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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
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')
-rw-r--r--src/vnet/l2tp/FEATURE.yaml8
-rw-r--r--src/vnet/l2tp/decap.c301
-rw-r--r--src/vnet/l2tp/encap.c235
-rw-r--r--src/vnet/l2tp/l2tp.api115
-rw-r--r--src/vnet/l2tp/l2tp.c764
-rw-r--r--src/vnet/l2tp/l2tp.h148
-rw-r--r--src/vnet/l2tp/l2tp_api.c273
-rw-r--r--src/vnet/l2tp/packet.h44
-rw-r--r--src/vnet/l2tp/pg.c106
9 files changed, 0 insertions, 1994 deletions
diff --git a/src/vnet/l2tp/FEATURE.yaml b/src/vnet/l2tp/FEATURE.yaml
deleted file mode 100644
index 58df9b2215e..00000000000
--- a/src/vnet/l2tp/FEATURE.yaml
+++ /dev/null
@@ -1,8 +0,0 @@
----
-name: L2TPv3
-maintainer: unmaintained
-features:
- - L2TPv3 over IPv6
-description: "An initial and incomplete implementation of L2TPv3 (RFC3931)."
-state: experimental
-properties: [API, CLI]
diff --git a/src/vnet/l2tp/decap.c b/src/vnet/l2tp/decap.c
deleted file mode 100644
index 787cc115a7e..00000000000
--- a/src/vnet/l2tp/decap.c
+++ /dev/null
@@ -1,301 +0,0 @@
-/*
- * decap.c : L2TPv3 tunnel decapsulation
- *
- * 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/ethernet/ethernet.h>
-#include <vnet/l2tp/l2tp.h>
-#include <vnet/l2/l2_input.h>
-
-/* Statistics (not really errors) */
-#define foreach_l2t_decap_error \
-_(USER_TO_NETWORK, "L2TP user (ip6) to L2 network pkts") \
-_(SESSION_ID_MISMATCH, "l2tpv3 local session id mismatches") \
-_(COOKIE_MISMATCH, "l2tpv3 local cookie mismatches") \
-_(NO_SESSION, "l2tpv3 session not found") \
-_(ADMIN_DOWN, "l2tpv3 tunnel is down")
-
-static char *l2t_decap_error_strings[] = {
-#define _(sym,string) string,
- foreach_l2t_decap_error
-#undef _
-};
-
-typedef enum
-{
-#define _(sym,str) L2T_DECAP_ERROR_##sym,
- foreach_l2t_decap_error
-#undef _
- L2T_DECAP_N_ERROR,
-} l2t_DECAP_error_t;
-
-typedef enum
-{
- L2T_DECAP_NEXT_DROP,
- L2T_DECAP_NEXT_L2_INPUT,
- L2T_DECAP_N_NEXT,
- /* Pseudo next index */
- L2T_DECAP_NEXT_NO_INTERCEPT = L2T_DECAP_N_NEXT,
-} l2t_decap_next_t;
-
-#define NSTAGES 3
-
-static inline void
-stage0 (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_buffer_t * b)
-{
- vlib_prefetch_buffer_header (b, STORE);
- /* l2tpv3 header is a long way away, need 2 cache lines */
- CLIB_PREFETCH (b->data, 2 * CLIB_CACHE_LINE_BYTES, STORE);
-}
-
-static inline void
-stage1 (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_buffer_t * b)
-{
- l2t_main_t *lm = &l2t_main;
- ip6_header_t *ip6 = vlib_buffer_get_current (b);
- u32 session_index;
- uword *p = 0;
- l2tpv3_header_t *l2t;
-
- /* Not L2tpv3 (0x73, 0t115)? Use the normal path. */
- if (PREDICT_FALSE (ip6->protocol != IP_PROTOCOL_L2TP))
- {
- vnet_buffer (b)->l2t.next_index = L2T_DECAP_NEXT_NO_INTERCEPT;
- return;
- }
-
- /* Make up your minds, people... */
- switch (lm->lookup_type)
- {
- case L2T_LOOKUP_SRC_ADDRESS:
- p = hash_get_mem (lm->session_by_src_address, &ip6->src_address);
- break;
- case L2T_LOOKUP_DST_ADDRESS:
- p = hash_get_mem (lm->session_by_dst_address, &ip6->dst_address);
- break;
- case L2T_LOOKUP_SESSION_ID:
- l2t = (l2tpv3_header_t *) (ip6 + 1);
- p = hash_get (lm->session_by_session_id, l2t->session_id);
- break;
- default:
- ASSERT (0);
- }
-
- if (PREDICT_FALSE (p == 0))
- {
- vnet_buffer (b)->l2t.next_index = L2T_DECAP_NEXT_NO_INTERCEPT;
- return;
- }
- else
- {
- session_index = p[0];
- }
-
- /* Remember mapping index, prefetch the mini counter */
- vnet_buffer (b)->l2t.next_index = L2T_DECAP_NEXT_L2_INPUT;
- vnet_buffer (b)->l2t.session_index = session_index;
-
- /* $$$$$ prefetch counter */
-}
-
-static inline u32
-last_stage (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_buffer_t * b)
-{
- l2t_main_t *lm = &l2t_main;
- ip6_header_t *ip6 = vlib_buffer_get_current (b);
- vlib_node_t *n = vlib_get_node (vm, node->node_index);
- u32 node_counter_base_index = n->error_heap_index;
- vlib_error_main_t *em = &vm->error_main;
- l2tpv3_header_t *l2tp;
- u32 counter_index;
- l2t_session_t *session = 0;
- u32 session_index;
- u32 next_index;
- u8 l2tp_decap_local = (l2t_decap_local_node.index == n->index);
-
- /* Other-than-output pkt? We're done... */
- if (vnet_buffer (b)->l2t.next_index != L2T_DECAP_NEXT_L2_INPUT)
- {
- next_index = vnet_buffer (b)->l2t.next_index;
- goto done;
- }
-
- em->counters[node_counter_base_index + L2T_DECAP_ERROR_USER_TO_NETWORK] +=
- 1;
-
- session_index = vnet_buffer (b)->l2t.session_index;
-
- counter_index =
- session_index_to_counter_index (session_index,
- SESSION_COUNTER_USER_TO_NETWORK);
-
- /* per-mapping byte stats include the ethernet header */
- vlib_increment_combined_counter (&lm->counter_main,
- vlib_get_thread_index (),
- counter_index, 1 /* packet_increment */ ,
- vlib_buffer_length_in_chain (vm, b) +
- sizeof (ethernet_header_t));
-
- session = pool_elt_at_index (lm->sessions, session_index);
-
- l2tp = vlib_buffer_get_current (b) + sizeof (*ip6);
-
- if (PREDICT_FALSE (l2tp->session_id != session->local_session_id))
- {
- /* Key matched but session id does not. Assume packet is not for us. */
- em->counters[node_counter_base_index +
- L2T_DECAP_ERROR_SESSION_ID_MISMATCH] += 1;
- next_index = L2T_DECAP_NEXT_NO_INTERCEPT;
- goto done;
- }
-
- if (PREDICT_FALSE (l2tp->cookie != session->local_cookie[0]))
- {
- if (l2tp->cookie != session->local_cookie[1])
- {
- /* Key and session ID matched, but cookie doesn't. Drop this packet. */
- b->error = node->errors[L2T_DECAP_ERROR_COOKIE_MISMATCH];
- next_index = L2T_DECAP_NEXT_DROP;
- goto done;
- }
- }
-
- vnet_buffer (b)->sw_if_index[VLIB_RX] = session->sw_if_index;
-
- if (PREDICT_FALSE (!(session->admin_up)))
- {
- b->error = node->errors[L2T_DECAP_ERROR_ADMIN_DOWN];
- next_index = L2T_DECAP_NEXT_DROP;
- goto done;
- }
-
- /* strip the ip6 and L2TP header */
- vlib_buffer_advance (b, sizeof (*ip6) + session->l2tp_hdr_size);
-
- /* Required to make the l2 tag push / pop code work on l2 subifs */
- vnet_update_l2_len (b);
-
- if (PREDICT_FALSE (b->flags & VLIB_BUFFER_IS_TRACED))
- {
- l2t_trace_t *t = vlib_add_trace (vm, node, b, sizeof (*t));
- t->is_user_to_network = 1;
- t->our_address.as_u64[0] = ip6->dst_address.as_u64[0];
- t->our_address.as_u64[1] = ip6->dst_address.as_u64[1];
- t->client_address.as_u64[0] = ip6->src_address.as_u64[0];
- t->client_address.as_u64[1] = ip6->src_address.as_u64[1];
- t->session_index = session_index;
- }
-
- return L2T_DECAP_NEXT_L2_INPUT;
-
-done:
- if (next_index == L2T_DECAP_NEXT_NO_INTERCEPT)
- {
- /* Small behavioral change between l2tp-decap and l2tp-decap-local */
- if (l2tp_decap_local)
- {
- b->error = node->errors[L2T_DECAP_ERROR_NO_SESSION];
- next_index = L2T_DECAP_NEXT_DROP;
- }
- else
- {
- /* Go to next node on the ip6 configuration chain */
- if (PREDICT_TRUE (session != 0))
- vnet_feature_next (&next_index, b);
- }
- }
-
- if (PREDICT_FALSE (b->flags & VLIB_BUFFER_IS_TRACED))
- {
- l2t_trace_t *t = vlib_add_trace (vm, node, b, sizeof (*t));
- t->is_user_to_network = 1;
- t->our_address.as_u64[0] = ip6->dst_address.as_u64[0];
- t->our_address.as_u64[1] = ip6->dst_address.as_u64[1];
- t->client_address.as_u64[0] = ip6->src_address.as_u64[0];
- t->client_address.as_u64[1] = ip6->src_address.as_u64[1];
- t->session_index = ~0;
- }
- return next_index;
-}
-
-#include <vnet/pipeline.h>
-
-VLIB_NODE_FN (l2t_decap_node) (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
-{
- return dispatch_pipeline (vm, node, frame);
-}
-
-/*
- * l2tp-decap and l2tp-decap-local have very slightly different behavior.
