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
  36         req = smb2_request_init_tree(tree, SMB2_OP_GETINFO, 0x28, true,
  37                                      io->in.blob.length);
  38         if (req == NULL) return NULL;
  39
  40         SCVAL(req->out.body, 0x02, io->in.info_type);
  41         SCVAL(req->out.body, 0x03, io->in.info_class);
  42         SIVAL(req->out.body, 0x04, io->in.output_buffer_length);
  43         SIVAL(req->out.body, 0x0C, io->in.reserved);
  44         SIVAL(req->out.body, 0x08, io->in.input_buffer_length);
  45         SIVAL(req->out.body, 0x10, io->in.additional_information);
  46         SIVAL(req->out.body, 0x14, io->in.getinfo_flags);
  47         smb2_push_handle(req->out.body+0x18, &io->in.file.handle);
  48
  49         /* this blob is used for quota queries */
  50         status = smb2_push_o32s32_blob(&req->out, 0x08, io->in.blob);
  51         if (!NT_STATUS_IS_OK(status)) {
  52                 talloc_free(req);
  53                 return NULL;
  54         }
  55         smb2_transport_send(req);
  56
  57         return req;
  58 }
  59
  60
  61 /*
  62   recv a getinfo reply
  63 */
  64 NTSTATUS smb2_getinfo_recv(struct smb2_request *req, TALLOC_CTX *mem_ctx,
  65                            struct smb2_getinfo *io)
  66 {
  67         NTSTATUS status;
  68
  69         if (!smb2_request_receive(req) ||
  70             smb2_request_is_error(req)) {
  71                 return smb2_request_destroy(req);
  72         }
  73
  74         SMB2_CHECK_PACKET_RECV(req, 0x08, true);
  75
  76         status = smb2_pull_o16s16_blob(&req->in, mem_ctx, req->in.body+0x02, &io->out.blob);
  77         if (!NT_STATUS_IS_OK(status)) {
  78                 return status;
  79         }
  80
  81         return smb2_request_destroy(req);
  82 }
  83
  84 /*
  85   sync getinfo request
  86 */
  87 NTSTATUS smb2_getinfo(struct smb2_tree *tree, TALLOC_CTX *mem_ctx,
  88                       struct smb2_getinfo *io)
  89 {
  90         struct smb2_request *req = smb2_getinfo_send(tree, io);
  91         return smb2_getinfo_recv(req, mem_ctx, io);
  92 }
  93
  94
  95 /*
  96   map a generic info level to a SMB2 info level
  97 */
  98 uint16_t smb2_getinfo_map_level(uint16_t level, uint8_t info_class)
  99 {
 100         if (info_class == SMB2_GETINFO_FILE &&
 101             level == RAW_FILEINFO_SEC_DESC) {
 102                 return SMB2_GETINFO_SECURITY;
 103         }
 104         if ((level & 0xFF) == info_class) {
 105                 return level;
 106         } else if (level > 1000) {
 107                 return ((level-1000)<<8) | info_class;
 108         }
 109         DEBUG(0,("Unable to map SMB2 info level 0x%04x of class %d\n",
 110                  level, info_class));
 111         return 0;
 112 }
 113
 114 /*
 115   level specific getinfo call - async send
 116 */
 117 struct smb2_request *smb2_getinfo_file_send(struct smb2_tree *tree, union smb_fileinfo *io)
 118 {
 119         struct smb2_getinfo b;
 120         uint16_t smb2_level = smb2_getinfo_map_level(io->generic.level, SMB2_GETINFO_FILE);
 121
 122         if (smb2_level == 0) {
 123                 return NULL;
 124         }
 125
 126         ZERO_STRUCT(b);
 127         b.in.info_type            = smb2_level & 0xFF;
 128         b.in.info_class           = smb2_level >> 8;
 129         b.in.output_buffer_length = 0x10000;
 130         b.in.input_buffer_length  = 0;
 131         b.in.file.handle          = io->generic.in.file.handle;
 132
 133         if (io->generic.level == RAW_FILEINFO_SEC_DESC) {
 134                 b.in.additional_information = io->query_secdesc.in.secinfo_flags;
 135         }
 136         if (io->generic.level == RAW_FILEINFO_SMB2_ALL_EAS) {
 137                 b.in.getinfo_flags = io->all_eas.in.continue_flags;
 138         }
 139
 140         return smb2_getinfo_send(tree, &b);
 141 }
 142
 143 /*
 144   recv a getinfo reply and parse the level info
 145 */
 146 NTSTATUS smb2_getinfo_file_recv(struct smb2_request *req, TALLOC_CTX *mem_ctx,
 147                                 union smb_fileinfo *io)
 148 {
 149         struct smb2_getinfo b;
 150         NTSTATUS status;
 151
 152         status = smb2_getinfo_recv(req, mem_ctx, &b);
 153         NT_STATUS_NOT_OK_RETURN(status);
 154
 155         status = smb_raw_fileinfo_passthru_parse(&b.out.blob, mem_ctx, io->generic.level, io);
 156         data_blob_free(&b.out.blob);
 157
 158         return status;
 159 }
 160
 161 /*
 162   level specific getinfo call
 163 */
 164 NTSTATUS smb2_getinfo_file(struct smb2_tree *tree, TALLOC_CTX *mem_ctx,
 165                            union smb_fileinfo *io)
 166 {
 167         struct smb2_request *req = smb2_getinfo_file_send(tree, io);
 168         return smb2_getinfo_file_recv(req, mem_ctx, io);
 169 }
 170
 171
 172 /*
 173   level specific getinfo call - async send
 174 */
 175 struct smb2_request *smb2_getinfo_fs_send(struct smb2_tree *tree, union smb_fsinfo *io)
 176 {
 177         struct smb2_getinfo b;
 178         uint16_t smb2_level = smb2_getinfo_map_level(io->generic.level, SMB2_GETINFO_FS);
 179
 180         if (smb2_level == 0) {
 181                 return NULL;
 182         }
 183
 184         ZERO_STRUCT(b);
 185         b.in.output_buffer_length = 0x10000;
 186         b.in.file.handle          = io->generic.handle;
 187         b.in.info_type            = smb2_level & 0xFF;
 188         b.in.info_class           = smb2_level >> 8;
 189
 190         return smb2_getinfo_send(tree, &b);
 191 }
 192
 193 /*
 194   recv a getinfo reply and parse the level info
 195 */
 196 NTSTATUS smb2_getinfo_fs_recv(struct smb2_request *req, TALLOC_CTX *mem_ctx,
 197                                 union smb_fsinfo *io)
 198 {
 199         struct smb2_getinfo b;
 200         NTSTATUS status;
 201
 202         status = smb2_getinfo_recv(req, mem_ctx, &b);
 203         NT_STATUS_NOT_OK_RETURN(status);
 204
 205         status = smb_raw_fsinfo_passthru_parse(b.out.blob, mem_ctx, io->generic.level, io);
 206         data_blob_free(&b.out.blob);
 207
 208         return status;
 209 }
 210
 211 /*
 212   level specific getinfo call
 213 */
 214 NTSTATUS smb2_getinfo_fs(struct smb2_tree *tree, TALLOC_CTX *mem_ctx,
 215                            union smb_fsinfo *io)
 216 {
 217         struct smb2_request *req = smb2_getinfo_fs_send(tree, io);
 218         return smb2_getinfo_fs_recv(req, mem_ctx, io);
 219 }
 220