tools/perf/trace/beauty/seccomp.c

Source file repositories/reference/linux-study-clean/tools/perf/trace/beauty/seccomp.c

File Facts

System
Linux kernel
Corpus path
tools/perf/trace/beauty/seccomp.c
Extension
.c
Size
1557 bytes
Lines
56
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: implementation source
Status
source implementation candidate

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: LGPL-2.1
#ifndef SECCOMP_SET_MODE_STRICT
#define SECCOMP_SET_MODE_STRICT 0
#endif
#ifndef SECCOMP_SET_MODE_FILTER
#define SECCOMP_SET_MODE_FILTER 1
#endif

static size_t syscall_arg__scnprintf_seccomp_op(char *bf, size_t size, struct syscall_arg *arg)
{
	bool show_prefix = arg->show_string_prefix;
	const char *prefix = "SECCOMP_SET_MODE_";
	int op = arg->val;
	size_t printed = 0;

	switch (op) {
#define	P_SECCOMP_SET_MODE_OP(n) case SECCOMP_SET_MODE_##n: printed = scnprintf(bf, size, "%s%s", show_prefix ? prefix : "", #n); break
	P_SECCOMP_SET_MODE_OP(STRICT);
	P_SECCOMP_SET_MODE_OP(FILTER);
#undef P_SECCOMP_SET_MODE_OP
	default: printed = scnprintf(bf, size, "%#x", op);			  break;
	}

	return printed;
}

#define SCA_SECCOMP_OP  syscall_arg__scnprintf_seccomp_op

#ifndef SECCOMP_FILTER_FLAG_TSYNC
#define SECCOMP_FILTER_FLAG_TSYNC 1
#endif

static size_t syscall_arg__scnprintf_seccomp_flags(char *bf, size_t size,
						   struct syscall_arg *arg)
{
	bool show_prefix = arg->show_string_prefix;
	const char *prefix = "SECCOMP_FILTER_FLAG_";
	int printed = 0, flags = arg->val;

#define	P_FLAG(n) \
	if (flags & SECCOMP_FILTER_FLAG_##n) { \
		printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", #n); \
		flags &= ~SECCOMP_FILTER_FLAG_##n; \
	}

	P_FLAG(TSYNC);
#undef P_FLAG

	if (flags)
		printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);

	return printed;
}

#define SCA_SECCOMP_FLAGS syscall_arg__scnprintf_seccomp_flags

Annotation

Implementation Notes