libburnia/libisofs
2
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Controlling import and export of ACL, EA, AAIP

Browse Source
This commit is contained in:
Thomas Schmitt
2009-01-23 09:32:32 +01:00
parent 65e5b00171
commit c8495481ca
10 changed files with 138 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
libisofs/builder.c
View File

@ -13,6 +13,9 @@
#include "node.h"
#include "fsource.h"
/* ts A90121 : needed for image->builder_ignore_acl */
#include "image.h"
#include <stdlib.h>
#include <string.h>
#include <limits.h>
@ -187,7 +190,9 @@ int default_create_node(IsoNodeBuilder *builder, IsoImage *image,
/* ts A90115 */
/* obtain ownership of eventual AA string */
ret = iso_file_source_get_aa_string(src, &aa_string, 1);
ret = iso_file_source_get_aa_string(src, &aa_string,
1 | (image->builder_ignore_acl << 1) |
(image->builder_ignore_ea << 2 ));
if (ret == 1 && aa_string != NULL) {
/* >>> change field signatures to eventual libisofs non-"AA" setting */;

13
libisofs/ecma119.c
View File

@ -883,6 +883,10 @@ int ecma119_image_new(IsoImage *src, IsoWriteOpts *opts, Ecma119Image **img)
target->rockridge = opts->rockridge;
target->joliet = opts->joliet;
target->iso1999 = opts->iso1999;
/* ts A90122 */
target->aaip = opts->aaip;
target->always_gmt = opts->always_gmt;
target->ino = 0;
target->omit_version_numbers = opts->omit_version_numbers
@ -1412,6 +1416,15 @@ int iso_write_opts_set_iso1999(IsoWriteOpts *opts, int enable)
return ISO_SUCCESS;
}
int iso_write_opts_set_aaip(IsoWriteOpts *opts, int enable)
{
if (opts == NULL) {
return ISO_NULL_POINTER;
}
opts->aaip = enable ? 1 : 0;
return ISO_SUCCESS;
}
int iso_write_opts_set_omit_version_numbers(IsoWriteOpts *opts, int omit)
{
if (opts == NULL) {

6
libisofs/ecma119.h
View File

@ -42,6 +42,9 @@ struct iso_write_opts {
unsigned int joliet :1;
unsigned int iso1999 :1;
/* ts A90122 */
unsigned int aaip :1; /* whether to write eventual ACL and EAs */
/* allways write timestamps in GMT */
unsigned int always_gmt :1;
@ -245,6 +248,9 @@ struct ecma119_image
unsigned int eltorito :1;
unsigned int iso1999 :1;
/* ts A90122 */
unsigned int aaip :1; /* whether to write eventual ACLs and EAs */
/* allways write timestamps in GMT */
unsigned int always_gmt :1;

4
libisofs/fs_image.c
View File

@ -295,8 +295,8 @@ struct image_fs_data
/**
* malloc() storage for the string of AA fields which represent
* POSIX Extended Attributes and ACLs. (Not to be confused with
* ECMA-119 Extended Attributes.)
* ACLs and XFS-style Extended Attributes. (Not to be confused with
* ECMA-119 Extended Attributes.)
*/
unsigned char *aa_string;

12
libisofs/fs_local.c
View File

@ -39,6 +39,7 @@ int iso_file_source_new_lfs(IsoFileSource *parent, const char *name,
*/
IsoFilesystem *lfs= NULL;
typedef struct
{
/** reference to the parent (if root it points to itself) */
@ -485,8 +486,16 @@ int lfs_get_aa_string(IsoFileSource *src, unsigned char **aa_string, int flag)
size_t num_attrs = 0, *value_lengths = NULL, result_len, sret;
char *path = NULL, **names = NULL, **values = NULL;
unsigned char *result = NULL;
_LocalFsFileSource *data;
data = src->data;
*aa_string = NULL;
if ((flag & 3 ) == 3) {
ret = 1;
goto ex;
}
/* Obtain EAs and ACLs ("access" and "default"). ACLs encoded according
to AAIP ACL representation. Clean out st_mode ACL entries.
*/
@ -494,7 +503,8 @@ int lfs_get_aa_string(IsoFileSource *src, unsigned char **aa_string, int flag)
/* >>> make adjustable: bit4 = ignoring of st_mode ACL entries */
ret = aaip_get_attr_list(path, &num_attrs, &names,
&value_lengths, &values, 1 | 2 | 16);
&value_lengths, &values,
(!(flag & 2)) | 2 | (flag & 4) | 16);
if (ret <= 0) {
ret = ISO_FILE_ERROR;
goto ex;

10
libisofs/image.c
View File

@ -71,6 +71,8 @@ int iso_image_new(const char *name, IsoImage **image)
img->volset_id = strdup(name);
img->volume_id = strdup(name);
}
img->builder_ignore_acl = 1;
img->builder_ignore_ea = 1;
*image = img;
return ISO_SUCCESS;
}
@ -308,3 +310,11 @@ int iso_image_update_sizes(IsoImage *image)
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);
}

14
libisofs/image.h
View File

@ -76,6 +76,20 @@ struct Iso_Image
*/
int ignore_special;
/**
* Whether to ignore ACL when inserting nodes into the image.
* Not in effect with loading a complete ISO image but only with image
* manipulation.
*/
unsigned int builder_ignore_acl : 1;
/**
* Whether to ignore EAs when inserting nodes into the image.
* Not in effect with loading a complete ISO image but only with image
* manipulation. ACL does not count as EA.
*/
unsigned int builder_ignore_ea : 1;
/**
* Files to exclude. Wildcard support is included.
*/

66
libisofs/libisofs.h
View File

@ -673,12 +673,20 @@ struct IsoFileSource_Iface
/* ts A90114 */
/**
* Valid only if .version is > 0. See above.
* Get the AA string with encoded ACL and/or POSIX Extended Attributes.
* Get the AA string with encoded ACL and/or XFS-style Extended Attributes.
* (Not to be confused with ECMA-119 Extended Attributes).
*
* bit1 and bit2 of flag should be implemented so that freshly fetched
* info does not include the undesired ACL or EAs. Nevertheless if the
* aa_string is cached, then it is permissible that ACL and EA are still
* delivered.
*
* @param flag Bitfield for control purposes
* bit0= Transfer ownership of AA string data.
* src will free the eventual cached data and might
* not be able to produce it again.
* bit1= No need to get ACL (no guarantee of exclusion)
* bit2= No need to get EA (no guarantee of exclusion)
* @param aa_string Returns a pointer to the AA string data. If no AA
* string is available, *aa_string becomes NULL.
* Field signature will be "AA".
@ -915,6 +923,30 @@ char *iso_get_local_charset(int flag);
int iso_image_new(const char *name, IsoImage **image);
/* ts A90121 */
/**
* Control whether ACL and XFS-style Extended Attributes will be imported from
* external filesystems (typically the local POSIX filesystem) when new
* nodes get inserted. If enabled by iso_write_opts_set_aaip() they will later
* be written into the image as AAIP extension fields.
*
* A change of this setting does neither affect existing IsoNode objects
* nor the way how ACL and EA are handled when loading an ISO image.
* The latter is controlled by iso_read_opts_set_no_aaip().
*
* @param image
* The image of which the behavior is to be controlled
* @param what
* A bit field which sets the behavior:
* bit0= ignore ACLs if the external file object bears some
* bit1= ignore EAs if the external file object bears some
* all other bits are reserved
*
* @since 0.6.14
*/
void iso_image_set_ignore_aclea(IsoImage *image, int what);
/**
* The following two functions three macros are utilities to help ensuring
* version match of application, compile time header, and runtime library.
@ -1017,6 +1049,9 @@ int iso_lib_is_compatible(int major, int minor, int micro);
* ---> 1 [BACKUP]
* POSIX compatibility for backup. Simple settings, ISO level is set to
* 3 and RR extensions are enabled. Useful for backup purposes.
* Note that ACL and XFS-style EA are not enabled by default.
* If you enable them, expect them not to show up in the mounted image.
* They will have to be retrieved by libisofs applications like xorriso.
* ---> 2 [DISTRIBUTION]
* Setting for information distribution. Both RR and Joliet are enabled
* to maximize compatibility with most systems. Permissions are set to
@ -1098,6 +1133,21 @@ int iso_write_opts_set_joliet(IsoWriteOpts *opts, int enable);
*/
int iso_write_opts_set_iso1999(IsoWriteOpts *opts, int enable);
/* ts A90122 */
/**
* Control writing of AAIP informations for ACL and XFS-style Extended
* Attributes.
* For importing ACL and EA when inserting nodes from external filesystems
* (e.g. the local POSIX filesystem) see iso_image_set_ignore_aclea().
* For loading of this information from images see iso_read_opts_set_no_aaip().
*
* @param enable 1 = do not read AAIP information
* 0 = read AAIP information if available
* All other values are reserved.
* @since 0.6.14
*/
int iso_write_opts_set_aaip(IsoWriteOpts *opts, int enable);
/**
* Omit the version number (";1") at the end of the ISO-9660 identifiers.
* This breaks ECMA-119 specification, but version numbers are usually not
@ -1461,8 +1511,7 @@ int iso_image_update_sizes(IsoImage *image);
* ---> 0 [STANDARD]
* Suitable for most situations. Most extension are read. When both
* Joliet and RR extension are present, RR is used.
* AAIP for ACL and POSIX Extended Attributes is not enabled by
* default.
* AAIP for ACL and Extended Attributes is not enabled by default.
* @return
* 1 success, < 0 error
*
@ -1509,7 +1558,12 @@ int iso_read_opts_set_no_joliet(IsoReadOpts *opts, int nojoliet);
int iso_read_opts_set_no_iso1999(IsoReadOpts *opts, int noiso1999);
/**
* Control reading of AAIP informations for ACL and POSIX Extended Attributes.
* Control reading of AAIP informations about ACL and XFS-style Extended
* Attributes when loading existing images.
* For importing ACL and EA when inserting nodes from external filesystems
* (e.g. the local POSIX filesystem) see iso_image_set_ignore_aclea().
* For eventual writing of this information see iso_write_opts_set_aaip().
*
* @param noaaip 1 = do not read AAIP information
* 0 = read AAIP information if available
* All other values are reserved.
@ -3666,7 +3720,7 @@ int iso_file_source_readlink(IsoFileSource *src, char *buf, size_t bufsiz);
/**
* Get the AA string with encoded ACL and/or POSIX Extended Attributes.
* Get the AA string with encoded ACL and/or XFS-style Extended Attributes.
* (Not to be confused with ECMA-119 Extended Attributes).
* @param src The file source object to be inquired.
* @param aa_string Returns a pointer to the AA string data. If no AA
@ -3680,6 +3734,8 @@ int iso_file_source_readlink(IsoFileSource *src, char *buf, size_t bufsiz);
* bit0= Transfer ownership of AA string data.
* src will free the eventual cached data and might
* not be able to produce it again.
* bit1= No need to get ACL (but no guarantee of exclusion)
* bit2= No need to get EA (but no guarantee of exclusion)
* @return 1 means success (*aa_string == NULL is possible)
* <0 means failure and must b a valid libisofs error code
* (e.g. ISO_FILE_ERROR if no better one can be found).

23
libisofs/rockridge.c
View File

@ -880,9 +880,7 @@ int susp_calc_nm_sl_aa(Ecma119Image *t, Ecma119Node *n, size_t space,
/* obtain num_aapt from node */
num_aapt = 0;
/* >>> if AAIP is enabled */
if (1) {
if (t->aaip) {
ret = iso_node_get_xinfo(n->node, aaip_xinfo_func, &xipt);
if (ret == 1) {
num_aapt = aaip_count_bytes((unsigned char *) xipt, 0);
@ -1127,10 +1125,7 @@ size_t rrip_calc_len(Ecma119Image *t, Ecma119Node *n, int type, size_t space,
/* obtain num_aapt from node */
num_aapt = 0;
/* >>> if AAIP is enabled */
if (1) {
if (t->aaip) {
ret = iso_node_get_xinfo(n->node, aaip_xinfo_func, &xipt);
if (ret == 1) {
num_aapt = aaip_count_bytes((unsigned char *) xipt, 0);
@ -1171,13 +1166,11 @@ size_t rrip_calc_len(Ecma119Image *t, Ecma119Node *n, int type, size_t space,
if (1) {
#else /* Libisofs_with_aaip_dummY */
/* >>> if AAIP is enabled */
if (1) {
if (t->aaip) {
#endif /* ! Libisofs_with_aaip_dummY */
*ce += 160; /* ER of AAIP */
}
#endif /* Libisofs_with_aaiP */
@ -1655,9 +1648,7 @@ int rrip_get_susp_fields(Ecma119Image *t, Ecma119Node *n, int type,
ret = ISO_SUCCESS;
num_aapt = 0;
/* >>> if AAIP is enabled */
if (1) {
if (t->aaip) {
ret = iso_node_get_xinfo(n->node, aaip_xinfo_func, &xipt);
if (ret == 1) {
num_aapt = aaip_count_bytes((unsigned char *) xipt, 0);
@ -1708,8 +1699,7 @@ int rrip_get_susp_fields(Ecma119Image *t, Ecma119Node *n, int type,
#else /* Libisofs_with_aaip_dummY */
/* >>> if AAIP is enabled */
if (1) {
if (t->aaip) {
#endif /* ! Libisofs_with_aaip_dummY */
@ -1737,8 +1727,7 @@ int rrip_get_susp_fields(Ecma119Image *t, Ecma119Node *n, int type,
#else /* Libisofs_with_aaip_dummY */
/* >>> if AAIP is enabled */
if (1) {
if (t->aaip) {
#endif /* ! Libisofs_with_aaip_dummY */