include/uapi/linux/pfkeyv2.h

File Facts

System

Linux kernel

Corpus path

include/uapi/linux/pfkeyv2.h

Extension

.h

Size

10636 bytes

Lines

387

Domain

Core OS

Bucket

Core Kernel Interface

Inferred role

Core OS: implementation source

Status

source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

• Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/types.h

Detected Declarations

• struct sadb_msg
• struct sadb_ext
• struct sadb_sa
• struct sadb_lifetime
• struct sadb_address
• struct sadb_key
• struct sadb_ident
• struct sadb_sens
• struct sadb_prop
• struct sadb_comb
• struct sadb_supported
• struct sadb_alg
• struct sadb_spirange
• struct sadb_x_kmprivate
• struct sadb_x_sa2
• struct sadb_x_policy
• struct sadb_x_ipsecrequest
• struct sadb_x_nat_t_type
• struct sadb_x_nat_t_port
• struct sadb_x_sec_ctx
• struct sadb_x_kmaddress
• struct sadb_x_filter

Annotated Snippet

struct sadb_msg {
	__u8		sadb_msg_version;
	__u8		sadb_msg_type;
	__u8		sadb_msg_errno;
	__u8		sadb_msg_satype;
	__u16	sadb_msg_len;
	__u16	sadb_msg_reserved;
	__u32	sadb_msg_seq;
	__u32	sadb_msg_pid;
} __attribute__((packed));
/* sizeof(struct sadb_msg) == 16 */

struct sadb_ext {
	__u16	sadb_ext_len;
	__u16	sadb_ext_type;
} __attribute__((packed));
/* sizeof(struct sadb_ext) == 4 */

struct sadb_sa {
	__u16	sadb_sa_len;
	__u16	sadb_sa_exttype;
	__be32		sadb_sa_spi;
	__u8		sadb_sa_replay;
	__u8		sadb_sa_state;
	__u8		sadb_sa_auth;
	__u8		sadb_sa_encrypt;
	__u32	sadb_sa_flags;
} __attribute__((packed));
/* sizeof(struct sadb_sa) == 16 */

struct sadb_lifetime {
	__u16	sadb_lifetime_len;
	__u16	sadb_lifetime_exttype;
	__u32	sadb_lifetime_allocations;
	__u64	sadb_lifetime_bytes;
	__u64	sadb_lifetime_addtime;
	__u64	sadb_lifetime_usetime;
} __attribute__((packed));
/* sizeof(struct sadb_lifetime) == 32 */

struct sadb_address {
	__u16	sadb_address_len;
	__u16	sadb_address_exttype;
	__u8		sadb_address_proto;
	__u8		sadb_address_prefixlen;
	__u16	sadb_address_reserved;
} __attribute__((packed));
/* sizeof(struct sadb_address) == 8 */

struct sadb_key {
	__u16	sadb_key_len;
	__u16	sadb_key_exttype;
	__u16	sadb_key_bits;
	__u16	sadb_key_reserved;
} __attribute__((packed));
/* sizeof(struct sadb_key) == 8 */

struct sadb_ident {
	__u16	sadb_ident_len;
	__u16	sadb_ident_exttype;
	__u16	sadb_ident_type;
	__u16	sadb_ident_reserved;
	__u64	sadb_ident_id;
} __attribute__((packed));
/* sizeof(struct sadb_ident) == 16 */

struct sadb_sens {
	__u16	sadb_sens_len;
	__u16	sadb_sens_exttype;
	__u32	sadb_sens_dpd;
	__u8		sadb_sens_sens_level;
	__u8		sadb_sens_sens_len;
	__u8		sadb_sens_integ_level;
	__u8		sadb_sens_integ_len;
	__u32	sadb_sens_reserved;
} __attribute__((packed));
/* sizeof(struct sadb_sens) == 16 */

/* followed by:
	__u64	sadb_sens_bitmap[sens_len];
	__u64	sadb_integ_bitmap[integ_len];  */

struct sadb_prop {
	__u16	sadb_prop_len;
	__u16	sadb_prop_exttype;
	__u8		sadb_prop_replay;
	__u8		sadb_prop_reserved[3];
} __attribute__((packed));
/* sizeof(struct sadb_prop) == 8 */

Annotation

• Immediate include surface: `linux/types.h`.
• Detected declarations: `struct sadb_msg`, `struct sadb_ext`, `struct sadb_sa`, `struct sadb_lifetime`, `struct sadb_address`, `struct sadb_key`, `struct sadb_ident`, `struct sadb_sens`, `struct sadb_prop`, `struct sadb_comb`.
• Atlas domain: Core OS / Core Kernel Interface.
• 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.