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0038001 /*
0038002 ip_int.h
0038003
0038004 Copyright 1995 Philip Homburg
0038005 */
0038006
0038007 #ifndef INET_IP_INT_H
0038008 #define INET_IP_INT_H
0038009
0038010 #define IP_FD_NR (8*IP_PORT_MAX)
0038011 #define IP_ASS_NR 3
0038012
0038013 #define IP_42BSD_BCAST 1 /* hostnumber 0 is also network
0038014 broadcast */
0038015
0038016 struct ip_port;
0038017 struct ip_fd;
0038018 typedef void (*ip_dev_t) ARGS(( struct ip_port *ip_port ));
0038019 typedef int (*ip_dev_send_t) ARGS(( struct ip_port *ip_port, ipaddr_t dest,
0038020 acc_t *pack, int broadcast ));
0038021
0038022 #define IP_PROTO_HASH_NR 32
0038023
0038024 typedef struct ip_port
0038025 {
0038026 int ip_flags, ip_dl_type;
0038027 int ip_port;
0038028 union
0038029 {
0038030 struct
0038031 {
0038032 int de_state;
0038033 int de_flags;
0038034 int de_port;
0038035 int de_fd;
0038036 acc_t *de_frame;
0038037 acc_t *de_q_head;
0038038 acc_t *de_q_tail;
0038039 acc_t *de_arp_head;
0038040 acc_t *de_arp_tail;
0038041 } dl_eth;
0038042 struct
0038043 {
0038044 int ps_port;
0038045 acc_t *ps_send_head;
0038046 acc_t *ps_send_tail;
0038047 } dl_ps;
0038048 } ip_dl;
0038049 ipaddr_t ip_ipaddr;
0038050 ipaddr_t ip_netmask;
0038051 ipaddr_t ip_subnetmask;
0038052 u16_t ip_frame_id;
0038053 u16_t ip_mss;
0038054 ip_dev_t ip_dev_main;
0038055 ip_dev_t ip_dev_set_ipaddr;
0038056 ip_dev_send_t ip_dev_send;
0038057 acc_t *ip_loopb_head;
0038058 acc_t *ip_loopb_tail;
0038059 event_t ip_loopb_event;
0038060 struct ip_fd *ip_proto_any;
0038061 struct ip_fd *ip_proto[IP_PROTO_HASH_NR];
0038062 } ip_port_t;
0038063
0038064 #define IES_EMPTY 0x0
0038065 #define IES_SETPROTO 0x1
0038066 #define IES_GETIPADDR 0x2
0038067 #define IES_MAIN 0x3
0038068 #define IES_ERROR 0x4
0038069
0038070 #define IEF_EMPTY 0x1
0038071 #define IEF_SUSPEND 0x8
0038072 #define IEF_READ_IP 0x10
0038073 #define IEF_READ_SP 0x20
0038074 #define IEF_WRITE_SP 0x80
0038075
0038076 #define IPF_EMPTY 0x0
0038077 #define IPF_CONFIGURED 0x1
0038078 #define IPF_IPADDRSET 0x2
0038079 #define IPF_NETMASKSET 0x4
0038080
0038081 #define IPDL_ETH NETTYPE_ETH
0038082 #define IPDL_PSIP NETTYPE_PSIP
0038083
0038084 typedef struct ip_ass
0038085 {
0038086 acc_t *ia_frags;
0038087 int ia_min_ttl;
0038088 ip_port_t *ia_port;
0038089 time_t ia_first_time;
0038090 ipaddr_t ia_srcaddr, ia_dstaddr;
0038091 int ia_proto, ia_id;
0038092 } ip_ass_t;
0038093
0038094 typedef struct ip_fd
0038095 {
0038096 int if_flags;
0038097 struct nwio_ipopt if_ipopt;
0038098 ip_port_t *if_port;
0038099 struct ip_fd *if_proto_next;
0038100 int if_srfd;
0038101 acc_t *if_rdbuf_head;
0038102 acc_t *if_rdbuf_tail;
0038103 get_userdata_t if_get_userdata;
0038104 put_userdata_t if_put_userdata;
0038105 put_pkt_t if_put_pkt;
0038106 time_t if_exp_time;
0038107 size_t if_rd_count;
0038108 } ip_fd_t;
0038109
0038110 #define IFF_EMPTY 0x0
0038111 #define IFF_INUSE 0x1
0038112 #define IFF_OPTSET 0x2
0038113 #define IFF_BUSY 0xC
0038114 # define IFF_READ_IP 0x4
0038115 # define IFF_GIPCONF_IP 0x8
0038116
0038117 typedef enum nettype
0038118 {
0038119 IPNT_ZERO, /* 0.xx.xx.xx */
0038120 IPNT_CLASS_A, /* 1.xx.xx.xx .. 126.xx.xx.xx */
0038121 IPNT_LOCAL, /* 127.xx.xx.xx */
0038122 IPNT_CLASS_B, /* 128.xx.xx.xx .. 191.xx.xx.xx */
0038123 IPNT_CLASS_C, /* 192.xx.xx.xx .. 223.xx.xx.xx */
0038124 IPNT_CLASS_D, /* 224.xx.xx.xx .. 239.xx.xx.xx */
0038125 IPNT_CLASS_E, /* 240.xx.xx.xx .. 247.xx.xx.xx */
0038126 IPNT_MARTIAN, /* 248.xx.xx.xx .. 254.xx.xx.xx + others */
0038127 IPNT_BROADCAST /* 255.255.255.255 */
0038128 } nettype_t;
0038129
0038130 /* ip_eth.c */
0038131 int ipeth_init ARGS(( ip_port_t *ip_port ));
0038132
0038133 /* ip_ioctl.c */
0038134 void ip_hash_proto ARGS(( ip_fd_t *ip_fd ));
0038135 void ip_unhash_proto ARGS(( ip_fd_t *ip_fd ));
0038136
0038137 /* ip_lib.c */
0038138 ipaddr_t ip_get_netmask ARGS(( ipaddr_t hostaddr ));
0038139 ipaddr_t ip_get_ifaddr ARGS(( int ip_port_nr ));
0038140 int ip_chk_hdropt ARGS(( u8_t *opt, int optlen ));
0038141 void ip_print_frags ARGS(( acc_t *acc ));
0038142 nettype_t ip_nettype ARGS(( ipaddr_t ipaddr ));
0038143 ipaddr_t ip_netmask ARGS(( nettype_t nettype ));
0038144 char *ip_nettoa ARGS(( nettype_t nettype ));
0038145
0038146 /* ip_ps.c */
0038147 int ipps_init ARGS(( ip_port_t *ip_port ));
0038148 void ipps_get ARGS(( int ip_port_nr ));
0038149 void ipps_put ARGS(( int ip_port_nr, acc_t *pack ));
0038150
0038151 /* ip_read.c */
0038152 void ip_port_arrive ARGS(( ip_port_t *port, acc_t *pack, ip_hdr_t *ip_hdr ));
0038153 void ip_arrived ARGS(( ip_port_t *port, acc_t *pack ));
0038154 void ip_arrived_broadcast ARGS(( ip_port_t *port, acc_t *pack ));
0038155 void ip_process_loopb ARGS(( event_t *ev, ev_arg_t arg ));
0038156
0038157 /* ip_write.c */
0038158 void dll_eth_write_frame ARGS(( ip_port_t *port ));
0038159 acc_t *ip_split_pack ARGS(( ip_port_t *ip_port, acc_t **ref_last,
0038160 int first_size ));
0038161 void ip_hdr_chksum ARGS(( ip_hdr_t *ip_hdr, int ip_hdr_len ));
0038162
0038163
0038164 extern ip_fd_t ip_fd_table[IP_FD_NR];
0038165 extern ip_port_t *ip_port_table;
0038166 extern ip_ass_t ip_ass_table[IP_ASS_NR];
0038167
0038168 #define NWIO_DEFAULT (NWIO_EN_LOC | NWIO_EN_BROAD | NWIO_REMANY | \
0038169 NWIO_RWDATALL | NWIO_HDR_O_SPEC)
0038170
0038171 #endif /* INET_IP_INT_H */
0038172
0038173 /*
0038174 * $PchId: ip_int.h,v 1.6 1996/12/17 07:59:36 philip Exp $
0038175 */