[PATCHi iproute2-next] ip: show min and max mtu

[Stephen Hemminger]

From: Stephen Hemminger <sthem...@microsoft.com>

Add min/max MTU to the link details

Signed-off-by: Stephen Hemminger <step...@networkplumber.org>
---
 include/uapi/linux/if_link.h |  2 ++
 ip/ipaddress.c               | 10 ++++++++++
 2 files changed, 12 insertions(+)

diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index 26e8cf8b45aa..8456ff254015 100644
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h
@@ -164,6 +164,8 @@ enum {
        IFLA_CARRIER_UP_COUNT,
        IFLA_CARRIER_DOWN_COUNT,
        IFLA_NEW_IFINDEX,
+       IFLA_MIN_MTU,
+       IFLA_MAX_MTU,
        __IFLA_MAX
 };
 
diff --git a/ip/ipaddress.c b/ip/ipaddress.c
index bcee9ab731ce..85958e1a9cef 100644
--- a/ip/ipaddress.c
+++ b/ip/ipaddress.c
@@ -1012,6 +1012,16 @@ int print_linkinfo(const struct sockaddr_nl *who,
                                   " promiscuity %u ",
                                   rta_getattr_u32(tb[IFLA_PROMISCUITY]));
 
+               if (tb[IFLA_MIN_MTU])
+                       print_uint(PRINT_ANY,
+                                  "min_mtu", "minmtu %u ",
+                                  rta_getattr_u32(tb[IFLA_MIN_MTU]));
+
+               if (tb[IFLA_MAX_MTU])
+                       print_uint(PRINT_ANY,
+                                  "max_mtu", "maxmtu %u ",
+                                  rta_getattr_u32(tb[IFLA_MAX_MTU]));
+
                if (tb[IFLA_LINKINFO])
                        print_linktype(fp, tb[IFLA_LINKINFO]);
 
-- 
2.18.0