iptunnel: add support for mpls/ip to ipip tunnels
Original-Author: Simon Horman <simon.horman@netronome.com>
Signed-off-by: Krister Johansen <kjlx@templeofstupid.com>
diff --git a/ip/link_iptnl.c b/ip/link_iptnl.c
index cf3a9ef..d24e737 100644
--- a/ip/link_iptnl.c
+++ b/ip/link_iptnl.c
@@ -50,6 +50,8 @@
if (sit) {
fprintf(f, " [ mode { ip6ip | ipip | mplsip | any } ]\n");
fprintf(f, " [ isatap ]\n");
+ } else {
+ fprintf(f, " [ mode { ipip | mplsip | any } ]\n");
}
fprintf(f, " [ external ]\n");
fprintf(f, " [ fwmark MARK ]\n");
@@ -251,6 +253,21 @@
proto = 0;
else
invarg("Cannot guess tunnel mode.", *argv);
+ } else if (strcmp(lu->id, "ipip") == 0 &&
+ strcmp(*argv, "mode") == 0) {
+ NEXT_ARG();
+ if (strcmp(*argv, "ipv4/ipv4") == 0 ||
+ strcmp(*argv, "ipip") == 0 ||
+ strcmp(*argv, "ip4ip4") == 0)
+ proto = IPPROTO_IPIP;
+ else if (strcmp(*argv, "mpls/ipv4") == 0 ||
+ strcmp(*argv, "mplsip") == 0)
+ proto = IPPROTO_MPLS;
+ else if (strcmp(*argv, "any/ipv4") == 0 ||
+ strcmp(*argv, "any") == 0)
+ proto = 0;
+ else
+ invarg("Cannot guess tunnel mode.", *argv);
} else if (strcmp(*argv, "noencap") == 0) {
encaptype = TUNNEL_ENCAP_NONE;
} else if (strcmp(*argv, "encap") == 0) {
@@ -343,9 +360,11 @@
addattr16(n, 1024, IFLA_IPTUN_ENCAP_SPORT, htons(encapsport));
addattr16(n, 1024, IFLA_IPTUN_ENCAP_DPORT, htons(encapdport));
+ if (strcmp(lu->id, "ipip") == 0 || strcmp(lu->id, "sit") == 0)
+ addattr8(n, 1024, IFLA_IPTUN_PROTO, proto);
+
if (strcmp(lu->id, "sit") == 0) {
addattr16(n, 1024, IFLA_IPTUN_FLAGS, iflags);
- addattr8(n, 1024, IFLA_IPTUN_PROTO, proto);
if (ip6rdprefixlen) {
addattr_l(n, 1024, IFLA_IPTUN_6RD_PREFIX,
&ip6rdprefix, sizeof(ip6rdprefix));
diff --git a/man/man8/ip-link.8.in b/man/man8/ip-link.8.in
index 994b539..a782712 100644
--- a/man/man8/ip-link.8.in
+++ b/man/man8/ip-link.8.in
@@ -703,8 +703,9 @@
.BI mode " { ip6ip | ipip | mplsip | any } "
- specifies mode in which device should run. "ip6ip" indicates
IPv6-Over-IPv4, "ipip" indicates "IPv4-Over-IPv4", "mplsip" indicates
-MPLS-Over-IPv4, "any" indicates IPv6, IPv4 or MPLS Over IPv4. Only
-supported for SIT where the default is "ip6ip".
+MPLS-Over-IPv4, "any" indicates IPv6, IPv4 or MPLS Over IPv4. Supported for
+SIT where the default is "ip6ip" and IPIP where the default is "ipip".
+IPv6-Over-IPv4 is not supported for IPIP.
.in -8