1 /*!\file net/if_packe.h
3 * Linux compatability header.
5 #ifndef __LINUX_IF_PACKET_H
6 #define __LINUX_IF_PACKET_H
10 unsigned short spkt_family;
11 unsigned char spkt_device[14];
12 unsigned short spkt_protocol;
17 unsigned short sll_family;
18 unsigned short sll_protocol;
20 unsigned short sll_hatype;
21 unsigned char sll_pkttype;
22 unsigned char sll_halen;
23 unsigned char sll_addr[8];
28 #define PACKET_HOST 0 /* To us */
29 #define PACKET_BROADCAST 1 /* To all */
30 #define PACKET_MULTICAST 2 /* To group */
31 #define PACKET_OTHERHOST 3 /* To someone else */
32 #define PACKET_OUTGOING 4 /* Outgoing of any type */
34 /* These ones are invisible by user level */
35 #define PACKET_LOOPBACK 5 /* MC/BRD frame looped back */
36 #define PACKET_FASTROUTE 6 /* Fastrouted frame */
38 /* Packet socket options */
40 #define PACKET_ADD_MEMBERSHIP 1
41 #define PACKET_DROP_MEMBERSHIP 2
42 #define PACKET_RECV_OUTPUT 3
44 /* Value 4 is still used by obsolete turbo-packet. */
45 #define PACKET_RX_RING 5
46 #define PACKET_STATISTICS 6
47 #define PACKET_COPY_THRESH 7
51 unsigned int tp_packets;
52 unsigned int tp_drops;
57 unsigned long tp_status;
58 #define TP_STATUS_KERNEL 0
59 #define TP_STATUS_USER 1
60 #define TP_STATUS_COPY 2
61 #define TP_STATUS_LOSING 4
62 #define TP_STATUS_CSUMNOTREADY 8
64 unsigned int tp_snaplen;
65 unsigned short tp_mac;
66 unsigned short tp_net;
71 #define TPACKET_ALIGNMENT 16
72 #define TPACKET_ALIGN(x) (((x)+TPACKET_ALIGNMENT-1) & ~(TPACKET_ALIGNMENT-1))
73 #define TPACKET_HDRLEN (TPACKET_ALIGN(sizeof(struct tpacket_hdr)) + sizeof(struct sockaddr_ll))
78 - Start. Frame must be aligned to TPACKET_ALIGNMENT=16
80 - pad to TPACKET_ALIGNMENT=16
82 - Gap, chosen so that packet data (Start+tp_net) alignes to TPACKET_ALIGNMENT=16
83 - Start+tp_mac: [ Optional MAC header ]
84 - Start+tp_net: Packet data, aligned to TPACKET_ALIGNMENT=16.
85 - Pad to align to TPACKET_ALIGNMENT=16
90 unsigned int tp_block_size; /* Minimal size of contiguous block */
91 unsigned int tp_block_nr; /* Number of blocks */
92 unsigned int tp_frame_size; /* Size of frame */
93 unsigned int tp_frame_nr; /* Total number of frames */
99 unsigned short mr_type;
100 unsigned short mr_alen;
101 unsigned char mr_address[8];
104 #define PACKET_MR_MULTICAST 0
105 #define PACKET_MR_PROMISC 1
106 #define PACKET_MR_ALLMULTI 2