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qcacld-3.0: Check priviledge permission for SET_CHANNEL_RANGE

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qcacld-2.0 to qcacld-3.0 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.

Change-Id: I48bcd55bee45203667bcc679db4ad96aa9e04b7c
CRs-Fixed: 930555
This commit is contained in:
Hanumantha Reddy Pothula 2015-11-05 10:59:21 +05:30 • committed by Satish Singh
commit 24c726c6f5
1 changed files with 5 additions and 0 deletions
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5
core/hdd/src/wlan_hdd_hostapd.c
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@ -3517,6 +3517,11 @@ static int wlan_hdd_set_force_acs_ch_range(struct net_device *dev,
hdd_context_t *hdd_ctx = WLAN_HDD_GET_CTX(adapter);
int *value = (int *)extra;
if (!capable(CAP_NET_ADMIN)) {
hddLog(LOGE, FL("permission check failed"));
return -EPERM;
}
if (wlan_hdd_validate_operation_channel(adapter, value[0]) !=
CDF_STATUS_SUCCESS ||
wlan_hdd_validate_operation_channel(adapter, value[1]) !=