From e5faf729cb647c0c3d69e4e968b72e8fdad1e662 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Fri, 27 Jul 2018 13:30:19 -0700 Subject: [PATCH] ip: show min and max mtu Add min/max MTU to the link details Signed-off-by: Stephen Hemminger --- 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 26e8cf8b..8456ff25 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 bcee9ab7..85958e1a 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]);