vxlan.c File Reference

VXLAN. More...

Include dependency graph for vxlan.c:

Go to the source code of this file.

Macros
#define	foreach_copy_field
#define	foreach_copy_ipv4
#define	foreach_copy_ipv6

Functions
static u8 *	format_decap_next (u8 *s, va_list *args)
u8 *	format_vxlan_tunnel (u8 *s, va_list *args)
static u8 *	format_vxlan_name (u8 *s, va_list *args)
static uword	dummy_interface_tx (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
static clib_error_t *	vxlan_interface_admin_up_down (vnet_main_t *vnm, u32 hw_if_index, u32 flags)
	VNET_DEVICE_CLASS (vxlan_device_class, static)
static uword	dummy_set_rewrite (vnet_main_t *vnm, u32 sw_if_index, u32 l3_type, void *dst_address, void *rewrite, uword max_rewrite_bytes)
static u8 *	format_vxlan_header_with_length (u8 *s, va_list *args)
	VNET_HW_INTERFACE_CLASS (vxlan_hw_class)
static int	vxlan4_rewrite (vxlan_tunnel_t *t)
static int	vxlan6_rewrite (vxlan_tunnel_t *t)
int	vnet_vxlan_add_del_tunnel (vnet_vxlan_add_del_tunnel_args_t *a, u32 *sw_if_indexp)
static u32	fib4_index_from_fib_id (u32 fib_id)
static u32	fib6_index_from_fib_id (u32 fib_id)
static uword	unformat_decap_next (unformat_input_t *input, va_list *args)
static clib_error_t *	vxlan_add_del_tunnel_command_fn (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
static clib_error_t *	show_vxlan_tunnel_command_fn (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
clib_error_t *	vxlan_init (vlib_main_t *vm)

Variables
vxlan_main_t	vxlan_main
static vlib_cli_command_t	create_vxlan_tunnel_command
	(constructor) VLIB_CLI_COMMAND (create_vxlan_tunnel_command) More...
static vlib_cli_command_t	show_vxlan_tunnel_command
	(constructor) VLIB_CLI_COMMAND (show_vxlan_tunnel_command) More...

Detailed Description

VXLAN.

VXLAN provides the features needed to allow L2 bridge domains (BDs) to span multiple servers. This is done by building an L2 overlay on top of an L3 network underlay using VXLAN tunnels.

This makes it possible for servers to be co-located in the same data center or be separated geographically as long as they are reachable through the underlay L3 network.

You can refer to this kind of L2 overlay bridge domain as a VXLAN (Virtual eXtensible VLAN) segment.

Definition in file vxlan.c.

Macro Definition Documentation

#define foreach_copy_field

Value:

_(vni)                                          \
_(encap_fib_index)                              \
_(decap_next_index)

Definition at line 129 of file vxlan.c.

#define foreach_copy_ipv4

Value:

{                     \
  _(src.ip4.as_u32)                             \
  _(dst.ip4.as_u32)                             \
}

Definition at line 134 of file vxlan.c.

#define foreach_copy_ipv6

Value:

{                     \
  _(src.ip6.as_u64[0])                          \
  _(src.ip6.as_u64[1])                          \
  _(dst.ip6.as_u64[0])                          \
  _(dst.ip6.as_u64[1])                          \
}

Definition at line 139 of file vxlan.c.

Function Documentation

static uword dummy_interface_tx ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame  )

static

Definition at line 79 of file vxlan.c.

Here is the caller graph for this function:

static uword dummy_set_rewrite ( vnet_main_t *  vnm, u32  sw_if_index, u32  l3_type, void *  dst_address, void *  rewrite, uword  max_rewrite_bytes  )

static

Definition at line 106 of file vxlan.c.

Here is the caller graph for this function:

static u32 fib4_index_from_fib_id ( u32  fib_id )

static

Definition at line 395 of file vxlan.c.

Here is the caller graph for this function:

static u32 fib6_index_from_fib_id ( u32  fib_id )

static

Definition at line 407 of file vxlan.c.

Here is the caller graph for this function:

static u8* format_decap_next ( u8 *  s, va_list *  args  )

static

Definition at line 37 of file vxlan.c.

Here is the call graph for this function:

Here is the caller graph for this function:

static u8* format_vxlan_header_with_length ( u8 *  s, va_list *  args  )

static

Definition at line 116 of file vxlan.c.

Here is the call graph for this function:

static u8* format_vxlan_name ( u8 *  s, va_list *  args  )

static

Definition at line 73 of file vxlan.c.

Here is the call graph for this function:

Here is the caller graph for this function:

u8* format_vxlan_tunnel	(	u8 *	s,
		va_list *	args
	)

Definition at line 57 of file vxlan.c.

Here is the call graph for this function:

static clib_error_t* show_vxlan_tunnel_command_fn ( vlib_main_t *  vm, unformat_input_t *  input, vlib_cli_command_t *  cmd  )

static

Definition at line 599 of file vxlan.c.

Here is the call graph for this function:

static uword unformat_decap_next ( unformat_input_t *  input, va_list *  args  )

static

Definition at line 419 of file vxlan.c.

Here is the call graph for this function:

Here is the caller graph for this function:

VNET_DEVICE_CLASS	(	vxlan_device_class	,
		static
	)

Here is the caller graph for this function:

VNET_HW_INTERFACE_CLASS

(

vxlan_hw_class

)

Here is the caller graph for this function:

int vnet_vxlan_add_del_tunnel	(	vnet_vxlan_add_del_tunnel_args_t *	a,
		u32 *	sw_if_indexp
	)

Definition at line 213 of file vxlan.c.

Here is the call graph for this function:

Here is the caller graph for this function:

static int vxlan4_rewrite ( vxlan_tunnel_t *  t )

static

Definition at line 146 of file vxlan.c.

Here is the call graph for this function:

Here is the caller graph for this function:

static int vxlan6_rewrite ( vxlan_tunnel_t *  t )

static

Definition at line 179 of file vxlan.c.

Here is the call graph for this function:

Here is the caller graph for this function:

static clib_error_t* vxlan_add_del_tunnel_command_fn ( vlib_main_t *  vm, unformat_input_t *  input, vlib_cli_command_t *  cmd  )

static

Definition at line 440 of file vxlan.c.

Here is the call graph for this function:

clib_error_t* vxlan_init

(

vlib_main_t *

vm

)

Definition at line 635 of file vxlan.c.

Here is the call graph for this function:

static clib_error_t* vxlan_interface_admin_up_down ( vnet_main_t *  vnm, u32  hw_if_index, u32  flags  )

static

Definition at line 88 of file vxlan.c.

Here is the call graph for this function:

Variable Documentation

vlib_cli_command_t create_vxlan_tunnel_command

static

Initial value:

= {
  .path = "create vxlan tunnel",
  .short_help = 
  "create vxlan tunnel src <local-vtep-addr> dst <remote-vtep-addr> vni <nn>" 
  " [encap-vrf-id <nn>] [decap-next [l2|ip4|ip6]] [del]",
  .function = vxlan_add_del_tunnel_command_fn,
}

(constructor) VLIB_CLI_COMMAND (create_vxlan_tunnel_command)

Definition at line 589 of file vxlan.c.

vlib_cli_command_t show_vxlan_tunnel_command

static

Initial value:

= {
    .path = "show vxlan tunnel",
    .short_help = "show vxlan tunnel",
    .function = show_vxlan_tunnel_command_fn,
}

(constructor) VLIB_CLI_COMMAND (show_vxlan_tunnel_command)

Definition at line 627 of file vxlan.c.

vxlan_main_t vxlan_main

Definition at line 35 of file vxlan.c.