diff options
| author |   Al Viro <viro@zeniv.linux.org.uk> | 2018-12-12 20:13:29 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2018-12-21 11:47:41 -0500 |
| commit | 5b4002391153acebce2557af318bbdc17e235134 (patch) | |
| tree | b5c6afc5fbffd01ca682332e2893bad477e59b9d /security/selinux/hooks.c | |
| parent | nfs_remount(): don't leak, don't ignore LSM options quietly (diff) | |
| download | linux-dev-5b4002391153acebce2557af318bbdc17e235134.tar.xz linux-dev-5b4002391153acebce2557af318bbdc17e235134.zip | |
LSM: turn sb_eat_lsm_opts() into a method
Kill ->sb_copy_data() - it's used only in combination with immediately
following ->sb_parse_opts_str(). Turn that combination into a new
method.
This is just a mechanical move - cleanups will be the next step.
Reviewed-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to '')
| -rw-r--r-- | security/selinux/hooks.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index 630fe8883957..ce0511f024e0 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -2810,6 +2810,20 @@ out: return rc; } +static int selinux_sb_eat_lsm_opts(char *options, struct security_mnt_opts *opts) +{ + char *s = (char *)get_zeroed_page(GFP_KERNEL); + int err; + + if (!s) + return -ENOMEM; + err = selinux_sb_copy_data(options, s); + if (!err) + err = selinux_parse_opts_str(s, opts); + free_page((unsigned long)s); + return err; +} + static int selinux_sb_remount(struct super_block *sb, struct security_mnt_opts *opts) { @@ -6863,7 +6877,7 @@ static struct security_hook_list selinux_hooks[] __lsm_ro_after_init = { LSM_HOOK_INIT(sb_alloc_security, selinux_sb_alloc_security), LSM_HOOK_INIT(sb_free_security, selinux_sb_free_security), - LSM_HOOK_INIT(sb_copy_data, selinux_sb_copy_data), + LSM_HOOK_INIT(sb_eat_lsm_opts, selinux_sb_eat_lsm_opts), LSM_HOOK_INIT(sb_remount, selinux_sb_remount), LSM_HOOK_INIT(sb_kern_mount, selinux_sb_kern_mount), LSM_HOOK_INIT(sb_show_options, selinux_sb_show_options), |