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authorEric Paris <eparis@redhat.com>2011-04-25 12:54:27 -0400
committerEric Paris <eparis@redhat.com>2011-04-25 18:13:15 -0400
commitf48b7399840b453e7282b523f535561fe9638a2d (patch)
tree29eed009469d35473367708ea60b9c5b01fc0c5f /security/selinux
parent0dc1ba24f7fff659725eecbba2c9ad679a0954cd (diff)
downloadlinux-f48b7399840b453e7282b523f535561fe9638a2d.tar.bz2
LSM: split LSM_AUDIT_DATA_FS into _PATH and _INODE
The lsm common audit code has wacky contortions making sure which pieces of information are set based on if it was given a path, dentry, or inode. Split this into path and inode to get rid of some of the code complexity. Signed-off-by: Eric Paris <eparis@redhat.com> Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Diffstat (limited to 'security/selinux')
-rw-r--r--security/selinux/avc.c2
-rw-r--r--security/selinux/hooks.c50
2 files changed, 26 insertions, 26 deletions
diff --git a/security/selinux/avc.c b/security/selinux/avc.c
index 1d027e29ce8d..ce742f1778e1 100644
--- a/security/selinux/avc.c
+++ b/security/selinux/avc.c
@@ -531,7 +531,7 @@ int avc_audit(u32 ssid, u32 tsid,
* during retry. However this is logically just as if the operation
* happened a little later.
*/
- if ((a->type == LSM_AUDIT_DATA_FS) &&
+ if ((a->type == LSM_AUDIT_DATA_INODE) &&
(flags & IPERM_FLAG_RCU))
return -ECHILD;
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index ed5f29aa0a38..ad664d3056eb 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -1488,8 +1488,8 @@ static int inode_has_perm(const struct cred *cred,
if (!adp) {
adp = &ad;
- COMMON_AUDIT_DATA_INIT(&ad, FS);
- ad.u.fs.inode = inode;
+ COMMON_AUDIT_DATA_INIT(&ad, INODE);
+ ad.u.inode = inode;
}
return avc_has_perm_flags(sid, isec->sid, isec->sclass, perms, adp, flags);
@@ -1506,9 +1506,9 @@ static inline int dentry_has_perm(const struct cred *cred,
struct inode *inode = dentry->d_inode;
struct common_audit_data ad;
- COMMON_AUDIT_DATA_INIT(&ad, FS);
- ad.u.fs.path.mnt = mnt;
- ad.u.fs.path.dentry = dentry;
+ COMMON_AUDIT_DATA_INIT(&ad, PATH);
+ ad.u.path.mnt = mnt;
+ ad.u.path.dentry = dentry;
return inode_has_perm(cred, inode, av, &ad, 0);
}
@@ -1530,8 +1530,8 @@ static int file_has_perm(const struct cred *cred,
u32 sid = cred_sid(cred);
int rc;
- COMMON_AUDIT_DATA_INIT(&ad, FS);
- ad.u.fs.path = file->f_path;
+ COMMON_AUDIT_DATA_INIT(&ad, PATH);
+ ad.u.path = file->f_path;
if (sid != fsec->sid) {
rc = avc_has_perm(sid, fsec->sid,
@@ -1569,8 +1569,8 @@ static int may_create(struct inode *dir,
sid = tsec->sid;
newsid = tsec->create_sid;
- COMMON_AUDIT_DATA_INIT(&ad, FS);
- ad.u.fs.path.dentry = dentry;
+ COMMON_AUDIT_DATA_INIT(&ad, PATH);
+ ad.u.path.dentry = dentry;
rc = avc_has_perm(sid, dsec->sid, SECCLASS_DIR,
DIR__ADD_NAME | DIR__SEARCH,
@@ -1621,8 +1621,8 @@ static int may_link(struct inode *dir,
