#include "includes.h"
#include "winbindd.h"
#include "../libcli/auth/libcli_auth.h"
-#include "../librpc/gen_ndr/cli_samr.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,
- struct winbindd_cli_state *state)
+ struct winbindd_response *response)
{
+ TALLOC_CTX *frame = talloc_stackframe();
struct winbindd_methods *methods;
- NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
+ NTSTATUS status;
struct samr_DomInfo1 password_policy;
if ( !winbindd_can_contact_domain( domain ) ) {
DEBUG(5,("fillup_password_policy: No inbound trust to "
"contact domain %s\n", domain->name));
- return NT_STATUS_NOT_SUPPORTED;
+ status = NT_STATUS_NOT_SUPPORTED;
+ goto done;
}
methods = domain->methods;
- status = methods->password_policy(domain, state->mem_ctx, &password_policy);
+ status = methods->password_policy(domain, talloc_tos(), &password_policy);
if (NT_STATUS_IS_ERR(status)) {
- return status;
+ goto done;
}
- fill_in_password_policy(state->response, &password_policy);
+ fill_in_password_policy(response, &password_policy);
+done:
+ TALLOC_FREE(frame);
return NT_STATUS_OK;
}
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;
return uid;
}
-static uid_t get_uid_from_state(struct winbindd_cli_state *state)
-{
- return get_uid_from_request(state->request);
-}
-
/**********************************************************************
Authenticate a user with a clear text password using Kerberos and fill up
ccache if required
**********************************************************************/
-static NTSTATUS winbindd_raw_kerberos_login(struct winbindd_domain *domain,
- struct winbindd_cli_state *state,
- struct netr_SamInfo3 **info3)
+static NTSTATUS winbindd_raw_kerberos_login(TALLOC_CTX *mem_ctx,
+ struct winbindd_domain *domain,
+ const char *user,
+ const char *pass,
+ const char *krb5_cc_type,
+ uid_t uid,
+ struct netr_SamInfo3 **info3,
+ fstring krb5ccname)
{
#ifdef HAVE_KRB5
NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
fstring name_domain, name_user;
time_t ticket_lifetime = 0;
time_t renewal_until = 0;
- uid_t uid = -1;
ADS_STRUCT *ads;
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 */
- uid = get_uid_from_state(state);
if (uid == -1) {
DEBUG(0,("no valid uid\n"));
}
- cc = generate_krb5_ccache(state->mem_ctx,
- state->request->data.auth.krb5_cc_type,
- state->request->data.auth.uid,
+ cc = generate_krb5_ccache(mem_ctx,
+ krb5_cc_type,
+ uid,
&user_ccache_file);
if (cc == NULL) {
return NT_STATUS_NO_MEMORY;
/* 3rd step:
* do kerberos auth and setup ccache as the user */
- parse_domain_user(state->request->data.auth.user, name_domain, name_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(state->mem_ctx, "%s@%s", name_user, realm);
+ principal_s = talloc_asprintf(mem_ctx, "%s@%s", name_user, realm);
if (principal_s == NULL) {
return NT_STATUS_NO_MEMORY;
}
- service = talloc_asprintf(state->mem_ctx, "%s/%s@%s", KRB5_TGS_NAME, realm, realm);
+ service = talloc_asprintf(mem_ctx, "%s/%s@%s", KRB5_TGS_NAME, realm, realm);
if (service == 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. */
DEBUG(10,("winbindd_raw_kerberos_login: uid is %d\n", uid));
}
- result = kerberos_return_pac(state->mem_ctx,
+ result = kerberos_return_pac(mem_ctx,
principal_s,
- state->request->data.auth.pass,
+ pass,
time_offset,
&ticket_lifetime,
&renewal_until,
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 */
if (user_ccache_file != NULL) {
- fstrcpy(state->response->data.auth.krb5ccname,
- user_ccache_file);
+ fstrcpy(krb5ccname, user_ccache_file);
result = add_ccache_to_list(principal_s,
cc,
service,
- state->request->data.auth.user,
+ 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
"%s\n", error_message(krb5_ret)));
}
- if (!NT_STATUS_IS_OK(remove_ccache(state->request->data.auth.user))) {
+ if (!NT_STATUS_IS_OK(remove_ccache(user))) {
DEBUG(3,("winbindd_raw_kerberos_login: "
"could not remove ccache for user %s\n",
- state->request->data.auth.user));
+ user));
}
return result;
/****************************************************************
****************************************************************/
-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;
- uid = get_uid_from_state(state);
+ 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_INVALID_PARAMETER;
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) {
return NT_STATUS_INVALID_LOGON_TYPE;
}
try_login:
- result = winbindd_raw_kerberos_login(contact_domain, state, info3);
+ result = winbindd_raw_kerberos_login(
+ state->mem_ctx, contact_domain,
+ state->request->data.auth.user,
+ state->request->data.auth.pass,
+ state->request->data.auth.krb5_cc_type,
+ get_uid_from_request(state->request),
+ info3, state->response->data.auth.krb5ccname);
done:
return result;
}
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;
}
-typedef NTSTATUS (*netlogon_fn_t)(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);
-
-static NTSTATUS winbindd_dual_pam_auth_samlogon(struct winbindd_domain *domain,
- struct winbindd_cli_state *state,
+static NTSTATUS winbind_samlogon_retry_loop(struct winbindd_domain *domain,
+ TALLOC_CTX *mem_ctx,
+ uint32_t logon_parameters,
+ 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;
+ 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, 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;
+ }
+ 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_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);
+ }
+
+ /*
+ * we increment this after the "feature negotiation"
+ * for can_do_samlogon_ex and can_do_validation6
+ */
+ attempts += 1;
+
+ /* We have to try a second time as cm_connect_netlogon
+ might not yet have noticed that the DC has killed
+ our connection. */
+
+ if (!rpccli_is_connected(netlogon_pipe)) {
+ retry = true;
+ continue;
+ }
+
+ /* if we get access denied, a possible cause was that we had
+ and open connection to the DC, but someone changed our
+ machine account password out from underneath us using 'net
+ rpc changetrustpw' */
+
+ if ( NT_STATUS_EQUAL(result, NT_STATUS_ACCESS_DENIED) ) {
+ 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);
+ 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;
+}
+
+static NTSTATUS winbindd_dual_pam_auth_samlogon(TALLOC_CTX *mem_ctx,
+ struct winbindd_domain *domain,
+ const char *user,
+ const char *pass,
+ uint32_t request_flags,
struct netr_SamInfo3 **info3)
{
- struct rpc_pipe_client *netlogon_pipe;
uchar chal[8];
DATA_BLOB lm_resp;
DATA_BLOB nt_resp;
- int attempts = 0;
unsigned char local_nt_response[24];
fstring name_domain, name_user;
- bool retry;
NTSTATUS result;
struct netr_SamInfo3 *my_info3 = NULL;
/* Parse domain and username */
- parse_domain_user(state->request->data.auth.user, name_domain, name_user);
+ parse_domain_user(user, name_domain, name_user);
/* do password magic */
if (lp_client_ntlmv2_auth()) {
DATA_BLOB server_chal;
DATA_BLOB names_blob;
- DATA_BLOB nt_response;
- DATA_BLOB lm_response;
- server_chal = data_blob_talloc(state->mem_ctx, chal, 8);
+ server_chal = data_blob_const(chal, 8);
- /* note that the 'workgroup' here is a best guess - we don't know
- the server's domain at this point. The 'server name' is also
- dodgy...
+ /* note that the 'workgroup' here is for the local
+ machine. The 'server name' must match the
+ 'workstation' passed to the actual SamLogon call.
*/
- names_blob = NTLMv2_generate_names_blob(state->mem_ctx, global_myname(), lp_workgroup());
+ names_blob = NTLMv2_generate_names_blob(
+ mem_ctx, lp_netbios_name(), lp_workgroup());
- if (!SMBNTLMv2encrypt(NULL, name_user, name_domain,
- state->request->data.auth.pass,
+ if (!SMBNTLMv2encrypt(mem_ctx, name_user, name_domain,
+ pass,
&server_chal,
&names_blob,
- &lm_response, &nt_response, NULL, NULL)) {
+ &lm_resp, &nt_resp, NULL, NULL)) {
data_blob_free(&names_blob);
- data_blob_free(&server_chal);
DEBUG(0, ("winbindd_pam_auth: SMBNTLMv2encrypt() failed!\n"));
result = NT_STATUS_NO_MEMORY;
goto done;
}
data_blob_free(&names_blob);
- data_blob_free(&server_chal);
- lm_resp = data_blob_talloc(state->mem_ctx, lm_response.data,
- lm_response.length);
- nt_resp = data_blob_talloc(state->mem_ctx, nt_response.data,
- nt_response.length);
- data_blob_free(&lm_response);
- data_blob_free(&nt_response);
-
} else {
lm_resp = data_blob_null;
- SMBNTencrypt(state->request->data.auth.pass,
- chal,
- local_nt_response);
+ SMBNTencrypt(pass, chal, local_nt_response);
- nt_resp = data_blob_talloc(state->mem_ctx,
- local_nt_response,
+ nt_resp = data_blob_talloc(mem_ctx, local_nt_response,
sizeof(local_nt_response));
}
DATA_BLOB chal_blob = data_blob_const(chal, sizeof(chal));
result = winbindd_dual_auth_passdb(
- state->mem_ctx, name_domain, name_user,
+ mem_ctx, 0, name_domain, name_user,
&chal_blob, &lm_resp, &nt_resp, info3);
- goto done;
- }
-
- /* check authentication loop */
-
- do {
- netlogon_fn_t logon_fn;
- ZERO_STRUCTP(my_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\n"));
- goto done;
- }
-
- /* 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
+ /*
+ * We need to try the remote NETLOGON server if this is NOT_IMPLEMENTED
*/
-
- logon_fn = 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,
- 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)
- && 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;
- continue;
- }
-
- /* We have to try a second time as cm_connect_netlogon
- might not yet have noticed that the DC has killed
- our connection. */
-
- if (!rpccli_is_connected(netlogon_pipe)) {
- continue;
+ if (!NT_STATUS_EQUAL(result, NT_STATUS_NOT_IMPLEMENTED)) {
+ goto done;
}
+ }
- /* if we get access denied, a possible cause was that we had
- and open connection to the DC, but someone changed our
- machine account password out from underneath us using 'net
- 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 "
- "password was changed and we didn't know it. "
- "Killing connections to domain %s\n",
- name_domain));
- invalidate_cm_connection(&domain->conn);
- retry = true;
- }
+ /* check authentication loop */
- } while ( (attempts < 2) && retry );
+ result = winbind_samlogon_retry_loop(domain,
+ mem_ctx,
+ 0,
+ name_user,
+ pass,
+ name_domain,
+ lp_netbios_name(),
+ chal,
+ lm_resp,
+ nt_resp,
+ true, /* interactive */
+ &my_info3);
+ if (!NT_STATUS_IS_OK(result)) {
+ goto done;
+ }
/* handle the case where a NT4 DC does not fill in the acct_flags in
* the samlogon reply info3. When accurate info3 is required by the
* caller, we look up the account flags ourselve - gd */
- if ((state->request->flags & WBFLAG_PAM_INFO3_TEXT) &&
+ if ((request_flags & WBFLAG_PAM_INFO3_TEXT) &&
NT_STATUS_IS_OK(result) && (my_info3->base.acct_flags == 0)) {
struct rpc_pipe_client *samr_pipe;
struct policy_handle samr_domain_handle, user_pol;
union samr_UserInfo *info = NULL;
- NTSTATUS status_tmp;
- uint32 acct_flags;
+ NTSTATUS status_tmp, result_tmp;
+ uint32_t acct_flags;
+ struct dcerpc_binding_handle *b;
- status_tmp = cm_connect_sam(domain, state->mem_ctx,
+ status_tmp = cm_connect_sam(domain, mem_ctx, false,
&samr_pipe, &samr_domain_handle);
if (!NT_STATUS_IS_OK(status_tmp)) {
goto done;
}
- status_tmp = rpccli_samr_OpenUser(samr_pipe, state->mem_ctx,
+ b = samr_pipe->binding_handle;
+
+ status_tmp = dcerpc_samr_OpenUser(b, mem_ctx,
&samr_domain_handle,
MAXIMUM_ALLOWED_ACCESS,
my_info3->base.rid,
- &user_pol);
+ &user_pol,
+ &result_tmp);
if (!NT_STATUS_IS_OK(status_tmp)) {
DEBUG(3, ("could not open user handle on SAMR pipe: %s\n",
nt_errstr(status_tmp)));
goto done;
}
+ if (!NT_STATUS_IS_OK(result_tmp)) {
+ DEBUG(3, ("could not open user handle on SAMR pipe: %s\n",
+ nt_errstr(result_tmp)));
+ goto done;
+ }
- status_tmp = rpccli_samr_QueryUserInfo(samr_pipe, state->mem_ctx,
+ status_tmp = dcerpc_samr_QueryUserInfo(b, mem_ctx,
&user_pol,
16,
- &info);
+ &info,
+ &result_tmp);
if (!NT_STATUS_IS_OK(status_tmp)) {
DEBUG(3, ("could not query user info on SAMR pipe: %s\n",
nt_errstr(status_tmp)));
- rpccli_samr_Close(samr_pipe, state->mem_ctx, &user_pol);
+ dcerpc_samr_Close(b, mem_ctx, &user_pol, &result_tmp);
+ goto done;
+ }
+ if (!NT_STATUS_IS_OK(result_tmp)) {
+ DEBUG(3, ("could not query user info on SAMR pipe: %s\n",
+ nt_errstr(result_tmp)));
+ dcerpc_samr_Close(b, mem_ctx, &user_pol, &result_tmp);
goto done;
}
acct_flags = info->info16.acct_flags;
if (acct_flags == 0) {
- rpccli_samr_Close(samr_pipe, state->mem_ctx, &user_pol);
+ dcerpc_samr_Close(b, mem_ctx, &user_pol, &result_tmp);
goto done;
}
DEBUG(10,("successfully retrieved acct_flags 0x%x\n", acct_flags));
- rpccli_samr_Close(samr_pipe, state->mem_ctx, &user_pol);
+ dcerpc_samr_Close(b, mem_ctx, &user_pol, &result_tmp);
}
*info3 = my_info3;
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);
}
}
sam_logon:
/* Check for Samlogon authentication */
if (domain->online) {
- result = winbindd_dual_pam_auth_samlogon(domain, state, &info3);
+ result = winbindd_dual_pam_auth_samlogon(
+ state->mem_ctx, domain,
+ state->request->data.auth.user,
+ state->request->data.auth.pass,
+ state->request->flags,
+ &info3);
if (NT_STATUS_IS_OK(result)) {
DEBUG(10,("winbindd_dual_pam_auth_samlogon succeeded\n"));
goto done;
}
- wcache_invalidate_samlogon(find_domain_from_name(name_domain), info3);
+ 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);
/* save name_to_sid info as early as possible (only if
the cache entry by storing the seq_num for the wrong
domain). */
if ( domain->primary ) {
- sid_compose(&user_sid, info3->base.domain_sid,
- info3->base.rid);
cache_name2sid(domain, name_domain, name_user,
SID_NAME_USER, &user_sid);
}
result = NT_STATUS_NOT_SUPPORTED;
if (our_domain == domain ) {
- result = fillup_password_policy(our_domain, state);
+ result = fillup_password_policy(
+ our_domain, state->response);
}
if (!NT_STATUS_IS_OK(result)
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)
{
NTSTATUS result;
struct netr_SamInfo3 *info3 = NULL;
- struct rpc_pipe_client *netlogon_pipe;
const char *name_user = NULL;
