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-rw-r--r--erts/emulator/drivers/common/inet_drv.c48
-rw-r--r--erts/preloaded/ebin/prim_inet.beambin76268 -> 76544 bytes
-rw-r--r--erts/preloaded/src/prim_inet.erl15
-rw-r--r--lib/kernel/doc/src/inet.xml9
-rw-r--r--lib/kernel/src/inet.erl10
-rw-r--r--lib/kernel/src/inet_int.hrl1
-rw-r--r--lib/kernel/test/gen_tcp_api_SUITE.erl21
7 files changed, 97 insertions, 7 deletions
diff --git a/erts/emulator/drivers/common/inet_drv.c b/erts/emulator/drivers/common/inet_drv.c
index 254d3baeb1..1885338ce5 100644
--- a/erts/emulator/drivers/common/inet_drv.c
+++ b/erts/emulator/drivers/common/inet_drv.c
@@ -777,6 +777,7 @@ static int is_nonzero(const char *s, size_t n)
#define INET_LOPT_NETNS 38 /* Network namespace pathname */
#define INET_LOPT_TCP_SHOW_ECONNRESET 39 /* tell user about incoming RST */
#define INET_LOPT_LINE_DELIM 40 /* Line delimiting char */
+#define INET_OPT_TCLASS 41 /* IPv6 transport class */
/* SCTP options: a separate range, from 100: */
#define SCTP_OPT_RTOINFO 100
#define SCTP_OPT_ASSOCINFO 101
@@ -1330,6 +1331,7 @@ static ErlDrvTermData am_reuseaddr;
static ErlDrvTermData am_dontroute;
static ErlDrvTermData am_priority;
static ErlDrvTermData am_tos;
+static ErlDrvTermData am_tclass;
static ErlDrvTermData am_ipv6_v6only;
static ErlDrvTermData am_netns;
#endif
@@ -3720,6 +3722,7 @@ static void inet_init_sctp(void) {
INIT_ATOM(dontroute);
INIT_ATOM(priority);
INIT_ATOM(tos);
+ INIT_ATOM(tclass);
INIT_ATOM(ipv6_v6only);
INIT_ATOM(netns);
@@ -6228,6 +6231,15 @@ static int inet_set_opts(inet_descriptor* desc, char* ptr, int len)
#else
continue;
#endif
+#if defined(IPV6_TCLASS) && defined(SOL_IPV6)
+ case INET_OPT_TCLASS:
+ proto = SOL_IPV6;
+ type = IPV6_TCLASS;
+ propagate = 1;
+ DEBUGF(("inet_set_opts(%ld): s=%d, IPV6_TCLASS=%d\r\n",
+ (long)desc->port, desc->s, ival));
+ break;
+#endif
case TCP_OPT_NODELAY:
proto = IPPROTO_TCP;
@@ -6661,6 +6673,19 @@ static int sctp_set_opts(inet_descriptor* desc, char* ptr, int len)
continue; /* Option not supported -- ignore it */
# endif
+# if defined(IPV6_TCLASS) && defined(SOL_IPV6)
+ case INET_OPT_TCLASS:
+ {
+ arg.ival= get_int32 (curr); curr += 4;
+ proto = SOL_IPV6;
+ type = IPV6_TCLASS;
+ arg_ptr = (char*) (&arg.ival);
+ arg_sz = sizeof ( arg.ival);
+ break;
+ }
+# endif
+
+
case INET_OPT_IPV6_V6ONLY:
# if HAVE_DECL_IPV6_V6ONLY
{
@@ -7162,6 +7187,15 @@ static ErlDrvSSizeT inet_fill_opts(inet_descriptor* desc,
put_int32(0, ptr);
continue;
#endif
+ case INET_OPT_TCLASS:
+#if defined(IPV6_TCLASS) && defined(SOL_IPV6)
+ proto = SOL_IPV6;
+ type = IPV6_TCLASS;
+ break;
+#else
+ TRUNCATE_TO(0,ptr);
+ continue;
+#endif
case INET_OPT_REUSEADDR:
type = SO_REUSEADDR;
break;
@@ -7556,6 +7590,7 @@ static ErlDrvSSizeT sctp_fill_opts(inet_descriptor* desc,
case INET_OPT_DONTROUTE:
