/*
* Copyright (c) 2018 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @file
* @brief NAT44 CLI
*/
#include <nat/nat.h>
#include <nat/nat_ipfix_logging.h>
#include <nat/nat_det.h>
#include <nat/nat64.h>
#include <nat/nat_inlines.h>
#include <nat/nat_affinity.h>
#include <vnet/fib/fib_table.h>
#include <nat/nat_ha.h>
#define UNSUPPORTED_IN_DET_MODE_STR \
"This command is unsupported in deterministic mode"
#define SUPPORTED_ONLY_IN_DET_MODE_STR \
"This command is supported only in deterministic mode"
static clib_error_t *
set_workers_command_fn (vlib_main_t * vm,
unformat_input_t * input, vlib_cli_command_t * cmd)
{
unformat_input_t _line_input, *line_input = &_line_input;
snat_main_t *sm = &snat_main;
uword *bitmap = 0;
int rv = 0;
clib_error_t *error = 0;
if (sm->deterministic)
return clib_error_return (0, UNSUPPORTED_IN_DET_MODE_STR);
/* Get a line of input. */
if (!unformat_user (input, unformat_line_input, line_input))
return 0;
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (line_input, "%U", unformat_bitmap_list, &bitmap))
;
else
{
error = clib_error_return (0, "unknown input '%U'",
format_unformat_error, line_input);
goto done;
}
}
if (bitmap == 0)
{
error = clib_error_return (0, "List of workers must be specified.");
goto done;
}
rv = snat_set_workers (bitmap);
clib_bitmap_free (bitmap);
switch (rv)
{
case VNET_API_ERROR_INVALID_WORKER:
error = clib_error_return (0, "Invalid worker(s).");
goto done;
case VNET_API_ERROR_FEATURE_DISABLED:
error = clib_error_return (0,
"Supported only if 2 or more workes available.");
goto done;
default:
break;
}
done:
unformat_free (line_input);
return error;
}
static clib_error_t *
nat_show_workers_commnad_fn (vlib_main_t * vm, unformat_input_t * input,
vlib_cli_command_t * cmd)
{
snat_main_t *sm = &snat_main;
u32 *worker;
if (sm->deterministic)
return clib_error_return (0, UNSUPPORTED_IN_DET_MODE_STR);
if (sm->num_workers > 1)
{
vlib_cli_output (vm, "%d workers", vec_len (sm->workers));
/* *INDENT-OFF* */
vec_foreach (worker, sm->workers)
{
vlib_worker_thread_t *w =
vlib_worker_threads + *worker + sm->first_worker_index;
vlib_cli_output (vm, " %s", w->name);
}
/* *INDENT-ON* */
}
return 0;
}
static clib_error_t *
snat_ipfix_logging_enable_disable_command_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
unformat_input_t _line_input, *line_input = &_line_input;
u32 domain_id = 0;
u32 src_port = 0;
u8 enable = 1;
int rv = 0;
clib_error_t *error = 0;
/* Get a line of input. */
if (!unformat_user (input, unformat_line_input, line_input))
{
rv = snat_ipfix_logging_enable_disable (enable, domain_id,
(u16) src_port);
if (rv)
return clib_error_return (0, "ipfix logging enable failed");
return 0;
}
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (line_input, "domain %d", &domain_id))
;
else if (unformat (line_input, "src-port %d", &src_port))
;
else if (unformat (line_input, "disable"))
enable = 0;
else
{
error = clib_error_return (0, "unknown input '%U'",
format_unformat_error, line_input);
goto done;
}
}
rv = snat_ipfix_logging_enable_disable (enable, domain_id, (u16) src_port);
if (rv)
{
error = clib_error_return (0, "ipfix logging enable failed");
goto done;
}
done:
unformat_free (line_input);
return error;
}
static clib_error_t *
nat44_show_hash_commnad_fn (vlib_main_t * vm, unformat_input_t * input,
vlib_cli_command_t * cmd)
{
snat_main_t *sm = &snat_main;
snat_main_per_thread_data_t *tsm;
nat_affinity_main_t *nam = &nat_affinity_main;
int i;
int verbose = 0;
if (unformat (input, "detail"))
verbose = 1;
else if (unformat (input, "verbose"))
verbose = 2;
vlib_cli_output (vm, "%U", format_bihash_8_8, &sm->static_mapping_by_local,
verbose);
vlib_cli_output (vm, "%U",
format_bihash_8_8, &sm->static_mapping_by_external,
verbose);
vec_foreach_index (i, sm->per_thread_data)
{
tsm = vec_elt_at_index (sm->per_thread_data, i);
vlib_cli_output (vm, "-------- thread %d %s --------\n",
i, vlib_worker_threads[i].name);
if (sm->endpoint_dependent)
{
vlib_cli_output (vm, "%U", format_bihash_16_8, &tsm->in2out_ed,
verbose);
vlib_cli_output (vm, "%U", format_bihash_16_8, &tsm->out2in_ed,
verbose);
}
else
{
vlib_cli_output (vm, "%U", format_bihash_8_8, &tsm->in2out, verbose);
vlib_cli_output (vm, "%U", format_bihash_8_8, &tsm->out2in, verbose);
}
vlib_cli_output (vm, "%U", format_bihash_8_8, &tsm->user_hash, verbose);
}
if (sm->endpoint_dependent)
vlib_cli_output (vm, "%U", format_bihash_16_8, &nam->affinity_hash,
verbose);
return 0;
}
static clib_error_t *
nat44_set_alloc_addr_and_port_alg_command_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
unformat_input_t _line_input, *line_input = &_line_input;
snat_main_t *sm = &snat_main;
clib_error_t *error = 0;
u32 psid, psid_offset, psid_length, port_start, port_end;
if (sm->deterministic)
return clib_error_return (0, UNSUPPORTED_IN_DET_MODE_STR);
/* Get a line of input. */
if (!unformat_user (input, unformat_line_input, line_input))
return 0;
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (line_input, "default"))
nat_set_alloc_addr_and_port_default ();
else
if (unformat
(line_input, "map-e psid %d psid-offset %d psid-len %d", &psid,
&psid_offset, &psid_length))
nat_set_alloc_addr_and_port_mape ((u16) psid, (u16) psid_offset,
(u16) psid_length);
else
if (unformat
(line_input, "port-range %d - %d", &port_start, &port_end))
{
if (port_end <= port_start)
{
error =
clib_error_return (0,
"The end-port must be greater than start-port");
goto done;
}
nat_set_alloc_addr_and_port_range ((u16) port_start,
(u16) port_end);
}
else
{
error = clib_error_return (0, "unknown input '%U'",
format_unformat_error, line_input);
goto done;
}
}
done:
unformat_free (line_input);
return error;
};
static clib_error_t *
nat44_show_alloc_addr_and_port_alg_command_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
snat_main_t *sm = &snat_main;
if (sm->deterministic)
return clib_error_return (0, UNSUPPORTED_IN_DET_MODE_STR);
vlib_cli_output (vm, "NAT address and port: %U",
format_nat_addr_and_port_alloc_alg,
sm->addr_and_port_alloc_alg);
switch (sm->addr_and_port_alloc_alg)
{
case NAT_ADDR_AND_PORT_ALLOC_ALG_MAPE:
vlib_cli_output (vm, " psid %d psid-offset %d psid-len %d", sm->psid,
sm->psid_offset, sm->psid_length);
break;
case NAT_ADDR_AND_PORT_ALLOC_ALG_RANGE:
vlib_cli_output (vm, " start-port %d end-port %d", sm->start_port,
sm->end_port);
break;
default:
break;
}
return 0;
}
static clib_error_t *
nat_set_mss_clamping_command_fn (vlib_main_t * vm, unformat_input_t * input,
vlib_cli_command_t * cmd)
{
unformat_input_t _line_input, *line_input = &_line_input;
snat_main_t *sm = &snat_main;
clib_error_t *error = 0;
u32 mss;
/* Get a line of input. */
if (!unformat_user (input, unformat_line_input, line_input))
return 0;
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (line_input, "disable"))
sm->mss_clamping = 0;
else if (unformat (line_input, "%d", &mss))
{
sm->mss_clamping = (u16) mss;
sm->mss_value_net = clib_host_to_net_u16 (sm->mss_clamping);
}
else
{
error = clib_error_return (0, "unknown input '%U'",
format_unformat_error, line_input);
goto done;
}
}
done:
unformat_free (line_input);
return error;
}
static clib_error_t *
nat_show_mss_clamping_command_fn (vlib_main_t * vm, unformat_input_t * input,
vlib_cli_command_t * cmd)
{
snat_main_t *sm = &snat_main;
if (sm->mss_clamping)
vlib_cli_output (vm, "mss-clamping %d", sm->mss_clamping);
else
vlib_cli_output (vm, "mss-clamping disabled");
return 0;
}
static clib_error_t *
nat_ha_failover_command_fn (vlib_main_t * vm, unformat_input_t * input,
vlib_cli_command_t * cmd)
{
unformat_input_t _line_input, *line_input = &_line_input;
ip4_address_t addr;
u32 port, session_refresh_interval = 10;
int rv;
clib_error_t *error = 0;
/* Get a line of input. */
if (!unformat_user (input, unformat_line_input, line_input))
return 0;
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (line_input, "%U:%u", unformat_ip4_address, &addr, &port))
;
else
if (unformat
(line_input, "refresh-intervval %u", &session_refresh_interval))
;
else
{
error = clib_error_return (0, "unknown input '%U'",
format_unformat_error, line_input);
goto done;
}
}
rv = nat_ha_set_failover (&addr, (u16) port, session_refresh_interval);
if (rv)
error = clib_error_return (0, "set HA failover failed");
done:
unformat_free (line_input);
return error;
}
static clib_error_t *
nat_ha_listener_command_fn (vlib_main_t * vm, unformat_input_t * input,
vlib_cli_command_t * cmd)
{
unformat_input_t _line_input, *line_input = &_line_input;
ip4_address_t addr;
u32 port, path_mtu = 512;
int rv;
clib_error_t *error = 0;
/* Get a line of input. */
if (!unformat_user (input, unformat_line_input, line_input))
return 0;
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (line_input, "%U:%u", unformat_ip4_address, &addr, &port))
;
else if (unformat (line_input, "path-mtu %u", &path_mtu))
;
else
{
error = clib_error_return (0, "unknown input '%U'",
format_unformat_error, line_input);
goto done;
}
}
rv = nat_ha_set_listener (&addr, (u16) port, path_mtu);
if (rv)
error = clib_error_return (0, "set HA listener failed");
done:
unformat_free (line_input);
return error;
}
static clib_error_t *
nat_show_ha_command_fn (vlib_main_t * vm, unformat_input_t * input,
vlib_cli_command_t * cmd)
{
ip4_address_t addr;
u16 port;
u32 path_mtu, session_refresh_interval, resync_ack_missed;
u8 in_resync;
nat_ha_get_listener (&addr, &port, &path_mtu);
if (!port)
{
vlib_cli_output (vm, "NAT HA disabled\n");
return 0;
}
vlib_cli_output (vm, "LISTENER:\n");
vlib_cli_output (vm, " %U:%u path-mtu %u\n",
format_ip4_address, &addr, port, path_mtu);
nat_ha_get_failover (&addr, &port, &session_refresh_interval);
vlib_cli_output (vm, "FAILOVER:\n");
if (port)
vlib_cli_output (vm, " %U:%u refresh-intervval %usec\n",
format_ip4_address, &addr, port,
session_refresh_interval);
else
vlib_cli_output (vm, " NA\n");
nat_ha_get_resync_status (&in_resync, &resync_ack_missed);
vlib_cli_output (vm, "RESYNC:\n");
if (in_resync)
vlib_cli_output (vm, " in progress\n");
else
vlib_cli_output (vm, " completed (%d ACK missed)\n", resync_ack_missed);
return 0;
}
static clib_error_t *
nat_ha_flush_command_fn (vlib_main_t * vm, unformat_input_t * input,
vlib_cli_command_t * cmd)
{
nat_ha_flush (0);
return 0;
}
static clib_error_t *
nat_ha_resync_command_fn (vlib_main_t * vm, unformat_input_t * input,
vlib_cli_command_t * cmd)
{
clib_error_t *error = 0;
if (nat_ha_resync (0, 0, 0))
error = clib_error_return (0, "NAT HA resync already running");
return error;
}
static clib_error_t *
add_address_command_fn (vlib_main_t * vm,
unformat_input_t * input, vlib_cli_command_t * cmd)
{
unformat_input_t _line_input, *line_input = &_line_input;
snat_main_t *sm = &snat_main;
ip4_address_t start_addr, end_addr, this_addr;
u32 start_host_order, end_host_order;
u32 vrf_id = ~0;
int i, count;
int is_add = 1;
int rv = 0;
clib_error_t *error = 0;
u8 twice_nat = 0;
if (sm->deterministic)
return clib_error_return (0, UNSUPPORTED_IN_DET_MODE_STR);
/* Get a line of input. */
if (!unformat_user (input, unformat_line_input, line_input))
return 0;
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (line_input, "%U - %U",
unformat_ip4_address, &start_addr,
unformat_ip4_address, &end_addr))
;
else if (unformat (line_input, "tenant-vrf %u", &vrf_id))
;
else if (unformat (line_input, "%U", unformat_ip4_address, &start_addr))
end_addr = start_addr;
else if (unformat (line_input, "twice-nat"))
twice_nat = 1;
else if (unformat (line_input, "del"))
is_add = 0;
else
{
error = clib_error_return (0, "unknown input '%U'",
format_unformat_error, line_input);
goto done;
}
}
if (sm->static_mapping_only)
{
error = clib_error_return (0, "static mapping only mode");
goto done;
}
start_host_order = clib_host_to_net_u32 (start_addr.as_u32);
end_host_order = clib_host_to_net_u32 (end_addr.as_u32);
if (end_host_order < start_host_order)
{
error = clib_error_return (0, "end address less than start address");
goto done;
}
count = (end_host_order - start_host_order) + 1;
if (count > 1024)
nat_log_info ("%U - %U, %d addresses...",
format_ip4_address, &start_addr,
format_ip4_address, &end_addr, count);
this_addr = start_addr;
for (i = 0; i < count; i++)
{
if (is_add)
rv = snat_add_address (sm, &this_addr, vrf_id, twice_nat);
else
rv = snat_del_address (sm, this_addr, 0, twice_nat);
switch (rv)
{
case VNET_API_ERROR_VALUE_EXIST:
error = clib_error_return (0, "NAT address already in use.");
goto done;
case VNET_API_ERROR_NO_SUCH_ENTRY:
error = clib_error_return (0, "NAT address not exist.");
goto done;
case VNET_API_ERROR_UNSPECIFIED:
error =
clib_error_return (0, "NAT address used in static mapping.");
goto done;
case VNET_API_ERROR_FEATURE_DISABLED:
error =
clib_error_return (0,
"twice NAT available only for endpoint-dependent mode.");
goto done;
default:
break;
}
if (sm->out2in_dpo)
nat44_add_del_address_dpo (this_addr, is_add);
increment_v4_address (&this_addr);
}
done:
unformat_free (line_input);
return error;
}
static clib_error_t *
nat44_show_addresses_command_fn (vlib_main_t * vm, unformat_input_t * input,
vlib_cli_command_t * cmd)
{
snat_main_t *sm = &snat_main;
snat_address_t *ap;
if (sm->deterministic)
return clib_error_return (0, UNSUPPORTED_IN_DET_MODE_STR);
vlib_cli_output (vm, "NAT44 pool addresses:");
/* *INDENT-OFF* */
vec_foreach (ap, sm->addresses)
{
vlib_cli_output (vm, "%U", format_ip4_address, &ap->addr);
if (ap->fib_index != ~0)
vlib_cli_output (vm, " tenant VRF: %u",
fib_table_get(ap->fib_index, FIB_PROTOCOL_IP4)->ft_table_id);
else
vlib_cli_output (vm, " tenant VRF independent");
#define _(N, i, n, s) \
vlib_cli_output (vm, " %d busy %s ports", ap->busy_##n##_ports, s);
foreach_snat_protocol
#undef _
}
vlib_cli_output (vm, "NAT44 twice-nat pool addresses:");
vec_foreach (ap, sm->twice_nat_addresses)
{
vlib_cli_output (vm, "%U", format_ip4_address, &ap->addr);
if (ap->fib_index != ~0)
vlib_cli_output (vm, " tenant VRF: %u",
fib_table_get(ap->fib_index, FIB_PROTOCOL_IP4)->ft_table_id);
else
vlib_cli_output (vm, " tenant VRF independent");
#define _(N, i, n, s) \
vlib_cli_output (vm, " %d busy %s ports", ap->busy_##n##_ports, s);
foreach_snat_protocol
#undef _
}
/* *INDENT-ON* */
return 0;
}
static clib_error_t *
snat_feature_command_fn (vlib_main_t * vm,
unformat_input_t * input, vlib_cli_command_t * cmd)
{
unformat_input_t _line_input, *line_input = &_line_input;
vnet_main_t *vnm = vnet_get_main ();
clib_error_t *error = 0;
u32 sw_if_index;
u32 *inside_sw_if_indices = 0;
u32 *outside_sw_if_indices = 0;
u8 is_output_feature = 0;
int is_del = 0;
int i;
sw_if_index = ~0;
/* Get a line of input. */
if (!unformat_user (input, unformat_line_input, line_input))
return 0;
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (line_input, "in %U", unformat_vnet_sw_interface,
vnm, &sw_if_index))
vec_add1 (inside_sw_if_indices, sw_if_index);
else if (unformat (line_input, "out %U", unformat_vnet_sw_interface,
vnm, &sw_if_index))
vec_add1 (outside_sw_if_indices, sw_if_index);
else if (unformat (line_input, "output-feature"))
is_output_feature = 1;
else if (unformat (line_input, "del"))
is_del = 1;
else
{
error = clib_error_return (0, "unknown input '%U'",
format_unformat_error, line_input);
goto done;
}
}
if (vec_len (inside_sw_if_indices))
{
for (i = 0; i < vec_len (inside_sw_if_indices); i++)
{
sw_if_index = inside_sw_if_indices[i];
if (is_output_feature)
{
if (snat_interface_add_del_output_feature
(sw_if_index, 1, is_del))
{
error = clib_error_return (0, "%s %U failed",
is_del ? "del" : "add",
format_vnet_sw_if_index_name,
vnm, sw_if_index);
goto done;
}
}
else
{
if (snat_interface_add_del (sw_if_index, 1, is_del))
{
error = clib_error_return (0, "%s %U failed",
is_del ? "del" : "add",
format_vnet_sw_if_index_name,
vnm, sw_if_index);
goto done;
}
}
}
}
if (vec_len (outside_sw_if_indices))
{
for (i = 0; i < vec_len (outside_sw_if_indices); i++)
{
sw_if_index = outside_sw_if_indices[i];
if (is_output_feature)
{
if (snat_interface_add_del_output_feature
(sw_if_index, 0, is_del))
{
error = clib_error_return (0, "%s %U failed",
is_del ? "del" : "add",
format_vnet_sw_if_index_name,
vnm, sw_if_index);
goto done;
}
}
else
{
if (snat_interface_add_del (sw_if_index, 0, is_del))
{
error = clib_error_return (0, "%s %U failed",
is_del ? "del" : "add",
format_vnet_sw_if_index_name,
vnm, sw_if_index);
goto done;
}
}
}
}
done:
unformat_free (line_input);
vec_free (inside_sw_if_indices);
vec_free (outside_sw_if_indices);
return error;
}
static clib_error_t *
nat44_show_interfaces_command_fn (vlib_main_t * vm, unformat_input_t * input,
vlib_cli_command_t * cmd)
{
snat_main_t *sm = &snat_main;
snat_interface_t *i;
vnet_main_t *vnm = vnet_get_main ();
vlib_cli_output (vm, "NAT44 interfaces:");
/* *INDENT-OFF* */
pool_foreach (i, sm->interfaces,
({
vlib_cli_output (vm, " %U %s", format_vnet_sw_if_index_name, vnm,
i->sw_if_index,
(nat_interface_is_inside(i) &&
nat_interface_is_outside(i)) ? "in out" :
(nat_interface_is_inside(i) ? "in" : "out"));
}));
pool_foreach (i, sm->output_feature_interfaces,
({
vlib_cli_output (vm, " %U output-feature %s",
format_vnet_sw_if_index_name, vnm,
i->sw_if_index,
(nat_interface_is_inside(i) &&
nat_interface_is_outside(i)) ? "in out" :
(nat_interface_is_inside(i) ? "in" : "out"));
}));
/* *INDENT-ON* */
return 0;
}
static clib_error_t *
add_static_mapping_command_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
unformat_input_t _line_input, *line_input = &_line_input;
snat_main_t *sm = &snat_main;
clib_error_t *error = 0;
ip4_address_t l_addr, e_addr;
u32 l_port = 0, e_port = 0, vrf_id = ~0;
int is_add = 1;
int addr_only = 1;
u32 sw_if_index = ~0;
vnet_main_t *vnm = vnet_get_main ();
int rv;
snat_protocol_t proto = ~0;
u8 proto_set = 0;
twice_nat_type_t twice_nat = TWICE_NAT_DISABLED;
u8 out2in_only = 0;
if (sm->deterministic)
return clib_error_return (0, UNSUPPORTED_IN_DET_MODE_STR);
/* Get a line of input. */
if (!unformat_user (input, unformat_line_input, line_input))
return 0;
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (line_input, "local %U %u", unformat_ip4_address, &l_addr,
&l_port))
addr_only = 0;
else
if (unformat (line_input, "local %U", unformat_ip4_address, &l_addr))
;
else if (unformat (line_input, "external %U %u", unformat_ip4_address,
&e_addr, &e_port))
addr_only = 0;
else if (unformat (line_input, "external %U", unformat_ip4_address,
&e_addr))
;
else if (unformat (line_input, "external %U %u",
unformat_vnet_sw_interface, vnm, &sw_if_index,
&e_port))
addr_only = 0;
else if (unformat (line_input, "external %U",
unformat_vnet_sw_interface, vnm, &sw_if_index))
;
else if (unformat (line_input, "vrf %u", &vrf_id))
;
else if (unformat (line_input, "%U", unformat_snat_protocol, &proto))
proto_set = 1;
else if (unformat (line_input, "twice-nat"))
twice_nat = TWICE_NAT;
else if (unformat (line_input, "self-twice-nat"))
twice_nat = TWICE_NAT_SELF;
else if (unformat (line_input, "out2in-only"))
out2in_only = 1;
else if (unformat (line_input, "del"))
is_add = 0;
else
{
error = clib_error_return (0, "unknown input: '%U'",
format_unformat_error, line_input);
goto done;
}
}
if (twice_nat && addr_only)
{
error = clib_error_return (0, "twice NAT only for 1:1 NAPT");
goto done;
}
if (!addr_only && !proto_set)
{
error = clib_error_return (0, "missing protocol");
goto done;
}
rv = snat_add_static_mapping (l_addr, e_addr, (u16) l_port, (u16) e_port,
vrf_id, addr_only, sw_if_index, proto, is_add,
twice_nat, out2in_only, 0, 0);
switch (rv)
{
case VNET_API_ERROR_INVALID_VALUE:
error = clib_error_return (0, "External port already in use.");
goto done;
case VNET_API_ERROR_NO_SUCH_ENTRY:
if (is_add)
error = clib_error_return (0, "External address must be allocated.");
else
error = clib_error_return (0, "Mapping not exist.");
goto done;
case VNET_API_ERROR_NO_SUCH_FIB:
error = clib_error_return (0, "No such VRF id.");
goto done;
case VNET_API_ERROR_VALUE_EXIST:
error = clib_error_return (0, "Mapping already exist.");
goto done;
case VNET_API_ERROR_FEATURE_DISABLED:
error =
clib_error_return (0,
"twice-nat/out2in-only available only for endpoint-dependent mode.");
goto done;
default:
break;
}
done:
unformat_free (line_input);
return error;
}
static clib_error_t *
add_identity_mapping_command_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
unformat_input_t _line_input, *line_input = &_line_input;
snat_main_t *sm = &snat_main;
clib_error_t *error = 0;
ip4_address_t addr;
u32 port = 0, vrf_id = ~0;
int is_add = 1;
int addr_only = 1;
u32 sw_if_index = ~0;
vnet_main_t *vnm = vnet_get_main ();
int rv;
snat_protocol_t proto;
if (sm->deterministic)
return clib_error_return (0, UNSUPPORTED_IN_DET_MODE_STR);
addr.as_u32 = 0;
/* Get a line of input. */
if (!unformat_user (input, unformat_line_input, line_input))
return 0;
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (line_input, "%U", unformat_ip4_address, &addr))
;
else if (unformat (line_input, "external %U",
unformat_vnet_sw_interface, vnm, &sw_if_index))
;
else if (unformat (line_input, "vrf %u", &vrf_id))
;
else if (unformat (line_input, "%U %u", unformat_snat_protocol, &proto,
&port))
addr_only = 0;
else if (unformat (line_input, "del"))
is_add = 0;
else
{
error = clib_error_return (0, "unknown input: '%U'",
format_unformat_error, line_input);
goto done;
}
}
rv = snat_add_static_mapping (addr, addr, (u16) port, (u16) port,
vrf_id, addr_only, sw_if_index, proto, is_add,
0, 0, 0, 1);
switch (rv)
{
case VNET_API_ERROR_INVALID_VALUE:
error = clib_error_return (0, "External port already in use.");
goto done;
case VNET_API_ERROR_NO_SUCH_ENTRY:
if (is_add)
error = clib_error_return (0, "External address must be allocated.");
else
error = clib_error_return (0, "Mapping not exist.");
goto done;
case VNET_API_ERROR_NO_SUCH_FIB:
error = clib_error_return (0, "No such VRF id.");
goto done;
case VNET_API_ERROR_VALUE_EXIST:
error = clib_error_return (0, "Mapping already exist.");
goto done;
default:
break;
}
done:
unformat_free (line_input);
return error;
}
static clib_error_t *
add_lb_static_mapping_command_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
unformat_input_t _line_input, *line_input = &_line_input;
snat_main_t *sm = &snat_main;
clib_error_t *error = 0;
ip4_address_t l_addr, e_addr;
u32 l_port = 0, e_port = 0, vrf_id = 0, probability = 0, affinity = 0;
int is_add = 1;
int rv;
snat_protocol_t proto;
u8 proto_set = 0;
