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set the the don't fragment bit only when mtu discovery is set

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This commit is contained in:
Nikos Mavrogiannopoulos
2015-04-20 22:52:22 +02:00
parent dea550798d
commit 71f0e35699
1 changed files with 10 additions and 8 deletions
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src/main.c
+10 -8
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@@ -432,7 +432,7 @@ listen_ports(void *pool, struct perm_cfg_st* config,
/* Sets the options needed in the UDP socket we forward to
* worker */
static
void set_worker_udp_opts(int fd, int family)
void set_worker_udp_opts(main_server_st *s, int fd, int family)
{
int y;
@@ -449,15 +449,17 @@ int y;
y = 1;
setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const void *) &y, sizeof(y));
if (s->config->try_mtu) {
#if defined(IP_DONTFRAG)
y = 1;
setsockopt(fd, IPPROTO_IP, IP_DONTFRAG,
(const void *) &y, sizeof(y));
y = 1;
setsockopt(fd, IPPROTO_IP, IP_DONTFRAG,
(const void *) &y, sizeof(y));
#elif defined(IP_MTU_DISCOVER)
y = IP_PMTUDISC_DO;
setsockopt(fd, IPPROTO_IP, IP_MTU_DISCOVER,
(const void *) &y, sizeof(y));
y = IP_PMTUDISC_DO;
setsockopt(fd, IPPROTO_IP, IP_MTU_DISCOVER,
(const void *) &y, sizeof(y));
#endif
}
set_cloexec_flag (fd, 1);
return;
@@ -767,7 +769,7 @@ int sfd = -1;
goto fail;
}
set_worker_udp_opts(sfd, listener->family);
set_worker_udp_opts(s, sfd, listener->family);
if (our_addr_size > 0) {
ret = bind(sfd, (struct sockaddr *)&our_addr, our_addr_size);