[SCM] Samba Shared Repository - branch master updated

Simo Sorce idra at samba.org
Wed Jan 27 12:03:43 MST 2010


The branch, master has been updated
       via  b63b9bc... s4:windc move windc plugin in its own file
       via  1f2e9e9... s4:PAC make common functions public
       via  82a80b7... s4:PAC Streamline pac-glue step 2
       via  85e3561... s4:PAC Streamline pac-glue
      from  6bade10... s3: get pthread detection also on HP-UX right

http://gitweb.samba.org/?p=samba.git;a=shortlog;h=master


- Log -----------------------------------------------------------------
commit b63b9bcd42e864d4b7024944c9d0b467487348f0
Author: Simo Sorce <idra at samba.org>
Date:   Tue Jan 26 11:56:16 2010 -0500

    s4:windc move windc plugin in its own file
    
    Keep all heimdal related plugin code within wdc-samba4.c
    Leave only interfaces common to multiple plugins in pac-glue.c

commit 1f2e9e90bdbd609dc6316c6dd71faa25a0138915
Author: Simo Sorce <idra at samba.org>
Date:   Tue Jan 26 11:43:54 2010 -0500

    s4:PAC make common functions public

commit 82a80b7f71d549e93995603a20ba119003c923fa
Author: Simo Sorce <idra at samba.org>
Date:   Tue Jan 26 11:09:32 2010 -0500

    s4:PAC Streamline pac-glue step 2
    
    Split functions so that no assumption is made about which plugin
    is using them

commit 85e3561dc9883aa957de85ad2ff82e0cc13c81b4
Author: Simo Sorce <idra at samba.org>
Date:   Tue Jan 26 11:06:00 2010 -0500

    s4:PAC Streamline pac-glue
    
    First step, preparing to share the code between multiple plugins.

-----------------------------------------------------------------------

Summary of changes:
 source4/kdc/config.mk    |   18 +++-
 source4/kdc/kdc.c        |    1 +
 source4/kdc/kdc.h        |    2 -
 source4/kdc/pac-glue.c   |  274 ++++++++++++++--------------------------------
 source4/kdc/pac-glue.h   |   46 ++++++++
 source4/kdc/wdc-samba4.c |  212 +++++++++++++++++++++++++++++++++++
 6 files changed, 357 insertions(+), 196 deletions(-)
 create mode 100644 source4/kdc/pac-glue.h
 create mode 100644 source4/kdc/wdc-samba4.c


Changeset truncated at 500 lines:

diff --git a/source4/kdc/config.mk b/source4/kdc/config.mk
index 1659941..c3fc550 100644
--- a/source4/kdc/config.mk
+++ b/source4/kdc/config.mk
@@ -6,7 +6,7 @@
 INIT_FUNCTION = server_service_kdc_init
 SUBSYSTEM = service
 PRIVATE_DEPENDENCIES = \
-		HEIMDAL_KDC HDB_SAMBA4 PAC_GLUE LIBSAMBA-HOSTCONFIG \
+		HEIMDAL_KDC HDB_SAMBA4 WDC_SAMBA4 LIBSAMBA-HOSTCONFIG \
 		LIBTSOCKET LIBSAMBA_TSOCKET
 # End SUBSYSTEM KDC
 #######################
@@ -14,18 +14,30 @@ PRIVATE_DEPENDENCIES = \
 KDC_OBJ_FILES = $(addprefix $(kdcsrcdir)/, kdc.o kpasswdd.o)
 
 #######################
-# Start SUBSYSTEM KDC
+# Start SUBSYSTEM HDB
 [SUBSYSTEM::HDB_SAMBA4]
 CFLAGS = -Iheimdal/kdc -Iheimdal/lib/hdb
 PRIVATE_DEPENDENCIES = \
 		LIBLDB auth_sam auth_sam_reply CREDENTIALS \
 		HEIMDAL_HDB LIBSAMBA-HOSTCONFIG
-# End SUBSYSTEM KDC
+# End SUBSYSTEM HDB
 #######################
 
 HDB_SAMBA4_OBJ_FILES = $(addprefix $(kdcsrcdir)/, hdb-samba4.o)
 
