From 96068d6b94207435f9c9619e2ce7921ebc812ade Mon Sep 17 00:00:00 2001 From: Ole Troan Date: Wed, 1 Jul 2020 13:16:16 +0200 Subject: nat: nat66 to plugin Type: refactor Change-Id: I8c1f0c02a4522c1f9e461ddadd59938579ec00c6 Signed-off-by: Ole Troan --- src/plugins/nat/nat66.c | 251 ------------------------------------------------ 1 file changed, 251 deletions(-) delete mode 100644 src/plugins/nat/nat66.c (limited to 'src/plugins/nat/nat66.c') diff --git a/src/plugins/nat/nat66.c b/src/plugins/nat/nat66.c deleted file mode 100644 index 3ac773c7da4..00000000000 --- a/src/plugins/nat/nat66.c +++ /dev/null @@ -1,251 +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. - */ -/** - * @file - * @brief NAT66 implementation - */ - -#include -#include -#include - -nat66_main_t nat66_main; - -/* *INDENT-OFF* */ - -/* Hook up input features */ -VNET_FEATURE_INIT (nat66_in2out, static) = { - .arc_name = "ip6-unicast", - .node_name = "nat66-in2out", - .runs_before = VNET_FEATURES ("ip6-lookup"), - .runs_after = VNET_FEATURES ("ip6-sv-reassembly-feature"), -}; -VNET_FEATURE_INIT (nat66_out2in, static) = { - .arc_name = "ip6-unicast", - .node_name = "nat66-out2in", - .runs_before = VNET_FEATURES ("ip6-lookup"), - .runs_after = VNET_FEATURES ("ip6-sv-reassembly-feature"), -}; - -/* *INDENT-ON* */ - - -void -nat66_init (vlib_main_t * vm) -{ - nat66_main_t *nm = &nat66_main; - vlib_node_t *node; - u32 static_mapping_buckets = 1024; - uword static_mapping_memory_size = 64 << 20; - - node = vlib_get_node_by_name (vm, (u8 *) "nat66-in2out"); - nm->in2out_node_index = node->index; - - node = vlib_get_node_by_name (vm, (u8 *) "nat66-out2in"); - nm->out2in_node_index = node->index; - - clib_bihash_init_24_8 (&nm->sm_l, "nat66-static-map-by-local", - static_mapping_buckets, static_mapping_memory_size); - clib_bihash_init_24_8 (&nm->sm_e, "nat66-static-map-by-external", - static_mapping_buckets, static_mapping_memory_size); - - nm->session_counters.name = "session counters"; -} - -int -nat66_interface_add_del (u32 sw_if_index, u8 is_inside, u8 is_add) -{ - nat66_main_t *nm = &nat66_main; - snat_interface_t *interface = 0, *i; - const char *feature_name; - - /* *INDENT-OFF* */ - pool_foreach (i, nm->interfaces, - ({ - if (i->sw_if_index == sw_if_index) - { - interface = i; - break; - } - })); - /* *INDENT-ON* */ - - if (is_add) - { - if (interface) - return VNET_API_ERROR_VALUE_EXIST; - - pool_get (nm->interfaces, interface); - interface->sw_if_index = sw_if_index; - interface->flags = - is_inside ? NAT_INTERFACE_FLAG_IS_INSIDE : - NAT_INTERFACE_FLAG_IS_OUTSIDE; - } - else - { - if (!interface) - return VNET_API_ERROR_NO_SUCH_ENTRY; - - pool_put (nm->interfaces, interface); - } - - feature_name = is_inside ? "nat66-in2out" : "nat66-out2in"; - int rv = ip6_sv_reass_enable_disable_with_refcnt (sw_if_index, is_add); - if (rv) - return rv; - return vnet_feature_enable_disable ("ip6-unicast", feature_name, - sw_if_index, is_add, 0, 0); -} - -void -nat66_interfaces_walk (nat66_interface_walk_fn_t fn, void *ctx) -{ - nat66_main_t *nm = &nat66_main; - snat_interface_t *i = 0; - - /* *INDENT-OFF* */ - pool_foreach (i, nm->interfaces, - ({ - if (fn (i, ctx)) - break; - })); - /* *INDENT-ON* */ -} - -nat66_static_mapping_t * -nat66_static_mapping_get (ip6_address_t * addr, u32 fib_index, u8 is_local) -{ - nat66_main_t *nm = &nat66_main; - nat66_static_mapping_t *sm = 0; - nat66_sm_key_t sm_key; - clib_bihash_kv_24_8_t kv, value; - - sm_key.addr.as_u64[0] = addr->as_u64[0]; - sm_key.addr.as_u64[1] = addr->as_u64[1]; - sm_key.fib_index = fib_index; - sm_key.rsvd = 0; - - kv.key[0] = sm_key.as_u64[0]; - kv.key[1] = sm_key.as_u64[1]; - kv.key[2] = sm_key.as_u64[2]; - - if (!clib_bihash_search_24_8 - (is_local ? &nm->sm_l : &nm->sm_e, &kv, &value)) - sm = pool_elt_at_index (nm->sm, value.value); - - return sm; -} - -int -nat66_static_mapping_add_del (ip6_address_t * l_addr, ip6_address_t * e_addr, - u32 vrf_id, u8 is_add) -{ - nat66_main_t *nm = &nat66_main; - int rv = 0; - nat66_static_mapping_t *sm = 0; - nat66_sm_key_t sm_key; - clib_bihash_kv_24_8_t kv, value; - u32 fib_index = fib_table_find (FIB_PROTOCOL_IP6, vrf_id); - - sm_key.addr.as_u64[0] = l_addr->as_u64[0]; - sm_key.addr.as_u64[1] = l_addr->as_u64[1]; - sm_key.fib_index = fib_index; - sm_key.rsvd = 0; - kv.key[0] = sm_key.as_u64[0]; - kv.key[1] = sm_key.as_u64[1]; - kv.key[2] = sm_key.as_u64[2]; - - if (!clib_bihash_search_24_8 (&nm->sm_l, &kv, &value)) - sm = pool_elt_at_index (nm->sm, value.value); - - if (is_add) - { - if (sm) - return VNET_API_ERROR_VALUE_EXIST; - - fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP6, vrf_id, - nat_fib_src_hi); - pool_get (nm->sm, sm); - clib_memset (sm, 0, sizeof (*sm)); - sm->l_addr.as_u64[0] = l_addr->as_u64[0]; - sm->l_addr.as_u64[1] = l_addr->as_u64[1]; - sm->e_addr.as_u64[0] = e_addr->as_u64[0]; - sm->e_addr.as_u64[1] = e_addr->as_u64[1]; - sm->fib_index = fib_index; - - sm_key.fib_index = fib_index; - kv.key[0] = sm_key.as_u64[0]; - kv.key[1] = sm_key.as_u64[1]; - kv.key[2] = sm_key.as_u64[2]; - kv.value = sm - nm->sm; - if (clib_bihash_add_del_24_8 (&nm->sm_l, &kv, 1)) - nat_elog_warn ("nat66-static-map-by-local add key failed"); - sm_key.addr.as_u64[0] = e_addr->as_u64[0]; - sm_key.addr.as_u64[1] = e_addr->as_u64[1]; - sm_key.fib_index = 0; - kv.key[0] = sm_key.as_u64[0]; - kv.key[1] = sm_key.as_u64[1]; - kv.key[2] = sm_key.as_u64[2]; - if (clib_bihash_add_del_24_8 (&nm->sm_e, &kv, 1)) - nat_elog_warn ("nat66-static-map-by-external add key failed"); - - vlib_validate_combined_counter (&nm->session_counters, kv.value); - vlib_zero_combined_counter (&nm->session_counters, kv.value); - } - else - { - if (!sm) - return VNET_API_ERROR_NO_SUCH_ENTRY; - - kv.value = sm - nm->sm; - if (clib_bihash_add_del_24_8 (&nm->sm_l, &kv, 0)) - nat_elog_warn ("nat66-static-map-by-local delete key failed"); - sm_key.addr.as_u64[0] = e_addr->as_u64[0]; - sm_key.addr.as_u64[1] = e_addr->as_u64[1]; - sm_key.fib_index = 0; - kv.key[0] = sm_key.as_u64[0]; - kv.key[1] = sm_key.as_u64[1]; - kv.key[2] = sm_key.as_u64[2]; - if (clib_bihash_add_del_24_8 (&nm->sm_e, &kv, 0)) - nat_elog_warn ("nat66-static-map-by-external delete key failed"); - fib_table_unlock (sm->fib_index, FIB_PROTOCOL_IP6, nat_fib_src_hi); - pool_put (nm->sm, sm); - } - - return rv; -} - -void -nat66_static_mappings_walk (nat66_static_mapping_walk_fn_t fn, void *ctx) -{ - nat66_main_t *nm = &nat66_main; - nat66_static_mapping_t *sm = 0; - - /* *INDENT-OFF* */ - pool_foreach (sm, nm->sm, - ({ - if (fn (sm, ctx)) - break; - })); - /* *INDENT-ON* */ -} - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ -- cgit 1.2.3-korg