4 #ifdef INTERNAL_PLUGIN_NFACCT
16 #include <libmnl/libmnl.h>
17 #include <libnetfilter_acct/libnetfilter_acct.h>
19 #include "global_statistics.h"
21 #include "appconfig.h"
24 #include "plugin_proc.h"
30 struct nfacct *nfacct;
36 struct mynfacct data[];
37 } *nfacct_list = NULL;
39 static int nfacct_callback(const struct nlmsghdr *nlh, void *data) {
42 if(!nfacct_list || nfacct_list->len == nfacct_list->size) {
43 int size = (nfacct_list) ? nfacct_list->size : 0;
44 int len = (nfacct_list) ? nfacct_list->len : 0;
47 info("nfacct.plugin: increasing nfacct_list to size %d", size);
49 nfacct_list = realloc(nfacct_list, sizeof(struct nfacct_list) + (sizeof(struct mynfacct) * size));
51 error("nfacct.plugin: cannot allocate nfacct_list.");
55 nfacct_list->data[len].nfacct = nfacct_alloc();
56 if(!nfacct_list->data[size - 1].nfacct) {
57 error("nfacct.plugin: nfacct_alloc() failed.");
63 nfacct_list->size = size;
64 nfacct_list->len = len;
67 if(nfacct_nlmsg_parse_payload(nlh, nfacct_list->data[nfacct_list->len].nfacct) < 0) {
68 error("nfacct.plugin: nfacct_nlmsg_parse_payload() failed.");
72 nfacct_list->data[nfacct_list->len].name = nfacct_attr_get_str(nfacct_list->data[nfacct_list->len].nfacct, NFACCT_ATTR_NAME);
73 nfacct_list->data[nfacct_list->len].pkts = nfacct_attr_get_u64(nfacct_list->data[nfacct_list->len].nfacct, NFACCT_ATTR_PKTS);
74 nfacct_list->data[nfacct_list->len].bytes = nfacct_attr_get_u64(nfacct_list->data[nfacct_list->len].nfacct, NFACCT_ATTR_BYTES);
80 void *nfacct_main(void *ptr) {
83 info("NFACCT thread created with task id %d", gettid());
85 if(pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL) != 0)
86 error("nfacct.plugin: Cannot set pthread cancel type to DEFERRED.");
88 if(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) != 0)
89 error("nfacct.plugin: Cannot set pthread cancel state to ENABLE.");
91 char buf[MNL_SOCKET_BUFFER_SIZE];
92 struct mnl_socket *nl = NULL;
93 struct nlmsghdr *nlh = NULL;
94 unsigned int seq = 0, portid = 0;
98 nl = mnl_socket_open(NETLINK_NETFILTER);
100 error("nfacct.plugin: mnl_socket_open() failed");
104 if(mnl_socket_bind(nl, 0, MNL_SOCKET_AUTOPID) < 0) {
105 mnl_socket_close(nl);
106 error("nfacct.plugin: mnl_socket_bind() failed");
109 portid = mnl_socket_get_portid(nl);
111 // ------------------------------------------------------------------------
113 struct timeval last, now;
114 unsigned long long usec = 0, susec = 0;
117 gettimeofday(&last, NULL);
119 // ------------------------------------------------------------------------
124 nlh = nfacct_nlmsg_build_hdr(buf, NFNL_MSG_ACCT_GET, NLM_F_DUMP, seq);
126 mnl_socket_close(nl);
127 error("nfacct.plugin: nfacct_nlmsg_build_hdr() failed");
131 if(mnl_socket_sendto(nl, nlh, nlh->nlmsg_len) < 0) {
132 error("nfacct.plugin: mnl_socket_send");
136 if(nfacct_list) nfacct_list->len = 0;
139 while((ret = mnl_socket_recvfrom(nl, buf, sizeof(buf))) > 0) {
140 if((ret = mnl_cb_run(buf, ret, seq, portid, nfacct_callback, NULL)) <= 0) break;
144 error("nfacct.plugin: error communicating with kernel.");
148 // --------------------------------------------------------------------
150 gettimeofday(&now, NULL);
151 usec = usecdiff(&now, &last) - susec;
152 debug(D_NFACCT_LOOP, "nfacct.plugin: last loop took %llu usec (worked for %llu, sleeped for %llu).", usec + susec, usec, susec);
154 if(usec < (rrd_update_every * 1000000ULL / 2ULL)) susec = (rrd_update_every * 1000000ULL) - usec;
155 else susec = rrd_update_every * 1000000ULL / 2ULL;
158 // --------------------------------------------------------------------
160 if(nfacct_list && nfacct_list->len) {
163 st = rrdset_find_bytype("nfacct", "packets");
165 st = rrdset_create("nfacct", "packets", NULL, "netfilter", "Netfilter Accounting Packets", "packets/s", 1006, rrd_update_every, RRDSET_TYPE_STACKED);
167 for(i = 0; i < nfacct_list->len ; i++)
168 rrddim_add(st, nfacct_list->data[i].name, NULL, 1, rrd_update_every, RRDDIM_INCREMENTAL);
170 else rrdset_next(st);
172 for(i = 0; i < nfacct_list->len ; i++) {
173 RRDDIM *rd = rrddim_find(st, nfacct_list->data[i].name);
175 if(!rd) rd = rrddim_add(st, nfacct_list->data[i].name, NULL, 1, rrd_update_every, RRDDIM_INCREMENTAL);
176 if(rd) rrddim_set_by_pointer(st, rd, nfacct_list->data[i].pkts);
181 // ----------------------------------------------------------------
183 st = rrdset_find_bytype("nfacct", "bytes");
185 st = rrdset_create("nfacct", "bytes", NULL, "netfilter", "Netfilter Accounting Bandwidth", "kilobytes/s", 1007, rrd_update_every, RRDSET_TYPE_STACKED);
187 for(i = 0; i < nfacct_list->len ; i++)
188 rrddim_add(st, nfacct_list->data[i].name, NULL, 1, 1000 * rrd_update_every, RRDDIM_INCREMENTAL);
190 else rrdset_next(st);
192 for(i = 0; i < nfacct_list->len ; i++) {
193 RRDDIM *rd = rrddim_find(st, nfacct_list->data[i].name);
195 if(!rd) rd = rrddim_add(st, nfacct_list->data[i].name, NULL, 1, 1000 * rrd_update_every, RRDDIM_INCREMENTAL);
196 if(rd) rrddim_set_by_pointer(st, rd, nfacct_list->data[i].bytes);
202 // --------------------------------------------------------------------
206 // copy current to last
207 bcopy(&now, &last, sizeof(struct timeval));
210 mnl_socket_close(nl);