netdev - [patch iproute2 RFC v3 4/5] iproute2: add support for dummyswport

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Date:	Thu, 17 Apr 2014 14:17:32 +0200
From:	Jiri Pirko <jiri@...nulli.us>
To:	netdev@...r.kernel.org
Cc:	davem@...emloft.net, nhorman@...driver.com, andy@...yhouse.net,
	tgraf@...g.ch, dborkman@...hat.com, ogerlitz@...lanox.com,
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	ben@...adent.org.uk, stephen@...workplumber.org,
	jeffrey.t.kirsher@...el.com, vyasevic@...hat.com,
	xiyou.wangcong@...il.com, john.r.fastabend@...el.com,
	edumazet@...gle.com, jhs@...atatu.com, sfeldma@...ulusnetworks.com,
	f.fainelli@...il.com, roopa@...ulusnetworks.com,
	linville@...driver.com, dev@...nvswitch.org, jasowang@...hat.com,
	ebiederm@...ssion.com, nicolas.dichtel@...nd.com,
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	Neil.Jerram@...aswitch.com
Subject: [patch iproute2 RFC v3 4/5] iproute2: add support for dummyswport

Signed-off-by: Jiri Pirko <jiri@...nulli.us>
---
 include/linux/if_link.h |  9 ++++++++
 ip/Makefile             |  3 ++-
 ip/iplink_dummyswport.c | 56 +++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 67 insertions(+), 1 deletion(-)
 create mode 100644 ip/iplink_dummyswport.c

diff --git a/include/linux/if_link.h b/include/linux/if_link.h
index 2932453..f2fdb85 100644
--- a/include/linux/if_link.h
+++ b/include/linux/if_link.h
@@ -544,4 +544,13 @@ enum {
 
 #define IFLA_HSR_MAX (__IFLA_HSR_MAX - 1)
 
+/* DUMMYSWPORT section */
+enum {
+	IFLA_DUMMYSWPORT_UNSPEC,
+	IFLA_DYMMYSWPORT_PHYS_SWITCH_ID,
+	__IFLA_DUMMYSWPORT_MAX,
+};
+
+#define IFLA_DUMMYSWPORT_MAX (__IFLA_DUMMYSWPORT_MAX - 1)
+
 #endif /* _LINUX_IF_LINK_H */
diff --git a/ip/Makefile b/ip/Makefile
index 713adf5..35546e5 100644
--- a/ip/Makefile
+++ b/ip/Makefile
@@ -5,7 +5,8 @@ IPOBJ=ip.o ipaddress.o ipaddrlabel.o iproute.o iprule.o ipnetns.o \
     iplink_vlan.o link_veth.o link_gre.o iplink_can.o \
     iplink_macvlan.o iplink_macvtap.o ipl2tp.o link_vti.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
+    link_iptnl.o link_gre6.o iplink_bond.o iplink_bond_slave.o iplink_hsr.o \
+    iplink_dummyswport.o \
 
 RTMONOBJ=rtmon.o
 
diff --git a/ip/iplink_dummyswport.c b/ip/iplink_dummyswport.c
new file mode 100644
index 0000000..64f1a02
--- /dev/null
+++ b/ip/iplink_dummyswport.c
@@ -0,0 +1,56 @@
+/*
+ * iplink_dummyswport.c		dummy switch port 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:     Jiri Pirko <jiri@...nulli.us>
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <asm/types.h>
+#include <linux/if_link.h>
+#include <net/if.h>
+
+#include "rt_names.h"
+#include "utils.h"
+#include "ip_common.h"
+
+static void explain(void)
+{
+	fprintf(stderr, "Usage: ... dummyswport swid SWITCH_ID\n");
+}
+
+static int dummyswport_parse_opt(struct link_util *lu, int argc, char **argv,
+				 struct nlmsghdr *n)
+{
+	while (argc > 0) {
+		if (matches(*argv, "swid") == 0) {
+			__u8 buf[32];
+
+			NEXT_ARG();
+			if (!hexstring_a2n(*argv, buf, sizeof(buf)))
+				invarg("invalid \"swid\" value\n", *argv);
+			addattr_l(n, 1024, IFLA_DYMMYSWPORT_PHYS_SWITCH_ID,
+				  buf, strlen(*argv) / 2);
+		} else {
+			fprintf(stderr, "dummyswport: unknown option \"%s\"?\n", *argv);
+			explain();
+			return -1;
+		}
+		argc--, argv++;
+	}
+	return 0;
+}
+
+struct link_util dummyswport_link_util = {
+	.id		= "dummyswport",
+	.maxattr	= IFLA_DUMMYSWPORT_MAX,
+	.parse_opt	= dummyswport_parse_opt,
+};
-- 
1.9.0

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