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upnpsoap.c
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upnpsoap.c
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/* $Id: upnpsoap.c,v 1.151 2018/03/13 10:32:53 nanard Exp $ */
/* vim: tabstop=4 shiftwidth=4 noexpandtab
* MiniUPnP project
* http://miniupnp.free.fr/ or https://miniupnp.tuxfamily.org/
* (c) 2006-2018 Thomas Bernard
* This software is subject to the conditions detailed
* in the LICENCE file provided within the distribution */
#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include <string.h>
#include <errno.h>
#include <sys/socket.h>
#include <unistd.h>
#include <syslog.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <ctype.h>
#include "macros.h"
#include "config.h"
#include "upnpglobalvars.h"
#include "upnphttp.h"
#include "upnpsoap.h"
#include "upnpreplyparse.h"
#include "upnpredirect.h"
#include "upnppinhole.h"
#include "getifaddr.h"
#include "getifstats.h"
#include "getconnstatus.h"
#include "upnpurns.h"
#include "upnputils.h"
/* utility function */
static int is_numeric(const char * s)
{
while(*s) {
if(*s < '0' || *s > '9') return 0;
s++;
}
return 1;
}
static void
BuildSendAndCloseSoapResp(struct upnphttp * h,
const char * body, int bodylen)
{
static const char beforebody[] =
"<?xml version=\"1.0\"?>\r\n"
"<s:Envelope xmlns:s=\"http://schemas.xmlsoap.org/soap/envelope/\" "
"s:encodingStyle=\"http://schemas.xmlsoap.org/soap/encoding/\">"
"<s:Body>";
static const char afterbody[] =
"</s:Body>"
"</s:Envelope>\r\n";
int r = BuildHeader_upnphttp(h, 200, "OK", sizeof(beforebody) - 1
+ sizeof(afterbody) - 1 + bodylen );
if(r >= 0) {
memcpy(h->res_buf + h->res_buflen, beforebody, sizeof(beforebody) - 1);
h->res_buflen += sizeof(beforebody) - 1;
memcpy(h->res_buf + h->res_buflen, body, bodylen);
h->res_buflen += bodylen;
memcpy(h->res_buf + h->res_buflen, afterbody, sizeof(afterbody) - 1);
h->res_buflen += sizeof(afterbody) - 1;
} else {
BuildResp2_upnphttp(h, 500, "Internal Server Error", NULL, 0);
}
SendRespAndClose_upnphttp(h);
}
static void
GetConnectionTypeInfo(struct upnphttp * h, const char * action, const char * ns)
{
#if 0
static const char resp[] =
"<u:GetConnectionTypeInfoResponse "
"xmlns:u=\"" SERVICE_TYPE_WANIPC "\">"
"<NewConnectionType>IP_Routed</NewConnectionType>"
"<NewPossibleConnectionTypes>IP_Routed</NewPossibleConnectionTypes>"
"</u:GetConnectionTypeInfoResponse>";
#endif
static const char resp[] =
"<u:%sResponse "
"xmlns:u=\"%s\">"
"<NewConnectionType>IP_Routed</NewConnectionType>"
"<NewPossibleConnectionTypes>IP_Routed</NewPossibleConnectionTypes>"
"</u:%sResponse>";
char body[512];
int bodylen;
bodylen = snprintf(body, sizeof(body), resp,
action, ns, action);
BuildSendAndCloseSoapResp(h, body, bodylen);
}
/* maximum value for a UPNP ui4 type variable */
#define UPNP_UI4_MAX (4294967295ul)
static void
GetTotalBytesSent(struct upnphttp * h, const char * action, const char * ns)
{
int r;
static const char resp[] =
"<u:%sResponse "
"xmlns:u=\"%s\">"
"<NewTotalBytesSent>%lu</NewTotalBytesSent>"