case INET_OPT_PRIORITY :
case INET_OPT_TOS :
+ case INET_OPT_TCLASS :
case INET_OPT_IPV6_V6ONLY:
case SCTP_OPT_AUTOCLOSE:
case SCTP_OPT_MAXSEG :
@@ -7629,6 +7664,19 @@ static ErlDrvSSizeT sctp_fill_opts(inet_descriptor* desc,
continue;
# endif
}
+ case INET_OPT_TCLASS:
+ {
+# if defined(IPV6_TCLASS) && defined(SOL_IPV6)
+ proto = SOL_IPV6;
+ type = IPV6_TCLASS;
+ is_int = 1;
+ tag = am_tclass;
+ break;
+# else
+ /* Not supported -- ignore */
+ continue;
+# endif
+ }
case INET_OPT_IPV6_V6ONLY:
# if HAVE_DECL_IPV6_V6ONLY
{
diff --git a/erts/preloaded/ebin/prim_inet.beam b/erts/preloaded/ebin/prim_inet.beam
index ae4861c336..1a573ce297 100644
--- a/erts/preloaded/ebin/prim_inet.beam
+++ b/erts/preloaded/ebin/prim_inet.beam
Binary files differ
diff --git a/erts/preloaded/src/prim_inet.erl b/erts/preloaded/src/prim_inet.erl
index bcf16402b0..61f727e8a4 100644
--- a/erts/preloaded/src/prim_inet.erl
+++ b/erts/preloaded/src/prim_inet.erl
@@ -347,7 +347,17 @@ accept_opts(L, S) ->
case getopts(L, [active, nodelay, keepalive, delay_send, priority, tos]) of
{ok, Opts} ->
case setopts(S, Opts) of
- ok -> {ok, S};
+ ok ->
+ case getopts(L, [tclass]) of
+ {ok, []} ->
+ {ok, S};
+ {ok, TClassOpts} ->
+ case setopts(S, TClassOpts) of
+ ok ->
+ {ok, S};
+ Error -> close(S), Error
+ end
+ end;
Error -> close(S), Error
end;
Error ->
@@ -1196,6 +1206,7 @@ enc_opt(sndbuf) -> ?INET_OPT_SNDBUF;
enc_opt(recbuf) -> ?INET_OPT_RCVBUF;
enc_opt(priority) -> ?INET_OPT_PRIORITY;
enc_opt(tos) -> ?INET_OPT_TOS;
+enc_opt(tclass) -> ?INET_OPT_TCLASS;
enc_opt(nodelay) -> ?TCP_OPT_NODELAY;
enc_opt(multicast_if) -> ?UDP_OPT_MULTICAST_IF;
enc_opt(multicast_ttl) -> ?UDP_OPT_MULTICAST_TTL;
@@ -1255,6 +1266,7 @@ dec_opt(?INET_OPT_SNDBUF) -> sndbuf;
dec_opt(?INET_OPT_RCVBUF) -> recbuf;
dec_opt(?INET_OPT_PRIORITY) -> priority;
dec_opt(?INET_OPT_TOS) -> tos;
+dec_opt(?INET_OPT_TCLASS) -> tclass;
dec_opt(?TCP_OPT_NODELAY) -> nodelay;
dec_opt(?UDP_OPT_MULTICAST_IF) -> multicast_if;
dec_opt(?UDP_OPT_MULTICAST_TTL) -> multicast_ttl;
@@ -1329,6 +1341,7 @@ type_opt_1(sndbuf) -> int;
type_opt_1(recbuf) -> int;
type_opt_1(priority) -> int;
type_opt_1(tos) -> int;
+type_opt_1(tclass) -> int;
type_opt_1(nodelay) -> bool;
type_opt_1(ipv6_v6only) -> bool;
%% multicast
diff --git a/lib/kernel/doc/src/inet.xml b/lib/kernel/doc/src/inet.xml
index 3f4e3684f4..d907cef7d3 100644
--- a/lib/kernel/doc/src/inet.xml
+++ b/lib/kernel/doc/src/inet.xml
@@ -1092,6 +1092,15 @@ setcap cap_sys_admin,cap_sys_ptrace,cap_dac_read_search+epi beam.smp</code>
The option is ignored on platforms where it is not
implemented. Use with caution.</p>
</item>
+ <tag><c>{tclass, Integer}</c></tag>
+ <item>
+ <p>
+ Sets <c>IPV6_TCLASS IP</c> level options on platforms
+ where this is implemented. The behavior and allowed range
+ varies between different systems.
