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-rw-r--r--network_cmds/kdumpd.tproj/com.apple.kdumpd.plist36
-rw-r--r--network_cmds/kdumpd.tproj/kdump.h114
-rwxr-xr-xnetwork_cmds/kdumpd.tproj/kdumpd.883
-rw-r--r--network_cmds/kdumpd.tproj/kdumpd.c726
-rw-r--r--network_cmds/kdumpd.tproj/kdumpsubs.c273
-rw-r--r--network_cmds/kdumpd.tproj/kdumpsubs.h72
6 files changed, 1304 insertions, 0 deletions
diff --git a/network_cmds/kdumpd.tproj/com.apple.kdumpd.plist b/network_cmds/kdumpd.tproj/com.apple.kdumpd.plist
new file mode 100644
index 0000000..3b09ade
--- /dev/null
+++ b/network_cmds/kdumpd.tproj/com.apple.kdumpd.plist
@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+ <key>Disabled</key>
+ <true/>
+ <key>InitGroups</key>
+ <true/>
+ <key>Label</key>
+ <string>com.apple.kdumpd</string>
+ <key>ProgramArguments</key>
+ <array>
+ <string>/usr/libexec/kdumpd</string>
+ <string>/var/tmp/PanicDumps</string>
+ </array>
+ <key>Sockets</key>
+ <dict>
+ <key>Listener</key>
+ <dict>
+ <key>SockServiceName</key>
+ <string>1069</string>
+ <key>SockType</key>
+ <string>dgram</string>
+ </dict>
+ </dict>
+ <key>UserName</key>
+ <string>nobody</string>
+ <key>Umask</key>
+ <integer>7</integer>
+ <key>inetdCompatibility</key>
+ <dict>
+ <key>Wait</key>
+ <true/>
+ </dict>
+</dict>
+</plist>
diff --git a/network_cmds/kdumpd.tproj/kdump.h b/network_cmds/kdumpd.tproj/kdump.h
new file mode 100644
index 0000000..9536946
--- /dev/null
+++ b/network_cmds/kdumpd.tproj/kdump.h
@@ -0,0 +1,114 @@
+/*
+ * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ *
+ * The contents of this file constitute Original Code as defined in and
+ * are subject to the Apple Public Source License Version 1.1 (the
+ * "License"). You may not use this file except in compliance with the
+ * License. Please obtain a copy of the License at
+ * http://www.apple.com/publicsource and read it before using this file.
+ *
+ * This Original Code and all software distributed under the License are
+ * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
+ * License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * @APPLE_LICENSE_HEADER_END@
+ */
+/*
+ * Copyright (c) 1983, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * 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.
+ *
+ * @(#)kdump.h 8.1 (Berkeley) 6/2/93
+ */
+
+#ifndef _KDUMP_H_
+#define _KDUMP_H_
+#include <netinet/ip_var.h>
+#include <netinet/udp.h>
+#include <netinet/udp_var.h>
+
+/* Mac OS X kernel core dump server, based on the BSD trivial file
+ * transfer protocol server (FreeBSD distribution), with several
+ * modifications. This server is *not* compatible with tftp, as the
+ * protocol has changed considerably.
+ */
+
+#define SEGSIZE 512 /* data segment size */
+#define MAXIMUM_KDP_PKTSIZE (16384)
+/*
+ * Packet types.
+ */
+#define RRQ 1 /* read request */
+#define WRQ 2 /* write request */
+#define DATA 3 /* data packet */
+#define ACK 4 /* acknowledgement */
+#define ERROR 5 /* error code */
+#define KDP_SEEK 6 /* Seek to specified offset */
+#define KDP_EOF 7 /* end of file */
+
+struct kdumphdr {
+ short th_opcode; /* packet type */
+ union {
+ unsigned int tu_block; /* block # */
+ unsigned int tu_code; /* error code */
+ char tu_stuff[1]; /* request packet stuff */
+ } th_u;
+ char th_data[0]; /* data or error string */
+}__attribute__((packed));
+
+#define th_block th_u.tu_block
+#define th_code th_u.tu_code
+#define th_stuff th_u.tu_stuff
+#define th_msg th_data
+
+/*
+ * Error codes.
+ */
+#define EUNDEF 0 /* not defined */
+#define ENOTFOUND 1 /* file not found */
+#define EACCESS 2 /* access violation */
+#define ENOSPACE 3 /* disk full or allocation exceeded */
+#define EBADOP 4 /* illegal KDUMP operation */
+#define EBADID 5 /* unknown transfer ID */
+#define EEXISTS 6 /* file already exists */
+#define ENOUSER 7 /* no such user */
+
+#define DEBUG 0
+#define WRITE_DEBUG 0
+#define KDUMPD_DEBUG_LEVEL LOG_ALERT
+#define KDP_LARGE_CRASHDUMP_PKT_SIZE (1440 - sizeof(struct udpiphdr))
+
+#endif
diff --git a/network_cmds/kdumpd.tproj/kdumpd.8 b/network_cmds/kdumpd.tproj/kdumpd.8
new file mode 100755
index 0000000..8ce4a8e
--- /dev/null
+++ b/network_cmds/kdumpd.tproj/kdumpd.8
@@ -0,0 +1,83 @@
+.\" Copyright (c) 1983, 1991, 1993
+.\" The Regents of the University of California. All rights reserved.
