Add examples to veriexec(8)
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Authored by sjg on Aug 1 2024, 8:50 PM.

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rGb77f618568f2: Add examples to veriexec(8)

Summary

Add missing flags to veriexec(8) as well as some examples to
help explain usage.

Also add veriexec.4

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rG FreeBSD src repository

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Buildable 58918
Build 55805: arc lint + arc unit

sjg created this revision.Aug 1 2024, 8:50 PM

Owners added a reviewer: Restricted Owners Package.Aug 1 2024, 8:50 PM

sjg requested review of this revision.Aug 1 2024, 8:50 PM

imp accepted this revision.Aug 1 2024, 9:07 PM

This revision is now accepted and ready to land.Aug 1 2024, 9:07 PM

Update history to avoid ambiguity

This revision now requires review to proceed.Aug 1 2024, 9:57 PM

Add missing comma

This revision was not accepted when it landed; it landed in state Needs Review.Aug 1 2024, 10:00 PM

This revision was automatically updated to reflect the committed changes.

Thanks for writing this. I didn't get a chance to review yesterday, but I added some comments below.

sbin/veriexec/veriexec.8
198
205	Some documentation on how to configure a trust store would be useful too.
227
share/man/man4/veriexec.4
35	This is missing some description of how to compile veriexec support into the kernel. Currently there is only `options MAC_VERIEXEC`, which compiles both mac_veriexec and dev/veriexec into the kernel. mac_veriexec.ko does not include dev/veriexec for some reason (i.e., sys/modules/mac_veriexec/Makefile is only lists sources files for the MAC component), so the kernel module is not useful. This seems unintentional.
50	Missing a word here.

share/man/man4/veriexec.4
35	There is sys/modules/veriexec for the device side. The MAC module does not have a dependency on the veriexec device. One could have another implementation that just uses the MAC/veriexec functionality to populate the meta-data store. Note that the veriexec.ko module has a dependency on mac_veriexec

share/man/man4/veriexec.4
35	Ah, I see, I missed that. Unless I'm missing something though, it's not listed in sys/modules/Makefile so never gets built, even when compiling with `WITH_VERIEXEC=`. When compiling into the kernel, dev/veriexec/verified_exec.c is dependent on `options MAC_VERIEXEC`, which seems incorrect.