bool done;
};
+static NTSTATUS unix_convert_step(struct uc_state *state)
+{
+ NTSTATUS status;
+ int ret;
+
+ /*
+ * Pinpoint the end of this section of the filename.
+ */
+ /* mb safe. '/' can't be in any encoded char. */
+ state->end = strchr(state->name, '/');
+
+ /*
+ * Chop the name at this point.
+ */
+ if (state->end) {
+ *state->end = 0;
+ }
+
+ /* The name cannot have a component of "." */
+
+ if (ISDOT(state->name)) {
+ if (!state->end) {
+ /* Error code at the end of a pathname. */
+ status = NT_STATUS_OBJECT_NAME_INVALID;
+ } else {
+ status = determine_path_error(state->end+1,
+ state->allow_wcard_last_component,
+ state->posix_pathnames);
+ }
+ goto fail;
+ }
+
+ /* The name cannot have a wildcard if it's not
+ the last component. */
+
+ if (!state->posix_pathnames) {
+ state->name_has_wildcard = ms_has_wild(state->name);
+ }
+
+ /* Wildcards never valid within a pathname. */
+ if (state->name_has_wildcard && state->end) {
+ status = NT_STATUS_OBJECT_NAME_INVALID;
+ goto fail;
+ }
+
+ /* Skip the stat call if it's a wildcard end. */
+ if (state->name_has_wildcard) {
+ DBG_DEBUG("Wildcard [%s]\n", state->name);
+ goto done;
+ }
+
+ /*
+ * Check if the name exists up to this point.
+ */
+
+ if (state->posix_pathnames) {
+ ret = SMB_VFS_LSTAT(state->conn, state->smb_fname);
+ } else {
+ ret = SMB_VFS_STAT(state->conn, state->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 (state->end && !S_ISDIR(state->smb_fname->st.st_ex_mode)) {
+ /*
+ * An intermediate part of the name isn't
+ * a directory.
+ */
+ DBG_DEBUG("Not a dir [%s]\n", state->name);
+ *state->end = '/';
+ /*
+ * We need to return the fact that the
+ * intermediate name resolution failed. This
+ * is used to return an error of ERRbadpath
+ * rather than ERRbadfile. Some Windows
+ * applications depend on the difference between
+ * these two errors.
+ */
+ status = NT_STATUS_OBJECT_PATH_NOT_FOUND;
+ goto fail;
+ }
+
+ } else {
+ char *found_name = NULL;
+
+ /* Stat failed - ensure we don't use it. */
+ SET_STAT_INVALID(state->smb_fname->st);
+
+ if (state->posix_pathnames) {
+ /*
+ * For posix_pathnames, we're done.
+ * Don't blunder into the name_has_wildcard OR
+ * get_real_filename() codepaths as they may
+ * be doing case insensitive lookups. So when
+ * creating a new POSIX directory Foo they might
+ * match on name foo.
+ *
+ * BUG: https://bugzilla.samba.org/show_bug.cgi?id=13803
+ */
+ if (state->end != NULL) {
+ const char *morepath = NULL;
+ /*
+ * If this is intermediate we must
+ * restore the full path.
+ */
+ *state->end = '/';
+ /*
+ * If there are any more components
+ * after the failed LSTAT we cannot
+ * continue.
+ */
+ morepath = strchr(state->end + 1, '/');
+ if (morepath != NULL) {
+ status = NT_STATUS_OBJECT_PATH_NOT_FOUND;
+ goto fail;
+ }
+ }
+ if (errno == ENOENT) {
+ /* New file or directory. */
+ goto done;
+ }
+ if ((errno == EACCES) &&
+ (state->ucf_flags & UCF_PREP_CREATEFILE)) {
+ /* POSIX Dropbox case. */
+ errno = 0;
+ goto done;
+ }
+ status = map_nt_error_from_unix(errno);
+ goto fail;
+ }
+
+ /*
+ * Reset errno so we can detect
+ * directory open errors.
+ */
+ errno = 0;
+
+ /*
+ * Try to find this part of the path in the directory.
+ */
+
+ if (state->name_has_wildcard ||
+ (get_real_filename(state->conn, state->dirpath, state->name,
+ talloc_tos(),
+ &found_name) == -1)) {
+ char *unmangled;
+
+ if (state->end) {
+ /*
+ * An intermediate part of the name
+ * can't be found.
+ */
+ DBG_DEBUG("Intermediate [%s] missing\n",
+ state->name);
+ *state->end = '/';
+
+ /*
+ * We need to return the fact that the
+ * intermediate name resolution failed.
+ * This is used to return an error of
+ * ERRbadpath rather than ERRbadfile.
+ * Some Windows applications depend on
+ * the difference between these two
+ * errors.
+ */
+
+ /*
+ * ENOENT, ENOTDIR and ELOOP all map
+ * to NT_STATUS_OBJECT_PATH_NOT_FOUND
+ * in the filename walk.
+ */
+
+ if (errno == ENOENT ||
+ errno == ENOTDIR ||
+ errno == ELOOP) {
+ status =
+ NT_STATUS_OBJECT_PATH_NOT_FOUND;
+ }
+ else {
+ status =
+ map_nt_error_from_unix(errno);
+ }
+ goto fail;
+ }
+
+ /*
+ * ENOENT/EACCESS are the only valid errors
+ * here.
+ */
+
+ if (errno == EACCES) {
+ if ((state->ucf_flags & UCF_PREP_CREATEFILE) == 0) {
+ status = NT_STATUS_ACCESS_DENIED;
+ goto fail;
+ } else {
+ /*
+ * This is the dropbox
+ * behaviour. A dropbox is a
+ * directory with only -wx
+ * permissions, so
+ * get_real_filename fails
+ * with EACCESS, it needs to
+ * list the directory. We
+ * nevertheless want to allow
+ * users creating a file.
+ */
+ errno = 0;
+ }
+ }
+
+ if ((errno != 0) && (errno != ENOENT)) {
+ /*
+ * ENOTDIR and ELOOP both map to
+ * NT_STATUS_OBJECT_PATH_NOT_FOUND
+ * in the filename walk.
+ */
+ if (errno == ENOTDIR ||
+ errno == ELOOP) {
+ status =
+ NT_STATUS_OBJECT_PATH_NOT_FOUND;
+ } else {
+ status =
+ map_nt_error_from_unix(errno);
+ }
+ goto fail;
+ }
+
+ /*
+ * Just the last part of the name doesn't exist.
+ * We need to strupper() or strlower() it as
+ * this conversion may be used for file creation
+ * purposes. Fix inspired by
+ * Thomas Neumann <t.neumann@iku-ag.de>.
+ */
+ if (!state->conn->case_preserve ||
+ (mangle_is_8_3(state->name, false,
+ state->conn->params) &&
+ !state->conn->short_case_preserve)) {
+ if (!strnorm(state->name,
+ lp_default_case(SNUM(state->conn)))) {
+ DBG_DEBUG("strnorm %s failed\n",
+ state->name);
+ status = NT_STATUS_INVALID_PARAMETER;
+ goto fail;
+ }
+ }
+
+ /*
+ * check on the mangled stack to see if we can
+ * recover the base of the filename.
+ */
+
+ if (mangle_is_mangled(state->name, state->conn->params)
+ && mangle_lookup_name_from_8_3(state->mem_ctx,
+ state->name,
+ &unmangled,
+ state->conn->params)) {
+ char *tmp;
+ size_t name_ofs =
+ state->name - state->smb_fname->base_name;
+
+ if (!ISDOT(state->dirpath)) {
+ tmp = talloc_asprintf(
+ state->smb_fname, "%s/%s",
+ state->dirpath, unmangled);
+ TALLOC_FREE(unmangled);
+ }
+ else {
+ tmp = unmangled;
+ }
+ if (tmp == NULL) {
+ DBG_ERR("talloc failed\n");
+ status = NT_STATUS_NO_MEMORY;
+ goto err;
+ }
+ TALLOC_FREE(state->smb_fname->base_name);
+ state->smb_fname->base_name = tmp;
+ state->name =
+ state->smb_fname->base_name + name_ofs;
+ state->end = state->name + strlen(state->name);
+ }
+
+ DBG_DEBUG("New file [%s]\n", state->name);
+ goto done;
+ }
+
+
+ /*
+ * Restore the rest of the string. If the string was
+ * mangled the size may have changed.
