diff options
| author | Olga Kornievskaia <kolga@netapp.com> | 2021-02-27 06:37:55 +0300 |
|---|---|---|
| committer | Paul Moore <paul@paul-moore.com> | 2021-03-22 21:53:37 +0300 |
| commit | 69c4a42d72eb9b41e1c6e4bc9ab7f3650bf35f62 (patch) | |
| tree | 564b363284f41cce68ff9b55a2d0fa811bd8bfcf /include/linux/security.h | |
| parent | 431c3be16bd08728325814320e3603ec3284d542 (diff) | |
| download | linux-69c4a42d72eb9b41e1c6e4bc9ab7f3650bf35f62.tar.xz | |
lsm,selinux: add new hook to compare new mount to an existing mount
Add a new hook that takes an existing super block and a new mount
with new options and determines if new options confict with an
existing mount or not.
A filesystem can use this new hook to determine if it can share
the an existing superblock with a new superblock for the new mount.
Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Acked-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
[PM: tweak the subject line, fix tab/space problems]
Signed-off-by: Paul Moore <paul@paul-moore.com>
Diffstat (limited to 'include/linux/security.h')
| -rw-r--r-- | include/linux/security.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/security.h b/include/linux/security.h index 8aeebd6646dc..f1e5833bfedc 100644 --- a/include/linux/security.h +++ b/include/linux/security.h @@ -294,6 +294,7 @@ int security_sb_alloc(struct super_block *sb); void security_sb_free(struct super_block *sb); void security_free_mnt_opts(void **mnt_opts); int security_sb_eat_lsm_opts(char *options, void **mnt_opts); +int security_sb_mnt_opts_compat(struct super_block *sb, void *mnt_opts); int security_sb_remount(struct super_block *sb, void *mnt_opts); int security_sb_kern_mount(struct super_block *sb); int security_sb_show_options(struct seq_file *m, struct super_block *sb); @@ -646,6 +647,13 @@ static inline int security_sb_remount(struct super_block *sb, return 0; } +static inline int security_sb_mnt_opts_compat(struct super_block *sb, + void *mnt_opts) +{ + return 0; +} + + static inline int security_sb_kern_mount(struct super_block *sb) { return 0; |