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authorGünther Deschner <gd@samba.org>2010-05-28 14:22:08 +0200
committerGünther Deschner <gd@samba.org>2010-05-31 15:31:00 +0200
commit4bb7e91cfd9071e570c56bca36d35202d01ca80d (patch)
tree1c5c7ed56177b02b17ffbc0395b19a0d5f113fef /source3/rpc_server
parentdb5730cac4d6e0b64913bce21147352344077e2b (diff)
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s3-netlogon: use SAMR in _netr_ServerAuthenticate3.
Guenther
Diffstat (limited to 'source3/rpc_server')
-rw-r--r--source3/rpc_server/srv_netlog_nt.c106
1 files changed, 73 insertions, 33 deletions
diff --git a/source3/rpc_server/srv_netlog_nt.c b/source3/rpc_server/srv_netlog_nt.c
index 51158396d3..3ff36c9c51 100644
--- a/source3/rpc_server/srv_netlog_nt.c
+++ b/source3/rpc_server/srv_netlog_nt.c
@@ -545,11 +545,15 @@ static NTSTATUS samr_find_machine_account(TALLOC_CTX *mem_ctx,
static NTSTATUS get_md4pw(struct samr_Password *md4pw, const char *mach_acct,
enum netr_SchannelType sec_chan_type, struct dom_sid *sid)
{
- struct samu *sampass = NULL;
- const uint8 *pass;
- bool ret;
- uint32 acct_ctrl;
-
+ NTSTATUS status;
+ TALLOC_CTX *mem_ctx;
+ struct rpc_pipe_client *cli = NULL;
+ struct policy_handle user_handle;
+ uint32_t user_rid;
+ struct dom_sid *domain_sid;
+ uint32_t acct_ctrl;
+ union samr_UserInfo *info;
+ struct auth_serversupplied_info *server_info;
#if 0
char addr[INET6_ADDRSTRLEN];
@@ -570,26 +574,50 @@ static NTSTATUS get_md4pw(struct samr_Password *md4pw, const char *mach_acct,
}
#endif /* 0 */
- if ( !(sampass = samu_new( NULL )) ) {
- return NT_STATUS_NO_MEMORY;
+ mem_ctx = talloc_new(talloc_tos());
+ if (mem_ctx == NULL) {
+ status = NT_STATUS_NO_MEMORY;
+ goto out;
+ }
+
+ status = make_server_info_system(mem_ctx, &server_info);
+ if (!NT_STATUS_IS_OK(status)) {
+ goto out;
+ }
+
+ ZERO_STRUCT(user_handle);
+
+ status = rpc_pipe_open_internal(mem_ctx, &ndr_table_samr.syntax_id,
+ rpc_samr_dispatch, server_info,
+ &cli);
+ if (!NT_STATUS_IS_OK(status)) {
+ goto out;
}
- /* JRA. This is ok as it is only used for generating the challenge. */
become_root();
- ret = pdb_getsampwnam(sampass, mach_acct);
+ status = samr_find_machine_account(mem_ctx, cli, mach_acct,
+ SEC_FLAG_MAXIMUM_ALLOWED,
+ &domain_sid, &user_rid,
+ &user_handle);
unbecome_root();
+ if (!NT_STATUS_IS_OK(status)) {
+ goto out;
+ }
- if (!ret) {
- DEBUG(0,("get_md4pw: Workstation %s: no account in domain\n", mach_acct));
- TALLOC_FREE(sampass);
- return NT_STATUS_ACCESS_DENIED;
+ status = rpccli_samr_QueryUserInfo2(cli, mem_ctx,
+ &user_handle,
+ UserControlInformation,
+ &info);
+ if (!NT_STATUS_IS_OK(status)) {
+ goto out;
}
- acct_ctrl = pdb_get_acct_ctrl(sampass);
+ acct_ctrl = info->info16.acct_flags;
+
if (acct_ctrl & ACB_DISABLED) {
DEBUG(0,("get_md4pw: Workstation %s: account is disabled\n", mach_acct));
- TALLOC_FREE(sampass);
- return NT_STATUS_ACCOUNT_DISABLED;
+ status = NT_STATUS_ACCOUNT_DISABLED;
+ goto out;
}
if (!(acct_ctrl & ACB_SVRTRUST) &&
@@ -597,8 +625,8 @@ static NTSTATUS get_md4pw(struct samr_Password *md4pw, const char *mach_acct,
!(acct_ctrl & ACB_DOMTRUST))
{
DEBUG(0,("get_md4pw: Workstation %s: account is not a trust account\n", mach_acct));
- TALLOC_FREE(sampass);
- return NT_STATUS_NO_TRUST_SAM_ACCOUNT;
+ status = NT_STATUS_NO_TRUST_SAM_ACCOUNT;
+ goto out;
}
switch (sec_chan_type) {
@@ -606,46 +634,58 @@ static NTSTATUS get_md4pw(struct samr_Password *md4pw, const char *mach_acct,
if (!(acct_ctrl & ACB_SVRTRUST)) {
DEBUG(0,("get_md4pw: Workstation %s: BDC secure channel requested "
"but not a server trust account\n", mach_acct));
- TALLOC_FREE(sampass);
- return NT_STATUS_NO_TRUST_SAM_ACCOUNT;
+ status = NT_STATUS_NO_TRUST_SAM_ACCOUNT;
+ goto out;
}
break;
case SEC_CHAN_WKSTA:
if (!(acct_ctrl & ACB_WSTRUST)) {
DEBUG(0,("get_md4pw: Workstation %s: WORKSTATION secure channel requested "
"but not a workstation trust account\n", mach_acct));
- TALLOC_FREE(sampass);
- return NT_STATUS_NO_TRUST_SAM_ACCOUNT;
+ status = NT_STATUS_NO_TRUST_SAM_ACCOUNT;
+ goto out;
}
break;
case SEC_CHAN_DOMAIN:
if (!(acct_ctrl & ACB_DOMTRUST)) {
DEBUG(0,("get_md4pw: Workstation %s: DOMAIN secure channel requested "
"but not a interdomain trust account\n", mach_acct));
- TALLOC_FREE(sampass);
- return NT_STATUS_NO_TRUST_SAM_ACCOUNT;
+ status = NT_STATUS_NO_TRUST_SAM_ACCOUNT;
+ goto out;
}
break;
default:
break;
}
- if ((pass = pdb_get_nt_passwd(sampass)) == NULL) {
+ become_root();
+ status = rpccli_samr_QueryUserInfo2(cli, mem_ctx,
+ &user_handle,
+ UserInternal1Information,
+ &info);
+ unbecome_root();
+ if (!NT_STATUS_IS_OK(status)) {
+ goto out;
+ }
+ if (info->info18.nt_pwd_active == 0) {
DEBUG(0,("get_md4pw: Workstation %s: account does not have a password\n", mach_acct));
- TALLOC_FREE(sampass);
- return NT_STATUS_LOGON_FAILURE;
+ status = NT_STATUS_LOGON_FAILURE;
+ goto out;
}
- memcpy(md4pw->hash, pass, 16);
- dump_data(5, md4pw->hash, 16);
+ /* samr gives out nthash unencrypted (!) */
+ memcpy(md4pw->hash, info->info18.nt_pwd.hash, 16);
- sid_copy(sid, pdb_get_user_sid(sampass));
+ sid_compose(sid, domain_sid, user_rid);
- TALLOC_FREE(sampass);
-
- return NT_STATUS_OK;
+ out:
+ if (cli && is_valid_policy_hnd(&user_handle)) {
+ rpccli_samr_Close(cli, mem_ctx, &user_handle);
+ }
+ talloc_free(mem_ctx);
+ return status;
}
/*************************************************************************