#include "winbindd.h"
#include "../libcli/auth/libcli_auth.h"
#include "../librpc/gen_ndr/ndr_samr_c.h"
+#include "rpc_client/cli_pipe.h"
#include "rpc_client/cli_samr.h"
#include "../librpc/gen_ndr/ndr_netlogon.h"
#include "rpc_client/cli_netlogon.h"
#include "../libcli/security/security.h"
#include "ads.h"
#include "../librpc/gen_ndr/krb5pac.h"
+#include "passdb/machine_sid.h"
+#include "auth.h"
+#include "../lib/tsocket/tsocket.h"
+#include "auth/kerberos/pac_utils.h"
+#include "auth/gensec/gensec.h"
+#include "librpc/crypto/gse_krb5.h"
+#include "lib/afs/afs_funcs.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_WINBIND
uint32_t i;
resp->data.auth.info3.logon_time =
- nt_time_to_unix(info3->base.last_logon);
+ nt_time_to_unix(info3->base.logon_time);
resp->data.auth.info3.logoff_time =
- nt_time_to_unix(info3->base.last_logoff);
+ nt_time_to_unix(info3->base.logoff_time);
resp->data.auth.info3.kickoff_time =
- nt_time_to_unix(info3->base.acct_expiry);
+ nt_time_to_unix(info3->base.kickoff_time);
resp->data.auth.info3.pass_last_set_time =
nt_time_to_unix(info3->base.last_password_change);
resp->data.auth.info3.pass_can_change_time =
fstrcpy(resp->data.auth.info3.logon_srv,
info3->base.logon_server.string);
fstrcpy(resp->data.auth.info3.logon_dom,
- info3->base.domain.string);
+ info3->base.logon_domain.string);
ex = talloc_strdup(mem_ctx, "");
NT_STATUS_HAVE_NO_MEMORY(ex);
const char *nt_username, *nt_domain;
- nt_domain = talloc_strdup(mem_ctx, info3->base.domain.string);
+ nt_domain = talloc_strdup(mem_ctx, info3->base.logon_domain.string);
if (!nt_domain) {
/* If the server didn't give us one, just use the one
* we sent them */
return NT_STATUS_NO_MEMORY;
}
- strlower_m(afsname);
+ if (!strlower_m(afsname)) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
DEBUG(10, ("Generating token for user %s\n", afsname));
if (!group_sid || !group_sid[0]) {
/* NO sid supplied, all users may access */
+ TALLOC_FREE(frame);
return NT_STATUS_OK;
}
status = sid_array_from_info3(talloc_tos(), info3,
&token->sids,
&token->num_sids,
- true, false);
+ true);
if (!NT_STATUS_IS_OK(status)) {
TALLOC_FREE(frame);
return status;
r->data.auth.policy.password_properties =
p->password_properties;
r->data.auth.policy.expire =
- nt_time_to_unix_abs((NTTIME *)&(p->max_password_age));
+ nt_time_to_unix_abs((const NTTIME *)&(p->max_password_age));
r->data.auth.policy.min_passwordage =
- nt_time_to_unix_abs((NTTIME *)&(p->min_password_age));
+ nt_time_to_unix_abs((const NTTIME *)&(p->min_password_age));
}
static NTSTATUS fillup_password_policy(struct winbindd_domain *domain,
static NTSTATUS get_max_bad_attempts_from_lockout_policy(struct winbindd_domain *domain,
TALLOC_CTX *mem_ctx,
- uint16 *lockout_threshold)
+ uint16_t *lockout_threshold)
{
struct winbindd_methods *methods;
NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
static NTSTATUS get_pwd_properties(struct winbindd_domain *domain,
TALLOC_CTX *mem_ctx,
- uint32 *password_properties)
+ uint32_t *password_properties)
{
struct winbindd_methods *methods;
NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
gen_cc = talloc_asprintf(
mem_ctx, "WRFILE:/tmp/krb5cc_%d", uid);
}
+ if (strequal(type, "KEYRING")) {
+ gen_cc = talloc_asprintf(
+ mem_ctx, "KEYRING:persistent:%d", uid);
+ }
+
+ if (strnequal(type, "FILE:/", 6) ||
+ strnequal(type, "WRFILE:/", 8) ||
+ strnequal(type, "DIR:/", 5)) {
+
+ /* we allow only one "%u" substitution */
+
+ char *p;
+
+ p = strchr(type, '%');
+ if (p != NULL) {
+
+ p++;
+
+ if (p != NULL && *p == 'u' && strchr(p, '%') == NULL) {
+ char uid_str[sizeof("18446744073709551615")];
+
+ snprintf(uid_str, sizeof(uid_str), "%u", uid);
+
+ gen_cc = talloc_string_sub2(mem_ctx,
+ type,
+ "%u",
+ uid_str,
+ /* remove_unsafe_characters */
+ false,
+ /* replace_once */
+ true,
+ /* allow_trailing_dollar */
+ false);
+ }
+ }
+ }
}
*user_ccache_file = gen_cc;
time_t time_offset = 0;
const char *user_ccache_file;
struct PAC_LOGON_INFO *logon_info = NULL;
+ struct PAC_DATA *pac_data = NULL;
+ struct PAC_DATA_CTR *pac_data_ctr = NULL;
+ const char *local_service;
+ int i;
+ struct netr_SamInfo3 *info3_copy = NULL;
*info3 = NULL;
+ if (domain->alt_name == NULL) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
/* 1st step:
* prepare a krb5_cc_cache string for the user */
parse_domain_user(user, name_domain, name_user);
- realm = domain->alt_name;
- strupper_m(realm);
+ realm = talloc_strdup(mem_ctx, domain->alt_name);
+ if (realm == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ if (!strupper_m(realm)) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
principal_s = talloc_asprintf(mem_ctx, "%s@%s", name_user, realm);
if (principal_s == NULL) {
return NT_STATUS_NO_MEMORY;
}
+ local_service = talloc_asprintf(mem_ctx, "%s$@%s",
+ lp_netbios_name(), lp_realm());
+ if (local_service == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+
/* if this is a user ccache, we need to act as the user to let the krb5
* library handle the chown, etc. */
true,
WINBINDD_PAM_AUTH_KRB5_RENEW_TIME,
NULL,
- &logon_info);
+ local_service,
+ &pac_data_ctr);
if (user_ccache_file != NULL) {
gain_root_privilege();
}
goto failed;
}
- *info3 = &logon_info->info3;
+ if (pac_data_ctr == NULL) {
+ goto failed;
+ }
+
+ pac_data = pac_data_ctr->pac_data;
+ if (pac_data == NULL) {
+ goto failed;
+ }
+
+ for (i=0; i < pac_data->num_buffers; i++) {
+
+ if (pac_data->buffers[i].type != PAC_TYPE_LOGON_INFO) {
+ continue;
+ }
+
+ logon_info = pac_data->buffers[i].info->logon_info.info;
+ if (!logon_info) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ break;
+ }
+
+ if (logon_info == NULL) {
+ DEBUG(10,("Missing logon_info in ticket of %s\n",
+ principal_s));
+ return NT_STATUS_INVALID_PARAMETER;
+ }
DEBUG(10,("winbindd_raw_kerberos_login: winbindd validated ticket of %s\n",
principal_s));
+ result = create_info3_from_pac_logon_info(mem_ctx, logon_info, &info3_copy);
+ if (!NT_STATUS_IS_OK(result)) {
+ goto failed;
+ }
+
/* if we had a user's ccache then return that string for the pam
* environment */
cc,
service,
user,
+ pass,
realm,
uid,
time(NULL),
}
}
-
+ *info3 = info3_copy;
return NT_STATUS_OK;
failed:
+ /*
+ * Do not delete an existing valid credential cache, if the user
+ * e.g. enters a wrong password
+ */
+ if ((strequal(krb5_cc_type, "FILE") || strequal(krb5_cc_type, "WRFILE"))
+ && user_ccache_file != NULL) {
+ return result;
+ }
/* we could have created a new credential cache with a valid tgt in it
* but we werent able to get or verify the service ticket for this
/****************************************************************
****************************************************************/
-static NTSTATUS append_auth_data(TALLOC_CTX *mem_ctx,
- struct winbindd_response *resp,
- uint32_t request_flags,
- struct netr_SamInfo3 *info3,
- const char *name_domain,
- const char *name_user)
+NTSTATUS append_auth_data(TALLOC_CTX *mem_ctx,
+ struct winbindd_response *resp,
+ uint32_t request_flags,
+ struct netr_SamInfo3 *info3,
+ const char *name_domain,
+ const char *name_user)
{
NTSTATUS result;
struct netr_SamInfo3 **info3)
{
NTSTATUS result = NT_STATUS_LOGON_FAILURE;
- uint16 max_allowed_bad_attempts;
+ uint16_t max_allowed_bad_attempts;
fstring name_domain, name_user;
struct dom_sid sid;
enum lsa_SidType type;
uchar new_nt_pass[NT_HASH_LEN];
- const uint8 *cached_nt_pass;
- const uint8 *cached_salt;
+ const uint8_t *cached_nt_pass;
+ const uint8_t *cached_salt;
struct netr_SamInfo3 *my_info3;
time_t kickoff_time, must_change_time;
bool password_good = false;
return NT_STATUS_LOGON_FAILURE;
}
- kickoff_time = nt_time_to_unix(my_info3->base.acct_expiry);
+ kickoff_time = nt_time_to_unix(my_info3->base.kickoff_time);
if (kickoff_time != 0 && time(NULL) > kickoff_time) {
return NT_STATUS_ACCOUNT_EXPIRED;
}
#ifdef HAVE_KRB5
if ((state->request->flags & WBFLAG_PAM_KRB5) &&
((tdc_domain = wcache_tdc_fetch_domain(state->mem_ctx, name_domain)) != NULL) &&
- ((tdc_domain->trust_type & NETR_TRUST_TYPE_UPLEVEL) ||
+ ((tdc_domain->trust_type & LSA_TRUST_TYPE_UPLEVEL) ||
