Release 4.11 net/core/rtnetlink.c

/*
 * INET         An implementation of the TCP/IP protocol suite for the LINUX
 *              operating system.  INET is implemented using the  BSD Socket
 *              interface as the means of communication with the user level.
 *
 *              Routing netlink socket interface: protocol independent part.
 *
 * Authors:     Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
 *
 *              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.
 *
 *      Fixes:
 *      Vitaly E. Lavrov                RTA_OK arithmetics was wrong.
 */

#include <linux/errno.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/socket.h>
#include <linux/kernel.h>
#include <linux/timer.h>
#include <linux/string.h>
#include <linux/sockios.h>
#include <linux/net.h>
#include <linux/fcntl.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/capability.h>
#include <linux/skbuff.h>
#include <linux/init.h>
#include <linux/security.h>
#include <linux/mutex.h>
#include <linux/if_addr.h>
#include <linux/if_bridge.h>
#include <linux/if_vlan.h>
#include <linux/pci.h>
#include <linux/etherdevice.h>

#include <linux/uaccess.h>

#include <linux/inet.h>
#include <linux/netdevice.h>
#include <net/switchdev.h>
#include <net/ip.h>
#include <net/protocol.h>
#include <net/arp.h>
#include <net/route.h>
#include <net/udp.h>
#include <net/tcp.h>
#include <net/sock.h>
#include <net/pkt_sched.h>
#include <net/fib_rules.h>
#include <net/rtnetlink.h>
#include <net/net_namespace.h>


struct rtnl_link {
	
rtnl_doit_func		doit;
	
rtnl_dumpit_func	dumpit;
	
rtnl_calcit_func 	calcit;
};

static DEFINE_MUTEX(rtnl_mutex);



void rtnl_lock(void)
{
	mutex_lock(&rtnl_mutex);
}
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EXPORT_SYMBOL(rtnl_lock);


static struct sk_buff *defer_kfree_skb_list;


void rtnl_kfree_skbs(struct sk_buff *head, struct sk_buff *tail)
{
	if (head && tail) {
		tail->next = defer_kfree_skb_list;
		defer_kfree_skb_list = head;
	}
}
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EXPORT_SYMBOL(rtnl_kfree_skbs);



void __rtnl_unlock(void)
{
	struct sk_buff *head = defer_kfree_skb_list;

	defer_kfree_skb_list = NULL;

	mutex_unlock(&rtnl_mutex);

	while (head) {
		struct sk_buff *next = head->next;

		kfree_skb(head);
		cond_resched();
		head = next;
	}
}

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void rtnl_unlock(void)
{
	/* This fellow will unlock it for us. */
	netdev_run_todo();
}
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EXPORT_SYMBOL(rtnl_unlock);



int rtnl_trylock(void)
{
	return mutex_trylock(&rtnl_mutex);
}
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EXPORT_SYMBOL(rtnl_trylock);



int rtnl_is_locked(void)
{
	return mutex_is_locked(&rtnl_mutex);
}
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EXPORT_SYMBOL(rtnl_is_locked);

#ifdef CONFIG_PROVE_LOCKING


bool lockdep_rtnl_is_held(void)
{
	return lockdep_is_held(&rtnl_mutex);
}
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EXPORT_SYMBOL(lockdep_rtnl_is_held);
#endif /* #ifdef CONFIG_PROVE_LOCKING */


static struct rtnl_link *rtnl_msg_handlers[RTNL_FAMILY_MAX + 1];



static inline int rtm_msgindex(int msgtype)
{
	int msgindex = msgtype - RTM_BASE;

	/*
         * msgindex < 0 implies someone tried to register a netlink
         * control code. msgindex >= RTM_NR_MSGTYPES may indicate that
         * the message type has not been added to linux/rtnetlink.h
         */
	BUG_ON(msgindex < 0 || msgindex >= RTM_NR_MSGTYPES);

	return msgindex;
}

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static rtnl_doit_func rtnl_get_doit(int protocol, int msgindex)
{
	struct rtnl_link *tab;

	if (protocol <= RTNL_FAMILY_MAX)
		tab = rtnl_msg_handlers[protocol];
	else
		tab = NULL;

	if (tab == NULL || tab[msgindex].doit == NULL)
		tab = rtnl_msg_handlers[PF_UNSPEC];

	return tab[msgindex].doit;
}

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static rtnl_dumpit_func rtnl_get_dumpit(int protocol, int msgindex)
{
	struct rtnl_link *tab;

	if (protocol <= RTNL_FAMILY_MAX)
		tab = rtnl_msg_handlers[protocol];
	else
		tab = NULL;

	if (tab == NULL || tab[msgindex].dumpit == NULL)
		tab = rtnl_msg_handlers[PF_UNSPEC];

	return tab[msgindex].dumpit;
}

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static rtnl_calcit_func rtnl_get_calcit(int protocol, int msgindex)
{
	struct rtnl_link *tab;

	if (protocol <= RTNL_FAMILY_MAX)
		tab = rtnl_msg_handlers[protocol];
	else
		tab = NULL;

	if (tab == NULL || tab[msgindex].calcit == NULL)
		tab = rtnl_msg_handlers[PF_UNSPEC];

	return tab[msgindex].calcit;
}

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/**
 * __rtnl_register - Register a rtnetlink message type
 * @protocol: Protocol family or PF_UNSPEC
 * @msgtype: rtnetlink message type
 * @doit: Function pointer called for each request message
 * @dumpit: Function pointer called for each dump request (NLM_F_DUMP) message
 * @calcit: Function pointer to calc size of dump message
 *
 * Registers the specified function pointers (at least one of them has
 * to be non-NULL) to be called whenever a request message for the
 * specified protocol family and message type is received.
 *
 * The special protocol family PF_UNSPEC may be used to define fallback
 * function pointers for the case when no entry for the specific protocol
 * family exists.
 *
 * Returns 0 on success or a negative error code.
 */


int __rtnl_register(int protocol, int msgtype,
		    rtnl_doit_func doit, rtnl_dumpit_func dumpit,
		    rtnl_calcit_func calcit)
{
	struct rtnl_link *tab;
	int msgindex;

	BUG_ON(protocol < 0 || protocol > RTNL_FAMILY_MAX);
	msgindex = rtm_msgindex(msgtype);

	tab = rtnl_msg_handlers[protocol];
	if (tab == NULL) {
		tab = kcalloc(RTM_NR_MSGTYPES, sizeof(*tab), GFP_KERNEL);
		if (tab == NULL)
			return -ENOBUFS;

		rtnl_msg_handlers[protocol] = tab;
	}

	if (doit)
		tab[msgindex].doit = doit;

	if (dumpit)
		tab[msgindex].dumpit = dumpit;

	if (calcit)
		tab[msgindex].calcit = calcit;

	return 0;
}
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EXPORT_SYMBOL_GPL(__rtnl_register);

/**
 * rtnl_register - Register a rtnetlink message type
 *
 * Identical to __rtnl_register() but panics on failure. This is useful
 * as failure of this function is very unlikely, it can only happen due
 * to lack of memory when allocating the chain to store all message
 * handlers for a protocol. Meant for use in init functions where lack
 * of memory implies no sense in continuing.
 */


void rtnl_register(int protocol, int msgtype,
		   rtnl_doit_func doit, rtnl_dumpit_func dumpit,
		   rtnl_calcit_func calcit)
{
	if (__rtnl_register(protocol, msgtype, doit, dumpit, calcit) < 0)
		panic("Unable to register rtnetlink message handler, "
		      "protocol = %d, message type = %d\n",
		      protocol, msgtype);
}
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EXPORT_SYMBOL_GPL(rtnl_register);

/**
 * rtnl_unregister - Unregister a rtnetlink message type
 * @protocol: Protocol family or PF_UNSPEC
 * @msgtype: rtnetlink message type
 *
 * Returns 0 on success or a negative error code.
 */


int rtnl_unregister(int protocol, int msgtype)
{
	int msgindex;

	BUG_ON(protocol < 0 || protocol > RTNL_FAMILY_MAX);
	msgindex = rtm_msgindex(msgtype);

	if (rtnl_msg_handlers[protocol] == NULL)
		return -ENOENT;

	rtnl_msg_handlers[protocol][msgindex].doit = NULL;
	rtnl_msg_handlers[protocol][msgindex].dumpit = NULL;
	rtnl_msg_handlers[protocol][msgindex].calcit = NULL;

	return 0;
}
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EXPORT_SYMBOL_GPL(rtnl_unregister);

/**
 * rtnl_unregister_all - Unregister all rtnetlink message type of a protocol
 * @protocol : Protocol family or PF_UNSPEC
 *
 * Identical to calling rtnl_unregster() for all registered message types
 * of a certain protocol family.
 */


void rtnl_unregister_all(int protocol)
{
	BUG_ON(protocol < 0 || protocol > RTNL_FAMILY_MAX);

	kfree(rtnl_msg_handlers[protocol]);
	rtnl_msg_handlers[protocol] = NULL;
}
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EXPORT_SYMBOL_GPL(rtnl_unregister_all);

static LIST_HEAD(link_ops);



static const struct rtnl_link_ops *rtnl_link_ops_get(const char *kind)
{
	const struct rtnl_link_ops *ops;

	list_for_each_entry(ops, &link_ops, list) {
		if (!strcmp(ops->kind, kind))
			return ops;
	}
	return NULL;
}

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/**
 * __rtnl_link_register - Register rtnl_link_ops with rtnetlink.
 * @ops: struct rtnl_link_ops * to register
 *
 * The caller must hold the rtnl_mutex. This function should be used
 * by drivers that create devices during module initialization. It
 * must be called before registering the devices.
 *
 * Returns 0 on success or a negative error code.
 */


int __rtnl_link_register(struct rtnl_link_ops *ops)
{
	if (rtnl_link_ops_get(ops->kind))
		return -EEXIST;

	/* The check for setup is here because if ops
         * does not have that filled up, it is not possible
         * to use the ops for creating device. So do not
         * fill up dellink as well. That disables rtnl_dellink.
         */
	if (ops->setup && !ops->dellink)
		ops->dellink = unregister_netdevice_queue;

	list_add_tail(&ops->list, &link_ops);
	return 0;
}
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EXPORT_SYMBOL_GPL(__rtnl_link_register);

/**
 * rtnl_link_register - Register rtnl_link_ops with rtnetlink.
 * @ops: struct rtnl_link_ops * to register
 *
 * Returns 0 on success or a negative error code.
 */


int rtnl_link_register(struct rtnl_link_ops *ops)
{
	int err;

	rtnl_lock();
	err = __rtnl_link_register(ops);
	rtnl_unlock();
	return err;
}
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EXPORT_SYMBOL_GPL(rtnl_link_register);



static void __rtnl_kill_links(struct net *net, struct rtnl_link_ops *ops)
{
	struct net_device *dev;
	LIST_HEAD(list_kill);

	for_each_netdev(net, dev) {
		if (dev->rtnl_link_ops == ops)
			ops->dellink(dev, &list_kill);
	}
	unregister_netdevice_many(&list_kill);
}

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/**
 * __rtnl_link_unregister - Unregister rtnl_link_ops from rtnetlink.
 * @ops: struct rtnl_link_ops * to unregister
 *
 * The caller must hold the rtnl_mutex.
 */


void __rtnl_link_unregister(struct rtnl_link_ops *ops)
{
	struct net *net;

	for_each_net(net) {
		__rtnl_kill_links(net, ops);
	}
	list_del(&ops->list);
}
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EXPORT_SYMBOL_GPL(__rtnl_link_unregister);

/* Return with the rtnl_lock held when there are no network
 * devices unregistering in any network namespace.
 */


static void rtnl_lock_unregistering_all(void)
{
	struct net *net;
	bool unregistering;
	DEFINE_WAIT_FUNC(wait, woken_wake_function);

	add_wait_queue(&netdev_unregistering_wq, &wait);
	for (;;) {
		unregistering = false;
		rtnl_lock();
		for_each_net(net) {
			if (net->dev_unreg_count > 0) {
				unregistering = true;
				break;
			}
		}
		if (!unregistering)
			break;
		__rtnl_unlock();

		wait_woken(&wait, TASK_UNINTERRUPTIBLE, MAX_SCHEDULE_TIMEOUT);
	}
	remove_wait_queue(&netdev_unregistering_wq, &wait);
}

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/**
 * rtnl_link_unregister - Unregister rtnl_link_ops from rtnetlink.
 * @ops: struct rtnl_link_ops * to unregister
 */


void rtnl_link_unregister(struct rtnl_link_ops *ops)
{
	/* Close the race with cleanup_net() */
	mutex_lock(&net_mutex);
	rtnl_lock_unregistering_all();
	__rtnl_link_unregister(ops);
	rtnl_unlock();
	mutex_unlock(&net_mutex);
}
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EXPORT_SYMBOL_GPL(rtnl_link_unregister);



static size_t rtnl_link_get_slave_info_data_size(const struct net_device *dev)
{
	struct net_device *master_dev;
	const struct rtnl_link_ops *ops;

	master_dev = netdev_master_upper_dev_get((struct net_device *) dev);
	if (!master_dev)
		return 0;
	ops = master_dev->rtnl_link_ops;
	if (!ops || !ops->get_slave_size)
		return 0;
	/* IFLA_INFO_SLAVE_DATA + nested data */
	return nla_total_size(sizeof(struct nlattr)) +
	       ops->get_slave_size(master_dev, dev);
}

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static size_t rtnl_link_get_size(const struct net_device *dev)
{
	const struct rtnl_link_ops *ops = dev->rtnl_link_ops;
	size_t size;

	if (!ops)
		return 0;

	size = nla_total_size(sizeof(struct nlattr)) + /* IFLA_LINKINFO */
	       nla_total_size(strlen(ops->kind) + 1);  /* IFLA_INFO_KIND */

	if (ops->get_size)
		/* IFLA_INFO_DATA + nested data */
		size += nla_total_size(sizeof(struct nlattr)) +
			ops->get_size(dev);

	if (ops->get_xstats_size)
		/* IFLA_INFO_XSTATS */
		size += nla_total_size(ops->get_xstats_size(dev));

	size += rtnl_link_get_slave_info_data_size(dev);

	return size;
}

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static LIST_HEAD(rtnl_af_ops);



static const struct rtnl_af_ops *rtnl_af_lookup(const int family)
{
	const struct rtnl_af_ops *ops;

	list_for_each_entry(ops, &rtnl_af_ops, list) {
		if (ops->family == family)
			return ops;
	}

	return NULL;
}

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/**
 * rtnl_af_register - Register rtnl_af_ops with rtnetlink.
 * @ops: struct rtnl_af_ops * to register
 *
 * Returns 0 on success or a negative error code.
 */


void rtnl_af_register(struct rtnl_af_ops *ops)
{
	rtnl_lock();
	list_add_tail(&ops->list, &rtnl_af_ops);
	rtnl_unlock();
}
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EXPORT_SYMBOL_GPL(rtnl_af_register);

/**
 * __rtnl_af_unregister - Unregister rtnl_af_ops from rtnetlink.
 * @ops: struct rtnl_af_ops * to unregister
 *
 * The caller must hold the rtnl_mutex.
 */


void __rtnl_af_unregister(struct rtnl_af_ops *ops)
{
	list_del(&ops->list);
}
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EXPORT_SYMBOL_GPL(__rtnl_af_unregister);

/**
 * rtnl_af_unregister - Unregister rtnl_af_ops from rtnetlink.
 * @ops: struct rtnl_af_ops * to unregister
 */


void rtnl_af_unregister(struct rtnl_af_ops *ops)
{
	rtnl_lock();
	__rtnl_af_unregister(ops);
	rtnl_unlock();
}
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EXPORT_SYMBOL_GPL(rtnl_af_unregister);



static size_t rtnl_link_get_af_size(const struct net_device *dev,
				    u32 ext_filter_mask)
{
	struct rtnl_af_ops *af_ops;
	size_t size;

	/* IFLA_AF_SPEC */
	size = nla_total_size(sizeof(struct nlattr));

	list_for_each_entry(af_ops, &rtnl_af_ops, list) {
		if (af_ops->get_link_af_size) {
			/* AF_* + nested data */
			size += nla_total_size(sizeof(struct nlattr)) +
				af_ops->get_link_af_size(dev, ext_filter_mask);
		}
	}

	return size;
}

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1
50.00%
Total
77
100.00%
2
100.00%



static bool rtnl_have_link_slave_info(const struct net_device *dev)
{
	struct net_device *master_dev;

	master_dev = netdev_master_upper_dev_get((struct net_device *) dev);
	if (master_dev && master_dev->rtnl_link_ops)
		return true;
	return false;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Jiri Pirko
43
100.00%
1
100.00%
Total
43
100.00%
1
100.00%



static int rtnl_link_slave_info_fill(struct sk_buff *skb,
				     const struct net_device *dev)
{
	struct net_device *master_dev;
	const struct rtnl_link_ops *ops;
	struct nlattr *slave_data;
	int err;

	master_dev = netdev_master_upper_dev_get((struct net_device *) dev);
	if (!master_dev)
		return 0;
	ops = master_dev->rtnl_link_ops;
	if (!ops)
		return 0;
	if (nla_put_string(skb, IFLA_INFO_SLAVE_KIND, ops->kind) < 0)
		return -EMSGSIZE;
	if (ops->fill_slave_info) {
		slave_data = nla_nest_start(skb, IFLA_INFO_SLAVE_DATA);
		if (!slave_data)
			return -EMSGSIZE;
		err = ops->fill_slave_info(skb, master_dev, dev);
		if (err < 0)
			goto err_cancel_slave_data;
		nla_nest_end(skb, slave_data);
	}
	return 0;

err_cancel_slave_data:
	nla_nest_cancel(skb, slave_data);
	return err;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Jiri Pirko
118
74.21%
1
25.00%
Patrick McHardy
39
24.53%
1
25.00%
Linus Torvalds (pre-git)
1
0.63%
1
25.00%
Thomas Graf
1
0.63%
1
25.00%
Total
159
100.00%
4
100.00%



static int rtnl_link_info_fill(struct sk_buff *skb,
			       const struct net_device *dev)
{
	const struct rtnl_link_ops *ops = dev->rtnl_link_ops;
	struct nlattr *data;
	int err;

	if (!ops)
		return 0;
	if (nla_put_string(skb, IFLA_INFO_KIND, ops->kind) < 0)
		return -EMSGSIZE;
	if (ops->fill_xstats) {
		err = ops->fill_xstats(skb, dev);
		if (err < 0)
			return err;
	}
	if (ops->fill_info) {
		data = nla_nest_start(skb, IFLA_INFO_DATA);
		if (data == NULL)
			return -EMSGSIZE;
		err = ops->fill_info(skb, dev);
		if (err < 0)
			goto err_cancel_data;
		nla_nest_end(skb, data);
	}
	return 0;

err_cancel_data:
	nla_nest_cancel(skb, data);
	return err;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Jiri Pirko
129
81.13%
1
33.33%
Patrick McHardy
29
18.24%
1
33.33%
Linus Torvalds (pre-git)
1
0.63%
1
33.33%
Total
159
100.00%
3
100.00%



static int rtnl_link_fill(struct sk_buff *skb, const struct net_device *dev)
{
	struct nlattr *linkinfo;
	int err = -EMSGSIZE;

	linkinfo = nla_nest_start(skb, IFLA_LINKINFO);
	if (linkinfo == NULL)
		goto out;

	err = rtnl_link_info_fill(skb, dev);
	if (err < 0)
		goto err_cancel_link;

	err = rtnl_link_slave_info_fill(skb, dev);
	if (err < 0)
		goto err_cancel_link;

	nla_nest_end(skb, linkinfo);
	return 0;

err_cancel_link:
	nla_nest_cancel(skb, linkinfo);
out:
	return err;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Patrick McHardy
57
53.77%
1
25.00%
Jiri Pirko
46
43.40%
1
25.00%
Linus Torvalds (pre-git)
2
1.89%
1
25.00%
Wei Yongjun
1
0.94%
1
25.00%
Total
106
100.00%
4
100.00%



int rtnetlink_send(struct sk_buff *skb, struct net *net, u32 pid, unsigned int group, int echo)
{
	struct sock *rtnl = net->rtnl;
	int err = 0;

	NETLINK_CB(skb).dst_group = group;
	if (echo)
		atomic_inc(&skb->users);
	netlink_broadcast(rtnl, skb, pid, group, GFP_KERNEL);
	if (echo)
		err = netlink_unicast(rtnl, skb, pid, MSG_DONTWAIT);
	return err;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
77
82.80%
1
25.00%
Denis V. Lunev
14
15.05%
1
25.00%
Patrick McHardy
1
1.08%
1
25.00%
Eric Dumazet
1
1.08%
1
25.00%
Total
93
100.00%
4
100.00%



int rtnl_unicast(struct sk_buff *skb, struct net *net, u32 pid)
{
	struct sock *rtnl = net->rtnl;

	return nlmsg_unicast(rtnl, skb, pid);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Thomas Graf
23
62.16%
1
50.00%
Denis V. Lunev
14
37.84%
1
50.00%
Total
37
100.00%
2
100.00%


EXPORT_SYMBOL(rtnl_unicast);



void rtnl_notify(struct sk_buff *skb, struct net *net, u32 pid, u32 group,
		 struct nlmsghdr *nlh, gfp_t flags)
{
	struct sock *rtnl = net->rtnl;
	int report = 0;

	if (nlh)
		report = nlmsg_report(nlh);

	nlmsg_notify(rtnl, skb, pid, group, report, flags);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Thomas Graf
53
76.81%
1
33.33%
Denis V. Lunev
14
20.29%
1
33.33%
Pablo Neira Ayuso
2
2.90%
1
33.33%
Total
69
100.00%
3
100.00%


EXPORT_SYMBOL(rtnl_notify);



void rtnl_set_sk_err(struct net *net, u32 group, int error)
{
	struct sock *rtnl = net->rtnl;

	netlink_set_err(rtnl, 0, group, error);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Thomas Graf
22
61.11%
1
50.00%
Denis V. Lunev
14
38.89%
1
50.00%
Total
36
100.00%
2
100.00%


