diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/charon/network/socket.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/charon/network/socket.c b/src/charon/network/socket.c index dc5aff8d0..0cd57aad3 100644 --- a/src/charon/network/socket.c +++ b/src/charon/network/socket.c @@ -60,6 +60,15 @@ #define IP_IPSEC_POLICY 16 #endif /*IP_IPSEC_POLICY*/ +/* from linux/udp.h */ +#ifndef UDP_ENCAP +#define UDP_ENCAP 100 +#endif /*UDP_ENCAP*/ + +#ifndef UDP_ENCAP_ESPINUDP +#define UDP_ENCAP_ESPINUDP 2 +#endif /*UDP_ENCAP_ESPINUDP*/ + typedef struct private_socket_t private_socket_t; /** @@ -380,6 +389,17 @@ static status_t initialize(private_socket_t *this) { this->logger->log(this->logger, ERROR, "unable to setup send socket on port %d!", this->natt_port); return FAILED; + } else { + int type = UDP_ENCAP_ESPINUDP; + if (setsockopt(this->natt_fd, SOL_UDP, UDP_ENCAP, &type, sizeof(type)) < 0 + && errno == ENOPROTOOPT) + { + this->logger->log(this->logger, ERROR, "unable to set UDP_ENCAP on natt send socket!"); + close(this->natt_fd); + close(this->send_fd); + close(this->raw_fd); + return FAILED; + } } return SUCCESS; |