#include "includes.h"
-static bool scan_directory(connection_struct *conn, const char *path,
- char *name, char **found_name);
static NTSTATUS build_stream_path(TALLOC_CTX *mem_ctx,
connection_struct *conn,
const char *orig_path,
- const char *basepath,
- const char *streamname,
- SMB_STRUCT_STAT *pst,
- char **path);
+ struct smb_filename *smb_fname);
/****************************************************************************
Mangle the 2nd name and check if it is then equal to the first name.
/****************************************************************************
This routine is called to convert names from the dos namespace to unix
-namespace. It needs to handle any case conversions, mangling, format
-changes etc.
+namespace. It needs to handle any case conversions, mangling, format changes,
+streams etc.
We assume that we have already done a chdir() to the right "root" directory
for this service.
The function will return an NTSTATUS error if some part of the name except for
the last part cannot be resolved, else NT_STATUS_OK.
-Note NT_STATUS_OK doesn't mean the name exists or is valid, just that we didn't
-get any fatal errors that should immediately terminate the calling
-SMB processing whilst resolving.
+Note NT_STATUS_OK doesn't mean the name exists or is valid, just that we
+didn't get any fatal errors that should immediately terminate the calling SMB
+processing whilst resolving.
-If the saved_last_component != 0, then the unmodified last component
-of the pathname is returned there. If saved_last_component == 0 then nothing
-is returned there.
+If the UCF_SAVE_LCOMP flag is passed in, then the unmodified last component
+of the pathname is set in smb_filename->original_lcomp.
-If last_component_wcard is true then a MS wildcard was detected and
-should be allowed in the last component of the path only.
+If UCF_ALWAYS_ALLOW_WCARD_LCOMP is passed in, then a MS wildcard was detected
+and should be allowed in the last component of the path only.
-On exit from unix_convert, if *pst was not null, then the file stat
-struct will be returned if the file exists and was found, if not this
-stat struct will be filled with zeros (and this can be detected by checking
-for nlinks = 0, which can never be true for any file).
+If the orig_path was a stream, smb_filename->base_name will point to the base
+filename, and smb_filename->stream_name will point to the stream name. If
+orig_path was not a stream, then smb_filename->stream_name will be NULL.
+
+On exit from unix_convert, the smb_filename->st stat struct will be populated
+if the file exists and was found, if not this stat struct will be filled with
+zeros (and this can be detected by checking for nlinks = 0, which can never be
+true for any file).
****************************************************************************/
NTSTATUS unix_convert(TALLOC_CTX *ctx,
- connection_struct *conn,
- const char *orig_path,
- bool allow_wcard_last_component,
- char **pp_conv_path,
- char **pp_saved_last_component,
- SMB_STRUCT_STAT *pst)
+ connection_struct *conn,
+ const char *orig_path,
+ 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;
- NTSTATUS result;
+ bool posix_pathnames = false;
+ bool allow_wcard_last_component =
+ (ucf_flags & UCF_ALWAYS_ALLOW_WCARD_LCOMP);
+ bool save_last_component = ucf_flags & UCF_SAVE_LCOMP;
+ NTSTATUS status;
+ int ret = -1;
- SET_STAT_INVALID(*pst);
- *pp_conv_path = NULL;
- if(pp_saved_last_component) {
- *pp_saved_last_component = NULL;
+ *smb_fname_out = NULL;
+
+ smb_fname = talloc_zero(ctx, struct smb_filename);
+ if (smb_fname == NULL) {
+ return NT_STATUS_NO_MEMORY;
}
if (conn->printer) {
/* we don't ever use the filenames on a printer share as a
filename - so don't convert them */
- if (!(*pp_conv_path = talloc_strdup(ctx,orig_path))) {
- return NT_STATUS_NO_MEMORY;
+ if (!(smb_fname->base_name = talloc_strdup(smb_fname,
+ orig_path))) {
+ status = NT_STATUS_NO_MEMORY;
+ goto err;
}
- return NT_STATUS_OK;
+ goto done;
}
DEBUG(5, ("unix_convert called on file \"%s\"\n", orig_path));
*/
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 (SMB_VFS_STAT(conn,name,&st) == 0) {
- *pst = 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;
}
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;
+ }
+
+ /* 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"));
+ status = NT_STATUS_NO_MEMORY;
+ goto err;
+ }
+
+ /*
+ * Large directory fix normalization. If we're case sensitive, and
+ * the case preserving parameters are set to "no", normalize the case of
+ * the incoming filename from the client WHETHER IT EXISTS OR NOT !
