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- /* A collection of stuff heavily dependent on the configuration info
- * in config.h. The idea is that configuration-dependent tables should
- * be located here to avoid having to pepper lots of .c files with #ifdefs,
- * requiring them to include config.h and be recompiled each time config.h
- * is modified.
- *
- * Copyright 1991 Phil Karn, KA9Q
- */
-
- #include <stdio.h>
- #include <dos.h>
- #include "global.h"
- #include "config.h"
- #include "mbuf.h"
- #include "timer.h"
- #include "proc.h"
- #include "iface.h"
- #include "ip.h"
- #include "tcp.h"
- #include "udp.h"
- #ifdef ARCNET
- #include "arcnet.h"
- #endif
- #include "lapb.h"
- #include "ax25.h"
- #include "enet.h"
- #include "kiss.h"
- #include "nr4.h"
- #include "netrom.h"
- #include "pktdrvr.h"
- #include "ppp.h"
- #include "slip.h"
- #include "arp.h"
- #include "icmp.h"
- #include "hardware.h" /***/
- #include "usock.h"
- #include "cmdparse.h"
- #include "commands.h"
- #include "mailbox.h"
- #include "ax25mail.h"
- #include "nr4mail.h"
- #include "tipmail.h"
- #include "daemon.h"
- #include "bootp.h"
-
- int dotest __ARGS((int argc,char *argv[],void *p)); /**/
- static int dostart __ARGS((int argc,char *argv[],void *p));
- static int dostop __ARGS((int argc,char *argv[],void *p));
-
- #ifdef AX25
- static void axip __ARGS((struct iface *iface,struct ax25_cb *axp,char *src,
- char *dest,struct mbuf *bp,int mcast));
- static void axarp __ARGS((struct iface *iface,struct ax25_cb *axp,char *src,
- char *dest,struct mbuf *bp,int mcast));
- static void axnr __ARGS((struct iface *iface,struct ax25_cb *axp,char *src,
- char *dest,struct mbuf *bp,int mcast));
- #endif
-
- struct mbuf *Hopper;
- unsigned Nsessions = NSESSIONS;
-
- /* Free memory threshold, below which things start to happen to conserve
- * memory, like garbage collection, source quenching and refusing connects
- */
- int32 Memthresh = MTHRESH;
-
- int Nibufs = NIBUFS; /* Number of interrupt buffers */
- unsigned Ibufsize = IBUFSIZE; /* Size of each interrupt buffer */
-
- /* Transport protocols atop IP */
- struct iplink Iplink[] = {
- TCP_PTCL, tcp_input,
- UDP_PTCL, udp_input,
- ICMP_PTCL, icmp_input,
- IP_PTCL, ipip_recv,
- 0, 0
- };
-
- /* Transport protocols atop ICMP */
- struct icmplink Icmplink[] = {
- TCP_PTCL, tcp_icmp,
- 0, 0
- };
-
- /* ARP protocol linkages */
- struct arp_type Arp_type[NHWTYPES] = {
- #ifdef NETROM
- AXALEN, 0, 0, 0, NULLCHAR, pax25, setcall, /* ARP_NETROM */
- #else
- 0, 0, 0, 0, NULLCHAR,NULL,NULL,
- #endif
-
- #ifdef ETHER
- EADDR_LEN,IP_TYPE,ARP_TYPE,1,Ether_bdcst,pether,gether, /* ARP_ETHER */
- #else
- 0, 0, 0, 0, NULLCHAR,NULL,NULL,
- #endif
-
- 0, 0, 0, 0, NULLCHAR,NULL,NULL, /* ARP_EETHER */
-
- #ifdef AX25
- AXALEN, PID_IP, PID_ARP, 10, Ax25multi[0], pax25, setcall,
- #else
- 0, 0, 0, 0, NULLCHAR,NULL,NULL, /* ARP_AX25 */
- #endif
-
- 0, 0, 0, 0, NULLCHAR,NULL,NULL, /* ARP_PRONET */
-
- 0, 0, 0, 0, NULLCHAR,NULL,NULL, /* ARP_CHAOS */
-
- 0, 0, 0, 0, NULLCHAR,NULL,NULL, /* ARP_IEEE802 */
-
- #ifdef ARCNET
- AADDR_LEN, ARC_IP, ARC_ARP, 1, ARC_bdcst, parc, garc, /* ARP_ARCNET */
- #else
- 0, 0, 0, 0, NULLCHAR,NULL,NULL,
- #endif
-
- 0, 0, 0, 0, NULLCHAR,NULL,NULL, /* ARP_APPLETALK */
- };
-
- #ifdef AX25
- /* Linkage to network protocols atop ax25 */
- struct axlink Axlink[] = {
- PID_IP, axip,
- PID_ARP, axarp,
- #ifdef NETROM
- PID_NETROM, axnr,
- #endif
- PID_NO_L3, axnl3,
- 0, NULL,
- };
- #endif
-
- #ifdef MAILBOX
- void (*Listusers) __ARGS((int s)) = listusers;
- #else
- void (*Listusers) __ARGS((int s)) = NULL;
- #endif
-
- #ifndef BOOTP
- int WantBootp = 0;
-
- int
- bootp_validPacket(ip,bpp)
- struct ip *ip;
- struct mbuf **bpp;
- {
- return 0;
- }
- #endif
-
- /* daemons to be run at startup time */
- struct daemon Daemons[] = {
- "killer", 512, killer,
- "timer", 1024, timerproc,
- "network", 1536, network,
- "keyboard", 250, keyboard,
- NULLCHAR, 0, NULLVFP
- };
-
- struct iftype Iftypes[] = {
- /* This entry must be first, since Loopback refers to it */
- "None", NULL, NULL, NULL,
- NULL, CL_NONE, 0,
-
- #ifdef AX25
- "AX25", ax_send, ax_output, pax25,
- setcall, CL_AX25, AXALEN,
- #endif
-
- #ifdef SLIP
- "SLIP", slip_send, NULL, NULL,
- NULL, CL_NONE, 0,
- #endif
-
- #ifdef ETHER
- /* Note: NULL is specified for the scan function even though
- * gether() exists because the packet drivers don't support
- * address setting.
- */
- "Ethernet", enet_send, enet_output, pether,
- NULL, CL_ETHERNET, EADDR_LEN,
- #endif
-
- #ifdef NETROM
- "NETROM", nr_send, NULL, pax25,
- setcall, CL_NETROM, AXALEN,
- #endif
-
- #ifdef SLFP
- "SLFP", pk_send, NULL, NULL,
- NULL, CL_NONE, 0,
- #endif
-
- #ifdef PPP
- "PPP", ppp_send, ppp_output, NULL,
- NULL, CL_PPP, 0,
- #endif
-
- NULLCHAR
- };
-
- /* Command lookup and branch tables */
- struct cmds Cmds[] = {
- /* The "go" command must be first */
- "", go, 0, 0, NULLCHAR,
- #ifndef AMIGA
- "!", doshell, 0, 0, NULLCHAR,
- #endif
- "abort", doabort, 0, 0, NULLCHAR,
- #ifdef AMIGA
- "amiga", doamiga, 0, 0, NULLCHAR,
- #endif
- #if (defined(MAC) && defined(APPLETALK))
- "applestat", doatstat, 0, 0, NULLCHAR,
- #endif
- #if (defined(AX25) || defined(ETHER) || defined(APPLETALK))
- "arp", doarp, 0, 0, NULLCHAR,
- #endif
- #ifdef ASY
- "asystat", doasystat, 0, 0, NULLCHAR,
- #endif
- "attach", doattach, 0, 2,
- "attach <hardware> <hw specific options>",
- #ifdef AX25
- "ax25", doax25, 0, 0, NULLCHAR,
- #endif
- #ifdef BOOTP
- "bootp", dobootp, 0, 0, NULLCHAR,
- "bootpd", bootpdcmd, 0, 0, NULLCHAR,
- #endif
- /* This one is out of alpabetical order to allow abbreviation to "c" */
- #ifdef AX25
- "connect", doconnect, 1024, 3,
- "connect <interface> <callsign>",
- #endif
- #if !defined(UNIX) && !defined(AMIGA)
- "cd", docd, 0, 0, NULLCHAR,
- #endif
- "close", doclose, 0, 0, NULLCHAR,
- /* This one is out of alpabetical order to allow abbreviation to "d" */
- "disconnect", doclose, 0, 0, NULLCHAR,
- "delete", dodelete, 0, 2, "delete <file>",
- "detach", dodetach, 0, 2, "detach <interface>",
- #ifdef DIALER
- "dialer", dodialer, 512, 3,
- "dialer <iface> [<file> [<seconds> [<pings> [<hostid>]]]]",
- #endif
- #ifndef AMIGA
- "dir", dodir, 512, 0, NULLCHAR, /* note sequence */
- #endif
- "domain", dodomain, 0, 0, NULLCHAR,
- #ifdef DRSI
- "drsistat", dodrstat, 0, 0, NULLCHAR,
- #endif
- #ifdef EAGLE
- "eaglestat", doegstat, 0, 0, NULLCHAR,
- #endif
- "echo", doecho, 0, 0, NULLCHAR,
- "eol", doeol, 0, 0, NULLCHAR,
- #if !defined(MSDOS)
- "escape", doescape, 0, 0, NULLCHAR,
- #endif
- #ifdef PC_EC
- "etherstat", doetherstat, 0, 0, NULLCHAR,
- #endif
- "exit", doexit, 0, 0, NULLCHAR,
- "finger", dofinger, 1024, 2, "finger name@host",
- "ftp", doftp, 2048, 2, "ftp <address>",
- #ifdef HAPN
- "hapnstat", dohapnstat, 0, 0, NULLCHAR,
- #endif
- "help", dohelp, 0, 0, NULLCHAR,
- #ifdef HOPCHECK
- "hop", dohop, 0, 0, NULLCHAR,
- #endif
- "hostname", dohostname, 0, 0, NULLCHAR,
- #ifdef HS
- "hs", dohs, 0, 0, NULLCHAR,
- #endif
- "icmp", doicmp, 0, 0, NULLCHAR,
- "ifconfig", doifconfig, 0, 0, NULLCHAR,
- "ip", doip, 0, 0, NULLCHAR,
- #ifdef MSDOS
- "isat", doisat, 0, 0, NULLCHAR,
- #endif
- "kick", dokick, 0, 0, NULLCHAR,
- "log", dolog, 0, 0, NULLCHAR,
- #ifdef MAILBOX
- "mbox", dombox, 0, 0, NULLCHAR,
- #endif
- #ifndef UNIX
- "memory", domem, 0, 0, NULLCHAR,
- #endif
- "mkdir", domkd, 0, 2, "mkdir <directory>",
- #ifdef AX25
- "mode", domode, 0, 2, "mode <interface>",
- #endif
- "more", domore, 512, 2, "more <filename>",
- #ifdef NETROM
- "netrom", donetrom, 0, 0, NULLCHAR,
- #endif /* NETROM */
- #ifdef NNTP
- "nntp", donntp, 0, 0, NULLCHAR,
- #endif /* NNTP */
- #ifdef NRS
- "nrstat", donrstat, 0, 0, NULLCHAR,
- #endif /* NRS */
- "param", doparam, 0, 2, "param <interface>",
- "ping", doping, 512, 2,
- "ping <hostid> [<length> [<interval> [incflag]]]",
- #ifdef PI
- "pistatus", dopistat, 0, 0, NULLCHAR,
- #endif
- #ifdef POP
- "pop", dopop, 0, 0, NULLCHAR,
- #endif
- #ifdef PPP
- "ppp", doppp_commands, 0, 0, NULLCHAR,
- #endif
- "ps", ps, 0, 0, NULLCHAR,
- #if !defined(UNIX) && !defined(AMIGA)
- "pwd", docd, 0, 0, NULLCHAR,
- #endif
- "record", dorecord, 0, 0, NULLCHAR,
- "remote", doremote, 0, 3, "remote [-p port] [-k key] [-a kickaddr] <address> exit|reset|kick",
- "rename", dorename, 0, 3, "rename <oldfile> <newfile>",
- "reset", doreset, 0, 0, NULLCHAR,
- #ifdef RIP
- "rip", dorip, 0, 0, NULLCHAR,
- #endif
- "rmdir", dormd, 0, 2, "rmdir <directory>",
- "route", doroute, 0, 0, NULLCHAR,
- "session", dosession, 0, 0, NULLCHAR,
- #ifdef SCC
- "sccstat", dosccstat, 0, 0, NULLCHAR,
- #endif
- #if !defined(AMIGA)
- "shell", doshell, 0, 0, NULLCHAR,
- #endif
- "smtp", dosmtp, 0, 0, NULLCHAR,
- "socket", dosock, 0, 0, NULLCHAR,
- #ifdef SERVERS
- "start", dostart, 0, 2, "start <servername>",
- "stop", dostop, 0, 2, "stop <servername>",
- #endif
- "tcp", dotcp, 0, 0, NULLCHAR,
- "telnet", dotelnet, 1024, 2, "telnet <address>",
- "test", dotest, 0, 0, NULLCHAR,
- "tip", dotip, 256, 2, "tip <iface>",
- #ifdef TRACE
- "trace", dotrace, 0, 0, NULLCHAR,
- #endif
- "udp", doudp, 0, 0, NULLCHAR,
- "upload", doupload, 0, 0, NULLCHAR,
- #ifdef MSDOS
- "watch", doswatch, 0, 0, NULLCHAR,
- #endif
- "?", dohelp, 0, 0, NULLCHAR,
- NULLCHAR, NULLFP, 0, 0,
- "Unknown command; type \"?\" for list",
- };
-
- /* List of supported hardware devices */
- struct cmds Attab[] = {
- #ifdef PC_EC
- /* 3-Com Ethernet interface */
- "3c500", ec_attach, 0, 7,
- "attach 3c500 <address> <vector> arpa <label> <buffers> <mtu> [ip_addr]",
- #endif
- #ifdef ASY
- /* Ordinary PC asynchronous adaptor */
- "asy", asy_attach, 0, 8,
- #ifndef AMIGA
- "attach asy <address> <vector> slip|ax25|nrs|ppp <label> <buffers> <mtu> <speed> [ip_addr]",
- #else
- "attach asy <driver> <unit> slip|ax25|nrs|ppp <label> <buffers> <mtu> <speed> [ip_addr]",
- #endif /* AMIGA */
- #endif /* ASY */
- #ifdef PC100
- /* PACCOMM PC-100 8530 HDLC adaptor */
- "pc100", pc_attach, 0, 8,
- "attach pc100 <address> <vector> ax25 <label> <buffers>\
- <mtu> <speed> [ip_addra] [ip_addrb]",
- #endif
- #ifdef DRSI
- /* DRSI PCPA card in low speed mode */
- "drsi", dr_attach, 0, 8,
- "attach drsi <address> <vector> ax25 <label> <bufsize> <mtu>\
- <chan a speed> <chan b speed> [ip addr a] [ip addr b]",
- #endif
- #ifdef EAGLE
- /* EAGLE RS-232C 8530 HDLC adaptor */
- "eagle", eg_attach, 0, 8,
- "attach eagle <address> <vector> ax25 <label> <buffers>\
- <mtu> <speed> [ip_addra] [ip_addrb]",
- #endif
- #ifdef PI
- /* PI 8530 HDLC adaptor */
- "pi", pi_attach, 0, 8,
- "attach pi <address> <vector> <dmachannel> ax25 <label> <buffers>\
- <mtu> <speed> [ip_addra] [ip_addrb]",
- #endif
- #ifdef HAPN
- /* Hamilton Area Packet Radio (HAPN) 8273 HDLC adaptor */
- "hapn", hapn_attach, 0, 8,
- "attach hapn <address> <vector> ax25 <label> <rx bufsize>\
- <mtu> csma|full [ip_addr]",
- #endif
- #ifdef APPLETALK
- /* Macintosh AppleTalk */
- "0", at_attach, 0, 7,
- "attach 0 <protocol type> <device> arpa <label> <rx bufsize> <mtu> [ip_addr]",
- #endif
- #ifdef NETROM
- /* fake netrom interface */
- "netrom", nr_attach, 0, 1,
- "attach netrom [ip_addr]",
- #endif
- #ifdef PACKET
- /* FTP Software's packet driver spec */
- "packet", pk_attach, 0, 4,
- "attach packet <int#> <label> <buffers> <mtu> [ip_addr]",
- #endif
- #ifdef HS
- /* Special high speed driver for DRSI PCPA or Eagle cards */
- "hs", hs_attach, 0, 7,
- "attach hs <address> <vector> ax25 <label> <buffers> <mtu>\
- <txdelay> <persistence> [ip_addra] [ip_addrb]",
- #endif
- #ifdef SCC
- "scc", scc_attach, 0, 7,
- "attach scc <devices> init <addr> <spacing> <Aoff> <Boff> <Dataoff>\n"
- " <intack> <vec> [p]<clock> [hdwe] [param]\n"
- "attach scc <chan> slip|kiss|nrs|ax25 <label> <mtu> <speed> <bufsize> [call] ",
- #endif
- NULLCHAR,
- };
-
- /* Functions to be called on each clock tick */
- void (*Cfunc[])() = {
- pctick, /* Call PC-specific stuff to keep time */
- kbint, /* Necessary because there's no hardware keyboard interrupt */
- refiq, /* Replenish interrupt pool */
- #ifdef ASY
- asytimer,
- #endif
- #ifdef SCC
- scctimer,
- #endif
- NULL,
- };
-
- /* Entry points for garbage collection */
- void (*Gcollect[])() = {
- tcp_garbage,
- ip_garbage,
- udp_garbage,
- st_garbage,
- #ifdef AX25
- lapb_garbage,
- #endif
- #ifdef NETROM
- nr_garbage,
- #endif
- NULL
- };
-
- /* Functions to be called at shutdown */
- void (*Shutdown[])() = {
- #ifdef SCC
- sccstop,
- #endif
- uchtimer, /* Unlink timer handler from timer chain */
- NULLVFP,
- };
-
- /* Packet tracing stuff */
- #ifdef TRACE
- #include "trace.h"
-
- /* Protocol tracing function pointers. Matches list of class definitions
- * in pktdrvr.h.
- */
- struct trace Tracef[] = {
- NULLFP, ip_dump, /* CL_NONE */
-
- #ifdef ETHER /* CL_ETHERNET */
- ether_forus, ether_dump,
- #else
- NULLFP, NULLVFP,
- #endif /* ETHER */
-
- NULLFP, NULLVFP, /* CL_PRONET_10 */
- NULLFP, NULLVFP, /* CL_IEEE8025 */
- NULLFP, NULLVFP, /* CL_OMNINET */
-
- #ifdef APPLETALK
- at_forus, at_dump, /* CL_APPLETALK */
- #else
- NULLFP, NULLVFP,
- #endif /* APPLETALK */
-
- #ifdef VJCOMPRESS
- NULLFP, sl_dump, /* CL_SERIAL_LINE */
- #else
- NULLFP, ip_dump, /* CL_SERIAL_LINE */
- #endif
- NULLFP, NULLVFP, /* CL_STARLAN */
-
- #ifdef ARCNET
- arc_forus, arc_dump, /* CL_ARCNET */
- #else
- NULLFP, NULLVFP,
- #endif /* ARCNET */
-
- #ifdef AX25
- ax_forus, ax25_dump, /* CL_AX25 */
- #else
- NULLFP, NULLVFP,
- #endif /* AX25 */
-
- #ifdef KISS /* CL_KISS */
- ki_forus, ki_dump,
- #else
- NULLFP, NULLVFP,
- #endif /* KISS */
-
- NULLFP, NULLVFP, /* CL_IEEE8023 */
- NULLFP, NULLVFP, /* CL_FDDI */
- NULLFP, NULLVFP, /* CL_INTERNET_X25 */
- NULLFP, NULLVFP, /* CL_LANSTAR */
- NULLFP, ip_dump, /* CL_SLFP */
-
- #ifdef NETROM /* CL_NETROM */
- NULLFP, ip_dump,
- #else
- NULLFP, NULLVFP,
- #endif
-
- #ifdef PPP
- NULLFP, ppp_dump, /* CL_PPP */
- #else
- NULLFP, NULLVFP,
- #endif /* PPP */
- };
-
- #else /* TRACE */
-
- /* Stub for packet dump function */
- void
- dump(iface,direction,type,bp)
- struct iface *iface;
- int direction;
- unsigned type;
- struct mbuf *bp;
- {
- }
- void
- raw_dump(iface,direction,bp)
- struct iface *iface;
- int direction;
- struct mbuf *bp;
- {
- }
-
- #endif /* TRACE */
-
-
- #ifdef AX25
- /* Hooks for passing incoming AX.25 data frames to network protocols */
- static void
- axip(iface,axp,src,dest,bp,mcast)
- struct iface *iface;
- struct ax25_cb *axp;
- char *src;
- char *dest;
- struct mbuf *bp;
- int mcast;
- {
- (void)ip_route(iface,bp,mcast);
- }
-
- static void
- axarp(iface,axp,src,dest,bp,mcast)
- struct iface *iface;
- struct ax25_cb *axp;
- char *src;
- char *dest;
- struct mbuf *bp;
- int mcast;
- {
- (void)arp_input(iface,bp);
- }
-
- #ifdef NETROM
- static void
- axnr(iface,axp,src,dest,bp,mcast)
- struct iface *iface;
- struct ax25_cb *axp;
- char *src;
- char *dest;
- struct mbuf *bp;
- int mcast;
- {
- if(!mcast)
- nr_route(bp,axp);
- else
- nr_nodercv(iface,src,bp);
- }
-
- #endif /* NETROM */
- #endif /* AX25 */
-
- #ifndef RIP
- /* Stub for routing timeout when RIP is not configured -- just remove entry */
- void
- rt_timeout(s)
- void *s;
- {
- struct route *stale = (struct route *)s;
-
- rt_drop(stale->target,stale->bits);
- }
- #endif
-
- #ifdef SERVERS
- /* "start" and "stop" subcommands */
- static struct cmds Startcmds[] = {
- #if defined(AX25) && defined(MAILBOX)
- "ax25", ax25start, 256, 0, NULLCHAR,
- #endif
- "discard", dis1, 256, 0, NULLCHAR,
- "echo", echo1, 256, 0, NULLCHAR,
- "finger", finstart, 256, 0, NULLCHAR,
- "ftp", ftpstart, 256, 0, NULLCHAR,
- #if defined(NETROM) && defined(MAILBOX)
- "netrom", nr4start, 256, 0, NULLCHAR,
- #endif
- #ifdef POP
- "pop", pop1, 256, 0, NULLCHAR,
- #endif
- #ifdef RIP
- "rip", doripinit, 0, 0, NULLCHAR,
- #endif
- "smtp", smtp1, 256, 0, NULLCHAR,
- #if defined(MAILBOX)
- "telnet", telnet1, 256, 0, NULLCHAR,
- "tip", tipstart, 256, 2, "start tip <interface>",
- #endif
- "ttylink", ttylstart, 256, 0, NULLCHAR,
- "remote", rem1, 768, 0, NULLCHAR,
- NULLCHAR,
- };
- static struct cmds Stopcmds[] = {
- #if defined(AX25) && defined(MAILBOX)
- "ax25", ax250, 0, 0, NULLCHAR,
- #endif
- "discard", dis0, 0, 0, NULLCHAR,
- "echo", echo0, 0, 0, NULLCHAR,
- "finger", fin0, 0, 0, NULLCHAR,
- "ftp", ftp0, 0, 0, NULLCHAR,
- #if defined(NETROM) && defined(MAILBOX)
- "netrom", nr40, 0, 0, NULLCHAR,
- #endif
- #ifdef POP
- "pop", pop0, 0, 0, NULLCHAR,
- #endif
- #ifdef RIP
- "rip", doripstop, 0, 0, NULLCHAR,
- #endif
- "smtp", smtp0, 0, 0, NULLCHAR,
- #ifdef MAILBOX
- "telnet", telnet0, 0, 0, NULLCHAR,
- "tip", tip0, 0, 2, "stop tip <interface>",
- #endif
- "ttylink", ttyl0, 0, 0, NULLCHAR,
- "remote", rem0, 0, 0, NULLCHAR,
- NULLCHAR,
-
- };
- static int
- dostart(argc,argv,p)
