-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-#ifdef INTERNAL_PLUGIN_NFACCT
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/types.h>
-#include <dirent.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <time.h>
-#include <errno.h>
+#include "common.h"
+#ifdef INTERNAL_PLUGIN_NFACCT
#include <libmnl/libmnl.h>
#include <libnetfilter_acct/libnetfilter_acct.h>
-#include "main.h"
-#include "global_statistics.h"
-#include "common.h"
-#include "appconfig.h"
-#include "log.h"
-#include "rrd.h"
-#include "plugin_proc.h"
-
struct mynfacct {
- const char *name;
- uint64_t pkts;
- uint64_t bytes;
- struct nfacct *nfacct;
+ const char *name;
+ uint64_t pkts;
+ uint64_t bytes;
+
+ RRDDIM *rd_bytes;
+ RRDDIM *rd_packets;
+
+ int updated;
+
+ struct nfacct *nfacct;
};
struct nfacct_list {
- int size;
- int len;
- struct mynfacct data[];
+ int size;
+ int len;
+ struct mynfacct data[];
} *nfacct_list = NULL;
static int nfacct_callback(const struct nlmsghdr *nlh, void *data) {
- if(data) {};
-
- if(!nfacct_list || nfacct_list->len == nfacct_list->size) {
- int size = (nfacct_list) ? nfacct_list->size : 0;
- int len = (nfacct_list) ? nfacct_list->len : 0;
- size++;
-
- info("nfacct.plugin: increasing nfacct_list to size %d", size);
-
- nfacct_list = realloc(nfacct_list, sizeof(struct nfacct_list) + (sizeof(struct mynfacct) * size));
- if(!nfacct_list) {
- error("nfacct.plugin: cannot allocate nfacct_list.");
- return MNL_CB_OK;
- }
-
- nfacct_list->data[len].nfacct = nfacct_alloc();
- if(!nfacct_list->data[size - 1].nfacct) {
- error("nfacct.plugin: nfacct_alloc() failed.");
- free(nfacct_list);
- nfacct_list = NULL;
- return MNL_CB_OK;
- }
-
- nfacct_list->size = size;
- nfacct_list->len = len;
- }
-
- if(nfacct_nlmsg_parse_payload(nlh, nfacct_list->data[nfacct_list->len].nfacct) < 0) {
- error("nfacct.plugin: nfacct_nlmsg_parse_payload() failed.");
- return MNL_CB_OK;
- }
-
- nfacct_list->data[nfacct_list->len].name = nfacct_attr_get_str(nfacct_list->data[nfacct_list->len].nfacct, NFACCT_ATTR_NAME);
- nfacct_list->data[nfacct_list->len].pkts = nfacct_attr_get_u64(nfacct_list->data[nfacct_list->len].nfacct, NFACCT_ATTR_PKTS);
- nfacct_list->data[nfacct_list->len].bytes = nfacct_attr_get_u64(nfacct_list->data[nfacct_list->len].nfacct, NFACCT_ATTR_BYTES);
-
- nfacct_list->len++;
- return MNL_CB_OK;
-}
-
-void *nfacct_main(void *ptr) {
- if(ptr) { ; }
-
- info("NFACCT thread created with task id %d", gettid());
-
- if(pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL) != 0)
- error("nfacct.plugin: Cannot set pthread cancel type to DEFERRED.");
-
- if(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) != 0)
- error("nfacct.plugin: Cannot set pthread cancel state to ENABLE.");
-
- char buf[MNL_SOCKET_BUFFER_SIZE];
- struct mnl_socket *nl = NULL;
- struct nlmsghdr *nlh = NULL;
- unsigned int seq = 0, portid = 0;
-
- seq = time(NULL) - 1;
-
- nl = mnl_socket_open(NETLINK_NETFILTER);
- if(!nl) {
- error("nfacct.plugin: mnl_socket_open() failed");
- pthread_exit(NULL);
- return NULL;
- }
-
- if(mnl_socket_bind(nl, 0, MNL_SOCKET_AUTOPID) < 0) {
- mnl_socket_close(nl);
- error("nfacct.plugin: mnl_socket_bind() failed");
- pthread_exit(NULL);
- return NULL;
- }
- portid = mnl_socket_get_portid(nl);
-
- // ------------------------------------------------------------------------
-
- struct timeval last, now;
- unsigned long long usec = 0, susec = 0;
- RRDSET *st = NULL;
-
- gettimeofday(&last, NULL);
+ (void)data;
- // ------------------------------------------------------------------------
+ if(!nfacct_list || nfacct_list->len == nfacct_list->size) {
+ int size = (nfacct_list) ? nfacct_list->size : 0;
+ int len = (nfacct_list) ? nfacct_list->len : 0;
+ size++;
- while(1) {
- if(unlikely(netdata_exit)) break;
+ info("nfacct.plugin: increasing nfacct_list to size %d", size);
- seq++;
+ nfacct_list = reallocz(nfacct_list, sizeof(struct nfacct_list) + (sizeof(struct mynfacct) * size));
- nlh = nfacct_nlmsg_build_hdr(buf, NFNL_MSG_ACCT_GET, NLM_F_DUMP, seq);
- if(!nlh) {
- mnl_socket_close(nl);
- error("nfacct.plugin: nfacct_nlmsg_build_hdr() failed");
- pthread_exit(NULL);
- return NULL;
- }
+ nfacct_list->data[len].nfacct = nfacct_alloc();
+ if(!nfacct_list->data[len].nfacct) {
+ error("nfacct.plugin: nfacct_alloc() failed.");
+ free(nfacct_list);
+ nfacct_list = NULL;
+ return MNL_CB_OK;
+ }
- if(mnl_socket_sendto(nl, nlh, nlh->nlmsg_len) < 0) {
- error("nfacct.plugin: mnl_socket_send");
- pthread_exit(NULL);
- return NULL;
- }
+ nfacct_list->data[len].rd_bytes = NULL;
+ nfacct_list->data[len].rd_packets = NULL;
+ nfacct_list->data[len].updated = 0;
- if(nfacct_list) nfacct_list->len = 0;
+ nfacct_list->size = size;
+ nfacct_list->len = len;
+ }
- int ret;
- while((ret = mnl_socket_recvfrom(nl, buf, sizeof(buf))) > 0) {
- if((ret = mnl_cb_run(buf, ret, seq, portid, nfacct_callback, NULL)) <= 0) break;
- }
+ if(nfacct_nlmsg_parse_payload(nlh, nfacct_list->data[nfacct_list->len].nfacct) < 0) {
+ error("nfacct.plugin: nfacct_nlmsg_parse_payload() failed.");
+ return MNL_CB_OK;
+ }
- if (ret == -1) {
- error("nfacct.plugin: error communicating with kernel.");
- pthread_exit(NULL);
- return NULL;
- }
+ nfacct_list->data[nfacct_list->len].name = nfacct_attr_get_str(nfacct_list->data[nfacct_list->len].nfacct, NFACCT_ATTR_NAME);
+ nfacct_list->data[nfacct_list->len].pkts = nfacct_attr_get_u64(nfacct_list->data[nfacct_list->len].nfacct, NFACCT_ATTR_PKTS);
+ nfacct_list->data[nfacct_list->len].bytes = nfacct_attr_get_u64(nfacct_list->data[nfacct_list->len].nfacct, NFACCT_ATTR_BYTES);
+ nfacct_list->data[nfacct_list->len].updated = 1;
- // --------------------------------------------------------------------
-
- gettimeofday(&now, NULL);
- usec = usecdiff(&now, &last) - susec;
- debug(D_NFACCT_LOOP, "nfacct.plugin: last loop took %llu usec (worked for %llu, sleeped for %llu).", usec + susec, usec, susec);
-
- if(usec < (rrd_update_every * 1000000ULL / 2ULL)) susec = (rrd_update_every * 1000000ULL) - usec;
- else susec = rrd_update_every * 1000000ULL / 2ULL;
-
-
- // --------------------------------------------------------------------
-
- if(nfacct_list && nfacct_list->len) {
- int i;
-
- st = rrdset_find_bytype("nfacct", "packets");
- if(!st) {
- st = rrdset_create("nfacct", "packets", NULL, "netfilter", NULL, "Netfilter Accounting Packets", "packets/s", 1006, rrd_update_every, RRDSET_TYPE_STACKED);
-
- for(i = 0; i < nfacct_list->len ; i++)
- rrddim_add(st, nfacct_list->data[i].name, NULL, 1, rrd_update_every, RRDDIM_INCREMENTAL);
- }
- else rrdset_next(st);
-
- for(i = 0; i < nfacct_list->len ; i++) {
- RRDDIM *rd = rrddim_find(st, nfacct_list->data[i].name);
-
- if(!rd) rd = rrddim_add(st, nfacct_list->data[i].name, NULL, 1, rrd_update_every, RRDDIM_INCREMENTAL);
- if(rd) rrddim_set_by_pointer(st, rd, nfacct_list->data[i].pkts);
- }
-
- rrdset_done(st);
-
- // ----------------------------------------------------------------
-
- st = rrdset_find_bytype("nfacct", "bytes");
- if(!st) {
- st = rrdset_create("nfacct", "bytes", NULL, "netfilter", NULL, "Netfilter Accounting Bandwidth", "kilobytes/s", 1007, rrd_update_every, RRDSET_TYPE_STACKED);
-
- for(i = 0; i < nfacct_list->len ; i++)
- rrddim_add(st, nfacct_list->data[i].name, NULL, 1, 1000 * rrd_update_every, RRDDIM_INCREMENTAL);
- }
- else rrdset_next(st);
-
- for(i = 0; i < nfacct_list->len ; i++) {
- RRDDIM *rd = rrddim_find(st, nfacct_list->data[i].name);
-
- if(!rd) rd = rrddim_add(st, nfacct_list->data[i].name, NULL, 1, 1000 * rrd_update_every, RRDDIM_INCREMENTAL);
- if(rd) rrddim_set_by_pointer(st, rd, nfacct_list->data[i].bytes);
- }
-
- rrdset_done(st);
- }
-
- // --------------------------------------------------------------------
-
- usleep(susec);
-
- // copy current to last
- bcopy(&now, &last, sizeof(struct timeval));
- }
+ nfacct_list->len++;
+ return MNL_CB_OK;
+}
- mnl_socket_close(nl);
- pthread_exit(NULL);
- return NULL;
+void *nfacct_main(void *ptr) {
+ struct netdata_static_thread *static_thread = (struct netdata_static_thread *)ptr;
+
+ info("NFACCT thread created with task id %d", gettid());
+
+ if(pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL) != 0)
+ error("nfacct.plugin: Cannot set pthread cancel type to DEFERRED.");
+
+ if(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) != 0)
+ error("nfacct.plugin: Cannot set pthread cancel state to ENABLE.");
+
+ char buf[MNL_SOCKET_BUFFER_SIZE];
+ struct mnl_socket *nl = NULL;
+ struct nlmsghdr *nlh = NULL;
+ unsigned int seq = 0, portid = 0;
+
+ seq = (unsigned int)now_realtime_sec() - 1;
+
+ nl = mnl_socket_open(NETLINK_NETFILTER);
+ if(!nl) {
+ error("nfacct.plugin: mnl_socket_open() failed");
+ goto cleanup;
+ }
+
+ if(mnl_socket_bind(nl, 0, MNL_SOCKET_AUTOPID) < 0) {
+ error("nfacct.plugin: mnl_socket_bind() failed");
+ goto cleanup;
+ }
+ portid = mnl_socket_get_portid(nl);
+
+ // ------------------------------------------------------------------------
+
+ RRDSET *st_bytes = NULL, *st_packets = NULL;
+
+ // ------------------------------------------------------------------------
+
+ int update_every = (int)config_get_number("plugin:nfacct", "update every", localhost->rrd_update_every);
