Files
go-nftables-client/nft.go

62 lines
1.2 KiB
Go

package nft
import (
"errors"
"git.kor-elf.net/kor-elf-shield/go-nftables-client/internal/command"
"git.kor-elf.net/kor-elf-shield/go-nftables-client/internal/table"
)
// NFT A client for working with nftables
type NFT interface {
// Clear clears all rules.
//
// This command is equivalent to:
// nft flush ruleset
Clear() error
// Table returns an API for working with tables.
Table() table.API
}
type nft struct {
command command.NFT
table table.API
}
// New Returns a client for working with nftables.
// Searches for nft in paths: nft, /usr/sbin/nft, /sbin/nft
func New() (NFT, error) {
paths := []string{"nft", "/usr/sbin/nft", "/sbin/nft"}
for _, path := range paths {
nftClient, err := NewWithPath(path)
if err == nil {
return nftClient, nil
}
}
return nil, errors.New("nft not found")
}
// NewWithPath Returns the client for working with nftables with its path specified.
func NewWithPath(path string) (NFT, error) {
nftCommand, err := command.New(path)
if err != nil {
return nil, err
}
return &nft{
command: nftCommand,
table: table.New(nftCommand),
}, nil
}
func (n *nft) Clear() error {
args := []string{"flush", "ruleset"}
return n.command.Run(args...)
}
func (n *nft) Table() table.API {
return n.table
}