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package cmd
import (
"bufio"
"fmt"
"github.com/axtloss/fsverify/core"
"github.com/spf13/cobra"
"os"
)
func NewVerifyCommand() *cobra.Command {
cmd := &cobra.Command{
Use: "verify",
Short: "Verify the root filesystem based on the given verification",
RunE: ValidateCommand,
SilenceUsage: true,
}
return cmd
}
func ValidateCommand(_ *cobra.Command, args []string) error {
/*entrynode := core.Node{
BlockStart: 0,
BlockEnd: 4000,
BlockSum: "32fd1c42b66cbf1b2f0f1a65a3cb08f3d7845eac7f43e13b2b5b5f9f837e3346",
PrevNodeSum: "Entrypoint",
}
err := core.AddNode(entrynode, nil)
if err != nil {
return err
}
entryHash, err := entrynode.GetHash()
if err != nil {
return err
}
nextNode := core.Node{
BlockStart: 4000,
BlockEnd: 8000,
BlockSum: "3d73ff8cb154dcfe8cdae426021f679e541b47dbe14e8426e6b1cd3f2c57017c",
PrevNodeSum: entryHash,
}
err = core.AddNode(nextNode, nil)
if err != nil {
return err
}*/
header, err := core.ReadHeader("/dev/sda")
fmt.Printf("Magic Number: %d\n", header.MagicNumber)
fmt.Printf("Signature: %s", header.Signature)
fmt.Printf("FsSize: %d\n", header.FilesystemSize)
fmt.Printf("FsUnit: %d\n", header.FilesystemUnit)
fmt.Printf("Table Size: %d\n", header.TableSize)
fmt.Printf("Table Size Unit: %d\n", header.TableUnit)
if err != nil {
return err
}
dbfile, err := core.ReadDB("/dev/sda")
if err != nil {
return err
}
fmt.Println("DBFILE: ", dbfile)
db, err := core.OpenDB(dbfile, true)
if err != nil {
return err
}
getnode, err := core.GetNode("Entrypoint", db)
if err != nil {
return err
}
fmt.Println(getnode)
fmt.Println("----")
key, err := core.ReadKey()
if err != nil {
return err
}
fmt.Println("Key: " + key)
verified, err := core.VerifySignature(key, header.Signature, dbfile)
if err != nil {
return err
} else if !verified {
return fmt.Errorf("Signature verification failed\n")
} else {
fmt.Println("Signature verification success!")
}
fmt.Println("----")
disk, err := os.Open("./partition.raw")
reader := bufio.NewReader(disk)
part, err := core.ReadBlock(getnode, reader)
if err != nil {
return err
}
diskInfo, err := disk.Stat()
node, err := core.GetNode("Entrypoint", db)
if err != nil {
return err
}
hash, err := core.CalculateBlockHash(part)
fmt.Println(hash)
if err != nil {
return err
}
err = core.VerifyBlock(part, getnode)
if err != nil {
fmt.Println("fail")
return err
}
fmt.Printf("Block '%s' ranging from %d to %d matches!\n", getnode.PrevNodeSum, getnode.BlockStart, getnode.BlockEnd)
fmt.Println(node)
for int64(core.TotalReadBlocks) < diskInfo.Size() {
nodeSum, err := node.GetHash()
if err != nil {
return err
}
node, err := core.GetNode(nodeSum, db)
if err != nil {
return err
}
fmt.Println("----")
fmt.Println(node)
part, err := core.ReadBlock(node, reader)
if err != nil {
return err
}
hash, err := core.CalculateBlockHash(part)
fmt.Println(hash)
if err != nil {
return err
}
err = core.VerifyBlock(part, node)
if err != nil {
fmt.Println("fail")
return err
}
fmt.Printf("Block '%s' ranging from %d to %d matches!\n", node.PrevNodeSum, node.BlockStart, node.BlockEnd)
}
return nil
}
|
