diff options
Diffstat (limited to 'src/plugin_nfacct.c')
| -rw-r--r-- | src/plugin_nfacct.c | 819 |
1 files changed, 0 insertions, 819 deletions
diff --git a/src/plugin_nfacct.c b/src/plugin_nfacct.c deleted file mode 100644 index 02815ef04..000000000 --- a/src/plugin_nfacct.c +++ /dev/null @@ -1,819 +0,0 @@ -#include "common.h" - -#ifdef INTERNAL_PLUGIN_NFACCT - -#ifdef HAVE_LIBMNL -#include <libmnl/libmnl.h> - -static inline size_t mnl_buffer_size() { - long s = MNL_SOCKET_BUFFER_SIZE; - if(s <= 0) return 8192; - return (size_t)s; -} - -// ---------------------------------------------------------------------------- -// DO_NFSTAT - collect netfilter connection tracker statistics via netlink -// example: https://github.com/formorer/pkg-conntrack-tools/blob/master/src/conntrack.c - -#ifdef HAVE_LINUX_NETFILTER_NFNETLINK_CONNTRACK_H -#define DO_NFSTAT 1 - -#define RRD_TYPE_NET_STAT_NETFILTER "netfilter" -#define RRD_TYPE_NET_STAT_CONNTRACK "netlink" // FIXME: should be "conntrack" when merged with the /proc plugin - -#include <linux/netfilter/nfnetlink_conntrack.h> - -static struct { - int update_every; - char *buf; - size_t buf_size; - struct mnl_socket *mnl; - struct nlmsghdr *nlh; - struct nfgenmsg *nfh; - unsigned int seq; - uint32_t portid; - - struct nlattr *tb[CTA_STATS_MAX+1]; - const char *attr2name[CTA_STATS_MAX+1]; - kernel_uint_t metrics[CTA_STATS_MAX+1]; - - struct nlattr *tb_exp[CTA_STATS_EXP_MAX+1]; - const char *attr2name_exp[CTA_STATS_EXP_MAX+1]; - kernel_uint_t metrics_exp[CTA_STATS_EXP_MAX+1]; -} nfstat_root = { - .update_every = 1, - .buf = NULL, - .buf_size = 0, - .mnl = NULL, - .nlh = NULL, - .nfh = NULL, - .seq = 0, - .portid = 0, - .tb = {}, - .attr2name = { - [CTA_STATS_SEARCHED] = "searched", - [CTA_STATS_FOUND] = "found", - [CTA_STATS_NEW] = "new", - [CTA_STATS_INVALID] = "invalid", - [CTA_STATS_IGNORE] = "ignore", - [CTA_STATS_DELETE] = "delete", - [CTA_STATS_DELETE_LIST] = "delete_list", - [CTA_STATS_INSERT] = "insert", - [CTA_STATS_INSERT_FAILED] = "insert_failed", - [CTA_STATS_DROP] = "drop", - [CTA_STATS_EARLY_DROP] = "early_drop", - [CTA_STATS_ERROR] = "icmp_error", - [CTA_STATS_SEARCH_RESTART] = "search_restart", - }, - .metrics = {}, - .tb_exp = {}, - .attr2name_exp = { - [CTA_STATS_EXP_NEW] = "new", - [CTA_STATS_EXP_CREATE] = "created", - [CTA_STATS_EXP_DELETE] = "deleted", - }, - .metrics_exp = {} -}; - - -static int nfstat_init(int update_every) { - nfstat_root.update_every = update_every; - - nfstat_root.buf_size = mnl_buffer_size(); - nfstat_root.buf = mallocz(nfstat_root.buf_size); - - nfstat_root.mnl = mnl_socket_open(NETLINK_NETFILTER); - if(!nfstat_root.mnl) { - error("NFSTAT: mnl_socket_open() failed"); - return 1; - } - - nfstat_root.seq = (unsigned int)now_realtime_sec() - 1; - - if(mnl_socket_bind(nfstat_root.mnl, 0, MNL_SOCKET_AUTOPID) < 0) { - error("NFSTAT: mnl_socket_bind() failed"); - return 1; - } - nfstat_root.portid = mnl_socket_get_portid(nfstat_root.mnl); - - return 0; -} - -static void nfstat_cleanup() { - if(nfstat_root.mnl) { - mnl_socket_close(nfstat_root.mnl); - nfstat_root.mnl = NULL; - } - - freez(nfstat_root.buf); - nfstat_root.buf = NULL; - nfstat_root.buf_size = 0; -} - -static struct nlmsghdr * nfct_mnl_nlmsghdr_put(char *buf, uint16_t subsys, uint16_t type, uint8_t family, uint32_t seq) { - struct nlmsghdr *nlh; - struct nfgenmsg *nfh; - - nlh = mnl_nlmsg_put_header(buf); - nlh->nlmsg_type = (subsys << 8) | type; - nlh->nlmsg_flags = NLM_F_REQUEST|NLM_F_DUMP; - nlh->nlmsg_seq = seq; - - nfh = mnl_nlmsg_put_extra_header(nlh, sizeof(struct nfgenmsg)); - nfh->nfgen_family = family; - nfh->version = NFNETLINK_V0; - nfh->res_id = 0; - - return nlh; -} - -static int nfct_stats_attr_cb(const struct nlattr *attr, void *data) { - const struct nlattr **tb = data; - int type = mnl_attr_get_type(attr); - - if (mnl_attr_type_valid(attr, CTA_STATS_MAX) < 0) - return MNL_CB_OK; - - if (mnl_attr_validate(attr, MNL_TYPE_U32) < 0) { - error("NFSTAT: mnl_attr_validate() failed"); - return MNL_CB_ERROR; - } - - tb[type] = attr; - return MNL_CB_OK; -} - -static int nfstat_callback(const struct nlmsghdr *nlh, void *data) { - (void)data; - - struct nfgenmsg *nfg = mnl_nlmsg_get_payload(nlh); - - mnl_attr_parse(nlh, sizeof(*nfg), nfct_stats_attr_cb, nfstat_root.tb); - - // printf("cpu=%-4u\t", ntohs(nfg->res_id)); - - int i; - // add the metrics of this CPU into the metrics - for (i = 0; i < CTA_STATS_MAX+1; i++) { - if (nfstat_root.tb[i]) { - // printf("%s=%u ", nfstat_root.attr2name[i], ntohl(mnl_attr_get_u32(nfstat_root.tb[i]))); - nfstat_root.metrics[i] += ntohl(mnl_attr_get_u32(nfstat_root.tb[i])); - } - } - // printf("\n"); - - return MNL_CB_OK; -} - -static int nfstat_collect_conntrack() { - // zero all metrics - we will sum the metrics of all CPUs later - int i; - for (i = 0; i < CTA_STATS_MAX+1; i++) - nfstat_root.metrics[i] = 0; - - // prepare the request - nfstat_root.nlh = nfct_mnl_nlmsghdr_put(nfstat_root.buf, NFNL_SUBSYS_CTNETLINK, IPCTNL_MSG_CT_GET_STATS_CPU, AF_UNSPEC, nfstat_root.seq); - - // send the request - if(mnl_socket_sendto(nfstat_root.mnl, nfstat_root.nlh, nfstat_root.nlh->nlmsg_len) < 0) { - error("NFSTAT: mnl_socket_sendto() failed"); - return 1; - } - - // get the reply - ssize_t ret; - while ((ret = mnl_socket_recvfrom(nfstat_root.mnl, nfstat_root.buf, nfstat_root.buf_size)) > 0) { - if(mnl_cb_run( - nfstat_root.buf - , (size_t)ret - , nfstat_root.nlh->nlmsg_seq - , nfstat_root.portid - , nfstat_callback - , NULL - ) <= MNL_CB_STOP) - break; - } - - // verify we run without issues - if (ret == -1) { - error("NFSTAT: error communicating with kernel. This plugin can only work when netdata runs as root."); - return 1; - } - - return 0; -} - -static int nfexp_stats_attr_cb(const struct nlattr *attr, void *data) -{ - const struct nlattr **tb = data; - int type = mnl_attr_get_type(attr); - - if (mnl_attr_type_valid(attr, CTA_STATS_EXP_MAX) < 0) - return MNL_CB_OK; - - if (mnl_attr_validate(attr, MNL_TYPE_U32) < 0) { - error("NFSTAT EXP: mnl_attr_validate() failed"); - return MNL_CB_ERROR; - } - - tb[type] = attr; - return MNL_CB_OK; -} - -static int nfstat_callback_exp(const struct nlmsghdr *nlh, void *data) { - (void)data; - - struct nfgenmsg *nfg = mnl_nlmsg_get_payload(nlh); - - mnl_attr_parse(nlh, sizeof(*nfg), nfexp_stats_attr_cb, nfstat_root.tb_exp); - - int i; - for (i = 0; i < CTA_STATS_EXP_MAX+1; i++) { - if (nfstat_root.tb_exp[i]) { - nfstat_root.metrics_exp[i] += ntohl(mnl_attr_get_u32(nfstat_root.tb_exp[i])); - } - } - - return MNL_CB_OK; -} - -static int nfstat_collect_conntrack_expectations() { - // zero all metrics - we will sum the metrics of all CPUs later - int i; - for (i = 0; i < CTA_STATS_EXP_MAX+1; i++) - nfstat_root.metrics_exp[i] = 0; - - // prepare the request - nfstat_root.nlh = nfct_mnl_nlmsghdr_put(nfstat_root.buf, NFNL_SUBSYS_CTNETLINK_EXP, IPCTNL_MSG_EXP_GET_STATS_CPU, AF_UNSPEC, nfstat_root.seq); - - // send the request - if(mnl_socket_sendto(nfstat_root.mnl, nfstat_root.nlh, nfstat_root.nlh->nlmsg_len) < 0) { - error("NFSTAT: mnl_socket_sendto() failed"); - return 1; - } - - // get the reply - ssize_t ret; - while ((ret = mnl_socket_recvfrom(nfstat_root.mnl, nfstat_root.buf, nfstat_root.buf_size)) > 0) { - if(mnl_cb_run( - nfstat_root.buf - , (size_t)ret - , nfstat_root.nlh->nlmsg_seq - , nfstat_root.portid - , nfstat_callback_exp - , NULL - ) <= MNL_CB_STOP) - break; - } - - // verify we run without issues - if (ret == -1) { - error("NFSTAT: error communicating with kernel. This plugin can only work when netdata runs as root."); - return 1; - } - - return 0; -} - -static int nfstat_collect() { - nfstat_root.seq++; - - if(nfstat_collect_conntrack()) - return 1; - - if(nfstat_collect_conntrack_expectations()) - return 1; - - return 0; -} - -static void nfstat_send_metrics() { - - { - static RRDSET *st_new = NULL; - static RRDDIM *rd_new = NULL, *rd_ignore = NULL, *rd_invalid = NULL; - - if(!st_new) { - st_new = rrdset_create_localhost( - RRD_TYPE_NET_STAT_NETFILTER - , RRD_TYPE_NET_STAT_CONNTRACK "_new" - , NULL - , RRD_TYPE_NET_STAT_CONNTRACK - , NULL - , "Connection Tracker New Connections" - , "connections/s" - , "nfacct" - , NULL - , 3001 - , nfstat_root.update_every - , RRDSET_TYPE_LINE - ); - - rd_new = rrddim_add(st_new, nfstat_root.attr2name[CTA_STATS_NEW], NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL); - rd_ignore = rrddim_add(st_new, nfstat_root.attr2name[CTA_STATS_IGNORE], NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL); - rd_invalid = rrddim_add(st_new, nfstat_root.attr2name[CTA_STATS_INVALID], NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL); - } - else - rrdset_next(st_new); - - rrddim_set_by_pointer(st_new, rd_new, (collected_number) nfstat_root.metrics[CTA_STATS_NEW]); - rrddim_set_by_pointer(st_new, rd_ignore, (collected_number) nfstat_root.metrics[CTA_STATS_IGNORE]); - rrddim_set_by_pointer(st_new, rd_invalid, (collected_number) nfstat_root.metrics[CTA_STATS_INVALID]); - - rrdset_done(st_new); - } - - // ---------------------------------------------------------------- - - { - static RRDSET *st_changes = NULL; - static RRDDIM *rd_inserted = NULL, *rd_deleted = NULL, *rd_delete_list = NULL; - - if(!st_changes) { - st_changes = rrdset_create_localhost( - RRD_TYPE_NET_STAT_NETFILTER - , RRD_TYPE_NET_STAT_CONNTRACK "_changes" - , NULL - , RRD_TYPE_NET_STAT_CONNTRACK - , NULL - , "Connection Tracker Changes" - , "changes/s" - , "nfacct" - , NULL - , 3002 - , nfstat_root.update_every - , RRDSET_TYPE_LINE - ); - rrdset_flag_set(st_changes, RRDSET_FLAG_DETAIL); - - rd_inserted = rrddim_add(st_changes, nfstat_root.attr2name[CTA_STATS_INSERT], NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL); - rd_deleted = rrddim_add(st_changes, nfstat_root.attr2name[CTA_STATS_DELETE], NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL); - rd_delete_list = rrddim_add(st_changes, nfstat_root.attr2name[CTA_STATS_DELETE_LIST], NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL); - } - else - rrdset_next(st_changes); - - rrddim_set_by_pointer(st_changes, rd_inserted, (collected_number) nfstat_root.metrics[CTA_STATS_INSERT]); - rrddim_set_by_pointer(st_changes, rd_deleted, (collected_number) nfstat_root.metrics[CTA_STATS_DELETE]); - rrddim_set_by_pointer(st_changes, rd_delete_list, (collected_number) nfstat_root.metrics[CTA_STATS_DELETE_LIST]); - - rrdset_done(st_changes); - } - - // ---------------------------------------------------------------- - - { - static RRDSET *st_search = NULL; - static RRDDIM *rd_searched = NULL, *rd_restarted = NULL, *rd_found = NULL; - - if(!st_search) { - st_search = rrdset_create_localhost( - RRD_TYPE_NET_STAT_NETFILTER - , RRD_TYPE_NET_STAT_CONNTRACK "_search" - , NULL - , RRD_TYPE_NET_STAT_CONNTRACK - , NULL - , "Connection Tracker Searches" - , "searches/s" - , "nfacct" - , NULL - , 3010 - , nfstat_root.update_every - , RRDSET_TYPE_LINE - ); - rrdset_flag_set(st_search, RRDSET_FLAG_DETAIL); - - rd_searched = rrddim_add(st_search, nfstat_root.attr2name[CTA_STATS_SEARCHED], NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL); - rd_restarted = rrddim_add(st_search, nfstat_root.attr2name[CTA_STATS_SEARCH_RESTART], NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL); - rd_found = rrddim_add(st_search, nfstat_root.attr2name[CTA_STATS_FOUND], NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL); - } - else - rrdset_next(st_search); - - rrddim_set_by_pointer(st_search, rd_searched, (collected_number) nfstat_root.metrics[CTA_STATS_SEARCHED]); - rrddim_set_by_pointer(st_search, rd_restarted, (collected_number) nfstat_root.metrics[CTA_STATS_SEARCH_RESTART]); - rrddim_set_by_pointer(st_search, rd_found, (collected_number) nfstat_root.metrics[CTA_STATS_FOUND]); - - rrdset_done(st_search); - } - - // ---------------------------------------------------------------- - - { - static RRDSET *st_errors = NULL; - static RRDDIM *rd_error = NULL, *rd_insert_failed = NULL, *rd_drop = NULL, *rd_early_drop = NULL; - - if(!st_errors) { - st_errors = rrdset_create_localhost( - RRD_TYPE_NET_STAT_NETFILTER - , RRD_TYPE_NET_STAT_CONNTRACK "_errors" - , NULL - , RRD_TYPE_NET_STAT_CONNTRACK - , NULL - , "Connection Tracker Errors" - , "events/s" - , "nfacct" - , NULL - , 3005 - , nfstat_root.update_every - , RRDSET_TYPE_LINE - ); - rrdset_flag_set(st_errors, RRDSET_FLAG_DETAIL); - - rd_error = rrddim_add(st_errors, nfstat_root.attr2name[CTA_STATS_ERROR], NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL); - rd_insert_failed = rrddim_add(st_errors, nfstat_root.attr2name[CTA_STATS_INSERT_FAILED], NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL); - rd_drop = rrddim_add(st_errors, nfstat_root.attr2name[CTA_STATS_DROP], NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL); - rd_early_drop = rrddim_add(st_errors, nfstat_root.attr2name[CTA_STATS_EARLY_DROP], NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL); - } - else - rrdset_next(st_errors); - - rrddim_set_by_pointer(st_errors, rd_error, (collected_number) nfstat_root.metrics[CTA_STATS_ERROR]); - rrddim_set_by_pointer(st_errors, rd_insert_failed, (collected_number) nfstat_root.metrics[CTA_STATS_INSERT_FAILED]); - rrddim_set_by_pointer(st_errors, rd_drop, (collected_number) nfstat_root.metrics[CTA_STATS_DROP]); - rrddim_set_by_pointer(st_errors, rd_early_drop, (collected_number) nfstat_root.metrics[CTA_STATS_EARLY_DROP]); - - rrdset_done(st_errors); - } - - // ---------------------------------------------------------------- - - { - static RRDSET *st_expect = NULL; - static RRDDIM *rd_new = NULL, *rd_created = NULL, *rd_deleted = NULL; - - if(!st_expect) { - st_expect = rrdset_create_localhost( - RRD_TYPE_NET_STAT_NETFILTER - , RRD_TYPE_NET_STAT_CONNTRACK "_expect" - , NULL - , RRD_TYPE_NET_STAT_CONNTRACK - , NULL - , "Connection Tracker Expectations" - , "expectations/s" - , "nfacct" - , NULL - , 3003 - , nfstat_root.update_every - , RRDSET_TYPE_LINE - ); - rrdset_flag_set(st_expect, RRDSET_FLAG_DETAIL); - - rd_created = rrddim_add(st_expect, nfstat_root.attr2name_exp[CTA_STATS_EXP_CREATE], NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL); - rd_deleted = rrddim_add(st_expect, nfstat_root.attr2name_exp[CTA_STATS_EXP_DELETE], NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL); - rd_new = rrddim_add(st_expect, nfstat_root.attr2name_exp[CTA_STATS_EXP_NEW], NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL); - } - else - rrdset_next(st_expect); - - rrddim_set_by_pointer(st_expect, rd_created, (collected_number) nfstat_root.metrics_exp[CTA_STATS_EXP_CREATE]); - rrddim_set_by_pointer(st_expect, rd_deleted, (collected_number) nfstat_root.metrics_exp[CTA_STATS_EXP_DELETE]); - rrddim_set_by_pointer(st_expect, rd_new, (collected_number) nfstat_root.metrics_exp[CTA_STATS_EXP_NEW]); - - rrdset_done(st_expect); - } - -} - -#endif // HAVE_LINUX_NETFILTER_NFNETLINK_CONNTRACK_H - - -// ---------------------------------------------------------------------------- -// DO_NFACCT - collect netfilter accounting statistics via netlink - -#ifdef HAVE_LIBNETFILTER_ACCT -#define DO_NFACCT 1 - -#include <libnetfilter_acct/libnetfilter_acct.h> - -struct nfacct_data { - char *name; - uint32_t hash; - - uint64_t pkts; - uint64_t bytes; - - RRDDIM *rd_bytes; - RRDDIM *rd_packets; - - int updated; - - struct nfacct_data *next; -}; - -static struct { - int update_every; - char *buf; - size_t buf_size; - struct mnl_socket *mnl; - struct nlmsghdr *nlh; - unsigned int seq; - uint32_t portid; - struct nfacct *nfacct_buffer; - struct nfacct_data *nfacct_metrics; -} nfacct_root = { - .update_every = 1, - .buf = NULL, - .buf_size = 0, - .mnl = NULL, - .nlh = NULL, - .seq = 0, - .portid = 0, - .nfacct_buffer = NULL, - .nfacct_metrics = NULL -}; - -static inline struct nfacct_data *nfacct_data_get(const char *name, uint32_t hash) { - struct nfacct_data *d = NULL, *last = NULL; - for(d = nfacct_root.nfacct_metrics; d ; last = d, d = d->next) { - if(unlikely(d->hash == hash && !strcmp(d->name, name))) - return d; - } - - d = callocz(1, sizeof(struct nfacct_data)); - d->name = strdupz(name); - d->hash = hash; - - if(!last) { - d->next = nfacct_root.nfacct_metrics; - nfacct_root.nfacct_metrics = d; - } - else { - d->next = last->next; - last->next = d; - } - - return d; -} - -static int nfacct_init(int update_every) { - nfacct_root.update_every = update_every; - - nfacct_root.buf_size = mnl_buffer_size(); - nfacct_root.buf = mallocz(nfacct_root.buf_size); - - nfacct_root.nfacct_buffer = nfacct_alloc(); - if(!nfacct_root.nfacct_buffer) { - error("nfacct.plugin: nfacct_alloc() failed."); - return 0; - } - - nfacct_root.seq = (unsigned int)now_realtime_sec() - 1; - - nfacct_root.mnl = mnl_socket_open(NETLINK_NETFILTER); - if(!nfacct_root.mnl) { - error("nfacct.plugin: mnl_socket_open() failed"); - return 1; - } - - if(mnl_socket_bind(nfacct_root.mnl, 0, MNL_SOCKET_AUTOPID) < 0) { - error("nfacct.plugin: mnl_socket_bind() failed"); - return 1; - } - nfacct_root.portid = mnl_socket_get_portid(nfacct_root.mnl); - - return 0; -} - -static void nfacct_cleanup() { - if(nfacct_root.mnl) { - mnl_socket_close(nfacct_root.mnl); - nfacct_root.mnl = NULL; - } - - if(nfacct_root.nfacct_buffer) { - nfacct_free(nfacct_root.nfacct_buffer); - nfacct_root.nfacct_buffer = NULL; - } - - freez(nfacct_root.buf); - nfacct_root.buf = NULL; - nfacct_root.buf_size = 0; - - // FIXME: cleanup the metrics linked list -} - -static int nfacct_callback(const struct nlmsghdr *nlh, void *data) { - (void)data; - - if(nfacct_nlmsg_parse_payload(nlh, nfacct_root.nfacct_buffer) < 0) { - error("NFACCT: nfacct_nlmsg_parse_payload() failed."); - return MNL_CB_OK; - } - - const char *name = nfacct_attr_get_str(nfacct_root.nfacct_buffer, NFACCT_ATTR_NAME); - uint32_t hash = simple_hash(name); - - struct nfacct_data *d = nfacct_data_get(name, hash); - - d->pkts = nfacct_attr_get_u64(nfacct_root.nfacct_buffer, NFACCT_ATTR_PKTS); - d->bytes = nfacct_attr_get_u64(nfacct_root.nfacct_buffer, NFACCT_ATTR_BYTES); - d->updated = 1; - - return MNL_CB_OK; -} - -static int nfacct_collect() { - // mark all old metrics as not-updated - struct nfacct_data *d; - for(d = nfacct_root.nfacct_metrics; d ; d = d->next) - d->updated = 0; - - // prepare the request - nfacct_root.seq++; - nfacct_root.nlh = nfacct_nlmsg_build_hdr(nfacct_root.buf, NFNL_MSG_ACCT_GET, NLM_F_DUMP, (uint32_t)nfacct_root.seq); - if(!nfacct_root.nlh) { - error("NFACCT: nfacct_nlmsg_build_hdr() failed"); - return 1; - } - - // send the request - if(mnl_socket_sendto(nfacct_root.mnl, nfacct_root.nlh, nfacct_root.nlh->nlmsg_len) < 0) { - error("NFACCT: mnl_socket_sendto() failed"); - return 1; - } - - // get the reply - ssize_t ret; - while((ret = mnl_socket_recvfrom(nfacct_root.mnl, nfacct_root.buf, nfacct_root.buf_size)) > 0) { - if(mnl_cb_run( - nfacct_root.buf - , (size_t)ret - , nfacct_root.seq - , nfacct_root.portid - , nfacct_callback - , NULL - ) <= 0) - break; - } - - // verify we run without issues - if (ret == -1) { - error("NFACCT: error communicating with kernel. This plugin can only work when netdata runs as root."); - return 1; - } - - return 0; -} - -static void nfacct_send_metrics() { - static RRDSET *st_bytes = NULL, *st_packets = NULL; - - if(!nfacct_root.nfacct_metrics) return; - struct nfacct_data *d; - - if(!st_packets) { - st_packets = rrdset_create_localhost( - "netfilter" - , "nfacct_packets" - , NULL - , "nfacct" - , NULL - , "Netfilter Accounting Packets" - , "packets/s" - , "nfacct" - , NULL - , 3206 - , nfacct_root.update_every - , RRDSET_TYPE_STACKED - ); - } - else rrdset_next(st_packets); - - for(d = nfacct_root.nfacct_metrics; d ; d = d->next) { - if(likely(d->updated)) { - if(unlikely(!d->rd_packets)) - d->rd_packets = rrddim_add( - st_packets - , d->name - , NULL - , 1 - , nfacct_root.update_every - , RRD_ALGORITHM_INCREMENTAL - ); - - rrddim_set_by_pointer( - st_packets - , d->rd_packets - , (collected_number)d->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" - , "nfacct" - , NULL - , 3207 - , nfacct_root.update_every - , RRDSET_TYPE_STACKED - ); - } - else rrdset_next(st_bytes); - - for(d = nfacct_root.nfacct_metrics; d ; d = d->next) { - if(likely(d->updated)) { - if(unlikely(!d->rd_bytes)) - d->rd_bytes = rrddim_add( - st_bytes - , d->name - , NULL - , 1 - , 1000 * nfacct_root.update_every - , RRD_ALGORITHM_INCREMENTAL - ); - - rrddim_set_by_pointer( - st_bytes - , d->rd_bytes - , (collected_number)d->bytes - ); - } - } - - rrdset_done(st_bytes); -} - -#endif // HAVE_LIBNETFILTER_ACCT -#endif // HAVE_LIBMNL - -// ---------------------------------------------------------------------------- - -static void nfacct_main_cleanup(void *ptr) { - struct netdata_static_thread *static_thread = (struct netdata_static_thread *)ptr; - static_thread->enabled = NETDATA_MAIN_THREAD_EXITING; - info("cleaning up..."); - -#ifdef DO_NFACCT - nfacct_cleanup(); -#endif - -#ifdef DO_NFSTAT - nfstat_cleanup(); -#endif - - static_thread->enabled = NETDATA_MAIN_THREAD_EXITED; -} - -void *nfacct_main(void *ptr) { - netdata_thread_cleanup_push(nfacct_main_cleanup, ptr); - - int update_every = (int)config_get_number("plugin:netfilter", "update every", localhost->rrd_update_every); - if(update_every < localhost->rrd_update_every) - update_every = localhost->rrd_update_every; - -#ifdef DO_NFACCT - int nfacct = !nfacct_init(update_every); -#endif - -#ifdef DO_NFSTAT - int nfstat = !nfstat_init(update_every); -#endif - - // ------------------------------------------------------------------------ - - 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; - -#ifdef DO_NFACCT - if(likely(nfacct)) { - nfacct = !nfacct_collect(); - - if(likely(nfacct)) - nfacct_send_metrics(); - } -#endif - -#ifdef DO_NFSTAT - if(likely(nfstat)) { - nfstat = !nfstat_collect(); - - if(likely(nfstat)) - nfstat_send_metrics(); - } -#endif - } - - netdata_thread_cleanup_pop(1); - return NULL; -} - -#endif // INTERNAL_PLUGIN_NFACCT |