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authorEric Paris <eparis@redhat.com>2011-02-01 11:05:39 -0500
committerEric Paris <eparis@redhat.com>2011-02-01 11:12:29 -0500
commit2a7dba391e5628ad665ce84ef9a6648da541ebab (patch)
treeba0722bd74d2c883dbda7ff721850bab411cac04 /fs/jfs/xattr.c
parent821404434f3324bf23f545050ff64055a149766e (diff)
fs/vfs/security: pass last path component to LSM on inode creation
SELinux would like to implement a new labeling behavior of newly created inodes. We currently label new inodes based on the parent and the creating process. This new behavior would also take into account the name of the new object when deciding the new label. This is not the (supposed) full path, just the last component of the path. This is very useful because creating /etc/shadow is different than creating /etc/passwd but the kernel hooks are unable to differentiate these operations. We currently require that userspace realize it is doing some difficult operation like that and than userspace jumps through SELinux hoops to get things set up correctly. This patch does not implement new behavior, that is obviously contained in a seperate SELinux patch, but it does pass the needed name down to the correct LSM hook. If no such name exists it is fine to pass NULL. Signed-off-by: Eric Paris <eparis@redhat.com>
Diffstat (limited to 'fs/jfs/xattr.c')
-rw-r--r--fs/jfs/xattr.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/jfs/xattr.c b/fs/jfs/xattr.c
index 2d7f165d0f1d..3fa4c32272df 100644
--- a/fs/jfs/xattr.c
+++ b/fs/jfs/xattr.c
@@ -1091,7 +1091,8 @@ int jfs_removexattr(struct dentry *dentry, const char *name)
1091} 1091}
1092 1092
1093#ifdef CONFIG_JFS_SECURITY 1093#ifdef CONFIG_JFS_SECURITY
1094int jfs_init_security(tid_t tid, struct inode *inode, struct inode *dir) 1094int jfs_init_security(tid_t tid, struct inode *inode, struct inode *dir,
1095 const struct qstr *qstr)
1095{ 1096{
1096 int rc; 1097 int rc;
1097 size_t len; 1098 size_t len;
@@ -1099,7 +1100,8 @@ int jfs_init_security(tid_t tid, struct inode *inode, struct inode *dir)
1099 char *suffix; 1100 char *suffix;
1100 char *name; 1101 char *name;
1101 1102
1102 rc = security_inode_init_security(inode, dir, &suffix, &value, &len); 1103 rc = security_inode_init_security(inode, dir, qstr, &suffix, &value,
1104 &len);
1103 if (rc) { 1105 if (rc) {
1104 if (rc == -EOPNOTSUPP) 1106 if (rc == -EOPNOTSUPP)
1105 return 0; 1107 return 0;