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WNM: Add candidate list to BSS transition query

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Add an option to configure a candidate list to BSS transition query
("list" as the second argument to WNM_BSS_QUERY). The candidate list is
built from the available scan results. If no updated scan results (< 10
sec) are available, the command fails.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
This commit is contained in:
Avraham Stern 2016-02-15 16:53:43 +02:00 committed by Jouni Malinen
parent 84d1c0fd5a
commit 9a493fab73
4 changed files with 27 additions and 10 deletions
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21
wpa_supplicant/ctrl_iface.c
View File

@ -6724,14 +6724,27 @@ static int wpas_ctrl_iface_wnm_sleep(struct wpa_supplicant *wpa_s, char *cmd)
static int wpas_ctrl_iface_wnm_bss_query(struct wpa_supplicant *wpa_s, char *cmd)
{
int query_reason;
int query_reason, list = 0;
query_reason = atoi(cmd);
wpa_printf(MSG_DEBUG, "CTRL_IFACE: WNM_BSS_QUERY query_reason=%d",
query_reason);
cmd = os_strchr(cmd, ' ');
if (cmd) {
cmd++;
if (os_strncmp(cmd, "list", 4) == 0) {
list = 1;
} else {
wpa_printf(MSG_DEBUG, "WNM Query: Invalid option %s",
cmd);
return -1;
}
}
return wnm_send_bss_transition_mgmt_query(wpa_s, query_reason);
wpa_printf(MSG_DEBUG,
"CTRL_IFACE: WNM_BSS_QUERY query_reason=%d%s",
query_reason, list ? " candidate list" : "");
return wnm_send_bss_transition_mgmt_query(wpa_s, query_reason, list);
}
#endif /* CONFIG_WNM */

12
wpa_supplicant/wnm_sta.c
View File

@ -1165,16 +1165,17 @@ static void ieee802_11_rx_bss_trans_mgmt_req(struct wpa_supplicant *wpa_s,
int wnm_send_bss_transition_mgmt_query(struct wpa_supplicant *wpa_s,
u8 query_reason)
u8 query_reason, int cand_list)
{
u8 buf[1000], *pos;
u8 buf[2000], *pos;
struct ieee80211_mgmt *mgmt;
size_t len;
int ret;
wpa_printf(MSG_DEBUG, "WNM: Send BSS Transition Management Query to "
MACSTR " query_reason=%u",
MAC2STR(wpa_s->bssid), query_reason);
MACSTR " query_reason=%u%s",
MAC2STR(wpa_s->bssid), query_reason,
cand_list ? " candidate list" : "");
mgmt = (struct ieee80211_mgmt *) buf;
os_memset(&buf, 0, sizeof(buf));
@ -1189,6 +1190,9 @@ int wnm_send_bss_transition_mgmt_query(struct wpa_supplicant *wpa_s,
mgmt->u.action.u.bss_tm_query.query_reason = query_reason;
pos = mgmt->u.action.u.bss_tm_query.variable;
if (cand_list)
pos += wnm_add_cand_list(wpa_s, pos, buf + sizeof(buf) - pos);
len = pos - (u8 *) &mgmt->u.action.category;
ret = wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,

2
wpa_supplicant/wnm_sta.h
View File

@ -56,7 +56,7 @@ void ieee802_11_rx_wnm_action(struct wpa_supplicant *wpa_s,
const struct ieee80211_mgmt *mgmt, size_t len);
int wnm_send_bss_transition_mgmt_query(struct wpa_supplicant *wpa_s,
u8 query_reason);
u8 query_reason, int cand_list);
void wnm_deallocate_memory(struct wpa_supplicant *wpa_s);

2
wpa_supplicant/wpa_cli.c
View File

@ -3418,7 +3418,7 @@ static const struct wpa_cli_cmd wpa_cli_commands[] = {
{ "wnm_sleep", wpa_cli_cmd_wnm_sleep, NULL, cli_cmd_flag_none,
"<enter/exit> [interval=#] = enter/exit WNM-Sleep mode" },
{ "wnm_bss_query", wpa_cli_cmd_wnm_bss_query, NULL, cli_cmd_flag_none,
"<query reason> = Send BSS Transition Management Query" },
"<query reason> [list] = Send BSS Transition Management Query" },
#endif /* CONFIG_WNM */
{ "raw", wpa_cli_cmd_raw, NULL, cli_cmd_flag_sensitive,
"<params..> = Sent unprocessed command" },