include/uapi/linux/batadv_packet.h

Source file repositories/reference/linux-study-clean/include/uapi/linux/batadv_packet.h

File Facts

System
Linux kernel
Corpus path
include/uapi/linux/batadv_packet.h
Extension
.h
Size
21802 bytes
Lines
670
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.

Dependency Surface

Detected Declarations

Annotated Snippet

struct batadv_bla_claim_dst {
	__u8   magic[3];	/* FF:43:05 */
	__u8   type;		/* bla_claimframe */
	__be16 group;		/* group id */
};

/**
 * struct batadv_ogm_packet - ogm (routing protocol) packet
 * @packet_type: batman-adv packet type, part of the general header
 * @version: batman-adv protocol version, part of the general header
 * @ttl: time to live for this packet, part of the general header
 * @flags: contains routing relevant flags - see enum batadv_iv_flags
 * @seqno: sequence identification
 * @orig: address of the source node
 * @prev_sender: address of the previous sender
 * @reserved: reserved byte for alignment
 * @tq: transmission quality
 * @tvlv_len: length of tvlv data following the ogm header
 */
struct batadv_ogm_packet {
	__u8   packet_type;
	__u8   version;
	__u8   ttl;
	__u8   flags;
	__be32 seqno;
	__u8   orig[ETH_ALEN];
	__u8   prev_sender[ETH_ALEN];
	__u8   reserved;
	__u8   tq;
	__be16 tvlv_len;
};

#define BATADV_OGM_HLEN sizeof(struct batadv_ogm_packet)

/**
 * struct batadv_ogm2_packet - ogm2 (routing protocol) packet
 * @packet_type: batman-adv packet type, part of the general header
 * @version: batman-adv protocol version, part of the general header
 * @ttl: time to live for this packet, part of the general header
 * @flags: reserved for routing relevant flags - currently always 0
 * @seqno: sequence number
 * @orig: originator mac address
 * @tvlv_len: length of the appended tvlv buffer (in bytes)
 * @throughput: the currently flooded path throughput
 */
struct batadv_ogm2_packet {
	__u8   packet_type;
	__u8   version;
	__u8   ttl;
	__u8   flags;
	__be32 seqno;
	__u8   orig[ETH_ALEN];
	__be16 tvlv_len;
	__be32 throughput;
};

#define BATADV_OGM2_HLEN sizeof(struct batadv_ogm2_packet)

/**
 * struct batadv_elp_packet - elp (neighbor discovery) packet
 * @packet_type: batman-adv packet type, part of the general header
 * @version: batman-adv protocol version, part of the general header
 * @orig: originator mac address
 * @seqno: sequence number
 * @elp_interval: currently used ELP sending interval in ms
 */
struct batadv_elp_packet {
	__u8   packet_type;
	__u8   version;
	__u8   orig[ETH_ALEN];
	__be32 seqno;
	__be32 elp_interval;
};

#define BATADV_ELP_HLEN sizeof(struct batadv_elp_packet)

/**
 * struct batadv_icmp_header - common members among all the ICMP packets
 * @packet_type: batman-adv packet type, part of the general header
 * @version: batman-adv protocol version, part of the general header
 * @ttl: time to live for this packet, part of the general header
 * @msg_type: ICMP packet type
 * @dst: address of the destination node
 * @orig: address of the source node
 * @uid: local ICMP socket identifier
 * @align: not used - useful for alignment purposes only
 *
 * This structure is used for ICMP packet parsing only and it is never sent
 * over the wire. The alignment field at the end is there to ensure that
 * members are padded the same way as they are in real packets.

Annotation

Implementation Notes