- * When a packet has no associated session l2tp-decap let it go to ip6 forward,
- * while l2tp-decap-local drops it.
- */
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (l2t_decap_node) = {
- .name = "l2tp-decap",
- .vector_size = sizeof (u32),
- .format_trace = format_l2t_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
-
- .n_errors = ARRAY_LEN(l2t_decap_error_strings),
- .error_strings = l2t_decap_error_strings,
-
- .n_next_nodes = L2T_DECAP_N_NEXT,
-
- /* edit / add dispositions here */
- .next_nodes = {
- [L2T_DECAP_NEXT_L2_INPUT] = "l2-input",
- [L2T_DECAP_NEXT_DROP] = "error-drop",
- },
-};
-/* *INDENT-ON* */
-
-extern vlib_node_function_t l2t_decap_node_fn;
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (l2t_decap_local_node) = {
- .function = l2t_decap_node_fn,
- .name = "l2tp-decap-local",
- .vector_size = sizeof (u32),
- .format_trace = format_l2t_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
-
- .n_errors = ARRAY_LEN(l2t_decap_error_strings),
- .error_strings = l2t_decap_error_strings,
-
- .n_next_nodes = L2T_DECAP_N_NEXT,
-
- /* edit / add dispositions here */
- .next_nodes = {
- [L2T_DECAP_NEXT_L2_INPUT] = "l2-input",
- [L2T_DECAP_NEXT_DROP] = "error-drop",
- },
-};
-/* *INDENT-ON* */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vnet/l2tp/encap.c b/src/vnet/l2tp/encap.c
deleted file mode 100644
index 8863ddfa20d..00000000000
--- a/src/vnet/l2tp/encap.c
+++ /dev/null
@@ -1,235 +0,0 @@
-/*
- * encap.c : L2TPv3 tunnel encapsulation
- *
- * 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/ethernet/ethernet.h>
-#include <vnet/l2tp/l2tp.h>
-
-/* Statistics (not really errors) */
-#define foreach_l2t_encap_error \
-_(NETWORK_TO_USER, "L2TP L2 network to user (ip6) pkts") \
-_(LOOKUP_FAIL_TO_L3, "L2TP L2 session lookup failed pkts") \
-_(ADMIN_DOWN, "L2TP tunnel is down")
-
-static char *l2t_encap_error_strings[] = {
-#define _(sym,string) string,
- foreach_l2t_encap_error
-#undef _
-};
-
-typedef enum
-{
-#define _(sym,str) L2T_ENCAP_ERROR_##sym,
- foreach_l2t_encap_error
-#undef _
- L2T_ENCAP_N_ERROR,
-} l2t_encap_error_t;
-
-
-typedef enum
-{
- L2T_ENCAP_NEXT_DROP,
- L2T_ENCAP_NEXT_IP6_LOOKUP,
- L2T_ENCAP_N_NEXT,
-} l2t_encap_next_t;
-
-typedef struct
-{
- u32 cached_session_index;
- u32 cached_sw_if_index;
- vnet_main_t *vnet_main;
-} l2tp_encap_runtime_t;
-
-extern vlib_node_registration_t l2t_encap_node;
-
-#define NSTAGES 3
-
-static inline void
-stage0 (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_buffer_t * b)
-{
- vlib_prefetch_buffer_header (b, STORE);
- CLIB_PREFETCH (b->data, 2 * CLIB_CACHE_LINE_BYTES, STORE);
-}
-
-static inline void
-stage1 (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_buffer_t * b)
-{
- l2tp_encap_runtime_t *rt = (void *) node->runtime_data;
- vnet_hw_interface_t *hi;
-
- u32 sw_if_index = vnet_buffer (b)->sw_if_index[VLIB_TX];
- u32 session_index = rt->cached_session_index;
-
- if (PREDICT_FALSE (rt->cached_sw_if_index != sw_if_index))
- {
- hi = vnet_get_sup_hw_interface (rt->vnet_main, sw_if_index);
- session_index = rt->cached_session_index = hi->dev_instance;
- rt->cached_sw_if_index = sw_if_index;
- }
-
- /* Remember mapping index, prefetch the mini counter */
- vnet_buffer (b)->l2t.next_index = L2T_ENCAP_NEXT_IP6_LOOKUP;
- vnet_buffer (b)->l2t.session_index = session_index;
-
- /* $$$$ prefetch counter... */
-}
-
-static inline u32
-last_stage (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_buffer_t * b)
-{
- l2t_main_t *lm = &l2t_main;
- vlib_node_t *n = vlib_get_node (vm, l2t_encap_node.index);
- u32 node_counter_base_index = n->error_heap_index;
- vlib_error_main_t *em = &vm->error_main;
- l2tpv3_header_t *l2tp;
- u32 session_index;
- u32 counter_index;
- l2t_session_t *s;
- ip6_header_t *ip6;
- u16 payload_length;
- u32 next_index = L2T_ENCAP_NEXT_IP6_LOOKUP;
-
- /* Other-than-output pkt? We're done... */
- if (vnet_buffer (b)->l2t.next_index != L2T_ENCAP_NEXT_IP6_LOOKUP)
- return vnet_buffer (b)->l2t.next_index;
-
- em->counters[node_counter_base_index + L2T_ENCAP_ERROR_NETWORK_TO_USER] +=
- 1;
-
- session_index = vnet_buffer (b)->l2t.session_index;
-
- counter_index =
- session_index_to_counter_index (session_index,
- SESSION_COUNTER_NETWORK_TO_USER);
-
- /* per-mapping byte stats include the ethernet header */
- vlib_increment_combined_counter (&lm->counter_main,
- vlib_get_thread_index (),
- counter_index, 1 /* packet_increment */ ,
- vlib_buffer_length_in_chain (vm, b));
-
- s = pool_elt_at_index (lm->sessions, session_index);
-
- vnet_buffer (b)->sw_if_index[VLIB_TX] = s->encap_fib_index;
-
- /* Paint on an l2tpv3 hdr */
- vlib_buffer_advance (b, -(s->l2tp_hdr_size));
- l2tp = vlib_buffer_get_current (b);
-
- l2tp->session_id = s->remote_session_id;
- l2tp->cookie = s->remote_cookie;
- if (PREDICT_FALSE (s->l2_sublayer_present))
- {
- l2tp->l2_specific_sublayer = 0;
- }
-
- /* Paint on an ip6 header */
- vlib_buffer_advance (b, -(sizeof (*ip6)));
- ip6 = vlib_buffer_get_current (b);
-
- if (PREDICT_FALSE (!(s->admin_up)))
- {
- b->error = node->errors[L2T_ENCAP_ERROR_ADMIN_DOWN];
- next_index = L2T_ENCAP_NEXT_DROP;
- goto done;
- }
-
- ip6->ip_version_traffic_class_and_flow_label =
- clib_host_to_net_u32 (0x6 << 28);
-
- /* calculate ip6 payload length */
- payload_length = vlib_buffer_length_in_chain (vm, b);
- payload_length -= sizeof (*ip6);
-
- ip6->payload_length = clib_host_to_net_u16 (payload_length);
- ip6->protocol = IP_PROTOCOL_L2TP;
- ip6->hop_limit = 0xff;
- ip6->src_address.as_u64[0] = s->our_address.as_u64[0];
- ip6->src_address.as_u64[1] = s->our_address.as_u64[1];
- ip6->dst_address.as_u64[0] = s->client_address.as_u64[0];
- ip6->dst_address.as_u64[1] = s->client_address.as_u64[1];
-
-
-done:
- if (PREDICT_FALSE (b->flags & VLIB_BUFFER_IS_TRACED))
- {
- l2t_trace_t *t = vlib_add_trace (vm, node, b, sizeof (*t));
- t->is_user_to_network = 0;
- t->our_address.as_u64[0] = ip6->src_address.as_u64[0];
- t->our_address.as_u64[1] = ip6->src_address.as_u64[1];
- t->client_address.as_u64[0] = ip6->dst_address.as_u64[0];
- t->client_address.as_u64[1] = ip6->dst_address.as_u64[1];
- t->session_index = session_index;
- }
-
- return next_index;
-}
-
-#include <vnet/pipeline.h>
-
-VLIB_NODE_FN (l2t_encap_node) (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
-{
- return dispatch_pipeline (vm, node, frame);
-}
-
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (l2t_encap_node) = {
- .name = "l2tp-encap",
- .vector_size = sizeof (u32),
- .format_trace = format_l2t_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
- .runtime_data_bytes = sizeof (l2tp_encap_runtime_t),
-
- .n_errors = ARRAY_LEN(l2t_encap_error_strings),
- .error_strings = l2t_encap_error_strings,
-
- .n_next_nodes = L2T_ENCAP_N_NEXT,
-
- /* add dispositions here */
- .next_nodes = {
- [L2T_ENCAP_NEXT_IP6_LOOKUP] = "ip6-lookup",
- [L2T_ENCAP_NEXT_DROP] = "error-drop",
- },
-};
-/* *INDENT-ON* */
-
-#ifndef CLIB_MARCH_VARIANT
-void
-l2tp_encap_init (vlib_main_t * vm)
-{
- l2tp_encap_runtime_t *rt;
-
- rt = vlib_node_get_runtime_data (vm, l2t_encap_node.index);
- rt->vnet_main = vnet_get_main ();
- rt->cached_sw_if_index = (u32) ~ 0;
- rt->cached_session_index = (u32) ~ 0;
-}
-#endif /* CLIB_MARCH_VARIANT */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vnet/l2tp/l2tp.api b/src/vnet/l2tp/l2tp.api
deleted file mode 100644
index 618c4122fd6..00000000000
--- a/src/vnet/l2tp/l2tp.api
+++ /dev/null
@@ -1,115 +0,0 @@
-/*
- * Copyright (c) 2015-2016 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.
- */
-
-option version = "2.0.0";
-
-import "vnet/interface_types.api";
-import "vnet/ethernet/ethernet_types.api";
-import "vnet/ip/ip_types.api";
-
-/** \brief l2tpv3 tunnel interface create request
- @param client_index - opaque cookie to identify the sender
- @param context - sender context, to match reply w/ request
- @param client_address - remote client tunnel ip address
- @param client_address - local tunnel ip address
- @param is_ipv6 - ipv6 if non-zero, else ipv4
- @param local_session_id - local tunnel session id
- @param remote_session_id - remote tunnel session id
- @param local_cookie - local tunnel cookie
- @param l2_sublayer_present - l2 sublayer is present in packets if non-zero
- @param encap_vrf_id - fib identifier used for outgoing encapsulated packets
-*/
-define l2tpv3_create_tunnel
-{
- u32 client_index;
- u32 context;
- vl_api_address_t client_address;
- vl_api_address_t our_address;
- u32 local_session_id;
- u32 remote_session_id;
- u64 local_cookie;
- u64 remote_cookie;
- bool l2_sublayer_present;
- u32 encap_vrf_id;
-};
-
-/** \brief l2tpv3 tunnel interface create response
- @param context - sender context, to match reply w/ request
- @param retval - return code for the request
- @param sw_if_index - index of the new tunnel interface
-*/
-define l2tpv3_create_tunnel_reply
-{
- u32 context;
- i32 retval;
- vl_api_interface_index_t sw_if_index;
-};
-
-autoreply define l2tpv3_set_tunnel_cookies
-{
- u32 client_index;
- u32 context;
- vl_api_interface_index_t sw_if_index;
- u64 new_local_cookie;
- u64 new_remote_cookie;
-};
-
-define sw_if_l2tpv3_tunnel_details
-{
- u32 context;
- vl_api_interface_index_t sw_if_index;
- string interface_name[64];
- vl_api_address_t client_address;
- vl_api_address_t our_address;
- u32 local_session_id;
- u32 remote_session_id;
- u64 local_cookie[2];
- u64 remote_cookie;
- bool l2_sublayer_present;
-};
-
-define sw_if_l2tpv3_tunnel_dump
-{
- u32 client_index;
- u32 context;
-};
-
-autoreply define l2tpv3_interface_enable_disable
-{
- u32 client_index;
- u32 context;
- bool enable_disable;
- vl_api_interface_index_t sw_if_index;
-};
-
-enum l2t_lookup_key : u8
-{
- L2T_LOOKUP_KEY_API_SRC_ADDR = 0,
- L2T_LOOKUP_KEY_API_DST_ADDR = 1,
- L2T_LOOKUP_KEY_API_SESSION_ID = 2,
-};
-
-autoreply define l2tpv3_set_lookup_key
-{
- u32 client_index;
- u32 context;
- vl_api_l2t_lookup_key_t key;
-};
-
-/*
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
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:
- */
diff --git a/src/vnet/l2tp/l2tp.h b/src/vnet/l2tp/l2tp.h
deleted file mode 100644
index 49873380057..00000000000
--- a/src/vnet/l2tp/l2tp.h
+++ /dev/null
@@ -1,148 +0,0 @@
-/*
- * l2tp.h : 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.
- */
-
-#ifndef __included_l2tp_h__
-#define __included_l2tp_h__
-
-#include <vlib/vlib.h>
-#include <vnet/ip/ip.h>
-#include <vnet/l2tp/packet.h>
-
-typedef struct
-{
- /* ip6 addresses */
- ip6_address_t our_address;
- ip6_address_t client_address;
-
- /* l2tpv3 header parameters */
- u64 local_cookie[2];
- u64 remote_cookie;
- u32 local_session_id;
- u32 remote_session_id;
-
- /* tunnel interface */
- u32 hw_if_index;
- u32 sw_if_index;
-
- /* fib index used for outgoing encapsulated packets */
- u32 encap_fib_index;
-
- u8 l2tp_hdr_size;
- u8 l2_sublayer_present;
- u8 cookie_flags; /* in host byte order */
-
- u8 admin_up;
-} l2t_session_t;
-
-typedef enum
-{
- L2T_LOOKUP_SRC_ADDRESS = 0,
- L2T_LOOKUP_DST_ADDRESS,
- L2T_LOOKUP_SESSION_ID,
-} ip6_to_l2_lookup_t;
-
-typedef struct
-{
- /* session pool */
- l2t_session_t *sessions;
-
- /* ip6 -> l2 hash tables. Make up your minds, people... */
- uword *session_by_src_address;
- uword *session_by_dst_address;
- uword *session_by_session_id;
-
- ip6_to_l2_lookup_t lookup_type;
-
- /* Counters */
- vlib_combined_counter_main_t counter_main;
-
- /* vector of free l2tpv3 tunnel interfaces */
- u32 *free_l2tpv3_tunnel_hw_if_indices;
-
- /* show device instance by real device instance */
- u32 *dev_inst_by_real;
-
- /* convenience */
- vlib_main_t *vlib_main;
- vnet_main_t *vnet_main;
-
- bool proto_registered;
-
-} l2t_main_t;
-
-/* Packet trace structure */
-typedef struct
-{
- int is_user_to_network;
- u32 session_index;
- ip6_address_t our_address;
- ip6_address_t client_address;
-} l2t_trace_t;
-
-extern l2t_main_t l2t_main;
-extern vlib_node_registration_t l2t_encap_node;
-extern vlib_node_registration_t l2t_decap_node;
-extern vlib_node_registration_t l2t_decap_local_node;
-
-enum
-{
- SESSION_COUNTER_USER_TO_NETWORK = 0,
- SESSION_COUNTER_NETWORK_TO_USER,
-};
-
-static inline u32
-session_index_to_counter_index (u32 session_index, u32 counter_id)
-{
- return ((session_index << 1) + counter_id);
-}
-
-u8 *format_l2t_trace (u8 * s, va_list * args);
-
-typedef struct
-{
- /* Any per-interface config would go here */
-} ip6_l2tpv3_config_t;
-
-uword unformat_pg_l2tp_header (unformat_input_t * input, va_list * args);
-
-void l2tp_encap_init (vlib_main_t * vm);
-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);
-
-int l2tpv3_set_tunnel_cookies (l2t_main_t * lm,
- u32 sw_if_index,
- u64 new_local_cookie, u64 new_remote_cookie);
-
-int l2tpv3_interface_enable_disable (vnet_main_t * vnm,
- u32 sw_if_index, int enable_disable);
-
-#endif /* __included_l2tp_h__ */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vnet/l2tp/l2tp_api.c b/src/vnet/l2tp/l2tp_api.c
deleted file mode 100644
index 3a31372253f..00000000000
--- a/src/vnet/l2tp/l2tp_api.c
+++ /dev/null
@@ -1,273 +0,0 @@
-/*
- *------------------------------------------------------------------
- * l2tp_api.c - l2tpv3 api
- *
- * Copyright (c) 2016 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/interface.h>
-#include <vnet/api_errno.h>
-#include <vnet/l2tp/l2tp.h>
-#include <vnet/ip/ip_types_api.h>
-
-#include <vnet/vnet_msg_enum.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
-
-/* instantiate all the print functions we know about */
-#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
-#define vl_printfun
-#include <vnet/vnet_all_api_h.h>
-#undef vl_printfun
-
-#include <vlibapi/api_helper_macros.h>
-
-#define foreach_vpe_api_msg \
-_(L2TPV3_CREATE_TUNNEL, l2tpv3_create_tunnel) \
-_(L2TPV3_SET_TUNNEL_COOKIES, l2tpv3_set_tunnel_cookies) \
-_(L2TPV3_INTERFACE_ENABLE_DISABLE, l2tpv3_interface_enable_disable) \
-_(L2TPV3_SET_LOOKUP_KEY, l2tpv3_set_lookup_key) \
-_(SW_IF_L2TPV3_TUNNEL_DUMP, sw_if_l2tpv3_tunnel_dump)
-
-static void
-send_sw_if_l2tpv3_tunnel_details (vpe_api_main_t * am,
- vl_api_registration_t * reg,
- l2t_session_t * s,
- l2t_main_t * lm, u32 context)
-{
- vl_api_sw_if_l2tpv3_tunnel_details_t *mp;
- u8 *if_name = NULL;
- vnet_sw_interface_t *si = NULL;
-
- si = vnet_get_hw_sw_interface (lm->vnet_main, s->hw_if_index);
-
- if_name = format (if_name, "%U",
- format_vnet_sw_interface_name, lm->vnet_main, si);
-
- mp = vl_msg_api_alloc (sizeof (*mp));
- clib_memset (mp, 0, sizeof (*mp));
- mp->_vl_msg_id = ntohs (VL_API_SW_IF_L2TPV3_TUNNEL_DETAILS);
- strncpy ((char *) mp->interface_name,
- (char *) if_name, ARRAY_LEN (mp->interface_name) - 1);
- mp->sw_if_index = ntohl (si->sw_if_index);
- mp->local_session_id = s->local_session_id;
- mp->remote_session_id = s->remote_session_id;
- mp->local_cookie[0] = s->local_cookie[0];
- mp->local_cookie[1] = s->local_cookie[1];
- mp->remote_cookie = s->remote_cookie;
- ip_address_encode ((ip46_address_t *) & s->client_address, IP46_TYPE_IP6,
- &mp->client_address);
- ip_address_encode ((ip46_address_t *) & s->our_address, IP46_TYPE_IP6,
- &mp->our_address);
- mp->l2_sublayer_present = s->l2_sublayer_present;
- mp->context = context;
-
- vl_api_send_msg (reg, (u8 *) mp);
-}
-
-
-static void
-vl_api_sw_if_l2tpv3_tunnel_dump_t_handler (vl_api_sw_if_l2tpv3_tunnel_dump_t *
- mp)
-{
- vpe_api_main_t *am = &vpe_api_main;
- l2t_main_t *lm = &l2t_main;
- vl_api_registration_t *reg;
- l2t_session_t *session;
-
- reg = vl_api_client_index_to_registration (mp->client_index);
- if (!reg)
- return;
-
- /* *INDENT-OFF* */
- pool_foreach (session, lm->sessions,
- ({
- send_sw_if_l2tpv3_tunnel_details (am, reg, session, lm, mp->context);
- }));
- /* *INDENT-ON* */
-}
-
-static void vl_api_l2tpv3_create_tunnel_t_handler
- (vl_api_l2tpv3_create_tunnel_t * mp)
-{
- vl_api_l2tpv3_create_tunnel_reply_t *rmp;
- l2t_main_t *lm = &l2t_main;
- u32 sw_if_index = (u32) ~ 0;
- int rv;
- ip46_address_t client, our;
-
- if (mp->our_address.af == ADDRESS_IP4)
- {
- rv = VNET_API_ERROR_UNIMPLEMENTED;
- goto out;
- }
-
- u32 encap_fib_index;
-
- if (mp->encap_vrf_id != ~0)
- {
- uword *p;
- ip6_main_t *im = &ip6_main;
- if (!
- (p =
- hash_get (im->fib_index_by_table_id, ntohl (mp->encap_vrf_id))))
- {
- rv = VNET_API_ERROR_NO_SUCH_FIB;
- goto out;
- }
- encap_fib_index = p[0];
- }
- else
- {
- encap_fib_index = ~0;
- }
-
- ip_address_decode (&mp->client_address, &client);
- ip_address_decode (&mp->our_address, &our);
-
- rv = create_l2tpv3_ipv6_tunnel (lm,
- &client.ip6,
- &our.ip6,
- ntohl (mp->local_session_id),
- ntohl (mp->remote_session_id),
- clib_net_to_host_u64 (mp->local_cookie),
- clib_net_to_host_u64 (mp->remote_cookie),
- mp->l2_sublayer_present,
- encap_fib_index, &sw_if_index);
-
-out:
- /* *INDENT-OFF* */
- REPLY_MACRO2(VL_API_L2TPV3_CREATE_TUNNEL_REPLY,
- ({
- rmp->sw_if_index = ntohl (sw_if_index);
- }));
- /* *INDENT-ON* */
-}
-
-static void vl_api_l2tpv3_set_tunnel_cookies_t_handler
- (vl_api_l2tpv3_set_tunnel_cookies_t * mp)
-{
- vl_api_l2tpv3_set_tunnel_cookies_reply_t *rmp;
- l2t_main_t *lm = &l2t_main;
- int rv;
-
- VALIDATE_SW_IF_INDEX (mp);
-
- rv = l2tpv3_set_tunnel_cookies (lm, ntohl (mp->sw_if_index),
- clib_net_to_host_u64 (mp->new_local_cookie),
- clib_net_to_host_u64
- (mp->new_remote_cookie));
-
- BAD_SW_IF_INDEX_LABEL;
-
- REPLY_MACRO (VL_API_L2TPV3_SET_TUNNEL_COOKIES_REPLY);
-}
-
-static void vl_api_l2tpv3_interface_enable_disable_t_handler
- (vl_api_l2tpv3_interface_enable_disable_t * mp)
-{
- int rv;
- vnet_main_t *vnm = vnet_get_main ();
- vl_api_l2tpv3_interface_enable_disable_reply_t *rmp;
-
- VALIDATE_SW_IF_INDEX (mp);
-
- rv = l2tpv3_interface_enable_disable
- (vnm, ntohl (mp->sw_if_index), mp->enable_disable);
-
- BAD_SW_IF_INDEX_LABEL;
-
- REPLY_MACRO (VL_API_L2TPV3_INTERFACE_ENABLE_DISABLE_REPLY);
-}
-
-static void vl_api_l2tpv3_set_lookup_key_t_handler
- (vl_api_l2tpv3_set_lookup_key_t * mp)
-{
- int rv = 0;
- l2t_main_t *lm = &l2t_main;
- vl_api_l2tpv3_set_lookup_key_reply_t *rmp;
-
- if (mp->key > L2T_LOOKUP_KEY_API_SESSION_ID)
- {
- rv = VNET_API_ERROR_INVALID_VALUE;
- goto out;
- }
-
- lm->lookup_type = (ip6_to_l2_lookup_t) mp->key;
-
-out:
- REPLY_MACRO (VL_API_L2TPV3_SET_LOOKUP_KEY_REPLY);
-}
-
-/*
- * l2tp_api_hookup
- * Add vpe's API message handlers to the table.
- * vlib has already mapped shared memory and
- * added the client registration handlers.
- * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
- */
-#define vl_msg_name_crc_list
-#include <vnet/vnet_all_api_h.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_l2tp;
-#undef _
-}
-
-static clib_error_t *
-l2tp_api_hookup (vlib_main_t * vm)
-{
- api_main_t *am = vlibapi_get_main ();
-
-#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), 1);
- foreach_vpe_api_msg;
-#undef _
-
- /*
- * Set up the (msg_name, crc, message-id) table
- */
- setup_message_id_table (am);
-
- return 0;
-}
-
-VLIB_API_INIT_FUNCTION (l2tp_api_hookup);
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vnet/l2tp/packet.h b/src/vnet/l2tp/packet.h
deleted file mode 100644
index 66dfea2194c..00000000000
--- a/src/vnet/l2tp/packet.h
+++ /dev/null
@@ -1,44 +0,0 @@
-/*
- * packet.h : L2TPv3 packet header format
- *
- * 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.
- */
-
-#ifndef __included_l2tp_packet_h__
-#define __included_l2tp_packet_h__
-
-/*
- * See RFC4719 for packet format.
- * Note: the l2_specific_sublayer is present in current Linux l2tpv3
- * tunnels. It is not present in IOS XR l2tpv3 tunnels.
- * The Linux implementation is almost certainly wrong.
- */
-/* *INDENT-OFF* */
-typedef CLIB_PACKED (struct
-{
- u32 session_id;
- u64 cookie; u32
- l2_specific_sublayer; /* set to 0 (if present) */
-}) l2tpv3_header_t;
-/* *INDENT-ON* */
-
-#endif /* __included_l2tp_packet_h__ */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vnet/l2tp/pg.c b/src/vnet/l2tp/pg.c
deleted file mode 100644
index 1e523d3bbb0..00000000000
--- a/src/vnet/l2tp/pg.c
+++ /dev/null
@@ -1,106 +0,0 @@
-/*
- * pg.c: packet generator for L2TPv3 header
- *
- * 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 <vlib/vlib.h>
-#include <vnet/pg/pg.h>
-#include <vnet/l2tp/l2tp.h>
-
-typedef struct
-{
- pg_edit_t session_id;
- pg_edit_t cookie;
-} pg_l2tp_header_t;
-
-typedef struct
-{
- pg_edit_t l2_sublayer;
-} pg_l2tp_header_l2_sublayer_t;
-
-static inline void
-pg_l2tp_header_init (pg_l2tp_header_t * e)
-{
- pg_edit_init (&e->session_id, l2tpv3_header_t, session_id);
- pg_edit_init (&e->cookie, l2tpv3_header_t, cookie);
-}
-
-uword
-unformat_pg_l2tp_header (unformat_input_t * input, va_list * args)
-{
- pg_stream_t *s = va_arg (*args, pg_stream_t *);
- pg_l2tp_header_t *h;
- u32 group_index, error;
- vlib_main_t *vm = vlib_get_main ();
-
- h = pg_create_edit_group (s, sizeof (h[0]),
- sizeof (l2tpv3_header_t) - sizeof (u32),
- &group_index);
- pg_l2tp_header_init (h);
-
- error = 1;
-
- /* session id and cookie are required */
- if (!unformat (input, "L2TP: session_id %U cookie %U",
- unformat_pg_edit, unformat_pg_number, &h->session_id,
- unformat_pg_edit, unformat_pg_number, &h->cookie))
- {
- goto done;
- }
-
- /* "l2_sublayer <value>" is optional */
- if (unformat (input, "l2_sublayer"))
- {
- pg_l2tp_header_l2_sublayer_t *h2;
-
- h2 = pg_add_edits (s, sizeof (h2[0]), sizeof (u32), group_index);
- pg_edit_init (&h2->l2_sublayer, l2tpv3_header_t, l2_specific_sublayer);
- if (!unformat_user (input, unformat_pg_edit,
- unformat_pg_number, &h2->l2_sublayer))
- {
- goto done;
- }
- }
-
- /* Parse an ethernet header if it is present */
- {
- pg_node_t *pg_node = 0;
- vlib_node_t *eth_lookup_node;
-
- eth_lookup_node = vlib_get_node_by_name (vm, (u8 *) "ethernet-input");
- ASSERT (eth_lookup_node);
-
- pg_node = pg_get_node (eth_lookup_node->index);
-
- if (pg_node && pg_node->unformat_edit
- && unformat_user (input, pg_node->unformat_edit, s))
- ;
- }
-
- error = 0;
-
-done:
- if (error)
- pg_free_edit_group (s);
- return error == 0;
-}
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */