From ca7c085fb70861a55d9d3a46de012a3e0998ca61 Mon Sep 17 00:00:00 2001 From: Amarnath Hullur Subramanyam Date: Wed, 28 Oct 2015 21:27:11 -0700 Subject: wlan:Check priviledge permission for SET_CHANNEL_RANGE prima to qcacld-2.0 propagation. Kernel assumes all SET IOCTL commands are assigned with even numbers. But in our WLAN driver, some SET IOCTLS are assigned with odd numbers. This leads kernel fail to check, for some SET IOCTLs, whether user has the right permission to do SET operation. Hence, in driver, before processing SET_CHANNEL_RANGE IOCTL, making sure user task has right permission to process the command. CRs-Fixed: 930555 Git-commit: bcb1abfd803c6bb98bad35228d7c4f85b754836d Git-repo: https://www.codeaurora.org/cgit/quic/la/platform/vendor/qcom-opensource/wlan/prima/ Bug: 25344453 Signed-off-by: Amarnath Hullur Subramanyam --- drivers/staging/qcacld-2.0/CORE/HDD/src/wlan_hdd_wext.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/staging/qcacld-2.0/CORE/HDD/src/wlan_hdd_wext.c b/drivers/staging/qcacld-2.0/CORE/HDD/src/wlan_hdd_wext.c index 31205f3..1b8346d0 100644 --- a/drivers/staging/qcacld-2.0/CORE/HDD/src/wlan_hdd_wext.c +++ b/drivers/staging/qcacld-2.0/CORE/HDD/src/wlan_hdd_wext.c @@ -3336,6 +3336,13 @@ static int iw_softap_set_channel_range( struct net_device *dev, tHalHandle hHal = WLAN_HDD_GET_HAL_CTX(pHostapdAdapter); hdd_context_t *pHddCtx = WLAN_HDD_GET_CTX(pHostapdAdapter); + if (!capable(CAP_NET_ADMIN)) + { + VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR, + FL("permission check failed")); + return -EPERM; + } + status = WLANSAP_SetChannelRange(hHal, startChannel, endChannel, band); if (VOS_STATUS_SUCCESS != status) -- cgit v1.1