Re: [SR-Users] Fwd: Stack smash error when using auth_ephemeral with KEMI

Hi Daniel, This is from a new core dump, as I didn't have the core file of the previous core dump anymore. Here the output of the gdb commands for 5.2 nightly: https://pastebin.com/mN184dLK Regards, Grant On Mon, May 13, 2019 at 10:33 AM Daniel-Constantin Mierla <miconda(a)gmail.com> wrote: > > Hello, > > can you get from the core of 5.2 nightly > (https://pastebin.com/XHsFAiJp), the output for following gdb commands: > > bt full > > frame 5 > > list > > info locals > > p *spassword > > Cheers, > Daniel > > On 13.05.19 09:57, Grant Bagdasarian wrote: > > Hi Daniel, > > > > No, both result in the stack smash error. > > I've tried with the following deb packages. They all lead to the same issue. > > - 5.2.1 stable > > - 5.2.2 stable > > - 5.2. nightly > > - devel nightly > > > > Core dump for 5.2.1: https://pastebin.com/tTUUk4YH > > Core dump for 5.2.2 nightly: https://pastebin.com/XHsFAiJp > > > > I'm running Kamailio inside a Docker container (using the official > > Docker image: kamailio/kamailio from Docker Hub). > > > > Hope this is clear. > > > > Regards, > > > > Grant > > > > On Mon, May 13, 2019 at 9:45 AM Daniel-Constantin Mierla > > <miconda(a)gmail.com> wrote: > >> Hi Grant, > >> > >> for clarification -- using the dedicated KEMI function is working fine? Only when using x.modf() is crashing? > >> > >> Cheers, > >> Daniel > >> > >> On 12.05.19 10:23, Grant Bagdasarian wrote: > >> > >> Hi Daniel, > >> > >> Yes, I’ve only been using the dedicated KEMI functions. This was just a simple try to see what would happen. > >> Anyways, thanks for the tip! > >> > >> Regards, > >> Grant > >> > >> On Sun, 12 May 2019 at 09:42, Daniel-Constantin Mierla <miconda(a)gmail.com> wrote: > >>> Hello, > >>> > >>> have you tried the dedicated KEMI functions? > >>> > >>> - > >>> http://kamailio.org/docs/tutorials/devel/kamailio-kemi-framework/modules/#a… > >>> > >>> KSR.x.modf() must be avoided as much as possible, because it is an > >>> workaround which can also lead to memory leaks if the kamailio.cfg > >>> functions don't have a free fixup function. > >>> > >>> Cheers, > >>> Daniel > >>> > >>> On 12.05.19 00:16, Grant Bagdasarian wrote: > >>>> Hi Daniel, > >>>> > >>>> FYI, the following also ends up in the stack smash error: > >>>> _.x.modf("autheph_authenticate", "1576734089:grant", "1234") > >>>> > >>>> I also tried with the devel nightly deb package, which also resulted > >>>> in the same error. > >>>> I'm unsure if this error also happens when using the native Kamailio > >>>> script, as my routing logic is built using the Python3 module. > >>>> Will give the native script a try soon, and report back. > >>>> > >>>> Regards, > >>>> > >>>> Grant > >>>> > >>>> On Tue, May 7, 2019 at 11:08 PM Grant Bagdasarian > >>>> <grantbagdasarian(a)gmail.com> wrote: > >>>>> Hi Daniel, > >>>>> > >>>>> I used the latest Docker image for Kamailio 5.2.2 and then changed the > >>>>> apt kamailio.list file to contain the nightly build and > >>>>> updated/upgraded kamailio. Hope this is enough to target the latest > >>>>> git 5.2 version. > >>>>> If not, please let me know. > >>>>> > >>>>> deb http://deb.kamailio.org/kamailio52-nightly stretch main > >>>>> deb-src http://deb.kamailio.org/kamailio52-nightly stretch main > >>>>> > >>>>> https://pastebin.com/XHsFAiJp > >>>>> > >>>>> It still ends in a stacksmash error. > >>>>> > >>>>> Regards, > >>>>> > >>>>> Grant > >>>>> > >>>>> On Fri, May 3, 2019 at 11:56 AM Daniel-Constantin Mierla > >>>>> <miconda(a)gmail.com> wrote: > >>>>>> Hello, > >>>>>> > >>>>>> can you try with latest git branch 5.2? I pushed a commit that > >>>>>> eventually fixes it. > >>>>>> > >>>>>> Cheers, > >>>>>> Daniel > >>>>>> > >>>>>> On 02.05.19 23:54, Grant Bagdasarian wrote: > >>>>>>> Hi Daniel, > >>>>>>> > >>>>>>> See pastebin url below for the