+.\"
+.\" 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.
+.\"
+.\" @(#)tftpd.8 8.1 (Berkeley) 6/4/93
+.\" $FreeBSD: src/libexec/tftpd/tftpd.8,v 1.15 2001/07/15 07:53:42 dd Exp $
+.\"
+.Dd June 10, 2020
+.Dt KDUMPD 8
+.Os
+.Sh NAME
+.Nm kdumpd
+.Nd Mac OS X remote kernel core dump server
+.Sh SYNOPSIS
+.Nm /usr/libexec/kdumpd
+.Op Ar directory
+.Sh DESCRIPTION
+.Nm Kdumpd
+is a server which receives
+kernel states in the form of
+a core dump from a remote
+Mac OS X machine.
+The
+.Tn kdumpd
+server operates
+on UDP port 1069, although this
+may be configurable in the future.
+The server should be started by
+.Xr launchctl 1 .
+.Pp
+The server should have the user ID
+with the lowest possible privilege,
+usually the user "nobody".
+.Pp
+By default the server stores kernel cores
+in the directory
+.Pa /var/tmp/PanicDumps .
+The directory needs to already exist for kdumpd
+to save core dumps.
+.Pp
+The server returns an EEXIST error
+to the remote kernel if it receives a
+request for an existing file - i.e.
+only new files can be created. The server
+also disallows path specifications in the
+incoming file name.
+.Sh HISTORY
+The
+.Nm
+command is based on Berkeley
+.Xr tftpd 8 ,
+by way of FreeBSD, with several modifications.
+.Sh SEE ALSO
+.Xr launchd 8 ,
+.Xr launchctl 1 ,
+.Xr launchd.plist 5
diff --git a/network_cmds/kdumpd.tproj/kdumpd.c b/network_cmds/kdumpd.tproj/kdumpd.c
new file mode 100644
index 0000000..61762fe
--- /dev/null
+++ b/network_cmds/kdumpd.tproj/kdumpd.c
@@ -0,0 +1,726 @@
+/*
+ * Copyright (c) 1983, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * 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.
+ */
+
+#include <sys/cdefs.h>
+
+#ifndef lint
+__unused static const char copyright[] =
+"@(#) Copyright (c) 1983, 1993\n\
+ The Regents of the University of California. All rights reserved.\n";
+#endif /* not lint */
+
+/* Mac OS X kernel core dump server, based on the BSD trivial file
+ * transfer protocol server (FreeBSD distribution), with several
+ * modifications. This server is *not* compatible with tftp, as the
+ * protocol has changed considerably.
+ */
+
+/*
+ * Based on the trivial file transfer protocol server.
+ *
+ * The original version included many modifications by Jim Guyton
+ * <guyton@rand-unix>.
+ */
+
+#include <sys/param.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <sys/mman.h>
+
+#include <netinet/in.h>
+#include "kdump.h"
+#include <arpa/inet.h>
+
+#include <assert.h>
+#include <stdint.h>
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <netdb.h>
+#include <pwd.h>
+#include <setjmp.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <syslog.h>
+#include <unistd.h>
+#include <libkern/OSByteOrder.h>
+
+#include "kdumpsubs.h"
+
+#define DEFAULT_KDUMPD_PORTNO (1069)
+#define TIMEOUT 2
+
+int peer;
+int rexmtval = TIMEOUT;
+int maxtimeout = 25 * TIMEOUT;
+
+#define PKTSIZE SEGSIZE+6
+
+char buf[MAXIMUM_KDP_PKTSIZE];
+char ackbuf[MAXIMUM_KDP_PKTSIZE];
+struct sockaddr_in from;
+socklen_t fromlen;
+
+void kdump __P((struct kdumphdr *, int));
+
+/*
+ * Null-terminated directory prefix list for absolute pathname requests and
+ * search list for relative pathname requests.
+ *
+ * MAXDIRS should be at least as large as the number of arguments that
+ * inetd allows (currently 20).
