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feat: eliminate dependency on gfsdk_original.dll

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It's no longer necessary to keep the original gfsdk.dll inside of the
game directory.
This commit is contained in:
xeon
2026-02-03 19:09:26 +03:00
parent 099e86da01
commit b36ef02e6b
3 changed files with 47 additions and 142 deletions
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2
README.md
View File

@@ -9,4 +9,4 @@ First of all, it redirects all of the game requests to a local server. Second of
## Setup ## Setup
You can get a prebuilt DLL for your game version in [releases](https://git.xeondev.com/LR/C/releases). If you don't want to use prebuilt binaries, you can compile it with `Zig 0.16.0-dev.2368`, running `zig build` will do the trick. You can get a prebuilt DLL for your game version in [releases](https://git.xeondev.com/LR/C/releases). If you don't want to use prebuilt binaries, you can compile it with `Zig 0.16.0-dev.2368`, running `zig build` will do the trick.
Next, you have to go to the game's directory and find the `gfsdk.dll` file. You have to RENAME it to `gfsdk_original.dll`. Afterwards, you should place `gfsdk.dll` that you've got from this repository in the game's directory. That should be it, just run Endfield.exe. If a console with an ASCII art spawns, it works. Next, you have to go to the game's directory and replace the `gfsdk.dll` file with the one you've got from this repository. That should be it, just run Endfield.exe. If a console with an ASCII art spawns, it works.

178
src/proxy_exports.zig
View File

@@ -1,173 +1,79 @@
const std = @import("std"); const std = @import("std");
const windows = std.os.windows;
pub var ptrGFSdkGetProtocolStatus: usize = undefined; pub export fn GFSdkGetProtocolStatus() callconv(.c) u32 {
pub var ptrGFSdkInit: usize = undefined; return 0;
pub var ptrGFSdkInitLibrary: usize = undefined;
pub var ptrGFSdkLogOut: usize = undefined;
pub var ptrGFSdkLogin: usize = undefined;
pub var ptrGFSdkOpenCustomerServiceCenter: usize = undefined;
pub var ptrGFSdkOpenProfile: usize = undefined;
pub var ptrGFSdkPayByPayment: usize = undefined;
pub var ptrGFSdkQueryProductList: usize = undefined;
pub var ptrGFSdkSetExtraConfig: usize = undefined;
pub var ptrGFSdkSetLanguage: usize = undefined;
pub var ptrGFSdkSetServerId: usize = undefined;
pub var ptrGFSdkSetServerType: usize = undefined;
pub var ptrGFSdkSetUserDataPath: usize = undefined;
pub var ptrGFSdkShowAccountCenter: usize = undefined;
pub var ptrGFSdkShowProtocolView: usize = undefined;
pub var ptrGFSdkUnInit: usize = undefined;
pub var ptrGFSdkUnInitLibrary: usize = undefined;
pub fn link(against: windows.HMODULE) void {
inline for (@typeInfo(@This()).@"struct".decls) |decl| {
if (@TypeOf(@field(@This(), decl.name)) != usize) continue;
@field(@This(), decl.name) = @intFromPtr(windows.kernel32.GetProcAddress(against, decl.name[3..]) orelse null);
}
} }
pub export fn GFSdkGetProtocolStatus() callconv(.naked) void { pub export fn GFSdkInit(
asm volatile ( _: usize,
\\ jmp *%[addr] initCallback: *const fn (usize, usize) callconv(.c) void,
: _: usize,
: [addr] "r" (ptrGFSdkGetProtocolStatus), _: usize,
); ) callconv(.c) u32 {
initCallback(0, 0);
return 3;
} }
pub export fn GFSdkInit() callconv(.naked) u32 { pub export fn GFSdkInitLibrary() callconv(.c) u32 {
asm volatile ( return 1;
\\ jmp *%[addr]
:
: [addr] "r" (ptrGFSdkInit),
);
} }
pub export fn GFSdkInitLibrary() callconv(.naked) u32 { pub export fn GFSdkLogOut() callconv(.c) u32 {
asm volatile ( return 0;
\\ jmp *%[addr]
:
: [addr] "r" (ptrGFSdkInitLibrary),
);
} }
pub export fn GFSdkLogOut() callconv(.naked) u32 { pub export fn GFSdkLogin() callconv(.c) u32 {
asm volatile ( return 0;
\\ jmp *%[addr]
:
: [addr] "r" (ptrGFSdkLogOut),
);
} }
pub export fn GFSdkLogin() callconv(.naked) u32 { pub export fn GFSdkOpenCustomerServiceCenter() callconv(.c) u32 {
asm volatile ( return 0;
\\ jmp *%[addr]
:
: [addr] "r" (ptrGFSdkLogin),
);
} }
pub export fn GFSdkOpenCustomerServiceCenter() callconv(.naked) u32 { pub export fn GFSdkOpenProfile() callconv(.c) u32 {
asm volatile ( return 0;
\\ jmp *%[addr]
:
: [addr] "r" (ptrGFSdkOpenCustomerServiceCenter),
);
} }
pub export fn GFSdkOpenProfile() callconv(.naked) u32 { pub export fn GFSdkPayByPayment() callconv(.c) u32 {
asm volatile ( return 0;
\\ jmp *%[addr]
:
: [addr] "r" (ptrGFSdkOpenProfile),
);
} }
pub export fn GFSdkPayByPayment() callconv(.naked) u32 { pub export fn GFSdkQueryProductList() callconv(.c) u32 {
asm volatile ( return 0;
\\ jmp *%[addr]
:
: [addr] "r" (ptrGFSdkPayByPayment),
);
} }
pub export fn GFSdkQueryProductList() callconv(.naked) u32 { pub export fn GFSdkSetLanguage() callconv(.c) u32 {
asm volatile ( return 0;
\\ jmp *%[addr]
:
: [addr] "r" (ptrGFSdkQueryProductList),
);
} }
pub export fn GFSdkSetLanguage() callconv(.naked) u32 { pub export fn GFSdkSetServerId() callconv(.c) u32 {
asm volatile ( return 0;
\\ jmp *%[addr]
:
: [addr] "r" (ptrGFSdkSetLanguage),
);
} }
pub export fn GFSdkSetServerId() callconv(.naked) u32 { pub export fn GFSdkSetServerType() callconv(.c) u32 {
asm volatile ( return 0;
\\ jmp *%[addr]
:
: [addr] "r" (ptrGFSdkSetServerId),
);
} }
pub export fn GFSdkSetServerType() callconv(.naked) u32 { pub export fn GFSdkSetUserDataPath() callconv(.c) u32 {
asm volatile ( return 0;
\\ jmp *%[addr]
:
: [addr] "r" (ptrGFSdkSetServerType),
);
} }
pub export fn GFSdkSetUserDataPath() callconv(.naked) u32 { pub export fn GFSdkShowAccountCenter() callconv(.c) u32 {
asm volatile ( return 0;
\\ jmp *%[addr]
:
: [addr] "r" (ptrGFSdkSetUserDataPath),
);
} }
pub export fn GFSdkShowAccountCenter() callconv(.naked) u32 { pub export fn GFSdkShowProtocolView() callconv(.c) u32 {
asm volatile ( return 0;
\\ jmp *%[addr]
:
: [addr] "r" (ptrGFSdkShowAccountCenter),
);
} }
pub export fn GFSdkShowProtocolView() callconv(.naked) u32 { pub export fn GFSdkUnInit() callconv(.c) u32 {
asm volatile ( return 0;
\\ jmp *%[addr]
:
: [addr] "r" (ptrGFSdkShowProtocolView),
);
} }
pub export fn GFSdkUnInit() callconv(.naked) u32 { pub export fn GFSdkUnInitLibrary() callconv(.c) u32 {
asm volatile ( return 0;
\\ jmp *%[addr]
:
: [addr] "r" (ptrGFSdkUnInit),
);
} }
pub export fn GFSdkUnInitLibrary() callconv(.naked) u32 { pub export fn GFSdkSetExtraConfig() callconv(.c) u32 {
asm volatile ( return 0;
\\ jmp *%[addr]
:
: [addr] "r" (ptrGFSdkUnInitLibrary),
);
}
pub export fn GFSdkSetExtraConfig() callconv(.naked) void {
asm volatile (
\\ jmp *%[addr]
:
: [addr] "r" (ptrGFSdkSetExtraConfig),
);
} }

9
src/root.zig
View File

@@ -1,7 +1,10 @@
const std = @import("std"); const std = @import("std");
const interceptor = @import("interceptor.zig"); const interceptor = @import("interceptor.zig");
const Il2cpp = @import("Il2cpp.zig"); const Il2cpp = @import("Il2cpp.zig");
const proxy_exports = @import("proxy_exports.zig");
comptime {
_ = @import("proxy_exports.zig");
}
const windows = std.os.windows; const windows = std.os.windows;
const unicode = std.unicode; const unicode = std.unicode;
@@ -157,10 +160,6 @@ const WebRequestPatch = struct {
pub export fn DllMain(_: windows.HINSTANCE, reason: windows.DWORD, _: windows.LPVOID) callconv(.winapi) windows.BOOL { pub export fn DllMain(_: windows.HINSTANCE, reason: windows.DWORD, _: windows.LPVOID) callconv(.winapi) windows.BOOL {
if (reason == DLL_PROCESS_ATTACH) { if (reason == DLL_PROCESS_ATTACH) {
if (windows.kernel32.LoadLibraryW(unicode.utf8ToUtf16LeStringLiteral("gfsdk_original.dll"))) |lib| {
proxy_exports.link(lib);
}
const thread = std.Thread.spawn(.{}, onAttach, .{}) catch unreachable; const thread = std.Thread.spawn(.{}, onAttach, .{}) catch unreachable;
thread.detach(); thread.detach();
} }