tools/testing/selftests/lsm/lsm_get_self_attr_test.c

File Facts

System

Linux kernel

Corpus path

tools/testing/selftests/lsm/lsm_get_self_attr_test.c

Extension

.c

Size

6362 bytes

Lines

276

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.

• Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/lsm.h
• fcntl.h
• string.h
• stdio.h
• unistd.h
• sys/types.h
• kselftest_harness.h
• common.h

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

switch (syscall_lsms[i]) {
		case LSM_ID_SELINUX:
			cnt_current++;
			cnt_exec++;
			cnt_fscreate++;
			cnt_keycreate++;
			cnt_prev++;
			cnt_sockcreate++;
			break;
		case LSM_ID_SMACK:
			cnt_current++;
			break;
		case LSM_ID_APPARMOR:
			cnt_current++;
			cnt_exec++;
			cnt_prev++;
			break;
		default:
			break;
		}
	}

	if (cnt_current) {
		size = page_size;
		count = lsm_get_self_attr(LSM_ATTR_CURRENT, ctx, &size, 0);
		ASSERT_EQ(cnt_current, count);
		tctx = ctx;
		ASSERT_EQ(0, read_proc_attr("current", attr, page_size));
		ASSERT_EQ(0, strcmp((char *)tctx->ctx, attr));
		for (i = 1; i < count; i++) {
			tctx = next_ctx(tctx);
			ASSERT_NE(0, strcmp((char *)tctx->ctx, attr));
		}
	}
	if (cnt_exec) {
		size = page_size;
		count = lsm_get_self_attr(LSM_ATTR_EXEC, ctx, &size, 0);
		ASSERT_GE(cnt_exec, count);
		if (count > 0) {
			tctx = ctx;
			if (read_proc_attr("exec", attr, page_size) == 0)
				ASSERT_EQ(0, strcmp((char *)tctx->ctx, attr));
		}
		for (i = 1; i < count; i++) {
			tctx = next_ctx(tctx);
			ASSERT_NE(0, strcmp((char *)tctx->ctx, attr));
		}
	}
	if (cnt_fscreate) {
		size = page_size;
		count = lsm_get_self_attr(LSM_ATTR_FSCREATE, ctx, &size, 0);
		ASSERT_GE(cnt_fscreate, count);
		if (count > 0) {
			tctx = ctx;
			if (read_proc_attr("fscreate", attr, page_size) == 0)
				ASSERT_EQ(0, strcmp((char *)tctx->ctx, attr));
		}
		for (i = 1; i < count; i++) {
			tctx = next_ctx(tctx);
			ASSERT_NE(0, strcmp((char *)tctx->ctx, attr));
		}
	}
	if (cnt_keycreate) {
		size = page_size;
		count = lsm_get_self_attr(LSM_ATTR_KEYCREATE, ctx, &size, 0);
		ASSERT_GE(cnt_keycreate, count);
		if (count > 0) {
			tctx = ctx;
			if (read_proc_attr("keycreate", attr, page_size) == 0)
				ASSERT_EQ(0, strcmp((char *)tctx->ctx, attr));
		}
		for (i = 1; i < count; i++) {
			tctx = next_ctx(tctx);
			ASSERT_NE(0, strcmp((char *)tctx->ctx, attr));
		}
	}
	if (cnt_prev) {
		size = page_size;
		count = lsm_get_self_attr(LSM_ATTR_PREV, ctx, &size, 0);
		ASSERT_GE(cnt_prev, count);
		if (count > 0) {
			tctx = ctx;
			ASSERT_EQ(0, read_proc_attr("prev", attr, page_size));
			ASSERT_EQ(0, strcmp((char *)tctx->ctx, attr));
			for (i = 1; i < count; i++) {
				tctx = next_ctx(tctx);
				ASSERT_NE(0, strcmp((char *)tctx->ctx, attr));
			}
		}
	}

Annotation

• Immediate include surface: `linux/lsm.h`, `fcntl.h`, `string.h`, `stdio.h`, `unistd.h`, `sys/types.h`, `kselftest_harness.h`, `common.h`.
• Atlas domain: Support Tooling And Documentation / tools.
• Implementation status: source implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.