From b598160c2f1162658ea948284aee5b53951a3b9e Mon Sep 17 00:00:00 2001 From: Micael Karlberg Date: Tue, 24 Jul 2018 12:29:22 +0200 Subject: [socket-nif] Add support for socket (level ipv6) option unicast_hops Added support for the IPv6 socket option UNICAST_HOPS. OTP-14831. --- erts/doc/src/socket_usage.xml | 7 ++++++ erts/emulator/nifs/common/socket_nif.c | 44 +++++++++++++++++++++++++++++++++ erts/preloaded/ebin/socket.beam | Bin 57524 -> 57664 bytes erts/preloaded/src/socket.erl | 12 ++++++--- 4 files changed, 60 insertions(+), 3 deletions(-) (limited to 'erts') diff --git a/erts/doc/src/socket_usage.xml b/erts/doc/src/socket_usage.xml index 09a65c7152..383aebdab1 100644 --- a/erts/doc/src/socket_usage.xml +++ b/erts/doc/src/socket_usage.xml @@ -509,6 +509,13 @@ yes type = dgram | raw, requires superuser privileges to update + + unicast_hops + default | uint8() + yes + yes + none + v6only boolean() diff --git a/erts/emulator/nifs/common/socket_nif.c b/erts/emulator/nifs/common/socket_nif.c index 6a2904f75f..5aba0bca03 100644 --- a/erts/emulator/nifs/common/socket_nif.c +++ b/erts/emulator/nifs/common/socket_nif.c @@ -549,6 +549,7 @@ typedef union { #define SOCKET_OPT_IPV6_MULTICAST_LOOP 21 #define SOCKET_OPT_IPV6_RECVPKTINFO 25 // PKTINFO on FreeBSD #define SOCKET_OPT_IPV6_RTHDR 28 +#define SOCKET_OPT_IPV6_UNICAST_HOPS 30 #define SOCKET_OPT_IPV6_V6ONLY 32 #define SOCKET_OPT_TCP_CONGESTION 1 @@ -1270,6 +1271,11 @@ static ERL_NIF_TERM nsetopt_lvl_ipv6_rthdr(ErlNifEnv* env, SocketDescriptor* descP, ERL_NIF_TERM eVal); #endif +#if defined(IPV6_UNICAST_HOPS) +static ERL_NIF_TERM nsetopt_lvl_ipv6_unicast_hops(ErlNifEnv* env, + SocketDescriptor* descP, + ERL_NIF_TERM eVal); +#endif #if defined(IPV6_V6ONLY) static ERL_NIF_TERM nsetopt_lvl_ipv6_v6only(ErlNifEnv* env, SocketDescriptor* descP, @@ -1595,6 +1601,10 @@ static ERL_NIF_TERM ngetopt_lvl_ipv6_recvpktinfo(ErlNifEnv* env, static ERL_NIF_TERM ngetopt_lvl_ipv6_rthdr(ErlNifEnv* env, SocketDescriptor* descP); #endif +#if defined(IPV6_UNICAST_HOPS) +static ERL_NIF_TERM ngetopt_lvl_ipv6_unicast_hops(ErlNifEnv* env, + SocketDescriptor* descP); +#endif #if defined(IPV6_V6ONLY) static ERL_NIF_TERM ngetopt_lvl_ipv6_v6only(ErlNifEnv* env, SocketDescriptor* descP); @@ -5667,6 +5677,12 @@ ERL_NIF_TERM nsetopt_lvl_ipv6(ErlNifEnv* env, break; #endif +#if defined(IPV6_UNICAST_HOPS) + case SOCKET_OPT_IPV6_UNICAST_HOPS: + result = nsetopt_lvl_ipv6_unicast_hops(env, descP, eVal); + break; +#endif + #if defined(IPV6_V6ONLY) case SOCKET_OPT_IPV6_V6ONLY: result = nsetopt_lvl_ipv6_v6only(env, descP, eVal); @@ -5878,6 +5894,18 @@ ERL_NIF_TERM nsetopt_lvl_ipv6_rthdr(ErlNifEnv* env, #endif +#if defined(IPV6_UNICAST_HOPS) +static +ERL_NIF_TERM