+ * This is in conflict with the current (3.0.20) man page, but is
+ * what people expect from the "large directory howto". I'll update
+ * the man page. Thanks to jht@samba.org for finding this. JRA.
+ */
+
+ if (conn->case_sensitive && !conn->case_preserve &&
+ !conn->short_case_preserve) {
+ strnorm(smb_fname->base_name, lp_defaultcase(SNUM(conn)));
}
/*
* Ensure saved_last_component is valid even if file exists.
*/
- if(pp_saved_last_component) {
- end = strrchr_m(orig_path, '/');
+ if(save_last_component) {
+ end = strrchr_m(smb_fname->base_name, '/');
if (end) {
- *pp_saved_last_component = talloc_strdup(ctx, end + 1);
+ smb_fname->original_lcomp = talloc_strdup(smb_fname,
+ end + 1);
} else {
- *pp_saved_last_component = talloc_strdup(ctx,
- orig_path);
+ smb_fname->original_lcomp =
+ talloc_strdup(smb_fname, smb_fname->base_name);
}
- if (conn->case_sensitive && !conn->case_preserve &&
- !conn->short_case_preserve) {
- strnorm(*pp_saved_last_component,
- lp_defaultcase(SNUM(conn)));
+ if (smb_fname->original_lcomp == NULL) {
+ status = NT_STATUS_NO_MEMORY;
+ goto err;
}
}
- if (!(name = talloc_strdup(ctx, orig_path))) {
- DEBUG(0, ("talloc_strdup failed\n"));
- return NT_STATUS_NO_MEMORY;
- }
+ posix_pathnames = (lp_posix_pathnames() ||
+ (ucf_flags & UCF_POSIX_PATHNAMES));
- if (!lp_posix_pathnames()) {
- stream = strchr_m(name, ':');
+ /*
+ * Strip off the stream, and add it back when we're done with the
+ * base_name.
+ */
+ if (!posix_pathnames) {
+ 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;
}
}
- /*
- * Large directory fix normalization. If we're case sensitive, and
- * the case preserving parameters are set to "no", normalize the case of
- * the incoming filename from the client WHETHER IT EXISTS OR NOT !
- * This is in conflict with the current (3.0.20) man page, but is
- * what people expect from the "large directory howto". I'll update
- * the man page. Thanks to jht@samba.org for finding this. JRA.
- */
-
- if (conn->case_sensitive && !conn->case_preserve &&
- !conn->short_case_preserve) {
- strnorm(name, lp_defaultcase(SNUM(conn)));
- }
-
- 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)) {
- *pst = 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;
}
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 (SMB_VFS_STAT(conn,name,&st) == 0) {
+ if (posix_pathnames) {
+ ret = SMB_VFS_LSTAT(conn, smb_fname);
+ } else {
+ 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));
- *pst = 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
* 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;
}
*end = 0;
}
- if (pp_saved_last_component) {
- TALLOC_FREE(*pp_saved_last_component);
- *pp_saved_last_component = talloc_strdup(ctx,
+ if (save_last_component) {
+ TALLOC_FREE(smb_fname->original_lcomp);
+ smb_fname->original_lcomp = talloc_strdup(smb_fname,
end ? end + 1 : start);
- if (!*pp_saved_last_component) {
+ if (!smb_fname->original_lcomp) {
DEBUG(0, ("talloc failed\n"));
- return NT_STATUS_NO_MEMORY;
+ status = NT_STATUS_NO_MEMORY;
+ goto err;
}
}
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;
/* 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;
}
* Check if the name exists up to this point.
*/
- if (SMB_VFS_STAT(conn,name, &st) == 0) {
+ if (posix_pathnames) {
+ ret = SMB_VFS_LSTAT(conn, smb_fname);
+ } else {
+ ret = SMB_VFS_STAT(conn, smb_fname);
+ }
+
+ if (ret == 0) {
/*
* 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 && !(st.st_mode & S_IFDIR)) {
+ if (end && !S_ISDIR(smb_fname->st.st_ex_mode)) {
/*
* An intermediate part of the name isn't
* a directory.
* 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.
- */
-
- *pst = 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
*/
if (name_has_wildcard ||
- !scan_directory(conn, dirpath,
- start, &found_name)) {
+ (get_real_filename(conn, dirpath, start,
+ talloc_tos(),
+ &found_name) == -1)) {
char *unmangled;
if (end) {
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;
}
- /* ENOENT is the only valid error here. */
- if ((errno != 0) && (errno != ENOENT)) {
+ /*
+ * ENOENT/EACCESS are the only valid errors
+ * here. EACCESS needs handling here for
+ * "dropboxes", i.e. directories where users
+ * can only put stuff with permission -wx.
+ */
+ if ((errno != 0) && (errno != ENOENT)
+ && (errno != EACCES)) {
/*
* ENOTDIR and ELOOP both map to
* NT_STATUS_OBJECT_PATH_NOT_FOUND
*/
if (errno == ENOTDIR ||
errno == ELOOP) {
- result =
+ status =
NT_STATUS_OBJECT_PATH_NOT_FOUND;
- }
- else {
- result =
+ } else {
+ status =
map_nt_error_from_unix(errno);
}
goto fail;
&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 {
}
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);
}
*/
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
* if it exists. JRA.
*/
- if (SMB_VFS_STAT(conn,name, &st) == 0) {
- *pst = st;
+ if (posix_pathnames) {
+ ret = SMB_VFS_LSTAT(conn, smb_fname);
} else {
- SET_STAT_INVALID(st);
+ ret = SMB_VFS_STAT(conn, smb_fname);
+ }
+
+ if (ret != 0) {
+ SET_STAT_INVALID(smb_fname->st);
}
}
* 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;
}
}
"%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;
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);
}
/*
- * 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:
+ /* Add back the stream if one was stripped off originally. */
if (stream != NULL) {
- char *tmp = NULL;
+ smb_fname->stream_name = stream;
- result = build_stream_path(ctx, conn, orig_path, name, stream,
- pst, &tmp);
- if (!NT_STATUS_IS_OK(result)) {
+ /* Check path now that the base_name has been converted. */
+ status = build_stream_path(ctx, conn, orig_path, smb_fname);
+ if (!NT_STATUS_IS_OK(status)) {
goto fail;
}
-
- DEBUG(10, ("build_stream_path returned %s\n", tmp));
-
- TALLOC_FREE(name);
- name = tmp;
}
- *pp_conv_path = name;
TALLOC_FREE(dirpath);
+ *smb_fname_out = smb_fname;
return NT_STATUS_OK;
fail:
DEBUG(10, ("dirpath = [%s] start = [%s]\n", dirpath, start));
if (*dirpath != '\0') {
- *pp_conv_path = talloc_asprintf(ctx,
- "%s/%s", dirpath, start);
+ smb_fname->base_name = talloc_asprintf(smb_fname, "%s/%s",
+ dirpath, start);
} else {
- *pp_conv_path = talloc_strdup(ctx, start);
+ smb_fname->base_name = talloc_strdup(smb_fname, start);
}
- if (!*pp_conv_path) {
+ if (!smb_fname->base_name) {
DEBUG(0, ("talloc_asprintf failed\n"));
- return NT_STATUS_NO_MEMORY;
+ status = NT_STATUS_NO_MEMORY;
+ goto err;
}
- TALLOC_FREE(name);
+
+ *smb_fname_out = smb_fname;
TALLOC_FREE(dirpath);
- return result;
+ return status;
+ err:
+ TALLOC_FREE(smb_fname);
+ return status;
}
/****************************************************************************
If the name looks like a mangled name then try via the mangling functions
****************************************************************************/
-static bool scan_directory(connection_struct *conn, const char *path,
- char *name, char **found_name)
+static int get_real_filename_full_scan(connection_struct *conn,
+ const char *path, const char *name,
+ bool mangled,
+ TALLOC_CTX *mem_ctx, char **found_name)
{
struct smb_Dir *cur_dir;
- const char *dname;
- bool mangled;
+ const char *dname = NULL;
+ char *talloced = NULL;
char *unmangled_name = NULL;
long curpos;
- TALLOC_CTX *ctx = talloc_tos();
-
- mangled = mangle_is_mangled(name, conn->params);
/* handle null paths */
if ((path == NULL) || (*path == 0)) {
*/
if (!mangled && !(conn->fs_capabilities & FILE_CASE_SENSITIVE_SEARCH)) {
errno = ENOENT;
- return False;
+ return -1;
}
/*
*/
if (mangled && !conn->case_sensitive) {
- mangled = !mangle_lookup_name_from_8_3(ctx,
- name,
- &unmangled_name,
- conn->params);
+ mangled = !mangle_lookup_name_from_8_3(talloc_tos(), name,
+ &unmangled_name,
+ conn->params);
if (!mangled) {
/* Name is now unmangled. */
