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New API call iso_write_opts_set_hardlinks() controls hardlink matching,

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new API call iso_write_opts_set_rrip_1_10_px_ino() controls RRIP-1.10 PX size.
This commit is contained in:
Thomas Schmitt 2009-05-09 20:45:14 +02:00
parent c6f1101e9d
commit 5b073a2f29
7 changed files with 281 additions and 70 deletions
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20
libisofs/ecma119.c
View File

@ -887,6 +887,7 @@ int ecma119_image_new(IsoImage *src, IsoWriteOpts *opts, Ecma119Image **img)
target->rockridge = opts->rockridge;
target->joliet = opts->joliet;
target->iso1999 = opts->iso1999;
target->hardlinks = opts->hardlinks;
target->aaip = opts->aaip;
target->always_gmt = opts->always_gmt;
target->ino = 0;
@ -901,6 +902,7 @@ int ecma119_image_new(IsoImage *src, IsoWriteOpts *opts, Ecma119Image **img)
target->relaxed_vol_atts = opts->relaxed_vol_atts;
target->joliet_longer_paths = opts->joliet_longer_paths;
target->rrip_version_1_10 = opts->rrip_version_1_10;
target->rrip_1_10_px_ino = opts->rrip_1_10_px_ino;
target->aaip_susp_1_10 = opts->aaip_susp_1_10;
target->dir_rec_mtime = opts->dir_rec_mtime;
target->sort_files = opts->sort_files;
@ -1427,6 +1429,15 @@ int iso_write_opts_set_iso1999(IsoWriteOpts *opts, int enable)
return ISO_SUCCESS;
}
int iso_write_opts_set_hardlinks(IsoWriteOpts *opts, int enable)
{
if (opts == NULL) {
return ISO_NULL_POINTER;
}
opts->hardlinks = enable ? 1 : 0;
return ISO_SUCCESS;
}
int iso_write_opts_set_aaip(IsoWriteOpts *opts, int enable)
{
if (opts == NULL) {
@ -1526,6 +1537,15 @@ int iso_write_opts_set_rrip_version_1_10(IsoWriteOpts *opts, int oldvers)
return ISO_SUCCESS;
}
int iso_write_opts_set_rrip_1_10_px_ino(IsoWriteOpts *opts, int enable)
{
if (opts == NULL) {
return ISO_NULL_POINTER;
}
opts->rrip_1_10_px_ino = enable ? 1 : 0;
return ISO_SUCCESS;
}
int iso_write_opts_set_aaip_susp_1_10(IsoWriteOpts *opts, int oldvers)
{
if (opts == NULL) {

19
libisofs/ecma119.h
View File

@ -115,6 +115,14 @@ struct iso_write_opts {
*/
unsigned int rrip_version_1_10 :1;
/* ts A90509 */
/** Write field PX with file serial number even with RRIP-1.10 */
unsigned int rrip_1_10_px_ino :1;
/* ts A90508 */
/* See iso_write_opts_set_hardlinks() */
unsigned int hardlinks:1;
/**
* Write AAIP as extension according to SUSP 1.10 rather than SUSP 1.12.
* I.e. without announcing it by an ER field and thus without the need
@ -269,7 +277,10 @@ struct ecma119_image
unsigned int eltorito :1;
unsigned int iso1999 :1;
unsigned int aaip :1; /* whether to write eventual ACLs and EAs */
/* ts A90508 */
unsigned int hardlinks:1; /* see iso_write_opts_set_hardlinks() */
unsigned int aaip :1; /* see iso_write_opts_set_aaip() */
/* allways write timestamps in GMT */
unsigned int always_gmt :1;
@ -291,6 +302,10 @@ struct ecma119_image
/** Write old fashioned RRIP-1.10 rather than RRIP-1.12 */
unsigned int rrip_version_1_10 :1;
/* ts A90509 */
/** Write field PX with file serial number even with RRIP-1.10 */
unsigned int rrip_1_10_px_ino :1;
/* Write AAIP as extension according to SUSP 1.10 rather than SUSP 1.12. */
unsigned int aaip_susp_1_10 :1;
@ -318,6 +333,8 @@ struct ecma119_image
*/
int sort_files;
/* ts A90508 : <<< this is on its way out */
/**
* In the CD, each file must have an unique inode number. So each
* time we add a new file, this is incremented.

108
libisofs/ecma119_tree.c
View File

@ -889,80 +889,55 @@ int make_node_array(Ecma119Image *img, Ecma119Node *dir,
return result;
}
/* ts A90503 */
/* ts A90508 */
/*
* @param flag
* bit0= compare stat properties and attributes
* bit1= treat all nodes with image ino == 0 as unique
*/
static
int ecma119_node_cmp(const void *v1, const void *v2)
int ecma119_node_cmp_flag(const void *v1, const void *v2, int flag)
{
int ret1, ret2;
int ret;
Ecma119Node *n1, *n2;
unsigned int fs_id1, fs_id2;
dev_t dev_id1, dev_id2;
ino_t ino_id1, ino_id2;
n1 = *((Ecma119Node **) v1);
n2 = *((Ecma119Node **) v2);
if (n1 == n2)
return 0;
/* Imported or explicite ISO image node id has absolute priority */
ret1 = (iso_node_get_id(n1->node, &fs_id1, &dev_id1, &ino_id1, 1) > 0);
ret2 = (iso_node_get_id(n2->node, &fs_id2, &dev_id2, &ino_id2, 1) > 0);
if (ret1 != ret2)
return (ret1 < ret2 ? -1 : 1);
if (ret1) {
/* fs_id and dev_id do not matter here.
Both nodes have explicite inode numbers of the emerging image.
*/
return (ino_id1 < ino_id2 ? -1 : ino_id1 > ino_id2 ? 1 : 0);
}
if (n1->type < n2->type)
return -1;
if (n1->type > n2->type)
return 1;
if (n1->type == ECMA119_FILE) {
ret1 = iso_file_src_cmp(n1->info.file, n2->info.file);
return ret1;
#ifdef Libisofs_hardlink_matcheR
} else if (n1->type == ECMA119_SYMLINK) {
IsoSymlink *t1, *t2;
t1 = (IsoSymlink *) (n1->node);
t2 = (IsoSymlink *) (n2->node);
return (t1->fs_id < t2->fs_id ? -1 : t1->fs_id > t2->fs_id ? 1 :
t1->st_dev < t2->st_dev ? -1 : t1->st_dev > t2->st_dev ? 1 :
t1->st_ino < t2->st_ino ? -1 : t1->st_ino > t2->st_ino ? 1 :
t1->fs_id || t1->st_dev || t1->st_ino ? 0 : (v1 < v2 ? -1 : 1));
} else if (n1->type == ECMA119_SPECIAL) {
IsoSpecial *t1, *t2;
t1 = (IsoSpecial *) (n1->node);
t2 = (IsoSpecial *) (n2->node);
return (t1->fs_id < t2->fs_id ? -1 : t1->fs_id > t2->fs_id ? 1 :
t1->st_dev < t2->st_dev ? -1 : t1->st_dev > t2->st_dev ? 1 :
t1->st_ino < t2->st_ino ? -1 : t1->st_ino > t2->st_ino ? 1 :
t1->fs_id || t1->st_dev || t1->st_ino ? 0 : (v1 < v2 ? -1 : 1));
#endif /* Libisofs_hardlink_matcheR */
} else {
return (v1 < v2 ? -1 : 1); /* case v1 == v2 is handled above */
}
return 0;
ret = iso_node_cmp_flag(n1->node, n2->node, flag & (1 | 2));
return ret;
}
/* ts A90508 */
static
int ecma119_node_cmp_hard(const void *v1, const void *v2)
{
return ecma119_node_cmp_flag(v1, v2, 1);
}
/* ts A90509 */
static
int ecma119_node_cmp_nohard(const void *v1, const void *v2)
{
return ecma119_node_cmp_flag(v1, v2, 1 | 2);
}
/* ts A90503 */
static
int family_set_ino(Ecma119Image *img, Ecma119Node **nodes, size_t family_start,
size_t next_family, ino_t img_ino, int flag)
size_t next_family, ino_t img_ino, ino_t prev_ino, int flag)
{
size_t i;
if (img_ino != 0) {
/* Check whether this is the same img_ino as in the previous
family (e.g. by property divergence of imported hardlink).
*/
if (img_ino == prev_ino)
img_ino = 0;
}
if (img_ino == 0) {
img_ino = img_give_ino_number(img->image, 0);
}
@ -982,7 +957,7 @@ int match_hardlinks(Ecma119Image *img, Ecma119Node *dir, int flag)
Ecma119Node **nodes = NULL;
unsigned int fs_id;
dev_t dev_id;
ino_t img_ino = 0;
ino_t img_ino = 0, prev_ino = 0;
ret = make_node_array(img, dir, nodes, nodes_size, &node_count, 2);
if (ret < 0)
@ -995,27 +970,34 @@ int match_hardlinks(Ecma119Image *img, Ecma119Node *dir, int flag)
if (ret < 0)
goto ex;
/* Sort according to id tuples and IsoFileSrc identity. */
qsort(nodes, node_count, sizeof(Ecma119Node *), ecma119_node_cmp);
/* Sort according to id tuples, IsoFileSrc identity, properties, xattr. */
if (img->hardlinks)
qsort(nodes, node_count, sizeof(Ecma119Node *), ecma119_node_cmp_hard);
else
qsort(nodes, node_count, sizeof(Ecma119Node *),
ecma119_node_cmp_nohard);
/* Hand out image inode numbers to all Ecma119Node.ino == 0 .
Same sorting rank gets same inode number.
Split those image inode number families where the sort criterion
differs.
*/
iso_node_get_id(nodes[0]->node, &fs_id, &dev_id, &img_ino, 1);
family_start = 0;
for (i = 1; i < node_count; i++) {
if (ecma119_node_cmp(nodes + (i - 1), nodes + i) == 0) {
if (ecma119_node_cmp_hard(nodes + (i - 1), nodes + i) == 0) {
/* Still in same ino family */
if (img_ino == 0) { /* Just in case any member knows its img_ino */
iso_node_get_id(nodes[0]->node, &fs_id, &dev_id, &img_ino, 1);
}
continue;
}
family_set_ino(img, nodes, family_start, i, img_ino, 0);
family_set_ino(img, nodes, family_start, i, img_ino, prev_ino, 0);
prev_ino = img_ino;
iso_node_get_id(nodes[i]->node, &fs_id, &dev_id, &img_ino, 1);
family_start = i;
}
family_set_ino(img, nodes, family_start, i, img_ino, 0);
family_set_ino(img, nodes, family_start, i, img_ino, prev_ino, 0);
ret = ISO_SUCCESS;
ex:;

52
libisofs/libisofs.h
View File

@ -1186,15 +1186,48 @@ int iso_write_opts_set_joliet(IsoWriteOpts *opts, int enable);
*/
int iso_write_opts_set_iso1999(IsoWriteOpts *opts, int enable);
/* ts A90508 */
/**
* Control generation of non-unique inode numbers for the emerging image.
* Inode numbers get written as "file serial number" with PX entries as of
* RRIP-1.12. They may mark families of hardlinks.
* RRIP-1.10 prescribes a PX entry without file serial number. If not overriden
* by iso_write_opts_set_rrip_1_10_px_ino() there will be no file serial
* written into RRIP-1.10 images.
*
* Inode number generation does not affect IsoNode objects which imported their
* inode numbers from the old ISO image (see iso_read_opts_set_new_inos())
* and which have not been altered since import. It rather applies to IsoNode
* objects which were newly added to the image, or to IsoNode which brought no
* inode number from the old image, or to IsoNode where certain properties
* have been altered since image import.
*
* If two IsoNode are found with same imported inode number but differing
* properties, then one of them will get assigned a new unique inode number.
* I.e. the hardlink relation between both IsoNode objects ends.
*
* @param enable
* 1 = Collect IsoNode objects which have identical data sources and
* properties.
* 0 = Generate unique inode numbers for all IsoNode objects which do not
* have a valid inode number from an imported ISO image.
* All other values are reserved.
*
* @since 0.6.20
*/
int iso_write_opts_set_hardlinks(IsoWriteOpts *opts, int enable);
/**
* Control writing of AAIP informations for ACL and xattr.
* For importing ACL and xattr 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 = write AAIP information from nodes into the image
* 0 = do not write AAIP information into the image
* All other values are reserved.
* @param enable
* 1 = write AAIP information from nodes into the image
* 0 = do not write AAIP information into the image
* All other values are reserved.
*
* @since 0.6.14
*/
int iso_write_opts_set_aaip(IsoWriteOpts *opts, int enable);
@ -1290,6 +1323,19 @@ int iso_write_opts_set_joliet_longer_paths(IsoWriteOpts *opts, int allow);
*/
int iso_write_opts_set_rrip_version_1_10(IsoWriteOpts *opts, int oldvers);
/* ts A90509 */
/**
* Write field PX with file serial number (i.e. inode number) even if
* iso_write_opts_set_rrip_version_1_10(,1) is in effect.
* This clearly violates the RRIP-1.10 specs. But it is done by mkisofs since
* a while and no widespread protest is visible in the web.
* If this option is not enabled, then iso_write_opts_set_hardlinks() will
* only have an effect with iso_write_opts_set_rrip_version_1_10(,0).
*
* @since 0.6.20
*/
int iso_write_opts_set_rrip_1_10_px_ino(IsoWriteOpts *opts, int enable);
/**
* Write AAIP as extension according to SUSP 1.10 rather than SUSP 1.12.
* I.e. without announcing it by an ER field and thus without the need

