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Merge branch 'limit_eport_search'

This commit is contained in:
Thomas Bernard 2014-02-28 13:35:49 +01:00
parent 8fc7f0b5e1 3c90f6a30d
commit b71e0c028f
2 changed files with 33 additions and 23 deletions
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1
miniupnpd/Changelog.txt
View File

@ -2,6 +2,7 @@ $Id: Changelog.txt,v 1.354 2014/02/28 12:14:29 nanard Exp $
2014/02/28:
log message when shutting down
natpmp : avoid hang when all external ports in use
2014/02/25:
add implementation of scheduled sendto (asyncsendto) in order

55
miniupnpd/natpmp.c
View File

@ -266,29 +266,38 @@ void ProcessIncomingNATPMPPacket(int s, unsigned char *msg_buff, int len,
} else if(iport==0
|| !check_upnp_rule_against_permissions(upnppermlist, num_upnpperm, eport, senderaddr->sin_addr, iport)) {
resp[3] = 2; /* Not Authorized/Refused */
} else do {
r = get_redirect_rule(ext_if_name, eport, proto,
iaddr_old, sizeof(iaddr_old),
&iport_old, 0, 0, 0, 0,
&timestamp, 0, 0);
if(r==0) {
if(strcmp(senderaddrstr, iaddr_old)==0
&& iport==iport_old) {
/* redirection allready existing */
syslog(LOG_INFO, "port %hu %s already redirected to %s:%hu, replacing",
eport, (proto==IPPROTO_TCP)?"tcp":"udp", iaddr_old, iport_old);
/* remove and then add again */
if(_upnp_delete_redir(eport, proto) < 0) {
syslog(LOG_ERR, "failed to remove port mapping");
break;
} else {
unsigned short eport_first;
char desc[64];
eport_first = eport;
do {
r = get_redirect_rule(ext_if_name, eport, proto,
iaddr_old, sizeof(iaddr_old),
&iport_old, 0, 0, 0, 0,
&timestamp, 0, 0);
if(r==0) {
if(strcmp(senderaddrstr, iaddr_old)==0
&& iport==iport_old) {
/* redirection allready existing */
syslog(LOG_INFO, "port %hu %s already redirected to %s:%hu, replacing",
eport, (proto==IPPROTO_TCP)?"tcp":"udp", iaddr_old, iport_old);
/* remove and then add again */
if(_upnp_delete_redir(eport, proto) < 0) {
syslog(LOG_ERR, "failed to remove port mapping");
break;
}
} else {
eport++;
if(eport == eport_first) { /* no external port available */
syslog(LOG_ERR, "Failed to find available eport for NAT-PMP %hu %s->%s:%hu",
eport, (proto==IPPROTO_TCP)?"tcp":"udp", senderaddrstr, iport);
resp[3] = 3; /* Failure */
break;
}
continue;
}
} else {
eport++;
continue;
}
}
{ /* do the redirection */
char desc[64];
/* do the redirection */
#if 0
timestamp = (unsigned)(time(NULL) - startup_time)
+ lifetime;
@ -314,8 +323,8 @@ void ProcessIncomingNATPMPPacket(int s, unsigned char *msg_buff, int len,
#endif
}
break;
}
} while(r==0);
} while(r==0);
}
*((uint16_t *)(resp+8)) = htons(iport); /* private port */
*((uint16_t *)(resp+10)) = htons(eport); /* public port */
*((uint32_t *)(resp+12)) = htonl(lifetime); /* Port Mapping lifetime */