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 2 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, write to the Free Software
  20    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21 */
  22
  23 #include "includes.h"
  24 #include "libcli/raw/libcliraw.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
  35         req = smb2_request_init_tree(tree, SMB2_OP_GETINFO, 0x28, False, 0);
  36         if (req == NULL) return NULL;
  37
  38         /* this seems to be a bug, they use 0x29 but only send 0x28 bytes */
  39         SSVAL(req->out.body, 0x00, 0x29);
  40
  41         SSVAL(req->out.body, 0x02, io->in.level);
  42         SIVAL(req->out.body, 0x04, io->in.max_response_size);
  43         SIVAL(req->out.body, 0x08, io->in.unknown1);
  44         SIVAL(req->out.body, 0x0C, io->in.unknown2);
  45         SIVAL(req->out.body, 0x10, io->in.flags);
  46         SIVAL(req->out.body, 0x14, io->in.flags2);
  47         smb2_push_handle(req->out.body+0x18, &io->in.file.handle);
  48
  49         smb2_transport_send(req);
  50
  51         return req;
  52 }
  53
  54
  55 /*
  56   recv a getinfo reply
  57 */
  58 NTSTATUS smb2_getinfo_recv(struct smb2_request *req, TALLOC_CTX *mem_ctx,
  59                            struct smb2_getinfo *io)
  60 {
  61         NTSTATUS status;
  62
  63         if (!smb2_request_receive(req) ||
  64             smb2_request_is_error(req)) {
  65                 return smb2_request_destroy(req);
  66         }
  67
  68         SMB2_CHECK_PACKET_RECV(req, 0x08, True);
  69
  70         status = smb2_pull_o16s16_blob(&req->in, mem_ctx, req->in.body+0x02, &io->out.blob);
  71         if (!NT_STATUS_IS_OK(status)) {
  72                 return status;
  73         }
  74
  75         return smb2_request_destroy(req);
  76 }
  77
  78 /*
  79   sync getinfo request
  80 */
  81 NTSTATUS smb2_getinfo(struct smb2_tree *tree, TALLOC_CTX *mem_ctx,
  82                       struct smb2_getinfo *io)
  83 {
  84         struct smb2_request *req = smb2_getinfo_send(tree, io);
  85         return smb2_getinfo_recv(req, mem_ctx, io);
  86 }
  87
  88
  89 /*
  90   map a generic info level to a SMB2 info level
  91 */
  92 uint16_t smb2_getinfo_map_level(uint16_t level, uint8_t class)
  93 {
  94         if (class == SMB2_GETINFO_FILE &&
  95             level == RAW_FILEINFO_SEC_DESC) {
  96                 return SMB2_GETINFO_SECURITY;
  97         }
  98         if ((level & 0xFF) == class) {
  99                 return level;
 100         } else if (level > 1000) {
 101                 return ((level-1000)<<8) | class;
 102         }
 103         DEBUG(0,("Unable to map SMB2 info level 0x%04x of class %d\n", level, class));
 104         return 0;
 105 }
 106
 107 /*
 108   level specific getinfo call - async send
 109 */
 110 struct smb2_request *smb2_getinfo_file_send(struct smb2_tree *tree, union smb_fileinfo *io)
 111 {
 112         struct smb2_getinfo b;
 113         uint16_t smb2_level = smb2_getinfo_map_level(io->generic.level, SMB2_GETINFO_FILE);
 114
 115         if (smb2_level == 0) {
 116                 return NULL;
 117         }
 118
 119         ZERO_STRUCT(b);
 120         b.in.max_response_size = 0x10000;
 121         b.in.file.handle       = io->generic.in.file.handle;
 122         b.in.level             = smb2_level;
 123
 124         if (io->generic.level == RAW_FILEINFO_SEC_DESC) {
 125                 b.in.flags = io->query_secdesc.in.secinfo_flags;
 126         }
 127         if (io->generic.level == RAW_FILEINFO_SMB2_ALL_EAS) {
 128                 b.in.flags2 = io->all_eas.in.continue_flags;
 129         }
 130
 131         return smb2_getinfo_send(tree, &b);
 132 }
 133
 134 /*
 135   recv a getinfo reply and parse the level info
 136 */
 137 NTSTATUS smb2_getinfo_file_recv(struct smb2_request *req, TALLOC_CTX *mem_ctx,
 138                                 union smb_fileinfo *io)
 139 {
 140         struct smb2_getinfo b;
 141         NTSTATUS status;
 142
 143         status = smb2_getinfo_recv(req, mem_ctx, &b);
 144         NT_STATUS_NOT_OK_RETURN(status);
 145
 146         status = smb_raw_fileinfo_passthru_parse(&b.out.blob, mem_ctx, io->generic.level, io);
 147         data_blob_free(&b.out.blob);
 148
 149         return status;
 150 }
 151
 152 /*
 153   level specific getinfo call
 154 */
 155 NTSTATUS smb2_getinfo_file(struct smb2_tree *tree, TALLOC_CTX *mem_ctx,
 156                            union smb_fileinfo *io)
 157 {
 158         struct smb2_request *req = smb2_getinfo_file_send(tree, io);
 159         return smb2_getinfo_file_recv(req, mem_ctx, io);
 160 }
 161
 162
 163 /*
 164   level specific getinfo call - async send
 165 */
 166 struct smb2_request *smb2_getinfo_fs_send(struct smb2_tree *tree, union smb_fsinfo *io)
 167 {
 168         struct smb2_getinfo b;
 169         uint16_t smb2_level = smb2_getinfo_map_level(io->generic.level, SMB2_GETINFO_FS);
 170
 171         if (smb2_level == 0) {
 172                 return NULL;
 173         }
 174
 175         ZERO_STRUCT(b);
 176         b.in.max_response_size = 0x10000;
 177         b.in.file.handle       = io->generic.handle;
 178         b.in.level             = smb2_level;
 179
 180         return smb2_getinfo_send(tree, &b);
 181 }
 182
 183 /*
 184   recv a getinfo reply and parse the level info
 185 */
 186 NTSTATUS smb2_getinfo_fs_recv(struct smb2_request *req, TALLOC_CTX *mem_ctx,
 187                                 union smb_fsinfo *io)
 188 {
 189         struct smb2_getinfo b;
 190         NTSTATUS status;
 191
 192         status = smb2_getinfo_recv(req, mem_ctx, &b);
 193         NT_STATUS_NOT_OK_RETURN(status);
 194
 195         status = smb_raw_fsinfo_passthru_parse(b.out.blob, mem_ctx, io->generic.level, io);
 196         data_blob_free(&b.out.blob);
 197
 198         return status;
 199 }
 200
 201 /*
 202   level specific getinfo call
 203 */
 204 NTSTATUS smb2_getinfo_fs(struct smb2_tree *tree, TALLOC_CTX *mem_ctx,
 205                            union smb_fsinfo *io)
 206 {
 207         struct smb2_request *req = smb2_getinfo_fs_send(tree, io);
 208         return smb2_getinfo_fs_recv(req, mem_ctx, io);
 209 }
 210