64bits fixes.
[apps/pfixtools.git] / postlicyd / filter.h
index db8e457..3047803 100644 (file)
 
 #include "common.h"
 #include "filter_tokens.h"
+#include "hook_tokens.h"
+#include "param_tokens.h"
 #include "query.h"
 #include "array.h"
 
 typedef filter_token filter_type_t;
+typedef hook_token   filter_result_t;
+typedef param_token  filter_param_id_t;
 
 typedef struct filter_hook_t {
-    char *name;
+    filter_result_t type;
     char *value;
 
     bool postfix;
@@ -52,11 +56,12 @@ typedef struct filter_hook_t {
 } filter_hook_t;
 ARRAY(filter_hook_t)
 
-typedef struct filter_params_t {
-    char *name;
-    char *value;
-} filter_params_t;
-ARRAY(filter_params_t)
+typedef struct filter_param_t {
+    filter_param_id_t type;
+    char  *value;
+    int    value_len;
+} filter_param_t;
+ARRAY(filter_param_t)
 
 typedef struct filter_t {
     char *name;
@@ -65,21 +70,39 @@ typedef struct filter_t {
     A(filter_hook_t)   hooks;
     void *data;
 
-    A(filter_params_t) params;
+    A(filter_param_t) params;
+
+    /* Loop checking flags.
+     */
+    int last_seen;
 } filter_t;
 ARRAY(filter_t)
 
-#define FILTER_INIT { NULL, FTK_UNKNOWN, ARRAY_INIT, NULL, ARRAY_INIT }
+#define FILTER_INIT { NULL, FTK_UNKNOWN, ARRAY_INIT, NULL, ARRAY_INIT, -1 }
+#define CHECK_FILTER(Filter)                                                   \
+    assert(Filter != FTK_UNKNOWN && Filter != FTK_count                        \
+           && "Unknown filter type")
+#define CHECK_HOOK(Hook)                                                       \
+    assert(Hook != HTK_UNKNOWN && Hook != HTK_count                            \
+           && "Unknown hook")
+#define CHECK_PARAM(Param)                                                     \
+    assert(Param != ATK_UNKNOWN && Param != ATK_count                          \
+           && "Unknown param")
 
-typedef const char *filter_result_t;
 typedef filter_result_t (*filter_runner_t)(const filter_t *filter,
                                            const query_t *query);
 typedef bool (*filter_constructor_t)(filter_t *filter);
 typedef void (*filter_destructor_t)(filter_t *filter);
 
 __attribute__((nonnull(1,4)))
-void filter_register(const char *type, filter_constructor_t constructor,
-                     filter_destructor_t destructor, filter_runner_t runner);
+filter_type_t filter_register(const char *type, filter_constructor_t constructor,
+                              filter_destructor_t destructor, filter_runner_t runner);
+
+__attribute__((nonnull(2)))
+filter_result_t filter_hook_register(filter_type_t filter, const char *name);
+
+__attribute__((nonnull(2)))
+filter_param_id_t filter_param_register(filter_type_t filter, const char *name);
 
 __attribute__((nonnull(1)))
 static inline void filter_init(filter_t *filter)
@@ -89,24 +112,24 @@ static inline void filter_init(filter_t *filter)
 }
 
 __attribute__((nonnull(1,2)))
-void filter_set_name(filter_t *filter, const char *name, ssize_t len);
+void filter_set_name(filter_t *filter, const char *name, int len);
 
 __attribute__((nonnull(1,2)))
-bool filter_set_type(filter_t *filter, const char *type, ssize_t len);
+bool filter_set_type(filter_t *filter, const char *type, int len);
 
 __attribute__((nonnull(1,2,4)))
-bool filter_add_param(filter_t *filter, const char *name, ssize_t name_len,
-                      const char *value, ssize_t value_len);
+bool filter_add_param(filter_t *filter, const char *name, int name_len,
+                      const char *value, int value_len);
 
 __attribute__((nonnull(1,2,4)))
-bool filter_add_hook(filter_t *filter, const char *name, ssize_t name_len,
-                     const char *value, ssize_t value_len);
+bool filter_add_hook(filter_t *filter, const char *name, int name_len,
+                     const char *value, int value_len);
 
 __attribute__((nonnull(1)))
 bool filter_build(filter_t *filter);
 
 __attribute__((nonnull(1,2)))
-static inline int filter_find_with_name(A(filter_t) *array, const char *name)
+static inline int filter_find_with_name(const A(filter_t) *array, const char *name)
 {
     int start = 0;
     int end   = array->len;
@@ -129,17 +152,18 @@ static inline int filter_find_with_name(A(filter_t) *array, const char *name)
 __attribute__((nonnull(1,2)))
 bool filter_update_references(filter_t *filter, A(filter_t) *array);
 
+__attribute__((nonnull(1)))
+bool filter_check_safety(A(filter_t) *array);
+
 __attribute__((nonnull(1)))
 static inline void filter_hook_wipe(filter_hook_t *hook)
 {
-    p_delete(&hook->name);
     p_delete(&hook->value);
 }
 
 __attribute__((nonnull(1)))
-static inline void filter_params_wipe(filter_params_t *param)
+static inline void filter_params_wipe(filter_param_t *param)
 {
-    p_delete(&param->name);
     p_delete(&param->value);
 }
 
@@ -147,7 +171,49 @@ __attribute__((nonnull(1)))
 void filter_wipe(filter_t *filter);
 
 __attribute__((nonnull(1,2)))
-filter_result_t filter_run(const filter_t *filter, const query_t *query);
+const filter_hook_t *filter_run(const filter_t *filter, const query_t *query);
+
+__attribute__((nonnull(1,2)))
+bool filter_test(const filter_t *filter, const query_t *query, filter_result_t expt);
+
+
+/* Helpers
+ */
 
+#define FILTER_PARAM_PARSE_STRING(Param, Dest)                                 \
+    case ATK_ ## Param: {                                                      \
+        (Dest) = param->value;                                                 \
+    } break
+
+#define FILTER_PARAM_PARSE_INT(Param, Dest)                                    \
+    case ATK_ ## Param: {                                                      \
+        char *next;                                                            \
+        (Dest) = strtol(param->value, &next, 10);                              \
+        PARSE_CHECK(!*next, "invalid %s value %.*s", atokens[ATK_ ## Param],   \
+                    param->value_len, param->value);                           \
+     } break
+
+#define FILTER_PARAM_PARSE_BOOLEAN(Param, Dest)                                \
+    case ATK_ ## Param: {                                                      \
+        if (param->value_len == 1 && param->value[0] == '1') {                 \
+            (Dest) = true;                                                     \
+        } else if (param->value_len == 1 && param->value[0] == '0') {          \
+            (Dest) = false;                                                    \
+        } else if (param->value_len == 4                                       \
+                   && ascii_tolower(param->value[0]) == 't') {                 \
+            (Dest) = ascii_tolower(param->value[1]) == 'r'                     \
+                  && ascii_tolower(param->value[2]) == 'u'                     \
+                  && ascii_tolower(param->value[3]) == 'e';                    \
+        } else if (param->value_len == 5                                       \
+                   && ascii_tolower(param->value[0]) == 'f') {                 \
+            (Dest) = ascii_tolower(param->value[1]) == 'a'                     \
+                  && ascii_tolower(param->value[2]) == 'l'                     \
+                  && ascii_tolower(param->value[3]) == 's'                     \
+                  && ascii_tolower(param->value[4]) == 'e';                    \
+        } else {                                                               \
+            PARSE_CHECK(false, "invalid %s value %.*s", atokens[ATK_ ## Param],\
+                        param->value_len, param->value);                       \
+        }                                                                      \
+    } break
 
 #endif