static char *config_striconv( const char *psz_string )
{
char *psz_input = config_stropt(psz_string);
if ( !strcasecmp( psz_native_charset, psz_dvb_charset ) )
return psz_input;
#ifdef HAVE_ICONV
if ( conf_iconv == (iconv_t)-1 )
{
conf_iconv = iconv_open( psz_dvb_charset, psz_native_charset );
if ( conf_iconv == (iconv_t)-1 )
return psz_input;
}
size_t i_input = strlen( psz_input );
size_t i_output = i_input * 6;
char *psz_output = malloc( i_output );
char *p = psz_output;
if ( iconv( conf_iconv, &psz_input, &i_input, &p, &i_output ) == -1 )
{
free( psz_output );
return psz_input;
}
free(psz_input);
return psz_output;
#else
msg_Warn( NULL,
"unable to convert from %s to %s (iconv is not available)",
psz_native_charset, psz_dvb_charset );
return psz_input;
#endif
}
static bool config_ParseHost( output_config_t *p_config, char *psz_string )
{
struct addrinfo *p_ai;
int i_mtu;
p_config->psz_displayname = strdup( psz_string );
p_ai = ParseNodeService( psz_string, &psz_string, DEFAULT_PORT );
if ( p_ai == NULL ) return false;
memcpy( &p_config->connect_addr, p_ai->ai_addr, p_ai->ai_addrlen );
freeaddrinfo( p_ai );
p_config->i_family = p_config->connect_addr.ss_family;
if ( p_config->i_family == AF_UNSPEC ) return false;
if ( psz_string == NULL || !*psz_string ) goto end;
if ( *psz_string == '@' )
{
psz_string++;
p_ai = ParseNodeService( psz_string, &psz_string, 0 );
if ( p_ai == NULL || p_ai->ai_family != p_config->i_family )
msg_Warn( NULL, "invalid bind address" );
else
memcpy( &p_config->bind_addr, p_ai->ai_addr, p_ai->ai_addrlen );
freeaddrinfo( p_ai );
}
while ( (psz_string = strchr( psz_string, '/' )) != NULL )
{
*psz_string++ = '\0';
#define IS_OPTION( option ) (!strncasecmp( psz_string, option, strlen(option) ))
#define ARG_OPTION( option ) (psz_string + strlen(option))
if ( IS_OPTION("udp") )
p_config->i_config |= OUTPUT_UDP;
else if ( IS_OPTION("dvb") )
p_config->i_config |= OUTPUT_DVB;
else if ( IS_OPTION("epg") )
p_config->i_config |= OUTPUT_EPG;
else if ( IS_OPTION("tsid=") )
p_config->i_tsid = strtol( ARG_OPTION("tsid="), NULL, 0 );
else if ( IS_OPTION("retention=") )
p_config->i_max_retention = strtoll( ARG_OPTION("retention="),
NULL, 0 ) * 1000;
else if ( IS_OPTION("latency=") )
p_config->i_output_latency = strtoll( ARG_OPTION("latency="),
NULL, 0 ) * 1000;
else if ( IS_OPTION("ttl=") )
p_config->i_ttl = strtol( ARG_OPTION("ttl="), NULL, 0 );
else if ( IS_OPTION("tos=") )
p_config->i_tos = strtol( ARG_OPTION("tos="), NULL, 0 );
else if ( IS_OPTION("mtu=") )
p_config->i_mtu = strtol( ARG_OPTION("mtu="), NULL, 0 );
else if ( IS_OPTION("ifindex=") )
p_config->i_if_index_v6 = strtol( ARG_OPTION("ifindex="), NULL, 0 );
else if ( IS_OPTION("networkid=") )
p_config->i_network_id = strtol( ARG_OPTION("networkid="), NULL, 0 );
else if ( IS_OPTION("networkname=") )
{
config_strdvb( &p_config->network_name, ARG_OPTION("networkname=") );
}
else if ( IS_OPTION("srvname=") )
{
config_strdvb( &p_config->service_name, ARG_OPTION("srvname=") );
