linsk/cmd/run.go
2023-08-29 10:00:12 +01:00

87 lines
2.5 KiB
Go

package cmd
import (
"context"
"fmt"
"log/slog"
"net"
"os"
"github.com/AlexSSD7/linsk/vm"
"github.com/sethvargo/go-password/password"
"github.com/spf13/cobra"
)
var runCmd = &cobra.Command{
Use: "run",
// TODO: Fill this
// Short: "",
Args: cobra.ExactArgs(3),
Run: func(cmd *cobra.Command, args []string) {
vmMountDevName := args[1]
fsType := args[2]
ftpPassivePortCount := uint16(9)
networkSharePort, err := getClosestAvailPortWithSubsequent(9000, 10)
if err != nil {
slog.Error("Failed to get closest available host port for network file share", "error", err)
os.Exit(1)
}
ports := []vm.PortForwardingRule{{
HostIP: net.ParseIP("127.0.0.1"), // TODO: Make this changeable.
HostPort: networkSharePort,
VMPort: 21,
}}
for i := uint16(0); i < ftpPassivePortCount; i++ {
p := networkSharePort + 1 + i
ports = append(ports, vm.PortForwardingRule{
HostIP: net.ParseIP("127.0.0.1"), // TODO: Make this changeable.
HostPort: p,
VMPort: p,
})
}
// TODO: `slog` library prints entire stack traces for errors which makes reading errors challenging.
os.Exit(runVM(args[0], func(ctx context.Context, i *vm.VM, fm *vm.FileManager) int {
err := fm.Mount(vmMountDevName, vm.MountOptions{
FSType: fsType,
LUKS: luksFlag,
})
if err != nil {
slog.Error("Failed to mount the disk inside the VM", "error", err)
return 1
}
sharePWD, err := password.Generate(16, 10, 0, false, false)
if err != nil {
slog.Error("Failed to generate ephemeral password for network file share", "error", err)
return 1
}
shareURI := "ftp://linsk:" + sharePWD + "@localhost:" + fmt.Sprint(networkSharePort)
fmt.Fprintf(os.Stderr, "================\n[Network File Share Config]\nThe network file share was started. Please use the credentials below to connect to the file server.\n\nType: FTP\nServer Address: ftp://localhost:%v\nUsername: linsk\nPassword: %v\n\nShare URI: %v\n================\n", networkSharePort, sharePWD, shareURI)
err = fm.StartFTP([]byte(sharePWD), networkSharePort+1, ftpPassivePortCount)
if err != nil {
slog.Error("Failed to start FTP server", "error", err)
return 1
}
slog.Info("Started the network share successfully", "type", "ftp")
<-ctx.Done()
return 0
}, ports, unrestrictedNetworkingFlag))
},
}
var luksFlag bool
func init() {
runCmd.Flags().BoolVarP(&luksFlag, "luks", "l", false, "Use cryptsetup to open a LUKS volume (password will be prompted)")
}