diff options
Diffstat (limited to 'source3/lib/tldap.c')
| -rw-r--r-- | source3/lib/tldap.c | 2726 |
1 files changed, 2726 insertions, 0 deletions
diff --git a/source3/lib/tldap.c b/source3/lib/tldap.c new file mode 100644 index 0000000..ad3232b --- /dev/null +++ b/source3/lib/tldap.c @@ -0,0 +1,2726 @@ +/* + Unix SMB/CIFS implementation. + Infrastructure for async ldap client requests + Copyright (C) Volker Lendecke 2009 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include "replace.h" +#include "tldap.h" +#include "system/network.h" +#include "system/locale.h" +#include "lib/util/talloc_stack.h" +#include "lib/util/samba_util.h" +#include "lib/util_tsock.h" +#include "../lib/util/asn1.h" +#include "../lib/tsocket/tsocket.h" +#include "../lib/util/tevent_unix.h" + +static TLDAPRC tldap_simple_recv(struct tevent_req *req); +static bool tldap_msg_set_pending(struct tevent_req *req); + +#define TEVENT_TLDAP_RC_MAGIC (0x87bcd26e) + +bool tevent_req_ldap_error(struct tevent_req *req, TLDAPRC rc) +{ + uint64_t err; + + if (TLDAP_RC_IS_SUCCESS(rc)) { + return false; + } + + err = TEVENT_TLDAP_RC_MAGIC; + err <<= 32; + err |= TLDAP_RC_V(rc); + + return tevent_req_error(req, err); +} + +bool tevent_req_is_ldap_error(struct tevent_req *req, TLDAPRC *perr) +{ + enum tevent_req_state state; + uint64_t err; + + if (!tevent_req_is_error(req, &state, &err)) { + return false; + } + switch (state) { + case TEVENT_REQ_TIMED_OUT: + *perr = TLDAP_TIMEOUT; + break; + case TEVENT_REQ_NO_MEMORY: + *perr = TLDAP_NO_MEMORY; + break; + case TEVENT_REQ_USER_ERROR: + if ((err >> 32) != TEVENT_TLDAP_RC_MAGIC) { + abort(); + } + *perr = TLDAP_RC(err & 0xffffffff); + break; + default: + *perr = TLDAP_OPERATIONS_ERROR; + break; + } + return true; +} + +struct tldap_ctx_attribute { + char *name; + void *ptr; +}; + +struct tldap_context { + int ld_version; + struct tstream_context *conn; + int msgid; + struct tevent_queue *outgoing; + struct tevent_req **pending; + struct tevent_req *read_req; + + /* For the sync wrappers we need something like get_last_error... */ + struct tldap_message *last_msg; + + /* debug */ + void (*log_fn)(void *context, enum tldap_debug_level level, + const char *fmt, va_list ap); + void *log_private; + + struct tldap_ctx_attribute *ctx_attrs; +}; + +struct tldap_message { + struct asn1_data *data; + uint8_t *inbuf; + int type; + int id; + + /* RESULT_ENTRY */ + char *dn; + struct tldap_attribute *attribs; + + /* Error data sent by the server */ + TLDAPRC lderr; + char *res_matcheddn; + char *res_diagnosticmessage; + char *res_referral; + DATA_BLOB res_serverSaslCreds; + struct tldap_control *res_sctrls; + + /* Controls sent by the server */ + struct tldap_control *ctrls; +}; + +void tldap_set_debug(struct tldap_context *ld, + void (*log_fn)(void *log_private, + enum tldap_debug_level level, + const char *fmt, + va_list ap) PRINTF_ATTRIBUTE(3,0), + void *log_private) +{ + ld->log_fn = log_fn; + ld->log_private = log_private; +} + +static void tldap_debug( + struct tldap_context *ld, + enum tldap_debug_level level, + const char *fmt, ...) PRINTF_ATTRIBUTE(3,4); + +static void tldap_debug(struct tldap_context *ld, + enum tldap_debug_level level, + const char *fmt, ...) +{ + va_list ap; + if (!ld) { + return; + } + if (ld->log_fn == NULL) { + return; + } + va_start(ap, fmt); + ld->log_fn(ld->log_private, level, fmt, ap); + va_end(ap); +} + +static int tldap_next_msgid(struct tldap_context *ld) +{ + int result; + + result = ld->msgid++; + if (ld->msgid == INT_MAX) { + ld->msgid = 1; + } + return result; +} + +struct tldap_context *tldap_context_create(TALLOC_CTX *mem_ctx, int fd) +{ + struct tldap_context *ctx; + int ret; + + ctx = talloc_zero(mem_ctx, struct tldap_context); + if (ctx == NULL) { + return NULL; + } + ret = tstream_bsd_existing_socket(ctx, fd, &ctx->conn); + if (ret == -1) { + TALLOC_FREE(ctx); + return NULL; + } + ctx->msgid = 1; + ctx->ld_version = 3; + ctx->outgoing = tevent_queue_create(ctx, "tldap_outgoing"); + if (ctx->outgoing == NULL) { + TALLOC_FREE(ctx); + return NULL; + } + return ctx; +} + +bool tldap_connection_ok(struct tldap_context *ld) +{ + int ret; + + if (ld == NULL) { + return false; + } + + if (ld->conn == NULL) { + return false; + } + + ret = tstream_pending_bytes(ld->conn); + if (ret == -1) { + return false; + } + + return true; +} + +static size_t tldap_pending_reqs(struct tldap_context *ld) +{ + return talloc_array_length(ld->pending); +} + +struct tstream_context *tldap_get_tstream(struct tldap_context *ld) +{ + return ld->conn; +} + +void tldap_set_tstream(struct tldap_context *ld, + struct tstream_context *stream) +{ + ld->conn = stream; +} + +static struct tldap_ctx_attribute *tldap_context_findattr( + struct tldap_context *ld, const char *name) +{ + size_t i, num_attrs; + + num_attrs = talloc_array_length(ld->ctx_attrs); + + for (i=0; i<num_attrs; i++) { + if (strcmp(ld->ctx_attrs[i].name, name) == 0) { + return &ld->ctx_attrs[i]; + } + } + return NULL; +} + +bool tldap_context_setattr(struct tldap_context *ld, + const char *name, const void *_pptr) +{ + struct tldap_ctx_attribute *tmp, *attr; + char *tmpname; + int num_attrs; + void **pptr = (void **)discard_const_p(void,_pptr); + + attr = tldap_context_findattr(ld, name); + if (attr != NULL) { + /* + * We don't actually delete attrs, we don't expect tons of + * attributes being shuffled around. + */ + TALLOC_FREE(attr->ptr); + if (*pptr != NULL) { + attr->ptr = talloc_move(ld->ctx_attrs, pptr); + *pptr = NULL; + } + return true; + } + + tmpname = talloc_strdup(ld, name); + if (tmpname == NULL) { + return false; + } + + num_attrs = talloc_array_length(ld->ctx_attrs); + + tmp = talloc_realloc(ld, ld->ctx_attrs, struct tldap_ctx_attribute, + num_attrs+1); + if (tmp == NULL) { + TALLOC_FREE(tmpname); + return false; + } + tmp[num_attrs].name = talloc_move(tmp, &tmpname); + if (*pptr != NULL) { + tmp[num_attrs].ptr = talloc_move(tmp, pptr); + } else { + tmp[num_attrs].ptr = NULL; + } + *pptr = NULL; + ld->ctx_attrs = tmp; + return true; +} + +void *tldap_context_getattr(struct tldap_context *ld, const char *name) +{ + struct tldap_ctx_attribute *attr = tldap_context_findattr(ld, name); + + if (attr == NULL) { + return NULL; + } + return attr->ptr; +} + +struct read_ldap_state { + uint8_t *buf; + bool done; +}; + +static ssize_t read_ldap_more(uint8_t *buf, size_t buflen, void *private_data); +static void read_ldap_done(struct tevent_req *subreq); + +static struct tevent_req *read_ldap_send(TALLOC_CTX *mem_ctx, + struct tevent_context *ev, + struct tstream_context *conn) +{ + struct tevent_req *req, *subreq; + struct read_ldap_state *state; + + req = tevent_req_create(mem_ctx, &state, struct read_ldap_state); + if (req == NULL) { + return NULL; + } + state->done = false; + + subreq = tstream_read_packet_send(state, ev, conn, 2, read_ldap_more, + state); + if (tevent_req_nomem(subreq, req)) { + return tevent_req_post(req, ev); + } + tevent_req_set_callback(subreq, read_ldap_done, req); + return req; +} + +static ssize_t read_ldap_more(uint8_t *buf, size_t buflen, void *private_data) +{ + struct read_ldap_state *state = talloc_get_type_abort( + private_data, struct read_ldap_state); + size_t len; + int i, lensize; + + if (state->done) { + /* We've been here, we're done */ + return 0; + } + + /* + * From ldap.h: LDAP_TAG_MESSAGE is 0x30 + */ + if (buf[0] != 0x30) { + return -1; + } + + len = buf[1]; + if ((len & 0x80) == 0) { + state->done = true; + return len; + } + + lensize = (len & 0x7f); + len = 0; + + if (buflen == 2) { + /* Please get us the full length */ + return lensize; + } + if (buflen > 2 + lensize) { + state->done = true; + return 0; + } + if (buflen != 2 + lensize) { + return -1; + } + + for (i=0; i<lensize; i++) { + len = (len << 8) | buf[2+i]; + } + return len; +} + +static void read_ldap_done(struct tevent_req *subreq) +{ + struct tevent_req *req = tevent_req_callback_data( + subreq, struct