mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 20:53:53 +08:00
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
103 lines
2.5 KiB
C
103 lines
2.5 KiB
C
#ifndef __LINUX_IF_PACKET_H
|
|
#define __LINUX_IF_PACKET_H
|
|
|
|
struct sockaddr_pkt
|
|
{
|
|
unsigned short spkt_family;
|
|
unsigned char spkt_device[14];
|
|
unsigned short spkt_protocol;
|
|
};
|
|
|
|
struct sockaddr_ll
|
|
{
|
|
unsigned short sll_family;
|
|
unsigned short sll_protocol;
|
|
int sll_ifindex;
|
|
unsigned short sll_hatype;
|
|
unsigned char sll_pkttype;
|
|
unsigned char sll_halen;
|
|
unsigned char sll_addr[8];
|
|
};
|
|
|
|
/* Packet types */
|
|
|
|
#define PACKET_HOST 0 /* To us */
|
|
#define PACKET_BROADCAST 1 /* To all */
|
|
#define PACKET_MULTICAST 2 /* To group */
|
|
#define PACKET_OTHERHOST 3 /* To someone else */
|
|
#define PACKET_OUTGOING 4 /* Outgoing of any type */
|
|
/* These ones are invisible by user level */
|
|
#define PACKET_LOOPBACK 5 /* MC/BRD frame looped back */
|
|
#define PACKET_FASTROUTE 6 /* Fastrouted frame */
|
|
|
|
/* Packet socket options */
|
|
|
|
#define PACKET_ADD_MEMBERSHIP 1
|
|
#define PACKET_DROP_MEMBERSHIP 2
|
|
#define PACKET_RECV_OUTPUT 3
|
|
/* Value 4 is still used by obsolete turbo-packet. */
|
|
#define PACKET_RX_RING 5
|
|
#define PACKET_STATISTICS 6
|
|
#define PACKET_COPY_THRESH 7
|
|
|
|
struct tpacket_stats
|
|
{
|
|
unsigned int tp_packets;
|
|
unsigned int tp_drops;
|
|
};
|
|
|
|
struct tpacket_hdr
|
|
{
|
|
unsigned long tp_status;
|
|
#define TP_STATUS_KERNEL 0
|
|
#define TP_STATUS_USER 1
|
|
#define TP_STATUS_COPY 2
|
|
#define TP_STATUS_LOSING 4
|
|
#define TP_STATUS_CSUMNOTREADY 8
|
|
unsigned int tp_len;
|
|
unsigned int tp_snaplen;
|
|
unsigned short tp_mac;
|
|
unsigned short tp_net;
|
|
unsigned int tp_sec;
|
|
unsigned int tp_usec;
|
|
};
|
|
|
|
#define TPACKET_ALIGNMENT 16
|
|
#define TPACKET_ALIGN(x) (((x)+TPACKET_ALIGNMENT-1)&~(TPACKET_ALIGNMENT-1))
|
|
#define TPACKET_HDRLEN (TPACKET_ALIGN(sizeof(struct tpacket_hdr)) + sizeof(struct sockaddr_ll))
|
|
|
|
/*
|
|
Frame structure:
|
|
|
|
- Start. Frame must be aligned to TPACKET_ALIGNMENT=16
|
|
- struct tpacket_hdr
|
|
- pad to TPACKET_ALIGNMENT=16
|
|
- struct sockaddr_ll
|
|
- Gap, chosen so that packet data (Start+tp_net) alignes to TPACKET_ALIGNMENT=16
|
|
- Start+tp_mac: [ Optional MAC header ]
|
|
- Start+tp_net: Packet data, aligned to TPACKET_ALIGNMENT=16.
|
|
- Pad to align to TPACKET_ALIGNMENT=16
|
|
*/
|
|
|
|
struct tpacket_req
|
|
{
|
|
unsigned int tp_block_size; /* Minimal size of contiguous block */
|
|
unsigned int tp_block_nr; /* Number of blocks */
|
|
unsigned int tp_frame_size; /* Size of frame */
|
|
unsigned int tp_frame_nr; /* Total number of frames */
|
|
};
|
|
|
|
struct packet_mreq
|
|
{
|
|
int mr_ifindex;
|
|
unsigned short mr_type;
|
|
unsigned short mr_alen;
|
|
unsigned char mr_address[8];
|
|
};
|
|
|
|
#define PACKET_MR_MULTICAST 0
|
|
#define PACKET_MR_PROMISC 1
|
|
#define PACKET_MR_ALLMULTI 2
|
|
|
|
#endif
|