Merge pull request #2767 from rpv-tomsk/tmpfix

netlink plugin: Handle new counter from Linux kernel version 4.6+.

diff --git a/configure.ac b/configure.ac
index 4fe2b72..f37d6da 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -3660,6 +3660,18 @@ if test "x$with_libmnl" = "xyes"; then
     [[#include <linux/if_link.h>]]
   )
 
+  AC_CHECK_MEMBERS([struct rtnl_link_stats.rx_nohandler],
+    [],
+    [],
+    [[#include <linux/if_link.h>]]
+  )
+
+  AC_CHECK_MEMBERS([struct rtnl_link_stats64.rx_nohandler],
+    [],
+    [],
+    [[#include <linux/if_link.h>]]
+  )
+
   AC_CHECK_LIB([mnl], [mnl_nlmsg_get_payload],
     [with_libmnl="yes"],
     [with_libmnl="no (symbol 'mnl_nlmsg_get_payload' not found)"],

diff --git a/src/netlink.c b/src/netlink.c
index 1978eb4..051458f 100644 (file)
--- a/src/netlink.c
+++ b/src/netlink.c
@@ -56,6 +56,7 @@ struct ir_link_stats_storage_s {
   uint64_t tx_dropped;
   uint64_t multicast;
   uint64_t collisions;
+  uint64_t rx_nohandler;
 
   uint64_t rx_length_errors;
   uint64_t rx_over_errors;
@@ -253,6 +254,10 @@ static void check_ignorelist_and_submit(const char *dev,
     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);
+#if defined(HAVE_STRUCT_RTNL_LINK_STATS_RX_NOHANDLER) ||                       \
+    defined(HAVE_STRUCT_RTNL_LINK_STATS64_RX_NOHANDLER)
+    submit_one(dev, "if_rx_nohandler", NULL, stats->rx_nohandler);
+#endif
 
     submit_one(dev, "if_rx_errors", "length", stats->rx_length_errors);
     submit_one(dev, "if_rx_errors", "over", stats->rx_over_errors);
@@ -304,6 +309,9 @@ static void check_ignorelist_and_submit64(const char *dev,
   struct ir_link_stats_storage_s s;
 
   COPY_RTNL_LINK_STATS(&s, stats);
+#ifdef HAVE_STRUCT_RTNL_LINK_STATS64_RX_NOHANDLER
+  COPY_RTNL_LINK_VALUE(&s, stats, rx_nohandler);
+#endif
 
   check_ignorelist_and_submit(dev, &s);
 }
@@ -314,6 +322,9 @@ static void check_ignorelist_and_submit32(const char *dev,
   struct ir_link_stats_storage_s s;
 
   COPY_RTNL_LINK_STATS(&s, stats);
+#ifdef HAVE_STRUCT_RTNL_LINK_STATS_RX_NOHANDLER
+  COPY_RTNL_LINK_VALUE(&s, stats, rx_nohandler);
+#endif
 
   check_ignorelist_and_submit(dev, &s);
 }
@@ -357,10 +368,10 @@ static int link_filter_cb(const struct nlmsghdr *nlh,
     if (mnl_attr_get_type(attr) != IFLA_STATS64)
       continue;
 
-    if (mnl_attr_validate2(attr, MNL_TYPE_UNSPEC, sizeof(*stats.stats64)) < 0) {
-      ERROR("netlink plugin: link_filter_cb: IFLA_STATS64 mnl_attr_validate2 "
-            "failed: %s",
-            STRERRNO);
+    uint16_t attr_len = mnl_attr_get_payload_len(attr);
+    if (attr_len < sizeof(*stats.stats64)) {
+      ERROR("netlink plugin: link_filter_cb: IFLA_STATS64 attribute has "
+            "insufficient data.");
       return MNL_CB_ERROR;
     }
     stats.stats64 = mnl_attr_get_payload(attr);
@@ -374,10 +385,10 @@ static int link_filter_cb(const struct nlmsghdr *nlh,
     if (mnl_attr_get_type(attr) != IFLA_STATS)
       continue;
 
-    if (mnl_attr_validate2(attr, MNL_TYPE_UNSPEC, sizeof(*stats.stats32)) < 0) {
-      ERROR("netlink plugin: link_filter_cb: IFLA_STATS mnl_attr_validate2 "
-            "failed: %s",
-            STRERRNO);
+    uint16_t attr_len = mnl_attr_get_payload_len(attr);
+    if (attr_len < sizeof(*stats.stats32)) {
+      ERROR("netlink plugin: link_filter_cb: IFLA_STATS attribute has "
+            "insufficient data.");
       return MNL_CB_ERROR;
     }
     stats.stats32 = mnl_attr_get_payload(attr);

diff --git a/src/types.db b/src/types.db
index f27ba46..1b1e6f0 100644 (file)
--- a/src/types.db
+++ b/src/types.db
@@ -111,6 +111,7 @@ if_octets               rx:DERIVE:0:U, tx:DERIVE:0:U
 if_packets              rx:DERIVE:0:U, tx:DERIVE:0:U
 if_rx_dropped           value:DERIVE:0:U
 if_rx_errors            value:DERIVE:0:U
+if_rx_nohandler         value:DERIVE:0:U
 if_rx_octets            value:DERIVE:0:U
 if_rx_packets           value:DERIVE:0:U
 if_tx_dropped           value:DERIVE:0:U