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New API calls iso_image_set_hppa_palo() and iso_image_get_hppa_palo()

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This commit is contained in:
Thomas Schmitt 2014-01-14 09:43:28 +01:00
parent b9b5284f22
commit 7637d13e11
9 changed files with 357 additions and 5 deletions
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49
doc/boot_sectors.txt
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@ -33,6 +33,8 @@ PowerPC Reference Platform (PReP), for IBM PowerPC
Common Hardware Reference Platform (CHRP), for IBM PowerPC
HP-PA via PALO
Combinations of boot mechanisms:
- SYSLINUX isohybrid MBR
- SYSLINUX isohybrid for MBR, UEFI and x86-Mac
@ -947,7 +949,52 @@ in the ISO image [without causing overlapping between partitions].
------------------------------------------------------------------------------
>>> ??? HP-PA
HP-PA via PALO
for HP PA-RISC
Sources:
cdrkit-1.1.10/genisoimage/boot-hppa.c
by Steve McIntyre <steve@einval.com>
who states "Heavily inspired by palo"
There are five parameters which get encoded into the first 248 bytes of the
System Area: cmdline, bootloader, 32-bit kernel, 64-bit kernel, and ramdisk.
They are all mandatory.
While cmdline is simply a string of at most 127 characters, the other four
point to data files inside the ISO image.
All numbers are recorded big endian.
Boot sector components:
Byte Range | Value | Meaning
---------- | ---------- | ----------------------------------------------------
0 - 1 | 0x8000 | Magic
2 - 5 | "PALO" |
6 - 7 | 0x0004 | Version
| |
8 - 11 | kern32_adr | Byte address of the "HPPA 32-bit kernel" file
| | genisoimage option -hppa-kernel-32
12 - 15 | kern32_len | Byte count of the "HPPA 32-bit kernel" file
| |
16 - 19 | ramdsk_adr | Byte address of the "HPPA ramdisk" file
| | genisoimage option -hppa-ramdisk
20 - 23 | ramdsk_len | Byte count of the "HPPA ramdisk" file
| |
24 - 141 | cmdline | "Command line"
| | genisoimage option -hppa-cmdline
| |
232 - 235 | kern64_adr | Byte address of the "HPPA 64-bit kernel" file
| | genisoimage option -hppa-kernel-64
236 - 239 | kern64_len | Byte count of the "HPPA 64-bit kernel" file
| |
240 - 243 | bootld_adr | Byte address of the "HPPA bootloader" file
| | genisoimage option -hppa-bootloader
244 - 247 | bootld_len | Byte count of the "HPPA bootloader" file
| |
---------- | ---------- | ----------------------------------------------------
------------------------------------------------------------------------------

