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-rw-r--r--lib/kernel/doc/src/inet.xml4
-rw-r--r--lib/kernel/test/gen_tcp_echo_SUITE.erl11
-rw-r--r--lib/kernel/test/gen_tcp_misc_SUITE.erl66
3 files changed, 73 insertions, 8 deletions
diff --git a/lib/kernel/doc/src/inet.xml b/lib/kernel/doc/src/inet.xml
index fad5af85bb..1a05b4ba99 100644
--- a/lib/kernel/doc/src/inet.xml
+++ b/lib/kernel/doc/src/inet.xml
@@ -573,6 +573,10 @@ fe80::204:acff:fe17:bf38
is longer than the max allowed length, the packet is
considered invalid. The same happens if the packet header
is too big for the socket receive buffer.</p>
+ <p>For line oriented protocols (<c>line</c>,<c>http*</c>),
+ option <c>packet_size</c> also guarantees that lines up to the
+ indicated length are accepted and not considered invalid due
+ to internal buffer limitations.</p>
</item>
<tag><c>{read_packets, Integer}</c>(UDP sockets)</tag>
<item>
diff --git a/lib/kernel/test/gen_tcp_echo_SUITE.erl b/lib/kernel/test/gen_tcp_echo_SUITE.erl
index fffaaf4c45..5bbaeb02ad 100644
--- a/lib/kernel/test/gen_tcp_echo_SUITE.erl
+++ b/lib/kernel/test/gen_tcp_echo_SUITE.erl
@@ -167,8 +167,12 @@ echo_test_1(SockOpts, EchoFun, Config0) ->
[{type, {cdr, little}}|Config]),
?line case lists:keymember(packet_size, 1, SockOpts) of
false ->
- ?line echo_packet([{packet, line}|SockOpts],
- EchoFun, Config);
+ % This is cheating, we should test that packet_size
+ % also works for line and http.
+ echo_packet([{packet, line}|SockOpts], EchoFun, Config),
+ echo_packet([{packet, http}|SockOpts], EchoFun, Config),
+ echo_packet([{packet, http_bin}|SockOpts], EchoFun, Config);
+
true -> ok
end,
?line echo_packet([{packet, tpkt}|SockOpts], EchoFun, Config),
@@ -183,9 +187,6 @@ echo_test_1(SockOpts, EchoFun, Config0) ->
[{type, {asn1, short, LongTag}}|Config]),
?line echo_packet([{packet, asn1}|SockOpts], EchoFun,
[{type, {asn1, long, LongTag}}|Config]),
-
- ?line echo_packet([{packet, http}|SockOpts], EchoFun, Config),
- ?line echo_packet([{packet, http_bin}|SockOpts], EchoFun, Config),
ok.
echo_packet(SockOpts, EchoFun, Opts) ->
diff --git a/lib/kernel/test/gen_tcp_misc_SUITE.erl b/lib/kernel/test/gen_tcp_misc_SUITE.erl
index b1ef8826d5..c1c5ff8b81 100644
--- a/lib/kernel/test/gen_tcp_misc_SUITE.erl
+++ b/lib/kernel/test/gen_tcp_misc_SUITE.erl
@@ -40,7 +40,8 @@
accept_timeouts_in_order3/1,accept_timeouts_mixed/1,
killing_acceptor/1,killing_multi_acceptors/1,killing_multi_acceptors2/1,
several_accepts_in_one_go/1,active_once_closed/1, send_timeout/1, send_timeout_active/1,
- otp_7731/1, zombie_sockets/1, otp_7816/1, otp_8102/1]).
+ otp_7731/1, zombie_sockets/1, otp_7816/1, otp_8102/1,
+ otp_9389/1]).
%% Internal exports.
-export([sender/3, not_owner/1, passive_sockets_server/2, priority_server/1,
@@ -72,7 +73,7 @@ all() ->
killing_acceptor, killing_multi_acceptors,
killing_multi_acceptors2, several_accepts_in_one_go,
active_once_closed, send_timeout, send_timeout_active, otp_7731,
- zombie_sockets, otp_7816, otp_8102].
