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remote.c
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remote.c
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/* remote.c - core analysis suite
*
* Copyright (C) 1999, 2000, 2001, 2002 Mission Critical Linux, Inc.
* Copyright (C) 2002, 2003, 2004, 2005, 2009, 2011, 2018 David Anderson
* Copyright (C) 2002, 2003, 2004, 2005, 2009, 2011, 2018 Red Hat, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include "defs.h"
#include <netinet/in.h>
#include <netdb.h>
#include <net/if_arp.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <netinet/tcp.h>
#include <elf.h>
#define FAILMSG "FAIL "
#define DONEMSG "DONE "
#define DATAMSG "DATA "
#define DATA_HDRSIZE (13) /* strlen("XXXX ") + strlen("0131072") + NULL */
#define MAXRECVBUFSIZE (131072)
#define READBUFSIZE (MAXRECVBUFSIZE+DATA_HDRSIZE)
#ifdef DAEMON
/*
* The remote daemon.
*/
static int daemon_init(void);
static ulong daemon_htol(char *);
static int daemon_is_elf_file(char *);
static int daemon_mount_point(char *);
static int daemon_find_booted_kernel(char *);
static char **daemon_build_searchdirs(int);
static int daemon_is_directory(char *);
static int daemon_file_readable(char *);
static int daemon_parse_line(char *, char **);
static char *daemon_clean_line(char *);
int console(char *, ...);
static void daemon_socket_options(int);
static char *no_debugging_symbols_found(char *);
static ulong daemon_filesize(int);
static int daemon_find_module(char *, char *, char *);
static int daemon_search_directory_tree(char *, char *, char *);
static int daemon_file_exists(char *, struct stat *);
static int daemon_checksum(char *, long *);
static void daemon_send(void *, int);
static int daemon_proc_version(char *);
static void handle_connection(int);
struct remote_context {
int sock;
int remdebug;
char *remdebugfile;
} remote_context = { 0, 0, "/dev/null" };
struct remote_context *rc = &remote_context;
int
main(int argc, char **argv)
{
int c, sockfd, newsockfd, clilen;
struct sockaddr_in serv_addr, cli_addr;
struct hostent *hp;
ushort tcp_port;
char hostname[MAXHOSTNAMELEN];
tcp_port = 0;
optind = 0;
while ((c = getopt(argc, argv, "vd:")) > 0) {
switch (c)
{
case 'v':
printf("%s %s\n", basename(argv[0]),
/* BASELEVEL_REVISION */ "(deprecated)");
exit(0);
case 'd':
rc->remdebug++;
rc->remdebugfile = optarg;
break;
}
}
console("<parent daemon %d initiated>\n", getpid());
while (argv[optind]) {
if (!tcp_port)
tcp_port = (ushort)atoi(argv[optind]);
optind++;
}
console("port: %d\n", tcp_port);
if (gethostname(hostname, MAXHOSTNAMELEN) < 0) {
console("gethostname failed: %s\n", strerror(errno));
perror("gethostname");
exit(1);
}
console("hostname: %s\n", hostname);
if ((hp = gethostbyname(hostname)) == NULL) {
console("gethostbyname failed: %s\n", hstrerror(h_errno));
perror("gethostbyname");
exit(1);
}
console("attempting daemon_init...\n");
if (!daemon_init())
exit(1);
console("<daemon %d initiated>\n", getpid());
if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) < 0)
exit(1);
BZERO((char *)&serv_addr, sizeof(serv_addr));
serv_addr.sin_family = AF_INET;
BCOPY(hp->h_addr, (char *)&serv_addr.sin_addr, hp->h_length);
serv_addr.sin_port = htons(tcp_port);
daemon_socket_options(sockfd);
if (bind(sockfd, (struct sockaddr *)&serv_addr, sizeof(serv_addr)) < 0){
console("%d: bind failed: %s\n", getpid(), strerror(errno));
exit(1);
}
if (listen(sockfd, 5) < 0) {
console("%d: listen failed: %s\n", getpid(), strerror(errno));
exit(1);
}
for (;;) {
clilen = sizeof(cli_addr);
if ((newsockfd = accept(sockfd, (struct sockaddr *)&cli_addr,
&clilen)) < 0) {
console("%d: accept failed: %s\n", getpid(),
strerror(errno));
exit(1);
}
switch (fork())
{
case -1: exit(1);
case 0: close(sockfd);
handle_connection(newsockfd);
exit(0);
default:
close(newsockfd);
break;
}
close(newsockfd);
}
}
/*
* This probably doesn't do much, but it might reduce the acknowledge
* negotiations somewhat. (?)
*/
static void
daemon_socket_options(int sockfd)
{
int nodelay;
if (setsockopt(sockfd, IPPROTO_TCP, TCP_NODELAY,
(char *)&nodelay, sizeof(nodelay)) < 0)
console("TCP_NODELAY setsockopt error\n");
}
/*
* This is the child daemon that handles the incoming requests.
*/
#define MAX_REMOTE_FDS (10)
static void
handle_connection(int sock)
{
int i;
char recvbuf[BUFSIZE];
char savebuf[BUFSIZE];
char sendbuf[BUFSIZE];
char buf1[BUFSIZE];
char readbuf[READBUFSIZE+1];
char *file;
FILE *tmp, *pipe;
char *p1, *p2, *p3;
size_t cnt;
int fds[MAX_REMOTE_FDS];
int mfd;
ulong addr, total, reqsize, bufsize;
fd_set rfds;
int len, first, retval, done;
struct stat sbuf;
rc->sock = sock;
console("< new connection >\n");
for (i = 0; i < MAX_REMOTE_FDS; i++)
fds[i] = -1;
while (TRUE) {
FD_ZERO(&rfds);
FD_SET(sock, &rfds);
retval = select(sock+1, &rfds, NULL, NULL, NULL);
BZERO(sendbuf, BUFSIZE);
BZERO(recvbuf, BUFSIZE);
switch (read(sock, recvbuf, BUFSIZE-1))
{
case -1:
console("[read returned -1]\n");
continue;
case 0:
console("[read returned 0]\n");
return;
default:
console("[%s]: ", recvbuf);
break;
}
if (STRNEQ(recvbuf, "OPEN ")) {
strcpy(sendbuf, recvbuf);
p1 = strtok(recvbuf, " "); /* OPEN */
file = strtok(NULL, " "); /* filename */
for (i = 0; i < MAX_REMOTE_FDS; i++) {
if (fds[i] == -1)
break;
}
if (i < MAX_REMOTE_FDS) {
if ((fds[i] = open(file, O_RDWR)) < 0) {
if ((fds[i] = open(file, O_RDONLY)) < 0)
strcat(sendbuf, " <FAIL>");
else {
sprintf(buf1,
" %d O_RDONLY %ld", fds[i],
daemon_filesize(fds[i]));
strcat(sendbuf, buf1);
}
} else {
sprintf(buf1, " %d O_RDWR %ld", fds[i],
daemon_filesize(fds[i]));
strcat(sendbuf, buf1);
}
} else
strcat(sendbuf, " <FAIL>");
console("[%s]\n", sendbuf);
daemon_send(sendbuf, strlen(sendbuf));
continue;
} else if (STRNEQ(recvbuf, "READ_LIVE ")) {
strcpy(savebuf, recvbuf);
p1 = strtok(recvbuf, " "); /* READ_LIVE */
p1 = strtok(NULL, " "); /* filename id */
p2 = strtok(NULL, " "); /* address */
p3 = strtok(NULL, " "); /* length */
addr = daemon_htol(p2);
len = atoi(p3);
mfd = atoi(p1);
errno = 0;
BZERO(readbuf, READBUFSIZE);
if (lseek(mfd, addr, SEEK_SET) == -1)
len = 0;
else if (read(mfd, &readbuf[DATA_HDRSIZE], len) != len)
len = 0;
if (!len) {
sprintf(readbuf, "%s%07ld", FAILMSG,
(ulong)errno);
console("[%s]\n", readbuf);
} else {
sprintf(readbuf, "%s%07ld", DONEMSG,(ulong)len);
console("(%ld)\n", len);
}
daemon_send(readbuf, len+DATA_HDRSIZE);
continue;
} else if (STRNEQ(recvbuf, "READ_NETDUMP ")) {
strcpy(savebuf, recvbuf);
p1 = strtok(recvbuf, " "); /* READ_NETDUMP */
p2 = strtok(NULL, " "); /* address */
p3 = strtok(NULL, " "); /* length */
addr = daemon_htol(p2);
len = atoi(p3);
BZERO(readbuf, READBUFSIZE);
errno = 0;
if ((len = read_netdump(UNUSED,
&readbuf[DATA_HDRSIZE], len, UNUSED, addr)) < 0)
len = 0;
if (len) {
sprintf(readbuf, "%s%07ld", DONEMSG,(ulong)len); console("(%ld)\n", (ulong)len);
} else {
sprintf(readbuf, "%s%07ld", FAILMSG,
(ulong)errno);
console("[%s]\n", readbuf);
}
daemon_send(readbuf, len+DATA_HDRSIZE);
continue;
} else if (STRNEQ(recvbuf, "READ_MCLXCD ")) {
strcpy(savebuf, recvbuf);
p1 = strtok(recvbuf, " "); /* READ_MCLXCD */
p2 = strtok(NULL, " "); /* address */
p3 = strtok(NULL, " "); /* length */
addr = daemon_htol(p2);
len = atoi(p3);
errno = 0;
BZERO(readbuf, READBUFSIZE);
if (vas_lseek(addr, SEEK_SET))
len = 0;
else if (vas_read((void *)
&readbuf[DATA_HDRSIZE], len) != len)
len = 0;
if (len) {
sprintf(readbuf, "%s%07ld", DONEMSG,
(ulong)len);
console("(%ld)\n", (ulong)len);
} else {
sprintf(readbuf, "%s%07ld", FAILMSG,
(ulong)errno);
console("[%s]\n", readbuf);
}
daemon_send(readbuf, len+DATA_HDRSIZE);
continue;
} else if (STRNEQ(recvbuf, "CLOSE ")) {
strcpy(savebuf, recvbuf);
p1 = strtok(recvbuf, " "); /* SIZE */
p1 = strtok(NULL, " "); /* filename id */
mfd = atoi(p1);
for (i = retval = 0; i < MAX_REMOTE_FDS; i++) {
if (fds[i] == mfd) {
close(mfd);
fds[i] = -1;
retval = TRUE;
break;
}
}
sprintf(sendbuf, "%s%s", savebuf,
retval ? " OK" : " <FAIL>");
console("[%s]\n", sendbuf);
daemon_send(sendbuf, strlen(sendbuf));
continue;
} else if (STRNEQ(recvbuf, "READ ")) {
strcpy(savebuf, recvbuf);
p1 = strtok(recvbuf, " "); /* READ */
p1 = strtok(NULL, " "); /* filename id */
p2 = strtok(NULL, " "); /* address */
p3 = strtok(NULL, " "); /* length */
addr = daemon_htol(p2);
len = atoi(p3);
mfd = atoi(p1);
BZERO(readbuf, READBUFSIZE);
if (lseek(mfd, addr, SEEK_SET) == -1)
len = 0;
else if (read(mfd, readbuf, len) != len)
len = 0;
if (!len) {
sprintf(readbuf, "%s <FAIL>", savebuf);
len = strlen(readbuf);
console("[%s]\n", readbuf);
} else
console("(%ld)\n", len);
daemon_send(readbuf, len);
continue;
} else if (STRNEQ(recvbuf, "MACHINE_PID")) {
sprintf(sendbuf, "%s %s %d",
recvbuf, MACHINE_TYPE, getpid());
console("[%s]\n", sendbuf);
daemon_send(sendbuf, strlen(sendbuf));
continue;
} else if (STRNEQ(recvbuf, "TYPE ")) {
strcpy(savebuf, recvbuf);
p1 = strtok(recvbuf, " "); /* TYPE */
file = strtok(NULL, " "); /* filename */
if (stat(file, &sbuf) < 0)
sprintf(sendbuf, "%s <FAIL>", savebuf);
else if (daemon_is_elf_file(file))
sprintf(sendbuf, "%s ELF", savebuf);
else if (STREQ(file, "/dev/mem"))
sprintf(sendbuf, "%s DEVMEM", savebuf);
else if (is_netdump(file, NETDUMP_REMOTE))
sprintf(sendbuf, "%s NETDUMP", savebuf);
else if (is_mclx_compressed_dump(file))
sprintf(sendbuf, "%s MCLXCD", savebuf);
else if (is_lkcd_compressed_dump(file))
sprintf(sendbuf, "%s LKCD", savebuf);
else if (is_s390_dump(file))
sprintf(sendbuf, "%s S390D", savebuf);
else
sprintf(sendbuf, "%s UNSUPPORTED", savebuf);
console("[%s]\n", sendbuf);
daemon_send(sendbuf, strlen(sendbuf));
continue;
} else if (STRNEQ(recvbuf, "LINUX_VERSION ")) {
strcpy(savebuf, recvbuf);
p1 = strtok(recvbuf, " "); /* LINUX_VERSION */
file = strtok(NULL, " "); /* filename */
sprintf(readbuf,
"/usr/bin/strings %s | grep 'Linux version'",
file);
if ((pipe = popen(readbuf, "r"))) {
BZERO(readbuf, BUFSIZE);
if (fread(readbuf, sizeof(char), BUFSIZE-1,
pipe) > 0)
strcpy(sendbuf, readbuf);
else
sprintf(sendbuf, "%s <FAIL>", savebuf);
pclose(pipe);
} else
sprintf(sendbuf, "%s <FAIL>", savebuf);
console("[%s] (%d)\n", sendbuf, strlen(sendbuf));
daemon_send(sendbuf, strlen(sendbuf));
continue;
} else if (STRNEQ(recvbuf, "READ_GZIP ")) {
strcpy(savebuf, recvbuf);
p1 = strtok(recvbuf, " "); /* READ_GZIP */
p1 = strtok(NULL, " "); /* bufsize */
bufsize = atol(p1);
file = strtok(NULL, " "); /* filename */
errno = 0;
reqsize = bufsize - DATA_HDRSIZE;
sprintf(readbuf, "/usr/bin/gzip -c %s", file);
if ((pipe = popen(readbuf, "r")) == NULL) {
sprintf(readbuf, "%s%07ld", FAILMSG,
(ulong)errno);
console("[%s]\n", readbuf);
daemon_send(readbuf, DATA_HDRSIZE);
continue;
}
errno = cnt = done = total = first = 0;
while (!done) {
BZERO(readbuf, READBUFSIZE);
cnt = fread(&readbuf[DATA_HDRSIZE],
sizeof(char), reqsize, pipe);
total += cnt;
if (feof(pipe)) {
sprintf(readbuf, "%s%07ld",
DONEMSG, (ulong)cnt);
done = TRUE;
} else if (ferror(pipe)) {
sprintf(readbuf, "%s%07ld", FAILMSG,
(ulong)errno);
done = TRUE;
} else
sprintf(readbuf, "%s%07ld",
DATAMSG, (ulong)cnt);
console("%s[%s]\n", !first++ ? "\n" : "",
readbuf);
daemon_send(readbuf, bufsize);
}
console("GZIP total: %ld\n", total);
pclose(pipe);
continue;
} else if (STRNEQ(recvbuf, "PROC_VERSION")) {
BZERO(readbuf, READBUFSIZE);
if (!daemon_proc_version(readbuf))
sprintf(readbuf, "%s <FAIL>", recvbuf);
console("[%s]\n", readbuf);
daemon_send(readbuf, strlen(readbuf));
continue;
} else if (STRNEQ(recvbuf, "DEBUGGING_SYMBOLS ")) {
strcpy(savebuf, recvbuf);
p1 = strtok(recvbuf, " "); /* DEBUGGING */
p2 = strtok(NULL, " "); /* filename */
sprintf(sendbuf, "%s %s", savebuf,
no_debugging_symbols_found(p2));
console("[%s]\n", sendbuf);
daemon_send(sendbuf, strlen(sendbuf));
continue;
} else if (STRNEQ(recvbuf, "PAGESIZE ")) {
if (strstr(recvbuf, "LIVE"))
sprintf(sendbuf, "%s %d", recvbuf,
(uint)getpagesize());
else if (strstr(recvbuf, "NETDUMP"))
sprintf(sendbuf, "%s %d", recvbuf,
(uint)netdump_page_size());
else if (strstr(recvbuf, "MCLXCD"))
sprintf(sendbuf, "%s %d", recvbuf,
(uint)mclx_page_size());
else if (strstr(recvbuf, "LKCD"))
sprintf(sendbuf, "%s %d", recvbuf,
(uint)lkcd_page_size());
else if (strstr(recvbuf, "S390D"))
sprintf(sendbuf, "%s %d", recvbuf,
s390_page_size());
console("[%s]\n", sendbuf);
daemon_send(sendbuf, strlen(sendbuf));
continue;
} else if (STRNEQ(recvbuf, "FIND_BOOTED_KERNEL")) {
BZERO(readbuf, READBUFSIZE);
if (daemon_find_booted_kernel(readbuf))
