/*
* kernel userspace event delivery
*
* Copyright (C) 2004 Red Hat, Inc. All rights reserved.
* Copyright (C) 2004 Novell, Inc. All rights reserved.
* Copyright (C) 2004 IBM, Inc. All rights reserved.
*
* Licensed under the GNU GPL v2.
*
* Authors:
* Robert Love <rml@novell.com>
* Kay Sievers <kay.sievers@vrfy.org>
* Arjan van de Ven <arjanv@redhat.com>
* Greg Kroah-Hartman <greg@kroah.com>
*/
#include <linux/spinlock.h>
#include <linux/string.h>
#include <linux/kobject.h>
#include <linux/export.h>
#include <linux/kmod.h>
#include <linux/slab.h>
#include <linux/socket.h>
#include <linux/skbuff.h>
#include <linux/netlink.h>
#include <net/sock.h>
#include <net/net_namespace.h>
u64 uevent_seqnum;
#ifdef CONFIG_UEVENT_HELPER
char uevent_helper[UEVENT_HELPER_PATH_LEN] = CONFIG_UEVENT_HELPER_PATH;
#endif
#ifdef CONFIG_NET
struct uevent_sock {
struct list_head list;
struct sock *sk;
};
static LIST_HEAD(uevent_sock_list);
#endif
/* This lock protects uevent_seqnum and uevent_sock_list */
static DEFINE_MUTEX(uevent_sock_mutex);
/* the strings here must match the enum in include/linux/kobject.h */
static const char *kobject_actions[] = {
[KOBJ_ADD] = "add",
[KOBJ_REMOVE] = "remove",
[KOBJ_CHANGE] = "change",
[KOBJ_MOVE] = "move",
[KOBJ_ONLINE] = "online",
[KOBJ_OFFLINE] = "offline",
};
/**
* kobject_action_type - translate action string to numeric type
*
* @buf: buffer containing the action string, newline is ignored
* @len: length of buffer
* @type: pointer to the location to store the action type
*
* Returns 0 if the action string was recognized.
*/
int kobject_action_type(const char *buf, size_t count,
enum kobject_action *type)
{
enum kobject_action action;
int ret = -EINVAL;
if (count && (buf[count-1] == '\n' || buf[count-1] == '\0'))
count--;
if (!count)
goto out;
for (action = 0; action < ARRAY_SIZE(kobject_actions); action++) {
if (strncmp(kobject_actions[action], buf, count) != 0)
continue;
if (kobject_actions[action][count] != '\0')
continue;
*type = action;
ret = 0;
break;
}
out:
return ret;
}
#ifdef CONFIG_NET
static int kobj_bcast_filter(struct sock *dsk, struct sk_buff *skb, void *data)
{
struct kobject *kobj = data, *ksobj;
const struct kobj_ns_type_operations *ops;
ops = kobj_ns_ops(kobj);
if (!ops && kobj->kset) {
ksobj = &kobj->kset->kobj;
if (ksobj->parent != NULL)
ops = kobj_ns_ops(ksobj->parent);
}
if (ops && ops->netlink_ns && kobj->ktype->namespace) {
const void *sock_ns, *ns;
ns = kobj->ktype->namespace(kobj);
sock_ns = ops->netlink_ns(dsk);
return sock_ns != ns;
}
return 0;
}
#endif
#ifdef CONFIG_UEVENT_HELPER
static int kobj_usermode_filter(struct kobject *kobj)
{
const struct kobj_ns_type_operations *ops;
ops = kobj_ns_ops(kobj);
if (ops) {
const void *init_ns, *ns;
ns = kobj->ktype->namespace(kobj);
init_ns = ops->initial_ns();
return ns != init_ns;
}
return 0;
}
static int init_uevent_argv(struct kobj_uevent_env *env, const char *subsystem)
{
int len;
len = strlcpy(&env->buf[env->buflen], subsystem,
sizeof(env->buf) - env->buflen);
if (len >= (sizeof(env->buf) - env->{
"__inputs": [
{
"name": "DS_YARDSTICK",
"label": "yardstick",
"description": "",
"type": "datasource",
"pluginId": "influxdb",
"pluginName": "InfluxDB"
}
],
"__requires": [
{
"type": "grafana",
"id": "grafana",
"name": "Grafana",
"version": "4.4.3"
},
{
"type": "panel",
"id": "graph",
"name": "Graph",
"version": ""
},
{
"type": "datasource",
"id": "influxdb",
"name": "InfluxDB",
"version": "1.0.0"
},
{
"type": "panel",
"id": "text",
"name": "Text",
"version": ""
}
],
"annotations": {
"list": []
},
"editable": true,
"gnetId": null,
"graphTooltip": 0,
"hideControls": false,
"id": null,
"links": [],
"refresh": false,
"rows": [
{
"collapse": false,
"height": "100px",
"panels": [
{
"content": "<h5 style=\"font-family:Verdana\"> <a style=\"color:#31A7D3\"><a style=\"font: 32px '#31A7D3'\"><center>OPNFV_Yardstick_NSB_PROX_Heat_L2FWD_4Port_Test</center> </a></h5>\n<center>\n<p>The application does Port forwarding without touching packets. It will take packets in from one port and forward them unmodified to another port </p>\n<p>The KPI is the number of packets per second for a specified packet size with an accepted minimal packet loss </p>\n</center>",
"editable": true,
"error": false,
"id": 3,
"links": [],
"mode": "html",
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"type": "text"
},
{
"content": "<h5 style=\"font-family:Verdana\"> <a style=\"color:#31A7D3\"><a style=\"font: 22px '#31A7D3'\"><center>Prox L2Fwd VNF stats</center> </a></h5>\n",
"editable": true,
"error": false,
"height": "40",
"id": 7,
"links": [],
"mode": "html",
"span": 12,
"title": "",
"type": "text"
}
],
"repeat": null,
"repeatIteration": null,
"repeatRowId": null,
"showTitle": false,
"title": "Row",
"titleSize": "h6"
},
{
"collapse": false,
"height": "300px",
"panels": [
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": "${DS_YARDSTICK}",
"editable": true,
"error": false,
"fill": 1,
"grid": {},
"height": "300",
"id": 4,
"legend": {
"alignAsTable": true,
"avg": true,
"current": false,
"max": true,
"min": true,
"rightSide": false,
"show": true,
"total": false,
"values": true
},
"lines": true,
"linewidth": 2,
"links": [],
"nullPointMode": "connected",
"percentage": false,
"pointradius": 1,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"span": 12,
"stack": false,
"steppedLine": false,
"targets": [
{
"alias": "VNF packets Forward",
"dsType": "influxdb",
"groupBy": [
{
"params": [
"$interval"
],
"type": "time"
},
{
"params": [
"null"
],
"type": "fill"
}
],
"measurement": "tc_prox_heat_context_l2fwd-4",
"policy": "default",
"refId": "A",
"resultFormat": "time_series",
"select": [
[
{
"params": [
"vnf__0.packets_fwd"
],
"type": "field"
},
{
"params": [],
"type": "mean"
}
]
],
"tags": []
},
{
"alias": "VNF packets in",
"dsType": "influxdb",
"groupBy": [
{
"params": [
"$interval"
],
"type": "time"
},
{
"params": [
"null"
],
"type": "fill"
}
],
"measurement": "tc_prox_heat_context_l2fwd-4",
"policy": "default",
"refId": "C",
"resultFormat": "time_series",
"select": [
[
{
"params": [
"vnf__0.packets_in"
],
"type": "field"
},
{
"params": [],
"type": "mean"
}
]
],
"tags": []
},
{
"alias": "VNF packets dropped",
"dsType": "influxdb",
"groupBy": [
{
"params": [
"$interval"
],
"type": "time"
},
{
"params": [
"null"
],
"type": "fill"
}
],
"measurement": "tc_prox_heat_context_l2fwd-4",
"policy": "default",
"refId": "B",
"resultFormat": "time_series",
"select": [
[
{
"params": [
"vnf__0.packets_dropped"
],
"type": "field"
},
{
"params": [],
"type": "mean"
}
]
],
"tags": []
}
],
"thresholds": [
{
"colorMode": "custom",
"fill": true,
"fillColor": "rgba(216, 200, 27, 0.27)",
"op": "gt",
"value": 2
},
{
"colorMode": "custom",
"fill": true,
"fillColor": "rgba(234, 112, 112, 0.22)",
"op": "gt",
"value": 2
}
],
"timeFrom": null,
"timeShift": null,
"title": "L2Fwd VNF stats",
"tooltip": {
"msResolution": true,
"shared": true,
"sort": 0,
"value_type": "cumulative"
},
"type": "graph",
"xaxis": {
"buckets": null,
"mode": "time",
"name": null,
"show": true,
"values": []
},
"yaxes": [
{
"format": "short",
"label": "Packets",
"logBase": 1,
"max": null,
"min": null,
"show": true
},
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
}
]
},
{
"content": "<h5 style=\"font-family:Verdana\"> <a style=\"color:#31A7D3\"><a style=\"font: 22px '#31A7D3'\"><center>Prox L2Fwd Traffic Gen stats</center> </a></h5>\n",
"editable": true,
"error": false,
"height": "40",
"id": 8,
"links": [],
"mode": "html",
"span": 12,
"title": "",
"type": "text"
}
],
"repeat": null,
"repeatIteration": null,
"repeatRowId": null,
"showTitle": false,
"title": "New row",
"titleSize": "h6"
},
{
"collapse": false,
"height": "300px",
"panels": [
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": "${DS_YARDSTICK}",
"editable": true,
"error": false,
"fill": 1,
"grid": {},
"id": 6,
"legend": {
"alignAsTable": true,
"avg": true,
"current": false,
"max": true,
"min": true,
"show": true,
"total": false,
"values": true
},
"lines": true,
"linewidth": 2,
"links": [],
"nullPointMode": "connected",
"percentage": false,
"pointradius": 5,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"span": 6,
"stack": false,
"steppedLine": false,
"targets": [
{
"alias": "TG xe-0 Out packets",
"dsType": "influxdb",
"groupBy": [
{
"params": [
"$interval"
],
"type": "time"
},
{
"params": [
"null"
],
"type": "fill"
}
],
"measurement": "tc_prox_heat_context_l2fwd-4",
"orderByTime": "ASC",
"policy": "default",
"refId": "A",
"resultFormat": "time_series",
"select": [
[
{
"params": [
"tg__0.xe0.out_packets"
],
"type": "field"
},
{
"params": [],
"type": "mean"
}
]
],
"tags": []
},
{
"alias": "TG xe-1 Out packets",
"dsType": "influxdb",
"groupBy": [
{
"params": [
"$interval"
],
"type": "time"
},
{
"params": [
"null"
],
"type": "fill"
}
],
"measurement": "tc_prox_heat_context_l2fwd-4",
"orderByTime": "ASC",
"policy": "default",
"refId": "B",
"resultFormat": "time_series",
"select": [
[
{
"params": [
"tg__0.xe1.out_packets"
],
"type": "field"
},
{
"params": [],
"type": "mean"
}
]
],
"tags": []
},
{
"alias": "TG xe-2 Out packets",
"dsType": "influxdb",
"groupBy": [
{
"params": [
"$interval"
],
"type": "time"
},
{
"params": [
"null"
],
"type": "fill"
}
],
"measurement": "tc_prox_heat_context_l2fwd-4",
"orderByTime": "ASC",
"policy": "default",
"refId": "C",
"resultFormat": "time_series",
"select": [
[
{
"params": [
"tg__0.xe2.out_packets"
],
"type": "field"
},
{
"params": [],
"type": "mean"
}
]
],
"tags": []
},
{
"alias": "TG xe-3 Out packets",
"dsType": "influxdb",
"groupBy": [
{
"params": [
"$interval"
],
"type": "time"
},
{
"params": [
"null"
],
"type": "fill"
}
],
"measurement": "tc_prox_heat_context_l2fwd-4",
"orderByTime": "ASC",
"policy": "default",
"refId": "D",
"resultFormat": "time_series",
"select": [
[
{
"params": [
"tg__0.xe3.out_packets"
],
"type": "field"
},
{
"params": [],
"type": "mean"
}
]
],
"tags": []
}
],
"thresholds": [
{
"colorMode": "custom",
"fill": true,
"fillColor": "rgba(216, 200, 27, 0.27)",
"op": "gt",
"value": 2
},
{
"colorMode": "custom",
"fill": true,
"fillColor": "rgba(234, 112, 112, 0.22)",
"op": "gt",
"value": 2
}
],
"timeFrom": null,
"timeShift": null,
"title": "TG Port Stats: Out packets",
"tooltip": {
"msResolution": true,
"shared": true,
"sort": 0,
"value_type": "cumulative"
},
"type": "graph",
"xaxis": {
"buckets": null,
"mode": "time",
"name": null,
"show": true,
"values": []
},
"yaxes": [
{
"format": "short",
"label": "Packets",
"logBase": 1,
"max": null,
"min": null,
"show": true
},
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
}
]
},
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": "${DS_YARDSTICK}",
"editable": true,
"error": false,
"fill": 1,
"grid": {},
"id": 9,
"legend": {
"alignAsTable": true,
"avg": true,
"current": false,
"max": true,
"min": true,
"show": true,
"total": false,
"values": true
},
"lines": true,
"linewidth": 2,
"links": [],
"nullPointMode": "connected",
"percentage": false,
"pointradius": 5,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"span": 6,
"stack": false,
"steppedLine": false,
"targets": [
{
"alias": "TG xe-0 in packets",
"dsType": "influxdb",
"groupBy": [
{
"params": [
"$interval"
],
"type": "time"
},
{
"params": [
"null"
],
"type": "fill"
}
],
"measurement": "tc_prox_heat_context_l2fwd-4",
"orderByTime": "ASC",
"policy": "default",
"refId": "A",
"resultFormat": "time_series",
"select": [
[
{
"params": [
"tg__0.xe0.in_packets"
],
"type": "field"
},
{
"params": [],
"type": "mean"
}
]
],
"tags": []
},
{
"alias": "TG xe-1 in packets",
"dsType": "influxdb",
"groupBy": [
{
"params": [
"$interval"
],
"type": "time"
},
{
"params": [
"null"
],
"type": "fill"
}
],
"measurement": "tc_prox_heat_context_l2fwd-4",
"orderByTime": "ASC",
"policy": "default",
"refId": "B",
"resultFormat": "time_series",
"select": [
[
{
"params": [
"tg__0.xe1.in_packets"
],
"type": "field"
},
{
"params": [],
"type": "mean"
}
]
],
"tags": []
},
{
"alias": "TG xe-2 in packets",
"dsType": "influxdb",
"groupBy": [
{
"params": [
"$interval"
],
"type": "time"
},
{
"params": [
"null"
],
"type": "fill"
}
],
"measurement": "tc_prox_heat_context_l2fwd-4",
"orderByTime": "ASC",
"policy": "default",
"refId": "C",
"resultFormat": "time_series",
"select": [
[
{
"params": [
"tg__0.xe2.in_packets"
],
"type": "field"
},
{
"params": [],
"type": "mean"
}
]
],
"tags": []
},
{
"alias": "TG xe-3 in packets",
"dsType": "influxdb",
"groupBy": [
{
"params": [
"$interval"
],
"type": "time"
},
{
"params": [
"null"
],
"type": "fill"
}
],
"measurement": "tc_prox_heat_context_l2fwd-4",
"orderByTime": "ASC",
"policy": "default",
"refId": "D",
"resultFormat": "time_series",
"select": [
[
{
"params": [
"tg__0.xe3.in_packets"
],
"type": "field"
},
{
"params": [],
"type": "mean"
}
]
],
"tags": []
}
],
"thresholds": [
{
"colorMode": "custom",
"fill": true,
"fillColor": "rgba(216, 200, 27, 0.27)",
"op": "gt",
"value": 2
},
{
"colorMode": "custom",
"fill": true,
"fillColor": "rgba(234, 112, 112, 0.22)",
"op": "gt",
"value": 2
}
],
"timeFrom": null,
"timeShift": null,
"title": "TG Port Stats: In packets",
"tooltip": {
"msResolution": true,
"shared": true,
"sort": 0,
"value_type": "cumulative"
},
"type": "graph",
"xaxis": {
"buckets": null,
"mode": "time",
"name": null,
"show": true,
"values": []
},
"yaxes": [
{
"format": "short",
"label": "Packets",
"logBase": 1,
"max": null,
"min": null,
"show": true
},
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
}
]
}
],
"repeat": null,
"repeatIteration": null,
"repeatRowId": null,
"showTitle": false,
"title": "New row",
"titleSize": "h6"
},
{
"collapse": false,
"height": "250px",
"panels": [
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": "${DS_YARDSTICK}",
"editable": true,
"error": false,
"fill": 1,
"grid": {},
"id": 2,
"legend": {
"alignAsTable": true,
"avg": true,
"current": false,
"max": true,
"min": true,
"show": true,
"total": false,
"values": true
},
"lines": true,
"linewidth": 2,
"links": [],
"nullPointMode": "connected",
"percentage": false,
"pointradius": 5,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"span": 6,
"stack": false,
"steppedLine": false,
"targets": [
{
"alias": "TG TX Throughput",
"dsType": "influxdb",
"groupBy": [
{
"params": [
"$interval"
],
"type": "time"
},
{
"params": [
"null"
],
"type": "fill"
}
],
"measurement": "tc_prox_heat_context_l2fwd-4",
"orderByTime": "ASC",
"policy": "default",
"refId": "A",
"resultFormat": "time_series",
"select": [
[
{
"params": [
"tg__0.TxThroughput"
],
"type": "field"
},
{
"params": [],
"type": "mean"
}
]
],
"tags": []
},
{
"alias": "TG RX Throughput",
"dsType": "influxdb",
"groupBy": [
{
"params": [
"$interval"
],
"type": "time"
},
{
"params": [
"null"
],
"type": "fill"
}
],
"measurement": "tc_prox_heat_context_l2fwd-4",
"orderByTime": "ASC",
"policy": "default",
"refId": "B",
"resultFormat": "time_series",
"select": [
[
{
"params": [
"tg__0.RxThroughput"
],
"type": "field"
},
{
"params": [],
"type": "mean"
}
]
],
"tags": []
}
],
"thresholds": [
{
"colorMode": "custom",
"fill": true,
"fillColor": "rgba(216, 200, 27, 0.27)",
"op": "gt",
"value": 2
},
{
"colorMode": "custom",
"fill": true,
"fillColor": "rgba(234, 112, 112, 0.22)",
"op": "gt",
"value": 2
}
],
"timeFrom": null,
"timeShift": null,
"title": "TG Tx vs Rx Throughput",
"tooltip": {
"msResolution": true,
"shared": true,
"sort": 0,
"value_type": "cumulative"
},
"type": "graph",
"xaxis": {
"buckets": null,
"mode": "time",
"name": null,
"show": true,
"values": []
},
"yaxes": [
{
"format": "short",
"label": "Throughput in MPPS",
"logBase": 1,
"max": null,
"min": null,
"show": true
},
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
}
]
},
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": "${DS_YARDSTICK}",
"editable": true,
"error": false,
"fill": 1,
"grid": {},
"id": 5,
"legend": {
"alignAsTable": true,
"avg": true,
"current": false,
"max": true,
"min": true,
"show": true,
"total": false,
"values": true
},
"lines": true,
"linewidth": 2,
"links": [],
"nullPointMode": "connected",
"percentage": false,
"pointradius": 5,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"span": 6,
"stack": false,
"steppedLine": false,
"targets": [
{
"alias": "Packet Size",
"dsType": "influxdb",
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}
