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) {
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");
82 if(mnl_socket_bind(nl, 0, MNL_SOCKET_AUTOPID) < 0) {
84 error("nfacct.plugin: mnl_socket_bind() failed");
88 portid = mnl_socket_get_portid(nl);
90 // ------------------------------------------------------------------------
92 struct timeval last, now;
93 unsigned long long usec = 0, susec = 0;
96 gettimeofday(&last, NULL);
98 // ------------------------------------------------------------------------
101 if(unlikely(netdata_exit)) break;
105 nlh = nfacct_nlmsg_build_hdr(buf, NFNL_MSG_ACCT_GET, NLM_F_DUMP, seq);
107 mnl_socket_close(nl);
108 error("nfacct.plugin: nfacct_nlmsg_build_hdr() failed");
113 if(mnl_socket_sendto(nl, nlh, nlh->nlmsg_len) < 0) {
114 error("nfacct.plugin: mnl_socket_send");
119 if(nfacct_list) nfacct_list->len = 0;
122 while((ret = mnl_socket_recvfrom(nl, buf, sizeof(buf))) > 0) {
123 if((ret = mnl_cb_run(buf, ret, seq, portid, nfacct_callback, NULL)) <= 0) break;
127 error("nfacct.plugin: error communicating with kernel.");
132 // --------------------------------------------------------------------
134 gettimeofday(&now, NULL);
135 usec = dt_usec(&now, &last) - susec;
136 debug(D_NFACCT_LOOP, "nfacct.plugin: last loop took %llu usec (worked for %llu, sleeped for %llu).", usec + susec, usec, susec);
138 if(usec < (rrd_update_every * 1000000ULL / 2ULL)) susec = (rrd_update_every * 1000000ULL) - usec;
139 else susec = rrd_update_every * 1000000ULL / 2ULL;
142 // --------------------------------------------------------------------
144 if(nfacct_list && nfacct_list->len) {
147 st = rrdset_find_bytype("netfilter", "nfacct_packets");
149 st = rrdset_create("netfilter", "nfacct_packets", NULL, "nfacct", NULL, "Netfilter Accounting Packets", "packets/s", 3206, rrd_update_every, RRDSET_TYPE_STACKED);
151 for(i = 0; i < nfacct_list->len ; i++)
152 rrddim_add(st, nfacct_list->data[i].name, NULL, 1, rrd_update_every, RRDDIM_INCREMENTAL);
154 else rrdset_next(st);
156 for(i = 0; i < nfacct_list->len ; i++) {
157 RRDDIM *rd = rrddim_find(st, nfacct_list->data[i].name);
159 if(!rd) rd = rrddim_add(st, nfacct_list->data[i].name, NULL, 1, rrd_update_every, RRDDIM_INCREMENTAL);
160 if(rd) rrddim_set_by_pointer(st, rd, nfacct_list->data[i].pkts);
165 // ----------------------------------------------------------------
167 st = rrdset_find_bytype("netfilter", "nfacct_bytes");
169 st = rrdset_create("netfilter", "nfacct_bytes", NULL, "nfacct", NULL, "Netfilter Accounting Bandwidth", "kilobytes/s", 3207, rrd_update_every, RRDSET_TYPE_STACKED);
171 for(i = 0; i < nfacct_list->len ; i++)
172 rrddim_add(st, nfacct_list->data[i].name, NULL, 1, 1000 * rrd_update_every, RRDDIM_INCREMENTAL);
174 else rrdset_next(st);
176 for(i = 0; i < nfacct_list->len ; i++) {
177 RRDDIM *rd = rrddim_find(st, nfacct_list->data[i].name);
179 if(!rd) rd = rrddim_add(st, nfacct_list->data[i].name, NULL, 1, 1000 * rrd_update_every, RRDDIM_INCREMENTAL);
180 if(rd) rrddim_set_by_pointer(st, rd, nfacct_list->data[i].bytes);
186 // --------------------------------------------------------------------
190 // copy current to last
191 memmove(&last, &now, sizeof(struct timeval));
194 mnl_socket_close(nl);