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-rw-r--r--source3/smbd/filename.c291
-rw-r--r--source3/smbd/statcache.c15
2 files changed, 168 insertions, 138 deletions
diff --git a/source3/smbd/filename.c b/source3/smbd/filename.c
index 541b0cd3cb..09f9a418bd 100644
--- a/source3/smbd/filename.c
+++ b/source3/smbd/filename.c
@@ -117,23 +117,21 @@ NTSTATUS unix_convert(TALLOC_CTX *ctx,
struct smb_filename **smb_fname_out,
uint32_t ucf_flags)
{
- SMB_STRUCT_STAT st;
struct smb_filename *smb_fname = NULL;
char *start, *end;
char *dirpath = NULL;
- char *name = NULL;
char *stream = NULL;
bool component_was_mangled = False;
bool name_has_wildcard = False;
bool posix_pathnames = false;
bool allow_wcard_last_component = ucf_flags & UCF_ALLOW_WCARD_LCOMP;
bool save_last_component = ucf_flags & UCF_SAVE_LCOMP;
- NTSTATUS result;
+ NTSTATUS status;
int ret = -1;
*smb_fname_out = NULL;
- smb_fname = talloc_zero(talloc_tos(), struct smb_filename);
+ smb_fname = talloc_zero(ctx, struct smb_filename);
if (smb_fname == NULL) {
return NT_STATUS_NO_MEMORY;
}
@@ -143,10 +141,10 @@ NTSTATUS unix_convert(TALLOC_CTX *ctx,
filename - so don't convert them */
if (!(smb_fname->base_name = talloc_strdup(smb_fname,
orig_path))) {
- return NT_STATUS_NO_MEMORY;
+ status = NT_STATUS_NO_MEMORY;
+ goto err;
}
- *smb_fname_out = smb_fname;
- return NT_STATUS_OK;
+ goto done;
}
DEBUG(5, ("unix_convert called on file \"%s\"\n", orig_path));
@@ -174,15 +172,16 @@ NTSTATUS unix_convert(TALLOC_CTX *ctx,
*/
if (!*orig_path) {
- if (!(name = talloc_strdup(ctx,"."))) {
- return NT_STATUS_NO_MEMORY;
+ if (!(smb_fname->base_name = talloc_strdup(smb_fname, "."))) {
+ status = NT_STATUS_NO_MEMORY;
+ goto err;
}
- if (vfs_stat_smb_fname(conn,name,&st) == 0) {
- smb_fname->st = st;
- } else {
- return map_nt_error_from_unix(errno);
+ if (SMB_VFS_STAT(conn, smb_fname) != 0) {
+ status = map_nt_error_from_unix(errno);
+ goto err;
}
- DEBUG(5,("conversion finished \"\" -> %s\n",name));
+ DEBUG(5, ("conversion finished \"\" -> %s\n",
+ smb_fname->base_name));
goto done;
}
@@ -190,17 +189,19 @@ NTSTATUS unix_convert(TALLOC_CTX *ctx,
orig_path[1] == '\0')) {
/* Start of pathname can't be "." only. */
if (orig_path[1] == '\0' || orig_path[2] == '\0') {
- result = NT_STATUS_OBJECT_NAME_INVALID;
+ status = NT_STATUS_OBJECT_NAME_INVALID;
} else {
- result =determine_path_error(
- &orig_path[2], allow_wcard_last_component);
+ status =determine_path_error(&orig_path[2],
+ allow_wcard_last_component);
}
- return result;
+ goto err;
}
- if (!(name = talloc_strdup(ctx, orig_path))) {
+ /* Start with the full orig_path as given by the caller. */
+ if (!(smb_fname->base_name = talloc_strdup(smb_fname, orig_path))) {
DEBUG(0, ("talloc_strdup failed\n"));
- return NT_STATUS_NO_MEMORY;
+ status = NT_STATUS_NO_MEMORY;
+ goto err;
}
/*
@@ -214,7 +215,7 @@ NTSTATUS unix_convert(TALLOC_CTX *ctx,
if (conn->case_sensitive && !conn->case_preserve &&
!conn->short_case_preserve) {
- strnorm(name, lp_defaultcase(SNUM(conn)));
+ strnorm(smb_fname->base_name, lp_defaultcase(SNUM(conn)));
}
/*
@@ -222,44 +223,60 @@ NTSTATUS unix_convert(TALLOC_CTX *ctx,
*/
if(save_last_component) {
- end = strrchr_m(name, '/');
+ end = strrchr_m(smb_fname->base_name, '/');
if (end) {
- smb_fname->original_lcomp = talloc_strdup(ctx,
+ smb_fname->original_lcomp = talloc_strdup(smb_fname,
end + 1);
} else {
- smb_fname->original_lcomp = talloc_strdup(ctx, name);
+ smb_fname->original_lcomp =
+ talloc_strdup(smb_fname, smb_fname->base_name);
+ }
+ if (smb_fname->original_lcomp == NULL) {
+ status = NT_STATUS_NO_MEMORY;
+ goto err;
}
}
posix_pathnames = lp_posix_pathnames();
- /* Strip off the stream. Should we use any of the other stream parsing
- * at this point? Also, should we set the is_stream bit? */
+ /*
+ * Strip off the stream, and add it back when we're done with the
+ * base_name.
