函数源码

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source File:security\safesetid\securityfs.c Create Date:2022-07-27 21:50:56
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static ssize_t safesetid_file_write(struct file *file,
                    const char __user *buf,
                    size_t len,
                    loff_t *ppos)
{
    if (!file_ns_capable(file, &init_user_ns, CAP_MAC_ADMIN))
        return -EPERM;
 
    if (*ppos != 0)
        return -EINVAL;
 
    return handle_policy_update(file, buf, len);
}