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https://github.com/vanhoefm/fragattacks.git
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Change BSS ctrl_iface command to use BSS table instead of scan results
In addition, provide another option for iterating through the BSS entries. The old iteration: "BSS 0", "BSS 1", .. with index number. The new iteration: "BSS FIRST", "BSS NEXT-<prev id>", .. with id fetched from the previous output (id=<id> line).
This commit is contained in:
Jouni Malinen
parent
d4bf8f132a
commit
3a06863296
@ -12,27 +12,28 @@
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* See README and COPYING for more details.
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*/
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#include "includes.h"
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#include "utils/includes.h"
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#include "common.h"
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#include "eloop.h"
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#include "rsn_supp/wpa.h"
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#include "config.h"
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#include "eapol_supp/eapol_supp_sm.h"
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#include "wpa_supplicant_i.h"
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#include "driver_i.h"
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#include "ctrl_iface.h"
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#include "l2_packet/l2_packet.h"
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#include "rsn_supp/preauth.h"
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#include "rsn_supp/pmksa_cache.h"
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#include "utils/common.h"
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#include "utils/eloop.h"
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#include "common/ieee802_11_defs.h"
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#include "common/wpa_ctrl.h"
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#include "eap_peer/eap.h"
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#include "common/ieee802_11_defs.h"
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#include "wps_supplicant.h"
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#include "eapol_supp/eapol_supp_sm.h"
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#include "rsn_supp/wpa.h"
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#include "rsn_supp/preauth.h"
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#include "rsn_supp/pmksa_cache.h"
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#include "l2_packet/l2_packet.h"
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#include "wps/wps.h"
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#include "config.h"
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#include "wpa_supplicant_i.h"
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#include "driver_i.h"
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#include "wps_supplicant.h"
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#include "ibss_rsn.h"
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#include "ap.h"
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#include "notify.h"
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#include "bss.h"
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#include "ctrl_iface.h"
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extern struct wpa_driver_ops *wpa_drivers[];
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@ -762,18 +763,16 @@ static char * wpa_supplicant_ie_txt(char *pos, char *end, const char *proto,
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return pos;
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}
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static char * wpa_supplicant_wps_ie_txt(char *pos, char *end,
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const struct wpa_scan_res *res)
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{
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#ifdef CONFIG_WPS
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struct wpabuf *wps_ie;
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static char * wpa_supplicant_wps_ie_txt_buf(char *pos, char *end,
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struct wpabuf *wps_ie)
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{
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int ret;
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const char *txt;
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wps_ie = wpa_scan_get_vendor_ie_multi(res, WPS_IE_VENDOR_TYPE);
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if (wps_ie == NULL)
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return pos;
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if (wps_is_selected_pbc_registrar(wps_ie))
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txt = "[WPS-PBC]";
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else if (wps_is_selected_pin_registrar(wps_ie))
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@ -785,9 +784,34 @@ static char * wpa_supplicant_wps_ie_txt(char *pos, char *end,
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if (ret >= 0 && ret < end - pos)
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pos += ret;
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wpabuf_free(wps_ie);
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return pos;
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}
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#endif /* CONFIG_WPS */
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static char * wpa_supplicant_wps_ie_txt(char *pos, char *end,
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const struct wpa_scan_res *res)
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{
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#ifdef CONFIG_WPS
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struct wpabuf *wps_ie;
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wps_ie = wpa_scan_get_vendor_ie_multi(res, WPS_IE_VENDOR_TYPE);
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return wpa_supplicant_wps_ie_txt_buf(pos, end, wps_ie);
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#else /* CONFIG_WPS */
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return pos;
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#endif /* CONFIG_WPS */
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}
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static char * wpa_supplicant_wps_ie_txt_bss(char *pos, char *end,
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const struct wpa_bss *bss)
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{
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#ifdef CONFIG_WPS
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struct wpabuf *wps_ie;
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wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
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return wpa_supplicant_wps_ie_txt_buf(pos, end, wps_ie);
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#else /* CONFIG_WPS */
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return pos;
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#endif /* CONFIG_WPS */
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}
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@ -1467,36 +1491,49 @@ static int wpa_supplicant_ctrl_iface_bss(struct wpa_supplicant *wpa_s,
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{
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u8 bssid[ETH_ALEN];
