Util: moves util/*.c to util/impl/

2026-11-08 14:10:11 +01:00 · 2026-01-06 09:42:54 +08:00
parent 61690a1804
commit 874f3918b7
53 changed files with 232 additions and 227 deletions
@@ -0,0 +1,95 @@
+#include "util/kmod.h"
+
+#if __linux__
+#include "util/io.h"
+
+bool ffKmodLoaded(const char* modName)
+{
+    static FFstrbuf modules;
+    if (modules.chars == NULL)
+    {
+        ffStrbufInitS(&modules, "\n");
+        ffAppendFileBuffer("/proc/modules", &modules);
+    }
+
+    if (modules.length == 0) return false;
+
+    uint32_t len = (uint32_t) strlen(modName);
+    if (len > 250) return false;
+
+    char temp[256];
+    temp[0] = '\n';
+    memcpy(temp + 1, modName, len);
+    temp[1 + len] = ' ';
+    return memmem(modules.chars, modules.length, temp, len + 2) != NULL;
+}
+#elif __FreeBSD__
+#include <sys/param.h>
+#include <sys/module.h>
+
+bool ffKmodLoaded(const char* modName)
+{
+    return modfind(modName) >= 0;
+}
+#elif __NetBSD__
+#include "util/stringUtils.h"
+
+#include <sys/module.h>
+#include <sys/param.h>
+
+typedef struct __attribute__((__packed__)) FFNbsdModList
+{
+    int len;
+    modstat_t mods[];
+} FFNbsdModList;
+
+bool ffKmodLoaded(const char* modName)
+{
+    static FFNbsdModList* list = NULL;
+
+    if (list == NULL)
+    {
+        struct iovec iov = {};
+
+        for (size_t len = 8192;; len = iov.iov_len)
+        {
+            iov.iov_len = len;
+            iov.iov_base = realloc(iov.iov_base, len);
+            if (modctl(MODCTL_STAT, &iov) < 0)
+            {
+                free(iov.iov_base);
+                return true; // ignore errors
+            }
+
+            if (len >= iov.iov_len) break;
+        }
+        list = (FFNbsdModList*) iov.iov_base;
+    }
+
+    for (int i = 0; i < list->len; i++)
+    {
+        if (ffStrEquals(list->mods[i].ms_name, modName))
+            return true;
+    }
+
+    return false;
+}
+#elif __APPLE__
+#include "util/apple/cf_helpers.h"
+#include <IOKit/kext/KextManager.h>
+#include <CoreFoundation/CoreFoundation.h>
+
+bool ffKmodLoaded(const char* modName)
+{
+    FF_CFTYPE_AUTO_RELEASE CFStringRef name = CFStringCreateWithCString(kCFAllocatorDefault, modName, kCFStringEncodingUTF8);
+    FF_CFTYPE_AUTO_RELEASE CFArrayRef identifiers = CFArrayCreate(kCFAllocatorDefault, (const void**) &name, 1, &kCFTypeArrayCallBacks);
+    FF_CFTYPE_AUTO_RELEASE CFArrayRef keys = CFArrayCreate(kCFAllocatorDefault, NULL, 0, NULL);
+    FF_CFTYPE_AUTO_RELEASE CFDictionaryRef kextInfo = KextManagerCopyLoadedKextInfo(identifiers, keys);
+    return CFDictionaryContainsKey(kextInfo, name);
+}
+#else
+bool ffKmodLoaded(FF_MAYBE_UNUSED const char* modName)
+{
+    return true; // Don't generate kernel module related errors
+}
+#endif