TechPanelGM/kernel_xiaomi_sm8250
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ANDROID: net: paranoid: Only NET_ADMIN is allowed to fully control TUN interfaces.

Browse Source 
Signed-off-by: Chia-chi Yeh <chiachi@android.com>
This commit is contained in:
Chia-chi Yeh
2011-07-15 15:32:57 -07:00
committed by Amit Pundir
parent 336442ab5c
commit 6ac0eb6d0d
1 changed files with 6 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/net/tun.c
View File

@@ -2879,6 +2879,12 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd,
int ret; int ret;
bool do_notify = false; bool do_notify = false;
#ifdef CONFIG_ANDROID_PARANOID_NETWORK
if (cmd != TUNGETIFF && !capable(CAP_NET_ADMIN)) {
return -EPERM;
}
#endif
if (cmd == TUNSETIFF || cmd == TUNSETQUEUE || if (cmd == TUNSETIFF || cmd == TUNSETQUEUE ||
(_IOC_TYPE(cmd) == SOCK_IOC_TYPE && cmd != SIOCGSKNS)) { (_IOC_TYPE(cmd) == SOCK_IOC_TYPE && cmd != SIOCGSKNS)) {
if (copy_from_user(&ifr, argp, ifreq_len)) if (copy_from_user(&ifr, argp, ifreq_len))