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LSM: lift parsing LSM options into the caller of ->sb_kern_mount()

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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 <[email protected]>
Signed-off-by: Al Viro <[email protected]>
This commit is contained in:
Al Viro 2018-12-01 22:42:44 -05:00
commit 6be8750b4c
6 changed files with 31 additions and 54 deletions
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23
security/smack/smack_lsm.c
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@ -859,27 +859,10 @@ static int smack_set_mnt_opts(struct super_block *sb,
*
* Returns 0 on success, an error code on failure
*/
static int smack_sb_kern_mount(struct super_block *sb, int flags, void *data)
static int smack_sb_kern_mount(struct super_block *sb, int flags,
struct security_mnt_opts *opts)
{
int rc = 0;
char *options = data;
struct security_mnt_opts opts;
security_init_mnt_opts(&opts);
if (!options)
goto out;
rc = smack_parse_opts_str(options, &opts);
if (rc)
goto out_err;
out:
rc = smack_set_mnt_opts(sb, &opts, 0, NULL);
out_err:
security_free_mnt_opts(&opts);
return rc;
return smack_set_mnt_opts(sb, opts, 0, NULL);
}
/**