NET_PACKET_GSO - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers

// gsotypes.h

typedef struct _NET_PACKET_GSO {
  union {
    struct {
      UINT32 Mss : 20;
      UINT32 Reserved0 : 12;
    } TCP;
    struct {
      UINT32 Mss : 20;
      UINT32 Reserved0 : 12;
    } UDP;
  } DUMMYUNIONNAME;
} NET_PACKET_GSO;
View the official Windows Driver Kit DDI reference

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Windows Driver Kit DDI reference (ns-gsotypes-net_packet_gso)

Description

The NET_PACKET_GSO structure contains Generic Segmentation Offload (GSO) information for a packet.

Members

`DUMMYUNIONNAME`

A union that contains the TCP and UDP member.

`DUMMYUNIONNAME.TCP`

A structure that holds the TCP GSO information.

`DUMMYUNIONNAME.TCP.Mss`

The maximum segment size (MSS) for TCP segments.

`DUMMYUNIONNAME.TCP.Reserved0`

Reserved for system use. Clients must not read or write this member.

`DUMMYUNIONNAME.UDP`

A structure that holds the UDP GSO information.

`DUMMYUNIONNAME.UDP.Mss`

The MSS for UDP segments.

`DUMMYUNIONNAME.UDP.Reserved0`

Reserved for system use. Clients must not read or write this member.

Remarks

Client drivers can obtain this structure for a packet by calling NetExtensionGetPacketGso.

See also

Generic Segmentation Offload (GSO)

Packet descriptors and extensions

NetExtensionGetPacketGso

View the official Windows Driver Kit DDI reference

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