[patch net-next 0/5] bridge: implement rtnl_link options for getting and setting bridge options

[patch net-next 0/5] bridge: implement rtnl_link options for getting and setting bridge options

[Jiri Pirko]

So far, only sysfs is complete interface for getting and setting bridge
options. This patchset follows-up on the similar bonding code and
allows userspace to get/set bridge master/port options using Netlink
IFLA_INFO_DATA/IFLA_INFO_SLAVE_DATA attr.

Jiri Pirko (5):
  bridge: switch order of rx_handler reg and upper dev link
  bridge: implement rtnl_link_ops->get_slave_size and
    rtnl_link_ops->fill_slave_info
  bridge: implement rtnl_link_ops->slave_changelink
  bridge: implement rtnl_link_ops->get_size and rtnl_link_ops->fill_info
  bridge: implement rtnl_link_ops->changelink

 include/uapi/linux/if_link.h |  12 +++++
 net/bridge/br_if.c           |  15 +++---
 net/bridge/br_netlink.c      | 109 +++++++++++++++++++++++++++++++++++++++----
 3 files changed, 121 insertions(+), 15 deletions(-)

-- 
1.9.3

[patch net-next 1/5] bridge: switch order of rx_handler reg and upper dev link

[Jiri Pirko]

The thing is that netdev_master_upper_dev_link calls
call_netdevice_notifiers(NETDEV_CHANGEUPPER, dev). That generates rtnl
link message and during that, rtnl_link_ops->fill_slave_info is called.
But with current ordering, rx_handler and IFF_BRIDGE_PORT are not set
yet so there would have to be check for that in fill_slave_info callback.

Resolve this by reordering to similar what bonding and team does to
avoid the check.

Also add removal of IFF_BRIDGE_PORT flag into error path.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
---
 net/bridge/br_if.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index 078d336..a9f54a9 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -252,12 +252,12 @@ static void del_nbp(struct net_bridge_port *p)
 	br_fdb_delete_by_port(br, p, 1);
 	nbp_update_port_count(br);
 
+	netdev_upper_dev_unlink(dev, br->dev);
+
 	dev->priv_flags &= ~IFF_BRIDGE_PORT;
 
 	netdev_rx_handler_unregister(dev);
 
-	netdev_upper_dev_unlink(dev, br->dev);
-
 	br_multicast_del_port(p);
 
 	kobject_uevent(&p->kobj, KOBJ_REMOVE);
@@ -476,16 +476,16 @@ int br_add_if(struct net_bridge *br, struct net_device *dev)
 	if (err)
 		goto err3;
 
-	err = netdev_master_upper_dev_link(dev, br->dev);
+	err = netdev_rx_handler_register(dev, br_handle_frame, p);
 	if (err)
 		goto err4;
 
-	err = netdev_rx_handler_register(dev, br_handle_frame, p);
+	dev->priv_flags |= IFF_BRIDGE_PORT;
+
+	err = netdev_master_upper_dev_link(dev, br->dev);
 	if (err)
 		goto err5;
 
-	dev->priv_flags |= IFF_BRIDGE_PORT;
-
 	dev_disable_lro(dev);
 
 	list_add_rcu(&p->list, &br->port_list);
@@ -520,7 +520,8 @@ int br_add_if(struct net_bridge *br, struct net_device *dev)
 	return 0;
 
 err5:
-	netdev_upper_dev_unlink(dev, br->dev);
+	dev->priv_flags &= ~IFF_BRIDGE_PORT;
+	netdev_rx_handler_unregister(dev);
 err4:
 	br_netpoll_disable(p);
 err3:
-- 
1.9.3

[patch net-next 2/5] bridge: implement rtnl_link_ops->get_slave_size and rtnl_link_ops->fill_slave_info

[Jiri Pirko]

Allow rtnetlink users to get port info in IFLA_INFO_SLAVE_DATA attr

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
---
 net/bridge/br_netlink.c | 27 +++++++++++++++++++++------
 1 file changed, 21 insertions(+), 6 deletions(-)

diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index cb5fcf6..80d2347 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -461,6 +461,19 @@ static int br_dev_newlink(struct net *src_net, struct net_device *dev,
 	return register_netdevice(dev);
 }
 
+static int br_port_fill_slave_info(struct sk_buff *skb,
+				   const struct net_device *brdev,
+				   const struct net_device *dev)
+{
+	return br_port_fill_attrs(skb, br_port_get_rtnl(dev));
+}
+
+static size_t br_port_get_slave_size(const struct net_device *brdev,
+				     const struct net_device *dev)
+{
+	return br_port_info_size();
+}
+
 static size_t br_get_link_af_size(const struct net_device *dev)
 {
 	struct net_port_vlans *pv;
@@ -485,12 +498,14 @@ static struct rtnl_af_ops br_af_ops = {
 };
 
 struct rtnl_link_ops br_link_ops __read_mostly = {
-	.kind		= "bridge",
-	.priv_size	= sizeof(struct net_bridge),
-	.setup		= br_dev_setup,
-	.validate	= br_validate,
-	.newlink	= br_dev_newlink,
-	.dellink	= br_dev_delete,
+	.kind			= "bridge",
+	.priv_size		= sizeof(struct net_bridge),
+	.setup			= br_dev_setup,
+	.validate		= br_validate,
+	.newlink		= br_dev_newlink,
+	.dellink		= br_dev_delete,
+	.get_slave_size		= br_port_get_slave_size,
+	.fill_slave_info	= br_port_fill_slave_info,
 };
 
 int __init br_netlink_init(void)
-- 
1.9.3

[patch net-next 3/5] bridge: implement rtnl_link_ops->slave_changelink

[Jiri Pirko]

Allow rtnetlink users to set port info via IFLA_INFO_SLAVE_DATA attr

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
---
 net/bridge/br_netlink.c | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index 80d2347..05aeea1 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -276,7 +276,7 @@ static int br_afspec(struct net_bridge *br,
 	return err;
 }
 
-static const struct nla_policy ifla_brport_policy[IFLA_BRPORT_MAX + 1] = {
+static const struct nla_policy br_port_policy[IFLA_BRPORT_MAX + 1] = {
 	[IFLA_BRPORT_STATE]	= { .type = NLA_U8 },
 	[IFLA_BRPORT_COST]	= { .type = NLA_U32 },
 	[IFLA_BRPORT_PRIORITY]	= { .type = NLA_U16 },
@@ -382,7 +382,7 @@ int br_setlink(struct net_device *dev, struct nlmsghdr *nlh)
 	if (p && protinfo) {
 		if (protinfo->nla_type & NLA_F_NESTED) {
 			err = nla_parse_nested(tb, IFLA_BRPORT_MAX,
-					       protinfo, ifla_brport_policy);
+					       protinfo, br_port_policy);
 			if (err)
 				return err;
 
@@ -461,6 +461,16 @@ static int br_dev_newlink(struct net *src_net, struct net_device *dev,
 	return register_netdevice(dev);
 }
 
+static int br_port_slave_changelink(struct net_device *brdev,
+				    struct net_device *dev,
+				    struct nlattr *tb[],
+				    struct nlattr *data[])
+{
+	if (!data)
+		return 0;
+	return br_setport(br_port_get_rtnl(dev), data);
+}
+
 static int br_port_fill_slave_info(struct sk_buff *skb,
 				   const struct net_device *brdev,
 				   const struct net_device *dev)
@@ -504,6 +514,10 @@ struct rtnl_link_ops br_link_ops __read_mostly = {
 	.validate		= br_validate,
 	.newlink		= br_dev_newlink,
 	.dellink		= br_dev_delete,
+
+	.slave_maxtype		= IFLA_BRPORT_MAX,
+	.slave_policy		= br_port_policy,
+	.slave_changelink	= br_port_slave_changelink,
 	.get_slave_size		= br_port_get_slave_size,
 	.fill_slave_info	= br_port_fill_slave_info,
 };
-- 
1.9.3

[patch net-next 4/5] bridge: implement rtnl_link_ops->get_size and rtnl_link_ops->fill_info

[Jiri Pirko]

Allow rtnetlink users to get bridge master info in IFLA_INFO_DATA attr
This initial part implements forward_delay, hello_time, max_age options.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
---
 include/uapi/linux/if_link.h | 12 ++++++++++++
 net/bridge/br_netlink.c      | 25 +++++++++++++++++++++++++
 2 files changed, 37 insertions(+)

diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index ff95760..c80f95f 100644
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h
@@ -215,6 +215,18 @@ enum in6_addr_gen_mode {
 	IN6_ADDR_GEN_MODE_NONE,
 };
 
