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tsdecrypt.c
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tsdecrypt.c
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/*
* tsdecrypt
* Copyright (C) 2011-2012 Unix Solutions Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License (COPYING file) for more details.
*
*/
#include <stdlib.h>
#include <unistd.h>
#include <getopt.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <signal.h>
#include <fcntl.h>
#include <errno.h>
#include <syslog.h>
#include <sys/resource.h>
#include "libfuncs/libfuncs.h"
#include "data.h"
#include "util.h"
#include "csa.h"
#include "camd.h"
#include "process.h"
#include "udp.h"
#include "notify.h"
#include "filter.h"
#define FIRST_REPORT_SEC 3
#define PROGRAM_NAME "tsdecrypt"
static const char *program_id = PROGRAM_NAME " v" VERSION " (" GIT_VER ", " DLIB ")";
int keep_running = 1;
static FILE *log_file = NULL;
static char *log_filename = NULL;
static int local_syslog = 0;
static int remote_syslog = 0;
static int packet_from_file = 0;
static int packet_buflen;
static uint8_t packet_buf[256];
static enum msg_type packet_type = ECM_MSG;
extern int ai_family;
static void do_log(FILE *f, time_t now, const char *msg) {
char date[64];
struct tm tm;
// There is no need to show timestamps when debug options are used
if (packet_from_file) {
fprintf(f, "%s", msg);
return;
}
localtime_r(&now, &tm);
strftime(date, sizeof(date), "%F %H:%M:%S", localtime_r(&now, &tm));
fprintf(f, "%s | %s", date, msg);
}
static void LOG_func(const char *msg) {
time_t now = time(NULL);
do_log(stderr, now, msg);
if (log_file)
do_log(log_file, now, msg);
if (local_syslog)
syslog(LOG_INFO, msg, strlen(msg));
if (remote_syslog)
LOG(msg);
}
static const char short_options[] = "i:d:N:90:Sl:L:F:I:1:RzM:T:W:O:o:t:rk:g:upwx3yc:C:Y:Q:A:s:U:P:B:46eZ:Ef:a:X:vqH:G:2:KJ:D:jbhVn:m:";
// Unused short options: 578
static const struct option long_options[] = {
{ "ident", required_argument, NULL, 'i' },
{ "daemon", required_argument, NULL, 'd' },
{ "syslog", no_argument, NULL, 'S' },
{ "syslog-host", required_argument, NULL, 'l' },
{ "syslog-port", required_argument, NULL, 'L' },
{ "log-file", required_argument, NULL, 'F' },
{ "notify-program", required_argument, NULL, 'N' },
{ "notify-wait", no_argument, NULL, '9' },
{ "status-file", required_argument, NULL, '0' },
{ "input", required_argument, NULL, 'I' },
{ "input-source", required_argument, NULL, '1' },
{ "input-rtp", no_argument, NULL, 'R' },
{ "input-ignore-disc", no_argument, NULL, 'z' },
{ "input-service", required_argument, NULL, 'M' },
{ "input-buffer", required_argument, NULL, 'T' },
{ "input-dump", required_argument, NULL, 'W' },
{ "output", required_argument, NULL, 'O' },
{ "output-intf", required_argument, NULL, 'o' },
{ "output-ttl", required_argument, NULL, 't' },
{ "output-rtp", no_argument, NULL, 'r' },
{ "output-rtp-ssrc", required_argument, NULL, 'k' },
{ "output-tos", required_argument, NULL, 'g' },
{ "no-output-on-error", no_argument, NULL, 'u' },
{ "no-output-filter", no_argument, NULL, 'p' },
{ "output-nit-pass", no_argument, NULL, 'y' },
{ "output-eit-pass", no_argument, NULL, 'w' },
{ "output-tdt-pass", no_argument, NULL, 'x' },
{ "output-enc-pass", no_argument, NULL, '3' },
{ "ca-system", required_argument, NULL, 'c' },
{ "caid", required_argument, NULL, 'C' },
{ "const-cw", required_argument, NULL, 'Y' },
{ "biss-key", required_argument, NULL, 'Q' },
{ "camd-proto", required_argument, NULL, 'A' },
{ "camd-server", required_argument, NULL, 's' },
{ "camd-user", required_argument, NULL, 'U' },
{ "camd-pass", required_argument, NULL, 'P' },
{ "camd-des-key", required_argument, NULL, 'B' },
{ "ipv4", no_argument, NULL, '4' },
{ "ipv6", no_argument, NULL, '6' },
{ "emm", no_argument, NULL, 'e' },
{ "emm-pid", required_argument, NULL, 'Z' },
{ "emm-only", no_argument, NULL, 'E' },
{ "emm-report-time", required_argument, NULL, 'f' },
{ "emm-filter", required_argument, NULL, 'a' },
{ "ecm-pid", required_argument, NULL, 'X' },
{ "ecm-only", no_argument, NULL, 'v' },
{ "ecm-report-time", required_argument, NULL, 'H' },
{ "ecm-irdeto-type", required_argument, NULL, 'G' },
{ "ecm-irdeto-chid", required_argument, NULL, '2' },
{ "ecm-no-log", no_argument , NULL, 'K' },
{ "cw-warn-time", required_argument, NULL, 'J' },