137
libisofs/node.c
View File

@ -2420,3 +2420,140 @@ int iso_node_set_unique_id(IsoNode *node, IsoImage *image, int flag)
return ret;
}
/* ts A90508 */
/*
* @param flag
* bit0= compare stat properties and attributes
* bit1= treat all nodes with image ino == 0 as unique
*/
int iso_node_cmp_flag(IsoNode *n1, IsoNode *n2, int flag)
{
int ret1, ret2;
unsigned int fs_id1, fs_id2;
dev_t dev_id1, dev_id2;
ino_t ino_id1, ino_id2;
IsoFile *f1 = NULL, *f2 = NULL;
IsoSymlink *l1 = NULL, *l2 = NULL;
IsoSpecial *s1 = NULL, *s2 = NULL;
void *x1, *x2;
if (n1 == n2)
return 0;
/* Imported or explicite ISO image node id has absolute priority */
ret1 = (iso_node_get_id(n1, &fs_id1, &dev_id1, &ino_id1, 1) > 0);
ret2 = (iso_node_get_id(n2, &fs_id2, &dev_id2, &ino_id2, 1) > 0);
if (ret1 != ret2)
return (ret1 < ret2 ? -1 : 1);
if (ret1) {
/* fs_id and dev_id do not matter here.
Both nodes have explicit inode numbers of the emerging image.
*/
if (ino_id1 != ino_id2)
return (ino_id1 < ino_id2 ? -1 : 1);
goto inode_match;
}
if (n1->type != n2->type)
return (n1->type < n2->type ? -1 : 1);
if (n1->type == LIBISO_FILE) {
f1 = (IsoFile *) n1;
f2 = (IsoFile *) n2;
ret1 = iso_stream_cmp_ino(f1->stream, f2->stream, 0);
if (ret1)
return ret1;
goto inode_match;
#ifdef Libisofs_hardlink_matcheR
} else if (n1->type == LIBISO_SYMLINK) {
l1 = (IsoSymlink *) n1;
l2 = (IsoSymlink *) n2;
fs_id1 = l1->fs_id;
dev_id1 = l1->st_dev;
ino_id1 = l1->st_ino;
fs_id2 = l2->fs_id;
dev_id2 = l2->st_dev;
ino_id2 = l2->st_ino;
} else if (n1->type == LIBISO_SPECIAL) {
s1 = (IsoSpecial *) n1;
s2 = (IsoSpecial *) n2;
fs_id1 = s1->fs_id;
dev_id1 = s1->st_dev;
ino_id1 = s1->st_ino;
fs_id2 = s2->fs_id;
dev_id2 = s2->st_dev;
ino_id2 = s2->st_ino;
#endif /* Libisofs_hardlink_matcheR */
} else {
return (n1 < n2 ? -1 : 1); /* case n1 == n2 is handled above */
}
if (fs_id1 != fs_id2)
return (fs_id1 < fs_id2 ? -1 : 1);
if (dev_id1 != dev_id2)
return (dev_id1 < dev_id2 ? -1 : 1);
if (ino_id1 != ino_id2)
return (ino_id1 < ino_id2 ? -1 : 1);
if (fs_id1 == 0 && dev_id1 == 0 && ino_id1 == 0)
return (n1 < n2 ? -1 : 1);
inode_match:;
if (flag & 2) {
iso_node_get_id(n1, &fs_id1, &dev_id1, &ino_id1, 1);
iso_node_get_id(n2, &fs_id2, &dev_id2, &ino_id2, 1);
if (ino_id1 == 0 || ino_id2 == 0)
return (n1 < n2 ? -1 : 1);
}
if (!(flag & 1))
return 0;
if (n1->type == LIBISO_SYMLINK) {
ret1 = strcmp(l1->dest, l2->dest);
if (ret1)
return ret1;
} else if (n1->type == LIBISO_SPECIAL) {
if (s1->dev != s2->dev)
return (s1->dev < s2->dev ? -1 : 1);
}
if (n1->mode != n2->mode)
return (n1->mode < n2->mode ? -1 : 1);
if (n1->uid != n2->uid)
return (n1->uid < n2->uid ? -1 : 1);
if (n1->gid != n2->gid)
return (n1->gid < n2->gid ? -1 : 1);
if (n1->atime != n2->atime)
return (n1->atime < n2->atime ? -1 : 1);
if (n1->mtime != n2->mtime)
return (n1->mtime < n2->mtime ? -1 : 1);
if (n1->ctime != n2->ctime)
return (n1->ctime < n2->ctime ? -1 : 1);
/* >>> compare xinfo */;
/* :( cannot compare general xinfo because data length is not known :( */
/* compare aa_string */
ret1 = iso_node_get_xinfo(n1, aaip_xinfo_func, &x1);
ret2 = iso_node_get_xinfo(n2, aaip_xinfo_func, &x2);
if (ret1 != ret2)
return (ret1 < ret2 ? -1 : 1);
if (ret1 == 1) {
ret1 = aaip_count_bytes((unsigned char *) x1, 0);
ret2 = aaip_count_bytes((unsigned char *) x2, 0);
if (ret1 != ret2)
return (ret1 < ret2 ? -1 : 1);
ret1 = memcmp(x1, x2, ret1);
if (ret1)
return ret1;
}
return 0;
}

9
libisofs/node.h
View File

@ -447,4 +447,13 @@ int iso_node_set_unique_id(IsoNode *node, IsoImage *image, int flag);
*/
int iso_node_set_ino(IsoNode *node, ino_t ino, int flag);
/* ts A90508 */
/*
* @param flag
* bit0= compare stat properties and attributes
* bit1= treat all nodes with image ino == 0 as unique
* (those with 0,0,0 are treated as unique anyway)
*/
int iso_node_cmp_flag(IsoNode *n1, IsoNode *n2, int flag);
#endif /*LIBISO_NODE_H_*/

6
libisofs/rockridge.c
View File

@ -102,7 +102,7 @@ int rrip_add_PX(Ecma119Image *t, Ecma119Node *n, struct susp_info *susp)
PX[0] = 'P';
PX[1] = 'X';
if (!t->rrip_version_1_10) {
if (t->rrip_1_10_px_ino || !t->rrip_version_1_10 ) {
PX[2] = 44;
} else {
PX[2] = 36;
@ -112,7 +112,7 @@ int rrip_add_PX(Ecma119Image *t, Ecma119Node *n, struct susp_info *susp)
iso_bb(&PX[12], n->nlink, 4);
iso_bb(&PX[20], px_get_uid(t, n), 4);
iso_bb(&PX[28], px_get_gid(t, n), 4);
if (!t->rrip_version_1_10) {
if (t->rrip_1_10_px_ino || !t->rrip_version_1_10) {
iso_bb(&PX[36], n->ino, 4);
}
@ -1144,7 +1144,7 @@ size_t rrip_calc_len(Ecma119Image *t, Ecma119Node *n, int type, size_t space,
#endif
/* PX and TF, we are sure they always fit in SUA */
if (!t->rrip_version_1_10) {
if (t->rrip_1_10_px_ino || !t->rrip_version_1_10) {
su_size += 44 + 26;
} else {
su_size += 36 + 26;