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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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3
include/linux/lsm_hooks.h
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@ -1462,7 +1462,8 @@ union security_list_options {
int (*sb_alloc_security)(struct super_block *sb);
void (*sb_free_security)(struct super_block *sb);
int (*sb_copy_data)(char *orig, char *copy);
int (*sb_remount)(struct super_block *sb, void *data);
int (*sb_remount)(struct super_block *sb,
struct security_mnt_opts *opts);
int (*sb_kern_mount)(struct super_block *sb, int flags,
struct security_mnt_opts *opts);
int (*sb_show_options)(struct seq_file *m, struct super_block *sb);