Smack: Implement lock security mode

[~andy/linux] / security / smack / smack_lsm.c

diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index 8825375cc031709b3918cd073cd574708c3f0405..88d366e55793fba5beb255fc6acbcddc2eaf40f6 100644 (file)
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -1146,7 +1146,7 @@ static int smack_file_ioctl(struct file *file, unsigned int cmd,
  * @file: the object
  * @cmd: unused
  *
- * Returns 0 if current has write access, error code otherwise
+ * Returns 0 if current has lock access, error code otherwise
  */
 static int smack_file_lock(struct file *file, unsigned int cmd)
 {
@@ -1154,7 +1154,7 @@ static int smack_file_lock(struct file *file, unsigned int cmd)
 
        smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
        smk_ad_setfield_u_fs_path(&ad, file->f_path);
-       return smk_curacc(file->f_security, MAY_WRITE, &ad);
+       return smk_curacc(file->f_security, MAY_LOCK, &ad);
 }
 
 /**
@@ -1178,8 +1178,13 @@ static int smack_file_fcntl(struct file *file, unsigned int cmd,
 
        switch (cmd) {
        case F_GETLK:
+               break;
        case F_SETLK:
        case F_SETLKW:
+               smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
+               smk_ad_setfield_u_fs_path(&ad, file->f_path);
+               rc = smk_curacc(file->f_security, MAY_LOCK, &ad);
+               break;
        case F_SETOWN:
        case F_SETSIG:
                smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);