/** BEGIN COPYRIGHT BLOCK * Copyright (C) 2001 Sun Microsystems, Inc. Used by permission. * Copyright (C) 2005 Red Hat, Inc. * All rights reserved. * END COPYRIGHT BLOCK **/ /* opshared.c - functions shared between regular and internal operations */ #include "slap.h" #include "index_subsys.h" /* helper functions */ static void compute_limits (Slapi_PBlock *pb); /* attributes that no clients are allowed to add or modify */ static char *protected_attrs_all [] = { PSEUDO_ATTR_UNHASHEDUSERPASSWORD, NULL }; static char *pwpolicy_lock_attrs_all [] = { "passwordRetryCount", "retryCountResetTime", "accountUnlockTime", NULL}; /* Forward declarations */ static void compute_limits (Slapi_PBlock *pb); static int send_results (Slapi_PBlock *pb, int send_result, int *nentries); static int process_entry(Slapi_PBlock *pb, Slapi_Entry *e, int send_result); int op_shared_is_allowed_attr (const char *attr_name, int replicated_op) { int i; slapdFrontendConfig_t *slapdFrontendConfig = getFrontendConfig(); /* check list of attributes that no client is allowed to specify */ for (i = 0; protected_attrs_all[i]; i ++) { if (strcasecmp (attr_name, protected_attrs_all[i]) == 0) { /* this attribute is not allowed */ return 0; } } /* ONREPL - should allow backends to plugin here to specify attributes that are not allowed */ if (!replicated_op) { /* * check to see if attribute is marked as one clients can't modify */ struct asyntaxinfo *asi; int no_user_mod = 0; asi = attr_syntax_get_by_name( attr_name ); if ( NULL != asi && 0 != ( asi->asi_flags & SLAPI_ATTR_FLAG_NOUSERMOD )) { /* this attribute is not allowed */ no_user_mod = 1; } attr_syntax_return( asi ); if ( no_user_mod ) { return( 0 ); } } else if (!slapdFrontendConfig->pw_is_global_policy) { /* check list of password policy attributes for locking accounts */ for (i = 0; pwpolicy_lock_attrs_all[i]; i ++) { if (strcasecmp (attr_name, pwpolicy_lock_attrs_all[i]) == 0) { /* this attribute is not allowed */ return 0; } } } /* this attribute is ok */ return 1; } static ps_service_fn_ptr ps_service_fn = NULL; void do_ps_service(Slapi_Entry *e, Slapi_Entry *eprev, int chgtype, int chgnum) { if (NULL == ps_service_fn) { if (get_entry_point(ENTRY_POINT_PS_SERVICE, (caddr_t *)(&ps_service_fn)) < 0) { return; } } (ps_service_fn)(e, eprev, chgtype, chgnum); } void modify_update_last_modified_attr(Slapi_PBlock *pb, Slapi_Mods *smods) { char buf[20]; struct berval bv; struct berval *bvals[2]; time_t curtime; struct tm utm; Operation *op; LDAPDebug(LDAP_DEBUG_TRACE, "modify_update_last_modified_attr\n", 0, 0, 0); slapi_pblock_get(pb, SLAPI_OPERATION, &op); bvals[0] = &bv; bvals[1] = NULL; /* fill in modifiersname */ if (slapi_sdn_isempty(&op->o_sdn)) { bv.bv_val = ""; bv.bv_len = strlen(bv.bv_val); } else { bv.bv_val = (char*)slapi_sdn_get_dn(&op->o_sdn); bv.bv_len = strlen(bv.bv_val); } slapi_mods_add_modbvps(smods, LDAP_MOD_REPLACE | LDAP_MOD_BVALUES, "modifiersname", bvals); /* fill in modifytimestamp */ curtime = current_time(); #ifdef _WIN32 { struct tm *pt; pt = gmtime(&curtime); memcpy(&utm, pt, sizeof(struct tm)); } #else gmtime_r(&curtime, &utm); #endif strftime(buf, sizeof(buf), "%Y%m%d%H%M%SZ", &utm); bv.bv_val = buf; bv.bv_len = strlen(bv.bv_val); slapi_mods_add_modbvps(smods, LDAP_MOD_REPLACE | LDAP_MOD_BVALUES, "modifytimestamp", bvals); } /* * Returns: 0 - if the operation is successful * < 0 - if operation fails. * Note that an operation is considered "failed" if a result is sent * directly to the client when send_result is 0. */ void op_shared_search (Slapi_PBlock *pb, int send_result) { char *base, *fstr; int scope; Slapi_Backend *be = NULL; Slapi_Backend *be_single = NULL; Slapi_Backend *be_list[BE_LIST_SIZE]; Slapi_Entry *referral_list[BE_LIST_SIZE]; char ebuf[ BUFSIZ ]; char attrlistbuf[ 1024 ], *attrliststr, **attrs = NULL; int rc = 0; int internal_op; Slapi_DN sdn; Slapi_Operation *operation; Slapi_Entry *referral = NULL; char errorbuf[BUFSIZ]; int nentries,pnentries; int flag_search_base_found = 0; int flag_no_such_object = 0; int flag_referral = 0; int flag_psearch = 0; int err_code = LDAP_SUCCESS; LDAPControl **ctrlp; struct berval *ctl_value = NULL; int iscritical = 0; char * be_name = NULL; int index = 0; be_list[0] = NULL; referral_list[0] = NULL; /* get search parameters */ slapi_pblock_get(pb, SLAPI_SEARCH_TARGET, &base); slapi_pblock_get(pb, SLAPI_SEARCH_SCOPE, &scope); slapi_pblock_get(pb, SLAPI_SEARCH_STRFILTER, &fstr); slapi_pblock_get(pb, SLAPI_SEARCH_ATTRS, &attrs); slapi_pblock_get (pb, SLAPI_OPERATION, &operation); internal_op= operation_is_flag_set(operation, OP_FLAG_INTERNAL); flag_psearch = operation_is_flag_set(operation, OP_FLAG_PS); slapi_sdn_init_dn_byref(&sdn, base); if (operation_is_flag_set(operation,OP_FLAG_ACTION_LOG_ACCESS)) { char *fmtstr; #define SLAPD_SEARCH_FMTSTR_BASE "conn=%d op=%d SRCH base=\"%s\" scope=%d " #define SLAPD_SEARCH_FMTSTR_BASE_INT "conn=%s op=%d SRCH base=\"%s\" scope=%d " #define SLAPD_SEARCH_FMTSTR_REMAINDER " attrs=%s%s\n" PR_ASSERT(fstr); if ( strlen(fstr) > 1024 ) { /* * slapi_log_access() throws away log lines that are longer than * 2048 characters, so we limit the filter string to 1024 (better * to log something rather than nothing) */ if ( !internal_op ) { fmtstr = SLAPD_SEARCH_FMTSTR_BASE "filter=\"%.1024s...\"" SLAPD_SEARCH_FMTSTR_REMAINDER; } else { fmtstr = SLAPD_SEARCH_FMTSTR_BASE_INT "filter=\"%.1024s...\"" SLAPD_SEARCH_FMTSTR_REMAINDER; } } else { if ( !internal_op ) { fmtstr = SLAPD_SEARCH_FMTSTR_BASE "filter=\"%s\"" SLAPD_SEARCH_FMTSTR_REMAINDER; } else { fmtstr = SLAPD_SEARCH_FMTSTR_BASE_INT "filter=\"%s\"" SLAPD_SEARCH_FMTSTR_REMAINDER; } } if ( NULL == attrs ) { attrliststr = "ALL"; } else { strarray2str( attrs, attrlistbuf, sizeof( attrlistbuf ), 1 /* include quotes */ ); attrliststr = attrlistbuf; } if ( !internal_op ) { slapi_log_access(LDAP_DEBUG_STATS, fmtstr, pb->pb_conn->c_connid, pb->pb_op->o_opid, escape_string(slapi_sdn_get_dn (&sdn), ebuf), scope, fstr, attrliststr, flag_psearch ? " options=persistent" : ""); } else { slapi_log_access(LDAP_DEBUG_ARGS, fmtstr, LOG_INTERNAL_OP_CON_ID, LOG_INTERNAL_OP_OP_ID, escape_string(slapi_sdn_get_dn (&sdn), ebuf), scope, fstr, attrliststr, flag_psearch ? " options=persistent" : ""); } } slapi_pblock_set(pb, SLAPI_SEARCH_TARGET, (void*)slapi_sdn_get_ndn (&sdn)); /* target spec is used to decide which plugins are applicable for the operation */ operation_set_target_spec (pb->pb_op, &sdn); /* this is time to check if mapping tree specific control * was used to specify that we want to parse only * one backend */ slapi_pblock_get(pb, SLAPI_REQCONTROLS, &ctrlp); if (NULL != ctrlp) { if (slapi_control_present(ctrlp, MTN_CONTROL_USE_ONE_BACKEND_EXT_OID, &ctl_value, &iscritical)) { /* this control is the smart version of MTN_CONTROL_USE_ONE_BACKEND_OID, * it works out for itself what back end is required (thereby relieving * the client of working out which backend it needs) by looking at the * base of the search if no value is supplied */ if((ctl_value->bv_len != 0) && ctl_value->bv_val) { be_name = ctl_value->bv_val; } else { /* we don't need no steenkin values */ Slapi_Backend *searchbe = slapi_be_select( &sdn ); if(searchbe && searchbe != defbackend_get_backend()) { be_name = slapi_be_get_name(searchbe); } } } else { if (slapi_control_present(ctrlp, MTN_CONTROL_USE_ONE_BACKEND_OID, &ctl_value, &iscritical)) { if ((ctl_value->bv_len == 0) || (ctl_value->bv_val == NULL)) { rc = -1; send_ldap_result(pb, LDAP_PROTOCOL_ERROR, NULL, NULL, 0, NULL); goto free_and_return_nolock; } else { be_name = ctl_value->bv_val; if (be_name == NULL) { rc = -1; send_ldap_result(pb, LDAP_PROTOCOL_ERROR, NULL, NULL, 0, NULL); goto free_and_return_nolock; } } } } if ( slapi_control_present (ctrlp, LDAP_CONTROL_GET_EFFECTIVE_RIGHTS, &ctl_value, &iscritical) ) { operation->o_flags |= OP_FLAG_GET_EFFECTIVE_RIGHTS; } } if (be_name == NULL) { /* no specific backend was requested, use the mapping tree */ err_code = slapi_mapping_tree_select_all(pb, be_list, referral_list, errorbuf); if (((err_code != LDAP_SUCCESS) && (err_code != LDAP_OPERATIONS_ERROR) && (err_code != LDAP_REFERRAL)) || ((err_code == LDAP_OPERATIONS_ERROR) && ((be_list == NULL) || be_list[0] == NULL))) { send_ldap_result(pb, err_code, NULL, errorbuf, 0, NULL); rc = -1; goto free_and_return; } if (be_list[0] != NULL) { index = 0; while (be_list[index] && be_list[index+1]) index++; be = be_list[index]; } else be = NULL; } else { /* specific backend be_name was requested, use slapi_be_select_by_instance_name */ be_single = be = slapi_be_select_by_instance_name(be_name); if (be_single) slapi_be_Rlock(be_single); be_list[0] = NULL; referral_list[0] = NULL; referral = NULL; } slapi_pblock_set(pb, SLAPI_BACKEND_COUNT, &index); if (be) { slapi_pblock_set(pb, SLAPI_BACKEND, be); /* adjust time and size limits */ compute_limits (pb); /* call the pre-search plugins. if they succeed, call the backend search function. then call the post-search plugins. */ /* ONREPL - should regular plugin be called for internal searches ? */ if (plugin_call_plugins(pb, SLAPI_PLUGIN_PRE_SEARCH_FN) == 0) { slapi_pblock_set(pb, SLAPI_PLUGIN, be->be_database); set_db_default_result_handlers(pb); /* Now would be a good time to call the search rewriters for computed attrs */ rc = compute_rewrite_search_filter(pb); switch (rc) { case 1: /* A rewriter says that we should refuse to perform this search. The potential exists that we will refuse to perform a search which we were going to refer, perhaps to a server which would be willing to perform the search. That's bad. The rewriter could be clever enough to spot this and do the right thing though. */ send_ldap_result(pb, LDAP_UNWILLING_TO_PERFORM, NULL, "Search not supported", 0, NULL); rc = -1; goto free_and_return; case -2: /* memory was allocated */ /* take note of any changes */ slapi_pblock_get(pb, SLAPI_SEARCH_TARGET, &base); slapi_pblock_get(pb, SLAPI_SEARCH_SCOPE, &scope); slapi_sdn_set_dn_byref(&sdn, base); break; case -1: case 0: /* OK */ break; case 2: /* Operations error */ send_ldap_result(pb, LDAP_OPERATIONS_ERROR, NULL, "search rewriter", 0, NULL); rc = -1; goto free_and_return; } } else { /* * A pre-operation plugin handled this search. Grab the return code * (it may have been set by a plugin) and return. * * In DS 5.x, the following two lines of code did not exist, which * means a pre-search function might return a non-zero value (which * indicates that a result was returned to the client) but the code * below would execute the search anyway. This was a regression from * the documented plugin API behavior (and from DS 3.x and 4.x). */ slapi_pblock_get(pb, SLAPI_PLUGIN_OPRETURN, &rc); goto free_and_return; } } /* PAR: now filters have been rewritten, we can assign plugins to work on them */ index_subsys_assign_filter_decoders(pb); nentries = 0; rc = -1; /* zero backends would mean failure */ while (be) { const Slapi_DN * be_suffix; if (be->be_search == NULL) { send_ldap_result(pb, LDAP_UNWILLING_TO_PERFORM, NULL, "Function not implemented", 0, NULL); rc = -1; goto free_and_return; } pnentries = 0; /* the backends returns no such object when a * search is attempted in a node above their nsslapd-suffix * this is correct but a bit annoying when a backends * is below another backend because in that case the * such searches should sometimes succeed * To allow this we therefore have to change the * SLAPI_SEARCH_TARGET parameter in the pblock * * Also when we climb down the mapping tree we have to * change ONE-LEVEL searches to BASE */ /* that's mean we only support one suffix per backend */ be_suffix = slapi_be_getsuffix(be, 0); /* be_suffix null means that we are searching the default backend * -> don't change the search parameters in pblock */ if (be_suffix != NULL) { if ((be_name == NULL) && (scope == LDAP_SCOPE_ONELEVEL)) { /* one level searches * - depending on the suffix of the backend we might have to * do a one level search or a base search * - we might also have to change the search target */ if (slapi_sdn_isparent(&sdn, be_suffix) || (slapi_sdn_get_ndn_len(&sdn) == 0)) { int tmp_scope = LDAP_SCOPE_BASE; slapi_pblock_set(pb, SLAPI_SEARCH_SCOPE, &tmp_scope); slapi_pblock_set(pb, SLAPI_SEARCH_TARGET, (void *)slapi_sdn_get_ndn(be_suffix)); } else if (slapi_sdn_issuffix(&sdn, be_suffix)) { int tmp_scope = LDAP_SCOPE_ONELEVEL; slapi_pblock_set(pb, SLAPI_SEARCH_SCOPE, &tmp_scope); slapi_pblock_set(pb, SLAPI_SEARCH_TARGET, (void *)slapi_sdn_get_ndn (&sdn)); } else goto next_be; } /* subtree searches : * if the search was started above the backend suffix * - temporarily set the SLAPI_SEARCH_TARGET to the * base of the node so that we don't get a NO SUCH OBJECT error * - do not change the scope */ if (scope == LDAP_SCOPE_SUBTREE) { if (slapi_sdn_issuffix(be_suffix, &sdn)) { slapi_pblock_set(pb, SLAPI_SEARCH_TARGET, (void *)slapi_sdn_get_ndn(be_suffix)); } else slapi_pblock_set(pb, SLAPI_SEARCH_TARGET, (void *)slapi_sdn_get_ndn(&sdn)); } } slapi_pblock_set(pb, SLAPI_BACKEND, be); slapi_pblock_set(pb, SLAPI_PLUGIN, be->be_database); slapi_pblock_set(pb, SLAPI_SEARCH_RESULT_SET, NULL); /* ONREPL - we need to be able to tell the backend not to send results directly */ rc = (*be->be_search)(pb); switch (rc) { int err; case 1: /* backend successfully sent result to the client */ rc = SLAPI_FAIL_GENERAL; /* fall through */ case -1: /* an error occurred */ slapi_pblock_get(pb, SLAPI_RESULT_CODE, &err); if (err == LDAP_NO_SUCH_OBJECT) { /* may be the object exist somewhere else * wait the end of the loop to send back this error */ flag_no_such_object = 1; break; } else { /* for error other than LDAP_NO_SUCH_OBJECT * the error has already been sent * stop the search here */ goto free_and_return; } /* when rc == SLAPI_FAIL_DISKFULL this case is executed */ case SLAPI_FAIL_DISKFULL: operation_out_of_disk_space(); goto free_and_return; case 0: /* search was successful and we need to send the result */ flag_search_base_found++; rc = send_results (pb, 1, &pnentries); /* if rc != 0 an error occurred while sending back the entries * to the LDAP client * LDAP error should already have been sent to the client * stop the search, free and return */ if (rc != 0) goto free_and_return; break; } nentries += pnentries; next_be: if (be_list[0] == NULL) { be = NULL; } else { index--; if (index>=0) be = be_list[index]; else be = NULL; } } /* if referrals were sent back by the mapping tree * add them to the list of referral in the pblock instead * of searching the backend */ index = 0; while ((referral = referral_list[index++]) != NULL) { slapi_pblock_set(pb, SLAPI_BACKEND, NULL); if (err_code == LDAP_REFERRAL) { send_referrals_from_entry(pb,referral); goto free_and_return; } else { if (process_entry(pb, referral, 1)) { flag_referral++; } else { /* Manage DSA was set, referral must be sent as an entry */ int attrsonly; char **attrs = NULL; slapi_pblock_get(pb, SLAPI_SEARCH_ATTRS, &attrs); slapi_pblock_get(pb, SLAPI_SEARCH_ATTRSONLY, &attrsonly); slapi_pblock_set(pb, SLAPI_SEARCH_RESULT_ENTRY, referral); switch (send_ldap_search_entry(pb, referral, NULL, attrs, attrsonly)) { case 0: flag_search_base_found++; nentries++; break; case 1: /* entry not sent */ case -1: /* connection closed */ break; } } } } if (flag_search_base_found || flag_referral) { rc = 0; } /* ONREPL - we currently call postop only if operation is successful; We should always send result and pass error code to the plugin */ if (rc == 0) { plugin_call_plugins(pb, SLAPI_PLUGIN_POST_SEARCH_FN); } else { plugin_call_plugins(pb, SLAPI_PLUGIN_POST_SEARCH_FAIL_FN); } if (send_result) { if (rc == 0) { /* at least one backend returned something and there was no critical error * from the LDAP client point of view the search was successful */ struct berval **urls = NULL; slapi_pblock_get(pb, SLAPI_SEARCH_REFERRALS, &urls); send_ldap_result(pb, err_code, NULL, NULL, nentries, urls); } else if (flag_no_such_object) { /* there was at least 1 backend that was called to process * the operation and all backends returned NO SUCH OBJECTS */ slapi_send_ldap_result_from_pb(pb); } else { /* No backend was found in the mapping tree to process * the operation : return NO SUCH OBJECT */ send_ldap_result(pb, LDAP_NO_SUCH_OBJECT, NULL, NULL, 0, NULL); } } else { /* persistent search: ignore error locating base entry */ rc = 0; } free_and_return: if ((be_list[0] != NULL) || (referral_list[0] != NULL)) slapi_mapping_tree_free_all(be_list, referral_list); else if (be_single) slapi_be_Unlock(be_single); free_and_return_nolock: slapi_pblock_set(pb, SLAPI_SEARCH_TARGET, base); slapi_pblock_set(pb, SLAPI_PLUGIN_OPRETURN, &rc); index_subsys_filter_decoders_done(pb); slapi_sdn_done(&sdn); } /* Returns 1 if this processing on this entry is finished * and doesn't need to be sent. */ static int process_entry(Slapi_PBlock *pb, Slapi_Entry *e, int send_result) { int managedsait; Slapi_Attr *a=NULL; int numValues=0, i; if (!send_result) { /* server requested that we don't send results to the client, for instance, in case of a persistent search */ return 1; } /* ONREPL - check if the entry should be referred (because of the copyingFrom) */ /* * If this is a referral, and the managedsait control is not present, * arrange for a referral to be sent. For v2 connections, * the referrals are just squirreled away and sent with the * final result. For v3, the referrals are sent in separate LDAP messages. */ slapi_pblock_get(pb, SLAPI_MANAGEDSAIT, &managedsait); if (!managedsait && slapi_entry_attr_find(e, "ref", &a)== 0) { /* to fix 522189: when rootDSE, don't interpret attribute ref as a referral entry */ if ( slapi_is_rootdse(slapi_entry_get_dn_const(e)) ) return 0; /* more to do for this entry, e.g., send it back to the client */ /* end fix */ slapi_attr_get_numvalues(a, &numValues ); if (numValues == 0) { char ebuf[ BUFSIZ ]; LDAPDebug(LDAP_DEBUG_ANY, "null ref in (%s)\n", escape_string(slapi_entry_get_dn_const(e), ebuf), 0, 0); } else { Slapi_Value *val=NULL; struct berval **refscopy=NULL; struct berval **urls, **tmpUrls=NULL; tmpUrls=(struct berval **) slapi_ch_malloc((numValues + 1) * sizeof(struct berval*)); for ( i = slapi_attr_first_value(a, &val); i != -1; i = slapi_attr_next_value(a, i, &val)) { tmpUrls[i]=(struct berval*)slapi_value_get_berval(val); } tmpUrls[numValues]=NULL; refscopy = ref_adjust(pb, tmpUrls, slapi_entry_get_sdn_const(e), 1); slapi_pblock_get(pb, SLAPI_SEARCH_REFERRALS, &urls); send_ldap_referral(pb, e, refscopy, &urls); slapi_pblock_set(pb, SLAPI_SEARCH_REFERRALS, urls); if (NULL != refscopy) { ber_bvecfree(refscopy); refscopy = NULL; } if( NULL != tmpUrls) { slapi_ch_free( (void **)&tmpUrls ); } } return 1; /* done with this entry */ } return 0; } #if 0 /* Loops through search entries and sends them to the client. * returns -1 on error, 0 if result packet was sent or 1 if * result packet wasn't sent */ static int iterate_with_lookahead(Slapi_PBlock *pb, Slapi_Backend *be, int send_result, int *pnentries) { int rc; int attrsonly; int done = 0; Slapi_Entry *e; void *backend_info_ptr; Slapi_Entry *next_e; void *next_backend_info_ptr; char **attrs = NULL; int send_result_status = 0; slapi_pblock_get(pb, SLAPI_SEARCH_ATTRS, &attrs); slapi_pblock_get(pb, SLAPI_SEARCH_ATTRSONLY, &attrsonly); /* setup for the loop */ rc = be->be_next_search_entry_ext(pb, 1); if (rc < 0) { /* * Some exceptional condition occurred. Results * have been sent, so we're finished. */ if (rc == SLAPI_FAIL_DISKFULL) { operation_out_of_disk_space(); } return -1; } slapi_pblock_get(pb, SLAPI_SEARCH_RESULT_ENTRY, &next_e); slapi_pblock_get(pb, SLAPI_SEARCH_RESULT_ENTRY_EXT, &next_backend_info_ptr); if (NULL == next_e) { /* no entries */ done = 1; } backend_info_ptr = NULL; /* Done setting up the loop, now here it comes */ while (!done) { /* Allow the backend to free the entry we just finished using */ /* It is ok to call this when backend_info_ptr is NULL */ be->be_entry_release(pb, backend_info_ptr); e = next_e; backend_info_ptr = next_backend_info_ptr; rc = be->be_next_search_entry_ext(pb, 1); if (rc < 0) { /* * Some exceptional condition occurred. Results * have been sent, so we're finished. */ if (rc == SLAPI_FAIL_DISKFULL) { operation_out_of_disk_space(); } return -1; } else { slapi_pblock_get(pb, SLAPI_SEARCH_RESULT_ENTRY, &next_e); slapi_pblock_get(pb, SLAPI_SEARCH_RESULT_ENTRY_EXT, &next_backend_info_ptr); if (next_e == NULL) { /* no more entries */ done = 1; } } if (process_entry(pb, e, send_result)) { /* shouldn't send this entry */ continue; } /* * It's a regular entry, or it's a referral and * managedsait control is on. In either case, send the entry. */ if (done) { struct berval **urls = NULL; /* Send the entry and the result at the same time */ slapi_pblock_get(pb, SLAPI_SEARCH_REFERRALS, &urls); rc = send_ldap_search_entry_ext(pb, e, NULL, attrs, attrsonly, 1, (*pnentries)+1, urls); if (rc == 1) { /* this means we didn't have access to the entry. Since the * entry was not sent, we need to send the done packet. */ send_result_status = 1; } } else { /* Send the entry */ rc = send_ldap_search_entry(pb, e, NULL, attrs, attrsonly); } switch (rc) { case 0: /* entry sent ok */ (*pnentries)++; slapi_pblock_set(pb, SLAPI_NENTRIES, pnentries); break; case 1: /* entry not sent */ break; case -1: /* connection closed */ /* * mark the operation as abandoned so the backend * next entry function gets called again and has * a chance to clean things up. */ pb->pb_op->o_status = SLAPI_OP_STATUS_ABANDONED; break; } } be->be_entry_release(pb, backend_info_ptr); if (*pnentries == 0 || send_result_status) { /* We didn't send the result done message so the caller * must send it */ return 1; } else { /* The result message has been sent */ return 0; } } #endif /* Loops through search entries and sends them to the client. * returns -1 on error or 1 if result packet wasn't sent. * This function never returns 0 because it doesn't send * the result packet back with the last entry like * iterate_with_lookahead trys to do. */ static int iterate(Slapi_PBlock *pb, Slapi_Backend *be, int send_result, int *pnentries) { int rc; int attrsonly; int done = 0; Slapi_Entry *e; char **attrs = NULL; slapi_pblock_get(pb, SLAPI_SEARCH_ATTRS, &attrs); slapi_pblock_get(pb, SLAPI_SEARCH_ATTRSONLY, &attrsonly); *pnentries = 0; while (!done) { rc = be->be_next_search_entry(pb); if (rc < 0) { /* * Some exceptional condition occurred. Results have been sent, so we're finished. */ if (rc == SLAPI_FAIL_DISKFULL) { operation_out_of_disk_space(); } return -1; } else { slapi_pblock_get(pb, SLAPI_SEARCH_RESULT_ENTRY, &e); if (e == NULL) { /* no more entries */ done = 1; continue; } } if (process_entry(pb, e, send_result)) { /* shouldn't send this entry */ continue; } /* * It's a regular entry, or it's a referral and * managedsait control is on. In either case, send * the entry. */ switch (send_ldap_search_entry(pb, e, NULL, attrs, attrsonly)) { case 0: /* entry sent ok */ (*pnentries)++; slapi_pblock_set(pb, SLAPI_NENTRIES, pnentries); break; case 1: /* entry not sent */ break; case -1: /* connection closed */ /* * mark the operation as abandoned so the backend * next entry function gets called again and has * a chance to clean things up. */ pb->pb_op->o_status = SLAPI_OP_STATUS_ABANDONED; break; } } return 1; } static int timelimit_reslimit_handle = -1; static int sizelimit_reslimit_handle = -1; /* * Register size and time limit with the binder-based resource limits * subsystem. A SLAPI_RESLIMIT_STATUS_... code is returned. */ int search_register_reslimits( void ) { int rc1, rc2; rc1 = slapi_reslimit_register( SLAPI_RESLIMIT_TYPE_INT, "nsSizeLimit" , &sizelimit_reslimit_handle ); rc2 = slapi_reslimit_register( SLAPI_RESLIMIT_TYPE_INT, "nsTimeLimit", &timelimit_reslimit_handle ); if ( rc1 != SLAPI_RESLIMIT_STATUS_SUCCESS ) { return( rc1 ); } else { return( rc2 ); } } /* * Compute size and time limits based on the connection (bind identity). * Binder-based resource limits get top priority, followed by those associated * with the backend we are using. * * If the binder is the root DN and there is nothing in the root DN's entry * to say otherwise, no limits are used. Otherwise, the lower of the limit * that was sent in the LDAP request and that available based on the * connection bind identity or configured backend limit is used. */ static void compute_limits (Slapi_PBlock *pb) { int timelimit, sizelimit; int requested_timelimit, max_timelimit, requested_sizelimit, max_sizelimit; int isroot; int isCertAuth; Slapi_ComponentId *component_id = NULL; Slapi_Backend *be; slapi_pblock_get (pb, SLAPI_SEARCH_TIMELIMIT, &requested_timelimit); slapi_pblock_get (pb, SLAPI_SEARCH_SIZELIMIT, &requested_sizelimit); slapi_pblock_get (pb, SLAPI_REQUESTOR_ISROOT, &isroot); slapi_pblock_get (pb, SLAPI_BACKEND, &be); /* If the search belongs to the client authentication process, take the value at * nsslapd-timelimit as the actual time limit. */ slapi_pblock_get (pb, SLAPI_PLUGIN_IDENTITY, &component_id); if (component_id) { isCertAuth = (! strcasecmp(component_id->sci_component_name, COMPONENT_CERT_AUTH) ) ? 