Global (macOS): queries SMBIOS data directly on Intel Mac

2026-10-29 08:13:44 +01:00 · 2026-03-21 18:38:01 +08:00
parent a4bc3c812d
commit ab17fb08ef
4 changed files with 93 additions and 8 deletions
@@ -536,4 +536,70 @@ const FFSmbiosHeaderTable* ffGetSmbiosHeaderTable()

    return &table;
 }
+#elif defined(__APPLE__)
+#include "common/apple/cf_helpers.h"
+
+const FFSmbiosHeaderTable* ffGetSmbiosHeaderTable()
+{
+    static CFDataRef smbiosDataBuffer;
+    static FFSmbiosHeaderTable table;
+
+    if (smbiosDataBuffer == NULL)
+    {
+        FF_DEBUG("Initializing SMBIOS buffer on Apple platform");
+
+        FF_IOOBJECT_AUTO_RELEASE io_registry_entry_t registryEntry = IOServiceGetMatchingService(MACH_PORT_NULL, IOServiceMatching("AppleSMBIOS"));
+
+        if (!registryEntry)
+        {
+            FF_DEBUG("IOServiceGetMatchingService() failed to find AppleSMBIOS");
+            smbiosDataBuffer = CFDataCreate(NULL, NULL, 0);
+            return NULL;
+        }
+
+        FF_DEBUG("AppleSMBIOS service found, retrieving SMBIOS data");
+        smbiosDataBuffer = IORegistryEntryCreateCFProperty(registryEntry, CFSTR("SMBIOS"), kCFAllocatorDefault, kNilOptions);
+        if (!smbiosDataBuffer)
+        {
+            FF_DEBUG("IORegistryEntryCreateCFProperty() failed to get SMBIOS data");
+            smbiosDataBuffer = CFDataCreate(NULL, NULL, 0);
+            return NULL;
+        }
+
+        FF_DEBUG("Successfully retrieved SMBIOS data: %lu bytes", CFDataGetLength(smbiosDataBuffer));
+
+        FF_DEBUG("Parsing SMBIOS table structures");
+        FF_MAYBE_UNUSED int structureCount = 0;
+        for (
+            const FFSmbiosHeader* header = (const FFSmbiosHeader*) CFDataGetBytePtr(smbiosDataBuffer),
+            *end = (const FFSmbiosHeader*) ((const uint8_t*) header + CFDataGetLength(smbiosDataBuffer));
+            header < end;
+            header = ffSmbiosNextEntry(header)
+        )
+        {
+            if (header->Type < FF_SMBIOS_TYPE_END_OF_TABLE)
+            {
+                if (!table[header->Type]) {
+                    table[header->Type] = header;
+                    FF_DEBUG("Found SMBIOS structure type %u, handle 0x%04X, length %u",
+                        header->Type, header->Handle, header->Length);
+                    structureCount++;
+                }
+            }
+            else if (header->Type == FF_SMBIOS_TYPE_END_OF_TABLE) {
+                FF_DEBUG("Reached end-of-table marker");
+                break;
+            }
+        }
+        FF_DEBUG("Parsed %d SMBIOS structures", structureCount);
+    }
+
+    if (CFDataGetLength(smbiosDataBuffer) == 0)
+    {
+        FF_DEBUG("No valid SMBIOS data available");
+        return NULL;
+    }
+
+    return &table;
+}
 #endif