2 * Copyright (c) 1988, 1992 The University of Utah and the Center
3 * for Software Science (CSS).
4 * Copyright (c) 1992, 1993
5 * The Regents of the University of California. All rights reserved.
7 * This code is derived from software contributed to Berkeley by
8 * the Center for Software Science of the University of Utah Computer
9 * Science Department. CSS requests users of this software to return
10 * to css-dist@cs.utah.edu any improvements that they make and grant
11 * CSS redistribution rights.
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
21 * 3. Neither the name of the University nor the names of its contributors
22 * may be used to endorse or promote products derived from this software
23 * without specific prior written permission.
25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 * from: @(#)defs.h 8.1 (Berkeley) 6/4/93
39 * From: Utah Hdr: defs.h 3.1 92/07/06
40 * Author: Jeff Forys, University of Utah CSS
49 ** Common #define's and external variables. All other files should
54 * This may be defined in <sys/param.h>, if not, it's defined here.
56 #ifndef MAXHOSTNAMELEN
57 #define MAXHOSTNAMELEN 256
61 * SIGUSR1 and SIGUSR2 are defined in <signal.h> for 4.3BSD systems.
64 #define SIGUSR1 SIGEMT
67 #define SIGUSR2 SIGFPE
71 * These can be faster & more efficient than strcmp()/strncmp()...
73 #define STREQN(s1,s2) ((*s1 == *s2) && (strcmp(s1,s2) == 0))
74 #define STRNEQN(s1,s2,n) ((*s1 == *s2) && (strncmp(s1,s2,n) == 0))
77 * Configuration file limitations.
79 #define C_MAXFILE 10 /* max number of boot-able files */
80 #define C_LINELEN 1024 /* max length of line */
83 * Direction of packet (used as argument to DispPkt).
90 * These need not be functions, so...
92 #define FreeStr(str) free(str)
93 #define FreeClient(cli) free(cli)
94 #define GenSessID() (++SessionID ? SessionID: ++SessionID)
97 * Converting an Ethernet address to a string is done in many routines.
98 * Using `rmp.hp_hdr.saddr' works because this field is *never* changed;
99 * it will *always* contain the source address of the packet.
101 #define EnetStr(rptr) GetEtherAddr(&(rptr)->rmp.hp_hdr.saddr[0])
104 * Every machine we can boot will have one of these allocated for it
105 * (unless there are no restrictions on who we can boot).
107 typedef struct client_s {
108 u_int8_t addr[RMP_ADDRLEN]; /* addr of machine */
109 char *files[C_MAXFILE]; /* boot-able files */
110 struct client_s *next; /* ptr to next */
114 * Every active connection has one of these allocated for it.
116 typedef struct rmpconn_s {
117 struct rmp_packet rmp; /* RMP packet */
118 int rmplen; /* length of packet */
119 struct timeval tstamp; /* last time active */
120 int bootfd; /* open boot file */
121 struct rmpconn_s *next; /* ptr to next */
125 * All these variables are defined in "conf.c".
127 extern char MyHost[]; /* this hosts' name */
128 extern pid_t MyPid; /* this processes' ID */
129 extern int DebugFlg; /* set true if debugging */
130 extern int BootAny; /* set true if we can boot anyone */
132 extern char *ConfigFile; /* configuration file */
133 extern char *DfltConfig; /* default configuration file */
134 extern char *DbgFile; /* debug output file */
135 extern char *PidFile; /* file containing pid of server */
136 extern char *BootDir; /* directory w/boot files */
138 extern FILE *DbgFp; /* debug file pointer */
139 extern char *IntfName; /* interface we are attached to */
141 extern u_int16_t SessionID; /* generated session ID */
143 extern char *BootFiles[]; /* list of boot files */
145 extern CLIENT *Clients; /* list of addrs we'll accept */
146 extern RMPCONN *RmpConns; /* list of active connections */
148 extern u_int8_t RmpMcastAddr[]; /* RMP multicast address */
150 void AddConn(RMPCONN *);
151 int BootDone(RMPCONN *);
153 char *BpfGetIntfName(char **);
155 int BpfRead(RMPCONN *, int);
156 int BpfWrite(RMPCONN *);
159 void DispPkt(RMPCONN *, int);
160 void DoTimeout(void);
161 void DspFlnm(u_int, char *);
163 CLIENT *FindClient(RMPCONN *);
164 RMPCONN *FindConn(RMPCONN *);
165 void FreeClients(void);
166 void FreeConn(RMPCONN *);
167 void FreeConns(void);
168 int GetBootFiles(void);
169 char *GetEtherAddr(u_int8_t *);
170 CLIENT *NewClient(u_int8_t *);
171 RMPCONN *NewConn(RMPCONN *);
172 char *NewStr(char *);
173 u_int8_t *ParseAddr(char *);
174 int ParseConfig(void);
175 void ProcessPacket(RMPCONN *, CLIENT *);
177 void RemoveConn(RMPCONN *);
178 int SendBootRepl(struct rmp_packet *, RMPCONN *, char *[]);
179 int SendFileNo(struct rmp_packet *, RMPCONN *, char *[]);
180 int SendPacket(RMPCONN *);
181 int SendReadRepl(RMPCONN *);
182 int SendServerID(RMPCONN *);