sprintf(sendbuf, "%s %s", recvbuf, readbuf);
else
sprintf(sendbuf, "%s <FAIL>", recvbuf);
console("[%s]\n", sendbuf);
daemon_send(sendbuf, strlen(sendbuf));
continue;
} else if (STRNEQ(recvbuf, "FIND_MODULE ")) {
strcpy(savebuf, recvbuf);
strtok(recvbuf, " "); /* FIND_MODULE */
p1 = strtok(NULL, " "); /* release */
p2 = strtok(NULL, " "); /* module */
if (daemon_find_module(p1, p2, buf1)) {
if (daemon_checksum(buf1, &total))
sprintf(sendbuf, "%s %s %lx",
savebuf, buf1, total);
else
sprintf(sendbuf, "%s %s %lx",
savebuf, buf1,
(ulong)0xdeadbeef);
} else
sprintf(sendbuf, "%s <FAIL>", savebuf);
console("[%s]\n", sendbuf);
daemon_send(sendbuf, strlen(sendbuf));
continue;
} else if (STRNEQ(recvbuf, "SUM ")) {
strcpy(savebuf, recvbuf);
p1 = strtok(recvbuf, " "); /* SUM */
p2 = strtok(NULL, " "); /* filename */
if (daemon_checksum(p2, &total))
sprintf(sendbuf, "%s %lx", savebuf, total);
else
sprintf(sendbuf, "%s <FAIL>", savebuf);
console("[%s]\n", sendbuf);
daemon_send(sendbuf, strlen(sendbuf));
continue;
} else if (STRNEQ(recvbuf, "MEMORY ")) {
strcpy(savebuf, recvbuf);
p1 = strtok(recvbuf, " "); /* MEMORY */
p2 = strtok(NULL, " "); /* USED or FREE */
p3 = strtok(NULL, " "); /* MCLXCD, LKCD, etc. */
if (STREQ(p2, "FREE")) {
if (STREQ(p3, "NETDUMP"))
retval = netdump_free_memory();
else if (STREQ(p3, "MCLXCD"))
retval = vas_free_memory(NULL);
else if (STREQ(p3, "LKCD"))
retval = lkcd_free_memory();
else if (STREQ(p3, "S390D"))
retval = s390_free_memory();
}
if (STREQ(p2, "USED")) {
if (STREQ(p3, "NETDUMP"))
retval = netdump_memory_used();
else if (STREQ(p3, "MCLXCD"))
retval = vas_memory_used();
else if (STREQ(p3, "LKCD"))
retval = lkcd_memory_used();
else if (STREQ(p3, "S390D"))
retval = s390_memory_used();
}
sprintf(sendbuf, "%s %d", savebuf, retval);
console("[%s]\n", sendbuf);
daemon_send(sendbuf, strlen(sendbuf));
continue;
} else if (STRNEQ(recvbuf, "MEMORY_DUMP")) {
strcpy(savebuf, recvbuf);
p1 = strtok(recvbuf, " "); /* MEMORY_DUMP */
p1 = strtok(NULL, " "); /* bufsize */
p2 = strtok(NULL, " "); /* MCLXCD, LKCD, etc. */
bufsize = atol(p1);
reqsize = bufsize - DATA_HDRSIZE;
errno = 0;
if ((tmp = tmpfile()) == NULL) {
sprintf(readbuf, "%s%07ld", FAILMSG,
(ulong)errno);
console("[%s]\n", readbuf);
daemon_send(readbuf, DATA_HDRSIZE);
continue;
}
if (STREQ(p2, "NETDUMP"))
retval = netdump_memory_dump(tmp);
else if (STREQ(p2, "MCLXCD"))
vas_memory_dump(tmp);
else if (STREQ(p2, "LKCD"))
lkcd_memory_dump(tmp);
else if (STREQ(p2, "LKCD_VERBOSE")) {
set_lkcd_fp(tmp);
dump_lkcd_environment(0);
set_lkcd_fp(NULL);
} else if (STREQ(p2, "S390D"))
s390_memory_dump(tmp);
rewind(tmp);
errno = cnt = done = total = first = 0;
while (!done) {
BZERO(readbuf, READBUFSIZE);
cnt = fread(&readbuf[DATA_HDRSIZE],
sizeof(char), reqsize, tmp);
total += cnt;
if (feof(tmp)) {
sprintf(readbuf, "%s%07ld",
DONEMSG, (ulong)cnt);
