diff options
| author | Chia-chi Yeh <chiachi@android.com> | 2011-07-15 15:32:57 -0700 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2011-11-30 21:38:52 -0800 |
| commit | 6da168643910cde533b1e10ca1454fa8fdc0e088 (patch) | |
| tree | 8698cd807f727131816022a4da9fbc4f331f0870 | |
| parent | 577ac660666e3abb76a15ae00e152a2959a76482 (diff) | |
net: Only NET_ADMIN is allowed to fully control TUN interfaces.
Signed-off-by: Chia-chi Yeh <chiachi@android.com>
| -rw-r--r-- | drivers/net/tun.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 71f3d1a35b74..a024708b5704 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -1243,6 +1243,12 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd, int vnet_hdr_sz; int ret; +#ifdef CONFIG_ANDROID_PARANOID_NETWORK + if (cmd != TUNGETIFF && !capable(CAP_NET_ADMIN)) { + return -EPERM; + } +#endif + if (cmd == TUNSETIFF || _IOC_TYPE(cmd) == 0x89) if (copy_from_user(&ifr, argp, ifreq_len)) return -EFAULT; |