1 /* $NetBSD: defs.h,v 1.7 1999/06/06 03:11:40 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1988, 1992 The University of Utah and the Center 5 * for Software Science (CSS). 6 * Copyright (c) 1992, 1993 7 * The Regents of the University of California. All rights reserved. 8 * 9 * This code is derived from software contributed to Berkeley by 10 * the Center for Software Science of the University of Utah Computer 11 * Science Department. CSS requests users of this software to return 12 * to css-dist@cs.utah.edu any improvements that they make and grant 13 * CSS redistribution rights. 14 * 15 * Redistribution and use in source and binary forms, with or without 16 * modification, are permitted provided that the following conditions 17 * are met: 18 * 1. Redistributions of source code must retain the above copyright 19 * notice, this list of conditions and the following disclaimer. 20 * 2. Redistributions in binary form must reproduce the above copyright 21 * notice, this list of conditions and the following disclaimer in the 22 * documentation and/or other materials provided with the distribution. 23 * 3. All advertising materials mentioning features or use of this software 24 * must display the following acknowledgement: 25 * This product includes software developed by the University of 26 * California, Berkeley and its contributors. 27 * 4. Neither the name of the University nor the names of its contributors 28 * may be used to endorse or promote products derived from this software 29 * without specific prior written permission. 30 * 31 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 32 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 33 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 34 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 35 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 39 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 40 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 41 * SUCH DAMAGE. 42 * 43 * from: @(#)defs.h 8.1 (Berkeley) 6/4/93 44 * 45 * From: Utah Hdr: defs.h 3.1 92/07/06 46 * Author: Jeff Forys, University of Utah CSS 47 */ 48 49 #include "rmp.h" 50 #include "rmp_var.h" 51 52 /* 53 ** Common #define's and external variables. All other files should 54 ** include this. 55 */ 56 57 /* 58 * This may be defined in <sys/param.h>, if not, it's defined here. 59 */ 60 #ifndef MAXHOSTNAMELEN 61 #define MAXHOSTNAMELEN 64 62 #endif 63 64 /* 65 * SIGUSR1 and SIGUSR2 are defined in <signal.h> for 4.3BSD systems. 66 */ 67 #ifndef SIGUSR1 68 #define SIGUSR1 SIGEMT 69 #endif 70 #ifndef SIGUSR2 71 #define SIGUSR2 SIGFPE 72 #endif 73 74 /* 75 * These can be faster & more efficient than strcmp()/strncmp()... 76 */ 77 #define STREQN(s1,s2) ((*s1 == *s2) && (strcmp(s1,s2) == 0)) 78 #define STRNEQN(s1,s2,n) ((*s1 == *s2) && (strncmp(s1,s2,n) == 0)) 79 80 /* 81 * Configuration file limitations. 82 */ 83 #define C_MAXFILE 10 /* max number of boot-able files */ 84 #define C_LINELEN 1024 /* max length of line */ 85 86 /* 87 * Direction of packet (used as argument to DispPkt). 88 */ 89 #define DIR_RCVD 0 90 #define DIR_SENT 1 91 #define DIR_NONE 2 92 93 /* 94 * These need not be functions, so... 95 */ 96 #define FreeStr(str) free(str) 97 #define FreeClient(cli) free(cli) 98 #define GenSessID() (++SessionID ? SessionID: ++SessionID) 99 100 /* 101 * Converting an Ethernet address to a string is done in many routines. 102 * Using `rmp.hp_hdr.saddr' works because this field is *never* changed; 103 * it will *always* contain the source address of the packet. 104 */ 105 #define EnetStr(rptr) GetEtherAddr(&(rptr)->rmp.hp_hdr.saddr[0]) 106 107 /* 108 * Every machine we can boot will have one of these allocated for it 109 * (unless there are no restrictions on who we can boot). 110 */ 111 typedef struct client_s { 112 u_int8_t addr[RMP_ADDRLEN]; /* addr of machine */ 113 char *files[C_MAXFILE]; /* boot-able files */ 114 struct client_s *next; /* ptr to next */ 115 } CLIENT; 116 117 /* 118 * Every active connection has one of these allocated for it. 119 */ 120 typedef struct rmpconn_s { 121 struct rmp_packet rmp; /* RMP packet */ 122 int rmplen; /* length of packet */ 123 struct timeval tstamp; /* last time active */ 124 int bootfd; /* open boot file */ 125 struct rmpconn_s *next; /* ptr to next */ 126 } RMPCONN; 127 128 /* 129 * All these variables are defined in "conf.c". 130 */ 131 extern char MyHost[MAXHOSTNAMELEN+1]; /* this hosts' name */ 132 extern int DebugFlg; /* set true if debugging */ 133 extern int BootAny; /* set true if we can boot anyone */ 134 135 extern char *ConfigFile; /* configuration file */ 136 extern char *DfltConfig; /* default configuration file */ 137 extern char *DbgFile; /* debug output file */ 138 extern char *PidFile; /* file containing pid of server */ 139 extern char *BootDir; /* directory w/boot files */ 140 141 extern FILE *DbgFp; /* debug file pointer */ 142 extern char *IntfName; /* interface we are attached to */ 143 144 extern u_int16_t SessionID; /* generated session ID */ 145 146 extern char *BootFiles[]; /* list of boot files */ 147 148 extern CLIENT *Clients; /* list of addrs we'll accept */ 149 extern RMPCONN *RmpConns; /* list of active connections */ 150 151 extern u_int8_t RmpMcastAddr[]; /* RMP multicast address */ 152 153 void AddConn __P((RMPCONN *)); 154 int BootDone __P((RMPCONN *)); 155 void BpfClose __P((void)); 156 char *BpfGetIntfName __P((char **)); 157 int BpfOpen __P((void)); 158 int BpfRead __P((RMPCONN *, int)); 159 int BpfWrite __P((RMPCONN *)); 160 void DebugOff __P((int)); 161 void DebugOn __P((int)); 162 void DispPkt __P((RMPCONN *, int)); 163 void DoTimeout __P((void)); 164 void DspFlnm __P((u_int, char *)); 165 void Exit __P((int)); 166 CLIENT *FindClient __P((RMPCONN *)); 167 RMPCONN *FindConn __P((RMPCONN *)); 168 void FreeClients __P((void)); 169 void FreeConn __P((RMPCONN *)); 170 void FreeConns __P((void)); 171 int GetBootFiles __P((void)); 172 char *GetEtherAddr __P((u_int8_t *)); 173 CLIENT *NewClient __P((u_int8_t *)); 174 RMPCONN *NewConn __P((RMPCONN *)); 175 char *NewStr __P((char *)); 176 u_int8_t *ParseAddr __P((char *)); 177 int ParseConfig __P((void)); 178 void ProcessPacket __P((RMPCONN *, CLIENT *)); 179 void ReConfig __P((int)); 180 void RemoveConn __P((RMPCONN *)); 181 int SendBootRepl __P((struct rmp_packet *, RMPCONN *, char *[])); 182 int SendFileNo __P((struct rmp_packet *, RMPCONN *, char *[])); 183 int SendPacket __P((RMPCONN *)); 184 int SendReadRepl __P((RMPCONN *)); 185 int SendServerID __P((RMPCONN *)); 186