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George Joseph 935e0496c4 udptl: Don't eat sequence numbers until OK is received 
Scenario:
Local fax -> Asterisk w/ firewall -> Provider -> Remote fax

* Local fax starts rtp call to remote fax
* Remote fax starts t38 call back to local fax.
* Local fax sends t38 no-signal to Asterisk before sending an OK.
* udptl processes the frame and increments the expected sequence number.
* chan_sip drops the frame because the call isn't up so nothing goes out
  the external interface to open the port for incoming packets.
* Local fax sends OK and Asterisk sends OK to the remote fax.
* Remote fax sends t38 packets which are dropped by the firewall.
* Local fax re-sends t38 no-signal with the same sequence number.
* udptl drops the frame because it thinks it's a dup.
* Still no outgoing packets to open the firewall.
* t38 negotiation fails.

The patch drops frames t38 received before udptl sequence processing
when the call hasn't been answered yet.  The second no-signal frame
is then seen as new and is relayed out the external interface which
opens the port and allows negotiation to continue.

ASTERISK-26034 #close

Change-Id: I11744b39748bd2ecbbe8ea84cdb4f3c5943c5af9
2016-05-18 14:05:47 -05:00
..
editline
main/editline: Add .gitignore.
2015-04-12 13:58:49 -05:00
stdtime
test_time: Provide a timeout when waiting.
2015-12-28 14:11:05 -06:00
.gitignore
build-system: Allow building with static pjproject
2016-03-01 09:33:17 -07:00
abstract_jb.c
func_jitterbuffer: fix frame leaks.
2014-11-02 07:39:36 +00:00
acl.c
Fix error with mixed address family ACLs.
2014-11-20 16:36:54 +00:00
adsi.c
Allow Asterisk to compile under GCC 4.10
2014-05-09 22:49:26 +00:00
alaw.c
…
aoc.c
json: Audit ast_json_* usage for thread safety.
2015-12-16 17:17:30 -04:00
app.c
app: Queue hangup if channel is hung up during sub or macro execution.
2016-01-13 12:58:36 -04:00
ast_expr2.c
…
ast_expr2.fl
…
ast_expr2.h
…
ast_expr2.y
…
ast_expr2f.c
…
asterisk.c
lock: Add named lock capability
2016-04-08 12:50:58 -06:00
asterisk.dynamics
Fix error loading res_monitor.
2014-04-23 15:02:39 +00:00
asterisk.exports.in
pjproject_bundled: Various fixes discovered during testing of OSes
2016-05-03 06:54:29 -06:00
astfd.c
astfd: Fix buffer overflow in DEBUG_FD_LEAKS.
2015-07-02 05:24:33 -05:00
astmm.c
astmm.c: Add more stats to CLI "memory show" commands.
2016-01-14 19:37:36 -06:00
astobj2_container_private.h
astobj2: Additional refactoring to push impl specific code down into the impls.
2014-06-20 15:27:43 +00:00
astobj2_container.c
Astobj2: Ensure all calls to __adjust_lock pass a valid object.
2015-04-22 20:44:56 -04:00
astobj2_hash.c
Astobj2: Correctly treat hash_fn returning INT_MIN
2015-05-25 02:17:48 -05:00
astobj2_private.h
astobj2: Additional refactoring to push impl specific code down into the impls.
2014-06-20 15:27:43 +00:00
astobj2_rbtree.c
Astobj2: Ensure all calls to __adjust_lock pass a valid object.
2015-04-22 20:44:56 -04:00
astobj2.c
Astobj2: Fix initialization order of refdebug and AO2_DEBUG.
2015-05-01 15:40:45 -04:00
audiohook.c
Fix crash in audiohook translate to slin
2015-12-03 16:04:39 -06:00
autochan.c
app_chanspy: Fix occasional deadlock with ChanSpy and Local channels.
2016-03-11 23:03:08 +01:00
autoservice.c
autoservice: stop thread on graceful shutdown
2014-06-09 03:50:45 +00:00
backtrace.c
Fix memory corruption when trying to get "core show locks".
2013-08-23 18:07:40 +00:00
bridge_after.c
Fix some memory leaks.
2015-01-30 16:47:50 +00:00
bridge_basic.c
Merge "bridge_basic: don't play an attended transfer fail sound after target hangs up" into 13
2016-01-16 08:29:51 -06:00
bridge_channel.c
bridge: Hold off more than one imparting channel at a time.
2016-04-20 15:45:38 -05:00
bridge_roles.c
ARI: bridges/{bridgeID}/addChannel: add roles parameter
2013-08-05 16:59:13 +00:00
bridge.c
Merge changes from topic 'system_stress_patches' into 13
2016-04-26 04:56:36 -05:00
bucket.c
A couple minor cleanup tweaks.
