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dtls: Handle getopts and setopts for DTLS
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Fix unsafe bit syntax matching optimization
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'raimo/kernel/inet_ntoa_1-IPv6-lowercase/ERIERL-20/ERL-429/OTP-13006'
* raimo/kernel/inet_ntoa_1-IPv6-lowercase/ERIERL-20/ERL-429/OTP-13006:
Accept IPv6 address %suffixes when parsing
Adjust inet:ntoa/1 to RFC5952, but not deeper
Update inet:ntoa according to modern RFCs
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This only implements decimal suffixes, and furthermore only with
a leading "0". A complete implementation would probably allow one
and probably two digit suffixes without.
But what primarily is missing is translating interface names to
and from interface indexes.
This also only implements the parsing, and uses the FreeBSD trick of
squeezing in the Scope Id in the second 16-bit word of the fe80::/64
or ff02:/64 address prefix. But inet_drv is not prepared to handle
this word, so it might only work on FreeBSD, not being supported even
there... So inet_drv needs to handle this too.
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With sends still from the receiving process by default, since changing
the default behaviour may well have negative effects. A separate sender
probably implies a greater need for some form of load regulation for
one, since a blocking send would no longer imply that incoming messages
are no longer recevied. Dealing with this could result in the same
deadlock that the sending process intends to avoid, but the user should
be in control over how/when incoming traffic is regulated.
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Added in commit 2afd1fe5. Only rename variables in diameter_tcp, no
functional change.
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This:
diameter_tcp.erl:241: Record construction #transport{parent::'false',ssl::boolean() | maybe_improper_list(),frag::<<>>,tref::'false',flush::'false',pending::0,reset::{1 | 4,0 | 2},throttled::boolean(),q::{0,queue:queue(_)},monitor::'undefined' | pid()} violates the declared type of field parent::pid()
The problem isn't #transport.pid at all, it's #monitor.pid, and the only
relation is that the pid that's assigned to the latter is also (later)
assigned to the former. There is no record construction that assigns
false to #transport.parent.
Introduced in commit 33a535e4.
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What's interesting when implementing some form of load regulation is
when an incoming request has been answered or discarded. Acknowledge
exactly this, not the identity of handler processes as previously. A
transport process can request acks of nonforthcoming answers by sending
{diameter, ack} to the parent peer_fsm, a handler processes identifies
itself with a {handler, pid()} message, and the peer_fsm monitors on
this to be able to send a notification to the transport if the handler
dies before sending an answer.
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Commits starting at 472a080c added a throttle_cb option to diameter_tcp
to let a callback apply backpressure when it decides that additional
requests should not be read. It didn't provide a hook for knowing that
an answer was sent however, which is needed when sends no longer take
place in the receiver process, and is more complicated than it should
be. Strip it all away, in preparation for a simpler incarnation.
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Shutdown events have been seen to get a different association id.
For example, first incoming message with association id = 0:
+ {trace_ts,<6421.268.0>,call,
{diameter_sctp,handle_info,
[{sctp,#Port<6421.2588>,
{10,67,16,179},
44159,
{[{sctp_sndrcvinfo,0,0,[],0,0,0,269950872,269950872,0}],
<<1,0,0,156,128,0,1,1,0,0,0,0,6,193,40,137,6,193,40,137,0,0,
1,8,64,0,0,30,67,45,49,51,52,50,49,55,52,52,49,46,101,114,
108,97,110,103,46,111,114,103,0,0,0,0,1,40,64,0,0,18,101,
114,108,97,110,103,46,111,114,103,0,0,0,0,1,1,64,0,0,14,0,
1,127,0,0,1,0,0,0,0,1,10,64,0,0,12,0,0,48,57,0,0,1,13,0,0,
0,20,79,84,80,47,100,105,97,109,101,116,101,114,0,0,1,22,
64,0,0,12,0,0,0,1,0,0,1,2,64,0,0,12,0,0,0,0,0,0,1,3,64,0,0,
12,0,0,0,3>>}},
{transport,<6421.252.0>,accept,#Port<6421.2588>,true,undefined,
{32,32},
0,undefined}]},
{1493,21505,577938}}
Later, a shutdown event with association id 1536:
+ {trace_ts,<6421.268.0>,call,
{diameter_sctp,handle_info,
[{sctp,#Port<6421.2588>,
{10,67,16,179},
44159,
{[],{sctp_shutdown_event,1536}}},
{transport,<6421.252.0>,accept,#Port<6421.2588>,0,undefined,
{32,32},
2,<6421.304.0>}]},
{1493,21505,746929}}
Both this and the grandparent commit are on this:
$ uname -a
SunOS beren 5.10 Generic_118833-33 sun4v sparc SUNW,Netra-T2000
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Faster than lists:duplicate/2.