/* used to cope with the case winbindd starting without network. */
!strequal(tdc_domain->domain_name, tdc_domain->dns_name))) {
const char *service = NULL;
const char *user_ccache_file;
+ if (domain->alt_name == NULL) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
uid = get_uid_from_request(state->request);
if (uid == -1) {
DEBUG(0,("winbindd_dual_pam_auth_cached: invalid uid\n"));
return NT_STATUS_NO_MEMORY;
}
- realm = domain->alt_name;
- strupper_m(realm);
+ realm = talloc_strdup(state->mem_ctx, domain->alt_name);
+ if (realm == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ if (!strupper_m(realm)) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
principal_s = talloc_asprintf(state->mem_ctx, "%s@%s", name_user, realm);
if (principal_s == NULL) {
cc,
service,
state->request->data.auth.user,
- domain->alt_name,
+ state->request->data.auth.pass,
+ realm,
uid,
time(NULL),
time(NULL) + lp_winbind_cache_time(),
/* FIXME: we possibly should handle logon hours as well (does xp when
* offline?) see auth/auth_sam.c:sam_account_ok for details */
- unix_to_nt_time(&my_info3->base.last_logon, time(NULL));
+ unix_to_nt_time(&my_info3->base.logon_time, time(NULL));
my_info3->base.bad_password_count = 0;
result = winbindd_update_creds_by_info3(domain,
}
- /* User does *NOT* know the correct password, modify info3 accordingly */
+ /* User does *NOT* know the correct password, modify info3 accordingly, but only if online */
+ if (domain->online == false) {
+ goto failed;
+ }
/* failure of this is not critical */
result = get_max_bad_attempts_from_lockout_policy(domain, state->mem_ctx, &max_allowed_bad_attempts);
/* lockout user */
if (my_info3->base.bad_password_count >= max_allowed_bad_attempts) {
- uint32 password_properties;
+ uint32_t password_properties;
result = get_pwd_properties(domain, state->mem_ctx, &password_properties);
if (!NT_STATUS_IS_OK(result)) {
DEBUG(3, ("Authentication for domain for [%s] -> [%s]\\[%s] failed as %s is not a trusted domain\n",
state->request->data.auth.user, name_domain, name_user, name_domain));
- contact_domain = find_our_domain();
+ result = NT_STATUS_NO_SUCH_USER;
+ goto done;
}
}
}
if (!contact_domain->initialized) {
- init_dc_connection(contact_domain);
+ init_dc_connection(contact_domain, false);
}
if (!contact_domain->active_directory) {
}
static NTSTATUS winbindd_dual_auth_passdb(TALLOC_CTX *mem_ctx,
+ uint32_t logon_parameters,
const char *domain, const char *user,
const DATA_BLOB *challenge,
const DATA_BLOB *lm_resp,
const DATA_BLOB *nt_resp,
struct netr_SamInfo3 **pinfo3)
{
+ struct auth_context *auth_context;
+ struct auth_serversupplied_info *server_info;
struct auth_usersupplied_info *user_info = NULL;
+ struct tsocket_address *local;
+ struct netr_SamInfo3 *info3;
NTSTATUS status;
+ int rc;
+ TALLOC_CTX *frame = talloc_stackframe();
- status = make_user_info(&user_info, user, user, domain, domain,
- global_myname(), lm_resp, nt_resp, NULL, NULL,
+ rc = tsocket_address_inet_from_strings(frame,
+ "ip",
+ "127.0.0.1",
+ 0,
+ &local);
+ if (rc < 0) {
+ TALLOC_FREE(frame);
+ return NT_STATUS_NO_MEMORY;
+ }
+ status = make_user_info(frame, &user_info, user, user, domain, domain,
+ lp_netbios_name(), local, lm_resp, nt_resp, NULL, NULL,
NULL, AUTH_PASSWORD_RESPONSE);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(10, ("make_user_info failed: %s\n", nt_errstr(status)));
+ TALLOC_FREE(frame);
return status;
}
+ user_info->logon_parameters = logon_parameters;
+
/* We don't want any more mapping of the username */
user_info->mapped_state = True;
- status = check_sam_security_info3(challenge, talloc_tos(), user_info,
- pinfo3);
- free_user_info(&user_info);
+ /* We don't want to come back to winbindd or to do PAM account checks */
+ user_info->flags |= USER_INFO_LOCAL_SAM_ONLY | USER_INFO_INFO3_AND_NO_AUTHZ;
+
+ status = make_auth_context_fixed(frame, &auth_context, challenge->data);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("Failed to test authentication with check_sam_security_info3: %s\n", nt_errstr(status)));
+ TALLOC_FREE(frame);
+ return status;
+ }
+
+ status = auth_check_ntlm_password(mem_ctx,
+ auth_context,
+ user_info,
+ &server_info);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ TALLOC_FREE(frame);
+ return status;
+ }
+
+ info3 = talloc_zero(mem_ctx, struct netr_SamInfo3);
+ if (info3 == NULL) {
+ TALLOC_FREE(frame);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ status = serverinfo_to_SamInfo3(server_info, info3);
+ if (!NT_STATUS_IS_OK(status)) {
+ TALLOC_FREE(frame);
+ TALLOC_FREE(info3);
+ DEBUG(0, ("serverinfo_to_SamInfo3 failed: %s\n",
+ nt_errstr(status)));
+ return status;
+ }
+
+ *pinfo3 = info3;
DEBUG(10, ("Authenticaticating user %s\\%s returned %s\n", domain,
user, nt_errstr(status)));
+ TALLOC_FREE(frame);
return status;
}
static NTSTATUS winbind_samlogon_retry_loop(struct winbindd_domain *domain,
TALLOC_CTX *mem_ctx,
uint32_t logon_parameters,
- const char *server,
const char *username,
+ const char *password,
const char *domainname,
const char *workstation,
const uint8_t chal[8],
DATA_BLOB lm_response,
DATA_BLOB nt_response,
+ bool interactive,
struct netr_SamInfo3 **info3)
{
int attempts = 0;
+ int netr_attempts = 0;
bool retry = false;
NTSTATUS result;
do {
struct rpc_pipe_client *netlogon_pipe;
- const struct pipe_auth_data *auth;
- uint32_t neg_flags = 0;
+ uint8_t authoritative = 0;
+ uint32_t flags = 0;
ZERO_STRUCTP(info3);
retry = false;
result = cm_connect_netlogon(domain, &netlogon_pipe);
if (!NT_STATUS_IS_OK(result)) {
- DEBUG(3,("could not open handle to NETLOGON pipe (error: %s)\n",
- nt_errstr(result)));
+ DEBUG(3,("Could not open handle to NETLOGON pipe "
+ "(error: %s, attempts: %d)\n",
+ nt_errstr(result), netr_attempts));
+
+ /* After the first retry always close the connection */
+ if (netr_attempts > 0) {
+ DEBUG(3, ("This is again a problem for this "
+ "particular call, forcing the close "
+ "of this connection\n"));
+ invalidate_cm_connection(domain);
+ }
+
+ /* After the second retry failover to the next DC */
+ if (netr_attempts > 1) {
+ /*
+ * If the netlogon server is not reachable then
+ * it is possible that the DC is rebuilding
+ * sysvol and shutdown netlogon for that time.
+ * We should failover to the next dc.
+ */
+ DEBUG(3, ("This is the third problem for this "
+ "particular call, adding DC to the "
+ "negative cache list\n"));
+ add_failed_connection_entry(domain->name,
+ domain->dcname,
+ result);
+ saf_delete(domain->name);
+ }
+
+ /* Only allow 3 retries */
+ if (netr_attempts < 3) {
+ DEBUG(3, ("The connection to netlogon "
+ "failed, retrying\n"));
+ netr_attempts++;
+ retry = true;
+ continue;
+ }
return result;
}
- auth = netlogon_pipe->auth;
- if (netlogon_pipe->dc) {
- neg_flags = netlogon_pipe->dc->negotiate_flags;
- }
-
- /* It is really important to try SamLogonEx here,
- * because in a clustered environment, we want to use
- * one machine account from multiple physical
- * computers.
- *
- * With a normal SamLogon call, we must keep the
- * credentials chain updated and intact between all
- * users of the machine account (which would imply
- * cross-node communication for every NTLM logon).
- *
- * (The credentials chain is not per NETLOGON pipe
- * connection, but globally on the server/client pair
- * by machine name).
- *
- * When using SamLogonEx, the credentials are not
- * supplied, but the session key is implied by the
- * wrapping SamLogon context.
- *
- * -- abartlet 21 April 2008
- *
- * It's also important to use NetlogonValidationSamInfo4 (6),
- * because it relies on the rpc transport encryption
- * and avoids using the global netlogon schannel
- * session key to en/decrypt secret information
- * like the user_session_key for network logons.
- *
- * [MS-APDS] 3.1.5.2 NTLM Network Logon
- * says NETLOGON_NEG_CROSS_FOREST_TRUSTS and
- * NETLOGON_NEG_AUTHENTICATED_RPC set together
- * are the indication that the server supports
- * NetlogonValidationSamInfo4 (6). And it must only
- * be used if "SealSecureChannel" is used.
- *
- * -- metze 4 February 2011
- */
-
- if (auth == NULL) {
- domain->can_do_validation6 = false;
- } else if (auth->auth_type != DCERPC_AUTH_TYPE_SCHANNEL) {
- domain->can_do_validation6 = false;
- } else if (auth->auth_level != DCERPC_AUTH_LEVEL_PRIVACY) {
- domain->can_do_validation6 = false;
- } else if (!(neg_flags & NETLOGON_NEG_CROSS_FOREST_TRUSTS)) {
- domain->can_do_validation6 = false;
- } else if (!(neg_flags & NETLOGON_NEG_AUTHENTICATED_RPC)) {
- domain->can_do_validation6 = false;
- }
-
- if (domain->can_do_samlogon_ex) {
- result = rpccli_netlogon_sam_network_logon_ex(
- netlogon_pipe,
- mem_ctx,
- 0,
- server, /* server name */
- username, /* user name */
- domainname, /* target domain */
- workstation, /* workstation */
- chal,
- domain->can_do_validation6 ? 6 : 3,
- lm_response,
- nt_response,
- info3);
+ netr_attempts = 0;
+ if (domain->conn.netlogon_creds == NULL) {
+ DBG_NOTICE("No security credentials available for "
+ "domain [%s]\n", domainname);
+ result = NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
+ } else if (interactive && username != NULL && password != NULL) {
+ result = rpccli_netlogon_password_logon(domain->conn.netlogon_creds,
+ netlogon_pipe->binding_handle,
+ mem_ctx,
+ logon_parameters,
+ domainname,
+ username,
+ password,
+ workstation,
+ NetlogonInteractiveInformation,
+ info3);
} else {
- result = rpccli_netlogon_sam_network_logon(
- netlogon_pipe,
- mem_ctx,
- 0,
- server, /* server name */
- username, /* user name */
- domainname, /* target domain */
- workstation, /* workstation */
- chal,
- domain->can_do_validation6 ? 6 : 3,
- lm_response,
- nt_response,
- info3);
- }
-
- if ((NT_STATUS_V(result) == DCERPC_FAULT_OP_RNG_ERROR)
- && domain->can_do_samlogon_ex) {
- DEBUG(3, ("Got a DC that can not do NetSamLogonEx, "
- "retrying with NetSamLogon\n"));
- domain->can_do_samlogon_ex = false;
- /*
- * It's likely that the server also does not support
- * validation level 6
- */
- domain->can_do_validation6 = false;
- retry = true;
- continue;
- }
-
- if (domain->can_do_validation6 &&
- (NT_STATUS_EQUAL(result, NT_STATUS_INVALID_INFO_CLASS) ||
- NT_STATUS_EQUAL(result, NT_STATUS_INVALID_PARAMETER) ||
- NT_STATUS_EQUAL(result, NT_STATUS_BUFFER_TOO_SMALL))) {
- DEBUG(3,("Got a DC that can not do validation level 6, "
- "retrying with level 3\n"));
- domain->can_do_validation6 = false;
- retry = true;
- continue;
+ result = rpccli_netlogon_network_logon(domain->conn.netlogon_creds,
+ netlogon_pipe->binding_handle,
+ mem_ctx,
+ logon_parameters,
+ username,
+ domainname,
+ workstation,
+ chal,
+ lm_response,
+ nt_response,
+ &authoritative,
+ &flags,
+ info3);
}
/*
rpc changetrustpw' */
if ( NT_STATUS_EQUAL(result, NT_STATUS_ACCESS_DENIED) ) {
- DEBUG(3,("winbindd_pam_auth: sam_logon returned "
- "ACCESS_DENIED. Maybe the trust account "
+ DEBUG(1,("winbind_samlogon_retry_loop: sam_logon returned "
+ "ACCESS_DENIED. Maybe the DC has Restrict "
+ "NTLM set or the trust account "
"password was changed and we didn't know it. "
"Killing connections to domain %s\n",
domainname));
- invalidate_cm_connection(&domain->conn);
+ invalidate_cm_connection(domain);
retry = true;
}
+ if (NT_STATUS_EQUAL(result, NT_STATUS_RPC_PROCNUM_OUT_OF_RANGE)) {
+ /*
+ * Got DCERPC_FAULT_OP_RNG_ERROR for SamLogon
+ * (no Ex). This happens against old Samba
+ * DCs, if LogonSamLogonEx() fails with an error
+ * e.g. NT_STATUS_NO_SUCH_USER or NT_STATUS_WRONG_PASSWORD.
+ *
+ * The server will log something like this:
+ * api_net_sam_logon_ex: Failed to marshall NET_R_SAM_LOGON_EX.
+ *
+ * This sets the whole connection into a fault_state mode
+ * and all following request get NT_STATUS_RPC_PROCNUM_OUT_OF_RANGE.
+ *
+ * This also happens to our retry with LogonSamLogonWithFlags()
+ * and LogonSamLogon().
+ *
+ * In order to recover from this situation, we need to
+ * drop the connection.
+ */
+ invalidate_cm_connection(domain);
+ result = NT_STATUS_LOGON_FAILURE;
+ break;
+ }
+
} while ( (attempts < 2) && retry );
+ if (NT_STATUS_EQUAL(result, NT_STATUS_IO_TIMEOUT)) {
+ DEBUG(3,("winbind_samlogon_retry_loop: sam_network_logon(ex) "
+ "returned NT_STATUS_IO_TIMEOUT after the retry."
+ "Killing connections to domain %s\n",
+ domainname));
+ invalidate_cm_connection(domain);
+ }
return result;
}
'workstation' passed to the actual SamLogon call.
