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Slow destination DNS resolution in Android API 32+ (fail for Emulated API 32) #4334

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micha102 opened this issue Mar 3, 2025 · 1 comment · May be fixed by #4333
Open

Slow destination DNS resolution in Android API 32+ (fail for Emulated API 32) #4334

micha102 opened this issue Mar 3, 2025 · 1 comment · May be fixed by #4333

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@micha102
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micha102 commented Mar 3, 2025 •
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Describe the bug

DNS to resolve destination FQDN is very slow in Android API . It takes 4 seconds per DNS attempt (either success of failure), so 8 seconds if IPV6 is supported.
Deactivating IPV6 cut the delay by half, but it's still very slow.
Counting all DNS requests, between clicking "Start Library" and the actual TX REGISTER is 20 seconds. (all are due to DNS delay caused by getaddrinfo)
Setting Macro PJ_SOCK_HAS_GETADDRINFO is not satisfying because it doesn't support IPV6 (only V4)

Debugging the code brought me to the file addr_resolv_sock.c and specifically to the getaddrinfo (inside pj_getaddrinfo) which is taking 4 seconds to fulfill either the answer is good (A) or empty (AAAA).

I found in Android documentation they introduced new DNS lookup functions android_res_nquery and android_res_nresult, and I tested them successfully.

Steps to reproduce

  1. Compile on Ubuntu PJSIP release 2.15.1 for Android with openSSL 3.4.1, IPv6 and NDK 27c
  2. Get the jni libraries and put them inside the pjsua2 folder of the Android samples
  3. Modify the sample app-kotlin with ACC_DOMAIN, ACC_REGISTRAR and ACC_PROXY pointing to an FQDN (and not IP address)
    For example : I put my local PBX (Cisco CUCM) with fqdn cucm15.mylab.local
  4. Run the app-kotlin and click on "Start library"
    5a. Tested on (huge delay/fail) :
    Xiaomi Mi 9T with LineageOS (Android API 35) ARM64-V8A
    Emulated Pixel 6 Pro with (Android API 35) X86_64
    Emulated Pixel 6 Pro with (Android API 34) X86_64
    20 seconds delay and then REGISTER OK

Emulated Pixel 6 Pro with (Android API 32) X86_64 and the DNS lookup fails altogether and doesn't register.

5b. Tested on Emulated Pixel 6 Pro with (Android API 31) X86_64 works good.

PJSIP version

2.15.1

Context

  1. Compiled for Android on Ubuntu 24.04
  2. Used this script to build all 4 processor variants
  3. Put the 4 resulting folders inside android\pjsua2\src\main\jniLibs
  4. Using Android Studio on Windows and connect to Android smartphone with ADB, or create an emulated device through the built-in Emulator by selecting the device and the image
  5. Load android sample apps, and launch app-kotlin

Log, call stack, etc

Emulated Pixel 6 Pro with (Android API 35) X86_64 (20 seconds delay)


