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-rw-r--r--lib/kernel/doc/src/gen_tcp.xml14
-rw-r--r--lib/kernel/test/gen_tcp_misc_SUITE.erl43
-rw-r--r--lib/kernel/test/gen_udp_SUITE.erl3
3 files changed, 48 insertions, 12 deletions
diff --git a/lib/kernel/doc/src/gen_tcp.xml b/lib/kernel/doc/src/gen_tcp.xml
index cf649991d0..24d63693fd 100644
--- a/lib/kernel/doc/src/gen_tcp.xml
+++ b/lib/kernel/doc/src/gen_tcp.xml
@@ -74,13 +74,25 @@ do_recv(Sock, Bs) ->
<desc>
<p>
If the platform implements the IPv4 option
- <c>IP_PKTOPTIONS</c> (probably Linux specific), or the IPv6 option
+ <c>IP_PKTOPTIONS</c>, or the IPv6 option
<c>IPV6_PKTOPTIONS</c> or <c>IPV6_2292PKTOPTIONS</c> for the socket
this value is returned from
<seealso marker="inet#getopts/2"><c>inet:getopts/2</c></seealso>
when called with the option name
<seealso marker="#type-option_name"><c>pktoptions</c></seealso>.
</p>
+ <note>
+ <p>
+ This option appears to be VERY Linux specific,
+ and its existence in future Linux kernel versions
+ is also worrying since the option is part of RFC 2292
+ which is since long (2003) obsoleted by RFC 3542
+ that <em>explicitly</em> removes this possibility to get
+ packet information from a stream socket.
+ For comparision: it has existed in FreeBSD but is now removed,
+ at least since FreeBSD 10.
+ </p>
+ </note>
</desc>
</datatype>
<datatype>
diff --git a/lib/kernel/test/gen_tcp_misc_SUITE.erl b/lib/kernel/test/gen_tcp_misc_SUITE.erl
index d532537eb9..358ca872f7 100644
--- a/lib/kernel/test/gen_tcp_misc_SUITE.erl
+++ b/lib/kernel/test/gen_tcp_misc_SUITE.erl
@@ -1919,7 +1919,17 @@ so_priority(Config) when is_list(Config) ->
%% IP_RECVTOS and IP_RECVTCLASS for IP_PKTOPTIONS
-%% does not seem to be implemented in Linux until kernel 3.0
+%% does not seem to be implemented in Linux until kernel 3.1
+%%
+%% It seems pktoptions does not return valid values
+%% for IPv4 connect sockets. On the accept socket
+%% we get valid values, but on the connect socket we get
+%% the default values for TOS and TTL.
+%%
+%% Therefore the argument CheckConnect that enables
+%% checking the returned values for the connect socket.
+%% It is only used for recvtclass that is an IPv6 option
+%% and there we get valid values from both socket ends.
recvtos(_Config) ->
test_pktoptions(
@@ -1965,25 +1975,38 @@ recvtclass(_Config) ->
%% when machines with newer versions gets installed...
%% If the test still fails for a plausible reason these
%% version numbers simply should be increased.
+%% Or maybe we should change to only test on known good
+%% platforms - change {unix,_} to false?
-%% Using the option returns einval, so it is not implemented.
+%% pktoptions is not supported for IPv4
+recvtos_ok({unix,openbsd}, OSVer) -> not semver_lt(OSVer, {6,4,0});
recvtos_ok({unix,darwin}, OSVer) -> not semver_lt(OSVer, {17,6,0});
+recvtos_ok({unix,freebsd}, OSVer) -> not semver_lt(OSVer, {11,2,0});
+%% Using the option returns einval, so it is not implemented.
+recvtos_ok({unix,sunos}, OSVer) -> not semver_lt(OSVer, {5,12,0});
%% Does not return any value - not implemented for pktoptions
recvtos_ok({unix,linux}, OSVer) -> not semver_lt(OSVer, {3,1,0});
%%
recvtos_ok({unix,_}, _) -> true;
recvtos_ok(_, _) -> false.
+%% pktoptions is not supported for IPv4
+recvttl_ok({unix,openbsd}, OSVer) -> not semver_lt(OSVer, {6,4,0});
+recvttl_ok({unix,darwin}, OSVer) -> not semver_lt(OSVer, {17,6,0});
+recvttl_ok({unix,freebsd}, OSVer) -> not semver_lt(OSVer, {11,2,0});
+%% Using the option returns einval, so it is not implemented.
