source4/lib/tls/tls.h

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    transport layer security handling code
   5
   6    Copyright (C) Andrew Tridgell 2005
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 2 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21 */
  22
  23 /*
  24   call tls_initialise() once per task to startup the tls subsystem
  25 */
  26 struct tls_params *tls_initialise(TALLOC_CTX *mem_ctx);
  27
  28 /*
  29   call tls_init_server() on each new server connection
  30
  31   the 'plain_chars' parameter is a list of chars that when they occur
  32   as the first character from the client on the connection tell the
  33   tls code that this is a non-tls connection. This can be used to have
  34   tls and non-tls servers on the same port. If this is NULL then only
  35   tls connections will be allowed
  36 */
  37 struct tls_context *tls_init_server(struct tls_params *parms,
  38                                     struct socket_context *sock,
  39                                     struct fd_event *fde,
  40                                     const char *plain_chars);
  41
  42 /*
  43   call these to send and receive data. They behave like socket_send() and socket_recv()
  44  */
  45 NTSTATUS tls_socket_recv(struct tls_context *tls, void *buf, size_t wantlen,
  46                          size_t *nread);
  47 NTSTATUS tls_socket_send(struct tls_context *tls, const DATA_BLOB *blob,
  48                          size_t *sendlen);
  49
  50 /*
  51   return True if a connection used tls
  52 */
  53 BOOL tls_enabled(struct tls_context *tls);
  54
  55
  56 /*
  57   true if tls support is compiled in
  58 */
  59 BOOL tls_support(struct tls_params *parms);
  60
  61