From: Stephen Hemminger <sthemmin@microsoft.com>
Date: Fri, 27 Jul 2018 20:30:19 +0000 (-0700)
Subject: ip: show min and max mtu
X-Git-Tag: v4.19.0~86
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e5faf729cb647c0c3d69e4e968b72e8fdad1e662;p=thirdparty%2Fiproute2.git

ip: show min and max mtu

Add min/max MTU to the link details

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---

diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index 26e8cf8b4..8456ff254 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 bcee9ab73..85958e1a9 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]);