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IP_PATTERN structure (traffic.h)

  • Článek

The IP_PATTERN structure applies a specific pattern or corresponding mask for the IP protocol. The IP_PATTERN structure designation is used by the traffic control interface in the application of packet filters.

Syntax

typedef struct _IP_PATTERN {
  ULONG Reserved1;
  ULONG Reserved2;
  ULONG SrcAddr;
  ULONG DstAddr;
  union {
    struct {
      USHORT s_srcport;
      USHORT s_dstport;
    } S_un_ports;
    struct {
      UCHAR  s_type;
      UCHAR  s_code;
      USHORT filler;
    } S_un_icmp;
    ULONG S_Spi;
  } S_un;
  UCHAR ProtocolId;
  UCHAR Reserved3[3];
} IP_PATTERN, *PIP_PATTERN;

Members

Reserved1

Reserved for future use.

Reserved2

Reserved for future use.

SrcAddr

Source address.

DstAddr

Destination address.

S_un

S_un.S_un_ports

S_un_ports.s_srcport,s_dstport

Source port and destination port.

S_un.S_un_ports.s_srcport

S_un.S_un_ports.s_dstport

S_un.S_un_icmp

S_un_icmp.s_type,s_code

ICMP message type and ICMP message code.

S_un.S_un_icmp.s_type

S_un.S_un_icmp.s_code

S_un.S_un_icmp.filler

S_un.S_Spi

Service provider interface.

ProtocolId

Protocol identifier.

Reserved3[3]

Reserved for future use.

Remarks

The following macros are defined in Traffic.h to make it easier to reference the members of the union:

#define tcSrcPort S_un.S_un_ports.s_srcport
#define tcDstPort S_un.S_un_ports.s_dstport
#define tcIcmpType        S_un.S_un_icmp.s_type
#define tcIcmpCode        S_un.S_un_icmp.s_code
#define tcSpi             S_un.S_Spi

Requirements

Requirement Value
Minimum supported client Windows 2000 Professional [desktop apps only]
Minimum supported server Windows 2000 Server [desktop apps only]
Header traffic.h

See also

FLOWSPEC