"</u:%sResponse>";
char body[512];
int bodylen;
struct ifdata data;
r = getifstats(ext_if_name, &data);
bodylen = snprintf(body, sizeof(body), resp,
action, ns, /* was "urn:schemas-upnp-org:service:WANCommonInterfaceConfig:1" */
#ifdef UPNP_STRICT
r<0?0:(data.obytes & UPNP_UI4_MAX), action);
#else /* UPNP_STRICT */
r<0?0:data.obytes, action);
#endif /* UPNP_STRICT */
BuildSendAndCloseSoapResp(h, body, bodylen);
}
static void
GetTotalBytesReceived(struct upnphttp * h, const char * action, const char * ns)
{
int r;
static const char resp[] =
"<u:%sResponse "
"xmlns:u=\"%s\">"
"<NewTotalBytesReceived>%lu</NewTotalBytesReceived>"
"</u:%sResponse>";
char body[512];
int bodylen;
struct ifdata data;
r = getifstats(ext_if_name, &data);
/* TotalBytesReceived
* This variable represents the cumulative counter for total number of
* bytes received downstream across all connection service instances on
* WANDevice. The count rolls over to 0 after it reaching the maximum
* value (2^32)-1. */
bodylen = snprintf(body, sizeof(body), resp,
action, ns, /* was "urn:schemas-upnp-org:service:WANCommonInterfaceConfig:1" */
#ifdef UPNP_STRICT
r<0?0:(data.ibytes & UPNP_UI4_MAX), action);
#else /* UPNP_STRICT */
r<0?0:data.ibytes, action);
#endif /* UPNP_STRICT */
BuildSendAndCloseSoapResp(h, body, bodylen);
}
static void
GetTotalPacketsSent(struct upnphttp * h, const char * action, const char * ns)
{
int r;
static const char resp[] =
"<u:%sResponse "
"xmlns:u=\"%s\">"
"<NewTotalPacketsSent>%lu</NewTotalPacketsSent>"
"</u:%sResponse>";
char body[512];
int bodylen;
struct ifdata data;
r = getifstats(ext_if_name, &data);
bodylen = snprintf(body, sizeof(body), resp,
action, ns,/*"urn:schemas-upnp-org:service:WANCommonInterfaceConfig:1",*/
#ifdef UPNP_STRICT
r<0?0:(data.opackets & UPNP_UI4_MAX), action);
#else /* UPNP_STRICT */
r<0?0:data.opackets, action);
#endif /* UPNP_STRICT */
BuildSendAndCloseSoapResp(h, body, bodylen);
}
static void
GetTotalPacketsReceived(struct upnphttp * h, const char * action, const char * ns)
{
int r;
static const char resp[] =
"<u:%sResponse "
"xmlns:u=\"%s\">"
"<NewTotalPacketsReceived>%lu</NewTotalPacketsReceived>"
"</u:%sResponse>";
char body[512];
int bodylen;
struct ifdata data;
r = getifstats(ext_if_name, &data);
bodylen = snprintf(body, sizeof(body), resp,
action, ns, /* was "urn:schemas-upnp-org:service:WANCommonInterfaceConfig:1" */
#ifdef UPNP_STRICT
r<0?0:(data.ipackets & UPNP_UI4_MAX), action);
#else /* UPNP_STRICT */
r<0?0:data.ipackets, action);
#endif /* UPNP_STRICT */
BuildSendAndCloseSoapResp(h, body, bodylen);
}
static void
GetCommonLinkProperties(struct upnphttp * h, const char * action, const char * ns)
{
/* WANAccessType : set depending on the hardware :
* DSL, POTS (plain old Telephone service), Cable, Ethernet */
static const char resp[] =
"<u:%sResponse "
"xmlns:u=\"%s\">"
"<NewWANAccessType>%s</NewWANAccessType>"
"<NewLayer1UpstreamMaxBitRate>%lu</NewLayer1UpstreamMaxBitRate>"
"<NewLayer1DownstreamMaxBitRate>%lu</NewLayer1DownstreamMaxBitRate>"
"<NewPhysicalLinkStatus>%s</NewPhysicalLinkStatus>"
"</u:%sResponse>";
char body[2048];
int bodylen;
struct ifdata data;
const char * status = "Up"; /* Up, Down (Required),
* Initializing, Unavailable (Optional) */
const char * wan_access_type = "Cable"; /* DSL, POTS, Cable, Ethernet */
char ext_ip_addr[INET_ADDRSTRLEN];
if((downstream_bitrate == 0) || (upstream_bitrate == 0))
{
if(getifstats(ext_if_name, &data) >= 0)
{
if(downstream_bitrate == 0) downstream_bitrate = data.baudrate;
if(upstream_bitrate == 0) upstream_bitrate = data.baudrate;
}
}
if(getifaddr(ext_if_name, ext_ip_addr, INET_ADDRSTRLEN, NULL, NULL) < 0) {
status = "Down";
}
bodylen = snprintf(body, sizeof(body), resp,
action, ns, /* was "urn:schemas-upnp-org:service:WANCommonInterfaceConfig:1" */
wan_access_type,
upstream_bitrate, downstream_bitrate,
status, action);
BuildSendAndCloseSoapResp(h, body, bodylen);
}
static void
GetStatusInfo(struct upnphttp * h, const char * action, const char * ns)
{
static const char resp[] =
"<u:%sResponse "
"xmlns:u=\"%s\">"
"<NewConnectionStatus>%s</NewConnectionStatus>"
"<NewLastConnectionError>ERROR_NONE</NewLastConnectionError>"
"<NewUptime>%ld</NewUptime>"
"</u:%sResponse>";
char body[512];
int bodylen;
time_t uptime;
const char * status;
/* ConnectionStatus possible values :
* Unconfigured, Connecting, Connected, PendingDisconnect,
* Disconnecting, Disconnected */
status = get_wan_connection_status_str(ext_if_name);
uptime = upnp_get_uptime();
bodylen = snprintf(body, sizeof(body), resp,
action, ns, /*SERVICE_TYPE_WANIPC,*/
status, (long)uptime, action);
BuildSendAndCloseSoapResp(h, body, bodylen);
}
static void
GetNATRSIPStatus(struct upnphttp * h, const char * action, const char * ns)
{
#if 0
static const char resp[] =
"<u:GetNATRSIPStatusResponse "
"xmlns:u=\"" SERVICE_TYPE_WANIPC "\">"
"<NewRSIPAvailable>0</NewRSIPAvailable>"
"<NewNATEnabled>1</NewNATEnabled>"
"</u:GetNATRSIPStatusResponse>";
UNUSED(action);
#endif
static const char resp[] =
"<u:%sResponse "
"xmlns:u=\"%s\">"
"<NewRSIPAvailable>0</NewRSIPAvailable>"
"<NewNATEnabled>1</NewNATEnabled>"
"</u:%sResponse>";
char body[512];
int bodylen;
/* 2.2.9. RSIPAvailable
* This variable indicates if Realm-specific IP (RSIP) is available
* as a feature on the InternetGatewayDevice. RSIP is being defined
* in the NAT working group in the IETF to allow host-NATing using
* a standard set of message exchanges. It also allows end-to-end
* applications that otherwise break if NAT is introduced
* (e.g. IPsec-based VPNs).
* A gateway that does not support RSIP should set this variable to 0. */
bodylen = snprintf(body, sizeof(body), resp,
action, ns, /*SERVICE_TYPE_WANIPC,*/
action);
BuildSendAndCloseSoapResp(h, body, bodylen);
}
static void
GetExternalIPAddress(struct upnphttp * h, const char * action, const char * ns)
{
static const char resp[] =
"<u:%sResponse "
"xmlns:u=\"%s\">"
"<NewExternalIPAddress>%s</NewExternalIPAddress>"
"</u:%sResponse>";
char body[512];
int bodylen;
char ext_ip_addr[INET_ADDRSTRLEN];
/* Does that method need to work with IPv6 ?
* There is usually no NAT with IPv6 */
#ifndef MULTIPLE_EXTERNAL_IP
if(use_ext_ip_addr)
{
strncpy(ext_ip_addr, use_ext_ip_addr, INET_ADDRSTRLEN);
ext_ip_addr[INET_ADDRSTRLEN - 1] = '\0';
}
else if(getifaddr(ext_if_name, ext_ip_addr, INET_ADDRSTRLEN, NULL, NULL) < 0)
{
syslog(LOG_ERR, "Failed to get ip address for interface %s",
ext_if_name);
strncpy(ext_ip_addr, "0.0.0.0", INET_ADDRSTRLEN);
}
#else
struct lan_addr_s * lan_addr;
strncpy(ext_ip_addr, "0.0.0.0", INET_ADDRSTRLEN);
for(lan_addr = lan_addrs.lh_first; lan_addr != NULL; lan_addr = lan_addr->list.le_next)
{
if( (h->clientaddr.s_addr & lan_addr->mask.s_addr)
== (lan_addr->addr.s_addr & lan_addr->mask.s_addr))
{
strncpy(ext_ip_addr, lan_addr->ext_ip_str, INET_ADDRSTRLEN);
break;
}
}
#endif
bodylen = snprintf(body, sizeof(body), resp,
action, ns, /*SERVICE_TYPE_WANIPC,*/
ext_ip_addr, action);
BuildSendAndCloseSoapResp(h, body, bodylen);
}
/* AddPortMapping method of WANIPConnection Service
* Ignored argument : NewEnabled */
static void
AddPortMapping(struct upnphttp * h, const char * action, const char * ns)
{
int r;
/*static const char resp[] =
"<u:AddPortMappingResponse "
"xmlns:u=\"" SERVICE_TYPE_WANIPC "\"/>";*/
static const char resp[] =
"<u:%sResponse "
"xmlns:u=\"%s\"/>";
char body[512];
int bodylen;
struct NameValueParserData data;
char * int_ip, * int_port, * ext_port, * protocol, * desc;
char * leaseduration_str;
unsigned int leaseduration;
char * r_host;
unsigned short iport, eport;
struct hostent *hp; /* getbyhostname() */
char ** ptr; /* getbyhostname() */
struct in_addr result_ip;/*unsigned char result_ip[16];*/ /* inet_pton() */
ParseNameValue(h->req_buf + h->req_contentoff, h->req_contentlen, &data);
int_ip = GetValueFromNameValueList(&data, "NewInternalClient");
if (int_ip) {
/* trim */
while(int_ip[0] == ' ')
int_ip++;
}
#ifdef UPNP_STRICT
if (!int_ip || int_ip[0] == '\0')
{
ClearNameValueList(&data);
SoapError(h, 402, "Invalid Args");
return;
}
#endif
/* IGD 2 MUST support both wildcard and specific IP address values
* for RemoteHost (only the wildcard value was REQUIRED in release 1.0) */
r_host = GetValueFromNameValueList(&data, "NewRemoteHost");
#ifndef SUPPORT_REMOTEHOST
#ifdef UPNP_STRICT
if (r_host && (strlen(r_host) > 0) && (0 != strcmp(r_host, "*")))
{
ClearNameValueList(&data);
SoapError(h, 726, "RemoteHostOnlySupportsWildcard");
return;
}
#endif
#endif
#ifndef UPNP_STRICT
/* if <NewInternalClient> arg is empty, use client address
* see https://github.com/miniupnp/miniupnp/issues/236 */
if (!int_ip || int_ip[0] == '\0')
{
int_ip = h->clientaddr_str;
memcpy(&result_ip, &(h->clientaddr), sizeof(struct in_addr));
}
else
#endif
/* if ip not valid assume hostname and convert */
if (inet_pton(AF_INET, int_ip, &result_ip) <= 0)
{
hp = gethostbyname(int_ip);
if(hp && hp->h_addrtype == AF_INET)
{
for(ptr = hp->h_addr_list; ptr && *ptr; ptr++)
{
int_ip = inet_ntoa(*((struct in_addr *) *ptr));
result_ip = *((struct in_addr *) *ptr);
/* TODO : deal with more than one ip per hostname */
break;
}
}
else
{
syslog(LOG_ERR, "Failed to convert hostname '%s' to ip address", int_ip);
ClearNameValueList(&data);
SoapError(h, 402, "Invalid Args");
return;
}
}
/* check if NewInternalAddress is the client address */
if(GETFLAG(SECUREMODEMASK))
{
if(h->clientaddr.s_addr != result_ip.s_addr)
{
syslog(LOG_INFO, "Client %s tried to redirect port to %s",
inet_ntoa(h->clientaddr), int_ip);
ClearNameValueList(&data);
SoapError(h, 718, "ConflictInMappingEntry");
return;
}
}
int_port = GetValueFromNameValueList(&data, "NewInternalPort");
ext_port = GetValueFromNameValueList(&data, "NewExternalPort");
protocol = GetValueFromNameValueList(&data, "NewProtocol");
desc = GetValueFromNameValueList(&data, "NewPortMappingDescription");
leaseduration_str = GetValueFromNameValueList(&data, "NewLeaseDuration");
if (!int_port || !ext_port || !protocol)
{
ClearNameValueList(&data);
SoapError(h, 402, "Invalid Args");
return;
}
eport = (unsigned short)atoi(ext_port);
iport = (unsigned short)atoi(int_port);
if (strcmp(ext_port, "*") == 0 || eport == 0)
{
ClearNameValueList(&data);
SoapError(h, 716, "Wildcard not permited in ExtPort");
return;
}
leaseduration = leaseduration_str ? atoi(leaseduration_str) : 0;
#ifdef IGD_V2
/* PortMappingLeaseDuration can be either a value between 1 and
* 604800 seconds or the zero value (for infinite lease time).
