diff options
Diffstat (limited to 'src/plugins/sixrd')
| -rw-r--r-- | src/plugins/sixrd/ip4_sixrd.c | 165 | ||||
| -rw-r--r-- | src/plugins/sixrd/sixrd.api | 44 | ||||
| -rw-r--r-- | src/plugins/sixrd/sixrd.c | 775 | ||||
| -rw-r--r-- | src/plugins/sixrd/sixrd.h | 123 | ||||
| -rw-r--r-- | src/plugins/sixrd/sixrd_all_api_h.h | 16 | ||||
| -rw-r--r-- | src/plugins/sixrd/sixrd_msg_enum.h | 28 |
6 files changed, 0 insertions, 1151 deletions
diff --git a/src/plugins/sixrd/ip4_sixrd.c b/src/plugins/sixrd/ip4_sixrd.c deleted file mode 100644 index f700f14978c..00000000000 --- a/src/plugins/sixrd/ip4_sixrd.c +++ /dev/null @@ -1,165 +0,0 @@ -/*--------------------------------------------------------------------------- - * Copyright (c) 2009-2014 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 "sixrd.h" - -vlib_node_registration_t ip4_sixrd_node; - -typedef enum { - IP4_SIXRD_NEXT_IP6_LOOKUP, - IP4_SIXRD_NEXT_DROP, - IP4_SIXRD_N_NEXT, -} ip4_sixrd_next_t; - -typedef struct { - u32 tunnel_id; - u32 length; - ip4_address_t src; - ip4_address_t dst; -} sixrd_rx_trace_t; - -u8 * -format_sixrd_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 *); - sixrd_rx_trace_t *t = va_arg (*args, sixrd_rx_trace_t *); - - s = format (s, "6RD: tunnel %d len %d src %U dst %U", - t->tunnel_id, clib_net_to_host_u16 (t->length), - format_ip4_address, &t->src, format_ip4_address, &t->dst); - return s; -} - -/* - * ip4_sixrd_sec_check - */ -static_always_inline void -ip4_sixrd_sec_check(sixrd_tunnel_t *t, ip4_address_t sa4, - ip6_address_t sa6, u8 *error) { - if (PREDICT_FALSE(sixrd_get_addr_net(t, sa6.as_u64[0]) != sa4.as_u32)) - *error = SIXRD_ERROR_SEC_CHECK; -} - -/* - * ip4_sixrd - */ -uword ip4_sixrd(vlib_main_t *vm, vlib_node_runtime_t *node, - vlib_frame_t *frame) { - u32 n_left_from, *from, next_index, *to_next, n_left_to_next; - vlib_node_runtime_t *error_node = vlib_node_get_runtime(vm, ip4_sixrd_node.index); - vnet_interface_main_t * im = &vnet_get_main()->interface_main; - u32 thread_index = vlib_get_thread_index (); - - from = vlib_frame_vector_args(frame); - n_left_from = frame->n_vectors; - next_index = node->cached_next_index; - while (n_left_from > 0) { - vlib_get_next_frame(vm, node, next_index, to_next, n_left_to_next); - - /* Single loop */ - while (n_left_from > 0 && n_left_to_next > 0) { - u32 pi0; - vlib_buffer_t *p0; - u8 error0 = SIXRD_ERROR_NONE; - sixrd_tunnel_t *t0 = 0; - ip4_header_t *ip40; - ip6_header_t *ip60; - u32 tunnel_sw_if_index = ~0; - u32 next0 = IP4_SIXRD_NEXT_DROP; - - pi0 = to_next[0] = from[0]; - from += 1; - n_left_from -= 1; - to_next += 1; - n_left_to_next -= 1; - - p0 = vlib_get_buffer(vm, pi0); - ip40 = vlib_buffer_get_current(p0); - - /* Throw away anything that isn't IP in IP. */ - if (PREDICT_TRUE(ip40->protocol == IP_PROTOCOL_IPV6 && clib_net_to_host_u16(ip40->length) >= 60)) { - vlib_buffer_advance(p0, sizeof(ip4_header_t)); - t0 = ip4_sixrd_get_tunnel(vnet_buffer(p0)->ip.adj_index[VLIB_TX], (ip4_address_t *)&ip40->dst_address, &error0); - } else { - error0 = SIXRD_ERROR_BAD_PROTOCOL; - } - - if (!t0) { - error0 = SIXRD_ERROR_NO_TUNNEL; - goto error; - } - - tunnel_sw_if_index = t0->sw_if_index; - - /* SIXRD inbound security check */ - if (t0->security_check) { - ip60 = vlib_buffer_get_current(p0); - ip4_sixrd_sec_check(t0, ip40->src_address, ip60->src_address, &error0); - } - next0 = error0 == SIXRD_ERROR_NONE ? IP4_SIXRD_NEXT_IP6_LOOKUP - : IP4_SIXRD_NEXT_DROP; - - if (PREDICT_FALSE(p0->flags & VLIB_BUFFER_IS_TRACED)) { - sixrd_rx_trace_t *tr = vlib_add_trace(vm, node, p0, sizeof(*tr)); - tr->tunnel_id = tunnel_sw_if_index; - tr->length = ip40->length; - tr->src.as_u32 = ip40->src_address.as_u32; - tr->dst.as_u32 = ip40->dst_address.as_u32; - } - - error: - if (PREDICT_TRUE(error0 == SIXRD_ERROR_NONE)) { - u32 len = vlib_buffer_length_in_chain (vm, p0); - vlib_increment_combined_counter (im->combined_sw_if_counters - + VNET_INTERFACE_COUNTER_RX, - thread_index, - tunnel_sw_if_index, - 1 /* packets */ , - len /* bytes */ ); - - vnet_buffer (p0)->sw_if_index[VLIB_RX] = tunnel_sw_if_index; - } else { - p0->error = error_node->errors[error0]; - } - vlib_validate_buffer_enqueue_x1(vm, node, next_index, to_next, - n_left_to_next, pi0, next0); - } - vlib_put_next_frame(vm, node, next_index, n_left_to_next); - } - return frame->n_vectors; -} - -static char *sixrd_error_strings[] = { -#define _(sym, string) string, - foreach_sixrd_error -#undef _ -}; - -VLIB_REGISTER_NODE(ip4_sixrd_node) = { - .function = ip4_sixrd, - .name = "ip4-sixrd", - .vector_size = sizeof(u32), - .format_trace = format_sixrd_rx_trace, - .n_errors = SIXRD_N_ERROR, - .error_strings = sixrd_error_strings, - .n_next_nodes = IP4_SIXRD_N_NEXT, - .next_nodes = - { - [IP4_SIXRD_NEXT_IP6_LOOKUP] = "ip6-lookup", - [IP4_SIXRD_NEXT_DROP] = "error-drop", - }, -}; diff --git a/src/plugins/sixrd/sixrd.api b/src/plugins/sixrd/sixrd.api deleted file mode 100644 index 7057bbb1b16..00000000000 --- a/src/plugins/sixrd/sixrd.api +++ /dev/null @@ -1,44 +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. - */ - -option version = "2.0.0"; - -define sixrd_add_tunnel -{ - u32 client_index; - u32 context; - u32 fib_index; - u8 ip6_prefix[16]; - u8 ip4_prefix[4]; - u8 ip4_src[4]; - u8 ip6_prefix_len; - u8 ip4_prefix_len; - u16 mtu; - u8 security_check; -}; - -define sixrd_add_tunnel_reply -{ - u32 context; - u32 sw_if_index; - i32 retval; -}; - -autoreply define sixrd_del_tunnel -{ - u32 client_index; - u32 context; - u32 sw_if_index; -}; diff --git a/src/plugins/sixrd/sixrd.c b/src/plugins/sixrd/sixrd.c deleted file mode 100644 index 66ad19b7811..00000000000 --- a/src/plugins/sixrd/sixrd.c +++ /dev/null @@ -1,775 +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. - */ -/** - * This code supports the following sixrd modes: - * - * 32 EA bits (Complete IPv4 address is embedded): - * ea_bits_len = 32 - * IPv4 suffix is embedded: - * ea_bits_len = < 32 - * No embedded address bits (1:1 mode): - * ea_bits_len = 0 - */ - -#include "sixrd.h" -#include <vnet/plugin/plugin.h> -#include <vlibapi/api.h> -#include <vlibmemory/api.h> -#include <vnet/adj/adj.h> -#include <vnet/fib/fib_table.h> -#include <vnet/fib/ip6_fib.h> -#include <vnet/adj/adj_midchain.h> -#include <vnet/adj/adj_delegate.h> -#include <vnet/dpo/lookup_dpo.h> -#include <vpp/app/version.h> // Really needed? - -/* define message IDs */ -#include "sixrd_msg_enum.h" - -/* define message structures */ -#define vl_typedefs -#include "sixrd_all_api_h.h" -#undef vl_typedefs - -/* define generated endian-swappers */ -#define vl_endianfun -#include "sixrd_all_api_h.h" -#undef vl_endianfun - -/* instantiate all the print functions we know about */ -#define vl_print(handle, ...) vlib_cli_output(handle, __VA_ARGS__) -#define vl_printfun -#include "sixrd_all_api_h.h" -#undef vl_printfun - -/* Get the API version number */ -#define vl_api_version(n, v) static u32 api_version = (v); -#include "sixrd_all_api_h.h" -#undef vl_api_version - -#define REPLY_MSG_ID_BASE sm->msg_id_base -#include <vlibapi/api_helper_macros.h> - -extern vlib_node_registration_t ip4_sixrd_node; - -/** - * Adj delegate data - */ -typedef struct sixrd_adj_delegate_t_ -{ - /** - * linkage to the adj - */ - u32 adj_index; - - /** - * Linnkage to the FIB node graph - */ - fib_node_t sixrd_node; - - /** - * tracking of the IPv4 next-hop - */ - fib_node_index_t sixrd_fib_entry_index; - - /** - * sibling on the fib-entry - */ - u32 sixrd_sibling; -} sixrd_adj_delegate_t; - -/** - * Pool of delegate structs - */ -static sixrd_adj_delegate_t *sixrd_adj_delegate_pool; - -/** - * Adj delegate registered type - */ -static adj_delegate_type_t sixrd_adj_delegate_type; - -/** - * FIB node registered type - */ -static fib_node_type_t sixrd_fib_node_type; - -static inline sixrd_adj_delegate_t * -sixrd_adj_from_base (adj_delegate_t * ad) -{ - if (NULL == ad) - { - return (NULL); - } - return (pool_elt_at_index (sixrd_adj_delegate_pool, ad->ad_index)); -} - -static inline const sixrd_adj_delegate_t * -sixrd_adj_from_const_base (const adj_delegate_t * ad) -{ - if (NULL == ad) - { - return (NULL); - } - return (pool_elt_at_index (sixrd_adj_delegate_pool, ad->ad_index)); -} - -sixrd_main_t sixrd_main; - -static void -sixrd_fixup (vlib_main_t * vm, - ip_adjacency_t * adj, vlib_buffer_t * b0, const void *data) -{ - ip4_header_t *ip4 = vlib_buffer_get_current (b0); - ip6_header_t *ip6 = vlib_buffer_get_current (b0) + sizeof (ip4_header_t); - const sixrd_tunnel_t *t = data; - - ip4->length = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0)); - ip4->dst_address.as_u32 = - sixrd_get_addr_net (t, ip6->dst_address.as_u64[0]); - ip4->checksum = ip4_header_checksum (ip4); -} - -static void -ip6ip_fixup (vlib_main_t * vm, - ip_adjacency_t * adj, vlib_buffer_t * b0, const void *data) -{ - const sixrd_tunnel_t *t = data; - ip4_header_t *ip4 = vlib_buffer_get_current (b0); - ip4->length = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0)); - ip4->dst_address.as_u32 = - sixrd_get_addr_net (t, adj->sub_type.nbr.next_hop.as_u64[0]); - ip4->checksum = ip4_header_checksum (ip4); -} - -static sixrd_tunnel_t * -find_tunnel_by_sw_if_index (u32 sw_if_index) -{ - sixrd_main_t *sm = &sixrd_main; - u32 ti = sm->tunnel_index_by_sw_if_index[sw_if_index]; - if (ti == ~0) - { - clib_warning ("Not our tunnel\n"); - return (0); - } - return pool_elt_at_index (sm->tunnels, ti); -} - -static sixrd_tunnel_t * -find_tunnel (ip6_address_t * ip6_prefix) -{ - sixrd_main_t *sm = &sixrd_main; - sixrd_tunnel_t *d; - - /* *INDENT-OFF* */ - pool_foreach (d, sm->tunnels, - ({ - if (!memcmp (&d->ip6_prefix, ip6_prefix, 16)) - return d; - })); - /* *INDENT-ON* */ - return 0; -} - - -static u8 * -sixrd_build_rewrite (vnet_main_t * vnm, - u32 sw_if_index, - vnet_link_t link_type, const void *dst_address) -{ - u8 *rewrite = NULL; - sixrd_tunnel_t *t; - - t = find_tunnel_by_sw_if_index (sw_if_index); - if (!t) - { - return 0; - } - - vec_validate (rewrite, sizeof (ip4_header_t) - 1); - ip4_header_t *ip4 = (ip4_header_t *) rewrite; - ip4->ip_version_and_header_length = 0x45; - ip4->ttl = 64; - ip4->protocol = IP_PROTOCOL_IPV6; - /* fixup ip4 header length and checksum after-the-fact */ - ip4->src_address.as_u32 = t->ip4_src.as_u32; - ip4->dst_address.as_u32 = 0; - ip4->checksum = ip4_header_checksum (ip4); - - return rewrite; -} - -static void -ip6ip_tunnel_stack (adj_index_t