+/* Bridge section */
+
+enum {
+	IFLA_BR_UNSPEC,
+	IFLA_BR_FORWARD_DELAY,
+	IFLA_BR_HELLO_TIME,
+	IFLA_BR_MAX_AGE,
+	__IFLA_BR_MAX,
+};
+
+#define IFLA_BR_MAX	(__IFLA_BR_MAX - 1)
+
 enum {
 	BRIDGE_MODE_UNSPEC,
 	BRIDGE_MODE_HAIRPIN,
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index 05aeea1..bcac09f 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -484,6 +484,29 @@ static size_t br_port_get_slave_size(const struct net_device *brdev,
 	return br_port_info_size();
 }
 
+static size_t br_get_size(const struct net_device *brdev)
+{
+	return nla_total_size(sizeof(u32)) +	/* IFLA_BR_FORWARD_DELAY  */
+	       nla_total_size(sizeof(u32)) +	/* IFLA_BR_HELLO_TIME */
+	       nla_total_size(sizeof(u32)) +	/* IFLA_BR_MAX_AGE */
+	       0;
+}
+
+static int br_fill_info(struct sk_buff *skb, const struct net_device *brdev)
+{
+	struct net_bridge *br = netdev_priv(brdev);
+	u32 forward_delay = jiffies_to_clock_t(br->forward_delay);
+	u32 hello_time = jiffies_to_clock_t(br->hello_time);
+	u32 age_time = jiffies_to_clock_t(br->max_age);
+
+	if (nla_put_u32(skb, IFLA_BR_FORWARD_DELAY, forward_delay) ||
+	    nla_put_u32(skb, IFLA_BR_HELLO_TIME, hello_time) ||
+	    nla_put_u32(skb, IFLA_BR_MAX_AGE, age_time))
+		return -EMSGSIZE;
+
+	return 0;
+}
+
 static size_t br_get_link_af_size(const struct net_device *dev)
 {
 	struct net_port_vlans *pv;
@@ -514,6 +537,8 @@ struct rtnl_link_ops br_link_ops __read_mostly = {
 	.validate		= br_validate,
 	.newlink		= br_dev_newlink,
 	.dellink		= br_dev_delete,
+	.get_size		= br_get_size,
+	.fill_info		= br_fill_info,
 
 	.slave_maxtype		= IFLA_BRPORT_MAX,
 	.slave_policy		= br_port_policy,
-- 
1.9.3

[patch net-next 5/5] bridge: implement rtnl_link_ops->changelink

[Jiri Pirko]

Allow rtnetlink users to set bridge master info via IFLA_INFO_DATA attr
This initial part implements forward_delay, hello_time, max_age options.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
---
 net/bridge/br_netlink.c | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index bcac09f..7c97a26 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -484,6 +484,42 @@ static size_t br_port_get_slave_size(const struct net_device *brdev,
 	return br_port_info_size();
 }
 
+static const struct nla_policy br_policy[IFLA_BR_MAX + 1] = {
+	[IFLA_BR_FORWARD_DELAY]	= { .type = NLA_U32 },
+	[IFLA_BR_HELLO_TIME]	= { .type = NLA_U32 },
+	[IFLA_BR_MAX_AGE]	= { .type = NLA_U32 },
+};
+
+static int br_changelink(struct net_device *brdev, struct nlattr *tb[],
+			 struct nlattr *data[])
+{
+	struct net_bridge *br = netdev_priv(brdev);
+	int err;
+
+	if (!data)
+		return 0;
+
+	if (data[IFLA_BR_FORWARD_DELAY]) {
+		err = br_set_forward_delay(br, nla_get_u32(data[IFLA_BR_FORWARD_DELAY]));
+		if (err)
+			return err;
+	}
+
+	if (data[IFLA_BR_HELLO_TIME]) {
+		err = br_set_hello_time(br, nla_get_u32(data[IFLA_BR_HELLO_TIME]));
+		if (err)
+			return err;
+	}
+
+	if (data[IFLA_BR_MAX_AGE]) {
+		err = br_set_max_age(br, nla_get_u32(data[IFLA_BR_MAX_AGE]));
+		if (err)
+			return err;
+	}
+
+	return 0;
+}
+
 static size_t br_get_size(const struct net_device *brdev)
 {
 	return nla_total_size(sizeof(u32)) +	/* IFLA_BR_FORWARD_DELAY  */
@@ -534,8 +570,11 @@ struct rtnl_link_ops br_link_ops __read_mostly = {
 	.kind			= "bridge",
 	.priv_size		= sizeof(struct net_bridge),
 	.setup			= br_dev_setup,
+	.maxtype		= IFLA_BRPORT_MAX,
+	.policy			= br_policy,
 	.validate		= br_validate,
 	.newlink		= br_dev_newlink,
+	.changelink		= br_changelink,
 	.dellink		= br_dev_delete,
 	.get_size		= br_get_size,
 	.fill_info		= br_fill_info,
-- 
1.9.3

[patch iproute2 1/2] add bridge_slave device support

[Jiri Pirko]

Note this depends on "iproute2: allow to change slave options via
type_slave"

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
---
 ip/Makefile              |   3 +-
 ip/iplink_bridge_slave.c | 181 +++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 183 insertions(+), 1 deletion(-)
 create mode 100644 ip/iplink_bridge_slave.c

diff --git a/ip/Makefile b/ip/Makefile
index 713adf5..0c0b831 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_bridge_slave.o
 
 RTMONOBJ=rtmon.o
 
diff --git a/ip/iplink_bridge_slave.c b/ip/iplink_bridge_slave.c
new file mode 100644
index 0000000..a285185
--- /dev/null
+++ b/ip/iplink_bridge_slave.c
@@ -0,0 +1,181 @@
+/*
+ * iplink_bridge_slave.c	Bridge slave 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@resnulli.us>
+ */
+
+#include <stdio.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <linux/if_link.h>
+#include <linux/if_bridge.h>
+
+#include "rt_names.h"
+#include "utils.h"
+#include "ip_common.h"
+
+static void explain(void)
+{
+	fprintf(stderr,
+		"Usage: ... bridge_slave [ state STATE ] [ priority PRIO ] [cost COST ]\n"
+		"                        [ guard {on | off} ]\n"
+		"                        [ hairpin {on | off} ] \n"
+		"                        [ fastleave {on | off} ]\n"
+		"                        [ root_block {on | off} ]\n"
+		"                        [ learning {on | off} ]\n"
+		"                        [ flood {on | off} ]\n"
+	);
+}
+
+static const char *port_states[] = {
+	[BR_STATE_DISABLED] = "disabled",
+	[BR_STATE_LISTENING] = "listening",
+	[BR_STATE_LEARNING] = "learning",
+	[BR_STATE_FORWARDING] = "forwarding",
+	[BR_STATE_BLOCKING] = "blocking",
+};
+
+static void print_portstate(FILE *f, __u8 state)
+{
+	if (state <= BR_STATE_BLOCKING)
+		fprintf(f, "state %s ", port_states[state]);
+	else
+		fprintf(f, "state (%d) ", state);
+}
+
+static void print_onoff(FILE *f, char *flag, __u8 val)
+{
+	fprintf(f, "%s %s ", flag, val ? "on" : "off");
+}
+
+static void bridge_slave_print_opt(struct link_util *lu, FILE *f,
+				   struct rtattr *tb[])
+{
+	if (!tb)
+		return;
+
+	if (tb[IFLA_BRPORT_STATE])
+		print_portstate(f, rta_getattr_u8(tb[IFLA_BRPORT_STATE]));
+
+	if (tb[IFLA_BRPORT_PRIORITY])
+		fprintf(f, "priority %d ",
+			rta_getattr_u16(tb[IFLA_BRPORT_PRIORITY]));
+
+	if (tb[IFLA_BRPORT_COST])
+		fprintf(f, "cost %d ",
+			rta_getattr_u32(tb[IFLA_BRPORT_COST]));
+
+	if (tb[IFLA_BRPORT_MODE])
+		print_onoff(f, "hairpin",
+			    rta_getattr_u8(tb[IFLA_BRPORT_MODE]));
+
+	if (tb[IFLA_BRPORT_GUARD])
+		print_onoff(f, "guard",
+			    rta_getattr_u8(tb[IFLA_BRPORT_GUARD]));
+
+	if (tb[IFLA_BRPORT_PROTECT])
+		print_onoff(f, "root_block",
+			    rta_getattr_u8(tb[IFLA_BRPORT_PROTECT]));
+
+	if (tb[IFLA_BRPORT_FAST_LEAVE])
+		print_onoff(f, "fastleave",
+			    rta_getattr_u8(tb[IFLA_BRPORT_FAST_LEAVE]));
+
+	if (tb[IFLA_BRPORT_LEARNING])
+		print_onoff(f, "learning",
+			rta_getattr_u8(tb[IFLA_BRPORT_LEARNING]));
+
+	if (tb[IFLA_BRPORT_UNICAST_FLOOD])
+		print_onoff(f, "flood",
+			rta_getattr_u8(tb[IFLA_BRPORT_UNICAST_FLOOD]));
+}
+
+static void bridge_slave_parse_on_off(char *arg_name, char *arg_val,
+				      struct nlmsghdr *n, int type)
+{
+	__u8 val;
+
+	if (strcmp(arg_val, "on") == 0)
+		val = 1;
+	else if (strcmp(arg_val, "off") == 0)
+		val = 0;
+	else
+		invarg("should be \"on\" or \"off\"", arg_name);
+
+	addattr8(n, 1024, type, val);
+}
+
+static int bridge_slave_parse_opt(struct link_util *lu, int argc, char **argv,
+				  struct nlmsghdr *n)
+{
+	__u8 state;
+	__u16 priority;
+	__u32 cost;
+
+	while (argc > 0) {
+		if (matches(*argv, "state") == 0) {
+			NEXT_ARG();
+			if (get_u8(&state, *argv, 0))
+				invarg("state is invalid", *argv);
+			addattr8(n, 1024, IFLA_BRPORT_STATE, state);
+		} else if (matches(*argv, "priority") == 0) {
+			NEXT_ARG();
+			if (get_u16(&priority, *argv, 0))
+				invarg("priority is invalid", *argv);
+			addattr16(n, 1024, IFLA_BRPORT_PRIORITY, priority);
+		} else if (matches(*argv, "cost") == 0) {
+			NEXT_ARG();
+			if (get_u32(&cost, *argv, 0))
+				invarg("cost is invalid", *argv);
+			addattr32(n, 1024, IFLA_BRPORT_COST, cost);
+		} else if (matches(*argv, "hairpin") == 0) {
+			NEXT_ARG();
+			bridge_slave_parse_on_off("hairpin", *argv, n,
+						  IFLA_BRPORT_MODE);
+		} else if (matches(*argv, "guard") == 0) {
+			NEXT_ARG();
+			bridge_slave_parse_on_off("guard", *argv, n,
+						  IFLA_BRPORT_GUARD);
+		} else if (matches(*argv, "root_block") == 0) {
+			NEXT_ARG();
+			bridge_slave_parse_on_off("root_block", *argv, n,
+						  IFLA_BRPORT_PROTECT);
+		} else if (matches(*argv, "fastleave") == 0) {
+			NEXT_ARG();
+			bridge_slave_parse_on_off("fastleave", *argv, n,
+						  IFLA_BRPORT_FAST_LEAVE);
+		} else if (matches(*argv, "learning") == 0) {
+			NEXT_ARG();
+			bridge_slave_parse_on_off("learning", *argv, n,
+						  IFLA_BRPORT_LEARNING);
+		} else if (matches(*argv, "flood") == 0) {
+			NEXT_ARG();
+			bridge_slave_parse_on_off("flood", *argv, n,
+						  IFLA_BRPORT_UNICAST_FLOOD);
+		} else if (matches(*argv, "help") == 0) {
+			explain();
+			return -1;
+		} else {
+			fprintf(stderr, "bridge_slave: unknown option \"%s\"?\n",
+				*argv);
+			explain();
+			return -1;
+		}
+		argc--, argv++;
+	}
+
+	return 0;
+}
+
+struct link_util bridge_slave_link_util = {
+	.id		= "bridge",
+	.maxattr	= IFLA_BRPORT_MAX,
+	.print_opt	= bridge_slave_print_opt,
+	.parse_opt	= bridge_slave_parse_opt,
+	.slave		= true,
+};
-- 
1.9.3

[patch iproute2 2/2] add bridge master device support

[Jiri Pirko]

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
---
 include/linux/if_link.h | 12 +++++++
 ip/Makefile             |  2 +-
 ip/iplink_bridge.c      | 93 +++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 106 insertions(+), 1 deletion(-)
 create mode 100644 ip/iplink_bridge.c

diff --git a/include/linux/if_link.h b/include/linux/if_link.h
index 39cb62c..e9e6f03 100644
--- a/include/linux/if_link.h
+++ b/include/linux/if_link.h
@@ -213,6 +213,18 @@ enum in6_addr_gen_mode {
 	IN6_ADDR_GEN_MODE_NONE,
 };
 
+/* Bridge section */
+
+enum {
+	IFLA_BR_UNSPEC,
+	IFLA_BR_FORWARD_DELAY,
+	IFLA_BR_HELLO_TIME,
+	IFLA_BR_MAX_AGE,
+	__IFLA_BR_MAX,
+};
+
+#define IFLA_BR_MAX	(__IFLA_BR_MAX - 1)
+
 enum {
 	BRIDGE_MODE_UNSPEC,
 	BRIDGE_MODE_HAIRPIN,
diff --git a/ip/Makefile b/ip/Makefile
index 0c0b831..381f971 100644
--- a/ip/Makefile
+++ b/ip/Makefile
@@ -6,7 +6,7 @@ IPOBJ=ip.o ipaddress.o ipaddrlabel.o iproute.o iprule.o ipnetns.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 \
-    iplink_bridge_slave.o
+    iplink_bridge.o iplink_bridge_slave.o
 
 RTMONOBJ=rtmon.o
 
diff --git a/ip/iplink_bridge.c b/ip/iplink_bridge.c
new file mode 100644
index 0000000..0cea7d1
--- /dev/null
+++ b/ip/iplink_bridge.c
@@ -0,0 +1,93 @@
+/*
+ * iplink_bridge.c	Bridge 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@resnulli.us>
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <linux/if_link.h>
+
+#include "utils.h"
+#include "ip_common.h"
+
+static void explain(void)
+{
+	fprintf(stderr,
+		"Usage: ... bridge [ forward_delay FORWARD_DELAY ]\n"
+		"                  [ hello_time HELLO_TIME ]\n"
+		"                  [ max_age MAX_AGE ]\n"
+	);
+}
+
+static int bridge_parse_opt(struct link_util *lu, int argc, char **argv,
+			    struct nlmsghdr *n)
+{
+	__u32 val;
+
+	while (argc > 0) {
+		if (matches(*argv, "forward_delay") == 0) {
+			NEXT_ARG();
+			if (get_u32(&val, *argv, 0)) {
+				invarg("invalid forward_delay", *argv);
+				return -1;
+			}
+			addattr32(n, 1024, IFLA_BR_FORWARD_DELAY, val);
+		} else if (matches(*argv, "hello_time") == 0) {
+			NEXT_ARG();
+			if (get_u32(&val, *argv, 0)) {
+				invarg("invalid hello_time", *argv);
+				return -1;
+			}
+			addattr32(n, 1024, IFLA_BR_HELLO_TIME, val);
+		} else if (matches(*argv, "max_age") == 0) {
+			NEXT_ARG();
+			if (get_u32(&val, *argv, 0)) {
+				invarg("invalid max_age", *argv);
+				return -1;
+			}
+			addattr32(n, 1024, IFLA_BR_MAX_AGE, val);
+		} else if (matches(*argv, "help") == 0) {
+			explain();
+			return -1;
+		} else {
+			fprintf(stderr, "bridge: unknown command \"%s\"?\n", *argv);
+			explain();
+			return -1;
+		}
+		argc--, argv++;
+	}
+
+	return 0;
+}
+
+static void bridge_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
+{
+	if (!tb)
+		return;
+
+	if (tb[IFLA_BR_FORWARD_DELAY])
+		fprintf(f, "forward_delay %u ",
+			rta_getattr_u32(tb[IFLA_BR_FORWARD_DELAY]));
+
+	if (tb[IFLA_BR_HELLO_TIME])
+		fprintf(f, "hello_time %u ",
+			rta_getattr_u32(tb[IFLA_BR_HELLO_TIME]));
+
+	if (tb[IFLA_BR_MAX_AGE])
+		fprintf(f, "max_age %u ",
+			rta_getattr_u32(tb[IFLA_BR_MAX_AGE]));
+}
+
+struct link_util bridge_link_util = {
+	.id		= "bridge",
+	.maxattr	= IFLA_BR_MAX,
+	.parse_opt	= bridge_parse_opt,
+	.print_opt	= bridge_print_opt,
+};
-- 
1.9.3

Re: [patch net-next 0/5] bridge: implement rtnl_link options for getting and setting bridge options

[Stephen Hemminger]

On Fri,  5 Sep 2014 15:51:27 +0200
Jiri Pirko <jiri@resnulli.us> wrote:

> So far, only sysfs is complete interface for getting and setting bridge
> options. This patchset follows-up on the similar bonding code and
> allows userspace to get/set bridge master/port options using Netlink
> IFLA_INFO_DATA/IFLA_INFO_SLAVE_DATA attr.
> 
> Jiri Pirko (5):
>   bridge: switch order of rx_handler reg and upper dev link
>   bridge: implement rtnl_link_ops->get_slave_size and
>     rtnl_link_ops->fill_slave_info
>   bridge: implement rtnl_link_ops->slave_changelink
>   bridge: implement rtnl_link_ops->get_size and rtnl_link_ops->fill_info
>   bridge: implement rtnl_link_ops->changelink
> 
>  include/uapi/linux/if_link.h |  12 +++++
>  net/bridge/br_if.c           |  15 +++---
>  net/bridge/br_netlink.c      | 109 +++++++++++++++++++++++++++++++++++++++----
>  3 files changed, 121 insertions(+), 15 deletions(-)
> 

Looks good, I will try and go over in more detail and look for
any specific issues.

Re: [patch net-next 0/5] bridge: implement rtnl_link options for getting and setting bridge options

[David Miller]

From: Jiri Pirko <jiri@resnulli.us>
Date: Fri,  5 Sep 2014 15:51:27 +0200

> So far, only sysfs is complete interface for getting and setting bridge
> options. This patchset follows-up on the similar bonding code and
> allows userspace to get/set bridge master/port options using Netlink
> IFLA_INFO_DATA/IFLA_INFO_SLAVE_DATA attr.

Stephen, please review this series, thanks.

Re: [patch net-next 0/5] bridge: implement rtnl_link options for getting and setting bridge options

[David Miller]

From: Jiri Pirko <jiri@resnulli.us>
Date: Fri,  5 Sep 2014 15:51:27 +0200

> So far, only sysfs is complete interface for getting and setting bridge
> options. This patchset follows-up on the similar bonding code and
> allows userspace to get/set bridge master/port options using Netlink
> IFLA_INFO_DATA/IFLA_INFO_SLAVE_DATA attr.

Series applied, thanks Jiri.

Re: [patch iproute2 1/2] add bridge_slave device support

[Stephen Hemminger]

On Fri,  5 Sep 2014 15:55:08 +0200
Jiri Pirko <jiri@resnulli.us> wrote:

> Note this depends on "iproute2: allow to change slave options via
> type_slave"
> 
> Signed-off-by: Jiri Pirko <jiri@resnulli.us>
> ---
>  ip/Makefile              |   3 +-
>  ip/iplink_bridge_slave.c | 181 +++++++++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 183 insertions(+), 1 deletion(-)
>  create mode 100644 ip/iplink_bridge_slave.c

Both applied

Re: [patch iproute2 1/2] add bridge_slave device support

[Stephen Hemminger]

On Fri,  5 Sep 2014 15:55:08 +0200
Jiri Pirko <jiri@resnulli.us> wrote:

> Note this depends on "iproute2: allow to change slave options via
> type_slave"
> 
> Signed-off-by: Jiri Pirko <jiri@resnulli.us>

The iproute portion has to go in net-next not master branch of iproute2

Re: [patch iproute2 1/2] add bridge_slave device support

[Or Gerlitz]

On Fri, Sep 5, 2014 at 4:55 PM, Jiri Pirko <jiri@resnulli.us> wrote:
> Note this depends on "iproute2: allow to change slave options via
> type_slave"

OK, but how about sparing few words what this patch does?

Re: [patch iproute2 1/2] add bridge_slave device support

[Jiri Pirko]

Mon, Sep 29, 2014 at 08:20:00PM CEST, gerlitz.or@gmail.com wrote:
>On Fri, Sep 5, 2014 at 4:55 PM, Jiri Pirko <jiri@resnulli.us> wrote:
>> Note this depends on "iproute2: allow to change slave options via
>> type_slave"
>
>OK, but how about sparing few words what this patch does?

Sorry, I thought it is obvious. It allows to use IFLA_INFO_SLAVE_DATA to
get/set bridge port options.