]> wimlib.net Git - wimlib/blobdiff - src/integrity.c
win32_capture.c: Fix exclusion when capture path ends in slash
[wimlib] / src / integrity.c
index 350b3a202fa9dd2082fa340d70bf20bbd18d17d1..30817cda74f3c4a57338a3fdfe92dd6c7d525452 100644 (file)
@@ -34,6 +34,7 @@
 #include "wimlib/error.h"
 #include "wimlib/file_io.h"
 #include "wimlib/integrity.h"
+#include "wimlib/progress.h"
 #include "wimlib/resource.h"
 #include "wimlib/sha1.h"
 #include "wimlib/wim.h"
@@ -106,7 +107,7 @@ calculate_chunk_sha1(struct filedes *in_fd, size_t this_chunk_size,
  *     WIMLIB_ERR_READ
  *     WIMLIB_ERR_UNEXPECTED_END_OF_FILE
  */
-static int
+int
 read_integrity_table(WIMStruct *wim, u64 num_checked_bytes,
                     struct integrity_table **table_ret)
 {
@@ -145,7 +146,6 @@ read_integrity_table(WIMStruct *wim, u64 num_checked_bytes,
        return 0;
 
 invalid:
-       ERROR("Integrity table is invalid");
        return WIMLIB_ERR_INVALID_INTEGRITY_TABLE;
 }
 
@@ -170,10 +170,6 @@ invalid:
  *     If @old_table is non-NULL, the byte after the last byte that was checked
  *     in the old table.  Must be less than or equal to new_check_end.
  *
- * @progress_func:
- *     If non-NULL, a progress function that will be called after every
- *     calculated chunk.
- *
  * @integrity_table_ret:
  *     On success, a pointer to the calculated integrity table is written into
  *     this location.
@@ -189,8 +185,9 @@ calculate_integrity_table(struct filedes *in_fd,
                          off_t new_check_end,
                          const struct integrity_table *old_table,
                          off_t old_check_end,
-                         wimlib_progress_func_t progress_func,
-                         struct integrity_table **integrity_table_ret)
+                         struct integrity_table **integrity_table_ret,
+                         wimlib_progress_func_t progfunc,
+                         void *progctx)
 {
        int ret;
        size_t chunk_size = INTEGRITY_CHUNK_SIZE;
@@ -228,16 +225,17 @@ calculate_integrity_table(struct filedes *in_fd,
        u64 offset = WIM_HEADER_DISK_SIZE;
        union wimlib_progress_info progress;
 
-       if (progress_func) {
-               progress.integrity.total_bytes      = new_check_bytes;
-               progress.integrity.total_chunks     = new_num_chunks;
-               progress.integrity.completed_chunks = 0;
-               progress.integrity.completed_bytes  = 0;
-               progress.integrity.chunk_size       = chunk_size;
-               progress.integrity.filename         = NULL;
-               progress_func(WIMLIB_PROGRESS_MSG_CALC_INTEGRITY,
-                             &progress);
-       }
+       progress.integrity.total_bytes      = new_check_bytes;
+       progress.integrity.total_chunks     = new_num_chunks;
+       progress.integrity.completed_chunks = 0;
+       progress.integrity.completed_bytes  = 0;
+       progress.integrity.chunk_size       = chunk_size;
+       progress.integrity.filename         = NULL;
+
+       ret = call_progress(progfunc, WIMLIB_PROGRESS_MSG_CALC_INTEGRITY,
+                           &progress, progctx);
+       if (ret)
+               goto out_free_new_table;
 
