Improved assessment of appended partitions

xorriso/findjob.c

@@ -1,7 +1,7 @@
 
 /* xorriso - creates, loads, manipulates and burns ISO 9660 filesystem images.
 
-   Copyright 2007-2015 Thomas Schmitt, <scdbackup@gmx.net>
+   Copyright 2007-2016 Thomas Schmitt, <scdbackup@gmx.net>
 
    Provided under GPL version 2 or later.
 
@@ -1108,6 +1108,14 @@ int Findjob_get_found_path(struct FindjoB *o, char **path, int flag)
 }
 
 
+int Findjob_get_last_data_file_block(struct FindjoB *o, uint32_t *lba,
+                                     int flag)
+{
+ *lba= o->last_data_file_block;
+ return(1);
+}
+
+
 int Findjob_get_action(struct FindjoB *o, int flag)
 {
  return(o->action);

xorriso/findjob.h

@@ -1,7 +1,7 @@
 
 /* xorriso - creates, loads, manipulates and burns ISO 9660 filesystem images.
 
-   Copyright 2007-2015 Thomas Schmitt, <scdbackup@gmx.net>
+   Copyright 2007-2016 Thomas Schmitt, <scdbackup@gmx.net>
 
    Provided under GPL version 2 or later.
 
@@ -181,6 +181,7 @@ struct FindjoB {
                  result delivered in XorrisO.find_unique_trunc_result
    56= like 54 but tolerating existing truncated names
    57= like 55 but tolerating existing truncated names
+   58= internal: last_data_file_block
  */
  int action;
  int prune;
@@ -199,6 +200,7 @@ struct FindjoB {
  off_t estim_upper_size;
  off_t estim_lower_size;
  struct FindjoB *subjob;
+ uint32_t last_data_file_block;
 
  /* Errors */
  char errmsg[4096];
@@ -365,6 +367,9 @@ int Findjob_set_found_path(struct FindjoB *o, char *path, int flag);
 
 int Findjob_get_found_path(struct FindjoB *o, char **path, int flag);
 
+int Findjob_get_last_data_file_block(struct FindjoB *o, uint32_t *lba,
+                                     int flag);
+
 #else /* Xorriso_findjob_on_expR */
 
 
@@ -442,6 +447,9 @@ int Findjob_set_found_path(struct FindjoB *o, char *path, int flag);
 
 int Findjob_get_found_path(struct FindjoB *o, char **path, int flag);
 
+int Findjob_get_last_data_file_block(struct FindjoB *o, uint32_t *lba,
+                                     int flag);
+
 #endif /* ! Xorriso_findjob_on_expR */
 
 

xorriso/iso_img.c

@@ -1527,6 +1527,31 @@ struct elto_img_par {
 };
 
 
+/* @param ptype   0= unknown, 1= gpt-basdat, 2=gpt-hfsplus, 3=EFI
+   @param flag    bit0= isohybrid
+*/
+static int Xorriso_register_eltorito_gpt(struct XorrisO *xorriso,
+                                         struct elto_img_par *et_img,
+                                         int ptype,
+                                         int *efi_boot_part, int *first_efi,
+                                         int flag)
+{
+ if(flag & 1) {
+   if(ptype == 1 || ptype == 3)
+     et_img->do_gpt_basdat= 1;
+   else if(ptype == 2)
+     et_img->do_gpt_hfsplus= 1;
+   return(1);
+ } else if(*first_efi && et_img->platform_id == 0xef) {
+   *efi_boot_part= 1;
+   return(1);
+ }
+ if(et_img->platform_id == 0xef)
+   *first_efi= 0;
+ return(0);
+}
+
+
 /* @param ptype   0= unknown, 1= gpt-basdat, 2=gpt-hfsplus, 3=EFI
    @param flag    bit0= isohybrid
 */
@@ -1536,23 +1561,15 @@ static int Xorriso_search_eltorito_path(struct XorrisO *xorriso,
                                         int *found, int *efi_boot_part,
                                         int flag)
 {
- int first_efi= 1, et_idx;
+ int first_efi= 1, et_idx, ret;
 
