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/*
* (C) 2021-2022 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
* All Rights Reserved.
*
* Author: Neels Janosch Hofmeyr <nhofmeyr@sysmocom.de>
*
* SPDX-License-Identifier: GPL-2.0+
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include <stdio.h>
#include <errno.h>
#include <osmocom/core/application.h>
#include <osmocom/core/utils.h>
#include <osmocom/core/msgb.h>
#include <osmocom/gtlv/gtlv.h>
#include <myproto_ies_auto.h>
struct myproto_msg {
enum myproto_msg_type type;
union myproto_ies ies;
};
static void err_cb(void *data, void *decoded_struct, const char *file, int line, const char *fmt, ...)
{
va_list args;
va_start(args, fmt);
//printf("ERR: %s:%d ", file, line);
printf("ERR: ");
vprintf(fmt, args);
va_end(args);
}
static int myproto_msg_enc(struct msgb *dst, const struct myproto_msg *msg, const struct osmo_gtlv_cfg *cfg)
{
struct osmo_gtlv_put gtlv = {
.cfg = cfg,
.dst = dst,
};
msgb_put_u8(gtlv.dst, msg->type);
return myproto_ies_encode(>lv, (void *)&msg->ies, msg->type, err_cb, NULL, myproto_iei_names);
}
static int myproto_msg_dec(struct myproto_msg *msg, const uint8_t *data, size_t data_len,
const struct osmo_gtlv_cfg *cfg, bool ordered)
{
struct osmo_gtlv_load gtlv;
if (data_len < 1)
return -EINVAL;
msg->type = data[0];
gtlv = (struct osmo_gtlv_load){
.cfg = cfg,
.src = { data + 1, data_len - 1 },
};
return myproto_ies_decode(&msg->ies, >lv, ordered, msg->type, err_cb, NULL, myproto_iei_names);
}
void *ctx;
struct myproto_msg tests[] = {
{
MYPROTO_MSGT_MOO,
{
.moo = {
.foo = 23,
.bar = { "twentythree" },
},
},
},
{
MYPROTO_MSGT_MOO,
{
.moo = {
.foo = 23,
.bar = { "twentythree" },
.baz_present = true,
.baz = {
.v_int = 2323,
.v_bool = true,
},
},
},
},
{
MYPROTO_MSGT_MOO,
{
.moo = {
.foo = 23,
.bar = { "twentythree" },
.baz_present = true,
.baz = {
.v_int = 2323,
.v_bool = true,
},
.repeat_int_count = 3,
.repeat_int = { 1, 2, 0x7fff },
},
},
},
{
MYPROTO_MSGT_MOO,
{
.moo = {
.foo = 23,
.bar = { "twentythree" },
.baz_present = true,
.baz = {
.v_int = 2323,
.v_bool = true,
},
.repeat_int_count = 3,
.repeat_int = { 1, 2, 0x7fff },
.repeat_struct_count = 2,
.repeat_struct = {
{
.v_int = 1001,
.v_bool = true,
.v_enum = R_A,
},
{
.v_int = 1002,
.v_bool = false,
.v_enum = R_B,
},
},
.nest_present = true,
.nest = {
.foo = 42,
.bar = { "fortytwo" },
.baz = {
.v_int = 4242,
.v_bool = false,
},
},
},
},
},
{
MYPROTO_MSGT_GOO,
{
.goo = {
.foo = 17,
.bar_present = true,
.bar = { "gooei" },
.nest_count = 2,
.nest = {
{
.val_present = true,
.val = 0x0123456789abcdef,
.nest = {
.foo = 11,
.bar = { "eleven" },
.baz = {
.v_int = 1111,
.v_bool = true,
},
},
},
{
.val_present = false,
.nest = {
.foo = 12,
.bar = { "twelve" },
.baz = {
.v_int = 1212,
.v_bool = false,
},
},
},
},
},
},
},
};
int myproto_msg_to_str_buf(char *buf, size_t buflen, const struct myproto_msg *m)
{
struct osmo_strbuf sb = { .buf = buf, .len = buflen };
OSMO_STRBUF_PRINTF(sb, "%s={", get_value_string(myproto_msg_type_names, m->type));
OSMO_STRBUF_APPEND(sb, osmo_gtlvs_encode_to_str_buf, &m->ies, sizeof(m->ies), 0,
myproto_get_msg_coding(m->type), myproto_iei_names);
OSMO_STRBUF_PRINTF(sb, " }");
return sb.chars_needed;
}
char *myproto_msg_to_str(const struct myproto_msg *m)
{
OSMO_NAME_C_IMPL(ctx, 256, "ERROR", myproto_msg_to_str_buf, m)
}
void test_enc_dec(const char *label, const struct osmo_gtlv_cfg *cfg, bool ordered)
{
int i;
for (i = 0; i < ARRAY_SIZE(tests); i++) {
int rc;
const struct myproto_msg *orig = &tests[i];
struct myproto_msg parsed = {};
struct msgb *msg;
printf("\n=== start %s %s[%d]\n", label, __func__, i);
printf("encoded: %s\n", myproto_msg_to_str(orig));
msg = msgb_alloc(1024, __func__);
rc = myproto_msg_enc(msg, orig, cfg);
printf("myproto_msg_enc() rc = %d\n", rc);
printf("%s.\n", osmo_hexdump(msg->data, msg->len));
rc = myproto_msg_dec(&parsed, msg->data, msg->len, cfg, ordered);
printf("myproto_msg_dec() rc = %d\n", rc);
printf("decoded: %s\n", myproto_msg_to_str(&parsed));
if (strcmp(myproto_msg_to_str(orig), myproto_msg_to_str(&parsed))) {
printf(" ERROR: parsed != orig\n");
exit(1);
}
msgb_free(msg);
printf("=== end %s %s[%d]\n", label, __func__, i);
}
}
int main(int argc, char **argv)
{
ctx = talloc_named_const(NULL, 0, "test_gen_tlv");
msgb_talloc_ctx_init(ctx, 0);
test_enc_dec("t8l8v ordered", &osmo_t8l8v_cfg, true);
test_enc_dec("t8l8v unordered", &osmo_t8l8v_cfg, false);
test_enc_dec("t16l16v ordered", &osmo_t16l16v_cfg, true);
test_enc_dec("t16l16v unordered", &osmo_t16l16v_cfg, false);
talloc_free(ctx);
return 0;
}
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