        for (u32 i = 0; i < new_num_chunks; i++) {
                size_t this_chunk_size;
@@ -256,21 +254,24 @@ calculate_integrity_table(struct filedes *in_fd,
                        /* Calculate the SHA1 message digest of this chunk */
                        ret = calculate_chunk_sha1(in_fd, this_chunk_size,
                                                   offset, new_table->sha1sums[i]);
-                       if (ret) {
-                               FREE(new_table);
-                               return ret;
-                       }
+                       if (ret)
+                               goto out_free_new_table;
                }
                offset += this_chunk_size;
-               if (progress_func) {
-                       progress.integrity.completed_chunks++;
-                       progress.integrity.completed_bytes += this_chunk_size;
-                       progress_func(WIMLIB_PROGRESS_MSG_CALC_INTEGRITY,
-                                     &progress);
-               }
+
+               progress.integrity.completed_chunks++;
+               progress.integrity.completed_bytes += this_chunk_size;
+               ret = call_progress(progfunc, WIMLIB_PROGRESS_MSG_CALC_INTEGRITY,
+                                   &progress, progctx);
+               if (ret)
+                       goto out_free_new_table;
        }
        *integrity_table_ret = new_table;
        return 0;
+
+out_free_new_table:
+       FREE(new_table);
+       return ret;
 }
 
 /*
@@ -280,12 +281,7 @@ calculate_integrity_table(struct filedes *in_fd,
  * chunks of the file).
  *
  * This function can optionally re-use entries from an older integrity table.
- * To do this, ensure that @wim->hdr.integrity_table_reshdr is the resource
- * header for the older table (note: this is an input-output parameter), and set
- * @old_lookup_table_end to the offset of the byte directly following the last
- * byte checked by the old table.  If the old integrity table is invalid or
- * cannot be read, a warning is printed and the integrity information is
- * re-calculated.
+ * To do this, specify old_lookup_table_end and old_table.
  *
  * @wim:
  *     WIMStruct for the WIM file.  @wim->out_fd must be a seekable descriptor
@@ -305,23 +301,16 @@ calculate_integrity_table(struct filedes *in_fd,
  *     If nonzero, the offset of the byte directly following the old lookup
  *     table in the WIM.
  *
- * @progress_func
- *     If non-NULL, a progress function that will be called after every
- *     calculated chunk.
- *
- * Return values:
- *     WIMLIB_ERR_SUCCESS (0)
- *     WIMLIB_ERR_NOMEM
- *     WIMLIB_ERR_UNEXPECTED_END_OF_FILE
- *     WIMLIB_ERR_WRITE
+ * @old_table
+ *     Pointer to the old integrity table read into memory, or NULL if not
+ *     specified.
  */
 int
 write_integrity_table(WIMStruct *wim,
                      off_t new_lookup_table_end,
                      off_t old_lookup_table_end,
-                     wimlib_progress_func_t progress_func)
+                     struct integrity_table *old_table)
 {
-       struct integrity_table *old_table;
        struct integrity_table *new_table;
        int ret;
        u32 new_table_size;
@@ -332,25 +321,11 @@ write_integrity_table(WIMStruct *wim,
 
        wimlib_assert(old_lookup_table_end <= new_lookup_table_end);
 
-       old_table = NULL;
-       if (wim_has_integrity_table(wim) && old_lookup_table_end != 0) {
-               ret = read_integrity_table(wim,
-                                          old_lookup_table_end - WIM_HEADER_DISK_SIZE,
-                                          &old_table);
-               if (ret == WIMLIB_ERR_INVALID_INTEGRITY_TABLE) {
-                       WARNING("Old integrity table is invalid! "
-                               "Ignoring it");
-               } else if (ret != 0) {
-                       WARNING("Can't read old integrity table! "
-                               "Ignoring it");
-               }
-       }
-
        ret = calculate_integrity_table(&wim->out_fd, new_lookup_table_end,
                                        old_table, old_lookup_table_end,
-                                       progress_func, &new_table);
+                                       &new_table, wim->progfunc, wim->progctx);
        if (ret)
-               goto out_free_old_table;
+               return ret;
 
        new_table_size = new_table->size;
 
