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/* Taken from Linux kernel, GPL, version 2.0 */
#define ETH_ALEN 6 /* Octets in one ethernet addr */
#define ETH_HLEN 14 /* Total octets in header. */
#define ETH_ZLEN 60 /* Min. octets in frame sans FCS */
#define ETH_DATA_LEN 1500 /* Max. octets in payload */
#define ETH_FRAME_LEN 1514 /* Max. octets in frame sans FCS */
#define ETH_FCS_LEN 4 /* Octets in the FCS */
#define ETH_SRC_RAND drnd(ETH_ALEN)
#define ETH_DST_RAND drnd(ETH_ALEN)
#define ETH_P_LOOP 0x0060 /* Ethernet Loopback packet */
#define ETH_P_PUP 0x0200 /* Xerox PUP packet */
#define ETH_P_PUPAT 0x0201 /* Xerox PUP Addr Trans packet */
#define ETH_P_IP 0x0800 /* Internet Protocol packet */
#define ETH_P_X25 0x0805 /* CCITT X.25 */
#define ETH_P_ARP 0x0806 /* Address Resolution packet */
#define ETH_P_BPQ 0x08FF /* G8BPQ AX.25 Ethernet Packet [ NOT AN OFFICIALLY REGISTERED ID ] */
#define ETH_P_IEEEPUP 0x0a00 /* Xerox IEEE802.3 PUP packet */
#define ETH_P_IEEEPUPAT 0x0a01 /* Xerox IEEE802.3 PUP Addr Trans packet */
#define ETH_P_BATMAN 0x4305 /* B.A.T.M.A.N.-Advanced packet [ NOT AN OFFICIALLY REGISTERED ID ] */
#define ETH_P_DEC 0x6000 /* DEC Assigned proto */
#define ETH_P_DNA_DL 0x6001 /* DEC DNA Dump/Load */
#define ETH_P_DNA_RC 0x6002 /* DEC DNA Remote Console */
#define ETH_P_DNA_RT 0x6003 /* DEC DNA Routing */
#define ETH_P_LAT 0x6004 /* DEC LAT */
#define ETH_P_DIAG 0x6005 /* DEC Diagnostics */
#define ETH_P_CUST 0x6006 /* DEC Customer use */
#define ETH_P_SCA 0x6007 /* DEC Systems Comms Arch */
#define ETH_P_TEB 0x6558 /* Trans Ether Bridging */
#define ETH_P_RARP 0x8035 /* Reverse Addr Res packet */
#define ETH_P_ATALK 0x809B /* Appletalk DDP */
#define ETH_P_AARP 0x80F3 /* Appletalk AARP */
#define ETH_P_8021Q 0x8100 /* 802.1Q VLAN Extended Header */
#define ETH_P_IPX 0x8137 /* IPX over DIX */
#define ETH_P_IPV6 0x86DD /* IPv6 over bluebook */
#define ETH_P_PAUSE 0x8808 /* IEEE Pause frames. See 802.3 31B */
#define ETH_P_SLOW 0x8809 /* Slow Protocol. See 802.3ad 43B */
#define ETH_P_WCCP 0x883E /* Web-cache coordination protocol defined in draft-wilson-wrec-wccp-v2-00.txt */
#define ETH_P_PPP_DISC 0x8863 /* PPPoE discovery messages */
#define ETH_P_PPP_SES 0x8864 /* PPPoE session messages */
#define ETH_P_MPLS_UC 0x8847 /* MPLS Unicast traffic */
#define ETH_P_MPLS_MC 0x8848 /* MPLS Multicast traffic */
#define ETH_P_ATMMPOA 0x884c /* MultiProtocol Over ATM */
#define ETH_P_LINK_CTL 0x886c /* HPNA, wlan link local tunnel */
#define ETH_P_ATMFATE 0x8884 /* Frame-based ATM Transport over Ethernet */
#define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
#define ETH_P_AOE 0x88A2 /* ATA over Ethernet */
#define ETH_P_8021AD 0x88A8 /* 802.1ad Service VLAN */
#define ETH_P_802_EX1 0x88B5 /* 802.1 Local Experimental 1. */
#define ETH_P_TIPC 0x88CA /* TIPC */
#define ETH_P_8021AH 0x88E7 /* 802.1ah Backbone Service Tag */
#define ETH_P_1588 0x88F7 /* IEEE 1588 Timesync */
#define ETH_P_FCOE 0x8906 /* Fibre Channel over Ethernet */
#define ETH_P_TDLS 0x890D /* TDLS */
#define ETH_P_FIP 0x8914 /* FCoE Initialization Protocol */
#define ETH_P_QINQ1 0x9100 /* deprecated QinQ VLAN [ NOT AN OFFICIALLY REGISTERED ID ] */
#define ETH_P_QINQ2 0x9200 /* deprecated QinQ VLAN [ NOT AN OFFICIALLY REGISTERED ID ] */
#define ETH_P_QINQ3 0x9300 /* deprecated QinQ VLAN [ NOT AN OFFICIALLY REGISTERED ID ] */
#define ETH_P_EDSA 0xDADA /* Ethertype DSA [ NOT AN OFFICIALLY REGISTERED ID ] */
#define ETH_P_AF_IUCV 0xFBFB /* IBM af_iucv [ NOT AN OFFICIALLY REGISTERED ID ] */
#define ETH_P_802_3 0x0001 /* Dummy type for 802.3 frames */
#define ETH_P_AX25 0x0002 /* Dummy protocol id for AX.25 */
#define ETH_P_802_2 0x0004 /* 802.2 frames */
#define ETH_P_SNAP 0x0005 /* Internal only */
#define ETH_P_DDCMP 0x0006 /* DEC DDCMP: Internal only */
#define ETH_P_WAN_PPP 0x0007 /* Dummy type for WAN PPP frames*/
#define ETH_P_PPP_MP 0x0008 /* Dummy type for PPP MP frames */
#define ETH_P_LOCALTALK 0x0009 /* Localtalk pseudo type */
#define ETH_P_CAN 0x000C /* CAN: Controller Area Network */
#define ETH_P_CANFD 0x000D /* CANFD: CAN flexible data rate */
#define ETH_P_PPPTALK 0x0010 /* Dummy type for Atalk over PPP */
#define ETH_P_TR_802_2 0x0011 /* 802.2 frames */
#define ETH_P_MOBITEX 0x0015 /* Mobitex (kaz@cafe.net) */
#define ETH_P_CONTROL 0x0016 /* Card specific control frames */
#define ETH_P_IRDA 0x0017 /* Linux-IrDA */
#define ETH_P_ECONET 0x0018 /* Acorn Econet */
#define ETH_P_HDLC 0x0019 /* HDLC frames */
#define ETH_P_ARCNET 0x001A /* 1A for ArcNet :-) */
#define ETH_P_DSA 0x001B /* Distributed Switch Arch. */
#define ETH_P_TRAILER 0x001C /* Trailer switch tagging */
#define ETH_P_PHONET 0x00F5 /* Nokia Phonet frames */
#define ETH_P_IEEE802154 0x00F6 /* IEEE802.15.4 frames */
#define ETH_P_CAIF 0x00F7 /* ST-Ericsson CAIF protocol */
#define INADDR_BROADCAST 0xffffffff /* 255.255.255.255 */
#define INADDR_LOOPBACK 0x7f000001 /* 127.0.0.1 */
#define INADDR_UNSPEC_GROUP 0xe0000000 /* 224.0.0.0 */
#define INADDR_ALLHOSTS_GROUP 0xe0000001 /* 224.0.0.1 */
#define INADDR_ALLRTRS_GROUP 0xe0000002 /* 224.0.0.2 */
#define INADDR_MAX_LOCAL_GROUP 0xe00000ff /* 224.0.0.255 */
#define IPPROTO_ICMP 1 /* Internet Control Message Protocol */
#define IPPROTO_IGMP 2 /* Internet Group Management Protocol */
#define IPPROTO_IPIP 4 /* IPIP tunnels (older KA9Q tunnels use 94) */
#define IPPROTO_TCP 6 /* Transmission Control Protocol */
#define IPPROTO_EGP 8 /* Exterior Gateway Protocol */
#define IPPROTO_PUP 12 /* PUP protocol */
#define IPPROTO_UDP 17 /* User Datagram Protocol */
#define IPPROTO_IDP 22 /* XNS IDP protocol */
#define IPPROTO_DCCP 33 /* Datagram Congestion Control Protocol */
#define IPPROTO_RSVP 46 /* RSVP protocol */
#define IPPROTO_GRE 47 /* Cisco GRE tunnels (rfc 1701,1702) */
#define IPPROTO_IPV6 41 /* IPv6-in-IPv4 tunnelling */
#define IPPROTO_ESP 50 /* Encapsulation Security Payload protocol */
#define IPPROTO_AH 51 /* Authentication Header protocol */
#define IPPROTO_BEETPH 94 /* IP option pseudo header for BEET */
#define IPPROTO_PIM 103 /* Protocol Independent Multicast */
#define IPPROTO_COMP 108 /* Compression Header protocol */
