diff options
Diffstat (limited to 'lib/kernel/src/inet.erl')
| -rw-r--r-- | lib/kernel/src/inet.erl | 613 |
1 files changed, 489 insertions, 124 deletions
diff --git a/lib/kernel/src/inet.erl b/lib/kernel/src/inet.erl index 1a03424f88..f5c13ecdd7 100644 --- a/lib/kernel/src/inet.erl +++ b/lib/kernel/src/inet.erl @@ -1,18 +1,19 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1997-2012. All Rights Reserved. +%% Copyright Ericsson AB 1997-2016. All Rights Reserved. %% -%% The contents of this file are subject to the Erlang Public License, -%% Version 1.1, (the "License"); you may not use this file except in -%% compliance with the License. You should have received a copy of the -%% Erlang Public License along with this software. If not, it can be -%% retrieved online at http://www.erlang.org/. +%% Licensed under the Apache License, Version 2.0 (the "License"); +%% you may not use this file except in compliance with the License. +%% You may obtain a copy of the License at %% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and limitations -%% under the License. +%% http://www.apache.org/licenses/LICENSE-2.0 +%% +%% Unless required by applicable law or agreed to in writing, software +%% distributed under the License is distributed on an "AS IS" BASIS, +%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +%% See the License for the specific language governing permissions and +%% limitations under the License. %% %% %CopyrightEnd% %% @@ -24,15 +25,19 @@ %% socket -export([peername/1, sockname/1, port/1, send/2, + peernames/1, peernames/2, socknames/1, socknames/2, setopts/2, getopts/2, getifaddrs/0, getifaddrs/1, getif/1, getif/0, getiflist/0, getiflist/1, ifget/3, ifget/2, ifset/3, ifset/2, getstat/1, getstat/2, ip/1, stats/0, options/0, - pushf/3, popf/1, close/1, gethostname/0, gethostname/1]). + pushf/3, popf/1, close/1, gethostname/0, gethostname/1, + parse_ipv4_address/1, parse_ipv6_address/1, parse_ipv4strict_address/1, + parse_ipv6strict_address/1, parse_address/1, parse_strict_address/1, ntoa/1]). -export([connect_options/2, listen_options/2, udp_options/2, sctp_options/2]). +-export([udp_module/1, tcp_module/1, tcp_module/2, sctp_module/1]). -export([i/0, i/1, i/2]). @@ -68,9 +73,10 @@ -export([start_timer/1, timeout/1, timeout/2, stop_timer/1]). -export_type([address_family/0, hostent/0, hostname/0, ip4_address/0, - ip6_address/0, ip_address/0, posix/0, socket/0, - port_number/0]). - + ip6_address/0, ip_address/0, port_number/0, + local_address/0, socket_address/0, returned_non_ip_address/0, + socket_setopt/0, socket_getopt/0, + posix/0, socket/0, stat_option/0]). %% imports -import(lists, [append/1, duplicate/2, filter/2, foldl/3]). @@ -93,6 +99,11 @@ 0..65535,0..65535,0..65535,0..65535}. -type ip_address() :: ip4_address() | ip6_address(). -type port_number() :: 0..65535. +-type local_address() :: {local, File :: binary() | string()}. +-type returned_non_ip_address() :: + {local, binary()} | + {unspec, <<>>} | + {undefined, any()}. -type posix() :: exbadport | exbadseq | file:posix(). -type socket() :: port(). @@ -118,9 +129,22 @@ 'addr' | 'broadaddr' | 'dstaddr' | 'mtu' | 'netmask' | 'flags' |'hwaddr'. --type address_family() :: 'inet' | 'inet6'. +-type if_getopt_result() :: + {'addr', ip_address()} | + {'broadaddr', ip_address()} | + {'dstaddr', ip_address()} | + {'mtu', non_neg_integer()} | + {'netmask', ip_address()} | + {'flags', ['up' | 'down' | 'broadcast' | 'no_broadcast' | + 'pointtopoint' | 'no_pointtopoint' | + 'running' | 'multicast' | 'loopback']} | + {'hwaddr', ether_address()}. + +-type address_family() :: 'inet' | 'inet6' | 'local'. -type socket_protocol() :: 'tcp' | 'udp' | 'sctp'. -type socket_type() :: 'stream' | 'dgram' | 'seqpacket'. +-type socket_address() :: + ip_address() | 'any' | 'loopback' | local_address(). -type stat_option() :: 'recv_cnt' | 'recv_max' | 'recv_avg' | 'recv_oct' | 'recv_dvi' | 'send_cnt' | 'send_max' | 'send_avg' | 'send_oct' | 'send_pend'. @@ -144,32 +168,64 @@ close(Socket) -> ok end. --spec peername(Socket) -> {ok, {Address, Port}} | {error, posix()} when - Socket :: socket(), - Address :: ip_address(), - Port :: non_neg_integer(). + +-spec peername(Socket :: socket()) -> + {ok, + {ip_address(), port_number()} | + returned_non_ip_address()} | + {error, posix()}. peername(Socket) -> prim_inet:peername(Socket). --spec setpeername(Socket :: socket(), Address :: {ip_address(), port_number()}) -> - 'ok' | {'error', any()}. +-spec setpeername( + Socket :: socket(), + Address :: + {ip_address() | 'any' | 'loopback', + port_number()} | + socket_address()) -> + 'ok' | {'error', any()}. setpeername(Socket, {IP,Port}) -> prim_inet:setpeername(Socket, {IP,Port}); setpeername(Socket, undefined) -> prim_inet:setpeername(Socket, undefined). +-spec peernames(Socket :: socket()) -> + {ok, + [{ip_address(), port_number()} | + returned_non_ip_address()]} | + {error, posix()}. + +peernames(Socket) -> + prim_inet:peernames(Socket). --spec sockname(Socket) -> {ok, {Address, Port}} | {error, posix()} when +-spec peernames(Socket, Assoc) -> + {ok, [{Address, Port}]} | {error, posix()} when Socket :: socket(), + Assoc :: #sctp_assoc_change{} | gen_sctp:assoc_id(), Address :: ip_address(), Port :: non_neg_integer(). +peernames(Socket, Assoc) -> + prim_inet:peernames(Socket, Assoc). + + +-spec sockname(Socket :: socket()) -> + {ok, + {ip_address(), port_number()} | + returned_non_ip_address()} | + {error, posix()}. + sockname(Socket) -> prim_inet:sockname(Socket). --spec setsockname(Socket :: socket(), Address :: {ip_address(), port_number()}) -> +-spec setsockname( + Socket :: socket(), + Address :: + {ip_address() | 'any' | 'loopback', + port_number()} | + socket_address()) -> 'ok' | {'error', any()}. setsockname(Socket, {IP,Port}) -> @@ -177,6 +233,26 @@ setsockname(Socket, {IP,Port}) -> setsockname(Socket, undefined) -> prim_inet:setsockname(Socket, undefined). +-spec socknames(Socket :: socket()) -> + {ok, + [{ip_address(), port_number()} | + returned_non_ip_address()]} | + {error, posix()}. + +socknames(Socket) -> + prim_inet:socknames(Socket). + +-spec socknames(Socket, Assoc) -> + {ok, [{Address, Port}]} | {error, posix()} when + Socket :: socket(), + Assoc :: #sctp_assoc_change{} | gen_sctp:assoc_id(), + Address :: ip_address(), + Port :: non_neg_integer(). + +socknames(Socket, Assoc) -> + prim_inet:socknames(Socket, Assoc). + + -spec port(Socket) -> {'ok', Port} | {'error', any()} when Socket :: socket(), Port :: port_number(). @@ -198,7 +274,14 @@ send(Socket, Packet) -> Options :: [socket_setopt()]. setopts(Socket, Opts) -> - prim_inet:setopts(Socket, Opts). + SocketOpts = + [case Opt of + {netns,NS} -> + {netns,filename2binary(NS)}; + _ -> + Opt + end || Opt <- Opts], + prim_inet:setopts(Socket, SocketOpts). -spec getopts(Socket, Options) -> {'ok', OptionValues} | {'error', posix()} when @@ -207,7 +290,18 @@ setopts(Socket, Opts) -> OptionValues :: [socket_setopt()]. getopts(Socket, Opts) -> - prim_inet:getopts(Socket, Opts). + case prim_inet:getopts(Socket, Opts) of + {ok,OptionValues} -> + {ok, + [case OptionValue of + {netns,Bin} -> + {netns,binary2filename(Bin)}; + _ -> + OptionValue + end || OptionValue <- OptionValues]}; + Other -> + Other + end. -spec getifaddrs(Socket :: socket()) -> {'ok', [string()]} | {'error', posix()}. @@ -218,7 +312,7 @@ getifaddrs(Socket) -> -spec getifaddrs() -> {ok, Iflist} | {error, posix()} when Iflist :: [{Ifname,[Ifopt]}], Ifname :: string(), - Ifopt :: {flag,[Flag]} | {addr,Addr} | {netmask,Netmask} + Ifopt :: {flags,[Flag]} | {addr,Addr} | {netmask,Netmask} | {broadaddr,Broadaddr} | {dstaddr,Dstaddr} | {hwaddr,Hwaddr}, Flag :: up | broadcast | loopback | pointtopoint @@ -246,13 +340,13 @@ getiflist() -> -spec ifget(Socket :: socket(), Name :: string() | atom(), Opts :: [if_getopt()]) -> - {'ok', [if_setopt()]} | {'error', posix()}. + {'ok', [if_getopt_result()]} | {'error', posix()}. ifget(Socket, Name, Opts) -> prim_inet:ifget(Socket, Name, Opts). -spec