diff options
author | Erwin Nindl <nine@wirdorange.org> | 2007-06-22 13:59:20 +0000 |
---|---|---|
committer | Erwin Nindl <nine@wirdorange.org> | 2007-06-22 13:59:20 +0000 |
commit | 0275479cb56c7f562f3513fef66c83fc44d1d8c9 (patch) | |
tree | f6fbb703cebf62d18b05e2a5e7591ac08c5b6702 /srtp/crypto/include/key.h | |
parent | satp internet draft 00 final ietf version (diff) |
added libsrtp to svn
Diffstat (limited to 'srtp/crypto/include/key.h')
-rw-r--r-- | srtp/crypto/include/key.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/srtp/crypto/include/key.h b/srtp/crypto/include/key.h new file mode 100644 index 0000000..e7e0744 --- /dev/null +++ b/srtp/crypto/include/key.h @@ -0,0 +1,82 @@ +/* + * key.h + * + * key usage limits enforcement + * + * David A. Mcgrew + * Cisco Systems, Inc. + */ +/* + * + * Copyright (c) 2001-2006 Cisco Systems, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * + * Neither the name of the Cisco Systems, Inc. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef KEY_H +#define KEY_H + +#include "rdbx.h" /* for xtd_seq_num_t */ +#include "err.h" + +typedef struct key_limit_ctx_t *key_limit_t; + +typedef enum { + key_event_normal, + key_event_soft_limit, + key_event_hard_limit +} key_event_t; + +err_status_t +key_limit_set(key_limit_t key, const xtd_seq_num_t s); + +err_status_t +key_limit_clone(key_limit_t original, key_limit_t *new_key); + +err_status_t +key_limit_check(const key_limit_t key); + +key_event_t +key_limit_update(key_limit_t key); + +typedef enum { + key_state_normal, + key_state_past_soft_limit, + key_state_expired +} key_state_t; + +typedef struct key_limit_ctx_t { + xtd_seq_num_t num_left; + key_state_t state; +} key_limit_ctx_t; + +#endif /* KEY_H */ |