+struct kdp_ipovly {
+ uint32_t ih_next, ih_prev; /* for protocol sequence q's */
+ u_char ih_x1; /* (unused) */
+ u_char ih_pr; /* protocol */
+ short ih_len; /* protocol length */
+ struct kdp_in_addr ih_src; /* source internet address */
+ struct kdp_in_addr ih_dst; /* destination internet address */
+};
+
+struct kdp_udphdr {
+ u_short uh_sport; /* source port */
+ u_short uh_dport; /* destination port */
+ short uh_ulen; /* udp length */
+ u_short uh_sum; /* udp checksum */
+};
+
+struct kdp_udpiphdr {
+ struct kdp_ipovly ui_i; /* overlaid ip structure */
+ struct kdp_udphdr ui_u; /* udp header */
+};
+#define ui_next ui_i.ih_next
+#define ui_prev ui_i.ih_prev
+#define ui_x1 ui_i.ih_x1
+#define ui_pr ui_i.ih_pr
+#define ui_len ui_i.ih_len
+#define ui_src ui_i.ih_src
+#define ui_dst ui_i.ih_dst
+#define ui_sport ui_u.uh_sport
+#define ui_dport ui_u.uh_dport
+#define ui_ulen ui_u.uh_ulen
+#define ui_sum ui_u.uh_sum
+
+struct kdp_ip {
+ union {
+ uint32_t ip_w;
+ struct {
+ unsigned int
+#ifdef __LITTLE_ENDIAN__
+ ip_xhl:4, /* header length */
+ ip_xv:4, /* version */
+ ip_xtos:8, /* type of service */
+ ip_xlen:16; /* total length */
+#endif
+#ifdef __BIG_ENDIAN__
+ ip_xv:4, /* version */
+ ip_xhl:4, /* header length */
+ ip_xtos:8, /* type of service */
+ ip_xlen:16; /* total length */
+#endif
+ } ip_x;
+ } ip_vhltl;
+ u_short ip_id; /* identification */
+ short ip_off; /* fragment offset field */
+#define IP_DF 0x4000 /* dont fragment flag */
+#define IP_MF 0x2000 /* more fragments flag */
+#define IP_OFFMASK 0x1fff /* mask for fragmenting bits */
+ u_char ip_ttl; /* time to live */
+ u_char ip_p; /* protocol */
+ u_short ip_sum; /* checksum */
+ struct kdp_in_addr ip_src,ip_dst; /* source and dest address */
+};
+#define ip_v ip_vhltl.ip_x.ip_xv
+#define ip_hl ip_vhltl.ip_x.ip_xhl
+#define ip_tos ip_vhltl.ip_x.ip_xtos
+#define ip_len ip_vhltl.ip_x.ip_xlen
+
+#define IPPROTO_UDP 17
+#define IPVERSION 4
+
+#define ETHERTYPE_IP 0x0800 /* IP protocol */
+
+/*
+ * Ethernet Address Resolution Protocol.
+ *
+ * See RFC 826 for protocol description. Structure below is adapted
+ * to resolving internet addresses. Field names used correspond to
+ * RFC 826.
+ */
+
+#define ETHERTYPE_ARP 0x0806 /* Addr. resolution protocol */
+
+struct kdp_arphdr {
+ u_short ar_hrd; /* format of hardware address */
+#define ARPHRD_ETHER 1 /* ethernet hardware format */
+#define ARPHRD_FRELAY 15 /* frame relay hardware format */
+ u_short ar_pro; /* format of protocol address */
+ u_char ar_hln; /* length of hardware address */
+ u_char ar_pln; /* length of protocol address */
+ u_short ar_op; /* one of: */
+#define ARPOP_REQUEST 1 /* request to resolve address */
+#define ARPOP_REPLY 2 /* response to previous request */
+#define ARPOP_REVREQUEST 3 /* request protocol address given hardware */
+#define ARPOP_REVREPLY 4 /* response giving protocol address */
+#define ARPOP_INVREQUEST 8 /* request to identify peer */
+#define ARPOP_INVREPLY 9 /* response identifying peer */
+};
+
+struct kdp_ether_arp {
+ struct kdp_arphdr ea_hdr; /* fixed-size header */
+ u_char arp_sha[ETHER_ADDR_LEN]; /* sender hardware address */
+ u_char arp_spa[4]; /* sender protocol address */
+ u_char arp_tha[ETHER_ADDR_LEN]; /* target hardware address */
+ u_char arp_tpa[4]; /* target protocol address */
+};
+#define arp_hrd ea_hdr.ar_hrd
+#define arp_pro ea_hdr.ar_pro
+#define arp_hln ea_hdr.ar_hln
+#define arp_pln ea_hdr.ar_pln
+#define arp_op ea_hdr.ar_op
+
+#define ETHERMTU 1500
+#define ETHERHDRSIZE 14
+#define ETHERCRC 4
+#define KDP_MAXPACKET (ETHERHDRSIZE + ETHERMTU + ETHERCRC)
+
projects / apple / xnu.git / blobdiff