+recvttl_ok({unix,sunos}, OSVer) -> not semver_lt(OSVer, {5,12,0});
+%%
recvttl_ok({unix,linux}, _) -> true;
recvttl_ok({unix,_}, _) -> true;
recvttl_ok(_, _) -> false.
-%% Using the option returns einval, so it is not implemented.
+%% pktoptions is not supported for IPv6
recvtclass_ok({unix,openbsd}, OSVer) -> not semver_lt(OSVer, {6,4,0});
-recvtclass_ok({unix,freebsd}, OSVer) -> not semver_lt(OSVer, {11,2,0});
-%% Using the option returns einval up to 0.9.0, so it is not implemented.
-%% Does not return any value - not implemented for pktoptions
recvtclass_ok({unix,darwin}, OSVer) -> not semver_lt(OSVer, {17,6,0});
+recvtclass_ok({unix,sunos}, OSVer) -> not semver_lt(OSVer, {5,12,0});
+%% Using the option returns einval, so it is not implemented.
+recvtclass_ok({unix,freebsd}, OSVer) -> not semver_lt(OSVer, {11,2,0});
%% Does not return any value - not implemented for pktoptions
recvtclass_ok({unix,linux}, OSVer) -> not semver_lt(OSVer, {3,1,0});
%%
@@ -2002,18 +2025,18 @@ semver_lt({X1,Y1,Z1}, {X2,Y2,Z2}) ->
end;
semver_lt(_, {_,_,_}) -> false.
-test_pktoptions(Family, Spec, OSFilter, CheckAccept) ->
+test_pktoptions(Family, Spec, OSFilter, CheckConnect) ->
OSType = os:type(),
OSVer = os:version(),
case OSFilter(OSType, OSVer) of
true ->
io:format("Os: ~p, ~p~n", [OSType,OSVer]),
- test_pktoptions(Family, Spec, CheckAccept, OSType, OSVer);
+ test_pktoptions(Family, Spec, CheckConnect, OSType, OSVer);
false ->
{skip,{not_supported_for_os_version,{OSType,OSVer}}}
end.
%%
-test_pktoptions(Family, Spec, CheckAccept, OSType, OSVer) ->
+test_pktoptions(Family, Spec, CheckConnect, OSType, OSVer) ->
Timeout = 5000,
RecvOpts = [RecvOpt || {RecvOpt,_,_} <- Spec],
TrueRecvOpts = [{RecvOpt,true} || {RecvOpt,_,_} <- Spec],
@@ -2105,7 +2128,7 @@ test_pktoptions(Family, Spec, CheckAccept, OSType, OSVer) ->
ok = gen_tcp:close(S4),
ok = gen_tcp:close(S3),
ok = gen_tcp:close(L),
- (Result1 and ((not CheckAccept) or (Result2 and Result3)))
+ (Result1 and ((not CheckConnect) or (Result2 and Result3)))
orelse
exit({failed,
[{OptsVals1,OptsVals4,OptsVals},
diff --git a/lib/kernel/test/gen_udp_SUITE.erl b/lib/kernel/test/gen_udp_SUITE.erl
index 878e48786c..af9985de45 100644
--- a/lib/kernel/test/gen_udp_SUITE.erl
+++ b/lib/kernel/test/gen_udp_SUITE.erl
@@ -616,13 +616,14 @@ recvtclass(_Config) ->
%% when machines with newer versions gets installed...
%% If the test still fails for a plausible reason these
%% version numbers simply should be increased.
+%% Or maybe we should change to only test on known good platforms?
%% Using the option returns einval, so it is not implemented.
recvtos_ok({unix,darwin}, OSVer) -> not semver_lt(OSVer, {17,6,0});
%% Using the option returns einval, so it is not implemented.
recvtos_ok({unix,openbsd}, OSVer) -> not semver_lt(OSVer, {6,4,0});
%% Using the option returns einval, so it is not implemented.
-recvtos_ok({unix,sunos}, OSVer) -> not semver_lt(OSVer, {5,11,0});
+recvtos_ok({unix,sunos}, OSVer) -> not semver_lt(OSVer, {5,12,0});
%%
recvtos_ok({unix,_}, _) -> true;
recvtos_ok(_, _) -> false.
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-06 05:21:13 +0000