#include <linux/sched.h>
#include <linux/err.h>
#include <linux/seq_file.h>
+#include <linux/slab.h>
#include <asm/uaccess.h>
#include "internal.h"
seq_puts(m, "key:");
seq_puts(m, key->description);
- seq_printf(m, " pid:%d ci:%zu", rka->pid, strlen(rka->callout_info));
+ seq_printf(m, " pid:%d ci:%zu", rka->pid, rka->callout_len);
} /* end request_key_auth_describe() */
size_t datalen;
long ret;
- datalen = strlen(rka->callout_info);
+ datalen = rka->callout_len;
ret = datalen;
/* we can return the data as is */
}
key_put(rka->target_key);
+ key_put(rka->dest_keyring);
+ kfree(rka->callout_info);
kfree(rka);
} /* end request_key_auth_destroy() */
* create an authorisation token for /sbin/request-key or whoever to gain
* access to the caller's security data
*/
-struct key *request_key_auth_new(struct key *target, const char *callout_info)
+struct key *request_key_auth_new(struct key *target, const void *callout_info,
+ size_t callout_len, struct key *dest_keyring)
{
struct request_key_auth *rka, *irka;
struct key *authkey = NULL;
kleave(" = -ENOMEM");
return ERR_PTR(-ENOMEM);
}
+ rka->callout_info = kmalloc(callout_len, GFP_KERNEL);
+ if (!rka->callout_info) {
+ kleave(" = -ENOMEM");
+ kfree(rka);
+ return ERR_PTR(-ENOMEM);
+ }
/* see if the calling process is already servicing the key request of
* another process */
- if (current->request_key_auth) {
+ if (current->cred->request_key_auth) {
/* it is - use that instantiation context here too */
- down_read(¤t->request_key_auth->sem);
+ down_read(¤t->cred->request_key_auth->sem);
/* if the auth key has been revoked, then the key we're
* servicing is already instantiated */
if (test_bit(KEY_FLAG_REVOKED,
- ¤t->request_key_auth->flags))
+ ¤t->cred->request_key_auth->flags))
goto auth_key_revoked;
- irka = current->request_key_auth->payload.data;
+ irka = current->cred->request_key_auth->payload.data;
rka->context = irka->context;
rka->pid = irka->pid;
get_task_struct(rka->context);
- up_read(¤t->request_key_auth->sem);
+ up_read(¤t->cred->request_key_auth->sem);
}
else {
/* it isn't - use this process as the context */
}
rka->target_key = key_get(target);
- rka->callout_info = callout_info;
+ rka->dest_keyring = key_get(dest_keyring);
+ memcpy(rka->callout_info, callout_info, callout_len);
+ rka->callout_len = callout_len;
/* allocate the auth key */
sprintf(desc, "%x", target->serial);
authkey = key_alloc(&key_type_request_key_auth, desc,
- current->fsuid, current->fsgid, current,
+ current_fsuid(), current_fsgid(), current,
KEY_POS_VIEW | KEY_POS_READ | KEY_POS_SEARCH |
- KEY_USR_VIEW, 1);
+ KEY_USR_VIEW, KEY_ALLOC_NOT_IN_QUOTA);
if (IS_ERR(authkey)) {
ret = PTR_ERR(authkey);
goto error_alloc;
return authkey;
auth_key_revoked:
- up_read(¤t->request_key_auth->sem);
+ up_read(¤t->cred->request_key_auth->sem);
+ kfree(rka->callout_info);
kfree(rka);
kleave("= -EKEYREVOKED");
return ERR_PTR(-EKEYREVOKED);
key_put(authkey);
error_alloc:
key_put(rka->target_key);
+ key_put(rka->dest_keyring);
+ kfree(rka->callout_info);
kfree(rka);
kleave("= %d", ret);
return ERR_PTR(ret);
current);
if (IS_ERR(authkey_ref)) {
- authkey = ERR_PTR(PTR_ERR(authkey_ref));
+ authkey = ERR_CAST(authkey_ref);
goto error;
}