/*- * SPDX-License-Identifier: BSD-3-Clause * * 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. 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: 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 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 *);
