[SCM] Samba Shared Repository - branch master updated

Bo Yang boyang at samba.org
Tue Jan 5 04:06:36 MST 2010


The branch, master has been updated
       via  d06fb8e0.. s3: List trusted domains from wcache when domain is offline.
       via  133638c... s3: Make winbindd_cache.c aware of domain offline to avoid unnecessary backend query.
       via  36493bf... s3: Fix infinite loop in NCACN_IP_TCP asa there is no timeout. Assume lsa_pipe_tcp is ok but network is down, then send request is ok, but select() on writeable fds loops forever since there is no response.
      from  da41f23... s3 net: Fix up a share type translation and translate some more strings

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


- Log -----------------------------------------------------------------
commit d06fb8e02706559e91c6d185427409bb093bb896
Author: Bo Yang <boyang at samba.org>
Date:   Wed Jan 6 19:13:59 2010 +0800

    s3: List trusted domains from wcache when domain is offline.
    
    Signed-off-by: Bo Yang <boyang at samba.org>

commit 133638c8aea7280d01b5a23150428977e9ff0e11
Author: Bo Yang <boyang at samba.org>
Date:   Wed Jan 6 15:05:20 2010 +0800

    s3: Make winbindd_cache.c aware of domain offline to avoid unnecessary backend query.
    
    Signed-off-by: Bo Yang <boyang at samba.org>

commit 36493bf2f6634b84c57107bcb86bcbf3e82e80fc
Author: Bo Yang <boyang at samba.org>
Date:   Wed Jan 6 12:13:35 2010 +0800

    s3: Fix infinite loop in NCACN_IP_TCP asa there is no timeout. Assume lsa_pipe_tcp is ok but network is down, then send request is ok, but select() on writeable fds loops forever since there is no response.
    
    Signed-off-by: Bo Yang <boyang at samba.org>

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

Summary of changes:
 source3/include/proto.h                 |    5 +
 source3/rpc_client/cli_pipe.c           |   26 ++-
 source3/rpc_client/ndr.c                |   15 ++
 source3/rpc_client/rpc_transport_np.c   |   12 +
 source3/rpc_client/rpc_transport_smbd.c |   10 +
 source3/rpc_client/rpc_transport_sock.c |   53 +++++
 source3/winbindd/winbindd_cache.c       |  380 ++++++++++++++++++++++++++++++-
 source3/winbindd/winbindd_cm.c          |    3 +-
 source3/winbindd/winbindd_rpc.c         |   14 +-
 9 files changed, 501 insertions(+), 17 deletions(-)


Changeset truncated at 500 lines:

diff --git a/source3/include/proto.h b/source3/include/proto.h
index b3921c4..d956ede 100644
--- a/source3/include/proto.h
+++ b/source3/include/proto.h
@@ -5396,6 +5396,7 @@ NTSTATUS rpc_transport_np_init(TALLOC_CTX *mem_ctx, struct cli_state *cli,
 			       const struct ndr_syntax_id *abstract_syntax,
 			       struct rpc_cli_transport **presult);
 struct cli_state *rpc_pipe_np_smb_conn(struct rpc_pipe_client *p);
+void rpccli_close_np_fd(struct rpc_pipe_client *p);
 
 /* The following definitions come from rpc_client/rpc_transport_smbd.c  */
 
@@ -5426,11 +5427,15 @@ NTSTATUS rpc_transport_smbd_init(TALLOC_CTX *mem_ctx,
 				 struct rpc_cli_smbd_conn *conn,
 				 const struct ndr_syntax_id *abstract_syntax,
 				 struct rpc_cli_transport **presult);
+struct cli_state *rpc_pipe_smbd_smb_conn(struct rpc_pipe_client *p);
 
 /* The following definitions come from rpc_client/rpc_transport_sock.c  */
 
 NTSTATUS rpc_transport_sock_init(TALLOC_CTX *mem_ctx, int fd,
 				 struct rpc_cli_transport **presult);
+int rpccli_set_sock_timeout(struct rpc_pipe_client *rpccli, int timeout);
+void rpccli_close_sock_fd(struct rpc_pipe_client *rpccli);
+bool rpc_pipe_tcp_connection_ok(struct rpc_pipe_client *rpccli);
 
 /* The following definitions come from rpc_client/cli_samr.c  */
 
diff --git a/source3/rpc_client/cli_pipe.c b/source3/rpc_client/cli_pipe.c
index 9653166..48e2f9e 100644
--- a/source3/rpc_client/cli_pipe.c
+++ b/source3/rpc_client/cli_pipe.c
@@ -3035,12 +3035,30 @@ NTSTATUS rpc_pipe_bind(struct rpc_pipe_client *cli,
 unsigned int rpccli_set_timeout(struct rpc_pipe_client *rpc_cli,
 				unsigned int timeout)
 {
-	struct cli_state *cli = rpc_pipe_np_smb_conn(rpc_cli);
+	struct cli_state *cli;
 
-	if (cli == NULL) {
-		return 0;
+	if (rpc_cli->transport->transport == NCACN_NP) {
+		cli = rpc_pipe_np_smb_conn(rpc_cli);
+		if (cli == NULL) {
+			return 0;
+		}
+		return cli_set_timeout(cli, timeout);
+	}
+
+	if (rpc_cli->transport->transport == NCACN_IP_TCP ||
+	    rpc_cli->transport->transport == NCALRPC) {
+		return rpccli_set_sock_timeout(rpc_cli, timeout);
 	}
-	return cli_set_timeout(cli, timeout);
+
+	if (rpc_cli->transport->transport == NCACN_INTERNAL) {
+		cli = rpc_pipe_smbd_smb_conn(rpc_cli);
+		if (!cli) {
+			return 0;
+		}
+		return cli_set_timeout(cli, timeout);
+	}
+
+	return 0;
 }
 
 bool rpccli_get_pwd_hash(struct rpc_pipe_client *rpc_cli, uint8_t nt_hash[16])
diff --git a/source3/rpc_client/ndr.c b/source3/rpc_client/ndr.c
index 6433a7d..4e8634d 100644
--- a/source3/rpc_client/ndr.c
+++ b/source3/rpc_client/ndr.c
@@ -182,6 +182,21 @@ NTSTATUS cli_do_rpc_ndr(struct rpc_pipe_client *cli,
 	}
 
 	status = cli_do_rpc_ndr_recv(req, mem_ctx);
+
+	/*
+	 * NT_STATUS_IO_TIMEOUT indicates network problem,
+	 * tear the connection apart.
+	 */
+	if (NT_STATUS_EQUAL(status, NT_STATUS_IO_TIMEOUT)) {
+		if (cli->transport->transport == NCACN_IP_TCP ||
+		    cli->transport->transport == NCALRPC) {
+			rpccli_close_sock_fd(cli);
+		}
+
+		if (cli->transport->transport == NCACN_NP) {
+			rpccli_close_np_fd(cli);
+		}
+	}
  fail:
 	TALLOC_FREE(frame);
 	return status;
diff --git a/source3/rpc_client/rpc_transport_np.c b/source3/rpc_client/rpc_transport_np.c
index de748d9..9f8872c 100644
--- a/source3/rpc_client/rpc_transport_np.c
+++ b/source3/rpc_client/rpc_transport_np.c
@@ -402,3 +402,15 @@ struct cli_state *rpc_pipe_np_smb_conn(struct rpc_pipe_client *p)
 	}
 	return state->cli;
 }
+
+void rpccli_close_np_fd(struct rpc_pipe_client *p)
+{
+	struct cli_state *cli = rpc_pipe_np_smb_conn(p);
+	if (cli) {
+		if (cli->fd != -1) {
+			close(cli->fd);
+			cli->fd = -1;
+		}
+	}
+	return;
+}
diff --git a/source3/rpc_client/rpc_transport_smbd.c b/source3/rpc_client/rpc_transport_smbd.c
index 171048a..929e553 100644
--- a/source3/rpc_client/rpc_transport_smbd.c
+++ b/source3/rpc_client/rpc_transport_smbd.c
@@ -682,3 +682,13 @@ NTSTATUS rpc_transport_smbd_init(TALLOC_CTX *mem_ctx,
 	TALLOC_FREE(frame);
 	return status;
 }
+
+struct cli_state *rpc_pipe_smbd_smb_conn(struct rpc_pipe_client *p)
+{
+	struct rpc_transport_smbd_state *state = talloc_get_type(p->transport->priv,
+		struct rpc_transport_smbd_state);
+	if (!state || !state->conn) {
+		return NULL;
+	}
+	return state->conn->cli;
+}
diff --git a/source3/rpc_client/rpc_transport_sock.c b/source3/rpc_client/rpc_transport_sock.c
index 4ab6500..df060e6 100644
--- a/source3/rpc_client/rpc_transport_sock.c
+++ b/source3/rpc_client/rpc_transport_sock.c
@@ -24,6 +24,7 @@
 
 struct rpc_transport_sock_state {
 	int fd;
+	int timeout;
 };
 
 static int rpc_transport_sock_state_destructor(struct rpc_transport_sock_state *s)
@@ -51,6 +52,7 @@ static struct tevent_req *rpc_sock_read_send(TALLOC_CTX *mem_ctx,
 		priv, struct rpc_transport_sock_state);
 	struct tevent_req *req, *subreq;
 	struct rpc_sock_read_state *state;
+	struct timeval endtime;
 
 	req = tevent_req_create(mem_ctx, &state, struct rpc_sock_read_state);
 	if (req == NULL) {
@@ -61,10 +63,16 @@ static struct tevent_req *rpc_sock_read_send(TALLOC_CTX *mem_ctx,
 		return tevent_req_post(req, ev);
 	}
 	state->transp = sock_transp;
+	endtime = timeval_current_ofs(0, sock_transp->timeout * 1000);
 	subreq = async_recv_send(state, ev, sock_transp->fd, data, size, 0);
 	if (subreq == NULL) {
 		goto fail;
 	}
+
+	if (!tevent_req_set_endtime(subreq, ev, endtime)) {
+		goto fail;
+	}
+
 	tevent_req_set_callback(subreq, rpc_sock_read_done, req);
 	return req;
  fail:
@@ -121,6 +129,7 @@ static struct tevent_req *rpc_sock_write_send(TALLOC_CTX *mem_ctx,
 		priv, struct rpc_transport_sock_state);
 	struct tevent_req *req, *subreq;
 	struct rpc_sock_write_state *state;
+	struct timeval endtime;
 
 	req = tevent_req_create(mem_ctx, &state, struct rpc_sock_write_state);
 	if (req == NULL) {
@@ -131,10 +140,16 @@ static struct tevent_req *rpc_sock_write_send(TALLOC_CTX *mem_ctx,
 		return tevent_req_post(req, ev);
 	}
 	state->transp = sock_transp;
+	endtime = timeval_current_ofs(0, sock_transp->timeout * 1000);
 	subreq = async_send_send(state, ev, sock_transp->fd, data, size, 0);
 	if (subreq == NULL) {
 		goto fail;
 	}
+
+	if (!tevent_req_set_endtime(subreq, ev, endtime)) {
+		goto fail;
+	}
+
 	tevent_req_set_callback(subreq, rpc_sock_write_done, req);
 	return req;
  fail:
@@ -193,6 +208,7 @@ NTSTATUS rpc_transport_sock_init(TALLOC_CTX *mem_ctx, int fd,
 	result->priv = state;
 
 	state->fd = fd;
+	state->timeout = 10000; /* 10 seconds. */
 	talloc_set_destructor(state, rpc_transport_sock_state_destructor);
 
 	result->trans_send = NULL;
@@ -205,3 +221,40 @@ NTSTATUS rpc_transport_sock_init(TALLOC_CTX *mem_ctx, int fd,
 	*presult = result;
 	return NT_STATUS_OK;
 }
+
+int rpccli_set_sock_timeout(struct rpc_pipe_client *cli, int timeout)
+{
+	struct rpc_transport_sock_state *state = talloc_get_type(cli->transport->priv,
+							struct rpc_transport_sock_state);
+	int orig_timeout;
+	if (!state) {
+		return 0;
+	}
+	orig_timeout = state->timeout;
+	state->timeout = timeout;
+	return orig_timeout;
+}
+
+void rpccli_close_sock_fd(struct rpc_pipe_client *cli)
+{
+	struct rpc_transport_sock_state *state = talloc_get_type(cli->transport->priv,
+							struct rpc_transport_sock_state);
+	if (state) {
+		if (state->fd != -1) {
+			close(state->fd);
+			state->fd = -1;
+		}
+	}
+	return;
+}
+
+bool rpc_pipe_tcp_connection_ok(struct rpc_pipe_client *cli)
+{
+	struct rpc_transport_sock_state *state = talloc_get_type(cli->transport->priv,
+							struct rpc_transport_sock_state);
+	if (state && state->fd != -1) {
+		return true;
+	}
+
+	return false;
+}
diff --git a/source3/winbindd/winbindd_cache.c b/source3/winbindd/winbindd_cache.c
index ddbd9d9..68972dd 100644
--- a/source3/winbindd/winbindd_cache.c
+++ b/source3/winbindd/winbindd_cache.c
@@ -1380,6 +1380,7 @@ static NTSTATUS query_user_list(struct winbindd_domain *domain,
 	struct cache_entry *centry = NULL;
 	NTSTATUS status;
 	unsigned int i, retry;
+	bool old_status = domain->online;
 
 	if (!cache->tdb)
 		goto do_query;
@@ -1388,6 +1389,7 @@ static NTSTATUS query_user_list(struct winbindd_domain *domain,
 	if (!centry)
 		goto do_query;
 
+do_fetch_cache:
 	*num_entries = centry_uint32(centry);
 
 	if (*num_entries == 0)
@@ -1448,12 +1450,44 @@ do_query:
 				  "connection cache\n"));
 			invalidate_cm_connection(&domain->conn);
 		}
+		if (NT_STATUS_EQUAL(status, NT_STATUS_IO_TIMEOUT) ||
+		    NT_STATUS_EQUAL(status, NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND)) {
+			if (!domain->internal && old_status) {
+				set_domain_offline(domain);
+			}
+			/* store partial response. */
+			if (*num_entries > 0) {
+				/*
+				 * humm, what about the status used for cache?
+				 * Should it be NT_STATUS_OK?
+				 */
+				break;
+			}
+			/*
+			 * domain is offline now, and there is no user entries,
+			 * try to fetch from cache again.
+			 */
+			if (cache->tdb && !domain->online && !domain->internal && old_status) {
+				centry = wcache_fetch(cache, domain, "UL/%s", domain->name);
+				/* partial response... */
+				if (!centry) {
+					goto skip_save;
+				} else {
+					goto do_fetch_cache;
+				}
+			} else {
+				goto skip_save;
+			}
+		}
 
 	} while (NT_STATUS_V(status) == NT_STATUS_V(NT_STATUS_UNSUCCESSFUL) && 
 		 (retry++ < 5));
 
 	/* and save it */
 	refresh_sequence_number(domain, false);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
 	centry = centry_start(domain, status);
 	if (!centry)
 		goto skip_save;
@@ -1497,7 +1531,9 @@ static NTSTATUS enum_dom_groups(struct winbindd_domain *domain,
 	struct cache_entry *centry = NULL;
 	NTSTATUS status;
 	unsigned int i;
+	bool old_status;
 
+	old_status = domain->online;
 	if (!cache->tdb)
 		goto do_query;
 
@@ -1505,6 +1541,7 @@ static NTSTATUS enum_dom_groups(struct winbindd_domain *domain,
 	if (!centry)
 		goto do_query;
 
+do_fetch_cache:
 	*num_entries = centry_uint32(centry);
 
 	if (*num_entries == 0)
@@ -1543,8 +1580,26 @@ do_query:
 
 	status = domain->backend->enum_dom_groups(domain, mem_ctx, num_entries, info);
 
+	if (NT_STATUS_EQUAL(status, NT_STATUS_IO_TIMEOUT) ||
+	    NT_STATUS_EQUAL(status, NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND)) {
+		if (!domain->internal && old_status) {
+			set_domain_offline(domain);
+		}
+		if (cache->tdb &&
+			!domain->online &&
+			!domain->internal &&
+			old_status) {
+			centry = wcache_fetch(cache, domain, "GL/%s/domain", domain->name);
+			if (centry) {
+				goto do_fetch_cache;
+			}
+		}
+	}
 	/* and save it */
 	refresh_sequence_number(domain, false);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
 	centry = centry_start(domain, status);
 	if (!centry)
 		goto skip_save;
@@ -1571,7 +1626,9 @@ static NTSTATUS enum_local_groups(struct winbindd_domain *domain,
 	struct cache_entry *centry = NULL;
 	NTSTATUS status;
 	unsigned int i;
+	bool old_status;
 
+	old_status = domain->online;
 	if (!cache->tdb)
 		goto do_query;
 
@@ -1579,6 +1636,7 @@ static NTSTATUS enum_local_groups(struct winbindd_domain *domain,
 	if (!centry)
 		goto do_query;
 
+do_fetch_cache:
 	*num_entries = centry_uint32(centry);
 
 	if (*num_entries == 0)
@@ -1627,8 +1685,26 @@ do_query:
 
 	status = domain->backend->enum_local_groups(domain, mem_ctx, num_entries, info);
 
+	if (NT_STATUS_EQUAL(status, NT_STATUS_IO_TIMEOUT) ||
+		NT_STATUS_EQUAL(status, NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND)) {
+		if (!domain->internal && old_status) {
+			set_domain_offline(domain);
+		}
+		if (cache->tdb &&
+			!domain->internal &&
+			!domain->online &&
+			old_status) {
+			centry = wcache_fetch(cache, domain, "GL/%s/local", domain->name);
+			if (centry) {
+				goto do_fetch_cache;
+			}
+		}
+	}
 	/* and save it */
 	refresh_sequence_number(domain, false);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
 	centry = centry_start(domain, status);
 	if (!centry)
 		goto skip_save;
@@ -1694,6 +1770,9 @@ static NTSTATUS name_to_sid(struct winbindd_domain *domain,
 			    enum lsa_SidType *type)
 {
 	NTSTATUS status;
+	bool old_status;
+
+	old_status = domain->online;
 
 	status = wcache_name_to_sid(domain, domain_name, name, sid, type);
 	if (!NT_STATUS_EQUAL(status, NT_STATUS_NOT_FOUND)) {
@@ -1719,6 +1798,19 @@ static NTSTATUS name_to_sid(struct winbindd_domain *domain,
 	status = domain->backend->name_to_sid(domain, mem_ctx, domain_name,
 					      name, flags, sid, type);
 
+	if (NT_STATUS_EQUAL(status, NT_STATUS_IO_TIMEOUT) ||
+		NT_STATUS_EQUAL(status, NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND)) {
+		if (!domain->internal && old_status) {
+			set_domain_offline(domain);
+		}
+		if (!domain->internal &&
+			!domain->online &&
+			old_status) {
+			NTSTATUS cache_status;
+			cache_status = wcache_name_to_sid(domain, domain_name, name, sid, type);
+			return cache_status;
+		}
+	}
 	/* and save it */
 	refresh_sequence_number(domain, false);
 
@@ -1789,7 +1881,9 @@ static NTSTATUS sid_to_name(struct winbindd_domain *domain,
 			    enum lsa_SidType *type)
 {
 	NTSTATUS status;
+	bool old_status;
 
+	old_status = domain->online;
 	status = wcache_sid_to_name(domain, sid, mem_ctx, domain_name, name,
 				    type);
 	if (!NT_STATUS_EQUAL(status, NT_STATUS_NOT_FOUND)) {
@@ -1815,8 +1909,25 @@ static NTSTATUS sid_to_name(struct winbindd_domain *domain,
 
 	status = domain->backend->sid_to_name(domain, mem_ctx, sid, domain_name, name, type);
 
+	if (NT_STATUS_EQUAL(status, NT_STATUS_IO_TIMEOUT) ||
+		NT_STATUS_EQUAL(status, NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND)) {
+		if (!domain->internal && old_status) {
+			set_domain_offline(domain);
+		}
+		if (!domain->internal &&
+			!domain->online &&
+			old_status) {
+			NTSTATUS cache_status;
+			cache_status = wcache_sid_to_name(domain, sid, mem_ctx,
+							domain_name, name, type);
+			return cache_status;
+		}
+	}
 	/* and save it */
 	refresh_sequence_number(domain, false);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
 	wcache_save_sid_to_name(domain, status, sid, *domain_name, *name, *type);
 
 	/* We can't save the name to sid mapping here, as with sid history a
@@ -1839,7 +1950,9 @@ static NTSTATUS rids_to_names(struct winbindd_domain *domain,
 	NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
 	bool have_mapped;
 	bool have_unmapped;
+	bool old_status;
 
+	old_status = domain->online;
 	*domain_name = NULL;
 	*names = NULL;
 	*types = NULL;
@@ -1924,6 +2037,73 @@ static NTSTATUS rids_to_names(struct winbindd_domain *domain,
 						rids, num_rids, domain_name,
 						names, types);
 
+	if (NT_STATUS_EQUAL(result, NT_STATUS_IO_TIMEOUT) ||
+		NT_STATUS_EQUAL(result, NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND)) {
+		if (!domain->internal && old_status) {
+			set_domain_offline(domain);
+		}
+		if (cache->tdb &&
+			!domain->internal &&
+			!domain->online &&
+			old_status) {
+			have_mapped = have_unmapped = false;
+
+			for (i=0; i<num_rids; i++) {
+				DOM_SID sid;
+				struct cache_entry *centry;
+				fstring tmp;
+
+				if (!sid_compose(&sid, domain_sid, rids[i])) {
+					result = NT_STATUS_INTERNAL_ERROR;
+					goto error;
+				}
+
+				centry = wcache_fetch(cache, domain, "SN/%s",
+						      sid_to_fstring(tmp, &sid));


-- 
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