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freebsd_getifaddrs.c
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freebsd_getifaddrs.c
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// SPDX-License-Identifier: GPL-3.0-or-later
#include "plugin_freebsd.h"
#include <ifaddrs.h>
struct cgroup_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 cgroup_network_interface *next;
};
static struct cgroup_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 cgroup_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 cgroup_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 cgroup_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 cgroup_network_interface *get_network_interface(const char *name) {
struct cgroup_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 cgroup_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 cgroup_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 DEFAULT_EXLUDED_INTERFACES "lo*"
#define DEFAULT_PHYSICAL_INTERFACES "igb* ix* cxl* em* ixl* ixlv* bge* ixgbe* vtnet* vmx*"
#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_bandwidth_net = -1, do_packets_net = -1,
do_errors = -1, do_drops = -1, do_events = -1;
static SIMPLE_PATTERN *excluded_interfaces = NULL, *physical_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_net = config_get_boolean_ondemand(CONFIG_SECTION_GETIFADDRS, "total bandwidth for physical interfaces",
CONFIG_BOOLEAN_AUTO);
do_packets_net = config_get_boolean_ondemand(CONFIG_SECTION_GETIFADDRS, "total packets for physical interfaces",
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", DEFAULT_EXLUDED_INTERFACES)
, NULL
, SIMPLE_PATTERN_EXACT
);
physical_interfaces = simple_pattern_create(
config_get(CONFIG_SECTION_GETIFADDRS, "set physical interfaces for system.net", DEFAULT_PHYSICAL_INTERFACES)
, NULL
, SIMPLE_PATTERN_EXACT
);
}
if (likely(do_bandwidth_ipv4 || do_bandwidth_ipv6 || do_bandwidth || do_packets || do_errors || do_bandwidth_net || do_packets_net ||
do_drops || do_events)) {
struct ifaddrs *ifap;
if (unlikely(getifaddrs(&ifap))) {
error("FREEBSD: getifaddrs() failed");
do_bandwidth_net = 0;
error("DISABLED: system.net chart");
do_packets_net = 0;
error("DISABLED: system.packets chart");
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;
u_long ift_ipackets;
u_long ift_opackets;
u_long ift_imcasts;
u_long ift_omcasts;
} iftot = {0, 0, 0, 0, 0, 0};
// --------------------------------------------------------------------
if (likely(do_bandwidth_net)) {
iftot.ift_ibytes = iftot.ift_obytes = 0;
for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
if (ifa->ifa_addr->sa_family != AF_LINK)
continue;
if (!simple_pattern_matches(physical_interfaces, ifa->ifa_name))
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",
"net",
NULL,
"network",
NULL,
"Network Traffic",
"kilobits/s",
"freebsd.plugin",
"getifaddrs",
NETDATA_CHART_PRIO_SYSTEM_NET,
update_every,
RRDSET_TYPE_AREA
);
rd_in = rrddim_add(st, "InOctets", "received", 8, BITS_IN_A_KILOBIT, RRD_ALGORITHM_INCREMENTAL);
rd_out = rrddim_add(st, "OutOctets", "sent", -8, BITS_IN_A_KILOBIT, 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_packets_net)) {
iftot.ift_ipackets = iftot.ift_opackets = iftot.ift_imcasts = iftot.ift_omcasts = 0;
for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
if (ifa->ifa_addr->sa_family != AF_LINK)
continue;
if (!simple_pattern_matches(physical_interfaces, ifa->ifa_name))
continue;
iftot.ift_ipackets += IFA_DATA(ipackets);
iftot.ift_opackets += IFA_DATA(opackets);
iftot.ift_imcasts += IFA_DATA(imcasts);
iftot.ift_omcasts += IFA_DATA(omcasts);
}
static RRDSET *st = NULL;
static RRDDIM *rd_packets_in = NULL, *rd_packets_out = NULL, *rd_packets_m_in = NULL, *rd_packets_m_out = NULL;
if (unlikely(!st)) {
st = rrdset_create_localhost("system",
"packets",
NULL,
"network",
NULL,
"Network Packets",
"packets/s",
"freebsd.plugin",
"getifaddrs",
NETDATA_CHART_PRIO_SYSTEM_PACKETS,
update_every,
RRDSET_TYPE_LINE
);
rrdset_flag_set(st, RRDSET_FLAG_DETAIL);
rd_packets_in = rrddim_add(st, "received", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
rd_packets_out = rrddim_add(st, "sent", NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL);
rd_packets_m_in = rrddim_add(st, "multicast_received", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
rd_packets_m_out = rrddim_add(st, "multicast_sent", NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL);
} else
rrdset_next(st);
rrddim_set_by_pointer(st, rd_packets_in, iftot.ift_ipackets);
rrddim_set_by_pointer(st, rd_packets_out, iftot.ift_opackets);
rrddim_set_by_pointer(st, rd_packets_m_in, iftot.ift_imcasts);
rrddim_set_by_pointer(st, rd_packets_m_out, iftot.ift_omcasts);
rrdset_done(st);
}
// --------------------------------------------------------------------
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",
"freebsd.plugin",
"getifaddrs",
NETDATA_CHART_PRIO_SYSTEM_IPV4,
update_every,
RRDSET_TYPE_AREA
);
rd_in = rrddim_add(st, "InOctets", "received", 8, BITS_IN_A_KILOBIT, RRD_ALGORITHM_INCREMENTAL);
rd_out = rrddim_add(st, "OutOctets", "sent", -8, BITS_IN_A_KILOBIT, 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",
"freebsd.plugin",
"getifaddrs",
NETDATA_CHART_PRIO_SYSTEM_IPV6,
update_every,
RRDSET_TYPE_AREA
);
rd_in = rrddim_add(st, "received", NULL, 8, BITS_IN_A_KILOBIT, RRD_ALGORITHM_INCREMENTAL);
rd_out = rrddim_add(st, "sent", NULL, -8, BITS_IN_A_KILOBIT, 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 cgroup_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) ||
netdata_zero_metrics_enabled == CONFIG_BOOLEAN_YES))) {
if (unlikely(!ifm->st_bandwidth)) {
ifm->st_bandwidth = rrdset_create_localhost("net",
ifa->ifa_name,
NULL,
ifa->ifa_name,
"net.net",
"Bandwidth",
"kilobits/s",
"freebsd.plugin",
"getifaddrs",
NETDATA_CHART_PRIO_FIRST_NET_IFACE,
update_every,
RRDSET_TYPE_AREA
);
ifm->rd_bandwidth_in = rrddim_add(ifm->st_bandwidth, "received", NULL, 8, BITS_IN_A_KILOBIT, RRD_ALGORITHM_INCREMENTAL);
ifm->rd_bandwidth_out = rrddim_add(ifm->st_bandwidth, "sent", NULL, -8, BITS_IN_A_KILOBIT, 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) ||
netdata_zero_metrics_enabled == CONFIG_BOOLEAN_YES))) {
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",
"freebsd.plugin",
"getifaddrs",
NETDATA_CHART_PRIO_FIRST_NET_PACKETS,
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) ||
netdata_zero_metrics_enabled == CONFIG_BOOLEAN_YES))) {
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",
"freebsd.plugin",
"getifaddrs",
NETDATA_CHART_PRIO_FIRST_NET_ERRORS,
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
netdata_zero_metrics_enabled == CONFIG_BOOLEAN_YES))) {
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",
"freebsd.plugin",
"getifaddrs",
NETDATA_CHART_PRIO_FIRST_NET_DROPS,
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) ||
netdata_zero_metrics_enabled == CONFIG_BOOLEAN_YES))) {
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",
"freebsd.plugin",
"getifaddrs",
NETDATA_CHART_PRIO_FIRST_NET_EVENTS,
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;
}