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// SPDX-License-Identifier: GPL-3.0-or-later
#include "plugin_proc.h"
static struct proc_module {
const char *name;
const char *dim;
int enabled;
int (*func)(int update_every, usec_t dt);
RRDDIM *rd;
} proc_modules[] = {
// system metrics
{.name = "/proc/stat", .dim = "stat", .func = do_proc_stat},
{.name = "/proc/uptime", .dim = "uptime", .func = do_proc_uptime},
{.name = "/proc/loadavg", .dim = "loadavg", .func = do_proc_loadavg},
{.name = "/proc/sys/kernel/random/entropy_avail", .dim = "entropy", .func = do_proc_sys_kernel_random_entropy_avail},
// pressure metrics
{.name = "/proc/pressure", .dim = "pressure", .func = do_proc_pressure},
// CPU metrics
{.name = "/proc/interrupts", .dim = "interrupts", .func = do_proc_interrupts},
{.name = "/proc/softirqs", .dim = "softirqs", .func = do_proc_softirqs},
// memory metrics
{.name = "/proc/vmstat", .dim = "vmstat", .func = do_proc_vmstat},
{.name = "/proc/meminfo", .dim = "meminfo", .func = do_proc_meminfo},
{.name = "/sys/kernel/mm/ksm", .dim = "ksm", .func = do_sys_kernel_mm_ksm},
{.name = "/sys/block/zram", .dim = "zram", .func = do_sys_block_zram},
{.name = "/sys/devices/system/edac/mc", .dim = "ecc", .func = do_proc_sys_devices_system_edac_mc},
{.name = "/sys/devices/system/node", .dim = "numa", .func = do_proc_sys_devices_system_node},
{.name = "/proc/pagetypeinfo", .dim = "pagetypeinfo", .func = do_proc_pagetypeinfo},
// network metrics
{.name = "/proc/net/wireless", .dim = "netwireless", .func = do_proc_net_wireless},
{.name = "/proc/net/sockstat", .dim = "sockstat", .func = do_proc_net_sockstat},
{.name = "/proc/net/sockstat6", .dim = "sockstat6", .func = do_proc_net_sockstat6},
{.name = "/proc/net/netstat",
.dim = "netstat",
.func = do_proc_net_netstat}, // this has to be before /proc/net/snmp, because there is a shared metric
{.name = "/proc/net/snmp", .dim = "snmp", .func = do_proc_net_snmp},
{.name = "/proc/net/snmp6", .dim = "snmp6", .func = do_proc_net_snmp6},
{.name = "/proc/net/sctp/snmp", .dim = "sctp", .func = do_proc_net_sctp_snmp},
{.name = "/proc/net/softnet_stat", .dim = "softnet", .func = do_proc_net_softnet_stat},
{.name = "/proc/net/ip_vs/stats", .dim = "ipvs", .func = do_proc_net_ip_vs_stats},
{.name = "/sys/class/infiniband", .dim = "infiniband", .func = do_sys_class_infiniband},
// firewall metrics
{.name = "/proc/net/stat/conntrack", .dim = "conntrack", .func = do_proc_net_stat_conntrack},
{.name = "/proc/net/stat/synproxy", .dim = "synproxy", .func = do_proc_net_stat_synproxy},
// disk metrics
{.name = "/proc/diskstats", .dim = "diskstats", .func = do_proc_diskstats},
{.name = "/proc/mdstat", .dim = "mdstat", .func = do_proc_mdstat},
// NFS metrics
{.name = "/proc/net/rpc/nfsd", .dim = "nfsd", .func = do_proc_net_rpc_nfsd},
{.name = "/proc/net/rpc/nfs", .dim = "nfs", .func = do_proc_net_rpc_nfs},
// ZFS metrics
{.name = "/proc/spl/kstat/zfs/arcstats", .dim = "zfs_arcstats", .func = do_proc_spl_kstat_zfs_arcstats},
{.name = "/proc/spl/kstat/zfs/pool/state",.dim = "zfs_pool_state",.func = do_proc_spl_kstat_zfs_pool_state},
// BTRFS metrics
{.name = "/sys/fs/btrfs", .dim = "btrfs", .func = do_sys_fs_btrfs},
// IPC metrics
{.name = "ipc", .dim = "ipc", .func = do_ipc},
{.name = "/sys/class/power_supply", .dim = "power_supply", .func = do_sys_class_power_supply},
// linux power supply metrics
// the terminator of this array
{.name = NULL, .dim = NULL, .func = NULL}
};
#if WORKER_UTILIZATION_MAX_JOB_TYPES < 36
#error WORKER_UTILIZATION_MAX_JOB_TYPES has to be at least 36
#endif
static netdata_thread_t *netdev_thread = NULL;
static void proc_main_cleanup(void *ptr)
{
struct netdata_static_thread *static_thread = (struct netdata_static_thread *)ptr;
static_thread->enabled = NETDATA_MAIN_THREAD_EXITING;
info("cleaning up...");
if (netdev_thread) {
netdata_thread_join(*netdev_thread, NULL);
freez(netdev_thread);
}
static_thread->enabled = NETDATA_MAIN_THREAD_EXITED;
worker_unregister();
}
void *proc_main(void *ptr)
{
worker_register("PROC");
if (config_get_boolean("plugin:proc", "/proc/net/dev", CONFIG_BOOLEAN_YES)) {
netdev_thread = mallocz(sizeof(netdata_thread_t));
debug(D_SYSTEM, "Starting thread %s.", THREAD_NETDEV_NAME);
netdata_thread_create(
netdev_thread, THREAD_NETDEV_NAME, NETDATA_THREAD_OPTION_JOINABLE, netdev_main, netdev_thread);
}
netdata_thread_cleanup_push(proc_main_cleanup, ptr);
config_get_boolean("plugin:proc", "/proc/pagetypeinfo", CONFIG_BOOLEAN_NO);
// check the enabled status for each module
int i;
for (i = 0; proc_modules[i].name; i++) {
struct proc_module *pm = &proc_modules[i];
pm->enabled = config_get_boolean("plugin:proc", pm->name, CONFIG_BOOLEAN_YES);
pm->rd = NULL;
worker_register_job_name(i, proc_modules[i].dim);
}
usec_t step = localhost->rrd_update_every * USEC_PER_SEC;
heartbeat_t hb;
heartbeat_init(&hb);
while (!netdata_exit) {
worker_is_idle();
usec_t hb_dt = heartbeat_next(&hb, step);
if (unlikely(netdata_exit))
break;
for (i = 0; proc_modules[i].name; i++) {
if (unlikely(netdata_exit))
break;
struct proc_module *pm = &proc_modules[i];
if (unlikely(!pm->enabled))
continue;
debug(D_PROCNETDEV_LOOP, "PROC calling %s.", pm->name);
worker_is_busy(i);
pm->enabled = !pm->func(localhost->rrd_update_every, hb_dt);
}
}
netdata_thread_cleanup_pop(1);
return NULL;
}
int get_numa_node_count(void)
{
static int numa_node_count = -1;
if (numa_node_count != -1)
return numa_node_count;
numa_node_count = 0;
char name[FILENAME_MAX + 1];
snprintfz(name, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, "/sys/devices/system/node");
char *dirname = config_get("plugin:proc:/sys/devices/system/node", "directory to monitor", name);
DIR *dir = opendir(dirname);
if (dir) {
struct dirent *de = NULL;
while ((de = readdir(dir))) {
if (de->d_type != DT_DIR)
continue;
if (strncmp(de->d_name, "node", 4) != 0)
continue;
if (!isdigit(de->d_name[4]))
continue;
numa_node_count++;
}
closedir(dir);
}
return numa_node_count;
}
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