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New option bits with el_torito_set_isolinux_options() and

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iso_write_opts_set_system_area() to control GRUB2 patching of
boot image and MBR
This commit is contained in:
Thomas Schmitt
2013-04-13 08:38:52 +02:00
parent eb6503a8ad
commit 337bade549
7 changed files with 109 additions and 14 deletions
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22
libisofs/libisofs.h
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@@ -2191,6 +2191,13 @@ int iso_write_opts_set_fifo_size(IsoWriteOpts *opts, size_t fifo_size);
* 1 = CHRP: A single MBR partition of type 0x96 covers the
* ISO image. Not compatible with any other feature
* which needs to have own MBR partition entries.
* bit14= Only with System area type 0 = MBR
* GRUB2 boot provisions:
* @since 1.3.0
* Patch system area at byte 92 to 99 with 512-block address + 1
* of the first boot image file. Little-endian 8-byte.
* Should be combined with options bit0.
* Will not be in effect if options bit1 is set.
* @param flag
* bit0 = invalidate any attached system area data. Same as data == NULL
* (This re-activates eventually loaded image System Area data.
@@ -3465,9 +3472,15 @@ int el_torito_get_selection_crit(ElToritoBootImage *bootimg, uint8_t crit[20]);
* @param bootimg
* The image to inquire
* @param flag
* Reserved for future usage, set to 0.
* Bitfield for control purposes:
* bit0 - bit3= mode
* 0 = inquire for classic boot info table as described in man mkisofs
* @since 0.6.32
* 1 = inquire for GRUB2 boot info as of bit9 of options of
* el_torito_set_isolinux_options()
* @since 1.3.0
* @return
* 1 = seems to contain oot info table , 0 = quite surely not
* 1 = seems to contain the inquired boot info, 0 = quite surely not
* @since 0.6.32
*/
int el_torito_seems_boot_info_table(ElToritoBootImage *bootimg, int flag);
@@ -3531,6 +3544,11 @@ int el_torito_seems_boot_info_table(ElToritoBootImage *bootimg, int flag);
* mentioned. The ISOLINUX MBR must look suitable or else an error
* event will happen at image generation time.
* @since 1.2.4
* bit9= GRUB2 boot info
* Patch the boot image file at byte 1012 with the 512-block
* address + 2. Two little endian 32-bit words. Low word first.
* This is combinable with bit0.
* @since 1.3.0
* @param flag
* Reserved for future usage, set to 0.
* @return