+ */
if (!posix_pathnames) {
- stream = strchr_m(name, ':');
+ stream = strchr_m(smb_fname->base_name, ':');
if (stream != NULL) {
- char *tmp = talloc_strdup(ctx, stream);
+ char *tmp = talloc_strdup(smb_fname, stream);
if (tmp == NULL) {
- TALLOC_FREE(name);
- return NT_STATUS_NO_MEMORY;
+ status = NT_STATUS_NO_MEMORY;
+ goto err;
}
+ /*
+ * Since this is actually pointing into
+ * smb_fname->base_name this truncates base_name.
+ */
*stream = '\0';
stream = tmp;
}
}
- start = name;
+ start = smb_fname->base_name;
- /* If we're providing case insentive semantics or
+ /*
+ * If we're providing case insentive semantics or
* the underlying filesystem is case insensitive,
* then a case-normalized hit in the stat-cache is
* authoratitive. JRA.
+ *
+ * Note: We're only checking base_name. The stream_name will be
+ * added and verified in build_stream_path().
*/
- if((!conn->case_sensitive || !(conn->fs_capabilities & FILE_CASE_SENSITIVE_SEARCH)) &&
- stat_cache_lookup(conn, &name, &dirpath, &start, &st)) {
- smb_fname->st = st;
+ if((!conn->case_sensitive || !(conn->fs_capabilities &
+ FILE_CASE_SENSITIVE_SEARCH)) &&
+ stat_cache_lookup(conn, &smb_fname->base_name, &dirpath, &start,
+ &smb_fname->st)) {
goto done;
}
@@ -270,43 +287,46 @@ NTSTATUS unix_convert(TALLOC_CTX *ctx,
if ((dirpath == NULL) && (!(dirpath = talloc_strdup(ctx,"")))) {
DEBUG(0, ("talloc_strdup failed\n"));
- TALLOC_FREE(name);
- return NT_STATUS_NO_MEMORY;
+ status = NT_STATUS_NO_MEMORY;
+ goto err;
}
/*
- * stat the name - if it exists then we are all done!
+ * stat the name - if it exists then we can add the stream back (if
+ * there was one) and be done!
*/
if (posix_pathnames) {
- ret = vfs_lstat_smb_fname(conn,name,&st);
+ ret = SMB_VFS_LSTAT(conn, smb_fname);
} else {
- ret = vfs_stat_smb_fname(conn,name,&st);
+ ret = SMB_VFS_STAT(conn, smb_fname);
}
if (ret == 0) {
/* Ensure we catch all names with in "/."
this is disallowed under Windows. */
- const char *p = strstr(name, "/."); /* mb safe. */
+ const char *p = strstr(smb_fname->base_name, "/."); /*mb safe*/
if (p) {
if (p[2] == '/') {
/* Error code within a pathname. */
- result = NT_STATUS_OBJECT_PATH_NOT_FOUND;
+ status = NT_STATUS_OBJECT_PATH_NOT_FOUND;
goto fail;
} else if (p[2] == '\0') {
/* Error code at the end of a pathname. */
- result = NT_STATUS_OBJECT_NAME_INVALID;
+ status = NT_STATUS_OBJECT_NAME_INVALID;
goto fail;
}
}
- stat_cache_add(orig_path, name, conn->case_sensitive);
- DEBUG(5,("conversion finished %s -> %s\n",orig_path, name));
- smb_fname->st = st;
+ /* Add the path (not including the stream) to the cache. */
+ stat_cache_add(orig_path, smb_fname->base_name,
+ conn->case_sensitive);
+ DEBUG(5,("conversion of base_name finished %s -> %s\n",
+ orig_path, smb_fname->base_name));
goto done;
}
DEBUG(5,("unix_convert begin: name = %s, dirpath = %s, start = %s\n",
- name, dirpath, start));
+ smb_fname->base_name, dirpath, start));
/*
* A special case - if we don't have any mangling chars and are case
@@ -314,8 +334,9 @@ NTSTATUS unix_convert(TALLOC_CTX *ctx,
* won't help.
*/
- if ((conn->case_sensitive || !(conn->fs_capabilities & FILE_CASE_SENSITIVE_SEARCH)) &&
- !mangle_is_mangled(name, conn->params)) {
+ if ((conn->case_sensitive || !(conn->fs_capabilities &
+ FILE_CASE_SENSITIVE_SEARCH)) &&
+ !mangle_is_mangled(smb_fname->base_name, conn->params)) {
goto done;
}
@@ -354,11 +375,12 @@ NTSTATUS unix_convert(TALLOC_CTX *ctx,
if (save_last_component) {
TALLOC_FREE(smb_fname->original_lcomp);
- smb_fname->original_lcomp = talloc_strdup(ctx,
+ smb_fname->original_lcomp = talloc_strdup(smb_fname,
end ? end + 1 : start);
if (!smb_fname->original_lcomp) {
DEBUG(0, ("talloc failed\n"));
- return NT_STATUS_NO_MEMORY;
+ status = NT_STATUS_NO_MEMORY;
+ goto err;
}
}
@@ -367,9 +389,9 @@ NTSTATUS unix_convert(TALLOC_CTX *ctx,
if (ISDOT(start)) {
if (!end) {
/* Error code at the end of a pathname. */
- result = NT_STATUS_OBJECT_NAME_INVALID;
+ status = NT_STATUS_OBJECT_NAME_INVALID;
} else {
- result = determine_path_error(end+1,
+ status = determine_path_error(end+1,
allow_wcard_last_component);
}
goto fail;
@@ -382,13 +404,13 @@ NTSTATUS unix_convert(TALLOC_CTX *ctx,
/* Wildcard not valid anywhere. */
if (name_has_wildcard && !allow_wcard_last_component) {
- result = NT_STATUS_OBJECT_NAME_INVALID;
+ status = NT_STATUS_OBJECT_NAME_INVALID;
goto fail;
}
/* Wildcards never valid within a pathname. */
if (name_has_wildcard && end) {
- result = NT_STATUS_OBJECT_NAME_INVALID;
+ status = NT_STATUS_OBJECT_NAME_INVALID;
goto fail;
}
@@ -397,9 +419,9 @@ NTSTATUS unix_convert(TALLOC_CTX *ctx,
*/
if (posix_pathnames) {
- ret = vfs_lstat_smb_fname(conn,name, &st);
+ ret = SMB_VFS_LSTAT(conn, smb_fname);
} else {
- ret = vfs_stat_smb_fname(conn,name, &st);
+ ret = SMB_VFS_STAT(conn, smb_fname);
}
if (ret == 0) {
@@ -407,7 +429,7 @@ NTSTATUS unix_convert(TALLOC_CTX *ctx,
* It exists. it must either be a directory or this must
* be the last part of the path for it to be OK.
*/
- if (end && !S_ISDIR(st.st_ex_mode)) {
+ if (end && !S_ISDIR(smb_fname->st.st_ex_mode)) {
/*
* An intermediate part of the name isn't
* a directory.
@@ -422,25 +444,15 @@ NTSTATUS unix_convert(TALLOC_CTX *ctx,
* applications depend on the difference between
* these two errors.
*/
- result = NT_STATUS_OBJECT_PATH_NOT_FOUND;
+ status = NT_STATUS_OBJECT_PATH_NOT_FOUND;
goto fail;
}
- if (!end) {
- /*
- * We just scanned for, and found the end of
- * the path. We must return the valid stat
- * struct. JRA.
- */
-
- smb_fname->st = st;
- }
-
} else {
char *found_name = NULL;
/* Stat failed - ensure we don't use it. */
- SET_STAT_INVALID(st);
+ SET_STAT_INVALID(smb_fname->st);
/*
* Reset errno so we can detect
@@ -486,11 +498,11 @@ NTSTATUS unix_convert(TALLOC_CTX *ctx,
if (errno == ENOENT ||
errno == ENOTDIR ||
errno == ELOOP) {
- result =
+ status =
NT_STATUS_OBJECT_PATH_NOT_FOUND;
}
else {
- result =
+ status =
map_nt_error_from_unix(errno);
}
goto fail;
@@ -511,10 +523,10 @@ NTSTATUS unix_convert(TALLOC_CTX *ctx,
*/
if (errno == ENOTDIR ||
errno == ELOOP) {
- result =
+ status =
NT_STATUS_OBJECT_PATH_NOT_FOUND;
} else {
- result =
+ status =
map_nt_error_from_unix(errno);
}
goto fail;
@@ -546,12 +558,13 @@ NTSTATUS unix_convert(TALLOC_CTX *ctx,
&unmangled,
conn->params)) {
char *tmp;
- size_t start_ofs = start - name;
+ size_t start_ofs =
+ start - smb_fname->base_name;
if (*dirpath != '\0') {
- tmp = talloc_asprintf(ctx,
- "%s/%s", dirpath,
- unmangled);
+ tmp = talloc_asprintf(
+ smb_fname, "%s/%s",
+ dirpath, unmangled);
TALLOC_FREE(unmangled);
}
else {
@@ -559,11 +572,13 @@ NTSTATUS unix_convert(TALLOC_CTX *ctx,
}
if (tmp == NULL) {
DEBUG(0, ("talloc failed\n"));
- return NT_STATUS_NO_MEMORY;
+ status = NT_STATUS_NO_MEMORY;
+ goto err;
}
- TALLOC_FREE(name);
- name = tmp;
- start = name + start_ofs;
+ TALLOC_FREE(smb_fname->base_name);
+ smb_fname->base_name = tmp;
+ start =
+ smb_fname->base_name + start_ofs;
end = start + strlen(start);
}
@@ -578,46 +593,50 @@ NTSTATUS unix_convert(TALLOC_CTX *ctx,
*/
if (end) {
char *tmp;
- size_t start_ofs = start - name;
+ size_t start_ofs =
+ start - smb_fname->base_name;
if (*dirpath != '\0') {
- tmp = talloc_asprintf(ctx,
+ tmp = talloc_asprintf(smb_fname,
"%s/%s/%s", dirpath,
found_name, end+1);
}
else {
- tmp = talloc_asprintf(ctx,
+ tmp = talloc_asprintf(smb_fname,
"%s/%s", found_name,
end+1);
}
if (tmp == NULL) {
DEBUG(0, ("talloc_asprintf failed\n"));
- return NT_STATUS_NO_MEMORY;
+ status = NT_STATUS_NO_MEMORY;
+ goto err;
}
- TALLOC_FREE(name);
- name = tmp;
- start = name + start_ofs;
+ TALLOC_FREE(smb_fname->base_name);
+ smb_fname->base_name = tmp;
+ start = smb_fname->base_name + start_ofs;
end = start + strlen(found_name);
*end = '\0';
} else {
char *tmp;
- size_t start_ofs = start - name;
+ size_t start_ofs =
+ start - smb_fname->base_name;
if (*dirpath != '\0') {
- tmp = talloc_asprintf(ctx,
+ tmp = talloc_asprintf(smb_fname,
"%s/%s", dirpath,
found_name);
} else {
- tmp = talloc_strdup(ctx,
+ tmp = talloc_strdup(smb_fname,
found_name);
}
if (tmp == NULL) {
DEBUG(0, ("talloc failed\n"));
- return NT_STATUS_NO_MEMORY;
+ status = NT_STATUS_NO_MEMORY;
+ goto err;
}
- TALLOC_FREE(name);
- name = tmp;
- start = name + start_ofs;
+ TALLOC_FREE(smb_fname->base_name);
+ smb_fname->base_name = tmp;
+ start = smb_fname->base_name + start_ofs;
/*
* We just scanned for, and found the end of
@@ -626,17 +645,13 @@ NTSTATUS unix_convert(TALLOC_CTX *ctx,
*/
if (posix_pathnames) {
- ret = vfs_lstat_smb_fname(conn,name,
- &st);
+ ret = SMB_VFS_LSTAT(conn, smb_fname);
} else {
- ret = vfs_stat_smb_fname(conn,name,
- &st);
+ ret = SMB_VFS_STAT(conn, smb_fname);
}
- if (ret == 0) {
- smb_fname->st = st;
- } else {
- SET_STAT_INVALID(st);
+ if (ret != 0) {
+ SET_STAT_INVALID(smb_fname->st);
}
}
@@ -649,12 +664,13 @@ NTSTATUS unix_convert(TALLOC_CTX *ctx,
* We should never provide different behaviors
* depending on DEVELOPER!!!
*/
- if (VALID_STAT(st)) {
+ if (VALID_STAT(smb_fname->st)) {
bool delete_pending;
- get_file_infos(vfs_file_id_from_sbuf(conn, &st),
+ get_file_infos(vfs_file_id_from_sbuf(conn,
+ &smb_fname->st),
&delete_pending, NULL);
if (delete_pending) {
- result = NT_STATUS_DELETE_PENDING;
+ status = NT_STATUS_DELETE_PENDING;
goto fail;
}
}
@@ -669,7 +685,8 @@ NTSTATUS unix_convert(TALLOC_CTX *ctx,
"%s/%s", dirpath, start);
if (!tmp) {
DEBUG(0, ("talloc_asprintf failed\n"));
- return NT_STATUS_NO_MEMORY;
+ status = NT_STATUS_NO_MEMORY;
+ goto err;
}
TALLOC_FREE(dirpath);
dirpath = tmp;
@@ -678,15 +695,15 @@ NTSTATUS unix_convert(TALLOC_CTX *ctx,
TALLOC_FREE(dirpath);
if (!(dirpath = talloc_strdup(ctx,start))) {
DEBUG(0, ("talloc_strdup failed\n"));
- return NT_STATUS_NO_MEMORY;
+ status = NT_STATUS_NO_MEMORY;
+ goto err;
}
}
/*
- * Don't cache a name with mangled or wildcard components
- * as this can change the size.
+ * Cache the dirpath thus far. Don't cache a name with mangled
+ * or wildcard components as this can change the size.
*/
-
if(!component_was_mangled && !name_has_wildcard) {
stat_cache_add(orig_path, dirpath,
conn->case_sensitive);
@@ -701,29 +718,30 @@ NTSTATUS unix_convert(TALLOC_CTX *ctx,
}
/*
- * Don't cache a name with mangled or wildcard components
- * as this can change the size.
+ * Cache the full path. Don't cache a name with mangled or wildcard
+ * components as this can change the size.
*/
if(!component_was_mangled && !name_has_wildcard) {
- stat_cache_add(orig_path, name, conn->case_sensitive);
+ stat_cache_add(orig_path, smb_fname->base_name,
+ conn->case_sensitive);
}
/*
* The name has been resolved.
*/
- DEBUG(5,("conversion finished %s -> %s\n",orig_path, name));
+ DEBUG(5,("conversion finished %s -> %s\n", orig_path,
+ smb_fname->base_name));
done:
- smb_fname->base_name = name;
-
+ /* Add back the stream if one was stripped off originally. */
if (stream != NULL) {
smb_fname->stream_name = stream;
/* Check path now that the base_name has been converted. */
- result = build_stream_path(ctx, conn, orig_path, smb_fname);
- if (!NT_STATUS_IS_OK(result)) {
+ status = build_stream_path(ctx, conn, orig_path, smb_fname);
+ if (!NT_STATUS_IS_OK(status)) {
goto fail;
}
}
@@ -733,20 +751,23 @@ NTSTATUS unix_convert(TALLOC_CTX *ctx,
fail:
DEBUG(10, ("dirpath = [%s] start = [%s]\n", dirpath, start));
if (*dirpath != '\0') {
- smb_fname->base_name = talloc_asprintf(ctx, "%s/%s", dirpath,
- start);
+ smb_fname->base_name = talloc_asprintf(smb_fname, "%s/%s",
+ dirpath, start);
} else {
- smb_fname->base_name = talloc_strdup(ctx, start);
+ smb_fname->base_name = talloc_strdup(smb_fname, start);
}
if (!smb_fname->base_name) {
DEBUG(0, ("talloc_asprintf failed\n"));
- return NT_STATUS_NO_MEMORY;
+ status = NT_STATUS_NO_MEMORY;
+ goto err;
}
*smb_fname_out = smb_fname;
- TALLOC_FREE(name);
TALLOC_FREE(dirpath);
- return result;
+ return status;
+ err:
+ TALLOC_FREE(smb_fname);
+ return status;
}
/****************************************************************************
@@ -942,6 +963,7 @@ static NTSTATUS build_stream_path(TALLOC_CTX *mem_ctx,
struct stream_struct *streams = NULL;
if (SMB_VFS_STAT(conn, smb_fname) == 0) {
+ DEBUG(10, ("'%s' exists\n", smb_fname_str_dbg(smb_fname)));
return NT_STATUS_OK;
}
@@ -988,21 +1010,16 @@ static NTSTATUS build_stream_path(TALLOC_CTX *mem_ctx,
TALLOC_FREE(smb_fname->stream_name);
- smb_fname->stream_name = talloc_strdup(mem_ctx, streams[i].name);
+ smb_fname->stream_name = talloc_strdup(smb_fname, streams[i].name);
+ if (smb_fname->stream_name == NULL) {
+ status = NT_STATUS_NO_MEMORY;
+ goto fail;
+ }
SET_STAT_INVALID(smb_fname->st);
if (SMB_VFS_STAT(conn, smb_fname) == 0) {
- char *result = NULL;
-
- status = get_full_smb_filename(mem_ctx, smb_fname, &result);
- if (!NT_STATUS_IS_OK(status)) {
- status = NT_STATUS_NO_MEMORY;
- goto fail;
- }
-
- stat_cache_add(orig_path, result, conn->case_sensitive);
- TALLOC_FREE(result);
+ DEBUG(10, ("'%s' exists\n", smb_fname_str_dbg(smb_fname)));
}
status = NT_STATUS_OK;
fail:
diff --git a/source3/smbd/statcache.c b/source3/smbd/statcache.c
index daed9f8225..da52cc05d4 100644
--- a/source3/smbd/statcache.c
+++ b/source3/smbd/statcache.c
@@ -175,6 +175,8 @@ bool stat_cache_lookup(connection_struct *conn,
DATA_BLOB data_val;
char *name;
TALLOC_CTX *ctx = talloc_tos();
+ struct smb_filename *smb_fname = NULL;
+ NTSTATUS status;
*pp_dirpath = NULL;
*pp_start = *pp_name;
@@ -274,14 +276,25 @@ bool stat_cache_lookup(connection_struct *conn,
"-> [%s]\n", chk_name, translated_path ));
DO_PROFILE_INC(statcache_hits);
- if (vfs_stat_smb_fname(conn, translated_path, pst) != 0) {
+ status = create_synthetic_smb_fname(talloc_tos(), translated_path,
+ NULL, NULL, &smb_fname);
+ if (!NT_STATUS_IS_OK(status)) {
+ TALLOC_FREE(chk_name);
+ TALLOC_FREE(translated_path);
+ return false;
+ }
+
+ if (SMB_VFS_STAT(conn, smb_fname) != 0) {
/* Discard this entry - it doesn't exist in the filesystem. */
memcache_delete(smbd_memcache(), STAT_CACHE,
data_blob_const(chk_name, strlen(chk_name)));
TALLOC_FREE(chk_name);
TALLOC_FREE(translated_path);
+ TALLOC_FREE(smb_fname);
return False;
}
+ *pst = smb_fname->st;
+ TALLOC_FREE(smb_fname);
if (!sizechanged) {
memcpy(*pp_name, translated_path,
generated by cgit (git 2.34.1) at 2024-11-01 18:45:07 +0000