@@ -368,8 +343,6 @@ write_integrity_table(WIMStruct *wim,
                                             NULL,
                                             0);
        FREE(new_table);
-out_free_old_table:
-       FREE(old_table);
        DEBUG("ret=%d", ret);
        return ret;
 }
@@ -389,10 +362,6 @@ out_free_old_table:
  *     Number of bytes in the WIM that need to be checked (offset of end of the
  *     lookup table minus offset of end of the header).
  *
- * @progress_func
- *     If non-NULL, a progress function that will be called after every
- *     verified chunk.
- *
  * Returns:
  *     > 0 (WIMLIB_ERR_READ, WIMLIB_ERR_UNEXPECTED_END_OF_FILE) on error
  *     0 (WIM_INTEGRITY_OK) if the integrity was checked successfully and there
@@ -403,23 +372,25 @@ static int
 verify_integrity(struct filedes *in_fd, const tchar *filename,
                 const struct integrity_table *table,
                 u64 bytes_to_check,
-                wimlib_progress_func_t progress_func)
+                wimlib_progress_func_t progfunc, void *progctx)
 {
        int ret;
        u64 offset = WIM_HEADER_DISK_SIZE;
        u8 sha1_md[SHA1_HASH_SIZE];
        union wimlib_progress_info progress;
 
-       if (progress_func) {
-               progress.integrity.total_bytes      = bytes_to_check;
-               progress.integrity.total_chunks     = table->num_entries;
-               progress.integrity.completed_chunks = 0;
-               progress.integrity.completed_bytes  = 0;
-               progress.integrity.chunk_size       = table->chunk_size;
-               progress.integrity.filename         = filename;
-               progress_func(WIMLIB_PROGRESS_MSG_VERIFY_INTEGRITY,
-                             &progress);
-       }
+       progress.integrity.total_bytes      = bytes_to_check;
+       progress.integrity.total_chunks     = table->num_entries;
+       progress.integrity.completed_chunks = 0;
+       progress.integrity.completed_bytes  = 0;
+       progress.integrity.chunk_size       = table->chunk_size;
+       progress.integrity.filename         = filename;
+
+       ret = call_progress(progfunc, WIMLIB_PROGRESS_MSG_VERIFY_INTEGRITY,
+                           &progress, progctx);
+       if (ret)
+               return ret;
+
        for (u32 i = 0; i < table->num_entries; i++) {
                size_t this_chunk_size;
                if (i == table->num_entries - 1)
@@ -436,12 +407,13 @@ verify_integrity(struct filedes *in_fd, const tchar *filename,
                        return WIM_INTEGRITY_NOT_OK;
 
                offset += this_chunk_size;
-               if (progress_func) {
-                       progress.integrity.completed_chunks++;
-                       progress.integrity.completed_bytes += this_chunk_size;
-                       progress_func(WIMLIB_PROGRESS_MSG_VERIFY_INTEGRITY,
-                                     &progress);
-               }
+               progress.integrity.completed_chunks++;
+               progress.integrity.completed_bytes += this_chunk_size;
+
+               ret = call_progress(progfunc, WIMLIB_PROGRESS_MSG_VERIFY_INTEGRITY,
+                                   &progress, progctx);
+               if (ret)
+                       return ret;
        }
        return WIM_INTEGRITY_OK;
 }
@@ -457,10 +429,6 @@ verify_integrity(struct filedes *in_fd, const tchar *filename,
  * @wim:
  *     The WIM, opened for reading.
  *
- * @progress_func
- *     If non-NULL, a progress function that will be called after every
- *     verified chunk.
- *
  * Returns:
  *     > 0 (WIMLIB_ERR_INVALID_INTEGRITY_TABLE, WIMLIB_ERR_READ,
  *          WIMLIB_ERR_UNEXPECTED_END_OF_FILE) on error
@@ -471,7 +439,7 @@ verify_integrity(struct filedes *in_fd, const tchar *filename,
  *     information.
  */
 int
-check_wim_integrity(WIMStruct *wim, wimlib_progress_func_t progress_func)
+check_wim_integrity(WIMStruct *wim)
 {
        int ret;
        u64 bytes_to_check;
@@ -497,7 +465,7 @@ check_wim_integrity(WIMStruct *wim, wimlib_progress_func_t progress_func)
        if (ret)
                return ret;
        ret = verify_integrity(&wim->in_fd, wim->filename, table,
-                              bytes_to_check, progress_func);
+                              bytes_to_check, wim->progfunc, wim->progctx);
        FREE(table);
        return ret;
 }