idl: Add idl describing DNS structures

3 files changed, 161 insertions, 1 deletions

diff --git a/librpc/idl/dns.idl b/librpc/idl/dns.idl
new file mode 100644
index 00000000000..faa623be5d9
--- /dev/null
+++ b/librpc/idl/dns.idl
@@ -0,0 +1,155 @@
+#include "idl_types.h"
+
+/*
+   IDL structures for DNS operations
+
+   DNS is not traditionally encoded using IDL/NDR. This is a bit of an
+   experiment, and I may well switch us back to a more traditional
+   encoding if it doesn't work out
+*/
+
+import "misc.idl";
+[
+	helper("librpc/ndr/ndr_dnsp.h"),
+	helpstring("DNS records"),
+	version(0.0),
+	uuid("a047c001-5f22-40b0-9d52-7042c43f711a")
+]
+interface dns
+{
+	const int DNS_SERVICE_PORT       = 53;
+
+	typedef [public,bitmap16bit] bitmap {
+		DNS_RCODE                   = 0x000F,
+		DNS_FLAG_BROADCAST          = 0x0010,
+		DNS_FLAG_RECURSION_AVAIL    = 0x0080,
+		DNS_FLAG_RECURSION_DESIRED  = 0x0100,
+		DNS_FLAG_TRUNCATION         = 0x0200,
+		DNS_FLAG_AUTHORITIVE        = 0x0400,
+		DNS_OPCODE                  = 0x7800,
+		DNS_FLAG_REPLY              = 0x8000
+	} dns_operation;
+
+	/* the opcodes are in the operation field, masked with
+	   DNS_OPCODE */
+	typedef [public] enum {
+		DNS_OPCODE_QUERY          =  (0x0<<11),
+		DNS_OPCODE_IQUERY         =  (0x1<<11),
+		DNS_OPCODE_STATUS         =  (0x2<<11),
+		DNS_OPCODE_REGISTER       =  (0x5<<11),
+		DNS_OPCODE_RELEASE        =  (0x6<<11),
+		DNS_OPCODE_WACK           =  (0x7<<11),
+		DNS_OPCODE_REFRESH        =  (0x8<<11),
+		DNS_OPCODE_REFRESH2       =  (0x9<<11),
+		DNS_OPCODE_MULTI_HOME_REG =  (0xf<<11)
+	} dns_opcode;
+
+	/* rcode values */
+	typedef [public] enum {
+		DNS_RCODE_OK       = 0x0,
+		DNS_RCODE_FORMERR  = 0x1,
+		DNS_RCODE_SERVFAIL = 0x2,
+		DNS_RCODE_NXDOMAIN = 0x3,
+		DNS_RCODE_NOTIMP   = 0x4,
+		DNS_RCODE_REFUSED  = 0x5,
+		DNS_RCODE_YXDOMAIN = 0x6,
+		DNS_RCODE_YXRRSET  = 0x7,
+		DNS_RCODE_NXRRSET  = 0x8,
+		DNS_RCODE_NOTAUTH  = 0x9,
+		DNS_RCODE_NOTZONE  = 0xA
+	} dns_rcode;
+
+	typedef [public,enum16bit] enum {
+		DNS_QCLASS_IP = 0x01
+	} dns_qclass;
+
+	/* These vese values could have been merged with NBT_QTYPE values, but
+	   DNS_QTYPE_SRV and NBT_QTYPE_STATUS have the same numeric value. */
+	typedef [public,enum16bit] enum {
+		DNS_QTYPE_ZERO   = 0x0000,
+		DNS_QTYPE_A      = 0x0001,
+		DNS_QTYPE_NS     = 0x0002,
+		DNS_QTYPE_MD     = 0x0003,
+		DNS_QTYPE_MF     = 0x0004,
+		DNS_QTYPE_CNAME  = 0x0005,
+		DNS_QTYPE_SOA    = 0x0006,
+		DNS_QTYPE_MB     = 0x0007,
+		DNS_QTYPE_MG     = 0x0008,
+		DNS_QTYPE_MR     = 0x0009,
+		DNS_QTYPE_NULL   = 0x000A,
+		DNS_QTYPE_WKS    = 0x000B,
+		DNS_QTYPE_PTR    = 0x000C,
+		DNS_QTYPE_HINFO  = 0x000D,
+		DNS_QTYPE_MINFO  = 0x000E,
+		DNS_QTYPE_MX     = 0x000F,
+		DNS_QTYPE_TXT    = 0x0010,
+		DNS_QTYPE_RP     = 0x0011,
+		DNS_QTYPE_AFSDB  = 0x0012,
+		DNS_QTYPE_X25    = 0x0013,
+		DNS_QTYPE_ISDN   = 0x0014,
+		DNS_QTYPE_RT     = 0x0015,
+		DNS_QTYPE_SIG    = 0x0018,
+		DNS_QTYPE_KEY    = 0x0019,
+		DNS_QTYPE_AAAA   = 0x001C,
+		DNS_QTYPE_LOC    = 0x001D,
+		DNS_QTYPE_NXT    = 0x001E,
+		DNS_QTYPE_NETBIOS= 0x0020,
+		DNS_QTYPE_SRV    = 0x0021,
+		DNS_QTYPE_ATMA   = 0x0022,
+		DNS_QTYPE_NAPTR  = 0x0023,
+		DNS_QTYPE_DNAME  = 0x0027,
+		DNS_QTYPE_DS     = 0x002B,
+		DNS_QTYPE_RRSIG  = 0x002E,
+		DNS_QTYPE_NSEC   = 0x002F,
+		DNS_QTYPE_DNSKEY = 0x0030,
+		DNS_QTYPE_DHCID  = 0x0031,
+		DNS_QTYPE_ALL    = 0x00FF,
+		DNS_QTYPE_WINS   = 0xFF01,
+		DNS_QTYPE_WINSR  = 0xFF02
+	} dns_qtype;
+
+	typedef [public] struct {
+		dnsp_name  name;
+		dns_qtype  question_type;
+		dns_qclass question_class;
+	} dns_name_question;
+
+	typedef [public] struct {
+		uint16 length;
+		uint8  data[length];
+	} dns_rdata_data;
+
+	typedef [nodiscriminant,public] union {
+		[case(DNS_QTYPE_A)]       ipv4address      ipv4_address;
+		[default]                 dns_rdata_data   data;
+	} dns_rdata;
+
+	typedef [flag(LIBNDR_PRINT_ARRAY_HEX),public] struct {
+		dnsp_name  name;
+		dns_qtype  rr_type;
+		dns_qclass rr_class;
+		uint32     ttl;
+		[switch_is(rr_type)] dns_rdata rdata;
+	} dns_res_rec;
+
+	typedef [flag(NDR_NOALIGN|NDR_BIG_ENDIAN|NDR_PAHEX),public] struct {
+		uint16            id;
+		dns_operation     operation;
+		uint16            qdcount;
+		uint16            ancount;
+		uint16            nscount;
+		uint16            arcount;
+		dns_name_question questions[qdcount];
+		dns_res_rec       answers[ancount];
+		dns_res_rec       nsrecs[nscount];
+		dns_res_rec       additional[arcount];
+		[flag(NDR_REMAINING)] DATA_BLOB padding;
+	} dns_name_packet;
+
+        /*
+	   this is a convenience hook for ndrdump
+	*/
+	void decode_dns_name_packet(
+				    [in] dns_name_packet packet
+				   );
+}
diff --git a/librpc/idl/wscript_build b/librpc/idl/wscript_build
index 4dc1199092b..eed608075ec 100644
--- a/librpc/idl/wscript_build
+++ b/librpc/idl/wscript_build
@@ -7,7 +7,7 @@ bld.SAMBA_PIDL_LIST('PIDL',
                        msgsvc.idl ntsvcs.idl remact.idl security.idl unixinfo.idl wzcsvc.idl
                        browser.idl dfs.idl dssetup.idl frsapi.idl krb5pac.idl
                        named_pipe_auth.idl orpc.idl rot.idl spoolss.idl w32time.idl xattr.idl
-                       dbgidl.idl dnsserver.idl echo.idl frsrpc.idl lsa.idl nbt.idl
+                       dbgidl.idl dnsserver.idl echo.idl frsrpc.idl lsa.idl nbt.idl dns.idl
                        oxidresolver.idl samr.idl srvsvc.idl winreg.idl dcerpc.idl
                        drsblobs.idl efs.idl frstrans.idl mgmt.idl netlogon.idl
                        policyagent.idl scerpc.idl svcctl.idl wkssvc.idl eventlog6.idl''',
diff --git a/librpc/wscript_build b/librpc/wscript_build
index 4a45095eec6..2d053e49a52 100644
--- a/librpc/wscript_build
+++ b/librpc/wscript_build
@@ -17,6 +17,11 @@ bld.SAMBA_SUBSYSTEM('NDR_DNSSERVER',
 	public_deps='LIBNDR'
 	)
 
+bld.SAMBA_SUBSYSTEM('NDR_DNS',
+	source='../librpc/gen_ndr/ndr_dns.c',
+	public_deps='LIBNDR NDR_DNSP'
+	)
+
 bld.SAMBA_SUBSYSTEM('NDR_DSBACKUP',
 	source='../librpc/gen_ndr/ndr_dsbackup.c',
 	public_deps='LIBNDR'