// ndis.h

typedef enum _IPSEC_OFFLOAD_V2_OPERATION {
  IPsecOffloadV2Ah,
  IPsecOffloadV2Esp,
  IPsecOffloadV2Max
} IPSEC_OFFLOAD_V2_OPERATION, *PIPSEC_OFFLOAD_V2_OPERATION;
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Windows Driver Kit DDI reference (ne-ndis-_ipsec_offload_v2_operation)

_IPSEC_OFFLOAD_V2_OPERATION enumeration

Description

[The IPsec Task Offload feature is deprecated and should not be used.]

The IPSEC_OFFLOAD_V2_OPERATION enumeration specifies the IPsec operation for which a security association (SA) is used.

Constants

`IPsecOffloadV2Ah`

The SA is used for authentication (integrity checking).

`IPsecOffloadV2Esp`

The SA is used for encryption/decryption (confidentiality).

`IPsecOffloadV2Max`

Reserved for NDIS.

Remarks

The IPSEC_OFFLOAD_V2_OPERATION enumeration specifies the operation for which an SA is used in the Operation member of the IPSEC_OFFLOAD_V2_SECURITY_ASSOCIATION structure.

IPSEC_OFFLOAD_V2_OPERATION - NtDoc