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Add a drop_sa command to allow 802.11w testing

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This drops PTK and PMK without notifying the AP.
This commit is contained in:
Jouni Malinen 2010-03-29 15:42:04 -07:00 committed by Jouni Malinen
parent 358c3691cf
commit 32d5295f9d
4 changed files with 51 additions and 0 deletions
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11
src/rsn_supp/wpa.c
View file

@ -2379,3 +2379,14 @@ int wpa_sm_pmksa_cache_list(struct wpa_sm *sm, char *buf, size_t len)
return -1;
#endif /* CONFIG_NO_WPA2 */
}
void wpa_sm_drop_sa(struct wpa_sm *sm)
{
wpa_printf(MSG_DEBUG, "WPA: Clear old PMK and PTK");
sm->ptk_set = 0;
sm->tptk_set = 0;
os_memset(sm->pmk, 0, sizeof(sm->pmk));
os_memset(&sm->ptk, 0, sizeof(sm->ptk));
os_memset(&sm->tptk, 0, sizeof(sm->tptk));
}

5
src/rsn_supp/wpa.h
View file

@ -123,6 +123,7 @@ int wpa_sm_rx_eapol(struct wpa_sm *sm, const u8 *src_addr,
const u8 *buf, size_t len);
int wpa_sm_parse_own_wpa_ie(struct wpa_sm *sm, struct wpa_ie_data *data);
int wpa_sm_pmksa_cache_list(struct wpa_sm *sm, char *buf, size_t len);
void wpa_sm_drop_sa(struct wpa_sm *sm);
#else /* CONFIG_NO_WPA */
@ -260,6 +261,10 @@ static inline int wpa_sm_pmksa_cache_list(struct wpa_sm *sm, char *buf,
return -1;
}
static inline void wpa_sm_drop_sa(struct wpa_sm *sm)
{
}
#endif /* CONFIG_NO_WPA */
#ifdef CONFIG_PEERKEY

27
wpa_supplicant/ctrl_iface.c
View file

@ -1615,6 +1615,31 @@ static int wpa_supplicant_ctrl_iface_ap_scan(
}
static void wpa_supplicant_ctrl_iface_drop_sa(struct wpa_supplicant *wpa_s)
{
u8 *bcast = (u8 *) "\xff\xff\xff\xff\xff\xff";
wpa_printf(MSG_DEBUG, "Dropping SA without deauthentication");
/* MLME-DELETEKEYS.request */
wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 0, 0, NULL, 0, NULL, 0);
wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 1, 0, NULL, 0, NULL, 0);
wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 2, 0, NULL, 0, NULL, 0);
wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 3, 0, NULL, 0, NULL, 0);
#ifdef CONFIG_IEEE80211W
wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 4, 0, NULL, 0, NULL, 0);
wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 5, 0, NULL, 0, NULL, 0);
#endif /* CONFIG_IEEE80211W */
wpa_drv_set_key(wpa_s, WPA_ALG_NONE, wpa_s->bssid, 0, 0, NULL, 0, NULL,
0);
/* MLME-SETPROTECTION.request(None) */
wpa_drv_mlme_setprotection(wpa_s, wpa_s->bssid,
MLME_SETPROTECTION_PROTECT_TYPE_NONE,
MLME_SETPROTECTION_KEY_TYPE_PAIRWISE);
wpa_sm_drop_sa(wpa_s->wpa);
}
char * wpa_supplicant_ctrl_iface_process(struct wpa_supplicant *wpa_s,
char *buf, size_t *resp_len)
{
@ -1818,6 +1843,8 @@ char * wpa_supplicant_ctrl_iface_process(struct wpa_supplicant *wpa_s,
wpas_notify_suspend(wpa_s->global);
} else if (os_strcmp(buf, "RESUME") == 0) {
wpas_notify_resume(wpa_s->global);
} else if (os_strcmp(buf, "DROP_SA") == 0) {
wpa_supplicant_ctrl_iface_drop_sa(wpa_s);
} else {
os_memcpy(reply, "UNKNOWN COMMAND\n", 16);
reply_len = 16;

8
wpa_supplicant/wpa_cli.c
View file

@ -1434,6 +1434,12 @@ static int wpa_cli_cmd_resume(struct wpa_ctrl *ctrl, int argc, char *argv[])
}
static int wpa_cli_cmd_drop_sa(struct wpa_ctrl *ctrl, int argc, char *argv[])
{
return wpa_ctrl_command(ctrl, "DROP_SA");
}
enum wpa_cli_cmd_flags {
cli_cmd_flag_none = 0x00,
cli_cmd_flag_sensitive = 0x01
@ -1632,6 +1638,8 @@ static struct wpa_cli_cmd wpa_cli_commands[] = {
"= notification of suspend/hibernate" },
{ "resume", wpa_cli_cmd_resume, cli_cmd_flag_none,
"= notification of resume/thaw" },
{ "drop_sa", wpa_cli_cmd_drop_sa, cli_cmd_flag_none,
"= drop SA without deauth/disassoc (test command)" },
{ NULL, NULL, cli_cmd_flag_none, NULL }
};