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                 ndr_err = ndr_print_set_switch_value(ndr, &inblob, level);
  75                 if (unlikely(!NDR_ERR_CODE_IS_SUCCESS(ndr_err))) {      \
  76                         DEBUG(0,("ERROR: ndr_print_bkrp_BackupKey ndr_print_set_switch_value failed: %d\n", ndr_err));
  77                         return;
  78                 }
  79                 blob.data = r->in.data_in;
  80                 blob.length = r->in.data_in_len;
  81                 ndr_err = ndr_pull_union_blob(&blob, ndr, &inblob, level,
  82                                 (ndr_pull_flags_fn_t)ndr_pull_bkrp_data_in_blob);
  83
  84                 ndr_print_ptr(ndr, "data_in", r->in.data_in);
  85                 ndr->depth++;
  86                 if (NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
  87                         ndr_print_bkrp_data_in_blob(ndr, "data_in", &inblob);
  88                 } else {
  89                         ndr_print_array_uint8(ndr, "data_in", r->in.data_in, r->in.data_in_len);
  90                 }
  91                 ndr->depth--;
  92
  93                 ndr_print_uint32(ndr, "data_in_len", r->in.data_in_len);
  94                 ndr_print_uint32(ndr, "param", r->in.param);
  95                 ndr->depth--;
  96         }
  97         if (flags & NDR_OUT) {
  98                 ndr_print_struct(ndr, "out", "bkrp_BackupKey");
  99                 ndr->depth++;
 100                 ndr_print_ptr(ndr, "data_out", r->out.data_out);
 101                 ndr->depth++;
 102                 ndr_print_ptr(ndr, "data_out", *r->out.data_out);
 103                 ndr->depth++;
 104
 105                 if (*r->out.data_out) {
 106                         ndr_print_array_uint8(ndr, "data_out", *r->out.data_out, *r->out.data_out_len);
 107                 }
 108                 ndr->depth--;
 109                 ndr->depth--;
 110                 ndr_print_ptr(ndr, "data_out_len", r->out.data_out_len);
 111                 ndr->depth++;
 112                 ndr_print_uint32(ndr, "data_out_len", *r->out.data_out_len);
 113                 ndr->depth--;
 114                 ndr_print_WERROR(ndr, "result", r->out.result);
 115                 ndr->depth--;
 116         }
 117         ndr->depth--;
 118 }
 119
 120 /* We have manual push/pull because we didn't manage to do the alignment
 121  * purely in PIDL as the padding is sized so that the whole access_check_v3
 122  * struct size is a multiple of 8 (as specified in 2.2.2.3 of ms-bkrp.pdf)
 123  */
 124 _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)
 125 {
 126         if (ndr_flags & NDR_SCALARS) {
 127                 size_t ofs;
 128                 size_t pad;
 129                 NDR_CHECK(ndr_push_align(ndr, 4));
 130                 NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS, 0x00000001));
 131                 NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS, r->nonce_len));
 132                 NDR_CHECK(ndr_push_array_uint8(ndr, NDR_SCALARS, r->nonce, r->nonce_len));
 133                 NDR_CHECK(ndr_push_dom_sid(ndr, NDR_SCALARS, &r->sid));
 134                 /* We articially increment the offset of 20 bytes (size of hash
 135                  * comming after the pad) so that ndr_align can determine easily
 136                  * the correct pad size to make the whole struct 8 bytes aligned
 137                  */
 138                 ofs = ndr->offset + 20;
 139                 pad = ndr_align_size(ofs, 8);
 140                 NDR_CHECK(ndr_push_zero(ndr, pad));
 141                 NDR_CHECK(ndr_push_array_uint8(ndr, NDR_SCALARS, r->hash, 20));
 142                 NDR_CHECK(ndr_push_trailer_align(ndr, 4));
 143         }
 144         if (ndr_flags & NDR_BUFFERS) {
 145         }
 146         return NDR_ERR_SUCCESS;
 147 }
