librpc/ndr/ndr_backupkey.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    routines for top backup key protocol marshalling/unmarshalling
   5
   6    Copyright (C) Matthieu Patou 2010
   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 "librpc/gen_ndr/ndr_misc.h"
  24 #include "librpc/gen_ndr/ndr_backupkey.h"
  25 #include "librpc/gen_ndr/ndr_security.h"
  26
  27 static uint32_t backupkeyguid_to_uint(const struct GUID *guid)
  28 {
  29         struct GUID tmp;
  30         NTSTATUS status;
  31         bool match;
  32
  33         status = GUID_from_string(BACKUPKEY_RESTORE_GUID, &tmp);
  34         if (NT_STATUS_IS_OK(status)) {
  35                 match = GUID_equal(guid, &tmp);
  36                 if (match) {
  37                         return BACKUPKEY_RESTORE_GUID_INTEGER;
  38                 }
  39         }
  40
  41         status = GUID_from_string(BACKUPKEY_RETRIEVE_BACKUP_KEY_GUID, &tmp);
  42         if (NT_STATUS_IS_OK(status)) {
  43                 match = GUID_equal(guid, &tmp);
  44                 if (match) {
  45                         return BACKUPKEY_RETRIEVE_BACKUP_KEY_GUID_INTEGER;
  46                 }
  47         }
  48
  49         return BACKUPKEY_INVALID_GUID_INTEGER;
  50 }
  51
  52 _PUBLIC_ void ndr_print_bkrp_BackupKey(struct ndr_print *ndr, const char *name, int flags, const struct bkrp_BackupKey *r)
  53 {
  54         ndr_print_struct(ndr, name, "bkrp_BackupKey");
  55         if (r == NULL) { ndr_print_null(ndr); return; }
  56         ndr->depth++;
  57         if (flags & NDR_SET_VALUES) {
  58                 ndr->flags |= LIBNDR_PRINT_SET_VALUES;
  59         }
  60         if (flags & NDR_IN) {
  61                 union bkrp_data_in_blob inblob;
  62                 DATA_BLOB blob;
  63                 uint32_t level;
  64                 enum ndr_err_code ndr_err;
  65
  66                 ndr_print_struct(ndr, "in", "bkrp_BackupKey");
  67                 ndr->depth++;
  68                 ndr_print_ptr(ndr, "guidActionAgent", r->in.guidActionAgent);
  69                 ndr->depth++;
  70                 ndr_print_GUID(ndr, "guidActionAgent", r->in.guidActionAgent);
  71                 ndr->depth--;
  72
  73                 level = backupkeyguid_to_uint(r->in.guidActionAgent);
  74                 blob.data = r->in.data_in;
  75                 blob.length = r->in.data_in_len;
  76                 ndr_err = ndr_pull_union_blob(&blob, ndr, &inblob, level,
  77                                 (ndr_pull_flags_fn_t)ndr_pull_bkrp_data_in_blob);
  78
  79                 ndr_print_ptr(ndr, "data_in", r->in.data_in);
  80                 ndr->depth++;
  81                 if (NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
  82                         ndr_print_bkrp_data_in_blob(ndr, "data_in", &inblob);
  83                 } else {
  84                         ndr_print_array_uint8(ndr, "data_in", r->in.data_in, r->in.data_in_len);
  85                 }
  86                 ndr->depth--;
  87
  88                 ndr_print_uint32(ndr, "data_in_len", r->in.data_in_len);
  89                 ndr_print_uint32(ndr, "param", r->in.param);
  90                 ndr->depth--;
  91         }
  92         if (flags & NDR_OUT) {
  93                 ndr_print_struct(ndr, "out", "bkrp_BackupKey");
  94                 ndr->depth++;
  95                 ndr_print_ptr(ndr, "data_out", r->out.data_out);
  96                 ndr->depth++;
  97                 ndr_print_ptr(ndr, "data_out", *r->out.data_out);
  98                 ndr->depth++;
  99
 100                 if (*r->out.data_out) {
 101                         ndr_print_array_uint8(ndr, "data_out", *r->out.data_out, *r->out.data_out_len);
 102                 }
 103                 ndr->depth--;
 104                 ndr->depth--;
 105                 ndr_print_ptr(ndr, "data_out_len", r->out.data_out_len);
 106                 ndr->depth++;
 107                 ndr_print_uint32(ndr, "data_out_len", *r->out.data_out_len);
 108                 ndr->depth--;
 109                 ndr_print_WERROR(ndr, "result", r->out.result);
 110                 ndr->depth--;
 111         }
 112         ndr->depth--;
 113 }
 114
 115 /* We have manual push/pull because we didn't manage to do the alignment
 116  * purely in PIDL as the padding is sized so that the whole access_check_v3
 117  * struct size is a multiple of 8 (as specified in 2.2.2.3 of ms-bkrp.pdf)
 118  */
 119 _PUBLIC_ enum ndr_err_code ndr_push_bkrp_access_check_v2(struct ndr_push *ndr, int ndr_flags, const struct bkrp_access_check_v2 *r)
 120 {
 121         if (ndr_flags & NDR_SCALARS) {
 122                 size_t ofs;
 123                 size_t pad;
 124                 NDR_CHECK(ndr_push_align(ndr, 4));
 125                 NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS, 0x00000001));
 126                 NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS, r->nonce_len));
 127                 NDR_CHECK(ndr_push_array_uint8(ndr, NDR_SCALARS, r->nonce, r->nonce_len));
 128                 NDR_CHECK(ndr_push_dom_sid(ndr, NDR_SCALARS, &r->sid));
 129                 /* We articially increment the offset of 20 bytes (size of hash
 130                  * comming after the pad) so that ndr_align can determine easily
 131                  * the correct pad size to make the whole struct 8 bytes aligned
 132                  */
 133                 ofs = ndr->offset + 20;
 134                 pad = ndr_align_size(ofs, 8);
 135                 NDR_CHECK(ndr_push_zero(ndr, pad));
 136                 NDR_CHECK(ndr_push_array_uint8(ndr, NDR_SCALARS, r->hash, 20));
 137                 NDR_CHECK(ndr_push_trailer_align(ndr, 4));
 138         }
 139         if (ndr_flags & NDR_BUFFERS) {
 140         }
 141         return NDR_ERR_SUCCESS;
 142 }
 143
 144 _PUBLIC_ enum ndr_err_code ndr_pull_bkrp_access_check_v2(struct ndr_pull *ndr, int ndr_flags, struct bkrp_access_check_v2 *r)
 145 {
 146         if (ndr_flags & NDR_SCALARS) {
 147                 size_t ofs;
 148                 size_t pad;
 149                 NDR_CHECK(ndr_pull_align(ndr, 4));
 150                 NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &r->magic));
 151                 NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &r->nonce_len));
 152                 NDR_PULL_ALLOC_N(ndr, r->nonce, r->nonce_len);
 153                 NDR_CHECK(ndr_pull_array_uint8(ndr, NDR_SCALARS, r->nonce, r->nonce_len));
 154                 NDR_CHECK(ndr_pull_dom_sid(ndr, NDR_SCALARS, &r->sid));
 155                 ofs = ndr->offset + 20;
 156                 pad = ndr_align_size(ofs, 8);
 157                 NDR_CHECK(ndr_pull_advance(ndr, pad));
 158                 NDR_CHECK(ndr_pull_array_uint8(ndr, NDR_SCALARS, r->hash, 20));
 159                 NDR_CHECK(ndr_pull_trailer_align(ndr, 4));
 160         }
 161         if (ndr_flags & NDR_BUFFERS) {
 162         }
 163         return NDR_ERR_SUCCESS;
 164 }
 165
 166 /* We have manual push/pull because we didn't manage to do the alignment
 167  * purely in PIDL as the padding is sized so that the whole access_check_v3
 168  * struct size is a multiple of 16 (as specified in 2.2.2.4 of ms-bkrp.pdf)
 169  */
 170 _PUBLIC_ enum ndr_err_code ndr_push_bkrp_access_check_v3(struct ndr_push *ndr, int ndr_flags, const struct bkrp_access_check_v3 *r)
 171 {
 172         if (ndr_flags & NDR_SCALARS) {
 173                 size_t ofs;
 174                 size_t pad;
 175                 NDR_CHECK(ndr_push_align(ndr, 4));
 176                 NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS, 0x00000001));
 177                 NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS, r->nonce_len));
 178                 NDR_CHECK(ndr_push_array_uint8(ndr, NDR_SCALARS, r->nonce, r->nonce_len));
 179                 NDR_CHECK(ndr_push_dom_sid(ndr, NDR_SCALARS, &r->sid));
 180                 /* We articially increment the offset of 64 bytes (size of hash
 181                  * comming after the pad) so that ndr_align can determine easily
 182                  * the correct pad size to make the whole struct 16 bytes aligned
 183                  */
 184                 ofs = ndr->offset + 64;
 185                 pad = ndr_align_size(ofs, 16);
 186                 NDR_CHECK(ndr_push_zero(ndr, pad));
 187                 NDR_CHECK(ndr_push_array_uint8(ndr, NDR_SCALARS, r->hash, 64));
 188                 NDR_CHECK(ndr_push_trailer_align(ndr, 4));
 189         }
 190         if (ndr_flags & NDR_BUFFERS) {
 191         }
 192         return NDR_ERR_SUCCESS;
 193 }
 194
 195 _PUBLIC_ enum ndr_err_code ndr_pull_bkrp_access_check_v3(struct ndr_pull *ndr, int ndr_flags, struct bkrp_access_check_v3 *r)
 196 {
 197         if (ndr_flags & NDR_SCALARS) {
 198                 size_t ofs;
 199                 size_t pad;
 200                 NDR_CHECK(ndr_pull_align(ndr, 4));
 201                 NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &r->magic));
 202                 NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &r->nonce_len));
 203                 NDR_PULL_ALLOC_N(ndr, r->nonce, r->nonce_len);
 204                 NDR_CHECK(ndr_pull_array_uint8(ndr, NDR_SCALARS, r->nonce, r->nonce_len));
 205                 NDR_CHECK(ndr_pull_dom_sid(ndr, NDR_SCALARS, &r->sid));
 206                 ofs = ndr->offset + 64;
 207                 pad = ndr_align_size(ofs, 16);
 208                 NDR_CHECK(ndr_pull_advance(ndr, pad));
 209                 NDR_CHECK(ndr_pull_array_uint8(ndr, NDR_SCALARS, r->hash, 64));
 210                 NDR_CHECK(ndr_pull_trailer_align(ndr, 4));
 211         }
 212         if (ndr_flags & NDR_BUFFERS) {
 213         }
 214         return NDR_ERR_SUCCESS;
 215 }