4 Copyright (c) 2000 The Regents of the University of Michigan.
7 Copyright (c) 2000 Dug Song <dugsong@UMICH.EDU>.
8 Copyright (c) 2002 Andy Adamson <andros@UMICH.EDU>.
9 Copyright (c) 2002 Marius Aamodt Eriksen <marius@UMICH.EDU>.
10 Copyright (c) 2002 J. Bruce Fields <bfields@UMICH.EDU>.
11 All rights reserved, all wrongs reversed.
13 Redistribution and use in source and binary forms, with or without
14 modification, are permitted provided that the following conditions
17 1. Redistributions of source code must retain the above copyright
18 notice, this list of conditions and the following disclaimer.
19 2. Redistributions in binary form must reproduce the above copyright
20 notice, this list of conditions and the following disclaimer in the
21 documentation and/or other materials provided with the distribution.
22 3. Neither the name of the University nor the names of its
23 contributors may be used to endorse or promote products derived
24 from this software without specific prior written permission.
26 THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
27 WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
28 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
29 DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
33 BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
34 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
35 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
36 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
42 #include <sys/param.h>
43 #include <sys/types.h>
45 #include <sys/socket.h>
61 #include "lustre_ver.h"
70 DIR *dir = opendir("/proc/self/fd");
75 while ((d = readdir(dir)) != NULL) {
77 long n = strtol(d->d_name, &endp, 10);
78 if (*endp != '\0' && n >= min && n != dfd)
83 int fd = sysconf(_SC_OPEN_MAX);
90 * mydaemon creates a pipe between the partent and child
91 * process. The parent process will wait until the
92 * child dies or writes a '1' on the pipe signaling
93 * that it started successfully.
95 int pipefds[2] = { -1, -1};
98 mydaemon(int nochdir, int noclose)
100 int pid, status, tempfd;
102 if (pipe(pipefds) < 0) {
103 printerr(1, "mydaemon: pipe() failed: errno %d (%s)\n",
104 errno, strerror(errno));
107 if ((pid = fork ()) < 0) {
108 printerr(1, "mydaemon: fork() failed: errno %d (%s)\n",
109 errno, strerror(errno));
115 * Parent. Wait for status from child.
118 if (read(pipefds[0], &status, 1) != 1)
126 if (chdir ("/") == -1) {
127 printerr(1, "mydaemon: chdir() failed: errno %d (%s)\n",
128 errno, strerror(errno));
133 while (pipefds[1] <= 2) {
134 pipefds[1] = dup(pipefds[1]);
135 if (pipefds[1] < 0) {
136 printerr(1, "mydaemon: dup() failed: errno %d (%s)\n",
137 errno, strerror(errno));
143 tempfd = open("/dev/null", O_RDWR);
157 ssize_t sret __attribute__ ((unused));
159 if (pipefds[1] > 0) {
160 sret = write(pipefds[1], &status, 1);
169 /* destroy krb5 machine creds */
171 printerr(1, "exiting on signal %d\n", signal);
178 /* don't exit on SIGHUP */
179 printerr(1, "Received SIGHUP... Ignoring.\n");
184 usage(FILE *fp, char *progname)
186 fprintf(fp, "usage: %s [ -fnvmogk ]\n",
188 fprintf(stderr, "-f - Run in foreground\n");
189 fprintf(stderr, "-n - Don't establish kerberos credentials\n");
190 fprintf(stderr, "-v - Verbosity\n");
191 fprintf(stderr, "-m - Service MDS\n");
192 fprintf(stderr, "-o - Service OSS\n");
193 fprintf(stderr, "-g - Service MGS\n");
194 fprintf(stderr, "-k - Enable kerberos support\n");
195 #ifdef HAVE_OPENSSL_SSK
196 fprintf(stderr, "-s - Enable shared secret key support\n");
198 fprintf(stderr, "-z - Enable gssnull support\n");
204 main(int argc, char *argv[])
210 int must_srv_mds = 0, must_srv_oss = 0, must_srv_mgs = 0;
213 while ((opt = getopt(argc, argv, "fnvmogksz")) != -1) {
240 usage(stdout, argv[0]);
243 #ifdef HAVE_OPENSSL_SSK
246 fprintf(stderr, "error: request for SSK but service "
247 "support not enabled\n");
248 usage(stderr, argv[0]);
255 usage(stderr, argv[0]);
260 if ((progname = strrchr(argv[0], '/')))
265 if (!sk_enabled && !krb_enabled && !null_enabled) {
266 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
267 fprintf(stderr, "warning: no -k, -s, or -z option given, "
268 "assume -k for backward compatibility\n");
271 fprintf(stderr, "error: need one of -k, -s, or -z options\n");
272 usage(stderr, argv[0]);
276 initerr(progname, verbosity, fg);
278 /* For kerberos use gss mechanisms but ignore for sk and null */
280 if (gssd_check_mechs()) {
281 printerr(0, "ERROR: problem with gssapi library\n");
284 if (gssd_get_local_realm()) {
285 printerr(0, "ERROR: Can't get Local Kerberos realm\n");
290 gssd_prepare_creds(must_srv_mgs, must_srv_mds,
292 printerr(0, "unable to obtain root (machine) "
294 printerr(0, "do you have a keytab entry for "
295 "<lustre_xxs>/<your.host>@<YOUR.REALM> in "
296 "/etc/krb5.keytab?\n");
305 * XXX: There is risk of memory leak for missing call
306 * cleanup_mapping() for SIGKILL and SIGSTOP.
308 signal(SIGINT, sig_die);
309 signal(SIGTERM, sig_die);
310 signal(SIGHUP, sig_hup);
315 gssd_init_unique(GSSD_SVC);
319 printerr(0, "gssd_run returned!\n");