[SR-Users] userblacklist use avp for check_blacklist
Daniel-Constantin Mierla
miconda at gmail.com
Mon Jun 27 13:08:44 CEST 2016
Can you try with the master branch or backport the next commit?
-
https://github.com/kamailio/kamailio/commit/5fd2c91f512b7311f11c76023da45758fb8c4365
If all ok, then I push the backported patch to stable branches.
Cheers,
Daniel
On 27/06/16 11:57, Daniel-Constantin Mierla wrote:
> The spec is null, so the crash is obvious. I have to look at the code to
> see why it expect to be a spec there, while it can be a static string.
>
> Cheers,
> Daniel
>
>
> On 27/06/16 10:57, Jan Hazenberg wrote:
>> Daniel,
>>
>> Here the requested gdb output:
>>
>> (gdb) frame 1
>> #1 0x00007f22fd252ece in check_user_blacklist_fixup
>> (param=0x7f23061cdd88, param_no=1) at userblacklist.c:213
>> 213 if(str2int(&s, (unsigned
>> int*)&model->spec->pvp.pvn.u.isname.name.n) != 0) {
>> (gdb) info locals
>> model = 0x7f23061c9400
>> s = {s = 0x7f23061ce0b8 "blacklist", len = 9}
>> __FUNCTION__ = "check_user_blacklist_fixup"
>> (gdb) p *model
>> $1 = {text = {s = 0x7f23061ce0b8 "blacklist", len = 9}, spec = 0x0,
>> next = 0x0}
>> (gdb) p *model->spec
>> Cannot access memory at address 0x0
>> (gdb)
>>
>>
>> Jan
>>
>> Daniel-Constantin Mierla schreef op 2016-06-23 19:46:
>>> Can you get the output of following commands in gdb:
>>>
>>> frame 1
>>>
>>> info locals
>>>
>>> p *model
>>>
>>> p *model->spec
>>>
>>> Cheers,
>>> Daniel
>>>
>>>
>>> On 23/06/16 14:45, Jan Hazenberg wrote:
>>>> Daniel,
>>>>
>>>> Here the output of the bt command. This was generated with kamailio
>>>> 4.4.1
>>>>
>>>> Core was generated by `/usr/local/sbin/kamailio -P
>>>> /var/run/kamailio.pid -m 768 -M 16 -u kamailio -g k'.
>>>> Program terminated with signal 11, Segmentation fault.
>>>> #0 0x00007f22fd2526fb in str2int (_s=0x7ffc529b73c0, _r=0x30) at
>>>> ../../parser/../parser/../ut.h:643
>>>> 643 *_r = 0;
>>>> Missing separate debuginfos, use: debuginfo-install
>>>> glibc-2.12-1.166.el6_7.7.x86_64 keyutils-libs-1.4-5.el6.x86_64
>>>> krb5-libs-1.10.3-42z1.el6_7.x86_64 libcom_err-1.41.12-22.el6.x86_64
>>>> libselinux-2.0.94-5.8.el6.x86_64 libxml2-2.7.6-20.el6_7.1.x86_64
>>>> mysql-libs-5.1.73-5.el6_6.x86_64
>>>> nss-softokn-freebl-3.14.3-23.el6_7.x86_64
>>>> openssl-1.0.1e-42.el6_7.4.x86_64 pcre-7.8-7.el6.x86_64
>>>> zlib-1.2.3-29.el6.x86_64
>>>> (gdb) bt
>>>> #0 0x00007f22fd2526fb in str2int (_s=0x7ffc529b73c0, _r=0x30) at
>>>> ../../parser/../parser/../ut.h:643
>>>> #1 0x00007f22fd252ece in check_user_blacklist_fixup
>>>> (param=0x7f23061cdd88, param_no=1) at userblacklist.c:213
>>>> #2 0x0000000000531e49 in fix_actions (a=0x7f23061cdd28) at route.c:919
>>>> #3 0x00000000005613b7 in fix_rval (rv=0x7f23061cfa68) at rvalue.c:2876
>>>> #4 0x000000000057323e in fix_rval_expr (p=0x7f23061cfa60) at
>>>> rvalue.c:3797
>>>> #5 0x0000000000573253 in fix_rval_expr (p=0x7f23061cf350) at
>>>> rvalue.c:3808
>>>> #6 0x000000000052da79 in fix_actions (a=0x7f23061ce7f0) at route.c:706
>>>> #7 0x000000000053da17 in fix_rl (rt=0xac8640) at route.c:2088
>>>> #8 0x000000000053da4d in fix_rls () at route.c:2104
>>>> #9 0x00000000004b83ea in main (argc=11, argv=0x7ffc529b8158) at
>>>> main.c:2605
>>>> (gdb)
>>>>
>>>>
>>>> Thanks,
>>>>
>>>> Jan
>>>>
>>>> Daniel-Constantin Mierla schreef op 2016-06-23 12:53:
>>>>> Hello,
>>>>>
>>>>> send the all the output of 'bt' command inside gdb. It will give the
>>>>> full execution stack, likely the problem is not in frame 0, but in a
>>>>> previous one.
