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libisofs/libisofs/image.c

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/*
* Copyright (c) 2007 Vreixo Formoso
* Copyright (c) 2009 - 2024 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
* or later as published by the Free Software Foundation.
* See COPYING file for details.
*/
#ifdef HAVE_CONFIG_H
#include "../config.h"
#endif
#include "libisofs.h"
#include "image.h"
#include "node.h"
#include "messages.h"
#include "eltorito.h"
#include "system_area.h"
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
int iso_imported_sa_new(struct iso_imported_sys_area **boots, int flag)
{
struct iso_imported_sys_area *b;
*boots = NULL;
b = calloc(1, sizeof(struct iso_imported_sys_area));
if (b == NULL)
return ISO_OUT_OF_MEM;
b->mbr_req = NULL;
b->apm_req = NULL;
b->gpt_req = NULL;
b->gpt_backup_comments = NULL;
b->mips_boot_file_paths = NULL;
b->mips_vd_entries = NULL;
b->sparc_disc_label = NULL;
b->sparc_core_node = NULL;
b->sparc_core_node_path = NULL;
b->sparc_entries = NULL;
b->hppa_cmdline = NULL;
b->hppa_bootloader = NULL;
b->hppa_kernel_32 = NULL;
b->hppa_kernel_64 = NULL;
b->hppa_ramdisk = NULL;
b->alpha_boot_image = NULL;
*boots = b;
return 1;
}
int iso_imported_sa_unref(struct iso_imported_sys_area **boots, int flag)
{
int i;
struct iso_imported_sys_area *b;
b = *boots;
if (b == NULL)
return 2;
if (b->refcount > 0)
b->refcount--;
if (b->refcount > 0)
return 2;
if (b->mbr_req != NULL) {
for (i = 0; i < b->mbr_req_count; i++) {
if (b->mbr_req[i] != NULL)
LIBISO_FREE_MEM(b->mbr_req[i]->image_path);
LIBISO_FREE_MEM(b->mbr_req[i]);
}
LIBISO_FREE_MEM(b->mbr_req);
}
if (b->apm_req != NULL) {
for (i = 0; i < b->apm_req_count; i++) {
if (b->apm_req[i] != NULL)
LIBISO_FREE_MEM(b->apm_req[i]->image_path);
LIBISO_FREE_MEM(b->apm_req[i]);
}
LIBISO_FREE_MEM(b->apm_req);
}
if (b->gpt_req != NULL) {
for (i = 0; i < b->gpt_req_count; i++) {
if (b->gpt_req[i] != NULL)
LIBISO_FREE_MEM(b->gpt_req[i]->image_path);
LIBISO_FREE_MEM(b->gpt_req[i]);
}
LIBISO_FREE_MEM(b->gpt_req);
}
LIBISO_FREE_MEM(b->gpt_backup_comments);
if (b->mips_boot_file_paths != NULL) {
for (i = 0; i < b->num_mips_boot_files; i++)
LIBISO_FREE_MEM(b->mips_boot_file_paths[i]);
LIBISO_FREE_MEM(b->mips_boot_file_paths);
}
if (b->mips_vd_entries != NULL) {
for (i = 0; i < b->num_mips_boot_files; i++)
LIBISO_FREE_MEM(b->mips_vd_entries[i]);
LIBISO_FREE_MEM(b->mips_vd_entries);
}
LIBISO_FREE_MEM(b->mipsel_boot_file_path);
LIBISO_FREE_MEM(b->sparc_disc_label);
if (b->sparc_core_node != NULL)
iso_node_unref((IsoNode *) b->sparc_core_node);
LIBISO_FREE_MEM(b->sparc_core_node_path);
LIBISO_FREE_MEM(b->sparc_entries);
LIBISO_FREE_MEM(b->hppa_cmdline);
LIBISO_FREE_MEM(b->hppa_bootloader);
LIBISO_FREE_MEM(b->hppa_kernel_32);
LIBISO_FREE_MEM(b->hppa_kernel_64);
LIBISO_FREE_MEM(b->hppa_ramdisk);
LIBISO_FREE_MEM(b->alpha_boot_image);
LIBISO_FREE_MEM(b);
*boots = NULL;
return 1;
}
/**
* Create a new image, empty.
*
* The image will be owned by you and should be unref() when no more needed.
*
* @param name
* Name of the image. This will be used as volset_id and volume_id.
* @param image
* Location where the image pointer will be stored.
* @return
* 1 success, < 0 error
*/
int iso_image_new(const char *name, IsoImage **image)
{
int res, i;
IsoImage *img;
if (image == NULL) {
return ISO_NULL_POINTER;
}
img = calloc(1, sizeof(IsoImage));
if (img == NULL) {
return ISO_OUT_OF_MEM;
}
/* local filesystem will be used by default */
res = iso_local_filesystem_new(&(img->fs));
if (res < 0) {
free(img);
return ISO_OUT_OF_MEM;
}
/* use basic builder as default */
res = iso_node_basic_builder_new(&(img->builder));
if (res < 0) {
iso_filesystem_unref(img->fs);
free(img);
return ISO_OUT_OF_MEM;
}
/* fill image fields */
res = iso_node_new_root(&img->root);
if (res < 0) {
iso_node_builder_unref(img->builder);
iso_filesystem_unref(img->fs);
free(img);
return res;
}
img->refcount = 1;
img->id = iso_message_id++;
if (name != NULL) {
img->volset_id = strdup(name);
img->volume_id = strdup(name);
}
memset(img->application_use, 0, 512);
img->system_area_data = NULL;
img->system_area_options = 0;
img->num_mips_boot_files = 0;
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->alpha_boot_image = NULL;
img->import_src = NULL;
img->builder_ignore_acl = 1;
img->builder_ignore_ea = 1;
img->truncate_mode = 1;
img->truncate_length = LIBISOFS_NODE_NAME_MAX;
img->truncate_buffer[0] = 0;
img->inode_counter = 0;
img->used_inodes = NULL;
img->used_inodes_start = 0;
img->checksum_start_lba = 0;
img->checksum_end_lba = 0;
img->checksum_idx_count = 0;
img->checksum_array = NULL;
img->generator_is_running = 0;
for (i = 0; i < ISO_HFSPLUS_BLESS_MAX; i++)
img->hfsplus_blessed[i] = NULL;
img->collision_warnings = 0;
img->imported_sa_info = NULL;
img->blind_on_local_get_attrs = 0;
img->do_deeper_tree_inspection = 0;
img->tree_loaded = 0;
img->rr_loaded = 0;
img->tree_compliance = NULL;
*image = img;
return ISO_SUCCESS;
}
/**
* Increments the reference counting of the given image.
*/
void iso_image_ref(IsoImage *image)
{
++image->refcount;
}
/**
* Decrements the reference counting of the given image.
* If it reaches 0, the image is free, together with its tree nodes (whether
* their refcount reach 0 too, of course).
*/
void iso_image_unref(IsoImage *image)
{
int nexcl, i;
if (--image->refcount == 0) {
/* we need to free the image */
if (image->user_data_free != NULL) {
/* free attached data */
image->user_data_free(image->user_data);
}
for (nexcl = 0; nexcl < image->nexcludes; ++nexcl) {
free(image->excludes[nexcl]);
}
free(image->excludes);
for (i = 0; i < ISO_HFSPLUS_BLESS_MAX; i++)
if (image->hfsplus_blessed[i] != NULL)
iso_node_unref(image->hfsplus_blessed[i]);
iso_node_unref((IsoNode*)image->root);
iso_node_builder_unref(image->builder);
iso_filesystem_unref(image->fs);
el_torito_boot_catalog_free(image->bootcat);
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);
if (image->alpha_boot_image != NULL)
free(image->alpha_boot_image);
if (image->import_src != NULL)
iso_data_source_unref(image->import_src);
free(image->volset_id);
free(image->volume_id);
free(image->publisher_id);
free(image->data_preparer_id);
free(image->system_id);
free(image->application_id);
free(image->copyright_file_id);
free(image->abstract_file_id);
free(image->biblio_file_id);
free(image->creation_time);
free(image->modification_time);
free(image->expiration_time);
free(image->effective_time);
if (image->used_inodes != NULL)
free(image->used_inodes);
if (image->system_area_data != NULL)
free(image->system_area_data);
iso_image_free_checksums(image, 0);
iso_imported_sa_unref(&(image->imported_sa_info), 0);
if (image->tree_compliance != NULL)
iso_write_opts_free(image->tree_compliance);
free(image);
}
}
int iso_image_free_checksums(IsoImage *image, int flag)
{
image->checksum_start_lba = 0;
image->checksum_end_lba = 0;
image->checksum_idx_count = 0;
if (image->checksum_array != NULL)
free(image->checksum_array);
image->checksum_array = NULL;
return 1;
}
/**
* Attach user defined data to the image. Use this if your application needs
* to store addition info together with the IsoImage. If the image already
* has data attached, the old data will be freed.