 I  23:28:22.289           pjsua_core.c  .1 SIP worker threads created
 I  23:28:22.289           pjsua_core.c  .pjsua version 2.15.1 for Linux-6.6.50/x86_64 initialized
 I  23:28:22.289           pjsua_core.c  .PJSUA state changed: CREATED --> INIT
 I  23:28:22.300             tlstp:5061  SIP TLS listener is ready for incoming connections at 10.0.2.16:5061
 I  23:28:22.316            pjsua_acc.c  Adding account: id=Kotlin <sip:[email protected]>
 I  23:28:22.316            pjsua_acc.c  .Account Kotlin <sip:[email protected]> added with id 0
 I  23:28:22.317            pjsua_acc.c  .Acc 0: setting registration..
 D  app_time_stats: avg=16.33ms min=4.02ms max=21.44ms count=61
 D  app_time_stats: avg=16.58ms min=14.54ms max=19.81ms count=60
 D  app_time_stats: avg=16.56ms min=14.01ms max=19.67ms count=60
 D  app_time_stats: avg=16.60ms min=14.36ms max=19.17ms count=60
 D  app_time_stats: avg=16.52ms min=10.80ms max=20.29ms count=61
 D  app_time_stats: avg=16.61ms min=13.88ms max=19.33ms count=60
 I  23:28:30.384     tlsc0x718e2be6c198  ..TLS client transport created
 I  23:28:30.388     tlsc0x718e2be6c198  ..TLS transport 10.0.2.16:45271 is connecting to cucm15.mylab.local:5061...
 I  23:28:30.388            pjsua_acc.c  ..Contact for acc 0 updated: "Kotlin" <sip:[email protected]:45271;transport=TLS;ob>;reg-id=1;+sip.instance="<urn:uuid:00000000-0000-0000-0000-0000e922f243>"
 I  23:28:30.393        ssl_sock_ossl.c !OpenSSL version : 269488255
 I  23:28:30.396      ssl0x718f1be6ef50  Certificate chain loaded from buffer
 I  23:28:30.399      ssl0x718f1be6ef50  Private key loaded from buffer
 I  23:28:30.415     tlsc0x718e2be6c198  TLS transport 10.0.2.16:45271 is connected to cucm15.mylab.local:5061
 I  23:28:42.492           pjsua_core.c  ...TX 741 bytes Request msg REGISTER/cseq=50761 (tdta0x718e1beefa78) to TLS 192.168.1.156:5061:
 I  REGISTER sip:cucm15.mylab.local:5061;transport=TLS SIP/2.0
 I  Via: SIP/2.0/TLS 10.0.2.16:45271;rport;branch=z9hG4bKPjdf15f9bb-21b8-4d9d-85e4-9a85c4f4fe82;alias
 I  Route: <sip:cucm15.mylab.local:5061;transport=tls;lr>
 I  Max-Forwards: 70
 I  From: "Kotlin" <sip:[email protected]>;tag=b171dfd2-1736-43b0-8ca1-122212134e83
 I  To: "Kotlin" <sip:[email protected]>
 I  Call-ID: 07654c69-001f-4950-bf95-26de264b9841
 I  CSeq: 50761 REGISTER
 I  Supported: outbound, path
 I  Contact: "Kotlin" <sip:[email protected]:45271;transport=TLS;ob>;reg-id=1;+sip.instance="<urn:uuid:00000000-0000-0000-0000-0000e922f243>"
 I  Expires: 300
 I  Allow: PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, INFO, SUBSCRIBE, NOTIFY, REFER, MESSAGE, OPTIONS
 I  Content-Length:  0
 I  
 I  
 I  --end msg--
 I  23:28:42.497            pjsua_acc.c  ..Acc 0: Registration sent
 I  23:28:42.498           pjsua_core.c  PJSUA state changed: INIT --> STARTING
