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proper error handling for socket creation

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This commit is contained in:
Martin Willi
2006-09-18 06:44:38 +00:00
parent b9024ee058
commit a7371600b0
1 changed files with 23 additions and 12 deletions
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src/charon/network/socket.c
+23 -12
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@@ -143,8 +143,15 @@ static status_t receiver(private_socket_t *this, packet_t **packet)
fd_set rfds;
FD_ZERO(&rfds);
FD_SET(this->recv4, &rfds);
FD_SET(this->recv6, &rfds);
if (this->recv4)
{
FD_SET(this->recv4, &rfds);
}
if (this->recv6)
{
FD_SET(this->recv6, &rfds);
}
this->logger->log(this->logger, CONTROL|LEVEL1,
"waiting for data on raw sockets");
@@ -157,7 +164,7 @@ static status_t receiver(private_socket_t *this, packet_t **packet)
}
pthread_setcancelstate(oldstate, NULL);
if (FD_ISSET(this->recv4, &rfds))
if (this->recv4 && FD_ISSET(this->recv4, &rfds))
{
/* IPv4 raw sockets return the IP header. We read src/dest
* information directly from the raw header */
@@ -212,7 +219,7 @@ static status_t receiver(private_socket_t *this, packet_t **packet)
memcpy(data.ptr, buffer + data_offset, data.len);
pkt->set_data(pkt, data);
}
else if (FD_ISSET(this->recv6, &rfds))
else if (this->recv6 && FD_ISSET(this->recv6, &rfds))
{
/* IPv6 raw sockets return no IP header. We must query
* src/dest via socket options/ancillary data */
@@ -599,12 +606,15 @@ static int open_send_socket(private_socket_t *this, int family, u_int16_t port)
return 0;
}
/* enable UDP decapsulation globally */
if (setsockopt(skt, SOL_UDP, UDP_ENCAP, &type, sizeof(type)) < 0)
if (family == AF_INET)
{
this->logger->log(this->logger, ERROR,
"unable to set UDP_ENCAP: %s; NAT-T may fail",
strerror(errno));
/* enable UDP decapsulation globally, only for one socket needed */
if (setsockopt(skt, SOL_UDP, UDP_ENCAP, &type, sizeof(type)) < 0)
{
this->logger->log(this->logger, ERROR,
"unable to set UDP_ENCAP: %s; NAT-T may fail",
strerror(errno));
}
}
return skt;
@@ -702,7 +712,8 @@ static int open_recv_socket(private_socket_t *this, int family)
return 0;
}
else if (setsockopt(skt, ip_proto, ip_pktinfo, &on, sizeof(on)) < 0)
if (family == AF_INET6 &&
setsockopt(skt, ip_proto, ip_pktinfo, &on, sizeof(on)) < 0)
{
this->logger->log(this->logger, ERROR,
"unable to set IPV6_PKTINFO on raw socket: %s",
@@ -823,7 +834,7 @@ socket_t *socket_create(u_int16_t port, u_int16_t natt_port)
else
{
this->send6 = open_send_socket(this, AF_INET6, this->port);
if (this->send4 == 0)
if (this->send6 == 0)
{
this->logger->log(this->logger, ERROR,
"could not open IPv6 send socket, IPv6 disabled");
@@ -831,7 +842,7 @@ socket_t *socket_create(u_int16_t port, u_int16_t natt_port)
}
else
{
this->send6_natt = open_send_socket(this, AF_INET, this->natt_port);
this->send6_natt = open_send_socket(this, AF_INET6, this->natt_port);
if (this->send6_natt == 0)
{
this->logger->log(this->logger, ERROR,