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/* MiniDLNA media server
* This file is part of MiniDLNA.
*
* The code herein is based on the MiniUPnP Project.
* http://miniupnp.free.fr/ or http://miniupnp.tuxfamily.org/
*
* Copyright (c) 2006, Thomas Bernard
* 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.
* * The name of the author may not 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 OWNER 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.
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <unistd.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <errno.h>
#include "upnpdescstrings.h"
#include "minidlnapath.h"
#include "upnphttp.h"
#include "upnpglobalvars.h"
#include "upnpreplyparse.h"
#include "getifaddr.h"
#include "minissdp.h"
#include "codelength.h"
#include "utils.h"
#include "log.h"
/* SSDP ip/port */
#define SSDP_PORT (1900)
#define SSDP_MCAST_ADDR ("239.255.255.250")
static int
AddMulticastMembership(int s, in_addr_t ifaddr)
{
struct ip_mreq imr; /* Ip multicast membership */
/* setting up imr structure */
imr.imr_multiaddr.s_addr = inet_addr(SSDP_MCAST_ADDR);
/*imr.imr_interface.s_addr = htonl(INADDR_ANY);*/
imr.imr_interface.s_addr = ifaddr; /*inet_addr(ifaddr);*/
if (setsockopt(s, IPPROTO_IP, IP_ADD_MEMBERSHIP, (void *)&imr, sizeof(struct ip_mreq)) < 0)
{
DPRINTF(E_ERROR, L_SSDP, "setsockopt(udp, IP_ADD_MEMBERSHIP): %s\n", strerror(errno));
return -1;
}
return 0;
}
/* Open and configure the socket listening for
* SSDP udp packets sent on 239.255.255.250 port 1900 */
int
OpenAndConfSSDPReceiveSocket()
{
int s;
int i = 1;
struct sockaddr_in sockname;
if( (s = socket(PF_INET, SOCK_DGRAM, 0)) < 0)
{
DPRINTF(E_ERROR, L_SSDP, "socket(udp): %s\n", strerror(errno));
return -1;
}
if(setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &i, sizeof(i)) < 0)
{
DPRINTF(E_WARN, L_SSDP, "setsockopt(udp, SO_REUSEADDR): %s\n", strerror(errno));
}
memset(&sockname, 0, sizeof(struct sockaddr_in));
sockname.sin_family = AF_INET;
sockname.sin_port = htons(SSDP_PORT);
/* NOTE : it seems it doesnt work when binding on the specific address */
/*sockname.sin_addr.s_addr = inet_addr(UPNP_MCAST_ADDR);*/
sockname.sin_addr.s_addr = htonl(INADDR_ANY);
/*sockname.sin_addr.s_addr = inet_addr(ifaddr);*/
if(bind(s, (struct sockaddr *)&sockname, sizeof(struct sockaddr_in)) < 0)
{
DPRINTF(E_ERROR, L_SSDP, "bind(udp): %s\n", strerror(errno));
close(s);
return -1;
}
i = n_lan_addr;
while(i>0)
{
i--;
if(AddMulticastMembership(s, lan_addr[i].addr.s_addr) < 0)
{
DPRINTF(E_WARN, L_SSDP,
"Failed to add multicast membership for address %s\n",
lan_addr[i].str );
}
}
return s;
}
/* open the UDP socket used to send SSDP notifications to
* the multicast group reserved for them */
static int
OpenAndConfSSDPNotifySocket(in_addr_t addr)
{
int s;
unsigned char loopchar = 0;
int bcast = 1;
uint8_t ttl = 4;
struct in_addr mc_if;
struct sockaddr_in sockname;
if( (s = socket(PF_INET, SOCK_DGRAM, 0)) < 0)
{
DPRINTF(E_ERROR, L_SSDP, "socket(udp_notify): %s\n", strerror(errno));
return -1;
}
mc_if.s_addr = addr; /*inet_addr(addr);*/
if(setsockopt(s, IPPROTO_IP, IP_MULTICAST_LOOP, (char *)&loopchar, sizeof(loopchar)) < 0)
{
DPRINTF(E_ERROR, L_SSDP, "setsockopt(udp_notify, IP_MULTICAST_LOOP): %s\n", strerror(errno));
close(s);
return -1;
}
if(setsockopt(s, IPPROTO_IP, IP_MULTICAST_IF, (char *)&mc_if, sizeof(mc_if)) < 0)
{
DPRINTF(E_ERROR, L_SSDP, "setsockopt(udp_notify, IP_MULTICAST_IF): %s\n", strerror(errno));
close(s);
return -1;
}
setsockopt(s, IPPROTO_IP, IP_MULTICAST_TTL, &ttl, sizeof(ttl));
if(setsockopt(s, SOL_SOCKET, SO_BROADCAST, &bcast, sizeof(bcast)) < 0)
{
DPRINTF(E_ERROR, L_SSDP, "setsockopt(udp_notify, SO_BROADCAST): %s\n", strerror(errno));
close(s);
return -1;
}
memset(&sockname, 0, sizeof(struct sockaddr_in));
sockname.sin_family = AF_INET;
sockname.sin_addr.s_addr = addr; /*inet_addr(addr);*/
if (bind(s, (struct sockaddr *)&sockname, sizeof(struct sockaddr_in)) < 0)
{
DPRINTF(E_ERROR, L_SSDP, "bind(udp_notify): %s\n", strerror(errno));
close(s);
return -1;
}
return s;
}
int
OpenAndConfSSDPNotifySockets(int * sockets)
{
int i, j;
for(i=0; i<n_lan_addr; i++)
{
sockets[i] = OpenAndConfSSDPNotifySocket(lan_addr[i].addr.s_addr);
if(sockets[i] < 0)
{
for(j=0; j<i; j++)
{
close(sockets[j]);
sockets[j] = -1;
}
return -1;
}
}
return 0;
}
/*
* response from a LiveBox (Wanadoo)
HTTP/1.1 200 OK
CACHE-CONTROL: max-age=1800
DATE: Thu, 01 Jan 1970 04:03:23 GMT
EXT:
LOCATION: http://192.168.0.1:49152/gatedesc.xml
SERVER: Linux/2.4.17, UPnP/1.0, Intel SDK for UPnP devices /1.2
ST: upnp:rootdevice
USN: uuid:75802409-bccb-40e7-8e6c-fa095ecce13e::upnp:rootdevice
* response from a Linksys 802.11b :
HTTP/1.1 200 OK
Cache-Control:max-age=120
Location:http://192.168.5.1:5678/rootDesc.xml
Server:NT/5.0 UPnP/1.0
ST:upnp:rootdevice
USN:uuid:upnp-InternetGatewayDevice-1_0-0090a2777777::upnp:rootdevice
EXT:
*/
static const char * const known_service_types[] =
{
uuidvalue,
"upnp:rootdevice",
"urn:schemas-upnp-org:device:MediaServer:",
"urn:schemas-upnp-org:service:ContentDirectory:",
"urn:schemas-upnp-org:service:ConnectionManager:",
"urn:microsoft.com:service:X_MS_MediaReceiverRegistrar:",
0
};
static void
_usleep(long usecs)
{
struct timespec sleep_time;
sleep_time.tv_sec = 0;
sleep_time.tv_nsec = usecs * 1000;
nanosleep(&sleep_time, NULL);
}
/* not really an SSDP "announce" as it is the response
* to a SSDP "M-SEARCH" */
static void
SendSSDPAnnounce2(int s, struct sockaddr_in sockname, int st_no,
const char * host, unsigned short port)
{
int l, n;
char buf[512];
/*
* follow guideline from document "UPnP Device Architecture 1.0"
* uppercase is recommended.
