Added temperature watchdog for CPU on linux using sysfs

include/ext_sysfs_cpu.h

@@ -0,0 +1,37 @@
+/**
+ * Author......: See docs/credits.txt
+ * License.....: MIT
+ */
+
+#ifndef _EXT_SYSFS_CPU_H
+#define _EXT_SYSFS_CPU_H
+
+#include <stdbool.h>
+
+static const char SYSFS_HWMON[] = "/sys/class/hwmon";
+
+static const char SENSOR_CORETEMP[] = "coretemp";
+static const char SENSOR_K10TEMP[]  = "k10temp";
+static const char SENSOR_K8TEMP[]   = "k8temp";
+static const char SENSOR_ACPITZ[]   = "acpitz";
+
+typedef int HM_ADAPTER_SYSFS_CPU;
+
+typedef void *SYSFS_CPU_LIB;
+
+typedef struct hm_sysfs_cpu_lib
+{
+  // currently not using libudev, because it can only read values, not set them, so using /sys instead
+
+  SYSFS_CPU_LIB lib;
+
+} hm_sysfs_cpu_lib_t;
+
+typedef hm_sysfs_cpu_lib_t SYSFS_CPU_PTR;
+
+bool sysfs_cpu_init (void *hashcat_ctx);
+void sysfs_cpu_close (void *hashcat_ctx);
+char *hm_SYSFS_CPU_get_syspath_hwmon ();
+int hm_SYSFS_CPU_get_temperature_current (void *hashcat_ctx, int *val);
+
+#endif // _EXT_SYSFS_CPU_H

include/types.h

@@ -1599,6 +1599,7 @@ typedef struct backend_ctx
   bool                need_nvml;
   bool                need_nvapi;
   bool                need_sysfs_amdgpu;
+  bool                need_sysfs_cpu;
   bool                need_iokit;
 
   int                 comptime;
@@ -1643,6 +1644,7 @@ typedef enum kernel_workload
 #include "ext_nvapi.h"
 #include "ext_nvml.h"
 #include "ext_sysfs_amdgpu.h"
+#include "ext_sysfs_cpu.h"
 #include "ext_iokit.h"
 
 typedef struct hm_attrs
@@ -1651,6 +1653,7 @@ typedef struct hm_attrs
   HM_ADAPTER_NVML         nvml;
   HM_ADAPTER_NVAPI        nvapi;
   HM_ADAPTER_SYSFS_AMDGPU sysfs_amdgpu;
+  HM_ADAPTER_SYSFS_CPU    sysfs_cpu;
   HM_ADAPTER_IOKIT        iokit;
 
   int od_version;
@@ -1676,6 +1679,7 @@ typedef struct hwmon_ctx
   void *hm_nvml;
   void *hm_nvapi;
   void *hm_sysfs_amdgpu;
+  void *hm_sysfs_cpu;
   void *hm_iokit;
 
   hm_attrs_t *hm_device;