88
libisofs/image.c
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@ -85,6 +85,11 @@ int iso_image_new(const char *name, IsoImage **image)
for (i = 0; i < 15; i++)
img->mips_boot_file_paths[i] = NULL;
img->sparc_core_node = NULL;
img->hppa_cmdline= NULL;
img->hppa_bootloader= NULL;
img->hppa_kernel_32= NULL;
img->hppa_kernel_64= NULL;
img->hppa_ramdisk= NULL;
img->builder_ignore_acl = 1;
img->builder_ignore_ea = 1;
img->inode_counter = 0;
@ -141,6 +146,7 @@ void iso_image_unref(IsoImage *image)
iso_image_give_up_mips_boot(image, 0);
if (image->sparc_core_node != NULL)
iso_node_unref((IsoNode *) image->sparc_core_node);
iso_image_set_hppa_palo(image, NULL, NULL, NULL, NULL, NULL, 1);
free(image->volset_id);
free(image->volume_id);
free(image->publisher_id);
@ -859,3 +865,85 @@ int iso_image_get_sparc_core(IsoImage *img, IsoFile **sparc_core, int flag)
}
/* @param flag
bit0= Let NULL parameters free the corresponding image properties.
Else only the non-NULL parameters of this call have an effect.
*/
static int hppa_palo_set_path(IsoImage *img, char *path, char **target,
int flag)
{
int ret;
IsoNode *node;
IsoFile *file;
if (path == NULL && !(flag & 1))
return ISO_SUCCESS;
if (iso_clone_mgtd_mem(path, target, 0) < 0)
return ISO_OUT_OF_MEM;
if (path == NULL)
return ISO_SUCCESS;
ret = iso_tree_path_to_node(img, path, &node);
if (ret < 0)
return ret;
if (ret == 0) {
iso_msg_submit(img->id, ISO_BOOT_FILE_MISSING, 0,
"Cannot find in ISO image: HP-PA file '%s'", path);
return ISO_BOOT_FILE_MISSING;
}
if (iso_node_get_type(node) != LIBISO_FILE) {
iso_msg_submit(img->id, ISO_HPPA_PALO_NOTREG, 0,
"HP-PA PALO file is not a data file: '%s'", path);
return ISO_HPPA_PALO_NOTREG;
}
file = (IsoFile *) node;
if (!file->explicit_weight)
file->sort_weight = 2;
return ISO_SUCCESS;
}
/* API */
/* @param flag
Bitfield for control purposes
bit0= Let NULL parameters free the corresponding image properties.
Else only the non-NULL parameters of this call have an effect.
*/
int iso_image_set_hppa_palo(IsoImage *img, char *cmdline, char *bootloader,
char *kernel_32, char *kernel_64, char *ramdisk,
int flag)
{
int ret;
if (cmdline != NULL || (flag & 1))
if (iso_clone_mgtd_mem(cmdline, &(img->hppa_cmdline), 0) < 0)
return ISO_OUT_OF_MEM;
ret = hppa_palo_set_path(img, bootloader, &(img->hppa_bootloader),
flag & 1);
if (ret < 0)
return ret;
ret = hppa_palo_set_path(img, kernel_32, &(img->hppa_kernel_32), flag & 1);
if (ret < 0)
return ret;
ret = hppa_palo_set_path(img, kernel_64, &(img->hppa_kernel_64), flag & 1);
if (ret < 0)
return ret;
ret = hppa_palo_set_path(img, ramdisk, &(img->hppa_ramdisk), flag & 1);
if (ret < 0)
return ret;
return ISO_SUCCESS;
}
/* API */
int iso_image_get_hppa_palo(IsoImage *img, char **cmdline, char **bootloader,
char **kernel_32, char **kernel_64, char **ramdisk)
{
*cmdline = img->hppa_cmdline;
*bootloader = img->hppa_bootloader;
*kernel_32 = img->hppa_kernel_32;
*kernel_64 = img->hppa_kernel_64;
*ramdisk = img->hppa_ramdisk;
return ISO_SUCCESS;
}

10
libisofs/image.h
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@ -78,6 +78,16 @@ struct Iso_Image
*/
IsoFile *sparc_core_node;
/*
* Parameters for HP-PA PALO boot sector. cmdline is a string. The other
* four are absolute paths to data files in the ISO image.
*/
char *hppa_cmdline;
char *hppa_bootloader;
char *hppa_kernel_32;
char *hppa_kernel_64;
char *hppa_ramdisk;
/* image identifier, for message origin identifier */
int id;

