diff options
Diffstat (limited to 'plugins/vcgn-plugin/vcgn/cnat_ipv4_icmp_query_inside_input_exception.c')
| -rw-r--r-- | plugins/vcgn-plugin/vcgn/cnat_ipv4_icmp_query_inside_input_exception.c | 235 |
1 files changed, 0 insertions, 235 deletions
diff --git a/plugins/vcgn-plugin/vcgn/cnat_ipv4_icmp_query_inside_input_exception.c b/plugins/vcgn-plugin/vcgn/cnat_ipv4_icmp_query_inside_input_exception.c deleted file mode 100644 index 9b5e280e..00000000 --- a/plugins/vcgn-plugin/vcgn/cnat_ipv4_icmp_query_inside_input_exception.c +++ /dev/null @@ -1,235 +0,0 @@ -/* - *--------------------------------------------------------------------------- - * cnat_ipv4_icmp_query_inside_input_exception.c - cnat_ipv4_icmp_query_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_ipv4_icmp.h" - -#define foreach_cnat_ipv4_icmp_q_inside_input_exc_error \ -_(CNAT_V4_ICMP_Q_I2O_E_T_PKT, "v4 icmp query i2o-e transmit") \ -_(CNAT_V4_ICMP_Q_I2O_E_G_PKT, "v4 icmp query i2o-e gen icmp msg") \ -_(CNAT_V4_ICMP_Q_I2O_E_D_PKT, "v4 icmp query i2o-e pkt drop") \ -_(CNAT_V4_ICMP_Q_I2O_E_DC_PKT, "v4 icmp query i2o-e drop (no config)") \ -_(CNAT_V4_ICMP_Q_I2O_E_DR_PKT, "v4 icmp query i2o-e drop (not in run state)") \ -_(CNAT_V4_ICMP_Q_I2O_E_DD_PKT, "v4 icmp query i2o-e drop (no direct port)") \ -_(CNAT_V4_ICMP_Q_I2O_E_DA_PKT, "v4 icmp query i2o-e drop (no any port)") \ -_(CNAT_V4_ICMP_Q_I2O_E_DO_PKT, "v4 icmp query i2o-e drop (out of port limit)") \ -_(CNAT_V4_ICMP_Q_I2O_E_DS_PKT, "v4 icmp query i2o_e drop (out of session db)") - -typedef enum { -#define _(sym,str) sym, - foreach_cnat_ipv4_icmp_q_inside_input_exc_error -#undef _ - CNAT_IPV4_ICMP_Q_INSIDE_INPUT_EXCEPTIONS_N_ERROR, -} cnat_ipv4_icmp_q_inside_input_exc_error_t; - - -static char * cnat_ipv4_icmp_q_inside_input_exc_error_strings[] = { -#define _(sym,string) string, - foreach_cnat_ipv4_icmp_q_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_icmp_q_inside_input_exc_main_t; - -typedef enum { - CNAT_V4_ICMP_Q_E_I2O_T, - //CNAT_V4_ICMP_Q_E_I2O_GEN, - CNAT_V4_ICMP_Q_E_I2O_D, - CNAT_V4_ICMP_Q_E_I2O_NEXT, -} cnat_ipv4_icmp_q_inside_input_exc_next_t; - -#define CNAT_V4_ICMP_Q_E_I2O_GEN CNAT_V4_ICMP_Q_E_I2O_T - -cnat_ipv4_icmp_q_inside_input_exc_main_t cnat_ipv4_icmp_q_inside_input_exc_main; -vlib_node_registration_t cnat_ipv4_icmp_q_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); - int disposition = CNAT_V4_ICMP_Q_E_I2O_T; - int counter = CNAT_V4_ICMP_Q_I2O_E_T_PKT; - - ipv4_header *ip = (ipv4_header *)vlib_buffer_get_current(b0); - u8 ipv4_hdr_len = (ip->version_hdr_len_words & 0xf) << 2; - icmp_v4_t *icmp = (icmp_v4_t *)((u8*)ip + ipv4_hdr_len); - vlib_node_t *n = vlib_get_node (vm, cnat_ipv4_icmp_q_inside_input_exc_node.index); - u32 node_counter_base_index = n->error_heap_index; - vlib_error_main_t * em = &vm->error_main; - - cnat_key_t dest_info; - cnat_gen_icmp_info info; - cnat_db_key_bucket_t ki; - cnat_main_db_entry_t *db = NULL; - - PLATFORM_CNAT_SET_RX_VRF(vnet_buffer(b0)->sw_if_index[VLIB_RX], - ki.k.k.vrf, CNAT_ICMP) - - ki.k.k.ipv4 = - clib_net_to_host_u32(ip->src_addr); - ki.k.k.port = - clib_net_to_host_u16(icmp->identifier); - - dest_info.k.port = 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_ICMP) - - db = cnat_get_main_db_entry_v2(&ki, PORT_SINGLE, PORT_TYPE_DYNAMIC, - &info, &dest_info); - if (PREDICT_TRUE(db != 0)) { - - if (PREDICT_FALSE(icmp_debug_flag)) { - printf("\nDUMPING ICMP PKT BEFORE\n"); - print_icmp_pkt(ip); - } - - 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_icmp_id(ip, icmp, db, db->in2out_key.k.vrf); - - if (PREDICT_FALSE(icmp_debug_flag)) { - printf("\nDUMPING ICMP PKT AFTER\n"); - print_icmp_pkt(ip); - } - - /* - * update db for this pkt - */ - CNAT_DB_UPDATE_IN2OUT_TIMER - in2out_forwarding_count++; - - } else { - switch (info.error) { - case (CNAT_NO_VRF_RUN): - counter = CNAT_V4_ICMP_Q_I2O_E_DR_PKT; - break; - case (CNAT_OUT_LIMIT): - counter = CNAT_V4_ICMP_Q_I2O_E_DO_PKT; - break; - case (CNAT_NO_PORT_ANY): - case (CNAT_NO_POOL_ANY): - case (CNAT_BAD_INUSE_ANY): - case (CNAT_NOT_FOUND_ANY): - counter = CNAT_V4_ICMP_Q_I2O_E_DA_PKT; - break; - case (CNAT_INV_PORT_DIRECT): - case (CNAT_DEL_PORT_DIRECT): - case (CNAT_BAD_INUSE_DIRECT): - case (CNAT_NOT_FOUND_DIRECT): - counter = CNAT_V4_ICMP_Q_I2O_E_DD_PKT; - break; - case (CNAT_ERR_NO_SESSION_DB): - counter = CNAT_V4_ICMP_Q_I2O_E_DS_PKT; - break; - default: - counter = CNAT_V4_ICMP_Q_I2O_E_DC_PKT; - break; - } - /* - * send to icmp msg generate node - */ - if (info.gen_icmp_msg == CNAT_ICMP_MSG) { - #if 0 - u32 *fd = (u32*)ctx->feature_data; - fd[0] = info.svi_addr; - fd[1] = CNAT_ICMP_DEST_UNREACHABLE; - #endif - disposition = CNAT_V4_ICMP_Q_E_I2O_GEN; - counter = CNAT_V4_ICMP_Q_I2O_E_G_PKT; - } else { - disposition = CNAT_V4_ICMP_Q_E_I2O_D; - counter = CNAT_V4_ICMP_Q_I2O_E_D_PKT; - } - DEBUG_I2O_DROP(CNAT_DEBUG_DROP_ICMP) - } - - em->counters[node_counter_base_index + counter] += 1; - - return disposition; -} - -#include <vnet/pipeline.h> - -static uword cnat_ipv4_icmp_q_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_icmp_q_inside_input_exc_node) = { - .function = cnat_ipv4_icmp_q_inside_input_exc_node_fn, - .name = "vcgn-v4-icmp-q-i2o-e", - .vector_size = sizeof (u32), - .type = VLIB_NODE_TYPE_INTERNAL, - - .n_errors = ARRAY_LEN(cnat_ipv4_icmp_q_inside_input_exc_error_strings), - .error_strings = cnat_ipv4_icmp_q_inside_input_exc_error_strings, - - .n_next_nodes = CNAT_V4_ICMP_Q_E_I2O_NEXT, - - /* edit / add dispositions here */ - .next_nodes = { - //[CNAT_V4_ICMP_Q_E_I2O_GEN] = "icmp_msg_gen", /* Currently it will go - //to ip4-input node. We have to port icmp msg generator node */ - [CNAT_V4_ICMP_Q_E_I2O_T] = "ip4-input", - [CNAT_V4_ICMP_Q_E_I2O_D] = "error-drop", - }, -}; - - -clib_error_t *cnat_ipv4_icmp_q_inside_input_exc_init (vlib_main_t *vm) -{ - cnat_ipv4_icmp_q_inside_input_exc_main_t * mp = &cnat_ipv4_icmp_q_inside_input_exc_main; - - mp->vlib_main = vm; - mp->vnet_main = vnet_get_main(); - - return 0; -} - -VLIB_INIT_FUNCTION (cnat_ipv4_icmp_q_inside_input_exc_init); |