snat.c File Reference

Include dependency graph for snat.c:

Go to the source code of this file.

Macros
#define	vl_typedefs
#define	vl_endianfun
#define	vl_print(handle, ...)   vlib_cli_output (handle, __VA_ARGS__)
#define	vl_api_version(n, v)   static u32 api_version=(v);
#define	FINISH
#define	REPLY_MACRO(t)
#define	REPLY_MACRO2(t, body)
#define	VALIDATE_SW_IF_INDEX(mp)
#define	BAD_SW_IF_INDEX_LABEL
#define	VALIDATE_RX_SW_IF_INDEX(mp)
#define	BAD_RX_SW_IF_INDEX_LABEL
#define	VALIDATE_TX_SW_IF_INDEX(mp)
#define	BAD_TX_SW_IF_INDEX_LABEL
#define	foreach_snat_plugin_api_msg
#define	vl_msg_name_crc_list

Functions
	VNET_FEATURE_INIT (ip4_snat_in2out, static)
	VNET_FEATURE_INIT (ip4_snat_out2in, static)
	VNET_FEATURE_INIT (ip4_snat_in2out_worker_handoff, static)
	VNET_FEATURE_INIT (ip4_snat_out2in_worker_handoff, static)
	VNET_FEATURE_INIT (ip4_snat_in2out_fast, static)
	VNET_FEATURE_INIT (ip4_snat_out2in_fast, static)
clib_error_t *	vlib_plugin_register (vlib_main_t *vm, vnet_plugin_handoff_t *h, int from_early_init)
void	snat_add_address (snat_main_t *sm, ip4_address_t *addr)
static int	is_snat_address_used_in_static_mapping (snat_main_t *sm, ip4_address_t addr)
int	snat_del_address (snat_main_t *sm, ip4_address_t addr)
static void	increment_v4_address (ip4_address_t *a)
int	snat_add_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr, u16 l_port, u16 e_port, u32 vrf_id, int addr_only, int is_add)
	Add static mapping. More...
static int	snat_interface_add_del (u32 sw_if_index, u8 is_inside, int is_del)
static int	snat_set_workers (uword *bitmap)
static void	vl_api_snat_add_address_range_t_handler (vl_api_snat_add_address_range_t *mp)
static void *	vl_api_snat_add_address_range_t_print (vl_api_snat_add_address_range_t *mp, void *handle)
static void	send_snat_address_details (snat_address_t *a, unix_shared_memory_queue_t *q, u32 context)
static void	vl_api_snat_address_dump_t_handler (vl_api_snat_address_dump_t *mp)
static void *	vl_api_snat_address_dump_t_print (vl_api_snat_address_dump_t *mp, void *handle)
static void	vl_api_snat_interface_add_del_feature_t_handler (vl_api_snat_interface_add_del_feature_t *mp)
static void *	vl_api_snat_interface_add_del_feature_t_print (vl_api_snat_interface_add_del_feature_t *mp, void *handle)
static void	send_snat_interface_details (snat_interface_t *i, unix_shared_memory_queue_t *q, u32 context)
static void	vl_api_snat_interface_dump_t_handler (vl_api_snat_interface_dump_t *mp)
static void *	vl_api_snat_interface_dump_t_print (vl_api_snat_interface_dump_t *mp, void *handle)
static void	vl_api_snat_add_static_mapping_t_handler (vl_api_snat_add_static_mapping_t *mp)
static void *	vl_api_snat_add_static_mapping_t_print (vl_api_snat_add_static_mapping_t *mp, void *handle)
static void	send_snat_static_mapping_details (snat_static_mapping_t *m, unix_shared_memory_queue_t *q, u32 context)
static void	vl_api_snat_static_mapping_dump_t_handler (vl_api_snat_static_mapping_dump_t *mp)
static void *	vl_api_snat_static_mapping_dump_t_print (vl_api_snat_static_mapping_dump_t *mp, void *handle)
static void	vl_api_snat_control_ping_t_handler (vl_api_snat_control_ping_t *mp)
static void *	vl_api_snat_control_ping_t_print (vl_api_snat_control_ping_t *mp, void *handle)
static void	vl_api_snat_show_config_t_handler (vl_api_snat_show_config_t *mp)
static void *	vl_api_snat_show_config_t_print (vl_api_snat_show_config_t *mp, void *handle)
static void	vl_api_snat_set_workers_t_handler (vl_api_snat_set_workers_t *mp)
static void *	vl_api_snat_set_workers_t_print (vl_api_snat_set_workers_t *mp, void *handle)
static void	send_snat_worker_details (u32 worker_index, unix_shared_memory_queue_t *q, u32 context)
static void	vl_api_snat_worker_dump_t_handler (vl_api_snat_worker_dump_t *mp)
static void *	vl_api_snat_worker_dump_t_print (vl_api_snat_worker_dump_t *mp, void *handle)
static clib_error_t *	snat_plugin_api_hookup (vlib_main_t *vm)
static void	setup_message_id_table (snat_main_t *sm, api_main_t *am)
static void	plugin_custom_dump_configure (snat_main_t *sm)
static clib_error_t *	snat_init (vlib_main_t *vm)
void	snat_free_outside_address_and_port (snat_main_t *sm, snat_session_key_t *k, u32 address_index)
int	snat_static_mapping_match (snat_main_t *sm, snat_session_key_t match, snat_session_key_t *mapping, u8 by_external)
	Match SNAT static mapping. More...
int	snat_alloc_outside_address_and_port (snat_main_t *sm, snat_session_key_t *k, u32 *address_indexp)
static clib_error_t *	add_address_command_fn (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
static clib_error_t *	snat_feature_command_fn (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
static clib_error_t *	add_static_mapping_command_fn (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
static clib_error_t *	set_workers_command_fn (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
static clib_error_t *	snat_config (vlib_main_t *vm, unformat_input_t *input)
u8 *	format_snat_key (u8 *s, va_list *args)
u8 *	format_snat_session (u8 *s, va_list *args)
u8 *	format_snat_user (u8 *s, va_list *args)
u8 *	format_snat_static_mapping (u8 *s, va_list *args)
static clib_error_t *	show_snat_command_fn (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)