  for(et_idx= 0; et_idx < elto_count; et_idx++) {
    if(strcmp(et_imgs[et_idx].path, path) != 0)
  continue;
-   if(flag & 1) {
+   ret= Xorriso_register_eltorito_gpt(xorriso, et_imgs + et_idx,
-     if(ptype == 1 || ptype == 3)
+                                      ptype, efi_boot_part, &first_efi, flag);
-       et_imgs[et_idx].do_gpt_basdat= 1;
+   if(ret > 0)
-     else if(ptype == 2)
-       et_imgs[et_idx].do_gpt_hfsplus= 1;
  break;
-   } else if(first_efi && et_imgs[et_idx].platform_id == 0xef) {
-     *efi_boot_part= 1;
- break;
-   }
-   if(et_imgs[et_idx].platform_id == 0xef)
-     first_efi= 0;
  }
  *found= et_idx;
  if(et_idx < elto_count)
@@ -1561,7 +1578,51 @@ static int Xorriso_search_eltorito_path(struct XorrisO *xorriso,
 }
 
 
+static int Xorriso_search_eltorito_lba(struct XorrisO *xorriso,
+                                       struct elto_img_par *et_imgs,
+                                       int elto_count,
+                                       unsigned int lba,
+                                       int *found, int flag)
+{
+ int et_idx;
+
+ for(et_idx= 0; et_idx < elto_count; et_idx++)
+   if(et_imgs[et_idx].lba == lba)
+ break;
+ *found= et_idx;
+ if(et_idx < elto_count)
+   return(1);
+ return(0);
+}
+
+
+int Xorriso_highest_data_block(struct XorrisO *xorriso, uint32_t *high_block,
+                               int flag)
+{
+ int ret;
+ struct FindjoB *job= NULL;
+ struct stat dir_stbuf;
+
+ *high_block= 0;
+ ret= Findjob_new(&job, "/", 0);
+ if(ret <= 0) {
+   Xorriso_no_findjob(xorriso, "[internal:last_data_file_block]", 0);
+   {ret= -1; goto ex;}
+ }
+ Findjob_set_action_type(job, 58, 0, 0);
+ ret= Xorriso_findi(xorriso, job, NULL,  (off_t) 0,
+                    NULL, "/", &dir_stbuf, 0, 0);
+ if(ret <= 0)
+   goto ex;
+ Findjob_get_last_data_file_block(job, high_block, 0);
+ex:;
+ Findjob_destroy(&job, 0);
+ return(ret);
+}
+
+
 /* @param flag bit0= do not record but only count
+               bit1= as_mkisofs
 */
 static int Xorriso_scan_report_lines(struct XorrisO *xorriso,
                                      char **et_lines, int et_line_count,
@@ -1569,14 +1630,15 @@ static int Xorriso_scan_report_lines(struct XorrisO *xorriso,
                                      char **cmds, int *cmd_count, int flag)
 {
  int ret= 0, i, num_count, mkisofs, line_count, idx, et_idx, isohybrid= 0;
- int ptype, gpt_idx, j, pad;
+ int ptype, gpt_idx, j, pad, mbr_idx;
- int efi_boot_part= 0, full_sparc_part= 0, have_sparc_part= 0;
+ int efi_boot_part= 0, full_sparc_part= 0, have_sparc_part= 0, fe_dummy= 1;
  int appended_as_gpt= 0, have_prep= 0, did_sysarea= 0, cared_for_apm= 0;
  int cared_for_sparc= 0, have_hfsplus= 0;
  int have_sysarea= 0, ptable_killer, imported_iso, have_alpha_ldr_path= 0;
- int have_protective_msdos= 0;
+ int have_protective_msdos= 0, appended_partition= 0, part_like_isohybrid= 0;
  unsigned long int sa_options= 0, partno, id_tag, perms, start_cyl, num_blocks;
  unsigned long int part_status, part_type, start_block;
+ uint32_t high_block= 0;
  char name[24], *textpt, *contentpt, *buf= NULL;
  char **lines= NULL;
  double num[8];
@@ -1595,14 +1657,18 @@ static int Xorriso_scan_report_lines(struct XorrisO *xorriso,
    uint64_t start_block;
    uint64_t block_count;
    int appended;
+   int has_path;
  };
  struct mbr_par *mbrpts= NULL;
  int mbr_count= 0;
 
  struct gpt_par {
    int ptype; /* 0= unknown, 1= gpt-basdat, 2=gpt-hfsplus, 3=EFI */
+   int is_gap;
    int has_path;
    char *path;
+   uint64_t start_block;
+   uint64_t block_count;
  };
  struct gpt_par *gpts= NULL;
  int gpt_count= 0;
@@ -1672,6 +1738,12 @@ static int Xorriso_scan_report_lines(struct XorrisO *xorriso,
    }
  }
 
