diff options
| author | Micael Karlberg <[email protected]> | 2018-07-20 15:14:06 +0200 |
|---|---|---|
| committer | Micael Karlberg <[email protected]> | 2018-09-18 14:50:18 +0200 |
| commit | 1c26ae984a79224ce64b40dbc7239bf9721bb096 (patch) | |
| tree | bc01665931d21620dc152eeb402ad47f21bd0aac /erts/emulator | |
| parent | 84f62ae80dd08874d0d5fbedc532605394e897c1 (diff) | |
| download | otp-1c26ae984a79224ce64b40dbc7239bf9721bb096.tar.gz otp-1c26ae984a79224ce64b40dbc7239bf9721bb096.tar.bz2 otp-1c26ae984a79224ce64b40dbc7239bf9721bb096.zip | |
[socket-nif] Add support for socket (level ip) option freebind
Added support for ip level socket option FREEBIND.
Note that there is an option available on FreeBSD called
IP_BINDANY, which seems to have similar properties (FREEBIND
is *not* available on FreeBSD). There are some restrictions
for this option though (which is not mentioned in the Linux
man page).
OTP-14831
Diffstat (limited to 'erts/emulator')
| -rw-r--r-- | erts/emulator/nifs/common/socket_nif.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/erts/emulator/nifs/common/socket_nif.c b/erts/emulator/nifs/common/socket_nif.c index 6df2020e5e..f319f171ad 100644 --- a/erts/emulator/nifs/common/socket_nif.c +++ b/erts/emulator/nifs/common/socket_nif.c @@ -517,6 +517,7 @@ typedef union { #define SOCKET_OPT_IP_BLOCK_SOURCE 3 #define SOCKET_OPT_IP_DROP_MEMBERSHIP 5 #define SOCKET_OPT_IP_DROP_SOURCE_MEMBERSHIP 6 +#define SOCKET_OPT_IP_FREEBIND 7 #define SOCKET_OPT_IP_MINTTL 9 #define SOCKET_OPT_IP_MTU 11 #define SOCKET_OPT_IP_MTU_DISCOVER 12 @@ -1086,6 +1087,11 @@ static ERL_NIF_TERM nsetopt_lvl_ip_drop_source_membership(ErlNifEnv* env, SocketDescriptor* descP, ERL_NIF_TERM eVal); #endif +#if defined(IP_FREEBIND) +static ERL_NIF_TERM nsetopt_lvl_ip_freebind(ErlNifEnv* env, + SocketDescriptor* descP, + ERL_NIF_TERM eVal); +#endif #if defined(IP_MINTTL) static ERL_NIF_TERM nsetopt_lvl_ip_minttl(ErlNifEnv* env, SocketDescriptor* descP, @@ -1408,6 +1414,10 @@ 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_FREEBIND) +static ERL_NIF_TERM ngetopt_lvl_ip_freebind(ErlNifEnv* env, + SocketDescriptor* descP); +#endif #if defined(IP_MINTTL) static ERL_NIF_TERM ngetopt_lvl_ip_minttl(ErlNifEnv* env, SocketDescriptor* descP); @@ -4738,6 +4748,12 @@ ERL_NIF_TERM nsetopt_lvl_ip(ErlNifEnv* env, break; #endif +#if defined(IP_FREEBIND) + case SOCKET_OPT_IP_FREEBIND: + result = nsetopt_lvl_ip_freebind(env, descP, eVal); + break; +#endif + #if defined(IP_MINTTL) case SOCKET_OPT_IP_MINTTL: result = nsetopt_lvl_ip_minttl(env, descP, eVal); @@ -4936,6 +4952,26 @@ ERL_NIF_TERM nsetopt_lvl_ip_drop_source_membership(ErlNifEnv* env, +/* nsetopt_lvl_ip_freebind - Level IP FREEBIND option + */ +#if defined(IP_FREEBIND) +static +ERL_NIF_TERM nsetopt_lvl_ip_freebind(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_FREEBIND, eVal); +} +#endif + + + /* nsetopt_lvl_ip_minttl - Level IP MINTTL option */ #if defined(IP_MINTTL) @@ -7374,6 +7410,12 @@ ERL_NIF_TERM ngetopt_lvl_ip(ErlNifEnv* env, ERL_NIF_TERM result; switch (eOpt) { +#if defined(IP_FREEBIND) + case SOCKET_OPT_IP_FREEBIND: + result = ngetopt_lvl_ip_freebind(env, descP); + break; +#endif + #if defined(IP_MINTTL) case SOCKET_OPT_IP_MINTTL: result = ngetopt_lvl_ip_minttl(env, descP); @@ -7485,6 +7527,24 @@ ERL_NIF_TERM ngetopt_lvl_ip_minttl(ErlNifEnv* env, #endif +/* ngetopt_lvl_ip_freebind - Level IP FREEBIND option + */ +#if defined(IP_FREEBIND) +static +ERL_NIF_TERM ngetopt_lvl_ip_freebind(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_FREEBIND); +} +#endif + + /* ngetopt_lvl_ip_mtu - Level IP MTU option */ #if defined(IP_MTU) |