Files
2026-02-05 19:14:25 -08:00

104 lines
3.0 KiB
Go

package shellcodeencoders
import (
"fmt"
"sort"
"strings"
"github.com/bishopfox/sliver/client/console"
"github.com/bishopfox/sliver/protobuf/clientpb"
"github.com/bishopfox/sliver/protobuf/commonpb"
"github.com/rsteube/carapace"
)
var shellcodeEncoderNameToEnum = map[string]clientpb.ShellcodeEncoder{
"shikata_ga_nai": clientpb.ShellcodeEncoder_SHIKATA_GA_NAI,
"xor": clientpb.ShellcodeEncoder_XOR,
"xor_dynamic": clientpb.ShellcodeEncoder_XOR_DYNAMIC,
}
func normalizeShellcodeEncoderName(name string) string {
normalized := strings.ToLower(strings.TrimSpace(name))
normalized = strings.ReplaceAll(normalized, "-", "_")
return normalized
}
func normalizeShellcodeArch(arch string) string {
normalized := strings.ToLower(strings.TrimSpace(arch))
switch normalized {
case "amd64", "x64", "x86_64":
return "amd64"
case "386", "x86", "i386":
return "386"
case "arm64", "aarch64":
return "arm64"
default:
return normalized
}
}
func shellcodeEncoderEnum(name string) (clientpb.ShellcodeEncoder, bool) {
normalized := normalizeShellcodeEncoderName(name)
encoder, ok := shellcodeEncoderNameToEnum[normalized]
return encoder, ok
}
func fetchShellcodeEncoderMap(con *console.SliverClient) (*clientpb.ShellcodeEncoderMap, error) {
grpcCtx, cancel := con.GrpcContext(nil)
defer cancel()
return con.Rpc.ShellcodeEncoderMap(grpcCtx, &commonpb.Empty{})
}
// ShellcodeEncoderNameCompleter returns available encoder names with supported arches.
func ShellcodeEncoderNameCompleter(con *console.SliverClient) carapace.Action {
return carapace.ActionCallback(func(c carapace.Context) carapace.Action {
encoderMap, err := fetchShellcodeEncoderMap(con)
if err != nil {
return carapace.ActionMessage("failed to fetch shellcode encoders: %s", err.Error())
}
nameArchs := map[string][]string{}
for arch, archMap := range encoderMap.GetEncoders() {
if archMap == nil {
continue
}
for name := range archMap.GetEncoders() {
nameArchs[name] = append(nameArchs[name], arch)
}
}
names := make([]string, 0, len(nameArchs))
for name := range nameArchs {
names = append(names, name)
}
sort.Strings(names)
results := []string{}
for _, name := range names {
arches := nameArchs[name]
sort.Strings(arches)
desc := fmt.Sprintf("(%s)", strings.Join(arches, ", "))
results = append(results, name, desc)
}
return carapace.ActionValuesDescribed(results...).Tag("shellcode encoders")
})
}
// ShellcodeEncoderArchCompleter returns available architectures.
func ShellcodeEncoderArchCompleter(con *console.SliverClient) carapace.Action {
return carapace.ActionCallback(func(c carapace.Context) carapace.Action {
encoderMap, err := fetchShellcodeEncoderMap(con)
if err != nil {
return carapace.ActionMessage("failed to fetch shellcode encoders: %s", err.Error())
}
arches := make([]string, 0, len(encoderMap.GetEncoders()))
for arch := range encoderMap.GetEncoders() {
arches = append(arches, arch)
}
sort.Strings(arches)
return carapace.ActionValues(arches...).Tag("shellcode architectures")
})
}