+ ret= Xorriso_highest_data_block(xorriso, &high_block, 0);
+ if(ret < 0)
+   goto ex;
+ if(ret == 0)
+   high_block = img_blocks - 1;
+
  if(elto_count > 0) {
    Xorriso_alloc_meM(et_imgs, struct elto_img_par, elto_count);
    for(et_idx= 0; et_idx < elto_count; et_idx++) {
@@ -1812,6 +1884,10 @@ static int Xorriso_scan_report_lines(struct XorrisO *xorriso,
      if(num_blocks > 0 && start_block + num_blocks > mbr_parts_end)
        mbr_parts_end= start_block + num_blocks; 
 
+   } else if(strcmp(name, "MBR partition path :") == 0) {
+     idx= num[0] - 1;
+     mbrpts[idx].has_path= 1;
+
    } else if(strcmp(name, "GPT type GUID      :") == 0) {
      idx= num[0] - 1;
      if(strcmp(textpt, "a2a0d0ebe5b9334487c068b6b72699c7") == 0)
@@ -1827,14 +1903,19 @@ static int Xorriso_scan_report_lines(struct XorrisO *xorriso,
      idx= num[0] - 1;
      if(img_blocks <= num[1] && num[2] > 0)
        appended_as_gpt= 1;
-
+     gpts[idx].start_block= num[1];
-     /* >>> ??? can there be independent partitions inside the image ? */;
+     gpts[idx].block_count= num[2];
 
    } else if(strcmp(name, "GPT partition path :") == 0) {
      idx= num[0] - 1;
      gpts[idx].has_path= 1;
      gpts[idx].path= textpt;
 
+   } else if(strcmp(name, "GPT partition name :") == 0) {
+     idx= num[0] - 1;
+     if(strstr(contentpt, " 470061007000") != NULL) /* "Gap"... */
+       gpts[idx].is_gap= 1;
+
    } else if(strcmp(name, "APM partition name :") == 0) {
      idx= num[0] - 1;
      if(strcmp(textpt, "HFSPLUS_Hybrid") == 0)
@@ -1855,6 +1936,9 @@ static int Xorriso_scan_report_lines(struct XorrisO *xorriso,
    }
  }
 
+ if(!have_protective_msdos)
+   appended_as_gpt= 0;
+
  /* Second pass: scan for System Area info */
  for(i= 0; i < line_count; i++) {
    buf[0]= 0;
@@ -1953,6 +2037,7 @@ static int Xorriso_scan_report_lines(struct XorrisO *xorriso,
                                imported_iso);
          if(partno >= 1 && (int) partno <= mbr_count)
            mbrpts[partno - 1].appended= 1;
+         appended_partition= 1;
        }
      } else if(part_type == 0x41 && have_prep) {
        if(mkisofs) {
@@ -2041,7 +2126,14 @@ static int Xorriso_scan_report_lines(struct XorrisO *xorriso,
        part_type= 0xef;
      else
        part_type= 0xcd;
-     if(img_blocks <= num[1] && num[2] > 0) {
+
+     if(high_block < num[1] && num[2] > 0 && !gpts[idx].is_gap) {
+       for(mbr_idx = 0; mbr_idx < mbr_count; mbr_idx++) {
+         if(mbrpts[mbr_idx].start_block == num[1] &&
+            mbrpts[mbr_idx].block_count == num[2])
+       break;
+       }
+       if(mbr_idx >= mbr_count) {
          if(appended_as_gpt == 1) {
            if(mkisofs)
              sprintf(buf, "-appended_part_as_gpt");
@@ -2054,6 +2146,29 @@ static int Xorriso_scan_report_lines(struct XorrisO *xorriso,
          Xorriso_add_intvl_adr(xorriso, buf, (uint64_t) num[1],
                                (uint64_t) (num[1] + num[2] - 1.0), "d",
                                imported_iso);
+         appended_partition= 1;
+       }
+
+       ret= Xorriso_search_eltorito_lba(xorriso, et_imgs, elto_count,
+                                        (unsigned int) (num[1] / 4.0),
+                                        &et_idx, 0);
+       if(ret > 0) {
+         if(!(et_imgs[et_idx].do_gpt_basdat ||
+              et_imgs[et_idx].do_gpt_hfsplus ||
+              part_like_isohybrid)) {
+           if(mkisofs)
+             sprintf(buf, "-part_like_isohybrid");
+           else
+             sprintf(buf, "-boot_image any part_like_isohybrid=on");
+           Xorriso_record_cmd_linE
+           buf[0]= 0;
+           part_like_isohybrid= 1;
+         }
+         /*  mark el torito for  -isohybrid-gpt-... */
+         Xorriso_register_eltorito_gpt(xorriso, et_imgs + et_idx,
+                                       gpts[idx].ptype, &efi_boot_part,
+                                       &fe_dummy, 1);
+       }
 
