Question on total_tbtt_count
Ben Greear
greearb at candelatech.com
Sun Jun 2 10:04:28 PDT 2024
Hello,
While rebasing some patches, I noticed that total_tbtt_count wasn't used
as I expected.
Shouldn't it be incremented before tbtt_count is set to 0 below?
static size_t
hostapd_eid_rnr_iface_len(struct hostapd_data *hapd,
struct hostapd_data *reporting_hapd,
size_t *current_len,
struct mbssid_ie_profiles *skip_profiles,
bool mld_update)
{
size_t total_len = 0, len = *current_len;
int tbtt_count, total_tbtt_count = 0;
size_t i, start;
u8 tbtt_info_len = mld_update ? RNR_TBTT_INFO_MLD_LEN :
RNR_TBTT_INFO_LEN;
repeat_rnr_len:
start = 0;
tbtt_count = 0;
while (start < hapd->iface->num_bss) {
if (!len ||
len + RNR_TBTT_HEADER_LEN + tbtt_info_len > 255 ||
tbtt_count >= RNR_TBTT_INFO_COUNT_MAX) {
len = RNR_HEADER_LEN;
total_len += RNR_HEADER_LEN;
tbtt_count = 0;
}
And farther down, I think maybe it should then not be incremented after the loop, but maybe
incremented before this code?
/* This is possible when in the re-built case and no suitable TBTT was
* found. Adjust the length accordingly. */
if (!tbtt_count && total_tbtt_count) {
len -= RNR_TBTT_HEADER_LEN;
total_len -= RNR_TBTT_HEADER_LEN;
}
Thanks,
Ben
--
Ben Greear <greearb at candelatech.com>
Candela Technologies Inc http://www.candelatech.com
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