Updated to 4.0.0

kernel/sulog.h

@@ -0,0 +1,93 @@
+#ifndef __KSU_SULOG_H
+#define __KSU_SULOG_H
+
+#include <linux/types.h>
+#include <linux/version.h>
+#include <linux/crc32.h> // needed for function dedup_calc_hash
+
+#define __SULOG_GATE 1
+
+#if __SULOG_GATE
+
+extern struct timezone sys_tz;
+
+#define SULOG_PATH "/data/adb/ksu/log/sulog.log"
+#define SULOG_MAX_SIZE (128 * 1024 * 1024) // 128MB
+#define SULOG_ENTRY_MAX_LEN 512
+#define SULOG_COMM_LEN 256
+#define DEDUP_SECS 10
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 10, 0)
+static inline size_t strlcpy(char *dest, const char *src, size_t size)
+{
+    return strscpy(dest, src, size);
+}
+#endif
+
+#define KSU_STRSCPY(dst, src, size) \
+    do { \
+        if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 13, 0)) { \
+            strscpy(dst, src, size); \
+        } else { \
+            strlcpy(dst, src, size); \
+        } \
+    } while (0)
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 8, 0)
+#include <linux/rtc.h>
+
+static inline void time64_to_tm(time64_t totalsecs, int offset, struct tm *result)
+{
+    struct rtc_time rtc_tm;
+    rtc_time64_to_tm(totalsecs, &rtc_tm);
+
+    result->tm_sec = rtc_tm.tm_sec;
+    result->tm_min = rtc_tm.tm_min;
+    result->tm_hour = rtc_tm.tm_hour;
+    result->tm_mday = rtc_tm.tm_mday;
+    result->tm_mon = rtc_tm.tm_mon;
+    result->tm_year = rtc_tm.tm_year;
+}
+#endif
+
+struct dedup_key {
+    u32 crc;
+    uid_t uid;
+    u8 type;
+    u8 _pad[1];
+};
+
+struct dedup_entry {
+    struct dedup_key key;
+    u64 ts_ns;
+};
+
+enum {
+    DEDUP_SU_GRANT = 0,
+    DEDUP_SU_ATTEMPT,
+    DEDUP_PERM_CHECK,
+    DEDUP_MANAGER_OP,
+    DEDUP_SYSCALL,
+};
+
+static inline u32 dedup_calc_hash(const char *content, size_t len)
+{
+    return crc32(0, content, len);
+}
+
+struct sulog_entry {
+    struct list_head list;
+    char content[SULOG_ENTRY_MAX_LEN];
+};
+
+void ksu_sulog_report_su_grant(uid_t uid, const char *comm, const char *method);
+void ksu_sulog_report_su_attempt(uid_t uid, const char *comm, const char *target_path, bool success);
+void ksu_sulog_report_permission_check(uid_t uid, const char *comm, bool allowed);
+void ksu_sulog_report_manager_operation(const char *operation, uid_t manager_uid, uid_t target_uid);
+void ksu_sulog_report_syscall(uid_t uid, const char *comm, const char *syscall, const char *args);
+
+int ksu_sulog_init(void);
+void ksu_sulog_exit(void);
+#endif // __SULOG_GATE
+
+#endif /* __KSU_SULOG_H */