*
* @param data
* Pointer to application defined data that will be attached to the
* image. You can pass NULL to remove any already attached data.
* @param give_up
* Function that will be called when the image does not need the data
* any more. It receives the data pointer as an argumente, and eventually
* causes data to be free. It can be NULL if you don't need it.
*/
int iso_image_attach_data(IsoImage *image, void *data, void (*give_up)(void*))
{
if (image == NULL) {
return ISO_NULL_POINTER;
}
if (image->user_data != NULL) {
/* free previously attached data */
if (image->user_data_free != NULL) {
image->user_data_free(image->user_data);
}
image->user_data = NULL;
image->user_data_free = NULL;
}
if (data != NULL) {
image->user_data = data;
image->user_data_free = give_up;
}
return ISO_SUCCESS;
}
/**
* The the data previously attached with iso_image_attach_data()
*/
void *iso_image_get_attached_data(IsoImage *image)
{
return image->user_data;
}
IsoDir *iso_image_get_root(const IsoImage *image)
{
return image->root;
}
void iso_image_set_volset_id(IsoImage *image, const char *volset_id)
{
free(image->volset_id);
image->volset_id = strdup(volset_id);
}
const char *iso_image_get_volset_id(const IsoImage *image)
{
if (image->volset_id == NULL)
return "";
return image->volset_id;
}
void iso_image_set_volume_id(IsoImage *image, const char *volume_id)
{
free(image->volume_id);
image->volume_id = strdup(volume_id);
}
const char *iso_image_get_volume_id(const IsoImage *image)
{
if (image->volume_id == NULL)
return "";
return image->volume_id;
}
void iso_image_set_publisher_id(IsoImage *image, const char *publisher_id)
{
free(image->publisher_id);
image->publisher_id = strdup(publisher_id);
}
const char *iso_image_get_publisher_id(const IsoImage *image)
{
if (image->publisher_id == NULL)
return "";
return image->publisher_id;
}
void iso_image_set_data_preparer_id(IsoImage *image,
const char *data_preparer_id)
{
free(image->data_preparer_id);
image->data_preparer_id = strdup(data_preparer_id);
}
const char *iso_image_get_data_preparer_id(const IsoImage *image)
{
if (image->data_preparer_id == NULL)
return "";
return image->data_preparer_id;
}
void iso_image_set_system_id(IsoImage *image, const char *system_id)
{
free(image->system_id);
image->system_id = strdup(system_id);
}
const char *iso_image_get_system_id(const IsoImage *image)
{
if (image->system_id == NULL)
return "";
return image->system_id;
}
void iso_image_set_application_id(IsoImage *image, const char *application_id)
{
free(image->application_id);
image->application_id = strdup(application_id);
}
const char *iso_image_get_application_id(const IsoImage *image)
{
if (image->application_id == NULL)
return "";
return image->application_id;
}
void iso_image_set_copyright_file_id(IsoImage *image,
const char *copyright_file_id)
{
free(image->copyright_file_id);
image->copyright_file_id = strdup(copyright_file_id);
}
const char *iso_image_get_copyright_file_id(const IsoImage *image)
{
if (image->copyright_file_id == NULL)
return "";
return image->copyright_file_id;
}
void iso_image_set_abstract_file_id(IsoImage *image,
const char *abstract_file_id)
{
free(image->abstract_file_id);
image->abstract_file_id = strdup(abstract_file_id);
}
const char *iso_image_get_abstract_file_id(const IsoImage *image)
{
if (image->abstract_file_id == NULL)
return "";
return image->abstract_file_id;
}
void iso_image_set_biblio_file_id(IsoImage *image, const char *biblio_file_id)
{
free(image->biblio_file_id);
image->biblio_file_id = strdup(biblio_file_id);
}
const char *iso_image_get_biblio_file_id(const IsoImage *image)
{
if (image->biblio_file_id == NULL)
return "";
return image->biblio_file_id;
}
int iso_image_set_pvd_times(IsoImage *image,
char *creation_time, char *modification_time,
char *expiration_time, char *effective_time)
{
if (creation_time == NULL || modification_time == NULL ||
expiration_time == NULL || effective_time == NULL)
return ISO_NULL_POINTER;
image->creation_time = calloc(18, 1); /* Surely including a trailing 0 */
image->modification_time = calloc(18, 1);
image->expiration_time = calloc(18, 1);
image->effective_time = calloc(18, 1);
if (image->creation_time == NULL || image->modification_time == NULL ||
image->expiration_time == NULL || image->effective_time == NULL)
return ISO_OUT_OF_MEM;
/* (If the string is too short, a non-zero timezone will not be stored) */
strncpy(image->creation_time, creation_time, 17);
strncpy(image->modification_time, modification_time, 17);
strncpy(image->expiration_time, expiration_time, 17);
strncpy(image->effective_time, effective_time, 17);
return ISO_SUCCESS;
}
int iso_image_get_pvd_times(IsoImage *image,
char **creation_time, char **modification_time,
char **expiration_time, char **effective_time)
{
if (image->creation_time == NULL || image->modification_time == NULL ||
image->expiration_time == NULL || image->effective_time == NULL)
return ISO_NULL_POINTER;
*creation_time = image->creation_time;
*modification_time = image->modification_time;
*expiration_time = image->expiration_time;
*effective_time = image->effective_time;
return ISO_SUCCESS;
}
void iso_image_set_app_use(IsoImage *image, const char *app_use_data,
int count)
{
if (count < 0)
count= 0;
else if(count > 512)
count= 512;
if (count > 0)
memcpy(image->application_use, app_use_data, count);
if (count < 512)
memset(image->application_use + count, 0, 512 - count);
}
int iso_image_get_msg_id(IsoImage *image)
{
return image->id;
}
int iso_image_get_system_area(IsoImage *img, char system_area_data[32768],
int *options, int flag)
{
*options = img->system_area_options;
if (img->system_area_data == NULL)
return 0;
memcpy(system_area_data, img->system_area_data, 32768);
return 1;
}
static
int dir_update_size(IsoImage *image, IsoDir *dir)
{
IsoNode *pos;
int ret;
#ifdef Libisofs_update_sizes_abortablE
char *path= NULL;
IsoStream *base_stream;
int cancel_ret, ret;
uint32_t lba;
#endif
pos = dir->children;
while (pos) {
if (pos->type == LIBISO_FILE) {
ret = iso_stream_update_size(ISO_FILE(pos)->stream);
} else if (pos->type == LIBISO_DIR) {
/* recurse */
ret = dir_update_size(image, ISO_DIR(pos));
#ifdef Libisofs_update_sizes_abortablE
if (ret == ISO_CANCELED)
return ret; /* Message already issued by dir_update_size */
#endif
} else {
ret = 1;
}
#ifdef Libisofs_update_sizes_abortablE
/* This would report error and abort according to severity threshold.
But it is desirable to let the update_size crawler continue
its work after e.g. a file has vanished from hard disk.
So normally this macro case should be disabled.
*/
if (ret < 0) {
cancel_ret = iso_msg_submit(image->id, ret, 0, NULL);
path = iso_tree_get_node_path(pos);
if (path != NULL) {
iso_msg_submit(image->id, ret, 0,
"ISO path : %s", path);
free(path);
}
/* Report source path with streams which do not come from
the loaded ISO filesystem */
if (pos->type == LIBISO_FILE &&
iso_node_get_old_image_lba(pos, &lba, 0) == 0) {
base_stream = iso_stream_get_input_stream(
ISO_FILE(pos)->stream, 1);
if (base_stream == NULL)
base_stream = ISO_FILE(pos)->stream;
path = iso_stream_get_source_path(base_stream, 0);
if (path != NULL) {
iso_msg_submit(image->id, ret, 0,
"Local path: %s", path);
free(path);
}
}
if (cancel_ret < 0)
return cancel_ret; /* cancel due error threshold */
}
#else
if (ret < 0)
ret = 1; /* ignore error */
#endif /* ! Libisofs_update_sizes_abortablE */
pos = pos->next;
}
return ISO_SUCCESS;
}
int iso_image_update_sizes(IsoImage *image)
{
if (image == NULL) {
return ISO_NULL_POINTER;
}
return dir_update_size(image, image->root);
}
void iso_image_set_ignore_aclea(IsoImage *image, int what)
{
image->builder_ignore_acl = (what & 1);
image->builder_ignore_ea = !!(what & 2);
image->builder_take_all_ea = !!(what & 8);
}
int iso_image_get_ignore_aclea(IsoImage *image)
{
return image->builder_ignore_acl |
(image->builder_ignore_ea << 1) |
(image->builder_take_all_ea << 3);
}
static
int img_register_ino(IsoImage *image, IsoNode *node, int flag)
{
int ret;
ino_t ino;
unsigned int fs_id;
dev_t dev_id;
ret = iso_node_get_id(node, &fs_id, &dev_id, &ino, 1);
if (ret < 0)
return ret;
if (ret > 0 && ino >= image->used_inodes_start &&
ino <= image->used_inodes_start + (ISO_USED_INODE_RANGE - 1)) {
/* without -1 : rollover hazard on 32 bit */
image->used_inodes[(ino - image->used_inodes_start) / 8]
|= (1 << (ino % 8));
}
return 1;
}
/* Collect the bitmap of used inode numbers in the range of
_ImageFsData.used_inodes_start + ISO_USED_INODE_RANGE
@param flag bit0= recursion is active
*/
int img_collect_inos(IsoImage *image, IsoDir *dir, int flag)
{
int ret, register_dir = 1;
IsoDirIter *iter = NULL;
IsoNode *node;
IsoDir *subdir;
if (dir == NULL)
dir = image->root;
if (image->used_inodes == NULL) {
image->used_inodes = calloc(ISO_USED_INODE_RANGE / 8, 1);
if (image->used_inodes == NULL)
return ISO_OUT_OF_MEM;
} else if(!(flag & 1)) {
memset(image->used_inodes, 0, ISO_USED_INODE_RANGE / 8);
} else {
register_dir = 0;
}
if (register_dir) {
node = (IsoNode *) dir;
ret = img_register_ino(image, node, 0);
if (ret < 0)
return ret;
}
ret = iso_dir_get_children(dir, &iter);
if (ret < 0)
return ret;
while (iso_dir_iter_next(iter, &node) == 1 ) {
ret = img_register_ino(image, node, 0);
if (ret < 0)
goto ex;
if (iso_node_get_type(node) == LIBISO_DIR) {
subdir = (IsoDir *) node;
ret = img_collect_inos(image, subdir, flag | 1);
if (ret < 0)
goto ex;
}
}
ret = 1;
ex:;
if (iter != NULL)
iso_dir_iter_free(iter);
return ret;
}
/**
* A global counter for Rock Ridge inode numbers in the ISO image filesystem.
*
* On image import it gets maxed by the eventual inode numbers from PX
* entries. Up to the first 32 bit rollover it simply increments the counter.
* After the first rollover it uses a look ahead bitmap which gets filled
* by a full tree traversal. It covers the next inode numbers to come
* (somewhere between 1 and ISO_USED_INODE_RANGE which is quite many)
* and advances when being exhausted.
* @param image The image where the number shall be used
* @param flag bit0= reset count (Caution: image must get new inos then)
* @return
* Since 0 is used as default and considered self-unique,
* the value 0 should only be returned in case of error.
