source4/libcli/smb2/getinfo.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    SMB2 client getinfo calls
   5
   6    Copyright (C) Andrew Tridgell 2005
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 */
  21
  22 #include "includes.h"
  23 #include "libcli/raw/libcliraw.h"
  24 #include "libcli/raw/raw_proto.h"
  25 #include "libcli/smb2/smb2.h"
  26 #include "libcli/smb2/smb2_calls.h"
  27
  28 /*
  29   send a getinfo request
  30 */
  31 struct smb2_request *smb2_getinfo_send(struct smb2_tree *tree, struct smb2_getinfo *io)
  32 {
  33         struct smb2_request *req;
  34         NTSTATUS status;
  35         size_t max_payload;
  36
  37         req = smb2_request_init_tree(tree, SMB2_OP_GETINFO, 0x28, true,
  38                                      io->in.input_buffer.length);
  39         if (req == NULL) return NULL;
  40
  41         SCVAL(req->out.body, 0x02, io->in.info_type);
  42         SCVAL(req->out.body, 0x03, io->in.info_class);
  43         SIVAL(req->out.body, 0x04, io->in.output_buffer_length);
  44         /*
  45          * uint16_t input_buffer_offset
  46          * uint16_t reserved
  47          * uint32_t input_buffer_length
  48          *
  49          * We use smb2_push_o32s32_blob() which would
  50          * expect uint32_t offset, uint32_t length.
  51          *
  52          * Everything is little endian, we can just
  53          * overwrite the reserved field later.
  54          */
  55         SIVAL(req->out.body, 0x10, io->in.additional_information);
  56         SIVAL(req->out.body, 0x14, io->in.getinfo_flags);
  57         smb2_push_handle(req->out.body+0x18, &io->in.file.handle);
  58
  59         /* this blob is used for quota queries */
  60         status = smb2_push_o32s32_blob(&req->out, 0x08, io->in.input_buffer);
  61         if (!NT_STATUS_IS_OK(status)) {
  62                 talloc_free(req);
  63                 return NULL;
  64         }
  65         SSVAL(req->out.body, 0x0C, io->in.reserved);
  66
  67         max_payload = MAX(io->in.output_buffer_length, io->in.input_buffer.length);
  68         req->credit_charge = (MAX(max_payload, 1) - 1)/ 65536 + 1;
  69
  70         smb2_transport_send(req);
  71
  72         return req;
  73 }
  74
  75
  76 /*
  77   recv a getinfo reply
  78 */
  79 NTSTATUS smb2_getinfo_recv(struct smb2_request *req, TALLOC_CTX *mem_ctx,
  80                            struct smb2_getinfo *io)
  81 {
  82         NTSTATUS status;
  83
  84         if (!smb2_request_receive(req) ||
  85             smb2_request_is_error(req)) {
  86                 return smb2_request_destroy(req);
  87         }
  88
  89         SMB2_CHECK_PACKET_RECV(req, 0x08, true);
  90
  91         status = smb2_pull_o16s16_blob(&req->in, mem_ctx, req->in.body+0x02, &io->out.blob);
  92         if (!NT_STATUS_IS_OK(status)) {
  93                 return status;
  94         }
  95
  96         return smb2_request_destroy(req);
  97 }
  98
  99 /*
 100   sync getinfo request
 101 */
 102 NTSTATUS smb2_getinfo(struct smb2_tree *tree, TALLOC_CTX *mem_ctx,
 103                       struct smb2_getinfo *io)
 104 {
 105         struct smb2_request *req = smb2_getinfo_send(tree, io);
 106         return smb2_getinfo_recv(req, mem_ctx, io);
 107 }
 108
 109
 110 /*
 111   map a generic info level to a SMB2 info level
 112 */
 113 uint16_t smb2_getinfo_map_level(uint16_t level, uint8_t info_class)
 114 {
 115         if (info_class == SMB2_0_INFO_FILE &&
 116             level == RAW_FILEINFO_SEC_DESC) {
 117                 return SMB2_0_INFO_SECURITY;
 118         }
 119         if ((level & 0xFF) == info_class) {
 120                 return level;
 121         } else if (level > 1000) {
 122                 return ((level-1000)<<8) | info_class;
 123         }
 124         DEBUG(0,("Unable to map SMB2 info level 0x%04x of class %d\n",
