Good to know that sngrep is truncating long headers when it displays them. Maybe it should be reported.
What I noticed with sngrep is that sometimes it does not display the traffic in the pcap file while ngrep shows the packets. I didn't get the time yet to dig in further and report back to the project -- mentioning it here, might be useful for other to know about.
Cheers, Daniel
On 02.07.21 00:11, Daniel W. Graham wrote:
Confirmed it was due to the sngrep copy. Thanks for mentioning it!
-dan
*From: *sr-users sr-users-bounces@lists.kamailio.org on behalf of Ben Kaufman bkaufman@nexvortex.com *Reply-To: *"Kamailio (SER) - Users Mailing List" sr-users@lists.kamailio.org *Date: *Thursday, July 1, 2021 at 12:49 PM *To: *"Kamailio (SER) - Users Mailing List" sr-users@lists.kamailio.org *Subject: *Re: [SR-Users] SECSIPID Identity Decode
Dump the header to your log file, and copy it from there. I don’t know what happens with the ncurses in sngrep, but I finally looked them side by side and …. “Hey! This one’s missing bytes!”
*Ben Kaufman*
/Sr. VoIP Engineer/
P:
E: bkaufman@nexvortex.com mailto:bkaufman@nexvortex.com
24 hour client support: 855.639.6300 tel:+18556396300
*From:* sr-users sr-users-bounces@lists.kamailio.org *On Behalf Of *Daniel W. Graham *Sent:* Thursday, July 1, 2021 10:25 AM *To:* Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org *Subject:* Re: [SR-Users] SECSIPID Identity Decode
Haha, yep :) I wondered if that was biting me.
-dan
On Jul 1, 2021, at 11:07 AM, Ben Kaufman <bkaufman@nexvortex.com <mailto:bkaufman@nexvortex.com>> wrote: I observed a similar behavior, but it was the result of my cutting and pasting the identity header from sngrep, which looks to have dropped a few bytes on the line break. Any chance that’s what you’re doing, too? *Ben Kaufman* /Sr. VoIP Engineer/ P: E: bkaufman@nexvortex.com <mailto:bkaufman@nexvortex.com> 24 hour client support: 855.639.6300 <tel:+18556396300> *From:* sr-users <sr-users-bounces@lists.kamailio.org <mailto:sr-users-bounces@lists.kamailio.org>> *On Behalf Of *Daniel W. Graham *Sent:* Wednesday, June 30, 2021 10:31 PM *To:* Kamailio (SER) - Users Mailing List <sr-users@lists.kamailio.org <mailto:sr-users@lists.kamailio.org>>; David Villasmil <david.villasmil.work@gmail.com <mailto:david.villasmil.work@gmail.com>>; Daniel-Constantin Mierla <miconda@gmail.com <mailto:miconda@gmail.com>> *Subject:* Re: [SR-Users] SECSIPID Identity Decode Here is an example, payload taken from Identity header. Identity was added with secsipid_add_identity Payload test: $var(test) = "eyJhdHRlc3QiOiJBIiwiZGVzdCI6eyJ0biI6I5ODkyODkyMjgwIl19LCJpYXQiOjE2MjUxMDk2MzQsIm9yaWciOnsidG4iOiI5ODk0MDA0MjMwIn0sIm9yaWdpZCI6IjNmYmE4NTg0LTRkNzMtNGU2NC04NDc5LTQ5MjU2ZGIyMWFhYSJ9"; xlogl("L_WARN", "$(var(test){s.decode.base64t})\n"); Result is: {"attest":"A","dest":{"tn":#���#��##�#002%���&�#027B#�#023c#S#023#003�#023sB�&�&�r#��'F�#�#���C#003#003C#3#002'��&�&�v�B#�Vc�s#006f"�&6#026#022�CVCB�#023c3#022�3#0066#�#026#6#026S�r' -dan *From: *sr-users <sr-users-bounces@lists.kamailio.org <mailto:sr-users-bounces@lists.kamailio.org>> on behalf of Daniel Graham <dan@cmsinter.net <mailto:dan@cmsinter.net>> *Reply-To: *"Kamailio (SER) - Users Mailing List" <sr-users@lists.kamailio.org <mailto:sr-users@lists.kamailio.org>> *Date: *Wednesday, June 30, 2021 at 5:32 PM *To: *David Villasmil <david.villasmil.work@gmail.com <mailto:david.villasmil.work@gmail.com>>, "miconda@gmail.com <mailto:miconda@gmail.com>" <miconda@gmail.com <mailto:miconda@gmail.com>>, "Kamailio (SER) - Users Mailing List" <sr-users@lists.kamailio.org <mailto:sr-users@lists.kamailio.org>> *Subject: *Re: [SR-Users] SECSIPID Identity Decode That’s the same way I am doing it, I was just trying to do a verification that the identity header/payload was correct before activating new changes. I will do further testing and share results. Just found it odd that the header would decode but payload wouldn’t. Daniel W. Graham, CTO CMSInter.net LLC DIRECT (989) 400-4230 INTERNET | TELEPHONE | MANAGED IT *From: *David Villasmil <david.villasmil.work@gmail.com <mailto:david.villasmil.work@gmail.com>> *Date: *Wednesday, June 30, 2021 at 4:06 PM *To: *"miconda@gmail.com <mailto:miconda@gmail.com>" <miconda@gmail.com <mailto:miconda@gmail.com>>, "Kamailio (SER) - Users Mailing List" <sr-users@lists.kamailio.org <mailto:sr-users@lists.kamailio.org>> *Cc: *Daniel Graham <dan@cmsinter.net <mailto:dan@cmsinter.net>> *Subject: *Re: [SR-Users] SECSIPID Identity Decode I DO IT WITH: # Break JWT $var(jwt1) = $(hdr(Identity){s.select,0,.}{s.decode.base64t}); $var(jwt2) = $(hdr(Identity){s.select,1,.}{s.decode.base64t}); Regards, David Villasmil email: david.villasmil.work@gmail.com <mailto:david.villasmil.work@gmail.com> phone: +34669448337 On Wed, Jun 30, 2021 at 8:48 PM Daniel-Constantin Mierla <miconda@gmail.com <mailto:miconda@gmail.com>> wrote: Hello, not familiar with python functions, have you tried with Kamailio transformation? https://www.kamailio.org/wiki/cookbooks/5.5.x/transformations#sdecodebase64url <https://www.kamailio.org/wiki/cookbooks/5.5.x/transformations#sdecodebase64url> Maybe you have to specify in Python that it is ASCII, I remember I had to do decoding when porting kamcli to work with Python3 -- had to change from using directly the variables received as parameter to a decoded value, something like: prefix = tprefix.encode("ascii", "ignore").decode() Also, if you can, share the identity header here to test with and see if can be reproduced. Cheers, Daniel On 30.06.21 21:14, Daniel W. Graham wrote: I am unable to base64url decode the json payload in identity header generated by secsipid. (Using python for test) decoded_payload = url64.decode(‘payload’) UnicodeDecodeError: 'utf-8' codec can't decode byte 0xc2 in position 27: invalid continuation byte Header decodes fine this way but not payload. Is this an issue with the payload encoding? Kamailio 5.5 Daniel W. Graham, CTO CMSInter.net LLC DIRECT (989) 400-4230 INTERNET | TELEPHONE | MANAGED IT __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions * sr-users@lists.kamailio.org <mailto:sr-users@lists.kamailio.org> Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe: * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users <https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users> -- Daniel-Constantin Mierla -- www.asipto.com <http://www.asipto.com> www.twitter.com/miconda <http://www.twitter.com/miconda> -- www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda> __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions * sr-users@lists.kamailio.org <mailto:sr-users@lists.kamailio.org> Important: keep the mailing list in the recipients, do not reply only to the sender! 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