1 #ifndef __LINUX_IF_PACKET_H
2 #define __LINUX_IF_PACKET_H
4 #include <linux/types.h>
8 unsigned short spkt_family;
9 unsigned char spkt_device[14];
15 unsigned short sll_family;
18 unsigned short sll_hatype;
19 unsigned char sll_pkttype;
20 unsigned char sll_halen;
21 unsigned char sll_addr[8];
26 #define PACKET_HOST 0 /* To us */
27 #define PACKET_BROADCAST 1 /* To all */
28 #define PACKET_MULTICAST 2 /* To group */
29 #define PACKET_OTHERHOST 3 /* To someone else */
30 #define PACKET_OUTGOING 4 /* Outgoing of any type */
31 /* These ones are invisible by user level */
32 #define PACKET_LOOPBACK 5 /* MC/BRD frame looped back */
33 #define PACKET_FASTROUTE 6 /* Fastrouted frame */
35 /* Packet socket options */
37 #define PACKET_ADD_MEMBERSHIP 1
38 #define PACKET_DROP_MEMBERSHIP 2
39 #define PACKET_RECV_OUTPUT 3
40 /* Value 4 is still used by obsolete turbo-packet. */
41 #define PACKET_RX_RING 5
42 #define PACKET_STATISTICS 6
43 #define PACKET_COPY_THRESH 7
44 #define PACKET_AUXDATA 8
45 #define PACKET_ORIGDEV 9
46 #define PACKET_VERSION 10
47 #define PACKET_HDRLEN 11
48 #define PACKET_RESERVE 12
49 #define PACKET_TX_RING 13
50 #define PACKET_LOSS 14
54 unsigned int tp_packets;
55 unsigned int tp_drops;
58 struct tpacket_auxdata
68 /* Rx ring - header status */
69 #define TP_STATUS_KERNEL 0x0
70 #define TP_STATUS_USER 0x1
71 #define TP_STATUS_COPY 0x2
72 #define TP_STATUS_LOSING 0x4
73 #define TP_STATUS_CSUMNOTREADY 0x8
75 /* Tx ring - header status */
76 #define TP_STATUS_AVAILABLE 0x0
77 #define TP_STATUS_SEND_REQUEST 0x1
78 #define TP_STATUS_SENDING 0x2
79 #define TP_STATUS_WRONG_FORMAT 0x4
83 unsigned long tp_status;
85 unsigned int tp_snaplen;
86 unsigned short tp_mac;
87 unsigned short tp_net;
92 #define TPACKET_ALIGNMENT 16
93 #define TPACKET_ALIGN(x) (((x)+TPACKET_ALIGNMENT-1)&~(TPACKET_ALIGNMENT-1))
94 #define TPACKET_HDRLEN (TPACKET_ALIGN(sizeof(struct tpacket_hdr)) + sizeof(struct sockaddr_ll))
108 #define TPACKET2_HDRLEN (TPACKET_ALIGN(sizeof(struct tpacket2_hdr)) + sizeof(struct sockaddr_ll))
110 enum tpacket_versions
119 - Start. Frame must be aligned to TPACKET_ALIGNMENT=16
121 - pad to TPACKET_ALIGNMENT=16
123 - Gap, chosen so that packet data (Start+tp_net) alignes to TPACKET_ALIGNMENT=16
124 - Start+tp_mac: [ Optional MAC header ]
125 - Start+tp_net: Packet data, aligned to TPACKET_ALIGNMENT=16.
126 - Pad to align to TPACKET_ALIGNMENT=16
131 unsigned int tp_block_size; /* Minimal size of contiguous block */
132 unsigned int tp_block_nr; /* Number of blocks */
133 unsigned int tp_frame_size; /* Size of frame */
134 unsigned int tp_frame_nr; /* Total number of frames */
140 unsigned short mr_type;
141 unsigned short mr_alen;
142 unsigned char mr_address[8];
145 #define PACKET_MR_MULTICAST 0
146 #define PACKET_MR_PROMISC 1
147 #define PACKET_MR_ALLMULTI 2
148 #define PACKET_MR_UNICAST 3