{ "ecm-and-emm-only", no_argument, NULL, 'q' },
{ "debug", required_argument, NULL, 'D' },
{ "pid-report", no_argument, NULL, 'j' },
{ "bench", no_argument, NULL, 'b' },
{ "help", no_argument, NULL, 'h' },
{ "version", no_argument, NULL, 'V' },
{ "ecm-file", required_argument, NULL, 'n' },
{ "emm-file", required_argument, NULL, 'm' },
{ 0, 0, 0, 0 }
};
static void show_help(struct ts *ts) {
printf("%s\n", program_id);
printf("Copyright (C) 2011-2012 Unix Solutions Ltd.\n");
printf("\n");
printf(" Usage: " PROGRAM_NAME " [opts]\n");
printf("\n");
printf("Main options:\n");
printf(" -i --ident <server> | Format PROVIDER/CHANNEL. Default: empty\n");
printf(" -d --daemon <pidfile> | Daemonize program and write pid file.\n");
printf(" -N --notify-program <prg> | Execute <prg> to report events. Default: empty\n");
printf(" -9 --notify-wait | Enable one by one notification delivery.\n");
printf(" . Default: not set (async, deliver ASAP)\n");
printf(" -0 --status-file <file> | Save current program status in file.\n");
printf("\n");
printf("Input options:\n");
printf(" -I --input <source> | Where to read from. File or multicast address.\n");
printf(" . -I 224.0.0.1:5000 (v4 multicast)\n");
printf(" . -I [ff01::1111]:5000 (v6 multicast)\n");
printf(" . -I file://in.ts (read from file)\n");
printf(" . By default the input is stdin.\n");
printf(" -1 --input-source <ipaddr> | Set multicast input source ip.\n");
printf(" -R --input-rtp | Enable RTP input\n");
printf(" -z --input-ignore-disc | Do not report discontinuty errors in input.\n");
printf(" -M --input-service <srvid> | Choose service id when input is MPTS.\n");
printf(" -T --input-buffer <ms> | Set input buffer time in ms. Default: %u\n", ts->input_buffer_time);
printf(" -W --input-dump <filename> | Save input stream in file.\n");
printf("\n");
printf("Output options:\n");
printf(" -O --output <dest> | Where to send output. File or multicast address.\n");
printf(" . -O 239.0.0.1:5000 (v4 multicast)\n");
printf(" . -O [ff01::2222]:5000 (v6 multicast)\n");
printf(" . -O file://out.ts (write to file)\n");
printf(" . By default the output is stdout.\n");
printf(" -o --output-intf <value> | Set multicast output interface.\n");
printf(" . Default for IPv4: 0.0.0.0 (intf addr)\n");
printf(" . Default for IPv6: -1 (intf number)\n");
printf(" -t --output-ttl <ttl> | Set multicast ttl. Default: %d\n", ts->output.ttl);
printf(" -r --output-rtp | Enable RTP output.\n");
printf(" -k --output-rtp-ssrc <id> | Set RTP SSRC. Default: %u\n", ts->rtp_ssrc);
printf(" -g --output-tos <tos> | Set TOS value of output packets. Default: none\n");
printf(" -u --no-output-on-error | Do not output data when the code word is missing.\n");
printf(" -p --no-output-filter | Disable output filtering. Default: %s\n", ts->pid_filter ? "enabled" : "disabled");
printf(" -3 --output-enc-pass | Output the stream even if can not be decrypted.\n");
printf(" -y --output-nit-pass | Pass through NIT.\n");
printf(" -w --output-eit-pass | Pass through EIT (EPG).\n");
printf(" -x --output-tdt-pass | Pass through TDT/TOT.\n");
printf("\n");
printf("CA options:\n");
printf(" -c --ca-system <ca_sys> | Process input EMM/ECM from <ca_sys>.\n");
printf(" | Valid systems are: CONAX (default), CRYPTOWORKS,\n");
printf(" . IRDETO, SECA (MEDIAGUARD), VIACCESS,\n");
printf(" . VIDEOGUARD (NDS), NAGRA, DRECRYPT, BULCRYPT,\n");
printf(" . GRIFFIN and DGCRYPT.\n");
printf(" -C --caid <caid> | Set CAID. Default: Taken from --ca-system.\n");
printf(" -Y --const-cw <codeword> | Set constant code word for decryption.\n");
printf(" . Example cw: a1a2a3a4a5a6a7a8b1b2b3b4b5b6b7b8\n");
printf(" -Q --biss-key <biss-key> | Set BISS key for decryption.\n");
printf(" . Example key: 112233445566\n");
printf("\n");
printf("CAMD server options:\n");
printf(" -A --camd-proto <proto> | Set CAMD network protocol.\n");
printf(" . Valid protocols are: CS378X (default) and NEWCAMD\n");
printf(" -s --camd-server <host> | Set CAMD server address. Default port: 2233\n");
printf(" . Example IPv4 addr and port: 127.0.0.1:2233\n");
printf(" . Example IPv6 addr and port: [2a00::1014]:2233\n");
printf(" . Example hostname : example.com\n");
printf(" . Example hostname and port : example.com:2233\n");
printf(" . Example IPv4 hostname : ipv4.google.com\n");
printf(" . Example IPv6 hostname : ipv6.google.com\n");
printf(" -U --camd-user <user> | Set CAMD server user. Default: %s\n", ts->camd.user);
printf(" -P --camd-pass <pass> | Set CAMD server password. Default: %s\n", ts->camd.pass);
printf(" -B --camd-des-key <key> | Set DES key for newcamd protocol.\n");
printf(" . Default: %s\n", ts->camd.newcamd.hex_des_key);
printf(" -4 --ipv4 | Use only IPv4 addresses of the camd server.\n");
printf(" -6 --ipv6 | Use only IPv6 addresses of the camd server.\n");
printf("\n");
printf("EMM options:\n");
printf(" -e --emm | Enable sending EMM's to CAMD. Default: %s\n", ts->process_emm ? "enabled" : "disabled");
printf(" -E --emm-only | Send only EMMs to CAMD, skipping ECMs and without\n");
printf(" . decoding the input stream.\n");
printf(" -Z --emm-pid <pid> | Force EMM pid. Default: none\n");
printf(" -f --emm-report-time <sec> | Report each <sec> seconds how much EMMs have been\n");
printf(" . received/processed. Set <sec> to 0 to disable\n");
printf(" . the reports. Default: %d sec\n", ts->emm_report_interval);
printf(" -a --emm-filter <filter> | Add EMM filter defined by <filter>.\n");
printf(" . This option can be used multiple times (max:%u).\n", MAX_FILTERS);
printf(" . See FILTERING file for more info.\n");
printf("\n");
printf("ECM options:\n");
printf(" -X --ecm-pid <pid> | Force ECM pid. Default: none\n");
printf(" -v --ecm-only | Send only ECMs to CAMD, skipping EMMs and without\n");
printf(" . decoding the input stream.\n");
printf(" -H --ecm-report-time <sec> | Report each <sec> how much ECMs and CWs have been\n");
printf(" . processed/skipped. Set <sec> to 0 to disable\n");
printf(" . the reports. Default: %d sec\n", ts->ecm_report_interval);
printf(" -G --ecm-irdeto-type <int> | Process IRDETO ECMs with index X /0-255/\n");
printf(" . It is better to use --ecm-irdeto-chid option!\n");
printf(" -2 --ecm-irdeto-chid <int> | Set CHID to filter Irdeto ECMs (Default: 0x0000).\n");
printf(" -K --ecm-no-log | Disable ECM and code words logging.\n");
printf(" -J --cw-warn-time <sec> | Warn if no valid code word has been received.\n");
printf(" . Set <sec> to 0 to disable. Default: %d sec\n", ts->cw_warn_sec);
printf("\n");
printf(" -q --ecm-and-emm-only | Send ECMs and EMMs to CAMD but do not decode\n");
printf(" . the input stream.\n");
printf("\n");
printf("Logging options:\n");
printf(" -S --syslog | Log messages using syslog.\n");
printf(" -l --syslog-host <host> | Syslog server address. Default: disabled\n");
printf(" -L --syslog-port <port> | Syslog server port. Default: %d\n", ts->syslog_port);
printf(" -F --log-file <filename> | Log to file <filename>.\n");
printf(" -D --debug <level> | Message debug level.\n");
printf(" . 0 = default messages\n");
printf(" . 1 = show PSI tables\n");
printf(" . 2 = show EMMs\n");
printf(" . 3 = show duplicate ECMs\n");
printf(" . 4 = packet debug\n");
printf(" . 5 = packet debug + packet dump\n");
printf("\n");
printf("Debugging options:\n");
printf(" -n --ecm-file <file.txt> | Read ECM from text file.\n");
printf(" -m --emm-file <file.txt> | Read EMM from text file.\n");
printf("\n");
printf("Misc options:\n");
printf(" -j --pid-report | Report how much packets were received.\n");
printf(" -b --bench | Benchmark decrypton.\n");
printf(" -h --help | Show help screen.\n");
printf(" -V --version | Show program version.\n");
printf("\n");
}
static int parse_io_param(struct io *io, char *opt, int open_flags, mode_t open_mode) {
int port_set = 0, host_set;
io->type = WTF_IO;
if (strstr(opt, "file://") == opt) {
io->fname = opt + 7; // strlen("file://")
io->type = FILE_IO;
} else if (strchr(opt, '/')) {
io->fname = opt;
io->type = FILE_IO;
}
if (io->type == FILE_IO) {
io->fd = open(io->fname, open_flags, open_mode);
if (io->fd < 0) {
fprintf(stderr, "ERROR: Can not open file (%s): %s\n", io->fname, strerror(errno));
exit(EXIT_FAILURE);
}
return 1;
}
io->type = NET_IO;
host_set = parse_host_and_port(opt, &io->hostname, &io->service, &port_set);
return !(!port_set || !host_set);
}
static void parse_options(struct ts *ts, int argc, char **argv) {
int j, i, ca_err = 0, server_err = 1, input_addr_err = 0, output_addr_err = 0, ident_err = 0, port_set = 0;
while ((j = getopt_long(argc, argv, short_options, long_options, NULL)) != -1) {
if (j == '?')
exit(EXIT_FAILURE);
switch (j) {
case 'i': // -- ident
ts->ident = optarg;
break;
case 'd': // --daemon
ts->pidfile = optarg;
break;
case 'N': // --notify-program
ts->notify_program = optarg;
break;
case '9': // --notify-wait
ts->notify_wait = !ts->notify_wait;
break;
case '0': // --status-file
ts->status_file = optarg;
ts->status_file_tmp = calloc(1, strlen(optarg) + 16);
snprintf(ts->status_file_tmp, strlen(optarg) + 16, "%s.tmp", optarg);
break;
case 'S': // --syslog
ts->syslog_active = 1;
ts->syslog_remote = 0;
break;
case 'l': // --syslog-host
ts->syslog_host = optarg;
ts->syslog_active = 1;
ts->syslog_remote = 1;
break;
case 'L': // --syslog-port
ts->syslog_port = atoi(optarg);
break;
case 'F': // --log-file
log_filename = optarg;
break;
case 'I': // --input
input_addr_err = !parse_io_param(&ts->input, optarg, O_RDONLY, 0);
break;
case '1': // --input-source
if (!inet_aton(optarg, &ts->input.isrc)) {
fprintf(stderr, "ERROR: Can't parse input-source IP address: %s\n", optarg);
exit(EXIT_FAILURE);
}
break;
case 'R': // --input-rtp
ts->rtp_input = !ts->rtp_input;
break;
case 'z': // --input-ignore-disc
ts->ts_discont = !ts->ts_discont;
break;
case 'M': // --input-service
ts->forced_service_id = strtoul(optarg, NULL, 0) & 0xffff;
break;
case 'T': // --input-buffer
ts->input_buffer_time = strtoul(optarg, NULL, 0);
break;
case 'W': // --input-dump
ts->input_dump_filename = optarg;
break;
case 'O': // --output
output_addr_err = !parse_io_param(&ts->output, optarg,
O_CREAT | O_WRONLY | O_TRUNC,
S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
break;
case 'o': // --output-intf
if (strchr(optarg, '.'))
inet_aton(optarg, &ts->output.intf);
else
ts->output.v6_if_index = atoi(optarg);
break;
case 't': // --output-ttl
ts->output.ttl = atoi(optarg);
break;
case 'r': // --output-rtp
ts->rtp_output = 1;
break;
case 'k': // --output-rtp-ssrc
ts->rtp_ssrc = strtoul(optarg, NULL, 0);
break;
case 'g': // --output-tos
ts->output.tos = (uint8_t)strtol(optarg, NULL, 0);
break;
case 'u': // --no-output-on-error
ts->no_output_on_error = !ts->no_output_on_error;
break;
case 'p': // --no-output-filter
ts->pid_filter = !ts->pid_filter;
break;
case 'y': // --output-nit-pass
ts->nit_passthrough = !ts->nit_passthrough;
break;
case 'w': // --output-eit-pass
ts->eit_passthrough = !ts->eit_passthrough;
break;
case 'x': // --output-tdt-pass
ts->tdt_passthrough = !ts->tdt_passthrough;
break;
case '3': // --output-enc-pass
ts->allow_encrypted_output = !ts->allow_encrypted_output;
break;
case 'c': // --ca-system
if (strcasecmp("IRDETO", optarg) == 0)
ts->req_CA_sys = CA_IRDETO;
else if (strcasecmp("CONNAX", optarg) == 0 || strcasecmp("CONAX", optarg) == 0)
ts->req_CA_sys = CA_CONAX;
else if (strcasecmp("CRYPTOWORKS", optarg) == 0)
ts->req_CA_sys = CA_CRYPTOWORKS;
else if (strcasecmp("SECA", optarg) == 0 || strcasecmp("MEDIAGUARD", optarg) == 0)
ts->req_CA_sys = CA_SECA;
else if (strcasecmp("VIACCESS", optarg) == 0)
ts->req_CA_sys = CA_VIACCESS;
else if (strcasecmp("VIDEOGUARD", optarg) == 0 || strcasecmp("NDS", optarg) == 0)
ts->req_CA_sys = CA_VIDEOGUARD;
else if (strcasecmp("NAGRA", optarg) == 0)
ts->req_CA_sys = CA_NAGRA;
else if (strcasecmp("DRE-CRYPT", optarg) == 0 || strcasecmp("DRECRYPT", optarg) == 0)
ts->req_CA_sys = CA_DRECRYPT;
else if (strcasecmp("BULCRYPT", optarg) == 0)
ts->req_CA_sys = CA_BULCRYPT;
else if (strcasecmp("GRIFFIN", optarg) == 0)
ts->req_CA_sys = CA_GRIFFIN;
else if (strcasecmp("DGCRYPT", optarg) == 0)
ts->req_CA_sys = CA_DGCRYPT;
else
ca_err = 1;
break;
case 'C': // --caid
ts->forced_caid = strtoul(optarg, NULL, 0) & 0xffff;
break;
case 'Y': // --const-cw
ts->camd.constant_codeword = 1;
if (strlen(optarg) > 2 && optarg[0] == '0' && optarg[1] == 'x')
optarg += 2;
if (strlen(optarg) != CODEWORD_LENGTH * 2) {
fprintf(stderr, "ERROR: Constant code word should be %u characters long.\n", CODEWORD_LENGTH * 2);
exit(EXIT_FAILURE);
}
if (decode_hex_string(optarg, ts->camd.key->cw, strlen(optarg)) < 0) {
fprintf(stderr, "ERROR: Invalid hex string for constant code word: %s\n", optarg);
exit(EXIT_FAILURE);
}
camd_set_cw(ts, ts->camd.key->cw, 0);
ts->camd.key->is_valid_cw = 1;
break;
case 'Q': // --biss-key
ts->camd.constant_codeword = 1;
if (strlen(optarg) > 2 && optarg[0] == '0' && optarg[1] == 'x')
optarg += 2;
uint8_t *key = ts->camd.key->cw;
// Sometimes the BISS keys are entered with their checksums already calculated (16 symbols, 8 bytes)
// This is the same as constant cw with the same key for even and odd
if (strlen(optarg) == (BISSKEY_LENGTH + 2) * 2) {
if (decode_hex_string(optarg, key, strlen(optarg)) < 0) {
fprintf(stderr, "ERROR: Invalid hex string for BISS key: %s\n", optarg);
exit(EXIT_FAILURE);
}
} else {
// BISS key without checksum (12 symbols, 6 bytes)
if (strlen(optarg) != BISSKEY_LENGTH * 2) {
fprintf(stderr, "ERROR: BISS key should be %u characters long.\n", BISSKEY_LENGTH * 2);
exit(EXIT_FAILURE);
}
if (decode_hex_string(optarg, key, strlen(optarg)) < 0) {
fprintf(stderr, "ERROR: Invalid hex string for BISS key: %s\n", optarg);
exit(EXIT_FAILURE);
}
// Calculate BISS KEY crc
memmove(key + 4, key + 3, 3);
key[3] = (uint8_t)(key[0] + key[1] + key[2]);
key[7] = (uint8_t)(key[4] + key[5] + key[6]);
}
// Even and odd keys are the same
memcpy(key + 8, key, 8);
camd_set_cw(ts, ts->camd.key->cw, 0);
ts->camd.key->is_valid_cw = 1;
break;
case 'A': // --camd-proto
if (strcasecmp(optarg, "cs378x") == 0) {
camd_proto_cs378x(&ts->camd.ops);
} else if (strcasecmp(optarg, "newcamd") == 0) {
camd_proto_newcamd(&ts->camd.ops);
} else {
fprintf(stderr, "Unknown CAMD protocol: %s\n", optarg);
exit(EXIT_FAILURE);
}
break;
case 's': // --camd-server
server_err = !parse_host_and_port(optarg, &ts->camd.hostname, &ts->camd.service, &port_set);
break;
case 'U': // --camd-user
if (strlen(optarg) < 64)
ts->camd.user = optarg;
break;
case 'P': // --camd-pass
ts->camd.pass = optarg;
break;
case 'B': // --camd-des-key
if (strlen(optarg) > 2 && optarg[0] == '0' && optarg[1] == 'x')
optarg += 2;
if (strlen(optarg) != DESKEY_LENGTH) {
fprintf(stderr, "ERROR: des key should be %u characters long.\n", DESKEY_LENGTH);
exit(EXIT_FAILURE);
}
strncpy(ts->camd.newcamd.hex_des_key, optarg, sizeof(ts->camd.newcamd.hex_des_key) - 1);
ts->camd.newcamd.hex_des_key[sizeof(ts->camd.newcamd.hex_des_key) - 1] = 0;
break;
case '4': // --ipv4
ai_family = AF_INET;
break;
case '6': // --ipv6
ai_family = AF_INET6;
break;
case 'e': // --emm
ts->process_emm = !ts->process_emm;
break;
case 'Z': // --emm-pid
ts->forced_emm_pid = strtoul(optarg, NULL, 0) & 0x1fff;
break;
case 'E': // --emm-only
ts->process_emm = 1;
ts->process_ecm = 0;
ts->output_stream = 0;
break;
case 'f': // --emm-report-time
ts->emm_report_interval = strtoul(optarg, NULL, 10);
if (ts->emm_report_interval > 86400)
ts->emm_report_interval = 86400;
break;
case 'a': // --emm-filter
if (ts->emm_filters_num + 1 > MAX_FILTERS) {
fprintf(stderr, "ERROR: Maximum allowed filters are %d.\n", MAX_FILTERS);
exit(EXIT_FAILURE);
}
if (filter_parse(optarg, &ts->emm_filters[ts->emm_filters_num])) {
ts->emm_filters_num++;
} else {
fprintf(stderr, "ERROR: Can't parse EMM filter: %s\n", optarg);
exit(EXIT_FAILURE);
}
break;
case 'X': // --ecm-pid
ts->forced_ecm_pid = strtoul(optarg, NULL, 0) & 0x1fff;
break;
case 'v': // --ecm-only
ts->process_emm = 0;
ts->process_ecm = 1;
ts->output_stream = 0;
break;
case 'H': // --ecm-report-time
ts->ecm_report_interval = strtoul(optarg, NULL, 10);
if (ts->ecm_report_interval > 86400)
ts->ecm_report_interval = 86400;
break;
case 'G': // --ecm-irdeto-type
ts->irdeto_ecm_idx = strtoul(optarg, NULL, 0);
ts->irdeto_ecm_filter_type = IRDETO_FILTER_IDX;
break;
case '2': // --ecm-irdeto-chid
ts->irdeto_ecm_chid = strtoul(optarg, NULL, 0);
ts->irdeto_ecm_filter_type = IRDETO_FILTER_CHID;
break;
case 'K': // --ecm-no-log
ts->ecm_cw_log = !ts->ecm_cw_log;
break;
case 'J': // --cw-warn-time
ts->cw_warn_sec = strtoul(optarg, NULL, 10);
if (ts->cw_warn_sec > 86400)
ts->cw_warn_sec = 86400;