}
else if ( IS_OPTION("srvprovider=") )
{
config_strdvb( &p_config->provider_name, ARG_OPTION("srvprovider=") );
}
else if ( IS_OPTION("srcaddr=") )
{
if ( p_config->i_family != AF_INET ) {
msg_Err( NULL, "RAW sockets currently implemented for ipv4 only");
return false;
}
free( p_config->psz_srcaddr );
p_config->psz_srcaddr = config_stropt( ARG_OPTION("srcaddr=") );
p_config->i_config |= OUTPUT_RAW;
}
else if ( IS_OPTION("srcport=") )
p_config->i_srcport = strtol( ARG_OPTION("srcport="), NULL, 0 );
else if ( IS_OPTION("ssrc=") )
{
in_addr_t i_addr = inet_addr( ARG_OPTION("ssrc=") );
memcpy( p_config->pi_ssrc, &i_addr, 4 * sizeof(uint8_t) );
}
else if ( IS_OPTION("pidmap=") )
{
char *str1;
char *saveptr = NULL;
char *tok = NULL;
int i, i_newpid;
for (i = 0, str1 = config_stropt( (ARG_OPTION("pidmap="))); i < N_MAP_PIDS; i++, str1 = NULL)
{
tok = strtok_r(str1, ",", &saveptr);
if ( !tok )
break;
i_newpid = strtoul(tok, NULL, 0);
p_config->pi_confpids[i] = i_newpid;
}
p_config->b_do_remap = true;
}
else if ( IS_OPTION("newsid=") )
p_config->i_new_sid = strtol( ARG_OPTION("newsid="), NULL, 0 );
else
msg_Warn( NULL, "unrecognized option %s", psz_string );
#undef IS_OPTION
#undef ARG_OPTION
}
end:
i_mtu = p_config->i_family == AF_INET6 ? DEFAULT_IPV6_MTU :
DEFAULT_IPV4_MTU;
if ( !p_config->i_mtu )
p_config->i_mtu = i_mtu;
else if ( p_config->i_mtu < TS_SIZE + RTP_HEADER_SIZE )
{
msg_Warn( NULL, "invalid MTU %d, setting %d", p_config->i_mtu, i_mtu );
p_config->i_mtu = i_mtu;
}
return true;
}
/** @internal @This parses _uri and opens IPv4 & IPv6 sockets
*
* @param upipe description structure of the pipe
* @param _uri socket URI
* @param ttl packets time-to-live
* @param bind_port bind port
* @param connect_port connect port
* @param weight weight (UNUSED)
* @param use_tcp Set this to open a tcp socket (instead of udp)
* @param use_raw open RAW socket (udp)
* @param raw_header user-provided buffer for RAW header (ip+udp)
* @return socket fd, or -1 in case of error
*/
int upipe_udp_open_socket(struct upipe *upipe, const char *_uri, int ttl,
uint16_t bind_port, uint16_t connect_port,
unsigned int *weight, bool *use_tcp,
bool *use_raw, uint8_t *raw_header)
{
union sockaddru bind_addr, connect_addr;
int fd, i;
char *uri = strdup(_uri);
char *token = uri;
char *token2 = NULL;
int bind_if_index = 0, connect_if_index = 0;
in_addr_t if_addr = INADDR_ANY;
in_addr_t src_addr = INADDR_ANY;
uint16_t src_port = 4242;
int tos = 0;
bool b_tcp;
bool b_raw;
int family;
socklen_t sockaddr_len;
#if !defined(__APPLE__) && !defined(__native_client__)
char *ifname = NULL;
#endif
if (!uri)
return -1;
memset(&bind_addr, 0, sizeof(union sockaddru));
memset(&connect_addr, 0, sizeof(union sockaddru));
bind_addr.ss.ss_family = AF_UNSPEC;
connect_addr.ss.ss_family = AF_UNSPEC;
if (use_tcp == NULL) {
use_tcp = &b_tcp;
}
*use_tcp = false;
if (use_raw == NULL) {
use_raw = &b_raw;
}
*use_raw = false;
token2 = strrchr(uri, ',');
