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Diffstat (limited to 'source4/libcli/smb2/notify.c')
| -rw-r--r-- | source4/libcli/smb2/notify.c | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/source4/libcli/smb2/notify.c b/source4/libcli/smb2/notify.c new file mode 100644 index 0000000..6786a70 --- /dev/null +++ b/source4/libcli/smb2/notify.c @@ -0,0 +1,116 @@ +/* + Unix SMB/CIFS implementation. + + SMB2 client notify calls + + Copyright (C) Stefan Metzmacher 2006 + + 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 "libcli/raw/libcliraw.h" +#include "libcli/raw/raw_proto.h" +#include "libcli/smb2/smb2.h" +#include "libcli/smb2/smb2_calls.h" + +/* + send a notify request +*/ +struct smb2_request *smb2_notify_send(struct smb2_tree *tree, struct smb2_notify *io) +{ + struct smb2_request *req; + uint32_t old_timeout; + + req = smb2_request_init_tree(tree, SMB2_OP_NOTIFY, 0x20, false, 0); + if (req == NULL) return NULL; + + SSVAL(req->out.hdr, SMB2_HDR_CREDIT, 0x0030); + + SSVAL(req->out.body, 0x02, io->in.recursive); + SIVAL(req->out.body, 0x04, io->in.buffer_size); + smb2_push_handle(req->out.body+0x08, &io->in.file.handle); + SIVAL(req->out.body, 0x18, io->in.completion_filter); + SIVAL(req->out.body, 0x1C, io->in.unknown); + + req->credit_charge = (MAX(io->in.buffer_size, 1) - 1)/ 65536 + 1; + + old_timeout = req->transport->options.request_timeout; + req->transport->options.request_timeout = 0; + smb2_transport_send(req); + req->transport->options.request_timeout = old_timeout; + + return req; +} + + +/* + recv a notify reply +*/ +NTSTATUS smb2_notify_recv(struct smb2_request *req, TALLOC_CTX *mem_ctx, + struct smb2_notify *io) +{ + NTSTATUS status; + DATA_BLOB blob; + uint32_t ofs, i; + + if (!smb2_request_receive(req) || + !smb2_request_is_ok(req)) { + return smb2_request_destroy(req); + } + + SMB2_CHECK_PACKET_RECV(req, 0x08, true); + + status = smb2_pull_o16s32_blob(&req->in, mem_ctx, req->in.body+0x02, &blob); + if (!NT_STATUS_IS_OK(status)) { + return status; + } + + io->out.changes = NULL; + io->out.num_changes = 0; + + /* count them */ + for (ofs=0; blob.length - ofs > 12; ) { + uint32_t next = IVAL(blob.data, ofs); + io->out.num_changes++; + if (next == 0 || (ofs + next) >= blob.length) break; + ofs += next; + } + + /* allocate array */ + io->out.changes = talloc_array(mem_ctx, struct notify_changes, io->out.num_changes); + if (!io->out.changes) { + return NT_STATUS_NO_MEMORY; + } + + for (i=ofs=0; i<io->out.num_changes; i++) { + io->out.changes[i].action = IVAL(blob.data, ofs+4); + smbcli_blob_pull_string(NULL, mem_ctx, &blob, + &io->out.changes[i].name, + ofs+8, ofs+12, STR_UNICODE); + ofs += IVAL(blob.data, ofs); + } + + return smb2_request_destroy(req); +} + +/* + sync notify request +*/ +NTSTATUS smb2_notify(struct smb2_tree *tree, TALLOC_CTX *mem_ctx, + struct smb2_notify *io) +{ + struct smb2_request *req = smb2_notify_send(tree, io); + return smb2_notify_recv(req, mem_ctx, io); +} |