r19604: This is a massive commit, and I appologise in advance for it's size.

This merges Samba4 with lorikeet-heimdal, which itself has been
tracking Heimdal CVS for the past couple of weeks.

This is such a big change because Heimdal reorganised it's internal
structures, with the mechglue merge, and because many of our 'wishes' have been granted:  we now have DCE_STYLE GSSAPI, send_to_kdc hooks and many other features merged into the mainline code.  We have adapted to upstream's choice of API in these cases.

In gensec_gssapi and gensec_krb5, we either expect a valid PAC, or NO
PAC.  This matches windows behavour.  We also have an option to
require the PAC to be present (which allows us to automate the testing
of this code).

This also includes a restructure of how the kerberos dependencies are
handled, due to the fallout of the merge.

Andrew Bartlett
(This used to be commit 4826f1735197c2a471d771495e6d4c1051b4c471)

1 files changed, 115 insertions, 0 deletions

diff --git a/source4/heimdal/lib/asn1/digest.asn1 b/source4/heimdal/lib/asn1/digest.asn1
new file mode 100644
index 0000000000..1f8f18b5cd
--- /dev/null
+++ b/source4/heimdal/lib/asn1/digest.asn1
@@ -0,0 +1,115 @@
+-- $Id: digest.asn1,v 1.9 2006/08/25 11:57:54 lha Exp $
+
+DIGEST DEFINITIONS ::=
+BEGIN
+
+IMPORTS EncryptedData, Principal FROM krb5;
+
+DigestInit ::= SEQUENCE {
+    type		UTF8String, -- http, sasl, chap, cram-md5 --
+    channel		[0] SEQUENCE {
+    	cb-type		UTF8String,
+    	cb-binding	UTF8String
+    } OPTIONAL,
+    hostname		[1] UTF8String OPTIONAL -- for chap/cram-md5
+}
+
+DigestInitReply ::= SEQUENCE {
+    nonce		UTF8String,	-- service nonce/challange
+    opaque		UTF8String,	-- server state
+    identifier		[0] UTF8String OPTIONAL
+}
+
+
+DigestRequest ::= SEQUENCE  {
+    type		UTF8String, -- http, sasl-md5, chap, cram-md5 --
+    digest		UTF8String, -- http:md5/md5-sess sasl:clear/int/conf --
+    username		UTF8String, -- username user used
+    authid		[0] UTF8String OPTIONAL,
+    authentication-user	[1] Principal OPTIONAL, -- principal to get key from
+    realm		[2] UTF8String OPTIONAL,
+    method		[3] UTF8String OPTIONAL,
+    uri			[4] UTF8String OPTIONAL,
+    serverNonce		UTF8String, -- same as "DigestInitReply.nonce"
+    clientNonce		[5] UTF8String OPTIONAL,
+    nonceCount		[6] UTF8String OPTIONAL,
+    qop			[7] UTF8String OPTIONAL,
+    identifier		[8] UTF8String OPTIONAL,
+    hostname		[9] UTF8String OPTIONAL,
+    opaque		UTF8String -- same as "DigestInitReply.opaque"
+}
+-- opaque = hex(cksum(type|serverNonce|identifier|hostname,digest-key))
+-- serverNonce = hex(time[4bytes]random[12bytes])(-cbType:cbBinding)
+
+
+DigestError ::= SEQUENCE {
+    reason		UTF8String,
+    code		INTEGER (-2147483648..2147483647)
+}
+
+DigestResponse ::= SEQUENCE  {
+    responseData	UTF8String,
+    rsp			[0] UTF8String OPTIONAL,
+    tickets		[1] SEQUENCE OF OCTET STRING OPTIONAL,
+    channel		[2] SEQUENCE {
+    	cb-type		UTF8String,
+    	cb-binding	UTF8String
+    } OPTIONAL,
+    hash-a1		[3] OCTET STRING OPTIONAL
+}
+
+DigestReqInner ::= CHOICE {
+    init		[0] DigestInit,
+    digestRequest	[1] DigestRequest
+}
+
+DigestREQ ::= [APPLICATION 128] SEQUENCE {
+    apReq		[0] OCTET STRING,
+    innerReq		[1] EncryptedData
+}
+
+DigestRepInner ::= CHOICE {
+    error		[0] DigestError,
+    initReply		[1] DigestInitReply,
+    response		[2] DigestResponse
+}
+
+DigestREP ::= [APPLICATION 129] SEQUENCE {
+    apRep		[0] OCTET STRING,
+    innerRep		[1] EncryptedData
+}
+
+
+-- HTTP
+
+-- md5
+-- A1 = unq(username-value) ":" unq(realm-value) ":" passwd
+-- md5-sess
+-- A1 = HEX(H(unq(username-value) ":" unq(realm-value) ":" passwd ) ":" unq(nonce-value) ":" unq(cnonce-value))
+
+-- qop == auth
+-- A2 = Method ":" digest-uri-value
+-- qop == auth-int
+-- A2 = Method ":" digest-uri-value ":" H(entity-body) 
+
+-- request-digest  = HEX(KD(HEX(H(A1)),
+--    unq(nonce-value) ":" nc-value ":" unq(cnonce-value) ":" unq(qop-value) ":" HEX(H(A2))))
+-- no "qop"
+-- request-digest  = HEX(KD(HEX(H(A1)), unq(nonce-value) ":" HEX(H(A2))))
+
+
+-- SASL:
+-- SS = H( { unq(username-value), ":", unq(realm-value), ":", password } )
+-- A1 = { SS, ":", unq(nonce-value), ":", unq(cnonce-value) }
+-- A1 = { SS, ":", unq(nonce-value), ":", unq(cnonce-value), ":", unq(authzid-value) }
+
+-- A2 = "AUTHENTICATE:", ":", digest-uri-value
+-- qop == auth-int,auth-conf
+-- A2 = "AUTHENTICATE:", ":", digest-uri-value, ":00000000000000000000000000000000"
+
+-- response-value = HEX( KD ( HEX(H(A1)),
+--                 { unq(nonce-value), ":" nc-value, ":",
+--                   unq(cnonce-value), ":", qop-value, ":",
+--                   HEX(H(A2)) }))
+
+END