Add Mounts module to collect /system mount information

Author: besendorf

modules/modules.go

@@ -32,6 +32,7 @@ func List() []Module {
 		NewSELinux(),
 		NewEnvironment(),
 		NewRootBinaries(),
+		NewMounts(),
 		NewLogcat(),
 		NewLogs(),
 		NewTemp(),

modules/mounts.go

@@ -0,0 +1,76 @@
+// androidqf - Android Quick Forensics
+// Copyright (c) 2021-2023 Claudio Guarnieri.
+// Use of this software is governed by the MVT License 1.1 that can be found at
+//   https://license.mvt.re/1.1/
+
+package modules
+
+import (
+	"slices"
+	"path/filepath"
+	"strings"
+
+	"github.com/mvt-project/androidqf/acquisition"
+	"github.com/mvt-project/androidqf/adb"
+	"github.com/mvt-project/androidqf/log"
+)
+
+type Mounts struct {
+	StoragePath string
+}
+
+func NewMounts() *Mounts {
+	return &Mounts{}
+}
+
+func (m *Mounts) Name() string {
+	return "mounts"
+}
+
+func (m *Mounts) InitStorage(storagePath string) error {
+	m.StoragePath = storagePath
+	return nil
+}
+
+func (m *Mounts) Run(acq *acquisition.Acquisition, fast bool) error {
+	log.Info("Collecting mount information")
+
+	var mountsData []string
+
+	// Run "mount | grep '/system'"
+	log.Debug("Running: mount | grep '/system'")
+	out1, err1 := adb.Client.Shell("mount | grep '/system'")
+	if err1 == nil && out1 != "" {
+		lines := strings.Split(strings.TrimSpace(out1), "\n")
+		for _, line := range lines {
+			if strings.TrimSpace(line) != "" {
+				mountsData = append(mountsData, strings.TrimSpace(line))
+			}
+		}
+	} else {
+		log.Debug("mount | grep '/system' command failed or returned empty result")
+	}
+
+	// Run "cat /proc/mounts | grep '/system'"
+	log.Debug("Running: cat /proc/mounts | grep '/system'")
+	out2, err2 := adb.Client.Shell("cat /proc/mounts | grep '/system'")
+	if err2 == nil && out2 != "" {
+		lines := strings.Split(strings.TrimSpace(out2), "\n")
+		for _, line := range lines {
+			if strings.TrimSpace(line) != "" {
+				trimmedLine := strings.TrimSpace(line)
+				// Avoid duplicates
+				found := slices.Contains(mountsData, trimmedLine)
+				if !found {
+					mountsData = append(mountsData, trimmedLine)
+				}
+			}
+		}
+	} else {
+		log.Debug("cat /proc/mounts | grep '/system' command failed or returned empty result")
+	}
+
+	log.Debugf("Found %d mount entries", len(mountsData))
+
+	return saveCommandOutputJson(filepath.Join(m.StoragePath, "mounts.json"), &mountsData)
+}