[SCM] Samba Shared Repository - branch master updated

Stefan Metzmacher metze at samba.org
Thu Dec 15 06:25:04 MST 2011


The branch, master has been updated
       via  19078b9 s3:smbd/globals: remove unused msg_ctx_to_sconn()
       via  0345551 s3:smbd: pass smbd_server_connection and a snumused function pointer to reload_services()
       via  5061dd2 s3:printing/spoolssd: pass event and messaging context to check_updater_child()
       via  06c1c33 s3:rpc_server/spoolss: remove reload_services check from delete_printer_hook()
       via  e412b8b s3:smbd: split smb_conf_updated into parent and child versions
       via  715933a s3:smbd: split ID_CACHE_* message handling into parent and child parts
      from  0429471 lib/ccan: Fix some typos in libccan.m4

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


- Log -----------------------------------------------------------------
commit 19078b9b0564ed2654a1dae1d23488f89aadb41f
Author: Stefan Metzmacher <metze at samba.org>
Date:   Wed Dec 14 13:26:36 2011 +0100

    s3:smbd/globals: remove unused msg_ctx_to_sconn()
    
    metze
    
    Autobuild-User: Stefan Metzmacher <metze at samba.org>
    Autobuild-Date: Thu Dec 15 14:24:59 CET 2011 on sn-devel-104

commit 03455519e70253cb86007ac5a8960999e9aa5fa4
Author: Stefan Metzmacher <metze at samba.org>
Date:   Wed Dec 14 13:25:20 2011 +0100

    s3:smbd: pass smbd_server_connection and a snumused function pointer to reload_services()
    
    metze

commit 5061dd26d314baf38c7e8b3f8e495579baba49de
Author: Stefan Metzmacher <metze at samba.org>
Date:   Wed Dec 14 11:12:49 2011 +0100

    s3:printing/spoolssd: pass event and messaging context to check_updater_child()
    
    metze

commit 06c1c338e3fcaf6460f4e462c7f881ce2abc9ac7
Author: Stefan Metzmacher <metze at samba.org>
Date:   Thu Dec 15 11:03:29 2011 +0100

    s3:rpc_server/spoolss: remove reload_services check from delete_printer_hook()
    
    As the spoolss code can run embedded or external relative to the
    smbd file server process, it's very tricky to verify if a share
    is still in use.
    
    Checking the result of the "deleteprinter command" command should
    be enough to check for success. We should not return WERR_ACCESS_DENIED
    if the share is still in use, by the current client, as the primary
    printer definition is already deleted.
    
    metze

commit e412b8bfcce46720b913d42ac7f56d4e024162f0
Author: Stefan Metzmacher <metze at samba.org>
Date:   Wed Dec 14 12:39:36 2011 +0100

    s3:smbd: split smb_conf_updated into parent and child versions
    
    metze

commit 715933a3d3d1023df0d77c1765850e8579b84dfc
Author: Stefan Metzmacher <metze at samba.org>
Date:   Wed Dec 14 10:23:30 2011 +0100

    s3:smbd: split ID_CACHE_* message handling into parent and child parts
    
    metze

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

Summary of changes:
 source3/Makefile.in                         |    2 +-
 source3/printing/spoolssd.c                 |    9 +-
 source3/rpc_server/spoolss/srv_spoolss_nt.c |   20 ++--
 source3/smbd/globals.c                      |   13 --
 source3/smbd/globals.h                      |    2 -
 source3/smbd/msg_idmap.c                    |  174 ---------------------------
 source3/smbd/negprot.c                      |    4 +-
 source3/smbd/process.c                      |  138 +++++++++++++++++++++-
 source3/smbd/proto.h                        |    7 +-
 source3/smbd/reply.c                        |    2 +-
 source3/smbd/server.c                       |   74 +++++++++---
 source3/smbd/server_reload.c                |   20 ++--
 source3/smbd/sesssetup.c                    |   10 +-
 source3/smbd/smb2_sesssetup.c               |    2 +-
 source3/torture/vfstest.c                   |    2 +-
 source3/wscript_build                       |    2 +-
 16 files changed, 232 insertions(+), 249 deletions(-)
 delete mode 100644 source3/smbd/msg_idmap.c


Changeset truncated at 500 lines:

diff --git a/source3/Makefile.in b/source3/Makefile.in
index b0c17f6..1389293 100644
--- a/source3/Makefile.in
+++ b/source3/Makefile.in
@@ -914,7 +914,7 @@ AUTH_OBJ = auth/auth.o @AUTH_STATIC@ auth/auth_util.o auth/token_util.o \
 
 MANGLE_OBJ = smbd/mangle.o smbd/mangle_hash.o smbd/mangle_hash2.o
 
-SMBD_OBJ_MAIN = smbd/server.o smbd/server_exit.o smbd/msg_idmap.o
+SMBD_OBJ_MAIN = smbd/server.o smbd/server_exit.o
 
 BUILDOPT_OBJ = smbd/build_options.o
 
diff --git a/source3/printing/spoolssd.c b/source3/printing/spoolssd.c
index 06ce61b..fa722e2 100644
--- a/source3/printing/spoolssd.c
+++ b/source3/printing/spoolssd.c
@@ -489,7 +489,8 @@ static void spoolss_handle_client(struct tevent_req *req)
 extern pid_t background_lpq_updater_pid;
 static char *bq_logfile;
 
-static void check_updater_child(void)
+static void check_updater_child(struct tevent_context *ev_ctx,
+				struct messaging_context *msg_ctx)
 {
 	int status;
 	pid_t pid;
@@ -501,9 +502,7 @@ static void check_updater_child(void)
 	pid = sys_waitpid(background_lpq_updater_pid, &status, WNOHANG);
 	if (pid > 0) {
 		DEBUG(2, ("The background queue child died... Restarting!\n"));
-		pid = start_background_queue(server_event_context(),
-					     server_messaging_context(),
-					     bq_logfile);
+		pid = start_background_queue(ev_ctx, msg_ctx, bq_logfile);
 		background_lpq_updater_pid = pid;
 	}
 }
@@ -543,7 +542,7 @@ static void spoolssd_sigchld_handler(struct tevent_context *ev_ctx,
 	pfh_manage_pool(ev_ctx, msg_ctx, &pf_spoolss_cfg, spoolss_pool);
 
 	/* also check if the updater child is alive and well */
-	check_updater_child();
+	check_updater_child(ev_ctx, msg_ctx);
 }
 
 static bool spoolssd_setup_children_monitor(struct tevent_context *ev_ctx,
diff --git a/source3/rpc_server/spoolss/srv_spoolss_nt.c b/source3/rpc_server/spoolss/srv_spoolss_nt.c
index 1a9111c..87df565 100644
--- a/source3/rpc_server/spoolss/srv_spoolss_nt.c
+++ b/source3/rpc_server/spoolss/srv_spoolss_nt.c
@@ -417,14 +417,6 @@ static WERROR delete_printer_hook(TALLOC_CTX *ctx, struct security_token *token,
 	if (ret != 0)
 		return WERR_BADFID; /* What to return here? */
 
-	/* go ahead and re-read the services immediately */
-	become_root();
-	reload_services(msg_ctx, -1, false);
-	unbecome_root();
-
-	if ( lp_servicenumber( sharename ) >= 0 )
-		return WERR_ACCESS_DENIED;
-
 	return WERR_OK;
 }
 
@@ -6210,6 +6202,16 @@ static WERROR add_port_hook(TALLOC_CTX *ctx, struct security_token *token, const
 /****************************************************************************
 ****************************************************************************/
 
+static bool spoolss_conn_snum_used(struct smbd_server_connection *sconn,
+				   int snum)
+{
+	/*
+	 * As we do not know if we are embedded in the file server process
+	 * or not, we have to pretend that all shares are in use.
+	 */
+	return true;
+}
+
 static bool add_printer_hook(TALLOC_CTX *ctx, struct security_token *token,
 			     struct spoolss_SetPrinterInfo2 *info2,
 			     const char *remote_machine,
@@ -6268,7 +6270,7 @@ static bool add_printer_hook(TALLOC_CTX *ctx, struct security_token *token,
 
 	/* reload our services immediately */
 	become_root();
-	reload_services(msg_ctx, -1, false);
+	reload_services(NULL, spoolss_conn_snum_used, false);
 	unbecome_root();
 
 	numlines = 0;
diff --git a/source3/smbd/globals.c b/source3/smbd/globals.c
index 3199a37..ff8c51b 100644
--- a/source3/smbd/globals.c
+++ b/source3/smbd/globals.c
@@ -104,19 +104,6 @@ bool exit_firsttime = true;
 
 struct smbd_server_connection *smbd_server_conn = NULL;
 