+ The option is ignored on platforms where it is not
+ implemented. Use with caution.</p>
+ </item>
</taglist>
<p>In addition to these options, <em>raw</em>
option specifications can be used. The raw options are
diff --git a/lib/kernel/src/inet.erl b/lib/kernel/src/inet.erl
index 75dd800c6b..f5c13ecdd7 100644
--- a/lib/kernel/src/inet.erl
+++ b/lib/kernel/src/inet.erl
@@ -677,7 +677,7 @@ parse_strict_address(Addr) ->
%% Return a list of available options
options() ->
[
- tos, priority, reuseaddr, keepalive, dontroute, linger,
+ 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,
@@ -698,7 +698,7 @@ stats() ->
%% Available options for tcp:connect
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
connect_options() ->
- [tos, priority, reuseaddr, keepalive, linger, sndbuf, recbuf, nodelay,
+ [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,
@@ -766,7 +766,7 @@ con_add(Name, Val, #connect_opts{} = R, Opts, AllOpts) ->
%% Available options for tcp:listen
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
listen_options() ->
- [tos, priority, reuseaddr, keepalive, linger, sndbuf, recbuf, nodelay,
+ [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,
@@ -846,7 +846,7 @@ tcp_module_1(Opts, Address) ->
%% Available options for udp:open
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
udp_options() ->
- [tos, priority, reuseaddr, sndbuf, recbuf, header, active, buffer, mode,
+ [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,
@@ -917,7 +917,7 @@ udp_module(Opts) ->
% (*) 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,
+ 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
diff --git a/lib/kernel/src/inet_int.hrl b/lib/kernel/src/inet_int.hrl
index c8a8962e78..4e8f59a3b9 100644
--- a/lib/kernel/src/inet_int.hrl
+++ b/lib/kernel/src/inet_int.hrl
@@ -153,6 +153,7 @@
-define(INET_LOPT_NETNS, 38).
-define(INET_LOPT_TCP_SHOW_ECONNRESET, 39).
-define(INET_LOPT_LINE_DELIM, 40).
+-define(INET_OPT_TCLASS, 41).
% Specific SCTP options: separate range:
-define(SCTP_OPT_RTOINFO, 100).
-define(SCTP_OPT_ASSOCINFO, 101).
diff --git a/lib/kernel/test/gen_tcp_api_SUITE.erl b/lib/kernel/test/gen_tcp_api_SUITE.erl
index 77ec89b4f4..92a74465b7 100644
--- a/lib/kernel/test/gen_tcp_api_SUITE.erl
+++ b/lib/kernel/test/gen_tcp_api_SUITE.erl
@@ -38,7 +38,7 @@
t_local_basic/1, t_local_unbound/1, t_local_fdopen/1,
t_local_fdopen_listen/1, t_local_fdopen_listen_unbound/1,
t_local_fdopen_connect/1, t_local_fdopen_connect_unbound/1,
- t_local_abstract/1]).
+ t_local_abstract/1, t_accept_inet6_tclass/1]).
-export([getsockfd/0,closesockfd/1]).
@@ -50,6 +50,7 @@ all() ->
[{group, t_accept}, {group, t_connect}, {group, t_recv},
t_shutdown_write, t_shutdown_both, t_shutdown_error,
t_shutdown_async, t_fdopen, t_fdconnect, t_implicit_inet6,
+ t_accept_inet6_tclass,
{group, t_local}].
groups() ->
@@ -521,6 +522,24 @@ local_handshake(S, SAddr, C, CAddr) ->
SData = ok(gen_tcp:recv(C, length(SData))),
ok.
+t_accept_inet6_tclass(Config) when is_list(Config) ->
+ TClassOpt = {tclass,8#56 bsl 2}, % Expedited forwarding
+ case gen_tcp:listen(0, [inet6,TClassOpt]) of
+ {ok,L} ->
+ LPort = ok(inet:port(L)),
+ Loopback = {0,0,0,0,0,0,0,1},
+ Sa = ok(gen_tcp:connect(Loopback, LPort, [])),
+ Sb = ok(gen_tcp:accept(L)),
+ [TClassOpt] = ok(inet:getopts(Sb, [tclass])),
+ ok = gen_tcp:close(Sb),
+ ok = gen_tcp:close(Sa),
+ ok = gen_tcp:close(L),
+ ok;
+ {error,_} ->
+ {skip,"IPv6 TCLASS not supported"}
+ end.
+
+
%%% Utilities
%% Calls M:F/length(A), which should return a timeout error, and complete
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-02 04:26:14 +0000