+ zombie_sockets, otp_7816, otp_8102, otp_9389].
groups() ->
[].
@@ -2479,4 +2480,63 @@ otp_8102_do(LSocket, PortNum, {Bin,PType}) ->
io:format("Got error msg, ok.\n",[]),
gen_tcp:close(SSocket),
gen_tcp:close(RSocket).
-
+
+otp_9389(doc) -> ["Verify packet_size handles long HTTP header lines"];
+otp_9389(suite) -> [];
+otp_9389(Config) when is_list(Config) ->
+ ?line {ok, LS} = gen_tcp:listen(0, []),
+ ?line {ok, {_, PortNum}} = inet:sockname(LS),
+ io:format("Listening on ~w with port number ~p\n", [LS, PortNum]),
+ OrigLinkHdr = "/" ++ string:chars($S, 8192),
+ _Server = spawn_link(
+ fun() ->
+ ?line {ok, S} = gen_tcp:accept(LS),
+ ?line ok = inet:setopts(S, [{packet_size, 16384}]),
+ ?line ok = otp_9389_loop(S, OrigLinkHdr),
+ ?line ok = gen_tcp:close(S)
+ end),
+ ?line {ok, S} = gen_tcp:connect("localhost", PortNum,
+ [binary, {active, false}]),
+ Req = "GET / HTTP/1.1\r\n"
+ ++ "Host: localhost\r\n"
+ ++ "Link: " ++ OrigLinkHdr ++ "\r\n\r\n",
+ ?line ok = gen_tcp:send(S, Req),
+ ?line ok = inet:setopts(S, [{packet, http}]),
+ ?line {ok, {http_response, {1,1}, 200, "OK"}} = gen_tcp:recv(S, 0),
+ ?line ok = inet:setopts(S, [{packet, httph}, {packet_size, 16384}]),
+ ?line {ok, {http_header, _, 'Content-Length', _, "0"}} = gen_tcp:recv(S, 0),
+ ?line {ok, {http_header, _, "Link", _, LinkHdr}} = gen_tcp:recv(S, 0),
+ ?line true = (LinkHdr == OrigLinkHdr),
+ ok = gen_tcp:close(S),
+ ok = gen_tcp:close(LS),
+ ok.
+
+otp_9389_loop(S, OrigLinkHdr) ->
+ ?line ok = inet:setopts(S, [{active,once},{packet,http}]),
+ receive
+ {http, S, {http_request, 'GET', _, _}} ->
+ ?line ok = otp_9389_loop(S, OrigLinkHdr, undefined)
+ after
+ 3000 ->
+ ?line error({timeout,request_line})
+ end.
+otp_9389_loop(S, OrigLinkHdr, ok) ->
+ ?line Resp = "HTTP/1.1 200 OK\r\nContent-length: 0\r\n" ++
+ "Link: " ++ OrigLinkHdr ++ "\r\n\r\n",
+ ?line ok = gen_tcp:send(S, Resp);
+otp_9389_loop(S, OrigLinkHdr, State) ->
+ ?line ok = inet:setopts(S, [{active,once}, {packet,httph}]),
+ receive
+ {http, S, http_eoh} ->
+ ?line otp_9389_loop(S, OrigLinkHdr, ok);
+ {http, S, {http_header, _, "Link", _, LinkHdr}} ->
+ ?line LinkHdr = OrigLinkHdr,
+ ?line otp_9389_loop(S, OrigLinkHdr, State);
+ {http, S, {http_header, _, _Hdr, _, _Val}} ->
+ ?line otp_9389_loop(S, OrigLinkHdr, State);
+ {http, S, {http_error, Err}} ->
+ ?line error({error, Err})
+ after
+ 3000 ->
+ ?line error({timeout,header})
+ end.