2015-03-25 18:37:04 +00:00
buildinfo.c
…
callerid.c
SIP diversion: Fix REDIRECTING(reason) value inconsistencies.
2016-03-01 20:13:39 -06:00
ccss.c
ccss.c: Replace space in taskprocessor name.
2016-01-08 20:12:34 -06:00
cdr.c
main/cdr: Allow setting properties on a finalized CDR if it is the last one
2016-01-02 10:35:15 -06:00
cel.c
cel.c: Fix mismatch in ast_cel_track_event() return type.
2016-02-17 13:33:42 -06:00
channel_internal_api.c
channel api: Create is_t38_active accessor functions.
2016-02-29 12:50:19 -06:00
channel.c
bridge core: Add owed T.38 terminate when channel leaves a bridge.
2016-02-29 12:50:19 -06:00
chanvars.c
res_phoneprov: Refactor phoneprov to allow pluggable config providers
2014-10-09 17:45:23 +00:00
cli.c
Restrict CLI/AMI commands on shutdown.
2016-03-24 09:29:07 -05:00
codec_builtin.c
format: Update the maximum packetization time for iLBC 30.
2015-10-21 12:11:03 -05:00
codec.c
Replace most uses of ast_register_atexit with ast_register_cleanup.
2015-03-26 22:19:21 +00:00
config_options.c
config_options.c: Expand #ifdef to contain whole if statement.
2016-05-06 04:28:58 -05:00
config.c
config: Fix ast_config_text_file_save2 writability check for missing files
2016-04-25 18:16:58 -05:00
core_local.c
bridge.c: Crash during attended transfer when missing a local channel half
2016-03-03 13:55:24 -06:00
core_unreal.c
Bridge system: Fix memory leaks and double frees on impart failure.
2016-04-22 16:44:04 -05:00
crypt.c
Fix utils directory breakage.
2013-07-04 13:06:15 +00:00
cygload.c
…
data.c
Replace most uses of ast_register_atexit with ast_register_cleanup.
2015-03-26 22:19:21 +00:00
datastore.c
This is no longer needed.
2013-06-29 00:18:57 +00:00
db.c
AMI: Make AMI actions that generate event lists consistent.
2015-01-09 17:54:49 +00:00
devicestate.c
devicestate: Cleanup engine thread during graceful shutdown.
2016-01-10 18:10:37 -05:00
dial.c
main/dial: Protect access to the format_cap structure of the requesting channel
2015-11-04 14:31:28 -06:00
dns.c
Clean up files that do not end with newlines
2014-08-21 14:52:06 +00:00
dnsmgr.c
Replace most uses of ast_register_atexit with ast_register_cleanup.
2015-03-26 22:19:21 +00:00
dsp.c
res_pjsip: Add an 'auto' option for DTMF Mode
2015-04-10 17:53:44 +00:00
ecdisa.h
…
endpoints.c
stasis_cache_pattern: Backport to 13
2016-01-05 12:29:31 -06:00
enum.c
clang compiler warnings: Fix autological comparisons
2015-04-09 12:56:30 +00:00
event.c
Clang: change previous tautological-compare fixes.
2015-04-23 18:26:55 +02:00
features_config.c
bridge_basic: don't cache xferfailsound during an attended transfer
2016-01-15 17:45:51 -06:00
features.c
Bridge system: Fix memory leaks and double frees on impart failure.
2016-04-22 16:44:04 -05:00
file.c
file: Ensure nativeformats remains valid for lifetime of use.
2016-05-05 13:01:12 -03:00
fixedjitterbuf.c
…
fixedjitterbuf.h
…
format_cache.c
format_cache.c: Add missing slin12 format to ast_format_cache_is_slinear().
2015-04-08 16:23:00 +00:00
format_cap.c
Codecs: strip codec name while parsing allow/disallow options
2016-04-11 17:25:08 -04:00
format_compatibility.c
chan_iax2: Several media format fixes.
2014-08-07 18:51:16 +00:00
format.c
format: Register format-attribute module with cached formats.
2015-11-13 09:26:37 +01:00
frame.c
frame.c: Copy the whole subclass in ast_frdup().
2016-04-06 11:12:48 -05:00
framehook.c
clang compiler warnings: Fix format specified in framehook
2015-04-06 17:52:13 +00:00
fskmodem_float.c
…
fskmodem_int.c
…
fskmodem.c
…
global_datastores.c
Detect potential forwarding loops based on count.
2015-04-17 15:57:10 -05:00
hashtab.c
hashtab: Add NULL check when destroying iterator.
2015-11-14 08:06:35 -05:00
heap.c
Fix incorrect usages of ast_realloc().