ifget(Name :: string() | atom(), Opts :: [if_getopt()]) -> - {'ok', [if_setopt()]} | {'error', posix()}. + {'ok', [if_getopt_result()]} | {'error', posix()}. ifget(Name, Opts) -> withsocket(fun(S) -> prim_inet:ifget(S, Name, Opts) end). @@ -368,7 +462,12 @@ getstat(Socket,What) -> Hostent :: hostent(). gethostbyname(Name) -> - gethostbyname_tm(Name, inet, false). + case inet_db:res_option(inet6) of + true -> + gethostbyname_tm(Name, inet6, false); + false -> + gethostbyname_tm(Name, inet, false) + end. -spec gethostbyname(Hostname, Family) -> {ok, Hostent} | {error, posix()} when @@ -387,7 +486,7 @@ gethostbyname(Name,Family) -> gethostbyname(Name,Family,Timeout) -> Timer = start_timer(Timeout), Res = gethostbyname_tm(Name,Family,Timer), - stop_timer(Timer), + _ = stop_timer(Timer), Res. gethostbyname_tm(Name,Family,Timer) -> @@ -418,7 +517,7 @@ gethostbyaddr(Address) -> gethostbyaddr(Address,Timeout) -> Timer = start_timer(Timeout), Res = gethostbyaddr_tm(Address, Timer), - stop_timer(Timer), + _ = stop_timer(Timer), Res. gethostbyaddr_tm(Address,Timer) -> @@ -473,7 +572,7 @@ getaddr(Address, Family) -> getaddr(Address, Family, Timeout) -> Timer = start_timer(Timeout), Res = getaddr_tm(Address, Family, Timer), - stop_timer(Timer), + _ = stop_timer(Timer), Res. getaddr_tm(Address, Family, Timer) -> @@ -499,7 +598,7 @@ getaddrs(Address, Family) -> getaddrs(Address, Family, Timeout) -> Timer = start_timer(Timeout), Res = getaddrs_tm(Address, Family, Timer), - stop_timer(Timer), + _ = stop_timer(Timer), Res. -spec getservbyport(Port :: port_number(), Protocol :: atom() | string()) -> @@ -527,15 +626,64 @@ getservbyname(Name, Protocol) when is_atom(Name) -> Error -> Error end. +-spec ntoa(IpAddress) -> Address | {error, einval} when + Address :: string(), + IpAddress :: ip_address(). +ntoa(Addr) -> + inet_parse:ntoa(Addr). + +-spec parse_ipv4_address(Address) -> + {ok, IPv4Address} | {error, einval} when + Address :: string(), + IPv4Address :: ip_address(). +parse_ipv4_address(Addr) -> + inet_parse:ipv4_address(Addr). + +-spec parse_ipv6_address(Address) -> + {ok, IPv6Address} | {error, einval} when + Address :: string(), + IPv6Address :: ip_address(). +parse_ipv6_address(Addr) -> + inet_parse:ipv6_address(Addr). + +-spec parse_ipv4strict_address(Address) -> + {ok, IPv4Address} | {error, einval} when + Address :: string(), + IPv4Address :: ip_address(). +parse_ipv4strict_address(Addr) -> + inet_parse:ipv4strict_address(Addr). + +-spec parse_ipv6strict_address(Address) -> + {ok, IPv6Address} | {error, einval} when + Address :: string(), + IPv6Address :: ip_address(). +parse_ipv6strict_address(Addr) -> + inet_parse:ipv6strict_address(Addr). + +-spec parse_address(Address) -> + {ok, IPAddress} | {error, einval} when + Address :: string(), + IPAddress :: ip_address(). +parse_address(Addr) -> + inet_parse:address(Addr). + +-spec parse_strict_address(Address) -> + {ok, IPAddress} | {error, einval} when + Address :: string(), + IPAddress :: ip_address(). +parse_strict_address(Addr) -> + inet_parse:strict_address(Addr). + %% Return a list of available options options() -> [ - tos, priority, reuseaddr, keepalive, dontroute, linger, - broadcast, sndbuf, recbuf, nodelay, + tos, tclass, priority, reuseaddr, keepalive, dontroute, linger, + broadcast, sndbuf, recbuf, nodelay, ipv6_v6only, buffer, header, active, packet, deliver, mode, multicast_if, multicast_ttl, multicast_loop, exit_on_close, high_watermark, low_watermark, - bit8, send_timeout, send_timeout_close + high_msgq_watermark, low_msgq_watermark, + send_timeout, send_timeout_close, show_econnreset ]. %% Return a list of statistics options @@ -550,12 +698,13 @@ stats() -> %% Available options for tcp:connect %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% connect_options() -> - [tos, priority, reuseaddr, keepalive, linger, sndbuf, recbuf, nodelay, - header, active, packet, packet_size, buffer, mode, deliver, - exit_on_close, high_watermark, low_watermark, bit8, send_timeout, - send_timeout_close, delay_send,raw]. + [tos, tclass, priority, reuseaddr, keepalive, linger, sndbuf, recbuf, nodelay, + header, active, packet, packet_size, buffer, mode, deliver, line_delimiter, + exit_on_close, high_watermark, low_watermark, high_msgq_watermark, + low_msgq_watermark, send_timeout, send_timeout_close, delay_send, raw, + show_econnreset]. -connect_options(Opts, Family) -> +connect_options(Opts, Mod) -> BaseOpts = case application:get_env(kernel, inet_default_connect_options) of {ok,List} when is_list(List) -> @@ -571,14 +720,15 @@ connect_options(Opts, Family) -> case con_opt(Opts, BaseOpts, connect_options()) of {ok, R} -> {ok, R#connect_opts { - ifaddr = translate_ip(R#connect_opts.ifaddr, Family) + opts = lists:reverse(R#connect_opts.opts), + ifaddr = Mod:translate_ip(R#connect_opts.ifaddr) }}; Error -> Error end. -con_opt([{raw,A,B,C}|Opts],R,As) -> +con_opt([{raw,A,B,C}|Opts],#connect_opts{} = R,As) -> con_opt([{raw,{A,B,C}}|Opts],R,As); -con_opt([Opt | Opts], R, As) -> +con_opt([Opt | Opts], #connect_opts{} = R, As) -> case Opt of {ip,IP} -> con_opt(Opts, R#connect_opts { ifaddr = IP }, As); {ifaddr,IP} -> con_opt(Opts, R#connect_opts { ifaddr = IP }, As); @@ -586,16 +736,26 @@ con_opt([Opt | Opts], R, As) -> {fd,Fd} -> con_opt(Opts, R#connect_opts { fd = Fd }, As); binary -> con_add(mode, binary, R, Opts, As); list -> con_add(mode, list, R, Opts, As); - {tcp_module,_} -> con_opt(Opts, R, As); - inet -> con_opt(Opts, R, As); - inet6 -> con_opt(Opts, R, As); + {netns,NS} -> + BinNS = filename2binary(NS), + case prim_inet:is_sockopt_val(netns, BinNS) of + true -> + con_opt(Opts, R#connect_opts { fd = [{netns,BinNS}] }, As); + false -> + {error, badarg} + end; + {active,N} when is_integer(N), N < 32768, N >= -32768 -> + NOpts = lists:keydelete(active, 1, R#connect_opts.opts), + con_opt(Opts, R#connect_opts { opts = [{active,N}|NOpts] }, As); + {line_delimiter,C} when is_integer(C), C >= 0, C =< 255 -> + con_add(line_delimiter, C, R, Opts, As); {Name,Val} when is_atom(Name) -> con_add(Name, Val, R, Opts, As); _ -> {error, badarg} end; -con_opt([], R, _) -> +con_opt([], #connect_opts{} = R, _) -> {ok, R}. -con_add(Name, Val, R, Opts, AllOpts) -> +con_add(Name, Val, #connect_opts{} = R, Opts, AllOpts) -> case add_opt(Name, Val, R#connect_opts.opts, AllOpts) of {ok, SOpts} -> con_opt(Opts, R#connect_opts { opts = SOpts }, AllOpts); @@ -606,12 +766,13 @@ con_add(Name, Val, R, Opts, AllOpts) -> %% Available options for tcp:listen %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% listen_options() -> - [tos, priority, reuseaddr, keepalive, linger, sndbuf, recbuf, nodelay, - header, active, packet, buffer, mode, deliver, backlog, - exit_on_close, high_watermark, low_watermark, bit8, send_timeout, - send_timeout_close, delay_send, packet_size,raw]. + [tos, tclass, priority, reuseaddr, keepalive, linger, sndbuf, recbuf, nodelay, + header, active, packet, buffer, mode, deliver, backlog, ipv6_v6only, + exit_on_close, high_watermark, low_watermark, high_msgq_watermark, + low_msgq_watermark, send_timeout, send_timeout_close, delay_send, + packet_size, raw, show_econnreset]. -listen_options(Opts, Family) -> +listen_options(Opts, Mod) -> BaseOpts = case application:get_env(kernel, inet_default_listen_options) of {ok,List} when is_list(List) -> @@ -627,14 +788,15 @@ listen_options(Opts, Family) -> case list_opt(Opts, BaseOpts, listen_options()) of {ok, R} -> {ok, R#listen_opts { - ifaddr = translate_ip(R#listen_opts.ifaddr, Family) + opts = lists:reverse(R#listen_opts.opts), + ifaddr = Mod:translate_ip(R#listen_opts.ifaddr) }}; Error -> Error end. -list_opt([{raw,A,B,C}|Opts], R, As) -> +list_opt([{raw,A,B,C}|Opts], #listen_opts{} = R, As) -> list_opt([{raw,{A,B,C}}|Opts], R, As); -list_opt([Opt | Opts], R, As) -> +list_opt([Opt | Opts], #listen_opts{} = R, As) -> case Opt of {ip,IP} -> list_opt(Opts, R#listen_opts { ifaddr = IP }, As); {ifaddr,IP} -> list_opt(Opts, R#listen_opts { ifaddr = IP }, As); @@ -643,44 +805,67 @@ list_opt([Opt | Opts], R, As) -> {backlog,BL} -> list_opt(Opts, R#listen_opts { backlog = BL }, As); binary -> list_add(mode, binary, R, Opts, As); list -> list_add(mode, list, R, Opts, As); - {tcp_module,_} -> list_opt(Opts, R, As); - inet -> list_opt(Opts, R, As); - inet6 -> list_opt(Opts, R, As); + {netns,NS} -> + BinNS = filename2binary(NS), + case prim_inet:is_sockopt_val(netns, BinNS) of + true -> + list_opt(Opts, R#listen_opts { fd = [{netns,BinNS}] }, As); + false -> + {error, badarg} + end; + {active,N} when is_integer(N), N < 32768, N >= -32768 -> + NOpts = lists:keydelete(active, 1, R#listen_opts.opts), + list_opt(Opts, R#listen_opts { opts = [{active,N}|NOpts] }, As); {Name,Val} when is_atom(Name) -> list_add(Name, Val, R, Opts, As); _ -> {error, badarg} end; -list_opt([], R, _SockOpts) -> +list_opt([], #listen_opts{} = R, _SockOpts) -> {ok, R}. -list_add(Name, Val, R, Opts, As) -> +list_add(Name, Val, #listen_opts{} = R, Opts, As) -> case add_opt(Name, Val, R#listen_opts.opts, As) of {ok, SOpts} -> list_opt(Opts, R#listen_opts { opts = SOpts }, As); Error -> Error end. +tcp_module(Opts) -> + tcp_module_1(Opts, undefined). + +tcp_module(Opts, Addr) -> + Address = {undefined,Addr}, + %% Address has to be a 2-tuple but the first element is ignored + tcp_module_1(Opts, Address). + +tcp_module_1(Opts, Address) -> + mod( + Opts, tcp_module, Address, + #{inet => inet_tcp, inet6 => inet6_tcp, local => local_tcp}). + %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %% Available options for udp:open %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% udp_options() -> - [tos, priority, reuseaddr, sndbuf, recbuf, header, active, buffer, mode, - deliver, + [tos, tclass, priority, reuseaddr, sndbuf, recbuf, header, active, buffer, mode, + deliver, ipv6_v6only, broadcast, dontroute, multicast_if, multicast_ttl, multicast_loop, - add_membership, drop_membership, read_packets,raw]. + add_membership, drop_membership, read_packets,raw, + high_msgq_watermark, low_msgq_watermark]. -udp_options(Opts, Family) -> +udp_options(Opts, Mod) -> case udp_opt(Opts, #udp_opts { }, udp_options()) of {ok, R} -> {ok, R#udp_opts { - ifaddr = translate_ip(R#udp_opts.ifaddr, Family) + opts = lists:reverse(R#udp_opts.opts), + ifaddr = Mod:translate_ip(R#udp_opts.ifaddr) }}; Error -> Error end. -udp_opt([{raw,A,B,C}|Opts], R, As) -> +udp_opt([{raw,A,B,C}|Opts], #udp_opts{} = R, As) -> udp_opt([{raw,{A,B,C}}|Opts], R, As); -udp_opt([Opt | Opts], R, As) -> +udp_opt([Opt | Opts], #udp_opts{} = R, As) -> case Opt of {ip,IP} -> udp_opt(Opts, R#udp_opts { ifaddr = IP }, As); {ifaddr,IP} -> udp_opt(Opts, R#udp_opts { ifaddr = IP }, As); @@ -688,28 +873,41 @@ udp_opt([Opt | Opts], R, As) -> {fd,Fd} -> udp_opt(Opts, R#udp_opts { fd = Fd }, As); binary -> udp_add(mode, binary, R, Opts, As); list -> udp_add(mode, list, R, Opts, As); - {udp_module,_} -> udp_opt(Opts, R, As); - inet -> udp_opt(Opts, R, As); - inet6 -> udp_opt(Opts, R, As); + {netns,NS} -> + BinNS = filename2binary(NS), + case prim_inet:is_sockopt_val(netns, BinNS) of + true -> + udp_opt(Opts, R#udp_opts { fd = [{netns,BinNS}] }, As); + false -> + {error, badarg} + end; + {active,N} when is_integer(N), N < 32768, N >= -32768 -> + NOpts = lists:keydelete(active, 1, R#udp_opts.opts), + udp_opt(Opts, R#udp_opts { opts = [{active,N}|NOpts] }, As); {Name,Val} when is_atom(Name) -> udp_add(Name, Val, R, Opts, As); _ -> {error, badarg} end; -udp_opt([], R, _SockOpts) -> +udp_opt([], #udp_opts{} = R, _SockOpts) -> {ok, R}. -udp_add(Name, Val, R, Opts, As) -> +udp_add(Name, Val, #udp_opts{} = R, Opts, As) -> case add_opt(Name, Val, R#udp_opts.opts, As) of {ok, SOpts} -> udp_opt(Opts, R#udp_opts { opts = SOpts }, As); Error -> Error end. +udp_module(Opts) -> + mod( + Opts, udp_module, undefined, + #{inet => inet_udp, inet6 => inet6_udp, local => local_udp}). + %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %% Available