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| 14:43.00 | jimmy06 | hey guys anyone about ? |
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| 22:02.47 | drasko | (gdb) target sim |
| 22:02.47 | drasko | Undefined target command: "sim". Try "help target". |
| 22:02.52 | drasko | Any ideas? |
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| 22:36.35 | jimmy006 | anyone know anything about udhcpd in here ? |
| 22:46.03 | Russ | I do |
| 22:46.04 | Russ | :) |
| 22:46.23 | jimmy006 | ahh haaa |
| 22:46.47 | jimmy006 | well my router uses it and generates udhcpd.conf on the fly |
| 22:47.16 | jimmy006 | got any idears how that would be done at all ? as my clients are getting external DNS address's |
| 22:47.47 | Russ | generating a text configuration file on the fly is pretty basic and straightforward |
| 22:48.09 | jimmy006 | yes, but i cant pathom out what part is doing it |
| 22:48.18 | Russ | A really simple way is to have a template with special strings, such as %DNS1%, etc |
| 22:48.22 | Russ | and then run it through sed |
| 22:48.34 | Russ | jimmy006: the init.d script would be a good place to generate it |
| 22:48.50 | jimmy006 | it doesnt have an init.d script per say |
| 22:48.57 | jimmy006 | i looked :( |
| 22:48.59 | Russ | what kind of router is it |
| 22:49.05 | jimmy006 | Belkin N1 Vision |
| 22:49.45 | Russ | they probably have some master control program that writes configuration files and starts/stops daemons |
| 22:49.51 | Russ | and that piece is probably closed source |
| 22:50.17 | jimmy006 | then how have i compiled a complete and working firmware ? |
| 22:50.35 | Russ | ok, does the udhcpd.conf file have a header on it |
| 22:50.45 | jimmy006 | hold on |
| 22:50.51 | jimmy006 | have to look threw the source again |
| 22:51.18 | jimmy006 | i have a file called udhcpd.conf.5 |
| 22:51.56 | jimmy006 | oh wait i think it is there but hidden deep |
| 22:52.32 | jimmy006 | wait i have to telnet to my router |
| 22:53.00 | Russ | thats a man page |
| 22:53.03 | jimmy006 | oh and it looks like busybox is controling the startup via one file |
| 22:53.06 | jimmy006 | ok |
| 22:53.21 | jimmy006 | with just a list of things to start |
| 22:55.08 | jimmy006 | cant seem to access the router at present |
| 22:55.53 | jimmy006 | brb going to restart the router |
| 22:58.09 | *** join/#elinux jimmy06 (n=jimmy06@host86-154-49-85.range86-154.btcentralplus.com) |
| 22:58.25 | jimmy06 | ok |
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| 23:02.24 | jimmy067 | no it doesnt have any headers |
| 23:02.48 | jimmy067 | its actually a symlink to another file |
| 23:04.32 | Russ | where is the other file? |
| 23:04.36 | Russ | probably in a tmpfs |
| 23:04.54 | Russ | does it have any comments or any other "hardcoded" strings that would be easy to grep for in other files? |
| 23:05.07 | jimmy067 | only the options |
| 23:05.15 | jimmy067 | ill paste bin it |
| 23:05.37 | jimmy067 | and i though a light blue tinge was a symlink |
| 23:05.46 | jimmy067 | though looking for the link i cant find it |
| 23:06.10 | jimmy067 | # find / -inum 955 -print |
| 23:06.24 | jimmy067 | <PROTECTED> |
| 23:06.54 | jimmy067 | http://pastebin.com/m52cd5bd3 |
| 23:06.58 | jimmy067 | pastebin link |
| 23:07.36 | jimmy067 | question. does udhcpd normally grab dns server results from resolve.conf |
