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-rw-r--r--fs/attr.c2
-rw-r--r--include/linux/ima.h55
-rw-r--r--security/integrity/ima/ima.h5
-rw-r--r--security/integrity/ima/ima_appraise.c38
-rw-r--r--security/integrity/ima/ima_main.c1
-rw-r--r--security/security.c13
6 files changed, 35 insertions, 79 deletions
diff --git a/fs/attr.c b/fs/attr.c
index 990e1b3a3c91..7e97313e7f70 100644
--- a/fs/attr.c
+++ b/fs/attr.c
@@ -17,7 +17,6 @@
#include <linux/filelock.h>
#include <linux/security.h>
#include <linux/evm.h>
-#include <linux/ima.h>
#include "internal.h"
@@ -503,7 +502,6 @@ int notify_change(struct mnt_idmap *idmap, struct dentry *dentry,
if (!error) {
fsnotify_change(dentry, ia_valid);
security_inode_post_setattr(idmap, dentry, ia_valid);
- ima_inode_post_setattr(idmap, dentry, ia_valid);
evm_inode_post_setattr(idmap, dentry, ia_valid);
}
diff --git a/include/linux/ima.h b/include/linux/ima.h
index 23ae24b60ecf..0bae61a15b60 100644
--- a/include/linux/ima.h
+++ b/include/linux/ima.h
@@ -92,66 +92,11 @@ static inline void ima_add_kexec_buffer(struct kimage *image)
#ifdef CONFIG_IMA_APPRAISE
extern bool is_ima_appraise_enabled(void);
-extern void ima_inode_post_setattr(struct mnt_idmap *idmap,
- struct dentry *dentry, int ia_valid);
-extern int ima_inode_setxattr(struct mnt_idmap *idmap, struct dentry *dentry,
- const char *xattr_name, const void *xattr_value,
- size_t xattr_value_len, int flags);
-extern int ima_inode_set_acl(struct mnt_idmap *idmap,
- struct dentry *dentry, const char *acl_name,
- struct posix_acl *kacl);
-static inline int ima_inode_remove_acl(struct mnt_idmap *idmap,
- struct dentry *dentry,
- const char *acl_name)
-{
- return ima_inode_set_acl(idmap, dentry, acl_name, NULL);
-}
-
-extern int ima_inode_removexattr(struct mnt_idmap *idmap, struct dentry *dentry,
- const char *xattr_name);
#else
static inline bool is_ima_appraise_enabled(void)
{
return 0;
}
-
-static inline void ima_inode_post_setattr(struct mnt_idmap *idmap,
- struct dentry *dentry, int ia_valid)
-{
- return;
-}
-
-static inline int ima_inode_setxattr(struct mnt_idmap *idmap,
- struct dentry *dentry,
- const char *xattr_name,
- const void *xattr_value,
- size_t xattr_value_len,
- int flags)
-{
- return 0;
-}
-
-static inline int ima_inode_set_acl(struct mnt_idmap *idmap,
- struct dentry *dentry, const char *acl_name,
- struct posix_acl *kacl)
-{
-
- return 0;
-}
-
-static inline int ima_inode_removexattr(struct mnt_idmap *idmap,
- struct dentry *dentry,
- const char *xattr_name)
-{
- return 0;
-}
-
-static inline int ima_inode_remove_acl(struct mnt_idmap *idmap,
- struct dentry *dentry,
- const char *acl_name)
-{
- return 0;
-}
#endif /* CONFIG_IMA_APPRAISE */
#if defined(CONFIG_IMA_APPRAISE) && defined(CONFIG_INTEGRITY_TRUSTED_KEYRING)
diff --git a/security/integrity/ima/ima.h b/security/integrity/ima/ima.h
index c0412100023e..a27fc10f84f7 100644
--- a/security/integrity/ima/ima.h
+++ b/security/integrity/ima/ima.h
@@ -334,6 +334,7 @@ enum hash_algo ima_get_hash_algo(const struct evm_ima_xattr_data *xattr_value,
int xattr_len);
int ima_read_xattr(struct dentry *dentry,
struct evm_ima_xattr_data **xattr_value, int xattr_len);
+void __init init_ima_appraise_lsm(const struct lsm_id *lsmid);
#else
static inline int ima_check_blacklist(struct integrity_iint_cache *iint,
@@ -385,6 +386,10 @@ static inline int ima_read_xattr(struct dentry *dentry,
return 0;
}
+static inline void __init init_ima_appraise_lsm(const struct lsm_id *lsmid)
+{
+}
+
#endif /* CONFIG_IMA_APPRAISE */
#ifdef CONFIG_IMA_APPRAISE_MODSIG
diff --git a/security/integrity/ima/ima_appraise.c b/security/integrity/ima/ima_appraise.c
index 36abc84ba299..076451109637 100644
--- a/security/integrity/ima/ima_appraise.c
+++ b/security/integrity/ima/ima_appraise.c
@@ -636,8 +636,8 @@ void ima_update_xattr(struct integrity_iint_cache *iint, struct file *file)
* This function is called from notify_change(), which expects the caller
* to lock the inode's i_mutex.
