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authorMatus Fabian <matfabia@cisco.com>2017-06-06 04:53:28 -0700
committerOle Trøan <otroan@employees.org>2017-06-08 11:39:53 +0000
commit06596c54dc51e35222737b01c617cc675505a260 (patch)
tree0ee02baf650e9ab217ee4c3c64913dfac6ce68ff /src/plugins/snat/nat64_cli.c
parent2fcc49d9c6a66c49148d5790f6af38ab2f3b4be6 (diff)
NAT64: Add NAT64 support for snat plugin (VPP-699)
Basic NAT64 feature (no hairpinning, no multi-thread). Change-Id: I392fccbce93e70c117f4a9a7ec7cf08d6c537f2d Signed-off-by: Matus Fabian <matfabia@cisco.com>
Diffstat (limited to 'src/plugins/snat/nat64_cli.c')
-rw-r--r--src/plugins/snat/nat64_cli.c633
1 files changed, 633 insertions, 0 deletions
diff --git a/src/plugins/snat/nat64_cli.c b/src/plugins/snat/nat64_cli.c
new file mode 100644
index 00000000000..3fad75eabda
--- /dev/null
+++ b/src/plugins/snat/nat64_cli.c
@@ -0,0 +1,633 @@
+/*
+ * Copyright (c) 2017 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 NAT64 CLI
+ */
+
+#include <snat/nat64.h>
+#include <snat/snat.h>
+#include <vnet/fib/fib_table.h>
+
+static clib_error_t *
+nat64_add_del_pool_addr_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 start_addr, end_addr, this_addr;
+ u32 start_host_order, end_host_order;
+ int i, count, rv;
+ u32 vrf_id = ~0;
+ u8 is_add = 1;
+ 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, &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, "del"))
+ is_add = 0;
+ else
+ {
+ error = clib_error_return (0, "unknown input '%U'",
+ format_unformat_error, line_input);
+ 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;
+ this_addr = start_addr;
+
+ for (i = 0; i < count; i++)
+ {
+ rv = nat64_add_del_pool_addr (&this_addr, vrf_id, is_add);
+
+ switch (rv)
+ {
+ case VNET_API_ERROR_NO_SUCH_ENTRY:
+ error =
+ clib_error_return (0, "NAT64 pool address %U not exist.",
+ format_ip4_address, &this_addr);
+ goto done;
+ case VNET_API_ERROR_VALUE_EXIST:
+ error =
+ clib_error_return (0, "NAT64 pool address %U exist.",
+ format_ip4_address, &this_addr);
+ goto done;
+ default:
+ break;
+
+ }
+ increment_v4_address (&this_addr);
+ }
+
+done:
+ unformat_free (line_input);
+
+ return error;
+}
+
+static int
+nat64_cli_pool_walk (snat_address_t * ap, void *ctx)
+{
+ vlib_main_t *vm = ctx;
+
+ if (ap->fib_index != ~0)
+ {
+ fib_table_t *fib;
+ fib = fib_table_get (ap->fib_index, FIB_PROTOCOL_IP4);
+ if (!fib)
+ return -1;
+ vlib_cli_output (vm, " %U tenant VRF: %u", format_ip4_address,
+ &ap->addr, fib->ft_table_id);
+ }
+ else
+ vlib_cli_output (vm, " %U", format_ip4_address, &ap->addr);
+
+ return 0;
+}
+
+static clib_error_t *
+nat64_show_pool_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ vlib_cli_output (vm, "NAT64 pool:");
+ nat64_pool_addr_walk (nat64_cli_pool_walk, vm);
+
+ return 0;
+}
+
+static clib_error_t *
+nat64_interface_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_add = 1;
+ int i, rv;
+
+ /* 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, "del"))
+ is_add = 0;
+ 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];
+ rv = nat64_add_del_interface (sw_if_index, 1, is_add);
+ switch (rv)
+ {
+ case VNET_API_ERROR_NO_SUCH_ENTRY:
+ error =
+ clib_error_return (0, "%U NAT64 feature not enabled.",
+ format_vnet_sw_interface_name, vnm,
+ vnet_get_sw_interface (vnm, sw_if_index));
+ goto done;
+ case VNET_API_ERROR_VALUE_EXIST:
+ error =
+ clib_error_return (0, "%U NAT64 feature already enabled.",
+ format_vnet_sw_interface_name, vnm,
+ vnet_get_sw_interface (vnm, sw_if_index));
+ goto done;
+ case VNET_API_ERROR_INVALID_VALUE:
+ case VNET_API_ERROR_INVALID_VALUE_2:
+ error =
+ clib_error_return (0,
+ "%U NAT64 feature enable/disable failed.",
+ format_vnet_sw_interface_name, vnm,
+ vnet_get_sw_interface (vnm, sw_if_index));
+ goto done;
+ default:
+ break;
+
+ }
+ }
+ }
+
+ 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];
+ rv = nat64_add_del_interface (sw_if_index, 0, is_add);
+ switch (rv)
+ {
+ case VNET_API_ERROR_NO_SUCH_ENTRY:
+ error =
+ clib_error_return (0, "%U NAT64 feature not enabled.",
+ format_vnet_sw_interface_name, vnm,
+ vnet_get_sw_interface (vnm, sw_if_index));
+ goto done;
+ case VNET_API_ERROR_VALUE_EXIST:
+ error =
+ clib_error_return (0, "%U NAT64 feature already enabled.",
+ format_vnet_sw_interface_name, vnm,
+ vnet_get_sw_interface (vnm, sw_if_index));
+ goto done;
+ case VNET_API_ERROR_INVALID_VALUE:
+ case VNET_API_ERROR_INVALID_VALUE_2:
+ error =
+ clib_error_return (0,
+ "%U NAT64 feature enable/disable failed.",
+ format_vnet_sw_interface_name, vnm,
+ vnet_get_sw_interface (vnm, sw_if_index));
+ goto done;
+ default:
+ break;
+
+ }
+ }
+ }
+
+done:
+ unformat_free (line_input);
+ vec_free (inside_sw_if_indices);
+ vec_free (outside_sw_if_indices);
+
+ return error;
+}
+
+static int
+nat64_cli_interface_walk (snat_interface_t * i, void *ctx)
+{
+ vlib_main_t *vm = ctx;
+ vnet_main_t *vnm = vnet_get_main ();
+
+ vlib_cli_output (vm, " %U %s", format_vnet_sw_interface_name, vnm,
+ vnet_get_sw_interface (vnm, i->sw_if_index),
+ i->is_inside ? "in" : "out");
+ return 0;
+}
+
+static clib_error_t *
+nat64_show_interfaces_command_fn (vlib_main_t * vm,
+ unformat_input_t *
+ input, vlib_cli_command_t * cmd)
+{
+ vlib_cli_output (vm, "NAT64 interfaces:");
+ nat64_interfaces_walk (nat64_cli_interface_walk, vm);
+
+ return 0;
+}
+
+static clib_error_t *
+nat64_add_del_static_bib_command_fn (vlib_main_t *
+ vm,
+ unformat_input_t
+ * input, vlib_cli_command_t * cmd)
+{
+ unformat_input_t _line_input, *line_input = &_line_input;
+ clib_error_t *error = 0;
+ u8 is_add = 1;
+ ip6_address_t in_addr;
+ ip4_address_t out_addr;
+ u16 in_port;
+ u16 out_port;
+ u32 vrf_id = 0;
+ snat_protocol_t proto = 0;
+ u8 p = 0;
+ int rv;
+
+ 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_ip6_address,
+ &in_addr, &in_port))
+ ;
+ else if (unformat (line_input, "%U %u", unformat_ip4_address,
+ &out_addr, &out_port))
+ ;
+ else if (unformat (line_input, "vrf %u", &vrf_id))
+ ;
+ else if (unformat (line_input, "%U", unformat_snat_protocol, &proto))
+ ;
+ 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;
+ }
+ }
+
+ p = snat_proto_to_ip_proto (proto);
+
+ rv =
+ nat64_add_del_static_bib_entry (&in_addr, &out_addr, in_port, out_port, p,
+ vrf_id, is_add);
+
+ switch (rv)
+ {
+ case VNET_API_ERROR_NO_SUCH_ENTRY:
+ error = clib_error_return (0, "NAT64 BIB entry not exist.");
+ goto done;
+ case VNET_API_ERROR_VALUE_EXIST:
+ error = clib_error_return (0, "NAT64 BIB entry exist.");
+ goto done;
+ case VNET_API_ERROR_UNSPECIFIED:
+ error = clib_error_return (0, "Crerate NAT64 BIB entry failed.");
+ goto done;
+ case VNET_API_ERROR_INVALID_VALUE:
+ error =
+ clib_error_return (0, "Outside addres %U and port %u already in use.",
+ format_ip4_address, &out_addr, out_port);
+ goto done;
+ default:
+ break;
+ }
+
+done:
+ unformat_free (line_input);
+
+ return error;
+}
+
+static int
+nat64_cli_bib_walk (nat64_db_bib_entry_t * bibe, void *ctx)
+{
+ vlib_main_t *vm = ctx;
+ fib_table_t *fib;
+
+ fib = fib_table_get (bibe->fib_index, FIB_PROTOCOL_IP6);
+ if (!fib)
+ return -1;
+
+ vlib_cli_output (vm, " %U %u %U %u %U vrf %u %s %u sessions",
+ format_ip6_address, &bibe->in_addr,
+ clib_net_to_host_u16 (bibe->in_port), format_ip4_address,
+ &bibe->out_addr, clib_net_to_host_u16 (bibe->out_port),
+ format_snat_protocol, bibe->proto, fib->ft_table_id,
+ bibe->is_static ? "static" : "dynamic", bibe->ses_num);
+ return 0;
+}
+
+static clib_error_t *
+nat64_show_bib_command_fn (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ nat64_main_t *nm = &nat64_main;
+ unformat_input_t _line_input, *line_input = &_line_input;
+ clib_error_t *error = 0;
+ snat_protocol_t proto = 0;
+
+ if (!unformat_user (input, unformat_line_input, line_input))
+ return 0;
+
+ if (unformat (line_input, "%U", unformat_snat_protocol, &proto))
+ ;
+ else
+ {
+ error = clib_error_return (0, "unknown input: '%U'",
+ format_unformat_error, line_input);
+ goto done;
+ }
+
+ vlib_cli_output (vm, "NAT64 %U BIB:", format_snat_protocol, proto);
+ nat64_db_bib_walk (&nm->db, proto, nat64_cli_bib_walk, vm);
+
+done:
+ unformat_free (line_input);
+
+ return error;
+}
+
+static clib_error_t *
+nat64_set_timeouts_command_fn (vlib_main_t * vm, unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ unformat_input_t _line_input, *line_input = &_line_input;
+ clib_error_t *error = 0;
+ u32 timeout, tcp_trans, tcp_est, tcp_incoming_syn;
+
+ tcp_trans = nat64_get_tcp_trans_timeout ();
+ tcp_est = nat64_get_tcp_est_timeout ();
+ tcp_incoming_syn = nat64_get_tcp_incoming_syn_timeout ();
+
+ 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", &timeout))
+ {
+ if (nat64_set_udp_timeout (timeout))
+ {
+ error = clib_error_return (0, "Invalid UDP timeout value");
+ goto done;
+ }
+ }
+ else if (unformat (line_input, "icmp %u", &timeout))
+ {
+ if (nat64_set_icmp_timeout (timeout))
+ {
+ error = clib_error_return (0, "Invalid ICMP timeout value");
+ goto done;
+ }
+ }
+ else if (unformat (line_input, "tcp-trans %u", &tcp_trans))
+ {
+ if (nat64_set_tcp_timeouts (tcp_trans, tcp_est, tcp_incoming_syn))
+ {
+ error =
+ clib_error_return (0, "Invalid TCP transitory tiemout value");
+ goto done;
+ }
+ }
+ else if (unformat (line_input, "tcp-est %u", &tcp_est))
+ {
+ if (nat64_set_tcp_timeouts (tcp_trans, tcp_est, tcp_incoming_syn))
+ {
+ error =
+ clib_error_return (0,
+ "Invalid TCP established tiemout value");
+ goto done;
+ }
+ }
+ else
+ if (unformat (line_input, "tcp-incoming-syn %u", &tcp_incoming_syn))
+ {
+ if (nat64_set_tcp_timeouts (tcp_trans, tcp_est, tcp_incoming_syn))
+ {
+ error =
+ clib_error_return (0,
+ "Invalid TCP incoming SYN tiemout value");
+ goto done;
+ }
+ }
+ else if (unformat (line_input, "reset"))
+ {
+ nat64_set_udp_timeout (0);
+ nat64_set_icmp_timeout (0);
+ nat64_set_tcp_timeouts (0, 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 *
+nat64_show_timeouts_command_fn (vlib_main_t * vm, unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ vlib_cli_output (vm, "NAT64 session timeouts:");
+ vlib_cli_output (vm, " UDP %usec", nat64_get_udp_timeout ());
+ vlib_cli_output (vm, " ICMP %usec", nat64_get_icmp_timeout ());
+ vlib_cli_output (vm, " TCP transitory %usec",
+ nat64_get_tcp_trans_timeout ());
+ vlib_cli_output (vm, " TCP established %usec",
+ nat64_get_tcp_est_timeout ());
+ vlib_cli_output (vm, " TCP incoming SYN %usec",
+ nat64_get_tcp_incoming_syn_timeout ());
+
+ return 0;
+}
+
+static int
+nat64_cli_st_walk (nat64_db_st_entry_t * ste, void *ctx)
+{
+ vlib_main_t *vm = ctx;
+ nat64_main_t *nm = &nat64_main;
+ nat64_db_bib_entry_t *bibe;
+ fib_table_t *fib;
+
+ bibe = nat64_db_bib_entry_by_index (&nm->db, ste->proto, ste->bibe_index);
+ if (!bibe)
+ return -1;
+
+ fib = fib_table_get (bibe->fib_index, FIB_PROTOCOL_IP6);
+ if (!fib)
+ return -1;
+
+ u32 vrf_id = fib->ft_table_id;
+
+ if (ste->proto == SNAT_PROTOCOL_ICMP)
+ vlib_cli_output (vm, " %U %U %u %U %U %u %U vrf %u",
+ format_ip6_address, &bibe->in_addr,
+ format_ip6_address, &ste->in_r_addr,
+ clib_net_to_host_u16 (bibe->in_port),
+ format_ip4_address, &bibe->out_addr,
+ format_ip4_address, &ste->out_r_addr,
+ clib_net_to_host_u16 (bibe->out_port),
+ format_snat_protocol, bibe->proto, vrf_id);
+ else
+ vlib_cli_output (vm, " %U %u %U %u %U %u %U %u %U vrf %u",
+ format_ip6_address, &bibe->in_addr,
+ clib_net_to_host_u16 (bibe->in_port),
+ format_ip6_address, &ste->in_r_addr,
+ clib_net_to_host_u16 (ste->r_port),
+ format_ip4_address, &bibe->out_addr,
+ clib_net_to_host_u16 (bibe->out_port),
+ format_ip4_address, &ste->out_r_addr,
+ clib_net_to_host_u16 (ste->r_port),
+ format_snat_protocol, bibe->proto, vrf_id);
+ return 0;
+}
+
+static clib_error_t *
+nat64_show_st_command_fn (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ nat64_main_t *nm = &nat64_main;
+ unformat_input_t _line_input, *line_input = &_line_input;
+ clib_error_t *error = 0;
+ snat_protocol_t proto = 0;
+
+ if (!unformat_user (input, unformat_line_input, line_input))
+ return 0;
+
+ if (unformat (line_input, "%U", unformat_snat_protocol, &proto))
+ ;
+ else
+ {
+ error = clib_error_return (0, "unknown input: '%U'",
+ format_unformat_error, line_input);
+ goto done;
+ }
+
+ vlib_cli_output (vm, "NAT64 %U session table:", format_snat_protocol,
+ proto);
+ nat64_db_st_walk (&nm->db, proto, nat64_cli_st_walk, vm);
+
+done:
+ unformat_free (line_input);
+
+ return error;
+}
+
+/* *INDENT-OFF* */
+
+VLIB_CLI_COMMAND (nat64_add_pool_address_command, static) = {
+ .path = "nat64 add pool address",
+ .short_help = "nat64 add pool address <ip4-range-start> [- <ip4-range-end>] "
+ "[tenant-vrf <vrf-id>] [del]",
+ .function = nat64_add_del_pool_addr_command_fn,
+};
+
+VLIB_CLI_COMMAND (show_nat64_pool_command, static) = {
+ .path = "show nat64 pool",
+ .short_help = "show nat64 pool",
+ .function = nat64_show_pool_command_fn,
+};
+
+VLIB_CLI_COMMAND (set_interface_nat64_command, static) = {
+ .path = "set interface nat64",
+ .short_help = "set interface nat64 in|out <intfc> [del]",
+ .function = nat64_interface_feature_command_fn,
+};
+
+VLIB_CLI_COMMAND (show_nat64_interfaces_command, static) = {
+ .path = "show nat64 interfaces",
+ .short_help = "show nat64 interfaces",
+ .function = nat64_show_interfaces_command_fn,
+};
+
+VLIB_CLI_COMMAND (nat64_add_del_static_bib_command, static) = {
+ .path = "nat64 add static bib",
+ .short_help = "nat64 add static bib <ip6-addr> <port> <ip4-addr> <port> "
+ "tcp|udp|icmp [vfr <table-id>] [del]",
+ .function = nat64_add_del_static_bib_command_fn,
+};
+
+VLIB_CLI_COMMAND (show_nat64_bib_command, static) = {
+ .path = "show nat64 bib",
+ .short_help = "show nat64 bib tcp|udp|icmp",
+ .function = nat64_show_bib_command_fn,
+};
+
+VLIB_CLI_COMMAND (set_nat64_timeouts_command, static) = {
+ .path = "set nat64 timeouts",
+ .short_help = "set nat64 timeouts udp <sec> icmp <sec> tcp-trans <sec> "
+ "tcp-est <sec> tcp-incoming-syn <sec> | reset",
+ .function = nat64_set_timeouts_command_fn,
+};
+
+VLIB_CLI_COMMAND (show_nat64_timeouts_command, static) = {
+ .path = "show nat64 tiemouts",
+ .short_help = "show nat64 tiemouts",
+ .function = nat64_show_timeouts_command_fn,
+};
+
+VLIB_CLI_COMMAND (show_nat64_st_command, static) = {
+ .path = "show nat64 session table",
+ .short_help = "show nat64 session table tcp|udp|icmp",
+ .function = nat64_show_st_command_fn,
+};
+
+/* *INDENT-ON* */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */