diff options
Diffstat (limited to 'plugins/vcgn-plugin/vcgn/cnat_ipv4_udp_inside_input_exceptions.c')
| -rw-r--r-- | plugins/vcgn-plugin/vcgn/cnat_ipv4_udp_inside_input_exceptions.c | 283 |
1 files changed, 0 insertions, 283 deletions
diff --git a/plugins/vcgn-plugin/vcgn/cnat_ipv4_udp_inside_input_exceptions.c b/plugins/vcgn-plugin/vcgn/cnat_ipv4_udp_inside_input_exceptions.c deleted file mode 100644 index f078c8d4..00000000 --- a/plugins/vcgn-plugin/vcgn/cnat_ipv4_udp_inside_input_exceptions.c +++ /dev/null @@ -1,283 +0,0 @@ -/* - *--------------------------------------------------------------------------- - * cnat_ipv4_udp_inside_input_exception_stages.c - cnat_ipv4_udp_inside_input_exception node pipeline stage functions - * - * - * Copyright (c) 2008-2014 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 <vlib/vlib.h> -#include <vnet/vnet.h> -#include <vppinfra/error.h> -#include <vnet/buffer.h> - -#include "cnat_global.h" -#include "cnat_db.h" -#include "cnat_ipv4_udp.h" - -/* - * Dump these counters via the "show error" CLI command - */ - -#define foreach_cnat_ipv4_udp_inside_input_exc_error \ -_(CNAT_V4_UDP_I2O_T_PKT, "v4 udp i2o transmit") \ -_(CNAT_V4_UDP_I2O_D_PKT, "v4 udp i2o drop") \ -_(CNAT_V4_ICMP_G_I2O_T_PKT, "v4 udp i2o icmp msg gen") \ -_(CNAT_V4_UDP_I2O_DC_PKT, "v4 udp i2o (no config) drop") \ -_(CNAT_V4_UDP_I2O_DR_PKT, "v4 udp i2o (not in run state) drop") \ -_(CNAT_V4_UDP_I2O_DD_PKT, "v4 udp i2o (no direct port) drop") \ -_(CNAT_V4_UDP_I2O_DA_PKT, "v4 udp i2o (no any port) drop") \ -_(CNAT_V4_UDP_I2O_DO_PKT, "v4 udp i2o (out of port limit) drop") \ -_(CNAT_V4_UDP_I2O_DI_PKT, "v4 udp i2o (invalid packet) drop") \ -_(CNAT_V4_UDP_I2O_DS_PKT, "v4 udp i2o (no sessoon db) drop") - -typedef enum { -#define _(sym,str) sym, - foreach_cnat_ipv4_udp_inside_input_exc_error -#undef _ - CNAT_IPV4_UDP_INSIDE_INPUT_EXCEPTIONS_N_ERROR, -} cnat_ipv4_udp_inside_input_exc_error_t; - - -static char * cnat_ipv4_udp_inside_input_exc_error_strings[] = { -#define _(sym,string) string, - foreach_cnat_ipv4_udp_inside_input_exc_error -#undef _ -}; - -typedef struct { - u32 cached_next_index; - /* $$$$ add data here */ - - /* convenience variables */ - vlib_main_t * vlib_main; - vnet_main_t * vnet_main; -} cnat_ipv4_udp_inside_input_exc_main_t; - -typedef enum { - CNAT_V4_UDP_I2O_T, - CNAT_V4_UDP_I2O_D, - CNAT_V4_ICMP_G_I2O_T = CNAT_V4_UDP_I2O_D, /* TOBE_PORTED */ - CNAT_V4_UDP_INSIDE_INPUT_EXC_N_NEXT, -} cnat_ipv4_udp_inside_input_exc_next_t; - -cnat_ipv4_udp_inside_input_exc_main_t cnat_ipv4_udp_inside_input_exc_main; -vlib_node_registration_t cnat_ipv4_udp_inside_input_exc_node; - -#define NSTAGES 2 - -/* - * Use the generic buffer metadata + first line of packet data prefetch - * stage function from <api/pipeline.h>. This is usually a Good Idea. - */ -#define stage0 generic_stage0 - -static inline u32 last_stage (vlib_main_t *vm, vlib_node_runtime_t *node, - u32 bi) -{ - vlib_buffer_t *b0 = vlib_get_buffer (vm, bi); - vlib_node_t *n = - vlib_get_node (vm, cnat_ipv4_udp_inside_input_exc_node.index); - u32 node_counter_base_index = n->error_heap_index; - vlib_error_main_t * em = &vm->error_main; - - cnat_gen_icmp_info info; - cnat_db_key_bucket_t ki; - spp_ctx_t *ctx __attribute__((unused)) - = (spp_ctx_t *) &vnet_buffer(b0)->vcgn_uii; - cnat_main_db_entry_t *db = NULL; - ipv4_header *ip = (ipv4_header *)vlib_buffer_get_current(b0); - u8 ipv4_hdr_len = (ip->version_hdr_len_words & 0xf) << 2; - udp_hdr_type_t *udp = (udp_hdr_type_t *)((u8*)ip + ipv4_hdr_len); - int disposition = CNAT_V4_UDP_I2O_T; - int counter = CNAT_V4_UDP_I2O_T_PKT; - - cnat_key_t dest_info; - - PLATFORM_CNAT_SET_RX_VRF(vnet_buffer(b0)->sw_if_index[VLIB_RX], - vnet_buffer(b0)->vcgn_uii.key.k.vrf, - CNAT_UDP) - - vnet_buffer(b0)->vcgn_uii.key.k.ipv4 = clib_net_to_host_u32(ip->src_addr); - - PLATFORM_CNAT_SET_RX_VRF(vnet_buffer(b0)->sw_if_index[VLIB_RX], - ki.k.k.vrf, CNAT_UDP) - - ki.k.k.ipv4 = clib_net_to_host_u32(ip->src_addr); - - - /* MUST REVISIT: commentting frag check. Unconditional destination port - * update. DONOT remove this #if 0 */ - ki.k.k.port = - clib_net_to_host_u16(udp->src_port); - dest_info.k.port = - clib_net_to_host_u16(udp->dest_port); -#if 0 - if(PREDICT_FALSE(ctx->ru.rx.frag)) { -#ifdef TOBE_PORTED - /* Must have routed through cnat_v4_frag_in2out node */ - u16 *feature_data_ports = (u16 *)&ctx->feature_data[2]; - ki.k.k.port = *feature_data_ports; - feature_data_ports++; - dest_info.k.port = *feature_data_ports; -#endif - } else { - ki.k.k.port = - clib_net_to_host_u16(udp->src_port); - dest_info.k.port = - clib_net_to_host_u16(udp->dest_port); - } -#endif /* if 0 */ - - dest_info.k.ipv4 = clib_net_to_host_u32(ip->dest_addr); - PLATFORM_CNAT_SET_RX_VRF(vnet_buffer(b0)->sw_if_index[VLIB_RX], - dest_info.k.vrf, CNAT_UDP) - - if (PREDICT_TRUE(ki.k.k.port)) { - if (ki.k.k.port & 0x1) { - db = cnat_get_main_db_entry_v2(&ki, PORT_S_ODD, PORT_TYPE_DYNAMIC, - &info, &dest_info); - } else { - db = cnat_get_main_db_entry_v2(&ki, PORT_S_EVEN, PORT_TYPE_DYNAMIC, - &info, &dest_info); - } - } else { - /* - * No UDP port value of 0 - drop it - */ - db = NULL; - info.error = CNAT_ERR_BAD_TCP_UDP_PORT; - } - - if (PREDICT_TRUE((u64)db)) { - - if (PLATFORM_HANDLE_TTL_DECREMENT) { - /* - * Decrement TTL and update IPv4 checksum - */ - ipv4_decr_ttl_n_calc_csum(ip); - } - - /* - * step 6 do nat before fwd pkt - */ - swap_ip_src_udp_port(ip, udp, db); - /* - * update db for this pkt - */ - CNAT_DB_UPDATE_IN2OUT_TIMER - - /* Check timeout db if there is config for this */ - (void) query_and_update_db_timeout((void *)db, MAIN_DB_TYPE); - -/* Temporarily keeping it commented */ - //PLATFORM_CNAT_SET_TX_VRF(vnet_buffer(b0)->sw_if_index[VLIB_TX], - // db->out2in_key.k.vrf) - in2out_forwarding_count++; - - } else { - switch (info.error) { - case (CNAT_NO_VRF_RUN): - em->counters[node_counter_base_index + CNAT_V4_UDP_I2O_DR_PKT] += 1; - break; - case (CNAT_OUT_LIMIT): - em->counters[node_counter_base_index + CNAT_V4_UDP_I2O_DO_PKT] += 1; - break; - case (CNAT_NO_PORT_ANY): - case (CNAT_NO_POOL_ANY): - case (CNAT_BAD_INUSE_ANY): - case (CNAT_NOT_FOUND_ANY): - em->counters[node_counter_base_index + CNAT_V4_UDP_I2O_DA_PKT] += 1; - break; - case (CNAT_INV_PORT_DIRECT): - case (CNAT_DEL_PORT_DIRECT): - case (CNAT_BAD_INUSE_DIRECT): - case (CNAT_NOT_FOUND_DIRECT): - em->counters[node_counter_base_index + CNAT_V4_UDP_I2O_DD_PKT] += 1; - break; - case (CNAT_ERR_BAD_TCP_UDP_PORT): - em->counters[node_counter_base_index + CNAT_V4_UDP_I2O_DI_PKT] += 1; - break; - case (CNAT_ERR_NO_SESSION_DB): - em->counters[node_counter_base_index + CNAT_V4_UDP_I2O_DS_PKT] += 1; - break; - default: - em->counters[node_counter_base_index + CNAT_V4_UDP_I2O_DC_PKT] += 1; - break; - } - /* - * send to icmp msg generate node - */ - if (info.gen_icmp_msg == CNAT_ICMP_MSG) { -#ifdef TOBE_PORTED - u32 *fd = (u32*)ctx->feature_data; - fd[0] = info.svi_addr; - fd[1] = CNAT_ICMP_DEST_UNREACHABLE; -#endif - disposition = CNAT_V4_ICMP_G_I2O_T; - counter = CNAT_V4_ICMP_G_I2O_T_PKT; - } else { - disposition = CNAT_V4_UDP_I2O_D; - counter = CNAT_V4_UDP_I2O_D_PKT; - } - DEBUG_I2O_DROP(CNAT_DEBUG_DROP_UDP) - } - - em->counters[node_counter_base_index + counter] += 1; - - return disposition; -} - - -#include <vnet/pipeline.h> - -static uword cnat_ipv4_udp_inside_input_exc_node_fn (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) -{ - return dispatch_pipeline (vm, node, frame); -} - -VLIB_REGISTER_NODE (cnat_ipv4_udp_inside_input_exc_node) = { - .function = cnat_ipv4_udp_inside_input_exc_node_fn, - .name = "vcgn-v4-udp-i2o-e", - .vector_size = sizeof (u32), - .type = VLIB_NODE_TYPE_INTERNAL, - - .n_errors = ARRAY_LEN(cnat_ipv4_udp_inside_input_exc_error_strings), - .error_strings = cnat_ipv4_udp_inside_input_exc_error_strings, - - .n_next_nodes = CNAT_V4_UDP_INSIDE_INPUT_EXC_N_NEXT, - - /* edit / add dispositions here */ - .next_nodes = { - [CNAT_V4_UDP_I2O_T] = "ip4-input", - [CNAT_V4_UDP_I2O_D] = "error-drop", - }, -}; - - -clib_error_t *cnat_ipv4_udp_inside_input_exc_init (vlib_main_t *vm) -{ - cnat_ipv4_udp_inside_input_exc_main_t * mp = &cnat_ipv4_udp_inside_input_exc_main; - - mp->vlib_main = vm; - mp->vnet_main = vnet_get_main(); - - return 0; -} - -VLIB_INIT_FUNCTION (cnat_ipv4_udp_inside_input_exc_init); - |