/* SSSD Async LDAP Helper routines Copyright (C) Simo Sorce 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 . */ #include "db/sysdb.h" #include "providers/ldap/sdap_async.h" #include "util/util.h" /* ==LDAP-Memory-Handling================================================= */ static int lmsg_destructor(void *mem) { ldap_msgfree((LDAPMessage *)mem); return 0; } static int sdap_msg_attach(TALLOC_CTX *memctx, LDAPMessage *msg) { void *h; if (!msg) return EINVAL; h = sss_mem_attach(memctx, msg, lmsg_destructor); if (!h) return ENOMEM; return EOK; } /* ==sdap-hanlde-utility-functions======================================== */ static inline void sdap_handle_release(struct sdap_handle *sh); static int sdap_handle_destructor(void *mem); static struct sdap_handle *sdap_handle_create(TALLOC_CTX *memctx) { struct sdap_handle *sh; sh = talloc_zero(memctx, struct sdap_handle); if (!sh) return NULL; talloc_set_destructor((TALLOC_CTX *)sh, sdap_handle_destructor); return sh; } static int sdap_handle_destructor(void *mem) { struct sdap_handle *sh = talloc_get_type(mem, struct sdap_handle); sdap_handle_release(sh); return 0; } static inline void sdap_handle_release(struct sdap_handle *sh) { DEBUG(8, ("Trace: sh[%p], connected[%d], ops[%p], fde[%p], ldap[%p]\n", sh, (int)sh->connected, sh->ops, sh->fde, sh->ldap)); if (sh->connected) { struct sdap_op *op; talloc_zfree(sh->fde); while (sh->ops) { op = sh->ops; op->callback(op, NULL, EIO, op->data); talloc_free(op); } ldap_unbind_ext(sh->ldap, NULL, NULL); sh->connected = false; sh->ldap = NULL; sh->ops = NULL; } } static int get_fd_from_ldap(LDAP *ldap, int *fd) { int ret; ret = ldap_get_option(ldap, LDAP_OPT_DESC, fd); if (ret != LDAP_OPT_SUCCESS) { DEBUG(1, ("Failed to get fd from ldap!!\n")); *fd = -1; return EIO; } return EOK; } /* ==Parse-Results-And-Handle-Disconnections============================== */ static void sdap_process_message(struct tevent_context *ev, struct sdap_handle *sh, LDAPMessage *msg); static void sdap_process_result(struct tevent_context *ev, void *pvt); static void sdap_process_next_reply(struct tevent_context *ev, struct tevent_timer *te, struct timeval tv, void *pvt); static void sdap_ldap_result(struct tevent_context *ev, struct tevent_fd *fde, uint16_t flags, void *pvt) { sdap_process_result(ev, pvt); } static void sdap_ldap_next_result(struct tevent_context *ev, struct tevent_timer *te, struct timeval tv, void *pvt) { sdap_process_result(ev, pvt); } static void sdap_process_result(struct tevent_context *ev, void *pvt) { struct sdap_handle *sh = talloc_get_type(pvt, struct sdap_handle); struct timeval no_timeout = {0, 0}; struct tevent_timer *te; LDAPMessage *msg; int ret; DEBUG(8, ("Trace: sh[%p], connected[%d], ops[%p], fde[%p], ldap[%p]\n", sh, (int)sh->connected, sh->ops, sh->fde, sh->ldap)); if (!sh->connected || !sh->ldap) { DEBUG(2, ("ERROR: LDAP connection is not connected!\n")); return; } ret = ldap_result(sh->ldap, LDAP_RES_ANY, 0, &no_timeout, &msg); if (ret == 0) { /* this almost always means we have reached the end of * the list of received messages */ DEBUG(8, ("Trace: ldap_result found nothing!\n")); return; } if (ret == -1) { DEBUG(4, ("ldap_result gave -1, something bad happend!\n")); sdap_handle_release(sh); return; } /* We don't know if this will be the last result. * * important: we must do this before actually processing the message * because the message processing might even free the sdap_handler * so it must be the last operation. * FIXME: use tevent_immediate/tevent_queues, when avilable */ memset(&no_timeout, 0, sizeof(struct timeval)); te = tevent_add_timer(ev, sh, no_timeout, sdap_ldap_next_result, sh); if (!te) { DEBUG(1, ("Failed to add critical timer to fetch next result!\n")); } /* now process this message */ sdap_process_message(ev, sh, msg); } /* process a messgae calling the right operation callback. * msg is completely taken care of (including freeeing it) * NOTE: this function may even end up freeing the sdap_handle * so sdap_hanbdle must not be used after this function is called */ static void sdap_process_message(struct tevent_context *ev, struct sdap_handle *sh, LDAPMessage *msg) { struct sdap_msg *reply; struct sdap_op *op; int msgid; int msgtype; int ret; msgid = ldap_msgid(msg); if (msgid == -1) { DEBUG(2, ("can't fire callback, message id invalid!\n")); ldap_msgfree(msg); return; } msgtype = ldap_msgtype(msg); for (op = sh->ops; op; op = op->next) { if (op->msgid == msgid) break; } if (op == NULL) { DEBUG(2, ("Unmatched msgid, discarding message (type: %0x)\n", msgtype)); ldap_msgfree(msg); return; } /* shouldn't happen */ if (op->done) { DEBUG(2, ("Operation [%p] already handled (type: %0x)\n", op, msgtype)); ldap_msgfree(msg); return; } switch (msgtype) { case LDAP_RES_SEARCH_ENTRY: /* go and process entry */ break; case LDAP_RES_SEARCH_REFERENCE: /* more ops to come with this msgid */ /* just ignore */ ldap_msgfree(msg); return; case LDAP_RES_BIND: case LDAP_RES_SEARCH_RESULT: case LDAP_RES_MODIFY: case LDAP_RES_ADD: case LDAP_RES_DELETE: case LDAP_RES_MODDN: case LDAP_RES_COMPARE: case LDAP_RES_EXTENDED: case LDAP_RES_INTERMEDIATE: /* no more results expected with this msgid */ op->done = true; break; default: /* unkwon msg type ?? */ DEBUG(1, ("Couldn't figure out the msg type! [%0x]\n", msgtype)); ldap_msgfree(msg); return; } reply = talloc_zero(op, struct sdap_msg); if (!reply) { ldap_msgfree(msg); ret = ENOMEM; } else { reply->msg = msg; ret = sdap_msg_attach(reply, msg); if (ret != EOK) { ldap_msgfree(msg); talloc_zfree(reply); } } if (op->list) { /* list exist, queue it */ op->last->next = reply; op->last = reply; } else { /* create list, then call callback */ op->list = op->last = reply; /* must be the last operation as it may end up freeing all memory * including all ops handlers */ op->callback(op, reply, ret, op->data); } } static void sdap_unlock_next_reply(struct sdap_op *op) { struct timeval no_timeout = {0, 0}; struct tevent_timer *te; op->list = op->list->next; /* if there are still replies to parse, queue a new operation */ if (op->list) { te = tevent_add_timer(op->ev, op, no_timeout, sdap_process_next_reply, op); if (!te) { DEBUG(1, ("Failed to add critical timer for next reply!\n")); op->callback(op, NULL, EFAULT, op->data); } } } static void sdap_process_next_reply(struct tevent_context *ev, struct tevent_timer *te, struct timeval tv, void *pvt) { struct sdap_op *op = talloc_get_type(pvt, struct sdap_op); op->callback(op, op->list, EOK, op->data); } static int sdap_install_ldap_callbacks(struct sdap_handle *sh, struct tevent_context *ev) { int fd; int ret; ret = get_fd_from_ldap(sh->ldap, &fd); if (ret) return ret; sh->fde = tevent_add_fd(ev, sh, fd, TEVENT_FD_READ, sdap_ldap_result, sh); if (!sh->fde) return ENOMEM; DEBUG(8, ("Trace: sh[%p], connected[%d], ops[%p], fde[%p], ldap[%p]\n", sh, (int)sh->connected, sh->ops, sh->fde, sh->ldap)); return EOK; } /* ==LDAP-Operations-Helpers============================================== */ static int sdap_op_destructor(void *mem) { struct sdap_op *op = (struct sdap_op *)mem; DLIST_REMOVE(op->sh->ops, op); if (op->done) return 0; /* we don't check the result here, if a message was really abandoned, * hopefully the server will get an abandon. * If the operation was already fully completed, this is going to be * just a noop */ ldap_abandon_ext(op->sh->ldap, op->msgid, NULL, NULL); return 0; } static void sdap_op_timeout(struct tevent_req *req) { struct sdap_op *op = tevent_req_callback_data(req, struct sdap_op); /* should never happen, but just in case */ if (op->done) { DEBUG(2, ("Timeout happened after op was finished !?\n")); return; } /* signal the caller that we have a timeout */ op->callback(op, NULL, ETIME, op->data); /* send back to the server an abandon (see destructor) and free the op */ talloc_free(op); } static int sdap_op_add(TALLOC_CTX *memctx, struct tevent_context *ev, struct sdap_handle *sh, int msgid, sdap_op_callback_t *callback, void *data, int timeout, struct sdap_op **_op) { struct sdap_op *op; op = talloc_zero(memctx, struct sdap_op); if (!op) return ENOMEM; op->sh = sh; op->msgid = msgid; op->callback = callback; op->data = data; op->ev = ev; /* check if we need to set a timeout */ if (timeout) { struct tevent_req *req; struct timeval tv; tv = tevent_timeval_current(); tv = tevent_timeval_add(&tv, timeout, 0); /* allocate on op, so when it get freed the timeout is removed */ req = tevent_wakeup_send(op, ev, tv); if (!req) { talloc_zfree(op); return ENOMEM; } tevent_req_set_callback(req, sdap_op_timeout, op); } DLIST_ADD(sh->ops, op); talloc_set_destructor((TALLOC_CTX *)op, sdap_op_destructor); *_op = op; return EOK; } /* ==Connect-to-LDAP-Server=============================================== */ struct sdap_connect_state { struct tevent_context *ev; struct sdap_options *opts; struct sdap_handle *sh; struct sdap_op *op; struct sdap_msg *reply; int result; }; static void sdap_connect_done(struct sdap_op *op, struct sdap_msg *reply, int error, void *pvt); struct tevent_req *sdap_connect_send(TALLOC_CTX *memctx, struct tevent_context *ev, struct sdap_options *opts, bool use_start_tls) { struct tevent_req *req; struct sdap_connect_state *state; struct timeval tv; int ver; int lret; int ret = EOK; int msgid; req = tevent_req_create(memctx, &state, struct sdap_connect_state); if (!req) return NULL; state->reply = talloc(state, struct sdap_msg); if (!state->reply) { talloc_zfree(req); return NULL; } state->ev = ev; state->opts = opts; state->sh = sdap_handle_create(state); if (!state->sh) { talloc_zfree(req); return NULL; } /* Initialize LDAP handler */ lret = ldap_initialize(&state->sh->ldap, opts->basic[SDAP_URI].value); if (lret != LDAP_SUCCESS) { DEBUG(1, ("ldap_initialize failed: %s\n", ldap_err2string(ret))); goto fail; } /* Force ldap version to 3 */ ver = LDAP_VERSION3; lret = ldap_set_option(state->sh->ldap, LDAP_OPT_PROTOCOL_VERSION, &ver); if (lret != LDAP_OPT_SUCCESS) { DEBUG(1, ("Failed to set ldap version to 3\n")); goto fail; } /* Set Network Timeout */ tv.tv_sec = opts->network_timeout; tv.tv_usec = 0; lret = ldap_set_option(state->sh->ldap, LDAP_OPT_NETWORK_TIMEOUT, &tv); if (lret != LDAP_OPT_SUCCESS) { DEBUG(1, ("Failed to set network timeout to %d\n", opts->network_timeout)); goto fail; } /* Set Default Timeout */ tv.tv_sec = opts->opt_timeout; tv.tv_usec = 0; lret = ldap_set_option(state->sh->ldap, LDAP_OPT_TIMEOUT, &tv); if (lret != LDAP_OPT_SUCCESS) { DEBUG(1, ("Failed to set default timeout to %d\n", opts->opt_timeout)); goto fail; } /* if we do not use start_tls the connection is not really connected yet * just fake an async procedure and leave connection to the bind call */ if (!use_start_tls) { tevent_req_post(req, ev); return req; } DEBUG(4, ("Executing START TLS\n")); lret = ldap_start_tls(state->sh->ldap, NULL, NULL, &msgid); if (lret != LDAP_SUCCESS) { DEBUG(3, ("ldap_start_tls failed: [%s]", ldap_err2string(ret))); goto fail; } state->sh->connected = true; ret = sdap_install_ldap_callbacks(state->sh, state->ev); if (ret) goto fail; /* FIXME: get timeouts from configuration, for now 5 secs. */ ret = sdap_op_add(state, ev, state->sh, msgid, sdap_connect_done, req, 5, &state->op); if (ret) { DEBUG(1, ("Failed to set up operation!