chiark / gitweb /
resolved: properly process DNAME RRs
[elogind.git] / src / resolve / resolved-dns-rr.h
index 5d9f3e5..027f6ca 100644 (file)
@@ -26,6 +26,7 @@
 
 #include "util.h"
 #include "hashmap.h"
+#include "in-addr-util.h"
 
 typedef struct DnsResourceKey DnsResourceKey;
 typedef struct DnsResourceRecord DnsResourceRecord;
@@ -34,6 +35,8 @@ typedef struct DnsResourceRecord DnsResourceRecord;
 enum {
         DNS_CLASS_IN   = 0x01,
         DNS_CLASS_ANY  = 0xFF,
+        _DNS_CLASS_MAX,
+        _DNS_CLASS_INVALID = -1
 };
 
 /* DNS record types, see RFC 1035 */
@@ -48,9 +51,12 @@ enum {
         DNS_TYPE_MX    = 0x0F,
         DNS_TYPE_TXT   = 0x10,
         DNS_TYPE_AAAA  = 0x1C,
+        DNS_TYPE_LOC   = 0x1D,
         DNS_TYPE_SRV   = 0x21,
-        DNS_TYPE_SSHFP = 0x2C,
         DNS_TYPE_DNAME = 0x27,
+        DNS_TYPE_SSHFP = 0x2C,
+
+        DNS_TYPE_SPF   = 0x63,
 
         /* Special records */
         DNS_TYPE_ANY   = 0xFF,
@@ -59,20 +65,21 @@ enum {
         DNS_TYPE_TSIG  = 0xFA,
         DNS_TYPE_IXFR  = 0xFB,
         DNS_TYPE_AXFR  = 0xFC,
+        _DNS_TYPE_MAX,
+        _DNS_TYPE_INVALID = -1
 };
 
 struct DnsResourceKey {
-        uint16_t class;
-        uint16_t type;
-        char *name;
+        unsigned n_ref;
+        uint16_t class, type;
+        char *_name; /* don't access directy, use DNS_RESOURCE_KEY_NAME()! */
 };
 
 struct DnsResourceRecord {
         unsigned n_ref;
-
-        DnsResourceKey key;
+        DnsResourceKey *key;
         uint32_t ttl;
-
+        bool unparseable;
         union {
                 struct {
                         void *data;
@@ -88,16 +95,16 @@ struct DnsResourceRecord {
 
                 struct {
                         char *name;
-                } ptr, ns, cname;
+                } ptr, ns, cname, dname;
 
                 struct {
                         char *cpu;
                         char *os;
                 } hinfo;
 
-                /* struct { */
-                /*         char **list; */
-                /* } txt; */
+                struct {
+                        char **strings;
+                } txt;
 
                 struct {
                         struct in_addr in_addr;
@@ -106,23 +113,67 @@ struct DnsResourceRecord {
                 struct {
                         struct in6_addr in6_addr;
                 } aaaa;
+
+                struct {
+                        char *mname;
+                        char *rname;
+                        uint32_t serial;
+                        uint32_t refresh;
+                        uint32_t retry;
+                        uint32_t expire;
+                        uint32_t minimum;
+                } soa;
+
+                struct {
+                        uint16_t priority;
+                        char *exchange;
+                } mx;
+
+                struct {
+                        uint8_t version;
+                        uint8_t size;
+                        uint8_t horiz_pre;
+                        uint8_t vert_pre;
+                        uint32_t latitude;
+                        uint32_t longitude;
+                        uint32_t altitude;
+                } loc;
         };
 };
 
-void dns_resource_key_free(DnsResourceKey *key);
+static inline const char* DNS_RESOURCE_KEY_NAME(const DnsResourceKey *key) {
+        if (_unlikely_(!key))
+                return NULL;
 
+        if (key->_name)
+                return key->_name;
+
+        return (char*) key + sizeof(DnsResourceKey);
+}
+
+DnsResourceKey* dns_resource_key_new(uint16_t class, uint16_t type, const char *name);
+DnsResourceKey* dns_resource_key_new_consume(uint16_t class, uint16_t type, char *name);
+DnsResourceKey* dns_resource_key_ref(DnsResourceKey *key);
+DnsResourceKey* dns_resource_key_unref(DnsResourceKey *key);
+int dns_resource_key_equal(const DnsResourceKey *a, const DnsResourceKey *b);
+int dns_resource_key_match_rr(const DnsResourceKey *key, const DnsResourceRecord *rr);
+int dns_resource_key_match_cname(const DnsResourceKey *key, const DnsResourceRecord *rr);
 unsigned long dns_resource_key_hash_func(const void *i, const uint8_t hash_key[HASH_KEY_SIZE]);
 int dns_resource_key_compare_func(const void *a, const void *b);
+int dns_resource_key_to_string(const DnsResourceKey *key, char **ret);
+DEFINE_TRIVIAL_CLEANUP_FUNC(DnsResourceKey*, dns_resource_key_unref);
 
-DnsResourceRecord* dns_resource_record_new(void);
+DnsResourceRecord* dns_resource_record_new(DnsResourceKey *key);
+DnsResourceRecord* dns_resource_record_new_full(uint16_t class, uint16_t type, const char *name);
 DnsResourceRecord* dns_resource_record_ref(DnsResourceRecord *rr);
 DnsResourceRecord* dns_resource_record_unref(DnsResourceRecord *rr);
-
-DnsResourceRecord** dns_resource_record_freev(DnsResourceRecord **rrs, unsigned n);
-
+int dns_resource_record_new_reverse(DnsResourceRecord **ret, int family, const union in_addr_union *address, const char *name);
 int dns_resource_record_equal(const DnsResourceRecord *a, const DnsResourceRecord *b);
+int dns_resource_record_to_string(const DnsResourceRecord *rr, char **ret);
+DEFINE_TRIVIAL_CLEANUP_FUNC(DnsResourceRecord*, dns_resource_record_unref);
 
 const char *dns_type_to_string(uint16_t type);
-const char *dns_class_to_string(uint16_t type);
+int dns_type_from_string(const char *name, uint16_t *type);
 
-DEFINE_TRIVIAL_CLEANUP_FUNC(DnsResourceRecord*, dns_resource_record_unref);
+const char *dns_class_to_string(uint16_t type);
+int dns_class_from_string(const char *name, uint16_t *class);