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authorLennart Weller <lhw@ring0.de>2017-07-27 09:55:47 +0000
committerLennart Weller <lhw@ring0.de>2017-07-27 09:55:47 +0000
commita133c9c3b637b1dbe7b5b053f7e2572c1950cead (patch)
tree2207939a88e96bca329457f40a9d9d18ab659dc1 /src/freebsd_getifaddrs.c
parentNew upstream version 1.6.0+dfsg (diff)
downloadnetdata-a133c9c3b637b1dbe7b5b053f7e2572c1950cead.tar.xz
netdata-a133c9c3b637b1dbe7b5b053f7e2572c1950cead.zip
New upstream version 1.7.0+dfsgupstream/1.7.0+dfsg
Diffstat (limited to 'src/freebsd_getifaddrs.c')
-rw-r--r--src/freebsd_getifaddrs.c494
1 files changed, 494 insertions, 0 deletions
diff --git a/src/freebsd_getifaddrs.c b/src/freebsd_getifaddrs.c
new file mode 100644
index 000000000..7355fac9e
--- /dev/null
+++ b/src/freebsd_getifaddrs.c
@@ -0,0 +1,494 @@
+#include "common.h"
+
+#include <ifaddrs.h>
+
+struct network_interface {
+ char *name;
+ uint32_t hash;
+ size_t len;
+
+ // flags
+ int configured;
+ int enabled;
+ int updated;
+
+ int do_bandwidth;
+ int do_packets;
+ int do_errors;
+ int do_drops;
+ int do_events;
+
+ // charts and dimensions
+
+ RRDSET *st_bandwidth;
+ RRDDIM *rd_bandwidth_in;
+ RRDDIM *rd_bandwidth_out;
+
+ RRDSET *st_packets;
+ RRDDIM *rd_packets_in;
+ RRDDIM *rd_packets_out;
+ RRDDIM *rd_packets_m_in;
+ RRDDIM *rd_packets_m_out;
+
+ RRDSET *st_errors;
+ RRDDIM *rd_errors_in;
+ RRDDIM *rd_errors_out;
+
+ RRDSET *st_drops;
+ RRDDIM *rd_drops_in;
+ RRDDIM *rd_drops_out;
+
+ RRDSET *st_events;
+ RRDDIM *rd_events_coll;
+
+ struct network_interface *next;
+};
+
+static struct network_interface *network_interfaces_root = NULL, *network_interfaces_last_used = NULL;
+
+static size_t network_interfaces_added = 0, network_interfaces_found = 0;
+
+static void network_interface_free(struct network_interface *ifm) {
+ if (likely(ifm->st_bandwidth))
+ rrdset_is_obsolete(ifm->st_bandwidth);
+ if (likely(ifm->st_packets))
+ rrdset_is_obsolete(ifm->st_packets);
+ if (likely(ifm->st_errors))
+ rrdset_is_obsolete(ifm->st_errors);
+ if (likely(ifm->st_drops))
+ rrdset_is_obsolete(ifm->st_drops);
+ if (likely(ifm->st_events))
+ rrdset_is_obsolete(ifm->st_events);
+
+ network_interfaces_added--;
+ freez(ifm->name);
+ freez(ifm);
+}
+
+static void network_interfaces_cleanup() {
+ if (likely(network_interfaces_found == network_interfaces_added)) return;
+
+ struct network_interface *ifm = network_interfaces_root, *last = NULL;
+ while(ifm) {
+ if (unlikely(!ifm->updated)) {
+ // info("Removing network interface '%s', linked after '%s'", ifm->name, last?last->name:"ROOT");
+
+ if (network_interfaces_last_used == ifm)
+ network_interfaces_last_used = last;
+
+ struct network_interface *t = ifm;
+
+ if (ifm == network_interfaces_root || !last)
+ network_interfaces_root = ifm = ifm->next;
+
+ else
+ last->next = ifm = ifm->next;
+
+ t->next = NULL;
+ network_interface_free(t);
+ }
+ else {
+ last = ifm;
+ ifm->updated = 0;
+ ifm = ifm->next;
+ }
+ }
+}
+
+static struct network_interface *get_network_interface(const char *name) {
+ struct network_interface *ifm;
+
+ uint32_t hash = simple_hash(name);
+
+ // search it, from the last position to the end
+ for(ifm = network_interfaces_last_used ; ifm ; ifm = ifm->next) {
+ if (unlikely(hash == ifm->hash && !strcmp(name, ifm->name))) {
+ network_interfaces_last_used = ifm->next;
+ return ifm;
+ }
+ }
+
+ // search it from the beginning to the last position we used
+ for(ifm = network_interfaces_root ; ifm != network_interfaces_last_used ; ifm = ifm->next) {
+ if (unlikely(hash == ifm->hash && !strcmp(name, ifm->name))) {
+ network_interfaces_last_used = ifm->next;
+ return ifm;
+ }
+ }
+
+ // create a new one
+ ifm = callocz(1, sizeof(struct network_interface));
+ ifm->name = strdupz(name);
+ ifm->hash = simple_hash(ifm->name);
+ ifm->len = strlen(ifm->name);
+ network_interfaces_added++;
+
+ // link it to the end
+ if (network_interfaces_root) {
+ struct network_interface *e;
+ for(e = network_interfaces_root; e->next ; e = e->next) ;
+ e->next = ifm;
+ }
+ else
+ network_interfaces_root = ifm;
+
+ return ifm;
+}
+
+// --------------------------------------------------------------------------------------------------------------------
+// getifaddrs
+
+int do_getifaddrs(int update_every, usec_t dt) {
+ (void)dt;
+
+#define DELAULT_EXLUDED_INTERFACES "lo*"
+#define CONFIG_SECTION_GETIFADDRS "plugin:freebsd:getifaddrs"
+
+ static int enable_new_interfaces = -1;
+ static int do_bandwidth_ipv4 = -1, do_bandwidth_ipv6 = -1, do_bandwidth = -1, do_packets = -1,
+ do_errors = -1, do_drops = -1, do_events = -1;
+ static SIMPLE_PATTERN *excluded_interfaces = NULL;
+
+ if (unlikely(enable_new_interfaces == -1)) {
+ enable_new_interfaces = config_get_boolean_ondemand(CONFIG_SECTION_GETIFADDRS,
+ "enable new interfaces detected at runtime",
+ CONFIG_BOOLEAN_AUTO);
+
+ do_bandwidth_ipv4 = config_get_boolean_ondemand(CONFIG_SECTION_GETIFADDRS, "total bandwidth for ipv4 interfaces",
+ CONFIG_BOOLEAN_AUTO);
+ do_bandwidth_ipv6 = config_get_boolean_ondemand(CONFIG_SECTION_GETIFADDRS, "total bandwidth for ipv6 interfaces",
+ CONFIG_BOOLEAN_AUTO);
+ do_bandwidth = config_get_boolean_ondemand(CONFIG_SECTION_GETIFADDRS, "bandwidth for all interfaces",
+ CONFIG_BOOLEAN_AUTO);
+ do_packets = config_get_boolean_ondemand(CONFIG_SECTION_GETIFADDRS, "packets for all interfaces",
+ CONFIG_BOOLEAN_AUTO);
+ do_errors = config_get_boolean_ondemand(CONFIG_SECTION_GETIFADDRS, "errors for all interfaces",
+ CONFIG_BOOLEAN_AUTO);
+ do_drops = config_get_boolean_ondemand(CONFIG_SECTION_GETIFADDRS, "drops for all interfaces",
+ CONFIG_BOOLEAN_AUTO);
+ do_events = config_get_boolean_ondemand(CONFIG_SECTION_GETIFADDRS, "collisions for all interfaces",
+ CONFIG_BOOLEAN_AUTO);
+
+ excluded_interfaces = simple_pattern_create(
+ config_get(CONFIG_SECTION_GETIFADDRS, "disable by default interfaces matching",
+ DELAULT_EXLUDED_INTERFACES)
+ , SIMPLE_PATTERN_EXACT
+ );
+ }
+
+ if (likely(do_bandwidth_ipv4 || do_bandwidth_ipv6 || do_bandwidth || do_packets || do_errors ||
+ do_drops || do_events)) {
+ struct ifaddrs *ifap;
+
+ if (unlikely(getifaddrs(&ifap))) {
+ error("FREEBSD: getifaddrs() failed");
+ do_bandwidth_ipv4 = 0;
+ error("DISABLED: system.ipv4 chart");
+ do_bandwidth_ipv6 = 0;
+ error("DISABLED: system.ipv6 chart");
+ do_bandwidth = 0;
+ error("DISABLED: net.* charts");
+ do_packets = 0;
+ error("DISABLED: net_packets.* charts");
+ do_errors = 0;
+ error("DISABLED: net_errors.* charts");
+ do_drops = 0;
+ error("DISABLED: net_drops.* charts");
+ do_events = 0;
+ error("DISABLED: net_events.* charts");
+ error("DISABLED: getifaddrs module");
+ return 1;
+ } else {
+#define IFA_DATA(s) (((struct if_data *)ifa->ifa_data)->ifi_ ## s)
+ struct ifaddrs *ifa;
+ struct iftot {
+ u_long ift_ibytes;
+ u_long ift_obytes;
+ } iftot = {0, 0};
+
+ // --------------------------------------------------------------------
+
+ if (likely(do_bandwidth_ipv4)) {
+ iftot.ift_ibytes = iftot.ift_obytes = 0;
+ for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
+ if (ifa->ifa_addr->sa_family != AF_INET)
+ continue;
+ iftot.ift_ibytes += IFA_DATA(ibytes);
+ iftot.ift_obytes += IFA_DATA(obytes);
+ }
+
+ static RRDSET *st = NULL;
+ static RRDDIM *rd_in = NULL, *rd_out = NULL;
+
+ if (unlikely(!st)) {
+ st = rrdset_create_localhost("system",
+ "ipv4",
+ NULL,
+ "network",
+ NULL,
+ "IPv4 Bandwidth",
+ "kilobits/s",
+ 500,
+ update_every,
+ RRDSET_TYPE_AREA
+ );
+
+ rd_in = rrddim_add(st, "InOctets", "received", 8, KILO_FACTOR, RRD_ALGORITHM_INCREMENTAL);
+ rd_out = rrddim_add(st, "OutOctets", "sent", -8, KILO_FACTOR, RRD_ALGORITHM_INCREMENTAL);
+ } else
+ rrdset_next(st);
+
+ rrddim_set_by_pointer(st, rd_in, iftot.ift_ibytes);
+ rrddim_set_by_pointer(st, rd_out, iftot.ift_obytes);
+ rrdset_done(st);
+ }
+
+ // --------------------------------------------------------------------
+
+ if (likely(do_bandwidth_ipv6)) {
+ iftot.ift_ibytes = iftot.ift_obytes = 0;
+ for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
+ if (ifa->ifa_addr->sa_family != AF_INET6)
+ continue;
+ iftot.ift_ibytes += IFA_DATA(ibytes);
+ iftot.ift_obytes += IFA_DATA(obytes);
+ }
+
+ static RRDSET *st = NULL;
+ static RRDDIM *rd_in = NULL, *rd_out = NULL;
+
+ if (unlikely(!st)) {
+ st = rrdset_create_localhost("system",
+ "ipv6",
+ NULL,
+ "network",
+ NULL,
+ "IPv6 Bandwidth",
+ "kilobits/s",
+ 500,
+ update_every,
+ RRDSET_TYPE_AREA
+ );
+
+ rd_in = rrddim_add(st, "received", NULL, 8, KILO_FACTOR, RRD_ALGORITHM_INCREMENTAL);
+ rd_out = rrddim_add(st, "sent", NULL, -8, KILO_FACTOR, RRD_ALGORITHM_INCREMENTAL);
+ } else
+ rrdset_next(st);
+
+ rrddim_set_by_pointer(st, rd_in, iftot.ift_ibytes);
+ rrddim_set_by_pointer(st, rd_out, iftot.ift_obytes);
+ rrdset_done(st);
+ }
+
+ // --------------------------------------------------------------------
+
+ network_interfaces_found = 0;
+
+ for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
+ if (ifa->ifa_addr->sa_family != AF_LINK)
+ continue;
+
+ struct network_interface *ifm = get_network_interface(ifa->ifa_name);
+ ifm->updated = 1;
+ network_interfaces_found++;
+
+ if (unlikely(!ifm->configured)) {
+ char var_name[4096 + 1];
+
+ // this is the first time we see this network interface
+
+ // remember we configured it
+ ifm->configured = 1;
+
+ ifm->enabled = enable_new_interfaces;
+
+ if (likely(ifm->enabled))
+ ifm->enabled = !simple_pattern_matches(excluded_interfaces, ifa->ifa_name);
+
+ snprintfz(var_name, 4096, "%s:%s", CONFIG_SECTION_GETIFADDRS, ifa->ifa_name);
+ ifm->enabled = config_get_boolean_ondemand(var_name, "enabled", ifm->enabled);
+
+ if (unlikely(ifm->enabled == CONFIG_BOOLEAN_NO))
+ continue;
+
+ ifm->do_bandwidth = config_get_boolean_ondemand(var_name, "bandwidth", do_bandwidth);
+ ifm->do_packets = config_get_boolean_ondemand(var_name, "packets", do_packets);
+ ifm->do_errors = config_get_boolean_ondemand(var_name, "errors", do_errors);
+ ifm->do_drops = config_get_boolean_ondemand(var_name, "drops", do_drops);
+ ifm->do_events = config_get_boolean_ondemand(var_name, "events", do_events);
+ }
+
+ if (unlikely(!ifm->enabled))
+ continue;
+
+ // --------------------------------------------------------------------
+
+ if (ifm->do_bandwidth == CONFIG_BOOLEAN_YES || (ifm->do_bandwidth == CONFIG_BOOLEAN_AUTO &&
+ (IFA_DATA(ibytes) || IFA_DATA(obytes)))) {
+ if (unlikely(!ifm->st_bandwidth)) {
+ ifm->st_bandwidth = rrdset_create_localhost("net",
+ ifa->ifa_name,
+ NULL,
+ ifa->ifa_name,
+ "net.net",
+ "Bandwidth",
+ "kilobits/s",
+ 7000,
+ update_every,
+ RRDSET_TYPE_AREA
+ );
+
+ ifm->rd_bandwidth_in = rrddim_add(ifm->st_bandwidth, "received", NULL, 8, KILO_FACTOR,
+ RRD_ALGORITHM_INCREMENTAL);
+ ifm->rd_bandwidth_out = rrddim_add(ifm->st_bandwidth, "sent", NULL, -8, KILO_FACTOR,
+ RRD_ALGORITHM_INCREMENTAL);
+ } else
+ rrdset_next(ifm->st_bandwidth);
+
+ rrddim_set_by_pointer(ifm->st_bandwidth, ifm->rd_bandwidth_in, IFA_DATA(ibytes));
+ rrddim_set_by_pointer(ifm->st_bandwidth, ifm->rd_bandwidth_out, IFA_DATA(obytes));
+ rrdset_done(ifm->st_bandwidth);
+ }
+
+ // --------------------------------------------------------------------
+
+ if (ifm->do_packets == CONFIG_BOOLEAN_YES || (ifm->do_packets == CONFIG_BOOLEAN_AUTO &&
+ (IFA_DATA(ipackets) || IFA_DATA(opackets) || IFA_DATA(imcasts) || IFA_DATA(omcasts)))) {
+ if (unlikely(!ifm->st_packets)) {
+ ifm->st_packets = rrdset_create_localhost("net_packets",
+ ifa->ifa_name,
+ NULL,
+ ifa->ifa_name,
+ "net.packets",
+ "Packets",
+ "packets/s",
+ 7001,
+ update_every,
+ RRDSET_TYPE_LINE
+ );
+
+ rrdset_flag_set(ifm->st_packets, RRDSET_FLAG_DETAIL);
+
+ ifm->rd_packets_in = rrddim_add(ifm->st_packets, "received", NULL, 1, 1,
+ RRD_ALGORITHM_INCREMENTAL);
+ ifm->rd_packets_out = rrddim_add(ifm->st_packets, "sent", NULL, -1, 1,
+ RRD_ALGORITHM_INCREMENTAL);
+ ifm->rd_packets_m_in = rrddim_add(ifm->st_packets, "multicast_received", NULL, 1, 1,
+ RRD_ALGORITHM_INCREMENTAL);
+ ifm->rd_packets_m_out = rrddim_add(ifm->st_packets, "multicast_sent", NULL, -1, 1,
+ RRD_ALGORITHM_INCREMENTAL);
+ } else
+ rrdset_next(ifm->st_packets);
+
+ rrddim_set_by_pointer(ifm->st_packets, ifm->rd_packets_in, IFA_DATA(ipackets));
+ rrddim_set_by_pointer(ifm->st_packets, ifm->rd_packets_out, IFA_DATA(opackets));
+ rrddim_set_by_pointer(ifm->st_packets, ifm->rd_packets_m_in, IFA_DATA(imcasts));
+ rrddim_set_by_pointer(ifm->st_packets, ifm->rd_packets_m_out, IFA_DATA(omcasts));
+ rrdset_done(ifm->st_packets);
+ }
+
+ // --------------------------------------------------------------------
+
+ if (ifm->do_errors == CONFIG_BOOLEAN_YES || (ifm->do_errors == CONFIG_BOOLEAN_AUTO &&
+ (IFA_DATA(ierrors) || IFA_DATA(oerrors)))) {
+ if (unlikely(!ifm->st_errors)) {
+ ifm->st_errors = rrdset_create_localhost("net_errors",
+ ifa->ifa_name,
+ NULL,
+ ifa->ifa_name,
+ "net.errors",
+ "Interface Errors",
+ "errors/s",
+ 7002,
+ update_every,
+ RRDSET_TYPE_LINE
+ );
+
+ rrdset_flag_set(ifm->st_errors, RRDSET_FLAG_DETAIL);
+
+ ifm->rd_errors_in = rrddim_add(ifm->st_errors, "inbound", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
+ ifm->rd_errors_out = rrddim_add(ifm->st_errors, "outbound", NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL);
+ } else
+ rrdset_next(ifm->st_errors);
+
+ rrddim_set_by_pointer(ifm->st_errors, ifm->rd_errors_in, IFA_DATA(ierrors));
+ rrddim_set_by_pointer(ifm->st_errors, ifm->rd_errors_out, IFA_DATA(oerrors));
+ rrdset_done(ifm->st_errors);
+ }
+ // --------------------------------------------------------------------
+
+ if (ifm->do_drops == CONFIG_BOOLEAN_YES || (ifm->do_drops == CONFIG_BOOLEAN_AUTO &&
+ (IFA_DATA(iqdrops)
+ #if __FreeBSD__ >= 11
+ || IFA_DATA(oqdrops)
+#endif
+ ))) {
+ if (unlikely(!ifm->st_drops)) {
+ ifm->st_drops = rrdset_create_localhost("net_drops",
+ ifa->ifa_name,
+ NULL,
+ ifa->ifa_name,
+ "net.drops",
+ "Interface Drops",
+ "drops/s",
+ 7003,
+ update_every,
+ RRDSET_TYPE_LINE
+ );
+
+ rrdset_flag_set(ifm->st_drops, RRDSET_FLAG_DETAIL);
+
+ ifm->rd_drops_in = rrddim_add(ifm->st_drops, "inbound", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
+#if __FreeBSD__ >= 11
+ ifm->rd_drops_out = rrddim_add(ifm->st_drops, "outbound", NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL);
+#endif
+ } else
+ rrdset_next(ifm->st_drops);
+
+ rrddim_set_by_pointer(ifm->st_drops, ifm->rd_drops_in, IFA_DATA(iqdrops));
+#if __FreeBSD__ >= 11
+ rrddim_set_by_pointer(ifm->st_drops, ifm->rd_drops_out, IFA_DATA(oqdrops));
+#endif
+ rrdset_done(ifm->st_drops);
+ }
+
+ // --------------------------------------------------------------------
+
+ if (ifm->do_events == CONFIG_BOOLEAN_YES || (ifm->do_events == CONFIG_BOOLEAN_AUTO &&
+ IFA_DATA(collisions))) {
+ if (unlikely(!ifm->st_events)) {
+ ifm->st_events = rrdset_create_localhost("net_events",
+ ifa->ifa_name,
+ NULL,
+ ifa->ifa_name,
+ "net.events",
+ "Network Interface Events",
+ "events/s",
+ 7006,
+ update_every,
+ RRDSET_TYPE_LINE
+ );
+
+ rrdset_flag_set(ifm->st_events, RRDSET_FLAG_DETAIL);
+
+ ifm->rd_events_coll = rrddim_add(ifm->st_events, "collisions", NULL, -1, 1,
+ RRD_ALGORITHM_INCREMENTAL);
+ } else
+ rrdset_next(ifm->st_events);
+
+ rrddim_set_by_pointer(ifm->st_events, ifm->rd_events_coll, IFA_DATA(collisions));
+ rrdset_done(ifm->st_events);
+ }
+ }
+
+ freeifaddrs(ifap);
+ }
+ } else {
+ error("DISABLED: getifaddrs module");
+ return 1;
+ }
+
+ network_interfaces_cleanup();
+
+ return 0;
+}