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-rw-r--r--src/vnet/ip/rd_cp.c700
1 files changed, 0 insertions, 700 deletions
diff --git a/src/vnet/ip/rd_cp.c b/src/vnet/ip/rd_cp.c
deleted file mode 100644
index c9c387e07c0..00000000000
--- a/src/vnet/ip/rd_cp.c
+++ /dev/null
@@ -1,700 +0,0 @@
-/*
- * 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.
- */
-
-#include <vnet/vnet.h>
-#include <vlibmemory/api.h>
-#include <vnet/vnet_msg_enum.h>
-#include <vnet/ip/ip6.h>
-#include <vnet/ethernet/ethernet.h>
-#include <vnet/ip/ip6_neighbor.h>
-#include <vnet/fib/fib_table.h>
-#include <signal.h>
-#include <math.h>
-
-#define vl_typedefs /* define message structures */
-#include <vnet/vnet_all_api_h.h>
-#undef vl_typedefs
-
-#define vl_endianfun /* define message structures */
-#include <vnet/vnet_all_api_h.h>
-#undef vl_endianfun
-
-#include <vlibapi/api_helper_macros.h>
-
-#define foreach_rd_cp_msg \
-_(IP6_ND_ADDRESS_AUTOCONFIG, ip6_nd_address_autoconfig)
-
-typedef struct
-{
- u32 sw_if_index;
- u8 address_length;
- ip6_address_t address;
- f64 due_time;
-} slaac_address_t;
-
-typedef struct
-{
- u32 sw_if_index;
- ip6_address_t router_address;
- f64 due_time;
-} default_route_t;
-
-typedef struct
-{
- u8 enabled;
- u8 install_default_routes;
-} interface_config_t;
-
-typedef struct
-{
- u8 enabled;
- u8 events_on;
-
- interface_config_t *config_by_sw_if_index;
- slaac_address_t *slaac_address_pool;
- default_route_t *default_route_pool;
-
- /* binary API client */
- u8 api_connected;
- svm_queue_t *vl_input_queue;
- u32 my_client_index;
-
- /* logging */
- vlib_log_class_t log_class;
-
- /* convenience */
- vlib_main_t *vlib_main;
- vnet_main_t *vnet_main;
- api_main_t *api_main;
- u32 node_index;
-} rd_cp_main_t;
-
-rd_cp_main_t rd_cp_main;
-
-enum
-{
- RD_CP_EVENT_INTERRUPT,
-};
-
-#define vl_api_ip6_nd_address_autoconfig_t_print vl_noop_handler
-
-static void
-router_solicitation_start_stop (u32 sw_if_index, u8 start)
-{
- rd_cp_main_t *rm = &rd_cp_main;
- icmp6_send_router_solicitation_params_t params = { 0, };
-
- if (start)
- {
- params.irt = 1;
- params.mrt = 120;
- }
-
- icmp6_send_router_solicitation (rm->vlib_main, sw_if_index, !start,
- &params);
-}
-
-static void interrupt_process (void);
-
-static int
-add_slaac_address (vlib_main_t * vm, u32 sw_if_index, u8 address_length,
- ip6_address_t * address, f64 due_time)
-{
- rd_cp_main_t *rm = &rd_cp_main;
- slaac_address_t *slaac_address;
- clib_error_t *rv = 0;
-
- pool_get (rm->slaac_address_pool, slaac_address);
-
- slaac_address->sw_if_index = sw_if_index;
- slaac_address->address_length = address_length;
- slaac_address->address = *address;
- slaac_address->due_time = due_time;
-
- rv =
- ip6_add_del_interface_address (vm, sw_if_index, &slaac_address->address,
- address_length, 0);
-
- return rv != 0;
-}
-
-static void
-add_default_route (vlib_main_t * vm, u32 sw_if_index,
- ip6_address_t * next_hop_address, f64 due_time)
-{
- rd_cp_main_t *rm = &rd_cp_main;
- default_route_t *default_route;
-
- pool_get (rm->default_route_pool, default_route);
-
- default_route->sw_if_index = sw_if_index;
- default_route->router_address = *next_hop_address;
- default_route->due_time = due_time;
-
- {
- u32 fib_index = fib_table_get_index_for_sw_if_index (FIB_PROTOCOL_IP6,
- default_route->
- sw_if_index);
- fib_prefix_t pfx = {
- .fp_proto = FIB_PROTOCOL_IP6,
- };
- ip46_address_t nh = {
- .ip6 = default_route->router_address,
- };
- fib_table_entry_update_one_path (fib_index, &pfx,
