| /* $NetBSD: defs.h,v 1.5 1995/10/06 05:12:14 thorpej Exp $ */ |
| |
| /* |
| * Copyright (c) 1988, 1992 The University of Utah and the Center |
| * for Software Science (CSS). |
| * Copyright (c) 1992, 1993 |
| * The Regents of the University of California. All rights reserved. |
| * |
| * This code is derived from software contributed to Berkeley by |
| * the Center for Software Science of the University of Utah Computer |
| * Science Department. CSS requests users of this software to return |
| * to css-dist@cs.utah.edu any improvements that they make and grant |
| * CSS redistribution rights. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. All advertising materials mentioning features or use of this software |
| * must display the following acknowledgement: |
| * This product includes software developed by the University of |
| * California, Berkeley and its contributors. |
| * 4. Neither the name of the University nor the names of its contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * |
| * from: @(#)defs.h 8.1 (Berkeley) 6/4/93 |
| * |
| * From: Utah Hdr: defs.h 3.1 92/07/06 |
| * Author: Jeff Forys, University of Utah CSS |
| */ |
| |
| #include "rmp.h" |
| #include "rmp_var.h" |
| |
| #ifdef __linux__ |
| #include <sys/time.h> |
| #include <pcap.h> |
| #include <netinet/in.h> /* for htons() and ntohs() */ |
| #endif |
| |
| /* |
| ** Common #define's and external variables. All other files should |
| ** include this. |
| */ |
| |
| /* |
| * This may be defined in <sys/param.h>, if not, it's defined here. |
| */ |
| #ifndef MAXHOSTNAMELEN |
| #define MAXHOSTNAMELEN 64 |
| #endif |
| |
| /* |
| * SIGUSR1 and SIGUSR2 are defined in <signal.h> for 4.3BSD systems. |
| */ |
| #ifndef SIGUSR1 |
| #define SIGUSR1 SIGEMT |
| #endif |
| #ifndef SIGUSR2 |
| #define SIGUSR2 SIGFPE |
| #endif |
| |
| /* |
| * These can be faster & more efficient than strcmp()/strncmp()... |
| */ |
| #define STREQN(s1,s2) ((*s1 == *s2) && (strcmp(s1,s2) == 0)) |
| #define STRNEQN(s1,s2,n) ((*s1 == *s2) && (strncmp(s1,s2,n) == 0)) |
| |
| /* |
| * Configuration file limitations. |
| */ |
| #define C_MAXFILE 10 /* max number of boot-able files */ |
| #define C_LINELEN 1024 /* max length of line */ |
| |
| /* |
| * Direction of packet (used as argument to DispPkt). |
| */ |
| #define DIR_RCVD 0 |
| #define DIR_SENT 1 |
| #define DIR_NONE 2 |
| |
| /* |
| * These need not be functions, so... |
| */ |
| #define FreeStr(str) free(str) |
| #define FreeClient(cli) free(cli) |
| #define GenSessID() (++SessionID ? SessionID: ++SessionID) |
| |
| /* |
| * Converting an Ethernet address to a string is done in many routines. |
| * Using `rmp.hp_hdr.saddr' works because this field is *never* changed; |
| * it will *always* contain the source address of the packet. |
| */ |
| #define EnetStr(rptr) GetEtherAddr(&(rptr)->rmp.hp_hdr.saddr[0]) |
| |
| /* |
| * Every machine we can boot will have one of these allocated for it |
| * (unless there are no restrictions on who we can boot). |
| */ |
| typedef struct client_s { |
| u_int8_t addr[RMP_ADDRLEN]; /* addr of machine */ |
| char *files[C_MAXFILE]; /* boot-able files */ |
| struct client_s *next; /* ptr to next */ |
| } CLIENT; |
| |
| /* |
| * Every active connection has one of these allocated for it. |
| */ |
| typedef struct rmpconn_s { |
| struct rmp_packet rmp; /* RMP packet */ |
| int rmplen; /* length of packet */ |
| struct timeval tstamp; /* last time active */ |
| int bootfd; /* open boot file */ |
| struct rmpconn_s *next; /* ptr to next */ |
| } RMPCONN; |
| |
| /* |
| * All these variables are defined in "conf.c". |
| */ |
| extern char MyHost[]; /* this hosts' name */ |
| extern pid_t MyPid; /* this processes' ID */ |
| extern int DebugFlg; /* set true if debugging */ |
| extern int BootAny; /* set true if we can boot anyone */ |
| |
| extern char *ConfigFile; /* configuration file */ |
| extern char *DfltConfig; /* default configuration file */ |
| extern char *DbgFile; /* debug output file */ |
| extern char *PidFile; /* file containing pid of server */ |
| extern char *BootDir; /* directory w/boot files */ |
| |
| extern FILE *DbgFp; /* debug file pointer */ |
| extern char *IntfName; /* interface we are attached to */ |
| |
| extern u_int16_t SessionID; /* generated session ID */ |
| |
| extern char *BootFiles[]; /* list of boot files */ |
| |
| extern CLIENT *Clients; /* list of addrs we'll accept */ |
| extern RMPCONN *RmpConns; /* list of active connections */ |
| |
| extern u_int8_t RmpMcastAddr[]; /* RMP multicast address */ |
| |
| void AddConn __P((RMPCONN *)); |
| int BootDone __P((RMPCONN *)); |
| |
| #ifndef __linux__ |
| /* BPF functions, for BSDish systems */ |
| void BpfClose __P((void)); |
| char *BpfGetIntfName __P((char **)); |
| int BpfOpen __P((void)); |
| int BpfRead __P((RMPCONN *, int)); |
| int BpfWrite __P((RMPCONN *)); |
| #else |
| /* Linux version uses pcap library: */ |
| void PcapOpen(); |
| char *PcapGetIntfName(char **); |
| void PcapHandler(u_char *user, const struct pcap_pkthdr *h, const u_char *sp); |
| int PcapDispatch(void (*usrhandler)(RMPCONN rconn)); |
| void PcapClose(); |
| void DealWithPacket(RMPCONN rconn); /* this is in rbootd.c... PMM */ |
| int PcapWrite(RMPCONN* rconn); /* not actually using libpcap, but... */ |
| #endif |
| |
| void DebugOff __P((int)); |
| void DebugOn __P((int)); |
| void DispPkt __P((RMPCONN *, int)); |
| void DoTimeout __P((void)); |
| void DspFlnm __P((u_int, char *)); |
| void Exit __P((int)); |
| CLIENT *FindClient __P((RMPCONN *)); |
| RMPCONN *FindConn __P((RMPCONN *)); |
| void FreeClients __P((void)); |
| void FreeConn __P((RMPCONN *)); |
| void FreeConns __P((void)); |
| int GetBootFiles __P((void)); |
| char *GetEtherAddr __P((u_int8_t *)); |
| CLIENT *NewClient __P((u_int8_t *)); |
| RMPCONN *NewConn __P((RMPCONN *)); |
| char *NewStr __P((char *)); |
| u_int8_t *ParseAddr __P((char *)); |
| int ParseConfig __P((void)); |
| void ProcessPacket __P((RMPCONN *, CLIENT *)); |
| void ReConfig __P((int)); |
| void RemoveConn __P((RMPCONN *)); |
| int SendBootRepl __P((struct rmp_packet *, RMPCONN *, char *[])); |
| int SendFileNo __P((struct rmp_packet *, RMPCONN *, char *[])); |
| int SendPacket __P((RMPCONN *)); |
| int SendReadRepl __P((RMPCONN *)); |
| int SendServerID __P((RMPCONN *)); |
