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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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115
libisofs/system_area.c
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@ -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. */