1 /* Copyright (c) 2009 Nicira Networks
3 * This program is free software: you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License as published by
5 * the Free Software Foundation, either version 3 of the License, or
6 * (at your option) any later version.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this program. If not, see <http://www.gnu.org/licenses/>.
16 * In addition, as a special exception, Nicira Networks gives permission
17 * to link the code of its release of vswitchd with the OpenSSL project's
18 * "OpenSSL" library (or with modified versions of it that use the same
19 * license as the "OpenSSL" library), and distribute the linked
20 * executables. You must obey the GNU General Public License in all
21 * respects for all of the code used other than "OpenSSL". If you modify
22 * this file, you may extend this exception to your version of the file,
23 * but you are not obligated to do so. If you do not wish to do so,
24 * delete this exception statement from your version.
28 #include "xenserver.h"
34 #include "dynamic-string.h"
38 #define THIS_MODULE VLM_xenserver
43 static const char filename[] = "/etc/xensource-inventory";
47 file = fopen(filename, "r");
49 if (errno == ENOENT) {
50 VLOG_INFO("not running on a XenServer");
52 VLOG_INFO("%s: open: %s", filename, strerror(errno));
57 while (fgets(line, sizeof line, file)) {
58 static const char leader[] = "INSTALLATION_UUID='";
59 const int leader_len = strlen(leader);
60 const int uuid_len = 36;
61 static const char trailer[] = "'\n";
62 const int trailer_len = strlen(trailer);
64 if (strlen(line) == leader_len + uuid_len + trailer_len
65 && !memcmp(line, leader, leader_len)
66 && !memcmp(line + leader_len + uuid_len, trailer, trailer_len)) {
67 char *host_uuid = xmemdup0(line + leader_len, uuid_len);
68 VLOG_INFO("running on XenServer, host-uuid %s", host_uuid);
74 VLOG_ERR("%s: INSTALLATION_UUID not found", filename);
79 xenserver_get_host_uuid(void)
81 static char *host_uuid;
85 host_uuid = read_host_uuid();