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authorVolker Lendecke <vl@samba.org>2009-10-04 15:47:33 +0200
committerVolker Lendecke <vl@samba.org>2009-10-05 22:12:20 +0200
commit20a8ea91e10af167067cc794a251265aaf489e75 (patch)
tree688425cc91fd6497e43483e194f73a10f4295c63
parent3fa1d7332c19d0521b8da9f2cd8162260f0ab660 (diff)
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s3: Attempt to fix machine password change
-rw-r--r--source3/include/client.h1
-rw-r--r--source3/include/proto.h9
-rw-r--r--source3/libnet/libnet_join.c9
-rw-r--r--source3/libsmb/trusts_util.c8
-rw-r--r--source3/rpc_client/cli_netlogon.c51
-rw-r--r--source3/winbindd/winbindd_cm.c2
-rw-r--r--source3/winbindd/winbindd_dual.c42
7 files changed, 85 insertions, 37 deletions
diff --git a/source3/include/client.h b/source3/include/client.h
index 82d94b055f..ba3a4e782c 100644
--- a/source3/include/client.h
+++ b/source3/include/client.h
@@ -147,6 +147,7 @@ struct rpc_pipe_client {
/* The following is only non-null on a netlogon client pipe. */
struct netlogon_creds_CredentialState *dc;
+ uint32_t auth_neg_flags;
/* Used by internal rpc_pipe_client */
pipes_struct *pipes_struct;
diff --git a/source3/include/proto.h b/source3/include/proto.h
index c8e4fe1916..a9768ba256 100644
--- a/source3/include/proto.h
+++ b/source3/include/proto.h
@@ -5240,7 +5240,14 @@ NTSTATUS rpccli_netlogon_set_trust_password(struct rpc_pipe_client *cli,
const unsigned char orig_trust_passwd_hash[16],
const char *new_trust_pwd_cleartext,
const unsigned char new_trust_passwd_hash[16],
- uint32_t sec_channel_type);
+ uint32_t sec_channel_type,
+ uint32_t neg_flags);
+NTSTATUS rpccli_netlogon_auth_set_trust_password(struct rpc_pipe_client *cli,
+ TALLOC_CTX *mem_ctx,
+ const unsigned char orig_trust_passwd_hash[16],
+ const char *new_trust_pwd_cleartext,
+ const unsigned char new_trust_passwd_hash[16],
+ uint32_t sec_channel_type);
/* The following definitions come from rpc_client/cli_pipe.c */
diff --git a/source3/libnet/libnet_join.c b/source3/libnet/libnet_join.c
index 8c3030711b..70b28e3988 100644
--- a/source3/libnet/libnet_join.c
+++ b/source3/libnet/libnet_join.c
@@ -788,11 +788,10 @@ static NTSTATUS libnet_join_joindomain_rpc_unsecure(TALLOC_CTX *mem_ctx,
E_md4hash(trust_passwd, orig_trust_passwd_hash);
- status = rpccli_netlogon_set_trust_password(pipe_hnd, mem_ctx,
- orig_trust_passwd_hash,
- r->in.machine_password,
- new_trust_passwd_hash,
- r->in.secure_channel_type);
+ status = rpccli_netlogon_auth_set_trust_password(
+ pipe_hnd, mem_ctx, orig_trust_passwd_hash,
+ r->in.machine_password, new_trust_passwd_hash,
+ r->in.secure_channel_type);
return status;
}
diff --git a/source3/libsmb/trusts_util.c b/source3/libsmb/trusts_util.c
index adf1525812..d9b75704e3 100644
--- a/source3/libsmb/trusts_util.c
+++ b/source3/libsmb/trusts_util.c
@@ -46,11 +46,9 @@ NTSTATUS trust_pw_change_and_store_it(struct rpc_pipe_client *cli, TALLOC_CTX *m
E_md4hash(new_trust_passwd, new_trust_passwd_hash);
- nt_status = rpccli_netlogon_set_trust_password(cli, mem_ctx,
- orig_trust_passwd_hash,
- new_trust_passwd,
- new_trust_passwd_hash,
- sec_channel_type);
+ nt_status = rpccli_netlogon_auth_set_trust_password(
+ cli, mem_ctx, orig_trust_passwd_hash, new_trust_passwd,
+ new_trust_passwd_hash, sec_channel_type);
if (NT_STATUS_IS_OK(nt_status)) {
DEBUG(3,("%s : trust_pw_change_and_store_it: Changed password.\n",
diff --git a/source3/rpc_client/cli_netlogon.c b/source3/rpc_client/cli_netlogon.c
index 911a50f393..db7d1357c7 100644
--- a/source3/rpc_client/cli_netlogon.c
+++ b/source3/rpc_client/cli_netlogon.c
@@ -512,27 +512,12 @@ NTSTATUS rpccli_netlogon_set_trust_password(struct rpc_pipe_client *cli,
const unsigned char orig_trust_passwd_hash[16],
const char *new_trust_pwd_cleartext,
const unsigned char new_trust_passwd_hash[16],
- uint32_t sec_channel_type)
+ uint32_t sec_channel_type,
+ uint32_t neg_flags)
{
NTSTATUS result;
- uint32_t neg_flags = NETLOGON_NEG_AUTH2_ADS_FLAGS;
struct netr_Authenticator clnt_creds, srv_cred;
- result = rpccli_netlogon_setup_creds(cli,
- cli->desthost, /* server name */
- lp_workgroup(), /* domain */
- global_myname(), /* client name */
- global_myname(), /* machine account name */
