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Add netconn_join_leave_group_netif() that takes netif index as argument

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This commit is contained in:
Dirk Ziegelmeier 2017-08-21 09:42:57 +02:00
parent d0e0afb46a
commit f457769fe8
4 changed files with 107 additions and 0 deletions
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42
src/api/api_lib.c
View File

@ -1129,6 +1129,48 @@ netconn_join_leave_group(struct netconn *conn,
return err;
}
/**
* @ingroup netconn_udp
* Join multicast groups for UDP netconns.
*
* @param conn the UDP netconn for which to change multicast addresses
* @param multiaddr IP address of the multicast group to join or leave
* @param if_idx the index of the netif
* @param join_or_leave flag whether to send a join- or leave-message
* @return ERR_OK if the action was taken, any err_t on error
*/
err_t
netconn_join_leave_group_netif(struct netconn *conn,
const ip_addr_t *multiaddr,
u8_t if_idx,
enum netconn_igmp join_or_leave)
{
API_MSG_VAR_DECLARE(msg);
err_t err;
LWIP_ERROR("netconn_join_leave_group: invalid conn", (conn != NULL), return ERR_ARG;);
API_MSG_VAR_ALLOC(msg);
#if LWIP_IPV4
/* Don't propagate NULL pointer (IP_ADDR_ANY alias) to subsequent functions */
if (multiaddr == NULL) {
multiaddr = IP4_ADDR_ANY;
}
if (if_idx == NETIF_NO_INDEX) {
return ERR_IF;
}
#endif /* LWIP_IPV4 */
API_MSG_VAR_REF(msg).conn = conn;
API_MSG_VAR_REF(msg).msg.jl.multiaddr = API_MSG_VAR_REF(multiaddr);
API_MSG_VAR_REF(msg).msg.jl.if_idx = if_idx;
API_MSG_VAR_REF(msg).msg.jl.join_or_leave = join_or_leave;
err = netconn_apimsg(lwip_netconn_do_join_leave_group_netif, &API_MSG_VAR_REF(msg));
API_MSG_VAR_FREE(msg);
return err;
}
#endif /* LWIP_IGMP || (LWIP_IPV6 && LWIP_IPV6_MLD) */
#if LWIP_DNS

61
src/api/api_msg.c
View File

@ -1995,6 +1995,67 @@ lwip_netconn_do_join_leave_group(void *m)
}
TCPIP_APIMSG_ACK(msg);
}
/**
* Join multicast groups for UDP netconns.
* Called from netconn_join_leave_group_netif
*
* @param m the api_msg pointing to the connection
*/
void
lwip_netconn_do_join_leave_group_netif(void *m)
{
struct api_msg *msg = (struct api_msg*)m;
struct netif *netif;
if (msg->msg.jl.if_idx == NETIF_NO_INDEX) {
msg->err = ERR_IF;
goto done;
}
netif = netif_get_by_index(msg->msg.jl.if_idx);
if (netif == NULL) {
msg->err = ERR_IF;
goto done;
}
msg->err = ERR_CONN;
if (msg->conn->pcb.tcp != NULL) {
if (NETCONNTYPE_GROUP(msg->conn->type) == NETCONN_UDP) {
#if LWIP_UDP
#if LWIP_IPV6 && LWIP_IPV6_MLD
if (NETCONNTYPE_ISIPV6(msg->conn->type)) {
if (msg->msg.jl.join_or_leave == NETCONN_JOIN) {
msg->err = mld6_joingroup_netif(netif,
ip_2_ip6(API_EXPR_REF(msg->msg.jl.multiaddr)));
} else {
msg->err = mld6_leavegroup_netif(netif,
ip_2_ip6(API_EXPR_REF(msg->msg.jl.multiaddr)));
}
}
else
#endif /* LWIP_IPV6 && LWIP_IPV6_MLD */
{
#if LWIP_IGMP
if (msg->msg.jl.join_or_leave == NETCONN_JOIN) {
msg->err = igmp_joingroup_netif(netif,
ip_2_ip4(API_EXPR_REF(msg->msg.jl.multiaddr)));
} else {
msg->err = igmp_leavegroup_netif(netif,
ip_2_ip4(API_EXPR_REF(msg->msg.jl.multiaddr)));
}
#endif /* LWIP_IGMP */
}
#endif /* LWIP_UDP */
#if (LWIP_TCP || LWIP_RAW)
} else {
msg->err = ERR_VAL;
#endif /* (LWIP_TCP || LWIP_RAW) */
}
}
done:
TCPIP_APIMSG_ACK(msg);
}
#endif /* LWIP_IGMP || (LWIP_IPV6 && LWIP_IPV6_MLD) */
#if LWIP_DNS

2
src/include/lwip/api.h
View File

@ -341,6 +341,8 @@ err_t netconn_shutdown(struct netconn *conn, u8_t shut_rx, u8_t shut_tx);
#if LWIP_IGMP || (LWIP_IPV6 && LWIP_IPV6_MLD)
err_t netconn_join_leave_group(struct netconn *conn, const ip_addr_t *multiaddr,
const ip_addr_t *netif_addr, enum netconn_igmp join_or_leave);
err_t netconn_join_leave_group_netif(struct netconn *conn, const ip_addr_t *multiaddr,
u8_t if_idx, enum netconn_igmp join_or_leave);
#endif /* LWIP_IGMP || (LWIP_IPV6 && LWIP_IPV6_MLD) */
#if LWIP_DNS
#if LWIP_IPV4 && LWIP_IPV6

2
src/include/lwip/priv/api_msg.h
View File

@ -139,6 +139,7 @@ struct api_msg {
struct {
API_MSG_M_DEF_C(ip_addr_t, multiaddr);
API_MSG_M_DEF_C(ip_addr_t, netif_addr);
u8_t if_idx;
enum netconn_igmp join_or_leave;
} jl;
#endif /* LWIP_IGMP || (LWIP_IPV6 && LWIP_IPV6_MLD) */
@ -205,6 +206,7 @@ void lwip_netconn_do_close (void *m);
void lwip_netconn_do_shutdown (void *m);
#if LWIP_IGMP || (LWIP_IPV6 && LWIP_IPV6_MLD)
void lwip_netconn_do_join_leave_group(void *m);
void lwip_netconn_do_join_leave_group_netif(void *m);
#endif /* LWIP_IGMP || (LWIP_IPV6 && LWIP_IPV6_MLD) */
#if LWIP_DNS