s3-winbindd: let winbind try to use samlogon validation level 6. (bug #7945)

The benefit of this that it makes us more robust to secure channel resets
triggered from tools outside the winbind process. Long term we need to have a
shared tdb secure channel store though as well.

Guenther

Signed-off-by: Stefan Metzmacher <metze@samba.org>

Autobuild-User: Stefan Metzmacher <metze@samba.org>
Autobuild-Date: Fri Feb  4 18:11:04 CET 2011 on sn-devel-104

2 files changed, 60 insertions, 4 deletions

diff --git a/source3/rpc_client/cli_netlogon.c b/source3/rpc_client/cli_netlogon.c
index 914bfd3df6..f34d794ea4 100644
--- a/source3/rpc_client/cli_netlogon.c
+++ b/source3/rpc_client/cli_netlogon.c
@@ -25,6 +25,8 @@
 #include "../librpc/gen_ndr/ndr_netlogon_c.h"
 #include "rpc_client/cli_netlogon.h"
 #include "rpc_client/init_netlogon.h"
+#include "rpc_client/util_netlogon.h"
+#include "../libcli/security/security.h"
 
 /****************************************************************************
  Wrapper function that uses the auth and auth2 calls to set up a NETLOGON
@@ -298,6 +300,52 @@ NTSTATUS rpccli_netlogon_sam_logon(struct rpc_pipe_client *cli,
 	return result;
 }
 
+static NTSTATUS map_validation_to_info3(TALLOC_CTX *mem_ctx,
+					uint16_t validation_level,
+					union netr_Validation *validation,
+					struct netr_SamInfo3 **info3_p)
+{
+	struct netr_SamInfo3 *info3;
+	NTSTATUS status;
+
+	if (validation == NULL) {
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+
+	switch (validation_level) {
+	case 3:
+		if (validation->sam3 == NULL) {
+			return NT_STATUS_INVALID_PARAMETER;
+		}
+
+		info3 = talloc_move(mem_ctx, &validation->sam3);
+		break;
+	case 6:
+		if (validation->sam6 == NULL) {
+			return NT_STATUS_INVALID_PARAMETER;
+		}
+
+		info3 = talloc_zero(mem_ctx, struct netr_SamInfo3);
+		if (info3 == NULL) {
+			return NT_STATUS_NO_MEMORY;
+		}
+		status = copy_netr_SamBaseInfo(info3, &validation->sam6->base, &info3->base);
+		if (!NT_STATUS_IS_OK(status)) {
+			TALLOC_FREE(info3);
+			return status;
+		}
+
+		info3->sidcount = validation->sam6->sidcount;
+		info3->sids = talloc_move(info3, &validation->sam6->sids);
+		break;
+	default:
+		return NT_STATUS_BAD_VALIDATION_CLASS;
+	}
+
+	*info3_p = info3;
+
+	return NT_STATUS_OK;
+}
 
 /**
  * Logon domain user with an 'network' SAM logon
@@ -313,13 +361,13 @@ NTSTATUS rpccli_netlogon_sam_network_logon(struct rpc_pipe_client *cli,
 					   const char *domain,
 					   const char *workstation,
 					   const uint8 chal[8],
+					   uint16_t validation_level,
 					   DATA_BLOB lm_response,
 					   DATA_BLOB nt_response,
 					   struct netr_SamInfo3 **info3)
 {
 	NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
 	NTSTATUS status;
-	int validation_level = 3;
 	const char *workstation_name_slash;
 	const char *server_name_slash;
 	struct netr_Authenticator clnt_creds;
@@ -417,7 +465,10 @@ NTSTATUS rpccli_netlogon_sam_network_logon(struct rpc_pipe_client *cli,
 
 	netlogon_creds_decrypt_samlogon(cli->dc, validation_level, &validation);
 
-	*info3 = validation.sam3;
+	result = map_validation_to_info3(mem_ctx, validation_level, &validation, info3);
+	if (!NT_STATUS_IS_OK(result)) {
+		return result;
+	}
 
 	return result;
 }
@@ -430,13 +481,13 @@ NTSTATUS rpccli_netlogon_sam_network_logon_ex(struct rpc_pipe_client *cli,
 					      const char *domain,
 					      const char *workstation,
 					      const uint8 chal[8],
+					      uint16_t validation_level,
 					      DATA_BLOB lm_response,
 					      DATA_BLOB nt_response,
 					      struct netr_SamInfo3 **info3)
 {
 	NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
 	NTSTATUS status;
-	int validation_level = 3;
 	const char *workstation_name_slash;
 	const char *server_name_slash;
 	union netr_LogonLevel *logon = NULL;
@@ -522,7 +573,10 @@ NTSTATUS rpccli_netlogon_sam_network_logon_ex(struct rpc_pipe_client *cli,
 
 	netlogon_creds_decrypt_samlogon(cli->dc, validation_level, &validation);
 
-	*info3 = validation.sam3;
+	result = map_validation_to_info3(mem_ctx, validation_level, &validation, info3);
+	if (!NT_STATUS_IS_OK(result)) {
+		return result;
+	}
 
 	return result;
 }
diff --git a/source3/rpc_client/cli_netlogon.h b/source3/rpc_client/cli_netlogon.h
index bb38b75b95..808a4283ce 100644
--- a/source3/rpc_client/cli_netlogon.h
+++ b/source3/rpc_client/cli_netlogon.h
@@ -25,6 +25,7 @@ NTSTATUS rpccli_netlogon_sam_network_logon(struct rpc_pipe_client *cli,
 					   const char *domain,
 					   const char *workstation,
 					   const uint8 chal[8],
+					   uint16_t validation_level,
 					   DATA_BLOB lm_response,
 					   DATA_BLOB nt_response,
 					   struct netr_SamInfo3 **info3);
@@ -36,6 +37,7 @@ NTSTATUS rpccli_netlogon_sam_network_logon_ex(struct rpc_pipe_client *cli,
 					      const char *domain,
 					      const char *workstation,
 					      const uint8 chal[8],
+					      uint16_t validation_level,
 					      DATA_BLOB lm_response,
 					      DATA_BLOB nt_response,
 					      struct netr_SamInfo3 **info3);