- int argc;
- char *argv[];
- void *p;
- {
- return subcmd(Startcmds,argc,argv,p);
- }
- static int
- dostop(argc,argv,p)
- int argc;
- char *argv[];
- void *p;
- {
- return subcmd(Stopcmds,argc,argv,p);
- }
- #endif /* SERVERS */
-
- /* Various configuration-dependent functions */
-
- /* put mbuf into Hopper for network task
- * returns 0 if OK
- */
- int
- net_route(ifp, type, bp)
- struct iface *ifp;
- int type;
- struct mbuf *bp;
- {
- struct mbuf *nbp;
- struct phdr phdr;
-
- phdr.iface = ifp;
- phdr.type = type;
-
- if ((nbp = pushdown(bp,sizeof(phdr))) == NULLBUF ){
- return -1;
- }
- memcpy( &nbp->data[0],(char *)&phdr,sizeof(phdr));
- enqueue(&Hopper,nbp);
- /* Especially on slow machines, serial I/O can be quite
- * compute intensive, so release the machine before we
- * do the next packet. This will allow this packet to
- * go on toward its ultimate destination. [Karn]
- */
- pwait(NULL);
- return 0;
- }
-
-
- /* Process packets in the Hopper */
- static void
- network(i,v1,v2)
- int i;
- void *v1;
- void *v2;
- {
- struct mbuf *bp;
- struct phdr phdr;
- char i_state;
-
- loop:
- refiq(); /* Replenish interrupt buffer pool */
-
- i_state = dirps();
- while(Hopper == NULLBUF)
- pwait(&Hopper);
- restore(i_state);
-
- /* Process the input packet */
- bp = dequeue(&Hopper);
- pullup(&bp,(char *)&phdr,sizeof(phdr));
- if(phdr.iface != NULLIF){
- phdr.iface->rawrecvcnt++;
- phdr.iface->lastrecv = secclock();
- }
- dump(phdr.iface,IF_TRACE_IN,phdr.type,bp);
- switch(phdr.type){
- #ifdef KISS
- case CL_KISS:
- kiss_recv(phdr.iface,bp);
- break;
- #endif
- #ifdef AX25
- case CL_AX25:
- ax_recv(phdr.iface,bp);
- break;
- #endif
- #ifdef ETHER
- case CL_ETHERNET:
- eproc(phdr.iface,bp);
- break;
- #endif
- #ifdef ARCNET
- case CL_ARCNET:
- aproc(phdr.iface,bp);
- break;
- #endif
- #ifdef PPP
- case CL_PPP:
- ppp_proc(phdr.iface,bp);
- break;
- #endif
- /* These types have no link layer protocol at the point when they're
- * put in the hopper, so they can be handed directly to IP. The
- * separate types are just for user convenience when running the
- * "iface" command.
- */
- case CL_NONE:
- case CL_SERIAL_LINE:
- case CL_SLFP:
- ip_route(phdr.iface,bp,0);
- break;
- default:
- free_p(bp);
- break;
- }
- /* Let everything else run - this keeps the system from wedging
- * when we're hit by a big burst of packets
- */
- pwait(NULL);
- goto loop;
- }
-
- int
- dotest(argc,argv,p)
- int argc;
- char *argv[];
- void *p;
- {
- long i;
- int32 oldtime = 0;
- int32 newtime;
-
- Current->flowmode = 1;
- for(i=0;i<40000;i++){
- newtime = msclock();
- if(newtime < oldtime){
- tprintf("Clock slip %ld: %ld - %ld = %ld\n",i,
- newtime,oldtime,newtime-oldtime);
- } else
- oldtime = newtime;
- }
- pwait(NULL);
- Current->flowmode = 0;
- return 0;
- }
-
-