 I  23:28:42.499         sip_endpoint.c  .Module "mod-unsolicited-mwi" registered
 I  23:28:42.500           pjsua_core.c  .PJSUA state changed: STARTING --> RUNNING
 I  23:28:42.511           pjsua_core.c  .RX 405 bytes Response msg 100/REGISTER/cseq=50761 (rdata0x718e2be6c490) from TLS 192.168.1.156:5061:
 I  SIP/2.0 100 Trying
 I  Via: SIP/2.0/TLS 10.0.2.16:45271;rport;branch=z9hG4bKPjdf15f9bb-21b8-4d9d-85e4-9a85c4f4fe82;alias;received=192.168.1.50
 I  From: "Kotlin" <sip:[email protected]>;tag=b171dfd2-1736-43b0-8ca1-122212134e83
 I  To: "Kotlin" <sip:[email protected]>
 I  Date: Mon, 03 Mar 2025 22:28:42 GMT
 I  Call-ID: 07654c69-001f-4950-bf95-26de264b9841
 I  CSeq: 50761 REGISTER
 I  Content-Length: 0
 I  
 I  
 I  --end msg--
 I  Skipped 1234 frames!  The application may be doing too much work on its main thread.
 D  app_time_stats: avg=247.66ms min=12.80ms max=13648.99ms count=59
 I  Davey! duration=20600ms; Flags=0, FrameTimelineVsyncId=25796, IntendedVsync=146536556954, Vsync=167103222798, InputEventId=185752232, HandleInputStart=167118634000, AnimationStart=167118650100, PerformTraversalsStart=167120910200, DrawStart=167123066400, FrameDeadline=153519890008, FrameInterval=167118086300, FrameStartTime=16666666, SyncQueued=167123521100, SyncStart=167123678700, IssueDrawCommandsStart=167123741400, SwapBuffers=167124651100, FrameCompleted=167137687400, DequeueBufferDuration=20000, QueueBufferDuration=278500, GpuCompleted=167137687400, SwapBuffersCompleted=167125613700, DisplayPresentTime=0, CommandSubmissionCompleted=167124651100, 
 I  23:28:42.622           pjsua_core.c  .RX 527 bytes Response msg 401/REGISTER/cseq=50761 (rdata0x718e2be6c490) from TLS 192.168.1.156:5061:
 I  SIP/2.0 401 Unauthorized
 I  Via: SIP/2.0/TLS 10.0.2.16:45271;rport;branch=z9hG4bKPjdf15f9bb-21b8-4d9d-85e4-9a85c4f4fe82;alias;received=192.168.1.50
 I  From: "Kotlin" <sip:[email protected]>;tag=b171dfd2-1736-43b0-8ca1-122212134e83
 I  To: "Kotlin" <sip:[email protected]>;tag=267963812
 I  Date: Mon, 03 Mar 2025 22:28:42 GMT
 I  Call-ID: 07654c69-001f-4950-bf95-26de264b9841
 I  CSeq: 50761 REGISTER
 I  WWW-Authenticate: Digest realm="ccmsipline", nonce="Nxg8gjqn1+bnZZFUL++ObWywbceqR/c4", algorithm=MD5
 I  Content-Length: 0
 I  
 I  
 I  --end msg--
 I  23:28:42.624            pjsua_acc.c  ....IP address change detected for account 0 (10.0.2.16:45271 --> 192.168.1.50:45271). Updating registration (using method 4)
 I  23:28:42.624            pjsua_acc.c  ....Contact for acc 0 updated: <sip:[email protected]:45271;transport=TLS;ob>;reg-id=1;+sip.instance="<urn:uuid:00000000-0000-0000-0000-0000e922f243>"
 I  23:28:42.625           pjsua_core.c  ....TX 951 bytes Request msg REGISTER/cseq=50762 (tdta0x718e1beefa78) to TLS 192.168.1.156:5061:
 I  REGISTER sip:cucm15.mylab.local:5061;transport=TLS SIP/2.0
 I  Via: SIP/2.0/TLS 192.168.1.50:45271;rport;branch=z9hG4bKPjb2e9904b-838a-40c1-b0fa-38bf05f480e6;alias
 I  Route: <sip:cucm15.mylab.local:5061;transport=tls;lr>
 I  Max-Forwards: 70
 I  From: "Kotlin" <sip:[email protected]>;tag=b171dfd2-1736-43b0-8ca1-122212134e83
 I  To: "Kotlin" <sip:[email protected]>
 I  Call-ID: 07654c69-001f-4950-bf95-26de264b9841
 I  CSeq: 50762 REGISTER
 I  Supported: outbound, path
 I  Contact: <sip:[email protected]:45271;transport=TLS;ob>;reg-id=1;+sip.instance="<urn:uuid:00000000-0000-0000-0000-0000e922f243>"
 I  Expires: 300
 I  Allow: PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, INFO, SUBSCRIBE, NOTIFY, REFER, MESSAGE, OPTIONS
 I  Authorization: Digest username="1000", realm="ccmsipline", nonce="Nxg8gjqn1+bnZZFUL++ObWywbceqR/c4", uri="sip:cucm15.mylab.local:5061;transport=TLS", response="74487e212532abcf1cd80a4485b168ab", algorithm=MD5
 I  Content-Length:  0
 I  
 I  
 I  --end msg--
 I  23:28:42.634           pjsua_core.c  .RX 386 bytes Response msg 100/REGISTER/cseq=50762 (rdata0x718e2be6c490) from TLS 192.168.1.156:5061:
 I  SIP/2.0 100 Trying
 I  Via: SIP/2.0/TLS 192.168.1.50:45271;rport;branch=z9hG4bKPjb2e9904b-838a-40c1-b0fa-38bf05f480e6;alias
 I  From: "Kotlin" <sip:[email protected]>;tag=b171dfd2-1736-43b0-8ca1-122212134e83
 I  To: "Kotlin" <sip:[email protected]>
 I  Date: Mon, 03 Mar 2025 22:28:42 GMT
 I  Call-ID: 07654c69-001f-4950-bf95-26de264b9841
 I  CSeq: 50762 REGISTER
 I  Content-Length: 0
 I  
 I  
 I  --end msg--
 I  23:28:42.648           pjsua_core.c  .RX 611 bytes Response msg 200/REGISTER/cseq=50762 (rdata0x718e2be6c490) from TLS 192.168.1.156:5061:
 I  SIP/2.0 200 OK
 I  Via: SIP/2.0/TLS 192.168.1.50:45271;rport;branch=z9hG4bKPjb2e9904b-838a-40c1-b0fa-38bf05f480e6;alias
 I  From: "Kotlin" <sip:[email protected]>;tag=b171dfd2-1736-43b0-8ca1-122212134e83
 I  To: "Kotlin" <sip:[email protected]>;tag=1634883379
 I  Date: Mon, 03 Mar 2025 22:28:42 GMT
 I  Call-ID: 07654c69-001f-4950-bf95-26de264b9841
 I  Server: Cisco-CUCM15.0
 I  CSeq: 50762 REGISTER
 I  Expires: 120
 I  Contact: <sip:[email protected]:45271;transport=TLS;ob>;reg-id=1;+sip.instance="<urn:uuid:00000000-0000-0000-0000-0000e922f243>";x-cisco-newreg
 I  Supported: X-cisco-sis-10.0.0
 I  Content-Length: 0
 I  
 I  
 I  --end msg--
 I  23:28:42.653            pjsua_acc.c  ....SIP outbound status for acc 0 is not active
 I  23:28:42.653            pjsua_acc.c  ....Service-Route updated for acc 0 with 0 URI(s)
 I  23:28:42.654            pjsua_acc.c  ....Kotlin <sip:[email protected]>: registration success, status=200 (OK), will re-register in 120 seconds
 I  23:28:42.671     tlsc0x718e2be6c198  TLS connection closed


Emulated Pixel 6 Pro with (Android API 32) X86_64 (DNS fails)


I  23:34:31.549           pjsua_core.c  .1 SIP worker threads created
I  23:34:31.550           pjsua_core.c  .pjsua version 2.15.1 for Linux-5.10.101/x86_64 initialized
I  23:34:31.550           pjsua_core.c  .PJSUA state changed: CREATED --> INIT
I  23:34:31.564             tlstp:5061  SIP TLS listener is ready for incoming connections at 10.0.2.16:5061
I  23:34:31.572            pjsua_acc.c  Adding account: id=Kotlin <sip:[email protected]>
I  23:34:31.574            pjsua_acc.c  .Account Kotlin <sip:[email protected]> added with id 0
I  23:34:31.574            pjsua_acc.c  .Acc 0: setting registration..
D  app_time_stats: avg=3.51ms min=2.19ms max=4.94ms count=61
D  app_time_stats: avg=3.55ms min=2.23ms max=5.44ms count=61
D  app_time_stats: avg=3.44ms min=2.28ms max=5.89ms count=60
D  app_time_stats: avg=3.51ms min=2.09ms max=5.36ms count=61
D  app_time_stats: avg=3.52ms min=2.01ms max=5.91ms count=60
I  23:34:39.617            pjsua_acc.c  ..Unable to resolve host to generate Contact address
I  23:34:39.617            pjsua_acc.c  ..Contact for acc 0 updated: "Kotlin" <sip:[email protected]:5061;transport=TLS;ob>;reg-id=1;+sip.instance="<urn:uuid:00000000-0000-0000-0000-0000e922f243>"
I  23:34:47.672            pjsua_acc.c  ..Unable to resolve host to generate Contact address
I  23:34:51.695          sip_resolve.c  ...Failed to resolve 'cucm15.mylab.local.local': Unknown pjlib error 70018
I  23:34:51.696      tsx0x72b352469188  ...Failed to send Request msg REGISTER/cseq=8370 (tdta0x72b3824d5988)! err=70018 (Unknown pjlib error 70018)
I  23:34:51.697            pjsua_acc.c  .....SIP registration failed, status=502 (Unknown pjlib error 70018)
I  23:34:51.697            pjsua_acc.c  .....Service-Route updated for acc 0 with 0 URI(s)
I  23:34:51.698            pjsua_acc.c  .....Scheduling re-registration retry for acc 0 in 1 seconds..
I  23:34:51.698              sip_reg.c  ..Error sending request: Unknown pjlib error 70018
I  23:34:51.699           pjsua_core.c  PJSUA state changed: INIT --> STARTING
I  23:34:51.699         sip_endpoint.c  .Module "mod-unsolicited-mwi" registered
I  23:34:51.700           pjsua_core.c  .PJSUA state changed: STARTING --> RUNNING
I  Skipped 1274 frames!  The application may be doing too much work on its main thread.
D  app_time_stats: avg=253.92ms min=2.11ms max=14263.78ms count=57