Variables
snat_main_t	snat_main
static vlib_cli_command_t	add_address_command
	(constructor) VLIB_CLI_COMMAND (add_address_command) More...
static vlib_cli_command_t	set_interface_snat_command
	(constructor) VLIB_CLI_COMMAND (set_interface_snat_command) More...
static vlib_cli_command_t	add_static_mapping_command
	(constructor) VLIB_CLI_COMMAND (add_static_mapping_command) More...
static vlib_cli_command_t	set_workers_command
	(constructor) VLIB_CLI_COMMAND (set_workers_command) More...
static vlib_cli_command_t	show_snat_command
	(constructor) VLIB_CLI_COMMAND (show_snat_command) More...

Macro Definition Documentation

#define BAD_RX_SW_IF_INDEX_LABEL

Value:

do {                                            \
bad_rx_sw_if_index:                             \
    ;                                           \
} while (0);

Definition at line 178 of file snat.c.

#define BAD_SW_IF_INDEX_LABEL

Value:

do {                                            \
bad_sw_if_index:                                \
    ;                                           \
} while (0);

Definition at line 162 of file snat.c.

#define BAD_TX_SW_IF_INDEX_LABEL

Value:

do {                                            \
bad_tx_sw_if_index:                             \
    ;                                           \
} while (0);

Definition at line 194 of file snat.c.

#define FINISH

Value:

vec_add1 (s, 0);                            \
    vl_print (handle, (char *)s);               \
    vec_free (s);                               \
    return handle;

Definition at line 50 of file snat.c.

#define foreach_snat_plugin_api_msg

Value:

_(SNAT_ADD_ADDRESS_RANGE, snat_add_address_range)                       \
_(SNAT_INTERFACE_ADD_DEL_FEATURE, snat_interface_add_del_feature)       \
_(SNAT_ADD_STATIC_MAPPING, snat_add_static_mapping)                     \
_(SNAT_CONTROL_PING, snat_control_ping)                                 \
_(SNAT_STATIC_MAPPING_DUMP, snat_static_mapping_dump)                   \
_(SNAT_SHOW_CONFIG, snat_show_config)                                   \
_(SNAT_ADDRESS_DUMP, snat_address_dump)                                 \
_(SNAT_INTERFACE_DUMP, snat_interface_dump)                             \
_(SNAT_SET_WORKERS, snat_set_workers)                                   \
_(SNAT_WORKER_DUMP, snat_worker_dump)

Definition at line 1096 of file snat.c.

#define REPLY_MACRO

(

t

)

Value:

do {                                                            \
    unix_shared_memory_queue_t * q =                            \
    vl_api_client_index_to_input_queue (mp->client_index);      \
    if (!q)                                                     \
        return;                                                 \
                                                                \
    rmp = vl_msg_api_alloc (sizeof (*rmp));                     \
    rmp->_vl_msg_id = ntohs((t)+sm->msg_id_base);               \
    rmp->context = mp->context;                                 \
    rmp->retval = ntohl(rv);                                    \
                                                                \
    vl_msg_api_send_shmem (q, (u8 *)&rmp);                      \
} while(0);

Definition at line 64 of file snat.c.

#define REPLY_MACRO2	(		t,
			body
	)

Value:

do {                                                            \
    unix_shared_memory_queue_t * q =                            \
    vl_api_client_index_to_input_queue (mp->client_index);      \
    if (!q)                                                     \
        return;                                                 \
                                                                \
    rmp = vl_msg_api_alloc (sizeof (*rmp));                     \
    rmp->_vl_msg_id = ntohs((t)+sm->msg_id_base);               \
    rmp->context = mp->context;                                 \
    rmp->retval = ntohl(rv);                                    \
    do {body;} while (0);                                       \
    vl_msg_api_send_shmem (q, (u8 *)&rmp);                      \
} while(0);

Definition at line 79 of file snat.c.

#define VALIDATE_RX_SW_IF_INDEX

(

mp

)

Value:

do { u32 __rx_sw_if_index = ntohl(mp->rx_sw_if_index);          \
    vnet_main_t *__vnm = vnet_get_main();                       \
    if (pool_is_free_index(__vnm->interface_main.sw_interfaces, \
                           __rx_sw_if_index)) {                 \
        rv = VNET_API_ERROR_INVALID_SW_IF_INDEX;                \
        goto bad_rx_sw_if_index;                                \
    }                                                           \
} while(0);

Definition at line 168 of file snat.c.

#define VALIDATE_SW_IF_INDEX

(

mp

)

Value:

do { u32 __sw_if_index = ntohl(mp->sw_if_index);                \
    vnet_main_t *__vnm = vnet_get_main();                       \
    if (pool_is_free_index(__vnm->interface_main.sw_interfaces, \
                           __sw_if_index)) {                    \
        rv = VNET_API_ERROR_INVALID_SW_IF_INDEX;                \
        goto bad_sw_if_index;                                   \
    }                                                           \
} while(0);

Definition at line 152 of file snat.c.

#define VALIDATE_TX_SW_IF_INDEX

(

mp

)

Value:

do { u32 __tx_sw_if_index = ntohl(mp->tx_sw_if_index);          \
    vnet_main_t *__vnm = vnet_get_main();                       \
    if (pool_is_free_index(__vnm->interface_main.sw_interfaces, \
                           __tx_sw_if_index)) {                 \
        rv = VNET_API_ERROR_INVALID_SW_IF_INDEX;                \
        goto bad_tx_sw_if_index;                                \
    }                                                           \
} while(0);

Definition at line 184 of file snat.c.

#define vl_api_version	(		n,
			v
	)		static u32 api_version=(v);

Definition at line 45 of file snat.c.

#define vl_endianfun

Definition at line 38 of file snat.c.

#define vl_msg_name_crc_list

Definition at line 1127 of file snat.c.

#define vl_print	(		handle,
			...
	)		vlib_cli_output (handle, __VA_ARGS__)

Definition at line 42 of file snat.c.

#define vl_typedefs

Definition at line 33 of file snat.c.

Function Documentation

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

static

Definition at line 1330 of file snat.c.

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

static

Definition at line 1479 of file snat.c.

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

Definition at line 1717 of file snat.c.

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

Definition at line 1736 of file snat.c.

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

Definition at line 1794 of file snat.c.

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

Definition at line 1754 of file snat.c.

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static void increment_v4_address ( ip4_address_t *  a )

static

Definition at line 308 of file snat.c.

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static int is_snat_address_used_in_static_mapping ( snat_main_t *  sm, ip4_address_t  addr  )

static

Definition at line 227 of file snat.c.

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static void plugin_custom_dump_configure ( snat_main_t *  sm )

static

Definition at line 1140 of file snat.c.

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static void send_snat_address_details ( snat_address_t *  a, unix_shared_memory_queue_t *  q, u32  context  )

static

Definition at line 720 of file snat.c.

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static void send_snat_interface_details ( snat_interface_t *  i, unix_shared_memory_queue_t *  q, u32  context  )

static

Definition at line 796 of file snat.c.

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static void send_snat_static_mapping_details ( snat_static_mapping_t *  m, unix_shared_memory_queue_t *  q, u32  context  )

static

Definition at line 895 of file snat.c.

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static void send_snat_worker_details ( u32  worker_index, unix_shared_memory_queue_t *  q, u32  context  )

static

Definition at line 1049 of file snat.c.

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

static

Definition at line 1565 of file snat.c.

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static void setup_message_id_table ( snat_main_t *  sm, api_main_t *  am  )

static

Definition at line 1132 of file snat.c.

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

static

Definition at line 1813 of file snat.c.

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void snat_add_address	(	snat_main_t *	sm,
		ip4_address_t *	addr
	)

Definition at line 211 of file snat.c.

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int snat_add_static_mapping	(	ip4_address_t	l_addr,
		ip4_address_t	e_addr,
		u16	l_port,
		u16	e_port,
		u32	vrf_id,
		int	addr_only,
		int	is_add
	)

Add static mapping.

Create static mapping between local addr+port and external addr+port.

Parameters

l_addr	Local IPv4 address.
e_addr	External IPv4 address.
l_port	Local port number.
e_port	External port number.
vrf_id	VRF ID.
addr_only	If 0 address port and pair mapping, otherwise address only.
is_add	If 0 delete static mapping, otherwise add.

Returns

Definition at line 331 of file snat.c.

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int snat_alloc_outside_address_and_port	(	snat_main_t *	sm,
		snat_session_key_t *	k,
		u32 *	address_indexp
	)

Definition at line 1292 of file snat.c.

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static clib_error_t* snat_config ( vlib_main_t *  vm, unformat_input_t *  input  )

static

Definition at line 1625 of file snat.c.

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int snat_del_address	(	snat_main_t *	sm,
		ip4_address_t	addr
	)

Definition at line 240 of file snat.c.

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

static

Definition at line 1413 of file snat.c.

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void snat_free_outside_address_and_port	(	snat_main_t *	sm,
		snat_session_key_t *	k,
		u32	address_index
	)

Definition at line 1213 of file snat.c.

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static clib_error_t* snat_init ( vlib_main_t *  vm )

static

Definition at line 1149 of file snat.c.

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static int snat_interface_add_del ( u32  sw_if_index, u8  is_inside, int  is_del  )

static

Definition at line 580 of file snat.c.

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static clib_error_t* snat_plugin_api_hookup ( vlib_main_t *  vm )

static

Definition at line 1110 of file snat.c.

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static int snat_set_workers ( uword *  bitmap )

static

Definition at line 628 of file snat.c.

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int snat_static_mapping_match	(	snat_main_t *	sm,
		snat_session_key_t	match,
		snat_session_key_t *	mapping,
		u8	by_external
	)

Match SNAT static mapping.

Parameters

sm	SNAT main.
match	Address and port to match.
mapping	External or local address and port of the matched mapping.
by_external	If 0 match by local address otherwise match by external address.

Returns

0 if match found otherwise 1.

Definition at line 1242 of file snat.c.

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static void vl_api_snat_add_address_range_t_handler ( vl_api_snat_add_address_range_t *  mp )

static

Definition at line 650 of file snat.c.

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static void* vl_api_snat_add_address_range_t_print ( vl_api_snat_add_address_range_t *  mp, void *  handle  )

static

Definition at line 705 of file snat.c.

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static void vl_api_snat_add_static_mapping_t_handler ( vl_api_snat_add_static_mapping_t *  mp )

static

Definition at line 840 of file snat.c.

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static void* vl_api_snat_add_static_mapping_t_print ( vl_api_snat_add_static_mapping_t *  mp, void *  handle  )

static

Definition at line 873 of file snat.c.

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static void vl_api_snat_address_dump_t_handler ( vl_api_snat_address_dump_t *  mp )

static

Definition at line 737 of file snat.c.

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static void* vl_api_snat_address_dump_t_print ( vl_api_snat_address_dump_t *  mp, void *  handle  )

static

Definition at line 752 of file snat.c.

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static void vl_api_snat_control_ping_t_handler ( vl_api_snat_control_ping_t *  mp )

static

Definition at line 945 of file snat.c.

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static void* vl_api_snat_control_ping_t_print ( vl_api_snat_control_ping_t *  mp, void *  handle  )

static

Definition at line 958 of file snat.c.

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static void vl_api_snat_interface_add_del_feature_t_handler ( vl_api_snat_interface_add_del_feature_t *  mp )

static

Definition at line 763 of file snat.c.