ts->cw_last_warn= ts->cw_last_warn + ts->cw_warn_sec;
break;
case 'q': // --ecm-and-emm-only
ts->process_emm = 1;
ts->process_ecm = 1;
ts->output_stream = 0;
break;
case 'D': // --debug
ts->debug_level = atoi(optarg);
if (ts->debug_level > 0)
ts->pid_report = 1;
break;
case 'j': // --pid-report
ts->pid_report = 1;
break;
case 'b': // --bench
csa_benchmark();
exit(EXIT_SUCCESS);
case 'n': // --ecm-file
case 'm': // --emm-file
packet_from_file = 1;
packet_buflen = file_hex2buf(optarg, packet_buf, sizeof(packet_buf));
if (!packet_buflen) {
fprintf(stderr, "ERROR: Can't init packet from file.\n");
exit(1);
}
packet_type = j == 'n' ? ECM_MSG : EMM_MSG;
break;
case 'h': // --help
show_help(ts);
exit(EXIT_SUCCESS);
case 'V': // --version
printf("%s\n", program_id);
exit(EXIT_SUCCESS);
}
}
if (!ts->ident) {
if (ts->syslog_active || ts->notify_program || ts->status_file)
ident_err = 1;
}
if (packet_from_file) {
int err = 0;
if (!ts->forced_caid) {
fprintf(stderr, "ERROR: CAID was not set. Use --caid option.\n");
err++;
}
if (!ts->forced_service_id) {
fprintf(stderr, "ERROR: Service id was not set. Use --input-service option.\n");
err++;
}
if (err)
exit(EXIT_FAILURE);
ts->threaded = 0;
input_addr_err = 0;
output_addr_err = 0;
ts->input.type = FILE_IO;
ts->input.fd = 0;
ts->output.type = FILE_IO;
ts->output.fd = 1;
ts->pid_filter = 0;
ts->process_ecm = 0;
ts->process_emm = 0;
ts->output_stream = 0;
ts->camd.no_reconnect = 1;
ts->camd.check_emm_errors = 1;
ts->emm_filters_num = 0;
}
// Constant codeword is special. Disable conflicting options
if (ts->camd.constant_codeword) {
server_err = 0; // No server settings are required
ts->process_ecm = 0;
ts->process_emm = 0;
ts->output_stream = 1;
}
if (ident_err || ca_err || server_err || input_addr_err || output_addr_err || ts->input.type == WTF_IO || ts->output.type == WTF_IO) {
if (ident_err)
fprintf(stderr, "ERROR: Ident is not set, please use --ident option.\n");
if (ca_err)
fprintf(stderr, "ERROR: Requested CA system is unsupported.\n");
if (server_err)
fprintf(stderr, "ERROR: CAMD server address is not set or it is invalid.\n");
if (input_addr_err)
fprintf(stderr, "ERROR: Input address is invalid.\n");
if (output_addr_err)
fprintf(stderr, "ERROR: Output address is invalid.\n");
exit(EXIT_FAILURE);
}
if (decode_hex_string(ts->camd.newcamd.hex_des_key, ts->camd.newcamd.bin_des_key, DESKEY_LENGTH) < 0) {
fprintf(stderr, "ERROR: Invalid hex string for des key: %s\n", ts->camd.newcamd.hex_des_key);
exit(EXIT_FAILURE);
}
if (ts->camd.ops.proto == CAMD_NEWCAMD && !port_set) {
fprintf(stderr, "ERROR: CAMD server port is not set. Use --camd-server %s:xxxx to set the port.\n", ts->camd.hostname);
exit(EXIT_FAILURE);
}
if (log_filename) {
log_file = fopen(log_filename, "a");
if (!log_file) {
fprintf(stderr, "ERROR: Can't open log file %s: %s\n", log_filename, strerror(errno));
exit(EXIT_FAILURE);
}
}
if (ts->ident)
ts_LOGf("Ident : %s\n", ts->ident);
if (ts->notify_program)
ts_LOGf("Notify prg : %s (%s)\n", ts->notify_program, ts->notify_wait ? "sync" : "async");
if (ts->status_file)
ts_LOGf("Status file: %s\n", ts->status_file);
if (ts->pidfile)
ts_LOGf("Daemonize : %s pid file.\n", ts->pidfile);
if (ts->syslog_active) {
if (ts->syslog_remote)
ts_LOGf("Syslog : %s:%d\n", ts->syslog_host, ts->syslog_port);
else
ts_LOGf("Syslog : enabled\n");
} else {
if (!packet_from_file)
ts_LOGf("Syslog : disabled\n");
}
if (!ts->camd.constant_codeword) {
if (ts->forced_caid)
ts->req_CA_sys = ts_get_CA_sys(ts->forced_caid);
if (!ts->forced_caid)
ts_LOGf("CA System : %s\n", ts_get_CA_sys_txt(ts->req_CA_sys));
else
ts_LOGf("CA System : %s | CAID: 0x%04x (%d)\n",
ts_get_CA_sys_txt(ts->req_CA_sys),
ts->forced_caid, ts->forced_caid);
} else {
char cw_even[64], cw_odd[64];
ts_hex_dump_buf(cw_even, sizeof(cw_even), ts->key.cw , 8, 0);
ts_hex_dump_buf(cw_odd , sizeof(cw_odd ), ts->key.cw + 8, 8, 0);
ts_LOGf("Constant CW: even = %s\n", cw_even);
ts_LOGf("Constant CW: odd = %s\n", cw_odd);
}