Emulated Pixel 6 Pro Android API 31 X86_64 (Works good)


I  23:56:38.999           pjsua_core.c  .1 SIP worker threads created
I  23:56:39.000           pjsua_core.c  .pjsua version 2.15.1 for Linux-5.10.185/x86_64 initialized
I  23:56:39.001           pjsua_core.c  .PJSUA state changed: CREATED --> INIT
I  23:56:39.022             tlstp:5061  SIP TLS listener is ready for incoming connections at 10.0.2.16:5061
I  23:56:39.056            pjsua_acc.c  Adding account: id=Kotlin <sip:[email protected]>
I  23:56:39.058            pjsua_acc.c  .Account Kotlin <sip:[email protected]> added with id 0
I  23:56:39.059            pjsua_acc.c  .Acc 0: setting registration..
I  23:56:39.164     tlsc0x6ffb8cbbd938  ..TLS client transport created
I  23:56:39.166     tlsc0x6ffb8cbbd938  ..TLS transport 10.0.2.16:55671 is connecting to cucm15.mylab.local.local:5061...
I  23:56:39.166            pjsua_acc.c  ..Contact for acc 0 updated: "Kotlin" <sip:[email protected]:55671;transport=TLS;ob>;reg-id=1;+sip.instance="<urn:uuid:00000000-0000-0000-0000-0000e922f243>"
I  23:56:39.176        ssl_sock_ossl.c !OpenSSL version : 269488255
I  23:56:39.177      ssl0x6ffadcbb0480  Certificate chain loaded from buffer
I  23:56:39.178      ssl0x6ffadcbb0480  Private key loaded from buffer
I  23:56:39.261     tlsc0x6ffb8cbbd938 !TLS transport 10.0.2.16:55671 is connected to cucm15.mylab.local.local:5061
I  23:56:39.300           pjsua_core.c  ...TX 741 bytes Request msg REGISTER/cseq=26412 (tdta0x6ffb4cc27a08) to TLS 192.168.1.156:5061:
I  REGISTER sip:cucm15.mylab.local.local:5061;transport=TLS SIP/2.0
I  Via: SIP/2.0/TLS 10.0.2.16:55671;rport;branch=z9hG4bKPjd38852e0-9da1-4c5b-954d-571b123494e0;alias
I  Route: <sip:cucm15.mylab.local.local:5061;transport=tls;lr>
I  Max-Forwards: 70
I  From: "Kotlin" <sip:[email protected]>;tag=cd6e9210-ae10-4fbd-91c4-f8b5d55344b8
I  To: "Kotlin" <sip:[email protected]>
I  Call-ID: 4ac8f855-c37b-4f92-a526-a61af5727081
I  CSeq: 26412 REGISTER
I  Supported: outbound, path
I  Contact: "Kotlin" <sip:[email protected]:55671;transport=TLS;ob>;reg-id=1;+sip.instance="<urn:uuid:00000000-0000-0000-0000-0000e922f243>"
I  Expires: 300
I  Allow: PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, INFO, SUBSCRIBE, NOTIFY, REFER, MESSAGE, OPTIONS
I  Content-Length:  0
I  
I  
I  --end msg--
I  23:56:39.302            pjsua_acc.c  ..Acc 0: Registration sent
I  23:56:39.302           pjsua_core.c  PJSUA state changed: INIT --> STARTING
I  23:56:39.302         sip_endpoint.c  .Module "mod-unsolicited-mwi" registered
I  23:56:39.302           pjsua_core.c  .PJSUA state changed: STARTING --> RUNNING
I  23:56:39.315           pjsua_core.c  .RX 405 bytes Response msg 100/REGISTER/cseq=26412 (rdata0x6ffb8cbbdc30) from TLS 192.168.1.156:5061:
I  SIP/2.0 100 Trying
I  Via: SIP/2.0/TLS 10.0.2.16:55671;rport;branch=z9hG4bKPjd38852e0-9da1-4c5b-954d-571b123494e0;alias;received=192.168.1.50
I  From: "Kotlin" <sip:[email protected]>;tag=cd6e9210-ae10-4fbd-91c4-f8b5d55344b8
I  To: "Kotlin" <sip:[email protected]>
I  Date: Mon, 03 Mar 2025 22:56:39 GMT
I  Call-ID: 4ac8f855-c37b-4f92-a526-a61af5727081
I  CSeq: 26412 REGISTER
I  Content-Length: 0
I  
I  
I  --end msg--
I  Skipped 44 frames!  The application may be doing too much work on its main thread.
I  23:56:39.465           pjsua_core.c  .RX 528 bytes Response msg 401/REGISTER/cseq=26412 (rdata0x6ffb8cbbdc30) from TLS 192.168.1.156:5061:
I  SIP/2.0 401 Unauthorized
I  Via: SIP/2.0/TLS 10.0.2.16:55671;rport;branch=z9hG4bKPjd38852e0-9da1-4c5b-954d-571b123494e0;alias;received=192.168.1.50
I  From: "Kotlin" <sip:[email protected]>;tag=cd6e9210-ae10-4fbd-91c4-f8b5d55344b8
I  To: "Kotlin" <sip:[email protected]>;tag=1554244053
