diff options
Diffstat (limited to 'source3/winbindd/winbindd_pam_chauthtok.c')
| -rw-r--r-- | source3/winbindd/winbindd_pam_chauthtok.c | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/source3/winbindd/winbindd_pam_chauthtok.c b/source3/winbindd/winbindd_pam_chauthtok.c new file mode 100644 index 0000000..e778df8 --- /dev/null +++ b/source3/winbindd/winbindd_pam_chauthtok.c @@ -0,0 +1,204 @@ +/* + Unix SMB/CIFS implementation. + async implementation of WINBINDD_PAM_CHAUTHTOK + Copyright (C) Volker Lendecke 2010 + + 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 3 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, see <http://www.gnu.org/licenses/>. +*/ + +#include "includes.h" +#include "winbindd.h" +#include "lib/util/string_wrappers.h" +#include "lib/global_contexts.h" +#include "librpc/gen_ndr/ndr_winbind_c.h" + +static void fill_in_password_policy(struct winbindd_response *r, + const struct samr_DomInfo1 *p) +{ + r->data.auth.policy.min_length_password = + p->min_password_length; + r->data.auth.policy.password_history = + p->password_history_length; + r->data.auth.policy.password_properties = + p->password_properties; + r->data.auth.policy.expire = + nt_time_to_unix_abs((const NTTIME *)&(p->max_password_age)); + r->data.auth.policy.min_passwordage = + nt_time_to_unix_abs((const NTTIME *)&(p->min_password_age)); +} + +struct winbindd_pam_chauthtok_state { + struct wbint_PamAuthChangePassword r; +}; + +static void winbindd_pam_chauthtok_done(struct tevent_req *subreq); + +struct tevent_req *winbindd_pam_chauthtok_send( + TALLOC_CTX *mem_ctx, + struct tevent_context *ev, + struct winbindd_cli_state *cli, + struct winbindd_request *request) +{ + struct tevent_req *req, *subreq; + struct winbindd_pam_chauthtok_state *state; + struct winbindd_domain *contact_domain; + char *namespace = NULL; + char *domain = NULL; + char *user = NULL; + char *chauthtok_user = NULL; + char *mapped_user; + NTSTATUS status; + bool ok; + + req = tevent_req_create(mem_ctx, &state, + struct winbindd_pam_chauthtok_state); + if (req == NULL) { + return NULL; + } + + /* Ensure null termination */ + request->data.chauthtok.user[ + sizeof(request->data.chauthtok.user)-1]='\0'; + + DEBUG(3, ("[%5lu]: pam chauthtok %s\n", (unsigned long)cli->pid, + request->data.chauthtok.user)); + + status = normalize_name_unmap(state, request->data.chauthtok.user, + &mapped_user); + + if (NT_STATUS_IS_OK(status) || + NT_STATUS_EQUAL(status, NT_STATUS_FILE_RENAMED)) { + fstrcpy(request->data.chauthtok.user, mapped_user); + } + + chauthtok_user = request->data.chauthtok.user; + ok = canonicalize_username(req, + &chauthtok_user, + &namespace, + &domain, + &user); + if (!ok) { + DEBUG(10, ("winbindd_pam_chauthtok: canonicalize_username %s " + "failed with\n", request->data.chauthtok.user)); + tevent_req_nterror(req, NT_STATUS_NO_SUCH_USER); + return tevent_req_post(req, ev); + } + + fstrcpy(request->data.chauthtok.user, chauthtok_user); + + contact_domain = find_domain_from_name(namespace); + if (contact_domain == NULL) { + DEBUG(3, ("Cannot change password for [%s] -> [%s]\\[%s] " + "as %s is not a trusted domain\n", + request->data.chauthtok.user, domain, user, domain)); + tevent_req_nterror(req, NT_STATUS_NO_SUCH_USER); + return tevent_req_post(req, ev); + } + + state->r.in.client_pid = request->pid; + state->r.in.flags = request->flags; + + state->r.in.client_name = talloc_strdup(state, request->client_name); + if (tevent_req_nomem(state->r.in.client_name, req)) { + return tevent_req_post(req, ev); + } + + state->r.in.user = talloc_strdup(state, request->data.chauthtok.user); + if (tevent_req_nomem(state->r.in.user, req)) { + return tevent_req_post(req, ev); + } + + state->r.in.old_password = talloc_strdup(state, + request->data.chauthtok.oldpass); + if (tevent_req_nomem(state->r.in.old_password, req)) { + return tevent_req_post(req, ev); + } + + state->r.in.new_password = talloc_strdup(state, + request->data.chauthtok.newpass); + if (tevent_req_nomem(state->r.in.new_password, req)) { + return tevent_req_post(req, ev); + } + + subreq = dcerpc_wbint_PamAuthChangePassword_r_send(state, + global_event_context(), + dom_child_handle(contact_domain), + &state->r); + if (tevent_req_nomem(subreq, req)) { + return tevent_req_post(req, ev); + } + tevent_req_set_callback(subreq, winbindd_pam_chauthtok_done, req); + return req; +} + +static void winbindd_pam_chauthtok_done(struct tevent_req *subreq) +{ + struct tevent_req *req = tevent_req_callback_data( + subreq, struct tevent_req); + struct winbindd_pam_chauthtok_state *state = tevent_req_data( + req, struct winbindd_pam_chauthtok_state); + NTSTATUS status; + + status = dcerpc_wbint_PamAuthChangePassword_r_recv(subreq, state); + TALLOC_FREE(subreq); + if (tevent_req_nterror(req, status)) { + return; + } + + tevent_req_done(req); +} + +NTSTATUS winbindd_pam_chauthtok_recv(struct tevent_req *req, + struct winbindd_response *response) +{ + struct winbindd_pam_chauthtok_state *state = tevent_req_data( + req, struct winbindd_pam_chauthtok_state); + NTSTATUS status = NT_STATUS_OK; + + if (tevent_req_is_nterror(req, &status)) { + set_auth_errors(response, status); + return status; + } + + response->result = WINBINDD_PENDING; + + set_auth_errors(response, state->r.out.result); + if (*state->r.out.dominfo != NULL) { + fill_in_password_policy(response, *state->r.out.dominfo); + } + response->data.auth.reject_reason = *state->r.out.reject_reason; + + if (state->r.in.flags & WBFLAG_PAM_CACHED_LOGIN) { + + /* Update the single sign-on memory creds. */ + status = winbindd_replace_memory_creds( + state->r.in.user, state->r.in.new_password); + + DEBUG(10, ("winbindd_replace_memory_creds returned %s\n", + nt_errstr(status))); + + /* + * When we login from gdm or xdm and password expires, + * we change password, but there are no memory + * credentials. So, winbindd_replace_memory_creds() + * returns NT_STATUS_OBJECT_NAME_NOT_FOUND. This is + * not a failure. --- BoYang + */ + if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) { + status = NT_STATUS_OK; + } + } + + return NT_STATUS(response->data.auth.nt_status); +} |