ai, u32 fib_entry_index) -{ - sixrd_main_t *sm = &sixrd_main; - ip_adjacency_t *adj = adj_get (ai); - sixrd_tunnel_t *t; - u32 sw_if_index = adj->rewrite_header.sw_if_index; - - if ((vec_len (sm->tunnel_index_by_sw_if_index) < sw_if_index) || - (~0 == sm->tunnel_index_by_sw_if_index[sw_if_index])) - return; - - t = - pool_elt_at_index (sm->tunnels, - sm->tunnel_index_by_sw_if_index[sw_if_index]); - - /* - * find the adjacency that is contributed by the FIB entry - * that this tunnel resolves via, and use it as the next adj - * in the midchain - */ - if (vnet_hw_interface_get_flags (vnet_get_main (), t->hw_if_index) & - VNET_HW_INTERFACE_FLAG_LINK_UP) - { - adj_nbr_midchain_stack (ai, - fib_entry_contribute_ip_forwarding - (fib_entry_index)); - } - else - { - adj_nbr_midchain_unstack (ai); - } -} - -static void -sixrd_tunnel_stack (adj_index_t ai, u32 fib_index) -{ - dpo_id_t dpo = DPO_INVALID; - sixrd_main_t *sm = &sixrd_main; - ip_adjacency_t *adj = adj_get (ai); - u32 sw_if_index = adj->rewrite_header.sw_if_index; - - if ((vec_len (sm->tunnel_index_by_sw_if_index) < sw_if_index) || - (~0 == sm->tunnel_index_by_sw_if_index[sw_if_index])) - return; - - if ((vec_len (sm->tunnel_index_by_sw_if_index) < sw_if_index) || - (sm->tunnel_index_by_sw_if_index[sw_if_index] == ~0)) - return; - - lookup_dpo_add_or_lock_w_fib_index (fib_index, DPO_PROTO_IP4, - LOOKUP_UNICAST, LOOKUP_INPUT_DST_ADDR, - LOOKUP_TABLE_FROM_CONFIG, &dpo); - adj_nbr_midchain_stack (ai, &dpo); -} - -const static ip46_address_t sixrd_special_nh = { - .ip6 = { - .as_u64 = { - [0] = 0xffffffffffffffff, - [1] = 0xffffffffffffffff, - }, - }, -}; - -static void -sixrd_update_adj (vnet_main_t * vnm, u32 sw_if_index, adj_index_t ai) -{ - ip_adjacency_t *adj = adj_get (ai); - sixrd_tunnel_t *t = find_tunnel_by_sw_if_index (sw_if_index); - - if (!memcmp (&sixrd_special_nh, - &adj->sub_type.nbr.next_hop, sizeof (sixrd_special_nh))) - { - adj_nbr_midchain_update_rewrite (ai, sixrd_fixup, t, ADJ_FLAG_NONE, - sixrd_build_rewrite (vnm, sw_if_index, - adj_get_link_type - (ai), NULL)); - sixrd_tunnel_stack (ai, t->fib_index); - } - else - { - sixrd_adj_delegate_t *sixrd_ad; - ip4_address_t da4; - - da4.as_u32 = - sixrd_get_addr_net (t, adj->sub_type.nbr.next_hop.as_u64[0]); - - fib_prefix_t pfx = { - .fp_proto = FIB_PROTOCOL_IP4, - .fp_len = 32, - .fp_addr = {.ip4 = da4,} - , - }; - - adj_nbr_midchain_update_rewrite - (ai, ip6ip_fixup, t, - ADJ_FLAG_NONE, - sixrd_build_rewrite (vnm, sw_if_index, - adj_get_link_type (ai), NULL)); - - sixrd_ad = - sixrd_adj_from_base (adj_delegate_get (adj, sixrd_adj_delegate_type)); - if (NULL == sixrd_ad) - { - pool_get (sixrd_adj_delegate_pool, sixrd_ad); - fib_node_init (&sixrd_ad->sixrd_node, sixrd_fib_node_type); - sixrd_ad->adj_index = ai; - sixrd_ad->sixrd_fib_entry_index = - fib_table_entry_special_add (t->fib_index, &pfx, - FIB_SOURCE_RR, FIB_ENTRY_FLAG_NONE); - sixrd_ad->sixrd_sibling = - fib_entry_child_add (sixrd_ad->sixrd_fib_entry_index, - sixrd_fib_node_type, - sixrd_ad - sixrd_adj_delegate_pool); - - adj_delegate_add (adj, - sixrd_adj_delegate_type, - sixrd_ad - sixrd_adj_delegate_pool); - - ip6ip_tunnel_stack (ai, sixrd_ad->sixrd_fib_entry_index); - } - } -} - - -clib_error_t * -sixrd_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags) -{ - /* Always up */ - vnet_hw_interface_set_flags (vnm, hw_if_index, - VNET_HW_INTERFACE_FLAG_LINK_UP); - return /* no error */ 0; -} - -/* *INDENT-OFF* */ -VNET_HW_INTERFACE_CLASS (sixrd_hw_interface_class) = -{ - .name = "ip6ip-6rd", - .build_rewrite = sixrd_build_rewrite, - .update_adjacency = sixrd_update_adj, -}; - -VNET_DEVICE_CLASS (sixrd_device_class) = -{ - .name = "ip6ip-6rd", - .admin_up_down_function = sixrd_interface_admin_up_down, -#ifdef SOON - .clear counter = 0; -#endif -}; -/* *INDENT-ON* */ - -static int -sixrd_create_tunnel (ip6_address_t * ip6_prefix, u8 ip6_prefix_len, - ip4_address_t * ip4_prefix, u8 ip4_prefix_len, - ip4_address_t * ip4_src, u16 mtu, bool security_check, - u32 fib_index, u32 * sixrd_tunnel_index) -{ - sixrd_main_t *sm = &sixrd_main; - sixrd_tunnel_t *t; - - if (fib_index == ~0) - return VNET_API_ERROR_NO_SUCH_FIB; - - if ((ip6_prefix_len + 32 - ip4_prefix_len) > 64) - return VNET_API_ERROR_INVALID_VALUE; - - /* Tunnel already configured */ - if (find_tunnel (ip6_prefix)) - return VNET_API_ERROR_INVALID_VALUE; - /* Tunnel already configured for this source */ - if (find_tunnel_by_ip4_address (ip4_src)) - return VNET_API_ERROR_INVALID_VALUE; - - /* Get tunnel index */ - pool_get_aligned (sm->tunnels, t, CLIB_CACHE_LINE_BYTES); - memset (t, 0, sizeof (*t)); - t->tunnel_index = t - sm->tunnels; - - /* Init tunnel struct */ - t->ip4_prefix.as_u32 = ip4_prefix->as_u32; - t->ip4_prefix_len = ip4_prefix_len; - t->ip6_prefix = *ip6_prefix; - t->ip6_prefix_len = ip6_prefix_len; - t->ip4_src = *ip4_src; - t->mtu = mtu ? mtu : SIXRD_DEFAULT_MTU; - t->security_check = security_check; - - t->shift = (ip4_prefix_len < 32) ? - 64 - ip6_prefix_len - (32 - ip4_prefix_len) : 0; - - /* Create interface */ - u32 hw_if_index = vnet_register_interface (vnet_get_main (), - sixrd_device_class.index, - t->tunnel_index, - sixrd_hw_interface_class.index, - t->tunnel_index); - - /* Default the interface to up and enable IPv6 (payload) */ - vnet_hw_interface_t *hi = - vnet_get_hw_interface (vnet_get_main (), hw_if_index); - t->hw_if_index = hw_if_index; - t->fib_index = fib_index; - t->sw_if_index = hi->sw_if_index; - - hi->max_l3_packet_bytes[VLIB_RX] = hi->max_l3_packet_bytes[VLIB_TX] = - t->mtu; - - vec_validate_init_empty (sm->tunnel_index_by_sw_if_index, hi->sw_if_index, - ~0); - sm->tunnel_index_by_sw_if_index[hi->sw_if_index] = t->tunnel_index; - - hash_set (sm->tunnel_by_ip, ip4_src->as_u32, t->tunnel_index); - - vnet_hw_interface_set_flags (vnet_get_main (), hw_if_index, - VNET_HW_INTERFACE_FLAG_LINK_UP); - vnet_sw_interface_set_flags (vnet_get_main (), hi->sw_if_index, - VNET_SW_INTERFACE_FLAG_ADMIN_UP); - - /* Create IPv6 route/adjacency */ - fib_prefix_t pfx6 = { - .fp_proto = FIB_PROTOCOL_IP6, - .fp_len = t->ip6_prefix_len, - .fp_addr = {.ip6 = t->ip6_prefix,} - , - }; - - fib_table_entry_update_one_path (fib_index, &pfx6, - FIB_SOURCE_CLI, FIB_ENTRY_FLAG_ATTACHED, - DPO_PROTO_IP6, &sixrd_special_nh, - hi->sw_if_index, - ~0, 1, NULL, FIB_ROUTE_PATH_FLAG_NONE); - - *sixrd_tunnel_index = hi->sw_if_index; - - ip4_register_protocol (IP_PROTOCOL_IPV6, ip4_sixrd_node.index); - - return 0; -} - -/* - * sixrd_delete_tunnel - */ -int -sixrd_delete_tunnel (u32 sw_if_index) -{ - sixrd_main_t *sm = &sixrd_main; - sixrd_tunnel_t *t = find_tunnel_by_sw_if_index (sw_if_index); - - if (!t) - { - clib_warning ("SIXRD tunnel delete: tunnel does not exist: %d", - sw_if_index); - return -1; - } - - fib_prefix_t pfx6 = { - .fp_proto = FIB_PROTOCOL_IP6, - .fp_len = t->ip6_prefix_len, - .fp_addr = {.ip6 = t->ip6_prefix,} - , - }; - fib_table_entry_special_remove (0, &pfx6, FIB_SOURCE_CLI); - vnet_sw_interface_set_flags (vnet_get_main (), t->sw_if_index, - 0 /* down */ ); - - sm->tunnel_index_by_sw_if_index[t->sw_if_index] = ~0; - - hash_unset (sm->tunnel_by_ip, t->ip4_src.as_u32); - - vnet_delete_hw_interface (vnet_get_main (), t->hw_if_index); - - pool_put (sm->tunnels, t); - - return 0; -} - -static clib_error_t * -sixrd_add_del_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; - ip4_address_t ip4_prefix; - ip6_address_t ip6_prefix; - ip4_address_t ip4_src; - u32 ip6_prefix_len = 0, ip4_prefix_len = 0, sixrd_tunnel_index; - u32 num_m_args = 0; - /* Optional arguments */ - u32 mtu = 0; - u32 fib_index = 0; - clib_error_t *error = 0; - bool is_add = true, security_check = false; - - /* 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 = false; - if (unformat (line_input, "security-check")) - security_check = true; - else - if (unformat - (line_input, "ip6-pfx %U/%d", unformat_ip6_address, &ip6_prefix, - &ip6_prefix_len)) - num_m_args++; - else if (unformat (line_input, "ip4-pfx %U/%d", unformat_ip4_address, - &ip4_prefix, &ip4_prefix_len)) - num_m_args++; - else - if (unformat - (line_input, "ip4-src %U", unformat_ip4_address, &ip4_src)) - num_m_args++; - else if (unformat (line_input, "mtu %d", &mtu)) - num_m_args++; - else if (unformat (line_input, "fib-id %d", &fib_index)) - ; - else - { - error = - clib_error_return (0, "unknown input `%U'", format_unformat_error, - line_input); - goto done; - } - } - - if (num_m_args < 3) - { - error = clib_error_return (0, "mandatory argument(s) missing"); - goto done; - } - if (is_add) - { - int rv = sixrd_create_tunnel (&ip6_prefix, ip6_prefix_len, &ip4_prefix, - ip4_prefix_len, &ip4_src, mtu, - security_check, - fib_index, &sixrd_tunnel_index); - if (rv) - error = clib_error_return (0, "adding tunnel failed"); - } - else - { - sixrd_tunnel_t *t = find_tunnel (&ip6_prefix); - if (t) - { - sixrd_delete_tunnel (t->sw_if_index); - } - } - -done: - unformat_free (line_input); - - return error; -} - -/* *INDENT-OFF* */ -VLIB_CLI_COMMAND (sixrd_add_del_tunnel_command, static) = -{ - .path = "create 6rd tunnel", - .short_help = "create 6rd tunnel ip6-pfx <ip6-pfx> ip4-pfx <ip4-pfx> " - "ip4-src <ip4-addr> [del]", - .function = sixrd_add_del_tunnel_command_fn, -}; -/* *INDENT-ON* */ - -static void -vl_api_sixrd_add_tunnel_t_handler (vl_api_sixrd_add_tunnel_t * mp) -{ - sixrd_main_t *sm = &sixrd_main; - vl_api_sixrd_add_tunnel_reply_t *rmp; - u32 sixrd_tunnel_index; - - int rv = sixrd_create_tunnel ((ip6_address_t *) & mp->ip6_prefix, - mp->ip6_prefix_len, - (ip4_address_t *) & mp->ip4_prefix, - mp->ip4_prefix_len, - (ip4_address_t *) & mp->ip4_src, - ntohs (mp->mtu), - mp->security_check, ntohl (mp->fib_index), - &sixrd_tunnel_index); - - REPLY_MACRO2 (VL_API_SIXRD_ADD_TUNNEL_REPLY, ( - { - rmp->sw_if_index = - htonl (sixrd_tunnel_index); - })); -} - -static void -vl_api_sixrd_del_tunnel_t_handler (vl_api_sixrd_del_tunnel_t * mp) -{ - sixrd_main_t *sm = &sixrd_main; - vl_api_sixrd_del_tunnel_reply_t *rmp; - - int rv = sixrd_delete_tunnel (ntohl (mp->sw_if_index)); - - REPLY_MACRO (VL_API_SIXRD_DEL_TUNNEL_REPLY); -} - -/* List of message types that this plugin understands */ - -#define foreach_sixrd_plugin_api_msg \ -_(SIXRD_ADD_TUNNEL, sixrd_add_tunnel) \ -_(SIXRD_DEL_TUNNEL, sixrd_del_tunnel) - -/* *INDENT-OFF* */ -VLIB_PLUGIN_REGISTER() = { - .version = VPP_BUILD_VER, - .description = "IPv6 Rapid Deployment on IPv4 Infrastructure (RFC5969)", -}; -/* *INDENT-ON* */ - -/** - * @brief Set up the API message handling tables. - */ -static clib_error_t * -sixrd_plugin_api_hookup (vlib_main_t * vm) -{ - sixrd_main_t *sm = &sixrd_main; - -#define _(N, n) \ - vl_msg_api_set_handlers((VL_API_##N + sm->msg_id_base), #n, \ - vl_api_##n##_t_handler, vl_noop_handler, \ - vl_api_##n##_t_endian, vl_api_##n##_t_print, \ - sizeof(vl_api_##n##_t), 1); - foreach_sixrd_plugin_api_msg; -#undef _ - - return 0; -} - -#define vl_msg_name_crc_list -#include "sixrd_all_api_h.h" -#undef vl_msg_name_crc_list - -static void -setup_message_id_table (sixrd_main_t * sm, api_main_t * am) -{ -#define _(id, n, crc) \ - vl_msg_api_add_msg_name_crc(am, #n "_" #crc, id + sm->msg_id_base); - foreach_vl_msg_name_crc_sixrd; -#undef _ -} - -static void -sixrd_adj_delegate_adj_deleted (adj_delegate_t * aed) -{ - sixrd_adj_delegate_t *sixrd_ad; - - sixrd_ad = sixrd_adj_from_base (aed); - - fib_entry_child_remove (sixrd_ad->sixrd_fib_entry_index, - sixrd_ad->sixrd_sibling); - fib_table_entry_delete_index (sixrd_ad->sixrd_fib_entry_index, - FIB_SOURCE_RR); - - pool_put (sixrd_adj_delegate_pool, sixrd_ad); -} - -static u8 * -sixrd_adj_delegate_format (const adj_delegate_t * aed, u8 * s) -{ - const sixrd_adj_delegate_t *sixrd_ad; - - sixrd_ad = sixrd_adj_from_const_base (aed); - - s = format (s, "SIXRD:[fib-entry:%d]", sixrd_ad->sixrd_fib_entry_index); - - return (s); -} - -static void -sixrd_fib_node_last_lock_gone (fib_node_t * node) -{ - // top of the dependency tree, locks not managed here. -} - -static sixrd_adj_delegate_t * -sixrd_adj_delegate_from_fib_node (fib_node_t * node) -{ - return ((sixrd_adj_delegate_t *) (((char *) node) - - STRUCT_OFFSET_OF (sixrd_adj_delegate_t, - sixrd_node))); -} - -static fib_node_back_walk_rc_t -sixrd_fib_node_back_walk_notify (fib_node_t * node, - fib_node_back_walk_ctx_t * ctx) -{ - sixrd_adj_delegate_t *sixrd_ad; - - sixrd_ad = sixrd_adj_delegate_from_fib_node (node); - - ip6ip_tunnel_stack (sixrd_ad->adj_index, sixrd_ad->sixrd_fib_entry_index); - - return (FIB_NODE_BACK_WALK_CONTINUE); -} - -/** - * Function definition to get a FIB node from its index - */ -static fib_node_t * -sixrd_fib_node_get (fib_node_index_t index) -{ - sixrd_adj_delegate_t *sixrd_ad; - - sixrd_ad = pool_elt_at_index (sixrd_adj_delegate_pool, index); - - return (&sixrd_ad->sixrd_node); -} - -/** - * VFT registered with the adjacency delegate - */ -const static adj_delegate_vft_t sixrd_adj_delegate_vft = { - .adv_adj_deleted = sixrd_adj_delegate_adj_deleted, - .adv_format = sixrd_adj_delegate_format, -}; - -/** - * VFT registered with the FIB node for the adj delegate - */ -const static fib_node_vft_t sixrd_fib_node_vft = { - .fnv_get = sixrd_fib_node_get, - .fnv_last_lock = sixrd_fib_node_last_lock_gone, - .fnv_back_walk = sixrd_fib_node_back_walk_notify, -}; - -static clib_error_t * -sixrd_init (vlib_main_t * vm) -{ - sixrd_main_t *sm = &sixrd_main; - clib_error_t *error = 0; - u8 *name; - - name = format (0, "sixrd_%08x%c", api_version, 0); - - sm->msg_id_base = - vl_msg_api_get_msg_ids ((char *) name, VL_MSG_FIRST_AVAILABLE); - vec_free (name); - error = sixrd_plugin_api_hookup (vm); - - setup_message_id_table (sm, &api_main); - - sixrd_adj_delegate_type = - adj_delegate_register_new_type (&sixrd_adj_delegate_vft); - sixrd_fib_node_type = fib_node_register_new_type (&sixrd_fib_node_vft); - - return error; -} - -VLIB_INIT_FUNCTION (sixrd_init); - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ diff --git a/src/plugins/sixrd/sixrd.h b/src/plugins/sixrd/sixrd.h deleted file mode 100644 index f443c039a13..00000000000 --- a/src/plugins/sixrd/sixrd.h +++ /dev/null @@ -1,123 +0,0 @@ -/*--------------------------------------------------------------------------- - * Copyright (c) 2009-2014 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 <stdbool.h> -#include <vnet/fib/ip6_fib.h> -#include <vnet/ip/ip.h> -#include <vnet/vnet.h> -#include <vppinfra/error.h> - -#define SIXRD_DEFAULT_MTU 1480 /* 1500 - IPv4 header */ - -typedef struct -{ - u32 fib_index; - u32 hw_if_index; - u32 sw_if_index; - u32 tunnel_index; - ip6_address_t ip6_prefix; - ip4_address_t ip4_prefix; - ip4_address_t ip4_src; - u8 ip6_prefix_len; - u8 ip4_prefix_len; - - /* helpers */ - u8 shift; - - u16 mtu; - bool security_check; -} sixrd_tunnel_t; - -typedef struct -{ - u16 msg_id_base; - - /* pool of SIXRD domains */ - sixrd_tunnel_t *tunnels; - u32 *tunnel_index_by_sw_if_index; - uword *tunnel_by_ip; - -} sixrd_main_t; - -#define foreach_sixrd_error \ - /* Must be first. */ \ - _(NONE, "valid SIXRD packets") \ - _(BAD_PROTOCOL, "bad protocol") \ - _(SEC_CHECK, "security check failed") \ - _(NO_TUNNEL, "no tunnel") - - -typedef enum -{ -#define _(sym, str) SIXRD_ERROR_##sym, - foreach_sixrd_error -#undef _ - SIXRD_N_ERROR, -} sixrd_error_t; - -extern sixrd_main_t sixrd_main; - -/* - * sixrd_get_addr - */ -static_always_inline u32 -sixrd_get_addr_net (const sixrd_tunnel_t * t, u64 dal) -{ - /* 1:1 mode */ - if (t->ip4_prefix_len == 32) - return (t->ip4_prefix.as_u32); - - dal = clib_net_to_host_u64 (dal); - - /* Grab 32 - ip4_prefix_len bits out of IPv6 address from offset - * ip6_prefix_len */ - u32 mask = ~(~0ULL << (32 - t->ip4_prefix_len)); - u32 ip4 = - clib_net_to_host_u32 (t-> - ip4_prefix.as_u32) | ((u32) (dal >> t-> - shift) & mask); - return clib_host_to_net_u32 (ip4); -} - -static_always_inline sixrd_tunnel_t * -find_tunnel_by_ip4_address (ip4_address_t * ip) -{ - sixrd_main_t *sm = &sixrd_main; - uword *p; - p = hash_get (sm->tunnel_by_ip, ip->as_u32); - if (!p) - return NULL; - return pool_elt_at_index (sm->tunnels, p[0]); -} - -static_always_inline sixrd_tunnel_t * -ip4_sixrd_get_tunnel (u32 sdi, ip4_address_t * addr, u8 * error) -{ - sixrd_tunnel_t *t = find_tunnel_by_ip4_address (addr); - if (!t) - { - *error = SIXRD_ERROR_NO_TUNNEL; - return NULL; - } - return t; -} - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ diff --git a/src/plugins/sixrd/sixrd_all_api_h.h b/src/plugins/sixrd/sixrd_all_api_h.h deleted file mode 100644 index 21111c28b95..00000000000 --- a/src/plugins/sixrd/sixrd_all_api_h.h +++ /dev/null @@ -1,16 +0,0 @@ -/* - * 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 the generated file, see BUILT_SOURCES in Makefile.am */ -#include <sixrd/sixrd.api.h> diff --git a/src/plugins/sixrd/sixrd_msg_enum.h b/src/plugins/sixrd/sixrd_msg_enum.h deleted file mode 100644 index 46528c198b3..00000000000 --- a/src/plugins/sixrd/sixrd_msg_enum.h +++ /dev/null @@ -1,28 +0,0 @@ -/* - * 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. - */ -#ifndef included_sixrd_msg_enum_h -#define included_sixrd_msg_enum_h - -#include <vppinfra/byte_order.h> - -#define vl_msg_id(n,h) n, -typedef enum { -#include <sixrd/sixrd_all_api_h.h> - /* We'll want to know how many messages IDs we need... */ - VL_MSG_FIRST_AVAILABLE, -} vl_msg_id_t; -#undef vl_msg_id - -#endif |