const char *name_domain = NULL;
const char *workstation;
- int attempts = 0;
- bool retry;
DATA_BLOB lm_resp, nt_resp;
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_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;
}
- do {
- netlogon_fn_t logon_fn;
-
- retry = false;
-
- netlogon_pipe = NULL;
- 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)));
- goto done;
- }
-
- logon_fn = 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,
- 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)
- && 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;
- continue;
- }
-
- attempts += 1;
-
- /* We have to try a second time as cm_connect_netlogon
- might not yet have noticed that the DC has killed
- our connection. */
-
- if (!rpccli_is_connected(netlogon_pipe)) {
- continue;
- }
-
- /* if we get access denied, a possible cause was that we had and open
- connection to the DC, but someone changed our machine account password
- out from underneath us using 'net 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 "
- "password was changed and we didn't know it. "
- "Killing connections to domain %s\n",
- name_domain));
- invalidate_cm_connection(&domain->conn);
- retry = true;
- }
-
- } while ( (attempts < 2) && retry );
-
-process_result:
-
if (NT_STATUS_IS_OK(result)) {
-
- wcache_invalidate_samlogon(find_domain_from_name(name_domain), info3);
- 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;
}
struct userPwdChangeFailureInformation *reject = NULL;
NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
fstring domain, user;
+ struct dcerpc_binding_handle *b = NULL;
ZERO_STRUCT(dom_pol);
/* 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));
goto done;
}
+ b = cli->binding_handle;
+
result = rpccli_samr_chgpasswd_user3(cli, state->mem_ctx,
user,
newpass,
* 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)));
NTSTATUS policy_ret;
- policy_ret = fillup_password_policy(contact_domain, state);
+ policy_ret = fillup_password_policy(
+ contact_domain, state->response);
/* failure of this is non critical, it will just provide no
* additional information to the client why the change has
if (strequal(contact_domain->name, get_global_sam_name())) {
/* FIXME: internal rpc pipe does not cache handles yet */
- if (cli) {
+ if (b) {
if (is_valid_policy_hnd(&dom_pol)) {
- rpccli_samr_Close(cli, state->mem_ctx, &dom_pol);
+ NTSTATUS _result;
+ dcerpc_samr_Close(b, state->mem_ctx, &dom_pol, &_result);
}
TALLOC_FREE(cli);
}
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
struct policy_handle dom_pol;
struct winbindd_domain *contact_domain = domainSt;
struct rpc_pipe_client *cli = NULL;
+ struct dcerpc_binding_handle *b = NULL;
ZERO_STRUCT(dom_pol);
}
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;
}
+ b = cli->binding_handle;
+
result = rpccli_samr_chng_pswd_auth_crap(
cli, state->mem_ctx, user, new_nt_password, old_nt_hash_enc,
new_lm_password, old_lm_hash_enc);
if (strequal(contact_domain->name, get_global_sam_name())) {
/* FIXME: internal rpc pipe does not cache handles yet */
- if (cli) {
+ if (b) {
if (is_valid_policy_hnd(&dom_pol)) {
- rpccli_samr_Close(cli, state->mem_ctx, &dom_pol);
+ NTSTATUS _result;
+ dcerpc_samr_Close(b, state->mem_ctx, &dom_pol, &_result);
}
TALLOC_FREE(cli);
}
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