Yes, I'm interested to know if those parameters can be set, or if I can just use the scripts in the if-*.d directories instead of the build-in call BB is making to the DHCP (to prevent duplicate calls to that server - one from BB, one from my scripts).
Thanks, Dave On 9/20/16, Martin Townsend <mtownsend1...@gmail.com> wrote: > Hi Dave, > > On Tue, Sep 20, 2016 at 4:31 PM, David Henderson > <dhender...@digital-pipe.com> wrote: >> Hey Martin, thanks again for your help! So I had to bring back >> 'sneaker-net' to get strace on the machine via flash drive (after >> locating one), but it is now on the machine! I could not see anything >> in the 'ps' output (and it is the GNU version) regarding what was >> being called for contacting a DHCP server for the adapter. I also >> tried running the command that Peter suggested, but the command he >> listed has invalid syntax. After a few more calls and a ton of goop >> from 'strace', it appears that 'udhcpc' was being called as follows >> (at least on my dev machine): >> >> udhcpc -R -n -p /var/run/udhcpc.eth0.pid -i eth0 >> >> (Just in case anyone else comes across this post) >> >> Now that I know what is being called, can anyone help with the other >> part of the original question? >> >> Thanks, >> Dave >> >> >> On 9/20/16, Martin Townsend <mtownsend1...@gmail.com> wrote: >>> Hi David, >>> >>> I've had a quick look through the ifupdown code what DHCP binary gets >>> called and with what parameters is specific to how you've configured >>> busybox. >>> If you have the full version of ps you may be able to see the full >>> command line using ps aux. Maybe the busybox version will show this >>> information as well. >>> Another way which would be hard to capture is >>> cat /proc/pid/cmdline >>> but the problem is obtaining pid and then performing the cat command. >>> If you kick off the DHCP without a network cable plugged in, the >>> process should hang around a whilst it's sending it's DISCOVER >>> messages. >>> >>> If this fails I would try and get strace on the board. Can't you run >>> udhcpc/dhclient with the board connected to a network with a DHCP >>> server? USB Memory Stick? >>> >>> -Martin. >>> >>> >>> On Tue, Sep 20, 2016 at 2:54 PM, David Henderson >>> <dhender...@digital-pipe.com> wrote: >>>> Good morning all, I was just following up with this. >>>> >>>> Thanks, >>>> Dave >>>> >>>> >>>> On 9/19/16, David Henderson <dhender...@digital-pipe.com> wrote: >>>>> Plus that would only answer part of the original question. Any input >>>>> on that second part? >>>>> >>>>> Thanks, >>>>> Dave >>>>> >>>>> >>>>> On 9/19/16, David Henderson <dhender...@digital-pipe.com> wrote: >>>>>> Thanks again for your continued help Peter! Unfortunately the >>>>>> machine >>>>>> that I'm working on doesn't currently have a network connection since >>>>>> I've been fiddling with things so strace can't be installed. >>>>>> >>>>>> Dave >>>>>> >>>>>> >>>>>> On 9/19/16, Peter Korsgaard <pe...@korsgaard.com> wrote: >>>>>>>>>>>> "David" == David Henderson <dhender...@digital-pipe.com> >>>>>>>>>>>> writes: >>>>>>> >>>>>>> > Good morning Peter, thanks for your reply. C/C++ is not my forte >>>>>>> and >>>>>>> > while it may be readable for you, it may not be for others. >>>>>>> >>>>>>> Then use strace as I suggested. >>>>>>> >>>>>>> -- >>>>>>> Bye, Peter Korsgaard >>>>>>> >>>>>> >>>>> >>>> _______________________________________________ >>>> busybox mailing list >>>> busybox@busybox.net >>>> http://lists.busybox.net/mailman/listinfo/busybox >>> > > If I'm reading the question right you want to use different command > line options to udhcpc? > in ifupdown.c there is the following line > #define UDHCPC_CMD_OPTIONS CONFIG_IFUPDOWN_UDHCPC_CMD_OPTIONS > > So I assume there is a busybox configuration paramter > CONFIG_IFUPDOWN_UDHCPC_CMD_OPTIONS which you can be set? > > - Martin. > _______________________________________________ busybox mailing list busybox@busybox.net http://lists.busybox.net/mailman/listinfo/busybox
