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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 <vlib/vlib.h>
u8 *vlib_validate_buffers (vlib_main_t * vm,
u32 * buffers,
uword next_buffer_stride,
uword n_buffers,
vlib_buffer_known_state_t known_state,
uword follow_buffer_next);
static clib_error_t *
test_vlib_command_fn (vlib_main_t * vm,
unformat_input_t * input, vlib_cli_command_t * cmd)
{
u32 bi;
u8 *res;
u32 allocated;
vlib_buffer_t *b;
vlib_buffer_t *last_b;
u8 junk[4] = { 1, 2, 3, 4 };
vlib_packet_template_t _t, *t = &_t;
u8 *data_copy = 0;
/* Cover vlib_packet_template_get_packet */
t->packet_data = format (0, "silly packet data");
t->min_n_buffers_each_alloc = 1;
t->name = (u8 *) "test template";
if (vlib_packet_template_get_packet (vm, t, &bi))
vlib_buffer_free_one (vm, bi);
vec_free (t->packet_data);
/* Get a buffer */
allocated = vlib_buffer_alloc (vm, &bi, 1);
if (allocated != 1)
return clib_error_return (0, "Buffer allocation failure!");
b = vlib_get_buffer (vm, bi);
/* Force buffer allocation */
b->current_length = 2048;
last_b = b;
vlib_buffer_chain_append_data_with_alloc (vm, b, &last_b,
junk, ARRAY_LEN (junk));
/* Cover vlib_buffer_length_in_chain_slow_path(...) */
b->flags &= ~(VLIB_BUFFER_TOTAL_LENGTH_VALID);
vlib_cli_output (vm, "buffer length %d",
vlib_buffer_length_in_chain (vm, b));
b->flags &= ~(VLIB_BUFFER_TOTAL_LENGTH_VALID);
vlib_cli_output (vm, "%u", vlib_buffer_index_length_in_chain (vm, bi));
/* Add more data. Eat Mor Chikin. */
vlib_buffer_add_data (vm, &bi, junk, ARRAY_LEN (junk));
/* Dump the resulting two-chunk pkt */
vlib_cli_output (vm, "%U", format_vlib_buffer_and_data, b);
vec_validate (data_copy, vlib_buffer_length_in_chain (vm, b) - 1);
vlib_cli_output (vm, "%u", vlib_buffer_contents (vm, bi, data_copy));
vec_free (data_copy);
/* Cover simple functions in buffer.h / buffer_funcs.h */
vlib_cli_output (vm, "%llx", vlib_buffer_get_va (b));
vlib_cli_output (vm, "%llx", vlib_buffer_get_current_va (b));
vlib_cli_output (vm, "%d", vlib_buffer_has_space (b, 100ll));
vlib_buffer_reset (b);
vlib_cli_output (vm, "%llx", vlib_buffer_get_tail (b));
vlib_buffer_put_uninit (b, 0);
vlib_buffer_push_uninit (b, 0);
vlib_buffer_make_headroom (b, 0);
(void) vlib_buffer_pull (b, 0);
vlib_cli_output (vm, "%llx", vlib_buffer_get_pa (vm, b));
vlib_cli_output (vm, "%llx", vlib_buffer_get_current_pa (vm, b));
/* Validate it one way */
res = vlib_validate_buffer (vm, bi, 1 /* follow_buffer_next */ );
if (res)
return clib_error_return (0, "%v", res);
/* Validate it a different way */
res = vlib_validate_buffers (vm, &bi, 0 /* stride */ ,
1, VLIB_BUFFER_KNOWN_ALLOCATED,
1 /* follow_buffer_next */ );
if (res)
return clib_error_return (0, "%v", res);
/* Free it */
vlib_buffer_free_one (vm, bi);
/* It will be free */
res = vlib_validate_buffers (vm, &bi, 0 /* stride */ ,
1, VLIB_BUFFER_KNOWN_FREE,
1 /* follow_buffer_next */ );
if (res)
return clib_error_return (0, "%v", res);
/* It will not be allocated, exercise error path */
res = vlib_validate_buffers (vm, &bi, 0 /* stride */ ,
1, VLIB_BUFFER_KNOWN_ALLOCATED,
1 /* follow_buffer_next */ );
if (res)
return clib_error_return (0, "%v", res);
return 0;
}
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (test_vlib_command, static) =
{
.path = "test vlib",
.short_help = "vlib code coverate unit test",
.function = test_vlib_command_fn,
};
/* *INDENT-ON* */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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