* DATE: is recommended
* SERVER: OS/ver UPnP/1.0 minidlna/1.0
* - check what to put in the 'Cache-Control' header
* */
char szTime[30];
time_t tTime = time(NULL);
strftime(szTime, 30,"%a, %d %b %Y %H:%M:%S GMT" , gmtime(&tTime));
l = snprintf(buf, sizeof(buf), "HTTP/1.1 200 OK\r\n"
"CACHE-CONTROL: max-age=%u\r\n"
"DATE: %s\r\n"
"ST: %s%s\r\n"
"USN: %s%s%s%s\r\n"
"EXT:\r\n"
"SERVER: " MINIDLNA_SERVER_STRING "\r\n"
"LOCATION: http://%s:%u" ROOTDESC_PATH "\r\n"
"Content-Length: 0\r\n"
"\r\n",
(runtime_vars.notify_interval<<1)+10,
szTime,
known_service_types[st_no], (st_no>1?"1":""),
uuidvalue, (st_no>0?"::":""), (st_no>0?known_service_types[st_no]:""), (st_no>1?"1":""),
host, (unsigned int)port);
//DEBUG DPRINTF(E_DEBUG, L_SSDP, "Sending M-SEARCH response:\n%s", buf);
n = sendto(s, buf, l, 0,
(struct sockaddr *)&sockname, sizeof(struct sockaddr_in) );
if(n < 0)
{
DPRINTF(E_ERROR, L_SSDP, "sendto(udp): %s\n", strerror(errno));
}
}
static void
SendSSDPNotifies(int s, const char * host, unsigned short port,
unsigned int lifetime)
{
struct sockaddr_in sockname;
int l, n, dup, i=0;
char bufr[512];
memset(&sockname, 0, sizeof(struct sockaddr_in));
sockname.sin_family = AF_INET;
sockname.sin_port = htons(SSDP_PORT);
sockname.sin_addr.s_addr = inet_addr(SSDP_MCAST_ADDR);
for( dup=0; dup<2; dup++ )
{
if( dup )
_usleep(200000);
i=0;
while(known_service_types[i])
{
l = snprintf(bufr, sizeof(bufr),
"NOTIFY * HTTP/1.1\r\n"
"HOST:%s:%d\r\n"
"CACHE-CONTROL:max-age=%u\r\n"
"LOCATION:http://%s:%d" ROOTDESC_PATH"\r\n"
"SERVER: " MINIDLNA_SERVER_STRING "\r\n"
"NT:%s%s\r\n"
"USN:%s%s%s%s\r\n"
"NTS:ssdp:alive\r\n"
"\r\n",
SSDP_MCAST_ADDR, SSDP_PORT,
lifetime,
host, port,
known_service_types[i], (i>1?"1":""),
uuidvalue, (i>0?"::":""), (i>0?known_service_types[i]:""), (i>1?"1":"") );
if(l>=sizeof(bufr))
{
DPRINTF(E_WARN, L_SSDP, "SendSSDPNotifies(): truncated output\n");
l = sizeof(bufr);
}
//DEBUG DPRINTF(E_DEBUG, L_SSDP, "Sending NOTIFY:\n%s", bufr);
n = sendto(s, bufr, l, 0,
(struct sockaddr *)&sockname, sizeof(struct sockaddr_in) );
if(n < 0)
{
DPRINTF(E_ERROR, L_SSDP, "sendto(udp_notify=%d, %s): %s\n", s, host, strerror(errno));
}
i++;
}
}
}
void
SendSSDPNotifies2(int * sockets,
unsigned short port,
unsigned int lifetime)
/*SendSSDPNotifies2(int * sockets, struct lan_addr_s * lan_addr, int n_lan_addr,
unsigned short port,
unsigned int lifetime)*/
{
int i;
DPRINTF(E_DEBUG, L_SSDP, "Sending SSDP notifies\n");
for(i=0; i<n_lan_addr; i++)
{
SendSSDPNotifies(sockets[i], lan_addr[i].str, port, lifetime);
}
}
void
ParseUPnPClient(char *location)
{
char buf[8192];
struct sockaddr_in dest;
int s, n, do_headers = 0, nread = 0;
struct timeval tv;
char *addr, *path, *port_str;
long port = 80;
char *off = NULL, *p;
int content_len = sizeof(buf);
struct NameValueParserData xml;
int client;