+ */
+ if (state->end) {
+ char *tmp;
+ size_t name_ofs =
+ state->name - state->smb_fname->base_name;
+
+ if (!ISDOT(state->dirpath)) {
+ tmp = talloc_asprintf(state->smb_fname,
+ "%s/%s/%s", state->dirpath,
+ found_name, state->end+1);
+ }
+ else {
+ tmp = talloc_asprintf(state->smb_fname,
+ "%s/%s", found_name,
+ state->end+1);
+ }
+ if (tmp == NULL) {
+ DBG_ERR("talloc_asprintf failed\n");
+ status = NT_STATUS_NO_MEMORY;
+ goto err;
+ }
+ TALLOC_FREE(state->smb_fname->base_name);
+ state->smb_fname->base_name = tmp;
+ state->name = state->smb_fname->base_name + name_ofs;
+ state->end = state->name + strlen(found_name);
+ *state->end = '\0';
+ } else {
+ char *tmp;
+ size_t name_ofs =
+ state->name - state->smb_fname->base_name;
+
+ if (!ISDOT(state->dirpath)) {
+ tmp = talloc_asprintf(state->smb_fname,
+ "%s/%s", state->dirpath,
+ found_name);
+ } else {
+ tmp = talloc_strdup(state->smb_fname,
+ found_name);
+ }
+ if (tmp == NULL) {
+ DBG_ERR("talloc failed\n");
+ status = NT_STATUS_NO_MEMORY;
+ goto err;
+ }
+ TALLOC_FREE(state->smb_fname->base_name);
+ state->smb_fname->base_name = tmp;
+ state->name = state->smb_fname->base_name + name_ofs;
+
+ /*
+ * We just scanned for, and found the end of
+ * the path. We must return a valid stat struct
+ * if it exists. JRA.
+ */
+
+ if (state->posix_pathnames) {
+ ret = SMB_VFS_LSTAT(state->conn, state->smb_fname);
+ } else {
+ ret = SMB_VFS_STAT(state->conn, state->smb_fname);
+ }
+
+ if (ret != 0) {
+ SET_STAT_INVALID(state->smb_fname->st);
+ }
+ }
+
+ TALLOC_FREE(found_name);
+ } /* end else */
+
+ /*
+ * Add to the dirpath that we have resolved so far.
+ */
+
+ if (!ISDOT(state->dirpath)) {
+ char *tmp = talloc_asprintf(state->mem_ctx,
+ "%s/%s", state->dirpath, state->name);
+ if (!tmp) {
+ DBG_ERR("talloc_asprintf failed\n");
+ status = NT_STATUS_NO_MEMORY;
+ goto err;
+ }
+ TALLOC_FREE(state->dirpath);
+ state->dirpath = tmp;
+ }
+ else {
+ TALLOC_FREE(state->dirpath);
+ if (!(state->dirpath = talloc_strdup(state->mem_ctx,state->name))) {
+ DBG_ERR("talloc_strdup failed\n");
+ status = NT_STATUS_NO_MEMORY;
+ goto err;
+ }
+ }
+
+ /*
+ * Cache the dirpath thus far. Don't cache a name with mangled
+ * or wildcard components as this can change the size.
+ */
+ if(!state->component_was_mangled && !state->name_has_wildcard) {
+ stat_cache_add(state->orig_path, state->dirpath,
+ state->conn->case_sensitive);
+ }
+
+ /*
+ * Restore the / that we wiped out earlier.
+ */
+ if (state->end) {
+ *state->end = '/';
+ }
+
+ return NT_STATUS_OK;
+done:
+ state->done = true;
+ return NT_STATUS_OK;
+err:
+fail:
+ return status;
+}
+
NTSTATUS unix_convert(TALLOC_CTX *mem_ctx,
connection_struct *conn,
const char *orig_path,
*/
for (; state->name ; state->name = (state->end ? state->end + 1:(char *)NULL)) {
- /*
- * Pinpoint the end of this section of the filename.
- */
- /* mb safe. '/' can't be in any encoded char. */
- state->end = strchr(state->name, '/');
-
- /*
- * Chop the name at this point.
- */
- if (state->end) {
- *state->end = 0;
- }
-
- /* The name cannot have a component of "." */
-
- if (ISDOT(state->name)) {
- if (!state->end) {
- /* Error code at the end of a pathname. */
- status = NT_STATUS_OBJECT_NAME_INVALID;
- } else {
- status = determine_path_error(state->end+1,
- state->allow_wcard_last_component,
- state->posix_pathnames);
+ status = unix_convert_step(state);
+ if (!NT_STATUS_IS_OK(status)) {
+ if (NT_STATUS_EQUAL(status, NT_STATUS_NO_MEMORY)) {
+ goto err;
}
goto fail;
}
-
- /* The name cannot have a wildcard if it's not
- the last component. */
-
- if (!state->posix_pathnames) {
- state->name_has_wildcard = ms_has_wild(state->name);
- }
-
- /* Wildcards never valid within a pathname. */
- if (state->name_has_wildcard && state->end) {
- status = NT_STATUS_OBJECT_NAME_INVALID;
- goto fail;
- }
-
- /* Skip the stat call if it's a wildcard end. */
- if (state->name_has_wildcard) {
- DBG_DEBUG("Wildcard [%s]\n", state->name);
+ if (state->done) {
goto done;
}
-
- /*
- * Check if the name exists up to this point.
- */
-
- if (state->posix_pathnames) {
- ret = SMB_VFS_LSTAT(state->conn, state->smb_fname);
- } else {
- ret = SMB_VFS_STAT(state->conn, state->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 (state->end && !S_ISDIR(state->smb_fname->st.st_ex_mode)) {
- /*
- * An intermediate part of the name isn't
- * a directory.
- */
- DBG_DEBUG("Not a dir [%s]\n", state->name);
- *state->end = '/';
- /*
- * We need to return the fact that the
- * intermediate name resolution failed. This
- * is used to return an error of ERRbadpath
- * rather than ERRbadfile. Some Windows
- * applications depend on the difference between
- * these two errors.
- */
- status = NT_STATUS_OBJECT_PATH_NOT_FOUND;
- goto fail;
- }
-
- } else {
- char *found_name = NULL;
-
- /* Stat failed - ensure we don't use it. */
- SET_STAT_INVALID(state->smb_fname->st);
-
- if (state->posix_pathnames) {
- /*
- * For posix_pathnames, we're done.
- * Don't blunder into the name_has_wildcard OR
- * get_real_filename() codepaths as they may
- * be doing case insensitive lookups. So when
- * creating a new POSIX directory Foo they might
- * match on name foo.
- *
- * BUG: https://bugzilla.samba.org/show_bug.cgi?id=13803
- */
- if (state->end != NULL) {
- const char *morepath = NULL;
- /*
- * If this is intermediate we must
- * restore the full path.
- */
- *state->end = '/';
- /*
- * If there are any more components
- * after the failed LSTAT we cannot
- * continue.
