[Users] Re: get_redirects("*"), serialize_branches(0), next_branches() not working for me

Mon Jun 5 11:18:50 CEST 2006

Hi Greg,

message "DEBUG:next_branches: no AVPs -- we are done!" is generated by
next_branches() function if no AVP is found to get a new branch.

in debug mode you may see what branches are loaded into AVPS by 
serialize_branches(). Also you may use avp_print() to see what are the 
current AVPs.

regards,
bogdan

Greg Fausak wrote:

> Reply to my own message!
>
> I've been working on this all weekend.
> Had an issue with a firewall which was blocking redirect
> packets, that cleared up a bunch.
>
> Now, I have the get_redirects("*") working, serialize_branches(0) is
> working (kinda, it says it has
> nothing to do because all data has the same
> q value), and I see a debug message when I call next_branches() which 
> says
> DEBUG:next_branches: no AVPs -- we are done!
>
> My ser.cfg file is below. How do I get rid of 'no AVPs' error? I 
> thought the
> domain modparam would activate them?
>
> -g
> # 1 "config.pre"
> # 32 "config.pre"
> # 1 "/usr/local/etc/ser/include/opensererror.pre" 1
> # 33 "config.pre" 2
> # 140 "config.pre"
> mpath="/usr/local/lib/openser/modules"
>
> loadmodule "sl.so"
> loadmodule "tm.so"
> loadmodule "rr.so"
> loadmodule "maxfwd.so"
> loadmodule "textops.so"
> loadmodule "xlog.so"
> loadmodule "dbtext.so"
> loadmodule "domain.so"
> loadmodule "uac_redirect.so"
>
>
> log_stderror=no
> log_facility=LOG_LOCAL5
> listen=12.46.104.47
> port=5060
> children=4
> disable_tcp=yes
> dns_try_ipv6=no
> server_signature=no
> sip_warning=0
>
> alias="redirect.node-1.com"
> alias="proxy.redirect.node-1.com"
> alias="12.46.104.47"
>
> fifo="/tmp/ser_fifo/proxy"
>
> modparam("tm","fr_inv_timer",180)
> modparam("domain", "db_url", "dbtext:///var/openserdb")
>
>
>
>
>
>
>
> route
> {
>
>
>
>
> if (!mf_process_maxfwd_header("13")) {
> xlog("L_WARN","redirect.node-1.com-483: time_t=$Ts ^LINE=184
> ^FILE=config.pre ^call_id=$ci ^cseq=$cs ^contact=$ct ^from=$fu
> ^fromtag=$ft ^to=$tu ^totag=$tt ^method=$rm ^ruri=$ru
> ^messageid=$mi^remark=Too many hops"); sl_send_reply("483", "Too many
> hops"); return; };
>
> xlog("L_WARN","redirect.node-1.com-REDIRECTOR: time_t=$Ts ^LINE=186
> ^FILE=config.pre ^call_id=$ci ^cseq=$cs ^contact=$ct ^from=$fu
> ^fromtag=$ft ^to=$tu ^totag=$tt ^method=$rm ^ruri=$ru
> ^messageid=$mi^remark=Starting");
>
> if(loose_route()) { xlog("L_WARN","redirect.node-1.com-LOOSE:
> time_t=$Ts ^LINE=188 ^FILE=config.pre ^call_id=$ci ^cseq=$cs
> ^contact=$ct ^from=$fu ^fromtag=$ft ^to=$tu ^totag=$tt ^method=$rm
> ^ruri=$ru ^messageid=$mi^remark=Doing it"); record_route(); t_relay();
> return; };
>
> xlog("L_WARN","redirect.node-1.com-REDIRECTOR: time_t=$Ts ^LINE=190
> ^FILE=config.pre ^call_id=$ci ^cseq=$cs ^contact=$ct ^from=$fu
> ^fromtag=$ft ^to=$tu ^totag=$tt ^method=$rm ^ruri=$ru
> ^messageid=$mi^remark=Starting");
>
> if(!uri==myself) { xlog("L_WARN","redirect.node-1.com-NOTUS:
> time_t=$Ts ^LINE=192 ^FILE=config.pre ^call_id=$ci ^cseq=$cs
> ^contact=$ct ^from=$fu ^fromtag=$ft ^to=$tu ^totag=$tt ^method=$rm
> ^ruri=$ru ^messageid=$mi^remark=forward packet"); record_route();
> t_relay(); return; };
>
> xlog("L_WARN","redirect.node-1.com-REDIRECTOR: time_t=$Ts ^LINE=194
> ^FILE=config.pre ^call_id=$ci ^cseq=$cs ^contact=$ct ^from=$fu
> ^fromtag=$ft ^to=$tu ^totag=$tt ^method=$rm ^ruri=$ru
> ^messageid=$mi^remark=Starting");
>
>
>
>
> if(src_ip==12.46.104.62)
> {
> � xlog("L_INFO","redirect.node-1.com-OUTBOUNDCALL: time_t=$Ts
> ^LINE=201 ^FILE=config.pre ^call_id=$ci ^cseq=$cs ^contact=$ct
> ^from=$fu ^fromtag=$ft ^to=$tu ^totag=$tt ^method=$rm ^ruri=$ru
> ^messageid=$mi^remark=OUT");
> � if(is_method("INVITE"))
> � {
> �� xlog("L_WARN","redirect.node-1.com-OUTBOUNDCALL: time_t=$Ts
> ^LINE=204 ^FILE=config.pre ^call_id=$ci ^cseq=$cs ^contact=$ct
> ^from=$fu ^fromtag=$ft ^to=$tu ^totag=$tt ^method=$rm ^ruri=$ru
> ^messageid=$mi^remark=OUT");
>
> �� t_on_failure("3");
>
> �� record_route();
>
> �� rewritehostport("198.212.169.6:5060");
>
> �� if(!t_relay())
> �� {
> � � sl_reply_error();
> �� }
> �� return;
> � }
> }
>
>
>
>
>
> xlog("L_WARN","redirect.node-1.com-404: time_t=$Ts ^LINE=224
> ^FILE=config.pre ^call_id=$ci ^cseq=$cs ^contact=$ct ^from=$fu
> ^fromtag=$ft ^to=$tu ^totag=$tt ^method=$rm ^ruri=$ru
> ^messageid=$mi^remark=no route found"); sl_send_reply("404", "no route
> found"); return;
> }
> # 235 "config.pre"
> failure_route[3]
> {
> xlog("L_WARN","redirect.node-1.com-FAILUREROUTE: time_t=$Ts ^LINE=237
> ^FILE=config.pre ^call_id=$ci ^cseq=$cs ^contact=$ct ^from=$fu
> ^fromtag=$ft ^to=$tu ^totag=$tt ^method=$rm ^ruri=$ru
> ^messageid=$mi^remark=here we are");
>
> if(t_check_status("3[0-9][0-9]"))
> {
> � xlog("L_WARN","redirect.node-1.com-FAILUREROUTE: time_t=$Ts
> ^LINE=241 ^FILE=config.pre ^call_id=$ci ^cseq=$cs ^contact=$ct
> ^from=$fu ^fromtag=$ft ^to=$tu ^totag=$tt ^method=$rm ^ruri=$ru
> ^messageid=$mi^remark=status is 3xx");
> � get_redirects("*");
> � serialize_branches(0);
> }
> next_branches();
> � xlog("L_WARN","redirect.node-1.com-FAILUREROUTE: time_t=$Ts
> ^LINE=246 ^FILE=config.pre ^call_id=$ci ^cseq=$cs ^contact=$ct
> ^from=$fu ^fromtag=$ft ^to=$tu ^totag=$tt ^method=$rm ^ruri=$ru
> ^messageid=$mi^remark=next branch");
> � t_on_failure("3");
> � t_relay();
> � return;
> xlog("L_WARN","redirect.node-1.com-FAILUREROUTE: time_t=$Ts ^LINE=250
> ^FILE=config.pre ^call_id=$ci ^cseq=$cs ^contact=$ct ^from=$fu
