diff options
Diffstat (limited to 'hicn-plugin/src/network/udp_tunnels/udp_tunnel.c')
| -rw-r--r-- | hicn-plugin/src/network/udp_tunnels/udp_tunnel.c | 281 |
1 files changed, 0 insertions, 281 deletions
diff --git a/hicn-plugin/src/network/udp_tunnels/udp_tunnel.c b/hicn-plugin/src/network/udp_tunnels/udp_tunnel.c deleted file mode 100644 index 872e4cd82..000000000 --- a/hicn-plugin/src/network/udp_tunnels/udp_tunnel.c +++ /dev/null @@ -1,281 +0,0 @@ -/* - * Copyright (c) 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. - */ -#include <vlib/vlib.h> -#include <vnet/vnet.h> -#include <vppinfra/bihash_40_8.h> -#include <vnet/fib/fib_table.h> - -#include "../error.h" -#include "../strategy_dpo_ctx.h" -#include "udp_tunnel.h" - -clib_bihash_40_8_t udp_tunnels_hashtb; -dpo_type_t dpo_type_udp_ip4; -dpo_type_t dpo_type_udp_ip6; - -u32 udp_tunnel_add (fib_protocol_t proto, - index_t fib_index, - const ip46_address_t * src_ip, - const ip46_address_t * dst_ip, - u16 src_port, - u16 dst_port, - udp_encap_fixup_flags_t flags) -{ - vlib_main_t *vm = vlib_get_main(); - clib_bihash_kv_40_8_t kv; - clib_memcpy(&kv.key[0], src_ip, sizeof(ip46_address_t)); - clib_memcpy(&kv.key[2], dst_ip, sizeof(ip46_address_t)); - kv.key[4] = (clib_host_to_net_u16(src_port) << 16) + clib_host_to_net_u16(dst_port); - - clib_bihash_kv_40_8_t value; - int rv = clib_bihash_search_40_8 (&udp_tunnels_hashtb, &kv, &value); - - if (rv != 0) - { - u32 uei = udp_encap_add_and_lock(proto, fib_index, src_ip, dst_ip, src_port, dst_port, flags); - kv.value = uei; - clib_bihash_add_del_40_8(&udp_tunnels_hashtb, &kv, 1); - value.value = kv.value; - if (proto == FIB_PROTOCOL_IP4) - { - udp_register_dst_port(vm, src_port, udp4_decap_node.index, 1); - } - else - { - udp_register_dst_port(vm, src_port, udp6_decap_node.index, 0); - } - } - - return value.value; -} - -void udp_tunnel_add_existing (index_t uei, dpo_proto_t proto) -{ - vlib_main_t *vm = vlib_get_main(); - udp_encap_t * udp_encap = udp_encap_get(uei); - clib_bihash_kv_40_8_t kv; - - ip46_address_t src = {0}; - ip46_address_t dst = {0}; - u16 src_port = 0, dst_port = 0; - - switch (proto) - { - case DPO_PROTO_IP4: - ip46_address_set_ip4(&src, &(udp_encap->ue_hdrs.ip4.ue_ip4.src_address)); - ip46_address_set_ip4(&dst, &(udp_encap->ue_hdrs.ip4.ue_ip4.dst_address)); - src_port = udp_encap->ue_hdrs.ip4.ue_udp.src_port; - dst_port = udp_encap->ue_hdrs.ip4.ue_udp.dst_port; - break; - case DPO_PROTO_IP6: - ip46_address_set_ip6(&src, &(udp_encap->ue_hdrs.ip6.ue_ip6.src_address)); - ip46_address_set_ip6(&dst, &(udp_encap->ue_hdrs.ip6.ue_ip6.dst_address)); - src_port = udp_encap->ue_hdrs.ip6.ue_udp.src_port; - dst_port = udp_encap->ue_hdrs.ip6.ue_udp.dst_port; - break; - default: - break; - } - - clib_memcpy(&kv.key[0], &src, sizeof(ip46_address_t)); - clib_memcpy(&kv.key[2], &dst, sizeof(ip46_address_t)); - kv.key[4] = (src_port << 16) + dst_port ; - kv.value = uei; - - clib_bihash_add_del_40_8(&udp_tunnels_hashtb, &kv, 1); - - if (proto == DPO_PROTO_IP4) - { - udp_register_dst_port(vm, clib_net_to_host_u16(src_port), udp4_decap_node.index, 1); - } - else - { - udp_register_dst_port(vm, clib_net_to_host_u16(src_port), udp6_decap_node.index, 0); - } -} - -int udp_tunnel_del (fib_protocol_t proto, - index_t fib_index, - const ip46_address_t * src_ip, - const ip46_address_t * dst_ip, - u16 src_port, - u16 dst_port, - udp_encap_fixup_flags_t flags) -{ - clib_bihash_kv_40_8_t kv; - clib_memcpy(&kv.key[0], src_ip, sizeof(ip46_address_t)); - clib_memcpy(&kv.key[2], dst_ip, sizeof(ip46_address_t)); - kv.key[4] = (clib_host_to_net_u16(src_port) << 16) + clib_host_to_net_u16(dst_port); - - clib_bihash_kv_40_8_t value; - int ret = clib_bihash_search_40_8 (&udp_tunnels_hashtb, &kv, &value); - - if (ret == 0) - { - udp_encap_unlock((u32)value.value); - clib_bihash_add_del_40_8(&udp_tunnels_hashtb, &kv, 0); - ret = HICN_ERROR_NONE; - } - else - { - ret = HICN_ERROR_UDP_TUNNEL_NOT_FOUND; - } - - return ret; -} - -u32 udp_tunnel_get(const ip46_address_t * src_ip, - const ip46_address_t * dst_ip, - u16 src_port, - u16 dst_port) -{ - clib_bihash_kv_40_8_t kv; - clib_memcpy(&kv.key[0], src_ip, sizeof(ip46_address_t)); - clib_memcpy(&kv.key[2], dst_ip, sizeof(ip46_address_t)); - kv.key[4] = (src_port << 16) + dst_port; - - clib_bihash_kv_40_8_t value; - int ret = clib_bihash_search_40_8 (&udp_tunnels_hashtb, &kv, &value); - - return ret == 0 ? (u32)value.value : UDP_TUNNEL_INVALID; -} - - -void udp_tunnel_init() -{ - clib_bihash_init_40_8(&udp_tunnels_hashtb, "udp encap table", - 2048, 256 << 20); - - /* - * Udp encap does not expose the dpo type when it registers. - * In the following we understand what is the dpo type for a udp_encap dpo. - */ - ip46_address_t src = {0}; - ip46_address_t dst = {0}; - - src.ip6.as_u8[15] = 1; - dst.ip6.as_u8[15] = 2; - - u32 fib_index = fib_table_find (FIB_PROTOCOL_IP6, HICN_FIB_TABLE); - u32 uei = udp_encap_add_and_lock(FIB_PROTOCOL_IP6, fib_index, &src, &dst, 4444, 4444, UDP_ENCAP_FIXUP_NONE); - - dpo_id_t temp = DPO_INVALID; - udp_encap_contribute_forwarding(uei, DPO_PROTO_IP6, &temp); - dpo_type_udp_ip6 = temp.dpoi_type; - udp_encap_unlock(uei); - - dpo_id_t temp2 = DPO_INVALID; - fib_index = fib_table_find (FIB_PROTOCOL_IP4, HICN_FIB_TABLE); - uei = udp_encap_add_and_lock(FIB_PROTOCOL_IP4, fib_index, &src, &dst, 4444, 4444, UDP_ENCAP_FIXUP_NONE); - udp_encap_contribute_forwarding(uei, DPO_PROTO_IP4, &temp2); - dpo_type_udp_ip4 = temp2.dpoi_type; - udp_encap_unlock(uei); -} - -static clib_error_t * -udp_tunnel_command_fn (vlib_main_t * vm, - unformat_input_t * main_input, - vlib_cli_command_t * cmd) -{ - unformat_input_t _line_input, *line_input = &_line_input; - clib_error_t *error = NULL; - ip46_address_t src_ip = {0}, dst_ip = {0}; - u32 table_id, src_port, dst_port; - fib_protocol_t fproto; - u8 is_del; - index_t uei; - - is_del = 0; - fproto = FIB_PROTOCOL_MAX; - uei = ~0; - table_id = HICN_FIB_TABLE; - - /* Get a line of input. */ - if (unformat_user (main_input, unformat_line_input, line_input)) - { - while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) - { - if (unformat (line_input, "index %d", &uei)) - ; - else if (unformat (line_input, "add")) - is_del = 0; - else if (unformat (line_input, "del")) - is_del = 1; - else if (unformat (line_input, "%U %U", - unformat_ip4_address, - &src_ip.ip4, unformat_ip4_address, &dst_ip.ip4)) - fproto = FIB_PROTOCOL_IP4; - else if (unformat (line_input, "%U %U", - unformat_ip6_address, - &src_ip.ip6, unformat_ip6_address, &dst_ip.ip6)) - fproto = FIB_PROTOCOL_IP6; - else if (unformat (line_input, "%d %d", &src_port, &dst_port)) - ; - else if (unformat (line_input, "table-id %d", &table_id)) - ; - else - { - error = unformat_parse_error (line_input); - goto done; - } - } - } - - index_t fib_index = fib_table_find (fproto, table_id); - if (~0 == fib_index) - { - error = clib_error_return (0, "Nonexistent table id %d", table_id); - goto done; - } - - if (!is_del && fproto != FIB_PROTOCOL_MAX) - { - uei = udp_tunnel_add(fproto, fib_index, &src_ip, &dst_ip, src_port, dst_port, UDP_ENCAP_FIXUP_NONE); - - vlib_cli_output (vm, "udp-encap: %d\n", uei); - } - else if (is_del) - { - int ret = udp_tunnel_del(fproto, fib_index, &src_ip, &dst_ip, src_port, dst_port, UDP_ENCAP_FIXUP_NONE); - error = (ret == HICN_ERROR_NONE) ? 0 : clib_error_return (0, "%s\n", - get_error_string - (ret)); - } - else - { - error = clib_error_return (0, "specify some IP addresses"); - } - - done: - unformat_free (line_input); - return error; - -} - -/* *INDENT-OFF* */ -VLIB_CLI_COMMAND (udp_tunnel_command, static) = - { - .path = "udp tunnel", - .short_help = "udp tunnel [add/del] src_address dst_address src_port dst_port", - .function = udp_tunnel_command_fn, - }; -/* *INDENT-ON* */ - - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: eval: (c-set-style "gnu") End: - */ |