*/
-void ima_inode_post_setattr(struct mnt_idmap *idmap,
- struct dentry *dentry, int ia_valid)
+static void ima_inode_post_setattr(struct mnt_idmap *idmap,
+ struct dentry *dentry, int ia_valid)
{
struct inode *inode = d_backing_inode(dentry);
struct integrity_iint_cache *iint;
@@ -750,9 +750,9 @@ static int validate_hash_algo(struct dentry *dentry,
return -EACCES;
}
-int ima_inode_setxattr(struct mnt_idmap *idmap, struct dentry *dentry,
- const char *xattr_name, const void *xattr_value,
- size_t xattr_value_len, int flags)
+static int ima_inode_setxattr(struct mnt_idmap *idmap, struct dentry *dentry,
+ const char *xattr_name, const void *xattr_value,
+ size_t xattr_value_len, int flags)
{
const struct evm_ima_xattr_data *xvalue = xattr_value;
int digsig = 0;
@@ -781,8 +781,8 @@ int ima_inode_setxattr(struct mnt_idmap *idmap, struct dentry *dentry,
return result;
}
-int ima_inode_set_acl(struct mnt_idmap *idmap, struct dentry *dentry,
- const char *acl_name, struct posix_acl *kacl)
+static int ima_inode_set_acl(struct mnt_idmap *idmap, struct dentry *dentry,
+ const char *acl_name, struct posix_acl *kacl)
{
if (evm_revalidate_status(acl_name))
ima_reset_appraise_flags(d_backing_inode(dentry), 0);
@@ -790,8 +790,8 @@ int ima_inode_set_acl(struct mnt_idmap *idmap, struct dentry *dentry,
return 0;
}
-int ima_inode_removexattr(struct mnt_idmap *idmap, struct dentry *dentry,
- const char *xattr_name)
+static int ima_inode_removexattr(struct mnt_idmap *idmap, struct dentry *dentry,
+ const char *xattr_name)
{
int result;
@@ -803,3 +803,23 @@ int ima_inode_removexattr(struct mnt_idmap *idmap, struct dentry *dentry,
}
return result;
}
+
+static int ima_inode_remove_acl(struct mnt_idmap *idmap, struct dentry *dentry,
+ const char *acl_name)
+{
+ return ima_inode_set_acl(idmap, dentry, acl_name, NULL);
+}
+
+static struct security_hook_list ima_appraise_hooks[] __ro_after_init = {
+ LSM_HOOK_INIT(inode_post_setattr, ima_inode_post_setattr),
+ LSM_HOOK_INIT(inode_setxattr, ima_inode_setxattr),
+ LSM_HOOK_INIT(inode_set_acl, ima_inode_set_acl),
+ LSM_HOOK_INIT(inode_removexattr, ima_inode_removexattr),
+ LSM_HOOK_INIT(inode_remove_acl, ima_inode_remove_acl),
+};
+
+void __init init_ima_appraise_lsm(const struct lsm_id *lsmid)
+{
+ security_add_hooks(ima_appraise_hooks, ARRAY_SIZE(ima_appraise_hooks),
+ lsmid);
+}
diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
index d0826e864c29..b8b8891a9379 100644
--- a/security/integrity/ima/ima_main.c
+++ b/security/integrity/ima/ima_main.c
@@ -1182,6 +1182,7 @@ static const struct lsm_id ima_lsmid = {
static int __init init_ima_lsm(void)
{
security_add_hooks(ima_hooks, ARRAY_SIZE(ima_hooks), &ima_lsmid);
+ init_ima_appraise_lsm(&ima_lsmid);
return 0;
}
diff --git a/security/security.c b/security/security.c
index 8495890a5a37..bed659b53e59 100644
--- a/security/security.c
+++ b/security/security.c
@@ -20,7 +20,6 @@
#include <linux/kernel_read_file.h>
#include <linux/lsm_hooks.h>
#include <linux/integrity.h>
-#include <linux/ima.h>
#include <linux/evm.h>
#include <linux/fsnotify.h>
#include <linux/mman.h>
@@ -2310,9 +2309,6 @@ int security_inode_setxattr(struct mnt_idmap *idmap,
ret = cap_inode_setxattr(dentry, name, value, size, flags);
if (ret)
return ret;
- ret = ima_inode_setxattr(idmap, dentry, name, value, size, flags);
- if (ret)
- return ret;
return evm_inode_setxattr(idmap, dentry, name, value, size, flags);
}
@@ -2340,9 +2336,6 @@ int security_inode_set_acl(struct mnt_idmap *idmap,
kacl);
if (ret)
return ret;
- ret = ima_inode_set_acl(idmap, dentry, acl_name, kacl);
- if (ret)
- return ret;
return evm_inode_set_acl(idmap, dentry, acl_name, kacl);
}
@@ -2403,9 +2396,6 @@ int security_inode_remove_acl(struct mnt_idmap *idmap,
ret = call_int_hook(inode_remove_acl, 0, idmap, dentry, acl_name);
if (ret)
return ret;
- ret = ima_inode_remove_acl(idmap, dentry, acl_name);
- if (ret)
- return ret;
return evm_inode_remove_acl(idmap, dentry, acl_name);
}
@@ -2505,9 +2495,6 @@ int security_inode_removexattr(struct mnt_idmap *idmap,
ret = cap_inode_removexattr(idmap, dentry, name);
if (ret)
return ret;
- ret = ima_inode_removexattr(idmap, dentry, name);
- if (ret)
- return ret;
return evm_inode_removexattr(idmap, dentry, name);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-15 21:16:56 +0000