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| author | Jouni Malinen <jouni@qca.qualcomm.com> | 2013-10-18 16:24:52 +0530 |
|---|---|---|
| committer | Rashmi Ramanna <rashmi@codeaurora.org> | 2013-10-18 16:28:09 +0530 |
| commit | ec9327ed080998bd7e9910cbadcf4735d660b83c (patch) | |
| tree | 23e9d276cdad9decfe230d78bcf094023ad42bc8 | |
| parent | c7f6e283ecbed797898aabf00263fd667a568ad8 (diff) | |
| download | android_external_wpa_supplicant_8-ec9327ed080998bd7e9910cbadcf4735d660b83c.tar.gz android_external_wpa_supplicant_8-ec9327ed080998bd7e9910cbadcf4735d660b83c.tar.bz2 android_external_wpa_supplicant_8-ec9327ed080998bd7e9910cbadcf4735d660b83c.zip | |
P2P: Do not drop P2P IEs from BSS table on non-P2P scans
This could happen when non-P2P station interface runs a scan without P2P
IE in the Probe Request frame. P2P GO would reply to that with a Probe
Response that does not include P2P IE. Do not update the IEs in this BSS
entry to avoid such loss of information that may be needed for P2P
operations to determine group information.
Change-Id: I2af1f4487a358da57b885ff63e879aaea4fd2508
CRs-Fixed: 535523
Git-commit: ff57398fcab817374dac975aaab3eef5bf64f381
Git-repo: git://w1.fi/srv/git/hostap.git
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
| -rw-r--r-- | wpa_supplicant/bss.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/wpa_supplicant/bss.c b/wpa_supplicant/bss.c index ec640b5f..caec1bae 100644 --- a/wpa_supplicant/bss.c +++ b/wpa_supplicant/bss.c @@ -501,6 +501,22 @@ wpa_bss_update(struct wpa_supplicant *wpa_s, struct wpa_bss *bss, wpa_bss_copy_res(bss, res, fetch_time); /* Move the entry to the end of the list */ dl_list_del(&bss->list); +#ifdef CONFIG_P2P + if (wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) && + !wpa_scan_get_vendor_ie(res, P2P_IE_VENDOR_TYPE)) { + /* + * This can happen when non-P2P station interface runs a scan + * without P2P IE in the Probe Request frame. P2P GO would reply + * to that with a Probe Response that does not include P2P IE. + * Do not update the IEs in this BSS entry to avoid such loss of + * information that may be needed for P2P operations to + * determine group information. + */ + wpa_dbg(wpa_s, MSG_DEBUG, "BSS: Do not update scan IEs for " + MACSTR " since that would remove P2P IE information", + MAC2STR(bss->bssid)); + } else +#endif /* CONFIG_P2P */ if (bss->ie_len + bss->beacon_ie_len >= res->ie_len + res->beacon_ie_len) { os_memcpy(bss + 1, res + 1, res->ie_len + res->beacon_ie_len); |