2 Unix SMB/CIFS implementation.
3 Infrastructure for async SMB client requests
4 Copyright (C) Volker Lendecke 2008
5 Copyright (C) Stefan Metzmacher 2011
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>.
22 #include "system/network.h"
23 #include "../lib/async_req/async_sock.h"
24 #include "../lib/util/tevent_ntstatus.h"
25 #include "../lib/util/tevent_unix.h"
26 #include "lib/util/util_net.h"
27 #include "lib/util/dlinklist.h"
28 #include "../libcli/smb/smb_common.h"
29 #include "../libcli/smb/smb_seal.h"
30 #include "../libcli/smb/smb_signing.h"
31 #include "../libcli/smb/read_smb.h"
32 #include "smbXcli_base.h"
33 #include "librpc/ndr/libndr.h"
37 struct smbXcli_session;
43 struct sockaddr_storage local_ss;
44 struct sockaddr_storage remote_ss;
45 const char *remote_name;
47 struct tevent_queue *outgoing;
48 struct tevent_req **pending;
49 struct tevent_req *read_smb_req;
51 enum protocol_types protocol;
54 bool mandatory_signing;
57 * The incoming dispatch function should return:
58 * - NT_STATUS_RETRY, if more incoming PDUs are expected.
59 * - NT_STATUS_OK, if no more processing is desired, e.g.
60 * the dispatch function called
62 * - All other return values disconnect the connection.
64 NTSTATUS (*dispatch_incoming)(struct smbXcli_conn *conn,
70 uint32_t capabilities;
75 uint32_t capabilities;
78 uint16_t security_mode;
87 const char *workgroup;
93 uint32_t capabilities;
98 struct smb_signing_state *signing;
99 struct smb_trans_enc_state *trans_enc;
101 struct tevent_req *read_braw_req;
106 uint32_t capabilities;
107 uint16_t security_mode;
112 uint32_t capabilities;
113 uint16_t security_mode;
115 uint32_t max_trans_size;
116 uint32_t max_read_size;
117 uint32_t max_write_size;
124 uint16_t cur_credits;
125 uint16_t max_credits;
128 struct smbXcli_session *sessions;
131 struct smbXcli_session {
132 struct smbXcli_session *prev, *next;
133 struct smbXcli_conn *conn;
141 uint16_t session_flags;
142 DATA_BLOB application_key;
143 DATA_BLOB signing_key;
146 DATA_BLOB encryption_key;
147 DATA_BLOB decryption_key;
148 uint64_t channel_nonce;
149 uint64_t channel_next;
150 DATA_BLOB channel_signing_key;
154 struct smbXcli_tcon {
157 uint16_t optional_support;
158 uint32_t maximal_access;
159 uint32_t guest_maximal_access;
168 uint32_t capabilities;
169 uint32_t maximal_access;
173 struct smbXcli_req_state {
174 struct tevent_context *ev;
175 struct smbXcli_conn *conn;
176 struct smbXcli_session *session; /* maybe NULL */
177 struct smbXcli_tcon *tcon; /* maybe NULL */
179 uint8_t length_hdr[4];
186 /* Space for the header including the wct */
187 uint8_t hdr[HDR_VWV];
190 * For normal requests, smb1cli_req_send chooses a mid.
191 * SecondaryV trans requests need to use the mid of the primary
192 * request, so we need a place to store it.
193 * Assume it is set if != 0.
198 uint8_t bytecount_buf[2];
200 #define MAX_SMB_IOV 10
201 /* length_hdr, hdr, words, byte_count, buffers */
202 struct iovec iov[1 + 3 + MAX_SMB_IOV];
207 struct tevent_req **chained_requests;
210 NTSTATUS recv_status;
211 /* always an array of 3 talloc elements */
212 struct iovec *recv_iov;
216 const uint8_t *fixed;
221 uint8_t transform[SMB2_TF_HDR_SIZE];
222 uint8_t hdr[SMB2_HDR_BODY];
223 uint8_t pad[7]; /* padding space for compounding */
226 * always an array of 3 talloc elements
227 * (without a SMB2_TRANSFORM header!)
231 struct iovec *recv_iov;
233 uint16_t credit_charge;
238 bool signing_skipped;
244 static int smbXcli_conn_destructor(struct smbXcli_conn *conn)
247 * NT_STATUS_OK, means we do not notify the callers
249 smbXcli_conn_disconnect(conn, NT_STATUS_OK);
251 while (conn->sessions) {
252 conn->sessions->conn = NULL;
253 DLIST_REMOVE(conn->sessions, conn->sessions);
256 if (conn->smb1.trans_enc) {
257 TALLOC_FREE(conn->smb1.trans_enc);
263 struct smbXcli_conn *smbXcli_conn_create(TALLOC_CTX *mem_ctx,
265 const char *remote_name,
266 enum smb_signing_setting signing_state,
267 uint32_t smb1_capabilities,
268 struct GUID *client_guid,
269 uint32_t smb2_capabilities)
271 struct smbXcli_conn *conn = NULL;
273 struct sockaddr *sa = NULL;
277 conn = talloc_zero(mem_ctx, struct smbXcli_conn);
283 conn->write_fd = dup(fd);
284 if (conn->write_fd == -1) {
288 conn->remote_name = talloc_strdup(conn, remote_name);
289 if (conn->remote_name == NULL) {
294 ss = (void *)&conn->local_ss;
295 sa = (struct sockaddr *)ss;
296 sa_length = sizeof(conn->local_ss);
297 ret = getsockname(fd, sa, &sa_length);
301 ss = (void *)&conn->remote_ss;
302 sa = (struct sockaddr *)ss;
303 sa_length = sizeof(conn->remote_ss);
304 ret = getpeername(fd, sa, &sa_length);
309 conn->outgoing = tevent_queue_create(conn, "smbXcli_outgoing");
310 if (conn->outgoing == NULL) {
313 conn->pending = NULL;
315 conn->protocol = PROTOCOL_NONE;
317 switch (signing_state) {
318 case SMB_SIGNING_OFF:
320 conn->allow_signing = false;
321 conn->desire_signing = false;
322 conn->mandatory_signing = false;
324 case SMB_SIGNING_DEFAULT:
325 case SMB_SIGNING_IF_REQUIRED:
326 /* if the server requires it */
327 conn->allow_signing = true;
328 conn->desire_signing = false;
329 conn->mandatory_signing = false;
331 case SMB_SIGNING_REQUIRED:
333 conn->allow_signing = true;
334 conn->desire_signing = true;
335 conn->mandatory_signing = true;
339 conn->smb1.client.capabilities = smb1_capabilities;
340 conn->smb1.client.max_xmit = UINT16_MAX;
342 conn->smb1.capabilities = conn->smb1.client.capabilities;
343 conn->smb1.max_xmit = 1024;
347 /* initialise signing */
348 conn->smb1.signing = smb_signing_init(conn,
350 conn->desire_signing,
351 conn->mandatory_signing);
352 if (!conn->smb1.signing) {
356 conn->smb2.client.security_mode = SMB2_NEGOTIATE_SIGNING_ENABLED;
357 if (conn->mandatory_signing) {
358 conn->smb2.client.security_mode |= SMB2_NEGOTIATE_SIGNING_REQUIRED;
361 conn->smb2.client.guid = *client_guid;
363 conn->smb2.client.capabilities = smb2_capabilities;
365 conn->smb2.cur_credits = 1;
366 conn->smb2.max_credits = 0;
368 talloc_set_destructor(conn, smbXcli_conn_destructor);
372 if (conn->write_fd != -1) {
373 close(conn->write_fd);
379 bool smbXcli_conn_is_connected(struct smbXcli_conn *conn)
385 if (conn->read_fd == -1) {
392 enum protocol_types smbXcli_conn_protocol(struct smbXcli_conn *conn)
394 return conn->protocol;
397 bool smbXcli_conn_use_unicode(struct smbXcli_conn *conn)
399 if (conn->protocol >= PROTOCOL_SMB2_02) {
403 if (conn->smb1.capabilities & CAP_UNICODE) {
410 void smbXcli_conn_set_sockopt(struct smbXcli_conn *conn, const char *options)
412 set_socket_options(conn->read_fd, options);
415 const struct sockaddr_storage *smbXcli_conn_local_sockaddr(struct smbXcli_conn *conn)
417 return &conn->local_ss;
420 const struct sockaddr_storage *smbXcli_conn_remote_sockaddr(struct smbXcli_conn *conn)
422 return &conn->remote_ss;
425 const char *smbXcli_conn_remote_name(struct smbXcli_conn *conn)
427 return conn->remote_name;
430 uint16_t smbXcli_conn_max_requests(struct smbXcli_conn *conn)
432 if (conn->protocol >= PROTOCOL_SMB2_02) {
439 return conn->smb1.server.max_mux;
442 NTTIME smbXcli_conn_server_system_time(struct smbXcli_conn *conn)
444 if (conn->protocol >= PROTOCOL_SMB2_02) {
445 return conn->smb2.server.system_time;
448 return conn->smb1.server.system_time;
451 const DATA_BLOB *smbXcli_conn_server_gss_blob(struct smbXcli_conn *conn)
453 if (conn->protocol >= PROTOCOL_SMB2_02) {
454 return &conn->smb2.server.gss_blob;
457 return &conn->smb1.server.gss_blob;
460 const struct GUID *smbXcli_conn_server_guid(struct smbXcli_conn *conn)
462 if (conn->protocol >= PROTOCOL_SMB2_02) {
463 return &conn->smb2.server.guid;
466 return &conn->smb1.server.guid;
469 struct smbXcli_conn_samba_suicide_state {
470 struct smbXcli_conn *conn;
475 static void smbXcli_conn_samba_suicide_done(struct tevent_req *subreq);
477 struct tevent_req *smbXcli_conn_samba_suicide_send(TALLOC_CTX *mem_ctx,
478 struct tevent_context *ev,
479 struct smbXcli_conn *conn,
482 struct tevent_req *req, *subreq;
483 struct smbXcli_conn_samba_suicide_state *state;
485 req = tevent_req_create(mem_ctx, &state,
486 struct smbXcli_conn_samba_suicide_state);
491 SIVAL(state->buf, 4, 0x74697865);
492 SCVAL(state->buf, 8, exitcode);
493 _smb_setlen_nbt(state->buf, sizeof(state->buf)-4);
495 state->iov.iov_base = state->buf;
496 state->iov.iov_len = sizeof(state->buf);
498 subreq = writev_send(state, ev, conn->outgoing, conn->write_fd,
499 false, &state->iov, 1);
500 if (tevent_req_nomem(subreq, req)) {
501 return tevent_req_post(req, ev);
503 tevent_req_set_callback(subreq, smbXcli_conn_samba_suicide_done, req);
507 static void smbXcli_conn_samba_suicide_done(struct tevent_req *subreq)
509 struct tevent_req *req = tevent_req_callback_data(
510 subreq, struct tevent_req);
511 struct smbXcli_conn_samba_suicide_state *state = tevent_req_data(
512 req, struct smbXcli_conn_samba_suicide_state);
516 nwritten = writev_recv(subreq, &err);
518 if (nwritten == -1) {
519 NTSTATUS status = map_nt_error_from_unix_common(err);
520 smbXcli_conn_disconnect(state->conn, status);
523 tevent_req_done(req);
526 NTSTATUS smbXcli_conn_samba_suicide_recv(struct tevent_req *req)
528 return tevent_req_simple_recv_ntstatus(req);
531 NTSTATUS smbXcli_conn_samba_suicide(struct smbXcli_conn *conn,
534 TALLOC_CTX *frame = talloc_stackframe();
535 struct tevent_context *ev;
536 struct tevent_req *req;
537 NTSTATUS status = NT_STATUS_NO_MEMORY;
540 if (smbXcli_conn_has_async_calls(conn)) {
542 * Can't use sync call while an async call is in flight
544 status = NT_STATUS_INVALID_PARAMETER_MIX;
547 ev = tevent_context_init(frame);
551 req = smbXcli_conn_samba_suicide_send(frame, ev, conn, exitcode);
555 ok = tevent_req_poll(req, ev);
557 status = map_nt_error_from_unix_common(errno);
560 status = smbXcli_conn_samba_suicide_recv(req);
566 uint32_t smb1cli_conn_capabilities(struct smbXcli_conn *conn)
568 return conn->smb1.capabilities;
571 uint32_t smb1cli_conn_max_xmit(struct smbXcli_conn *conn)
573 return conn->smb1.max_xmit;
576 uint32_t smb1cli_conn_server_session_key(struct smbXcli_conn *conn)
578 return conn->smb1.server.session_key;
581 const uint8_t *smb1cli_conn_server_challenge(struct smbXcli_conn *conn)
583 return conn->smb1.server.challenge;
586 uint16_t smb1cli_conn_server_security_mode(struct smbXcli_conn *conn)
588 return conn->smb1.server.security_mode;
591 bool smb1cli_conn_server_readbraw(struct smbXcli_conn *conn)
593 return conn->smb1.server.readbraw;
596 bool smb1cli_conn_server_writebraw(struct smbXcli_conn *conn)
598 return conn->smb1.server.writebraw;
601 bool smb1cli_conn_server_lockread(struct smbXcli_conn *conn)
603 return conn->smb1.server.lockread;
606 bool smb1cli_conn_server_writeunlock(struct smbXcli_conn *conn)
608 return conn->smb1.server.writeunlock;
611 int smb1cli_conn_server_time_zone(struct smbXcli_conn *conn)
613 return conn->smb1.server.time_zone;
616 bool smb1cli_conn_activate_signing(struct smbXcli_conn *conn,
617 const DATA_BLOB user_session_key,
618 const DATA_BLOB response)
620 return smb_signing_activate(conn->smb1.signing,
625 bool smb1cli_conn_check_signing(struct smbXcli_conn *conn,
626 const uint8_t *buf, uint32_t seqnum)
628 return smb_signing_check_pdu(conn->smb1.signing, buf, seqnum);
631 bool smb1cli_conn_signing_is_active(struct smbXcli_conn *conn)
633 return smb_signing_is_active(conn->smb1.signing);
636 void smb1cli_conn_set_encryption(struct smbXcli_conn *conn,
637 struct smb_trans_enc_state *es)
639 /* Replace the old state, if any. */
640 if (conn->smb1.trans_enc) {
641 TALLOC_FREE(conn->smb1.trans_enc);
643 conn->smb1.trans_enc = es;
646 bool smb1cli_conn_encryption_on(struct smbXcli_conn *conn)
648 return common_encryption_on(conn->smb1.trans_enc);
652 static NTSTATUS smb1cli_pull_raw_error(const uint8_t *hdr)
654 uint32_t flags2 = SVAL(hdr, HDR_FLG2);
655 NTSTATUS status = NT_STATUS(IVAL(hdr, HDR_RCLS));
657 if (NT_STATUS_IS_OK(status)) {
661 if (flags2 & FLAGS2_32_BIT_ERROR_CODES) {
665 return NT_STATUS_DOS(CVAL(hdr, HDR_RCLS), SVAL(hdr, HDR_ERR));
669 * Is the SMB command able to hold an AND_X successor
670 * @param[in] cmd The SMB command in question
671 * @retval Can we add a chained request after "cmd"?
673 bool smb1cli_is_andx_req(uint8_t cmd)
693 static uint16_t smb1cli_alloc_mid(struct smbXcli_conn *conn)
695 size_t num_pending = talloc_array_length(conn->pending);
701 result = conn->smb1.mid++;
702 if ((result == 0) || (result == 0xffff)) {
706 for (i=0; i<num_pending; i++) {
707 if (result == smb1cli_req_mid(conn->pending[i])) {
712 if (i == num_pending) {
718 void smbXcli_req_unset_pending(struct tevent_req *req)
720 struct smbXcli_req_state *state =
722 struct smbXcli_req_state);
723 struct smbXcli_conn *conn = state->conn;
724 size_t num_pending = talloc_array_length(conn->pending);
727 if (state->smb1.mid != 0) {
729 * This is a [nt]trans[2] request which waits
730 * for more than one reply.
735 talloc_set_destructor(req, NULL);
737 if (num_pending == 1) {
739 * The pending read_smb tevent_req is a child of
740 * conn->pending. So if nothing is pending anymore, we need to
741 * delete the socket read fde.
743 TALLOC_FREE(conn->pending);
744 conn->read_smb_req = NULL;
748 for (i=0; i<num_pending; i++) {
749 if (req == conn->pending[i]) {
753 if (i == num_pending) {
755 * Something's seriously broken. Just returning here is the
756 * right thing nevertheless, the point of this routine is to
757 * remove ourselves from conn->pending.
763 * Remove ourselves from the conn->pending array
765 for (; i < (num_pending - 1); i++) {
766 conn->pending[i] = conn->pending[i+1];
770 * No NULL check here, we're shrinking by sizeof(void *), and
771 * talloc_realloc just adjusts the size for this.
773 conn->pending = talloc_realloc(NULL, conn->pending, struct tevent_req *,
778 static int smbXcli_req_destructor(struct tevent_req *req)
780 struct smbXcli_req_state *state =
782 struct smbXcli_req_state);
785 * Make sure we really remove it from
786 * the pending array on destruction.
789 smbXcli_req_unset_pending(req);
793 static bool smb1cli_req_cancel(struct tevent_req *req);
794 static bool smb2cli_req_cancel(struct tevent_req *req);
796 static bool smbXcli_req_cancel(struct tevent_req *req)
798 struct smbXcli_req_state *state =
800 struct smbXcli_req_state);
802 if (!smbXcli_conn_is_connected(state->conn)) {
806 if (state->conn->protocol == PROTOCOL_NONE) {
810 if (state->conn->protocol >= PROTOCOL_SMB2_02) {
811 return smb2cli_req_cancel(req);
814 return smb1cli_req_cancel(req);
817 static bool smbXcli_conn_receive_next(struct smbXcli_conn *conn);
819 bool smbXcli_req_set_pending(struct tevent_req *req)
821 struct smbXcli_req_state *state =
823 struct smbXcli_req_state);
824 struct smbXcli_conn *conn;
825 struct tevent_req **pending;
830 if (!smbXcli_conn_is_connected(conn)) {
834 num_pending = talloc_array_length(conn->pending);
836 pending = talloc_realloc(conn, conn->pending, struct tevent_req *,
838 if (pending == NULL) {
841 pending[num_pending] = req;
842 conn->pending = pending;
843 talloc_set_destructor(req, smbXcli_req_destructor);
844 tevent_req_set_cancel_fn(req, smbXcli_req_cancel);
846 if (!smbXcli_conn_receive_next(conn)) {
848 * the caller should notify the current request
850 * And all other pending requests get notified
851 * by smbXcli_conn_disconnect().
853 smbXcli_req_unset_pending(req);
854 smbXcli_conn_disconnect(conn, NT_STATUS_NO_MEMORY);
861 static void smbXcli_conn_received(struct tevent_req *subreq);
863 static bool smbXcli_conn_receive_next(struct smbXcli_conn *conn)
865 size_t num_pending = talloc_array_length(conn->pending);
866 struct tevent_req *req;
867 struct smbXcli_req_state *state;
869 if (conn->read_smb_req != NULL) {
873 if (num_pending == 0) {
874 if (conn->smb2.mid < UINT64_MAX) {
875 /* no more pending requests, so we are done for now */
880 * If there are no more SMB2 requests possible,
881 * because we are out of message ids,
882 * we need to disconnect.
884 smbXcli_conn_disconnect(conn, NT_STATUS_CONNECTION_ABORTED);
888 req = conn->pending[0];
889 state = tevent_req_data(req, struct smbXcli_req_state);
892 * We're the first ones, add the read_smb request that waits for the
893 * answer from the server
895 conn->read_smb_req = read_smb_send(conn->pending,
898 if (conn->read_smb_req == NULL) {
901 tevent_req_set_callback(conn->read_smb_req, smbXcli_conn_received, conn);
905 void smbXcli_conn_disconnect(struct smbXcli_conn *conn, NTSTATUS status)
907 tevent_queue_stop(conn->outgoing);
909 if (conn->read_fd != -1) {
910 close(conn->read_fd);
912 if (conn->write_fd != -1) {
913 close(conn->write_fd);
919 * Cancel all pending requests. We do not do a for-loop walking
920 * conn->pending because that array changes in
921 * smbXcli_req_unset_pending.
923 while (talloc_array_length(conn->pending) > 0) {
924 struct tevent_req *req;
925 struct smbXcli_req_state *state;
926 struct tevent_req **chain;
930 req = conn->pending[0];
931 state = tevent_req_data(req, struct smbXcli_req_state);
933 if (state->smb1.chained_requests == NULL) {
935 * We're dead. No point waiting for trans2
940 smbXcli_req_unset_pending(req);
942 if (NT_STATUS_IS_OK(status)) {
943 /* do not notify the callers */
948 * we need to defer the callback, because we may notify
949 * more then one caller.
951 tevent_req_defer_callback(req, state->ev);
952 tevent_req_nterror(req, status);
956 chain = talloc_move(conn, &state->smb1.chained_requests);
957 num_chained = talloc_array_length(chain);
959 for (i=0; i<num_chained; i++) {
961 state = tevent_req_data(req, struct smbXcli_req_state);
964 * We're dead. No point waiting for trans2
969 smbXcli_req_unset_pending(req);
971 if (NT_STATUS_IS_OK(status)) {
972 /* do not notify the callers */
977 * we need to defer the callback, because we may notify
978 * more than one caller.
980 tevent_req_defer_callback(req, state->ev);
981 tevent_req_nterror(req, status);
988 * Fetch a smb request's mid. Only valid after the request has been sent by
989 * smb1cli_req_send().
991 uint16_t smb1cli_req_mid(struct tevent_req *req)
993 struct smbXcli_req_state *state =
995 struct smbXcli_req_state);
997 if (state->smb1.mid != 0) {
998 return state->smb1.mid;
1001 return SVAL(state->smb1.hdr, HDR_MID);
1004 void smb1cli_req_set_mid(struct tevent_req *req, uint16_t mid)
1006 struct smbXcli_req_state *state =
1007 tevent_req_data(req,
1008 struct smbXcli_req_state);
1010 state->smb1.mid = mid;
1013 uint32_t smb1cli_req_seqnum(struct tevent_req *req)
1015 struct smbXcli_req_state *state =
1016 tevent_req_data(req,
1017 struct smbXcli_req_state);
1019 return state->smb1.seqnum;
1022 void smb1cli_req_set_seqnum(struct tevent_req *req, uint32_t seqnum)
1024 struct smbXcli_req_state *state =
1025 tevent_req_data(req,
1026 struct smbXcli_req_state);
1028 state->smb1.seqnum = seqnum;
1031 static size_t smbXcli_iov_len(const struct iovec *iov, int count)
1035 for (i=0; i<count; i++) {
1036 result += iov[i].iov_len;
1041 static uint8_t *smbXcli_iov_concat(TALLOC_CTX *mem_ctx,
1042 const struct iovec *iov,
1045 size_t len = smbXcli_iov_len(iov, count);
1050 buf = talloc_array(mem_ctx, uint8_t, len);
1055 for (i=0; i<count; i++) {
1056 memcpy(buf+copied, iov[i].iov_base, iov[i].iov_len);
1057 copied += iov[i].iov_len;
1062 static void smb1cli_req_flags(enum protocol_types protocol,
1063 uint32_t smb1_capabilities,
1064 uint8_t smb_command,
1065 uint8_t additional_flags,
1066 uint8_t clear_flags,
1068 uint16_t additional_flags2,
1069 uint16_t clear_flags2,
1073 uint16_t flags2 = 0;
1075 if (protocol >= PROTOCOL_LANMAN1) {
1076 flags |= FLAG_CASELESS_PATHNAMES;
1077 flags |= FLAG_CANONICAL_PATHNAMES;
1080 if (protocol >= PROTOCOL_LANMAN2) {
1081 flags2 |= FLAGS2_LONG_PATH_COMPONENTS;
1082 flags2 |= FLAGS2_EXTENDED_ATTRIBUTES;
1085 if (protocol >= PROTOCOL_NT1) {
1086 flags2 |= FLAGS2_IS_LONG_NAME;
1088 if (smb1_capabilities & CAP_UNICODE) {
1089 flags2 |= FLAGS2_UNICODE_STRINGS;
1091 if (smb1_capabilities & CAP_STATUS32) {
1092 flags2 |= FLAGS2_32_BIT_ERROR_CODES;
1094 if (smb1_capabilities & CAP_EXTENDED_SECURITY) {
1095 flags2 |= FLAGS2_EXTENDED_SECURITY;
1099 flags |= additional_flags;
1100 flags &= ~clear_flags;
1101 flags2 |= additional_flags2;
1102 flags2 &= ~clear_flags2;
1108 static void smb1cli_req_cancel_done(struct tevent_req *subreq);
1110 static bool smb1cli_req_cancel(struct tevent_req *req)
1112 struct smbXcli_req_state *state =
1113 tevent_req_data(req,
1114 struct smbXcli_req_state);
1119 struct tevent_req *subreq;
1122 flags = CVAL(state->smb1.hdr, HDR_FLG);
1123 flags2 = SVAL(state->smb1.hdr, HDR_FLG2);
1124 pid = SVAL(state->smb1.hdr, HDR_PID);
1125 pid |= SVAL(state->smb1.hdr, HDR_PIDHIGH)<<16;
1126 mid = SVAL(state->smb1.hdr, HDR_MID);
1128 subreq = smb1cli_req_create(state, state->ev,
1138 0, NULL); /* bytes */
1139 if (subreq == NULL) {
1142 smb1cli_req_set_mid(subreq, mid);
1144 status = smb1cli_req_chain_submit(&subreq, 1);
1145 if (!NT_STATUS_IS_OK(status)) {
1146 TALLOC_FREE(subreq);
1149 smb1cli_req_set_mid(subreq, 0);
1151 tevent_req_set_callback(subreq, smb1cli_req_cancel_done, NULL);
1156 static void smb1cli_req_cancel_done(struct tevent_req *subreq)
1158 /* we do not care about the result */
1159 TALLOC_FREE(subreq);
1162 struct tevent_req *smb1cli_req_create(TALLOC_CTX *mem_ctx,
1163 struct tevent_context *ev,
1164 struct smbXcli_conn *conn,
1165 uint8_t smb_command,
1166 uint8_t additional_flags,
1167 uint8_t clear_flags,
1168 uint16_t additional_flags2,
1169 uint16_t clear_flags2,
1170 uint32_t timeout_msec,
1172 struct smbXcli_tcon *tcon,
1173 struct smbXcli_session *session,
1174 uint8_t wct, uint16_t *vwv,
1176 struct iovec *bytes_iov)
1178 struct tevent_req *req;
1179 struct smbXcli_req_state *state;
1181 uint16_t flags2 = 0;
1185 if (iov_count > MAX_SMB_IOV) {
1187 * Should not happen :-)
1192 req = tevent_req_create(mem_ctx, &state,
1193 struct smbXcli_req_state);
1199 state->session = session;
1203 uid = session->smb1.session_id;
1207 tid = tcon->smb1.tcon_id;
1210 state->smb1.recv_cmd = 0xFF;
1211 state->smb1.recv_status = NT_STATUS_INTERNAL_ERROR;
1212 state->smb1.recv_iov = talloc_zero_array(state, struct iovec, 3);
1213 if (state->smb1.recv_iov == NULL) {
1218 smb1cli_req_flags(conn->protocol,
1219 conn->smb1.capabilities,
1228 SIVAL(state->smb1.hdr, 0, SMB_MAGIC);
1229 SCVAL(state->smb1.hdr, HDR_COM, smb_command);
1230 SIVAL(state->smb1.hdr, HDR_RCLS, NT_STATUS_V(NT_STATUS_OK));
1231 SCVAL(state->smb1.hdr, HDR_FLG, flags);
1232 SSVAL(state->smb1.hdr, HDR_FLG2, flags2);
1233 SSVAL(state->smb1.hdr, HDR_PIDHIGH, pid >> 16);
1234 SSVAL(state->smb1.hdr, HDR_TID, tid);
1235 SSVAL(state->smb1.hdr, HDR_PID, pid);
1236 SSVAL(state->smb1.hdr, HDR_UID, uid);
1237 SSVAL(state->smb1.hdr, HDR_MID, 0); /* this comes later */
1238 SCVAL(state->smb1.hdr, HDR_WCT, wct);
1240 state->smb1.vwv = vwv;
1242 SSVAL(state->smb1.bytecount_buf, 0, smbXcli_iov_len(bytes_iov, iov_count));
1244 state->smb1.iov[0].iov_base = (void *)state->length_hdr;
1245 state->smb1.iov[0].iov_len = sizeof(state->length_hdr);
1246 state->smb1.iov[1].iov_base = (void *)state->smb1.hdr;
1247 state->smb1.iov[1].iov_len = sizeof(state->smb1.hdr);
1248 state->smb1.iov[2].iov_base = (void *)state->smb1.vwv;
1249 state->smb1.iov[2].iov_len = wct * sizeof(uint16_t);
1250 state->smb1.iov[3].iov_base = (void *)state->smb1.bytecount_buf;
1251 state->smb1.iov[3].iov_len = sizeof(uint16_t);
1253 if (iov_count != 0) {
1254 memcpy(&state->smb1.iov[4], bytes_iov,
1255 iov_count * sizeof(*bytes_iov));
1257 state->smb1.iov_count = iov_count + 4;
1259 if (timeout_msec > 0) {
1260 struct timeval endtime;
1262 endtime = timeval_current_ofs_msec(timeout_msec);
1263 if (!tevent_req_set_endtime(req, ev, endtime)) {
1268 switch (smb_command) {
1272 state->one_way = true;
1275 state->one_way = true;
1276 state->smb1.one_way_seqnum = true;
1280 (CVAL(vwv+3, 0) == LOCKING_ANDX_OPLOCK_RELEASE)) {
1281 state->one_way = true;
1289 static NTSTATUS smb1cli_conn_signv(struct smbXcli_conn *conn,
1290 struct iovec *iov, int iov_count,
1292 bool one_way_seqnum)
1294 TALLOC_CTX *frame = NULL;
1298 * Obvious optimization: Make cli_calculate_sign_mac work with struct
1299 * iovec directly. MD5Update would do that just fine.
