CRED: Separate task security context from task_struct
Separate the task security context from task_struct. At this point, the
security data is temporarily embedded in the task_struct with two pointers
pointing to it.
Note that the Alpha arch is altered as it refers to (E)UID and (E)GID in
entry.S via asm-offsets.
With comment fixes Signed-off-by: Marc Dionne <marc.c.dionne@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: James Morris <jmorris@namei.org>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>
diff --git a/security/keys/request_key.c b/security/keys/request_key.c
index 8e9d93b..3e9b9eb 100644
--- a/security/keys/request_key.c
+++ b/security/keys/request_key.c
@@ -104,7 +104,8 @@
/* we specify the process's default keyrings */
sprintf(keyring_str[0], "%d",
- tsk->thread_keyring ? tsk->thread_keyring->serial : 0);
+ tsk->cred->thread_keyring ?
+ tsk->cred->thread_keyring->serial : 0);
prkey = 0;
if (tsk->signal->process_keyring)
@@ -117,7 +118,7 @@
sskey = rcu_dereference(tsk->signal->session_keyring)->serial;
rcu_read_unlock();
} else {
- sskey = tsk->user->session_keyring->serial;
+ sskey = tsk->cred->user->session_keyring->serial;
}
sprintf(keyring_str[2], "%d", sskey);
@@ -232,11 +233,11 @@
} else {
/* use a default keyring; falling through the cases until we
* find one that we actually have */
- switch (tsk->jit_keyring) {
+ switch (tsk->cred->jit_keyring) {
case KEY_REQKEY_DEFL_DEFAULT:
case KEY_REQKEY_DEFL_REQUESTOR_KEYRING:
- if (tsk->request_key_auth) {
- authkey = tsk->request_key_auth;
+ if (tsk->cred->request_key_auth) {
+ authkey = tsk->cred->request_key_auth;
down_read(&authkey->sem);
rka = authkey->payload.data;
if (!test_bit(KEY_FLAG_REVOKED,
@@ -249,7 +250,7 @@
}
case KEY_REQKEY_DEFL_THREAD_KEYRING:
- dest_keyring = key_get(tsk->thread_keyring);
+ dest_keyring = key_get(tsk->cred->thread_keyring);
if (dest_keyring)
break;
@@ -268,11 +269,12 @@
break;
case KEY_REQKEY_DEFL_USER_SESSION_KEYRING:
- dest_keyring = key_get(tsk->user->session_keyring);
+ dest_keyring =
+ key_get(tsk->cred->user->session_keyring);
break;
case KEY_REQKEY_DEFL_USER_KEYRING:
- dest_keyring = key_get(tsk->user->uid_keyring);
+ dest_keyring = key_get(tsk->cred->user->uid_keyring);
break;
case KEY_REQKEY_DEFL_GROUP_KEYRING: