FreeCalypso > hg > gsm-codec-lib
annotate pcap/rtp-cont-check.c @ 181:3a0ee08a3b9d
doc/EFR-rationale: typo fix
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Mon, 02 Jan 2023 20:09:07 +0000 |
parents | 693a0958a303 |
children | 10f11a2d4042 |
rev | line source |
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1 /* |
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2 * This program reads a pcap file, extracts packets belonging to a |
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3 * particular RTP stream as identified by a source or destination |
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4 * IP:port, and checks its continuity: verifies that the sequence |
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5 * number always increments by 1 and that the timestamp always |
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6 * increments by 160 units. Finally, this program prints out |
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7 * the minimum and maximum observed capture time deltas between |
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8 * successive packets of the stream. |
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9 * |
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10 * The codec can be anything, and this program can also be used to |
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11 * check continuity of RTP streams coming from PSTN/SIP, but the |
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12 * core assumption is that packets must arrive every 20 ms, with |
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13 * the timestamp field incrementing by 160 units each time. |
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14 */ |
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15 |
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16 #include <sys/types.h> |
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17 #include <sys/socket.h> |
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18 #include <sys/time.h> |
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19 #include <netinet/in.h> |
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20 #include <arpa/inet.h> |
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21 #include <stdio.h> |
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22 #include <stdlib.h> |
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23 #include <string.h> |
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24 #include <strings.h> |
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25 #include <pcap/pcap.h> |
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26 |
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27 static pcap_t *pcap; |
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28 static in_addr_t match_ip_addr; |
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29 static u_short match_udp_port; |
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30 static unsigned iphdr_addr_offset, udphdr_port_offset; |
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31 static unsigned link_hdr_len, ethertype_offset; |
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32 static int stream_init_flag, deltat_init_flag; |
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33 static unsigned last_seq, last_tstamp, stream_ssrc; |
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34 static struct timeval last_pkt_time; |
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35 static unsigned deltat_min, deltat_max; |
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36 |
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37 static void |
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38 check_dl_type() |
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39 { |
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40 int dltype; |
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41 |
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42 dltype = pcap_datalink(pcap); |
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43 switch (dltype) { |
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44 case DLT_EN10MB: |
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45 link_hdr_len = 14; |
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46 ethertype_offset = 12; |
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47 break; |
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48 case DLT_RAW: |
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49 link_hdr_len = 0; |
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50 break; |
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51 case DLT_LINUX_SLL: |
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52 link_hdr_len = 16; |
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53 ethertype_offset = 14; |
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54 break; |
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55 default: |
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56 fprintf(stderr, "error: unsupported data link type %d\n", |
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57 dltype); |
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58 exit(1); |
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59 } |
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60 } |
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61 |
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62 static void |
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63 rtp_stream_logic(rtp_hdr, pkt_idx, pkt_time) |
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64 u_char *rtp_hdr; |
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65 unsigned pkt_idx; |
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66 struct timeval *pkt_time; |
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67 { |
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68 unsigned cur_seq, cur_tstamp, cur_ssrc; |
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69 struct timeval deltat; |
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70 |
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71 cur_seq = (rtp_hdr[2] << 8) | rtp_hdr[3]; |
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72 cur_tstamp = (rtp_hdr[4] << 24) | (rtp_hdr[5] << 16) | |
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73 (rtp_hdr[6] << 8) | rtp_hdr[7]; |
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74 cur_ssrc = (rtp_hdr[8] << 24) | (rtp_hdr[9] << 16) | |
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75 (rtp_hdr[10] << 8) | rtp_hdr[11]; |
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76 if (stream_init_flag) { |
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77 if (cur_ssrc != stream_ssrc) { |
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78 fprintf(stderr, |
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79 "error in packet #%u: SSRC change from 0x%08X to 0x%08X\n", |
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80 pkt_idx, stream_ssrc, cur_ssrc); |
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81 exit(1); |
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82 } |
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83 if (cur_seq != last_seq + 1) { |
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84 fprintf(stderr, |
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85 "error in packet #%u: seq break from 0x%04X to 0x%04X\n", |
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86 pkt_idx, last_seq, cur_seq); |
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87 exit(1); |
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88 } |
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89 if (cur_tstamp != last_tstamp + 160) { |
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90 fprintf(stderr, |
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91 "error in packet #%u: timestamp break from 0x%08X to 0x%08X\n", |
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92 pkt_idx, last_tstamp, cur_tstamp); |
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93 exit(1); |
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94 } |
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95 if (timercmp(pkt_time, &last_pkt_time, <)) { |
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96 fprintf(stderr, |
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97 "packet #%u timing error: Rx time goes backward\n", |
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98 pkt_idx); |
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99 exit(1); |
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100 } |
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101 timersub(pkt_time, &last_pkt_time, &deltat); |
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102 if (deltat.tv_sec) { |
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103 fprintf(stderr, |
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104 "packet #%u timing error: Rx time gap >= 1 s\n", |
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105 pkt_idx); |
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106 exit(1); |
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107 } |
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108 if (deltat_init_flag) { |
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109 if (deltat.tv_usec < deltat_min) |
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110 deltat_min = deltat.tv_usec; |
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111 if (deltat.tv_usec > deltat_max) |
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112 deltat_max = deltat.tv_usec; |
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113 } else { |
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yet another refactoring of RTP tools:
Mychaela Falconia <falcon@freecalypso.org>
parents:
171
diff
changeset
|
114 deltat_min = deltat.tv_usec; |
693a0958a303
yet another refactoring of RTP tools:
Mychaela Falconia <falcon@freecalypso.org>
parents:
171
diff
changeset
|
115 deltat_max = deltat.tv_usec; |
693a0958a303
yet another refactoring of RTP tools:
Mychaela Falconia <falcon@freecalypso.org>
parents:
171
diff
changeset
|
116 deltat_init_flag = 1; |
693a0958a303
yet another refactoring of RTP tools:
Mychaela Falconia <falcon@freecalypso.org>
parents:
171
diff
changeset
|
117 } |
15
851ca64e38e9
rtp-gsmfr-extr program written, compiles
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parents:
diff
changeset
|
118 } else { |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
119 stream_init_flag = 1; |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
120 stream_ssrc = cur_ssrc; |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
121 } |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
122 last_seq = cur_seq; |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
123 last_tstamp = cur_tstamp; |
170
b9af126bfddb
rtp-cont-check utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
15
diff
changeset
|
124 bcopy(pkt_time, &last_pkt_time, sizeof(struct timeval)); |
15
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
125 } |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
126 |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
127 static void |
170
b9af126bfddb
rtp-cont-check utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
15
diff
changeset
|
128 process_packet(pkt, caplen, pkt_idx, pkt_time) |
15
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
129 u_char *pkt; |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
130 unsigned caplen, pkt_idx; |
170
b9af126bfddb
rtp-cont-check utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
15
diff
changeset
|
131 struct timeval *pkt_time; |
15
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
132 { |
170
b9af126bfddb
rtp-cont-check utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
15
diff
changeset
|
133 unsigned udplen; |
15
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
134 |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
135 if (caplen < link_hdr_len + 28) |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
136 return; |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
137 if (link_hdr_len) { |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
138 if (pkt[ethertype_offset] != 0x08) |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
139 return; |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
140 if (pkt[ethertype_offset+1] != 0x00) |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
141 return; |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
142 pkt += link_hdr_len; |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
143 caplen -= link_hdr_len; |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
144 } |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
145 /* check IP header */ |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
146 if (pkt[0] != 0x45) |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
147 return; |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
148 if (pkt[9] != 17) /* UDP */ |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
149 return; |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
150 if (bcmp(pkt + iphdr_addr_offset, &match_ip_addr, 4)) |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
151 return; |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
152 /* check UDP header */ |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
153 if (bcmp(pkt + 20 + udphdr_port_offset, &match_udp_port, 2)) |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
154 return; |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
155 /* it is our target - now scrutinize it */ |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
156 udplen = (pkt[24] << 8) | pkt[25]; |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
157 if (caplen < udplen + 20) { |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
158 fprintf(stderr, |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
159 "error: packet #%u is truncated in the capture\n", |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
160 pkt_idx); |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
161 exit(1); |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
162 } |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
163 if (udplen < 20) { |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
164 fprintf(stderr, |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
165 "error in packet #%u: UDP length is too short for RTP header\n", |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
166 pkt_idx); |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
167 exit(1); |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
168 } |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
169 if (pkt[28] != 0x80) { |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
170 fprintf(stderr, |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
171 "error in packet #%u: unsupported RTP header structure\n", |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
172 pkt_idx); |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
173 exit(1); |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
174 } |
170
b9af126bfddb
rtp-cont-check utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
15
diff
changeset
|
175 rtp_stream_logic(pkt + 28, pkt_idx, pkt_time); |
15
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
176 } |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
177 |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
178 main(argc, argv) |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
179 char **argv; |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
180 { |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
181 char errbuf[PCAP_ERRBUF_SIZE]; |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
182 u_char *pkt; |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
183 struct pcap_pkthdr pkthdr; |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
184 unsigned pkt_idx; |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
185 |
170
b9af126bfddb
rtp-cont-check utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
15
diff
changeset
|
186 if (argc != 5) { |
15
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
187 fprintf(stderr, |
170
b9af126bfddb
rtp-cont-check utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
15
diff
changeset
|
188 "usage: %s pcap-file src|dest ip-addr udp-port\n", |
15
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
189 argv[0]); |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
190 exit(1); |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
191 } |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
192 pcap = pcap_open_offline(argv[1], errbuf); |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
193 if (!pcap) { |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
194 fprintf(stderr, "%s: %s\n", argv[1], errbuf); |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
195 exit(1); |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
196 } |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
197 check_dl_type(); |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
198 if (!strcmp(argv[2], "src")) { |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
199 iphdr_addr_offset = 12; |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
200 udphdr_port_offset = 0; |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
201 } else if (!strcmp(argv[2], "dest")) { |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
202 iphdr_addr_offset = 16; |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
203 udphdr_port_offset = 2; |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
204 } else { |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
205 fprintf(stderr, |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
206 "error: direction argument must be \"src\" or \"dest\"\n"); |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
207 exit(1); |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
208 } |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
209 match_ip_addr = inet_addr(argv[3]); |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
210 if (match_ip_addr == INADDR_NONE) { |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
211 fprintf(stderr, "error: IP address argument is invalid\n"); |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
212 exit(1); |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
213 } |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
214 match_udp_port = htons(strtoul(argv[4], 0, 0)); |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
215 for (pkt_idx = 0; ; pkt_idx++) { |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
216 pkt = pcap_next(pcap, &pkthdr); |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
217 if (!pkt) |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
218 break; |
170
b9af126bfddb
rtp-cont-check utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
15
diff
changeset
|
219 process_packet(pkt, (unsigned) pkthdr.caplen, pkt_idx, |
b9af126bfddb
rtp-cont-check utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
15
diff
changeset
|
220 &pkthdr.ts); |
15
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
221 } |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
222 if (!stream_init_flag) { |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
223 fprintf(stderr, "error: specified RTP stream not found\n"); |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
224 exit(1); |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
225 } |
172
693a0958a303
yet another refactoring of RTP tools:
Mychaela Falconia <falcon@freecalypso.org>
parents:
171
diff
changeset
|
226 if (!deltat_init_flag) { |
693a0958a303
yet another refactoring of RTP tools:
Mychaela Falconia <falcon@freecalypso.org>
parents:
171
diff
changeset
|
227 fprintf(stderr, "error: found only one matching packet\n"); |
693a0958a303
yet another refactoring of RTP tools:
Mychaela Falconia <falcon@freecalypso.org>
parents:
171
diff
changeset
|
228 exit(1); |
693a0958a303
yet another refactoring of RTP tools:
Mychaela Falconia <falcon@freecalypso.org>
parents:
171
diff
changeset
|
229 } |
693a0958a303
yet another refactoring of RTP tools:
Mychaela Falconia <falcon@freecalypso.org>
parents:
171
diff
changeset
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230 printf("Minimum time delta: %u us\n", deltat_min); |
693a0958a303
yet another refactoring of RTP tools:
Mychaela Falconia <falcon@freecalypso.org>
parents:
171
diff
changeset
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231 printf("Maximum time delta: %u us\n", deltat_max); |
15
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
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232 exit(0); |
851ca64e38e9
rtp-gsmfr-extr program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
233 } |