75
libisofs/libisofs.h
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@ -2185,6 +2185,10 @@ int iso_write_opts_set_fifo_size(IsoWriteOpts *opts, size_t fifo_size);
* to 8.
* This will overwrite the first 512 bytes of the submitted
* data.
* 4= HP-PA PALO boot sector for HP PA-RISC
* @since 1.3.6
* Submit all five parameters of iso_image_set_hppa_palo():
* cmdline, bootloader, kernel_32, kernel_64, ramdisk
* bit8-9= Only with System area type 0 = MBR
* @since 1.0.4
* Cylinder alignment mode eventually pads the image to make it
@ -3733,6 +3737,63 @@ int iso_image_set_sparc_core(IsoImage *img, IsoFile *sparc_core, int flag);
*/
int iso_image_get_sparc_core(IsoImage *img, IsoFile **sparc_core, int flag);
/**
* Define a command line and submit the paths of four mandatory files for
* production of a HP-PA PALO boot sector for PA-RISC machines.
* The paths must lead to already existing data files in the ISO image
* which stay with these paths until image production.
*
* @param img
* The image to be manipulated.
* @param cmdline
* Up to 127 characters of command line.
* @param bootloader
* Absolute path of a data file in the ISO image.
* @param kernel_32
* Absolute path of a data file in the ISO image which serves as
* 32 bit kernel.
* @param kernel_64
* Absolute path of a data file in the ISO image which serves as
* 64 bit kernel.
* @param ramdisk
* Absolute path of a data file in the ISO image.
* @param flag
* Bitfield for control purposes
* bit0= Let NULL parameters free the corresponding image properties.
* Else only the non-NULL parameters of this call have an effect
* @return
* 1 is success , <0 means error
* @since 1.3.6
*/
int iso_image_set_hppa_palo(IsoImage *img, char *cmdline, char *bootloader,
char *kernel_32, char *kernel_64, char *ramdisk,
int flag);
/**
* Inquire the current settings of iso_image_set_hppa_palo().
* Do not free() the returned pointers.
*
* @param img
* The image to be inquired.
* @param cmdline
* Will return the command line.
* @param bootloader
* Will return the absolute path of the bootloader file.
* @param kernel_32
* Will return the absolute path of the 32 bit kernel file.
* @param kernel_64
* Will return the absolute path of the 64 bit kernel file.
* @param ramdisk
* Will return the absolute path of the RAM disk file.
* @return
* 1 is success , <0 means error
* @since 1.3.6
*/
int iso_image_get_hppa_palo(IsoImage *img, char **cmdline, char **bootloader,
char **kernel_32, char **kernel_64, char **ramdisk);
/**
* Increments the reference counting of the given node.
*
@ -4116,7 +4177,7 @@ int iso_node_get_hidden(IsoNode *node);
* @param n2
* The second node to compare.
* @return
* -1 if s1 is smaller s2 , 0 if s1 matches s2 , 1 if s1 is larger s2
* -1 if n1 is smaller n2 , 0 if n1 matches n2 , 1 if n1 is larger n2
* @param flag
* Bitfield for control purposes, unused yet, submit 0
* @since 0.6.20
@ -7608,6 +7669,18 @@ int iso_conv_name_chars(IsoWriteOpts *opts, char *name, size_t name_len,
/** File name collision during ISO image import (WARNING, HIGH, -398) */
#define ISO_IMPORT_COLLISION 0xD030FE72
/** Incomplete HP-PA PALO boot parameters (FAILURE, HIGH, -399) */
#define ISO_HPPA_PALO_INCOMPL 0xE830FE71
/** HP-PA PALO boot address exceeds 32 bit (FAILURE, HIGH, -400) */
#define ISO_HPPA_PALO_OFLOW 0xE830FE70
/** HP-PA PALO file is not a data file (FAILURE, HIGH, -401) */
#define ISO_HPPA_PALO_NOTREG 0xE830FE6F
/** HP-PA PALO command line too long (FAILURE, HIGH, -402) */
#define ISO_HPPA_PALO_CMDLEN 0xE830FE6E
/* Internal developer note:
Place new error codes directly above this comment.

2
libisofs/libisofs.ver
View File

@ -124,6 +124,8 @@ iso_image_set_boot_catalog_weight;
iso_image_set_boot_image;
iso_image_set_copyright_file_id;
iso_image_set_data_preparer_id;
iso_image_set_hppa_palo;
iso_image_get_hppa_palo;
iso_image_set_ignore_aclea;
iso_image_set_publisher_id;
iso_image_set_sparc_core;

8
libisofs/messages.c
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@ -507,6 +507,14 @@ const char *iso_error_to_msg(int errcode)
return "Filename not suitable for character set UCS-2";
case ISO_IMPORT_COLLISION:
return "File name collision during ISO image import";
case ISO_HPPA_PALO_INCOMPL:
return "Incomplete HP-PA PALO boot parameters";
case ISO_HPPA_PALO_OFLOW:
return "HP-PA PALO boot address exceeds 32 bit";
case ISO_HPPA_PALO_NOTREG:
return "HP-PA PALO file is not a data file";
case ISO_HPPA_PALO_CMDLEN:
return "HP-PA PALO command line too long";
default:
return "Unknown error";
}

