New API calls isoburn_igopt_set_gpt_guid(), isoburn_igopt_get_gpt_guid()

libisoburn/isoburn.c

@@ -405,7 +405,7 @@ int isoburn_make_iso_write_opts(struct isoburn *out_o,
                                 IsoWriteOpts *wopts,
                                 int flag)
 {
- int ret, rec_mtime, new_img, lba, nwa, i;
+ int ret, rec_mtime, new_img, lba, nwa, i, guid_mode;
  struct burn_drive *out_d;
 
  new_img= flag&1;
@@ -477,6 +477,10 @@ int isoburn_make_iso_write_opts(struct isoburn *out_o,
                         opts->vol_creation_time, opts->vol_modification_time,
                         opts->vol_expiration_time, opts->vol_effective_time,
                         opts->vol_uuid);
+ guid_mode= opts->gpt_guid_mode;
+ if(opts->vol_uuid[0] == 0 && opts->gpt_guid_mode == 2)
+   guid_mode= 0;
+ iso_write_opts_set_gpt_guid(wopts, opts->gpt_guid, guid_mode);
  iso_write_opts_attach_jte(wopts, opts->libjte_handle);
  iso_write_opts_set_hfsp_serial_number(wopts, opts->hfsp_serial_number);
 
@@ -1175,6 +1179,8 @@ int isoburn_igopt_new(struct isoburn_imgen_opts **new_o, int flag)
  o->appended_as_gpt= 0;
  o->appended_as_apm= 0;
  o->part_like_isohybrid= 0;
+ memset(o->gpt_guid, 0, 16);
+ o->gpt_guid_mode= 0;
  memset(o->hfsp_serial_number, 0, 8);
  o->hfsp_block_size= 0;
  o->apm_block_size= 0;
@@ -1804,6 +1810,32 @@ int isoburn_igopt_get_part_like_isohybrid(struct isoburn_imgen_opts *opts,
 }
 
 
+int isoburn_igopt_set_gpt_guid(struct isoburn_imgen_opts *opts,
+                               uint8_t guid[16], int mode)
+{
+ if(mode < 0 || mode > 2) {
+   isoburn_msgs_submit(NULL, 0x00060000,
+                       "Unrecognized GPT disk GUID setup mode. (0 ... 2)",
+                       0, "FAILURE", 0);
+   return(0);
+ }
+ opts->gpt_guid_mode= mode;
+ if(opts->gpt_guid_mode == 1)
+    memcpy(opts->gpt_guid, guid, 16);
+ return 1;
+}
+
+
+int isoburn_igopt_get_gpt_guid(struct isoburn_imgen_opts *opts,
+                               uint8_t guid[16], int *mode)
+{
+ if(opts->gpt_guid_mode == 1)
+   memcpy(guid, opts->gpt_guid, 16);
+ *mode = opts->gpt_guid_mode;
+ return(1);
+}
+
+
 int isoburn_igopt_set_disc_label(struct isoburn_imgen_opts *opts, char *label)
 {
     strncpy(opts->ascii_disc_label, label, Libisoburn_disc_label_sizE - 1);

libisoburn/isoburn.h

@@ -710,6 +710,11 @@ struct isoburn_imgen_opts {
     */
     int part_like_isohybrid;
 
+    /* See libisoburn.h isoburn_igopt_set_gpt_guid()
+    */
+    uint8_t gpt_guid[16];
+    int gpt_guid_mode;
+
     /* Eventual name of the non-ISO aspect of the image. E.g. SUN ASCII label.
      */
     char ascii_disc_label[Libisoburn_disc_label_sizE];

libisoburn/libisoburn.h

@@ -1987,6 +1987,47 @@ int isoburn_igopt_set_part_like_isohybrid(struct isoburn_imgen_opts *opts,
 int isoburn_igopt_get_part_like_isohybrid(struct isoburn_imgen_opts *opts,
                                           int *alike);
 
+/** Control whether the emerging GPT gets a pseudo-randomly generated disk GUID
+    or whether it gets a user supplied GUID.
+    The partition GUIDs will be generated in a reproducible way by exoring a
+    little-endian 32 bit counter with the disk GUID beginning at byte offset 9.
+    @since 1.4.6
+    @param opts
+           The option set to be manipulated.
+    @param guid
+           16 bytes of user supplied GUID.
+           The upper 4 bit of guid[6] and guid[7] should bear the value 4 to
+           express the version 4 in both endiannesses. Bit 7 of byte[8] should
+           be set to 1 and bit 6 be set to 0, in order to express the RFC 4122
+           variant of GUID, where version 4 means "random".
+    @param mode
+           0 = ignore parameter guid and produce the GPT disk GUID by a
+               pseudo-random algorithm. This is the default setting.
+           1 = use parameter guid as GPT disk GUID
+           2 = ignore parameter guid and derive the GPT disk GUID from
+               parameter uuid of isoburn_igopt_set_pvd_times().
+               The 16 bytes of uuid get copied and bytes 6, 7, 8 get their
+               upper bits changed to comply to RFC 4122.
+               If no such uuid is given when ISO production starts, then
+               mode 2 defaults to mode 0.
+*/ 
+int isoburn_igopt_set_gpt_guid(struct isoburn_imgen_opts *opts,
+                               uint8_t guid[16], int mode);
+
+/** Inquire the current setting of isoburn_igopt_set_gpt_guid().
+    @since 1.4.6
+    @param opts
+           The option set to be inquired.
+    @param guid
+           Returns the current guid if current mode is 1.
+    @param mode
+           Returns the current value.
+    @return
+           <=0 = error, 1 = success
+*/
+int isoburn_igopt_get_gpt_guid(struct isoburn_imgen_opts *opts,
+                               uint8_t guid[16], int *mode);
+
 
 /** Set a name for the system area. This setting is ignored unless system area
     type 3 "SUN Disk Label" is in effect by iso_write_opts_set_system_area().

libisoburn/libisoburn.ver

@@ -36,6 +36,7 @@ isoburn_igopt_get_effective_lba;
 isoburn_igopt_get_efi_bootp;
 isoburn_igopt_get_extensions;
 isoburn_igopt_get_fifo_size;
+isoburn_igopt_get_gpt_guid;
 isoburn_igopt_get_hfsp_block_size;
 isoburn_igopt_get_hfsp_serial_number;
 isoburn_igopt_get_level;
@@ -63,6 +64,7 @@ isoburn_igopt_set_disc_label;
 isoburn_igopt_set_efi_bootp;
 isoburn_igopt_set_extensions;
 isoburn_igopt_set_fifo_size;
+isoburn_igopt_set_gpt_guid;
 isoburn_igopt_set_hfsp_block_size;
 isoburn_igopt_set_hfsp_serial_number;
 isoburn_igopt_set_level;

xorriso/xorriso_timestamp.h

@@ -1 +1 @@
-#define Xorriso_timestamP "2016.08.07.193333"
+#define Xorriso_timestamP "2016.08.12.184736"