Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef __LINUX_IF_PACKET_H |
| 2 | #define __LINUX_IF_PACKET_H |
| 3 | |
Al Viro | 0e11c91 | 2006-11-08 00:26:29 -0800 | [diff] [blame] | 4 | #include <linux/types.h> |
| 5 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6 | struct sockaddr_pkt |
| 7 | { |
| 8 | unsigned short spkt_family; |
| 9 | unsigned char spkt_device[14]; |
Al Viro | 0e11c91 | 2006-11-08 00:26:29 -0800 | [diff] [blame] | 10 | __be16 spkt_protocol; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 11 | }; |
| 12 | |
| 13 | struct sockaddr_ll |
| 14 | { |
| 15 | unsigned short sll_family; |
Al Viro | 0e11c91 | 2006-11-08 00:26:29 -0800 | [diff] [blame] | 16 | __be16 sll_protocol; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | int sll_ifindex; |
| 18 | unsigned short sll_hatype; |
| 19 | unsigned char sll_pkttype; |
| 20 | unsigned char sll_halen; |
| 21 | unsigned char sll_addr[8]; |
| 22 | }; |
| 23 | |
| 24 | /* Packet types */ |
| 25 | |
| 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 */ |
| 34 | |
| 35 | /* Packet socket options */ |
| 36 | |
| 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 |
Herbert Xu | 8dc4194 | 2007-02-04 23:31:32 -0800 | [diff] [blame] | 44 | #define PACKET_AUXDATA 8 |
Peter P. Waskiewicz Jr | 80feaac | 2007-04-20 16:05:39 -0700 | [diff] [blame] | 45 | #define PACKET_ORIGDEV 9 |
Patrick McHardy | bbd6ef8 | 2008-07-14 22:50:15 -0700 | [diff] [blame] | 46 | #define PACKET_VERSION 10 |
| 47 | #define PACKET_HDRLEN 11 |
Patrick McHardy | 8913336 | 2008-07-18 18:05:19 -0700 | [diff] [blame] | 48 | #define PACKET_RESERVE 12 |
Johann Baudy | 69e3c75 | 2009-05-18 22:11:22 -0700 | [diff] [blame] | 49 | #define PACKET_TX_RING 13 |
| 50 | #define PACKET_LOSS 14 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | |
| 52 | struct tpacket_stats |
| 53 | { |
| 54 | unsigned int tp_packets; |
| 55 | unsigned int tp_drops; |
| 56 | }; |
| 57 | |
Herbert Xu | 8dc4194 | 2007-02-04 23:31:32 -0800 | [diff] [blame] | 58 | struct tpacket_auxdata |
| 59 | { |
| 60 | __u32 tp_status; |
| 61 | __u32 tp_len; |
| 62 | __u32 tp_snaplen; |
| 63 | __u16 tp_mac; |
| 64 | __u16 tp_net; |
Patrick McHardy | 393e52e | 2008-07-14 22:50:39 -0700 | [diff] [blame] | 65 | __u16 tp_vlan_tci; |
Herbert Xu | 8dc4194 | 2007-02-04 23:31:32 -0800 | [diff] [blame] | 66 | }; |
| 67 | |
Johann Baudy | 69e3c75 | 2009-05-18 22:11:22 -0700 | [diff] [blame] | 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 |
| 74 | |
| 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 |
| 80 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 81 | struct tpacket_hdr |
| 82 | { |
| 83 | unsigned long tp_status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 84 | unsigned int tp_len; |
| 85 | unsigned int tp_snaplen; |
| 86 | unsigned short tp_mac; |
| 87 | unsigned short tp_net; |
| 88 | unsigned int tp_sec; |
| 89 | unsigned int tp_usec; |
| 90 | }; |
| 91 | |
| 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)) |
| 95 | |
Patrick McHardy | bbd6ef8 | 2008-07-14 22:50:15 -0700 | [diff] [blame] | 96 | struct tpacket2_hdr |
| 97 | { |
| 98 | __u32 tp_status; |
| 99 | __u32 tp_len; |
| 100 | __u32 tp_snaplen; |
| 101 | __u16 tp_mac; |
| 102 | __u16 tp_net; |
| 103 | __u32 tp_sec; |
| 104 | __u32 tp_nsec; |
Patrick McHardy | 393e52e | 2008-07-14 22:50:39 -0700 | [diff] [blame] | 105 | __u16 tp_vlan_tci; |
Patrick McHardy | bbd6ef8 | 2008-07-14 22:50:15 -0700 | [diff] [blame] | 106 | }; |
| 107 | |
| 108 | #define TPACKET2_HDRLEN (TPACKET_ALIGN(sizeof(struct tpacket2_hdr)) + sizeof(struct sockaddr_ll)) |
| 109 | |
| 110 | enum tpacket_versions |
| 111 | { |
| 112 | TPACKET_V1, |
| 113 | TPACKET_V2, |
| 114 | }; |
| 115 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 116 | /* |
| 117 | Frame structure: |
| 118 | |
| 119 | - Start. Frame must be aligned to TPACKET_ALIGNMENT=16 |
| 120 | - struct tpacket_hdr |
| 121 | - pad to TPACKET_ALIGNMENT=16 |
| 122 | - struct sockaddr_ll |
| 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 |
| 127 | */ |
| 128 | |
| 129 | struct tpacket_req |
| 130 | { |
| 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 */ |
| 135 | }; |
| 136 | |
| 137 | struct packet_mreq |
| 138 | { |
| 139 | int mr_ifindex; |
| 140 | unsigned short mr_type; |
| 141 | unsigned short mr_alen; |
| 142 | unsigned char mr_address[8]; |
| 143 | }; |
| 144 | |
| 145 | #define PACKET_MR_MULTICAST 0 |
| 146 | #define PACKET_MR_PROMISC 1 |
| 147 | #define PACKET_MR_ALLMULTI 2 |
Eric W. Biederman | d95ed92 | 2009-05-19 18:27:17 +0000 | [diff] [blame^] | 148 | #define PACKET_MR_UNICAST 3 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 149 | |
| 150 | #endif |