[PATCH V5 iproute] ip: Add support for netdev events to monitor
From: Vladislav Yasevich <hidden>
Date: 2017-05-25 15:32:22
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Add IFLA_EVENT handling so that event types can be viewed with 'monitor' command. This gives a little more information for why a given message was receivied. Signed-off-by: Vladislav Yasevich <redacted> --- include/linux/if_link.h | 11 +++++++++++ ip/ipaddress.c | 21 +++++++++++++++++++++ 2 files changed, 32 insertions(+)
diff --git a/include/linux/if_link.h b/include/linux/if_link.h
index 5a3a048..7e10274 100644
--- a/include/linux/if_link.h
+++ b/include/linux/if_link.h@@ -157,6 +157,7 @@ enum { IFLA_GSO_MAX_SIZE, IFLA_PAD, IFLA_XDP, + IFLA_EVENT, __IFLA_MAX };
@@ -909,4 +910,14 @@ enum { #define IFLA_XDP_MAX (__IFLA_XDP_MAX - 1) +enum { + IFLA_EVENT_UNSPEC, + IFLA_EVENT_REBOOT, + IFLA_EVENT_FEAT_CHANGE, + IFLA_EVENT_BONDING_FAILOVER, + IFLA_EVENT_NOTIFY_PEERS, + IFLA_EVENT_RESEND_IGMP, + IFLA_EVENT_CHANGE_INFO_DATA, +}; + #endif /* _LINUX_IF_LINK_H */
diff --git a/ip/ipaddress.c b/ip/ipaddress.c
index b8d9c7d..d37b4b2 100644
--- a/ip/ipaddress.c
+++ b/ip/ipaddress.c@@ -753,6 +753,24 @@ int print_linkinfo_brief(const struct sockaddr_nl *who, return 0; } +static const char *netdev_events[] = {"UNKNOWN", + "REBOOT", + "FEATURE_CHANGE", + "BONDING_FAILOVER", + "NOTIFY_PEERS", + "RESEND_IGMP", + "CHANGE_INFO_DATA"}; + +static void print_dev_event(FILE *f, __u32 event) +{ + if (event >= ARRAY_SIZE(netdev_events)) + fprintf(f, "event %d ", event); + else { + if (event) + fprintf(f, "event %s ", netdev_events[event]); + } +} + int print_linkinfo(const struct sockaddr_nl *who, struct nlmsghdr *n, void *arg) {
@@ -858,6 +876,9 @@ int print_linkinfo(const struct sockaddr_nl *who, if (filter.showqueue) print_queuelen(fp, tb); + if (tb[IFLA_EVENT]) + print_dev_event(fp, rta_getattr_u32(tb[IFLA_EVENT])); + if (!filter.family || filter.family == AF_PACKET || show_details) { SPRINT_BUF(b1); fprintf(fp, "%s", _SL_);
--
2.7.4