This is a text-only version of the following page on https://raymii.org: --- Title : connman operstate list Author : Remy van Elst Date : 25-06-2019 URL : https://raymii.org/s/snippets/connman_operstate_list.html Format : Markdown/HTML --- Recently I was debugging connection issues with a system that uses connman as it's network management software. In the log it was visible that the connection went away and came back, logged with ' `operstate $number $state`. I couldn't easily find an overview of all the possible states, but since it's open source we can take a look at the code to find out. Publishing it here for future reference.

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### Log The relevant parts of the logging look like this: Jun 22 19:41:33 hostname connmand[8080]: eth1 {newlink} index 5 operstate 6 Jun 23 16:34:07 hostname connmand[26069]: eth1 {update} flags 36866 Jun 23 16:34:07 hostname connmand[26069]: eth1 {newlink} index 5 operstate 2 Jun 23 16:34:08 hostname connmand[26069]: eth1 {newlink} index 5 operstate 6 Jun 23 16:34:08 hostname connmand[26069]: eth1 {update} flags 36867 Jun 23 16:34:08 hostname connmand[26069]: eth1 {newlink} index 5 operstate 2 Jun 23 16:34:10 hostname connmand[26069]: eth1 {newlink} index 5 operstate 6 The different manpages and online search results didn't give me the information I was looking for, so I cloned the repository and turned to trusty old `grep`. git clone https://git.kernel.org/pub/scm/network/connman/connman.git/ cd connman Searching recursively: grep -iInHr "operstate" * The first hit was what I was looking for: src/rtnl.c:344:static const char *operstate2str(unsigned char operstate) src/rtnl.c:346: switch (operstate) { You can view the code [online via gitweb][1], but here's the list, I've added the comments with the numbers per state: static const char *operstate2str(unsigned char operstate) { switch (operstate) { case IF_OPER_UNKNOWN: //0 return "UNKNOWN"; case IF_OPER_NOTPRESENT: //1 return "NOT-PRESENT"; case IF_OPER_DOWN: //2 return "DOWN"; case IF_OPER_LOWERLAYERDOWN: //3 return "LOWER-LAYER-DOWN"; case IF_OPER_TESTING: //4 return "TESTING"; case IF_OPER_DORMANT: //5 return "DORMANT"; case IF_OPER_UP: //6 return "UP"; } return ""; } This info is what I was looking for to use in further automated log analysis. [1]: https://git.kernel.org/pub/scm/network/connman/connman.git/tree/src/rtnl.c#n344 --- License: All the text on this website is free as in freedom unless stated otherwise. This means you can use it in any way you want, you can copy it, change it the way you like and republish it, as long as you release the (modified) content under the same license to give others the same freedoms you've got and place my name and a link to this site with the article as source. This site uses Google Analytics for statistics and Google Adwords for advertisements. You are tracked and Google knows everything about you. Use an adblocker like ublock-origin if you don't want it. All the code on this website is licensed under the GNU GPL v3 license unless already licensed under a license which does not allows this form of licensing or if another license is stated on that page / in that software: This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . Just to be clear, the information on this website is for meant for educational purposes and you use it at your own risk. I do not take responsibility if you screw something up. Use common sense, do not 'rm -rf /' as root for example. If you have any questions then do not hesitate to contact me. See https://raymii.org/s/static/About.html for details.