^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) * NSA Security-Enhanced Linux (SELinux) security module
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * This file contains the SELinux security data structures for kernel objects.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Author(s): Stephen Smalley, <sds@tycho.nsa.gov>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Chris Vance, <cvance@nai.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * Wayne Salamon, <wsalamon@nai.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * James Morris <jmorris@redhat.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) * Copyright (C) 2001,2002 Networks Associates Technology, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * Copyright (C) 2003 Red Hat, Inc., James Morris <jmorris@redhat.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * Copyright (C) 2016 Mellanox Technologies
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #ifndef _SELINUX_OBJSEC_H_
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #define _SELINUX_OBJSEC_H_
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/list.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/sched.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/fs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/binfmts.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <linux/in.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <linux/spinlock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <linux/lsm_hooks.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include <linux/msg.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #include <net/net_namespace.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #include "flask.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #include "avc.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) struct task_security_struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) u32 osid; /* SID prior to last execve */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) u32 sid; /* current SID */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) u32 exec_sid; /* exec SID */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) u32 create_sid; /* fscreate SID */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) u32 keycreate_sid; /* keycreate SID */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) u32 sockcreate_sid; /* fscreate SID */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) } __randomize_layout;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) enum label_initialized {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) LABEL_INVALID, /* invalid or not initialized */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) LABEL_INITIALIZED, /* initialized */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) LABEL_PENDING
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) struct inode_security_struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) struct inode *inode; /* back pointer to inode object */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) struct list_head list; /* list of inode_security_struct */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) u32 task_sid; /* SID of creating task */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) u32 sid; /* SID of this object */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) u16 sclass; /* security class of this object */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) unsigned char initialized; /* initialization flag */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) spinlock_t lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) struct file_security_struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) u32 sid; /* SID of open file description */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) u32 fown_sid; /* SID of file owner (for SIGIO) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) u32 isid; /* SID of inode at the time of file open */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) u32 pseqno; /* Policy seqno at the time of file open */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) struct superblock_security_struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) struct super_block *sb; /* back pointer to sb object */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) u32 sid; /* SID of file system superblock */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) u32 def_sid; /* default SID for labeling */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) u32 mntpoint_sid; /* SECURITY_FS_USE_MNTPOINT context for files */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) unsigned short behavior; /* labeling behavior */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) unsigned short flags; /* which mount options were specified */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) struct mutex lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) struct list_head isec_head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) spinlock_t isec_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) struct msg_security_struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) u32 sid; /* SID of message */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) struct ipc_security_struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) u16 sclass; /* security class of this object */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) u32 sid; /* SID of IPC resource */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) struct netif_security_struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) struct net *ns; /* network namespace */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) int ifindex; /* device index */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) u32 sid; /* SID for this interface */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) struct netnode_security_struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) union {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) __be32 ipv4; /* IPv4 node address */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) struct in6_addr ipv6; /* IPv6 node address */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) } addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) u32 sid; /* SID for this node */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) u16 family; /* address family */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) struct netport_security_struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) u32 sid; /* SID for this node */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) u16 port; /* port number */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) u8 protocol; /* transport protocol */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) struct sk_security_struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) #ifdef CONFIG_NETLABEL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) enum { /* NetLabel state */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) NLBL_UNSET = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) NLBL_REQUIRE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) NLBL_LABELED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) NLBL_REQSKB,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) NLBL_CONNLABELED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) } nlbl_state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) struct netlbl_lsm_secattr *nlbl_secattr; /* NetLabel sec attributes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) u32 sid; /* SID of this object */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) u32 peer_sid; /* SID of peer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) u16 sclass; /* sock security class */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) enum { /* SCTP association state */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) SCTP_ASSOC_UNSET = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) SCTP_ASSOC_SET,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) } sctp_assoc_state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) struct tun_security_struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) u32 sid; /* SID for the tun device sockets */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) struct key_security_struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) u32 sid; /* SID of key */
^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) struct ib_security_struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) u32 sid; /* SID of the queue pair or MAD agent */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) struct pkey_security_struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) u64 subnet_prefix; /* Port subnet prefix */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) u16 pkey; /* PKey number */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) u32 sid; /* SID of pkey */
^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) struct bpf_security_struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) u32 sid; /* SID of bpf obj creator */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) struct perf_event_security_struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) u32 sid; /* SID of perf_event obj creator */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) extern struct lsm_blob_sizes selinux_blob_sizes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) static inline struct task_security_struct *selinux_cred(const struct cred *cred)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) return cred->security + selinux_blob_sizes.lbs_cred;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) static inline struct file_security_struct *selinux_file(const struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) return file->f_security + selinux_blob_sizes.lbs_file;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) static inline struct inode_security_struct *selinux_inode(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) const struct inode *inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) if (unlikely(!inode->i_security))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) return inode->i_security + selinux_blob_sizes.lbs_inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) static inline struct msg_security_struct *selinux_msg_msg(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) const struct msg_msg *msg_msg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) return msg_msg->security + selinux_blob_sizes.lbs_msg_msg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) static inline struct ipc_security_struct *selinux_ipc(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) const struct kern_ipc_perm *ipc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) return ipc->security + selinux_blob_sizes.lbs_ipc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) * get the subjective security ID of the current task
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) static inline u32 current_sid(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) const struct task_security_struct *tsec = selinux_cred(current_cred());
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) return tsec->sid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) #endif /* _SELINUX_OBJSEC_H_ */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
3 Commits
0 Branches
0 Tags