/* * 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 <vat/vat.h> #include <vlibapi/api.h> #include <vlibmemory/api.h> #include <vppinfra/error.h> #include <lb/lb.h> #define __plugin_msg_base lb_test_main.msg_id_base #include <vlibapi/vat_helper_macros.h> //TODO: Move that to vat/plugin_api.c ////////////////////////// uword unformat_ip46_address (unformat_input_t * input, va_list * args) { ip46_address_t *ip46 = va_arg (*args, ip46_address_t *); ip46_type_t type = va_arg (*args, ip46_type_t); if ((type != IP46_TYPE_IP6) && unformat(input, "%U", unformat_ip4_address, &ip46->ip4)) { ip46_address_mask_ip4(ip46); return 1; } else if ((type != IP46_TYPE_IP4) && unformat(input, "%U", unformat_ip6_address, &ip46->ip6)) { return 1; } return 0; } uword unformat_ip46_prefix (unformat_input_t * input, va_list * args) { ip46_address_t *ip46 = va_arg (*args, ip46_address_t *); u8 *len = va_arg (*args, u8 *); ip46_type_t type = va_arg (*args, ip46_type_t); u32 l; if ((type != IP46_TYPE_IP6) && unformat(input, "%U/%u", unformat_ip4_address, &ip46->ip4, &l)) { if (l > 32) return 0; *len = l + 96; ip46->pad[0] = ip46->pad[1] = ip46->pad[2] = 0; } else if ((type != IP46_TYPE_IP4) && unformat(input, "%U/%u", unformat_ip6_address, &ip46->ip6, &l)) { if (l > 128) return 0; *len = l; } else { return 0; } return 1; } ///////////////////////// #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 /* declare message handlers for each api */ #define vl_endianfun /* define message structures */ #include <lb/lb.api.h> #undef vl_endianfun /* instantiate all the print functions we know about */ #define vl_print(handle, ...) #define vl_printfun #include <lb/lb.api.h> #undef vl_printfun /* 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 typedef struct { /* API message ID base */ u16 msg_id_base; vat_main_t *vat_main; } lb_test_main_t; lb_test_main_t lb_test_main; #define foreach_standard_reply_retval_handler \ _(lb_conf_reply) \ _(lb_add_del_vip_reply) \ _(lb_add_del_as_reply) #define _(n) \ static void vl_api_##n##_t_handler \ (vl_api_##n##_t * mp) \ { \ vat_main_t * vam = lb_test_main.vat_main; \ i32 retval = ntohl(mp->retval); \ if (vam->async_mode) { \ vam->async_errors += (retval < 0); \ } else { \ vam->retval = retval; \ vam->result_ready = 1; \ } \ } foreach_standard_reply_retval_handler; #undef _ /* * Table of message reply handlers, must include boilerplate handlers * we just generated */ #define foreach_vpe_api_reply_msg \ _(LB_CONF_REPLY, lb_conf_reply) \ _(LB_ADD_DEL_VIP_REPLY, lb_add_del_vip_reply) \ _(LB_ADD_DEL_AS_REPLY, lb_add_del_as_reply) static int api_lb_conf (vat_main_t * vam) { unformat_input_t *line_input = vam->input; vl_api_lb_conf_t *mp; u32 ip4_src_address = 0xffffffff; ip46_address_t ip6_src_address; u32 sticky_buckets_per_core = LB_DEFAULT_PER_CPU_STICKY_BUCKETS; u32 flow_timeout = LB_DEFAULT_FLOW_TIMEOUT; int ret; ip6_src_address.as_u64[0] = 0xffffffffffffffffL; ip6_src_address.as_u64[1] = 0xffffffffffffffffL; while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { if (unformat(line_input, "ip4-src-address %U", unformat_ip4_address, &ip4_src_address)) ; else if (unformat(line_input, "ip6-src-address %U", unformat_ip6_address, &ip6_src_address)) ; else if (unformat(line_input, "buckets %d", &sticky_buckets_per_core)) ; else if (unformat(line_input, "timeout %d", &flow_timeout)) ; else { errmsg ("invalid arguments\n"); return -99; } } M(LB_CONF, mp); clib_memcpy (&(mp->ip4_src_address), &ip4_src_address, sizeof (ip4_src_address)); clib_memcpy (&(mp->ip6_src_address), &ip6_src_address, sizeof (ip6_src_address)); mp->sticky_buckets_per_core = htonl (sticky_buckets_per_core); mp->flow_timeout = htonl (flow_timeout); S(mp); W (ret); return ret; } static int api_lb_add_del_vip (vat_main_t * vam) { unformat_input_t *line_input = vam->input; vl_api_lb_add_del_vip_t *mp; int ret; ip46_address_t ip_prefix; u8 prefix_length = 0; u8 protocol; u32 port = 0; u32 encap = 0; u32 dscp = ~0; u32 srv_type = LB_SRV_TYPE_CLUSTERIP; u32 target_port = 0; u32 new_length = 1024; if (!unformat(line_input, "%U", unformat_ip46_prefix, &ip_prefix, &prefix_length, IP46_TYPE_ANY, &prefix_length)) { errmsg ("lb_add_del_vip: invalid vip prefix\n"); return -99; } while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { if (unformat(line_input, "new_len %d", &new_length)) ; else if (unformat(line_input, "del")) mp->is_del = 1; else if (unformat(line_input, "protocol tcp")) { protocol = IP_PROTOCOL_TCP; } else if (unformat(line_input, "protocol udp")) { protocol = IP_PROTOCOL_UDP; } else if (unformat(line_input, "port %d", &port)) ; else if (unformat(line_input, "encap gre4")) encap = LB_ENCAP_TYPE_GRE4; else if (unformat(line_input, "encap gre6")) encap = LB_ENCAP_TYPE_GRE6; else if (unformat(line_input, "encap l3dsr")) encap = LB_ENCAP_TYPE_L3DSR; else if (unformat(line_input, "encap nat4")) encap = LB_ENCAP_TYPE_NAT4; else if (unformat(line_input, "encap nat6")) encap = LB_ENCAP_TYPE_NAT6; else if (unformat(line_input, "dscp %d", &dscp)) ; else if (unformat(line_input, "type clusterip")) srv_type = LB_SRV_TYPE_CLUSTERIP; else if (unformat(line_input, "type nodeport")) srv_type = LB_SRV_TYPE_NODEPORT; else if (unformat(line_input, "target_port %d", &target_port)) ; else { errmsg ("invalid arguments\n"); return -99; } } if ((encap != LB_ENCAP_TYPE_L3DSR) && (dscp != ~0)) { errmsg("lb_vip_add error: should not configure dscp for none L3DSR."); return -99; } if ((encap == LB_ENCAP_TYPE_L3DSR) && (dscp >= 64)) { errmsg("lb_vip_add error: dscp for L3DSR should be less than 64."); return -99; } M(LB_ADD_DEL_VIP, mp); clib_memcpy (mp->ip_prefix, &ip_prefix, sizeof (ip_prefix)); mp->prefix_length = prefix_length; mp->protocol = (u8)protocol; mp->port = htons((u16)port); mp->encap = (u8)encap; mp->dscp = (u8)dscp; mp->type = (u8)srv_type; mp->target_port = htons((u16)target_port); mp->node_port = htons((u16)target_port); mp->new_flows_table_length = htonl(new_length); S(mp); W (ret); return ret; } static int api_lb_add_del_as (vat_main_t * vam) { unformat_input_t *line_input = vam->input; vl_api_lb_add_del_as_t *mp; int ret; ip46_address_t vip_prefix, as_addr; u8 vip_plen; ip46_address_t *as_array = 0; u32 vip_index; u32 port = 0; u8 protocol = 0; u8 is_del = 0; u8 is_flush = 0; if (!unformat(line_input, "%U", unformat_ip46_prefix, &vip_prefix, &vip_plen, IP46_TYPE_ANY)) { errmsg ("lb_add_del_as: invalid vip prefix\n"); return -99; } while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { if (unformat(line_input, "%U", unformat_ip46_address, &as_addr, IP46_TYPE_ANY)) { vec_add1(as_array, as_addr); } else if (unformat(line_input, "del")) { is_del = 1; } else if (unformat(line_input, "flush")) { is_flush = 1; } else if (unformat(line_input, "protocol tcp")) { protocol = IP_PROTOCOL_TCP; } else if (unformat(line_input, "protocol udp")) { protocol = IP_PROTOCOL_UDP; } else if (unformat(line_input, "port %d", &port)) ; else { errmsg ("invalid arguments\n"); return -99; } } if (!vec_len(as_array)) { errmsg ("No AS address provided \n"); return -99; } M(LB_ADD_DEL_AS, mp); clib_memcpy (mp->vip_ip_prefix, &vip_prefix, sizeof (vip_prefix)); mp->vip_prefix_length = vip_plen; mp->protocol = (u8)protocol; mp->port = htons((u16)port); clib_memcpy (mp->as_address, &as_addr, sizeof (as_addr)); mp->is_del = is_del; mp->is_flush = is_flush; S(mp); W (ret); return ret; } /* * List of messages that the api test plugin sends, * and that the data plane plugin processes */ #define foreach_vpe_api_msg \ _(lb_conf, "[ip4-src-address <addr>] [ip6-src-address <addr>] " \ "[buckets <n>] [timeout <s>]") \ _(lb_add_del_vip, "<prefix> " \ "[protocol (tcp|udp) port <n>] " \ "[encap (gre6|gre4|l3dsr|nat4|nat6)] " \ "[dscp <n>] " \ "[type (nodeport|clusterip) target_port <n>] " \ "[new_len <n>] [del]") \ _(lb_add_del_as, "<vip-prefix> [protocol (tcp|udp) port <n>] " \ "[<address>] [del] [flush]") static void lb_vat_api_hookup (vat_main_t *vam) { lb_test_main_t * lbtm = &lb_test_main; /* Hook up handlers for replies from the data plane plug-in */ #define _(N,n) \ vl_msg_api_set_handlers((VL_API_##N + lbtm->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_vpe_api_reply_msg; #undef _ /* API messages we can send */ #define _(n,h) hash_set_mem (vam->function_by_name, #n, api_##n); foreach_vpe_api_msg; #undef _ /* Help strings */ #define _(n,h) hash_set_mem (vam->help_by_name, #n, h); foreach_vpe_api_msg; #undef _ } clib_error_t * vat_plugin_register (vat_main_t *vam) { lb_test_main_t * lbtm = &lb_test_main; u8 * name; lbtm->vat_main = vam; /* Ask the vpp engine for the first assigned message-id */ name = format (0, "lb_%08x%c", api_version, 0); lbtm->msg_id_base = vl_client_get_first_plugin_msg_id ((char *) name); if (lbtm->msg_id_base != (u16) ~0) lb_vat_api_hookup (vam); vec_free(name); return 0; }