/*
* verify.c
*
- * Verify stream reference counts.
+ * Verify WIM files.
*/
/*
- * Copyright (C) 2012, 2013 Eric Biggers
+ * Copyright (C) 2012, 2013, 2014 Eric Biggers
*
* This file is part of wimlib, a library for working with WIM files.
*
#include "wimlib/error.h"
#include "wimlib/lookup_table.h"
#include "wimlib/metadata.h"
+#include "wimlib/progress.h"
#include "wimlib/security.h"
static int
wim->refcnts_ok = 1;
return 0;
}
+
+static int
+append_lte_to_list(struct wim_lookup_table_entry *lte, void *_list)
+{
+ list_add(<e->extraction_list, (struct list_head *)_list);
+ return 0;
+}
+
+struct verify_stream_list_ctx {
+ wimlib_progress_func_t progfunc;
+ void *progctx;
+ union wimlib_progress_info *progress;
+ u64 next_progress;
+};
+
+static int
+end_verify_stream(struct wim_lookup_table_entry *lte, int status, void *_ctx)
+{
+ struct verify_stream_list_ctx *ctx = _ctx;
+ union wimlib_progress_info *progress = ctx->progress;
+
+ if (status)
+ return status;
+
+ progress->verify_streams.completed_streams++;
+ progress->verify_streams.completed_bytes += lte->size;
+
+ /* Handle rate-limiting of progress messages */
+
+ if (progress->verify_streams.completed_bytes < ctx->next_progress)
+ return 0;
+
+ /* Time for another progress message. */
+
+ status = call_progress(ctx->progfunc, WIMLIB_PROGRESS_MSG_VERIFY_STREAMS,
+ progress, ctx->progctx);
+ if (status)
+ return status;
+
+ if (ctx->next_progress == progress->verify_streams.total_bytes) {
+ ctx->next_progress = ~(uint64_t)0;
+ return 0;
+ }
+
+ /* Send new message as soon as another 1/128 of the total has
+ * been verified. (Arbitrary number.) */
+ ctx->next_progress = progress->verify_streams.completed_bytes +
+ progress->verify_streams.total_bytes / 128;
+
+ /* ... Unless that would be more than 5000000 bytes, in which case send
+ * the next after the next 5000000 bytes. (Another arbitrary number.) */
+ if (progress->verify_streams.completed_bytes + 5000000 < ctx->next_progress)
+ ctx->next_progress = progress->verify_streams.completed_bytes + 5000000;
+
+ /* ... But always send a message as soon as we're completely
+ * done. */
+ if (progress->verify_streams.total_bytes < ctx->next_progress)
+ ctx->next_progress = progress->verify_streams.total_bytes;
+ return 0;
+}
+
+static int
+verify_image_streams_present(struct wim_image_metadata *imd,
+ struct wim_lookup_table *lookup_table)
+{
+ struct wim_inode *inode;
+ int ret;
+
+ image_for_each_inode(inode, imd) {
+ ret = inode_resolve_streams(inode, lookup_table, false);
+ if (ret)
+ return ret;
+ }
+ return 0;
+}
+
+/* API function documented in wimlib.h */
+WIMLIBAPI int
+wimlib_verify_wim(WIMStruct *wim, int verify_flags)
+{
+ int ret;
+ LIST_HEAD(stream_list);
+ union wimlib_progress_info progress;
+ struct verify_stream_list_ctx ctx;
+ struct wim_lookup_table_entry *lte;
+ struct read_stream_list_callbacks cbs = {
+ .end_stream = end_verify_stream,
+ .end_stream_ctx = &ctx,
+ };
+
+ /* Check parameters */
+
+ if (!wim)
+ return WIMLIB_ERR_INVALID_PARAM;
+
+ if (verify_flags)
+ return WIMLIB_ERR_INVALID_PARAM;
+
+ /* Verify the images */
+
+ if (wim_has_metadata(wim)) {
+
+ memset(&progress, 0, sizeof(progress));
+ progress.verify_image.wimfile = wim->filename;
+ progress.verify_image.total_images = wim->hdr.image_count;
+
+ for (int i = 1; i <= wim->hdr.image_count; i++) {
+
+ progress.verify_image.current_image = i;
+
+ ret = call_progress(wim->progfunc, WIMLIB_PROGRESS_MSG_BEGIN_VERIFY_IMAGE,
+ &progress, wim->progctx);
+ if (ret)
+ return ret;
+
+ ret = select_wim_image(wim, i);
+ if (ret)
+ return ret;
+
+ ret = verify_image_streams_present(wim_get_current_image_metadata(wim),
+ wim->lookup_table);
+ if (ret)
+ return ret;
+
+ ret = call_progress(wim->progfunc, WIMLIB_PROGRESS_MSG_END_VERIFY_IMAGE,
+ &progress, wim->progctx);
+ if (ret)
+ return ret;
+ }
+ } else {
+ WARNING("\"%"TS"\" does not contain image metadata. Skipping image verification.",
+ wim->filename);
+ }
+
+ /* Verify the streams */
+
+ for_lookup_table_entry(wim->lookup_table, append_lte_to_list, &stream_list);
+
+ memset(&progress, 0, sizeof(progress));
+
+ progress.verify_streams.wimfile = wim->filename;
+ list_for_each_entry(lte, &stream_list, extraction_list) {
+ progress.verify_streams.total_streams++;
+ progress.verify_streams.total_bytes += lte->size;
+ }
+
+ ctx.progfunc = wim->progfunc;
+ ctx.progctx = wim->progctx;
+ ctx.progress = &progress;
+ ctx.next_progress = 0;
+
+ ret = call_progress(ctx.progfunc, WIMLIB_PROGRESS_MSG_VERIFY_STREAMS,
+ ctx.progress, ctx.progctx);
+ if (ret)
+ return ret;
+
+ return read_stream_list(&stream_list,
+ offsetof(struct wim_lookup_table_entry,
+ extraction_list),
+ &cbs, VERIFY_STREAM_HASHES);
+}