diff options
author | David Howells <dhowells@redhat.com> | 2009-09-14 01:17:35 +0000 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2009-09-15 02:44:23 -0700 |
commit | 339412841d7620f93fea805fbd7469f08186f458 (patch) | |
tree | e2d385d76e3b9361671411442c5253417f95d5a6 /include/keys/rxrpc-type.h | |
parent | 8b815477f382f96deefbe5bd4404fa7b31cf5dcf (diff) | |
download | linux-339412841d7620f93fea805fbd7469f08186f458.tar.bz2 |
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/keys/rxrpc-type.h')
-rw-r--r-- | include/keys/rxrpc-type.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/include/keys/rxrpc-type.h b/include/keys/rxrpc-type.h index 7609365577f1..c0d91218fdd3 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 */ |