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Date: Wed, 29 May 2013 13:00:17 +0300
From: Mike Rapoport <mike.rapoport@...ellosystems.com>
To: netdev@...r.kernel.org
Cc: Thomas Graf <tgraf@...g.ch>,
Mike Rapoport <mike.rapoport@...ellosystems.com>
Subject: [PATCH iproute2] vxlan: allow specifying multiple default destinations
Signed-off-by: Mike Rapoport <mike.rapoport@...ellosystems.com>
---
ip/iplink_vxlan.c | 125 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 125 insertions(+)
diff --git a/ip/iplink_vxlan.c b/ip/iplink_vxlan.c
index 1025326..be6c0ac 100644
--- a/ip/iplink_vxlan.c
+++ b/ip/iplink_vxlan.c
@@ -28,11 +28,87 @@ static void explain(void)
fprintf(stderr, " [ port MIN MAX ] [ [no]learning ]\n");
fprintf(stderr, " [ [no]proxy ] [ [no]rsc ]\n");
fprintf(stderr, " [ [no]l2miss ] [ [no]l3miss ]\n");
+ fprintf(stderr, " [ dstadd DST ]\n");
+ fprintf(stderr, " [ dstdel ADDR ]\n");
fprintf(stderr, "\n");
fprintf(stderr, "Where: VNI := 0-16777215\n");
fprintf(stderr, " ADDR := { IP_ADDRESS | any }\n");
fprintf(stderr, " TOS := { NUMBER | inherit }\n");
fprintf(stderr, " TTL := { 1..255 | inherit }\n");
+ fprintf(stderr, " DST := [ ADDR [port PORT] [vni VNI] [via DEV]]\n");
+}
+
+static int vxlan_parse_dstadd(int *argcp, char ***argvp, struct nlmsghdr *n)
+{
+ int argc = *argcp;
+ char **argv = *argvp;
+ __u32 vni, ifindex;
+ __u16 port;
+ struct rtattr *nest;
+ int addr_set = 0;
+
+ nest = addattr_nest(n, 1024, IFLA_VXLAN_REMOTE_NEW);
+
+ while (argc > 0) {
+ if (!matches(*argv, "vni")) {
+ NEXT_ARG();
+ if (get_u32(&vni, *argv, 0) ||
+ vni >= 1u << 24)
+ invarg("invalid id", *argv);
+ addattr32(n, 1024, IFLA_VXLAN_REMOTE_VNI, vni);
+ } else if (!matches(*argv, "port")) {
+ NEXT_ARG();
+ if (get_u16(&port, *argv, 0))
+ invarg("port", *argv);
+ addattr32(n, 1024, IFLA_VXLAN_REMOTE_PORT, htons(port));
+ } else if (!matches(*argv, "via")) {
+ NEXT_ARG();
+ ifindex = if_nametoindex(*argv);
+ addattr32(n, 1024, IFLA_VXLAN_REMOTE_IFINDEX, ifindex);
+ } else {
+ inet_prefix addr;
+ get_prefix(&addr, *argv, AF_UNSPEC);
+ addattr_l(n, 1024, IFLA_VXLAN_REMOTE_ADDR,
+ &addr.data, addr.bytelen);
+ addr_set = 1;
+ }
+ argc--, argv++;
+ }
+
+ if (!addr_set)
+ incomplete_command();
+
+ addattr_nest_end(n, nest);
+
+ *argcp = argc;
+ *argvp = argv;
+ return 0;
+}
+
+static int vxlan_parse_dstdel(int *argcp, char ***argvp, struct nlmsghdr *n)
+{
+ int argc = *argcp;
+ char **argv = *argvp;
+ struct rtattr *nest;
+
+ nest = addattr_nest(n, 1024, IFLA_VXLAN_REMOTE_DEL);
+
+ while (argc > 0) {
+ inet_prefix addr;
+ get_prefix(&addr, *argv, AF_UNSPEC);
+ addattr_l(n, 1024, IFLA_VXLAN_REMOTE_ADDR,
+ &addr.data, addr.bytelen);
+ argc--, argv++;
+ }
+
+ if (argc == *argcp)
+ incomplete_command();
+
+ addattr_nest_end(n, nest);
+
+ *argcp = argc;
+ *argvp = argv;
+ return 0;
}
static int vxlan_parse_opt(struct link_util *lu, int argc, char **argv,
@@ -54,6 +130,7 @@ static int vxlan_parse_opt(struct link_util *lu, int argc, char **argv,
__u32 age = 0;
__u32 maxaddr = 0;
struct ifla_vxlan_port_range range = { 0, 0 };
+ struct rtattr *remotes;
while (argc > 0) {
if (!matches(*argv, "id") ||
@@ -125,6 +202,16 @@ static int vxlan_parse_opt(struct link_util *lu, int argc, char **argv,
invarg("max port", *argv);
range.low = htons(minport);
range.high = htons(maxport);
+ } else if (!matches(*argv, "dstadd")) {
+ NEXT_ARG();
+ remotes = addattr_nest(n, 1024, IFLA_VXLAN_REMOTES);
+ vxlan_parse_dstadd(&argc, &argv, n);
+ addattr_nest_end(n, remotes);
+ } else if (!matches(*argv, "dstdel")) {
+ NEXT_ARG();
+ remotes = addattr_nest(n, 1024, IFLA_VXLAN_REMOTES);
+ vxlan_parse_dstdel(&argc, &argv, n);
+ addattr_nest_end(n, remotes);
} else if (!matches(*argv, "nolearning")) {
learning = 0;
} else if (!matches(*argv, "learning")) {
@@ -187,6 +274,41 @@ static int vxlan_parse_opt(struct link_util *lu, int argc, char **argv,
return 0;
}
+static void vxlan_print_remote(FILE *f, struct rtattr *attr)
+{
+ struct rtattr *tb[IFLA_VXLAN_REMOTE_MAX];
+ char s1[1024];
+
+ parse_rtattr_nested(tb, IFLA_VXLAN_REMOTE_MAX, attr);
+
+ if (tb[IFLA_VXLAN_REMOTE_ADDR]) {
+ struct rtattr *i = tb[IFLA_VXLAN_REMOTE_ADDR];
+ if (RTA_PAYLOAD(i) >= sizeof(struct in6_addr)) {
+ struct in6_addr addr;
+ memcpy(&addr, RTA_DATA(i), sizeof(struct in6_addr));
+ fprintf(f, " %s\n",
+ format_host(AF_INET6, sizeof(struct in6_addr),
+ &addr, s1, sizeof(s1)));
+ } else if (RTA_PAYLOAD(i) >= sizeof(__be32)) {
+ __be32 addr = rta_getattr_u32(i);
+ fprintf(f, " %s\n",
+ format_host(AF_INET, 4, &addr, s1, sizeof(s1)));
+ }
+ }
+}
+
+static void vxlan_print_remotes(FILE *f, struct rtattr *attr)
+{
+ struct rtattr *i;
+ int rem, n = 0;
+
+ fprintf(f, "\n default destinations :\n");
+
+ rem = RTA_PAYLOAD(attr);
+ for (i = RTA_DATA(attr); RTA_OK(i, rem); i = RTA_NEXT(i, rem), n++)
+ vxlan_print_remote(f, i);
+}
+
static void vxlan_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
{
__u32 vni;
@@ -277,6 +399,9 @@ static void vxlan_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
if (tb[IFLA_VXLAN_LIMIT] &&
(maxaddr = rta_getattr_u32(tb[IFLA_VXLAN_LIMIT]) != 0))
fprintf(f, "maxaddr %u ", maxaddr);
+
+ if (tb[IFLA_VXLAN_REMOTES])
+ vxlan_print_remotes(f, tb[IFLA_VXLAN_REMOTES]);
}
struct link_util vxlan_link_util = {
--
1.8.1.5
--
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