Add dvd hook to allow hiding connected dvd drives

This commit is contained in:
6cb1008cabfc0d4485696f6df7431a5e27604e1b 2021-06-16 12:08:08 +02:00
parent 7123a9feff
commit 56a32fd80a
11 changed files with 124 additions and 1 deletions

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@ -6,6 +6,7 @@
#include "hooklib/config.h" #include "hooklib/config.h"
#include "hooklib/gfx.h" #include "hooklib/gfx.h"
#include "hooklib/dvd.h"
void gfx_config_load(struct gfx_config *cfg, const wchar_t *filename) void gfx_config_load(struct gfx_config *cfg, const wchar_t *filename)
{ {
@ -17,3 +18,11 @@ void gfx_config_load(struct gfx_config *cfg, const wchar_t *filename)
cfg->framed = GetPrivateProfileIntW(L"gfx", L"framed", 1, filename); cfg->framed = GetPrivateProfileIntW(L"gfx", L"framed", 1, filename);
cfg->monitor = GetPrivateProfileIntW(L"gfx", L"monitor", 0, filename); cfg->monitor = GetPrivateProfileIntW(L"gfx", L"monitor", 0, filename);
} }
void dvd_config_load(struct dvd_config *cfg, const wchar_t *filename)
{
assert(cfg != NULL);
assert(filename != NULL);
cfg->enable = GetPrivateProfileIntW(L"dvd", L"enable", 1, filename);
}

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@ -4,5 +4,7 @@
#include <stddef.h> #include <stddef.h>
#include "hooklib/gfx.h" #include "hooklib/gfx.h"
#include "hooklib/dvd.h"
void gfx_config_load(struct gfx_config *cfg, const wchar_t *filename); void gfx_config_load(struct gfx_config *cfg, const wchar_t *filename);
void dvd_config_load(struct dvd_config *cfg, const wchar_t *filename);

85
hooklib/dvd.c Normal file
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@ -0,0 +1,85 @@
#include <windows.h>
#include <assert.h>
#include <stdbool.h>
#include <stdlib.h>
#include "hook/com-proxy.h"
#include "hook/table.h"
#include "hooklib/config.h"
#include "hooklib/dll.h"
#include "hooklib/dvd.h"
#include "util/dprintf.h"
/* API hooks */
static DWORD WINAPI hook_QueryDosDeviceW(
const wchar_t *lpDeviceName,
wchar_t *lpTargetPath,
DWORD ucchMax);
/* Link pointers */
static DWORD (WINAPI *next_QueryDosDeviceW)(
const wchar_t *lpDeviceName,
wchar_t *lpTargetPath,
DWORD ucchMax);
static bool dvd_hook_initted;
static struct dvd_config dvd_config;
static const struct hook_symbol dvd_hooks[] = {
{
.name = "QueryDosDeviceW",
.patch = hook_QueryDosDeviceW,
.link = (void **) &next_QueryDosDeviceW
},
};
void dvd_hook_init(const struct dvd_config *cfg, HINSTANCE self)
{
assert(cfg != NULL);
if (!cfg->enable) {
return;
}
/* Init is not thread safe because API hook init is not thread safe blah
blah blah you know the drill by now. */
if (dvd_hook_initted) {
return;
}
dvd_hook_initted = true;
memcpy(&dvd_config, cfg, sizeof(*cfg));
hook_table_apply(NULL, "kernel32.dll", dvd_hooks, _countof(dvd_hooks));
dprintf("DVD: hook enabled.\n");
}
DWORD WINAPI hook_QueryDosDeviceW(
const wchar_t *lpDeviceName,
wchar_t *lpTargetPath,
DWORD ucchMax)
{
DWORD ok;
wchar_t *p_dest;
wchar_t *dvd_string = L"CdRom";
ok = next_QueryDosDeviceW(
lpDeviceName,
lpTargetPath,
ucchMax);
p_dest = wcsstr (lpTargetPath, dvd_string);
if ( p_dest != NULL ) {
dprintf("DVD: Hiding DVD drive.\n");
return 0;
}
return ok;
}

11
hooklib/dvd.h Normal file
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@ -0,0 +1,11 @@
#pragma once
#include <windows.h>
#include <stdbool.h>
struct dvd_config {
bool enable;
};
void dvd_hook_init(const struct dvd_config *cfg, HINSTANCE self);

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@ -13,6 +13,8 @@ hooklib_lib = static_library(
'dll.h', 'dll.h',
'dns.c', 'dns.c',
'dns.h', 'dns.h',
'dvd.c',
'dvd.h',
'fdshark.c', 'fdshark.c',
'fdshark.h', 'fdshark.h',
'gfx.c', 'gfx.c',

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@ -7,6 +7,9 @@
#include "board/config.h" #include "board/config.h"
#include "board/sg-reader.h" #include "board/sg-reader.h"
#include "hooklib/config.h"
#include "hooklib/dvd.h"
#include "idzhook/config.h" #include "idzhook/config.h"
#include "idzhook/idz-dll.h" #include "idzhook/idz-dll.h"
@ -41,6 +44,7 @@ void idz_hook_config_load(
aime_config_load(&cfg->aime, filename); aime_config_load(&cfg->aime, filename);
idz_dll_config_load(&cfg->dll, filename); idz_dll_config_load(&cfg->dll, filename);
zinput_config_load(&cfg->zinput, filename); zinput_config_load(&cfg->zinput, filename);
dvd_config_load(&cfg->dvd, filename);
} }
void zinput_config_load(struct zinput_config *cfg, const wchar_t *filename) void zinput_config_load(struct zinput_config *cfg, const wchar_t *filename)

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@ -7,6 +7,8 @@
#include "board/sg-reader.h" #include "board/sg-reader.h"
#include "hooklib/dvd.h"
#include "idzhook/idz-dll.h" #include "idzhook/idz-dll.h"
#include "idzhook/zinput.h" #include "idzhook/zinput.h"
@ -16,6 +18,7 @@ struct idz_hook_config {
struct platform_config platform; struct platform_config platform;
struct amex_config amex; struct amex_config amex;
struct aime_config aime; struct aime_config aime;
struct dvd_config dvd;
struct idz_dll_config dll; struct idz_dll_config dll;
struct zinput_config zinput; struct zinput_config zinput;
}; };

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@ -8,7 +8,7 @@
#include "hook/process.h" #include "hook/process.h"
#include "hooklib/gfx.h" #include "hooklib/dvd.h"
#include "hooklib/serial.h" #include "hooklib/serial.h"
#include "hooklib/spike.h" #include "hooklib/spike.h"
@ -39,6 +39,7 @@ static DWORD CALLBACK idz_pre_startup(void)
serial_hook_init(); serial_hook_init();
zinput_hook_init(&idz_hook_cfg.zinput); zinput_hook_init(&idz_hook_cfg.zinput);
dvd_hook_init(&idz_hook_cfg.dvd, idz_hook_mod);
/* Initialize emulation hooks */ /* Initialize emulation hooks */

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@ -4,6 +4,7 @@
#include "board/config.h" #include "board/config.h"
#include "hooklib/config.h" #include "hooklib/config.h"
#include "hooklib/dvd.h"
#include "hooklib/gfx.h" #include "hooklib/gfx.h"
#include "mu3hook/config.h" #include "mu3hook/config.h"
@ -35,6 +36,7 @@ void mu3_hook_config_load(
platform_config_load(&cfg->platform, filename); platform_config_load(&cfg->platform, filename);
aime_config_load(&cfg->aime, filename); aime_config_load(&cfg->aime, filename);
dvd_config_load(&cfg->dvd, filename);
gfx_config_load(&cfg->gfx, filename); gfx_config_load(&cfg->gfx, filename);
mu3_dll_config_load(&cfg->dll, filename); mu3_dll_config_load(&cfg->dll, filename);
} }

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@ -4,6 +4,7 @@
#include "board/config.h" #include "board/config.h"
#include "hooklib/dvd.h"
#include "hooklib/gfx.h" #include "hooklib/gfx.h"
#include "mu3hook/mu3-dll.h" #include "mu3hook/mu3-dll.h"
@ -13,6 +14,7 @@
struct mu3_hook_config { struct mu3_hook_config {
struct platform_config platform; struct platform_config platform;
struct aime_config aime; struct aime_config aime;
struct dvd_config dvd;
struct gfx_config gfx; struct gfx_config gfx;
struct mu3_dll_config dll; struct mu3_dll_config dll;
}; };

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@ -8,6 +8,7 @@
#include "hook/process.h" #include "hook/process.h"
#include "hooklib/dvd.h"
#include "hooklib/serial.h" #include "hooklib/serial.h"
#include "hooklib/spike.h" #include "hooklib/spike.h"
@ -36,6 +37,7 @@ static DWORD CALLBACK mu3_pre_startup(void)
/* Hook Win32 APIs */ /* Hook Win32 APIs */
dvd_hook_init(&mu3_hook_cfg.dvd, mu3_hook_mod);
gfx_hook_init(&mu3_hook_cfg.gfx, mu3_hook_mod); gfx_hook_init(&mu3_hook_cfg.gfx, mu3_hook_mod);
serial_hook_init(); serial_hook_init();