> ^fromtag=$ft ^to=$tu ^totag=$tt ^method=$rm ^ruri=$ru
> ^messageid=$mi^remark=no branches left");
> t_reply("404", "No branches left");
> }
>
>
>
> On 6/3/06, Greg Fausak <lgfausak at gmail.com> wrote:
>
>> I'm trying to play around with the current cvs head but can't get it to
>> work. I wonder if somebody could give me a hint!
>>
>>
>> I built a redirect server:
>> It basically does:
>>
>> rewritehost("ab5350.node-1.com");
>> sl_send_reply("302", "Redirect");
>>
>> I forward to the redirect server setting up a failure block:
>>
>> if(is_method("INVITE"))
>> {
>> _QLOG(L_INFO, OUTBOUNDCALL, OUT);
>>
>> t_on_failure("3");
>>
>> record_route();
>> setflag(1);
>> setflag(2);
>>
>> rewritehostport(_QSTR
>> (REDIRECTOBGATEWAYIP:REDIRECTOBGATEWAYPORT));
>>
>> if(!t_relay())
>> {
>> sl_reply_error();
>> }
>> }
>>
>> The response below comes back from my redirect server:
>>
>> SIP/2.0 302 Redirect
>> Via: SIP/2.0/UDP 12.46.104.47;branch=z9hG4bKa86.09801851.0
>> Via: SIP/2.0/UDP 12.46.104.62:5061;branch=z9hG4bKa86.191c2c81.0
>> Via: SIP/2.0/UDP 12.46.104.59;branch=z9hG4bKa86.dafc0771.0
>> Via: SIP/2.0/UDP 71.252.176.37:5060;branch=z9hG4bK-d0702751
>> From: +19722200434 <sip:+19722200434 at var-2.com>;tag=3a553a2b9373c699
>> To: <sip:2143357976 at var-2.com>;tag=5531b0101f56e37a4889ece4b0eb40fa.417f
>> Call-ID: f27483a5-50532031 at 71.252.176.37
>> CSeq: 101 INVITE
>> Contact: sip:+12143357976 at ab5350.node-1.com:5060
>> Content-Length: 0
>>
>> My failure_route block picks up the routing:
>>
>> failure_route[3]
>> {
>> _QLOG(L_WARN, FAILUREROUTE, here we are);
>>
>> if(status =~ "3[0-9][0-9]")
>> {
>> _QLOG(L_WARN, FAILUREROUTE, status is 3xx);
>> get_redirects("*");
>> serialize_branches(0);
>> }
>> if(next_branches())
>> {
>> _QLOG(L_WARN, FAILUREROUTE, next branch);
>> t_on_failure("3");
>> t_relay();
>> }
>> _QLOG(L_WARN, FAILUREROUTE, no branches left);
>> if(!t_reply("404", "Not Found"))
>> {
>> _QLOG(L_WARN, FAILUREROUTE, Error);
>> }
>> }
>>
>> My syslog shows QLOG messages.
>> I see the 'status is 3xx' message, which shows the
>> next command to be get_redirects("*");
>>
>> The next output I see in my syslog is 'no branches left', which
>> indicates that the
>> serialize_branches(0) and next_branches() aren't working as I expected.
>>
>> I've also tried getting rid of the serialize_branches and 
>> next_branches and just
>> doing a t_relay() after the get_redirects(), that doesn't work either.
>>
>> Since I'm trying to simulate the redirect server, and the redirect
>> client, I'm sure I
>> got one of them wrong. Can somebody give me a hint?
>>
>> Thanks!
>>
>> -g
>>
>>
>>
>> -- 
>> Greg Fausak
>> greg at thursday.com
>>
>
>
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