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/*
* nsh.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 <vlibsocket/api.h>
#include <vppinfra/error.h>
#include <nsh/nsh.h>
uword unformat_sw_if_index (unformat_input_t * input, va_list * args);
/* Declare message IDs */
#include <nsh/nsh_msg_enum.h>
/* define message structures */
#define vl_typedefs
#include <nsh/nsh_all_api_h.h>
#undef vl_typedefs
/* declare message handlers for each api */
#define vl_endianfun /* define message structures */
#include <nsh/nsh_all_api_h.h>
#undef vl_endianfun
/* instantiate all the print functions we know about */
#define vl_print(handle, ...)
#define vl_printfun
#include <nsh/nsh_all_api_h.h>
#undef vl_printfun
/* Get the API version number. */
#define vl_api_version(n,v) static u32 api_version=(v);
#include <nsh/nsh_all_api_h.h>
#undef vl_api_version
typedef struct {
/* API message ID base */
u16 msg_id_base;
vat_main_t *vat_main;
} nsh_test_main_t;
nsh_test_main_t nsh_test_main;
#define foreach_standard_reply_retval_handler \
_(nsh_add_del_entry_reply) \
_(nsh_add_del_map_reply) \
#define _(n) \
static void vl_api_##n##_t_handler \
(vl_api_##n##_t * mp) \
{ \
vat_main_t * vam = nsh_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 \
_(NSH_ADD_DEL_ENTRY_REPLY, nsh_add_del_entry_reply) \
_(NSH_ADD_DEL_MAP_REPLY, nsh_add_del_map_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)); \
memset (mp, 0, sizeof (*mp)); \
mp->_vl_msg_id = ntohs (VL_API_##T + sm->msg_id_base); \
mp->client_index = vam->my_client_index; \
} while(0);
#define M2(T,t,n) \
do { \
vam->result_ready = 0; \
mp = vl_msg_api_alloc(sizeof(*mp)+(n)); \
memset (mp, 0, sizeof (*mp)); \
mp->_vl_msg_id = ntohs (VL_API_##T + sm->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_nsh_add_del_entry (vat_main_t * vam)
{
nsh_test_main_t * sm = &nsh_test_main;
unformat_input_t * line_input = vam->input;
f64 timeout;
u8 is_add = 1;
u8 ver_o_c = 0;
u8 length = 0;
u8 md_type = 0;
u8 next_protocol = 1; /* default: ip4 */
u32 nsp;
u8 nsp_set = 0;
u32 nsi;
u8 nsi_set = 0;
u32 nsp_nsi;
u32 c1 = 0;
u32 c2 = 0;
u32 c3 = 0;
u32 c4 = 0;
u32 *tlvs = 0;
u32 tmp;
vl_api_nsh_add_del_entry_t * mp;
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) {
if (unformat (line_input, "del"))
is_add = 0;
else if (unformat (line_input, "version %d", &tmp))
ver_o_c |= (tmp & 3) << 6;
else if (unformat (line_input, "o-bit %d", &tmp))
ver_o_c |= (tmp & 1) << 5;
else if (unformat (line_input, "c-bit %d", &tmp))
ver_o_c |= (tmp & 1) << 4;
else if (unformat (line_input, "md-type %d", &tmp))
md_type = tmp;
else if (unformat(line_input, "next-ip4"))
next_protocol = 1;
else if (unformat(line_input, "next-ip6"))
next_protocol = 2;
else if (unformat(line_input, "next-ethernet"))
next_protocol = 3;
else if (unformat (line_input, "c1 %d", &c1))
;
else if (unformat (line_input, "c2 %d", &c2))
;
else if (unformat (line_input, "c3 %d", &c3))
;
else if (unformat (line_input, "c4 %d", &c4))
;
else if (unformat (line_input, "nsp %d", &nsp))
nsp_set = 1;
else if (unformat (line_input, "nsi %d", &nsi))
nsi_set = 1;
else if (unformat (line_input, "tlv %x"))
vec_add1 (tlvs, tmp);
else
return -99; // PARSE ERROR;
}
unformat_free (line_input);
if (nsp_set == 0)
return -1; //TODO Error type for this cond: clib_error_return (0, "nsp not specified");
if (nsi_set == 0)
return -2; //TODO Error type for this cond:clib_error_return (0, "nsi not specified");
if (md_type != 1)
return -3; //TODO Error type for this cond: clib_error_return (0, "md-type 1 only supported at this time");
//TODO sort out TLVS and MD Type2 support
md_type = 1;
length = 6;
nsp_nsi = (nsp<<8) | nsi;
/* Construct the API message */
M(NSH_ADD_DEL_ENTRY, nsh_add_del_entry);
mp->is_add = is_add;
#define _(x) mp->x = x;
foreach_copy_nshhdr_field;
#undef _
mp->tlvs[0] = 0 ; // TODO FIXME this shouldn't be set 0 - in NSH_SFC project
/* send it... */
S;
/* Wait for a reply... */
W;
}
static int api_nsh_add_del_map (vat_main_t * vam)
{
nsh_test_main_t * sm = &nsh_test_main;
unformat_input_t * line_input = vam->input;
f64 timeout;
u8 is_add = 1;
u32 nsp, nsi, mapped_nsp, mapped_nsi;
int nsp_set = 0, nsi_set = 0, mapped_nsp_set = 0, mapped_nsi_set = 0;
u32 next_node = ~0;
u32 sw_if_index = ~0; // temporary requirement to get this moved over to NSHSFC
vl_api_nsh_add_del_map_t * mp;
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) {
if (unformat (line_input, "del"))
is_add = 0;
else if (unformat (line_input, "nsp %d", &nsp))
nsp_set = 1;
else if (unformat (line_input, "nsi %d", &nsi))
nsi_set = 1;
else if (unformat (line_input, "mapped-nsp %d", &mapped_nsp))
mapped_nsp_set = 1;
else if (unformat (line_input, "mapped-nsi %d", &mapped_nsi))
mapped_nsi_set = 1;
else if (unformat (line_input, "encap-gre-intf %d", &sw_if_index))
next_node = NSH_INPUT_NEXT_ENCAP_GRE;
else if (unformat (line_input, "encap-vxlan-gpe-intf %d", &sw_if_index))
next_node = NSH_INPUT_NEXT_ENCAP_VXLANGPE;
else if (unformat (line_input, "encap-none"))
next_node = NSH_INPUT_NEXT_DROP; // Once moved to NSHSFC see nsh.h:foreach_nsh_input_next to handle this case
else
return -99; //TODO clib_error_return (0, "parse error: '%U'",
}
unformat_free (line_input);
if (nsp_set == 0 || nsi_set == 0)
return -1; // TODO create return value: clib_error_return (0, "nsp nsi pair required. Key: for NSH entry");
if (mapped_nsp_set == 0 || mapped_nsi_set == 0)
return -2; // TODO create return valuee clib_error_return (0, "mapped-nsp mapped-nsi pair required. Key: for NSH entry");
if (next_node == ~0)
return -3; //TODO clib_error_return (0, "must specific action: [encap-gre-intf <nn> | encap-vxlan-gpe-intf <nn> | encap-none]");
M(NSH_ADD_DEL_MAP, nsh_add_del_map);
/* set args structure */
mp->is_add = is_add;
mp->nsp_nsi = (nsp<< NSH_NSP_SHIFT) | nsi;
mp->mapped_nsp_nsi = (mapped_nsp<< NSH_NSP_SHIFT) | mapped_nsi;
mp->sw_if_index = sw_if_index;
mp->next_node = next_node;
/* send it... */
S;
/* Wait for a reply... */
W;
}
/*
* List of messages that the api test plugin sends,
* and that the data plane plugin processes
*/
#define foreach_vpe_api_msg \
_(nsh_add_del_entry, "{nsp <nn> nsi <nn>} c1 <nn> c2 <nn> c3 <nn> c4 <nn> [md-type <nn>] [tlv <xx>] [del]") \
_(nsh_add_del_map, "nsp <nn> nsi <nn> [del] map-nsp <nn> map-nsi <nn> [encap-gre-intf <nn> | encap-vxlan-gpe-intf <nn> | encap-none]")
void vat_api_hookup (vat_main_t *vam)
{
nsh_test_main_t * sm = &nsh_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)
{
nsh_test_main_t * sm = &nsh_test_main;
u8 * name;
sm->vat_main = vam;
/* Ask the vpp engine for the first assigned message-id */
name = format (0, "nsh_%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)
vat_api_hookup (vam);
vec_free(name);
return 0;
}
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