static void
SendSSDPNotifies(int s, const char * host, unsigned short http_port,
unsigned int lifetime, int ipv6)
#endif
{
#ifdef ENABLE_IPV6
struct sockaddr_storage sockname;
#else
struct sockaddr_in sockname;
#endif
socklen_t sockname_len;
const char * dest_str;
int i=0;
char ver_str[4];
memset(&sockname, 0, sizeof(sockname));
#ifdef ENABLE_IPV6
if(ipv6)
{
struct sockaddr_in6 * p = (struct sockaddr_in6 *)&sockname;
sockname_len = sizeof(struct sockaddr_in6);
p->sin6_family = AF_INET6;
p->sin6_port = htons(SSDP_PORT);
inet_pton(AF_INET6, LL_SSDP_MCAST_ADDR, &(p->sin6_addr));
dest_str = "[" LL_SSDP_MCAST_ADDR "]";
/* TODO : also send to SL_SSDP_MCAST_ADDR and GL_SSDP_MCAST_ADDR ? */
/* UPnP Device Architecture 1.1 :
* Devices MUST multicast SSDP messages for each of the UPnP-enabled
* interfaces. The scope of multicast SSDP messages MUST be
* link local FF02::C if the message is sent from a link local address.
* If the message is sent from a global address it MUST be multicast
* using either global scope FF0E::C or site local scope FF05::C.
* In networks with complex topologies and overlapping sites, use of
* global scope is RECOMMENDED. */
}
else
#endif
{
struct sockaddr_in *p = (struct sockaddr_in *)&sockname;
sockname_len = sizeof(struct sockaddr_in);
p->sin_family = AF_INET;
p->sin_port = htons(SSDP_PORT);
p->sin_addr.s_addr = inet_addr(SSDP_MCAST_ADDR);
dest_str = SSDP_MCAST_ADDR;
}
while(known_service_types[i].s)
{
if(i==0)
ver_str[0] = '\0';
else
snprintf(ver_str, sizeof(ver_str), "%d", known_service_types[i].version);
SendSSDPNotify(s, (struct sockaddr *)&sockname, sockname_len, dest_str,
host, http_port,
#ifdef ENABLE_HTTPS
https_port,
#endif
known_service_types[i].s, ver_str, /* NT: */
known_service_types[i].uuid, "::",
known_service_types[i].s, /* ver_str, USN: */
lifetime);
if(0==memcmp(known_service_types[i].s,
"urn:schemas-upnp-org:device", sizeof("urn:schemas-upnp-org:device")-1))
{
SendSSDPNotify(s, (struct sockaddr *)&sockname, sockname_len, dest_str,
host, http_port,
#ifdef ENABLE_HTTPS
https_port,
#endif
known_service_types[i].uuid, "", /* NT: */
known_service_types[i].uuid, "", "", /* ver_str, USN: */
lifetime);
}
i++;
}
}
static void
SendSSDPNotifies(int s, const char * host, unsigned short http_port,
unsigned int lifetime, int ipv6)
#endif
{
#ifdef ENABLE_IPV6
struct sockaddr_storage sockname;
/* UDA 1.1 AnnexA and UDA 2.0 only allow/define the use of
* Link-Local and Site-Local multicast scopes */
static struct { const char * p1, * p2; } const mcast_addrs[] =
{ { LL_SSDP_MCAST_ADDR, "[" LL_SSDP_MCAST_ADDR "]" }, /* Link Local */
{ SL_SSDP_MCAST_ADDR, "[" SL_SSDP_MCAST_ADDR "]" }, /* Site Local */
#ifndef UPNP_STRICT
{ GL_SSDP_MCAST_ADDR, "[" GL_SSDP_MCAST_ADDR "]" }, /* Global */
#endif /* ! UPNP_STRICT */
{ NULL, NULL } };
int j;
#else /* ENABLE_IPV6 */
struct sockaddr_in sockname;
#endif /* ENABLE_IPV6 */
socklen_t sockname_len;
const char * dest_str;
int i;
char ver_str[4];
#ifndef ENABLE_IPV6
UNUSED(ipv6);
#endif /* ENABLE_IPV6 */
memset(&sockname, 0, sizeof(sockname));
#ifdef ENABLE_IPV6
/* first iterate destinations for this LAN interface (only 1 for IPv4) */
for(j = 0; (mcast_addrs[j].p1 != 0 && ipv6) || j < 1; j++) {
if(ipv6) {
struct sockaddr_in6 * p = (struct sockaddr_in6 *)&sockname;
sockname_len = sizeof(struct sockaddr_in6);
p->sin6_family = AF_INET6;
p->sin6_port = htons(SSDP_PORT);
inet_pton(AF_INET6, mcast_addrs[j].p1, &(p->sin6_addr));
dest_str = mcast_addrs[j].p2;
/* UPnP Device Architecture 1.1 :
* Devices MUST multicast SSDP messages for each of the UPnP-enabled
* interfaces. The scope of multicast SSDP messages MUST be
* link local FF02::C if the message is sent from a link local address.
* If the message is sent from a global address it MUST be multicast
* using either global scope FF0E::C or site local scope FF05::C.
* In networks with complex topologies and overlapping sites, use of
* global scope is RECOMMENDED. */
} else {
#else /* ENABLE_IPV6 */
{
#endif /* ENABLE_IPV6 */
/* IPv4 */
struct sockaddr_in *p = (struct sockaddr_in *)&sockname;
sockname_len = sizeof(struct sockaddr_in);
p->sin_family = AF_INET;
p->sin_port = htons(SSDP_PORT);
p->sin_addr.s_addr = inet_addr(SSDP_MCAST_ADDR);
dest_str = SSDP_MCAST_ADDR;
}
/* iterate all services / devices */
for(i = 0; known_service_types[i].s; i++) {
if(i==0)
ver_str[0] = '\0';
else
snprintf(ver_str, sizeof(ver_str), "%d", known_service_types[i].version);
SendSSDPNotify(s, (struct sockaddr *)&sockname, sockname_len, dest_str,
host, http_port,
#ifdef ENABLE_HTTPS
https_port,
#endif
known_service_types[i].s, ver_str, /* NT: */
known_service_types[i].uuid, "::",
known_service_types[i].s, /* ver_str, USN: */
lifetime);
/* for devices, also send NOTIFY on the uuid */
if(0==memcmp(known_service_types[i].s,
"urn:schemas-upnp-org:device", sizeof("urn:schemas-upnp-org:device")-1)) {
SendSSDPNotify(s, (struct sockaddr *)&sockname, sockname_len, dest_str,
host, http_port,
#ifdef ENABLE_HTTPS
https_port,
#endif
known_service_types[i].uuid, "", /* NT: */
known_service_types[i].uuid, "", "", /* ver_str, USN: */
lifetime);
}
} /* for(i = 0; known_service_types[i].s; i++) */
#ifdef ENABLE_IPV6
} /* for(j = 0; (mcast_addrs[j].p1 != 0 && ipv6) || j < 1; j++) */
#endif /* ENABLE_IPV6 */
}
/* SendSSDPNotifies2() sends SSDP NOTIFY packets on all interfaces
* for all destinations, all devices / services */
void
SendSSDPNotifies2(int * sockets,
unsigned short http_port,
#ifdef ENABLE_HTTPS
unsigned short https_port,
#endif
unsigned int lifetime)
{
int i;
struct lan_addr_s * lan_addr;
for(i = 0, lan_addr = lan_addrs.lh_first;
lan_addr != NULL;
lan_addr = lan_addr->list.le_next) {
SendSSDPNotifies(sockets[i], lan_addr->str, http_port,
#ifdef ENABLE_HTTPS
https_port,
#endif
lifetime, 0);
i++;
#ifdef ENABLE_IPV6
if(sockets[i] >= 0) {
SendSSDPNotifies(sockets[i], ipv6_addr_for_http_with_brackets, http_port,
#ifdef ENABLE_HTTPS
https_port,
#endif
lifetime, 1);
}
i++;
#endif /* ENABLE_IPV6 */
}
}