* Note that an infinite lease time can be only set by out-of-band
* mechanisms like WWW-administration, remote management or local
* management.
* If a control point uses the value 0 to indicate an infinite lease
* time mapping, it is REQUIRED that gateway uses the maximum value
* instead (e.g. 604800 seconds) */
if(leaseduration == 0 || leaseduration > 604800)
leaseduration = 604800;
#endif
syslog(LOG_INFO, "%s: ext port %hu to %s:%hu protocol %s for: %s leaseduration=%u rhost=%s",
action, eport, int_ip, iport, protocol, desc, leaseduration,
r_host ? r_host : "NULL");
r = upnp_redirect(r_host, eport, int_ip, iport, protocol, desc, leaseduration);
ClearNameValueList(&data);
/* possible error codes for AddPortMapping :
* 402 - Invalid Args
* 501 - Action Failed
* 715 - Wildcard not permited in SrcAddr
* 716 - Wildcard not permited in ExtPort
* 718 - ConflictInMappingEntry
* 724 - SamePortValuesRequired (deprecated in IGD v2)
* 725 - OnlyPermanentLeasesSupported
The NAT implementation only supports permanent lease times on
port mappings (deprecated in IGD v2)
* 726 - RemoteHostOnlySupportsWildcard
RemoteHost must be a wildcard and cannot be a specific IP
address or DNS name (deprecated in IGD v2)
* 727 - ExternalPortOnlySupportsWildcard
ExternalPort must be a wildcard and cannot be a specific port
value (deprecated in IGD v2)
* 728 - NoPortMapsAvailable
There are not enough free ports available to complete the mapping
(added in IGD v2)
* 729 - ConflictWithOtherMechanisms (added in IGD v2) */
switch(r)
{
case 0: /* success */
bodylen = snprintf(body, sizeof(body), resp,
action, ns/*SERVICE_TYPE_WANIPC*/);
BuildSendAndCloseSoapResp(h, body, bodylen);
break;
case -4:
#ifdef IGD_V2
SoapError(h, 729, "ConflictWithOtherMechanisms");
break;
#endif /* IGD_V2 */
case -2: /* already redirected */
case -3: /* not permitted */
SoapError(h, 718, "ConflictInMappingEntry");
break;
default:
SoapError(h, 501, "ActionFailed");
}
}
/* AddAnyPortMapping was added in WANIPConnection v2 */
static void
AddAnyPortMapping(struct upnphttp * h, const char * action, const char * ns)
{
int r;
static const char resp[] =
"<u:%sResponse "
"xmlns:u=\"%s\">"
"<NewReservedPort>%hu</NewReservedPort>"
"</u:%sResponse>";
char body[512];
int bodylen;
struct NameValueParserData data;
const char * int_ip, * int_port, * ext_port, * protocol, * desc;
const char * r_host;
unsigned short iport, eport;
const char * leaseduration_str;
unsigned int leaseduration;
struct hostent *hp; /* getbyhostname() */
char ** ptr; /* getbyhostname() */
struct in_addr result_ip;/*unsigned char result_ip[16];*/ /* inet_pton() */
ParseNameValue(h->req_buf + h->req_contentoff, h->req_contentlen, &data);
r_host = GetValueFromNameValueList(&data, "NewRemoteHost");
ext_port = GetValueFromNameValueList(&data, "NewExternalPort");
protocol = GetValueFromNameValueList(&data, "NewProtocol");
int_port = GetValueFromNameValueList(&data, "NewInternalPort");
int_ip = GetValueFromNameValueList(&data, "NewInternalClient");
/* NewEnabled */
desc = GetValueFromNameValueList(&data, "NewPortMappingDescription");
leaseduration_str = GetValueFromNameValueList(&data, "NewLeaseDuration");
leaseduration = leaseduration_str ? atoi(leaseduration_str) : 0;
if(leaseduration == 0)
leaseduration = 604800;
if (!int_ip || !ext_port || !int_port)
{
ClearNameValueList(&data);
SoapError(h, 402, "Invalid Args");
return;
}
eport = (unsigned short)atoi(ext_port);
iport = (unsigned short)atoi(int_port);
if(iport == 0 || !is_numeric(ext_port)) {
ClearNameValueList(&data);
SoapError(h, 402, "Invalid Args");
return;
}
#ifndef SUPPORT_REMOTEHOST
#ifdef UPNP_STRICT
if (r_host && (strlen(r_host) > 0) && (0 != strcmp(r_host, "*")))
{
ClearNameValueList(&data);
SoapError(h, 726, "RemoteHostOnlySupportsWildcard");
return;
}
#endif
#endif
/* if ip not valid assume hostname and convert */
if (inet_pton(AF_INET, int_ip, &result_ip) <= 0)
{
hp = gethostbyname(int_ip);
if(hp && hp->h_addrtype == AF_INET)
{
for(ptr = hp->h_addr_list; ptr && *ptr; ptr++)
{
int_ip = inet_ntoa(*((struct in_addr *) *ptr));
result_ip = *((struct in_addr *) *ptr);
/* TODO : deal with more than one ip per hostname */
break;
}
}
else
{
syslog(LOG_ERR, "Failed to convert hostname '%s' to ip address", int_ip);
ClearNameValueList(&data);
SoapError(h, 402, "Invalid Args");
return;
}
}
/* check if NewInternalAddress is the client address */
if(GETFLAG(SECUREMODEMASK))
{
if(h->clientaddr.s_addr != result_ip.s_addr)
{
syslog(LOG_INFO, "Client %s tried to redirect port to %s",
inet_ntoa(h->clientaddr), int_ip);
ClearNameValueList(&data);
SoapError(h, 606, "Action not authorized");
return;
}
}
/* TODO : accept a different external port
* have some smart strategy to choose the port */
for(;;) {
r = upnp_redirect(r_host, eport, int_ip, iport, protocol, desc, leaseduration);
if(r==-2 && eport < 65535) {
eport++;
} else {
break;
}
}
ClearNameValueList(&data);
switch(r)
{
case 0: /* success */
bodylen = snprintf(body, sizeof(body), resp,
action, ns, /*SERVICE_TYPE_WANIPC,*/
eport, action);
BuildSendAndCloseSoapResp(h, body, bodylen);
break;
case -2: /* already redirected */
SoapError(h, 718, "ConflictInMappingEntry");
break;
case -3: /* not permitted */
SoapError(h, 606, "Action not authorized");
break;
default:
SoapError(h, 501, "ActionFailed");
}
}
static void
GetSpecificPortMappingEntry(struct upnphttp * h, const char * action, const char * ns)
{
int r;
static const char resp[] =
"<u:%sResponse "
"xmlns:u=\"%s\">"
"<NewInternalPort>%u</NewInternalPort>"
"<NewInternalClient>%s</NewInternalClient>"
"<NewEnabled>1</NewEnabled>"
"<NewPortMappingDescription>%s</NewPortMappingDescription>"
"<NewLeaseDuration>%u</NewLeaseDuration>"
"</u:%sResponse>";
char body[1024];
int bodylen;
struct NameValueParserData data;
const char * r_host, * ext_port, * protocol;
unsigned short eport, iport;
char int_ip[32];
char desc[64];
unsigned int leaseduration = 0;
ParseNameValue(h->req_buf + h->req_contentoff, h->req_contentlen, &data);
r_host = GetValueFromNameValueList(&data, "NewRemoteHost");
ext_port = GetValueFromNameValueList(&data, "NewExternalPort");
protocol = GetValueFromNameValueList(&data, "NewProtocol");
#ifdef UPNP_STRICT
if(!ext_port || !protocol || !r_host)
#else
if(!ext_port || !protocol)
#endif
{
ClearNameValueList(&data);
SoapError(h, 402, "Invalid Args");
return;
}
#ifndef SUPPORT_REMOTEHOST
#ifdef UPNP_STRICT
if (r_host && (strlen(r_host) > 0) && (0 != strcmp(r_host, "*")))
{
ClearNameValueList(&data);
SoapError(h, 726, "RemoteHostOnlySupportsWildcard");
return;
}
#endif
#endif
eport = (unsigned short)atoi(ext_port);
if(eport == 0)
{
ClearNameValueList(&data);
SoapError(h, 402, "Invalid Args");
return;
}
/* TODO : add r_host as an input parameter ...
* We prevent several Port Mapping with same external port
* but different remoteHost to be set up, so that is not
* a priority. */
r = upnp_get_redirection_infos(eport, protocol, &iport,
int_ip, sizeof(int_ip),
desc, sizeof(desc),
NULL, 0,
&leaseduration);
if(r < 0)
{
SoapError(h, 714, "NoSuchEntryInArray");
}
else
{
syslog(LOG_INFO, "%s: rhost='%s' %s %s found => %s:%u desc='%s'",
action,
r_host ? r_host : "NULL", ext_port, protocol, int_ip,
(unsigned int)iport, desc);
bodylen = snprintf(body, sizeof(body), resp,
action, ns/*SERVICE_TYPE_WANIPC*/,
(unsigned int)iport, int_ip, desc, leaseduration,
action);
BuildSendAndCloseSoapResp(h, body, bodylen);
}
ClearNameValueList(&data);
}
static void
DeletePortMapping(struct upnphttp * h, const char * action, const char * ns)
{
int r;
/*static const char resp[] =
"<u:DeletePortMappingResponse "
"xmlns:u=\"" SERVICE_TYPE_WANIPC "\">"
"</u:DeletePortMappingResponse>";*/
static const char resp[] =
"<u:%sResponse "
"xmlns:u=\"%s\">"
"</u:%sResponse>";
char body[512];
int bodylen;
struct NameValueParserData data;
const char * ext_port, * protocol;
unsigned short eport;
#ifdef UPNP_STRICT
const char * r_host;
#endif /* UPNP_STRICT */
ParseNameValue(h->req_buf + h->req_contentoff, h->req_contentlen, &data);
ext_port = GetValueFromNameValueList(&data, "NewExternalPort");
protocol = GetValueFromNameValueList(&data, "NewProtocol");
#ifdef UPNP_STRICT
r_host = GetValueFromNameValueList(&data, "NewRemoteHost");
#endif /* UPNP_STRICT */
#ifdef UPNP_STRICT
if(!ext_port || !protocol || !r_host)
#else
if(!ext_port || !protocol)
#endif /* UPNP_STRICT */
{
ClearNameValueList(&data);
SoapError(h, 402, "Invalid Args");
return;
}
#ifndef SUPPORT_REMOTEHOST
#ifdef UPNP_STRICT
if (r_host && (strlen(r_host) > 0) && (0 != strcmp(r_host, "*")))
{
ClearNameValueList(&data);
SoapError(h, 726, "RemoteHostOnlySupportsWildcard");
return;
}
#endif /* UPNP_STRICT */
#endif /* SUPPORT_REMOTEHOST */
eport = (unsigned short)atoi(ext_port);
if(eport == 0)
{
ClearNameValueList(&data);
SoapError(h, 402, "Invalid Args");
return;
}
syslog(LOG_INFO, "%s: external port: %hu, protocol: %s",
action, eport, protocol);
/* if in secure mode, check the IP
* Removing a redirection is not a security threat,
* just an annoyance for the user using it. So this is not
* a priority. */
if(GETFLAG(SECUREMODEMASK))
{
char int_ip[32];
struct in_addr int_ip_addr;
unsigned short iport;
unsigned int leaseduration = 0;
r = upnp_get_redirection_infos(eport, protocol, &iport,
int_ip, sizeof(int_ip),
NULL, 0, NULL, 0,
&leaseduration);
if(r >= 0)
{
if(inet_pton(AF_INET, int_ip, &int_ip_addr) > 0)
{
if(h->clientaddr.s_addr != int_ip_addr.s_addr)
{
SoapError(h, 606, "Action not authorized");
/*SoapError(h, 714, "NoSuchEntryInArray");*/
ClearNameValueList(&data);
return;
}
}
}
}
r = upnp_delete_redirection(eport, protocol);
if(r < 0)
{
SoapError(h, 714, "NoSuchEntryInArray");
}
else
{
bodylen = snprintf(body, sizeof(body), resp,
action, ns, action);
BuildSendAndCloseSoapResp(h, body, bodylen);
}
ClearNameValueList(&data);
}
/* DeletePortMappingRange was added in IGD spec v2 */
static void
DeletePortMappingRange(struct upnphttp * h, const char * action, const char * ns)
{
int r = -1;
/*static const char resp[] =
"<u:DeletePortMappingRangeResponse "
"xmlns:u=\"" SERVICE_TYPE_WANIPC "\">"
"</u:DeletePortMappingRangeResponse>";*/
static const char resp[] =
"<u:%sResponse "
"xmlns:u=\"%s\">"
"</u:%sResponse>";
char body[512];
int bodylen;
struct NameValueParserData data;
const char * protocol;
const char * startport_s, * endport_s;
unsigned short startport, endport;
/*int manage;*/
unsigned short * port_list;
unsigned int i, number = 0;
ParseNameValue(h->req_buf + h->req_contentoff, h->req_contentlen, &data);
startport_s = GetValueFromNameValueList(&data, "NewStartPort");
endport_s = GetValueFromNameValueList(&data, "NewEndPort");
protocol = GetValueFromNameValueList(&data, "NewProtocol");
/*manage = atoi(GetValueFromNameValueList(&data, "NewManage"));*/
if(startport_s == NULL || endport_s == NULL || protocol == NULL ||
!is_numeric(startport_s) || !is_numeric(endport_s)) {
SoapError(h, 402, "Invalid Args");
ClearNameValueList(&data);
return;
}
startport = (unsigned short)atoi(startport_s);
endport = (unsigned short)atoi(endport_s);
/* possible errors :
606 - Action not authorized
730 - PortMappingNotFound
733 - InconsistentParameter
*/
if(startport > endport)
{
SoapError(h, 733, "InconsistentParameter");
ClearNameValueList(&data);
return;
}
syslog(LOG_INFO, "%s: deleting external ports: %hu-%hu, protocol: %s",
action, startport, endport, protocol);
port_list = upnp_get_portmappings_in_range(startport, endport,
protocol, &number);
if(number == 0)
{
SoapError(h, 730, "PortMappingNotFound");
ClearNameValueList(&data);
free(port_list);
return;
}
for(i = 0; i < number; i++)
{
r = upnp_delete_redirection(port_list[i], protocol);
syslog(LOG_INFO, "%s: deleting external port: %hu, protocol: %s: %s",
action, port_list[i], protocol, r < 0 ? "failed" : "ok");
}
free(port_list);
bodylen = snprintf(body, sizeof(body), resp,
action, ns, action);
BuildSendAndCloseSoapResp(h, body, bodylen);
ClearNameValueList(&data);
}
static void
GetGenericPortMappingEntry(struct upnphttp * h, const char * action, const char * ns)
{
int r;
static const char resp[] =
"<u:%sResponse "
"xmlns:u=\"%s\">"
"<NewRemoteHost>%s</NewRemoteHost>"
"<NewExternalPort>%u</NewExternalPort>"
"<NewProtocol>%s</NewProtocol>"
"<NewInternalPort>%u</NewInternalPort>"
"<NewInternalClient>%s</NewInternalClient>"
"<NewEnabled>1</NewEnabled>"
"<NewPortMappingDescription>%s</NewPortMappingDescription>"
"<NewLeaseDuration>%u</NewLeaseDuration>"
"</u:%sResponse>";
long int index = 0;
unsigned short eport, iport;
const char * m_index;
char * endptr;
char protocol[8], iaddr[32];
char desc[64];
char rhost[40];
unsigned int leaseduration = 0;
struct NameValueParserData data;
ParseNameValue(h->req_buf + h->req_contentoff, h->req_contentlen, &data);
m_index = GetValueFromNameValueList(&data, "NewPortMappingIndex");
if(!m_index)
{
ClearNameValueList(&data);
SoapError(h, 402, "Invalid Args");
return;
}
errno = 0; /* To distinguish success/failure after call */
index = strtol(m_index, &endptr, 10);
if((errno == ERANGE && (index == LONG_MAX || index == LONG_MIN))
|| (errno != 0 && index == 0) || (m_index == endptr))
{
/* should condition (*endptr != '\0') be also an error ? */
if(m_index == endptr)