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076216da79
Fixes: source4/libcli/smb2/getinfo.c:222:11: warning: Passed-by-value struct argument contains uninitialized data (e.g., field: 'data') <--[clang] status = smb_raw_fsinfo_passthru_parse(b.out.blob, mem_ctx, io->generic.level, io); ^ 1 warning generated. Signed-off-by: Noel Power <noel.power@suse.com> Reviewed-by: Andreas Schneider <asn@samba.org>
240 lines
6.0 KiB
C
240 lines
6.0 KiB
C
/*
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Unix SMB/CIFS implementation.
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SMB2 client getinfo calls
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Copyright (C) Andrew Tridgell 2005
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "includes.h"
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#include "libcli/raw/libcliraw.h"
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#include "libcli/raw/raw_proto.h"
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#include "libcli/smb2/smb2.h"
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#include "libcli/smb2/smb2_calls.h"
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/*
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send a getinfo request
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*/
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struct smb2_request *smb2_getinfo_send(struct smb2_tree *tree, struct smb2_getinfo *io)
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{
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struct smb2_request *req;
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NTSTATUS status;
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size_t max_payload;
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req = smb2_request_init_tree(tree, SMB2_OP_GETINFO, 0x28, true,
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io->in.input_buffer.length);
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if (req == NULL) return NULL;
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SCVAL(req->out.body, 0x02, io->in.info_type);
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SCVAL(req->out.body, 0x03, io->in.info_class);
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SIVAL(req->out.body, 0x04, io->in.output_buffer_length);
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/*
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* uint16_t input_buffer_offset
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* uint16_t reserved
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* uint32_t input_buffer_length
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*
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* We use smb2_push_o32s32_blob() which would
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* expect uint32_t offset, uint32_t length.
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*
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* Everything is little endian, we can just
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* overwrite the reserved field later.
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*/
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SIVAL(req->out.body, 0x10, io->in.additional_information);
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SIVAL(req->out.body, 0x14, io->in.getinfo_flags);
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smb2_push_handle(req->out.body+0x18, &io->in.file.handle);
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/* this blob is used for quota queries */
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status = smb2_push_o32s32_blob(&req->out, 0x08, io->in.input_buffer);
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if (!NT_STATUS_IS_OK(status)) {
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talloc_free(req);
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return NULL;
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}
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SSVAL(req->out.body, 0x0C, io->in.reserved);
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max_payload = MAX(io->in.output_buffer_length, io->in.input_buffer.length);
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req->credit_charge = (MAX(max_payload, 1) - 1)/ 65536 + 1;
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smb2_transport_send(req);
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return req;
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}
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/*
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recv a getinfo reply
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*/
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NTSTATUS smb2_getinfo_recv(struct smb2_request *req, TALLOC_CTX *mem_ctx,
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struct smb2_getinfo *io)
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{
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NTSTATUS status;
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if (!smb2_request_receive(req) ||
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smb2_request_is_error(req)) {
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return smb2_request_destroy(req);
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}
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SMB2_CHECK_PACKET_RECV(req, 0x08, true);
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status = smb2_pull_o16s16_blob(&req->in, mem_ctx, req->in.body+0x02, &io->out.blob);
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if (!NT_STATUS_IS_OK(status)) {
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return status;
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}
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return smb2_request_destroy(req);
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}
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/*
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sync getinfo request
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*/
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NTSTATUS smb2_getinfo(struct smb2_tree *tree, TALLOC_CTX *mem_ctx,
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struct smb2_getinfo *io)
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{
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struct smb2_request *req = smb2_getinfo_send(tree, io);
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return smb2_getinfo_recv(req, mem_ctx, io);
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}
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/*
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map a generic info level to a SMB2 info level
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*/
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uint16_t smb2_getinfo_map_level(uint16_t level, uint8_t info_class)
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{
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if (info_class == SMB2_0_INFO_FILE &&
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level == RAW_FILEINFO_SEC_DESC) {
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return SMB2_0_INFO_SECURITY;
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}
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if ((level & 0xFF) == info_class) {
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return level;
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} else if (level > 1000) {
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return ((level-1000)<<8) | info_class;
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}