 125                  level, info_class));
 126         return 0;
 127 }
 128
 129 /*
 130   level specific getinfo call - async send
 131 */
 132 struct smb2_request *smb2_getinfo_file_send(struct smb2_tree *tree, union smb_fileinfo *io)
 133 {
 134         struct smb2_getinfo b;
 135         uint16_t smb2_level = smb2_getinfo_map_level(
 136                 io->generic.level, SMB2_0_INFO_FILE);
 137
 138         if (smb2_level == 0) {
 139                 return NULL;
 140         }
 141
 142         ZERO_STRUCT(b);
 143         b.in.info_type            = smb2_level & 0xFF;
 144         b.in.info_class           = smb2_level >> 8;
 145         b.in.output_buffer_length = 0x10000;
 146         b.in.input_buffer         = data_blob_null;
 147         b.in.file.handle          = io->generic.in.file.handle;
 148
 149         if (io->generic.level == RAW_FILEINFO_SEC_DESC) {
 150                 b.in.additional_information = io->query_secdesc.in.secinfo_flags;
 151         }
 152         if (io->generic.level == RAW_FILEINFO_SMB2_ALL_EAS) {
 153                 b.in.getinfo_flags = io->all_eas.in.continue_flags;
 154         }
 155
 156         return smb2_getinfo_send(tree, &b);
 157 }
 158
 159 /*
 160   recv a getinfo reply and parse the level info
 161 */
 162 NTSTATUS smb2_getinfo_file_recv(struct smb2_request *req, TALLOC_CTX *mem_ctx,
 163                                 union smb_fileinfo *io)
 164 {
 165         struct smb2_getinfo b;
 166         NTSTATUS status;
 167
 168         status = smb2_getinfo_recv(req, mem_ctx, &b);
 169         NT_STATUS_NOT_OK_RETURN(status);
 170
 171         status = smb_raw_fileinfo_passthru_parse(&b.out.blob, mem_ctx, io->generic.level, io);
 172         data_blob_free(&b.out.blob);
 173
 174         return status;
 175 }
 176
 177 /*
 178   level specific getinfo call
 179 */
 180 NTSTATUS smb2_getinfo_file(struct smb2_tree *tree, TALLOC_CTX *mem_ctx,
 181                            union smb_fileinfo *io)
 182 {
 183         struct smb2_request *req = smb2_getinfo_file_send(tree, io);
 184         return smb2_getinfo_file_recv(req, mem_ctx, io);
 185 }
 186
 187
 188 /*
 189   level specific getinfo call - async send
 190 */
 191 struct smb2_request *smb2_getinfo_fs_send(struct smb2_tree *tree, union smb_fsinfo *io)
 192 {
 193         struct smb2_getinfo b;
 194         uint16_t smb2_level = smb2_getinfo_map_level(
 195                 io->generic.level, SMB2_0_INFO_FILESYSTEM);
 196
 197         if (smb2_level == 0) {
 198                 return NULL;
 199         }
 200
 201         ZERO_STRUCT(b);
 202         b.in.output_buffer_length = 0x10000;
 203         b.in.file.handle          = io->generic.handle;
 204         b.in.info_type            = smb2_level & 0xFF;
 205         b.in.info_class           = smb2_level >> 8;
 206
 207         return smb2_getinfo_send(tree, &b);
 208 }
 209
 210 /*
 211   recv a getinfo reply and parse the level info
 212 */
 213 NTSTATUS smb2_getinfo_fs_recv(struct smb2_request *req, TALLOC_CTX *mem_ctx,
 214                                 union smb_fsinfo *io)
 215 {
 216         struct smb2_getinfo b = {
 217                 .in = {0},
 218         };
 219         NTSTATUS status;
 220
 221         status = smb2_getinfo_recv(req, mem_ctx, &b);
 222         NT_STATUS_NOT_OK_RETURN(status);
 223
 224         status = smb_raw_fsinfo_passthru_parse(b.out.blob, mem_ctx, io->generic.level, io);
 225         data_blob_free(&b.out.blob);
 226
 227         return status;
 228 }
 229
 230 /*
 231   level specific getinfo call
 232 */
 233 NTSTATUS smb2_getinfo_fs(struct smb2_tree *tree, TALLOC_CTX *mem_ctx,
 234                            union smb_fsinfo *io)
 235 {
 236         struct smb2_request *req = smb2_getinfo_fs_send(tree, io);
 237         return smb2_getinfo_fs_recv(req, mem_ctx, io);
 238 }
 239