seccomp: Report number of loaded filters in /proc/$pid/status

A common question asked when debugging seccomp filters is "how many filters are attached to your process?" Provide a way to easily answer this question through /proc/$pid/status with a "Seccomp_filters" line.

Kees Cook committed 6 years ago

Commit c818c031 parent e4d05024 files · +10 −0Browse files

Showing the changes to include/linux (1 of 4 files). Show all

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include/linux/seccomp.h+2−0

@@ -13,6 +13,7 @@ · 12 unmodified lines
13	13	#ifdef CONFIG_SECCOMP
14	14
15	15	#include <linux/thread_info.h>
	16	+#include <linux/atomic.h>
16	17	#include <asm/seccomp.h>
17	18
18	19	struct seccomp_filter;
@@ -29,6 +30,7 @@ struct seccomp_filter; · 10 unmodified lines
29	30	*/
30	31	struct seccomp {
31	32	int mode;
	33	+ atomic_t filter_count;
32	34	struct seccomp_filter *filter;
33	35	};
34	36