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DEBUG(0,("Unable to map SMB2 info level 0x%04x of class %d\n",
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level, info_class));
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return 0;
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}
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/*
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level specific getinfo call - async send
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*/
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struct smb2_request *smb2_getinfo_file_send(struct smb2_tree *tree, union smb_fileinfo *io)
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{
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struct smb2_getinfo b;
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uint16_t smb2_level = smb2_getinfo_map_level(
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io->generic.level, SMB2_0_INFO_FILE);
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if (smb2_level == 0) {
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return NULL;
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}
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ZERO_STRUCT(b);
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b.in.info_type = smb2_level & 0xFF;
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b.in.info_class = smb2_level >> 8;
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b.in.output_buffer_length = 0x10000;
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b.in.input_buffer = data_blob_null;
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b.in.file.handle = io->generic.in.file.handle;
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if (io->generic.level == RAW_FILEINFO_SEC_DESC) {
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b.in.additional_information = io->query_secdesc.in.secinfo_flags;
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}
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if (io->generic.level == RAW_FILEINFO_SMB2_ALL_EAS) {
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b.in.getinfo_flags = io->all_eas.in.continue_flags;
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}
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return smb2_getinfo_send(tree, &b);
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}
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/*
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recv a getinfo reply and parse the level info
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*/
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NTSTATUS smb2_getinfo_file_recv(struct smb2_request *req, TALLOC_CTX *mem_ctx,
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union smb_fileinfo *io)
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{
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struct smb2_getinfo b;
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NTSTATUS status;
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status = smb2_getinfo_recv(req, mem_ctx, &b);
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NT_STATUS_NOT_OK_RETURN(status);
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status = smb_raw_fileinfo_passthru_parse(&b.out.blob, mem_ctx, io->generic.level, io);
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data_blob_free(&b.out.blob);
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return status;
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}
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/*
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level specific getinfo call
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*/
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NTSTATUS smb2_getinfo_file(struct smb2_tree *tree, TALLOC_CTX *mem_ctx,
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union smb_fileinfo *io)
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{
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struct smb2_request *req = smb2_getinfo_file_send(tree, io);
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return smb2_getinfo_file_recv(req, mem_ctx, io);
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}
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/*
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level specific getinfo call - async send
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*/
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struct smb2_request *smb2_getinfo_fs_send(struct smb2_tree *tree, union smb_fsinfo *io)
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{
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struct smb2_getinfo b;
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uint16_t smb2_level = smb2_getinfo_map_level(
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io->generic.level, SMB2_0_INFO_FILESYSTEM);
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if (smb2_level == 0) {
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return NULL;
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}
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ZERO_STRUCT(b);
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b.in.output_buffer_length = 0x10000;
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b.in.file.handle = io->generic.handle;
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b.in.info_type = smb2_level & 0xFF;
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b.in.info_class = smb2_level >> 8;
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return smb2_getinfo_send(tree, &b);
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}
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/*
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recv a getinfo reply and parse the level info
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*/
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NTSTATUS smb2_getinfo_fs_recv(struct smb2_request *req, TALLOC_CTX *mem_ctx,
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union smb_fsinfo *io)
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{
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struct smb2_getinfo b = {
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.in = {0},
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};
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NTSTATUS status;
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status = smb2_getinfo_recv(req, mem_ctx, &b);
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NT_STATUS_NOT_OK_RETURN(status);
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status = smb_raw_fsinfo_passthru_parse(b.out.blob, mem_ctx, io->generic.level, io);
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data_blob_free(&b.out.blob);
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return status;
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}
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/*
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level specific getinfo call
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*/
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NTSTATUS smb2_getinfo_fs(struct smb2_tree *tree, TALLOC_CTX *mem_ctx,
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union smb_fsinfo *io)
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{
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struct smb2_request *req = smb2_getinfo_fs_send(tree, io);
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return smb2_getinfo_fs_recv(req, mem_ctx, io);
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}
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