~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/include/net/sctp/auth.h

Version: ~ [ linux-5.10-rc5 ] ~ [ linux-5.9.10 ] ~ [ linux-5.8.18 ] ~ [ linux-5.7.19 ] ~ [ linux-5.6.19 ] ~ [ linux-5.5.19 ] ~ [ linux-5.4.79 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.159 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.208 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.245 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.245 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.140 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.85 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 /* SCTP kernel implementation
  2  * (C) Copyright 2007 Hewlett-Packard Development Company, L.P.
  3  *
  4  * This file is part of the SCTP kernel implementation
  5  *
  6  * This SCTP implementation is free software;
  7  * you can redistribute it and/or modify it under the terms of
  8  * the GNU General Public License as published by
  9  * the Free Software Foundation; either version 2, or (at your option)
 10  * any later version.
 11  *
 12  * This SCTP implementation is distributed in the hope that it
 13  * will be useful, but WITHOUT ANY WARRANTY; without even the implied
 14  *                 ************************
 15  * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 16  * See the GNU General Public License for more details.
 17  *
 18  * You should have received a copy of the GNU General Public License
 19  * along with GNU CC; see the file COPYING.  If not, see
 20  * <http://www.gnu.org/licenses/>.
 21  *
 22  * Please send any bug reports or fixes you make to the
 23  * email address(es):
 24  *    lksctp developers <linux-sctp@vger.kernel.org>
 25  *
 26  * Written or modified by:
 27  *   Vlad Yasevich     <vladislav.yasevich@hp.com>
 28  */
 29 
 30 #ifndef __sctp_auth_h__
 31 #define __sctp_auth_h__
 32 
 33 #include <linux/list.h>
 34 #include <linux/refcount.h>
 35 
 36 struct sctp_endpoint;
 37 struct sctp_association;
 38 struct sctp_authkey;
 39 struct sctp_hmacalgo;
 40 struct crypto_shash;
 41 
 42 /*
 43  * Define a generic struct that will hold all the info
 44  * necessary for an HMAC transform
 45  */
 46 struct sctp_hmac {
 47         __u16 hmac_id;          /* one of the above ids */
 48         char *hmac_name;        /* name for loading */
 49         __u16 hmac_len;         /* length of the signature */
 50 };
 51 
 52 /* This is generic structure that containst authentication bytes used
 53  * as keying material.  It's a what is referred to as byte-vector all
 54  * over SCTP-AUTH
 55  */
 56 struct sctp_auth_bytes {
 57         refcount_t refcnt;
 58         __u32 len;
 59         __u8  data[];
 60 };
 61 
 62 /* Definition for a shared key, weather endpoint or association */
 63 struct sctp_shared_key {
 64         struct list_head key_list;
 65         struct sctp_auth_bytes *key;
 66         refcount_t refcnt;
 67         __u16 key_id;
 68         __u8 deactivated;
 69 };
 70 
 71 #define key_for_each(__key, __list_head) \
 72         list_for_each_entry(__key, __list_head, key_list)
 73 
 74 #define key_for_each_safe(__key, __tmp, __list_head) \
 75         list_for_each_entry_safe(__key, __tmp, __list_head, key_list)
 76 
 77 static inline void sctp_auth_key_hold(struct sctp_auth_bytes *key)
 78 {
 79         if (!key)
 80                 return;
 81 
 82         refcount_inc(&key->refcnt);
 83 }
 84 
 85 void sctp_auth_key_put(struct sctp_auth_bytes *key);
 86 struct sctp_shared_key *sctp_auth_shkey_create(__u16 key_id, gfp_t gfp);
 87 void sctp_auth_destroy_keys(struct list_head *keys);
 88 int sctp_auth_asoc_init_active_key(struct sctp_association *asoc, gfp_t gfp);
 89 struct sctp_shared_key *sctp_auth_get_shkey(
 90                                 const struct sctp_association *asoc,
 91                                 __u16 key_id);
 92 int sctp_auth_asoc_copy_shkeys(const struct sctp_endpoint *ep,
 93                                 struct sctp_association *asoc,
 94                                 gfp_t gfp);
 95 int sctp_auth_init_hmacs(struct sctp_endpoint *ep, gfp_t gfp);
 96 void sctp_auth_destroy_hmacs(struct crypto_shash *auth_hmacs[]);
 97 struct sctp_hmac *sctp_auth_get_hmac(__u16 hmac_id);
 98 struct sctp_hmac *sctp_auth_asoc_get_hmac(const struct sctp_association *asoc);
 99 void sctp_auth_asoc_set_default_hmac(struct sctp_association *asoc,
100                                      struct sctp_hmac_algo_param *hmacs);
101 int sctp_auth_asoc_verify_hmac_id(const struct sctp_association *asoc,
102                                     __be16 hmac_id);
103 int sctp_auth_send_cid(enum sctp_cid chunk,
104                        const struct sctp_association *asoc);
105 int sctp_auth_recv_cid(enum sctp_cid chunk,
106                        const struct sctp_association *asoc);
107 void sctp_auth_calculate_hmac(const struct sctp_association *asoc,
108                               struct sk_buff *skb, struct sctp_auth_chunk *auth,
109                               struct sctp_shared_key *ep_key, gfp_t gfp);
110 void sctp_auth_shkey_release(struct sctp_shared_key *sh_key);
111 void sctp_auth_shkey_hold(struct sctp_shared_key *sh_key);
112 
113 /* API Helpers */
114 int sctp_auth_ep_add_chunkid(struct sctp_endpoint *ep, __u8 chunk_id);
115 int sctp_auth_ep_set_hmacs(struct sctp_endpoint *ep,
116                             struct sctp_hmacalgo *hmacs);
117 int sctp_auth_set_key(struct sctp_endpoint *ep, struct sctp_association *asoc,
118                       struct sctp_authkey *auth_key);
119 int sctp_auth_set_active_key(struct sctp_endpoint *ep,
120                              struct sctp_association *asoc, __u16 key_id);
121 int sctp_auth_del_key_id(struct sctp_endpoint *ep,
122                          struct sctp_association *asoc, __u16 key_id);
123 int sctp_auth_deact_key_id(struct sctp_endpoint *ep,
124                            struct sctp_association *asoc, __u16 key_id);
125 
126 #endif
127 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp