ip: Add IFLA_EVENT output to ip monitor

Add IFLA_EVENT output so that event types can be viewed with
'monitor' command.  This gives a little more information for why
a given message was received.

Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com>

diff --git a/ip/ipaddress.c b/ip/ipaddress.c
index 4900dce09df87cab21e079b1837046908b7f812b..f06f5829fb613700e7fc7d43469bb34c0e967b16 100644 (file)
--- a/ip/ipaddress.c
+++ b/ip/ipaddress.c
@@ -737,6 +737,26 @@ int print_linkinfo_brief(const struct sockaddr_nl *who,
        return 0;
 }
 
+static const char *link_events[] = {
+       [IFLA_EVENT_NONE] = "NONE",
+       [IFLA_EVENT_REBOOT] = "REBOOT",
+       [IFLA_EVENT_FEATURES] = "FEATURE CHANGE",
+       [IFLA_EVENT_BONDING_FAILOVER] = "BONDING FAILOVER",
+       [IFLA_EVENT_NOTIFY_PEERS] = "NOTIFY PEERS",
+       [IFLA_EVENT_IGMP_RESEND] = "RESEND IGMP",
+       [IFLA_EVENT_BONDING_OPTIONS] = "BONDING OPTION"
+};
+
+static void print_link_event(FILE *f, __u32 event)
+{
+       if (event >= ARRAY_SIZE(link_events))
+               fprintf(f, "event %d ", event);
+       else {
+               if (event)
+                       fprintf(f, "event %s ", link_events[event]);
+       }
+}
+
 int print_linkinfo(const struct sockaddr_nl *who,
                   struct nlmsghdr *n, void *arg)
 {
@@ -842,6 +862,9 @@ int print_linkinfo(const struct sockaddr_nl *who,
        if (filter.showqueue)
                print_queuelen(fp, tb);
 
+       if (tb[IFLA_EVENT])
+               print_link_event(fp, rta_getattr_u32(tb[IFLA_EVENT]));
+
        if (!filter.family || filter.family == AF_PACKET || show_details) {
                SPRINT_BUF(b1);
                fprintf(fp, "%s", _SL_);