>>>>>
>>>>> Cheers,
>>>>> Daniel
>>>>>
>>>>>
>>>>> On 23/06/16 12:47, Jan Hazenberg wrote:
>>>>>> I just tried to use the check_user_blacklist function but then
>>>>>> kamailio crashed when i start it. I'm using the following code:
>>>>>>
>>>>>>
>>>>>> if (!check_user_blacklist("blacklist", "$avp(from_domain)",
>>>>>> "$(avp(ruri_number){s.substr,1,0})")) {
>>>>>> xlog("L_ALERT", "ALERT: $rU is blacklisted, rejecting
>>>>>> call - IP=$si PORT=$sp R=$ru ID=$ci FU=$fu M=$rm UA=$ua\n");
>>>>>> sl_send_reply("403", "Forbidden");
>>>>>> exit;
>>>>>> }
>>>>>>
>>>>>> This is the GDB output:
>>>>>>
>>>>>> Core was generated by `/usr/local/sbin/kamailio -P
>>>>>> /var/run/kamailio.pid -m 768 -M 16 -u kamailio -g k'.
>>>>>> Program terminated with signal 11, Segmentation fault.
>>>>>> #0 0x00007fdf4b2be6fb in str2int (_s=0x7fff312b7bd0, _r=0x30) at
>>>>>> ../../parser/../parser/../ut.h:643
>>>>>> 643 *_r = 0;
>>>>>>
>>>>>>
>>>>>> I have kamailio 4.4.0 installed, just tested with 4.4.1 and the
>>>>>> result
>>>>>> is the same.
>>>>>>
>>>>>> Thanks,
>>>>>>
>>>>>> Jan
>>>>>>
>>>>>> Jan Hazenberg schreef op 2016-06-23 09:47:
>>>>>>> Hello,
>>>>>>>
>>>>>>> I'm trying to use the userblacklist module to implement a global
>>>>>>> blacklist. I have a few questions about the module.
>>>>>>>
>>>>>>> Is it possible to use a avp for the check_blacklist function? If i'm
>>>>>>> correct it will only parse the request URI, but i'm rewriting the
>>>>>>> URI
>>>>>>> in a branch route to allow different formats to different
>>>>>>> destinations. Or is this only possible with the check_user_blacklist
>>>>>>> function?
>>>>>>>
>>>>>>> I also have a issue with numbers in E164 format with a leading +. I
>>>>>>> tried to escape this with a \ in the database but it will not
>>>>>>> load the
>>>>>>> entry's when i use the + in front of the number. Is the +
>>>>>>> supported by
>>>>>>> this module or should i strip it before the function and add it
>>>>>>> again
>>>>>>> afterwards?
>>>>>>>
>>>>>>> Thanks,
>>>>>>>
>>>>>>> Jan
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> _______________________________________________
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--
Daniel-Constantin Mierla
http://www.asipto.com - http://www.kamailio.org
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
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