tevent_req); + struct read_ldap_state *state = tevent_req_data( + req, struct read_ldap_state); + ssize_t nread; + int err; + + nread = tstream_read_packet_recv(subreq, state, &state->buf, &err); + TALLOC_FREE(subreq); + if (nread == -1) { + tevent_req_error(req, err); + return; + } + tevent_req_done(req); +} + +static ssize_t read_ldap_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx, + uint8_t **pbuf, int *perrno) +{ + struct read_ldap_state *state = tevent_req_data( + req, struct read_ldap_state); + + if (tevent_req_is_unix_error(req, perrno)) { + return -1; + } + *pbuf = talloc_move(mem_ctx, &state->buf); + return talloc_get_size(*pbuf); +} + +struct tldap_msg_state { + struct tldap_context *ld; + struct tevent_context *ev; + int id; + struct iovec iov; + + struct asn1_data *data; + uint8_t *inbuf; +}; + +static bool tldap_push_controls(struct asn1_data *data, + struct tldap_control *sctrls, + int num_sctrls) +{ + int i; + + if ((sctrls == NULL) || (num_sctrls == 0)) { + return true; + } + + if (!asn1_push_tag(data, ASN1_CONTEXT(0))) return false; + + for (i=0; i<num_sctrls; i++) { + struct tldap_control *c = &sctrls[i]; + if (!asn1_push_tag(data, ASN1_SEQUENCE(0))) return false; + if (!asn1_write_OctetString(data, c->oid, strlen(c->oid))) return false; + if (c->critical) { + if (!asn1_write_BOOLEAN(data, true)) return false; + } + if (c->value.data != NULL) { + if (!asn1_write_OctetString(data, c->value.data, + c->value.length)) return false; + } + if (!asn1_pop_tag(data)) return false; /* ASN1_SEQUENCE(0) */ + } + + return asn1_pop_tag(data); /* ASN1_CONTEXT(0) */ +} + +#define tldap_context_disconnect(ld, status) \ + _tldap_context_disconnect(ld, status, __location__) + +static void _tldap_context_disconnect(struct tldap_context *ld, + TLDAPRC status, + const char *location) +{ + if (ld->conn == NULL) { + /* + * We don't need to tldap_debug() on + * a potential 2nd run. + * + * The rest of the function would just + * be a noop for the 2nd run anyway. + */ + return; + } + + tldap_debug(ld, TLDAP_DEBUG_WARNING, + "tldap_context_disconnect: %s at %s\n", + tldap_rc2string(status), + location); + tevent_queue_stop(ld->outgoing); + TALLOC_FREE(ld->read_req); + TALLOC_FREE(ld->conn); + + while (talloc_array_length(ld->pending) > 0) { + struct tevent_req *req = NULL; + struct tldap_msg_state *state = NULL; + + req = ld->pending[0]; + state = tevent_req_data(req, struct tldap_msg_state); + tevent_req_defer_callback(req, state->ev); + tevent_req_ldap_error(req, status); + } +} + +static void tldap_msg_sent(struct tevent_req *subreq); +static void tldap_msg_received(struct tevent_req *subreq); + +static struct tevent_req *tldap_msg_send(TALLOC_CTX *mem_ctx, + struct tevent_context *ev, + struct tldap_context *ld, + int id, struct asn1_data *data, + struct tldap_control *sctrls, + int num_sctrls) +{ + struct tevent_req *req, *subreq; + struct tldap_msg_state *state; + DATA_BLOB blob; + bool ok; + + tldap_debug(ld, TLDAP_DEBUG_TRACE, "tldap_msg_send: sending msg %d\n", + id); + + req = tevent_req_create(mem_ctx, &state, struct tldap_msg_state); + if (req == NULL) { + return NULL; + } + state->ld = ld; + state->ev = ev; + state->id = id; + + ok = tldap_connection_ok(ld); + if (!ok) { + tevent_req_ldap_error(req, TLDAP_SERVER_DOWN); + return tevent_req_post(req, ev); + } + + if (!tldap_push_controls(data, sctrls, num_sctrls)) { + tevent_req_ldap_error(req, TLDAP_ENCODING_ERROR); + return tevent_req_post(req, ev); + } + + + if (!asn1_pop_tag(data)) { + tevent_req_ldap_error(req, TLDAP_ENCODING_ERROR); + return tevent_req_post(req, ev); + } + + if (!asn1_blob(data, &blob)) { + tevent_req_ldap_error(req, TLDAP_ENCODING_ERROR); + return tevent_req_post(req, ev); + } + + if (!tldap_msg_set_pending(req)) { + tevent_req_oom(req); + return tevent_req_post(req, ev);; + } + + state->iov.iov_base = (void *)blob.data; + state->iov.iov_len = blob.length; + + subreq = tstream_writev_queue_send(state, ev, ld->conn, ld->outgoing, + &state->iov, 1); + if (tevent_req_nomem(subreq, req)) { + return tevent_req_post(req, ev); + } + tevent_req_set_callback(subreq, tldap_msg_sent, req); + return req; +} + +static void tldap_msg_unset_pending(struct tevent_req *req) +{ + struct tldap_msg_state *state = tevent_req_data( + req, struct tldap_msg_state); + struct tldap_context *ld = state->ld; + int num_pending = tldap_pending_reqs(ld); + int i; + + tevent_req_set_cleanup_fn(req, NULL); + + for (i=0; i<num_pending; i++) { + if (req == ld->pending[i]) { + break; + } + } + if (i == num_pending) { + /* + * Something's seriously broken. Just returning here is the + * right thing nevertheless, the point of this routine is to + * remove ourselves from cli->pending. + */ + return; + } + + if (num_pending == 1) { + TALLOC_FREE(ld->pending); + return; + } + + /* + * Remove ourselves from the cli->pending array + */ + if (num_pending > 1) { + ld->pending[i] = ld->pending[num_pending-1]; + } + + /* + * No NULL check here, we're shrinking by sizeof(void *), and + * talloc_realloc just adjusts the size for this. + */ + ld->pending = talloc_realloc(NULL, ld->pending, struct tevent_req *, + num_pending - 1); +} + +static void tldap_msg_cleanup(struct tevent_req *req, + enum tevent_req_state req_state) +{ + tldap_msg_unset_pending(req); +} + +static bool tldap_msg_set_pending(struct tevent_req *req) +{ + struct tldap_msg_state *state = tevent_req_data( + req, struct tldap_msg_state); + struct tldap_context *ld; + struct tevent_req **pending; + int num_pending; + + ld = state->ld; + num_pending = tldap_pending_reqs(ld); + + pending = talloc_realloc(ld, ld->pending, struct tevent_req *, + num_pending+1); + if (pending == NULL) { + return false; + } + pending[num_pending] = req; + ld->pending = pending; + tevent_req_set_cleanup_fn(req, tldap_msg_cleanup); + + if (ld->read_req != NULL) { + return true; + } + + /* + * We're the first one, add the read_ldap request that waits for the + * answer from the server + */ + ld->read_req = read_ldap_send(ld->pending, state->ev, ld->conn); + if (ld->read_req == NULL) { + tldap_msg_unset_pending(req); + return false; + } + tevent_req_set_callback(ld->read_req, tldap_msg_received, ld); + return true; +} + +static void tldap_msg_sent(struct tevent_req *subreq) +{ + struct tevent_req *req = tevent_req_callback_data( + subreq, struct tevent_req); + struct tldap_msg_state *state = tevent_req_data( + req, struct tldap_msg_state); + ssize_t nwritten; + int err; + + nwritten = tstream_writev_queue_recv(subreq, &err); + TALLOC_FREE(subreq); + if (nwritten == -1) { + tldap_context_disconnect(state->ld, TLDAP_SERVER_DOWN); + return; + } +} + +static int tldap_msg_msgid(struct tevent_req *req) +{ + struct tldap_msg_state *state = tevent_req_data( + req, struct tldap_msg_state); + + return state->id; +} + +static void tldap_msg_received(struct tevent_req *subreq) +{ + struct tldap_context *ld = tevent_req_callback_data( + subreq, struct tldap_context); + struct tevent_req *req; + struct tldap_msg_state *state; + struct asn1_data *data; + uint8_t *inbuf; + ssize_t received; + size_t num_pending; + size_t i; + int err; + TLDAPRC status = TLDAP_PROTOCOL_ERROR; + int id; + uint8_t type; + bool ok; + + received = read_ldap_recv(subreq, talloc_tos(), &inbuf, &err); + TALLOC_FREE(subreq); + ld->read_req = NULL; + if (received == -1) { + status = TLDAP_SERVER_DOWN; + goto fail; + } + + data = asn1_init(talloc_tos(), ASN1_MAX_TREE_DEPTH); + if (data == NULL) { + /* + * We have to disconnect all, we can't tell which of + * the requests this reply is for. + */ + status = TLDAP_NO_MEMORY; + goto fail; + } + asn1_load_nocopy(data, inbuf, received); + + ok = true; + ok &= asn1_start_tag(data, ASN1_SEQUENCE(0)); + ok &= asn1_read_Integer(data, &id); + ok &= asn1_peek_uint8(data, &type); + + if (!ok) { + status = TLDAP_PROTOCOL_ERROR; + goto fail; + } + + tldap_debug(ld, TLDAP_DEBUG_TRACE, "tldap_msg_received: got msg %d " + "type %d\n", id, (int)type); + + if (id == 0) { + tldap_debug( + ld, + TLDAP_DEBUG_WARNING, + "tldap_msg_received: got msgid 0 of " + "type %"PRIu8", disconnecting\n", + type); + tldap_context_disconnect(ld, TLDAP_SERVER_DOWN); + return; + } + + num_pending = talloc_array_length(ld->pending); + + for (i=0; i<num_pending; i++) { + if (id == tldap_msg_msgid(ld->pending[i])) { + break; + } + } + if (i == num_pending) { + /* Dump unexpected reply */ + tldap_debug(ld, TLDAP_DEBUG_WARNING, "tldap_msg_received: " + "No request pending for msg %d\n", id); + TALLOC_FREE(data); + TALLOC_FREE(inbuf); + goto done; + } + + req = ld->pending[i]; + state = tevent_req_data(req, struct tldap_msg_state); + + state->inbuf = talloc_move(state, &inbuf); + state->data = talloc_move(state, &data); + + tldap_msg_unset_pending(req); + num_pending = talloc_array_length(ld->pending); + + tevent_req_defer_callback(req, state->ev); + tevent_req_done(req); + + done: + if (num_pending == 0) { + return; + } + + state = tevent_req_data(ld->pending[0], struct tldap_msg_state); + ld->read_req = read_ldap_send(ld->pending, state->ev, ld->conn); + if (ld->read_req == NULL) { + status = TLDAP_NO_MEMORY; + goto fail; + } + tevent_req_set_callback(ld->read_req, tldap_msg_received, ld); + return; + + fail: + tldap_context_disconnect(ld, status); +} + +static TLDAPRC tldap_msg_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx, + struct tldap_message **pmsg) +{ + struct tldap_msg_state *state = tevent_req_data( + req, struct tldap_msg_state); + struct tldap_message *msg; + TLDAPRC err; + uint8_t msgtype; + + if (tevent_req_is_ldap_error(req, &err)) { + return err; + } + + if (!asn1_peek_uint8(state->data, &msgtype)) { + return TLDAP_PROTOCOL_ERROR; + } + + if (pmsg == NULL) { + return TLDAP_SUCCESS; + } + + msg = talloc_zero(mem_ctx, struct tldap_message); + if (msg == NULL) { + return TLDAP_NO_MEMORY; + } + msg->id = state->id; + + msg->inbuf = talloc_move(msg, &state->inbuf); + msg->data = talloc_move(msg, &state->data); + msg->type = msgtype; + + *pmsg = msg; + return TLDAP_SUCCESS; +} + +struct tldap_req_state { + int id; + struct asn1_data *out; + struct tldap_message *result; +}; + +static struct tevent_req *tldap_req_create(TALLOC_CTX *mem_ctx, + struct tldap_context *ld, + struct tldap_req_state **pstate) +{ + struct tevent_req *req; + struct tldap_req_state *state; + + req = tevent_req_create(mem_ctx, &state, struct tldap_req_state); + if (req == NULL) { + return NULL; + } + state->out = asn1_init(state, ASN1_MAX_TREE_DEPTH); + if (state->out == NULL) { + goto err; + } + state->id = tldap_next_msgid(ld); + + if (!asn1_push_tag(state->out, ASN1_SEQUENCE(0))) goto err; + if (!asn1_write_Integer(state->out, state->id)) goto err; + + *pstate = state; + return req; + + err: + + TALLOC_FREE(req); + return NULL; +} + +static void tldap_save_msg(struct tldap_context *ld, struct tevent_req *req) +{ + struct tldap_req_state *state = tevent_req_data( + req, struct tldap_req_state); + + TALLOC_FREE(ld->last_msg); + ld->last_msg = talloc_move(ld, &state->result); +} + +static char *blob2string_talloc(TALLOC_CTX *mem_ctx, DATA_BLOB blob) +{ + char *result = talloc_array(mem_ctx, char, blob.length+1); + + if (result == NULL) { + return NULL; + } + + memcpy(result, blob.data, blob.length); + result[blob.length] = '\0'; + return result; +} + +static bool asn1_read_OctetString_talloc(TALLOC_CTX *mem_ctx, + struct asn1_data *data, + char **presult) +{ + DATA_BLOB string; + char *result; + if (!asn1_read_OctetString(data, mem_ctx, &string)) + return false; + + result = blob2string_talloc(mem_ctx, string); + + data_blob_free(&string); + + if (result == NULL) { + return false; + } + *presult = result; + return true; +} + +static bool tldap_decode_controls(struct tldap_req_state *state); + +static bool tldap_decode_response(struct tldap_req_state *state) +{ + struct asn1_data *data = state->result->data; + struct tldap_message *msg = state->result; + int rc; + bool ok = true; + + ok &= asn1_read_enumerated(data, &rc); + if (ok) { + msg->lderr = TLDAP_RC(rc); + } + + ok &= asn1_read_OctetString_talloc(msg, data, &msg->res_matcheddn); + ok &= asn1_read_OctetString_talloc(msg, data, + &msg->res_diagnosticmessage); + if (!ok) return ok; + if (asn1_peek_tag(data, ASN1_CONTEXT(3))) { + ok &= asn1_start_tag(data, ASN1_CONTEXT(3)); + ok &= asn1_read_OctetString_talloc(msg, data, + &msg->res_referral); + ok &= asn1_end_tag(data); + } else { + msg->res_referral = NULL; + } + + return ok; +} + +static void tldap_sasl_bind_done(struct tevent_req *subreq); + +struct tevent_req *tldap_sasl_bind_send(TALLOC_CTX *mem_ctx, + struct tevent_context *ev, + struct tldap_context *ld, + const char *dn, + const char *mechanism, + DATA_BLOB *creds, + struct tldap_control *sctrls, + int num_sctrls, + struct tldap_control *cctrls, + int num_cctrls) +{ + struct tevent_req *req, *subreq; + struct tldap_req_state *state; + + req = tldap_req_create(mem_ctx, ld, &state); + if (req == NULL) { + return NULL; + } + + if (dn == NULL) { + dn = ""; + } + + if (!asn1_push_tag(state->out, TLDAP_REQ_BIND)) goto err; + if (!asn1_write_Integer(state->out, ld->ld_version)) goto err; + if (!asn1_write_OctetString(state->out, dn, strlen(dn))) goto err; + + if (mechanism == NULL) { + if (!asn1_push_tag(state->out, ASN1_CONTEXT_SIMPLE(0))) goto err; + if (!asn1_write(state->out, creds->data, creds->length)) goto err; + if (!asn1_pop_tag(state->out)) goto err; + } else { + if (!asn1_push_tag(state->out, ASN1_CONTEXT(3))) goto err; + if (!asn1_write_OctetString(state->out, mechanism, + strlen(mechanism))) goto err; + if ((creds != NULL) && (creds->data != NULL)) { + if (!asn1_write_OctetString(state->out, creds->data, + creds->length)) goto err; + } + if (!asn1_pop_tag(state->out)) goto err; + } + + if (!asn1_pop_tag(state->out)) goto err; + + subreq = tldap_msg_send(state, ev, ld, state->id, state->out, + sctrls, num_sctrls); + if (tevent_req_nomem(subreq, req)) { + return tevent_req_post(req, ev); + } + tevent_req_set_callback(subreq, tldap_sasl_bind_done, req); + return req; + + err: + + tevent_req_ldap_error(req, TLDAP_ENCODING_ERROR); + return tevent_req_post(req, ev); +} + +static void tldap_sasl_bind_done(struct tevent_req *subreq) +{ + struct tevent_req *req = tevent_req_callback_data( + subreq, struct tevent_req); + struct tldap_req_state *state = tevent_req_data( + req, struct tldap_req_state); + TLDAPRC rc; + bool ok; + + rc = tldap_msg_recv(subreq, state, &state->result); + TALLOC_FREE(subreq); + if (tevent_req_ldap_error(req, rc)) { + return; + } + if (state->result->type != TLDAP_RES_BIND) { + tevent_req_ldap_error(req, TLDAP_PROTOCOL_ERROR); + return; + } + + ok = asn1_start_tag(state->result->data, TLDAP_RES_BIND); + ok &= tldap_decode_response(state); + + if (asn1_peek_tag(state->result->data, ASN1_CONTEXT_SIMPLE(7))) { + int len; + + ok &= asn1_start_tag(state->result->data, + ASN1_CONTEXT_SIMPLE(7)); + if (!ok) { + goto decode_error; + } + + len = asn1_tag_remaining(state->result->data); + if (len == -1) { + goto decode_error; + } + + state->result->res_serverSaslCreds = + data_blob_talloc(state->result, NULL, len); + if (state->result->res_serverSaslCreds.data == NULL) { + goto decode_error; + } + + ok = asn1_read(state->result->data, + state->result->res_serverSaslCreds.data, + state->result->res_serverSaslCreds.length); + + ok &= asn1_end_tag(state->result->data); + } + + ok &= asn1_end_tag(state->result->data); + + if (!ok) { + goto decode_error; + } + + if (!TLDAP_RC_IS_SUCCESS(state->result->lderr) && + !TLDAP_RC_EQUAL(state->result->lderr, + TLDAP_SASL_BIND_IN_PROGRESS)) { + tevent_req_ldap_error(req, state->result->lderr); + return; + } + tevent_req_done(req); + return; + +decode_error: + tevent_req_ldap_error(req, TLDAP_DECODING_ERROR); + return; +} + +TLDAPRC tldap_sasl_bind_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx, + DATA_BLOB *serverSaslCreds) +{ + struct tldap_req_state *state = tevent_req_data( + req, struct tldap_req_state); + TLDAPRC rc; + + if (tevent_req_is_ldap_error(req, &rc)) { + return rc; + } + + if (serverSaslCreds != NULL) { + serverSaslCreds->data = talloc_move( + mem_ctx, &state->result->res_serverSaslCreds.data); + serverSaslCreds->length = + state->result->res_serverSaslCreds.length; + } + + return state->result->lderr; +} + +TLDAPRC tldap_sasl_bind(struct tldap_context *ld, + const char *dn, + const char *mechanism, + DATA_BLOB *creds, + struct tldap_control *sctrls, + int num_sctrls, + struct tldap_control *cctrls, + int num_cctrls, + TALLOC_CTX *mem_ctx, + DATA_BLOB *serverSaslCreds) +{ + TALLOC_CTX *frame = talloc_stackframe(); + struct tevent_context *ev; + struct tevent_req *req; + TLDAPRC rc = TLDAP_NO_MEMORY; + + ev = samba_tevent_context_init(frame); + if (ev == NULL) { + goto fail; + } + req = tldap_sasl_bind_send(frame, ev, ld, dn, mechanism, creds, + sctrls, num_sctrls, cctrls, num_cctrls); + if (req == NULL) { + goto fail; + } + if (!tevent_req_poll(req, ev)) { + rc = TLDAP_OPERATIONS_ERROR; + goto fail; + } + rc = tldap_sasl_bind_recv(req, mem_ctx, serverSaslCreds); + tldap_save_msg(ld, req); + fail: + TALLOC_FREE(frame); + return rc; +} + +struct tevent_req *tldap_simple_bind_send(TALLOC_CTX *mem_ctx, + struct tevent_context *ev, + struct tldap_context *ld, + const char *dn, + const char *passwd) +{ + DATA_BLOB cred; + + if (passwd != NULL) { + cred.data = discard_const_p(uint8_t, passwd); + cred.length = strlen(passwd); + } else { + cred.data = discard_const_p(uint8_t, ""); + cred.length = 0; + } + return tldap_sasl_bind_send(mem_ctx, ev, ld, dn, NULL, &cred, NULL, 0, + NULL, 0); +} + +TLDAPRC tldap_simple_bind_recv(struct tevent_req *req) +{ + return tldap_sasl_bind_recv(req, NULL, NULL); +} + +TLDAPRC tldap_simple_bind(struct tldap_context *ld, const char *dn, + const char *passwd) +{ + DATA_BLOB cred; + + if (passwd != NULL) { + cred.data = discard_const_p(uint8_t, passwd); + cred.length = strlen(passwd); + } else { + cred.data = discard_const_p(uint8_t, ""); + cred.length = 0; + } + return tldap_sasl_bind(ld, dn, NULL, &cred, NULL, 0, NULL, 0, + NULL, NULL); +} + +/*****************************************************************************/ + +/* can't use isalpha() as only a strict set is valid for LDAP */ + +static bool tldap_is_alpha(char c) +{ + return (((c >= 'a') && (c <= 'z')) || \ + ((c >= 'A') && (c <= 'Z'))); +} + +static bool tldap_is_adh(char c) +{ + return tldap_is_alpha(c) || isdigit(c) || (c == '-'); +} + +#define TLDAP_FILTER_AND ASN1_CONTEXT(0) +#define TLDAP_FILTER_OR ASN1_CONTEXT(1) +#define TLDAP_FILTER_NOT ASN1_CONTEXT(2) +#define TLDAP_FILTER_EQ ASN1_CONTEXT(3) +#define TLDAP_FILTER_SUB ASN1_CONTEXT(4) +#define TLDAP_FILTER_LE ASN1_CONTEXT(5) +#define TLDAP_FILTER_GE ASN1_CONTEXT(6) +#define TLDAP_FILTER_PRES ASN1_CONTEXT_SIMPLE(7) +#define TLDAP_FILTER_APX ASN1_CONTEXT(8) +#define TLDAP_FILTER_EXT ASN1_CONTEXT(9) + +#define TLDAP_SUB_INI ASN1_CONTEXT_SIMPLE(0) +#define TLDAP_SUB_ANY ASN1_CONTEXT_SIMPLE(1) +#define TLDAP_SUB_FIN ASN1_CONTEXT_SIMPLE(2) + + +/* oid's should be numerical only in theory, + * but apparently some broken servers may have alphanum aliases instead. + * Do like openldap libraries and allow alphanum aliases for oids, but + * do not allow Tagging options in that case. + */ +static bool tldap_is_attrdesc(const char *s, int len, bool no_tagopts) +{ + bool is_oid = false; + bool dot = false; + int i; + + /* first char has stricter rules */ + if (isdigit(*s)) { + is_oid = true; + } else if (!tldap_is_alpha(*s)) { + /* bad first char */ + return false; + } + + for (i = 1; i < len; i++) { + + if (is_oid) { + if (isdigit(s[i])) { + dot = false; + continue; + } + if (s[i] == '.') { + if (dot) { + /* malformed */ + return false; + } + dot = true; + continue; + } + } else { + if (tldap_is_adh(s[i])) { + continue; + } + } + + if (s[i] == ';') { + if (no_tagopts) { + /* no tagging options */ + return false; + } + if (dot) { + /* malformed */ + return false; + } + if ((i + 1) == len) { + /* malformed */ + return false; + } + + is_oid = false; + continue; + } + } + + if (dot) { + /* malformed */ + return false; + } + + return true; +} + +/* this function copies the value until the closing parenthesis is found. */ +static char *tldap_get_val(TALLOC_CTX *memctx, + const char *value, const char **_s) +{ + const char *s = value; + + /* find terminator */ + while (*s) { + s = strchr(s, ')'); + if (s && (*(s - 1) == '\\')) { + s++; + continue; + } + break; + } + if (!s || !(*s == ')')) { + /* malformed filter */ + return NULL; + } + + *_s = s; + + return talloc_strndup(memctx, value, s - value); +} + +static int tldap_hex2char(const char *x) +{ + if (isxdigit(x[0]) && isxdigit(x[1])) { + const char h1 = x[0], h2 = x[1]; + int c = 0; + + if (h1 >= 'a') c = h1 - (int)'a' + 10; + else if (h1 >= 'A') c = h1 - (int)'A' + 10; + else if (h1 >= '0') c = h1 - (int)'0'; + c = c << 4; + if (h2 >= 'a') c += h2 - (int)'a' + 10; + else if (h2 >= 'A') c += h2 - (int)'A' + 10; + else if (h2 >= '0') c += h2 - (int)'0'; + + return c; + } + + return -1; +} + +static bool tldap_find_first_star(const char *val, const char **star) +{ + const char *s; + + for (s = val; *s; s++) { + switch (*s) { + case '\\': + if (isxdigit(s[1]) && isxdigit(s[2])) { + s += 2; + break; + } + /* not hex based escape, check older syntax */ + switch (s[1]) { + case '(': + case ')': + case '*': + case '\\': + s++; + break; + default: + /* invalid escape sequence */ + return false; + } + break; + case ')': + /* end of val, nothing found */ + *star = s; + return true; + + case '*': + *star = s; + return true; + } + } + + /* string ended without closing parenthesis, filter is malformed */ + return false; +} + +static bool tldap_unescape_inplace(char *value, size_t *val_len) +{ + int c; + size_t i, p; + + for (i = 0,p = 0; i < *val_len; i++) { + + switch (value[i]) { + case '(': + case ')': + case '*': + /* these must be escaped */ + return false; + + case '\\': + if (!value[i + 1]) { + /* invalid EOL */ + return false; + } + i++; + + /* LDAPv3 escaped */ + c = tldap_hex2char(&value[i]); + if (c >= 0 && c < 256) { + value[p] = c; + i++; + p++; + break; + } + + /* LDAPv2 escaped */ + switch (value[i]) { + case '(': + case ')': + case '*': + case '\\': + value[p] = value[i]; + p++; + + break; + default: + /* invalid */ + return false; + } + break; + + default: + value[p] = value[i]; + p++; + } + } + value[p] = '\0'; + *val_len = p; + return true; +} + +static bool tldap_push_filter_basic(struct tldap_context *ld, + struct asn1_data *data, + const char **_s); +static bool tldap_push_filter_substring(struct tldap_context *ld, + struct asn1_data *data, + const char *val, + const char **_s); +static bool tldap_push_filter_int(struct tldap_context *ld, + struct asn1_data *data, + const char **_s) +{ + const char *s = *_s; + bool ret; + + if (*s != '(') { + tldap_debug(ld, TLDAP_DEBUG_ERROR, + "Incomplete or malformed filter\n"); + return false; + } + s++; + + /* we are right after a parenthesis, + * find out what op we have at hand */ + switch (*s) { + case '&': + tldap_debug(ld, TLDAP_DEBUG_TRACE, "Filter op: AND\n"); + if (!asn1_push_tag(data, TLDAP_FILTER_AND)) return false; + s++; + break; + + case '|': + tldap_debug(ld, TLDAP_DEBUG_TRACE, "Filter op: OR\n"); + if (!asn1_push_tag(data, TLDAP_FILTER_OR)) return false; + s++; + break; + + case '!': + tldap_debug(ld, TLDAP_DEBUG_TRACE, "Filter op: NOT\n"); + if (!asn1_push_tag(data, TLDAP_FILTER_NOT)) return false; + s++; + ret = tldap_push_filter_int(ld, data, &s); + if (!ret) { + return false; + } + if (!asn1_pop_tag(data)) return false; + goto done; + + case '(': + case ')': + tldap_debug(ld, TLDAP_DEBUG_ERROR, + "Invalid parenthesis '%c'\n", *s); + return false; + + case '\0': + tldap_debug(ld, TLDAP_DEBUG_ERROR, + "Invalid