if (token2) {
*token2++ = '\0';
if (weight) {
*weight = strtoul(token2, NULL, 0);
}
} else if (weight) {
*weight = 1;
}
token2 = strchr(uri, '/');
if (token2) {
*token2 = '\0';
}
if (*token == '\0') {
free(uri);
return -1;
}
/* Hosts */
if (token[0] != '@') {
if (!upipe_udp_parse_node_service(upipe, token, &token, connect_port,
&connect_if_index, &connect_addr.ss)) {
free(uri);
return -1;
}
/* required on some architectures */
memset(&connect_addr.sin.sin_zero, 0, sizeof(connect_addr.sin.sin_zero));
}
if (token[0] == '@') {
token++;
if (!upipe_udp_parse_node_service(upipe, token, &token, bind_port,
&bind_if_index, &bind_addr.ss)) {
free(uri);
return -1;
}
/* required on some architectures */
memset(&bind_addr.sin.sin_zero, 0, sizeof(bind_addr.sin.sin_zero));
}
if (bind_addr.ss.ss_family == AF_UNSPEC &&
connect_addr.ss.ss_family == AF_UNSPEC) {
free(uri);
return -1;
}
upipe_udp_print_socket(upipe, "socket definition:", &bind_addr, &connect_addr);
/* Weights and options */
if (token2) {
do {
*token2++ = '\0';
#define IS_OPTION(option) (!strncasecmp(token2, option, strlen(option)))
#define ARG_OPTION(option) (token2 + strlen(option))
if (IS_OPTION("ifindex=")) {
bind_if_index = connect_if_index =
strtol(ARG_OPTION("ifindex="), NULL, 0);
} else if (IS_OPTION("ifaddr=")) {
char *option = config_stropt(ARG_OPTION("ifaddr="));
if_addr = inet_addr(option);
free( option );
#if !defined(__APPLE__) && !defined(__native_client__)
} else if ( IS_OPTION("ifname=") ) {
ifname = config_stropt( ARG_OPTION("ifname=") );
if (strlen(ifname) >= IFNAMSIZ) {
ifname[IFNAMSIZ-1] = '\0';
}
#endif
} else if (IS_OPTION("srcaddr=")) {
char *option = config_stropt(ARG_OPTION("srcaddr="));
src_addr = inet_addr(option);
free(option);
*use_raw = true;
} else if (IS_OPTION("srcport=")) {
src_port = strtol(ARG_OPTION("srcport="), NULL, 0);
} else if (IS_OPTION("ttl=")) {
ttl = strtol(ARG_OPTION("ttl="), NULL, 0);
} else if (IS_OPTION("tos=")) {
tos = strtol(ARG_OPTION("tos="), NULL, 0);
} else if (IS_OPTION("tcp")) {
*use_tcp = true;
} else {
upipe_warn_va(upipe, "unrecognized option %s", token2);
}
#undef IS_OPTION
#undef ARG_OPTION
} while ((token2 = strchr(token2, '/')) != NULL);
}
if (unlikely(*use_tcp && *use_raw)) {
upipe_warn(upipe, "RAW sockets not implemented for tcp");
free(uri);
return -1;
}
free(uri);
/* Sanity checks */
if (bind_addr.ss.ss_family != AF_UNSPEC
&& connect_addr.ss.ss_family != AF_UNSPEC
&& bind_addr.ss.ss_family != connect_addr.ss.ss_family) {
upipe_err(upipe, "incompatible address types");
return -1;
}
if (bind_addr.ss.ss_family != AF_UNSPEC) {
family = bind_addr.ss.ss_family;
} else if (connect_addr.ss.ss_family != AF_UNSPEC) {
family = connect_addr.ss.ss_family;
} else {
upipe_err(upipe, "ambiguous address declaration");
return -1;
}
sockaddr_len = (family == AF_INET) ? sizeof(struct sockaddr_in) :
sizeof(struct sockaddr_in6);
if (bind_if_index && connect_if_index
&& bind_if_index != connect_if_index) {
