Diff: dns-sd.h

Revision:

0:0df3300689d2

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dns-sd.h	Tue Aug 11 17:05:41 2015 +0000
@@ -0,0 +1,181 @@
+/*
+    Edited by JB RYU, KOR - 2015
+    
+    DNS-headers and values.
+    
+    Actually, Defines for DNS-type-values are not necessary.
+    LWIP NETIF has defines for DNS formats already.
+*/
+
+#ifndef DNS_SD_H_
+#define DNS_SD_H_
+
+#include <cstdint>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define UPPERBYTE(word)\
+    (unsigned char)(word >> 8)
+#define LOWERBYTE(word)\
+    (unsigned char)(word)
+
+/** \internal The DNS message header. */
+#define DNS_FLAG1_RESPONSE        0x80
+#define DNS_FLAG1_OPCODE_STATUS   0x10
+#define DNS_FLAG1_OPCODE_INVERSE  0x08
+#define DNS_FLAG1_OPCODE_STANDARD 0x00
+#define DNS_FLAG1_AUTHORATIVE     0x04
+#define DNS_FLAG1_TRUNC           0x02
+#define DNS_FLAG1_RD              0x01
+#define DNS_FLAG2_RA              0x80
+#define DNS_FLAG2_ERR_MASK        0x0f
+#define DNS_FLAG2_ERR_NONE        0x00
+#define DNS_FLAG2_ERR_NAME        0x03
+
+/** \internal The DNS question message structure. */
+struct dns_question 
+{
+  uint16_t type;
+  uint16_t obj;
+};
+
+struct dns_hdr 
+{
+  uint16_t id;
+  uint8_t flags1, flags2;
+  uint16_t numquestions;
+  uint16_t numanswers;
+  uint16_t numauthrr;
+  uint16_t numextrarr;
+};
+
+/** \internal The DNS answer message structure. */
+struct dns_answer 
+{
+  /* DNS answer record starts with either a domain name or a pointer
+   * to a name already present somewhere in the packet. */
+  uint16_t type;
+  uint16_t obj;
+  uint16_t ttl[2];
+  uint16_t len;
+#if NET_IPV6
+  uint8_t ipaddr[16];
+#else
+  uint8_t ipaddr[4];
+#endif
+};
+
+#define DNS_TYPE_A      1
+#define DNS_TYPE_CNAME  5
+#define DNS_TYPE_PTR   12
+#define DNS_TYPE_MX    15
+#define DNS_TYPE_TXT   16
+#define DNS_TYPE_AAAA  28
+#define DNS_TYPE_SRV   33
+#define DNS_TYPE_ANY   255
+#define DNS_TYPE_NSEC  47
+
+#if NET_IPV6
+#define NATIVE_DNS_TYPE DNS_TYPE_AAAA /* IPv6 */
+#else
+#define NATIVE_DNS_TYPE DNS_TYPE_A    /* IPv4 */
+#endif
+
+#define DNS_CLASS_IN        0x0001
+#define DNS_CASH_FLUSH      0x8000
+#define DNS_CLASS_ANY       0z00ff
+
+/* all entities include its length */
+#define MAX_DOMAIN_LEN                  64
+#define MAX_INSTANCE_NAME_LEN       64
+#define MAX_SUBTYPE_NAME_LEN        69
+#define MAX_SERVICE_NAME_LEN        22
+#define MAX_SERVICE_DOMAIN_LEN  64
+#define MAX_PARENT_DOMAIN_LEN       100 //.local so...
+#define MDNS_P_DOMAIN_LEN               5
+
+#define PTR_QUERY_NAME_LEN      18
+#pragma pack (push, 1)
+typedef struct  
+{
+  /* DNS answer record starts with either a domain name or a pointer
+   * to a name already present somewhere in the packet. */
+  uint16_t  type;
+  uint16_t  obj;
+  uint16_t  ttl[2];
+  uint16_t  len;
+    char            name[MAX_INSTANCE_NAME_LEN
+        + MAX_SERVICE_NAME_LEN + MDNS_P_DOMAIN_LEN];
+}PTR_ANS;
+
+typedef struct
+{
+    uint16_t    type;
+  uint16_t  obj;
+  uint16_t  ttl[2];
+  uint16_t  len;    
+    uint16_t    pri;
+    uint16_t    wei;
+    uint16_t    port;
+    char        name[MAX_DOMAIN_LEN
+        + MDNS_P_DOMAIN_LEN];
+}SRV_ANS;
+
+typedef struct
+{
+    uint16_t    type;
+  uint16_t  obj;
+  uint16_t  ttl[2];
+  uint16_t  len;    
+    char            txt[1024];
+}TXT_ANS;
+
+typedef struct
+{
+    uint8_t len_txtvers;
+    char txtvers[10];
+    uint8_t len_dcap;
+    char dcap[10];
+    uint8_t len_path;
+    char path[10];
+    uint8_t len_https;
+    char https[10];
+    uint8_t len_level;
+    char level[10];
+}__SEP_TXT;
+
+typedef struct
+{
+    uint8_t inst_len;
+    char instance[63]; //RYU-PC
+    uint8_t serv_len;
+    char service[16]; //_http
+    uint8_t trl_len;
+    char trl[4];            //_tcp
+    uint8_t domain_len;
+    char domain[5]; //local
+    __SEP_TXT txt;
+}__SD_DOMAIN;
+#pragma pack (pop)
+
+#define N_CONTIKI_SERVICES  1
+typedef struct
+{
+    int numbers;
+    __SD_DOMAIN elements[N_CONTIKI_SERVICES];
+}MY_SD_DOMAINS;
+
+typedef struct
+{
+    int numbers;
+    uint8_t reqs[10];
+}QR_MAP;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+