mirror of
git://git.gnupg.org/gnupg.git
synced 2024-12-23 10:29:58 +01:00
128 lines
3.9 KiB
C
128 lines
3.9 KiB
C
/* gpga-prot.h - GnuPG Agent protocol definition
|
|
* Copyright (C) 2000 Free Software Foundation, Inc.
|
|
*
|
|
* This file is part of GnuPG.
|
|
*
|
|
* GnuPG is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* GnuPG is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
|
|
*/
|
|
|
|
/*
|
|
* The gpg-agent protocol:
|
|
* The protocol is connection based and runs over a Unix Domain socket.
|
|
* The client requests a service from the server and waits for the result.
|
|
* A connection request starts with a magic string to transfer the
|
|
* version number the followed by the regular traffic. All numbers
|
|
* are transfered in network-byte-order, strings are prefixed with a
|
|
* 32 bit length and NOT 0 terminated.
|
|
* The magic string is:
|
|
* 0x47, 0x50, 0x47, 0x41, 0x00, 0x00, 0x00, 0x01
|
|
* which nicely fits into 2 32 bit words.
|
|
* The server does not respond to this magic string if the protocol
|
|
is supported; otherwise it will return an error packet and close
|
|
the connection.
|
|
Standard request and reply packets are composed like this
|
|
u32 Length of following packet ( 4 <= n < 2048 )
|
|
u32 Request/Reply type or error code
|
|
n-bytes Data specific to the request/reply
|
|
|
|
Request codes are just the given number,
|
|
Reply codes are all to be ORed with 0x00010000,
|
|
Error codes are all to be ORer with 0x00020000.
|
|
|
|
Requests:
|
|
=========
|
|
GET_VERSION
|
|
|
|
GET_PASSPHRASE, expected data:
|
|
20 Bytes fingerprint of the key
|
|
(use all zeroes to get a passphrase not associated with a key)
|
|
n Bytes with the text to be displayed in case the
|
|
passphrase is not cached or the fingerprint was all zero.
|
|
|
|
CLEAR_PASSPHRASE, expected data:
|
|
20 Bytes fingerprint of the key
|
|
|
|
Returns either OKAY or NO_PASSPHRASE
|
|
|
|
HAVE_PASSPHRASE, expected data:
|
|
20 Bytes fingerprint of the key
|
|
|
|
Returns either OKAY or NO_PASSPHRASE
|
|
|
|
|
|
Replies:
|
|
========
|
|
OKAY (reply code 1)
|
|
Data may be interpreted as the version string
|
|
|
|
GOT_PASSPHRASE (reply code 2)
|
|
u32 Length of passphrase
|
|
n bytes passphrase
|
|
m bytes padding so that the packets have some standard length
|
|
|
|
|
|
Error Replies:
|
|
==============
|
|
PROTOCOL_ERROR
|
|
no data yes specified
|
|
|
|
CANCELED
|
|
User canceled the input
|
|
|
|
NO_PASSPHRASE
|
|
No user intercation possible and passphrase not available.
|
|
Also return as answer on HAVE_PASSPHRASE etc.
|
|
|
|
BAD_PASSPHRASE
|
|
Returned when the user does not repeat the passphrase correctly
|
|
|
|
INVALID_DATA
|
|
|
|
*/
|
|
|
|
|
|
|
|
#ifndef GPG_GPGA_PROT_H
|
|
#define GPG_GPGA_PROT_H 1
|
|
|
|
enum gpga_protocol_codes {
|
|
/* Request codes */
|
|
GPGA_PROT_GET_VERSION = 1,
|
|
GPGA_PROT_GET_PASSPHRASE = 2,
|
|
GPGA_PROT_CLEAR_PASSPHRASE= 3,
|
|
GPGA_PROT_SHUTDOWN = 4,
|
|
GPGA_PROT_FLUSH = 5,
|
|
|
|
/* Reply codes */
|
|
GPGA_PROT_REPLY_BASE = 0x10000,
|
|
GPGA_PROT_OKAY = 0x10001,
|
|
GPGA_PROT_GOT_PASSPHRASE = 0x10002,
|
|
|
|
/* Error codes */
|
|
GPGA_PROT_ERROR_BASE = 0x20000,
|
|
GPGA_PROT_PROTOCOL_ERROR = 0x20001,
|
|
GPGA_PROT_INVALID_REQUEST= 0x20002,
|
|
GPGA_PROT_CANCELED = 0x20003,
|
|
GPGA_PROT_NO_PASSPHRASE = 0x20004,
|
|
GPGA_PROT_BAD_PASSPHRASE = 0x20005,
|
|
GPGA_PROT_INVALID_DATA = 0x20006,
|
|
GPGA_PROT_NOT_IMPLEMENTED= 0x20007,
|
|
GPGA_PROT_UI_PROBLEM = 0x20008,
|
|
};
|
|
|
|
|
|
|
|
#endif /*GPG_GPGA_PROT_H*/
|