 148
 149 _PUBLIC_ enum ndr_err_code ndr_pull_bkrp_access_check_v2(struct ndr_pull *ndr, int ndr_flags, struct bkrp_access_check_v2 *r)
 150 {
 151         if (ndr_flags & NDR_SCALARS) {
 152                 size_t ofs;
 153                 size_t pad;
 154                 NDR_CHECK(ndr_pull_align(ndr, 4));
 155                 NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &r->magic));
 156                 NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &r->nonce_len));
 157                 NDR_PULL_ALLOC_N(ndr, r->nonce, r->nonce_len);
 158                 NDR_CHECK(ndr_pull_array_uint8(ndr, NDR_SCALARS, r->nonce, r->nonce_len));
 159                 NDR_CHECK(ndr_pull_dom_sid(ndr, NDR_SCALARS, &r->sid));
 160                 ofs = ndr->offset + 20;
 161                 pad = ndr_align_size(ofs, 8);
 162                 NDR_CHECK(ndr_pull_advance(ndr, pad));
 163                 NDR_CHECK(ndr_pull_array_uint8(ndr, NDR_SCALARS, r->hash, 20));
 164                 NDR_CHECK(ndr_pull_trailer_align(ndr, 4));
 165         }
 166         if (ndr_flags & NDR_BUFFERS) {
 167         }
 168         return NDR_ERR_SUCCESS;
 169 }
 170
 171 /* We have manual push/pull because we didn't manage to do the alignment
 172  * purely in PIDL as the padding is sized so that the whole access_check_v3
 173  * struct size is a multiple of 16 (as specified in 2.2.2.4 of ms-bkrp.pdf)
 174  */
 175 _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)
 176 {
 177         if (ndr_flags & NDR_SCALARS) {
 178                 size_t ofs;
 179                 size_t pad;
 180                 NDR_CHECK(ndr_push_align(ndr, 4));
 181                 NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS, 0x00000001));
 182                 NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS, r->nonce_len));
 183                 NDR_CHECK(ndr_push_array_uint8(ndr, NDR_SCALARS, r->nonce, r->nonce_len));
 184                 NDR_CHECK(ndr_push_dom_sid(ndr, NDR_SCALARS, &r->sid));
 185                 /* We articially increment the offset of 64 bytes (size of hash
 186                  * comming after the pad) so that ndr_align can determine easily
 187                  * the correct pad size to make the whole struct 16 bytes aligned
 188                  */
 189                 ofs = ndr->offset + 64;
 190                 pad = ndr_align_size(ofs, 16);
 191                 NDR_CHECK(ndr_push_zero(ndr, pad));
 192                 NDR_CHECK(ndr_push_array_uint8(ndr, NDR_SCALARS, r->hash, 64));
 193                 NDR_CHECK(ndr_push_trailer_align(ndr, 4));
 194         }
 195         if (ndr_flags & NDR_BUFFERS) {
 196         }
 197         return NDR_ERR_SUCCESS;
 198 }
 199
 200 _PUBLIC_ enum ndr_err_code ndr_pull_bkrp_access_check_v3(struct ndr_pull *ndr, int ndr_flags, struct bkrp_access_check_v3 *r)
 201 {
 202         if (ndr_flags & NDR_SCALARS) {
 203                 size_t ofs;
 204                 size_t pad;
 205                 NDR_CHECK(ndr_pull_align(ndr, 4));
 206                 NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &r->magic));
 207                 NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &r->nonce_len));
 208                 NDR_PULL_ALLOC_N(ndr, r->nonce, r->nonce_len);
 209                 NDR_CHECK(ndr_pull_array_uint8(ndr, NDR_SCALARS, r->nonce, r->nonce_len));
 210                 NDR_CHECK(ndr_pull_dom_sid(ndr, NDR_SCALARS, &r->sid));
 211                 ofs = ndr->offset + 64;
 212                 pad = ndr_align_size(ofs, 16);
 213                 NDR_CHECK(ndr_pull_advance(ndr, pad));
 214                 NDR_CHECK(ndr_pull_array_uint8(ndr, NDR_SCALARS, r->hash, 64));
 215                 NDR_CHECK(ndr_pull_trailer_align(ndr, 4));
 216         }
 217         if (ndr_flags & NDR_BUFFERS) {
 218         }
 219         return NDR_ERR_SUCCESS;
 220 }