#define IPPROTO_SCTP 132 /* Stream Control Transport Protocol */
#define IPPROTO_UDPLITE 136 /* UDP-Lite (RFC 3828) */
#define IP_ALEN 4
#define IP_VERSION 4
#define IP_TTL_DEFAULT 64
#define IP_HDR_OFF_DEFAULT 14
#define IP_SRC_RAND drnd(IP_ALEN)
#define IP_DST_RAND drnd(IP_ALEN)
#define IP_ID_RAND drnd(2)
#define IP_CSUM_DEFAULT csumip(IP_HDR_OFF_DEFAULT, 33) /* IP-hdr offset from, to */
#define ICMP_ECHOREPLY 0 /* Echo Reply */
#define ICMP_DEST_UNREACH 3 /* Destination Unreachable */
#define ICMP_SOURCE_QUENCH 4 /* Source Quench */
#define ICMP_REDIRECT 5 /* Redirect (change route) */
#define ICMP_ECHO 8 /* Echo Request */
#define ICMP_TIME_EXCEEDED 11 /* Time Exceeded */
#define ICMP_PARAMETERPROB 12 /* Parameter Problem */
#define ICMP_TIMESTAMP 13 /* Timestamp Request */
#define ICMP_TIMESTAMPREPLY 14 /* Timestamp Reply */
#define ICMP_INFO_REQUEST 15 /* Information Request */
#define ICMP_INFO_REPLY 16 /* Information Reply */
#define ICMP_ADDRESS 17 /* Address Mask Request */
#define ICMP_ADDRESSREPLY 18 /* Address Mask Reply */
/* Codes for UNREACH. */
#define ICMP_NET_UNREACH 0 /* Network Unreachable */
#define ICMP_HOST_UNREACH 1 /* Host Unreachable */
#define ICMP_PROT_UNREACH 2 /* Protocol Unreachable */
#define ICMP_PORT_UNREACH 3 /* Port Unreachable */
#define ICMP_FRAG_NEEDED 4 /* Fragmentation Needed/DF set */
#define ICMP_SR_FAILED 5 /* Source Route failed */
#define ICMP_NET_UNKNOWN 6
#define ICMP_HOST_UNKNOWN 7
#define ICMP_HOST_ISOLATED 8
#define ICMP_NET_ANO 9
#define ICMP_HOST_ANO 10
#define ICMP_NET_UNR_TOS 11
#define ICMP_HOST_UNR_TOS 12
#define ICMP_PKT_FILTERED 13 /* Packet filtered */
#define ICMP_PREC_VIOLATION 14 /* Precedence violation */
#define ICMP_PREC_CUTOFF 15 /* Precedence cut off */
#define NR_ICMP_UNREACH 15 /* instead of hardcoding immediate value */
/* Codes for REDIRECT. */
#define ICMP_REDIR_NET 0 /* Redirect Net */
#define ICMP_REDIR_HOST 1 /* Redirect Host */
#define ICMP_REDIR_NETTOS 2 /* Redirect Net for TOS */
#define ICMP_REDIR_HOSTTOS 3 /* Redirect Host for TOS */
/* Codes for TIME_EXCEEDED. */
#define ICMP_EXC_TTL 0 /* TTL count exceeded */
#define ICMP_EXC_FRAGTIME 1 /* Fragment Reass time exceeded */
#define TCP_SEQ_RAND drnd(4)
#define TCP_ACK_RAND drnd(4)
#define TCP_SRC_RAND drnd(2)
#define TCP_DST_RAND drnd(2)
#define TCP_CSUM_DEFAULT csumtcp(IP_HDR_OFF_DEFAULT, 34) /* Offset IP, offset TCP */
#define TCP_FLAG_CWR (1 << 7)
#define TCP_FLAG_ECE (1 << 6)
#define TCP_FLAG_URG (1 << 5)
#define TCP_FLAG_ACK (1 << 4)
#define TCP_FLAG_PSH (1 << 3)
#define TCP_FLAG_RST (1 << 2)
#define TCP_FLAG_SYN (1 << 1)
#define TCP_FLAG_FIN (1 << 0)
#define TCP_RESERVED_BITS 0x0F00
#define TCP_DATA_OFFSET 0xF000
/* Misc things */
#define JOIN(x, y) x ## y
#define IF_0(x)
#define IF_1(x) x
#define IF(bit, x) JOIN(IF_, bit)(x)
#define IF_ELSE_0(x, y) y
#define IF_ELSE_1(x, y) x
#define IF_ELSE(bit, x, y) JOIN(IF_ELSE_, bit)(x, y)
#define be16(x) c16(x)
#define be32(x) c32(x)
#define be64(x) c64(x)
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