if (ts->input.type == NET_IO) {
ts_LOGf("Input addr : %s://%s:%s/\n",
ts->rtp_input ? "rtp" : "udp",
ts->input.hostname, ts->input.service);
ts_LOGf("Input src : %s\n", inet_ntoa(ts->input.isrc));
if (ts->input_buffer_time) {
ts_LOGf("Input buff : %u ms\n", ts->input_buffer_time);
}
} else if (ts->input.type == FILE_IO) {
if (!packet_from_file)
ts_LOGf("Input file : %s\n", ts->input.fd == 0 ? "STDIN" : ts->input.fname);
}
if (ts->input_dump_filename) {
ts->input_dump_file = fopen(ts->input_dump_filename, "w");
if (ts->input_dump_file)
ts_LOGf("Input dump : %s\n", ts->input_dump_filename);
else
ts_LOGf("Input dump : %s | ERROR: %s\n", ts->input_dump_filename, strerror(errno));
}
if (ts->forced_service_id)
ts_LOGf("Service id : 0x%04x (%d)\n",
ts->forced_service_id, ts->forced_service_id);
if (ts->req_CA_sys == CA_IRDETO) {
switch (ts->irdeto_ecm_filter_type) {
case IRDETO_FILTER_IDX : ts_LOGf("Irdeto ECM : Index: 0x%02x (%d)\n", ts->irdeto_ecm_idx, ts->irdeto_ecm_idx); break;
case IRDETO_FILTER_CHID: ts_LOGf("Irdeto ECM : CHID: 0x%04x (%d)\n", ts->irdeto_ecm_chid, ts->irdeto_ecm_chid); break;
}
}
if (ts->output_stream) {
if (ts->output.type == NET_IO) {
ts_LOGf("Output addr: %s://%s:%s/\n",
ts->rtp_output ? "rtp" : "udp",
ts->output.hostname, ts->output.service);
ts_LOGf("Output intf: %s (IPv6 intf index:%d)\n",
inet_ntoa(ts->output.intf), ts->output.v6_if_index);
ts_LOGf("Output ttl : %d\n", ts->output.ttl);
if (ts->output.tos > -1)
ts_LOGf("Output TOS : %u (0x%02x)\n", ts->output.tos, ts->output.tos);
if (ts->rtp_output) {
ts_LOGf("RTP SSRC : %u (0x%04x)\n",
ts->rtp_ssrc, ts->rtp_ssrc);
// It is recommended that RTP seqnum starts with random number
RAND_bytes((unsigned char *)&(ts->rtp_seqnum), 2);
}
} else if (ts->output.type == FILE_IO) {
ts_LOGf("Output file: %s\n", ts->output.fd == 1 ? "STDOUT" : ts->output.fname);
}
ts_LOGf("Out filter : %s (%s)%s\n",
ts->pid_filter ? "enabled" : "disabled",
ts->pid_filter ? "output only service related PIDs" : "output everything",
ts->no_output_on_error ? " (No output on CW error)" : ""
);
if (ts->pid_filter) {
if (ts->nit_passthrough)
ts_LOGf("Out filter : Pass through NIT.\n");
if (ts->eit_passthrough)
ts_LOGf("Out filter : Pass through EIT (EPG).\n");
if (ts->tdt_passthrough)
ts_LOGf("Out filter : Pass through TDT/TOT.\n");
}
ts_LOGf("TS discont : %s\n", ts->ts_discont ? "report" : "ignore");
ts->threaded = !(ts->input.type == FILE_IO && ts->input.fd != 0);
ts_LOGf("Decoding : %s\n", ts->threaded ? "threaded" : "single thread");
} else {
ts_LOGf("Decoding : disabled\n");
}
if (!ts->camd.constant_codeword) {
ts_LOGf("CAMD proto : %s\n", ts->camd.ops.ident);
ts_LOGf("CAMD addr : %s:%s%s\n", ts->camd.hostname, ts->camd.service,
ai_family == AF_INET ? " (IPv4 only)" :
ai_family == AF_INET6 ? " (IPv6 only)" :
" (IPv4/IPv6)"
);
ts_LOGf("CAMD user : %s\n", ts->camd.user);
ts_LOGf("CAMD pass : %s\n", ts->camd.pass);
if (ts->camd.ops.proto == CAMD_NEWCAMD)
ts_LOGf("CAMD deskey: %s\n", ts->camd.newcamd.hex_des_key);
}
if (!packet_from_file)
ts_LOGf("EMM process: %s\n", ts->process_emm ? "Yes" : "No");
if (ts->process_emm) {
if (ts->forced_emm_pid)
ts_LOGf("EMM pid : 0x%04x (%d)\n", ts->forced_emm_pid, ts->forced_emm_pid);
if (ts->emm_report_interval)
ts_LOGf("EMM report : %d sec\n", ts->emm_report_interval);
else
ts_LOGf("EMM report : disabled\n");
for (i = 0; i < ts->emm_filters_num; i++) {
char tmp[512];
filter_dump(&ts->emm_filters[i], tmp, sizeof(tmp));
ts_LOGf("EMM filter : [%2d] %s\n", i + 1, tmp);
}
}
if (!packet_from_file)
ts_LOGf("ECM process: %s\n", ts->process_ecm ? "Yes" : "No");
if (ts->process_ecm) {
if (ts->forced_ecm_pid)
ts_LOGf("ECM pid : 0x%04x (%d)\n", ts->forced_ecm_pid, ts->forced_ecm_pid);
if (ts->ecm_report_interval)
ts_LOGf("ECM report : %d sec\n", ts->emm_report_interval);
else
ts_LOGf("ECM report : disabled\n");
if (ts->cw_warn_sec)
ts_LOGf("CW warning : %d sec\n", ts->cw_warn_sec);
else
ts_LOGf("CW warning : disabled\n");
if (!ts->ecm_cw_log)
