/* * Samba Unix/Linux SMB client library * Distributed SMB/CIFS Server Management Utility * Local win32 eventlog interface * * Copyright (C) Guenther Deschner 2009 * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ #include "includes.h" #include "utils/net.h" /** * Dump an *evt win32 eventlog file * * @param argc Standard main() style argc. * @param argv Standard main() style argv. Initial components are already * stripped. * * @return A shell status integer (0 for success). **/ static int net_eventlog_dump(struct net_context *c, int argc, const char **argv) { int ret = -1; TALLOC_CTX *ctx = talloc_stackframe(); enum ndr_err_code ndr_err; DATA_BLOB blob; struct EVENTLOG_EVT_FILE evt; char *s; if (argc < 1 || c->display_usage) { d_fprintf(stderr, "usage: net eventlog dump <file.evt>\n"); goto done; } blob.data = (uint8_t *)file_load(argv[0], &blob.length, 0, ctx); if (!blob.data) { d_fprintf(stderr, "failed to load evt file: %s\n", argv[0]); goto done; } ndr_err = ndr_pull_struct_blob(&blob, ctx, NULL, &evt, (ndr_pull_flags_fn_t)ndr_pull_EVENTLOG_EVT_FILE); if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) { d_fprintf(stderr, "evt pull failed: %s\n", ndr_errstr(ndr_err)); goto done; } s = NDR_PRINT_STRUCT_STRING(ctx, EVENTLOG_EVT_FILE, &evt); if (s) { printf("%s\n", s); } ret = 0; done: TALLOC_FREE(ctx); return ret; } /** * Import an *evt win32 eventlog file to internal tdb representation * * @param argc Standard main() style argc. * @param argv Standard main() style argv. Initial components are already * stripped. * * @return A shell status integer (0 for success). **/ static int net_eventlog_import(struct net_context *c, int argc, const char **argv) { int ret = -1; TALLOC_CTX *ctx = talloc_stackframe(); NTSTATUS status; enum ndr_err_code ndr_err; DATA_BLOB blob; uint32_t num_records = 0; uint32_t i; ELOG_TDB *etdb = NULL; struct EVENTLOGHEADER evt_header; struct EVENTLOG_EVT_FILE evt; if (argc < 2 || c->display_usage) { d_fprintf(stderr, "usage: net eventlog import <file> <eventlog>\n"); goto done; } blob.data = (uint8_t *)file_load(argv[0], &blob.length, 0, ctx); if (!blob.data) { d_fprintf(stderr, "failed to load evt file: %s\n", argv[0]); goto done; } /* dump_data(0, blob.data, blob.length); */ ndr_err = ndr_pull_struct_blob(&blob, ctx, NULL, &evt_header, (ndr_pull_flags_fn_t)ndr_pull_EVENTLOGHEADER); if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) { d_fprintf(stderr, "evt header pull failed: %s\n", ndr_errstr(ndr_err)); goto done; } if (evt_header.Flags & ELF_LOGFILE_HEADER_WRAP) { d_fprintf(stderr, "input file is wrapped, cannot proceed\n"); goto done; } ndr_err = ndr_pull_struct_blob(&blob, ctx, NULL, &evt, (ndr_pull_flags_fn_t)ndr_pull_EVENTLOG_EVT_FILE); if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) { d_fprintf(stderr, "evt pull failed: %s\n", ndr_errstr(ndr_err)); goto done; } /* NDR_PRINT_DEBUG(EVENTLOG_EVT_FILE, &evt); */ etdb = elog_open_tdb(argv[1], false, false); if (!etdb) { d_fprintf(stderr, "can't open the eventlog TDB (%s)\n", argv[1]); goto done; } num_records = evt.hdr.CurrentRecordNumber - evt.hdr.OldestRecordNumber; for (i=0; i<num_records; i++) { uint32_t record_number; struct eventlog_Record_tdb e; status = evlog_evt_entry_to_tdb_entry(ctx, &evt.records[i], &e); if (!NT_STATUS_IS_OK(status)) { goto done; } status = evlog_push_record_tdb(ctx, ELOG_TDB_CTX(etdb), &e, &record_number); if (!NT_STATUS_IS_OK(status)) { d_fprintf(stderr, "can't write to the eventlog: %s\n", nt_errstr(status)); goto done; } } printf("wrote %d entries to tdb\n", i); ret = 0; done: elog_close_tdb(etdb, false); TALLOC_FREE(ctx); return ret; } /** * Export internal eventlog tdb representation to an *evt win32 eventlog file * * @param argc Standard main() style argc. * @param argv Standard main() style argv. Initial components are already * stripped. * * @return A shell status integer (0 for success). **/ static int net_eventlog_export(struct net_context *c, int argc, const char **argv) { int ret = -1; NTSTATUS status; TALLOC_CTX *ctx = talloc_stackframe(); enum ndr_err_code ndr_err; DATA_BLOB blob; uint32_t num_records = 0; struct EVENTLOG_EVT_FILE evt; ELOG_TDB *etdb = NULL; uint32_t count = 1; size_t endoffset = 0; if (argc < 2 || c->display_usage) { d_fprintf(stderr, "usage: net eventlog export <file> <eventlog>\n"); goto done; } etdb = elog_open_tdb(argv[1], false, true); if (!etdb) { d_fprintf(stderr, "can't open the eventlog TDB (%s)\n", argv[1]); goto done; } ZERO_STRUCT(evt); while (1) { struct eventlog_Record_tdb *r; struct EVENTLOGRECORD e; r = evlog_pull_record_tdb(ctx, etdb->tdb, count); if (!r) { break; } status = evlog_tdb_entry_to_evt_entry(ctx, r, &e); if (!NT_STATUS_IS_OK(status)) { goto done; } endoffset += ndr_size_EVENTLOGRECORD(&e, NULL, 0); ADD_TO_ARRAY(ctx, struct EVENTLOGRECORD, e, &evt.records, &num_records); count++; } evt.hdr.StartOffset = 0x30; evt.hdr.EndOffset = evt.hdr.StartOffset + endoffset; evt.hdr.CurrentRecordNumber = count; evt.hdr.OldestRecordNumber = 1; evt.hdr.MaxSize = tdb_fetch_int32(etdb->tdb, EVT_MAXSIZE); evt.hdr.Flags = 0; evt.hdr.Retention = tdb_fetch_int32(etdb->tdb, EVT_RETENTION); if (DEBUGLEVEL >= 10) { NDR_PRINT_DEBUG(EVENTLOGHEADER, &evt.hdr); } evt.eof.BeginRecord = 0x30; evt.eof.EndRecord = evt.hdr.StartOffset + endoffset; evt.eof.CurrentRecordNumber = evt.hdr.CurrentRecordNumber; evt.eof.OldestRecordNumber = evt.hdr.OldestRecordNumber; if (DEBUGLEVEL >= 10) { NDR_PRINT_DEBUG(EVENTLOGEOF, &evt.eof); } ndr_err = ndr_push_struct_blob(&blob, ctx, NULL, &evt, (ndr_push_flags_fn_t)ndr_push_EVENTLOG_EVT_FILE); if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) { d_fprintf(stderr, "evt push failed: %s\n", ndr_errstr(ndr_err)); goto done; } if (!file_save(argv[0], blob.data, blob.length)) { d_fprintf(stderr, "failed to save evt file: %s\n", argv[0]); goto done; } ret = 0; done: elog_close_tdb(etdb, false); TALLOC_FREE(ctx); return ret; } /** * 'net rpc eventlog' entrypoint. * @param argc Standard main() style argc. * @param argv Standard main() style argv. Initial components are already * stripped. **/ int net_eventlog(struct net_context *c, int argc, const char **argv) { int ret = -1; struct functable func[] = { { "dump", net_eventlog_dump, NET_TRANSPORT_LOCAL, "Dump eventlog", "net eventlog dump\n" " Dump win32 *.evt eventlog file" }, { "import", net_eventlog_import, NET_TRANSPORT_LOCAL, "Import eventlog", "net eventlog import\n" " Import win32 *.evt eventlog file" }, { "export", net_eventlog_export, NET_TRANSPORT_LOCAL, "Export eventlog", "net eventlog export\n" " Export win32 *.evt eventlog file" }, { NULL, NULL, 0, NULL, NULL } }; ret = net_run_function(c, argc, argv, "net eventlog", func); return ret; }