blob: 7d265f7e64d84b92b083470dcdbe38fb6f5e9084 [file] [log] [blame]
/*
* decap.c : IPSec tunnel support
*
* Copyright (c) 2015 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.
*/
#include <vnet/vnet.h>
#include <vnet/api_errno.h>
#include <vnet/ip/ip.h>
#include <vnet/interface.h>
#include <vnet/fib/fib.h>
#include <vnet/ipip/ipip.h>
#include <vnet/ipsec/ipsec.h>
#include <vnet/ipsec/ipsec_tun.h>
static clib_error_t *
set_interface_spd_command_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
unformat_input_t _line_input, *line_input = &_line_input;
ipsec_main_t *im = &ipsec_main;
u32 sw_if_index = (u32) ~ 0;
u32 spd_id;
int is_add = 1;
clib_error_t *error = NULL;
if (!unformat_user (input, unformat_line_input, line_input))
return 0;
if (unformat
(line_input, "%U %u", unformat_vnet_sw_interface, im->vnet_main,
&sw_if_index, &spd_id))
;
else if (unformat (line_input, "del"))
is_add = 0;
else
{
error = clib_error_return (0, "parse error: '%U'",
format_unformat_error, line_input);
goto done;
}
ipsec_set_interface_spd (vm, sw_if_index, spd_id, is_add);
done:
unformat_free (line_input);
return error;
}
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (set_interface_spd_command, static) = {
.path = "set interface ipsec spd",
.short_help =
"set interface ipsec spd <int> <id>",
.function = set_interface_spd_command_fn,
};
/* *INDENT-ON* */
static clib_error_t *
ipsec_sa_add_del_command_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
unformat_input_t _line_input, *line_input = &_line_input;
ip46_address_t tun_src = { }, tun_dst =
{
};
ipsec_crypto_alg_t crypto_alg;
ipsec_integ_alg_t integ_alg;
ipsec_protocol_t proto;
ipsec_sa_flags_t flags;
clib_error_t *error;
ipsec_key_t ck = { 0 };
ipsec_key_t ik = { 0 };
u32 id, spi, salt, sai;
u16 udp_src, udp_dst;
int is_add, rv;
u32 m_args = 0;
salt = 0;
error = NULL;
is_add = 0;
flags = IPSEC_SA_FLAG_NONE;
proto = IPSEC_PROTOCOL_ESP;
integ_alg = IPSEC_INTEG_ALG_NONE;
crypto_alg = IPSEC_CRYPTO_ALG_NONE;
udp_src = udp_dst = IPSEC_UDP_PORT_NONE;
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, "add %u", &id))
{
is_add = 1;
m_args |= 1 << 0;
}
else if (unformat (line_input, "del %u", &id))
{
is_add = 0;
m_args |= 1 << 0;
}
else if (unformat (line_input, "spi %u", &spi))
m_args |= 1 << 1;
else if (unformat (line_input, "salt 0x%x", &salt))
;
else if (unformat (line_input, "esp"))
proto = IPSEC_PROTOCOL_ESP;
else if (unformat (line_input, "ah"))
proto = IPSEC_PROTOCOL_AH;
else if (unformat (line_input, "crypto-key %U",
unformat_ipsec_key, &ck))
;
else if (unformat (line_input, "crypto-alg %U",
unformat_ipsec_crypto_alg, &crypto_alg))
;
else if (unformat (line_input, "integ-key %U", unformat_ipsec_key, &ik))
;
else if (unformat (line_input, "integ-alg %U",
unformat_ipsec_integ_alg, &integ_alg))
;
else if (unformat (line_input, "tunnel-src %U",
unformat_ip46_address, &tun_src, IP46_TYPE_ANY))
{
flags |= IPSEC_SA_FLAG_IS_TUNNEL;
if (!ip46_address_is_ip4 (&tun_src))
flags |= IPSEC_SA_FLAG_IS_TUNNEL_V6;
}
else if (unformat (line_input, "tunnel-dst %U",
unformat_ip46_address, &tun_dst, IP46_TYPE_ANY))
;
else if (unformat (line_input, "inbound"))
flags |= IPSEC_SA_FLAG_IS_INBOUND;
else if (unformat (line_input, "use-anti-replay"))
flags |= IPSEC_SA_FLAG_USE_ANTI_REPLAY;
else if (unformat (line_input, "use-esn"))
flags |= IPSEC_SA_FLAG_USE_ESN;
else if (unformat (line_input, "udp-encap"))
flags |= IPSEC_SA_FLAG_UDP_ENCAP;
else
{
error = clib_error_return (0, "parse error: '%U'",
format_unformat_error, line_input);
goto done;
}
}
if ((flags & IPSEC_SA_FLAG_IS_INBOUND)
&& !(flags & IPSEC_SA_FLAG_IS_TUNNEL))
{
error = clib_error_return (0, "inbound specified on non-tunnel SA");
goto done;
}
if (!(m_args & 1))
{
error = clib_error_return (0, "missing id");
goto done;
}
if (is_add)
{
if (!(m_args & 2))
{
error = clib_error_return (0, "missing spi");
goto done;
}
rv = ipsec_sa_add_and_lock (id, spi, proto, crypto_alg,
&ck, integ_alg, &ik, flags,
0, clib_host_to_net_u32 (salt),
&tun_src, &tun_dst, &sai, udp_src, udp_dst);
}
else
{
rv = ipsec_sa_unlock_id (id);
}
if (rv)
error = clib_error_return (0, "failed");
done:
unformat_free (line_input);
return error;
}
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (ipsec_sa_add_del_command, static) = {
.path = "ipsec sa",
.short_help =
"ipsec sa [add|del]",
.function = ipsec_sa_add_del_command_fn,
};
/* *INDENT-ON* */
static clib_error_t *
ipsec_spd_add_del_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 spd_id = ~0;
int is_add = ~0;
clib_error_t *error = NULL;
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, "add"))
is_add = 1;
else if (unformat (line_input, "del"))
is_add = 0;
else if (unformat (line_input, "%u", &spd_id))
;
else
{
error = clib_error_return (0, "parse error: '%U'",
format_unformat_error, line_input);
goto done;
}
}
if (spd_id == ~0)
{
error = clib_error_return (0, "please specify SPD ID");
goto done;
}
ipsec_add_del_spd (vm, spd_id, is_add);
done:
unformat_free (line_input);
return error;
}
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (ipsec_spd_add_del_command, static) = {
.path = "ipsec spd",
.short_help =
"ipsec spd [add|del] <id>",
.function = ipsec_spd_add_del_command_fn,
};
/* *INDENT-ON* */
static clib_error_t *
ipsec_policy_add_del_command_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
unformat_input_t _line_input, *line_input = &_line_input;
ipsec_policy_t p;
int rv, is_add = 0;
u32 tmp, tmp2, stat_index, local_range_set, remote_range_set;
clib_error_t *error = NULL;
u32 is_outbound;
clib_memset (&p, 0, sizeof (p));
p.lport.stop = p.rport.stop = ~0;
remote_range_set = local_range_set = is_outbound = 0;
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, "add"))
is_add = 1;
else if (unformat (line_input, "del"))
is_add = 0;
else if (unformat (line_input, "ip6"))
p.is_ipv6 = 1;
else if (unformat (line_input, "spd %u", &p.id))
;
else if (unformat (line_input, "inbound"))
is_outbound = 0;
else if (unformat (line_input, "outbound"))
is_outbound = 1;
else if (unformat (line_input, "priority %d", &p.priority))
;
else if (unformat (line_input, "protocol %u", &tmp))
p.protocol = (u8) tmp;
else
if (unformat
(line_input, "action %U", unformat_ipsec_policy_action,
&p.policy))
{
if (p.policy == IPSEC_POLICY_ACTION_RESOLVE)
{
error = clib_error_return (0, "unsupported action: 'resolve'");
goto done;
}
}
else if (unformat (line_input, "sa %u", &p.sa_id))
;
else if (unformat (line_input, "local-ip-range %U - %U",
unformat_ip4_address, &p.laddr.start.ip4,
unformat_ip4_address, &p.laddr.stop.ip4))
local_range_set = 1;
else if (unformat (line_input, "remote-ip-range %U - %U",
unformat_ip4_address, &p.raddr.start.ip4,
unformat_ip4_address, &p.raddr.stop.ip4))
remote_range_set = 1;
else if (unformat (line_input, "local-ip-range %U - %U",
unformat_ip6_address, &p.laddr.start.ip6,
unformat_ip6_address, &p.laddr.stop.ip6))
{
p.is_ipv6 = 1;
local_range_set = 1;
}
else if (unformat (line_input, "remote-ip-range %U - %U",
unformat_ip6_address, &p.raddr.start.ip6,
unformat_ip6_address, &p.raddr.stop.ip6))
{
p.is_ipv6 = 1;
remote_range_set = 1;
}
else if (unformat (line_input, "local-port-range %u - %u", &tmp, &tmp2))
{
p.lport.start = tmp;
p.lport.stop = tmp2;
}
else
if (unformat (line_input, "remote-port-range %u - %u", &tmp, &tmp2))
{
p.rport.start = tmp;
p.rport.stop = tmp2;
}
else
{
error = clib_error_return (0, "parse error: '%U'",
format_unformat_error, line_input);
goto done;
}
}
if (!remote_range_set)
{
if (p.is_ipv6)
clib_memset (&p.raddr.stop.ip6, 0xff, 16);
else
clib_memset (&p.raddr.stop.ip4, 0xff, 4);
}
if (!local_range_set)
{
if (p.is_ipv6)
clib_memset (&p.laddr.stop.ip6, 0xff, 16);
else
clib_memset (&p.laddr.stop.ip4, 0xff, 4);
}
rv = ipsec_policy_mk_type (is_outbound, p.is_ipv6, p.policy, &p.type);
if (rv)
{
error = clib_error_return (0, "unsupported policy type for:",
" outboud:%s %s action:%U",
(is_outbound ? "yes" : "no"),
(p.is_ipv6 ? "IPv4" : "IPv6"),
format_ipsec_policy_action, p.policy);
goto done;
}
rv = ipsec_add_del_policy (vm, &p, is_add, &stat_index);
if (!rv)
vlib_cli_output (vm, "policy-index:%d", stat_index);
else
vlib_cli_output (vm, "error:%d", rv);
done:
unformat_free (line_input);
return error;
}
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (ipsec_policy_add_del_command, static) = {
.path = "ipsec policy",
.short_help =
"ipsec policy [add|del] spd <id> priority <n> ",
.function = ipsec_policy_add_del_command_fn,
};
/* *INDENT-ON* */
static void
ipsec_sa_show_all (vlib_main_t * vm, ipsec_main_t * im, u8 detail)
{
u32 sai;
/* *INDENT-OFF* */
pool_foreach_index (sai, im->sad, ({
vlib_cli_output(vm, "%U", format_ipsec_sa, sai,
(detail ? IPSEC_FORMAT_DETAIL : IPSEC_FORMAT_BRIEF));
}));
/* *INDENT-ON* */
}
static void
ipsec_spd_show_all (vlib_main_t * vm, ipsec_main_t * im)
{
u32 spdi;
/* *INDENT-OFF* */
pool_foreach_index (spdi, im->spds, ({
vlib_cli_output(vm, "%U", format_ipsec_spd, spdi);
}));
/* *INDENT-ON* */
}
static void
ipsec_spd_bindings_show_all (vlib_main_t * vm, ipsec_main_t * im)
{
u32 spd_id, sw_if_index;
ipsec_spd_t *spd;
vlib_cli_output (vm, "SPD Bindings:");
/* *INDENT-OFF* */
hash_foreach(sw_if_index, spd_id, im->spd_index_by_sw_if_index, ({
spd = pool_elt_at_index (im->spds, spd_id);
vlib_cli_output (vm, " %d -> %U", spd->id,
format_vnet_sw_if_index_name, im->vnet_main,
sw_if_index);
}));
/* *INDENT-ON* */
}
static walk_rc_t
ipsec_tun_protect_show_one (index_t itpi, void *ctx)
{
vlib_cli_output (ctx, "%U", format_ipsec_tun_protect_index, itpi);
return (WALK_CONTINUE);
}
static void
