[SCM] Samba Shared Repository - branch v3-2-stable updated - release-3-2-0pre2-121-ge4fda2d4

Karolin Seeger kseeger at samba.org
Wed Mar 19 17:01:07 GMT 2008


The branch, v3-2-stable has been updated
       via  e4fda2d44f7237f88a5fdb172d6aa008ff48b211 (commit)
       via  a19b800b736d8123214182aeee06c72b0fe7ce70 (commit)
       via  c5c907e8cf4c8f5d8f3256feea1ed7f46e131bac (commit)
       via  9aeda996e8c73d900446709a9a5680ef587b8620 (commit)
      from  8187ec8271d6e8864a5e8e734bb7e47316606e85 (commit)

http://gitweb.samba.org/?p=samba.git;a=shortlog;h=v3-2-stable


- Log -----------------------------------------------------------------
commit e4fda2d44f7237f88a5fdb172d6aa008ff48b211
Author: Volker Lendecke <vl at samba.org>
Date:   Wed Mar 19 17:04:50 2008 +0100

    Fix a warning
    (cherry picked from commit c40648ea4d7897c401a5a94703e586acfdaec13b)

commit a19b800b736d8123214182aeee06c72b0fe7ce70
Author: Volker Lendecke <vl at samba.org>
Date:   Wed Mar 19 16:09:37 2008 +0100

    Merge dd9e0bea31751 from 3-0-ctdb -- use NetSamLogonEx when possible
    
    NetSamLogonEx has the advantage that it does not use the credential chain
    (cherry picked from commit cfceb063f559f8549b8f24ce347be213c89303b0)

commit c5c907e8cf4c8f5d8f3256feea1ed7f46e131bac
Author: Volker Lendecke <vl at samba.org>
Date:   Wed Mar 19 16:08:24 2008 +0100

    Fix some "nexted extern" warnins
    (cherry picked from commit 32fc759d942abb36d7dd351eff82925b6788dd28)

commit 9aeda996e8c73d900446709a9a5680ef587b8620
Author: Derrell Lipman <derrell.lipman at unwireduniverse.com>
Date:   Mon Mar 17 11:34:25 2008 -0400

    Fix use of AuthDataWithContext capability
    
    During my initial plans for, and the subsequent discussion of a more
    significant change to the API for libsmbclient, I had removed the
    AuthDataWithContext usage, in favor of a more generalized planned interface.
    When the API returned to its original state, I neglected to reinsert this
    code.
    
    Use of an authentication function with the context can be tested using
    
      examples/libsmbclient/testbrowse -C
    
    Derrell
    (cherry picked from commit 38eab68dfb2d8abe8ad00f5a86fc54c778d0d303)

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

Summary of changes:
 source/libsmb/libsmb_context.c  |    3 +-
 source/libsmb/libsmb_server.c   |   22 +++++++--
 source/rpc_parse/parse_buffer.c |    2 +-
 source/winbindd/winbindd.h      |    8 +++
 source/winbindd/winbindd_cm.c   |   10 ++++
 source/winbindd/winbindd_ndr.c  |   16 +++---
 source/winbindd/winbindd_pam.c  |   95 +++++++++++++++++++++++++++++---------
 7 files changed, 119 insertions(+), 37 deletions(-)


Changeset truncated at 500 lines:

diff --git a/source/libsmb/libsmb_context.c b/source/libsmb/libsmb_context.c
index c04f751..5869b8b 100644
--- a/source/libsmb/libsmb_context.c
+++ b/source/libsmb/libsmb_context.c
@@ -422,7 +422,8 @@ smbc_init_context(SMBCCTX *context)
                 return NULL;
         }
         
-        if (!smbc_getFunctionAuthData(context) ||
+        if ((!smbc_getFunctionAuthData(context) &&
+             !smbc_getFunctionAuthDataWithContext(context)) ||
             smbc_getDebug(context) < 0 ||
             smbc_getDebug(context) > 100) {
                 
diff --git a/source/libsmb/libsmb_server.c b/source/libsmb/libsmb_server.c
index 37612c6..7af5ca3 100644
--- a/source/libsmb/libsmb_server.c
+++ b/source/libsmb/libsmb_server.c
@@ -101,15 +101,29 @@ SMBC_call_auth_fn(TALLOC_CTX *ctx,
 	fstring workgroup;
 	fstring username;
 	fstring password;
+        smbc_get_auth_data_with_context_fn auth_with_context_fn;
         
 	strlcpy(workgroup, *pp_workgroup, sizeof(workgroup));
 	strlcpy(username, *pp_username, sizeof(username));
 	strlcpy(password, *pp_password, sizeof(password));
         
-        smbc_getFunctionAuthData(context)(server, share,
-                                          workgroup, sizeof(workgroup),
-                                          username, sizeof(username),
-                                          password, sizeof(password));
+        /* See if there's an authentication with context function provided */
+        auth_with_context_fn = smbc_getFunctionAuthDataWithContext(context);
+        if (auth_with_context_fn)
+        {
+            (* auth_with_context_fn)(context,
+                                     server, share,
+                                     workgroup, sizeof(workgroup),
+                                     username, sizeof(username),
+                                     password, sizeof(password));
+        }
+        else
+        {
+            smbc_getFunctionAuthData(context)(server, share,
+                                              workgroup, sizeof(workgroup),
+                                              username, sizeof(username),
+                                              password, sizeof(password));
+        }
         
 	TALLOC_FREE(*pp_workgroup);
 	TALLOC_FREE(*pp_username);
diff --git a/source/rpc_parse/parse_buffer.c b/source/rpc_parse/parse_buffer.c
index 9a68e54..bb39a58 100644
--- a/source/rpc_parse/parse_buffer.c
+++ b/source/rpc_parse/parse_buffer.c
@@ -37,7 +37,7 @@ void rpcbuf_init(RPC_BUFFER *buffer, uint32 size, TALLOC_CTX *ctx)
 	if (prs_init(&buffer->prs, size, ctx, MARSHALL))
 		buffer->struct_start = prs_offset(&buffer->prs);
 	else
-		buffer->struct_start = NULL;
+		buffer->struct_start = 0;
 }
 
 /*******************************************************************
diff --git a/source/winbindd/winbindd.h b/source/winbindd/winbindd.h
index b812d69..0840e58 100644
--- a/source/winbindd/winbindd.h
+++ b/source/winbindd/winbindd.h
@@ -176,6 +176,14 @@ struct winbindd_domain {
 	time_t startup_time;		       /* When we set "startup" true. */
 	bool startup;                          /* are we in the first 30 seconds after startup_time ? */
 
+	bool can_do_samlogon_ex; /* Due to the lack of finer control what type
+				  * of DC we have, let us try to do a
+				  * credential-chain less samlogon_ex call
+				  * with AD and schannel. If this fails with
+				  * DCERPC_FAULT_OP_RNG_ERROR, then set this
+				  * to False. This variable is around so that
+				  * we don't have to try _ex every time. */
+
 	/* Lookup methods for this domain (LDAP or RPC) */
 	struct winbindd_methods *methods;
 
diff --git a/source/winbindd/winbindd_cm.c b/source/winbindd/winbindd_cm.c
index 072b4ee..c715ac0 100644
--- a/source/winbindd/winbindd_cm.c
+++ b/source/winbindd/winbindd_cm.c
@@ -2403,6 +2403,11 @@ NTSTATUS cm_connect_netlogon(struct winbindd_domain *domain,
  no_schannel:
 	if ((lp_client_schannel() == False) ||
 			((neg_flags & NETLOGON_NEG_SCHANNEL) == 0)) {
+		/*
+		 * NetSamLogonEx only works for schannel
+		 */
+		domain->can_do_samlogon_ex = False;
+
 		/* We're done - just keep the existing connection to NETLOGON
 		 * open */
 		conn->netlogon_pipe = netlogon_pipe;
@@ -2434,6 +2439,11 @@ NTSTATUS cm_connect_netlogon(struct winbindd_domain *domain,
 		return !NT_STATUS_IS_OK(result) ? result : NT_STATUS_PIPE_NOT_AVAILABLE;
 	}
 
+	/*
+	 * Try NetSamLogonEx for AD domains
+	 */
+	domain->can_do_samlogon_ex = domain->active_directory;
+
 	*cli = conn->netlogon_pipe;
 	return NT_STATUS_OK;
 }
diff --git a/source/winbindd/winbindd_ndr.c b/source/winbindd/winbindd_ndr.c
index 842c915..9d1502a 100644
--- a/source/winbindd/winbindd_ndr.c
+++ b/source/winbindd/winbindd_ndr.c
@@ -70,18 +70,18 @@ void ndr_print_winbindd_cm_conn(struct ndr_print *ndr,
 /****************************************************************
 ****************************************************************/
 
+#ifdef HAVE_ADS
+extern struct winbindd_methods ads_methods;
+#endif
+extern struct winbindd_methods msrpc_methods;
+extern struct winbindd_methods passdb_methods;
+extern struct winbindd_methods reconnect_methods;
+extern struct winbindd_methods cache_methods;
+
 void ndr_print_winbindd_methods(struct ndr_print *ndr,
 				const char *name,
 				const struct winbindd_methods *r)
 {
-#ifdef HAVE_ADS
-	extern struct winbindd_methods ads_methods;
-#endif
-	extern struct winbindd_methods msrpc_methods;
-	extern struct winbindd_methods passdb_methods;
-	extern struct winbindd_methods reconnect_methods;
-	extern struct winbindd_methods cache_methods;
-
 	ndr_print_struct(ndr, name, "winbindd_methods");
 	ndr->depth++;
 
diff --git a/source/winbindd/winbindd_pam.c b/source/winbindd/winbindd_pam.c
index ef5a312..c56eb1b 100644
--- a/source/winbindd/winbindd_pam.c
+++ b/source/winbindd/winbindd_pam.c
@@ -1283,6 +1283,17 @@ NTSTATUS winbindd_dual_pam_auth_samlogon(struct winbindd_domain *domain,
 	/* check authentication loop */
 
 	do {
+		NTSTATUS (*logon_fn)(struct rpc_pipe_client *cli,
+				     TALLOC_CTX *mem_ctx,
+				     uint32 logon_parameters,
+				     const char *server,
+				     const char *username,
+				     const char *domain,
+				     const char *workstation,
+				     const uint8 chal[8],
+				     DATA_BLOB lm_response,
+				     DATA_BLOB nt_response,
+				     struct netr_SamInfo3 **info3);
 
 		ZERO_STRUCTP(my_info3);
 		retry = False;
@@ -1294,19 +1305,32 @@ NTSTATUS winbindd_dual_pam_auth_samlogon(struct winbindd_domain *domain,
 			goto done;
 		}
 
-		result = rpccli_netlogon_sam_network_logon(netlogon_pipe,
-							   state->mem_ctx,
-							   0,
-							   contact_domain->dcname, /* server name */
-							   name_user,              /* user name */
-							   name_domain,            /* target domain */
-							   global_myname(),        /* workstation */
-							   chal,
-							   lm_resp,
-							   nt_resp,
-							   &my_info3);
+		logon_fn = contact_domain->can_do_samlogon_ex
+			? rpccli_netlogon_sam_network_logon_ex
+			: rpccli_netlogon_sam_network_logon;
+
+		result = logon_fn(netlogon_pipe,
+				  state->mem_ctx,
+				  0,
+				  contact_domain->dcname, /* server name */
+				  name_user,              /* user name */
+				  name_domain,            /* target domain */
+				  global_myname(),        /* workstation */
+				  chal,
+				  lm_resp,
+				  nt_resp,
+				  &my_info3);
 		attempts += 1;
 
+		if ((NT_STATUS_V(result) == DCERPC_FAULT_OP_RNG_ERROR)
+		    && contact_domain->can_do_samlogon_ex) {
+			DEBUG(3, ("Got a DC that can not do NetSamLogonEx, "
+				  "retrying with NetSamLogon\n"));
+			contact_domain->can_do_samlogon_ex = False;
+			retry = True;
+			continue;
+		}
+
 		/* We have to try a second time as cm_connect_netlogon
 		   might not yet have noticed that the DC has killed
 		   our connection. */
@@ -1804,6 +1828,18 @@ enum winbindd_result winbindd_dual_pam_auth_crap(struct winbindd_domain *domain,
 	}
 
 	do {
+		NTSTATUS (*logon_fn)(struct rpc_pipe_client *cli,
+				     TALLOC_CTX *mem_ctx,
+				     uint32 logon_parameters,
+				     const char *server,
+				     const char *username,
+				     const char *domain,
+				     const char *workstation,
+				     const uint8 chal[8],
+				     DATA_BLOB lm_response,
+				     DATA_BLOB nt_response,
+				     struct netr_SamInfo3 **info3);
+
 		retry = False;
 
 		netlogon_pipe = NULL;
@@ -1815,18 +1851,31 @@ enum winbindd_result winbindd_dual_pam_auth_crap(struct winbindd_domain *domain,
 			goto done;
 		}
 
-		result = rpccli_netlogon_sam_network_logon(netlogon_pipe,
-							   state->mem_ctx,
-							   state->request.data.auth_crap.logon_parameters,
-							   contact_domain->dcname,
-							   name_user,
-							   name_domain, 
-									/* Bug #3248 - found by Stefan Burkei. */
-							   workstation, /* We carefully set this above so use it... */
-							   state->request.data.auth_crap.chal,
-							   lm_resp,
-							   nt_resp,
-							   &info3);
+		logon_fn = contact_domain->can_do_samlogon_ex
+			? rpccli_netlogon_sam_network_logon_ex
+			: rpccli_netlogon_sam_network_logon;
+
+		result = logon_fn(netlogon_pipe,
+				  state->mem_ctx,
+				  state->request.data.auth_crap.logon_parameters,
+				  contact_domain->dcname,
+				  name_user,
+				  name_domain, 
+				  /* Bug #3248 - found by Stefan Burkei. */
+				  workstation, /* We carefully set this above so use it... */
+				  state->request.data.auth_crap.chal,
+				  lm_resp,
+				  nt_resp,
+				  &info3);
+
+		if ((NT_STATUS_V(result) == DCERPC_FAULT_OP_RNG_ERROR)
+		    && contact_domain->can_do_samlogon_ex) {
+			DEBUG(3, ("Got a DC that can not do NetSamLogonEx, "
+				  "retrying with NetSamLogon\n"));
+			contact_domain->can_do_samlogon_ex = False;
+			retry = True;
+			continue;
+		}
 
 		attempts += 1;
 


-- 
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