我有一个特定的驱动程序(防火墙驱动程序),我设法用 delphi 加载它,但我不知道如何在我的程序中调用他的函数。驱动程序上此功能的规范如下: 可以使用 DeviceIoControl (DDoSflt) IoControl 代码调用防火墙功能(DeviceIoControl 需要)如下:
0x2220c0 = IOCTL_START
Input: none
Output: none
加载驱动后,调用该函数安装防火墙钩子。
0x2220c4 = IOCTL_STOP
Input: none
Output: none
调用此函数可禁用防火墙而不卸载它。
0x2220c8 = IOCTL_DDOSADDIP
Input: a DWORD containing an IP address
Output: none
此功能通知防火墙正在进行 DDoS 攻击并将 IP 添加到 DDoS 过滤器。在调用 IOCTL_DDOSSTOP 之前,将过滤来自 DDoS 过滤器中的 IP 的所有流量。
0x2220cc = IOCTL_DDOSSTOP
Input: none
Output: none
此功能通知防火墙 DDoS 攻击已停止,该功能将删除 DDoS 过滤器。
0x2220d0 = IOCTL_BAN0
Input: two DWORDs containing an IP range
Output: none
此函数设置 IP 范围的禁令。
0x2220d4 = IOCTL_GETFLT
Input: none
Output: DWORD
此函数返回从 DDoS 过滤器中找到的 IP 发送的过滤 TCP/SYN 数据包的数量。2.防火墙使用的结构
2.1。防火墙参数信息
typedef struct _FirewallParametersInfo{
WORD pcapFlags; // bit 0 = WinPCap is enabled, bit 1 = detection of adapters was completed (this WORD is not used by version 1.03 of DDoSflt)
WORD pcapAdapters; // mask of enabled / disabled adapters used by WinPCap procedures (this WORD is not used by version 1.03 of DDoSflt)
DWORD pcapTimer; // timeout for capturing packets using WinPCap procedures (not used by version 1.03 of DDoSflt)
BYTE pcapSyn; // maximum number of TCP/SYN packets per second allowed from one IP
BYTE pcapUdp; // maximum number of UDP packets per second allowed from one IP
BYTE pcapIcmp; // maximum number of ICMP packets per second allowed from one IP
BYTE firewallFlags; // bit 0 = firewall is registered
// bit 1 = firewall is started
// bit 2 = maximum SYN/second on hub's registered ports will be checked
// bit 3 = maximum SYN/second on unregistered ports will be checked
// bit 4 = ICMP traffic will be blocked
// bit 5 = TCP/RST packets will not be sent (will be filtered)
// bit 6 = if flood is detected, the application will call the firewall to set a _ban0_ (not used by firewall)
// bit 7 = if flood is detected, a notification message will be sent in opchat (not used by firewall)
WORD hubSyn; // maximum SYN rate allowed for one of registered hub's ports
WORD otherSyn; // maximum SYN rate allowed for non-registered ports
} FirewallParametersInfo;
2.2. 端口信息
typedef struct _port_info{
WORD port; // port value in network byte order
int synRate; // maximum number of TCP/SYN packets per second allowed from all users
} port_info;
这是 ...