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. All advertising materials mentioning features or use of this software
22 * must display the following acknowledgement:
23 * This product includes software developed by the University of
24 * California, Berkeley and its contributors.
25 * 4. Neither the name of the University nor the names of its contributors
26 * may be used to endorse or promote products derived from this software
27 * without specific prior written permission.
29 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
30 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
31 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
32 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
33 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
38 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
41 * from: @(#)defs.h 8.1 (Berkeley) 6/4/93
43 * From: Utah Hdr: defs.h 3.1 92/07/06
44 * Author: Jeff Forys, University of Utah CSS
53 ** Common #define's and external variables. All other files should
58 * This may be defined in <sys/param.h>, if not, it's defined here.
60 #ifndef MAXHOSTNAMELEN
61 #define MAXHOSTNAMELEN 256
65 * SIGUSR1 and SIGUSR2 are defined in <signal.h> for 4.3BSD systems.
68 #define SIGUSR1 SIGEMT
71 #define SIGUSR2 SIGFPE
75 * These can be faster & more efficient than strcmp()/strncmp()...
77 #define STREQN(s1,s2) ((*s1 == *s2) && (strcmp(s1,s2) == 0))
78 #define STRNEQN(s1,s2,n) ((*s1 == *s2) && (strncmp(s1,s2,n) == 0))
81 * Configuration file limitations.
83 #define C_MAXFILE 10 /* max number of boot-able files */
84 #define C_LINELEN 1024 /* max length of line */
87 * Direction of packet (used as argument to DispPkt).
94 * These need not be functions, so...
96 #define FreeStr(str) free(str)
97 #define FreeClient(cli) free(cli)
98 #define GenSessID() (++SessionID ? SessionID: ++SessionID)
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.
105 #define EnetStr(rptr) GetEtherAddr(&(rptr)->rmp.hp_hdr.saddr[0])
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).
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 */
118 * Every active connection has one of these allocated for it.
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 */
129 * All these variables are defined in "conf.c".
131 extern char MyHost[]; /* this hosts' name */
132 extern pid_t MyPid; /* this processes' ID */
133 extern int DebugFlg; /* set true if debugging */
134 extern int BootAny; /* set true if we can boot anyone */
136 extern char *ConfigFile; /* configuration file */
137 extern char *DfltConfig; /* default configuration file */
138 extern char *DbgFile; /* debug output file */
139 extern char *PidFile; /* file containing pid of server */
140 extern char *BootDir; /* directory w/boot files */
142 extern FILE *DbgFp; /* debug file pointer */
143 extern char *IntfName; /* interface we are attached to */
145 extern u_int16_t SessionID; /* generated session ID */
147 extern char *BootFiles[]; /* list of boot files */
149 extern CLIENT *Clients; /* list of addrs we'll accept */
150 extern RMPCONN *RmpConns; /* list of active connections */
152 extern u_int8_t RmpMcastAddr[]; /* RMP multicast address */
154 void AddConn(RMPCONN *);
155 int BootDone(RMPCONN *);
157 char *BpfGetIntfName(char **);
159 int BpfRead(RMPCONN *, int);
160 int BpfWrite(RMPCONN *);
163 void DispPkt(RMPCONN *, int);
164 void DoTimeout(void);
165 void DspFlnm(u_int, char *);
167 CLIENT *FindClient(RMPCONN *);
168 RMPCONN *FindConn(RMPCONN *);
169 void FreeClients(void);
170 void FreeConn(RMPCONN *);
171 void FreeConns(void);
172 int GetBootFiles(void);
173 char *GetEtherAddr(u_int8_t *);
174 CLIENT *NewClient(u_int8_t *);
175 RMPCONN *NewConn(RMPCONN *);
176 char *NewStr(char *);
177 u_int8_t *ParseAddr(char *);
178 int ParseConfig(void);
179 void ProcessPacket(RMPCONN *, CLIENT *);
181 void RemoveConn(RMPCONN *);
182 int SendBootRepl(struct rmp_packet *, RMPCONN *, char *[]);
183 int SendFileNo(struct rmp_packet *, RMPCONN *, char *[]);
184 int SendPacket(RMPCONN *);
185 int SendReadRepl(RMPCONN *);
186 int SendServerID(RMPCONN *);