Allow user to create a vrf device and specify its table binding.
Based on the iplink_vlan implementation.
Signed-off-by: Shrijeet Mukherjee <s...@cumulusnetworks.com>
Signed-off-by: David Ahern <d...@cumulusnetworks.com>
---
include/linux/if_link.h | 8 +++++
ip/Makefile | 2 +-
ip/iplink.c | 2 +-
ip/iplink_vrf.c | 88 +++++++++++++++++++++++++++++++++++++++++++++++++
4 files changed, 98 insertions(+), 2 deletions(-)
create mode 100644 ip/iplink_vrf.c
diff --git a/include/linux/if_link.h b/include/linux/if_link.h
index 8df6a8466839..28872fbf6814 100644
--- a/include/linux/if_link.h
+++ b/include/linux/if_link.h
@@ -337,6 +337,14 @@ enum macvlan_macaddr_mode {
#define MACVLAN_FLAG_NOPROMISC 1
+/* VRF section */
+enum {
+ IFLA_VRF_UNSPEC,
+ IFLA_VRF_TABLE,
+ __IFLA_VRF_MAX
+};
+
+#define IFLA_VRF_MAX (__IFLA_VRF_MAX - 1)
/* IPVLAN section */
enum {
IFLA_IPVLAN_UNSPEC,
diff --git a/ip/Makefile b/ip/Makefile
index 77653ecc5785..d8b38ac2e44b 100644
--- a/ip/Makefile
+++ b/ip/Makefile
@@ -7,7 +7,7 @@ IPOBJ=ip.o ipaddress.o ipaddrlabel.o iproute.o iprule.o
ipnetns.o \
iplink_vxlan.o tcp_metrics.o iplink_ipoib.o ipnetconf.o link_ip6tnl.o \
link_iptnl.o link_gre6.o iplink_bond.o iplink_bond_slave.o iplink_hsr.o \
iplink_bridge.o iplink_bridge_slave.o ipfou.o iplink_ipvlan.o \
- iplink_geneve.o
+ iplink_geneve.o iplink_vrf.o
RTMONOBJ=rtmon.o
diff --git a/ip/iplink.c b/ip/iplink.c
index e296e6f611b8..892e8bc8808b 100644
--- a/ip/iplink.c
+++ b/ip/iplink.c
@@ -93,7 +93,7 @@ void iplink_usage(void)
fprintf(stderr, "TYPE := { vlan | veth | vcan | dummy | ifb |
macvlan | macvtap |\n");
fprintf(stderr, " bridge | bond | ipoib | ip6tnl |
ipip | sit | vxlan |\n");
fprintf(stderr, " gre | gretap | ip6gre | ip6gretap |
vti | nlmon |\n");
- fprintf(stderr, " bond_slave | ipvlan | geneve }\n");
+ fprintf(stderr, " bond_slave | ipvlan | geneve | vrf
}\n");
}
exit(-1);
}
diff --git a/ip/iplink_vrf.c b/ip/iplink_vrf.c
new file mode 100644
index 000000000000..8d66802cf940
--- /dev/null
+++ b/ip/iplink_vrf.c
@@ -0,0 +1,88 @@
+/* iplink_vrf.c VRF device support
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ * Authors: Shrijeet Mukherjee <s...@cumulusnetworks.com>
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <linux/if_link.h>
+
+#include "rt_names.h"
+#include "utils.h"
+#include "ip_common.h"
+
+static void vrf_explain(FILE *f)
+{
+ fprintf(f, "Usage: ... vrf table TABLEID \n");
+}
+
+static void explain(void)
+{
+ vrf_explain(stderr);
+}
+
+static int table_arg(void)
+{
+ fprintf(stderr,"Error: argument of \"table\" must be 0-32767 and
currently unused\n");
+ return -1;
+}
+
+static int vrf_parse_opt(struct link_util *lu, int argc, char **argv,
+ struct nlmsghdr *n)
+{
+ while (argc > 0) {
+ if (matches(*argv, "table") == 0) {
+ __u32 table = 0;
+ NEXT_ARG();
+
+ table = atoi(*argv);
+ if (table < 0 || table > 32767)
+ return table_arg();
+ /* XXX need a table in-use check here */
+ fprintf(stderr, "adding table %d\n", table);
+ addattr32(n, 1024, IFLA_VRF_TABLE, table);
+ } else if (matches(*argv, "help") == 0) {
+ explain();
+ return -1;
+ } else {
+ fprintf(stderr, "vrf: unknown option \"%s\"?\n",
+ *argv);
+ explain();
+ return -1;
+ }
+ argc--, argv++;
+ }
+
+ return 0;
+}
+
+static void vrf_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
+{
+printf("vrf_print_opt ...\n");
+ if (!tb)
+ return;
+
+ if (tb[IFLA_VRF_TABLE])
+ fprintf(f, "table %u ", rta_getattr_u32(tb[IFLA_VRF_TABLE]));
+}
+
+static void vrf_print_help(struct link_util *lu, int argc, char **argv,
+ FILE *f)
+{
+ vrf_explain(f);
+}
+
+struct link_util vrf_link_util = {
+ .id = "vrf",
+ .maxattr = IFLA_VRF_MAX,
+ .parse_opt = vrf_parse_opt,
+ .print_opt = vrf_print_opt,
+ .print_help = vrf_print_help,
+};
--
2.3.2 (Apple Git-55)
--
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