/* * nsim.c - skeleton vpp-api-test plug-in * * Copyright (c) <current-year> <your-organization> * 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> uword unformat_sw_if_index (unformat_input_t * input, va_list * args); /* Declare message IDs */ #include <nsim/nsim_msg_enum.h> /* define message structures */ #define vl_typedefs #include <nsim/nsim_all_api_h.h> #undef vl_typedefs /* declare message handlers for each api */ #define vl_endianfun /* define message structures */ #include <nsim/nsim_all_api_h.h> #undef vl_endianfun /* instantiate all the print functions we know about */ #define vl_print(handle, ...) #define vl_printfun #include <nsim/nsim_all_api_h.h> #undef vl_printfun /* Get the API version number. */ #define vl_api_version(n,v) static u32 api_version=(v); #include <nsim/nsim_all_api_h.h> #undef vl_api_version typedef struct { /* API message ID base */ u16 msg_id_base; vat_main_t *vat_main; } nsim_test_main_t; nsim_test_main_t nsim_test_main; #define __plugin_msg_base nsim_test_main.msg_id_base #include <vlibapi/vat_helper_macros.h> #define foreach_standard_reply_retval_handler \ _(nsim_enable_disable_reply) \ _(nsim_configure_reply) #define _(n) \ static void vl_api_##n##_t_handler \ (vl_api_##n##_t * mp) \ { \ vat_main_t * vam = nsim_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 \ _(NSIM_ENABLE_DISABLE_REPLY, nsim_enable_disable_reply) \ _(NSIM_CONFIGURE_REPLY, nsim_configure_reply) static int api_nsim_enable_disable (vat_main_t * vam) { unformat_input_t *i = vam->input; int enable_disable = 1; u32 sw_if_index0 = ~0; u32 sw_if_index1 = ~0; u32 tmp; vl_api_nsim_enable_disable_t *mp; int ret; /* Parse args required to build the message */ while (unformat_check_input (i) != UNFORMAT_END_OF_INPUT) { if (unformat (i, "%U", unformat_sw_if_index, vam, &tmp)) { if (sw_if_index0 == ~0) sw_if_index0 = tmp; else sw_if_index1 = tmp; } else if (unformat (i, "sw_if_index %d", &tmp)) { if (sw_if_index0 == ~0) sw_if_index0 = tmp; else sw_if_index1 = tmp; } else if (unformat (i, "disable")) enable_disable = 0; else break; } if (sw_if_index0 == ~0 || sw_if_index1 == ~0) { errmsg ("missing interface name / explicit sw_if_index number \n"); return -99; } /* Construct the API message */ M (NSIM_ENABLE_DISABLE, mp); mp->sw_if_index0 = ntohl (sw_if_index0); mp->sw_if_index1 = ntohl (sw_if_index1); mp->enable_disable = enable_disable; /* send it... */ S (mp); /* Wait for a reply... */ W (ret); return ret; } static uword unformat_delay (unformat_input_t * input, va_list * args) { f64 *result = va_arg (*args, f64 *); f64 tmp; if (unformat (input, "%f us", &tmp)) *result = tmp * 1e-6; else if (unformat (input, "%f ms", &tmp)) *result = tmp * 1e-3; else if (unformat (input, "%f sec", &tmp)) *result = tmp; else return 0; return 1; } static uword unformat_bandwidth (unformat_input_t * input, va_list * args) { f64 *result = va_arg (*args, f64 *); f64 tmp; if (unformat (input, "%f gbit", &tmp)) *result = tmp * 1e9; else if (unformat (input, "%f gbyte", &tmp)) *result = tmp * 8e9; else return 0; return 1; } static int api_nsim_configure (vat_main_t * vam) { vl_api_nsim_configure_t *mp; unformat_input_t *i = vam->input; f64 delay = 0.0, bandwidth = 0.0; f64 packet_size = 1500.0; u32 num_workers = vlib_num_workers (); u32 packets_per_drop = 0; int ret; while (unformat_check_input (i) != UNFORMAT_END_OF_INPUT) { if (unformat (i, "delay %U", unformat_delay, &delay)) ; else if (unformat (i, "bandwidth %U", unformat_bandwidth, &bandwidth)) ; else if (unformat (i, "packet-size %f", &packet_size)) ; else if (unformat (i, "packets-per-drop %u", &packets_per_drop)) ; else break; } if (delay == 0.0 || bandwidth == 0.0) { errmsg ("must specify delay and bandwidth"); return -99; } /* Construct the API message */ M (NSIM_CONFIGURE, mp); mp->delay_in_usec = (u32) (delay * 1e6); mp->delay_in_usec = ntohl (mp->delay_in_usec); mp->average_packet_size = (u32) (packet_size); mp->average_packet_size = ntohl (mp->average_packet_size); mp->bandwidth_in_bits_per_second = (u64) (bandwidth); mp->bandwidth_in_bits_per_second = clib_host_to_net_u64 (mp->bandwidth_in_bits_per_second); mp->packets_per_drop = ntohl (packets_per_drop); /* send it... */ S (mp); /* Wait for a reply... */ 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 \ _(nsim_enable_disable, \ "[<intfc0> | sw_if_index <swif0>] [<intfc1> | sw_if_index <swif1>] [disable]") \ _(nsim_configure, "delay <time> bandwidth <bw> [packet-size <nn>]" \ "[packets-per-drop <nnnn>]") static void nsim_api_hookup (vat_main_t * vam) { nsim_test_main_t *sm = &nsim_test_main; /* Hook up handlers for replies from the data plane plug-in */ #define _(N,n) \ vl_msg_api_set_handlers((VL_API_##N + sm->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) { nsim_test_main_t *sm = &nsim_test_main; u8 *name; sm->vat_main = vam; /* Ask the vpp engine for the first assigned message-id */ name = format (0, "nsim_%08x%c", api_version, 0); sm->msg_id_base = vl_client_get_first_plugin_msg_id ((char *) name); if (sm->msg_id_base != (u16) ~ 0) nsim_api_hookup (vam); vec_free (name); return 0; } /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */