diff options
| author |   Al Viro <viro@zeniv.linux.org.uk> | 2018-11-17 12:09:18 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2018-12-21 11:46:00 -0500 |
| commit | f5c0c26d9008b355babb6d16f3d7c4de3bada0e7 (patch) | |
| tree | 27370bd41579aa94dd36056956554e922a4455f9 /security/security.c | |
| parent | LSM: lift extracting and parsing LSM options into the caller of ->sb_remount() (diff) | |
| download | linux-dev-f5c0c26d9008b355babb6d16f3d7c4de3bada0e7.tar.xz linux-dev-f5c0c26d9008b355babb6d16f3d7c4de3bada0e7.zip | |
new helper: security_sb_eat_lsm_opts()
combination of alloc_secdata(), security_sb_copy_data(),
security_sb_parse_opt_str() and free_secdata().
Reviewed-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to '')
| -rw-r--r-- | security/security.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/security/security.c b/security/security.c index 3f50beb30fb1..02c656dd5c0c 100644 --- a/security/security.c +++ b/security/security.c @@ -384,11 +384,20 @@ void security_sb_free(struct super_block *sb) call_void_hook(sb_free_security, sb); } -int security_sb_copy_data(char *orig, char *copy) +int security_sb_eat_lsm_opts(char *options, struct security_mnt_opts *opts) { - return call_int_hook(sb_copy_data, 0, orig, copy); + char *s = (char *)get_zeroed_page(GFP_KERNEL); + int err; + + if (!s) + return -ENOMEM; + err = call_int_hook(sb_copy_data, 0, options, s); + if (!err) + err = call_int_hook(sb_parse_opts_str, 0, s, opts); + free_page((unsigned long)s); + return err; } -EXPORT_SYMBOL(security_sb_copy_data); +EXPORT_SYMBOL(security_sb_eat_lsm_opts); int security_sb_remount(struct super_block *sb, struct security_mnt_opts *opts) |