*/
uint32_t img_give_ino_number(IsoImage *image, int flag)
{
int ret;
uint64_t new_ino, ino_idx;
static uint64_t limit = 0xffffffff;
if (flag & 1) {
image->inode_counter = 0;
if (image->used_inodes != NULL)
free(image->used_inodes);
image->used_inodes = NULL;
image->used_inodes_start = 0;
}
new_ino = ((uint64_t) image->inode_counter) + 1;
if (image->used_inodes == NULL) {
if (new_ino > 0 && new_ino <= limit) {
image->inode_counter = (uint32_t) new_ino;
return image->inode_counter;
}
}
/* Look for free number in used territory */
while (1) {
if (new_ino <= 0 || new_ino > limit ||
new_ino >= image->used_inodes_start + ISO_USED_INODE_RANGE ) {
/* Collect a bitmap of used inode numbers ahead */
image->used_inodes_start += ISO_USED_INODE_RANGE;
if (image->used_inodes_start > 0xffffffff ||
image->used_inodes_start <= 0)
image->used_inodes_start = 0;
ret = img_collect_inos(image, NULL, 0);
if (ret < 0)
goto return_result; /* >>> need error return value */
new_ino = image->used_inodes_start + !image->used_inodes_start;
}
ino_idx = (new_ino - image->used_inodes_start) / 8;
if (!(image->used_inodes[ino_idx] & (1 << (new_ino % 8)))) {
image->used_inodes[ino_idx] |= (1 << (new_ino % 8));
break;
}
new_ino++;
}
return_result:;
image->inode_counter = new_ino;
return image->inode_counter;
}
/* @param flag bit0= overwrite any ino, else only ino == 0
bit1= install inode with non-data, non-directory files
bit2= install inode with directories
*/
static
int img_update_ino(IsoImage *image, IsoNode *node, int flag)
{
int ret;
ino_t ino;
unsigned int fs_id;
dev_t dev_id;
ret = iso_node_get_id(node, &fs_id, &dev_id, &ino, 1);
if (ret < 0)
return ret;
if (ret == 0)
ino = 0;
if (((flag & 1) || ino == 0) &&
(iso_node_get_type(node) == LIBISO_FILE || (flag & (2 | 4))) &&
((flag & 4) || iso_node_get_type(node) != LIBISO_DIR)) {
ret = iso_node_set_unique_id(node, image, 0);
if (ret < 0)
return ret;
}
return 1;
}
/* @param flag bit0= overwrite any ino, else only ino == 0
bit1= install inode with non-data, non-directory files
bit2= install inode with directories
bit3= with bit2: install inode on parameter dir
*/
int img_make_inos(IsoImage *image, IsoDir *dir, int flag)
{
int ret;
IsoDirIter *iter = NULL;
IsoNode *node;
IsoDir *subdir;
if (flag & 8) {
node = (IsoNode *) dir;
ret = img_update_ino(image, node, flag & 7);
if (ret < 0)
goto ex;
}
ret = iso_dir_get_children(dir, &iter);
if (ret < 0)
return ret;
while (iso_dir_iter_next(iter, &node) == 1) {
ret = img_update_ino(image, node, flag & 7);
if (ret < 0)
goto ex;
if (iso_node_get_type(node) == LIBISO_DIR) {
subdir = (IsoDir *) node;
ret = img_make_inos(image, subdir, flag & ~8);
if (ret < 0)
goto ex;
}
}
ret = 1;
ex:;
if (iter != NULL)
iso_dir_iter_free(iter);
return ret;
}
/* API */
int iso_image_get_session_md5(IsoImage *image, uint32_t *start_lba,
uint32_t *end_lba, char md5[16], int flag)
{
if (image->checksum_array == NULL || image->checksum_idx_count < 1)
return 0;
*start_lba = image->checksum_start_lba;
*end_lba = image->checksum_end_lba;
memcpy(md5, image->checksum_array, 16);
return ISO_SUCCESS;
}
int iso_image_set_checksums(IsoImage *image, char *checksum_array,
uint32_t start_lba, uint32_t end_lba,
uint32_t idx_count, int flag)
{
iso_image_free_checksums(image, 0);
image->checksum_array = checksum_array;
image->checksum_start_lba = start_lba;
image->checksum_end_lba = end_lba;
