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, ndr_flags_type 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                         .empty._empty_ = '\0',
  63                 };
  64                 DATA_BLOB blob;
  65                 uint32_t level;
  66                 enum ndr_err_code ndr_err;
  67
  68                 ndr_print_struct(ndr, "in", "bkrp_BackupKey");
  69                 ndr->depth++;
  70                 ndr_print_ptr(ndr, "guidActionAgent", r->in.guidActionAgent);
  71                 ndr->depth++;
  72                 ndr_print_GUID(ndr, "guidActionAgent", r->in.guidActionAgent);
  73                 ndr->depth--;
  74
  75                 level = backupkeyguid_to_uint(r->in.guidActionAgent);
  76                 ndr_err = ndr_print_set_switch_value(ndr, &inblob, level);
  77                 if (unlikely(!NDR_ERR_CODE_IS_SUCCESS(ndr_err))) {      \
  78                         DEBUG(0,("ERROR: ndr_print_bkrp_BackupKey ndr_print_set_switch_value failed: %d\n", ndr_err));
  79                         return;
  80                 }
  81                 blob.data = r->in.data_in;
  82                 blob.length = r->in.data_in_len;
  83                 ndr_err = ndr_pull_union_blob(&blob, ndr, &inblob, level,
  84                                 (ndr_pull_flags_fn_t)ndr_pull_bkrp_data_in_blob);
  85
  86                 ndr_print_ptr(ndr, "data_in", r->in.data_in);
  87                 ndr->depth++;
  88                 if (NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
  89                         ndr_print_bkrp_data_in_blob(ndr, "data_in", &inblob);
  90                 } else {
  91                         ndr_print_array_uint8(ndr, "data_in", r->in.data_in, r->in.data_in_len);
  92                 }
  93                 ndr->depth--;
  94
  95                 ndr_print_uint32(ndr, "data_in_len", r->in.data_in_len);
  96                 ndr_print_uint32(ndr, "param", r->in.param);
  97                 ndr->depth--;
  98         }
  99         if (flags & NDR_OUT) {
 100                 ndr_print_struct(ndr, "out", "bkrp_BackupKey");
 101                 ndr->depth++;
 102                 ndr_print_ptr(ndr, "data_out", r->out.data_out);
 103                 ndr->depth++;
 104                 ndr_print_ptr(ndr, "data_out", *r->out.data_out);
 105                 ndr->depth++;
 106
 107                 if (*r->out.data_out) {
 108                         ndr_print_array_uint8(ndr, "data_out", *r->out.data_out, *r->out.data_out_len);
 109                 }
 110                 ndr->depth--;
 111                 ndr->depth--;
 112                 ndr_print_ptr(ndr, "data_out_len", r->out.data_out_len);
 113                 ndr->depth++;
 114                 ndr_print_uint32(ndr, "data_out_len", *r->out.data_out_len);
 115                 ndr->depth--;
 116                 ndr_print_WERROR(ndr, "result", r->out.result);
 117                 ndr->depth--;
 118         }
 119         ndr->depth--;
 120 }
 121
 122 /* We have manual push/pull because we didn't manage to do the alignment
 123  * purely in PIDL as the padding is sized so that the whole access_check_v3
 124  * struct size is a multiple of 8 (as specified in 2.2.2.3 of ms-bkrp.pdf)
 125  */
 126 _PUBLIC_ enum ndr_err_code ndr_push_bkrp_access_check_v2(struct ndr_push *ndr, ndr_flags_type ndr_flags, const struct bkrp_access_check_v2 *r)
 127 {
 128         if (ndr_flags & NDR_SCALARS) {
 129                 size_t ofs;
 130                 size_t pad;
 131                 NDR_CHECK(ndr_push_align(ndr, 4));
 132                 NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS, 0x00000001));
 133                 NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS, r->nonce_len));
 134                 NDR_CHECK(ndr_push_array_uint8(ndr, NDR_SCALARS, r->nonce, r->nonce_len));
 135                 NDR_CHECK(ndr_push_dom_sid(ndr, NDR_SCALARS, &r->sid));
 136                 /* We articially increment the offset of 20 bytes (size of hash
 137                  * coming after the pad) so that ndr_align can determine easily
 138                  * the correct pad size to make the whole struct 8 bytes aligned
 139                  */
 140                 ofs = ndr->offset + 20;
 141                 pad = ndr_align_size(ofs, 8);