filter termination\n"); + return false; + + default: + ret = tldap_push_filter_basic(ld, data, &s); + if (!ret) { + return false; + } + goto done; + } + + /* only and/or filters get here. + * go through the list of filters */ + + if (*s == ')') { + /* RFC 4526: empty and/or */ + if (!asn1_pop_tag(data)) return false; + goto done; + } + + while (*s) { + ret = tldap_push_filter_int(ld, data, &s); + if (!ret) { + return false; + } + + if (*s == ')') { + /* end of list, return */ + if (!asn1_pop_tag(data)) return false; + break; + } + } + +done: + if (*s != ')') { + tldap_debug(ld, TLDAP_DEBUG_ERROR, + "Incomplete or malformed filter\n"); + return false; + } + s++; + + if (asn1_has_error(data)) { + return false; + } + + *_s = s; + return true; +} + + +static bool tldap_push_filter_basic(struct tldap_context *ld, + struct asn1_data *data, + const char **_s) +{ + TALLOC_CTX *tmpctx = talloc_tos(); + const char *s = *_s; + const char *e; + const char *eq; + const char *val; + const char *type; + const char *dn; + const char *rule; + const char *star; + size_t type_len = 0; + char *uval; + size_t uval_len; + bool write_octect = true; + bool ret; + + eq = strchr(s, '='); + if (!eq) { + tldap_debug(ld, TLDAP_DEBUG_ERROR, + "Invalid filter, missing equal sign\n"); + return false; + } + + val = eq + 1; + e = eq - 1; + + switch (*e) { + case '<': + if (!asn1_push_tag(data, TLDAP_FILTER_LE)) return false; + break; + + case '>': + if (!asn1_push_tag(data, TLDAP_FILTER_GE)) return false; + break; + + case '~': + if (!asn1_push_tag(data, TLDAP_FILTER_APX)) return false; + break; + + case ':': + if (!asn1_push_tag(data, TLDAP_FILTER_EXT)) return false; + write_octect = false; + + type = NULL; + dn = NULL; + rule = NULL; + + if (*s == ':') { /* [:dn]:rule:= value */ + if (s == e) { + /* malformed filter */ + return false; + } + dn = s; + } else { /* type[:dn][:rule]:= value */ + type = s; + dn = strchr(s, ':'); + type_len = dn - type; + if (dn == e) { /* type:= value */ + dn = NULL; + } + } + if (dn) { + dn++; + + rule = strchr(dn, ':'); + if (rule == NULL) { + return false; + } + if ((rule == dn + 1) || rule + 1 == e) { + /* malformed filter, contains "::" */ + return false; + } + + if (strncasecmp_m(dn, "dn:", 3) != 0) { + if (rule == e) { + rule = dn; + dn = NULL; + } else { + /* malformed filter. With two + * optionals, the first must be "dn" + */ + return false; + } + } else { + if (rule == e) { + rule = NULL; + } else { + rule++; + } + } + } + + if (!type && !dn && !rule) { + /* malformed filter, there must be at least one */ + return false; + } + + /* + MatchingRuleAssertion ::= SEQUENCE { + matchingRule [1] MatchingRuleID OPTIONAL, + type [2] AttributeDescription OPTIONAL, + matchValue [3] AssertionValue, + dnAttributes [4] BOOLEAN DEFAULT FALSE + } + */ + + /* check and add rule */ + if (rule) { + ret = tldap_is_attrdesc(rule, e - rule, true); + if (!ret) { + return false; + } + if (!asn1_push_tag(data, ASN1_CONTEXT_SIMPLE(1))) return false; + if (!asn1_write(data, rule, e - rule)) return false; + if (!asn1_pop_tag(data)) return false; + } + + /* check and add type */ + if (type) { + ret = tldap_is_attrdesc(type, type_len, false); + if (!ret) { + return false; + } + if (!asn1_push_tag(data, ASN1_CONTEXT_SIMPLE(2))) return false; + if (!asn1_write(data, type, type_len)) return false; + if (!asn1_pop_tag(data)) return false; + } + + uval = tldap_get_val(tmpctx, val, _s); + if (!uval) { + return false; + } + uval_len = *_s - val; + ret = tldap_unescape_inplace(uval, &uval_len); + if (!ret) { + return false; + } + + if (!asn1_push_tag(data, ASN1_CONTEXT_SIMPLE(3))) return false; + if (!asn1_write(data, uval, uval_len)) return false; + if (!asn1_pop_tag(data)) return false; + + if (!asn1_push_tag(data, ASN1_CONTEXT_SIMPLE(4))) return false; + if (!asn1_write_uint8(data, dn?1:0)) return false; + if (!asn1_pop_tag(data)) return false; + break; + + default: + e = eq; + + ret = tldap_is_attrdesc(s, e - s, false); + if (!ret) { + return false; + } + + if (strncmp(val, "*)", 2) == 0) { + /* presence */ + if (!asn1_push_tag(data, TLDAP_FILTER_PRES)) return false; + if (!asn1_write(data, s, e - s)) return false; + *_s = val + 1; + write_octect = false; + break; + } + + ret = tldap_find_first_star(val, &star); + if (!ret) { + return false; + } + if (*star == '*') { + /* substring */ + if (!asn1_push_tag(data, TLDAP_FILTER_SUB)) return false; + if (!asn1_write_OctetString(data, s, e - s)) return false; + ret = tldap_push_filter_substring(ld, data, val, &s); + if (!ret) { + return false; + } + *_s = s; + write_octect = false; + break; + } + + /* if nothing else, then it is just equality */ + if (!asn1_push_tag(data, TLDAP_FILTER_EQ)) return false; + write_octect = true; + break; + } + + if (write_octect) { + uval = tldap_get_val(tmpctx, val, _s); + if (!uval) { + return false; + } + uval_len = *_s - val; + ret = tldap_unescape_inplace(uval, &uval_len); + if (!ret) { + return false; + } + + if (!asn1_write_OctetString(data, s, e - s)) return false; + if (!asn1_write_OctetString(data, uval, uval_len)) return false; + } + + if (asn1_has_error(data)) { + return false; + } + return asn1_pop_tag(data); +} + +static bool tldap_push_filter_substring(struct tldap_context *ld, + struct asn1_data *data, + const char *val, + const char **_s) +{ + TALLOC_CTX *tmpctx = talloc_tos(); + bool initial = true; + const char *star; + char *chunk; + size_t chunk_len; + bool ret; + + /* + SubstringFilter ::= SEQUENCE { + type AttributeDescription, + -- at least one must be present + substrings SEQUENCE OF CHOICE { + initial [0] LDAPString, + any [1] LDAPString, + final [2] LDAPString } } + */ + if (!asn1_push_tag(data, ASN1_SEQUENCE(0))) return false; + + do { + ret = tldap_find_first_star(val, &star); + if (!ret) { + return false; + } + chunk_len = star - val; + + switch (*star) { + case '*': + if (!initial && chunk_len == 0) { + /* found '**', which is illegal */ + return false; + } + break; + case ')': + if (initial) { + /* no stars ?? */ + return false; + } + /* we are done */ + break; + default: + /* ?? */ + return false; + } + + if (initial && chunk_len == 0) { + val = star + 1; + initial = false; + continue; + } + + chunk = talloc_strndup(tmpctx, val, chunk_len); + if (!chunk) { + return false; + } + ret = tldap_unescape_inplace(chunk, &chunk_len); + if (!ret) { + return false; + } + switch (*star) { + case '*': + if (initial) { + if (!asn1_push_tag(data, TLDAP_SUB_INI)) return false; + initial = false; + } else { + if (!asn1_push_tag(data, TLDAP_SUB_ANY)) return false; + } + break; + case ')': + if (!asn1_push_tag(data, TLDAP_SUB_FIN)) return false; + break; + default: + /* ?? */ + return false; + } + if (!asn1_write(data, chunk, chunk_len)) return false; + if (!asn1_pop_tag(data)) return false; + + val = star + 1; + + } while (*star == '*'); + + *_s = star; + + /* end of sequence */ + return asn1_pop_tag(data); +} + +/* NOTE: although openldap libraries allow for spaces in some places, mostly + * around parentheses, we do not allow any spaces (except in values of + * course) as I couldn't find any place in RFC 4512 or RFC 4515 where + * leading or trailing spaces were allowed. + */ +static bool tldap_push_filter(struct tldap_context *ld, + struct asn1_data *data, + const char *filter) +{ + const char *s = filter; + bool ret; + + ret = tldap_push_filter_int(ld, data, &s); + if (ret && *s) { + tldap_debug(ld, TLDAP_DEBUG_ERROR, + "Incomplete or malformed filter\n"); + return false; + } + return ret; +} + +/*****************************************************************************/ + +static void tldap_search_done(struct tevent_req *subreq); + +struct tevent_req *tldap_search_send(TALLOC_CTX *mem_ctx, + struct tevent_context *ev, + struct tldap_context *ld, + const char *base, int scope, + const char *filter, + const char **attrs, + int num_attrs, + int attrsonly, + struct tldap_control *sctrls, + int