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/* RxRPC key type
*
* Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#ifndef _KEYS_RXRPC_TYPE_H
#define _KEYS_RXRPC_TYPE_H
#include <linux/key.h>
/*
* key type for AF_RXRPC keys
*/
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 */
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