- orig_trust_passwd_hash,
- sec_channel_type,
- &neg_flags);
-
- if (!NT_STATUS_IS_OK(result)) {
- DEBUG(3,("rpccli_netlogon_set_trust_password: unable to setup creds (%s)!\n",
- nt_errstr(result)));
- return result;
- }
-
netlogon_creds_client_authenticator(cli->dc, &clnt_creds);
if (neg_flags & NETLOGON_NEG_PASSWORD_SET2) {
@@ -586,3 +571,35 @@ NTSTATUS rpccli_netlogon_set_trust_password(struct rpc_pipe_client *cli,
return result;
}
+NTSTATUS rpccli_netlogon_auth_set_trust_password(struct rpc_pipe_client *cli,
+ TALLOC_CTX *mem_ctx,
+ const unsigned char orig_trust_passwd_hash[16],
+ const char *new_trust_pwd_cleartext,
+ const unsigned char new_trust_passwd_hash[16],
+ uint32_t sec_channel_type)
+{
+ NTSTATUS result;
+ uint32_t neg_flags = NETLOGON_NEG_AUTH2_ADS_FLAGS;
+
+ result = rpccli_netlogon_setup_creds(cli,
+ cli->desthost, /* server name */
+ lp_workgroup(), /* domain */
+ global_myname(), /* client name */
+ global_myname(), /* machine account name */
+ orig_trust_passwd_hash,
+ sec_channel_type,
+ &neg_flags);
+
+ if (!NT_STATUS_IS_OK(result)) {
+ DEBUG(3,("rpccli_netlogon_set_trust_password: unable to setup creds (%s)!\n",
+ nt_errstr(result)));
+ return result;
+ }
+
+ return rpccli_netlogon_set_trust_password(cli, mem_ctx,
+ orig_trust_passwd_hash,
+ new_trust_pwd_cleartext,
+ new_trust_passwd_hash,
+ sec_channel_type,
+ neg_flags);
+}
diff --git a/source3/winbindd/winbindd_cm.c b/source3/winbindd/winbindd_cm.c
index 9a788397a9..029a0210d1 100644
--- a/source3/winbindd/winbindd_cm.c
+++ b/source3/winbindd/winbindd_cm.c
@@ -2470,6 +2470,8 @@ NTSTATUS cm_connect_netlogon(struct winbindd_domain *domain,
return !NT_STATUS_IS_OK(result) ? result : NT_STATUS_PIPE_NOT_AVAILABLE;
}
+ conn->netlogon_pipe->auth_neg_flags = neg_flags;
+
/*
* Try NetSamLogonEx for AD domains
*/
diff --git a/source3/winbindd/winbindd_dual.c b/source3/winbindd/winbindd_dual.c
index edf784cc21..546f5f0131 100644
--- a/source3/winbindd/winbindd_dual.c
+++ b/source3/winbindd/winbindd_dual.c
@@ -30,6 +30,7 @@
#include "includes.h"
#include "winbindd.h"
#include "../../nsswitch/libwbclient/wbc_async.h"
+#include "../libcli/auth/libcli_auth.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_WINBIND
@@ -1061,9 +1062,12 @@ static void machine_password_change_handler(struct event_context *ctx,
struct winbindd_child *child =
(struct winbindd_child *)private_data;
struct rpc_pipe_client *netlogon_pipe = NULL;
- TALLOC_CTX *frame;
NTSTATUS result;
struct timeval next_change;
+ uint8_t old_trust_passwd_hash[16];
+ uint8_t new_trust_passwd_hash[16];
+ char *new_trust_passwd;
+ uint32_t sec_channel_type = 0;
DEBUG(10,("machine_password_change_handler called\n"));
@@ -1089,22 +1093,42 @@ static void machine_password_change_handler(struct event_context *ctx,
return;
}
- frame = talloc_stackframe();
+ if (!secrets_fetch_trust_account_password(
+ child->domain->name, old_trust_passwd_hash, NULL,
+ &sec_channel_type)) {
+ DEBUG(0, ("could not fetch domain secrets for domain %s!\n",
+ child->domain->name));
+ return;
+ }
+
+ new_trust_passwd = generate_random_str(
+ talloc_tos(), DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
+ if (new_trust_passwd == NULL) {
+ DEBUG(0, ("talloc_strdup failed\n"));
+ return;
+ }
- result = trust_pw_find_change_and_store_it(netlogon_pipe,
- frame,
- child->domain->name);
- TALLOC_FREE(frame);
+ E_md4hash(new_trust_passwd, new_trust_passwd_hash);
+
+ result = rpccli_netlogon_set_trust_password(
+ netlogon_pipe, talloc_tos(), old_trust_passwd_hash,
+ new_trust_passwd, new_trust_passwd_hash, sec_channel_type,
+ netlogon_pipe->auth_neg_flags);
if (!NT_STATUS_IS_OK(result)) {
DEBUG(10,("machine_password_change_handler: "
"failed to change machine password: %s\n",
nt_errstr(result)));
- } else {
- DEBUG(10,("machine_password_change_handler: "
- "successfully changed machine password\n"));
+ /*
+ * Don't try a second time, this will very likely also
+ * fail.
+ */
+ return;
}
+ DEBUG(3,("machine_password_change_handler: Changed password at %s.\n",
+ current_timestring(debug_ctx(), False)));
+
child->machine_password_change_event = event_add_timed(winbind_event_context(), NULL,
next_change,
machine_password_change_handler,