upipe_err(upipe, "incompatible bind and connect interfaces");
return -1;
}
if (connect_if_index) bind_if_index = connect_if_index;
else connect_if_index = bind_if_index;
/* RAW header */
if (*use_raw && raw_header) {
upipe_udp_raw_fill_headers(upipe, raw_header,
src_addr, connect_addr.sin.sin_addr.s_addr, src_port,
ntohs(connect_addr.sin.sin_port), ttl, tos, 0);
}
/* Socket configuration */
int sock_type = SOCK_DGRAM;
if (*use_tcp) sock_type = SOCK_STREAM;
if (*use_raw) sock_type = SOCK_RAW;
int sock_proto = (*use_raw ? IPPROTO_RAW : 0);
if ((fd = socket(family, sock_type, sock_proto)) < 0) {
upipe_err_va(upipe, "unable to open socket (%m)");
return -1;
}
#if !defined(__APPLE__) && !defined(__native_client__)
if (*use_raw) {
int hincl = 1;
if (setsockopt(fd, IPPROTO_IP, IP_HDRINCL, &hincl, sizeof(hincl)) < 0) {
upipe_err_va(upipe, "unable to set IP_HDRINCL");
close(fd);
return -1;
}
}
#endif
i = 1;
if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void *)&i,
sizeof(i)) == -1) {
upipe_err_va(upipe, "unable to set socket (%m)");
close(fd);
return -1;
}
if (family == AF_INET6) {
if (bind_if_index
&& setsockopt(fd, IPPROTO_IPV6, IPV6_MULTICAST_IF,
(void *)&bind_if_index, sizeof(bind_if_index)) < 0) {
upipe_err(upipe, "couldn't set interface index");
upipe_udp_print_socket(upipe, "socket definition:", &bind_addr, &connect_addr);
close(fd);
return -1;
}
if (bind_addr.ss.ss_family != AF_UNSPEC) {
#if !defined(__APPLE__) && !defined(__native_client__)
if (IN6_IS_ADDR_MULTICAST(&bind_addr.sin6.sin6_addr)) {
struct ipv6_mreq imr;
union sockaddru bind_addr_any = bind_addr;
bind_addr_any.sin6.sin6_addr = in6addr_any;
if (bind(fd, &bind_addr_any.so,
sizeof(bind_addr_any)) < 0) {
upipe_err(upipe, "couldn't bind");
upipe_udp_print_socket(upipe, "socket definition:", &bind_addr, &connect_addr);
close(fd);
return -1;
}
imr.ipv6mr_multiaddr = bind_addr.sin6.sin6_addr;
imr.ipv6mr_interface = bind_if_index;
/* Join Multicast group without source filter */
if (setsockopt(fd, IPPROTO_IPV6, IPV6_ADD_MEMBERSHIP,
(char *)&imr, sizeof(struct ipv6_mreq)) < 0) {
upipe_err(upipe, "couldn't join multicast group");
upipe_udp_print_socket(upipe, "socket definition:", &bind_addr, &connect_addr);
close(fd);
return -1;
}
} else
#endif
goto normal_bind;
}
}
else if (bind_addr.ss.ss_family != AF_UNSPEC) {
normal_bind:
if (bind(fd, &bind_addr.so, sockaddr_len) < 0) {
upipe_err(upipe, "couldn't bind");
upipe_udp_print_socket(upipe, "socket definition:", &bind_addr, &connect_addr);
close(fd);
return -1;
}
}
if (!*use_tcp) {
/* Increase the receive buffer size to 1/2MB (8Mb/s during 1/2s) to
* avoid packet loss caused by scheduling problems */
i = 0x80000;
if (setsockopt(fd, SOL_SOCKET, SO_RCVBUF, (void *) &i, sizeof(i)))
upipe_warn(upipe, "fail to increase receive buffer");
/* Join the multicast group if the socket is a multicast address */
if (bind_addr.ss.ss_family == AF_INET
&& IN_MULTICAST(ntohl(bind_addr.sin.sin_addr.s_addr))) {
#ifndef __native_client__
if (connect_addr.ss.ss_family != AF_UNSPEC) {
/* Source-specific multicast */
struct ip_mreq_source imr;
imr.imr_multiaddr = bind_addr.sin.sin_addr;
imr.imr_interface.s_addr = if_addr;
imr.imr_sourceaddr = connect_addr.sin.sin_addr;
if (bind_if_index) {
upipe_warn(upipe, "ignoring ifindex option in SSM");
}
if (setsockopt(fd, IPPROTO_IP, IP_ADD_SOURCE_MEMBERSHIP,
(char *)&imr, sizeof(struct ip_mreq_source)) < 0) {
upipe_err_va(upipe, "couldn't join multicast group (%m)");
upipe_udp_print_socket(upipe, "socket definition:", &bind_addr,
&connect_addr);
close(fd);
return -1;
}
} else if (bind_if_index) {
/* Linux-specific interface-bound multicast */
struct ip_mreqn imr;
imr.imr_multiaddr = bind_addr.sin.sin_addr;
imr.imr_address.s_addr = if_addr;
imr.imr_ifindex = bind_if_index;
if (setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP,
(char *)&imr, sizeof(struct ip_mreqn)) < 0) {
upipe_err_va(upipe, "couldn't join multicast group (%m)");
upipe_udp_print_socket(upipe, "socket definition:", &bind_addr,
&connect_addr);
close(fd);
return -1;
}
} else
#endif
{
/* Regular multicast */
struct ip_mreq imr;
imr.imr_multiaddr = bind_addr.sin.sin_addr;
imr.imr_interface.s_addr = if_addr;
if (setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP,
(char *)&imr, sizeof(struct ip_mreq)) < 0) {
upipe_err_va(upipe, "couldn't join multicast group (%m)");
upipe_udp_print_socket(upipe, "socket definition:", &bind_addr,
&connect_addr);
close(fd);
return -1;
}
}
#ifdef SO_BINDTODEVICE
if (ifname) {
/* linux specific, needs root or CAP_NET_RAW */
if (setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE,
ifname, strlen(ifname) + 1) < 0) {
upipe_err_va(upipe, "couldn't bind to device %s (%m)",
ifname);
free(ifname);
close(fd);
return -1;
}
ubase_clean_str(&ifname);
}
#endif
}
}
if (connect_addr.ss.ss_family != AF_UNSPEC) {
if (connect(fd, &connect_addr.so, sockaddr_len) < 0) {
upipe_err_va(upipe, "cannot connect socket (%m)");
upipe_udp_print_socket(upipe, "socket definition:", &bind_addr, &connect_addr);
close(fd);
return -1;
}
if (!*use_tcp) {
if (ttl) {
if (family == AF_INET
&& IN_MULTICAST(ntohl(connect_addr.sin.sin_addr.s_addr))) {
if (setsockopt(fd, IPPROTO_IP, IP_MULTICAST_TTL,
(void *)&ttl, sizeof(ttl)) == -1) {
upipe_err_va(upipe, "couldn't set TTL (%m)");
upipe_udp_print_socket(upipe, "socket definition:", &bind_addr,
&connect_addr);
close(fd);
return -1;
}
}
if (family == AF_INET6
&& IN6_IS_ADDR_MULTICAST(&connect_addr.sin6.sin6_addr)) {
if (setsockopt(fd, IPPROTO_IPV6, IPV6_MULTICAST_HOPS,
(void *)&ttl, sizeof(ttl)) == -1) {
upipe_err_va(upipe, "couldn't set TTL (%m)");
upipe_udp_print_socket(upipe, "socket definition:", &bind_addr,
&connect_addr);
close(fd);
return -1;
}
}
}
if (tos) {
if (setsockopt(fd, IPPROTO_IP, IP_TOS,
(void *)&tos, sizeof(tos)) == -1) {
upipe_err_va(upipe, "couldn't set TOS (%m)");
upipe_udp_print_socket(upipe, "socket definition:", &bind_addr,
&connect_addr);
close(fd);
return -1;
}
}
}
} else if (*use_tcp) {
/* Open in listen mode - wait for an incoming connection */
int new_fd;
if (listen(fd, 1) < 0) {
upipe_err_va(upipe, "couldn't listen (%m)");
upipe_udp_print_socket(upipe, "socket definition:", &bind_addr, &connect_addr);
close(fd);
return -1;
}
while ((new_fd = accept(fd, NULL, NULL)) < 0) {
if (errno != EINTR) {
upipe_err_va(upipe, "couldn't accept (%m)");
upipe_udp_print_socket(upipe, "socket definition:", &bind_addr, &connect_addr);
close(fd);
return -1;
}
}
close(fd);
return new_fd;
}
return fd;
}
/*****************************************************************************
* udp_Open
*****************************************************************************/
void udp_Open( void )
{
int i_family;
struct addrinfo *p_connect_ai = NULL, *p_bind_ai;
int i_if_index = 0;
in_addr_t i_if_addr = INADDR_ANY;
int i_mtu = 0;
char *psz_ifname = NULL;
char *psz_bind, *psz_string = strdup( psz_udp_src );
char *psz_save = psz_string;
int i = 1;
/* Parse configuration. */
if ( (psz_bind = strchr( psz_string, '@' )) != NULL )
{
*psz_bind++ = '\0';
p_connect_ai = ParseNodeService( psz_string, NULL, 0 );
}
else
psz_bind = psz_string;
p_bind_ai = ParseNodeService( psz_bind, &psz_string, DEFAULT_PORT );
if ( p_bind_ai == NULL )
{
msg_Err( NULL, "couldn't parse %s", psz_bind );
exit(EXIT_FAILURE);
}
i_family = p_bind_ai->ai_family;
if ( p_connect_ai != NULL && p_connect_ai->ai_family != i_family )
{
msg_Warn( NULL, "invalid connect address" );
freeaddrinfo( p_connect_ai );
p_connect_ai = NULL;
}
while ( (psz_string = strchr( psz_string, '/' )) != NULL )
{
*psz_string++ = '\0';
#define IS_OPTION( option ) (!strncasecmp( psz_string, option, strlen(option) ))
#define ARG_OPTION( option ) (psz_string + strlen(option))
if ( IS_OPTION("udp") )
b_udp = true;
else if ( IS_OPTION("mtu=") )
i_mtu = strtol( ARG_OPTION("mtu="), NULL, 0 );
else if ( IS_OPTION("ifindex=") )
i_if_index = strtol( ARG_OPTION("ifindex="), NULL, 0 );
else if ( IS_OPTION("ifaddr=") )
i_if_addr = inet_addr( ARG_OPTION("ifaddr=") );
else if ( IS_OPTION("ifname=") )
{
psz_ifname = config_stropt( ARG_OPTION("ifname=") );
if (strlen(psz_ifname) >= IFNAMSIZ) {
psz_ifname[IFNAMSIZ-1] = '\0';
}
} else
msg_Warn( NULL, "unrecognized option %s", psz_string );
#undef IS_OPTION
#undef ARG_OPTION
}
if ( !i_mtu )
i_mtu = i_family == AF_INET6 ? DEFAULT_IPV6_MTU : DEFAULT_IPV4_MTU;
i_block_cnt = (i_mtu - (b_udp ? 0 : RTP_HEADER_SIZE)) / TS_SIZE;
/* Do stuff. */
if ( (i_handle = socket( i_family, SOCK_DGRAM, IPPROTO_UDP )) < 0 )
{
msg_Err( NULL, "couldn't create socket (%s)", strerror(errno) );
exit(EXIT_FAILURE);
}
setsockopt( i_handle, SOL_SOCKET, SO_REUSEADDR, (void *) &i, sizeof( i ) );
/* Increase the receive buffer size to 1/2MB (8Mb/s during 1/2s) to avoid
* packet loss caused by scheduling problems */
i = 0x80000;
setsockopt( i_handle, SOL_SOCKET, SO_RCVBUF, (void *) &i, sizeof( i ) );
if ( bind( i_handle, p_bind_ai->ai_addr, p_bind_ai->ai_addrlen ) < 0 )
{
msg_Err( NULL, "couldn't bind (%s)", strerror(errno) );
close( i_handle );
exit(EXIT_FAILURE);
}
if ( p_connect_ai != NULL )
{
uint16_t i_port;
if ( i_family == AF_INET6 )
i_port = ((struct sockaddr_in6 *)p_connect_ai->ai_addr)->sin6_port;
else
i_port = ((struct sockaddr_in *)p_connect_ai->ai_addr)->sin_port;
if ( i_port != 0 && connect( i_handle, p_connect_ai->ai_addr,
p_connect_ai->ai_addrlen ) < 0 )
msg_Warn( NULL, "couldn't connect socket (%s)", strerror(errno) );
}
/* Join the multicast group if the socket is a multicast address */
if ( i_family == AF_INET6 )
{
struct sockaddr_in6 *p_addr =
(struct sockaddr_in6 *)p_bind_ai->ai_addr;
if ( IN6_IS_ADDR_MULTICAST( &p_addr->sin6_addr ) )
{
struct ipv6_mreq imr;
imr.ipv6mr_multiaddr = p_addr->sin6_addr;
imr.ipv6mr_interface = i_if_index;
if ( i_if_addr != INADDR_ANY )
msg_Warn( NULL, "ignoring ifaddr option in IPv6" );
if ( setsockopt( i_handle, IPPROTO_IPV6, IPV6_ADD_MEMBERSHIP,
(char *)&imr, sizeof(struct ipv6_mreq) ) < 0 )
msg_Warn( NULL, "couldn't join multicast group (%s)",
strerror(errno) );
}
}
else
{
struct sockaddr_in *p_addr =
(struct sockaddr_in *)p_bind_ai->ai_addr;
if ( IN_MULTICAST( ntohl(p_addr->sin_addr.s_addr)) )
{
if ( p_connect_ai != NULL )
{
#ifndef IP_ADD_SOURCE_MEMBERSHIP
msg_Err( NULL, "IP_ADD_SOURCE_MEMBERSHIP is unsupported." );
#else
/* Source-specific multicast */
struct sockaddr *p_src = p_connect_ai->ai_addr;
struct ip_mreq_source imr;
imr.imr_multiaddr = p_addr->sin_addr;
imr.imr_interface.s_addr = i_if_addr;
imr.imr_sourceaddr = ((struct sockaddr_in *)p_src)->sin_addr;
if ( i_if_index )
msg_Warn( NULL, "ignoring ifindex option in SSM" );
if ( setsockopt( i_handle, IPPROTO_IP, IP_ADD_SOURCE_MEMBERSHIP,
(char *)&imr, sizeof(struct ip_mreq_source) ) < 0 )
msg_Warn( NULL, "couldn't join multicast group (%s)",
strerror(errno) );
#endif
}
else if ( i_if_index )
{
/* Linux-specific interface-bound multicast */
struct ip_mreqn imr;
imr.imr_multiaddr = p_addr->sin_addr;
#if defined(__linux__)
imr.imr_address.s_addr = i_if_addr;
imr.imr_ifindex = i_if_index;
#endif
if ( setsockopt( i_handle, IPPROTO_IP, IP_ADD_MEMBERSHIP,
(char *)&imr, sizeof(struct ip_mreqn) ) < 0 )
msg_Warn( NULL, "couldn't join multicast group (%s)",
strerror(errno) );
}
else
{
/* Regular multicast */
struct ip_mreq imr;
imr.imr_multiaddr = p_addr->sin_addr;
imr.imr_interface.s_addr = i_if_addr;
if ( setsockopt( i_handle, IPPROTO_IP, IP_ADD_MEMBERSHIP,
(char *)&imr, sizeof(struct ip_mreq) ) == -1 )
msg_Warn( NULL, "couldn't join multicast group (%s)",
strerror(errno) );
}
#ifdef SO_BINDTODEVICE
if (psz_ifname) {
if ( setsockopt( i_handle, SOL_SOCKET, SO_BINDTODEVICE,
psz_ifname, strlen(psz_ifname)+1 ) < 0 ) {
msg_Err( NULL, "couldn't bind to device %s (%s)",
psz_ifname, strerror(errno) );
}
free(psz_ifname);
psz_ifname = NULL;
}
#endif
}
}
freeaddrinfo( p_bind_ai );
if ( p_connect_ai != NULL )
freeaddrinfo( p_connect_ai );
free( psz_save );
msg_Dbg( NULL, "binding socket to %s", psz_udp_src );
