aboutsummaryrefslogtreecommitdiff
path: root/include
diff options
context:
space:
mode:
authorDavid Howells <dhowells@redhat.com>2009-09-14 01:17:35 +0000
committerDavid S. Miller <davem@davemloft.net>2009-09-15 02:44:23 -0700
commit339412841d7620f93fea805fbd7469f08186f458 (patch)
treee2d385d76e3b9361671411442c5253417f95d5a6 /include
parent8b815477f382f96deefbe5bd4404fa7b31cf5dcf (diff)
downloadlinux-339412841d7620f93fea805fbd7469f08186f458.tar.gz
RxRPC: Allow key payloads to be passed in XDR form
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>
Diffstat (limited to 'include')
-rw-r--r--include/keys/rxrpc-type.h55
1 files changed, 55 insertions, 0 deletions
diff --git a/include/keys/rxrpc-type.h b/include/keys/rxrpc-type.h
index 7609365577f..c0d91218fdd 100644
--- a/include/keys/rxrpc-type.h
+++ b/include/keys/rxrpc-type.h
@@ -21,4 +21,59 @@ extern struct key_type key_type_rxrpc;
extern struct key *rxrpc_get_null_key(const char *);
+/*
+ * RxRPC key for Kerberos IV (type-2 security)
+ */
+struct rxkad_key {
+ u32 vice_id;
+ u32 start; /* time at which ticket starts */
+ u32 expiry; /* time at which ticket expires */
+ u32 kvno; /* key version number */
+ u8 primary_flag; /* T if key for primary cell for this user */
+ u16 ticket_len; /* length of ticket[] */
+ u8 session_key[8]; /* DES session key */
+ u8 ticket[0]; /* the encrypted ticket */
+};
+
+/*
+ * list of tokens attached to an rxrpc key
+ */
+struct rxrpc_key_token {
+ u16 security_index; /* RxRPC header security index */
+ struct rxrpc_key_token *next; /* the next token in the list */
+ union {
+ struct rxkad_key *kad;
+ };
+};
+
+/*
+ * structure of raw payloads passed to add_key() or instantiate key
+ */
+struct rxrpc_key_data_v1 {
+ u32 kif_version; /* 1 */
+ u16 security_index;
+ u16 ticket_length;
+ u32 expiry; /* time_t */
+ u32 kvno;
+ u8 session_key[8];
+ u8 ticket[0];
+};
+
+/*
+ * AF_RXRPC key payload derived from XDR format
+ * - based on openafs-1.4.10/src/auth/afs_token.xg
+ */
+#define AFSTOKEN_LENGTH_MAX 16384 /* max payload size */
+#define AFSTOKEN_CELL_MAX 64 /* max cellname length */
+#define AFSTOKEN_MAX 8 /* max tokens per payload */
+#define AFSTOKEN_RK_TIX_MAX 12000 /* max RxKAD ticket size */
+#define AFSTOKEN_GK_KEY_MAX 64 /* max GSSAPI key size */
+#define AFSTOKEN_GK_TOKEN_MAX 16384 /* max GSSAPI token size */
+#define AFSTOKEN_K5_COMPONENTS_MAX 16 /* max K5 components */
+#define AFSTOKEN_K5_NAME_MAX 128 /* max K5 name length */
+#define AFSTOKEN_K5_REALM_MAX 64 /* max K5 realm name length */
+#define AFSTOKEN_K5_TIX_MAX 16384 /* max K5 ticket size */
+#define AFSTOKEN_K5_ADDRESSES_MAX 16 /* max K5 addresses */
+#define AFSTOKEN_K5_AUTHDATA_MAX 16 /* max K5 pieces of auth data */
+
#endif /* _KEYS_RXRPC_TYPE_H */