The main thing here is trace.so, which can be LD_PRELOAD-ed into the fullfw process running on Dell boards, to trace interesting ioctls.

Building with a toolchain that uses a recent glibc will not work, because trace.so will contain references to symbol version not present in Dell firmware (e.g. printf@GLIBC_2.4 on my system).

Building with a musl-based toolchain will work fairly well, but you may have to fix the binary with patchelf --replace-needed libc.so libc.so.6 trace.so.

make CC=/path/to/arm-linux-gcc

• /tmp/DellFS is a good place to put trace.so. You can upload it with make uuencode and uudecode && gunzip trace.so.gz.
• killall fullfw && LD_PRELOAD=/path/to/trace.so fullfw
• TODO: appease the AppMonitor
• read traces from /tmp/trace*.log

• Kernel module source code for iDRAC6 1.70