DNF90 服务端与启动器完整源码（含 GM 工具功能增强）
服务端（Go）： - GM 塞背包/带属性装备发放：在线角色推送 op14 增量物品行，背包实时刷新，无需回角色选择界面 - GM 改金币/改等级：去掉在线拒绝，落库后推送 op14 钱包/op37 等级状态，在线实时刷新 - 等级端点统一切换到新版 GMSetCharacterLevel（自带在线刷新） - 无限/锁死疲劳模式 + 燃烧疲劳：每房间消耗 2 点、打怪与通关经验双倍 - 燃烧疲劳开关时给所有在线角色推送系统提示（op12 mode 0） - 深渊史诗掉率：GM 全局倍率 + 城镇增益药剂窗口倍率，真实接入掉落结算 启动器（Python/JS）： - 标题栏自绘、窗口 1204x717、禁止拖拽改大小、仅最小化/关闭 - GM 工具：疲劳与燃烧、深渊史诗掉率、拍卖行上架（单一定价对齐） - 拍卖行上架前端对齐服务端单一价格语义，修复 400 报错
This commit is contained in:
hanfuit committed
commit
645b64fe21
4388 files changed
+1405457
No files matched your search
@@ -0,0 +1,226 @@
|
||||
//go:build linux && amd64 && cgo
|
||||
|
||||
package nativepatch
|
||||
|
||||
/*
|
||||
#cgo LDFLAGS: -ldl
|
||||
#include <dlfcn.h>
|
||||
#include <stdint.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <sys/mman.h>
|
||||
#include <unistd.h>
|
||||
|
||||
typedef struct {
|
||||
void *addr;
|
||||
unsigned char original[12];
|
||||
} lh_patch_slot;
|
||||
|
||||
static lh_patch_slot lh_patches[100];
|
||||
static int lh_patch_count = 0;
|
||||
|
||||
static int lh_mprotect_range(void *addr, size_t len, int prot) {
|
||||
size_t page_size = (size_t)sysconf(_SC_PAGESIZE);
|
||||
uintptr_t start = (uintptr_t)addr & ~(uintptr_t)(page_size - 1);
|
||||
uintptr_t end = ((uintptr_t)addr + len + page_size - 1) & ~(uintptr_t)(page_size - 1);
|
||||
return mprotect((void*)start, end - start, prot);
|
||||
}
|
||||
|
||||
static int lh_patch_symbol(const char *old_name, void *new_func) {
|
||||
if (new_func == NULL) {
|
||||
return -1;
|
||||
}
|
||||
if (lh_patch_count >= 100) {
|
||||
return -99;
|
||||
}
|
||||
void *old_func = NULL;
|
||||
if (old_name != NULL && strlen(old_name) > 2 && old_name[0] == '0' && old_name[1] == 'x') {
|
||||
old_func = (void*)strtoull(old_name, NULL, 16);
|
||||
} else {
|
||||
old_func = dlsym(NULL, old_name);
|
||||
}
|
||||
if (old_func == NULL) {
|
||||
return -2;
|
||||
}
|
||||
if (old_func == new_func) {
|
||||
return -3;
|
||||
}
|
||||
unsigned char jump[12] = {0x48, 0xba, 0, 0, 0, 0, 0, 0, 0, 0, 0xff, 0xe2};
|
||||
memcpy(&jump[2], &new_func, sizeof(void*));
|
||||
if (lh_mprotect_range(old_func, sizeof(jump), PROT_READ|PROT_WRITE|PROT_EXEC) != 0) {
|
||||
return -4;
|
||||
}
|
||||
lh_patch_slot *slot = &lh_patches[lh_patch_count];
|
||||
memcpy(slot->original, old_func, sizeof(jump));
|
||||
slot->addr = old_func;
|
||||
memcpy(old_func, jump, sizeof(jump));
|
||||
__builtin___clear_cache((char*)old_func, (char*)old_func + sizeof(jump));
|
||||
lh_patch_count++;
|
||||
if (lh_mprotect_range(old_func, sizeof(jump), PROT_READ|PROT_EXEC) != 0) {
|
||||
return -5;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int lh_restore_symbols() {
|
||||
int i;
|
||||
int kept = 0;
|
||||
for (i = lh_patch_count - 1; i >= 0; i--) {
|
||||
lh_patch_slot *slot = &lh_patches[i];
|
||||
if (lh_mprotect_range(slot->addr, sizeof(slot->original), PROT_READ|PROT_WRITE|PROT_EXEC) != 0) {
|
||||
lh_patches[kept++] = *slot;
|
||||
continue;
|
||||
}
|
||||
memcpy(slot->addr, slot->original, sizeof(slot->original));
|
||||
__builtin___clear_cache((char*)slot->addr, (char*)slot->addr + sizeof(slot->original));
|
||||
(void)lh_mprotect_range(slot->addr, sizeof(slot->original), PROT_READ|PROT_EXEC);
|
||||
}
|
||||
lh_patch_count = kept;
|
||||
return kept;
|
||||
}
|
||||
|
||||
static int lh_patch_symbol_addr(const char *old_name, uintptr_t new_func_addr) {
|
||||
return lh_patch_symbol(old_name, (void*)new_func_addr);
|
||||
}
|
||||
*/
|
||||
import "C"
|
||||
|
||||
import (
|
||||
"context"
|
||||
"fmt"
|
||||
"path/filepath"
|
||||
"plugin"
|
||||
"reflect"
|
||||
"sync"
|
||||
"time"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
type NativeEngine struct {
|
||||
mu sync.Mutex
|
||||
snapshot Snapshot
|
||||
plugins []*plugin.Plugin
|
||||
}
|
||||
|
||||
func NewNativeEngine() *NativeEngine {
|
||||
return defaultNativeEngine
|
||||
}
|
||||
|
||||
var defaultNativeEngine = &NativeEngine{snapshot: Snapshot{Supported: true}}
|
||||
|
||||
func (e *NativeEngine) Supported() bool {
|
||||
return true
|
||||
}
|
||||
|
||||
func (e *NativeEngine) Apply(ctx context.Context, pkg Package) (Result, error) {
|
||||
if err := contextErr(ctx); err != nil {
|
||||
return Result{}, err
|
||||
}
|
||||
if err := ValidatePlan(pkg.Plan); err != nil {
|
||||
return Result{}, err
|
||||
}
|
||||
started := time.Now().UTC()
|
||||
e.mu.Lock()
|
||||
defer e.mu.Unlock()
|
||||
// 应用新补丁前先恢复旧补丁，保证进程内同一时刻只有一组函数入口被改写。
|
||||
if remaining := int(C.lh_restore_symbols()); remaining != 0 {
|
||||
return Result{Version: pkg.Plan.Version, Target: pkg.Plan.Target, StartedAt: started, EndedAt: time.Now().UTC()}, fmt.Errorf("restore existing native patch left %d symbol(s)", remaining)
|
||||
}
|
||||
e.plugins = nil
|
||||
applied, plugins, err := applyPackage(ctx, pkg)
|
||||
if err != nil {
|
||||
// 任意符号替换失败都尝试回滚已替换部分，避免半套补丁继续运行。
|
||||
if remaining := int(C.lh_restore_symbols()); remaining != 0 {
|
||||
err = fmt.Errorf("%w; cleanup left %d native patch symbol(s)", err, remaining)
|
||||
}
|
||||
e.snapshot = Snapshot{Supported: true}
|
||||
return Result{Version: pkg.Plan.Version, Target: pkg.Plan.Target, StartedAt: started, EndedAt: time.Now().UTC()}, err
|
||||
}
|
||||
e.plugins = plugins
|
||||
ended := time.Now().UTC()
|
||||
e.snapshot = Snapshot{
|
||||
Supported: true,
|
||||
Applied: true,
|
||||
Version: pkg.Plan.Version,
|
||||
Target: pkg.Plan.Target,
|
||||
AppliedSymbols: applied,
|
||||
LastAppliedAt: ended,
|
||||
}
|
||||
return Result{Version: pkg.Plan.Version, Target: pkg.Plan.Target, Applied: applied, StartedAt: started, EndedAt: ended}, nil
|
||||
}
|
||||
|
||||
func (e *NativeEngine) Restore(ctx context.Context) (Result, error) {
|
||||
if err := contextErr(ctx); err != nil {
|
||||
return Result{}, err
|
||||
}
|
||||
started := time.Now().UTC()
|
||||
e.mu.Lock()
|
||||
defer e.mu.Unlock()
|
||||
// Restore 必须在同一把锁内完成，避免 Apply/Restore 并发改写同一段函数入口。
|
||||
if remaining := int(C.lh_restore_symbols()); remaining != 0 {
|
||||
ended := time.Now().UTC()
|
||||
e.snapshot.Applied = true
|
||||
return Result{Restored: false, StartedAt: started, EndedAt: ended}, fmt.Errorf("restore native patch left %d symbol(s)", remaining)
|
||||
}
|
||||
e.plugins = nil
|
||||
ended := time.Now().UTC()
|
||||
e.snapshot = Snapshot{Supported: true, LastRestoredAt: ended}
|
||||
return Result{Restored: true, StartedAt: started, EndedAt: ended}, nil
|
||||
}
|
||||
|
||||
func (e *NativeEngine) Snapshot() Snapshot {
|
||||
e.mu.Lock()
|
||||
snapshot := e.snapshot
|
||||
e.mu.Unlock()
|
||||
return snapshot
|
||||
}
|
||||
|
||||
func applyPackage(ctx context.Context, pkg Package) (int, []*plugin.Plugin, error) {
|
||||
applied := 0
|
||||
loaded := make([]*plugin.Plugin, 0, len(pkg.Plan.Plugins))
|
||||
for _, item := range pkg.Plan.Plugins {
|
||||
if err := contextErr(ctx); err != nil {
|
||||
return applied, loaded, err
|
||||
}
|
||||
plug, err := plugin.Open(resolvePluginPath(pkg.Directory, item.File))
|
||||
if err != nil {
|
||||
return applied, loaded, fmt.Errorf("open native patch plugin %s: %w", item.File, err)
|
||||
}
|
||||
loaded = append(loaded, plug)
|
||||
// symbols 映射含义是“新函数符号 -> 旧函数符号”，旧函数入口会被跳转到新函数。
|
||||
// 签名兼容必须由发布流程和人工评审保证，运行时只能校验符号存在。
|
||||
for newSymbol, oldSymbol := range item.Symbols {
|
||||
symbol, err := plug.Lookup(newSymbol)
|
||||
if err != nil {
|
||||
return applied, loaded, fmt.Errorf("lookup native patch symbol %s: %w", newSymbol, err)
|
||||
}
|
||||
ptr, err := functionPointer(reflect.ValueOf(symbol))
|
||||
if err != nil {
|
||||
return applied, loaded, fmt.Errorf("native patch symbol %s: %w", newSymbol, err)
|
||||
}
|
||||
oldName := C.CString(oldSymbol)
|
||||
code := C.lh_patch_symbol_addr(oldName, ptr)
|
||||
C.free(unsafe.Pointer(oldName))
|
||||
if code != 0 {
|
||||
return applied, loaded, fmt.Errorf("patch native symbol %s -> %s failed: code=%d", newSymbol, oldSymbol, int(code))
|
||||
}
|
||||
applied++
|
||||
}
|
||||
}
|
||||
return applied, loaded, nil
|
||||
}
|
||||
|
||||
func resolvePluginPath(root, file string) string {
|
||||
return filepath.Join(root, file)
|
||||
}
|
||||
|
||||
func functionPointer(value reflect.Value) (C.uintptr_t, error) {
|
||||
if !value.IsValid() || value.Kind() != reflect.Func {
|
||||
return 0, fmt.Errorf("exported symbol must be a function")
|
||||
}
|
||||
ptr := value.Pointer()
|
||||
if ptr == 0 {
|
||||
return 0, fmt.Errorf("function pointer is nil")
|
||||
}
|
||||
return C.uintptr_t(ptr), nil
|
||||
}
|
||||
Reference in new issue
Block a user