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Comments (1)

happyCoder92 avatar happyCoder92 commented on August 24, 2024 1

Hi,

I added an option to dump_policy_bpf tool to output the bpf filter as array initializer using standard Linux macros.

Example:
mypolicy.kafel:

ALLOW { read }
DEFAULT DENY

mypolicy.c

#include <linux/filter.h>
#include <linux/seccomp.h>
#include <stddef.h>

int main(int argc, char* argv[]) {
  struct sock_filter policy[] = {
#include "mypolicy.kafel.h"
  };
  struct sock_fprog prog;
  prog.len = sizeof(policy)/sizeof(policy[0]);
  prog.filter = policy;
  ...
  return 0;
}

Makefile:

.SUFFIXES: .kafel
%.kafel.h: %.kafel
        $KAFEL_DIR/tools/dump_policy_bpf/dump_policy_bpf -c $< > $@

from kafel.

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