image->checksum_idx_count = idx_count;
return 1;
}
int iso_image_generator_is_running(IsoImage *image)
{
return image->generator_is_running;
}
/* API */
int iso_image_add_mips_boot_file(IsoImage *image, char *path, int flag)
{
if (image->num_mips_boot_files >= 15)
return ISO_BOOT_TOO_MANY_MIPS;
image->mips_boot_file_paths[image->num_mips_boot_files] = strdup(path);
if (image->mips_boot_file_paths[image->num_mips_boot_files] == NULL)
return ISO_OUT_OF_MEM;
image->num_mips_boot_files++;
return ISO_SUCCESS;
}
/* API */
int iso_image_get_mips_boot_files(IsoImage *image, char *paths[15], int flag)
{
int i;
for (i = 0; i < image->num_mips_boot_files; i++)
paths[i] = image->mips_boot_file_paths[i];
for (; i < 15; i++)
paths[i] = NULL;
return image->num_mips_boot_files;
}
/* API */
int iso_image_give_up_mips_boot(IsoImage *image, int flag)
{
int i;
for (i = 0; i < image->num_mips_boot_files; i++)
if (image->mips_boot_file_paths[i] != NULL) {
free(image->mips_boot_file_paths[i]);
image->mips_boot_file_paths[i] = NULL;
}
image->num_mips_boot_files = 0;
return ISO_SUCCESS;
}
static void unset_blessing(IsoImage *img, unsigned int idx)
{
if (img->hfsplus_blessed[idx] != NULL)
iso_node_unref(img->hfsplus_blessed[idx]);
img->hfsplus_blessed[idx] = NULL;
}
/* API */
int iso_image_hfsplus_bless(IsoImage *img, enum IsoHfsplusBlessings blessing,
IsoNode *node, int flag)
{
unsigned int i, ok = 0;
if (flag & 2) {
/* Delete any blessing */
for (i = 0; i < ISO_HFSPLUS_BLESS_MAX; i++) {
if (img->hfsplus_blessed[i] == node || node == NULL) {
unset_blessing(img, i);
ok = 1;
}
}
return ok;
}
if (blessing == ISO_HFSPLUS_BLESS_MAX)
return ISO_WRONG_ARG_VALUE;
if (flag & 1) {
/* Delete a particular blessing */
if (img->hfsplus_blessed[blessing] == node || node == NULL) {
unset_blessing(img, (unsigned int) blessing);
return 1;
}
return 0;
}
if (node == NULL) {
unset_blessing(img, (unsigned int) blessing);
return 1;
}
/* No two hats on one node */
for (i = 0; i < ISO_HFSPLUS_BLESS_MAX && node != NULL; i++)
if (i != blessing && img->hfsplus_blessed[i] == node)
return 0;
/* Enforce correct file type */
if (blessing == ISO_HFSPLUS_BLESS_INTEL_BOOTFILE) {
if (node->type != LIBISO_FILE)
return 0;
} else {
if (node->type != LIBISO_DIR)
return 0;
}
unset_blessing(img, (unsigned int) blessing);
img->hfsplus_blessed[blessing] = node;
if (node != NULL)
iso_node_ref(node);
return 1;
}
/* API */
int iso_image_hfsplus_get_blessed(IsoImage *img, IsoNode ***blessed_nodes,
int *bless_max, int flag)
{
*blessed_nodes = img->hfsplus_blessed;
*bless_max = ISO_HFSPLUS_BLESS_MAX;
return 1;
}
/* API */
int iso_image_set_sparc_core(IsoImage *img, IsoFile *sparc_core, int flag)
{
if (img->sparc_core_node != NULL)
iso_node_unref((IsoNode *) img->sparc_core_node);
img->sparc_core_node = sparc_core;
if (sparc_core != NULL)
iso_node_ref((IsoNode *) sparc_core);
return 1;
}
/* API */
int iso_image_get_sparc_core(IsoImage *img, IsoFile **sparc_core, int flag)
{
*sparc_core = img->sparc_core_node;
return 1;
}
/* @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,
char *what, int flag)
{
int ret, err;
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: %s file '%s'", what, path);
return ISO_BOOT_FILE_MISSING;
}
if (iso_node_get_type(node) != LIBISO_FILE) {
err = ISO_HPPA_PALO_NOTREG;
if (strncmp(what, "DEC Alpha", 9) == 0)
err = ISO_ALPHA_BOOT_NOTREG;
iso_msg_submit(img->id, err, 0,
