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LSM: lift extracting and parsing LSM options into the caller of ->sb_remount()

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This paves the way for retaining the LSM options from a common filesystem
mount context during a mount parameter parsing phase to be instituted prior
to actual mount/reconfiguration actions.

Reviewed-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2018-12-01 23:06:57 -05:00
parent 6be8750b4c
commit c039bc3c24
5 changed files with 38 additions and 41 deletions
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5
include/linux/security.h
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@@ -249,7 +249,7 @@ void security_bprm_committed_creds(struct linux_binprm *bprm);
int security_sb_alloc(struct super_block *sb);
void security_sb_free(struct super_block *sb);
int security_sb_copy_data(char *orig, char *copy);
int security_sb_remount(struct super_block *sb, void *data);
int security_sb_remount(struct super_block *sb, struct security_mnt_opts *opts);
int security_sb_kern_mount(struct super_block *sb, int flags,
struct security_mnt_opts *opts);
int security_sb_show_options(struct seq_file *m, struct super_block *sb);
@@ -561,7 +561,8 @@ static inline int security_sb_copy_data(char *orig, char *copy)
return 0;
}
static inline int security_sb_remount(struct super_block *sb, void *data)
static inline int security_sb_remount(struct super_block *sb,
struct security_mnt_opts *opts)
{
return 0;
}