\n")); goto fail; } return req; fail: if (ret) { tevent_req_error(req, ret); } else { if (lret == LDAP_SERVER_DOWN) { tevent_req_error(req, EAGAIN); } else { tevent_req_error(req, EIO); } } tevent_req_post(req, ev); return req; } static void sdap_connect_done(struct sdap_op *op, struct sdap_msg *reply, int error, void *pvt) { struct tevent_req *req = talloc_get_type(pvt, struct tevent_req); struct sdap_connect_state *state = tevent_req_data(req, struct sdap_connect_state); char *errmsg; int ret; if (error) { tevent_req_error(req, error); return; } state->reply = talloc_steal(state, reply); ret = ldap_parse_result(state->sh->ldap, state->reply->msg, &state->result, NULL, &errmsg, NULL, NULL, 0); if (ret != LDAP_SUCCESS) { DEBUG(2, ("ldap_parse_result failed (%d)\n", state->op->msgid)); tevent_req_error(req, EIO); return; } DEBUG(3, ("START TLS result: %s(%d), %s\n", ldap_err2string(state->result), state->result, errmsg)); /* FIXME: take care that ldap_install_tls might block */ ret = ldap_install_tls(state->sh->ldap); if (ret != LDAP_SUCCESS) { DEBUG(1, ("ldap_install_tls failed.\n")); state->result = ret; tevent_req_error(req, EIO); return; } tevent_req_done(req); } int sdap_connect_recv(struct tevent_req *req, TALLOC_CTX *memctx, struct sdap_handle **sh) { struct sdap_connect_state *state = tevent_req_data(req, struct sdap_connect_state); enum tevent_req_state tstate; uint64_t err; if (tevent_req_is_error(req, &tstate, &err)) { /* if tstate shows in progress, it is because * we did not ask to perform tls, just pretend all is fine */ if (tstate != TEVENT_REQ_IN_PROGRESS) { return err; } } *sh = talloc_steal(memctx, state->sh); if (!*sh) { return ENOMEM; } return EOK; } /* ==Simple-Bind========================================================== */ struct simple_bind_state { struct tevent_context *ev; struct sdap_handle *sh; const char *user_dn; struct berval *pw; struct sdap_op *op; struct sdap_msg *reply; int result; }; static void simple_bind_done(struct sdap_op *op, struct sdap_msg *reply, int error, void *pvt); static struct tevent_req *simple_bind_send(TALLOC_CTX *memctx, struct tevent_context *ev, struct sdap_handle *sh, const char *user_dn, struct berval *pw) { struct tevent_req *req; struct simple_bind_state *state; int ret = EOK; int msgid; req = tevent_req_create(memctx, &state, struct simple_bind_state); if (!req) return NULL; state->reply = talloc(state, struct sdap_msg); if (!state->reply) { talloc_zfree(req); return NULL; } state->ev = ev; state->sh = sh; state->user_dn = user_dn; state->pw = pw; DEBUG(4, ("Executing simple bind as: %s\n", state->user_dn)); ret = ldap_sasl_bind(state->sh->ldap, state->user_dn, LDAP_SASL_SIMPLE, state->pw, NULL, NULL, &msgid); if (ret == -1 || msgid == -1) { DEBUG(1, ("ldap_bind failed\n")); goto fail; } DEBUG(8, ("ldap simple bind sent, msgid = %d\n", msgid)); if (!sh->connected) { sh->connected = true; ret = sdap_install_ldap_callbacks(sh, ev); if (ret) goto fail; } /* FIXME: get timeouts from configuration, for now 5 secs. */ ret = sdap_op_add(state, ev, sh, msgid, simple_bind_done, req, 5, &state->op); if (ret) { DEBUG(1, ("Failed to set up operation!\n")); goto fail; } return req; fail: if (ret == LDAP_SERVER_DOWN) { tevent_req_error(req, EAGAIN); } else { tevent_req_error(req, EIO); } tevent_req_post(req, ev); return req; } static void simple_bind_done(struct sdap_op *op, struct sdap_msg *reply, int error, void *pvt) { struct tevent_req *req = talloc_get_type(pvt, struct tevent_req); struct simple_bind_state *state = tevent_req_data(req, struct simple_bind_state); char *errmsg; int ret; if (error) { tevent_req_error(req, error); return; } state->reply = talloc_steal(state, reply); ret = ldap_parse_result(state->sh->ldap, state->reply->msg, &state->result, NULL, &errmsg, NULL, NULL, 0); if (ret != LDAP_SUCCESS) { DEBUG(2, ("ldap_parse_result failed (%d)\n", state->op->msgid)); tevent_req_error(req, EIO); return; } DEBUG(3, ("Bind result: %s(%d), %s\n", ldap_err2string(state->result), state->result, errmsg)); tevent_req_done(req); } static int simple_bind_recv(struct tevent_req *req, int *ldaperr) { struct simple_bind_state *state = tevent_req_data(req, struct simple_bind_state); enum tevent_req_state tstate; uint64_t err; if (tevent_req_is_error(req, &tstate, &err)) { *ldaperr = LDAP_OTHER; return -1; } *ldaperr = state->result; return 0; } /* ==Authenticaticate-User-by-DN========================================== */ struct sdap_auth_state { const char *user_dn; struct berval pw; int result; }; static void sdap_auth_done(struct tevent_req *subreq); struct tevent_req *sdap_auth_send(TALLOC_CTX *memctx, struct tevent_context *ev, struct sdap_handle *sh, const char *user_dn, const char *password) { struct tevent_req *req, *subreq; struct sdap_auth_state *state; req = tevent_req_create(memctx, &state, struct sdap_auth_state); if (!req) return NULL; state->user_dn = user_dn; if (password) { state->pw.bv_val = discard_const(password); state->pw.bv_len = strlen(password); } else { state->pw.bv_val = NULL; state->pw.bv_len = 0; } subreq = simple_bind_send(state, ev, sh, user_dn, &state->pw); if (!subreq) { tevent_req_error(req, EFAULT); return tevent_req_post(req, ev); } tevent_req_set_callback(subreq, sdap_auth_done, req); return req; } static void sdap_auth_done(struct tevent_req *subreq) { struct tevent_req *req = tevent_req_callback_data(subreq, struct tevent_req); struct sdap_auth_state *state = tevent_req_data(req, struct sdap_auth_state); int ret; ret = simple_bind_recv(subreq, &state->result); if (ret == -1) { tevent_req_error(req, EFAULT); return; } tevent_req_done(req); } int sdap_auth_recv(struct tevent_req *req, enum sdap_result *result) { struct sdap_auth_state *state = tevent_req_data(req, struct sdap_auth_state); enum tevent_req_state tstate; uint64_t err; if (tevent_req_is_error(req, &tstate, &err)) { *result = SDAP_ERROR; return err; } switch (state->result) { case LDAP_SUCCESS: *result = SDAP_AUTH_SUCCESS; break; case LDAP_INVALID_CREDENTIALS: *result = SDAP_AUTH_FAILED; break; default: *result = SDAP_ERROR; } return EOK; } /* ==Save-User-Entry====================================================== */ struct sdap_save_user_state { struct tevent_context *ev; struct sysdb_handle *handle; struct sdap_options *opts; struct sdap_handle *sh; struct sss_domain_info *dom; struct sysdb_attrs *attrs; }; static void sdap_save_user_done(struct tevent_req *subreq); /* FIXME: support non legacy */ /* FIXME: support storing additional attributes */ static struct tevent_req *sdap_save_user_send(TALLOC_CTX *memctx, struct tevent_context *ev, struct sysdb_handle *handle, struct sdap_options *opts, struct sss_domain_info *dom, struct sdap_handle *sh, struct sdap_msg *entry) { struct tevent_req *req, *subreq; struct sdap_save_user_state *state; struct ldb_message_element *el; int ret; const char *name; const char *pwd; const char *gecos; const char *homedir; const char *shell; long int l; uid_t uid; gid_t gid; req = tevent_req_create(memctx, &state, struct sdap_save_user_state); if (!req) return NULL; state->ev = ev; state->handle = handle; state->sh = sh; state->dom = dom; state->opts = opts; ret = sdap_parse_user(state, state->opts, state->sh, entry, &state->attrs, NULL); if (ret) goto fail; ret = sysdb_attrs_get_el(state->attrs, opts->user_map[SDAP_AT_USER_NAME].sys_name, &el); if (ret) goto fail; if (el->num_values == 0) { ret = EINVAL; goto fail; } name = (const char *)el->values[0].data; ret = sysdb_attrs_get_el(state->attrs, opts->user_map[SDAP_AT_USER_PWD].sys_name, &el); if (ret) goto fail; if (el->num_values == 0) pwd = NULL; else pwd = (const char *)el->values[0].data; ret = sysdb_attrs_get_el(state->attrs, opts->user_map[SDAP_AT_USER_GECOS].sys_name, &el); if (ret) goto fail; if (el->num_values == 0) gecos = NULL; else gecos = (const char *)el->values[0].data; ret = sysdb_attrs_get_el(state->attrs, opts->user_map[SDAP_AT_USER_HOME].sys_name, &el); if (ret) goto fail; if (el->num_values == 0) homedir = NULL; else homedir = (const char *)el->values[0].data; ret = sysdb_attrs_get_el(state->attrs, opts->user_map[SDAP_AT_USER_SHELL].sys_name, &el); if (ret) goto fail; if (el->num_values == 0) shell = NULL; else shell = (const char *)el->values[0].data; ret = sysdb_attrs_get_el(state->attrs, opts->user_map[SDAP_AT_USER_UID].sys_name, &el); if (ret) goto fail; errno = 0; l = strtol((const char *)el->values[0].data, NULL, 0); if (errno) { ret = EINVAL; goto fail; } uid = l; ret = sysdb_attrs_get_el(state->attrs, opts->user_map[SDAP_AT_USER_GID].sys_name, &el); if (ret) goto fail; errno = 0; l = strtol((const char *)el->values[0].data, NULL, 0); if (errno) { ret = EINVAL; goto fail; } gid = l; DEBUG(6, ("Storing info for user %s\n", name)); subreq = sysdb_store_user_send(state, state->ev, state->handle, state->dom, name, pwd, uid, gid, gecos, homedir, shell); if (!subreq) { ret = ENOMEM; goto fail; } tevent_req_set_callback(subreq, sdap_save_user_done, req); return req; fail: tevent_req_error(req, ret); tevent_req_post(req, ev); return req; } static void sdap_save_user_done(struct tevent_req *subreq) { struct tevent_req *req = tevent_req_callback_data(subreq, struct tevent_req); int ret; ret = sysdb_store_user_recv(subreq); talloc_zfree(subreq); if (ret) { tevent_req_error(req, ret); return; } tevent_req_done(req); } int sdap_save_user_recv(struct tevent_req *req) { enum tevent_req_state tstate; uint64_t err; if (tevent_req_is_error(req, &tstate, &err)) { if (!err) return EIO; return err; } return EOK; } /* ==Save-Group-Entry===================================================== */ struct sdap_save_group_state { struct tevent_context *ev; struct sysdb_handle *handle; struct sdap_options *opts; struct sdap_handle *sh; struct sss_domain_info *dom; struct sysdb_attrs *attrs; }; static void sdap_save_group_done(struct tevent_req *subreq); /* FIXME: support non legacy */ /* FIXME: support storing additional attributes */ static struct tevent_req *sdap_save_group_send(TALLOC_CTX *memctx, struct tevent_context *ev, struct sysdb_handle *handle, struct sdap_options *opts, struct sss_domain_info *dom, struct sdap_handle *sh, struct sdap_msg *entry) { struct tevent_req *req, *subreq; struct sdap_save_group_state *state; struct ldb_message_element *el; int i, ret; char *name; const char **members; long int l; gid_t gid; req = tevent_req_create(memctx, &state, struct sdap_save_group_state); if (!req) return NULL; state->ev = ev; state->handle = handle; state->sh = sh; state->dom = dom; state->opts = opts; ret = sdap_parse_group(state, state->opts, state->sh, entry, &state->attrs, NULL); if (ret) goto fail; ret = sysdb_attrs_get_el(state->attrs, opts->group_map[SDAP_AT_GROUP_NAME].sys_name, &el); if (ret) goto fail; if (el->num_values == 0) { ret = EINVAL; goto fail; } name = (char *)el->values[0].data; ret = sysdb_attrs_get_el(state->attrs, opts->group_map[SDAP_AT_GROUP_MEMBER].sys_name, &el); if (ret) goto fail; if (el->num_values == 0) members = NULL; else { members = talloc_array(state, const char *, el->num_values +1); if (!members) { ret = ENOMEM; goto fail; } for (i = 0; i < el->num_values; i++) { members[i] = (char *)el->values[i].data; } members[i] = NULL; } ret = sysdb_attrs_get_el(state->attrs, opts->group_map[SDAP_AT_GROUP_GID].sys_name, &el); if (ret) goto fail; errno = 0; l = strtol((const char *)el->values[0].data, NULL, 0); if (errno) { ret = EINVAL; goto fail; } gid = l; DEBUG(6, ("Storing info for group %s\n", name)); subreq = sysdb_store_group_send(state, state->ev, state->handle, state->dom, name, gid, members); if (!subreq) { ret = ENOMEM; goto fail; } tevent_req_set_callback(subreq, sdap_save_group_done, req); return req; fail: tevent_req_error(req, ret); tevent_req_post(req, ev); return req; } static void sdap_save_group_done(struct tevent_req *subreq) { struct tevent_req *req = tevent_req_callback_data(subreq, struct tevent_req); int ret; ret = sysdb_store_group_recv(subreq); talloc_zfree(subreq); if (ret) { tevent_req_error(req, ret); return; } tevent_req_done(req); } int sdap_save_group_recv(struct tevent_req *req) { enum tevent_req_state tstate; uint64_t err; if (tevent_req_is_error(req, &tstate, &err)) { if (!err) return EIO; return err; } return EOK; } /* ==Search-Users-with-filter============================================= */ struct sdap_get_users_state { struct tevent_context *ev; struct sdap_options *opts; struct sdap_handle *sh; struct sss_domain_info *dom; const char **attrs; const char *filter; struct sysdb_handle *handle; struct sdap_op *op; }; static void sdap_get_users_transaction(struct tevent_req *subreq); static void sdap_get_users_done(struct sdap_op *op, struct sdap_msg *reply, int error, void *pvt); static void sdap_get_users_save_done(struct tevent_req *subreq); struct tevent_req *sdap_get_users_send(TALLOC_CTX *memctx, struct tevent_context *ev, struct sss_domain_info *dom, struct sysdb_ctx *sysdb, struct sdap_options *opts, struct sdap_handle *sh, const char **attrs, const char *filter) { struct tevent_req *req, *subreq; struct sdap_get_users_state *state; req = tevent_req_create(memctx, &state, struct sdap_get_users_state); if (!req) return NULL; state->ev = ev; state->opts = opts; state->dom = dom; state->sh = sh; state->filter = filter; state->attrs = attrs; subreq = sysdb_transaction_send(state, state->ev, sysdb); if (!subreq) return NULL; tevent_req_set_callback(subreq, sdap_get_users_transaction, req); return req; } static void sdap_get_users_transaction(struct tevent_req *subreq) { struct tevent_req *req = tevent_req_callback_data(subreq, struct tevent_req); struct sdap_get_users_state *state = tevent_req_data(req, struct sdap_get_users_state); int lret, ret; int msgid; ret = sysdb_transaction_recv(subreq, state, &state->handle); talloc_zfree(subreq); if (ret) { tevent_req_error(req, ret); return; } DEBUG(5, ("calling ldap_search_ext with [%s].\n", state->filter)); lret = ldap_search_ext(state->sh->ldap, state->opts->basic[SDAP_USER_SEARCH_BASE].value, LDAP_SCOPE_SUBTREE, state->filter, discard_const(state->attrs), false, NULL, NULL, NULL, 0, &msgid); if (lret != LDAP_SUCCESS) { DEBUG(3, ("ldap_search_ext failed: %s\n", ldap_err2string(lret))); tevent_req_error(req, EIO); return; } DEBUG(8, ("ldap_search_ext called, msgid = %d\n", msgid)); /* FIXME: get timeouts from configuration, for now 10 minutes */ ret = sdap_op_add(state, state->ev, state->sh, msgid, sdap_get_users_done, req, 600, &state->op); if (ret) { DEBUG(1, ("Failed to set up operation!\n")); tevent_req_error(req, ret); } } static void sdap_get_users_done(struct sdap_op *op, struct sdap_msg *reply, int error, void *pvt) { struct tevent_req *req = talloc_get_type(pvt, struct tevent_req); struct sdap_get_users_state *state = tevent_req_data(req, struct sdap_get_users_state); struct tevent_req *subreq; char *errmsg; int result; int ret; if (error) { tevent_req_error(req, error); return; } switch (ldap_msgtype(reply->msg)) { case LDAP_RES_SEARCH_REFERENCE: /* ignore references for now */ talloc_free(reply); /* unlock the operation so that we can proceed with the next result */ sdap_unlock_next_reply(state->op); break; case LDAP_RES_SEARCH_ENTRY: subreq = sdap_save_user_send(state, state->ev, state->handle, state->opts, state->dom, state->sh, reply); if (!subreq) { tevent_req_error(req, ENOMEM); return; } tevent_req_set_callback(subreq, sdap_get_users_save_done, req); /* attach reply to subreq, * will not be needed anymore once subreq is done */ talloc_steal(subreq, reply); break; case LDAP_RES_SEARCH_RESULT: /* End of the story */ ret = ldap_parse_result(state->sh->ldap, reply->msg, &result, NULL, &errmsg, NULL, NULL, 0); if (ret != LDAP_SUCCESS) { DEBUG(2, ("ldap_parse_result failed (%d)\n", state->op->msgid)); tevent_req_error(req, EIO); return; } DEBUG(3, ("Search result: %s(%d), %s\n", ldap_err2string(result), result, errmsg)); subreq = sysdb_transaction_commit_send(state, state->ev, state->handle); if (!subreq) { tevent_req_error(req, ENOMEM); return; } /* sysdb_transaction_complete will call tevent_req_done(req) */ tevent_req_set_callback(subreq, sysdb_transaction_complete, req); break; default: /* what is going on here !? */ tevent_req_error(req, EIO); return; } } static void sdap_get_users_save_done(struct tevent_req *subreq) { struct tevent_req *req = tevent_req_callback_data(subreq, struct tevent_req); struct sdap_get_users_state *state = tevent_req_data(req, struct sdap_get_users_state); int ret; ret = sdap_save_user_recv(subreq); talloc_zfree(subreq); /* If the configuration has id ranges and the remote user is out * of these ranges we will get back an ERANGE error. In this case * we just ignore the error and go on with the next op */ if (ret && (ret != ERANGE)) { tevent_req_error(req, ret); return; } /* unlock the operation so that we can proceed with the next result */ sdap_unlock_next_reply(state->op); } int sdap_get_users_recv(struct tevent_req *req) { enum tevent_req_state tstate; uint64_t err; if (tevent_req_is_error(req, &tstate, &err)) { if (err) return err; return EIO; } return EOK; } /* ==Search-Groups-with-filter============================================ */ struct sdap_get_groups_state { struct tevent_context *ev; struct sdap_options *opts; struct sdap_handle *sh; struct sss_domain_info *dom; const char **attrs; const char *filter; struct sysdb_handle *handle; struct sdap_op *op; }; static void sdap_get_groups_transaction(struct tevent_req *subreq); static void sdap_get_groups_done(struct sdap_op *op, struct sdap_msg *reply, int error, void *pvt); static void sdap_get_groups_save_done(struct tevent_req *subreq); struct tevent_req *sdap_get_groups_send(TALLOC_CTX *memctx, struct tevent_context *ev, struct sss_domain_info *dom, struct sysdb_ctx *sysdb, struct sdap_options *opts, struct sdap_handle *sh, const char **attrs, const char *filter) { struct tevent_req *req, *subreq; struct sdap_get_groups_state *state; req = tevent_req_create(memctx, &state, struct sdap_get_groups_state); if (!req) return NULL; state->ev = ev; state->opts = opts; state->dom = dom; state->sh = sh; state->filter = filter; state->attrs = attrs; subreq = sysdb_transaction_send(state, state->ev, sysdb); if (!subreq) return NULL; tevent_req_set_callback(subreq, sdap_get_groups_transaction, req); return req; } static void sdap_get_groups_transaction(struct tevent_req *subreq) { struct tevent_req *req = tevent_req_callback_data(subreq, struct tevent_req); struct sdap_get_groups_state *state = tevent_req_data(req, struct sdap_get_groups_state); int ret, lret; int msgid; ret = sysdb_transaction_recv(subreq, state, &state->handle); talloc_zfree(subreq); if (ret) { tevent_req_error(req, ret); return; } DEBUG(5, ("calling ldap_search_ext with [%s].\n", state->filter)); lret = ldap_search_ext(state->sh->ldap, state->opts->basic[SDAP_GROUP_SEARCH_BASE].value, LDAP_SCOPE_SUBTREE, state->filter, discard_const(state->attrs), false, NULL, NULL, NULL, 0, &msgid); if (lret != LDAP_SUCCESS) { DEBUG(3, ("ldap_search_ext failed: %s\n", ldap_err2string(lret))); tevent_req_error(req, EIO); return; } DEBUG(8, ("ldap_search_ext called, msgid = %d\n", msgid)); /* FIXME: get timeouts from configuration, for now 10 minutes */ ret = sdap_op_add(state, state->ev, state->sh, msgid, sdap_get_groups_done, req, 600, &state->op); if (ret) { DEBUG(1, ("Failed to set up operation!\n")); tevent_req_error(req, ret); } } static void sdap_get_groups_done(struct sdap_op *op, struct sdap_msg *reply, int error, void *pvt) { struct tevent_req *req = talloc_get_type(pvt, struct tevent_req); struct sdap_get_groups_state *state = tevent_req_data(req, struct sdap_get_groups_state); struct tevent_req *subreq; char *errmsg; int result; int ret; if (error) { tevent_req_error(req, error); return; } switch (ldap_msgtype(reply->msg)) { case LDAP_RES_SEARCH_REFERENCE: /* ignore references for now */ talloc_free(reply); /* unlock the operation so that we can proceed with the next result */ sdap_unlock_next_reply(state->op); break; case LDAP_RES_SEARCH_ENTRY: subreq = sdap_save_group_send(state, state->ev, state->handle, state->opts, state->dom, state->sh, reply); if (!subreq) { tevent_req_error(req, ENOMEM); return; } tevent_req_set_callback(subreq, sdap_get_groups_save_done, req); /* attach reply to subreq, * will not be needed anymore once subreq is done */ talloc_steal(subreq, reply); break; case LDAP_RES_SEARCH_RESULT: /* End of the story */ ret = ldap_parse_result(state->sh->ldap, reply->msg, &result, NULL, &errmsg, NULL, NULL, 0); if (ret != LDAP_SUCCESS) { DEBUG(2, ("ldap_parse_result failed (%d)\n", state->op->msgid)); tevent_req_error(req, EIO); return; } DEBUG(3, ("Search result: %s(%d), %s\n", ldap_err2string(result), result, errmsg)); subreq = sysdb_transaction_commit_send(state, state->ev, state->handle); if (!subreq) { tevent_req_error(req, ENOMEM); return; } /* sysdb_transaction_complete will call tevent_req_done(req) */ tevent_req_set_callback(subreq, sysdb_transaction_complete, req); break; default: /* what is going on here !? */ tevent_req_error(req, EIO); return; } } static