^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Implementation of the policy database.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Author : Stephen Smalley, <sds@tycho.nsa.gov>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * Updated: Trusted Computer Solutions, Inc. <dgoeddel@trustedcs.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * Support for enhanced MLS infrastructure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * Updated: Frank Mayer <mayerf@tresys.com> and Karl MacMillan <kmacmillan@tresys.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) * Added conditional policy language extensions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) * Updated: Hewlett-Packard <paul@paul-moore.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) * Added support for the policy capability bitmap
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) * Update: Mellanox Techonologies
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) * Added Infiniband support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) * Copyright (C) 2016 Mellanox Techonologies
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) * Copyright (C) 2007 Hewlett-Packard Development Company, L.P.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) * Copyright (C) 2004-2005 Trusted Computer Solutions, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) * Copyright (C) 2003 - 2004 Tresys Technology, LLC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #include <linux/sched.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #include <linux/string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #include <linux/errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #include <linux/audit.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #include "security.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #include "policydb.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #include "conditional.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #include "mls.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #include "services.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #define _DEBUG_HASHES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #ifdef DEBUG_HASHES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) static const char *symtab_name[SYM_NUM] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) "common prefixes",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) "classes",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) "roles",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) "types",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) "users",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) "bools",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) "levels",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) "categories",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) struct policydb_compat_info {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) int version;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) int sym_num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) int ocon_num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) /* These need to be updated if SYM_NUM or OCON_NUM changes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) static struct policydb_compat_info policydb_compat[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) .version = POLICYDB_VERSION_BASE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) .sym_num = SYM_NUM - 3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) .ocon_num = OCON_NUM - 3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) .version = POLICYDB_VERSION_BOOL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) .sym_num = SYM_NUM - 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) .ocon_num = OCON_NUM - 3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) .version = POLICYDB_VERSION_IPV6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) .sym_num = SYM_NUM - 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) .ocon_num = OCON_NUM - 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) .version = POLICYDB_VERSION_NLCLASS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) .sym_num = SYM_NUM - 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) .ocon_num = OCON_NUM - 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) .version = POLICYDB_VERSION_MLS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) .sym_num = SYM_NUM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) .ocon_num = OCON_NUM - 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) .version = POLICYDB_VERSION_AVTAB,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) .sym_num = SYM_NUM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) .ocon_num = OCON_NUM - 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) .version = POLICYDB_VERSION_RANGETRANS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) .sym_num = SYM_NUM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) .ocon_num = OCON_NUM - 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) .version = POLICYDB_VERSION_POLCAP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) .sym_num = SYM_NUM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) .ocon_num = OCON_NUM - 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) .version = POLICYDB_VERSION_PERMISSIVE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) .sym_num = SYM_NUM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) .ocon_num = OCON_NUM - 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) .version = POLICYDB_VERSION_BOUNDARY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) .sym_num = SYM_NUM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) .ocon_num = OCON_NUM - 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) .version = POLICYDB_VERSION_FILENAME_TRANS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) .sym_num = SYM_NUM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) .ocon_num = OCON_NUM - 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) .version = POLICYDB_VERSION_ROLETRANS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) .sym_num = SYM_NUM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) .ocon_num = OCON_NUM - 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) .version = POLICYDB_VERSION_NEW_OBJECT_DEFAULTS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) .sym_num = SYM_NUM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) .ocon_num = OCON_NUM - 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) .version = POLICYDB_VERSION_DEFAULT_TYPE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) .sym_num = SYM_NUM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) .ocon_num = OCON_NUM - 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) .version = POLICYDB_VERSION_CONSTRAINT_NAMES,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) .sym_num = SYM_NUM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) .ocon_num = OCON_NUM - 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) .version = POLICYDB_VERSION_XPERMS_IOCTL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) .sym_num = SYM_NUM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) .ocon_num = OCON_NUM - 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) .version = POLICYDB_VERSION_INFINIBAND,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) .sym_num = SYM_NUM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) .ocon_num = OCON_NUM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) .version = POLICYDB_VERSION_GLBLUB,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) .sym_num = SYM_NUM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) .ocon_num = OCON_NUM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) .version = POLICYDB_VERSION_COMP_FTRANS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) .sym_num = SYM_NUM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) .ocon_num = OCON_NUM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) static struct policydb_compat_info *policydb_lookup_compat(int version)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) struct policydb_compat_info *info = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) for (i = 0; i < ARRAY_SIZE(policydb_compat); i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) if (policydb_compat[i].version == version) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) info = &policydb_compat[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) return info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) * The following *_destroy functions are used to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) * free any memory allocated for each kind of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) * symbol data in the policy database.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) static int perm_destroy(void *key, void *datum, void *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) kfree(key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) kfree(datum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) static int common_destroy(void *key, void *datum, void *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) struct common_datum *comdatum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) kfree(key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) if (datum) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) comdatum = datum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) hashtab_map(&comdatum->permissions.table, perm_destroy, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) hashtab_destroy(&comdatum->permissions.table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) kfree(datum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) static void constraint_expr_destroy(struct constraint_expr *expr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) if (expr) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) ebitmap_destroy(&expr->names);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) if (expr->type_names) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) ebitmap_destroy(&expr->type_names->types);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) ebitmap_destroy(&expr->type_names->negset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) kfree(expr->type_names);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) kfree(expr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) static int cls_destroy(void *key, void *datum, void *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) struct class_datum *cladatum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) struct constraint_node *constraint, *ctemp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) struct constraint_expr *e, *etmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) kfree(key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) if (datum) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) cladatum = datum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) hashtab_map(&cladatum->permissions.table, perm_destroy, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) hashtab_destroy(&cladatum->permissions.table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) constraint = cladatum->constraints;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) while (constraint) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) e = constraint->expr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) while (e) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) etmp = e;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) e = e->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) constraint_expr_destroy(etmp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) ctemp = constraint;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) constraint = constraint->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) kfree(ctemp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) constraint = cladatum->validatetrans;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) while (constraint) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) e = constraint->expr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) while (e) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) etmp = e;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) e = e->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) constraint_expr_destroy(etmp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) ctemp = constraint;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) constraint = constraint->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) kfree(ctemp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) kfree(cladatum->comkey);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) kfree(datum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) static int role_destroy(void *key, void *datum, void *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) struct role_datum *role;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) kfree(key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) if (datum) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) role = datum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) ebitmap_destroy(&role->dominates);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) ebitmap_destroy(&role->types);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) kfree(datum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) static int type_destroy(void *key, void *datum, void *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) kfree(key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) kfree(datum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) static int user_destroy(void *key, void *datum, void *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) struct user_datum *usrdatum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) kfree(key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) if (datum) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) usrdatum = datum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) ebitmap_destroy(&usrdatum->roles);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) ebitmap_destroy(&usrdatum->range.level[0].cat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) ebitmap_destroy(&usrdatum->range.level[1].cat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) ebitmap_destroy(&usrdatum->dfltlevel.cat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) kfree(datum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) static int sens_destroy(void *key, void *datum, void *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) struct level_datum *levdatum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) kfree(key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) if (datum) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) levdatum = datum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) if (levdatum->level)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) ebitmap_destroy(&levdatum->level->cat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) kfree(levdatum->level);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) kfree(datum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) static int cat_destroy(void *key, void *datum, void *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) kfree(key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) kfree(datum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) static int (*destroy_f[SYM_NUM]) (void *key, void *datum, void *datap) =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) common_destroy,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) cls_destroy,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) role_destroy,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) type_destroy,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) user_destroy,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) cond_destroy_bool,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) sens_destroy,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) cat_destroy,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) static int filenametr_destroy(void *key, void *datum, void *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) struct filename_trans_key *ft = key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) struct filename_trans_datum *next, *d = datum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) kfree(ft->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) kfree(key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) do {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) ebitmap_destroy(&d->stypes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) next = d->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) kfree(d);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) d = next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) } while (unlikely(d));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) cond_resched();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) static int range_tr_destroy(void *key, void *datum, void *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) struct mls_range *rt = datum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) kfree(key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) ebitmap_destroy(&rt->level[0].cat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) ebitmap_destroy(&rt->level[1].cat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) kfree(datum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) cond_resched();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) static int role_tr_destroy(void *key, void *datum, void *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) kfree(key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) kfree(datum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) static void ocontext_destroy(struct ocontext *c, int i)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) if (!c)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) context_destroy(&c->context[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) context_destroy(&c->context[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) if (i == OCON_ISID || i == OCON_FS ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) i == OCON_NETIF || i == OCON_FSUSE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) kfree(c->u.name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) kfree(c);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) * Initialize the role table.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) static int roles_init(struct policydb *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) char *key = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) struct role_datum *role;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) role = kzalloc(sizeof(*role), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) if (!role)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) role->value = ++p->p_roles.nprim;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) if (role->value != OBJECT_R_VAL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) rc = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) key = kstrdup(OBJECT_R, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) if (!key)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) rc = symtab_insert(&p->p_roles, key, role);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) kfree(key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) kfree(role);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) static u32 filenametr_hash(const void *k)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) const struct filename_trans_key *ft = k;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) unsigned long hash;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) unsigned int byte_num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) unsigned char focus;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) hash = ft->ttype ^ ft->tclass;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) byte_num = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) while ((focus = ft->name[byte_num++]))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) hash = partial_name_hash(focus, hash);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) return hash;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) static int filenametr_cmp(const void *k1, const void *k2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) const struct filename_trans_key *ft1 = k1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) const struct filename_trans_key *ft2 = k2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) int v;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) v = ft1->ttype - ft2->ttype;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) if (v)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) return v;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) v = ft1->tclass - ft2->tclass;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) if (v)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) return v;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) return strcmp(ft1->name, ft2->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) static const struct hashtab_key_params filenametr_key_params = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) .hash = filenametr_hash,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) .cmp = filenametr_cmp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) struct filename_trans_datum *policydb_filenametr_search(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) struct policydb *p, struct filename_trans_key *key)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) return hashtab_search(&p->filename_trans, key, filenametr_key_params);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) static u32 rangetr_hash(const void *k)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) const struct range_trans *key = k;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) return key->source_type + (key->target_type << 3) +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) (key->target_class << 5);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) static int rangetr_cmp(const void *k1, const void *k2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) const struct range_trans *key1 = k1, *key2 = k2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) int v;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) v = key1->source_type - key2->source_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) if (v)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) return v;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) v = key1->target_type - key2->target_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) if (v)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) return v;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) v = key1->target_class - key2->target_class;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) return v;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) static const struct hashtab_key_params rangetr_key_params = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) .hash = rangetr_hash,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) .cmp = rangetr_cmp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) struct mls_range *policydb_rangetr_search(struct policydb *p,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) struct range_trans *key)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) return hashtab_search(&p->range_tr, key, rangetr_key_params);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) static u32 role_trans_hash(const void *k)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) const struct role_trans_key *key = k;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) return key->role + (key->type << 3) + (key->tclass << 5);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) static int role_trans_cmp(const void *k1, const void *k2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) const struct role_trans_key *key1 = k1, *key2 = k2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) int v;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) v = key1->role - key2->role;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) if (v)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) return v;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) v = key1->type - key2->type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) if (v)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) return v;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) return key1->tclass - key2->tclass;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) static const struct hashtab_key_params roletr_key_params = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) .hash = role_trans_hash,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) .cmp = role_trans_cmp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) struct role_trans_datum *policydb_roletr_search(struct policydb *p,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) struct role_trans_key *key)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) return hashtab_search(&p->role_tr, key, roletr_key_params);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) * Initialize a policy database structure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) static void policydb_init(struct policydb *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) memset(p, 0, sizeof(*p));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) avtab_init(&p->te_avtab);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) cond_policydb_init(p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) ebitmap_init(&p->filename_trans_ttypes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) ebitmap_init(&p->policycaps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) ebitmap_init(&p->permissive_map);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) * The following *_index functions are used to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) * define the val_to_name and val_to_struct arrays
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) * in a policy database structure. The val_to_name
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) * arrays are used when converting security context
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) * structures into string representations. The
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) * val_to_struct arrays are used when the attributes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) * of a class, role, or user are needed.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) static int common_index(void *key, void *datum, void *datap)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) struct policydb *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) struct common_datum *comdatum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) comdatum = datum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) p = datap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) if (!comdatum->value || comdatum->value > p->p_commons.nprim)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) p->sym_val_to_name[SYM_COMMONS][comdatum->value - 1] = key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) static int class_index(void *key, void *datum, void *datap)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) struct policydb *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) struct class_datum *cladatum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) cladatum = datum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) p = datap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) if (!cladatum->value || cladatum->value > p->p_classes.nprim)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) p->sym_val_to_name[SYM_CLASSES][cladatum->value - 1] = key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) p->class_val_to_struct[cladatum->value - 1] = cladatum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) static int role_index(void *key, void *datum, void *datap)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) struct policydb *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) struct role_datum *role;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) role = datum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) p = datap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) if (!role->value
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) || role->value > p->p_roles.nprim
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) || role->bounds > p->p_roles.nprim)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) p->sym_val_to_name[SYM_ROLES][role->value - 1] = key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) p->role_val_to_struct[role->value - 1] = role;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) static int type_index(void *key, void *datum, void *datap)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) struct policydb *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) struct type_datum *typdatum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) typdatum = datum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) p = datap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) if (typdatum->primary) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) if (!typdatum->value
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) || typdatum->value > p->p_types.nprim
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) || typdatum->bounds > p->p_types.nprim)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) p->sym_val_to_name[SYM_TYPES][typdatum->value - 1] = key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) p->type_val_to_struct[typdatum->value - 1] = typdatum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) static int user_index(void *key, void *datum, void *datap)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) struct policydb *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) struct user_datum *usrdatum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) usrdatum = datum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) p = datap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) if (!usrdatum->value
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) || usrdatum->value > p->p_users.nprim
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) || usrdatum->bounds > p->p_users.nprim)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) p->sym_val_to_name[SYM_USERS][usrdatum->value - 1] = key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) p->user_val_to_struct[usrdatum->value - 1] = usrdatum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) static int sens_index(void *key, void *datum, void *datap)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) struct policydb *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) struct level_datum *levdatum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) levdatum = datum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) p = datap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) if (!levdatum->isalias) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) if (!levdatum->level->sens ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) levdatum->level->sens > p->p_levels.nprim)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) p->sym_val_to_name[SYM_LEVELS][levdatum->level->sens - 1] = key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) static int cat_index(void *key, void *datum, void *datap)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) struct policydb *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) struct cat_datum *catdatum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) catdatum = datum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) p = datap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) if (!catdatum->isalias) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) if (!catdatum->value || catdatum->value > p->p_cats.nprim)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) p->sym_val_to_name[SYM_CATS][catdatum->value - 1] = key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) static int (*index_f[SYM_NUM]) (void *key, void *datum, void *datap) =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) common_index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) class_index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) role_index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) type_index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) user_index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) cond_index_bool,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) sens_index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) cat_index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) #ifdef DEBUG_HASHES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) static void hash_eval(struct hashtab *h, const char *hash_name)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) struct hashtab_info info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) hashtab_stat(h, &info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) pr_debug("SELinux: %s: %d entries and %d/%d buckets used, longest chain length %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) hash_name, h->nel, info.slots_used, h->size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) info.max_chain_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) static void symtab_hash_eval(struct symtab *s)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) for (i = 0; i < SYM_NUM; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) hash_eval(&s[i].table, symtab_name[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) static inline void hash_eval(struct hashtab *h, char *hash_name)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) * Define the other val_to_name and val_to_struct arrays
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) * in a policy database structure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) * Caller must clean up on failure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) static int policydb_index(struct policydb *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) int i, rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) if (p->mls_enabled)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) pr_debug("SELinux: %d users, %d roles, %d types, %d bools, %d sens, %d cats\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) p->p_users.nprim, p->p_roles.nprim, p->p_types.nprim,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) p->p_bools.nprim, p->p_levels.nprim, p->p_cats.nprim);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) pr_debug("SELinux: %d users, %d roles, %d types, %d bools\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) p->p_users.nprim, p->p_roles.nprim, p->p_types.nprim,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) p->p_bools.nprim);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) pr_debug("SELinux: %d classes, %d rules\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) p->p_classes.nprim, p->te_avtab.nel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) #ifdef DEBUG_HASHES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) avtab_hash_eval(&p->te_avtab, "rules");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) symtab_hash_eval(p->symtab);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) p->class_val_to_struct = kcalloc(p->p_classes.nprim,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) sizeof(*p->class_val_to_struct),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) if (!p->class_val_to_struct)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) p->role_val_to_struct = kcalloc(p->p_roles.nprim,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) sizeof(*p->role_val_to_struct),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) if (!p->role_val_to_struct)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) p->user_val_to_struct = kcalloc(p->p_users.nprim,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) sizeof(*p->user_val_to_struct),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) if (!p->user_val_to_struct)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) p->type_val_to_struct = kvcalloc(p->p_types.nprim,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) sizeof(*p->type_val_to_struct),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) if (!p->type_val_to_struct)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) rc = cond_init_bool_indexes(p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) for (i = 0; i < SYM_NUM; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) p->sym_val_to_name[i] = kvcalloc(p->symtab[i].nprim,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) sizeof(char *),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) if (!p->sym_val_to_name[i])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) rc = hashtab_map(&p->symtab[i].table, index_f[i], p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) rc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) * Free any memory allocated by a policy database structure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) void policydb_destroy(struct policydb *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) struct ocontext *c, *ctmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) struct genfs *g, *gtmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) struct role_allow *ra, *lra = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) for (i = 0; i < SYM_NUM; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) cond_resched();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) hashtab_map(&p->symtab[i].table, destroy_f[i], NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) hashtab_destroy(&p->symtab[i].table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) for (i = 0; i < SYM_NUM; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) kvfree(p->sym_val_to_name[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) kfree(p->class_val_to_struct);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) kfree(p->role_val_to_struct);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) kfree(p->user_val_to_struct);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) kvfree(p->type_val_to_struct);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) avtab_destroy(&p->te_avtab);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) for (i = 0; i < OCON_NUM; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) cond_resched();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) c = p->ocontexts[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812) while (c) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) ctmp = c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) c = c->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) ocontext_destroy(ctmp, i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817) p->ocontexts[i] = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) g = p->genfs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) while (g) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822) cond_resched();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) kfree(g->fstype);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824) c = g->head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) while (c) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) ctmp = c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) c = c->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) ocontext_destroy(ctmp, OCON_FSUSE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830) gtmp = g;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831) g = g->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) kfree(gtmp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) p->genfs = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836) cond_policydb_destroy(p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) hashtab_map(&p->role_tr, role_tr_destroy, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839) hashtab_destroy(&p->role_tr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841) for (ra = p->role_allow; ra; ra = ra->next) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842) cond_resched();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) kfree(lra);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844) lra = ra;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846) kfree(lra);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848) hashtab_map(&p->filename_trans, filenametr_destroy, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849) hashtab_destroy(&p->filename_trans);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851) hashtab_map(&p->range_tr, range_tr_destroy, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) hashtab_destroy(&p->range_tr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) if (p->type_attr_map_array) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855) for (i = 0; i < p->p_types.nprim; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) ebitmap_destroy(&p->type_attr_map_array[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857) kvfree(p->type_attr_map_array);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860) ebitmap_destroy(&p->filename_trans_ttypes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861) ebitmap_destroy(&p->policycaps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862) ebitmap_destroy(&p->permissive_map);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866) * Load the initial SIDs specified in a policy database
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867) * structure into a SID table.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869) int policydb_load_isids(struct policydb *p, struct sidtab *s)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871) struct ocontext *head, *c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874) rc = sidtab_init(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) if (rc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) pr_err("SELinux: out of memory on SID table init\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880) head = p->ocontexts[OCON_ISID];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881) for (c = head; c; c = c->next) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882) u32 sid = c->sid[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883) const char *name = security_get_initial_sid_context(sid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885) if (sid == SECSID_NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) pr_err("SELinux: SID 0 was assigned a context.\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887) sidtab_destroy(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891) /* Ignore initial SIDs unused by this kernel. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892) if (!name)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895) rc = sidtab_set_initial(s, sid, &c->context[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896) if (rc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897) pr_err("SELinux: unable to load initial SID %s.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898) name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899) sidtab_destroy(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906) int policydb_class_isvalid(struct policydb *p, unsigned int class)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908) if (!class || class > p->p_classes.nprim)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 912)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 913) int policydb_role_isvalid(struct policydb *p, unsigned int role)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 914) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915) if (!role || role > p->p_roles.nprim)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920) int policydb_type_isvalid(struct policydb *p, unsigned int type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922) if (!type || type > p->p_types.nprim)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928) * Return 1 if the fields in the security context
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929) * structure `c' are valid. Return 0 otherwise.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 931) int policydb_context_isvalid(struct policydb *p, struct context *c)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 932) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 933) struct role_datum *role;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 934) struct user_datum *usrdatum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 935)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 936) if (!c->role || c->role > p->p_roles.nprim)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 937) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 938)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 939) if (!c->user || c->user > p->p_users.nprim)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 940) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 941)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 942) if (!c->type || c->type > p->p_types.nprim)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 943) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 944)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 945) if (c->role != OBJECT_R_VAL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 946) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 947) * Role must be authorized for the type.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 948) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 949) role = p->role_val_to_struct[c->role - 1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 950) if (!role || !ebitmap_get_bit(&role->types, c->type - 1))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 951) /* role may not be associated with type */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 952) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 953)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 954) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 955) * User must be authorized for the role.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 956) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 957) usrdatum = p->user_val_to_struct[c->user - 1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 958) if (!usrdatum)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 959) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 960)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 961) if (!ebitmap_get_bit(&usrdatum->roles, c->role - 1))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 962) /* user may not be associated with role */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 963) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 964) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 965)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 966) if (!mls_context_isvalid(p, c))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 967) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 968)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 969) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 970) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 971)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 972) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 973) * Read a MLS range structure from a policydb binary
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 974) * representation file.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 975) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 976) static int mls_read_range_helper(struct mls_range *r, void *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 977) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 978) __le32 buf[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 979) u32 items;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 980) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 981)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 982) rc = next_entry(buf, fp, sizeof(u32));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 983) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 984) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 985)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 986) rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 987) items = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 988) if (items > ARRAY_SIZE(buf)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 989) pr_err("SELinux: mls: range overflow\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 990) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 991) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 992)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 993) rc = next_entry(buf, fp, sizeof(u32) * items);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 994) if (rc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 995) pr_err("SELinux: mls: truncated range\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 996) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 997) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 998)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 999) r->level[0].sens = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1000) if (items > 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1001) r->level[1].sens = le32_to_cpu(buf[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1002) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1003) r->level[1].sens = r->level[0].sens;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1004)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1005) rc = ebitmap_read(&r->level[0].cat, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1006) if (rc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1007) pr_err("SELinux: mls: error reading low categories\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1008) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1009) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1010) if (items > 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1011) rc = ebitmap_read(&r->level[1].cat, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1012) if (rc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1013) pr_err("SELinux: mls: error reading high categories\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1014) goto bad_high;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1015) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1016) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1017) rc = ebitmap_cpy(&r->level[1].cat, &r->level[0].cat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1018) if (rc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1019) pr_err("SELinux: mls: out of memory\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1020) goto bad_high;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1021) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1022) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1023)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1024) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1025) bad_high:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1026) ebitmap_destroy(&r->level[0].cat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1027) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1028) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1029) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1030)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1031) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1032) * Read and validate a security context structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1033) * from a policydb binary representation file.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1034) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1035) static int context_read_and_validate(struct context *c,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1036) struct policydb *p,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1037) void *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1038) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1039) __le32 buf[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1040) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1041)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1042) rc = next_entry(buf, fp, sizeof buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1043) if (rc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1044) pr_err("SELinux: context truncated\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1045) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1046) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1047) c->user = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1048) c->role = le32_to_cpu(buf[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1049) c->type = le32_to_cpu(buf[2]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1050) if (p->policyvers >= POLICYDB_VERSION_MLS) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1051) rc = mls_read_range_helper(&c->range, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1052) if (rc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1053) pr_err("SELinux: error reading MLS range of context\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1054) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1055) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1056) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1057)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1058) rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1059) if (!policydb_context_isvalid(p, c)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1060) pr_err("SELinux: invalid security context\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1061) context_destroy(c);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1062) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1063) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1064) rc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1065) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1066) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1067) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1068)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1069) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1070) * The following *_read functions are used to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1071) * read the symbol data from a policy database
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1072) * binary representation file.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1073) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1074)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1075) static int str_read(char **strp, gfp_t flags, void *fp, u32 len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1076) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1077) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1078) char *str;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1079)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1080) if ((len == 0) || (len == (u32)-1))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1081) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1082)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1083) str = kmalloc(len + 1, flags | __GFP_NOWARN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1084) if (!str)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1085) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1086)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1087) rc = next_entry(str, fp, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1088) if (rc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1089) kfree(str);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1090) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1091) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1092)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1093) str[len] = '\0';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1094) *strp = str;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1095) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1096) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1097)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1098) static int perm_read(struct policydb *p, struct symtab *s, void *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1099) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1100) char *key = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1101) struct perm_datum *perdatum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1102) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1103) __le32 buf[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1104) u32 len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1106) perdatum = kzalloc(sizeof(*perdatum), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1107) if (!perdatum)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1108) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1110) rc = next_entry(buf, fp, sizeof buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1111) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1112) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1114) len = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1115) perdatum->value = le32_to_cpu(buf[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1116)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1117) rc = str_read(&key, GFP_KERNEL, fp, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1118) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1119) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1121) rc = symtab_insert(s, key, perdatum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1122) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1123) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1124)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1125) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1126) bad:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1127) perm_destroy(key, perdatum, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1128) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1129) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1131) static int common_read(struct policydb *p, struct symtab *s, void *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1132) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1133) char *key = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1134) struct common_datum *comdatum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1135) __le32 buf[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1136) u32 len, nel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1137) int i, rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1138)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1139) comdatum = kzalloc(sizeof(*comdatum), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1140) if (!comdatum)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1141) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1143) rc = next_entry(buf, fp, sizeof buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1144) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1145) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1146)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1147) len = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1148) comdatum->value = le32_to_cpu(buf[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1149) nel = le32_to_cpu(buf[3]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1151) rc = symtab_init(&comdatum->permissions, nel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1152) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1153) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1154) comdatum->permissions.nprim = le32_to_cpu(buf[2]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1155)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1156) rc = str_read(&key, GFP_KERNEL, fp, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1157) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1158) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1159)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1160) for (i = 0; i < nel; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1161) rc = perm_read(p, &comdatum->permissions, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1162) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1163) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1164) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1165)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1166) rc = symtab_insert(s, key, comdatum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1167) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1168) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1169) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1170) bad:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1171) common_destroy(key, comdatum, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1172) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1173) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1174)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1175) static void type_set_init(struct type_set *t)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1176) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1177) ebitmap_init(&t->types);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1178) ebitmap_init(&t->negset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1179) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1180)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1181) static int type_set_read(struct type_set *t, void *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1182) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1183) __le32 buf[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1184) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1185)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1186) if (ebitmap_read(&t->types, fp))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1187) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1188) if (ebitmap_read(&t->negset, fp))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1189) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1190)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1191) rc = next_entry(buf, fp, sizeof(u32));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1192) if (rc < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1193) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1194) t->flags = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1195)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1196) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1197) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1199)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1200) static int read_cons_helper(struct policydb *p,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1201) struct constraint_node **nodep,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1202) int ncons, int allowxtarget, void *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1203) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1204) struct constraint_node *c, *lc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1205) struct constraint_expr *e, *le;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1206) __le32 buf[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1207) u32 nexpr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1208) int rc, i, j, depth;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1210) lc = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1211) for (i = 0; i < ncons; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1212) c = kzalloc(sizeof(*c), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1213) if (!c)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1214) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1215)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1216) if (lc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1217) lc->next = c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1218) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1219) *nodep = c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1220)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1221) rc = next_entry(buf, fp, (sizeof(u32) * 2));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1222) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1223) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1224) c->permissions = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1225) nexpr = le32_to_cpu(buf[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1226) le = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1227) depth = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1228) for (j = 0; j < nexpr; j++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1229) e = kzalloc(sizeof(*e), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1230) if (!e)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1231) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1232)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1233) if (le)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1234) le->next = e;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1235) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1236) c->expr = e;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1237)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1238) rc = next_entry(buf, fp, (sizeof(u32) * 3));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1239) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1240) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1241) e->expr_type = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1242) e->attr = le32_to_cpu(buf[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1243) e->op = le32_to_cpu(buf[2]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1244)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1245) switch (e->expr_type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1246) case CEXPR_NOT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1247) if (depth < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1248) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1249) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1250) case CEXPR_AND:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1251) case CEXPR_OR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1252) if (depth < 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1253) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1254) depth--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1255) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1256) case CEXPR_ATTR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1257) if (depth == (CEXPR_MAXDEPTH - 1))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1258) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1259) depth++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1260) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1261) case CEXPR_NAMES:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1262) if (!allowxtarget && (e->attr & CEXPR_XTARGET))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1263) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1264) if (depth == (CEXPR_MAXDEPTH - 1))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1265) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1266) depth++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1267) rc = ebitmap_read(&e->names, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1268) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1269) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1270) if (p->policyvers >=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1271) POLICYDB_VERSION_CONSTRAINT_NAMES) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1272) e->type_names = kzalloc(sizeof
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1273) (*e->type_names), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1274) if (!e->type_names)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1275) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1276) type_set_init(e->type_names);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1277) rc = type_set_read(e->type_names, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1278) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1279) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1280) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1281) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1282) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1283) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1284) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1285) le = e;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1286) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1287) if (depth != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1288) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1289) lc = c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1290) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1291)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1292) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1293) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1294)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1295) static int class_read(struct policydb *p, struct symtab *s, void *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1296) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1297) char *key = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1298) struct class_datum *cladatum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1299) __le32 buf[6];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1300) u32 len, len2, ncons, nel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1301) int i, rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1302)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1303) cladatum = kzalloc(sizeof(*cladatum), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1304) if (!cladatum)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1305) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1306)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1307) rc = next_entry(buf, fp, sizeof(u32)*6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1308) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1309) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1310)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1311) len = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1312) len2 = le32_to_cpu(buf[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1313) cladatum->value = le32_to_cpu(buf[2]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1314) nel = le32_to_cpu(buf[4]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1315)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1316) rc = symtab_init(&cladatum->permissions, nel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1317) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1318) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1319) cladatum->permissions.nprim = le32_to_cpu(buf[3]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1320)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1321) ncons = le32_to_cpu(buf[5]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1322)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1323) rc = str_read(&key, GFP_KERNEL, fp, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1324) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1325) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1326)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1327) if (len2) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1328) rc = str_read(&cladatum->comkey, GFP_KERNEL, fp, len2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1329) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1330) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1331)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1332) rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1333) cladatum->comdatum = symtab_search(&p->p_commons,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1334) cladatum->comkey);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1335) if (!cladatum->comdatum) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1336) pr_err("SELinux: unknown common %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1337) cladatum->comkey);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1338) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1339) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1340) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1341) for (i = 0; i < nel; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1342) rc = perm_read(p, &cladatum->permissions, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1343) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1344) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1345) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1346)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1347) rc = read_cons_helper(p, &cladatum->constraints, ncons, 0, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1348) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1349) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1350)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1351) if (p->policyvers >= POLICYDB_VERSION_VALIDATETRANS) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1352) /* grab the validatetrans rules */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1353) rc = next_entry(buf, fp, sizeof(u32));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1354) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1355) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1356) ncons = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1357) rc = read_cons_helper(p, &cladatum->validatetrans,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1358) ncons, 1, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1359) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1360) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1361) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1362)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1363) if (p->policyvers >= POLICYDB_VERSION_NEW_OBJECT_DEFAULTS) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1364) rc = next_entry(buf, fp, sizeof(u32) * 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1365) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1366) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1367)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1368) cladatum->default_user = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1369) cladatum->default_role = le32_to_cpu(buf[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1370) cladatum->default_range = le32_to_cpu(buf[2]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1371) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1372)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1373) if (p->policyvers >= POLICYDB_VERSION_DEFAULT_TYPE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1374) rc = next_entry(buf, fp, sizeof(u32) * 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1375) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1376) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1377) cladatum->default_type = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1378) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1379)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1380) rc = symtab_insert(s, key, cladatum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1381) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1382) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1383)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1384) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1385) bad:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1386) cls_destroy(key, cladatum, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1387) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1388) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1389)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1390) static int role_read(struct policydb *p, struct symtab *s, void *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1391) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1392) char *key = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1393) struct role_datum *role;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1394) int rc, to_read = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1395) __le32 buf[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1396) u32 len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1397)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1398) role = kzalloc(sizeof(*role), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1399) if (!role)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1400) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1401)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1402) if (p->policyvers >= POLICYDB_VERSION_BOUNDARY)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1403) to_read = 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1404)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1405) rc = next_entry(buf, fp, sizeof(buf[0]) * to_read);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1406) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1407) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1408)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1409) len = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1410) role->value = le32_to_cpu(buf[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1411) if (p->policyvers >= POLICYDB_VERSION_BOUNDARY)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1412) role->bounds = le32_to_cpu(buf[2]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1413)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1414) rc = str_read(&key, GFP_KERNEL, fp, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1415) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1416) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1417)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1418) rc = ebitmap_read(&role->dominates, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1419) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1420) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1421)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1422) rc = ebitmap_read(&role->types, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1423) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1424) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1425)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1426) if (strcmp(key, OBJECT_R) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1427) rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1428) if (role->value != OBJECT_R_VAL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1429) pr_err("SELinux: Role %s has wrong value %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1430) OBJECT_R, role->value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1431) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1432) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1433) rc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1434) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1435) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1436)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1437) rc = symtab_insert(s, key, role);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1438) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1439) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1440) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1441) bad:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1442) role_destroy(key, role, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1443) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1444) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1445)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1446) static int type_read(struct policydb *p, struct symtab *s, void *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1447) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1448) char *key = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1449) struct type_datum *typdatum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1450) int rc, to_read = 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1451) __le32 buf[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1452) u32 len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1453)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1454) typdatum = kzalloc(sizeof(*typdatum), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1455) if (!typdatum)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1456) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1457)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1458) if (p->policyvers >= POLICYDB_VERSION_BOUNDARY)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1459) to_read = 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1460)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1461) rc = next_entry(buf, fp, sizeof(buf[0]) * to_read);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1462) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1463) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1464)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1465) len = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1466) typdatum->value = le32_to_cpu(buf[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1467) if (p->policyvers >= POLICYDB_VERSION_BOUNDARY) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1468) u32 prop = le32_to_cpu(buf[2]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1469)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1470) if (prop & TYPEDATUM_PROPERTY_PRIMARY)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1471) typdatum->primary = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1472) if (prop & TYPEDATUM_PROPERTY_ATTRIBUTE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1473) typdatum->attribute = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1474)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1475) typdatum->bounds = le32_to_cpu(buf[3]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1476) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1477) typdatum->primary = le32_to_cpu(buf[2]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1478) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1479)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1480) rc = str_read(&key, GFP_KERNEL, fp, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1481) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1482) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1483)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1484) rc = symtab_insert(s, key, typdatum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1485) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1486) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1487) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1488) bad:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1489) type_destroy(key, typdatum, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1490) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1491) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1492)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1493)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1494) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1495) * Read a MLS level structure from a policydb binary
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1496) * representation file.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1497) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1498) static int mls_read_level(struct mls_level *lp, void *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1499) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1500) __le32 buf[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1501) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1502)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1503) memset(lp, 0, sizeof(*lp));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1504)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1505) rc = next_entry(buf, fp, sizeof buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1506) if (rc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1507) pr_err("SELinux: mls: truncated level\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1508) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1509) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1510) lp->sens = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1511)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1512) rc = ebitmap_read(&lp->cat, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1513) if (rc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1514) pr_err("SELinux: mls: error reading level categories\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1515) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1516) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1517) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1518) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1519)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1520) static int user_read(struct policydb *p, struct symtab *s, void *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1521) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1522) char *key = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1523) struct user_datum *usrdatum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1524) int rc, to_read = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1525) __le32 buf[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1526) u32 len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1527)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1528) usrdatum = kzalloc(sizeof(*usrdatum), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1529) if (!usrdatum)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1530) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1531)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1532) if (p->policyvers >= POLICYDB_VERSION_BOUNDARY)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1533) to_read = 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1534)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1535) rc = next_entry(buf, fp, sizeof(buf[0]) * to_read);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1536) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1537) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1538)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1539) len = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1540) usrdatum->value = le32_to_cpu(buf[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1541) if (p->policyvers >= POLICYDB_VERSION_BOUNDARY)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1542) usrdatum->bounds = le32_to_cpu(buf[2]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1543)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1544) rc = str_read(&key, GFP_KERNEL, fp, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1545) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1546) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1547)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1548) rc = ebitmap_read(&usrdatum->roles, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1549) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1550) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1551)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1552) if (p->policyvers >= POLICYDB_VERSION_MLS) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1553) rc = mls_read_range_helper(&usrdatum->range, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1554) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1555) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1556) rc = mls_read_level(&usrdatum->dfltlevel, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1557) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1558) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1559) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1560)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1561) rc = symtab_insert(s, key, usrdatum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1562) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1563) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1564) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1565) bad:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1566) user_destroy(key, usrdatum, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1567) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1568) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1569)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1570) static int sens_read(struct policydb *p, struct symtab *s, void *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1571) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1572) char *key = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1573) struct level_datum *levdatum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1574) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1575) __le32 buf[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1576) u32 len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1577)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1578) levdatum = kzalloc(sizeof(*levdatum), GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1579) if (!levdatum)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1580) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1581)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1582) rc = next_entry(buf, fp, sizeof buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1583) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1584) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1585)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1586) len = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1587) levdatum->isalias = le32_to_cpu(buf[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1588)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1589) rc = str_read(&key, GFP_ATOMIC, fp, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1590) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1591) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1592)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1593) rc = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1594) levdatum->level = kmalloc(sizeof(*levdatum->level), GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1595) if (!levdatum->level)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1596) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1597)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1598) rc = mls_read_level(levdatum->level, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1599) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1600) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1601)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1602) rc = symtab_insert(s, key, levdatum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1603) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1604) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1605) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1606) bad:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1607) sens_destroy(key, levdatum, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1608) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1609) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1610)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1611) static int cat_read(struct policydb *p, struct symtab *s, void *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1612) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1613) char *key = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1614) struct cat_datum *catdatum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1615) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1616) __le32 buf[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1617) u32 len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1618)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1619) catdatum = kzalloc(sizeof(*catdatum), GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1620) if (!catdatum)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1621) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1622)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1623) rc = next_entry(buf, fp, sizeof buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1624) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1625) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1626)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1627) len = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1628) catdatum->value = le32_to_cpu(buf[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1629) catdatum->isalias = le32_to_cpu(buf[2]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1630)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1631) rc = str_read(&key, GFP_ATOMIC, fp, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1632) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1633) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1634)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1635) rc = symtab_insert(s, key, catdatum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1636) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1637) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1638) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1639) bad:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1640) cat_destroy(key, catdatum, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1641) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1642) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1643)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1644) static int (*read_f[SYM_NUM]) (struct policydb *p, struct symtab *s, void *fp) =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1645) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1646) common_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1647) class_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1648) role_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1649) type_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1650) user_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1651) cond_read_bool,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1652) sens_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1653) cat_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1654) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1655)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1656) static int user_bounds_sanity_check(void *key, void *datum, void *datap)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1657) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1658) struct user_datum *upper, *user;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1659) struct policydb *p = datap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1660) int depth = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1661)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1662) upper = user = datum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1663) while (upper->bounds) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1664) struct ebitmap_node *node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1665) unsigned long bit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1666)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1667) if (++depth == POLICYDB_BOUNDS_MAXDEPTH) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1668) pr_err("SELinux: user %s: "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1669) "too deep or looped boundary",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1670) (char *) key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1671) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1672) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1673)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1674) upper = p->user_val_to_struct[upper->bounds - 1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1675) ebitmap_for_each_positive_bit(&user->roles, node, bit) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1676) if (ebitmap_get_bit(&upper->roles, bit))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1677) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1678)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1679) pr_err("SELinux: boundary violated policy: "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1680) "user=%s role=%s bounds=%s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1681) sym_name(p, SYM_USERS, user->value - 1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1682) sym_name(p, SYM_ROLES, bit),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1683) sym_name(p, SYM_USERS, upper->value - 1));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1684)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1685) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1686) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1687) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1688)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1689) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1690) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1691)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1692) static int role_bounds_sanity_check(void *key, void *datum, void *datap)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1693) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1694) struct role_datum *upper, *role;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1695) struct policydb *p = datap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1696) int depth = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1697)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1698) upper = role = datum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1699) while (upper->bounds) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1700) struct ebitmap_node *node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1701) unsigned long bit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1702)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1703) if (++depth == POLICYDB_BOUNDS_MAXDEPTH) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1704) pr_err("SELinux: role %s: "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1705) "too deep or looped bounds\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1706) (char *) key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1707) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1708) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1709)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1710) upper = p->role_val_to_struct[upper->bounds - 1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1711) ebitmap_for_each_positive_bit(&role->types, node, bit) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1712) if (ebitmap_get_bit(&upper->types, bit))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1713) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1714)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1715) pr_err("SELinux: boundary violated policy: "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1716) "role=%s type=%s bounds=%s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1717) sym_name(p, SYM_ROLES, role->value - 1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1718) sym_name(p, SYM_TYPES, bit),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1719) sym_name(p, SYM_ROLES, upper->value - 1));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1720)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1721) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1722) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1723) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1724)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1725) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1726) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1727)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1728) static int type_bounds_sanity_check(void *key, void *datum, void *datap)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1729) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1730) struct type_datum *upper;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1731) struct policydb *p = datap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1732) int depth = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1733)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1734) upper = datum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1735) while (upper->bounds) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1736) if (++depth == POLICYDB_BOUNDS_MAXDEPTH) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1737) pr_err("SELinux: type %s: "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1738) "too deep or looped boundary\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1739) (char *) key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1740) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1741) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1742)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1743) upper = p->type_val_to_struct[upper->bounds - 1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1744) BUG_ON(!upper);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1745)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1746) if (upper->attribute) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1747) pr_err("SELinux: type %s: "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1748) "bounded by attribute %s",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1749) (char *) key,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1750) sym_name(p, SYM_TYPES, upper->value - 1));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1751) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1752) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1753) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1754)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1755) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1756) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1757)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1758) static int policydb_bounds_sanity_check(struct policydb *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1759) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1760) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1761)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1762) if (p->policyvers < POLICYDB_VERSION_BOUNDARY)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1763) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1764)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1765) rc = hashtab_map(&p->p_users.table, user_bounds_sanity_check, p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1766) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1767) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1768)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1769) rc = hashtab_map(&p->p_roles.table, role_bounds_sanity_check, p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1770) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1771) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1772)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1773) rc = hashtab_map(&p->p_types.table, type_bounds_sanity_check, p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1774) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1775) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1776)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1777) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1778) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1779)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1780) u16 string_to_security_class(struct policydb *p, const char *name)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1781) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1782) struct class_datum *cladatum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1783)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1784) cladatum = symtab_search(&p->p_classes, name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1785) if (!cladatum)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1786) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1787)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1788) return cladatum->value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1789) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1790)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1791) u32 string_to_av_perm(struct policydb *p, u16 tclass, const char *name)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1792) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1793) struct class_datum *cladatum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1794) struct perm_datum *perdatum = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1795) struct common_datum *comdatum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1796)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1797) if (!tclass || tclass > p->p_classes.nprim)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1798) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1799)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1800) cladatum = p->class_val_to_struct[tclass-1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1801) comdatum = cladatum->comdatum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1802) if (comdatum)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1803) perdatum = symtab_search(&comdatum->permissions, name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1804) if (!perdatum)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1805) perdatum = symtab_search(&cladatum->permissions, name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1806) if (!perdatum)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1807) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1808)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1809) return 1U << (perdatum->value-1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1810) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1811)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1812) static int range_read(struct policydb *p, void *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1813) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1814) struct range_trans *rt = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1815) struct mls_range *r = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1816) int i, rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1817) __le32 buf[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1818) u32 nel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1819)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1820) if (p->policyvers < POLICYDB_VERSION_MLS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1821) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1822)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1823) rc = next_entry(buf, fp, sizeof(u32));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1824) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1825) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1826)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1827) nel = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1828)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1829) rc = hashtab_init(&p->range_tr, nel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1830) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1831) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1832)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1833) for (i = 0; i < nel; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1834) rc = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1835) rt = kzalloc(sizeof(*rt), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1836) if (!rt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1837) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1838)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1839) rc = next_entry(buf, fp, (sizeof(u32) * 2));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1840) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1841) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1842)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1843) rt->source_type = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1844) rt->target_type = le32_to_cpu(buf[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1845) if (p->policyvers >= POLICYDB_VERSION_RANGETRANS) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1846) rc = next_entry(buf, fp, sizeof(u32));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1847) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1848) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1849) rt->target_class = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1850) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1851) rt->target_class = p->process_class;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1852)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1853) rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1854) if (!policydb_type_isvalid(p, rt->source_type) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1855) !policydb_type_isvalid(p, rt->target_type) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1856) !policydb_class_isvalid(p, rt->target_class))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1857) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1858)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1859) rc = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1860) r = kzalloc(sizeof(*r), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1861) if (!r)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1862) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1863)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1864) rc = mls_read_range_helper(r, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1865) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1866) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1867)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1868) rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1869) if (!mls_range_isvalid(p, r)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1870) pr_warn("SELinux: rangetrans: invalid range\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1871) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1872) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1873)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1874) rc = hashtab_insert(&p->range_tr, rt, r, rangetr_key_params);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1875) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1876) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1877)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1878) rt = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1879) r = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1880) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1881) hash_eval(&p->range_tr, "rangetr");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1882) rc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1883) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1884) kfree(rt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1885) kfree(r);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1886) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1887) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1888)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1889) static int filename_trans_read_helper_compat(struct policydb *p, void *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1890) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1891) struct filename_trans_key key, *ft = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1892) struct filename_trans_datum *last, *datum = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1893) char *name = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1894) u32 len, stype, otype;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1895) __le32 buf[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1896) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1897)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1898) /* length of the path component string */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1899) rc = next_entry(buf, fp, sizeof(u32));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1900) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1901) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1902) len = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1903)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1904) /* path component string */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1905) rc = str_read(&name, GFP_KERNEL, fp, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1906) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1907) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1908)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1909) rc = next_entry(buf, fp, sizeof(u32) * 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1910) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1911) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1912)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1913) stype = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1914) key.ttype = le32_to_cpu(buf[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1915) key.tclass = le32_to_cpu(buf[2]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1916) key.name = name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1917)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1918) otype = le32_to_cpu(buf[3]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1919)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1920) last = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1921) datum = policydb_filenametr_search(p, &key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1922) while (datum) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1923) if (unlikely(ebitmap_get_bit(&datum->stypes, stype - 1))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1924) /* conflicting/duplicate rules are ignored */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1925) datum = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1926) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1927) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1928) if (likely(datum->otype == otype))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1929) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1930) last = datum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1931) datum = datum->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1932) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1933) if (!datum) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1934) rc = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1935) datum = kmalloc(sizeof(*datum), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1936) if (!datum)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1937) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1938)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1939) ebitmap_init(&datum->stypes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1940) datum->otype = otype;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1941) datum->next = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1942)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1943) if (unlikely(last)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1944) last->next = datum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1945) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1946) rc = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1947) ft = kmemdup(&key, sizeof(key), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1948) if (!ft)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1949) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1950)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1951) rc = hashtab_insert(&p->filename_trans, ft, datum,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1952) filenametr_key_params);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1953) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1954) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1955) name = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1956)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1957) rc = ebitmap_set_bit(&p->filename_trans_ttypes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1958) key.ttype, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1959) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1960) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1961) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1962) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1963) kfree(name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1964) return ebitmap_set_bit(&datum->stypes, stype - 1, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1965)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1966) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1967) kfree(ft);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1968) kfree(name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1969) kfree(datum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1970) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1971) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1972)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1973) static int filename_trans_read_helper(struct policydb *p, void *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1974) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1975) struct filename_trans_key *ft = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1976) struct filename_trans_datum **dst, *datum, *first = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1977) char *name = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1978) u32 len, ttype, tclass, ndatum, i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1979) __le32 buf[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1980) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1981)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1982) /* length of the path component string */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1983) rc = next_entry(buf, fp, sizeof(u32));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1984) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1985) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1986) len = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1987)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1988) /* path component string */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1989) rc = str_read(&name, GFP_KERNEL, fp, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1990) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1991) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1992)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1993) rc = next_entry(buf, fp, sizeof(u32) * 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1994) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1995) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1996)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1997) ttype = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1998) tclass = le32_to_cpu(buf[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1999)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2000) ndatum = le32_to_cpu(buf[2]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2001) if (ndatum == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2002) pr_err("SELinux: Filename transition key with no datum\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2003) rc = -ENOENT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2004) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2005) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2006)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2007) dst = &first;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2008) for (i = 0; i < ndatum; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2009) rc = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2010) datum = kmalloc(sizeof(*datum), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2011) if (!datum)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2012) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2013)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2014) *dst = datum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2015)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2016) /* ebitmap_read() will at least init the bitmap */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2017) rc = ebitmap_read(&datum->stypes, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2018) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2019) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2020)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2021) rc = next_entry(buf, fp, sizeof(u32));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2022) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2023) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2024)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2025) datum->otype = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2026) datum->next = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2027)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2028) dst = &datum->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2029) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2030)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2031) rc = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2032) ft = kmalloc(sizeof(*ft), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2033) if (!ft)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2034) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2035)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2036) ft->ttype = ttype;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2037) ft->tclass = tclass;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2038) ft->name = name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2039)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2040) rc = hashtab_insert(&p->filename_trans, ft, first,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2041) filenametr_key_params);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2042) if (rc == -EEXIST)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2043) pr_err("SELinux: Duplicate filename transition key\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2044) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2045) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2046)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2047) return ebitmap_set_bit(&p->filename_trans_ttypes, ttype, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2048)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2049) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2050) kfree(ft);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2051) kfree(name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2052) while (first) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2053) datum = first;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2054) first = first->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2055)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2056) ebitmap_destroy(&datum->stypes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2057) kfree(datum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2058) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2059) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2060) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2061)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2062) static int filename_trans_read(struct policydb *p, void *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2063) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2064) u32 nel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2065) __le32 buf[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2066) int rc, i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2067)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2068) if (p->policyvers < POLICYDB_VERSION_FILENAME_TRANS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2069) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2070)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2071) rc = next_entry(buf, fp, sizeof(u32));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2072) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2073) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2074) nel = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2075)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2076) if (p->policyvers < POLICYDB_VERSION_COMP_FTRANS) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2077) p->compat_filename_trans_count = nel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2078)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2079) rc = hashtab_init(&p->filename_trans, (1 << 11));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2080) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2081) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2082)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2083) for (i = 0; i < nel; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2084) rc = filename_trans_read_helper_compat(p, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2085) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2086) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2087) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2088) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2089) rc = hashtab_init(&p->filename_trans, nel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2090) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2091) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2092)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2093) for (i = 0; i < nel; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2094) rc = filename_trans_read_helper(p, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2095) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2096) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2097) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2098) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2099) hash_eval(&p->filename_trans, "filenametr");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2100) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2101) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2103) static int genfs_read(struct policydb *p, void *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2104) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2105) int i, j, rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2106) u32 nel, nel2, len, len2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2107) __le32 buf[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2108) struct ocontext *l, *c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2109) struct ocontext *newc = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2110) struct genfs *genfs_p, *genfs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2111) struct genfs *newgenfs = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2113) rc = next_entry(buf, fp, sizeof(u32));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2114) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2115) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2116) nel = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2117)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2118) for (i = 0; i < nel; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2119) rc = next_entry(buf, fp, sizeof(u32));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2120) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2121) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2122) len = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2124) rc = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2125) newgenfs = kzalloc(sizeof(*newgenfs), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2126) if (!newgenfs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2127) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2129) rc = str_read(&newgenfs->fstype, GFP_KERNEL, fp, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2130) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2131) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2133) for (genfs_p = NULL, genfs = p->genfs; genfs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2134) genfs_p = genfs, genfs = genfs->next) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2135) rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2136) if (strcmp(newgenfs->fstype, genfs->fstype) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2137) pr_err("SELinux: dup genfs fstype %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2138) newgenfs->fstype);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2139) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2140) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2141) if (strcmp(newgenfs->fstype, genfs->fstype) < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2142) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2143) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2144) newgenfs->next = genfs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2145) if (genfs_p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2146) genfs_p->next = newgenfs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2147) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2148) p->genfs = newgenfs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2149) genfs = newgenfs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2150) newgenfs = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2151)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2152) rc = next_entry(buf, fp, sizeof(u32));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2153) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2154) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2155)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2156) nel2 = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2157) for (j = 0; j < nel2; j++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2158) rc = next_entry(buf, fp, sizeof(u32));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2159) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2160) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2161) len = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2163) rc = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2164) newc = kzalloc(sizeof(*newc), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2165) if (!newc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2166) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2167)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2168) rc = str_read(&newc->u.name, GFP_KERNEL, fp, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2169) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2170) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2171)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2172) rc = next_entry(buf, fp, sizeof(u32));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2173) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2174) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2175)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2176) newc->v.sclass = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2177) rc = context_read_and_validate(&newc->context[0], p, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2178) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2179) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2180)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2181) for (l = NULL, c = genfs->head; c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2182) l = c, c = c->next) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2183) rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2184) if (!strcmp(newc->u.name, c->u.name) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2185) (!c->v.sclass || !newc->v.sclass ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2186) newc->v.sclass == c->v.sclass)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2187) pr_err("SELinux: dup genfs entry (%s,%s)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2188) genfs->fstype, c->u.name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2189) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2190) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2191) len = strlen(newc->u.name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2192) len2 = strlen(c->u.name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2193) if (len > len2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2194) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2195) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2196)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2197) newc->next = c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2198) if (l)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2199) l->next = newc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2200) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2201) genfs->head = newc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2202) newc = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2203) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2204) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2205) rc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2206) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2207) if (newgenfs) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2208) kfree(newgenfs->fstype);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2209) kfree(newgenfs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2210) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2211) ocontext_destroy(newc, OCON_FSUSE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2212)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2213) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2214) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2215)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2216) static int ocontext_read(struct policydb *p, struct policydb_compat_info *info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2217) void *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2218) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2219) int i, j, rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2220) u32 nel, len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2221) __be64 prefixbuf[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2222) __le32 buf[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2223) struct ocontext *l, *c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2224) u32 nodebuf[8];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2225)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2226) for (i = 0; i < info->ocon_num; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2227) rc = next_entry(buf, fp, sizeof(u32));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2228) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2229) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2230) nel = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2231)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2232) l = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2233) for (j = 0; j < nel; j++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2234) rc = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2235) c = kzalloc(sizeof(*c), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2236) if (!c)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2237) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2238) if (l)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2239) l->next = c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2240) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2241) p->ocontexts[i] = c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2242) l = c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2243)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2244) switch (i) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2245) case OCON_ISID:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2246) rc = next_entry(buf, fp, sizeof(u32));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2247) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2248) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2249)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2250) c->sid[0] = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2251) rc = context_read_and_validate(&c->context[0], p, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2252) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2253) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2254) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2255) case OCON_FS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2256) case OCON_NETIF:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2257) rc = next_entry(buf, fp, sizeof(u32));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2258) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2259) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2260) len = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2261)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2262) rc = str_read(&c->u.name, GFP_KERNEL, fp, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2263) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2264) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2265)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2266) rc = context_read_and_validate(&c->context[0], p, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2267) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2268) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2269) rc = context_read_and_validate(&c->context[1], p, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2270) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2271) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2272) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2273) case OCON_PORT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2274) rc = next_entry(buf, fp, sizeof(u32)*3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2275) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2276) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2277) c->u.port.protocol = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2278) c->u.port.low_port = le32_to_cpu(buf[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2279) c->u.port.high_port = le32_to_cpu(buf[2]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2280) rc = context_read_and_validate(&c->context[0], p, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2281) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2282) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2283) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2284) case OCON_NODE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2285) rc = next_entry(nodebuf, fp, sizeof(u32) * 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2286) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2287) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2288) c->u.node.addr = nodebuf[0]; /* network order */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2289) c->u.node.mask = nodebuf[1]; /* network order */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2290) rc = context_read_and_validate(&c->context[0], p, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2291) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2292) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2293) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2294) case OCON_FSUSE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2295) rc = next_entry(buf, fp, sizeof(u32)*2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2296) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2297) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2298)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2299) rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2300) c->v.behavior = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2301) /* Determined at runtime, not in policy DB. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2302) if (c->v.behavior == SECURITY_FS_USE_MNTPOINT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2303) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2304) if (c->v.behavior > SECURITY_FS_USE_MAX)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2305) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2306)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2307) len = le32_to_cpu(buf[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2308) rc = str_read(&c->u.name, GFP_KERNEL, fp, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2309) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2310) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2311)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2312) rc = context_read_and_validate(&c->context[0], p, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2313) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2314) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2315) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2316) case OCON_NODE6: {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2317) int k;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2318)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2319) rc = next_entry(nodebuf, fp, sizeof(u32) * 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2320) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2321) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2322) for (k = 0; k < 4; k++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2323) c->u.node6.addr[k] = nodebuf[k];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2324) for (k = 0; k < 4; k++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2325) c->u.node6.mask[k] = nodebuf[k+4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2326) rc = context_read_and_validate(&c->context[0], p, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2327) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2328) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2329) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2330) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2331) case OCON_IBPKEY: {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2332) u32 pkey_lo, pkey_hi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2333)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2334) rc = next_entry(prefixbuf, fp, sizeof(u64));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2335) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2336) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2337)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2338) /* we need to have subnet_prefix in CPU order */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2339) c->u.ibpkey.subnet_prefix = be64_to_cpu(prefixbuf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2340)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2341) rc = next_entry(buf, fp, sizeof(u32) * 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2342) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2343) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2344)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2345) pkey_lo = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2346) pkey_hi = le32_to_cpu(buf[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2347)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2348) if (pkey_lo > U16_MAX || pkey_hi > U16_MAX) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2349) rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2350) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2351) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2352)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2353) c->u.ibpkey.low_pkey = pkey_lo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2354) c->u.ibpkey.high_pkey = pkey_hi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2355)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2356) rc = context_read_and_validate(&c->context[0],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2357) p,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2358) fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2359) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2360) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2361) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2362) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2363) case OCON_IBENDPORT: {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2364) u32 port;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2365)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2366) rc = next_entry(buf, fp, sizeof(u32) * 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2367) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2368) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2369) len = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2370)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2371) rc = str_read(&c->u.ibendport.dev_name, GFP_KERNEL, fp, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2372) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2373) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2374)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2375) port = le32_to_cpu(buf[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2376) if (port > U8_MAX || port == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2377) rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2378) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2379) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2380)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2381) c->u.ibendport.port = port;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2382)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2383) rc = context_read_and_validate(&c->context[0],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2384) p,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2385) fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2386) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2387) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2388) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2389) } /* end case */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2390) } /* end switch */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2391) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2392) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2393) rc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2394) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2395) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2396) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2397)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2398) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2399) * Read the configuration data from a policy database binary
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2400) * representation file into a policy database structure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2401) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2402) int policydb_read(struct policydb *p, void *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2403) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2404) struct role_allow *ra, *lra;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2405) struct role_trans_key *rtk = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2406) struct role_trans_datum *rtd = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2407) int i, j, rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2408) __le32 buf[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2409) u32 len, nprim, nel, perm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2410)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2411) char *policydb_str;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2412) struct policydb_compat_info *info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2413)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2414) policydb_init(p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2415)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2416) /* Read the magic number and string length. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2417) rc = next_entry(buf, fp, sizeof(u32) * 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2418) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2419) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2420)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2421) rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2422) if (le32_to_cpu(buf[0]) != POLICYDB_MAGIC) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2423) pr_err("SELinux: policydb magic number 0x%x does "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2424) "not match expected magic number 0x%x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2425) le32_to_cpu(buf[0]), POLICYDB_MAGIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2426) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2427) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2428)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2429) rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2430) len = le32_to_cpu(buf[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2431) if (len != strlen(POLICYDB_STRING)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2432) pr_err("SELinux: policydb string length %d does not "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2433) "match expected length %zu\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2434) len, strlen(POLICYDB_STRING));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2435) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2436) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2437)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2438) rc = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2439) policydb_str = kmalloc(len + 1, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2440) if (!policydb_str) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2441) pr_err("SELinux: unable to allocate memory for policydb "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2442) "string of length %d\n", len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2443) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2444) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2445)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2446) rc = next_entry(policydb_str, fp, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2447) if (rc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2448) pr_err("SELinux: truncated policydb string identifier\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2449) kfree(policydb_str);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2450) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2451) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2452)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2453) rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2454) policydb_str[len] = '\0';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2455) if (strcmp(policydb_str, POLICYDB_STRING)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2456) pr_err("SELinux: policydb string %s does not match "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2457) "my string %s\n", policydb_str, POLICYDB_STRING);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2458) kfree(policydb_str);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2459) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2460) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2461) /* Done with policydb_str. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2462) kfree(policydb_str);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2463) policydb_str = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2464)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2465) /* Read the version and table sizes. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2466) rc = next_entry(buf, fp, sizeof(u32)*4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2467) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2468) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2469)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2470) rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2471) p->policyvers = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2472) if (p->policyvers < POLICYDB_VERSION_MIN ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2473) p->policyvers > POLICYDB_VERSION_MAX) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2474) pr_err("SELinux: policydb version %d does not match "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2475) "my version range %d-%d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2476) le32_to_cpu(buf[0]), POLICYDB_VERSION_MIN, POLICYDB_VERSION_MAX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2477) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2478) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2479)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2480) if ((le32_to_cpu(buf[1]) & POLICYDB_CONFIG_MLS)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2481) p->mls_enabled = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2482)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2483) rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2484) if (p->policyvers < POLICYDB_VERSION_MLS) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2485) pr_err("SELinux: security policydb version %d "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2486) "(MLS) not backwards compatible\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2487) p->policyvers);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2488) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2489) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2490) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2491) p->reject_unknown = !!(le32_to_cpu(buf[1]) & REJECT_UNKNOWN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2492) p->allow_unknown = !!(le32_to_cpu(buf[1]) & ALLOW_UNKNOWN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2493)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2494) if ((le32_to_cpu(buf[1]) & POLICYDB_CONFIG_ANDROID_NETLINK_ROUTE)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2495) p->android_netlink_route = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2496) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2497)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2498) if ((le32_to_cpu(buf[1]) & POLICYDB_CONFIG_ANDROID_NETLINK_GETNEIGH)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2499) p->android_netlink_getneigh = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2500) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2501)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2502) if (p->policyvers >= POLICYDB_VERSION_POLCAP) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2503) rc = ebitmap_read(&p->policycaps, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2504) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2505) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2506) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2507)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2508) if (p->policyvers >= POLICYDB_VERSION_PERMISSIVE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2509) rc = ebitmap_read(&p->permissive_map, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2510) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2511) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2512) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2513)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2514) rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2515) info = policydb_lookup_compat(p->policyvers);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2516) if (!info) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2517) pr_err("SELinux: unable to find policy compat info "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2518) "for version %d\n", p->policyvers);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2519) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2520) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2521)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2522) rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2523) if (le32_to_cpu(buf[2]) != info->sym_num ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2524) le32_to_cpu(buf[3]) != info->ocon_num) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2525) pr_err("SELinux: policydb table sizes (%d,%d) do "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2526) "not match mine (%d,%d)\n", le32_to_cpu(buf[2]),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2527) le32_to_cpu(buf[3]),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2528) info->sym_num, info->ocon_num);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2529) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2530) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2531)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2532) for (i = 0; i < info->sym_num; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2533) rc = next_entry(buf, fp, sizeof(u32)*2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2534) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2535) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2536) nprim = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2537) nel = le32_to_cpu(buf[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2538)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2539) rc = symtab_init(&p->symtab[i], nel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2540) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2541) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2542)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2543) if (i == SYM_ROLES) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2544) rc = roles_init(p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2545) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2546) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2547) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2548)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2549) for (j = 0; j < nel; j++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2550) rc = read_f[i](p, &p->symtab[i], fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2551) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2552) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2553) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2554)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2555) p->symtab[i].nprim = nprim;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2556) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2557)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2558) rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2559) p->process_class = string_to_security_class(p, "process");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2560) if (!p->process_class) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2561) pr_err("SELinux: process class is required, not defined in policy\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2562) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2563) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2564)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2565) rc = avtab_read(&p->te_avtab, fp, p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2566) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2567) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2568)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2569) if (p->policyvers >= POLICYDB_VERSION_BOOL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2570) rc = cond_read_list(p, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2571) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2572) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2573) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2574)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2575) rc = next_entry(buf, fp, sizeof(u32));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2576) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2577) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2578) nel = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2579)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2580) rc = hashtab_init(&p->role_tr, nel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2581) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2582) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2583) for (i = 0; i < nel; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2584) rc = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2585) rtk = kmalloc(sizeof(*rtk), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2586) if (!rtk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2587) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2588)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2589) rc = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2590) rtd = kmalloc(sizeof(*rtd), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2591) if (!rtd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2592) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2593)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2594) rc = next_entry(buf, fp, sizeof(u32)*3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2595) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2596) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2597)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2598) rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2599) rtk->role = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2600) rtk->type = le32_to_cpu(buf[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2601) rtd->new_role = le32_to_cpu(buf[2]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2602) if (p->policyvers >= POLICYDB_VERSION_ROLETRANS) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2603) rc = next_entry(buf, fp, sizeof(u32));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2604) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2605) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2606) rtk->tclass = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2607) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2608) rtk->tclass = p->process_class;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2609)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2610) rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2611) if (!policydb_role_isvalid(p, rtk->role) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2612) !policydb_type_isvalid(p, rtk->type) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2613) !policydb_class_isvalid(p, rtk->tclass) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2614) !policydb_role_isvalid(p, rtd->new_role))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2615) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2616)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2617) rc = hashtab_insert(&p->role_tr, rtk, rtd, roletr_key_params);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2618) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2619) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2620)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2621) rtk = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2622) rtd = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2623) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2624)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2625) rc = next_entry(buf, fp, sizeof(u32));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2626) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2627) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2628) nel = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2629) lra = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2630) for (i = 0; i < nel; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2631) rc = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2632) ra = kzalloc(sizeof(*ra), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2633) if (!ra)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2634) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2635) if (lra)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2636) lra->next = ra;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2637) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2638) p->role_allow = ra;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2639) rc = next_entry(buf, fp, sizeof(u32)*2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2640) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2641) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2642)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2643) rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2644) ra->role = le32_to_cpu(buf[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2645) ra->new_role = le32_to_cpu(buf[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2646) if (!policydb_role_isvalid(p, ra->role) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2647) !policydb_role_isvalid(p, ra->new_role))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2648) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2649) lra = ra;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2650) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2651)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2652) rc = filename_trans_read(p, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2653) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2654) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2655)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2656) rc = policydb_index(p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2657) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2658) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2659)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2660) rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2661) perm = string_to_av_perm(p, p->process_class, "transition");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2662) if (!perm) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2663) pr_err("SELinux: process transition permission is required, not defined in policy\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2664) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2665) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2666) p->process_trans_perms = perm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2667) perm = string_to_av_perm(p, p->process_class, "dyntransition");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2668) if (!perm) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2669) pr_err("SELinux: process dyntransition permission is required, not defined in policy\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2670) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2671) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2672) p->process_trans_perms |= perm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2673)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2674) rc = ocontext_read(p, info, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2675) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2676) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2677)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2678) rc = genfs_read(p, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2679) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2680) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2681)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2682) rc = range_read(p, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2683) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2684) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2685)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2686) rc = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2687) p->type_attr_map_array = kvcalloc(p->p_types.nprim,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2688) sizeof(*p->type_attr_map_array),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2689) GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2690) if (!p->type_attr_map_array)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2691) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2692)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2693) /* just in case ebitmap_init() becomes more than just a memset(0): */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2694) for (i = 0; i < p->p_types.nprim; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2695) ebitmap_init(&p->type_attr_map_array[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2696)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2697) for (i = 0; i < p->p_types.nprim; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2698) struct ebitmap *e = &p->type_attr_map_array[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2699)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2700) if (p->policyvers >= POLICYDB_VERSION_AVTAB) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2701) rc = ebitmap_read(e, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2702) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2703) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2704) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2705) /* add the type itself as the degenerate case */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2706) rc = ebitmap_set_bit(e, i, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2707) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2708) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2709) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2710)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2711) rc = policydb_bounds_sanity_check(p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2712) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2713) goto bad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2714)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2715) rc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2716) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2717) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2718) bad:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2719) kfree(rtk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2720) kfree(rtd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2721) policydb_destroy(p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2722) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2723) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2724)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2725) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2726) * Write a MLS level structure to a policydb binary
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2727) * representation file.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2728) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2729) static int mls_write_level(struct mls_level *l, void *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2730) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2731) __le32 buf[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2732) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2733)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2734) buf[0] = cpu_to_le32(l->sens);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2735) rc = put_entry(buf, sizeof(u32), 1, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2736) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2737) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2738)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2739) rc = ebitmap_write(&l->cat, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2740) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2741) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2742)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2743) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2744) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2745)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2746) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2747) * Write a MLS range structure to a policydb binary
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2748) * representation file.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2749) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2750) static int mls_write_range_helper(struct mls_range *r, void *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2751) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2752) __le32 buf[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2753) size_t items;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2754) int rc, eq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2755)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2756) eq = mls_level_eq(&r->level[1], &r->level[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2757)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2758) if (eq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2759) items = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2760) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2761) items = 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2762) buf[0] = cpu_to_le32(items-1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2763) buf[1] = cpu_to_le32(r->level[0].sens);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2764) if (!eq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2765) buf[2] = cpu_to_le32(r->level[1].sens);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2766)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2767) BUG_ON(items > ARRAY_SIZE(buf));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2768)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2769) rc = put_entry(buf, sizeof(u32), items, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2770) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2771) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2772)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2773) rc = ebitmap_write(&r->level[0].cat, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2774) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2775) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2776) if (!eq) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2777) rc = ebitmap_write(&r->level[1].cat, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2778) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2779) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2780) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2781)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2782) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2783) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2784)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2785) static int sens_write(void *vkey, void *datum, void *ptr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2786) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2787) char *key = vkey;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2788) struct level_datum *levdatum = datum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2789) struct policy_data *pd = ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2790) void *fp = pd->fp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2791) __le32 buf[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2792) size_t len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2793) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2794)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2795) len = strlen(key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2796) buf[0] = cpu_to_le32(len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2797) buf[1] = cpu_to_le32(levdatum->isalias);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2798) rc = put_entry(buf, sizeof(u32), 2, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2799) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2800) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2801)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2802) rc = put_entry(key, 1, len, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2803) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2804) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2805)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2806) rc = mls_write_level(levdatum->level, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2807) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2808) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2809)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2810) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2811) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2812)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2813) static int cat_write(void *vkey, void *datum, void *ptr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2814) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2815) char *key = vkey;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2816) struct cat_datum *catdatum = datum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2817) struct policy_data *pd = ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2818) void *fp = pd->fp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2819) __le32 buf[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2820) size_t len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2821) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2822)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2823) len = strlen(key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2824) buf[0] = cpu_to_le32(len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2825) buf[1] = cpu_to_le32(catdatum->value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2826) buf[2] = cpu_to_le32(catdatum->isalias);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2827) rc = put_entry(buf, sizeof(u32), 3, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2828) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2829) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2830)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2831) rc = put_entry(key, 1, len, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2832) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2833) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2834)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2835) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2836) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2837)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2838) static int role_trans_write_one(void *key, void *datum, void *ptr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2839) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2840) struct role_trans_key *rtk = key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2841) struct role_trans_datum *rtd = datum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2842) struct policy_data *pd = ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2843) void *fp = pd->fp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2844) struct policydb *p = pd->p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2845) __le32 buf[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2846) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2847)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2848) buf[0] = cpu_to_le32(rtk->role);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2849) buf[1] = cpu_to_le32(rtk->type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2850) buf[2] = cpu_to_le32(rtd->new_role);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2851) rc = put_entry(buf, sizeof(u32), 3, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2852) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2853) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2854) if (p->policyvers >= POLICYDB_VERSION_ROLETRANS) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2855) buf[0] = cpu_to_le32(rtk->tclass);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2856) rc = put_entry(buf, sizeof(u32), 1, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2857) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2858) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2859) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2860) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2861) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2862)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2863) static int role_trans_write(struct policydb *p, void *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2864) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2865) struct policy_data pd = { .p = p, .fp = fp };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2866) __le32 buf[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2867) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2868)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2869) buf[0] = cpu_to_le32(p->role_tr.nel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2870) rc = put_entry(buf, sizeof(u32), 1, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2871) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2872) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2873)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2874) return hashtab_map(&p->role_tr, role_trans_write_one, &pd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2875) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2876)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2877) static int role_allow_write(struct role_allow *r, void *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2878) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2879) struct role_allow *ra;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2880) __le32 buf[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2881) size_t nel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2882) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2883)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2884) nel = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2885) for (ra = r; ra; ra = ra->next)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2886) nel++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2887) buf[0] = cpu_to_le32(nel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2888) rc = put_entry(buf, sizeof(u32), 1, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2889) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2890) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2891) for (ra = r; ra; ra = ra->next) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2892) buf[0] = cpu_to_le32(ra->role);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2893) buf[1] = cpu_to_le32(ra->new_role);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2894) rc = put_entry(buf, sizeof(u32), 2, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2895) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2896) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2897) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2898) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2899) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2900)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2901) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2902) * Write a security context structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2903) * to a policydb binary representation file.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2904) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2905) static int context_write(struct policydb *p, struct context *c,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2906) void *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2907) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2908) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2909) __le32 buf[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2910)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2911) buf[0] = cpu_to_le32(c->user);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2912) buf[1] = cpu_to_le32(c->role);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2913) buf[2] = cpu_to_le32(c->type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2914)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2915) rc = put_entry(buf, sizeof(u32), 3, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2916) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2917) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2918)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2919) rc = mls_write_range_helper(&c->range, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2920) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2921) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2922)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2923) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2924) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2925)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2926) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2927) * The following *_write functions are used to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2928) * write the symbol data to a policy database
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2929) * binary representation file.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2930) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2931)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2932) static int perm_write(void *vkey, void *datum, void *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2933) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2934) char *key = vkey;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2935) struct perm_datum *perdatum = datum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2936) __le32 buf[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2937) size_t len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2938) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2939)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2940) len = strlen(key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2941) buf[0] = cpu_to_le32(len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2942) buf[1] = cpu_to_le32(perdatum->value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2943) rc = put_entry(buf, sizeof(u32), 2, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2944) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2945) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2946)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2947) rc = put_entry(key, 1, len, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2948) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2949) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2950)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2951) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2952) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2953)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2954) static int common_write(void *vkey, void *datum, void *ptr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2955) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2956) char *key = vkey;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2957) struct common_datum *comdatum = datum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2958) struct policy_data *pd = ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2959) void *fp = pd->fp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2960) __le32 buf[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2961) size_t len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2962) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2963)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2964) len = strlen(key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2965) buf[0] = cpu_to_le32(len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2966) buf[1] = cpu_to_le32(comdatum->value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2967) buf[2] = cpu_to_le32(comdatum->permissions.nprim);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2968) buf[3] = cpu_to_le32(comdatum->permissions.table.nel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2969) rc = put_entry(buf, sizeof(u32), 4, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2970) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2971) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2972)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2973) rc = put_entry(key, 1, len, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2974) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2975) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2976)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2977) rc = hashtab_map(&comdatum->permissions.table, perm_write, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2978) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2979) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2980)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2981) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2982) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2983)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2984) static int type_set_write(struct type_set *t, void *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2985) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2986) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2987) __le32 buf[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2988)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2989) if (ebitmap_write(&t->types, fp))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2990) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2991) if (ebitmap_write(&t->negset, fp))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2992) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2993)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2994) buf[0] = cpu_to_le32(t->flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2995) rc = put_entry(buf, sizeof(u32), 1, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2996) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2997) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2998)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2999) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3000) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3001)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3002) static int write_cons_helper(struct policydb *p, struct constraint_node *node,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3003) void *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3004) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3005) struct constraint_node *c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3006) struct constraint_expr *e;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3007) __le32 buf[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3008) u32 nel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3009) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3010)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3011) for (c = node; c; c = c->next) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3012) nel = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3013) for (e = c->expr; e; e = e->next)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3014) nel++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3015) buf[0] = cpu_to_le32(c->permissions);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3016) buf[1] = cpu_to_le32(nel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3017) rc = put_entry(buf, sizeof(u32), 2, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3018) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3019) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3020) for (e = c->expr; e; e = e->next) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3021) buf[0] = cpu_to_le32(e->expr_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3022) buf[1] = cpu_to_le32(e->attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3023) buf[2] = cpu_to_le32(e->op);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3024) rc = put_entry(buf, sizeof(u32), 3, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3025) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3026) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3027)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3028) switch (e->expr_type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3029) case CEXPR_NAMES:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3030) rc = ebitmap_write(&e->names, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3031) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3032) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3033) if (p->policyvers >=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3034) POLICYDB_VERSION_CONSTRAINT_NAMES) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3035) rc = type_set_write(e->type_names, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3036) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3037) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3038) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3039) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3040) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3041) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3042) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3043) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3044) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3045)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3046) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3047) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3048)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3049) static int class_write(void *vkey, void *datum, void *ptr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3050) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3051) char *key = vkey;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3052) struct class_datum *cladatum = datum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3053) struct policy_data *pd = ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3054) void *fp = pd->fp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3055) struct policydb *p = pd->p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3056) struct constraint_node *c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3057) __le32 buf[6];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3058) u32 ncons;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3059) size_t len, len2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3060) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3061)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3062) len = strlen(key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3063) if (cladatum->comkey)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3064) len2 = strlen(cladatum->comkey);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3065) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3066) len2 = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3067)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3068) ncons = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3069) for (c = cladatum->constraints; c; c = c->next)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3070) ncons++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3071)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3072) buf[0] = cpu_to_le32(len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3073) buf[1] = cpu_to_le32(len2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3074) buf[2] = cpu_to_le32(cladatum->value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3075) buf[3] = cpu_to_le32(cladatum->permissions.nprim);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3076) buf[4] = cpu_to_le32(cladatum->permissions.table.nel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3077) buf[5] = cpu_to_le32(ncons);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3078) rc = put_entry(buf, sizeof(u32), 6, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3079) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3080) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3081)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3082) rc = put_entry(key, 1, len, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3083) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3084) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3085)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3086) if (cladatum->comkey) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3087) rc = put_entry(cladatum->comkey, 1, len2, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3088) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3089) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3090) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3091)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3092) rc = hashtab_map(&cladatum->permissions.table, perm_write, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3093) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3094) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3095)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3096) rc = write_cons_helper(p, cladatum->constraints, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3097) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3098) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3099)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3100) /* write out the validatetrans rule */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3101) ncons = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3102) for (c = cladatum->validatetrans; c; c = c->next)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3103) ncons++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3105) buf[0] = cpu_to_le32(ncons);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3106) rc = put_entry(buf, sizeof(u32), 1, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3107) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3108) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3110) rc = write_cons_helper(p, cladatum->validatetrans, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3111) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3112) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3114) if (p->policyvers >= POLICYDB_VERSION_NEW_OBJECT_DEFAULTS) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3115) buf[0] = cpu_to_le32(cladatum->default_user);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3116) buf[1] = cpu_to_le32(cladatum->default_role);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3117) buf[2] = cpu_to_le32(cladatum->default_range);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3118)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3119) rc = put_entry(buf, sizeof(uint32_t), 3, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3120) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3121) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3122) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3124) if (p->policyvers >= POLICYDB_VERSION_DEFAULT_TYPE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3125) buf[0] = cpu_to_le32(cladatum->default_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3126) rc = put_entry(buf, sizeof(uint32_t), 1, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3127) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3128) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3129) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3131) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3132) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3133)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3134) static int role_write(void *vkey, void *datum, void *ptr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3135) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3136) char *key = vkey;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3137) struct role_datum *role = datum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3138) struct policy_data *pd = ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3139) void *fp = pd->fp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3140) struct policydb *p = pd->p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3141) __le32 buf[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3142) size_t items, len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3143) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3144)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3145) len = strlen(key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3146) items = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3147) buf[items++] = cpu_to_le32(len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3148) buf[items++] = cpu_to_le32(role->value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3149) if (p->policyvers >= POLICYDB_VERSION_BOUNDARY)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3150) buf[items++] = cpu_to_le32(role->bounds);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3151)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3152) BUG_ON(items > ARRAY_SIZE(buf));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3154) rc = put_entry(buf, sizeof(u32), items, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3155) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3156) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3157)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3158) rc = put_entry(key, 1, len, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3159) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3160) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3162) rc = ebitmap_write(&role->dominates, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3163) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3164) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3165)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3166) rc = ebitmap_write(&role->types, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3167) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3168) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3169)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3170) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3171) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3172)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3173) static int type_write(void *vkey, void *datum, void *ptr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3174) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3175) char *key = vkey;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3176) struct type_datum *typdatum = datum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3177) struct policy_data *pd = ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3178) struct policydb *p = pd->p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3179) void *fp = pd->fp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3180) __le32 buf[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3181) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3182) size_t items, len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3183)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3184) len = strlen(key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3185) items = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3186) buf[items++] = cpu_to_le32(len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3187) buf[items++] = cpu_to_le32(typdatum->value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3188) if (p->policyvers >= POLICYDB_VERSION_BOUNDARY) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3189) u32 properties = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3190)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3191) if (typdatum->primary)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3192) properties |= TYPEDATUM_PROPERTY_PRIMARY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3193)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3194) if (typdatum->attribute)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3195) properties |= TYPEDATUM_PROPERTY_ATTRIBUTE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3196)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3197) buf[items++] = cpu_to_le32(properties);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3198) buf[items++] = cpu_to_le32(typdatum->bounds);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3199) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3200) buf[items++] = cpu_to_le32(typdatum->primary);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3201) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3202) BUG_ON(items > ARRAY_SIZE(buf));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3203) rc = put_entry(buf, sizeof(u32), items, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3204) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3205) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3206)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3207) rc = put_entry(key, 1, len, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3208) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3209) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3210)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3211) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3212) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3213)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3214) static int user_write(void *vkey, void *datum, void *ptr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3215) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3216) char *key = vkey;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3217) struct user_datum *usrdatum = datum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3218) struct policy_data *pd = ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3219) struct policydb *p = pd->p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3220) void *fp = pd->fp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3221) __le32 buf[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3222) size_t items, len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3223) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3224)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3225) len = strlen(key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3226) items = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3227) buf[items++] = cpu_to_le32(len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3228) buf[items++] = cpu_to_le32(usrdatum->value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3229) if (p->policyvers >= POLICYDB_VERSION_BOUNDARY)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3230) buf[items++] = cpu_to_le32(usrdatum->bounds);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3231) BUG_ON(items > ARRAY_SIZE(buf));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3232) rc = put_entry(buf, sizeof(u32), items, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3233) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3234) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3235)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3236) rc = put_entry(key, 1, len, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3237) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3238) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3239)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3240) rc = ebitmap_write(&usrdatum->roles, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3241) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3242) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3243)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3244) rc = mls_write_range_helper(&usrdatum->range, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3245) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3246) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3247)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3248) rc = mls_write_level(&usrdatum->dfltlevel, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3249) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3250) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3251)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3252) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3253) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3254)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3255) static int (*write_f[SYM_NUM]) (void *key, void *datum,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3256) void *datap) =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3257) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3258) common_write,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3259) class_write,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3260) role_write,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3261) type_write,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3262) user_write,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3263) cond_write_bool,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3264) sens_write,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3265) cat_write,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3266) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3267)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3268) static int ocontext_write(struct policydb *p, struct policydb_compat_info *info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3269) void *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3270) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3271) unsigned int i, j, rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3272) size_t nel, len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3273) __be64 prefixbuf[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3274) __le32 buf[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3275) u32 nodebuf[8];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3276) struct ocontext *c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3277) for (i = 0; i < info->ocon_num; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3278) nel = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3279) for (c = p->ocontexts[i]; c; c = c->next)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3280) nel++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3281) buf[0] = cpu_to_le32(nel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3282) rc = put_entry(buf, sizeof(u32), 1, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3283) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3284) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3285) for (c = p->ocontexts[i]; c; c = c->next) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3286) switch (i) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3287) case OCON_ISID:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3288) buf[0] = cpu_to_le32(c->sid[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3289) rc = put_entry(buf, sizeof(u32), 1, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3290) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3291) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3292) rc = context_write(p, &c->context[0], fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3293) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3294) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3295) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3296) case OCON_FS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3297) case OCON_NETIF:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3298) len = strlen(c->u.name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3299) buf[0] = cpu_to_le32(len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3300) rc = put_entry(buf, sizeof(u32), 1, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3301) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3302) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3303) rc = put_entry(c->u.name, 1, len, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3304) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3305) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3306) rc = context_write(p, &c->context[0], fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3307) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3308) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3309) rc = context_write(p, &c->context[1], fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3310) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3311) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3312) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3313) case OCON_PORT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3314) buf[0] = cpu_to_le32(c->u.port.protocol);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3315) buf[1] = cpu_to_le32(c->u.port.low_port);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3316) buf[2] = cpu_to_le32(c->u.port.high_port);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3317) rc = put_entry(buf, sizeof(u32), 3, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3318) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3319) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3320) rc = context_write(p, &c->context[0], fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3321) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3322) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3323) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3324) case OCON_NODE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3325) nodebuf[0] = c->u.node.addr; /* network order */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3326) nodebuf[1] = c->u.node.mask; /* network order */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3327) rc = put_entry(nodebuf, sizeof(u32), 2, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3328) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3329) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3330) rc = context_write(p, &c->context[0], fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3331) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3332) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3333) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3334) case OCON_FSUSE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3335) buf[0] = cpu_to_le32(c->v.behavior);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3336) len = strlen(c->u.name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3337) buf[1] = cpu_to_le32(len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3338) rc = put_entry(buf, sizeof(u32), 2, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3339) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3340) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3341) rc = put_entry(c->u.name, 1, len, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3342) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3343) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3344) rc = context_write(p, &c->context[0], fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3345) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3346) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3347) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3348) case OCON_NODE6:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3349) for (j = 0; j < 4; j++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3350) nodebuf[j] = c->u.node6.addr[j]; /* network order */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3351) for (j = 0; j < 4; j++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3352) nodebuf[j + 4] = c->u.node6.mask[j]; /* network order */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3353) rc = put_entry(nodebuf, sizeof(u32), 8, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3354) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3355) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3356) rc = context_write(p, &c->context[0], fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3357) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3358) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3359) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3360) case OCON_IBPKEY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3361) /* subnet_prefix is in CPU order */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3362) prefixbuf[0] = cpu_to_be64(c->u.ibpkey.subnet_prefix);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3363)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3364) rc = put_entry(prefixbuf, sizeof(u64), 1, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3365) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3366) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3367)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3368) buf[0] = cpu_to_le32(c->u.ibpkey.low_pkey);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3369) buf[1] = cpu_to_le32(c->u.ibpkey.high_pkey);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3370)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3371) rc = put_entry(buf, sizeof(u32), 2, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3372) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3373) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3374) rc = context_write(p, &c->context[0], fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3375) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3376) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3377) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3378) case OCON_IBENDPORT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3379) len = strlen(c->u.ibendport.dev_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3380) buf[0] = cpu_to_le32(len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3381) buf[1] = cpu_to_le32(c->u.ibendport.port);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3382) rc = put_entry(buf, sizeof(u32), 2, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3383) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3384) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3385) rc = put_entry(c->u.ibendport.dev_name, 1, len, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3386) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3387) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3388) rc = context_write(p, &c->context[0], fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3389) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3390) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3391) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3392) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3393) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3394) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3395) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3396) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3397)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3398) static int genfs_write(struct policydb *p, void *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3399) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3400) struct genfs *genfs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3401) struct ocontext *c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3402) size_t len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3403) __le32 buf[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3404) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3405)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3406) len = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3407) for (genfs = p->genfs; genfs; genfs = genfs->next)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3408) len++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3409) buf[0] = cpu_to_le32(len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3410) rc = put_entry(buf, sizeof(u32), 1, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3411) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3412) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3413) for (genfs = p->genfs; genfs; genfs = genfs->next) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3414) len = strlen(genfs->fstype);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3415) buf[0] = cpu_to_le32(len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3416) rc = put_entry(buf, sizeof(u32), 1, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3417) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3418) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3419) rc = put_entry(genfs->fstype, 1, len, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3420) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3421) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3422) len = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3423) for (c = genfs->head; c; c = c->next)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3424) len++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3425) buf[0] = cpu_to_le32(len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3426) rc = put_entry(buf, sizeof(u32), 1, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3427) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3428) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3429) for (c = genfs->head; c; c = c->next) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3430) len = strlen(c->u.name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3431) buf[0] = cpu_to_le32(len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3432) rc = put_entry(buf, sizeof(u32), 1, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3433) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3434) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3435) rc = put_entry(c->u.name, 1, len, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3436) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3437) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3438) buf[0] = cpu_to_le32(c->v.sclass);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3439) rc = put_entry(buf, sizeof(u32), 1, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3440) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3441) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3442) rc = context_write(p, &c->context[0], fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3443) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3444) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3445) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3446) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3447) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3448) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3449)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3450) static int range_write_helper(void *key, void *data, void *ptr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3451) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3452) __le32 buf[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3453) struct range_trans *rt = key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3454) struct mls_range *r = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3455) struct policy_data *pd = ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3456) void *fp = pd->fp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3457) struct policydb *p = pd->p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3458) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3459)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3460) buf[0] = cpu_to_le32(rt->source_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3461) buf[1] = cpu_to_le32(rt->target_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3462) rc = put_entry(buf, sizeof(u32), 2, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3463) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3464) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3465) if (p->policyvers >= POLICYDB_VERSION_RANGETRANS) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3466) buf[0] = cpu_to_le32(rt->target_class);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3467) rc = put_entry(buf, sizeof(u32), 1, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3468) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3469) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3470) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3471) rc = mls_write_range_helper(r, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3472) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3473) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3474)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3475) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3476) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3477)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3478) static int range_write(struct policydb *p, void *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3479) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3480) __le32 buf[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3481) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3482) struct policy_data pd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3483)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3484) pd.p = p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3485) pd.fp = fp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3486)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3487) buf[0] = cpu_to_le32(p->range_tr.nel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3488) rc = put_entry(buf, sizeof(u32), 1, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3489) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3490) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3491)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3492) /* actually write all of the entries */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3493) rc = hashtab_map(&p->range_tr, range_write_helper, &pd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3494) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3495) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3496)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3497) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3498) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3499)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3500) static int filename_write_helper_compat(void *key, void *data, void *ptr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3501) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3502) struct filename_trans_key *ft = key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3503) struct filename_trans_datum *datum = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3504) struct ebitmap_node *node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3505) void *fp = ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3506) __le32 buf[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3507) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3508) u32 bit, len = strlen(ft->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3509)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3510) do {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3511) ebitmap_for_each_positive_bit(&datum->stypes, node, bit) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3512) buf[0] = cpu_to_le32(len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3513) rc = put_entry(buf, sizeof(u32), 1, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3514) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3515) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3516)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3517) rc = put_entry(ft->name, sizeof(char), len, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3518) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3519) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3520)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3521) buf[0] = cpu_to_le32(bit + 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3522) buf[1] = cpu_to_le32(ft->ttype);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3523) buf[2] = cpu_to_le32(ft->tclass);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3524) buf[3] = cpu_to_le32(datum->otype);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3525)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3526) rc = put_entry(buf, sizeof(u32), 4, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3527) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3528) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3529) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3530)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3531) datum = datum->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3532) } while (unlikely(datum));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3533)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3534) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3535) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3536)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3537) static int filename_write_helper(void *key, void *data, void *ptr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3538) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3539) struct filename_trans_key *ft = key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3540) struct filename_trans_datum *datum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3541) void *fp = ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3542) __le32 buf[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3543) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3544) u32 ndatum, len = strlen(ft->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3545)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3546) buf[0] = cpu_to_le32(len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3547) rc = put_entry(buf, sizeof(u32), 1, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3548) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3549) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3550)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3551) rc = put_entry(ft->name, sizeof(char), len, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3552) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3553) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3554)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3555) ndatum = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3556) datum = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3557) do {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3558) ndatum++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3559) datum = datum->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3560) } while (unlikely(datum));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3561)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3562) buf[0] = cpu_to_le32(ft->ttype);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3563) buf[1] = cpu_to_le32(ft->tclass);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3564) buf[2] = cpu_to_le32(ndatum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3565) rc = put_entry(buf, sizeof(u32), 3, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3566) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3567) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3568)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3569) datum = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3570) do {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3571) rc = ebitmap_write(&datum->stypes, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3572) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3573) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3574)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3575) buf[0] = cpu_to_le32(datum->otype);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3576) rc = put_entry(buf, sizeof(u32), 1, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3577) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3578) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3579)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3580) datum = datum->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3581) } while (unlikely(datum));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3582)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3583) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3584) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3585)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3586) static int filename_trans_write(struct policydb *p, void *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3587) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3588) __le32 buf[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3589) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3590)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3591) if (p->policyvers < POLICYDB_VERSION_FILENAME_TRANS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3592) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3593)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3594) if (p->policyvers < POLICYDB_VERSION_COMP_FTRANS) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3595) buf[0] = cpu_to_le32(p->compat_filename_trans_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3596) rc = put_entry(buf, sizeof(u32), 1, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3597) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3598) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3599)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3600) rc = hashtab_map(&p->filename_trans,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3601) filename_write_helper_compat, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3602) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3603) buf[0] = cpu_to_le32(p->filename_trans.nel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3604) rc = put_entry(buf, sizeof(u32), 1, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3605) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3606) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3607)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3608) rc = hashtab_map(&p->filename_trans, filename_write_helper, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3609) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3610) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3611) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3612)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3613) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3614) * Write the configuration data in a policy database
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3615) * structure to a policy database binary representation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3616) * file.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3617) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3618) int policydb_write(struct policydb *p, void *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3619) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3620) unsigned int i, num_syms;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3621) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3622) __le32 buf[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3623) u32 config;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3624) size_t len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3625) struct policydb_compat_info *info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3626)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3627) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3628) * refuse to write policy older than compressed avtab
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3629) * to simplify the writer. There are other tests dropped
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3630) * since we assume this throughout the writer code. Be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3631) * careful if you ever try to remove this restriction
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3632) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3633) if (p->policyvers < POLICYDB_VERSION_AVTAB) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3634) pr_err("SELinux: refusing to write policy version %d."
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3635) " Because it is less than version %d\n", p->policyvers,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3636) POLICYDB_VERSION_AVTAB);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3637) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3638) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3639)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3640) config = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3641) if (p->mls_enabled)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3642) config |= POLICYDB_CONFIG_MLS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3643)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3644) if (p->reject_unknown)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3645) config |= REJECT_UNKNOWN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3646) if (p->allow_unknown)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3647) config |= ALLOW_UNKNOWN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3648)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3649) /* Write the magic number and string identifiers. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3650) buf[0] = cpu_to_le32(POLICYDB_MAGIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3651) len = strlen(POLICYDB_STRING);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3652) buf[1] = cpu_to_le32(len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3653) rc = put_entry(buf, sizeof(u32), 2, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3654) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3655) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3656) rc = put_entry(POLICYDB_STRING, 1, len, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3657) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3658) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3659)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3660) /* Write the version, config, and table sizes. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3661) info = policydb_lookup_compat(p->policyvers);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3662) if (!info) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3663) pr_err("SELinux: compatibility lookup failed for policy "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3664) "version %d", p->policyvers);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3665) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3666) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3667)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3668) buf[0] = cpu_to_le32(p->policyvers);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3669) buf[1] = cpu_to_le32(config);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3670) buf[2] = cpu_to_le32(info->sym_num);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3671) buf[3] = cpu_to_le32(info->ocon_num);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3672)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3673) rc = put_entry(buf, sizeof(u32), 4, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3674) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3675) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3676)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3677) if (p->policyvers >= POLICYDB_VERSION_POLCAP) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3678) rc = ebitmap_write(&p->policycaps, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3679) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3680) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3681) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3682)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3683) if (p->policyvers >= POLICYDB_VERSION_PERMISSIVE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3684) rc = ebitmap_write(&p->permissive_map, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3685) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3686) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3687) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3688)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3689) num_syms = info->sym_num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3690) for (i = 0; i < num_syms; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3691) struct policy_data pd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3692)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3693) pd.fp = fp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3694) pd.p = p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3695)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3696) buf[0] = cpu_to_le32(p->symtab[i].nprim);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3697) buf[1] = cpu_to_le32(p->symtab[i].table.nel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3698)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3699) rc = put_entry(buf, sizeof(u32), 2, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3700) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3701) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3702) rc = hashtab_map(&p->symtab[i].table, write_f[i], &pd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3703) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3704) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3705) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3706)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3707) rc = avtab_write(p, &p->te_avtab, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3708) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3709) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3710)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3711) rc = cond_write_list(p, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3712) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3713) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3714)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3715) rc = role_trans_write(p, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3716) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3717) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3718)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3719) rc = role_allow_write(p->role_allow, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3720) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3721) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3722)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3723) rc = filename_trans_write(p, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3724) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3725) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3726)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3727) rc = ocontext_write(p, info, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3728) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3729) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3730)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3731) rc = genfs_write(p, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3732) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3733) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3734)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3735) rc = range_write(p, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3736) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3737) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3738)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3739) for (i = 0; i < p->p_types.nprim; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3740) struct ebitmap *e = &p->type_attr_map_array[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3741)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3742) rc = ebitmap_write(e, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3743) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3744) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3745) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3746)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3747) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3748) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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