ts_LOGf("ECM/CW log : disabled\n");
}
if (ts->ident) {
int len = strlen(ts->ident);
for (i = 0; i < len; i++) {
if (ts->ident[i] == '/')
ts->ident[i] = '-';
}
}
}
static void report_emms(struct ts *ts, time_t now) {
ts_LOGf("EMM | Received %u, Skipped %u, Sent %u, Processed %u in %lu seconds.\n",
ts->emm_input_count,
ts->emm_skipped_count,
ts->emm_seen_count,
ts->emm_processed_count,
now - ts->emm_last_report);
if (ts->emm_seen_count == 0) {
notify(ts, "NO_EMM_RECEIVED", "No EMMs were received in last %lu seconds.",
now - ts->emm_last_report);
}
ts->emm_last_report = now;
ts->emm_input_count = 0;
ts->emm_seen_count = 0;
ts->emm_skipped_count = 0;
ts->emm_processed_count = 0;
}
static void report_ecms(struct ts *ts, time_t now) {
if ((ts->stream_is_not_scrambled || !ts->have_valid_pmt || ts->no_input) && ts->ecm_seen_count == 0)
return;
ts_LOGf("ECM | Received %u (%u dup) and processed %u in %lu seconds.\n",
ts->ecm_seen_count,
ts->ecm_duplicate_count,
ts->ecm_processed_count,
now - ts->ecm_last_report);
ts->ecm_last_report = now;
ts->ecm_seen_count = 0;
ts->ecm_duplicate_count = 0;
ts->ecm_processed_count = 0;
}
static void report_cw_warn(struct ts *ts, time_t now) {
if (ts->stream_is_not_scrambled || !ts->have_valid_pmt || ts->no_input)
return;
if (now - ts->key.ts > 1) {
notify(ts, "NO_CODE_WORD", "No valid code word was received in %ld sec.",
now - ts->key.ts);
ts_LOGf("CW | *ERR* No valid code word was received for %ld seconds!\n",
now - ts->key.ts);
}
ts->cw_last_warn = now;
ts->cw_next_warn = now + ts->cw_warn_sec;
}
static void do_reports(struct ts *ts) {
static int first_emm_report = 1;
static int first_ecm_report = 1;
time_t now = time(NULL);
if (ts->process_emm && ts->emm_report_interval) {
if (first_emm_report && now >= ts->emm_last_report) {
first_emm_report = 0;
ts->emm_last_report -= FIRST_REPORT_SEC;
report_emms(ts, now);
} else if ((time_t)(ts->emm_last_report + ts->emm_report_interval) <= now) {
report_emms(ts, now);
}
}
if (ts->process_ecm && ts->ecm_report_interval) {
if (first_ecm_report && now >= ts->ecm_last_report) {
first_ecm_report = 0;
ts->ecm_last_report -= FIRST_REPORT_SEC;
report_ecms(ts, now);
} else if ((time_t)(ts->ecm_last_report + ts->ecm_report_interval) <= now) {
report_ecms(ts, now);
}
}
if (ts->stream_is_not_scrambled && ts->last_not_scrambled_report_ts <= now - 60) {
ts_LOGf("CLR | No encrypted packets in the last %ld seconds. Stream is clear.\n", now - ts->last_scrambled_packet_ts);
notify(ts, "STREAM_CLEAR", "No encrypted packets in the last %ld seconds. Stream is clear.", now - ts->last_scrambled_packet_ts);
ts->last_not_scrambled_report_ts = now;
ts->key.is_valid_cw = 0;
} else {
if (ts->process_ecm && !ts->key.is_valid_cw) {
if (ts->cw_warn_sec && now >= ts->cw_next_warn) {
report_cw_warn(ts, now);
}
}
}
if (!ts->no_input) {
if (ts->last_pmt_ts <= now - 3) {
if (ts->have_valid_pmt) {
ts_LOGf("MIS | There is no valid PMT in the input.\n");
notify(ts, "NO_PROGRAM", "The input is missing valid program.");
ts->have_valid_pmt = 0;
ts->key.is_valid_cw = 0;
}
}
}
}
static struct ts ts;
void signal_quit(int sig) {
if (!keep_running)
raise(sig);
keep_running = 0;
ts_LOGf("Killed %s with signal %d\n", program_id, sig);
if (ts.input.type == NET_IO)
shutdown_fd(&ts.input.fd);
if (ts.output.type == NET_IO)
shutdown_fd(&ts.output.fd);
signal(sig, SIG_DFL);
}
void signal_alarm(int sig) {
(void)sig;
raise(SIGINT);
}
#define RTP_HDR_SZ 12
static uint8_t ts_packet[FRAME_SIZE + RTP_HDR_SZ];
static uint8_t rtp_hdr[2][RTP_HDR_SZ];
int main(int argc, char **argv) {
ssize_t readen;
int have_data = 1;
int ntimeouts = 0;
time_t timeout_start = time(NULL);
int rtp_hdr_pos = 0, num_packets = 0;
struct rlimit rl;
if (getrlimit(RLIMIT_STACK, &rl) == 0) {
if (rl.rlim_cur > THREAD_STACK_SIZE) {
rl.rlim_cur = THREAD_STACK_SIZE;
setrlimit(RLIMIT_STACK, &rl);
}
}
memset(rtp_hdr[0], 0, RTP_HDR_SZ);
memset(rtp_hdr[1], 0, RTP_HDR_SZ);
data_init(&ts);
ts_set_log_func(LOG_func);
parse_options(&ts, argc, argv);