1302 if (iov_count < 4) {
1303 return NT_STATUS_INVALID_PARAMETER_MIX;
1305 if (iov[0].iov_len != NBT_HDR_SIZE) {
1306 return NT_STATUS_INVALID_PARAMETER_MIX;
1308 if (iov[1].iov_len != (MIN_SMB_SIZE-sizeof(uint16_t))) {
1309 return NT_STATUS_INVALID_PARAMETER_MIX;
1311 if (iov[2].iov_len > (0xFF * sizeof(uint16_t))) {
1312 return NT_STATUS_INVALID_PARAMETER_MIX;
1314 if (iov[3].iov_len != sizeof(uint16_t)) {
1315 return NT_STATUS_INVALID_PARAMETER_MIX;
1318 frame = talloc_stackframe();
1320 buf = smbXcli_iov_concat(frame, iov, iov_count);
1322 return NT_STATUS_NO_MEMORY;
1325 *seqnum = smb_signing_next_seqnum(conn->smb1.signing,
1327 smb_signing_sign_pdu(conn->smb1.signing, buf, *seqnum);
1328 memcpy(iov[1].iov_base, buf+4, iov[1].iov_len);
1331 return NT_STATUS_OK;
1334 static void smb1cli_req_writev_done(struct tevent_req *subreq);
1335 static NTSTATUS smb1cli_conn_dispatch_incoming(struct smbXcli_conn *conn,
1336 TALLOC_CTX *tmp_mem,
1339 static NTSTATUS smb1cli_req_writev_submit(struct tevent_req *req,
1340 struct smbXcli_req_state *state,
1341 struct iovec *iov, int iov_count)
1343 struct tevent_req *subreq;
1348 if (!smbXcli_conn_is_connected(state->conn)) {
1349 return NT_STATUS_CONNECTION_DISCONNECTED;
1352 if (state->conn->protocol > PROTOCOL_NT1) {
1353 return NT_STATUS_REVISION_MISMATCH;
1356 if (iov_count < 4) {
1357 return NT_STATUS_INVALID_PARAMETER_MIX;
1359 if (iov[0].iov_len != NBT_HDR_SIZE) {
1360 return NT_STATUS_INVALID_PARAMETER_MIX;
1362 if (iov[1].iov_len != (MIN_SMB_SIZE-sizeof(uint16_t))) {
1363 return NT_STATUS_INVALID_PARAMETER_MIX;
1365 if (iov[2].iov_len > (0xFF * sizeof(uint16_t))) {
1366 return NT_STATUS_INVALID_PARAMETER_MIX;
1368 if (iov[3].iov_len != sizeof(uint16_t)) {
1369 return NT_STATUS_INVALID_PARAMETER_MIX;
1372 cmd = CVAL(iov[1].iov_base, HDR_COM);
1373 if (cmd == SMBreadBraw) {
1374 if (smbXcli_conn_has_async_calls(state->conn)) {
1375 return NT_STATUS_INVALID_PARAMETER_MIX;
1377 state->conn->smb1.read_braw_req = req;
1380 if (state->smb1.mid != 0) {
1381 mid = state->smb1.mid;
1383 mid = smb1cli_alloc_mid(state->conn);
1385 SSVAL(iov[1].iov_base, HDR_MID, mid);
1387 _smb_setlen_nbt(iov[0].iov_base, smbXcli_iov_len(&iov[1], iov_count-1));
1389 status = smb1cli_conn_signv(state->conn, iov, iov_count,
1390 &state->smb1.seqnum,
1391 state->smb1.one_way_seqnum);
1393 if (!NT_STATUS_IS_OK(status)) {
1398 * If we supported multiple encrytion contexts
1399 * here we'd look up based on tid.
1401 if (common_encryption_on(state->conn->smb1.trans_enc)) {
1402 char *buf, *enc_buf;
1404 buf = (char *)smbXcli_iov_concat(talloc_tos(), iov, iov_count);
1406 return NT_STATUS_NO_MEMORY;
1408 status = common_encrypt_buffer(state->conn->smb1.trans_enc,
1409 (char *)buf, &enc_buf);
1411 if (!NT_STATUS_IS_OK(status)) {
1412 DEBUG(0, ("Error in encrypting client message: %s\n",
1413 nt_errstr(status)));
1416 buf = (char *)talloc_memdup(state, enc_buf,
1417 smb_len_nbt(enc_buf)+4);
1420 return NT_STATUS_NO_MEMORY;
1422 iov[0].iov_base = (void *)buf;
1423 iov[0].iov_len = talloc_get_size(buf);
1427 if (state->conn->dispatch_incoming == NULL) {
1428 state->conn->dispatch_incoming = smb1cli_conn_dispatch_incoming;
1431 tevent_req_set_cancel_fn(req, smbXcli_req_cancel);
1433 subreq = writev_send(state, state->ev, state->conn->outgoing,
1434 state->conn->write_fd, false, iov, iov_count);
1435 if (subreq == NULL) {
1436 return NT_STATUS_NO_MEMORY;
1438 tevent_req_set_callback(subreq, smb1cli_req_writev_done, req);
1439 return NT_STATUS_OK;
1442 struct tevent_req *smb1cli_req_send(TALLOC_CTX *mem_ctx,
1443 struct tevent_context *ev,
1444 struct smbXcli_conn *conn,
1445 uint8_t smb_command,
1446 uint8_t additional_flags,
1447 uint8_t clear_flags,
1448 uint16_t additional_flags2,
1449 uint16_t clear_flags2,
1450 uint32_t timeout_msec,
1452 struct smbXcli_tcon *tcon,
1453 struct smbXcli_session *session,
1454 uint8_t wct, uint16_t *vwv,
1456 const uint8_t *bytes)
1458 struct tevent_req *req;
1462 iov.iov_base = discard_const_p(void, bytes);
1463 iov.iov_len = num_bytes;
1465 req = smb1cli_req_create(mem_ctx, ev, conn, smb_command,
1466 additional_flags, clear_flags,
1467 additional_flags2, clear_flags2,
1474 if (!tevent_req_is_in_progress(req)) {
1475 return tevent_req_post(req, ev);
1477 status = smb1cli_req_chain_submit(&req, 1);
1478 if (tevent_req_nterror(req, status)) {
1479 return tevent_req_post(req, ev);
1484 static void smb1cli_req_writev_done(struct tevent_req *subreq)
1486 struct tevent_req *req =
1487 tevent_req_callback_data(subreq,
1489 struct smbXcli_req_state *state =
1490 tevent_req_data(req,
1491 struct smbXcli_req_state);
1495 nwritten = writev_recv(subreq, &err);
1496 TALLOC_FREE(subreq);
1497 if (nwritten == -1) {
1498 NTSTATUS status = map_nt_error_from_unix_common(err);
1499 smbXcli_conn_disconnect(state->conn, status);
1503 if (state->one_way) {
1504 state->inbuf = NULL;
1505 tevent_req_done(req);
1509 if (!smbXcli_req_set_pending(req)) {
1510 tevent_req_nterror(req, NT_STATUS_NO_MEMORY);
1515 static void smbXcli_conn_received(struct tevent_req *subreq)
1517 struct smbXcli_conn *conn =
1518 tevent_req_callback_data(subreq,
1519 struct smbXcli_conn);
1520 TALLOC_CTX *frame = talloc_stackframe();
1526 if (subreq != conn->read_smb_req) {
1527 DEBUG(1, ("Internal error: cli_smb_received called with "
1528 "unexpected subreq\n"));
1529 status = NT_STATUS_INTERNAL_ERROR;
1530 smbXcli_conn_disconnect(conn, status);
1534 conn->read_smb_req = NULL;
1536 received = read_smb_recv(subreq, frame, &inbuf, &err);
1537 TALLOC_FREE(subreq);
1538 if (received == -1) {
1539 status = map_nt_error_from_unix_common(err);
1540 smbXcli_conn_disconnect(conn, status);
1545 status = conn->dispatch_incoming(conn, frame, inbuf);
1547 if (NT_STATUS_IS_OK(status)) {
1549 * We should not do any more processing
1550 * as the dispatch function called
1551 * tevent_req_done().
1554 } else if (!NT_STATUS_EQUAL(status, NT_STATUS_RETRY)) {
1556 * We got an error, so notify all pending requests
1558 smbXcli_conn_disconnect(conn, status);
1563 * We got NT_STATUS_RETRY, so we may ask for a
1564 * next incoming pdu.
1566 if (!smbXcli_conn_receive_next(conn)) {
1567 smbXcli_conn_disconnect(conn, NT_STATUS_NO_MEMORY);
1571 static NTSTATUS smb1cli_inbuf_parse_chain(uint8_t *buf, TALLOC_CTX *mem_ctx,
1572 struct iovec **piov, int *pnum_iov)
1583 buflen = smb_len_nbt(buf);
1586 hdr = buf + NBT_HDR_SIZE;
1588 if (buflen < MIN_SMB_SIZE) {
1589 return NT_STATUS_INVALID_NETWORK_RESPONSE;
1593 * This returns iovec elements in the following order:
1608 iov = talloc_array(mem_ctx, struct iovec, num_iov);
1610 return NT_STATUS_NO_MEMORY;
1612 iov[0].iov_base = hdr;
1613 iov[0].iov_len = HDR_WCT;
1616 cmd = CVAL(hdr, HDR_COM);
1620 size_t len = buflen - taken;
1622 struct iovec *iov_tmp;
1629 * we need at least WCT and BCC
1631 needed = sizeof(uint8_t) + sizeof(uint16_t);
1633 DEBUG(10, ("%s: %d bytes left, expected at least %d\n",
1634 __location__, (int)len, (int)needed));
1639 * Now we check if the specified words are there
1641 wct = CVAL(hdr, wct_ofs);
1642 needed += wct * sizeof(uint16_t);
1644 DEBUG(10, ("%s: %d bytes left, expected at least %d\n",
1645 __location__, (int)len, (int)needed));
1650 * Now we check if the specified bytes are there
1652 bcc_ofs = wct_ofs + sizeof(uint8_t) + wct * sizeof(uint16_t);
1653 bcc = SVAL(hdr, bcc_ofs);
1654 needed += bcc * sizeof(uint8_t);
1656 DEBUG(10, ("%s: %d bytes left, expected at least %d\n",
1657 __location__, (int)len, (int)needed));
1662 * we allocate 2 iovec structures for words and bytes
1664 iov_tmp = talloc_realloc(mem_ctx, iov, struct iovec,
1666 if (iov_tmp == NULL) {
1668 return NT_STATUS_NO_MEMORY;
1671 cur = &iov[num_iov];
1674 cur[0].iov_len = wct * sizeof(uint16_t);
1675 cur[0].iov_base = hdr + (wct_ofs + sizeof(uint8_t));
1676 cur[1].iov_len = bcc * sizeof(uint8_t);
1677 cur[1].iov_base = hdr + (bcc_ofs + sizeof(uint16_t));
1681 if (!smb1cli_is_andx_req(cmd)) {
1683 * If the current command does not have AndX chanining
1689 if (wct == 0 && bcc == 0) {
1691 * An empty response also ends the chain,
1692 * most likely with an error.
1698 DEBUG(10, ("%s: wct[%d] < 2 for cmd[0x%02X]\n",
1699 __location__, (int)wct, (int)cmd));
1702 cmd = CVAL(cur[0].iov_base, 0);
1705 * If it is the end of the chain we are also done.
1709 wct_ofs = SVAL(cur[0].iov_base, 2);
1711 if (wct_ofs < taken) {
1712 return NT_STATUS_INVALID_NETWORK_RESPONSE;
1714 if (wct_ofs > buflen) {
1715 return NT_STATUS_INVALID_NETWORK_RESPONSE;
1719 * we consumed everything up to the start of the next
1725 remaining = buflen - taken;
1727 if (remaining > 0 && num_iov >= 3) {
1729 * The last DATA block gets the remaining
1730 * bytes, this is needed to support
1731 * CAP_LARGE_WRITEX and CAP_LARGE_READX.
1733 iov[num_iov-1].iov_len += remaining;
1737 *pnum_iov = num_iov;
1738 return NT_STATUS_OK;
1742 return NT_STATUS_INVALID_NETWORK_RESPONSE;
1745 static NTSTATUS smb1cli_conn_dispatch_incoming(struct smbXcli_conn *conn,
1746 TALLOC_CTX *tmp_mem,
1749 struct tevent_req *req;
1750 struct smbXcli_req_state *state;
1757 const uint8_t *inhdr = inbuf + NBT_HDR_SIZE;
1758 struct iovec *iov = NULL;
1760 struct tevent_req **chain = NULL;
1761 size_t num_chained = 0;
1762 size_t num_responses = 0;
1764 if (conn->smb1.read_braw_req != NULL) {
1765 req = conn->smb1.read_braw_req;
1766 conn->smb1.read_braw_req = NULL;
1767 state = tevent_req_data(req, struct smbXcli_req_state);
1769 smbXcli_req_unset_pending(req);
1771 if (state->smb1.recv_iov == NULL) {
1773 * For requests with more than
1774 * one response, we have to readd the
1777 state->smb1.recv_iov = talloc_zero_array(state,
1780 if (tevent_req_nomem(state->smb1.recv_iov, req)) {
1781 return NT_STATUS_OK;
1785 state->smb1.recv_iov[0].iov_base = (void *)(inbuf + NBT_HDR_SIZE);
1786 state->smb1.recv_iov[0].iov_len = smb_len_nbt(inbuf);
1787 ZERO_STRUCT(state->smb1.recv_iov[1]);
1788 ZERO_STRUCT(state->smb1.recv_iov[2]);
1790 state->smb1.recv_cmd = SMBreadBraw;
1791 state->smb1.recv_status = NT_STATUS_OK;
1792 state->inbuf = talloc_move(state->smb1.recv_iov, &inbuf);
1794 tevent_req_done(req);
1795 return NT_STATUS_OK;
1798 if ((IVAL(inhdr, 0) != SMB_MAGIC) /* 0xFF"SMB" */
1799 && (SVAL(inhdr, 0) != 0x45ff)) /* 0xFF"E" */ {
1800 DEBUG(10, ("Got non-SMB PDU\n"));
1801 return NT_STATUS_INVALID_NETWORK_RESPONSE;
1805 * If we supported multiple encrytion contexts
1806 * here we'd look up based on tid.
1808 if (common_encryption_on(conn->smb1.trans_enc)
1809 && (CVAL(inbuf, 0) == 0)) {
1810 uint16_t enc_ctx_num;
1812 status = get_enc_ctx_num(inbuf, &enc_ctx_num);
1813 if (!NT_STATUS_IS_OK(status)) {
1814 DEBUG(10, ("get_enc_ctx_num returned %s\n",
1815 nt_errstr(status)));
1819 if (enc_ctx_num != conn->smb1.trans_enc->enc_ctx_num) {
1820 DEBUG(10, ("wrong enc_ctx %d, expected %d\n",
1822 conn->smb1.trans_enc->enc_ctx_num));
1823 return NT_STATUS_INVALID_HANDLE;
1826 status = common_decrypt_buffer(conn->smb1.trans_enc,
1828 if (!NT_STATUS_IS_OK(status)) {
1829 DEBUG(10, ("common_decrypt_buffer returned %s\n",
1830 nt_errstr(status)));
1835 mid = SVAL(inhdr, HDR_MID);
1836 num_pending = talloc_array_length(conn->pending);
1838 for (i=0; i<num_pending; i++) {
1839 if (mid == smb1cli_req_mid(conn->pending[i])) {
1843 if (i == num_pending) {
1844 /* Dump unexpected reply */
1845 return NT_STATUS_RETRY;
1848 oplock_break = false;
1850 if (mid == 0xffff) {
1852 * Paranoia checks that this is really an oplock break request.
1854 oplock_break = (smb_len_nbt(inbuf) == 51); /* hdr + 8 words */
1855 oplock_break &= ((CVAL(inhdr, HDR_FLG) & FLAG_REPLY) == 0);
1856 oplock_break &= (CVAL(inhdr, HDR_COM) == SMBlockingX);
1857 oplock_break &= (SVAL(inhdr, HDR_VWV+VWV(6)) == 0);
1858 oplock_break &= (SVAL(inhdr, HDR_VWV+VWV(7)) == 0);
1860 if (!oplock_break) {
1861 /* Dump unexpected reply */
1862 return NT_STATUS_RETRY;
1866 req = conn->pending[i];
1867 state = tevent_req_data(req, struct smbXcli_req_state);
1869 if (!oplock_break /* oplock breaks are not signed */
1870 && !smb_signing_check_pdu(conn->smb1.signing,
1871 inbuf, state->smb1.seqnum+1)) {
1872 DEBUG(10, ("cli_check_sign_mac failed\n"));
1873 return NT_STATUS_ACCESS_DENIED;
1876 status = smb1cli_inbuf_parse_chain(inbuf, tmp_mem,
1878 if (!NT_STATUS_IS_OK(status)) {
1879 DEBUG(10,("smb1cli_inbuf_parse_chain - %s\n",
1880 nt_errstr(status)));
1884 cmd = CVAL(inhdr, HDR_COM);
1885 status = smb1cli_pull_raw_error(inhdr);
1887 if (state->smb1.chained_requests == NULL) {
1889 return NT_STATUS_INVALID_NETWORK_RESPONSE;
1892 smbXcli_req_unset_pending(req);
1894 if (state->smb1.recv_iov == NULL) {
1896 * For requests with more than
1897 * one response, we have to readd the
1900 state->smb1.recv_iov = talloc_zero_array(state,
1903 if (tevent_req_nomem(state->smb1.recv_iov, req)) {
1904 return NT_STATUS_OK;
1908 state->smb1.recv_cmd = cmd;
1909 state->smb1.recv_status = status;
1910 state->inbuf = talloc_move(state->smb1.recv_iov, &inbuf);
1912 state->smb1.recv_iov[0] = iov[0];
1913 state->smb1.recv_iov[1] = iov[1];
1914 state->smb1.recv_iov[2] = iov[2];
1916 if (talloc_array_length(conn->pending) == 0) {
1917 tevent_req_done(req);
1918 return NT_STATUS_OK;
1921 tevent_req_defer_callback(req, state->ev);
1922 tevent_req_done(req);
1923 return NT_STATUS_RETRY;
1926 chain = talloc_move(tmp_mem, &state->smb1.chained_requests);
1927 num_chained = talloc_array_length(chain);
1928 num_responses = (num_iov - 1)/2;
1930 if (num_responses > num_chained) {
1931 return NT_STATUS_INVALID_NETWORK_RESPONSE;
1934 for (i=0; i<num_chained; i++) {
1935 size_t iov_idx = 1 + (i*2);
1936 struct iovec *cur = &iov[iov_idx];
1940 state = tevent_req_data(req, struct smbXcli_req_state);
1942 smbXcli_req_unset_pending(req);
1945 * as we finish multiple requests here
1946 * we need to defer the callbacks as
1947 * they could destroy our current stack state.
1949 tevent_req_defer_callback(req, state->ev);
1951 if (i >= num_responses) {
1952 tevent_req_nterror(req, NT_STATUS_REQUEST_ABORTED);
1956 if (state->smb1.recv_iov == NULL) {
1958 * For requests with more than
1959 * one response, we have to readd the
1962 state->smb1.recv_iov = talloc_zero_array(state,
1965 if (tevent_req_nomem(state->smb1.recv_iov, req)) {
1970 state->smb1.recv_cmd = cmd;
1972 if (i == (num_responses - 1)) {
1974 * The last request in the chain gets the status
1976 state->smb1.recv_status = status;
1978 cmd = CVAL(cur[0].iov_base, 0);
1979 state->smb1.recv_status = NT_STATUS_OK;
1982 state->inbuf = inbuf;
1985 * Note: here we use talloc_reference() in a way
1986 * that does not expose it to the caller.
1988 inbuf_ref = talloc_reference(state->smb1.recv_iov, inbuf);
1989 if (tevent_req_nomem(inbuf_ref, req)) {
1993 /* copy the related buffers */
1994 state->smb1.recv_iov[0] = iov[0];
1995 state->smb1.recv_iov[1] = cur[0];
1996 state->smb1.recv_iov[2] = cur[1];
1998 tevent_req_done(req);
2001 return NT_STATUS_RETRY;
2004 NTSTATUS smb1cli_req_recv(struct tevent_req *req,
2005 TALLOC_CTX *mem_ctx,
2006 struct iovec **piov,
2010 uint32_t *pvwv_offset,
2011 uint32_t *pnum_bytes,
2013 uint32_t *pbytes_offset,
2015 const struct smb1cli_req_expected_response *expected,
2016 size_t num_expected)
2018 struct smbXcli_req_state *state =
2019 tevent_req_data(req,
2020 struct smbXcli_req_state);
2021 NTSTATUS status = NT_STATUS_OK;
2022 struct iovec *recv_iov = NULL;
2023 uint8_t *hdr = NULL;
2025 uint32_t vwv_offset = 0;
2026 uint16_t *vwv = NULL;
2027 uint32_t num_bytes = 0;
2028 uint32_t bytes_offset = 0;
2029 uint8_t *bytes = NULL;
2031 bool found_status = false;
2032 bool found_size = false;
2046 if (pvwv_offset != NULL) {
2049 if (pnum_bytes != NULL) {
2052 if (pbytes != NULL) {
2055 if (pbytes_offset != NULL) {
2058 if (pinbuf != NULL) {
2062 if (state->inbuf != NULL) {
2063 recv_iov = state->smb1.recv_iov;
2064 state->smb1.recv_iov = NULL;
2065 if (state->smb1.recv_cmd != SMBreadBraw) {
2066 hdr = (uint8_t *)recv_iov[0].iov_base;
2067 wct = recv_iov[1].iov_len/2;
2068 vwv = (uint16_t *)recv_iov[1].iov_base;
2069 vwv_offset = PTR_DIFF(vwv, hdr);
2070 num_bytes = recv_iov[2].iov_len;
2071 bytes = (uint8_t *)recv_iov[2].iov_base;
2072 bytes_offset = PTR_DIFF(bytes, hdr);
2076 if (tevent_req_is_nterror(req, &status)) {
2077 for (i=0; i < num_expected; i++) {
2078 if (NT_STATUS_EQUAL(status, expected[i].status)) {
2079 found_status = true;
2085 return NT_STATUS_UNEXPECTED_NETWORK_ERROR;
2091 if (num_expected == 0) {
2092 found_status = true;
2096 status = state->smb1.recv_status;
2098 for (i=0; i < num_expected; i++) {
2099 if (!NT_STATUS_EQUAL(status, expected[i].status)) {
2103 found_status = true;
2104 if (expected[i].wct == 0) {
2109 if (expected[i].wct == wct) {
2115 if (!found_status) {
2120 return NT_STATUS_INVALID_NETWORK_RESPONSE;
2124 *piov = talloc_move(mem_ctx, &recv_iov);
2136 if (pvwv_offset != NULL) {
2137 *pvwv_offset = vwv_offset;
2139 if (pnum_bytes != NULL) {
2140 *pnum_bytes = num_bytes;
2142 if (pbytes != NULL) {
2145 if (pbytes_offset != NULL) {
2146 *pbytes_offset = bytes_offset;
2148 if (pinbuf != NULL) {
2149 *pinbuf = state->inbuf;
2155 size_t smb1cli_req_wct_ofs(struct tevent_req **reqs, int num_reqs)
2162 for (i=0; i<num_reqs; i++) {
2163 struct smbXcli_req_state *state;
2164 state = tevent_req_data(reqs[i], struct smbXcli_req_state);
2165 wct_ofs += smbXcli_iov_len(state->smb1.iov+2,
2166 state->smb1.iov_count-2);
2167 wct_ofs = (wct_ofs + 3) & ~3;
2172 NTSTATUS smb1cli_req_chain_submit(struct tevent_req **reqs, int num_reqs)
2174 struct smbXcli_req_state *first_state =
2175 tevent_req_data(reqs[0],
2176 struct smbXcli_req_state);
2177 struct smbXcli_req_state *state;
2179 size_t chain_padding = 0;
2181 struct iovec *iov = NULL;
2182 struct iovec *this_iov;
2186 if (num_reqs == 1) {
2187 return smb1cli_req_writev_submit(reqs[0], first_state,
2188 first_state->smb1.iov,
2189 first_state->smb1.iov_count);
2193 for (i=0; i<num_reqs; i++) {
2194 if (!tevent_req_is_in_progress(reqs[i])) {
2195 return NT_STATUS_INTERNAL_ERROR;
2198 state = tevent_req_data(reqs[i], struct smbXcli_req_state);
2200 if (state->smb1.iov_count < 4) {
2201 return NT_STATUS_INVALID_PARAMETER_MIX;
2206 * The NBT and SMB header
2219 iovlen += state->smb1.iov_count - 2;
2222 iov = talloc_zero_array(first_state, struct iovec, iovlen);
2224 return NT_STATUS_NO_MEMORY;
2227 first_state->smb1.chained_requests = (struct tevent_req **)talloc_memdup(
2228 first_state, reqs, sizeof(*reqs) * num_reqs);
2229 if (first_state->smb1.chained_requests == NULL) {
2231 return NT_STATUS_NO_MEMORY;
2234 wct_offset = HDR_WCT;
2237 for (i=0; i<num_reqs; i++) {
2238 size_t next_padding = 0;
2241 state = tevent_req_data(reqs[i], struct smbXcli_req_state);
2243 if (i < num_reqs-1) {
2244 if (!smb1cli_is_andx_req(CVAL(state->smb1.hdr, HDR_COM))
2245 || CVAL(state->smb1.hdr, HDR_WCT) < 2) {
2247 TALLOC_FREE(first_state->smb1.chained_requests);
2248 return NT_STATUS_INVALID_PARAMETER_MIX;
2252 wct_offset += smbXcli_iov_len(state->smb1.iov+2,
2253 state->smb1.iov_count-2) + 1;
2254 if ((wct_offset % 4) != 0) {
2255 next_padding = 4 - (wct_offset % 4);
2257 wct_offset += next_padding;
2258 vwv = state->smb1.vwv;
2260 if (i < num_reqs-1) {
2261 struct smbXcli_req_state *next_state =
2262 tevent_req_data(reqs[i+1],
2263 struct smbXcli_req_state);
2264 SCVAL(vwv+0, 0, CVAL(next_state->smb1.hdr, HDR_COM));
2266 SSVAL(vwv+1, 0, wct_offset);
2267 } else if (smb1cli_is_andx_req(CVAL(state->smb1.hdr, HDR_COM))) {
2268 /* properly end the chain */
2269 SCVAL(vwv+0, 0, 0xff);
2270 SCVAL(vwv+0, 1, 0xff);
2276 * The NBT and SMB header
2278 this_iov[0] = state->smb1.iov[0];
2279 this_iov[1] = state->smb1.iov[1];
2283 * This one is a bit subtle. We have to add
2284 * chain_padding bytes between the requests, and we
2285 * have to also include the wct field of the
2286 * subsequent requests. We use the subsequent header
2287 * for the padding, it contains the wct field in its
2290 this_iov[0].iov_len = chain_padding+1;
2291 this_iov[0].iov_base = (void *)&state->smb1.hdr[
2292 sizeof(state->smb1.hdr) - this_iov[0].iov_len];
2293 memset(this_iov[0].iov_base, 0, this_iov[0].iov_len-1);
2298 * copy the words and bytes
2300 memcpy(this_iov, state->smb1.iov+2,
2301 sizeof(struct iovec) * (state->smb1.iov_count-2));
2302 this_iov += state->smb1.iov_count - 2;
2303 chain_padding = next_padding;
2306 nbt_len = smbXcli_iov_len(&iov[1], iovlen-1);
2307 if (nbt_len > first_state->conn->smb1.max_xmit) {
2309 TALLOC_FREE(first_state->smb1.chained_requests);
2310 return NT_STATUS_INVALID_PARAMETER_MIX;
2313 status = smb1cli_req_writev_submit(reqs[0], first_state, iov, iovlen);
2314 if (!NT_STATUS_IS_OK(status)) {
2316 TALLOC_FREE(first_state->smb1.chained_requests);
2320 return NT_STATUS_OK;
2323 bool smbXcli_conn_has_async_calls(struct smbXcli_conn *conn)
2325 return ((tevent_queue_length(conn->outgoing) != 0)
2326 || (talloc_array_length(conn->pending) != 0));
2329 uint32_t smb2cli_conn_server_capabilities(struct smbXcli_conn *conn)
2331 return conn->smb2.server.capabilities;
2334 uint16_t smb2cli_conn_server_security_mode(struct smbXcli_conn *conn)
2336 return conn->smb2.server.security_mode;
2339 uint32_t smb2cli_conn_max_trans_size(struct smbXcli_conn *conn)
2341 return conn->smb2.server.max_trans_size;
2344 uint32_t smb2cli_conn_max_read_size(struct smbXcli_conn *conn)
2346 return conn->smb2.server.max_read_size;
2349 uint32_t smb2cli_conn_max_write_size(struct smbXcli_conn *conn)
2351 return conn->smb2.server.max_write_size;
2354 void smb2cli_conn_set_max_credits(struct smbXcli_conn *conn,
2355 uint16_t max_credits)
2357 conn->smb2.max_credits = max_credits;
2360 static void smb2cli_req_cancel_done(struct tevent_req *subreq);
2362 static bool smb2cli_req_cancel(struct tevent_req *req)
2364 struct smbXcli_req_state *state =
2365 tevent_req_data(req,
2366 struct smbXcli_req_state);
2367 uint32_t flags = IVAL(state->smb2.hdr, SMB2_HDR_FLAGS);
2368 uint64_t mid = BVAL(state->smb2.hdr, SMB2_HDR_MESSAGE_ID);
2369 uint64_t aid = BVAL(state->smb2.hdr, SMB2_HDR_ASYNC_ID);
2370 struct smbXcli_tcon *tcon = state->tcon;
2371 struct smbXcli_session *session = state->session;
2372 uint8_t *fixed = state->smb2.pad;
2373 uint16_t fixed_len = 4;
2374 struct tevent_req *subreq;
2375 struct smbXcli_req_state *substate;
2378 SSVAL(fixed, 0, 0x04);
2381 subreq = smb2cli_req_create(state, state->ev,
2389 if (subreq == NULL) {
2392 substate = tevent_req_data(subreq, struct smbXcli_req_state);
2394 if (flags & SMB2_HDR_FLAG_ASYNC) {
2398 SIVAL(substate->smb2.hdr, SMB2_HDR_FLAGS, flags);
2399 SBVAL(substate->smb2.hdr, SMB2_HDR_MESSAGE_ID, mid);
2400 SBVAL(substate->smb2.hdr, SMB2_HDR_ASYNC_ID, aid);
2402 status = smb2cli_req_compound_submit(&subreq, 1);
2403 if (!NT_STATUS_IS_OK(status)) {
2404 TALLOC_FREE(subreq);
2408 tevent_req_set_callback(subreq, smb2cli_req_cancel_done, NULL);
2413 static void smb2cli_req_cancel_done(struct tevent_req *subreq)
2415 /* we do not care about the result */
2416 TALLOC_FREE(subreq);
2419 struct tevent_req *smb2cli_req_create(TALLOC_CTX *mem_ctx,
2420 struct tevent_context *ev,
2421 struct smbXcli_conn *conn,
2423 uint32_t additional_flags,
2424 uint32_t clear_flags,
2425 uint32_t timeout_msec,
2426 struct smbXcli_tcon *tcon,
2427 struct smbXcli_session *session,
2428 const uint8_t *fixed,
2433 struct tevent_req *req;
2434 struct smbXcli_req_state *state;
2439 req = tevent_req_create(mem_ctx, &state,
2440 struct smbXcli_req_state);
2447 state->session = session;
2451 uid = session->smb2.session_id;
2453 state->smb2.should_sign = session->smb2.should_sign;
2454 state->smb2.should_encrypt = session->smb2.should_encrypt;
2456 if (cmd == SMB2_OP_SESSSETUP &&
2457 session->smb2.signing_key.length != 0) {
2458 state->smb2.should_sign = true;
2461 if (cmd == SMB2_OP_SESSSETUP &&
2462 session->smb2.channel_signing_key.length == 0) {
2463 state->smb2.should_encrypt = false;
2468 tid = tcon->smb2.tcon_id;
2470 /* TODO: turn on encryption based on the tree connect. */
2473 if (state->smb2.should_encrypt) {
2474 state->smb2.should_sign = false;
2477 state->smb2.recv_iov = talloc_zero_array(state, struct iovec, 3);
2478 if (state->smb2.recv_iov == NULL) {
2483 flags |= additional_flags;
2484 flags &= ~clear_flags;
2486 state->smb2.fixed = fixed;
2487 state->smb2.fixed_len = fixed_len;
2488 state->smb2.dyn = dyn;
2489 state->smb2.dyn_len = dyn_len;
2491 if (state->smb2.should_encrypt) {
2492 SIVAL(state->smb2.transform, SMB2_TF_PROTOCOL_ID, SMB2_TF_MAGIC);
2493 SBVAL(state->smb2.transform, SMB2_TF_SESSION_ID, uid);
2496 SIVAL(state->smb2.hdr, SMB2_HDR_PROTOCOL_ID, SMB2_MAGIC);
2497 SSVAL(state->smb2.hdr, SMB2_HDR_LENGTH, SMB2_HDR_BODY);
2498 SSVAL(state->smb2.hdr, SMB2_HDR_OPCODE, cmd);
2499 SIVAL(state->smb2.hdr, SMB2_HDR_FLAGS, flags);
2500 SIVAL(state->smb2.hdr, SMB2_HDR_PID, 0); /* reserved */
2501 SIVAL(state->smb2.hdr, SMB2_HDR_TID, tid);
2502 SBVAL(state->smb2.hdr, SMB2_HDR_SESSION_ID, uid);
2505 case SMB2_OP_CANCEL:
2506 state->one_way = true;
2510 * If this is a dummy request, it will have
2511 * UINT64_MAX as message id.
2512 * If we send on break acknowledgement,
2513 * this gets overwritten later.
2515 SBVAL(state->smb2.hdr, SMB2_HDR_MESSAGE_ID, UINT64_MAX);
2519 if (timeout_msec > 0) {
2520 struct timeval endtime;
2522 endtime = timeval_current_ofs_msec(timeout_msec);
2523 if (!tevent_req_set_endtime(req, ev, endtime)) {
2531 void smb2cli_req_set_notify_async(struct tevent_req *req)
2533 struct smbXcli_req_state *state =
2534 tevent_req_data(req,
2535 struct smbXcli_req_state);
2537 state->smb2.notify_async = true;
2540 static void smb2cli_req_writev_done(struct tevent_req *subreq);
2541 static NTSTATUS smb2cli_conn_dispatch_incoming(struct smbXcli_conn *conn,
2542 TALLOC_CTX *tmp_mem,
2545 NTSTATUS smb2cli_req_compound_submit(struct tevent_req **reqs,
2548 struct smbXcli_req_state *state;
2549 struct tevent_req *subreq;
2551 int i, num_iov, nbt_len;
2554 * 1 for the nbt length
2555 * per request: TRANSFORM, HDR, fixed, dyn, padding
2556 * -1 because the last one does not need padding
2559 iov = talloc_array(reqs[0], struct iovec, 1 + 5*num_reqs - 1);
2561 return NT_STATUS_NO_MEMORY;
2567 for (i=0; i<num_reqs; i++) {
2577 const DATA_BLOB *signing_key = NULL;
2578 const DATA_BLOB *encryption_key = NULL;
2580 if (!tevent_req_is_in_progress(reqs[i])) {
2581 return NT_STATUS_INTERNAL_ERROR;
2584 state = tevent_req_data(reqs[i], struct smbXcli_req_state);
2586 if (!smbXcli_conn_is_connected(state->conn)) {
2587 return NT_STATUS_CONNECTION_DISCONNECTED;
2590 if ((state->conn->protocol != PROTOCOL_NONE) &&
2591 (state->conn->protocol < PROTOCOL_SMB2_02)) {
2592 return NT_STATUS_REVISION_MISMATCH;
2595 opcode = SVAL(state->smb2.hdr, SMB2_HDR_OPCODE);
2596 if (opcode == SMB2_OP_CANCEL) {
2600 avail = UINT64_MAX - state->conn->smb2.mid;
2602 return NT_STATUS_CONNECTION_ABORTED;
2605 if (state->conn->smb2.server.capabilities & SMB2_CAP_LARGE_MTU) {
2606 charge = (MAX(state->smb2.dyn_len, 1) - 1)/ 65536 + 1;
2611 charge = MAX(state->smb2.credit_charge, charge);
2613 avail = MIN(avail, state->conn->smb2.cur_credits);
2614 if (avail < charge) {
2615 return NT_STATUS_INTERNAL_ERROR;
2619 if (state->conn->smb2.max_credits > state->conn->smb2.cur_credits) {
2620 credits = state->conn->smb2.max_credits -
2621 state->conn->smb2.cur_credits;
2623 if (state->conn->smb2.max_credits >= state->conn->smb2.cur_credits) {
2627 mid = state->conn->smb2.mid;
2628 state->conn->smb2.mid += charge;
2629 state->conn->smb2.cur_credits -= charge;
2631 if (state->conn->smb2.server.capabilities & SMB2_CAP_LARGE_MTU) {
2632 SSVAL(state->smb2.hdr, SMB2_HDR_CREDIT_CHARGE, charge);
2634 SSVAL(state->smb2.hdr, SMB2_HDR_CREDIT, credits);
2635 SBVAL(state->smb2.hdr, SMB2_HDR_MESSAGE_ID, mid);
2638 if (state->session) {
2640 * We prefer the channel signing key if it is
2643 if (state->smb2.should_sign) {
2644 signing_key = &state->session->smb2.channel_signing_key;
2648 * If it is a channel binding, we already have the main
2649 * signing key and try that one.
2651 if (signing_key && signing_key->length == 0) {
2652 signing_key = &state->session->smb2.signing_key;
2656 * If we do not have any session key yet, we skip the
2657 * signing of SMB2_OP_SESSSETUP requests.
2659 if (signing_key && signing_key->length == 0) {
2663 if (state->smb2.should_encrypt) {
2664 encryption_key = &state->session->smb2.encryption_key;
2668 if (encryption_key) {
2670 iov[num_iov].iov_base = state->smb2.transform;
2671 iov[num_iov].iov_len = sizeof(state->smb2.transform);
2676 iov[num_iov].iov_base = state->smb2.hdr;
2677 iov[num_iov].iov_len = sizeof(state->smb2.hdr);
2680 iov[num_iov].iov_base = discard_const(state->smb2.fixed);
2681 iov[num_iov].iov_len = state->smb2.fixed_len;
2684 if (state->smb2.dyn != NULL) {
2685 iov[num_iov].iov_base = discard_const(state->smb2.dyn);
2686 iov[num_iov].iov_len = state->smb2.dyn_len;
2690 reqlen = sizeof(state->smb2.hdr);
2691 reqlen += state->smb2.fixed_len;
2692 reqlen += state->smb2.dyn_len;
2694 if (i < num_reqs-1) {
2695 if ((reqlen % 8) > 0) {
2696 uint8_t pad = 8 - (reqlen % 8);
2697 iov[num_iov].iov_base = state->smb2.pad;
2698 iov[num_iov].iov_len = pad;
2702 SIVAL(state->smb2.hdr, SMB2_HDR_NEXT_COMMAND, reqlen);
2705 if (encryption_key) {
2710 SBVAL(state->smb2.transform, SMB2_TF_NONCE, mid);
2711 SBVAL(state->smb2.transform, SMB2_TF_NONCE+8,
2712 state->session->smb2.channel_nonce);
2713 SBVAL(state->smb2.transform, SMB2_TF_MSG_SIZE,
2716 buf = talloc_array(iov, uint8_t, reqlen);
2718 return NT_STATUS_NO_MEMORY;
2721 reqlen += SMB2_TF_HDR_SIZE;
2724 * We copy the buffers before encrypting them,
2725 * this is at least currently needed for the
2726 * to keep state->smb2.hdr.
2728 * Also the callers may expect there buffers
2731 for (vi = hdr_iov; vi < num_iov; vi++) {
2732 struct iovec *v = &iov[vi];
2733 const uint8_t *o = (const uint8_t *)v->iov_base;
2735 memcpy(buf, o, v->iov_len);
2736 v->iov_base = (void *)buf;
2740 status = smb2_signing_encrypt_pdu(*encryption_key,
2741 state->session->conn->protocol,
2742 &iov[tf_iov], num_iov - tf_iov);
2743 if (!NT_STATUS_IS_OK(status)) {
2746 } else if (signing_key) {
2749 status = smb2_signing_sign_pdu(*signing_key,
2750 state->session->conn->protocol,
2751 &iov[hdr_iov], num_iov - hdr_iov);
2752 if (!NT_STATUS_IS_OK(status)) {
2759 ret = smbXcli_req_set_pending(reqs[i]);
2761 return NT_STATUS_NO_MEMORY;
2765 state = tevent_req_data(reqs[0], struct smbXcli_req_state);
2766 _smb_setlen_tcp(state->length_hdr, nbt_len);
2767 iov[0].iov_base = state->length_hdr;
2768 iov[0].iov_len = sizeof(state->length_hdr);
2770 if (state->conn->dispatch_incoming == NULL) {
2771 state->conn->dispatch_incoming = smb2cli_conn_dispatch_incoming;
2774 subreq = writev_send(state, state->ev, state->conn->outgoing,
2775 state->conn->write_fd, false, iov, num_iov);
2776 if (subreq == NULL) {
2777 return NT_STATUS_NO_MEMORY;
2779 tevent_req_set_callback(subreq, smb2cli_req_writev_done, reqs[0]);
2780 return NT_STATUS_OK;
2783 void smb2cli_req_set_credit_charge(struct tevent_req *req, uint16_t charge)
2785 struct smbXcli_req_state *state =
2786 tevent_req_data(req,
2787 struct smbXcli_req_state);
2789 state->smb2.credit_charge = charge;
2792 struct tevent_req *smb2cli_req_send(TALLOC_CTX *mem_ctx,
2793 struct tevent_context *ev,
2794 struct smbXcli_conn *conn,
2796 uint32_t additional_flags,
2797 uint32_t clear_flags,
2798 uint32_t timeout_msec,
2799 struct smbXcli_tcon *tcon,
2800 struct smbXcli_session *session,
2801 const uint8_t *fixed,
2806 struct tevent_req *req;
2809 req = smb2cli_req_create(mem_ctx, ev, conn, cmd,
2810 additional_flags, clear_flags,
2813 fixed, fixed_len, dyn, dyn_len);
2817 if (!tevent_req_is_in_progress(req)) {
2818 return tevent_req_post(req, ev);
2820 status = smb2cli_req_compound_submit(&req, 1);
2821 if (tevent_req_nterror(req, status)) {
2822 return tevent_req_post(req, ev);
2827 static void smb2cli_req_writev_done(struct tevent_req *subreq)
2829 struct tevent_req *req =
2830 tevent_req_callback_data(subreq,
2832 struct smbXcli_req_state *state =
2833 tevent_req_data(req,
2834 struct smbXcli_req_state);
2838 nwritten = writev_recv(subreq, &err);
2839 TALLOC_FREE(subreq);
2840 if (nwritten == -1) {
2841 /* here, we need to notify all pending requests */
2842 NTSTATUS status = map_nt_error_from_unix_common(err);
2843 smbXcli_conn_disconnect(state->conn, status);
2848 static NTSTATUS smb2cli_inbuf_parse_compound(struct smbXcli_conn *conn,
2851 TALLOC_CTX *mem_ctx,
2852 struct iovec **piov, int *pnum_iov)
2857 uint8_t *first_hdr = buf;
2859 iov = talloc_array(mem_ctx, struct iovec, num_iov);
2861 return NT_STATUS_NO_MEMORY;
2864 while (taken < buflen) {
2867 size_t len = buflen - taken;
2868 uint8_t *hdr = first_hdr + taken;
2871 size_t next_command_ofs;
2873 struct iovec *iov_tmp;
2876 DEBUG(10, ("%d bytes left, expected at least %d\n",
2880 if (IVAL(hdr, 0) == SMB2_TF_MAGIC) {
2881 struct smbXcli_session *s;
2883 struct iovec tf_iov[2];
2886 if (len < SMB2_TF_HDR_SIZE) {
2887 DEBUG(10, ("%d bytes left, expected at least %d\n",
2888 (int)len, SMB2_TF_HDR_SIZE));
2892 tf_len = SMB2_TF_HDR_SIZE;
2895 hdr = first_hdr + taken;
2896 len = IVAL(tf, SMB2_TF_MSG_SIZE);
2897 uid = BVAL(tf, SMB2_TF_SESSION_ID);
2900 for (; s; s = s->next) {
2901 if (s->smb2.session_id != uid) {
2908 DEBUG(10, ("unknown session_id %llu\n",
2909 (unsigned long long)uid));
2913 tf_iov[0].iov_base = (void *)tf;
2914 tf_iov[0].iov_len = tf_len;
2915 tf_iov[1].iov_base = (void *)hdr;
2916 tf_iov[1].iov_len = len;
2918 status = smb2_signing_decrypt_pdu(s->smb2.decryption_key,
2921 if (!NT_STATUS_IS_OK(status)) {
2928 * We need the header plus the body length field
2931 if (len < SMB2_HDR_BODY + 2) {
2932 DEBUG(10, ("%d bytes left, expected at least %d\n",
2933 (int)len, SMB2_HDR_BODY));
2936 if (IVAL(hdr, 0) != SMB2_MAGIC) {
2937 DEBUG(10, ("Got non-SMB2 PDU: %x\n",
2941 if (SVAL(hdr, 4) != SMB2_HDR_BODY) {
2942 DEBUG(10, ("Got HDR len %d, expected %d\n",
2943 SVAL(hdr, 4), SMB2_HDR_BODY));
2948 next_command_ofs = IVAL(hdr, SMB2_HDR_NEXT_COMMAND);
2949 body_size = SVAL(hdr, SMB2_HDR_BODY);
2951 if (next_command_ofs != 0) {
2952 if (next_command_ofs < (SMB2_HDR_BODY + 2)) {
2955 if (next_command_ofs > full_size) {
2958 if (tf && next_command_ofs < len) {
2961 full_size = next_command_ofs;
2963 if (body_size < 2) {
2966 body_size &= 0xfffe;
2968 if (body_size > (full_size - SMB2_HDR_BODY)) {
2972 iov_tmp = talloc_realloc(mem_ctx, iov, struct iovec,
2974 if (iov_tmp == NULL) {
2976 return NT_STATUS_NO_MEMORY;
2979 cur = &iov[num_iov];
2982 cur[0].iov_base = tf;
2983 cur[0].iov_len = tf_len;
2984 cur[1].iov_base = hdr;
2985 cur[1].iov_len = SMB2_HDR_BODY;
2986 cur[2].iov_base = hdr + SMB2_HDR_BODY;
2987 cur[2].iov_len = body_size;
2988 cur[3].iov_base = hdr + SMB2_HDR_BODY + body_size;
2989 cur[3].iov_len = full_size - (SMB2_HDR_BODY + body_size);
2995 *pnum_iov = num_iov;
2996 return NT_STATUS_OK;
3000 return NT_STATUS_INVALID_NETWORK_RESPONSE;
3003 static struct tevent_req *smb2cli_conn_find_pending(struct smbXcli_conn *conn,
3006 size_t num_pending = talloc_array_length(conn->pending);
3009 for (i=0; i<num_pending; i++) {
3010 struct tevent_req *req = conn->pending[i];
3011 struct smbXcli_req_state *state =
3012 tevent_req_data(req,
3013 struct smbXcli_req_state);
3015 if (mid == BVAL(state->smb2.hdr, SMB2_HDR_MESSAGE_ID)) {
3022 static NTSTATUS smb2cli_conn_dispatch_incoming(struct smbXcli_conn *conn,
3023 TALLOC_CTX *tmp_mem,
3026 struct tevent_req *req;
3027 struct smbXcli_req_state *state = NULL;
3032 struct smbXcli_session *last_session = NULL;
3033 size_t inbuf_len = smb_len_tcp(inbuf);
3035 status = smb2cli_inbuf_parse_compound(conn,
3036 inbuf + NBT_HDR_SIZE,
3040 if (!NT_STATUS_IS_OK(status)) {
3044 for (i=0; i<num_iov; i+=4) {
3045 uint8_t *inbuf_ref = NULL;
3046 struct iovec *cur = &iov[i];
3047 uint8_t *inhdr = (uint8_t *)cur[1].iov_base;
3048 uint16_t opcode = SVAL(inhdr, SMB2_HDR_OPCODE);
3049 uint32_t flags = IVAL(inhdr, SMB2_HDR_FLAGS);
3050 uint64_t mid = BVAL(inhdr, SMB2_HDR_MESSAGE_ID);
3051 uint16_t req_opcode;
3053 uint16_t credits = SVAL(inhdr, SMB2_HDR_CREDIT);
3054 uint32_t new_credits;
3055 struct smbXcli_session *session = NULL;
3056 const DATA_BLOB *signing_key = NULL;
3058 new_credits = conn->smb2.cur_credits;
3059 new_credits += credits;
3060 if (new_credits > UINT16_MAX) {
3061 return NT_STATUS_INVALID_NETWORK_RESPONSE;
3063 conn->smb2.cur_credits += credits;
3065 req = smb2cli_conn_find_pending(conn, mid);
3067 return NT_STATUS_INVALID_NETWORK_RESPONSE;
3069 state = tevent_req_data(req, struct smbXcli_req_state);
3071 state->smb2.got_async = false;
3073 req_opcode = SVAL(state->smb2.hdr, SMB2_HDR_OPCODE);
3074 if (opcode != req_opcode) {
3075 return NT_STATUS_INVALID_NETWORK_RESPONSE;
3077 req_flags = SVAL(state->smb2.hdr, SMB2_HDR_FLAGS);
3079 if (!(flags & SMB2_HDR_FLAG_REDIRECT)) {
3080 return NT_STATUS_INVALID_NETWORK_RESPONSE;
3083 status = NT_STATUS(IVAL(inhdr, SMB2_HDR_STATUS));
3084 if ((flags & SMB2_HDR_FLAG_ASYNC) &&
3085 NT_STATUS_EQUAL(status, STATUS_PENDING)) {
3086 uint64_t async_id = BVAL(inhdr, SMB2_HDR_ASYNC_ID);
3089 * async interim responses are not signed,
3090 * even if the SMB2_HDR_FLAG_SIGNED flag
3093 req_flags |= SMB2_HDR_FLAG_ASYNC;
3094 SBVAL(state->smb2.hdr, SMB2_HDR_FLAGS, req_flags);
3095 SBVAL(state->smb2.hdr, SMB2_HDR_ASYNC_ID, async_id);
3097 if (state->smb2.notify_async) {
3098 state->smb2.got_async = true;
3099 tevent_req_defer_callback(req, state->ev);
3100 tevent_req_notify_callback(req);
3105 session = state->session;
3106 if (req_flags & SMB2_HDR_FLAG_CHAINED) {
3107 session = last_session;
3109 last_session = session;
3111 if (state->smb2.should_sign) {
3112 if (!(flags & SMB2_HDR_FLAG_SIGNED)) {
3113 return NT_STATUS_ACCESS_DENIED;
3117 if (flags & SMB2_HDR_FLAG_SIGNED) {
3118 uint64_t uid = BVAL(inhdr, SMB2_HDR_SESSION_ID);
3120 if (session == NULL) {
3121 struct smbXcli_session *s;
3123 s = state->conn->sessions;
3124 for (; s; s = s->next) {
3125 if (s->smb2.session_id != uid) {
3134 if (session == NULL) {
3135 return NT_STATUS_INVALID_NETWORK_RESPONSE;
3138 last_session = session;
3139 signing_key = &session->smb2.channel_signing_key;
3142 if (opcode == SMB2_OP_SESSSETUP) {
3144 * We prefer the channel signing key, if it is
3147 * If we do not have a channel signing key yet,
3148 * we try the main signing key, if it is not
3149 * the final response.
