/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2007 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #pragma ident "%Z%%M% %I% %E% SMI" #include #include #include #include #include #include #include #include #include #include #include #include "ns_sldap.h" #include "ns_internal.h" #include "ns_cache_door.h" #define _NIS_FILTER "nisdomain=*" #define _NIS_DOMAIN "nisdomain" static const char *nis_domain_attrs[] = { _NIS_DOMAIN, (char *)NULL }; static int validate_filter(ns_ldap_cookie_t *cookie); void __ns_ldap_freeEntry(ns_ldap_entry_t *ep) { int j, k = 0; if (ep == NULL) return; if (ep->attr_pair == NULL) { free(ep); return; } for (j = 0; j < ep->attr_count; j++) { if (ep->attr_pair[j] == NULL) continue; if (ep->attr_pair[j]->attrname) free(ep->attr_pair[j]->attrname); if (ep->attr_pair[j]->attrvalue) { for (k = 0; (k < ep->attr_pair[j]->value_count) && (ep->attr_pair[j]->attrvalue[k]); k++) { free(ep->attr_pair[j]->attrvalue[k]); } free(ep->attr_pair[j]->attrvalue); } free(ep->attr_pair[j]); } free(ep->attr_pair); free(ep); } static void _freeControlList(LDAPControl ***ctrls) { LDAPControl **ctrl; if (ctrls == NULL || *ctrls == NULL) return; for (ctrl = *ctrls; *ctrl != NULL; ctrl++) ldap_control_free(*ctrl); free(*ctrls); *ctrls = NULL; } /* * Convert attribute type in a RDN that has an attribute mapping to the * original mappped type. * e.g. * cn<->cn-st and iphostnumber<->iphostnumber-st * cn-st=aaa+iphostnumber-st=10.10.01.01 * is mapped to * cn=aaa+iphostnumber=10.10.01.01 * * Input - service: e.g. hosts, passwd etc. * rdn: RDN * Return: NULL - No attribute mapping in the RDN * Non-NULL - The attribute type(s) in the RDN are mapped and * the memory is allocated for the new rdn. * */ static char * _cvtRDN(const char *service, const char *rdn) { char **attrs, **mapped_attrs, **mapp, *type, *value, *attr; char *new_rdn = NULL; int nAttr = 0, i, attr_mapped, len = 0; /* Break down "type=value\0" pairs. Assume RDN is normalized */ if ((attrs = ldap_explode_rdn(rdn, 0)) == NULL) return (NULL); for (nAttr = 0; attrs[nAttr] != NULL; nAttr++); if ((mapped_attrs = (char **)calloc(nAttr, sizeof (char *))) == NULL) { ldap_value_free(attrs); return (NULL); } attr_mapped = 0; for (i = 0; i < nAttr; i++) { /* Parse type=value pair */ if ((type = strtok_r(attrs[i], "=", &value)) == NULL || value == NULL) goto cleanup; /* Reverse map: e.g. cn-sm -> cn */ mapp = __ns_ldap_getOrigAttribute(service, type); if (mapp != NULL && mapp[0] != NULL) { /* The attribute mapping is found */ type = mapp[0]; attr_mapped = 1; /* "type=value\0" */ len = strlen(type) + strlen(value) + 2; /* Reconstruct type=value pair. A string is allocated */ if ((attr = (char *)calloc(1, len)) == NULL) { __s_api_free2dArray(mapp); goto cleanup; } (void) snprintf(attr, len, "%s=%s", type, value); mapped_attrs[i] = attr; } else { /* * No attribute mapping. attrs[i] is going to be copied * later. Restore "type\0value\0" back to * "type=value\0". */ type[strlen(type)] = '='; } __s_api_free2dArray(mapp); } if (attr_mapped == 0) /* No attribute mapping. Don't bother to reconstruct RDN */ goto cleanup; len = 0; /* Reconstruct RDN from type=value pairs */ for (i = 0; i < nAttr; i++) { if (mapped_attrs[i]) len += strlen(mapped_attrs[i]); else len += strlen(attrs[i]); /* Add 1 for "+" */ len++; } if ((new_rdn = (char *)calloc(1, ++len)) == NULL) goto cleanup; for (i = 0; i < nAttr; i++) { if (i > 0) /* Add seperator */ (void) strlcat(new_rdn, "+", len); if (mapped_attrs[i]) (void) strlcat(new_rdn, mapped_attrs[i], len); else (void) strlcat(new_rdn, attrs[i], len); } cleanup: ldap_value_free(attrs); if (mapped_attrs) { if (attr_mapped) { for (i = 0; i < nAttr; i++) { if (mapped_attrs[i]) free(mapped_attrs[i]); } } free(mapped_attrs); } return (new_rdn); } /* * Convert attribute type in a DN that has an attribute mapping to the * original mappped type. * e.g * The mappings are cn<->cn-sm, iphostnumber<->iphostnumber-sm * * dn: cn-sm=aaa+iphostnumber-sm=9.9.9.9,dc=central,dc=sun,dc=com * is converted to * dn: cn=aaa+iphostnumber=9.9.9.9,dc=central,dc=sun,dc=com * * Input - service: e.g. hosts, passwd etc. * dn: the value of a distinguished name * Return - NULL: error * non-NULL: A converted DN and the memory is allocated */ static char * _cvtDN(const char *service, const char *dn) { char **mapped_rdns; char **rdns, *new_rdn, *new_dn = NULL; int nRdn = 0, i, len = 0, rdn_mapped; if (service == NULL || dn == NULL) return (NULL); if ((rdns = ldap_explode_dn(dn, 0)) == NULL) return (NULL); for (nRdn = 0; rdns[nRdn] != NULL; nRdn++); if ((mapped_rdns = (char **)calloc(nRdn, sizeof (char *))) == NULL) { ldap_value_free(rdns); return (NULL); } rdn_mapped = 0; /* Break down RDNs in a DN */ for (i = 0; i < nRdn; i++) { if ((new_rdn = _cvtRDN(service, rdns[i])) != NULL) { mapped_rdns[i] = new_rdn; rdn_mapped = 1; } } if (rdn_mapped == 0) { /* * No RDN contains any attribute mapping. * Don't bother to reconstruct DN from RDN. Copy DN directly. */ new_dn = strdup(dn); goto cleanup; } /* * Reconstruct dn from RDNs. * Calculate the length first. */ for (i = 0; i < nRdn; i++) { if (mapped_rdns[i]) len += strlen(mapped_rdns[i]); else len += strlen(rdns[i]); /* add 1 for ',' */ len ++; } if ((new_dn = (char *)calloc(1, ++len)) == NULL) goto cleanup; for (i = 0; i < nRdn; i++) { if (i > 0) /* Add seperator */ (void) strlcat(new_dn, ",", len); if (mapped_rdns[i]) (void) strlcat(new_dn, mapped_rdns[i], len); else (void) strlcat(new_dn, rdns[i], len); } cleanup: ldap_value_free(rdns); if (mapped_rdns) { if (rdn_mapped) { for (i = 0; i < nRdn; i++) { if (mapped_rdns[i]) free(mapped_rdns[i]); } } free(mapped_rdns); } return (new_dn); } /* * Convert a single ldap entry from a LDAPMessage * into an ns_ldap_entry structure. * Schema map the entry if specified in flags */ static int __s_api_cvtEntry(LDAP *ld, const char *service, LDAPMessage *e, int flags, ns_ldap_entry_t **ret, ns_ldap_error_t **error) { ns_ldap_entry_t *ep = NULL; ns_ldap_attr_t **ap = NULL; BerElement *ber; char *attr = NULL; char **vals = NULL; char **mapping; char *dn; int nAttrs = 0; int i, j, k = 0; char **gecos_mapping = NULL; int gecos_val_index[3] = { -1, -1, -1}; char errstr[MAXERROR]; int schema_mapping_existed = FALSE; int gecos_mapping_existed = FALSE; int gecos_attr_matched; int auto_service = FALSE; int rc = NS_LDAP_SUCCESS; if (e == NULL || ret == NULL || error == NULL) return (NS_LDAP_INVALID_PARAM); *error = NULL; ep = (ns_ldap_entry_t *)calloc(1, sizeof (ns_ldap_entry_t)); if (ep == NULL) return (NS_LDAP_MEMORY); if (service != NULL && (strncasecmp(service, "auto_", 5) == 0 || strcasecmp(service, "automount") == 0)) auto_service = TRUE; /* * see if schema mapping existed for the given service */ mapping = __ns_ldap_getOrigAttribute(service, NS_HASH_SCHEMA_MAPPING_EXISTED); if (mapping) { schema_mapping_existed = TRUE; __s_api_free2dArray(mapping); mapping = NULL; } else if (auto_service) { /* * If service == auto_* and no * schema mapping found * then try automount * There is certain case that schema mapping exist * but __ns_ldap_getOrigAttribute(service, * NS_HASH_SCHEMA_MAPPING_EXISTED); * returns NULL. * e.g. * NS_LDAP_ATTRIBUTEMAP = automount:automountMapName=AAA * NS_LDAP_OBJECTCLASSMAP = automount:automountMap=MynisMap * NS_LDAP_OBJECTCLASSMAP = automount:automount=MynisObject * * Make a check for schema_mapping_existed here * so later on __s_api_convert_automountmapname won't be called * unnecessarily. It is also used for attribute mapping * and objectclass mapping. */ mapping = __ns_ldap_getOrigAttribute("automount", NS_HASH_SCHEMA_MAPPING_EXISTED); if (mapping) { schema_mapping_existed = TRUE; __s_api_free2dArray(mapping); mapping = NULL; } } nAttrs = 1; /* start with 1 for the DN attr */ for (attr = ldap_first_attribute(ld, e, &ber); attr != NULL; attr = ldap_next_attribute(ld, e, ber)) { nAttrs++; ldap_memfree(attr); attr = NULL; } ber_free(ber, 0); ber = NULL; ep->attr_count = nAttrs; /* * add 1 for "gecos" 1 to N attribute mapping, * just in case it is needed. * ep->attr_count will be updated later if that is true. */ ap = (ns_ldap_attr_t **)calloc(ep->attr_count + 1, sizeof (ns_ldap_attr_t *)); if (ap == NULL) { __ns_ldap_freeEntry(ep); ep = NULL; return (NS_LDAP_MEMORY); } ep->attr_pair = ap; /* DN attribute */ dn = ldap_get_dn(ld, e); ap[0] = (ns_ldap_attr_t *)calloc(1, sizeof (ns_ldap_attr_t)); if (ap[0] == NULL) { ldap_memfree(dn); dn = NULL; __ns_ldap_freeEntry(ep); ep = NULL; return (NS_LDAP_MEMORY); } if ((ap[0]->attrname = strdup("dn")) == NULL) { ldap_memfree(dn); dn = NULL; __ns_ldap_freeEntry(ep); ep = NULL; return (NS_LDAP_INVALID_PARAM); } ap[0]->value_count = 1; if ((ap[0]->attrvalue = (char **) calloc(2, sizeof (char *))) == NULL) { ldap_memfree(dn); dn = NULL; __ns_ldap_freeEntry(ep); ep = NULL; return (NS_LDAP_MEMORY); } if (schema_mapping_existed && ((flags & NS_LDAP_NOT_CVT_DN) == 0)) ap[0]->attrvalue[0] = _cvtDN(service, dn); else ap[0]->attrvalue[0] = strdup(dn); if (ap[0]->attrvalue[0] == NULL) { ldap_memfree(dn); dn = NULL; __ns_ldap_freeEntry(ep); ep = NULL; return (NS_LDAP_MEMORY); } ldap_memfree(dn); dn = NULL; if ((flags & NS_LDAP_NOMAP) == 0 && auto_service && schema_mapping_existed) { rc = __s_api_convert_automountmapname(service, &ap[0]->attrvalue[0], error); if (rc != NS_LDAP_SUCCESS) { __ns_ldap_freeEntry(ep); ep = NULL; return (rc); } } /* other attributes */ for (attr = ldap_first_attribute(ld, e, &ber), j = 1; attr != NULL && j != nAttrs; attr = ldap_next_attribute(ld, e, ber), j++) { /* allocate new attr name */ if ((ap[j] = (ns_ldap_attr_t *) calloc(1, sizeof (ns_ldap_attr_t))) == NULL) { ber_free(ber, 0); ber = NULL; __ns_ldap_freeEntry(ep); ep = NULL; if (gecos_mapping) __s_api_free2dArray(gecos_mapping); gecos_mapping = NULL; return (NS_LDAP_MEMORY); } if ((flags & NS_LDAP_NOMAP) || schema_mapping_existed == FALSE) mapping = NULL; else mapping = __ns_ldap_getOrigAttribute(service, attr); if (mapping == NULL && auto_service && schema_mapping_existed && (flags & NS_LDAP_NOMAP) == 0) /* * if service == auto_* and no schema mapping found * and schema_mapping_existed is TRUE and NS_LDAP_NOMAP * is not set then try automount e.g. * NS_LDAP_ATTRIBUTEMAP = automount:automountMapName=AAA */ mapping = __ns_ldap_getOrigAttribute("automount", attr); if (mapping == NULL) { if ((ap[j]->attrname = strdup(attr)) == NULL) { ber_free(ber, 0); ber = NULL; __ns_ldap_freeEntry(ep); ep = NULL; if (gecos_mapping) __s_api_free2dArray(gecos_mapping); gecos_mapping = NULL; return (NS_LDAP_MEMORY); } } else { /* * for "gecos" 1 to N mapping, * do not remove the mapped attribute, * just create a new gecos attribute * and append it to the end of the attribute list */ if (strcasecmp(mapping[0], "gecos") == 0) { ap[j]->attrname = strdup(attr); gecos_mapping_existed = TRUE; } else ap[j]->attrname = strdup(mapping[0]); if (ap[j]->attrname == NULL) { ber_free(ber, 0); ber = NULL; __ns_ldap_freeEntry(ep); ep = NULL; if (gecos_mapping) __s_api_free2dArray(gecos_mapping); gecos_mapping = NULL; return (NS_LDAP_MEMORY); } /* * 1 to N attribute mapping processing * is only done for "gecos" */ if (strcasecmp(mapping[0], "gecos") == 0) { /* * get attribute mapping for "gecos", * need to know the number and order of the * mapped attributes */ if (gecos_mapping == NULL) { gecos_mapping = __ns_ldap_getMappedAttributes( service, mapping[0]); if (gecos_mapping == NULL || gecos_mapping[0] == NULL) { /* * this should never happens, * syslog the error */ (void) sprintf(errstr, gettext( "Attribute mapping " "inconsistency " "found for attributes " "'%s' and '%s'."), mapping[0], attr); syslog(LOG_ERR, "libsldap: %s", errstr); ber_free(ber, 0); ber = NULL; __ns_ldap_freeEntry(ep); ep = NULL; __s_api_free2dArray(mapping); mapping = NULL; if (gecos_mapping) __s_api_free2dArray( gecos_mapping); gecos_mapping = NULL; return (NS_LDAP_INTERNAL); } } /* * is this attribute the 1st, 2nd, or * 3rd attr in the mapping list? */ gecos_attr_matched = FALSE; for (i = 0; i < 3 && gecos_mapping[i]; i++) { if (gecos_mapping[i] && strcasecmp(gecos_mapping[i], attr) == 0) { gecos_val_index[i] = j; gecos_attr_matched = TRUE; break; } } if (gecos_attr_matched == FALSE) { /* * Not match found. * This should never happens, * syslog the error */ (void) sprintf(errstr, gettext( "Attribute mapping " "inconsistency " "found for attributes " "'%s' and '%s'."), mapping[0], attr); syslog(LOG_ERR, "libsldap: %s", errstr); ber_free(ber, 0); ber = NULL; __ns_ldap_freeEntry(ep); ep = NULL; __s_api_free2dArray(mapping); mapping = NULL; __s_api_free2dArray(gecos_mapping); gecos_mapping = NULL; return (NS_LDAP_INTERNAL); } } __s_api_free2dArray(mapping); mapping = NULL; } if ((vals = ldap_get_values(ld, e, attr)) != NULL) { if ((ap[j]->value_count = ldap_count_values(vals)) == 0) { ldap_value_free(vals); vals = NULL; continue; } else { ap[j]->attrvalue = (char **) calloc(ap[j]->value_count+1, sizeof (char *)); if (ap[j]->attrvalue == NULL) { ber_free(ber, 0); ber = NULL; __ns_ldap_freeEntry(ep); ep = NULL; if (gecos_mapping) __s_api_free2dArray( gecos_mapping); gecos_mapping = NULL; return (NS_LDAP_MEMORY); } } /* map object classes if necessary */ if ((flags & NS_LDAP_NOMAP) == 0 && schema_mapping_existed && ap[j]->attrname && strcasecmp(ap[j]->attrname, "objectclass") == 0) { for (k = 0; k < ap[j]->value_count; k++) { mapping = __ns_ldap_getOrigObjectClass( service, vals[k]); if (mapping == NULL && auto_service) /* * if service == auto_* and no * schema mapping found * then try automount */ mapping = __ns_ldap_getOrigObjectClass( "automount", vals[k]); if (mapping == NULL) { ap[j]->attrvalue[k] = strdup(vals[k]); } else { ap[j]->attrvalue[k] = strdup(mapping[0]); __s_api_free2dArray(mapping); mapping = NULL; } if (ap[j]->attrvalue[k] == NULL) { ber_free(ber, 0); ber = NULL; __ns_ldap_freeEntry(ep); ep = NULL; if (gecos_mapping) __s_api_free2dArray( gecos_mapping); gecos_mapping = NULL; return (NS_LDAP_MEMORY); } } } else { for (k = 0; k < ap[j]->value_count; k++) { if ((ap[j]->attrvalue[k] = strdup(vals[k])) == NULL) { ber_free(ber, 0); ber = NULL; __ns_ldap_freeEntry(ep); ep = NULL; if (gecos_mapping) __s_api_free2dArray( gecos_mapping); gecos_mapping = NULL; return (NS_LDAP_MEMORY); } } } ap[j]->attrvalue[k] = NULL; ldap_value_free(vals); vals = NULL; } ldap_memfree(attr); attr = NULL; } ber_free(ber, 0); ber = NULL; if (gecos_mapping) { __s_api_free2dArray(gecos_mapping); gecos_mapping = NULL; } /* special processing for gecos 1 to up to 3 attribute mapping */ if (schema_mapping_existed && gecos_mapping_existed) { int f = -1; for (i = 0; i < 3; i++) { k = gecos_val_index[i]; /* * f is the index of the first returned * attribute which "gecos" attribute mapped to */ if (k != -1 && f == -1) f = k; if (k != -1 && ap[k]->value_count > 0 && ap[k]->attrvalue[0] && strlen(ap[k]->attrvalue[0]) > 0) { if (k == f) { /* * Create and fill in the last reserved * ap with the data from the "gecos" * mapping attributes */ ap[nAttrs] = (ns_ldap_attr_t *) calloc(1, sizeof (ns_ldap_attr_t)); if (ap[nAttrs] == NULL) { __ns_ldap_freeEntry(ep); ep = NULL; return (NS_LDAP_MEMORY); } ap[nAttrs]->attrvalue = (char **)calloc( 2, sizeof (char *)); if (ap[nAttrs]->attrvalue == NULL) { __ns_ldap_freeEntry(ep); ep = NULL; return (NS_LDAP_MEMORY); } /* add 1 more for a possible "," */ ap[nAttrs]->attrvalue[0] = (char *)calloc( strlen(ap[f]->attrvalue[0]) + 2, 1); if (ap[nAttrs]->attrvalue[0] == NULL) { __ns_ldap_freeEntry(ep); ep = NULL; return (NS_LDAP_MEMORY); } (void) strcpy(ap[nAttrs]->attrvalue[0], ap[f]->attrvalue[0]); ap[nAttrs]->attrname = strdup("gecos"); if (ap[nAttrs]->attrname == NULL) { __ns_ldap_freeEntry(ep); ep = NULL; return (NS_LDAP_MEMORY); } ap[nAttrs]->value_count = 1; ep->attr_count = nAttrs + 1; } else { char *tmp = NULL; /* * realloc to add "," and * ap[k]->attrvalue[0] */ tmp = (char *)realloc( ap[nAttrs]->attrvalue[0], strlen(ap[nAttrs]-> attrvalue[0]) + strlen(ap[k]-> attrvalue[0]) + 2); if (tmp == NULL) { __ns_ldap_freeEntry(ep); ep = NULL; return (NS_LDAP_MEMORY); } ap[nAttrs]->attrvalue[0] = tmp; (void) strcat(ap[nAttrs]->attrvalue[0], ","); (void) strcat(ap[nAttrs]->attrvalue[0], ap[k]->attrvalue[0]); } } } } *ret = ep; return (NS_LDAP_SUCCESS); } static int __s_api_getEntry(ns_ldap_cookie_t *cookie) { ns_ldap_entry_t *curEntry = NULL; int ret; #ifdef DEBUG (void) fprintf(stderr, "__s_api_getEntry START\n"); #endif if (cookie->resultMsg == NULL) { return (NS_LDAP_INVALID_PARAM); } ret = __s_api_cvtEntry(cookie->conn->ld, cookie->service, cookie->resultMsg, cookie->i_flags, &curEntry, &cookie->errorp); if (ret != NS_LDAP_SUCCESS) { return (ret); } if (cookie->result == NULL) { cookie->result = (ns_ldap_result_t *) calloc(1, sizeof (ns_ldap_result_t)); if (cookie->result == NULL) { __ns_ldap_freeEntry(curEntry); curEntry = NULL; return (NS_LDAP_MEMORY); } cookie->result->entry = curEntry; cookie->nextEntry = curEntry; } else { cookie->nextEntry->next = curEntry; cookie->nextEntry = curEntry; } cookie->result->entries_count++; return (NS_LDAP_SUCCESS); } static int __s_api_get_cachemgr_data(const char *type, const char *from, char **to) { union { ldap_data_t s_d; char s_b[DOORBUFFERSIZE]; } space; ldap_data_t *sptr; int ndata; int adata; int rc; #ifdef DEBUG (void) fprintf(stderr, "__s_api_get_cachemgr_data START\n"); #endif if (from == NULL || from[0] == '\0' || to == NULL) return (-1); *to = NULL; (void) memset(space.s_b, 0, DOORBUFFERSIZE); space.s_d.ldap_call.ldap_callnumber = GETCACHE; (void) snprintf(space.s_d.ldap_call.ldap_u.domainname, DOORBUFFERSIZE - sizeof (space.s_d.ldap_call.ldap_callnumber), "%s%s%s", type, DOORLINESEP, from); ndata = sizeof (space); adata = sizeof (ldap_call_t) + strlen(space.s_d.ldap_call.ldap_u.domainname) + 1; sptr = &space.s_d; rc = __ns_ldap_trydoorcall(&sptr, &ndata, &adata); if (rc != SUCCESS) return (-1); else *to = strdup(sptr->ldap_ret.ldap_u.buff); return (NS_LDAP_SUCCESS); } static int __s_api_set_cachemgr_data(const char *type, const char *from, const char *to) { union { ldap_data_t s_d; char s_b[DOORBUFFERSIZE]; } space; ldap_data_t *sptr; int ndata; int adata; int rc; #ifdef DEBUG (void) fprintf(stderr, "__s_api_set_cachemgr_data START\n"); #endif if ((from == NULL) || (from[0] == '\0') || (to == NULL) || (to[0] == '\0')) return (-1); (void) memset(space.s_b, 0, DOORBUFFERSIZE); space.s_d.ldap_call.ldap_callnumber = SETCACHE; (void) snprintf(space.s_d.ldap_call.ldap_u.domainname, DOORBUFFERSIZE - sizeof (space.s_d.ldap_call.ldap_callnumber), "%s%s%s%s%s", type, DOORLINESEP, from, DOORLINESEP, to); ndata = sizeof (space); adata = sizeof (ldap_call_t) + strlen(space.s_d.ldap_call.ldap_u.domainname) + 1; sptr = &space.s_d; rc = __ns_ldap_trydoorcall(&sptr, &ndata, &adata); if (rc != SUCCESS) return (-1); return (NS_LDAP_SUCCESS); } static char * __s_api_remove_rdn_space(char *rdn) { char *tf, *tl, *vf, *vl, *eqsign; /* if no space(s) to remove, return */ if (strchr(rdn, SPACETOK) == NULL) return (rdn); /* if no '=' separator, return */ eqsign = strchr(rdn, '='); if (eqsign == NULL) return (rdn); tf = rdn; tl = eqsign - 1; vf = eqsign + 1; vl = rdn + strlen(rdn) - 1; /* now two strings, type and value */ *eqsign = '\0'; /* remove type's leading spaces */ while (tf < tl && *tf == SPACETOK) tf++; /* remove type's trailing spaces */ while (tf < tl && *tl == SPACETOK) tl--; /* add '=' separator back */ *(++tl) = '='; /* remove value's leading spaces */ while (vf < vl && *vf == SPACETOK) vf++; /* remove value's trailing spaces */ while (vf < vl && *vl == SPACETOK) *vl-- = '\0'; /* move value up if necessary */ if (vf != tl + 1) (void) strcpy(tl + 1, vf); return (tf); } static ns_ldap_cookie_t * init_search_state_machine() { ns_ldap_cookie_t *cookie; ns_config_t *cfg; cookie = (ns_ldap_cookie_t *)calloc(1, sizeof (ns_ldap_cookie_t)); if (cookie == NULL) return (NULL); cookie->state = INIT; /* assign other state variables */ cfg = __s_api_loadrefresh_config(); cookie->connectionId = -1; if (cfg == NULL || cfg->paramList[NS_LDAP_SEARCH_TIME_P].ns_ptype == NS_UNKNOWN) { cookie->search_timeout.tv_sec = NS_DEFAULT_SEARCH_TIMEOUT; } else { cookie->search_timeout.tv_sec = cfg->paramList[NS_LDAP_SEARCH_TIME_P].ns_i; } if (cfg != NULL) __s_api_release_config(cfg); cookie->search_timeout.tv_usec = 0; return (cookie); } static void delete_search_cookie(ns_ldap_cookie_t *cookie) { if (cookie == NULL) return; if (cookie->connectionId > -1) DropConnection(cookie->connectionId, cookie->i_flags); if (cookie->filter) free(cookie->filter); if (cookie->i_filter) free(cookie->i_filter); if (cookie->service) free(cookie->service); if (cookie->sdlist) (void) __ns_ldap_freeSearchDescriptors(&(cookie->sdlist)); if (cookie->result) (void) __ns_ldap_freeResult(&cookie->result); if (cookie->attribute) __s_api_free2dArray(cookie->attribute); if (cookie->errorp) (void) __ns_ldap_freeError(&cookie->errorp); if (cookie->reflist) __s_api_deleteRefInfo(cookie->reflist); if (cookie->basedn) free(cookie->basedn); if (cookie->ctrlCookie) ber_bvfree(cookie->ctrlCookie); _freeControlList(&cookie->p_serverctrls); if (cookie->resultctrl) ldap_controls_free(cookie->resultctrl); free(cookie); } static int get_mapped_filter(ns_ldap_cookie_t *cookie, char **new_filter) { typedef struct filter_mapping_info { char oc_or_attr; char *name_start; char *name_end; char *veq_pos; char *from_name; char *to_name; char **mapping; } filter_mapping_info_t; char *c, *last_copied; char *filter_c, *filter_c_next; char *key, *tail, *head; char errstr[MAXERROR]; int num_eq = 0, num_veq = 0; int in_quote = FALSE; int is_value = FALSE; int i, j, oc_len, len; int at_least_one = FALSE; filter_mapping_info_t **info, *info1; char **mapping; char *service, *filter, *err; int auto_service = FALSE; if (cookie == NULL || new_filter == NULL) return (NS_LDAP_INVALID_PARAM); *new_filter = NULL; service = cookie->service; filter = cookie->filter; /* * count the number of '=' char */ for (c = filter; *c; c++) { if (*c == TOKENSEPARATOR) num_eq++; } if (service != NULL && strncasecmp(service, "auto_", 5) == 0) auto_service = TRUE; /* * See if schema mapping existed for the given service. * If not, just return success. */ mapping = __ns_ldap_getOrigAttribute(service, NS_HASH_SCHEMA_MAPPING_EXISTED); if (mapping == NULL && auto_service) /* * if service == auto_* and no * schema mapping found * then try automount */ mapping = __ns_ldap_getOrigAttribute( "automount", NS_HASH_SCHEMA_MAPPING_EXISTED); if (mapping) __s_api_free2dArray(mapping); else return (NS_LDAP_SUCCESS); /* * no '=' sign, just say OK and return nothing */ if (num_eq == 0) return (NS_LDAP_SUCCESS); /* * Make a copy of the filter string * for saving the name of the objectclasses or * attributes that need to be passed to the * objectclass or attribute mapping functions. * pointer "info->from_name" points to the locations * within this string. * * The input filter string, filter, will be used * to indicate where these names start and end. * pointers "info->name_start" and "info->name_end" * point to locations within the input filter string, * and are used at the end of this function to * merge the original filter data with the * mapped objectclass or attribute names. */ filter_c = strdup(filter); if (filter_c == NULL) return (NS_LDAP_MEMORY); filter_c_next = filter_c; /* * get memory for info arrays */ info = (filter_mapping_info_t **)calloc(num_eq + 1, sizeof (filter_mapping_info_t *)); if (info == NULL) { free(filter_c); return (NS_LDAP_MEMORY); } /* * find valid '=' for further processing, * ignore the "escaped =" (.i.e. "\="), or * "=" in quoted string */ for (c = filter_c; *c; c++) { switch (*c) { case TOKENSEPARATOR: if (!in_quote && !is_value) { info1 = (filter_mapping_info_t *)calloc(1, sizeof (filter_mapping_info_t)); if (!info1) { free(filter_c); for (i = 0; i < num_veq; i++) free(info[i]); free(info); return (NS_LDAP_MEMORY); } info[num_veq] = info1; /* * remember the location of this "=" */ info[num_veq++]->veq_pos = c; /* * skip until the end of the attribute value */ is_value = TRUE; } break; case CPARATOK: /* * mark the end of the attribute value */ if (!in_quote) is_value = FALSE; break; case QUOTETOK: /* * switch on/off the in_quote mode */ in_quote = (in_quote == FALSE); break; case '\\': /* * ignore escape characters * don't skip if next char is '\0' */ if (!in_quote) if (*(++c) == '\0') c--; break; } } /* * for each valid "=" found, get the name to * be mapped */ oc_len = strlen("objectclass"); for (i = 0; i < num_veq; i++) { /* * look at the left side of "=" to see * if assertion is "objectclass=" * or "=" * * first skip spaces before "=". * Note that filter_c_next may not point to the * start of the filter string. For i > 0, * it points to the end of the last name processed + 2 */ for (tail = info[i]->veq_pos; (tail > filter_c_next) && (*(tail - 1) == SPACETOK); tail--) ; /* * mark the end of the left side string (the key) */ *tail = '\0'; info[i]->name_end = tail - filter_c - 1 + filter; /* * find the start of the key */ key = filter_c_next; for (c = tail; filter_c_next <= c; c--) { /* OPARATOK is '(' */ if (*c == OPARATOK || *c == SPACETOK) { key = c + 1; break; } } info[i]->name_start = key - filter_c + filter; if ((key + oc_len) <= tail) { if (strncasecmp(key, "objectclass", oc_len) == 0) { /* * assertion is "objectclass=ocname", * ocname is the one needs to be mapped * * skip spaces after "=" to find start * of the ocname */ head = info[i]->veq_pos; for (head = info[i]->veq_pos + 1; *head && *head == SPACETOK; head++) ; /* ignore empty ocname */ if (!(*head)) continue; info[i]->name_start = head - filter_c + filter; /* * now find the end of the ocname */ for (c = head; ; c++) { /* CPARATOK is ')' */ if (*c == CPARATOK || *c == '\0' || *c == SPACETOK) { *c = '\0'; info[i]->name_end = c - filter_c - 1 + filter; filter_c_next = c + 1; info[i]->oc_or_attr = 'o'; info[i]->from_name = head; break; } } } } /* * assertion is not "objectclass=ocname", * assume assertion is " = ", * is the one needs to be mapped */ if (info[i]->from_name == NULL && strlen(key) > 0) { info[i]->oc_or_attr = 'a'; info[i]->from_name = key; } } /* perform schema mapping */ for (i = 0; i < num_veq; i++) { if (info[i]->from_name == NULL) continue; if (info[i]->oc_or_attr == 'a') info[i]->mapping = __ns_ldap_getMappedAttributes(service, info[i]->from_name); else info[i]->mapping = __ns_ldap_getMappedObjectClass(service, info[i]->from_name); if (info[i]->mapping == NULL && auto_service) { /* * If no mapped attribute/objectclass is found * and service == auto* * try to find automount's * mapped attribute/objectclass */ if (info[i]->oc_or_attr == 'a') info[i]->mapping = __ns_ldap_getMappedAttributes("automount", info[i]->from_name); else info[i]->mapping = __ns_ldap_getMappedObjectClass("automount", info[i]->from_name); } if (info[i]->mapping == NULL || info[i]->mapping[0] == NULL) { info[i]->to_name = NULL; } else if (info[i]->mapping[1] == NULL) { info[i]->to_name = info[i]->mapping[0]; at_least_one = TRUE; } else { __s_api_free2dArray(info[i]->mapping); /* * multiple mapping * not allowed */ (void) sprintf(errstr, gettext( "Multiple attribute or objectclass " "mapping for '%s' in filter " "'%s' not allowed."), info[i]->from_name, filter); err = strdup(errstr); if (err) MKERROR(LOG_WARNING, cookie->errorp, NS_CONFIG_SYNTAX, err, NULL); free(filter_c); for (j = 0; j < num_veq; j++) { if (info[j]->mapping) __s_api_free2dArray( info[j]->mapping); free(info[j]); } free(info); return (NS_LDAP_CONFIG); } } if (at_least_one) { len = strlen(filter); last_copied = filter - 1; for (i = 0; i < num_veq; i++) { if (info[i]->to_name) len += strlen(info[i]->to_name); } *new_filter = (char *)calloc(1, len); if (*new_filter == NULL) { free(filter_c); for (j = 0; j < num_veq; j++) { if (info[j]->mapping) __s_api_free2dArray( info[j]->mapping); free(info[j]); } free(info); return (NS_LDAP_MEMORY); } for (i = 0; i < num_veq; i++) { if (info[i]->to_name != NULL && info[i]->to_name != NULL) { /* * copy the original filter data * between the last name and current * name */ if ((last_copied + 1) != info[i]->name_start) (void) strncat(*new_filter, last_copied + 1, info[i]->name_start - last_copied - 1); /* the data is copied */ last_copied = info[i]->name_end; /* * replace the name with * the mapped name */ (void) strcat(*new_filter, info[i]->to_name); } /* copy the filter data after the last name */ if (i == (num_veq -1) && info[i]->name_end < (filter + strlen(filter))) (void) strncat(*new_filter, last_copied + 1, filter + strlen(filter) - last_copied - 1); } } /* free memory */ free(filter_c); for (j = 0; j < num_veq; j++) { if (info[j]->mapping) __s_api_free2dArray(info[j]->mapping); free(info[j]); } free(info); return (NS_LDAP_SUCCESS); } static int setup_next_search(ns_ldap_cookie_t *cookie) { ns_ldap_search_desc_t *dptr; int scope; char *filter, *str; int baselen; int rc; void **param; dptr = *cookie->sdpos; scope = cookie->i_flags & (NS_LDAP_SCOPE_BASE | NS_LDAP_SCOPE_ONELEVEL | NS_LDAP_SCOPE_SUBTREE); if (scope) cookie->scope = scope; else cookie->scope = dptr->scope; switch (cookie->scope) { case NS_LDAP_SCOPE_BASE: cookie->scope = LDAP_SCOPE_BASE; break; case NS_LDAP_SCOPE_ONELEVEL: cookie->scope = LDAP_SCOPE_ONELEVEL; break; case NS_LDAP_SCOPE_SUBTREE: cookie->scope = LDAP_SCOPE_SUBTREE; break; } filter = NULL; if (cookie->use_filtercb && cookie->init_filter_cb && dptr->filter && strlen(dptr->filter) > 0) { (*cookie->init_filter_cb)(dptr, &filter, cookie->userdata); } if (filter == NULL) { if (cookie->i_filter == NULL) { cookie->err_rc = NS_LDAP_INVALID_PARAM; return (-1); } else { if (cookie->filter) free(cookie->filter); cookie->filter = strdup(cookie->i_filter); if (cookie->filter == NULL) { cookie->err_rc = NS_LDAP_MEMORY; return (-1); } } } else { if (cookie->filter) free(cookie->filter); cookie->filter = strdup(filter); free(filter); if (cookie->filter == NULL) { cookie->err_rc = NS_LDAP_MEMORY; return (-1); } } /* * perform attribute/objectclass mapping on filter */ filter = NULL; if (cookie->service) { rc = get_mapped_filter(cookie, &filter); if (rc != NS_LDAP_SUCCESS) { cookie->err_rc = rc; return (-1); } else { /* * get_mapped_filter returns * NULL filter pointer, if * no mapping was done */ if (filter) { free(cookie->filter); cookie->filter = filter; } } } /* * validate filter to make sure it's legal * [remove redundant ()'s] */ rc = validate_filter(cookie); if (rc != NS_LDAP_SUCCESS) { cookie->err_rc = rc; return (-1); } baselen = strlen(dptr->basedn); if (baselen > 0 && dptr->basedn[baselen-1] == COMMATOK) { rc = __ns_ldap_getParam(NS_LDAP_SEARCH_BASEDN_P, (void ***)¶m, &cookie->errorp); if (rc != NS_LDAP_SUCCESS) { cookie->err_rc = rc; return (-1); } str = ((char **)param)[0]; baselen += strlen(str)+1; if (cookie->basedn) free(cookie->basedn); cookie->basedn = (char *)malloc(baselen); if (cookie->basedn == NULL) { cookie->err_rc = NS_LDAP_MEMORY; return (-1); } (void) strcpy(cookie->basedn, dptr->basedn); (void) strcat(cookie->basedn, str); (void) __ns_ldap_freeParam(¶m); } else { if (cookie->basedn) free(cookie->basedn); cookie->basedn = strdup(dptr->basedn); } return (0); } static int setup_referral_search(ns_ldap_cookie_t *cookie) { ns_referral_info_t *ref; ref = cookie->refpos; cookie->scope = ref->refScope; if (cookie->filter) { free(cookie->filter); } cookie->filter = strdup(ref->refFilter); if (cookie->basedn) { free(cookie->basedn); } cookie->basedn = strdup(ref->refDN); if (cookie->filter == NULL || cookie->basedn == NULL) { cookie->err_rc = NS_LDAP_MEMORY; return (-1); } return (0); } static int get_current_session(ns_ldap_cookie_t *cookie) { ConnectionID connectionId = -1; Connection *conp = NULL; int rc; int fail_if_new_pwd_reqd = 1; rc = __s_api_getConnection(NULL, cookie->i_flags, cookie->i_auth, &connectionId, &conp, &cookie->errorp, fail_if_new_pwd_reqd, cookie->nopasswd_acct_mgmt); /* * If password control attached in *cookie->errorp, * e.g. rc == NS_LDAP_SUCCESS_WITH_INFO, * free the error structure (we do not need * the sec_to_expired info). * Reset rc to NS_LDAP_SUCCESS. */ if (rc == NS_LDAP_SUCCESS_WITH_INFO) { (void) __ns_ldap_freeError( &cookie->errorp); cookie->errorp = NULL; rc = NS_LDAP_SUCCESS; } if (rc != NS_LDAP_SUCCESS) { cookie->err_rc = rc; return (-1); } cookie->conn = conp; cookie->connectionId = connectionId; return (0); } static int get_next_session(ns_ldap_cookie_t *cookie) { ConnectionID connectionId = -1; Connection *conp = NULL; int rc; int fail_if_new_pwd_reqd = 1; if (cookie->connectionId > -1) { DropConnection(cookie->connectionId, cookie->i_flags); cookie->connectionId = -1; } rc = __s_api_getConnection(NULL, cookie->i_flags, cookie->i_auth, &connectionId, &conp, &cookie->errorp, fail_if_new_pwd_reqd, cookie->nopasswd_acct_mgmt); /* * If password control attached in *cookie->errorp, * e.g. rc == NS_LDAP_SUCCESS_WITH_INFO, * free the error structure (we do not need * the sec_to_expired info). * Reset rc to NS_LDAP_SUCCESS. */ if (rc == NS_LDAP_SUCCESS_WITH_INFO) { (void) __ns_ldap_freeError( &cookie->errorp); cookie->errorp = NULL; rc = NS_LDAP_SUCCESS; } if (rc != NS_LDAP_SUCCESS) { cookie->err_rc = rc; return (-1); } cookie->conn = conp; cookie->connectionId = connectionId; return (0); } static int get_referral_session(ns_ldap_cookie_t *cookie) { ConnectionID connectionId = -1; Connection *conp = NULL; int rc; int fail_if_new_pwd_reqd = 1; if (cookie->connectionId > -1) { DropConnection(cookie->connectionId, cookie->i_flags); cookie->connectionId = -1; } rc = __s_api_getConnection(cookie->refpos->refHost, 0, cookie->i_auth, &connectionId, &conp, &cookie->errorp, fail_if_new_pwd_reqd, cookie->nopasswd_acct_mgmt); /* * If password control attached in *cookie->errorp, * e.g. rc == NS_LDAP_SUCCESS_WITH_INFO, * free the error structure (we do not need * the sec_to_expired info). * Reset rc to NS_LDAP_SUCCESS. */ if (rc == NS_LDAP_SUCCESS_WITH_INFO) { (void) __ns_ldap_freeError( &cookie->errorp); cookie->errorp = NULL; rc = NS_LDAP_SUCCESS; } if (rc != NS_LDAP_SUCCESS) { cookie->err_rc = rc; return (-1); } cookie->conn = conp; cookie->connectionId = connectionId; return (0); } static int paging_supported(ns_ldap_cookie_t *cookie) { int rc; cookie->listType = 0; rc = __s_api_isCtrlSupported(cookie->conn, LDAP_CONTROL_VLVREQUEST); if (rc == NS_LDAP_SUCCESS) { cookie->listType = VLVCTRLFLAG; return (1); } rc = __s_api_isCtrlSupported(cookie->conn, LDAP_CONTROL_SIMPLE_PAGE); if (rc == NS_LDAP_SUCCESS) { cookie->listType = SIMPLEPAGECTRLFLAG; return (1); } return (0); } static int setup_vlv_params(ns_ldap_cookie_t *cookie) { LDAPControl **ctrls; LDAPsortkey **sortkeylist; LDAPControl *sortctrl = NULL; LDAPControl *vlvctrl = NULL; LDAPVirtualList vlist; int rc; _freeControlList(&cookie->p_serverctrls); rc = ldap_create_sort_keylist(&sortkeylist, SORTKEYLIST); if (rc != LDAP_SUCCESS) { (void) ldap_get_option(cookie->conn->ld, LDAP_OPT_ERROR_NUMBER, &rc); return (rc); } rc = ldap_create_sort_control(cookie->conn->ld, sortkeylist, 1, &sortctrl); ldap_free_sort_keylist(sortkeylist); if (rc != LDAP_SUCCESS) { (void) ldap_get_option(cookie->conn->ld, LDAP_OPT_ERROR_NUMBER, &rc); return (rc); } vlist.ldvlist_index = cookie->index; vlist.ldvlist_size = 0; vlist.ldvlist_before_count = 0; vlist.ldvlist_after_count = LISTPAGESIZE-1; vlist.ldvlist_attrvalue = NULL; vlist.ldvlist_extradata = NULL; rc = ldap_create_virtuallist_control(cookie->conn->ld, &vlist, &vlvctrl); if (rc != LDAP_SUCCESS) { ldap_control_free(sortctrl); (void) ldap_get_option(cookie->conn->ld, LDAP_OPT_ERROR_NUMBER, &rc); return (rc); } ctrls = (LDAPControl **)calloc(3, sizeof (LDAPControl *)); if (ctrls == NULL) { ldap_control_free(sortctrl); ldap_control_free(vlvctrl); return (LDAP_NO_MEMORY); } ctrls[0] = sortctrl; ctrls[1] = vlvctrl; cookie->p_serverctrls = ctrls; return (LDAP_SUCCESS); } static int setup_simplepg_params(ns_ldap_cookie_t *cookie) { LDAPControl **ctrls; LDAPControl *pgctrl = NULL; int rc; _freeControlList(&cookie->p_serverctrls); rc = ldap_create_page_control(cookie->conn->ld, LISTPAGESIZE, cookie->ctrlCookie, (char)0, &pgctrl); if (rc != LDAP_SUCCESS) { (void) ldap_get_option(cookie->conn->ld, LDAP_OPT_ERROR_NUMBER, &rc); return (rc); } ctrls = (LDAPControl **)calloc(2, sizeof (LDAPControl *)); if (ctrls == NULL) { ldap_control_free(pgctrl); return (LDAP_NO_MEMORY); } ctrls[0] = pgctrl; cookie->p_serverctrls = ctrls; return (LDAP_SUCCESS); } static void proc_result_referrals(ns_ldap_cookie_t *cookie) { int errCode, i, rc; char **referrals = NULL; /* * Only follow one level of referrals, i.e. * if already in referral mode, do nothing */ if (cookie->refpos == NULL) { cookie->new_state = END_RESULT; rc = ldap_parse_result(cookie->conn->ld, cookie->resultMsg, &errCode, NULL, NULL, &referrals, NULL, 0); if (rc != NS_LDAP_SUCCESS) { (void) ldap_get_option(cookie->conn->ld, LDAP_OPT_ERROR_NUMBER, &cookie->err_rc); cookie->new_state = LDAP_ERROR; return; } if (errCode == LDAP_REFERRAL) { for (i = 0; referrals[i] != NULL; i++) { /* add to referral list */ rc = __s_api_addRefInfo( &cookie->reflist, referrals[i], cookie->basedn, &cookie->scope, cookie->filter, cookie->conn->ld); if (rc != NS_LDAP_SUCCESS) { cookie->new_state = ERROR; break; } } ldap_value_free(referrals); } } } static void proc_search_references(ns_ldap_cookie_t *cookie) { char **refurls = NULL; int i, rc; /* * Only follow one level of referrals, i.e. * if already in referral mode, do nothing */ if (cookie->refpos == NULL) { refurls = ldap_get_reference_urls( cookie->conn->ld, cookie->resultMsg); if (refurls == NULL) { (void) ldap_get_option(cookie->conn->ld, LDAP_OPT_ERROR_NUMBER, &cookie->err_rc); cookie->new_state = LDAP_ERROR; return; } for (i = 0; refurls[i] != NULL; i++) { /* add to referral list */ rc = __s_api_addRefInfo( &cookie->reflist, refurls[i], cookie->basedn, &cookie->scope, cookie->filter, cookie->conn->ld); if (rc != NS_LDAP_SUCCESS) { cookie->new_state = ERROR; break; } } /* free allocated storage */ for (i = 0; refurls[i] != NULL; i++) free(refurls[i]); } } static ns_state_t multi_result(ns_ldap_cookie_t *cookie) { char errstr[MAXERROR]; char *err; ns_ldap_error_t **errorp = NULL; LDAPControl **retCtrls = NULL; int i, rc; int errCode; int finished = 0; unsigned long target_posp = 0; unsigned long list_size = 0; unsigned int count = 0; char **referrals = NULL; if (cookie->listType == VLVCTRLFLAG) { rc = ldap_parse_result(cookie->conn->ld, cookie->resultMsg, &errCode, NULL, NULL, &referrals, &retCtrls, 0); if (rc != LDAP_SUCCESS) { (void) ldap_get_option(cookie->conn->ld, LDAP_OPT_ERROR_NUMBER, &cookie->err_rc); (void) sprintf(errstr, gettext("LDAP ERROR (%d): %s.\n"), cookie->err_rc, gettext(ldap_err2string(cookie->err_rc))); err = strdup(errstr); MKERROR(LOG_WARNING, *errorp, NS_LDAP_INTERNAL, err, NULL); cookie->err_rc = NS_LDAP_INTERNAL; cookie->errorp = *errorp; return (LDAP_ERROR); } if (errCode == LDAP_REFERRAL) { for (i = 0; referrals[i] != NULL; i++) { /* add to referral list */ rc = __s_api_addRefInfo( &cookie->reflist, referrals[i], cookie->basedn, &cookie->scope, cookie->filter, cookie->conn->ld); if (rc != NS_LDAP_SUCCESS) { ldap_value_free( referrals); if (retCtrls) ldap_controls_free( retCtrls); return (ERROR); } } ldap_value_free(referrals); if (retCtrls) ldap_controls_free(retCtrls); return (END_RESULT); } if (retCtrls) { rc = ldap_parse_virtuallist_control( cookie->conn->ld, retCtrls, &target_posp, &list_size, &errCode); if (rc == LDAP_SUCCESS) { cookie->index = target_posp + LISTPAGESIZE; if (cookie->index > list_size) { finished = 1; } } ldap_controls_free(retCtrls); retCtrls = NULL; } else finished = 1; } else if (cookie->listType == SIMPLEPAGECTRLFLAG) { rc = ldap_parse_result(cookie->conn->ld, cookie->resultMsg, &errCode, NULL, NULL, &referrals, &retCtrls, 0); if (rc != LDAP_SUCCESS) { (void) ldap_get_option(cookie->conn->ld, LDAP_OPT_ERROR_NUMBER, &cookie->err_rc); (void) sprintf(errstr, gettext("LDAP ERROR (%d): %s.\n"), cookie->err_rc, gettext(ldap_err2string(cookie->err_rc))); err = strdup(errstr); MKERROR(LOG_WARNING, *errorp, NS_LDAP_INTERNAL, err, NULL); cookie->err_rc = NS_LDAP_INTERNAL; cookie->errorp = *errorp; return (LDAP_ERROR); } if (errCode == LDAP_REFERRAL) { for (i = 0; referrals[i] != NULL; i++) { /* add to referral list */ rc = __s_api_addRefInfo( &cookie->reflist, referrals[i], cookie->basedn, &cookie->scope, cookie->filter, cookie->conn->ld); if (rc != NS_LDAP_SUCCESS) { ldap_value_free( referrals); if (retCtrls) ldap_controls_free( retCtrls); return (ERROR); } } ldap_value_free(referrals); if (retCtrls) ldap_controls_free(retCtrls); return (END_RESULT); } if (retCtrls) { if (cookie->ctrlCookie) ber_bvfree(cookie->ctrlCookie); cookie->ctrlCookie = NULL; rc = ldap_parse_page_control( cookie->conn->ld, retCtrls, &count, &cookie->ctrlCookie); if (rc == LDAP_SUCCESS) { if ((cookie->ctrlCookie == NULL) || (cookie->ctrlCookie->bv_val == NULL) || (cookie->ctrlCookie->bv_len == 0)) finished = 1; } ldap_controls_free(retCtrls); retCtrls = NULL; } else finished = 1; } if (!finished && cookie->listType == VLVCTRLFLAG) return (NEXT_VLV); if (!finished && cookie->listType == SIMPLEPAGECTRLFLAG) return (NEXT_PAGE); if (finished) return (END_RESULT); return (ERROR); } /* * This state machine performs one or more LDAP searches to a given * directory server using service search descriptors and schema * mapping as appropriate. The approximate pseudocode for * this routine is the following: * Given the current configuration [set/reset connection etc.] * and the current service search descriptor list * or default search filter parameters * foreach (service search filter) { * initialize the filter [via filter_init if appropriate] * get a valid session/connection (preferably the current one) * Recover if the connection is lost * perform the search * foreach (result entry) { * process result [via callback if appropriate] * save result for caller if accepted. * exit and return all collected if allResults found; * } * } * return collected results and exit */ static ns_state_t search_state_machine(ns_ldap_cookie_t *cookie, ns_state_t state, int cycle) { char errstr[MAXERROR]; char *err; int rc, ret; ns_ldap_entry_t *nextEntry; ns_ldap_error_t *error = NULL; ns_ldap_error_t **errorp; errorp = &error; cookie->state = state; errstr[0] = '\0'; for (;;) { switch (cookie->state) { case CLEAR_RESULTS: if (cookie->conn != NULL && cookie->conn->ld != NULL && cookie->connectionId != -1 && cookie->msgId != 0) { (void) ldap_abandon_ext(cookie->conn->ld, cookie->msgId, NULL, NULL); cookie->msgId = 0; } cookie->new_state = EXIT; break; case GET_ACCT_MGMT_INFO: /* * Set the flag to get ldap account management controls. */ cookie->nopasswd_acct_mgmt = 1; cookie->new_state = INIT; break; case EXIT: /* state engine/connection cleaned up in delete */ if (cookie->attribute) { __s_api_free2dArray(cookie->attribute); cookie->attribute = NULL; } if (cookie->reflist) { __s_api_deleteRefInfo(cookie->reflist); cookie->reflist = NULL; } return (EXIT); case INIT: cookie->sdpos = NULL; cookie->new_state = NEXT_SEARCH_DESCRIPTOR; if (cookie->attribute) { __s_api_free2dArray(cookie->attribute); cookie->attribute = NULL; } if ((cookie->i_flags & NS_LDAP_NOMAP) == 0 && cookie->i_attr) { cookie->attribute = __ns_ldap_mapAttributeList( cookie->service, cookie->i_attr); } break; case NEXT_SEARCH_DESCRIPTOR: /* get next search descriptor */ if (cookie->sdpos == NULL) { cookie->sdpos = cookie->sdlist; cookie->new_state = GET_SESSION; } else { cookie->sdpos++; cookie->new_state = NEXT_SEARCH; } if (*cookie->sdpos == NULL) cookie->new_state = EXIT; break; case GET_SESSION: if (get_current_session(cookie) < 0) cookie->new_state = NEXT_SESSION; else cookie->new_state = NEXT_SEARCH; break; case NEXT_SESSION: if (get_next_session(cookie) < 0) cookie->new_state = RESTART_SESSION; else cookie->new_state = NEXT_SEARCH; break; case RESTART_SESSION: if (cookie->i_flags & NS_LDAP_HARD) { cookie->new_state = NEXT_SESSION; break; } (void) sprintf(errstr, gettext("Session error no available conn.\n"), state); err = strdup(errstr); MKERROR(LOG_WARNING, *errorp, NS_LDAP_INTERNAL, err, NULL); cookie->err_rc = NS_LDAP_INTERNAL; cookie->errorp = *errorp; cookie->new_state = EXIT; break; case NEXT_SEARCH: /* setup referrals search if necessary */ if (cookie->refpos) { if (setup_referral_search(cookie) < 0) { cookie->new_state = EXIT; break; } } else if (setup_next_search(cookie) < 0) { cookie->new_state = EXIT; break; } /* only do VLV/PAGE on scopes onelevel/subtree */ if (paging_supported(cookie)) { if (cookie->use_paging && (cookie->scope != LDAP_SCOPE_BASE)) { cookie->index = 1; if (cookie->listType == VLVCTRLFLAG) cookie->new_state = NEXT_VLV; else cookie->new_state = NEXT_PAGE; break; } } cookie->new_state = ONE_SEARCH; break; case NEXT_VLV: rc = setup_vlv_params(cookie); if (rc != LDAP_SUCCESS) { cookie->err_rc = rc; cookie->new_state = LDAP_ERROR; break; } cookie->next_state = MULTI_RESULT; cookie->new_state = DO_SEARCH; break; case NEXT_PAGE: rc = setup_simplepg_params(cookie); if (rc != LDAP_SUCCESS) { cookie->err_rc = rc; cookie->new_state = LDAP_ERROR; break; } cookie->next_state = MULTI_RESULT; cookie->new_state = DO_SEARCH; break; case ONE_SEARCH: cookie->next_state = NEXT_RESULT; cookie->new_state = DO_SEARCH; break; case DO_SEARCH: rc = ldap_search_ext(cookie->conn->ld, cookie->basedn, cookie->scope, cookie->filter, cookie->attribute, 0, cookie->p_serverctrls, NULL, &cookie->search_timeout, 0, &cookie->msgId); if (rc != LDAP_SUCCESS) { if (rc == LDAP_BUSY || rc == LDAP_UNAVAILABLE || rc == LDAP_UNWILLING_TO_PERFORM || rc == LDAP_CONNECT_ERROR || rc == LDAP_SERVER_DOWN) { cookie->new_state = NEXT_SESSION; /* * If not able to reach the * server, inform the ldap * cache manager that the * server should be removed * from it's server list. * Thus, the manager will not * return this server on the next * get-server request and will * also reduce the server list * refresh TTL, so that it will * find out sooner when the server * is up again. */ if (rc == LDAP_CONNECT_ERROR || rc == LDAP_SERVER_DOWN) { ret = __s_api_removeServer( cookie->conn->serverAddr); if (ret == NOSERVER && cookie->conn_auth_type == NS_LDAP_AUTH_NONE) { /* * Couldn't remove * server from server * list. * Exit to avoid * potential infinite * loop. */ cookie->err_rc = rc; cookie->new_state = LDAP_ERROR; } if (cookie->connectionId > -1) { /* * NS_LDAP_NEW_CONN * indicates that the * connection should * be deleted, not * kept alive */ DropConnection( cookie-> connectionId, NS_LDAP_NEW_CONN); cookie->connectionId = -1; } } break; } cookie->err_rc = rc; cookie->new_state = LDAP_ERROR; break; } cookie->new_state = cookie->next_state; break; case NEXT_RESULT: rc = ldap_result(cookie->conn->ld, cookie->msgId, LDAP_MSG_ONE, (struct timeval *)&cookie->search_timeout, &cookie->resultMsg); if (rc == LDAP_RES_SEARCH_RESULT) { cookie->new_state = END_RESULT; /* check and process referrals info */ if (cookie->followRef) proc_result_referrals( cookie); (void) ldap_msgfree(cookie->resultMsg); cookie->resultMsg = NULL; break; } /* handle referrals if necessary */ if (rc == LDAP_RES_SEARCH_REFERENCE) { if (cookie->followRef) proc_search_references(cookie); (void) ldap_msgfree(cookie->resultMsg); cookie->resultMsg = NULL; break; } if (rc != LDAP_RES_SEARCH_ENTRY) { switch (rc) { case 0: rc = LDAP_TIMEOUT; break; case -1: rc = ldap_get_lderrno(cookie->conn->ld, NULL, NULL); break; default: rc = ldap_result2error(cookie->conn->ld, cookie->resultMsg, 1); break; } if (rc == LDAP_TIMEOUT || rc == LDAP_SERVER_DOWN) { if (rc == LDAP_TIMEOUT) (void) __s_api_removeServer( cookie->conn->serverAddr); if (cookie->connectionId > -1) { DropConnection( cookie->connectionId, NS_LDAP_NEW_CONN); cookie->connectionId = -1; } cookie->err_from_result = 1; } (void) ldap_msgfree(cookie->resultMsg); cookie->resultMsg = NULL; if (rc == LDAP_BUSY || rc == LDAP_UNAVAILABLE || rc == LDAP_UNWILLING_TO_PERFORM) { cookie->new_state = NEXT_SESSION; break; } cookie->err_rc = rc; cookie->new_state = LDAP_ERROR; break; } /* else LDAP_RES_SEARCH_ENTRY */ /* get account management response control */ if (cookie->nopasswd_acct_mgmt == 1) { rc = ldap_get_entry_controls(cookie->conn->ld, cookie->resultMsg, &(cookie->resultctrl)); if (rc != LDAP_SUCCESS) { cookie->new_state = LDAP_ERROR; cookie->err_rc = rc; break; } } rc = __s_api_getEntry(cookie); (void) ldap_msgfree(cookie->resultMsg); cookie->resultMsg = NULL; if (rc != NS_LDAP_SUCCESS) { cookie->new_state = LDAP_ERROR; break; } cookie->new_state = PROCESS_RESULT; cookie->next_state = NEXT_RESULT; break; case MULTI_RESULT: rc = ldap_result(cookie->conn->ld, cookie->msgId, LDAP_MSG_ONE, (struct timeval *)&cookie->search_timeout, &cookie->resultMsg); if (rc == LDAP_RES_SEARCH_RESULT) { rc = ldap_result2error(cookie->conn->ld, cookie->resultMsg, 0); if (rc != LDAP_SUCCESS) { cookie->err_rc = rc; cookie->new_state = LDAP_ERROR; (void) ldap_msgfree(cookie->resultMsg); break; } cookie->new_state = multi_result(cookie); (void) ldap_msgfree(cookie->resultMsg); cookie->resultMsg = NULL; break; } /* handle referrals if necessary */ if (rc == LDAP_RES_SEARCH_REFERENCE && cookie->followRef) { proc_search_references(cookie); (void) ldap_msgfree(cookie->resultMsg); cookie->resultMsg = NULL; break; } if (rc != LDAP_RES_SEARCH_ENTRY) { switch (rc) { case 0: rc = LDAP_TIMEOUT; break; case -1: rc = ldap_get_lderrno(cookie->conn->ld, NULL, NULL); break; default: rc = ldap_result2error(cookie->conn->ld, cookie->resultMsg, 1); break; } if (rc == LDAP_TIMEOUT || rc == LDAP_SERVER_DOWN) { if (rc == LDAP_TIMEOUT) (void) __s_api_removeServer( cookie->conn->serverAddr); if (cookie->connectionId > -1) { DropConnection( cookie->connectionId, NS_LDAP_NEW_CONN); cookie->connectionId = -1; } cookie->err_from_result = 1; } (void) ldap_msgfree(cookie->resultMsg); cookie->resultMsg = NULL; if (rc == LDAP_BUSY || rc == LDAP_UNAVAILABLE || rc == LDAP_UNWILLING_TO_PERFORM) { cookie->new_state = NEXT_SESSION; break; } cookie->err_rc = rc; cookie->new_state = LDAP_ERROR; break; } /* else LDAP_RES_SEARCH_ENTRY */ rc = __s_api_getEntry(cookie); (void) ldap_msgfree(cookie->resultMsg); cookie->resultMsg = NULL; if (rc != NS_LDAP_SUCCESS) { cookie->new_state = LDAP_ERROR; break; } cookie->new_state = PROCESS_RESULT; cookie->next_state = MULTI_RESULT; break; case PROCESS_RESULT: /* NOTE THIS STATE MAY BE PROCESSED BY CALLER */ if (cookie->use_usercb && cookie->callback) { rc = 0; for (nextEntry = cookie->result->entry; nextEntry != NULL; nextEntry = nextEntry->next) { rc = (*cookie->callback)(nextEntry, cookie->userdata); if (rc == NS_LDAP_CB_DONE) { /* cb doesn't want any more data */ rc = NS_LDAP_PARTIAL; cookie->err_rc = rc; break; } else if (rc != NS_LDAP_CB_NEXT) { /* invalid return code */ rc = NS_LDAP_OP_FAILED; cookie->err_rc = rc; break; } } (void) __ns_ldap_freeResult(&cookie->result); cookie->result = NULL; } if (rc != 0) { cookie->new_state = EXIT; break; } /* NOTE PREVIOUS STATE SPECIFIES NEXT STATE */ cookie->new_state = cookie->next_state; break; case END_PROCESS_RESULT: cookie->new_state = cookie->next_state; break; case END_RESULT: /* * XXX DO WE NEED THIS CASE? * if (search is complete) { * cookie->new_state = EXIT; * } else */ /* * entering referral mode if necessary */ if (cookie->followRef && cookie->reflist) cookie->new_state = NEXT_REFERRAL; else cookie->new_state = NEXT_SEARCH_DESCRIPTOR; break; case NEXT_REFERRAL: /* get next referral info */ if (cookie->refpos == NULL) cookie->refpos = cookie->reflist; else cookie->refpos = cookie->refpos->next; /* check see if done with all referrals */ if (cookie->refpos != NULL) cookie->new_state = GET_REFERRAL_SESSION; else { __s_api_deleteRefInfo(cookie->reflist); cookie->reflist = NULL; cookie->new_state = NEXT_SEARCH_DESCRIPTOR; } break; case GET_REFERRAL_SESSION: if (get_referral_session(cookie) < 0) cookie->new_state = EXIT; else { cookie->new_state = NEXT_SEARCH; } break; case LDAP_ERROR: if (cookie->err_from_result) { if (cookie->err_rc == LDAP_SERVER_DOWN) { (void) sprintf(errstr, gettext("LDAP ERROR (%d): " "Error occurred during" " receiving results. " "Connection to server lost."), cookie->err_rc); } else if (cookie->err_rc == LDAP_TIMEOUT) { (void) sprintf(errstr, gettext("LDAP ERROR (%d): " "Error occurred during" " receiving results. %s" "."), cookie->err_rc, ldap_err2string( cookie->err_rc)); } } else (void) sprintf(errstr, gettext("LDAP ERROR (%d): %s."), cookie->err_rc, ldap_err2string(cookie->err_rc)); err = strdup(errstr); if (cookie->err_from_result) { if (cookie->err_rc == LDAP_SERVER_DOWN) { MKERROR(LOG_INFO, *errorp, cookie->err_rc, err, NULL); } else { MKERROR(LOG_WARNING, *errorp, cookie->err_rc, err, NULL); } } else { MKERROR(LOG_WARNING, *errorp, NS_LDAP_INTERNAL, err, NULL); } cookie->err_rc = NS_LDAP_INTERNAL; cookie->errorp = *errorp; return (ERROR); default: case ERROR: (void) sprintf(errstr, gettext("Internal State machine exit (%d).\n"), cookie->state); err = strdup(errstr); MKERROR(LOG_WARNING, *errorp, NS_LDAP_INTERNAL, err, NULL); cookie->err_rc = NS_LDAP_INTERNAL; cookie->errorp = *errorp; return (ERROR); } if (cycle == ONE_STEP) { return (cookie->new_state); } cookie->state = cookie->new_state; } /*NOTREACHED*/ #if 0 (void) sprintf(errstr, gettext("Unexpected State machine error.\n")); err = strdup(errstr); MKERROR(LOG_WARNING, *errorp, NS_LDAP_INTERNAL, err, NULL); cookie->err_rc = NS_LDAP_INTERNAL; cookie->errorp = *errorp; return (ERROR); #endif } /* * __ns_ldap_list performs one or more LDAP searches to a given * directory server using service search descriptors and schema * mapping as appropriate. */ int __ns_ldap_list( const char *service, const char *filter, int (*init_filter_cb)(const ns_ldap_search_desc_t *desc, char **realfilter, const void *userdata), const char * const *attribute, const ns_cred_t *auth, const int flags, ns_ldap_result_t **rResult, /* return result entries */ ns_ldap_error_t **errorp, int (*callback)(const ns_ldap_entry_t *entry, const void *userdata), const void *userdata) { ns_ldap_cookie_t *cookie; ns_ldap_search_desc_t **sdlist = NULL; ns_ldap_search_desc_t *dptr; ns_ldap_error_t *error = NULL; char **dns = NULL; int scope; int rc; int from_result; *errorp = NULL; /* Initialize State machine cookie */ cookie = init_search_state_machine(); if (cookie == NULL) { return (NS_LDAP_MEMORY); } /* see if need to follow referrals */ rc = __s_api_toFollowReferrals(flags, &cookie->followRef, errorp); if (rc != NS_LDAP_SUCCESS) { delete_search_cookie(cookie); return (rc); } /* get the service descriptor - or create a default one */ rc = __s_api_get_SSD_from_SSDtoUse_service(service, &sdlist, errorp); if (rc != NS_LDAP_SUCCESS) { delete_search_cookie(cookie); *errorp = error; return (rc); } if (sdlist == NULL) { /* Create default service Desc */ sdlist = (ns_ldap_search_desc_t **)calloc(2, sizeof (ns_ldap_search_desc_t *)); if (sdlist == NULL) { delete_search_cookie(cookie); cookie = NULL; return (NS_LDAP_MEMORY); } dptr = (ns_ldap_search_desc_t *) calloc(1, sizeof (ns_ldap_search_desc_t)); if (dptr == NULL) { free(sdlist); delete_search_cookie(cookie); cookie = NULL; return (NS_LDAP_MEMORY); } sdlist[0] = dptr; /* default base */ rc = __s_api_getDNs(&dns, service, &cookie->errorp); if (rc != NS_LDAP_SUCCESS) { if (dns) { __s_api_free2dArray(dns); dns = NULL; } *errorp = cookie->errorp; cookie->errorp = NULL; delete_search_cookie(cookie); cookie = NULL; return (rc); } dptr->basedn = strdup(dns[0]); __s_api_free2dArray(dns); dns = NULL; /* default scope */ scope = 0; rc = __s_api_getSearchScope(&scope, &cookie->errorp); dptr->scope = scope; } cookie->sdlist = sdlist; /* * use VLV/PAGE control only if NS_LDAP_PAGE_CTRL is set */ if (flags & NS_LDAP_PAGE_CTRL) cookie->use_paging = TRUE; else cookie->use_paging = FALSE; /* Set up other arguments */ cookie->userdata = userdata; if (init_filter_cb != NULL) { cookie->init_filter_cb = init_filter_cb; cookie->use_filtercb = 1; } if (callback != NULL) { cookie->callback = callback; cookie->use_usercb = 1; } if (service) { cookie->service = strdup(service); if (cookie->service == NULL) { delete_search_cookie(cookie); cookie = NULL; return (NS_LDAP_MEMORY); } } cookie->i_filter = strdup(filter); cookie->i_attr = attribute; cookie->i_auth = auth; cookie->i_flags = flags; /* Process search */ rc = search_state_machine(cookie, INIT, 0); /* Copy results back to user */ rc = cookie->err_rc; if (rc != NS_LDAP_SUCCESS) *errorp = cookie->errorp; *rResult = cookie->result; from_result = cookie->err_from_result; cookie->errorp = NULL; cookie->result = NULL; delete_search_cookie(cookie); cookie = NULL; if (from_result == 0 && *rResult == NULL) rc = NS_LDAP_NOTFOUND; return (rc); } /* * __s_api_find_domainname performs one or more LDAP searches to * find the value of the nisdomain attribute associated with * the input DN */ static int __s_api_find_domainname( const char *dn, char **domainname, const ns_cred_t *cred, ns_ldap_error_t **errorp) { ns_ldap_cookie_t *cookie; ns_ldap_search_desc_t **sdlist; ns_ldap_search_desc_t *dptr; int rc; char **value; int flags = 0; *domainname = NULL; *errorp = NULL; /* Initialize State machine cookie */ cookie = init_search_state_machine(); if (cookie == NULL) { return (NS_LDAP_MEMORY); } /* see if need to follow referrals */ rc = __s_api_toFollowReferrals(flags, &cookie->followRef, errorp); if (rc != NS_LDAP_SUCCESS) { delete_search_cookie(cookie); return (rc); } /* Create default service Desc */ sdlist = (ns_ldap_search_desc_t **)calloc(2, sizeof (ns_ldap_search_desc_t *)); if (sdlist == NULL) { delete_search_cookie(cookie); cookie = NULL; return (NS_LDAP_MEMORY); } dptr = (ns_ldap_search_desc_t *) calloc(1, sizeof (ns_ldap_search_desc_t)); if (dptr == NULL) { free(sdlist); delete_search_cookie(cookie); cookie = NULL; return (NS_LDAP_MEMORY); } sdlist[0] = dptr; /* search base is dn */ dptr->basedn = strdup(dn); /* search scope is base */ dptr->scope = NS_LDAP_SCOPE_BASE; /* search filter is "nisdomain=*" */ dptr->filter = strdup(_NIS_FILTER); cookie->sdlist = sdlist; cookie->i_filter = strdup(dptr->filter); cookie->i_attr = nis_domain_attrs; cookie->i_auth = cred; cookie->i_flags = 0; /* Process search */ rc = search_state_machine(cookie, INIT, 0); /* Copy domain name if found */ rc = cookie->err_rc; if (rc != NS_LDAP_SUCCESS) *errorp = cookie->errorp; if (cookie->result == NULL) rc = NS_LDAP_NOTFOUND; if (rc == NS_LDAP_SUCCESS) { value = __ns_ldap_getAttr(cookie->result->entry, _NIS_DOMAIN); if (value[0]) *domainname = strdup(value[0]); else rc = NS_LDAP_NOTFOUND; } if (cookie->result != NULL) (void) __ns_ldap_freeResult(&cookie->result); cookie->errorp = NULL; delete_search_cookie(cookie); cookie = NULL; return (rc); } int __ns_ldap_firstEntry( const char *service, const char *filter, int (*init_filter_cb)(const ns_ldap_search_desc_t *desc, char **realfilter, const void *userdata), const char * const *attribute, const ns_cred_t *auth, const int flags, void **vcookie, ns_ldap_result_t **result, ns_ldap_error_t ** errorp, const void *userdata) { ns_ldap_cookie_t *cookie = NULL; ns_ldap_error_t *error = NULL; ns_state_t state; ns_ldap_search_desc_t **sdlist; ns_ldap_search_desc_t *dptr; char **dns = NULL; int scope; int rc; *errorp = NULL; *result = NULL; /* get the service descriptor - or create a default one */ rc = __s_api_get_SSD_from_SSDtoUse_service(service, &sdlist, errorp); if (rc != NS_LDAP_SUCCESS) { *errorp = error; return (rc); } if (sdlist == NULL) { /* Create default service Desc */ sdlist = (ns_ldap_search_desc_t **)calloc(2, sizeof (ns_ldap_search_desc_t *)); if (sdlist == NULL) { return (NS_LDAP_MEMORY); } dptr = (ns_ldap_search_desc_t *) calloc(1, sizeof (ns_ldap_search_desc_t)); if (dptr == NULL) { free(sdlist); return (NS_LDAP_MEMORY); } sdlist[0] = dptr; /* default base */ rc = __s_api_getDNs(&dns, service, &error); if (rc != NS_LDAP_SUCCESS) { if (dns) { __s_api_free2dArray(dns); dns = NULL; } if (sdlist) { (void) __ns_ldap_freeSearchDescriptors( &sdlist); sdlist = NULL; } *errorp = error; return (rc); } dptr->basedn = strdup(dns[0]); __s_api_free2dArray(dns); dns = NULL; /* default scope */ scope = 0; cookie = init_search_state_machine(); if (cookie == NULL) { if (sdlist) { (void) __ns_ldap_freeSearchDescriptors(&sdlist); sdlist = NULL; } return (NS_LDAP_MEMORY); } rc = __s_api_getSearchScope(&scope, &cookie->errorp); dptr->scope = scope; } /* Initialize State machine cookie */ if (cookie == NULL) cookie = init_search_state_machine(); if (cookie == NULL) { if (sdlist) { (void) __ns_ldap_freeSearchDescriptors(&sdlist); sdlist = NULL; } return (NS_LDAP_MEMORY); } cookie->sdlist = sdlist; /* see if need to follow referrals */ rc = __s_api_toFollowReferrals(flags, &cookie->followRef, errorp); if (rc != NS_LDAP_SUCCESS) { delete_search_cookie(cookie); return (rc); } /* * use VLV/PAGE control only if NS_LDAP_NO_PAGE_CTRL is not set */ if (flags & NS_LDAP_NO_PAGE_CTRL) cookie->use_paging = FALSE; else cookie->use_paging = TRUE; /* Set up other arguments */ cookie->userdata = userdata; if (init_filter_cb != NULL) { cookie->init_filter_cb = init_filter_cb; cookie->use_filtercb = 1; } cookie->use_usercb = 0; if (service) { cookie->service = strdup(service); if (cookie->service == NULL) { delete_search_cookie(cookie); return (NS_LDAP_MEMORY); } } cookie->i_filter = strdup(filter); cookie->i_attr = attribute; cookie->i_auth = auth; cookie->i_flags = flags; state = INIT; for (;;) { state = search_state_machine(cookie, state, ONE_STEP); switch (state) { case PROCESS_RESULT: *result = cookie->result; cookie->result = NULL; *vcookie = (void *)cookie; return (NS_LDAP_SUCCESS); case LDAP_ERROR: state = search_state_machine(cookie, state, ONE_STEP); state = search_state_machine(cookie, CLEAR_RESULTS, ONE_STEP); /* FALLTHROUGH */ case ERROR: rc = cookie->err_rc; *errorp = cookie->errorp; cookie->errorp = NULL; delete_search_cookie(cookie); return (rc); case EXIT: rc = cookie->err_rc; if (rc != NS_LDAP_SUCCESS) { *errorp = cookie->errorp; cookie->errorp = NULL; } else { rc = NS_LDAP_NOTFOUND; } delete_search_cookie(cookie); return (rc); default: break; } } } /*ARGSUSED2*/ int __ns_ldap_nextEntry( void *vcookie, ns_ldap_result_t **result, ns_ldap_error_t ** errorp) { ns_ldap_cookie_t *cookie; ns_state_t state; int rc; cookie = (ns_ldap_cookie_t *)vcookie; cookie->result = NULL; *result = NULL; state = END_PROCESS_RESULT; for (;;) { /* * if the ldap connection being used is shared, * ensure the thread-specific data area for setting * status is allocated */ if (cookie->conn->shared > 0) { rc = __s_api_check_MTC_tsd(); if (rc != NS_LDAP_SUCCESS) return (rc); } state = search_state_machine(cookie, state, ONE_STEP); switch (state) { case PROCESS_RESULT: *result = cookie->result; cookie->result = NULL; return (NS_LDAP_SUCCESS); case LDAP_ERROR: state = search_state_machine(cookie, state, ONE_STEP); state = search_state_machine(cookie, CLEAR_RESULTS, ONE_STEP); /* FALLTHROUGH */ case ERROR: rc = cookie->err_rc; *errorp = cookie->errorp; cookie->errorp = NULL; return (rc); case EXIT: return (NS_LDAP_SUCCESS); } } } int __ns_ldap_endEntry( void **vcookie, ns_ldap_error_t ** errorp) { ns_ldap_cookie_t *cookie; int rc; if (*vcookie == NULL) return (NS_LDAP_INVALID_PARAM); cookie = (ns_ldap_cookie_t *)(*vcookie); cookie->result = NULL; /* Complete search */ rc = search_state_machine(cookie, CLEAR_RESULTS, 0); /* Copy results back to user */ rc = cookie->err_rc; if (rc != NS_LDAP_SUCCESS) *errorp = cookie->errorp; cookie->errorp = NULL; delete_search_cookie(cookie); cookie = NULL; *vcookie = NULL; return (rc); } int __ns_ldap_freeResult(ns_ldap_result_t **result) { ns_ldap_entry_t *curEntry = NULL; ns_ldap_entry_t *delEntry = NULL; int i; ns_ldap_result_t *res = *result; #ifdef DEBUG (void) fprintf(stderr, "__ns_ldap_freeResult START\n"); #endif if (res == NULL) return (NS_LDAP_INVALID_PARAM); if (res->entry != NULL) curEntry = res->entry; for (i = 0; i < res->entries_count; i++) { if (curEntry != NULL) { delEntry = curEntry; curEntry = curEntry->next; __ns_ldap_freeEntry(delEntry); } } free(res); *result = NULL; return (NS_LDAP_SUCCESS); } /*ARGSUSED*/ int __ns_ldap_auth(const ns_cred_t *auth, const int flags, ns_ldap_error_t **errorp, LDAPControl **serverctrls, LDAPControl **clientctrls) { ConnectionID connectionId = -1; Connection *conp; int rc = 0; int do_not_fail_if_new_pwd_reqd = 0; int nopasswd_acct_mgmt = 0; #ifdef DEBUG (void) fprintf(stderr, "__ns_ldap_auth START\n"); #endif *errorp = NULL; if (!auth) return (NS_LDAP_INVALID_PARAM); rc = __s_api_getConnection(NULL, flags | NS_LDAP_NEW_CONN, auth, &connectionId, &conp, errorp, do_not_fail_if_new_pwd_reqd, nopasswd_acct_mgmt); if (rc == NS_LDAP_OP_FAILED && *errorp) (void) __ns_ldap_freeError(errorp); if (connectionId > -1) DropConnection(connectionId, flags); return (rc); } char ** __ns_ldap_getAttr(const ns_ldap_entry_t *entry, const char *attrname) { int i; if (entry == NULL) return (NULL); for (i = 0; i < entry->attr_count; i++) { if (strcasecmp(entry->attr_pair[i]->attrname, attrname) == NULL) return (entry->attr_pair[i]->attrvalue); } return (NULL); } ns_ldap_attr_t * __ns_ldap_getAttrStruct(const ns_ldap_entry_t *entry, const char *attrname) { int i; if (entry == NULL) return (NULL); for (i = 0; i < entry->attr_count; i++) { if (strcasecmp(entry->attr_pair[i]->attrname, attrname) == NULL) return (entry->attr_pair[i]); } return (NULL); } /*ARGSUSED*/ int __ns_ldap_uid2dn(const char *uid, char **userDN, const ns_cred_t *cred, /* cred is ignored */ ns_ldap_error_t **errorp) { ns_ldap_result_t *result = NULL; char *filter, *userdata; char errstr[MAXERROR]; char **value; int rc = 0; int i = 0; size_t len; *errorp = NULL; *userDN = NULL; if ((uid == NULL) || (uid[0] == '\0')) return (NS_LDAP_INVALID_PARAM); while (uid[i] != '\0') { if (uid[i] == '=') { *userDN = strdup(uid); return (NS_LDAP_SUCCESS); } i++; } i = 0; while ((uid[i] != '\0') && (isdigit(uid[i]))) i++; if (uid[i] == '\0') { len = strlen(UIDNUMFILTER) + strlen(uid) + 1; filter = (char *)malloc(len); if (filter == NULL) { *userDN = NULL; return (NS_LDAP_MEMORY); } (void) snprintf(filter, len, UIDNUMFILTER, uid); len = strlen(UIDNUMFILTER_SSD) + strlen(uid) + 1; userdata = (char *)malloc(len); if (userdata == NULL) { *userDN = NULL; return (NS_LDAP_MEMORY); } (void) snprintf(userdata, len, UIDNUMFILTER_SSD, uid); } else { len = strlen(UIDFILTER) + strlen(uid) + 1; filter = (char *)malloc(len); if (filter == NULL) { *userDN = NULL; return (NS_LDAP_MEMORY); } (void) snprintf(filter, len, UIDFILTER, uid); len = strlen(UIDFILTER_SSD) + strlen(uid) + 1; userdata = (char *)malloc(len); if (userdata == NULL) { *userDN = NULL; return (NS_LDAP_MEMORY); } (void) snprintf(userdata, len, UIDFILTER_SSD, uid); } /* * we want to retrieve the DN as it appears in LDAP * hence the use of NS_LDAP_NOT_CVT_DN in flags */ rc = __ns_ldap_list("passwd", filter, __s_api_merge_SSD_filter, NULL, cred, NS_LDAP_NOT_CVT_DN, &result, errorp, NULL, userdata); free(filter); filter = NULL; free(userdata); userdata = NULL; if (rc != NS_LDAP_SUCCESS) { if (result) { (void) __ns_ldap_freeResult(&result); result = NULL; } return (rc); } if (result->entries_count > 1) { (void) __ns_ldap_freeResult(&result); result = NULL; *userDN = NULL; (void) sprintf(errstr, gettext("Too many entries are returned for %s"), uid); MKERROR(LOG_WARNING, *errorp, NS_LDAP_INTERNAL, strdup(errstr), NULL); return (NS_LDAP_INTERNAL); } value = __ns_ldap_getAttr(result->entry, "dn"); *userDN = strdup(value[0]); (void) __ns_ldap_freeResult(&result); result = NULL; return (NS_LDAP_SUCCESS); } /*ARGSUSED*/ int __ns_ldap_host2dn(const char *host, const char *domain, char **hostDN, const ns_cred_t *cred, /* cred is ignored */ ns_ldap_error_t **errorp) { ns_ldap_result_t *result = NULL; char *filter, *userdata; char errstr[MAXERROR]; char **value; int rc; size_t len; /* * XXX * the domain parameter needs to be used in case domain is not local, if * this routine is to support multi domain setups, it needs lots of work... */ *errorp = NULL; *hostDN = NULL; if ((host == NULL) || (host[0] == '\0')) return (NS_LDAP_INVALID_PARAM); len = strlen(HOSTFILTER) + strlen(host) + 1; filter = (char *)malloc(len); if (filter == NULL) { return (NS_LDAP_MEMORY); } (void) snprintf(filter, len, HOSTFILTER, host); len = strlen(HOSTFILTER_SSD) + strlen(host) + 1; userdata = (char *)malloc(len); if (userdata == NULL) { return (NS_LDAP_MEMORY); } (void) snprintf(userdata, len, HOSTFILTER_SSD, host); /* * we want to retrieve the DN as it appears in LDAP * hence the use of NS_LDAP_NOT_CVT_DN in flags */ rc = __ns_ldap_list("hosts", filter, __s_api_merge_SSD_filter, NULL, cred, NS_LDAP_NOT_CVT_DN, &result, errorp, NULL, userdata); free(filter); filter = NULL; free(userdata); userdata = NULL; if (rc != NS_LDAP_SUCCESS) { if (result) { (void) __ns_ldap_freeResult(&result); result = NULL; } return (rc); } if (result->entries_count > 1) { (void) __ns_ldap_freeResult(&result); result = NULL; *hostDN = NULL; (void) sprintf(errstr, gettext("Too many entries are returned for %s"), host); MKERROR(LOG_WARNING, *errorp, NS_LDAP_INTERNAL, strdup(errstr), NULL); return (NS_LDAP_INTERNAL); } value = __ns_ldap_getAttr(result->entry, "dn"); *hostDN = strdup(value[0]); (void) __ns_ldap_freeResult(&result); result = NULL; return (NS_LDAP_SUCCESS); } /*ARGSUSED*/ int __ns_ldap_dn2domain(const char *dn, char **domain, const ns_cred_t *cred, ns_ldap_error_t **errorp) { int rc, pnum, i, j, len = 0; char *newdn, **rdns = NULL; char **dns, *dn1; *errorp = NULL; if (domain == NULL) return (NS_LDAP_INVALID_PARAM); else *domain = NULL; if ((dn == NULL) || (dn[0] == '\0')) return (NS_LDAP_INVALID_PARAM); /* * break dn into rdns */ dn1 = strdup(dn); if (dn1 == NULL) return (NS_LDAP_MEMORY); rdns = ldap_explode_dn(dn1, 0); free(dn1); if (rdns == NULL || *rdns == NULL) return (NS_LDAP_INVALID_PARAM); for (i = 0; rdns[i]; i++) len += strlen(rdns[i]) + 1; pnum = i; newdn = (char *)malloc(len + 1); dns = (char **)calloc(pnum, sizeof (char *)); if (newdn == NULL || dns == NULL) { if (newdn) free(newdn); ldap_value_free(rdns); return (NS_LDAP_MEMORY); } /* construct a semi-normalized dn, newdn */ *newdn = '\0'; for (i = 0; rdns[i]; i++) { dns[i] = newdn + strlen(newdn); (void) strcat(newdn, __s_api_remove_rdn_space(rdns[i])); (void) strcat(newdn, ","); } /* remove the last ',' */ newdn[strlen(newdn) - 1] = '\0'; ldap_value_free(rdns); /* * loop and find the domain name associated with newdn, * removing rdn one by one from left to right */ for (i = 0; i < pnum; i++) { if (*errorp) (void) __ns_ldap_freeError(errorp); /* * try cache manager first */ rc = __s_api_get_cachemgr_data(NS_CACHE_DN2DOMAIN, dns[i], domain); if (rc != NS_LDAP_SUCCESS) { /* * try ldap server second */ rc = __s_api_find_domainname(dns[i], domain, cred, errorp); } else { /* * skip the last one, * since it is already cached by ldap_cachemgr */ i--; } if (rc == NS_LDAP_SUCCESS) { if (__s_api_nscd_proc()) { /* * If it's nscd, ask cache manager to save the * dn to domain mapping(s) */ for (j = 0; j <= i; j++) { (void) __s_api_set_cachemgr_data( NS_CACHE_DN2DOMAIN, dns[j], *domain); } } break; } } free(dns); free(newdn); if (rc != NS_LDAP_SUCCESS) rc = NS_LDAP_NOTFOUND; return (rc); } /*ARGSUSED*/ int __ns_ldap_getServiceAuthMethods(const char *service, ns_auth_t ***auth, ns_ldap_error_t **errorp) { char errstr[MAXERROR]; int rc, i, done = 0; int slen; void **param; char **sam, *srv, *send; ns_auth_t **authpp = NULL, *ap; int cnt, max; ns_config_t *cfg; ns_ldap_error_t *error = NULL; if (errorp == NULL) return (NS_LDAP_INVALID_PARAM); *errorp = NULL; if ((service == NULL) || (service[0] == '\0') || (auth == NULL)) return (NS_LDAP_INVALID_PARAM); *auth = NULL; rc = __ns_ldap_getParam(NS_LDAP_SERVICE_AUTH_METHOD_P, ¶m, &error); if (rc != NS_LDAP_SUCCESS || param == NULL) { *errorp = error; return (rc); } sam = (char **)param; cfg = __s_api_get_default_config(); cnt = 0; slen = strlen(service); for (; *sam; sam++) { srv = *sam; if (strncasecmp(service, srv, slen) != 0) continue; srv += slen; if (*srv != COLONTOK) continue; send = srv; srv++; for (max = 1; (send = strchr(++send, SEMITOK)) != NULL; max++) {} authpp = (ns_auth_t **)calloc(++max, sizeof (ns_auth_t *)); if (authpp == NULL) { (void) __ns_ldap_freeParam(¶m); __s_api_release_config(cfg); return (NS_LDAP_MEMORY); } while (!done) { send = strchr(srv, SEMITOK); if (send != NULL) { *send = '\0'; send++; } i = __s_get_enum_value(cfg, srv, NS_LDAP_AUTH_P); if (i == -1) { (void) __ns_ldap_freeParam(¶m); (void) sprintf(errstr, gettext("Unsupported " "serviceAuthenticationMethod: %s.\n"), srv); MKERROR(LOG_WARNING, *errorp, NS_CONFIG_SYNTAX, strdup(errstr), NULL); __s_api_release_config(cfg); return (NS_LDAP_CONFIG); } ap = __s_api_AuthEnumtoStruct((EnumAuthType_t)i); if (ap == NULL) { (void) __ns_ldap_freeParam(¶m); __s_api_release_config(cfg); return (NS_LDAP_MEMORY); } authpp[cnt++] = ap; if (send == NULL) done = TRUE; else srv = send; } } *auth = authpp; (void) __ns_ldap_freeParam(¶m); __s_api_release_config(cfg); return (NS_LDAP_SUCCESS); } /* * This routine is called when certain scenario occurs * e.g. * service == auto_home * SSD = automount: ou = mytest, * NS_LDAP_MAPATTRIBUTE= auto_home: automountMapName=AAA * NS_LDAP_OBJECTCLASSMAP= auto_home:automountMap=MynisMap * NS_LDAP_OBJECTCLASSMAP= auto_home:automount=MynisObject * * The automountMapName is prepended implicitely but is mapped * to AAA. So dn could appers as * dn: AAA=auto_home,ou=bar,dc=foo,dc=com * dn: automountKey=user_01,AAA=auto_home,ou=bar,dc=foo,dc=com * dn: automountKey=user_02,AAA=auto_home,ou=bar,dc=foo,dc=com * in the directory. * This function is called to covert the mapped attr back to * orig attr when the entries are searched and returned */ int __s_api_convert_automountmapname(const char *service, char **dn, ns_ldap_error_t **errp) { char **mapping = NULL; char *mapped_attr = NULL; char *automountmapname = "automountMapName"; char *buffer = NULL; int rc = NS_LDAP_SUCCESS; char errstr[MAXERROR]; /* * dn is an input/out parameter, check it first */ if (service == NULL || dn == NULL || *dn == NULL) return (NS_LDAP_INVALID_PARAM); /* * Check to see if there is a mapped attribute for auto_xxx */ mapping = __ns_ldap_getMappedAttributes(service, automountmapname); /* * if no mapped attribute for auto_xxx, try automount */ if (mapping == NULL) mapping = __ns_ldap_getMappedAttributes( "automount", automountmapname); /* * if no mapped attribute is found, return SUCCESS (no op) */ if (mapping == NULL) return (NS_LDAP_SUCCESS); /* * if the mapped attribute is found and attr is not empty, * copy it */ if (mapping[0] != NULL) { mapped_attr = strdup(mapping[0]); __s_api_free2dArray(mapping); if (mapped_attr == NULL) { return (NS_LDAP_MEMORY); } } else { __s_api_free2dArray(mapping); (void) snprintf(errstr, (2 * MAXERROR), gettext( "Attribute nisMapName is mapped to an " "empty string.\n")); MKERROR(LOG_ERR, *errp, NS_CONFIG_SYNTAX, strdup(errstr), NULL); return (NS_LDAP_CONFIG); } /* * Locate the mapped attribute in the dn * and replace it if it exists */ rc = __s_api_replace_mapped_attr_in_dn( (const char *) automountmapname, (const char *) mapped_attr, (const char *) *dn, &buffer); /* clean up */ free(mapped_attr); /* * If mapped attr is found(buffer != NULL) * a new dn is returned * If no mapped attribute is in dn, * return NS_LDAP_SUCCESS (no op) * If no memory, * return NS_LDAP_MEMORY (no op) */ if (buffer != NULL) { free(*dn); *dn = buffer; } return (rc); } /* * If the mapped attr is found in the dn, * return NS_LDAP_SUCCESS and a new_dn. * If no mapped attr is found, * return NS_LDAP_SUCCESS and *new_dn == NULL * If there is not enough memory, * return NS_LDAP_MEMORY and *new_dn == NULL */ int __s_api_replace_mapped_attr_in_dn( const char *orig_attr, const char *mapped_attr, const char *dn, char **new_dn) { char **dnArray = NULL; char *cur = NULL, *start = NULL; int i = 0, found = 0; int len = 0, orig_len = 0, mapped_len = 0; int dn_len = 0, tmp_len = 0; *new_dn = NULL; /* * seperate dn into individual componets * e.g. * "automountKey=user_01" , "automountMapName_test=auto_home", ... */ dnArray = ldap_explode_dn(dn, 0); /* * This will find "mapped attr=value" in dn. * It won't find match if mapped attr appears * in the value. */ for (i = 0; dnArray[i] != NULL; i++) { /* * This function is called when reading from * the directory so assume each component has "=". * Any ill formatted dn should be rejected * before adding to the directory */ cur = strchr(dnArray[i], '='); *cur = '\0'; if (strcasecmp(mapped_attr, dnArray[i]) == 0) found = 1; *cur = '='; if (found) break; } if (!found) { __s_api_free2dArray(dnArray); *new_dn = NULL; return (NS_LDAP_SUCCESS); } /* * The new length is *dn length + (difference between * orig attr and mapped attr) + 1 ; * e.g. * automountKey=aa,automountMapName_test=auto_home,dc=foo,dc=com * ==> * automountKey=aa,automountMapName=auto_home,dc=foo,dc=com */ mapped_len = strlen(mapped_attr); orig_len = strlen(orig_attr); dn_len = strlen(dn); len = dn_len + orig_len - mapped_len + 1; *new_dn = (char *)calloc(1, len); if (*new_dn == NULL) { __s_api_free2dArray(dnArray); return (NS_LDAP_MEMORY); } /* * Locate the mapped attr in the dn. * Use dnArray[i] instead of mapped_attr * because mapped_attr could appear in * the value */ cur = strstr(dn, dnArray[i]); __s_api_free2dArray(dnArray); /* copy the portion before mapped attr in dn */ start = *new_dn; tmp_len = cur - dn; (void) memcpy((void *) start, (const void*) dn, tmp_len); /* * Copy the orig_attr. e.g. automountMapName * This replaces mapped attr with orig attr */ start = start + (cur - dn); /* move cursor in buffer */ (void) memcpy((void *) start, (const void*) orig_attr, orig_len); /* * Copy the portion after mapped attr in dn */ cur = cur + mapped_len; /* move cursor in dn */ start = start + orig_len; /* move cursor in buffer */ (void) strcpy(start, cur); return (NS_LDAP_SUCCESS); } /* * Validate Filter functions */ /* ***** Start of modified libldap.so.5 filter parser ***** */ /* filter parsing routine forward references */ static int adj_filter_list(char *str); static int adj_simple_filter(char *str); static int unescape_filterval(char *val); static int hexchar2int(char c); static int adj_substring_filter(char *val); /* * assumes string manipulation is in-line * and all strings are sufficient in size * return value is the position after 'c' */ static char * resync_str(char *str, char *next, char c) { char *ret; ret = str + strlen(str); *next = c; if (ret == next) return (ret); (void) strcat(str, next); return (ret); } static char * find_right_paren(char *s) { int balance, escape; balance = 1; escape = 0; while (*s && balance) { if (escape == 0) { if (*s == '(') balance++; else if (*s == ')') balance--; } if (*s == '\\' && ! escape) escape = 1; else escape = 0; if (balance) s++; } return (*s ? s : NULL); } static char * adj_complex_filter(char *str) { char *next; /* * We have (x(filter)...) with str sitting on * the x. We have to find the paren matching * the one before the x and put the intervening * filters by calling adj_filter_list(). */ str++; if ((next = find_right_paren(str)) == NULL) return (NULL); *next = '\0'; if (adj_filter_list(str) == -1) return (NULL); next = resync_str(str, next, ')'); next++; return (next); } static int adj_filter(char *str) { char *next; int parens, balance, escape; char *np, *cp, *dp; parens = 0; while (*str) { switch (*str) { case '(': str++; parens++; switch (*str) { case '&': if ((str = adj_complex_filter(str)) == NULL) return (-1); parens--; break; case '|': if ((str = adj_complex_filter(str)) == NULL) return (-1); parens--; break; case '!': if ((str = adj_complex_filter(str)) == NULL) return (-1); parens--; break; case '(': /* illegal ((case - generated by conversion */ /* find missing close) */ np = find_right_paren(str+1); /* error if not found */ if (np == NULL) return (-1); /* remove redundant (and) */ for (dp = str, cp = str+1; cp < np; ) { *dp++ = *cp++; } cp++; while (*cp) *dp++ = *cp++; *dp = '\0'; /* re-start test at original ( */ parens--; str--; break; default: balance = 1; escape = 0; next = str; while (*next && balance) { if (escape == 0) { if (*next == '(') balance++; else if (*next == ')') balance--; } if (*next == '\\' && ! escape) escape = 1; else escape = 0; if (balance) next++; } if (balance != 0) return (-1); *next = '\0'; if (adj_simple_filter(str) == -1) { return (-1); } next = resync_str(str, next, ')'); next++; str = next; parens--; break; } break; case ')': str++; parens--; break; case ' ': str++; break; default: /* assume it's a simple type=value filter */ next = strchr(str, '\0'); if (adj_simple_filter(str) == -1) { return (-1); } str = next; break; } } return (parens ? -1 : 0); } /* * Put a list of filters like this "(filter1)(filter2)..." */ static int adj_filter_list(char *str) { char *next; char save; while (*str) { while (*str && isspace(*str)) str++; if (*str == '\0') break; if ((next = find_right_paren(str + 1)) == NULL) return (-1); save = *++next; /* now we have "(filter)" with str pointing to it */ *next = '\0'; if (adj_filter(str) == -1) return (-1); next = resync_str(str, next, save); str = next; } return (0); } /* * is_valid_attr - returns 1 if a is a syntactically valid left-hand side * of a filter expression, 0 otherwise. A valid string may contain only * letters, numbers, hyphens, semi-colons, colons and periods. examples: * cn * cn;lang-fr * 1.2.3.4;binary;dynamic * mail;dynamic * cn:dn:1.2.3.4 * * For compatibility with older servers, we also allow underscores in * attribute types, even through they are not allowed by the LDAPv3 RFCs. */ static int is_valid_attr(char *a) { for (; *a; a++) { if (!isascii(*a)) { return (0); } else if (!isalnum(*a)) { switch (*a) { case '-': case '.': case ';': case ':': case '_': break; /* valid */ default: return (0); } } } return (1); } static char * find_star(char *s) { for (; *s; ++s) { switch (*s) { case '*': return (s); case '\\': ++s; if (hexchar2int(s[0]) >= 0 && hexchar2int(s[1]) >= 0) ++s; default: break; } } return (NULL); } static int adj_simple_filter(char *str) { char *s, *s2, *s3, filterop; char *value; int ftype = 0; int rc; rc = -1; /* pessimistic */ if ((str = strdup(str)) == NULL) { return (rc); } if ((s = strchr(str, '=')) == NULL) { goto free_and_return; } value = s + 1; *s-- = '\0'; filterop = *s; if (filterop == '<' || filterop == '>' || filterop == '~' || filterop == ':') { *s = '\0'; } if (! is_valid_attr(str)) { goto free_and_return; } switch (filterop) { case '<': /* LDAP_FILTER_LE */ case '>': /* LDAP_FILTER_GE */ case '~': /* LDAP_FILTER_APPROX */ break; case ':': /* extended filter - v3 only */ /* * extended filter looks like this: * * [type][':dn'][':'oid]':='value * * where one of type or :oid is required. * */ s2 = s3 = NULL; if ((s2 = strrchr(str, ':')) == NULL) { goto free_and_return; } if (strcasecmp(s2, ":dn") == 0) { *s2 = '\0'; } else { *s2 = '\0'; if ((s3 = strrchr(str, ':')) != NULL) { if (strcasecmp(s3, ":dn") != 0) { goto free_and_return; } *s3 = '\0'; } } if (unescape_filterval(value) < 0) { goto free_and_return; } rc = 0; goto free_and_return; /* break; */ default: if (find_star(value) == NULL) { ftype = 0; /* LDAP_FILTER_EQUALITY */ } else if (strcmp(value, "*") == 0) { ftype = 1; /* LDAP_FILTER_PRESENT */ } else { rc = adj_substring_filter(value); goto free_and_return; } break; } if (ftype != 0) { /* == LDAP_FILTER_PRESENT */ rc = 0; } else if (unescape_filterval(value) >= 0) { rc = 0; } if (rc != -1) { rc = 0; } free_and_return: free(str); return (rc); } /* * Check in place both LDAPv2 (RFC-1960) and LDAPv3 (hexadecimal) escape * sequences within the null-terminated string 'val'. * * If 'val' contains invalid escape sequences we return -1. * Otherwise return 1 */ static int unescape_filterval(char *val) { int escape, firstdigit; char *s; firstdigit = 0; escape = 0; for (s = val; *s; s++) { if (escape) { /* * first try LDAPv3 escape (hexadecimal) sequence */ if (hexchar2int(*s) < 0) { if (firstdigit) { /* * LDAPv2 (RFC1960) escape sequence */ escape = 0; } else { return (-1); } } if (firstdigit) { firstdigit = 0; } else { escape = 0; } } else if (*s != '\\') { escape = 0; } else { escape = 1; firstdigit = 1; } } return (1); } /* * convert character 'c' that represents a hexadecimal digit to an integer. * if 'c' is not a hexidecimal digit [0-9A-Fa-f], -1 is returned. * otherwise the converted value is returned. */ static int hexchar2int(char c) { if (c >= '0' && c <= '9') { return (c - '0'); } if (c >= 'A' && c <= 'F') { return (c - 'A' + 10); } if (c >= 'a' && c <= 'f') { return (c - 'a' + 10); } return (-1); } static int adj_substring_filter(char *val) { char *nextstar; for (; val != NULL; val = nextstar) { if ((nextstar = find_star(val)) != NULL) { *nextstar++ = '\0'; } if (*val != '\0') { if (unescape_filterval(val) < 0) { return (-1); } } } return (0); } /* ***** End of modified libldap.so.5 filter parser ***** */ /* * Walk filter, remove redundant parentheses in-line * verify that the filter is reasonable */ static int validate_filter(ns_ldap_cookie_t *cookie) { char *filter = cookie->filter; int rc; /* Parse filter looking for illegal values */ rc = adj_filter(filter); if (rc != 0) { return (NS_LDAP_OP_FAILED); } /* end of filter checking */ return (NS_LDAP_SUCCESS); } /* * Set the account management request control that needs to be sent to server. * This control is required to get the account management information of * a user to do local account checking. */ static int setup_acctmgmt_params(ns_ldap_cookie_t *cookie) { LDAPControl *req = NULL, **requestctrls; req = (LDAPControl *)malloc(sizeof (LDAPControl)); if (req == NULL) return (NS_LDAP_MEMORY); /* fill in the fields of this new control */ req->ldctl_iscritical = 1; req->ldctl_oid = strdup(NS_LDAP_ACCOUNT_USABLE_CONTROL); if (req->ldctl_oid == NULL) { free(req); return (NS_LDAP_MEMORY); } req->ldctl_value.bv_len = 0; req->ldctl_value.bv_val = NULL; requestctrls = (LDAPControl **)calloc(2, sizeof (LDAPControl *)); if (requestctrls == NULL) { ldap_control_free(req); return (NS_LDAP_MEMORY); } requestctrls[0] = req; cookie->p_serverctrls = requestctrls; return (NS_LDAP_SUCCESS); } /* * int get_new_acct_more_info(BerElement *ber, * AcctUsableResponse_t *acctResp) * * Decode the more_info data from an Account Management control response, * when the account is not usable and when code style is from recent LDAP * servers (see below comments for parse_acct_cont_resp_msg() to get more * details on coding styles and ASN1 description). * * Expected BER encoding: {tbtbtbtiti} * +t: tag is 0 * +b: TRUE if inactive due to account inactivation * +t: tag is 1 * +b: TRUE if password has been reset * +t: tag is 2 * +b: TRUE if password is expired * +t: tag is 3 * +i: contains num of remaining grace, 0 means no grace * +t: tag is 4 * +i: contains num of seconds before auto-unlock. -1 means acct is locked * forever (i.e. until reset) * * Asumptions: * - ber is not null * - acctResp is not null and is initialized with default values for the * fields in its AcctUsableResp.more_info structure * - the ber stream is received in the correct order, per the ASN1 description. * We do not check this order and make the asumption that it is correct. * Note that the ber stream may not (and will not in most cases) contain * all fields. */ static int get_new_acct_more_info(BerElement *ber, AcctUsableResponse_t *acctResp) { int rc = NS_LDAP_SUCCESS; char errstr[MAXERROR]; ber_tag_t rTag = LBER_DEFAULT; ber_len_t rLen = 0; ber_int_t rValue; char *last; int berRC = 0; /* * Look at what more_info BER element is/are left to be decoded. * look at each of them 1 by 1, without checking on their order * and possible multi values. */ for (rTag = ber_first_element(ber, &rLen, &last); rTag != LBER_END_OF_SEQORSET; rTag = ber_next_element(ber, &rLen, last)) { berRC = 0; switch (rTag) { case 0 | LBER_CLASS_CONTEXT | LBER_PRIMITIVE: /* inactive */ berRC = ber_scanf(ber, "b", &rValue); if (berRC != LBER_ERROR) { (acctResp->AcctUsableResp).more_info. inactive = (rValue != 0) ? 1 : 0; } break; case 1 | LBER_CLASS_CONTEXT | LBER_PRIMITIVE: /* reset */ berRC = ber_scanf(ber, "b", &rValue); if (berRC != LBER_ERROR) { (acctResp->AcctUsableResp).more_info.reset = (rValue != 0) ? 1 : 0; } break; case 2 | LBER_CLASS_CONTEXT | LBER_PRIMITIVE: /* expired */ berRC = ber_scanf(ber, "b", &rValue); if (berRC != LBER_ERROR) { (acctResp->AcctUsableResp).more_info.expired = (rValue != 0) ? 1 : 0; } break; case 3 | LBER_CLASS_CONTEXT | LBER_PRIMITIVE: /* remaining grace */ berRC = ber_scanf(ber, "i", &rValue); if (berRC != LBER_ERROR) { (acctResp->AcctUsableResp).more_info.rem_grace = rValue; } break; case 4 | LBER_CLASS_CONTEXT | LBER_PRIMITIVE: /* seconds before unlock */ berRC = ber_scanf(ber, "i", &rValue); if (berRC != LBER_ERROR) { (acctResp->AcctUsableResp).more_info. sec_b4_unlock = rValue; } break; default : (void) sprintf(errstr, gettext("invalid reason tag 0x%x"), rTag); syslog(LOG_DEBUG, "libsldap: %s", errstr); rc = NS_LDAP_INTERNAL; break; } if (berRC == LBER_ERROR) { (void) sprintf(errstr, gettext("error 0x%x decoding value for " "tag 0x%x"), berRC, rTag); syslog(LOG_DEBUG, "libsldap: %s", errstr); rc = NS_LDAP_INTERNAL; } if (rc != NS_LDAP_SUCCESS) { /* exit the for loop */ break; } } return (rc); } /* * int get_old_acct_opt_more_info(BerElement *ber, * AcctUsableResponse_t *acctResp) * * Decode the optional more_info data from an Account Management control * response, when the account is not usable and when code style is from LDAP * server 5.2p4 (see below comments for parse_acct_cont_resp_msg() to get more * details on coding styles and ASN1 description). * * Expected BER encoding: titi} * +t: tag is 2 * +i: contains num of remaining grace, 0 means no grace * +t: tag is 3 * +i: contains num of seconds before auto-unlock. -1 means acct is locked * forever (i.e. until reset) * * Asumptions: * - ber is a valid BER element * - acctResp is initialized for the fields in its AcctUsableResp.more_info * structure */ static int get_old_acct_opt_more_info(ber_tag_t tag, BerElement *ber, AcctUsableResponse_t *acctResp) { int rc = NS_LDAP_SUCCESS; char errstr[MAXERROR]; ber_len_t len; int rem_grace, sec_b4_unlock; switch (tag) { case 2: /* decode and maybe 3 is following */ if ((tag = ber_scanf(ber, "i", &rem_grace)) == LBER_ERROR) { (void) sprintf(errstr, gettext("Can not get " "rem_grace")); syslog(LOG_DEBUG, "libsldap: %s", errstr); rc = NS_LDAP_INTERNAL; break; } (acctResp->AcctUsableResp).more_info.rem_grace = rem_grace; if ((tag = ber_peek_tag(ber, &len)) == LBER_ERROR) { /* this is a success case, break to exit */ (void) sprintf(errstr, gettext("No more " "optional data")); syslog(LOG_DEBUG, "libsldap: %s", errstr); break; } if (tag == 3) { if (ber_scanf(ber, "i", &sec_b4_unlock) == LBER_ERROR) { (void) sprintf(errstr, gettext("Can not get sec_b4_unlock " "- 1st case")); syslog(LOG_DEBUG, "libsldap: %s", errstr); rc = NS_LDAP_INTERNAL; break; } (acctResp->AcctUsableResp).more_info.sec_b4_unlock = sec_b4_unlock; } else { /* unknown tag */ (void) sprintf(errstr, gettext("Unknown tag " "- 1st case")); syslog(LOG_DEBUG, "libsldap: %s", errstr); rc = NS_LDAP_INTERNAL; break; } break; case 3: if (ber_scanf(ber, "i", &sec_b4_unlock) == LBER_ERROR) { (void) sprintf(errstr, gettext("Can not get " "sec_b4_unlock - 2nd case")); syslog(LOG_DEBUG, "libsldap: %s", errstr); rc = NS_LDAP_INTERNAL; break; } (acctResp->AcctUsableResp).more_info.sec_b4_unlock = sec_b4_unlock; break; default: /* unknown tag */ (void) sprintf(errstr, gettext("Unknown tag - 2nd case")); syslog(LOG_DEBUG, "libsldap: %s", errstr); rc = NS_LDAP_INTERNAL; break; } return (rc); } /* * **** This function needs to be moved to libldap library **** * parse_acct_cont_resp_msg() parses the message received by server according to * following format (ASN1 notation): * * ACCOUNT_USABLE_RESPONSE::= CHOICE { * is_available [0] INTEGER, * ** seconds before expiration ** * is_not_available [1] more_info * } * more_info::= SEQUENCE { * inactive [0] BOOLEAN DEFAULT FALSE, * reset [1] BOOLEAN DEFAULT FALSE, * expired [2] BOOLEAN DEFAULT FALSE, * remaining_grace [3] INTEGER OPTIONAL, * seconds_before_unlock [4] INTEGER OPTIONAL * } */ /* * #define used to make the difference between coding style as done * by LDAP server 5.2p4 and newer LDAP servers. There are 4 values: * - DS52p4_USABLE: 5.2p4 coding style, account is usable * - DS52p4_NOT_USABLE: 5.2p4 coding style, account is not usable * - NEW_USABLE: newer LDAP servers coding style, account is usable * - NEW_NOT_USABLE: newer LDAP servers coding style, account is not usable * * An account would be considered not usable if for instance: * - it's been made inactive in the LDAP server * - or its password was reset in the LDAP server database * - or its password expired * - or the account has been locked, possibly forever */ #define DS52p4_USABLE 0x00 #define DS52p4_NOT_USABLE 0x01 #define NEW_USABLE 0x00 | LBER_CLASS_CONTEXT | LBER_PRIMITIVE #define NEW_NOT_USABLE 0x01 | LBER_CLASS_CONTEXT | LBER_CONSTRUCTED static int parse_acct_cont_resp_msg(LDAPControl **ectrls, AcctUsableResponse_t *acctResp) { int rc = NS_LDAP_SUCCESS; BerElement *ber; ber_tag_t tag; ber_len_t len; int i; char errstr[MAXERROR]; /* used for any coding style when account is usable */ int seconds_before_expiry; /* used for 5.2p4 coding style when account is not usable */ int inactive, reset, expired; if (ectrls == NULL) { (void) sprintf(errstr, gettext("Invalid ectrls parameter")); syslog(LOG_DEBUG, "libsldap: %s", errstr); return (NS_LDAP_INVALID_PARAM); } for (i = 0; ectrls[i] != NULL; i++) { if (strcmp(ectrls[i]->ldctl_oid, NS_LDAP_ACCOUNT_USABLE_CONTROL) == 0) { break; } } if (ectrls[i] == NULL) { /* Ldap control is not found */ (void) sprintf(errstr, gettext("Account Usable Control " "not found")); syslog(LOG_DEBUG, "libsldap: %s", errstr); return (NS_LDAP_NOTFOUND); } /* Allocate a BER element from the control value and parse it. */ if ((ber = ber_init(&ectrls[i]->ldctl_value)) == NULL) return (NS_LDAP_MEMORY); if ((tag = ber_peek_tag(ber, &len)) == LBER_ERROR) { /* Ldap decoding error */ (void) sprintf(errstr, gettext("Error decoding 1st tag")); syslog(LOG_DEBUG, "libsldap: %s", errstr); ber_free(ber, 1); return (NS_LDAP_INTERNAL); } switch (tag) { case DS52p4_USABLE: case NEW_USABLE: acctResp->choice = 0; if (ber_scanf(ber, "i", &seconds_before_expiry) == LBER_ERROR) { /* Ldap decoding error */ (void) sprintf(errstr, gettext("Can not get " "seconds_before_expiry")); syslog(LOG_DEBUG, "libsldap: %s", errstr); rc = NS_LDAP_INTERNAL; break; } /* ber_scanf() succeeded */ (acctResp->AcctUsableResp).seconds_before_expiry = seconds_before_expiry; break; case DS52p4_NOT_USABLE: acctResp->choice = 1; if (ber_scanf(ber, "{bbb", &inactive, &reset, &expired) == LBER_ERROR) { /* Ldap decoding error */ (void) sprintf(errstr, gettext("Can not get " "inactive/reset/expired")); syslog(LOG_DEBUG, "libsldap: %s", errstr); rc = NS_LDAP_INTERNAL; break; } /* ber_scanf() succeeded */ (acctResp->AcctUsableResp).more_info.inactive = ((inactive == 0) ? 0 : 1); (acctResp->AcctUsableResp).more_info.reset = ((reset == 0) ? 0 : 1); (acctResp->AcctUsableResp).more_info.expired = ((expired == 0) ? 0 : 1); (acctResp->AcctUsableResp).more_info.rem_grace = 0; (acctResp->AcctUsableResp).more_info.sec_b4_unlock = 0; if ((tag = ber_peek_tag(ber, &len)) == LBER_ERROR) { /* this is a success case, break to exit */ (void) sprintf(errstr, gettext("No optional data")); syslog(LOG_DEBUG, "libsldap: %s", errstr); break; } /* * Look at what optional more_info BER element is/are * left to be decoded. */ rc = get_old_acct_opt_more_info(tag, ber, acctResp); break; case NEW_NOT_USABLE: acctResp->choice = 1; /* * Recent LDAP servers won't code more_info data for default * values (see above comments on ASN1 description for what * fields have default values & what fields are optional). */ (acctResp->AcctUsableResp).more_info.inactive = 0; (acctResp->AcctUsableResp).more_info.reset = 0; (acctResp->AcctUsableResp).more_info.expired = 0; (acctResp->AcctUsableResp).more_info.rem_grace = 0; (acctResp->AcctUsableResp).more_info.sec_b4_unlock = 0; if (len == 0) { /* * Nothing else to decode; this is valid and we * use default values set above. */ (void) sprintf(errstr, gettext("more_info is " "empty, using default values")); syslog(LOG_DEBUG, "libsldap: %s", errstr); break; } /* * Look at what more_info BER element is/are left to * be decoded. */ rc = get_new_acct_more_info(ber, acctResp); break; default: (void) sprintf(errstr, gettext("unknwon coding style " "(tag: 0x%x)"), tag); syslog(LOG_DEBUG, "libsldap: %s", errstr); rc = NS_LDAP_INTERNAL; break; } ber_free(ber, 1); return (rc); } /* * __ns_ldap_getAcctMgmt() is called from pam account management stack * for retrieving accounting information of users with no user password - * eg. rlogin, rsh, etc. This function uses the account management control * request to do a search on the server for the user in question. The * response control returned from the server is got from the cookie. * Input params: username of whose account mgmt information is to be got * pointer to hold the parsed account management information * Return values: NS_LDAP_SUCCESS on success or appropriate error * code on failure */ int __ns_ldap_getAcctMgmt(const char *user, AcctUsableResponse_t *acctResp) { int scope, rc; char ldapfilter[1024]; ns_ldap_cookie_t *cookie; ns_ldap_search_desc_t **sdlist = NULL; ns_ldap_search_desc_t *dptr; ns_ldap_error_t *error = NULL; char **dns = NULL; char service[] = "shadow"; if (user == NULL || acctResp == NULL) return (NS_LDAP_INVALID_PARAM); /* Initialize State machine cookie */ cookie = init_search_state_machine(); if (cookie == NULL) return (NS_LDAP_MEMORY); /* see if need to follow referrals */ rc = __s_api_toFollowReferrals(0, &cookie->followRef, &error); if (rc != NS_LDAP_SUCCESS) { (void) __ns_ldap_freeError(&error); goto out; } /* get the service descriptor - or create a default one */ rc = __s_api_get_SSD_from_SSDtoUse_service(service, &sdlist, &error); if (rc != NS_LDAP_SUCCESS) { (void) __ns_ldap_freeError(&error); goto out; } if (sdlist == NULL) { /* Create default service Desc */ sdlist = (ns_ldap_search_desc_t **)calloc(2, sizeof (ns_ldap_search_desc_t *)); if (sdlist == NULL) { rc = NS_LDAP_MEMORY; goto out; } dptr = (ns_ldap_search_desc_t *) calloc(1, sizeof (ns_ldap_search_desc_t)); if (dptr == NULL) { free(sdlist); rc = NS_LDAP_MEMORY; goto out; } sdlist[0] = dptr; /* default base */ rc = __s_api_getDNs(&dns, service, &cookie->errorp); if (rc != NS_LDAP_SUCCESS) { if (dns) { __s_api_free2dArray(dns); dns = NULL; } (void) __ns_ldap_freeError(&(cookie->errorp)); cookie->errorp = NULL; goto out; } dptr->basedn = strdup(dns[0]); if (dptr->basedn == NULL) { free(sdlist); free(dptr); if (dns) { __s_api_free2dArray(dns); dns = NULL; } rc = NS_LDAP_MEMORY; goto out; } __s_api_free2dArray(dns); dns = NULL; /* default scope */ scope = 0; rc = __s_api_getSearchScope(&scope, &cookie->errorp); dptr->scope = scope; } cookie->sdlist = sdlist; cookie->service = strdup(service); if (cookie->service == NULL) { rc = NS_LDAP_MEMORY; goto out; } /* search for entries for this particular uid */ (void) snprintf(ldapfilter, sizeof (ldapfilter), "(uid=%s)", user); cookie->i_filter = strdup(ldapfilter); if (cookie->i_filter == NULL) { rc = NS_LDAP_MEMORY; goto out; } /* create the control request */ if ((rc = setup_acctmgmt_params(cookie)) != NS_LDAP_SUCCESS) goto out; /* Process search */ rc = search_state_machine(cookie, GET_ACCT_MGMT_INFO, 0); /* Copy results back to user */ rc = cookie->err_rc; if (rc != NS_LDAP_SUCCESS) (void) __ns_ldap_freeError(&(cookie->errorp)); if (cookie->result == NULL) goto out; if ((rc = parse_acct_cont_resp_msg(cookie->resultctrl, acctResp)) != NS_LDAP_SUCCESS) goto out; rc = NS_LDAP_SUCCESS; out: delete_search_cookie(cookie); return (rc); }