- */
- morepath = strchr(state->end + 1, '/');
- if (morepath != NULL) {
- status = NT_STATUS_OBJECT_PATH_NOT_FOUND;
- goto fail;
- }
- }
- if (errno == ENOENT) {
- /* New file or directory. */
- goto done;
- }
- if ((errno == EACCES) &&
- (state->ucf_flags & UCF_PREP_CREATEFILE)) {
- /* POSIX Dropbox case. */
- errno = 0;
- goto done;
- }
- status = map_nt_error_from_unix(errno);
- goto fail;
- }
-
- /*
- * Reset errno so we can detect
- * directory open errors.
- */
- errno = 0;
-
- /*
- * Try to find this part of the path in the directory.
- */
-
- if (state->name_has_wildcard ||
- (get_real_filename(state->conn, state->dirpath, state->name,
- talloc_tos(),
- &found_name) == -1)) {
- char *unmangled;
-
- if (state->end) {
- /*
- * An intermediate part of the name
- * can't be found.
- */
- DBG_DEBUG("Intermediate [%s] missing\n",
- state->name);
- *state->end = '/';
-
- /*
- * We need to return the fact that the
- * intermediate name resolution failed.
- * This is used to return an error of
- * ERRbadpath rather than ERRbadfile.
- * Some Windows applications depend on
- * the difference between these two
- * errors.
- */
-
- /*
- * ENOENT, ENOTDIR and ELOOP all map
- * to NT_STATUS_OBJECT_PATH_NOT_FOUND
- * in the filename walk.
- */
-
- if (errno == ENOENT ||
- errno == ENOTDIR ||
- errno == ELOOP) {
- status =
- NT_STATUS_OBJECT_PATH_NOT_FOUND;
- }
- else {
- status =
- map_nt_error_from_unix(errno);
- }
- goto fail;
- }
-
- /*
- * ENOENT/EACCESS are the only valid errors
- * here.
- */
-
- if (errno == EACCES) {
- if ((state->ucf_flags & UCF_PREP_CREATEFILE) == 0) {
- status = NT_STATUS_ACCESS_DENIED;
- goto fail;
- } else {
- /*
- * This is the dropbox
- * behaviour. A dropbox is a
- * directory with only -wx
- * permissions, so
- * get_real_filename fails
- * with EACCESS, it needs to
- * list the directory. We
- * nevertheless want to allow
- * users creating a file.
- */
- errno = 0;
- }
- }
-
- if ((errno != 0) && (errno != ENOENT)) {
- /*
- * ENOTDIR and ELOOP both map to
- * NT_STATUS_OBJECT_PATH_NOT_FOUND
- * in the filename walk.
- */
- if (errno == ENOTDIR ||
- errno == ELOOP) {
- status =
- NT_STATUS_OBJECT_PATH_NOT_FOUND;
- } else {
- status =
- map_nt_error_from_unix(errno);
- }
- goto fail;
- }
-
- /*
- * Just the last part of the name doesn't exist.
- * We need to strupper() or strlower() it as
- * this conversion may be used for file creation
- * purposes. Fix inspired by
- * Thomas Neumann <t.neumann@iku-ag.de>.
- */
- if (!state->conn->case_preserve ||
- (mangle_is_8_3(state->name, false,
- state->conn->params) &&
- !state->conn->short_case_preserve)) {
- if (!strnorm(state->name,
- lp_default_case(SNUM(state->conn)))) {
- DBG_DEBUG("strnorm %s failed\n",
- state->name);
- status = NT_STATUS_INVALID_PARAMETER;
- goto fail;
- }
- }
-
- /*
- * check on the mangled stack to see if we can
- * recover the base of the filename.