3151 if (signing_key && signing_key->length == 0 &&
3152 !NT_STATUS_IS_OK(status)) {
3153 signing_key = &session->smb2.signing_key;
3156 if (signing_key && signing_key->length == 0) {
3158 * If we do not have a session key to
3159 * verify the signature, we defer the
3160 * signing check to the caller.
3162 * The caller gets NT_STATUS_OK, it
3164 * smb2cli_session_set_session_key()
3166 * smb2cli_session_set_channel_key()
3167 * which will check the signature
3168 * with the channel signing key.
3174 if (NT_STATUS_EQUAL(status, NT_STATUS_USER_SESSION_DELETED)) {
3176 * if the server returns NT_STATUS_USER_SESSION_DELETED
3177 * the response is not signed and we should
3178 * propagate the NT_STATUS_USER_SESSION_DELETED
3179 * status to the caller.
3182 } else if (state->smb2.should_encrypt) {
3183 if (cur[0].iov_len != SMB2_TF_HDR_SIZE) {
3184 return NT_STATUS_ACCESS_DENIED;
3188 if (NT_STATUS_EQUAL(status, NT_STATUS_NETWORK_NAME_DELETED) ||
3189 NT_STATUS_EQUAL(status, NT_STATUS_FILE_CLOSED) ||
3190 NT_STATUS_EQUAL(status, NT_STATUS_INVALID_PARAMETER)) {
3192 * if the server returns
3193 * NT_STATUS_NETWORK_NAME_DELETED
3194 * NT_STATUS_FILE_CLOSED
3195 * NT_STATUS_INVALID_PARAMETER
3196 * the response might not be signed
3197 * as this happens before the signing checks.
3199 * If server echos the signature (or all zeros)
3200 * we should report the status from the server
3206 cmp = memcmp(inhdr+SMB2_HDR_SIGNATURE,
3207 state->smb2.hdr+SMB2_HDR_SIGNATURE,
3210 state->smb2.signing_skipped = true;
3216 static const uint8_t zeros[16];
3218 cmp = memcmp(inhdr+SMB2_HDR_SIGNATURE,
3222 state->smb2.signing_skipped = true;
3229 status = smb2_signing_check_pdu(*signing_key,
3230 state->conn->protocol,
3232 if (!NT_STATUS_IS_OK(status)) {
3234 * If the signing check fails, we disconnect
3241 smbXcli_req_unset_pending(req);
3244 * There might be more than one response
3245 * we need to defer the notifications
3247 if ((num_iov == 5) && (talloc_array_length(conn->pending) == 0)) {
3252 tevent_req_defer_callback(req, state->ev);
3256 * Note: here we use talloc_reference() in a way
3257 * that does not expose it to the caller.
3259 inbuf_ref = talloc_reference(state->smb2.recv_iov, inbuf);
3260 if (tevent_req_nomem(inbuf_ref, req)) {
3264 /* copy the related buffers */
3265 state->smb2.recv_iov[0] = cur[1];
3266 state->smb2.recv_iov[1] = cur[2];
3267 state->smb2.recv_iov[2] = cur[3];
3269 tevent_req_done(req);
3273 return NT_STATUS_RETRY;
3276 return NT_STATUS_OK;
3279 NTSTATUS smb2cli_req_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
3280 struct iovec **piov,
3281 const struct smb2cli_req_expected_response *expected,
3282 size_t num_expected)
3284 struct smbXcli_req_state *state =
3285 tevent_req_data(req,
3286 struct smbXcli_req_state);
3289 bool found_status = false;
3290 bool found_size = false;
3297 if (state->smb2.got_async) {
3298 return STATUS_PENDING;
3301 if (tevent_req_is_nterror(req, &status)) {
3302 for (i=0; i < num_expected; i++) {
3303 if (NT_STATUS_EQUAL(status, expected[i].status)) {
3304 found_status = true;
3310 return NT_STATUS_UNEXPECTED_NETWORK_ERROR;
3316 if (num_expected == 0) {
3317 found_status = true;
3321 status = NT_STATUS(IVAL(state->smb2.recv_iov[0].iov_base, SMB2_HDR_STATUS));
3322 body_size = SVAL(state->smb2.recv_iov[1].iov_base, 0);
3324 for (i=0; i < num_expected; i++) {
3325 if (!NT_STATUS_EQUAL(status, expected[i].status)) {
3329 found_status = true;
3330 if (expected[i].body_size == 0) {
3335 if (expected[i].body_size == body_size) {
3341 if (!found_status) {
3345 if (state->smb2.signing_skipped) {
3346 if (num_expected > 0) {
3347 return NT_STATUS_ACCESS_DENIED;
3349 if (!NT_STATUS_IS_ERR(status)) {
3350 return NT_STATUS_ACCESS_DENIED;
3355 return NT_STATUS_INVALID_NETWORK_RESPONSE;
3359 *piov = talloc_move(mem_ctx, &state->smb2.recv_iov);
3365 static const struct {
3366 enum protocol_types proto;
3367 const char *smb1_name;
3368 } smb1cli_prots[] = {
3369 {PROTOCOL_CORE, "PC NETWORK PROGRAM 1.0"},
3370 {PROTOCOL_COREPLUS, "MICROSOFT NETWORKS 1.03"},
3371 {PROTOCOL_LANMAN1, "MICROSOFT NETWORKS 3.0"},
3372 {PROTOCOL_LANMAN1, "LANMAN1.0"},
3373 {PROTOCOL_LANMAN2, "LM1.2X002"},
3374 {PROTOCOL_LANMAN2, "DOS LANMAN2.1"},
3375 {PROTOCOL_LANMAN2, "LANMAN2.1"},
3376 {PROTOCOL_LANMAN2, "Samba"},
3377 {PROTOCOL_NT1, "NT LANMAN 1.0"},
3378 {PROTOCOL_NT1, "NT LM 0.12"},
3379 {PROTOCOL_SMB2_02, "SMB 2.002"},
3380 {PROTOCOL_SMB2_10, "SMB 2.???"},
3383 static const struct {
3384 enum protocol_types proto;
3385 uint16_t smb2_dialect;
3386 } smb2cli_prots[] = {
3387 {PROTOCOL_SMB2_02, SMB2_DIALECT_REVISION_202},
3388 {PROTOCOL_SMB2_10, SMB2_DIALECT_REVISION_210},
3389 {PROTOCOL_SMB2_22, SMB2_DIALECT_REVISION_222},
3390 {PROTOCOL_SMB2_24, SMB2_DIALECT_REVISION_224},
3391 {PROTOCOL_SMB3_00, SMB3_DIALECT_REVISION_300},
3394 struct smbXcli_negprot_state {
3395 struct smbXcli_conn *conn;
3396 struct tevent_context *ev;
3397 uint32_t timeout_msec;
3398 enum protocol_types min_protocol;
3399 enum protocol_types max_protocol;
3403 uint8_t dyn[ARRAY_SIZE(smb2cli_prots)*2];
3407 static void smbXcli_negprot_invalid_done(struct tevent_req *subreq);
3408 static struct tevent_req *smbXcli_negprot_smb1_subreq(struct smbXcli_negprot_state *state);
3409 static void smbXcli_negprot_smb1_done(struct tevent_req *subreq);
3410 static struct tevent_req *smbXcli_negprot_smb2_subreq(struct smbXcli_negprot_state *state);
3411 static void smbXcli_negprot_smb2_done(struct tevent_req *subreq);
3412 static NTSTATUS smbXcli_negprot_dispatch_incoming(struct smbXcli_conn *conn,
3416 struct tevent_req *smbXcli_negprot_send(TALLOC_CTX *mem_ctx,
3417 struct tevent_context *ev,
3418 struct smbXcli_conn *conn,
3419 uint32_t timeout_msec,
3420 enum protocol_types min_protocol,
3421 enum protocol_types max_protocol)
3423 struct tevent_req *req, *subreq;
3424 struct smbXcli_negprot_state *state;
3426 req = tevent_req_create(mem_ctx, &state,
3427 struct smbXcli_negprot_state);
3433 state->timeout_msec = timeout_msec;
3434 state->min_protocol = min_protocol;
3435 state->max_protocol = max_protocol;
3437 if (min_protocol == PROTOCOL_NONE) {
3438 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER_MIX);
3439 return tevent_req_post(req, ev);
3442 if (max_protocol == PROTOCOL_NONE) {
3443 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER_MIX);
3444 return tevent_req_post(req, ev);
3447 if (min_protocol > max_protocol) {
3448 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER_MIX);
3449 return tevent_req_post(req, ev);
3452 if ((min_protocol < PROTOCOL_SMB2_02) &&
3453 (max_protocol < PROTOCOL_SMB2_02)) {
3457 conn->dispatch_incoming = smb1cli_conn_dispatch_incoming;
3459 subreq = smbXcli_negprot_smb1_subreq(state);
3460 if (tevent_req_nomem(subreq, req)) {
3461 return tevent_req_post(req, ev);
3463 tevent_req_set_callback(subreq, smbXcli_negprot_smb1_done, req);
3467 if ((min_protocol >= PROTOCOL_SMB2_02) &&
3468 (max_protocol >= PROTOCOL_SMB2_02)) {
3472 conn->dispatch_incoming = smb2cli_conn_dispatch_incoming;
3474 subreq = smbXcli_negprot_smb2_subreq(state);
3475 if (tevent_req_nomem(subreq, req)) {
3476 return tevent_req_post(req, ev);
3478 tevent_req_set_callback(subreq, smbXcli_negprot_smb2_done, req);
3483 * We send an SMB1 negprot with the SMB2 dialects
3484 * and expect a SMB1 or a SMB2 response.
3486 * smbXcli_negprot_dispatch_incoming() will fix the
3487 * callback to match protocol of the response.
3489 conn->dispatch_incoming = smbXcli_negprot_dispatch_incoming;
3491 subreq = smbXcli_negprot_smb1_subreq(state);
3492 if (tevent_req_nomem(subreq, req)) {
3493 return tevent_req_post(req, ev);
3495 tevent_req_set_callback(subreq, smbXcli_negprot_invalid_done, req);
3499 static void smbXcli_negprot_invalid_done(struct tevent_req *subreq)
3501 struct tevent_req *req =
3502 tevent_req_callback_data(subreq,
3507 * we just want the low level error
3509 status = tevent_req_simple_recv_ntstatus(subreq);
3510 TALLOC_FREE(subreq);
3511 if (tevent_req_nterror(req, status)) {
3515 /* this should never happen */
3516 tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR);
3519 static struct tevent_req *smbXcli_negprot_smb1_subreq(struct smbXcli_negprot_state *state)
3522 DATA_BLOB bytes = data_blob_null;
3526 /* setup the protocol strings */
3527 for (i=0; i < ARRAY_SIZE(smb1cli_prots); i++) {
3531 if (smb1cli_prots[i].proto < state->min_protocol) {
3535 if (smb1cli_prots[i].proto > state->max_protocol) {
3539 ok = data_blob_append(state, &bytes, &c, sizeof(c));
3545 * We now it is already ascii and
3546 * we want NULL termination.
