2 * collectd - src/virt.c
3 * Copyright (C) 2006-2008 Red Hat Inc.
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; only version 2 of the license is applicable.
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 * Richard W.M. Jones <rjones@redhat.com>
26 #include "utils_ignorelist.h"
27 #include "utils_complain.h"
29 #include <libvirt/libvirt.h>
30 #include <libvirt/virterror.h>
31 #include <libxml/parser.h>
32 #include <libxml/tree.h>
33 #include <libxml/xpath.h>
37 #define PLUGIN_NAME "virt"
39 static const char *config_keys[] = {
47 "BlockDeviceFormatBasename",
54 "PluginInstanceFormat",
58 #define NR_CONFIG_KEYS ((sizeof config_keys / sizeof config_keys[0]) - 1)
61 static virConnectPtr conn = 0;
62 static char *conn_string = NULL;
63 static c_complain_t conn_complain = C_COMPLAIN_INIT_STATIC;
65 /* Seconds between list refreshes, 0 disables completely. */
66 static int interval = 60;
68 /* List of domains, if specified. */
69 static ignorelist_t *il_domains = NULL;
70 /* List of block devices, if specified. */
71 static ignorelist_t *il_block_devices = NULL;
72 /* List of network interface devices, if specified. */
73 static ignorelist_t *il_interface_devices = NULL;
75 static int ignore_device_match (ignorelist_t *,
76 const char *domname, const char *devpath);
78 /* Actual list of domains found on last refresh. */
79 static virDomainPtr *domains = NULL;
80 static int nr_domains = 0;
82 static void free_domains (void);
83 static int add_domain (virDomainPtr dom);
85 /* Actual list of block devices found on last refresh. */
87 virDomainPtr dom; /* domain */
88 char *path; /* name of block device */
91 static struct block_device *block_devices = NULL;
92 static int nr_block_devices = 0;
94 static void free_block_devices (void);
95 static int add_block_device (virDomainPtr dom, const char *path);
97 /* Actual list of network interfaces found on last refresh. */
98 struct interface_device {
99 virDomainPtr dom; /* domain */
100 char *path; /* name of interface device */
101 char *address; /* mac address of interface device */
102 char *number; /* interface device number */
105 static struct interface_device *interface_devices = NULL;
106 static int nr_interface_devices = 0;
108 static void free_interface_devices (void);
109 static int add_interface_device (virDomainPtr dom, const char *path, const char *address, unsigned int number);
111 /* HostnameFormat. */
112 #define HF_MAX_FIELDS 3
121 static enum hf_field hostname_format[HF_MAX_FIELDS] =
124 /* PluginInstanceFormat */
125 #define PLGINST_MAX_FIELDS 2
133 static enum plginst_field plugin_instance_format[PLGINST_MAX_FIELDS] =
136 /* BlockDeviceFormat */
142 /* InterfaceFormat. */
149 /* BlockDeviceFormatBasename */
150 _Bool blockdevice_format_basename = 0;
151 static enum bd_field blockdevice_format = target;
152 static enum if_field interface_format = if_name;
154 /* Time that we last refreshed. */
155 static time_t last_refresh = (time_t) 0;
157 static int refresh_lists (void);
159 /* ERROR(...) macro for virterrors. */
160 #define VIRT_ERROR(conn,s) do { \
162 err = (conn) ? virConnGetLastError ((conn)) : virGetLastError (); \
163 if (err) ERROR ("%s: %s", (s), err->message); \
167 init_value_list (value_list_t *vl, virDomainPtr dom)
171 char uuid[VIR_UUID_STRING_BUFLEN];
173 sstrncpy (vl->plugin, PLUGIN_NAME, sizeof (vl->plugin));
177 /* Construct the hostname field according to HostnameFormat. */
178 for (int i = 0; i < HF_MAX_FIELDS; ++i) {
179 if (hostname_format[i] == hf_none)
182 n = DATA_MAX_NAME_LEN - strlen (vl->host) - 2;
184 if (i > 0 && n >= 1) {
185 strncat (vl->host, ":", 1);
189 switch (hostname_format[i]) {
192 strncat (vl->host, hostname_g, n);
195 name = virDomainGetName (dom);
197 strncat (vl->host, name, n);
200 if (virDomainGetUUIDString (dom, uuid) == 0)
201 strncat (vl->host, uuid, n);
206 vl->host[sizeof (vl->host) - 1] = '\0';
208 /* Construct the plugin instance field according to PluginInstanceFormat. */
209 for (int i = 0; i < PLGINST_MAX_FIELDS; ++i) {
210 if (plugin_instance_format[i] == plginst_none)
213 n = sizeof(vl->plugin_instance) - strlen (vl->plugin_instance) - 2;
215 if (i > 0 && n >= 1) {
216 strncat (vl->plugin_instance, ":", 1);
220 switch (plugin_instance_format[i]) {
221 case plginst_none: break;
223 name = virDomainGetName (dom);
225 strncat (vl->plugin_instance, name, n);
228 if (virDomainGetUUIDString (dom, uuid) == 0)
229 strncat (vl->plugin_instance, uuid, n);
234 vl->plugin_instance[sizeof (vl->plugin_instance) - 1] = '\0';
236 } /* void init_value_list */
238 static void submit (virDomainPtr dom,
239 char const *type, char const *type_instance,
240 value_t *values, size_t values_len)
242 value_list_t vl = VALUE_LIST_INIT;
243 init_value_list (&vl, dom);
246 vl.values_len = values_len;
248 sstrncpy (vl.type, type, sizeof (vl.type));
249 if (type_instance != NULL)
250 sstrncpy (vl.type_instance, type_instance, sizeof (vl.type_instance));
252 plugin_dispatch_values (&vl);
256 memory_submit (gauge_t value, virDomainPtr dom)
258 submit (dom, "memory", "total", &(value_t) { .gauge = value }, 1);
262 memory_stats_submit (gauge_t value, virDomainPtr dom, int tag_index)
264 static const char *tags[] = { "swap_in", "swap_out", "major_fault", "minor_fault",
265 "unused", "available", "actual_balloon", "rss"};
267 if ((tag_index < 0) || (tag_index >= STATIC_ARRAY_SIZE (tags))) {
268 ERROR ("virt plugin: Array index out of bounds: tag_index = %d", tag_index);
272 submit (dom, "memory", tags[tag_index], &(value_t) { .gauge = value }, 1);
276 cpu_submit (unsigned long long value,
277 virDomainPtr dom, const char *type)
279 submit (dom, type, NULL, &(value_t) { .derive = (derive_t) value }, 1);
283 vcpu_submit (derive_t value,
284 virDomainPtr dom, int vcpu_nr, const char *type)
286 char type_instance[DATA_MAX_NAME_LEN];
288 ssnprintf (type_instance, sizeof (type_instance), "%d", vcpu_nr);
290 submit (dom, type, type_instance, &(value_t) { .derive = value }, 1);
294 submit_derive2 (const char *type, derive_t v0, derive_t v1,
295 virDomainPtr dom, const char *devname)
302 submit (dom, type, devname, values, STATIC_ARRAY_SIZE (values));
303 } /* void submit_derive2 */
308 if (virInitialize () != 0)
315 lv_config (const char *key, const char *value)
317 if (virInitialize () != 0)
320 if (il_domains == NULL)
321 il_domains = ignorelist_create (1);
322 if (il_block_devices == NULL)
323 il_block_devices = ignorelist_create (1);
324 if (il_interface_devices == NULL)
325 il_interface_devices = ignorelist_create (1);
327 if (strcasecmp (key, "Connection") == 0) {
328 char *tmp = strdup (value);
330 ERROR (PLUGIN_NAME " plugin: Connection strdup failed.");
338 if (strcasecmp (key, "RefreshInterval") == 0) {
340 interval = strtol (value, &eptr, 10);
341 if (eptr == NULL || *eptr != '\0') return 1;
345 if (strcasecmp (key, "Domain") == 0) {
346 if (ignorelist_add (il_domains, value)) return 1;
349 if (strcasecmp (key, "BlockDevice") == 0) {
350 if (ignorelist_add (il_block_devices, value)) return 1;
354 if (strcasecmp (key, "BlockDeviceFormat") == 0) {
355 if (strcasecmp (value, "target") == 0)
356 blockdevice_format = target;
357 else if (strcasecmp (value, "source") == 0)
358 blockdevice_format = source;
360 ERROR (PLUGIN_NAME " plugin: unknown BlockDeviceFormat: %s", value);
365 if (strcasecmp (key, "BlockDeviceFormatBasename") == 0) {
366 if (strcasecmp (value, "true") == 0)
367 blockdevice_format_basename = 1;
368 else if (strcasecmp (value, "false") == 0)
369 blockdevice_format_basename = 0;
371 ERROR (PLUGIN_NAME " plugin: unknown BlockDeviceFormatBasename: %s", value);
376 if (strcasecmp (key, "InterfaceDevice") == 0) {
377 if (ignorelist_add (il_interface_devices, value)) return 1;
381 if (strcasecmp (key, "IgnoreSelected") == 0) {
384 ignorelist_set_invert (il_domains, 0);
385 ignorelist_set_invert (il_block_devices, 0);
386 ignorelist_set_invert (il_interface_devices, 0);
390 ignorelist_set_invert (il_domains, 1);
391 ignorelist_set_invert (il_block_devices, 1);
392 ignorelist_set_invert (il_interface_devices, 1);
397 if (strcasecmp (key, "HostnameFormat") == 0) {
399 char *fields[HF_MAX_FIELDS];
402 value_copy = strdup (value);
403 if (value_copy == NULL) {
404 ERROR (PLUGIN_NAME " plugin: strdup failed.");
408 n = strsplit (value_copy, fields, HF_MAX_FIELDS);
411 ERROR (PLUGIN_NAME " plugin: HostnameFormat: no fields");
415 for (int i = 0; i < n; ++i) {
416 if (strcasecmp (fields[i], "hostname") == 0)
417 hostname_format[i] = hf_hostname;
418 else if (strcasecmp (fields[i], "name") == 0)
419 hostname_format[i] = hf_name;
420 else if (strcasecmp (fields[i], "uuid") == 0)
421 hostname_format[i] = hf_uuid;
423 ERROR (PLUGIN_NAME " plugin: unknown HostnameFormat field: %s", fields[i]);
430 for (int i = n; i < HF_MAX_FIELDS; ++i)
431 hostname_format[i] = hf_none;
436 if (strcasecmp (key, "PluginInstanceFormat") == 0) {
438 char *fields[PLGINST_MAX_FIELDS];
441 value_copy = strdup (value);
442 if (value_copy == NULL) {
443 ERROR (PLUGIN_NAME " plugin: strdup failed.");
447 n = strsplit (value_copy, fields, PLGINST_MAX_FIELDS);
450 ERROR (PLUGIN_NAME " plugin: PluginInstanceFormat: no fields");
454 for (int i = 0; i < n; ++i) {
455 if (strcasecmp (fields[i], "none") == 0) {
456 plugin_instance_format[i] = plginst_none;
458 } else if (strcasecmp (fields[i], "name") == 0)
459 plugin_instance_format[i] = plginst_name;
460 else if (strcasecmp (fields[i], "uuid") == 0)
461 plugin_instance_format[i] = plginst_uuid;
463 ERROR (PLUGIN_NAME " plugin: unknown PluginInstanceFormat field: %s", fields[i]);
470 for (int i = n; i < PLGINST_MAX_FIELDS; ++i)
471 plugin_instance_format[i] = plginst_none;
476 if (strcasecmp (key, "InterfaceFormat") == 0) {
477 if (strcasecmp (value, "name") == 0)
478 interface_format = if_name;
479 else if (strcasecmp (value, "address") == 0)
480 interface_format = if_address;
481 else if (strcasecmp (value, "number") == 0)
482 interface_format = if_number;
484 ERROR (PLUGIN_NAME " plugin: unknown InterfaceFormat: %s", value);
490 /* Unrecognised option. */
500 /* `conn_string == NULL' is acceptable. */
501 conn = virConnectOpenReadOnly (conn_string);
503 c_complain (LOG_ERR, &conn_complain,
504 PLUGIN_NAME " plugin: Unable to connect: "
505 "virConnectOpenReadOnly failed.");
509 c_release (LOG_NOTICE, &conn_complain,
510 PLUGIN_NAME " plugin: Connection established.");
514 /* Need to refresh domain or device lists? */
515 if ((last_refresh == (time_t) 0) ||
516 ((interval > 0) && ((last_refresh + interval) <= t))) {
517 if (refresh_lists () != 0) {
519 virConnectClose (conn);
527 for (int i = 0; i < nr_domains; ++i)
528 fprintf (stderr, "domain %s\n", virDomainGetName (domains[i]));
529 for (int i = 0; i < nr_block_devices; ++i)
530 fprintf (stderr, "block device %d %s:%s\n",
531 i, virDomainGetName (block_devices[i].dom),
532 block_devices[i].path);
533 for (int i = 0; i < nr_interface_devices; ++i)
534 fprintf (stderr, "interface device %d %s:%s\n",
535 i, virDomainGetName (interface_devices[i].dom),
536 interface_devices[i].path);
539 /* Get CPU usage, memory, VCPU usage for each domain. */
540 for (int i = 0; i < nr_domains; ++i) {
542 virVcpuInfoPtr vinfo = NULL;
543 virDomainMemoryStatPtr minfo = NULL;
546 status = virDomainGetInfo (domains[i], &info);
549 ERROR (PLUGIN_NAME " plugin: virDomainGetInfo failed with status %i.",
554 if (info.state != VIR_DOMAIN_RUNNING)
556 /* only gather stats for running domains */
560 cpu_submit (info.cpuTime, domains[i], "virt_cpu_total");
561 memory_submit ((gauge_t) info.memory * 1024, domains[i]);
563 vinfo = malloc (info.nrVirtCpu * sizeof (vinfo[0]));
565 ERROR (PLUGIN_NAME " plugin: malloc failed.");
569 status = virDomainGetVcpus (domains[i], vinfo, info.nrVirtCpu,
570 /* cpu map = */ NULL, /* cpu map length = */ 0);
573 ERROR (PLUGIN_NAME " plugin: virDomainGetVcpus failed with status %i.",
579 for (int j = 0; j < info.nrVirtCpu; ++j)
580 vcpu_submit (vinfo[j].cpuTime,
581 domains[i], vinfo[j].number, "virt_vcpu");
585 minfo = malloc (VIR_DOMAIN_MEMORY_STAT_NR * sizeof (virDomainMemoryStatStruct));
587 ERROR ("virt plugin: malloc failed.");
591 status = virDomainMemoryStats (domains[i], minfo, VIR_DOMAIN_MEMORY_STAT_NR, 0);
594 ERROR ("virt plugin: virDomainMemoryStats failed with status %i.",
600 for (int j = 0; j < status; j++) {
601 memory_stats_submit ((gauge_t) minfo[j].val * 1024, domains[i], minfo[j].tag);
608 /* Get block device stats for each domain. */
609 for (int i = 0; i < nr_block_devices; ++i) {
610 struct _virDomainBlockStats stats;
612 if (virDomainBlockStats (block_devices[i].dom, block_devices[i].path,
613 &stats, sizeof stats) != 0)
616 char *type_instance = NULL;
617 if (blockdevice_format_basename && blockdevice_format == source)
618 type_instance = strdup(basename(block_devices[i].path));
620 type_instance = strdup(block_devices[i].path);
621 if ((stats.rd_req != -1) && (stats.wr_req != -1))
622 submit_derive2 ("disk_ops",
623 (derive_t) stats.rd_req, (derive_t) stats.wr_req,
624 block_devices[i].dom, type_instance);
626 if ((stats.rd_bytes != -1) && (stats.wr_bytes != -1))
627 submit_derive2 ("disk_octets",
628 (derive_t) stats.rd_bytes, (derive_t) stats.wr_bytes,
629 block_devices[i].dom, type_instance);
631 sfree(type_instance);
632 } /* for (nr_block_devices) */
634 /* Get interface stats for each domain. */
635 for (int i = 0; i < nr_interface_devices; ++i) {
636 struct _virDomainInterfaceStats stats;
637 char *display_name = NULL;
640 switch (interface_format) {
642 display_name = interface_devices[i].address;
645 display_name = interface_devices[i].number;
649 display_name = interface_devices[i].path;
652 if (virDomainInterfaceStats (interface_devices[i].dom,
653 interface_devices[i].path,
654 &stats, sizeof stats) != 0)
657 if ((stats.rx_bytes != -1) && (stats.tx_bytes != -1))
658 submit_derive2 ("if_octets",
659 (derive_t) stats.rx_bytes, (derive_t) stats.tx_bytes,
660 interface_devices[i].dom, display_name);
662 if ((stats.rx_packets != -1) && (stats.tx_packets != -1))
663 submit_derive2 ("if_packets",
664 (derive_t) stats.rx_packets, (derive_t) stats.tx_packets,
665 interface_devices[i].dom, display_name);
667 if ((stats.rx_errs != -1) && (stats.tx_errs != -1))
668 submit_derive2 ("if_errors",
669 (derive_t) stats.rx_errs, (derive_t) stats.tx_errs,
670 interface_devices[i].dom, display_name);
672 if ((stats.rx_drop != -1) && (stats.tx_drop != -1))
673 submit_derive2 ("if_dropped",
674 (derive_t) stats.rx_drop, (derive_t) stats.tx_drop,
675 interface_devices[i].dom, display_name);
676 } /* for (nr_interface_devices) */
686 n = virConnectNumOfDomains (conn);
688 VIRT_ERROR (conn, "reading number of domains");
695 /* Get list of domains. */
696 domids = malloc (sizeof (*domids) * n);
697 if (domids == NULL) {
698 ERROR (PLUGIN_NAME " plugin: malloc failed.");
702 n = virConnectListDomains (conn, domids, n);
704 VIRT_ERROR (conn, "reading list of domains");
709 free_block_devices ();
710 free_interface_devices ();
713 /* Fetch each domain and add it to the list, unless ignore. */
714 for (int i = 0; i < n; ++i) {
715 virDomainPtr dom = NULL;
718 xmlDocPtr xml_doc = NULL;
719 xmlXPathContextPtr xpath_ctx = NULL;
720 xmlXPathObjectPtr xpath_obj = NULL;
722 dom = virDomainLookupByID (conn, domids[i]);
724 VIRT_ERROR (conn, "virDomainLookupByID");
725 /* Could be that the domain went away -- ignore it anyway. */
729 name = virDomainGetName (dom);
731 VIRT_ERROR (conn, "virDomainGetName");
735 if (il_domains && ignorelist_match (il_domains, name) != 0)
738 if (add_domain (dom) < 0) {
739 ERROR (PLUGIN_NAME " plugin: malloc failed.");
743 /* Get a list of devices for this domain. */
744 xml = virDomainGetXMLDesc (dom, 0);
746 VIRT_ERROR (conn, "virDomainGetXMLDesc");
750 /* Yuck, XML. Parse out the devices. */
751 xml_doc = xmlReadDoc ((xmlChar *) xml, NULL, NULL, XML_PARSE_NONET);
752 if (xml_doc == NULL) {
753 VIRT_ERROR (conn, "xmlReadDoc");
757 xpath_ctx = xmlXPathNewContext (xml_doc);
760 char *bd_xmlpath = "/domain/devices/disk/target[@dev]";
761 if (blockdevice_format == source)
762 bd_xmlpath = "/domain/devices/disk/source[@dev]";
763 xpath_obj = xmlXPathEval ((xmlChar *) bd_xmlpath, xpath_ctx);
765 if (xpath_obj == NULL || xpath_obj->type != XPATH_NODESET ||
766 xpath_obj->nodesetval == NULL)
769 for (int j = 0; j < xpath_obj->nodesetval->nodeNr; ++j) {
773 node = xpath_obj->nodesetval->nodeTab[j];
775 path = (char *) xmlGetProp (node, (xmlChar *) "dev");
778 if (il_block_devices &&
779 ignore_device_match (il_block_devices, name, path) != 0)
782 add_block_device (dom, path);
784 if (path) xmlFree (path);
786 xmlXPathFreeObject (xpath_obj);
788 /* Network interfaces. */
789 xpath_obj = xmlXPathEval
790 ((xmlChar *) "/domain/devices/interface[target[@dev]]",
792 if (xpath_obj == NULL || xpath_obj->type != XPATH_NODESET ||
793 xpath_obj->nodesetval == NULL)
796 xmlNodeSetPtr xml_interfaces = xpath_obj->nodesetval;
798 for (int j = 0; j < xml_interfaces->nodeNr; ++j) {
800 char *address = NULL;
801 xmlNodePtr xml_interface;
803 xml_interface = xml_interfaces->nodeTab[j];
804 if (!xml_interface) continue;
806 for (xmlNodePtr child = xml_interface->children; child; child = child->next) {
807 if (child->type != XML_ELEMENT_NODE) continue;
809 if (xmlStrEqual(child->name, (const xmlChar *) "target")) {
810 path = (char *) xmlGetProp (child, (const xmlChar *) "dev");
812 } else if (xmlStrEqual(child->name, (const xmlChar *) "mac")) {
813 address = (char *) xmlGetProp (child, (const xmlChar *) "address");
814 if (!address) continue;
818 if (il_interface_devices &&
819 (ignore_device_match (il_interface_devices, name, path) != 0 ||
820 ignore_device_match (il_interface_devices, name, address) != 0))
823 add_interface_device (dom, path, address, j+1);
825 if (path) xmlFree (path);
826 if (address) xmlFree (address);
830 if (xpath_obj) xmlXPathFreeObject (xpath_obj);
831 if (xpath_ctx) xmlXPathFreeContext (xpath_ctx);
832 if (xml_doc) xmlFreeDoc (xml_doc);
846 for (int i = 0; i < nr_domains; ++i)
847 virDomainFree (domains[i]);
855 add_domain (virDomainPtr dom)
857 virDomainPtr *new_ptr;
858 int new_size = sizeof (domains[0]) * (nr_domains+1);
861 new_ptr = realloc (domains, new_size);
863 new_ptr = malloc (new_size);
869 domains[nr_domains] = dom;
874 free_block_devices (void)
877 for (int i = 0; i < nr_block_devices; ++i)
878 sfree (block_devices[i].path);
879 sfree (block_devices);
881 block_devices = NULL;
882 nr_block_devices = 0;
886 add_block_device (virDomainPtr dom, const char *path)
888 struct block_device *new_ptr;
889 int new_size = sizeof (block_devices[0]) * (nr_block_devices+1);
892 path_copy = strdup (path);
897 new_ptr = realloc (block_devices, new_size);
899 new_ptr = malloc (new_size);
901 if (new_ptr == NULL) {
905 block_devices = new_ptr;
906 block_devices[nr_block_devices].dom = dom;
907 block_devices[nr_block_devices].path = path_copy;
908 return nr_block_devices++;
912 free_interface_devices (void)
914 if (interface_devices) {
915 for (int i = 0; i < nr_interface_devices; ++i) {
916 sfree (interface_devices[i].path);
917 sfree (interface_devices[i].address);
918 sfree (interface_devices[i].number);
920 sfree (interface_devices);
922 interface_devices = NULL;
923 nr_interface_devices = 0;
927 add_interface_device (virDomainPtr dom, const char *path, const char *address, unsigned int number)
929 struct interface_device *new_ptr;
930 int new_size = sizeof (interface_devices[0]) * (nr_interface_devices+1);
931 char *path_copy, *address_copy, number_string[15];
933 if ((path == NULL) || (address == NULL))
936 path_copy = strdup (path);
937 if (!path_copy) return -1;
939 address_copy = strdup (address);
945 snprintf(number_string, sizeof (number_string), "interface-%u", number);
947 if (interface_devices)
948 new_ptr = realloc (interface_devices, new_size);
950 new_ptr = malloc (new_size);
952 if (new_ptr == NULL) {
954 sfree (address_copy);
957 interface_devices = new_ptr;
958 interface_devices[nr_interface_devices].dom = dom;
959 interface_devices[nr_interface_devices].path = path_copy;
960 interface_devices[nr_interface_devices].address = address_copy;
961 interface_devices[nr_interface_devices].number = strdup(number_string);
962 return nr_interface_devices++;
966 ignore_device_match (ignorelist_t *il, const char *domname, const char *devpath)
971 if ((domname == NULL) || (devpath == NULL))
974 n = sizeof (char) * (strlen (domname) + strlen (devpath) + 2);
977 ERROR (PLUGIN_NAME " plugin: malloc failed.");
980 ssnprintf (name, n, "%s:%s", domname, devpath);
981 r = ignorelist_match (il, name);
989 free_block_devices ();
990 free_interface_devices ();
994 virConnectClose (conn);
997 ignorelist_free (il_domains);
999 ignorelist_free (il_block_devices);
1000 il_block_devices = NULL;
1001 ignorelist_free (il_interface_devices);
1002 il_interface_devices = NULL;
1008 module_register (void)
1010 plugin_register_config (PLUGIN_NAME,
1012 config_keys, NR_CONFIG_KEYS);
1013 plugin_register_init (PLUGIN_NAME, lv_init);
1014 plugin_register_read (PLUGIN_NAME, lv_read);
1015 plugin_register_shutdown (PLUGIN_NAME, lv_shutdown);
1019 * vim: shiftwidth=4 tabstop=8 softtabstop=4 expandtab fdm=marker