2 * SPDX-License-Identifier: BSD-3-Clause
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.
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.
15 * Redistribution and use in source and binary forms, with or without
16 * modification, are permitted provided that the following conditions
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. Neither the name of the University nor the names of its contributors
24 * may be used to endorse or promote products derived from this software
25 * without specific prior written permission.
27 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
39 * from: @(#)defs.h 8.1 (Berkeley) 6/4/93
41 * From: Utah Hdr: defs.h 3.1 92/07/06
42 * Author: Jeff Forys, University of Utah CSS
51 ** Common #define's and external variables. All other files should
56 * This may be defined in <sys/param.h>, if not, it's defined here.
58 #ifndef MAXHOSTNAMELEN
59 #define MAXHOSTNAMELEN 256
63 * SIGUSR1 and SIGUSR2 are defined in <signal.h> for 4.3BSD systems.
66 #define SIGUSR1 SIGEMT
69 #define SIGUSR2 SIGFPE
73 * These can be faster & more efficient than strcmp()/strncmp()...
75 #define STREQN(s1,s2) ((*s1 == *s2) && (strcmp(s1,s2) == 0))
76 #define STRNEQN(s1,s2,n) ((*s1 == *s2) && (strncmp(s1,s2,n) == 0))
79 * Configuration file limitations.
81 #define C_MAXFILE 10 /* max number of boot-able files */
82 #define C_LINELEN 1024 /* max length of line */
85 * Direction of packet (used as argument to DispPkt).
92 * These need not be functions, so...
94 #define FreeStr(str) free(str)
95 #define FreeClient(cli) free(cli)
96 #define GenSessID() (++SessionID ? SessionID: ++SessionID)
99 * Converting an Ethernet address to a string is done in many routines.
100 * Using `rmp.hp_hdr.saddr' works because this field is *never* changed;
101 * it will *always* contain the source address of the packet.
103 #define EnetStr(rptr) GetEtherAddr(&(rptr)->rmp.hp_hdr.saddr[0])
106 * Every machine we can boot will have one of these allocated for it
107 * (unless there are no restrictions on who we can boot).
109 typedef struct client_s {
110 u_int8_t addr[RMP_ADDRLEN]; /* addr of machine */
111 char *files[C_MAXFILE]; /* boot-able files */
112 struct client_s *next; /* ptr to next */
116 * Every active connection has one of these allocated for it.
118 typedef struct rmpconn_s {
119 struct rmp_packet rmp; /* RMP packet */
120 int rmplen; /* length of packet */
121 struct timeval tstamp; /* last time active */
122 int bootfd; /* open boot file */
123 struct rmpconn_s *next; /* ptr to next */
127 * All these variables are defined in "conf.c".
129 extern char MyHost[]; /* this hosts' name */
130 extern pid_t MyPid; /* this processes' ID */
131 extern int DebugFlg; /* set true if debugging */
132 extern int BootAny; /* set true if we can boot anyone */
134 extern char *ConfigFile; /* configuration file */
135 extern char *DfltConfig; /* default configuration file */
136 extern char *DbgFile; /* debug output file */
137 extern char *PidFile; /* file containing pid of server */
138 extern char *BootDir; /* directory w/boot files */
140 extern FILE *DbgFp; /* debug file pointer */
141 extern char *IntfName; /* interface we are attached to */
143 extern u_int16_t SessionID; /* generated session ID */
145 extern char *BootFiles[]; /* list of boot files */
147 extern CLIENT *Clients; /* list of addrs we'll accept */
148 extern RMPCONN *RmpConns; /* list of active connections */
150 extern u_int8_t RmpMcastAddr[]; /* RMP multicast address */
152 void AddConn(RMPCONN *);
153 int BootDone(RMPCONN *);
155 char *BpfGetIntfName(char **);
157 int BpfRead(RMPCONN *, int);
158 int BpfWrite(RMPCONN *);
161 void DispPkt(RMPCONN *, int);
162 void DoTimeout(void);
163 void DspFlnm(u_int, char *);
165 CLIENT *FindClient(RMPCONN *);
166 RMPCONN *FindConn(RMPCONN *);
167 void FreeClients(void);
168 void FreeConn(RMPCONN *);
169 void FreeConns(void);
170 int GetBootFiles(void);
171 char *GetEtherAddr(u_int8_t *);
172 CLIENT *NewClient(u_int8_t *);
173 RMPCONN *NewConn(RMPCONN *);
174 char *NewStr(char *);
175 u_int8_t *ParseAddr(char *);
176 int ParseConfig(void);
177 void ProcessPacket(RMPCONN *, CLIENT *);
179 void RemoveConn(RMPCONN *);
180 int SendBootRepl(struct rmp_packet *, RMPCONN *, char *[]);
181 int SendFileNo(struct rmp_packet *, RMPCONN *, char *[]);
182 int SendPacket(RMPCONN *);
183 int SendReadRepl(RMPCONN *);
184 int SendServerID(RMPCONN *);