diff options
Diffstat (limited to 'source4/libcli/smb2/negprot.c')
| -rw-r--r-- | source4/libcli/smb2/negprot.c | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/source4/libcli/smb2/negprot.c b/source4/libcli/smb2/negprot.c new file mode 100644 index 0000000000..c1f0cf0b24 --- /dev/null +++ b/source4/libcli/smb2/negprot.c @@ -0,0 +1,113 @@ +/* + Unix SMB/CIFS implementation. + + SMB2 client negprot handling + + Copyright (C) Andrew Tridgell 2005 + + 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" +#include "librpc/ndr/libndr.h" + +/* + send a negprot request +*/ +struct smb2_request *smb2_negprot_send(struct smb2_transport *transport, + struct smb2_negprot *io) +{ + struct smb2_request *req; + uint16_t size = 0x24 + io->in.dialect_count*2; + enum ndr_err_code ndr_err; + int i; + + req = smb2_request_init(transport, SMB2_OP_NEGPROT, size, false, 0); + if (req == NULL) return NULL; + + + SSVAL(req->out.body, 0x00, 0x24); + SSVAL(req->out.body, 0x02, io->in.dialect_count); + SSVAL(req->out.body, 0x04, io->in.security_mode); + SSVAL(req->out.body, 0x06, io->in.reserved); + SIVAL(req->out.body, 0x08, io->in.capabilities); + ndr_err = smbcli_push_guid(req->out.body, 0x0C, &io->in.client_guid); + if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) { + talloc_free(req); + return NULL; + } + smbcli_push_nttime(req->out.body, 0x1C, io->in.start_time); + for (i=0;i<io->in.dialect_count;i++) { + SSVAL(req->out.body, 0x24 + i*2, io->in.dialects[i]); + } + + smb2_transport_send(req); + + return req; +} + +/* + recv a negprot reply +*/ +NTSTATUS smb2_negprot_recv(struct smb2_request *req, TALLOC_CTX *mem_ctx, + struct smb2_negprot *io) +{ + NTSTATUS status; + enum ndr_err_code ndr_err; + + if (!smb2_request_receive(req) || + smb2_request_is_error(req)) { + return smb2_request_destroy(req); + } + + SMB2_CHECK_PACKET_RECV(req, 0x40, true); + + io->out.security_mode = SVAL(req->in.body, 0x02); + io->out.dialect_revision = SVAL(req->in.body, 0x04); + io->out.reserved = SVAL(req->in.body, 0x06); + ndr_err = smbcli_pull_guid(req->in.body, 0x08, &io->in.client_guid); + if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) { + smb2_request_destroy(req); + return NT_STATUS_INTERNAL_ERROR; + } + io->out.capabilities = IVAL(req->in.body, 0x18); + io->out.max_transact_size = IVAL(req->in.body, 0x1C); + io->out.max_read_size = IVAL(req->in.body, 0x20); + io->out.max_write_size = IVAL(req->in.body, 0x24); + io->out.system_time = smbcli_pull_nttime(req->in.body, 0x28); + io->out.server_start_time = smbcli_pull_nttime(req->in.body, 0x30); + io->out.reserved2 = IVAL(req->in.body, 0x3C); + + status = smb2_pull_o16s16_blob(&req->in, mem_ctx, req->in.body+0x38, &io->out.secblob); + if (!NT_STATUS_IS_OK(status)) { + smb2_request_destroy(req); + return status; + } + + return smb2_request_destroy(req); +} + +/* + sync negprot request +*/ +NTSTATUS smb2_negprot(struct smb2_transport *transport, + TALLOC_CTX *mem_ctx, struct smb2_negprot *io) +{ + struct smb2_request *req = smb2_negprot_send(transport, io); + return smb2_negprot_recv(req, mem_ctx, io); +} |