2013-09-10 18:05:47 +00:00
http.c
AST-2016-001 http: Provide greater control of TLS and set modern defaults.
2016-02-03 15:07:56 -06:00
image.c
Replace most uses of ast_register_atexit with ast_register_cleanup.
2015-03-26 22:19:21 +00:00
indications.c
clang compiler warnings: Fix autological comparisons
2015-04-09 12:56:30 +00:00
io.c
Allow Asterisk to compile under GCC 4.10
2014-05-09 22:49:26 +00:00
jitterbuf.c
clang compiler warnings: Fix -Wabsolute-value warnings
2015-03-30 02:44:57 +00:00
json.c
ARI: Fix crash if integer values used in JSON payload 'variables' object.
2015-02-27 18:23:22 +00:00
libasteriskpj.c
build-system: Allow building with static pjproject
2016-03-01 09:33:17 -07:00
libasteriskssl.c
tcptls: Avoiding ERR_remove_state in OpenSSL.
2015-05-08 08:34:22 -05:00
libasteriskssl.exports.in
…
loader.c
loader: Retry dlopen when loading fails
2016-03-03 15:37:48 -06:00
lock.c
lock.c: Check *lt before dereferencing it
2016-04-21 11:35:37 -05:00
logger.c
logger: Add PID to syslog messages.
2016-05-12 05:12:05 -05:00
Makefile
pjproject_bundled: Various fixes discovered during testing of OSes
2016-05-03 06:54:29 -06:00
manager_bridges.c
Replace most uses of ast_register_atexit with ast_register_cleanup.
2015-03-26 22:19:21 +00:00
manager_channels.c
manager_channels.c: Fix allocation failure crash.
2016-04-22 16:44:05 -05:00
manager_endpoints.c
res_pjsip: Add AMI events for chan_pjsip contact lifecycle changes
2015-05-26 15:32:45 -06:00
manager_mwi.c
Replace most uses of ast_register_atexit with ast_register_cleanup.
2015-03-26 22:19:21 +00:00
manager_system.c
Replace most uses of ast_register_atexit with ast_register_cleanup.
2015-03-26 22:19:21 +00:00
manager.c
Manager: Short circuit AMI message processing.
2016-04-22 16:44:05 -05:00
max_forwards.c
Detect potential forwarding loops based on count.
2015-04-17 15:57:10 -05:00
md5.c
…
media_index.c
media formats: re-architect handling of media for performance improvements
2014-07-20 22:06:33 +00:00
message.c
CHAOS: cleanup possible null vars on msg alloc failure
2016-03-02 12:00:37 -06:00
mixmonitor.c
Removed quotes from svn:keywords props on a few files.
2013-07-29 17:51:25 +00:00
named_acl.c
acl: Fix reloading of configuration if configuration file does not exist at startup.
2014-12-20 20:57:19 +00:00
named_locks.c
lock: Add named lock capability
2016-04-08 12:50:58 -06:00
netsock2.c
Audit ast_sockaddr_resolve() usage for memory leaks.
2015-03-17 21:49:30 +00:00
netsock.c
Move eid functions to utils.c, mark netsock.h deprecated
2014-06-24 02:50:15 +00:00
optional_api.c
Logger/CLI/etc.: Fix some aesthetic issues; reduce chatty verbose messages
2014-05-28 22:54:12 +00:00
parking.c
res_pjsip_refer: Fix bugs involving Parking/PJSIP/transfers
2014-05-22 15:52:30 +00:00
pbx_app.c
main/pbx: Move dialplan application management routines to pbx_app.c.
2016-01-05 12:09:38 -05:00
pbx_builtins.c
asterisk.h: Add ASTERISK_REGISTER_FILE macro
2016-01-05 15:10:09 -07:00
pbx_functions.c
asterisk.h: Add ASTERISK_REGISTER_FILE macro
2016-01-05 15:10:09 -07:00
pbx_hangup_handler.c
main/pbx: Move hangup handler routines to pbx_hangup_handler.c.
2016-01-05 12:10:16 -05:00
pbx_private.h
main/pbx: Move dialplan application management routines to pbx_app.c.
2016-01-05 12:09:38 -05:00
pbx_switch.c
main/pbx: Move switch routines to pbx_switch.c.
2016-01-05 12:07:43 -05:00
pbx_timing.c
main/pbx: Move timing routines to pbx_timing.c.
2016-01-05 12:06:23 -05:00
pbx_variables.c
main/pbx: Move variable routines to pbx_variables.c.
2016-01-04 17:26:40 -05:00
pbx.c
Merge "pbx.c: Minor code rearangements." into 13
2016-04-08 11:18:33 -05:00
pickup.c
Replace most uses of ast_register_atexit with ast_register_cleanup.
2015-03-26 22:19:21 +00:00
plc.c
…
poll.c
…
presencestate.c
AMI: Escape string values.
2015-06-03 14:03:18 -05:00
privacy.c
…
rtp_engine.c
res_rtp_asterisk: Use separate SRTP session for RTCP with DTLS
2016-03-29 09:29:45 -05:00
say.c
app_voicemail, say: Add support for Japanese Language
2014-06-30 04:00:19 +00:00
sched.c
sched.c: Ensure oldest expiring entry runs first.
2016-03-15 12:01:50 -05:00
sdp_srtp.c
res_rtp_asterisk: Use separate SRTP session for RTCP with DTLS
2016-03-29 09:29:45 -05:00
security_events.c
Clang: change previous tautological-compare fixes.
2015-04-23 18:26:55 +02:00
sem.c
Various fixes for OS X
2015-01-26 14:49:32 +00:00
sha1.c
…
sip_api.c
…
slinfactory.c
media formats: re-architect handling of media for performance improvements
2014-07-20 22:06:33 +00:00
smoother.c
media formats: re-architect handling of media for performance improvements
2014-07-20 22:06:33 +00:00
sorcery.c
sorcery: Refactor create, update and delete to better deal with caches
2016-02-29 11:31:18 -06:00
sounds_index.c
Replace most uses of ast_register_atexit with ast_register_cleanup.
2015-03-26 22:19:21 +00:00
srv.c
…
stasis_bridges.c
core: Don't create snapshots with locks.
2015-03-10 23:09:17 +00:00
stasis_cache_pattern.c
stasis_cache_pattern: Backport to 13
2016-01-05 12:29:31 -06:00
stasis_cache.c
main/stasis: Allow subscriptions to use a threadpool for message delivery
2014-12-01 17:57:12 +00:00
stasis_channels.c
json: Audit ast_json_* usage for thread safety.
2015-12-16 17:17:30 -04:00
stasis_endpoints.c
stasis_endpoints: Add new Status and Headers to ContactStatus
2016-05-05 16:30:44 -04:00
stasis_message_router.c
res_pjsip: make it unloadable (take 2)
2015-01-27 19:08:44 +00:00
stasis_message.c
Manager: Short circuit AMI message processing.
2016-04-22 16:44:05 -05:00
stasis_system.c
Stasis: Allow message types to be blocked
2014-08-06 12:55:28 +00:00
stasis.c
Stasis: Create human friendly taskprocessor/serializer names.
2016-01-08 22:03:28 -06:00
strcompat.c
…
stringfields.c
stringfields: Refactor to allow fields to be added to the end of structures
2016-04-04 18:07:18 -06:00
strings.c
Use doubles instead of floats for conversions when comparing strings.
2016-05-12 14:36:25 -05:00
stun.c
Replace most uses of ast_register_atexit with ast_register_cleanup.
2015-03-26 22:19:21 +00:00
syslog.c
main/syslog: Allow dynamic logs, such as security events, to log to the syslog
2015-01-12 18:01:24 +00:00
taskprocessor.c
taskprocessor.c: Increase CLI "core ping taskprocessor" timeout.
2016-01-19 16:37:12 -06:00
tcptls.c
Check for OpenSSL defines before trying to use them.
2016-02-04 16:57:38 -06:00
tdd.c
…
term.c
main: Slight refactor of main. Improve color situation.
2015-11-25 20:29:42 +01:00
test.c
test.c: Add unit test registration checks for summary and description.
2015-06-24 17:12:19 -05:00
threadpool.c
res_pjsip: Deny requests when threadpool queue is backed up.
2015-11-12 11:41:27 -05:00
threadstorage.c
Replace most uses of ast_register_atexit with ast_register_cleanup.
2015-03-26 22:19:21 +00:00
timing.c
Replace most uses of ast_register_atexit with ast_register_cleanup.
2015-03-26 22:19:21 +00:00
translate.c
translate: Avoid a warning message when doing FEC within Opus Codec.
2015-12-08 03:51:18 -06:00
udptl.c
udptl: Don't eat sequence numbers until OK is received
2016-05-18 14:05:47 -05:00
ulaw.c
…
uri.c
uri: Quiet warning about type qualifiers ignored on function return type
2014-08-21 14:39:27 +00:00
utils.c
stringfields: Refactor to allow fields to be added to the end of structures
2016-04-04 18:07:18 -06:00
uuid.c
Fix printf problems with high ascii characters after r413586 (1.8).
2014-12-17 09:54:00 +00:00
xml.c
Detect and use xsltCleanupGlobals when available
2013-10-03 18:00:15 +00:00
xmldoc.c
xmldoc: Improve xmldoc wrapping of 'core show ...' output.
2015-11-06 14:45:19 +01:00