Add versions to rspamd modules and workers

CMakeLists.txt

 SET(RSPAMD_VERSION_MINOR 2)
 SET(RSPAMD_VERSION_PATCH 0)
 
+# Keep two digits all the time
+SET(RSPAMD_VERSION_MAJOR_NUM ${RSPAMD_VERSION_MAJOR}0)
+SET(RSPAMD_VERSION_MINOR_NUM ${RSPAMD_VERSION_MINOR}0)
+SET(RSPAMD_VERSION_PATCH_NUM ${RSPAMD_VERSION_PATCH}0)
+
 IF(GIT_ID)
 	SET(GIT_VERSION 1)
 	SET(RSPAMD_ID "${GIT_ID}")

config.h.in

 #define RSPAMD_PREFIX "${CMAKE_INSTALL_PREFIX}"
 
 
-#ifdef GIT_VERSION
+#if defined(GIT_VERSION) && GIT_VERSION == 1
 # define RVERSION         "${RSPAMD_VERSION}"
 # define RID              "${RSPAMD_ID}"
+# define RSPAMD_VERSION_NUM 0x${RSPAMD_VERSION_MAJOR_NUM}${RSPAMD_VERSION_MINOR_NUM}${RSPAMD_VERSION_PATCH_NUM}${RSPAMD_ID}ULL
 #else
 # define RVERSION          "${RSPAMD_VERSION}"
+# define RSPAMD_VERSION_NUM 0x${RSPAMD_VERSION_MAJOR_NUM}${RSPAMD_VERSION_MINOR_NUM}${RSPAMD_VERSION_PATCH_NUM}0000000ULL
 # define RID "release"
 #endif
 

src/controller.c

 	TRUE,                   /* Non unique */
 	FALSE,                  /* Non threaded */
 	TRUE,                   /* Killable */
-	SOCK_STREAM             /* TCP socket */
+	SOCK_STREAM,            /* TCP socket */
+	RSPAMD_WORKER_VER       /* Version info */
 };
 /*
  * Worker's context

src/fuzzy_storage.c

 	FALSE,                      /* Unique */
 	FALSE,                      /* Threaded */
 	FALSE,                      /* Non killable */
-	SOCK_DGRAM                  /* UDP socket */
+	SOCK_DGRAM,                 /* UDP socket */
+	RSPAMD_WORKER_VER           /* Version info */
 };
 
 /* For evtimer */

src/hs_helper.c

 		TRUE,                       /* Unique */
 		FALSE,                      /* Non threaded */
 		TRUE,                       /* Killable */
-		SOCK_STREAM                 /* TCP socket */
+		SOCK_STREAM,                /* TCP socket */
+		RSPAMD_WORKER_VER           /* Version info */
 };
 
 static const gdouble default_max_time = 1.0;

src/http_proxy.c

 	FALSE,                      /* Non unique */
 	FALSE,                      /* Non threaded */
 	TRUE,                       /* Killable */
-	SOCK_STREAM                 /* TCP socket */
+	SOCK_STREAM,                /* TCP socket */
+	RSPAMD_WORKER_VER
 };
 
 struct rspamd_http_upstream {

src/lmtp.c

 	TRUE,                       /* Has socket */
 	FALSE,                      /* Non unique */
 	FALSE,                      /* Non threaded */
-	TRUE                        /* Killable */
+	TRUE,                       /* Killable */
+	RSPAMD_WORKER_VER           /* Version info */
 };
 
 #ifndef HAVE_SA_SIGINFO

src/lua_worker.c

 	FALSE,                  /* Non unique */
 	FALSE,                  /* Non threaded */
 	TRUE,                   /* Killable */
-	SOCK_STREAM             /* TCP socket */
+	SOCK_STREAM,            /* TCP socket */
+	RSPAMD_WORKER_VER       /* Version info */
 };
 
 /*

src/plugins/chartable.c

 	chartable_module_init,
 	chartable_module_config,
 	chartable_module_reconfig,
-	NULL
+	NULL,
+	RSPAMD_MODULE_VER
 };
 
 struct chartable_ctx {

src/plugins/dkim_check.c

 	dkim_module_init,
 	dkim_module_config,
 	dkim_module_reconfig,
-	NULL
+	NULL,
+	RSPAMD_MODULE_VER
 };
 
 static void

src/plugins/fuzzy_check.c

 	fuzzy_check_module_init,
 	fuzzy_check_module_config,
 	fuzzy_check_module_reconfig,
-	fuzzy_attach_controller
+	fuzzy_attach_controller,
+	RSPAMD_MODULE_VER
 };
 
 static void

src/plugins/surbl.c

 	surbl_module_init,
 	surbl_module_config,
 	surbl_module_reconfig,
-	NULL
+	NULL,
+	RSPAMD_MODULE_VER
 };
 
 static void

src/rspamd.h

 	gboolean enabled;											/**< true if module is enabled in configuration		*/
 };
 
+#ifndef WITH_HYPERSCAN
+#define RSPAMD_FEATURE_HYPERSCAN "0"
+#else
+#define RSPAMD_FEATURE_HYPERSCAN "1"
+#endif
+#ifndef WITH_PCRE2
+#define RSPAMD_FEATURE_PCRE2 "0"
+#else
+#define RSPAMD_FEATURE_PCRE2 "1"
+#endif
+#ifndef WITH_FANN
+#define RSPAMD_FEATURE_FANN "0"
+#else
+#define RSPAMD_FEATURE_FANN "1"
+#endif
+#ifndef WITH_SNOWBALL
+#define RSPAMD_FEATURE_SNOWBALL "0"
+#else
+#define RSPAMD_FEATURE_SNOWBALL "1"
+#endif
+
+#define RSPAMD_FEATURES \
+		RSPAMD_FEATURE_HYPERSCAN RSPAMD_FEATURE_PCRE2 \
+		RSPAMD_FEATURE_FANN RSPAMD_FEATURE_SNOWBALL
+
+#define RSPAMD_MODULE_VER \
+		0x1, /* Module version */ \
+		RSPAMD_VERSION_NUM, /* Rspamd version */ \
+		RSPAMD_FEATURES /* Compilation features */ \
+
+#define RSPAMD_WORKER_VER \
+		0x1, /* Worker version */ \
+		RSPAMD_VERSION_NUM, /* Rspamd version */ \
+		RSPAMD_FEATURES /* Compilation features */ \
 /**
  * Module
  */
 	int (*module_reconfig_func)(struct rspamd_config *cfg);
 	int (*module_attach_controller_func)(struct module_ctx *ctx,
 		GHashTable *custom_commands);
+	guint module_version;
+	guint64 rspamd_version;
+	const gchar *rspamd_features;
 } module_t;
 
 typedef struct worker_s {
 	gboolean threaded;
 	gboolean killable;
 	gint listen_type;
+	guint module_version;
+	guint64 rspamd_version;
+	const gchar *rspamd_features;
 } worker_t;
 
 struct pidfh;

src/smtp.c

 	FALSE,                      /* Non unique */
 	FALSE,                      /* Non threaded */
 	TRUE,                       /* Killable */
-	SOCK_STREAM                 /* TCP socket */
+	SOCK_STREAM,                /* TCP socket */
+	RSPAMD_WORKER_VER           /* Version info */
 };
 
 static gboolean

src/smtp_proxy.c

 	FALSE,                      /* Non unique */
 	FALSE,                      /* Non threaded */
 	TRUE,                       /* Killable */
-	SOCK_STREAM                 /* TCP socket */
+	SOCK_STREAM,                /* TCP socket */
+	RSPAMD_WORKER_VER           /* Version info */
 };
 
 struct smtp_proxy_ctx {

src/worker.c

 	FALSE,                      /* Non unique */
 	FALSE,                      /* Non threaded */
 	TRUE,                       /* Killable */
-	SOCK_STREAM                 /* TCP socket */
+	SOCK_STREAM,                /* TCP socket */
+	RSPAMD_WORKER_VER           /* Version info */
 };
 
 #define msg_err_ctx(...) rspamd_default_log_function(G_LOG_LEVEL_CRITICAL, \