summaryrefslogtreecommitdiffstats
path: root/src/vnet/gre
diff options
context:
space:
mode:
authorChuhao Tang <nicotang@cisco.com>2023-04-27 15:43:42 +0200
committerBeno�t Ganne <bganne@cisco.com>2023-05-12 06:59:09 +0000
commitcefb178aa487a217d4ac75d7d4fa62db4b7d70fd (patch)
treeaeacf10d2387eeb3564ac42cacae17679d060e6c /src/vnet/gre
parent683bdb6743e0568bbf02c1f4953d3f73e6f2b544 (diff)
gre: move to a plugin
Move GRE folder under vnet to the plugin folder, and modify some of path of the #inlude<header> to the new path. Add a plugin.c file to register a plugin. JIRA: VPP-2044 Type: improvement Change-Id: I7f64cecd97538a7492e56a41558dab58281a9fa5 Signed-off-by: Chuhao Tang <nicotang@cisco.com>
Diffstat (limited to 'src/vnet/gre')
-rw-r--r--src/vnet/gre/FEATURE.yaml13
-rw-r--r--src/vnet/gre/error.def23
-rw-r--r--src/vnet/gre/gre.api110
-rw-r--r--src/vnet/gre/gre.c867
-rw-r--r--src/vnet/gre/gre.h443
-rw-r--r--src/vnet/gre/gre_api.c220
-rw-r--r--src/vnet/gre/interface.c845
-rw-r--r--src/vnet/gre/node.c598
-rw-r--r--src/vnet/gre/pg.c86
9 files changed, 0 insertions, 3205 deletions
diff --git a/src/vnet/gre/FEATURE.yaml b/src/vnet/gre/FEATURE.yaml
deleted file mode 100644
index 4b35b870dc3..00000000000
--- a/src/vnet/gre/FEATURE.yaml
+++ /dev/null
@@ -1,13 +0,0 @@
----
-name: Generic Routing Encapsulation
-maintainer: Neale Ranns <nranns@cisco.com>
-features:
- - L3 tunnels, all combinations of IPv4 and IPv6
- - Encap/Decap flags to control the copying of DSCP, ECN, DF from overlay to
- underlay and vice-versa.
- - L2 tunnels
-missing:
- - GRE keys
-description: "An implementation of Generic Routing Encapsulation (GRE)"
-state: production
-properties: [API, CLI, MULTITHREAD]
diff --git a/src/vnet/gre/error.def b/src/vnet/gre/error.def
deleted file mode 100644
index 161ecc1d874..00000000000
--- a/src/vnet/gre/error.def
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * gre_error.def: gre errors
- *
- * Copyright (c) 2012 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.
- */
-
-gre_error (NONE, "no error")
-gre_error (UNKNOWN_PROTOCOL, "unknown protocol")
-gre_error (UNSUPPORTED_VERSION, "unsupported version")
-gre_error (PKTS_DECAP, "GRE input packets decapsulated")
-gre_error (PKTS_ENCAP, "GRE output packets encapsulated")
-gre_error (NO_SUCH_TUNNEL, "GRE input packets dropped due to missing tunnel")
diff --git a/src/vnet/gre/gre.api b/src/vnet/gre/gre.api
deleted file mode 100644
index 9c69ba4007d..00000000000
--- a/src/vnet/gre/gre.api
+++ /dev/null
@@ -1,110 +0,0 @@
-/* Hey Emacs use -*- mode: C -*- */
-/*
- * Copyright (c) 2015-2020 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 = "2.1.1";
-
-import "vnet/interface_types.api";
-import "vnet/tunnel/tunnel_types.api";
-import "vnet/ip/ip_types.api";
-
-/** \brief A GRE tunnel type
-*/
-enum gre_tunnel_type : u8
-{
- GRE_API_TUNNEL_TYPE_L3 = 0,
- /* L2 Transparent Ethernet Bridge */
- GRE_API_TUNNEL_TYPE_TEB,
- /* Encapsulated Remote Switched Port ANalyzer */
- GRE_API_TUNNEL_TYPE_ERSPAN,
-};
-
-/** \brief A composite type uniquely defining a GRE tunnel.
- @param type - tunnel type (see enum definition), 0: L3, 1: TEB, 2: ERSPAN
- @param mode - P2P or P2MP
- @param flags - to control encap/decap behaviour
- @param session_id - session for ERSPAN tunnel, range 0-1023
- @param instance - optional unique custom device instance, else ~0.
- @param outer_table_id - Encap FIB table ID
- @param sw_if_index - ignored on create/delete, present in details.
- @param src - Source IP address
- @param dst - Destination IP address, can be multicast
-*/
-typedef gre_tunnel
-{
- vl_api_gre_tunnel_type_t type;
- vl_api_tunnel_mode_t mode;
- vl_api_tunnel_encap_decap_flags_t flags;
- u16 session_id;
- u32 instance;
- u32 outer_table_id;
- vl_api_interface_index_t sw_if_index;
- vl_api_address_t src;
- vl_api_address_t dst;
-};
-
-/** \brief Add or delete a single GRE tunnel.
- @param client_index - opaque cookie to identify the sender.
- @param context - sender context, to match reply w/ request.
- @param is_add - add if true, delete if false.
- @param tunnel - tunnel definition to add or delete.
-*/
-define gre_tunnel_add_del
-{
- u32 client_index;
- u32 context;
- bool is_add;
- vl_api_gre_tunnel_t tunnel;
-};
-
-/** \brief Add or delete a single GRE tunnel.
- @param context - sender context, to match reply w/ request.
- @param retval - return code for the request.
- @param sw_if_index - the interface corresponding to the affected tunnel.
-*/
-define gre_tunnel_add_del_reply
-{
- u32 context;
- i32 retval;
- vl_api_interface_index_t sw_if_index;
-};
-
-/** \brief Dump details of all or just a single GRE tunnel.
- @param client_index - opaque cookie to identify the sender.
- @param context - sender context, to match reply w/ request.
- @param sw_if_index - filter for tunnel of this interface index, ~0 for all.
-*/
-define gre_tunnel_dump
-{
- u32 client_index;
- u32 context;
- vl_api_interface_index_t sw_if_index;
-};
-
-/** \brief Details response for one of the requested GRE tunnels.
- @param context - sender context, to match reply w/ request.
- @param tunnel - definition of the dumped tunnel.
-*/
-define gre_tunnel_details
-{
- u32 context;
- vl_api_gre_tunnel_t tunnel;
-};
-
-/*
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vnet/gre/gre.c b/src/vnet/gre/gre.c
deleted file mode 100644
index dc735e6a77b..00000000000
--- a/src/vnet/gre/gre.c
+++ /dev/null
@@ -1,867 +0,0 @@
-/*
- * gre.c: gre
- *
- * Copyright (c) 2012 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 <vnet/gre/gre.h>
-#include <vnet/adj/adj_midchain.h>
-#include <vnet/tunnel/tunnel_dp.h>
-
-extern gre_main_t gre_main;
-
-#ifndef CLIB_MARCH_VARIANT
-gre_main_t gre_main;
-
-typedef struct
-{
- union
- {
- ip4_and_gre_header_t ip4_and_gre;
- u64 as_u64[3];
- };
-} ip4_and_gre_union_t;
-
-typedef struct
-{
- union
- {
- ip6_and_gre_header_t ip6_and_gre;
- u64 as_u64[3];
- };
-} ip6_and_gre_union_t;
-#endif /* CLIB_MARCH_VARIANT */
-
-
-/* Packet trace structure */
-typedef struct
-{
- /* Tunnel-id / index in tunnel vector */
- u32 tunnel_id;
-
- /* pkt length */
- u32 length;
-
- /* tunnel ip addresses */
- ip46_address_t src;
- ip46_address_t dst;
-} gre_tx_trace_t;
-
-extern u8 *format_gre_tx_trace (u8 * s, va_list * args);
-
-#ifndef CLIB_MARCH_VARIANT
-u8 *
-format_gre_tx_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 *);
- gre_tx_trace_t *t = va_arg (*args, gre_tx_trace_t *);
-
- s = format (s, "GRE: tunnel %d len %d src %U dst %U",
- t->tunnel_id, t->length,
- format_ip46_address, &t->src, IP46_TYPE_ANY,
- format_ip46_address, &t->dst, IP46_TYPE_ANY);
- return s;
-}
-
-u8 *
-format_gre_protocol (u8 * s, va_list * args)
-{
- gre_protocol_t p = va_arg (*args, u32);
- gre_main_t *gm = &gre_main;
- gre_protocol_info_t *pi = gre_get_protocol_info (gm, p);
-
- if (pi)
- s = format (s, "%s", pi->name);
- else
- s = format (s, "0x%04x", p);
-
- return s;
-}
-
-u8 *
-format_gre_header_with_length (u8 * s, va_list * args)
-{
- gre_main_t *gm = &gre_main;
- gre_header_t *h = va_arg (*args, gre_header_t *);
- u32 max_header_bytes = va_arg (*args, u32);
- gre_protocol_t p = clib_net_to_host_u16 (h->protocol);
- u32 indent, header_bytes;
-
- header_bytes = sizeof (h[0]);
- if (max_header_bytes != 0 && header_bytes > max_header_bytes)
- return format (s, "gre header truncated");
-
- indent = format_get_indent (s);
-
- s = format (s, "GRE %U", format_gre_protocol, p);
-
- if (max_header_bytes != 0 && header_bytes < max_header_bytes)
- {
- gre_protocol_info_t *pi = gre_get_protocol_info (gm, p);
- vlib_node_t *node = vlib_get_node (gm->vlib_main, pi->node_index);
- if (node->format_buffer)
- s = format (s, "\n%U%U",
- format_white_space, indent,
- node->format_buffer, (void *) (h + 1),
- max_header_bytes - header_bytes);
- }
-
- return s;
-}
-
-u8 *
-format_gre_header (u8 * s, va_list * args)
-{
- gre_header_t *h = va_arg (*args, gre_header_t *);
- return format (s, "%U", format_gre_header_with_length, h, 0);
-}
-
-/* Returns gre protocol as an int in host byte order. */
-uword
-unformat_gre_protocol_host_byte_order (unformat_input_t * input,
- va_list * args)
-{
- u16 *result = va_arg (*args, u16 *);
- gre_main_t *gm = &gre_main;
- int i;
-
- /* Named type. */
- if (unformat_user (input, unformat_vlib_number_by_name,
- gm->protocol_info_by_name, &i))
- {
- gre_protocol_info_t *pi = vec_elt_at_index (gm->protocol_infos, i);
- *result = pi->protocol;
- return 1;
- }
-
- return 0;
-}
-
-uword
-unformat_gre_protocol_net_byte_order (unformat_input_t * input,
- va_list * args)
-{
- u16 *result = va_arg (*args, u16 *);
- if (!unformat_user (input, unformat_gre_protocol_host_byte_order, result))
- return 0;
- *result = clib_host_to_net_u16 ((u16) * result);
- return 1;
-}
-
-uword
-unformat_gre_header (unformat_input_t * input, va_list * args)
-{
- u8 **result = va_arg (*args, u8 **);
- gre_header_t _h, *h = &_h;
- u16 p;
-
- if (!unformat (input, "%U", unformat_gre_protocol_host_byte_order, &p))
- return 0;
-
- h->protocol = clib_host_to_net_u16 (p);
-
- /* Add header to result. */
- {
- void *p;
- u32 n_bytes = sizeof (h[0]);
-
- vec_add2 (*result, p, n_bytes);
- clib_memcpy (p, h, n_bytes);
- }
-
- return 1;
-}
-
-static int
-gre_proto_from_vnet_link (vnet_link_t link)
-{
- switch (link)
- {
- case VNET_LINK_IP4:
- return (GRE_PROTOCOL_ip4);
- case VNET_LINK_IP6:
- return (GRE_PROTOCOL_ip6);
- case VNET_LINK_MPLS:
- return (GRE_PROTOCOL_mpls_unicast);
- case VNET_LINK_ETHERNET:
- return (GRE_PROTOCOL_teb);
- case VNET_LINK_ARP:
- return (GRE_PROTOCOL_arp);
- case VNET_LINK_NSH:
- ASSERT (0);
- break;
- }
- ASSERT (0);
- return (GRE_PROTOCOL_ip4);
-}
-
-static u8 *
-gre_build_rewrite (vnet_main_t * vnm,
- u32 sw_if_index,
- vnet_link_t link_type, const void *dst_address)
-{
- gre_main_t *gm = &gre_main;
- const ip46_address_t *dst;
- ip4_and_gre_header_t *h4;
- ip6_and_gre_header_t *h6;
- gre_header_t *gre;
- u8 *rewrite = NULL;
- gre_tunnel_t *t;
- u32 ti;
- u8 is_ipv6;
-
- dst = dst_address;
- ti = gm->tunnel_index_by_sw_if_index[sw_if_index];
-
- if (~0 == ti)
- /* not one of ours */
- return (0);
-
- t = pool_elt_at_index (gm->tunnels, ti);
-
- is_ipv6 = t->tunnel_dst.fp_proto == FIB_PROTOCOL_IP6 ? 1 : 0;
-
- if (!is_ipv6)
- {
- vec_validate (rewrite, sizeof (*h4) - 1);
- h4 = (ip4_and_gre_header_t *) rewrite;
- gre = &h4->gre;
- h4->ip4.ip_version_and_header_length = 0x45;
- h4->ip4.ttl = 254;
- h4->ip4.protocol = IP_PROTOCOL_GRE;
- /* fixup ip4 header length and checksum after-the-fact */
- h4->ip4.src_address.as_u32 = t->tunnel_src.ip4.as_u32;
- h4->ip4.dst_address.as_u32 = dst->ip4.as_u32;
- h4->ip4.checksum = ip4_header_checksum (&h4->ip4);
- }
- else
- {
- vec_validate (rewrite, sizeof (*h6) - 1);
- h6 = (ip6_and_gre_header_t *) rewrite;
- gre = &h6->gre;
- h6->ip6.ip_version_traffic_class_and_flow_label =
- clib_host_to_net_u32 (6 << 28);
- h6->ip6.hop_limit = 255;
- h6->ip6.protocol = IP_PROTOCOL_GRE;
- /* fixup ip6 header length and checksum after-the-fact */
- h6->ip6.src_address.as_u64[0] = t->tunnel_src.ip6.as_u64[0];
- h6->ip6.src_address.as_u64[1] = t->tunnel_src.ip6.as_u64[1];
- h6->ip6.dst_address.as_u64[0] = dst->ip6.as_u64[0];
- h6->ip6.dst_address.as_u64[1] = dst->ip6.as_u64[1];
- }
-
- if (PREDICT_FALSE (t->type == GRE_TUNNEL_TYPE_ERSPAN))
- {
- gre->protocol = clib_host_to_net_u16 (GRE_PROTOCOL_erspan);
- gre->flags_and_version = clib_host_to_net_u16 (GRE_FLAGS_SEQUENCE);
- }
- else
- gre->protocol =
- clib_host_to_net_u16 (gre_proto_from_vnet_link (link_type));
-
- return (rewrite);
-}
-
-static void
-gre44_fixup (vlib_main_t * vm,
- const ip_adjacency_t * adj, vlib_buffer_t * b0, const void *data)
-{
- tunnel_encap_decap_flags_t flags;
- ip4_and_gre_header_t *ip0;
-
- ip0 = vlib_buffer_get_current (b0);
- flags = pointer_to_uword (data);
-
- /* Fixup the checksum and len fields in the GRE tunnel encap
- * that was applied at the midchain node */
- ip0->ip4.length =
- clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0));
- tunnel_encap_fixup_4o4 (flags, (ip4_header_t *) (ip0 + 1), &ip0->ip4);
- ip0->ip4.checksum = ip4_header_checksum (&ip0->ip4);
-}
-
-static void
-gre64_fixup (vlib_main_t * vm,
- const ip_adjacency_t * adj, vlib_buffer_t * b0, const void *data)
-{
- tunnel_encap_decap_flags_t flags;
- ip4_and_gre_header_t *ip0;
-
- ip0 = vlib_buffer_get_current (b0);
- flags = pointer_to_uword (data);
-
- /* Fixup the checksum and len fields in the GRE tunnel encap
- * that was applied at the midchain node */
- ip0->ip4.length =
- clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0));
- tunnel_encap_fixup_6o4 (flags, (ip6_header_t *) (ip0 + 1), &ip0->ip4);
- ip0->ip4.checksum = ip4_header_checksum (&ip0->ip4);
-}
-
-static void
-grex4_fixup (vlib_main_t * vm,
- const ip_adjacency_t * adj, vlib_buffer_t * b0, const void *data)
-{
- ip4_header_t *ip0;
-
- ip0 = vlib_buffer_get_current (b0);
-
- /* Fixup the checksum and len fields in the GRE tunnel encap
- * that was applied at the midchain node */
- ip0->length = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0));
- ip0->checksum = ip4_header_checksum (ip0);
-}
-
-static void
-gre46_fixup (vlib_main_t * vm,
- const ip_adjacency_t * adj, vlib_buffer_t * b0, const void *data)
-{
- tunnel_encap_decap_flags_t flags;
- ip6_and_gre_header_t *ip0;
-
- ip0 = vlib_buffer_get_current (b0);
- flags = pointer_to_uword (data);
-
- /* Fixup the payload length field in the GRE tunnel encap that was applied
- * at the midchain node */
- ip0->ip6.payload_length =
- clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0) -
- sizeof (ip0->ip6));
- tunnel_encap_fixup_4o6 (flags, b0, (ip4_header_t *) (ip0 + 1), &ip0->ip6);
-}
-
-static void
-gre66_fixup (vlib_main_t * vm,
- const ip_adjacency_t * adj, vlib_buffer_t * b0, const void *data)
-{
- tunnel_encap_decap_flags_t flags;
- ip6_and_gre_header_t *ip0;
-
- ip0 = vlib_buffer_get_current (b0);
- flags = pointer_to_uword (data);
-
- /* Fixup the payload length field in the GRE tunnel encap that was applied
- * at the midchain node */
- ip0->ip6.payload_length =
- clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0) -
- sizeof (ip0->ip6));
- tunnel_encap_fixup_6o6 (flags, (ip6_header_t *) (ip0 + 1), &ip0->ip6);
-}
-
-static void
-grex6_fixup (vlib_main_t * vm,
- const ip_adjacency_t * adj, vlib_buffer_t * b0, const void *data)
-{
- ip6_and_gre_header_t *ip0;
-
- ip0 = vlib_buffer_get_current (b0);
-
- /* Fixup the payload length field in the GRE tunnel encap that was applied
- * at the midchain node */
- ip0->ip6.payload_length =
- clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0) -
- sizeof (ip0->ip6));
-}
-
-/**
- * return the appropriate fixup function given the overlay (link-type) and
- * underlay (fproto) combination
- */
-static adj_midchain_fixup_t
-gre_get_fixup (fib_protocol_t fproto, vnet_link_t lt)
-{
- if (fproto == FIB_PROTOCOL_IP6 && lt == VNET_LINK_IP6)
- return (gre66_fixup);
- if (fproto == FIB_PROTOCOL_IP6 && lt == VNET_LINK_IP4)
- return (gre46_fixup);
- if (fproto == FIB_PROTOCOL_IP4 && lt == VNET_LINK_IP6)
- return (gre64_fixup);
- if (fproto == FIB_PROTOCOL_IP4 && lt == VNET_LINK_IP4)
- return (gre44_fixup);
- if (fproto == FIB_PROTOCOL_IP6)
- return (grex6_fixup);
- if (fproto == FIB_PROTOCOL_IP4)
- return (grex4_fixup);
-
- ASSERT (0);
- return (gre44_fixup);
-}
-
-void
-gre_update_adj (vnet_main_t * vnm, u32 sw_if_index, adj_index_t ai)
-{
- gre_main_t *gm = &gre_main;
- gre_tunnel_t *t;
- adj_flags_t af;
- u32 ti;
-
- ti = gm->tunnel_index_by_sw_if_index[sw_if_index];
- t = pool_elt_at_index (gm->tunnels, ti);
- af = ADJ_FLAG_NONE;
-
- /*
- * the user has not requested that the load-balancing be based on
- * a flow hash of the inner packet. so use the stacking to choose
- * a path.
- */
- if (!(t->flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_INNER_HASH))
- af |= ADJ_FLAG_MIDCHAIN_IP_STACK;
-
- adj_nbr_midchain_update_rewrite
- (ai, gre_get_fixup (t->tunnel_dst.fp_proto,
- adj_get_link_type (ai)),
- uword_to_pointer (t->flags, void *), af,
- gre_build_rewrite (vnm, sw_if_index, adj_get_link_type (ai),
- &t->tunnel_dst.fp_addr));
-
- gre_tunnel_stack (ai);
-}
-
-adj_walk_rc_t
-mgre_mk_complete_walk (adj_index_t ai, void *data)
-{
- mgre_walk_ctx_t *ctx = data;
- adj_flags_t af;
-
- af = ADJ_FLAG_NONE;
-
- /*
- * the user has not requested that the load-balancing be based on
- * a flow hash of the inner packet. so use the stacking to choose
- * a path.
- */
- if (!(ctx->t->flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_INNER_HASH))
- af |= ADJ_FLAG_MIDCHAIN_IP_STACK;
-
- adj_nbr_midchain_update_rewrite
- (ai, gre_get_fixup (ctx->t->tunnel_dst.fp_proto,
- adj_get_link_type (ai)),
- uword_to_pointer (ctx->t->flags, void *),
- af,
- gre_build_rewrite (vnet_get_main (),
- ctx->t->sw_if_index,
- adj_get_link_type (ai),
- &teib_entry_get_nh (ctx->ne)->fp_addr));
-
- teib_entry_adj_stack (ctx->ne, ai);
-
- return (ADJ_WALK_RC_CONTINUE);
-}
-
-adj_walk_rc_t
-mgre_mk_incomplete_walk (adj_index_t ai, void *data)
-{
- gre_tunnel_t *t = data;
-
- adj_nbr_midchain_update_rewrite (ai, gre_get_fixup (t->tunnel_dst.fp_proto,
- adj_get_link_type (ai)),
- NULL, ADJ_FLAG_NONE, NULL);
-
- adj_midchain_delegate_unstack (ai);
-
- return (ADJ_WALK_RC_CONTINUE);
-}
-
-void
-mgre_update_adj (vnet_main_t * vnm, u32 sw_if_index, adj_index_t ai)
-{
- gre_main_t *gm = &gre_main;
- ip_adjacency_t *adj;
- teib_entry_t *ne;
- gre_tunnel_t *t;
- u32 ti;
-
- adj = adj_get (ai);
- ti = gm->tunnel_index_by_sw_if_index[sw_if_index];
- t = pool_elt_at_index (gm->tunnels, ti);
-
- ne = teib_entry_find_46 (sw_if_index,
- adj->ia_nh_proto, &adj->sub_type.nbr.next_hop);
-
- if (NULL == ne)
- {
- // no TEIB entry to provide the next-hop
- adj_nbr_midchain_update_rewrite (
- ai, gre_get_fixup (t->tunnel_dst.fp_proto, adj_get_link_type (ai)),
- uword_to_pointer (t->flags, void *), ADJ_FLAG_NONE, NULL);
- return;
- }
-
- mgre_walk_ctx_t ctx = {
- .t = t,
- .ne = ne
- };
- adj_nbr_walk_nh (sw_if_index,
- adj->ia_nh_proto,
- &adj->sub_type.nbr.next_hop, mgre_mk_complete_walk, &ctx);
-}
-#endif /* CLIB_MARCH_VARIANT */
-
-typedef enum
-{
- GRE_ENCAP_NEXT_L2_MIDCHAIN,
- GRE_ENCAP_N_NEXT,
-} gre_encap_next_t;
-
-/**
- * @brief TX function. Only called for L2 payload including TEB or ERSPAN.
- * L3 traffic uses the adj-midchains.
- */
-static_always_inline u32
-gre_encap_inline (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame, gre_tunnel_type_t type)
-{
- gre_main_t *gm = &gre_main;
- u32 *from, n_left_from;
- vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b = bufs;
- u32 sw_if_index[2] = { ~0, ~0 };
- const gre_tunnel_t *gt[2] = { 0 };
- adj_index_t adj_index[2] = { ADJ_INDEX_INVALID, ADJ_INDEX_INVALID };
-
- from = vlib_frame_vector_args (frame);
- n_left_from = frame->n_vectors;
- vlib_get_buffers (vm, from, bufs, n_left_from);
-
- while (n_left_from >= 2)
- {
-
- if (PREDICT_FALSE
- (sw_if_index[0] != vnet_buffer (b[0])->sw_if_index[VLIB_TX]))
- {
- const vnet_hw_interface_t *hi;
- sw_if_index[0] = vnet_buffer (b[0])->sw_if_index[VLIB_TX];
- hi = vnet_get_sup_hw_interface (gm->vnet_main, sw_if_index[0]);
- gt[0] = &gm->tunnels[hi->dev_instance];
- adj_index[0] = gt[0]->l2_adj_index;
- }
- if (PREDICT_FALSE
- (sw_if_index[1] != vnet_buffer (b[1])->sw_if_index[VLIB_TX]))
- {
- const vnet_hw_interface_t *hi;
- sw_if_index[1] = vnet_buffer (b[1])->sw_if_index[VLIB_TX];
- hi = vnet_get_sup_hw_interface (gm->vnet_main, sw_if_index[1]);
- gt[1] = &gm->tunnels[hi->dev_instance];
- adj_index[1] = gt[1]->l2_adj_index;
- }
-
- vnet_buffer (b[0])->ip.adj_index[VLIB_TX] = adj_index[0];
- vnet_buffer (b[1])->ip.adj_index[VLIB_TX] = adj_index[1];
-
- if (type == GRE_TUNNEL_TYPE_ERSPAN)
- {
- /* Encap GRE seq# and ERSPAN type II header */
- erspan_t2_t *h0;
- u32 seq_num;
- u64 hdr;
- vlib_buffer_advance (b[0], -sizeof (erspan_t2_t));
- h0 = vlib_buffer_get_current (b[0]);
- seq_num = clib_atomic_fetch_add (&gt[0]->gre_sn->seq_num, 1);
- hdr = clib_host_to_net_u64 (ERSPAN_HDR2);
- h0->seq_num = clib_host_to_net_u32 (seq_num);
- h0->t2_u64 = hdr;
- h0->t2.cos_en_t_session |= clib_host_to_net_u16 (gt[0]->session_id);
- }
- if (type == GRE_TUNNEL_TYPE_ERSPAN)
- {
- /* Encap GRE seq# and ERSPAN type II header */
- erspan_t2_t *h0;
- u32 seq_num;
- u64 hdr;
- vlib_buffer_advance (b[1], -sizeof (erspan_t2_t));
- h0 = vlib_buffer_get_current (b[1]);
- seq_num = clib_atomic_fetch_add (&gt[1]->gre_sn->seq_num, 1);
- hdr = clib_host_to_net_u64 (ERSPAN_HDR2);
- h0->seq_num = clib_host_to_net_u32 (seq_num);
- h0->t2_u64 = hdr;
- h0->t2.cos_en_t_session |= clib_host_to_net_u16 (gt[1]->session_id);
- }
-
- if (PREDICT_FALSE (b[0]->flags & VLIB_BUFFER_IS_TRACED))
- {
- gre_tx_trace_t *tr = vlib_add_trace (vm, node,
- b[0], sizeof (*tr));
- tr->tunnel_id = gt[0] - gm->tunnels;
- tr->src = gt[0]->tunnel_src;
- tr->dst = gt[0]->tunnel_dst.fp_addr;
- tr->length = vlib_buffer_length_in_chain (vm, b[0]);
- }
- if (PREDICT_FALSE (b[1]->flags & VLIB_BUFFER_IS_TRACED))
- {
- gre_tx_trace_t *tr = vlib_add_trace (vm, node,
- b[1], sizeof (*tr));
- tr->tunnel_id = gt[1] - gm->tunnels;
- tr->src = gt[1]->tunnel_src;
- tr->dst = gt[1]->tunnel_dst.fp_addr;
- tr->length = vlib_buffer_length_in_chain (vm, b[1]);
- }
-
- b += 2;
- n_left_from -= 2;
- }
-
- while (n_left_from >= 1)
- {
-
- if (PREDICT_FALSE
- (sw_if_index[0] != vnet_buffer (b[0])->sw_if_index[VLIB_TX]))
- {
- const vnet_hw_interface_t *hi;
- sw_if_index[0] = vnet_buffer (b[0])->sw_if_index[VLIB_TX];
- hi = vnet_get_sup_hw_interface (gm->vnet_main, sw_if_index[0]);
- gt[0] = &gm->tunnels[hi->dev_instance];
- adj_index[0] = gt[0]->l2_adj_index;
- }
-
- vnet_buffer (b[0])->ip.adj_index[VLIB_TX] = adj_index[0];
-
- if (type == GRE_TUNNEL_TYPE_ERSPAN)
- {
- /* Encap GRE seq# and ERSPAN type II header */
- erspan_t2_t *h0;
- u32 seq_num;
- u64 hdr;
- ASSERT (gt[0]->type == GRE_TUNNEL_TYPE_ERSPAN);
- vlib_buffer_advance (b[0], -sizeof (erspan_t2_t));
- h0 = vlib_buffer_get_current (b[0]);
- seq_num = clib_atomic_fetch_add (&gt[0]->gre_sn->seq_num, 1);
- hdr = clib_host_to_net_u64 (ERSPAN_HDR2);
- h0->seq_num = clib_host_to_net_u32 (seq_num);
- h0->t2_u64 = hdr;
- h0->t2.cos_en_t_session |= clib_host_to_net_u16 (gt[0]->session_id);
- }
-
- if (PREDICT_FALSE (b[0]->flags & VLIB_BUFFER_IS_TRACED))
- {
- gre_tx_trace_t *tr = vlib_add_trace (vm, node,
- b[0], sizeof (*tr));
- tr->tunnel_id = gt[0] - gm->tunnels;
- tr->src = gt[0]->tunnel_src;
- tr->dst = gt[0]->tunnel_dst.fp_addr;
- tr->length = vlib_buffer_length_in_chain (vm, b[0]);
- }
-
- b += 1;
- n_left_from -= 1;
- }
-
- vlib_buffer_enqueue_to_single_next (vm, node, from,
- GRE_ENCAP_NEXT_L2_MIDCHAIN,
- frame->n_vectors);
-
- vlib_node_increment_counter (vm, node->node_index,
- GRE_ERROR_PKTS_ENCAP, frame->n_vectors);
-
- return frame->n_vectors;
-}
-
-static char *gre_error_strings[] = {
-#define gre_error(n,s) s,
-#include "error.def"
-#undef gre_error
-};
-
-VLIB_NODE_FN (gre_teb_encap_node) (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
-{
- return (gre_encap_inline (vm, node, frame, GRE_TUNNEL_TYPE_TEB));
-}
-
-VLIB_NODE_FN (gre_erspan_encap_node) (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
-{
- return (gre_encap_inline (vm, node, frame, GRE_TUNNEL_TYPE_ERSPAN));
-}
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (gre_teb_encap_node) =
-{
- .name = "gre-teb-encap",
- .vector_size = sizeof (u32),
- .format_trace = format_gre_tx_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
- .n_errors = GRE_N_ERROR,
- .error_strings = gre_error_strings,
- .n_next_nodes = GRE_ENCAP_N_NEXT,
- .next_nodes = {
- [GRE_ENCAP_NEXT_L2_MIDCHAIN] = "adj-l2-midchain",
- },
-};
-VLIB_REGISTER_NODE (gre_erspan_encap_node) =
-{
- .name = "gre-erspan-encap",
- .vector_size = sizeof (u32),
- .format_trace = format_gre_tx_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
- .n_errors = GRE_N_ERROR,
- .error_strings = gre_error_strings,
- .n_next_nodes = GRE_ENCAP_N_NEXT,
- .next_nodes = {
- [GRE_ENCAP_NEXT_L2_MIDCHAIN] = "adj-l2-midchain",
- },
-};
-/* *INDENT-ON* */
-
-#ifndef CLIB_MARCH_VARIANT
-static u8 *
-format_gre_tunnel_name (u8 * s, va_list * args)
-{
- u32 dev_instance = va_arg (*args, u32);
- gre_main_t *gm = &gre_main;
- gre_tunnel_t *t;
-
- if (dev_instance >= vec_len (gm->tunnels))
- return format (s, "<improperly-referenced>");
-
- t = pool_elt_at_index (gm->tunnels, dev_instance);
- return format (s, "gre%d", t->user_instance);
-}
-
-static u8 *
-format_gre_device (u8 * s, va_list * args)
-{
- u32 dev_instance = va_arg (*args, u32);
- CLIB_UNUSED (int verbose) = va_arg (*args, int);
-
- s = format (s, "GRE tunnel: id %d\n", dev_instance);
- return s;
-}
-
-static int
-gre_tunnel_desc (u32 sw_if_index,
- ip46_address_t * src, ip46_address_t * dst, u8 * is_l2)
-{
- gre_main_t *gm = &gre_main;
- gre_tunnel_t *t;
- u32 ti;
-
- ti = gm->tunnel_index_by_sw_if_index[sw_if_index];
-
- if (~0 == ti)
- /* not one of ours */
- return -1;
-
- t = pool_elt_at_index (gm->tunnels, ti);
-
- *src = t->tunnel_src;
- *dst = t->tunnel_dst.fp_addr;
- *is_l2 = t->type == GRE_TUNNEL_TYPE_TEB;
-
- return (0);
-}
-
-/* *INDENT-OFF* */
-VNET_DEVICE_CLASS (gre_device_class) = {
- .name = "GRE tunnel device",
- .format_device_name = format_gre_tunnel_name,
- .format_device = format_gre_device,
- .format_tx_trace = format_gre_tx_trace,
- .admin_up_down_function = gre_interface_admin_up_down,
- .ip_tun_desc = gre_tunnel_desc,
-#ifdef SOON
- .clear counter = 0;
-#endif
-};
-
-VNET_HW_INTERFACE_CLASS (gre_hw_interface_class) = {
- .name = "GRE",
- .format_header = format_gre_header_with_length,
- .unformat_header = unformat_gre_header,
- .build_rewrite = gre_build_rewrite,
- .update_adjacency = gre_update_adj,
- .flags = VNET_HW_INTERFACE_CLASS_FLAG_P2P,
-};
-
-VNET_HW_INTERFACE_CLASS (mgre_hw_interface_class) = {
- .name = "mGRE",
- .format_header = format_gre_header_with_length,
- .unformat_header = unformat_gre_header,
- .build_rewrite = gre_build_rewrite,
- .update_adjacency = mgre_update_adj,
- .flags = VNET_HW_INTERFACE_CLASS_FLAG_NBMA,
-};
-/* *INDENT-ON* */
-#endif /* CLIB_MARCH_VARIANT */
-
-static void
-add_protocol (gre_main_t * gm, gre_protocol_t protocol, char *protocol_name)
-{
- gre_protocol_info_t *pi;
- u32 i;
-
- vec_add2 (gm->protocol_infos, pi, 1);
- i = pi - gm->protocol_infos;
-
- pi->name = protocol_name;
- pi->protocol = protocol;
- pi->next_index = pi->node_index = ~0;
-
- hash_set (gm->protocol_info_by_protocol, protocol, i);
- hash_set_mem (gm->protocol_info_by_name, pi->name, i);
-}
-
-static clib_error_t *
-gre_init (vlib_main_t * vm)
-{
- gre_main_t *gm = &gre_main;
- clib_error_t *error;
- ip_main_t *im = &ip_main;
- ip_protocol_info_t *pi;
-
- clib_memset (gm, 0, sizeof (gm[0]));
- gm->vlib_main = vm;
- gm->vnet_main = vnet_get_main ();
-
- if ((error = vlib_call_init_function (vm, ip_main_init)))
- return error;
-
- if ((error = vlib_call_init_function (vm, ip4_lookup_init)))
- return error;
-
- if ((error = vlib_call_init_function (vm, ip6_lookup_init)))
- return error;
-
- /* Set up the ip packet generator */
- pi = ip_get_protocol_info (im, IP_PROTOCOL_GRE);
- pi->format_header = format_gre_header;
- pi->unformat_pg_edit = unformat_pg_gre_header;
-
- gm->protocol_info_by_name = hash_create_string (0, sizeof (uword));
- gm->protocol_info_by_protocol = hash_create (0, sizeof (uword));
- gm->tunnel_by_key4 =
- hash_create_mem (0, sizeof (gre_tunnel_key4_t), sizeof (uword));
- gm->tunnel_by_key6 =
- hash_create_mem (0, sizeof (gre_tunnel_key6_t), sizeof (uword));
- gm->seq_num_by_key =
- hash_create_mem (0, sizeof (gre_sn_key_t), sizeof (uword));
-
-#define _(n,s) add_protocol (gm, GRE_PROTOCOL_##s, #s);
- foreach_gre_protocol
-#undef _
- return vlib_call_init_function (vm, gre_input_init);
-}
-
-VLIB_INIT_FUNCTION (gre_init);
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vnet/gre/gre.h b/src/vnet/gre/gre.h
deleted file mode 100644
index ea085bf0fa1..00000000000
--- a/src/vnet/gre/gre.h
+++ /dev/null
@@ -1,443 +0,0 @@
-/*
- * gre.h: types/functions for gre.
- *
- * Copyright (c) 2012 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_gre_h
-#define included_gre_h
-
-#include <vnet/vnet.h>
-#include <vnet/gre/packet.h>
-#include <vnet/ip/ip.h>
-#include <vnet/ip/format.h>
-#include <vnet/adj/adj_types.h>
-#include <vnet/tunnel/tunnel.h>
-#include <vnet/teib/teib.h>
-
-extern vnet_hw_interface_class_t gre_hw_interface_class;
-extern vnet_hw_interface_class_t mgre_hw_interface_class;
-
-typedef enum
-{
-#define gre_error(n,s) GRE_ERROR_##n,
-#include <vnet/gre/error.def>
-#undef gre_error
- GRE_N_ERROR,
-} gre_error_t;
-
-/**
- * L3: GRE (i.e. this tunnel is in L3 mode)
- * TEB: Transparent Ethernet Bridging - the tunnel is in L2 mode
- * ERSPAN: type 2 - the tunnel is for port mirror SPAN output. Each tunnel is
- * associated with a session ID and expected to be used for encap
- * and output of mirrored packet from a L2 network only. There is
- * no support for receiving ERSPAN packets from a GRE ERSPAN tunnel
- */
-#define foreach_gre_tunnel_type \
- _(L3, "L3") \
- _(TEB, "TEB") \
- _(ERSPAN, "ERSPAN") \
-
-/**
- * @brief The GRE tunnel type
- */
-typedef enum gre_tunnel_type_t_
-{
-#define _(n, s) GRE_TUNNEL_TYPE_##n,
- foreach_gre_tunnel_type
-#undef _
-} __clib_packed gre_tunnel_type_t;
-
-extern u8 *format_gre_tunnel_type (u8 * s, va_list * args);
-
-
-/**
- * A GRE payload protocol registration
- */
-typedef struct
-{
- /** Name (a c string). */
- char *name;
-
- /** GRE protocol type in host byte order. */
- gre_protocol_t protocol;
-
- /** GRE tunnel type */
- gre_tunnel_type_t tunnel_type;
-
- /** Node which handles this type. */
- u32 node_index;
-
- /** Next index for this type. */
- u32 next_index;
-} gre_protocol_info_t;
-
-/**
- * Elements of the GRE key that are common for v6 and v6 addresses
- */
-typedef struct gre_tunnel_key_common_t_
-{
- union
- {
- struct
- {
- u32 fib_index;
- u16 session_id;
- gre_tunnel_type_t type;
- tunnel_mode_t mode;
- };
- u64 as_u64;
- };
-} gre_tunnel_key_common_t;
-
-STATIC_ASSERT_SIZEOF (gre_tunnel_key_common_t, sizeof (u64));
-
-/**
- * @brief Key for a IPv4 GRE Tunnel
- */
-typedef struct gre_tunnel_key4_t_
-{
- /**
- * Source and destination IP addresses
- */
- union
- {
- struct
- {
- ip4_address_t gtk_src;
- ip4_address_t gtk_dst;
- };
- u64 gtk_as_u64;
- };
-
- /** address independent attributes */
- gre_tunnel_key_common_t gtk_common;
-} __attribute__ ((packed)) gre_tunnel_key4_t;
-
-STATIC_ASSERT_SIZEOF (gre_tunnel_key4_t, 2 * sizeof (u64));
-
-/**
- * @brief Key for a IPv6 GRE Tunnel
- * We use a different type so that the V4 key hash is as small as possible
- */
-typedef struct gre_tunnel_key6_t_
-{
- /**
- * Source and destination IP addresses
- */
- ip6_address_t gtk_src;
- ip6_address_t gtk_dst;
-
- /** address independent attributes */
- gre_tunnel_key_common_t gtk_common;
-} __attribute__ ((packed)) gre_tunnel_key6_t;
-
-STATIC_ASSERT_SIZEOF (gre_tunnel_key6_t, 5 * sizeof (u64));
-
-/**
- * Union of the two possible key types
- */
-typedef union gre_tunnel_key_t_
-{
- gre_tunnel_key4_t gtk_v4;
- gre_tunnel_key6_t gtk_v6;
-} gre_tunnel_key_t;
-
-/**
- * The session ID is only a 10 bit value
- */
-#define GTK_SESSION_ID_MAX (0x3ff)
-
-/**
- * Used for GRE header seq number generation for ERSPAN encap
- */
-typedef struct
-{
- u32 seq_num;
- u32 ref_count;
-} gre_sn_t;
-
-/**
- * Hash key for GRE header seq number generation for ERSPAN encap
- */
-typedef struct
-{
- ip46_address_t src;
- ip46_address_t dst;
- u32 fib_index;
-} gre_sn_key_t;
-
-/**
- * @brief A representation of a GRE tunnel
- */
-typedef struct
-{
- /**
- * Required for pool_get_aligned
- */
- CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
-
- /**
- * The tunnel's source/local address
- */
- ip46_address_t tunnel_src;
- /**
- * The tunnel's destination/remote address
- */
- fib_prefix_t tunnel_dst;
- /**
- * The FIB in which the src.dst address are present
- */
- u32 outer_fib_index;
- u32 hw_if_index;
- u32 sw_if_index;
- gre_tunnel_type_t type;
- tunnel_mode_t mode;
- tunnel_encap_decap_flags_t flags;
-
- /**
- * an L2 tunnel always rquires an L2 midchain. cache here for DP.
- */
- adj_index_t l2_adj_index;
-
- /**
- * ERSPAN type 2 session ID, least significant 10 bits of u16
- */
- u16 session_id;
-
- /**
- * GRE header sequence number (SN) used for ERSPAN type 2 header, must be
- * bumped automically to be thread safe. As multiple GRE tunnels are created
- * for the same fib-idx/DIP/SIP with different ERSPAN session number, they all
- * share the same SN which is kept per FIB/DIP/SIP, as specified by RFC2890.
- */
- gre_sn_t *gre_sn;
-
-
- u32 dev_instance; /* Real device instance in tunnel vector */
- u32 user_instance; /* Instance name being shown to user */
-} gre_tunnel_t;
-
-typedef struct
-{
- u8 next_index;
- u8 tunnel_type;
-} next_info_t;
-
-/**
- * @brief GRE related global data
- */
-typedef struct
-{
- /**
- * pool of tunnel instances
- */
- gre_tunnel_t *tunnels;
-
- /**
- * GRE payload protocol registrations
- */
- gre_protocol_info_t *protocol_infos;
-
- /**
- * Hash tables mapping name/protocol to protocol info index.
- */
- uword *protocol_info_by_name, *protocol_info_by_protocol;
-
- /**
- * Hash mapping to tunnels with ipv4 src/dst addr
- */
- uword *tunnel_by_key4;
-
- /**
- * Hash mapping to tunnels with ipv6 src/dst addr
- */
- uword *tunnel_by_key6;
-
- /**
- * Hash mapping tunnel src/dst addr and fib-idx to sequence number
- */
- uword *seq_num_by_key;
-
- /**
- * Mapping from sw_if_index to tunnel index
- */
- u32 *tunnel_index_by_sw_if_index;
-
- /* Sparse vector mapping gre protocol in network byte order
- to next index. */
- next_info_t *next_by_protocol;
-
- /* convenience */
- vlib_main_t *vlib_main;
- vnet_main_t *vnet_main;
-
- /* Record used instances */
- uword *instance_used;
-
- u16 msg_id_base;
-} gre_main_t;
-
-/**
- * @brief IPv4 and GRE header.
- */
-/* *INDENT-OFF* */
-typedef CLIB_PACKED (struct {
- ip4_header_t ip4;
- gre_header_t gre;
-}) ip4_and_gre_header_t;
-/* *INDENT-ON* */
-
-/**
- * @brief IPv6 and GRE header.
- */
-/* *INDENT-OFF* */
-typedef CLIB_PACKED (struct {
- ip6_header_t ip6;
- gre_header_t gre;
-}) ip6_and_gre_header_t;
-/* *INDENT-ON* */
-
-always_inline gre_protocol_info_t *
-gre_get_protocol_info (gre_main_t * em, gre_protocol_t protocol)
-{
- uword *p = hash_get (em->protocol_info_by_protocol, protocol);
- return p ? vec_elt_at_index (em->protocol_infos, p[0]) : 0;
-}
-
-extern gre_main_t gre_main;
-
-extern clib_error_t *gre_interface_admin_up_down (vnet_main_t * vnm,
- u32 hw_if_index, u32 flags);
-
-extern void gre_tunnel_stack (adj_index_t ai);
-extern void gre_update_adj (vnet_main_t * vnm,
- u32 sw_if_index, adj_index_t ai);
-
-typedef struct mgre_walk_ctx_t_
-{
- const gre_tunnel_t *t;
- const teib_entry_t *ne;
-} mgre_walk_ctx_t;
-
-adj_walk_rc_t mgre_mk_complete_walk (adj_index_t ai, void *data);
-adj_walk_rc_t mgre_mk_incomplete_walk (adj_index_t ai, void *data);
-
-format_function_t format_gre_protocol;
-format_function_t format_gre_header;
-format_function_t format_gre_header_with_length;
-
-extern vlib_node_registration_t gre4_input_node;
-extern vlib_node_registration_t gre6_input_node;
-extern vlib_node_registration_t gre_erspan_encap_node;
-extern vlib_node_registration_t gre_teb_encap_node;
-extern vnet_device_class_t gre_device_class;
-
-/* Parse gre protocol as 0xXXXX or protocol name.
- In either host or network byte order. */
-unformat_function_t unformat_gre_protocol_host_byte_order;
-unformat_function_t unformat_gre_protocol_net_byte_order;
-
-/* Parse gre header. */
-unformat_function_t unformat_gre_header;
-unformat_function_t unformat_pg_gre_header;
-
-void
-gre_register_input_protocol (vlib_main_t * vm, gre_protocol_t protocol,
- u32 node_index, gre_tunnel_type_t tunnel_type);
-
-/* manually added to the interface output node in gre.c */
-#define GRE_OUTPUT_NEXT_LOOKUP 1
-
-typedef struct
-{
- u8 is_add;
- gre_tunnel_type_t type;
- tunnel_mode_t mode;
- u8 is_ipv6;
- u32 instance;
- ip46_address_t src, dst;
- u32 outer_table_id;
- u16 session_id;
- tunnel_encap_decap_flags_t flags;
-} vnet_gre_tunnel_add_del_args_t;
-
-extern int vnet_gre_tunnel_add_del (vnet_gre_tunnel_add_del_args_t * a,
- u32 * sw_if_indexp);
-
-static inline void
-gre_mk_key4 (ip4_address_t src,
- ip4_address_t dst,
- u32 fib_index,
- gre_tunnel_type_t ttype,
- tunnel_mode_t tmode, u16 session_id, gre_tunnel_key4_t * key)
-{
- key->gtk_src = src;
- key->gtk_dst = dst;
- key->gtk_common.type = ttype;
- key->gtk_common.mode = tmode;
- key->gtk_common.fib_index = fib_index;
- key->gtk_common.session_id = session_id;
-}
-
-static inline int
-gre_match_key4 (const gre_tunnel_key4_t * key1,
- const gre_tunnel_key4_t * key2)
-{
- return ((key1->gtk_as_u64 == key2->gtk_as_u64) &&
- (key1->gtk_common.as_u64 == key2->gtk_common.as_u64));
-}
-
-static inline void
-gre_mk_key6 (const ip6_address_t * src,
- const ip6_address_t * dst,
- u32 fib_index,
- gre_tunnel_type_t ttype,
- tunnel_mode_t tmode, u16 session_id, gre_tunnel_key6_t * key)
-{
- key->gtk_src = *src;
- key->gtk_dst = *dst;
- key->gtk_common.type = ttype;
- key->gtk_common.mode = tmode;
- key->gtk_common.fib_index = fib_index;
- key->gtk_common.session_id = session_id;
-}
-
-static inline int
-gre_match_key6 (const gre_tunnel_key6_t * key1,
- const gre_tunnel_key6_t * key2)
-{
- return (ip6_address_is_equal (&key1->gtk_src, &key2->gtk_src) &&
- ip6_address_is_equal (&key1->gtk_dst, &key2->gtk_dst) &&
- (key1->gtk_common.as_u64 == key2->gtk_common.as_u64));
-}
-
-static inline void
-gre_mk_sn_key (const gre_tunnel_t * gt, gre_sn_key_t * key)
-{
- key->src = gt->tunnel_src;
- key->dst = gt->tunnel_dst.fp_addr;
- key->fib_index = gt->outer_fib_index;
-}
-
-#endif /* included_gre_h */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vnet/gre/gre_api.c b/src/vnet/gre/gre_api.c
deleted file mode 100644
index 59a1d3d738d..00000000000
--- a/src/vnet/gre/gre_api.c
+++ /dev/null
@@ -1,220 +0,0 @@
-/*
- *------------------------------------------------------------------
- * gre_api.c - gre 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/gre/gre.h>
-#include <vnet/fib/fib_table.h>
-#include <vnet/tunnel/tunnel_types_api.h>
-#include <vnet/ip/ip_types_api.h>
-
-#include <vnet/gre/gre.api_enum.h>
-#include <vnet/gre/gre.api_types.h>
-
-#define REPLY_MSG_ID_BASE gre_main.msg_id_base
-#include <vlibapi/api_helper_macros.h>
-
-static int
-gre_tunnel_type_decode (vl_api_gre_tunnel_type_t in, gre_tunnel_type_t * out)
-{
- switch (in)
- {
-#define _(n, v) \
- case GRE_API_TUNNEL_TYPE_##n: \
- *out = GRE_TUNNEL_TYPE_##n; \
- return (0);
- foreach_gre_tunnel_type
-#undef _
- }
-
- return (VNET_API_ERROR_INVALID_VALUE);
-}
-
-static vl_api_gre_tunnel_type_t
-gre_tunnel_type_encode (gre_tunnel_type_t in)
-{
- vl_api_gre_tunnel_type_t out = GRE_API_TUNNEL_TYPE_L3;
-
- switch (in)
- {
-#define _(n, v) \
- case GRE_TUNNEL_TYPE_##n: \
- out = GRE_API_TUNNEL_TYPE_##n; \
- break;
- foreach_gre_tunnel_type
-#undef _
- }
-
- return (out);
-}
-
-static void vl_api_gre_tunnel_add_del_t_handler
- (vl_api_gre_tunnel_add_del_t * mp)
-{
- vnet_gre_tunnel_add_del_args_t _a = { }, *a = &_a;
- vl_api_gre_tunnel_add_del_reply_t *rmp;
- tunnel_encap_decap_flags_t flags;
- u32 sw_if_index = ~0;
- ip46_type_t itype[2];
- int rv = 0;
-
- itype[0] = ip_address_decode (&mp->tunnel.src, &a->src);
- itype[1] = ip_address_decode (&mp->tunnel.dst, &a->dst);
-
- if (itype[0] != itype[1])
- {
- rv = VNET_API_ERROR_INVALID_PROTOCOL;
- goto out;
- }
-
- if (ip46_address_is_equal (&a->src, &a->dst))
- {
- rv = VNET_API_ERROR_SAME_SRC_DST;
- goto out;
- }
-
- rv = gre_tunnel_type_decode (mp->tunnel.type, &a->type);
-
- if (rv)
- goto out;
-
- rv = tunnel_mode_decode (mp->tunnel.mode, &a->mode);
-
- if (rv)
- goto out;
-
- rv = tunnel_encap_decap_flags_decode (mp->tunnel.flags, &flags);
-
- if (rv)
- goto out;
-
- a->is_add = mp->is_add;
- a->is_ipv6 = (itype[0] == IP46_TYPE_IP6);
- a->instance = ntohl (mp->tunnel.instance);
- a->session_id = ntohs (mp->tunnel.session_id);
- a->outer_table_id = ntohl (mp->tunnel.outer_table_id);
- a->flags = flags;
-
- rv = vnet_gre_tunnel_add_del (a, &sw_if_index);
-
-out:
- /* *INDENT-OFF* */
- REPLY_MACRO2(VL_API_GRE_TUNNEL_ADD_DEL_REPLY,
- ({
- rmp->sw_if_index = ntohl (sw_if_index);
- }));
- /* *INDENT-ON* */
-}
-
-static void send_gre_tunnel_details
- (gre_tunnel_t * t, vl_api_gre_tunnel_dump_t * mp)
-{
- vl_api_gre_tunnel_details_t *rmp;
-
- /* *INDENT-OFF* */
- REPLY_MACRO_DETAILS2(VL_API_GRE_TUNNEL_DETAILS,
- ({
- ip_address_encode (&t->tunnel_src, IP46_TYPE_ANY, &rmp->tunnel.src);
- ip_address_encode (&t->tunnel_dst.fp_addr, IP46_TYPE_ANY, &rmp->tunnel.dst);
-
- rmp->tunnel.outer_table_id =
- htonl (fib_table_get_table_id
- (t->outer_fib_index, t->tunnel_dst.fp_proto));
-
- rmp->tunnel.type = gre_tunnel_type_encode (t->type);
- rmp->tunnel.mode = tunnel_mode_encode (t->mode);
- rmp->tunnel.flags = tunnel_encap_decap_flags_encode (t->flags);
- rmp->tunnel.instance = htonl (t->user_instance);
- rmp->tunnel.sw_if_index = htonl (t->sw_if_index);
- rmp->tunnel.session_id = htons (t->session_id);
- }));
- /* *INDENT-ON* */
-}
-
-static void
-vl_api_gre_tunnel_dump_t_handler (vl_api_gre_tunnel_dump_t * mp)
-{
- vl_api_registration_t *reg;
- gre_main_t *gm = &gre_main;
- gre_tunnel_t *t;
- u32 sw_if_index;
-
- reg = vl_api_client_index_to_registration (mp->client_index);
- if (!reg)
- return;
-
- sw_if_index = ntohl (mp->sw_if_index);
-
- if (~0 == sw_if_index)
- {
- /* *INDENT-OFF* */
- pool_foreach (t, gm->tunnels)
- {
- send_gre_tunnel_details(t, mp);
- }
- /* *INDENT-ON* */
- }
-
- else
- {
- if ((sw_if_index >= vec_len (gm->tunnel_index_by_sw_if_index)) ||
- (~0 == gm->tunnel_index_by_sw_if_index[sw_if_index]))
- {
- return;
- }
- t = &gm->tunnels[gm->tunnel_index_by_sw_if_index[sw_if_index]];
- send_gre_tunnel_details (t, mp);
- }
-}
-
-/*
- * gre_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()
- */
-/* API definitions */
-#include <vnet/format_fns.h>
-#include <vnet/gre/gre.api.c>
-
-static clib_error_t *
-gre_api_hookup (vlib_main_t * vm)
-{
- /*
- * Set up the (msg_name, crc, message-id) table
- */
- gre_main.msg_id_base = setup_message_id_table ();
-
- return 0;
-}
-
-VLIB_API_INIT_FUNCTION (gre_api_hookup);
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vnet/gre/interface.c b/src/vnet/gre/interface.c
deleted file mode 100644
index bb0be865664..00000000000
--- a/src/vnet/gre/interface.c
+++ /dev/null
@@ -1,845 +0,0 @@
-/*
- * gre_interface.c: gre interfaces
- *
- * Copyright (c) 2012 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 <vnet/gre/gre.h>
-#include <vnet/ip/format.h>
-#include <vnet/fib/fib_table.h>
-#include <vnet/adj/adj_midchain.h>
-#include <vnet/adj/adj_nbr.h>
-#include <vnet/mpls/mpls.h>
-#include <vnet/l2/l2_input.h>
-#include <vnet/teib/teib.h>
-
-u8 *
-format_gre_tunnel_type (u8 * s, va_list * args)
-{
- gre_tunnel_type_t type = va_arg (*args, int);
-
- switch (type)
- {
-#define _(n, v) case GRE_TUNNEL_TYPE_##n: \
- s = format (s, "%s", v); \
- break;
- foreach_gre_tunnel_type
-#undef _
- }
-
- return (s);
-}
-
-static u8 *
-format_gre_tunnel (u8 * s, va_list * args)
-{
- gre_tunnel_t *t = va_arg (*args, gre_tunnel_t *);
-
- s = format (s, "[%d] instance %d src %U dst %U fib-idx %d sw-if-idx %d ",
- t->dev_instance, t->user_instance,
- format_ip46_address, &t->tunnel_src, IP46_TYPE_ANY,
- format_ip46_address, &t->tunnel_dst.fp_addr, IP46_TYPE_ANY,
- t->outer_fib_index, t->sw_if_index);
-
- s = format (s, "payload %U ", format_gre_tunnel_type, t->type);
- s = format (s, "%U ", format_tunnel_mode, t->mode);
-
- if (t->type == GRE_TUNNEL_TYPE_ERSPAN)
- s = format (s, "session %d ", t->session_id);
-
- if (t->type != GRE_TUNNEL_TYPE_L3)
- s = format (s, "l2-adj-idx %d ", t->l2_adj_index);
-
- return s;
-}
-
-static gre_tunnel_t *
-gre_tunnel_db_find (const vnet_gre_tunnel_add_del_args_t * a,
- u32 outer_fib_index, gre_tunnel_key_t * key)
-{
- gre_main_t *gm = &gre_main;
- uword *p;
-
- if (!a->is_ipv6)
- {
- gre_mk_key4 (a->src.ip4, a->dst.ip4, outer_fib_index,
- a->type, a->mode, a->session_id, &key->gtk_v4);
- p = hash_get_mem (gm->tunnel_by_key4, &key->gtk_v4);
- }
- else
- {
- gre_mk_key6 (&a->src.ip6, &a->dst.ip6, outer_fib_index,
- a->type, a->mode, a->session_id, &key->gtk_v6);
- p = hash_get_mem (gm->tunnel_by_key6, &key->gtk_v6);
- }
-
- if (NULL == p)
- return (NULL);
-
- return (pool_elt_at_index (gm->tunnels, p[0]));
-}
-
-static void
-gre_tunnel_db_add (gre_tunnel_t * t, gre_tunnel_key_t * key)
-{
- gre_main_t *gm = &gre_main;
-
- if (t->tunnel_dst.fp_proto == FIB_PROTOCOL_IP6)
- {
- hash_set_mem_alloc (&gm->tunnel_by_key6, &key->gtk_v6, t->dev_instance);
- }
- else
- {
- hash_set_mem_alloc (&gm->tunnel_by_key4, &key->gtk_v4, t->dev_instance);
- }
-}
-
-static void
-gre_tunnel_db_remove (gre_tunnel_t * t, gre_tunnel_key_t * key)
-{
- gre_main_t *gm = &gre_main;
-
- if (t->tunnel_dst.fp_proto == FIB_PROTOCOL_IP6)
- {
- hash_unset_mem_free (&gm->tunnel_by_key6, &key->gtk_v6);
- }
- else
- {
- hash_unset_mem_free (&gm->tunnel_by_key4, &key->gtk_v4);
- }
-}
-
-/**
- * gre_tunnel_stack
- *
- * 'stack' (resolve the recursion for) the tunnel's midchain adjacency
- */
-void
-gre_tunnel_stack (adj_index_t ai)
-{
- gre_main_t *gm = &gre_main;
- ip_adjacency_t *adj;
- gre_tunnel_t *gt;
- u32 sw_if_index;
-
- adj = adj_get (ai);
- sw_if_index = adj->rewrite_header.sw_if_index;
-
- if ((vec_len (gm->tunnel_index_by_sw_if_index) <= sw_if_index) ||
- (~0 == gm->tunnel_index_by_sw_if_index[sw_if_index]))
- return;
-
- gt = pool_elt_at_index (gm->tunnels,
- gm->tunnel_index_by_sw_if_index[sw_if_index]);
-
- if ((vnet_hw_interface_get_flags (vnet_get_main (), gt->hw_if_index) &
- VNET_HW_INTERFACE_FLAG_LINK_UP) == 0)
- {
- adj_midchain_delegate_unstack (ai);
- }
- else
- {
- adj_midchain_delegate_stack (ai, gt->outer_fib_index, &gt->tunnel_dst);
- }
-}
-
-/**
- * mgre_tunnel_stack
- *
- * 'stack' (resolve the recursion for) the tunnel's midchain adjacency
- */
-static void
-mgre_tunnel_stack (adj_index_t ai)
-{
- gre_main_t *gm = &gre_main;
- const ip_adjacency_t *adj;
- const gre_tunnel_t *gt;
- u32 sw_if_index;
-
- adj = adj_get (ai);
- sw_if_index = adj->rewrite_header.sw_if_index;
-
- if ((vec_len (gm->tunnel_index_by_sw_if_index) <= sw_if_index) ||
- (~0 == gm->tunnel_index_by_sw_if_index[sw_if_index]))
- return;
-
- gt = pool_elt_at_index (gm->tunnels,
- gm->tunnel_index_by_sw_if_index[sw_if_index]);
-
- if ((vnet_hw_interface_get_flags (vnet_get_main (), gt->hw_if_index) &
- VNET_HW_INTERFACE_FLAG_LINK_UP) == 0)
- {
- adj_midchain_delegate_unstack (ai);
- }
- else
- {
- const teib_entry_t *ne;
-
- ne = teib_entry_find_46 (sw_if_index, adj->ia_nh_proto,
- &adj->sub_type.nbr.next_hop);
- if (NULL != ne)
- teib_entry_adj_stack (ne, ai);
- }
-}
-
-/**
- * @brief Call back when restacking all adjacencies on a GRE interface
- */
-static adj_walk_rc_t
-gre_adj_walk_cb (adj_index_t ai, void *ctx)
-{
- gre_tunnel_stack (ai);
-
- return (ADJ_WALK_RC_CONTINUE);
-}
-static adj_walk_rc_t
-mgre_adj_walk_cb (adj_index_t ai, void *ctx)
-{
- mgre_tunnel_stack (ai);
-
- return (ADJ_WALK_RC_CONTINUE);
-}
-
-static void
-gre_tunnel_restack (gre_tunnel_t * gt)
-{
- fib_protocol_t proto;
-
- /*
- * walk all the adjacencies on th GRE interface and restack them
- */
- FOR_EACH_FIB_IP_PROTOCOL (proto)
- {
- switch (gt->mode)
- {
- case TUNNEL_MODE_P2P:
- adj_nbr_walk (gt->sw_if_index, proto, gre_adj_walk_cb, NULL);
- break;
- case TUNNEL_MODE_MP:
- adj_nbr_walk (gt->sw_if_index, proto, mgre_adj_walk_cb, NULL);
- break;
- }
- }
-}
-
-static void
-gre_teib_mk_key (const gre_tunnel_t * t,
- const teib_entry_t * ne, gre_tunnel_key_t * key)
-{
- const fib_prefix_t *nh;
-
- nh = teib_entry_get_nh (ne);
-
- /* construct the key using mode P2P so it can be found in the DP */
- if (FIB_PROTOCOL_IP4 == nh->fp_proto)
- gre_mk_key4 (t->tunnel_src.ip4,
- nh->fp_addr.ip4,
- teib_entry_get_fib_index (ne),
- t->type, TUNNEL_MODE_P2P, 0, &key->gtk_v4);
- else
- gre_mk_key6 (&t->tunnel_src.ip6,
- &nh->fp_addr.ip6,
- teib_entry_get_fib_index (ne),
- t->type, TUNNEL_MODE_P2P, 0, &key->gtk_v6);
-}
-
-/**
- * An TEIB entry has been added
- */
-static void
-gre_teib_entry_added (const teib_entry_t * ne)
-{
- gre_main_t *gm = &gre_main;
- const ip_address_t *nh;
- gre_tunnel_key_t key;
- gre_tunnel_t *t;
- u32 sw_if_index;
- u32 t_idx;
-
- sw_if_index = teib_entry_get_sw_if_index (ne);
- if (vec_len (gm->tunnel_index_by_sw_if_index) < sw_if_index)
- return;
-
- t_idx = gm->tunnel_index_by_sw_if_index[sw_if_index];
-
- if (INDEX_INVALID == t_idx)
- return;
-
- /* entry has been added on an interface for which there is a GRE tunnel */
- t = pool_elt_at_index (gm->tunnels, t_idx);
-
- if (t->mode != TUNNEL_MODE_MP)
- return;
-
- /* the next-hop (underlay) of the NHRP entry will form part of the key for
- * ingress lookup to match packets to this interface */
- gre_teib_mk_key (t, ne, &key);
- gre_tunnel_db_add (t, &key);
-
- /* update the rewrites for each of the adjacencies for this peer (overlay)
- * using the next-hop (underlay) */
- mgre_walk_ctx_t ctx = {
- .t = t,
- .ne = ne
- };
- nh = teib_entry_get_peer (ne);
- adj_nbr_walk_nh (teib_entry_get_sw_if_index (ne),
- (AF_IP4 == ip_addr_version (nh) ?
- FIB_PROTOCOL_IP4 :
- FIB_PROTOCOL_IP6),
- &ip_addr_46 (nh), mgre_mk_complete_walk, &ctx);
-}
-
-static void
-gre_teib_entry_deleted (const teib_entry_t * ne)
-{
- gre_main_t *gm = &gre_main;
- const ip_address_t *nh;
- gre_tunnel_key_t key;
- gre_tunnel_t *t;
- u32 sw_if_index;
- u32 t_idx;
-
- sw_if_index = teib_entry_get_sw_if_index (ne);
- if (vec_len (gm->tunnel_index_by_sw_if_index) < sw_if_index)
- return;
-
- t_idx = gm->tunnel_index_by_sw_if_index[sw_if_index];
-
- if (INDEX_INVALID == t_idx)
- return;
-
- t = pool_elt_at_index (gm->tunnels, t_idx);
-
- /* remove the next-hop as an ingress lookup key */
- gre_teib_mk_key (t, ne, &key);
- gre_tunnel_db_remove (t, &key);
-
- nh = teib_entry_get_peer (ne);
-
- /* make all the adjacencies incomplete */
- adj_nbr_walk_nh (teib_entry_get_sw_if_index (ne),
- (AF_IP4 == ip_addr_version (nh) ?
