l2e.c File Reference

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Data Structures
struct	l2_emulation_main_t_
	Grouping of global data for the L2 emulation feature. More...
struct	l2_emulation_t_
	Per-interface L2 configuration. More...
struct	l2_emulation_trace_t_
	per-packet trace data More...

Macros
#define	foreach_l2_emulation

Typedefs
typedef struct l2_emulation_main_t_	l2_emulation_main_t
	Grouping of global data for the L2 emulation feature. More...
typedef struct l2_emulation_t_	l2_emulation_t
	Per-interface L2 configuration. More...
typedef struct l2_emulation_trace_t_	l2_emulation_trace_t
	per-packet trace data More...

Enumerations
enum	l2_emulation_error_t { L2_EMULATION_N_ERROR }
enum	l2_emulation_next_t { L2_EMULATION_N_NEXT }

Functions
void	l2_emulation_enable (u32 sw_if_index)
	L2 Emulation is a feautre that is applied to L2 ports to 'extract' IP packets from the L2 path and inject them into the L3 path (i.e. More...
void	l2_emulation_disable (u32 sw_if_index)
static clib_error_t *	l2_emulation_interface_add_del (vnet_main_t *vnm, u32 sw_if_index, u32 is_add)
	VNET_SW_INTERFACE_ADD_DEL_FUNCTION (l2_emulation_interface_add_del)
static clib_error_t *	l2_emulation_cli (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
static clib_error_t *	l2_emulation_show (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
static uword	l2_emulation_node_fn (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
static u8 *	format_l2_emulation_trace (u8 *s, va_list *args)
	VLIB_NODE_FUNCTION_MULTIARCH (l2_emulation_node, l2_emulation_node_fn)
static clib_error_t *	l2_emulation_init (vlib_main_t *vm)

Variables
static l2_emulation_main_t	l2_emulation_main
static const l2_emulation_t	ezero = { }
	A zero'd out struct we can use in the vec_validate. More...
l2_emulation_t *	l2_emulations
	Per-interface vector of emulation configs. More...
static vlib_cli_command_t	l2_emulation_cli_node
	(constructor) VLIB_CLI_COMMAND (l2_emulation_cli_node) More...
static vlib_cli_command_t	l2_emulation_show_node
	(constructor) VLIB_CLI_COMMAND (l2_emulation_show_node) More...
static char *	l2_emulation_error_strings []
vlib_node_registration_t	l2_emulation_node
	(constructor) VLIB_REGISTER_NODE (l2_emulation_node) More...

Macro Definition Documentation

#define foreach_l2_emulation

Value:

_(IP4, "Extract IPv4")                        \
  _(IP6, "Extract IPv6")

Definition at line 193 of file l2e.c.

Typedef Documentation

typedef struct l2_emulation_main_t_ l2_emulation_main_t

Grouping of global data for the L2 emulation feature.

typedef struct l2_emulation_t_ l2_emulation_t

Per-interface L2 configuration.

typedef struct l2_emulation_trace_t_ l2_emulation_trace_t

per-packet trace data

Enumeration Type Documentation

enum l2_emulation_error_t

Enumerator
L2_EMULATION_N_ERROR

Definition at line 197 of file l2e.c.

enum l2_emulation_next_t

Enumerator
L2_EMULATION_N_NEXT

Definition at line 211 of file l2e.c.

Function Documentation

static u8* format_l2_emulation_trace ( u8 *  s, va_list *  args  )

static

Definition at line 427 of file l2e.c.

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static clib_error_t* l2_emulation_cli ( vlib_main_t *  vm, unformat_input_t *  input, vlib_cli_command_t *  cmd  )

static

Definition at line 107 of file l2e.c.

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void l2_emulation_disable

(

u32

sw_if_index

)

Definition at line 79 of file l2e.c.

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void l2_emulation_enable

(

u32

sw_if_index

)

L2 Emulation is a feautre that is applied to L2 ports to 'extract' IP packets from the L2 path and inject them into the L3 path (i.e.

into the appropriate ip[4|6]_input node). L3 routes in the table_id for that interface should then be configured as DVR routes, therefore the forwarded packet has the L2 header preserved and togehter the L3 routed system behaves like an L2 bridge.

Definition at line 58 of file l2e.c.

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static clib_error_t* l2_emulation_init ( vlib_main_t *  vm )

static

Definition at line 463 of file l2e.c.

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static clib_error_t* l2_emulation_interface_add_del ( vnet_main_t *  vnm, u32  sw_if_index, u32  is_add  )

static

Definition at line 93 of file l2e.c.

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static uword l2_emulation_node_fn ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame  )

static

Definition at line 229 of file l2e.c.

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static clib_error_t* l2_emulation_show ( vlib_main_t *  vm, unformat_input_t *  input, vlib_cli_command_t *  cmd  )

static

Definition at line 157 of file l2e.c.

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VLIB_NODE_FUNCTION_MULTIARCH	(	l2_emulation_node	,
		l2_emulation_node_fn
	)

VNET_SW_INTERFACE_ADD_DEL_FUNCTION

(

l2_emulation_interface_add_del

)

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Variable Documentation

const l2_emulation_t ezero = { }

static

A zero'd out struct we can use in the vec_validate.

Definition at line 50 of file l2e.c.

vlib_cli_command_t l2_emulation_cli_node

static

Initial value:

= {
  .path = "set interface l2 l2-emulation",
  .short_help =
  "set interface l2 l2-emulation <interface-name> [disable|enable]\n",
  .function = l2_emulation_cli,
}

(constructor) VLIB_CLI_COMMAND (l2_emulation_cli_node)

Definition at line 148 of file l2e.c.

char* l2_emulation_error_strings[]

static

Initial value:

= {
#define _(sym,string) 
  foreach_l2_emulation

}

Definition at line 205 of file l2e.c.

l2_emulation_main_t l2_emulation_main

static

Definition at line 33 of file l2e.c.

vlib_node_registration_t l2_emulation_node

Initial value:

= {
  .function = l2_emulation_node_fn,
  .name = "l2-emulation",
  .vector_size = sizeof (u32),
  .format_trace = format_l2_emulation_trace,
  .type = VLIB_NODE_TYPE_INTERNAL,

  .n_errors = ARRAY_LEN(l2_emulation_error_strings),
  .error_strings = l2_emulation_error_strings,

  .n_next_nodes = L2_EMULATION_N_NEXT,

  
  .next_nodes = {
    [L2_EMULATION_NEXT_IP4] = "ip4-input",
    [L2_EMULATION_NEXT_IP6] = "ip6-input",
  },
}

(constructor) VLIB_REGISTER_NODE (l2_emulation_node)

Definition at line 439 of file l2e.c.

vlib_cli_command_t l2_emulation_show_node

static

Initial value:

= {
  .path = "show interface l2 l2-emulation",
  .short_help = "show interface l2 l2-emulation\n",
  .function = l2_emulation_show,
}

(constructor) VLIB_CLI_COMMAND (l2_emulation_show_node)

Definition at line 186 of file l2e.c.

l2_emulation_t* l2_emulations

Per-interface vector of emulation configs.

Definition at line 55 of file l2e.c.