I  Date: Mon, 03 Mar 2025 22:56:39 GMT
I  Call-ID: 4ac8f855-c37b-4f92-a526-a61af5727081
I  CSeq: 26412 REGISTER
I  WWW-Authenticate: Digest realm="ccmsipline", nonce="goJEPFjwr0iAtvwHqH94rw27iys/0XF9", algorithm=MD5
I  Content-Length: 0
I  
I  
I  --end msg--
I  23:56:39.481            pjsua_acc.c  ....IP address change detected for account 0 (10.0.2.16:55671 --> 192.168.1.50:55671). Updating registration (using method 4)
I  23:56:39.485            pjsua_acc.c  ....Contact for acc 0 updated: <sip:[email protected]:55671;transport=TLS;ob>;reg-id=1;+sip.instance="<urn:uuid:00000000-0000-0000-0000-0000e922f243>"
I  23:56:39.488           pjsua_core.c  ....TX 951 bytes Request msg REGISTER/cseq=26413 (tdta0x6ffb4cc27a08) to TLS 192.168.1.156:5061:
I  REGISTER sip:cucm15.mylab.local.local:5061;transport=TLS SIP/2.0
I  Via: SIP/2.0/TLS 192.168.1.50:55671;rport;branch=z9hG4bKPj1e3f9d8b-90aa-40b4-b1bf-5556a373a320;alias
I  Route: <sip:cucm15.mylab.local.local:5061;transport=tls;lr>
I  Max-Forwards: 70
I  From: "Kotlin" <sip:[email protected]>;tag=cd6e9210-ae10-4fbd-91c4-f8b5d55344b8
I  To: "Kotlin" <sip:[email protected]>
I  Call-ID: 4ac8f855-c37b-4f92-a526-a61af5727081
I  CSeq: 26413 REGISTER
I  Supported: outbound, path
I  Contact: <sip:[email protected]:55671;transport=TLS;ob>;reg-id=1;+sip.instance="<urn:uuid:00000000-0000-0000-0000-0000e922f243>"
I  Expires: 300
I  Allow: PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, INFO, SUBSCRIBE, NOTIFY, REFER, MESSAGE, OPTIONS
I  Authorization: Digest username="1000", realm="ccmsipline", nonce="goJEPFjwr0iAtvwHqH94rw27iys/0XF9", uri="sip:cucm15.mylab.local.local:5061;transport=TLS", response="f83d2053cbb09743e6ff2466381b266b", algorithm=MD5
I  Content-Length:  0
I  
I  
I  --end msg--
I  23:56:39.498           pjsua_core.c  .RX 386 bytes Response msg 100/REGISTER/cseq=26413 (rdata0x6ffb8cbbdc30) from TLS 192.168.1.156:5061:
I  SIP/2.0 100 Trying
I  Via: SIP/2.0/TLS 192.168.1.50:55671;rport;branch=z9hG4bKPj1e3f9d8b-90aa-40b4-b1bf-5556a373a320;alias
I  From: "Kotlin" <sip:[email protected]>;tag=cd6e9210-ae10-4fbd-91c4-f8b5d55344b8
I  To: "Kotlin" <sip:[email protected]>
I  Date: Mon, 03 Mar 2025 22:56:40 GMT
I  Call-ID: 4ac8f855-c37b-4f92-a526-a61af5727081
I  CSeq: 26413 REGISTER
I  Content-Length: 0
I  
I  
I  --end msg--
D  app_time_stats: avg=12.10ms min=2.35ms max=27.45ms count=58
I  23:56:39.743           pjsua_core.c  .RX 611 bytes Response msg 200/REGISTER/cseq=26413 (rdata0x6ffb8cbbdc30) from TLS 192.168.1.156:5061:
I  SIP/2.0 200 OK
I  Via: SIP/2.0/TLS 192.168.1.50:55671;rport;branch=z9hG4bKPj1e3f9d8b-90aa-40b4-b1bf-5556a373a320;alias
I  From: "Kotlin" <sip:[email protected]>;tag=cd6e9210-ae10-4fbd-91c4-f8b5d55344b8
I  To: "Kotlin" <sip:[email protected]>;tag=1748907749
I  Date: Mon, 03 Mar 2025 22:56:40 GMT
I  Call-ID: 4ac8f855-c37b-4f92-a526-a61af5727081
I  Server: Cisco-CUCM15.0
I  CSeq: 26413 REGISTER
I  Expires: 120
I  Contact: <sip:[email protected]:55671;transport=TLS;ob>;reg-id=1;+sip.instance="<urn:uuid:00000000-0000-0000-0000-0000e922f243>";x-cisco-newreg
I  Supported: X-cisco-sis-10.0.0
I  Content-Length: 0
I  
I  
I  --end msg--
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micha102 commented Mar 3, 2025

#4333 PR to implement faster DNS resolution in Android

@micha102 micha102 changed the title Slow destination DNS resolution in Android API 32+ (fail for API 32) Slow destination DNS resolution in Android API 32+ (fail for Emulated API 32) Mar 3, 2025
@sauwming sauwming linked a pull request Mar 5, 2025 that will close this issue
Add support to new Android DNS functions android_res_nquery android_res_nresult (API 29+) #4333
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