dsec = dir->i_security;
isec = dentry->d_inode->i_security;
- COMMON_AUDIT_DATA_INIT(&ad, FS);
- ad.u.fs.path.dentry = dentry;
+ COMMON_AUDIT_DATA_INIT(&ad, PATH);
+ ad.u.path.dentry = dentry;
av = DIR__SEARCH;
av |= (kind ? DIR__REMOVE_NAME : DIR__ADD_NAME);
@@ -1667,9 +1667,9 @@ static inline int may_rename(struct inode *old_dir,
old_is_dir = S_ISDIR(old_dentry->d_inode->i_mode);
new_dsec = new_dir->i_security;
- COMMON_AUDIT_DATA_INIT(&ad, FS);
+ COMMON_AUDIT_DATA_INIT(&ad, PATH);
- ad.u.fs.path.dentry = old_dentry;
+ ad.u.path.dentry = old_dentry;
rc = avc_has_perm(sid, old_dsec->sid, SECCLASS_DIR,
DIR__REMOVE_NAME | DIR__SEARCH, &ad);
if (rc)
@@ -1685,7 +1685,7 @@ static inline int may_rename(struct inode *old_dir,
return rc;
}
- ad.u.fs.path.dentry = new_dentry;
+ ad.u.path.dentry = new_dentry;
av = DIR__ADD_NAME | DIR__SEARCH;
if (new_dentry->d_inode)
av |= DIR__REMOVE_NAME;
@@ -1991,8 +1991,8 @@ static int selinux_bprm_set_creds(struct linux_binprm *bprm)
return rc;
}
- COMMON_AUDIT_DATA_INIT(&ad, FS);
- ad.u.fs.path = bprm->file->f_path;
+ COMMON_AUDIT_DATA_INIT(&ad, PATH);
+ ad.u.path = bprm->file->f_path;
if (bprm->file->f_path.mnt->mnt_flags & MNT_NOSUID)
new_tsec->sid = old_tsec->sid;
@@ -2120,7 +2120,7 @@ static inline void flush_unauthorized_files(const struct cred *cred,
/* Revalidate access to inherited open files. */
- COMMON_AUDIT_DATA_INIT(&ad, FS);
+ COMMON_AUDIT_DATA_INIT(&ad, INODE);
spin_lock(&files->file_lock);
for (;;) {
@@ -2468,8 +2468,8 @@ static int selinux_sb_kern_mount(struct super_block *sb, int flags, void *data)
if (flags & MS_KERNMOUNT)
return 0;
- COMMON_AUDIT_DATA_INIT(&ad, FS);
- ad.u.fs.path.dentry = sb->s_root;
+ COMMON_AUDIT_DATA_INIT(&ad, PATH);
+ ad.u.path.dentry = sb->s_root;
return superblock_has_perm(cred, sb, FILESYSTEM__MOUNT, &ad);
}
@@ -2478,8 +2478,8 @@ static int selinux_sb_statfs(struct dentry *dentry)
const struct cred *cred = current_cred();
struct common_audit_data ad;
- COMMON_AUDIT_DATA_INIT(&ad, FS);
- ad.u.fs.path.dentry = dentry->d_sb->s_root;
+ COMMON_AUDIT_DATA_INIT(&ad, PATH);
+ ad.u.path.dentry = dentry->d_sb->s_root;
return superblock_has_perm(cred, dentry->d_sb, FILESYSTEM__GETATTR, &ad);
}
@@ -2653,8 +2653,8 @@ static int selinux_inode_permission(struct inode *inode, int mask, unsigned flag
if (!mask)
return 0;
- COMMON_AUDIT_DATA_INIT(&ad, FS);
- ad.u.fs.inode = inode;
+ COMMON_AUDIT_DATA_INIT(&ad, INODE);
+ ad.u.inode = inode;
if (from_access)
ad.selinux_audit_data.auditdeny |= FILE__AUDIT_ACCESS;
@@ -2732,8 +2732,8 @@ static int selinux_inode_setxattr(struct dentry *dentry, const char *name,
if (!is_owner_or_cap(inode))
return -EPERM;
- COMMON_AUDIT_DATA_INIT(&ad, FS);
- ad.u.fs.path.dentry = dentry;
+ COMMON_AUDIT_DATA_INIT(&ad, PATH);
+ ad.u.path.dentry = dentry;
rc = avc_has_perm(sid, isec->sid, isec->sclass,
FILE__RELABELFROM, &ad);