EXPORT_SYMBOL(rtnl_set_sk_err);



int rtnetlink_put_metrics(struct sk_buff *skb, u32 *metrics)
{
	struct nlattr *mx;
	int i, valid = 0;

	mx = nla_nest_start(skb, RTA_METRICS);
	if (mx == NULL)
		return -ENOBUFS;

	for (i = 0; i < RTAX_MAX; i++) {
		if (metrics[i]) {
			if (i == RTAX_CC_ALGO - 1) {
				char tmp[TCP_CA_NAME_MAX], *name;

				name = tcp_ca_get_name_by_key(metrics[i], tmp);
				if (!name)
					continue;
				if (nla_put_string(skb, i + 1, name))
					goto nla_put_failure;
			} else if (i == RTAX_FEATURES - 1) {
				u32 user_features = metrics[i] & RTAX_FEATURE_MASK;

				if (!user_features)
					continue;
				BUILD_BUG_ON(RTAX_FEATURE_MASK & DST_FEATURE_MASK);
				if (nla_put_u32(skb, i + 1, user_features))
					goto nla_put_failure;
			} else {
				if (nla_put_u32(skb, i + 1, metrics[i]))
					goto nla_put_failure;
			}
			valid++;
		}
	}

	if (!valid) {
		nla_nest_cancel(skb, mx);
		return 0;
	}

	return nla_nest_end(skb, mx);

nla_put_failure:
	nla_nest_cancel(skb, mx);
	return -EMSGSIZE;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Daniel Borkmann
102
43.40%
2
22.22%
Linus Torvalds (pre-git)
74
31.49%
1
11.11%
Thomas Graf
33
14.04%
2
22.22%
David S. Miller
19
8.09%
2
22.22%
Phil Sutter
6
2.55%
1
11.11%
Alexey Kuznetsov
1
0.43%
1
11.11%
Total
235
100.00%
9
100.00%


EXPORT_SYMBOL(rtnetlink_put_metrics);



int rtnl_put_cacheinfo(struct sk_buff *skb, struct dst_entry *dst, u32 id,
		       long expires, u32 error)
{
	struct rta_cacheinfo ci = {
		.rta_lastuse = jiffies_delta_to_clock_t(jiffies - dst->lastuse),
		.rta_used = dst->__use,
		.rta_clntref = atomic_read(&(dst->__refcnt)),
		.rta_error = error,
		.rta_id =  id,
        };

	if (expires) {
		unsigned long clock;

		clock = jiffies_to_clock_t(abs(expires));
		clock = min_t(unsigned long, clock, INT_MAX);
		ci.rta_expires = (expires > 0) ? clock : -clock;
	}
	return nla_put(skb, RTA_CACHEINFO, sizeof(ci), &ci);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Thomas Graf
97
72.39%
1
33.33%
Li Wei
36
26.87%
1
33.33%
Eric Dumazet
1
0.75%
1
33.33%
Total
134
100.00%
3
100.00%


EXPORT_SYMBOL_GPL(rtnl_put_cacheinfo);



static void set_operstate(struct net_device *dev, unsigned char transition)
{
	unsigned char operstate = dev->operstate;

	switch (transition) {
	case IF_OPER_UP:
		if ((operstate == IF_OPER_DORMANT ||
		     operstate == IF_OPER_UNKNOWN) &&
		    !netif_dormant(dev))
			operstate = IF_OPER_UP;
		break;

	case IF_OPER_DORMANT:
		if (operstate == IF_OPER_UP ||
		    operstate == IF_OPER_UNKNOWN)
			operstate = IF_OPER_DORMANT;
		break;
	}

	if (dev->operstate != operstate) {
		write_lock_bh(&dev_base_lock);
		dev->operstate = operstate;
		write_unlock_bh(&dev_base_lock);
		netdev_state_change(dev);
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Stefan Rompf
105
99.06%
1
50.00%
David S. Miller
1
0.94%
1
50.00%
Total
106
100.00%
2
100.00%



static unsigned int rtnl_dev_get_flags(const struct net_device *dev)
{
	return (dev->flags & ~(IFF_PROMISC | IFF_ALLMULTI)) |
	       (dev->gflags & (IFF_PROMISC | IFF_ALLMULTI));
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Jiri Benc
39
100.00%
1
100.00%
Total
39
100.00%
1
100.00%



static unsigned int rtnl_dev_combine_flags(const struct net_device *dev,
					   const struct ifinfomsg *ifm)
{
	unsigned int flags = ifm->ifi_flags;

	/* bugwards compatibility: ifi_change == 0 is treated as ~0 */
	if (ifm->ifi_change)
		flags = (flags & ifm->ifi_change) |
			(rtnl_dev_get_flags(dev) & ~ifm->ifi_change);

	return flags;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Patrick McHardy
56
94.92%
1
50.00%
Jiri Benc
3
5.08%
1
50.00%
Total
59
100.00%
2
100.00%



static void copy_rtnl_link_stats(struct rtnl_link_stats *a,
				 const struct rtnl_link_stats64 *b)
{
	a->rx_packets = b->rx_packets;
	a->tx_packets = b->tx_packets;
	a->rx_bytes = b->rx_bytes;
	a->tx_bytes = b->tx_bytes;
	a->rx_errors = b->rx_errors;
	a->tx_errors = b->tx_errors;
	a->rx_dropped = b->rx_dropped;
	a->tx_dropped = b->tx_dropped;

	a->multicast = b->multicast;
	a->collisions = b->collisions;

	a->rx_length_errors = b->rx_length_errors;
	a->rx_over_errors = b->rx_over_errors;
	a->rx_crc_errors = b->rx_crc_errors;
	a->rx_frame_errors = b->rx_frame_errors;
	a->rx_fifo_errors = b->rx_fifo_errors;
	a->rx_missed_errors = b->rx_missed_errors;

	a->tx_aborted_errors = b->tx_aborted_errors;
	a->tx_carrier_errors = b->tx_carrier_errors;
	a->tx_fifo_errors = b->tx_fifo_errors;
	a->tx_heartbeat_errors = b->tx_heartbeat_errors;
	a->tx_window_errors = b->tx_window_errors;

	a->rx_compressed = b->rx_compressed;
	a->tx_compressed = b->tx_compressed;

	a->rx_nohandler = b->rx_nohandler;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Thomas Graf
199
95.22%
1
25.00%
Jarod Wilson
8
3.83%
1
25.00%
Ben Hutchings
1
0.48%
1
25.00%
Stephen Hemminger
1
0.48%
1
25.00%
Total
209
100.00%
4
100.00%

/* All VF info */


static inline int rtnl_vfinfo_size(const struct net_device *dev,
				   u32 ext_filter_mask)
{
	if (dev->dev.parent && (ext_filter_mask & RTEXT_FILTER_VF)) {
		int num_vfs = dev_num_vf(dev->dev.parent);
		size_t size = nla_total_size(0);
		size += num_vfs *
			(nla_total_size(0) +
			 nla_total_size(sizeof(struct ifla_vf_mac)) +
			 nla_total_size(sizeof(struct ifla_vf_vlan)) +
			 nla_total_size(0) + /* nest IFLA_VF_VLAN_LIST */
			 nla_total_size(MAX_VLAN_LIST_LEN *
					sizeof(struct ifla_vf_vlan_info)) +
			 nla_total_size(sizeof(struct ifla_vf_spoofchk)) +
			 nla_total_size(sizeof(struct ifla_vf_tx_rate)) +
			 nla_total_size(sizeof(struct ifla_vf_rate)) +
			 nla_total_size(sizeof(struct ifla_vf_link_state)) +
			 nla_total_size(sizeof(struct ifla_vf_rss_query_en)) +
			 nla_total_size(0) + /* nest IFLA_VF_STATS */
			 /* IFLA_VF_STATS_RX_PACKETS */
			 nla_total_size_64bit(sizeof(__u64)) +
			 /* IFLA_VF_STATS_TX_PACKETS */
			 nla_total_size_64bit(sizeof(__u64)) +
			 /* IFLA_VF_STATS_RX_BYTES */
			 nla_total_size_64bit(sizeof(__u64)) +
			 /* IFLA_VF_STATS_TX_BYTES */
			 nla_total_size_64bit(sizeof(__u64)) +
			 /* IFLA_VF_STATS_BROADCAST */
			 nla_total_size_64bit(sizeof(__u64)) +
			 /* IFLA_VF_STATS_MULTICAST */
			 nla_total_size_64bit(sizeof(__u64)) +
			 nla_total_size(sizeof(struct ifla_vf_trust)));
		return size;
	} else
		return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Eran Ben Elisha
48
21.92%
1
7.69%
Mitch A Williams
38
17.35%
1
7.69%
Chris Wright
34
15.53%
1
7.69%
Sabrina Dubroca
27
12.33%
1
7.69%
Greg Rose
16
7.31%
2
15.38%
Moshe Shemesh
11
5.02%
1
7.69%
Scott Feldman
10
4.57%
1
7.69%
Vladislav Zolotarov
9
4.11%
1
7.69%
Hiroshi Shimamoto
9
4.11%
1
7.69%
Jiri Benc
9
4.11%
1
7.69%
Nicolas Dichtel
6
2.74%
1
7.69%
Sucheta Chakraborty
2
0.91%
1
7.69%
Total
219
100.00%
13
100.00%



static size_t rtnl_port_size(const struct net_device *dev,
			     u32 ext_filter_mask)
{
	size_t port_size = nla_total_size(4)		/* PORT_VF */
		+ nla_total_size(PORT_PROFILE_MAX)	/* PORT_PROFILE */
		+ nla_total_size(PORT_UUID_MAX)		/* PORT_INSTANCE_UUID */
		+ nla_total_size(PORT_UUID_MAX)		/* PORT_HOST_UUID */
		+ nla_total_size(1)			/* PROT_VDP_REQUEST */
		+ nla_total_size(2);			/* PORT_VDP_RESPONSE */
	size_t vf_ports_size = nla_total_size(sizeof(struct nlattr));
	size_t vf_port_size = nla_total_size(sizeof(struct nlattr))
		+ port_size;
	size_t port_self_size = nla_total_size(sizeof(struct nlattr))
		+ port_size;

	if (!dev->netdev_ops->ndo_get_vf_port || !dev->dev.parent ||
	    !(ext_filter_mask & RTEXT_FILTER_VF))
		return 0;
	if (dev_num_vf(dev->dev.parent))
		return port_self_size + vf_ports_size +
			vf_port_size * dev_num_vf(dev->dev.parent);
	else
		return port_self_size;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Scott Feldman
141
93.38%
1
50.00%
David Gibson
10
6.62%
1
50.00%
Total
151
100.00%
2
100.00%



static size_t rtnl_xdp_size(const struct net_device *dev)
{
	size_t xdp_size = nla_total_size(0) +	/* nest IFLA_XDP */
			  nla_total_size(1);	/* XDP_ATTACHED */

	if (!dev->netdev_ops->ndo_xdp)
		return 0;
	else
		return xdp_size;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Brenden Blanco
37
86.05%
1
50.00%
Sabrina Dubroca
6
13.95%
1
50.00%
Total
43
100.00%
2
100.00%



static noinline size_t if_nlmsg_size(const struct net_device *dev,
				     u32 ext_filter_mask)
{
	return NLMSG_ALIGN(sizeof(struct ifinfomsg))
	       + nla_total_size(IFNAMSIZ) /* IFLA_IFNAME */
	       + nla_total_size(IFALIASZ) /* IFLA_IFALIAS */
	       + nla_total_size(IFNAMSIZ) /* IFLA_QDISC */
	       + nla_total_size_64bit(sizeof(struct rtnl_link_ifmap))
	       + nla_total_size(sizeof(struct rtnl_link_stats))
	       + nla_total_size_64bit(sizeof(struct rtnl_link_stats64))
	       + nla_total_size(MAX_ADDR_LEN) /* IFLA_ADDRESS */
	       + nla_total_size(MAX_ADDR_LEN) /* IFLA_BROADCAST */
	       + nla_total_size(4) /* IFLA_TXQLEN */
	       + nla_total_size(4) /* IFLA_WEIGHT */
	       + nla_total_size(4) /* IFLA_MTU */
	       + nla_total_size(4) /* IFLA_LINK */
	       + nla_total_size(4) /* IFLA_MASTER */
	       + nla_total_size(1) /* IFLA_CARRIER */
	       + nla_total_size(4) /* IFLA_PROMISCUITY */
	       + nla_total_size(4) /* IFLA_NUM_TX_QUEUES */
	       + nla_total_size(4) /* IFLA_NUM_RX_QUEUES */
	       + nla_total_size(4) /* IFLA_GSO_MAX_SEGS */
	       + nla_total_size(4) /* IFLA_GSO_MAX_SIZE */
	       + nla_total_size(1) /* IFLA_OPERSTATE */
	       + nla_total_size(1) /* IFLA_LINKMODE */
	       + nla_total_size(4) /* IFLA_CARRIER_CHANGES */
	       + nla_total_size(4) /* IFLA_LINK_NETNSID */
	       + nla_total_size(ext_filter_mask
			        & RTEXT_FILTER_VF ? 4 : 0) /* IFLA_NUM_VF */
	       + rtnl_vfinfo_size(dev, ext_filter_mask) /* IFLA_VFINFO_LIST */
	       + rtnl_port_size(dev, ext_filter_mask) /* IFLA_VF_PORTS + IFLA_PORT_SELF */
	       + rtnl_link_get_size(dev) /* IFLA_LINKINFO */
	       + rtnl_link_get_af_size(dev, ext_filter_mask) /* IFLA_AF_SPEC */
	       + nla_total_size(MAX_PHYS_ITEM_ID_LEN) /* IFLA_PHYS_PORT_ID */
	       + nla_total_size(MAX_PHYS_ITEM_ID_LEN) /* IFLA_PHYS_SWITCH_ID */
	       + nla_total_size(IFNAMSIZ) /* IFLA_PHYS_PORT_NAME */
	       + rtnl_xdp_size(dev) /* IFLA_XDP */
	       + nla_total_size(1); /* IFLA_PROTO_DOWN */

}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Thomas Graf
93
37.96%
2
7.69%
Scott Feldman
34
13.88%
1
3.85%
Jiri Pirko
30
12.24%
5
19.23%
Nicolas Dichtel
13
5.31%
3
11.54%
Eric Dumazet
11
4.49%
2
7.69%
Greg Rose
11
4.49%
1
3.85%
Jan Engelhardt
9
3.67%
1
3.85%
Anuradha Karuppiah
7
2.86%
1
3.85%
David Decotigny
6
2.45%
1
3.85%
Brenden Blanco
6
2.45%
1
3.85%
Stephen Hemminger
6
2.45%
1
3.85%
Ben Greear
6
2.45%
1
3.85%
Patrick McHardy
5
2.04%
1
3.85%
David S. Miller
2
0.82%
2
7.69%
David Gibson
2
0.82%
1
3.85%
Tobias Klauser
2
0.82%
1
3.85%
Arad, Ronen
2
0.82%
1
3.85%
Total
245
100.00%
26
100.00%



static int rtnl_vf_ports_fill(struct sk_buff *skb, struct net_device *dev)
{
	struct nlattr *vf_ports;
	struct nlattr *vf_port;
	int vf;
	int err;

	vf_ports = nla_nest_start(skb, IFLA_VF_PORTS);
	if (!vf_ports)
		return -EMSGSIZE;

	for (vf = 0; vf < dev_num_vf(dev->dev.parent); vf++) {
		vf_port = nla_nest_start(skb, IFLA_VF_PORT);
		if (!vf_port)
			goto nla_put_failure;
		if (nla_put_u32(skb, IFLA_PORT_VF, vf))
			goto nla_put_failure;
		err = dev->netdev_ops->ndo_get_vf_port(dev, vf, skb);
		if (err == -EMSGSIZE)
			goto nla_put_failure;
		if (err) {
			nla_nest_cancel(skb, vf_port);
			continue;
		}
		nla_nest_end(skb, vf_port);
	}

	nla_nest_end(skb, vf_ports);

	return 0;

nla_put_failure:
	nla_nest_cancel(skb, vf_ports);
	return -EMSGSIZE;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Scott Feldman
165
95.93%
2
66.67%
David S. Miller
7
4.07%
1
33.33%
Total
172
100.00%
3
100.00%



static int rtnl_port_self_fill(struct sk_buff *skb, struct net_device *dev)
{
	struct nlattr *port_self;
	int err;

	port_self = nla_nest_start(skb, IFLA_PORT_SELF);
	if (!port_self)
		return -EMSGSIZE;

	err = dev->netdev_ops->ndo_get_vf_port(dev, PORT_SELF_VF, skb);
	if (err) {
		nla_nest_cancel(skb, port_self);
		return (err == -EMSGSIZE) ? err : 0;
	}

	nla_nest_end(skb, port_self);

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Scott Feldman
89
96.74%
2
66.67%
Thomas Graf
3
3.26%
1
33.33%
Total
92
100.00%
3
100.00%



static int rtnl_port_fill(struct sk_buff *skb, struct net_device *dev,
			  u32 ext_filter_mask)
{
	int err;

	if (!dev->netdev_ops->ndo_get_vf_port || !dev->dev.parent ||
	    !(ext_filter_mask & RTEXT_FILTER_VF))
		return 0;

	err = rtnl_port_self_fill(skb, dev);
	if (err)
		return err;

	if (dev_num_vf(dev->dev.parent)) {
		err = rtnl_vf_ports_fill(skb, dev);
		if (err)
			return err;
	}

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Scott Feldman
76
79.17%
1
20.00%
David Gibson
10
10.42%
1
20.00%
Mitch A Williams
5
5.21%
1
20.00%
Patrick McHardy
4
4.17%
1
20.00%
Thomas Graf
1
1.04%
1
20.00%
Total
96
100.00%
5
100.00%



static int rtnl_phys_port_id_fill(struct sk_buff *skb, struct net_device *dev)
{
	int err;
	struct netdev_phys_item_id ppid;

	err = dev_get_phys_port_id(dev, &ppid);
	if (err) {
		if (err == -EOPNOTSUPP)
			return 0;
		return err;
	}

	if (nla_put(skb, IFLA_PHYS_PORT_ID, ppid.id_len, ppid.id))
		return -EMSGSIZE;

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Jiri Pirko
76
100.00%
2
100.00%
Total
76
100.00%
2
100.00%



static int rtnl_phys_port_name_fill(struct sk_buff *skb, struct net_device *dev)
{
	char name[IFNAMSIZ];
	int err;

	err = dev_get_phys_port_name(dev, name, sizeof(name));
	if (err) {
		if (err == -EOPNOTSUPP)
			return 0;
		return err;
	}

	if (nla_put(skb, IFLA_PHYS_PORT_NAME, strlen(name), name))
		return -EMSGSIZE;

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
David Ahern
81
100.00%
1
100.00%
Total
81
100.00%
1
100.00%



static int rtnl_phys_switch_id_fill(struct sk_buff *skb, struct net_device *dev)
{
	int err;
	struct switchdev_attr attr = {
		.orig_dev = dev,
		.id = SWITCHDEV_ATTR_ID_PORT_PARENT_ID,
		.flags = SWITCHDEV_F_NO_RECURSE,
        };

	err = switchdev_port_attr_get(dev, &attr);
	if (err) {
		if (err == -EOPNOTSUPP)
			return 0;
		return err;
	}

	if (nla_put(skb, IFLA_PHYS_SWITCH_ID, attr.u.ppid.id_len,
		    attr.u.ppid.id))
		return -EMSGSIZE;

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Jiri Pirko
71
70.30%
2
40.00%
Scott Feldman
25
24.75%
2
40.00%
Ido Schimmel
5
4.95%
1
20.00%
Total
101
100.00%
5
100.00%



static noinline_for_stack int rtnl_fill_stats(struct sk_buff *skb,
					      struct net_device *dev)
{
	struct rtnl_link_stats64 *sp;
	struct nlattr *attr;

	attr = nla_reserve_64bit(skb, IFLA_STATS64,
				 sizeof(struct rtnl_link_stats64), IFLA_PAD);
	if (!attr)
		return -EMSGSIZE;

	sp = nla_data(attr);
	dev_get_stats(dev, sp);

	attr = nla_reserve(skb, IFLA_STATS,
			   sizeof(struct rtnl_link_stats));
	if (!attr)
		return -EMSGSIZE;

	copy_rtnl_link_stats(nla_data(attr), sp);

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Hannes Frederic Sowa
32
30.77%
1
8.33%
Patrick McHardy
28
26.92%
1
8.33%
Linus Torvalds (pre-git)
17
16.35%
3
25.00%
Roopa Prabhu
14
13.46%
1
8.33%
Pavel Emelyanov
4
3.85%
1
8.33%
Nicolas Dichtel
3
2.88%
1
8.33%
Ben Greear
2
1.92%
1
8.33%
Vlad Dogaru
2
1.92%
1
8.33%
Thomas Graf
1
0.96%
1
8.33%
Eric Dumazet
1
0.96%
1
8.33%
Total
104
100.00%
12
100.00%



static noinline_for_stack int rtnl_fill_vfinfo(struct sk_buff *skb,
					       struct net_device *dev,
					       int vfs_num,
					       struct nlattr *vfinfo)
{
	struct ifla_vf_rss_query_en vf_rss_query_en;
	struct nlattr *vf, *vfstats, *vfvlanlist;
	struct ifla_vf_link_state vf_linkstate;
	struct ifla_vf_vlan_info vf_vlan_info;
	struct ifla_vf_spoofchk vf_spoofchk;
	struct ifla_vf_tx_rate vf_tx_rate;
	struct ifla_vf_stats vf_stats;
	struct ifla_vf_trust vf_trust;
	struct ifla_vf_vlan vf_vlan;
	struct ifla_vf_rate vf_rate;
	struct ifla_vf_mac vf_mac;
	struct ifla_vf_info ivi;

	/* Not all SR-IOV capable drivers support the
         * spoofcheck and "RSS query enable" query.  Preset to
         * -1 so the user space tool can detect that the driver
         * didn't report anything.
         */
	ivi.spoofchk = -1;
	ivi.rss_query_en = -1;
	ivi.trusted = -1;
	memset(ivi.mac, 0, sizeof(ivi.mac));
	/* The default value for VF link state is "auto"
         * IFLA_VF_LINK_STATE_AUTO which equals zero
         */
	ivi.linkstate = 0;
	/* VLAN Protocol by default is 802.1Q */
	ivi.vlan_proto = htons(ETH_P_8021Q);
	if (dev->netdev_ops->ndo_get_vf_config(dev, vfs_num, &ivi))
		return 0;

	memset(&vf_vlan_info, 0, sizeof(vf_vlan_info));

	vf_mac.vf =
		vf_vlan.vf =
		vf_vlan_info.vf =
		vf_rate.vf =
		vf_tx_rate.vf =
		vf_spoofchk.vf =
		vf_linkstate.vf =
		vf_rss_query_en.vf =
		vf_trust.vf = ivi.vf;

	memcpy(vf_mac.mac, ivi.mac, sizeof(ivi.mac));
	vf_vlan.vlan = ivi.vlan;
	vf_vlan.qos = ivi.qos;
	vf_vlan_info.vlan = ivi.vlan;
	vf_vlan_info.qos = ivi.qos;
	vf_vlan_info.vlan_proto = ivi.vlan_proto;
	vf_tx_rate.rate = ivi.max_tx_rate;
	vf_rate.min_tx_rate = ivi.min_tx_rate;
	vf_rate.max_tx_rate = ivi.max_tx_rate;
	vf_spoofchk.setting = ivi.spoofchk;
	vf_linkstate.link_state = ivi.linkstate;
	vf_rss_query_en.setting = ivi.rss_query_en;
	vf_trust.setting = ivi.trusted;
	vf = nla_nest_start(skb, IFLA_VF_INFO);
	if (!vf)
		goto nla_put_vfinfo_failure;
	if (nla_put(skb, IFLA_VF_MAC, sizeof(vf_mac), &vf_mac) ||
	    nla_put(skb, IFLA_VF_VLAN, sizeof(vf_vlan), &vf_vlan) ||
	    nla_put(skb, IFLA_VF_RATE, sizeof(vf_rate),
		    &vf_rate) ||
	    nla_put(skb, IFLA_VF_TX_RATE, sizeof(vf_tx_rate),
		    &vf_tx_rate) ||
	    nla_put(skb, IFLA_VF_SPOOFCHK, sizeof(vf_spoofchk),
		    &vf_spoofchk) ||
	    nla_put(skb, IFLA_VF_LINK_STATE, sizeof(vf_linkstate),
		    &vf_linkstate) ||
	    nla_put(skb, IFLA_VF_RSS_QUERY_EN,
		    sizeof(vf_rss_query_en),
		    &vf_rss_query_en) ||
	    nla_put(skb, IFLA_VF_TRUST,
		    sizeof(vf_trust), &vf_trust))
		goto nla_put_vf_failure;
	vfvlanlist = nla_nest_start(skb, IFLA_VF_VLAN_LIST);
	if (!vfvlanlist)
		goto nla_put_vf_failure;
	if (nla_put(skb, IFLA_VF_VLAN_INFO, sizeof(vf_vlan_info),
		    &vf_vlan_info)) {
		nla_nest_cancel(skb, vfvlanlist);
		goto nla_put_vf_failure;
	}
	nla_nest_end(skb, vfvlanlist);
	memset(&vf_stats, 0, sizeof(vf_stats));
	if (dev->netdev_ops->ndo_get_vf_stats)
		dev->netdev_ops->ndo_get_vf_stats(dev, vfs_num,
						&vf_stats);
	vfstats = nla_nest_start(skb, IFLA_VF_STATS);
	if (!vfstats)
		goto nla_put_vf_failure;
	if (nla_put_u64_64bit(skb, IFLA_VF_STATS_RX_PACKETS,
			      vf_stats.rx_packets, IFLA_VF_STATS_PAD) ||
	    nla_put_u64_64bit(skb, IFLA_VF_STATS_TX_PACKETS,
			      vf_stats.tx_packets, IFLA_VF_STATS_PAD) ||
	    nla_put_u64_64bit(skb, IFLA_VF_STATS_RX_BYTES,
			      vf_stats.rx_bytes, IFLA_VF_STATS_PAD) ||
	    nla_put_u64_64bit(skb, IFLA_VF_STATS_TX_BYTES,
			      vf_stats.tx_bytes, IFLA_VF_STATS_PAD) ||
	    nla_put_u64_64bit(skb, IFLA_VF_STATS_BROADCAST,
			      vf_stats.broadcast, IFLA_VF_STATS_PAD) ||
	    nla_put_u64_64bit(skb, IFLA_VF_STATS_MULTICAST,
			      vf_stats.multicast, IFLA_VF_STATS_PAD)) {
		nla_nest_cancel(skb, vfstats);
		goto nla_put_vf_failure;
	}
	nla_nest_end(skb, vfstats);
	nla_nest_end(skb, vf);
	return 0;

nla_put_vf_failure:
	nla_nest_cancel(skb, vf);
nla_put_vfinfo_failure:
	nla_nest_cancel(skb, vfinfo);
	return -EMSGSIZE;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Hannes Frederic Sowa
405
57.94%
1
5.26%
Moshe Shemesh
149
21.32%
1
5.26%
Patrick McHardy
42
6.01%
1
5.26%
Nicolas Dichtel
22
3.15%
2
10.53%
Jiri Pirko
19
2.72%
4
21.05%
Dan Carpenter
13
1.86%
1
5.26%
Jan Engelhardt
12
1.72%
1
5.26%
David Decotigny
8
1.14%
1
5.26%
Anuradha Karuppiah
6
0.86%
1
5.26%
David S. Miller
6
0.86%
1
5.26%
David Ahern
6
0.86%
1
5.26%
Stephen Hemminger
5
0.72%
1
5.26%
Scott Feldman
3
0.43%
1
5.26%
Pavel Emelyanov
2
0.29%
1
5.26%
Eric Dumazet
1
0.14%
1
5.26%
Total
699
100.00%
19
100.00%



static int rtnl_fill_link_ifmap(struct sk_buff *skb, struct net_device *dev)
{
	struct rtnl_link_ifmap map;

	memset(&map, 0, sizeof(map));
	map.mem_start   = dev->mem_start;
	map.mem_end     = dev->mem_end;
	map.base_addr   = dev->base_addr;
	map.irq         = dev->irq;
	map.dma         = dev->dma;
	map.port        = dev->if_port;

	if (nla_put_64bit(skb, IFLA_MAP, sizeof(map), &map, IFLA_PAD))
		return -EMSGSIZE;

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Hannes Frederic Sowa
60
56.07%
1
16.67%
Kangjie Lu
26
24.30%
1
16.67%
Mitch A Williams
9
8.41%
1
16.67%
Chris Wright
5
4.67%
1
16.67%
Scott Feldman
4
3.74%
1
16.67%
Nicolas Dichtel
3
2.80%
1
16.67%
Total
107
100.00%
6
100.00%



static int rtnl_xdp_fill(struct sk_buff *skb, struct net_device *dev)
{
	struct netdev_xdp xdp_op = {};
	struct nlattr *xdp;
	int err;

	if (!dev->netdev_ops->ndo_xdp)
		return 0;
	xdp = nla_nest_start(skb, IFLA_XDP);
	if (!xdp)
		return -EMSGSIZE;
	xdp_op.command = XDP_QUERY_PROG;
	err = dev->netdev_ops->ndo_xdp(dev, &xdp_op);
	if (err)
		goto err_cancel;
	err = nla_put_u8(skb, IFLA_XDP_ATTACHED, xdp_op.prog_attached);
	if (err)
		goto err_cancel;

	nla_nest_end(skb, xdp);
	return 0;

err_cancel:
	nla_nest_cancel(skb, xdp);
	return err;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Brenden Blanco
129
100.00%
1
100.00%
Total
129
100.00%
1
100.00%



static int rtnl_fill_ifinfo(struct sk_buff *skb, struct net_device *dev,
			    int type, u32 pid, u32 seq, u32 change,
			    unsigned int flags, u32 ext_filter_mask)
{
	struct ifinfomsg *ifm;
	struct nlmsghdr *nlh;
	struct nlattr *af_spec;
	struct rtnl_af_ops *af_ops;
	struct net_device *upper_dev = netdev_master_upper_dev_get(dev);

	ASSERT_RTNL();
	nlh = nlmsg_put(skb, pid, seq, type, sizeof(*ifm), flags);
	if (nlh == NULL)
		return -EMSGSIZE;

	ifm = nlmsg_data(nlh);
	ifm->ifi_family = AF_UNSPEC;
	ifm->__ifi_pad = 0;
	ifm->ifi_type = dev->type;
	ifm->ifi_index = dev->ifindex;
	ifm->ifi_flags = dev_get_flags(dev);
	ifm->ifi_change = change;

	if (nla_put_string(skb, IFLA_IFNAME, dev->name) ||
	    nla_put_u32(skb, IFLA_TXQLEN, dev->tx_queue_len) ||
	    nla_put_u8(skb, IFLA_OPERSTATE,
		       netif_running(dev) ? dev->operstate : IF_OPER_DOWN) ||
	    nla_put_u8(skb, IFLA_LINKMODE, dev->link_mode) ||
	    nla_put_u32(skb, IFLA_MTU, dev->mtu) ||
	    nla_put_u32(skb, IFLA_GROUP, dev->group) ||
	    nla_put_u32(skb, IFLA_PROMISCUITY, dev->promiscuity) ||
	    nla_put_u32(skb, IFLA_NUM_TX_QUEUES, dev->num_tx_queues) ||
	    nla_put_u32(skb, IFLA_GSO_MAX_SEGS, dev->gso_max_segs) ||
	    nla_put_u32(skb, IFLA_GSO_MAX_SIZE, dev->gso_max_size) ||
#ifdef CONFIG_RPS
	    nla_put_u32(skb, IFLA_NUM_RX_QUEUES, dev->num_rx_queues) ||
#endif
	    (dev->ifindex != dev_get_iflink(dev) &&
	     nla_put_u32(skb, IFLA_LINK, dev_get_iflink(dev))) ||
	    (upper_dev &&
	     nla_put_u32(skb, IFLA_MASTER, upper_dev->ifindex)) ||
	    nla_put_u8(skb, IFLA_CARRIER, netif_carrier_ok(dev)) ||
	    (dev->qdisc &&
	     nla_put_string(skb, IFLA_QDISC, dev->qdisc->ops->id)) ||
	    (dev->ifalias &&
	     nla_put_string(skb, IFLA_IFALIAS, dev->ifalias)) ||
	    nla_put_u32(skb, IFLA_CARRIER_CHANGES,
			atomic_read(&dev->carrier_changes)) ||
	    nla_put_u8(skb, IFLA_PROTO_DOWN, dev->proto_down))
		goto nla_put_failure;

	if (rtnl_fill_link_ifmap(skb, dev))
		goto nla_put_failure;

	if (dev->addr_len) {
		if (nla_put(skb, IFLA_ADDRESS, dev->addr_len, dev->dev_addr) ||
		    nla_put(skb, IFLA_BROADCAST, dev->addr_len, dev->broadcast))
			goto nla_put_failure;
	}

	if (rtnl_phys_port_id_fill(skb, dev))
		goto nla_put_failure;

	if (rtnl_phys_port_name_fill(skb, dev))
		goto nla_put_failure;

	if (rtnl_phys_switch_id_fill(skb, dev))
		goto nla_put_failure;

	if (rtnl_fill_stats(skb, dev))
		goto nla_put_failure;

	if (dev->dev.parent && (ext_filter_mask & RTEXT_FILTER_VF) &&
	    nla_put_u32(skb, IFLA_NUM_VF, dev_num_vf(dev->dev.parent)))
		goto nla_put_failure;

	if (dev->netdev_ops->ndo_get_vf_config && dev->dev.parent &&
	    ext_filter_mask & RTEXT_FILTER_VF) {
		int i;
		struct nlattr *vfinfo;
		int num_vfs = dev_num_vf(dev->dev.parent);

		vfinfo = nla_nest_start(skb, IFLA_VFINFO_LIST);
		if (!vfinfo)
			goto nla_put_failure;
		for (i = 0; i < num_vfs; i++) {
			if (rtnl_fill_vfinfo(skb, dev, i, vfinfo))
				goto nla_put_failure;
		}

		nla_nest_end(skb, vfinfo);
	}

	if (rtnl_port_fill(skb, dev, ext_filter_mask))
		goto nla_put_failure;

	if (rtnl_xdp_fill(skb, dev))
		goto nla_put_failure;

	if (dev->rtnl_link_ops || rtnl_have_link_slave_info(dev)) {
		if (rtnl_link_fill(skb, dev) < 0)
			goto nla_put_failure;
	}

	if (dev->rtnl_link_ops &&
	    dev->rtnl_link_ops->get_link_net) {
		struct net *link_net = dev->rtnl_link_ops->get_link_net(dev);

		if (!net_eq(dev_net(dev), link_net)) {
			int id = peernet2id_alloc(dev_net(dev), link_net);

			if (nla_put_s32(skb, IFLA_LINK_NETNSID, id))
				goto nla_put_failure;
		}
	}

	if (!(af_spec = nla_nest_start(skb, IFLA_AF_SPEC)))
		goto nla_put_failure;

	list_for_each_entry(af_ops, &rtnl_af_ops, list) {
		if (af_ops->fill_link_af) {
			struct nlattr *af;
			int err;

			if (!(af = nla_nest_start(skb, af_ops->family)))
				goto nla_put_failure;

			err = af_ops->fill_link_af(skb, dev, ext_filter_mask);

			/*
                         * Caller may return ENODATA to indicate that there
                         * was no data to be dumped. This is not an error, it
                         * means we should trim the attribute header and
                         * continue.
                         */
			if (err == -ENODATA)
				nla_nest_cancel(skb, af);
			else if (err < 0)
				goto nla_put_failure;

			nla_nest_end(skb, af);
		}
	}

	nla_nest_end(skb, af_spec);

	nlmsg_end(skb, nlh);
	return 0;

nla_put_failure:
	nlmsg_cancel(skb, nlh);
	return -EMSGSIZE;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Hannes Frederic Sowa
423
47.42%
1
4.55%
Thomas Graf
112
12.56%
1
4.55%
Nicolas Dichtel
70
7.85%
2
9.09%
Eran Ben Elisha
62
6.95%
1
4.55%
Patrick McHardy
39
4.37%
1
4.55%
Chris Wright
38
4.26%
1
4.55%
Eric Dumazet
22
2.47%
1
4.55%
Hiroshi Shimamoto
15
1.68%
1
4.55%
Mitch A Williams
14
1.57%
1
4.55%
Vladislav Zolotarov
13
1.46%
1
4.55%
Scott Feldman
12
1.35%
1
4.55%
Brenden Blanco
12
1.35%
1
4.55%
Greg Rose
12
1.35%
1
4.55%
Rony Efraim
11
1.23%
1
4.55%
Sucheta Chakraborty
10
1.12%
1
4.55%
Mathias Krause
8
0.90%
1
4.55%
David S. Miller
7
0.78%
1
4.55%
Jiri Pirko
5
0.56%
1
4.55%
Johannes Berg
3
0.34%
1
4.55%
Sowmini Varadhan
2
0.22%
1
4.55%
David Gibson
2
0.22%
1
4.55%
Total
892
100.00%
22
100.00%


static const struct nla_policy ifla_policy[IFLA_MAX+1] = {
	[IFLA_IFNAME]		= { .type = NLA_STRING, .len = IFNAMSIZ-1 },
	[IFLA_ADDRESS]		= { .type = NLA_BINARY, .len = MAX_ADDR_LEN },
	[IFLA_BROADCAST]	= { .type = NLA_BINARY, .len = MAX_ADDR_LEN },
	[IFLA_MAP]		= { .len = sizeof(struct rtnl_link_ifmap) },
	[IFLA_MTU]		= { .type = NLA_U32 },
	[IFLA_LINK]		= { .type = NLA_U32 },
	[IFLA_MASTER]		= { .type = NLA_U32 },
	[IFLA_CARRIER]		= { .type = NLA_U8 },
	[IFLA_TXQLEN]		= { .type = NLA_U32 },
	[IFLA_WEIGHT]		= { .type = NLA_U32 },
	[IFLA_OPERSTATE]	= { .type = NLA_U8 },
	[IFLA_LINKMODE]		= { .type = NLA_U8 },
	[IFLA_LINKINFO]		= { .type = NLA_NESTED },
	[IFLA_NET_NS_PID]	= { .type = NLA_U32 },
	[IFLA_NET_NS_FD]	= { .type = NLA_U32 },
	[IFLA_IFALIAS]	        = { .type = NLA_STRING, .len = IFALIASZ-1 },
	[IFLA_VFINFO_LIST]	= {. type = NLA_NESTED },
	[IFLA_VF_PORTS]		= { .type = NLA_NESTED },
	[IFLA_PORT_SELF]	= { .type = NLA_NESTED },
	[IFLA_AF_SPEC]		= { .type = NLA_NESTED },
	[IFLA_EXT_MASK]		= { .type = NLA_U32 },
	[IFLA_PROMISCUITY]	= { .type = NLA_U32 },
	[IFLA_NUM_TX_QUEUES]	= { .type = NLA_U32 },
	[IFLA_NUM_RX_QUEUES]	= { .type = NLA_U32 },
	[IFLA_PHYS_PORT_ID]	= { .type = NLA_BINARY, .len = MAX_PHYS_ITEM_ID_LEN },
	[IFLA_CARRIER_CHANGES]	= { .type = NLA_U32 },  /* ignored */
	[IFLA_PHYS_SWITCH_ID]	= { .type = NLA_BINARY, .len = MAX_PHYS_ITEM_ID_LEN },
	[IFLA_LINK_NETNSID]	= { .type = NLA_S32 },
	[IFLA_PROTO_DOWN]	= { .type = NLA_U8 },
	[IFLA_XDP]		= { .type = NLA_NESTED },
};


static const struct nla_policy ifla_info_policy[IFLA_INFO_MAX+1] = {
	[IFLA_INFO_KIND]	= { .type = NLA_STRING },
	[IFLA_INFO_DATA]	= { .type = NLA_NESTED },
	[IFLA_INFO_SLAVE_KIND]	= { .type = NLA_STRING },
	[IFLA_INFO_SLAVE_DATA]	= { .type = NLA_NESTED },
};


static const struct nla_policy ifla_vf_policy[IFLA_VF_MAX+1] = {
	[IFLA_VF_MAC]		= { .len = sizeof(struct ifla_vf_mac) },
	[IFLA_VF_VLAN]		= { .len = sizeof(struct ifla_vf_vlan) },
	[IFLA_VF_VLAN_LIST]     = { .type = NLA_NESTED },
	[IFLA_VF_TX_RATE]	= { .len = sizeof(struct ifla_vf_tx_rate) },
	[IFLA_VF_SPOOFCHK]	= { .len = sizeof(struct ifla_vf_spoofchk) },
	[IFLA_VF_RATE]		= { .len = sizeof(struct ifla_vf_rate) },
	[IFLA_VF_LINK_STATE]	= { .len = sizeof(struct ifla_vf_link_state) },
	[IFLA_VF_RSS_QUERY_EN]	= { .len = sizeof(struct ifla_vf_rss_query_en) },
	[IFLA_VF_STATS]		= { .type = NLA_NESTED },
	[IFLA_VF_TRUST]		= { .len = sizeof(struct ifla_vf_trust) },
	[IFLA_VF_IB_NODE_GUID]	= { .len = sizeof(struct ifla_vf_guid) },
	[IFLA_VF_IB_PORT_GUID]	= { .len = sizeof(struct ifla_vf_guid) },
};


static const struct nla_policy ifla_port_policy[IFLA_PORT_MAX+1] = {
	[IFLA_PORT_VF]		= { .type = NLA_U32 },
	[IFLA_PORT_PROFILE]	= { .type = NLA_STRING,
				    .len = PORT_PROFILE_MAX },
	[IFLA_PORT_INSTANCE_UUID] = { .type = NLA_BINARY,
				      .len = PORT_UUID_MAX },
	[IFLA_PORT_HOST_UUID]	= { .type = NLA_STRING,
				    .len = PORT_UUID_MAX },
	[IFLA_PORT_REQUEST]	= { .type = NLA_U8, },
	[IFLA_PORT_RESPONSE]	= { .type = NLA_U16, },

	/* Unused, but we need to keep it here since user space could
         * fill it. It's also broken with regard to NLA_BINARY use in
         * combination with structs.
         */
	[IFLA_PORT_VSI_TYPE]	= { .type = NLA_BINARY,
				    .len = sizeof(struct ifla_port_vsi) },
};


static const struct nla_policy ifla_xdp_policy[IFLA_XDP_MAX + 1] = {
	[IFLA_XDP_FD]		= { .type = NLA_S32 },
	[IFLA_XDP_ATTACHED]	= { .type = NLA_U8 },
	[IFLA_XDP_FLAGS]	= { .type = NLA_U32 },
};



static const struct rtnl_link_ops *linkinfo_to_kind_ops(const struct nlattr *nla)
{
	const struct rtnl_link_ops *ops = NULL;
	struct nlattr *linfo[IFLA_INFO_MAX + 1];

	if (nla_parse_nested(linfo, IFLA_INFO_MAX, nla, ifla_info_policy) < 0)
		return NULL;

	if (linfo[IFLA_INFO_KIND]) {
		char kind[MODULE_NAME_LEN];

		nla_strlcpy(kind, linfo[IFLA_INFO_KIND], sizeof(kind));
		ops = rtnl_link_ops_get(kind);
	}

	return ops;
}

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91
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1
100.00%



static bool link_master_filtered(struct net_device *dev, int master_idx)
{
	struct net_device *master;

	if (!master_idx)
		return false;

	master = netdev_master_upper_dev_get(dev);
	if (!master || master->ifindex != master_idx)
		return true;

	return false;
}

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51
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1
100.00%



static bool link_kind_filtered(const struct net_device *dev,
			       const struct rtnl_link_ops *kind_ops)
{
	if (kind_ops && dev->rtnl_link_ops != kind_ops)
		return true;

	return false;
}

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34
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1
100.00%



static bool link_dump_filtered(struct net_device *dev,
			       int master_idx,
			       const struct rtnl_link_ops *kind_ops)
{
	if (link_master_filtered(dev, master_idx) ||
	    link_kind_filtered(dev, kind_ops))
		return true;

	return false;
}

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42
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42
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1
100.00%



static int rtnl_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb)
{
	struct net *net = sock_net(skb->sk);
	int h, s_h;
	int idx = 0, s_idx;
	struct net_device *dev;
	struct hlist_head *head;
	struct nlattr *tb[IFLA_MAX+1];
	u32 ext_filter_mask = 0;
	const struct rtnl_link_ops *kind_ops = NULL;
	unsigned int flags = NLM_F_MULTI;
	int master_idx = 0;
	int err;
	int hdrlen;

	s_h = cb->args[0];
	s_idx = cb->args[1];

	cb->seq = net->dev_base_seq;