options for sctp:open %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % Currently supported options include: % (*) {mode, list|binary} or just list|binary -% (*) {active, true|false|once} +% (*) {active, true|false|once|N} % (*) {sctp_module, inet_sctp|inet6_sctp} or just inet|inet6 % (*) options set via setsockopt. % The full list is below in sctp_options/0 . @@ -719,8 +917,8 @@ udp_add(Name, Val, R, Opts, As) -> % (*) passing of open FDs ("fdopen") is not supported. sctp_options() -> [ % The following are generic inet options supported for SCTP sockets: - mode, active, buffer, tos, priority, dontroute, reuseaddr, linger, sndbuf, - recbuf, + mode, active, buffer, tos, tclass, priority, dontroute, reuseaddr, linger, sndbuf, + recbuf, ipv6_v6only, high_msgq_watermark, low_msgq_watermark, % Other options are SCTP-specific (though they may be similar to their % TCP and UDP counter-parts): @@ -735,13 +933,16 @@ sctp_options() -> sctp_options(Opts, Mod) -> case sctp_opt(Opts, Mod, #sctp_opts{}, sctp_options()) of {ok,#sctp_opts{ifaddr=undefined}=SO} -> - {ok,SO#sctp_opts{ifaddr=Mod:translate_ip(?SCTP_DEF_IFADDR)}}; - {ok,_}=OK -> - OK; + {ok, + SO#sctp_opts{ + opts=lists:reverse(SO#sctp_opts.opts), + ifaddr=Mod:translate_ip(?SCTP_DEF_IFADDR)}}; + {ok,SO} -> + {ok,SO#sctp_opts{opts=lists:reverse(SO#sctp_opts.opts)}}; Error -> Error end. -sctp_opt([Opt|Opts], Mod, R, As) -> +sctp_opt([Opt|Opts], Mod, #sctp_opts{} = R, As) -> case Opt of {ip,IP} -> sctp_opt_ifaddr(Opts, Mod, R, As, IP); @@ -757,9 +958,20 @@ sctp_opt([Opt|Opts], Mod, R, As) -> sctp_opt(Opts, Mod, R#sctp_opts{type=Type}, As); binary -> sctp_opt (Opts, Mod, R, As, mode, binary); list -> sctp_opt (Opts, Mod, R, As, mode, list); - {sctp_module,_} -> sctp_opt (Opts, Mod, R, As); % Done with - inet -> sctp_opt (Opts, Mod, R, As); % Done with - inet6 -> sctp_opt (Opts, Mod, R, As); % Done with + {netns,NS} -> + BinNS = filename2binary(NS), + case prim_inet:is_sockopt_val(netns, BinNS) of + true -> + sctp_opt( + Opts, Mod, + R#sctp_opts { fd = [{netns,BinNS}] }, + As); + false -> + {error, badarg} + end; + {active,N} when is_integer(N), N < 32768, N >= -32768 -> + NOpts = lists:keydelete(active, 1, R#sctp_opts.opts), + sctp_opt(Opts, Mod, R#sctp_opts { opts = [{active,N}|NOpts] }, As); {Name,Val} -> sctp_opt (Opts, Mod, R, As, Name, Val); _ -> {error,badarg} end; @@ -770,7 +982,7 @@ sctp_opt([], _Mod, #sctp_opts{ifaddr=IfAddr}=R, _SockOpts) -> {ok, R} end. -sctp_opt(Opts, Mod, R, As, Name, Val) -> +sctp_opt(Opts, Mod, #sctp_opts{} = R, As, Name, Val) -> case add_opt(Name, Val, R#sctp_opts.opts, As) of {ok,SocketOpts} -> sctp_opt(Opts, Mod, R#sctp_opts{opts=SocketOpts}, As); @@ -787,6 +999,11 @@ sctp_opt_ifaddr(Opts, Mod, #sctp_opts{ifaddr=IfAddr}=R, As, Addr) -> _ -> [IP,IfAddr] end}, As). +sctp_module(Opts) -> + mod( + Opts, sctp_module, undefined, + #{inet => inet_sctp, inet6 => inet6_sctp}). + %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %% Util to check and insert option in option list %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% @@ -795,6 +1012,8 @@ add_opt(Name, Val, Opts, As) -> case lists:member(Name, As) of true -> case prim_inet:is_sockopt_val(Name, Val) of + true when Name =:= raw -> + {ok, [{Name,Val} | Opts]}; true -> Opts1 = lists:keydelete(Name, 1, Opts), {ok, [{Name,Val} | Opts1]}; @@ -804,12 +1023,92 @@ add_opt(Name, Val, Opts, As) -> end. +%% Passthrough all unknown - catch type errors later +filename2binary(List) when is_list(List) -> + OutEncoding = file:native_name_encoding(), + try unicode:characters_to_binary(List, unicode, OutEncoding) of + Bin when is_binary(Bin) -> + Bin; + _ -> + List + catch + error:badarg -> + List + end; +filename2binary(Bin) -> + Bin. + +binary2filename(Bin) -> + InEncoding = file:native_name_encoding(), + case unicode:characters_to_list(Bin, InEncoding) of + Filename when is_list(Filename) -> + Filename; + _ -> + %% For getopt/setopt of netns this should only happen if + %% a binary