[PATCH v3 1/4] kernel32: Return BIOS info from GetSystemFirmwareTable on Linux
Alex Henrie
alexhenrie24 at gmail.com
Wed Jun 13 09:30:28 CDT 2018
Signed-off-by: Alex Henrie <alexhenrie24 at gmail.com>
---
dlls/kernel32/cpu.c | 135 ++++++++++++++++++++++++++++++++++++++++
dlls/kernel32/process.c | 10 ---
2 files changed, 135 insertions(+), 10 deletions(-)
diff --git a/dlls/kernel32/cpu.c b/dlls/kernel32/cpu.c
index ec1fd0f90d..4dd9bb628a 100644
--- a/dlls/kernel32/cpu.c
+++ b/dlls/kernel32/cpu.c
@@ -46,8 +46,37 @@
WINE_DEFAULT_DEBUG_CHANNEL(reg);
+#include "pshpack1.h"
+
+struct smbios_prologue {
+ BYTE calling_method;
+ BYTE major_version;
+ BYTE minor_version;
+ BYTE revision;
+ DWORD length;
+};
+
+struct smbios_bios {
+ BYTE type;
+ BYTE length;
+ WORD handle;
+ BYTE manufacturer;
+ BYTE version;
+ WORD start;
+ BYTE date;
+ BYTE size;
+ UINT64 characteristics;
+};
+
+#include "poppack.h"
+
#define SHARED_DATA ((KSHARED_USER_DATA*)0x7ffe0000)
+/* Firmware table providers */
+#define ACPI 0x41435049
+#define FIRM 0x4649524D
+#define RSMB 0x52534D42
+
/****************************************************************************
* QueryPerformanceCounter (KERNEL32.@)
*
@@ -336,3 +365,109 @@ DWORD64 WINAPI GetEnabledXStateFeatures(void)
FIXME("\n");
return 0;
}
+
+static inline void copy_smbios_string(void **buffer, char *string, size_t string_size)
+{
+ if (!string) return;
+ strcpy(*buffer, string);
+ *buffer = (char*)(*buffer) + string_size;
+}
+
+#ifdef linux
+static char* get_smbios_string(const char *path, size_t *string_size)
+{
+ FILE *file = fopen(path, "r");
+ char *ret = NULL;
+ *string_size = 0;
+ if (file)
+ {
+ *string_size = getline(&ret, string_size, file) + 1;
+ fclose(file);
+ if (*string_size >= 2 && ret[*string_size - 2] == '\n')
+ {
+ ret[*string_size - 2] = 0;
+ (*string_size)--;
+ }
+ if (*string_size == 1)
+ {
+ free(ret);
+ ret = NULL;
+ *string_size = 0;
+ }
+ }
+ return ret;
+}
+#endif
+
+/***********************************************************************
+ * GetSystemFirmwareTable (KERNEL32.@)
+ */
+UINT WINAPI GetSystemFirmwareTable(DWORD provider, DWORD id, void *buffer, DWORD size)
+{
+ FIXME("(%08x %08x %p %d): semi-stub\n", provider, id, buffer, size);
+ switch (provider)
+ {
+ case RSMB:
+ {
+#ifdef linux
+ char *bios_manufacturer, *bios_version, *bios_date;
+ size_t bios_manufacturer_size, bios_version_size, bios_date_size;
+ size_t required_size = sizeof(struct smbios_prologue);
+ BYTE string_count;
+ struct smbios_prologue *prologue;
+ struct smbios_bios *bios;
+
+ bios_manufacturer = get_smbios_string("/sys/class/dmi/id/bios_vendor", &bios_manufacturer_size);
+ bios_version = get_smbios_string("/sys/class/dmi/id/bios_version", &bios_version_size);
+ bios_date = get_smbios_string("/sys/class/dmi/id/bios_date", &bios_date_size);
+
+ required_size += sizeof(struct smbios_bios);
+ required_size += max(bios_manufacturer_size + bios_version_size + bios_date_size + 1, 2);
+
+ if (required_size > size)
+ return required_size;
+
+ prologue = (struct smbios_prologue*)buffer;
+ prologue->calling_method = 0;
+ prologue->major_version = 2;
+ prologue->minor_version = 0;
+ prologue->revision = 0;
+ prologue->length = required_size - sizeof(struct smbios_prologue);
+ buffer = (char*)buffer + sizeof(struct smbios_prologue);
+
+ string_count = 0;
+ bios = (struct smbios_bios*)buffer;
+ bios->type = 0;
+ bios->length = sizeof(struct smbios_bios);
+ bios->handle = 0;
+ bios->manufacturer = bios_manufacturer ? ++string_count : 0;
+ bios->version = bios_version ? ++string_count : 0;
+ bios->start = 0;
+ bios->date = bios_date ? ++string_count : 0;
+ bios->size = 0;
+ bios->characteristics = 0x4; /* not supported */
+ buffer = (char*)buffer + sizeof(struct smbios_bios);
+
+ if (string_count)
+ {
+ copy_smbios_string(&buffer, bios_manufacturer, bios_manufacturer_size);
+ copy_smbios_string(&buffer, bios_version, bios_version_size);
+ copy_smbios_string(&buffer, bios_date, bios_date_size);
+ memset(buffer, 0, 1);
+ }
+ else
+ {
+ memset(buffer, 0, 2);
+ }
+
+ free(bios_manufacturer);
+ free(bios_version);
+ free(bios_date);
+
+ return required_size;
+#endif
+ }
+ }
+ SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
+ return 0;
+}
diff --git a/dlls/kernel32/process.c b/dlls/kernel32/process.c
index ff56e9a692..6adf08d257 100644
--- a/dlls/kernel32/process.c
+++ b/dlls/kernel32/process.c
@@ -4126,16 +4126,6 @@ HRESULT WINAPI UnregisterApplicationRestart(void)
return S_OK;
}
-/***********************************************************************
- * GetSystemFirmwareTable (KERNEL32.@)
- */
-UINT WINAPI GetSystemFirmwareTable(DWORD provider, DWORD id, PVOID buffer, DWORD size)
-{
- FIXME("(%d %d %p %d):stub\n", provider, id, buffer, size);
- SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
- return 0;
-}
-
struct proc_thread_attr
{
DWORD_PTR attr;
--
2.17.1
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