void sdap_get_groups_save_done(struct tevent_req *subreq) { struct tevent_req *req = tevent_req_callback_data(subreq, struct tevent_req); struct sdap_get_groups_state *state = tevent_req_data(req, struct sdap_get_groups_state); int ret; ret = sdap_save_group_recv(subreq); talloc_zfree(subreq); /* If the configuration has id ranges and the remote user is out * of these ranges we will get back an ERANGE error. In this case * we just ignore the error and go on with the next op */ if (ret && (ret != ERANGE)) { tevent_req_error(req, ret); return; } /* unlock the operation so that we can proceed with the next result */ sdap_unlock_next_reply(state->op); } int sdap_get_groups_recv(struct tevent_req *req) { enum tevent_req_state tstate; uint64_t err; if (tevent_req_is_error(req, &tstate, &err)) { if (err) return err; return EIO; } return EOK; } /* ==Initgr-call-(groups-a-user-is-member-of)============================= */ struct sdap_get_initgr_state { struct tevent_context *ev; struct sysdb_ctx *sysdb; struct sdap_options *opts; struct sss_domain_info *dom; struct sdap_handle *sh; const char *name; const char **grp_attrs; const char *filter; struct sysdb_handle *handle; struct sdap_op *op; }; static void sdap_get_initgr_process(struct tevent_req *subreq); static void sdap_get_initgr_transaction(struct tevent_req *subreq); static void sdap_get_initgr_done(struct sdap_op *op, struct sdap_msg *reply, int error, void *pvt); static void sdap_get_initgr_save_done(struct tevent_req *subreq); struct tevent_req *sdap_get_initgr_send(TALLOC_CTX *memctx, struct tevent_context *ev, struct sss_domain_info *dom, struct sysdb_ctx *sysdb, struct sdap_options *opts, struct sdap_handle *sh, const char *name, const char **grp_attrs) { struct tevent_req *req, *subreq; struct sdap_get_initgr_state *state; struct timeval tv = {0, 0}; const char **attrs; int ret; req = tevent_req_create(memctx, &state, struct sdap_get_initgr_state); if (!req) return NULL; state->ev = ev; state->opts = opts; state->sysdb = sysdb; state->dom = dom; state->sh = sh; state->name = name; state->grp_attrs = grp_attrs; switch (opts->schema_type) { case SDAP_SCHEMA_RFC2307: subreq = tevent_wakeup_send(state, ev, tv); if (!subreq) { ret = ENOMEM; goto fail; } tevent_req_set_callback(subreq, sdap_get_initgr_process, req); break; case SDAP_SCHEMA_RFC2307BIS: attrs = talloc_array(state, const char *, 2); if (!attrs) { ret = ENOMEM; goto fail; } attrs[0] = SYSDB_ORIG_DN; attrs[1] = NULL; subreq = sysdb_search_user_by_name_send(state, ev, sysdb, NULL, dom, name, attrs); if (!subreq) { ret = ENOMEM; goto fail; } tevent_req_set_callback(subreq, sdap_get_initgr_process, req); break; default: ret = EINVAL; goto fail; } return req; fail: tevent_req_error(req, EIO); tevent_req_post(req, ev); return req; } static void sdap_get_initgr_process(struct tevent_req *subreq) { struct tevent_req *req = tevent_req_callback_data(subreq, struct tevent_req); struct sdap_get_initgr_state *state = tevent_req_data(req, struct sdap_get_initgr_state); struct ldb_message *msg; const char *user_dn; int ret; switch (state->opts->schema_type) { case SDAP_SCHEMA_RFC2307: if (!tevent_wakeup_recv(subreq)) { tevent_req_error(req, EFAULT); return; } talloc_zfree(subreq); state->filter = talloc_asprintf(state, "(&(%s=%s)(objectclass=%s))", state->opts->group_map[SDAP_AT_GROUP_MEMBER].name, state->name, state->opts->group_map[SDAP_OC_GROUP].name); break; case SDAP_SCHEMA_RFC2307BIS: ret = sysdb_search_user_recv(subreq, state, &msg); talloc_zfree(subreq); if (ret) { tevent_req_error(req, ret); return; } user_dn = ldb_msg_find_attr_as_string(msg, SYSDB_ORIG_DN, NULL); if (!user_dn) { tevent_req_error(req, ENOENT); return; } state->filter = talloc_asprintf(state, "(&(%s=%s)(objectclass=%s))", state->opts->user_map[SDAP_AT_GROUP_MEMBER].name, user_dn, state->opts->user_map[SDAP_OC_GROUP].name); talloc_free(msg); break; default: tevent_req_error(req, EINVAL); return; } if (!state->filter) { tevent_req_error(req, ENOMEM); return; } subreq = sysdb_transaction_send(state, state->ev, state->sysdb); if (!subreq) { tevent_req_error(req, ENOMEM); return; } tevent_req_set_callback(subreq, sdap_get_initgr_transaction, req); } static void sdap_get_initgr_transaction(struct tevent_req *subreq) { struct tevent_req *req = tevent_req_callback_data(subreq, struct tevent_req); struct sdap_get_initgr_state *state = tevent_req_data(req, struct sdap_get_initgr_state); int ret, lret; int msgid; ret = sysdb_transaction_recv(subreq, state, &state->handle); talloc_zfree(subreq); if (ret) { tevent_req_error(req, ret); return; } DEBUG(5, ("calling ldap_search_ext with filter:[%s].\n", state->filter)); lret = ldap_search_ext(state->sh->ldap, state->opts->basic[SDAP_GROUP_SEARCH_BASE].value, LDAP_SCOPE_SUBTREE, state->filter, discard_const(state->grp_attrs), false, NULL, NULL, NULL, 0, &msgid); if (lret != LDAP_SUCCESS) { DEBUG(3, ("ldap_search_ext failed: %s\n", ldap_err2string(lret))); tevent_req_error(req, EIO); return; } DEBUG(8, ("ldap_search_ext called, msgid = %d\n", msgid)); /* FIXME: get timeouts from configuration, for now 10 minutes */ ret = sdap_op_add(state, state->ev, state->sh, msgid, sdap_get_initgr_done, req, 600, &state->op); if (ret) { DEBUG(1, ("Failed to set up operation!\n")); tevent_req_error(req, ret); } } static void sdap_get_initgr_done(struct sdap_op *op, struct sdap_msg *reply, int error, void *pvt) { struct tevent_req *req = talloc_get_type(pvt, struct tevent_req); struct sdap_get_initgr_state *state = tevent_req_data(req, struct sdap_get_initgr_state); struct tevent_req *subreq; char *errmsg; int result; int ret; if (error) { tevent_req_error(req, error); return; } switch (ldap_msgtype(reply->msg)) { case LDAP_RES_SEARCH_REFERENCE: /* ignore references for now */ talloc_free(reply); /* unlock the operation so that we can proceed with the next result */ sdap_unlock_next_reply(state->op); break; case LDAP_RES_SEARCH_ENTRY: subreq = sdap_save_group_send(state, state->ev, state->handle, state->opts, state->dom, state->sh, reply); if (!subreq) { tevent_req_error(req, ENOMEM); return; } tevent_req_set_callback(subreq, sdap_get_initgr_save_done, req); /* attach reply to subreq, * will not be needed anymore once subreq is done */ talloc_steal(subreq, reply); break; case LDAP_RES_SEARCH_RESULT: /* End of the story */ ret = ldap_parse_result(state->sh->ldap, reply->msg, &result, NULL, &errmsg, NULL, NULL, 0); if (ret != LDAP_SUCCESS) { DEBUG(2, ("ldap_parse_result failed (%d)\n", state->op->msgid)); tevent_req_error(req, EIO); return; } DEBUG(3, ("Search result: %s(%d), %s\n", ldap_err2string(result), result, errmsg)); subreq = sysdb_transaction_commit_send(state, state->ev, state->handle); if (!subreq) { tevent_req_error(req, ENOMEM); return; } /* sysdb_transaction_complete will call tevent_req_done(req) */ tevent_req_set_callback(subreq, sysdb_transaction_complete, req); break; default: /* what is going on here !? */ tevent_req_error(req, EIO); return; } } static void sdap_get_initgr_save_done(struct tevent_req *subreq) { struct tevent_req *req = tevent_req_callback_data(subreq, struct tevent_req); struct sdap_get_initgr_state *state = tevent_req_data(req, struct sdap_get_initgr_state); int ret; ret = sdap_save_group_recv(subreq); talloc_zfree(subreq); /* If the configuration has id ranges and the remote user is out * of these ranges we will get back an ERANGE error. In this case * we just ignore the error and go on with the next op */ if (ret && (ret != ERANGE)) { tevent_req_error(req, ret); return; } /* unlock the operation so that we can proceed with the next result */ sdap_unlock_next_reply(state->op); } int sdap_get_initgr_recv(struct tevent_req *req) { enum tevent_req_state tstate; uint64_t err; if (tevent_req_is_error(req, &tstate, &err)) { if (err) return err; return EIO; } return EOK; } struct sdap_exop_modify_passwd_state { struct sdap_handle *sh; struct sdap_op *op; int result; }; static void sdap_exop_modify_passwd_done(struct sdap_op *op, struct sdap_msg *reply, int error, void *pvt); struct tevent_req *sdap_exop_modify_passwd_send(TALLOC_CTX *memctx, struct tevent_context *ev, struct sdap_handle *sh, char *user_dn, char *password, char *new_password) { struct tevent_req *req = NULL; struct sdap_exop_modify_passwd_state *state; int ret; BerElement *ber = NULL; struct berval *bv = NULL; int msgid; req = tevent_req_create(memctx, &state, struct sdap_exop_modify_passwd_state); if (!req) return NULL; state->sh = sh; ber = ber_alloc_t( LBER_USE_DER ); if (ber == NULL) { DEBUG(7, ("ber_alloc_t failed.\n")); talloc_zfree(req); return NULL; } ret = ber_printf( ber, "{tststs}", LDAP_TAG_EXOP_MODIFY_PASSWD_ID, user_dn, LDAP_TAG_EXOP_MODIFY_PASSWD_OLD, password, LDAP_TAG_EXOP_MODIFY_PASSWD_NEW, new_password); if (ret == -1) { DEBUG(1, ("ber_printf failed.\n")); ber_free(ber, 1); talloc_zfree(req); return NULL; } ret = ber_flatten(ber, &bv); ber_free(ber, 1); if (ret == -1) { DEBUG(1, ("ber_flatten failed.\n")); talloc_zfree(req); return NULL; } DEBUG(4, ("Executing extended operation\n")); ret = ldap_extended_operation(state->sh->ldap, LDAP_EXOP_MODIFY_PASSWD, bv, NULL, NULL, &msgid); ber_bvfree(bv); if (ret == -1 || msgid == -1) { DEBUG(1, ("ldap_extended_operation failed\n")); goto fail; } DEBUG(8, ("ldap_extended_operation sent, msgid = %d\n", msgid)); /* FIXME: get timeouts from configuration, for now 5 secs. */ ret = sdap_op_add(state, ev, state->sh, msgid, sdap_exop_modify_passwd_done, req, 5, &state->op); if (ret) { DEBUG(1, ("Failed to set up operation!\n")); goto fail; } return req; fail: tevent_req_error(req, EIO); tevent_req_post(req, ev); return req; } static void sdap_exop_modify_passwd_done(struct sdap_op *op, struct sdap_msg *reply, int error, void *pvt) { struct tevent_req *req = talloc_get_type(pvt, struct tevent_req); struct sdap_exop_modify_passwd_state *state = tevent_req_data(req, struct sdap_exop_modify_passwd_state); char *errmsg; int ret; if (error) { tevent_req_error(req, error); return; } ret = ldap_parse_result(state->sh->ldap, reply->msg, &state->result, NULL, &errmsg, NULL, NULL, 0); if (ret != LDAP_SUCCESS) { DEBUG(2, ("ldap_parse_result failed (%d)\n", state->op->msgid)); tevent_req_error(req, EIO); return; } DEBUG(3, ("ldap_extended_operation result: %s(%d), %s\n", ldap_err2string(state->result), state->result, errmsg)); tevent_req_done(req); } int sdap_exop_modify_passwd_recv(struct tevent_req *req, enum sdap_result *result) { struct sdap_exop_modify_passwd_state *state = tevent_req_data(req, struct sdap_exop_modify_passwd_state); enum tevent_req_state tstate; uint64_t err; *result = SDAP_ERROR; if (tevent_req_is_error(req, &tstate, &err)) { return err; } if (state->result == LDAP_SUCCESS) { *result = SDAP_SUCCESS; } return EOK; }