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| 23:09.09 | jimmy067 | see if i have Automatic from ISP ticked on the dns section udhcpd ignors the 2nd and 3rd dns server |
| 23:09.13 | jimmy067 | theres only 1 entry |
| 23:09.21 | jimmy067 | i think it has something to do with peerdns |
| 23:09.55 | jimmy067 | but i dont uderstand the program enought to fiddle with it all :9 |
| 23:18.39 | jimmy067 | you still there Russ |
| 23:23.18 | Russ | ya |
| 23:24.19 | Russ | udhcpd only sources dns servers from udhcpd.confg |
| 23:24.36 | Russ | its not udhcpd.conf ignoring it |
| 23:24.42 | Russ | its whatever is generating udhcpd.conf |
| 23:25.55 | jimmy06 | hmm, wonder what and when its generating it then :( |
| 23:26.11 | jimmy06 | i dont want the extra servers there lol |
| 23:26.14 | Russ | grep the source for udhcpd.conf |
| 23:26.19 | jimmy06 | it messes things up |
| 23:26.22 | jimmy06 | i have |
| 23:26.27 | jimmy06 | that was my first step |
| 23:28.10 | jimmy06 | theres some patch files do they normally come with a udhcpd ? |
| 23:28.42 | jimmy06 | see i get this interesting line |
| 23:28.43 | jimmy06 | k-src/targets/buildFS:ln -s /var/udhcpd/udhcpd.conf $ROOTFS/etc/udhcpd.conf |
| 23:32.19 | Russ | thats pretty basic |
| 23:32.25 | jimmy06 | i know |
| 23:32.31 | Russ | no patches come with udhcpd |
| 23:32.35 | jimmy06 | BUT the /var folder is in red |
| 23:32.46 | jimmy06 | whats that mean i've never seen a red file before |
| 23:32.53 | Russ | what var file |
| 23:32.59 | jimmy06 | the var folder |
| 23:33.16 | jimmy06 | -s /var/udhcpd/udhcpd.conf |
| 23:33.48 | Russ | it usually means its +s or something |
| 23:33.48 | jimmy06 | Red folders are 'forbidden folders'. You don't have a permission to access them, |
| 23:33.54 | jimmy06 | fair enough lol |
| 23:37.28 | Russ | I don't think thats what it means... |
| 23:38.05 | jimmy06 | well i cant CD to it and i cant edit it |
| 23:38.11 | jimmy06 | acts like it doesnt exist |
| 23:38.46 | Russ | are you trying to edit it on the router? |
| 23:38.57 | jimmy06 | no thats read only |
| 23:39.19 | Russ | in the build system? |
| 23:39.29 | jimmy06 | yeah |
| 23:39.45 | Russ | /var is a tmpfs mount point, its only mounted on the router |
| 23:39.55 | jimmy06 | ah lol |
| 23:40.57 | jimmy06 | oh wait i think i found some scripts that might run |
| 23:41.23 | jimmy06 | nope there Braodcom Modem scripts |
| 23:43.17 | jimmy06 | i've found a peice of script that reads like its reading the file ppp/resolv.conf and writing the name servers in to resolv.conf and i can see another that reads like its then copying from resolv.conf to udhcpd.conf |
| 23:43.26 | jimmy06 | though im not clued up enought to understand it |
| 23:47.46 | jimmy06 | i have a file called /sbin/init |
| 23:50.33 | Russ | you want to look at whatever file writes udhcpd.conf |
| 23:51.14 | jimmy06 | the echo command can be used for that correct ? |
| 23:51.34 | Russ | so long as it has redirection somewhere |
| 23:51.52 | Russ | http://tldp.org/LDP/abs/html/ |
| 23:52.12 | Russ | http://tldp.org/LDP/abs/html/io-redirection.html |
| 23:52.30 | jimmy06 | ive seen some echo's with > filname.bleah |
| 23:53.36 | jimmy06 | it must be within the bootloader part of the file :( |
| 23:54.05 | Russ | I seriously doubt that |
| 23:54.18 | jimmy06 | wait i fount the init section |
| 23:54.34 | jimmy06 | do_filename.o |
| 23:57.06 | jimmy06 | ok its all writen in c code |