commit 3ff2a0b6b7aa01f8b8d161d914267d44b7c4a324
author Madan Mohan Koyyalamudi <c_mkoyya@qca.qualcomm.com> Mon Oct 15 14:33:46 2012 -0700
committer Jeff Johnson <jjohnson@qca.qualcomm.com> Fri Nov 30 14:45:31 2012 -0800
tree 737d1e9d686bc55cb5856d73f88fd644eb309659
parent 3ce3da62d871d880789482dd0a6961b9934feb0b

wlan: Add support for SoftAP Random BSSID

 There is a new requirement that when the driver is in SoftAP mode that
 it create and use a randomized BSSID of the form "02:1A:11:Fx:xx:xx".
 Add logic to implement this feature, enabled via a new cfg.ini
 configuration item.

 CR-FIxed: 408851

Change-Id: Idf89638c052ce029ade9e48a71c980f8beccdb96

CORE/HDD/inc/wlan_hdd_cfg.h

diff --git a/CORE/HDD/inc/wlan_hdd_cfg.h b/CORE/HDD/inc/wlan_hdd_cfg.h
index de7678e..e681718 100644
--- a/CORE/HDD/inc/wlan_hdd_cfg.h
+++ b/CORE/HDD/inc/wlan_hdd_cfg.h
@@ -389,6 +389,11 @@
 #define CFG_AP_COUNTRY_CODE_MAX                "USI"
 #define CFG_AP_COUNTRY_CODE_DEFAULT            "FFF"
 
+#define CFG_AP_ENABLE_RANDOM_BSSID_NAME            "gEnableApRandomBssid"
+#define CFG_AP_ENABLE_RANDOM_BSSID_MIN             ( 0 )
+#define CFG_AP_ENABLE_RANDOM_BSSID_MAX             ( 1 )
+#define CFG_AP_ENABLE_RANDOM_BSSID_DEFAULT         ( 0 )
+
 #define CFG_AP_ENABLE_PROTECTION_MODE_NAME            "gEnableApProt"
 #define CFG_AP_ENABLE_PROTECTION_MODE_MIN             ( 0 )
 #define CFG_AP_ENABLE_PROTECTION_MODE_MAX             ( 1 )
@@ -1421,6 +1426,7 @@
 
 #ifdef WLAN_SOFTAP_FEATURE
    v_BOOL_t      apUapsdEnabled;
+   v_BOOL_t      apRandomBssidEnabled;
    v_BOOL_t      apProtEnabled;
    v_U16_t       apProtection;
    v_BOOL_t      apOBSSProtEnabled;

CORE/HDD/src/wlan_hdd_cfg.c

diff --git a/CORE/HDD/src/wlan_hdd_cfg.c b/CORE/HDD/src/wlan_hdd_cfg.c
index 10eacc3..1369616 100644
--- a/CORE/HDD/src/wlan_hdd_cfg.c
+++ b/CORE/HDD/src/wlan_hdd_cfg.c
@@ -462,6 +462,13 @@
                         VAR_FLAGS_OPTIONAL,
                         (void *)CFG_AP_COUNTRY_CODE_DEFAULT ),
 
+   REG_VARIABLE( CFG_AP_ENABLE_RANDOM_BSSID_NAME, WLAN_PARAM_Integer,
+                        hdd_config_t, apRandomBssidEnabled,
+                        VAR_FLAGS_OPTIONAL | VAR_FLAGS_RANGE_CHECK_ASSUME_DEFAULT,
+                        CFG_AP_ENABLE_RANDOM_BSSID_DEFAULT,
+                        CFG_AP_ENABLE_RANDOM_BSSID_MIN,
+                        CFG_AP_ENABLE_RANDOM_BSSID_MAX ),
+
    REG_VARIABLE( CFG_AP_ENABLE_PROTECTION_MODE_NAME, WLAN_PARAM_Integer,
                         hdd_config_t, apProtEnabled, 
                         VAR_FLAGS_OPTIONAL | VAR_FLAGS_RANGE_CHECK_ASSUME_DEFAULT,

CORE/HDD/src/wlan_hdd_cfg80211.c

diff --git a/CORE/HDD/src/wlan_hdd_cfg80211.c b/CORE/HDD/src/wlan_hdd_cfg80211.c
index 9f544b8..6b5f51b 100644
--- a/CORE/HDD/src/wlan_hdd_cfg80211.c
+++ b/CORE/HDD/src/wlan_hdd_cfg80211.c
@@ -2102,6 +2102,28 @@
                     }
                 }
 
+                if ((WLAN_HDD_SOFTAP == pAdapter->device_mode) &&
+                    (pConfig->apRandomBssidEnabled))
+                {
+                    /* To meet Android requirements create a randomized
+                       MAC address of the form 02:1A:11:Fx:xx:xx */
+                    get_random_bytes(&ndev->dev_addr[3], 3);
+                    ndev->dev_addr[0] = 0x02;
+                    ndev->dev_addr[1] = 0x1A;
+                    ndev->dev_addr[2] = 0x11;
+                    ndev->dev_addr[3] |= 0xF0;
+                    memcpy(pAdapter->macAddressCurrent.bytes, ndev->dev_addr,
+                           VOS_MAC_ADDR_SIZE);
+                    pr_info("wlan: Generated HotSpot BSSID "
+                            "%02x:%02x:%02x:%02x:%02x:%02x\n",
+                            ndev->dev_addr[0],
+                            ndev->dev_addr[1],
+                            ndev->dev_addr[2],
+                            ndev->dev_addr[3],
+                            ndev->dev_addr[4],
+                            ndev->dev_addr[5]);
+                }
+
                 hdd_set_ap_ops( pAdapter->dev );
 
                 status = hdd_init_ap_mode(pAdapter);