 142                 NDR_CHECK(ndr_push_zero(ndr, pad));
 143                 NDR_CHECK(ndr_push_array_uint8(ndr, NDR_SCALARS, r->hash, 20));
 144                 NDR_CHECK(ndr_push_trailer_align(ndr, 4));
 145         }
 146         if (ndr_flags & NDR_BUFFERS) {
 147         }
 148         return NDR_ERR_SUCCESS;
 149 }
 150
 151 _PUBLIC_ enum ndr_err_code ndr_pull_bkrp_access_check_v2(struct ndr_pull *ndr, ndr_flags_type ndr_flags, struct bkrp_access_check_v2 *r)
 152 {
 153         if (ndr_flags & NDR_SCALARS) {
 154                 size_t ofs;
 155                 size_t pad;
 156                 NDR_CHECK(ndr_pull_align(ndr, 4));
 157                 NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &r->magic));
 158                 NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &r->nonce_len));
 159                 NDR_PULL_ALLOC_N(ndr, r->nonce, r->nonce_len);
 160                 NDR_CHECK(ndr_pull_array_uint8(ndr, NDR_SCALARS, r->nonce, r->nonce_len));
 161                 NDR_CHECK(ndr_pull_dom_sid(ndr, NDR_SCALARS, &r->sid));
 162                 ofs = ndr->offset + 20;
 163                 pad = ndr_align_size(ofs, 8);
 164                 NDR_CHECK(ndr_pull_advance(ndr, pad));
 165                 NDR_CHECK(ndr_pull_array_uint8(ndr, NDR_SCALARS, r->hash, 20));
 166                 NDR_CHECK(ndr_pull_trailer_align(ndr, 4));
 167         }
 168         if (ndr_flags & NDR_BUFFERS) {
 169         }
 170         return NDR_ERR_SUCCESS;
 171 }
 172
 173 /* We have manual push/pull because we didn't manage to do the alignment
 174  * purely in PIDL as the padding is sized so that the whole access_check_v3
 175  * struct size is a multiple of 16 (as specified in 2.2.2.4 of ms-bkrp.pdf)
 176  */
 177 _PUBLIC_ enum ndr_err_code ndr_push_bkrp_access_check_v3(struct ndr_push *ndr, ndr_flags_type ndr_flags, const struct bkrp_access_check_v3 *r)
 178 {
 179         if (ndr_flags & NDR_SCALARS) {
 180                 size_t ofs;
 181                 size_t pad;
 182                 NDR_CHECK(ndr_push_align(ndr, 4));
 183                 NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS, 0x00000001));
 184                 NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS, r->nonce_len));
 185                 NDR_CHECK(ndr_push_array_uint8(ndr, NDR_SCALARS, r->nonce, r->nonce_len));
 186                 NDR_CHECK(ndr_push_dom_sid(ndr, NDR_SCALARS, &r->sid));
 187                 /* We articially increment the offset of 64 bytes (size of hash
 188                  * coming after the pad) so that ndr_align can determine easily
 189                  * the correct pad size to make the whole struct 16 bytes aligned
 190                  */
 191                 ofs = ndr->offset + 64;
 192                 pad = ndr_align_size(ofs, 16);
 193                 NDR_CHECK(ndr_push_zero(ndr, pad));
 194                 NDR_CHECK(ndr_push_array_uint8(ndr, NDR_SCALARS, r->hash, 64));
 195                 NDR_CHECK(ndr_push_trailer_align(ndr, 4));
 196         }
 197         if (ndr_flags & NDR_BUFFERS) {
 198         }
 199         return NDR_ERR_SUCCESS;
 200 }
 201
 202 _PUBLIC_ enum ndr_err_code ndr_pull_bkrp_access_check_v3(struct ndr_pull *ndr, ndr_flags_type ndr_flags, struct bkrp_access_check_v3 *r)
 203 {
 204         if (ndr_flags & NDR_SCALARS) {
 205                 size_t ofs;
 206                 size_t pad;
 207                 NDR_CHECK(ndr_pull_align(ndr, 4));
 208                 NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &r->magic));
 209                 NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &r->nonce_len));
 210                 NDR_PULL_ALLOC_N(ndr, r->nonce, r->nonce_len);
 211                 NDR_CHECK(ndr_pull_array_uint8(ndr, NDR_SCALARS, r->nonce, r->nonce_len));
 212                 NDR_CHECK(ndr_pull_dom_sid(ndr, NDR_SCALARS, &r->sid));
 213                 ofs = ndr->offset + 64;
 214                 pad = ndr_align_size(ofs, 16);
 215                 NDR_CHECK(ndr_pull_advance(ndr, pad));
 216                 NDR_CHECK(ndr_pull_array_uint8(ndr, NDR_SCALARS, r->hash, 64));
 217                 NDR_CHECK(ndr_pull_trailer_align(ndr, 4));
 218         }
 219         if (ndr_flags & NDR_BUFFERS) {
 220         }
 221         return NDR_ERR_SUCCESS;
 222 }