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size_t i;
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struct wpa_scan_results *results;
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struct wpa_scan_res *bss;
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struct wpa_bss *bss;
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int ret;
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char *pos, *end;
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const u8 *ie, *ie2;
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if (wpa_s->scan_res == NULL &&
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wpa_supplicant_get_scan_results(wpa_s) < 0)
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return 0;
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results = wpa_s->scan_res;
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if (results == NULL)
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return 0;
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if (hwaddr_aton(cmd, bssid) == 0) {
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for (i = 0; i < results->num; i++) {
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if (os_memcmp(bssid, results->res[i]->bssid, ETH_ALEN)
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== 0)
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if (os_strcmp(cmd, "FIRST") == 0)
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bss = dl_list_first(&wpa_s->bss, struct wpa_bss, list);
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else if (os_strncmp(cmd, "ID-", 3) == 0) {
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i = atoi(cmd + 3);
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bss = wpa_bss_get_id(wpa_s, i);
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} else if (os_strncmp(cmd, "NEXT-", 5) == 0) {
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i = atoi(cmd + 5);
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bss = wpa_bss_get_id(wpa_s, i);
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if (bss) {
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struct dl_list *next = bss->list_id.next;
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if (next == &wpa_s->bss_id)
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bss = NULL;
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else
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bss = dl_list_entry(next, struct wpa_bss,
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list_id);
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}
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} else if (hwaddr_aton(cmd, bssid) == 0)
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bss = wpa_bss_get_bssid(wpa_s, bssid);
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else {
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struct wpa_bss *tmp;
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i = atoi(cmd);
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bss = NULL;
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dl_list_for_each(tmp, &wpa_s->bss_id, struct wpa_bss, list_id)
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{
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if (i-- == 0) {
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bss = tmp;
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break;
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}
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} else
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i = atoi(cmd);
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}
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}
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if (i >= results->num || results->res[i] == NULL)
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return 0; /* no match found */
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if (bss == NULL)
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return 0;
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bss = results->res[i];
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pos = buf;
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end = buf + buflen;
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ret = os_snprintf(pos, end - pos,
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"id=%u\n"
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"bssid=" MACSTR "\n"
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"freq=%d\n"
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"beacon_int=%d\n"
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@ -1506,6 +1543,7 @@ static int wpa_supplicant_ctrl_iface_bss(struct wpa_supplicant *wpa_s,
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"level=%d\n"
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"tsf=%016llu\n"
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"ie=",
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bss->id,
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MAC2STR(bss->bssid), bss->freq, bss->beacon_int,
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bss->caps, bss->qual, bss->noise, bss->level,
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(unsigned long long) bss->tsf);
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@ -1531,13 +1569,13 @@ static int wpa_supplicant_ctrl_iface_bss(struct wpa_supplicant *wpa_s,
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return pos - buf;
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pos += ret;
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ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
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ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
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if (ie)
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pos = wpa_supplicant_ie_txt(pos, end, "WPA", ie, 2 + ie[1]);
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ie2 = wpa_scan_get_ie(bss, WLAN_EID_RSN);
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ie2 = wpa_bss_get_ie(bss, WLAN_EID_RSN);
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if (ie2)
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pos = wpa_supplicant_ie_txt(pos, end, "WPA2", ie2, 2 + ie2[1]);
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pos = wpa_supplicant_wps_ie_txt(pos, end, bss);
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pos = wpa_supplicant_wps_ie_txt_bss(pos, end, bss);
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if (!ie && !ie2 && bss->caps & IEEE80211_CAP_PRIVACY) {
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ret = os_snprintf(pos, end - pos, "[WEP]");
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if (ret < 0 || ret >= end - pos)
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@ -1556,9 +1594,8 @@ static int wpa_supplicant_ctrl_iface_bss(struct wpa_supplicant *wpa_s,
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return pos - buf;
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pos += ret;
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ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
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ret = os_snprintf(pos, end - pos, "ssid=%s\n",
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ie ? wpa_ssid_txt(ie + 2, ie[1]) : "");
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wpa_ssid_txt(bss->ssid, bss->ssid_len));
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if (ret < 0 || ret >= end - pos)
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return pos - buf;
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pos += ret;
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