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allow multicast socket options IP_MULTICAST_TTL, IP_MULTICAST_IF and IP_MULTICAST_LOOP to be used without IGMP

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sg
2015-08-05 22:52:23 +02:00
parent 9352988c44
commit 4edade8079
9 changed files with 52 additions and 29 deletions
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8
src/core/ipv4/ip4.c
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@@ -101,7 +101,7 @@ struct ip_globals ip_data;
/** The IP header ID of the next outgoing IP packet */
static u16_t ip_id;
#if LWIP_IGMP
#if LWIP_MULTICAST_TX_OPTIONS
/** The default netif used for multicast */
static struct netif* ip4_default_multicast_netif;
@@ -111,7 +111,7 @@ ip4_set_default_multicast_netif(struct netif* default_multicast_netif)
{
ip4_default_multicast_netif = default_multicast_netif;
}
#endif /* LWIP_IGMP */
#endif /* LWIP_MULTICAST_TX_OPTIONS */
/**
* Finds the appropriate network interface for a given IP address. It
@@ -895,11 +895,11 @@ err_t ip4_output_if_opt_src(struct pbuf *p, const ip4_addr_t *src, const ip4_add
LWIP_DEBUGF(IP_DEBUG, ("netif_loop_output()"));
return netif_loop_output(netif, p);
}
#if LWIP_IGMP
#if LWIP_MULTICAST_TX_OPTIONS
if ((p->flags & PBUF_FLAG_MCASTLOOP) != 0) {
netif_loop_output(netif, p);
}
#endif /* LWIP_IGMP */
#endif /* LWIP_MULTICAST_TX_OPTIONS */
#endif /* ENABLE_LOOPBACK */
#if IP_FRAG
/* don't fragment if interface has mtu set to 0 [loopif] */