      } else if(gpts[idx].ptype == 3 && gpts[idx].has_path == 0 &&
                img_blocks >= num[1] + num[2] && !efi_boot_part) {
@@ -2312,6 +2427,68 @@ static int Xorriso_scan_report_lines(struct XorrisO *xorriso,
        sprintf(buf, "-boot_image any next");
      Xorriso_record_cmd_linE
    }
+   if(et_imgs[idx].path[0] == 0) {
+
+     /* >>> need way to eploit El Torito img blks : */;
+
+     /* Check whether appended partition */;
+     for(i= 0; i < mbr_count; i++)
+       if((mbrpts[i].appended || !mbrpts[i].has_path) &&
+          mbrpts[i].start_block == ((uint64_t) et_imgs[idx].lba) * 4 &&
+          (mbrpts[i].block_count == (uint64_t) et_imgs[idx].ldsiz ||
+           et_imgs[idx].ldsiz == 0 || et_imgs[idx].ldsiz == 1)) 
+     break;
+     if (i < mbr_count) {
+       if(!mbrpts[i].appended) {
+         mbrpts[i].appended= 1;
+         if(!appended_as_gpt) {
+           sprintf(buf, "-append_partition %lu 0x%lx ", (unsigned long) i + 1,
+                         (unsigned long) mbrpts[i].ptype);
+           Xorriso_add_intvl_adr(xorriso, buf,
+                                 (uint64_t) mbrpts[i].start_block,
+                                 ((uint64_t) mbrpts[i].start_block) +
+                                 mbrpts[i].block_count - 1,
+                                 "d", imported_iso);
+           Xorriso_record_cmd_linE
+           appended_partition= 1;
+           buf[0]= 0;
+         }
+       }
+       sprintf(app_pseudo_paths[idx],
+               "--interval:appended_partition_%d_start_%lus_size_%lud:all::",
+               i + 1,
+               (unsigned long) et_imgs[idx].lba,
+               (unsigned long) mbrpts[i].block_count);
+       et_imgs[idx].path= app_pseudo_paths[idx];
+     }
+     if (et_imgs[idx].path[0] == 0) {
+       for(i= 0; i < gpt_count; i++) {
+         if(have_protective_msdos && (
+            gpts[i].start_block == ((uint64_t) et_imgs[idx].lba) * 4 &&
+            (gpts[i].block_count == (uint64_t) et_imgs[idx].ldsiz ||
+            et_imgs[idx].ldsiz == 0 || et_imgs[idx].ldsiz == 1)))
+       break;
+       }
+       if (i < gpt_count) {
+         sprintf(app_pseudo_paths[idx],
+                 "--interval:appended_partition_%d_start_%lus_size_%lud:all::",
+                 i + 1,
+                 (unsigned long) et_imgs[idx].lba,
+                 (unsigned long) gpts[i].block_count);
+         et_imgs[idx].path= app_pseudo_paths[idx];
+       }
+     }
+     if (et_imgs[idx].path[0] == 0) {
+       if(!(flag & 1)) {
+         sprintf(xorriso->info_text,
+              "Cannot enable EL Torito boot image #%d because it is not a data file in the ISO filesystem",
+              idx + 1);
+         Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
+       }
+       buf[0]= 0;
+ continue;
+     }
+   }
    if(et_imgs[idx].platform_id == 0) {
      if(mkisofs)
        sprintf(buf, "-b ");
@@ -2328,36 +2505,6 @@ static int Xorriso_scan_report_lines(struct XorrisO *xorriso,
                "Cannot enable EL Torito boot image #%d because Platform Id 0x%2.2x cannot be expressed in mkisofs emulation",
                idx + 1, et_imgs[idx].platform_id);
        Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
- continue;
-     }
-   }
-   if(et_imgs[idx].path[0] == 0) {
-
-     /* >>> need way to eploit El Torito img blks : */;
-
-     /* Check whether appended partition */;
-     for(i= 0; i < mbr_count; i++)
-       if(mbrpts[i].appended &&
-          mbrpts[i].start_block == ((uint64_t) et_imgs[idx].lba) * 4 &&
-          (mbrpts[i].block_count == (uint64_t) et_imgs[idx].ldsiz ||
-           et_imgs[idx].ldsiz == 0 || et_imgs[idx].ldsiz == 1)) 
-     break;
-     if (i < mbr_count) {
-       sprintf(app_pseudo_paths[idx],
-               "--interval:appended_partition_%d_start_%lus_size_%lud:all::",
-               i + 1,
-               (unsigned long) et_imgs[idx].lba,
-               (unsigned long) mbrpts[i].block_count);
-       et_imgs[idx].path= app_pseudo_paths[idx];
-
-     } else {
-       if(!(flag & 1)) {
-         sprintf(xorriso->info_text,
-              "Cannot enable EL Torito boot image #%d because it is not a data file in the ISO filesystem",
-              idx + 1);
-         Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
-       }
-       buf[0]= 0;
  continue;
      }
    }
@@ -2453,6 +2600,14 @@ after_el_torito:
    Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
  }
 