*/
names_blob = NTLMv2_generate_names_blob(
- mem_ctx, global_myname(), lp_workgroup());
+ mem_ctx, lp_netbios_name(), lp_workgroup());
if (!SMBNTLMv2encrypt(mem_ctx, name_user, name_domain,
pass,
DATA_BLOB chal_blob = data_blob_const(chal, sizeof(chal));
result = winbindd_dual_auth_passdb(
- mem_ctx, name_domain, name_user,
+ mem_ctx, 0, name_domain, name_user,
&chal_blob, &lm_resp, &nt_resp, info3);
- goto done;
+
+ /*
+ * We need to try the remote NETLOGON server if this is NOT_IMPLEMENTED
+ */
+ if (!NT_STATUS_EQUAL(result, NT_STATUS_NOT_IMPLEMENTED)) {
+ goto done;
+ }
}
/* check authentication loop */
result = winbind_samlogon_retry_loop(domain,
mem_ctx,
0,
- domain->dcname,
name_user,
+ pass,
name_domain,
- global_myname(),
+ lp_netbios_name(),
chal,
lm_resp,
nt_resp,
+ true, /* interactive */
&my_info3);
if (!NT_STATUS_IS_OK(result)) {
goto done;
struct policy_handle samr_domain_handle, user_pol;
union samr_UserInfo *info = NULL;
NTSTATUS status_tmp, result_tmp;
- uint32 acct_flags;
+ uint32_t acct_flags;
struct dcerpc_binding_handle *b;
- status_tmp = cm_connect_sam(domain, mem_ctx,
+ status_tmp = cm_connect_sam(domain, mem_ctx, false,
&samr_pipe, &samr_domain_handle);
if (!NT_STATUS_IS_OK(status_tmp)) {
fstr_sprintf( domain_user, "%s%c%s", name_domain,
*lp_winbind_separator(),
name_user );
- safe_strcpy( state->request->data.auth.user, domain_user,
- sizeof(state->request->data.auth.user)-1 );
+ strlcpy( state->request->data.auth.user, domain_user,
+ sizeof(state->request->data.auth.user));
}
if (!domain->online) {
"request in startup mode.\n", domain->name ));
winbindd_flush_negative_conn_cache(domain);
- result = init_dc_connection(domain);
+ result = init_dc_connection(domain, false);
}
}
sid_compose(&user_sid, info3->base.domain_sid,
info3->base.rid);
+ if (info3->base.full_name.string == NULL) {
+ struct netr_SamInfo3 *cached_info3;
+
+ cached_info3 = netsamlogon_cache_get(state->mem_ctx,
+ &user_sid);
+ if (cached_info3 != NULL &&
+ cached_info3->base.full_name.string != NULL) {
+ info3->base.full_name.string =
+ talloc_strdup(info3,
+ cached_info3->base.full_name.string);
+ } else {
+
+ /* this might fail so we don't check the return code */
+ wcache_query_user_fullname(domain,
+ info3,
+ &user_sid,
+ &info3->base.full_name.string);
+ }
+ }
+
wcache_invalidate_samlogon(find_domain_from_name(name_domain),
&user_sid);
netsamlogon_cache_store(name_user, info3);
return NT_STATUS_IS_OK(result) ? WINBINDD_OK : WINBINDD_ERROR;
}
+NTSTATUS winbind_dual_SamLogon(struct winbindd_domain *domain,
+ TALLOC_CTX *mem_ctx,
+ uint32_t logon_parameters,
+ const char *name_user,
+ const char *name_domain,
+ const char *workstation,
+ const uint8_t chal[8],
+ DATA_BLOB lm_response,
+ DATA_BLOB nt_response,
+ struct netr_SamInfo3 **info3)
+{
+ NTSTATUS result;
+
+ if (strequal(name_domain, get_global_sam_name())) {
+ DATA_BLOB chal_blob = data_blob_const(
+ chal, 8);
+
+ result = winbindd_dual_auth_passdb(
+ mem_ctx,
+ logon_parameters,
+ name_domain, name_user,
+ &chal_blob, &lm_response, &nt_response, info3);
+
+ /*
+ * We need to try the remote NETLOGON server if this is NOT_IMPLEMENTED
+ */
+ if (!NT_STATUS_EQUAL(result, NT_STATUS_NOT_IMPLEMENTED)) {
+ goto process_result;
+ }
+ }
+
+ result = winbind_samlogon_retry_loop(domain,
+ mem_ctx,
+ logon_parameters,
+ name_user,
+ NULL, /* password */
+ name_domain,
+ /* Bug #3248 - found by Stefan Burkei. */
+ workstation, /* We carefully set this above so use it... */
+ chal,
+ lm_response,
+ nt_response,
+ false, /* interactive */
+ info3);
+ if (!NT_STATUS_IS_OK(result)) {
+ goto done;
+ }
+
+process_result:
+
+ if (NT_STATUS_IS_OK(result)) {
+ struct dom_sid user_sid;
+
+ sid_compose(&user_sid, (*info3)->base.domain_sid,
+ (*info3)->base.rid);
+
+ if ((*info3)->base.full_name.string == NULL) {
+ struct netr_SamInfo3 *cached_info3;
+
+ cached_info3 = netsamlogon_cache_get(mem_ctx,
+ &user_sid);
+ if (cached_info3 != NULL &&
+ cached_info3->base.full_name.string != NULL) {
+ (*info3)->base.full_name.string =
+ talloc_strdup(*info3,
+ cached_info3->base.full_name.string);
+ } else {
+
+ /* this might fail so we don't check the return code */
+ wcache_query_user_fullname(domain,
+ *info3,
+ &user_sid,
+ &(*info3)->base.full_name.string);
+ }
+ }
+
+ wcache_invalidate_samlogon(find_domain_from_name(name_domain),
+ &user_sid);
+ netsamlogon_cache_store(name_user, *info3);
+ }
+
+done:
+
+ /* give us a more useful (more correct?) error code */
+ if ((NT_STATUS_EQUAL(result, NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND) ||
+ (NT_STATUS_EQUAL(result, NT_STATUS_UNSUCCESSFUL)))) {
+ result = NT_STATUS_NO_LOGON_SERVERS;
+ }
+
+ DEBUG(NT_STATUS_IS_OK(result) ? 5 : 2,
+ ("NTLM CRAP authentication for user [%s]\\[%s] returned %s\n",
+ name_domain,
+ name_user,
+ nt_errstr(result)));
+
+ return result;
+}
+
enum winbindd_result winbindd_dual_pam_auth_crap(struct winbindd_domain *domain,
struct winbindd_cli_state *state)
{
state->request->data.auth_crap.nt_resp_len);
}
- if (strequal(name_domain, get_global_sam_name())) {
- DATA_BLOB chal_blob = data_blob_const(
- state->request->data.auth_crap.chal,
- sizeof(state->request->data.auth_crap.chal));
-
- result = winbindd_dual_auth_passdb(
- state->mem_ctx, name_domain, name_user,
- &chal_blob, &lm_resp, &nt_resp, &info3);
- goto process_result;
- }
-
- result = winbind_samlogon_retry_loop(domain,
- state->mem_ctx,
- state->request->data.auth_crap.logon_parameters,
- 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);
+ result = winbind_dual_SamLogon(domain,
+ state->mem_ctx,
+ state->request->data.auth_crap.logon_parameters,
+ 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_IS_OK(result)) {
goto done;
}
-process_result:
-
if (NT_STATUS_IS_OK(result)) {
- struct dom_sid user_sid;
-
- sid_compose(&user_sid, info3->base.domain_sid,
- info3->base.rid);
- wcache_invalidate_samlogon(find_domain_from_name(name_domain),
- &user_sid);
- netsamlogon_cache_store(name_user, info3);
-
/* Check if the user is in the right group */
result = check_info3_in_group(
done:
- /* give us a more useful (more correct?) error code */
- if ((NT_STATUS_EQUAL(result, NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND) ||
- (NT_STATUS_EQUAL(result, NT_STATUS_UNSUCCESSFUL)))) {
- result = NT_STATUS_NO_LOGON_SERVERS;
- }
-
if (state->request->flags & WBFLAG_PAM_NT_STATUS_SQUASH) {
result = nt_status_squash(result);
}
set_auth_errors(state->response, result);
- DEBUG(NT_STATUS_IS_OK(result) ? 5 : 2,
- ("NTLM CRAP authentication for user [%s]\\[%s] returned %s (PAM: %d)\n",
- name_domain,
- name_user,
- state->response->data.auth.nt_status_string,
- state->response->data.auth.pam_error));
-
return NT_STATUS_IS_OK(result) ? WINBINDD_OK : WINBINDD_ERROR;
}
/* Get sam handle */
- result = cm_connect_sam(contact_domain, state->mem_ctx, &cli,
+ result = cm_connect_sam(contact_domain, state->mem_ctx, true, &cli,
&dom_pol);
if (!NT_STATUS_IS_OK(result)) {
DEBUG(1, ("could not get SAM handle on DC for %s\n", domain));
* short to comply with the samr_ChangePasswordUser3 idl - gd */
/* only fallback when the chgpasswd_user3 call is not supported */
- if ((NT_STATUS_EQUAL(result, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR))) ||
- (NT_STATUS_EQUAL(result, NT_STATUS_NOT_SUPPORTED)) ||
- (NT_STATUS_EQUAL(result, NT_STATUS_BUFFER_TOO_SMALL)) ||
- (NT_STATUS_EQUAL(result, NT_STATUS_NOT_IMPLEMENTED))) {
+ if (NT_STATUS_EQUAL(result, NT_STATUS_RPC_PROCNUM_OUT_OF_RANGE) ||
+ NT_STATUS_EQUAL(result, NT_STATUS_NOT_SUPPORTED) ||
+ NT_STATUS_EQUAL(result, NT_STATUS_BUFFER_TOO_SMALL) ||
+ NT_STATUS_EQUAL(result, NT_STATUS_NOT_IMPLEMENTED)) {
DEBUG(10,("Password change with chgpasswd_user3 failed with: %s, retrying chgpasswd_user2\n",
nt_errstr(result)));
goto process_result;
}
+ /*
+ * Remove any mlock'ed memory creds in the child
+ * we might be using for krb5 ticket renewal.