name = unmangled_name;
if (!(cur_dir = OpenDir(talloc_tos(), conn, path, NULL, 0))) {
DEBUG(3,("scan dir didn't open dir [%s]\n",path));
TALLOC_FREE(unmangled_name);
- return(False);
+ return -1;
}
/* now scan for matching names */
curpos = 0;
- while ((dname = ReadDirName(cur_dir, &curpos))) {
+ while ((dname = ReadDirName(cur_dir, &curpos, NULL, &talloced))) {
/* Is it dot or dot dot. */
if (ISDOT(dname) || ISDOTDOT(dname)) {
+ TALLOC_FREE(talloced);
continue;
}
if ((mangled && mangled_equal(name,dname,conn->params)) ||
fname_equal(name, dname, conn->case_sensitive)) {
/* we've found the file, change it's name and return */
- *found_name = talloc_strdup(ctx,dname);
+ *found_name = talloc_strdup(mem_ctx, dname);
TALLOC_FREE(unmangled_name);
TALLOC_FREE(cur_dir);
if (!*found_name) {
errno = ENOMEM;
- return False;
+ TALLOC_FREE(talloced);
+ return -1;
}
- return(True);
+ TALLOC_FREE(talloced);
+ return 0;
}
+ TALLOC_FREE(talloced);
}
TALLOC_FREE(unmangled_name);
TALLOC_FREE(cur_dir);
errno = ENOENT;
- return False;
+ return -1;
+}
+
+/****************************************************************************
+ Wrapper around the vfs get_real_filename and the full directory scan
+ fallback.
+****************************************************************************/
+
+int get_real_filename(connection_struct *conn, const char *path,
+ const char *name, TALLOC_CTX *mem_ctx,
+ char **found_name)
+{
+ int ret;
+ bool mangled;
+
+ mangled = mangle_is_mangled(name, conn->params);
+
+ if (mangled) {
+ return get_real_filename_full_scan(conn, path, name, mangled,
+ mem_ctx, found_name);
+ }
+
+ /* Try the vfs first to take advantage of case-insensitive stat. */
+ ret = SMB_VFS_GET_REAL_FILENAME(conn, path, name, mem_ctx, found_name);
+
+ /*
+ * If the case-insensitive stat was successful, or returned an error
+ * other than EOPNOTSUPP then there is no need to fall back on the
+ * full directory scan.
+ */
+ if (ret == 0 || (ret == -1 && errno != EOPNOTSUPP)) {
+ return ret;
+ }
+
+ return get_real_filename_full_scan(conn, path, name, mangled, mem_ctx,
+ found_name);
}
static NTSTATUS build_stream_path(TALLOC_CTX *mem_ctx,
connection_struct *conn,
const char *orig_path,
- const char *basepath,
- const char *streamname,
- SMB_STRUCT_STAT *pst,
- char **path)
+ struct smb_filename *smb_fname)
{
- SMB_STRUCT_STAT st;
- char *result = NULL;
NTSTATUS status;
unsigned int i, num_streams;
struct stream_struct *streams = NULL;
- result = talloc_asprintf(mem_ctx, "%s%s", basepath, streamname);
- if (result == NULL) {
- return NT_STATUS_NO_MEMORY;
- }
-
- if (SMB_VFS_STAT(conn, result, &st) == 0) {
- *pst = st;
- *path = result;
+ if (SMB_VFS_STAT(conn, smb_fname) == 0) {
+ DEBUG(10, ("'%s' exists\n", smb_fname_str_dbg(smb_fname)));
return NT_STATUS_OK;
}
if (errno != ENOENT) {
+ DEBUG(10, ("vfs_stat failed: %s\n", strerror(errno)));
status = map_nt_error_from_unix(errno);
- DEBUG(10, ("vfs_stat failed: %s\n", nt_errstr(status)));
goto fail;
}
- status = SMB_VFS_STREAMINFO(conn, NULL, basepath, mem_ctx,
+ /* Fall back to a case-insensitive scan of all streams on the file. */
+ status = SMB_VFS_STREAMINFO(conn, NULL, smb_fname->base_name, mem_ctx,
&num_streams, &streams);
if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
- SET_STAT_INVALID(*pst);
- *path = result;
+ SET_STAT_INVALID(smb_fname->st);
return NT_STATUS_OK;
}
for (i=0; i<num_streams; i++) {
DEBUG(10, ("comparing [%s] and [%s]: ",
- streamname, streams[i].name));
- if (fname_equal(streamname, streams[i].name,
