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authorTetsuya Murakami <tetsuya.mrk@gmail.com>2020-03-23 16:10:28 -0700
committerNeale Ranns <nranns@cisco.com>2020-04-07 08:21:43 +0000
commitec9cb966875e1782a1d3c39be7488a56e7dc785a (patch)
tree1183ae081f0734c4dd5f302f2ec57b92488daf8f /src/plugins/srv6-un
parent032a5e3da0f4350390d97d6011160fe0d34a8d6e (diff)
sr: Support uSID function.
1. Add uSID function in VNET SRv6 2. Add test case for uSID Type: feature Signed-off-by: Tetsuya Murakami <tetsuya.mrk@gmail.com> Change-Id: I354fc687192ed713ceb81fccc9f7b69b6777f6f6 Signed-off-by: Tetsuya Murakami <tetsuya.mrk@gmail.com>
Diffstat (limited to 'src/plugins/srv6-un')
-rw-r--r--src/plugins/srv6-un/CMakeLists.txt21
-rw-r--r--src/plugins/srv6-un/node.c289
-rw-r--r--src/plugins/srv6-un/un.c185
-rw-r--r--src/plugins/srv6-un/un.h65
4 files changed, 0 insertions, 560 deletions
diff --git a/src/plugins/srv6-un/CMakeLists.txt b/src/plugins/srv6-un/CMakeLists.txt
deleted file mode 100644
index 9ecf0b3c8d0..00000000000
--- a/src/plugins/srv6-un/CMakeLists.txt
+++ /dev/null
@@ -1,21 +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.
-
-add_vpp_plugin(SRv6uN
- SOURCES
- un.c
- node.c
-
- INSTALL_HEADERS
- un.h
-)
diff --git a/src/plugins/srv6-un/node.c b/src/plugins/srv6-un/node.c
deleted file mode 100644
index 9368f2083ef..00000000000
--- a/src/plugins/srv6-un/node.c
+++ /dev/null
@@ -1,289 +0,0 @@
-/*
- * Copyright (c) 2015 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-#include <vlib/vlib.h>
-#include <vnet/vnet.h>
-#include <vppinfra/error.h>
-#include <srv6-un/un.h>
-
-
-/******************************* Packet tracing *******************************/
-typedef struct
-{
- u32 localsid_index;
-} srv6_un_localsid_trace_t;
-
-
-static u8 *
-format_srv6_un_localsid_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 *);
- srv6_un_localsid_trace_t *t = va_arg (*args, srv6_un_localsid_trace_t *);
-
- return format (s, "SRv6-uN-localsid: localsid_index %d", t->localsid_index);
-}
-
-/********************************* Next nodes *********************************/
-typedef enum
-{
- SRV6_UN_LOCALSID_NEXT_ERROR,
- SRV6_UN_LOCALSID_NEXT_IP6LOOKUP,
- SRV6_UN_LOCALSID_N_NEXT,
-} srv6_un_localsid_next_t;
-
-/******************************* Local SID node *******************************/
-
-/**
- * @brief Graph node for applying SRv6 uN.