+ */
+#define MAXDIRS 20
+static struct dirlist {
+ char *name;
+ int len;
+} dirs[MAXDIRS+1];
+static int suppress_naks;
+static int logging = 1;
+static int ipchroot;
+static int server_mode = 1;
+
+static char *errtomsg __P((int));
+static void nak __P((int));
+static char * __P(verifyhost(struct sockaddr_in *));
+uint32_t kdp_crashdump_pkt_size = (SEGSIZE + (sizeof(struct kdumphdr)));
+uint32_t kdp_crashdump_seg_size = SEGSIZE;
+
+#define KDP_FEATURE_MASK_STRING "features"
+enum {KDP_FEATURE_LARGE_CRASHDUMPS = 1, KDP_FEATURE_LARGE_PKT_SIZE = 2};
+
+uint32_t kdp_crashdump_feature_mask;
+uint32_t kdp_feature_large_crashdumps, kdp_feature_large_packets;
+
+int
+main(argc, argv)
+ int argc;
+ char *argv[];
+{
+ register struct kdumphdr *tp;
+ register int n;
+ int ch, on;
+ struct sockaddr_in sin;
+ char *chroot_dir = NULL;
+ struct passwd *nobody;
+ char *chuser = "nobody";
+
+ openlog("kdumpd", LOG_PID | LOG_NDELAY, LOG_FTP);
+ while ((ch = getopt(argc, argv, "cClns:u:w")) != -1) {
+ switch (ch) {
+ case 'c':
+ ipchroot = 1;
+ break;
+ case 'C':
+ ipchroot = 2;
+ break;
+ case 'l':
+ logging = 1;
+ break;
+ case 'n':
+ suppress_naks = 1;
+ break;
+ case 's':
+ chroot_dir = optarg;
+ break;
+ case 'u':
+ chuser = optarg;
+ break;
+ case 'w':
+ server_mode = 0;
+ break;
+ default:
+ syslog(LOG_WARNING, "ignoring unknown option -%c", ch);
+ }
+ }
+
+ if (optind < argc) {
+ struct dirlist *dirp;
+
+ /* Get list of directory prefixes. Skip relative pathnames. */
+ for (dirp = dirs; optind < argc && dirp < &dirs[MAXDIRS];
+ optind++) {
+ if (argv[optind][0] == '/') {
+ dirp->name = argv[optind];
+ dirp->len = strlen(dirp->name);
+ dirp++;
+ }
+ }
+ }
+ else if (chroot_dir) {
+ dirs->name = "/";
+ dirs->len = 1;
+ }
+ if (ipchroot && chroot_dir == NULL) {
+ syslog(LOG_ERR, "-c requires -s");
+ exit(1);
+ }
+
+ /* If we are not in server mode, skip the whole 'inetd' logic below. */
+ if (server_mode) {
+ on = 1;
+ if (ioctl(0, FIONBIO, &on) < 0) {
+ syslog(LOG_ERR, "ioctl(FIONBIO): %m");
+ exit(1);
+ }
+ fromlen = sizeof (from);
+ n = recvfrom(0, buf, sizeof (buf), 0,
+ (struct sockaddr *)&from, &fromlen);
+ if (n < 0) {
+ syslog(LOG_ERR, "recvfrom: %m");
+ exit(1);
+ }
+ /*
+ * Now that we have read the message out of the UDP
+ * socket, we fork and exit. Thus, inetd will go back
+ * to listening to the kdump port, and the next request
+ * to come in will start up a new instance of kdumpd.
+ *
+ * We do this so that inetd can run kdumpd in "wait" mode.
+ * The problem with kdumpd running in "nowait" mode is that
+ * inetd may get one or more successful "selects" on the
+ * kdump port before we do our receive, so more than one
+ * instance of kdumpd may be started up. Worse, if kdumpd
+ * breaks before doing the above "recvfrom", inetd would
+ * spawn endless instances, clogging the system.
+ */
+ {
+ int pid;
+ int i;
+ socklen_t j;
+
+ for (i = 1; i < 20; i++) {
+ pid = fork();
+ if (pid < 0) {
+ sleep(i);
+ /*
+ * flush out to most recently sent request.
+ *
+ * This may drop some requests, but those
+ * will be resent by the clients when
+ * they timeout. The positive effect of
+ * this flush is to (try to) prevent more
+ * than one kdumpd being started up to service
+ * a single request from a single client.
+ */
+ j = sizeof from;
+ i = recvfrom(0, buf, sizeof (buf), 0,
+ (struct sockaddr *)&from, &j);
+ if (i > 0) {
+ n = i;
+ fromlen = j;
+ }
+ } else {
+ break;
+ }
+ }
+ if (pid < 0) {
+ syslog(LOG_ERR, "fork: %m");
+ exit(1);
+ } else if (pid != 0) {
+ exit(0);
+ }
+ }
+ }
+
+ /*
+ * Since we exit here, we should do that only after the above
+ * recvfrom to keep inetd from constantly forking should there
+ * be a problem. See the above comment about system clogging.
