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Add netfilter payload expression constants for nftables support.

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PiperOrigin-RevId: 662699475
This commit is contained in:
Jayden Nyamiaka
2024-08-13 16:51:24 -07:00
committed by gVisor bot
parent a89389b366
commit f813cc6f7a
1 changed files with 27 additions and 0 deletions
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pkg/abi/linux/nf_tables.go
+27
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@@ -92,3 +92,30 @@ const (
NFT_CMP_GT // greater than
NFT_CMP_GTE // greater than or equal to
)
// Nf table payload expression offset bases.
// Used by the nft payload operations to access appropriate data in the packet.
// These correspond to enum values in include/uapi/linux/netfilter/nf_tables.h.
const (
NFT_PAYLOAD_LL_HEADER = iota // link layer header
NFT_PAYLOAD_NETWORK_HEADER // network header
NFT_PAYLOAD_TRANSPORT_HEADER // transport header
NFT_PAYLOAD_INNER_HEADER // inner header / payload
NFT_PAYLOAD_TUN_HEADER // tunneling protocol header
)
// Nf table payload expression checksum types.
// Used by the nft payload set operation to mark the type of checksum to use.
// These correspond to enum values in include/uapi/linux/netfilter/nf_tables.h.
const (
NFT_PAYLOAD_CSUM_NONE = iota // no checksumming
NFT_PAYLOAD_CSUM_INET // internet checksum (RFC 791)
NFT_PAYLOAD_CSUM_SCTP // CRC-32c, for use in SCTP header (RFC 3309)
)
// Nf table payload expression checksum flags.
// Used by the nft payload set operation to mark the flags for checksumming.
// These correspond to enum values in include/uapi/linux/netfilter/nf_tables.h.
const (
NFT_PAYLOAD_L4CSUM_PSEUDOHDR = (1 << 0) // use pseudoheader for L4 checksum
)