3 #ifdef INTERNAL_PLUGIN_NFACCT
4 #include <libmnl/libmnl.h>
5 #include <libnetfilter_acct/libnetfilter_acct.h>
17 struct nfacct *nfacct;
23 struct mynfacct data[];
24 } *nfacct_list = NULL;
26 static int nfacct_callback(const struct nlmsghdr *nlh, void *data) {
29 if(!nfacct_list || nfacct_list->len == nfacct_list->size) {
30 int size = (nfacct_list) ? nfacct_list->size : 0;
31 int len = (nfacct_list) ? nfacct_list->len : 0;
34 info("nfacct.plugin: increasing nfacct_list to size %d", size);
36 nfacct_list = reallocz(nfacct_list, sizeof(struct nfacct_list) + (sizeof(struct mynfacct) * size));
38 nfacct_list->data[len].nfacct = nfacct_alloc();
39 if(!nfacct_list->data[len].nfacct) {
40 error("nfacct.plugin: nfacct_alloc() failed.");
46 nfacct_list->data[len].rd_bytes = NULL;
47 nfacct_list->data[len].rd_packets = NULL;
48 nfacct_list->data[len].updated = 0;
50 nfacct_list->size = size;
51 nfacct_list->len = len;
54 if(nfacct_nlmsg_parse_payload(nlh, nfacct_list->data[nfacct_list->len].nfacct) < 0) {
55 error("nfacct.plugin: nfacct_nlmsg_parse_payload() failed.");
59 nfacct_list->data[nfacct_list->len].name = nfacct_attr_get_str(nfacct_list->data[nfacct_list->len].nfacct, NFACCT_ATTR_NAME);
60 nfacct_list->data[nfacct_list->len].pkts = nfacct_attr_get_u64(nfacct_list->data[nfacct_list->len].nfacct, NFACCT_ATTR_PKTS);
61 nfacct_list->data[nfacct_list->len].bytes = nfacct_attr_get_u64(nfacct_list->data[nfacct_list->len].nfacct, NFACCT_ATTR_BYTES);
62 nfacct_list->data[nfacct_list->len].updated = 1;
68 void *nfacct_main(void *ptr) {
69 struct netdata_static_thread *static_thread = (struct netdata_static_thread *)ptr;
71 info("NFACCT thread created with task id %d", gettid());
73 if(pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL) != 0)
74 error("nfacct.plugin: Cannot set pthread cancel type to DEFERRED.");
76 if(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) != 0)
77 error("nfacct.plugin: Cannot set pthread cancel state to ENABLE.");
79 char buf[MNL_SOCKET_BUFFER_SIZE];
80 struct mnl_socket *nl = NULL;
81 struct nlmsghdr *nlh = NULL;
82 unsigned int seq = 0, portid = 0;
84 seq = (unsigned int)now_realtime_sec() - 1;
86 nl = mnl_socket_open(NETLINK_NETFILTER);
88 error("nfacct.plugin: mnl_socket_open() failed");
92 if(mnl_socket_bind(nl, 0, MNL_SOCKET_AUTOPID) < 0) {
93 error("nfacct.plugin: mnl_socket_bind() failed");
96 portid = mnl_socket_get_portid(nl);
98 // ------------------------------------------------------------------------
100 RRDSET *st_bytes = NULL, *st_packets = NULL;
102 // ------------------------------------------------------------------------
104 int update_every = (int)config_get_number("plugin:nfacct", "update every", localhost->rrd_update_every);
105 if(update_every < localhost->rrd_update_every)
106 update_every = localhost->rrd_update_every;
108 usec_t step = update_every * USEC_PER_SEC;
112 heartbeat_dt_usec(&hb);
113 heartbeat_next(&hb, step);
115 if(unlikely(netdata_exit)) break;
119 nlh = nfacct_nlmsg_build_hdr(buf, NFNL_MSG_ACCT_GET, NLM_F_DUMP, (uint32_t)seq);
121 error("nfacct.plugin: nfacct_nlmsg_build_hdr() failed");
125 if(mnl_socket_sendto(nl, nlh, nlh->nlmsg_len) < 0) {
126 error("nfacct.plugin: mnl_socket_send");
130 if(nfacct_list) nfacct_list->len = 0;
133 while((ret = mnl_socket_recvfrom(nl, buf, sizeof(buf))) > 0) {
134 if((ret = mnl_cb_run(buf, (size_t)ret, seq, portid, nfacct_callback, NULL)) <= 0) break;
138 error("nfacct.plugin: error communicating with kernel. NFACCT plugin can only work when netdata runs as root.");
142 // --------------------------------------------------------------------
144 if(nfacct_list && nfacct_list->len) {
148 st_packets = rrdset_create_localhost(
154 , "Netfilter Accounting Packets"
158 , RRDSET_TYPE_STACKED
161 else rrdset_next(st_packets);
163 for(i = 0; i < nfacct_list->len ; i++) {
164 if(nfacct_list->data[i].updated) {
165 if(unlikely(!nfacct_list->data[i].rd_packets))
166 nfacct_list->data[i].rd_packets = rrddim_add(
168 , nfacct_list->data[i].name
172 , RRD_ALGORITHM_INCREMENTAL
175 rrddim_set_by_pointer(
177 , nfacct_list->data[i].rd_packets
178 , (collected_number)nfacct_list->data[i].pkts
183 rrdset_done(st_packets);
185 // ----------------------------------------------------------------
187 st_bytes = rrdset_find_bytype_localhost("netfilter", "nfacct_bytes");
189 st_bytes = rrdset_create_localhost(
195 , "Netfilter Accounting Bandwidth"
199 , RRDSET_TYPE_STACKED
202 else rrdset_next(st_bytes);
204 for(i = 0; i < nfacct_list->len ; i++) {
205 if(nfacct_list->data[i].updated) {
206 if(unlikely(!nfacct_list->data[i].rd_bytes))
207 nfacct_list->data[i].rd_bytes = rrddim_add(
209 , nfacct_list->data[i].name
212 , 1000 * update_every
213 , RRD_ALGORITHM_INCREMENTAL
216 rrddim_set_by_pointer(
218 , nfacct_list->data[i].rd_bytes
219 , (collected_number)nfacct_list->data[i].bytes
224 rrdset_done(st_bytes);
227 // ----------------------------------------------------------------
228 // prepare for the next loop
230 for(i = 0; i < nfacct_list->len ; i++)
231 nfacct_list->data[i].updated = 0;
236 info("NFACCT thread exiting");
238 if(nl) mnl_socket_close(nl);
240 static_thread->enabled = 0;