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wlantest: Maintain STA state based on auth/assoc/deauth/disassoc

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This commit is contained in:
Jouni Malinen 2010-11-06 17:55:27 +02:00
parent 422ef7d205
commit d30edf54b8
2 changed files with 284 additions and 3 deletions
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281
wlantest/process.c
View File

@ -167,6 +167,7 @@ static void rx_mgmt_auth(struct wlantest *wt, const u8 *data, size_t len)
const struct ieee80211_mgmt *mgmt; const struct ieee80211_mgmt *mgmt;
struct wlantest_bss *bss; struct wlantest_bss *bss;
struct wlantest_sta *sta; struct wlantest_sta *sta;
u16 alg, trans, status;
mgmt = (const struct ieee80211_mgmt *) data; mgmt = (const struct ieee80211_mgmt *) data;
bss = bss_get(wt, mgmt->bssid); bss = bss_get(wt, mgmt->bssid);
@ -185,12 +186,268 @@ static void rx_mgmt_auth(struct wlantest *wt, const u8 *data, size_t len)
return; return;
} }
alg = le_to_host16(mgmt->u.auth.auth_alg);
trans = le_to_host16(mgmt->u.auth.auth_transaction);
status = le_to_host16(mgmt->u.auth.status_code);
wpa_printf(MSG_DEBUG, "AUTH " MACSTR " -> " MACSTR wpa_printf(MSG_DEBUG, "AUTH " MACSTR " -> " MACSTR
" (alg=%u trans=%u status=%u)", " (alg=%u trans=%u status=%u)",
MAC2STR(mgmt->sa), MAC2STR(mgmt->da), alg, trans, status);
if (alg == 0 && trans == 2 && status == 0) {
if (sta->state == STATE1) {
wpa_printf(MSG_DEBUG, "STA " MACSTR
" moved to State 2 with " MACSTR,
MAC2STR(sta->addr), MAC2STR(bss->bssid));
sta->state = STATE2;
}
}
}
static void rx_mgmt_deauth(struct wlantest *wt, const u8 *data, size_t len)
{
const struct ieee80211_mgmt *mgmt;
struct wlantest_bss *bss;
struct wlantest_sta *sta;
mgmt = (const struct ieee80211_mgmt *) data;
bss = bss_get(wt, mgmt->bssid);
if (bss == NULL)
return;
if (os_memcmp(mgmt->sa, mgmt->bssid, ETH_ALEN) == 0)
sta = sta_get(bss, mgmt->da);
else
sta = sta_get(bss, mgmt->sa);
if (sta == NULL)
return;
if (len < 24 + 2) {
wpa_printf(MSG_INFO, "Too short Deauthentication frame from "
MACSTR, MAC2STR(mgmt->sa));
return;
}
wpa_printf(MSG_DEBUG, "DEAUTH " MACSTR " -> " MACSTR
" (reason=%u)",
MAC2STR(mgmt->sa), MAC2STR(mgmt->da), MAC2STR(mgmt->sa), MAC2STR(mgmt->da),
le_to_host16(mgmt->u.auth.auth_alg), le_to_host16(mgmt->u.deauth.reason_code));
le_to_host16(mgmt->u.auth.auth_transaction),
le_to_host16(mgmt->u.auth.status_code)); if (sta->state != STATE1) {
wpa_printf(MSG_DEBUG, "STA " MACSTR
" moved to State 1 with " MACSTR,
MAC2STR(sta->addr), MAC2STR(bss->bssid));
sta->state = STATE1;
}
}
static void rx_mgmt_assoc_req(struct wlantest *wt, const u8 *data, size_t len)
{
const struct ieee80211_mgmt *mgmt;
struct wlantest_bss *bss;
struct wlantest_sta *sta;
mgmt = (const struct ieee80211_mgmt *) data;
bss = bss_get(wt, mgmt->bssid);
if (bss == NULL)
return;
sta = sta_get(bss, mgmt->sa);