- */
-static uword
-srv6_un_localsid_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node, vlib_frame_t * frame)
-{
- ip6_sr_main_t *sm = &sr_main;
- u32 n_left_from, next_index, *from, *to_next;
-
- from = vlib_frame_vector_args (frame);
- n_left_from = frame->n_vectors;
- next_index = node->cached_next_index;
-
- u32 thread_index = vm->thread_index;
-
- while (n_left_from > 0)
- {
- u32 n_left_to_next;
- vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
-
- /* Quad - Loop */
- while (n_left_from >= 8 && n_left_to_next >= 4)
- {
- u32 bi0, bi1, bi2, bi3;
- vlib_buffer_t *b0, *b1, *b2, *b3;
- ip6_header_t *ip0, *ip1, *ip2, *ip3;
- u32 next0, next1, next2, next3;
- next0 = next1 = next2 = next3 = SRV6_UN_LOCALSID_NEXT_IP6LOOKUP;
- ip6_sr_localsid_t *ls0, *ls1, *ls2, *ls3;
-
- /* Prefetch next iteration. */
- {
- vlib_buffer_t *p4, *p5, *p6, *p7;
-
- p4 = vlib_get_buffer (vm, from[4]);
- p5 = vlib_get_buffer (vm, from[5]);
- p6 = vlib_get_buffer (vm, from[6]);
- p7 = vlib_get_buffer (vm, from[7]);
-
- /* Prefetch the buffer header and packet for the N+4 loop iteration */
- vlib_prefetch_buffer_header (p4, LOAD);
- vlib_prefetch_buffer_header (p5, LOAD);
- vlib_prefetch_buffer_header (p6, LOAD);
- vlib_prefetch_buffer_header (p7, LOAD);
-
- CLIB_PREFETCH (p4->data, CLIB_CACHE_LINE_BYTES, STORE);
- CLIB_PREFETCH (p5->data, CLIB_CACHE_LINE_BYTES, STORE);
- CLIB_PREFETCH (p6->data, CLIB_CACHE_LINE_BYTES, STORE);
- CLIB_PREFETCH (p7->data, CLIB_CACHE_LINE_BYTES, STORE);
- }
-
- to_next[0] = bi0 = from[0];
- to_next[1] = bi1 = from[1];
- to_next[2] = bi2 = from[2];
- to_next[3] = bi3 = from[3];
- from += 4;
- to_next += 4;
- n_left_from -= 4;
- n_left_to_next -= 4;
-
- b0 = vlib_get_buffer (vm, bi0);
- b1 = vlib_get_buffer (vm, bi1);
- b2 = vlib_get_buffer (vm, bi2);
- b3 = vlib_get_buffer (vm, bi3);
-
- ls0 =
- pool_elt_at_index (sm->localsids,
- vnet_buffer (b0)->ip.adj_index[VLIB_TX]);
- ls1 =
- pool_elt_at_index (sm->localsids,
- vnet_buffer (b1)->ip.adj_index[VLIB_TX]);
- ls2 =
- pool_elt_at_index (sm->localsids,
- vnet_buffer (b2)->ip.adj_index[VLIB_TX]);
- ls3 =
- pool_elt_at_index (sm->localsids,
- vnet_buffer (b3)->ip.adj_index[VLIB_TX]);
-
- ip0 = vlib_buffer_get_current (b0);
- ip1 = vlib_buffer_get_current (b1);
- ip2 = vlib_buffer_get_current (b2);
- ip3 = vlib_buffer_get_current (b3);
-
- /* Set Destination Address to Last Segment (index 0) */
- ip0->dst_address.as_u16[2] = ip0->dst_address.as_u16[3];
- ip0->dst_address.as_u16[3] = ip0->dst_address.as_u16[4];
- ip0->dst_address.as_u16[4] = ip0->dst_address.as_u16[5];
- ip0->dst_address.as_u16[5] = ip0->dst_address.as_u16[6];
- ip0->dst_address.as_u16[6] = ip0->dst_address.as_u16[7];
- ip0->dst_address.as_u16[7] = 0x0000;
-
- ip1->dst_address.as_u16[2] = ip1->dst_address.as_u16[3];
- ip1->dst_address.as_u16[3] = ip1->dst_address.as_u16[4];
- ip1->dst_address.as_u16[4] = ip1->dst_address.as_u16[5];
- ip1->dst_address.as_u16[5] = ip1->dst_address.as_u16[6];
- ip1->dst_address.as_u16[6] = ip1->dst_address.as_u16[7];
- ip1->dst_address.as_u16[7] = 0x0000;
-
- ip2->dst_address.as_u16[2] = ip2->dst_address.as_u16[3];
- ip2->dst_address.as_u16[3] = ip2->dst_address.as_u16[4];
- ip2->dst_address.as_u16[4] = ip2->dst_address.as_u16[5];
- ip2->dst_address.as_u16[5] = ip2->dst_address.as_u16[6];
- ip2->dst_address.as_u16[6] = ip2->dst_address.as_u16[7];
- ip2->dst_address.as_u16[7] = 0x0000;
-
- ip3->dst_address.as_u16[2] = ip3->dst_address.as_u16[3];
- ip3->dst_address.as_u16[3] = ip3->dst_address.as_u16[4];
- ip3->dst_address.as_u16[4] = ip3->dst_address.as_u16[5];
- ip3->dst_address.as_u16[5] = ip3->dst_address.as_u16[6];
- ip3->dst_address.as_u16[6] = ip3->dst_address.as_u16[7];
- ip3->dst_address.as_u16[7] = 0x0000;
-
- if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
- {
- srv6_un_localsid_trace_t *tr =
- vlib_add_trace (vm, node, b0, sizeof (*tr));
- tr->localsid_index = ls0 - sm->localsids;
- }
-
- if (PREDICT_FALSE (b1->flags & VLIB_BUFFER_IS_TRACED))
- {
- srv6_un_localsid_trace_t *tr =
- vlib_add_trace (vm, node, b1, sizeof (*tr));
- tr->localsid_index = ls1 - sm->localsids;
- }
-
- if (PREDICT_FALSE (b2->flags & VLIB_BUFFER_IS_TRACED))
- {
- srv6_un_localsid_trace_t *tr =
- vlib_add_trace (vm, node, b2, sizeof (*tr));
- tr->localsid_index = ls2 - sm->localsids;
- }
-
- if (PREDICT_FALSE (b3->flags & VLIB_BUFFER_IS_TRACED))
- {
- srv6_un_localsid_trace_t *tr =
- vlib_add_trace (vm, node, b3, sizeof (*tr));
- tr->localsid_index = ls3 - sm->localsids;
- }
-
- vlib_increment_combined_counter
- (&(sm->sr_ls_valid_counters),
- thread_index, ls0 - sm->localsids,
- 1, vlib_buffer_length_in_chain (vm, b0));
-
- vlib_increment_combined_counter
- (&(sm->sr_ls_valid_counters),
- thread_index, ls1 - sm->localsids,
- 1, vlib_buffer_length_in_chain (vm, b1));
-
- vlib_increment_combined_counter
- (&(sm->sr_ls_valid_counters),
- thread_index, ls2 - sm->localsids,
- 1, vlib_buffer_length_in_chain (vm, b2));
-
- vlib_increment_combined_counter
- (&(sm->sr_ls_valid_counters),
- thread_index, ls3 - sm->localsids,
- 1, vlib_buffer_length_in_chain (vm, b3));
-
- vlib_validate_buffer_enqueue_x4 (vm, node, next_index, to_next,
- n_left_to_next, bi0, bi1, bi2, bi3,
- next0, next1, next2, next3);
- }
-
- while (n_left_from > 0 && n_left_to_next > 0)
- {
- u32 bi0;
- vlib_buffer_t *b0;
- ip6_header_t *ip0 = 0;
- u32 next0 = SRV6_UN_LOCALSID_NEXT_IP6LOOKUP;
- ip6_sr_localsid_t *ls0;
- bi0 = from[0];
- to_next[0] = bi0;
- from += 1;
- to_next += 1;
- n_left_from -= 1;
- n_left_to_next -= 1;
-
- b0 = vlib_get_buffer (vm, bi0);
- ip0 = vlib_buffer_get_current (b0);
-
- /* Lookup the SR End behavior based on IP DA (adj) */
- ls0 =
- pool_elt_at_index (sm->localsids,
- vnet_buffer (b0)->ip.adj_index[VLIB_TX]);
-
- /* Set Destination Address to Last Segment (index 0) */
- ip0->dst_address.as_u16[2] = ip0->dst_address.as_u16[3];
- ip0->dst_address.as_u16[3] = ip0->dst_address.as_u16[4];
- ip0->dst_address.as_u16[4] = ip0->dst_address.as_u16[5];
- ip0->dst_address.as_u16[5] = ip0->dst_address.as_u16[6];
- ip0->dst_address.as_u16[6] = ip0->dst_address.as_u16[7];
- ip0->dst_address.as_u16[7] = 0x0000;
-
