tools/testing/selftests/net/ioam6_parser.c

Source file repositories/reference/linux-study-clean/tools/testing/selftests/net/ioam6_parser.c

File Facts

System: Linux kernel
Corpus path: tools/testing/selftests/net/ioam6_parser.c
Extension: .c
Size: 26708 bytes
Lines: 1102
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

arpa/inet.h
errno.h
limits.h
linux/const.h
linux/if_ether.h
linux/ioam6.h
linux/ipv6.h
stdbool.h
stdlib.h
string.h
unistd.h

Detected Declarations

struct ioam_config
function check_header
function check_data
function check_ioam_trace
function str2id
function ipv6_addr_equal
function get_u32
function get_u16
function get_u8
function main

Annotated Snippet

struct ioam_config {
	__u32 id;
	__u64 wide;
	__u16 ingr_id;
	__u16 egr_id;
	__u32 ingr_wide;
	__u32 egr_wide;
	__u32 ns_data;
	__u64 ns_wide;
	__u32 sc_id;
	__u8 hlim;
	char *sc_data;
};

/*
 * Be careful if you modify structs below - everything MUST be kept synchronized
 * with configurations inside ioam6.sh and always reflect the same.
 */

static struct ioam_config node1 = {
	.id = 1,
	.wide = 11111111,
	.ingr_id = 0xffff, /* default value */
	.egr_id = 101,
	.ingr_wide = 0xffffffff, /* default value */
	.egr_wide = 101101,
	.ns_data = 0xdeadbeef,
	.ns_wide = 0xcafec0caf00dc0de,
	.sc_id = 777,
	.sc_data = "something that will be 4n-aligned",
	.hlim = 64,
};

static struct ioam_config node2 = {
	.id = 2,
	.wide = 22222222,
	.ingr_id = 201,
	.egr_id = 202,
	.ingr_wide = 201201,
	.egr_wide = 202202,
	.ns_data = 0xffffffff, /* default value */
	.ns_wide = 0xffffffffffffffff, /* default value */
	.sc_id = 0xffffff, /* default value */
	.sc_data = NULL,
	.hlim = 63,
};

enum {
	/**********
	 * OUTPUT *
	 **********/
	__TEST_OUT_MIN,

	TEST_OUT_UNDEF_NS,
	TEST_OUT_NO_ROOM,
	TEST_OUT_NO_ROOM_OSS,
	TEST_OUT_BIT0,
	TEST_OUT_BIT1,
	TEST_OUT_BIT2,
	TEST_OUT_BIT3,
	TEST_OUT_BIT4,
	TEST_OUT_BIT5,
	TEST_OUT_BIT6,
	TEST_OUT_BIT7,
	TEST_OUT_BIT8,
	TEST_OUT_BIT9,
	TEST_OUT_BIT10,
	TEST_OUT_BIT11,
	TEST_OUT_BIT22,
	TEST_OUT_SIZE4,
	TEST_OUT_SIZE8,
	TEST_OUT_SIZE12,
	TEST_OUT_SIZE16,
	TEST_OUT_SIZE20,
	TEST_OUT_SIZE24,
	TEST_OUT_SIZE28,
	TEST_OUT_SIZE32,
	TEST_OUT_SIZE36,
	TEST_OUT_SIZE40,
	TEST_OUT_SIZE44,
	TEST_OUT_SIZE48,
	TEST_OUT_SIZE52,
	TEST_OUT_SIZE56,
	TEST_OUT_SIZE60,
	TEST_OUT_SIZE64,
	TEST_OUT_SIZE68,
	TEST_OUT_SIZE72,
	TEST_OUT_SIZE76,
	TEST_OUT_SIZE80,
	TEST_OUT_SIZE84,

Annotation

Immediate include surface: `arpa/inet.h`, `errno.h`, `limits.h`, `linux/const.h`, `linux/if_ether.h`, `linux/ioam6.h`, `linux/ipv6.h`, `stdbool.h`.
Detected declarations: `struct ioam_config`, `function check_header`, `function check_data`, `function check_ioam_trace`, `function str2id`, `function ipv6_addr_equal`, `function get_u32`, `function get_u16`, `function get_u8`, `function main`.
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.