1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
/*
* Copyright (c) 1988, 1992 The University of Utah and the Center
* for Software Science (CSS).
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* the Center for Software Science of the University of Utah Computer
* Science Department. CSS requests users of this software to return
* to css-dist@cs.utah.edu any improvements that they make and grant
* CSS redistribution rights.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* from: @(#)defs.h 8.1 (Berkeley) 6/4/93
*
* From: Utah Hdr: defs.h 3.1 92/07/06
* Author: Jeff Forys, University of Utah CSS
*
* $FreeBSD$
*/
#include "rmp.h"
#include "rmp_var.h"
/*
** Common #define's and external variables. All other files should
** include this.
*/
/*
* This may be defined in <sys/param.h>, if not, it's defined here.
*/
#ifndef MAXHOSTNAMELEN
#define MAXHOSTNAMELEN 256
#endif
/*
* SIGUSR1 and SIGUSR2 are defined in <signal.h> for 4.3BSD systems.
*/
#ifndef SIGUSR1
#define SIGUSR1 SIGEMT
#endif
#ifndef SIGUSR2
#define SIGUSR2 SIGFPE
#endif
/*
* These can be faster & more efficient than strcmp()/strncmp()...
*/
#define STREQN(s1,s2) ((*s1 == *s2) && (strcmp(s1,s2) == 0))
#define STRNEQN(s1,s2,n) ((*s1 == *s2) && (strncmp(s1,s2,n) == 0))
/*
* Configuration file limitations.
*/
#define C_MAXFILE 10 /* max number of boot-able files */
#define C_LINELEN 1024 /* max length of line */
/*
* Direction of packet (used as argument to DispPkt).
*/
#define DIR_RCVD 0
#define DIR_SENT 1
#define DIR_NONE 2
/*
* These need not be functions, so...
*/
#define FreeStr(str) free(str)
#define FreeClient(cli) free(cli)
#define GenSessID() (++SessionID ? SessionID: ++SessionID)
/*
* Converting an Ethernet address to a string is done in many routines.
* Using `rmp.hp_hdr.saddr' works because this field is *never* changed;
* it will *always* contain the source address of the packet.
*/
#define EnetStr(rptr) GetEtherAddr(&(rptr)->rmp.hp_hdr.saddr[0])
/*
* Every machine we can boot will have one of these allocated for it
* (unless there are no restrictions on who we can boot).
*/
typedef struct client_s {
u_int8_t addr[RMP_ADDRLEN]; /* addr of machine */
char *files[C_MAXFILE]; /* boot-able files */
struct client_s *next; /* ptr to next */
} CLIENT;
/*
* Every active connection has one of these allocated for it.
*/
typedef struct rmpconn_s {
struct rmp_packet rmp; /* RMP packet */
int rmplen; /* length of packet */
struct timeval tstamp; /* last time active */
int bootfd; /* open boot file */
struct rmpconn_s *next; /* ptr to next */
} RMPCONN;
/*
* All these variables are defined in "conf.c".
*/
extern char MyHost[]; /* this hosts' name */
extern pid_t MyPid; /* this processes' ID */
extern int DebugFlg; /* set true if debugging */
extern int BootAny; /* set true if we can boot anyone */
extern char *ConfigFile; /* configuration file */
extern char *DfltConfig; /* default configuration file */
extern char *DbgFile; /* debug output file */
extern char *PidFile; /* file containing pid of server */
extern char *BootDir; /* directory w/boot files */
extern FILE *DbgFp; /* debug file pointer */
extern char *IntfName; /* interface we are attached to */
extern u_int16_t SessionID; /* generated session ID */
extern char *BootFiles[]; /* list of boot files */
extern CLIENT *Clients; /* list of addrs we'll accept */
extern RMPCONN *RmpConns; /* list of active connections */
extern u_int8_t RmpMcastAddr[]; /* RMP multicast address */
void AddConn(RMPCONN *);
int BootDone(RMPCONN *);
void BpfClose(void);
char *BpfGetIntfName(char **);
int BpfOpen(void);
int BpfRead(RMPCONN *, int);
int BpfWrite(RMPCONN *);
void DebugOff(int);
void DebugOn(int);
void DispPkt(RMPCONN *, int);
void DoTimeout(void);
void DspFlnm(u_int, char *);
void Exit(int);
CLIENT *FindClient(RMPCONN *);
RMPCONN *FindConn(RMPCONN *);
void FreeClients(void);
void FreeConn(RMPCONN *);
void FreeConns(void);
int GetBootFiles(void);
char *GetEtherAddr(u_int8_t *);
CLIENT *NewClient(u_int8_t *);
RMPCONN *NewConn(RMPCONN *);
char *NewStr(char *);
u_int8_t *ParseAddr(char *);
int ParseConfig(void);
void ProcessPacket(RMPCONN *, CLIENT *);
void ReConfig(int);
void RemoveConn(RMPCONN *);
int SendBootRepl(struct rmp_packet *, RMPCONN *, char *[]);
int SendFileNo(struct rmp_packet *, RMPCONN *, char *[]);
int SendPacket(RMPCONN *);
int SendReadRepl(RMPCONN *);
int SendServerID(RMPCONN *);
|