done = TRUE;
} else if (ferror(tmp)) {
sprintf(readbuf, "%s%07ld", FAILMSG,
(ulong)errno);
done = TRUE;
} else
sprintf(readbuf, "%s%07ld",
DATAMSG, (ulong)cnt);
console("%s[%s]\n", !first++ ? "\n" : "",
readbuf);
daemon_send(readbuf, bufsize);
}
console("MEMORY_DUMP total: %ld\n", total);
fclose(tmp);
continue;
} else if (STRNEQ(recvbuf, "NETDUMP_INIT ")) {
strcpy(savebuf, recvbuf);
p1 = strtok(recvbuf, " "); /* NETDUMP_INIT */
p2 = strtok(NULL, " "); /* fd */
p3 = strtok(NULL, " "); /* dumpfile */
mfd = atoi(p2);
for (i = 0; i < MAX_REMOTE_FDS; i++) {
if (fds[i] == mfd) {
close(mfd);
fds[i] = -1;
break;
}
}
sprintf(sendbuf, "%s %s", savebuf,
netdump_init(p3, NULL) ? "OK" : "<FAIL>");
if ((addr = get_netdump_panic_task())) {
sprintf(readbuf, "\npanic_task: %lx\n", addr);
strcat(sendbuf, readbuf);
}
console("[%s]\n", sendbuf);
daemon_send(sendbuf, strlen(sendbuf));
continue;
} else if (STRNEQ(recvbuf, "LKCD_DUMP_INIT ")) {
strcpy(savebuf, recvbuf);
p1 = strtok(recvbuf, " "); /* LKCD_DUMP_INIT */
p2 = strtok(NULL, " "); /* fd */
p3 = strtok(NULL, " "); /* dumpfile */
sprintf(sendbuf, "%s %s", savebuf,
lkcd_dump_init(NULL, atoi(p2), p3) ?
"OK" : "<FAIL>");
if ((addr = get_lkcd_panic_task())) {
sprintf(readbuf, "\npanic_task: %lx\n", addr);
strcat(sendbuf, readbuf);
}
readbuf[0] = NULLCHAR;
get_lkcd_panicmsg(readbuf);
if (strlen(readbuf)) {
strcat(sendbuf, "panicmsg: ");
strcat(sendbuf, readbuf);
}
console("[%s]\n", sendbuf);
daemon_send(sendbuf, strlen(sendbuf));
continue;
} else if (STRNEQ(recvbuf, "READ_LKCD ")) {
strcpy(savebuf, recvbuf);
p1 = strtok(recvbuf, " "); /* READ_LKCD */
p1 = strtok(NULL, " "); /* filename id */
p2 = strtok(NULL, " "); /* address */
p3 = strtok(NULL, " "); /* length */
mfd = atoi(p1);
addr = daemon_htol(p2);
len = atoi(p3);
BZERO(readbuf, READBUFSIZE);
errno = 0;
if (!lkcd_lseek(addr))
len = 0;
else if (lkcd_read((void *)
&readbuf[DATA_HDRSIZE], len) != len)
len = 0;
if (len) {
sprintf(readbuf, "%s%07ld", DONEMSG,(ulong)len);
console("(%ld)\n", (ulong)len);
} else {
sprintf(readbuf, "%s%07ld", FAILMSG,
(ulong)errno);
console("[%s]\n", readbuf);
}
daemon_send(readbuf, len+DATA_HDRSIZE);
continue;
} else if (STRNEQ(recvbuf, "S390_DUMP_INIT ")) {
strcpy(savebuf, recvbuf);
p1 = strtok(recvbuf, " "); /* S390_DUMP_INIT */
p2 = strtok(NULL, " "); /* fd */
p3 = strtok(NULL, " "); /* filename */
mfd = atoi(p2);
for (i = 0; i < MAX_REMOTE_FDS; i++) {
if (fds[i] == mfd) {
close(mfd);
fds[i] = -1;
break;
}
}
sprintf(sendbuf, "%s %s", savebuf,
s390_dump_init(p3) ? "OK" : "<FAIL>");
if ((addr = get_s390_panic_task())) {
sprintf(readbuf, "\npanic_task: %lx\n", addr);
strcat(sendbuf, readbuf);
}
readbuf[0] = NULLCHAR;
get_s390_panicmsg(readbuf);
if (strlen(readbuf)) {
strcat(sendbuf, "panicmsg: ");
strcat(sendbuf, readbuf);
}
console("[%s]\n", sendbuf);
daemon_send(sendbuf, strlen(sendbuf));
continue;
} else if (STRNEQ(recvbuf, "S390X_DUMP_INIT ")) {
strcpy(savebuf, recvbuf);
p1 = strtok(recvbuf, " "); /* S390X_DUMP_INIT */
p2 = strtok(NULL, " "); /* fd */
p3 = strtok(NULL, " "); /* filename */
mfd = atoi(p2);
for (i = 0; i < MAX_REMOTE_FDS; i++) {
if (fds[i] == mfd) {
close(mfd);
fds[i] = -1;
break;
}
}
sprintf(sendbuf, "%s %s", savebuf,
s390x_dump_init(p3) ? "OK" : "<FAIL>");
if ((addr = get_s390x_panic_task())) {
sprintf(readbuf, "\npanic_task: %lx\n", addr);
strcat(sendbuf, readbuf);
}
readbuf[0] = NULLCHAR;
get_s390x_panicmsg(readbuf);
if (strlen(readbuf)) {
strcat(sendbuf, "panicmsg: ");
strcat(sendbuf, readbuf);
}
console("[%s]\n", sendbuf);
daemon_send(sendbuf, strlen(sendbuf));
continue;
} else if (STRNEQ(recvbuf, "READ_S390D ")) {
strcpy(savebuf, recvbuf);
p1 = strtok(recvbuf, " "); /* READ_S390D */
p1 = strtok(NULL, " "); /* filename id */
p2 = strtok(NULL, " "); /* address */
p3 = strtok(NULL, " "); /* length */
mfd = atoi(p1);
addr = daemon_htol(p2);
len = atoi(p3);
BZERO(readbuf, READBUFSIZE);
errno = 0;
if ((len = read_s390_dumpfile(UNUSED,
&readbuf[DATA_HDRSIZE], len, UNUSED, addr)) < 0)
len = 0;
if (len) {
sprintf(readbuf, "%s%07ld", DONEMSG,(ulong)len);
console("(%ld)\n", (ulong)len);
} else {
sprintf(readbuf, "%s%07ld", FAILMSG,
(ulong)errno);
console("[%s]\n", readbuf);
}
daemon_send(readbuf, len+DATA_HDRSIZE);
continue;
} else if (STRNEQ(recvbuf, "EXECUTE ")) {
strcpy(savebuf, recvbuf);
p1 = strtok(recvbuf, " "); /* EXECUTE */
p1 = strtok(NULL, " "); /* bufsize */
p2 = strtok(NULL, " "); /* MCLXCD or LKCD */
p3 = strstr(savebuf, p2);
bufsize = atol(p1);
reqsize = bufsize - DATA_HDRSIZE;
sprintf(readbuf, "echo | %s", p3);
if ((pipe = popen(readbuf, "r")) == NULL) {
BZERO(readbuf, READBUFSIZE);
sprintf(readbuf, "%s%07ld", FAILMSG,
(ulong)errno);
console("[%s]\n", readbuf);
daemon_send(readbuf, bufsize);
continue;
}
errno = cnt = done = total = first = 0;
while (!done) {
BZERO(readbuf, READBUFSIZE);
cnt = fread(&readbuf[DATA_HDRSIZE],
sizeof(char), reqsize, pipe);
total += cnt;
if (feof(pipe)) {
sprintf(readbuf, "%s%07ld",
DONEMSG, (ulong)cnt);
done = TRUE;
} else if (ferror(pipe)) {
sprintf(readbuf, "%s%07ld", FAILMSG,
(ulong)errno);
done = TRUE;
} else
sprintf(readbuf, "%s%07ld",
DATAMSG, (ulong)cnt);
console("%s[%s]\n", !first++ ? "\n" : "",
readbuf);
daemon_send(readbuf, bufsize);
}
console("EXECUTE total: %ld\n", total);
pclose(pipe);
continue;
} else if (STRNEQ(recvbuf, "EXIT")) {
sprintf(sendbuf, "%s OK", recvbuf);
console("[%s]\n", sendbuf);
daemon_send(sendbuf, strlen(sendbuf));
return;
} else {
sprintf(sendbuf, "%s <FAIL>", recvbuf);
console("[%s]\n", sendbuf);
daemon_send(sendbuf, strlen(sendbuf));
}
}
}
/*
* Common error-checking send routine.
*/
#define MINSENDSIZE (1448)
static void