const char *op,
void *aux)
{
- struct task_struct *tsk = current;
const struct cred *cred = current_cred();
key_serial_t prkey, sskey;
- struct key *key = cons->key, *authkey = cons->authkey, *keyring;
+ struct key *key = cons->key, *authkey = cons->authkey, *keyring,
+ *session;
char *argv[9], *envp[3], uid_str[12], gid_str[12];
char key_str[12], keyring_str[3][12];
char desc[20];
/* allocate a new session keyring */
sprintf(desc, "_req.%u", key->serial);
- keyring = keyring_alloc(desc, current_fsuid(), current_fsgid(), current,
+ cred = get_current_cred();
+ keyring = keyring_alloc(desc, cred->fsuid, cred->fsgid, cred,
KEY_ALLOC_QUOTA_OVERRUN, NULL);
+ put_cred(cred);
if (IS_ERR(keyring)) {
ret = PTR_ERR(keyring);
goto error_alloc;
/* we specify the process's default keyrings */
sprintf(keyring_str[0], "%d",
- cred->thread_keyring ?
- cred->thread_keyring->serial : 0);
+ cred->thread_keyring ? cred->thread_keyring->serial : 0);
prkey = 0;
- if (tsk->signal->process_keyring)
- prkey = tsk->signal->process_keyring->serial;
+ if (cred->tgcred->process_keyring)
+ prkey = cred->tgcred->process_keyring->serial;
- sprintf(keyring_str[1], "%d", prkey);
-
- if (tsk->signal->session_keyring) {
- rcu_read_lock();
- sskey = rcu_dereference(tsk->signal->session_keyring)->serial;
- rcu_read_unlock();
- } else {
- sskey = cred->user->session_keyring->serial;
- }
+ rcu_read_lock();
+ session = rcu_dereference(cred->tgcred->session_keyring);
+ if (!session)
+ session = cred->user->session_keyring;
+ sskey = session->serial;
+ rcu_read_unlock();
sprintf(keyring_str[2], "%d", sskey);
key_put(keyring);
error_alloc:
- kleave(" = %d", ret);
complete_request_key(cons, ret);
+ kleave(" = %d", ret);
return ret;
}
static void construct_get_dest_keyring(struct key **_dest_keyring)
{
struct request_key_auth *rka;
- struct task_struct *tsk = current;
+ const struct cred *cred = current_cred();
struct key *dest_keyring = *_dest_keyring, *authkey;
kenter("%p", dest_keyring);
} else {
/* use a default keyring; falling through the cases until we
* find one that we actually have */
- switch (tsk->cred->jit_keyring) {
+ switch (cred->jit_keyring) {
case KEY_REQKEY_DEFL_DEFAULT:
case KEY_REQKEY_DEFL_REQUESTOR_KEYRING:
- if (tsk->cred->request_key_auth) {
- authkey = tsk->cred->request_key_auth;
+ if (cred->request_key_auth) {
+ authkey = cred->request_key_auth;
down_read(&authkey->sem);
rka = authkey->payload.data;
if (!test_bit(KEY_FLAG_REVOKED,
}
case KEY_REQKEY_DEFL_THREAD_KEYRING:
- dest_keyring = key_get(tsk->cred->thread_keyring);
+ dest_keyring = key_get(cred->thread_keyring);
if (dest_keyring)
break;
case KEY_REQKEY_DEFL_PROCESS_KEYRING:
- dest_keyring = key_get(tsk->signal->process_keyring);
+ dest_keyring = key_get(cred->tgcred->process_keyring);
if (dest_keyring)
break;
case KEY_REQKEY_DEFL_SESSION_KEYRING:
rcu_read_lock();
dest_keyring = key_get(
- rcu_dereference(tsk->signal->session_keyring));
+ rcu_dereference(cred->tgcred->session_keyring));
rcu_read_unlock();
if (dest_keyring)
case KEY_REQKEY_DEFL_USER_SESSION_KEYRING:
dest_keyring =
- key_get(tsk->cred->user->session_keyring);
+ key_get(cred->user->session_keyring);
break;
case KEY_REQKEY_DEFL_USER_KEYRING:
- dest_keyring = key_get(tsk->cred->user->uid_keyring);
+ dest_keyring = key_get(cred->user->uid_keyring);
break;
case KEY_REQKEY_DEFL_GROUP_KEYRING:
struct key_user *user,
struct key **_key)
{
+ const struct cred *cred = current_cred();
struct key *key;
key_ref_t key_ref;
mutex_lock(&user->cons_lock);
- key = key_alloc(type, description,
- current_fsuid(), current_fsgid(), current, KEY_POS_ALL,
- flags);
+ key = key_alloc(type, description, cred->fsuid, cred->fsgid, cred,
+ KEY_POS_ALL, flags);
if (IS_ERR(key))
goto alloc_failed;
set_bit(KEY_FLAG_USER_CONSTRUCT, &key->flags);
- down_write(&dest_keyring->sem);
+ if (dest_keyring)
+ down_write(&dest_keyring->sem);
/* attach the key to the destination keyring under lock, but we do need
* to do another check just in case someone beat us to it whilst we
* waited for locks */
mutex_lock(&key_construction_mutex);
- key_ref = search_process_keyrings(type, description, type->match,
- current);
+ key_ref = search_process_keyrings(type, description, type->match, cred);
if (!IS_ERR(key_ref))
goto key_already_present;
- __key_link(dest_keyring, key);
+ if (dest_keyring)
+ __key_link(dest_keyring, key);
mutex_unlock(&key_construction_mutex);
- up_write(&dest_keyring->sem);
+ if (dest_keyring)
+ up_write(&dest_keyring->sem);
mutex_unlock(&user->cons_lock);
*_key = key;
kleave(" = 0 [%d]", key_serial(key));
key_already_present:
mutex_unlock(&key_construction_mutex);
- if (dest_keyring)
+ if (dest_keyring) {
+ __key_link(dest_keyring, key_ref_to_ptr(key_ref));
up_write(&dest_keyring->sem);
+ }
mutex_unlock(&user->cons_lock);
key_put(key);
*_key = key = key_ref_to_ptr(key_ref);
struct key *key;
int ret;
- user = key_user_lookup(current_fsuid());
+ kenter("");
+
+ user = key_user_lookup(current_fsuid(), current_user_ns());
if (!user)
return ERR_PTR(-ENOMEM);
if (ret == 0) {
ret = construct_key(key, callout_info, callout_len, aux,
dest_keyring);
- if (ret < 0)
+ if (ret < 0) {
+ kdebug("cons failed");
goto construction_failed;
+ }
}
key_put(dest_keyring);
+ kleave(" = key %d", key_serial(key));
return key;
construction_failed:
key_negate_and_link(key, key_negative_timeout, NULL, NULL);
key_put(key);
key_put(dest_keyring);
+ kleave(" = %d", ret);
return ERR_PTR(ret);
}
struct key *dest_keyring,
unsigned long flags)
{
+ const struct cred *cred = current_cred();
struct key *key;
key_ref_t key_ref;
/* search all the process keyrings for a key */
key_ref = search_process_keyrings(type, description, type->match,
- current);
+ cred);
if (!IS_ERR(key_ref)) {
key = key_ref_to_ptr(key_ref);
+ if (dest_keyring) {
+ construct_get_dest_keyring(&dest_keyring);
+ key_link(dest_keyring, key);
+ key_put(dest_keyring);
+ }
} else if (PTR_ERR(key_ref) != -EAGAIN) {
key = ERR_CAST(key_ref);
} else {
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff