dns: make the dns name resolver a plugin

[vpp.git] / src / vnet / dns / dns_packet.h

diff --git a/src/vnet/dns/dns_packet.h b/src/vnet/dns/dns_packet.h
deleted file mode 100644 (file)
index da5ddfa..0000000
--- a/src/vnet/dns/dns_packet.h
+++ /dev/null
@@ -1,156 +0,0 @@
-/*
- * Copyright (c) 2015 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef included_dns_packet_h
-#define included_dns_packet_h
-
-/**
- * DNS packet header format
- */
-
-/* *INDENT-OFF* */
-typedef CLIB_PACKED (struct {
-  u16 id;                       /**< transaction ID */
-  u16 flags;                    /**< flags  */
-  u16 qdcount;                  /**< number of questions */
-  u16 anscount;                 /**< number of answers */
-  u16 nscount;                  /**< number of name servers */
-  u16 arcount;                  /**< number of additional records */
-}) dns_header_t;
-/* *INDENT-ON* */
-
-#define DNS_RCODE_MASK (0xf)
-#define DNS_RCODE_NO_ERROR 0
-#define DNS_RCODE_FORMAT_ERROR 1
-#define DNS_RCODE_SERVER_FAILURE 2
-#define DNS_RCODE_NAME_ERROR 3
-#define DNS_RCODE_NOT_IMPLEMENTED 4
-#define DNS_RCODE_REFUSED 5
-
-#define DNS_RA (1<<7)          /**< recursion available */
-#define DNS_RD (1<<8)          /**< recursion desired */
-#define DNS_TC (1<<9)         /**< truncation  */
-#define DNS_AA (1<<10)         /**< authoritative answer  */
-#define DNS_OPCODE_MASK (0xf<<11) /**< opcode mask */
-#define DNS_OPCODE_QUERY (0<<11)  /**< standard query */
-#define DNS_OPCODE_IQUERY (1<<11) /**< inverse query (deprecated) */
-#define DNS_OPCODE_STATUS (2<<11) /**< server status  */
-#define DNS_QR (1<<15)         /**< query=0, response=1  */
-
-
-/*
- * Note: in DNS-land, www.foobar.com is encoded as three "labels,"
- * each of which amount to a 1 octet length followed by up to 63
- * octets of name. Don't forget to add a "null root label" after the last
- * real one, or the poor slob trying to parse the name will have
- * no chance whatsoever.
- *
- * All RRs have the same top level format shown below:
- *
- *                                    1  1  1  1  1  1
- *      0  1  2  3  4  5  6  7  8  9  0  1  2  3  4  5
- *    +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
- *    |                                               |
- *    /                                               /
- *    /                      NAME                     /
- *    |                                               |
- *    +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
- *    |                      TYPE                     |
- *    +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
- *    |                     CLASS                     |
- *    +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
- *    |                      TTL                      |
- *    |                                               |
- *    +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
- *    |                   RDLENGTH                    |
- *    +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--|
- *    /                     RDATA                     /
- *    /                                               /
- *    +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
- *
- *
- *  DNS "questions" have the following format:
- *
- *                                     1  1  1  1  1  1
- *       0  1  2  3  4  5  6  7  8  9  0  1  2  3  4  5
- *     +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
- *     |                                               |
- *     /                     QNAME                     /
- *     /                                               /
- *     +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
- *     |                     QTYPE                     |
- *     +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
- *     |                     QCLASS                    |
- *     +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
- */
-
-/**
- * DNS "question" fixed header.
- */
-/* *INDENT-OFF* */
-typedef CLIB_PACKED (struct {
-  u16 type;    /**< record type requested */
-  u16 class;   /**< class, 1 = internet */
-}) dns_query_t;
-/* *INDENT-ON* */
-
-/**
- * DNS RR fixed header.
- */
-/* *INDENT-OFF* */
-typedef CLIB_PACKED (struct {
-  u16 type;    /**< record type */
-  u16 class;   /**< class, 1 = internet */
-  u32 ttl;     /**< time to live, in seconds */
-  u16 rdlength;
-  /**< length of r */
-  u8 rdata[0];
-}) dns_rr_t;
-/* *INDENT-ON* */
-
-/*
- * There are quite a number of DNS record types
- * Feel free to add as needed
- */
-#define foreach_dns_type                        \
-_(A, 1)        /**< ip4 host address */        \
-_(AAAA, 28)     /**< ip6 host address */        \
-_(ALL, 255)     /**< all available data */      \
-_(TEXT, 16)     /**< a text string */           \
-_(NAMESERVER, 2) /**< a nameserver */           \
-_(CNAME, 5)      /**< a CNAME (alias) */       \
-_(MAIL_EXCHANGE, 15) /**< a mail exchange  */  \
-_(PTR, 12)      /**< a PTR (pointer) record */ \
-_(HINFO, 13)   /**< Host info */
-
-typedef enum
-{
-#define _(name,value) DNS_TYPE_##name = value,
-  foreach_dns_type
-#undef _
-} dns_type_t;
-
-#define DNS_CLASS_IN   1       /**< The Internet */
-
-
-#endif /* included_dns_packet_h */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */