source3/rpcclient/cmd_eventlog.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    RPC pipe client
   4
   5    Copyright (C) Günther Deschner 2009
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #include "includes.h"
  22 #include "rpcclient.h"
  23
  24 static NTSTATUS get_eventlog_handle(struct rpc_pipe_client *cli,
  25                                     TALLOC_CTX *mem_ctx,
  26                                     const char *log,
  27                                     struct policy_handle *handle)
  28 {
  29         NTSTATUS status;
  30         struct eventlog_OpenUnknown0 unknown0;
  31         struct lsa_String logname, servername;
  32
  33         unknown0.unknown0 = 0x005c;
  34         unknown0.unknown1 = 0x0001;
  35
  36         init_lsa_String(&logname, log);
  37         init_lsa_String(&servername, NULL);
  38
  39         status = rpccli_eventlog_OpenEventLogW(cli, mem_ctx,
  40                                                &unknown0,
  41                                                &logname,
  42                                                &servername,
  43                                                0x00000001, /* major */
  44                                                0x00000001, /* minor */
  45                                                handle);
  46         if (!NT_STATUS_IS_OK(status)) {
  47                 return status;
  48         }
  49
  50         return NT_STATUS_OK;
  51 }
  52
  53 static NTSTATUS cmd_eventlog_readlog(struct rpc_pipe_client *cli,
  54                                      TALLOC_CTX *mem_ctx,
  55                                      int argc,
  56                                      const char **argv)
  57 {
  58         NTSTATUS status;
  59         struct policy_handle handle;
  60
  61         uint32_t flags = EVENTLOG_BACKWARDS_READ |
  62                          EVENTLOG_SEQUENTIAL_READ;
  63         uint32_t offset = 0;
  64         uint32_t number_of_bytes = 0;
  65         uint8_t *data = NULL;
  66         uint32_t sent_size = 0;
  67         uint32_t real_size = 0;
  68
  69         if (argc < 2 || argc > 4) {
  70                 printf("Usage: %s logname [offset]\n", argv[0]);
  71                 return NT_STATUS_OK;
  72         }
  73
  74         if (argc >= 3) {
  75                 offset = atoi(argv[2]);
  76         }
  77
  78         status = get_eventlog_handle(cli, mem_ctx, argv[1], &handle);
  79         if (!NT_STATUS_IS_OK(status)) {
  80                 return status;
  81         }
  82
  83         while (1) {
  84                 status = rpccli_eventlog_ReadEventLogW(cli, mem_ctx,
  85                                                        &handle,
  86                                                        flags,
  87                                                        offset,
  88                                                        number_of_bytes,
  89                                                        data,
  90                                                        &sent_size,
  91                                                        &real_size);
  92                 if (NT_STATUS_EQUAL(status, NT_STATUS_BUFFER_TOO_SMALL) &&
  93                     real_size > 0 ) {
  94                         number_of_bytes = real_size;
  95                         data = talloc_array(mem_ctx, uint8_t, real_size);
  96                         continue;
  97                 }
  98
  99                 number_of_bytes = 0;
 100
 101                 if (!NT_STATUS_IS_OK(status)) {
 102                         goto done;
 103                 }
 104
 105                 {
 106                         enum ndr_err_code ndr_err;
 107                         DATA_BLOB blob;
 108                         struct eventlog_Record rec;
 109
 110                         blob = data_blob_const(data, sent_size);
 111
 112                         ndr_err = ndr_pull_struct_blob_all(&blob, mem_ctx, NULL,
 113                                                            &rec,
 114                                                            (ndr_pull_flags_fn_t)ndr_pull_eventlog_Record);
 115                         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 116                                 status = ndr_map_error2ntstatus(ndr_err);
 117                                 goto done;
 118                         }
 119
 120                         NDR_PRINT_DEBUG(eventlog_Record, &rec);
 121                 }
 122
 123                 offset++;
 124         }
 125
 126  done:
 127         rpccli_eventlog_CloseEventLog(cli, mem_ctx, &handle);
 128
 129         return status;
 130 }
 131
 132 static NTSTATUS cmd_eventlog_numrecords(struct rpc_pipe_client *cli,
 133                                         TALLOC_CTX *mem_ctx,
 134                                         int argc,
 135                                         const char **argv)
 136 {
 137         NTSTATUS status;
 138         struct policy_handle handle;
 139         uint32_t number = 0;
 140
 141         if (argc != 2) {
 142                 printf("Usage: %s logname\n", argv[0]);
 143                 return NT_STATUS_OK;
 144         }
 145
 146         status = get_eventlog_handle(cli, mem_ctx, argv[1], &handle);
 147         if (!NT_STATUS_IS_OK(status)) {
 148                 return status;
 149         }
 150
 151         status = rpccli_eventlog_GetNumRecords(cli, mem_ctx,
 152                                                &handle,
 153                                                &number);
 154         if (!NT_STATUS_IS_OK(status)) {
 155                 goto done;
 156         }
 157
 158         printf("number of records: %d\n", number);
 159
 160  done:
 161         rpccli_eventlog_CloseEventLog(cli, mem_ctx, &handle);
 162
 163         return status;
 164 }
 165
 166 static NTSTATUS cmd_eventlog_oldestrecord(struct rpc_pipe_client *cli,
 167                                           TALLOC_CTX *mem_ctx,
 168                                           int argc,
 169                                           const char **argv)
 170 {
 171         NTSTATUS status;
 172         struct policy_handle handle;
 173         uint32_t oldest_entry = 0;
 174
 175         if (argc != 2) {
 176                 printf("Usage: %s logname\n", argv[0]);
 177                 return NT_STATUS_OK;
 178         }
 179
 180         status = get_eventlog_handle(cli, mem_ctx, argv[1], &handle);
 181         if (!NT_STATUS_IS_OK(status)) {
 182                 return status;
 183         }
 184
 185         status = rpccli_eventlog_GetOldestRecord(cli, mem_ctx,
 186                                                  &handle,
 187                                                  &oldest_entry);
 188         if (!NT_STATUS_IS_OK(status)) {
 189                 goto done;
 190         }
 191
 192         printf("oldest entry: %d\n", oldest_entry);
 193
 194  done:
 195         rpccli_eventlog_CloseEventLog(cli, mem_ctx, &handle);
 196
 197         return status;
 198 }
 199
 200 struct cmd_set eventlog_commands[] = {
 201         { "EVENTLOG" },
 202         { "eventlog_readlog",           RPC_RTYPE_NTSTATUS,     cmd_eventlog_readlog,           NULL,   &ndr_table_eventlog.syntax_id,  NULL,   "Read Eventlog", "" },
 203         { "eventlog_numrecord",         RPC_RTYPE_NTSTATUS,     cmd_eventlog_numrecords,        NULL,   &ndr_table_eventlog.syntax_id,  NULL,   "Get number of records", "" },
 204         { "eventlog_oldestrecord",      RPC_RTYPE_NTSTATUS,     cmd_eventlog_oldestrecord,      NULL,   &ndr_table_eventlog.syntax_id,  NULL,   "Get oldest record", "" },
 205         { NULL }
 206 };