with wrong encoding was used when setting the + %% option, hence the user shall eat his/her own medicine. + %% + %% I.e passthrough here too for now. + %% Future usecases will most probably not want this, + %% rather Unicode error or warning + %% depending on emulator flag instead. + Bin + end. + + translate_ip(any, inet) -> {0,0,0,0}; translate_ip(loopback, inet) -> {127,0,0,1}; translate_ip(any, inet6) -> {0,0,0,0,0,0,0,0}; translate_ip(loopback, inet6) -> {0,0,0,0,0,0,0,1}; translate_ip(IP, _) -> IP. +mod(Opts, Tag, Address, Map) -> + mod(Opts, Tag, Address, Map, undefined, []). +%% +mod([{Tag, M}|Opts], Tag, Address, Map, Mod, Acc) -> + mod(Opts, Tag, Address, Map, Mod, Acc, M); +mod([{T, _} = Opt|Opts], Tag, _Address, Map, Mod, Acc) + when T =:= ip; T =:= ifaddr-> + mod(Opts, Tag, Opt, Map, Mod, [Opt|Acc]); +mod([Family|Opts], Tag, Address, Map, Mod, Acc) when is_atom(Family) -> + case Map of + #{Family := M} -> + mod(Opts, Tag, Address, Map, Mod, Acc, M); + #{} -> + mod(Opts, Tag, Address, Map, Mod, [Family|Acc]) + end; +mod([Opt|Opts], Tag, Address, Map, Mod, Acc) -> + mod(Opts, Tag, Address, Map, Mod, [Opt|Acc]); +mod([], Tag, Address, Map, undefined, Acc) -> + {case Address of + {_, {local, _}} -> + case Map of + #{local := Mod} -> + Mod; + #{} -> + inet_db:Tag() + end; + {_, IP} when tuple_size(IP) =:= 8 -> + #{inet := IPv4Mod} = Map, + %% Get the mod, but IPv6 address overrides default IPv4 + case inet_db:Tag() of + IPv4Mod -> + #{inet6 := IPv6Mod} = Map, + IPv6Mod; + Mod -> + Mod + end; + _ -> + inet_db:Tag() + end, lists:reverse(Acc)}; +mod([], _Tag, _Address, _Map, Mod, Acc) -> + {Mod, lists:reverse(Acc)}. +%% +mod(Opts, Tag, Address, Map, undefined, Acc, M) -> + mod(Opts, Tag, Address, Map, M, Acc); +mod(Opts, Tag, Address, Map, Mod, Acc, _M) -> + mod(Opts, Tag, Address, Map, Mod, Acc). + getaddrs_tm({A,B,C,D} = IP, Fam, _) -> %% Only "syntactic" validation and check of family. @@ -869,7 +1168,7 @@ gethostbyname_tm(Name, Type, Timer, [wins|_]=Opts) -> gethostbyname_tm_native(Name, Type, Timer, Opts); gethostbyname_tm(Name, Type, Timer, [native|_]=Opts) -> gethostbyname_tm_native(Name, Type, Timer, Opts); -gethostbyname_tm(Name, Type, Timer, [_|_]=Opts) -> +gethostbyname_tm(Name, Type, Timer, [_|Opts]) -> gethostbyname_tm(Name, Type, Timer, Opts); %% Make sure we always can look up our own hostname. gethostbyname_tm(Name, Type, Timer, []) -> @@ -900,21 +1199,34 @@ gethostbyname_self(Name, Type) when is_atom(Name) -> gethostbyname_self(Name, Type) when is_list(Name), Type =:= inet; is_list(Name), Type =:= inet6 -> - case inet_db:gethostname() of - Name -> - {ok,make_hostent(Name, - [translate_ip(loopback, Type)], - [], Type)}; - Self -> + N = inet_db:tolower(Name), + Self = inet_db:gethostname(), + %% + %% This is the final fallback that pretends /etc/hosts has got + %% a line for the hostname on the loopback address. + %% Lookups into /etc/hosts are case insensitive and return + %% what is in the file. Therefore the letter case may differ between + %% the returned hostent record and the hostname that was asked for. + %% + case inet_db:tolower(Self) of + N -> + {ok, + make_hostent( + Self, [translate_ip(loopback, Type)], [], Type)}; + _ -> case inet_db:res_option(domain) of - "" -> {error,nxdomain}; + "" -> + {error,nxdomain}; Domain -> - case lists:append([Self,".",Domain]) of - Name -> - {ok,make_hostent(Name, - [translate_ip(loopback, Type)], - [], Type)}; - _ -> {error,nxdomain} + FQDN = lists:append([Self,".",Domain]), + case inet_db:tolower(FQDN) of + N -> + {ok, + make_hostent( + FQDN, + [translate_ip(loopback, Type)], [], Type)}; + _ -> + {error,nxdomain} end end end; @@ -1003,8 +1315,18 @@ gethostbyaddr_tm_native(Addr, Timer, Opts) -> Result -> Result end. --spec open(Fd :: integer(), - Addr :: ip_address(), +-spec open(Fd_or_OpenOpts :: integer() | list(), + Addr :: + socket_address() | + {ip_address() | 'any' | 'loopback', % Unofficial + port_number()} | + {inet, % Unofficial + {ip4_address() | 