diff options
Diffstat (limited to 'netwerk/srtp/src/test/rtp_decoder.h')
-rw-r--r-- | netwerk/srtp/src/test/rtp_decoder.h | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/netwerk/srtp/src/test/rtp_decoder.h b/netwerk/srtp/src/test/rtp_decoder.h new file mode 100644 index 0000000000..c8c31dd773 --- /dev/null +++ b/netwerk/srtp/src/test/rtp_decoder.h @@ -0,0 +1,105 @@ +/* + * rtp_decoder.h + * + * decoder structures and functions for SRTP pcap decoder + * + * Bernardo Torres <bernardo@torresautomacao.com.br> + * + * Some structure and code from https://github.com/gteissier/srtp-decrypt + * + */ +/* + * + * Copyright (c) 2001-2017 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 RTP_DECODER_H +#define RTP_DECODER_H + +#include "srtp_priv.h" +#include "rtp.h" + +#define DEFAULT_RTP_OFFSET 42 + +typedef struct rtp_decoder_ctx_t { + srtp_policy_t policy; + srtp_ctx_t *srtp_ctx; + int rtp_offset; + struct timeval start_tv; + int frame_nr; + rtp_msg_t message; +} rtp_decoder_ctx_t; + +typedef struct rtp_decoder_ctx_t *rtp_decoder_t; + +/* + * error to string + */ +void rtp_print_error(srtp_err_status_t status, char *message); + +/* + * prints the output of a random buffer in hexadecimal + */ +void hexdump(const void *ptr, size_t size); + +/* + * the function usage() prints an error message describing how this + * program should be called, then calls exit() + */ +void usage(char *prog_name); + +/* + * transforms base64 key into octet + */ +char *decode_sdes(char *in, char *out); + +/* + * pcap handling + */ +void rtp_decoder_handle_pkt(u_char *arg, + const struct pcap_pkthdr *hdr, + const u_char *bytes); + +rtp_decoder_t rtp_decoder_alloc(void); + +void rtp_decoder_dealloc(rtp_decoder_t rtp_ctx); + +int rtp_decoder_init(rtp_decoder_t dcdr, srtp_policy_t policy); + +srtp_err_status_t rtp_decoder_init_srtp(rtp_decoder_t decoder, + unsigned int ssrc); + +int rtp_decoder_deinit_srtp(rtp_decoder_t decoder); + +#endif /* RTP_DECODER_H */ |