if (sta == NULL)
return;
if (len < 24 + 4) {
wpa_printf(MSG_INFO, "Too short Association Request frame "
"from " MACSTR, MAC2STR(mgmt->sa));
return;
}
wpa_printf(MSG_DEBUG, "ASSOCREQ " MACSTR " -> " MACSTR
" (capab=0x%x listen_int=%u)",
MAC2STR(mgmt->sa), MAC2STR(mgmt->da),
le_to_host16(mgmt->u.assoc_req.capab_info),
le_to_host16(mgmt->u.assoc_req.listen_interval));
}
static void rx_mgmt_assoc_resp(struct wlantest *wt, const u8 *data, size_t len)
{
const struct ieee80211_mgmt *mgmt;
struct wlantest_bss *bss;
struct wlantest_sta *sta;
u16 capab, status, aid;
mgmt = (const struct ieee80211_mgmt *) data;
bss = bss_get(wt, mgmt->bssid);
if (bss == NULL)
return;
sta = sta_get(bss, mgmt->da);
if (sta == NULL)
return;
if (len < 24 + 6) {
wpa_printf(MSG_INFO, "Too short Association Response frame "
"from " MACSTR, MAC2STR(mgmt->sa));
return;
}
capab = le_to_host16(mgmt->u.assoc_resp.capab_info);
status = le_to_host16(mgmt->u.assoc_resp.status_code);
aid = le_to_host16(mgmt->u.assoc_resp.aid);
wpa_printf(MSG_DEBUG, "ASSOCRESP " MACSTR " -> " MACSTR
" (capab=0x%x status=%u aid=%u)",
MAC2STR(mgmt->sa), MAC2STR(mgmt->da), capab, status,
aid & 0x3fff);
if (status)
return;
if ((aid & 0xc000) != 0xc000) {
wpa_printf(MSG_DEBUG, "Two MSBs of the AID were not set to 1 "
"in Association Response from " MACSTR,
MAC2STR(mgmt->sa));
}
sta->aid = aid & 0xc000;
if (sta->state < STATE2) {
wpa_printf(MSG_DEBUG, "STA " MACSTR " was not in State 2 when "
"getting associated", MAC2STR(sta->addr));
}
if (sta->state < STATE3) {
wpa_printf(MSG_DEBUG, "STA " MACSTR
" moved to State 3 with " MACSTR,
MAC2STR(sta->addr), MAC2STR(bss->bssid));
sta->state = STATE3;
}
}
static void rx_mgmt_reassoc_req(struct wlantest *wt, const u8 *data,
size_t len)
{
const struct ieee80211_mgmt *mgmt;
struct wlantest_bss *bss;
struct wlantest_sta *sta;
mgmt = (const struct ieee80211_mgmt *) data;
bss = bss_get(wt, mgmt->bssid);
if (bss == NULL)
return;
sta = sta_get(bss, mgmt->sa);
if (sta == NULL)
return;
if (len < 24 + 4 + ETH_ALEN) {
wpa_printf(MSG_INFO, "Too short Reassociation Request frame "
"from " MACSTR, MAC2STR(mgmt->sa));
return;
}
wpa_printf(MSG_DEBUG, "REASSOCREQ " MACSTR " -> " MACSTR
" (capab=0x%x listen_int=%u current_ap=" MACSTR ")",
MAC2STR(mgmt->sa), MAC2STR(mgmt->da),
le_to_host16(mgmt->u.reassoc_req.capab_info),
le_to_host16(mgmt->u.reassoc_req.listen_interval),
MAC2STR(mgmt->u.reassoc_req.current_ap));
}
static void rx_mgmt_reassoc_resp(struct wlantest *wt, const u8 *data,
size_t len)
{
const struct ieee80211_mgmt *mgmt;
struct wlantest_bss *bss;
struct wlantest_sta *sta;
u16 capab, status, aid;
mgmt = (const struct ieee80211_mgmt *) data;
bss = bss_get(wt, mgmt->bssid);
if (bss == NULL)
return;
sta = sta_get(bss, mgmt->da);
if (sta == NULL)
return;
if (len < 24 + 6) {
wpa_printf(MSG_INFO, "Too short Reassociation Response frame "
"from " MACSTR, MAC2STR(mgmt->sa));
return;
}
capab = le_to_host16(mgmt->u.reassoc_resp.capab_info);
status = le_to_host16(mgmt->u.reassoc_resp.status_code);
aid = le_to_host16(mgmt->u.reassoc_resp.aid);
wpa_printf(MSG_DEBUG, "REASSOCRESP " MACSTR " -> " MACSTR
" (capab=0x%x status=%u aid=%u)",
MAC2STR(mgmt->sa), MAC2STR(mgmt->da), capab, status,
aid & 0x3fff);
if (status)
return;
if ((aid & 0xc000) != 0xc000) {
wpa_printf(MSG_DEBUG, "Two MSBs of the AID were not set to 1 "
"in Reassociation Response from " MACSTR,
MAC2STR(mgmt->sa));
}
sta->aid = aid & 0xc000;
if (sta->state < STATE2) {
wpa_printf(MSG_DEBUG, "STA " MACSTR " was not in State 2 when "
"getting associated", MAC2STR(sta->addr));
}
if (sta->state < STATE3) {
wpa_printf(MSG_DEBUG, "STA " MACSTR
" moved to State 3 with " MACSTR,
MAC2STR(sta->addr), MAC2STR(bss->bssid));
sta->state = STATE3;
}
}
static void rx_mgmt_disassoc(struct wlantest *wt, const u8 *data, size_t len)
{
const struct ieee80211_mgmt *mgmt;
struct wlantest_bss *bss;
struct wlantest_sta *sta;
mgmt = (const struct ieee80211_mgmt *) data;
bss = bss_get(wt, mgmt->bssid);
if (bss == NULL)
return;
if (os_memcmp(mgmt->sa, mgmt->bssid, ETH_ALEN) == 0)
sta = sta_get(bss, mgmt->da);
else
sta = sta_get(bss, mgmt->sa);
if (sta == NULL)
return;
if (len < 24 + 2) {
wpa_printf(MSG_INFO, "Too short Disassociation frame from "
MACSTR, MAC2STR(mgmt->sa));
return;
}
wpa_printf(MSG_DEBUG, "DISASSOC " MACSTR " -> " MACSTR
" (reason=%u)",
MAC2STR(mgmt->sa), MAC2STR(mgmt->da),
le_to_host16(mgmt->u.disassoc.reason_code));
if (sta->state < STATE2) {
wpa_printf(MSG_DEBUG, "STA " MACSTR " was not in State 2 or 3 "
"when getting disassociated", MAC2STR(sta->addr));
}
if (sta->state > STATE2) {
wpa_printf(MSG_DEBUG, "STA " MACSTR
" moved to State 2 with " MACSTR,
MAC2STR(sta->addr), MAC2STR(bss->bssid));
sta->state = STATE2;
}
} }
@ -228,6 +485,24 @@ static void rx_mgmt(struct wlantest *wt, const u8 *data, size_t len)
case WLAN_FC_STYPE_AUTH: case WLAN_FC_STYPE_AUTH:
rx_mgmt_auth(wt, data, len); rx_mgmt_auth(wt, data, len);
break; break;
case WLAN_FC_STYPE_DEAUTH:
rx_mgmt_deauth(wt, data, len);
break;
case WLAN_FC_STYPE_ASSOC_REQ:
rx_mgmt_assoc_req(wt, data, len);
break;
case WLAN_FC_STYPE_ASSOC_RESP:
rx_mgmt_assoc_resp(wt, data, len);
break;
case WLAN_FC_STYPE_REASSOC_REQ:
rx_mgmt_reassoc_req(wt, data, len);
break;
case WLAN_FC_STYPE_REASSOC_RESP:
rx_mgmt_reassoc_resp(wt, data, len);
break;
case WLAN_FC_STYPE_DISASSOC:
rx_mgmt_disassoc(wt, data, len);
break;
} }
} }

6
wlantest/wlantest.h
View File

@ -21,6 +21,12 @@
struct wlantest_sta { struct wlantest_sta {
struct dl_list list; struct dl_list list;
u8 addr[ETH_ALEN]; u8 addr[ETH_ALEN];
enum {
STATE1 /* not authenticated */,
STATE2 /* authenticated */,
STATE3 /* associated */
} state;
u16 aid;
}; };
struct wlantest_bss { struct wlantest_bss {