From ea680e88b967440b2ecd925321ebb5dd48461608 Mon Sep 17 00:00:00 2001
From: Micael Karlberg <bmk@erlang.org>
Date: Thu, 12 Jul 2018 10:42:19 +0200
Subject: [socket-nif] Add support for socket (level ip) option multicast_all

Added support for the IP option MULTICAST_ALL.

OTP-14831
---
 erts/emulator/nifs/common/socket_nif.c | 53 ++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)

(limited to 'erts/emulator')

diff --git a/erts/emulator/nifs/common/socket_nif.c b/erts/emulator/nifs/common/socket_nif.c
index 65e530adee..a2bebcd621 100644
--- a/erts/emulator/nifs/common/socket_nif.c
+++ b/erts/emulator/nifs/common/socket_nif.c
@@ -366,6 +366,7 @@ typedef union {
 #define SOCKET_OPT_IP_DROP_MEMBERSHIP  5
 #define SOCKET_OPT_IP_MTU             11
 #define SOCKET_OPT_IP_MTU_DISCOVER    12
+#define SOCKET_OPT_IP_MULTICAST_ALL   13
 #define SOCKET_OPT_IP_MULTICAST_IF    14
 #define SOCKET_OPT_IP_MULTICAST_LOOP  15
 #define SOCKET_OPT_IP_MULTICAST_TTL   16
@@ -872,6 +873,11 @@ static ERL_NIF_TERM nsetopt_lvl_ip_mtu_discover(ErlNifEnv*        env,
                                                 SocketDescriptor* descP,
                                                 ERL_NIF_TERM      eVal);
 #endif
+#if defined(IP_MULTICAST_ALL)
+static ERL_NIF_TERM nsetopt_lvl_ip_multicast_all(ErlNifEnv*        env,
+                                                 SocketDescriptor* descP,
+                                                 ERL_NIF_TERM      eVal);
+#endif
 #if defined(IP_MULTICAST_IF)
 static ERL_NIF_TERM nsetopt_lvl_ip_multicast_if(ErlNifEnv*        env,
                                                 SocketDescriptor* descP,
@@ -1063,6 +1069,10 @@ static ERL_NIF_TERM ngetopt_lvl_ip_mtu(ErlNifEnv*        env,
 static ERL_NIF_TERM ngetopt_lvl_ip_mtu_discover(ErlNifEnv*        env,
                                                 SocketDescriptor* descP);
 #endif
+#if defined(IP_MULTICAST_ALL)
+static ERL_NIF_TERM ngetopt_lvl_ip_multicast_all(ErlNifEnv*        env,
+                                                 SocketDescriptor* descP);
+#endif
 #if defined(IP_MULTICAST_IF)
 static ERL_NIF_TERM ngetopt_lvl_ip_multicast_if(ErlNifEnv*        env,
                                                 SocketDescriptor* descP);
@@ -4232,6 +4242,25 @@ ERL_NIF_TERM nsetopt_lvl_ip_mtu_discover(ErlNifEnv*        env,
 #endif
 
 
+/* nsetopt_lvl_ip_multicast_all - Level IP MULTICAST_ALL option
+ */
+#if defined(IP_MULTICAST_ALL)
+static
+ERL_NIF_TERM nsetopt_lvl_ip_multicast_all(ErlNifEnv*        env,
+                                          SocketDescriptor* descP,
+                                          ERL_NIF_TERM      eVal)
+{
+#if defined(SOL_IP)
+    int level = SOL_IP;
+#else
+    int level = IPPROTO_IP;
+#endif
+
+    return nsetopt_bool_opt(env, descP, level, IP_MULTICAST_ALL, eVal);
+}
+#endif
+
+
 /* nsetopt_lvl_ip_multicast_if - Level IP MULTICAST_IF option
  *
  * The value is either the atom 'any' or a 4-tuple.
@@ -5550,6 +5579,12 @@ ERL_NIF_TERM ngetopt_lvl_ip(ErlNifEnv*        env,
         break;
 #endif
 
+#if defined(IP_MULTICAST_ALL)
+    case SOCKET_OPT_IP_MULTICAST_ALL:
+        result = ngetopt_lvl_ip_multicast_all(env, descP);
+        break;
+#endif
+
 #if defined(IP_MULTICAST_IF)
     case SOCKET_OPT_IP_MULTICAST_IF:
         result = ngetopt_lvl_ip_multicast_if(env, descP);
@@ -5653,6 +5688,24 @@ ERL_NIF_TERM ngetopt_lvl_ip_mtu_discover(ErlNifEnv*        env,
 #endif
 
 
+/* ngetopt_lvl_ip_multicast_all - Level IP MULTICAST_ALL option
+ */
+#if defined(IP_MULTICAST_ALL)
+static
+ERL_NIF_TERM ngetopt_lvl_ip_multicast_all(ErlNifEnv*        env,
+                                          SocketDescriptor* descP)
+{
+#if defined(SOL_IP)
+    int level = SOL_IP;
+#else
+    int level = IPPROTO_IP;
+#endif
+
+    return ngetopt_bool_opt(env, descP, level, IP_MULTICAST_ALL);
+}
+#endif
+
+
 /* ngetopt_lvl_ip_multicast_if - Level IP MULTICAST_IF option
  */
 #if defined(IP_MULTICAST_IF)
-- 
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