1 #ifndef __LINUX_IF_PACKET_H
2 #define __LINUX_IF_PACKET_H
6 unsigned short spkt_family;
7 unsigned char spkt_device[14];
8 unsigned short spkt_protocol;
13 unsigned short sll_family;
14 unsigned short sll_protocol;
16 unsigned short sll_hatype;
17 unsigned char sll_pkttype;
18 unsigned char sll_halen;
19 unsigned char sll_addr[8];
24 #define PACKET_HOST 0 /* To us */
25 #define PACKET_BROADCAST 1 /* To all */
26 #define PACKET_MULTICAST 2 /* To group */
27 #define PACKET_OTHERHOST 3 /* To someone else */
28 #define PACKET_OUTGOING 4 /* Outgoing of any type */
29 /* These ones are invisible by user level */
30 #define PACKET_LOOPBACK 5 /* MC/BRD frame looped back */
31 #define PACKET_FASTROUTE 6 /* Fastrouted frame */
33 /* Packet socket options */
35 #define PACKET_ADD_MEMBERSHIP 1
36 #define PACKET_DROP_MEMBERSHIP 2
37 #define PACKET_RECV_OUTPUT 3
38 /* Value 4 is still used by obsolete turbo-packet. */
39 #define PACKET_RX_RING 5
40 #define PACKET_STATISTICS 6
41 #define PACKET_COPY_THRESH 7
45 unsigned int tp_packets;
46 unsigned int tp_drops;
51 unsigned long tp_status;
52 #define TP_STATUS_KERNEL 0
53 #define TP_STATUS_USER 1
54 #define TP_STATUS_COPY 2
55 #define TP_STATUS_LOSING 4
56 #define TP_STATUS_CSUMNOTREADY 8
58 unsigned int tp_snaplen;
59 unsigned short tp_mac;
60 unsigned short tp_net;
65 #define TPACKET_ALIGNMENT 16
66 #define TPACKET_ALIGN(x) (((x)+TPACKET_ALIGNMENT-1)&~(TPACKET_ALIGNMENT-1))
67 #define TPACKET_HDRLEN (TPACKET_ALIGN(sizeof(struct tpacket_hdr)) + sizeof(struct sockaddr_ll))
72 - Start. Frame must be aligned to TPACKET_ALIGNMENT=16
74 - pad to TPACKET_ALIGNMENT=16
76 - Gap, chosen so that packet data (Start+tp_net) alignes to TPACKET_ALIGNMENT=16
77 - Start+tp_mac: [ Optional MAC header ]
78 - Start+tp_net: Packet data, aligned to TPACKET_ALIGNMENT=16.
79 - Pad to align to TPACKET_ALIGNMENT=16
84 unsigned int tp_block_size; /* Minimal size of contiguous block */
85 unsigned int tp_block_nr; /* Number of blocks */
86 unsigned int tp_frame_size; /* Size of frame */
87 unsigned int tp_frame_nr; /* Total number of frames */
93 unsigned short mr_type;
94 unsigned short mr_alen;
95 unsigned char mr_address[8];
98 #define PACKET_MR_MULTICAST 0
99 #define PACKET_MR_PROMISC 1
100 #define PACKET_MR_ALLMULTI 2