backtrace. > >>>>>>> https://pastebin.com/tTUUk4YH > >>>>>>> > >>>>>>> Hopefully I did it the right way. Please let me know if you need anything else. > >>>>>>> FYI, Kamailio is running inside of a docker container. > >>>>>>> > >>>>>>> version: kamailio 5.2.1 (x86_64/linux) > >>>>>>> flags: STATS: Off, USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, > >>>>>>> USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM, > >>>>>>> SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, > >>>>>>> USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, > >>>>>>> USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES > >>>>>>> ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144 MAX_URI_SIZE > >>>>>>> 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB > >>>>>>> poll method support: poll, epoll_lt, epoll_et, sigio_rt, select. > >>>>>>> id: unknown > >>>>>>> compiled with gcc 6.3.0 > >>>>>>> > >>>>>>> I can easily replicate this, but to be sure I've saved the core file > >>>>>>> locally on my machine. > >>>>>>> > >>>>>>> Regards, > >>>>>>> > >>>>>>> Grant > >>>>>>> > >>>>>>> On Thu, May 2, 2019 at 10:05 AM Daniel-Constantin Mierla > >>>>>>> <miconda(a)gmail.com> wrote: > >>>>>>>> Hello, > >>>>>>>> > >>>>>>>> can you get a core file for this case? > >>>>>>>> > >>>>>>>> Set `ulimit -c unlimited` before starting Kamailio as root and run again. > >>>>>>>> > >>>>>>>> Once you have the core file, get the backtrace with gdb. > >>>>>>>> > >>>>>>>> Cheers, > >>>>>>>> Daniel > >>>>>>>> > >>>>>>>> On 01.05.19 20:26, Grant Bagdasarian wrote: > >>>>>>>>> Hello, > >>>>>>>>> > >>>>>>>>> I was trying out the auth_ephemeral module inside the xhttp > >>>>>>>>> event_route in Python KEMI, and discovered a possible bug. > >>>>>>>>> > >>>>>>>>> https://pastebin.com/4Ghumfis > >>>>>>>>> > >>>>>>>>> The following will result in the stack smash error. Whenever I leave > >>>>>>>>> out the unixtimestamp the > >>>>>>>>> module will complain about not being able to convert to an int, which > >>>>>>>>> make sense, but doesn't lead to a stack smash error and a complete > >>>>>>>>> crash of Kamailio. > >>>>>>>>> > >>>>>>>>> KSR.auth_ephemeral.autheph_authenticate("1576734089:grant", "1234"). > >>>>>>>>> > >>>>>>>>> According to the documentation this module can only be used in > >>>>>>>>> REQUEST_ROUTE, but I found a presentation online which also used this > >>>>>>>>> module and that particular function in event_route, which is what I > >>>>>>>>> need for WebSocket authentication. > >>>>>>>>> > >>>>>>>>> Hope this helps. Please let me know if you need more information. > >>>>>>>>> > >>>>>>>>> Regards, > >>>>>>>>> > >>>>>>>>> Grant > >>>>>>>>> > >>>>>>>>> _______________________________________________ > >>>>>>>>> Kamailio (SER) - Users Mailing List > >>>>>>>>> sr-users(a)lists.kamailio.org > >>>>>>>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users > >>>>>>>> -- > >>>>>>>> Daniel-Constantin Mierla -- www.asipto.com > >>>>>>>> www.twitter.com/miconda -- www.linkedin.com/in/miconda > >>>>>>>> Kamailio World Conference - May 6-8, 2019 -- www.kamailioworld.com > >>>>>>>> > >>>>>>> _______________________________________________ > >>>>>>> Kamailio (SER) - Users Mailing List > >>>>>>> sr-users(a)lists.kamailio.org > >>>>>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users > >>>>>> -- > >>>>>> Daniel-Constantin Mierla -- www.asipto.com > >>>>>> www.twitter.com/miconda -- www.linkedin.com/in/miconda > >>>>>> Kamailio World Conference - May 6-8, 2019 -- www.kamailioworld.com > >>>>>> > >>> -- > >>> Daniel-Constantin Mierla -- www.asipto.com > >>> www.twitter.com/miconda -- www.linkedin.com/in/miconda > >>> > >> -- > >> Daniel-Constantin Mierla -- www.asipto.com > >> www.twitter.com/miconda -- www.linkedin.com/in/miconda > > -- > Daniel-Constantin Mierla -- www.asipto.com > www.twitter.com/miconda -- www.linkedin.com/in/miconda >