mirror of
https://git.code.sf.net/p/ntfs-3g/ntfs-3g.git
synced 2024-11-23 10:04:00 +08:00
Inserted the reparse tag in the bad reparse symlink
The reparse tag is not quoted in the "unsupported reparse point" fake symlink shown when a reparse point cannot be processed. The tag is useful to determine which plugin, if any, is missing.
This commit is contained in:
Jean-Pierre André
parent
02673bd04a
commit
b086c9ef73
@ -277,7 +277,9 @@ static const char *usage_msg =
|
||||
#endif /* PLUGIN_DIR */
|
||||
"%s";
|
||||
|
||||
static const char ntfs_bad_reparse[] = "unsupported reparse point";
|
||||
static const char ntfs_bad_reparse[] = "unsupported reparse tag 0x%08lx";
|
||||
/* exact length of target text, without the terminator */
|
||||
#define ntfs_bad_reparse_lth (sizeof(ntfs_bad_reparse) + 2)
|
||||
|
||||
#ifdef FUSE_INTERNAL
|
||||
int drop_privs(void);
|
||||
@ -664,7 +666,7 @@ static int junction_getstat(ntfs_inode *ni,
|
||||
if (target)
|
||||
stbuf->st_size = strlen(target);
|
||||
else
|
||||
stbuf->st_size = sizeof(ntfs_bad_reparse) - 1;
|
||||
stbuf->st_size = ntfs_bad_reparse_lth;
|
||||
stbuf->st_blocks = (ni->allocated_size + 511) >> 9;
|
||||
stbuf->st_mode = S_IFLNK;
|
||||
free(target);
|
||||
@ -722,8 +724,7 @@ static int ntfs_fuse_getstat(struct SECURITY_CONTEXT *scx,
|
||||
if (!res) {
|
||||
apply_umask(stbuf);
|
||||
} else {
|
||||
stbuf->st_size =
|
||||
sizeof(ntfs_bad_reparse) - 1;
|
||||
stbuf->st_size = ntfs_bad_reparse_lth;
|
||||
stbuf->st_blocks =
|
||||
(ni->allocated_size + 511) >> 9;
|
||||
stbuf->st_mode = S_IFLNK;
|
||||
@ -744,8 +745,7 @@ static int ntfs_fuse_getstat(struct SECURITY_CONTEXT *scx,
|
||||
if (target)
|
||||
stbuf->st_size = strlen(target);
|
||||
else
|
||||
stbuf->st_size =
|
||||
sizeof(ntfs_bad_reparse) - 1;
|
||||
stbuf->st_size = ntfs_bad_reparse_lth;
|
||||
stbuf->st_blocks =
|
||||
(ni->allocated_size + 511) >> 9;
|
||||
stbuf->st_nlink =
|
||||
@ -1035,19 +1035,33 @@ static void ntfs_fuse_lookup(fuse_req_t req, fuse_ino_t parent,
|
||||
*/
|
||||
|
||||
static int junction_readlink(ntfs_inode *ni,
|
||||
const REPARSE_POINT *reparse __attribute__((unused)),
|
||||
char **pbuf)
|
||||
const REPARSE_POINT *reparse, char **pbuf)
|
||||
{
|
||||
int res;
|
||||
le32 tag;
|
||||
int lth;
|
||||
|
||||
errno = 0;
|
||||
res = 0;
|
||||
*pbuf = ntfs_make_symlink(ni, ctx->abs_mnt_point);
|
||||
if (!*pbuf) {
|
||||
if (errno == EOPNOTSUPP) {
|
||||
*pbuf = strdup(ntfs_bad_reparse);
|
||||
if (!*pbuf)
|
||||
*pbuf = (char*)ntfs_malloc(ntfs_bad_reparse_lth + 1);
|
||||
if (*pbuf) {
|
||||
if (reparse)
|
||||
tag = reparse->reparse_tag;
|
||||
else
|
||||
tag = const_cpu_to_le32(0);
|
||||
lth = snprintf(*pbuf, ntfs_bad_reparse_lth + 1,
|
||||
ntfs_bad_reparse,
|
||||
(long)le32_to_cpu(tag));
|
||||
if (lth != ntfs_bad_reparse_lth) {
|
||||
free(*pbuf);
|
||||
*pbuf = (char*)NULL;
|
||||
res = -errno;
|
||||
}
|
||||
} else
|
||||
res = -ENOMEM;
|
||||
} else
|
||||
res = -errno;
|
||||
}
|
||||
@ -1074,26 +1088,41 @@ static void ntfs_fuse_readlink(fuse_req_t req, fuse_ino_t ino)
|
||||
* Reparse point : analyze as a junction point
|
||||
*/
|
||||
if (ni->flags & FILE_ATTR_REPARSE_POINT) {
|
||||
REPARSE_POINT *reparse;
|
||||
le32 tag;
|
||||
int lth;
|
||||
#ifndef DISABLE_PLUGINS
|
||||
const plugin_operations_t *ops;
|
||||
REPARSE_POINT *reparse;
|
||||
|
||||
res = CALL_REPARSE_PLUGIN(ni, readlink, &buf);
|
||||
if (res || !buf) {
|
||||
buf = strdup(ntfs_bad_reparse);
|
||||
res = (buf ? 0 : -errno);
|
||||
}
|
||||
if (res && (errno == ELIBACC))
|
||||
errno = EOPNOTSUPP;
|
||||
#else /* DISABLE_PLUGINS */
|
||||
errno = 0;
|
||||
res = 0;
|
||||
buf = ntfs_make_symlink(ni, ctx->abs_mnt_point);
|
||||
if (!buf) {
|
||||
if (errno == EOPNOTSUPP)
|
||||
buf = strdup(ntfs_bad_reparse);
|
||||
#endif /* DISABLE_PLUGINS */
|
||||
if (!buf && (errno == EOPNOTSUPP)) {
|
||||
buf = (char*)malloc(ntfs_bad_reparse_lth + 1);
|
||||
if (buf) {
|
||||
reparse = ntfs_get_reparse_point(ni);
|
||||
if (reparse) {
|
||||
tag = reparse->reparse_tag;
|
||||
free(reparse);
|
||||
} else
|
||||
tag = const_cpu_to_le32(0);
|
||||
lth = snprintf(buf, ntfs_bad_reparse_lth + 1,
|
||||
ntfs_bad_reparse,
|
||||
(long)le32_to_cpu(tag));
|
||||
res = 0;
|
||||
if (lth != ntfs_bad_reparse_lth) {
|
||||
free(buf);
|
||||
buf = (char*)NULL;
|
||||
}
|
||||
}
|
||||
}
|
||||
if (!buf)
|
||||
res = -errno;
|
||||
}
|
||||
#endif /* DISABLE_PLUGINS */
|
||||
goto exit;
|
||||
}
|
||||
/* Sanity checks. */
|
||||
@ -1149,7 +1178,6 @@ exit:
|
||||
fuse_reply_err(req, -res);
|
||||
else
|
||||
fuse_reply_readlink(req, buf);
|
||||
if (buf != ntfs_bad_reparse)
|
||||
free(buf);
|
||||
}
|
||||
|
||||
|
||||
@ -212,7 +212,9 @@ static const char *usage_msg =
|
||||
#endif /* PLUGIN_DIR */
|
||||
"%s";
|
||||
|
||||
static const char ntfs_bad_reparse[] = "unsupported reparse point";
|
||||
static const char ntfs_bad_reparse[] = "unsupported reparse tag 0x%08lx";
|
||||
/* exact length of target text, without the terminator */
|
||||
#define ntfs_bad_reparse_lth (sizeof(ntfs_bad_reparse) + 2)
|
||||
|
||||
#ifdef FUSE_INTERNAL
|
||||
int drop_privs(void);
|
||||
@ -722,7 +724,7 @@ static int junction_getattr(ntfs_inode *ni,
|
||||
if (target)
|
||||
stbuf->st_size = strlen(target);
|
||||
else
|
||||
stbuf->st_size = sizeof(ntfs_bad_reparse) - 1;
|
||||
stbuf->st_size = ntfs_bad_reparse_lth;
|
||||
stbuf->st_blocks = (ni->allocated_size + 511) >> 9;
|
||||
stbuf->st_mode = S_IFLNK;
|
||||
free(target);
|
||||
@ -807,8 +809,7 @@ static int ntfs_fuse_getattr(const char *org_path, struct stat *stbuf)
|
||||
apply_umask(stbuf);
|
||||
goto ok;
|
||||
} else {
|
||||
stbuf->st_size =
|
||||
sizeof(ntfs_bad_reparse) - 1;
|
||||
stbuf->st_size = ntfs_bad_reparse_lth;
|
||||
stbuf->st_blocks =
|
||||
(ni->allocated_size + 511) >> 9;
|
||||
stbuf->st_mode = S_IFLNK;
|
||||
@ -830,7 +831,7 @@ static int ntfs_fuse_getattr(const char *org_path, struct stat *stbuf)
|
||||
if (target)
|
||||
stbuf->st_size = strlen(target);
|
||||
else
|
||||
stbuf->st_size = sizeof(ntfs_bad_reparse) - 1;
|
||||
stbuf->st_size = ntfs_bad_reparse_lth;
|
||||
stbuf->st_blocks = (ni->allocated_size + 511) >> 9;
|
||||
stbuf->st_nlink = le16_to_cpu(ni->mrec->link_count);
|
||||
stbuf->st_mode = S_IFLNK;
|
||||
@ -1052,15 +1053,30 @@ static int junction_readlink(ntfs_inode *ni,
|
||||
char **pbuf)
|
||||
{
|
||||
int res;
|
||||
le32 tag;
|
||||
int lth;
|
||||
|
||||
errno = 0;
|
||||
res = 0;
|
||||
*pbuf = ntfs_make_symlink(ni, ctx->abs_mnt_point);
|
||||
if (!*pbuf) {
|
||||
if (errno == EOPNOTSUPP) {
|
||||
*pbuf = strdup(ntfs_bad_reparse);
|
||||
if (!*pbuf)
|
||||
*pbuf = (char*)ntfs_malloc(ntfs_bad_reparse_lth + 1);
|
||||
if (*pbuf) {
|
||||
if (reparse)
|
||||
tag = reparse->reparse_tag;
|
||||
else
|
||||
tag = const_cpu_to_le32(0);
|
||||
lth = snprintf(*pbuf, ntfs_bad_reparse_lth + 1,
|
||||
ntfs_bad_reparse,
|
||||
(long)le32_to_cpu(tag));
|
||||
if (lth != ntfs_bad_reparse_lth) {
|
||||
free(*pbuf);
|
||||
*pbuf = (char*)NULL;
|
||||
res = -errno;
|
||||
}
|
||||
} else
|
||||
res = -ENOMEM;
|
||||
} else
|
||||
res = -errno;
|
||||
}
|
||||
@ -1077,6 +1093,9 @@ static int ntfs_fuse_readlink(const char *org_path, char *buf, size_t buf_size)
|
||||
ntfs_attr *na = NULL;
|
||||
INTX_FILE *intx_file = NULL;
|
||||
int stream_name_len, res = 0;
|
||||
REPARSE_POINT *reparse;
|
||||
le32 tag;
|
||||
int lth;
|
||||
|
||||
/* Get inode. */
|
||||
stream_name_len = ntfs_fuse_parse_path(org_path, &path, &stream_name);
|
||||
@ -1098,16 +1117,16 @@ static int ntfs_fuse_readlink(const char *org_path, char *buf, size_t buf_size)
|
||||
#ifndef DISABLE_PLUGINS
|
||||
char *gotlink;
|
||||
const plugin_operations_t *ops;
|
||||
REPARSE_POINT *reparse;
|
||||
|
||||
gotlink = (char*)NULL;
|
||||
res = CALL_REPARSE_PLUGIN(ni, readlink, &gotlink);
|
||||
if (gotlink) {
|
||||
strncpy(buf, gotlink, buf_size);
|
||||
free(gotlink);
|
||||
} else {
|
||||
strncpy(buf, ntfs_bad_reparse, buf_size);
|
||||
res = 0;
|
||||
} else {
|
||||
errno = EOPNOTSUPP;
|
||||
res = -EOPNOTSUPP;
|
||||
}
|
||||
#else /* DISABLE_PLUGINS */
|
||||
char *target;
|
||||
@ -1119,11 +1138,22 @@ static int ntfs_fuse_readlink(const char *org_path, char *buf, size_t buf_size)
|
||||
strncpy(buf,target,buf_size);
|
||||
free(target);
|
||||
} else
|
||||
if (errno == EOPNOTSUPP)
|
||||
strcpy(buf,ntfs_bad_reparse);
|
||||
else
|
||||
res = -errno;
|
||||
#endif /* DISABLE_PLUGINS */
|
||||
if (res == -EOPNOTSUPP) {
|
||||
reparse = ntfs_get_reparse_point(ni);
|
||||
if (reparse) {
|
||||
tag = reparse->reparse_tag;
|
||||
free(reparse);
|
||||
} else
|
||||
tag = const_cpu_to_le32(0);
|
||||
lth = snprintf(buf, ntfs_bad_reparse_lth + 1,
|
||||
ntfs_bad_reparse,
|
||||
(long)le32_to_cpu(tag));
|
||||
res = 0;
|
||||
if (lth != ntfs_bad_reparse_lth)
|
||||
res = -errno;
|
||||
}
|
||||
goto exit;
|
||||
}
|
||||
/* Sanity checks. */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user