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static void* vl_api_snat_interface_add_del_feature_t_print ( vl_api_snat_interface_add_del_feature_t *  mp, void *  handle  )

static

Definition at line 781 of file snat.c.

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static void vl_api_snat_interface_dump_t_handler ( vl_api_snat_interface_dump_t *  mp )

static

Definition at line 813 of file snat.c.

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static void* vl_api_snat_interface_dump_t_print ( vl_api_snat_interface_dump_t *  mp, void *  handle  )

static

Definition at line 830 of file snat.c.

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static void vl_api_snat_set_workers_t_handler ( vl_api_snat_set_workers_t *  mp )

static

Definition at line 1002 of file snat.c.

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static void* vl_api_snat_set_workers_t_print ( vl_api_snat_set_workers_t *  mp, void *  handle  )

static

Definition at line 1025 of file snat.c.

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static void vl_api_snat_show_config_t_handler ( vl_api_snat_show_config_t *  mp )

static

Definition at line 969 of file snat.c.

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static void* vl_api_snat_show_config_t_print ( vl_api_snat_show_config_t *  mp, void *  handle  )

static

Definition at line 991 of file snat.c.

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static void vl_api_snat_static_mapping_dump_t_handler ( vl_api_snat_static_mapping_dump_t *  mp )

static

Definition at line 917 of file snat.c.

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static void* vl_api_snat_static_mapping_dump_t_print ( vl_api_snat_static_mapping_dump_t *  mp, void *  handle  )

static

Definition at line 934 of file snat.c.

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static void vl_api_snat_worker_dump_t_handler ( vl_api_snat_worker_dump_t *  mp )

static

Definition at line 1069 of file snat.c.

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static void* vl_api_snat_worker_dump_t_print ( vl_api_snat_worker_dump_t *  mp, void *  handle  )

static

Definition at line 1086 of file snat.c.

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clib_error_t* vlib_plugin_register	(	vlib_main_t *	vm,
		vnet_plugin_handoff_t *	h,
		int	from_early_init
	)

Definition at line 136 of file snat.c.

VNET_FEATURE_INIT	(	ip4_snat_in2out	,
		static
	)

VNET_FEATURE_INIT	(	ip4_snat_out2in	,
		static
	)

VNET_FEATURE_INIT	(	ip4_snat_in2out_worker_handoff	,
		static
	)

VNET_FEATURE_INIT	(	ip4_snat_out2in_worker_handoff	,
		static
	)

VNET_FEATURE_INIT	(	ip4_snat_in2out_fast	,
		static
	)

VNET_FEATURE_INIT	(	ip4_snat_out2in_fast	,
		static
	)

Variable Documentation

vlib_cli_command_t add_address_command

static

Initial value:

= {
  .path = "snat add address",
  .short_help = "snat add addresses <ip4-range-start> [- <ip4-range-end>] [del]",
  .function = add_address_command_fn,
}

(constructor) VLIB_CLI_COMMAND (add_address_command)

Definition at line 1406 of file snat.c.

vlib_cli_command_t add_static_mapping_command

static

Initial value:

= {
  .path = "snat add static mapping",
  .function = add_static_mapping_command_fn,
  .short_help =
    "snat add static mapping local <addr> [<port>] external <addr> [<port>] [vrf <table-id>] [del]",
}

(constructor) VLIB_CLI_COMMAND (add_static_mapping_command)

Definition at line 1557 of file snat.c.

vlib_cli_command_t set_interface_snat_command

static

Initial value:

= {
  .path = "set interface snat",
  .function = snat_feature_command_fn,
  .short_help = "set interface snat in <intfc> out <intfc> [del]",
}

(constructor) VLIB_CLI_COMMAND (set_interface_snat_command)

Definition at line 1472 of file snat.c.

vlib_cli_command_t set_workers_command

static

Initial value:

= {
  .path = "set snat workers",
  .function = set_workers_command_fn,
  .short_help =
    "set snat workers <workers-list>",
}

(constructor) VLIB_CLI_COMMAND (set_workers_command)

Definition at line 1617 of file snat.c.

vlib_cli_command_t show_snat_command

static

Initial value:

= {
    .path = "show snat",
    .short_help = "show snat",
    .function = show_snat_command_fn,
}

(constructor) VLIB_CLI_COMMAND (show_snat_command)

Definition at line 1953 of file snat.c.

snat_main_t snat_main

Definition at line 27 of file snat.c.