[PATCH] ip: Showing peer of veth type dev in ip link (ip cmd side)
From: Masatake YAMATO <hidden>
Date: 2013-10-04 18:28:31
Subsystem:
the rest · Maintainer:
Linus Torvalds
Implement print_opt method to veth to show peer ifindex as ethtool -S does. A patch submitted with following subject is needed: veth: Showing peer of veth type dev in ip link (kernel side) Signed-off-by: Masatake YAMATO <redacted> --- ip/link_veth.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)
diff --git a/ip/link_veth.c b/ip/link_veth.c
index 7730f39..bd84815 100644
--- a/ip/link_veth.c
+++ b/ip/link_veth.c@@ -11,6 +11,7 @@ */ #include <string.h> +#include <inttypes.h> #include <net/if.h> #include <linux/veth.h>
@@ -57,7 +58,22 @@ static int veth_parse_opt(struct link_util *lu, int argc, char **argv, return argc - 1 - err; } +static void veth_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[]) +{ + if (!tb) + return; + + if (tb[VETH_INFO_PEER] && + RTA_PAYLOAD(tb[VETH_INFO_PEER]) < sizeof(__u64)) + return; + + fprintf(f, "peer_ifindex %"PRIu64, + (uint64_t)rta_getattr_u64(tb[VETH_INFO_PEER])); +} + struct link_util veth_link_util = { .id = "veth", + .maxattr = VETH_INFO_MAX, .parse_opt = veth_parse_opt, + .print_opt = veth_print_opt, };
--
1.8.3.1