--- /dev/null
+/*
+ Unix SMB/CIFS implementation.
+
+ Winbind daemon - pam auth funcions
+
+ Copyright (C) Andrew Tridgell 2000
+ Copyright (C) Tim Potter 2001
+ Copyright (C) Andrew Bartlett 2001-2002
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+#include "winbindd.h"
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_WINBIND
+
+
+static NTSTATUS append_info3_as_ndr(TALLOC_CTX *mem_ctx,
+ struct winbindd_cli_state *state,
+ NET_USER_INFO_3 *info3)
+{
+ prs_struct ps;
+ uint32 size;
+ if (!prs_init(&ps, 256 /* Random, non-zero number */, mem_ctx, MARSHALL)) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ if (!net_io_user_info3("", info3, &ps, 1, 3, False)) {
+ prs_mem_free(&ps);
+ return NT_STATUS_UNSUCCESSFUL;
+ }
+
+ size = prs_data_size(&ps);
+ state->response.extra_data = SMB_MALLOC(size);
+ if (!state->response.extra_data) {
+ prs_mem_free(&ps);
+ return NT_STATUS_NO_MEMORY;
+ }
+ memset( state->response.extra_data, '\0', size );
+ prs_copy_all_data_out(state->response.extra_data, &ps);
+ state->response.length += size;
+ prs_mem_free(&ps);
+ return NT_STATUS_OK;
+}
+
+static NTSTATUS check_info3_in_group(TALLOC_CTX *mem_ctx,
+ NET_USER_INFO_3 *info3,
+ const char *group_sid)
+{
+ DOM_SID require_membership_of_sid;
+ DOM_SID *all_sids;
+ size_t num_all_sids = (2 + info3->num_groups2 + info3->num_other_sids);
+ size_t i, j = 0;
+
+ /* Parse the 'required group' SID */
+
+ if (!group_sid || !group_sid[0]) {
+ /* NO sid supplied, all users may access */
+ return NT_STATUS_OK;
+ }
+
+ if (!string_to_sid(&require_membership_of_sid, group_sid)) {
+ DEBUG(0, ("check_info3_in_group: could not parse %s as a SID!",
+ group_sid));
+
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ all_sids = TALLOC_ARRAY(mem_ctx, DOM_SID, num_all_sids);
+ if (!all_sids)
+ return NT_STATUS_NO_MEMORY;
+
+ /* and create (by appending rids) the 'domain' sids */
+
+ sid_copy(&all_sids[0], &(info3->dom_sid.sid));
+
+ if (!sid_append_rid(&all_sids[0], info3->user_rid)) {
+ DEBUG(3,("could not append user's primary RID 0x%x\n",
+ info3->user_rid));
+
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+ j++;
+
+ sid_copy(&all_sids[1], &(info3->dom_sid.sid));
+
+ if (!sid_append_rid(&all_sids[1], info3->group_rid)) {
+ DEBUG(3,("could not append additional group rid 0x%x\n",
+ info3->group_rid));
+
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+ j++;
+
+ for (i = 0; i < info3->num_groups2; i++) {
+
+ sid_copy(&all_sids[j], &(info3->dom_sid.sid));
+
+ if (!sid_append_rid(&all_sids[j], info3->gids[i].g_rid)) {
+ DEBUG(3,("could not append additional group rid 0x%x\n",
+ info3->gids[i].g_rid));
+
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+ j++;
+ }
+
+ /* Copy 'other' sids. We need to do sid filtering here to
+ prevent possible elevation of privileges. See:
+
+ http://www.microsoft.com/windows2000/techinfo/administration/security/sidfilter.asp
+ */
+
+ for (i = 0; i < info3->num_other_sids; i++) {
+ sid_copy(&all_sids[info3->num_groups2 + i + 2],
+ &info3->other_sids[i].sid);
+ j++;
+ }
+
+ for (i = 0; i < j; i++) {
+ fstring sid1, sid2;
+ DEBUG(10, ("User has SID: %s\n",
+ sid_to_string(sid1, &all_sids[i])));
+ if (sid_equal(&require_membership_of_sid, &all_sids[i])) {
+ DEBUG(10, ("SID %s matches %s - user permitted to authenticate!\n",
+ sid_to_string(sid1, &require_membership_of_sid), sid_to_string(sid2, &all_sids[i])));
+ return NT_STATUS_OK;
+ }
+ }
+
+ /* Do not distinguish this error from a wrong username/pw */
+
+ return NT_STATUS_LOGON_FAILURE;
+}
+
+static struct winbindd_domain *find_auth_domain(const char *domain_name)
+{
+ struct winbindd_domain *domain;
+
+ if (IS_DC) {
+ domain = find_domain_from_name_noinit(domain_name);
+ if (domain == NULL) {
+ DEBUG(3, ("Authentication for domain [%s] "
+ "as it is not a trusted domain\n",
+ domain_name));
+ }
+ return domain;
+ }
+
+ if (is_myname(domain_name)) {
+ DEBUG(3, ("Authentication for domain %s (local domain "
+ "to this server) not supported at this "
+ "stage\n", domain_name));
+ return NULL;
+ }
+
+ return find_our_domain();
+}
+
+static void set_auth_errors(struct winbindd_response *resp, NTSTATUS result)
+{
+ resp->data.auth.nt_status = NT_STATUS_V(result);
+ fstrcpy(resp->data.auth.nt_status_string, nt_errstr(result));
+
+ /* we might have given a more useful error above */
+ if (*resp->data.auth.error_string == '\0')
+ fstrcpy(resp->data.auth.error_string,
+ get_friendly_nt_error_msg(result));
+ resp->data.auth.pam_error = nt_status_to_pam(result);
+}
+
+/**********************************************************************
+ Authenticate a user with a clear text password
+**********************************************************************/
+
+void winbindd_pam_auth(struct winbindd_cli_state *state)
+{
+ struct winbindd_domain *domain;
+ fstring name_domain, name_user;
+
+ /* Ensure null termination */
+ state->request.data.auth.user
+ [sizeof(state->request.data.auth.user)-1]='\0';
+
+ /* Ensure null termination */
+ state->request.data.auth.pass
+ [sizeof(state->request.data.auth.pass)-1]='\0';
+
+ DEBUG(3, ("[%5lu]: pam auth %s\n", (unsigned long)state->pid,
+ state->request.data.auth.user));
+
+ /* Parse domain and username */
+
+ parse_domain_user(state->request.data.auth.user,
+ name_domain, name_user);
+
+ domain = find_auth_domain(name_domain);
+
+ if (domain == NULL) {
+ set_auth_errors(&state->response, NT_STATUS_NO_SUCH_USER);
+ DEBUG(5, ("Plain text authentication for %s returned %s "
+ "(PAM: %d)\n",
+ state->request.data.auth.user,
+ state->response.data.auth.nt_status_string,
+ state->response.data.auth.pam_error));
+ request_error(state);
+ return;
+ }
+
+ sendto_domain(state, domain);
+}
+
+enum winbindd_result winbindd_dual_pam_auth(struct winbindd_domain *domain,
+ struct winbindd_cli_state *state)
+{
+ NTSTATUS result;
+ fstring name_domain, name_user;
+ NET_USER_INFO_3 info3;
+ struct rpc_pipe_client *netlogon_pipe;
+ uchar chal[8];
+ DATA_BLOB lm_resp;
+ DATA_BLOB nt_resp;
+ int attempts = 0;
+ unsigned char local_lm_response[24];
+ unsigned char local_nt_response[24];
+ struct winbindd_domain *contact_domain;
+ BOOL retry;
+
+ /* Ensure null termination */
+ state->request.data.auth.user[sizeof(state->request.data.auth.user)-1]='\0';
+
+ /* Ensure null termination */
+ state->request.data.auth.pass[sizeof(state->request.data.auth.pass)-1]='\0';
+
+ DEBUG(3, ("[%5lu]: pam auth %s\n", (unsigned long)state->pid,
+ state->request.data.auth.user));
+
+ /* Parse domain and username */
+
+ parse_domain_user(state->request.data.auth.user, name_domain, name_user);
+
+ /* do password magic */
+
+
+ generate_random_buffer(chal, 8);
+ 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);
+
+ /* 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...
+ */
+ names_blob = NTLMv2_generate_names_blob(global_myname(), lp_workgroup());
+
+ if (!SMBNTLMv2encrypt(name_user, name_domain,
+ state->request.data.auth.pass,
+ &server_chal,
+ &names_blob,
+ &lm_response, &nt_response, 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 {
+ if (lp_client_lanman_auth()
+ && SMBencrypt(state->request.data.auth.pass,
+ chal,
+ local_lm_response)) {
+ lm_resp = data_blob_talloc(state->mem_ctx,
+ local_lm_response,
+ sizeof(local_lm_response));
+ } else {
+ lm_resp = data_blob(NULL, 0);
+ }
+ SMBNTencrypt(state->request.data.auth.pass,
+ chal,
+ local_nt_response);
+
+ nt_resp = data_blob_talloc(state->mem_ctx,
+ local_nt_response,
+ sizeof(local_nt_response));
+ }
+
+ /* what domain should we contact? */
+
+ if ( IS_DC ) {
+ if (!(contact_domain = find_domain_from_name(name_domain))) {
+ 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));
+ result = NT_STATUS_NO_SUCH_USER;
+ goto done;
+ }
+
+ } else {
+ if (is_myname(name_domain)) {
+ DEBUG(3, ("Authentication for domain %s (local domain to this server) not supported at this stage\n", name_domain));
+ result = NT_STATUS_NO_SUCH_USER;
+ goto done;
+ }
+
+ contact_domain = find_our_domain();
+ }
+
+ /* check authentication loop */
+
+ do {
+
+ ZERO_STRUCT(info3);
+ retry = False;
+
+ result = cm_connect_netlogon(contact_domain, &netlogon_pipe);
+
+ if (!NT_STATUS_IS_OK(result)) {
+ DEBUG(3, ("could not open handle to NETLOGON pipe\n"));
+ 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,
+ &info3);
+ 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 (NT_STATUS_EQUAL(result, NT_STATUS_UNSUCCESSFUL)) {
+ 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(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(&contact_domain->conn);
+ retry = True;
+ }
+
+ } while ( (attempts < 2) && retry );
+
+ if (NT_STATUS_IS_OK(result)) {
+ netsamlogon_cache_store(name_user, &info3);
+ wcache_invalidate_samlogon(find_domain_from_name(name_domain), &info3);
+
+ /* Check if the user is in the right group */
+
+ if (!NT_STATUS_IS_OK(result = check_info3_in_group(state->mem_ctx, &info3,
+ state->request.data.auth.require_membership_of_sid))) {
+ DEBUG(3, ("User %s is not in the required group (%s), so plaintext authentication is rejected\n",
+ state->request.data.auth.user,
+ state->request.data.auth.require_membership_of_sid));
+ }
+ }
+
+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;
+ }
+
+ state->response.data.auth.nt_status = NT_STATUS_V(result);
+ fstrcpy(state->response.data.auth.nt_status_string, nt_errstr(result));
+
+ /* we might have given a more useful error above */
+ if (!*state->response.data.auth.error_string)
+ fstrcpy(state->response.data.auth.error_string, get_friendly_nt_error_msg(result));
+ state->response.data.auth.pam_error = nt_status_to_pam(result);
+
+ DEBUG(NT_STATUS_IS_OK(result) ? 5 : 2, ("Plain-text authentication for user %s returned %s (PAM: %d)\n",
+ state->request.data.auth.user,
+ state->response.data.auth.nt_status_string,
+ state->response.data.auth.pam_error));
+
+ if ( NT_STATUS_IS_OK(result) &&
+ (state->request.flags & WBFLAG_PAM_AFS_TOKEN) ) {
+
+ char *afsname = talloc_strdup(state->mem_ctx,
+ lp_afs_username_map());
+ char *cell;
+
+ if (afsname == NULL) {
+ goto no_token;
+ }
+
+ afsname = talloc_string_sub(state->mem_ctx,
+ lp_afs_username_map(),
+ "%D", name_domain);
+ afsname = talloc_string_sub(state->mem_ctx, afsname,
+ "%u", name_user);
+ afsname = talloc_string_sub(state->mem_ctx, afsname,
+ "%U", name_user);
+
+ {
+ DOM_SID user_sid;
+ fstring sidstr;
+
+ sid_copy(&user_sid, &info3.dom_sid.sid);
+ sid_append_rid(&user_sid, info3.user_rid);
+ sid_to_string(sidstr, &user_sid);
+ afsname = talloc_string_sub(state->mem_ctx, afsname,
+ "%s", sidstr);
+ }
+
+ if (afsname == NULL) {
+ goto no_token;
+ }
+
+ strlower_m(afsname);
+
+ DEBUG(10, ("Generating token for user %s\n", afsname));
+
+ cell = strchr(afsname, '@');
+
+ if (cell == NULL) {
+ goto no_token;
+ }
+
+ *cell = '\0';
+ cell += 1;
+
+ /* Append an AFS token string */
+ state->response.extra_data =
+ afs_createtoken_str(afsname, cell);
+
+ if (state->response.extra_data != NULL)
+ state->response.length +=
+ strlen(state->response.extra_data)+1;
+
+ no_token:
+ talloc_free(afsname);
+ }
+
+ return NT_STATUS_IS_OK(result) ? WINBINDD_OK : WINBINDD_ERROR;
+}
+
+/**********************************************************************
+ Challenge Response Authentication Protocol
+**********************************************************************/
+
+void winbindd_pam_auth_crap(struct winbindd_cli_state *state)
+{
+ struct winbindd_domain *domain = NULL;
+ const char *domain_name = NULL;
+ NTSTATUS result;
+
+ if (!state->privileged) {
+ char *error_string = NULL;
+ DEBUG(2, ("winbindd_pam_auth_crap: non-privileged access "
+ "denied. !\n"));
+ DEBUGADD(2, ("winbindd_pam_auth_crap: Ensure permissions "
+ "on %s are set correctly.\n",
+ get_winbind_priv_pipe_dir()));
+ /* send a better message than ACCESS_DENIED */
+ error_string = talloc_asprintf(state->mem_ctx,
+ "winbind client not authorized "
+ "to use winbindd_pam_auth_crap."
+ " Ensure permissions on %s "
+ "are set correctly.",
+ get_winbind_priv_pipe_dir());
+ fstrcpy(state->response.data.auth.error_string, error_string);
+ result = NT_STATUS_ACCESS_DENIED;
+ goto done;
+ }
+
+ /* Ensure null termination */
+ state->request.data.auth_crap.user
+ [sizeof(state->request.data.auth_crap.user)-1]=0;
+ state->request.data.auth_crap.domain
+ [sizeof(state->request.data.auth_crap.domain)-1]=0;
+
+ DEBUG(3, ("[%5lu]: pam auth crap domain: [%s] user: %s\n",
+ (unsigned long)state->pid,
+ state->request.data.auth_crap.domain,
+ state->request.data.auth_crap.user));
+
+ if (*state->request.data.auth_crap.domain != '\0') {
+ domain_name = state->request.data.auth_crap.domain;
+ } else if (lp_winbind_use_default_domain()) {
+ domain_name = lp_workgroup();
+ }
+
+ if (domain_name != NULL)
+ domain = find_auth_domain(domain_name);
+
+ if (domain != NULL) {
+ sendto_domain(state, domain);
+ return;
+ }
+
+ result = NT_STATUS_NO_SUCH_USER;
+
+ done:
+ set_auth_errors(&state->response, result);
+ DEBUG(5, ("CRAP authentication for %s\\%s returned %s (PAM: %d)\n",
+ state->request.data.auth_crap.domain,
+ state->request.data.auth_crap.user,
+ state->response.data.auth.nt_status_string,
+ state->response.data.auth.pam_error));
+ request_error(state);
+ return;
+}
+
+
+enum winbindd_result winbindd_dual_pam_auth_crap(struct winbindd_domain *domain,
+ struct winbindd_cli_state *state)
+{
+ NTSTATUS result;
+ NET_USER_INFO_3 info3;
+ struct rpc_pipe_client *netlogon_pipe;
+ const char *name_user = NULL;
+ const char *name_domain = NULL;
+ const char *workstation;
+ struct winbindd_domain *contact_domain;
+ int attempts = 0;
+ BOOL retry;
+
+ DATA_BLOB lm_resp, nt_resp;
+
+ /* This is child-only, so no check for privileged access is needed
+ anymore */
+
+ /* Ensure null termination */
+ state->request.data.auth_crap.user[sizeof(state->request.data.auth_crap.user)-1]=0;
+ state->request.data.auth_crap.domain[sizeof(state->request.data.auth_crap.domain)-1]=0;
+
+ name_user = state->request.data.auth_crap.user;
+
+ if (*state->request.data.auth_crap.domain) {
+ name_domain = state->request.data.auth_crap.domain;
+ } else if (lp_winbind_use_default_domain()) {
+ name_domain = lp_workgroup();
+ } else {
+ DEBUG(5,("no domain specified with username (%s) - failing auth\n",
+ name_user));
+ result = NT_STATUS_NO_SUCH_USER;
+ goto done;
+ }
+
+ DEBUG(3, ("[%5lu]: pam auth crap domain: %s user: %s\n", (unsigned long)state->pid,
+ name_domain, name_user));
+
+ if (*state->request.data.auth_crap.workstation) {
+ workstation = state->request.data.auth_crap.workstation;
+ } else {
+ workstation = global_myname();
+ }
+
+ if (state->request.data.auth_crap.lm_resp_len > sizeof(state->request.data.auth_crap.lm_resp)
+ || state->request.data.auth_crap.nt_resp_len > sizeof(state->request.data.auth_crap.nt_resp)) {
+ DEBUG(0, ("winbindd_pam_auth_crap: invalid password length %u/%u\n",
+ state->request.data.auth_crap.lm_resp_len,
+ state->request.data.auth_crap.nt_resp_len));
+ result = NT_STATUS_INVALID_PARAMETER;
+ goto done;
+ }
+
+ lm_resp = data_blob_talloc(state->mem_ctx, state->request.data.auth_crap.lm_resp,
+ state->request.data.auth_crap.lm_resp_len);
+ nt_resp = data_blob_talloc(state->mem_ctx, state->request.data.auth_crap.nt_resp,
+ state->request.data.auth_crap.nt_resp_len);
+
+ /* what domain should we contact? */
+
+ if ( IS_DC ) {
+ if (!(contact_domain = find_domain_from_name(name_domain))) {
+ DEBUG(3, ("Authentication for domain for [%s] -> [%s]\\[%s] failed as %s is not a trusted domain\n",
+ state->request.data.auth_crap.user, name_domain, name_user, name_domain));
+ result = NT_STATUS_NO_SUCH_USER;
+ goto done;
+ }
+ } else {
+ if (is_myname(name_domain)) {
+ DEBUG(3, ("Authentication for domain %s (local domain to this server) not supported at this stage\n", name_domain));
+ result = NT_STATUS_NO_SUCH_USER;
+ goto done;
+ }
+ contact_domain = find_our_domain();
+ }
+
+ do {
+ ZERO_STRUCT(info3);
+ retry = False;
+
+ result = cm_connect_netlogon(contact_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;
+ }
+
+ 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);
+
+ 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 (NT_STATUS_EQUAL(result, NT_STATUS_UNSUCCESSFUL)) {
+ 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(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(&contact_domain->conn);
+ retry = True;
+ }
+
+ } while ( (attempts < 2) && retry );
+
+ if (NT_STATUS_IS_OK(result)) {
+ netsamlogon_cache_store(name_user, &info3);
+ wcache_invalidate_samlogon(find_domain_from_name(name_domain), &info3);
+
+ /* Check if the user is in the right group */
+
+ if (!NT_STATUS_IS_OK(result = check_info3_in_group(state->mem_ctx, &info3,
+ state->request.data.auth_crap.require_membership_of_sid))) {
+ DEBUG(3, ("User %s is not in the required group (%s), so plaintext authentication is rejected\n",
+ state->request.data.auth_crap.user,
+ state->request.data.auth_crap.require_membership_of_sid));
+ goto done;
+ }
+
+ if (state->request.flags & WBFLAG_PAM_INFO3_NDR) {
+ result = append_info3_as_ndr(state->mem_ctx, state, &info3);
+ } else if (state->request.flags & WBFLAG_PAM_UNIX_NAME) {
+ /* ntlm_auth should return the unix username, per
+ 'winbind use default domain' settings and the like */
+
+ fstring username_out;
+ const char *nt_username, *nt_domain;
+ if (!(nt_username = unistr2_tdup(state->mem_ctx, &(info3.uni_user_name)))) {
+ /* If the server didn't give us one, just use the one we sent them */
+ nt_username = name_user;
+ }
+
+ if (!(nt_domain = unistr2_tdup(state->mem_ctx, &(info3.uni_logon_dom)))) {
+ /* If the server didn't give us one, just use the one we sent them */
+ nt_domain = name_domain;
+ }
+
+ fill_domain_username(username_out, nt_domain, nt_username);
+
+ DEBUG(5, ("Setting unix username to [%s]\n", username_out));
+
+ state->response.extra_data = SMB_STRDUP(username_out);
+ if (!state->response.extra_data) {
+ result = NT_STATUS_NO_MEMORY;
+ goto done;
+ }
+ state->response.length += strlen(state->response.extra_data)+1;
+ }
+
+ if (state->request.flags & WBFLAG_PAM_USER_SESSION_KEY) {
+ memcpy(state->response.data.auth.user_session_key, info3.user_sess_key,
+ sizeof(state->response.data.auth.user_session_key) /* 16 */);
+ }
+ if (state->request.flags & WBFLAG_PAM_LMKEY) {
+ memcpy(state->response.data.auth.first_8_lm_hash, info3.lm_sess_key,
+ sizeof(state->response.data.auth.first_8_lm_hash) /* 8 */);
+ }
+ }
+
+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);
+ }
+
+ state->response.data.auth.nt_status = NT_STATUS_V(result);
+ fstrcpy(state->response.data.auth.nt_status_string, nt_errstr(result));
+
+ /* we might have given a more useful error above */
+ if (!*state->response.data.auth.error_string) {
+ fstrcpy(state->response.data.auth.error_string, get_friendly_nt_error_msg(result));
+ }
+ state->response.data.auth.pam_error = nt_status_to_pam(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;
+}
+
+/* Change a user password */
+
+void winbindd_pam_chauthtok(struct winbindd_cli_state *state)
+{
+ NTSTATUS result;
+ char *oldpass, *newpass;
+ fstring domain, user;
+ POLICY_HND dom_pol;
+ struct winbindd_domain *contact_domain;
+ struct rpc_pipe_client *cli;
+
+ DEBUG(3, ("[%5lu]: pam chauthtok %s\n", (unsigned long)state->pid,
+ state->request.data.chauthtok.user));
+
+ /* Setup crap */
+
+ parse_domain_user(state->request.data.chauthtok.user, domain, user);
+
+ if (!(contact_domain = find_domain_from_name(domain))) {
+ DEBUG(3, ("Cannot change password for [%s] -> [%s]\\[%s] as %s is not a trusted domain\n",
+ state->request.data.chauthtok.user, domain, user, domain));
+ result = NT_STATUS_NO_SUCH_USER;
+ goto done;
+ }
+
+ /* Change password */
+
+ oldpass = state->request.data.chauthtok.oldpass;
+ newpass = state->request.data.chauthtok.newpass;
+
+ /* Get sam handle */
+
+ result = cm_connect_sam(contact_domain, state->mem_ctx, &cli,
+ &dom_pol);
+ if (!NT_STATUS_IS_OK(result)) {
+ DEBUG(1, ("could not get SAM handle on DC for %s\n", domain));
+ goto done;
+ }
+
+ result = rpccli_samr_chgpasswd_user(cli, state->mem_ctx, user, newpass,
+ oldpass);
+
+done:
+ state->response.data.auth.nt_status = NT_STATUS_V(result);
+ fstrcpy(state->response.data.auth.nt_status_string, nt_errstr(result));
+ fstrcpy(state->response.data.auth.error_string, get_friendly_nt_error_msg(result));
+ state->response.data.auth.pam_error = nt_status_to_pam(result);
+
+ DEBUG(NT_STATUS_IS_OK(result) ? 5 : 2,
+ ("Password change for user [%s]\\[%s] returned %s (PAM: %d)\n",
+ domain,
+ user,
+ state->response.data.auth.nt_status_string,
+ state->response.data.auth.pam_error));
+
+ if (NT_STATUS_IS_OK(result))
+ request_ok(state);
+ else
+ request_error(state);
+}
projects / samba / blobdiff