VETH

Virtual Ethernet. More...

VETH Object
struct rtnl_link *	rtnl_link_veth_alloc (void)
	Allocate link object of type veth. More...
struct rtnl_link *	rtnl_link_veth_get_peer (struct rtnl_link *link)
	Get the peer link of a veth link. More...
void	rtnl_link_veth_release (struct rtnl_link *link)
	Release a veth link and its peer. More...
int	rtnl_link_is_veth (struct rtnl_link *link)
	Check if link is a veth link. More...
int	rtnl_link_veth_add (struct nl_sock *sock, const char *name, const char *peer_name, pid_t pid)
	Create a new kernel veth device. More...

Detailed Description

Virtual Ethernet.

Link Type Name: "veth"

VETH Documentation (Netlink Routing Development Guide)

Function Documentation

struct rtnl_link* rtnl_link_veth_alloc ( void  )

read

Allocate link object of type veth.

Returns

Allocated link object or NULL.

Definition at line 173 of file veth.c.

References rtnl_link_alloc(), rtnl_link_put(), and rtnl_link_set_type().

Referenced by rtnl_link_veth_add().

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struct rtnl_link* rtnl_link_veth_get_peer ( struct rtnl_link *  link )

read

Get the peer link of a veth link.

Returns

the peer link object.

Definition at line 206 of file veth.c.

Referenced by rtnl_link_veth_add(), and rtnl_link_veth_release().

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void rtnl_link_veth_release

(

struct rtnl_link *

link

)

Release a veth link and its peer.

Definition at line 216 of file veth.c.

References rtnl_link_put(), and rtnl_link_veth_get_peer().

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int rtnl_link_is_veth

(

struct rtnl_link *

link

)

Check if link is a veth link.

Parameters

link	Link object

Returns

True if link is a veth link, otherwise false is returned.

Definition at line 229 of file veth.c.

int rtnl_link_veth_add	(	struct nl_sock *	sock,
		const char *	name,
		const char *	peer_name,
		pid_t	pid
	)

Create a new kernel veth device.

Parameters

sock	netlink socket
name	name of the veth device or NULL
peer_name	name of its peer or NULL
pid	pid of the process in the new netns

Creates a new veth device pair in the kernel and move the peer to the network namespace where the process is. If no name is provided, the kernel will automatically pick a name of the form "veth%d" (e.g. veth0, veth1, etc.)

Returns

0 on success or a negative error code

Definition at line 248 of file veth.c.

References rtnl_link_add(), rtnl_link_put(), rtnl_link_set_name(), rtnl_link_veth_alloc(), and rtnl_link_veth_get_peer().

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