*
* Authors:
* Richard W.M. Jones <rjones@redhat.com>
+ * Przemyslaw Szczerbik <przemyslawx.szczerbik@intel.com>
**/
#include "collectd.h"
#include <libxml/parser.h>
#include <libxml/tree.h>
#include <libxml/xpath.h>
+#include <libxml/xpathInternals.h>
+#include <stdbool.h>
/* Plugin name */
#define PLUGIN_NAME "virt"
+/* Secure strcat macro assuring null termination. Parameter (n) is the size of
+ buffer (d), allowing this macro to be safe for static and dynamic buffers */
+#define SSTRNCAT(d, s, n) \
+ do { \
+ size_t _l = strlen(d); \
+ sstrncpy((d) + _l, (s), (n)-_l); \
+ } while (0)
+
+#ifdef LIBVIR_CHECK_VERSION
+
+#if LIBVIR_CHECK_VERSION(0, 9, 2)
+#define HAVE_DOM_REASON 1
+#endif
+
+#if LIBVIR_CHECK_VERSION(0, 9, 5)
+#define HAVE_BLOCK_STATS_FLAGS 1
+#define HAVE_DOM_REASON_PAUSED_SHUTTING_DOWN 1
+#endif
+
+#if LIBVIR_CHECK_VERSION(0, 9, 10)
+#define HAVE_DISK_ERR 1
+#endif
+
+#if LIBVIR_CHECK_VERSION(0, 9, 11)
+#define HAVE_CPU_STATS 1
+#define HAVE_DOM_STATE_PMSUSPENDED 1
+#define HAVE_DOM_REASON_RUNNING_WAKEUP 1
+#endif
+
+/*
+ virConnectListAllDomains() appeared in 0.10.2
+ Note that LIBVIR_CHECK_VERSION appeared a year later, so
+ in some systems which actually have virConnectListAllDomains()
+ we can't detect this.
+ */
+#if LIBVIR_CHECK_VERSION(0, 10, 2)
+#define HAVE_LIST_ALL_DOMAINS 1
+#endif
+
+#if LIBVIR_CHECK_VERSION(1, 0, 1)
+#define HAVE_DOM_REASON_PAUSED_SNAPSHOT 1
+#endif
+
+#if LIBVIR_CHECK_VERSION(1, 1, 1)
+#define HAVE_DOM_REASON_PAUSED_CRASHED 1
+#endif
+
+#if LIBVIR_CHECK_VERSION(1, 2, 9)
+#define HAVE_JOB_STATS 1
+#endif
+
+#if LIBVIR_CHECK_VERSION(1, 2, 10)
+#define HAVE_DOM_REASON_CRASHED 1
+#endif
+
+#if LIBVIR_CHECK_VERSION(1, 2, 11)
+#define HAVE_FS_INFO 1
+#endif
+
+#if LIBVIR_CHECK_VERSION(1, 2, 15)
+#define HAVE_DOM_REASON_PAUSED_STARTING_UP 1
+#endif
+
+#if LIBVIR_CHECK_VERSION(1, 3, 3)
+#define HAVE_PERF_STATS 1
+#define HAVE_DOM_REASON_POSTCOPY 1
+#endif
+
+#endif /* LIBVIR_CHECK_VERSION */
+
+/* structure used for aggregating notification-thread data*/
+typedef struct virt_notif_thread_s {
+ pthread_t event_loop_tid;
+ int domain_event_cb_id;
+ pthread_mutex_t active_mutex; /* protects 'is_active' member access*/
+ bool is_active;
+} virt_notif_thread_t;
+
static const char *config_keys[] = {"Connection",
"RefreshInterval",
"PluginInstanceFormat",
+ "Instances",
+ "ExtraStats",
+ "PersistentNotification",
NULL};
+
+/* PersistentNotification is false by default */
+static bool persistent_notification = false;
+
+/* Thread used for handling libvirt notifications events */
+static virt_notif_thread_t notif_thread;
+
+const char *domain_states[] = {
+ [VIR_DOMAIN_NOSTATE] = "no state",
+ [VIR_DOMAIN_RUNNING] = "the domain is running",
+ [VIR_DOMAIN_BLOCKED] = "the domain is blocked on resource",
+ [VIR_DOMAIN_PAUSED] = "the domain is paused by user",
+ [VIR_DOMAIN_SHUTDOWN] = "the domain is being shut down",
+ [VIR_DOMAIN_SHUTOFF] = "the domain is shut off",
+ [VIR_DOMAIN_CRASHED] = "the domain is crashed",
+#ifdef HAVE_DOM_STATE_PMSUSPENDED
+ [VIR_DOMAIN_PMSUSPENDED] =
+ "the domain is suspended by guest power management",
+#endif
+};
+
+static int map_domain_event_to_state(int event) {
+ int ret;
+ switch (event) {
+ case VIR_DOMAIN_EVENT_STARTED:
+ ret = VIR_DOMAIN_RUNNING;
+ break;
+ case VIR_DOMAIN_EVENT_SUSPENDED:
+ ret = VIR_DOMAIN_PAUSED;
+ break;
+ case VIR_DOMAIN_EVENT_RESUMED:
+ ret = VIR_DOMAIN_RUNNING;
+ break;
+ case VIR_DOMAIN_EVENT_STOPPED:
+ ret = VIR_DOMAIN_SHUTOFF;
+ break;
+ case VIR_DOMAIN_EVENT_SHUTDOWN:
+ ret = VIR_DOMAIN_SHUTDOWN;
+ break;
+#ifdef HAVE_DOM_STATE_PMSUSPENDED
+ case VIR_DOMAIN_EVENT_PMSUSPENDED:
+ ret = VIR_DOMAIN_PMSUSPENDED;
+ break;
+#endif
+#ifdef HAVE_DOM_REASON_CRASHED
+ case VIR_DOMAIN_EVENT_CRASHED:
+ ret = VIR_DOMAIN_CRASHED;
+ break;
+#endif
+ default:
+ ret = VIR_DOMAIN_NOSTATE;
+ }
+ return ret;
+}
+
+#ifdef HAVE_DOM_REASON
+static int map_domain_event_detail_to_reason(int event, int detail) {
+ int ret;
+ switch (event) {
+ case VIR_DOMAIN_EVENT_STARTED:
+ switch (detail) {
+ case VIR_DOMAIN_EVENT_STARTED_BOOTED: /* Normal startup from boot */
+ ret = VIR_DOMAIN_RUNNING_BOOTED;
+ break;
+ case VIR_DOMAIN_EVENT_STARTED_MIGRATED: /* Incoming migration from another
+ host */
+ ret = VIR_DOMAIN_RUNNING_MIGRATED;
+ break;
+ case VIR_DOMAIN_EVENT_STARTED_RESTORED: /* Restored from a state file */
+ ret = VIR_DOMAIN_RUNNING_RESTORED;
+ break;
+ case VIR_DOMAIN_EVENT_STARTED_FROM_SNAPSHOT: /* Restored from snapshot */
+ ret = VIR_DOMAIN_RUNNING_FROM_SNAPSHOT;
+ break;
+#ifdef HAVE_DOM_REASON_RUNNING_WAKEUP
+ case VIR_DOMAIN_EVENT_STARTED_WAKEUP: /* Started due to wakeup event */
+ ret = VIR_DOMAIN_RUNNING_WAKEUP;
+ break;
+#endif
+ default:
+ ret = VIR_DOMAIN_RUNNING_UNKNOWN;
+ }
+ break;
+ case VIR_DOMAIN_EVENT_SUSPENDED:
+ switch (detail) {
+ case VIR_DOMAIN_EVENT_SUSPENDED_PAUSED: /* Normal suspend due to admin
+ pause */
+ ret = VIR_DOMAIN_PAUSED_USER;
+ break;
+ case VIR_DOMAIN_EVENT_SUSPENDED_MIGRATED: /* Suspended for offline
+ migration */
+ ret = VIR_DOMAIN_PAUSED_MIGRATION;
+ break;
+ case VIR_DOMAIN_EVENT_SUSPENDED_IOERROR: /* Suspended due to a disk I/O
+ error */
+ ret = VIR_DOMAIN_PAUSED_IOERROR;
+ break;
+ case VIR_DOMAIN_EVENT_SUSPENDED_WATCHDOG: /* Suspended due to a watchdog
+ firing */
+ ret = VIR_DOMAIN_PAUSED_WATCHDOG;
+ break;
+ case VIR_DOMAIN_EVENT_SUSPENDED_RESTORED: /* Restored from paused state
+ file */
+ ret = VIR_DOMAIN_PAUSED_UNKNOWN;
+ break;
+ case VIR_DOMAIN_EVENT_SUSPENDED_FROM_SNAPSHOT: /* Restored from paused
+ snapshot */
+ ret = VIR_DOMAIN_PAUSED_FROM_SNAPSHOT;
+ break;
+ case VIR_DOMAIN_EVENT_SUSPENDED_API_ERROR: /* Suspended after failure during
+ libvirt API call */
+ ret = VIR_DOMAIN_PAUSED_UNKNOWN;
+ break;
+#ifdef HAVE_DOM_REASON_POSTCOPY
+ case VIR_DOMAIN_EVENT_SUSPENDED_POSTCOPY: /* Suspended for post-copy
+ migration */
+ ret = VIR_DOMAIN_PAUSED_POSTCOPY;
+ break;
+ case VIR_DOMAIN_EVENT_SUSPENDED_POSTCOPY_FAILED: /* Suspended after failed
+ post-copy */
+ ret = VIR_DOMAIN_PAUSED_POSTCOPY_FAILED;
+ break;
+#endif
+ default:
+ ret = VIR_DOMAIN_PAUSED_UNKNOWN;
+ }
+ break;
+ case VIR_DOMAIN_EVENT_RESUMED:
+ switch (detail) {
+ case VIR_DOMAIN_EVENT_RESUMED_UNPAUSED: /* Normal resume due to admin
+ unpause */
+ ret = VIR_DOMAIN_RUNNING_UNPAUSED;
+ break;
+ case VIR_DOMAIN_EVENT_RESUMED_MIGRATED: /* Resumed for completion of
+ migration */
+ ret = VIR_DOMAIN_RUNNING_MIGRATED;
+ break;
+ case VIR_DOMAIN_EVENT_RESUMED_FROM_SNAPSHOT: /* Resumed from snapshot */
+ ret = VIR_DOMAIN_RUNNING_FROM_SNAPSHOT;
+ break;
+#ifdef HAVE_DOM_REASON_POSTCOPY
+ case VIR_DOMAIN_EVENT_RESUMED_POSTCOPY: /* Resumed, but migration is still
+ running in post-copy mode */
+ ret = VIR_DOMAIN_RUNNING_POSTCOPY;
+ break;
+#endif
+ default:
+ ret = VIR_DOMAIN_RUNNING_UNKNOWN;
+ }
+ break;
+ case VIR_DOMAIN_EVENT_STOPPED:
+ switch (detail) {
+ case VIR_DOMAIN_EVENT_STOPPED_SHUTDOWN: /* Normal shutdown */
+ ret = VIR_DOMAIN_SHUTOFF_SHUTDOWN;
+ break;
+ case VIR_DOMAIN_EVENT_STOPPED_DESTROYED: /* Forced poweroff from host */
+ ret = VIR_DOMAIN_SHUTOFF_DESTROYED;
+ break;
+ case VIR_DOMAIN_EVENT_STOPPED_CRASHED: /* Guest crashed */
+ ret = VIR_DOMAIN_SHUTOFF_CRASHED;
+ break;
+ case VIR_DOMAIN_EVENT_STOPPED_MIGRATED: /* Migrated off to another host */
+ ret = VIR_DOMAIN_SHUTOFF_MIGRATED;
+ break;
+ case VIR_DOMAIN_EVENT_STOPPED_SAVED: /* Saved to a state file */
+ ret = VIR_DOMAIN_SHUTOFF_SAVED;
+ break;
+ case VIR_DOMAIN_EVENT_STOPPED_FAILED: /* Host emulator/mgmt failed */
+ ret = VIR_DOMAIN_SHUTOFF_FAILED;
+ break;
+ case VIR_DOMAIN_EVENT_STOPPED_FROM_SNAPSHOT: /* Offline snapshot loaded */
+ ret = VIR_DOMAIN_SHUTOFF_FROM_SNAPSHOT;
+ break;
+ default:
+ ret = VIR_DOMAIN_SHUTOFF_UNKNOWN;
+ }
+ break;
+ case VIR_DOMAIN_EVENT_SHUTDOWN:
+ switch (detail) {
+ case VIR_DOMAIN_EVENT_SHUTDOWN_FINISHED: /* Guest finished shutdown
+ sequence */
+ ret = VIR_DOMAIN_SHUTDOWN_USER;
+ break;
+ default:
+ ret = VIR_DOMAIN_SHUTDOWN_UNKNOWN;
+ }
+ break;
+#ifdef HAVE_DOM_STATE_PMSUSPENDED
+ case VIR_DOMAIN_EVENT_PMSUSPENDED:
+ switch (detail) {
+ case VIR_DOMAIN_EVENT_PMSUSPENDED_MEMORY: /* Guest was PM suspended to
+ memory */
+ ret = VIR_DOMAIN_PMSUSPENDED_UNKNOWN;
+ break;
+ case VIR_DOMAIN_EVENT_PMSUSPENDED_DISK: /* Guest was PM suspended to disk */
+ ret = VIR_DOMAIN_PMSUSPENDED_DISK_UNKNOWN;
+ break;
+ default:
+ ret = VIR_DOMAIN_PMSUSPENDED_UNKNOWN;
+ }
+ break;
+#endif
+ case VIR_DOMAIN_EVENT_CRASHED:
+ switch (detail) {
+ case VIR_DOMAIN_EVENT_CRASHED_PANICKED: /* Guest was panicked */
+ ret = VIR_DOMAIN_CRASHED_PANICKED;
+ break;
+ default:
+ ret = VIR_DOMAIN_CRASHED_UNKNOWN;
+ }
+ break;
+ default:
+ ret = VIR_DOMAIN_NOSTATE_UNKNOWN;
+ }
+ return ret;
+}
+
+#define DOMAIN_STATE_REASON_MAX_SIZE 20
+const char *domain_reasons[][DOMAIN_STATE_REASON_MAX_SIZE] = {
+ [VIR_DOMAIN_NOSTATE][VIR_DOMAIN_NOSTATE_UNKNOWN] =
+ "the reason is unknown",
+
+ [VIR_DOMAIN_RUNNING][VIR_DOMAIN_RUNNING_UNKNOWN] =
+ "the reason is unknown",
+ [VIR_DOMAIN_RUNNING][VIR_DOMAIN_RUNNING_BOOTED] =
+ "normal startup from boot",
+ [VIR_DOMAIN_RUNNING][VIR_DOMAIN_RUNNING_MIGRATED] =
+ "migrated from another host",
+ [VIR_DOMAIN_RUNNING][VIR_DOMAIN_RUNNING_RESTORED] =
+ "restored from a state file",
+ [VIR_DOMAIN_RUNNING][VIR_DOMAIN_RUNNING_FROM_SNAPSHOT] =
+ "restored from snapshot",
+ [VIR_DOMAIN_RUNNING][VIR_DOMAIN_RUNNING_UNPAUSED] =
+ "returned from paused state",
+ [VIR_DOMAIN_RUNNING][VIR_DOMAIN_RUNNING_MIGRATION_CANCELED] =
+ "returned from migration",
+ [VIR_DOMAIN_RUNNING][VIR_DOMAIN_RUNNING_SAVE_CANCELED] =
+ "returned from failed save process",
+#ifdef HAVE_DOM_REASON_RUNNING_WAKEUP
+ [VIR_DOMAIN_RUNNING][VIR_DOMAIN_RUNNING_WAKEUP] =
+ "returned from pmsuspended due to wakeup event",
+#endif
+#ifdef HAVE_DOM_REASON_CRASHED
+ [VIR_DOMAIN_RUNNING][VIR_DOMAIN_RUNNING_CRASHED] =
+ "resumed from crashed",
+#endif
+#ifdef HAVE_DOM_REASON_POSTCOPY
+ [VIR_DOMAIN_RUNNING][VIR_DOMAIN_RUNNING_POSTCOPY] =
+ "running in post-copy migration mode",
+#endif
+ [VIR_DOMAIN_BLOCKED][VIR_DOMAIN_BLOCKED_UNKNOWN] =
+ "the reason is unknown",
+
+ [VIR_DOMAIN_PAUSED][VIR_DOMAIN_PAUSED_UNKNOWN] =
+ "the reason is unknown",
+ [VIR_DOMAIN_PAUSED][VIR_DOMAIN_PAUSED_USER] = "paused on user request",