1 : 0; if (isCertAuth) { timelimit = config_get_timelimit(); goto set_timelimit; } } /* * Compute the time limit. */ if ( slapi_reslimit_get_integer_limit( pb->pb_conn, timelimit_reslimit_handle, &max_timelimit ) != SLAPI_RESLIMIT_STATUS_SUCCESS ) { /* * no limit associated with binder/connection or some other error * occurred. use the default maximum. */ if ( isroot ) { max_timelimit = -1; /* no limit */ } else { max_timelimit = be->be_timelimit; } } if ( requested_timelimit == 0 ) { timelimit = ( max_timelimit == -1 ) ? -1 : max_timelimit; } else if ( max_timelimit == -1 || requested_timelimit < max_timelimit ) { timelimit = requested_timelimit; } else { timelimit = max_timelimit; } set_timelimit: slapi_pblock_set(pb, SLAPI_SEARCH_TIMELIMIT, &timelimit); /* * Compute the size limit. */ if ( slapi_reslimit_get_integer_limit( pb->pb_conn, sizelimit_reslimit_handle, &max_sizelimit ) != SLAPI_RESLIMIT_STATUS_SUCCESS ) { /* * no limit associated with binder/connection or some other error * occurred. use the default maximum. */ if ( isroot ) { max_sizelimit = -1; /* no limit */ } else { max_sizelimit = be->be_sizelimit; } } if ( requested_sizelimit == 0 ) { sizelimit = ( max_sizelimit == -1 ) ? -1 : max_sizelimit; } else if ( max_sizelimit == -1 || requested_sizelimit < max_sizelimit ) { sizelimit = requested_sizelimit; } else { sizelimit = max_sizelimit; } slapi_pblock_set(pb, SLAPI_SEARCH_SIZELIMIT, &sizelimit); LDAPDebug( LDAP_DEBUG_TRACE, "=> compute_limits: sizelimit=%d, timelimit=%d\n", sizelimit, timelimit, 0 ); } /* Iterates through results and send them to the client. * Returns 0 if successful and -1 otherwise */ static int send_results (Slapi_PBlock *pb, int send_result, int * nentries) { Slapi_Backend *be; int rc; slapi_pblock_get (pb, SLAPI_BACKEND, &be); if (be->be_next_search_entry == NULL) { /* we need to send the result, but the function to iterate through the result set is not implemented */ /* ONREPL - log error */ send_ldap_result(pb, LDAP_UNWILLING_TO_PERFORM, NULL, "Search not supported", 0, NULL); return -1; } /* Iterate through the returned result set */ if (be->be_next_search_entry_ext != NULL) { /* The iterate look ahead is causing a whole mess with the ACL. ** the entries are now visiting the ACL land in a random way ** and not the ordered way it was before. Until we figure out ** let's not change the behavior. ** ** Don't use iterate_with_lookahead because it sends the result * in the same times as the entry and this can cause failure * of the mapping tree scanning algorithme * if (getFrontendConfig()->result_tweak) * { * rc = iterate_with_lookahead(pb, be, send_result, nentries); * } * else */ rc = iterate(pb, be, send_result, nentries); } else { rc = iterate(pb, be, send_result, nentries); } switch(rc) { case -1: /* an error occured */ case 0 : /* everything is ok - result is sent */ /* If this happens we are dead but hopefully iterate * never sends the result itself */ break; case 1: /* everything is ok - don't send the result */ rc = 0; } return rc; } void op_shared_log_error_access (Slapi_PBlock *pb, const char *type, const char *dn, const char *msg) { char ebuf[BUFSIZ]; slapi_log_access( LDAP_DEBUG_STATS, "conn=%d op=%d %s dn=\"%s\", %s\n", ( pb->pb_conn ? pb->pb_conn->c_connid : 0), ( pb->pb_op ? pb->pb_op->o_opid : 0), type, escape_string( dn, ebuf ), msg ? msg : "" ); }