This patch add support for IFLA_GRE_COLLECT_METADATA via the
'external' keyword to the gre link.
Signed-off-by: Paolo Abeni <pab...@redhat.com>
---
ip/link_gre.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/ip/link_gre.c b/ip/link_gre.c
index 58f416c..c85741f 100644
--- a/ip/link_gre.c
+++ b/ip/link_gre.c
@@ -74,6 +74,7 @@ static int gre_parse_opt(struct link_util *lu, int argc, char
**argv,
__u16 encapflags = 0;
__u16 encapsport = 0;
__u16 encapdport = 0;
+ __u8 metadata = 0;
if (!(n->nlmsg_flags & NLM_F_CREATE)) {
memset(&req, 0, sizeof(req));
@@ -148,6 +149,9 @@ get_failed:
encapsport =
rta_getattr_u16(greinfo[IFLA_GRE_ENCAP_SPORT]);
if (greinfo[IFLA_GRE_ENCAP_DPORT])
encapdport =
rta_getattr_u16(greinfo[IFLA_GRE_ENCAP_DPORT]);
+
+ if (greinfo[IFLA_GRE_COLLECT_METADATA])
+ metadata = 1;
}
while (argc > 0) {
@@ -291,6 +295,8 @@ get_failed:
encapflags |= TUNNEL_ENCAP_FLAG_REMCSUM;
} else if (strcmp(*argv, "noencap-remcsum") == 0) {
encapflags |= ~TUNNEL_ENCAP_FLAG_REMCSUM;
+ } else if (strcmp(*argv, "external") == 0) {
+ metadata = 1;
} else
usage();
argc--; argv++;
@@ -325,6 +331,8 @@ get_failed:
addattr16(n, 1024, IFLA_GRE_ENCAP_FLAGS, encapflags);
addattr16(n, 1024, IFLA_GRE_ENCAP_SPORT, htons(encapsport));
addattr16(n, 1024, IFLA_GRE_ENCAP_DPORT, htons(encapdport));
+ if (metadata)
+ addattr_l(n, 1024, IFLA_GRE_COLLECT_METADATA, NULL, 0);
return 0;
}
@@ -413,6 +421,9 @@ static void gre_print_opt(struct link_util *lu, FILE *f,
struct rtattr *tb[])
if (oflags & GRE_CSUM)
fputs("ocsum ", f);
+ if (tb[IFLA_GRE_COLLECT_METADATA])
+ fputs("external ", f);
+
if (tb[IFLA_GRE_ENCAP_TYPE] &&
*(__u16 *)RTA_DATA(tb[IFLA_GRE_ENCAP_TYPE]) != TUNNEL_ENCAP_NONE) {
__u16 type = rta_getattr_u16(tb[IFLA_GRE_ENCAP_TYPE]);
--
1.8.3.1
--
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