diff options
| author |   Al Viro <viro@zeniv.linux.org.uk> | 2012-05-30 13:30:51 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-05-31 13:11:54 -0400 |
| commit | e5467859f7f79b69fc49004403009dfdba3bec53 (patch) | |
| tree | 73b011daf79eeddd61bbcaf65cd197b5e5f6f149 /security/smack | |
| parent | split cap_mmap_addr() out of cap_file_mmap() (diff) | |
| download | linux-dev-e5467859f7f79b69fc49004403009dfdba3bec53.tar.xz linux-dev-e5467859f7f79b69fc49004403009dfdba3bec53.zip | |
split ->file_mmap() into ->mmap_addr()/->mmap_file()
... i.e. file-dependent and address-dependent checks.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'security/smack')
| -rw-r--r-- | security/smack/smack_lsm.c | 15 |
1 files changed, 5 insertions, 10 deletions
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c index a62197718768..ee0bb5735f35 100644 --- a/security/smack/smack_lsm.c +++ b/security/smack/smack_lsm.c @@ -1171,7 +1171,7 @@ static int smack_file_fcntl(struct file *file, unsigned int cmd, } /** - * smack_file_mmap : + * smack_mmap_file : * Check permissions for a mmap operation. The @file may be NULL, e.g. * if mapping anonymous memory. * @file contains the file structure for file to map (may be NULL). @@ -1180,10 +1180,9 @@ static int smack_file_fcntl(struct file *file, unsigned int cmd, * @flags contains the operational flags. * Return 0 if permission is granted. */ -static int smack_file_mmap(struct file *file, +static int smack_mmap_file(struct file *file, unsigned long reqprot, unsigned long prot, - unsigned long flags, unsigned long addr, - unsigned long addr_only) + unsigned long flags) { struct smack_known *skp; struct smack_rule *srp; @@ -1198,11 +1197,6 @@ static int smack_file_mmap(struct file *file, int tmay; int rc; - /* do DAC check on address space usage */ - rc = cap_mmap_addr(addr); - if (rc || addr_only) - return rc; - if (file == NULL || file->f_dentry == NULL) return 0; @@ -3482,7 +3476,8 @@ struct security_operations smack_ops = { .file_ioctl = smack_file_ioctl, .file_lock = smack_file_lock, .file_fcntl = smack_file_fcntl, - .file_mmap = smack_file_mmap, + .mmap_file = smack_mmap_file, + .mmap_addr = cap_mmap_addr, .file_set_fowner = smack_file_set_fowner, .file_send_sigiotask = smack_file_send_sigiotask, .file_receive = smack_file_receive, |