+ [VIR_DOMAIN_PAUSED][VIR_DOMAIN_PAUSED_MIGRATION] =
+ "paused for offline migration",
+ [VIR_DOMAIN_PAUSED][VIR_DOMAIN_PAUSED_SAVE] = "paused for save",
+ [VIR_DOMAIN_PAUSED][VIR_DOMAIN_PAUSED_DUMP] =
+ "paused for offline core dump",
+ [VIR_DOMAIN_PAUSED][VIR_DOMAIN_PAUSED_IOERROR] =
+ "paused due to a disk I/O error",
+ [VIR_DOMAIN_PAUSED][VIR_DOMAIN_PAUSED_WATCHDOG] =
+ "paused due to a watchdog event",
+ [VIR_DOMAIN_PAUSED][VIR_DOMAIN_PAUSED_FROM_SNAPSHOT] =
+ "paused after restoring from snapshot",
+#ifdef HAVE_DOM_REASON_PAUSED_SHUTTING_DOWN
+ [VIR_DOMAIN_PAUSED][VIR_DOMAIN_PAUSED_SHUTTING_DOWN] =
+ "paused during shutdown process",
+#endif
+#ifdef HAVE_DOM_REASON_PAUSED_SNAPSHOT
+ [VIR_DOMAIN_PAUSED][VIR_DOMAIN_PAUSED_SNAPSHOT] =
+ "paused while creating a snapshot",
+#endif
+#ifdef HAVE_DOM_REASON_PAUSED_CRASHED
+ [VIR_DOMAIN_PAUSED][VIR_DOMAIN_PAUSED_CRASHED] =
+ "paused due to a guest crash",
+#endif
+#ifdef HAVE_DOM_REASON_PAUSED_STARTING_UP
+ [VIR_DOMAIN_PAUSED][VIR_DOMAIN_PAUSED_STARTING_UP] =
+ "the domain is being started",
+#endif
+#ifdef HAVE_DOM_REASON_POSTCOPY
+ [VIR_DOMAIN_PAUSED][VIR_DOMAIN_PAUSED_POSTCOPY] =
+ "paused for post-copy migration",
+ [VIR_DOMAIN_PAUSED][VIR_DOMAIN_PAUSED_POSTCOPY_FAILED] =
+ "paused after failed post-copy",
+#endif
+ [VIR_DOMAIN_SHUTDOWN][VIR_DOMAIN_SHUTDOWN_UNKNOWN] =
+ "the reason is unknown",
+ [VIR_DOMAIN_SHUTDOWN][VIR_DOMAIN_SHUTDOWN_USER] =
+ "shutting down on user request",
+
+ [VIR_DOMAIN_SHUTOFF][VIR_DOMAIN_SHUTOFF_UNKNOWN] =
+ "the reason is unknown",
+ [VIR_DOMAIN_SHUTOFF][VIR_DOMAIN_SHUTOFF_SHUTDOWN] = "normal shutdown",
+ [VIR_DOMAIN_SHUTOFF][VIR_DOMAIN_SHUTOFF_DESTROYED] = "forced poweroff",
+ [VIR_DOMAIN_SHUTOFF][VIR_DOMAIN_SHUTOFF_CRASHED] = "domain crashed",
+ [VIR_DOMAIN_SHUTOFF][VIR_DOMAIN_SHUTOFF_MIGRATED] =
+ "migrated to another host",
+ [VIR_DOMAIN_SHUTOFF][VIR_DOMAIN_SHUTOFF_SAVED] = "saved to a file",
+ [VIR_DOMAIN_SHUTOFF][VIR_DOMAIN_SHUTOFF_FAILED] =
+ "domain failed to start",
+ [VIR_DOMAIN_SHUTOFF][VIR_DOMAIN_SHUTOFF_FROM_SNAPSHOT] =
+ "restored from a snapshot which was taken while domain was shutoff",
+
+ [VIR_DOMAIN_CRASHED][VIR_DOMAIN_CRASHED_UNKNOWN] =
+ "the reason is unknown",
+#ifdef VIR_DOMAIN_CRASHED_PANICKED
+ [VIR_DOMAIN_CRASHED][VIR_DOMAIN_CRASHED_PANICKED] = "domain panicked",
+#endif
+
+#ifdef HAVE_DOM_STATE_PMSUSPENDED
+ [VIR_DOMAIN_PMSUSPENDED][VIR_DOMAIN_PMSUSPENDED_UNKNOWN] =
+ "the reason is unknown",
+#endif
+};
+#endif /* HAVE_DOM_REASON */
+
#define NR_CONFIG_KEYS ((sizeof config_keys / sizeof config_keys[0]) - 1)
+#define NANOSEC_IN_SEC 1e9
+
+#define GET_STATS(_f, _name, ...) \
+ do { \
+ status = _f(__VA_ARGS__); \
+ if (status != 0) \
+ ERROR(PLUGIN_NAME ": Failed to get " _name); \
+ } while (0)
/* Connection. */
-static virConnectPtr conn = 0;
-static char *conn_string = NULL;
+static virConnectPtr conn;
+static char *conn_string;
static c_complain_t conn_complain = C_COMPLAIN_INIT_STATIC;
+/* Node information required for %CPU */
+static virNodeInfo nodeinfo;
+
/* Seconds between list refreshes, 0 disables completely. */
static int interval = 60;
/* List of domains, if specified. */
-static ignorelist_t *il_domains = NULL;
+static ignorelist_t *il_domains;
/* List of block devices, if specified. */
-static ignorelist_t *il_block_devices = NULL;
+static ignorelist_t *il_block_devices;
/* List of network interface devices, if specified. */
-static ignorelist_t *il_interface_devices = NULL;
+static ignorelist_t *il_interface_devices;
static int ignore_device_match(ignorelist_t *, const char *domname,
const char *devpath);
-/* Actual list of domains found on last refresh. */
-static virDomainPtr *domains = NULL;
-static int nr_domains = 0;
-
-static void free_domains(void);
-static int add_domain(virDomainPtr dom);
-
/* Actual list of block devices found on last refresh. */
struct block_device {
virDomainPtr dom; /* domain */
char *path; /* name of block device */
};
-static struct block_device *block_devices = NULL;
-static int nr_block_devices = 0;
-
-static void free_block_devices(void);
-static int add_block_device(virDomainPtr dom, const char *path);
-
/* Actual list of network interfaces found on last refresh. */
struct interface_device {
virDomainPtr dom; /* domain */
char *number; /* interface device number */
};
-static struct interface_device *interface_devices = NULL;
-static int nr_interface_devices = 0;
+typedef struct domain_s {
+ virDomainPtr ptr;
+ virDomainInfo info;
+ bool active;
+} domain_t;
-static void free_interface_devices(void);
-static int add_interface_device(virDomainPtr dom, const char *path,
- const char *address, unsigned int number);
+struct lv_read_state {
+ /* Actual list of domains found on last refresh. */
+ domain_t *domains;
+ int nr_domains;
+
+ struct block_device *block_devices;
+ int nr_block_devices;
+
+ struct interface_device *interface_devices;
+ int nr_interface_devices;
+};
+
+static void free_domains(struct lv_read_state *state);
+static int add_domain(struct lv_read_state *state, virDomainPtr dom,
+ bool active);
+
+static void free_block_devices(struct lv_read_state *state);
+static int add_block_device(struct lv_read_state *state, virDomainPtr dom,
+ const char *path);
+
+static void free_interface_devices(struct lv_read_state *state);
+static int add_interface_device(struct lv_read_state *state, virDomainPtr dom,
+ const char *path, const char *address,
+ unsigned int number);
+
+#define METADATA_VM_PARTITION_URI "http://ovirt.org/ovirtmap/tag/1.0"
+#define METADATA_VM_PARTITION_ELEMENT "tag"
+#define METADATA_VM_PARTITION_PREFIX "ovirtmap"
+
+#define BUFFER_MAX_LEN 256
+#define PARTITION_TAG_MAX_LEN 32
+
+struct lv_read_instance {
+ struct lv_read_state read_state;
+ char tag[PARTITION_TAG_MAX_LEN];
+ size_t id;
+};
+
+struct lv_user_data {
+ struct lv_read_instance inst;
+ user_data_t ud;
+};
+
+#define NR_INSTANCES_DEFAULT 1
+#define NR_INSTANCES_MAX 128
+static int nr_instances = NR_INSTANCES_DEFAULT;
+static struct lv_user_data lv_read_user_data[NR_INSTANCES_MAX];
/* HostnameFormat. */
#define HF_MAX_FIELDS 3
/* InterfaceFormat. */
enum if_field { if_address, if_name, if_number };
+/* ExtraStats */
+#define EX_STATS_MAX_FIELDS 15
+enum ex_stats {
+ ex_stats_none = 0,
+ ex_stats_disk = 1 << 0,
+ ex_stats_pcpu = 1 << 1,
+ ex_stats_cpu_util = 1 << 2,
+ ex_stats_domain_state = 1 << 3,
+#ifdef HAVE_PERF_STATS
+ ex_stats_perf = 1 << 4,
+#endif
+ ex_stats_vcpupin = 1 << 5,
+#ifdef HAVE_DISK_ERR
+ ex_stats_disk_err = 1 << 6,
+#endif
+#ifdef HAVE_FS_INFO
+ ex_stats_fs_info = 1 << 7,
+#endif
+#ifdef HAVE_JOB_STATS
+ ex_stats_job_stats_completed = 1 << 8,
+ ex_stats_job_stats_background = 1 << 9,
+#endif
+};
+
+static unsigned int extra_stats = ex_stats_none;
+
+struct ex_stats_item {
+ const char *name;
+ enum ex_stats flag;
+};
+static const struct ex_stats_item ex_stats_table[] = {
+ {"disk", ex_stats_disk},
+ {"pcpu", ex_stats_pcpu},
+ {"cpu_util", ex_stats_cpu_util},
+ {"domain_state", ex_stats_domain_state},
+#ifdef HAVE_PERF_STATS
+ {"perf", ex_stats_perf},
+#endif
+ {"vcpupin", ex_stats_vcpupin},
+#ifdef HAVE_DISK_ERR
+ {"disk_err", ex_stats_disk_err},
+#endif
+#ifdef HAVE_FS_INFO
+ {"fs_info", ex_stats_fs_info},
+#endif
+#ifdef HAVE_JOB_STATS
+ {"job_stats_completed", ex_stats_job_stats_completed},
+ {"job_stats_background", ex_stats_job_stats_background},
+#endif
+ {NULL, ex_stats_none},
+};
+
/* BlockDeviceFormatBasename */
-_Bool blockdevice_format_basename = 0;
+static bool blockdevice_format_basename;
static enum bd_field blockdevice_format = target;
static enum if_field interface_format = if_name;
/* Time that we last refreshed. */
static time_t last_refresh = (time_t)0;
-static int refresh_lists(void);
+static int refresh_lists(struct lv_read_instance *inst);
+
+struct lv_info {
+ virDomainInfo di;
+ unsigned long long total_user_cpu_time;
+ unsigned long long total_syst_cpu_time;
+};
+
+struct lv_block_info {
+ virDomainBlockStatsStruct bi;
+
+ long long rd_total_times;
+ long long wr_total_times;
+
+ long long fl_req;
+ long long fl_total_times;
+};
+
+static void init_block_info(struct lv_block_info *binfo) {
+ if (binfo == NULL)
+ return;
+
+ binfo->bi.rd_req = -1;
+ binfo->bi.wr_req = -1;
+ binfo->bi.rd_bytes = -1;
+ binfo->bi.wr_bytes = -1;
+
+ binfo->rd_total_times = -1;
+ binfo->wr_total_times = -1;
+ binfo->fl_req = -1;
+ binfo->fl_total_times = -1;
+}
+
+#ifdef HAVE_BLOCK_STATS_FLAGS
+
+#define GET_BLOCK_INFO_VALUE(NAME, FIELD) \
+ if (!strcmp(param[i].field, NAME)) { \
+ binfo->FIELD = param[i].value.l; \
+ continue; \
+ }
+
+static int get_block_info(struct lv_block_info *binfo,
+ virTypedParameterPtr param, int nparams) {
+ if (binfo == NULL || param == NULL)
+ return -1;
+
+ for (int i = 0; i < nparams; ++i) {
+ /* ignore type. Everything must be LLONG anyway. */
+ GET_BLOCK_INFO_VALUE("rd_operations", bi.rd_req);
+ GET_BLOCK_INFO_VALUE("wr_operations", bi.wr_req);
+ GET_BLOCK_INFO_VALUE("rd_bytes", bi.rd_bytes);
+ GET_BLOCK_INFO_VALUE("wr_bytes", bi.wr_bytes);
+ GET_BLOCK_INFO_VALUE("rd_total_times", rd_total_times);
+ GET_BLOCK_INFO_VALUE("wr_total_times", wr_total_times);
+ GET_BLOCK_INFO_VALUE("flush_operations", fl_req);
+ GET_BLOCK_INFO_VALUE("flush_total_times", fl_total_times);
+ }
+
+ return 0;
+}
+
+#undef GET_BLOCK_INFO_VALUE
+
+#endif /* HAVE_BLOCK_STATS_FLAGS */
/* ERROR(...) macro for virterrors. */
#define VIRT_ERROR(conn, s) \
ERROR("%s: %s", (s), err->message); \
} while (0)
+static void init_lv_info(struct lv_info *info) {
+ if (info != NULL)
+ memset(info, 0, sizeof(*info));
+}
+
+static int lv_domain_info(virDomainPtr dom, struct lv_info *info) {
+#ifdef HAVE_CPU_STATS
+ virTypedParameterPtr param = NULL;
+ int nparams = 0;
+#endif /* HAVE_CPU_STATS */
+ int ret = virDomainGetInfo(dom, &(info->di));
+ if (ret != 0) {
+ return ret;
+ }
+
+#ifdef HAVE_CPU_STATS
+ nparams = virDomainGetCPUStats(dom, NULL, 0, -1, 1, 0);
+ if (nparams < 0) {
+ VIRT_ERROR(conn, "getting the CPU params count");
+ return -1;
+ }
+
+ param = calloc(nparams, sizeof(virTypedParameter));
+ if (param == NULL) {
+ ERROR("virt plugin: alloc(%i) for cpu parameters failed.", nparams);
+ return -1;
+ }
+
+ ret = virDomainGetCPUStats(dom, param, nparams, -1, 1, 0); // total stats.
+ if (ret < 0) {
+ virTypedParamsClear(param, nparams);
+ sfree(param);
+ VIRT_ERROR(conn, "getting the disk params values");
+ return -1;
+ }
+
+ for (int i = 0; i < nparams; ++i) {
+ if (!strcmp(param[i].field, "user_time"))
+ info->total_user_cpu_time = param[i].value.ul;
+ else if (!strcmp(param[i].field, "system_time"))
+ info->total_syst_cpu_time = param[i].value.ul;
+ }
+
+ virTypedParamsClear(param, nparams);
+ sfree(param);
+#endif /* HAVE_CPU_STATS */
+
+ return 0;
+}
+
static void init_value_list(value_list_t *vl, virDomainPtr dom) {
- int n;
const char *name;
char uuid[VIR_UUID_STRING_BUFLEN];
if (hostname_format[i] == hf_none)
continue;
- n = DATA_MAX_NAME_LEN - strlen(vl->host) - 2;
-
- if (i > 0 && n >= 1) {
- strncat(vl->host, ":", 1);
- n--;
- }
+ if (i > 0)
+ SSTRNCAT(vl->host, ":", sizeof(vl->host));
switch (hostname_format[i]) {
case hf_none:
break;
case hf_hostname:
- strncat(vl->host, hostname_g, n);
+ SSTRNCAT(vl->host, hostname_g, sizeof(vl->host));
break;
case hf_name:
name = virDomainGetName(dom);
if (name)
- strncat(vl->host, name, n);
+ SSTRNCAT(vl->host, name, sizeof(vl->host));
break;
case hf_uuid:
if (virDomainGetUUIDString(dom, uuid) == 0)
- strncat(vl->host, uuid, n);
+ SSTRNCAT(vl->host, uuid, sizeof(vl->host));
break;
}
}
- vl->host[sizeof(vl->host) - 1] = '\0';
-
/* Construct the plugin instance field according to PluginInstanceFormat. */
for (int i = 0; i < PLGINST_MAX_FIELDS; ++i) {
if (plugin_instance_format[i] == plginst_none)
continue;
- n = sizeof(vl->plugin_instance) - strlen(vl->plugin_instance) - 2;
-
- if (i > 0 && n >= 1) {
- strncat(vl->plugin_instance, ":", 1);
- n--;
- }
+ if (i > 0)
+ SSTRNCAT(vl->plugin_instance, ":", sizeof(vl->plugin_instance));
switch (plugin_instance_format[i]) {
case plginst_none:
case plginst_name:
name = virDomainGetName(dom);
if (name)
- strncat(vl->plugin_instance, name, n);
+ SSTRNCAT(vl->plugin_instance, name, sizeof(vl->plugin_instance));
break;
case plginst_uuid:
if (virDomainGetUUIDString(dom, uuid) == 0)
- strncat(vl->plugin_instance, uuid, n);
+ SSTRNCAT(vl->plugin_instance, uuid, sizeof(vl->plugin_instance));
break;
}
}
- vl->plugin_instance[sizeof(vl->plugin_instance) - 1] = '\0';
-
} /* void init_value_list */
+static int init_notif(notification_t *notif, const virDomainPtr domain,
+ int severity, const char *msg, const char *type,
+ const char *type_instance) {
+ value_list_t vl = VALUE_LIST_INIT;
+
+ if (!notif) {
+ ERROR(PLUGIN_NAME ": init_notif: NULL pointer");
+ return -1;
+ }
+
+ init_value_list(&vl, domain);
+ notification_init(notif, severity, msg, vl.host, vl.plugin,
+ vl.plugin_instance, type, type_instance);
+ notif->time = cdtime();
+ return 0;
+}
+
+static void submit_notif(const virDomainPtr domain, int severity,
+ const char *msg, const char *type,
+ const char *type_instance) {
+ notification_t notif;
+
+ init_notif(¬if, domain, severity, msg, type, type_instance);
+ plugin_dispatch_notification(¬if);
+ if (notif.meta)
+ plugin_notification_meta_free(notif.meta);
+}
+
static void submit(virDomainPtr dom, char const *type,
char const *type_instance, value_t *values,
size_t values_len) {
plugin_dispatch_values(&vl);
}
-static void memory_submit(gauge_t value, virDomainPtr dom) {
+static void memory_submit(virDomainPtr dom, gauge_t value) {
submit(dom, "memory", "total", &(value_t){.gauge = value}, 1);
}
int tag_index) {
static const char *tags[] = {"swap_in", "swap_out", "major_fault",
"minor_fault", "unused", "available",
- "actual_balloon", "rss"};
+ "actual_balloon", "rss", "usable",
+ "last_update"};
- if ((tag_index < 0) || (tag_index >= STATIC_ARRAY_SIZE(tags))) {
+ if ((tag_index < 0) || (tag_index >= (int)STATIC_ARRAY_SIZE(tags))) {
ERROR("virt plugin: Array index out of bounds: tag_index = %d", tag_index);
return;
}
submit(dom, "memory", tags[tag_index], &(value_t){.gauge = value}, 1);
}
-static void cpu_submit(unsigned long long value, virDomainPtr dom,
- const char *type) {
- submit(dom, type, NULL, &(value_t){.derive = (derive_t)value}, 1);
-}
-
-static void vcpu_submit(derive_t value, virDomainPtr dom, int vcpu_nr,
- const char *type) {
- char type_instance[DATA_MAX_NAME_LEN];
-
- ssnprintf(type_instance, sizeof(type_instance), "%d", vcpu_nr);
-
- submit(dom, type, type_instance, &(value_t){.derive = value}, 1);
-}
-
static void submit_derive2(const char *type, derive_t v0, derive_t v1,
virDomainPtr dom, const char *devname) {
value_t values[] = {
submit(dom, type, devname, values, STATIC_ARRAY_SIZE(values));
} /* void submit_derive2 */
-static int lv_init(void) {
- if (virInitialize() != 0)
- return -1;
- else
- return 0;
+static void pcpu_submit(virDomainPtr dom, struct lv_info *info) {
+#ifdef HAVE_CPU_STATS
+ if (extra_stats & ex_stats_pcpu)
+ submit_derive2("ps_cputime", info->total_user_cpu_time,
+ info->total_syst_cpu_time, dom, NULL);
+#endif /* HAVE_CPU_STATS */
}
-static int lv_config(const char *key, const char *value) {
- if (virInitialize() != 0)
- return 1;
+static double cpu_ns_to_percent(unsigned int node_cpus,
+ unsigned long long cpu_time_old,
+ unsigned long long cpu_time_new) {
+ double percent = 0.0;
+ unsigned long long cpu_time_diff = 0;
+ double time_diff_sec = CDTIME_T_TO_DOUBLE(plugin_get_interval());
+
+ if (node_cpus != 0 && time_diff_sec != 0 && cpu_time_old != 0) {
+ cpu_time_diff = cpu_time_new - cpu_time_old;
+ percent = ((double)(100 * cpu_time_diff)) /
+ (time_diff_sec * node_cpus * NANOSEC_IN_SEC);
+ }
- if (il_domains == NULL)
- il_domains = ignorelist_create(1);
- if (il_block_devices == NULL)
- il_block_devices = ignorelist_create(1);
- if (il_interface_devices == NULL)
- il_interface_devices = ignorelist_create(1);
+ DEBUG(PLUGIN_NAME ": node_cpus=%u cpu_time_old=%" PRIu64
+ " cpu_time_new=%" PRIu64 "cpu_time_diff=%" PRIu64
+ " time_diff_sec=%f percent=%f",
+ node_cpus, (uint64_t)cpu_time_old, (uint64_t)cpu_time_new,
+ (uint64_t)cpu_time_diff, time_diff_sec, percent);
- if (strcasecmp(key, "Connection") == 0) {
- char *tmp = strdup(value);
- if (tmp == NULL) {
- ERROR(PLUGIN_NAME " plugin: Connection strdup failed.");
- return 1;
- }
- sfree(conn_string);
- conn_string = tmp;
- return 0;
- }
+ return percent;
+}
- if (strcasecmp(key, "RefreshInterval") == 0) {
- char *eptr = NULL;
- interval = strtol(value, &eptr, 10);
- if (eptr == NULL || *eptr != '\0')
- return 1;
- return 0;
- }
+static void cpu_submit(const domain_t *dom, unsigned long long cpuTime_new) {
- if (strcasecmp(key, "Domain") == 0) {
- if (ignorelist_add(il_domains, value))
- return 1;
- return 0;
- }
- if (strcasecmp(key, "BlockDevice") == 0) {
- if (ignorelist_add(il_block_devices, value))
- return 1;
- return 0;
+ if (!dom)
+ return;
+
+ if (extra_stats & ex_stats_cpu_util) {
+ /* Computing %CPU requires 2 samples of cpuTime */
+ if (dom->info.cpuTime != 0 && cpuTime_new != 0) {
+
+ submit(dom->ptr, "percent", "virt_cpu_total",
+ &(value_t){.gauge = cpu_ns_to_percent(
+ nodeinfo.cpus, dom->info.cpuTime, cpuTime_new)},
+ 1);
+ }
+ }
+
+ submit(dom->ptr, "virt_cpu_total", NULL, &(value_t){.derive = cpuTime_new},
+ 1);
+}
+
+static void vcpu_submit(derive_t value, virDomainPtr dom, int vcpu_nr,
+ const char *type) {
+ char type_instance[DATA_MAX_NAME_LEN];
+
+ snprintf(type_instance, sizeof(type_instance), "%d", vcpu_nr);
+ submit(dom, type, type_instance, &(value_t){.derive = value}, 1);
+}
+
+static void disk_submit(struct lv_block_info *binfo, virDomainPtr dom,
+ const char *dev) {
+ char *dev_copy = strdup(dev);
+ const char *type_instance = dev_copy;
+
+ if (!dev_copy)
+ return;
+
+ if (blockdevice_format_basename && blockdevice_format == source)
+ type_instance = basename(dev_copy);
+
+ if (!type_instance) {
+ sfree(dev_copy);
+ return;
+ }
+
+ char flush_type_instance[DATA_MAX_NAME_LEN];
+ snprintf(flush_type_instance, sizeof(flush_type_instance), "flush-%s",
+ type_instance);
+
+ if ((binfo->bi.rd_req != -1) && (binfo->bi.wr_req != -1))
+ submit_derive2("disk_ops", (derive_t)binfo->bi.rd_req,
+ (derive_t)binfo->bi.wr_req, dom, type_instance);
+
+ if ((binfo->bi.rd_bytes != -1) && (binfo->bi.wr_bytes != -1))
+ submit_derive2("disk_octets", (derive_t)binfo->bi.rd_bytes,
+ (derive_t)binfo->bi.wr_bytes, dom, type_instance);
+
+ if (extra_stats & ex_stats_disk) {
+ if ((binfo->rd_total_times != -1) && (binfo->wr_total_times != -1))
+ submit_derive2("disk_time", (derive_t)binfo->rd_total_times,
+ (derive_t)binfo->wr_total_times, dom, type_instance);
+
+ if (binfo->fl_req != -1)
+ submit(dom, "total_requests", flush_type_instance,
+ &(value_t){.derive = (derive_t)binfo->fl_req}, 1);
+ if (binfo->fl_total_times != -1) {
+ derive_t value = binfo->fl_total_times / 1000; // ns -> ms
+ submit(dom, "total_time_in_ms", flush_type_instance,
+ &(value_t){.derive = value}, 1);
+ }
+ }
+
+ sfree(dev_copy);
+}
+
+static unsigned int parse_ex_stats_flags(char **exstats, int numexstats) {
+ unsigned int ex_stats_flags = ex_stats_none;
+ for (int i = 0; i < numexstats; i++) {
+ for (int j = 0; ex_stats_table[j].name != NULL; j++) {
+ if (strcasecmp(exstats[i], ex_stats_table[j].name) == 0) {
+ DEBUG(PLUGIN_NAME " plugin: enabling extra stats for '%s'",
+ ex_stats_table[j].name);
+ ex_stats_flags |= ex_stats_table[j].flag;
+ break;
+ }
+
+ if (ex_stats_table[j + 1].name == NULL) {
+ ERROR(PLUGIN_NAME ": Unmatched ExtraStats option: %s", exstats[i]);
+ }
+ }
+ }
+ return ex_stats_flags;
+}
+
+static void domain_state_submit_notif(virDomainPtr dom, int state, int reason) {
+ if ((state < 0) || (state >= STATIC_ARRAY_SIZE(domain_states))) {
+ ERROR(PLUGIN_NAME ": Array index out of bounds: state=%d", state);
+ return;
+ }
+
+ char msg[DATA_MAX_NAME_LEN];
+ const char *state_str = domain_states[state];
+#ifdef HAVE_DOM_REASON
+ if ((reason < 0) || (reason >= STATIC_ARRAY_SIZE(domain_reasons[0]))) {
+ ERROR(PLUGIN_NAME ": Array index out of bounds: reason=%d", reason);
+ return;
+ }
+
+ const char *reason_str = domain_reasons[state][reason];
+ /* Array size for domain reasons is fixed, but different domain states can
+ * have different number of reasons. We need to check if reason was
+ * successfully parsed */
+ if (!reason_str) {
+ ERROR(PLUGIN_NAME ": Invalid reason (%d) for domain state: %s", reason,
+ state_str);
+ return;
+ }
+#else
+ const char *reason_str = "N/A";
+#endif
+
+ snprintf(msg, sizeof(msg), "Domain state: %s. Reason: %s", state_str,
+ reason_str);
+
+ int severity;
+ switch (state) {
+ case VIR_DOMAIN_NOSTATE:
+ case VIR_DOMAIN_RUNNING:
+ case VIR_DOMAIN_SHUTDOWN:
+ case VIR_DOMAIN_SHUTOFF:
+ severity = NOTIF_OKAY;
+ break;
+ case VIR_DOMAIN_BLOCKED:
+ case VIR_DOMAIN_PAUSED:
+#ifdef DOM_STATE_PMSUSPENDED
+ case VIR_DOMAIN_PMSUSPENDED:
+#endif
+ severity = NOTIF_WARNING;
+ break;
+ case VIR_DOMAIN_CRASHED:
+ severity = NOTIF_FAILURE;
+ break;
+ default:
+ ERROR(PLUGIN_NAME ": Unrecognized domain state (%d)", state);
+ return;
+ }
+ submit_notif(dom, severity, msg, "domain_state", NULL);
+}
+
+static int lv_config(const char *key, const char *value) {
+ if (virInitialize() != 0)
+ return 1;
+
+ if (il_domains == NULL)
+ il_domains = ignorelist_create(1);
+ if (il_block_devices == NULL)
+ il_block_devices = ignorelist_create(1);
+ if (il_interface_devices == NULL)
+ il_interface_devices = ignorelist_create(1);
+
+ if (strcasecmp(key, "Connection") == 0) {
+ char *tmp = strdup(value);
+ if (tmp == NULL) {
+ ERROR(PLUGIN_NAME " plugin: Connection strdup failed.");
+ return 1;
+ }
+ sfree(conn_string);
+ conn_string = tmp;
+ return 0;
+ }
+
+ if (strcasecmp(key, "RefreshInterval") == 0) {
+ char *eptr = NULL;
+ interval = strtol(value, &eptr, 10);
+ if (eptr == NULL || *eptr != '\0')
+ return 1;
+ return 0;
+ }
+
+ if (strcasecmp(key, "Domain") == 0) {
+ if (ignorelist_add(il_domains, value))
+ return 1;
+ return 0;
+ }
+ if (strcasecmp(key, "BlockDevice") == 0) {
+ if (ignorelist_add(il_block_devices, value))
+ return 1;
+ return 0;
}
if (strcasecmp(key, "BlockDeviceFormat") == 0) {
return 0;
}
if (strcasecmp(key, "BlockDeviceFormatBasename") == 0) {
- blockdevice_format_basename = IS_TRUE(value);
+ blockdevice_format_basename = IS_TRUE(value) ? true : false;
return 0;
}
if (strcasecmp(key, "InterfaceDevice") == 0) {
return -1;
}
}
- sfree(value_copy);
-
- for (int i = n; i < HF_MAX_FIELDS; ++i)
- hostname_format[i] = hf_none;
+ sfree(value_copy);
+
+ for (int i = n; i < HF_MAX_FIELDS; ++i)
+ hostname_format[i] = hf_none;
+
+ return 0;
+ }
+
+ if (strcasecmp(key, "PluginInstanceFormat") == 0) {
+ char *value_copy;
+ char *fields[PLGINST_MAX_FIELDS];
+ int n;
+
+ value_copy = strdup(value);
+ if (value_copy == NULL) {
+ ERROR(PLUGIN_NAME " plugin: strdup failed.");
+ return -1;
+ }
+
+ n = strsplit(value_copy, fields, PLGINST_MAX_FIELDS);
+ if (n < 1) {
+ sfree(value_copy);
+ ERROR(PLUGIN_NAME " plugin: PluginInstanceFormat: no fields");
+ return -1;
+ }
+
+ for (int i = 0; i < n; ++i) {
+ if (strcasecmp(fields[i], "none") == 0) {
+ plugin_instance_format[i] = plginst_none;
+ break;
+ } else if (strcasecmp(fields[i], "name") == 0)
+ plugin_instance_format[i] = plginst_name;
+ else if (strcasecmp(fields[i], "uuid") == 0)
+ plugin_instance_format[i] = plginst_uuid;
+ else {
+ ERROR(PLUGIN_NAME " plugin: unknown PluginInstanceFormat field: %s",
+ fields[i]);
+ sfree(value_copy);
+ return -1;
+ }
+ }
+ sfree(value_copy);
+
+ for (int i = n; i < PLGINST_MAX_FIELDS; ++i)
+ plugin_instance_format[i] = plginst_none;
+
+ return 0;
+ }
+
+ if (strcasecmp(key, "InterfaceFormat") == 0) {
+ if (strcasecmp(value, "name") == 0)
+ interface_format = if_name;
+ else if (strcasecmp(value, "address") == 0)
+ interface_format = if_address;
+ else if (strcasecmp(value, "number") == 0)
+ interface_format = if_number;
+ else {
+ ERROR(PLUGIN_NAME " plugin: unknown InterfaceFormat: %s", value);
+ return -1;
+ }
+ return 0;
+ }
+
+ if (strcasecmp(key, "Instances") == 0) {
+ char *eptr = NULL;
+ double val = strtod(value, &eptr);
+
+ if (*eptr != '\0') {
+ ERROR(PLUGIN_NAME " plugin: Invalid value for Instances = '%s'", value);
+ return 1;
+ }
+ if (val <= 0) {
+ ERROR(PLUGIN_NAME " plugin: Instances <= 0 makes no sense.");
+ return 1;
+ }
+ if (val > NR_INSTANCES_MAX) {
+ ERROR(PLUGIN_NAME " plugin: Instances=%f > NR_INSTANCES_MAX=%i"
+ " use a lower setting or recompile the plugin.",
+ val, NR_INSTANCES_MAX);
+ return 1;
+ }
+
+ nr_instances = (int)val;
+ DEBUG(PLUGIN_NAME " plugin: configured %i instances", nr_instances);
+ return 0;
+ }
+
+ if (strcasecmp(key, "ExtraStats") == 0) {
+ char *localvalue = strdup(value);
+ if (localvalue != NULL) {
+ char *exstats[EX_STATS_MAX_FIELDS];
+ int numexstats =
+ strsplit(localvalue, exstats, STATIC_ARRAY_SIZE(exstats));
+ extra_stats = parse_ex_stats_flags(exstats, numexstats);
+ sfree(localvalue);
+
+#ifdef HAVE_JOB_STATS
+ if ((extra_stats & ex_stats_job_stats_completed) &&
+ (extra_stats & ex_stats_job_stats_background)) {
+ ERROR(PLUGIN_NAME " plugin: Invalid job stats configuration. Only one "
+ "type of job statistics can be collected at the same "
+ "time");
+ return 1;
+ }
+#endif
+ }
+ }
+
+ if (strcasecmp(key, "PersistentNotification") == 0) {
+ persistent_notification = IS_TRUE(value);
+ return 0;
+ }
+
+ /* Unrecognised option. */
+ return -1;
+}
+
+static int lv_connect(void) {
+ if (conn == NULL) {
+/* `conn_string == NULL' is acceptable */
+#ifdef HAVE_FS_INFO
+ /* virDomainGetFSInfo requires full read-write access connection */
+ if (extra_stats & ex_stats_fs_info)
+ conn = virConnectOpen(conn_string);
+ else
+#endif
+ conn = virConnectOpenReadOnly(conn_string);
+ if (conn == NULL) {
+ c_complain(LOG_ERR, &conn_complain,
+ PLUGIN_NAME " plugin: Unable to connect: "
+ "virConnectOpen failed.");
+ return -1;
+ }
+ int status = virNodeGetInfo(conn, &nodeinfo);
+ if (status != 0) {
+ ERROR(PLUGIN_NAME ": virNodeGetInfo failed");
+ return -1;
+ }
+ }
+ c_release(LOG_NOTICE, &conn_complain,
+ PLUGIN_NAME " plugin: Connection established.");
+ return 0;
+}
+
+static void lv_disconnect(void) {
+ if (conn != NULL)
+ virConnectClose(conn);
+ conn = NULL;
+ WARNING(PLUGIN_NAME " plugin: closed connection to libvirt");
+}
+
+static int lv_domain_block_info(virDomainPtr dom, const char *path,
+ struct lv_block_info *binfo) {
+#ifdef HAVE_BLOCK_STATS_FLAGS
+ int nparams = 0;
+ if (virDomainBlockStatsFlags(dom, path, NULL, &nparams, 0) < 0 ||
+ nparams <= 0) {
+ VIRT_ERROR(conn, "getting the disk params count");
+ return -1;
+ }
+
+ virTypedParameterPtr params = calloc((size_t)nparams, sizeof(*params));
+ if (params == NULL) {
+ ERROR("virt plugin: alloc(%i) for block=%s parameters failed.", nparams,
+ path);
+ return -1;
+ }
+
+ int rc = -1;
+ if (virDomainBlockStatsFlags(dom, path, params, &nparams, 0) < 0) {
+ VIRT_ERROR(conn, "getting the disk params values");
+ } else {
+ rc = get_block_info(binfo, params, nparams);
+ }
+
+ virTypedParamsClear(params, nparams);
+ sfree(params);
+ return rc;
+#else
+ return virDomainBlockStats(dom, path, &(binfo->bi), sizeof(binfo->bi));
+#endif /* HAVE_BLOCK_STATS_FLAGS */
+}
+
+#ifdef HAVE_PERF_STATS
+static void perf_submit(virDomainStatsRecordPtr stats) {
+ for (int i = 0; i < stats->nparams; ++i) {
+ /* Replace '.' with '_' in event field to match other metrics' naming
+ * convention */
+ char *c = strchr(stats->params[i].field, '.');
+ if (c)
+ *c = '_';
+ submit(stats->dom, "perf", stats->params[i].field,
+ &(value_t){.derive = stats->params[i].value.ul}, 1);
+ }
+}
+
+static int get_perf_events(virDomainPtr domain) {
+ virDomainStatsRecordPtr *stats = NULL;
+ /* virDomainListGetStats requires a NULL terminated list of domains */
+ virDomainPtr domain_array[] = {domain, NULL};
+
+ int status =
+ virDomainListGetStats(domain_array, VIR_DOMAIN_STATS_PERF, &stats, 0);
+ if (status == -1) {
+ ERROR("virt plugin: virDomainListGetStats failed with status %i.", status);
+ return status;
+ }
+
+ for (int i = 0; i < status; ++i)
+ perf_submit(stats[i]);
+
+ virDomainStatsRecordListFree(stats);
+ return 0;
+}
+#endif /* HAVE_PERF_STATS */
+
+static void vcpu_pin_submit(virDomainPtr dom, int max_cpus, int vcpu,
+ unsigned char *cpu_maps, int cpu_map_len) {
+ for (int cpu = 0; cpu < max_cpus; ++cpu) {
+ char type_instance[DATA_MAX_NAME_LEN];
+ bool is_set = VIR_CPU_USABLE(cpu_maps, cpu_map_len, vcpu, cpu);
+
+ snprintf(type_instance, sizeof(type_instance), "vcpu_%d-cpu_%d", vcpu, cpu);
+ submit(dom, "cpu_affinity", type_instance, &(value_t){.gauge = is_set}, 1);
+ }
+}
+
+static int get_vcpu_stats(virDomainPtr domain, unsigned short nr_virt_cpu) {
+ int max_cpus = VIR_NODEINFO_MAXCPUS(nodeinfo);
+ int cpu_map_len = VIR_CPU_MAPLEN(max_cpus);
+
+ virVcpuInfoPtr vinfo = calloc(nr_virt_cpu, sizeof(vinfo[0]));
+ if (vinfo == NULL) {
+ ERROR(PLUGIN_NAME " plugin: malloc failed.");
+ return -1;
+ }
+
+ unsigned char *cpumaps = calloc(nr_virt_cpu, cpu_map_len);
+ if (cpumaps == NULL) {
+ ERROR(PLUGIN_NAME " plugin: malloc failed.");
+ sfree(vinfo);
+ return -1;
+ }
+
+ int status =
+ virDomainGetVcpus(domain, vinfo, nr_virt_cpu, cpumaps, cpu_map_len);
+ if (status < 0) {
+ ERROR(PLUGIN_NAME " plugin: virDomainGetVcpus failed with status %i.",
+ status);
+ sfree(cpumaps);
+ sfree(vinfo);
+ return status;
+ }
+
+ for (int i = 0; i < nr_virt_cpu; ++i) {
+ vcpu_submit(vinfo[i].cpuTime, domain, vinfo[i].number, "virt_vcpu");
+ if (extra_stats & ex_stats_vcpupin)
+ vcpu_pin_submit(domain, max_cpus, i, cpumaps, cpu_map_len);
+ }
+
+ sfree(cpumaps);
+ sfree(vinfo);
+ return 0;
+}
+
+#ifdef HAVE_DOM_REASON
+
+static void domain_state_submit(virDomainPtr dom, int state, int reason) {
+ value_t values[] = {
+ {.gauge = (gauge_t)state}, {.gauge = (gauge_t)reason},
+ };
+
+ submit(dom, "domain_state", NULL, values, STATIC_ARRAY_SIZE(values));
+}
+
+static int get_domain_state(virDomainPtr domain) {
+ int domain_state = 0;
+ int domain_reason = 0;
+
+ int status = virDomainGetState(domain, &domain_state, &domain_reason, 0);
+ if (status != 0) {
+ ERROR(PLUGIN_NAME " plugin: virDomainGetState failed with status %i.",
+ status);
+ return status;
+ }
+
+ domain_state_submit(domain, domain_state, domain_reason);
+
+ return status;
+}
+
+#ifdef HAVE_LIST_ALL_DOMAINS
+static int get_domain_state_notify(virDomainPtr domain) {
+ int domain_state = 0;
+ int domain_reason = 0;
+
+ int status = virDomainGetState(domain, &domain_state, &domain_reason, 0);
+ if (status != 0) {
+ ERROR(PLUGIN_NAME " plugin: virDomainGetState failed with status %i.",
+ status);
+ return status;
+ }
+
+ if (persistent_notification)
+ domain_state_submit_notif(domain, domain_state, domain_reason);
+
+ return status;
+}
+#endif /* HAVE_LIST_ALL_DOMAINS */
+#endif /* HAVE_DOM_REASON */
+
+static int get_memory_stats(virDomainPtr domain) {
+ virDomainMemoryStatPtr minfo =
+ calloc(VIR_DOMAIN_MEMORY_STAT_NR, sizeof(virDomainMemoryStatStruct));
+ if (minfo == NULL) {
+ ERROR("virt plugin: malloc failed.");
+ return -1;
+ }
+
+ int mem_stats =
+ virDomainMemoryStats(domain, minfo, VIR_DOMAIN_MEMORY_STAT_NR, 0);
+ if (mem_stats < 0) {
+ ERROR("virt plugin: virDomainMemoryStats failed with mem_stats %i.",
+ mem_stats);
+ sfree(minfo);
+ return mem_stats;
+ }
+
+ for (int i = 0; i < mem_stats; i++)
+ memory_stats_submit((gauge_t)minfo[i].val * 1024, domain, minfo[i].tag);
+
+ sfree(minfo);
+ return 0;
+}
+
+#ifdef HAVE_DISK_ERR
+static void disk_err_submit(virDomainPtr domain,
+ virDomainDiskErrorPtr disk_err) {
+ submit(domain, "disk_error", disk_err->disk,
+ &(value_t){.gauge = disk_err->error}, 1);
+}
+
+static int get_disk_err(virDomainPtr domain) {
+ /* Get preferred size of disk errors array */
+ int disk_err_count = virDomainGetDiskErrors(domain, NULL, 0, 0);
+ if (disk_err_count == -1) {
+ ERROR(PLUGIN_NAME
+ " plugin: failed to get preferred size of disk errors array");
+ return -1;
+ }
+
+ DEBUG(PLUGIN_NAME
+ " plugin: preferred size of disk errors array: %d for domain %s",
+ disk_err_count, virDomainGetName(domain));
+ virDomainDiskError disk_err[disk_err_count];
+
+ disk_err_count = virDomainGetDiskErrors(domain, disk_err, disk_err_count, 0);
+ if (disk_err_count == -1) {
+ ERROR(PLUGIN_NAME " plugin: virDomainGetDiskErrors failed with status %d",
+ disk_err_count);
+ return -1;
+ }
+
+ DEBUG(PLUGIN_NAME " plugin: detected %d disk errors in domain %s",
+ disk_err_count, virDomainGetName(domain));
+
+ for (int i = 0; i < disk_err_count; ++i) {
+ disk_err_submit(domain, &disk_err[i]);
+ sfree(disk_err[i].disk);
+ }
+
+ return 0;
+}
+#endif /* HAVE_DISK_ERR */
+
+static int get_block_stats(struct block_device *block_dev) {
+
+ if (!block_dev) {
+ ERROR(PLUGIN_NAME " plugin: get_block_stats NULL pointer");
+ return -1;
+ }
+
+ struct lv_block_info binfo;
+ init_block_info(&binfo);
+
+ if (lv_domain_block_info(block_dev->dom, block_dev->path, &binfo) < 0) {
+ ERROR(PLUGIN_NAME " plugin: lv_domain_block_info failed");
+ return -1;
+ }
+
+ disk_submit(&binfo, block_dev->dom, block_dev->path);
+ return 0;
+}
+
+#ifdef HAVE_FS_INFO
+
+#define NM_ADD_ITEM(_fun, _name, _val) \
+ do { \
+ ret = _fun(¬if, _name, _val); \
+ if (ret != 0) { \
+ ERROR(PLUGIN_NAME " plugin: failed to add notification metadata"); \
+ goto cleanup; \
+ } \
+ } while (0)
+
+#define NM_ADD_STR_ITEMS(_items, _size) \
+ do { \
+ for (int _i = 0; _i < _size; ++_i) { \
+ DEBUG(PLUGIN_NAME \
+ " plugin: Adding notification metadata name=%s value=%s", \
+ _items[_i].name, _items[_i].value); \
+ NM_ADD_ITEM(plugin_notification_meta_add_string, _items[_i].name, \
+ _items[_i].value); \
+ } \
+ } while (0)
+
+static int fs_info_notify(virDomainPtr domain, virDomainFSInfoPtr fs_info) {
+ notification_t notif;
+ int ret = 0;
+
+ /* Local struct, just for the purpose of this function. */
+ typedef struct nm_str_item_s {
+ const char *name;
+ const char *value;
+ } nm_str_item_t;
+
+ nm_str_item_t fs_dev_alias[fs_info->ndevAlias];
+ nm_str_item_t fs_str_items[] = {
+ {.name = "mountpoint", .value = fs_info->mountpoint},
+ {.name = "name", .value = fs_info->name},
+ {.name = "fstype", .value = fs_info->fstype}};
+
+ for (int i = 0; i < fs_info->ndevAlias; ++i) {
+ fs_dev_alias[i].name = "devAlias";
+ fs_dev_alias[i].value = fs_info->devAlias[i];
+ }
+
+ init_notif(¬if, domain, NOTIF_OKAY, "File system information",
+ "file_system", NULL);
+ NM_ADD_STR_ITEMS(fs_str_items, STATIC_ARRAY_SIZE(fs_str_items));
+ NM_ADD_ITEM(plugin_notification_meta_add_unsigned_int, "ndevAlias",
+ fs_info->ndevAlias);
+ NM_ADD_STR_ITEMS(fs_dev_alias, fs_info->ndevAlias);
+
+ plugin_dispatch_notification(¬if);
+
+cleanup:
+ if (notif.meta)
+ plugin_notification_meta_free(notif.meta);
+ return ret;
+}
+
+#undef RETURN_ON_ERR
+#undef NM_ADD_STR_ITEMS
+
+static int get_fs_info(virDomainPtr domain) {
+ virDomainFSInfoPtr *fs_info = NULL;
+ int ret = 0;
+
+ int mount_points_cnt = virDomainGetFSInfo(domain, &fs_info, 0);
+ if (mount_points_cnt == -1) {
+ ERROR(PLUGIN_NAME " plugin: virDomainGetFSInfo failed: %d",
+ mount_points_cnt);
+ return mount_points_cnt;
+ }
+
+ for (int i = 0; i < mount_points_cnt; ++i) {
+ if (fs_info_notify(domain, fs_info[i]) != 0) {
+ ERROR(PLUGIN_NAME " plugin: failed to send file system notification "
+ "for mount point %s",
+ fs_info[i]->mountpoint);
+ ret = -1;
+ }
+ virDomainFSInfoFree(fs_info[i]);
+ }
+
+ sfree(fs_info);
+ return ret;
+}
+
+#endif /* HAVE_FS_INFO */
+
+#ifdef HAVE_JOB_STATS
+static void job_stats_submit(virDomainPtr domain, virTypedParameterPtr param) {
+ value_t vl = {0};
+
+ if (param->type == VIR_TYPED_PARAM_INT)
+ vl.derive = param->value.i;
+ else if (param->type == VIR_TYPED_PARAM_UINT)
+ vl.derive = param->value.ui;
+ else if (param->type == VIR_TYPED_PARAM_LLONG)
+ vl.derive = param->value.l;
+ else if (param->type == VIR_TYPED_PARAM_ULLONG)
+ vl.derive = param->value.ul;
+ else if (param->type == VIR_TYPED_PARAM_DOUBLE)
+ vl.derive = param->value.d;
+ else if (param->type == VIR_TYPED_PARAM_BOOLEAN)
+ vl.derive = param->value.b;
+ else if (param->type == VIR_TYPED_PARAM_STRING) {
+ submit_notif(domain, NOTIF_OKAY, param->value.s, "job_stats", param->field);
+ return;
+ } else {
+ ERROR(PLUGIN_NAME " plugin: unrecognized virTypedParameterType");
+ return;
+ }
+
+ submit(domain, "job_stats", param->field, &vl, 1);
+}
+
+static int get_job_stats(virDomainPtr domain) {
+ int ret = 0;
+ int job_type = 0;
+ int nparams = 0;
+ virTypedParameterPtr params = NULL;
+ int flags = (extra_stats & ex_stats_job_stats_completed)
+ ? VIR_DOMAIN_JOB_STATS_COMPLETED
+ : 0;
+
+ ret = virDomainGetJobStats(domain, &job_type, ¶ms, &nparams, flags);
+ if (ret != 0) {
+ ERROR(PLUGIN_NAME " plugin: virDomainGetJobStats failed: %d", ret);
+ return ret;
+ }
+
+ DEBUG(PLUGIN_NAME " plugin: job_type=%d nparams=%d", job_type, nparams);
+
+ for (int i = 0; i < nparams; ++i) {
+ DEBUG(PLUGIN_NAME " plugin: param[%d] field=%s type=%d", i, params[i].field,
+ params[i].type);
+ job_stats_submit(domain, ¶ms[i]);
+ }
+
+ virTypedParamsFree(params, nparams);
+ return ret;
+}
+#endif /* HAVE_JOB_STATS */
+
+static int get_domain_metrics(domain_t *domain) {
+ struct lv_info info;
+
+ if (!domain || !domain->ptr) {
+ ERROR(PLUGIN_NAME ": get_domain_metrics: NULL pointer");
+ return -1;
+ }
+
+ init_lv_info(&info);
+ int status = lv_domain_info(domain->ptr, &info);
+ if (status != 0) {
+ ERROR(PLUGIN_NAME " plugin: virDomainGetInfo failed with status %i.",
+ status);
+ return -1;
+ }
+
+ if (extra_stats & ex_stats_domain_state) {
+#ifdef HAVE_DOM_REASON
+ /* At this point we already know domain's state from virDomainGetInfo call,
+ * however it doesn't provide a reason for entering particular state.
+ * We need to get it from virDomainGetState.
+ */
+ GET_STATS(get_domain_state, "domain reason", domain->ptr);
+#endif
+ }
+
+ /* Gather remaining stats only for running domains */
+ if (info.di.state != VIR_DOMAIN_RUNNING)
+ return 0;
+
+ pcpu_submit(domain->ptr, &info);
+ cpu_submit(domain, info.di.cpuTime);
+
+ memory_submit(domain->ptr, (gauge_t)info.di.memory * 1024);
+
+ GET_STATS(get_vcpu_stats, "vcpu stats", domain->ptr, info.di.nrVirtCpu);
+ GET_STATS(get_memory_stats, "memory stats", domain->ptr);
+
+#ifdef HAVE_PERF_STATS
+ if (extra_stats & ex_stats_perf)
+ GET_STATS(get_perf_events, "performance monitoring events", domain->ptr);
+#endif
+
+#ifdef HAVE_FS_INFO
+ if (extra_stats & ex_stats_fs_info)
+ GET_STATS(get_fs_info, "file system info", domain->ptr);
+#endif
+
+#ifdef HAVE_DISK_ERR
+ if (extra_stats & ex_stats_disk_err)
+ GET_STATS(get_disk_err, "disk errors", domain->ptr);
+#endif
+
+#ifdef HAVE_JOB_STATS
+ if (extra_stats &
+ (ex_stats_job_stats_completed | ex_stats_job_stats_background))
+ GET_STATS(get_job_stats, "job stats", domain->ptr);
+#endif
+
+ /* Update cached virDomainInfo. It has to be done after cpu_submit */
+ memcpy(&domain->info, &info.di, sizeof(domain->info));
+
+ return 0;
+}
+
+static int get_if_dev_stats(struct interface_device *if_dev) {
+ virDomainInterfaceStatsStruct stats = {0};
+ char *display_name = NULL;
+
+ if (!if_dev) {
+ ERROR(PLUGIN_NAME " plugin: get_if_dev_stats: NULL pointer");
+ return -1;
+ }
+
+ switch (interface_format) {
+ case if_address:
+ display_name = if_dev->address;
+ break;
+ case if_number:
+ display_name = if_dev->number;
+ break;
+ case if_name:
+ default:
+ display_name = if_dev->path;
+ }
+
+ if (virDomainInterfaceStats(if_dev->dom, if_dev->path, &stats,
+ sizeof(stats)) != 0) {
+ ERROR(PLUGIN_NAME " plugin: virDomainInterfaceStats failed");
+ return -1;
+ }
+
+ if ((stats.rx_bytes != -1) && (stats.tx_bytes != -1))
+ submit_derive2("if_octets", (derive_t)stats.rx_bytes,
+ (derive_t)stats.tx_bytes, if_dev->dom, display_name);
+
+ if ((stats.rx_packets != -1) && (stats.tx_packets != -1))
+ submit_derive2("if_packets", (derive_t)stats.rx_packets,
+ (derive_t)stats.tx_packets, if_dev->dom, display_name);
+
+ if ((stats.rx_errs != -1) && (stats.tx_errs != -1))
+ submit_derive2("if_errors", (derive_t)stats.rx_errs,
+ (derive_t)stats.tx_errs, if_dev->dom, display_name);
+
+ if ((stats.rx_drop != -1) && (stats.tx_drop != -1))
+ submit_derive2("if_dropped", (derive_t)stats.rx_drop,
+ (derive_t)stats.tx_drop, if_dev->dom, display_name);
+ return 0;
+}
+
+static int domain_lifecycle_event_cb(__attribute__((unused)) virConnectPtr conn,
+ virDomainPtr dom, int event, int detail,
+ __attribute__((unused)) void *opaque) {
+ int domain_state = map_domain_event_to_state(event);
+ int domain_reason = 0; /* 0 means UNKNOWN reason for any state */
+#ifdef HAVE_DOM_REASON
+ domain_reason = map_domain_event_detail_to_reason(event, detail);
+#endif
+ domain_state_submit_notif(dom, domain_state, domain_reason);
+
+ return 0;
+}
+
+static int register_event_impl(void) {
+ if (virEventRegisterDefaultImpl() < 0) {
+ virErrorPtr err = virGetLastError();
+ ERROR(PLUGIN_NAME
+ " plugin: error while event implementation registering: %s",
+ err && err->message ? err->message : "Unknown error");
+ return -1;
+ }
+
+ return 0;
+}
+
+static void virt_notif_thread_set_active(virt_notif_thread_t *thread_data,
+ const bool active) {
+ assert(thread_data != NULL);
+ pthread_mutex_lock(&thread_data->active_mutex);
+ thread_data->is_active = active;
+ pthread_mutex_unlock(&thread_data->active_mutex);
+}
+
+static bool virt_notif_thread_is_active(virt_notif_thread_t *thread_data) {
+ bool active = false;
+
+ assert(thread_data != NULL);
+ pthread_mutex_lock(&thread_data->active_mutex);
+ active = thread_data->is_active;
+ pthread_mutex_unlock(&thread_data->active_mutex);
+
+ return active;
+}
+
+/* worker function running default event implementation */
+static void *event_loop_worker(void *arg) {
+ virt_notif_thread_t *thread_data = (virt_notif_thread_t *)arg;
+
+ while (virt_notif_thread_is_active(thread_data)) {
+ if (virEventRunDefaultImpl() < 0) {
+ virErrorPtr err = virGetLastError();
+ ERROR(PLUGIN_NAME " plugin: failed to run event loop: %s\n",
+ err && err->message ? err->message : "Unknown error");
+ }
+ }
+
+ return NULL;
+}
+
+static int virt_notif_thread_init(virt_notif_thread_t *thread_data) {
+ int ret;
+
+ assert(thread_data != NULL);
+ ret = pthread_mutex_init(&thread_data->active_mutex, NULL);
+ if (ret != 0) {
+ ERROR(PLUGIN_NAME ": Failed to initialize mutex, err %u", ret);
+ return ret;
+ }
+
+ /**
+ * '0' and positive integers are meaningful ID's, therefore setting
+ * domain_event_cb_id to '-1'
+ */
+ thread_data->domain_event_cb_id = -1;
+ thread_data->is_active = 0;
+
+ return 0;
+}
+
+/* register domain event callback and start event loop thread */
+static int start_event_loop(virt_notif_thread_t *thread_data) {
+ assert(thread_data != NULL);
+ thread_data->domain_event_cb_id = virConnectDomainEventRegisterAny(
+ conn, NULL, VIR_DOMAIN_EVENT_ID_LIFECYCLE,
+ VIR_DOMAIN_EVENT_CALLBACK(domain_lifecycle_event_cb), NULL, NULL);
+ if (thread_data->domain_event_cb_id == -1) {
+ ERROR(PLUGIN_NAME " plugin: error while callback registering");
+ return -1;
+ }
+
+ virt_notif_thread_set_active(thread_data, 1);
+ if (pthread_create(&thread_data->event_loop_tid, NULL, event_loop_worker,
+ thread_data)) {
+ ERROR(PLUGIN_NAME " plugin: failed event loop thread creation");
+ virConnectDomainEventDeregisterAny(conn, thread_data->domain_event_cb_id);
+ return -1;
+ }
+
+ return 0;
+}
+
+/* stop event loop thread and deregister callback */
+static void stop_event_loop(virt_notif_thread_t *thread_data) {
+ /* stopping loop and de-registering event handler*/
+ virt_notif_thread_set_active(thread_data, 0);
+ if (conn != NULL && thread_data->domain_event_cb_id != -1)
+ virConnectDomainEventDeregisterAny(conn, thread_data->domain_event_cb_id);
+
+ if (pthread_join(notif_thread.event_loop_tid, NULL) != 0)
+ ERROR(PLUGIN_NAME " plugin: stopping notification thread failed");
+}
+
+static int persistent_domains_state_notification(void) {
+ int status = 0;
+ int n;
+#ifdef HAVE_LIST_ALL_DOMAINS
+ virDomainPtr *domains = NULL;
+ n = virConnectListAllDomains(conn, &domains,
+ VIR_CONNECT_LIST_DOMAINS_PERSISTENT);
+ if (n < 0) {
+ VIRT_ERROR(conn, "reading list of persistent domains");
+ status = -1;
+ } else {
+ DEBUG(PLUGIN_NAME " plugin: getting state of %i persistent domains", n);
+ /* Fetch each persistent domain's state and notify it */
+ int n_notified = n;
+ for (int i = 0; i < n; ++i) {
+ status = get_domain_state_notify(domains[i]);
+ if (status != 0) {
+ n_notified--;
+ ERROR(PLUGIN_NAME " plugin: could not notify state of domain %s",
+ virDomainGetName(domains[i]));
+ }
+ virDomainFree(domains[i]);
+ }
- return 0;
+ sfree(domains);
+ DEBUG(PLUGIN_NAME " plugin: notified state of %i persistent domains",
+ n_notified);
}
-
- if (strcasecmp(key, "PluginInstanceFormat") == 0) {
- char *value_copy;
- char *fields[PLGINST_MAX_FIELDS];
- int n;
-
- value_copy = strdup(value);
- if (value_copy == NULL) {
- ERROR(PLUGIN_NAME " plugin: strdup failed.");
+#else
+ n = virConnectNumOfDomains(conn);
+ if (n > 0) {
+ int *domids;
+ /* Get list of domains. */
+ domids = calloc(n, sizeof(*domids));
+ if (domids == NULL) {
+ ERROR(PLUGIN_NAME " plugin: calloc failed.");
return -1;
}
-
- n = strsplit(value_copy, fields, PLGINST_MAX_FIELDS);
- if (n < 1) {
- sfree(value_copy);
- ERROR(PLUGIN_NAME " plugin: PluginInstanceFormat: no fields");
+ n = virConnectListDomains(conn, domids, n);
+ if (n < 0) {
+ VIRT_ERROR(conn, "reading list of domains");
+ sfree(domids);
return -1;
}
-
+ /* Fetch info of each active domain and notify it */
for (int i = 0; i < n; ++i) {
- if (strcasecmp(fields[i], "none") == 0) {
- plugin_instance_format[i] = plginst_none;
- break;
- } else if (strcasecmp(fields[i], "name") == 0)
- plugin_instance_format[i] = plginst_name;
- else if (strcasecmp(fields[i], "uuid") == 0)
- plugin_instance_format[i] = plginst_uuid;
- else {
- ERROR(PLUGIN_NAME " plugin: unknown PluginInstanceFormat field: %s",
- fields[i]);
- sfree(value_copy);
- return -1;
+ virDomainInfo info;
+ virDomainPtr dom = NULL;
+ dom = virDomainLookupByID(conn, domids[i]);
+ if (dom == NULL) {
+ VIRT_ERROR(conn, "virDomainLookupByID");
+ /* Could be that the domain went away -- ignore it anyway. */
+ continue;
}
+ status = virDomainGetInfo(dom, &info);
+ if (status == 0)
+ /* virDomainGetState is not available. Submit 0, which corresponds to
+ * unknown reason. */
+ domain_state_submit_notif(dom, info.state, 0);
+ else
+ ERROR(PLUGIN_NAME " plugin: virDomainGetInfo failed with status %i.",
+ status);
+
+ virDomainFree(dom);
}
- sfree(value_copy);
+ sfree(domids);
+ }
+#endif
- for (int i = n; i < PLGINST_MAX_FIELDS; ++i)
- plugin_instance_format[i] = plginst_none;
+ return status;
+}
- return 0;
- }
+static int lv_read(user_data_t *ud) {
+ time_t t;
+ struct lv_read_instance *inst = NULL;
+ struct lv_read_state *state = NULL;
- if (strcasecmp(key, "InterfaceFormat") == 0) {
- if (strcasecmp(value, "name") == 0)
- interface_format = if_name;
- else if (strcasecmp(value, "address") == 0)
- interface_format = if_address;
- else if (strcasecmp(value, "number") == 0)
- interface_format = if_number;
- else {
- ERROR(PLUGIN_NAME " plugin: unknown InterfaceFormat: %s", value);
- return -1;
- }
- return 0;
+ if (ud->data == NULL) {
+ ERROR(PLUGIN_NAME " plugin: NULL userdata");
+ return -1;
}
- /* Unrecognised option. */
- return -1;
-}
+ inst = ud->data;
+ state = &inst->read_state;
-static int lv_read(void) {
- time_t t;
+ bool reconnect = conn == NULL ? true : false;
+ /* event implementation must be registered before connection is opened */
+ if (inst->id == 0) {
+ if (!persistent_notification && reconnect)
+ if (register_event_impl() != 0)
+ return -1;
- if (conn == NULL) {
- /* `conn_string == NULL' is acceptable. */
- conn = virConnectOpenReadOnly(conn_string);
- if (conn == NULL) {
- c_complain(LOG_ERR, &conn_complain,
- PLUGIN_NAME " plugin: Unable to connect: "
- "virConnectOpenReadOnly failed.");
+ if (lv_connect() < 0)
return -1;
- }
+
+ if (!persistent_notification && reconnect && conn != NULL)
+ if (start_event_loop(¬if_thread) != 0)
+ return -1;
}
- c_release(LOG_NOTICE, &conn_complain,
- PLUGIN_NAME " plugin: Connection established.");
time(&t);
/* Need to refresh domain or device lists? */
if ((last_refresh == (time_t)0) ||
((interval > 0) && ((last_refresh + interval) <= t))) {
- if (refresh_lists() != 0) {
- if (conn != NULL)
- virConnectClose(conn);
- conn = NULL;
+ if (refresh_lists(inst) != 0) {
+ if (inst->id == 0) {
+ if (!persistent_notification)
+ stop_event_loop(¬if_thread);
+ lv_disconnect();
+ }
return -1;
}
last_refresh = t;
}
-#if 0
- for (int i = 0; i < nr_domains; ++i)
- fprintf (stderr, "domain %s\n", virDomainGetName (domains[i]));
- for (int i = 0; i < nr_block_devices; ++i)
- fprintf (stderr, "block device %d %s:%s\n",
- i, virDomainGetName (block_devices[i].dom),
- block_devices[i].path);
- for (int i = 0; i < nr_interface_devices; ++i)
- fprintf (stderr, "interface device %d %s:%s\n",
- i, virDomainGetName (interface_devices[i].dom),
- interface_devices[i].path);
+ /* persistent domains state notifications are handled by instance 0 */
+ if (inst->id == 0 && persistent_notification) {
+ int status = persistent_domains_state_notification();
+ if (status != 0)
+ DEBUG(PLUGIN_NAME " plugin: persistent_domains_state_notifications "
+ "returned with status %i",
+ status);
+ }
+
+#if COLLECT_DEBUG
+ for (int i = 0; i < state->nr_domains; ++i)
+ DEBUG(PLUGIN_NAME " plugin: domain %s",
+ virDomainGetName(state->domains[i].ptr));
+ for (int i = 0; i < state->nr_block_devices; ++i)
+ DEBUG(PLUGIN_NAME " plugin: block device %d %s:%s", i,
+ virDomainGetName(state->block_devices[i].dom),
+ state->block_devices[i].path);
+ for (int i = 0; i < state->nr_interface_devices; ++i)
+ DEBUG(PLUGIN_NAME " plugin: interface device %d %s:%s", i,
+ virDomainGetName(state->interface_devices[i].dom),
+ state->interface_devices[i].path);
#endif
- /* Get CPU usage, memory, VCPU usage for each domain. */
- for (int i = 0; i < nr_domains; ++i) {
- virDomainInfo info;
- virVcpuInfoPtr vinfo = NULL;
- virDomainMemoryStatPtr minfo = NULL;
- int status;
+ /* Get domains' metrics */
+ for (int i = 0; i < state->nr_domains; ++i) {
+ domain_t *dom = &state->domains[i];
+ int status = 0;
+ if (dom->active)
+ status = get_domain_metrics(dom);
+#ifdef HAVE_DOM_REASON
+ else
+ status = get_domain_state(dom->ptr);
+#endif
- status = virDomainGetInfo(domains[i], &info);
- if (status != 0) {
- ERROR(PLUGIN_NAME " plugin: virDomainGetInfo failed with status %i.",
- status);
- continue;
- }
+ if (status != 0)
+ ERROR(PLUGIN_NAME " failed to get metrics for domain=%s",
+ virDomainGetName(dom->ptr));
+ }
- if (info.state != VIR_DOMAIN_RUNNING) {
- /* only gather stats for running domains */
- continue;
- }
+ /* Get block device stats for each domain. */
+ for (int i = 0; i < state->nr_block_devices; ++i) {
+ int status = get_block_stats(&state->block_devices[i]);
+ if (status != 0)
+ ERROR(PLUGIN_NAME
+ " failed to get stats for block device (%s) in domain %s",
+ state->block_devices[i].path,
+ virDomainGetName(state->domains[i].ptr));
+ }
- cpu_submit(info.cpuTime, domains[i], "virt_cpu_total");
- memory_submit((gauge_t)info.memory * 1024, domains[i]);
+ /* Get interface stats for each domain. */
+ for (int i = 0; i < state->nr_interface_devices; ++i) {
+ int status = get_if_dev_stats(&state->interface_devices[i]);
+ if (status != 0)
+ ERROR(PLUGIN_NAME
+ " failed to get interface stats for device (%s) in domain %s",
+ state->interface_devices[i].path,
+ virDomainGetName(state->interface_devices[i].dom));
+ }
- vinfo = malloc(info.nrVirtCpu * sizeof(vinfo[0]));
- if (vinfo == NULL) {
- ERROR(PLUGIN_NAME " plugin: malloc failed.");
- continue;
- }
+ return 0;
+}
- status = virDomainGetVcpus(domains[i], vinfo, info.nrVirtCpu,
- /* cpu map = */ NULL, /* cpu map length = */ 0);
- if (status < 0) {
- ERROR(PLUGIN_NAME " plugin: virDomainGetVcpus failed with status %i.",
- status);
- sfree(vinfo);
- continue;
- }
+static int lv_init_instance(size_t i, plugin_read_cb callback) {
+ struct lv_user_data *lv_ud = &(lv_read_user_data[i]);
+ struct lv_read_instance *inst = &(lv_ud->inst);
- for (int j = 0; j < info.nrVirtCpu; ++j)
- vcpu_submit(vinfo[j].cpuTime, domains[i], vinfo[j].number, "virt_vcpu");
+ memset(lv_ud, 0, sizeof(*lv_ud));
- sfree(vinfo);
+ snprintf(inst->tag, sizeof(inst->tag), "%s-%" PRIsz, PLUGIN_NAME, i);
+ inst->id = i;
- minfo =
- malloc(VIR_DOMAIN_MEMORY_STAT_NR * sizeof(virDomainMemoryStatStruct));
- if (minfo == NULL) {
- ERROR("virt plugin: malloc failed.");
- continue;
- }
+ user_data_t *ud = &(lv_ud->ud);
+ ud->data = inst;
+ ud->free_func = NULL;
- status =
- virDomainMemoryStats(domains[i], minfo, VIR_DOMAIN_MEMORY_STAT_NR, 0);
+ INFO(PLUGIN_NAME " plugin: reader %s initialized", inst->tag);
- if (status < 0) {
- ERROR("virt plugin: virDomainMemoryStats failed with status %i.", status);
- sfree(minfo);
- continue;
- }
+ return plugin_register_complex_read(NULL, inst->tag, callback, 0, ud);
+}
- for (int j = 0; j < status; j++) {
- memory_stats_submit((gauge_t)minfo[j].val * 1024, domains[i],
- minfo[j].tag);
- }
+static void lv_clean_read_state(struct lv_read_state *state) {
+ free_block_devices(state);
+ free_interface_devices(state);
+ free_domains(state);
+}
- sfree(minfo);
- }
+static void lv_fini_instance(size_t i) {
+ struct lv_read_instance *inst = &(lv_read_user_data[i].inst);
+ struct lv_read_state *state = &(inst->read_state);
- /* Get block device stats for each domain. */
- for (int i = 0; i < nr_block_devices; ++i) {
- struct _virDomainBlockStats stats;
+ lv_clean_read_state(state);
- if (virDomainBlockStats(block_devices[i].dom, block_devices[i].path, &stats,
- sizeof stats) != 0)
- continue;
+ INFO(PLUGIN_NAME " plugin: reader %s finalized", inst->tag);
+}
- char *type_instance = NULL;
- if (blockdevice_format_basename && blockdevice_format == source)
- type_instance = strdup(basename(block_devices[i].path));
- else
- type_instance = strdup(block_devices[i].path);
+static int lv_init(void) {
+ if (virInitialize() != 0)
+ return -1;
- if ((stats.rd_req != -1) && (stats.wr_req != -1))
- submit_derive2("disk_ops", (derive_t)stats.rd_req, (derive_t)stats.wr_req,
- block_devices[i].dom, type_instance);
+ /* event implementation must be registered before connection is opened */
+ if (!persistent_notification)
+ if (register_event_impl() != 0)
+ return -1;
- if ((stats.rd_bytes != -1) && (stats.wr_bytes != -1))
- submit_derive2("disk_octets", (derive_t)stats.rd_bytes,
- (derive_t)stats.wr_bytes, block_devices[i].dom,
- type_instance);
+ if (lv_connect() != 0)
+ return -1;
- sfree(type_instance);
- } /* for (nr_block_devices) */
+ DEBUG(PLUGIN_NAME " plugin: starting event loop");
- /* Get interface stats for each domain. */
- for (int i = 0; i < nr_interface_devices; ++i) {
- struct _virDomainInterfaceStats stats;
- char *display_name = NULL;
+ if (!persistent_notification) {
+ virt_notif_thread_init(¬if_thread);
+ if (start_event_loop(¬if_thread) != 0)
+ return -1;
+ }
- switch (interface_format) {
- case if_address:
- display_name = interface_devices[i].address;
- break;
- case if_number:
- display_name = interface_devices[i].number;
- break;
- case if_name:
- default:
- display_name = interface_devices[i].path;
- }
+ DEBUG(PLUGIN_NAME " plugin: starting %i instances", nr_instances);
- if (virDomainInterfaceStats(interface_devices[i].dom,
- interface_devices[i].path, &stats,
- sizeof stats) != 0)
- continue;
+ for (int i = 0; i < nr_instances; ++i)
+ if (lv_init_instance(i, lv_read) != 0)
+ return -1;
- if ((stats.rx_bytes != -1) && (stats.tx_bytes != -1))
- submit_derive2("if_octets", (derive_t)stats.rx_bytes,
- (derive_t)stats.tx_bytes, interface_devices[i].dom,
- display_name);
+ return 0;
+}
+
+/*
+ * returns 0 on success and <0 on error
+ */
+static int lv_domain_get_tag(xmlXPathContextPtr xpath_ctx, const char *dom_name,
+ char *dom_tag) {
+ char xpath_str[BUFFER_MAX_LEN] = {'\0'};
+ xmlXPathObjectPtr xpath_obj = NULL;
+ xmlNodePtr xml_node = NULL;
+ int ret = -1;
+ int err;
+
+ err = xmlXPathRegisterNs(xpath_ctx,
+ (const xmlChar *)METADATA_VM_PARTITION_PREFIX,
+ (const xmlChar *)METADATA_VM_PARTITION_URI);
+ if (err) {
+ ERROR(PLUGIN_NAME " plugin: xmlXpathRegisterNs(%s, %s) failed on domain %s",
+ METADATA_VM_PARTITION_PREFIX, METADATA_VM_PARTITION_URI, dom_name);
+ goto done;
+ }
+
+ snprintf(xpath_str, sizeof(xpath_str), "/domain/metadata/%s:%s/text()",
+ METADATA_VM_PARTITION_PREFIX, METADATA_VM_PARTITION_ELEMENT);
+ xpath_obj = xmlXPathEvalExpression((xmlChar *)xpath_str, xpath_ctx);
+ if (xpath_obj == NULL) {
+ ERROR(PLUGIN_NAME " plugin: xmlXPathEval(%s) failed on domain %s",
+ xpath_str, dom_name);
+ goto done;
+ }
+
+ if (xpath_obj->type != XPATH_NODESET) {
+ ERROR(PLUGIN_NAME " plugin: xmlXPathEval(%s) unexpected return type %d "
+ "(wanted %d) on domain %s",
+ xpath_str, xpath_obj->type, XPATH_NODESET, dom_name);
+ goto done;
+ }
+
+ /*
+ * from now on there is no real error, it's ok if a domain
+ * doesn't have the metadata partition tag.
+ */
+ ret = 0;
+ if (xpath_obj->nodesetval == NULL || xpath_obj->nodesetval->nodeNr != 1) {
+ DEBUG(PLUGIN_NAME " plugin: xmlXPathEval(%s) return nodeset size=%i "
+ "expected=1 on domain %s",
+ xpath_str,
+ (xpath_obj->nodesetval == NULL) ? 0 : xpath_obj->nodesetval->nodeNr,
+ dom_name);
+ } else {
+ xml_node = xpath_obj->nodesetval->nodeTab[0];
+ sstrncpy(dom_tag, (const char *)xml_node->content, PARTITION_TAG_MAX_LEN);
+ }
+
+done:
+ /* deregister to clean up */
+ err = xmlXPathRegisterNs(xpath_ctx,
+ (const xmlChar *)METADATA_VM_PARTITION_PREFIX, NULL);
+ if (err) {
+ /* we can't really recover here */
+ ERROR(PLUGIN_NAME
+ " plugin: deregistration of namespace %s failed for domain %s",
+ METADATA_VM_PARTITION_PREFIX, dom_name);
+ }
+ if (xpath_obj)
+ xmlXPathFreeObject(xpath_obj);
+
+ return ret;
+}
- if ((stats.rx_packets != -1) && (stats.tx_packets != -1))
- submit_derive2("if_packets", (derive_t)stats.rx_packets,
- (derive_t)stats.tx_packets, interface_devices[i].dom,
- display_name);
+static int is_known_tag(const char *dom_tag) {
+ for (int i = 0; i < nr_instances; ++i)
+ if (!strcmp(dom_tag, lv_read_user_data[i].inst.tag))
+ return 1;
+ return 0;
+}
- if ((stats.rx_errs != -1) && (stats.tx_errs != -1))
- submit_derive2("if_errors", (derive_t)stats.rx_errs,
- (derive_t)stats.tx_errs, interface_devices[i].dom,
- display_name);
+static int lv_instance_include_domain(struct lv_read_instance *inst,
+ const char *dom_name,
+ const char *dom_tag) {
+ if ((dom_tag[0] != '\0') && (strcmp(dom_tag, inst->tag) == 0))
+ return 1;
- if ((stats.rx_drop != -1) && (stats.tx_drop != -1))
- submit_derive2("if_dropped", (derive_t)stats.rx_drop,
- (derive_t)stats.tx_drop, interface_devices[i].dom,
- display_name);
- } /* for (nr_interface_devices) */
+ /* instance#0 will always be there, so it is in charge of extra duties */
+ if (inst->id == 0) {
+ if (dom_tag[0] == '\0' || !is_known_tag(dom_tag)) {
+ DEBUG(PLUGIN_NAME " plugin#%s: refreshing domain %s "
+ "with unknown tag '%s'",
+ inst->tag, dom_name, dom_tag);
+ return 1;
+ }
+ }
return 0;
}
-static int refresh_lists(void) {
+static int refresh_lists(struct lv_read_instance *inst) {
+ struct lv_read_state *state = &inst->read_state;
int n;
+#ifndef HAVE_LIST_ALL_DOMAINS
n = virConnectNumOfDomains(conn);
if (n < 0) {
VIRT_ERROR(conn, "reading number of domains");
return -1;
}
+#endif
- if (n > 0) {
- int *domids;
+ lv_clean_read_state(state);
- /* Get list of domains. */
- domids = malloc(sizeof(*domids) * n);
- if (domids == NULL) {
+#ifndef HAVE_LIST_ALL_DOMAINS
+ if (n == 0)
+ goto end;
+#endif
+
+#ifdef HAVE_LIST_ALL_DOMAINS
+ virDomainPtr *domains, *domains_inactive;
+ int m = virConnectListAllDomains(conn, &domains_inactive,
+ VIR_CONNECT_LIST_DOMAINS_INACTIVE);
+ n = virConnectListAllDomains(conn, &domains, VIR_CONNECT_LIST_DOMAINS_ACTIVE);
+#else
+ int *domids;
+
+ /* Get list of domains. */
+ domids = calloc(n, sizeof(*domids));
+ if (domids == NULL) {
+ ERROR(PLUGIN_NAME " plugin: calloc failed.");
+ return -1;
+ }
+
+ n = virConnectListDomains(conn, domids, n);
+#endif
+
+ if (n < 0) {
+ VIRT_ERROR(conn, "reading list of domains");
+#ifndef HAVE_LIST_ALL_DOMAINS
+ sfree(domids);
+#else
+ for (int i = 0; i < m; ++i)
+ virDomainFree(domains_inactive[i]);
+ sfree(domains_inactive);
+#endif
+ return -1;
+ }
+
+#ifdef HAVE_LIST_ALL_DOMAINS
+ for (int i = 0; i < m; ++i)
+ if (add_domain(state, domains_inactive[i], 0) < 0) {
ERROR(PLUGIN_NAME " plugin: malloc failed.");
- return -1;
+ virDomainFree(domains_inactive[i]);
+ domains_inactive[i] = NULL;
+ continue;
}
+#endif
- n = virConnectListDomains(conn, domids, n);
- if (n < 0) {
- VIRT_ERROR(conn, "reading list of domains");
- sfree(domids);
- return -1;
+ /* Fetch each domain and add it to the list, unless ignore. */
+ for (int i = 0; i < n; ++i) {
+ const char *name;
+ char *xml = NULL;
+ xmlDocPtr xml_doc = NULL;
+ xmlXPathContextPtr xpath_ctx = NULL;
+ xmlXPathObjectPtr xpath_obj = NULL;
+ char tag[PARTITION_TAG_MAX_LEN] = {'\0'};
+ virDomainInfo info;
+ int status;
+
+#ifdef HAVE_LIST_ALL_DOMAINS
+ virDomainPtr dom = domains[i];
+#else
+ virDomainPtr dom = NULL;
+ dom = virDomainLookupByID(conn, domids[i]);
+ if (dom == NULL) {
+ VIRT_ERROR(conn, "virDomainLookupByID");
+ /* Could be that the domain went away -- ignore it anyway. */
+ continue;
}
+#endif
- free_block_devices();
- free_interface_devices();
- free_domains();
+ if (add_domain(state, dom, 1) < 0) {
+ /*
+ * When domain is already tracked, then there is
+ * no problem with memory handling (will be freed
+ * with the rest of domains cached data)
+ * But in case of error like this (error occurred
+ * before adding domain to track) we have to take
+ * care it ourselves and call virDomainFree
+ */
+ ERROR(PLUGIN_NAME " plugin: malloc failed.");
+ virDomainFree(dom);
+ goto cont;
+ }
- /* Fetch each domain and add it to the list, unless ignore. */
- for (int i = 0; i < n; ++i) {
- virDomainPtr dom = NULL;
- const char *name;
- char *xml = NULL;
- xmlDocPtr xml_doc = NULL;
- xmlXPathContextPtr xpath_ctx = NULL;
- xmlXPathObjectPtr xpath_obj = NULL;
+ name = virDomainGetName(dom);
+ if (name == NULL) {
+ VIRT_ERROR(conn, "virDomainGetName");
+ goto cont;
+ }
- dom = virDomainLookupByID(conn, domids[i]);
- if (dom == NULL) {
- VIRT_ERROR(conn, "virDomainLookupByID");
- /* Could be that the domain went away -- ignore it anyway. */
- continue;
- }
+ status = virDomainGetInfo(dom, &info);
+ if (status != 0) {
+ ERROR(PLUGIN_NAME " plugin: virDomainGetInfo failed with status %i.",
+ status);
+ continue;
+ }
- name = virDomainGetName(dom);
- if (name == NULL) {
- VIRT_ERROR(conn, "virDomainGetName");
- goto cont;
- }
+ if (info.state != VIR_DOMAIN_RUNNING) {
+ DEBUG(PLUGIN_NAME " plugin: skipping inactive domain %s", name);
+ continue;
+ }
- if (il_domains && ignorelist_match(il_domains, name) != 0)
- goto cont;
+ if (il_domains && ignorelist_match(il_domains, name) != 0)
+ goto cont;
- if (add_domain(dom) < 0) {
- ERROR(PLUGIN_NAME " plugin: malloc failed.");
- goto cont;
- }
+ /* Get a list of devices for this domain. */
+ xml = virDomainGetXMLDesc(dom, 0);
+ if (!xml) {
+ VIRT_ERROR(conn, "virDomainGetXMLDesc");
+ goto cont;
+ }
- /* Get a list of devices for this domain. */
- xml = virDomainGetXMLDesc(dom, 0);
- if (!xml) {
- VIRT_ERROR(conn, "virDomainGetXMLDesc");
- goto cont;
- }
+ /* Yuck, XML. Parse out the devices. */
+ xml_doc = xmlReadDoc((xmlChar *)xml, NULL, NULL, XML_PARSE_NONET);
+ if (xml_doc == NULL) {
+ VIRT_ERROR(conn, "xmlReadDoc");
+ goto cont;
+ }
- /* Yuck, XML. Parse out the devices. */
- xml_doc = xmlReadDoc((xmlChar *)xml, NULL, NULL, XML_PARSE_NONET);
- if (xml_doc == NULL) {
- VIRT_ERROR(conn, "xmlReadDoc");
- goto cont;
- }
+ xpath_ctx = xmlXPathNewContext(xml_doc);
- xpath_ctx = xmlXPathNewContext(xml_doc);
+ if (lv_domain_get_tag(xpath_ctx, name, tag) < 0) {
+ ERROR(PLUGIN_NAME " plugin: lv_domain_get_tag failed.");
+ goto cont;
+ }
- /* Block devices. */
- char *bd_xmlpath = "/domain/devices/disk/target[@dev]";
- if (blockdevice_format == source)
- bd_xmlpath = "/domain/devices/disk/source[@dev]";
- xpath_obj = xmlXPathEval((xmlChar *)bd_xmlpath, xpath_ctx);
+ if (!lv_instance_include_domain(inst, name, tag))
+ goto cont;
- if (xpath_obj == NULL || xpath_obj->type != XPATH_NODESET ||
- xpath_obj->nodesetval == NULL)
- goto cont;
+ /* Block devices. */
+ const char *bd_xmlpath = "/domain/devices/disk/target[@dev]";
+ if (blockdevice_format == source)
+ bd_xmlpath = "/domain/devices/disk/source[@dev]";
+ xpath_obj = xmlXPathEval((const xmlChar *)bd_xmlpath, xpath_ctx);
- for (int j = 0; j < xpath_obj->nodesetval->nodeNr; ++j) {
- xmlNodePtr node;
- char *path = NULL;
+ if (xpath_obj == NULL || xpath_obj->type != XPATH_NODESET ||
+ xpath_obj->nodesetval == NULL)
+ goto cont;
- node = xpath_obj->nodesetval->nodeTab[j];
- if (!node)
- continue;
- path = (char *)xmlGetProp(node, (xmlChar *)"dev");
- if (!path)
- continue;
+ for (int j = 0; j < xpath_obj->nodesetval->nodeNr; ++j) {
+ xmlNodePtr node;
+ char *path = NULL;
+
+ node = xpath_obj->nodesetval->nodeTab[j];
+ if (!node)
+ continue;
+ path = (char *)xmlGetProp(node, (xmlChar *)"dev");
+ if (!path)
+ continue;
- if (il_block_devices &&
- ignore_device_match(il_block_devices, name, path) != 0)
- goto cont2;
+ if (il_block_devices &&
+ ignore_device_match(il_block_devices, name, path) != 0)
+ goto cont2;
- add_block_device(dom, path);
- cont2:
- if (path)
- xmlFree(path);
- }
- xmlXPathFreeObject(xpath_obj);
+ add_block_device(state, dom, path);
+ cont2:
+ if (path)
+ xmlFree(path);
+ }
+ xmlXPathFreeObject(xpath_obj);
+
+ /* Network interfaces. */
+ xpath_obj = xmlXPathEval(
+ (xmlChar *)"/domain/devices/interface[target[@dev]]", xpath_ctx);
+ if (xpath_obj == NULL || xpath_obj->type != XPATH_NODESET ||
+ xpath_obj->nodesetval == NULL)
+ goto cont;
- /* Network interfaces. */
- xpath_obj = xmlXPathEval(
- (xmlChar *)"/domain/devices/interface[target[@dev]]", xpath_ctx);
- if (xpath_obj == NULL || xpath_obj->type != XPATH_NODESET ||
- xpath_obj->nodesetval == NULL)
- goto cont;
+ xmlNodeSetPtr xml_interfaces = xpath_obj->nodesetval;
- xmlNodeSetPtr xml_interfaces = xpath_obj->nodesetval;
+ for (int j = 0; j < xml_interfaces->nodeNr; ++j) {
+ char *path = NULL;
+ char *address = NULL;
+ xmlNodePtr xml_interface;
- for (int j = 0; j < xml_interfaces->nodeNr; ++j) {
- char *path = NULL;
- char *address = NULL;
- xmlNodePtr xml_interface;
+ xml_interface = xml_interfaces->nodeTab[j];
+ if (!xml_interface)
+ continue;
- xml_interface = xml_interfaces->nodeTab[j];
- if (!xml_interface)
+ for (xmlNodePtr child = xml_interface->children; child;
+ child = child->next) {
+ if (child->type != XML_ELEMENT_NODE)
continue;
- for (xmlNodePtr child = xml_interface->children; child;
- child = child->next) {
- if (child->type != XML_ELEMENT_NODE)
+ if (xmlStrEqual(child->name, (const xmlChar *)"target")) {
+ path = (char *)xmlGetProp(child, (const xmlChar *)"dev");
+ if (!path)
+ continue;
+ } else if (xmlStrEqual(child->name, (const xmlChar *)"mac")) {
+ address = (char *)xmlGetProp(child, (const xmlChar *)"address");
+ if (!address)
continue;
-
- if (xmlStrEqual(child->name, (const xmlChar *)"target")) {
- path = (char *)xmlGetProp(child, (const xmlChar *)"dev");
- if (!path)
- continue;
- } else if (xmlStrEqual(child->name, (const xmlChar *)"mac")) {
- address = (char *)xmlGetProp(child, (const xmlChar *)"address");
- if (!address)
- continue;
- }
}
-
- if (il_interface_devices &&
- (ignore_device_match(il_interface_devices, name, path) != 0 ||
- ignore_device_match(il_interface_devices, name, address) != 0))
- goto cont3;
-
- add_interface_device(dom, path, address, j + 1);
- cont3:
- if (path)
- xmlFree(path);
- if (address)
- xmlFree(address);
}
- cont:
- if (xpath_obj)
- xmlXPathFreeObject(xpath_obj);
- if (xpath_ctx)
- xmlXPathFreeContext(xpath_ctx);
- if (xml_doc)
- xmlFreeDoc(xml_doc);
- sfree(xml);
+ if (il_interface_devices &&
+ (ignore_device_match(il_interface_devices, name, path) != 0 ||
+ ignore_device_match(il_interface_devices, name, address) != 0))
+ goto cont3;
+
+ add_interface_device(state, dom, path, address, j + 1);
+ cont3:
+ if (path)
+ xmlFree(path);
+ if (address)
+ xmlFree(address);
}
- sfree(domids);
+ cont:
+ if (xpath_obj)
+ xmlXPathFreeObject(xpath_obj);
+ if (xpath_ctx)
+ xmlXPathFreeContext(xpath_ctx);
+ if (xml_doc)
+ xmlFreeDoc(xml_doc);
+ sfree(xml);
}
+#ifdef HAVE_LIST_ALL_DOMAINS
+ /* NOTE: domains_active and domains_inactive data will be cleared during
+ refresh of all domains (inside lv_clean_read_state function) so we need
+ to free here only allocated arrays */
+ sfree(domains);
+ sfree(domains_inactive);
+#else
+ sfree(domids);
+
+end:
+#endif
+
+ DEBUG(PLUGIN_NAME " plugin#%s: refreshing"
+ " domains=%i block_devices=%i iface_devices=%i",
+ inst->tag, state->nr_domains, state->nr_block_devices,
+ state->nr_interface_devices);
+
return 0;
}
-static void free_domains(void) {
- if (domains) {
- for (int i = 0; i < nr_domains; ++i)
- virDomainFree(domains[i]);
- sfree(domains);
+static void free_domains(struct lv_read_state *state) {
+ if (state->domains) {
+ for (int i = 0; i < state->nr_domains; ++i)
+ virDomainFree(state->domains[i].ptr);
+ sfree(state->domains);
}
- domains = NULL;
- nr_domains = 0;
+ state->domains = NULL;
+ state->nr_domains = 0;
}
-static int add_domain(virDomainPtr dom) {
- virDomainPtr *new_ptr;
- int new_size = sizeof(domains[0]) * (nr_domains + 1);
+static int add_domain(struct lv_read_state *state, virDomainPtr dom,
+ bool active) {
+ domain_t *new_ptr;
+ int new_size = sizeof(state->domains[0]) * (state->nr_domains + 1);
- if (domains)
- new_ptr = realloc(domains, new_size);
+ if (state->domains)
+ new_ptr = realloc(state->domains, new_size);
else
new_ptr = malloc(new_size);
if (new_ptr == NULL)
return -1;
- domains = new_ptr;
- domains[nr_domains] = dom;
- return nr_domains++;
+ state->domains = new_ptr;
+ state->domains[state->nr_domains].ptr = dom;
+ state->domains[state->nr_domains].active = active;
+ memset(&state->domains[state->nr_domains].info, 0,
+ sizeof(state->domains[state->nr_domains].info));
+
+ return state->nr_domains++;
}
-static void free_block_devices(void) {
- if (block_devices) {
- for (int i = 0; i < nr_block_devices; ++i)
- sfree(block_devices[i].path);
- sfree(block_devices);
+static void free_block_devices(struct lv_read_state *state) {
+ if (state->block_devices) {
+ for (int i = 0; i < state->nr_block_devices; ++i)
+ sfree(state->block_devices[i].path);
+ sfree(state->block_devices);
}
- block_devices = NULL;
- nr_block_devices = 0;
+ state->block_devices = NULL;
+ state->nr_block_devices = 0;
}
-static int add_block_device(virDomainPtr dom, const char *path) {
+static int add_block_device(struct lv_read_state *state, virDomainPtr dom,
+ const char *path) {
struct block_device *new_ptr;
- int new_size = sizeof(block_devices[0]) * (nr_block_devices + 1);
+ int new_size =
+ sizeof(state->block_devices[0]) * (state->nr_block_devices + 1);
char *path_copy;
path_copy = strdup(path);
if (!path_copy)
return -1;
- if (block_devices)
- new_ptr = realloc(block_devices, new_size);
+ if (state->block_devices)
+ new_ptr = realloc(state->block_devices, new_size);
else
new_ptr = malloc(new_size);
sfree(path_copy);
return -1;
}
- block_devices = new_ptr;
- block_devices[nr_block_devices].dom = dom;
- block_devices[nr_block_devices].path = path_copy;
- return nr_block_devices++;
+ state->block_devices = new_ptr;
+ state->block_devices[state->nr_block_devices].dom = dom;
+ state->block_devices[state->nr_block_devices].path = path_copy;
+ return state->nr_block_devices++;
}
-static void free_interface_devices(void) {
- if (interface_devices) {
- for (int i = 0; i < nr_interface_devices; ++i) {
- sfree(interface_devices[i].path);
- sfree(interface_devices[i].address);
- sfree(interface_devices[i].number);
+static void free_interface_devices(struct lv_read_state *state) {
+ if (state->interface_devices) {
+ for (int i = 0; i < state->nr_interface_devices; ++i) {
+ sfree(state->interface_devices[i].path);
+ sfree(state->interface_devices[i].address);
+ sfree(state->interface_devices[i].number);
}
- sfree(interface_devices);
+ sfree(state->interface_devices);
}
- interface_devices = NULL;
- nr_interface_devices = 0;
+ state->interface_devices = NULL;
+ state->nr_interface_devices = 0;
}
-static int add_interface_device(virDomainPtr dom, const char *path,
- const char *address, unsigned int number) {
+static int add_interface_device(struct lv_read_state *state, virDomainPtr dom,
+ const char *path, const char *address,
+ unsigned int number) {
struct interface_device *new_ptr;
- int new_size = sizeof(interface_devices[0]) * (nr_interface_devices + 1);
- char *path_copy, *address_copy, number_string[15];
+ int new_size =
+ sizeof(state->interface_devices[0]) * (state->nr_interface_devices + 1);
+ char *path_copy, *address_copy, number_string[21];
if ((path == NULL) || (address == NULL))
return EINVAL;
snprintf(number_string, sizeof(number_string), "interface-%u", number);
- if (interface_devices)
- new_ptr = realloc(interface_devices, new_size);
+ if (state->interface_devices)
+ new_ptr = realloc(state->interface_devices, new_size);
else
new_ptr = malloc(new_size);
sfree(address_copy);
return -1;
}
- interface_devices = new_ptr;
- interface_devices[nr_interface_devices].dom = dom;
- interface_devices[nr_interface_devices].path = path_copy;
- interface_devices[nr_interface_devices].address = address_copy;
- interface_devices[nr_interface_devices].number = strdup(number_string);
- return nr_interface_devices++;
+ state->interface_devices = new_ptr;
+ state->interface_devices[state->nr_interface_devices].dom = dom;
+ state->interface_devices[state->nr_interface_devices].path = path_copy;
+ state->interface_devices[state->nr_interface_devices].address = address_copy;
+ state->interface_devices[state->nr_interface_devices].number =
+ strdup(number_string);
+ return state->nr_interface_devices++;
}
static int ignore_device_match(ignorelist_t *il, const char *domname,
if ((domname == NULL) || (devpath == NULL))
return 0;
- n = sizeof(char) * (strlen(domname) + strlen(devpath) + 2);
+ n = strlen(domname) + strlen(devpath) + 2;
name = malloc(n);
if (name == NULL) {
ERROR(PLUGIN_NAME " plugin: malloc failed.");
return 0;
}
- ssnprintf(name, n, "%s:%s", domname, devpath);
+ snprintf(name, n, "%s:%s", domname, devpath);
r = ignorelist_match(il, name);
sfree(name);
return r;
}
static int lv_shutdown(void) {
- free_block_devices();
- free_interface_devices();
- free_domains();
+ for (int i = 0; i < nr_instances; ++i) {
+ lv_fini_instance(i);
+ }
- if (conn != NULL)
- virConnectClose(conn);
- conn = NULL;
+ DEBUG(PLUGIN_NAME " plugin: stopping event loop");
+
+ if (!persistent_notification)
+ stop_event_loop(¬if_thread);
+
+ lv_disconnect();
ignorelist_free(il_domains);
il_domains = NULL;
void module_register(void) {
plugin_register_config(PLUGIN_NAME, lv_config, config_keys, NR_CONFIG_KEYS);
plugin_register_init(PLUGIN_NAME, lv_init);
- plugin_register_read(PLUGIN_NAME, lv_read);
plugin_register_shutdown(PLUGIN_NAME, lv_shutdown);
}
-
-/*
- * vim: shiftwidth=4 tabstop=8 softtabstop=4 expandtab fdm=marker
- */
projects / collectd.git / blobdiff