diff options
Diffstat (limited to 'src/freebsd_getifaddrs.c')
| -rw-r--r-- | src/freebsd_getifaddrs.c | 494 |
1 files changed, 494 insertions, 0 deletions
diff --git a/src/freebsd_getifaddrs.c b/src/freebsd_getifaddrs.c new file mode 100644 index 00000000..7355fac9 --- /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; +} |