- */
-
- if (mangle_is_mangled(state->name, state->conn->params)
- && mangle_lookup_name_from_8_3(state->mem_ctx,
- state->name,
- &unmangled,
- state->conn->params)) {
- char *tmp;
- size_t name_ofs =
- state->name - state->smb_fname->base_name;
-
- if (!ISDOT(state->dirpath)) {
- tmp = talloc_asprintf(
- state->smb_fname, "%s/%s",
- state->dirpath, unmangled);
- TALLOC_FREE(unmangled);
- }
- else {
- tmp = unmangled;
- }
- if (tmp == NULL) {
- DBG_ERR("talloc failed\n");
- status = NT_STATUS_NO_MEMORY;
- goto err;
- }
- TALLOC_FREE(state->smb_fname->base_name);
- state->smb_fname->base_name = tmp;
- state->name =
- state->smb_fname->base_name + name_ofs;
- state->end = state->name + strlen(state->name);
- }
-
- DBG_DEBUG("New file [%s]\n", state->name);
- goto done;
- }
-
-
- /*
- * Restore the rest of the string. If the string was
- * mangled the size may have changed.
- */
- if (state->end) {
- char *tmp;
- size_t name_ofs =
- state->name - state->smb_fname->base_name;
-
- if (!ISDOT(state->dirpath)) {
- tmp = talloc_asprintf(state->smb_fname,
- "%s/%s/%s", state->dirpath,
- found_name, state->end+1);
- }
- else {
- tmp = talloc_asprintf(state->smb_fname,
- "%s/%s", found_name,
- state->end+1);
- }
- if (tmp == NULL) {
- DBG_ERR("talloc_asprintf failed\n");
- status = NT_STATUS_NO_MEMORY;
- goto err;
- }
- TALLOC_FREE(state->smb_fname->base_name);
- state->smb_fname->base_name = tmp;
- state->name = state->smb_fname->base_name + name_ofs;
- state->end = state->name + strlen(found_name);
- *state->end = '\0';
- } else {
- char *tmp;
- size_t name_ofs =
- state->name - state->smb_fname->base_name;
-
- if (!ISDOT(state->dirpath)) {
- tmp = talloc_asprintf(state->smb_fname,
- "%s/%s", state->dirpath,
- found_name);
- } else {
- tmp = talloc_strdup(state->smb_fname,
- found_name);
- }
- if (tmp == NULL) {
- DBG_ERR("talloc failed\n");
- status = NT_STATUS_NO_MEMORY;
- goto err;
- }
- TALLOC_FREE(state->smb_fname->base_name);
- state->smb_fname->base_name = tmp;
- state->name = state->smb_fname->base_name + name_ofs;
-
- /*
- * We just scanned for, and found the end of
- * the path. We must return a valid stat struct
- * if it exists. JRA.
- */
-
- if (state->posix_pathnames) {
- ret = SMB_VFS_LSTAT(state->conn, state->smb_fname);
- } else {
- ret = SMB_VFS_STAT(state->conn, state->smb_fname);
- }
-
- if (ret != 0) {
- SET_STAT_INVALID(state->smb_fname->st);
- }
- }
-
- TALLOC_FREE(found_name);
- } /* end else */
-
- /*
- * Add to the dirpath that we have resolved so far.
- */
-
- if (!ISDOT(state->dirpath)) {
- char *tmp = talloc_asprintf(state->mem_ctx,
- "%s/%s", state->dirpath, state->name);
- if (!tmp) {
- DBG_ERR("talloc_asprintf failed\n");
- status = NT_STATUS_NO_MEMORY;
- goto err;
- }
- TALLOC_FREE(state->dirpath);
- state->dirpath = tmp;
- }
- else {
- TALLOC_FREE(state->dirpath);
- if (!(state->dirpath = talloc_strdup(state->mem_ctx,state->name))) {
- DBG_ERR("talloc_strdup failed\n");
- status = NT_STATUS_NO_MEMORY;
- goto err;
- }
- }
-
- /*
- * Cache the dirpath thus far. Don't cache a name with mangled
- * or wildcard components as this can change the size.
- */
- if(!state->component_was_mangled && !state->name_has_wildcard) {
- stat_cache_add(state->orig_path, state->dirpath,
- state->conn->case_sensitive);
- }
-
- /*
- * Restore the / that we wiped out earlier.
- */
- if (state->end) {
- *state->end = '/';
- }
}
/*
projects / thirdparty / samba.git / commitdiff
