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authorNeale Ranns <nranns@cisco.com>2020-09-18 14:05:45 +0000
committerOle Tr�an <otroan@employees.org>2020-09-21 17:03:52 +0000
commit6810a77da36c6750938800314c15e840ee2a8c93 (patch)
tree8527e0fc312e0d3ad21ef6a6579e3b784f53ffc6 /src/vnet/l2tp/l2tp.c
parent3f9fdd98463bd926fc78a2b366875c929058e2db (diff)
misc: Move l2tp to plugin
Type: refactor Change-Id: Ifb36eeb146b87e9e305881429d32d6879e955e1e Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'src/vnet/l2tp/l2tp.c')
-rw-r--r--src/vnet/l2tp/l2tp.c764
1 files changed, 0 insertions, 764 deletions
diff --git a/src/vnet/l2tp/l2tp.c b/src/vnet/l2tp/l2tp.c
deleted file mode 100644
index fa112ee7986..00000000000
--- a/src/vnet/l2tp/l2tp.c
+++ /dev/null
@@ -1,764 +0,0 @@
-/*
- * l2tp.c : L2TPv3 tunnel support
- *
- * Copyright (c) 2013 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 <vppinfra/error.h>
-#include <vppinfra/hash.h>
-#include <vnet/vnet.h>
-#include <vnet/ip/ip.h>
-#include <vnet/l2/l2_input.h>
-#include <vnet/ethernet/ethernet.h>
-#include <vnet/l2tp/l2tp.h>
-
-l2t_main_t l2t_main;
-
-/* packet trace format function */
-u8 *
-format_l2t_trace (u8 * s, va_list * args)
-{
- CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
- CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
- l2t_trace_t *t = va_arg (*args, l2t_trace_t *);
-
- if (t->is_user_to_network)
- s = format (s, "L2T: %U (client) -> %U (our) session %d",
- format_ip6_address, &t->client_address,
- format_ip6_address, &t->our_address, t->session_index);
- else
- s = format (s, "L2T: %U (our) -> %U (client) session %d)",
- format_ip6_address, &t->our_address,
- format_ip6_address, &t->client_address, t->session_index);
- return s;
-}
-
-u8 *
-format_l2t_session (u8 * s, va_list * args)
-{
- l2t_session_t *session = va_arg (*args, l2t_session_t *);
- l2t_main_t *lm = &l2t_main;
- u32 counter_index;
- vlib_counter_t v;
-
- s = format (s, "[%d] %U (our) %U (client) %U (sw_if_index %d)\n",
- session - lm->sessions,
- format_ip6_address, &session->our_address,
- format_ip6_address, &session->client_address,
- format_vnet_sw_interface_name, lm->vnet_main,
- vnet_get_sw_interface (lm->vnet_main, session->sw_if_index),
- session->sw_if_index);
-
- s = format (s, " local cookies %016llx %016llx remote cookie %016llx\n",
- clib_net_to_host_u64 (session->local_cookie[0]),
- clib_net_to_host_u64 (session->local_cookie[1]),
- clib_net_to_host_u64 (session->remote_cookie));
-
- s = format (s, " local session-id %d remote session-id %d\n",
- clib_net_to_host_u32 (session->local_session_id),
- clib_net_to_host_u32 (session->remote_session_id));
-
- s = format (s, " l2 specific sublayer %s\n",
- session->l2_sublayer_present ? "preset" : "absent");
-
- counter_index =
- session_index_to_counter_index (session - lm->sessions,
- SESSION_COUNTER_USER_TO_NETWORK);
-
- vlib_get_combined_counter (&lm->counter_main, counter_index, &v);
- if (v.packets != 0)
- s = format (s, " user-to-net: %llu pkts %llu bytes\n",
- v.packets, v.bytes);
-
- vlib_get_combined_counter (&lm->counter_main, counter_index + 1, &v);
-
- if (v.packets != 0)
- s = format (s, " net-to-user: %llu pkts %llu bytes\n",
- v.packets, v.bytes);
- return s;
-}
-
-static clib_error_t *
-show_l2tp_command_fn (vlib_main_t * vm,
- unformat_input_t * input, vlib_cli_command_t * cmd)
-{
- l2t_session_t *session;
- l2t_main_t *lm = &l2t_main;
- char *keystr = 0;
- int verbose = 0;
-
- if (unformat (input, "verbose") || unformat (input, "v"))
- verbose = 1;
-
- if (pool_elts (lm->sessions) == 0)
- vlib_cli_output (vm, "No l2tp sessions...");
- else
- vlib_cli_output (vm, "%u l2tp sessions...", pool_elts (lm->sessions));
-
- if (verbose)
- {
- switch (lm->lookup_type)
- {
- case L2T_LOOKUP_SRC_ADDRESS:
- keystr = "src address";
- break;
-
- case L2T_LOOKUP_DST_ADDRESS:
- keystr = "dst address";
- break;
-
- case L2T_LOOKUP_SESSION_ID:
- keystr = "session id";
- break;
-
- default:
- keystr = "BOGUS!";
- break;
- }
-
- vlib_cli_output (vm, "L2tp session lookup on %s", keystr);
-
- /* *INDENT-OFF* */
- pool_foreach (session, lm->sessions,
- ({
- vlib_cli_output (vm, "%U", format_l2t_session, session);
- }));
- /* *INDENT-ON* */
- }
-
- return 0;
-}
-
-/* *INDENT-OFF* */
-VLIB_CLI_COMMAND (show_session_detail_command, static) = {
- .path = "show l2tpv3",
- .short_help = "show l2tpv3 [verbose]",
- .function = show_l2tp_command_fn,
-};
-/* *INDENT-ON* */
-
-static clib_error_t *
-test_counters_command_fn (vlib_main_t * vm,
- unformat_input_t * input, vlib_cli_command_t * cmd)
-{
- l2t_session_t *session;
- l2t_main_t *lm = &l2t_main;
- u32 session_index;
- u32 counter_index;
- u32 nincr = 0;
- u32 thread_index = vm->thread_index;
-
- /* *INDENT-OFF* */
- pool_foreach (session, lm->sessions,
- ({
- session_index = session - lm->sessions;
- counter_index =
- session_index_to_counter_index (session_index,
- SESSION_COUNTER_USER_TO_NETWORK);
- vlib_increment_combined_counter (&lm->counter_main,
- thread_index,
- counter_index,
- 1/*pkt*/, 1111 /*bytes*/);
- vlib_increment_combined_counter (&lm->counter_main,
- thread_index,
- counter_index+1,
- 1/*pkt*/, 2222 /*bytes*/);
- nincr++;
-
- }));
- /* *INDENT-ON* */
- vlib_cli_output (vm, "Incremented %d active counters\n", nincr);
-
- return 0;
-}
-
-/* *INDENT-OFF* */
-VLIB_CLI_COMMAND (test_counters_command, static) = {
- .path = "test lt2p counters",
- .short_help = "increment all active counters",
- .function = test_counters_command_fn,
-};
-/* *INDENT-ON* */
-
-static clib_error_t *
-clear_counters_command_fn (vlib_main_t * vm,
- unformat_input_t * input, vlib_cli_command_t * cmd)
-{
- l2t_session_t *session;
- l2t_main_t *lm = &l2t_main;
- u32 session_index;
- u32 counter_index;
- u32 nincr = 0;
-
- /* *INDENT-OFF* */
- pool_foreach (session, lm->sessions,
- ({
- session_index = session - lm->sessions;
- counter_index =
- session_index_to_counter_index (session_index,
- SESSION_COUNTER_USER_TO_NETWORK);
- vlib_zero_combined_counter (&lm->counter_main, counter_index);
- vlib_zero_combined_counter (&lm->counter_main, counter_index+1);
- nincr++;
- }));
- /* *INDENT-ON* */
- vlib_cli_output (vm, "Cleared %d active counters\n", nincr);
-
- return 0;
-}
-
-/* *INDENT-OFF* */
-VLIB_CLI_COMMAND (clear_counters_command, static) = {
- .path = "clear l2tp counters",
- .short_help = "clear all active counters",
- .function = clear_counters_command_fn,
-};
-/* *INDENT-ON* */
-
-static u8 *
-format_l2tpv3_name (u8 * s, va_list * args)
-{
- l2t_main_t *lm = &l2t_main;
- u32 i = va_arg (*args, u32);
- u32 show_dev_instance = ~0;
-
- if (i < vec_len (lm->dev_inst_by_real))
- show_dev_instance = lm->dev_inst_by_real[i];
-
- if (show_dev_instance != ~0)
- i = show_dev_instance;
-
- return format (s, "l2tpv3_tunnel%d", i);
-}
-
-static int
-l2tpv3_name_renumber (vnet_hw_interface_t * hi, u32 new_dev_instance)
-{
- l2t_main_t *lm = &l2t_main;
-
- vec_validate_init_empty (lm->dev_inst_by_real, hi->dev_instance, ~0);
-
- lm->dev_inst_by_real[hi->dev_instance] = new_dev_instance;
-
- return 0;
-}
-
-/* *INDENT-OFF* */
-VNET_DEVICE_CLASS (l2tpv3_device_class,static) = {
- .name = "L2TPv3",
- .format_device_name = format_l2tpv3_name,
- .name_renumber = l2tpv3_name_renumber,
-};
-/* *INDENT-ON* */
-
-static u8 *
-format_l2tp_header_with_length (u8 * s, va_list * args)
-{
- u32 dev_instance = va_arg (*args, u32);
- s = format (s, "unimplemented dev %u", dev_instance);
- return s;
-}
-
-/* *INDENT-OFF* */
-VNET_HW_INTERFACE_CLASS (l2tpv3_hw_class) = {
- .name = "L2TPV3",
- .format_header = format_l2tp_header_with_length,
- .build_rewrite = default_build_rewrite,
- .flags = VNET_HW_INTERFACE_CLASS_FLAG_P2P,
-};
-/* *INDENT-ON* */
-
-int
-create_l2tpv3_ipv6_tunnel (l2t_main_t * lm,
- ip6_address_t * client_address,
- ip6_address_t * our_address,
- u32 local_session_id,
- u32 remote_session_id,
- u64 local_cookie,
- u64 remote_cookie,
- int l2_sublayer_present,
- u32 encap_fib_index, u32 * sw_if_index)
-{
- l2t_session_t *s = 0;
- vnet_main_t *vnm = lm->vnet_main;
- vnet_hw_interface_t *hi;
- uword *p = (uword *) ~ 0;
- u32 hw_if_index;
- l2tpv3_header_t l2tp_hdr;
- ip6_address_t *dst_address_copy, *src_address_copy;
- u32 counter_index;
-
- remote_session_id = clib_host_to_net_u32 (remote_session_id);
- local_session_id = clib_host_to_net_u32 (local_session_id);
-
- switch (lm->lookup_type)
- {
- case L2T_LOOKUP_SRC_ADDRESS:
- p = hash_get_mem (lm->session_by_src_address, client_address);
- break;
-
- case L2T_LOOKUP_DST_ADDRESS:
- p = hash_get_mem (lm->session_by_dst_address, our_address);
- break;
-
- case L2T_LOOKUP_SESSION_ID:
- p = hash_get (lm->session_by_session_id, local_session_id);
- break;
-
- default:
- ASSERT (0);
- }
-
- /* adding a session: session must not already exist */
- if (p)
- return VNET_API_ERROR_INVALID_VALUE;
-
- pool_get (lm->sessions, s);
- clib_memset (s, 0, sizeof (*s));
- clib_memcpy (&s->our_address, our_address, sizeof (s->our_address));
- clib_memcpy (&s->client_address, client_address,
- sizeof (s->client_address));
- s->local_cookie[0] = clib_host_to_net_u64 (local_cookie);
- s->remote_cookie = clib_host_to_net_u64 (remote_cookie);
- s->local_session_id = local_session_id;
- s->remote_session_id = remote_session_id;
- s->l2_sublayer_present = l2_sublayer_present;
- /* precompute l2tp header size */
- s->l2tp_hdr_size = l2_sublayer_present ?
- sizeof (l2tpv3_header_t) :
- sizeof (l2tpv3_header_t) - sizeof (l2tp_hdr.l2_specific_sublayer);
- s->admin_up = 0;
- s->encap_fib_index = encap_fib_index;
-
- /* Setup hash table entries */
- switch (lm->lookup_type)
- {
- case L2T_LOOKUP_SRC_ADDRESS:
- src_address_copy = clib_mem_alloc (sizeof (*src_address_copy));
- clib_memcpy (src_address_copy, client_address,
- sizeof (*src_address_copy));
- hash_set_mem (lm->session_by_src_address, src_address_copy,
- s - lm->sessions);
- break;
- case L2T_LOOKUP_DST_ADDRESS:
- dst_address_copy = clib_mem_alloc (sizeof (*dst_address_copy));
- clib_memcpy (dst_address_copy, our_address, sizeof (*dst_address_copy));
- hash_set_mem (lm->session_by_dst_address, dst_address_copy,
- s - lm->sessions);
- break;
- case L2T_LOOKUP_SESSION_ID:
- hash_set (lm->session_by_session_id, local_session_id,
- s - lm->sessions);
- break;
-
- default:
- ASSERT (0);
- }
-
- /* validate counters */
- counter_index =
- session_index_to_counter_index (s - lm->sessions,
- SESSION_COUNTER_USER_TO_NETWORK);
- vlib_validate_combined_counter (&lm->counter_main, counter_index);
- vlib_validate_combined_counter (&lm->counter_main, counter_index + 1);
-
- if (vec_len (lm->free_l2tpv3_tunnel_hw_if_indices) > 0)
- {
- hw_if_index = lm->free_l2tpv3_tunnel_hw_if_indices
- [vec_len (lm->free_l2tpv3_tunnel_hw_if_indices) - 1];
- _vec_len (lm->free_l2tpv3_tunnel_hw_if_indices) -= 1;
-
- hi = vnet_get_hw_interface (vnm, hw_if_index);
- hi->dev_instance = s - lm->sessions;
- hi->hw_instance = hi->dev_instance;
- }
- else
- {
- hw_if_index = vnet_register_interface
- (vnm, l2tpv3_device_class.index, s - lm->sessions,
- l2tpv3_hw_class.index, s - lm->sessions);
- hi = vnet_get_hw_interface (vnm, hw_if_index);
- hi->output_node_index = l2t_encap_node.index;
- /* $$$$ initialize custom dispositions, if needed */
- }
-
- s->hw_if_index = hw_if_index;
- s->sw_if_index = hi->sw_if_index;
-
- if (sw_if_index)
- *sw_if_index = hi->sw_if_index;
-
- if (!lm->proto_registered)
- {
- ip6_register_protocol (IP_PROTOCOL_L2TP, l2t_decap_local_node.index);
- lm->proto_registered = true;
- }
-
- return 0;
-}
-
-static clib_error_t *
-create_l2tpv3_tunnel_command_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
-{
- ip6_address_t client_address, our_address;
- unformat_input_t _line_input, *line_input = &_line_input;
- l2t_main_t *lm = &l2t_main;
- u64 local_cookie = (u64) ~ 0, remote_cookie = (u64) ~ 0;
- u32 local_session_id = 1, remote_session_id = 1;
- int our_address_set = 0, client_address_set = 0;
- int l2_sublayer_present = 0;
- int rv;
- u32 sw_if_index;
- u32 encap_fib_id = ~0;
- u32 encap_fib_index = ~0;
- clib_error_t *error = NULL;
-
- /* 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, "client %U",
- unformat_ip6_address, &client_address))
- client_address_set = 1;
- else if (unformat (line_input, "our %U",
- unformat_ip6_address, &our_address))
- our_address_set = 1;
- else if (unformat (line_input, "local-cookie %llx", &local_cookie))
- ;
- else if (unformat (line_input, "remote-cookie %llx", &remote_cookie))
- ;
- else if (unformat (line_input, "local-session-id %d",
- &local_session_id))
- ;
- else if (unformat (line_input, "remote-session-id %d",
- &remote_session_id))
- ;
- else if (unformat (line_input, "fib-id %d", &encap_fib_id))
- ;
- else if (unformat (line_input, "l2-sublayer-present"))
- l2_sublayer_present = 1;
- else
- {
- error = clib_error_return (0, "parse error: '%U'",
- format_unformat_error, line_input);
- goto done;
- }
- }
-
- if (encap_fib_id != ~0)
- {
- uword *p;
- ip6_main_t *im = &ip6_main;
- if (!(p = hash_get (im->fib_index_by_table_id, encap_fib_id)))
- {
- error = clib_error_return (0, "No fib with id %d", encap_fib_id);
- goto done;
- }
- encap_fib_index = p[0];
- }
- else
- {
- encap_fib_index = ~0;
- }
-
- if (our_address_set == 0)
- {
- error = clib_error_return (0, "our address not specified");
- goto done;
- }
- if (client_address_set == 0)
- {
- error = clib_error_return (0, "client address not specified");
- goto done;
- }
-
- rv = create_l2tpv3_ipv6_tunnel (lm, &client_address, &our_address,
- local_session_id, remote_session_id,
- local_cookie, remote_cookie,
- l2_sublayer_present,
- encap_fib_index, &sw_if_index);
- switch (rv)
- {
- case 0:
- vlib_cli_output (vm, "%U\n", format_vnet_sw_if_index_name,
- vnet_get_main (), sw_if_index);
- break;
- case VNET_API_ERROR_INVALID_VALUE:
- error = clib_error_return (0, "session already exists...");
- goto done;
-
- case VNET_API_ERROR_NO_SUCH_ENTRY:
- error = clib_error_return (0, "session does not exist...");
- goto done;
-
- default:
- error = clib_error_return (0, "l2tp_session_add_del returned %d", rv);
- goto done;
- }
-
-done:
- unformat_free (line_input);
-
- return error;
-}
-
-/* *INDENT-OFF* */
-VLIB_CLI_COMMAND (create_l2tpv3_tunnel_command, static) =
-{
- .path = "create l2tpv3 tunnel",
- .short_help =
- "create l2tpv3 tunnel client <ip6> our <ip6> local-cookie <hex> remote-cookie <hex> local-session <dec> remote-session <dec>",
- .function = create_l2tpv3_tunnel_command_fn,
-};
-/* *INDENT-ON* */
-
-int
-l2tpv3_set_tunnel_cookies (l2t_main_t * lm,
- u32 sw_if_index,
- u64 new_local_cookie, u64 new_remote_cookie)
-{
- l2t_session_t *s;
- vnet_hw_interface_t *hi;
- vnet_main_t *vnm = vnet_get_main ();
- hi = vnet_get_sup_hw_interface (vnm, sw_if_index);
-
- if (pool_is_free_index (lm->sessions, hi->dev_instance))
- return VNET_API_ERROR_INVALID_VALUE;
-
- s = pool_elt_at_index (lm->sessions, hi->dev_instance);
-
- s->local_cookie[1] = s->local_cookie[0];
- s->local_cookie[0] = clib_host_to_net_u64 (new_local_cookie);
- s->remote_cookie = clib_host_to_net_u64 (new_remote_cookie);
-
- return 0;
-}
-
-
-static clib_error_t *
-set_l2tp_tunnel_cookie_command_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
-{
- l2t_main_t *lm = &l2t_main;
- vnet_main_t *vnm = vnet_get_main ();
- u32 sw_if_index = ~0;
- u64 local_cookie = (u64) ~ 0, remote_cookie = (u64) ~ 0;
-
- int rv;
-
- while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat (input, "%U", unformat_vnet_sw_interface, vnm,
- &sw_if_index))
- ;
- else if (unformat (input, "local %llx", &local_cookie))
- ;
- else if (unformat (input, "remote %llx", &remote_cookie))
- ;
- else
- break;
- }
- if (sw_if_index == ~0)
- return clib_error_return (0, "unknown interface");
- if (local_cookie == ~0)
- return clib_error_return (0, "local cookie required");
- if (remote_cookie == ~0)
- return clib_error_return (0, "remote cookie required");
-
- rv = l2tpv3_set_tunnel_cookies (lm, sw_if_index,
- local_cookie, remote_cookie);
-
- switch (rv)
- {
- case 0:
- break;
-
- case VNET_API_ERROR_INVALID_SW_IF_INDEX:
- return clib_error_return (0, "invalid interface");
-
- default:
- return clib_error_return (0, "l2tp_session_set_cookies returned %d",
- rv);
- }
-
- return 0;
-}
-
-/* *INDENT-OFF* */
-VLIB_CLI_COMMAND (set_l2tp_tunnel_cookie_command, static) =
-{
- .path = "set l2tpv3 tunnel cookie",
- .short_help =
- "set l2tpv3 tunnel cookie <intfc> local <hex> remote <hex>",
- .function = set_l2tp_tunnel_cookie_command_fn,
-};
-/* *INDENT-ON* */
-
-int
-l2tpv3_interface_enable_disable (vnet_main_t * vnm,
- u32 sw_if_index, int enable_disable)
-{
-
- if (pool_is_free_index (vnm->interface_main.sw_interfaces, sw_if_index))
- return VNET_API_ERROR_INVALID_SW_IF_INDEX;
-
- vnet_feature_enable_disable ("ip6-unicast", "l2tp-decap", sw_if_index,
- enable_disable, 0, 0);
- return 0;
-}
-
-/* Enable/disable L2TPv3 intercept on IP6 forwarding path */
-static clib_error_t *
-set_ip6_l2tpv3 (vlib_main_t * vm,
- unformat_input_t * input, vlib_cli_command_t * cmd)
-{
- u32 sw_if_index = ~0;
- int is_add = 1;
- int rv;
- vnet_main_t *vnm = vnet_get_main ();
-
- while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat (input, "%U", unformat_vnet_sw_interface, vnm,
- &sw_if_index))
- ;
- else if (unformat (input, "del"))
- is_add = 0;
- else
- break;
- }
-
- if (sw_if_index == ~0)
- return clib_error_return (0, "interface required");
-
- rv = l2tpv3_interface_enable_disable (vnm, sw_if_index, is_add);
-
- switch (rv)
- {
- case 0:
- break;
-
- case VNET_API_ERROR_INVALID_SW_IF_INDEX:
- return clib_error_return (0, "invalid interface");
-
- default:
- return clib_error_return (0,
- "l2tp_interface_enable_disable returned %d",
- rv);
- }
- return 0;
-}
-
-/* *INDENT-OFF* */
-VLIB_CLI_COMMAND (set_interface_ip6_l2tpv3, static) =
-{
- .path = "set interface ip6 l2tpv3",
- .function = set_ip6_l2tpv3,
- .short_help = "set interface ip6 l2tpv3 <intfc> [del]",
-};
-/* *INDENT-ON* */
-
-static clib_error_t *
-l2tp_config (vlib_main_t * vm, unformat_input_t * input)
-{
- l2t_main_t *lm = &l2t_main;
-
- while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat (input, "lookup-v6-src"))
- lm->lookup_type = L2T_LOOKUP_SRC_ADDRESS;
- else if (unformat (input, "lookup-v6-dst"))
- lm->lookup_type = L2T_LOOKUP_DST_ADDRESS;
- else if (unformat (input, "lookup-session-id"))
- lm->lookup_type = L2T_LOOKUP_SESSION_ID;
- else
- return clib_error_return (0, "unknown input `%U'",
- format_unformat_error, input);
- }
- return 0;
-}
-
-VLIB_CONFIG_FUNCTION (l2tp_config, "l2tp");
-
-
-clib_error_t *
-l2tp_sw_interface_up_down (vnet_main_t * vnm, u32 sw_if_index, u32 flags)
-{
- l2t_main_t *lm = &l2t_main;
- vnet_hw_interface_t *hi = vnet_get_sup_hw_interface (vnm, sw_if_index);
- if (hi->hw_class_index != l2tpv3_hw_class.index)
- return 0;
-
- u32 session_index = hi->dev_instance;
- l2t_session_t *s = pool_elt_at_index (lm->sessions, session_index);
- s->admin_up = ! !(flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP);
- return 0;
-}
-
-VNET_SW_INTERFACE_ADMIN_UP_DOWN_FUNCTION (l2tp_sw_interface_up_down);
-
-clib_error_t *
-l2tp_init (vlib_main_t * vm)
-{
- l2t_main_t *lm = &l2t_main;
- ip_main_t *im = &ip_main;
- ip_protocol_info_t *pi;
-
- lm->vnet_main = vnet_get_main ();
- lm->vlib_main = vm;
- lm->lookup_type = L2T_LOOKUP_DST_ADDRESS;
-
- lm->session_by_src_address = hash_create_mem
- (0, sizeof (ip6_address_t) /* key bytes */ ,
- sizeof (u32) /* value bytes */ );
- lm->session_by_dst_address = hash_create_mem
- (0, sizeof (ip6_address_t) /* key bytes */ ,
- sizeof (u32) /* value bytes */ );
- lm->session_by_session_id = hash_create (0, sizeof (uword));
-
- pi = ip_get_protocol_info (im, IP_PROTOCOL_L2TP);
- pi->unformat_pg_edit = unformat_pg_l2tp_header;
-
- lm->proto_registered = false;
-
- /* insure these nodes are included in build */
- l2tp_encap_init (vm);
-
- return 0;
-}
-
-VLIB_INIT_FUNCTION (l2tp_init);
-
-clib_error_t *
-l2tp_worker_init (vlib_main_t * vm)
-{
- l2tp_encap_init (vm);
-
- return 0;
-}
-
-VLIB_WORKER_INIT_FUNCTION (l2tp_worker_init);
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */