1 /* 2 * This header was generated from the Linux kernel headers by update_headers.py, 3 * to provide necessary information from kernel to userspace, such as constants, 4 * structures, and macros, and thus, contains no copyrightable information. 5 */ 6 #ifndef __LINUX_IF_PACKET_H 7 #define __LINUX_IF_PACKET_H 8 #include <linux/types.h> 9 struct sockaddr_pkt { 10 unsigned short spkt_family; 11 unsigned char spkt_device[14]; 12 __be16 spkt_protocol; 13 }; 14 struct sockaddr_ll { 15 unsigned short sll_family; 16 __be16 sll_protocol; 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 #define PACKET_HOST 0 24 #define PACKET_BROADCAST 1 25 #define PACKET_MULTICAST 2 26 #define PACKET_OTHERHOST 3 27 #define PACKET_OUTGOING 4 28 #define PACKET_LOOPBACK 5 29 #define PACKET_USER 6 30 #define PACKET_KERNEL 7 31 #define PACKET_FASTROUTE 6 32 #define PACKET_ADD_MEMBERSHIP 1 33 #define PACKET_DROP_MEMBERSHIP 2 34 #define PACKET_RECV_OUTPUT 3 35 #define PACKET_RX_RING 5 36 #define PACKET_STATISTICS 6 37 #define PACKET_COPY_THRESH 7 38 #define PACKET_AUXDATA 8 39 #define PACKET_ORIGDEV 9 40 #define PACKET_VERSION 10 41 #define PACKET_HDRLEN 11 42 #define PACKET_RESERVE 12 43 #define PACKET_TX_RING 13 44 #define PACKET_LOSS 14 45 #define PACKET_VNET_HDR 15 46 #define PACKET_TX_TIMESTAMP 16 47 #define PACKET_TIMESTAMP 17 48 #define PACKET_FANOUT 18 49 #define PACKET_TX_HAS_OFF 19 50 #define PACKET_QDISC_BYPASS 20 51 #define PACKET_ROLLOVER_STATS 21 52 #define PACKET_FANOUT_DATA 22 53 #define PACKET_FANOUT_HASH 0 54 #define PACKET_FANOUT_LB 1 55 #define PACKET_FANOUT_CPU 2 56 #define PACKET_FANOUT_ROLLOVER 3 57 #define PACKET_FANOUT_RND 4 58 #define PACKET_FANOUT_QM 5 59 #define PACKET_FANOUT_CBPF 6 60 #define PACKET_FANOUT_EBPF 7 61 #define PACKET_FANOUT_FLAG_ROLLOVER 0x1000 62 #define PACKET_FANOUT_FLAG_UNIQUEID 0x2000 63 #define PACKET_FANOUT_FLAG_DEFRAG 0x8000 64 struct tpacket_stats { 65 unsigned int tp_packets; 66 unsigned int tp_drops; 67 }; 68 struct tpacket_stats_v3 { 69 unsigned int tp_packets; 70 unsigned int tp_drops; 71 unsigned int tp_freeze_q_cnt; 72 }; 73 struct tpacket_rollover_stats { 74 __aligned_u64 tp_all; 75 __aligned_u64 tp_huge; 76 __aligned_u64 tp_failed; 77 }; 78 union tpacket_stats_u { 79 struct tpacket_stats stats1; 80 struct tpacket_stats_v3 stats3; 81 }; 82 struct tpacket_auxdata { 83 __u32 tp_status; 84 __u32 tp_len; 85 __u32 tp_snaplen; 86 __u16 tp_mac; 87 __u16 tp_net; 88 __u16 tp_vlan_tci; 89 __u16 tp_vlan_tpid; 90 }; 91 #define TP_STATUS_KERNEL 0 92 #define TP_STATUS_USER (1 << 0) 93 #define TP_STATUS_COPY (1 << 1) 94 #define TP_STATUS_LOSING (1 << 2) 95 #define TP_STATUS_CSUMNOTREADY (1 << 3) 96 #define TP_STATUS_VLAN_VALID (1 << 4) 97 #define TP_STATUS_BLK_TMO (1 << 5) 98 #define TP_STATUS_VLAN_TPID_VALID (1 << 6) 99 #define TP_STATUS_CSUM_VALID (1 << 7) 100 #define TP_STATUS_AVAILABLE 0 101 #define TP_STATUS_SEND_REQUEST (1 << 0) 102 #define TP_STATUS_SENDING (1 << 1) 103 #define TP_STATUS_WRONG_FORMAT (1 << 2) 104 #define TP_STATUS_TS_SOFTWARE (1 << 29) 105 #define TP_STATUS_TS_SYS_HARDWARE (1 << 30) 106 #define TP_STATUS_TS_RAW_HARDWARE (1 << 31) 107 #define TP_FT_REQ_FILL_RXHASH 0x1 108 struct tpacket_hdr { 109 unsigned long tp_status; 110 unsigned int tp_len; 111 unsigned int tp_snaplen; 112 unsigned short tp_mac; 113 unsigned short tp_net; 114 unsigned int tp_sec; 115 unsigned int tp_usec; 116 }; 117 #define TPACKET_ALIGNMENT 16 118 #define TPACKET_ALIGN(x) (((x)+TPACKET_ALIGNMENT-1)&~(TPACKET_ALIGNMENT-1)) 119 #define TPACKET_HDRLEN (TPACKET_ALIGN(sizeof(struct tpacket_hdr)) + sizeof(struct sockaddr_ll)) 120 struct tpacket2_hdr { 121 __u32 tp_status; 122 __u32 tp_len; 123 __u32 tp_snaplen; 124 __u16 tp_mac; 125 __u16 tp_net; 126 __u32 tp_sec; 127 __u32 tp_nsec; 128 __u16 tp_vlan_tci; 129 __u16 tp_vlan_tpid; 130 __u8 tp_padding[4]; 131 }; 132 struct tpacket_hdr_variant1 { 133 __u32 tp_rxhash; 134 __u32 tp_vlan_tci; 135 __u16 tp_vlan_tpid; 136 __u16 tp_padding; 137 }; 138 struct tpacket3_hdr { 139 __u32 tp_next_offset; 140 __u32 tp_sec; 141 __u32 tp_nsec; 142 __u32 tp_snaplen; 143 __u32 tp_len; 144 __u32 tp_status; 145 __u16 tp_mac; 146 __u16 tp_net; 147 148 union { 149 struct tpacket_hdr_variant1 hv1; 150 }; 151 __u8 tp_padding[8]; 152 }; 153 struct tpacket_bd_ts { 154 unsigned int ts_sec; 155 union { 156 unsigned int ts_usec; 157 unsigned int ts_nsec; 158 }; 159 }; 160 struct tpacket_hdr_v1 { 161 __u32 block_status; 162 __u32 num_pkts; 163 __u32 offset_to_first_pkt; 164 165 __u32 blk_len; 166 167 __aligned_u64 seq_num; 168 169 struct tpacket_bd_ts ts_first_pkt, ts_last_pkt; 170 }; 171 union tpacket_bd_header_u { 172 struct tpacket_hdr_v1 bh1; 173 }; 174 struct tpacket_block_desc { 175 __u32 version; 176 __u32 offset_to_priv; 177 union tpacket_bd_header_u hdr; 178 }; 179 #define TPACKET2_HDRLEN (TPACKET_ALIGN(sizeof(struct tpacket2_hdr)) + sizeof(struct sockaddr_ll)) 180 #define TPACKET3_HDRLEN (TPACKET_ALIGN(sizeof(struct tpacket3_hdr)) + sizeof(struct sockaddr_ll)) 181 enum tpacket_versions { 182 TPACKET_V1, 183 TPACKET_V2, 184 TPACKET_V3 185 }; 186 struct tpacket_req { 187 unsigned int tp_block_size; 188 unsigned int tp_block_nr; 189 unsigned int tp_frame_size; 190 unsigned int tp_frame_nr; 191 }; 192 struct tpacket_req3 { 193 unsigned int tp_block_size; 194 unsigned int tp_block_nr; 195 unsigned int tp_frame_size; 196 unsigned int tp_frame_nr; 197 unsigned int tp_retire_blk_tov; 198 unsigned int tp_sizeof_priv; 199 unsigned int tp_feature_req_word; 200 }; 201 union tpacket_req_u { 202 struct tpacket_req req; 203 struct tpacket_req3 req3; 204 }; 205 struct packet_mreq { 206 int mr_ifindex; 207 unsigned short mr_type; 208 unsigned short mr_alen; 209 unsigned char mr_address[8]; 210 }; 211 #define PACKET_MR_MULTICAST 0 212 #define PACKET_MR_PROMISC 1 213 #define PACKET_MR_ALLMULTI 2 214 #define PACKET_MR_UNICAST 3 215 #endif 216