"%s file is not a data file: '%s'", what, path);
return err;
}
file = (IsoFile *) node;
if (!(file->explicit_weight || file->from_old_session))
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;
static char *what = "HP-PA PALO";
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), what,
flag & 1);
if (ret < 0)
return ret;
ret = hppa_palo_set_path(img, kernel_32, &(img->hppa_kernel_32), what,
flag & 1);
if (ret < 0)
return ret;
ret = hppa_palo_set_path(img, kernel_64, &(img->hppa_kernel_64), what,
flag & 1);
if (ret < 0)
return ret;
ret = hppa_palo_set_path(img, ramdisk, &(img->hppa_ramdisk), what,
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;
}
/* API */
int iso_image_set_alpha_boot(IsoImage *img, char *boot_loader_path, int flag)
{
int ret;
ret = hppa_palo_set_path(img, boot_loader_path, &(img->alpha_boot_image),
"DEC Alpha Bootloader", 1);
if (ret < 0)
return ret;
return ISO_SUCCESS;
}
/* API */
int iso_image_get_alpha_boot(IsoImage *img, char **boot_loader_path)
{
*boot_loader_path = img->alpha_boot_image;
return ISO_SUCCESS;
}
/* API */
int iso_image_set_truncate_mode(IsoImage *img, int mode, int length)
{
if (mode < 0 || mode > 1)
return ISO_WRONG_ARG_VALUE;
if (length < 64 || length > LIBISOFS_NODE_NAME_MAX)
return ISO_WRONG_ARG_VALUE;
img->truncate_mode = mode;
img->truncate_length = length;
return ISO_SUCCESS;
}
/* API */
int iso_image_get_truncate_mode(IsoImage *img, int *mode, int *length)
{
*mode = img->truncate_mode;
*length = img->truncate_length;
return ISO_SUCCESS;
}
/* Warning: Not thread-safe */
int iso_image_truncate_name(IsoImage *image, const char *name, char **namept,
int flag)
{
int ret;
if (name == NULL)
return ISO_NULL_POINTER;
if ((int) strlen(name) <= image->truncate_length) {
*namept = (char *) name;
return ISO_SUCCESS;
}
*namept = image->truncate_buffer;
if (name != image->truncate_buffer)
strncpy(image->truncate_buffer, name, 4095);
image->truncate_buffer[4095] = 0;
ret = iso_truncate_rr_name(image->truncate_mode, image->truncate_length,
image->truncate_buffer, 0);
return ret;
}
/* API */
int iso_image_was_blind_attrs(IsoImage *image, int flag)
{
int ret;
if (image == NULL)
return ISO_NULL_POINTER;
ret = image->blind_on_local_get_attrs;
if (flag & 1)
image->blind_on_local_get_attrs = 0;
return ret;
}
/*
* @param flag bit0= recursion is active
*/
static
int iso_dir_zisofs_discard_bpt(IsoDir *dir, int flag)
{
int ret;
IsoDirIter *iter = NULL;
IsoNode *node;
IsoDir *subdir;
IsoFile *file;
IsoStream *stream;
ret = iso_dir_get_children(dir, &iter);
if (ret < 0)
return ret;
while (iso_dir_iter_next(iter, &node) == 1) {
if (iso_node_get_type(node) == LIBISO_DIR) {
subdir = (IsoDir *) node;
ret = iso_dir_zisofs_discard_bpt(subdir, flag | 1);
if (ret < 0)
goto ex;
continue;
}
if (iso_node_get_type(node) != LIBISO_FILE)
continue;
file = (IsoFile *) node;
stream = iso_file_get_stream(file);
if (stream == NULL)
continue;
ret = iso_stream_zisofs_discard_bpt(stream, 0);
if (ret < 0)
goto ex;
}
ret = ISO_SUCCESS;
ex:;
if (iter != NULL)
iso_dir_iter_free(iter);
return ret;
}
/* API */
int iso_image_zisofs_discard_bpt(IsoImage *image, int flag)
{
int ret;
IsoDir *dir;
if (image == NULL)
return ISO_NULL_POINTER;
dir = image->root;
if (dir == NULL)
return ISO_SUCCESS;
ret = iso_dir_zisofs_discard_bpt(dir, 0);
return ret;
}
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