3 #ifdef INTERNAL_PLUGIN_NFACCT
4 #include <libmnl/libmnl.h>
5 #include <libnetfilter_acct/libnetfilter_acct.h>
11 struct nfacct *nfacct;
17 struct mynfacct data[];
18 } *nfacct_list = NULL;
20 static int nfacct_callback(const struct nlmsghdr *nlh, void *data) {
23 if(!nfacct_list || nfacct_list->len == nfacct_list->size) {
24 int size = (nfacct_list) ? nfacct_list->size : 0;
25 int len = (nfacct_list) ? nfacct_list->len : 0;
28 info("nfacct.plugin: increasing nfacct_list to size %d", size);
30 nfacct_list = reallocz(nfacct_list, sizeof(struct nfacct_list) + (sizeof(struct mynfacct) * size));
32 nfacct_list->data[len].nfacct = nfacct_alloc();
33 if(!nfacct_list->data[size - 1].nfacct) {
34 error("nfacct.plugin: nfacct_alloc() failed.");
40 nfacct_list->size = size;
41 nfacct_list->len = len;
44 if(nfacct_nlmsg_parse_payload(nlh, nfacct_list->data[nfacct_list->len].nfacct) < 0) {
45 error("nfacct.plugin: nfacct_nlmsg_parse_payload() failed.");
49 nfacct_list->data[nfacct_list->len].name = nfacct_attr_get_str(nfacct_list->data[nfacct_list->len].nfacct, NFACCT_ATTR_NAME);
50 nfacct_list->data[nfacct_list->len].pkts = nfacct_attr_get_u64(nfacct_list->data[nfacct_list->len].nfacct, NFACCT_ATTR_PKTS);
51 nfacct_list->data[nfacct_list->len].bytes = nfacct_attr_get_u64(nfacct_list->data[nfacct_list->len].nfacct, NFACCT_ATTR_BYTES);
57 void *nfacct_main(void *ptr) {
58 struct netdata_static_thread *static_thread = (struct netdata_static_thread *)ptr;
60 info("NFACCT thread created with task id %d", gettid());
62 if(pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL) != 0)
63 error("nfacct.plugin: Cannot set pthread cancel type to DEFERRED.");
65 if(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) != 0)
66 error("nfacct.plugin: Cannot set pthread cancel state to ENABLE.");
68 char buf[MNL_SOCKET_BUFFER_SIZE];
69 struct mnl_socket *nl = NULL;
70 struct nlmsghdr *nlh = NULL;
71 unsigned int seq = 0, portid = 0;
73 seq = now_realtime_sec() - 1;
75 nl = mnl_socket_open(NETLINK_NETFILTER);
77 error("nfacct.plugin: mnl_socket_open() failed");
81 if(mnl_socket_bind(nl, 0, MNL_SOCKET_AUTOPID) < 0) {
82 error("nfacct.plugin: mnl_socket_bind() failed");
85 portid = mnl_socket_get_portid(nl);
87 // ------------------------------------------------------------------------
89 struct timeval last, now;
90 usec_t usec = 0, susec = 0;
93 now_realtime_timeval(&last);
95 // ------------------------------------------------------------------------
98 if(unlikely(netdata_exit)) break;
102 nlh = nfacct_nlmsg_build_hdr(buf, NFNL_MSG_ACCT_GET, NLM_F_DUMP, seq);
104 error("nfacct.plugin: nfacct_nlmsg_build_hdr() failed");
108 if(mnl_socket_sendto(nl, nlh, nlh->nlmsg_len) < 0) {
109 error("nfacct.plugin: mnl_socket_send");
113 if(nfacct_list) nfacct_list->len = 0;
116 while((ret = mnl_socket_recvfrom(nl, buf, sizeof(buf))) > 0) {
117 if((ret = mnl_cb_run(buf, ret, seq, portid, nfacct_callback, NULL)) <= 0) break;
121 error("nfacct.plugin: error communicating with kernel.");
125 // --------------------------------------------------------------------
127 now_realtime_timeval(&now);
128 usec = dt_usec(&now, &last) - susec;
129 debug(D_NFACCT_LOOP, "nfacct.plugin: last loop took %llu usec (worked for %llu, sleeped for %llu).", usec + susec, usec, susec);
131 if(usec < (rrd_update_every * 1000000ULL / 2ULL)) susec = (rrd_update_every * 1000000ULL) - usec;
132 else susec = rrd_update_every * 1000000ULL / 2ULL;
135 // --------------------------------------------------------------------
137 if(nfacct_list && nfacct_list->len) {
140 st = rrdset_find_bytype("netfilter", "nfacct_packets");
142 st = rrdset_create("netfilter", "nfacct_packets", NULL, "nfacct", NULL, "Netfilter Accounting Packets", "packets/s", 3206, rrd_update_every, RRDSET_TYPE_STACKED);
144 for(i = 0; i < nfacct_list->len ; i++)
145 rrddim_add(st, nfacct_list->data[i].name, NULL, 1, rrd_update_every, RRDDIM_INCREMENTAL);
147 else rrdset_next(st);
149 for(i = 0; i < nfacct_list->len ; i++) {
150 RRDDIM *rd = rrddim_find(st, nfacct_list->data[i].name);
152 if(!rd) rd = rrddim_add(st, nfacct_list->data[i].name, NULL, 1, rrd_update_every, RRDDIM_INCREMENTAL);
153 if(rd) rrddim_set_by_pointer(st, rd, nfacct_list->data[i].pkts);
158 // ----------------------------------------------------------------
160 st = rrdset_find_bytype("netfilter", "nfacct_bytes");
162 st = rrdset_create("netfilter", "nfacct_bytes", NULL, "nfacct", NULL, "Netfilter Accounting Bandwidth", "kilobytes/s", 3207, rrd_update_every, RRDSET_TYPE_STACKED);
164 for(i = 0; i < nfacct_list->len ; i++)
165 rrddim_add(st, nfacct_list->data[i].name, NULL, 1, 1000 * rrd_update_every, RRDDIM_INCREMENTAL);
167 else rrdset_next(st);
169 for(i = 0; i < nfacct_list->len ; i++) {
170 RRDDIM *rd = rrddim_find(st, nfacct_list->data[i].name);
172 if(!rd) rd = rrddim_add(st, nfacct_list->data[i].name, NULL, 1, 1000 * rrd_update_every, RRDDIM_INCREMENTAL);
173 if(rd) rrddim_set_by_pointer(st, rd, nfacct_list->data[i].bytes);
179 // --------------------------------------------------------------------
183 // copy current to last
184 memmove(&last, &now, sizeof(struct timeval));
188 info("NFACCT thread exiting");
190 if(nl) mnl_socket_close(nl);
192 static_thread->enabled = 0;