Looking for compiling help - jffs

Hi guys, I have compiled the latest firmware and added some libraries to the firmware to make oscam work. I run oscam from jffs (and some scripts) and would like to compile a firmware with these binaries built into the firmware by default so when I enable jffs - these files are present.

Where in the makefile would I find the part to include files in jffs - I have been looking for a couple of days but with no luck. I know how to add libraries no problem, the only issue I have is with this.

I should also say in using a RT-AC87U.

Thanks.

JFFS is a separate partition that's part of the unused flash, it's not a portion of the firmware itself.

@RMerlin, thanks for the fast reply. I never knew that so thanks. Ok what about if I compressed the files I want to add into a file that's stored in the firmware and add a button/checkbox to run a script to decompress those files. How would I go about putting that on the web interface in the admin/system page.

I don't need help to make the script, or how to put the compressed files in the firmware - just need to know where the web page is in the source code and how to make it run the script.

Thanks, and sorry if this question is a pain to answer.

mrdude said:

@RMerlin, thanks for the fast reply. I never knew that so thanks. Ok what about if I compressed the files I want to add into a file that's stored in the firmware and add a button/checkbox to run a script to decompress those files. How would I go about putting that on the web interface in the admin/system page.

I don't need help to make the script, or how to put the compressed files in the firmware - just need to know where the web page is in the source code and how to make it run the script.

Thanks, and sorry if this question is a pain to answer.

Click to expand...

The firmware already compresses its content with lzma, so there's nothing to be gained by compressing it.

The RT-AC87U has up to 64 MB of space on rootfs, so I don't know what you want to add that would be so large as it would no longer fit. Sounds like something that should rather be put on a USB disk if it's that large.

Thanks for the fast reply, maybe I should have made myself clearer.

OK this is what I have, I have built the firmware for personal use, I have also added some extra libraries so that I can run a program called oscam.

Currently If I have a new router with nvram erased (blank jffs) I need to use winscp to manually put the oscam files on on the jffs partition/folder - then I need to chmod all the files I added to the correct properties.

Now say I didn't want to do that with winscp - I want to run a script to automatically untar a file (that is stored in the firmware) that has all those oscam files set with the correct properties from the web interface. I know how to do this already. I can do this from telnet already. (don't worry about compression - i'm not bothered about that, my files are less than 1mb).

What I want to do is modify the web interface so I can run a script when jffs is enabled to untar the file with the oscam files in it - that way it puts all the files in jffs with the correct properties - and I don't need to use winscp or telnet to do it.

Does that make sense? I just need to know where the web interface files are in the source code - and then modify one to make it run a shell script from a button or check box.

The gui files are in

~/asuswrt-merlin/release/src/router/www

Thanks I'll have a look at these and see if I can work it out, much appreciated. Cheers

Why not simply put the files in their correct final locations (modules in /lib/modules/, binaries in /usr/bin, etc...)? It will be far simpler to implement, look at how it's dome in the router/others and router/rom directories.

What you want to do would require you to also modify the httpd source code. A webpage is run client-side, not server-side, so it cannot do anything on its own.

@RMerlin,

Thanks, the reason I never done it like that is that some files need to be replaced sometimes (such as the binary) so they need to be in a writable part of the router - same with some of the configs that the binary uses.

I have figured out how to do it another way using a script when the router starts,

It checks if the files are present in the router on booting - if they are the script exits, if not it installs them then reboots the router so they become usable.

This is the script:


Do I just put that script into: usr/sbin

So that it executes when the router boots up (and jffs is enabled), or do I need to put it somewhere else? Thanks.

Thanks for your advice though, I appreciate you taking the time to answer and for your advice, although thanks for making this firmware - it's really awesome.

mrdude said:

@RMerlin,

Thanks, the reason I never done it like that is that some files need to be replaced sometimes (such as the binary) so they need to be in a writable part of the router - same with some of the configs that the binary uses.

I have figured out how to do it another way using a script when the router starts,

It checks if the files are present in the router on booting - if they are the script exits, if not it installs them then reboots the router so they become usable.

This is the script:

Code:

#!/bin/sh
#DESCRIPTION=This script checks if jffs/oscam directory exists - if not, it extracts oscam to jffs.
#Test script in usr/sbin/

cd /

Dir="/jffs/configs"

if [ -d $Dir ]

then
    echo "Directory $Dir exists, going to check if oscam directory is already present in jffs."
  
OscamDir="/jffs/oscam"

if [ -d $OscamDir ]
then
    echo "$OscamDir directory already existed - exiting script now."
    #Do nothing because oscam directory already exists.
else
    echo "$OscamDir directory didn't exist - extract files now!, then reboot router"
    #put extact command here..
    tar -xzvf /usr/bin/oscam.tar.gz
    #put reboot command here..wait 5 seconds before rebooting to make sure all files are extracted.
    sleep 5
    reboot
fi   

else
    echo "$Dir does not exist."
    #Do nothing if /jffs/configs does not exist.
fi

Do I just put that script into: usr/sbin

So that it executes when the router boots up (and jffs is enabled), or do I need to put it somewhere else? Thanks.

Thanks for your advice though, I appreciate you taking the time to answer and for your advice, although thanks for making this firmware - it's really awesome.

Click to expand...

Just putting the script on the router won't make it execute automatically - you will also have to modify the code to make it run. Best location is probably right where I've put the init-start script, which is right after the JFFS partition gets mounted. Look in rc/init.c around line 5700, and add a system("/usr/sbin/yourscript") right before the line where I run the init-start script.

Thank you, I was looking for etc/init.d but couldn't find it. At least I know now how to run a script on starting.
I really appreciate that so thanks very much.

Would that code look like this then?


Edit:

Thanks, I tested that and it works fine, thanks very much for your help RMerlin.