115
libisofs/system_area.c
View File

@ -1,6 +1,6 @@
/*
* Copyright (c) 2008 Vreixo Formoso
* Copyright (c) 2010 - 2013 Thomas Schmitt
* Copyright (c) 2010 - 2014 Thomas Schmitt
*
* This file is part of the libisofs project; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version 2
@ -765,6 +765,115 @@ static int make_sun_disk_label(Ecma119Image *t, uint8_t *buf, int flag)
}
static int hppa_palo_get_filepar(Ecma119Image *t, char *path,
uint32_t *adr, uint32_t *len, int flag)
{
int ret;
IsoNode *iso_node;
Ecma119Node *ecma_node;
off_t adr64;
ret = boot_nodes_from_iso_path(t, path,
&iso_node, &ecma_node, "HP-PA PALO boot file", 0);
if (ret < 0)
return ret;
if (iso_node_get_type(iso_node) != LIBISO_FILE) {
iso_msg_submit(t->image->id, ISO_HPPA_PALO_NOTREG, 0,
"HP-PA PALO file is not a data file");
return ISO_HPPA_PALO_NOTREG;
}
adr64 = ((off_t) 2048) * (off_t) ecma_node->info.file->sections[0].block;
if (adr64 > 0xffffffff) {
iso_msg_submit(t->image->id, ISO_HPPA_PALO_OFLOW, 0,
"HP-PA PALO boot address exceeds 32 bit");
return ISO_HPPA_PALO_OFLOW;
}
*adr = adr64;
*len = ecma_node->info.file->sections[0].size;
return ISO_SUCCESS;
}
/**
* Write HP-PA PALO boot sector. See doc/boot_sectors.txt
*
* learned from cdrkit-1.1.10/genisoimage/boot-hppa.c
* by Steve McIntyre <steve@einval.com>
* who states "Heavily inspired by palo"
*/
static int make_hppa_palo_sector(Ecma119Image *t, uint8_t *buf, int flag)
{
int ret;
IsoImage *img;
uint32_t adr, len;
/* Bytes 256 to 32767 may come from image or external file */
memset(buf, 0, 256);
img = t->image;
if (img->hppa_cmdline == NULL && img->hppa_bootloader == NULL &&
img->hppa_kernel_32 == NULL && img->hppa_kernel_64 &&
img->hppa_ramdisk == NULL)
return ISO_SUCCESS;
if (img->hppa_cmdline == NULL || img->hppa_bootloader == NULL ||
img->hppa_kernel_32 == NULL || img->hppa_kernel_64 == NULL ||
img->hppa_ramdisk == NULL) {
iso_msg_submit(img->id, ISO_HPPA_PALO_INCOMPL, 0,
"Incomplete HP-PA PALO boot parameters");
return ISO_HPPA_PALO_INCOMPL;
}
/* Magic */
iso_msb(buf + 0, 0x8000, 2);
/* Name of boot loader */
memcpy(buf + 2, "PALO", 4);
/* Version */
iso_msb(buf + 6, 0x0004, 2);
/* Byte address and byte count of the "HPPA 32-bit kernel" file
*/
ret = hppa_palo_get_filepar(t, img->hppa_kernel_32, &adr, &len, 0);
if (ret < 0)
return ret;
iso_msb(buf + 8, adr, 4);
iso_msb(buf + 12, len, 4);
/* Byte address and byte count of the "HPPA ramdisk" file
*/
ret = hppa_palo_get_filepar(t, img->hppa_ramdisk, &adr, &len, 0);
if (ret < 0)
return ret;
iso_msb(buf + 16, adr, 4);
iso_msb(buf + 20, len, 4);
/* "Command line" */
if (strlen(img->hppa_cmdline) > 127) {
iso_msg_submit(img->id, ISO_HPPA_PALO_CMDLEN, 0,
"HP-PA PALO command line too long");
return ISO_HPPA_PALO_CMDLEN;
}
memcpy(buf + 24, img->hppa_cmdline, strlen(img->hppa_cmdline) + 1);
/* Byte address and byte count of the "HPPA 64-bit kernel" file
*/
ret = hppa_palo_get_filepar(t, img->hppa_kernel_64, &adr, &len, 0);
if (ret < 0)
return ret;
iso_msb(buf + 232, adr, 4);
iso_msb(buf + 236, len, 4);
/* Byte address and byte count of the "HPPA bootloader" file
*/
ret = hppa_palo_get_filepar(t, img->hppa_bootloader, &adr, &len, 0);
if (ret < 0)
return ret;
iso_msb(buf + 240, adr, 4);
iso_msb(buf + 244, len, 4);
return ISO_SUCCESS;
}
/* Convenience frontend for iso_register_apm_entry().
name and type are 0-terminated strings.
*/
@ -1589,6 +1698,10 @@ int iso_write_system_area(Ecma119Image *t, uint8_t *buf)
ret = make_sun_disk_label(t, buf, 0);
if (ret != ISO_SUCCESS)
return ret;
} else if (sa_type == 4) {
ret = make_hppa_palo_sector(t, buf, 0);
if (ret != ISO_SUCCESS)
return ret;
} else if ((t->opts->partition_offset > 0 || will_append) &&
sa_type == 0 && t->mbr_req_count == 0) {
/* Write a simple partition table. */

7
libisofs/util.c
View File

@ -2255,3 +2255,10 @@ int iso_clone_mem(char *in, char **out, size_t size)
}
int iso_clone_mgtd_mem(char *in, char **out, size_t size)
{
if (*out != NULL)
free(*out);
return iso_clone_mem(in, out, size);
}

4
libisofs/util.h
View File

@ -614,6 +614,10 @@ void *iso_alloc_mem(size_t size, size_t count, int flag);
*/
int iso_clone_mem(char *in, char **out, size_t size);
/* Like iso_clone_mem but first freeing *out if not NULL
*/
int iso_clone_mgtd_mem(char *in, char **out, size_t size);
/* ------------------------------------------------------------------------- */