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In particular, that the association id received in messages on a
one-to-one socket after peeloff may be different from the id received on
the listen socket at comm_up.
This seems odd, since it's then not possible to send until the id is
discovered by reception of an SCTP message containing it, but it's
unclear if this is a bug or a feature, or if it's specific to certain
platforms. Treat it as a feature in this commit, and get the association
id as mentioned, an incoming CER being expected before anything is sent.
Commit da3e5d67 has more history.
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By explicitly skipping instead of omitting testcases from groups.
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Autoskip traffic testcases if transport isn't established instead of
having traffic cases run and fail.
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Testcase is already run elsewhere on the suite.
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In particular, that transmission can be very slow. The problem appears
to be linked to sndbuf/recbuf, but even with buffers that are large
enough to hold all messages being sent, turnaround times can still vary
by hundreds of milliseconds in a reasonable test environment.
Use multiple streams and a sender process to more closely mirror the
usage in diameter_sctp, but neither is the source of the problems.
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The server sent and died, but there's no guarantee that it won't take
the connection down before the client has receive its bytes. Make the
server wait for the client to take down the connection.
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This addresses the testcase failures mentioned in the parent commit,
which has been on account of the behaviour below, in which connect fails
on the loopback address. Work around it by finding/using another address
if possible.
$ erl
Erlang/OTP 20 [DEVELOPMENT] [erts-9.0] [smp:2:2] [ds:2:2:10] [async-threads:10] [hipe] [kernel-poll:false] [sharing-preserving]
Eshell V9.0 (abort with ^G)
1> {ok, LP} = gen_sctp:open().
{ok,#Port<0.439>}
2> gen_sctp:listen(LP, true).
ok
3> inet:socknames(LP).
{ok,[{{10,67,16,178},36506},{{127,0,0,1},36506}]}
4> {ok, S} = gen_sctp:open([{ip, {127,0,0,1}}]).
{ok,#Port<0.443>}
5> gen_sctp:connect_init(S, {127,0,0,1}, 36506, []).
{error,eaddrnotavail}
6> gen_sctp:connect_init(S, {10,67,16,178}, 36506, []).
{error,eaddrnotavail}
7> gen_sctp:close(S).
ok
8> f(S).
ok
9> {ok, S} = gen_sctp:open().
{ok,#Port<0.444>}
10> gen_sctp:connect_init(S, {127,0,0,1}, 36506, []).
ok
Even the following has been seen on at least one host, so that success
of gen_sctp:open/0 is no guarantee.
$ ifconfig -a4
lo0: flags=2001000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4,VIRTUAL> mtu 8232 index 1
inet 127.0.0.1 netmask ff000000
bge0: flags=1004843<UP,BROADCAST,RUNNING,MULTICAST,DHCP,IPv4> mtu 1500 index 2
inet 10.67.16.180 netmask ffffff00 broadcast 10.67.16.255
$ erl
Erlang/OTP 20 [DEVELOPMENT] [erts-9.0] [source] [smp:2:2] [ds:2:2:10] [async-threads:10] [hipe] [kernel-poll:false]
Eshell V9.0 (abort with ^G)
1> {ok, S} = gen_sctp:open(),
1> gen_sctp:connect(S, {127,0,0,1}, 3868, []).
{error,eafnosupport}
2> gen_sctp:connect(S, {10,67,16,180}, 3868, []).
{error,eafnosupport}
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The comment in commit 736ce20a isn't quite true. There's no different
behaviour that diameter doesn't support, but there is a quirk with the
loopback address that has caused many testcases to fail. This will be
addressed in a subsequent commit.
Reverts commit 736ce20a.
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Which dialyzer itself has never complained about.
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Both diameter_tcp and diameter_sctp are susceptible to deadlock since a
peer that blocks send also prevents additional messages from being
received. Send from a process that's paired with the transport process
to avoid this. Use the existing monitor process in the TCP case, add one
in the SCTP case.
This has been the reason for many sporadic testcase failures, mostly in
diameter_traffic_SUITE.
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Should be ssl:close/1.
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Since smooth upgrade won't be supported in this branch.
