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scan: parse password identifier/exclusive bits

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These bits are used to communicate to the station that SAE password
identifiers are used or required.
This commit is contained in:
James Prestwood 2023-12-05 07:46:38 -08:00 committed by Denis Kenzior
parent 195d1f8720
commit 2d26304663
2 changed files with 19 additions and 3 deletions
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20
src/scan.c
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@ -1404,10 +1404,24 @@ static bool scan_parse_bss_information_elements(struct scan_bss *bss,
* Currently only Proxy ARP bit (12) is checked, and if * Currently only Proxy ARP bit (12) is checked, and if
* not found, this is not a fatal error. * not found, this is not a fatal error.
*/ */
if (iter.len < 2) if (iter.len >= 2)
break;
bss->proxy_arp = test_bit(iter.data, 12); bss->proxy_arp = test_bit(iter.data, 12);
/*
* 802.11-2020 Table 9-153
*
* The spec merely mentions the "exclusive" bit and
* doesn't enforce a requirement to check it anywhere.
* But if set it would indicate the AP will only accept
* auths when a password ID is used so store this in
* order to fail early if no ID is set.
*/
if (iter.len >= 11) {
bss->sae_pw_id_used = test_bit(iter.data, 81);
bss->sae_pw_id_exclusive =
test_bit(iter.data, 82);
}
} }
} }

2
src/scan.h
View File

@ -88,6 +88,8 @@ struct scan_bss {
uint8_t cost_level : 3; uint8_t cost_level : 3;
uint8_t cost_flags : 4; uint8_t cost_flags : 4;
bool dpp_configurator : 1; bool dpp_configurator : 1;
bool sae_pw_id_used : 1;
bool sae_pw_id_exclusive : 1;
}; };
struct scan_parameters { struct scan_parameters {