- if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
- {
- srv6_un_localsid_trace_t *tr =
- vlib_add_trace (vm, node, b0, sizeof (*tr));
- tr->localsid_index = ls0 - sm->localsids;
- }
-
- /* This increments the SRv6 per LocalSID counters. */
- vlib_increment_combined_counter
- (&(sm->sr_ls_valid_counters),
- thread_index, ls0 - sm->localsids,
- 1, vlib_buffer_length_in_chain (vm, b0));
-
- vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
- n_left_to_next, bi0, next0);
-
- }
-
- vlib_put_next_frame (vm, node, next_index, n_left_to_next);
- }
-
- return frame->n_vectors;
-}
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (srv6_un_localsid_node) = {
- .function = srv6_un_localsid_fn,
- .name = "srv6-un-localsid",
- .vector_size = sizeof (u32),
- .format_trace = format_srv6_un_localsid_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
- .n_next_nodes = SRV6_UN_LOCALSID_N_NEXT,
- .next_nodes = {
- [SRV6_UN_LOCALSID_NEXT_IP6LOOKUP] = "ip6-lookup",
- [SRV6_UN_LOCALSID_NEXT_ERROR] = "error-drop",
- },
-};
-/* *INDENT-ON* */
-
-/*
-* fd.io coding-style-patch-verification: ON
-*
-* Local Variables:
-* eval: (c-set-style "gnu")
-* End:
-*/
diff --git a/src/plugins/srv6-un/un.c b/src/plugins/srv6-un/un.c
deleted file mode 100644
index 7fd02e2c934..00000000000
--- a/src/plugins/srv6-un/un.c
+++ /dev/null
@@ -1,185 +0,0 @@
-/*
- * Copyright (c) 2015 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-/*
- *------------------------------------------------------------------
- * un.c - SRv6 Masquerading Proxy (AM) function
- *------------------------------------------------------------------
- */
-
-#include <vnet/vnet.h>
-#include <vnet/adj/adj.h>
-#include <vnet/plugin/plugin.h>
-#include <vpp/app/version.h>
-#include <srv6-un/un.h>
-
-unsigned char function_name[] = "SRv6-uN";
-unsigned char keyword_str[] = "uN(32b+16b)";
-unsigned char def_str[] = "SRv6 uSID uN";
-unsigned char params_str[] = "";
-u8 prefix_length = 48;
-
-srv6_un_main_t srv6_un_main;
-
-/*****************************************/
-/* SRv6 LocalSID instantiation and removal functions */
-static int
-srv6_un_localsid_creation_fn (ip6_sr_localsid_t * localsid)
-{
- srv6_un_localsid_t *ls_mem = localsid->plugin_mem;
- //Nothing to do here.
- ls_mem->shift = 16;
- return 0;
-}
-
-static int
-srv6_un_localsid_removal_fn (ip6_sr_localsid_t * localsid)
-{
- //Nothing to do here.
-
- /* Clean up local SID memory */
- clib_mem_free (localsid->plugin_mem);
-
- return 0;
-}
-
-/**********************************/
-/* SRv6 LocalSID format functions */
-/*
- * Prints nicely the parameters of a localsid
- * Example: print "Table 5"
- */
-u8 *
-format_srv6_un_localsid (u8 * s, va_list * args)
-{
- srv6_un_localsid_t *ls_mem = va_arg (*args, void *);
-
- return (format (s, "Shift:\t\t%u", ls_mem->shift));
-}
-
-/*
- * Process the parameters of a localsid
- * Example: process from:
- * sr localsid address cafe::1 behavior new_srv6_localsid 5
- * everything from behavior on... so in this case 'new_srv6_localsid 5'
- * Notice that it MUST match the keyword_str and params_str defined above.
- */
-uword
-unformat_srv6_un_localsid (unformat_input_t * input, va_list * args)
-{
- void **plugin_mem_p = va_arg (*args, void **);
- srv6_un_localsid_t *ls_mem;
-
- if (unformat (input, "uN(32b+16b)"))
- {
- /* Allocate a portion of memory */
- ls_mem = clib_mem_alloc_aligned_at_offset (sizeof *ls_mem, 0, 0, 1);
-
- /* Set to zero the memory */
- clib_memset (ls_mem, 0, sizeof *ls_mem);
-
- /* Dont forget to add it to the localsid */
- *plugin_mem_p = ls_mem;
- return 1;
- }
- return 0;
-}
-
-/*************************/
-/* SRv6 LocalSID FIB DPO */
-static u8 *
-format_srv6_un_dpo (u8 * s, va_list * args)
-{
- index_t index = va_arg (*args, index_t);
- CLIB_UNUSED (u32 indent) = va_arg (*args, u32);
-
- return (format (s, "SR: shift-and-forward 16b:[%u]", index));
-}
-
-void
-srv6_un_dpo_lock (dpo_id_t * dpo)
-{
-}
-
-void
-srv6_un_dpo_unlock (dpo_id_t * dpo)
-{
-}
-
-const static dpo_vft_t srv6_un_vft = {
- .dv_lock = srv6_un_dpo_lock,
- .dv_unlock = srv6_un_dpo_unlock,
- .dv_format = format_srv6_un_dpo,
-};
-
-const static char *const srv6_un_ip6_nodes[] = {
- "srv6-un-localsid",
- NULL,
-};
-
-const static char *const *const srv6_un_nodes[DPO_PROTO_NUM] = {
- [DPO_PROTO_IP6] = srv6_un_ip6_nodes,
-};
-
-/**********************/
-static clib_error_t *
-srv6_un_init (vlib_main_t * vm)
-{
- srv6_un_main_t *sm = &srv6_un_main;
- int rv = 0;
-
- sm->vlib_main = vm;
- sm->vnet_main = vnet_get_main ();
-
- /* Create DPO */
- sm->srv6_un16_dpo_type =
- dpo_register_new_type (&srv6_un_vft, srv6_un_nodes);
-
- /* Register SRv6 LocalSID */
- rv = sr_localsid_register_function (vm,
- function_name,
- keyword_str,
- def_str,
- params_str,
- prefix_length,
- &sm->srv6_un16_dpo_type,
- format_srv6_un_localsid,
- unformat_srv6_un_localsid,
- srv6_un_localsid_creation_fn,
- srv6_un_localsid_removal_fn);
- if (rv < 0)
- clib_error_return (0, "SRv6 LocalSID function could not be registered.");
- else
- sm->srv6_localsid_behavior_id = rv;
-
- return 0;
-}
-
-
-/* *INDENT-OFF* */
-VLIB_INIT_FUNCTION (srv6_un_init);
-
-VLIB_PLUGIN_REGISTER () = {
- .version = VPP_BUILD_VER,
- .description = "Segment Routing Shift And Forward uN 16b",
-};
-/* *INDENT-ON* */
-
-/*
-* fd.io coding-style-patch-verification: ON
-*
-* Local Variables:
-* eval: (c-set-style "gnu")
-* End:
-*/
diff --git a/src/plugins/srv6-un/un.h b/src/plugins/srv6-un/un.h
deleted file mode 100644
index 750e2350d74..00000000000
--- a/src/plugins/srv6-un/un.h
+++ /dev/null
@@ -1,65 +0,0 @@
-/*
- * Copyright (c) 2015 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-#ifndef __included_srv6_un_h__
-#define __included_srv6_un_h__
-
-#include <vnet/vnet.h>
-#include <vnet/ip/ip.h>
-#include <vnet/srv6/sr.h>
-#include <vnet/srv6/sr_packet.h>
-
-#include <vppinfra/error.h>
-#include <vppinfra/elog.h>
-
-typedef struct
-{
- u16 msg_id_base; /**< API message ID base */
-
- vlib_main_t *vlib_main; /**< [convenience] vlib main */
- vnet_main_t *vnet_main; /**< [convenience] vnet main */
-
- dpo_type_t srv6_un16_dpo_type; /**< DPO type */
-
- u32 srv6_localsid_behavior_id; /**< SRv6 LocalSID behavior number */
-} srv6_un_main_t;
-
-/*
- * This is the memory that will be stored per each localsid
- * the user instantiates
- */
-typedef struct
-{
- u16 shift;
-} srv6_un_localsid_t;
-
-extern srv6_un_main_t srv6_un_main;
-
-format_function_t format_srv6_un_localsid;
-unformat_function_t unformat_srv6_un_localsid;
-
-void srv6_un_dpo_lock (dpo_id_t * dpo);
-void srv6_un_dpo_unlock (dpo_id_t * dpo);
-
-extern vlib_node_registration_t srv6_un_localsid_node;
-
-#endif /* __included_srv6_un_h__ */
-
-/*
-* fd.io coding-style-patch-verification: ON
-*
-* Local Variables:
-* eval: (c-set-style "gnu")
-* End:
-*/