sr-dev March 2014

sr-dev@lists.kamailio.org

29 participants
298 discussions

Outbound flow failure handling merged to master
by Hugh Waite 23 Nov '16

23 Nov '16

Hello, As you will see I have merged my branch back into master. These changes add a new event route [tm:branch-failure] to the tm module which is run when any failure response is received on a transaction. The event_route uses a new route type BRANCH_ROUTE which limits the functions that can be run in the route. The functions t_check_status(), t_next_contact_flow(), t_relay() and unregister() can be used in this route. A new pv $T_reply_ruid is accessible in this route which can be used to unregister a single contact entry. The following example route can be used on a registrar to handle failed or invalid flows: event_route[tm:branch-failure] { xlog("L_INFO", "event_route[tm:branch-failure]\n"); if (t_check_status("430|403")) { if (!unregister("location", "$tu", "$T_reply_ruid")) { xlog("L_WARN", "failed to unregister $tu with ruid $T_reply_ruid\n"); } if (!t_next_contact_flow()) { xlog("L_INFO", "No more flows\n"); } else { xlog("L_INFO", "Next flow\n"); t_relay(); } } } Any bugs, memory leaks etc. let me know! Hugh -- Hugh Waite Principal Design Engineer Crocodile RCS Ltd.

4 11

Fw: query related to NOTIFY message size
by Piyush.Bansal＠relianceada.com 17 Oct '14

17 Oct '14

please help ----- Forwarded by Piyush Bansal/RCOM/RelianceADA on 10/10/2013 10:51 AM ----- From: Piyush Bansal/RCOM/RelianceADA To: serusers(a)iptel.org, serdev(a)iptel.org Date: 10/09/2013 12:14 PM Subject: query related to NOTIFY message size Hi there, I have certain queries regarding batch SUBSCRIBE and NOTIFY. I have a user who has 100 buddies in his buddy list. If any of his buddy changes his/her presence status, that user gets a NOTIFY message with presence status of all the 100 buddies. In that case, the message size is exceeding 500 KB. Thats quite a higher value for a UDP packet. Can anybody suggest- 1. If there is any way to restrict the size of the packet. 2. How to ensure that the packet is received correctly by the client. Thanks and Regards, --Piyush Bansal The information contained in this electronic message (email) and any attachments to this email are intended for the exclusive use of the addressee(s) and access to this email by any one else is unauthorised. The email may contain proprietary, confidential or privileged information or information relating to Reliance Group. If you are not the intended recipient, please notify the sender by telephone, fax, or return email and delete this communication and any attachments thereto, immediately from your computer. Any dissemination, distribution, or copying of this communication and the attachments thereto (in whole or part), in any manner, is strictly prohibited and actionable at law. The recipient acknowledges that emails are susceptible to alteration and their integrity can not be guaranteed and that Company does not guarantee that any e-mail is virus-free and accept no liability for any damage caused by any virus transmitted by this email.

4 10

Kamailio on OS/X Mavericks
by Olle E. Johansson 04 Aug '14

04 Aug '14

Hi! Kamailio by default doesn't compile on OS/X Mavericks. $ make generating autover.h ... /Applications/Xcode.app/Contents/Developer/usr/bin/make --no-print-directory -wC . cfg-defs target architecture <x86_64>, host architecture <x86_64> making config... CC (gcc) [kamailio] action.o error: invalid value '9' in '-O9' make: *** [action.o] Error 1 $ gcc --version Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk/usr/include/c++/4.2.1 Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn) Target: x86_64-apple-darwin13.0.0 Thread model: posix Anyone that has found an optimal way to patch the Makefile? /O

3 6

[PATCH 1/1] websocket: remove libunistring dependency
by Timo Teräs 17 Jul '14

17 Jul '14

libunistring is old, slow, messy code and uncompilable on new systems. remove the sole user of it, and replace it with inline utf8 decoder implementation from http://bjoern.hoehrmann.de/utf-8/decoder/dfa/. improves performance and portability as libunistring is not needed. --- @Peter, Hugh: Would it be ok for me to push this? modules/websocket/Makefile | 2 +- modules/websocket/README | 1 - modules/websocket/doc/websocket_admin.xml | 3 -- modules/websocket/utf8_decode.h | 52 +++++++++++++++++++++++++++++++ modules/websocket/ws_frame.c | 4 +-- 5 files changed, 55 insertions(+), 7 deletions(-) create mode 100644 modules/websocket/utf8_decode.h diff --git a/modules/websocket/Makefile b/modules/websocket/Makefile index bb7c809..c686a82 100644 --- a/modules/websocket/Makefile +++ b/modules/websocket/Makefile @@ -27,7 +27,7 @@ else # E.g.: make TLS_HOOKS=1 TLS_EXTRA_LIBS="-lz -lkrb5" endif -LIBS+= $(TLS_EXTRA_LIBS) -lunistring +LIBS+= $(TLS_EXTRA_LIBS) # Static linking, if you'd like to use TLS and WEBSOCKET at the same time # diff --git a/modules/websocket/README b/modules/websocket/README index 49d8693..bdba3e4 100644 --- a/modules/websocket/README +++ b/modules/websocket/README @@ -316,7 +316,6 @@ onreply_route[WS_REPLY] { The following libraries must be installed before running Kamailio with this module loaded: * OpenSSL. - * GNU libunistring. 4. Parameters diff --git a/modules/websocket/doc/websocket_admin.xml b/modules/websocket/doc/websocket_admin.xml index fa7d300..e40dc09 100644 --- a/modules/websocket/doc/websocket_admin.xml +++ b/modules/websocket/doc/websocket_admin.xml @@ -262,9 +262,6 @@ onreply_route[WS_REPLY] { <listitem> <para><emphasis>OpenSSL</emphasis>.</para> </listitem> - <listitem> - <para><emphasis>GNU libunistring</emphasis>.</para> - </listitem> </itemizedlist> </para> </section> diff --git a/modules/websocket/utf8_decode.h b/modules/websocket/utf8_decode.h new file mode 100644 index 0000000..b274fe7 --- /dev/null +++ b/modules/websocket/utf8_decode.h @@ -0,0 +1,52 @@ +#include <stdint.h> +#include <stddef.h> + +// Copyright (c) 2008-2010 Bjoern Hoehrmann <bjoern(a)hoehrmann.de> +// See http://bjoern.hoehrmann.de/utf-8/decoder/dfa/ for details. + +#define UTF8_ACCEPT 0 +#define UTF8_REJECT 12 + +static const uint8_t utf8d[] = { + // The first part of the table maps bytes to character classes that + // to reduce the size of the transition table and create bitmasks. + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, + 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, + 8,8,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, + 10,3,3,3,3,3,3,3,3,3,3,3,3,4,3,3, 11,6,6,6,5,8,8,8,8,8,8,8,8,8,8,8, + + // The second part is a transition table that maps a combination + // of a state of the automaton and a character class to a state. + 0,12,24,36,60,96,84,12,12,12,48,72, 12,12,12,12,12,12,12,12,12,12,12,12, + 12, 0,12,12,12,12,12, 0,12, 0,12,12, 12,24,12,12,12,12,12,24,12,24,12,12, + 12,12,12,12,12,12,12,24,12,12,12,12, 12,24,12,12,12,12,12,12,12,24,12,12, + 12,12,12,12,12,12,12,36,12,36,12,12, 12,36,12,12,12,12,12,36,12,36,12,12, + 12,36,12,12,12,12,12,12,12,12,12,12, +}; + +static inline uint32_t decode(uint32_t* state, uint32_t* codep, uint32_t byte) +{ + uint32_t type = utf8d[byte]; + + *codep = (*state != UTF8_ACCEPT) ? + (byte & 0x3fu) | (*codep << 6) : + (0xff >> type) & (byte); + + *state = utf8d[256 + *state + type]; + return *state; +} + +static inline int IsUTF8(uint8_t* s, size_t len) +{ + uint32_t codepoint, state = 0; + + while (len--) + decode(&state, &codepoint, *s++); + + return state == UTF8_ACCEPT; +} + diff --git a/modules/websocket/ws_frame.c b/modules/websocket/ws_frame.c index a3a4cef..3562437 100644 --- a/modules/websocket/ws_frame.c +++ b/modules/websocket/ws_frame.c @@ -22,7 +22,7 @@ */ #include <limits.h> -#include <unistr.h> +#include "utf8_decode.h" #include "../../events.h" #include "../../receive.h" #include "../../stats.h" @@ -695,7 +695,7 @@ int ws_frame_transmit(void *data) frame.fin = 1; /* Can't be sure whether this message is UTF-8 or not so check to see if it "might" be UTF-8 and send as binary if it definitely isn't */ - frame.opcode = (u8_check((uint8_t *) wsev->buf, wsev->len) == NULL) ? + frame.opcode = IsUTF8((uint8_t *) wsev->buf, wsev->len) ? OPCODE_TEXT_FRAME : OPCODE_BINARY_FRAME; frame.payload_len = wsev->len; frame.payload_data = wsev->buf; -- 1.8.5.1

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Using t_suspend()/t_continue() multiple times on the same transaction
by Peter Dunkley 02 Jul '14

02 Jul '14

Hi, I am trying to use t_suspend()/t_continue() multiple times on the same transaction. Calling t_suspend() more than once works, but the second time I call t_continue() the transaction is killed and a 500 response is sent. It is the "if (branch == t->nr_of_outgoings)" check from the code fragment below (from t_suspend.c:t_continue()) that results in the transaction being killed - you can see the debug/error line I added to determine this in the fragment. Is using t_suspend()/t_continue() multiple times something that should work? Thanks, Peter if (t->uas.status < 200) { /* No final reply has been sent yet. * Check whether or not there is any pending branch. */ for ( branch = 0; branch < t->nr_of_outgoings; branch++ ) { if ((t->uac[branch].request.buffer != NULL) && (t->uac[branch].last_received < 200) ) break; } if (branch == t->nr_of_outgoings) { /* There is not any open branch so there is * no chance that a final response will be received. */ ret = 0; LM_ERR("branch == t->nr_of_outgoings\n"); goto kill_trans; } } -- Peter Dunkley Technical Director Crocodile RCS Ltd

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git:master: kex: new stats RPC commands
by Ovidiu Sas 19 May '14

19 May '14

Module: sip-router Branch: master Commit: 6f685460f1d7fd6ff07e55f2a807322168638988 URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=6f68546… Author: Ovidiu Sas <osas(a)voipembedded.com> Committer: Ovidiu Sas <osas(a)voipembedded.com> Date: Thu Jan 16 14:46:32 2014 -0500 kex: new stats RPC commands --- modules/kex/core_stats.c | 285 +++++++++++++++++++++++++++++++++++++++++ modules/kex/doc/kex.xml | 14 ++ modules/kex/doc/kex_admin.xml | 50 +++++++ 3 files changed, 349 insertions(+), 0 deletions(-) Diff: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commitdiff;h=6f6…

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module writing & per message variable within my module
by jay binks 08 May '14

08 May '14

So Im writing a custom module to implement some of our business logic, there are a few steps that im building into the module, for example conform_callerid conform_destination what I want to achive should be fairly simple, but let me explain and im sure someone will tell me where to look. when I call conform_callerid, I want to store a few bits of info so Initially I store them in a global variable ( yup lazy & dangerous I guess ) then I write the pv "get" function, to return the value from the global. this was only done as a quick proof of concept. but being global, im sure the variable will be overwritten by other message etc etc.. so I effectively want to store some custom fields against the message. I didnt see this on the msg structure, but maybe I missed something or is there a better way to achieve this ?? basically I want to be able to call conform_callerid then when I call conform_destination I want to look at some fields from the conform_callerid process ( within the context of the message we are processing ) any pointers would be appreciated. -- Sincerely Jay

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TM: Dynamic Branches
by Jan Gaida 29 Apr '14

29 Apr '14

Hello, In our installation of Kamailio 4.1.1 we need to branch messages and invites to more than 100 clients. The actual implementation only allows 12 branches. We have implemented new functions to be able to control up to 512 branches. Therefore we use several functions to control the bitmap and a dynamic array for uac branches. Every uac initializes with 12 branches as before, but when the limit is reached, new branches are dynamically added to the array. We are still in testing-phase but I would like to know if you would add this feature in some of the next versions. Regards -- *Jan **Gaida* Ingeniero Desarrollo Software C/ Marconi 3 (PTM) 28760 Tres Cantos Spain jan.gaida(a)grupoamper.com | www.grupoamper.com -- This message and any attachments are intended only for the use of the individual to whom they are addressed and it may contain information that is privileged or confidential. If you have received this communication by mistake, please notify us immediately by e-mail or telephone.The storage, recording, use or disclosure of this e-mail and its attachments by anyone other than the intended recipient is strictly prohibited. This message has been verified using antivirus software; however, the sender is not responsible for any damage to hardware or software resulting from the presence of any virus. Este mensaje y cualquier anexo son exclusivamente para la persona a quien van dirigidos y pueden contener información privilegiada o confidencial. Si usted ha recibido esta comunicación por error, le agradecemos notificarlo de inmediato por esta misma vía o por teléfono. Está prohibida su retención, grabación, utilización o divulgación con cualquier propósito. Este mensaje ha sido verificado con software antivirus; sin embargo, el remitente no se hace responsable en caso de que en éste o en los archivos adjuntos haya presencia de algún virus que pueda generar daños en los equipos o programas del destinatario.

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[SR-Dev] Capture RTP packet in Kamailio module
by Cock Ootec 27 Apr '14

27 Apr '14

Hi, I'd like to develop module for Kamailio which will be working with RTP/RTCP packets. Is there any way to capture and edit RTP packet in module of Kamailio for example in module extended from *topoh*? In topoh there are two events SREV_NET_DATA_IN and SREV_NET_DATA_OUT but I didn't be able to capture any RTP packets by them. Thanks in advance for any help or useful information.

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[PATCH] modules/sca: use Call-Info for canonical AoR
by Timo Teräs 22 Apr '14

22 Apr '14

RFC3261 8.1.1.2 states that To header "may or may not be the ultimate recipient of the request", and 8.1.1.3 states that From header is "possibly the user's address-of-record". So either of them cannot be fully trusted. This was already noted and fixed partially in commit 1ef4587612806a94 ("modules/sca: reconcile Contact and From URIs in ACK callback"). But similar issues happen when using ENUM and/or calling using local alias (numbers only, or local forward) and the destination is in another SIP domain. To-header contains the initial domain, and not the AoR domain. When handling response to such INVITE a sane way to determine correct AoR is to inspect the Call-Info header's Application Server URI. Thus this changes AoR canonicalization to happens as follow: 1. User portion is taken from Contact header if present, otherwise from the applicable From / To header. 2. Domain/port part is taken from Call-Info header if present, and otherwise from the applicable From / To header. --- This has not fully tested, but this seems to be the root case why SCA does not on certain inter-domain calls that I get. I'd like to get review comments, and possible other fix ideas. I'll let you know how the testing goes, and if looks OK to you can push this to master and relevant stable branches. modules/sca/sca_util.c | 51 +++++++++++++++++++++++++++----------------------- 1 file changed, 28 insertions(+), 23 deletions(-) diff --git a/modules/sca/sca_util.c b/modules/sca/sca_util.c index 143ac47..e209cc0 100644 --- a/modules/sca/sca_util.c +++ b/modules/sca/sca_util.c @@ -26,6 +26,7 @@ #include <assert.h> #include "sca_util.h" +#include "sca_call_info.h" #include "../../parser/sdp/sdp.h" @@ -343,9 +344,13 @@ sca_aor_create_from_info( str *aor, uri_type type, str *user, str *domain, sca_create_canonical_aor_for_ua( sip_msg_t *msg, str *c_aor, int ua_opts ) { struct to_body *tf = NULL; - sip_uri_t c_uri; - str tf_aor = STR_NULL; + str user_portion; + str domain_portion; + str port_portion = STR_NULL; str contact_uri = STR_NULL; + sip_uri_t c_uri; + sca_call_info call_info; + hdr_field_t *call_info_hdr; int rc = -1; assert( msg != NULL ); @@ -373,12 +378,6 @@ sca_create_canonical_aor_for_ua( sip_msg_t *msg, str *c_aor, int ua_opts ) } } - if ( sca_uri_extract_aor( &tf->uri, &tf_aor ) < 0 ) { - LM_ERR( "sca_create_canonical_aor: failed to extract AoR from " - "URI <%.*s>", STR_FMT( &tf->uri )); - goto done; - } - memset( &c_uri, 0, sizeof( sip_uri_t )); if (( rc = sca_get_msg_contact_uri( msg, &contact_uri )) < 0 ) { LM_ERR( "sca_create_canonical_aor: failed to get contact URI from " @@ -394,22 +393,28 @@ sca_create_canonical_aor_for_ua( sip_msg_t *msg, str *c_aor, int ua_opts ) } } - if ( SCA_STR_EMPTY( &c_uri.user ) || - SCA_STR_EQ( &c_uri.user, &tf->parsed_uri.user )) { - /* empty contact header or Contact user matches To/From AoR */ - c_aor->s = (char *)pkg_malloc( tf_aor.len ); - c_aor->len = tf_aor.len; - memcpy( c_aor->s, tf_aor.s, tf_aor.len ); + /* Prefer Contact header user, fallback to To/From */ + if ( SCA_STR_EMPTY( &c_uri.user ) ) + user_portion = tf->parsed_uri.user; + else + user_portion = c_uri.user; + + memset( &call_info, 0, sizeof( sca_call_info )); + call_info_hdr = sca_call_info_header_find( msg->headers ); + if ( !SCA_HEADER_EMPTY( call_info_hdr ) && + sca_call_info_body_parse( &call_info_hdr->body, &call_info ) >= 0 ) { + /* Call-Info present, use the server name as AoR domain */ + domain_portion = call_info.sca_uri; } else { - /* Contact user and To/From user mismatch */ - if ( sca_aor_create_from_info( c_aor, c_uri.type, - &c_uri.user, &tf->parsed_uri.host, - &tf->parsed_uri.port ) < 0 ) { - LM_ERR( "sca_create_canonical_aor: failed to create AoR from " - "Contact <%.*s> and URI <%.*s>", - STR_FMT( &contact_uri ), STR_FMT( &tf_aor )); - goto done; - } + /* Use To/From domain */ + domain_portion = tf->parsed_uri.host; + port_portion = tf->parsed_uri.port; + } + + if ( sca_aor_create_from_info( c_aor, c_uri.type, &user_portion, &domain_portion, &port_portion ) < 0 ) { + LM_ERR( "sca_create_canonical_aor: failed to create canonical AoR " + "user: <%.*s>, domain: <%.*s>", STR_FMT( &user_portion ), STR_FMT( &domain_portion )); + goto done; } rc = 1; -- 1.8.4

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sr-dev March 2014