190 lines
4.6 KiB
C
190 lines
4.6 KiB
C
/*
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ip_int.h
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Copyright 1995 Philip Homburg
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*/
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#ifndef INET_IP_INT_H
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#define INET_IP_INT_H
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#define IP_FD_NR (8*IP_PORT_MAX)
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#define IP_ASS_NR 3
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#define IP_42BSD_BCAST 1 /* hostnumber 0 is also network
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broadcast */
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#define IP_LT_NORMAL 0 /* Normal */
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#define IP_LT_BROADCAST 1 /* Broadcast */
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#define IP_LT_MULTICAST 2 /* Multicast */
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struct ip_port;
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struct ip_fd;
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typedef void (*ip_dev_t) ARGS(( struct ip_port *ip_port ));
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typedef int (*ip_dev_send_t) ARGS(( struct ip_port *ip_port, ipaddr_t dest,
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acc_t *pack, int type ));
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#define IP_PROTO_HASH_NR 32
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typedef struct ip_port
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{
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int ip_flags, ip_dl_type;
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int ip_port;
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union
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{
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struct
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{
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int de_state;
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int de_flags;
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int de_port;
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int de_fd;
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acc_t *de_frame;
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acc_t *de_q_head;
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acc_t *de_q_tail;
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acc_t *de_arp_head;
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acc_t *de_arp_tail;
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} dl_eth;
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struct
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{
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int ps_port;
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acc_t *ps_send_head;
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acc_t *ps_send_tail;
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} dl_ps;
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} ip_dl;
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ipaddr_t ip_ipaddr;
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ipaddr_t ip_subnetmask;
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ipaddr_t ip_classfulmask;
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u16_t ip_frame_id;
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u16_t ip_mtu;
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u16_t ip_mtu_max; /* Max MTU for this kind of network */
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ip_dev_t ip_dev_main;
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ip_dev_t ip_dev_set_ipaddr;
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ip_dev_send_t ip_dev_send;
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acc_t *ip_loopb_head;
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acc_t *ip_loopb_tail;
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event_t ip_loopb_event;
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acc_t *ip_routeq_head;
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acc_t *ip_routeq_tail;
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event_t ip_routeq_event;
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struct ip_fd *ip_proto_any;
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struct ip_fd *ip_proto[IP_PROTO_HASH_NR];
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} ip_port_t;
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#define IES_EMPTY 0x0
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#define IES_SETPROTO 0x1
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#define IES_GETIPADDR 0x2
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#define IES_MAIN 0x3
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#define IES_ERROR 0x4
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#define IEF_EMPTY 0x1
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#define IEF_SUSPEND 0x8
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#define IEF_READ_IP 0x10
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#define IEF_READ_SP 0x20
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#define IEF_WRITE_SP 0x80
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#define IPF_EMPTY 0x0
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#define IPF_CONFIGURED 0x1
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#define IPF_IPADDRSET 0x2
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#define IPF_NETMASKSET 0x4
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#define IPF_SUBNET_BCAST 0x8 /* Subset support subnet broadcasts */
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#define IPDL_ETH NETTYPE_ETH
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#define IPDL_PSIP NETTYPE_PSIP
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typedef struct ip_ass
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{
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acc_t *ia_frags;
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int ia_min_ttl;
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ip_port_t *ia_port;
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time_t ia_first_time;
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ipaddr_t ia_srcaddr, ia_dstaddr;
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int ia_proto, ia_id;