+ */
+
+ winbindd_delete_memory_creds(state->request->data.logoff.user);
+
#else
result = NT_STATUS_NOT_SUPPORTED;
#endif
}
if (!*domain && lp_winbind_use_default_domain()) {
- fstrcpy(domain,(char *)lp_workgroup());
+ fstrcpy(domain,lp_workgroup());
}
if(!*user) {
state->request->data.chng_pswd_auth_crap.old_lm_hash_enc,
state->request->data.chng_pswd_auth_crap.old_lm_hash_enc_len);
} else {
- new_lm_password.length = 0;
- old_lm_hash_enc.length = 0;
+ new_lm_password = data_blob_null;
+ old_lm_hash_enc = data_blob_null;
}
/* Get sam handle */
- result = cm_connect_sam(contact_domain, state->mem_ctx, &cli, &dom_pol);
+ result = cm_connect_sam(contact_domain, state->mem_ctx, true, &cli, &dom_pol);
if (!NT_STATUS_IS_OK(result)) {
DEBUG(1, ("could not get SAM handle on DC for %s\n", domain));
goto done;
return NT_STATUS_IS_OK(result) ? WINBINDD_OK : WINBINDD_ERROR;
}
+
+#ifdef HAVE_KRB5
+static NTSTATUS extract_pac_vrfy_sigs(TALLOC_CTX *mem_ctx, DATA_BLOB pac_blob,
+ struct PAC_LOGON_INFO **logon_info)
+{
+ krb5_context krbctx = NULL;
+ krb5_error_code k5ret;
+ krb5_keytab keytab;
+ krb5_kt_cursor cursor;
+ krb5_keytab_entry entry;
+ NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
+
+ ZERO_STRUCT(entry);
+ ZERO_STRUCT(cursor);
+
+ k5ret = krb5_init_context(&krbctx);
+ if (k5ret) {
+ DEBUG(1, ("Failed to initialize kerberos context: %s\n",
+ error_message(k5ret)));
+ status = krb5_to_nt_status(k5ret);
+ goto out;
+ }
+
+ k5ret = gse_krb5_get_server_keytab(krbctx, &keytab);
+ if (k5ret) {
+ DEBUG(1, ("Failed to get keytab: %s\n",
+ error_message(k5ret)));
+ status = krb5_to_nt_status(k5ret);
+ goto out_free;
+ }
+
+ k5ret = krb5_kt_start_seq_get(krbctx, keytab, &cursor);
+ if (k5ret) {
+ DEBUG(1, ("Failed to start seq: %s\n",
+ error_message(k5ret)));
+ status = krb5_to_nt_status(k5ret);
+ goto out_keytab;
+ }
+
+ k5ret = krb5_kt_next_entry(krbctx, keytab, &entry, &cursor);
+ while (k5ret == 0) {
+ status = kerberos_pac_logon_info(mem_ctx, pac_blob,
+ krbctx, NULL,
+ KRB5_KT_KEY(&entry), NULL, 0,
+ logon_info);
+ if (NT_STATUS_IS_OK(status)) {
+ break;
+ }
+ k5ret = smb_krb5_kt_free_entry(krbctx, &entry);
+ k5ret = krb5_kt_next_entry(krbctx, keytab, &entry, &cursor);
+ }
+
+ k5ret = krb5_kt_end_seq_get(krbctx, keytab, &cursor);
+ if (k5ret) {
+ DEBUG(1, ("Failed to end seq: %s\n",
+ error_message(k5ret)));
+ }
+out_keytab:
+ k5ret = krb5_kt_close(krbctx, keytab);
+ if (k5ret) {
+ DEBUG(1, ("Failed to close keytab: %s\n",
+ error_message(k5ret)));
+ }
+out_free:
+ krb5_free_context(krbctx);
+out:
+ return status;
+}
+
+NTSTATUS winbindd_pam_auth_pac_send(struct winbindd_cli_state *state,
+ struct netr_SamInfo3 **info3)
+{
+ struct winbindd_request *req = state->request;
+ DATA_BLOB pac_blob;
+ struct PAC_LOGON_INFO *logon_info = NULL;
+ struct netr_SamInfo3 *info3_copy = NULL;
+ NTSTATUS result;
+
+ pac_blob = data_blob_const(req->extra_data.data, req->extra_len);
+ result = extract_pac_vrfy_sigs(state->mem_ctx, pac_blob, &logon_info);
+ if (!NT_STATUS_IS_OK(result) &&
+ !NT_STATUS_EQUAL(result, NT_STATUS_ACCESS_DENIED)) {
+ DEBUG(1, ("Error during PAC signature verification: %s\n",
+ nt_errstr(result)));
+ return result;
+ }
+
+ if (logon_info) {
+ /* Signature verification succeeded, trust the PAC */
+ result = create_info3_from_pac_logon_info(state->mem_ctx,
+ logon_info,
+ &info3_copy);
+ if (!NT_STATUS_IS_OK(result)) {
+ return result;
+ }
+ netsamlogon_cache_store(NULL, info3_copy);
+
+ } else {
+ /* Try without signature verification */
+ result = kerberos_pac_logon_info(state->mem_ctx, pac_blob, NULL,
+ NULL, NULL, NULL, 0,
+ &logon_info);
+ if (!NT_STATUS_IS_OK(result)) {
+ DEBUG(10, ("Could not extract PAC: %s\n",
+ nt_errstr(result)));
+ return result;
+ }
+ if (logon_info) {
+ /*
+ * Don't strictly need to copy here,
+ * but it makes it explicit we're
+ * returning a copy talloc'ed off
+ * the state->mem_ctx.
+ */
+ info3_copy = copy_netr_SamInfo3(state->mem_ctx,
+ &logon_info->info3);
+ if (info3_copy == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ }
+ }
+
+ *info3 = info3_copy;
+
+ return NT_STATUS_OK;
+}
+#else /* HAVE_KRB5 */
+NTSTATUS winbindd_pam_auth_pac_send(struct winbindd_cli_state *state,
+ struct netr_SamInfo3 **info3)
+{
+ return NT_STATUS_NO_SUCH_USER;
+}
+#endif /* HAVE_KRB5 */
git.samba.org / samba.git / blobdiff