Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * Create default crypto algorithm instances.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * Copyright (c) 2006 Herbert Xu <herbert@gondor.apana.org.au>
^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) #include <crypto/internal/aead.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #include <linux/completion.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #include <linux/ctype.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include <linux/err.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <linux/kthread.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include <linux/notifier.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include <linux/rtnetlink.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #include <linux/sched/signal.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #include <linux/string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) #include "internal.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) struct cryptomgr_param {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 	struct rtattr *tb[CRYPTO_MAX_ATTRS + 2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 	struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 		struct rtattr attr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 		struct crypto_attr_type data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 	} type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 	union {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 		struct rtattr attr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 		struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 			struct rtattr attr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 			struct crypto_attr_alg data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 		} alg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 		struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 			struct rtattr attr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 			struct crypto_attr_u32 data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 		} nu32;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 	} attrs[CRYPTO_MAX_ATTRS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 	char template[CRYPTO_MAX_ALG_NAME];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 	struct crypto_larval *larval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 	u32 otype;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 	u32 omask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) struct crypto_test_param {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 	char driver[CRYPTO_MAX_ALG_NAME];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 	char alg[CRYPTO_MAX_ALG_NAME];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	u32 type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) static int cryptomgr_probe(void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	struct cryptomgr_param *param = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 	struct crypto_template *tmpl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 	tmpl = crypto_lookup_template(param->template);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	if (!tmpl)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 		goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 	do {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 		err = tmpl->create(tmpl, param->tb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 	} while (err == -EAGAIN && !signal_pending(current));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 	crypto_tmpl_put(tmpl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 	complete_all(&param->larval->completion);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 	crypto_alg_put(&param->larval->alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 	kfree(param);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 	module_put_and_exit(0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) static int cryptomgr_schedule_probe(struct crypto_larval *larval)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 	struct task_struct *thread;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 	struct cryptomgr_param *param;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 	const char *name = larval->alg.cra_name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	const char *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 	unsigned int len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 	if (!try_module_get(THIS_MODULE))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 		goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	param = kzalloc(sizeof(*param), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	if (!param)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 		goto err_put_module;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 	for (p = name; isalnum(*p) || *p == '-' || *p == '_'; p++)
^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) 	len = p - name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	if (!len || *p != '(')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 		goto err_free_param;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	memcpy(param->template, name, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 	i = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	for (;;) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 		int notnum = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 		name = ++p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 		for (; isalnum(*p) || *p == '-' || *p == '_'; p++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 			notnum |= !isdigit(*p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 		if (*p == '(') {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 			int recursion = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 			for (;;) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 				if (!*++p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 					goto err_free_param;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 				if (*p == '(')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 					recursion++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 				else if (*p == ')' && !recursion--)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 					break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 			notnum = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 			p++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 		len = p - name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 		if (!len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 			goto err_free_param;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 		if (notnum) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 			param->attrs[i].alg.attr.rta_len =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 				sizeof(param->attrs[i].alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 			param->attrs[i].alg.attr.rta_type = CRYPTOA_ALG;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 			memcpy(param->attrs[i].alg.data.name, name, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 		} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 			param->attrs[i].nu32.attr.rta_len =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 				sizeof(param->attrs[i].nu32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 			param->attrs[i].nu32.attr.rta_type = CRYPTOA_U32;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 			param->attrs[i].nu32.data.num =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 				simple_strtol(name, NULL, 0);
^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) 		param->tb[i + 1] = &param->attrs[i].attr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 		i++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 		if (i >= CRYPTO_MAX_ATTRS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 			goto err_free_param;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 		if (*p == ')')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 		if (*p != ',')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 			goto err_free_param;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	if (!i)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 		goto err_free_param;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	param->tb[i + 1] = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 	param->type.attr.rta_len = sizeof(param->type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	param->type.attr.rta_type = CRYPTOA_TYPE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 	param->type.data.type = larval->alg.cra_flags & ~CRYPTO_ALG_TESTED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	param->type.data.mask = larval->mask & ~CRYPTO_ALG_TESTED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	param->tb[0] = &param->type.attr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	param->otype = larval->alg.cra_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	param->omask = larval->mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	crypto_alg_get(&larval->alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	param->larval = larval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 	thread = kthread_run(cryptomgr_probe, param, "cryptomgr_probe");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	if (IS_ERR(thread))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 		goto err_put_larval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	return NOTIFY_STOP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) err_put_larval:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 	crypto_alg_put(&larval->alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) err_free_param:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	kfree(param);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) err_put_module:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 	module_put(THIS_MODULE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) err:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 	return NOTIFY_OK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) static int cryptomgr_test(void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 	struct crypto_test_param *param = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	u32 type = param->type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 	int err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) #ifdef CONFIG_CRYPTO_MANAGER_DISABLE_TESTS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 	goto skiptest;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 	if (type & CRYPTO_ALG_TESTED)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 		goto skiptest;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 	err = alg_test(param->driver, param->alg, type, CRYPTO_ALG_TESTED);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) skiptest:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 	crypto_alg_tested(param->driver, err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 	kfree(param);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 	module_put_and_exit(0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) static int cryptomgr_schedule_test(struct crypto_alg *alg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	struct task_struct *thread;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 	struct crypto_test_param *param;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	u32 type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 	if (!try_module_get(THIS_MODULE))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 		goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	param = kzalloc(sizeof(*param), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 	if (!param)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 		goto err_put_module;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 	memcpy(param->driver, alg->cra_driver_name, sizeof(param->driver));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 	memcpy(param->alg, alg->cra_name, sizeof(param->alg));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 	type = alg->cra_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 	/* Do not test internal algorithms. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 	if (type & CRYPTO_ALG_INTERNAL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 		type |= CRYPTO_ALG_TESTED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 	param->type = type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 	thread = kthread_run(cryptomgr_test, param, "cryptomgr_test");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 	if (IS_ERR(thread))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 		goto err_free_param;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 	return NOTIFY_STOP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) err_free_param:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 	kfree(param);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) err_put_module:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 	module_put(THIS_MODULE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) err:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 	return NOTIFY_OK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) static int cryptomgr_notify(struct notifier_block *this, unsigned long msg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 			    void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 	switch (msg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 	case CRYPTO_MSG_ALG_REQUEST:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 		return cryptomgr_schedule_probe(data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 	case CRYPTO_MSG_ALG_REGISTER:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 		return cryptomgr_schedule_test(data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 	case CRYPTO_MSG_ALG_LOADED:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 	return NOTIFY_DONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) static struct notifier_block cryptomgr_notifier = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 	.notifier_call = cryptomgr_notify,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) static int __init cryptomgr_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 	return crypto_register_notifier(&cryptomgr_notifier);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) static void __exit cryptomgr_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 	int err = crypto_unregister_notifier(&cryptomgr_notifier);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 	BUG_ON(err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283)  * This is arch_initcall() so that the crypto self-tests are run on algorithms
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284)  * registered early by subsys_initcall().  subsys_initcall() is needed for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285)  * generic implementations so that they're available for comparison tests when
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286)  * other implementations are registered later by module_init().
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) arch_initcall(cryptomgr_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) module_exit(cryptomgr_exit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) MODULE_DESCRIPTION("Crypto Algorithm Manager");