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- /*
- * 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
- */
-
- #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 64
- #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 __P((RMPCONN *));
- int BootDone __P((RMPCONN *));
- void BpfClose __P((void));
- char *BpfGetIntfName __P((char **));
- int BpfOpen __P((void));
- int BpfRead __P((RMPCONN *, int));
- int BpfWrite __P((RMPCONN *));
- void DebugOff __P((int));
- void DebugOn __P((int));
- void DispPkt __P((RMPCONN *, int));
- void DoTimeout __P((void));
- void DspFlnm __P((u_int, char *));
- void Exit __P((int));
- CLIENT *FindClient __P((RMPCONN *));
- RMPCONN *FindConn __P((RMPCONN *));
- void FreeClients __P((void));
- void FreeConn __P((RMPCONN *));
- void FreeConns __P((void));
- int GetBootFiles __P((void));
- char *GetEtherAddr __P((u_int8_t *));
- CLIENT *NewClient __P((u_int8_t *));
- RMPCONN *NewConn __P((RMPCONN *));
- char *NewStr __P((char *));
- u_int8_t *ParseAddr __P((char *));
- int ParseConfig __P((void));
- void ProcessPacket __P((RMPCONN *, CLIENT *));
- void ReConfig __P((int));
- void RemoveConn __P((RMPCONN *));
- int SendBootRepl __P((struct rmp_packet *, RMPCONN *, char *[]));
- int SendFileNo __P((struct rmp_packet *, RMPCONN *, char *[]));
- int SendPacket __P((RMPCONN *));
- int SendReadRepl __P((RMPCONN *));
- int SendServerID __P((RMPCONN *));
-