Router: introducing routing on client address.

src/nxt_http_route_addr.h

@@ -0,0 +1,73 @@
+
+/*
+ * Copyright (C) Axel Duch
+ * Copyright (C) NGINX, Inc.
+ */
+
+#include <nxt_conf.h>
+
+#ifndef _NXT_HTTP_ROUTE_ADDR_H_INCLUDED_
+#define _NXT_HTTP_ROUTE_ADDR_H_INCLUDED_
+
+
+enum {
+    NXT_HTTP_ROUTE_ADDR_ANY = 0,
+    NXT_HTTP_ROUTE_ADDR_RANGE,
+    NXT_HTTP_ROUTE_ADDR_EXACT,
+    NXT_HTTP_ROUTE_ADDR_CIDR,
+};
+
+
+enum {
+    NXT_ADDR_PATTERN_PORT_ERROR = NXT_OK + 1,
+    NXT_ADDR_PATTERN_CV_TYPE_ERROR,
+    NXT_ADDR_PATTERN_LENGTH_ERROR,
+    NXT_ADDR_PATTERN_FORMAT_ERROR,
+    NXT_ADDR_PATTERN_RANGE_OVERLAP_ERROR,
+    NXT_ADDR_PATTERN_CIDR_ERROR,
+    NXT_ADDR_PATTERN_NO_IPv6_ERROR,
+};
+
+
+typedef struct {
+    in_addr_t  start;
+    in_addr_t  end;
+} nxt_http_route_addr_range_t;
+
+
+#if (NXT_INET6)
+typedef struct {
+    struct in6_addr  start;
+    struct in6_addr  end;
+} nxt_http_route_in6_addr_range_t;
+#endif
+
+
+typedef struct {
+    uint8_t       match_type:2;
+    uint8_t       negative:1;
+    uint8_t       addr_family;
+
+    struct {
+        uint16_t  start;
+        uint16_t  end;
+    } port;
+} nxt_http_route_addr_base_t;
+
+
+typedef struct {
+    nxt_http_route_addr_base_t           base;
+
+    union {
+        nxt_http_route_addr_range_t      v4;
+#if (NXT_INET6)
+        nxt_http_route_in6_addr_range_t  v6;
+#endif
+    } addr;
+} nxt_http_route_addr_pattern_t;
+
+
+NXT_EXPORT nxt_int_t nxt_http_route_addr_pattern_parse(nxt_mp_t *mp,
+    nxt_http_route_addr_pattern_t *pattern, nxt_conf_value_t *cv);
+
+#endif /* _NXT_HTTP_ROUTE_ADDR_H_INCLUDED_ */