- FIB_SOURCE_API,
- FIB_ENTRY_FLAG_NONE,
- DPO_PROTO_IP6,
- &nh,
- default_route->sw_if_index,
- 0, 1, NULL, FIB_ROUTE_PATH_FLAG_NONE);
- }
-}
-
-static int
-remove_slaac_address (vlib_main_t * vm, slaac_address_t * slaac_address)
-{
- rd_cp_main_t *rm = &rd_cp_main;
- clib_error_t *rv = 0;
-
- rv = ip6_add_del_interface_address (vm, slaac_address->sw_if_index,
- &slaac_address->address,
- slaac_address->address_length, 1);
-
- pool_put (rm->slaac_address_pool, slaac_address);
-
- return rv != 0;
-}
-
-static void
-remove_default_route (vlib_main_t * vm, default_route_t * default_route)
-{
- rd_cp_main_t *rm = &rd_cp_main;
-
- {
- u32 fib_index = fib_table_get_index_for_sw_if_index (FIB_PROTOCOL_IP6,
- default_route->
- sw_if_index);
- fib_prefix_t pfx = {
- .fp_proto = FIB_PROTOCOL_IP6,
- };
- ip46_address_t nh = {
- .ip6 = default_route->router_address,
- };
- fib_table_entry_path_remove (fib_index, &pfx,
- FIB_SOURCE_API,
- DPO_PROTO_IP6,
- &nh,
- default_route->sw_if_index,
- 0, 1, FIB_ROUTE_PATH_FLAG_NONE);
- }
-
- pool_put (rm->default_route_pool, default_route);
-}
-
-static u32
-get_interface_mac_address (u32 sw_if_index, u8 mac[])
-{
- rd_cp_main_t *rm = &rd_cp_main;
- vnet_sw_interface_t *si;
- ethernet_interface_t *eth_if = 0;
-
- if (!vnet_sw_interface_is_api_valid (rm->vnet_main, sw_if_index))
- {
- vlib_log_warn (rm->log_class, "Invalid sw_if_index");
- return 1;
- }
-
- si = vnet_get_sup_sw_interface (rm->vnet_main, sw_if_index);
- if (si->type == VNET_SW_INTERFACE_TYPE_HARDWARE)
- eth_if = ethernet_get_interface (&ethernet_main, si->hw_if_index);
-
- if (!eth_if)
- {
- vlib_log_warn (rm->log_class, "Failed to get hardware interface");
- return 1;
- }
-
- clib_memcpy_fast (mac, eth_if->address, 6);
-
- return 0;
-}
-
-static u32
-ip6_enable (u32 sw_if_index)
-{
- rd_cp_main_t *rm = &rd_cp_main;
- clib_error_t *rv;
-
- rv = enable_ip6_interface (rm->vlib_main, sw_if_index);
-
- return rv != 0;
-}
-
-static u8
-ip6_prefixes_equal (ip6_address_t * prefix1, ip6_address_t * prefix2, u8 len)
-{
- if (len >= 64)
- {
- if (prefix1->as_u64[0] != prefix2->as_u64[0])
- return 0;
- if (len == 64)
- return 1;
- return prefix1->as_u64[1] >> (128 - len) ==
- prefix2->as_u64[1] >> (128 - len);
- }
- return prefix1->as_u64[0] >> (64 - len) == prefix2->as_u64[0] >> (64 - len);
-}
-
-#define PREFIX_FLAG_A (1 << 6)
-#define PREFIX_FLAG_L (1 << 7)
-
-static clib_error_t *
-ip6_ra_report_handler (void *data)
-{
- rd_cp_main_t *rm = &rd_cp_main;
- vlib_main_t *vm = rm->vlib_main;
- clib_error_t *error = 0;
- ra_report_t *r = data;
- interface_config_t *if_config;
- default_route_t *default_route;
- slaac_address_t *slaac_address;
- u32 sw_if_index;
- u16 router_lifetime_in_sec;
- u32 n_prefixes;
- ra_report_prefix_info_t *prefix;
- u8 mac[6];
- f64 current_time;
- u32 i;
-
- current_time = vlib_time_now (vm);
-
- sw_if_index = r->sw_if_index;
-
- if (sw_if_index >= vec_len (rm->config_by_sw_if_index))
- return 0;
- if_config = &rm->config_by_sw_if_index[sw_if_index];
-
- if (if_config->install_default_routes)
- {
- router_lifetime_in_sec = r->router_lifetime_in_sec;
- u8 route_already_present = 0;
- /* *INDENT-OFF* */
- pool_foreach (default_route, rm->default_route_pool,
- ({
- if (default_route->sw_if_index != sw_if_index)
- ;
- else if (0 != memcmp (&default_route->router_address,
- &r->router_address, 16))
- ;
- else
- {
- route_already_present = 1;
- goto default_route_pool_foreach_out;
- }
- }));
- /* *INDENT-ON* */
- default_route_pool_foreach_out:
-
- if (!route_already_present)
- {
- if (router_lifetime_in_sec != 0)
- add_default_route (vm, sw_if_index, &r->router_address,
- current_time + router_lifetime_in_sec);
- }
- else
- {
- if (router_lifetime_in_sec != 0)
- default_route->due_time = current_time + router_lifetime_in_sec;
- else
- remove_default_route (vm, default_route);
- }
- }
-
- if (get_interface_mac_address (sw_if_index, mac) != 0)
- {
- vlib_log_warn (rm->log_class, "Error getting MAC address");
- return clib_error_return (0, "Error getting MAC address");
- }
-
- if (!if_config->enabled)
- return 0;
-
- n_prefixes = vec_len (r->prefixes);
- for (i = 0; i < n_prefixes; i++)
- {
- ip6_address_t *dst_address;
- u8 prefix_length;
- u32 valid_time;
- u32 preferred_time;
- f64 due_time;
-
- prefix = &r->prefixes[i];
-
- if (!(prefix->flags & PREFIX_FLAG_A))
- continue;
-
- dst_address = &prefix->prefix.fp_addr.ip6;
- prefix_length = prefix->prefix.fp_len;
-
- if (ip6_address_is_link_local_unicast (dst_address))
- continue;
-
- valid_time = prefix->valid_time;
- preferred_time = prefix->preferred_time;
-
- if (preferred_time > valid_time)
- continue;
-
- if (prefix_length != 64)
- continue;
-
- u8 address_already_present = 0;
- /* *INDENT-OFF* */
- pool_foreach (slaac_address, rm->slaac_address_pool,
- ({
- if (slaac_address->sw_if_index != sw_if_index)
- ;
- else if (slaac_address->address_length != prefix_length)
- ;
- else if (!ip6_prefixes_equal (&slaac_address->address, dst_address,
- prefix_length))
- ;
- else
- {
- address_already_present = 1;
- goto slaac_address_pool_foreach_out;
- }
- }));
- /* *INDENT-ON* */
- slaac_address_pool_foreach_out:
-
- if (address_already_present)
- {
- f64 remaining_life_time = slaac_address->due_time - current_time;
- if (valid_time > 2 * 60 * 60 || valid_time > remaining_life_time)
- slaac_address->due_time = current_time + valid_time;
- else if (remaining_life_time > 2 * 60 * 60)
- slaac_address->due_time = current_time + 2 * 60 * 60;
- continue;
- }
-
- if (valid_time == 0)
- continue;
-
- due_time = current_time + valid_time;
-
- ip6_address_t addr;
- addr.as_u64[0] = dst_address->as_u64[0];
- /* Invert the "u" bit */
- addr.as_u8[8] = mac[0] ^ (1 << 1);
- addr.as_u8[9] = mac[1];
- addr.as_u8[10] = mac[2];
- addr.as_u8[11] = 0xFF;
- addr.as_u8[12] = 0xFE;
- addr.as_u8[13] = mac[3];
- addr.as_u8[14] = mac[4];
- addr.as_u8[15] = mac[5];
-
- add_slaac_address (vm, sw_if_index, prefix_length, &addr, due_time);
- }
-
- interrupt_process ();
-
- return error;
-}
-
-VNET_IP6_NEIGHBOR_RA_FUNCTION (ip6_ra_report_handler);
-
-static uword
-rd_cp_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
-{
- uword *event_data = 0;
- rd_cp_main_t *rm = &rd_cp_main;
- slaac_address_t *slaac_address;
- default_route_t *default_route;
- f64 sleep_time = 1e9;
- f64 current_time;
- f64 due_time;
-
- while (1)
- {
- vlib_process_wait_for_event_or_clock (vm, sleep_time);
- vlib_process_get_events (vm, &event_data);
-
- vec_reset_length (event_data);
-
- current_time = vlib_time_now (vm);
- do
- {
- due_time = current_time + 1e9;
- u32 index;
- /*
- * we do not use pool_foreach() to iterate over pool elements here
- * as we are removing elements inside the loop body
- */
- /* *INDENT-OFF* */
- pool_foreach_index (index, rm->slaac_address_pool,
- ({
- slaac_address = pool_elt_at_index(rm->slaac_address_pool, index);
- if (slaac_address->due_time > current_time)
- {
- if (slaac_address->due_time < due_time)
- due_time = slaac_address->due_time;
- }
- else
- {
- u32 sw_if_index = slaac_address->sw_if_index;
- remove_slaac_address (vm, slaac_address);
- /* make sure ip6 stays enabled */
- ip6_enable (sw_if_index);
- }
- }));
- pool_foreach_index (index, rm->default_route_pool,
- ({
- default_route = pool_elt_at_index(rm->default_route_pool, index);
- if (default_route->due_time > current_time)
- {
- if (default_route->due_time < due_time)
- due_time = default_route->due_time;
- }
- else
- remove_default_route (vm, default_route);
- }));
- /* *INDENT-ON* */
- current_time = vlib_time_now (vm);
- }
- while (due_time < current_time);
-
- sleep_time = due_time - current_time;
- }
-
- return 0;
-}
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (rd_cp_process_node) = {
- .function = rd_cp_process,
- .type = VLIB_NODE_TYPE_PROCESS,
- .name = "rd-cp-process",
-};
-/* *INDENT-ON* */
-
-static void
-interrupt_process (void)
-{
- rd_cp_main_t *rm = &rd_cp_main;
- vlib_main_t *vm = rm->vlib_main;
-
- vlib_process_signal_event (vm, rd_cp_process_node.index,
- RD_CP_EVENT_INTERRUPT, 0);
-}
-
-static int
-set_address_autoconfig (u32 sw_if_index, u8 enable, u8 install_default_routes)
-{
- rd_cp_main_t *rm = &rd_cp_main;
- vlib_main_t *vm = rm->vlib_main;
- vnet_main_t *vnm = rm->vnet_main;
- interface_config_t *if_config;
- interface_config_t empty_config = { 0, 0 };
- slaac_address_t *slaac_address;
- default_route_t *default_route;
-
- if (!enable)
- install_default_routes = 0;
-
- if (!vnet_sw_interface_is_api_valid (vnm, sw_if_index))
- {
- vlib_log_warn (rm->log_class, "Invalid sw_if_index");
- return 1;
- }
-
- if (!rm->enabled)
- {
- /* process kickoff */
- interrupt_process ();
- rm->enabled = 1;
- }
-
- vec_validate_init_empty (rm->config_by_sw_if_index, sw_if_index,
- empty_config);
- if_config = &rm->config_by_sw_if_index[sw_if_index];
-
- if (!if_config->enabled && enable)
- ip6_enable (sw_if_index);
-
- if ((!if_config->enabled && enable)
- || (!if_config->install_default_routes && install_default_routes))
- router_solicitation_start_stop (sw_if_index, 1);
- else if (if_config->enabled && !enable)
- router_solicitation_start_stop (sw_if_index, 0);
-
- if (if_config->enabled && !enable)
- {
- /* *INDENT-OFF* */
- pool_foreach (slaac_address, rm->slaac_address_pool,
- ({
- remove_slaac_address (vm, slaac_address);
- }));
- /* *INDENT-ON* */
- }
- if (if_config->install_default_routes && !install_default_routes)
- {
- /* *INDENT-OFF* */
- pool_foreach (default_route, rm->default_route_pool,
- ({
- remove_default_route (vm, default_route);
- }));
- /* *INDENT-ON* */
- }
-
- if_config->enabled = enable;
- if_config->install_default_routes = install_default_routes;
-
- return 0;
-}
-
-static clib_error_t *
-ip6_nd_address_autoconfig (vlib_main_t * vm,
- unformat_input_t * input, vlib_cli_command_t * cmd)
-{
- rd_cp_main_t *rm = &rd_cp_main;
- vnet_main_t *vnm = rm->vnet_main;
- clib_error_t *error = 0;
- u32 sw_if_index = ~0;
- u8 enable = 1;
- u8 default_route = 0;
-
- while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat
- (input, "%U", unformat_vnet_sw_interface, vnm, &sw_if_index))
- ;
- if (unformat (input, "default-route"))
- default_route = 1;
- if (unformat (input, "disable"))
- enable = 0;
- else
- break;
- }
-
- if (sw_if_index != ~0)
- {
- if (set_address_autoconfig (sw_if_index, enable, default_route) != 0)
- error = clib_error_return (0, "Invalid sw_if_index");
- }
- else
- error = clib_error_return (0, "Missing sw_if_index");
-
- return error;
-}
-
-/*?
- * This command is used to enable ND address autoconfiguration
- * on particular interface including setting up default routes.
- *
- * @cliexpar
- * @parblock
- * Example of how to enable ND address autoconfiguration:
- * @cliexcmd{ip6 nd address autoconfig GigabitEthernet2/0/0}
- * Example of how to enable ND address autoconfiguration
- * with setting up default routes:
- * @cliexcmd{ip6 nd address autoconfig GigabitEthernet2/0/0 default-route}
- * Example of how to disable ND address autoconfiguration:
- * @cliexcmd{ip6 nd address autoconfig GigabitEthernet2/0/0 disable}
- * @endparblock
-?*/
-/* *INDENT-OFF* */
-VLIB_CLI_COMMAND (ip6_nd_address_autoconfig_command, static) = {
- .path = "ip6 nd address autoconfig",
- .short_help = "ip6 nd address autoconfig <interface> [default-route|disable]",
- .function = ip6_nd_address_autoconfig,
-};
-/* *INDENT-ON* */
-
-static void
-vl_api_ip6_nd_address_autoconfig_t_handler (vl_api_ip6_nd_address_autoconfig_t
- * mp)
-{
- vl_api_ip6_nd_address_autoconfig_reply_t *rmp;
- u32 sw_if_index;
- int rv = 0;
-
- VALIDATE_SW_IF_INDEX (mp);
-
- sw_if_index = ntohl (mp->sw_if_index);
-
- rv =
- set_address_autoconfig (sw_if_index, mp->enable,
- mp->install_default_routes);
-
- BAD_SW_IF_INDEX_LABEL;
-
- REPLY_MACRO (VL_API_IP6_ND_ADDRESS_AUTOCONFIG_REPLY);
-}
-
-#define vl_msg_name_crc_list
-#include <vnet/ip/rd_cp.api.h>
-#undef vl_msg_name_crc_list
-
-static void
-setup_message_id_table (api_main_t * am)
-{
-#define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
- foreach_vl_msg_name_crc_rd_cp;
-#undef _
-}
-
-static clib_error_t *
-rd_cp_init (vlib_main_t * vm)
-{
- rd_cp_main_t *rm = &rd_cp_main;
- api_main_t *am = vlibapi_get_main ();
-
- rm->vlib_main = vm;
- rm->vnet_main = vnet_get_main ();
- rm->api_main = am;
- rm->node_index = rd_cp_process_node.index;
-
- rm->log_class = vlib_log_register_class ("rd_cp", 0);
-
-#define _(N,n) \
- vl_msg_api_set_handlers(VL_API_##N, #n, \
- vl_api_##n##_t_handler, \
- vl_noop_handler, \
- vl_api_##n##_t_endian, \
- vl_api_##n##_t_print, \
- sizeof(vl_api_##n##_t), 0/* do NOT trace! */);
- foreach_rd_cp_msg;
-#undef _
-
- /*
- * Set up the (msg_name, crc, message-id) table
- */
- setup_message_id_table (am);
-
- return 0;
-}
-
-VLIB_INIT_FUNCTION (rd_cp_init);
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */