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/*
* 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:
*/
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