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RSN: Add RSNXE new definitions

Browse Source 
IEEE P802.11az/D2.6 defines the following additional capabilities to
RSNXE:

- Secure LTF support
- Secure RTT support
- Protection of range negotiation and measurement management frames.

Add support for advertising the new capabilities.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
master
Ilan Peer 3 years ago committed by Jouni Malinen
parent b07b9387d4
commit d8cd20e37b
8 changed files with 115 additions and 43 deletions
Show Stats Download Patch File Download Diff File

48
src/ap/ieee802_11_shared.c
Unescape Escape View File

@ -1097,29 +1097,45 @@ u8 * hostapd_eid_rsnxe(struct hostapd_data *hapd, u8 *eid, size_t len)
{
u8 *pos = eid;
bool sae_pk = false;
u16 capab = 0;
size_t flen;
if (!(hapd->conf->wpa & WPA_PROTO_RSN))
return eid;
#ifdef CONFIG_SAE_PK
sae_pk = hostapd_sae_pk_in_use(hapd->conf);
#endif /* CONFIG_SAE_PK */
if (!(hapd->conf->wpa & WPA_PROTO_RSN) ||
!wpa_key_mgmt_sae(hapd->conf->wpa_key_mgmt) ||
(hapd->conf->sae_pwe != 1 && hapd->conf->sae_pwe != 2 &&
!hostapd_sae_pw_id_in_use(hapd->conf) && !sae_pk) ||
hapd->conf->sae_pwe == 3 ||
len < 3)
return pos;
*pos++ = WLAN_EID_RSNX;
*pos++ = 1;
/* bits 0-3 = 0 since only one octet of Extended RSN Capabilities is
* used for now */
*pos = BIT(WLAN_RSNX_CAPAB_SAE_H2E);
if (wpa_key_mgmt_sae(hapd->conf->wpa_key_mgmt) &&
(hapd->conf->sae_pwe == 1 || hapd->conf->sae_pwe == 2 ||
hostapd_sae_pw_id_in_use(hapd->conf) || sae_pk) &&
hapd->conf->sae_pwe != 3) {
capab |= BIT(WLAN_RSNX_CAPAB_SAE_H2E);
#ifdef CONFIG_SAE_PK
if (sae_pk)
*pos |= BIT(WLAN_RSNX_CAPAB_SAE_PK);
if (sae_pk)
capab |= BIT(WLAN_RSNX_CAPAB_SAE_PK);
#endif /* CONFIG_SAE_PK */
pos++;
}
if (hapd->iface->drv_flags2 & WPA_DRIVER_FLAGS2_SEC_LTF)
capab |= BIT(WLAN_RSNX_CAPAB_SECURE_LTF - 8);
if (hapd->iface->drv_flags2 & WPA_DRIVER_FLAGS2_SEC_RTT)
capab |= BIT(WLAN_RSNX_CAPAB_SECURE_RTT - 8);
if (hapd->iface->drv_flags2 & WPA_DRIVER_FLAGS2_PROT_RANGE_NEG)
capab |= BIT(WLAN_RSNX_CAPAB_PROT_RANGE_NEG - 8);
flen = (capab & 0xff00) ? 2 : 1;
if (len < 2 + flen || !capab)
return eid; /* no supported extended RSN capabilities */
capab |= flen - 1; /* bit 0-3 = Field length (n - 1) */
*pos++ = WLAN_EID_RSNX;
*pos++ = flen;
*pos++ = capab & 0x00ff;
capab >>= 8;
if (capab)
*pos++ = capab;
return pos;
}

5
src/ap/wpa_auth.h
Unescape Escape View File

@ -257,6 +257,11 @@ struct wpa_auth_config {
#endif /* CONFIG_FILS */
int sae_pwe;
bool sae_pk;
unsigned int secure_ltf:1;
unsigned int secure_rtt:1;
unsigned int prot_range_neg:1;
int owe_ptk_workaround;
u8 transition_disable;
#ifdef CONFIG_DPP2

7
src/ap/wpa_auth_glue.c
Unescape Escape View File

@ -1512,6 +1512,13 @@ int hostapd_setup_wpa(struct hostapd_data *hapd)
else
_conf.extended_key_id = 0;
_conf.secure_ltf =
!!(hapd->iface->drv_flags2 & WPA_DRIVER_FLAGS2_SEC_LTF);
_conf.secure_rtt =
!!(hapd->iface->drv_flags2 & WPA_DRIVER_FLAGS2_SEC_RTT);
_conf.prot_range_neg =
!!(hapd->iface->drv_flags2 & WPA_DRIVER_FLAGS2_PROT_RANGE_NEG);
hapd->wpa_auth = wpa_init(hapd->own_addr, &_conf, &cb, hapd);
if (hapd->wpa_auth == NULL) {
wpa_printf(MSG_ERROR, "WPA initialization failed.");

39
src/ap/wpa_auth_ie.c
Unescape Escape View File

@ -384,23 +384,38 @@ int wpa_write_rsn_ie(struct wpa_auth_config *conf, u8 *buf, size_t len,
int wpa_write_rsnxe(struct wpa_auth_config *conf, u8 *buf, size_t len)
{
u8 *pos = buf;
u16 capab = 0;
size_t flen;
if (conf->sae_pwe != 1 && conf->sae_pwe != 2 && !conf->sae_pk)
return 0; /* no supported extended RSN capabilities */
if (wpa_key_mgmt_sae(conf->wpa_key_mgmt) &&
(conf->sae_pwe == 1 || conf->sae_pwe == 2 || conf->sae_pk)) {
capab |= BIT(WLAN_RSNX_CAPAB_SAE_H2E);
#ifdef CONFIG_SAE_PK
if (conf->sae_pk)
capab |= BIT(WLAN_RSNX_CAPAB_SAE_PK);
#endif /* CONFIG_SAE_PK */
}
if (len < 3)
if (conf->secure_ltf)
capab |= BIT(WLAN_RSNX_CAPAB_SECURE_LTF);
if (conf->secure_rtt)
capab |= BIT(WLAN_RSNX_CAPAB_SECURE_RTT);
if (conf->prot_range_neg)
capab |= BIT(WLAN_RSNX_CAPAB_PROT_RANGE_NEG);
flen = (capab & 0xff00) ? 2 : 1;
if (!capab)
return 0; /* no supported extended RSN capabilities */
if (len < 2 + flen)
return -1;
capab |= flen - 1; /* bit 0-3 = Field length (n - 1) */
*pos++ = WLAN_EID_RSNX;
*pos++ = 1;
/* bits 0-3 = 0 since only one octet of Extended RSN Capabilities is
* used for now */
*pos = BIT(WLAN_RSNX_CAPAB_SAE_H2E);
#ifdef CONFIG_SAE_PK
if (conf->sae_pk)
*pos |= BIT(WLAN_RSNX_CAPAB_SAE_PK);
#endif /* CONFIG_SAE_PK */
pos++;
*pos++ = flen;
*pos++ = capab & 0x00ff;
capab >>= 8;
if (capab)
*pos++ = capab;
return pos - buf;
}

3
src/common/ieee802_11_defs.h
Unescape Escape View File

@ -577,6 +577,9 @@
#define WLAN_RSNX_CAPAB_PROTECTED_TWT 4
#define WLAN_RSNX_CAPAB_SAE_H2E 5
#define WLAN_RSNX_CAPAB_SAE_PK 6
#define WLAN_RSNX_CAPAB_SECURE_LTF 8
#define WLAN_RSNX_CAPAB_SECURE_RTT 9
#define WLAN_RSNX_CAPAB_PROT_RANGE_NEG 10
/* Action frame categories (IEEE Std 802.11-2016, 9.4.1.11, Table 9-76) */
#define WLAN_ACTION_SPECTRUM_MGMT 0

9
src/drivers/driver.h
Unescape Escape View File

@ -1950,6 +1950,15 @@ struct wpa_driver_capa {
#define WPA_DRIVER_FLAGS2_CONTROL_PORT_RX 0x0000000000000001ULL
/** Driver supports TX status reports for EAPOL frames through control port */
#define WPA_DRIVER_FLAGS2_CONTROL_PORT_TX_STATUS 0x0000000000000002ULL
/** Driver supports secure LTF */
#define WPA_DRIVER_FLAGS2_SEC_LTF 0x0000000000000004ULL
/** Driver supports secure RTT measurement exchange */
#define WPA_DRIVER_FLAGS2_SEC_RTT 0x0000000000000008ULL
/**
* Driver supports protection of range negotiation and measurement management
* frames
*/
#define WPA_DRIVER_FLAGS2_PROT_RANGE_NEG 0x0000000000000010ULL
u64 flags2;
#define FULL_AP_CLIENT_STATE_SUPP(drv_flags) \

6
src/rsn_supp/wpa_i.h
Unescape Escape View File

@ -106,7 +106,11 @@ struct wpa_sm {
int mfp; /* 0 = disabled, 1 = optional, 2 = mandatory */
int ocv; /* Operating Channel Validation */
int sae_pwe; /* SAE PWE generation options */
int sae_pk; /* whether SAE-PK is used */
unsigned int sae_pk:1; /* whether SAE-PK is used */
unsigned int secure_ltf:1;
unsigned int secure_rtt:1;
unsigned int prot_range_neg:1;
u8 *assoc_wpa_ie; /* Own WPA/RSN IE from (Re)AssocReq */
size_t assoc_wpa_ie_len;

41
src/rsn_supp/wpa_ie.c
Unescape Escape View File

@ -354,25 +354,38 @@ int wpa_gen_wpa_ie(struct wpa_sm *sm, u8 *wpa_ie, size_t wpa_ie_len)
int wpa_gen_rsnxe(struct wpa_sm *sm, u8 *rsnxe, size_t rsnxe_len)
{
u8 *pos = rsnxe;
u16 capab = 0;
size_t flen;
if (!wpa_key_mgmt_sae(sm->key_mgmt))
return 0; /* SAE not in use */
if (sm->sae_pwe != 1 && sm->sae_pwe != 2 && !sm->sae_pk)
return 0; /* no supported extended RSN capabilities */
if (wpa_key_mgmt_sae(sm->key_mgmt) &&
(sm->sae_pwe == 1 || sm->sae_pwe == 2 || sm->sae_pk)) {
capab |= BIT(WLAN_RSNX_CAPAB_SAE_H2E);
#ifdef CONFIG_SAE_PK
if (sm->sae_pk)
capab |= BIT(WLAN_RSNX_CAPAB_SAE_PK);
#endif /* CONFIG_SAE_PK */
}
if (rsnxe_len < 3)
if (sm->secure_ltf)
capab |= BIT(WLAN_RSNX_CAPAB_SECURE_LTF);
if (sm->secure_rtt)
capab |= BIT(WLAN_RSNX_CAPAB_SECURE_RTT);
if (sm->prot_range_neg)
capab |= BIT(WLAN_RSNX_CAPAB_PROT_RANGE_NEG);
flen = (capab & 0xff00) ? 2 : 1;
if (!capab)
return 0; /* no supported extended RSN capabilities */
if (rsnxe_len < 2 + flen)
return -1;
capab |= flen - 1; /* bit 0-3 = Field length (n - 1) */
*pos++ = WLAN_EID_RSNX;
*pos++ = 1;
/* bits 0-3 = 0 since only one octet of Extended RSN Capabilities is
* used for now */
*pos = BIT(WLAN_RSNX_CAPAB_SAE_H2E);
#ifdef CONFIG_SAE_PK
if (sm->sae_pk)
*pos |= BIT(WLAN_RSNX_CAPAB_SAE_PK);
#endif /* CONFIG_SAE_PK */
pos++;
*pos++ = flen;
*pos++ = capab & 0x00ff;
capab >>= 8;
if (capab)
*pos++ = capab;
return pos - rsnxe;
}

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