/* * 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 <lb/lb.h> #include <vppinfra/byte_order.h> #include <vppinfra/string.h> #include <vlibapi/api.h> #include <vlibapi/api.h> #include <vlibmemory/api.h> #define vl_msg_id(n,h) n, typedef enum { #include <lb/lb.api.h> /* We'll want to know how many messages IDs we need... */ VL_MSG_FIRST_AVAILABLE, } vl_msg_id_t; #undef vl_msg_id /* define message structures */ #define vl_typedefs #include <lb/lb.api.h> #undef vl_typedefs /* define generated endian-swappers */ #define vl_endianfun #include <lb/lb.api.h> #undef vl_endianfun #define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__) /* Get the API version number */ #define vl_api_version(n,v) static u32 api_version=(v); #include <lb/lb.api.h> #undef vl_api_version #define vl_msg_name_crc_list #include <lb/lb.api.h> #undef vl_msg_name_crc_list #define REPLY_MSG_ID_BASE lbm->msg_id_base #include <vlibapi/api_helper_macros.h> static void setup_message_id_table (lb_main_t * lbm, api_main_t * am) { #define _(id,n,crc) \ vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id + lbm->msg_id_base); foreach_vl_msg_name_crc_lb; #undef _ } /* Macro to finish up custom dump fns */ #define FINISH \ vec_add1 (s, 0); \ vl_print (handle, (char *)s); \ vec_free (s); \ return handle; static void vl_api_lb_conf_t_handler (vl_api_lb_conf_t * mp) { lb_main_t *lbm = &lb_main; vl_api_lb_conf_reply_t * rmp; int rv = 0; if (mp->sticky_buckets_per_core == ~0) { mp->sticky_buckets_per_core = lbm->per_cpu_sticky_buckets; } if (mp->flow_timeout == ~0) { mp->flow_timeout = lbm->flow_timeout; } rv = lb_conf((ip4_address_t *)&mp->ip4_src_address, (ip6_address_t *)&mp->ip6_src_address, mp->sticky_buckets_per_core, mp->flow_timeout); REPLY_MACRO (VL_API_LB_CONF_REPLY); } static void *vl_api_lb_conf_t_print (vl_api_lb_conf_t *mp, void * handle) { u8 * s; s = format (0, "SCRIPT: lb_conf "); s = format (s, "%U ", format_ip4_address, (ip4_address_t *)&mp->ip4_src_address); s = format (s, "%U ", format_ip6_address, (ip6_address_t *)&mp->ip6_src_address); s = format (s, "%u ", mp->sticky_buckets_per_core); s = format (s, "%u ", mp->flow_timeout); FINISH; } static void vl_api_lb_add_del_vip_t_handler (vl_api_lb_add_del_vip_t * mp) { lb_main_t *lbm = &lb_main; vl_api_lb_conf_reply_t * rmp; int rv = 0; lb_vip_add_args_t args; /* if port == 0, it means all-port VIP */ if (mp->port == 0) { mp->protocol = ~0; } memcpy (&(args.prefix.ip6), mp->ip_prefix, sizeof(args.prefix.ip6)); if (mp->is_del) { u32 vip_index; if (!(rv = lb_vip_find_index(&(args.prefix), mp->prefix_length, mp->protocol, ntohs(mp->port), &vip_index))) rv = lb_vip_del(vip_index); } else { u32 vip_index; lb_vip_type_t type = 0; if (ip46_prefix_is_ip4(&(args.prefix), mp->prefix_length)) { if (mp->encap == LB_ENCAP_TYPE_GRE4) type = LB_VIP_TYPE_IP4_GRE4; else if (mp->encap == LB_ENCAP_TYPE_GRE6) type = LB_VIP_TYPE_IP4_GRE6; else if (mp->encap == LB_ENCAP_TYPE_L3DSR) type = LB_VIP_TYPE_IP4_L3DSR; else if (mp->encap == LB_ENCAP_TYPE_NAT4) type = LB_VIP_TYPE_IP4_NAT4; } else { if (mp->encap == LB_ENCAP_TYPE_GRE4) type = LB_VIP_TYPE_IP6_GRE4; else if (mp->encap == LB_ENCAP_TYPE_GRE6) type = LB_VIP_TYPE_IP6_GRE6; else if (mp->encap == LB_ENCAP_TYPE_NAT6) type = LB_VIP_TYPE_IP6_NAT6; } args.plen = mp->prefix_length; args.protocol = mp->protocol; args.port = ntohs(mp->port); args.type = type; args.new_length = ntohl(mp->new_flows_table_length); if (mp->encap == LB_ENCAP_TYPE_L3DSR) { args.encap_args.dscp = (u8)(mp->dscp & 0x3F); } else if ((mp->encap == LB_ENCAP_TYPE_NAT4) ||(mp->encap == LB_ENCAP_TYPE_NAT6)) { args.encap_args.srv_type = mp->type; args.encap_args.target_port = ntohs(mp->target_port); } rv = lb_vip_add(args, &vip_index); } REPLY_MACRO (VL_API_LB_ADD_DEL_VIP_REPLY); } static void *vl_api_lb_add_del_vip_t_print (vl_api_lb_add_del_vip_t *mp, void * handle) { u8 * s; s = format (0, "SCRIPT: lb_add_del_vip "); s = format (s, "%U ", format_ip46_prefix, (ip46_address_t *)mp->ip_prefix, mp->prefix_length, IP46_TYPE_ANY); s = format (s, "%s ", (mp->encap == LB_ENCAP_TYPE_GRE4)? "gre4" : (mp->encap == LB_ENCAP_TYPE_GRE6)? "gre6" : (mp->encap == LB_ENCAP_TYPE_NAT4)? "nat4" : (mp->encap == LB_ENCAP_TYPE_NAT6)? "nat6" : "l3dsr"); if (mp->encap==LB_ENCAP_TYPE_L3DSR) { s = format (s, "dscp %u ", mp->dscp); } if ((mp->encap==LB_ENCAP_TYPE_NAT4) || (mp->encap==LB_ENCAP_TYPE_NAT6)) { s = format (s, "type %u ", mp->type); s = format (s, "port %u ", mp->port); s = format (s, "target_port %u ", mp->target_port); } s = format (s, "%u ", mp->new_flows_table_length); s = format (s, "%s ", mp->is_del?"del":"add"); FINISH; } static void vl_api_lb_add_del_as_t_handler (vl_api_lb_add_del_as_t * mp) { lb_main_t *lbm = &lb_main; vl_api_lb_conf_reply_t * rmp; int rv = 0; u32 vip_index; ip46_address_t vip_ip_prefix; memcpy(&vip_ip_prefix.ip6, mp->vip_ip_prefix, sizeof(vip_ip_prefix.ip6)); ip46_address_t as_address; memcpy(&as_address.ip6, mp->as_address, sizeof(as_address.ip6)); if ((rv = lb_vip_find_index(&vip_ip_prefix, mp->vip_prefix_length, mp->protocol, ntohs(mp->port), &vip_index))) goto done; if (mp->is_del) rv = lb_vip_del_ass(vip_index, &as_address, 1, mp->is_flush); else rv = lb_vip_add_ass(vip_index, &as_address, 1); done: REPLY_MACRO (VL_API_LB_ADD_DEL_AS_REPLY); } static void *vl_api_lb_add_del_as_t_print (vl_api_lb_add_del_as_t *mp, void * handle) { u8 * s; s = format (0, "SCRIPT: lb_add_del_as "); s = format (s, "%U ", format_ip46_prefix, (ip46_address_t *)mp->vip_ip_prefix, mp->vip_prefix_length, IP46_TYPE_ANY); s = format (s, "%U ", format_ip46_address, (ip46_address_t *)mp->as_address, IP46_TYPE_ANY); s = format (s, "%s ", mp->is_del?"del":"add"); FINISH; } static void vl_api_lb_flush_vip_t_handler (vl_api_lb_flush_vip_t * mp) { lb_main_t *lbm = &lb_main; int rv = 0; ip46_address_t vip_prefix; u8 vip_plen; u32 vip_index; vl_api_lb_flush_vip_reply_t * rmp; if (mp->port == 0) { mp->protocol = ~0; } memcpy (&(vip_prefix.ip6), mp->ip_prefix, sizeof(vip_prefix.ip6)); vip_plen = mp->prefix_length; rv = lb_vip_find_index(&vip_prefix, vip_plen, mp->protocol, ntohs(mp->port), &vip_index); rv = lb_flush_vip_as(vip_index, ~0); REPLY_MACRO (VL_API_LB_FLUSH_VIP_REPLY); } static void *vl_api_lb_flush_vip_t_print (vl_api_lb_flush_vip_t *mp, void * handle) { u8 * s; s = format (0, "SCRIPT: lb_add_del_vip "); s = format (s, "%U ", format_ip46_prefix, (ip46_address_t *)mp->ip_prefix, mp->prefix_length, IP46_TYPE_ANY); s = format (s, "protocol %u ", mp->protocol); s = format (s, "port %u ", mp->port); FINISH; } /* List of message types that this plugin understands */ #define foreach_lb_plugin_api_msg \ _(LB_CONF, lb_conf) \ _(LB_ADD_DEL_VIP, lb_add_del_vip) \ _(LB_ADD_DEL_AS, lb_add_del_as) \ _(LB_FLUSH_VIP, lb_flush_vip) static clib_error_t * lb_api_init (vlib_main_t * vm) { lb_main_t *lbm = &lb_main; u8 *name = format (0, "lb_%08x%c", api_version, 0); lbm->msg_id_base = vl_msg_api_get_msg_ids ((char *) name, VL_MSG_FIRST_AVAILABLE); #define _(N,n) \ vl_msg_api_set_handlers((VL_API_##N + lbm->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_lb_plugin_api_msg; #undef _ /* Add our API messages to the global name_crc hash table */ setup_message_id_table (lbm, &api_main); return 0; } VLIB_INIT_FUNCTION (lb_api_init);