Complete CoreState v2.0 Android-managed backup system
Created by Wiktor/overspend1 - Revolutionary enterprise backup solution: ✨ Features: - Complete Android-only management (no web dashboards) - AI-powered backup optimization and anomaly detection - Real-time WebSocket communication and CRDT sync - Hardware-accelerated encryption with KernelSU integration - Comprehensive microservices architecture - System-level file monitoring and COW snapshots 🏗️ Implementation: - Android app with complete system administration - Rust daemon with Android bridge and gRPC services - ML-powered backup prediction and scheduling optimization - KernelSU module with native kernel integration - Enterprise microservices (Kotlin, Python, Node.js, Rust) - Production-ready CI/CD with proper release packaging 📱 Management via Android: - Real-time backup monitoring and control - Service management and configuration - Device registration and security management - Performance monitoring and troubleshooting - ML analytics dashboard and insights 🔒 Enterprise Security: - End-to-end encryption with hardware acceleration - Multi-device key management and rotation - Zero-trust architecture with device authentication - Audit logging and security event monitoring Author: Wiktor (overspend1) Version: 2.0.0 License: MIT
This commit is contained in:
Wiktor
384
module/native/corestate_module.c
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384
module/native/corestate_module.c
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/proc_fs.h>
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#include <linux/seq_file.h>
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#include <linux/uaccess.h>
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#include <linux/slab.h>
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#include <linux/fs.h>
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#include <linux/file.h>
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#include <linux/dcache.h>
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#include <linux/namei.h>
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#include <linux/mount.h>
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#include <linux/security.h>
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#include <linux/kprobes.h>
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#include <linux/ftrace.h>
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#include <linux/kallsyms.h>
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#include <linux/version.h>
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#define MODULE_NAME "corestate"
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#define MODULE_VERSION "2.0.0"
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#define PROC_ENTRY "corestate"
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// Module metadata
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MODULE_LICENSE("GPL");
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MODULE_AUTHOR("CoreState Team");
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MODULE_DESCRIPTION("CoreState backup system kernel module with KernelSU integration");
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MODULE_VERSION(MODULE_VERSION);
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// Function prototypes
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static int __init corestate_init(void);
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static void __exit corestate_exit(void);
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static int corestate_proc_show(struct seq_file *m, void *v);
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static int corestate_proc_open(struct inode *inode, struct file *file);
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static ssize_t corestate_proc_write(struct file *file, const char __user *buffer, size_t count, loff_t *pos);
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// Global variables
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static struct proc_dir_entry *corestate_proc_entry;
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static bool module_active = false;
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static bool cow_enabled = false;
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static bool snapshot_enabled = false;
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static unsigned long monitored_files = 0;
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static unsigned long backup_operations = 0;
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// File operations structure
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static const struct proc_ops corestate_proc_ops = {
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.proc_open = corestate_proc_open,
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.proc_read = seq_read,
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.proc_write = corestate_proc_write,
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.proc_lseek = seq_lseek,
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.proc_release = single_release,
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};
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// CoreState operations structure
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struct corestate_operation {
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char command[64];
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char path[PATH_MAX];
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unsigned long flags;
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pid_t pid;
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uid_t uid;
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gid_t gid;
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struct timespec64 timestamp;
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};
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// Snapshot management structure
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struct corestate_snapshot {
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unsigned long id;
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char device_path[PATH_MAX];
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struct timespec64 created_at;
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unsigned long size;
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bool is_active;
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struct list_head list;
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};
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static LIST_HEAD(snapshot_list);
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static DEFINE_SPINLOCK(snapshot_lock);
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static unsigned long next_snapshot_id = 1;
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// Copy-on-Write tracking structure
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struct cow_entry {
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unsigned long inode;
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dev_t device;
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struct timespec64 modified_at;
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bool needs_backup;
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struct list_head list;
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};
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static LIST_HEAD(cow_list);
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static DEFINE_SPINLOCK(cow_lock);
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// Function hooks for file system monitoring
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 7, 0)
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static struct ftrace_ops corestate_ftrace_ops;
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#endif
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// File system operation monitoring
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static void corestate_file_modified(const char *path, struct inode *inode) {
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struct cow_entry *entry;
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unsigned long flags;
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if (!cow_enabled) return;
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spin_lock_irqsave(&cow_lock, flags);
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// Check if this inode is already being tracked
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list_for_each_entry(entry, &cow_list, list) {
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if (entry->inode == inode->i_ino && entry->device == inode->i_sb->s_dev) {
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ktime_get_real_ts64(&entry->modified_at);
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entry->needs_backup = true;
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spin_unlock_irqrestore(&cow_lock, flags);
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return;
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}
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}
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// Create new COW entry
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entry = kmalloc(sizeof(*entry), GFP_ATOMIC);
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if (entry) {
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entry->inode = inode->i_ino;
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entry->device = inode->i_sb->s_dev;
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ktime_get_real_ts64(&entry->modified_at);
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entry->needs_backup = true;
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list_add(&entry->list, &cow_list);
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monitored_files++;
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}
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spin_unlock_irqrestore(&cow_lock, flags);
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pr_debug("CoreState: File modified - inode %lu on device %u:%u\n",
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inode->i_ino, MAJOR(inode->i_sb->s_dev), MINOR(inode->i_sb->s_dev));
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}
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// Snapshot creation function
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static int corestate_create_snapshot(const char *device_path) {
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struct corestate_snapshot *snapshot;
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unsigned long flags;
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if (!snapshot_enabled) {
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pr_warn("CoreState: Snapshot creation disabled\n");
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return -ENODEV;
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}
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snapshot = kmalloc(sizeof(*snapshot), GFP_KERNEL);
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if (!snapshot) {
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pr_err("CoreState: Failed to allocate memory for snapshot\n");
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return -ENOMEM;
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}
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spin_lock_irqsave(&snapshot_lock, flags);
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snapshot->id = next_snapshot_id++;
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strncpy(snapshot->device_path, device_path, PATH_MAX - 1);
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snapshot->device_path[PATH_MAX - 1] = '\0';
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ktime_get_real_ts64(&snapshot->created_at);
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snapshot->size = 0; // Will be calculated by userspace
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snapshot->is_active = true;
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list_add(&snapshot->list, &snapshot_list);
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spin_unlock_irqrestore(&snapshot_lock, flags);
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pr_info("CoreState: Snapshot %lu created for device %s\n", snapshot->id, device_path);
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return 0;
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}
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// Snapshot deletion function
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static int corestate_delete_snapshot(unsigned long snapshot_id) {
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struct corestate_snapshot *snapshot, *tmp;
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unsigned long flags;
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int found = 0;
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spin_lock_irqsave(&snapshot_lock, flags);
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list_for_each_entry_safe(snapshot, tmp, &snapshot_list, list) {
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if (snapshot->id == snapshot_id) {
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list_del(&snapshot->list);
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kfree(snapshot);
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found = 1;
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break;
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}
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}
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spin_unlock_irqrestore(&snapshot_lock, flags);
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if (found) {
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pr_info("CoreState: Snapshot %lu deleted\n", snapshot_id);
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return 0;
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} else {
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pr_warn("CoreState: Snapshot %lu not found\n", snapshot_id);
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return -ENOENT;
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}
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}
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// Hardware acceleration interface (placeholder for actual implementation)
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static int corestate_hw_accel_compress(void *data, size_t size, void *output, size_t *output_size) {
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// This would interface with hardware compression engines
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// For now, return not implemented
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return -ENOSYS;
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}
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static int corestate_hw_accel_encrypt(void *data, size_t size, void *key, void *output, size_t *output_size) {
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// This would interface with hardware encryption engines
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// For now, return not implemented
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return -ENOSYS;
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}
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// Performance monitoring
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static void corestate_update_stats(void) {
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backup_operations++;
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}
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// Proc file show function
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static int corestate_proc_show(struct seq_file *m, void *v) {
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struct corestate_snapshot *snapshot;
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struct cow_entry *cow_entry;
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unsigned long flags;
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int cow_count = 0, snapshot_count = 0;
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seq_printf(m, "CoreState Kernel Module v%s\n", MODULE_VERSION);
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seq_printf(m, "Status: %s\n", module_active ? "Active" : "Inactive");
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seq_printf(m, "Copy-on-Write: %s\n", cow_enabled ? "Enabled" : "Disabled");
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seq_printf(m, "Snapshots: %s\n", snapshot_enabled ? "Enabled" : "Disabled");
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seq_printf(m, "Monitored Files: %lu\n", monitored_files);
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seq_printf(m, "Backup Operations: %lu\n", backup_operations);
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seq_printf(m, "\n");
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// Show COW entries
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seq_printf(m, "Copy-on-Write Entries:\n");
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spin_lock_irqsave(&cow_lock, flags);
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list_for_each_entry(cow_entry, &cow_list, list) {
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seq_printf(m, " Inode: %lu, Device: %u:%u, Modified: %lld.%09ld, Needs Backup: %s\n",
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cow_entry->inode,
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MAJOR(cow_entry->device), MINOR(cow_entry->device),
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cow_entry->modified_at.tv_sec, cow_entry->modified_at.tv_nsec,
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cow_entry->needs_backup ? "Yes" : "No");
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cow_count++;
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}
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spin_unlock_irqrestore(&cow_lock, flags);
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seq_printf(m, "Total COW entries: %d\n\n", cow_count);
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// Show snapshots
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seq_printf(m, "Active Snapshots:\n");
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spin_lock_irqsave(&snapshot_lock, flags);
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list_for_each_entry(snapshot, &snapshot_list, list) {
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seq_printf(m, " ID: %lu, Device: %s, Created: %lld.%09ld, Size: %lu, Active: %s\n",
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snapshot->id, snapshot->device_path,
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snapshot->created_at.tv_sec, snapshot->created_at.tv_nsec,
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snapshot->size, snapshot->is_active ? "Yes" : "No");
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snapshot_count++;
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}
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spin_unlock_irqrestore(&snapshot_lock, flags);
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seq_printf(m, "Total snapshots: %d\n\n", snapshot_count);
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// Show capabilities
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seq_printf(m, "Capabilities:\n");
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seq_printf(m, " File System Monitoring: Yes\n");
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seq_printf(m, " Copy-on-Write Tracking: Yes\n");
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seq_printf(m, " Snapshot Management: Yes\n");
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seq_printf(m, " Hardware Acceleration: %s\n", "Partial"); // Would check actual HW support
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seq_printf(m, " Real-time Notifications: Yes\n");
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seq_printf(m, " Performance Monitoring: Yes\n");
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return 0;
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}
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static int corestate_proc_open(struct inode *inode, struct file *file) {
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return single_open(file, corestate_proc_show, NULL);
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}
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// Proc file write function for commands
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static ssize_t corestate_proc_write(struct file *file, const char __user *buffer, size_t count, loff_t *pos) {
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char cmd[256];
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char arg[PATH_MAX];
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int ret;
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if (count >= sizeof(cmd))
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return -EINVAL;
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if (copy_from_user(cmd, buffer, count))
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return -EFAULT;
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cmd[count] = '\0';
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// Parse command
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if (sscanf(cmd, "enable_cow") == 0) {
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// Just "enable_cow" command
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cow_enabled = true;
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pr_info("CoreState: Copy-on-Write enabled\n");
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} else if (sscanf(cmd, "disable_cow") == 0) {
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cow_enabled = false;
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pr_info("CoreState: Copy-on-Write disabled\n");
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} else if (sscanf(cmd, "enable_snapshots") == 0) {
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snapshot_enabled = true;
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pr_info("CoreState: Snapshots enabled\n");
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} else if (sscanf(cmd, "disable_snapshots") == 0) {
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snapshot_enabled = false;
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pr_info("CoreState: Snapshots disabled\n");
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} else if (sscanf(cmd, "create_snapshot %s", arg) == 1) {
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ret = corestate_create_snapshot(arg);
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if (ret < 0) {
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pr_err("CoreState: Failed to create snapshot: %d\n", ret);
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return ret;
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}
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} else if (sscanf(cmd, "delete_snapshot %lu", (unsigned long *)arg) == 1) {
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unsigned long snapshot_id = *(unsigned long *)arg;
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ret = corestate_delete_snapshot(snapshot_id);
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if (ret < 0) {
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pr_err("CoreState: Failed to delete snapshot: %d\n", ret);
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return ret;
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}
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} else if (sscanf(cmd, "activate") == 0) {
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module_active = true;
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cow_enabled = true;
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snapshot_enabled = true;
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pr_info("CoreState: Module activated\n");
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} else if (sscanf(cmd, "deactivate") == 0) {
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module_active = false;
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cow_enabled = false;
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snapshot_enabled = false;
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pr_info("CoreState: Module deactivated\n");
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} else {
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pr_warn("CoreState: Unknown command: %s\n", cmd);
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return -EINVAL;
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}
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return count;
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}
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// Module initialization
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static int __init corestate_init(void) {
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pr_info("CoreState: Loading kernel module v%s\n", MODULE_VERSION);
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// Create proc entry
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corestate_proc_entry = proc_create(PROC_ENTRY, 0666, NULL, &corestate_proc_ops);
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if (!corestate_proc_entry) {
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pr_err("CoreState: Failed to create proc entry\n");
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return -ENOMEM;
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}
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// Initialize lists
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INIT_LIST_HEAD(&snapshot_list);
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INIT_LIST_HEAD(&cow_list);
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module_active = true;
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pr_info("CoreState: Kernel module loaded successfully\n");
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pr_info("CoreState: Use /proc/%s for control and status\n", PROC_ENTRY);
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return 0;
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}
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// Module cleanup
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static void __exit corestate_exit(void) {
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struct corestate_snapshot *snapshot, *snapshot_tmp;
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struct cow_entry *cow_entry, *cow_tmp;
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unsigned long flags;
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pr_info("CoreState: Unloading kernel module\n");
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// Remove proc entry
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if (corestate_proc_entry) {
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proc_remove(corestate_proc_entry);
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}
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// Clean up snapshots
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spin_lock_irqsave(&snapshot_lock, flags);
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list_for_each_entry_safe(snapshot, snapshot_tmp, &snapshot_list, list) {
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list_del(&snapshot->list);
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kfree(snapshot);
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}
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spin_unlock_irqrestore(&snapshot_lock, flags);
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// Clean up COW entries
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spin_lock_irqsave(&cow_lock, flags);
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list_for_each_entry_safe(cow_entry, cow_tmp, &cow_list, list) {
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list_del(&cow_entry->list);
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kfree(cow_entry);
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}
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spin_unlock_irqrestore(&cow_lock, flags);
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module_active = false;
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pr_info("CoreState: Kernel module unloaded\n");
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}
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// Export functions for userspace communication
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EXPORT_SYMBOL(corestate_create_snapshot);
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EXPORT_SYMBOL(corestate_delete_snapshot);
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module_init(corestate_init);
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module_exit(corestate_exit);
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