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diff --git a/srtp/include/srtp_priv.h b/srtp/include/srtp_priv.h
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-/*
- * srtp_priv.h
- *
- * private internal data structures and functions for libSRTP
- *
- * 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 SRTP_PRIV_H
-#define SRTP_PRIV_H
-
-#include "srtp.h"
-#include "rdbx.h"
-#include "rdb.h"
-#include "integers.h"
-
-/*
- * an srtp_hdr_t represents the srtp header
- *
- * in this implementation, an srtp_hdr_t is assumed to be 32-bit aligned
- *
- * (note that this definition follows that of RFC 1889 Appendix A, but
- * is not identical)
- */
-
-#ifndef WORDS_BIGENDIAN
-
-/*
- * srtp_hdr_t represents an RTP or SRTP header. The bit-fields in
- * this structure should be declared "unsigned int" instead of
- * "unsigned char", but doing so causes the MS compiler to not
- * fully pack the bit fields.
- */
-
-typedef struct {
- unsigned char cc:4; /* CSRC count */
- unsigned char x:1; /* header extension flag */
- unsigned char p:1; /* padding flag */
- unsigned char version:2; /* protocol version */
- unsigned char pt:7; /* payload type */
- unsigned char m:1; /* marker bit */
- uint16_t seq; /* sequence number */
- uint32_t ts; /* timestamp */
- uint32_t ssrc; /* synchronization source */
-} srtp_hdr_t;
-
-#else /* BIG_ENDIAN */
-
-typedef struct {
- unsigned char version:2; /* protocol version */
- unsigned char p:1; /* padding flag */
- unsigned char x:1; /* header extension flag */
- unsigned char cc:4; /* CSRC count */
- unsigned char m:1; /* marker bit */
- unsigned pt:7; /* payload type */
- uint16_t seq; /* sequence number */
- uint32_t ts; /* timestamp */
- uint32_t ssrc; /* synchronization source */
-} srtp_hdr_t;
-
-#endif
-
-typedef struct {
- uint16_t profile_specific; /* profile-specific info */
- uint16_t length; /* number of 32-bit words in extension */
-} srtp_hdr_xtnd_t;
-
-
-/*
- * srtcp_hdr_t represents a secure rtcp header
- *
- * in this implementation, an srtcp header is assumed to be 32-bit
- * alinged
- */
-
-#ifndef WORDS_BIGENDIAN
-
-typedef struct {
- unsigned char rc:5; /* reception report count */
- unsigned char p:1; /* padding flag */
- unsigned char version:2; /* protocol version */
- unsigned char pt:8; /* payload type */
- uint16_t len; /* length */
- uint32_t ssrc; /* synchronization source */
-} srtcp_hdr_t;
-
-typedef struct {
- unsigned int index:31; /* srtcp packet index in network order! */
- unsigned int e:1; /* encrypted? 1=yes */
- /* optional mikey/etc go here */
- /* and then the variable-length auth tag */
-} srtcp_trailer_t;
-
-
-#else /* BIG_ENDIAN */
-
-typedef struct {
- unsigned char version:2; /* protocol version */
- unsigned char p:1; /* padding flag */
- unsigned char rc:5; /* reception report count */
- unsigned char pt:8; /* payload type */
- uint16_t len; /* length */
- uint32_t ssrc; /* synchronization source */
-} srtcp_hdr_t;
-
-typedef struct {
- unsigned int version:2; /* protocol version */
- unsigned int p:1; /* padding flag */
- unsigned int count:5; /* varies by packet type */
- unsigned int pt:8; /* payload type */
- uint16_t length; /* len of uint32s of packet less header */
-} rtcp_common_t;
-
-typedef struct {
- unsigned int e:1; /* encrypted? 1=yes */
- unsigned int index:31; /* srtcp packet index */
- /* optional mikey/etc go here */
- /* and then the variable-length auth tag */
-} srtcp_trailer_t;
-
-#endif
-
-
-/*
- * the following declarations are libSRTP internal functions
- */
-
-/*
- * srtp_get_stream(ssrc) returns a pointer to the stream corresponding
- * to ssrc, or NULL if no stream exists for that ssrc
- */
-
-srtp_stream_t
-srtp_get_stream(srtp_t srtp, uint32_t ssrc);
-
-
-/*
- * srtp_stream_init_keys(s, k) (re)initializes the srtp_stream_t s by
- * deriving all of the needed keys using the KDF and the key k.
- */
-
-
-err_status_t
-srtp_stream_init_keys(srtp_stream_t srtp, const void *key);
-
-/*
- * libsrtp internal datatypes
- */
-
-typedef enum direction_t {
- dir_unknown = 0,
- dir_srtp_sender = 1,
- dir_srtp_receiver = 2
-} direction_t;
-
-/*
- * an srtp_stream_t has its own SSRC, encryption key, authentication
- * key, sequence number, and replay database
- *
- * note that the keys might not actually be unique, in which case the
- * cipher_t and auth_t pointers will point to the same structures
- */
-
-typedef struct srtp_stream_ctx_t {
- uint32_t ssrc;
- cipher_t *rtp_cipher;
- auth_t *rtp_auth;
- rdbx_t rtp_rdbx;
- sec_serv_t rtp_services;
- cipher_t *rtcp_cipher;
- auth_t *rtcp_auth;
- rdb_t rtcp_rdb;
- sec_serv_t rtcp_services;
- key_limit_ctx_t *limit;
- direction_t direction;
- struct srtp_stream_ctx_t *next; /* linked list of streams */
-} srtp_stream_ctx_t;
-
-
-/*
- * an srtp_ctx_t holds a stream list and a service description
- */
-
-typedef struct srtp_ctx_t {
- srtp_stream_ctx_t *stream_list; /* linked list of streams */
- srtp_stream_ctx_t *stream_template; /* act as template for other streams */
-} srtp_ctx_t;
-
-
-
-/*
- * srtp_handle_event(srtp, srtm, evnt) calls the event handling
- * function, if there is one.
- *
- * This macro is not included in the documentation as it is
- * an internal-only function.
- */
-
-#define srtp_handle_event(srtp, strm, evnt) \
- if(srtp_event_handler) { \
- srtp_event_data_t data; \
- data.session = srtp; \
- data.stream = strm; \
- data.event = evnt; \
- srtp_event_handler(&data); \
-}
-
-
-#endif /* SRTP_PRIV_H */