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Show 'external' link mode in output 

Recently `external` support was added to the tunnel drivers, but there is no way
to introspect this from userspace. This adds support for that.

Now `ip -details link` shows it:

```
7: tunl60@NONE: <NOARP> mtu 1452 qdisc noop state DOWN mode DEFAULT group
default qlen 1
    link/tunnel6 :: brd :: promiscuity 0
    ip6tnl external any remote :: local :: encaplimit 0 hoplimit 0 tclass 0x00 flowlabel 0x00000 (flowinfo 0x00000000) addrgenmode eui64 numtxqueues 1 numrxqueues 1 gso_max_size 65536 gso_max_segs 65535
```

Signed-off-by: Phil Dibowitz <phil@ipom.com>
This commit is contained in:
Phil Dibowitz 2017-12-12 13:54:06 -08:00 committed by Stephen Hemminger
parent 88b428f03f
commit 7b17832445
2 changed files with 6 additions and 0 deletions
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3
ip/link_ip6tnl.c
View File

@ -345,6 +345,9 @@ static void ip6tunnel_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb
if (!tb)
return;
if (tb[IFLA_IPTUN_COLLECT_METADATA])
print_bool(PRINT_ANY, "external", "external ", true);
if (tb[IFLA_IPTUN_FLAGS])
flags = rta_getattr_u32(tb[IFLA_IPTUN_FLAGS]);

3
ip/link_iptnl.c
View File

@ -393,6 +393,9 @@ static void iptunnel_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[
if (!tb)
return;
if (tb[IFLA_IPTUN_COLLECT_METADATA])
print_bool(PRINT_ANY, "external", "external ", true);
if (tb[IFLA_IPTUN_REMOTE]) {
unsigned int addr = rta_getattr_u32(tb[IFLA_IPTUN_REMOTE]);