ipsec_tunnel_show_all (vlib_main_t * vm)
{
ipsec_tun_protect_walk (ipsec_tun_protect_show_one, vm);
}
static clib_error_t *
show_ipsec_command_fn (vlib_main_t * vm,
unformat_input_t * input, vlib_cli_command_t * cmd)
{
ipsec_main_t *im = &ipsec_main;
ipsec_sa_show_all (vm, im, 0);
ipsec_spd_show_all (vm, im);
ipsec_spd_bindings_show_all (vm, im);
ipsec_tun_protect_walk (ipsec_tun_protect_show_one, vm);
vlib_cli_output (vm, "IPSec async mode: %s",
(im->async_mode ? "on" : "off"));
return 0;
}
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (show_ipsec_command, static) = {
.path = "show ipsec all",
.short_help = "show ipsec all",
.function = show_ipsec_command_fn,
};
/* *INDENT-ON* */
static clib_error_t *
show_ipsec_sa_command_fn (vlib_main_t * vm,
unformat_input_t * input, vlib_cli_command_t * cmd)
{
ipsec_main_t *im = &ipsec_main;
u32 sai = ~0;
u8 detail = 0;
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (input, "%u", &sai))
;
if (unformat (input, "detail"))
detail = 1;
else
break;
}
if (~0 == sai)
ipsec_sa_show_all (vm, im, detail);
else
vlib_cli_output (vm, "%U", format_ipsec_sa, sai,
IPSEC_FORMAT_DETAIL | IPSEC_FORMAT_INSECURE);
return 0;
}
static clib_error_t *
clear_ipsec_sa_command_fn (vlib_main_t * vm,
unformat_input_t * input, vlib_cli_command_t * cmd)
{
ipsec_main_t *im = &ipsec_main;
u32 sai = ~0;
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (input, "%u", &sai))
;
else
break;
}
if (~0 == sai)
{
/* *INDENT-OFF* */
pool_foreach_index (sai, im->sad, ({
ipsec_sa_clear(sai);
}));
/* *INDENT-ON* */
}
else
{
if (pool_is_free_index (im->sad, sai))
return clib_error_return (0, "unknown SA index: %d", sai);
else
ipsec_sa_clear (sai);
}
return 0;
}
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (show_ipsec_sa_command, static) = {
.path = "show ipsec sa",
.short_help = "show ipsec sa [index]",
.function = show_ipsec_sa_command_fn,
};
VLIB_CLI_COMMAND (clear_ipsec_sa_command, static) = {
.path = "clear ipsec sa",
.short_help = "clear ipsec sa [index]",
.function = clear_ipsec_sa_command_fn,
};
/* *INDENT-ON* */
static clib_error_t *
show_ipsec_spd_command_fn (vlib_main_t * vm,
unformat_input_t * input, vlib_cli_command_t * cmd)
{
ipsec_main_t *im = &ipsec_main;
u8 show_bindings = 0;
u32 spdi = ~0;
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (input, "%u", &spdi))
;
else if (unformat (input, "bindings"))
show_bindings = 1;
else
break;
}
if (show_bindings)
ipsec_spd_bindings_show_all (vm, im);
else if (~0 != spdi)
vlib_cli_output (vm, "%U", format_ipsec_spd, spdi);
else
ipsec_spd_show_all (vm, im);
return 0;
}
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (show_ipsec_spd_command, static) = {
.path = "show ipsec spd",
.short_help = "show ipsec spd [index]",
.function = show_ipsec_spd_command_fn,
};
/* *INDENT-ON* */
static clib_error_t *
show_ipsec_tunnel_command_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
ipsec_tunnel_show_all (vm);
return 0;
}
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (show_ipsec_tunnel_command, static) = {
.path = "show ipsec tunnel",
.short_help = "show ipsec tunnel",
.function = show_ipsec_tunnel_command_fn,
};
/* *INDENT-ON* */
static clib_error_t *
ipsec_show_backends_command_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
ipsec_main_t *im = &ipsec_main;
u32 verbose = 0;
(void) unformat (input, "verbose %u", &verbose);
vlib_cli_output (vm, "IPsec AH backends available:");
u8 *s = format (NULL, "%=25s %=25s %=10s\n", "Name", "Index", "Active");
ipsec_ah_backend_t *ab;
/* *INDENT-OFF* */
pool_foreach (ab, im->ah_backends, {
s = format (s, "%=25s %=25u %=10s\n", ab->name, ab - im->ah_backends,
ab - im->ah_backends == im->ah_current_backend ? "yes" : "no");
if (verbose) {
vlib_node_t *n;
n = vlib_get_node (vm, ab->ah4_encrypt_node_index);
s = format (s, " enc4 %s (next %d)\n", n->name, ab->ah4_encrypt_next_index);
n = vlib_get_node (vm, ab->ah4_decrypt_node_index);
s = format (s, " dec4 %s (next %d)\n", n->name, ab->ah4_decrypt_next_index);
n = vlib_get_node (vm, ab->ah6_encrypt_node_index);
s = format (s, " enc6 %s (next %d)\n", n->name, ab->ah6_encrypt_next_index);
n = vlib_get_node (vm, ab->ah6_decrypt_node_index);
s = format (s, " dec6 %s (next %d)\n", n->name, ab->ah6_decrypt_next_index);
}
});
/* *INDENT-ON* */
vlib_cli_output (vm, "%v", s);
_vec_len (s) = 0;
vlib_cli_output (vm, "IPsec ESP backends available:");
s = format (s, "%=25s %=25s %=10s\n", "Name", "Index", "Active");
ipsec_esp_backend_t *eb;
/* *INDENT-OFF* */
pool_foreach (eb, im->esp_backends, {
s = format (s, "%=25s %=25u %=10s\n", eb->name, eb - im->esp_backends,
eb - im->esp_backends == im->esp_current_backend ? "yes"
: "no");
if (verbose) {
vlib_node_t *n;
n = vlib_get_node (vm, eb->esp4_encrypt_node_index);
s = format (s, " enc4 %s (next %d)\n", n->name, eb->esp4_encrypt_next_index);
n = vlib_get_node (vm, eb->esp4_decrypt_node_index);
s = format (s, " dec4 %s (next %d)\n", n->name, eb->esp4_decrypt_next_index);
n = vlib_get_node (vm, eb->esp6_encrypt_node_index);
s = format (s, " enc6 %s (next %d)\n", n->name, eb->esp6_encrypt_next_index);
n = vlib_get_node (vm, eb->esp6_decrypt_node_index);
s = format (s, " dec6 %s (next %d)\n", n->name, eb->esp6_decrypt_next_index);
}
});
/* *INDENT-ON* */
vlib_cli_output (vm, "%v", s);
vec_free (s);
return 0;
}
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (ipsec_show_backends_command, static) = {
.path = "show ipsec backends",
.short_help = "show ipsec backends",
.function = ipsec_show_backends_command_fn,
};
/* *INDENT-ON* */
static clib_error_t *
ipsec_select_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;
ipsec_main_t *im = &ipsec_main;
clib_error_t *error;
u32 backend_index;
error = ipsec_rsc_in_use (im);
if (error)
return error;
/* Get a line of input. */
if (!unformat_user (input, unformat_line_input, line_input))
return 0;
if (unformat (line_input, "ah"))
{
if (unformat (line_input, "%u", &backend_index))
{
if (ipsec_select_ah_backend (im, backend_index) < 0)
{
return clib_error_return (0, "Invalid AH backend index `%u'",
backend_index);
}
}
else
{
return clib_error_return (0, "Invalid backend index `%U'",
format_unformat_error, line_input);
}
}
else if (unformat (line_input, "esp"))
{
if (unformat (line_input, "%u", &backend_index))
{
if (ipsec_select_esp_backend (im, backend_index) < 0)
{
return clib_error_return (0, "Invalid ESP backend index `%u'",
backend_index);
}
}
else
{
return clib_error_return (0, "Invalid backend index `%U'",
format_unformat_error, line_input);
}
}
else
{
return clib_error_return (0, "Unknown input `%U'",
format_unformat_error, line_input);
}
return 0;
}
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (ipsec_select_backend_command, static) = {
.path = "ipsec select backend",
.short_help = "ipsec select backend <ah|esp> <backend index>",
.function = ipsec_select_backend_command_fn,
};
/* *INDENT-ON* */
static clib_error_t *
clear_ipsec_counters_command_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
vlib_clear_combined_counters (&ipsec_spd_policy_counters);
vlib_clear_combined_counters (&ipsec_sa_counters);
return (NULL);
}
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (clear_ipsec_counters_command, static) = {
.path = "clear ipsec counters",
.short_help = "clear ipsec counters",
.function = clear_ipsec_counters_command_fn,
};
/* *INDENT-ON* */
static u32
ipsec_tun_mk_local_sa_id (u32 ti)
{
return (0x80000000 | ti);
}
static u32
ipsec_tun_mk_remote_sa_id (u32 ti)
{
return (0xc0000000 | ti);
}
static clib_error_t *
create_ipsec_tunnel_command_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
unformat_input_t _line_input, *line_input = &_line_input;
ip46_address_t local_ip = ip46_address_initializer;
ip46_address_t remote_ip = ip46_address_initializer;
ip_address_t nh = IP_ADDRESS_V4_ALL_0S;
ipsec_crypto_alg_t crypto_alg = IPSEC_CRYPTO_ALG_NONE;
ipsec_integ_alg_t integ_alg = IPSEC_INTEG_ALG_NONE;
ipsec_sa_flags_t flags;
u32 local_spi, remote_spi, salt = 0, table_id, fib_index;
u32 instance = ~0;
int rv;
u32 m_args = 0;
u8 ipv4_set = 0;
u8 ipv6_set = 0;
u8 is_add = 1;
clib_error_t *error = NULL;
ipsec_key_t rck = { 0 };
ipsec_key_t lck = { 0 };
ipsec_key_t lik = { 0 };
ipsec_key_t rik = { 0 };
table_id = 0;
flags = IPSEC_SA_FLAG_NONE;
/* 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-ip %U", unformat_ip46_address, &local_ip,
IP46_TYPE_ANY))
{
ip46_address_is_ip4 (&local_ip) ? (ipv4_set = 1) : (ipv6_set = 1);
m_args |= 1 << 0;
}
else
if (unformat
(line_input, "remote-ip %U", unformat_ip46_address, &remote_ip,
IP46_TYPE_ANY))
{
ip46_address_is_ip4 (&remote_ip) ? (ipv4_set = 1) : (ipv6_set = 1);
m_args |= 1 << 1;
}
else if (unformat (line_input, "local-spi %u", &local_spi))
m_args |= 1 << 2;
else if (unformat (line_input, "remote-spi %u", &remote_spi))
m_args |= 1 << 3;
else if (unformat (line_input, "salt 0x%x", &salt))
;
else if (unformat (line_input, "udp-encap"))
flags |= IPSEC_SA_FLAG_UDP_ENCAP;
else if (unformat (line_input, "use-esn"))
flags |= IPSEC_SA_FLAG_USE_ESN;
else if (unformat (line_input, "use-anti-replay"))
flags |= IPSEC_SA_FLAG_USE_ANTI_REPLAY;
else if (unformat (line_input, "instance %u", &instance))
;
else if (unformat (line_input, "tx-table %u", &table_id))
;
else
if (unformat
(line_input, "local-crypto-key %U", unformat_ipsec_key, &lck))
;
else
if (unformat
(line_input, "remote-crypto-key %U", unformat_ipsec_key, &rck))
;
else if (unformat (line_input, "crypto-alg %U",
unformat_ipsec_crypto_alg, &crypto_alg))
;
else
if (unformat
(line_input, "local-integ-key %U", unformat_ipsec_key, &lik))
;
else
if (unformat
(line_input, "remote-integ-key %U", unformat_ipsec_key, &rik))
;
else if (unformat (line_input, "integ-alg %U",
unformat_ipsec_integ_alg, &integ_alg))
;
else if (unformat (line_input, "del"))
is_add = 0;
else if (unformat (line_input, "nh &U", unformat_ip_address, &nh))
;
else
{
error = clib_error_return (0, "unknown input `%U'",
format_unformat_error, line_input);
goto done;
}
}
if (0xf != m_args)
{
error = clib_error_return (0, "mandatory argument(s) missing");
goto done;
}
if (ipv4_set && ipv6_set)
return clib_error_return (0, "both IPv4 and IPv6 addresses specified");
fib_index = fib_table_find (fib_ip_proto (ipv6_set), table_id);
if (~0 == fib_index)
{
rv = VNET_API_ERROR_NO_SUCH_FIB;
goto done;
}
if (is_add)
{
// remote = input, local = output
u32 sw_if_index;
/* create an ip-ip tunnel, then the two SA, then bind them */
rv =
ipip_add_tunnel (ipv6_set ? IPIP_TRANSPORT_IP6 : IPIP_TRANSPORT_IP4,
instance, &local_ip, &remote_ip, fib_index,
TUNNEL_ENCAP_DECAP_FLAG_NONE, IP_DSCP_CS0,
TUNNEL_MODE_P2P, &sw_if_index);
rv |=
ipsec_sa_add_and_lock (ipsec_tun_mk_local_sa_id (sw_if_index),
local_spi, IPSEC_PROTOCOL_ESP, crypto_alg,
&lck, integ_alg, &lik, flags, table_id,
clib_host_to_net_u32 (salt), &local_ip,
&remote_ip, NULL, IPSEC_UDP_PORT_NONE,
IPSEC_UDP_PORT_NONE);
rv |=
ipsec_sa_add_and_lock (ipsec_tun_mk_remote_sa_id (sw_if_index),
remote_spi, IPSEC_PROTOCOL_ESP, crypto_alg,
&rck, integ_alg, &rik,
(flags | IPSEC_SA_FLAG_IS_INBOUND), table_id,
clib_host_to_net_u32 (salt), &remote_ip,
&local_ip, NULL, IPSEC_UDP_PORT_NONE,
IPSEC_UDP_PORT_NONE);
rv |=
ipsec_tun_protect_update_one (sw_if_index, &nh,
ipsec_tun_mk_local_sa_id (sw_if_index),
ipsec_tun_mk_remote_sa_id
(sw_if_index));
}
else
rv = 0;
switch (rv)
{
case 0:
break;
case VNET_API_ERROR_INVALID_VALUE:
error = clib_error_return (0,
"IPSec tunnel interface already exists...");
goto done;
default:
error = clib_error_return (0, "ipsec_register_interface returned %d",
rv);
goto done;
}
done:
unformat_free (line_input);
return error;
}
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (create_ipsec_tunnel_command, static) = {
.path = "create ipsec tunnel",
.short_help = "create ipsec tunnel local-ip <addr> local-spi <spi> "
"remote-ip <addr> remote-spi <spi> [instance <inst_num>] [udp-encap] [use-esn] [use-anti-replay] "
"[tx-table <table-id>]",
.function = create_ipsec_tunnel_command_fn,
};
/* *INDENT-ON* */
static clib_error_t *
ipsec_tun_protect_cmd (vlib_main_t * vm,
unformat_input_t * input, vlib_cli_command_t * cmd)
{
unformat_input_t _line_input, *line_input = &_line_input;
u32 sw_if_index, is_del, sa_in, sa_out, *sa_ins = NULL;
ip_address_t peer = { };
vnet_main_t *vnm;
is_del = 0;
sw_if_index = ~0;
vnm = vnet_get_main ();
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, "del"))
is_del = 1;
else if (unformat (line_input, "add"))
is_del = 0;
else if (unformat (line_input, "sa-in %d", &sa_in))
vec_add1 (sa_ins, sa_in);
else if (unformat (line_input, "sa-out %d", &sa_out))
;
else if (unformat (line_input, "%U",
unformat_vnet_sw_interface, vnm, &sw_if_index))
;
else if (unformat (line_input, "%U", unformat_ip_address, &peer))
;
else
return (clib_error_return (0, "unknown input '%U'",
format_unformat_error, line_input));
}
if (!is_del)
ipsec_tun_protect_update (sw_if_index, &peer, sa_out, sa_ins);
else
ipsec_tun_protect_del (sw_if_index, &peer);
unformat_free (line_input);
return NULL;
}
/**
* Protect tunnel with IPSEC
*/
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (ipsec_tun_protect_cmd_node, static) =
{
.path = "ipsec tunnel protect",
.function = ipsec_tun_protect_cmd,
.short_help = "ipsec tunnel protect <interface> input-sa <SA> output-sa <SA> [add|del]",
// this is not MP safe
};
/* *INDENT-ON* */
static clib_error_t *
ipsec_tun_protect_show (vlib_main_t * vm,
unformat_input_t * input, vlib_cli_command_t * cmd)
{
ipsec_tun_protect_walk (ipsec_tun_protect_show_one, vm);
return NULL;
}
/**
* show IPSEC tunnel protection
*/
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (ipsec_tun_protect_show_node, static) =
{
.path = "show ipsec protect",
.function = ipsec_tun_protect_show,
.short_help = "show ipsec protect",
};
/* *INDENT-ON* */
static int
ipsec_tun_protect4_hash_show_one (clib_bihash_kv_8_8_t * kv, void *arg)
{
ipsec4_tunnel_kv_t *ikv = (ipsec4_tunnel_kv_t *) kv;
vlib_main_t *vm = arg;
vlib_cli_output (vm, " %U", format_ipsec4_tunnel_kv, ikv);
return (BIHASH_WALK_CONTINUE);
}
static int
ipsec_tun_protect6_hash_show_one (clib_bihash_kv_24_8_t * kv, void *arg)
{
ipsec6_tunnel_kv_t *ikv = (ipsec6_tunnel_kv_t *) kv;
vlib_main_t *vm = arg;
vlib_cli_output (vm, " %U", format_ipsec6_tunnel_kv, ikv);
return (BIHASH_WALK_CONTINUE);
}
static clib_error_t *
ipsec_tun_protect_hash_show (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
ipsec_main_t *im = &ipsec_main;
{
vlib_cli_output (vm, "IPv4:");
clib_bihash_foreach_key_value_pair_8_8
(&im->tun4_protect_by_key, ipsec_tun_protect4_hash_show_one, vm);
vlib_cli_output (vm, "IPv6:");
clib_bihash_foreach_key_value_pair_24_8
(&im->tun6_protect_by_key, ipsec_tun_protect6_hash_show_one, vm);
}
return NULL;
}
/**
* show IPSEC tunnel protection hash tables
*/
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (ipsec_tun_protect_hash_show_node, static) =
{
.path = "show ipsec protect-hash",
.function = ipsec_tun_protect_hash_show,
.short_help = "show ipsec protect-hash",
};
/* *INDENT-ON* */
clib_error_t *
ipsec_cli_init (vlib_main_t * vm)
{
return 0;
}
VLIB_INIT_FUNCTION (ipsec_cli_init);
static clib_error_t *
set_async_mode_command_fn (vlib_main_t * vm, unformat_input_t * input,
vlib_cli_command_t * cmd)
{
unformat_input_t _line_input, *line_input = &_line_input;
int async_enable = 0;
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, "on"))
async_enable = 1;
else if (unformat (line_input, "off"))
async_enable = 0;
else
return (clib_error_return (0, "unknown input '%U'",
format_unformat_error, line_input));
}
vnet_crypto_request_async_mode (async_enable);
ipsec_set_async_mode (async_enable);
unformat_free (line_input);
return (NULL);
}
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (set_async_mode_command, static) = {
.path = "set ipsec async mode",
.short_help = "set ipsec async mode on|off",
.function = set_async_mode_command_fn,
};
/* *INDENT-ON* */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/