static NTSTATUS check_name_with_privilege(connection_struct *conn,
struct smb_request *smbreq,
const char *name)
{
NTSTATUS status = check_veto_path(conn, name);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
return check_reduced_name_with_privilege(conn,
name,
smbreq);
}
NTSTATUS check_name(connection_struct *conn, const char *name)
{
NTSTATUS status = check_veto_path(conn, name);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
if (!lp_widelinks(SNUM(conn)) || !lp_symlinks(SNUM(conn))) {
status = check_reduced_name(conn,name);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(5,("check_name: name %s failed with %s\n",name,
nt_errstr(status)));
return status;
}
}
return NT_STATUS_OK;
}
/**
* 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;
bool allow_wcards = (ucf_flags & (UCF_COND_ALLOW_WCARD_LCOMP|UCF_ALWAYS_ALLOW_WCARD_LCOMP));
char *fname = NULL;
*pp_smb_fname = NULL;
status = resolve_dfspath_wcard(ctx, conn,
dfs_path,
name_in,
allow_wcards,
&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;
}
if ((ucf_flags & UCF_UNIX_NAME_LOOKUP) &&
VALID_STAT((*pp_smb_fname)->st) &&
S_ISLNK((*pp_smb_fname)->st.st_ex_mode)) {
return check_veto_path(conn, (*pp_smb_fname)->base_name);
}
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;
}
