src/plugins/nsim/nsim_test.c - fdio/vpp - Gitiles

 /*
  * 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_cross_connect_enable_disable_reply)      \
 _(nsim_output_feature_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_CROSS_CONNECT_ENABLE_DISABLE_REPLY,      \
 nsim_cross_connect_enable_disable_reply)        \
 _(NSIM_OUTPUT_FEATURE_ENABLE_DISABLE_REPLY,     \
 nsim_output_feature_enable_disable_reply)       \
 _(NSIM_CONFIGURE_REPLY, nsim_configure_reply)

 static int
 api_nsim_cross_connect_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_cross_connect_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_CROSS_CONNECT_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 int
 api_nsim_output_feature_enable_disable (vat_main_t * vam)
 {
   unformat_input_t *i = vam->input;
   int enable_disable = 1;
   u32 sw_if_index = ~0;
   vl_api_nsim_output_feature_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, &sw_if_index))
 	;
       else if (unformat (i, "sw_if_index %d", &sw_if_index))
 	;
       else if (unformat (i, "disable"))
 	enable_disable = 0;
       else
 	break;
     }

   if (sw_if_index == ~0)
     {
       errmsg ("missing interface name / explicit sw_if_index number \n");
       return -99;
     }

   /* Construct the API message */
   M (NSIM_OUTPUT_FEATURE_ENABLE_DISABLE, mp);
   mp->sw_if_index = ntohl (sw_if_index);
   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 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_cross_connect_enable_disable,                                    \
 "[<intfc0> | sw_if_index <swif0>] [<intfc1> | sw_if_index <swif1>] [disable]") \
 _(nsim_output_feature_enable_disable,"[<intfc> | sw_if_index <nnn> [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:
  */
	/*
	* 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_cross_connect_enable_disable_reply) \
	_(nsim_output_feature_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_CROSS_CONNECT_ENABLE_DISABLE_REPLY, \
	nsim_cross_connect_enable_disable_reply) \
	_(NSIM_OUTPUT_FEATURE_ENABLE_DISABLE_REPLY, \
	nsim_output_feature_enable_disable_reply) \
	_(NSIM_CONFIGURE_REPLY, nsim_configure_reply)

	static int
	api_nsim_cross_connect_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_cross_connect_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_CROSS_CONNECT_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 int
	api_nsim_output_feature_enable_disable (vat_main_t * vam)
	{
	unformat_input_t *i = vam->input;
	int enable_disable = 1;
	u32 sw_if_index = ~0;
	vl_api_nsim_output_feature_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, &sw_if_index))
	;
	else if (unformat (i, "sw_if_index %d", &sw_if_index))
	;
	else if (unformat (i, "disable"))
	enable_disable = 0;
	else
	break;
	}

	if (sw_if_index == ~0)
	{
	errmsg ("missing interface name / explicit sw_if_index number \n");
	return -99;
	}

	/* Construct the API message */
	M (NSIM_OUTPUT_FEATURE_ENABLE_DISABLE, mp);
	mp->sw_if_index = ntohl (sw_if_index);
	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 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_cross_connect_enable_disable, \
	"[<intfc0> \| sw_if_index <swif0>] [<intfc1> \| sw_if_index <swif1>] [disable]") \
	_(nsim_output_feature_enable_disable,"[<intfc> \| sw_if_index <nnn> [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:
	*/