enum client_types type = 0;
uint32_t flags = 0;
char *model, *serial, *name;
if (strncmp(location, "http://", 7) != 0)
return;
path = location + 7;
port_str = strsep(&path, "/");
if (!path)
return;
addr = strsep(&port_str, ":");
if (port_str)
{
port = strtol(port_str, NULL, 10);
if (!port)
port = 80;
}
memset(&dest, '\0', sizeof(dest));
if (!inet_aton(addr, &dest.sin_addr))
return;
/* Check if the client is already in cache */
dest.sin_family = AF_INET;
dest.sin_port = htons(port);
s = socket(PF_INET, SOCK_STREAM, 0);
if( s < 0 )
return;
tv.tv_sec = 0;
tv.tv_usec = 500000;
setsockopt(s, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
setsockopt(s, SOL_SOCKET, SO_SNDTIMEO, &tv, sizeof(tv));
if( connect(s, (struct sockaddr*)&dest, sizeof(struct sockaddr_in)) < 0 )
goto close;
n = snprintf(buf, sizeof(buf), "GET /%s HTTP/1.0\r\n"
"HOST: %s:%ld\r\n\r\n",
path, addr, port);
if( write(s, buf, n) < 1 )
goto close;
while( (n = read(s, buf+nread, sizeof(buf)-nread-1)) > 0 )
{
nread += n;
buf[nread] = '\0';
n = nread;
p = buf;
while( !off && n-- > 0 )
{
if(p[0]=='\r' && p[1]=='\n' && p[2]=='\r' && p[3]=='\n')
{
off = p + 4;
do_headers = 1;
}
p++;
}
if( !off )
continue;
if( do_headers )
{
p = buf;
if( strncmp(p, "HTTP/", 5) != 0 )
goto close;
while(*p != ' ' && *p != '\t') p++;
/* If we don't get a 200 status, ignore it */
if( strtol(p, NULL, 10) != 200 )
goto close;
if( (p = strcasestr(p, "Content-Length:")) )
content_len = strtol(p+15, NULL, 10);
do_headers = 0;
}
if( buf + nread - off >= content_len )
break;
}
close:
close(s);
if( !off )
return;
nread -= off - buf;
ParseNameValue(off, nread, &xml);
model = GetValueFromNameValueList(&xml, "modelName");
serial = GetValueFromNameValueList(&xml, "serialNumber");
name = GetValueFromNameValueList(&xml, "friendlyName");
if( model )
{
DPRINTF(E_DEBUG, L_SSDP, "Model: %s\n", model);
if( strstr(model, "Roku SoundBridge") )
{
type = ERokuSoundBridge;
flags |= FLAG_MS_PFS;
flags |= FLAG_AUDIO_ONLY;
flags |= FLAG_MIME_WAV_WAV;
}
else if( strcmp(model, "Samsung DTV DMR") == 0 && serial )
{
DPRINTF(E_DEBUG, L_SSDP, "Serial: %s\n", serial);
/* The Series B I saw was 20081224DMR. Series A should be older than that. */
if( atoi(serial) > 20081200 )
{
type = ESamsungSeriesB;
flags |= FLAG_SAMSUNG;
flags |= FLAG_DLNA;
flags |= FLAG_NO_RESIZE;
}
}
else
{
if( name && (strcmp(name, "marantz DMP") == 0) )
{
type = EMarantzDMP;
flags |= FLAG_DLNA;
flags |= FLAG_MIME_WAV_WAV;
}
}
}
ClearNameValueList(&xml);
if( !type )
return;
/* Add this client to the cache if it's not there already. */
client = SearchClientCache(dest.sin_addr, 1);
if( client < 0 )
{
for( client=0; client<CLIENT_CACHE_SLOTS; client++ )
{
if( clients[client].addr.s_addr )
continue;
get_remote_mac(dest.sin_addr, clients[client].mac);
clients[client].addr = dest.sin_addr;
DPRINTF(E_DEBUG, L_SSDP, "Added client [%d/%s/%02X:%02X:%02X:%02X:%02X:%02X] to cache slot %d.\n",
type, inet_ntoa(clients[client].addr),
clients[client].mac[0], clients[client].mac[1], clients[client].mac[2],
clients[client].mac[3], clients[client].mac[4], clients[client].mac[5], client);
break;
}
}
clients[client].type = type;
clients[client].flags = flags;
clients[client].age = time(NULL);
}
/* ProcessSSDPRequest()
* process SSDP M-SEARCH requests and responds to them */
void
ProcessSSDPRequest(int s, unsigned short port)
{
int n;
char bufr[1500];
socklen_t len_r;
struct sockaddr_in sendername;
int i;
char *st = NULL, *mx = NULL, *man = NULL, *mx_end = NULL;
int man_len = 0;
len_r = sizeof(struct sockaddr_in);
n = recvfrom(s, bufr, sizeof(bufr)-1, 0,
(struct sockaddr *)&sendername, &len_r);
if(n < 0)
{
DPRINTF(E_ERROR, L_SSDP, "recvfrom(udp): %s\n", strerror(errno));
return;
}
bufr[n] = '\0';
if(memcmp(bufr, "NOTIFY", 6) == 0)
{
char *loc = NULL, *srv = NULL, *nts = NULL, *nt = NULL;
int loc_len = 0;
//DEBUG DPRINTF(E_DEBUG, L_SSDP, "Received SSDP notify:\n%.*s", n, bufr);
for(i=0; i < n; i++)
{
if( bufr[i] == '*' )
break;
}
if( !strcasestrc(bufr+i, "HTTP/1.1", '\r') )
return;
while(i < n)
{
while((i < n - 2) && (bufr[i] != '\r' || bufr[i+1] != '\n'))
i++;
i += 2;
if(strncasecmp(bufr+i, "SERVER:", 7) == 0)
{
srv = bufr+i+7;
while(*srv == ' ' || *srv == '\t') srv++;
}
else if(strncasecmp(bufr+i, "LOCATION:", 9) == 0)
{
loc = bufr+i+9;
while(*loc == ' ' || *loc == '\t') loc++;
while(loc[loc_len]!='\r' && loc[loc_len]!='\n') loc_len++;
}
else if(strncasecmp(bufr+i, "NTS:", 4) == 0)
{
nts = bufr+i+4;
while(*nts == ' ' || *nts == '\t') nts++;
}
else if(strncasecmp(bufr+i, "NT:", 3) == 0)
{
nt = bufr+i+3;
while(*nt == ' ' || *nt == '\t') nt++;
}
}
if( !loc || !srv || !nt || !nts || (strncmp(nts, "ssdp:alive", 10) != 0) ||
(strncmp(nt, "urn:schemas-upnp-org:device:MediaRenderer", 41) != 0) )
{
return;
}
loc[loc_len] = '\0';
if( (strncmp(srv, "Allegro-Software-RomPlug", 24) == 0) || /* Roku */
(strstr(loc, "SamsungMRDesc.xml") != NULL) || /* Samsung TV */
(strstrc(srv, "DigiOn DiXiM", '\r') != NULL) ) /* Marantz Receiver */
{
/* Check if the client is already in cache */
i = SearchClientCache(sendername.sin_addr, 1);
if( i >= 0 )
{
if( clients[i].type < EStandardDLNA150 &&
clients[i].type != ESamsungSeriesA )
{
clients[i].age = time(NULL);
return;
}
}
ParseUPnPClient(loc);
}
}
else if(memcmp(bufr, "M-SEARCH", 8) == 0)
{
int st_len = 0, mx_len = 0, mx_val = 0;
//DPRINTF(E_DEBUG, L_SSDP, "Received SSDP request:\n%.*s\n", n, bufr);
for(i=0; i < n; i++)
{
if( bufr[i] == '*' )
break;
}
if( !strcasestrc(bufr+i, "HTTP/1.1", '\r') )
return;
while(i < n)
{
while((i < n - 2) && (bufr[i] != '\r' || bufr[i+1] != '\n'))
i++;
i += 2;
if(strncasecmp(bufr+i, "ST:", 3) == 0)
{
st = bufr+i+3;
st_len = 0;
while(*st == ' ' || *st == '\t') st++;
while(st[st_len]!='\r' && st[st_len]!='\n') st_len++;
}
else if(strncasecmp(bufr+i, "MX:", 3) == 0)
{
mx = bufr+i+3;
mx_len = 0;
while(*mx == ' ' || *mx == '\t') mx++;
while(mx[mx_len]!='\r' && mx[mx_len]!='\n') mx_len++;
mx_val = strtol(mx, &mx_end, 10);
}
else if(strncasecmp(bufr+i, "MAN:", 4) == 0)
{
man = bufr+i+4;
man_len = 0;
while(*man == ' ' || *man == '\t') man++;
while(man[man_len]!='\r' && man[man_len]!='\n') man_len++;
}
}
/*DPRINTF(E_INFO, L_SSDP, "SSDP M-SEARCH packet received from %s:%d\n",
inet_ntoa(sendername.sin_addr),
ntohs(sendername.sin_port) );*/
if( GETFLAG(DLNA_STRICT_MASK) && (ntohs(sendername.sin_port) <= 1024 || ntohs(sendername.sin_port) == 1900) )
{
DPRINTF(E_INFO, L_SSDP, "WARNING: Ignoring invalid SSDP M-SEARCH from %s [bad source port %d]\n",
inet_ntoa(sendername.sin_addr), ntohs(sendername.sin_port));
}
else if( !man || (strncmp(man, "\"ssdp:discover\"", 15) != 0) )
{
DPRINTF(E_INFO, L_SSDP, "WARNING: Ignoring invalid SSDP M-SEARCH from %s [bad %s header '%.*s']\n",
inet_ntoa(sendername.sin_addr), "MAN", man_len, man);
}
else if( !mx || mx == mx_end || mx_val < 0 ) {
DPRINTF(E_INFO, L_SSDP, "WARNING: Ignoring invalid SSDP M-SEARCH from %s [bad %s header '%.*s']\n",
inet_ntoa(sendername.sin_addr), "MX", mx_len, mx);
}
else if( st && (st_len > 0) )
{
int l;
int lan_addr_index = 0;
/* find in which sub network the client is */
for(i = 0; i<n_lan_addr; i++)
{
if( (sendername.sin_addr.s_addr & lan_addr[i].mask.s_addr)
== (lan_addr[i].addr.s_addr & lan_addr[i].mask.s_addr))
{
lan_addr_index = i;
break;
}
}
if( i == n_lan_addr )
{
DPRINTF(E_DEBUG, L_SSDP, "Ignoring SSDP M-SEARCH on other interface [%s]\n",
inet_ntoa(sendername.sin_addr));
return;
}
DPRINTF(E_INFO, L_SSDP, "SSDP M-SEARCH from %s:%d ST: %.*s, MX: %.*s, MAN: %.*s\n",
inet_ntoa(sendername.sin_addr),
ntohs(sendername.sin_port),
st_len, st, mx_len, mx, man_len, man);
/* Responds to request with a device as ST header */
for(i = 0; known_service_types[i]; i++)
{
l = strlen(known_service_types[i]);
if( l <= st_len && (memcmp(st, known_service_types[i], l) == 0))
{
if( st_len != l )
{
/* Check version number - must always be 1 currently. */
if( (st[l-1] == ':') && (st[l] == '1') )
l++;
while( l < st_len )
{
if( !isspace(st[l]) )
{
DPRINTF(E_DEBUG, L_SSDP, "Ignoring SSDP M-SEARCH with bad extra data [%s]\n",
inet_ntoa(sendername.sin_addr));
break;
}
l++;
}
if( l != st_len )
break;
}
_usleep(random()>>20);
SendSSDPAnnounce2(s, sendername,
i,
lan_addr[lan_addr_index].str, port);
break;
}
}
/* Responds to request with ST: ssdp:all */
/* strlen("ssdp:all") == 8 */
if(st_len==8 && (0 == memcmp(st, "ssdp:all", 8)))
{
for(i=0; known_service_types[i]; i++)
{
l = (int)strlen(known_service_types[i]);
SendSSDPAnnounce2(s, sendername,
i,
lan_addr[lan_addr_index].str, port);
}
}
}
else
{
DPRINTF(E_INFO, L_SSDP, "Invalid SSDP M-SEARCH from %s:%d\n",
inet_ntoa(sendername.sin_addr), ntohs(sendername.sin_port));
}
}
else
{
DPRINTF(E_WARN, L_SSDP, "Unknown udp packet received from %s:%d\n",
inet_ntoa(sendername.sin_addr), ntohs(sendername.sin_port));
}
}
/* This will broadcast ssdp:byebye notifications to inform
* the network that UPnP is going down. */
int
SendSSDPGoodbye(int * sockets, int n_sockets)
{
struct sockaddr_in sockname;
int n, l;
int i, j;
int dup, ret = 0;
char bufr[512];
memset(&sockname, 0, sizeof(struct sockaddr_in));
sockname.sin_family = AF_INET;
sockname.sin_port = htons(SSDP_PORT);
sockname.sin_addr.s_addr = inet_addr(SSDP_MCAST_ADDR);
for (dup = 0; dup < 2; dup++)
{
for(j=0; j<n_sockets; j++)
{
for(i=0; known_service_types[i]; i++)
{
l = snprintf(bufr, sizeof(bufr),
"NOTIFY * HTTP/1.1\r\n"
"HOST:%s:%d\r\n"
"NT:%s%s\r\n"
"USN:%s%s%s%s\r\n"
"NTS:ssdp:byebye\r\n"
"\r\n",
SSDP_MCAST_ADDR, SSDP_PORT,
known_service_types[i], (i>1?"1":""),
uuidvalue, (i>0?"::":""), (i>0?known_service_types[i]:""), (i>1?"1":"") );
//DEBUG DPRINTF(E_DEBUG, L_SSDP, "Sending NOTIFY:\n%s", bufr);
n = sendto(sockets[j], bufr, l, 0,
(struct sockaddr *)&sockname, sizeof(struct sockaddr_in) );
if(n < 0)
{
DPRINTF(E_ERROR, L_SSDP, "sendto(udp_shutdown=%d): %s\n", sockets[j], strerror(errno));
ret = -1;
break;
}
}
}
}
return ret;
}
/* SubmitServicesToMiniSSDPD() :
* register services offered by MiniUPnPd to a running instance of
* MiniSSDPd */
int
SubmitServicesToMiniSSDPD(const char * host, unsigned short port) {
struct sockaddr_un addr;
int s;
unsigned char buffer[2048];
char strbuf[256];
unsigned char * p;
int i, l;
s = socket(AF_UNIX, SOCK_STREAM, 0);
if(s < 0) {
DPRINTF(E_ERROR, L_SSDP, "socket(unix): %s", strerror(errno));
return -1;
}
addr.sun_family = AF_UNIX;
strncpy(addr.sun_path, minissdpdsocketpath, sizeof(addr.sun_path));
if(connect(s, (struct sockaddr *)&addr, sizeof(struct sockaddr_un)) < 0) {
DPRINTF(E_ERROR, L_SSDP, "connect(\"%s\"): %s",
minissdpdsocketpath, strerror(errno));
return -1;
}
for(i = 0; known_service_types[i]; i++) {
buffer[0] = 4;
p = buffer + 1;
l = (int)strlen(known_service_types[i]);
if(i > 0)
l++;
CODELENGTH(l, p);
memcpy(p, known_service_types[i], l);
if(i > 0)
p[l-1] = '1';
p += l;
l = snprintf(strbuf, sizeof(strbuf), "%s::%s%s",
uuidvalue, known_service_types[i], (i==0)?"":"1");
CODELENGTH(l, p);
memcpy(p, strbuf, l);
p += l;
l = (int)strlen(MINIDLNA_SERVER_STRING);
CODELENGTH(l, p);
memcpy(p, MINIDLNA_SERVER_STRING, l);
p += l;
l = snprintf(strbuf, sizeof(strbuf), "http://%s:%u" ROOTDESC_PATH,
host, (unsigned int)port);
CODELENGTH(l, p);
memcpy(p, strbuf, l);
p += l;
if(write(s, buffer, p - buffer) < 0) {
DPRINTF(E_ERROR, L_SSDP, "write(): %s", strerror(errno));
return -1;
}
}
close(s);
return 0;
}