	/* A hack to preserve kernel<->userspace interface.
         * The correct header is ifinfomsg. It is consistent with rtnl_getlink.
         * However, before Linux v3.9 the code here assumed rtgenmsg and that's
         * what iproute2 < v3.9.0 used.
         * We can detect the old iproute2. Even including the IFLA_EXT_MASK
         * attribute, its netlink message is shorter than struct ifinfomsg.
         */
	hdrlen = nlmsg_len(cb->nlh) < sizeof(struct ifinfomsg) ?
		 sizeof(struct rtgenmsg) : sizeof(struct ifinfomsg);

	if (nlmsg_parse(cb->nlh, hdrlen, tb, IFLA_MAX, ifla_policy) >= 0) {

		if (tb[IFLA_EXT_MASK])
			ext_filter_mask = nla_get_u32(tb[IFLA_EXT_MASK]);

		if (tb[IFLA_MASTER])
			master_idx = nla_get_u32(tb[IFLA_MASTER]);

		if (tb[IFLA_LINKINFO])
			kind_ops = linkinfo_to_kind_ops(tb[IFLA_LINKINFO]);

		if (master_idx || kind_ops)
			flags |= NLM_F_DUMP_FILTERED;
	}

	for (h = s_h; h < NETDEV_HASHENTRIES; h++, s_idx = 0) {
		idx = 0;
		head = &net->dev_index_head[h];
		hlist_for_each_entry(dev, head, index_hlist) {
			if (link_dump_filtered(dev, master_idx, kind_ops))
				goto cont;
			if (idx < s_idx)
				goto cont;
			err = rtnl_fill_ifinfo(skb, dev, RTM_NEWLINK,
					       NETLINK_CB(cb->skb).portid,
					       cb->nlh->nlmsg_seq, 0,
					       flags,
					       ext_filter_mask);
			/* If we ran out of room on the first message,
                         * we're in trouble
                         */
			WARN_ON((err == -EMSGSIZE) && (skb->len == 0));

			if (err < 0)
				goto out;

			nl_dump_check_consistent(cb, nlmsg_hdr(skb));
cont:
			idx++;
		}
	}
out:
	cb->args[1] = idx;
	cb->args[0] = h;

	return skb->len;
}

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Jiri Pirko
253
64.54%
1
14.29%
David Ahern
75
19.13%
1
14.29%
Michal Schmidt
31
7.91%
1
14.29%
David Gibson
28
7.14%
1
14.29%
Zhang Shengju
3
0.77%
1
14.29%
Eric Dumazet
1
0.26%
1
14.29%
David S. Miller
1
0.26%
1
14.29%
Total
392
100.00%
7
100.00%



int rtnl_nla_parse_ifla(struct nlattr **tb, const struct nlattr *head, int len)
{
	return nla_parse(tb, IFLA_MAX, head, len, ifla_policy);
}
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34
100.00%
1
100.00%


EXPORT_SYMBOL(rtnl_nla_parse_ifla);



struct net *rtnl_link_get_net(struct net *src_net, struct nlattr *tb[])
{
	struct net *net;
	/* Examine the link attributes and figure out which
         * network namespace we are talking about.
         */
	if (tb[IFLA_NET_NS_PID])
		net = get_net_ns_by_pid(nla_get_u32(tb[IFLA_NET_NS_PID]));
	else if (tb[IFLA_NET_NS_FD])
		net = get_net_ns_by_fd(nla_get_u32(tb[IFLA_NET_NS_FD]));
	else
		net = get_net(src_net);
	return net;
}
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Eric W. Biedermann
76
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2
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76
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2
100.00%


EXPORT_SYMBOL(rtnl_link_get_net);



static int validate_linkmsg(struct net_device *dev, struct nlattr *tb[])
{
	if (dev) {
		if (tb[IFLA_ADDRESS] &&
		    nla_len(tb[IFLA_ADDRESS]) < dev->addr_len)
			return -EINVAL;

		if (tb[IFLA_BROADCAST] &&
		    nla_len(tb[IFLA_BROADCAST]) < dev->addr_len)
			return -EINVAL;
	}

	if (tb[IFLA_AF_SPEC]) {
		struct nlattr *af;
		int rem, err;

		nla_for_each_nested(af, tb[IFLA_AF_SPEC], rem) {
			const struct rtnl_af_ops *af_ops;

			if (!(af_ops = rtnl_af_lookup(nla_type(af))))
				return -EAFNOSUPPORT;

			if (!af_ops->set_link_af)
				return -EOPNOTSUPP;

			if (af_ops->validate_link_af) {
				err = af_ops->validate_link_af(dev, af);
				if (err < 0)
					return err;
			}
		}
	}

	return 0;
}

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Thomas Graf
164
99.39%
2
66.67%
Kurt Van Dijck
1
0.61%
1
33.33%
Total
165
100.00%
3
100.00%



static int handle_infiniband_guid(struct net_device *dev, struct ifla_vf_guid *ivt,
				  int guid_type)
{
	const struct net_device_ops *ops = dev->netdev_ops;

	return ops->ndo_set_vf_guid(dev, ivt->vf, ivt->guid, guid_type);
}

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Eli Cohen
47
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47
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1
100.00%



static int handle_vf_guid(struct net_device *dev, struct ifla_vf_guid *ivt, int guid_type)
{
	if (dev->type != ARPHRD_INFINIBAND)
		return -EOPNOTSUPP;

	return handle_infiniband_guid(dev, ivt, guid_type);
}

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41
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1
100.00%



static int do_setvfinfo(struct net_device *dev, struct nlattr **tb)
{
	const struct net_device_ops *ops = dev->netdev_ops;
	int err = -EINVAL;

	if (tb[IFLA_VF_MAC]) {
		struct ifla_vf_mac *ivm = nla_data(tb[IFLA_VF_MAC]);

		err = -EOPNOTSUPP;
		if (ops->ndo_set_vf_mac)
			err = ops->ndo_set_vf_mac(dev, ivm->vf,
						  ivm->mac);
		if (err < 0)
			return err;
	}

	if (tb[IFLA_VF_VLAN]) {
		struct ifla_vf_vlan *ivv = nla_data(tb[IFLA_VF_VLAN]);

		err = -EOPNOTSUPP;
		if (ops->ndo_set_vf_vlan)
			err = ops->ndo_set_vf_vlan(dev, ivv->vf, ivv->vlan,
						   ivv->qos,
						   htons(ETH_P_8021Q));
		if (err < 0)
			return err;
	}

	if (tb[IFLA_VF_VLAN_LIST]) {
		struct ifla_vf_vlan_info *ivvl[MAX_VLAN_LIST_LEN];
		struct nlattr *attr;
		int rem, len = 0;

		err = -EOPNOTSUPP;
		if (!ops->ndo_set_vf_vlan)
			return err;

		nla_for_each_nested(attr, tb[IFLA_VF_VLAN_LIST], rem) {
			if (nla_type(attr) != IFLA_VF_VLAN_INFO ||
			    nla_len(attr) < NLA_HDRLEN) {
				return -EINVAL;
			}
			if (len >= MAX_VLAN_LIST_LEN)
				return -EOPNOTSUPP;
			ivvl[len] = nla_data(attr);

			len++;
		}
		if (len == 0)
			return -EINVAL;

		err = ops->ndo_set_vf_vlan(dev, ivvl[0]->vf, ivvl[0]->vlan,
					   ivvl[0]->qos, ivvl[0]->vlan_proto);
		if (err < 0)
			return err;
	}

	if (tb[IFLA_VF_TX_RATE]) {
		struct ifla_vf_tx_rate *ivt = nla_data(tb[IFLA_VF_TX_RATE]);
		struct ifla_vf_info ivf;

		err = -EOPNOTSUPP;
		if (ops->ndo_get_vf_config)
			err = ops->ndo_get_vf_config(dev, ivt->vf, &ivf);
		if (err < 0)
			return err;

		err = -EOPNOTSUPP;
		if (ops->ndo_set_vf_rate)
			err = ops->ndo_set_vf_rate(dev, ivt->vf,
						   ivf.min_tx_rate,
						   ivt->rate);
		if (err < 0)
			return err;
	}

	if (tb[IFLA_VF_RATE]) {
		struct ifla_vf_rate *ivt = nla_data(tb[IFLA_VF_RATE]);

		err = -EOPNOTSUPP;
		if (ops->ndo_set_vf_rate)
			err = ops->ndo_set_vf_rate(dev, ivt->vf,
						   ivt->min_tx_rate,
						   ivt->max_tx_rate);
		if (err < 0)
			return err;
	}

	if (tb[IFLA_VF_SPOOFCHK]) {
		struct ifla_vf_spoofchk *ivs = nla_data(tb[IFLA_VF_SPOOFCHK]);

		err = -EOPNOTSUPP;
		if (ops->ndo_set_vf_spoofchk)
			err = ops->ndo_set_vf_spoofchk(dev, ivs->vf,
						       ivs->setting);
		if (err < 0)
			return err;
	}

	if (tb[IFLA_VF_LINK_STATE]) {
		struct ifla_vf_link_state *ivl = nla_data(tb[IFLA_VF_LINK_STATE]);

		err = -EOPNOTSUPP;
		if (ops->ndo_set_vf_link_state)
			err = ops->ndo_set_vf_link_state(dev, ivl->vf,
							 ivl->link_state);
		if (err < 0)
			return err;
	}

	if (tb[IFLA_VF_RSS_QUERY_EN]) {
		struct ifla_vf_rss_query_en *ivrssq_en;

		err = -EOPNOTSUPP;
		ivrssq_en = nla_data(tb[IFLA_VF_RSS_QUERY_EN]);
		if (ops->ndo_set_vf_rss_query_en)
			err = ops->ndo_set_vf_rss_query_en(dev, ivrssq_en->vf,
							   ivrssq_en->setting);
		if (err < 0)
			return err;
	}

	if (tb[IFLA_VF_TRUST]) {
		struct ifla_vf_trust *ivt = nla_data(tb[IFLA_VF_TRUST]);

		err = -EOPNOTSUPP;
		if (ops->ndo_set_vf_trust)
			err = ops->ndo_set_vf_trust(dev, ivt->vf, ivt->setting);
		if (err < 0)
			return err;
	}

	if (tb[IFLA_VF_IB_NODE_GUID]) {
		struct ifla_vf_guid *ivt = nla_data(tb[IFLA_VF_IB_NODE_GUID]);

		if (!ops->ndo_set_vf_guid)
			return -EOPNOTSUPP;

		return handle_vf_guid(dev, ivt, IFLA_VF_IB_NODE_GUID);
	}

	if (tb[IFLA_VF_IB_PORT_GUID]) {
		struct ifla_vf_guid *ivt = nla_data(tb[IFLA_VF_IB_PORT_GUID]);

		if (!ops->ndo_set_vf_guid)
			return -EOPNOTSUPP;

		return handle_vf_guid(dev, ivt, IFLA_VF_IB_PORT_GUID);
	}

	return err;
}

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Daniel Borkmann
160
19.80%
1
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Moshe Shemesh
150
18.56%
1
10.00%
Chris Wright
148
18.32%
1
10.00%
Eli Cohen
86
10.64%
1
10.00%
Sucheta Chakraborty
83
10.27%
1
10.00%
Hiroshi Shimamoto
59
7.30%
1
10.00%
Greg Rose
38
4.70%
1
10.00%
Rony Efraim
38
4.70%
1
10.00%
Vladislav Zolotarov
36
4.46%
1
10.00%
Arnd Bergmann
10
1.24%
1
10.00%
Total
808
100.00%
10
100.00%



static int do_set_master(struct net_device *dev, int ifindex)
{
	struct net_device *upper_dev = netdev_master_upper_dev_get(dev);
	const struct net_device_ops *ops;
	int err;

	if (upper_dev) {
		if (upper_dev->ifindex == ifindex)
			return 0;
		ops = upper_dev->netdev_ops;
		if (ops->ndo_del_slave) {
			err = ops->ndo_del_slave(upper_dev, dev);
			if (err)
				return err;
		} else {
			return -EOPNOTSUPP;
		}
	}

	if (ifindex) {
		upper_dev = __dev_get_by_index(dev_net(dev), ifindex);
		if (!upper_dev)
			return -EINVAL;
		ops = upper_dev->netdev_ops;
		if (ops->ndo_add_slave) {
			err = ops->ndo_add_slave(upper_dev, dev);
			if (err)
				return err;
		} else {
			return -EOPNOTSUPP;
		}
	}
	return 0;
}

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Jiri Pirko
158
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2
100.00%
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158
100.00%
2
100.00%


#define DO_SETLINK_MODIFIED	0x01
/* notify flag means notify + modified. */

#define DO_SETLINK_NOTIFY	0x03


static int do_setlink(const struct sk_buff *skb,
		      struct net_device *dev, struct ifinfomsg *ifm,
		      struct nlattr **tb, char *ifname, int status)
{
	const struct net_device_ops *ops = dev->netdev_ops;
	int err;

	if (tb[IFLA_NET_NS_PID] || tb[IFLA_NET_NS_FD]) {
		struct net *net = rtnl_link_get_net(dev_net(dev), tb);
		if (IS_ERR(net)) {
			err = PTR_ERR(net);
			goto errout;
		}
		if (!netlink_ns_capable(skb, net->user_ns, CAP_NET_ADMIN)) {
			put_net(net);
			err = -EPERM;
			goto errout;
		}
		err = dev_change_net_namespace(dev, net, ifname);
		put_net(net);
		if (err)
			goto errout;
		status |= DO_SETLINK_MODIFIED;
	}

	if (tb[IFLA_MAP]) {
		struct rtnl_link_ifmap *u_map;
		struct ifmap k_map;

		if (!ops->ndo_set_config) {
			err = -EOPNOTSUPP;
			goto errout;
		}

		if (!netif_device_present(dev)) {
			err = -ENODEV;
			goto errout;
		}

		u_map = nla_data(tb[IFLA_MAP]);
		k_map.mem_start = (unsigned long) u_map->mem_start;
		k_map.mem_end = (unsigned long) u_map->mem_end;
		k_map.base_addr = (unsigned short) u_map->base_addr;
		k_map.irq = (unsigned char) u_map->irq;
		k_map.dma = (unsigned char) u_map->dma;
		k_map.port = (unsigned char) u_map->port;

		err = ops->ndo_set_config(dev, &k_map);
		if (err < 0)
			goto errout;

		status |= DO_SETLINK_NOTIFY;
	}

	if (tb[IFLA_ADDRESS]) {
		struct sockaddr *sa;
		int len;

		len = sizeof(sa_family_t) + dev->addr_len;
		sa = kmalloc(len, GFP_KERNEL);
		if (!sa) {
			err = -ENOMEM;
			goto errout;
		}
		sa->sa_family = dev->type;
		memcpy(sa->sa_data, nla_data(tb[IFLA_ADDRESS]),
		       dev->addr_len);
		err = dev_set_mac_address(dev, sa);
		kfree(sa);
		if (err)
			goto errout;
		status |= DO_SETLINK_MODIFIED;
	}

	if (tb[IFLA_MTU]) {
		err = dev_set_mtu(dev, nla_get_u32(tb[IFLA_MTU]));
		if (err < 0)
			goto errout;
		status |= DO_SETLINK_MODIFIED;
	}

	if (tb[IFLA_GROUP]) {
		dev_set_group(dev, nla_get_u32(tb[IFLA_GROUP]));
		status |= DO_SETLINK_NOTIFY;
	}

	/*
         * Interface selected by interface index but interface
         * name provided implies that a name change has been
         * requested.
         */
	if (ifm->ifi_index > 0 && ifname[0]) {
		err = dev_change_name(dev, ifname);
		if (err < 0)
			goto errout;
		status |= DO_SETLINK_MODIFIED;
	}

	if (tb[IFLA_IFALIAS]) {
		err = dev_set_alias(dev, nla_data(tb[IFLA_IFALIAS]),
				    nla_len(tb[IFLA_IFALIAS]));
		if (err < 0)
			goto errout;
		status |= DO_SETLINK_NOTIFY;
	}

	if (tb[IFLA_BROADCAST]) {
		nla_memcpy(dev->broadcast, tb[IFLA_BROADCAST], dev->addr_len);
		call_netdevice_notifiers(NETDEV_CHANGEADDR, dev);
	}

	if (ifm->ifi_flags || ifm->ifi_change) {
		err = dev_change_flags(dev, rtnl_dev_combine_flags(dev, ifm));
		if (err < 0)
			goto errout;
	}

	if (tb[IFLA_MASTER]) {
		err = do_set_master(dev, nla_get_u32(tb[IFLA_MASTER]));
		if (err)
			goto errout;
		status |= DO_SETLINK_MODIFIED;
	}

	if (tb[IFLA_CARRIER]) {
		err = dev_change_carrier(dev, nla_get_u8(tb[IFLA_CARRIER]));
		if (err)
			goto errout;
		status |= DO_SETLINK_MODIFIED;
	}

	if (tb[IFLA_TXQLEN]) {
		unsigned long value = nla_get_u32(tb[IFLA_TXQLEN]);
		unsigned long orig_len = dev->tx_queue_len;

		if (dev->tx_queue_len ^ value) {
			dev->tx_queue_len = value;
			err = call_netdevice_notifiers(
			      NETDEV_CHANGE_TX_QUEUE_LEN, dev);
			err = notifier_to_errno(err);
			if (err) {
				dev->tx_queue_len = orig_len;
				goto errout;
			}
			status |= DO_SETLINK_NOTIFY;
		}
	}

	if (tb[IFLA_OPERSTATE])
		set_operstate(dev, nla_get_u8(tb[IFLA_OPERSTATE]));

	if (tb[IFLA_LINKMODE]) {
		unsigned char value = nla_get_u8(tb[IFLA_LINKMODE]);

		write_lock_bh(&dev_base_lock);
		if (dev->link_mode ^ value)
			status |= DO_SETLINK_NOTIFY;
		dev->link_mode = value;
		write_unlock_bh(&dev_base_lock);
	}

	if (tb[IFLA_VFINFO_LIST]) {
		struct nlattr *vfinfo[IFLA_VF_MAX + 1];
		struct nlattr *attr;
		int rem;

		nla_for_each_nested(attr, tb[IFLA_VFINFO_LIST], rem) {
			if (nla_type(attr) != IFLA_VF_INFO ||
			    nla_len(attr) < NLA_HDRLEN) {
				err = -EINVAL;
				goto errout;
			}
			err = nla_parse_nested(vfinfo, IFLA_VF_MAX, attr,
					       ifla_vf_policy);
			if (err < 0)
				goto errout;
			err = do_setvfinfo(dev, vfinfo);
			if (err < 0)
				goto errout;
			status |= DO_SETLINK_NOTIFY;
		}
	}
	err = 0;

	if (tb[IFLA_VF_PORTS]) {
		struct nlattr *port[IFLA_PORT_MAX+1];
		struct nlattr *attr;
		int vf;
		int rem;

		err = -EOPNOTSUPP;
		if (!ops->ndo_set_vf_port)
			goto errout;

		nla_for_each_nested(attr, tb[IFLA_VF_PORTS], rem) {
			if (nla_type(attr) != IFLA_VF_PORT ||
			    nla_len(attr) < NLA_HDRLEN) {
				err = -EINVAL;
				goto errout;
			}
			err = nla_parse_nested(port, IFLA_PORT_MAX, attr,
					       ifla_port_policy);
			if (err < 0)
				goto errout;
			if (!port[IFLA_PORT_VF]) {
				err = -EOPNOTSUPP;
				goto errout;
			}
			vf = nla_get_u32(port[IFLA_PORT_VF]);
			err = ops->ndo_set_vf_port(dev, vf, port);
			if (err < 0)
				goto errout;
			status |= DO_SETLINK_NOTIFY;
		}
	}
	err = 0;

	if (tb[IFLA_PORT_SELF]) {
		struct nlattr *port[IFLA_PORT_MAX+1];

		err = nla_parse_nested(port, IFLA_PORT_MAX,
			tb[IFLA_PORT_SELF], ifla_port_policy);
		if (err < 0)
			goto errout;

		err = -EOPNOTSUPP;
		if (ops->ndo_set_vf_port)
			err = ops->ndo_set_vf_port(dev, PORT_SELF_VF, port);
		if (err < 0)
			goto errout;
		status |= DO_SETLINK_NOTIFY;
	}

	if (tb[IFLA_AF_SPEC]) {
		struct nlattr *af;
		int rem;

		nla_for_each_nested(af, tb[IFLA_AF_SPEC], rem) {
			const struct rtnl_af_ops *af_ops;

			if (!(af_ops = rtnl_af_lookup(nla_type(af))))
				BUG();

			err = af_ops->set_link_af(dev, af);
			if (err < 0)
				goto errout;

			status |= DO_SETLINK_NOTIFY;
		}
	}
	err = 0;

	if (tb[IFLA_PROTO_DOWN]) {
		err = dev_change_proto_down(dev,
					    nla_get_u8(tb[IFLA_PROTO_DOWN]));
		if (err)
			goto errout;
		status |= DO_SETLINK_NOTIFY;
	}

	if (tb[IFLA_XDP]) {
		struct nlattr *xdp[IFLA_XDP_MAX + 1];
		u32 xdp_flags = 0;

		err = nla_parse_nested(xdp, IFLA_XDP_MAX, tb[IFLA_XDP],
				       ifla_xdp_policy);
		if (err < 0)
			goto errout;

		if (xdp[IFLA_XDP_ATTACHED]) {
			err = -EINVAL;
			goto errout;
		}

		if (xdp[IFLA_XDP_FLAGS]) {
			xdp_flags = nla_get_u32(xdp[IFLA_XDP_FLAGS]);
			if (xdp_flags & ~XDP_FLAGS_MASK) {
				err = -EINVAL;
				goto errout;
			}
		}

		if (xdp[IFLA_XDP_FD]) {
			err = dev_change_xdp_fd(dev,
						nla_get_s32(xdp[IFLA_XDP_FD]),
						xdp_flags);
			if (err)
				goto errout;
			status |= DO_SETLINK_NOTIFY;
		}
	}

errout:
	if (status & DO_SETLINK_MODIFIED) {
		if (status & DO_SETLINK_NOTIFY)
			netdev_state_change(dev);

		if (err < 0)
			net_warn_ratelimited("A link change request failed with some changes committed already. Interface %s may have been left with an inconsistent configuration, please check.\n",
					     dev->name);
	}

	return err;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Patrick McHardy
437
29.23%
3
7.14%
Scott Feldman
223
14.92%
1
2.38%
Nicolas Dichtel
113
7.56%
5
11.90%
Eric W. Biedermann
102
6.82%
5
11.90%
Daniel Borkmann
100
6.69%
3
7.14%
Brenden Blanco
96
6.42%
2
4.76%
Thomas Graf
84
5.62%
4
9.52%
Jiri Pirko
71
4.75%
3
7.14%
Stephen Hemminger
56
3.75%
2
4.76%
Jason (Hui) Wang
45
3.01%
1
2.38%
Mitch A Williams
41
2.74%
2
4.76%
Anuradha Karuppiah
35
2.34%
1
2.38%
Vlad Dogaru
23
1.54%
1
2.38%
Linus Torvalds (pre-git)
23
1.54%
2
4.76%
Chris Wright
16
1.07%
1
2.38%
Johannes Berg
11
0.74%
1
2.38%
Stefan Rompf
8
0.54%
1
2.38%
David Howells
7
0.47%
1
2.38%
Joe Perches
2
0.13%
1
2.38%
Jamal Hadi Salim
1
0.07%
1
2.38%
David S. Miller
1
0.07%
1
2.38%
Total
1495
100.00%
42
100.00%



static int rtnl_setlink(struct sk_buff *skb, struct nlmsghdr *nlh)
{
	struct net *net = sock_net(skb->sk);
	struct ifinfomsg *ifm;
	struct net_device *dev;
	int err;
	struct nlattr *tb[IFLA_MAX+1];
	char ifname[IFNAMSIZ];

	err = nlmsg_parse(nlh, sizeof(*ifm), tb, IFLA_MAX, ifla_policy);
	if (err < 0)
		goto errout;

	if (tb[IFLA_IFNAME])
		nla_strlcpy(ifname, tb[IFLA_IFNAME], IFNAMSIZ);
	else
		ifname[0] = '\0';

	err = -EINVAL;
	ifm = nlmsg_data(nlh);
	if (ifm->ifi_index > 0)
		dev = __dev_get_by_index(net, ifm->ifi_index);
	else if (tb[IFLA_IFNAME])
		dev = __dev_get_by_name(net, ifname);
	else
		goto errout;

	if (dev == NULL) {
		err = -ENODEV;
		goto errout;
	}

	err = validate_linkmsg(dev, tb);
	if (err < 0)
		goto errout;

	err = do_setlink(skb, dev, ifm, tb, ifname, 0);
errout:
	return err;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Patrick McHardy
127
57.73%
1
7.14%
Linus Torvalds (pre-git)
33
15.00%
4
28.57%
Thomas Graf
28
12.73%
2
14.29%
Eric W. Biedermann
15
6.82%
2
14.29%
Eric Dumazet
7
3.18%
2
14.29%
Pavel Emelyanov
4
1.82%
1
7.14%
Alexey Kuznetsov
3
1.36%
1
7.14%
Hideaki Yoshifuji / 吉藤英明
3
1.36%
1
7.14%
Total
220
100.00%
14
100.00%



static int rtnl_group_dellink(const struct net *net, int group)
{
	struct net_device *dev, *aux;
	LIST_HEAD(list_kill);
	bool found = false;

	if (!group)
		return -EPERM;

	for_each_netdev(net, dev) {
		if (dev->group == group) {
			const struct rtnl_link_ops *ops;

			found = true;
			ops = dev->rtnl_link_ops;
			if (!ops || !ops->dellink)
				return -EOPNOTSUPP;
		}
	}

	if (!found)
		return -ENODEV;

	for_each_netdev_safe(net, dev, aux) {
		if (dev->group == group) {
			const struct rtnl_link_ops *ops;

			ops = dev->rtnl_link_ops;
			ops->dellink(dev, &list_kill);
		}
	}
	unregister_netdevice_many(&list_kill);

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Américo Wang
150
100.00%
1
100.00%
Total
150
100.00%
1
100.00%



int rtnl_delete_link(struct net_device *dev)
{
	const struct rtnl_link_ops *ops;
	LIST_HEAD(list_kill);

	ops = dev->rtnl_link_ops;
	if (!ops || !ops->dellink)
		return -EOPNOTSUPP;

	ops->dellink(dev, &list_kill);
	unregister_netdevice_many(&list_kill);

	return 0;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Thomas Graf
60
100.00%
1
100.00%
Total
60
100.00%
1
100.00%


EXPORT_SYMBOL_GPL(rtnl_delete_link);



static int rtnl_dellink(struct sk_buff *skb, struct nlmsghdr *nlh)
{
	struct net *net = sock_net(skb->sk);
	struct net_device *dev;
	struct ifinfomsg *ifm;
	char ifname[IFNAMSIZ];
	struct nlattr *tb[IFLA_MAX+1];
	int err;

	err = nlmsg_parse(nlh, sizeof(*ifm), tb, IFLA_MAX, ifla_policy);
	if (err < 0)
		return err;

	if (tb[IFLA_IFNAME])
		nla_strlcpy(ifname, tb[IFLA_IFNAME], IFNAMSIZ);

	ifm = nlmsg_data(nlh);
	if (ifm->ifi_index > 0)
		dev = __dev_get_by_index(net, ifm->ifi_index);
	else if (tb[IFLA_IFNAME])
		dev = __dev_get_by_name(net, ifname);
	else if (tb[IFLA_GROUP])
		return rtnl_group_dellink(net, nla_get_u32(tb[IFLA_GROUP]));
	else
		return -EINVAL;

	if (!dev)
		return -ENODEV;

	return rtnl_delete_link(dev);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Patrick McHardy
132
69.84%
1
14.29%
Américo Wang
22
11.64%
1
14.29%
Thomas Graf
18
9.52%
2
28.57%
Eric W. Biedermann
13
6.88%
1
14.29%
Hideaki Yoshifuji / 吉藤英明
3
1.59%
1
14.29%
Eric Dumazet
1
0.53%
1
14.29%
Total
189
100.00%
7
100.00%



int rtnl_configure_link(struct net_device *dev, const struct ifinfomsg *ifm)
{
	unsigned int old_flags;
	int err;

	old_flags = dev->flags;
	if (ifm && (ifm->ifi_flags || ifm->ifi_change)) {
		err = __dev_change_flags(dev, rtnl_dev_combine_flags(dev, ifm));
		if (err < 0)
			return err;
	}

	dev->rtnl_link_state = RTNL_LINK_INITIALIZED;

	__dev_notify_flags(dev, old_flags, ~0U);
	return 0;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Patrick McHardy
84
96.55%
1
50.00%
Nicolas Dichtel
3
3.45%
1
50.00%
Total
87
100.00%
2
100.00%


EXPORT_SYMBOL(rtnl_configure_link);



struct net_device *rtnl_create_link(struct net *net,
	const char *ifname, unsigned char name_assign_type,
	const struct rtnl_link_ops *ops, struct nlattr *tb[])
{
	struct net_device *dev;
	unsigned int num_tx_queues = 1;
	unsigned int num_rx_queues = 1;

	if (tb[IFLA_NUM_TX_QUEUES])
		num_tx_queues = nla_get_u32(tb[IFLA_NUM_TX_QUEUES]);
	else if (ops->get_num_tx_queues)
		num_tx_queues = ops->get_num_tx_queues();

	if (tb[IFLA_NUM_RX_QUEUES])
		num_rx_queues = nla_get_u32(tb[IFLA_NUM_RX_QUEUES]);
	else if (ops->get_num_rx_queues)
		num_rx_queues = ops->get_num_rx_queues();

	dev = alloc_netdev_mqs(ops->priv_size, ifname, name_assign_type,
			       ops->setup, num_tx_queues, num_rx_queues);
	if (!dev)
		return ERR_PTR(-ENOMEM);

	dev_net_set(dev, net);
	dev->rtnl_link_ops = ops;
	dev->rtnl_link_state = RTNL_LINK_INITIALIZING;

	if (tb[IFLA_MTU])
		dev->mtu = nla_get_u32(tb[IFLA_MTU]);
	if (tb[IFLA_ADDRESS]) {
		memcpy(dev->dev_addr, nla_data(tb[IFLA_ADDRESS]),
				nla_len(tb[IFLA_ADDRESS]));
		dev->addr_assign_type = NET_ADDR_SET;
	}
	if (tb[IFLA_BROADCAST])
		memcpy(dev->broadcast, nla_data(tb[IFLA_BROADCAST]),
				nla_len(tb[IFLA_BROADCAST]));
	if (tb[IFLA_TXQLEN])
		dev->tx_queue_len = nla_get_u32(tb[IFLA_TXQLEN]);
	if (tb[IFLA_OPERSTATE])
		set_operstate(dev, nla_get_u8(tb[IFLA_OPERSTATE]));
	if (tb[IFLA_LINKMODE])
		dev->link_mode = nla_get_u8(tb[IFLA_LINKMODE]);
	if (tb[IFLA_GROUP])
		dev_set_group(dev, nla_get_u32(tb[IFLA_GROUP]));

	return dev;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Pavel Emelyanov
187
56.33%
1
7.14%
Jiri Pirko
67
20.18%
3
21.43%
Patrick McHardy
24
7.23%
2
14.29%
Eric Dumazet
20
6.02%
1
7.14%
Eric W. Biedermann
18
5.42%
2
14.29%
Tobias Klauser
7
2.11%
1
7.14%
Tom Gundersen
6
1.81%
2
14.29%
Stephen Hemminger
2
0.60%
1
7.14%
Thomas Graf
1
0.30%
1
7.14%
Total
332
100.00%
14
100.00%


EXPORT_SYMBOL(rtnl_create_link);



static int rtnl_group_changelink(const struct sk_buff *skb,
		struct net *net, int group,
		struct ifinfomsg *ifm,
		struct nlattr **tb)
{
	struct net_device *dev, *aux;
	int err;

	for_each_netdev_safe(net, dev, aux) {
		if (dev->group == group) {
			err = do_setlink(skb, dev, ifm, tb, NULL, 0);
			if (err < 0)
				return err;
		}
	}

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Vlad Dogaru
77
84.62%
1
33.33%
Eric W. Biedermann
8
8.79%
1
33.33%
Américo Wang
6
6.59%
1
33.33%
Total
91
100.00%
3
100.00%



static int rtnl_newlink(struct sk_buff *skb, struct nlmsghdr *nlh)
{
	struct net *net = sock_net(skb->sk);
	const struct rtnl_link_ops *ops;
	const struct rtnl_link_ops *m_ops = NULL;
	struct net_device *dev;
	struct net_device *master_dev = NULL;
	struct ifinfomsg *ifm;
	char kind[MODULE_NAME_LEN];
	char ifname[IFNAMSIZ];
	struct nlattr *tb[IFLA_MAX+1];
	struct nlattr *linkinfo[IFLA_INFO_MAX+1];
	unsigned char name_assign_type = NET_NAME_USER;
	int err;

#ifdef CONFIG_MODULES
replay:
#endif
	err = nlmsg_parse(nlh, sizeof(*ifm), tb, IFLA_MAX, ifla_policy);
	if (err < 0)
		return err;

	if (tb[IFLA_IFNAME])
		nla_strlcpy(ifname, tb[IFLA_IFNAME], IFNAMSIZ);
	else
		ifname[0] = '\0';

	ifm = nlmsg_data(nlh);
	if (ifm->ifi_index > 0)
		dev = __dev_get_by_index(net, ifm->ifi_index);
	else {
		if (ifname[0])
			dev = __dev_get_by_name(net, ifname);
		else
			dev = NULL;
	}

	if (dev) {
		master_dev = netdev_master_upper_dev_get(dev);
		if (master_dev)
			m_ops = master_dev->rtnl_link_ops;
	}

	err = validate_linkmsg(dev, tb);
	if (err < 0)
		return err;

	if (tb[IFLA_LINKINFO]) {
		err = nla_parse_nested(linkinfo, IFLA_INFO_MAX,
				       tb[IFLA_LINKINFO], ifla_info_policy);
		if (err < 0)
			return err;
	} else
		memset(linkinfo, 0, sizeof(linkinfo));

	if (linkinfo[IFLA_INFO_KIND]) {
		nla_strlcpy(kind, linkinfo[IFLA_INFO_KIND], sizeof(kind));
		ops = rtnl_link_ops_get(kind);
	} else {
		kind[0] = '\0';
		ops = NULL;
	}

	if (1) {
		struct nlattr *attr[ops ? ops->maxtype + 1 : 1];
		struct nlattr *slave_attr[m_ops ? m_ops->slave_maxtype + 1 : 1];
		struct nlattr **data = NULL;
		struct nlattr **slave_data = NULL;
		struct net *dest_net, *link_net = NULL;

		if (ops) {
			if (ops->maxtype && linkinfo[IFLA_INFO_DATA]) {
				err = nla_parse_nested(attr, ops->maxtype,
						       linkinfo[IFLA_INFO_DATA],
						       ops->policy);
				if (err < 0)
					return err;
				data = attr;
			}
			if (ops->validate) {
				err = ops->validate(tb, data);
				if (err < 0)
					return err;
			}
		}

		if (m_ops) {
			if (m_ops->slave_maxtype &&
			    linkinfo[IFLA_INFO_SLAVE_DATA]) {
				err = nla_parse_nested(slave_attr,
						       m_ops->slave_maxtype,
						       linkinfo[IFLA_INFO_SLAVE_DATA],
						       m_ops->slave_policy);
				if (err < 0)
					return err;
				slave_data = slave_attr;
			}
			if (m_ops->slave_validate) {
				err = m_ops->slave_validate(tb, slave_data);
				if (err < 0)
					return err;
			}
		}

		if (dev) {
			int status = 0;

			if (nlh->nlmsg_flags & NLM_F_EXCL)
				return -EEXIST;
			if (nlh->nlmsg_flags & NLM_F_REPLACE)
				return -EOPNOTSUPP;

			if (linkinfo[IFLA_INFO_DATA]) {
				if (!ops || ops != dev->rtnl_link_ops ||
				    !ops->changelink)
					return -EOPNOTSUPP;

				err = ops->changelink(dev, tb, data);
				if (err < 0)
					return err;
				status |= DO_SETLINK_NOTIFY;
			}

			if (linkinfo[IFLA_INFO_SLAVE_DATA]) {
				if (!m_ops || !m_ops->slave_changelink)
					return -EOPNOTSUPP;

				err = m_ops->slave_changelink(master_dev, dev,
							      tb, slave_data);
				if (err < 0)
					return err;
				status |= DO_SETLINK_NOTIFY;
			}

			return do_setlink(skb, dev, ifm, tb, ifname, status);
		}

		if (!(nlh->nlmsg_flags & NLM_F_CREATE)) {
			if (ifm->ifi_index == 0 && tb[IFLA_GROUP])
				return rtnl_group_changelink(skb, net,
						nla_get_u32(tb[IFLA_GROUP]),
						ifm, tb);
			return -ENODEV;
		}

		if (tb[IFLA_MAP] || tb[IFLA_PROTINFO])
			return -EOPNOTSUPP;

		if (!ops) {
#ifdef CONFIG_MODULES
			if (kind[0]) {
				__rtnl_unlock();
				request_module("rtnl-link-%s", kind);
				rtnl_lock();
				ops = rtnl_link_ops_get(kind);
				if (ops)
					goto replay;
			}
#endif
			return -EOPNOTSUPP;
		}

		if (!ops->setup)
			return -EOPNOTSUPP;

		if (!ifname[0]) {
			snprintf(ifname, IFNAMSIZ, "%s%%d", ops->kind);
			name_assign_type = NET_NAME_ENUM;
		}

		dest_net = rtnl_link_get_net(net, tb);
		if (IS_ERR(dest_net))
			return PTR_ERR(dest_net);

		err = -EPERM;
		if (!netlink_ns_capable(skb, dest_net->user_ns, CAP_NET_ADMIN))
			goto out;

		if (tb[IFLA_LINK_NETNSID]) {
			int id = nla_get_s32(tb[IFLA_LINK_NETNSID]);

			link_net = get_net_ns_by_id(dest_net, id);
			if (!link_net) {
				err =  -EINVAL;
				goto out;
			}
			err = -EPERM;
			if (!netlink_ns_capable(skb, link_net->user_ns, CAP_NET_ADMIN))
				goto out;
		}

		dev = rtnl_create_link(link_net ? : dest_net, ifname,
				       name_assign_type, ops, tb);
		if (IS_ERR(dev)) {
			err = PTR_ERR(dev);
			goto out;
		}

		dev->ifindex = ifm->ifi_index;

		if (ops->newlink) {
			err = ops->newlink(link_net ? : net, dev, tb, data);
			/* Drivers should call free_netdev() in ->destructor
                         * and unregister it on failure after registration
                         * so that device could be finally freed in rtnl_unlock.
                         */
			if (err < 0) {
				/* If device is not registered at all, free it now */
				if (dev->reg_state == NETREG_UNINITIALIZED)
					free_netdev(dev);
				goto out;
			}
		} else {
			err = register_netdevice(dev);
			if (err < 0) {
				free_netdev(dev);
				goto out;
			}
		}
		err = rtnl_configure_link(dev, ifm);
		if (err < 0)
			goto out_unregister;
		if (link_net) {
			err = dev_change_net_namespace(dev, dest_net, ifname);
			if (err < 0)
				goto out_unregister;
		}
		if (tb[IFLA_MASTER]) {
			err = do_set_master(dev, nla_get_u32(tb[IFLA_MASTER]));
			if (err)
				goto out_unregister;
		}
out:
		if (link_net)
			put_net(link_net);
		put_net(dest_net);
		return err;
out_unregister:
		if (ops->newlink) {
			LIST_HEAD(list_kill);

			ops->dellink(dev, &list_kill);
			unregister_netdevice_many(&list_kill);
		} else {
			unregister_netdevice(dev);
		}
		goto out;
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Patrick McHardy
520
41.57%
7
15.56%
Jiri Pirko
203
16.23%
2
4.44%
Thomas Graf
105
8.39%
7
15.56%
Nicolas Dichtel
97
7.75%
5
11.11%
Eric W. Biedermann
97
7.75%
6
13.33%
David S. Miller
62
4.96%
2
4.44%
Roland Dreier
49
3.92%
2
4.44%
Theuns Verwoerd
31
2.48%
1
2.22%
Cong Wang
30
2.40%
2
4.44%
Pavel Emelyanov
17
1.36%
2
4.44%
Tom Gundersen
14
1.12%
1
2.22%
Stefan Rompf
7
0.56%
1
2.22%
Eric Dumazet
4
0.32%
1
2.22%
Hideaki Yoshifuji / 吉藤英明
3
0.24%
1
2.22%
Eric Lemoine
3
0.24%
1
2.22%
Vlad Dogaru
3
0.24%
1
2.22%
Johannes Berg
2
0.16%
1
2.22%
Sasha Levin
2
0.16%
1
2.22%
Dan Carpenter
2
0.16%
1
2.22%
Total
1251
100.00%
45
100.00%



static int rtnl_getlink(struct sk_buff *skb, struct nlmsghdr* nlh)
{
	struct net *net = sock_net(skb->sk);
	struct ifinfomsg *ifm;
	char ifname[IFNAMSIZ];
	struct nlattr *tb[IFLA_MAX+1];
	struct net_device *dev = NULL;
	struct sk_buff *nskb;
	int err;
	u32 ext_filter_mask = 0;

	err = nlmsg_parse(nlh, sizeof(*ifm), tb, IFLA_MAX, ifla_policy);
	if (err < 0)
		return err;

	if (tb[IFLA_IFNAME])
		nla_strlcpy(ifname, tb[IFLA_IFNAME], IFNAMSIZ);

	if (tb[IFLA_EXT_MASK])
		ext_filter_mask = nla_get_u32(tb[IFLA_EXT_MASK]);

	ifm = nlmsg_data(nlh);
	if (ifm->ifi_index > 0)
		dev = __dev_get_by_index(net, ifm->ifi_index);
	else if (tb[IFLA_IFNAME])
		dev = __dev_get_by_name(net, ifname);
	else
		return -EINVAL;

	if (dev == NULL)
		return -ENODEV;

	nskb = nlmsg_new(if_nlmsg_size(dev, ext_filter_mask), GFP_KERNEL);
	if (nskb == NULL)
		return -ENOBUFS;

	err = rtnl_fill_ifinfo(nskb, dev, RTM_NEWLINK, NETLINK_CB(skb).portid,
			       nlh->nlmsg_seq, 0, 0, ext_filter_mask);
	if (err < 0) {
		/* -EMSGSIZE implies BUG in if_nlmsg_size */
		WARN_ON(err == -EMSGSIZE);
		kfree_skb(nskb);
	} else
		err = rtnl_unicast(nskb, net, NETLINK_CB(skb).portid);

	return err;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Jean Tourrilhes
89
31.23%
1
6.67%
Thomas Graf
76
26.67%
3
20.00%
Eric Dumazet
51
17.89%
1
6.67%
Greg Rose
26
9.12%
1
6.67%
Patrick McHardy
22
7.72%
4
26.67%
Eric W. Biedermann
13
4.56%
2
13.33%
Eric Sesterhenn / Snakebyte
3
1.05%
1
6.67%
Hideaki Yoshifuji / 吉藤英明
3
1.05%
1
6.67%
Denis V. Lunev
2
0.70%
1
6.67%
Total
285
100.00%
15
100.00%



static u16 rtnl_calcit(struct sk_buff *skb, struct nlmsghdr *nlh)
{
	struct net *net = sock_net(skb->sk);
	struct net_device *dev;
	struct nlattr *tb[IFLA_MAX+1];
	u32 ext_filter_mask = 0;
	u16 min_ifinfo_dump_size = 0;
	int hdrlen;

	/* Same kernel<->userspace interface hack as in rtnl_dump_ifinfo. */
	hdrlen = nlmsg_len(nlh) < sizeof(struct ifinfomsg) ?
		 sizeof(struct rtgenmsg) : sizeof(struct ifinfomsg);

	if (nlmsg_parse(nlh, hdrlen, tb, IFLA_MAX, ifla_policy) >= 0) {
		if (tb[IFLA_EXT_MASK])
			ext_filter_mask = nla_get_u32(tb[IFLA_EXT_MASK]);
	}

	if (!ext_filter_mask)
		return NLMSG_GOODSIZE;
	/*
         * traverse the list of net devices and compute the minimum
         * buffer size based upon the filter mask.
         */
	list_for_each_entry(dev, &net->dev_base_head, dev_list) {
		min_ifinfo_dump_size = max_t(u16, min_ifinfo_dump_size,
					     if_nlmsg_size(dev,
						           ext_filter_mask));
	}

	return nlmsg_total_size(min_ifinfo_dump_size);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Greg Rose
121
76.10%
2
33.33%
Michal Schmidt
29
18.24%
1
16.67%
Eric Dumazet
5
3.14%
1
16.67%
Zhang Shengju
3
1.89%
1
16.67%
Michael Riesch
1
0.63%
1
16.67%
Total
159
100.00%
6
100.00%



static int rtnl_dump_all(struct sk_buff *skb, struct netlink_callback *cb)
{
	int idx;
	int s_idx = cb->family;

	if (s_idx == 0)
		s_idx = 1;
	for (idx = 1; idx <= RTNL_FAMILY_MAX; idx++) {
		int type = cb->nlh->nlmsg_type-RTM_BASE;
		if (idx < s_idx || idx == PF_PACKET)
			continue;
		if (rtnl_msg_handlers[idx] == NULL ||
		    rtnl_msg_handlers[idx][type].dumpit == NULL)
			continue;
		if (idx > s_idx) {
			memset(&cb->args[0], 0, sizeof(cb->args));
			cb->prev_seq = 0;
			cb->seq = 0;
		}
		if (rtnl_msg_handlers[idx][type].dumpit(skb, cb))
			break;
	}
	cb->family = idx;

	return skb->len;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
143
87.20%
2
28.57%
Nicolas Dichtel
14
8.54%
1
14.29%
Thomas Graf
4
2.44%
2
28.57%
Patrick McHardy
2
1.22%
1
14.29%
Adrian Bunk
1
0.61%
1
14.29%
Total
164
100.00%
7
100.00%



struct sk_buff *rtmsg_ifinfo_build_skb(int type, struct net_device *dev,
				       unsigned int change, gfp_t flags)
{
	struct net *net = dev_net(dev);
	struct sk_buff *skb;
	int err = -ENOBUFS;
	size_t if_info_size;

	skb = nlmsg_new((if_info_size = if_nlmsg_size(dev, 0)), flags);
	if (skb == NULL)
		goto errout;

	err = rtnl_fill_ifinfo(skb, dev, type, 0, 0, change, 0, 0);
	if (err < 0) {
		/* -EMSGSIZE implies BUG in if_nlmsg_size() */
		WARN_ON(err == -EMSGSIZE);
		kfree_skb(skb);
		goto errout;
	}
	return skb;
errout:
	if (err < 0)
		rtnl_set_sk_err(net, RTNLGRP_LINK, err);
	return NULL;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
47
33.10%
5
26.32%
Mahesh Bandewar
28
19.72%
1
5.26%
Patrick McHardy
23
16.20%
2
10.53%
Thomas Graf
15
10.56%
3
15.79%
Greg Rose
11
7.75%
2
10.53%
Eric W. Biedermann
7
4.93%
1
5.26%
Alexei Starovoitov
4
2.82%
1
5.26%
Hideaki Yoshifuji / 吉藤英明
3
2.11%
1
5.26%
Jamal Hadi Salim
2
1.41%
1
5.26%
Alexey Kuznetsov
1
0.70%
1
5.26%
Eric Dumazet
1
0.70%
1
5.26%
Total
142
100.00%
19
100.00%



void rtmsg_ifinfo_send(struct sk_buff *skb, struct net_device *dev, gfp_t flags)
{
	struct net *net = dev_net(dev);

	rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL, flags);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Mahesh Bandewar
28
65.12%
1
14.29%
Linus Torvalds (pre-git)
8
18.60%
1
14.29%
Thomas Graf
3
6.98%
1
14.29%
Denis V. Lunev
1
2.33%
1
14.29%
Eric W. Biedermann
1
2.33%
1
14.29%
Patrick McHardy
1
2.33%
1
14.29%
Alexei Starovoitov
1
2.33%
1
14.29%
Total
43
100.00%
7
100.00%



void rtmsg_ifinfo(int type, struct net_device *dev, unsigned int change,
		  gfp_t flags)
{
	struct sk_buff *skb;

	if (dev->reg_state != NETREG_REGISTERED)
		return;

	skb = rtmsg_ifinfo_build_skb(type, dev, change, flags);
	if (skb)
		rtmsg_ifinfo_send(skb, dev, flags);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Mahesh Bandewar
42
70.00%
1
20.00%
Nicolas Dichtel
9
15.00%
1
20.00%
Thomas Graf
7
11.67%
1
20.00%
Linus Torvalds (pre-git)
1
1.67%
1
20.00%
Denis V. Lunev
1
1.67%
1
20.00%
Total
60
100.00%
5
100.00%


EXPORT_SYMBOL(rtmsg_ifinfo);



static int nlmsg_populate_fdb_fill(struct sk_buff *skb,
				   struct net_device *dev,
				   u8 *addr, u16 vid, u32 pid, u32 seq,
				   int type, unsigned int flags,
				   int nlflags, u16 ndm_state)
{
	struct nlmsghdr *nlh;
	struct ndmsg *ndm;

	nlh = nlmsg_put(skb, pid, seq, type, sizeof(*ndm), nlflags);
	if (!nlh)
		return -EMSGSIZE;

	ndm = nlmsg_data(nlh);
	ndm->ndm_family  = AF_BRIDGE;
	ndm->ndm_pad1	 = 0;
	ndm->ndm_pad2    = 0;
	ndm->ndm_flags	 = flags;
	ndm->ndm_type	 = 0;
	ndm->ndm_ifindex = dev->ifindex;
	ndm->ndm_state   = ndm_state;

	if (nla_put(skb, NDA_LLADDR, ETH_ALEN, addr))
		goto nla_put_failure;
	if (vid)
		if (nla_put(skb, NDA_VLAN, sizeof(u16), &vid))
			goto nla_put_failure;

	nlmsg_end(skb, nlh);
	return 0;

nla_put_failure:
	nlmsg_cancel(skb, nlh);
	return -EMSGSIZE;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
John Fastabend
158
80.61%
1
20.00%
Hubert Sokolowski
31
15.82%
2
40.00%
Nicolas Dichtel
4
2.04%
1
20.00%
Johannes Berg
3
1.53%
1
20.00%
Total
196
100.00%
5
100.00%



static inline size_t rtnl_fdb_nlmsg_size(void)
{
	return NLMSG_ALIGN(sizeof(struct ndmsg)) +
	       nla_total_size(ETH_ALEN) +	/* NDA_LLADDR */
	       nla_total_size(sizeof(u16)) +	/* NDA_VLAN */
	       0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
John Fastabend
24
66.67%
1
50.00%
Sabrina Dubroca
12
33.33%
1
50.00%
Total
36
100.00%
2
100.00%



static void rtnl_fdb_notify(struct net_device *dev, u8 *addr, u16 vid, int type,
			    u16 ndm_state)
{
	struct net *net = dev_net(dev);
	struct sk_buff *skb;
	int err = -ENOBUFS;

	skb = nlmsg_new(rtnl_fdb_nlmsg_size(), GFP_ATOMIC);
	if (!skb)
		goto errout;

	err = nlmsg_populate_fdb_fill(skb, dev, addr, vid,
				      0, 0, type, NTF_SELF, 0, ndm_state);
	if (err < 0) {
		kfree_skb(skb);
		goto errout;
	}

	rtnl_notify(skb, net, 0, RTNLGRP_NEIGH, NULL, GFP_ATOMIC);
	return;
errout:
	rtnl_set_sk_err(net, RTNLGRP_NEIGH, err);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
John Fastabend
119
90.84%
1
25.00%
Hubert Sokolowski
10
7.63%
2
50.00%
Nicolas Dichtel
2
1.53%
1
25.00%
Total
131
100.00%
4
100.00%

/**
 * ndo_dflt_fdb_add - default netdevice operation to add an FDB entry
 */


int ndo_dflt_fdb_add(struct ndmsg *ndm,
		     struct nlattr *tb[],
		     struct net_device *dev,
		     const unsigned char *addr, u16 vid,
		     u16 flags)
{
	int err = -EINVAL;

	/* If aging addresses are supported device will need to
         * implement its own handler for this.
         */
	if (ndm->ndm_state && !(ndm->ndm_state & NUD_PERMANENT)) {
		pr_info("%s: FDB only supports static addresses\n", dev->name);
		return err;
	}

	if (vid) {
		pr_info("%s: vlans aren't supported yet for dev_uc|mc_add()\n", dev->name);
		return err;
	}

	if (is_unicast_ether_addr(addr) || is_link_local_ether_addr(addr))
		err = dev_uc_add_excl(dev, addr);
	else if (is_multicast_ether_addr(addr))
		err = dev_mc_add_excl(dev, addr);

	/* Only return duplicate errors if NLM_F_EXCL is set */
	if (err == -EEXIST && !(flags & NLM_F_EXCL))
		err = 0;

	return err;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Vlad Yasevich
126
85.71%
1
33.33%
Or Gerlitz
18
12.24%
1
33.33%
Jiri Pirko
3
2.04%
1
33.33%
Total
147
100.00%
3
100.00%


EXPORT_SYMBOL(ndo_dflt_fdb_add);



static int fdb_vid_parse(struct nlattr *vlan_attr, u16 *p_vid)
{
	u16 vid = 0;

	if (vlan_attr) {
		if (nla_len(vlan_attr) != sizeof(u16)) {
			pr_info("PF_BRIDGE: RTM_NEWNEIGH with invalid vlan\n");
			return -EINVAL;
		}

		vid = nla_get_u16(vlan_attr);

		if (!vid || vid >= VLAN_VID_MASK) {
			pr_info("PF_BRIDGE: RTM_NEWNEIGH with invalid vlan id %d\n",
				vid);
			return -EINVAL;
		}
	}
	*p_vid = vid;
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Jiri Pirko
74
86.05%
1
20.00%
Linus Torvalds (pre-git)
8
9.30%
1
20.00%
Hideaki Yoshifuji / 吉藤英明
2
2.33%
1
20.00%
Denis V. Lunev
1
1.16%
1
20.00%
Linus Torvalds
1
1.16%
1
20.00%
Total
86
100.00%
5
100.00%



static int rtnl_fdb_add(struct sk_buff *skb, struct nlmsghdr *nlh)
{
	struct net *net = sock_net(skb->sk);
	struct ndmsg *ndm;
	struct nlattr *tb[NDA_MAX+1];
	struct net_device *dev;
	u8 *addr;
	u16 vid;
	int err;

	err = nlmsg_parse(nlh, sizeof(*ndm), tb, NDA_MAX, NULL);
	if (err < 0)
		return err;

	ndm = nlmsg_data(nlh);
	if (ndm->ndm_ifindex == 0) {
		pr_info("PF_BRIDGE: RTM_NEWNEIGH with invalid ifindex\n");
		return -EINVAL;
	}

	dev = __dev_get_by_index(net, ndm->ndm_ifindex);
	if (dev == NULL) {
		pr_info("PF_BRIDGE: RTM_NEWNEIGH with unknown ifindex\n");
		return -ENODEV;
	}

	if (!tb[NDA_LLADDR] || nla_len(tb[NDA_LLADDR]) != ETH_ALEN) {
		pr_info("PF_BRIDGE: RTM_NEWNEIGH with invalid address\n");
		return -EINVAL;
	}

	addr = nla_data(tb[NDA_LLADDR]);

	err = fdb_vid_parse(tb[NDA_VLAN], &vid);
	if (err)
		return err;

	err = -EOPNOTSUPP;

	/* Support fdb on master device the net/bridge default case */
	if ((!ndm->ndm_flags || ndm->ndm_flags & NTF_MASTER) &&
	    (dev->priv_flags & IFF_BRIDGE_PORT)) {
		struct net_device *br_dev = netdev_master_upper_dev_get(dev);
		const struct net_device_ops *ops = br_dev->netdev_ops;

		err = ops->ndo_fdb_add(ndm, tb, dev, addr, vid,
				       nlh->nlmsg_flags);
		if (err)
			goto out;
		else
			ndm->ndm_flags &= ~NTF_MASTER;
	}

	/* Embedded bridge, macvlan, and any other device support */
	if ((ndm->ndm_flags & NTF_SELF)) {
		if (dev->netdev_ops->ndo_fdb_add)
			err = dev->netdev_ops->ndo_fdb_add(ndm, tb, dev, addr,
							   vid,
							   nlh->nlmsg_flags);
		else
			err = ndo_dflt_fdb_add(ndm, tb, dev, addr, vid,
					       nlh->nlmsg_flags);

		if (!err) {
			rtnl_fdb_notify(dev, addr, vid, RTM_NEWNEIGH,
					ndm->ndm_state);
			ndm->ndm_flags &= ~NTF_SELF;
		}
	}
out:
	return err;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
John Fastabend
229
59.64%
2
11.76%
Jiri Pirko
48
12.50%
2
11.76%
Linus Torvalds (pre-git)
47
12.24%
2
11.76%
Vlad Yasevich
22
5.73%
1
5.88%
Denis V. Lunev
10
2.60%
1
5.88%
Thomas Graf
7
1.82%
2
11.76%
Hubert Sokolowski
6
1.56%
2
11.76%
Stephen Hemminger
4
1.04%
1
5.88%
Greg Rose
4
1.04%
1
5.88%
Hideaki Yoshifuji / 吉藤英明
3
0.78%
1
5.88%
Eric Dumazet
3
0.78%
1
5.88%
Linus Torvalds
1
0.26%
1
5.88%
Total
384
100.00%
17
100.00%

/**
 * ndo_dflt_fdb_del - default netdevice operation to delete an FDB entry
 */


int ndo_dflt_fdb_del(struct ndmsg *ndm,
		     struct nlattr *tb[],
		     struct net_device *dev,
		     const unsigned char *addr, u16 vid)
{
	int err = -EINVAL;

	/* If aging addresses are supported device will need to
         * implement its own handler for this.
         */
	if (!(ndm->ndm_state & NUD_PERMANENT)) {
		pr_info("%s: FDB only supports static addresses\n", dev->name);
		return err;
	}

	if (is_unicast_ether_addr(addr) || is_link_local_ether_addr(addr))
		err = dev_uc_del(dev, addr);
	else if (is_multicast_ether_addr(addr))
		err = dev_mc_del(dev, addr);

	return err;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Vlad Yasevich
95
92.23%
1
25.00%
Sridhar Samudrala
3
2.91%
1
25.00%
Jiri Pirko
3
2.91%
1
25.00%
Alexander Duyck
2
1.94%
1
25.00%
Total
103
100.00%
4
100.00%


EXPORT_SYMBOL(ndo_dflt_fdb_del);



static int rtnl_fdb_del(struct sk_buff *skb, struct nlmsghdr *nlh)
{
	struct net *net = sock_net(skb->sk);
	struct ndmsg *ndm;
	struct nlattr *tb[NDA_MAX+1];
	struct net_device *dev;
	int err = -EINVAL;
	__u8 *addr;
	u16 vid;

	if (!netlink_capable(skb, CAP_NET_ADMIN))
		return -EPERM;

	err = nlmsg_parse(nlh, sizeof(*ndm), tb, NDA_MAX, NULL);
	if (err < 0)
		return err;

	ndm = nlmsg_data(nlh);
	if (ndm->ndm_ifindex == 0) {
		pr_info("PF_BRIDGE: RTM_DELNEIGH with invalid ifindex\n");
		return -EINVAL;
	}

	dev = __dev_get_by_index(net, ndm->ndm_ifindex);
	if (dev == NULL) {
		pr_info("PF_BRIDGE: RTM_DELNEIGH with unknown ifindex\n");
		return -ENODEV;
	}

	if (!tb[NDA_LLADDR] || nla_len(tb[NDA_LLADDR]) != ETH_ALEN) {
		pr_info("PF_BRIDGE: RTM_DELNEIGH with invalid address\n");
		return -EINVAL;
	}

	addr = nla_data(tb[NDA_LLADDR]);

	err = fdb_vid_parse(tb[NDA_VLAN], &vid);
	if (err)
		return err;

	err = -EOPNOTSUPP;

	/* Support fdb on master device the net/bridge default case */
	if ((!ndm->ndm_flags || ndm->ndm_flags & NTF_MASTER) &&
	    (dev->priv_flags & IFF_BRIDGE_PORT)) {
		struct net_device *br_dev = netdev_master_upper_dev_get(dev);
		const struct net_device_ops *ops = br_dev->netdev_ops;

		if (ops->ndo_fdb_del)
			err = ops->ndo_fdb_del(ndm, tb, dev, addr, vid);

		if (err)
			goto out;
		else
			ndm->ndm_flags &= ~NTF_MASTER;
	}

	/* Embedded bridge, macvlan, and any other device support */
	if (ndm->ndm_flags & NTF_SELF) {
		if (dev->netdev_ops->ndo_fdb_del)
			err = dev->netdev_ops->ndo_fdb_del(ndm, tb, dev, addr,
							   vid);
		else
			err = ndo_dflt_fdb_del(ndm, tb, dev, addr, vid);

		if (!err) {
			rtnl_fdb_notify(dev, addr, vid, RTM_DELNEIGH,
					ndm->ndm_state);
			ndm->ndm_flags &= ~NTF_SELF;
		}
	}
out:
	return err;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
John Fastabend
271
68.96%
2
22.22%
Vlad Yasevich
69
17.56%
2
22.22%
Jiri Pirko
44
11.20%
2
22.22%
Hubert Sokolowski
6
1.53%
2
22.22%
Eric W. Biedermann
3
0.76%
1
11.11%
Total
393
100.00%
9
100.00%



static int nlmsg_populate_fdb(struct sk_buff *skb,
			      struct netlink_callback *cb,
			      struct net_device *dev,
			      int *idx,
			      struct netdev_hw_addr_list *list)
{
	struct netdev_hw_addr *ha;
	int err;
	u32 portid, seq;

	portid = NETLINK_CB(cb->skb).portid;
	seq = cb->nlh->nlmsg_seq;

	list_for_each_entry(ha, &list->list, list) {
		if (*idx < cb->args[2])
			goto skip;

		err = nlmsg_populate_fdb_fill(skb, dev, ha->addr, 0,
					      portid, seq,
					      RTM_NEWNEIGH, NTF_SELF,
					      NLM_F_MULTI, NUD_PERMANENT);
		if (err < 0)
			return err;
skip:
		*idx += 1;
	}
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
John Fastabend
122
91.73%
2
28.57%
Eric W. Biedermann
4
3.01%
1
14.29%
Hubert Sokolowski
4
3.01%
2
28.57%
Nicolas Dichtel
2
1.50%
1
14.29%
Roopa Prabhu
1
0.75%
1
14.29%
Total
133
100.00%
7
100.00%

/**
 * ndo_dflt_fdb_dump - default netdevice operation to dump an FDB table.
 * @nlh: netlink message header
 * @dev: netdevice
 *
 * Default netdevice operation to dump the existing unicast address list.
 * Returns number of addresses from list put in skb.
 */


int ndo_dflt_fdb_dump(struct sk_buff *skb,
		      struct netlink_callback *cb,
		      struct net_device *dev,
		      struct net_device *filter_dev,
		      int *idx)
{
	int err;

	netif_addr_lock_bh(dev);
	err = nlmsg_populate_fdb(skb, cb, dev, idx, &dev->uc);
	if (err)
		goto out;
	err = nlmsg_populate_fdb(skb, cb, dev, idx, &dev->mc);
out:
	netif_addr_unlock_bh(dev);
	return err;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
John Fastabend
81
90.00%
1
25.00%
Jamal Hadi Salim
5
5.56%
1
25.00%
Zhang Shengju
2
2.22%
1
25.00%
Roopa Prabhu
2
2.22%
1
25.00%
Total
90
100.00%
4
100.00%


EXPORT_SYMBOL(ndo_dflt_fdb_dump);



static int rtnl_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb)
{
	struct net_device *dev;
	struct nlattr *tb[IFLA_MAX+1];
	struct net_device *br_dev = NULL;
	const struct net_device_ops *ops = NULL;
	const struct net_device_ops *cops = NULL;
	struct ifinfomsg *ifm = nlmsg_data(cb->nlh);
	struct net *net = sock_net(skb->sk);
	struct hlist_head *head;
	int brport_idx = 0;
	int br_idx = 0;
	int h, s_h;
	int idx = 0, s_idx;
	int err = 0;
	int fidx = 0;

	if (nlmsg_parse(cb->nlh, sizeof(struct ifinfomsg), tb, IFLA_MAX,
			ifla_policy) == 0) {
		if (tb[IFLA_MASTER])
			br_idx = nla_get_u32(tb[IFLA_MASTER]);
	}

	brport_idx = ifm->ifi_index;

	if (br_idx) {
		br_dev = __dev_get_by_index(net, br_idx);
		if (!br_dev)
			return -ENODEV;

		ops = br_dev->netdev_ops;
	}

	s_h = cb->args[0];
	s_idx = cb->args[1];

	for (h = s_h; h < NETDEV_HASHENTRIES; h++, s_idx = 0) {
		idx = 0;
		head = &net->dev_index_head[h];
		hlist_for_each_entry(dev, head, index_hlist) {

			if (brport_idx && (dev->ifindex != brport_idx))
				continue;

			if (!br_idx) { /* user did not specify a specific bridge */
				if (dev->priv_flags & IFF_BRIDGE_PORT) {
					br_dev = netdev_master_upper_dev_get(dev);
					cops = br_dev->netdev_ops;
				}
			} else {
				if (dev != br_dev &&
				    !(dev->priv_flags & IFF_BRIDGE_PORT))
					continue;

				if (br_dev != netdev_master_upper_dev_get(dev) &&
				    !(dev->priv_flags & IFF_EBRIDGE))
					continue;
				cops = ops;
			}

			if (idx < s_idx)
				goto cont;

			if (dev->priv_flags & IFF_BRIDGE_PORT) {
				if (cops && cops->ndo_fdb_dump) {
					err = cops->ndo_fdb_dump(skb, cb,
								br_dev, dev,
								&fidx);
					if (err == -EMSGSIZE)
						goto out;
				}
			}

			if (dev->netdev_ops->ndo_fdb_dump)
				err = dev->netdev_ops->ndo_fdb_dump(skb, cb,
								    dev, NULL,
								    &fidx);
			else
				err = ndo_dflt_fdb_dump(skb, cb, dev, NULL,
							&fidx);
			if (err == -EMSGSIZE)
				goto out;

			cops = NULL;

			/* reset fdb offset to 0 for rest of the interfaces */
			cb->args[2] = 0;
			fidx = 0;
cont:
			idx++;
		}
	}

out:
	cb->args[0] = h;
	cb->args[1] = idx;
	cb->args[2] = fidx;

	return skb->len;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Jamal Hadi Salim
227
44.60%
2
22.22%
Roopa Prabhu
137
26.92%
1
11.11%
John Fastabend
98
19.25%
2
22.22%
MINOURA Makoto / 箕浦 真
21
4.13%
1
11.11%
Hubert Sokolowski
15
2.95%
1
11.11%
Jiri Pirko
10
1.96%
1
11.11%
Vlad Yasevich
1
0.20%
1
11.11%
Total
509
100.00%
9
100.00%



static int brport_nla_put_flag(struct sk_buff *skb, u32 flags, u32 mask,
			       unsigned int attrnum, unsigned int flag)
{
	if (mask & flag)
		return nla_put_u8(skb, attrnum, !!(flags & flag));
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Scott Feldman
50
100.00%
1
100.00%
Total
50
100.00%
1
100.00%



int ndo_dflt_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
			    struct net_device *dev, u16 mode,
			    u32 flags, u32 mask, int nlflags,
			    u32 filter_mask,
			    int (*vlan_fill)(struct sk_buff *skb,
					     struct net_device *dev,
					     u32 filter_mask))
{
	struct nlmsghdr *nlh;
	struct ifinfomsg *ifm;
	struct nlattr *br_afspec;
	struct nlattr *protinfo;
	u8 operstate = netif_running(dev) ? dev->operstate : IF_OPER_DOWN;
	struct net_device *br_dev = netdev_master_upper_dev_get(dev);
	int err = 0;

	nlh = nlmsg_put(skb, pid, seq, RTM_NEWLINK, sizeof(*ifm), nlflags);
	if (nlh == NULL)
		return -EMSGSIZE;

	ifm = nlmsg_data(nlh);
	ifm->ifi_family = AF_BRIDGE;
	ifm->__ifi_pad = 0;
	ifm->ifi_type = dev->type;
	ifm->ifi_index = dev->ifindex;
	ifm->ifi_flags = dev_get_flags(dev);
	ifm->ifi_change = 0;


	if (nla_put_string(skb, IFLA_IFNAME, dev->name) ||
	    nla_put_u32(skb, IFLA_MTU, dev->mtu) ||
	    nla_put_u8(skb, IFLA_OPERSTATE, operstate) ||
	    (br_dev &&
	     nla_put_u32(skb, IFLA_MASTER, br_dev->ifindex)) ||
	    (dev->addr_len &&
	     nla_put(skb, IFLA_ADDRESS, dev->addr_len, dev->dev_addr)) ||
	    (dev->ifindex != dev_get_iflink(dev) &&
	     nla_put_u32(skb, IFLA_LINK, dev_get_iflink(dev))))
		goto nla_put_failure;

	br_afspec = nla_nest_start(skb, IFLA_AF_SPEC);
	if (!br_afspec)
		goto nla_put_failure;

	if (nla_put_u16(skb, IFLA_BRIDGE_FLAGS, BRIDGE_FLAGS_SELF)) {
		nla_nest_cancel(skb, br_afspec);
		goto nla_put_failure;
	}

	if (mode != BRIDGE_MODE_UNDEF) {
		if (nla_put_u16(skb, IFLA_BRIDGE_MODE, mode)) {
			nla_nest_cancel(skb, br_afspec);
			goto nla_put_failure;
		}
	}
	if (vlan_fill) {
		err = vlan_fill(skb, dev, filter_mask);
		if (err) {
			nla_nest_cancel(skb, br_afspec);
			goto nla_put_failure;
		}
	}
	nla_nest_end(skb, br_afspec);

	protinfo = nla_nest_start(skb, IFLA_PROTINFO | NLA_F_NESTED);
	if (!protinfo)
		goto nla_put_failure;

	if (brport_nla_put_flag(skb, flags, mask,
				IFLA_BRPORT_MODE, BR_HAIRPIN_MODE) ||
	    brport_nla_put_flag(skb, flags, mask,
				IFLA_BRPORT_GUARD, BR_BPDU_GUARD) ||
	    brport_nla_put_flag(skb, flags, mask,
				IFLA_BRPORT_FAST_LEAVE,
				BR_MULTICAST_FAST_LEAVE) ||
	    brport_nla_put_flag(skb, flags, mask,
				IFLA_BRPORT_PROTECT, BR_ROOT_BLOCK) ||
	    brport_nla_put_flag(skb, flags, mask,
				IFLA_BRPORT_LEARNING, BR_LEARNING) ||
	    brport_nla_put_flag(skb, flags, mask,
				IFLA_BRPORT_LEARNING_SYNC, BR_LEARNING_SYNC) ||
	    brport_nla_put_flag(skb, flags, mask,
				IFLA_BRPORT_UNICAST_FLOOD, BR_FLOOD) ||
	    brport_nla_put_flag(skb, flags, mask,
				IFLA_BRPORT_PROXYARP, BR_PROXYARP)) {
		nla_nest_cancel(skb, protinfo);
		goto nla_put_failure;
	}

	nla_nest_end(skb, protinfo);

	nlmsg_end(skb, nlh);
	return 0;
nla_put_failure:
	nlmsg_cancel(skb, nlh);
	return err ? err : -EMSGSIZE;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
John Fastabend
295
52.40%
1
12.50%
Scott Feldman
220
39.08%
2
25.00%
Roopa Prabhu
23
4.09%
1
12.50%
Jiri Pirko
12
2.13%
1
12.50%
Nicolas Dichtel
10
1.78%
2
25.00%
Johannes Berg
3
0.53%
1
12.50%
Total
563
100.00%
8
100.00%


EXPORT_SYMBOL_GPL(ndo_dflt_bridge_getlink);



static int rtnl_bridge_getlink(struct sk_buff *skb, struct netlink_callback *cb)
{
	struct net *net = sock_net(skb->sk);
	struct net_device *dev;
	int idx = 0;
	u32 portid = NETLINK_CB(cb->skb).portid;
	u32 seq = cb->nlh->nlmsg_seq;
	u32 filter_mask = 0;
	int err;

	if (nlmsg_len(cb->nlh) > sizeof(struct ifinfomsg)) {
		struct nlattr *extfilt;

		extfilt = nlmsg_find_attr(cb->nlh, sizeof(struct ifinfomsg),
					  IFLA_EXT_MASK);
		if (extfilt) {
			if (nla_len(extfilt) < sizeof(filter_mask))
				return -EINVAL;

			filter_mask = nla_get_u32(extfilt);
		}
	}

	rcu_read_lock();
	for_each_netdev_rcu(net, dev) {
		const struct net_device_ops *ops = dev->netdev_ops;
		struct net_device *br_dev = netdev_master_upper_dev_get(dev);

		if (br_dev && br_dev->netdev_ops->ndo_bridge_getlink) {
			if (idx >= cb->args[0]) {
				err = br_dev->netdev_ops->ndo_bridge_getlink(
						skb, portid, seq, dev,
						filter_mask, NLM_F_MULTI);
				if (err < 0 && err != -EOPNOTSUPP)
					break;
			}
			idx++;
		}

		if (ops->ndo_bridge_getlink) {
			if (idx >= cb->args[0]) {
				err = ops->ndo_bridge_getlink(skb, portid,
							      seq, dev,
							      filter_mask,
							      NLM_F_MULTI);
				if (err < 0 && err != -EOPNOTSUPP)
					break;
			}
			idx++;
		}
	}
	rcu_read_unlock();
	cb->args[0] = idx;

	return skb->len;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
John Fastabend
160
53.51%
1
12.50%
Thomas Graf
40
13.38%
1
12.50%
Vlad Yasevich
36
12.04%
1
12.50%
Roopa Prabhu
31
10.37%
1
12.50%
Ben Hutchings
20
6.69%
1
12.50%
Jiri Pirko
7
2.34%
1
12.50%
Nicolas Dichtel
4
1.34%
1
12.50%
Asbjörn Sloth Tönnesen
1
0.33%
1
12.50%
Total
299
100.00%
8
100.00%



static inline size_t bridge_nlmsg_size(void)
{
	return NLMSG_ALIGN(sizeof(struct ifinfomsg))
		+ nla_total_size(IFNAMSIZ)	/* IFLA_IFNAME */
		+ nla_total_size(MAX_ADDR_LEN)	/* IFLA_ADDRESS */
		+ nla_total_size(sizeof(u32))	/* IFLA_MASTER */
		+ nla_total_size(sizeof(u32))	/* IFLA_MTU */
		+ nla_total_size(sizeof(u32))	/* IFLA_LINK */
		+ nla_total_size(sizeof(u32))	/* IFLA_OPERSTATE */
		+ nla_total_size(sizeof(u8))	/* IFLA_PROTINFO */
		+ nla_total_size(sizeof(struct nlattr))	/* IFLA_AF_SPEC */
		+ nla_total_size(sizeof(u16))	/* IFLA_BRIDGE_FLAGS */
		+ nla_total_size(sizeof(u16));	/* IFLA_BRIDGE_MODE */
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
John Fastabend
104
100.00%
1
100.00%
Total
104
100.00%
1
100.00%



static int rtnl_bridge_notify(struct net_device *dev)
{
	struct net *net = dev_net(dev);
	struct sk_buff *skb;
	int err = -EOPNOTSUPP;

	if (!dev->netdev_ops->ndo_bridge_getlink)
		return 0;

	skb = nlmsg_new(bridge_nlmsg_size(), GFP_ATOMIC);
	if (!skb) {
		err = -ENOMEM;
		goto errout;
	}

	err = dev->netdev_ops->ndo_bridge_getlink(skb, 0, 0, dev, 0, 0);
	if (err < 0)
		goto errout;

	if (!skb->len)
		goto errout;

	rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL, GFP_ATOMIC);
	return 0;
errout:
	WARN_ON(err == -EMSGSIZE);
	kfree_skb(skb);
	if (err)
		rtnl_set_sk_err(net, RTNLGRP_LINK, err);
	return err;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
John Fastabend
128
81.01%
1
20.00%
Roopa Prabhu
26
16.46%
2
40.00%
Nicolas Dichtel
2
1.27%
1
20.00%
Vlad Yasevich
2
1.27%
1
20.00%
Total
158
100.00%
5
100.00%



static int rtnl_bridge_setlink(struct sk_buff *skb, struct nlmsghdr *nlh)
{
	struct net *net = sock_net(skb->sk);
	struct ifinfomsg *ifm;
	struct net_device *dev;
	struct nlattr *br_spec, *attr = NULL;
	int rem, err = -EOPNOTSUPP;
	u16 flags = 0;
	bool have_flags = false;

	if (nlmsg_len(nlh) < sizeof(*ifm))
		return -EINVAL;

	ifm = nlmsg_data(nlh);
	if (ifm->ifi_family != AF_BRIDGE)
		return -EPFNOSUPPORT;

	dev = __dev_get_by_index(net, ifm->ifi_index);
	if (!dev) {
		pr_info("PF_BRIDGE: RTM_SETLINK with unknown ifindex\n");
		return -ENODEV;
	}

	br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
	if (br_spec) {
		nla_for_each_nested(attr, br_spec, rem) {
			if (nla_type(attr) == IFLA_BRIDGE_FLAGS) {
				if (nla_len(attr) < sizeof(flags))
					return -EINVAL;

				have_flags = true;
				flags = nla_get_u16(attr);
				break;
			}
		}
	}

	if (!flags || (flags & BRIDGE_FLAGS_MASTER)) {
		struct net_device *br_dev = netdev_master_upper_dev_get(dev);

		if (!br_dev || !br_dev->netdev_ops->ndo_bridge_setlink) {
			err = -EOPNOTSUPP;
			goto out;
		}

		err = br_dev->netdev_ops->ndo_bridge_setlink(dev, nlh, flags);
		if (err)
			goto out;

		flags &= ~BRIDGE_FLAGS_MASTER;
	}

	if ((flags & BRIDGE_FLAGS_SELF)) {
		if (!dev->netdev_ops->ndo_bridge_setlink)
			err = -EOPNOTSUPP;
		else
			err = dev->netdev_ops->ndo_bridge_setlink(dev, nlh,
								  flags);
		if (!err) {
			flags &= ~BRIDGE_FLAGS_SELF;

			/* Generate event to notify upper layer of bridge
                         * change
                         */
			err = rtnl_bridge_notify(dev);
		}
	}

	if (have_flags)
		memcpy(nla_data(attr), &flags, sizeof(flags));
out:
	return err;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
John Fastabend
313
87.92%
3
42.86%
Thomas Graf
16
4.49%
1
14.29%
Roopa Prabhu
14
3.93%
2
28.57%
Jiri Pirko
13
3.65%
1
14.29%
Total
356
100.00%
7
100.00%



static int rtnl_bridge_dellink(struct sk_buff *skb, struct nlmsghdr *nlh)
{
	struct net *net = sock_net(skb->sk);
	struct ifinfomsg *ifm;
	struct net_device *dev;
	struct nlattr *br_spec, *attr = NULL;
	int rem, err = -EOPNOTSUPP;
	u16 flags = 0;
	bool have_flags = false;

	if (nlmsg_len(nlh) < sizeof(*ifm))
		return -EINVAL;

	ifm = nlmsg_data(nlh);
	if (ifm->ifi_family != AF_BRIDGE)
		return -EPFNOSUPPORT;

	dev = __dev_get_by_index(net, ifm->ifi_index);
	if (!dev) {
		pr_info("PF_BRIDGE: RTM_SETLINK with unknown ifindex\n");
		return -ENODEV;
	}

	br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
	if (br_spec) {
		nla_for_each_nested(attr, br_spec, rem) {
			if (nla_type(attr) == IFLA_BRIDGE_FLAGS) {
				if (nla_len(attr) < sizeof(flags))
					return -EINVAL;

				have_flags = true;
				flags = nla_get_u16(attr);
				break;
			}
		}
	}

	if (!flags || (flags & BRIDGE_FLAGS_MASTER)) {
		struct net_device *br_dev = netdev_master_upper_dev_get(dev);

		if (!br_dev || !br_dev->netdev_ops->ndo_bridge_dellink) {
			err = -EOPNOTSUPP;
			goto out;
		}

		err = br_dev->netdev_ops->ndo_bridge_dellink(dev, nlh, flags);
		if (err)
			goto out;

		flags &= ~BRIDGE_FLAGS_MASTER;
	}

	if ((flags & BRIDGE_FLAGS_SELF)) {
		if (!dev->netdev_ops->ndo_bridge_dellink)
			err = -EOPNOTSUPP;
		else
			err = dev->netdev_ops->ndo_bridge_dellink(dev, nlh,
								  flags);

		if (!err) {
			flags &= ~BRIDGE_FLAGS_SELF;

			/* Generate event to notify upper layer of bridge
                         * change
                         */
			err = rtnl_bridge_notify(dev);
		}
	}

	if (have_flags)
		memcpy(nla_data(attr), &flags, sizeof(flags));
out:
	return err;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Vlad Yasevich
326
91.57%
1
25.00%
Thomas Graf
16
4.49%
1
25.00%
Roopa Prabhu
14
3.93%
2
50.00%
Total
356
100.00%
4
100.00%



static bool stats_attr_valid(unsigned int mask, int attrid, int idxattr)
{
	return (mask & IFLA_STATS_FILTER_BIT(attrid)) &&
	       (!idxattr || idxattr == attrid);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Nikolay Aleksandrov
35
100.00%
1
100.00%
Total
35
100.00%
1
100.00%


#define IFLA_OFFLOAD_XSTATS_FIRST (IFLA_OFFLOAD_XSTATS_UNSPEC + 1)


static int rtnl_get_offload_stats_attr_size(int attr_id)
{
	switch (attr_id) {
	case IFLA_OFFLOAD_XSTATS_CPU_HIT:
		return sizeof(struct rtnl_link_stats64);
	}

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Nogah Frankel
28
100.00%
1
100.00%
Total
28
100.00%
1
100.00%



static int rtnl_get_offload_stats(struct sk_buff *skb, struct net_device *dev,
				  int *prividx)
{
	struct nlattr *attr = NULL;
	int attr_id, size;
	void *attr_data;
	int err;

	if (!(dev->netdev_ops && dev->netdev_ops->ndo_has_offload_stats &&
	      dev->netdev_ops->ndo_get_offload_stats))
		return -ENODATA;

	for (attr_id = IFLA_OFFLOAD_XSTATS_FIRST;
	     attr_id <= IFLA_OFFLOAD_XSTATS_MAX; attr_id++) {
		if (attr_id < *prividx)
			continue;

		size = rtnl_get_offload_stats_attr_size(attr_id);
		if (!size)
			continue;

		if (!dev->netdev_ops->ndo_has_offload_stats(dev, attr_id))
			continue;

		attr = nla_reserve_64bit(skb, attr_id, size,
					 IFLA_OFFLOAD_XSTATS_UNSPEC);
		if (!attr)
			goto nla_put_failure;

		attr_data = nla_data(attr);
		memset(attr_data, 0, size);
		err = dev->netdev_ops->ndo_get_offload_stats(attr_id, dev,
							     attr_data);
		if (err)
			goto get_offload_stats_failure;
	}

	if (!attr)
		return -ENODATA;

	*prividx = 0;
	return 0;

nla_put_failure:
	err = -EMSGSIZE;
get_offload_stats_failure:
	*prividx = attr_id;
	return err;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Nogah Frankel
206
99.04%
1
50.00%
Or Gerlitz
2
0.96%
1
50.00%
Total
208
100.00%
2
100.00%



static int rtnl_get_offload_stats_size(const struct net_device *dev)
{
	int nla_size = 0;
	int attr_id;
	int size;

	if (!(dev->netdev_ops && dev->netdev_ops->ndo_has_offload_stats &&
	      dev->netdev_ops->ndo_get_offload_stats))
		return 0;

	for (attr_id = IFLA_OFFLOAD_XSTATS_FIRST;
	     attr_id <= IFLA_OFFLOAD_XSTATS_MAX; attr_id++) {
		if (!dev->netdev_ops->ndo_has_offload_stats(dev, attr_id))
			continue;
		size = rtnl_get_offload_stats_attr_size(attr_id);
		nla_size += nla_total_size_64bit(size);
	}

	if (nla_size != 0)
		nla_size += nla_total_size(0);

	return nla_size;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Nogah Frankel
105
98.13%
1
50.00%
Or Gerlitz
2
1.87%
1
50.00%
Total
107
100.00%
2
100.00%



static int rtnl_fill_statsinfo(struct sk_buff *skb, struct net_device *dev,
			       int type, u32 pid, u32 seq, u32 change,
			       unsigned int flags, unsigned int filter_mask,
			       int *idxattr, int *prividx)
{
	struct if_stats_msg *ifsm;
	struct nlmsghdr *nlh;
	struct nlattr *attr;
	int s_prividx = *prividx;
	int err;

	ASSERT_RTNL();

	nlh = nlmsg_put(skb, pid, seq, type, sizeof(*ifsm), flags);
	if (!nlh)
		return -EMSGSIZE;

	ifsm = nlmsg_data(nlh);
	ifsm->ifindex = dev->ifindex;
	ifsm->filter_mask = filter_mask;

	if (stats_attr_valid(filter_mask, IFLA_STATS_LINK_64, *idxattr)) {
		struct rtnl_link_stats64 *sp;

		attr = nla_reserve_64bit(skb, IFLA_STATS_LINK_64,
					 sizeof(struct rtnl_link_stats64),
					 IFLA_STATS_UNSPEC);
		if (!attr)
			goto nla_put_failure;

		sp = nla_data(attr);
		dev_get_stats(dev, sp);
	}

	if (stats_attr_valid(filter_mask, IFLA_STATS_LINK_XSTATS, *idxattr)) {
		const struct rtnl_link_ops *ops = dev->rtnl_link_ops;

		if (ops && ops->fill_linkxstats) {
			*idxattr = IFLA_STATS_LINK_XSTATS;
			attr = nla_nest_start(skb,
					      IFLA_STATS_LINK_XSTATS);
			if (!attr)
				goto nla_put_failure;

			err = ops->fill_linkxstats(skb, dev, prividx, *idxattr);
			nla_nest_end(skb, attr);
			if (err)
				goto nla_put_failure;
			*idxattr = 0;
		}
	}

	if (stats_attr_valid(filter_mask, IFLA_STATS_LINK_XSTATS_SLAVE,
			     *idxattr)) {
		const struct rtnl_link_ops *ops = NULL;
		const struct net_device *master;

		master = netdev_master_upper_dev_get(dev);
		if (master)
			ops = master->rtnl_link_ops;
		if (ops && ops->fill_linkxstats) {
			*idxattr = IFLA_STATS_LINK_XSTATS_SLAVE;
			attr = nla_nest_start(skb,
					      IFLA_STATS_LINK_XSTATS_SLAVE);
			if (!attr)
				goto nla_put_failure;

			err = ops->fill_linkxstats(skb, dev, prividx, *idxattr);
			nla_nest_end(skb, attr);
			if (err)
				goto nla_put_failure;
			*idxattr = 0;
		}
	}

	if (stats_attr_valid(filter_mask, IFLA_STATS_LINK_OFFLOAD_XSTATS,
			     *idxattr)) {
		*idxattr = IFLA_STATS_LINK_OFFLOAD_XSTATS;
		attr = nla_nest_start(skb, IFLA_STATS_LINK_OFFLOAD_XSTATS);
		if (!attr)
			goto nla_put_failure;

		err = rtnl_get_offload_stats(skb, dev, prividx);
		if (err == -ENODATA)
			nla_nest_cancel(skb, attr);
		else
			nla_nest_end(skb, attr);

		if (err && err != -ENODATA)
			goto nla_put_failure;
		*idxattr = 0;
	}

	if (stats_attr_valid(filter_mask, IFLA_STATS_AF_SPEC, *idxattr)) {
		struct rtnl_af_ops *af_ops;

		*idxattr = IFLA_STATS_AF_SPEC;
		attr = nla_nest_start(skb, IFLA_STATS_AF_SPEC);
		if (!attr)
			goto nla_put_failure;

		list_for_each_entry(af_ops, &rtnl_af_ops, list) {
			if (af_ops->fill_stats_af) {
				struct nlattr *af;
				int err;

				af = nla_nest_start(skb, af_ops->family);
				if (!af)
					goto nla_put_failure;

				err = af_ops->fill_stats_af(skb, dev);

				if (err == -ENODATA)
					nla_nest_cancel(skb, af);
				else if (err < 0)
					goto nla_put_failure;

				nla_nest_end(skb, af);
			}
		}

		nla_nest_end(skb, attr);

		*idxattr = 0;
	}

	nlmsg_end(skb, nlh);

	return 0;

nla_put_failure:
	/* not a multi message or no progress mean a real error */
	if (!(flags & NLM_F_MULTI) || s_prividx == *prividx)
		nlmsg_cancel(skb, nlh);
	else
		nlmsg_end(skb, nlh);

	return -EMSGSIZE;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Nikolay Aleksandrov
246
37.56%
3
42.86%
Roopa Prabhu
177
27.02%
1
14.29%
Robert Shearman
140
21.37%
1
14.29%
Nogah Frankel
89
13.59%
1
14.29%
Nicolas Dichtel
3
0.46%
1
14.29%
Total
655
100.00%
7
100.00%



static size_t if_nlmsg_stats_size(const struct net_device *dev,
				  u32 filter_mask)
{
	size_t size = 0;

	if (stats_attr_valid(filter_mask, IFLA_STATS_LINK_64, 0))
		size += nla_total_size_64bit(sizeof(struct rtnl_link_stats64));

	if (stats_attr_valid(filter_mask, IFLA_STATS_LINK_XSTATS, 0)) {
		const struct rtnl_link_ops *ops = dev->rtnl_link_ops;
		int attr = IFLA_STATS_LINK_XSTATS;

		if (ops && ops->get_linkxstats_size) {
			size += nla_total_size(ops->get_linkxstats_size(dev,
									attr));
			/* for IFLA_STATS_LINK_XSTATS */
			size += nla_total_size(0);
		}
	}

	if (stats_attr_valid(filter_mask, IFLA_STATS_LINK_XSTATS_SLAVE, 0)) {
		struct net_device *_dev = (struct net_device *)dev;
		const struct rtnl_link_ops *ops = NULL;
		const struct net_device *master;

		/* netdev_master_upper_dev_get can't take const */
		master = netdev_master_upper_dev_get(_dev);
		if (master)
			ops = master->rtnl_link_ops;
		if (ops && ops->get_linkxstats_size) {
			int attr = IFLA_STATS_LINK_XSTATS_SLAVE;

			size += nla_total_size(ops->get_linkxstats_size(dev,
									attr));
			/* for IFLA_STATS_LINK_XSTATS_SLAVE */
			size += nla_total_size(0);
		}
	}

	if (stats_attr_valid(filter_mask, IFLA_STATS_LINK_OFFLOAD_XSTATS, 0))
		size += rtnl_get_offload_stats_size(dev);

	if (stats_attr_valid(filter_mask, IFLA_STATS_AF_SPEC, 0)) {
		struct rtnl_af_ops *af_ops;

		/* for IFLA_STATS_AF_SPEC */
		size += nla_total_size(0);

		list_for_each_entry(af_ops, &rtnl_af_ops, list) {
			if (af_ops->get_stats_af_size) {
				size += nla_total_size(
					af_ops->get_stats_af_size(dev));

				/* for AF_* */
				size += nla_total_size(0);
			}
		}
	}

	return size;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Nikolay Aleksandrov
159
56.58%
3
50.00%
Robert Shearman
64
22.78%
1
16.67%
Roopa Prabhu
40
14.23%
1
16.67%
Nogah Frankel
18
6.41%
1
16.67%
Total
281
100.00%
6
100.00%



static int rtnl_stats_get(struct sk_buff *skb, struct nlmsghdr *nlh)
{
	struct net *net = sock_net(skb->sk);
	struct net_device *dev = NULL;
	int idxattr = 0, prividx = 0;
	struct if_stats_msg *ifsm;
	struct sk_buff *nskb;
	u32 filter_mask;
	int err;

	if (nlmsg_len(nlh) < sizeof(*ifsm))
		return -EINVAL;

	ifsm = nlmsg_data(nlh);
	if (ifsm->ifindex > 0)
		dev = __dev_get_by_index(net, ifsm->ifindex);
	else
		return -EINVAL;

	if (!dev)
		return -ENODEV;

	filter_mask = ifsm->filter_mask;
	if (!filter_mask)
		return -EINVAL;

	nskb = nlmsg_new(if_nlmsg_stats_size(dev, filter_mask), GFP_KERNEL);
	if (!nskb)
		return -ENOBUFS;

	err = rtnl_fill_statsinfo(nskb, dev, RTM_NEWSTATS,
				  NETLINK_CB(skb).portid, nlh->nlmsg_seq, 0,
				  0, filter_mask, &idxattr, &prividx);
	if (err < 0) {
		/* -EMSGSIZE implies BUG in if_nlmsg_stats_size */
		WARN_ON(err == -EMSGSIZE);
		kfree_skb(nskb);
	} else {
		err = rtnl_unicast(nskb, net, NETLINK_CB(skb).portid);
	}

	return err;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Roopa Prabhu
196
84.12%
1
33.33%
Nikolay Aleksandrov
20
8.58%
1
33.33%
Mathias Krause
17
7.30%
1
33.33%
Total
233
100.00%
3
100.00%



static int rtnl_stats_dump(struct sk_buff *skb, struct netlink_callback *cb)
{
	int h, s_h, err, s_idx, s_idxattr, s_prividx;
	struct net *net = sock_net(skb->sk);
	unsigned int flags = NLM_F_MULTI;
	struct if_stats_msg *ifsm;
	struct hlist_head *head;
	struct net_device *dev;
	u32 filter_mask = 0;
	int idx = 0;

	s_h = cb->args[0];
	s_idx = cb->args[1];
	s_idxattr = cb->args[2];
	s_prividx = cb->args[3];

	cb->seq = net->dev_base_seq;

	if (nlmsg_len(cb->nlh) < sizeof(*ifsm))
		return -EINVAL;

	ifsm = nlmsg_data(cb->nlh);
	filter_mask = ifsm->filter_mask;
	if (!filter_mask)
		return -EINVAL;

	for (h = s_h; h < NETDEV_HASHENTRIES; h++, s_idx = 0) {
		idx = 0;
		head = &net->dev_index_head[h];
		hlist_for_each_entry(dev, head, index_hlist) {
			if (idx < s_idx)
				goto cont;
			err = rtnl_fill_statsinfo(skb, dev, RTM_NEWSTATS,
						  NETLINK_CB(cb->skb).portid,
						  cb->nlh->nlmsg_seq, 0,
						  flags, filter_mask,
						  &s_idxattr, &s_prividx);
			/* If we ran out of room on the first message,
                         * we're in trouble
                         */
			WARN_ON((err == -EMSGSIZE) && (skb->len == 0));

			if (err < 0)
				goto out;
			s_prividx = 0;
			s_idxattr = 0;
			nl_dump_check_consistent(cb, nlmsg_hdr(skb));
cont:
			idx++;
		}
	}
out:
	cb->args[3] = s_prividx;
	cb->args[2] = s_idxattr;
	cb->args[1] = idx;
	cb->args[0] = h;

	return skb->len;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Roopa Prabhu
249
72.59%
1
33.33%
Nikolay Aleksandrov
75
21.87%
1
33.33%
Mathias Krause
19
5.54%
1
33.33%
Total
343
100.00%
3
100.00%

/* Process one rtnetlink message. */



static int rtnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
{
	struct net *net = sock_net(skb->sk);
	rtnl_doit_func doit;
	int kind;
	int family;
	int type;
	int err;

	type = nlh->nlmsg_type;
	if (type > RTM_MAX)
		return -EOPNOTSUPP;

	type -= RTM_BASE;

	/* All the messages must have at least 1 byte length */
	if (nlmsg_len(nlh) < sizeof(struct rtgenmsg))
		return 0;

	family = ((struct rtgenmsg *)nlmsg_data(nlh))->rtgen_family;
	kind = type&3;

	if (kind != 2 && !netlink_net_capable(skb, CAP_NET_ADMIN))
		return -EPERM;

	if (kind == 2 && nlh->nlmsg_flags&NLM_F_DUMP) {
		struct sock *rtnl;
		rtnl_dumpit_func dumpit;
		rtnl_calcit_func calcit;
		u16 min_dump_alloc = 0;

		dumpit = rtnl_get_dumpit(family, type);
		if (dumpit == NULL)
			return -EOPNOTSUPP;
		calcit = rtnl_get_calcit(family, type);
		if (calcit)
			min_dump_alloc = calcit(skb, nlh);

		__rtnl_unlock();
		rtnl = net->rtnl;
		{
			struct netlink_dump_control c = {
				.dump		= dumpit,
				.min_dump_alloc	= min_dump_alloc,
                        };
			err = netlink_dump_start(rtnl, skb, nlh, &c);
		}
		rtnl_lock();
		return err;
	}

	doit = rtnl_get_doit(family, type);
	if (doit == NULL)
		return -EOPNOTSUPP;

	return doit(skb, nlh);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
John Fastabend
191
72.08%
1
9.09%
Linus Torvalds (pre-git)
29
10.94%
2
18.18%
Pablo Neira Ayuso
20
7.55%
1
9.09%
Thomas Graf
10
3.77%
3
27.27%
Eric Dumazet
8
3.02%
1
9.09%
Hong Zhi Guo
4
1.51%
1
9.09%
Eric W. Biedermann
3
1.13%
2
18.18%
Total
265
100.00%
11
100.00%



static void rtnetlink_rcv(struct sk_buff *skb)
{
	rtnl_lock();
	netlink_rcv_skb(skb, &rtnetlink_rcv_msg);
	rtnl_unlock();
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
12
48.00%
1
16.67%
Denis V. Lunev
7
28.00%
2
33.33%
Herbert Xu
2
8.00%
1
16.67%
Thomas Graf
2
8.00%
1
16.67%
David S. Miller
2
8.00%
1
16.67%
Total
25
100.00%
6
100.00%



static int rtnetlink_event(struct notifier_block *this, unsigned long event, void *ptr)
{
	struct net_device *dev = netdev_notifier_info_to_dev(ptr);

	switch (event) {
	case NETDEV_UP:
	case NETDEV_DOWN:
	case NETDEV_PRE_UP:
	case NETDEV_POST_INIT:
	case NETDEV_REGISTER:
	case NETDEV_CHANGE:
	case NETDEV_PRE_TYPE_CHANGE:
	case NETDEV_GOING_DOWN:
	case NETDEV_UNREGISTER:
	case NETDEV_UNREGISTER_FINAL:
	case NETDEV_RELEASE:
	case NETDEV_JOIN:
	case NETDEV_BONDING_INFO:
		break;
	default:
		rtmsg_ifinfo(RTM_NEWLINK, dev, 0, GFP_KERNEL);
		break;
	}
	return NOTIFY_DONE;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
59
64.84%
3
25.00%
Patrick McHardy
9
9.89%
3
25.00%
Eric W. Biedermann
8
8.79%
1
8.33%
Américo Wang
6
6.59%
1
8.33%
Moni Shoua
3
3.30%
1
8.33%
Jiri Pirko
3
3.30%
1
8.33%
Alexei Starovoitov
2
2.20%
1
8.33%
Eric Dumazet
1
1.10%
1
8.33%
Total
91
100.00%
12
100.00%


static struct notifier_block rtnetlink_dev_notifier = {
	.notifier_call	= rtnetlink_event,
};




static int __net_init rtnetlink_net_init(struct net *net)
{
	struct sock *sk;
	struct netlink_kernel_cfg cfg = {
		.groups		= RTNLGRP_MAX,
		.input		= rtnetlink_rcv,
		.cb_mutex	= &rtnl_mutex,
		.flags		= NL_CFG_F_NONROOT_RECV,
        };

	sk = netlink_kernel_create(net, NETLINK_ROUTE, &cfg);
	if (!sk)
		return -ENOMEM;
	net->rtnl = sk;
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Denis V. Lunev
44
59.46%
1
20.00%
Pablo Neira Ayuso
28
37.84%
2
40.00%
Eric Dumazet
1
1.35%
1
20.00%
Alexey Dobriyan
1
1.35%
1
20.00%
Total
74
100.00%
5
100.00%



static void __net_exit rtnetlink_net_exit(struct net *net)
{
	netlink_kernel_release(net->rtnl);
	net->rtnl = NULL;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Denis V. Lunev
24
96.00%
3
75.00%
Alexey Dobriyan
1
4.00%
1
25.00%
Total
25
100.00%
4
100.00%


static struct pernet_operations rtnetlink_net_ops = {
	.init = rtnetlink_net_init,
	.exit = rtnetlink_net_exit,
};



void __init rtnetlink_init(void)
{
	if (register_pernet_subsys(&rtnetlink_net_ops))
		panic("rtnetlink_init: cannot initialize rtnetlink\n");

	register_netdevice_notifier(&rtnetlink_dev_notifier);

	rtnl_register(PF_UNSPEC, RTM_GETLINK, rtnl_getlink,
		      rtnl_dump_ifinfo, rtnl_calcit);
	rtnl_register(PF_UNSPEC, RTM_SETLINK, rtnl_setlink, NULL, NULL);
	rtnl_register(PF_UNSPEC, RTM_NEWLINK, rtnl_newlink, NULL, NULL);
	rtnl_register(PF_UNSPEC, RTM_DELLINK, rtnl_dellink, NULL, NULL);

	rtnl_register(PF_UNSPEC, RTM_GETADDR, NULL, rtnl_dump_all, NULL);
	rtnl_register(PF_UNSPEC, RTM_GETROUTE, NULL, rtnl_dump_all, NULL);

	rtnl_register(PF_BRIDGE, RTM_NEWNEIGH, rtnl_fdb_add, NULL, NULL);
	rtnl_register(PF_BRIDGE, RTM_DELNEIGH, rtnl_fdb_del, NULL, NULL);
	rtnl_register(PF_BRIDGE, RTM_GETNEIGH, NULL, rtnl_fdb_dump, NULL);

	rtnl_register(PF_BRIDGE, RTM_GETLINK, NULL, rtnl_bridge_getlink, NULL);
	rtnl_register(PF_BRIDGE, RTM_DELLINK, rtnl_bridge_dellink, NULL, NULL);
	rtnl_register(PF_BRIDGE, RTM_SETLINK, rtnl_bridge_setlink, NULL, NULL);

	rtnl_register(PF_UNSPEC, RTM_GETSTATS, rtnl_stats_get, rtnl_stats_dump,
		      NULL);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
John Fastabend
65
33.16%
2
14.29%
Thomas Graf
41
20.92%
2
14.29%
Linus Torvalds (pre-git)
25
12.76%
4
28.57%
Patrick McHardy
22
11.22%
1
7.14%
Vlad Yasevich
13
6.63%
1
7.14%
Roopa Prabhu
13
6.63%
1
7.14%
Greg Rose
12
6.12%
1
7.14%
Denis V. Lunev
4
2.04%
1
7.14%
Eric W. Biedermann
1
0.51%
1
7.14%
Total
196
100.00%
14
100.00%

Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
John Fastabend
2375
11.53%
9
2.78%
Patrick McHardy
2050
9.95%
18
5.56%
Thomas Graf
2031
9.86%
34
10.49%
Jiri Pirko
1818
8.82%
17
5.25%
Scott Feldman
1186
5.76%
7
2.16%
Roopa Prabhu
937
4.55%
8
2.47%
Hannes Frederic Sowa
920
4.47%
1
0.31%
Linus Torvalds (pre-git)
731
3.55%
13
4.01%
Vlad Yasevich
702
3.41%
4
1.23%
Nikolay Aleksandrov
535
2.60%
3
0.93%
Nogah Frankel
450
2.18%
1
0.31%
Nicolas Dichtel
400
1.94%
20
6.17%
Eric W. Biedermann
399
1.94%
14
4.32%
Daniel Borkmann
397
1.93%
6
1.85%
David Ahern
380
1.84%
2
0.62%
Greg Rose
378
1.83%
4
1.23%
Eric Dumazet
358
1.74%
17
5.25%
Brenden Blanco
326
1.58%
2
0.62%
Moshe Shemesh
321
1.56%
1
0.31%
Chris Wright
283
1.37%
1
0.31%
Pavel Emelyanov
250
1.21%
6
1.85%
Jamal Hadi Salim
235
1.14%
3
0.93%
Robert Shearman
204
0.99%
1
0.31%
Eli Cohen
204
0.99%
1
0.31%
Américo Wang
184
0.89%
3
0.93%
Denis V. Lunev
167
0.81%
5
1.54%
Stephen Hemminger
129
0.63%
8
2.47%
Eran Ben Elisha
123
0.60%
1
0.31%
Stefan Rompf
120
0.58%
1
0.31%
Cong Wang
120
0.58%
3
0.93%
Mitch A Williams
119
0.58%
2
0.62%
David S. Miller
113
0.55%
11
3.40%
Sucheta Chakraborty
110
0.53%
1
0.31%
Vlad Dogaru
105
0.51%
2
0.62%
Mahesh Bandewar
98
0.48%
1
0.31%
Hiroshi Shimamoto
98
0.48%
1
0.31%
Jean Tourrilhes
89
0.43%
1
0.31%
Vladislav Zolotarov
73
0.35%
1
0.31%
Hubert Sokolowski
72
0.35%
3
0.93%
Michal Schmidt
60
0.29%
1
0.31%
Anuradha Karuppiah
59
0.29%
1
0.31%
Mathias Krause
56
0.27%
3
0.93%
David Gibson
52
0.25%
2
0.62%
Jiri Benc
51
0.25%
2
0.62%
Pablo Neira Ayuso
50
0.24%
4
1.23%
Rony Efraim
49
0.24%
1
0.31%
Roland Dreier
49
0.24%
2
0.62%
Jason (Hui) Wang
45
0.22%
1
0.31%
Sabrina Dubroca
45
0.22%
3
0.93%
Li Wei
36
0.17%
1
0.31%
Theuns Verwoerd
31
0.15%
1
0.31%
David Decotigny
28
0.14%
1
0.31%
Kangjie Lu
26
0.13%
1
0.31%
Johannes Berg
25
0.12%
4
1.23%
Paul E. McKenney
24
0.12%
1
0.31%
Or Gerlitz
22
0.11%
2
0.62%
Jan Engelhardt
21
0.10%
2
0.62%
Ben Hutchings
21
0.10%
2
0.62%
MINOURA Makoto / 箕浦 真
21
0.10%
1
0.31%
Tom Gundersen
20
0.10%
2
0.62%
Hideaki Yoshifuji / 吉藤英明
20
0.10%
2
0.62%
Peter Zijlstra
20
0.10%
1
0.31%
Ben Greear
19
0.09%
1
0.31%
Dan Carpenter
15
0.07%
2
0.62%
Doug Ledford
13
0.06%
1
0.31%
Arnd Bergmann
10
0.05%
1
0.31%
Tobias Klauser
9
0.04%
2
0.62%
Christoph Hellwig
8
0.04%
1
0.31%
Zhang Shengju
8
0.04%
3
0.93%
Jarod Wilson
8
0.04%
1
0.31%
Alexei Starovoitov
7
0.03%
1
0.31%
David Howells
7
0.03%
1
0.31%
Arad, Ronen
7
0.03%
1
0.31%
Arnaldo Carvalho de Melo
7
0.03%
2
0.62%
Phil Sutter
6
0.03%
1
0.31%
Linus Torvalds
6
0.03%
3
0.93%
Ido Schimmel
5
0.02%
1
0.31%
Alexey Kuznetsov
5
0.02%
3
0.93%
Hong Zhi Guo
4
0.02%
1
0.31%
Eric Lemoine
3
0.01%
1
0.31%
Herbert Xu
3
0.01%
2
0.62%
Moni Shoua
3
0.01%
1
0.31%
Eric Sesterhenn / Snakebyte
3
0.01%
1
0.31%
Fernando Luis Vázquez Cao
3
0.01%
1
0.31%
James Morris
3
0.01%
1
0.31%
Sridhar Samudrala
3
0.01%
1
0.31%
Alexander Duyck
2
0.01%
1
0.31%
Sasha Levin
2
0.01%
1
0.31%
Joe Perches
2
0.01%
1
0.31%
Sowmini Varadhan
2
0.01%
1
0.31%
Adrian Bunk
2
0.01%
1
0.31%
Alexey Dobriyan
2
0.01%
1
0.31%
Michael Riesch
1
0.00%
1
0.31%
Kurt Van Dijck
1
0.00%
1
0.31%
Lucas De Marchi
1
0.00%
1
0.31%
Asbjörn Sloth Tönnesen
1
0.00%
1
0.31%
Wei Yongjun
1
0.00%
1
0.31%
Yaowei Bai
1
0.00%
1
0.31%
Total
20604
100.00%
324
100.00%
Directory: net/core

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