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/*
* Copyright (c) 2019 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 <stdio.h>
#include <signal.h>
#include <vnet/session/application_interface.h>
typedef struct
{
/* VNET_API_ERROR_FOO -> "Foo" hash table */
uword *error_string_by_error_number;
} echo_common_main_t;
echo_common_main_t echo_common_main;
u8 *
format_ip4_address (u8 * s, va_list * args)
{
u8 *a = va_arg (*args, u8 *);
return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
}
u8 *
format_ip6_address (u8 * s, va_list * args)
{
ip6_address_t *a = va_arg (*args, ip6_address_t *);
u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon;
i_max_n_zero = ARRAY_LEN (a->as_u16);
max_n_zeros = 0;
i_first_zero = i_max_n_zero;
n_zeros = 0;
for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
{
u32 is_zero = a->as_u16[i] == 0;
if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16))
{
i_first_zero = i;
n_zeros = 0;
}
n_zeros += is_zero;
if ((!is_zero && n_zeros > max_n_zeros)
|| (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros))
{
i_max_n_zero = i_first_zero;
max_n_zeros = n_zeros;
i_first_zero = ARRAY_LEN (a->as_u16);
n_zeros = 0;
}
}
last_double_colon = 0;
for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
{
if (i == i_max_n_zero && max_n_zeros > 1)
{
s = format (s, "::");
i += max_n_zeros - 1;
last_double_colon = 1;
}
else
{
s = format (s, "%s%x",
(last_double_colon || i == 0) ? "" : ":",
clib_net_to_host_u16 (a->as_u16[i]));
last_double_colon = 0;
}
}
return s;
}
/* Format an IP46 address. */
u8 *
format_ip46_address (u8 * s, va_list * args)
{
ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
ip46_type_t type = va_arg (*args, ip46_type_t);
int is_ip4 = 1;
switch (type)
{
case IP46_TYPE_ANY:
is_ip4 = ip46_address_is_ip4 (ip46);
break;
case IP46_TYPE_IP4:
is_ip4 = 1;
break;
case IP46_TYPE_IP6:
is_ip4 = 0;
break;
}
return is_ip4 ?
format (s, "%U", format_ip4_address, &ip46->ip4) :
format (s, "%U", format_ip6_address, &ip46->ip6);
}
static uword
unformat_data (unformat_input_t * input, va_list * args)
{
u64 _a;
u64 *a = va_arg (*args, u64 *);
if (unformat (input, "%lluGb", &_a))
*a = _a << 30;
else if (unformat (input, "%lluMb", &_a))
*a = _a << 20;
else if (unformat (input, "%lluKb", &_a))
*a = _a << 10;
else if (unformat (input, "%llu", a))
;
else
return 0;
return 1;
}
static u8 *
format_api_error (u8 * s, va_list * args)
{
echo_common_main_t *ecm = &echo_common_main;
i32 error = va_arg (*args, u32);
uword *p;
p = hash_get (ecm->error_string_by_error_number, -error);
if (p)
s = format (s, "%s", p[0]);
else
s = format (s, "%d", error);
return s;
}
static void
init_error_string_table ()
{
echo_common_main_t *ecm = &echo_common_main;
ecm->error_string_by_error_number = hash_create (0, sizeof (uword));
#define _(n,v,s) hash_set (ecm->error_string_by_error_number, -v, s);
foreach_vnet_api_error;
#undef _
hash_set (ecm->error_string_by_error_number, 99, "Misc");
}
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