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RxRPC: Allow key payloads to be passed in XDR form

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Allow add_key() and KEYCTL_INSTANTIATE to accept key payloads in XDR form as
described by openafs-1.4.10/src/auth/afs_token.xg.  This provides a way of
passing kaserver, Kerberos 4, Kerberos 5 and GSSAPI keys from userspace, and
allows for future expansion.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David Howells 2009-09-14 01:17:35 +00:00 • committed by David S. Miller
parent 8b815477f3
commit 339412841d
5 changed files with 353 additions and 75 deletions
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8
net/rxrpc/ar-security.c
View file

@ -16,6 +16,7 @@
#include <linux/crypto.h>
#include <net/sock.h>
#include <net/af_rxrpc.h>
#include <keys/rxrpc-type.h>
#include "ar-internal.h"
static LIST_HEAD(rxrpc_security_methods);
@ -122,6 +123,7 @@ EXPORT_SYMBOL_GPL(rxrpc_unregister_security);
*/
int rxrpc_init_client_conn_security(struct rxrpc_connection *conn)
{
struct rxrpc_key_token *token;
struct rxrpc_security *sec;
struct key *key = conn->key;
int ret;
@ -135,7 +137,11 @@ int rxrpc_init_client_conn_security(struct rxrpc_connection *conn)
if (ret < 0)
return ret;
sec = rxrpc_security_lookup(key->type_data.x[0]);
if (!key->payload.data)
return -EKEYREJECTED;
token = key->payload.data;
sec = rxrpc_security_lookup(token->security_index);
if (!sec)
return -EKEYREJECTED;
conn->security = sec;