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Message length errors in incoming messages were misinterpreted with
transport_opt() {length_errors, exit} due to the throw introduced in
commit 2ffb288: the corresponding catch in incoming/2 caught errors
thrown by close/1, leading to failure when the error reason was
interpreted as a diameter_packet record. Do away with the throw, that
also caused woe in the parent commit.
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A transport process can request acknowledgement of the fate of an
incoming message to a specified pid, causing it to receive one of
{diameter, {request|answer, pid()} | discard}
depending on whether or not diameter passes the message off to a handler
process. This was broken in commit a4da06a5 (since recv/3 threw a
message that should be received), but is of little consequence since the
interface isn't yet documented and is only used from diameter_tcp with
configuration that will soon change.
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From commits 5ca5fb71 and 58091992.
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Add enif_whereis_pid() and enif_whereis_port() functions
OTP-14453
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Unicode atoms are handled better by the Erlang code linter.
Module names are checked for character codes greater than 255. This
means that modules invoked after the linter can assume that module
names have only Latin-1 characters.
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The field width calculation did not handle graphem clusters well.
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Pull request 1459 (https://github.com/erlang/otp/pull/1459) points out
one situation where Unicode atoms are not handled well in c.erl. This
commit tries to fix all situations.
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* maint:
Updated OTP version
Update release notes
Update version numbers
erts: Fix so that 81b628 (sigterm=kill) works
Updated OTP version
Prepare release
Unconditionally clear IO buffers on send/shutdown errors
Conflicts:
OTP_VERSION
erts/emulator/sys/unix/sys.c
erts/vsn.mk
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* rickard/purge-hibernated-20:
Update testcase to check that purge handle hibernated process correct
Do not GC hibernated process from other processes
Fix check_process_code() on hibernated process
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* maint-19:
Updated OTP version
Update release notes
Update version numbers
erts: Fix so that 81b628 (sigterm=kill) works
Updated OTP version
Prepare release
Update testcase to check that purge handle hibernated process correct
Do not GC hibernated process from other processes
Fix check_process_code() on hibernated process
Unconditionally clear IO buffers on send/shutdown errors
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=== OTP-19.1.6.1 ===
Changed Applications:
- erts-8.1.1.1
Unchanged Applications:
- asn1-4.0.4
- common_test-1.12.3
- compiler-7.0.2
- cosEvent-2.2.1
- cosEventDomain-1.2.1
- cosFileTransfer-1.2.1
- cosNotification-1.2.2
- cosProperty-1.2.1
- cosTime-1.2.2
- cosTransactions-1.3.2
- crypto-3.7.1
- debugger-4.2.1
- dialyzer-3.0.2
- diameter-1.12.1
- edoc-0.8
- eldap-1.2.2
- erl_docgen-0.6
- erl_interface-3.9.1
- et-1.6
- eunit-2.3.1
- gs-1.6.2
- hipe-3.15.2
- ic-4.4.2
- inets-6.3.3
- jinterface-1.7.1
- kernel-5.1
- megaco-3.18.1
- mnesia-4.14.1
- observer-2.2.2
- odbc-2.11.3
- orber-3.8.2
- os_mon-2.4.1
- otp_mibs-1.1.1
- parsetools-2.1.3
- percept-0.9
- public_key-1.2
- reltool-0.7.2
- runtime_tools-1.10.1
- sasl-3.0.1
- snmp-5.2.4
- ssh-4.3.6
- ssl-8.0.3
- stdlib-3.1
- syntax_tools-2.1
- tools-2.8.6
- typer-0.9.11
- wx-1.7.1
- xmerl-1.3.12
* tag 'OTP-19.1.6.1':
Updated OTP version
Prepare release
Conflicts:
OTP_VERSION
erts/vsn.mk
otp_versions.table
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* siri/reltool/fix-doc-example:
[reltool] Fix outdated example in user's guide
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* bjorn/cuddle-with-tests:
Stabilize call_with_huge_message_queue/1
same_time_yielding/1: Avoid failing if there are many schedulers
Remove obsolete old_scheduler_SUITE
Robustify process_SUITE:spawn_opt_max_heap_size/1
Contain damage cause by spawn_opt_max_heap_size failing
Make bulk_send_bigbig/1 purely informational
distribution_SUITE: Refactor bulk_send_bigbig/1
receive_SUITE: Remove ?line macros
Lengthen too short timetraps
Fix process_SUITE:low_prio/1
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* bjorn/erts/fix-sys-task-cleanup:
Make sure that asynchronous replies are not lost
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