nsetopt_lvl_ipv6_unicast_hops(ErlNifEnv* env, + SocketDescriptor* descP, + ERL_NIF_TERM eVal) +{ + return nsetopt_int_opt(env, descP, SOL_IPV6, IPV6_UNICAST_HOPS, eVal); +} +#endif + + + #if defined(IPV6_V6ONLY) static ERL_NIF_TERM nsetopt_lvl_ipv6_v6only(ErlNifEnv* env, @@ -8277,6 +8305,12 @@ ERL_NIF_TERM ngetopt_lvl_ipv6(ErlNifEnv* env, break; #endif +#if defined(IPV6_UNICAST_HOPS) + case SOCKET_OPT_IPV6_UNICAST_HOPS: + result = ngetopt_lvl_ipv6_unicast_hops(env, descP); + break; +#endif + #if defined(IPV6_V6ONLY) case SOCKET_OPT_IPV6_V6ONLY: result = ngetopt_lvl_ipv6_v6only(env, descP); @@ -8442,6 +8476,16 @@ ERL_NIF_TERM ngetopt_lvl_ipv6_rthdr(ErlNifEnv* env, #endif +#if defined(IPV6_UNICAST_HOPS) +static +ERL_NIF_TERM ngetopt_lvl_ipv6_unicast_hops(ErlNifEnv* env, + SocketDescriptor* descP) +{ + return ngetopt_int_opt(env, descP, SOL_IPV6, IPV6_UNICAST_HOPS); +} +#endif + + #if defined(IPV6_V6ONLY) static ERL_NIF_TERM ngetopt_lvl_ipv6_v6only(ErlNifEnv* env, diff --git a/erts/preloaded/ebin/socket.beam b/erts/preloaded/ebin/socket.beam index f0788f2378..5ab64f442f 100644 Binary files a/erts/preloaded/ebin/socket.beam and b/erts/preloaded/ebin/socket.beam differ diff --git a/erts/preloaded/src/socket.erl b/erts/preloaded/src/socket.erl index 95bd5ce094..3bc3c7dc28 100644 --- a/erts/preloaded/src/socket.erl +++ b/erts/preloaded/src/socket.erl @@ -659,7 +659,7 @@ %% -define(SOCKET_OPT_IPV6_ROUTER_ALERT, 27). -define(SOCKET_OPT_IPV6_RTHDR, 28). %% -define(SOCKET_OPT_IPV6_TCLASS, 29). -%% -define(SOCKET_OPT_IPV6_UNICAST_HOPS, 30). +-define(SOCKET_OPT_IPV6_UNICAST_HOPS, 30). %% -define(SOCKET_OPT_IPV6_USE_MIN_MTU, 31). -define(SOCKET_OPT_IPV6_V6ONLY, 32). @@ -2300,6 +2300,12 @@ enc_setopt_value(ipv6, Opt, V, _D, _T, _P) enc_setopt_value(ipv6, rthdr, V, _D, T, _P) when is_boolean(V) andalso ((T =:= dgram) orelse (T =:= raw)) -> V; +enc_setopt_value(ipv6, unicast_hops, V, _D, _T, _P) + when (V =:= default) -> + -1; +enc_setopt_value(ipv6, unicast_hops, V, _D, _T, _P) + when is_integer(V) andalso (V >= 0) andalso (V =< 255) -> + V; enc_setopt_value(ipv6, v6only, V, _D, _T, _P) when is_boolean(V) -> V; enc_setopt_value(ipv6 = L, Opt, V, _D, _T, _P) -> @@ -2750,8 +2756,8 @@ enc_sockopt_key(ipv6 = _L, rthdr = _Opt, _Dir, _D, T, _P) ?SOCKET_OPT_IPV6_RTHDR; enc_sockopt_key(ipv6 = L, tclass = Opt, _Dir, _D, _T, _P) -> not_supported({L, Opt}); -enc_sockopt_key(ipv6 = L, unicast_hops = Opt, _Dir, _D, _T, _P) -> - not_supported({L, Opt}); +enc_sockopt_key(ipv6 = _L, unicast_hops = _Opt, _Dir, _D, _T, _P) -> + ?SOCKET_OPT_IPV6_UNICAST_HOPS; enc_sockopt_key(ipv6 = L, use_min_mtu = Opt, _Dir, _D, _T, _P) -> not_supported({L, Opt}); enc_sockopt_key(ipv6 = _L, v6only = _Opt, _Dir, _D, _T, _P) -> -- cgit v1.2.3