Common utility functions for IPv4 and IPv6 VXLAN GPE tunnels. More...

Include dependency graph for vxlan_gpe.c:

Macros
#define	foreach_gpe_copy_field

#define	foreach_copy_ipv4

#define	foreach_copy_ipv6

Functions
u8 *	format_vxlan_gpe_tunnel (u8 s, va_list args)
	Tracing function for VXLAN GPE tunnel packets. More...

static u8 *	format_vxlan_gpe_name (u8 s, va_list args)
	Naming for VXLAN GPE tunnel. More...

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

static clib_error_t *	vxlan_gpe_interface_admin_up_down (vnet_main_t *vnm, u32 hw_if_index, u32 flags)
	CLI function for VXLAN GPE admin up/down. More...

	VNET_DEVICE_CLASS (vxlan_gpe_device_class, static)

static u8 *	format_vxlan_gpe_header_with_length (u8 s, va_list args)
	Formatting function for tracing VXLAN GPE with length. More...

	VNET_HW_INTERFACE_CLASS (vxlan_gpe_hw_class)

static void	vxlan_gpe_tunnel_restack_dpo (vxlan_gpe_tunnel_t *t)

static vxlan_gpe_tunnel_t *	vxlan_gpe_tunnel_from_fib_node (fib_node_t *node)

static fib_node_back_walk_rc_t	vxlan_gpe_tunnel_back_walk (fib_node_t node, fib_node_back_walk_ctx_t ctx)
	Function definition to backwalk a FIB node - Here we will restack the new dpo of VXLAN_GPE DIP to encap node. More...

static fib_node_t *	vxlan_gpe_tunnel_fib_node_get (fib_node_index_t index)
	Function definition to get a FIB node from its index. More...

static void	vxlan_gpe_tunnel_last_lock_gone (fib_node_t *node)
	Function definition to inform the FIB node that its last lock has gone. More...

int	vxlan4_gpe_rewrite (vxlan_gpe_tunnel_t *t, u32 extension_size, u8 protocol_override, uword encap_next_node)
	Calculate IPv4 VXLAN GPE rewrite header. More...

int	vxlan6_gpe_rewrite (vxlan_gpe_tunnel_t *t, u32 extension_size, u8 protocol_override, uword encap_next_node)
	Calculate IPv6 VXLAN GPE rewrite header. More...

static void	hash_set_key_copy (uword *h, void key, uword v)

static void	hash_unset_key_free (uword *h, void key)

static uword	vtep_addr_ref (ip46_address_t *ip)

static uword	vtep_addr_unref (ip46_address_t *ip)

typedef	CLIB_PACKED (union{struct{fib_node_index_t mfib_entry_index;adj_index_t mcast_adj_index;};u64 as_u64;})

static void	mcast_shared_add (ip46_address_t *remote, fib_node_index_t mfei, adj_index_t ai)

static void	mcast_shared_remove (ip46_address_t *remote)

static fib_protocol_t	fib_ip_proto (bool is_ip6)

int	vnet_vxlan_gpe_add_del_tunnel (vnet_vxlan_gpe_add_del_tunnel_args_t a, u32 sw_if_indexp)
	Add or Del a VXLAN GPE tunnel. More...

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

static clib_error_t *	show_vxlan_gpe_tunnel_command_fn (vlib_main_t vm, unformat_input_t input, vlib_cli_command_t *cmd)
	CLI function for showing VXLAN GPE tunnels. More...

void	vnet_int_vxlan_gpe_bypass_mode (u32 sw_if_index, u8 is_ip6, u8 is_enable)

static clib_error_t *	set_ip_vxlan_gpe_bypass (u32 is_ip6, unformat_input_t input, vlib_cli_command_t cmd)

static clib_error_t *	set_ip4_vxlan_gpe_bypass (vlib_main_t vm, unformat_input_t input, vlib_cli_command_t *cmd)

static clib_error_t *	set_ip6_vxlan_gpe_bypass (vlib_main_t vm, unformat_input_t input, vlib_cli_command_t *cmd)

clib_error_t *	vxlan_gpe_init (vlib_main_t *vm)
	Feature init function for VXLAN GPE. More...

Variables
vxlan_gpe_main_t	vxlan_gpe_main

static const fib_node_vft_t	vxlan_gpe_vft

static vlib_cli_command_t	create_vxlan_gpe_tunnel_command
	(constructor) VLIB_CLI_COMMAND (create_vxlan_gpe_tunnel_command) More...

static vlib_cli_command_t	show_vxlan_gpe_tunnel_command
	(constructor) VLIB_CLI_COMMAND (show_vxlan_gpe_tunnel_command) More...

static vlib_cli_command_t	set_interface_ip_vxlan_gpe_bypass_command
	(constructor) VLIB_CLI_COMMAND (set_interface_ip_vxlan_gpe_bypass_command) More...

static vlib_cli_command_t	set_interface_ip6_vxlan_gpe_bypass_command
	(constructor) VLIB_CLI_COMMAND (set_interface_ip6_vxlan_gpe_bypass_command) More...