3548 ok = data_blob_append(state, &bytes,
3549 smb1cli_prots[i].smb1_name,
3550 strlen(smb1cli_prots[i].smb1_name)+1);
3556 smb1cli_req_flags(state->max_protocol,
3557 state->conn->smb1.client.capabilities,
3562 return smb1cli_req_send(state, state->ev, state->conn,
3566 state->timeout_msec,
3567 0xFFFE, 0, NULL, /* pid, tid, session */
3568 0, NULL, /* wct, vwv */
3569 bytes.length, bytes.data);
3572 static void smbXcli_negprot_smb1_done(struct tevent_req *subreq)
3574 struct tevent_req *req =
3575 tevent_req_callback_data(subreq,
3577 struct smbXcli_negprot_state *state =
3578 tevent_req_data(req,
3579 struct smbXcli_negprot_state);
3580 struct smbXcli_conn *conn = state->conn;
3581 struct iovec *recv_iov = NULL;
3590 size_t num_prots = 0;
3592 uint32_t client_capabilities = conn->smb1.client.capabilities;
3593 uint32_t both_capabilities;
3594 uint32_t server_capabilities = 0;
3595 uint32_t capabilities;
3596 uint32_t client_max_xmit = conn->smb1.client.max_xmit;
3597 uint32_t server_max_xmit = 0;
3599 uint32_t server_max_mux = 0;
3600 uint16_t server_security_mode = 0;
3601 uint32_t server_session_key = 0;
3602 bool server_readbraw = false;
3603 bool server_writebraw = false;
3604 bool server_lockread = false;
3605 bool server_writeunlock = false;
3606 struct GUID server_guid = GUID_zero();
3607 DATA_BLOB server_gss_blob = data_blob_null;
3608 uint8_t server_challenge[8];
3609 char *server_workgroup = NULL;
3610 char *server_name = NULL;
3611 int server_time_zone = 0;
3612 NTTIME server_system_time = 0;
3613 static const struct smb1cli_req_expected_response expected[] = {
3615 .status = NT_STATUS_OK,
3616 .wct = 0x11, /* NT1 */
3619 .status = NT_STATUS_OK,
3620 .wct = 0x0D, /* LM */
3623 .status = NT_STATUS_OK,
3624 .wct = 0x01, /* CORE */
3628 ZERO_STRUCT(server_challenge);
3630 status = smb1cli_req_recv(subreq, state,
3635 NULL, /* pvwv_offset */
3638 NULL, /* pbytes_offset */
3640 expected, ARRAY_SIZE(expected));
3641 TALLOC_FREE(subreq);
3642 if (tevent_req_nterror(req, status)) {
3646 flags = CVAL(inhdr, HDR_FLG);
3648 protnum = SVAL(vwv, 0);
3650 for (i=0; i < ARRAY_SIZE(smb1cli_prots); i++) {
3651 if (smb1cli_prots[i].proto < state->min_protocol) {
3655 if (smb1cli_prots[i].proto > state->max_protocol) {
3659 if (protnum != num_prots) {
3664 conn->protocol = smb1cli_prots[i].proto;
3668 if (conn->protocol == PROTOCOL_NONE) {
3669 tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
3673 if ((conn->protocol < PROTOCOL_NT1) && conn->mandatory_signing) {
3674 DEBUG(0,("smbXcli_negprot: SMB signing is mandatory "
3675 "and the selected protocol level doesn't support it.\n"));
3676 tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED);
3680 if (flags & FLAG_SUPPORT_LOCKREAD) {
3681 server_lockread = true;
3682 server_writeunlock = true;
3685 if (conn->protocol >= PROTOCOL_NT1) {
3686 const char *client_signing = NULL;
3687 bool server_mandatory = false;
3688 bool server_allowed = false;
3689 const char *server_signing = NULL;
3694 tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
3699 server_security_mode = CVAL(vwv + 1, 0);
3700 server_max_mux = SVAL(vwv + 1, 1);
3701 server_max_xmit = IVAL(vwv + 3, 1);
3702 server_session_key = IVAL(vwv + 7, 1);
3703 server_time_zone = SVALS(vwv + 15, 1);
3704 server_time_zone *= 60;
3705 /* this time arrives in real GMT */
3706 server_system_time = BVAL(vwv + 11, 1);
3707 server_capabilities = IVAL(vwv + 9, 1);
3709 key_len = CVAL(vwv + 16, 1);
3711 if (server_capabilities & CAP_RAW_MODE) {
3712 server_readbraw = true;
3713 server_writebraw = true;
3715 if (server_capabilities & CAP_LOCK_AND_READ) {
3716 server_lockread = true;
3719 if (server_capabilities & CAP_EXTENDED_SECURITY) {
3720 DATA_BLOB blob1, blob2;
3722 if (num_bytes < 16) {
3723 tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
3727 blob1 = data_blob_const(bytes, 16);
3728 status = GUID_from_data_blob(&blob1, &server_guid);
3729 if (tevent_req_nterror(req, status)) {
3733 blob1 = data_blob_const(bytes+16, num_bytes-16);
3734 blob2 = data_blob_dup_talloc(state, blob1);
3735 if (blob1.length > 0 &&
3736 tevent_req_nomem(blob2.data, req)) {
3739 server_gss_blob = blob2;
3741 DATA_BLOB blob1, blob2;
3743 if (num_bytes < key_len) {
3744 tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
3748 if (key_len != 0 && key_len != 8) {
3749 tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
3754 memcpy(server_challenge, bytes, 8);
3757 blob1 = data_blob_const(bytes+key_len, num_bytes-key_len);
3758 blob2 = data_blob_const(bytes+key_len, num_bytes-key_len);
3759 if (blob1.length > 0) {
3762 len = utf16_len_n(blob1.data,
3766 ok = convert_string_talloc(state,
3774 status = map_nt_error_from_unix_common(errno);
3775 tevent_req_nterror(req, status);
3780 blob2.data += blob1.length;
3781 blob2.length -= blob1.length;
3782 if (blob2.length > 0) {
3785 len = utf16_len_n(blob1.data,
3789 ok = convert_string_talloc(state,
3797 status = map_nt_error_from_unix_common(errno);
3798 tevent_req_nterror(req, status);
3804 client_signing = "disabled";
3805 if (conn->allow_signing) {
3806 client_signing = "allowed";
3808 if (conn->mandatory_signing) {
3809 client_signing = "required";
3812 server_signing = "not supported";
3813 if (server_security_mode & NEGOTIATE_SECURITY_SIGNATURES_ENABLED) {
3814 server_signing = "supported";
3815 server_allowed = true;
3817 if (server_security_mode & NEGOTIATE_SECURITY_SIGNATURES_REQUIRED) {
3818 server_signing = "required";
3819 server_mandatory = true;
3822 ok = smb_signing_set_negotiated(conn->smb1.signing,
3826 DEBUG(1,("cli_negprot: SMB signing is required, "
3827 "but client[%s] and server[%s] mismatch\n",
3828 client_signing, server_signing));
3829 tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED);
3833 } else if (conn->protocol >= PROTOCOL_LANMAN1) {
3839 tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
3843 server_security_mode = SVAL(vwv + 1, 0);
3844 server_max_xmit = SVAL(vwv + 2, 0);
3845 server_max_mux = SVAL(vwv + 3, 0);
3846 server_readbraw = ((SVAL(vwv + 5, 0) & 0x1) != 0);
3847 server_writebraw = ((SVAL(vwv + 5, 0) & 0x2) != 0);
3848 server_session_key = IVAL(vwv + 6, 0);
3849 server_time_zone = SVALS(vwv + 10, 0);
3850 server_time_zone *= 60;
3851 /* this time is converted to GMT by make_unix_date */
3852 t = pull_dos_date((const uint8_t *)(vwv + 8), server_time_zone);
3853 unix_to_nt_time(&server_system_time, t);
3854 key_len = SVAL(vwv + 11, 0);
3856 if (num_bytes < key_len) {
3857 tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
3861 if (key_len != 0 && key_len != 8) {
3862 tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
3867 memcpy(server_challenge, bytes, 8);
3870 blob1 = data_blob_const(bytes+key_len, num_bytes-key_len);
3871 if (blob1.length > 0) {
3875 len = utf16_len_n(blob1.data,
3879 ok = convert_string_talloc(state,
3887 status = map_nt_error_from_unix_common(errno);
3888 tevent_req_nterror(req, status);
3894 /* the old core protocol */
3895 server_time_zone = get_time_zone(time(NULL));
3896 server_max_xmit = 1024;
3900 if (server_max_xmit < 1024) {
3901 tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
3905 if (server_max_mux < 1) {
3906 tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
3911 * Now calculate the negotiated capabilities
3912 * based on the mask for:
3913 * - client only flags
3914 * - flags used in both directions
3915 * - server only flags
3917 both_capabilities = client_capabilities & server_capabilities;
3918 capabilities = client_capabilities & SMB_CAP_CLIENT_MASK;
3919 capabilities |= both_capabilities & SMB_CAP_BOTH_MASK;
3920 capabilities |= server_capabilities & SMB_CAP_SERVER_MASK;
3922 max_xmit = MIN(client_max_xmit, server_max_xmit);
3924 conn->smb1.server.capabilities = server_capabilities;
3925 conn->smb1.capabilities = capabilities;
3927 conn->smb1.server.max_xmit = server_max_xmit;
3928 conn->smb1.max_xmit = max_xmit;
3930 conn->smb1.server.max_mux = server_max_mux;
3932 conn->smb1.server.security_mode = server_security_mode;
3934 conn->smb1.server.readbraw = server_readbraw;
3935 conn->smb1.server.writebraw = server_writebraw;
3936 conn->smb1.server.lockread = server_lockread;
3937 conn->smb1.server.writeunlock = server_writeunlock;
3939 conn->smb1.server.session_key = server_session_key;
3941 talloc_steal(conn, server_gss_blob.data);
3942 conn->smb1.server.gss_blob = server_gss_blob;
3943 conn->smb1.server.guid = server_guid;
3944 memcpy(conn->smb1.server.challenge, server_challenge, 8);
3945 conn->smb1.server.workgroup = talloc_move(conn, &server_workgroup);
3946 conn->smb1.server.name = talloc_move(conn, &server_name);
3948 conn->smb1.server.time_zone = server_time_zone;
3949 conn->smb1.server.system_time = server_system_time;
3951 tevent_req_done(req);
3954 static struct tevent_req *smbXcli_negprot_smb2_subreq(struct smbXcli_negprot_state *state)
3958 uint16_t dialect_count = 0;
3960 buf = state->smb2.dyn;
3961 for (i=0; i < ARRAY_SIZE(smb2cli_prots); i++) {
3962 if (smb2cli_prots[i].proto < state->min_protocol) {
3966 if (smb2cli_prots[i].proto > state->max_protocol) {
3970 SSVAL(buf, dialect_count*2, smb2cli_prots[i].smb2_dialect);
3974 buf = state->smb2.fixed;
3976 SSVAL(buf, 2, dialect_count);
3977 SSVAL(buf, 4, state->conn->smb2.client.security_mode);
3978 SSVAL(buf, 6, 0); /* Reserved */
3979 if (state->max_protocol >= PROTOCOL_SMB2_22) {
3980 SIVAL(buf, 8, state->conn->smb2.client.capabilities);
3982 SIVAL(buf, 8, 0); /* Capabilities */
3984 if (state->max_protocol >= PROTOCOL_SMB2_10) {
3988 status = GUID_to_ndr_blob(&state->conn->smb2.client.guid,
3990 if (!NT_STATUS_IS_OK(status)) {
3993 memcpy(buf+12, blob.data, 16); /* ClientGuid */
3995 memset(buf+12, 0, 16); /* ClientGuid */
3997 SBVAL(buf, 28, 0); /* ClientStartTime */
3999 return smb2cli_req_send(state, state->ev,
4000 state->conn, SMB2_OP_NEGPROT,
4002 state->timeout_msec,
4003 NULL, NULL, /* tcon, session */
4004 state->smb2.fixed, sizeof(state->smb2.fixed),
4005 state->smb2.dyn, dialect_count*2);
4008 static void smbXcli_negprot_smb2_done(struct tevent_req *subreq)
4010 struct tevent_req *req =
4011 tevent_req_callback_data(subreq,
4013 struct smbXcli_negprot_state *state =
4014 tevent_req_data(req,
4015 struct smbXcli_negprot_state);
4016 struct smbXcli_conn *conn = state->conn;
4017 size_t security_offset, security_length;
4023 uint16_t dialect_revision;
4024 static const struct smb2cli_req_expected_response expected[] = {
4026 .status = NT_STATUS_OK,
4031 status = smb2cli_req_recv(subreq, state, &iov,
4032 expected, ARRAY_SIZE(expected));
4033 TALLOC_FREE(subreq);
4034 if (tevent_req_nterror(req, status)) {
4038 body = (uint8_t *)iov[1].iov_base;
4040 dialect_revision = SVAL(body, 4);
4042 for (i=0; i < ARRAY_SIZE(smb2cli_prots); i++) {
4043 if (smb2cli_prots[i].proto < state->min_protocol) {
4047 if (smb2cli_prots[i].proto > state->max_protocol) {
4051 if (smb2cli_prots[i].smb2_dialect != dialect_revision) {
4055 conn->protocol = smb2cli_prots[i].proto;
4059 if (conn->protocol == PROTOCOL_NONE) {
4060 if (state->min_protocol >= PROTOCOL_SMB2_02) {
4061 tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
4065 if (dialect_revision != SMB2_DIALECT_REVISION_2FF) {
4066 tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
4070 /* make sure we do not loop forever */
4071 state->min_protocol = PROTOCOL_SMB2_02;
4074 * send a SMB2 negprot, in order to negotiate
4077 subreq = smbXcli_negprot_smb2_subreq(state);
4078 if (tevent_req_nomem(subreq, req)) {
4081 tevent_req_set_callback(subreq, smbXcli_negprot_smb2_done, req);
4085 conn->smb2.server.security_mode = SVAL(body, 2);
4087 blob = data_blob_const(body + 8, 16);
4088 status = GUID_from_data_blob(&blob, &conn->smb2.server.guid);
4089 if (tevent_req_nterror(req, status)) {
4093 conn->smb2.server.capabilities = IVAL(body, 24);
4094 conn->smb2.server.max_trans_size= IVAL(body, 28);
4095 conn->smb2.server.max_read_size = IVAL(body, 32);
4096 conn->smb2.server.max_write_size= IVAL(body, 36);
4097 conn->smb2.server.system_time = BVAL(body, 40);
4098 conn->smb2.server.start_time = BVAL(body, 48);
4100 security_offset = SVAL(body, 56);
4101 security_length = SVAL(body, 58);
4103 if (security_offset != SMB2_HDR_BODY + iov[1].iov_len) {
4104 tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
4108 if (security_length > iov[2].iov_len) {
4109 tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
4113 conn->smb2.server.gss_blob = data_blob_talloc(conn,
4116 if (tevent_req_nomem(conn->smb2.server.gss_blob.data, req)) {
4120 tevent_req_done(req);
4123 static NTSTATUS smbXcli_negprot_dispatch_incoming(struct smbXcli_conn *conn,
4124 TALLOC_CTX *tmp_mem,
4127 size_t num_pending = talloc_array_length(conn->pending);
4128 struct tevent_req *subreq;
4129 struct smbXcli_req_state *substate;
4130 struct tevent_req *req;
4131 uint32_t protocol_magic;
4132 size_t inbuf_len = smb_len_nbt(inbuf);
4134 if (num_pending != 1) {
4135 return NT_STATUS_INTERNAL_ERROR;
4138 if (inbuf_len < 4) {
4139 return NT_STATUS_INVALID_NETWORK_RESPONSE;
4142 subreq = conn->pending[0];
4143 substate = tevent_req_data(subreq, struct smbXcli_req_state);
4144 req = tevent_req_callback_data(subreq, struct tevent_req);
4146 protocol_magic = IVAL(inbuf, 4);
4148 switch (protocol_magic) {
4150 tevent_req_set_callback(subreq, smbXcli_negprot_smb1_done, req);
4151 conn->dispatch_incoming = smb1cli_conn_dispatch_incoming;
4152 return smb1cli_conn_dispatch_incoming(conn, tmp_mem, inbuf);
4155 if (substate->smb2.recv_iov == NULL) {
4157 * For the SMB1 negprot we have move it.
4159 substate->smb2.recv_iov = substate->smb1.recv_iov;
4160 substate->smb1.recv_iov = NULL;
4164 * we got an SMB2 answer, which consumed sequence number 0
4165 * so we need to use 1 as the next one
4168 tevent_req_set_callback(subreq, smbXcli_negprot_smb2_done, req);
4169 conn->dispatch_incoming = smb2cli_conn_dispatch_incoming;
4170 return smb2cli_conn_dispatch_incoming(conn, tmp_mem, inbuf);
4173 DEBUG(10, ("Got non-SMB PDU\n"));
4174 return NT_STATUS_INVALID_NETWORK_RESPONSE;
4177 NTSTATUS smbXcli_negprot_recv(struct tevent_req *req)
4179 return tevent_req_simple_recv_ntstatus(req);
4182 NTSTATUS smbXcli_negprot(struct smbXcli_conn *conn,
4183 uint32_t timeout_msec,
4184 enum protocol_types min_protocol,
4185 enum protocol_types max_protocol)
4187 TALLOC_CTX *frame = talloc_stackframe();
4188 struct tevent_context *ev;
4189 struct tevent_req *req;
4190 NTSTATUS status = NT_STATUS_NO_MEMORY;
4193 if (smbXcli_conn_has_async_calls(conn)) {
4195 * Can't use sync call while an async call is in flight
4197 status = NT_STATUS_INVALID_PARAMETER_MIX;
4200 ev = tevent_context_init(frame);
4204 req = smbXcli_negprot_send(frame, ev, conn, timeout_msec,
4205 min_protocol, max_protocol);
4209 ok = tevent_req_poll(req, ev);
4211 status = map_nt_error_from_unix_common(errno);
4214 status = smbXcli_negprot_recv(req);
4220 static int smbXcli_session_destructor(struct smbXcli_session *session)
4222 if (session->conn == NULL) {
4226 DLIST_REMOVE(session->conn->sessions, session);
4230 struct smbXcli_session *smbXcli_session_create(TALLOC_CTX *mem_ctx,
4231 struct smbXcli_conn *conn)
4233 struct smbXcli_session *session;
4235 session = talloc_zero(mem_ctx, struct smbXcli_session);
4236 if (session == NULL) {
4239 talloc_set_destructor(session, smbXcli_session_destructor);
4241 DLIST_ADD_END(conn->sessions, session, struct smbXcli_session *);
4242 session->conn = conn;
4247 uint16_t smb1cli_session_current_id(struct smbXcli_session *session)
4249 return session->smb1.session_id;
4252 void smb1cli_session_set_id(struct smbXcli_session *session,
4253 uint16_t session_id)
4255 session->smb1.session_id = session_id;
4258 uint8_t smb2cli_session_security_mode(struct smbXcli_session *session)
4260 struct smbXcli_conn *conn = session->conn;
4261 uint8_t security_mode = 0;
4264 return security_mode;
4267 security_mode = SMB2_NEGOTIATE_SIGNING_ENABLED;
4268 if (conn->mandatory_signing) {
4269 security_mode |= SMB2_NEGOTIATE_SIGNING_REQUIRED;
4272 return security_mode;
4275 uint64_t smb2cli_session_current_id(struct smbXcli_session *session)
4277 return session->smb2.session_id;
4280 uint16_t smb2cli_session_get_flags(struct smbXcli_session *session)
4282 return session->smb2.session_flags;
4285 NTSTATUS smb2cli_session_application_key(struct smbXcli_session *session,
4286 TALLOC_CTX *mem_ctx,
4289 *key = data_blob_null;
4291 if (session->smb2.application_key.length == 0) {
4292 return NT_STATUS_NO_USER_SESSION_KEY;
4295 *key = data_blob_dup_talloc(mem_ctx, session->smb2.application_key);
4296 if (key->data == NULL) {
4297 return NT_STATUS_NO_MEMORY;
4300 return NT_STATUS_OK;
4303 void smb2cli_session_set_id_and_flags(struct smbXcli_session *session,
4304 uint64_t session_id,
4305 uint16_t session_flags)
4307 session->smb2.session_id = session_id;
4308 session->smb2.session_flags = session_flags;
4311 NTSTATUS smb2cli_session_set_session_key(struct smbXcli_session *session,
4312 const DATA_BLOB _session_key,
4313 const struct iovec *recv_iov)
4315 struct smbXcli_conn *conn = session->conn;
4316 uint16_t no_sign_flags;
4317 uint8_t session_key[16];
4321 return NT_STATUS_INVALID_PARAMETER_MIX;
4324 no_sign_flags = SMB2_SESSION_FLAG_IS_GUEST | SMB2_SESSION_FLAG_IS_NULL;
4326 if (session->smb2.session_flags & no_sign_flags) {
4327 session->smb2.should_sign = false;
4328 return NT_STATUS_OK;
4331 if (session->smb2.signing_key.length != 0) {
4332 return NT_STATUS_INVALID_PARAMETER_MIX;
4335 ZERO_STRUCT(session_key);
4336 memcpy(session_key, _session_key.data,
4337 MIN(_session_key.length, sizeof(session_key)));
4339 session->smb2.signing_key = data_blob_talloc(session,
4341 sizeof(session_key));
4342 if (session->smb2.signing_key.data == NULL) {
4343 ZERO_STRUCT(session_key);
4344 return NT_STATUS_NO_MEMORY;
4347 if (conn->protocol >= PROTOCOL_SMB2_24) {
4348 const DATA_BLOB label = data_blob_string_const_null("SMB2AESCMAC");
4349 const DATA_BLOB context = data_blob_string_const_null("SmbSign");
4351 smb2_key_derivation(session_key, sizeof(session_key),
4352 label.data, label.length,
4353 context.data, context.length,
4354 session->smb2.signing_key.data);
4357 session->smb2.encryption_key = data_blob_dup_talloc(session,
4358 session->smb2.signing_key);
4359 if (session->smb2.encryption_key.data == NULL) {
4360 ZERO_STRUCT(session_key);
4361 return NT_STATUS_NO_MEMORY;
4364 if (conn->protocol >= PROTOCOL_SMB2_24) {
4365 const DATA_BLOB label = data_blob_string_const_null("SMB2AESCCM");
4366 const DATA_BLOB context = data_blob_string_const_null("ServerIn ");
4368 smb2_key_derivation(session_key, sizeof(session_key),
4369 label.data, label.length,
4370 context.data, context.length,
4371 session->smb2.encryption_key.data);
4374 session->smb2.decryption_key = data_blob_dup_talloc(session,
4375 session->smb2.signing_key);
4376 if (session->smb2.decryption_key.data == NULL) {
4377 ZERO_STRUCT(session_key);
4378 return NT_STATUS_NO_MEMORY;
4381 if (conn->protocol >= PROTOCOL_SMB2_24) {
4382 const DATA_BLOB label = data_blob_string_const_null("SMB2AESCCM");
4383 const DATA_BLOB context = data_blob_string_const_null("ServerOut");
4385 smb2_key_derivation(session_key, sizeof(session_key),
4386 label.data, label.length,
4387 context.data, context.length,
4388 session->smb2.decryption_key.data);
4391 session->smb2.application_key = data_blob_dup_talloc(session,
4392 session->smb2.signing_key);
4393 if (session->smb2.application_key.data == NULL) {
4394 ZERO_STRUCT(session_key);
4395 return NT_STATUS_NO_MEMORY;
4398 if (conn->protocol >= PROTOCOL_SMB2_24) {
4399 const DATA_BLOB label = data_blob_string_const_null("SMB2APP");
4400 const DATA_BLOB context = data_blob_string_const_null("SmbRpc");
4402 smb2_key_derivation(session_key, sizeof(session_key),
4403 label.data, label.length,
4404 context.data, context.length,
4405 session->smb2.application_key.data);
4407 ZERO_STRUCT(session_key);
4409 session->smb2.channel_signing_key = data_blob_dup_talloc(session,
4410 session->smb2.signing_key);
4411 if (session->smb2.channel_signing_key.data == NULL) {
4412 return NT_STATUS_NO_MEMORY;
4415 status = smb2_signing_check_pdu(session->smb2.channel_signing_key,
4416 session->conn->protocol,
4418 if (!NT_STATUS_IS_OK(status)) {
4422 session->smb2.should_sign = false;
4423 session->smb2.should_encrypt = false;
4425 if (conn->desire_signing) {
4426 session->smb2.should_sign = true;
4429 if (conn->smb2.server.security_mode & SMB2_NEGOTIATE_SIGNING_REQUIRED) {
4430 session->smb2.should_sign = true;
4433 if (session->smb2.session_flags & SMB2_SESSION_FLAG_ENCRYPT_DATA) {
4434 session->smb2.should_encrypt = true;
4437 if (conn->protocol < PROTOCOL_SMB2_24) {
4438 session->smb2.should_encrypt = false;
4441 if (!(conn->smb2.server.capabilities & SMB2_CAP_ENCRYPTION)) {
4442 session->smb2.should_encrypt = false;
4445 generate_random_buffer((uint8_t *)&session->smb2.channel_nonce,
4446 sizeof(session->smb2.channel_nonce));
4447 session->smb2.channel_next = 1;
4449 return NT_STATUS_OK;
4452 NTSTATUS smb2cli_session_create_channel(TALLOC_CTX *mem_ctx,
4453 struct smbXcli_session *session1,
4454 struct smbXcli_conn *conn,
4455 struct smbXcli_session **_session2)
4457 struct smbXcli_session *session2;
4459 if (session1->smb2.signing_key.length == 0) {
4460 return NT_STATUS_INVALID_PARAMETER_MIX;
4463 if (session1->smb2.channel_next == 0) {
4464 return NT_STATUS_INVALID_PARAMETER_MIX;
4468 return NT_STATUS_INVALID_PARAMETER_MIX;
4471 session2 = talloc_zero(mem_ctx, struct smbXcli_session);
4472 if (session2 == NULL) {
4473 return NT_STATUS_NO_MEMORY;
4475 session2->smb2.session_id = session1->smb2.session_id;
4476 session2->smb2.session_flags = session1->smb2.session_flags;
4478 session2->smb2.signing_key = data_blob_dup_talloc(session2,
4479 session1->smb2.signing_key);
4480 if (session2->smb2.signing_key.data == NULL) {
4481 return NT_STATUS_NO_MEMORY;
4484 session2->smb2.application_key = data_blob_dup_talloc(session2,
4485 session1->smb2.application_key);
4486 if (session2->smb2.application_key.data == NULL) {
4487 return NT_STATUS_NO_MEMORY;
4490 session2->smb2.should_sign = session1->smb2.should_sign;
4491 session2->smb2.should_encrypt = session1->smb2.should_encrypt;
4493 session2->smb2.channel_nonce = session1->smb2.channel_nonce;
4494 session2->smb2.channel_nonce += session1->smb2.channel_next;
4495 session1->smb2.channel_next++;
4497 session2->smb2.encryption_key = data_blob_dup_talloc(session2,
4498 session1->smb2.encryption_key);
4499 if (session2->smb2.encryption_key.data == NULL) {
4500 return NT_STATUS_NO_MEMORY;
4503 session2->smb2.decryption_key = data_blob_dup_talloc(session2,
4504 session1->smb2.decryption_key);
4505 if (session2->smb2.decryption_key.data == NULL) {
4506 return NT_STATUS_NO_MEMORY;
4509 talloc_set_destructor(session2, smbXcli_session_destructor);
4510 DLIST_ADD_END(conn->sessions, session2, struct smbXcli_session *);
4511 session2->conn = conn;
4513 *_session2 = session2;
4514 return NT_STATUS_OK;
4517 NTSTATUS smb2cli_session_set_channel_key(struct smbXcli_session *session,
4518 const DATA_BLOB _channel_key,
4519 const struct iovec *recv_iov)
4521 struct smbXcli_conn *conn = session->conn;
4522 uint8_t channel_key[16];
4526 return NT_STATUS_INVALID_PARAMETER_MIX;
4529 if (session->smb2.channel_signing_key.length != 0) {
4530 return NT_STATUS_INVALID_PARAMETER_MIX;
4533 ZERO_STRUCT(channel_key);
4534 memcpy(channel_key, _channel_key.data,
4535 MIN(_channel_key.length, sizeof(channel_key)));
4537 session->smb2.channel_signing_key = data_blob_talloc(session,
4539 sizeof(channel_key));
4540 if (session->smb2.channel_signing_key.data == NULL) {
4541 ZERO_STRUCT(channel_key);
4542 return NT_STATUS_NO_MEMORY;
4545 if (conn->protocol >= PROTOCOL_SMB2_24) {
4546 const DATA_BLOB label = data_blob_string_const_null("SMB2AESCMAC");
4547 const DATA_BLOB context = data_blob_string_const_null("SmbSign");
4549 smb2_key_derivation(channel_key, sizeof(channel_key),
4550 label.data, label.length,
4551 context.data, context.length,
4552 session->smb2.channel_signing_key.data);
4554 ZERO_STRUCT(channel_key);
4556 status = smb2_signing_check_pdu(session->smb2.channel_signing_key,
4557 session->conn->protocol,
4559 if (!NT_STATUS_IS_OK(status)) {
4563 return NT_STATUS_OK;
4566 struct smbXcli_tcon *smbXcli_tcon_create(TALLOC_CTX *mem_ctx)
4568 struct smbXcli_tcon *tcon;
4570 tcon = talloc_zero(mem_ctx, struct smbXcli_tcon);
4578 uint16_t smb1cli_tcon_current_id(struct smbXcli_tcon *tcon)
4580 return tcon->smb1.tcon_id;
4583 void smb1cli_tcon_set_id(struct smbXcli_tcon *tcon, uint16_t tcon_id)
4585 tcon->smb1.tcon_id = tcon_id;
4588 bool smb1cli_tcon_set_values(struct smbXcli_tcon *tcon,
4590 uint16_t optional_support,
4591 uint32_t maximal_access,
4592 uint32_t guest_maximal_access,
4593 const char *service,
4594 const char *fs_type)
4596 tcon->smb1.tcon_id = tcon_id;
4597 tcon->smb1.optional_support = optional_support;
4598 tcon->smb1.maximal_access = maximal_access;
4599 tcon->smb1.guest_maximal_access = guest_maximal_access;
4601 TALLOC_FREE(tcon->smb1.service);
4602 tcon->smb1.service = talloc_strdup(tcon, service);
4603 if (service != NULL && tcon->smb1.service == NULL) {
4607 TALLOC_FREE(tcon->smb1.fs_type);
4608 tcon->smb1.fs_type = talloc_strdup(tcon, fs_type);
4609 if (fs_type != NULL && tcon->smb1.fs_type == NULL) {
4616 uint32_t smb2cli_tcon_current_id(struct smbXcli_tcon *tcon)
4618 return tcon->smb2.tcon_id;
4621 uint32_t smb2cli_tcon_capabilities(struct smbXcli_tcon *tcon)
4623 return tcon->smb2.capabilities;
4626 void smb2cli_tcon_set_values(struct smbXcli_tcon *tcon,
4630 uint32_t capabilities,
4631 uint32_t maximal_access)
4633 tcon->smb2.tcon_id = tcon_id;
4634 tcon->smb2.type = type;
4635 tcon->smb2.flags = flags;
4636 tcon->smb2.capabilities = capabilities;
4637 tcon->smb2.maximal_access = maximal_access;