diff options
author | Stelios Fragkakis <52996999+stelfrag@users.noreply.github.com> | 2020-01-08 11:07:22 +0200 |
---|---|---|
committer | GitHub <noreply@github.com> | 2020-01-08 11:07:22 +0200 |
commit | 0c986ec9b1b0502f72e9051cab57a81bdb22398a (patch) | |
tree | e4b63c9320605ed9421f09f27a914416a9302acb /collectors | |
parent | 9bccf7afc97ff29e67a194df3bf10a219df01dcc (diff) |
network interface speed, duplex, operstate #5989 (#7395)
* - Read and process /sys/class/net/XXXX/duplex and /sys/class/net/XXXX/operstate
- Create custom variables duplex_state and operstate under the bandwidth chart
- Map states to numeric values
Duplex state (variable duplex_state)
0 = unknown
1 = half duplex
2 = full duplex
Operstate status map (variable operstate)
0 = unknown
1 = notpresent
2 = down
3 = lowerlayerdown
4 = testing
5 = dormant
6 = up
* - Fix array size element count!
- Return int value
- Fix casting warning
* - Variable rename duplex_state to duplex
* - Move the variable definition out of the loop
Diffstat (limited to 'collectors')
-rw-r--r-- | collectors/proc.plugin/proc_net_dev.c | 132 |
1 files changed, 128 insertions, 4 deletions
diff --git a/collectors/proc.plugin/proc_net_dev.c b/collectors/proc.plugin/proc_net_dev.c index 8d9751d1c2..9bfb0597b8 100644 --- a/collectors/proc.plugin/proc_net_dev.c +++ b/collectors/proc.plugin/proc_net_dev.c @@ -5,6 +5,21 @@ #define PLUGIN_PROC_MODULE_NETDEV_NAME "/proc/net/dev" #define CONFIG_SECTION_PLUGIN_PROC_NETDEV "plugin:" PLUGIN_PROC_CONFIG_NAME ":" PLUGIN_PROC_MODULE_NETDEV_NAME +// As defined in https://www.kernel.org/doc/Documentation/ABI/testing/sysfs-class-net +const char *operstate_names[] = { "unknown", "notpresent", "down", "lowerlayerdown", "testing", "dormant", "up" }; + +static inline int get_operstate(char *operstate) +{ + int i; + + for (i = 0; i < (int) (sizeof(operstate_names) / sizeof(char *)); i++) { + if (!strcmp(operstate, operstate_names[i])) { + return i; + } + } + return 0; +} + // ---------------------------------------------------------------------------- // netdev list @@ -67,6 +82,8 @@ static struct netdev { kernel_uint_t tcarrier; kernel_uint_t tcompressed; kernel_uint_t speed; + kernel_uint_t duplex; + kernel_uint_t operstate; // charts RRDSET *st_bandwidth; @@ -97,9 +114,18 @@ static struct netdev { RRDDIM *rd_tcompressed; usec_t speed_last_collected_usec; + usec_t duplex_last_collected_usec; + usec_t operstate_last_collected_usec; + char *filename_speed; RRDSETVAR *chart_var_speed; + char *filename_duplex; + RRDSETVAR *chart_var_duplex; + + char *filename_operstate; + RRDSETVAR *chart_var_operstate; + struct netdev *next; } *netdev_root = NULL, *netdev_last_used = NULL; @@ -169,11 +195,12 @@ static void netdev_free(struct netdev *d) { freez((void *)d->name); freez((void *)d->filename_speed); + freez((void *)d->filename_duplex); + freez((void *)d->filename_operstate); freez((void *)d); netdev_added--; } - // ---------------------------------------------------------------------------- // netdev renames @@ -439,9 +466,15 @@ int do_proc_net_dev(int update_every, usec_t dt) { static SIMPLE_PATTERN *disabled_list = NULL; static procfile *ff = NULL; static int enable_new_interfaces = -1; - static int do_bandwidth = -1, do_packets = -1, do_errors = -1, do_drops = -1, do_fifo = -1, do_compressed = -1, do_events = -1; - static char *path_to_sys_devices_virtual_net = NULL, *path_to_sys_class_net_speed = NULL, *proc_net_dev_filename = NULL; + static int do_bandwidth = -1, do_packets = -1, do_errors = -1, do_drops = -1, do_fifo = -1, do_compressed = -1, + do_events = -1; + static char *path_to_sys_devices_virtual_net = NULL, *path_to_sys_class_net_speed = NULL, + *proc_net_dev_filename = NULL; + static char *path_to_sys_class_net_duplex = NULL; + static char *path_to_sys_class_net_operstate = NULL; static long long int dt_to_refresh_speed = 0; + static long long int dt_to_refresh_duplex = 0; + static long long int dt_to_refresh_operstate = 0; if(unlikely(enable_new_interfaces == -1)) { char filename[FILENAME_MAX + 1]; @@ -455,6 +488,13 @@ int do_proc_net_dev(int update_every, usec_t dt) { snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, "/sys/class/net/%s/speed"); path_to_sys_class_net_speed = config_get(CONFIG_SECTION_PLUGIN_PROC_NETDEV, "path to get net device speed", filename); + snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, "/sys/class/net/%s/duplex"); + path_to_sys_class_net_duplex = config_get(CONFIG_SECTION_PLUGIN_PROC_NETDEV, "path to get net device duplex", filename); + + snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, "/sys/class/net/%s/operstate"); + path_to_sys_class_net_operstate = config_get(CONFIG_SECTION_PLUGIN_PROC_NETDEV, "path to get net device operstate", filename); + + enable_new_interfaces = config_get_boolean_ondemand(CONFIG_SECTION_PLUGIN_PROC_NETDEV, "enable new interfaces detected at runtime", CONFIG_BOOLEAN_AUTO); do_bandwidth = config_get_boolean_ondemand(CONFIG_SECTION_PLUGIN_PROC_NETDEV, "bandwidth for all interfaces", CONFIG_BOOLEAN_AUTO); @@ -468,7 +508,15 @@ int do_proc_net_dev(int update_every, usec_t dt) { disabled_list = simple_pattern_create(config_get(CONFIG_SECTION_PLUGIN_PROC_NETDEV, "disable by default interfaces matching", "lo fireqos* *-ifb"), NULL, SIMPLE_PATTERN_EXACT); dt_to_refresh_speed = config_get_number(CONFIG_SECTION_PLUGIN_PROC_NETDEV, "refresh interface speed every seconds", 10) * USEC_PER_SEC; - if(dt_to_refresh_speed < 0) dt_to_refresh_speed = 0; + dt_to_refresh_duplex = config_get_number(CONFIG_SECTION_PLUGIN_PROC_NETDEV, "refresh interface duplex every seconds", 10) * USEC_PER_SEC; + dt_to_refresh_operstate = config_get_number(CONFIG_SECTION_PLUGIN_PROC_NETDEV, "refresh interface operstate every seconds", 10) * USEC_PER_SEC; + + if (dt_to_refresh_operstate < 0) + dt_to_refresh_operstate = 0; + if (dt_to_refresh_duplex < 0) + dt_to_refresh_duplex = 0; + if (dt_to_refresh_speed < 0) + dt_to_refresh_speed = 0; } if(unlikely(!ff)) { @@ -525,6 +573,12 @@ int do_proc_net_dev(int update_every, usec_t dt) { // set the filename to get the interface speed snprintfz(buffer, FILENAME_MAX, path_to_sys_class_net_speed, d->name); d->filename_speed = strdupz(buffer); + + snprintfz(buffer, FILENAME_MAX, path_to_sys_class_net_duplex, d->name); + d->filename_duplex = strdupz(buffer); + + snprintfz(buffer, FILENAME_MAX, path_to_sys_class_net_operstate, d->name); + d->filename_operstate = strdupz(buffer); } snprintfz(buffer, FILENAME_MAX, "plugin:proc:/proc/net/dev:%s", d->name); @@ -668,6 +722,76 @@ int do_proc_net_dev(int update_every, usec_t dt) { } } } + + if (d->filename_duplex) { + d->duplex_last_collected_usec += dt; + + if (unlikely(d->duplex_last_collected_usec >= (usec_t)dt_to_refresh_duplex)) { + if (unlikely(!d->chart_var_duplex)) { + d->chart_var_duplex = rrdsetvar_custom_chart_variable_create(d->st_bandwidth, "duplex"); + if (!d->chart_var_duplex) { + error("Cannot create interface %s chart variable 'duplex'. Will not update the duplex status anymore.", d->name); + freez(d->filename_duplex); + d->filename_duplex = NULL; + } + } + + if (d->filename_duplex && d->chart_var_duplex) { + char buffer[32 + 1]; + + if (read_file(d->filename_duplex, buffer, 32)) { + error("Cannot refresh interface %s duplex state by reading '%s'. I will stop updating it.", d->name, d->filename_duplex); + freez(d->filename_duplex); + d->filename_duplex = NULL; + } else { + // values can be unknown, half or full -- just check the first letter for speed + if (buffer[0] == 'f') + d->duplex = 2; + else if (buffer[0] == 'h') + d->duplex = 1; + else + d->duplex = 0; + + rrdsetvar_custom_chart_variable_set(d->chart_var_duplex, (calculated_number)d->duplex); + d->duplex_last_collected_usec = 0; + } + } + } + } + + if (d->filename_operstate) { + d->operstate_last_collected_usec += dt; + + if (unlikely(d->operstate_last_collected_usec >= (usec_t)dt_to_refresh_operstate)) { + if (unlikely(!d->chart_var_operstate)) { + d->chart_var_operstate = rrdsetvar_custom_chart_variable_create(d->st_bandwidth, "operstate"); + if (!d->chart_var_operstate) { + error( + "Cannot create interface %s chart variable 'operstate'. I will stop updating it.", + d->name); + freez(d->filename_operstate); + d->filename_operstate = NULL; + } + } + + if (d->filename_operstate && d->chart_var_operstate) { + char buffer[32 + 1], *trimmed_buffer; + + if (read_file(d->filename_operstate, buffer, 32)) { + error( + "Cannot refresh %s operstate by reading '%s'. Will not update its status anymore.", + d->name, d->filename_operstate); + freez(d->filename_operstate); + d->filename_operstate = NULL; + } else { + trimmed_buffer = trim(buffer); + d->operstate = get_operstate(trimmed_buffer); + rrdsetvar_custom_chart_variable_set(d->chart_var_operstate, (calculated_number)d->operstate); + d->operstate_last_collected_usec = 0; + } + } + } + } } // -------------------------------------------------------------------- |