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} ip_ass_t;
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typedef struct ip_fd
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{
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int if_flags;
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struct nwio_ipopt if_ipopt;
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ip_port_t *if_port;
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struct ip_fd *if_proto_next;
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int if_srfd;
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acc_t *if_rdbuf_head;
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acc_t *if_rdbuf_tail;
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get_userdata_t if_get_userdata;
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put_userdata_t if_put_userdata;
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put_pkt_t if_put_pkt;
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time_t if_exp_time;
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size_t if_rd_count;
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ioreq_t if_ioctl;
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} ip_fd_t;
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#define IFF_EMPTY 0x00
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#define IFF_INUSE 0x01
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#define IFF_OPTSET 0x02
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#define IFF_BUSY 0x1C
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# define IFF_READ_IP 0x04
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# define IFF_IOCTL_IP 0x08
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typedef enum nettype
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{
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IPNT_ZERO, /* 0.xx.xx.xx */
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IPNT_CLASS_A, /* 1.xx.xx.xx .. 126.xx.xx.xx */
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IPNT_LOCAL, /* 127.xx.xx.xx */
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IPNT_CLASS_B, /* 128.xx.xx.xx .. 191.xx.xx.xx */
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IPNT_CLASS_C, /* 192.xx.xx.xx .. 223.xx.xx.xx */
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IPNT_CLASS_D, /* 224.xx.xx.xx .. 239.xx.xx.xx */
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IPNT_CLASS_E, /* 240.xx.xx.xx .. 247.xx.xx.xx */
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IPNT_MARTIAN, /* 248.xx.xx.xx .. 254.xx.xx.xx + others */
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IPNT_BROADCAST /* 255.255.255.255 */
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} nettype_t;
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struct nwio_ipconf;
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/* ip_eth.c */
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int ipeth_init ARGS(( ip_port_t *ip_port ));
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/* ip_ioctl.c */
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void ip_hash_proto ARGS(( ip_fd_t *ip_fd ));
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void ip_unhash_proto ARGS(( ip_fd_t *ip_fd ));
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int ip_setconf ARGS(( int ip_port, struct nwio_ipconf *ipconfp ));
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/* ip_lib.c */
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ipaddr_t ip_get_netmask ARGS(( ipaddr_t hostaddr ));
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ipaddr_t ip_get_ifaddr ARGS(( int ip_port_nr ));
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int ip_chk_hdropt ARGS(( u8_t *opt, int optlen ));
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void ip_print_frags ARGS(( acc_t *acc ));
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nettype_t ip_nettype ARGS(( ipaddr_t ipaddr ));
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ipaddr_t ip_netmask ARGS(( nettype_t nettype ));
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char *ip_nettoa ARGS(( nettype_t nettype ));
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/* ip_ps.c */
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int ipps_init ARGS(( ip_port_t *ip_port ));
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void ipps_get ARGS(( int ip_port_nr ));
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void ipps_put ARGS(( int ip_port_nr, ipaddr_t nexthop, acc_t *pack ));
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/* ip_read.c */
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void ip_port_arrive ARGS(( ip_port_t *port, acc_t *pack, ip_hdr_t *ip_hdr ));
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void ip_arrived ARGS(( ip_port_t *port, acc_t *pack ));
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void ip_arrived_broadcast ARGS(( ip_port_t *port, acc_t *pack ));
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void ip_process_loopb ARGS(( event_t *ev, ev_arg_t arg ));
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void ip_packet2user ARGS(( ip_fd_t *ip_fd, acc_t *pack, time_t exp_time,
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size_t data_len ));
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/* ip_write.c */
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void dll_eth_write_frame ARGS(( ip_port_t *port ));
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acc_t *ip_split_pack ARGS(( ip_port_t *ip_port, acc_t **ref_last, int mtu ));
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void ip_hdr_chksum ARGS(( ip_hdr_t *ip_hdr, int ip_hdr_len ));
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extern ip_fd_t ip_fd_table[IP_FD_NR];
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extern ip_port_t *ip_port_table;
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extern ip_ass_t ip_ass_table[IP_ASS_NR];
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#define NWIO_DEFAULT (NWIO_EN_LOC | NWIO_EN_BROAD | NWIO_REMANY | \
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NWIO_RWDATALL | NWIO_HDR_O_SPEC)
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#endif /* INET_IP_INT_H */
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/*
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* $PchId: ip_int.h,v 1.19 2004/08/03 16:24:23 philip Exp $
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*/
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