+ smb_fname->stream_name, streams[i].name));
+ if (fname_equal(smb_fname->stream_name, streams[i].name,
conn->case_sensitive)) {
DEBUGADD(10, ("equal\n"));
break;
DEBUGADD(10, ("not equal\n"));
}
+ /* Couldn't find the stream. */
if (i == num_streams) {
- SET_STAT_INVALID(*pst);
- *path = result;
+ SET_STAT_INVALID(smb_fname->st);
TALLOC_FREE(streams);
return NT_STATUS_OK;
}
- TALLOC_FREE(result);
+ DEBUG(10, ("case insensitive stream. requested: %s, actual: %s\n",
+ smb_fname->stream_name, streams[i].name));
+
- result = talloc_asprintf(mem_ctx, "%s%s", basepath, streams[i].name);
- if (result == NULL) {
+ TALLOC_FREE(smb_fname->stream_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(*pst);
+ SET_STAT_INVALID(smb_fname->st);
- if (SMB_VFS_STAT(conn, result, pst) == 0) {
- stat_cache_add(orig_path, result, conn->case_sensitive);
+ if (SMB_VFS_STAT(conn, smb_fname) == 0) {
+ DEBUG(10, ("'%s' exists\n", smb_fname_str_dbg(smb_fname)));
}
-
- *path = result;
- TALLOC_FREE(streams);
- return NT_STATUS_OK;
-
+ status = NT_STATUS_OK;
fail:
- TALLOC_FREE(result);
TALLOC_FREE(streams);
return status;
}
+
+/**
+ * Go through all the steps to validate a filename.
+ *
+ * @param ctx talloc_ctx to allocate memory with.
+ * @param conn connection struct for vfs calls.
+ * @param dfs_path Whether this path requires dfs resolution.
+ * @param name_in The unconverted name.
+ * @param ucf_flags flags to pass through to unix_convert().
+ * UCF_ALWAYS_ALLOW_WCARD_LCOMP will be OR'd in if
+ * p_cont_wcard != NULL and is true and
+ * UCF_COND_ALLOW_WCARD_LCOMP.
+ * @param p_cont_wcard If not NULL, will be set to true if the dfs path
+ * resolution detects a wildcard.
+ * @param pp_smb_fname The final converted name will be allocated if the
+ * return is NT_STATUS_OK.
+ *
+ * @return NT_STATUS_OK if all operations completed succesfully, appropriate
+ * error otherwise.
+ */
+NTSTATUS filename_convert(TALLOC_CTX *ctx,
+ connection_struct *conn,
+ bool dfs_path,
+ const char *name_in,
+ uint32_t ucf_flags,
+ bool *ppath_contains_wcard,
+ struct smb_filename **pp_smb_fname)
+{
+ NTSTATUS status;
+ char *fname = NULL;
+
+ *pp_smb_fname = NULL;
+
+ status = resolve_dfspath_wcard(ctx, conn,
+ dfs_path,
+ name_in,
+ &fname,
+ ppath_contains_wcard);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(10,("filename_convert: resolve_dfspath failed "
+ "for name %s with %s\n",
+ name_in,
+ nt_errstr(status) ));
+ return status;
+ }
+
+ if (is_fake_file_path(name_in)) {
+ SMB_STRUCT_STAT st;
+ ZERO_STRUCT(st);
+ st.st_ex_nlink = 1;
+ status = create_synthetic_smb_fname_split(ctx,
+ name_in,
+ &st,
+ pp_smb_fname);
+ return status;
+ }
+
+ /*
+ * If the caller conditionally allows wildcard lookups, only add the
+ * always allow if the path actually does contain a wildcard.
+ */
+ if (ucf_flags & UCF_COND_ALLOW_WCARD_LCOMP &&
+ ppath_contains_wcard != NULL && *ppath_contains_wcard) {
+ ucf_flags |= UCF_ALWAYS_ALLOW_WCARD_LCOMP;
+ }
+
+ status = unix_convert(ctx, conn, fname, pp_smb_fname, ucf_flags);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(10,("filename_convert: unix_convert failed "
+ "for name %s with %s\n",
+ fname,
+ nt_errstr(status) ));
+ return status;
+ }
+
+ status = check_name(conn, (*pp_smb_fname)->base_name);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(3,("filename_convert: check_name failed "
+ "for name %s with %s\n",
+ smb_fname_str_dbg(*pp_smb_fname),
+ nt_errstr(status) ));
+ TALLOC_FREE(*pp_smb_fname);
+ return status;
+ }
+
+ return status;
+}
git.samba.org / ira / wip.git / blobdiff