/**
* collectd - src/netlink.c
* Copyright (C) 2007-2010 Florian octo Forster
+ * Copyright (C) 2008-2012 Sebastian Harl
+ * Copyright (C) 2013 Andreas Henriksson
+ * Copyright (C) 2013 Marc Fournier
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
*
* Authors:
* Florian octo Forster <octo at collectd.org>
+ * Sebastian Harl <sh at tokkee.org>
+ * Andreas Henriksson <andreas at fatal.se>
+ * Marc Fournier <marc.fournier at camptocamp.com>
**/
#include "collectd.h"
-#include "plugin.h"
+
#include "common.h"
+#include "plugin.h"
#include <asm/types.h>
-#include <sys/socket.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#if HAVE_LINUX_GEN_STATS_H
-# include <linux/gen_stats.h>
+#include <linux/gen_stats.h>
#endif
#if HAVE_LINUX_PKT_SCHED_H
-# include <linux/pkt_sched.h>
+#include <linux/pkt_sched.h>
#endif
-#if HAVE_LIBNETLINK_H
-# include <libnetlink.h>
-#elif HAVE_IPROUTE_LIBNETLINK_H
-# include <iproute/libnetlink.h>
-#elif HAVE_LINUX_LIBNETLINK_H
-# include <linux/libnetlink.h>
+#include <libmnl/libmnl.h>
+
+struct ir_link_stats_storage_s {
+
+ uint64_t rx_packets;
+ uint64_t tx_packets;
+ uint64_t rx_bytes;
+ uint64_t tx_bytes;
+ uint64_t rx_errors;
+ uint64_t tx_errors;
+
+ uint64_t rx_dropped;
+ uint64_t tx_dropped;
+ uint64_t multicast;
+ uint64_t collisions;
+
+ uint64_t rx_length_errors;
+ uint64_t rx_over_errors;
+ uint64_t rx_crc_errors;
+ uint64_t rx_frame_errors;
+ uint64_t rx_fifo_errors;
+ uint64_t rx_missed_errors;
+
+ uint64_t tx_aborted_errors;
+ uint64_t tx_carrier_errors;
+ uint64_t tx_fifo_errors;
+ uint64_t tx_heartbeat_errors;
+ uint64_t tx_window_errors;
+};
+
+union ir_link_stats_u {
+ struct rtnl_link_stats *stats32;
+#ifdef HAVE_RTNL_LINK_STATS64
+ struct rtnl_link_stats64 *stats64;
#endif
+};
-typedef struct ir_ignorelist_s
-{
+typedef struct ir_ignorelist_s {
char *device;
char *type;
char *inst;
static int ir_ignorelist_invert = 1;
static ir_ignorelist_t *ir_ignorelist_head = NULL;
-static struct rtnl_handle rth;
+static struct mnl_socket *nl;
static char **iflist = NULL;
static size_t iflist_len = 0;
-static const char *config_keys[] =
-{
- "Interface",
- "VerboseInterface",
- "QDisc",
- "Class",
- "Filter",
- "IgnoreSelected"
-};
-static int config_keys_num = STATIC_ARRAY_SIZE (config_keys);
+static const char *config_keys[] = {"Interface", "VerboseInterface",
+ "QDisc", "Class",
+ "Filter", "IgnoreSelected"};
+static int config_keys_num = STATIC_ARRAY_SIZE(config_keys);
-static int add_ignorelist (const char *dev, const char *type,
- const char *inst)
-{
+static int add_ignorelist(const char *dev, const char *type, const char *inst) {
ir_ignorelist_t *entry;
- entry = (ir_ignorelist_t *) malloc (sizeof (ir_ignorelist_t));
+ entry = calloc(1, sizeof(*entry));
if (entry == NULL)
return (-1);
- memset (entry, '\0', sizeof (ir_ignorelist_t));
-
- if (strcasecmp (dev, "All") != 0)
- {
- entry->device = strdup (dev);
- if (entry->device == NULL)
- {
- sfree (entry);
+ if (strcasecmp(dev, "All") != 0) {
+ entry->device = strdup(dev);
+ if (entry->device == NULL) {
+ sfree(entry);
return (-1);
}
}
- entry->type = strdup (type);
- if (entry->type == NULL)
- {
- sfree (entry->device);
- sfree (entry);
+ entry->type = strdup(type);
+ if (entry->type == NULL) {
+ sfree(entry->device);
+ sfree(entry);
return (-1);
}
- if (inst != NULL)
- {
- entry->inst = strdup (inst);
- if (entry->inst == NULL)
- {
- sfree (entry->type);
- sfree (entry->device);
- sfree (entry);
+ if (inst != NULL) {
+ entry->inst = strdup(inst);
+ if (entry->inst == NULL) {
+ sfree(entry->type);
+ sfree(entry->device);
+ sfree(entry);
return (-1);
}
}
return (0);
} /* int add_ignorelist */
-/*
+/*
* Checks wether a data set should be ignored. Returns `true' is the value
* should be ignored, `false' otherwise.
*/
-static int check_ignorelist (const char *dev,
- const char *type, const char *type_instance)
-{
- ir_ignorelist_t *i;
-
- assert ((dev != NULL) && (type != NULL));
+static int check_ignorelist(const char *dev, const char *type,
+ const char *type_instance) {
+ assert((dev != NULL) && (type != NULL));
if (ir_ignorelist_head == NULL)
return (ir_ignorelist_invert ? 0 : 1);
- for (i = ir_ignorelist_head; i != NULL; i = i->next)
- {
+ for (ir_ignorelist_t *i = ir_ignorelist_head; i != NULL; i = i->next) {
/* i->device == NULL => match all devices */
- if ((i->device != NULL)
- && (strcasecmp (i->device, dev) != 0))
+ if ((i->device != NULL) && (strcasecmp(i->device, dev) != 0))
continue;
- if (strcasecmp (i->type, type) != 0)
+ if (strcasecmp(i->type, type) != 0)
continue;
- if ((i->inst != NULL) && (type_instance != NULL)
- && (strcasecmp (i->inst, type_instance) != 0))
+ if ((i->inst != NULL) && (type_instance != NULL) &&
+ (strcasecmp(i->inst, type_instance) != 0))
continue;
- DEBUG ("netlink plugin: check_ignorelist: "
- "(dev = %s; type = %s; inst = %s) matched "
- "(dev = %s; type = %s; inst = %s)",
- dev, type,
- type_instance == NULL ? "(nil)" : type_instance,
- i->device == NULL ? "(nil)" : i->device,
- i->type,
- i->inst == NULL ? "(nil)" : i->inst);
+ DEBUG("netlink plugin: check_ignorelist: "
+ "(dev = %s; type = %s; inst = %s) matched "
+ "(dev = %s; type = %s; inst = %s)",
+ dev, type, type_instance == NULL ? "(nil)" : type_instance,
+ i->device == NULL ? "(nil)" : i->device, i->type,
+ i->inst == NULL ? "(nil)" : i->inst);
return (ir_ignorelist_invert ? 0 : 1);
} /* for i */
return (ir_ignorelist_invert);
} /* int check_ignorelist */
-static void submit_one (const char *dev, const char *type,
- const char *type_instance, derive_t value)
-{
+static void submit_one(const char *dev, const char *type,
+ const char *type_instance, derive_t value) {
value_t values[1];
value_list_t vl = VALUE_LIST_INIT;
vl.values = values;
vl.values_len = 1;
- sstrncpy (vl.host, hostname_g, sizeof (vl.host));
- sstrncpy (vl.plugin, "netlink", sizeof (vl.plugin));
- sstrncpy (vl.plugin_instance, dev, sizeof (vl.plugin_instance));
- sstrncpy (vl.type, type, sizeof (vl.type));
+ sstrncpy(vl.host, hostname_g, sizeof(vl.host));
+ sstrncpy(vl.plugin, "netlink", sizeof(vl.plugin));
+ sstrncpy(vl.plugin_instance, dev, sizeof(vl.plugin_instance));
+ sstrncpy(vl.type, type, sizeof(vl.type));
if (type_instance != NULL)
- sstrncpy (vl.type_instance, type_instance, sizeof (vl.type_instance));
+ sstrncpy(vl.type_instance, type_instance, sizeof(vl.type_instance));
- plugin_dispatch_values (&vl);
+ plugin_dispatch_values(&vl);
} /* void submit_one */
-static void submit_two (const char *dev, const char *type,
- const char *type_instance,
- derive_t rx, derive_t tx)
-{
+static void submit_two(const char *dev, const char *type,
+ const char *type_instance, derive_t rx, derive_t tx) {
value_t values[2];
value_list_t vl = VALUE_LIST_INIT;
vl.values = values;
vl.values_len = 2;
- sstrncpy (vl.host, hostname_g, sizeof (vl.host));
- sstrncpy (vl.plugin, "netlink", sizeof (vl.plugin));
- sstrncpy (vl.plugin_instance, dev, sizeof (vl.plugin_instance));
- sstrncpy (vl.type, type, sizeof (vl.type));
+ sstrncpy(vl.host, hostname_g, sizeof(vl.host));
+ sstrncpy(vl.plugin, "netlink", sizeof(vl.plugin));
+ sstrncpy(vl.plugin_instance, dev, sizeof(vl.plugin_instance));
+ sstrncpy(vl.type, type, sizeof(vl.type));
if (type_instance != NULL)
- sstrncpy (vl.type_instance, type_instance, sizeof (vl.type_instance));
+ sstrncpy(vl.type_instance, type_instance, sizeof(vl.type_instance));
- plugin_dispatch_values (&vl);
+ plugin_dispatch_values(&vl);
} /* void submit_two */
-static int link_filter (const struct sockaddr_nl __attribute__((unused)) *sa,
- struct nlmsghdr *nmh, void __attribute__((unused)) *args)
-{
- struct ifinfomsg *msg;
- int msg_len;
- struct rtattr *attrs[IFLA_MAX + 1];
- struct rtnl_link_stats *stats;
+static int update_iflist(struct ifinfomsg *msg, const char *dev) {
+ /* Update the `iflist'. It's used to know which interfaces exist and query
+ * them later for qdiscs and classes. */
+ if ((msg->ifi_index >= 0) && ((size_t)msg->ifi_index >= iflist_len)) {
+ char **temp;
- const char *dev;
+ temp = realloc(iflist, (msg->ifi_index + 1) * sizeof(char *));
+ if (temp == NULL) {
+ ERROR("netlink plugin: update_iflist: realloc failed.");
+ return (-1);
+ }
- if (nmh->nlmsg_type != RTM_NEWLINK)
- {
- ERROR ("netlink plugin: link_filter: Don't know how to handle type %i.",
- nmh->nlmsg_type);
- return (-1);
+ memset(temp + iflist_len, '\0',
+ (msg->ifi_index + 1 - iflist_len) * sizeof(char *));
+ iflist = temp;
+ iflist_len = msg->ifi_index + 1;
+ }
+ if ((iflist[msg->ifi_index] == NULL) ||
+ (strcmp(iflist[msg->ifi_index], dev) != 0)) {
+ sfree(iflist[msg->ifi_index]);
+ iflist[msg->ifi_index] = strdup(dev);
}
- msg = NLMSG_DATA (nmh);
+ return (0);
+} /* int update_iflist */
+
+static void check_ignorelist_and_submit(const char *dev,
+ struct ir_link_stats_storage_s *stats) {
+
+ if (check_ignorelist(dev, "interface", NULL) == 0) {
+ submit_two(dev, "if_octets", NULL, stats->rx_bytes, stats->tx_bytes);
+ submit_two(dev, "if_packets", NULL, stats->rx_packets, stats->tx_packets);
+ submit_two(dev, "if_errors", NULL, stats->rx_errors, stats->tx_errors);
+ } else {
+ DEBUG("netlink plugin: Ignoring %s/interface.", dev);
+ }
+
+ if (check_ignorelist(dev, "if_detail", NULL) == 0) {
+ submit_two(dev, "if_dropped", NULL, stats->rx_dropped, stats->tx_dropped);
+ submit_one(dev, "if_multicast", NULL, stats->multicast);
+ submit_one(dev, "if_collisions", NULL, stats->collisions);
+
+ submit_one(dev, "if_rx_errors", "length", stats->rx_length_errors);
+ submit_one(dev, "if_rx_errors", "over", stats->rx_over_errors);
+ submit_one(dev, "if_rx_errors", "crc", stats->rx_crc_errors);
+ submit_one(dev, "if_rx_errors", "frame", stats->rx_frame_errors);
+ submit_one(dev, "if_rx_errors", "fifo", stats->rx_fifo_errors);
+ submit_one(dev, "if_rx_errors", "missed", stats->rx_missed_errors);
+
+ submit_one(dev, "if_tx_errors", "aborted", stats->tx_aborted_errors);
+ submit_one(dev, "if_tx_errors", "carrier", stats->tx_carrier_errors);
+ submit_one(dev, "if_tx_errors", "fifo", stats->tx_fifo_errors);
+ submit_one(dev, "if_tx_errors", "heartbeat", stats->tx_heartbeat_errors);
+ submit_one(dev, "if_tx_errors", "window", stats->tx_window_errors);
+ } else {
+ DEBUG("netlink plugin: Ignoring %s/if_detail.", dev);
+ }
+
+} /* void check_ignorelist_and_submit */
+
+#define COPY_RTNL_LINK_VALUE(dst_stats, src_stats, value_name) \
+ (dst_stats)->value_name = (src_stats)->value_name
+
+#define COPY_RTNL_LINK_STATS(dst_stats, src_stats) \
+ COPY_RTNL_LINK_VALUE(dst_stats, src_stats, rx_packets); \
+ COPY_RTNL_LINK_VALUE(dst_stats, src_stats, tx_packets); \
+ COPY_RTNL_LINK_VALUE(dst_stats, src_stats, rx_bytes); \
+ COPY_RTNL_LINK_VALUE(dst_stats, src_stats, tx_bytes); \
+ COPY_RTNL_LINK_VALUE(dst_stats, src_stats, rx_errors); \
+ COPY_RTNL_LINK_VALUE(dst_stats, src_stats, tx_errors); \
+ COPY_RTNL_LINK_VALUE(dst_stats, src_stats, rx_dropped); \
+ COPY_RTNL_LINK_VALUE(dst_stats, src_stats, tx_dropped); \
+ COPY_RTNL_LINK_VALUE(dst_stats, src_stats, multicast); \
+ COPY_RTNL_LINK_VALUE(dst_stats, src_stats, collisions); \
+ COPY_RTNL_LINK_VALUE(dst_stats, src_stats, rx_length_errors); \
+ COPY_RTNL_LINK_VALUE(dst_stats, src_stats, rx_over_errors); \
+ COPY_RTNL_LINK_VALUE(dst_stats, src_stats, rx_crc_errors); \
+ COPY_RTNL_LINK_VALUE(dst_stats, src_stats, rx_frame_errors); \
+ COPY_RTNL_LINK_VALUE(dst_stats, src_stats, rx_fifo_errors); \
+ COPY_RTNL_LINK_VALUE(dst_stats, src_stats, rx_missed_errors); \
+ COPY_RTNL_LINK_VALUE(dst_stats, src_stats, tx_aborted_errors); \
+ COPY_RTNL_LINK_VALUE(dst_stats, src_stats, tx_carrier_errors); \
+ COPY_RTNL_LINK_VALUE(dst_stats, src_stats, tx_fifo_errors); \
+ COPY_RTNL_LINK_VALUE(dst_stats, src_stats, tx_heartbeat_errors); \
+ COPY_RTNL_LINK_VALUE(dst_stats, src_stats, tx_window_errors)
+
+#ifdef HAVE_RTNL_LINK_STATS64
+static void check_ignorelist_and_submit64(const char *dev,
+ struct rtnl_link_stats64 *stats) {
+ struct ir_link_stats_storage_s s;
+
+ COPY_RTNL_LINK_STATS(&s, stats);
+
+ check_ignorelist_and_submit(dev, &s);
+}
+#endif
- msg_len = nmh->nlmsg_len - NLMSG_LENGTH(sizeof (struct ifinfomsg));
- if (msg_len < 0)
- {
- ERROR ("netlink plugin: link_filter: msg_len = %i < 0;", msg_len);
- return (-1);
- }
+static void check_ignorelist_and_submit32(const char *dev,