+ if(appended_partition) {
+   if(mkisofs)
+     sprintf(buf, "-no-pad");
+   else
+     sprintf(buf, "-padding 0");
+   Xorriso_record_cmd_linE
+ }
+
  ret= 1;
 ex:
  xorriso->show_hfs_cmds= NULL;

xorriso/iso_manip.c

@@ -1,7 +1,7 @@
 
 /* xorriso - creates, loads, manipulates and burns ISO 9660 filesystem images.
 
-   Copyright 2007-2015 Thomas Schmitt, <scdbackup@gmx.net>
+   Copyright 2007-2016 Thomas Schmitt, <scdbackup@gmx.net>
 
    Provided under GPL version 2 or later.
 
@@ -2632,7 +2632,8 @@ int Xorriso_findi_action(struct XorrisO *xorriso, struct FindjoB *job,
  } else if(action == 21) { /* report_damage */
    ret= Xorriso_report_damage(xorriso, show_path, node, 0);
  } else if(action == 22) {
-   ret= Xorriso_report_lba(xorriso, show_path, node, 0);
+   ret= Xorriso_report_lba(xorriso, show_path, node,
+                           &job->last_data_file_block, 0);
  } else if(action == 23) { /* internal: memorize path of last matching node */
    ret= Findjob_set_found_path(job, show_path, 0);
  } else if(action == 24) {
@@ -2813,7 +2814,8 @@ int Xorriso_findi_action(struct XorrisO *xorriso, struct FindjoB *job,
      return(ret);
 
  } else if(action == 51) { /* report_sections */
-   ret= Xorriso_report_lba(xorriso, show_path, node, 1);
+   ret= Xorriso_report_lba(xorriso, show_path, node,
+                           &job->last_data_file_block, 1);
 
