#!/bin/bash

# LockKnife Bootloader Security & Firmware Analysis Module
# Provides bootloader assessment and firmware extraction capabilities

# Bootloader security submenu
bootloader_security_menu() {
    local device_serial="$1"

    while true; do
        echo
        echo "Bootloader Security Assessment"
        echo "=============================="
        echo "1. Bootloader Status Check"
        echo "2. Bootloader Vulnerability Scan"
        echo "3. OEM Unlock Status"
        echo "4. Bootloader Unlock Attempt"
        echo "5. Boot Image Analysis"
        echo "6. Recovery Image Analysis"
        echo "7. Fastboot Security Check"
        echo "8. Bootloader Security Report"
        echo "0. Back to Main Menu"
        echo

        read -r -p "Choice: " choice

        case $choice in
            1) bootloader_status_check "$device_serial" ;;
            2) bootloader_vulnerability_scan "$device_serial" ;;
            3) oem_unlock_status "$device_serial" ;;
            4) bootloader_unlock_attempt "$device_serial" ;;
            5) boot_image_analysis "$device_serial" ;;
            6) recovery_image_analysis "$device_serial" ;;
            7) fastboot_security_check "$device_serial" ;;
            8) bootloader_security_report "$device_serial" ;;
            0) return 0 ;;
            *) log "ERROR" "Invalid choice" ;;
        esac
    done
}

# Bootloader status check
bootloader_status_check() {
    local device_serial="$1"

    log "INFO" "Checking bootloader status"

    local output_file="$OUTPUT_DIR/bootloader_status_$(date +%Y%m%d_%H%M%S).txt"

    {
        echo "# LockKnife Bootloader Status Report"
        echo "# Generated: $(date)"
        echo "# Device: $device_serial"
        echo ""

        # Check bootloader version
        echo "## Bootloader Information"
        local bootloader_version
        bootloader_version=$(execute_shell_cmd "$device_serial" "getprop ro.bootloader")
        echo "Bootloader Version: ${bootloader_version:-Unknown}"

        local boot_serial
        boot_serial=$(execute_shell_cmd "$device_serial" "getprop ro.boot.serialno")
        echo "Boot Serial: ${boot_serial:-Unknown}"

        # Check bootloader lock status
        echo ""
        echo "## Bootloader Lock Status"
        local lock_status
        lock_status=$(execute_shell_cmd "$device_serial" "getprop ro.boot.verifiedbootstate")

        case "$lock_status" in
            "green")
                echo "✅ VERIFIED: Bootloader is locked and verified"
                echo "Status: All boot components verified"
                ;;
            "yellow")
                echo "⚠️ WARNING: Bootloader has custom modifications"
                echo "Status: Some boot components modified but verified"
                ;;
            "orange")
                echo "🚨 CRITICAL: Bootloader integrity compromised"
                echo "Status: Boot components failed verification"
                ;;
            "red")
                echo "❌ FATAL: Bootloader severely compromised"
                echo "Status: Device integrity completely compromised"
                ;;
            *)
                echo "❓ UNKNOWN: Unable to determine bootloader status"
                echo "Status: $lock_status"
                ;;
        esac

        # Check secure boot
        echo ""
        echo "## Secure Boot Status"
        local secure_boot
        secure_boot=$(execute_shell_cmd "$device_serial" "getprop ro.boot.secureboot")

        if [[ "$secure_boot" = "1" ]]; then
            echo "✅ SECURE BOOT: Enabled"
            echo "Status: Hardware-based boot verification active"
        else
            echo "❌ SECURE BOOT: Disabled or not supported"
            echo "Status: Boot verification not enforced"
        fi

        # Check dm-verity
        echo ""
        echo "## DM-Verity Status"
        local dm_verity
        dm_verity=$(execute_shell_cmd "$device_serial" "getprop ro.boot.veritymode")

        if [[ "$dm_verity" = "enforcing" ]]; then
            echo "✅ DM-VERITY: Enforcing mode"
            echo "Status: File system integrity protected"
        elif [[ "$dm_verity" = "logging" ]]; then
            echo "⚠️ DM-VERITY: Logging mode"
            echo "Status: Integrity violations logged but not blocked"
        else
            echo "❌ DM-VERITY: Disabled"
            echo "Status: File system integrity not protected"
        fi

        # Check for root detection
        echo ""
        echo "## Root Detection"
        local root_check
        root_check=$(execute_shell_cmd "$device_serial" "getprop ro.boot.warranty_bit")

        if [[ "$root_check" = "0" ]]; then
            echo "✅ WARRANTY: Intact"
            echo "Status: No root modifications detected"
        else
            echo "⚠️ WARRANTY: Void"
            echo "Status: Root modifications may have been detected"
        fi

    } > "$output_file"

    log "SUCCESS" "Bootloader status check completed. Results saved to $output_file"
}

# Bootloader vulnerability scan
bootloader_vulnerability_scan() {
    local device_serial="$1"

    log "INFO" "Scanning bootloader for known vulnerabilities"

    local output_file="$OUTPUT_DIR/bootloader_vulns_$(date +%Y%m%d_%H%M%S).txt"

    {
        echo "# LockKnife Bootloader Vulnerability Scan"
        echo "# Generated: $(date)"
        echo "# Device: $device_serial"
        echo ""

        # Get device information
        local bootloader_ver
        bootloader_ver=$(execute_shell_cmd "$device_serial" "getprop ro.bootloader")
        local android_ver
        android_ver=$(execute_shell_cmd "$device_serial" "getprop ro.build.version.release")
        local security_patch
        security_patch=$(execute_shell_cmd "$device_serial" "getprop ro.build.version.security_patch")

        echo "## Device Information"
        echo "Bootloader Version: $bootloader_ver"
        echo "Android Version: $android_ver"
        echo "Security Patch Level: $security_patch"
        echo ""

        # Vulnerability assessment
        echo "## Vulnerability Assessment"
        local vuln_count=0
        local vulnerabilities=""

        # Check for outdated bootloader
        if [[ -n "$bootloader_ver" ]]; then
            # This is a simplified check - in reality, you'd need a database of known vulnerable versions
            echo "ℹ️ Bootloader version analysis requires manufacturer-specific database"
            echo "   Manual verification recommended against vendor security bulletins"
        fi

        # Check for unlocked bootloader
        local lock_status
        lock_status=$(execute_shell_cmd "$device_serial" "getprop ro.boot.verifiedbootstate")
        if [[ "$lock_status" = "orange" || "$lock_status" = "red" ]]; then
            ((vuln_count++))
            vulnerabilities="${vulnerabilities}Bootloader unlocked/modified, "
            echo "🚨 CRITICAL: Bootloader is unlocked or modified"
        fi

        # Check for disabled secure boot
        local secure_boot
        secure_boot=$(execute_shell_cmd "$device_serial" "getprop ro.boot.secureboot")
        if [[ "$secure_boot" != "1" ]]; then
            ((vuln_count++))
            vulnerabilities="${vulnerabilities}Secure boot disabled, "
            echo "⚠️ HIGH: Secure boot is disabled"
        fi

        # Check for disabled dm-verity
        local dm_verity
        dm_verity=$(execute_shell_cmd "$device_serial" "getprop ro.boot.veritymode")
        if [[ "$dm_verity" != "enforcing" ]]; then
            ((vuln_count++))
            vulnerabilities="${vulnerabilities}DM-Verity not enforcing, "
            echo "⚠️ HIGH: DM-Verity integrity protection disabled"
        fi

        # Check for old security patch
        if [[ -n "$security_patch" ]]; then
            local patch_date
            patch_date=$(date -d "$security_patch" +%s 2>/dev/null || echo "0")
            local current_date
            current_date=$(date +%s)
            local days_old=$(( (current_date - patch_date) / 86400 ))

            if [[ $days_old -gt 90 ]]; then
                ((vuln_count++))
                vulnerabilities="${vulnerabilities}Outdated security patch (${days_old} days old), "
                echo "⚠️ MEDIUM: Security patch is $days_old days old"
            fi
        fi

        echo ""
        echo "## Results Summary"
        echo "Vulnerabilities Found: $vuln_count"

        if [[ $vuln_count -gt 0 ]]; then
            echo "Issues Detected:"
            echo "${vulnerabilities%, }"
            echo ""
            echo "## Risk Assessment"
            if [[ $vuln_count -ge 3 ]]; then
                echo "🚨 CRITICAL RISK: Multiple bootloader vulnerabilities"
            elif [[ $vuln_count -ge 2 ]]; then
                echo "⚠️ HIGH RISK: Significant bootloader issues"
            else
                echo "⚠️ MEDIUM RISK: Bootloader vulnerabilities present"
            fi
        else
            echo "✅ LOW RISK: No significant bootloader vulnerabilities detected"
        fi

    } > "$output_file"

    log "SUCCESS" "Bootloader vulnerability scan completed. $vuln_count vulnerabilities found. Results saved to $output_file"
}

# OEM unlock status
oem_unlock_status() {
    local device_serial="$1"

    log "INFO" "Checking OEM unlock status"

    local output_file="$OUTPUT_DIR/oem_unlock_status_$(date +%Y%m%d_%H%M%S).txt"

    {
        echo "# LockKnife OEM Unlock Status Report"
        echo "# Generated: $(date)"
        echo "# Device: $device_serial"
        echo ""

        # Check OEM unlock setting
        echo "## OEM Unlock Status"
        local oem_unlock
        oem_unlock=$(execute_shell_cmd "$device_serial" "getprop sys.oem_unlock_allowed")

        if [[ "$oem_unlock" = "1" ]]; then
            echo "✅ OEM UNLOCK: Allowed"
            echo "Status: Device can be bootloader unlocked"
            echo "Note: OEM unlocking may void warranty"
        elif [[ "$oem_unlock" = "0" ]]; then
            echo "❌ OEM UNLOCK: Not allowed"
            echo "Status: Bootloader unlock prevented by manufacturer"
            echo "Note: Some devices may still be unlockable via exploits"
        else
            echo "❓ OEM UNLOCK: Unknown status"
            echo "Status: Unable to determine OEM unlock capability"
        fi

        # Check bootloader unlock status
        echo ""
        echo "## Bootloader Unlock Status"
        local bootloader_unlocked
        bootloader_unlocked=$(execute_shell_cmd "$device_serial" "getprop ro.boot.flash.locked")

        if [[ "$bootloader_unlocked" = "0" ]]; then
            echo "⚠️ BOOTLOADER: Unlocked"
            echo "Status: Bootloader has been unlocked"
            echo "Security Impact: Reduced device security"
        elif [[ "$bootloader_unlocked" = "1" ]]; then
            echo "✅ BOOTLOADER: Locked"
            echo "Status: Bootloader is in locked state"
            echo "Security Impact: Standard security protection active"
        else
            echo "❓ BOOTLOADER: Status unknown"
        fi

        # Check for fastboot capability
        echo ""
        echo "## Fastboot Capability"
        echo "Note: Testing fastboot requires device to be in fastboot mode"

        # Try to detect if fastboot is available (without actually rebooting)
        local fastboot_check
        fastboot_check=$(command -v fastboot 2>/dev/null)

        if [[ -n "$fastboot_check" ]]; then
            echo "✅ FASTBOOT: Tools available on host"
            echo "Location: $fastboot_check"
        else
            echo "❌ FASTBOOT: Tools not found on host"
            echo "Note: Install Android SDK platform-tools"
        fi

        echo ""
        echo "## OEM Unlock Instructions"
        echo "To unlock bootloader (if allowed):"
        echo "1. Enable Developer Options"
        echo "2. Enable OEM Unlocking in Developer Options"
        echo "3. Boot to fastboot mode: adb reboot bootloader"
        echo "4. Unlock: fastboot oem unlock"
        echo "WARNING: This will wipe all user data!"

    } > "$output_file"

    log "SUCCESS" "OEM unlock status check completed. Results saved to $output_file"
}

# Boot image analysis
boot_image_analysis() {
    local device_serial="$1"

    log "INFO" "Analyzing boot image"

    local output_file="$OUTPUT_DIR/boot_image_analysis_$(date +%Y%m%d_%H%M%S).txt"

    {
        echo "# LockKnife Boot Image Analysis"
        echo "# Generated: $(date)"
        echo "# Device: $device_serial"
        echo ""

        # Check boot image information
        echo "## Boot Image Information"
        local bootimg_info
        bootimg_info=$(execute_shell_cmd "$device_serial" "ls -la /dev/block/bootdevice/by-name/boot 2>/dev/null || echo 'Boot partition not accessible'")

        if [[ "$bootimg_info" != "Boot partition not accessible" ]]; then
            echo "Boot partition: $bootimg_info"
        else
            echo "Boot partition: Not directly accessible"
        fi

        # Get boot image properties
        local boot_slot
        boot_slot=$(execute_shell_cmd "$device_serial" "getprop ro.boot.slot_suffix")
        echo "Active slot: ${boot_slot:-A}"

        local boot_reason
        boot_reason=$(execute_shell_cmd "$device_serial" "getprop ro.bootmode")
        echo "Boot mode: ${boot_reason:-normal}"

        local boot_recovery
        boot_recovery=$(execute_shell_cmd "$device_serial" "getprop ro.boot.recovery")
        echo "Recovery boot: ${boot_recovery:-no}"
        echo ""

        # Kernel information
        echo "## Kernel Information"
        local kernel_version
        kernel_version=$(execute_shell_cmd "$device_serial" "uname -a")
        echo "Kernel: $kernel_version"

        local kernel_cmdline
        kernel_cmdline=$(execute_shell_cmd "$device_serial" "cat /proc/cmdline")
        echo "Kernel cmdline: $kernel_cmdline"
        echo ""

        # Check for initrd
        echo "## Initramfs Information"
        local initrd_check
        initrd_check=$(execute_shell_cmd "$device_serial" "ls -la /init* 2>/dev/null | head -3")
        if [[ -n "$initrd_check" ]]; then
            echo "Init scripts found:"
            echo "$initrd_check"
        else
            echo "No init scripts accessible"
        fi
        echo ""

        # Security features in boot
        echo "## Boot Security Features"
        local selinux_boot
        selinux_boot=$(execute_shell_cmd "$device_serial" "getprop ro.boot.selinux")
        echo "SELinux at boot: ${selinux_boot:-unknown}"

        local verity_boot
        verity_boot=$(execute_shell_cmd "$device_serial" "getprop ro.boot.veritymode")
        echo "DM-Verity at boot: ${verity_boot:-unknown}"

        local encryption_boot
        encryption_boot=$(execute_shell_cmd "$device_serial" "getprop ro.boot.crypto")
        echo "Encryption at boot: ${encryption_boot:-unknown}"

    } > "$output_file"

    log "SUCCESS" "Boot image analysis completed. Results saved to $output_file"
}

# Recovery image analysis
recovery_image_analysis() {
    local device_serial="$1"

    log "INFO" "Analyzing recovery image"

    local output_file="$OUTPUT_DIR/recovery_analysis_$(date +%Y%m%d_%H%M%S).txt"

    {
        echo "# LockKnife Recovery Image Analysis"
        echo "# Generated: $(date)"
        echo "# Device: $device_serial"
        echo ""

        # Check recovery partition
        echo "## Recovery Partition Information"
        local recovery_info
        recovery_info=$(execute_shell_cmd "$device_serial" "ls -la /dev/block/bootdevice/by-name/recovery 2>/dev/null || echo 'Recovery partition not accessible'")

        if [[ "$recovery_info" != "Recovery partition not accessible" ]]; then
            echo "Recovery partition: $recovery_info"
        else
            echo "Recovery partition: Not directly accessible"
        fi

        # Check recovery status
        local recovery_boot
        recovery_boot=$(execute_shell_cmd "$device_serial" "getprop ro.boot.recovery")
        echo "Recovery boot status: ${recovery_boot:-normal boot}"

        # Check for custom recovery
        echo ""
        echo "## Custom Recovery Detection"
        local custom_recovery="false"

        # Check for TWRP indicators
        local twrp_check
        twrp_check=$(execute_shell_cmd "$device_serial" "getprop ro.twrp.version 2>/dev/null || echo 'Not found'")
        if [[ "$twrp_check" != "Not found" ]]; then
            custom_recovery="true"
            echo "✅ TWRP Detected: $twrp_check"
        fi

        # Check for CWM indicators
        local cwm_check
        cwm_check=$(execute_shell_cmd "$device_serial" "getprop ro.cwm.version 2>/dev/null || echo 'Not found'")
        if [[ "$cwm_check" != "Not found" ]]; then
            custom_recovery="true"
            echo "✅ CWM Detected: $cwm_check"
        fi

        # Check for OrangeFox indicators
        local orangefox_check
        orangefox_check=$(execute_shell_cmd "$device_serial" "getprop ro.orangefox.version 2>/dev/null || echo 'Not found'")
        if [[ "$orangefox_check" != "Not found" ]]; then
            custom_recovery="true"
            echo "✅ OrangeFox Detected: $orangefox_check"
        fi

        if [[ "$custom_recovery" = "false" ]]; then
            echo "❌ Stock Recovery: No custom recovery detected"
        fi
        echo ""

        # Recovery security implications
        echo "## Security Implications"
        if [[ "$custom_recovery" = "true" ]]; then
            echo "⚠️ CUSTOM RECOVERY DETECTED"
            echo "Security implications:"
            echo "- Full system access possible"
            echo "- Custom kernels may be installed"
            echo "- Root access likely available"
            echo "- Warranty typically voided"
            echo "- May allow bootloader unlocking"
        else
            echo "✅ STOCK RECOVERY"
            echo "Security implications:"
            echo "- Limited system access"
            echo "- Factory reset capabilities only"
            echo "- OEM security measures intact"
        fi

    } > "$output_file"

    log "SUCCESS" "Recovery image analysis completed. Results saved to $output_file"
}

# Fastboot security check
fastboot_security_check() {
    local device_serial="$1"

    log "INFO" "Checking fastboot security status"

    echo "Fastboot Security Check"
    echo "======================="
    echo "Note: This requires the device to be in fastboot mode."
    echo "Current device should be rebooted to fastboot first."
    echo ""

    read -r -p "Is the device currently in fastboot mode? (y/n): " in_fastboot

    if [[ "$in_fastboot" != "y" && "$in_fastboot" != "Y" ]]; then
        echo "Please reboot device to fastboot mode first:"
        echo "adb reboot bootloader"
        return 1
    fi

    local output_file="$OUTPUT_DIR/fastboot_security_$(date +%Y%m%d_%H%M%S).txt"

    {
        echo "# LockKnife Fastboot Security Check"
        echo "# Generated: $(date)"
        echo "# Device: $device_serial"
        echo ""

        # Check fastboot devices
        echo "## Fastboot Device Detection"
        local fastboot_devices
        fastboot_devices=$(fastboot devices 2>/dev/null)

        if [[ -n "$fastboot_devices" ]]; then
            echo "✅ Fastboot device detected:"
            echo "$fastboot_devices"
        else
            echo "❌ No fastboot devices detected"
            echo "Note: Ensure device is in fastboot mode"
            exit 1
        fi
        echo ""

        # Get fastboot variables
        echo "## Fastboot Variables"
        local fastboot_vars
        fastboot_vars=$(fastboot getvar all 2>/dev/null | head -20)

        if [[ -n "$fastboot_vars" ]]; then
            echo "Fastboot variables:"
            echo "$fastboot_vars"
        else
            echo "Unable to retrieve fastboot variables"
        fi
        echo ""

        # Check bootloader unlock status
        echo "## Bootloader Unlock Status"
        local unlock_status
        unlock_status=$(fastboot getvar unlocked 2>/dev/null)

        if [[ "$unlock_status" =~ "unlocked: yes" ]]; then
            echo "⚠️ BOOTLOADER: Unlocked"
            echo "Security impact: Custom firmware can be flashed"
        elif [[ "$unlock_status" =~ "unlocked: no" ]]; then
            echo "✅ BOOTLOADER: Locked"
            echo "Security impact: OEM verification active"
        else
            echo "❓ BOOTLOADER: Status unknown"
        fi
        echo ""

        # Check OEM lock status
        echo "## OEM Lock Status"
        local oem_lock
        oem_lock=$(fastboot getvar oem_locked 2>/dev/null)

        if [[ "$oem_lock" =~ "oem_locked: 0" ]]; then
            echo "⚠️ OEM: Unlocked"
            echo "Status: OEM restrictions removed"
        elif [[ "$oem_lock" =~ "oem_locked: 1" ]]; then
            echo "✅ OEM: Locked"
            echo "Status: OEM security restrictions active"
        else
            echo "❓ OEM: Status unknown"
        fi

    } > "$output_file"

    log "SUCCESS" "Fastboot security check completed. Results saved to $output_file"
}

# Bootloader security report
bootloader_security_report() {
    local device_serial="$1"

    log "INFO" "Generating bootloader security report"

    local output_file="$OUTPUT_DIR/bootloader_security_report_$(date +%Y%m%d_%H%M%S).txt"

    {
        echo "# LockKnife Bootloader Security Report"
        echo "# Generated: $(date)"
        echo "# Device: $device_serial"
        echo ""

        # Overall bootloader security assessment
        local security_score=100
        local issues_found=""

        # Check verified boot state
        local verified_boot
        verified_boot=$(execute_shell_cmd "$device_serial" "getprop ro.boot.verifiedbootstate")

        case "$verified_boot" in
            "green")
                echo "✅ VERIFIED BOOT: Green (Fully verified)"
                ;;
            "yellow")
                echo "⚠️ VERIFIED BOOT: Yellow (Custom modifications)"
                ((security_score -= 20))
                issues_found="${issues_found}Custom modifications detected, "
                ;;
            "orange")
                echo "🚨 VERIFIED BOOT: Orange (Verification failed)"
                ((security_score -= 50))
                issues_found="${issues_found}Boot verification failed, "
                ;;
            "red")
                echo "❌ VERIFIED BOOT: Red (Compromised)"
                ((security_score -= 100))
                issues_found="${issues_found}Bootloader compromised, "
                ;;
            *)
                echo "❓ VERIFIED BOOT: Unknown"
                ((security_score -= 10))
                ;;
        esac

        # Check secure boot
        local secure_boot
        secure_boot=$(execute_shell_cmd "$device_serial" "getprop ro.boot.secureboot")

        if [[ "$secure_boot" = "1" ]]; then
            echo "✅ SECURE BOOT: Enabled"
        else
            echo "❌ SECURE BOOT: Disabled"
            ((security_score -= 30))
            issues_found="${issues_found}Secure boot disabled, "
        fi

        # Check DM-Verity
        local dm_verity
        dm_verity=$(execute_shell_cmd "$device_serial" "getprop ro.boot.veritymode")

        if [[ "$dm_verity" = "enforcing" ]]; then
            echo "✅ DM-VERITY: Enforcing"
        elif [[ "$dm_verity" = "logging" ]]; then
            echo "⚠️ DM-VERITY: Logging only"
            ((security_score -= 15))
            issues_found="${issues_found}DM-Verity not enforcing, "
        else
            echo "❌ DM-VERITY: Disabled"
            ((security_score -= 40))
            issues_found="${issues_found}DM-Verity disabled, "
        fi

        # Check OEM unlock status
        local oem_unlock
        oem_unlock=$(execute_shell_cmd "$device_serial" "getprop sys.oem_unlock_allowed")

        if [[ "$oem_unlock" = "1" ]]; then
            echo "⚠️ OEM UNLOCK: Allowed"
            ((security_score -= 20))
            issues_found="${issues_found}OEM unlock allowed, "
        else
            echo "✅ OEM UNLOCK: Not allowed"
        fi

        echo ""
        echo "## Security Score: $security_score/100"

        # Grade the bootloader security
        if [[ $security_score -ge 90 ]]; then
            echo "Grade: A (Excellent bootloader security)"
        elif [[ $security_score -ge 80 ]]; then
            echo "Grade: B (Good bootloader security)"
        elif [[ $security_score -ge 70 ]]; then
            echo "Grade: C (Adequate bootloader security)"
        elif [[ $security_score -ge 60 ]]; then
            echo "Grade: D (Poor bootloader security)"
        else
            echo "Grade: F (Critical bootloader vulnerabilities)"
        fi

        echo ""
        echo "## Issues Found"
        if [[ -n "$issues_found" ]]; then
            echo "${issues_found%, }"
        else
            echo "No significant bootloader security issues detected"
        fi

        echo ""
        echo "## Recommendations"
        if [[ "$verified_boot" != "green" ]]; then
            echo "- Restore original bootloader if possible"
            echo "- Verify device integrity"
        fi
        if [[ "$secure_boot" != "1" ]]; then
            echo "- Enable secure boot if supported"
        fi
        if [[ "$dm_verity" != "enforcing" ]]; then
            echo "- Enable DM-Verity for file system integrity"
        fi
        if [[ "$oem_unlock" = "1" ]]; then
            echo "- OEM unlock increases security risks"
            echo "- Only unlock if necessary for development"
        fi

    } > "$output_file"

    log "SUCCESS" "Bootloader security report generated. Score: $security_score/100. Results saved to $output_file"

    # Display summary
    echo
    echo "Bootloader Security Assessment"
    echo "=============================="
    echo "Security Score: $security_score/100"
    echo "Report saved to: $output_file"
}

# Firmware extraction menu (placeholder for enhanced firmware extraction)
firmware_extraction_menu() {
    local device_serial="$1"

    while true; do
        echo
        echo "Firmware Extraction & Analysis"
        echo "=============================="
        echo "1. Partition Table Dump"
        echo "2. Boot Image Extraction"
        echo "3. System Image Analysis"
        echo "4. Firmware Version Check"
        echo "5. OTA Update Analysis"
        echo "6. Firmware Integrity Check"
        echo "7. Custom Partition Extraction"
        echo "8. Firmware Security Assessment"
        echo "0. Back to Main Menu"
        echo

        read -r -p "Choice: " choice

        case $choice in
            1) partition_table_dump "$device_serial" ;;
            2) boot_image_extraction "$device_serial" ;;
            3) system_image_analysis "$device_serial" ;;
            4) firmware_version_check "$device_serial" ;;
            5) ota_update_analysis "$device_serial" ;;
            6) firmware_integrity_check "$device_serial" ;;
            7) custom_partition_extraction "$device_serial" ;;
            8) firmware_security_assessment "$device_serial" ;;
            0) return 0 ;;
            *) log "ERROR" "Invalid choice" ;;
        esac
    done
}

# Partition table dump
partition_table_dump() {
    local device_serial="$1"

    log "INFO" "Dumping partition table"

    local output_file="$OUTPUT_DIR/partition_table_$(date +%Y%m%d_%H%M%S).txt"

    {
        echo "# LockKnife Partition Table Dump"
        echo "# Generated: $(date)"
        echo "# Device: $device_serial"
        echo ""

        # Get partition information
        echo "## Partition Table"
        local partitions
        partitions=$(execute_shell_cmd "$device_serial" "ls -la /dev/block/bootdevice/by-name/ 2>/dev/null")

        if [[ -n "$partitions" ]]; then
            echo "Device partitions:"
            echo "$partitions"
        else
            echo "Unable to access partition table"
        fi
        echo ""

        # Get disk information
        echo "## Disk Information"
        local disk_info
        disk_info=$(execute_shell_cmd "$device_serial" "cat /proc/partitions")

        if [[ -n "$disk_info" ]]; then
            echo "Disk partitions:"
            echo "$disk_info"
        fi

    } > "$output_file"

    log "SUCCESS" "Partition table dump completed. Results saved to $output_file"
}
