tools/perf/tests/workloads/landlock.c

Source file repositories/reference/linux-study-clean/tools/perf/tests/workloads/landlock.c

File Facts

System
Linux kernel
Corpus path
tools/perf/tests/workloads/landlock.c
Extension
.c
Size
1721 bytes
Lines
67
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

struct landlock_path_beneath_attr {
        __u64 allowed_access;
        __s32 parent_fd;
};
#endif

#ifndef LANDLOCK_ACCESS_NET_CONNECT_TCP
#define LANDLOCK_ACCESS_NET_CONNECT_TCP	(1ULL << 1)

#define LANDLOCK_RULE_NET_PORT		2

struct landlock_net_port_attr {
	__u64 allowed_access;
	__u64 port;
};
#endif

static int landlock(int argc __maybe_unused, const char **argv __maybe_unused)
{
	int fd = 11, flags = 45;

	struct landlock_path_beneath_attr path_beneath_attr = {
		.allowed_access = LANDLOCK_ACCESS_FS_READ_FILE,
		.parent_fd = 14,
	};

	struct landlock_net_port_attr net_port_attr = {
		.port = 19,
		.allowed_access = LANDLOCK_ACCESS_NET_CONNECT_TCP,
	};

	syscall(__NR_landlock_add_rule, fd, LANDLOCK_RULE_PATH_BENEATH,
		&path_beneath_attr, flags);

	syscall(__NR_landlock_add_rule, fd, LANDLOCK_RULE_NET_PORT,
		&net_port_attr, flags);

	return 0;
}

DEFINE_WORKLOAD(landlock);

Annotation

Implementation Notes