diff options
| author | Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> | 2019-01-19 23:11:40 +0900 |
|---|---|---|
| committer | James Morris <james.morris@microsoft.com> | 2019-01-23 11:36:15 -0800 |
| commit | 8c6cb983cd52d78ab4e4c0191c73a11dcb60b866 (patch) | |
| tree | c79c9274855fa8dcb1a7fa0da75c710036351c25 /security/tomoyo/securityfs_if.c | |
| parent | 23711df7f4a268dce2adba379ad77ded8220d097 (diff) | |
| download | linux-8c6cb983cd52d78ab4e4c0191c73a11dcb60b866.tar.bz2 | |
tomoyo: Swicth from cred->security to task_struct->security.
TOMOYO security module is designed to use "struct task_struct"->security
in order to allow per "struct task_struct" tracking without being disturbed
by unable to update "struct cred"->security due to override mechanism.
Now that infrastructure-managed security blob is ready, this patch updates
TOMOYO to use "struct task_struct"->security.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <james.morris@microsoft.com>
Diffstat (limited to 'security/tomoyo/securityfs_if.c')
| -rw-r--r-- | security/tomoyo/securityfs_if.c | 21 |
1 files changed, 7 insertions, 14 deletions
diff --git a/security/tomoyo/securityfs_if.c b/security/tomoyo/securityfs_if.c index 768dff9608b1..338872fa3d06 100644 --- a/security/tomoyo/securityfs_if.c +++ b/security/tomoyo/securityfs_if.c @@ -67,21 +67,14 @@ static ssize_t tomoyo_write_self(struct file *file, const char __user *buf, if (!new_domain) { error = -ENOENT; } else { - struct cred *cred = prepare_creds(); - if (!cred) { - error = -ENOMEM; - } else { - struct tomoyo_domain_info **blob; - struct tomoyo_domain_info *old_domain; + struct tomoyo_task *s = tomoyo_task(current); + struct tomoyo_domain_info *old_domain = + s->domain_info; - blob = tomoyo_cred(cred); - old_domain = *blob; - *blob = new_domain; - atomic_inc(&new_domain->users); - atomic_dec(&old_domain->users); - commit_creds(cred); - error = 0; - } + s->domain_info = new_domain; + atomic_inc(&new_domain->users); + atomic_dec(&old_domain->users); + error = 0; } } tomoyo_read_unlock(idx); |