s3-net: add "net eventlog import".

This allows to import a native (non-wrapped) win32 *.evt eventlog file
into our tdb eventlog representation.

Guenther

diff --git a/source3/utils/net_eventlog.c b/source3/utils/net_eventlog.c
index 79f04c5a7e25e26f711f1bf88f90bf259d4524b8..034f0612cc9aceab3c76619fe3949b56129d6f81 100644 (file)
--- a/source3/utils/net_eventlog.c
+++ b/source3/utils/net_eventlog.c
@@ -71,6 +71,101 @@ static int net_eventlog_dump(struct net_context *c, int argc,
        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;
+}
+
 /**
  * 'net rpc eventlog' entrypoint.
  * @param argc  Standard main() style argc.
@@ -91,6 +186,15 @@ int net_eventlog(struct net_context *c, int argc, const char **argv)
                        "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"
+               },
+
        { NULL, NULL, 0, NULL, NULL }
        };