num_sctrls, + struct tldap_control *cctrls, + int num_cctrls, + int timelimit, + int sizelimit, + int deref) +{ + struct tevent_req *req, *subreq; + struct tldap_req_state *state; + int i; + + req = tldap_req_create(mem_ctx, ld, &state); + if (req == NULL) { + return NULL; + } + + if (!asn1_push_tag(state->out, TLDAP_REQ_SEARCH)) goto encoding_error; + if (!asn1_write_OctetString(state->out, base, strlen(base))) goto encoding_error; + if (!asn1_write_enumerated(state->out, scope)) goto encoding_error; + if (!asn1_write_enumerated(state->out, deref)) goto encoding_error; + if (!asn1_write_Integer(state->out, sizelimit)) goto encoding_error; + if (!asn1_write_Integer(state->out, timelimit)) goto encoding_error; + if (!asn1_write_BOOLEAN(state->out, attrsonly)) goto encoding_error; + + if (!tldap_push_filter(ld, state->out, filter)) { + goto encoding_error; + } + + if (!asn1_push_tag(state->out, ASN1_SEQUENCE(0))) goto encoding_error; + for (i=0; i<num_attrs; i++) { + if (!asn1_write_OctetString(state->out, attrs[i], strlen(attrs[i]))) goto encoding_error; + } + if (!asn1_pop_tag(state->out)) goto encoding_error; + if (!asn1_pop_tag(state->out)) goto encoding_error; + + subreq = tldap_msg_send(state, ev, ld, state->id, state->out, + sctrls, num_sctrls); + if (tevent_req_nomem(subreq, req)) { + return tevent_req_post(req, ev); + } + tevent_req_set_callback(subreq, tldap_search_done, req); + return req; + + encoding_error: + tevent_req_ldap_error(req, TLDAP_ENCODING_ERROR); + return tevent_req_post(req, ev); +} + +static void tldap_search_done(struct tevent_req *subreq) +{ + struct tevent_req *req = tevent_req_callback_data( + subreq, struct tevent_req); + struct tldap_req_state *state = tevent_req_data( + req, struct tldap_req_state); + TLDAPRC rc; + + rc = tldap_msg_recv(subreq, state, &state->result); + if (tevent_req_ldap_error(req, rc)) { + return; + } + switch (state->result->type) { + case TLDAP_RES_SEARCH_ENTRY: + case TLDAP_RES_SEARCH_REFERENCE: + if (!tldap_msg_set_pending(subreq)) { + tevent_req_oom(req); + return; + } + tevent_req_notify_callback(req); + break; + case TLDAP_RES_SEARCH_RESULT: + TALLOC_FREE(subreq); + if (!asn1_start_tag(state->result->data, + state->result->type) || + !tldap_decode_response(state) || + !asn1_end_tag(state->result->data) || + !tldap_decode_controls(state)) { + tevent_req_ldap_error(req, TLDAP_DECODING_ERROR); + return; + } + tevent_req_done(req); + break; + default: + tevent_req_ldap_error(req, TLDAP_PROTOCOL_ERROR); + return; + } +} + +TLDAPRC tldap_search_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx, + struct tldap_message **pmsg) +{ + struct tldap_req_state *state = tevent_req_data( + req, struct tldap_req_state); + TLDAPRC rc; + + if (!tevent_req_is_in_progress(req) + && tevent_req_is_ldap_error(req, &rc)) { + return rc; + } + + if (tevent_req_is_in_progress(req)) { + switch (state->result->type) { + case TLDAP_RES_SEARCH_ENTRY: + case TLDAP_RES_SEARCH_REFERENCE: + break; + default: + return TLDAP_OPERATIONS_ERROR; + } + } + + *pmsg = talloc_move(mem_ctx, &state->result); + return TLDAP_SUCCESS; +} + +struct tldap_search_all_state { + struct tldap_message **msgs; + struct tldap_message *result; +}; + +static void tldap_search_all_done(struct tevent_req *subreq); + +struct tevent_req *tldap_search_all_send( + TALLOC_CTX *mem_ctx, struct tevent_context *ev, + struct tldap_context *ld, const char *base, int scope, + const char *filter, const char **attrs, int num_attrs, int attrsonly, + struct tldap_control *sctrls, int num_sctrls, + struct tldap_control *cctrls, int num_cctrls, + int timelimit, int sizelimit, int deref) +{ + struct tevent_req *req, *subreq; + struct tldap_search_all_state *state; + + req = tevent_req_create(mem_ctx, &state, + struct tldap_search_all_state); + if (req == NULL) { + return NULL; + } + + subreq = tldap_search_send(state, ev, ld, base, scope, filter, + attrs, num_attrs, attrsonly, + sctrls, num_sctrls, cctrls, num_cctrls, + timelimit, sizelimit, deref); + if (tevent_req_nomem(subreq, req)) { + return tevent_req_post(req, ev); + } + tevent_req_set_callback(subreq, tldap_search_all_done, req); + return req; +} + +static void tldap_search_all_done(struct tevent_req *subreq) +{ + struct tevent_req *req = tevent_req_callback_data( + subreq, struct tevent_req); + struct tldap_search_all_state *state = tevent_req_data( + req, struct tldap_search_all_state); + struct tldap_message *msg, **tmp; + size_t num_msgs; + TLDAPRC rc; + int msgtype; + + rc = tldap_search_recv(subreq, state, &msg); + /* No TALLOC_FREE(subreq), this is multi-step */ + if (tevent_req_ldap_error(req, rc)) { + return; + } + + msgtype = tldap_msg_type(msg); + if (msgtype == TLDAP_RES_SEARCH_RESULT) { + state->result = msg; + tevent_req_done(req); + return; + } + + num_msgs = talloc_array_length(state->msgs); + + tmp = talloc_realloc(state, state->msgs, struct tldap_message *, + num_msgs + 1); + if (tevent_req_nomem(tmp, req)) { + return; + } + state->msgs = tmp; + state->msgs[num_msgs] = talloc_move(state->msgs, &msg); +} + +TLDAPRC tldap_search_all_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx, + struct tldap_message ***msgs, + struct tldap_message **result) +{ + struct tldap_search_all_state *state = tevent_req_data( + req, struct tldap_search_all_state); + TLDAPRC rc; + + if (tevent_req_is_ldap_error(req, &rc)) { + return rc; + } + + if (msgs != NULL) { + *msgs = talloc_move(mem_ctx, &state->msgs); + } + if (result != NULL) { + *result = talloc_move(mem_ctx, &state->result); + } + + return TLDAP_SUCCESS; +} + +TLDAPRC tldap_search(struct tldap_context *ld, + const char *base, int scope, const char *filter, + const char **attrs, int num_attrs, int attrsonly, + struct tldap_control *sctrls, int num_sctrls, + struct tldap_control *cctrls, int num_cctrls, + int timelimit, int sizelimit, int deref, + TALLOC_CTX *mem_ctx, struct tldap_message ***pmsgs) +{ + TALLOC_CTX *frame; + struct tevent_context *ev; + struct tevent_req *req; + TLDAPRC rc = TLDAP_NO_MEMORY; + struct tldap_message **msgs; + struct tldap_message *result; + + if (tldap_pending_reqs(ld)) { + return TLDAP_BUSY; + } + + frame = talloc_stackframe(); + + ev = samba_tevent_context_init(frame); + if (ev == NULL) { + goto fail; + } + req = tldap_search_all_send(frame, ev, ld, base, scope, filter, + attrs, num_attrs, attrsonly, + sctrls, num_sctrls, cctrls, num_cctrls, + timelimit, sizelimit, deref); + if (req == NULL) { + goto fail; + } + if (!tevent_req_poll(req, ev)) { + rc = TLDAP_OPERATIONS_ERROR; + goto fail; + } + rc = tldap_search_all_recv(req, frame, &msgs, &result); + TALLOC_FREE(req); + if (!TLDAP_RC_IS_SUCCESS(rc)) { + goto fail; + } + + TALLOC_FREE(ld->last_msg); + ld->last_msg = talloc_move(ld, &result); + + if (pmsgs != NULL) { + *pmsgs = talloc_move(mem_ctx, &msgs); + } +fail: + TALLOC_FREE(frame); + return rc; +} + +static bool tldap_parse_search_entry(struct tldap_message *msg) +{ + int num_attribs = 0; + + if (msg->type != TLDAP_RES_SEARCH_ENTRY) { + return false; + } + if (!asn1_start_tag(msg->data, TLDAP_RES_SEARCH_ENTRY)) { + return false; + } + + /* dn */ + + if (!asn1_read_OctetString_talloc(msg, msg->data, &msg->dn)) return false; + + if (msg->dn == NULL) { + return false; + } + + /* + * Attributes: We overallocate msg->attribs by one, so that while + * looping over the attributes we can directly parse into the last + * array element. Same for the values in the inner loop. + */ + + msg->attribs = talloc_array(msg, struct tldap_attribute, 1); + if (msg->attribs == NULL) { + return false; + } + + if (!asn1_start_tag(msg->data, ASN1_SEQUENCE(0))) return false; + while (asn1_peek_tag(msg->data, ASN1_SEQUENCE(0))) { + struct tldap_attribute *attrib; + int num_values = 0; + + attrib = &msg->attribs[num_attribs]; + attrib->values = talloc_array(msg->attribs, DATA_BLOB, 1); + if (attrib->values == NULL) { + return false; + } + if (!asn1_start_tag(msg->data, ASN1_SEQUENCE(0))) return false; + if (!asn1_read_OctetString_talloc(msg->attribs, msg->data, + &attrib->name)) return false; + if (!asn1_start_tag(msg->data, ASN1_SET)) return false; + + while (asn1_peek_tag(msg->data, ASN1_OCTET_STRING)) { + if (!asn1_read_OctetString(msg->data, msg, + &attrib->values[num_values])) return false; + + attrib->values = talloc_realloc( + msg->attribs, attrib->values, DATA_BLOB, + num_values + 2); + if (attrib->values == NULL) { + return false; + } + num_values += 1; + } + attrib->values = talloc_realloc(msg->attribs, attrib->values, + DATA_BLOB, num_values); + attrib->num_values = num_values; + + if (!asn1_end_tag(msg->data)) return false; /* ASN1_SET */ + if (!asn1_end_tag(msg->data)) return false; /* ASN1_SEQUENCE(0) */ + msg->attribs = talloc_realloc( + msg, msg->attribs, struct tldap_attribute, + num_attribs + 2); + if (msg->attribs == NULL) { + return false; + } + num_attribs += 1; + } + msg->attribs = talloc_realloc( + msg, msg->attribs, struct tldap_attribute, num_attribs); + return asn1_end_tag(msg->data); +} + +bool tldap_entry_dn(struct tldap_message *msg, char **dn) +{ + if ((msg->dn == NULL) && (!tldap_parse_search_entry(msg))) { + return false; + } + *dn = msg->dn; + return true; +} + +bool tldap_entry_attributes(struct tldap_message *msg, + struct tldap_attribute **attributes, + int *num_attributes) +{ + if ((msg->dn == NULL) && (!tldap_parse_search_entry(msg))) { + return false; + } + *attributes = msg->attribs; + *num_attributes = talloc_array_length(msg->attribs); + return true; +} + +static bool tldap_decode_controls(struct tldap_req_state *state) +{ + struct tldap_message *msg = state->result; + struct asn1_data *data = msg->data; + struct tldap_control *sctrls = NULL; + int num_controls = 0; + bool ret = false; + + msg->res_sctrls = NULL; + + if (!asn1_peek_tag(data, ASN1_CONTEXT(0))) { + return true; + } + + if (!asn1_start_tag(data, ASN1_CONTEXT(0))) goto out; + + while (asn1_peek_tag(data, ASN1_SEQUENCE(0))) { + struct tldap_control *c; + char *oid = NULL; + + sctrls = talloc_realloc(msg, sctrls, struct tldap_control, + num_controls + 1); + if (sctrls == NULL) { + goto out; + } + c = &sctrls[num_controls]; + + if (!asn1_start_tag(data, ASN1_SEQUENCE(0))) goto out; + if (!asn1_read_OctetString_talloc(msg, data, &oid)) goto out; + if (asn1_has_error(data) || (oid == NULL)) { + goto out; + } + c->oid = oid; + if (asn1_peek_tag(data, ASN1_BOOLEAN)) { + if (!asn1_read_BOOLEAN(data, &c->critical)) goto out; + } else { + c->critical = false; + } + c->value = data_blob_null; + if (asn1_peek_tag(data, ASN1_OCTET_STRING) && + !asn1_read_OctetString(data, msg, &c->value)) { + goto out; + } + if (!asn1_end_tag(data)) goto out; /* ASN1_SEQUENCE(0) */ + + num_controls += 1; + } + + if (!asn1_end_tag(data)) goto out; /* ASN1_CONTEXT(0) */ + + ret = true; + + out: + + if (ret) { + msg->res_sctrls = sctrls; + } else { + TALLOC_FREE(sctrls); + } + return ret; +} + +static void tldap_simple_done(struct tevent_req *subreq, int type) +{ + struct tevent_req *req = tevent_req_callback_data( + subreq, struct tevent_req); + struct tldap_req_state *state = tevent_req_data( + req, struct tldap_req_state); + TLDAPRC rc; + + rc = tldap_msg_recv(subreq, state, &state->result); + TALLOC_FREE(subreq); + if (tevent_req_ldap_error(req, rc)) { + return; + } + if (state->result->type != type) { + tevent_req_ldap_error(req, TLDAP_PROTOCOL_ERROR); + return; + } + if (!asn1_start_tag(state->result->data, state->result->type) || + !tldap_decode_response(state) || + !asn1_end_tag(state->result->data) || + !tldap_decode_controls(state)) { + tevent_req_ldap_error(req, TLDAP_DECODING_ERROR); + return; + } + if (!TLDAP_RC_IS_SUCCESS(state->result->lderr)) { + tevent_req_ldap_error(req, state->result->lderr); + return; + } + tevent_req_done(req); +} + +static TLDAPRC tldap_simple_recv(struct tevent_req *req) +{ + TLDAPRC rc; + if (tevent_req_is_ldap_error(req, &rc)) { + return rc; + } + return TLDAP_SUCCESS; +} + +static void tldap_add_done(struct tevent_req *subreq); + +struct tevent_req *tldap_add_send(TALLOC_CTX *mem_ctx, + struct tevent_context *ev, + struct tldap_context *ld, + const char *dn, + struct tldap_mod *attributes, + int num_attributes, + struct tldap_control *sctrls, + int num_sctrls, + struct tldap_control *cctrls, + int num_cctrls) +{ + struct tevent_req *req, *subreq; + struct tldap_req_state *state; + int i, j; + + req = tldap_req_create(mem_ctx, ld, &state); + if (req == NULL) { + return NULL; + } + + if (!asn1_push_tag(state->out, TLDAP_REQ_ADD)) goto err; + if (!asn1_write_OctetString(state->out, dn, strlen(dn))) goto err; + if (!asn1_push_tag(state->out, ASN1_SEQUENCE(0))) goto err; + + for (i=0; i<num_attributes; i++) { + struct tldap_mod *attrib = &attributes[i]; + if (!asn1_push_tag(state->out, ASN1_SEQUENCE(0))) goto err; + if (!asn1_write_OctetString(state->out, attrib->attribute, + strlen(attrib->attribute))) goto err; + if (!asn1_push_tag(state->out, ASN1_SET)) goto err; + for (j=0; j<attrib->num_values; j++) { + if (!asn1_write_OctetString(state->out, + attrib->values[j].data, + attrib->values[j].length)) goto err; + } + if (!asn1_pop_tag(state->out)) goto err; + if (!asn1_pop_tag(state->out)) goto err; + } + + if (!asn1_pop_tag(state->out)) goto err; + if (!asn1_pop_tag(state->out)) goto err; + + subreq = tldap_msg_send(state, ev, ld, state->id, state->out, + sctrls, num_sctrls); + if (tevent_req_nomem(subreq, req)) { + return tevent_req_post(req, ev); + } + tevent_req_set_callback(subreq, tldap_add_done, req); + return req; + + err: + + tevent_req_ldap_error(req, TLDAP_ENCODING_ERROR); + return tevent_req_post(req, ev); +} + +static void tldap_add_done(struct tevent_req *subreq) +{ + tldap_simple_done(subreq, TLDAP_RES_ADD); +} + +TLDAPRC tldap_add_recv(struct tevent_req *req) +{ + return tldap_simple_recv(req); +} + +TLDAPRC tldap_add(struct tldap_context *ld, const char *dn, + struct tldap_mod *attributes, int num_attributes, + struct tldap_control *sctrls, int num_sctrls, + struct tldap_control *cctrls, int num_cctrls) +{ + TALLOC_CTX *frame = talloc_stackframe(); + struct tevent_context *ev; + struct tevent_req *req; + TLDAPRC rc = TLDAP_NO_MEMORY; + + ev = samba_tevent_context_init(frame); + if (ev == NULL) { + goto fail; + } + req = tldap_add_send(frame, ev, ld, dn, attributes, num_attributes, + sctrls, num_sctrls, cctrls, num_cctrls); + if (req == NULL) { + goto fail; + } + if (!tevent_req_poll(req, ev)) { + rc = TLDAP_OPERATIONS_ERROR; + goto fail; + } + rc = tldap_add_recv(req); + tldap_save_msg(ld, req); + fail: + TALLOC_FREE(frame); + return rc; +} + +static void tldap_modify_done(struct tevent_req *subreq); + +struct tevent_req *tldap_modify_send(TALLOC_CTX *mem_ctx, + struct tevent_context *ev, + struct tldap_context *ld, + const char *dn, + struct tldap_mod *mods, int num_mods, + struct tldap_control *sctrls, + int num_sctrls, + struct tldap_control *cctrls, + int num_cctrls) +{ + struct tevent_req *req, *subreq; + struct tldap_req_state *state; + int i, j; + + req = tldap_req_create(mem_ctx, ld, &state); + if (req == NULL) { + return NULL; + } + + if (!asn1_push_tag(state->out, TLDAP_REQ_MODIFY)) goto err; + if (!asn1_write_OctetString(state->out, dn, strlen(dn))) goto err; + if (!asn1_push_tag(state->out, ASN1_SEQUENCE(0))) goto err; + + for (i=0; i<num_mods; i++) { + struct tldap_mod *mod = &mods[i]; + if (!asn1_push_tag(state->out, ASN1_SEQUENCE(0))) goto err; + if (!asn1_write_enumerated(state->out, mod->mod_op)) goto err; + if (!asn1_push_tag(state->out, ASN1_SEQUENCE(0))) goto err; + if (!asn1_write_OctetString(state->out, mod->attribute, + strlen(mod->attribute))) goto err; + if (!asn1_push_tag(state->out, ASN1_SET)) goto err; + for (j=0; j<mod->num_values; j++) { + if (!asn1_write_OctetString(state->out, + mod->values[j].data, + mod->values[j].length)) goto err; + } + if (!asn1_pop_tag(state->out)) goto