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wiphy: handle FILS AKMs

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wiphy_select_akm needed to be updated to take a flag, which can be
set to true if there are known reauth keys for this connection. If
we have reauth keys, and FILS is available we will choose it.
This commit is contained in:
James Prestwood 2019-04-19 12:59:03 -07:00 committed by Denis Kenzior
parent 0ffc5af09c
commit bc7b12d1a4
3 changed files with 14 additions and 3 deletions
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2
src/station.c
View File

@ -507,7 +507,7 @@ static int station_build_handshake_rsn(struct handshake_state *hs,
memset(&bss_info, 0, sizeof(bss_info)); memset(&bss_info, 0, sizeof(bss_info));
scan_bss_get_rsn_info(bss, &bss_info); scan_bss_get_rsn_info(bss, &bss_info);
info.akm_suites = wiphy_select_akm(wiphy, bss); info.akm_suites = wiphy_select_akm(wiphy, bss, false);
/* /*
* Special case for OWE. With OWE we still need to build up the * Special case for OWE. With OWE we still need to build up the

12
src/wiphy.c
View File

@ -95,7 +95,8 @@ enum ie_rsn_cipher_suite wiphy_select_cipher(struct wiphy *wiphy, uint16_t mask)
} }
enum ie_rsn_akm_suite wiphy_select_akm(struct wiphy *wiphy, enum ie_rsn_akm_suite wiphy_select_akm(struct wiphy *wiphy,
struct scan_bss *bss) struct scan_bss *bss,
bool fils_capable_hint)
{ {
struct ie_rsn_info info; struct ie_rsn_info info;
enum security security; enum security security;
@ -110,6 +111,15 @@ enum ie_rsn_akm_suite wiphy_select_akm(struct wiphy *wiphy,
* for fast transitions. Otherwise use SHA256 version if present. * for fast transitions. Otherwise use SHA256 version if present.
*/ */
if (security == SECURITY_8021X) { if (security == SECURITY_8021X) {
if (wiphy_has_feature(wiphy, NL80211_EXT_FEATURE_FILS_STA) &&
fils_capable_hint) {
if (info.akm_suites & IE_RSN_AKM_SUITE_FILS_SHA384)
return IE_RSN_AKM_SUITE_FILS_SHA384;
if (info.akm_suites & IE_RSN_AKM_SUITE_FILS_SHA256)
return IE_RSN_AKM_SUITE_FILS_SHA256;
}
if ((info.akm_suites & IE_RSN_AKM_SUITE_FT_OVER_8021X) && if ((info.akm_suites & IE_RSN_AKM_SUITE_FT_OVER_8021X) &&
bss->rsne && bss->mde_present) bss->rsne && bss->mde_present)
return IE_RSN_AKM_SUITE_FT_OVER_8021X; return IE_RSN_AKM_SUITE_FT_OVER_8021X;

3
src/wiphy.h
View File

@ -40,7 +40,8 @@ typedef void (*wiphy_destroy_func_t)(void *user_data);
enum ie_rsn_cipher_suite wiphy_select_cipher(struct wiphy *wiphy, enum ie_rsn_cipher_suite wiphy_select_cipher(struct wiphy *wiphy,
uint16_t mask); uint16_t mask);
enum ie_rsn_akm_suite wiphy_select_akm(struct wiphy *wiphy, enum ie_rsn_akm_suite wiphy_select_akm(struct wiphy *wiphy,
struct scan_bss *bss); struct scan_bss *bss,
bool fils_capable_hint);
bool wiphy_parse_id_and_name(struct l_genl_attr *attr, uint32_t *out_id, bool wiphy_parse_id_and_name(struct l_genl_attr *attr, uint32_t *out_id,
const char **out_name); const char **out_name);