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lwip: Add IPV6 multicast group membership socket options

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As described in RFC2133: IPV6_MULTICAST_IF, IPV6_MULTICAST_HOPS,
IPV6_MULTICAST_LOOP, IPV6_MULTICAST_LOOP, IPV6_DROP_MEMBERSHIP.
This commit is contained in:
Angus Gratton
2017-07-10 16:32:20 +08:00
committed by Angus Gratton
parent a3731902f5
commit 961180617e
4 changed files with 151 additions and 38 deletions
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21
components/lwip/include/lwip/lwip/sockets.h
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@@ -262,6 +262,27 @@ struct linger {
*/
#define IPV6_CHECKSUM 7 /* RFC3542: calculate and insert the ICMPv6 checksum for raw sockets. */
#define IPV6_V6ONLY 27 /* RFC3493: boolean control to restrict AF_INET6 sockets to IPv6 communications only. */
#if LWIP_IPV6_MLD
/* Socket options for IPV6 multicast, uses the MLD interface to manage group memberships. RFC2133. */
#define IPV6_MULTICAST_IF 0x300
#define IPV6_MULTICAST_HOPS 0x301
#define IPV6_MULTICAST_LOOP 0x302
#define IPV6_ADD_MEMBERSHIP 0x303
#define IPV6_DROP_MEMBERSHIP 0x304
/* Structure used for IPV6_ADD/DROP_MEMBERSHIP */
typedef struct ip6_mreq {
struct in6_addr ipv6mr_multiaddr; /* IPv6 multicast addr */
struct in6_addr ipv6mr_interface; /* local IP address of interface */
} ip6_mreq;
/* Commonly used synonyms for these options */
#define IPV6_JOIN_GROUP IPV6_ADD_MEMBERSHIP
#define IPV6_LEAVE_GROUP IPV6_DROP_MEMBERSHIP
#endif /* LWIP_IPV6_MLD */
#endif /* LWIP_IPV6 */
#if LWIP_UDP && LWIP_UDPLITE

6
components/lwip/include/lwip/lwip/udp.h
View File

@@ -173,6 +173,12 @@ void udp_init (void);
#define udp_get_multicast_netif_addr(pcb) ip_2_ip4(&(pcb)->multicast_ip)
#define udp_set_multicast_ttl(pcb, value) do { (pcb)->mcast_ttl = value; } while(0)
#define udp_get_multicast_ttl(pcb) ((pcb)->mcast_ttl)
#if LWIP_IPV6_MLD
#define udp_set_multicast_netif_ip6addr(pcb, ip6addr) ip_addr_copy_from_ip6((pcb)->multicast_ip, *(ip6addr))
#define udp_get_multicast_netif_ip6addr(pcb) ip_2_ip6(&(pcb)->multicast_ip)
#endif
#endif /* LWIP_MULTICAST_TX_OPTIONS */
#if UDP_DEBUG