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vpp/plugins/ila-plugin/ila/ila_api_test.c
Pierre Pfister 9b15f28295 Add ILA API and API test plugin VPP-412 
The ILA plugin could only be configured through CLI.
This patch adds API support to ila_interface and
ila_add_del_entry functions.
The patch also adds a test plugin for vpp_api_test.

Change-Id: I35d96c4e56bb32862cd08cc86a9fa25ff56ef583
Signed-off-by: Pierre Pfister <ppfister@cisco.com>
2016-09-16 16:25:23 +00:00

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/*
* 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 <vlibsocket/api.h>
#include <vppinfra/error.h>
#include <ila/ila.h>
#define vl_msg_id(n,h) n,
typedef enum
{
#include <ila/ila.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 <ila/ila.api.h>
#undef vl_typedefs
/* declare message handlers for each api */
#define vl_endianfun /* define message structures */
#include <ila/ila.api.h>
#undef vl_endianfun
/* instantiate all the print functions we know about */
#define vl_print(handle, ...)
#define vl_printfun
#include <ila/ila.api.h>
#undef vl_printfun
/* Get the API version number. */
#define vl_api_version(n,v) static u32 api_version=(v);
#include <ila/ila.api.h>
#undef vl_api_version
typedef struct
{
/* API message ID base */
u16 msg_id_base;
vat_main_t *vat_main;
} ila_api_test_main_t;
/*
* Unformat functions are replicate from ila.c
*
*/
static uword
unformat_ila_direction (unformat_input_t * input, va_list * args)
{
ila_direction_t *result = va_arg (*args, ila_direction_t *);
#define _(i,n,s) \
if (unformat(input, s)) \
{ \
*result = ILA_DIR_##i; \
return 1;\
}
ila_foreach_direction
#undef _
return 0;
}
static uword
unformat_ila_type (unformat_input_t * input, va_list * args)
{
ila_type_t *result = va_arg (*args, ila_type_t *);
#define _(i,n,s) \
if (unformat(input, s)) \
{ \
*result = ILA_TYPE_##i; \
return 1;\
}
ila_foreach_type
#undef _
return 0;
}
static uword
unformat_ila_csum_mode (unformat_input_t * input, va_list * args)
{
ila_csum_mode_t *result = va_arg (*args, ila_csum_mode_t *);
if (unformat (input, "none") || unformat (input, "no-action"))
{
*result = ILA_CSUM_MODE_NO_ACTION;
return 1;
}
if (unformat (input, "neutral-map"))
{
*result = ILA_CSUM_MODE_NEUTRAL_MAP;
return 1;
}
if (unformat (input, "adjust-transport"))
{
*result = ILA_CSUM_MODE_ADJUST_TRANSPORT;
return 1;
}
return 0;
}
static uword
unformat_half_ip6_address (unformat_input_t * input, va_list * args)
{
u64 *result = va_arg (*args, u64 *);
u32 a[4];
if (!unformat (input, "%x:%x:%x:%x", &a[0], &a[1], &a[2], &a[3]))
return 0;
if (a[0] > 0xFFFF || a[1] > 0xFFFF || a[2] > 0xFFFF || a[3] > 0xFFFF)
return 0;
*result = clib_host_to_net_u64 ((((u64) a[0]) << 48) |
(((u64) a[1]) << 32) |
(((u64) a[2]) << 16) | (((u64) a[3])));
return 1;
}
ila_api_test_main_t ila_api_test_main;
#define foreach_standard_reply_retval_handler \
_(ila_iface_reply) \
_(ila_add_del_entry_reply)
#define _(n) \
static void vl_api_##n##_t_handler \
(vl_api_##n##_t * mp) \
{ \
vat_main_t * vam = ila_api_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 _
#define foreach_vpe_api_reply_msg \
_(ILA_IFACE_REPLY, ila_iface_reply) \
_(ILA_ADD_DEL_ENTRY_REPLY, ila_add_del_entry_reply)
/* M: construct, but don't yet send a message */
#define M(T,t) \
do { \
vam->result_ready = 0; \
mp = vl_msg_api_alloc(sizeof(*mp)); \
memcpy (mp, &mps, sizeof (*mp)); \
mp->_vl_msg_id = \
ntohs (VL_API_##T + ila_api_test_main.msg_id_base); \
mp->client_index = vam->my_client_index; \
} while(0);
/* S: send a message */
#define S (vl_msg_api_send_shmem (vam->vl_input_queue, (u8 *)&mp))
/* W: wait for results, with timeout */
#define W \
do { \
timeout = vat_time_now (vam) + 1.0; \
\
while (vat_time_now (vam) < timeout) { \
if (vam->result_ready == 1) { \
return (vam->retval); \
} \
} \
return -99; \
} while(0);
static int
api_ila_iface (vat_main_t * vam)
{
unformat_input_t *i = vam->input;
f64 timeout;
vl_api_ila_iface_t mps, *mp;
mps.enable = 1;
if (!unformat (i, "%u", &mps.sw_if_index))
{
errmsg ("invalid arguments\n");
return -99;
}
if (unformat (i, "disable"))
mps.enable = 0;
M (ILA_IFACE, ila_iface);
S;
W;
/* NOTREACHED */
return 0;
}
static int
api_ila_add_del_entry (vat_main_t * vam)
{
unformat_input_t *i = vam->input;
f64 timeout;
vl_api_ila_add_del_entry_t mps, *mp;
mps.type = ILA_TYPE_IID;
mps.csum_mode = ILA_CSUM_MODE_NO_ACTION;
mps.local_adj_index = ~0;
mps.dir = ILA_DIR_BIDIR;
while (unformat_check_input (i) != UNFORMAT_END_OF_INPUT)
{
if (unformat (i, "type %U", unformat_ila_type, &mps.type))
;
else if (unformat
(i, "sir-address %U", unformat_ip6_address, &mps.sir_address))
;
else if (unformat
(i, "locator %U", unformat_half_ip6_address, &mps.locator))
;
else if (unformat (i, "adj-index %u", &mps.local_adj_index))
;
else if (unformat
(i, "csum-mode %U", unformat_ila_csum_mode, &mps.csum_mode))
;
else if (unformat (i, "vnid %x", &mps.vnid))
;
else if (unformat (i, "direction %U", unformat_ila_direction, &mps.dir))
;
else if (unformat (i, "del"))
mps.is_del = 1;
else
{
errmsg ("invalid arguments\n");
return -99;
}
}
M (ILA_ADD_DEL_ENTRY, ila_add_del_entry);
S;
W;
/* NOTREACHED */
return 0;
}
/*
* List of messages that the api test plugin sends,
* and that the data plane plugin processes
*/
#define foreach_vpe_api_msg \
_(ila_iface, "<sw-if-index> [disable]") \
_(ila_add_del_entry, "[type ("ila_type_list")] [sir-address <address>]" \
" [locator <locator>] [vnid <hex-vnid>]" \
" [adj-index <adj-index>] [direction ("ila_direction_list")]" \
" [csum-mode ("ila_csum_list")] [del]")
void
vat_api_hookup (vat_main_t * vam)
{
/* Hook up handlers for replies from the data plane plug-in */
#define _(N,n) \
vl_msg_api_set_handlers((VL_API_##N + ila_api_test_main.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)
{
u8 *name;
ila_api_test_main.vat_main = vam;
/* Ask the vpp engine for the first assigned message-id */
name = format (0, "ila_%08x%c", api_version, 0);
ila_api_test_main.msg_id_base =
vl_client_get_first_plugin_msg_id ((char *) name);
if (ila_api_test_main.msg_id_base != (u16) ~ 0)
vat_api_hookup (vam);
vec_free (name);
return 0;
}
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