+ if(update_every < localhost->rrd_update_every)
+ update_every = localhost->rrd_update_every;
+
+ usec_t step = update_every * USEC_PER_SEC;
+ heartbeat_t hb;
+ heartbeat_init(&hb);
+ for(;;) {
+ heartbeat_dt_usec(&hb);
+ heartbeat_next(&hb, step);
+
+ if(unlikely(netdata_exit)) break;
+
+ seq++;
+
+ nlh = nfacct_nlmsg_build_hdr(buf, NFNL_MSG_ACCT_GET, NLM_F_DUMP, (uint32_t)seq);
+ if(!nlh) {
+ error("nfacct.plugin: nfacct_nlmsg_build_hdr() failed");
+ goto cleanup;
+ }
+
+ if(mnl_socket_sendto(nl, nlh, nlh->nlmsg_len) < 0) {
+ error("nfacct.plugin: mnl_socket_send");
+ goto cleanup;
+ }
+
+ if(nfacct_list) nfacct_list->len = 0;
+
+ ssize_t ret;
+ while((ret = mnl_socket_recvfrom(nl, buf, sizeof(buf))) > 0) {
+ if((ret = mnl_cb_run(buf, (size_t)ret, seq, portid, nfacct_callback, NULL)) <= 0) break;
+ }
+
+ if (ret == -1) {
+ error("nfacct.plugin: error communicating with kernel. NFACCT plugin can only work when netdata runs as root.");
+ goto cleanup;
+ }
+
+ // --------------------------------------------------------------------
+
+ if(nfacct_list && nfacct_list->len) {
+ int i;
+
+ if(!st_packets) {
+ st_packets = rrdset_create_localhost(
+ "netfilter"
+ , "nfacct_packets"
+ , NULL
+ , "nfacct"
+ , NULL
+ , "Netfilter Accounting Packets"
+ , "packets/s"
+ , 3206
+ , update_every
+ , RRDSET_TYPE_STACKED
+ );
+ }
+ else rrdset_next(st_packets);
+
+ for(i = 0; i < nfacct_list->len ; i++) {
+ if(nfacct_list->data[i].updated) {
+ if(unlikely(!nfacct_list->data[i].rd_packets))
+ nfacct_list->data[i].rd_packets = rrddim_add(
+ st_packets
+ , nfacct_list->data[i].name
+ , NULL
+ , 1
+ , update_every
+ , RRD_ALGORITHM_INCREMENTAL
+ );
+
+ rrddim_set_by_pointer(
+ st_packets
+ , nfacct_list->data[i].rd_packets
+ , (collected_number)nfacct_list->data[i].pkts
+ );
+ }
+ }
+
+ rrdset_done(st_packets);
+
+ // ----------------------------------------------------------------
+
+ st_bytes = rrdset_find_bytype_localhost("netfilter", "nfacct_bytes");
+ if(!st_bytes) {
+ st_bytes = rrdset_create_localhost(
+ "netfilter"
+ , "nfacct_bytes"
+ , NULL
+ , "nfacct"
+ , NULL
+ , "Netfilter Accounting Bandwidth"
+ , "kilobytes/s"
+ , 3207
+ , update_every
+ , RRDSET_TYPE_STACKED
+ );
+ }
+ else rrdset_next(st_bytes);
+
+ for(i = 0; i < nfacct_list->len ; i++) {
+ if(nfacct_list->data[i].updated) {
+ if(unlikely(!nfacct_list->data[i].rd_bytes))
+ nfacct_list->data[i].rd_bytes = rrddim_add(
+ st_bytes
+ , nfacct_list->data[i].name
+ , NULL
+ , 1
+ , 1000 * update_every
+ , RRD_ALGORITHM_INCREMENTAL
+ );
+
+ rrddim_set_by_pointer(
+ st_bytes
+ , nfacct_list->data[i].rd_bytes
+ , (collected_number)nfacct_list->data[i].bytes
+ );
+ }
+ }
+
+ rrdset_done(st_bytes);
+
+
+ // ----------------------------------------------------------------
+ // prepare for the next loop
+
+ for(i = 0; i < nfacct_list->len ; i++)
+ nfacct_list->data[i].updated = 0;
+ }
+ }
+
+cleanup:
+ info("NFACCT thread exiting");
+
+ if(nl) mnl_socket_close(nl);
+
+ static_thread->enabled = 0;
+ pthread_exit(NULL);
+ return NULL;
}
#endif
projects / netdata.git / blobdiff