1 files changed, 288 insertions, 0 deletions

diff --git a/source4/auth/auth_sam_reply.c b/source4/auth/auth_sam_reply.c
new file mode 100644
index 0000000000..dfa76234b4
--- /dev/null
+++ b/source4/auth/auth_sam_reply.c
@@ -0,0 +1,288 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   Convert a server info struct into the form for PAC and NETLOGON replies
+
+   Copyright (C) Andrew Bartlett <abartlet@samba.org> 2004
+   Copyright (C) Stefan Metzmacher <metze@samba.org>  2005
+   
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "auth/auth.h"
+#include "libcli/security/security.h"
+#include "librpc/gen_ndr/ndr_netlogon.h"
+#include "auth/auth_sam_reply.h"
+
+NTSTATUS auth_convert_server_info_sambaseinfo(TALLOC_CTX *mem_ctx, 
+					      struct auth_serversupplied_info *server_info, 
+					      struct netr_SamBaseInfo **_sam)
+{
+	struct netr_SamBaseInfo *sam = talloc_zero(mem_ctx, struct netr_SamBaseInfo);
+	NT_STATUS_HAVE_NO_MEMORY(sam);
+
+	sam->domain_sid = dom_sid_dup(mem_ctx, server_info->account_sid);
+	NT_STATUS_HAVE_NO_MEMORY(sam->domain_sid);
+	sam->domain_sid->num_auths--;
+
+	sam->last_logon = server_info->last_logon;
+	sam->last_logoff = server_info->last_logoff;
+	sam->acct_expiry = server_info->acct_expiry;
+	sam->last_password_change = server_info->last_password_change;
+	sam->allow_password_change = server_info->allow_password_change;
+	sam->force_password_change = server_info->force_password_change;
+
+	sam->account_name.string = server_info->account_name;
+	sam->full_name.string = server_info->full_name;
+	sam->logon_script.string = server_info->logon_script;
+	sam->profile_path.string = server_info->profile_path;
+	sam->home_directory.string = server_info->home_directory;
+	sam->home_drive.string = server_info->home_drive;
+
+	sam->logon_count = server_info->logon_count;
+	sam->bad_password_count = sam->bad_password_count;
+	sam->rid = server_info->account_sid->sub_auths[server_info->account_sid->num_auths-1];
+	sam->primary_gid = server_info->primary_group_sid->sub_auths[server_info->primary_group_sid->num_auths-1];
+
+	sam->groups.count = 0;
+	sam->groups.rids = NULL;
+
+	if (server_info->n_domain_groups > 0) {
+		int i;
+		sam->groups.rids = talloc_array(sam, struct samr_RidWithAttribute,
+						server_info->n_domain_groups);
+
+		if (sam->groups.rids == NULL)
+			return NT_STATUS_NO_MEMORY;
+
+		for (i=0; i<server_info->n_domain_groups; i++) {
+			struct dom_sid *group_sid = server_info->domain_groups[i];
+			if (!dom_sid_in_domain(sam->domain_sid, group_sid)) {
+				/* We handle this elsewhere */
+				continue;
+			}
+			sam->groups.rids[sam->groups.count].rid =
+				group_sid->sub_auths[group_sid->num_auths-1];
+			
+			sam->groups.rids[sam->groups.count].attributes = 
+				SE_GROUP_MANDATORY | SE_GROUP_ENABLED_BY_DEFAULT | SE_GROUP_ENABLED;
+			sam->groups.count += 1;
+		}
+	}
+
+	sam->user_flags = 0; /* w2k3 uses NETLOGON_EXTRA_SIDS | NETLOGON_NTLMV2_ENABLED */
+	sam->acct_flags = server_info->acct_flags;
+	sam->logon_server.string = server_info->logon_server;
+	sam->domain.string = server_info->domain_name;
+
+	ZERO_STRUCT(sam->unknown);
+
+	ZERO_STRUCT(sam->key);
+	if (server_info->user_session_key.length == sizeof(sam->key.key)) {
+		memcpy(sam->key.key, server_info->user_session_key.data, sizeof(sam->key.key));
+	}
+
+	ZERO_STRUCT(sam->LMSessKey);
+	if (server_info->lm_session_key.length == sizeof(sam->LMSessKey.key)) {
+		memcpy(sam->LMSessKey.key, server_info->lm_session_key.data, 
+		       sizeof(sam->LMSessKey.key));
+	}
+	
+	*_sam = sam;
+
+	return NT_STATUS_OK;
+}	
+
+NTSTATUS auth_convert_server_info_saminfo3(TALLOC_CTX *mem_ctx, 
+					   struct auth_serversupplied_info *server_info, 
+					   struct netr_SamInfo3 **_sam3)
+{
+	struct netr_SamBaseInfo *sam;
+	struct netr_SamInfo3 *sam3 = talloc_zero(mem_ctx, struct netr_SamInfo3);
+	NTSTATUS status;
+	int i;
+	NT_STATUS_HAVE_NO_MEMORY(sam3);
+
+	status = auth_convert_server_info_sambaseinfo(mem_ctx, server_info, &sam);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+	sam3->base = *sam;
+	sam3->sidcount	= 0;
+	sam3->sids	= NULL;
+
+	
+	sam3->sids = talloc_array(sam, struct netr_SidAttr,
+				  server_info->n_domain_groups);
+	NT_STATUS_HAVE_NO_MEMORY(sam3->sids);
+	
+	for (i=0; i<server_info->n_domain_groups; i++) {
+		if (dom_sid_in_domain(sam->domain_sid, server_info->domain_groups[i])) {
+			continue;
+		}
+		sam3->sids[sam3->sidcount].sid = talloc_reference(sam3->sids,server_info->domain_groups[i]);
+		sam3->sids[sam3->sidcount].attributes =
+			SE_GROUP_MANDATORY | SE_GROUP_ENABLED_BY_DEFAULT | SE_GROUP_ENABLED;
+		sam3->sidcount += 1;
+	}
+	if (sam3->sidcount) {
+		sam3->base.user_flags |= NETLOGON_EXTRA_SIDS;
+	} else {
+		sam3->sids = NULL;
+	}
+	*_sam3 = sam3;
+
+	return NT_STATUS_OK;
+}	
+
+/**
+ * Make a server_info struct from the info3 returned by a domain logon 
+ */
+NTSTATUS make_server_info_netlogon_validation(TALLOC_CTX *mem_ctx,
+					      const char *account_name,
+					      uint16_t validation_level,
+					      union netr_Validation *validation,
+					      struct auth_serversupplied_info **_server_info)
+{
+	struct auth_serversupplied_info *server_info;
+	struct netr_SamBaseInfo *base = NULL;
+	int i;
+
+	switch (validation_level) {
+	case 2:
+		if (!validation || !validation->sam2) {
+			return NT_STATUS_INVALID_PARAMETER;
+		}
+		base = &validation->sam2->base;
+		break;
+	case 3:
+		if (!validation || !validation->sam3) {
+			return NT_STATUS_INVALID_PARAMETER;
+		}
+		base = &validation->sam3->base;
+		break;
+	case 6:
+		if (!validation || !validation->sam6) {
+			return NT_STATUS_INVALID_PARAMETER;
+		}
+		base = &validation->sam6->base;
+		break;
+	default:
+		return NT_STATUS_INVALID_LEVEL;
+	}
+
+	server_info = talloc(mem_ctx, struct auth_serversupplied_info);
+	NT_STATUS_HAVE_NO_MEMORY(server_info);
+
+	/*
+	   Here is where we should check the list of
+	   trusted domains, and verify that the SID 
+	   matches.
+	*/
+	server_info->account_sid = dom_sid_add_rid(server_info, base->domain_sid, base->rid);
+	NT_STATUS_HAVE_NO_MEMORY(server_info->account_sid);
+
+
+	server_info->primary_group_sid = dom_sid_add_rid(server_info, base->domain_sid, base->primary_gid);
+	NT_STATUS_HAVE_NO_MEMORY(server_info->primary_group_sid);
+
+	server_info->n_domain_groups = base->groups.count;
+	if (base->groups.count) {
+		server_info->domain_groups = talloc_array(server_info, struct dom_sid*, base->groups.count);
+		NT_STATUS_HAVE_NO_MEMORY(server_info->domain_groups);
+	} else {
+		server_info->domain_groups = NULL;
+	}
+
+	for (i = 0; i < base->groups.count; i++) {
+		server_info->domain_groups[i] = dom_sid_add_rid(server_info, base->domain_sid, base->groups.rids[i].rid);
+		NT_STATUS_HAVE_NO_MEMORY(server_info->domain_groups[i]);
+	}
+
+	/* Copy 'other' sids.  We need to do sid filtering here to
+ 	   prevent possible elevation of privileges.  See:
+
+           http://www.microsoft.com/windows2000/techinfo/administration/security/sidfilter.asp
+         */
+
+	if (validation_level == 3) {
+		struct dom_sid **dgrps = server_info->domain_groups;
+		size_t sidcount = server_info->n_domain_groups + validation->sam3->sidcount;
+		size_t n_dgrps = server_info->n_domain_groups;
+
+		if (validation->sam3->sidcount > 0) {
+			dgrps = talloc_realloc(server_info, dgrps, struct dom_sid*, sidcount);
+			NT_STATUS_HAVE_NO_MEMORY(dgrps);
+
+			for (i = 0; i < validation->sam3->sidcount; i++) {
+				dgrps[n_dgrps + i] = talloc_reference(dgrps, validation->sam3->sids[i].sid);
+			}
+		}
+
+		server_info->n_domain_groups = sidcount;
+		server_info->domain_groups = dgrps;
+
+		/* Where are the 'global' sids?... */
+	}
+
+	if (base->account_name.string) {
+		server_info->account_name = talloc_reference(server_info, base->account_name.string);
+	} else {
+		server_info->account_name = talloc_strdup(server_info, account_name);
+		NT_STATUS_HAVE_NO_MEMORY(server_info->account_name);
+	}
+
+	server_info->domain_name = talloc_reference(server_info, base->domain.string);
+	server_info->full_name = talloc_reference(server_info, base->full_name.string);
+	server_info->logon_script = talloc_reference(server_info, base->logon_script.string);
+	server_info->profile_path = talloc_reference(server_info, base->profile_path.string);
+	server_info->home_directory = talloc_reference(server_info, base->home_directory.string);
+	server_info->home_drive = talloc_reference(server_info, base->home_drive.string);
+	server_info->logon_server = talloc_reference(server_info, base->logon_server.string);
+	server_info->last_logon = base->last_logon;
+	server_info->last_logoff = base->last_logoff;
+	server_info->acct_expiry = base->acct_expiry;
+	server_info->last_password_change = base->last_password_change;
+	server_info->allow_password_change = base->allow_password_change;
+	server_info->force_password_change = base->force_password_change;
+	server_info->logon_count = base->logon_count;
+	server_info->bad_password_count = base->bad_password_count;
+	server_info->acct_flags = base->acct_flags;
+
+	server_info->authenticated = true;
+
+	/* ensure we are never given NULL session keys */
+
+	if (all_zero(base->key.key, sizeof(base->key.key))) {
+		server_info->user_session_key = data_blob(NULL, 0);
+	} else {
+		server_info->user_session_key = data_blob_talloc(server_info, base->key.key, sizeof(base->key.key));
+		NT_STATUS_HAVE_NO_MEMORY(server_info->user_session_key.data);
+	}
+
+	if (all_zero(base->LMSessKey.key, sizeof(base->LMSessKey.key))) {
+		server_info->lm_session_key = data_blob(NULL, 0);
+	} else {
+		server_info->lm_session_key = data_blob_talloc(server_info, base->LMSessKey.key, sizeof(base->LMSessKey.key));
+		NT_STATUS_HAVE_NO_MEMORY(server_info->lm_session_key.data);
+	}
+
+	ZERO_STRUCT(server_info->pac_srv_sig);
+	ZERO_STRUCT(server_info->pac_kdc_sig);
+
+	*_server_info = server_info;
+	return NT_STATUS_OK;
+}
+