- FIB_PROTOCOL_IP4 :
- FIB_PROTOCOL_IP6),
- &ip_addr_46 (nh), mgre_mk_incomplete_walk, t);
-}
-
-static walk_rc_t
-gre_tunnel_delete_teib_walk (index_t nei, void *ctx)
-{
- gre_tunnel_t *t = ctx;
- gre_tunnel_key_t key;
-
- gre_teib_mk_key (t, teib_entry_get (nei), &key);
- gre_tunnel_db_remove (t, &key);
-
- return (WALK_CONTINUE);
-}
-
-static walk_rc_t
-gre_tunnel_add_teib_walk (index_t nei, void *ctx)
-{
- gre_tunnel_t *t = ctx;
- gre_tunnel_key_t key = {};
-
- gre_teib_mk_key (t, teib_entry_get (nei), &key);
- gre_tunnel_db_add (t, &key);
-
- return (WALK_CONTINUE);
-}
-
-static int
-vnet_gre_tunnel_add (vnet_gre_tunnel_add_del_args_t * a,
- u32 outer_fib_index, u32 * sw_if_indexp)
-{
- gre_main_t *gm = &gre_main;
- vnet_main_t *vnm = gm->vnet_main;
- gre_tunnel_t *t;
- vnet_hw_interface_t *hi;
- u32 hw_if_index, sw_if_index;
- u8 is_ipv6 = a->is_ipv6;
- gre_tunnel_key_t key;
-
- t = gre_tunnel_db_find (a, outer_fib_index, &key);
- if (NULL != t)
- return VNET_API_ERROR_IF_ALREADY_EXISTS;
-
- pool_get_aligned (gm->tunnels, t, CLIB_CACHE_LINE_BYTES);
- clib_memset (t, 0, sizeof (*t));
-
- /* Reconcile the real dev_instance and a possible requested instance */
- u32 t_idx = t - gm->tunnels; /* tunnel index (or instance) */
- u32 u_idx = a->instance; /* user specified instance */
- if (u_idx == ~0)
- u_idx = t_idx;
- if (hash_get (gm->instance_used, u_idx))
- {
- pool_put (gm->tunnels, t);
- return VNET_API_ERROR_INSTANCE_IN_USE;
- }
- hash_set (gm->instance_used, u_idx, 1);
-
- t->dev_instance = t_idx; /* actual */
- t->user_instance = u_idx; /* name */
-
- t->type = a->type;
- t->mode = a->mode;
- t->flags = a->flags;
- if (t->type == GRE_TUNNEL_TYPE_ERSPAN)
- t->session_id = a->session_id;
-
- if (t->type == GRE_TUNNEL_TYPE_L3)
- {
- if (t->mode == TUNNEL_MODE_P2P)
- hw_if_index =
- vnet_register_interface (vnm, gre_device_class.index, t_idx,
- gre_hw_interface_class.index, t_idx);
- else
- hw_if_index =
- vnet_register_interface (vnm, gre_device_class.index, t_idx,
- mgre_hw_interface_class.index, t_idx);
- }
- else
- {
- vnet_eth_interface_registration_t eir = {};
-
- /* Default MAC address (d00b:eed0:0000 + sw_if_index) */
- u8 address[6] =
- { 0xd0, 0x0b, 0xee, 0xd0, (u8) (t_idx >> 8), (u8) t_idx };
-
- eir.dev_class_index = gre_device_class.index;
- eir.dev_instance = t_idx;
- eir.address = address;
- hw_if_index = vnet_eth_register_interface (vnm, &eir);
- }
-
- /* Set GRE tunnel interface output node (not used for L3 payload) */
- if (GRE_TUNNEL_TYPE_ERSPAN == t->type)
- vnet_set_interface_output_node (vnm, hw_if_index,
- gre_erspan_encap_node.index);
- else
- vnet_set_interface_output_node (vnm, hw_if_index,
- gre_teb_encap_node.index);
-
- hi = vnet_get_hw_interface (vnm, hw_if_index);
- sw_if_index = hi->sw_if_index;
-
- t->hw_if_index = hw_if_index;
- t->outer_fib_index = outer_fib_index;
- t->sw_if_index = sw_if_index;
- t->l2_adj_index = ADJ_INDEX_INVALID;
-
- vec_validate_init_empty (gm->tunnel_index_by_sw_if_index, sw_if_index, ~0);
- gm->tunnel_index_by_sw_if_index[sw_if_index] = t_idx;
-
- if (!is_ipv6)
- {
- hi->frame_overhead = sizeof (gre_header_t) + sizeof (ip4_header_t);
- hi->min_frame_size = hi->frame_overhead + 64;
- }
- else
- {
- hi->frame_overhead = sizeof (gre_header_t) + sizeof (ip6_header_t);
- hi->min_frame_size = hi->frame_overhead + 64;
- }
-
- /* Standard default gre MTU. */
- vnet_sw_interface_set_mtu (vnm, sw_if_index, 9000);
-
- /*
- * source the FIB entry for the tunnel's destination
- * and become a child thereof. The tunnel will then get poked
- * when the forwarding for the entry updates, and the tunnel can
- * re-stack accordingly
- */
-
- clib_memcpy (&t->tunnel_src, &a->src, sizeof (t->tunnel_src));
- t->tunnel_dst.fp_len = !is_ipv6 ? 32 : 128;
- t->tunnel_dst.fp_proto = !is_ipv6 ? FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6;
- t->tunnel_dst.fp_addr = a->dst;
-
- gre_tunnel_db_add (t, &key);
-
- if (t->mode == TUNNEL_MODE_MP)
- teib_walk_itf (t->sw_if_index, gre_tunnel_add_teib_walk, t);
-
- if (t->type == GRE_TUNNEL_TYPE_ERSPAN)
- {
- gre_sn_key_t skey;
- gre_sn_t *gre_sn;
-
- gre_mk_sn_key (t, &skey);
- gre_sn = (gre_sn_t *) hash_get_mem (gm->seq_num_by_key, &skey);
- if (gre_sn != NULL)
- {
- gre_sn->ref_count++;
- t->gre_sn = gre_sn;
- }
- else
- {
- gre_sn = clib_mem_alloc (sizeof (gre_sn_t));
- gre_sn->seq_num = 0;
- gre_sn->ref_count = 1;
- t->gre_sn = gre_sn;
- hash_set_mem_alloc (&gm->seq_num_by_key, &skey, (uword) gre_sn);
- }
- }
-
- if (t->type != GRE_TUNNEL_TYPE_L3)
- {
- t->l2_adj_index = adj_nbr_add_or_lock
- (t->tunnel_dst.fp_proto, VNET_LINK_ETHERNET, &zero_addr, sw_if_index);
- vnet_set_interface_l3_output_node (gm->vlib_main, sw_if_index,
- (u8 *) "tunnel-output-no-count");
- gre_update_adj (vnm, t->sw_if_index, t->l2_adj_index);
- }
- else
- {
- vnet_set_interface_l3_output_node (gm->vlib_main, sw_if_index,
- (u8 *) "tunnel-output");
- }
- if (sw_if_indexp)
- *sw_if_indexp = sw_if_index;
-
- /* register gre46-input nodes */
- ip4_register_protocol (IP_PROTOCOL_GRE, gre4_input_node.index);
- ip6_register_protocol (IP_PROTOCOL_GRE, gre6_input_node.index);
-
- return 0;
-}
-
-static int
-vnet_gre_tunnel_delete (vnet_gre_tunnel_add_del_args_t * a,
- u32 outer_fib_index, u32 * sw_if_indexp)
-{
- gre_main_t *gm = &gre_main;
- vnet_main_t *vnm = gm->vnet_main;
- gre_tunnel_t *t;
- gre_tunnel_key_t key;
- u32 sw_if_index;
-
- t = gre_tunnel_db_find (a, outer_fib_index, &key);
- if (NULL == t)
- return VNET_API_ERROR_NO_SUCH_ENTRY;
-
- if (t->mode == TUNNEL_MODE_MP)
- teib_walk_itf (t->sw_if_index, gre_tunnel_delete_teib_walk, t);
-
- sw_if_index = t->sw_if_index;
- vnet_sw_interface_set_flags (vnm, sw_if_index, 0 /* down */ );
-
- /* make sure tunnel is removed from l2 bd or xconnect */
- set_int_l2_mode (gm->vlib_main, vnm, MODE_L3, sw_if_index, 0,
- L2_BD_PORT_TYPE_NORMAL, 0, 0);
- gm->tunnel_index_by_sw_if_index[sw_if_index] = ~0;
-
- if (t->type == GRE_TUNNEL_TYPE_L3)
- vnet_delete_hw_interface (vnm, t->hw_if_index);
- else
- ethernet_delete_interface (vnm, t->hw_if_index);
-
- if (t->l2_adj_index != ADJ_INDEX_INVALID)
- {
- adj_midchain_delegate_unstack (t->l2_adj_index);
- adj_unlock (t->l2_adj_index);
- }
-
- ASSERT ((t->type != GRE_TUNNEL_TYPE_ERSPAN) || (t->gre_sn != NULL));
- if ((t->type == GRE_TUNNEL_TYPE_ERSPAN) && (t->gre_sn->ref_count-- == 1))
- {
- gre_sn_key_t skey;
- gre_mk_sn_key (t, &skey);
- hash_unset_mem_free (&gm->seq_num_by_key, &skey);
- clib_mem_free (t->gre_sn);
- }
-
- vnet_reset_interface_l3_output_node (gm->vlib_main, sw_if_index);
- hash_unset (gm->instance_used, t->user_instance);
- gre_tunnel_db_remove (t, &key);
- pool_put (gm->tunnels, t);
-
- if (sw_if_indexp)
- *sw_if_indexp = sw_if_index;
-
- return 0;
-}
-
-int
-vnet_gre_tunnel_add_del (vnet_gre_tunnel_add_del_args_t * a,
- u32 * sw_if_indexp)
-{
- u32 outer_fib_index;
-
- outer_fib_index = fib_table_find ((a->is_ipv6 ?
- FIB_PROTOCOL_IP6 :
- FIB_PROTOCOL_IP4), a->outer_table_id);
-
- if (~0 == outer_fib_index)
- return VNET_API_ERROR_NO_SUCH_FIB;
-
- if (a->session_id > GTK_SESSION_ID_MAX)
- return VNET_API_ERROR_INVALID_SESSION_ID;
-
- if (a->mode == TUNNEL_MODE_MP && !ip46_address_is_zero (&a->dst))
- return (VNET_API_ERROR_INVALID_DST_ADDRESS);
-
- if (a->is_add)
- return (vnet_gre_tunnel_add (a, outer_fib_index, sw_if_indexp));
- else
- return (vnet_gre_tunnel_delete (a, outer_fib_index, sw_if_indexp));
-}
-
-clib_error_t *
-gre_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
-{
- gre_main_t *gm = &gre_main;
- vnet_hw_interface_t *hi;
- gre_tunnel_t *t;
- u32 ti;
-
- hi = vnet_get_hw_interface (vnm, hw_if_index);
-
- if (NULL == gm->tunnel_index_by_sw_if_index ||
- hi->sw_if_index >= vec_len (gm->tunnel_index_by_sw_if_index))
- return (NULL);
-
- ti = gm->tunnel_index_by_sw_if_index[hi->sw_if_index];
-
- if (~0 == ti)
- /* not one of ours */
- return (NULL);
-
- t = pool_elt_at_index (gm->tunnels, ti);
-
- if (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP)
- vnet_hw_interface_set_flags (vnm, hw_if_index,
- VNET_HW_INTERFACE_FLAG_LINK_UP);
- else
- vnet_hw_interface_set_flags (vnm, hw_if_index, 0 /* down */ );
-
- gre_tunnel_restack (t);
-
- return /* no error */ 0;
-}
-
-static clib_error_t *
-create_gre_tunnel_command_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
-{
- unformat_input_t _line_input, *line_input = &_line_input;
- vnet_gre_tunnel_add_del_args_t _a, *a = &_a;
- ip46_address_t src = ip46_address_initializer, dst =
- ip46_address_initializer;
- u32 instance = ~0;
- u32 outer_table_id = 0;
- gre_tunnel_type_t t_type = GRE_TUNNEL_TYPE_L3;
- tunnel_mode_t t_mode = TUNNEL_MODE_P2P;
- tunnel_encap_decap_flags_t flags = TUNNEL_ENCAP_DECAP_FLAG_NONE;
- u32 session_id = 0;
- int rv;
- u8 is_add = 1;
- u32 sw_if_index;
- 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, "del"))
- is_add = 0;
- else if (unformat (line_input, "instance %d", &instance))
- ;
- else if (unformat (line_input, "src %U", unformat_ip46_address, &src))
- ;
- else if (unformat (line_input, "dst %U", unformat_ip46_address, &dst))
- ;
- else if (unformat (line_input, "outer-table-id %d", &outer_table_id))
- ;
- else if (unformat (line_input, "multipoint"))
- t_mode = TUNNEL_MODE_MP;
- else if (unformat (line_input, "teb"))
- t_type = GRE_TUNNEL_TYPE_TEB;
- else if (unformat (line_input, "erspan %d", &session_id))
- t_type = GRE_TUNNEL_TYPE_ERSPAN;
- else
- if (unformat
- (line_input, "flags %U", unformat_tunnel_encap_decap_flags,
- &flags))
- ;
- else
- {
- error = clib_error_return (0, "unknown input `%U'",
- format_unformat_error, line_input);
- goto done;
- }
- }
-
- if (ip46_address_is_equal (&src, &dst))
- {
- error = clib_error_return (0, "src and dst are identical");
- goto done;
- }
-
- if (t_mode != TUNNEL_MODE_MP && ip46_address_is_zero (&dst))
- {
- error = clib_error_return (0, "destination address not specified");
- goto done;
- }
-
- if (ip46_address_is_zero (&src))
- {
- error = clib_error_return (0, "source address not specified");
- goto done;
- }
-
- if (ip46_address_is_ip4 (&src) != ip46_address_is_ip4 (&dst))
- {
- error =
- clib_error_return (0, "src and dst address must be the same AF");
- goto done;
- }
-
- clib_memset (a, 0, sizeof (*a));
- a->is_add = is_add;
- a->outer_table_id = outer_table_id;
- a->type = t_type;
- a->mode = t_mode;
- a->session_id = session_id;
- a->is_ipv6 = !ip46_address_is_ip4 (&src);
- a->instance = instance;
- a->flags = flags;
- clib_memcpy (&a->src, &src, sizeof (a->src));
- clib_memcpy (&a->dst, &dst, sizeof (a->dst));
-
- rv = vnet_gre_tunnel_add_del (a, &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_IF_ALREADY_EXISTS:
- error = clib_error_return (0, "GRE tunnel already exists...");
- goto done;
- case VNET_API_ERROR_NO_SUCH_FIB:
- error = clib_error_return (0, "outer table ID %d doesn't exist\n",
- outer_table_id);
- goto done;
- case VNET_API_ERROR_NO_SUCH_ENTRY:
- error = clib_error_return (0, "GRE tunnel doesn't exist");
- goto done;
- case VNET_API_ERROR_INVALID_SESSION_ID:
- error = clib_error_return (0, "session ID %d out of range\n",
- session_id);
- goto done;
- case VNET_API_ERROR_INSTANCE_IN_USE:
- error = clib_error_return (0, "Instance is in use");
- goto done;
- default:
- error =
- clib_error_return (0, "vnet_gre_tunnel_add_del returned %d", rv);
- goto done;
- }
-
-done:
- unformat_free (line_input);
-
- return error;
-}
-
-/* *INDENT-OFF* */
-VLIB_CLI_COMMAND (create_gre_tunnel_command, static) = {
- .path = "create gre tunnel",
- .short_help = "create gre tunnel src <addr> dst <addr> [instance <n>] "
- "[outer-fib-id <fib>] [teb | erspan <session-id>] [del] "
- "[multipoint]",
- .function = create_gre_tunnel_command_fn,
-};
-/* *INDENT-ON* */
-
-static clib_error_t *
-show_gre_tunnel_command_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
-{
- gre_main_t *gm = &gre_main;
- gre_tunnel_t *t;
- u32 ti = ~0;
-
- if (pool_elts (gm->tunnels) == 0)
- vlib_cli_output (vm, "No GRE tunnels configured...");
-
- while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat (input, "%d", &ti))
- ;
- else
- break;
- }
-
- if (~0 == ti)
- {
- /* *INDENT-OFF* */
- pool_foreach (t, gm->tunnels)
- {
- vlib_cli_output (vm, "%U", format_gre_tunnel, t);
- }
- /* *INDENT-ON* */
- }
- else
- {
- t = pool_elt_at_index (gm->tunnels, ti);
-
- vlib_cli_output (vm, "%U", format_gre_tunnel, t);
- }
-
- return 0;
-}
-
-/* *INDENT-OFF* */
-VLIB_CLI_COMMAND (show_gre_tunnel_command, static) = {
- .path = "show gre tunnel",
- .function = show_gre_tunnel_command_fn,
-};
-/* *INDENT-ON* */
-
-const static teib_vft_t gre_teib_vft = {
- .nv_added = gre_teib_entry_added,
- .nv_deleted = gre_teib_entry_deleted,
-};
-
-/* force inclusion from application's main.c */
-clib_error_t *
-gre_interface_init (vlib_main_t * vm)
-{
- teib_register (&gre_teib_vft);
-
- return (NULL);
-}
-
-VLIB_INIT_FUNCTION (gre_interface_init);
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vnet/gre/node.c b/src/vnet/gre/node.c
deleted file mode 100644
index fdd3118bf3c..00000000000
--- a/src/vnet/gre/node.c
+++ /dev/null
@@ -1,598 +0,0 @@
-/*
- * node.c: gre packet processing
- *
- * Copyright (c) 2012 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/gre/gre.h>
-#include <vnet/mpls/mpls.h>
-#include <vppinfra/sparse_vec.h>
-
-#define foreach_gre_input_next \
-_(PUNT, "error-punt") \
-_(DROP, "error-drop") \
-_(ETHERNET_INPUT, "ethernet-input") \
-_(IP4_INPUT, "ip4-input") \
-_(IP6_INPUT, "ip6-input") \
-_(MPLS_INPUT, "mpls-input")
-
-typedef enum
-{
-#define _(s,n) GRE_INPUT_NEXT_##s,
- foreach_gre_input_next
-#undef _
- GRE_INPUT_N_NEXT,
-} gre_input_next_t;
-
-typedef struct
-{
- u32 tunnel_id;
- u32 length;
- ip46_address_t src;
- ip46_address_t dst;
-} gre_rx_trace_t;
-
-extern u8 *format_gre_rx_trace (u8 * s, va_list * args);
-
-#ifndef CLIB_MARCH_VARIANT
-u8 *
-format_gre_rx_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 *);
- gre_rx_trace_t *t = va_arg (*args, gre_rx_trace_t *);
-
- s = format (s, "GRE: tunnel %d len %d src %U dst %U",
- t->tunnel_id, clib_net_to_host_u16 (t->length),
- format_ip46_address, &t->src, IP46_TYPE_ANY,
- format_ip46_address, &t->dst, IP46_TYPE_ANY);
- return s;
-}
-#endif /* CLIB_MARCH_VARIANT */
-
-typedef struct
-{
- /* Sparse vector mapping gre protocol in network byte order
- to next index. */
- u16 *next_by_protocol;
-} gre_input_runtime_t;
-
-always_inline void
-gre_trace (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_buffer_t * b,
- u32 tun_sw_if_index, const ip6_header_t * ip6,
- const ip4_header_t * ip4, int is_ipv6)
-{
- gre_rx_trace_t *tr = vlib_add_trace (vm, node,
- b, sizeof (*tr));
- tr->tunnel_id = tun_sw_if_index;
- if (is_ipv6)
- {
- tr->length = ip6->payload_length;
- tr->src.ip6.as_u64[0] = ip6->src_address.as_u64[0];
- tr->src.ip6.as_u64[1] = ip6->src_address.as_u64[1];
- tr->dst.ip6.as_u64[0] = ip6->dst_address.as_u64[0];
- tr->dst.ip6.as_u64[1] = ip6->dst_address.as_u64[1];
- }
- else
- {
- tr->length = ip4->length;
- tr->src.as_u64[0] = tr->src.as_u64[1] = 0;
- tr->dst.as_u64[0] = tr->dst.as_u64[1] = 0;
- tr->src.ip4.as_u32 = ip4->src_address.as_u32;
- tr->dst.ip4.as_u32 = ip4->dst_address.as_u32;
- }
-}
-
-always_inline void
-gre_tunnel_get (const gre_main_t * gm, vlib_node_runtime_t * node,
- vlib_buffer_t * b, u16 * next, const gre_tunnel_key_t * key,
- gre_tunnel_key_t * cached_key, u32 * tun_sw_if_index,
- u32 * cached_tun_sw_if_index, int is_ipv6)
-{
- const uword *p;
- p = is_ipv6 ? hash_get_mem (gm->tunnel_by_key6, &key->gtk_v6)
- : hash_get_mem (gm->tunnel_by_key4, &key->gtk_v4);
- if (PREDICT_FALSE (!p))
- {
- *next = GRE_INPUT_NEXT_DROP;
- b->error = node->errors[GRE_ERROR_NO_SUCH_TUNNEL];
- *tun_sw_if_index = ~0;
- }
- else
- {
- const gre_tunnel_t *tun;
- tun = pool_elt_at_index (gm->tunnels, *p);
- *cached_tun_sw_if_index = *tun_sw_if_index = tun->sw_if_index;
- if (is_ipv6)
- cached_key->gtk_v6 = key->gtk_v6;
- else
- cached_key->gtk_v4 = key->gtk_v4;
- }
-}
-
-always_inline uword
-gre_input (vlib_main_t * vm,
- vlib_node_runtime_t * node, vlib_frame_t * frame,
- const int is_ipv6)
-{
- gre_main_t *gm = &gre_main;
- u32 *from, n_left_from;
- vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b = bufs;
- u16 nexts[VLIB_FRAME_SIZE], *next = nexts;
- u16 cached_protocol = ~0;
- u32 cached_next_index = SPARSE_VEC_INVALID_INDEX;
- u32 cached_tun_sw_if_index = ~0;
- gre_tunnel_key_t cached_key;
-
- from = vlib_frame_vector_args (frame);
- n_left_from = frame->n_vectors;
- vlib_get_buffers (vm, from, bufs, n_left_from);
-
- if (is_ipv6)
- clib_memset (&cached_key.gtk_v6, 0xff, sizeof (cached_key.gtk_v6));
- else
- clib_memset (&cached_key.gtk_v4, 0xff, sizeof (cached_key.gtk_v4));
-
- while (n_left_from >= 2)
- {
- const ip6_header_t *ip6[2];
- const ip4_header_t *ip4[2];
- const gre_header_t *gre[2];
- u32 nidx[2];
- next_info_t ni[2];
- u8 type[2];
- u16 version[2];
- u32 len[2];
- gre_tunnel_key_t key[2];
- u8 matched[2];
- u32 tun_sw_if_index[2];
-
- if (PREDICT_TRUE (n_left_from >= 6))
- {
- vlib_prefetch_buffer_data (b[2], LOAD);
- vlib_prefetch_buffer_data (b[3], LOAD);
- vlib_prefetch_buffer_header (b[4], STORE);
- vlib_prefetch_buffer_header (b[5], STORE);
- }
-
- if (is_ipv6)
- {
- /* ip6_local hands us the ip header, not the gre header */
- ip6[0] = vlib_buffer_get_current (b[0]);
- ip6[1] = vlib_buffer_get_current (b[1]);
- gre[0] = (void *) (ip6[0] + 1);
- gre[1] = (void *) (ip6[1] + 1);
- vlib_buffer_advance (b[0], sizeof (*ip6[0]) + sizeof (*gre[0]));
- vlib_buffer_advance (b[1], sizeof (*ip6[0]) + sizeof (*gre[0]));
- }
- else
- {
- /* ip4_local hands us the ip header, not the gre header */
- ip4[0] = vlib_buffer_get_current (b[0]);
- ip4[1] = vlib_buffer_get_current (b[1]);
- gre[0] = (void *) (ip4[0] + 1);
- gre[1] = (void *) (ip4[1] + 1);
- vlib_buffer_advance (b[0], sizeof (*ip4[0]) + sizeof (*gre[0]));
- vlib_buffer_advance (b[1], sizeof (*ip4[0]) + sizeof (*gre[0]));
- }
-
- if (PREDICT_TRUE (cached_protocol == gre[0]->protocol))
- {
- nidx[0] = cached_next_index;
- }
- else
- {
- cached_next_index = nidx[0] =
- sparse_vec_index (gm->next_by_protocol, gre[0]->protocol);
- cached_protocol = gre[0]->protocol;
- }
- if (PREDICT_TRUE (cached_protocol == gre[1]->protocol))
- {
- nidx[1] = cached_next_index;
- }
- else
- {
- cached_next_index = nidx[1] =
- sparse_vec_index (gm->next_by_protocol, gre[1]->protocol);
- cached_protocol = gre[1]->protocol;
- }
-
- ni[0] = vec_elt (gm->next_by_protocol, nidx[0]);
- ni[1] = vec_elt (gm->next_by_protocol, nidx[1]);
- next[0] = ni[0].next_index;
- next[1] = ni[1].next_index;
- type[0] = ni[0].tunnel_type;
- type[1] = ni[1].tunnel_type;
-
- b[0]->error = nidx[0] == SPARSE_VEC_INVALID_INDEX
- ? node->errors[GRE_ERROR_UNKNOWN_PROTOCOL]
- : node->errors[GRE_ERROR_NONE];
- b[1]->error = nidx[1] == SPARSE_VEC_INVALID_INDEX
- ? node->errors[GRE_ERROR_UNKNOWN_PROTOCOL]
- : node->errors[GRE_ERROR_NONE];
-
- version[0] = clib_net_to_host_u16 (gre[0]->flags_and_version);
- version[1] = clib_net_to_host_u16 (gre[1]->flags_and_version);
- version[0] &= GRE_VERSION_MASK;
- version[1] &= GRE_VERSION_MASK;
-
- b[0]->error = version[0]
- ? node->errors[GRE_ERROR_UNSUPPORTED_VERSION] : b[0]->error;
- next[0] = version[0] ? GRE_INPUT_NEXT_DROP : next[0];
- b[1]->error = version[1]
- ? node->errors[GRE_ERROR_UNSUPPORTED_VERSION] : b[1]->error;
- next[1] = version[1] ? GRE_INPUT_NEXT_DROP : next[1];
-
- len[0] = vlib_buffer_length_in_chain (vm, b[0]);
- len[1] = vlib_buffer_length_in_chain (vm, b[1]);
-
- /* always search for P2P types in the DP */
- if (is_ipv6)
- {
- gre_mk_key6 (&ip6[0]->dst_address,
- &ip6[0]->src_address,
- vnet_buffer (b[0])->ip.fib_index,
- type[0], TUNNEL_MODE_P2P, 0, &key[0].gtk_v6);
- gre_mk_key6 (&ip6[1]->dst_address,
- &ip6[1]->src_address,
- vnet_buffer (b[1])->ip.fib_index,
- type[1], TUNNEL_MODE_P2P, 0, &key[1].gtk_v6);
- matched[0] = gre_match_key6 (&cached_key.gtk_v6, &key[0].gtk_v6);
- matched[1] = gre_match_key6 (&cached_key.gtk_v6, &key[1].gtk_v6);
- }
- else
- {
- gre_mk_key4 (ip4[0]->dst_address,
- ip4[0]->src_address,
- vnet_buffer (b[0])->ip.fib_index,
- type[0], TUNNEL_MODE_P2P, 0, &key[0].gtk_v4);
- gre_mk_key4 (ip4[1]->dst_address,
- ip4[1]->src_address,
- vnet_buffer (b[1])->ip.fib_index,
- type[1], TUNNEL_MODE_P2P, 0, &key[1].gtk_v4);
- matched[0] = gre_match_key4 (&cached_key.gtk_v4, &key[0].gtk_v4);
- matched[1] = gre_match_key4 (&cached_key.gtk_v4, &key[1].gtk_v4);
- }
-
- tun_sw_if_index[0] = cached_tun_sw_if_index;
- tun_sw_if_index[1] = cached_tun_sw_if_index;
- if (PREDICT_FALSE (!matched[0]))
- gre_tunnel_get (gm, node, b[0], &next[0], &key[0], &cached_key,
- &tun_sw_if_index[0], &cached_tun_sw_if_index,
- is_ipv6);
- if (PREDICT_FALSE (!matched[1]))
- gre_tunnel_get (gm, node, b[1], &next[1], &key[1], &cached_key,
- &tun_sw_if_index[1], &cached_tun_sw_if_index,
- is_ipv6);
-
- if (PREDICT_TRUE (next[0] > GRE_INPUT_NEXT_DROP))
- {
- vlib_increment_combined_counter (&gm->vnet_main->
- interface_main.combined_sw_if_counters
- [VNET_INTERFACE_COUNTER_RX],
- vm->thread_index,
- tun_sw_if_index[0],
- 1 /* packets */ ,
- len[0] /* bytes */ );
- vnet_buffer (b[0])->sw_if_index[VLIB_RX] = tun_sw_if_index[0];
- }
- if (PREDICT_TRUE (next[1] > GRE_INPUT_NEXT_DROP))
- {
- vlib_increment_combined_counter (&gm->vnet_main->
- interface_main.combined_sw_if_counters
- [VNET_INTERFACE_COUNTER_RX],
- vm->thread_index,
- tun_sw_if_index[1],
- 1 /* packets */ ,
- len[1] /* bytes */ );
- vnet_buffer (b[1])->sw_if_index[VLIB_RX] = tun_sw_if_index[1];
- }
-
- vnet_buffer (b[0])->sw_if_index[VLIB_TX] = (u32) ~0;
- vnet_buffer (b[1])->sw_if_index[VLIB_TX] = (u32) ~0;
-
- if (PREDICT_FALSE (b[0]->flags & VLIB_BUFFER_IS_TRACED))
- gre_trace (vm, node, b[0], tun_sw_if_index[0], ip6[0], ip4[0],
- is_ipv6);
- if (PREDICT_FALSE (b[1]->flags & VLIB_BUFFER_IS_TRACED))
- gre_trace (vm, node, b[1], tun_sw_if_index[1], ip6[1], ip4[1],
- is_ipv6);
-
- b += 2;
- next += 2;
- n_left_from -= 2;
- }
-
- while (n_left_from >= 1)
- {
- const ip6_header_t *ip6[1];
- const ip4_header_t *ip4[1];
- const gre_header_t *gre[1];
- u32 nidx[1];
- next_info_t ni[1];
- u8 type[1];
- u16 version[1];
- u32 len[1];
- gre_tunnel_key_t key[1];
- u8 matched[1];
- u32 tun_sw_if_index[1];
-
- if (PREDICT_TRUE (n_left_from >= 3))
- {
- vlib_prefetch_buffer_data (b[1], LOAD);
- vlib_prefetch_buffer_header (b[2], STORE);
- }
-
- if (is_ipv6)
- {
- /* ip6_local hands us the ip header, not the gre header */
- ip6[0] = vlib_buffer_get_current (b[0]);
- gre[0] = (void *) (ip6[0] + 1);
- vlib_buffer_advance (b[0], sizeof (*ip6[0]) + sizeof (*gre[0]));
- }
- else
- {
- /* ip4_local hands us the ip header, not the gre header */
- ip4[0] = vlib_buffer_get_current (b[0]);
- gre[0] = (void *) (ip4[0] + 1);
- vlib_buffer_advance (b[0], sizeof (*ip4[0]) + sizeof (*gre[0]));
- }
-
- if (PREDICT_TRUE (cached_protocol == gre[0]->protocol))
- {
- nidx[0] = cached_next_index;
- }
- else
- {
- cached_next_index = nidx[0] =
- sparse_vec_index (gm->next_by_protocol, gre[0]->protocol);
- cached_protocol = gre[0]->protocol;
- }
-
- ni[0] = vec_elt (gm->next_by_protocol, nidx[0]);
- next[0] = ni[0].next_index;
- type[0] = ni[0].tunnel_type;
-
- b[0]->error = nidx[0] == SPARSE_VEC_INVALID_INDEX
- ? node->errors[GRE_ERROR_UNKNOWN_PROTOCOL]
- : node->errors[GRE_ERROR_NONE];
-
- version[0] = clib_net_to_host_u16 (gre[0]->flags_and_version);
- version[0] &= GRE_VERSION_MASK;
-
- b[0]->error = version[0]
- ? node->errors[GRE_ERROR_UNSUPPORTED_VERSION] : b[0]->error;
- next[0] = version[0] ? GRE_INPUT_NEXT_DROP : next[0];
-
- len[0] = vlib_buffer_length_in_chain (vm, b[0]);
-
- if (is_ipv6)
- {
- gre_mk_key6 (&ip6[0]->dst_address,
- &ip6[0]->src_address,
- vnet_buffer (b[0])->ip.fib_index,
- type[0], TUNNEL_MODE_P2P, 0, &key[0].gtk_v6);
- matched[0] = gre_match_key6 (&cached_key.gtk_v6, &key[0].gtk_v6);
- }
- else
- {
- gre_mk_key4 (ip4[0]->dst_address,
- ip4[0]->src_address,
- vnet_buffer (b[0])->ip.fib_index,
- type[0], TUNNEL_MODE_P2P, 0, &key[0].gtk_v4);
- matched[0] = gre_match_key4 (&cached_key.gtk_v4, &key[0].gtk_v4);
- }
-
- tun_sw_if_index[0] = cached_tun_sw_if_index;
- if (PREDICT_FALSE (!matched[0]))
- gre_tunnel_get (gm, node, b[0], &next[0], &key[0], &cached_key,
- &tun_sw_if_index[0], &cached_tun_sw_if_index,
- is_ipv6);
-
- if (PREDICT_TRUE (next[0] > GRE_INPUT_NEXT_DROP))
- {
- vlib_increment_combined_counter (&gm->vnet_main->
- interface_main.combined_sw_if_counters
- [VNET_INTERFACE_COUNTER_RX],
- vm->thread_index,
- tun_sw_if_index[0],
- 1 /* packets */ ,
- len[0] /* bytes */ );
- vnet_buffer (b[0])->sw_if_index[VLIB_RX] = tun_sw_if_index[0];
- }
-
- vnet_buffer (b[0])->sw_if_index[VLIB_TX] = (u32) ~0;
-
- if (PREDICT_FALSE (b[0]->flags & VLIB_BUFFER_IS_TRACED))
- gre_trace (vm, node, b[0], tun_sw_if_index[0], ip6[0], ip4[0],
- is_ipv6);
-
- b += 1;
- next += 1;
- n_left_from -= 1;
- }
-
- vlib_buffer_enqueue_to_next (vm, node, from, nexts, frame->n_vectors);
-
- vlib_node_increment_counter (vm,
- is_ipv6 ? gre6_input_node.index :
- gre4_input_node.index, GRE_ERROR_PKTS_DECAP,
- n_left_from);
-
- return frame->n_vectors;
-}
-
-VLIB_NODE_FN (gre4_input_node) (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * from_frame)
-{
- return gre_input (vm, node, from_frame, /* is_ip6 */ 0);
-}
-
-VLIB_NODE_FN (gre6_input_node) (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * from_frame)
-{
- return gre_input (vm, node, from_frame, /* is_ip6 */ 1);
-}
-
-static char *gre_error_strings[] = {
-#define gre_error(n,s) s,
-#include "error.def"
-#undef gre_error
-};
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (gre4_input_node) = {
- .name = "gre4-input",
- /* Takes a vector of packets. */
- .vector_size = sizeof (u32),
-
- .n_errors = GRE_N_ERROR,
- .error_strings = gre_error_strings,
-
- .n_next_nodes = GRE_INPUT_N_NEXT,
- .next_nodes = {
-#define _(s,n) [GRE_INPUT_NEXT_##s] = n,
- foreach_gre_input_next
-#undef _
- },
-
- .format_buffer = format_gre_header_with_length,
- .format_trace = format_gre_rx_trace,
- .unformat_buffer = unformat_gre_header,
-};
-
-VLIB_REGISTER_NODE (gre6_input_node) = {
- .name = "gre6-input",
- /* Takes a vector of packets. */
- .vector_size = sizeof (u32),
-
- .runtime_data_bytes = sizeof (gre_input_runtime_t),
-
- .n_errors = GRE_N_ERROR,
- .error_strings = gre_error_strings,
-
- .n_next_nodes = GRE_INPUT_N_NEXT,
- .next_nodes = {
-#define _(s,n) [GRE_INPUT_NEXT_##s] = n,
- foreach_gre_input_next
-#undef _
- },
-
- .format_buffer = format_gre_header_with_length,
- .format_trace = format_gre_rx_trace,
- .unformat_buffer = unformat_gre_header,
-};
-/* *INDENT-ON* */
-
-#ifndef CLIB_MARCH_VARIANT
-void
-gre_register_input_protocol (vlib_main_t * vm,
- gre_protocol_t protocol, u32 node_index,
- gre_tunnel_type_t tunnel_type)
-{
- gre_main_t *em = &gre_main;
- gre_protocol_info_t *pi;
- next_info_t *n;
- u32 i;
-
- {
- clib_error_t *error = vlib_call_init_function (vm, gre_input_init);
- if (error)
- clib_error_report (error);
- }
-
- pi = gre_get_protocol_info (em, protocol);
- pi->node_index = node_index;
- pi->tunnel_type = tunnel_type;
- pi->next_index = vlib_node_add_next (vm, gre4_input_node.index, node_index);
- i = vlib_node_add_next (vm, gre6_input_node.index, node_index);
- ASSERT (i == pi->next_index);
-
- /* Setup gre protocol -> next index sparse vector mapping. */
- n = sparse_vec_validate (em->next_by_protocol,
- clib_host_to_net_u16 (protocol));
- n->next_index = pi->next_index;
- n->tunnel_type = tunnel_type;
-}
-
-static void
-gre_setup_node (vlib_main_t * vm, u32 node_index)
-{
- vlib_node_t *n = vlib_get_node (vm, node_index);
- pg_node_t *pn = pg_get_node (node_index);
-
- n->format_buffer = format_gre_header_with_length;
- n->unformat_buffer = unformat_gre_header;
- pn->unformat_edit = unformat_pg_gre_header;
-}
-
-static clib_error_t *
-gre_input_init (vlib_main_t * vm)
-{
- gre_main_t *gm = &gre_main;
- vlib_node_t *ethernet_input, *ip4_input, *ip6_input, *mpls_unicast_input;
-
- {
- clib_error_t *error;
- error = vlib_call_init_function (vm, gre_init);
- if (error)
- clib_error_report (error);
- }
-
- gre_setup_node (vm, gre4_input_node.index);
- gre_setup_node (vm, gre6_input_node.index);
-
- gm->next_by_protocol = sparse_vec_new
- ( /* elt bytes */ sizeof (gm->next_by_protocol[0]),
- /* bits in index */ BITS (((gre_header_t *) 0)->protocol));
-
- /* These could be moved to the supported protocol input node defn's */
- ethernet_input = vlib_get_node_by_name (vm, (u8 *) "ethernet-input");
- ASSERT (ethernet_input);
- ip4_input = vlib_get_node_by_name (vm, (u8 *) "ip4-input");
- ASSERT (ip4_input);
- ip6_input = vlib_get_node_by_name (vm, (u8 *) "ip6-input");
- ASSERT (ip6_input);
- mpls_unicast_input = vlib_get_node_by_name (vm, (u8 *) "mpls-input");
- ASSERT (mpls_unicast_input);
-
- gre_register_input_protocol (vm, GRE_PROTOCOL_teb,
- ethernet_input->index, GRE_TUNNEL_TYPE_TEB);
-
- gre_register_input_protocol (vm, GRE_PROTOCOL_ip4,
- ip4_input->index, GRE_TUNNEL_TYPE_L3);
-
- gre_register_input_protocol (vm, GRE_PROTOCOL_ip6,
- ip6_input->index, GRE_TUNNEL_TYPE_L3);
-
- gre_register_input_protocol (vm, GRE_PROTOCOL_mpls_unicast,
- mpls_unicast_input->index, GRE_TUNNEL_TYPE_L3);
-
- return 0;
-}
-
-VLIB_INIT_FUNCTION (gre_input_init);
-
-#endif /* CLIB_MARCH_VARIANT */
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vnet/gre/pg.c b/src/vnet/gre/pg.c
deleted file mode 100644
index 38a3a07ebad..00000000000
--- a/src/vnet/gre/pg.c
+++ /dev/null
@@ -1,86 +0,0 @@
-/*
- * hdlc_pg.c: packet generator gre interface
- *
- * Copyright (c) 2012 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/gre/gre.h>
-
-typedef struct
-{
- pg_edit_t flags_and_version;
- pg_edit_t protocol;
-} pg_gre_header_t;
-
-static inline void
-pg_gre_header_init (pg_gre_header_t * e)
-{
- pg_edit_init (&e->flags_and_version, gre_header_t, flags_and_version);
- pg_edit_init (&e->protocol, gre_header_t, protocol);
-}
-
-uword
-unformat_pg_gre_header (unformat_input_t * input, va_list * args)
-{
- pg_stream_t *s = va_arg (*args, pg_stream_t *);
- pg_gre_header_t *h;
- u32 group_index, error;
-
- h = pg_create_edit_group (s, sizeof (h[0]), sizeof (gre_header_t),
- &group_index);
- pg_gre_header_init (h);
-
- pg_edit_set_fixed (&h->flags_and_version, 0);
-
- error = 1;
- if (!unformat (input, "%U",
- unformat_pg_edit,
- unformat_gre_protocol_net_byte_order, &h->protocol))
- goto done;
-
- {
- gre_main_t *pm = &gre_main;
- gre_protocol_info_t *pi = 0;
- pg_node_t *pg_node = 0;
-
- if (h->protocol.type == PG_EDIT_FIXED)
- {
- u16 t = *(u16 *) h->protocol.values[PG_EDIT_LO];
- pi = gre_get_protocol_info (pm, clib_net_to_host_u16 (t));
- if (pi && pi->node_index != ~0)
- pg_node = pg_get_node (pi->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:
- */