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Restore permanent MAC address on the FLUSH command

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Clear previously used random MAC address on the FLUSH command if
mac_addr setting has been disabled.

Signed-off-by: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2021-02-21 17:22:37 +02:00
parent 39fac5abd1
commit f03580e319
3 changed files with 22 additions and 11 deletions
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2
wpa_supplicant/ctrl_iface.c
View file

@ -8572,6 +8572,8 @@ static void wpa_supplicant_ctrl_iface_flush(struct wpa_supplicant *wpa_s)
wpas_pasn_auth_stop(wpa_s); wpas_pasn_auth_stop(wpa_s);
#endif /* CONFIG_PASN */ #endif /* CONFIG_PASN */
if (wpa_s->mac_addr_changed && wpa_s->conf->mac_addr == 0)
wpas_restore_permanent_mac_addr(wpa_s);
} }

30
wpa_supplicant/wpa_supplicant.c
View file

@ -2145,6 +2145,24 @@ static void wpa_s_clear_sae_rejected(struct wpa_supplicant *wpa_s)
} }
int wpas_restore_permanent_mac_addr(struct wpa_supplicant *wpa_s)
{
if (wpa_drv_set_mac_addr(wpa_s, NULL) < 0) {
wpa_msg(wpa_s, MSG_INFO,
"Could not restore permanent MAC address");
return -1;
}
wpa_s->mac_addr_changed = 0;
if (wpa_supplicant_update_mac_addr(wpa_s) < 0) {
wpa_msg(wpa_s, MSG_INFO,
"Could not update MAC address information");
return -1;
}
wpa_msg(wpa_s, MSG_DEBUG, "Using permanent MAC address");
return 0;
}
static void wpas_start_assoc_cb(struct wpa_radio_work *work, int deinit); static void wpas_start_assoc_cb(struct wpa_radio_work *work, int deinit);
/** /**
@ -2205,18 +2223,8 @@ void wpa_supplicant_associate(struct wpa_supplicant *wpa_s,
return; return;
wpa_sm_pmksa_cache_flush(wpa_s->wpa, ssid); wpa_sm_pmksa_cache_flush(wpa_s->wpa, ssid);
} else if (rand_style == 0 && wpa_s->mac_addr_changed) { } else if (rand_style == 0 && wpa_s->mac_addr_changed) {
if (wpa_drv_set_mac_addr(wpa_s, NULL) < 0) { if (wpas_restore_permanent_mac_addr(wpa_s) < 0)
wpa_msg(wpa_s, MSG_INFO,
"Could not restore permanent MAC address");
return; return;
}
wpa_s->mac_addr_changed = 0;
if (wpa_supplicant_update_mac_addr(wpa_s) < 0) {
wpa_msg(wpa_s, MSG_INFO,
"Could not update MAC address information");
return;
}
wpa_msg(wpa_s, MSG_DEBUG, "Using permanent MAC address");
} }
wpa_s->last_ssid = ssid; wpa_s->last_ssid = ssid;

1
wpa_supplicant/wpa_supplicant_i.h
View file

@ -1425,6 +1425,7 @@ int wpa_supplicant_update_bridge_ifname(struct wpa_supplicant *wpa_s,
int wpa_supplicant_set_suites(struct wpa_supplicant *wpa_s, int wpa_supplicant_set_suites(struct wpa_supplicant *wpa_s,
struct wpa_bss *bss, struct wpa_ssid *ssid, struct wpa_bss *bss, struct wpa_ssid *ssid,
u8 *wpa_ie, size_t *wpa_ie_len); u8 *wpa_ie, size_t *wpa_ie_len);
int wpas_restore_permanent_mac_addr(struct wpa_supplicant *wpa_s);
void wpa_supplicant_associate(struct wpa_supplicant *wpa_s, void wpa_supplicant_associate(struct wpa_supplicant *wpa_s,
struct wpa_bss *bss, struct wpa_bss *bss,
struct wpa_ssid *ssid); struct wpa_ssid *ssid);