nat44_lb_addr_port_t *locals = 0, local;
twice_nat_type_t twice_nat = TWICE_NAT_DISABLED;
u8 out2in_only = 0;
if (sm->deterministic)
return clib_error_return (0, UNSUPPORTED_IN_DET_MODE_STR);
/* Get a line of input. */
if (!unformat_user (input, unformat_line_input, line_input))
return 0;
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (line_input, "local %U:%u probability %u",
unformat_ip4_address, &l_addr, &l_port, &probability))
{
clib_memset (&local, 0, sizeof (local));
local.addr = l_addr;
local.port = (u16) l_port;
local.probability = (u8) probability;
vec_add1 (locals, local);
}
else if (unformat (line_input, "local %U:%u vrf %u probability %u",
unformat_ip4_address, &l_addr, &l_port, &vrf_id,
&probability))
{
clib_memset (&local, 0, sizeof (local));
local.addr = l_addr;
local.port = (u16) l_port;
local.probability = (u8) probability;
local.vrf_id = vrf_id;
vec_add1 (locals, local);
}
else if (unformat (line_input, "external %U:%u", unformat_ip4_address,
&e_addr, &e_port))
;
else if (unformat (line_input, "protocol %U", unformat_snat_protocol,
&proto))
proto_set = 1;
else if (unformat (line_input, "twice-nat"))
twice_nat = TWICE_NAT;
else if (unformat (line_input, "self-twice-nat"))
twice_nat = TWICE_NAT_SELF;
else if (unformat (line_input, "out2in-only"))
out2in_only = 1;
else if (unformat (line_input, "del"))
is_add = 0;
else if (unformat (line_input, "affinity %u", &affinity))
;
else
{
error = clib_error_return (0, "unknown input: '%U'",
format_unformat_error, line_input);
goto done;
}
}
if (vec_len (locals) < 2)
{
error = clib_error_return (0, "at least two local must be set");
goto done;
}
if (!proto_set)
{
error = clib_error_return (0, "missing protocol");
goto done;
}
rv = nat44_add_del_lb_static_mapping (e_addr, (u16) e_port, proto, locals,
is_add, twice_nat, out2in_only, 0,
affinity);
switch (rv)
{
case VNET_API_ERROR_INVALID_VALUE:
error = clib_error_return (0, "External port already in use.");
goto done;
case VNET_API_ERROR_NO_SUCH_ENTRY:
if (is_add)
error = clib_error_return (0, "External address must be allocated.");
else
error = clib_error_return (0, "Mapping not exist.");
goto done;
case VNET_API_ERROR_VALUE_EXIST:
error = clib_error_return (0, "Mapping already exist.");
goto done;
case VNET_API_ERROR_FEATURE_DISABLED:
error =
clib_error_return (0, "Available only for endpoint-dependent mode.");
goto done;
default:
break;
}
done:
unformat_free (line_input);
vec_free (locals);
return error;
}
static clib_error_t *
add_lb_backend_command_fn (vlib_main_t * vm,
unformat_input_t * input, vlib_cli_command_t * cmd)
{
unformat_input_t _line_input, *line_input = &_line_input;
snat_main_t *sm = &snat_main;
clib_error_t *error = 0;
ip4_address_t l_addr, e_addr;
u32 l_port = 0, e_port = 0, vrf_id = 0, probability = 0;
int is_add = 1;
int rv;
snat_protocol_t proto;
u8 proto_set = 0;
if (sm->deterministic)
return clib_error_return (0, UNSUPPORTED_IN_DET_MODE_STR);
/* Get a line of input. */
if (!unformat_user (input, unformat_line_input, line_input))
return 0;
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (line_input, "local %U:%u probability %u",
unformat_ip4_address, &l_addr, &l_port, &probability))
;
else if (unformat (line_input, "local %U:%u vrf %u probability %u",
unformat_ip4_address, &l_addr, &l_port, &vrf_id,
&probability))
;
else if (unformat (line_input, "external %U:%u", unformat_ip4_address,
&e_addr, &e_port))
;
else if (unformat (line_input, "protocol %U", unformat_snat_protocol,
&proto))
proto_set = 1;
else if (unformat (line_input, "del"))
is_add = 0;
else
{
error = clib_error_return (0, "unknown input: '%U'",
format_unformat_error, line_input);
goto done;
}
}
if (!l_port || !e_port)
{
error = clib_error_return (0, "local or external must be set");
goto done;
}
if (!proto_set)
{
error = clib_error_return (0, "missing protocol");
goto done;
}
rv =
nat44_lb_static_mapping_add_del_local (e_addr, (u16) e_port, l_addr,
l_port, proto, vrf_id, probability,
is_add);
switch (rv)
{
case VNET_API_ERROR_INVALID_VALUE:
error = clib_error_return (0, "External is not load-balancing static "
"mapping.");
goto done;
case VNET_API_ERROR_NO_SUCH_ENTRY:
error = clib_error_return (0, "Mapping or back-end not exist.");
goto done;
case VNET_API_ERROR_VALUE_EXIST:
error = clib_error_return (0, "Back-end already exist.");
goto done;
case VNET_API_ERROR_FEATURE_DISABLED:
error =
clib_error_return (0, "Available only for endpoint-dependent mode.");
goto done;
case VNET_API_ERROR_UNSPECIFIED:
error = clib_error_return (0, "At least two back-ends must remain");
goto done;
default:
break;
}
done:
unformat_free (line_input);
return error;
}
static clib_error_t *
nat44_show_static_mappings_command_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
snat_main_t *sm = &snat_main;
snat_static_mapping_t *m;
snat_static_map_resolve_t *rp;
if (sm->deterministic)
return clib_error_return (0, UNSUPPORTED_IN_DET_MODE_STR);
vlib_cli_output (vm, "NAT44 static mappings:");
/* *INDENT-OFF* */
pool_foreach (m, sm->static_mappings,
({
vlib_cli_output (vm, " %U", format_snat_static_mapping, m);
}));
vec_foreach (rp, sm->to_resolve)
vlib_cli_output (vm, " %U", format_snat_static_map_to_resolve, rp);
/* *INDENT-ON* */
return 0;
}
static clib_error_t *
snat_add_interface_address_command_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
snat_main_t *sm = &snat_main;
unformat_input_t _line_input, *line_input = &_line_input;
u32 sw_if_index;
int rv;
int is_del = 0;
clib_error_t *error = 0;
u8 twice_nat = 0;
if (sm->deterministic)
return clib_error_return (0, UNSUPPORTED_IN_DET_MODE_STR);
/* Get a line of input. */
if (!unformat_user (input, unformat_line_input, line_input))
return 0;
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (line_input, "%U", unformat_vnet_sw_interface,
sm->vnet_main, &sw_if_index))
;
else if (unformat (line_input, "twice-nat"))
twice_nat = 1;
else if (unformat (line_input, "del"))
is_del = 1;
else
{
error = clib_error_return (0, "unknown input '%U'",
format_unformat_error, line_input);
goto done;
}
}
rv = snat_add_interface_address (sm, sw_if_index, is_del, twice_nat);
switch (rv)
{
case 0:
break;
default:
error = clib_error_return (0, "snat_add_interface_address returned %d",
rv);
goto done;
}
done:
unformat_free (line_input);
return error;
}
static clib_error_t *
nat44_show_interface_address_command_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
snat_main_t *sm = &snat_main;
vnet_main_t *vnm = vnet_get_main ();
u32 *sw_if_index;
if (sm->deterministic)
return clib_error_return (0, UNSUPPORTED_IN_DET_MODE_STR);
/* *INDENT-OFF* */
vlib_cli_output (vm, "NAT44 pool address interfaces:");
vec_foreach (sw_if_index, sm->auto_add_sw_if_indices)
{
vlib_cli_output (vm, " %U", format_vnet_sw_if_index_name, vnm,
*sw_if_index);
}
vlib_cli_output (vm, "NAT44 twice-nat pool address interfaces:");
vec_foreach (sw_if_index, sm->auto_add_sw_if_indices_twice_nat)
{
vlib_cli_output (vm, " %U", format_vnet_sw_if_index_name, vnm,
*sw_if_index);
}
/* *INDENT-ON* */
return 0;
}
static clib_error_t *
nat44_show_sessions_command_fn (vlib_main_t * vm, unformat_input_t * input,
vlib_cli_command_t * cmd)
{
int verbose = 0;
snat_main_t *sm = &snat_main;
snat_main_per_thread_data_t *tsm;
snat_user_t *u;
int i = 0;
if (sm->deterministic)
return clib_error_return (0, UNSUPPORTED_IN_DET_MODE_STR);
if (unformat (input, "detail"))
verbose = 1;
vlib_cli_output (vm, "NAT44 sessions:");
/* *INDENT-OFF* */
vec_foreach_index (i, sm->per_thread_data)
{
tsm = vec_elt_at_index (sm->per_thread_data, i);
vlib_cli_output (vm, "-------- thread %d %s: %d sessions --------\n",
i, vlib_worker_threads[i].name,
pool_elts (tsm->sessions));
pool_foreach (u, tsm->users,
({
vlib_cli_output (vm, " %U", format_snat_user, tsm, u, verbose);
}));
}
/* *INDENT-ON* */
return 0;
}
static clib_error_t *
nat44_del_session_command_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
snat_main_t *sm = &snat_main;
unformat_input_t _line_input, *line_input = &_line_input;
int is_in = 0, is_ed = 0;
clib_error_t *error = 0;
ip4_address_t addr, eh_addr;
u32 port = 0, eh_port = 0, vrf_id = sm->outside_vrf_id;
snat_protocol_t proto;
int rv;
if (sm->deterministic)
return clib_error_return (0, UNSUPPORTED_IN_DET_MODE_STR);
/* Get a line of input. */
if (!unformat_user (input, unformat_line_input, line_input))
return 0;
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (unformat
(line_input, "%U:%u %U", unformat_ip4_address, &addr, &port,
unformat_snat_protocol, &proto))
;
else if (unformat (line_input, "in"))
{
is_in = 1;
vrf_id = sm->inside_vrf_id;
}
else if (unformat (line_input, "out"))
{
is_in = 0;
vrf_id = sm->outside_vrf_id;
}
else if (unformat (line_input, "vrf %u", &vrf_id))
;
else
if (unformat
(line_input, "external-host %U:%u", unformat_ip4_address,
&eh_addr, &eh_port))
is_ed = 1;
else
{
error = clib_error_return (0, "unknown input '%U'",
format_unformat_error, line_input);
goto done;
}
}
if (is_ed)
rv =
nat44_del_ed_session (sm, &addr, port, &eh_addr, eh_port,
snat_proto_to_ip_proto (proto), vrf_id, is_in);
else
rv = nat44_del_session (sm, &addr, port, proto, vrf_id, is_in);
switch (rv)
{
case 0:
break;
default:
error = clib_error_return (0, "nat44_del_session returned %d", rv);
goto done;
}
done:
unformat_free (line_input);
return error;
}
static clib_error_t *
snat_forwarding_set_command_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
snat_main_t *sm = &snat_main;
unformat_input_t _line_input, *line_input = &_line_input;
u8 forwarding_enable;
u8 forwarding_enable_set = 0;
clib_error_t *error = 0;
if (sm->deterministic)
return clib_error_return (0, UNSUPPORTED_IN_DET_MODE_STR);
/* Get a line of input. */
if (!unformat_user (input, unformat_line_input, line_input))
return clib_error_return (0, "'enable' or 'disable' expected");
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (!forwarding_enable_set && unformat (line_input, "enable"))
{
forwarding_enable = 1;
forwarding_enable_set = 1;
}
else if (!forwarding_enable_set && unformat (line_input, "disable"))
{
forwarding_enable = 0;
forwarding_enable_set = 1;
}
else
{
error = clib_error_return (0, "unknown input '%U'",
format_unformat_error, line_input);
goto done;
}
}
if (!forwarding_enable_set)
{
error = clib_error_return (0, "'enable' or 'disable' expected");
goto done;
}
sm->forwarding_enabled = forwarding_enable;
done:
unformat_free (line_input);
return error;
}
static clib_error_t *
snat_det_map_command_fn (vlib_main_t * vm,
unformat_input_t * input, vlib_cli_command_t * cmd)
{
snat_main_t *sm = &snat_main;
unformat_input_t _line_input, *line_input = &_line_input;
ip4_address_t in_addr, out_addr;
u32 in_plen, out_plen;
int is_add = 1, rv;
clib_error_t *error = 0;
if (!sm->deterministic)
return clib_error_return (0, SUPPORTED_ONLY_IN_DET_MODE_STR);
/* Get a line of input. */
if (!unformat_user (input, unformat_line_input, line_input))
return 0;
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (unformat
(line_input, "in %U/%u", unformat_ip4_address, &in_addr, &in_plen))
;
else
if (unformat
(line_input, "out %U/%u", unformat_ip4_address, &out_addr,
&out_plen))
;
else if (unformat (line_input, "del"))
is_add = 0;
else
{
error = clib_error_return (0, "unknown input '%U'",
format_unformat_error, line_input);
goto done;
}
}
rv = snat_det_add_map (sm, &in_addr, (u8) in_plen, &out_addr, (u8) out_plen,
is_add);
if (rv)
{
error = clib_error_return (0, "snat_det_add_map return %d", rv);
goto done;
}
done:
unformat_free (line_input);
return error;
}
static clib_error_t *
nat44_det_show_mappings_command_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
snat_main_t *sm = &snat_main;
snat_det_map_t *dm;
if (!sm->deterministic)
return clib_error_return (0, SUPPORTED_ONLY_IN_DET_MODE_STR);
vlib_cli_output (vm, "NAT44 deterministic mappings:");
/* *INDENT-OFF* */
pool_foreach (dm, sm->det_maps,
({
vlib_cli_output (vm, " in %U/%d out %U/%d\n",
format_ip4_address, &dm->in_addr, dm->in_plen,
format_ip4_address, &dm->out_addr, dm->out_plen);
vlib_cli_output (vm, " outside address sharing ratio: %d\n",
dm->sharing_ratio);
vlib_cli_output (vm, " number of ports per inside host: %d\n",
dm->ports_per_host);
vlib_cli_output (vm, " sessions number: %d\n", dm->ses_num);
}));
/* *INDENT-ON* */
return 0;
}
static clib_error_t *
snat_det_forward_command_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
snat_main_t *sm = &snat_main;
unformat_input_t _line_input, *line_input = &_line_input;
ip4_address_t in_addr, out_addr;
u16 lo_port;
snat_det_map_t *dm;
clib_error_t *error = 0;
if (!sm->deterministic)
return clib_error_return (0, SUPPORTED_ONLY_IN_DET_MODE_STR);
/* Get a line of input. */
if (!unformat_user (input, unformat_line_input, line_input))
return 0;
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (line_input, "%U", unformat_ip4_address, &in_addr))
;
else
{
error = clib_error_return (0, "unknown input '%U'",
format_unformat_error, line_input);
goto done;
}
}
dm = snat_det_map_by_user (sm, &in_addr);
if (!dm)
vlib_cli_output (vm, "no match");
else
{
snat_det_forward (dm, &in_addr, &out_addr, &lo_port);
vlib_cli_output (vm, "%U:<%d-%d>", format_ip4_address, &out_addr,
lo_port, lo_port + dm->ports_per_host - 1);
}
done:
unformat_free (line_input);
return error;
}
static clib_error_t *
snat_det_reverse_command_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
snat_main_t *sm = &snat_main;
unformat_input_t _line_input, *line_input = &_line_input;
ip4_address_t in_addr, out_addr;
u32 out_port;
snat_det_map_t *dm;
clib_error_t *error = 0;
if (!sm->deterministic)
return clib_error_return (0, SUPPORTED_ONLY_IN_DET_MODE_STR);
/* Get a line of input. */
if (!unformat_user (input, unformat_line_input, line_input))
return 0;
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (unformat
(line_input, "%U:%d", unformat_ip4_address, &out_addr, &out_port))
;
else
{
error = clib_error_return (0, "unknown input '%U'",
format_unformat_error, line_input);
goto done;
}
}
if (out_port < 1024 || out_port > 65535)
{
error = clib_error_return (0, "wrong port, must be <1024-65535>");
goto done;
}
dm = snat_det_map_by_out (sm, &out_addr);
if (!dm)
vlib_cli_output (vm, "no match");
else
{
snat_det_reverse (dm, &out_addr, (u16) out_port, &in_addr);
vlib_cli_output (vm, "%U", format_ip4_address, &in_addr);
}
done:
unformat_free (line_input);
return error;
}
static clib_error_t *
set_timeout_command_fn (vlib_main_t * vm,
unformat_input_t * input, vlib_cli_command_t * cmd)
{
snat_main_t *sm = &snat_main;
unformat_input_t _line_input, *line_input = &_line_input;
clib_error_t *error = 0;
/* Get a line of input. */
if (!unformat_user (input, unformat_line_input, line_input))
return 0;
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (line_input, "udp %u", &sm->udp_timeout))
{
if (nat64_set_udp_timeout (sm->udp_timeout))
{
error = clib_error_return (0, "Invalid UDP timeout value");
goto done;
}
}
else if (unformat (line_input, "tcp-established %u",
&sm->tcp_established_timeout))
{
if (nat64_set_tcp_timeouts
(sm->tcp_transitory_timeout, sm->tcp_established_timeout))
{
error =
clib_error_return (0,
"Invalid TCP established timeouts value");
goto done;
}
}
else if (unformat (line_input, "tcp-transitory %u",
&sm->tcp_transitory_timeout))
{
if (nat64_set_tcp_timeouts
(sm->tcp_transitory_timeout, sm->tcp_established_timeout))
{
error =
clib_error_return (0,
"Invalid TCP transitory timeouts value");
goto done;
}
}
else if (unformat (line_input, "icmp %u", &sm->icmp_timeout))
{
if (nat64_set_icmp_timeout (sm->icmp_timeout))
{
error = clib_error_return (0, "Invalid ICMP timeout value");
goto done;
}
}
else if (unformat (line_input, "reset"))
{
sm->udp_timeout = SNAT_UDP_TIMEOUT;
sm->tcp_established_timeout = SNAT_TCP_ESTABLISHED_TIMEOUT;
sm->tcp_transitory_timeout = SNAT_TCP_TRANSITORY_TIMEOUT;
sm->icmp_timeout = SNAT_ICMP_TIMEOUT;
nat64_set_udp_timeout (0);
nat64_set_icmp_timeout (0);
nat64_set_tcp_timeouts (0, 0);
}
else
{
error = clib_error_return (0, "unknown input '%U'",
format_unformat_error, line_input);
goto done;
}
}
done:
unformat_free (line_input);
return error;
}
static clib_error_t *
nat_show_timeouts_command_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
snat_main_t *sm = &snat_main;
vlib_cli_output (vm, "udp timeout: %dsec", sm->udp_timeout);
vlib_cli_output (vm, "tcp-established timeout: %dsec",
sm->tcp_established_timeout);
vlib_cli_output (vm, "tcp-transitory timeout: %dsec",
sm->tcp_transitory_timeout);
vlib_cli_output (vm, "icmp timeout: %dsec", sm->icmp_timeout);
return 0;
}
static clib_error_t *
nat44_det_show_sessions_command_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
snat_main_t *sm = &snat_main;
snat_det_map_t *dm;
snat_det_session_t *ses;
int i;
if (!sm->deterministic)
return clib_error_return (0, SUPPORTED_ONLY_IN_DET_MODE_STR);
vlib_cli_output (vm, "NAT44 deterministic sessions:");
/* *INDENT-OFF* */
pool_foreach (dm, sm->det_maps,
({
vec_foreach_index (i, dm->sessions)
{
ses = vec_elt_at_index (dm->sessions, i);
if (ses->in_port)
vlib_cli_output (vm, " %U", format_det_map_ses, dm, ses, &i);
}
}));
/* *INDENT-ON* */
return 0;
}
static clib_error_t *
snat_det_close_session_out_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
snat_main_t *sm = &snat_main;
unformat_input_t _line_input, *line_input = &_line_input;
ip4_address_t out_addr, ext_addr, in_addr;
u32 out_port, ext_port;
snat_det_map_t *dm;
snat_det_session_t *ses;
snat_det_out_key_t key;
clib_error_t *error = 0;
if (!sm->deterministic)
return clib_error_return (0, SUPPORTED_ONLY_IN_DET_MODE_STR);
/* Get a line of input. */
if (!unformat_user (input, unformat_line_input, line_input))
return 0;
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (line_input, "%U:%d %U:%d",
unformat_ip4_address, &out_addr, &out_port,
unformat_ip4_address, &ext_addr, &ext_port))
;
else
{
error = clib_error_return (0, "unknown input '%U'",
format_unformat_error, line_input);
goto done;
}
}
unformat_free (line_input);
dm = snat_det_map_by_out (sm, &out_addr);
if (!dm)
vlib_cli_output (vm, "no match");
else
{
snat_det_reverse (dm, &ext_addr, (u16) out_port, &in_addr);
key.ext_host_addr = out_addr;
key.ext_host_port = ntohs ((u16) ext_port);
key.out_port = ntohs ((u16) out_port);
ses = snat_det_get_ses_by_out (dm, &out_addr, key.as_u64);
if (!ses)
vlib_cli_output (vm, "no match");
else
snat_det_ses_close (dm, ses);
}
done:
unformat_free (line_input);
return error;
}
static clib_error_t *
snat_det_close_session_in_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
snat_main_t *sm = &snat_main;
unformat_input_t _line_input, *line_input = &_line_input;
ip4_address_t in_addr, ext_addr;
u32 in_port, ext_port;
snat_det_map_t *dm;
snat_det_session_t *ses;
snat_det_out_key_t key;
clib_error_t *error = 0;
if (!sm->deterministic)
return clib_error_return (0, SUPPORTED_ONLY_IN_DET_MODE_STR);
/* Get a line of input. */
if (!unformat_user (input, unformat_line_input, line_input))
return 0;
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (line_input, "%U:%d %U:%d",
unformat_ip4_address, &in_addr, &in_port,
unformat_ip4_address, &ext_addr, &ext_port))
;
else
{
error = clib_error_return (0, "unknown input '%U'",
format_unformat_error, line_input);
goto done;
}
}
unformat_free (line_input);
dm = snat_det_map_by_user (sm, &in_addr);
if (!dm)
vlib_cli_output (vm, "no match");
else
{
key.ext_host_addr = ext_addr;
key.ext_host_port = ntohs ((u16) ext_port);
ses =
snat_det_find_ses_by_in (dm, &in_addr, ntohs ((u16) in_port), key);
if (!ses)
vlib_cli_output (vm, "no match");
else
snat_det_ses_close (dm, ses);
}
done:
unformat_free (line_input);
return error;
}
/* *INDENT-OFF* */
/*?
* @cliexpar
* @cliexstart{set snat workers}
* Set NAT workers if 2 or more workers available, use:
* vpp# set snat workers 0-2,5
* @cliexend
?*/
VLIB_CLI_COMMAND (set_workers_command, static) = {
.path = "set nat workers",
.function = set_workers_command_fn,
.short_help = "set nat workers <workers-list>",
};
/*?
* @cliexpar
* @cliexstart{show nat workers}
* Show NAT workers.
* vpp# show nat workers:
* 2 workers
* vpp_wk_0
* vpp_wk_1
* @cliexend
?*/
VLIB_CLI_COMMAND (nat_show_workers_command, static) = {
.path = "show nat workers",
.short_help = "show nat workers",
.function = nat_show_workers_commnad_fn,
};
/*?
* @cliexpar
* @cliexstart{set nat timeout}
* Set values of timeouts for NAT sessions (in seconds), use:
* vpp# set nat timeout udp 120 tcp-established 7500 tcp-transitory 250 icmp 90
* To reset default values use:
* vpp# set nat44 deterministic timeout reset
* @cliexend
?*/
VLIB_CLI_COMMAND (set_timeout_command, static) = {
.path = "set nat timeout",
.function = set_timeout_command_fn,
.short_help =
"set nat timeout [udp <sec> | tcp-established <sec> "
"tcp-transitory <sec> | icmp <sec> | reset]",
};
/*?
* @cliexpar
* @cliexstart{show nat timeouts}
* Show values of timeouts for NAT sessions.
* vpp# show nat timeouts
* udp timeout: 300sec
* tcp-established timeout: 7440sec
* tcp-transitory timeout: 240sec
* icmp timeout: 60sec
* @cliexend
?*/
VLIB_CLI_COMMAND (nat_show_timeouts_command, static) = {
.path = "show nat timeouts",
.short_help = "show nat timeouts",
.function = nat_show_timeouts_command_fn,
};
/*?
* @cliexpar
* @cliexstart{snat ipfix logging}
* To enable NAT IPFIX logging use:
* vpp# nat ipfix logging
* To set IPFIX exporter use:
* vpp# set ipfix exporter collector 10.10.10.3 src 10.10.10.1
* @cliexend
?*/
VLIB_CLI_COMMAND (snat_ipfix_logging_enable_disable_command, static) = {
.path = "nat ipfix logging",
.function = snat_ipfix_logging_enable_disable_command_fn,
.short_help = "nat ipfix logging [domain <domain-id>] [src-port <port>] [disable]",
};
/*?
* @cliexpar
* @cliexstart{nat addr-port-assignment-alg}
* Set address and port assignment algorithm
* For the MAP-E CE limit port choice based on PSID use:
* vpp# nat addr-port-assignment-alg map-e psid 10 psid-offset 6 psid-len 6
* For port range use:
* vpp# nat addr-port-assignment-alg port-range <start-port> - <end-port>
* To set standard (default) address and port assignment algorithm use:
* vpp# nat addr-port-assignment-alg default
* @cliexend
?*/
VLIB_CLI_COMMAND (nat44_set_alloc_addr_and_port_alg_command, static) = {
.path = "nat addr-port-assignment-alg",
.short_help = "nat addr-port-assignment-alg <alg-name> [<alg-params>]",
.function = nat44_set_alloc_addr_and_port_alg_command_fn,
};
/*?
* @cliexpar
* @cliexstart{show nat addr-port-assignment-alg}
* Show address and port assignment algorithm
* @cliexend
?*/
VLIB_CLI_COMMAND (nat44_show_alloc_addr_and_port_alg_command, static) = {
.path = "show nat addr-port-assignment-alg",
.short_help = "show nat addr-port-assignment-alg",
.function = nat44_show_alloc_addr_and_port_alg_command_fn,
};
/*?
* @cliexpar
* @cliexstart{nat mss-clamping}
* Set TCP MSS rewriting configuration
* To enable TCP MSS rewriting use:
* vpp# nat mss-clamping 1452
* To disbale TCP MSS rewriting use:
* vpp# nat mss-clamping disable
* @cliexend
?*/
VLIB_CLI_COMMAND (nat_set_mss_clamping_command, static) = {
.path = "nat mss-clamping",
.short_help = "nat mss-clamping <mss-value>|disable",
.function = nat_set_mss_clamping_command_fn,
};
/*?
* @cliexpar
* @cliexstart{show nat mss-clamping}
* Show TCP MSS rewriting configuration
* @cliexend
?*/
VLIB_CLI_COMMAND (nat_show_mss_clamping_command, static) = {
.path = "show nat mss-clamping",
.short_help = "show nat mss-clamping",
.function = nat_show_mss_clamping_command_fn,
};
/*?
* @cliexpar
* @cliexstart{nat ha failover}
* Set HA failover (remote settings)
* @cliexend
?*/
VLIB_CLI_COMMAND (nat_ha_failover_command, static) = {
.path = "nat ha failover",
.short_help = "nat ha failover <ip4-address>:<port> [refresh-intervval <sec>]",
.function = nat_ha_failover_command_fn,
};
/*?
* @cliexpar
* @cliexstart{nat ha listener}
* Set HA listener (local settings)
* @cliexend
?*/
VLIB_CLI_COMMAND (nat_ha_listener_command, static) = {
.path = "nat ha listener",
.short_help = "nat ha listener <ip4-address>:<port> [path-mtu <path-mtu>]",
.function = nat_ha_listener_command_fn,
};
/*?
* @cliexpar
* @cliexstart{show nat ha}
* Show HA configuration/status
* @cliexend
?*/
VLIB_CLI_COMMAND (nat_show_ha_command, static) = {
.path = "show nat ha",
.short_help = "show nat ha",
.function = nat_show_ha_command_fn,
};
/*?
* @cliexpar
* @cliexstart{nat ha flush}
* Flush the current HA data (for testing)
* @cliexend
?*/
VLIB_CLI_COMMAND (nat_ha_flush_command, static) = {
.path = "nat ha flush",
.short_help = "nat ha flush",
.function = nat_ha_flush_command_fn,
};
/*?
* @cliexpar
* @cliexstart{nat ha resync}
* Resync HA (resend existing sessions to new failover)
* @cliexend
?*/
VLIB_CLI_COMMAND (nat_ha_resync_command, static) = {
.path = "nat ha resync",
.short_help = "nat ha resync",
.function = nat_ha_resync_command_fn,
};
/*?
* @cliexpar
* @cliexstart{show nat44 hash tables}
* Show NAT44 hash tables
* @cliexend
?*/
VLIB_CLI_COMMAND (nat44_show_hash, static) = {
.path = "show nat44 hash tables",
.short_help = "show nat44 hash tables [detail|verbose]",
.function = nat44_show_hash_commnad_fn,
};
/*?
* @cliexpar
* @cliexstart{nat44 add address}
* Add/delete NAT44 pool address.
* To add NAT44 pool address use:
* vpp# nat44 add address 172.16.1.3
* vpp# nat44 add address 172.16.2.2 - 172.16.2.24
* To add NAT44 pool address for specific tenant (identified by VRF id) use:
* vpp# nat44 add address 172.16.1.3 tenant-vrf 10
* @cliexend
?*/
VLIB_CLI_COMMAND (add_address_command, static) = {
.path = "nat44 add address",
.short_help = "nat44 add address <ip4-range-start> [- <ip4-range-end>] "
"[tenant-vrf <vrf-id>] [twice-nat] [del]",
.function = add_address_command_fn,
};
/*?
* @cliexpar
* @cliexstart{show nat44 addresses}
* Show NAT44 pool addresses.
* vpp# show nat44 addresses
* NAT44 pool addresses:
* 172.16.2.2
* tenant VRF independent
* 10 busy udp ports
* 0 busy tcp ports
* 0 busy icmp ports
* 172.16.1.3
* tenant VRF: 10
* 0 busy udp ports
* 2 busy tcp ports
* 0 busy icmp ports
* NAT44 twice-nat pool addresses:
* 10.20.30.72
* tenant VRF independent
* 0 busy udp ports
* 0 busy tcp ports
* 0 busy icmp ports
* @cliexend
?*/
VLIB_CLI_COMMAND (nat44_show_addresses_command, static) = {
.path = "show nat44 addresses",
.short_help = "show nat44 addresses",
.function = nat44_show_addresses_command_fn,
};
/*?
* @cliexpar
* @cliexstart{set interface nat44}
* Enable/disable NAT44 feature on the interface.
* To enable NAT44 feature with local network interface use:
* vpp# set interface nat44 in GigabitEthernet0/8/0
* To enable NAT44 feature with external network interface use:
* vpp# set interface nat44 out GigabitEthernet0/a/0
* @cliexend
?*/
VLIB_CLI_COMMAND (set_interface_snat_command, static) = {
.path = "set interface nat44",
.function = snat_feature_command_fn,
.short_help = "set interface nat44 in <intfc> out <intfc> [output-feature] "
"[del]",
};
/*?
* @cliexpar
* @cliexstart{show nat44 interfaces}
* Show interfaces with NAT44 feature.
* vpp# show nat44 interfaces
* NAT44 interfaces:
* GigabitEthernet0/8/0 in
* GigabitEthernet0/a/0 out
* @cliexend
?*/
VLIB_CLI_COMMAND (nat44_show_interfaces_command, static) = {
.path = "show nat44 interfaces",
.short_help = "show nat44 interfaces",
.function = nat44_show_interfaces_command_fn,
};
/*?
* @cliexpar
* @cliexstart{nat44 add static mapping}
* Static mapping allows hosts on the external network to initiate connection
* to to the local network host.
* To create static mapping between local host address 10.0.0.3 port 6303 and
* external address 4.4.4.4 port 3606 for TCP protocol use:
* vpp# nat44 add static mapping tcp local 10.0.0.3 6303 external 4.4.4.4 3606
* If not runnig "static mapping only" NAT plugin mode use before:
* vpp# nat44 add address 4.4.4.4
* To create static mapping between local and external address use:
* vpp# nat44 add static mapping local 10.0.0.3 external 4.4.4.4
* @cliexend
?*/
VLIB_CLI_COMMAND (add_static_mapping_command, static) = {
.path = "nat44 add static mapping",
.function = add_static_mapping_command_fn,
.short_help =
"nat44 add static mapping tcp|udp|icmp local <addr> [<port>] "
"external <addr> [<port>] [vrf <table-id>] [twice-nat|self-twice-nat] "
"[out2in-only] [del]",
};
/*?
* @cliexpar
* @cliexstart{nat44 add identity mapping}
* Identity mapping translate an IP address to itself.
* To create identity mapping for address 10.0.0.3 port 6303 for TCP protocol
* use:
* vpp# nat44 add identity mapping 10.0.0.3 tcp 6303
* To create identity mapping for address 10.0.0.3 use:
* vpp# nat44 add identity mapping 10.0.0.3
* To create identity mapping for DHCP addressed interface use:
* vpp# nat44 add identity mapping GigabitEthernet0/a/0 tcp 3606
* @cliexend
?*/
VLIB_CLI_COMMAND (add_identity_mapping_command, static) = {
.path = "nat44 add identity mapping",
.function = add_identity_mapping_command_fn,
.short_help = "nat44 add identity mapping <interface>|<ip4-addr> "
"[<protocol> <port>] [vrf <table-id>] [del]",
};
/*?
* @cliexpar
* @cliexstart{nat44 add load-balancing static mapping}
* Service load balancing using NAT44
* To add static mapping with load balancing for service with external IP
* address 1.2.3.4 and TCP port 80 and mapped to 2 local servers
* 10.100.10.10:8080 and 10.100.10.20:8080 with probability 80% resp. 20% use:
* vpp# nat44 add load-balancing static mapping protocol tcp external 1.2.3.4:80 local 10.100.10.10:8080 probability 80 local 10.100.10.20:8080 probability 20
* @cliexend
?*/
VLIB_CLI_COMMAND (add_lb_static_mapping_command, static) = {
.path = "nat44 add load-balancing static mapping",
.function = add_lb_static_mapping_command_fn,
.short_help =
"nat44 add load-balancing static mapping protocol tcp|udp "
"external <addr>:<port> local <addr>:<port> [vrf <table-id>] "
"probability <n> [twice-nat|self-twice-nat] [out2in-only] "
"[affinity <timeout-seconds>] [del]",
};
/*?
* @cliexpar
* @cliexstart{nat44 add load-balancing static mapping}
* Modify service load balancing using NAT44
* To add new back-end server 10.100.10.30:8080 for service load balancing
* static mapping with external IP address 1.2.3.4 and TCP port 80 use:
* vpp# nat44 add load-balancing back-end protocol tcp external 1.2.3.4:80 local 10.100.10.30:8080 probability 25
* @cliexend
?*/
VLIB_CLI_COMMAND (add_lb_backend_command, static) = {
.path = "nat44 add load-balancing back-end",
.function = add_lb_backend_command_fn,
.short_help =
"nat44 add load-balancing back-end protocol tcp|udp "
"external <addr>:<port> local <addr>:<port> [vrf <table-id>] "
"probability <n> [del]",
};
/*?
* @cliexpar
* @cliexstart{show nat44 static mappings}
* Show NAT44 static mappings.
* vpp# show nat44 static mappings
* NAT44 static mappings:
* local 10.0.0.3 external 4.4.4.4 vrf 0
* tcp local 192.168.0.4:6303 external 4.4.4.3:3606 vrf 0
* tcp vrf 0 external 1.2.3.4:80 out2in-only
* local 10.100.10.10:8080 probability 80
* local 10.100.10.20:8080 probability 20
* tcp local 10.100.3.8:8080 external 169.10.10.1:80 vrf 0 twice-nat
* tcp local 10.0.0.10:3603 external GigabitEthernet0/a/0:6306 vrf 10
* @cliexend
?*/
VLIB_CLI_COMMAND (nat44_show_static_mappings_command, static) = {
.path = "show nat44 static mappings",
.short_help = "show nat44 static mappings",
.function = nat44_show_static_mappings_command_fn,
};
/*?
* @cliexpar
* @cliexstart{nat44 add interface address}
* Use NAT44 pool address from specific interfce
* To add NAT44 pool address from specific interface use:
* vpp# nat44 add interface address GigabitEthernet0/8/0
* @cliexend
?*/
VLIB_CLI_COMMAND (snat_add_interface_address_command, static) = {
.path = "nat44 add interface address",
.short_help = "nat44 add interface address <interface> [twice-nat] [del]",
.function = snat_add_interface_address_command_fn,
};
/*?
* @cliexpar
* @cliexstart{show nat44 interface address}
* Show NAT44 pool address interfaces
* vpp# show nat44 interface address
* NAT44 pool address interfaces:
* GigabitEthernet0/a/0
* NAT44 twice-nat pool address interfaces:
* GigabitEthernet0/8/0
* @cliexend
?*/
VLIB_CLI_COMMAND (nat44_show_interface_address_command, static) = {
.path = "show nat44 interface address",
.short_help = "show nat44 interface address",
.function = nat44_show_interface_address_command_fn,
};
/*?
* @cliexpar
* @cliexstart{show nat44 sessions}
* Show NAT44 sessions.
* @cliexend
?*/
VLIB_CLI_COMMAND (nat44_show_sessions_command, static) = {
.path = "show nat44 sessions",
.short_help = "show nat44 sessions [detail]",
.function = nat44_show_sessions_command_fn,
};
/*?
* @cliexpar
* @cliexstart{nat44 del session}
* To administratively delete NAT44 session by inside address and port use:
* vpp# nat44 del session in 10.0.0.3:6303 tcp
* To administratively delete NAT44 session by outside address and port use:
* vpp# nat44 del session out 1.0.0.3:6033 udp
* @cliexend
?*/
VLIB_CLI_COMMAND (nat44_del_session_command, static) = {
.path = "nat44 del session",
.short_help = "nat44 del session in|out <addr>:<port> tcp|udp|icmp [vrf <id>] [external-host <addr>:<port>]",
.function = nat44_del_session_command_fn,
};
/*?
* @cliexpar
* @cliexstart{nat44 forwarding}
* Enable or disable forwarding
* Forward packets which don't match existing translation
* or static mapping instead of dropping them.
* To enable forwarding, use:
* vpp# nat44 forwarding enable
* To disable forwarding, use:
* vpp# nat44 forwarding disable
* @cliexend
?*/
VLIB_CLI_COMMAND (snat_forwarding_set_command, static) = {
.path = "nat44 forwarding",
.short_help = "nat44 forwarding enable|disable",
.function = snat_forwarding_set_command_fn,
};
/*?
* @cliexpar
* @cliexstart{nat44 deterministic add}
* Create bijective mapping of inside address to outside address and port range
* pairs, with the purpose of enabling deterministic NAT to reduce logging in
* CGN deployments.
* To create deterministic mapping between inside network 10.0.0.0/18 and
* outside network 1.1.1.0/30 use:
* # vpp# nat44 deterministic add in 10.0.0.0/18 out 1.1.1.0/30
* @cliexend
?*/
VLIB_CLI_COMMAND (snat_det_map_command, static) = {
.path = "nat44 deterministic add",
.short_help = "nat44 deterministic add in <addr>/<plen> out <addr>/<plen> [del]",
.function = snat_det_map_command_fn,
};
/*?
* @cliexpar
* @cliexpstart{show nat44 deterministic mappings}
* Show NAT44 deterministic mappings
* vpp# show nat44 deterministic mappings
* NAT44 deterministic mappings:
* in 10.0.0.0/24 out 1.1.1.1/32
* outside address sharing ratio: 256
* number of ports per inside host: 252
* sessions number: 0
* @cliexend
?*/
VLIB_CLI_COMMAND (nat44_det_show_mappings_command, static) = {
.path = "show nat44 deterministic mappings",
.short_help = "show nat44 deterministic mappings",
.function = nat44_det_show_mappings_command_fn,
};
/*?
* @cliexpar
* @cliexstart{nat44 deterministic forward}
* Return outside address and port range from inside address for deterministic
* NAT.
* To obtain outside address and port of inside host use:
* vpp# nat44 deterministic forward 10.0.0.2
* 1.1.1.0:<1054-1068>
* @cliexend
?*/
VLIB_CLI_COMMAND (snat_det_forward_command, static) = {
.path = "nat44 deterministic forward",
.short_help = "nat44 deterministic forward <addr>",
.function = snat_det_forward_command_fn,
};
/*?
* @cliexpar
* @cliexstart{nat44 deterministic reverse}
* Return inside address from outside address and port for deterministic NAT.
* To obtain inside host address from outside address and port use:
* #vpp nat44 deterministic reverse 1.1.1.1:1276
* 10.0.16.16
* @cliexend
?*/
VLIB_CLI_COMMAND (snat_det_reverse_command, static) = {
.path = "nat44 deterministic reverse",
.short_help = "nat44 deterministic reverse <addr>:<port>",
.function = snat_det_reverse_command_fn,
};
/*?
* @cliexpar
* @cliexstart{show nat44 deterministic sessions}
* Show NAT44 deterministic sessions.
* vpp# show nat44 deterministic sessions
* NAT44 deterministic sessions:
* in 10.0.0.3:3005 out 1.1.1.2:1146 external host 172.16.1.2:3006 state: udp-active expire: 306
* in 10.0.0.3:3000 out 1.1.1.2:1141 external host 172.16.1.2:3001 state: udp-active expire: 306
* in 10.0.0.4:3005 out 1.1.1.2:1177 external host 172.16.1.2:3006 state: udp-active expire: 306
* @cliexend
?*/
VLIB_CLI_COMMAND (nat44_det_show_sessions_command, static) = {
.path = "show nat44 deterministic sessions",
.short_help = "show nat44 deterministic sessions",
.function = nat44_det_show_sessions_command_fn,
};
/*?
* @cliexpar
* @cliexstart{nat44 deterministic close session out}
* Close session using outside ip address and port
* and external ip address and port, use:
* vpp# nat44 deterministic close session out 1.1.1.1:1276 2.2.2.2:2387
* @cliexend
?*/
VLIB_CLI_COMMAND (snat_det_close_sesion_out_command, static) = {
.path = "nat44 deterministic close session out",
.short_help = "nat44 deterministic close session out "
"<out_addr>:<out_port> <ext_addr>:<ext_port>",
.function = snat_det_close_session_out_fn,
};
/*?
* @cliexpar
* @cliexstart{nat44 deterministic close session in}
* Close session using inside ip address and port
* and external ip address and port, use:
* vpp# nat44 deterministic close session in 3.3.3.3:3487 2.2.2.2:2387
* @cliexend
?*/
VLIB_CLI_COMMAND (snat_det_close_session_in_command, static) = {
.path = "nat44 deterministic close session in",
.short_help = "nat44 deterministic close session in "
"<in_addr>:<in_port> <ext_addr>:<ext_port>",
.function = snat_det_close_session_in_fn,
};
/* *INDENT-ON* */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