'any' | 'loopback', + port_number()}} | + {inet6, % Unofficial + {ip6_address() | 'any' | 'loopback', + port_number()}} | + undefined, % Internal - no bind() Port :: port_number(), Opts :: [socket_setopt()], Protocol :: socket_protocol(), @@ -1013,17 +1335,22 @@ gethostbyaddr_tm_native(Addr, Timer, Opts) -> Module :: atom()) -> {'ok', socket()} | {'error', posix()}. -open(Fd, Addr, Port, Opts, Protocol, Family, Type, Module) when Fd < 0 -> - case prim_inet:open(Protocol, Family, Type) of +open(FdO, Addr, Port, Opts, Protocol, Family, Type, Module) + when is_integer(FdO), FdO < 0; + is_list(FdO) -> + OpenOpts = + if is_list(FdO) -> FdO; + true -> [] + end, + case prim_inet:open(Protocol, Family, Type, OpenOpts) of {ok,S} -> case prim_inet:setopts(S, Opts) of + ok when Addr =:= undefined -> + inet_db:register_socket(S, Module), + {ok,S}; ok -> - case if is_list(Addr) -> - bindx(S, Addr, Port); - true -> - prim_inet:bind(S, Addr, Port) - end of - {ok, _} -> + case bind(S, Addr, Port) of + {ok, _} -> inet_db:register_socket(S, Module), {ok,S}; Error -> @@ -1037,8 +1364,14 @@ open(Fd, Addr, Port, Opts, Protocol, Family, Type, Module) when Fd < 0 -> Error -> Error end; -open(Fd, _Addr, _Port, Opts, Protocol, Family, Type, Module) -> - fdopen(Fd, Opts, Protocol, Family, Type, Module). +open(Fd, Addr, Port, Opts, Protocol, Family, Type, Module) + when is_integer(Fd) -> + fdopen(Fd, Addr, Port, Opts, Protocol, Family, Type, Module). + +bind(S, Addr, Port) when is_list(Addr) -> + bindx(S, Addr, Port); +bind(S, Addr, Port) -> + prim_inet:bind(S, Addr, Port). bindx(S, [Addr], Port0) -> {IP, Port} = set_bindx_port(Addr, Port0), @@ -1077,14 +1410,39 @@ change_bindx_0_port({_IP, _Port}=Addr, _AssignedPort) -> {'ok', socket()} | {'error', posix()}. fdopen(Fd, Opts, Protocol, Family, Type, Module) -> - case prim_inet:fdopen(Protocol, Family, Type, Fd) of + fdopen(Fd, any, 0, Opts, Protocol, Family, Type, Module). + +fdopen(Fd, Addr, Port, Opts, Protocol, Family, Type, Module) -> + Bound = + %% We do not do any binding if default port+addr options + %% were given, in order to keep backwards compatability + %% with pre Erlang/OTP 17 + case Addr of + {0,0,0,0} when Port =:= 0 -> true; + {0,0,0,0,0,0,0,0} when Port =:= 0 -> true; + any when Port =:= 0 -> true; + _ -> false + end, + case prim_inet:fdopen(Protocol, Family, Type, Fd, Bound) of {ok, S} -> case prim_inet:setopts(S, Opts) of - ok -> + ok + when Addr =:= undefined; + Bound -> inet_db:register_socket(S, Module), {ok, S}; + ok -> + case bind(S, Addr, Port) of + {ok, _} -> + inet_db:register_socket(S, Module), + {ok, S}; + Error -> + prim_inet:close(S), + Error + end; Error -> - prim_inet:close(S), Error + prim_inet:close(S), + Error end; Error -> Error end. @@ -1283,20 +1641,28 @@ tcp_controlling_process(S, NewOwner) when is_port(S), is_pid(NewOwner) -> _ -> case prim_inet:getopt(S, active) of {ok, A0} -> - prim_inet:setopt(S, active, false), - case tcp_sync_input(S, NewOwner, false) of - true -> %% socket already closed, + SetOptRes = + case A0 of + false -> ok; + _ -> prim_inet:setopt(S, active, false) + end, + case {tcp_sync_input(S, NewOwner, false), SetOptRes} of + {true, _} -> %% socket already closed ok; - false -> + {false, ok} -> try erlang:port_connect(S, NewOwner) of true -> unlink(S), %% unlink from port - prim_inet:setopt(S, active, A0), - ok + case A0 of + false -> ok; + _ -> prim_inet:setopt(S, active, A0) + end catch error:Reason -> {error, Reason} - end + end; + {false, Error} -> + Error end; Error -> Error @@ -1333,13 +1699,12 @@ udp_controlling_process(S, NewOwner) when is_port(S), is_pid(NewOwner) -> {error, not_owner}; _ -> {ok, A0} = prim_inet:getopt(S, active), - prim_inet:setopt(S, active, false), + ok = prim_inet:setopt(S, active, false), udp_sync_input(S, NewOwner), try erlang:port_connect(S, NewOwner) of true -> unlink(S), - prim_inet:setopt(S, active, A0), - ok + ok = prim_inet:setopt(S, active, A0) catch error:Reason -> {error, Reason} |