Detailed Description

Common utility functions for IPv4 and IPv6 VXLAN GPE tunnels.

VXLAN-GPE.

VXLAN-GPE 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-GPE 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-GPE segment.

Definition in file vxlan_gpe.c.

Macro Definition Documentation

#define foreach_copy_ipv4

Value:

{                     \
  _(local.ip4.as_u32)                           \
  _(remote.ip4.as_u32)                          \
}

Definition at line 249 of file vxlan_gpe.c.

#define foreach_copy_ipv6

Value:

{                     \
  _(local.ip6.as_u64[0])                        \
  _(local.ip6.as_u64[1])                        \
  _(remote.ip6.as_u64[0])                       \
  _(remote.ip6.as_u64[1])                       \
}

Definition at line 254 of file vxlan_gpe.c.

#define foreach_gpe_copy_field

Value:

_(vni)                                          \
_(protocol)                                     \
_(mcast_sw_if_index)                            \
_(encap_fib_index)                              \
_(decap_fib_index)

Definition at line 242 of file vxlan_gpe.c.

Function Documentation

typedef CLIB_PACKED ( union{struct{fib_node_index_t mfib_entry_index;adj_index_t mcast_adj_index;};u64 as_u64;} )

Definition at line 422 of file vxlan_gpe.c.

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

static

Definition at line 111 of file vxlan_gpe.c.

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static fib_protocol_t fib_ip_proto ( bool is_ip6 )

inlinestatic

Definition at line 465 of file vxlan_gpe.c.

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

static

Formatting function for tracing VXLAN GPE with length.

Parameters

*s
*args

Returns: *s

Definition at line 157 of file vxlan_gpe.c.

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

static

Naming for VXLAN GPE tunnel.

Parameters

*s	formatting string
*args

Returns: *s formatted string

Definition at line 105 of file vxlan_gpe.c.

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

Tracing function for VXLAN GPE tunnel packets.

Parameters

*s	formatting string
*args

Returns: *s formatted string

Definition at line 56 of file vxlan_gpe.c.

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static void hash_set_key_copy	(	uword **	h,
		void *	key,
		uword	v
	)

static

Definition at line 377 of file vxlan_gpe.c.

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static void hash_unset_key_free	(	uword **	h,
		void *	key
	)

static

Definition at line 385 of file vxlan_gpe.c.

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static void mcast_shared_add	(	ip46_address_t *	remote,
		fib_node_index_t	mfei,
		adj_index_t	ai
	)

inlinestatic

Definition at line 440 of file vxlan_gpe.c.

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static void mcast_shared_remove ( ip46_address_t * remote )

inlinestatic

Definition at line 453 of file vxlan_gpe.c.

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static clib_error_t* set_ip4_vxlan_gpe_bypass	(	vlib_main_t *	vm,
		unformat_input_t *	input,
		vlib_cli_command_t *	cmd
	)

static

Definition at line 1088 of file vxlan_gpe.c.

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static clib_error_t* set_ip6_vxlan_gpe_bypass	(	vlib_main_t *	vm,
		unformat_input_t *	input,
		vlib_cli_command_t *	cmd
	)

static

Definition at line 1146 of file vxlan_gpe.c.

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static clib_error_t* set_ip_vxlan_gpe_bypass	(	u32	is_ip6,
		unformat_input_t *	input,
		vlib_cli_command_t *	cmd
	)

static

Definition at line 1044 of file vxlan_gpe.c.

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

static

CLI function for showing VXLAN GPE tunnels.

Parameters

*vm
*input
*cmd

Returns: error

Definition at line 996 of file vxlan_gpe.c.

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VNET_DEVICE_CLASS	(	vxlan_gpe_device_class	,
		static
	)

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VNET_HW_INTERFACE_CLASS ( vxlan_gpe_hw_class )

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void vnet_int_vxlan_gpe_bypass_mode	(	u32	sw_if_index,
		u8	is_ip6,
		u8	is_enable
	)

Definition at line 1030 of file vxlan_gpe.c.

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int vnet_vxlan_gpe_add_del_tunnel	(	vnet_vxlan_gpe_add_del_tunnel_args_t *	a,
		u32 *	sw_if_indexp
	)

Add or Del a VXLAN GPE tunnel.

Parameters

*a
*sw_if_index

Returns: rc

Definition at line 480 of file vxlan_gpe.c.

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static uword vtep_addr_ref ( ip46_address_t * ip )

static

Definition at line 394 of file vxlan_gpe.c.

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static uword vtep_addr_unref ( ip46_address_t * ip )

static

Definition at line 408 of file vxlan_gpe.c.

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int vxlan4_gpe_rewrite	(	vxlan_gpe_tunnel_t *	t,
		u32	extension_size,
		u8	protocol_override,
		uword	encap_next_node
	)

Calculate IPv4 VXLAN GPE rewrite header.

Parameters

*t

Returns: rc

Definition at line 270 of file vxlan_gpe.c.

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int vxlan6_gpe_rewrite	(	vxlan_gpe_tunnel_t *	t,
		u32	extension_size,
		u8	protocol_override,
		uword	encap_next_node
	)

Calculate IPv6 VXLAN GPE rewrite header.

Parameters

*t

Returns: rc

Definition at line 327 of file vxlan_gpe.c.

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

static

Definition at line 749 of file vxlan_gpe.c.

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clib_error_t* vxlan_gpe_init ( vlib_main_t * vm )

Feature init function for VXLAN GPE.

Parameters

*vm

Returns: error

Definition at line 1211 of file vxlan_gpe.c.

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

static

CLI function for VXLAN GPE admin up/down.

Parameters

*vnm
hw_if_index
flag

Returns: *rc

Definition at line 130 of file vxlan_gpe.c.

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static fib_node_back_walk_rc_t vxlan_gpe_tunnel_back_walk	(	fib_node_t *	node,
		fib_node_back_walk_ctx_t *	ctx
	)

static

Function definition to backwalk a FIB node - Here we will restack the new dpo of VXLAN_GPE DIP to encap node.

Definition at line 198 of file vxlan_gpe.c.

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static fib_node_t* vxlan_gpe_tunnel_fib_node_get ( fib_node_index_t index )

static

Function definition to get a FIB node from its index.

Definition at line 209 of file vxlan_gpe.c.

static vxlan_gpe_tunnel_t* vxlan_gpe_tunnel_from_fib_node ( fib_node_t * node )

static

Definition at line 184 of file vxlan_gpe.c.

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static void vxlan_gpe_tunnel_last_lock_gone ( fib_node_t * node )

static

Function definition to inform the FIB node that its last lock has gone.

Definition at line 223 of file vxlan_gpe.c.

static void vxlan_gpe_tunnel_restack_dpo ( vxlan_gpe_tunnel_t * t )

static

Definition at line 171 of file vxlan_gpe.c.

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Variable Documentation

vlib_cli_command_t create_vxlan_gpe_tunnel_command

static

Initial value:

= {
  .path = "create vxlan-gpe tunnel",
  .short_help =
  "create vxlan-gpe tunnel local <local-addr> "
  " {remote <remote-addr>|group <mcast-addr> <intf-name>}"
  " vni <nn> [next-ip4][next-ip6][next-ethernet][next-nsh]"
  " [encap-vrf-id <nn>] [decap-vrf-id <nn>] [del]\n",
  .function = vxlan_gpe_add_del_tunnel_command_fn,
}

(constructor) VLIB_CLI_COMMAND (create_vxlan_gpe_tunnel_command)

Definition at line 974 of file vxlan_gpe.c.

vlib_cli_command_t set_interface_ip6_vxlan_gpe_bypass_command

static

Initial value:

= {
  .path = "set interface ip6 vxlan-gpe-bypass",
  .function = set_ip6_vxlan_gpe_bypass,
  .short_help = "set interface ip vxlan-gpe-bypass <interface> [del]",
}

(constructor) VLIB_CLI_COMMAND (set_interface_ip6_vxlan_gpe_bypass_command)

Definition at line 1196 of file vxlan_gpe.c.

vlib_cli_command_t set_interface_ip_vxlan_gpe_bypass_command

static

Initial value:

= {
  .path = "set interface ip vxlan-gpe-bypass",
  .function = set_ip4_vxlan_gpe_bypass,
  .short_help = "set interface ip vxlan-gpe-bypass <interface> [del]",
}

(constructor) VLIB_CLI_COMMAND (set_interface_ip_vxlan_gpe_bypass_command)

Definition at line 1138 of file vxlan_gpe.c.

vlib_cli_command_t show_vxlan_gpe_tunnel_command

static

Initial value:

= {
    .path = "show vxlan-gpe",
    .function = show_vxlan_gpe_tunnel_command_fn,
}

(constructor) VLIB_CLI_COMMAND (show_vxlan_gpe_tunnel_command)

Definition at line 1024 of file vxlan_gpe.c.

vxlan_gpe_main_t vxlan_gpe_main

Definition at line 45 of file vxlan_gpe.c.

const fib_node_vft_t vxlan_gpe_vft

static

Initial value:

= {
    .fnv_get = vxlan_gpe_tunnel_fib_node_get,
    .fnv_last_lock = vxlan_gpe_tunnel_last_lock_gone,
    .fnv_back_walk = vxlan_gpe_tunnel_back_walk,
}

Definition at line 236 of file vxlan_gpe.c.

Macros

Functions

Variables

Detailed Description

Macro Definition Documentation

Function Documentation

Variable Documentation