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package cmd
import (
"bytes"
"fmt"
verify "github.com/axtloss/fsverify/core"
"github.com/axtloss/fsverify/verifysetup/core"
"github.com/spf13/cobra"
"math"
"os"
)
func NewSetupCommand() *cobra.Command {
cmd := &cobra.Command{
Use: "setup",
Short: "Set up fsverify",
RunE: SetupCommand,
SilenceUsage: true,
}
return cmd
}
func SetupCommand(_ *cobra.Command, args []string) error {
if len(args) != 1 {
return fmt.Errorf("Usage: verifysetup setup [partition]")
}
fmt.Println("Using partition: ", args[0])
disk, err := os.Open(args[0])
if err != nil {
return err
}
defer disk.Close()
fmt.Println("Reading from disk")
diskInfo, err := disk.Stat()
if err != nil {
return err
}
diskSize := diskInfo.Size()
blockCount := math.Floor(float64(diskSize / 4000))
lastBlockSize := float64(diskSize) - blockCount*4000.0
fmt.Println(diskSize)
fmt.Println(blockCount)
fmt.Println(lastBlockSize)
node := verify.Node{}
block := make([]byte, 4000)
diskBytes := make([]byte, diskSize)
_, err = disk.Read(diskBytes)
if err != nil {
return err
}
reader := bytes.NewReader(diskBytes)
for i := 0; i < int(blockCount); i++ {
reader = bytes.NewReader(diskBytes)
block, err = core.ReadBlock(i*4000, (i*4000)+4000, reader)
if err != nil {
return err
}
node, err = core.CreateNode(i*4000, (i*4000)+4000, block, &node)
if err != nil {
return err
}
fmt.Println(node)
err = core.AddNode(node, nil, "./fsverify.db")
}
finalBlock, err := core.ReadBlock(int(blockCount*4000), int((blockCount*4000)+lastBlockSize), reader)
if err != nil {
return err
}
finalNode, err := core.CreateNode(int(blockCount*4000), int((blockCount*4000)+lastBlockSize), finalBlock, &node)
if err != nil {
return err
}
fmt.Println(finalNode)
err = core.AddNode(finalNode, nil, "./fsverify.db")
if err != nil {
return err
}
signature, err := core.SignDatabase("./fsverify.db", "./minisign/")
if err != nil {
return err
}
fmt.Println(string(signature))
return nil
}
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