1 /* $OpenBSD: defs.h,v 1.10 2015/01/19 07:41:01 deraadt Exp $ */ 2 /* $NetBSD: defs.h,v 1.5 1995/10/06 05:12:14 thorpej Exp $ */ 3 4 /* 5 * Copyright (c) 1988, 1992 The University of Utah and the Center 6 * for Software Science (CSS). 7 * Copyright (c) 1992, 1993 8 * The Regents of the University of California. All rights reserved. 9 * 10 * This code is derived from software contributed to Berkeley by 11 * the Center for Software Science of the University of Utah Computer 12 * Science Department. CSS requests users of this software to return 13 * to css-dist@cs.utah.edu any improvements that they make and grant 14 * CSS redistribution rights. 15 * 16 * Redistribution and use in source and binary forms, with or without 17 * modification, are permitted provided that the following conditions 18 * are met: 19 * 1. Redistributions of source code must retain the above copyright 20 * notice, this list of conditions and the following disclaimer. 21 * 2. Redistributions in binary form must reproduce the above copyright 22 * notice, this list of conditions and the following disclaimer in the 23 * documentation and/or other materials provided with the distribution. 24 * 3. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 * 40 * from: @(#)defs.h 8.1 (Berkeley) 6/4/93 41 * 42 * From: Utah Hdr: defs.h 3.1 92/07/06 43 * Author: Jeff Forys, University of Utah CSS 44 */ 45 46 #include "rmp.h" 47 #include "rmp_var.h" 48 49 /* 50 ** Common #define's and external variables. All other files should 51 ** include this. 52 */ 53 54 /* 55 * These can be faster & more efficient than strcmp()/strncmp()... 56 */ 57 #define STREQN(s1,s2) ((*s1 == *s2) && (strcmp(s1,s2) == 0)) 58 #define STRNEQN(s1,s2,n) ((*s1 == *s2) && (strncmp(s1,s2,n) == 0)) 59 60 /* 61 * Configuration file limitations. 62 */ 63 #define C_MAXFILE 100 /* max number of bootable files */ 64 #define C_LINELEN 1024 /* max length of line */ 65 66 /* 67 * Direction of packet (used as argument to DispPkt). 68 */ 69 #define DIR_RCVD 0 70 #define DIR_SENT 1 71 #define DIR_NONE 2 72 73 /* 74 * These need not be functions, so... 75 */ 76 #define FreeStr(str) free(str) 77 #define FreeClient(cli) free(cli) 78 #define GenSessID() (++SessionID ? SessionID: ++SessionID) 79 80 /* 81 * Converting an Ethernet address to a string is done in many routines. 82 * Using `rmp.hp_hdr.saddr' works because this field is *never* changed; 83 * it will *always* contain the source address of the packet. 84 */ 85 #define EnetStr(rptr) GetEtherAddr(&(rptr)->rmp.hp_hdr.saddr[0]) 86 87 /* 88 * Every machine we can boot will have one of these allocated for it 89 * (unless there are no restrictions on who we can boot). 90 */ 91 typedef struct client_s { 92 u_int8_t addr[RMP_ADDRLEN]; /* addr of machine */ 93 char *files[C_MAXFILE]; /* bootable files */ 94 struct client_s *next; /* ptr to next */ 95 } CLIENT; 96 97 /* 98 * Every active connection has one of these allocated for it. 99 */ 100 typedef struct rmpconn_s { 101 struct rmp_packet rmp; /* RMP packet */ 102 int rmplen; /* length of packet */ 103 struct timeval tstamp; /* last time active */ 104 int bootfd; /* open boot file */ 105 struct rmpconn_s *next; /* ptr to next */ 106 } RMPCONN; 107 108 /* 109 * All these variables are defined in "conf.c". 110 */ 111 extern char MyHost[]; /* this hosts' name */ 112 extern int DebugFlg; /* set true if debugging */ 113 extern int BootAny; /* set true if we can boot anyone */ 114 115 extern char *ConfigFile; /* configuration file */ 116 extern char *DfltConfig; /* default configuration file */ 117 extern char *DbgFile; /* debug output file */ 118 extern char *BootDir; /* directory w/boot files */ 119 120 extern FILE *DbgFp; /* debug file pointer */ 121 extern char *IntfName; /* interface we are attached to */ 122 123 extern u_int16_t SessionID; /* generated session ID */ 124 125 extern char *BootFiles[]; /* list of boot files */ 126 127 extern CLIENT *Clients; /* list of addrs we'll accept */ 128 extern RMPCONN *RmpConns; /* list of active connections */ 129 130 extern u_int8_t RmpMcastAddr[]; /* RMP multicast address */ 131 132 void AddConn(RMPCONN *); 133 int BootDone(RMPCONN *); 134 char *BpfGetIntfName(char **); 135 int BpfOpen(void); 136 int BpfRead(RMPCONN *, int); 137 int BpfWrite(RMPCONN *); 138 void DispPkt(RMPCONN *, int); 139 void DoExit(void); 140 void DspFlnm(u_int, char *); 141 RMPCONN *FindConn(RMPCONN *); 142 void FreeClients(void); 143 void FreeConn(RMPCONN *); 144 void FreeConns(void); 145 int GetBootFiles(void); 146 char *GetEtherAddr(u_int8_t *); 147 CLIENT *NewClient(u_int8_t *); 148 RMPCONN *NewConn(RMPCONN *); 149 char *NewStr(char *); 150 u_int8_t *ParseAddr(char *); 151 int ParseConfig(void); 152 void ProcessPacket(RMPCONN *, CLIENT *); 153 void RemoveConn(RMPCONN *); 154 int SendBootRepl(struct rmp_packet *, RMPCONN *, char *[]); 155 int SendFileNo(struct rmp_packet *, RMPCONN *, char *[]); 156 int SendPacket(RMPCONN *); 157 int SendReadRepl(RMPCONN *); 158 int SendServerID(RMPCONN *); 159