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| author | Micael Karlberg <[email protected]> | 2018-07-11 18:20:06 +0200 |
|---|---|---|
| committer | Micael Karlberg <[email protected]> | 2018-09-18 14:50:18 +0200 |
| commit | e5a5cb1025270c265baeda89dd4cd13a1417a262 (patch) | |
| tree | 59039c851ec3d18b4e286eafdb16b9be92114d41 /erts/emulator | |
| parent | 4d29dde851fb30d86c194961f93e148198ae456d (diff) | |
| download | otp-e5a5cb1025270c265baeda89dd4cd13a1417a262.tar.gz otp-e5a5cb1025270c265baeda89dd4cd13a1417a262.tar.bz2 otp-e5a5cb1025270c265baeda89dd4cd13a1417a262.zip | |
[socket-nif] Add support for socket (level ip) option mtu
Added support for the IP option MTU.
OTP-14831
Diffstat (limited to 'erts/emulator')
| -rw-r--r-- | erts/emulator/nifs/common/socket_nif.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/erts/emulator/nifs/common/socket_nif.c b/erts/emulator/nifs/common/socket_nif.c index 267151083f..6b9f27aa3f 100644 --- a/erts/emulator/nifs/common/socket_nif.c +++ b/erts/emulator/nifs/common/socket_nif.c @@ -364,6 +364,7 @@ typedef union { #define SOCKET_OPT_IP_ADD_MEMBERSHIP 1 #define SOCKET_OPT_IP_DROP_MEMBERSHIP 5 +#define SOCKET_OPT_IP_MTU 11 #define SOCKET_OPT_IP_MULTICAST_IF 14 #define SOCKET_OPT_IP_MULTICAST_LOOP 15 #define SOCKET_OPT_IP_MULTICAST_TTL 16 @@ -1048,6 +1049,10 @@ static ERL_NIF_TERM ngetopt_lvl_sock_type(ErlNifEnv* env, static ERL_NIF_TERM ngetopt_lvl_ip(ErlNifEnv* env, SocketDescriptor* descP, int eOpt); +#if defined(IP_MTU) +static ERL_NIF_TERM ngetopt_lvl_ip_mtu(ErlNifEnv* env, + SocketDescriptor* descP); +#endif #if defined(IP_MULTICAST_IF) static ERL_NIF_TERM ngetopt_lvl_ip_multicast_if(ErlNifEnv* env, SocketDescriptor* descP); @@ -5453,6 +5458,12 @@ ERL_NIF_TERM ngetopt_lvl_ip(ErlNifEnv* env, ERL_NIF_TERM result; switch (eOpt) { +#if defined(IP_MTU) + case SOCKET_OPT_IP_MTU: + result = ngetopt_lvl_ip_mtu(env, descP); + break; +#endif + #if defined(IP_MULTICAST_IF) case SOCKET_OPT_IP_MULTICAST_IF: result = ngetopt_lvl_ip_multicast_if(env, descP); @@ -5504,6 +5515,24 @@ ERL_NIF_TERM ngetopt_lvl_ip(ErlNifEnv* env, } +/* ngetopt_lvl_ip_mtu - Level IP MTU option + */ +#if defined(IP_MTU) +static +ERL_NIF_TERM ngetopt_lvl_ip_mtu(ErlNifEnv* env, + SocketDescriptor* descP) +{ +#if defined(SOL_IP) + int level = SOL_IP; +#else + int level = IPPROTO_IP; +#endif + + return ngetopt_int_opt(env, descP, level, IP_MTU); +} +#endif + + /* ngetopt_lvl_ip_multicast_if - Level IP MULTICAST_IF option */ #if defined(IP_MULTICAST_IF) |