  } else if(action == 53) { /* internal: show_hfs_cmd */
    ret= Xorriso_get_blessing(xorriso, node, &bless_idx, bless_code, 0);
@@ -2874,6 +2876,10 @@ int Xorriso_findi_action(struct XorrisO *xorriso, struct FindjoB *job,
    ret= Xorriso_truncate_uniquely(xorriso, type, node, abs_path, show_path,
                                   1 | (2 * (action == 57)));
 
+ } else if(action == 58) { /* internal: last_data_file_block */
+   ret= Xorriso_report_lba(xorriso, show_path, node,
+                           &job->last_data_file_block, 2);
+
  } else { /* includes : 15 in_iso */
    Xorriso_esc_filepath(xorriso, show_path, xorriso->result_line, 0);
    strcat(xorriso->result_line, "\n");
@@ -3287,8 +3293,10 @@ int Xorriso_findi(struct XorrisO *xorriso, struct FindjoB *job,
  action= Findjob_get_action(job, 0);
  if(action<0)
    action= 0;
- if(!(flag & 1))
+ if(!(flag & 1)) {
    Xorriso_findi_headline(xorriso, job, 0);
+   job->last_data_file_block= 0;
+ }
 
  dir_node= (IsoDir *) dir_node_generic;
  if(dir_node==NULL) {

xorriso/iso_tree.c

@@ -1,7 +1,7 @@
 
 /* xorriso - creates, loads, manipulates and burns ISO 9660 filesystem images.
 
-   Copyright 2007-2014 Thomas Schmitt, <scdbackup@gmx.net>
+   Copyright 2007-2016 Thomas Schmitt, <scdbackup@gmx.net>
 
    Provided under GPL version 2 or later.
 
@@ -2459,9 +2459,10 @@ int Xorriso_file_eval_damage(struct XorrisO *xorriso, IsoNode *node,
 
 
 /* @param flag  bit0= report_sections : section size rather than total size
+                bit1= last_data_file_block : looking for highest data file block
 */
 int Xorriso_report_lba(struct XorrisO *xorriso, char *show_path,
-                       IsoNode *node, int flag)
+                       IsoNode *node, uint32_t *last_block, int flag)
 {
  int ret, *start_lbas= NULL, *end_lbas= NULL, lba_count, i;
  off_t size, *section_sizes= NULL;
@@ -2477,6 +2478,10 @@ int Xorriso_report_lba(struct XorrisO *xorriso, char *show_path,
  for(i= 0; i < lba_count; i++) {
    if(flag & 1)
      size= section_sizes[i];
+   if(flag & 2) {
+     if(end_lbas[i] > 0 && (uint32_t) end_lbas[i] > *last_block)
+       *last_block= end_lbas[i];
+   } else {
      sprintf(xorriso->result_line,
              "File data lba: %2d , %8d , %8d , %8.f , ",
              i, start_lbas[i], end_lbas[i] + 1 - start_lbas[i], (double) size);
@@ -2484,6 +2489,7 @@ int Xorriso_report_lba(struct XorrisO *xorriso, char *show_path,
      strcat(xorriso->result_line, "\n");
      Xorriso_result(xorriso, 0);
    }
+ }
  ret= 1;
 ex:;
  if(start_lbas != NULL)

xorriso/iso_tree.h

@@ -1,7 +1,7 @@
 
 /* xorriso - creates, loads, manipulates and burns ISO 9660 filesystem images.
 
-   Copyright 2007-2014 Thomas Schmitt, <scdbackup@gmx.net>
+   Copyright 2007-2016 Thomas Schmitt, <scdbackup@gmx.net>
 
    Provided under GPL version 2 or later.
 
@@ -83,7 +83,7 @@ int Xorriso_file_eval_damage(struct XorrisO *xorriso, IsoNode *node,
                              int flag);
 
 int Xorriso_report_lba(struct XorrisO *xorriso, char *show_path,
-                       IsoNode *node, int flag);
+                       IsoNode *node, uint32_t *last_block, int flag);
 
 int Xorriso_report_damage(struct XorrisO *xorriso, char *show_path,
                           IsoNode *node, int flag);

xorriso/xorriso_timestamp.h

@@ -1 +1 @@
-#define Xorriso_timestamP "2016.03.22.125444"
+#define Xorriso_timestamP "2016.04.25.100906"