userns: Convert the audit loginuid to be a kuid

Always store audit loginuids in type kuid_t.

Print loginuids by converting them into uids in the appropriate user
namespace, and then printing the resulting uid.

Modify audit_get_loginuid to return a kuid_t.

Modify audit_set_loginuid to take a kuid_t.

Modify /proc/<pid>/loginuid on read to convert the loginuid into the
user namespace of the opener of the file.

Modify /proc/<pid>/loginud on write to convert the loginuid
rom the user namespace of the opener of the file.

Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Eric Paris <eparis@redhat.com>
Cc: Paul Moore <paul@paul-moore.com> ?
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
This commit is contained in:
Eric W. Biederman
2012-09-10 22:39:43 -07:00
parent ca57ec0f00
commit e1760bd5ff
18 changed files with 80 additions and 66 deletions

View File

@@ -553,7 +553,7 @@ extern void tty_audit_fork(struct signal_struct *sig);
extern void tty_audit_tiocsti(struct tty_struct *tty, char ch);
extern void tty_audit_push(struct tty_struct *tty);
extern int tty_audit_push_task(struct task_struct *tsk,
uid_t loginuid, u32 sessionid);
kuid_t loginuid, u32 sessionid);
#else
static inline void tty_audit_add_data(struct tty_struct *tty,
unsigned char *data, size_t size)
@@ -572,7 +572,7 @@ static inline void tty_audit_push(struct tty_struct *tty)
{
}
static inline int tty_audit_push_task(struct task_struct *tsk,
uid_t loginuid, u32 sessionid)
kuid_t loginuid, u32 sessionid)
{
return 0;
}