[OpenSIPS-Users] B2BUA/Top Hiding in 1.7 trunk

[Vlad Paiu]

Hello,

As far as I know, 1.7 hasn't affected the B2B modules in a script-wise 
way, so the example scripts available on opensips.org should be up to date.
I see from your lvl3 debug that the core was not generated. Could you 
please start OpenSIPS with
     -w VALID_DIRECTORY
and make sure to run
     ulimit -c unlimited
so OpenSIPS can succesfully dump a core ?

Please return with a valid core dump so we can further investigate this 
issue.

Regards,

Vlad Paiu
OpenSIPS Developer


On 10/26/2011 09:48 PM, Jock McKechnie wrote:
> Has something broken B2B/top hiding in trunk or is the config sample
> presented on the Tutorials page not actually current for v1.7? I've
> taken the sample and changed it to force the calls to a specific host,
> implement top hiding, and I've also changed it to use db_mode 0 so I
> don't need the DB back-end, but elsewise it's complete, however I get
> debugging errors about "failed to create new b2b server instance" and,
> even more entertainingly, when the call I'm trying to build tears down
> OpenSIP shuts itself down.
>
> Config and lv3 debug as follows. Is it v1.7 trunk, or am I missing
> something that the changes above have fundamentally broken in the
> tutorial sample?
>
> Thank you!!
>   - Jock
>
> [OpenSIP is up and running here&  then receives a call]
> Oct 21 09:33:50 mediab2bua1 /usr/sbin/opensips[2635]:
> INFO:core:buf_init: initializing...
> Oct 21 09:33:50 mediab2bua1 /usr/sbin/opensips[2635]: b2b_reply
> (B2B.58.6764724)
> Oct 21 09:33:50 mediab2bua1 /usr/sbin/opensips[2636]:
> ERROR:b2b_logic:create_top_hiding_entities: failed to create new b2b
> server instance
> Oct 21 09:33:51 mediab2bua1 /usr/sbin/opensips[2637]:
> ERROR:b2b_logic:create_top_hiding_entities: failed to create new b2b
> server instance
> Oct 21 09:33:51 mediab2bua1 /usr/sbin/opensips[2638]:
> ERROR:b2b_entities:b2b_send_reply: Tm transaction not saved!
> Oct 21 09:33:51 mediab2bua1 /usr/sbin/opensips[2630]:
> INFO:core:handle_sigs: child process 2638 exited by a signal 11
> Oct 21 09:33:51 mediab2bua1 /usr/sbin/opensips[2630]:
> INFO:core:handle_sigs: core was not generated
> Oct 21 09:33:51 mediab2bua1 /usr/sbin/opensips[2630]:
> INFO:core:handle_sigs: terminating due to SIGCHLD
> Oct 21 09:33:51 mediab2bua1 /usr/sbin/opensips[2641]:
> INFO:core:sig_usr: signal 15 received
>
>
>
> # Debugging mode:
> debug=3
> memlog= 6
> fork=yes
> auto_aliases=no
> log_stderror=no
>
> disable_dns_blacklist=yes
>
> listen=192.168.9.9:5060
> # alias=OSIPS_REALM
> #port=OSIPS_PORT
>
> sip_warning=0
> #server_header="SRV_SIGNATURE"
> #user_agent_header="PP_USER_AGENT"
>
> #mhomed=yes
> #memlog=2
> check_via=no
> dns=off
> rev_dns=off
> children=8
> disable_tcp=yes
> log_facility=LOG_LOCAL7
> # for more info: opensips -h
>
> # ------------------ module loading ----------------------------------
>
> mpath="/usr/lib/opensips/modules"
>
> loadmodule "textops.so"
> loadmodule "maxfwd.so"
> loadmodule "rr.so"
> loadmodule "sl.so"
> loadmodule "tm.so"
> loadmodule "signaling.so"
> loadmodule "b2b_entities.so"
> loadmodule "b2b_logic.so"
> loadmodule "usrloc.so"
> loadmodule "registrar.so"
> loadmodule "mi_fifo.so"
> loadmodule "dialog.so"
>
>
> # ----------------- setting module-specific parameters ---------------
> modparam("mi_fifo", "fifo_name", "/tmp/opensips_fifo")
>
>
> modparam("tm", "pass_provisional_replies", 1)
>
> modparam("b2b_logic", "db_mode", 0)
> modparam("b2b_entities", "db_mode", 0)
> modparam("b2b_entities", "script_req_route", "b2b_request")
> modparam("b2b_entities", "script_reply_route", "b2b_reply")
>
> route[b2b_request] {
>    xlog("b2b_request ($ci)\n");
> }
>
>
> route[b2b_reply] {
>    xlog("b2b_reply ($ci)\n");
> }
>
>
> route {
>    if (!mf_process_maxfwd_header("10")) {
>      sl_send_reply("483","Too Many Hops");
>      exit;
>    };
>
>    if (msg:len>= 2380 ) {
>      sl_send_reply("513", "Message too big");
>      exit;
>    };
>
>    if (!method=="REGISTER")
>      record_route();
>
>    # subsequent messages withing a dialog should take the
>    # path determined by record-routing
>    if (loose_route()) {
>      # mark routing logic in request
>      append_hf("P-hint: rr-enforced\r\n");
>      route(1);
>    };
>
>    if(is_method("INVITE")&&  !(src_ip == "192.168.9.9"&&  src_port
> ==5060)) /* skip Invite messages generated by the B2BUA*/
>    {
>      # DO NOT call t_newtran() on this request ->  it will result in the
> transaction never being deleted
>      rewritehost("192.168.10.10");
>      b2b_init_request("top hiding");
>      exit; # do not forward this request, another one will be generated
>    };
>
>    route(1);
> }
>
>
> route[1] {
>    # send it out now; use stateful forwarding as it works reliably
>    # even for UDP2TCP
>
>    if (!t_relay()) {
>      sl_reply_error();
>    };
>    exit;
> }
>
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