}
bool config_ParseHost( output_config_t *p_config, char *psz_string )
{
struct addrinfo *p_ai;
int i_mtu;
p_config->psz_displayname = strdup( psz_string );
p_ai = ParseNodeService( psz_string, &psz_string, DEFAULT_PORT );
if ( p_ai == NULL ) return false;
memcpy( &p_config->connect_addr, p_ai->ai_addr, p_ai->ai_addrlen );
freeaddrinfo( p_ai );
p_config->i_family = p_config->connect_addr.ss_family;
if ( p_config->i_family == AF_UNSPEC ) return false;
if ( psz_string == NULL || !*psz_string ) goto end;
if ( *psz_string == '@' )
{
psz_string++;
p_ai = ParseNodeService( psz_string, &psz_string, 0 );
if ( p_ai == NULL || p_ai->ai_family != p_config->i_family )
msg_Warn( NULL, "invalid bind address" );
else
memcpy( &p_config->bind_addr, p_ai->ai_addr, p_ai->ai_addrlen );
freeaddrinfo( p_ai );
}
while ( (psz_string = strchr( psz_string, '/' )) != NULL )
{
*psz_string++ = '\0';
#define IS_OPTION( option ) (!strncasecmp( psz_string, option, strlen(option) ))
#define ARG_OPTION( option ) (psz_string + strlen(option))
if ( IS_OPTION("udp") )
p_config->i_config |= OUTPUT_UDP;
else if ( IS_OPTION("dvb") )
p_config->i_config |= OUTPUT_DVB;
else if ( IS_OPTION("epg") )
p_config->i_config |= OUTPUT_EPG;
else if ( IS_OPTION("tsid=") )
p_config->i_tsid = strtol( ARG_OPTION("tsid="), NULL, 0 );
else if ( IS_OPTION("retention=") )
p_config->i_max_retention = strtoll( ARG_OPTION("retention="),
NULL, 0 ) * 1000;
else if ( IS_OPTION("latency=") )
p_config->i_output_latency = strtoll( ARG_OPTION("latency="),
NULL, 0 ) * 1000;
else if ( IS_OPTION("ttl=") )
p_config->i_ttl = strtol( ARG_OPTION("ttl="), NULL, 0 );
else if ( IS_OPTION("tos=") )
p_config->i_tos = strtol( ARG_OPTION("tos="), NULL, 0 );
else if ( IS_OPTION("mtu=") )
p_config->i_mtu = strtol( ARG_OPTION("mtu="), NULL, 0 );
else if ( IS_OPTION("ifindex=") )
p_config->i_if_index_v6 = strtol( ARG_OPTION("ifindex="), NULL, 0 );
else if ( IS_OPTION("srvname=") )
{
if ( p_config->psz_service_name )
free( p_config->psz_service_name );
p_config->psz_service_name = config_stropt( ARG_OPTION("srvname=") );
}
else if ( IS_OPTION("srvprovider=") )
{
if ( !p_config->psz_service_provider )
free( p_config->psz_service_provider );
p_config->psz_service_provider = config_stropt( ARG_OPTION("srvprovider=") );
}
else if ( IS_OPTION("ssrc=") )
{
in_addr_t i_addr = inet_addr( ARG_OPTION("ssrc=") );
memcpy( p_config->pi_ssrc, &i_addr, 4 * sizeof(uint8_t) );
}
else
msg_Warn( NULL, "unrecognized option %s", psz_string );
#undef IS_OPTION
#undef ARG_OPTION
}
if ( !p_config->psz_service_provider && psz_provider_name )
p_config->psz_service_provider = strdup( psz_provider_name );
end:
i_mtu = p_config->i_family == AF_INET6 ? DEFAULT_IPV6_MTU :
DEFAULT_IPV4_MTU;
if ( !p_config->i_mtu )
p_config->i_mtu = i_mtu;
else if ( p_config->i_mtu < TS_SIZE + RTP_HEADER_SIZE )
{
msg_Warn( NULL, "invalid MTU %d, setting %d", p_config->i_mtu, i_mtu );
p_config->i_mtu = i_mtu;
}
return true;
}