err; + if (!asn1_pop_tag(state->out)) goto err; + if (!asn1_pop_tag(state->out)) goto err; + } + + if (!asn1_pop_tag(state->out)) goto err; + if (!asn1_pop_tag(state->out)) goto err; + + subreq = tldap_msg_send(state, ev, ld, state->id, state->out, + sctrls, num_sctrls); + if (tevent_req_nomem(subreq, req)) { + return tevent_req_post(req, ev); + } + tevent_req_set_callback(subreq, tldap_modify_done, req); + return req; + + err: + + tevent_req_ldap_error(req, TLDAP_ENCODING_ERROR); + return tevent_req_post(req, ev); +} + +static void tldap_modify_done(struct tevent_req *subreq) +{ + tldap_simple_done(subreq, TLDAP_RES_MODIFY); +} + +TLDAPRC tldap_modify_recv(struct tevent_req *req) +{ + return tldap_simple_recv(req); +} + +TLDAPRC tldap_modify(struct tldap_context *ld, const char *dn, + struct tldap_mod *mods, int num_mods, + struct tldap_control *sctrls, int num_sctrls, + struct tldap_control *cctrls, int num_cctrls) + { + TALLOC_CTX *frame = talloc_stackframe(); + struct tevent_context *ev; + struct tevent_req *req; + TLDAPRC rc = TLDAP_NO_MEMORY; + + ev = samba_tevent_context_init(frame); + if (ev == NULL) { + goto fail; + } + req = tldap_modify_send(frame, ev, ld, dn, mods, num_mods, + sctrls, num_sctrls, cctrls, num_cctrls); + if (req == NULL) { + goto fail; + } + if (!tevent_req_poll(req, ev)) { + rc = TLDAP_OPERATIONS_ERROR; + goto fail; + } + rc = tldap_modify_recv(req); + tldap_save_msg(ld, req); + fail: + TALLOC_FREE(frame); + return rc; +} + +static void tldap_delete_done(struct tevent_req *subreq); + +struct tevent_req *tldap_delete_send(TALLOC_CTX *mem_ctx, + struct tevent_context *ev, + struct tldap_context *ld, + const char *dn, + struct tldap_control *sctrls, + int num_sctrls, + struct tldap_control *cctrls, + int num_cctrls) +{ + struct tevent_req *req, *subreq; + struct tldap_req_state *state; + + req = tldap_req_create(mem_ctx, ld, &state); + if (req == NULL) { + return NULL; + } + + if (!asn1_push_tag(state->out, TLDAP_REQ_DELETE)) goto err; + if (!asn1_write(state->out, dn, strlen(dn))) goto err; + if (!asn1_pop_tag(state->out)) goto err; + + subreq = tldap_msg_send(state, ev, ld, state->id, state->out, + sctrls, num_sctrls); + if (tevent_req_nomem(subreq, req)) { + return tevent_req_post(req, ev); + } + tevent_req_set_callback(subreq, tldap_delete_done, req); + return req; + + err: + + tevent_req_ldap_error(req, TLDAP_ENCODING_ERROR); + return tevent_req_post(req, ev); +} + +static void tldap_delete_done(struct tevent_req *subreq) +{ + tldap_simple_done(subreq, TLDAP_RES_DELETE); +} + +TLDAPRC tldap_delete_recv(struct tevent_req *req) +{ + return tldap_simple_recv(req); +} + +TLDAPRC tldap_delete(struct tldap_context *ld, const char *dn, + struct tldap_control *sctrls, int num_sctrls, + struct tldap_control *cctrls, int num_cctrls) +{ + TALLOC_CTX *frame = talloc_stackframe(); + struct tevent_context *ev; + struct tevent_req *req; + TLDAPRC rc = TLDAP_NO_MEMORY; + + ev = samba_tevent_context_init(frame); + if (ev == NULL) { + goto fail; + } + req = tldap_delete_send(frame, ev, ld, dn, sctrls, num_sctrls, + cctrls, num_cctrls); + if (req == NULL) { + goto fail; + } + if (!tevent_req_poll(req, ev)) { + rc = TLDAP_OPERATIONS_ERROR; + goto fail; + } + rc = tldap_delete_recv(req); + tldap_save_msg(ld, req); + fail: + TALLOC_FREE(frame); + return rc; +} + +int tldap_msg_id(const struct tldap_message *msg) +{ + return msg->id; +} + +int tldap_msg_type(const struct tldap_message *msg) +{ + return msg->type; +} + +const char *tldap_msg_matcheddn(struct tldap_message *msg) +{ + if (msg == NULL) { + return NULL; + } + return msg->res_matcheddn; +} + +const char *tldap_msg_diagnosticmessage(struct tldap_message *msg) +{ + if (msg == NULL) { + return NULL; + } + return msg->res_diagnosticmessage; +} + +const char *tldap_msg_referral(struct tldap_message *msg) +{ + if (msg == NULL) { + return NULL; + } + return msg->res_referral; +} + +void tldap_msg_sctrls(struct tldap_message *msg, int *num_sctrls, + struct tldap_control **sctrls) +{ + if (msg == NULL) { + *sctrls = NULL; + *num_sctrls = 0; + return; + } + *sctrls = msg->res_sctrls; + *num_sctrls = talloc_array_length(msg->res_sctrls); +} + +struct tldap_message *tldap_ctx_lastmsg(struct tldap_context *ld) +{ + return ld->last_msg; +} + +static const struct { TLDAPRC rc; const char *string; } tldaprc_errmap[] = +{ + { TLDAP_SUCCESS, + "TLDAP_SUCCESS" }, + { TLDAP_OPERATIONS_ERROR, + "TLDAP_OPERATIONS_ERROR" }, + { TLDAP_PROTOCOL_ERROR, + "TLDAP_PROTOCOL_ERROR" }, + { TLDAP_TIMELIMIT_EXCEEDED, + "TLDAP_TIMELIMIT_EXCEEDED" }, + { TLDAP_SIZELIMIT_EXCEEDED, + "TLDAP_SIZELIMIT_EXCEEDED" }, + { TLDAP_COMPARE_FALSE, + "TLDAP_COMPARE_FALSE" }, + { TLDAP_COMPARE_TRUE, + "TLDAP_COMPARE_TRUE" }, + { TLDAP_STRONG_AUTH_NOT_SUPPORTED, + "TLDAP_STRONG_AUTH_NOT_SUPPORTED" }, + { TLDAP_STRONG_AUTH_REQUIRED, + "TLDAP_STRONG_AUTH_REQUIRED" }, + { TLDAP_REFERRAL, + "TLDAP_REFERRAL" }, + { TLDAP_ADMINLIMIT_EXCEEDED, + "TLDAP_ADMINLIMIT_EXCEEDED" }, + { TLDAP_UNAVAILABLE_CRITICAL_EXTENSION, + "TLDAP_UNAVAILABLE_CRITICAL_EXTENSION" }, + { TLDAP_CONFIDENTIALITY_REQUIRED, + "TLDAP_CONFIDENTIALITY_REQUIRED" }, + { TLDAP_SASL_BIND_IN_PROGRESS, + "TLDAP_SASL_BIND_IN_PROGRESS" }, + { TLDAP_NO_SUCH_ATTRIBUTE, + "TLDAP_NO_SUCH_ATTRIBUTE" }, + { TLDAP_UNDEFINED_TYPE, + "TLDAP_UNDEFINED_TYPE" }, + { TLDAP_INAPPROPRIATE_MATCHING, + "TLDAP_INAPPROPRIATE_MATCHING" }, + { TLDAP_CONSTRAINT_VIOLATION, + "TLDAP_CONSTRAINT_VIOLATION" }, + { TLDAP_TYPE_OR_VALUE_EXISTS, + "TLDAP_TYPE_OR_VALUE_EXISTS" }, + { TLDAP_INVALID_SYNTAX, + "TLDAP_INVALID_SYNTAX" }, + { TLDAP_NO_SUCH_OBJECT, + "TLDAP_NO_SUCH_OBJECT" }, + { TLDAP_ALIAS_PROBLEM, + "TLDAP_ALIAS_PROBLEM" }, + { TLDAP_INVALID_DN_SYNTAX, + "TLDAP_INVALID_DN_SYNTAX" }, + { TLDAP_IS_LEAF, + "TLDAP_IS_LEAF" }, + { TLDAP_ALIAS_DEREF_PROBLEM, + "TLDAP_ALIAS_DEREF_PROBLEM" }, + { TLDAP_INAPPROPRIATE_AUTH, + "TLDAP_INAPPROPRIATE_AUTH" }, + { TLDAP_INVALID_CREDENTIALS, + "TLDAP_INVALID_CREDENTIALS" }, + { TLDAP_INSUFFICIENT_ACCESS, + "TLDAP_INSUFFICIENT_ACCESS" }, + { TLDAP_BUSY, + "TLDAP_BUSY" }, + { TLDAP_UNAVAILABLE, + "TLDAP_UNAVAILABLE" }, + { TLDAP_UNWILLING_TO_PERFORM, + "TLDAP_UNWILLING_TO_PERFORM" }, + { TLDAP_LOOP_DETECT, + "TLDAP_LOOP_DETECT" }, + { TLDAP_NAMING_VIOLATION, + "TLDAP_NAMING_VIOLATION" }, + { TLDAP_OBJECT_CLASS_VIOLATION, + "TLDAP_OBJECT_CLASS_VIOLATION" }, + { TLDAP_NOT_ALLOWED_ON_NONLEAF, + "TLDAP_NOT_ALLOWED_ON_NONLEAF" }, + { TLDAP_NOT_ALLOWED_ON_RDN, + "TLDAP_NOT_ALLOWED_ON_RDN" }, + { TLDAP_ALREADY_EXISTS, + "TLDAP_ALREADY_EXISTS" }, + { TLDAP_NO_OBJECT_CLASS_MODS, + "TLDAP_NO_OBJECT_CLASS_MODS" }, + { TLDAP_RESULTS_TOO_LARGE, + "TLDAP_RESULTS_TOO_LARGE" }, + { TLDAP_AFFECTS_MULTIPLE_DSAS, + "TLDAP_AFFECTS_MULTIPLE_DSAS" }, + { TLDAP_OTHER, + "TLDAP_OTHER" }, + { TLDAP_SERVER_DOWN, + "TLDAP_SERVER_DOWN" }, + { TLDAP_LOCAL_ERROR, + "TLDAP_LOCAL_ERROR" }, + { TLDAP_ENCODING_ERROR, + "TLDAP_ENCODING_ERROR" }, + { TLDAP_DECODING_ERROR, + "TLDAP_DECODING_ERROR" }, + { TLDAP_TIMEOUT, + "TLDAP_TIMEOUT" }, + { TLDAP_AUTH_UNKNOWN, + "TLDAP_AUTH_UNKNOWN" }, + { TLDAP_FILTER_ERROR, + "TLDAP_FILTER_ERROR" }, + { TLDAP_USER_CANCELLED, + "TLDAP_USER_CANCELLED" }, + { TLDAP_PARAM_ERROR, + "TLDAP_PARAM_ERROR" }, + { TLDAP_NO_MEMORY, + "TLDAP_NO_MEMORY" }, + { TLDAP_CONNECT_ERROR, + "TLDAP_CONNECT_ERROR" }, + { TLDAP_NOT_SUPPORTED, + "TLDAP_NOT_SUPPORTED" }, + { TLDAP_CONTROL_NOT_FOUND, + "TLDAP_CONTROL_NOT_FOUND" }, + { TLDAP_NO_RESULTS_RETURNED, + "TLDAP_NO_RESULTS_RETURNED" }, + { TLDAP_MORE_RESULTS_TO_RETURN, + "TLDAP_MORE_RESULTS_TO_RETURN" }, + { TLDAP_CLIENT_LOOP, + "TLDAP_CLIENT_LOOP" }, + { TLDAP_REFERRAL_LIMIT_EXCEEDED, + "TLDAP_REFERRAL_LIMIT_EXCEEDED" }, +}; + +const char *tldap_rc2string(TLDAPRC rc) +{ + size_t i; + + for (i=0; i<ARRAY_SIZE(tldaprc_errmap); i++) { + if (TLDAP_RC_EQUAL(rc, tldaprc_errmap[i].rc)) { + return tldaprc_errmap[i].string; + } + } + + return "Unknown LDAP Error"; +} |