+ struct rtnl_link_stats *stats) {
+ struct ir_link_stats_storage_s s;
- memset (attrs, '\0', sizeof (attrs));
- if (parse_rtattr (attrs, IFLA_MAX, IFLA_RTA (msg), msg_len) != 0)
- {
- ERROR ("netlink plugin: link_filter: parse_rtattr failed.");
- return (-1);
- }
+ COPY_RTNL_LINK_STATS(&s, stats);
- if (attrs[IFLA_IFNAME] == NULL)
- {
- ERROR ("netlink plugin: link_filter: attrs[IFLA_IFNAME] == NULL");
- return (-1);
+ check_ignorelist_and_submit(dev, &s);
+}
+
+static int link_filter_cb(const struct nlmsghdr *nlh,
+ void *args __attribute__((unused))) {
+ struct ifinfomsg *ifm = mnl_nlmsg_get_payload(nlh);
+ struct nlattr *attr;
+ const char *dev = NULL;
+ union ir_link_stats_u stats;
+
+ if (nlh->nlmsg_type != RTM_NEWLINK) {
+ ERROR("netlink plugin: link_filter_cb: Don't know how to handle type %i.",
+ nlh->nlmsg_type);
+ return MNL_CB_ERROR;
}
- dev = RTA_DATA (attrs[IFLA_IFNAME]);
- /* Update the `iflist'. It's used to know which interfaces exist and query
- * them later for qdiscs and classes. */
- if ((msg->ifi_index >= 0) && ((size_t) msg->ifi_index >= iflist_len))
- {
- char **temp;
+ /* Scan attribute list for device name. */
+ mnl_attr_for_each(attr, nlh, sizeof(*ifm)) {
+ if (mnl_attr_get_type(attr) != IFLA_IFNAME)
+ continue;
- temp = (char **) realloc (iflist, (msg->ifi_index + 1) * sizeof (char *));
- if (temp == NULL)
- {
- ERROR ("netlink plugin: link_filter: realloc failed.");
- return (-1);
+ if (mnl_attr_validate(attr, MNL_TYPE_STRING) < 0) {
+ ERROR("netlink plugin: link_filter_cb: IFLA_IFNAME mnl_attr_validate "
+ "failed.");
+ return MNL_CB_ERROR;
}
- memset (temp + iflist_len, '\0',
- (msg->ifi_index + 1 - iflist_len) * sizeof (char *));
- iflist = temp;
- iflist_len = msg->ifi_index + 1;
- }
- if ((iflist[msg->ifi_index] == NULL)
- || (strcmp (iflist[msg->ifi_index], dev) != 0))
- {
- sfree (iflist[msg->ifi_index]);
- iflist[msg->ifi_index] = strdup (dev);
+ dev = mnl_attr_get_str(attr);
+ if (update_iflist(ifm, dev) < 0)
+ return MNL_CB_ERROR;
+ break;
}
- if (attrs[IFLA_STATS] == NULL)
- {
- DEBUG ("netlink plugin: link_filter: No statistics for interface %s.", dev);
- return (0);
+ if (dev == NULL) {
+ ERROR("netlink plugin: link_filter_cb: dev == NULL");
+ return MNL_CB_ERROR;
}
- stats = RTA_DATA (attrs[IFLA_STATS]);
+#ifdef HAVE_RTNL_LINK_STATS64
+ mnl_attr_for_each(attr, nlh, sizeof(*ifm)) {
+ if (mnl_attr_get_type(attr) != IFLA_STATS64)
+ continue;
- if (check_ignorelist (dev, "interface", NULL) == 0)
- {
- submit_two (dev, "if_octets", NULL, stats->rx_bytes, stats->tx_bytes);
- submit_two (dev, "if_packets", NULL, stats->rx_packets, stats->tx_packets);
- submit_two (dev, "if_errors", NULL, stats->rx_errors, stats->tx_errors);
- }
- else
- {
- DEBUG ("netlink plugin: Ignoring %s/interface.", dev);
+ if (mnl_attr_validate2(attr, MNL_TYPE_UNSPEC, sizeof(*stats.stats64)) < 0) {
+ ERROR("netlink plugin: link_filter_cb: IFLA_STATS64 mnl_attr_validate2 "
+ "failed.");
+ return MNL_CB_ERROR;
+ }
+ stats.stats64 = mnl_attr_get_payload(attr);
+
+ check_ignorelist_and_submit64(dev, stats.stats64);
+
+ return MNL_CB_OK;
}
+#endif
+ mnl_attr_for_each(attr, nlh, sizeof(*ifm)) {
+ if (mnl_attr_get_type(attr) != IFLA_STATS)
+ continue;
- if (check_ignorelist (dev, "if_detail", NULL) == 0)
- {
- submit_two (dev, "if_dropped", NULL, stats->rx_dropped, stats->tx_dropped);
- submit_one (dev, "if_multicast", NULL, stats->multicast);
- submit_one (dev, "if_collisions", NULL, stats->collisions);
-
- submit_one (dev, "if_rx_errors", "length", stats->rx_length_errors);
- submit_one (dev, "if_rx_errors", "over", stats->rx_over_errors);
- submit_one (dev, "if_rx_errors", "crc", stats->rx_crc_errors);
- submit_one (dev, "if_rx_errors", "frame", stats->rx_frame_errors);
- submit_one (dev, "if_rx_errors", "fifo", stats->rx_fifo_errors);
- submit_one (dev, "if_rx_errors", "missed", stats->rx_missed_errors);
-
- submit_one (dev, "if_tx_errors", "aborted", stats->tx_aborted_errors);
- submit_one (dev, "if_tx_errors", "carrier", stats->tx_carrier_errors);
- submit_one (dev, "if_tx_errors", "fifo", stats->tx_fifo_errors);
- submit_one (dev, "if_tx_errors", "heartbeat", stats->tx_heartbeat_errors);
- submit_one (dev, "if_tx_errors", "window", stats->tx_window_errors);
+ if (mnl_attr_validate2(attr, MNL_TYPE_UNSPEC, sizeof(*stats.stats32)) < 0) {
+ ERROR("netlink plugin: link_filter_cb: IFLA_STATS mnl_attr_validate2 "
+ "failed.");
+ return MNL_CB_ERROR;
+ }
+ stats.stats32 = mnl_attr_get_payload(attr);
+
+ check_ignorelist_and_submit32(dev, stats.stats32);
+
+ return MNL_CB_OK;
}
- else
- {
- DEBUG ("netlink plugin: Ignoring %s/if_detail.", dev);
+
+ DEBUG("netlink plugin: link_filter: No statistics for interface %s.", dev);
+ return MNL_CB_OK;
+
+} /* int link_filter_cb */
+
+#if HAVE_TCA_STATS2
+static int qos_attr_cb(const struct nlattr *attr, void *data) {
+ struct gnet_stats_basic **bs = (struct gnet_stats_basic **)data;
+
+ /* skip unsupported attribute in user-space */
+ if (mnl_attr_type_valid(attr, TCA_STATS_MAX) < 0)
+ return MNL_CB_OK;
+
+ if (mnl_attr_get_type(attr) == TCA_STATS_BASIC) {
+ if (mnl_attr_validate2(attr, MNL_TYPE_UNSPEC, sizeof(**bs)) < 0) {
+ ERROR("netlink plugin: qos_attr_cb: TCA_STATS_BASIC mnl_attr_validate2 "
+ "failed.");
+ return MNL_CB_ERROR;
+ }
+ *bs = mnl_attr_get_payload(attr);
+ return MNL_CB_STOP;
}
- return (0);
-} /* int link_filter */
+ return MNL_CB_OK;
+} /* qos_attr_cb */
+#endif
-static int qos_filter (const struct sockaddr_nl __attribute__((unused)) *sa,
- struct nlmsghdr *nmh, void *args)
-{
- struct tcmsg *msg;
- int msg_len;
- struct rtattr *attrs[TCA_MAX + 1];
+static int qos_filter_cb(const struct nlmsghdr *nlh, void *args) {
+ struct tcmsg *tm = mnl_nlmsg_get_payload(nlh);
+ struct nlattr *attr;
- int wanted_ifindex = *((int *) args);
+ int wanted_ifindex = *((int *)args);
const char *dev;
+ const char *kind = NULL;
/* char *type_instance; */
- char *tc_type;
+ const char *tc_type;
char tc_inst[DATA_MAX_NAME_LEN];
- if (nmh->nlmsg_type == RTM_NEWQDISC)
+ _Bool stats_submitted = 0;
+
+ if (nlh->nlmsg_type == RTM_NEWQDISC)
tc_type = "qdisc";
- else if (nmh->nlmsg_type == RTM_NEWTCLASS)
+ else if (nlh->nlmsg_type == RTM_NEWTCLASS)
tc_type = "class";
- else if (nmh->nlmsg_type == RTM_NEWTFILTER)
+ else if (nlh->nlmsg_type == RTM_NEWTFILTER)
tc_type = "filter";
- else
- {
- ERROR ("netlink plugin: qos_filter: Don't know how to handle type %i.",
- nmh->nlmsg_type);
- return (-1);
+ else {
+ ERROR("netlink plugin: qos_filter_cb: Don't know how to handle type %i.",
+ nlh->nlmsg_type);
+ return MNL_CB_ERROR;
}
- msg = NLMSG_DATA (nmh);
-
- msg_len = nmh->nlmsg_len - sizeof (struct tcmsg);
- if (msg_len < 0)
- {
- ERROR ("netlink plugin: qos_filter: msg_len = %i < 0;", msg_len);
- return (-1);
+ if (tm->tcm_ifindex != wanted_ifindex) {
+ DEBUG("netlink plugin: qos_filter_cb: Got %s for interface #%i, "
+ "but expected #%i.",
+ tc_type, tm->tcm_ifindex, wanted_ifindex);
+ return MNL_CB_OK;
}
- if (msg->tcm_ifindex != wanted_ifindex)
- {
- DEBUG ("netlink plugin: qos_filter: Got %s for interface #%i, "
- "but expected #%i.",
- tc_type, msg->tcm_ifindex, wanted_ifindex);
- return (0);
+ if ((tm->tcm_ifindex >= 0) && ((size_t)tm->tcm_ifindex >= iflist_len)) {
+ ERROR("netlink plugin: qos_filter_cb: tm->tcm_ifindex = %i "
+ ">= iflist_len = %zu",
+ tm->tcm_ifindex, iflist_len);
+ return MNL_CB_ERROR;
}
- if ((msg->tcm_ifindex >= 0)
- && ((size_t) msg->tcm_ifindex >= iflist_len))
- {
- ERROR ("netlink plugin: qos_filter: msg->tcm_ifindex = %i "
- ">= iflist_len = %zu",
- msg->tcm_ifindex, iflist_len);
- return (-1);
+ dev = iflist[tm->tcm_ifindex];
+ if (dev == NULL) {
+ ERROR("netlink plugin: qos_filter_cb: iflist[%i] == NULL", tm->tcm_ifindex);
+ return MNL_CB_ERROR;
}
- dev = iflist[msg->tcm_ifindex];
- if (dev == NULL)
- {
- ERROR ("netlink plugin: qos_filter: iflist[%i] == NULL",
- msg->tcm_ifindex);
- return (-1);
- }
+ mnl_attr_for_each(attr, nlh, sizeof(*tm)) {
+ if (mnl_attr_get_type(attr) != TCA_KIND)
+ continue;
- memset (attrs, '\0', sizeof (attrs));
- if (parse_rtattr (attrs, TCA_MAX, TCA_RTA (msg), msg_len) != 0)
- {
- ERROR ("netlink plugin: qos_filter: parse_rtattr failed.");
- return (-1);
+ if (mnl_attr_validate(attr, MNL_TYPE_STRING) < 0) {
+ ERROR(
+ "netlink plugin: qos_filter_cb: TCA_KIND mnl_attr_validate failed.");
+ return MNL_CB_ERROR;
+ }
+
+ kind = mnl_attr_get_str(attr);
+ break;
}
- if (attrs[TCA_KIND] == NULL)
- {
- ERROR ("netlink plugin: qos_filter: attrs[TCA_KIND] == NULL");
+ if (kind == NULL) {
+ ERROR("netlink plugin: qos_filter_cb: kind == NULL");
return (-1);
}
- { /* The the ID */
+ { /* The ID */
uint32_t numberic_id;
- numberic_id = msg->tcm_handle;
- if (strcmp (tc_type, "filter") == 0)
- numberic_id = msg->tcm_parent;
+ numberic_id = tm->tcm_handle;
+ if (strcmp(tc_type, "filter") == 0)
+ numberic_id = tm->tcm_parent;
- ssnprintf (tc_inst, sizeof (tc_inst), "%s-%x:%x",
- (const char *) RTA_DATA (attrs[TCA_KIND]),
- numberic_id >> 16,
- numberic_id & 0x0000FFFF);
+ ssnprintf(tc_inst, sizeof(tc_inst), "%s-%x:%x", kind, numberic_id >> 16,
+ numberic_id & 0x0000FFFF);
}
- DEBUG ("netlink plugin: qos_filter: got %s for %s (%i).",
- tc_type, dev, msg->tcm_ifindex);
-
- if (check_ignorelist (dev, tc_type, tc_inst))
- return (0);
+ DEBUG("netlink plugin: qos_filter_cb: got %s for %s (%i).", tc_type, dev,
+ tm->tcm_ifindex);
+
+ if (check_ignorelist(dev, tc_type, tc_inst))
+ return MNL_CB_OK;
#if HAVE_TCA_STATS2
- if (attrs[TCA_STATS2])
- {
- struct rtattr *attrs_stats[TCA_STATS_MAX + 1];
+ mnl_attr_for_each(attr, nlh, sizeof(*tm)) {
+ struct gnet_stats_basic *bs = NULL;
+
+ if (mnl_attr_get_type(attr) != TCA_STATS2)
+ continue;
+
+ if (mnl_attr_validate(attr, MNL_TYPE_NESTED) < 0) {
+ ERROR("netlink plugin: qos_filter_cb: TCA_STATS2 mnl_attr_validate "
+ "failed.");
+ return MNL_CB_ERROR;
+ }
- memset (attrs_stats, '\0', sizeof (attrs_stats));
- parse_rtattr_nested (attrs_stats, TCA_STATS_MAX, attrs[TCA_STATS2]);
+ mnl_attr_parse_nested(attr, qos_attr_cb, &bs);
- if (attrs_stats[TCA_STATS_BASIC])
- {
- struct gnet_stats_basic bs;
+ if (bs != NULL) {
char type_instance[DATA_MAX_NAME_LEN];
- ssnprintf (type_instance, sizeof (type_instance), "%s-%s",
- tc_type, tc_inst);
+ stats_submitted = 1;
- memset (&bs, '\0', sizeof (bs));
- memcpy (&bs, RTA_DATA (attrs_stats[TCA_STATS_BASIC]),
- MIN (RTA_PAYLOAD (attrs_stats[TCA_STATS_BASIC]), sizeof(bs)));
+ ssnprintf(type_instance, sizeof(type_instance), "%s-%s", tc_type,
+ tc_inst);
- submit_one (dev, "ipt_bytes", type_instance, bs.bytes);
- submit_one (dev, "ipt_packets", type_instance, bs.packets);
+ submit_one(dev, "ipt_bytes", type_instance, bs->bytes);
+ submit_one(dev, "ipt_packets", type_instance, bs->packets);
}
+
+ break;
}
#endif /* TCA_STATS2 */
-#if HAVE_TCA_STATS && HAVE_TCA_STATS2
- else
-#endif
+
#if HAVE_TCA_STATS
- if (attrs[TCA_STATS] != NULL)
- {
- struct tc_stats ts;
- char type_instance[DATA_MAX_NAME_LEN];
+ mnl_attr_for_each(attr, nlh, sizeof(*tm)) {
+ struct tc_stats *ts = NULL;
- ssnprintf (type_instance, sizeof (type_instance), "%s-%s",
- tc_type, tc_inst);
+ if (mnl_attr_get_type(attr) != TCA_STATS)
+ continue;
- memset(&ts, '\0', sizeof (ts));
- memcpy(&ts, RTA_DATA (attrs[TCA_STATS]),
- MIN (RTA_PAYLOAD (attrs[TCA_STATS]), sizeof (ts)));
+ if (mnl_attr_validate2(attr, MNL_TYPE_UNSPEC, sizeof(*ts)) < 0) {
+ ERROR("netlink plugin: qos_filter_cb: TCA_STATS mnl_attr_validate2 "
+ "failed.");
+ return MNL_CB_ERROR;
+ }
+ ts = mnl_attr_get_payload(attr);
- submit_one (dev, "ipt_bytes", type_instance, ts.bytes);
- submit_one (dev, "ipt_packets", type_instance, ts.packets);
+ if (!stats_submitted && ts != NULL) {
+ char type_instance[DATA_MAX_NAME_LEN];
+
+ ssnprintf(type_instance, sizeof(type_instance), "%s-%s", tc_type,
+ tc_inst);
+
+ submit_one(dev, "ipt_bytes", type_instance, ts->bytes);
+ submit_one(dev, "ipt_packets", type_instance, ts->packets);
+ }
+
+ break;
}
+
#endif /* TCA_STATS */
-#if HAVE_TCA_STATS || HAVE_TCA_STATS2
- else
+
+#if !(HAVE_TCA_STATS && HAVE_TCA_STATS2)
+ DEBUG("netlink plugin: qos_filter_cb: Have neither TCA_STATS2 nor "
+ "TCA_STATS.");
#endif
- {
- DEBUG ("netlink plugin: qos_filter: Have neither TCA_STATS2 nor "
- "TCA_STATS.");
- }
- return (0);
-} /* int qos_filter */
+ return MNL_CB_OK;
+} /* int qos_filter_cb */
-static int ir_config (const char *key, const char *value)
-{
+static int ir_config(const char *key, const char *value) {
char *new_val;
char *fields[8];
int fields_num;
int status = 1;
- new_val = strdup (value);
+ new_val = strdup(value);
if (new_val == NULL)
return (-1);
- fields_num = strsplit (new_val, fields, STATIC_ARRAY_SIZE (fields));
- if ((fields_num < 1) || (fields_num > 8))
- {
- sfree (new_val);
+ fields_num = strsplit(new_val, fields, STATIC_ARRAY_SIZE(fields));
+ if ((fields_num < 1) || (fields_num > 8)) {
+ sfree(new_val);
return (-1);
}
- if ((strcasecmp (key, "Interface") == 0)
- || (strcasecmp (key, "VerboseInterface") == 0))
- {
- if (fields_num != 1)
- {
- ERROR ("netlink plugin: Invalid number of fields for option "
- "`%s'. Got %i, expected 1.", key, fields_num);
+ if ((strcasecmp(key, "Interface") == 0) ||
+ (strcasecmp(key, "VerboseInterface") == 0)) {
+ if (fields_num != 1) {
+ ERROR("netlink plugin: Invalid number of fields for option "
+ "`%s'. Got %i, expected 1.",
+ key, fields_num);
status = -1;
- }
- else
- {
- add_ignorelist (fields[0], "interface", NULL);
- if (strcasecmp (key, "VerboseInterface") == 0)
- add_ignorelist (fields[0], "if_detail", NULL);
+ } else {
+ add_ignorelist(fields[0], "interface", NULL);
+ if (strcasecmp(key, "VerboseInterface") == 0)
+ add_ignorelist(fields[0], "if_detail", NULL);
status = 0;
}
- }
- else if ((strcasecmp (key, "QDisc") == 0)
- || (strcasecmp (key, "Class") == 0)
- || (strcasecmp (key, "Filter") == 0))
- {
- if ((fields_num < 1) || (fields_num > 2))
- {
- ERROR ("netlink plugin: Invalid number of fields for option "
- "`%s'. Got %i, expected 1 or 2.", key, fields_num);
+ } else if ((strcasecmp(key, "QDisc") == 0) ||
+ (strcasecmp(key, "Class") == 0) ||
+ (strcasecmp(key, "Filter") == 0)) {
+ if ((fields_num < 1) || (fields_num > 2)) {
+ ERROR("netlink plugin: Invalid number of fields for option "
+ "`%s'. Got %i, expected 1 or 2.",
+ key, fields_num);
return (-1);
- }
- else
- {
- add_ignorelist (fields[0], key,
- (fields_num == 2) ? fields[1] : NULL);
+ } else {
+ add_ignorelist(fields[0], key, (fields_num == 2) ? fields[1] : NULL);
status = 0;
}
- }
- else if (strcasecmp (key, "IgnoreSelected") == 0)
- {
- if (fields_num != 1)
- {
- ERROR ("netlink plugin: Invalid number of fields for option "
- "`IgnoreSelected'. Got %i, expected 1.", fields_num);
+ } else if (strcasecmp(key, "IgnoreSelected") == 0) {
+ if (fields_num != 1) {
+ ERROR("netlink plugin: Invalid number of fields for option "
+ "`IgnoreSelected'. Got %i, expected 1.",
+ fields_num);
status = -1;
- }
- else
- {
- if (IS_TRUE (fields[0]))
- ir_ignorelist_invert = 0;
+ } else {
+ if (IS_TRUE(fields[0]))
+ ir_ignorelist_invert = 0;
else
- ir_ignorelist_invert = 1;
+ ir_ignorelist_invert = 1;
status = 0;
}
}
- sfree (new_val);
+ sfree(new_val);
return (status);
} /* int ir_config */
-static int ir_init (void)
-{
- memset (&rth, '\0', sizeof (rth));
+static int ir_init(void) {
+ nl = mnl_socket_open(NETLINK_ROUTE);
+ if (nl == NULL) {
+ ERROR("netlink plugin: ir_init: mnl_socket_open failed.");
+ return (-1);
+ }
- if (rtnl_open (&rth, 0) != 0)
- {
- ERROR ("netlink plugin: ir_init: rtnl_open failed.");
+ if (mnl_socket_bind(nl, 0, MNL_SOCKET_AUTOPID) < 0) {
+ ERROR("netlink plugin: ir_init: mnl_socket_bind failed.");
return (-1);
}
return (0);
} /* int ir_init */
-static int ir_read (void)
-{
- struct tcmsg tm;
- int ifindex;
+static int ir_read(void) {
+ char buf[MNL_SOCKET_BUFFER_SIZE];
+ struct nlmsghdr *nlh;
+ struct rtgenmsg *rt;
+ int ret;
+ unsigned int seq, portid;
+
+ static const int type_id[] = {RTM_GETQDISC, RTM_GETTCLASS, RTM_GETTFILTER};
+ static const char *type_name[] = {"qdisc", "class", "filter"};
+
+ portid = mnl_socket_get_portid(nl);
- static const int type_id[] = { RTM_GETQDISC, RTM_GETTCLASS, RTM_GETTFILTER };
- static const char *type_name[] = { "qdisc", "class", "filter" };
+ nlh = mnl_nlmsg_put_header(buf);
+ nlh->nlmsg_type = RTM_GETLINK;
+ nlh->nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP;
+ nlh->nlmsg_seq = seq = time(NULL);
+ rt = mnl_nlmsg_put_extra_header(nlh, sizeof(*rt));
+ rt->rtgen_family = AF_PACKET;
- if (rtnl_wilddump_request (&rth, AF_UNSPEC, RTM_GETLINK) < 0)
- {
- ERROR ("netlink plugin: ir_read: rtnl_wilddump_request failed.");
+ if (mnl_socket_sendto(nl, nlh, nlh->nlmsg_len) < 0) {
+ ERROR("netlink plugin: ir_read: rtnl_wilddump_request failed.");
return (-1);
}
-#ifdef RTNL_DUMP_FILTER_FIVE_ARGS
- if (rtnl_dump_filter (&rth, link_filter, /* arg1 = */ NULL,
- NULL, NULL) != 0)
-#elif defined(RTNL_DUMP_FILTER_THREE_ARGS)
- if (rtnl_dump_filter (&rth, link_filter, /* arg = */ NULL) != 0)
-#else
-#error "Failed to determine the number of arguments to 'rtnl_dump_filter'!"
-#endif
- {
- ERROR ("netlink plugin: ir_read: rtnl_dump_filter failed.");
+ ret = mnl_socket_recvfrom(nl, buf, sizeof(buf));
+ while (ret > 0) {
+ ret = mnl_cb_run(buf, ret, seq, portid, link_filter_cb, NULL);
+ if (ret <= MNL_CB_STOP)
+ break;
+ ret = mnl_socket_recvfrom(nl, buf, sizeof(buf));
+ }
+ if (ret < 0) {
+ ERROR("netlink plugin: ir_read: mnl_socket_recvfrom failed.");
return (-1);
}
- /* `link_filter' will update `iflist' which is used here to iterate over all
- * interfaces. */
- for (ifindex = 0; (size_t) ifindex < iflist_len; ifindex++)
- {
- size_t type_index;
+ /* `link_filter_cb' will update `iflist' which is used here to iterate
+ * over all interfaces. */
+ for (size_t ifindex = 1; ifindex < iflist_len; ifindex++) {
+ struct tcmsg *tm;
if (iflist[ifindex] == NULL)
continue;
- for (type_index = 0; type_index < STATIC_ARRAY_SIZE (type_id); type_index++)
- {
- if (check_ignorelist (iflist[ifindex], type_name[type_index], NULL))
- {
- DEBUG ("netlink plugin: ir_read: check_ignorelist (%s, %s, (nil)) "
- "== TRUE", iflist[ifindex], type_name[type_index]);
- continue;
+ for (size_t type_index = 0; type_index < STATIC_ARRAY_SIZE(type_id);
+ type_index++) {
+ if (check_ignorelist(iflist[ifindex], type_name[type_index], NULL)) {
+ DEBUG("netlink plugin: ir_read: check_ignorelist (%s, %s, (nil)) "
+ "== TRUE",
+ iflist[ifindex], type_name[type_index]);
+ continue;
}
- DEBUG ("netlink plugin: ir_read: querying %s from %s (%i).",
- type_name[type_index], iflist[ifindex], ifindex);
+ DEBUG("netlink plugin: ir_read: querying %s from %s (%zu).",
+ type_name[type_index], iflist[ifindex], ifindex);
- memset (&tm, '\0', sizeof (tm));
- tm.tcm_family = AF_UNSPEC;
- tm.tcm_ifindex = ifindex;
+ nlh = mnl_nlmsg_put_header(buf);
+ nlh->nlmsg_type = type_id[type_index];
+ nlh->nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP;
+ nlh->nlmsg_seq = seq = time(NULL);
+ tm = mnl_nlmsg_put_extra_header(nlh, sizeof(*tm));
+ tm->tcm_family = AF_PACKET;
+ tm->tcm_ifindex = ifindex;
- if (rtnl_dump_request (&rth, type_id[type_index], &tm, sizeof (tm)) < 0)
- {
- ERROR ("netlink plugin: ir_read: rtnl_dump_request failed.");
- continue;
+ if (mnl_socket_sendto(nl, nlh, nlh->nlmsg_len) < 0) {
+ ERROR("netlink plugin: ir_read: mnl_socket_sendto failed.");
+ continue;
}
-#ifdef RTNL_DUMP_FILTER_FIVE_ARGS
- if (rtnl_dump_filter (&rth, qos_filter, (void *) &ifindex,
- NULL, NULL) != 0)
-#elif defined(RTNL_DUMP_FILTER_THREE_ARGS)
- if (rtnl_dump_filter (&rth, qos_filter, /* arg = */ &ifindex) != 0)
-#else
-#error "Failed to determine the number of arguments to 'rtnl_dump_filter'!"
-#endif
- {
- ERROR ("netlink plugin: ir_read: rtnl_dump_filter failed.");
- continue;
+ ret = mnl_socket_recvfrom(nl, buf, sizeof(buf));
+ while (ret > 0) {
+ ret = mnl_cb_run(buf, ret, seq, portid, qos_filter_cb, &ifindex);
+ if (ret <= MNL_CB_STOP)
+ break;
+ ret = mnl_socket_recvfrom(nl, buf, sizeof(buf));
}
+ if (ret < 0) {
+ ERROR("netlink plugin: ir_read:mnl_socket_recvfrom failed.");
+ continue;
+ }
+
} /* for (type_index) */
- } /* for (if_index) */
+ } /* for (if_index) */
return (0);
} /* int ir_read */
-static int ir_shutdown (void)
-{
- if ((rth.fd != 0) || (rth.seq != 0) || (rth.dump != 0))
- {
- rtnl_close(&rth);
- memset (&rth, '\0', sizeof (rth));
+static int ir_shutdown(void) {
+ if (nl) {
+ mnl_socket_close(nl);
+ nl = NULL;
}
-
+
return (0);
} /* int ir_shutdown */
-void module_register (void)
-{
- plugin_register_config ("netlink", ir_config, config_keys, config_keys_num);
- plugin_register_init ("netlink", ir_init);
- plugin_register_read ("netlink", ir_read);
- plugin_register_shutdown ("netlink", ir_shutdown);
+void module_register(void) {
+ plugin_register_config("netlink", ir_config, config_keys, config_keys_num);
+ plugin_register_init("netlink", ir_init);
+ plugin_register_read("netlink", ir_read);
+ plugin_register_shutdown("netlink", ir_shutdown);
} /* void module_register */
/*
projects / collectd.git / blobdiff