+ */
+ if (chroot_dir) {
+ if (ipchroot) {
+ char tempchroot[MAXPATHLEN];
+ char *tempaddr;
+ struct stat sb;
+ int statret;
+
+ tempaddr = inet_ntoa(from.sin_addr);
+ snprintf(tempchroot, sizeof(tempchroot), "%s/%s", chroot_dir, tempaddr);
+ statret = stat(tempchroot, &sb);
+ if (((sb.st_mode & S_IFMT ) == S_IFDIR) &&
+ (statret == 0 || (statret == -1 && ipchroot == 1)))
+ chroot_dir = tempchroot;
+ }
+ /* Must get this before chroot because /etc might go away */
+ if ((nobody = getpwnam(chuser)) == NULL) {
+ syslog(LOG_ERR, "%s: no such user", chuser);
+ exit(1);
+ }
+ if (chroot(chroot_dir)) {
+ syslog(LOG_ERR, "chroot: %s: %m", chroot_dir);
+ exit(1);
+ }
+ chdir( "/" );
+ setuid(nobody->pw_uid);
+ } else if (0 != chdir(dirs->name)) {
+ syslog(LOG_ERR, "chdir%s: %m", dirs->name);
+ }
+
+ from.sin_family = AF_INET;
+ alarm(0);
+ close(0);
+ close(1);
+ peer = socket(AF_INET, SOCK_DGRAM, 0);
+ if (peer < 0) {
+ syslog(LOG_ERR, "socket: %m");
+ exit(1);
+ }
+ memset(&sin, 0, sizeof(sin));
+ sin.sin_family = AF_INET;
+
+ if (!server_mode) {
+ sin.sin_addr.s_addr = htonl(INADDR_ANY);
+ sin.sin_port = htons((uint16_t) DEFAULT_KDUMPD_PORTNO);
+ }
+
+ if (bind(peer, (struct sockaddr *)&sin, sizeof (sin)) < 0) {
+ syslog(LOG_ERR, "bind: %m");
+ exit(1);
+ }
+
+ if (!server_mode) {
+ /*
+ * Wait for an incoming message from a remote peer, note that we need to
+ * populate n since kdump() expect the first message to be in buf
+ * already.
+ */
+ socklen_t slen = sizeof(from);
+ n = recvfrom(peer, buf, sizeof(buf), 0,
+ (struct sockaddr *) &from, &slen);
+ if (n <= 0) {
+ syslog(LOG_ERR, "recvfrom: %m");
+ exit(1);
+ }
+ }
+
+ if (connect(peer, (struct sockaddr *)&from, sizeof(from)) < 0) {
+ syslog(LOG_ERR, "connect: %m");
+ exit(1);
+ }
+ tp = (struct kdumphdr *)buf;
+ tp->th_opcode = ntohs(tp->th_opcode);
+ if (tp->th_opcode == WRQ)
+ kdump(tp, n);
+ exit(1);
+}
+
+struct formats;
+int validate_access __P((char **, int));
+
+void recvfile __P((struct formats *));
+
+struct formats {
+ char *f_mode;
+ int (*f_validate) __P((char **, int));
+
+ void (*f_recv) __P((struct formats *));
+ int f_convert;
+} formats[] = {
+ { "netascii", validate_access, recvfile, 1 },
+ { "octet", validate_access, recvfile, 0 },
+ { 0 }
+};
+
+/*
+ * Handle initial connection protocol.
+ */
+void
+kdump(tp, size)
+ struct kdumphdr *tp;
+ int size;
+{
+ register char *cp;
+ int first = 1, ecode;
+ register struct formats *pf;
+ char *filename, *mode = NULL;
+
+ filename = cp = tp->th_stuff;
+again:
+ while (cp < buf + size) {
+ if (*cp == '\0')
+ break;
+ cp++;
+ }
+ if (*cp != '\0') {
+ nak(EBADOP);
+ exit(1);
+ }
+ if (first) {
+ mode = ++cp;
+ first = 0;
+ goto again;
+ }
+ for (cp = mode; *cp; cp++)
+ if (isupper(*cp))
+ *cp = tolower(*cp);
+
+ cp++;
+ if (strncmp(KDP_FEATURE_MASK_STRING, cp, sizeof(KDP_FEATURE_MASK_STRING)) == 0) {
+ kdp_crashdump_feature_mask = ntohl(*(uint32_t *) (cp + sizeof(KDP_FEATURE_MASK_STRING)));
+ kdp_feature_large_crashdumps = kdp_crashdump_feature_mask & KDP_FEATURE_LARGE_CRASHDUMPS;
+ kdp_feature_large_packets = kdp_crashdump_feature_mask & KDP_FEATURE_LARGE_PKT_SIZE;
+
+ if (kdp_feature_large_packets) {
+ kdp_crashdump_pkt_size = KDP_LARGE_CRASHDUMP_PKT_SIZE;
+ kdp_crashdump_seg_size = kdp_crashdump_pkt_size - sizeof(struct kdumphdr);
+ }
+ syslog(KDUMPD_DEBUG_LEVEL, "Received feature mask %s:0x%x", cp, kdp_crashdump_feature_mask);
+ } else
+ syslog(KDUMPD_DEBUG_LEVEL, "Unable to locate feature mask, mode: %s", mode);
+
+ for (pf = formats; pf->f_mode; pf++)
+ if (strcmp(pf->f_mode, mode) == 0)
+ break;
+ if (pf->f_mode == 0) {
+ nak(EBADOP);
+ exit(1);
+ }
+ ecode = (*pf->f_validate)(&filename, tp->th_opcode);
+ if (logging) {
+ syslog(KDUMPD_DEBUG_LEVEL, "%s: %s request for %s: %s", verifyhost(&from),
+ tp->th_opcode == WRQ ? "write" : "read",
+ filename, errtomsg(ecode));
+ }
+ if (ecode) {
+ /*
+ * Avoid storms of naks to a RRQ broadcast for a relative
+ * bootfile pathname from a diskless Sun.
+ */
+ if (suppress_naks && *filename != '/' && ecode == ENOTFOUND)
+ exit(0);
+ nak(ecode);
+ exit(1);
+ }
+ if (tp->th_opcode == WRQ)
+ (*pf->f_recv)(pf);
+
+ exit(0);
+}
+
+
+FILE *file;
+
+/*
+ * Validate file access. We only allow storage of files that do not already
+ * exist, and that do not include directory specifiers in their pathnames.
+ * This is because kernel coredump filenames should always be of the form
+ * "core-version-IP as dotted quad-random string" as in :
+ * core-custom-17.202.40.204-a75b4eec
+ * The file is written to the directory supplied as the first argument
+ * in inetd.conf
+ */
+
+int
+validate_access(char **filep, int mode)
+{
+ struct stat stbuf;
+ int fd;
+ char *filename = *filep;
+ static char pathname[MAXPATHLEN];
+
+ if (strstr(filename, "/") || strstr(filename, ".."))
+ return (EACCESS);
+
+ snprintf(pathname, sizeof(pathname), "./%s", filename);
+
+ if (0 == stat(pathname, &stbuf))
+ return (EEXIST);
+
+ if (errno != ENOENT)
+ return (errno);
+
+
+ fd = open(filename, O_RDWR|O_CREAT|O_TRUNC , S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH);
+
+ if (fd < 0)
+ return (errno + 100);
+
+ file = fdopen(fd, (mode == RRQ)? "r":"w");
+ if (file == NULL) {
+ return errno+100;
+ }
+
+ return (0);
+}
+
+int timeout;
+jmp_buf timeoutbuf;
+
+void
+timer()
+{
+
+ timeout += rexmtval;
+ if (timeout >= maxtimeout)
+ {
+ longjmp(timeoutbuf, 2);
+ }
+ longjmp(timeoutbuf, 1);
+}
+
+void
+justquit()
+{
+ exit(0);
+}
+
+/*
+ * Receive a file.
+ */
+void
+recvfile(pf)
+ struct formats *pf;
+{
+ struct kdumphdr *dp, *w_init();
+ register struct kdumphdr *ap; /* ack buffer */
+ register int n, size;
+ volatile unsigned int block;
+ volatile unsigned int jmpval = 0;
+
+ signal(SIGALRM, timer);
+ dp = w_init();
+ ap = (struct kdumphdr *)ackbuf;
+ block = 0;
+ do {
+send_seek_ack: timeout = 0;
+ if (block == 0)
+ ap->th_opcode = htons((u_short)ACK | ((kdp_feature_large_crashdumps | kdp_feature_large_packets) << 8));
+ else
+ ap->th_opcode = htons((u_short)ACK);
+ ap->th_block = htonl((unsigned int)block);
+ block++;
+ jmpval = setjmp(timeoutbuf);
+ if (2 == jmpval)
+ {
+ syslog (LOG_ERR, "Timing out and flushing file to disk");
+ goto flushfile;
+ }
+send_ack:
+ if (send(peer, ackbuf, 6 , 0) != 6) {
+ syslog(LOG_ERR, "write: %m");
+ goto abort;
+ }
+ write_behind(file, pf->f_convert);
+ for ( ; ; ) {
+ alarm(rexmtval);
+ n = recv(peer, dp, kdp_crashdump_pkt_size, 0);
+ alarm(0);
+ if (n < 0) { /* really? */
+ syslog(LOG_ERR, "read: %m");
+ goto abort;
+ }
+ dp->th_opcode = ntohs((u_short)dp->th_opcode);
+ dp->th_block = ntohl((unsigned int)dp->th_block);
+#if DEBUG
+ syslog(KDUMPD_DEBUG_LEVEL, "Received packet type %u, block %u\n", (unsigned)dp->th_opcode, (unsigned)dp->th_block);
+#endif
+
+ if (dp->th_opcode == ERROR)
+ goto abort;
+
+ if (dp->th_opcode == KDP_EOF)
+ {
+ syslog (LOG_ERR, "Received last panic dump packet");
+ goto final_ack;
+ }
+ if (dp->th_opcode == KDP_SEEK)
+ {
+ if (dp->th_block == block)
+ {
+ off_t crashdump_offset = 0;
+ unsigned int tempoff = 0;
+
+ if (kdp_feature_large_crashdumps) {
+ crashdump_offset = OSSwapBigToHostInt64((*(uint64_t *)dp->th_data));
+ }
+ else {
+ bcopy (dp->th_data, &tempoff, sizeof(unsigned int));
+ crashdump_offset = ntohl(tempoff);
+ }
+
+#if DEBUG
+ syslog(KDUMPD_DEBUG_LEVEL, "Seeking to offset 0x%llx\n", crashdump_offset);
+#endif
+ errno = 0;
+ lseek(fileno (file), crashdump_offset, SEEK_SET);
+ if (errno)
+ syslog (LOG_ERR, "lseek: %m");
+
+ goto send_seek_ack;
+ }
+ (void) synchnet(peer);
+ if (dp->th_block == (block-1))
+ {
+ syslog (LOG_DAEMON|LOG_ERR, "Retransmitting seek ack - current block %u, received block %u", block, dp->th_block);
+ goto send_ack; /* rexmit */
+ }
+ }
+
+ if (dp->th_opcode == DATA) {
+ if (dp->th_block == block) {
+ break; /* normal */
+ }
+ /* Re-synchronize with the other side */
+ (void) synchnet(peer);
+ if (dp->th_block == (block-1))
+ {
+ syslog (LOG_DAEMON|LOG_ERR, "Retransmitting ack - current block %u, received block %u", block, dp->th_block);
+ goto send_ack; /* rexmit */
+ }
+ else
+ syslog (LOG_DAEMON|LOG_ERR, "Not retransmitting ack - current block %u, received block %u", block, dp->th_block);
+ }
+ }
+#if DEBUG
+ syslog(KDUMPD_DEBUG_LEVEL, "Writing block sized %u, current offset 0x%llx\n", n - 6, ftello(file));
+#endif
+ size = writeit(file, &dp, n - 6, pf->f_convert);
+ if (size != (n-6)) { /* ahem */
+ if (size < 0) nak(errno + 100);
+ else nak(ENOSPACE);
+ goto abort;
+ }
+ } while (dp->th_opcode != KDP_EOF);
+
+final_ack:
+ ap->th_opcode = htons((u_short)ACK); /* send the "final" ack */
+ ap->th_block = htonl((unsigned int) (block));
+ (void) send(peer, ackbuf, 6, 0);
+flushfile:
+ write_behind(file, pf->f_convert);
+ (void) fclose(file); /* close data file */
+ syslog (LOG_ERR, "file closed, sending final ACK\n");
+
+ signal(SIGALRM, justquit); /* just quit on timeout */
+ alarm(rexmtval);
+ n = recv(peer, buf, sizeof (buf), 0); /* normally times out and quits */
+ alarm(0);
+ if (n >= 6 && /* if read some data */
+ dp->th_opcode == DATA && /* and got a data block */
+ block == dp->th_block) { /* then my last ack was lost */
+ (void) send(peer, ackbuf, 6, 0); /* resend final ack */
+ }
+abort:
+ return;
+}
+
+/* update if needed, when adding new errmsgs */
+#define MAXERRMSGLEN 40
+
+struct errmsg {
+ int e_code;
+ char *e_msg;
+} errmsgs[] = {
+ { EUNDEF, "Undefined error code" },
+ { ENOTFOUND, "File not found" },
+ { EACCESS, "Access violation" },
+ { ENOSPACE, "Disk full or allocation exceeded" },
+ { EBADOP, "Illegal KDUMP operation" },
+ { EBADID, "Unknown transfer ID" },
+ { EEXISTS, "File already exists" },
+ { ENOUSER, "No such user" },
+ { -1, 0 }
+};
+
+static char *
+errtomsg(error)
+ int error;
+{
+ static char buf[20];
+ register struct errmsg *pe;
+ if (error == 0)
+ return "success";
+ for (pe = errmsgs; pe->e_code >= 0; pe++)
+ if (pe->e_code == error)
+ return pe->e_msg;
+ snprintf(buf, sizeof(buf), "error %d", error);
+ return buf;
+}
+
+/*
+ * Send a nak packet (error message).
+ * Error code passed in is one of the
+ * standard KDUMP codes, or a UNIX errno
+ * offset by 100.
+ */
+static void
+nak(error)
+ int error;
+{
+ register struct kdumphdr *tp;
+ int length;
+ register struct errmsg *pe;
+
+ tp = (struct kdumphdr *)buf;
+ tp->th_opcode = htons((u_short)ERROR);
+ tp->th_code = htons((unsigned int)error);
+ for (pe = errmsgs; pe->e_code >= 0; pe++)
+ if (pe->e_code == error)
+ break;
+ if (pe->e_code < 0) {
+ pe->e_msg = strerror(error - 100);
+ tp->th_code = EUNDEF; /* set 'undef' errorcode */
+ }
+ if (strlen(pe->e_msg) > MAXERRMSGLEN) {
+ syslog(LOG_ERR, "nak: error msg too long");
+ return;
+ }
+
+ strlcpy(tp->th_msg, pe->e_msg, MAXERRMSGLEN);
+ length = strlen(pe->e_msg);
+ tp->th_msg[length] = '\0';
+ length += 5;
+ if (send(peer, buf, length, 0) != length)
+ syslog(LOG_ERR, "nak: %m");
+
+ return;
+}
+
+static char *
+verifyhost(fromp)
+ struct sockaddr_in *fromp;
+{
+ struct hostent *hp;
+
+ hp = gethostbyaddr((char *)&fromp->sin_addr, sizeof(fromp->sin_addr),
+ fromp->sin_family);
+ if(hp)
+ return hp->h_name;
+ else
+ return inet_ntoa(fromp->sin_addr);
+}
diff --git a/network_cmds/kdumpd.tproj/kdumpsubs.c b/network_cmds/kdumpd.tproj/kdumpsubs.c
new file mode 100644
index 0000000..283ca62
--- /dev/null
+++ b/network_cmds/kdumpd.tproj/kdumpsubs.c
@@ -0,0 +1,273 @@
+/*
+ * Copyright (c) 1983, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * 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.
+ * 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.
+ */
+
+/* Simple minded read-ahead/write-behind subroutines for tftp user and
+ server. Written originally with multiple buffers in mind, but current
+ implementation has two buffer logic wired in.
+
+ Todo: add some sort of final error check so when the write-buffer
+ is finally flushed, the caller can detect if the disk filled up
+ (or had an i/o error) and return a nak to the other side.
+
+ Jim Guyton 10/85
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+#ifdef HAVE_SYS_FILIO_H
+#include <sys/filio.h>
+#endif
+#include <netinet/in.h>
+#include "kdump.h"
+
+#include <stdio.h>
+#include <unistd.h>
+#include <syslog.h>
+
+#include "kdumpsubs.h"
+
+#define PKTSIZE SEGSIZE+6 /* should be moved to kdump.h */
+
+struct bf {
+ int counter; /* size of data in buffer, or flag */
+ char buf[MAXIMUM_KDP_PKTSIZE]; /* room for data packet */
+} bfs[2];
+
+ /* Values for bf.counter */
+#define BF_ALLOC -3 /* alloc'd but not yet filled */
+#define BF_FREE -2 /* free */
+/* [-1 .. SEGSIZE] = size of data in the data buffer */
+
+static int nextone; /* index of next buffer to use */
+static int current; /* index of buffer in use */
+
+ /* control flags for crlf conversions */
+int newline = 0; /* fillbuf: in middle of newline expansion */
+int prevchar = -1; /* putbuf: previous char (cr check) */
+
+static struct kdumphdr *rw_init __P ((int));
+
+struct kdumphdr *w_init() { return rw_init(0); } /* write-behind */
+struct kdumphdr *r_init() { return rw_init(1); } /* read-ahead */
+
+extern uint32_t kdp_crashdump_pkt_size;
+extern uint32_t kdp_crashdump_seg_size;
+
+/* init for either read-ahead or write-behind */
+/* zero for write-behind, one for read-head */
+static struct kdumphdr *
+rw_init(int x)
+{
+ newline = 0; /* init crlf flag */
+ prevchar = -1;
+ bfs[0].counter = BF_ALLOC; /* pass out the first buffer */
+ current = 0;
+ bfs[1].counter = BF_FREE;
+ nextone = x; /* ahead or behind? */
+ return (struct kdumphdr *)bfs[0].buf;
+}
+
+
+/* Have emptied current buffer by sending to net and getting ack.
+ Free it and return next buffer filled with data.
+ */
+/* if true, convert to ascii */
+/* file opened for read */
+
+/* int */
+/* readit(FILE *file, struct kdumphdr **dpp, int convert) */
+/* { */
+/* struct bf *b; */
+
+/* bfs[current].counter = BF_FREE; /\* free old one *\/ */
+/* current = !current; /\* "incr" current *\/ */
+
+/* b = &bfs[current]; /\* look at new buffer *\/ */
+/* if (b->counter == BF_FREE) /\* if it's empty *\/ */
+/* read_ahead(file, convert); /\* fill it *\/ */
+/* /\* assert(b->counter != BF_FREE);*\//\* check *\/ */
+/* *dpp = (struct kdumphdr *)b->buf; /\* set caller's ptr *\/ */
+/* return b->counter; */
+/* } */
+
+/*
+ * fill the input buffer, doing ascii conversions if requested
+ * conversions are lf -> cr,lf and cr -> cr, nul
+ */
+/* FILE *file; file opened for read */
+/* int convert; if true, convert to ascii */
+void
+read_ahead(FILE *file, int convert)
+{
+ register int i;
+ register char *p;
+ register int c;
+ struct bf *b;
+ struct kdumphdr *dp;
+
+ b = &bfs[nextone]; /* look at "next" buffer */
+ if (b->counter != BF_FREE) /* nop if not free */
+ return;
+ nextone = !nextone; /* "incr" next buffer ptr */
+
+ dp = (struct kdumphdr *)b->buf;
+
+ if (convert == 0) {
+ b->counter = read(fileno(file), dp->th_data, kdp_crashdump_seg_size);
+ return;
+ }
+
+ p = dp->th_data;
+ for (i = 0 ; i < kdp_crashdump_seg_size; i++) {
+ if (newline) {
+ if (prevchar == '\n')
+ c = '\n'; /* lf to cr,lf */
+ else c = '\0'; /* cr to cr,nul */
+ newline = 0;
+ }
+ else {
+ c = getc(file);
+ if (c == EOF) break;
+ if (c == '\n' || c == '\r') {
+ prevchar = c;
+ c = '\r';
+ newline = 1;
+ }
+ }
+ *p++ = c;
+ }
+ b->counter = (int)(p - dp->th_data);
+}
+
+/* Update count associated with the buffer, get new buffer
+ from the queue. Calls write_behind only if next buffer not
+ available.
+ */
+int
+writeit(FILE *file, struct kdumphdr **dpp, int ct, int convert)
+{
+ bfs[current].counter = ct; /* set size of data to write */
+ current = !current; /* switch to other buffer */
+ if (bfs[current].counter != BF_FREE) /* if not free */
+ (void)write_behind(file, convert); /* flush it */
+ bfs[current].counter = BF_ALLOC; /* mark as alloc'd */
+ *dpp = (struct kdumphdr *)bfs[current].buf;
+ return ct; /* this is a lie of course */
+}
+
+
+/*
+ * Output a buffer to a file, converting from netascii if requested.
+ * CR,NUL -> CR and CR,LF => LF.
+ * Note spec is undefined if we get CR as last byte of file or a
+ * CR followed by anything else. In this case we leave it alone.
+ */
+int
+write_behind(FILE *file, int convert)
+{
+ char *buf;
+ int count;
+ register int ct;
+ register char *p;
+ register int c; /* current character */
+ struct bf *b;
+ struct kdumphdr *dp;
+
+ b = &bfs[nextone];
+ if (b->counter < -1) /* anything to flush? */
+ return 0; /* just nop if nothing to do */
+
+ count = b->counter; /* remember byte count */
+ b->counter = BF_FREE; /* reset flag */
+ dp = (struct kdumphdr *)b->buf;
+ nextone = !nextone; /* incr for next time */
+ buf = dp->th_data;
+
+ if (count <= 0) return -1; /* nak logic? */
+
+ if (convert == 0)
+ return write(fileno(file), buf, count);
+
+ p = buf;
+ ct = count;
+ while (ct--) { /* loop over the buffer */
+ c = *p++; /* pick up a character */
+ if (prevchar == '\r') { /* if prev char was cr */
+ if (c == '\n') /* if have cr,lf then just */
+ fseek(file, -1, 1); /* smash lf on top of the cr */
+ else
+ if (c == '\0') /* if have cr,nul then */
+ goto skipit; /* just skip over the putc */
+ /* else just fall through and allow it */
+ }
+ putc(c, file);
+skipit:
+ prevchar = c;
+ }
+ return count;
+}
+
+
+/* When an error has occurred, it is possible that the two sides
+ * are out of synch. Ie: that what I think is the other side's
+ * response to packet N is really their response to packet N-1.
+ *
+ * So, to try to prevent that, we flush all the input queued up
+ * for us on the network connection on our host.
+ *
+ * We return the number of packets we flushed (mostly for reporting
+ * when trace is active).
+ */
+
+/*int f;socket to flush */
+int
+synchnet(int f)
+{
+ int i, j = 0;
+ char rbuf[kdp_crashdump_pkt_size];
+ struct sockaddr_in from;
+ socklen_t fromlen;
+
+ while (1) {
+ (void) ioctl(f, FIONREAD, &i);
+ if (i) {
+ j++;
+ fromlen = sizeof from;
+ (void) recvfrom(f, rbuf, sizeof (rbuf), 0,
+ (struct sockaddr *)&from, &fromlen);
+ } else {
+ return(j);
+ }
+ }
+}
diff --git a/network_cmds/kdumpd.tproj/kdumpsubs.h b/network_cmds/kdumpd.tproj/kdumpsubs.h
new file mode 100644
index 0000000..b7ec1c6
--- /dev/null
+++ b/network_cmds/kdumpd.tproj/kdumpsubs.h
@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ *
+ * "Portions Copyright (c) 1999 Apple Computer, Inc. All Rights
+ * Reserved. This file contains Original Code and/or Modifications of
+ * Original Code as defined in and that are subject to the Apple Public
+ * Source License Version 1.0 (the 'License'). You may not use this file
+ * except in compliance with the License. Please obtain a copy of the
+ * License at http://www.apple.com/publicsource and read it before using
+ * this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
+ * License for the specific language governing rights and limitations
+ * under the License."
+ *
+ * @APPLE_LICENSE_HEADER_END@
+ */
+/*
+ * Copyright (c) 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * 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.
+ *
+ * @(#)kdumpsubs.h 8.1 (Berkeley) 6/6/93
+ */
+
+/*
+ * Prototypes for read-ahead/write-behind subroutines for kdump user and
+ * server.
+ */
+struct kdumphdr *r_init __P((void));
+void read_ahead __P((FILE *, int));
+int readit __P((FILE *, struct kdumphdr **, int));
+
+int synchnet __P((int));
+
+struct kdumphdr *w_init __P((void));
+int write_behind __P((FILE *, int));
+int writeit __P((FILE *, struct kdumphdr **, int, int));
+