diff options
Diffstat (limited to 'libcli/smb')
| -rw-r--r-- | libcli/smb/smb2cli_write.c | 161 | ||||
| -rw-r--r-- | libcli/smb/smbXcli_base.h | 26 | ||||
| -rwxr-xr-x | libcli/smb/wscript_build | 1 |
3 files changed, 188 insertions, 0 deletions
diff --git a/libcli/smb/smb2cli_write.c b/libcli/smb/smb2cli_write.c new file mode 100644 index 0000000000..2850cea398 --- /dev/null +++ b/libcli/smb/smb2cli_write.c @@ -0,0 +1,161 @@ +/* + Unix SMB/CIFS implementation. + smb2 lib + Copyright (C) Volker Lendecke 2011 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include "includes.h" +#include "system/network.h" +#include "lib/util/tevent_ntstatus.h" +#include "smb_common.h" +#include "smbXcli_base.h" + +struct smb2cli_write_state { + uint8_t fixed[48]; + uint8_t dyn_pad[1]; +}; + +static void smb2cli_write_done(struct tevent_req *subreq); + +struct tevent_req *smb2cli_write_send(TALLOC_CTX *mem_ctx, + struct tevent_context *ev, + struct smbXcli_conn *conn, + uint32_t timeout_msec, + struct smbXcli_session *session, + uint32_t tcon_id, + uint32_t length, + uint64_t offset, + uint64_t fid_persistent, + uint64_t fid_volatile, + uint32_t remaining_bytes, + uint32_t flags, + const uint8_t *data) +{ + struct tevent_req *req, *subreq; + struct smb2cli_write_state *state; + uint8_t *fixed; + const uint8_t *dyn; + size_t dyn_len; + + req = tevent_req_create(mem_ctx, &state, + struct smb2cli_write_state); + if (req == NULL) { + return NULL; + } + + fixed = state->fixed; + + SSVAL(fixed, 0, 49); + SSVAL(fixed, 2, SMB2_HDR_BODY + 48); + SIVAL(fixed, 4, length); + SBVAL(fixed, 8, offset); + SBVAL(fixed, 16, fid_persistent); + SBVAL(fixed, 24, fid_volatile); + SIVAL(fixed, 36, remaining_bytes); + SIVAL(fixed, 44, flags); + + if (length > 0) { + dyn = data; + dyn_len = length; + } else { + dyn = state->dyn_pad;; + dyn_len = sizeof(state->dyn_pad); + } + + subreq = smb2cli_req_send(state, ev, conn, SMB2_OP_WRITE, + 0, 0, /* flags */ + timeout_msec, + 0xFEFF, /* pid */ + tcon_id, + session, + state->fixed, sizeof(state->fixed), + dyn, dyn_len); + if (tevent_req_nomem(subreq, req)) { + return tevent_req_post(req, ev); + } + tevent_req_set_callback(subreq, smb2cli_write_done, req); + return req; +} + +static void smb2cli_write_done(struct tevent_req *subreq) +{ + struct tevent_req *req = + tevent_req_callback_data(subreq, + struct tevent_req); + NTSTATUS status; + static const struct smb2cli_req_expected_response expected[] = { + { + .status = NT_STATUS_OK, + .body_size = 0x11 + } + }; + + status = smb2cli_req_recv(subreq, NULL, NULL, + expected, ARRAY_SIZE(expected)); + if (tevent_req_nterror(req, status)) { + return; + } + tevent_req_done(req); +} + +NTSTATUS smb2cli_write_recv(struct tevent_req *req) +{ + return tevent_req_simple_recv_ntstatus(req); +} + +NTSTATUS smb2cli_write(struct smbXcli_conn *conn, + uint32_t timeout_msec, + struct smbXcli_session *session, + uint32_t tcon_id, + uint32_t length, + uint64_t offset, + uint64_t fid_persistent, + uint64_t fid_volatile, + uint32_t remaining_bytes, + uint32_t flags, + const uint8_t *data) +{ + TALLOC_CTX *frame = talloc_stackframe(); + struct tevent_context *ev; + struct tevent_req *req; + NTSTATUS status = NT_STATUS_NO_MEMORY; + + if (smbXcli_conn_has_async_calls(conn)) { + /* + * Can't use sync call while an async call is in flight + */ + status = NT_STATUS_INVALID_PARAMETER; + goto fail; + } + ev = tevent_context_init(frame); + if (ev == NULL) { + goto fail; + } + req = smb2cli_write_send(frame, ev, conn, timeout_msec, session, + tcon_id, length, offset, + fid_persistent, fid_volatile, + remaining_bytes, flags, data); + if (req == NULL) { + goto fail; + } + if (!tevent_req_poll_ntstatus(req, ev, &status)) { + goto fail; + } + status = smb2cli_write_recv(req); + fail: + TALLOC_FREE(frame); + return status; +} diff --git a/libcli/smb/smbXcli_base.h b/libcli/smb/smbXcli_base.h index 3d1f393877..bbc57cfd6d 100644 --- a/libcli/smb/smbXcli_base.h +++ b/libcli/smb/smbXcli_base.h @@ -371,4 +371,30 @@ NTSTATUS smb2cli_read(struct smbXcli_conn *conn, uint8_t **data, uint32_t *data_length); +struct tevent_req *smb2cli_write_send(TALLOC_CTX *mem_ctx, + struct tevent_context *ev, + struct smbXcli_conn *conn, + uint32_t timeout_msec, + struct smbXcli_session *session, + uint32_t tcon_id, + uint32_t length, + uint64_t offset, + uint64_t fid_persistent, + uint64_t fid_volatile, + uint32_t remaining_bytes, + uint32_t flags, + const uint8_t *data); +NTSTATUS smb2cli_write_recv(struct tevent_req *req); +NTSTATUS smb2cli_write(struct smbXcli_conn *conn, + uint32_t timeout_msec, + struct smbXcli_session *session, + uint32_t tcon_id, + uint32_t length, + uint64_t offset, + uint64_t fid_persistent, + uint64_t fid_volatile, + uint32_t remaining_bytes, + uint32_t flags, + const uint8_t *data); + #endif /* _SMBXCLI_BASE_H_ */ diff --git a/libcli/smb/wscript_build b/libcli/smb/wscript_build index 69f9f032ae..9869f19ce2 100755 --- a/libcli/smb/wscript_build +++ b/libcli/smb/wscript_build @@ -12,6 +12,7 @@ bld.SAMBA_LIBRARY('cli_smb_common', smb2cli_create.c smb2cli_close.c smb2cli_read.c + smb2cli_write.c ''', deps='LIBCRYPTO errors gensec krb5samba LIBASYNC_REQ', public_deps='talloc samba-util', |