 #######################
+# Start SUBSYSTEM WDC
+[SUBSYSTEM::WDC_SAMBA4]
+CFLAGS = -Iheimdal/kdc -Iheimdal/lib/hdb
+PRIVATE_DEPENDENCIES = \
+		LIBLDB auth_sam auth_sam_reply CREDENTIALS \
+		HEIMDAL_HDB PAC_GLUE LIBSAMBA-HOSTCONFIG
+# End SUBSYSTEM WDC
+#######################
+
+WDC_SAMBA4_OBJ_FILES = $(addprefix $(kdcsrcdir)/, wdc-samba4.o)
+
+#######################
 # Start SUBSYSTEM KDC
 [SUBSYSTEM::PAC_GLUE]
 CFLAGS = -Iheimdal/kdc -Iheimdal/lib/hdb
diff --git a/source4/kdc/kdc.c b/source4/kdc/kdc.c
index 026eaf4..86d0382 100644
--- a/source4/kdc/kdc.c
+++ b/source4/kdc/kdc.c
@@ -48,6 +48,7 @@
 TALLOC_CTX *hdb_samba4_mem_ctx;
 struct tevent_context *hdb_samba4_ev_ctx;
 struct loadparm_context *hdb_samba4_lp_ctx;
+extern struct krb5plugin_windc_ftable windc_plugin_table;
 
 typedef bool (*kdc_process_fn_t)(struct kdc_server *kdc,
 				 TALLOC_CTX *mem_ctx,
diff --git a/source4/kdc/kdc.h b/source4/kdc/kdc.h
index becef93..57f05e8 100644
--- a/source4/kdc/kdc.h
+++ b/source4/kdc/kdc.h
@@ -30,8 +30,6 @@
 struct kdc_server;
 struct tsocket_address;
 
-extern struct krb5plugin_windc_ftable windc_plugin_table;
-
 bool kpasswdd_process(struct kdc_server *kdc,
 		      TALLOC_CTX *mem_ctx,
 		      DATA_BLOB *input,
diff --git a/source4/kdc/pac-glue.c b/source4/kdc/pac-glue.c
index d921899..3c6b10e 100644
--- a/source4/kdc/pac-glue.c
+++ b/source4/kdc/pac-glue.c
@@ -4,6 +4,7 @@
    PAC Glue between Samba and the KDC
 
    Copyright (C) Andrew Bartlett <abartlet at samba.org> 2005-2009
+   Copyright (C) Simo Sorce <idra at samba.org> 2010
 
    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
@@ -31,59 +32,53 @@
 #include "kdc/kdc.h"
 #include "param/param.h"
 
-struct krb5_dh_moduli;
-struct _krb5_krb_auth_data;
-
-static krb5_error_code	samba_kdc_plugin_init(krb5_context context, void **ptr)
-{
-	*ptr = NULL;
-	return 0;
-}
-
-static void	samba_kdc_plugin_fini(void *ptr)
+NTSTATUS samba_get_logon_info_pac_blob(TALLOC_CTX *mem_ctx,
+				       struct smb_iconv_convenience *ic,
+				       struct auth_serversupplied_info *info,
+				       DATA_BLOB *pac_data)
 {
-	return;
-}
-
-static krb5_error_code make_pac(krb5_context context,
-				TALLOC_CTX *mem_ctx,
-				struct smb_iconv_convenience *iconv_convenience,
-				struct auth_serversupplied_info *server_info,
-				krb5_pac *pac)
-{
-	union PAC_INFO info;
 	struct netr_SamInfo3 *info3;
-	krb5_data pac_data;
-	NTSTATUS nt_status;
+	union PAC_INFO pac_info;
 	enum ndr_err_code ndr_err;
-	DATA_BLOB pac_out;
-	krb5_error_code ret;
+	NTSTATUS nt_status;
 
-	ZERO_STRUCT(info);
+	ZERO_STRUCT(pac_info);
 
-	nt_status = auth_convert_server_info_saminfo3(mem_ctx, server_info, &info3);
+	nt_status = auth_convert_server_info_saminfo3(mem_ctx, info, &info3);
 	if (!NT_STATUS_IS_OK(nt_status)) {
-		DEBUG(1, ("Getting Samba info failed: %s\n", nt_errstr(nt_status)));
-		return EINVAL;
+		DEBUG(1, ("Getting Samba info failed: %s\n",
+			  nt_errstr(nt_status)));
+		return nt_status;
 	}
 
-	info.logon_info.info = talloc_zero(mem_ctx, struct PAC_LOGON_INFO);
+	pac_info.logon_info.info = talloc_zero(mem_ctx, struct PAC_LOGON_INFO);
 	if (!mem_ctx) {
-		return ENOMEM;
+		return NT_STATUS_NO_MEMORY;
 	}
 
-	info.logon_info.info->info3 = *info3;
+	pac_info.logon_info.info->info3 = *info3;
 
-	ndr_err = ndr_push_union_blob(&pac_out, mem_ctx, iconv_convenience, &info,
+	ndr_err = ndr_push_union_blob(pac_data, mem_ctx, ic, &pac_info,
 				      PAC_TYPE_LOGON_INFO,
 				      (ndr_push_flags_fn_t)ndr_push_PAC_INFO);
 	if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 		nt_status = ndr_map_error2ntstatus(ndr_err);
-		DEBUG(1, ("PAC (presig) push failed: %s\n", nt_errstr(nt_status)));
-		return EINVAL;
+		DEBUG(1, ("PAC (presig) push failed: %s\n",
+			  nt_errstr(nt_status)));
+		return nt_status;
 	}
 
-	ret = krb5_data_copy(&pac_data, pac_out.data, pac_out.length);
+	return NT_STATUS_OK;
+}
+
+krb5_error_code samba_make_krb5_pac(krb5_context context,
+				    DATA_BLOB *pac_blob,
+				    krb5_pac *pac)
+{
+	krb5_data pac_data;
+	krb5_error_code ret;
+
+	ret = krb5_data_copy(&pac_data, pac_blob->data, pac_blob->length);
 	if (ret != 0) {
 		return ret;
 	}
@@ -103,28 +98,40 @@ static krb5_error_code make_pac(krb5_context context,
 	return ret;
 }
 
-/* Given the right private pointer from hdb_samba4, get a PAC from the attached ldb messages */
-static krb5_error_code samba_kdc_get_pac(void *priv,
-					 krb5_context context,
-					 struct hdb_entry_ex *client,
-					 krb5_pac *pac)
+bool samba_princ_needs_pac(struct hdb_entry_ex *princ)
 {
-	krb5_error_code ret;
-	NTSTATUS nt_status;
-	struct auth_serversupplied_info *server_info;
-	struct hdb_samba4_private *p = talloc_get_type(client->ctx, struct hdb_samba4_private);
-	TALLOC_CTX *mem_ctx = talloc_named(p, 0, "samba_get_pac context");
+
+	struct hdb_samba4_private *p = talloc_get_type(princ->ctx, struct hdb_samba4_private);
 	unsigned int userAccountControl;
 
-	if (!mem_ctx) {
-		return ENOMEM;
-	}
 
-	/* The user account may be set not to want the PAC */
+	/* The service account may be set not to want the PAC */
 	userAccountControl = ldb_msg_find_attr_as_uint(p->msg, "userAccountControl", 0);
 	if (userAccountControl & UF_NO_AUTH_DATA_REQUIRED) {
-		*pac = NULL;
-		return 0;
+		return false;
+	}
+
+	return true;
+}
+
+NTSTATUS samba_kdc_get_pac_blob(TALLOC_CTX *mem_ctx,
+				struct hdb_entry_ex *client,
+				DATA_BLOB **_pac_blob)
+{
+	struct hdb_samba4_private *p = talloc_get_type(client->ctx, struct hdb_samba4_private);
+	struct auth_serversupplied_info *server_info;
+	DATA_BLOB *pac_blob;
+	NTSTATUS nt_status;
+
+	/* The user account may be set not to want the PAC */
+	if ( ! samba_princ_needs_pac(client)) {
+		*_pac_blob = NULL;
+		return NT_STATUS_OK;
+	}
+
+	pac_blob = talloc_zero(mem_ctx, DATA_BLOB);
+	if (!pac_blob) {
+		return NT_STATUS_NO_MEMORY;
 	}
 
 	nt_status = authsam_make_server_info(mem_ctx, p->samdb,
@@ -138,63 +145,45 @@ static krb5_error_code samba_kdc_get_pac(void *priv,
 	if (!NT_STATUS_IS_OK(nt_status)) {
 		DEBUG(0, ("Getting user info for PAC failed: %s\n",
 			  nt_errstr(nt_status)));
-		return ENOMEM;
+		return nt_status;
 	}
 
-	ret = make_pac(context, mem_ctx, p->iconv_convenience, server_info, pac);
+	nt_status = samba_get_logon_info_pac_blob(mem_ctx,
+						  p->iconv_convenience,
+						  server_info, pac_blob);
+	if (!NT_STATUS_IS_OK(nt_status)) {
+		DEBUG(0, ("Building PAC failed: %s\n",
+			  nt_errstr(nt_status)));
+		return nt_status;
+	}
 
-	talloc_free(mem_ctx);
-	return ret;
+	*_pac_blob = pac_blob;
+	return NT_STATUS_OK;
 }
 
-/* Resign (and reform, including possibly new groups) a PAC */
-
-static krb5_error_code samba_kdc_reget_pac(void *priv, krb5_context context,
-					   const krb5_principal client_principal,
-					   struct hdb_entry_ex *client,
-					   struct hdb_entry_ex *server, krb5_pac *pac)
+NTSTATUS samba_kdc_update_pac_blob(TALLOC_CTX *mem_ctx,
+				   krb5_context context,
+				   struct smb_iconv_convenience *ic,
+				   krb5_pac *pac, DATA_BLOB *pac_blob)
 {
+	struct auth_serversupplied_info *server_info;
 	krb5_error_code ret;
+	NTSTATUS nt_status;
 
-	unsigned int userAccountControl;
-
-	struct hdb_samba4_private *p = talloc_get_type(server->ctx, struct hdb_samba4_private);
-
-	struct auth_serversupplied_info *server_info_out;
-
-	TALLOC_CTX *mem_ctx = talloc_named(p, 0, "samba_get_pac context");
-
-	if (!mem_ctx) {
-		return ENOMEM;
-	}
-
-	/* The service account may be set not to want the PAC */
-	userAccountControl = ldb_msg_find_attr_as_uint(p->msg, "userAccountControl", 0);
-	if (userAccountControl & UF_NO_AUTH_DATA_REQUIRED) {
-		talloc_free(mem_ctx);
-		*pac = NULL;
-		return 0;
-	}
-
-	ret = kerberos_pac_to_server_info(mem_ctx, p->iconv_convenience,
-					  *pac, context, &server_info_out);
-
-	/* We will compleatly regenerate this pac */
-	krb5_pac_free(context, *pac);
-
+	ret = kerberos_pac_to_server_info(mem_ctx, ic, *pac,
+					  context, &server_info);
 	if (ret) {
-		talloc_free(mem_ctx);
-		return ret;
+		return NT_STATUS_UNSUCCESSFUL;
 	}
 
-	ret = make_pac(context, mem_ctx, p->iconv_convenience, server_info_out, pac);
+	nt_status = samba_get_logon_info_pac_blob(mem_ctx, ic,
+						  server_info, pac_blob);
 
-	talloc_free(mem_ctx);
-	return ret;
+	return nt_status;
 }
 
-static void samba_kdc_build_edata_reply(TALLOC_CTX *tmp_ctx, krb5_data *e_data,
-				       NTSTATUS nt_status)
+void samba_kdc_build_edata_reply(TALLOC_CTX *tmp_ctx, krb5_data *e_data,
+				 NTSTATUS nt_status)
 {
 	PA_DATA pa;
 	unsigned char *buf;
@@ -226,100 +215,3 @@ static void samba_kdc_build_edata_reply(TALLOC_CTX *tmp_ctx, krb5_data *e_data,
 	return;
 }
 
-/* Given an hdb entry (and in particular it's private member), consult
- * the account_ok routine in auth/auth_sam.c for consistancy */
-
-
-static krb5_error_code samba_kdc_check_client_access(void *priv,
-						     krb5_context context,
-						     krb5_kdc_configuration *config,
-						     hdb_entry_ex *client_ex, const char *client_name,
-						     hdb_entry_ex *server_ex, const char *server_name,
-						     KDC_REQ *req,
-						     krb5_data *e_data)
-{
-	krb5_error_code ret;
-	NTSTATUS nt_status;
-	TALLOC_CTX *tmp_ctx;
-	struct hdb_samba4_private *p;
-	char *workstation = NULL;
-	HostAddresses *addresses = req->req_body.addresses;
-	int i;
-	bool password_change;
-
-	tmp_ctx = talloc_new(client_ex->ctx);
-	p = talloc_get_type(client_ex->ctx, struct hdb_samba4_private);
-
-	if (!tmp_ctx) {
-		return ENOMEM;
-	}
-
-	if (addresses) {
-		for (i=0; i < addresses->len; i++) {
-			if (addresses->val->addr_type == KRB5_ADDRESS_NETBIOS) {
-				workstation = talloc_strndup(tmp_ctx, addresses->val->address.data, MIN(addresses->val->address.length, 15));
-				if (workstation) {
-					break;
-				}
-			}
-		}
-	}
-
-	/* Strip space padding */
-	if (workstation) {
-		i = MIN(strlen(workstation), 15);
-		for (; i > 0 && workstation[i - 1] == ' '; i--) {
-			workstation[i - 1] = '\0';
-		}
-	}
-
-	password_change = (server_ex && server_ex->entry.flags.change_pw);
-
-	/* we allow all kinds of trusts here */
-	nt_status = authsam_account_ok(tmp_ctx,
-				       p->samdb,
-				       MSV1_0_ALLOW_SERVER_TRUST_ACCOUNT | MSV1_0_ALLOW_WORKSTATION_TRUST_ACCOUNT,
-				       p->realm_dn,
-				       p->msg,
-				       workstation,
-				       client_name, true, password_change);
-
-	if (NT_STATUS_IS_OK(nt_status)) {
-		/* Now do the standard Heimdal check */
-		ret = kdc_check_flags(context, config,
-				      client_ex, client_name,
-				      server_ex, server_name,
-				      req->msg_type == krb_as_req);
-	} else {
-		if (NT_STATUS_EQUAL(nt_status, NT_STATUS_PASSWORD_MUST_CHANGE))
-			ret = KRB5KDC_ERR_KEY_EXPIRED;
-		else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_PASSWORD_EXPIRED))
-			ret = KRB5KDC_ERR_KEY_EXPIRED;
-		else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCOUNT_EXPIRED))
-			ret = KRB5KDC_ERR_CLIENT_REVOKED;
-		else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCOUNT_DISABLED))
-			ret = KRB5KDC_ERR_CLIENT_REVOKED;
-		else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_INVALID_LOGON_HOURS))
-			ret = KRB5KDC_ERR_CLIENT_REVOKED;
-		else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCOUNT_LOCKED_OUT))
-			ret = KRB5KDC_ERR_CLIENT_REVOKED;
-		else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_INVALID_WORKSTATION))
-			ret = KRB5KDC_ERR_POLICY;
-		else
-			ret = KRB5KDC_ERR_POLICY;
-
-		samba_kdc_build_edata_reply(tmp_ctx, e_data, nt_status);
-	}
-
-	return ret;
-}
-
-struct krb5plugin_windc_ftable windc_plugin_table = {
-	.minor_version = KRB5_WINDC_PLUGING_MINOR,
-	.init = samba_kdc_plugin_init,
-	.fini = samba_kdc_plugin_fini,
-	.pac_generate = samba_kdc_get_pac,
-	.pac_verify = samba_kdc_reget_pac,
-	.client_access = samba_kdc_check_client_access,
-};
-
diff --git a/source4/kdc/pac-glue.h b/source4/kdc/pac-glue.h
new file mode 100644
index 0000000..5cc123f
--- /dev/null
+++ b/source4/kdc/pac-glue.h
@@ -0,0 +1,46 @@
+/*
+   Unix SMB/CIFS implementation.
+
+   PAC Glue between Samba and the KDC
+
+   Copyright (C) Andrew Bartlett <abartlet at samba.org> 2005-2009
+   Copyright (C) Simo Sorce <idra at samba.org> 2010
+
+   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/>.
+*/
+
+
+NTSTATUS samba_get_logon_info_pac_blob(TALLOC_CTX *mem_ctx,
+				       struct smb_iconv_convenience *ic,
+				       struct auth_serversupplied_info *info,
+				       DATA_BLOB *pac_data);
+
+krb5_error_code samba_make_krb5_pac(krb5_context context,
+				    DATA_BLOB *pac_blob,
+				    krb5_pac *pac);
+
+bool samba_princ_needs_pac(struct hdb_entry_ex *princ);
+
+NTSTATUS samba_kdc_get_pac_blob(TALLOC_CTX *mem_ctx,
+				struct hdb_entry_ex *client,
+				DATA_BLOB **_pac_blob);
+
+NTSTATUS samba_kdc_update_pac_blob(TALLOC_CTX *mem_ctx,
+				   krb5_context context,
+				   struct smb_iconv_convenience *ic,
+				   krb5_pac *pac, DATA_BLOB *pac_blob);
+
+void samba_kdc_build_edata_reply(TALLOC_CTX *tmp_ctx, krb5_data *e_data,
+				 NTSTATUS nt_status);
diff --git a/source4/kdc/wdc-samba4.c b/source4/kdc/wdc-samba4.c
new file mode 100644
index 0000000..2ff266e
--- /dev/null
+++ b/source4/kdc/wdc-samba4.c
@@ -0,0 +1,212 @@
+/*
+   Unix SMB/CIFS implementation.
+
+   PAC Glue between Samba and the KDC
+
+   Copyright (C) Andrew Bartlett <abartlet at samba.org> 2005-2009
+   Copyright (C) Simo Sorce <idra at samba.org> 2010
+
+   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/>.
+*/
+


-- 
Samba Shared Repository


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