diff options
Diffstat (limited to 'src/proc_net_dev.c')
| -rw-r--r-- | src/proc_net_dev.c | 426 |
1 files changed, 370 insertions, 56 deletions
diff --git a/src/proc_net_dev.c b/src/proc_net_dev.c index ee758899..6e12fc5d 100644 --- a/src/proc_net_dev.c +++ b/src/proc_net_dev.c @@ -1,6 +1,9 @@ #include "common.h" -struct netdev { +// ---------------------------------------------------------------------------- +// netdev list + +static struct netdev { char *name; uint32_t hash; size_t len; @@ -18,6 +21,27 @@ struct netdev { int do_compressed; int do_events; + const char *chart_type_net_bytes; + const char *chart_type_net_packets; + const char *chart_type_net_errors; + const char *chart_type_net_fifo; + const char *chart_type_net_events; + const char *chart_type_net_drops; + const char *chart_type_net_compressed; + + const char *chart_id_net_bytes; + const char *chart_id_net_packets; + const char *chart_id_net_errors; + const char *chart_id_net_fifo; + const char *chart_id_net_events; + const char *chart_id_net_drops; + const char *chart_id_net_compressed; + + const char *chart_family; + + int flipped; + unsigned long priority; + // data collected kernel_uint_t rbytes; kernel_uint_t rpackets; @@ -66,13 +90,13 @@ struct netdev { RRDDIM *rd_tcompressed; struct netdev *next; -}; - -static struct netdev *netdev_root = NULL, *netdev_last_used = NULL; +} *netdev_root = NULL, *netdev_last_used = NULL; static size_t netdev_added = 0, netdev_found = 0; -static void netdev_free(struct netdev *d) { +// ---------------------------------------------------------------------------- + +static void netdev_charts_release(struct netdev *d) { if(d->st_bandwidth) rrdset_is_obsolete(d->st_bandwidth); if(d->st_packets) rrdset_is_obsolete(d->st_packets); if(d->st_errors) rrdset_is_obsolete(d->st_errors); @@ -81,11 +105,229 @@ static void netdev_free(struct netdev *d) { if(d->st_compressed) rrdset_is_obsolete(d->st_compressed); if(d->st_events) rrdset_is_obsolete(d->st_events); + d->st_bandwidth = NULL; + d->st_compressed = NULL; + d->st_drops = NULL; + d->st_errors = NULL; + d->st_events = NULL; + d->st_fifo = NULL; + d->st_packets = NULL; + + d->rd_rbytes = NULL; + d->rd_rpackets = NULL; + d->rd_rerrors = NULL; + d->rd_rdrops = NULL; + d->rd_rfifo = NULL; + d->rd_rframe = NULL; + d->rd_rcompressed = NULL; + d->rd_rmulticast = NULL; + + d->rd_tbytes = NULL; + d->rd_tpackets = NULL; + d->rd_terrors = NULL; + d->rd_tdrops = NULL; + d->rd_tfifo = NULL; + d->rd_tcollisions = NULL; + d->rd_tcarrier = NULL; + d->rd_tcompressed = NULL; +} + +static void netdev_free_strings(struct netdev *d) { + freez((void *)d->chart_type_net_bytes); + freez((void *)d->chart_type_net_compressed); + freez((void *)d->chart_type_net_drops); + freez((void *)d->chart_type_net_errors); + freez((void *)d->chart_type_net_events); + freez((void *)d->chart_type_net_fifo); + freez((void *)d->chart_type_net_packets); + + freez((void *)d->chart_id_net_bytes); + freez((void *)d->chart_id_net_compressed); + freez((void *)d->chart_id_net_drops); + freez((void *)d->chart_id_net_errors); + freez((void *)d->chart_id_net_events); + freez((void *)d->chart_id_net_fifo); + freez((void *)d->chart_id_net_packets); + + freez((void *)d->chart_family); +} + +static void netdev_free(struct netdev *d) { + netdev_charts_release(d); + netdev_free_strings(d); + + freez((void *)d->name); + freez((void *)d); netdev_added--; - freez(d->name); - freez(d); } + +// ---------------------------------------------------------------------------- +// netdev renames + +static struct netdev_rename { + const char *host_device; + uint32_t hash; + + const char *container_device; + const char *container_name; + + int processed; + + struct netdev_rename *next; +} *netdev_rename_root = NULL; + +static int netdev_pending_renames = 0; +static netdata_mutex_t netdev_rename_mutex = NETDATA_MUTEX_INITIALIZER; + +static struct netdev_rename *netdev_rename_find(const char *host_device, uint32_t hash) { + struct netdev_rename *r; + + for(r = netdev_rename_root; r ; r = r->next) + if(r->hash == hash && !strcmp(host_device, r->host_device)) + return r; + + return NULL; +} + +// other threads can call this function to register a rename to a netdev +void netdev_rename_device_add(const char *host_device, const char *container_device, const char *container_name) { + netdata_mutex_lock(&netdev_rename_mutex); + + uint32_t hash = simple_hash(host_device); + struct netdev_rename *r = netdev_rename_find(host_device, hash); + if(!r) { + r = callocz(1, sizeof(struct netdev_rename)); + r->host_device = strdupz(host_device); + r->container_device = strdupz(container_device); + r->container_name = strdupz(container_name); + r->hash = hash; + r->next = netdev_rename_root; + r->processed = 0; + netdev_rename_root = r; + netdev_pending_renames++; + info("CGROUP: registered network interface rename for '%s' as '%s' under '%s'", r->host_device, r->container_device, r->container_name); + } + else { + if(strcmp(r->container_device, container_device) != 0 || strcmp(r->container_name, container_name) != 0) { + freez((void *) r->container_device); + freez((void *) r->container_name); + + r->container_device = strdupz(container_device); + r->container_name = strdupz(container_name); + r->processed = 0; + netdev_pending_renames++; + info("CGROUP: altered network interface rename for '%s' as '%s' under '%s'", r->host_device, r->container_device, r->container_name); + } + } + + netdata_mutex_unlock(&netdev_rename_mutex); +} + +// other threads can call this function to delete a rename to a netdev +void netdev_rename_device_del(const char *host_device) { + netdata_mutex_lock(&netdev_rename_mutex); + + struct netdev_rename *r, *last = NULL; + + uint32_t hash = simple_hash(host_device); + for(r = netdev_rename_root; r ; last = r, r = r->next) { + if (r->hash == hash && !strcmp(host_device, r->host_device)) { + if (netdev_rename_root == r) + netdev_rename_root = r->next; + else if (last) + last->next = r->next; + + if(!r->processed) + netdev_pending_renames--; + + info("CGROUP: unregistered network interface rename for '%s' as '%s' under '%s'", r->host_device, r->container_device, r->container_name); + + freez((void *) r->host_device); + freez((void *) r->container_name); + freez((void *) r->container_device); + freez((void *) r); + break; + } + } + + netdata_mutex_unlock(&netdev_rename_mutex); +} + +static inline void netdev_rename_cgroup(struct netdev *d, struct netdev_rename *r) { + info("CGROUP: renaming network interface '%s' as '%s' under '%s'", r->host_device, r->container_device, r->container_name); + + netdev_charts_release(d); + netdev_free_strings(d); + + char buffer[RRD_ID_LENGTH_MAX + 1]; + + snprintfz(buffer, RRD_ID_LENGTH_MAX, "cgroup_%s", r->container_name); + d->chart_type_net_bytes = strdupz(buffer); + d->chart_type_net_compressed = strdupz(buffer); + d->chart_type_net_drops = strdupz(buffer); + d->chart_type_net_errors = strdupz(buffer); + d->chart_type_net_events = strdupz(buffer); + d->chart_type_net_fifo = strdupz(buffer); + d->chart_type_net_packets = strdupz(buffer); + + snprintfz(buffer, RRD_ID_LENGTH_MAX, "net_%s", r->container_device); + d->chart_id_net_bytes = strdupz(buffer); + + snprintfz(buffer, RRD_ID_LENGTH_MAX, "net_compressed_%s", r->container_device); + d->chart_id_net_compressed = strdupz(buffer); + + snprintfz(buffer, RRD_ID_LENGTH_MAX, "net_drops_%s", r->container_device); + d->chart_id_net_drops = strdupz(buffer); + + snprintfz(buffer, RRD_ID_LENGTH_MAX, "net_errors_%s", r->container_device); + d->chart_id_net_errors = strdupz(buffer); + + snprintfz(buffer, RRD_ID_LENGTH_MAX, "net_events_%s", r->container_device); + d->chart_id_net_events = strdupz(buffer); + + snprintfz(buffer, RRD_ID_LENGTH_MAX, "net_fifo_%s", r->container_device); + d->chart_id_net_fifo = strdupz(buffer); + + snprintfz(buffer, RRD_ID_LENGTH_MAX, "net_packets_%s", r->container_device); + d->chart_id_net_packets = strdupz(buffer); + + snprintfz(buffer, RRD_ID_LENGTH_MAX, "net %s", r->container_device); + d->chart_family = strdupz(buffer); + + d->priority = 43000; + d->flipped = 1; +} + +static inline void netdev_rename(struct netdev *d) { + struct netdev_rename *r = netdev_rename_find(d->name, d->hash); + if(unlikely(r && !r->processed)) { + netdev_rename_cgroup(d, r); + r->processed = 1; + netdev_pending_renames--; + } +} + +static inline void netdev_rename_lock(struct netdev *d) { + netdata_mutex_lock(&netdev_rename_mutex); + netdev_rename(d); + netdata_mutex_unlock(&netdev_rename_mutex); +} + +static inline void netdev_rename_all_lock(void) { + netdata_mutex_lock(&netdev_rename_mutex); + + struct netdev *d; + for(d = netdev_root; d ; d = d->next) + netdev_rename(d); + + netdev_pending_renames = 0; + netdata_mutex_unlock(&netdev_rename_mutex); +} + +// ---------------------------------------------------------------------------- +// netdev data collection + static void netdev_cleanup() { if(likely(netdev_found == netdev_added)) return; @@ -144,6 +386,28 @@ static struct netdev *get_netdev(const char *name) { d->name = strdupz(name); d->hash = simple_hash(d->name); d->len = strlen(d->name); + + d->chart_type_net_bytes = strdupz("net"); + d->chart_type_net_compressed = strdupz("net_compressed"); + d->chart_type_net_drops = strdupz("net_drops"); + d->chart_type_net_errors = strdupz("net_errors"); + d->chart_type_net_events = strdupz("net_events"); + d->chart_type_net_fifo = strdupz("net_fifo"); + d->chart_type_net_packets = strdupz("net_packets"); + + d->chart_id_net_bytes = strdupz(d->name); + d->chart_id_net_compressed = strdupz(d->name); + d->chart_id_net_drops = strdupz(d->name); + d->chart_id_net_errors = strdupz(d->name); + d->chart_id_net_events = strdupz(d->name); + d->chart_id_net_fifo = strdupz(d->name); + d->chart_id_net_packets = strdupz(d->name); + + d->chart_family = strdupz(d->name); + d->priority = 7000; + + netdev_rename_lock(d); + netdev_added++; // link it to the end @@ -176,9 +440,7 @@ int do_proc_net_dev(int update_every, usec_t dt) { do_compressed = config_get_boolean_ondemand("plugin:proc:/proc/net/dev", "compressed packets for all interfaces", CONFIG_BOOLEAN_AUTO); do_events = config_get_boolean_ondemand("plugin:proc:/proc/net/dev", "frames, collisions, carrier counters for all interfaces", CONFIG_BOOLEAN_AUTO); - disabled_list = simple_pattern_create( - config_get("plugin:proc:/proc/net/dev", "disable by default interfaces matching", "lo fireqos* *-ifb") - , SIMPLE_PATTERN_EXACT); + disabled_list = simple_pattern_create(config_get("plugin:proc:/proc/net/dev", "disable by default interfaces matching", "lo fireqos* *-ifb"), SIMPLE_PATTERN_EXACT); } if(unlikely(!ff)) { @@ -191,6 +453,10 @@ int do_proc_net_dev(int update_every, usec_t dt) { ff = procfile_readall(ff); if(unlikely(!ff)) return 0; // we return 0, so that we will retry to open it next time + // rename all the devices, if we have pending renames + if(unlikely(netdev_pending_renames)) + netdev_rename_all_lock(); + netdev_found = 0; size_t lines = procfile_lines(ff), l; @@ -220,13 +486,13 @@ int do_proc_net_dev(int update_every, usec_t dt) { if(d->enabled == CONFIG_BOOLEAN_NO) continue; - d->do_bandwidth = config_get_boolean_ondemand(var_name, "bandwidth", do_bandwidth); - d->do_packets = config_get_boolean_ondemand(var_name, "packets", do_packets); - d->do_errors = config_get_boolean_ondemand(var_name, "errors", do_errors); - d->do_drops = config_get_boolean_ondemand(var_name, "drops", do_drops); - d->do_fifo = config_get_boolean_ondemand(var_name, "fifo", do_fifo); + d->do_bandwidth = config_get_boolean_ondemand(var_name, "bandwidth", do_bandwidth); + d->do_packets = config_get_boolean_ondemand(var_name, "packets", do_packets); + d->do_errors = config_get_boolean_ondemand(var_name, "errors", do_errors); + d->do_drops = config_get_boolean_ondemand(var_name, "drops", do_drops); + d->do_fifo = config_get_boolean_ondemand(var_name, "fifo", do_fifo); d->do_compressed = config_get_boolean_ondemand(var_name, "compressed", do_compressed); - d->do_events = config_get_boolean_ondemand(var_name, "events", do_events); + d->do_events = config_get_boolean_ondemand(var_name, "events", do_events); } if(unlikely(!d->enabled)) @@ -278,20 +544,28 @@ int do_proc_net_dev(int update_every, usec_t dt) { if(unlikely(!d->st_bandwidth)) { d->st_bandwidth = rrdset_create_localhost( - "net" - , d->name + d->chart_type_net_bytes + , d->chart_id_net_bytes , NULL - , d->name + , d->chart_family , "net.net" , "Bandwidth" , "kilobits/s" - , 7000 + , d->priority , update_every , RRDSET_TYPE_AREA ); - d->rd_rbytes = rrddim_add(d->st_bandwidth, "received", NULL, 8, 1024, RRD_ALGORITHM_INCREMENTAL); - d->rd_tbytes = rrddim_add(d->st_bandwidth, "sent", NULL, -8, 1024, RRD_ALGORITHM_INCREMENTAL); + d->rd_rbytes = rrddim_add(d->st_bandwidth, "received", NULL, 8, BITS_IN_A_KILOBIT, RRD_ALGORITHM_INCREMENTAL); + d->rd_tbytes = rrddim_add(d->st_bandwidth, "sent", NULL, -8, BITS_IN_A_KILOBIT, RRD_ALGORITHM_INCREMENTAL); + + if(d->flipped) { + // flip receive/trasmit + + RRDDIM *td = d->rd_rbytes; + d->rd_rbytes = d->rd_tbytes; + d->rd_tbytes = td; + } } else rrdset_next(d->st_bandwidth); @@ -309,23 +583,31 @@ int do_proc_net_dev(int update_every, usec_t dt) { if(unlikely(!d->st_packets)) { d->st_packets = rrdset_create_localhost( - "net_packets" - , d->name + d->chart_type_net_packets + , d->chart_id_net_packets , NULL - , d->name + , d->chart_family , "net.packets" , "Packets" , "packets/s" - , 7001 + , d->priority + 1 , update_every , RRDSET_TYPE_LINE ); rrdset_flag_set(d->st_packets, RRDSET_FLAG_DETAIL); - d->rd_rpackets = rrddim_add(d->st_packets, "received", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL); - d->rd_tpackets = rrddim_add(d->st_packets, "sent", NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL); - d->rd_rmulticast = rrddim_add(d->st_packets, "multicast", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL); + d->rd_rpackets = rrddim_add(d->st_packets, "received", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL); + d->rd_tpackets = rrddim_add(d->st_packets, "sent", NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL); + d->rd_rmulticast = rrddim_add(d->st_packets, "multicast", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL); + + if(d->flipped) { + // flip receive/trasmit + + RRDDIM *td = d->rd_rpackets; + d->rd_rpackets = d->rd_tpackets; + d->rd_tpackets = td; + } } else rrdset_next(d->st_packets); @@ -344,22 +626,30 @@ int do_proc_net_dev(int update_every, usec_t dt) { if(unlikely(!d->st_errors)) { d->st_errors = rrdset_create_localhost( - "net_errors" - , d->name + d->chart_type_net_errors + , d->chart_id_net_errors , NULL - , d->name + , d->chart_family , "net.errors" , "Interface Errors" , "errors/s" - , 7002 + , d->priority + 2 , update_every , RRDSET_TYPE_LINE ); rrdset_flag_set(d->st_errors, RRDSET_FLAG_DETAIL); - d->rd_rerrors = rrddim_add(d->st_errors, "inbound", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL); + d->rd_rerrors = rrddim_add(d->st_errors, "inbound", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL); d->rd_terrors = rrddim_add(d->st_errors, "outbound", NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL); + + if(d->flipped) { + // flip receive/trasmit + + RRDDIM *td = d->rd_rerrors; + d->rd_rerrors = d->rd_terrors; + d->rd_terrors = td; + } } else rrdset_next(d->st_errors); @@ -377,22 +667,30 @@ int do_proc_net_dev(int update_every, usec_t dt) { if(unlikely(!d->st_drops)) { d->st_drops = rrdset_create_localhost( - "net_drops" - , d->name + d->chart_type_net_drops + , d->chart_id_net_drops , NULL - , d->name + , d->chart_family , "net.drops" , "Interface Drops" , "drops/s" - , 7003 + , d->priority + 3 , update_every , RRDSET_TYPE_LINE ); rrdset_flag_set(d->st_drops, RRDSET_FLAG_DETAIL); - d->rd_rdrops = rrddim_add(d->st_drops, "inbound", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL); + d->rd_rdrops = rrddim_add(d->st_drops, "inbound", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL); d->rd_tdrops = rrddim_add(d->st_drops, "outbound", NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL); + + if(d->flipped) { + // flip receive/trasmit + + RRDDIM *td = d->rd_rdrops; + d->rd_rdrops = d->rd_tdrops; + d->rd_tdrops = td; + } } else rrdset_next(d->st_drops); @@ -410,22 +708,30 @@ int do_proc_net_dev(int update_every, usec_t dt) { if(unlikely(!d->st_fifo)) { d->st_fifo = rrdset_create_localhost( - "net_fifo" - , d->name + d->chart_type_net_fifo + , d->chart_id_net_fifo , NULL - , d->name + , d->chart_family , "net.fifo" , "Interface FIFO Buffer Errors" , "errors" - , 7004 + , d->priority + 4 , update_every , RRDSET_TYPE_LINE ); rrdset_flag_set(d->st_fifo, RRDSET_FLAG_DETAIL); - d->rd_rfifo = rrddim_add(d->st_fifo, "receive", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL); + d->rd_rfifo = rrddim_add(d->st_fifo, "receive", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL); d->rd_tfifo = rrddim_add(d->st_fifo, "transmit", NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL); + + if(d->flipped) { + // flip receive/trasmit + + RRDDIM *td = d->rd_rfifo; + d->rd_rfifo = d->rd_tfifo; + d->rd_tfifo = td; + } } else rrdset_next(d->st_fifo); @@ -443,22 +749,30 @@ int do_proc_net_dev(int update_every, usec_t dt) { if(unlikely(!d->st_compressed)) { d->st_compressed = rrdset_create_localhost( - "net_compressed" - , d->name + d->chart_type_net_compressed + , d->chart_id_net_compressed , NULL - , d->name + , d->chart_family , "net.compressed" , "Compressed Packets" , "packets/s" - , 7005 + , d->priority + 5 , update_every , RRDSET_TYPE_LINE ); rrdset_flag_set(d->st_compressed, RRDSET_FLAG_DETAIL); - d->rd_rcompressed = rrddim_add(d->st_compressed, "received", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL); - d->rd_tcompressed = rrddim_add(d->st_compressed, "sent", NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL); + d->rd_rcompressed = rrddim_add(d->st_compressed, "received", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL); + d->rd_tcompressed = rrddim_add(d->st_compressed, "sent", NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL); + + if(d->flipped) { + // flip receive/trasmit + + RRDDIM *td = d->rd_rcompressed; + d->rd_rcompressed = d->rd_tcompressed; + d->rd_tcompressed = td; + } } else rrdset_next(d->st_compressed); @@ -476,23 +790,23 @@ int do_proc_net_dev(int update_every, usec_t dt) { if(unlikely(!d->st_events)) { d->st_events = rrdset_create_localhost( - "net_events" - , d->name + d->chart_type_net_events + , d->chart_id_net_events , NULL - , d->name + , d->chart_family , "net.events" , "Network Interface Events" , "events/s" - , 7006 + , d->priority + 6 , update_every , RRDSET_TYPE_LINE ); rrdset_flag_set(d->st_events, RRDSET_FLAG_DETAIL); - d->rd_rframe = rrddim_add(d->st_events, "frames", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL); + d->rd_rframe = rrddim_add(d->st_events, "frames", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL); d->rd_tcollisions = rrddim_add(d->st_events, "collisions", NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL); - d->rd_tcarrier = rrddim_add(d->st_events, "carrier", NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL); + d->rd_tcarrier = rrddim_add(d->st_events, "carrier", NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL); } else rrdset_next(d->st_events); |