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Bluetooth: MPL: Modify parse_search to use bt_data_parse

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Modify the implementation of parse_search to use a
net_buf_simple and bt_data_parse to parse the LTV
search structure.

Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
This commit is contained in:
Emil Gydesen 2023-06-02 12:11:47 +02:00 • committed by Anas Nashif
commit f282ce90cc
1 changed files with 25 additions and 27 deletions
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52
subsys/bluetooth/audio/mpl.c
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@ -2622,43 +2622,41 @@ uint32_t get_commands_supported(void)
}
#ifdef CONFIG_BT_MPL_OBJECTS
static bool parse_sci(struct bt_data *data, void *user_data)
{
LOG_DBG("type: %u len %u", data->type, data->data_len);
LOG_HEXDUMP_DBG(data->data, data->data_len, "param:");
if (data->type < MEDIA_PROXY_SEARCH_TYPE_TRACK_NAME ||
data->type > MEDIA_PROXY_SEARCH_TYPE_ONLY_GROUPS) {
LOG_DBG("Invalid search type: %u", data->type);
return false;
}
return true;
}
static void parse_search(const struct mpl_search *search)
{
uint8_t index = 0;
struct mpl_sci sci;
uint8_t sci_num = 0;
bool search_failed = false;
if (search->len > SEARCH_LEN_MAX) {
LOG_WRN("Search too long (%d) - aborting", search->len);
search_failed = true;
} else {
LOG_DBG("Parsing %d octets search", search->len);
uint8_t search_ltv[SEARCH_LEN_MAX];
struct net_buf_simple buf;
while (search->len - index > 0) {
sci.len = (uint8_t)search->search[index++];
if (sci.len < SEARCH_SCI_LEN_MIN) {
LOG_WRN("Invalid length field - too small");
search_failed = true;
break;
}
if (sci.len > (search->len - index)) {
LOG_WRN("Incomplete search control item");
search_failed = true;
break;
}
sci.type = (uint8_t)search->search[index++];
if (sci.type < MEDIA_PROXY_SEARCH_TYPE_TRACK_NAME ||
sci.type > MEDIA_PROXY_SEARCH_TYPE_ONLY_GROUPS) {
search_failed = true;
break;
}
(void)memcpy(&sci.param, &search->search[index], sci.len - 1);
index += sci.len - 1;
/* Copy so that we can parse it using the net_buf_simple when search is const */
memcpy(search_ltv, search->search, search->len);
LOG_DBG("SCI # %d: type: %d", sci_num, sci.type);
LOG_HEXDUMP_DBG(sci.param, sci.len - 1, "param:");
sci_num++;
net_buf_simple_init_with_data(&buf, search_ltv, search->len);
bt_data_parse(&buf, parse_sci, NULL);
if (buf.len != 0U) {
search_failed = true;
}
}