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CRED: Wrap task credential accesses in the tty driver

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Wrap access to task credentials so that they can be separated more easily from
the task_struct during the introduction of COW creds.

Change most current->(|e|s|fs)[ug]id to current_(|e|s|fs)[ug]id().

Change some task->e?[ug]id to task_e?[ug]id().  In some places it makes more
sense to use RCU directly rather than a convenient wrapper; these will be
addressed by later patches.

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: James Morris <jmorris@namei.org>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: James Morris <jmorris@namei.org>
This commit is contained in:
David Howells 2008-11-14 10:38:41 +11:00 committed by James Morris
parent b0fafa816e
commit 66303bce9b
1 changed files with 4 additions and 2 deletions
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6
drivers/char/tty_audit.c
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@ -86,10 +86,12 @@ static void tty_audit_buf_push(struct task_struct *tsk, uid_t loginuid,
ab = audit_log_start(NULL, GFP_KERNEL, AUDIT_TTY);
if (ab) {
char name[sizeof(tsk->comm)];
uid_t uid = task_uid(tsk);
audit_log_format(ab, "tty pid=%u uid=%u auid=%u ses=%u "
"major=%d minor=%d comm=", tsk->pid, tsk->uid,
loginuid, sessionid, buf->major, buf->minor);
"major=%d minor=%d comm=",
tsk->pid, uid, loginuid, sessionid,
buf->major, buf->minor);
get_task_comm(name, tsk);
audit_log_untrustedstring(ab, name);
audit_log_format(ab, " data=");