diff options
Diffstat (limited to 'include/net/sctp/auth.h')
| -rw-r--r-- | include/net/sctp/auth.h | 78 |
1 files changed, 29 insertions, 49 deletions
diff --git a/include/net/sctp/auth.h b/include/net/sctp/auth.h index 49bc9577c61e..6f2cd562b1de 100644 --- a/include/net/sctp/auth.h +++ b/include/net/sctp/auth.h @@ -1,58 +1,32 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* SCTP kernel implementation * (C) Copyright 2007 Hewlett-Packard Development Company, L.P. * * This file is part of the SCTP kernel implementation * - * This SCTP implementation 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, or (at your option) - * any later version. - * - * This SCTP implementation is distributed in the hope that it - * will be useful, but WITHOUT ANY WARRANTY; without even the implied - * ************************ - * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. - * See the GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with GNU CC; see the file COPYING. If not, write to - * the Free Software Foundation, 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - * * Please send any bug reports or fixes you make to the * email address(es): - * lksctp developers <lksctp-developers@lists.sourceforge.net> - * - * Or submit a bug report through the following website: - * http://www.sf.net/projects/lksctp + * lksctp developers <linux-sctp@vger.kernel.org> * * Written or modified by: * Vlad Yasevich <vladislav.yasevich@hp.com> - * - * Any bugs reported given to us we will try to fix... any fixes shared will - * be incorporated into the next SCTP release. */ #ifndef __sctp_auth_h__ #define __sctp_auth_h__ #include <linux/list.h> -#include <linux/crypto.h> +#include <linux/refcount.h> struct sctp_endpoint; struct sctp_association; struct sctp_authkey; struct sctp_hmacalgo; -/* - * Define a generic struct that will hold all the info - * necessary for an HMAC transform - */ +/* Defines an HMAC algorithm supported by SCTP chunk authentication */ struct sctp_hmac { - __u16 hmac_id; /* one of the above ids */ - char *hmac_name; /* name for loading */ - __u16 hmac_len; /* length of the signature */ + __u16 hmac_id; /* one of SCTP_AUTH_HMAC_ID_* */ + __u16 hmac_len; /* length of the HMAC value in bytes */ }; /* This is generic structure that containst authentication bytes used @@ -60,7 +34,7 @@ struct sctp_hmac { * over SCTP-AUTH */ struct sctp_auth_bytes { - atomic_t refcnt; + refcount_t refcnt; __u32 len; __u8 data[]; }; @@ -68,8 +42,10 @@ struct sctp_auth_bytes { /* Definition for a shared key, weather endpoint or association */ struct sctp_shared_key { struct list_head key_list; - __u16 key_id; struct sctp_auth_bytes *key; + refcount_t refcnt; + __u16 key_id; + __u8 deactivated; }; #define key_for_each(__key, __list_head) \ @@ -83,7 +59,7 @@ static inline void sctp_auth_key_hold(struct sctp_auth_bytes *key) if (!key) return; - atomic_inc(&key->refcnt); + refcount_inc(&key->refcnt); } void sctp_auth_key_put(struct sctp_auth_bytes *key); @@ -96,32 +72,36 @@ struct sctp_shared_key *sctp_auth_get_shkey( int sctp_auth_asoc_copy_shkeys(const struct sctp_endpoint *ep, struct sctp_association *asoc, gfp_t gfp); -int sctp_auth_init_hmacs(struct sctp_endpoint *ep, gfp_t gfp); -void sctp_auth_destroy_hmacs(struct crypto_hash *auth_hmacs[]); -struct sctp_hmac *sctp_auth_get_hmac(__u16 hmac_id); -struct sctp_hmac *sctp_auth_asoc_get_hmac(const struct sctp_association *asoc); +const struct sctp_hmac *sctp_auth_get_hmac(__u16 hmac_id); +const struct sctp_hmac * +sctp_auth_asoc_get_hmac(const struct sctp_association *asoc); void sctp_auth_asoc_set_default_hmac(struct sctp_association *asoc, struct sctp_hmac_algo_param *hmacs); int sctp_auth_asoc_verify_hmac_id(const struct sctp_association *asoc, __be16 hmac_id); -int sctp_auth_send_cid(sctp_cid_t chunk, const struct sctp_association *asoc); -int sctp_auth_recv_cid(sctp_cid_t chunk, const struct sctp_association *asoc); +int sctp_auth_send_cid(enum sctp_cid chunk, + const struct sctp_association *asoc); +int sctp_auth_recv_cid(enum sctp_cid chunk, + const struct sctp_association *asoc); void sctp_auth_calculate_hmac(const struct sctp_association *asoc, - struct sk_buff *skb, - struct sctp_auth_chunk *auth, gfp_t gfp); + struct sk_buff *skb, struct sctp_auth_chunk *auth, + struct sctp_shared_key *ep_key, gfp_t gfp); +void sctp_auth_shkey_release(struct sctp_shared_key *sh_key); +void sctp_auth_shkey_hold(struct sctp_shared_key *sh_key); /* API Helpers */ int sctp_auth_ep_add_chunkid(struct sctp_endpoint *ep, __u8 chunk_id); int sctp_auth_ep_set_hmacs(struct sctp_endpoint *ep, struct sctp_hmacalgo *hmacs); -int sctp_auth_set_key(struct sctp_endpoint *ep, - struct sctp_association *asoc, +int sctp_auth_set_key(struct sctp_endpoint *ep, struct sctp_association *asoc, struct sctp_authkey *auth_key); int sctp_auth_set_active_key(struct sctp_endpoint *ep, - struct sctp_association *asoc, - __u16 key_id); + struct sctp_association *asoc, __u16 key_id); int sctp_auth_del_key_id(struct sctp_endpoint *ep, - struct sctp_association *asoc, - __u16 key_id); + struct sctp_association *asoc, __u16 key_id); +int sctp_auth_deact_key_id(struct sctp_endpoint *ep, + struct sctp_association *asoc, __u16 key_id); +int sctp_auth_init(struct sctp_endpoint *ep, gfp_t gfp); +void sctp_auth_free(struct sctp_endpoint *ep); #endif |