r10286: This patch is ugly and disgusting, but for now it works better than the other

ideas I have had.

When I get a full list of things I want to do to a krb5_context I'll
either add gsskrb5_ wrappers, or a way of speicfying the krb5 context
per gssapi context.

(I want to ensure that the only krb5_context variables created while
executing Samba4 are via our wrapper).

Andrew Bartlett
(This used to be commit 8a22d46e70e9f863831aba0c9913d195f833d625)

5 files changed, 158 insertions, 118 deletions

diff --git a/source4/auth/kerberos/clikrb5.c b/source4/auth/kerberos/clikrb5.c
index e3f2057b44..85d60a1244 100644
--- a/source4/auth/kerberos/clikrb5.c
+++ b/source4/auth/kerberos/clikrb5.c
@@ -385,107 +385,4 @@ cleanup_princ:
 	return ret;
 }
 
-
-static int smb_krb5_context_destory_1(void *ptr) 
-{
-	struct smb_krb5_context *ctx = ptr;
-	krb5_free_context(ctx->krb5_context); 
-	return 0;
-}
-
-#ifdef HAVE_KRB5_LOG_CONTROL
-static int smb_krb5_context_destory_2(void *ptr) 
-{
-	struct smb_krb5_context *ctx = ptr;
-
-	/* Otherwise krb5_free_context will try and close what we have already free()ed */
-	krb5_set_warn_dest(ctx->krb5_context, NULL);
-	krb5_closelog(ctx->krb5_context, ctx->logf);
-	smb_krb5_context_destory_1(ptr);
-	return 0;
-}
-
-/* We never close down the DEBUG system, and no need to unreference the use */
-static void smb_krb5_debug_close(void *private) {
-	return;
-}
-
-static void smb_krb5_debug_wrapper(const char *timestr, const char *msg, void *private) 
-{
-	DEBUG(3, ("Kerberos: %s\n", msg));
-}
-
-#endif
-
- krb5_error_code smb_krb5_init_context(TALLOC_CTX *parent_ctx, 
-				       struct smb_krb5_context **smb_krb5_context) 
-{
-	krb5_error_code ret;
-	TALLOC_CTX *tmp_ctx;
-	
-	initialize_krb5_error_table();
-	
-	tmp_ctx = talloc_new(parent_ctx);
-	*smb_krb5_context = talloc(tmp_ctx, struct smb_krb5_context);
-
-	if (!*smb_krb5_context || !tmp_ctx) {
-		talloc_free(*smb_krb5_context);
-		talloc_free(tmp_ctx);
-		return ENOMEM;
-	}
-
-	ret = krb5_init_context(&(*smb_krb5_context)->krb5_context);
-	if (ret) {
-		DEBUG(1,("krb5_init_context failed (%s)\n", 
-			 error_message(ret)));
-		return ret;
-	}
-
-	talloc_set_destructor(*smb_krb5_context, smb_krb5_context_destory_1);
-
-	if (lp_realm() && *lp_realm()) {
-		char *upper_realm = strupper_talloc(tmp_ctx, lp_realm());
-		if (!upper_realm) {
-			DEBUG(1,("gensec_krb5_start: could not uppercase realm: %s\n", lp_realm()));
-			talloc_free(tmp_ctx);
-			return ENOMEM;
-		}
-		ret = krb5_set_default_realm((*smb_krb5_context)->krb5_context, lp_realm());
-		if (ret) {
-			DEBUG(1,("krb5_set_default_realm failed (%s)\n", 
-				 smb_get_krb5_error_message((*smb_krb5_context)->krb5_context, ret, tmp_ctx)));
-			talloc_free(tmp_ctx);
-			return ret;
-		}
-	}
-
-#ifdef HAVE_KRB5_LOG_CONTROL
-	/* TODO: Should we have a different name here? */
-	ret = krb5_initlog((*smb_krb5_context)->krb5_context, "Samba", &(*smb_krb5_context)->logf);
-	
-	if (ret) {
-		DEBUG(1,("krb5_initlog failed (%s)\n", 
-			 smb_get_krb5_error_message((*smb_krb5_context)->krb5_context, ret, tmp_ctx)));
-		talloc_free(tmp_ctx);
-		return ret;
-	}
-
-	talloc_set_destructor(*smb_krb5_context, smb_krb5_context_destory_2);
-
-	ret = krb5_addlog_func((*smb_krb5_context)->krb5_context, (*smb_krb5_context)->logf, 0 /* min */, -1 /* max */, 
-			       smb_krb5_debug_wrapper, smb_krb5_debug_close, NULL);
-	if (ret) {
-		DEBUG(1,("krb5_addlog_func failed (%s)\n", 
-			 smb_get_krb5_error_message((*smb_krb5_context)->krb5_context, ret, tmp_ctx)));
-		talloc_free(tmp_ctx);
-		return ret;
-	}
-	krb5_set_warn_dest((*smb_krb5_context)->krb5_context, (*smb_krb5_context)->logf);
-
-#endif	
-	talloc_steal(parent_ctx, *smb_krb5_context);
-	talloc_free(tmp_ctx);
-	return 0;
-}
-
 #endif
diff --git a/source4/auth/kerberos/config.mk b/source4/auth/kerberos/config.mk
index 56ce64fdb1..cc31af44e7 100644
--- a/source4/auth/kerberos/config.mk
+++ b/source4/auth/kerberos/config.mk
@@ -7,7 +7,8 @@ ADD_OBJ_FILES = \
 		auth/kerberos/kerberos_verify.o \
 		auth/kerberos/kerberos_util.o \
 		auth/kerberos/kerberos_pac.o \
-		auth/kerberos/gssapi_parse.o
+		auth/kerberos/gssapi_parse.o \
+		auth/kerberos/krb5_init_context.o
 REQUIRED_SUBSYSTEMS = KERBEROS_LIB NDR_KRB5PAC 
 # End SUBSYSTEM KERBEROS
 #################################
diff --git a/source4/auth/kerberos/kerberos.h b/source4/auth/kerberos/kerberos.h
index 9535094e2b..bc2a1babe9 100644
--- a/source4/auth/kerberos/kerberos.h
+++ b/source4/auth/kerberos/kerberos.h
@@ -21,19 +21,8 @@
 
 #if defined(HAVE_KRB5)
 
-#if defined(HAVE_KRB5_INITLOG) && defined(HAVE_KRB5_ADDLOG_FUNC) && defined (HAVE_KRB5_SET_WARN_DEST) && defined(HAVE_KRB5_LOG_FACILITY)
-#define HAVE_KRB5_LOG_CONTROL
-#else
-#undef HAVE_KRB5_LOG_CONTROL
-#endif
+#include "auth/kerberos/krb5_init_context.h"
 
-struct smb_krb5_context {
-	krb5_context krb5_context;
-#ifdef HAVE_KRB5_LOG_CONTROL
-	krb5_log_facility *logf;
-#endif
-};
-	
 struct ccache_container {
 	struct smb_krb5_context *smb_krb5_context;
 	krb5_ccache ccache;
@@ -118,8 +107,6 @@ char *smb_get_krb5_error_message(krb5_context context, krb5_error_code code, TAL
 			  struct cli_credentials *credentials,
 			  struct smb_krb5_context *smb_krb5_context,
 				 krb5_ccache ccache);
-krb5_error_code smb_krb5_init_context(TALLOC_CTX *parent_ctx, 
-				      struct smb_krb5_context **smb_krb5_context); 
 krb5_error_code salt_principal_from_credentials(TALLOC_CTX *parent_ctx, 
 						struct cli_credentials *machine_account, 
 						struct smb_krb5_context *smb_krb5_context,
diff --git a/source4/auth/kerberos/krb5_init_context.c b/source4/auth/kerberos/krb5_init_context.c
new file mode 100644
index 0000000000..2a8f0624da
--- /dev/null
+++ b/source4/auth/kerberos/krb5_init_context.c
@@ -0,0 +1,126 @@
+/* 
+   Unix SMB/CIFS implementation.
+   Wrapper for krb5_init_context
+
+   Copyright (C) Andrew Bartlett <abartlet@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 2 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, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+#include "system/kerberos.h"
+#include "auth/kerberos/kerberos.h"
+
+static int smb_krb5_context_destroy_1(void *ptr) 
+{
+	struct smb_krb5_context *ctx = ptr;
+	krb5_free_context(ctx->krb5_context); 
+	return 0;
+}
+
+static int smb_krb5_context_destroy_2(void *ptr) 
+{
+	struct smb_krb5_context *ctx = ptr;
+
+	/* Otherwise krb5_free_context will try and close what we have already free()ed */
+	krb5_set_warn_dest(ctx->krb5_context, NULL);
+	krb5_closelog(ctx->krb5_context, ctx->logf);
+	smb_krb5_context_destroy_1(ptr);
+	return 0;
+}
+
+/* We never close down the DEBUG system, and no need to unreference the use */
+static void smb_krb5_debug_close(void *private) {
+	return;
+}
+
+static void smb_krb5_debug_wrapper(const char *timestr, const char *msg, void *private) 
+{
+	DEBUG(3, ("Kerberos: %s\n", msg));
+}
+
+ krb5_error_code smb_krb5_init_context(void *parent_ctx, 
+				       struct smb_krb5_context **smb_krb5_context) 
+{
+	krb5_error_code ret;
+	TALLOC_CTX *tmp_ctx;
+	
+	initialize_krb5_error_table();
+	
+	tmp_ctx = talloc_new(parent_ctx);
+	*smb_krb5_context = talloc(tmp_ctx, struct smb_krb5_context);
+
+	if (!*smb_krb5_context || !tmp_ctx) {
+		talloc_free(*smb_krb5_context);
+		talloc_free(tmp_ctx);
+		return ENOMEM;
+	}
+
+	ret = krb5_init_context(&(*smb_krb5_context)->krb5_context);
+	if (ret) {
+		DEBUG(1,("krb5_init_context failed (%s)\n", 
+			 error_message(ret)));
+		return ret;
+	}
+
+	talloc_set_destructor(*smb_krb5_context, smb_krb5_context_destroy_1);
+
+	if (lp_realm() && *lp_realm()) {
+		char *upper_realm = strupper_talloc(tmp_ctx, lp_realm());
+		if (!upper_realm) {
+			DEBUG(1,("gensec_krb5_start: could not uppercase realm: %s\n", lp_realm()));
+			talloc_free(tmp_ctx);
+			return ENOMEM;
+		}
+		ret = krb5_set_default_realm((*smb_krb5_context)->krb5_context, lp_realm());
+		if (ret) {
+			DEBUG(1,("krb5_set_default_realm failed (%s)\n", 
+				 smb_get_krb5_error_message((*smb_krb5_context)->krb5_context, ret, tmp_ctx)));
+			talloc_free(tmp_ctx);
+			return ret;
+		}
+	}
+
+	/* TODO: Should we have a different name here? */
+	ret = krb5_initlog((*smb_krb5_context)->krb5_context, "Samba", &(*smb_krb5_context)->logf);
+	
+	if (ret) {
+		DEBUG(1,("krb5_initlog failed (%s)\n", 
+			 smb_get_krb5_error_message((*smb_krb5_context)->krb5_context, ret, tmp_ctx)));
+		talloc_free(tmp_ctx);
+		return ret;
+	}
+
+	talloc_set_destructor(*smb_krb5_context, smb_krb5_context_destroy_2);
+
+	ret = krb5_addlog_func((*smb_krb5_context)->krb5_context, (*smb_krb5_context)->logf, 0 /* min */, -1 /* max */, 
+			       smb_krb5_debug_wrapper, smb_krb5_debug_close, NULL);
+	if (ret) {
+		DEBUG(1,("krb5_addlog_func failed (%s)\n", 
+			 smb_get_krb5_error_message((*smb_krb5_context)->krb5_context, ret, tmp_ctx)));
+		talloc_free(tmp_ctx);
+		return ret;
+	}
+	krb5_set_warn_dest((*smb_krb5_context)->krb5_context, (*smb_krb5_context)->logf);
+
+	talloc_steal(parent_ctx, *smb_krb5_context);
+	talloc_free(tmp_ctx);
+	return 0;
+}
+
+ void smb_krb5_free_context(struct smb_krb5_context *smb_krb5_context) 
+{
+	talloc_free(smb_krb5_context);
+}
diff --git a/source4/auth/kerberos/krb5_init_context.h b/source4/auth/kerberos/krb5_init_context.h
new file mode 100644
index 0000000000..8120b8c96d
--- /dev/null
+++ b/source4/auth/kerberos/krb5_init_context.h
@@ -0,0 +1,29 @@
+/* 
+   Unix SMB/CIFS implementation.
+   simple kerberos5 routines for active directory
+   Copyright (C) Andrew Bartlett 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 2 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, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+struct smb_krb5_context {
+	krb5_context krb5_context;
+	krb5_log_facility *logf;
+};
+	
+krb5_error_code smb_krb5_init_context(void *parent_ctx, 
+				      struct smb_krb5_context **smb_krb5_context); 
+void smb_krb5_free_context(struct smb_krb5_context *smb_krb5_context);
+