-struct smbd_server_connection *msg_ctx_to_sconn(struct messaging_context *msg_ctx)
-{
-	struct server_id my_id, msg_id;
-
-	my_id = messaging_server_id(smbd_server_conn->msg_ctx);
-	msg_id = messaging_server_id(msg_ctx);
-
-	if (!procid_equal(&my_id, &msg_id)) {
-		return NULL;
-	}
-	return smbd_server_conn;
-}
-
 struct memcache *smbd_memcache(void)
 {
 	if (!smbd_memcache_ctx) {
diff --git a/source3/smbd/globals.h b/source3/smbd/globals.h
index d5b2de7..3c6aa12 100644
--- a/source3/smbd/globals.h
+++ b/source3/smbd/globals.h
@@ -614,6 +614,4 @@ struct smbd_server_connection {
 
 extern struct smbd_server_connection *smbd_server_conn;
 
-struct smbd_server_connection *msg_ctx_to_sconn(struct messaging_context *msg_ctx);
-
 void smbd_init_globals(void);
diff --git a/source3/smbd/msg_idmap.c b/source3/smbd/msg_idmap.c
deleted file mode 100644
index 757cac0..0000000
--- a/source3/smbd/msg_idmap.c
+++ /dev/null
@@ -1,174 +0,0 @@
-/*
- * Samba Unix/Linux SMB client library
- *
- * Copyright (C) Gregor Beck 2011
- *
- * 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 "smbd/globals.h"
-#include "smbd/smbd.h"
-#include "../libcli/security/dom_sid.h"
-#include "../libcli/security/security_token.h"
-#include "idmap_cache.h"
-#include "passdb/lookup_sid.h"
-#include "auth.h"
-#include "messages.h"
-#include "lib/id_cache.h"
-
-static bool uid_in_use(const struct user_struct *user, uid_t uid)
-{
-	while (user) {
-		if (user->session_info &&
-		    (user->session_info->unix_token->uid == uid)) {
-			return true;
-		}
-		user = user->next;
-	}
-	return false;
-}
-
-static bool gid_in_use(const struct user_struct *user, gid_t gid)
-{
-	while (user) {
-		if (user->session_info != NULL) {
-			int i;
-			struct security_unix_token *utok;
-
-			utok = user->session_info->unix_token;
-			if (utok->gid == gid) {
-				return true;
-			}
-			for(i=0; i<utok->ngroups; i++) {
-				if (utok->groups[i] == gid) {
-					return true;
-				}
-			}
-		}
-		user = user->next;
-	}
-	return false;
-}
-
-static bool sid_in_use(const struct user_struct *user,
-		       const struct dom_sid *psid)
-{
-	while (user) {
-		struct security_token *tok;
-
-		if (user->session_info == NULL) {
-			continue;
-		}
-		tok = user->session_info->security_token;
-		if (tok == NULL) {
-			/*
-			 * Not sure session_info->security_token can
-			 * ever be NULL. This check might be not
-			 * necessary.
-			 */
-			continue;
-		}
-		if (security_token_has_sid(tok, psid)) {
-			return true;
-		}
-		user = user->next;
-	}
-	return false;
-}
-
-static bool id_in_use(const struct user_struct *user,
-		      const struct id_cache_ref *id)
-{
-	switch(id->type) {
-	case UID:
-		return uid_in_use(user, id->id.uid);
-	case GID:
-		return gid_in_use(user, id->id.gid);
-	case SID:
-		return sid_in_use(user, &id->id.sid);
-	default:
-		break;
-	}
-	return false;
-}
-
-static void id_cache_kill(struct messaging_context *msg_ctx,
-			  void *private_data,
-			  uint32_t msg_type,
-			  struct server_id server_id,
-			  DATA_BLOB* data)
-{
-	const char *msg = (data && data->data)
-		? (const char *)data->data : "<NULL>";
-	struct smbd_server_connection *sconn;
-	struct user_struct *validated_users;
-	struct id_cache_ref id;
-
-	sconn = msg_ctx_to_sconn(msg_ctx);
-	if (sconn == NULL) {
-		DEBUG(1, ("could not find sconn\n"));
-		return;
-	}
-
-	validated_users = sconn->smb1.sessions.validated_users;
-
-	if (!id_cache_ref_parse(msg, &id)) {
-		DEBUG(0, ("Invalid ?ID: %s\n", msg));
-		return;
-	}
-
-	if (am_parent) {
-		messaging_send_to_children(msg_ctx, msg_type, data);
-	}
-
-	if (id_in_use(validated_users, &id)) {
-		exit_server_cleanly(msg);
-	}
-	id_cache_delete_from_cache(&id);
-}
-
-static void id_cache_flush(struct messaging_context *ctx,
-			   void* data,
-			   uint32_t msg_type,
-			   struct server_id srv_id,
-			   DATA_BLOB* msg_data)
-{
-	id_cache_flush_message(ctx, data, msg_type, srv_id, msg_data);
-
-	if (am_parent) {
-		messaging_send_to_children(ctx, msg_type, msg_data);
-	}
-}
-
-static void id_cache_delete(struct messaging_context *ctx,
-			    void* data,
-			    uint32_t msg_type,
-			    struct server_id srv_id,
-			    DATA_BLOB* msg_data)
-{
-	id_cache_delete_message(ctx, data, msg_type, srv_id, msg_data);
-
-	if (am_parent) {
-		messaging_send_to_children(ctx, msg_type, msg_data);
-	}
-}
-
-
-void msg_idmap_register_msg(struct messaging_context *ctx)
-{
-	messaging_register(ctx, NULL, ID_CACHE_FLUSH,  id_cache_flush);
-	messaging_register(ctx, NULL, ID_CACHE_DELETE, id_cache_delete);
-	messaging_register(ctx, NULL, ID_CACHE_KILL, id_cache_kill);
-}
diff --git a/source3/smbd/negprot.c b/source3/smbd/negprot.c
index ae9ce5a..52ef96d 100644
--- a/source3/smbd/negprot.c
+++ b/source3/smbd/negprot.c
@@ -714,7 +714,7 @@ void reply_negprot(struct smb_request *req)
 	}
 
 	/* possibly reload - change of architecture */
-	reload_services(sconn->msg_ctx, sconn->sock, True);
+	reload_services(sconn, conn_snum_used, true);
 
 	/* moved from the netbios session setup code since we don't have that 
 	   when the client connects to port 445.  Of course there is a small
@@ -740,7 +740,7 @@ void reply_negprot(struct smb_request *req)
 
 	if(choice != -1) {
 		fstrcpy(remote_proto,supported_protocols[protocol].short_name);
-		reload_services(sconn->msg_ctx, sconn->sock, True);
+		reload_services(sconn, conn_snum_used, true);
 		supported_protocols[protocol].proto_reply_fn(req, choice);
 		DEBUG(3,("Selected protocol %s\n",supported_protocols[protocol].proto_name));
 	} else {
diff --git a/source3/smbd/process.c b/source3/smbd/process.c
index b3e4d0d..c448267 100644
--- a/source3/smbd/process.c
+++ b/source3/smbd/process.c
@@ -36,6 +36,9 @@
 #include "rpc_server/spoolss/srv_spoolss_nt.h"
 #include "libsmb/libsmb.h"
 #include "../lib/util/tevent_ntstatus.h"
+#include "../libcli/security/dom_sid.h"
+#include "../libcli/security/security_token.h"
+#include "lib/id_cache.h"
 
 extern bool global_machine_password_needs_changing;
 
@@ -905,7 +908,7 @@ static void smbd_sig_hup_handler(struct tevent_context *ev,
 
 	change_to_root_user();
 	DEBUG(1,("Reloading services after SIGHUP\n"));
-	reload_services(sconn->msg_ctx, sconn->sock, false);
+	reload_services(sconn, conn_snum_used, false);
 }
 
 void smbd_setup_sig_hup_handler(struct smbd_server_connection *sconn)
@@ -922,6 +925,22 @@ void smbd_setup_sig_hup_handler(struct smbd_server_connection *sconn)
 	}
 }
 
+static void smbd_conf_updated(struct messaging_context *msg,
+			      void *private_data,
+			      uint32_t msg_type,
+			      struct server_id server_id,
+			      DATA_BLOB *data)
+{
+	struct smbd_server_connection *sconn =
+		talloc_get_type_abort(private_data,
+		struct smbd_server_connection);
+
+	DEBUG(10,("smbd_conf_updated: Got message saying smb.conf was "
+		  "updated. Reloading.\n"));
+	change_to_root_user();
+	reload_services(sconn, conn_snum_used, false);
+}
+
 static NTSTATUS smbd_server_connection_loop_once(struct tevent_context *ev_ctx,
 						 struct smbd_server_connection *conn)
 {
@@ -2202,7 +2221,7 @@ static void check_reload(struct smbd_server_connection *sconn, time_t t)
 	}
 
 	if (t >= last_smb_conf_reload_time+SMBD_RELOAD_CHECK) {
-		reload_services(sconn->msg_ctx, sconn->sock, True);
+		reload_services(sconn, conn_snum_used, true);
 		last_smb_conf_reload_time = t;
 	}
 }
@@ -2960,6 +2979,109 @@ static NTSTATUS smbd_register_ips(struct smbd_server_connection *sconn,
 
 #endif
 
+static bool uid_in_use(const struct user_struct *user, uid_t uid)
+{
+	while (user) {
+		if (user->session_info &&
+		    (user->session_info->unix_token->uid == uid)) {
+			return true;
+		}
+		user = user->next;
+	}
+	return false;
+}
+
+static bool gid_in_use(const struct user_struct *user, gid_t gid)
+{
+	while (user) {
+		if (user->session_info != NULL) {
+			int i;
+			struct security_unix_token *utok;
+
+			utok = user->session_info->unix_token;
+			if (utok->gid == gid) {
+				return true;
+			}
+			for(i=0; i<utok->ngroups; i++) {
+				if (utok->groups[i] == gid) {
+					return true;
+				}
+			}
+		}
+		user = user->next;
+	}
+	return false;
+}
+
+static bool sid_in_use(const struct user_struct *user,
+		       const struct dom_sid *psid)
+{
+	while (user) {
+		struct security_token *tok;
+
+		if (user->session_info == NULL) {
+			continue;
+		}
+		tok = user->session_info->security_token;
+		if (tok == NULL) {
+			/*
+			 * Not sure session_info->security_token can
+			 * ever be NULL. This check might be not
+			 * necessary.
+			 */
+			continue;
+		}
+		if (security_token_has_sid(tok, psid)) {
+			return true;
+		}
+		user = user->next;
+	}
+	return false;
+}
+
+static bool id_in_use(const struct user_struct *user,
+		      const struct id_cache_ref *id)
+{
+	switch(id->type) {
+	case UID:
+		return uid_in_use(user, id->id.uid);
+	case GID:
+		return gid_in_use(user, id->id.gid);
+	case SID:
+		return sid_in_use(user, &id->id.sid);
+	default:
+		break;
+	}
+	return false;
+}
+
+static void smbd_id_cache_kill(struct messaging_context *msg_ctx,
+			       void *private_data,
+			       uint32_t msg_type,
+			       struct server_id server_id,
+			       DATA_BLOB* data)
+{
+	const char *msg = (data && data->data)
+		? (const char *)data->data : "<NULL>";
+	struct user_struct *validated_users;
+	struct id_cache_ref id;
+	struct smbd_server_connection *sconn =
+		talloc_get_type_abort(private_data,
+		struct smbd_server_connection);
+
+	validated_users = sconn->smb1.sessions.validated_users;
+
+	if (!id_cache_ref_parse(msg, &id)) {
+		DEBUG(0, ("Invalid ?ID: %s\n", msg));
+		return;
+	}
+
+	if (id_in_use(validated_users, &id)) {
+		exit_server_cleanly(msg);
+	}
+	id_cache_delete_from_cache(&id);
+}
+
 /****************************************************************************
  Process commands from the client
 ****************************************************************************/
@@ -3061,7 +3183,7 @@ void smbd_process(struct tevent_context *ev_ctx,
 	/* this is needed so that we get decent entries
 	   in smbstatus for port 445 connects */
 	set_remote_machine_name(remaddr, false);
-	reload_services(sconn->msg_ctx, sconn->sock, true);
+	reload_services(sconn, conn_snum_used, true);


-- 
Samba Shared Repository


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