2003-08-05 17:11:04 +00:00
|
|
|
|
/* call-agent.c - divert operations to the agent
|
|
|
|
|
* Copyright (C) 2001, 2002, 2003 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
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#include <config.h>
|
|
|
|
|
#include <stdio.h>
|
|
|
|
|
#include <stdlib.h>
|
|
|
|
|
#include <string.h>
|
|
|
|
|
#include <errno.h>
|
|
|
|
|
#include <unistd.h>
|
|
|
|
|
#include <time.h>
|
|
|
|
|
#include <assert.h>
|
|
|
|
|
#ifdef HAVE_LOCALE_H
|
|
|
|
|
#include <locale.h>
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#include "gpgsm.h"
|
|
|
|
|
#include <gcrypt.h>
|
|
|
|
|
#include <assuan.h>
|
|
|
|
|
#include "i18n.h"
|
2004-03-06 20:11:19 +00:00
|
|
|
|
#include "asshelp.h"
|
2003-08-05 17:11:04 +00:00
|
|
|
|
#include "keydb.h" /* fixme: Move this to import.c */
|
|
|
|
|
#include "../common/membuf.h"
|
|
|
|
|
|
|
|
|
|
|
2005-06-16 08:12:03 +00:00
|
|
|
|
static assuan_context_t agent_ctx = NULL;
|
2003-08-05 17:11:04 +00:00
|
|
|
|
static int force_pipe_server = 0;
|
|
|
|
|
|
2005-06-16 08:12:03 +00:00
|
|
|
|
struct cipher_parm_s
|
|
|
|
|
{
|
|
|
|
|
assuan_context_t ctx;
|
|
|
|
|
const unsigned char *ciphertext;
|
2003-08-05 17:11:04 +00:00
|
|
|
|
size_t ciphertextlen;
|
|
|
|
|
};
|
|
|
|
|
|
2005-06-16 08:12:03 +00:00
|
|
|
|
struct genkey_parm_s
|
|
|
|
|
{
|
|
|
|
|
assuan_context_t ctx;
|
|
|
|
|
const unsigned char *sexp;
|
2003-08-05 17:11:04 +00:00
|
|
|
|
size_t sexplen;
|
|
|
|
|
};
|
|
|
|
|
|
2005-06-16 08:12:03 +00:00
|
|
|
|
struct learn_parm_s
|
|
|
|
|
{
|
2003-08-05 17:11:04 +00:00
|
|
|
|
int error;
|
2005-06-16 08:12:03 +00:00
|
|
|
|
assuan_context_t ctx;
|
2003-08-05 17:11:04 +00:00
|
|
|
|
membuf_t *data;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Try to connect to the agent via socket or fork it off and work by
|
|
|
|
|
pipes. Handle the server's initial greeting */
|
|
|
|
|
static int
|
2004-04-26 13:29:09 +00:00
|
|
|
|
start_agent (ctrl_t ctrl)
|
2003-08-05 17:11:04 +00:00
|
|
|
|
{
|
|
|
|
|
int rc = 0;
|
|
|
|
|
char *infostr, *p;
|
2004-03-06 20:11:19 +00:00
|
|
|
|
assuan_context_t ctx;
|
2003-08-05 17:11:04 +00:00
|
|
|
|
|
|
|
|
|
if (agent_ctx)
|
|
|
|
|
return 0; /* fixme: We need a context for each thread or serialize
|
|
|
|
|
the access to the agent (which is suitable given that
|
2004-02-17 17:21:07 +00:00
|
|
|
|
the agent is not MT. */
|
2003-08-05 17:11:04 +00:00
|
|
|
|
|
|
|
|
|
infostr = force_pipe_server? NULL : getenv ("GPG_AGENT_INFO");
|
2004-02-17 17:21:07 +00:00
|
|
|
|
if (!infostr || !*infostr)
|
2003-08-05 17:11:04 +00:00
|
|
|
|
{
|
|
|
|
|
const char *pgmname;
|
|
|
|
|
const char *argv[3];
|
2004-12-20 16:17:25 +00:00
|
|
|
|
char *sockname;
|
2003-08-05 17:11:04 +00:00
|
|
|
|
int no_close_list[3];
|
|
|
|
|
int i;
|
|
|
|
|
|
2004-12-20 16:17:25 +00:00
|
|
|
|
/* First check whether we can connect at the standard
|
|
|
|
|
socket. */
|
|
|
|
|
sockname = make_filename (opt.homedir, "S.gpg-agent", NULL);
|
|
|
|
|
rc = assuan_socket_connect (&ctx, sockname, 0);
|
|
|
|
|
xfree (sockname);
|
2003-08-05 17:11:04 +00:00
|
|
|
|
|
2004-12-20 16:17:25 +00:00
|
|
|
|
if (rc)
|
2003-08-05 17:11:04 +00:00
|
|
|
|
{
|
2004-12-20 16:17:25 +00:00
|
|
|
|
/* With no success start a new server. */
|
|
|
|
|
if (opt.verbose)
|
|
|
|
|
log_info (_("no running gpg-agent - starting one\n"));
|
|
|
|
|
|
|
|
|
|
gpgsm_status (ctrl, STATUS_PROGRESS, "starting_agent ? 0 0");
|
|
|
|
|
|
|
|
|
|
if (fflush (NULL))
|
|
|
|
|
{
|
|
|
|
|
gpg_error_t tmperr = gpg_error (gpg_err_code_from_errno (errno));
|
|
|
|
|
log_error ("error flushing pending output: %s\n",
|
|
|
|
|
strerror (errno));
|
|
|
|
|
return tmperr;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (!opt.agent_program || !*opt.agent_program)
|
|
|
|
|
opt.agent_program = GNUPG_DEFAULT_AGENT;
|
|
|
|
|
if ( !(pgmname = strrchr (opt.agent_program, '/')))
|
|
|
|
|
pgmname = opt.agent_program;
|
|
|
|
|
else
|
|
|
|
|
pgmname++;
|
|
|
|
|
|
|
|
|
|
argv[0] = pgmname;
|
|
|
|
|
argv[1] = "--server";
|
|
|
|
|
argv[2] = NULL;
|
|
|
|
|
|
|
|
|
|
i=0;
|
|
|
|
|
if (log_get_fd () != -1)
|
|
|
|
|
no_close_list[i++] = log_get_fd ();
|
|
|
|
|
no_close_list[i++] = fileno (stderr);
|
|
|
|
|
no_close_list[i] = -1;
|
|
|
|
|
|
|
|
|
|
/* Connect to the agent and perform initial handshaking. */
|
|
|
|
|
rc = assuan_pipe_connect (&ctx, opt.agent_program, (char**)argv,
|
|
|
|
|
no_close_list);
|
2003-08-05 17:11:04 +00:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
int prot;
|
|
|
|
|
int pid;
|
|
|
|
|
|
|
|
|
|
infostr = xstrdup (infostr);
|
2004-12-20 16:17:25 +00:00
|
|
|
|
if ( !(p = strchr (infostr, PATHSEP_C)) || p == infostr)
|
2003-08-05 17:11:04 +00:00
|
|
|
|
{
|
|
|
|
|
log_error (_("malformed GPG_AGENT_INFO environment variable\n"));
|
|
|
|
|
xfree (infostr);
|
|
|
|
|
force_pipe_server = 1;
|
2004-04-26 13:29:09 +00:00
|
|
|
|
return start_agent (ctrl);
|
2003-08-05 17:11:04 +00:00
|
|
|
|
}
|
|
|
|
|
*p++ = 0;
|
|
|
|
|
pid = atoi (p);
|
2005-04-11 16:21:05 +00:00
|
|
|
|
while (*p && *p != PATHSEP_C)
|
2003-08-05 17:11:04 +00:00
|
|
|
|
p++;
|
|
|
|
|
prot = *p? atoi (p+1) : 0;
|
|
|
|
|
if (prot != 1)
|
|
|
|
|
{
|
|
|
|
|
log_error (_("gpg-agent protocol version %d is not supported\n"),
|
|
|
|
|
prot);
|
|
|
|
|
xfree (infostr);
|
|
|
|
|
force_pipe_server = 1;
|
2004-04-26 13:29:09 +00:00
|
|
|
|
return start_agent (ctrl);
|
2003-08-05 17:11:04 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
rc = assuan_socket_connect (&ctx, infostr, pid);
|
|
|
|
|
xfree (infostr);
|
|
|
|
|
if (rc == ASSUAN_Connect_Failed)
|
|
|
|
|
{
|
|
|
|
|
log_error (_("can't connect to the agent - trying fall back\n"));
|
|
|
|
|
force_pipe_server = 1;
|
2004-04-26 13:29:09 +00:00
|
|
|
|
return start_agent (ctrl);
|
2003-08-05 17:11:04 +00:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (rc)
|
|
|
|
|
{
|
|
|
|
|
log_error ("can't connect to the agent: %s\n", assuan_strerror (rc));
|
|
|
|
|
return gpg_error (GPG_ERR_NO_AGENT);
|
|
|
|
|
}
|
|
|
|
|
agent_ctx = ctx;
|
|
|
|
|
|
|
|
|
|
if (DBG_ASSUAN)
|
|
|
|
|
log_debug ("connection to agent established\n");
|
|
|
|
|
|
|
|
|
|
rc = assuan_transact (agent_ctx, "RESET", NULL, NULL, NULL, NULL, NULL, NULL);
|
|
|
|
|
if (rc)
|
|
|
|
|
return map_assuan_err (rc);
|
|
|
|
|
|
2004-12-18 10:22:10 +00:00
|
|
|
|
return send_pinentry_environment (agent_ctx, GPG_ERR_SOURCE_DEFAULT,
|
2004-03-06 20:11:19 +00:00
|
|
|
|
opt.display, opt.ttyname, opt.ttytype,
|
|
|
|
|
opt.lc_ctype, opt.lc_messages);
|
2003-08-05 17:11:04 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static AssuanError
|
|
|
|
|
membuf_data_cb (void *opaque, const void *buffer, size_t length)
|
|
|
|
|
{
|
|
|
|
|
membuf_t *data = opaque;
|
|
|
|
|
|
|
|
|
|
if (buffer)
|
|
|
|
|
put_membuf (data, buffer, length);
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Call the agent to do a sign operation using the key identified by
|
|
|
|
|
the hex string KEYGRIP. */
|
|
|
|
|
int
|
2004-04-26 13:29:09 +00:00
|
|
|
|
gpgsm_agent_pksign (ctrl_t ctrl, const char *keygrip, const char *desc,
|
2003-08-05 17:11:04 +00:00
|
|
|
|
unsigned char *digest, size_t digestlen, int digestalgo,
|
2005-06-16 08:12:03 +00:00
|
|
|
|
unsigned char **r_buf, size_t *r_buflen )
|
2003-08-05 17:11:04 +00:00
|
|
|
|
{
|
|
|
|
|
int rc, i;
|
|
|
|
|
char *p, line[ASSUAN_LINELENGTH];
|
|
|
|
|
membuf_t data;
|
|
|
|
|
size_t len;
|
|
|
|
|
|
|
|
|
|
*r_buf = NULL;
|
2004-04-26 13:29:09 +00:00
|
|
|
|
rc = start_agent (ctrl);
|
2003-08-05 17:11:04 +00:00
|
|
|
|
if (rc)
|
|
|
|
|
return rc;
|
|
|
|
|
|
|
|
|
|
if (digestlen*2 + 50 > DIM(line))
|
|
|
|
|
return gpg_error (GPG_ERR_GENERAL);
|
|
|
|
|
|
|
|
|
|
rc = assuan_transact (agent_ctx, "RESET", NULL, NULL, NULL, NULL, NULL, NULL);
|
|
|
|
|
if (rc)
|
|
|
|
|
return map_assuan_err (rc);
|
|
|
|
|
|
|
|
|
|
snprintf (line, DIM(line)-1, "SIGKEY %s", keygrip);
|
|
|
|
|
line[DIM(line)-1] = 0;
|
|
|
|
|
rc = assuan_transact (agent_ctx, line, NULL, NULL, NULL, NULL, NULL, NULL);
|
|
|
|
|
if (rc)
|
|
|
|
|
return map_assuan_err (rc);
|
|
|
|
|
|
2004-02-13 17:06:50 +00:00
|
|
|
|
if (desc)
|
|
|
|
|
{
|
|
|
|
|
snprintf (line, DIM(line)-1, "SETKEYDESC %s", desc);
|
|
|
|
|
line[DIM(line)-1] = 0;
|
|
|
|
|
rc = assuan_transact (agent_ctx, line,
|
|
|
|
|
NULL, NULL, NULL, NULL, NULL, NULL);
|
|
|
|
|
if (rc)
|
|
|
|
|
return map_assuan_err (rc);
|
|
|
|
|
}
|
|
|
|
|
|
2003-08-05 17:11:04 +00:00
|
|
|
|
sprintf (line, "SETHASH %d ", digestalgo);
|
|
|
|
|
p = line + strlen (line);
|
|
|
|
|
for (i=0; i < digestlen ; i++, p += 2 )
|
|
|
|
|
sprintf (p, "%02X", digest[i]);
|
|
|
|
|
rc = assuan_transact (agent_ctx, line, NULL, NULL, NULL, NULL, NULL, NULL);
|
|
|
|
|
if (rc)
|
|
|
|
|
return map_assuan_err (rc);
|
|
|
|
|
|
|
|
|
|
init_membuf (&data, 1024);
|
|
|
|
|
rc = assuan_transact (agent_ctx, "PKSIGN",
|
|
|
|
|
membuf_data_cb, &data, NULL, NULL, NULL, NULL);
|
|
|
|
|
if (rc)
|
|
|
|
|
{
|
|
|
|
|
xfree (get_membuf (&data, &len));
|
|
|
|
|
return map_assuan_err (rc);
|
|
|
|
|
}
|
|
|
|
|
*r_buf = get_membuf (&data, r_buflen);
|
|
|
|
|
|
|
|
|
|
if (!gcry_sexp_canon_len (*r_buf, *r_buflen, NULL, NULL))
|
|
|
|
|
{
|
|
|
|
|
xfree (*r_buf); *r_buf = NULL;
|
|
|
|
|
return gpg_error (GPG_ERR_INV_VALUE);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return *r_buf? 0 : OUT_OF_CORE (errno);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Handle a CIPHERTEXT inquiry. Note, we only send the data,
|
|
|
|
|
assuan_transact talkes care of flushing and writing the end */
|
|
|
|
|
static AssuanError
|
|
|
|
|
inq_ciphertext_cb (void *opaque, const char *keyword)
|
|
|
|
|
{
|
|
|
|
|
struct cipher_parm_s *parm = opaque;
|
|
|
|
|
AssuanError rc;
|
|
|
|
|
|
|
|
|
|
assuan_begin_confidential (parm->ctx);
|
|
|
|
|
rc = assuan_send_data (parm->ctx, parm->ciphertext, parm->ciphertextlen);
|
|
|
|
|
assuan_end_confidential (parm->ctx);
|
|
|
|
|
return rc;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Call the agent to do a decrypt operation using the key identified by
|
|
|
|
|
the hex string KEYGRIP. */
|
|
|
|
|
int
|
2004-04-26 13:29:09 +00:00
|
|
|
|
gpgsm_agent_pkdecrypt (ctrl_t ctrl, const char *keygrip, const char *desc,
|
2003-12-17 12:28:24 +00:00
|
|
|
|
ksba_const_sexp_t ciphertext,
|
2003-08-05 17:11:04 +00:00
|
|
|
|
char **r_buf, size_t *r_buflen )
|
|
|
|
|
{
|
|
|
|
|
int rc;
|
|
|
|
|
char line[ASSUAN_LINELENGTH];
|
|
|
|
|
membuf_t data;
|
|
|
|
|
struct cipher_parm_s cipher_parm;
|
|
|
|
|
size_t n, len;
|
|
|
|
|
char *buf, *endp;
|
|
|
|
|
size_t ciphertextlen;
|
|
|
|
|
|
|
|
|
|
if (!keygrip || strlen(keygrip) != 40 || !ciphertext || !r_buf || !r_buflen)
|
|
|
|
|
return gpg_error (GPG_ERR_INV_VALUE);
|
|
|
|
|
*r_buf = NULL;
|
|
|
|
|
|
|
|
|
|
ciphertextlen = gcry_sexp_canon_len (ciphertext, 0, NULL, NULL);
|
|
|
|
|
if (!ciphertextlen)
|
|
|
|
|
return gpg_error (GPG_ERR_INV_VALUE);
|
|
|
|
|
|
2004-04-26 13:29:09 +00:00
|
|
|
|
rc = start_agent (ctrl);
|
2003-08-05 17:11:04 +00:00
|
|
|
|
if (rc)
|
|
|
|
|
return rc;
|
|
|
|
|
|
|
|
|
|
rc = assuan_transact (agent_ctx, "RESET", NULL, NULL, NULL, NULL, NULL, NULL);
|
|
|
|
|
if (rc)
|
|
|
|
|
return map_assuan_err (rc);
|
|
|
|
|
|
|
|
|
|
assert ( DIM(line) >= 50 );
|
|
|
|
|
snprintf (line, DIM(line)-1, "SETKEY %s", keygrip);
|
|
|
|
|
line[DIM(line)-1] = 0;
|
|
|
|
|
rc = assuan_transact (agent_ctx, line, NULL, NULL, NULL, NULL, NULL, NULL);
|
|
|
|
|
if (rc)
|
|
|
|
|
return map_assuan_err (rc);
|
|
|
|
|
|
2004-02-13 17:06:50 +00:00
|
|
|
|
if (desc)
|
|
|
|
|
{
|
|
|
|
|
snprintf (line, DIM(line)-1, "SETKEYDESC %s", desc);
|
|
|
|
|
line[DIM(line)-1] = 0;
|
|
|
|
|
rc = assuan_transact (agent_ctx, line,
|
|
|
|
|
NULL, NULL, NULL, NULL, NULL, NULL);
|
|
|
|
|
if (rc)
|
|
|
|
|
return map_assuan_err (rc);
|
|
|
|
|
}
|
|
|
|
|
|
2003-08-05 17:11:04 +00:00
|
|
|
|
init_membuf (&data, 1024);
|
|
|
|
|
cipher_parm.ctx = agent_ctx;
|
|
|
|
|
cipher_parm.ciphertext = ciphertext;
|
|
|
|
|
cipher_parm.ciphertextlen = ciphertextlen;
|
|
|
|
|
rc = assuan_transact (agent_ctx, "PKDECRYPT",
|
|
|
|
|
membuf_data_cb, &data,
|
|
|
|
|
inq_ciphertext_cb, &cipher_parm, NULL, NULL);
|
|
|
|
|
if (rc)
|
|
|
|
|
{
|
|
|
|
|
xfree (get_membuf (&data, &len));
|
|
|
|
|
return map_assuan_err (rc);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
put_membuf (&data, "", 1); /* make sure it is 0 terminated */
|
|
|
|
|
buf = get_membuf (&data, &len);
|
|
|
|
|
if (!buf)
|
|
|
|
|
return gpg_error (GPG_ERR_ENOMEM);
|
|
|
|
|
/* FIXME: We would better a return a full S-exp and not just a part */
|
|
|
|
|
assert (len);
|
|
|
|
|
len--; /* remove the terminating 0 */
|
|
|
|
|
n = strtoul (buf, &endp, 10);
|
|
|
|
|
if (!n || *endp != ':')
|
|
|
|
|
return gpg_error (GPG_ERR_INV_SEXP);
|
|
|
|
|
endp++;
|
|
|
|
|
if (endp-buf+n > len)
|
|
|
|
|
return gpg_error (GPG_ERR_INV_SEXP); /* oops len does not
|
|
|
|
|
match internal len*/
|
|
|
|
|
memmove (buf, endp, n);
|
|
|
|
|
*r_buflen = n;
|
|
|
|
|
*r_buf = buf;
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Handle a KEYPARMS inquiry. Note, we only send the data,
|
|
|
|
|
assuan_transact takes care of flushing and writing the end */
|
|
|
|
|
static AssuanError
|
|
|
|
|
inq_genkey_parms (void *opaque, const char *keyword)
|
|
|
|
|
{
|
|
|
|
|
struct genkey_parm_s *parm = opaque;
|
|
|
|
|
AssuanError rc;
|
|
|
|
|
|
|
|
|
|
rc = assuan_send_data (parm->ctx, parm->sexp, parm->sexplen);
|
|
|
|
|
return rc;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Call the agent to generate a newkey */
|
|
|
|
|
int
|
2004-04-26 13:29:09 +00:00
|
|
|
|
gpgsm_agent_genkey (ctrl_t ctrl,
|
|
|
|
|
ksba_const_sexp_t keyparms, ksba_sexp_t *r_pubkey)
|
2003-08-05 17:11:04 +00:00
|
|
|
|
{
|
|
|
|
|
int rc;
|
|
|
|
|
struct genkey_parm_s gk_parm;
|
|
|
|
|
membuf_t data;
|
|
|
|
|
size_t len;
|
2005-06-16 08:12:03 +00:00
|
|
|
|
unsigned char *buf;
|
2003-08-05 17:11:04 +00:00
|
|
|
|
|
|
|
|
|
*r_pubkey = NULL;
|
2004-04-26 13:29:09 +00:00
|
|
|
|
rc = start_agent (ctrl);
|
2003-08-05 17:11:04 +00:00
|
|
|
|
if (rc)
|
|
|
|
|
return rc;
|
|
|
|
|
|
|
|
|
|
rc = assuan_transact (agent_ctx, "RESET", NULL, NULL, NULL, NULL, NULL, NULL);
|
|
|
|
|
if (rc)
|
|
|
|
|
return map_assuan_err (rc);
|
|
|
|
|
|
|
|
|
|
init_membuf (&data, 1024);
|
|
|
|
|
gk_parm.ctx = agent_ctx;
|
|
|
|
|
gk_parm.sexp = keyparms;
|
|
|
|
|
gk_parm.sexplen = gcry_sexp_canon_len (keyparms, 0, NULL, NULL);
|
|
|
|
|
if (!gk_parm.sexplen)
|
|
|
|
|
return gpg_error (GPG_ERR_INV_VALUE);
|
|
|
|
|
rc = assuan_transact (agent_ctx, "GENKEY",
|
|
|
|
|
membuf_data_cb, &data,
|
|
|
|
|
inq_genkey_parms, &gk_parm, NULL, NULL);
|
|
|
|
|
if (rc)
|
|
|
|
|
{
|
|
|
|
|
xfree (get_membuf (&data, &len));
|
|
|
|
|
return map_assuan_err (rc);
|
|
|
|
|
}
|
|
|
|
|
buf = get_membuf (&data, &len);
|
|
|
|
|
if (!buf)
|
|
|
|
|
return gpg_error (GPG_ERR_ENOMEM);
|
|
|
|
|
if (!gcry_sexp_canon_len (buf, len, NULL, NULL))
|
|
|
|
|
{
|
|
|
|
|
xfree (buf);
|
|
|
|
|
return gpg_error (GPG_ERR_INV_SEXP);
|
|
|
|
|
}
|
|
|
|
|
*r_pubkey = buf;
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Ask the agent whether the certificate is in the list of trusted
|
|
|
|
|
keys */
|
|
|
|
|
int
|
2004-04-26 13:29:09 +00:00
|
|
|
|
gpgsm_agent_istrusted (ctrl_t ctrl, ksba_cert_t cert)
|
2003-08-05 17:11:04 +00:00
|
|
|
|
{
|
|
|
|
|
int rc;
|
|
|
|
|
char *fpr;
|
|
|
|
|
char line[ASSUAN_LINELENGTH];
|
|
|
|
|
|
2004-04-26 13:29:09 +00:00
|
|
|
|
rc = start_agent (ctrl);
|
2003-08-05 17:11:04 +00:00
|
|
|
|
if (rc)
|
|
|
|
|
return rc;
|
|
|
|
|
|
|
|
|
|
fpr = gpgsm_get_fingerprint_hexstring (cert, GCRY_MD_SHA1);
|
|
|
|
|
if (!fpr)
|
|
|
|
|
{
|
|
|
|
|
log_error ("error getting the fingerprint\n");
|
|
|
|
|
return gpg_error (GPG_ERR_GENERAL);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
snprintf (line, DIM(line)-1, "ISTRUSTED %s", fpr);
|
|
|
|
|
line[DIM(line)-1] = 0;
|
|
|
|
|
xfree (fpr);
|
|
|
|
|
|
|
|
|
|
rc = assuan_transact (agent_ctx, line, NULL, NULL, NULL, NULL, NULL, NULL);
|
|
|
|
|
return map_assuan_err (rc);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Ask the agent to mark CERT as a trusted Root-CA one */
|
|
|
|
|
int
|
2004-04-26 13:29:09 +00:00
|
|
|
|
gpgsm_agent_marktrusted (ctrl_t ctrl, ksba_cert_t cert)
|
2003-08-05 17:11:04 +00:00
|
|
|
|
{
|
|
|
|
|
int rc;
|
|
|
|
|
char *fpr, *dn;
|
|
|
|
|
char line[ASSUAN_LINELENGTH];
|
|
|
|
|
|
2004-04-26 13:29:09 +00:00
|
|
|
|
rc = start_agent (ctrl);
|
2003-08-05 17:11:04 +00:00
|
|
|
|
if (rc)
|
|
|
|
|
return rc;
|
|
|
|
|
|
|
|
|
|
fpr = gpgsm_get_fingerprint_hexstring (cert, GCRY_MD_SHA1);
|
|
|
|
|
if (!fpr)
|
|
|
|
|
{
|
|
|
|
|
log_error ("error getting the fingerprint\n");
|
|
|
|
|
return gpg_error (GPG_ERR_GENERAL);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
dn = ksba_cert_get_issuer (cert, 0);
|
|
|
|
|
if (!dn)
|
|
|
|
|
{
|
|
|
|
|
xfree (fpr);
|
|
|
|
|
return gpg_error (GPG_ERR_GENERAL);
|
|
|
|
|
}
|
|
|
|
|
snprintf (line, DIM(line)-1, "MARKTRUSTED %s S %s", fpr, dn);
|
|
|
|
|
line[DIM(line)-1] = 0;
|
|
|
|
|
ksba_free (dn);
|
|
|
|
|
xfree (fpr);
|
|
|
|
|
|
|
|
|
|
rc = assuan_transact (agent_ctx, line, NULL, NULL, NULL, NULL, NULL, NULL);
|
|
|
|
|
return map_assuan_err (rc);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Ask the agent whether the a corresponding secret key is available
|
|
|
|
|
for the given keygrip */
|
|
|
|
|
int
|
2004-04-26 13:29:09 +00:00
|
|
|
|
gpgsm_agent_havekey (ctrl_t ctrl, const char *hexkeygrip)
|
2003-08-05 17:11:04 +00:00
|
|
|
|
{
|
|
|
|
|
int rc;
|
|
|
|
|
char line[ASSUAN_LINELENGTH];
|
|
|
|
|
|
2004-04-26 13:29:09 +00:00
|
|
|
|
rc = start_agent (ctrl);
|
2003-08-05 17:11:04 +00:00
|
|
|
|
if (rc)
|
|
|
|
|
return rc;
|
|
|
|
|
|
|
|
|
|
if (!hexkeygrip || strlen (hexkeygrip) != 40)
|
|
|
|
|
return gpg_error (GPG_ERR_INV_VALUE);
|
|
|
|
|
|
|
|
|
|
snprintf (line, DIM(line)-1, "HAVEKEY %s", hexkeygrip);
|
|
|
|
|
line[DIM(line)-1] = 0;
|
|
|
|
|
|
|
|
|
|
rc = assuan_transact (agent_ctx, line, NULL, NULL, NULL, NULL, NULL, NULL);
|
|
|
|
|
return map_assuan_err (rc);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static AssuanError
|
|
|
|
|
learn_cb (void *opaque, const void *buffer, size_t length)
|
|
|
|
|
{
|
|
|
|
|
struct learn_parm_s *parm = opaque;
|
|
|
|
|
size_t len;
|
|
|
|
|
char *buf;
|
2003-12-17 12:28:24 +00:00
|
|
|
|
ksba_cert_t cert;
|
2003-08-05 17:11:04 +00:00
|
|
|
|
int rc;
|
|
|
|
|
|
|
|
|
|
if (parm->error)
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
if (buffer)
|
|
|
|
|
{
|
|
|
|
|
put_membuf (parm->data, buffer, length);
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
/* END encountered - process what we have */
|
|
|
|
|
buf = get_membuf (parm->data, &len);
|
|
|
|
|
if (!buf)
|
|
|
|
|
{
|
|
|
|
|
parm->error = gpg_error (GPG_ERR_ENOMEM);
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* FIXME: this should go into import.c */
|
2003-11-12 15:17:44 +00:00
|
|
|
|
rc = ksba_cert_new (&cert);
|
|
|
|
|
if (rc)
|
2003-08-05 17:11:04 +00:00
|
|
|
|
{
|
2003-11-12 15:17:44 +00:00
|
|
|
|
parm->error = rc;
|
2003-08-05 17:11:04 +00:00
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
rc = ksba_cert_init_from_mem (cert, buf, len);
|
|
|
|
|
if (rc)
|
|
|
|
|
{
|
2003-11-12 15:17:44 +00:00
|
|
|
|
log_error ("failed to parse a certificate: %s\n", gpg_strerror (rc));
|
2003-08-05 17:11:04 +00:00
|
|
|
|
ksba_cert_release (cert);
|
2003-11-12 15:17:44 +00:00
|
|
|
|
parm->error = rc;
|
2003-08-05 17:11:04 +00:00
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
rc = gpgsm_basic_cert_check (cert);
|
|
|
|
|
if (gpg_err_code (rc) == GPG_ERR_MISSING_CERT)
|
|
|
|
|
{ /* For later use we store it in the ephemeral database. */
|
|
|
|
|
log_info ("issuer certificate missing - storing as ephemeral\n");
|
|
|
|
|
keydb_store_cert (cert, 1, NULL);
|
|
|
|
|
}
|
|
|
|
|
else if (rc)
|
|
|
|
|
log_error ("invalid certificate: %s\n", gpg_strerror (rc));
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
int existed;
|
|
|
|
|
|
|
|
|
|
if (!keydb_store_cert (cert, 0, &existed))
|
|
|
|
|
{
|
|
|
|
|
if (opt.verbose > 1 && existed)
|
|
|
|
|
log_info ("certificate already in DB\n");
|
|
|
|
|
else if (opt.verbose && !existed)
|
|
|
|
|
log_info ("certificate imported\n");
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
ksba_cert_release (cert);
|
|
|
|
|
init_membuf (parm->data, 4096);
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Call the agent to learn about a smartcard */
|
|
|
|
|
int
|
2004-04-26 13:29:09 +00:00
|
|
|
|
gpgsm_agent_learn (ctrl_t ctrl)
|
2003-08-05 17:11:04 +00:00
|
|
|
|
{
|
|
|
|
|
int rc;
|
|
|
|
|
struct learn_parm_s learn_parm;
|
|
|
|
|
membuf_t data;
|
|
|
|
|
size_t len;
|
|
|
|
|
|
2004-04-26 13:29:09 +00:00
|
|
|
|
rc = start_agent (ctrl);
|
2003-08-05 17:11:04 +00:00
|
|
|
|
if (rc)
|
|
|
|
|
return rc;
|
|
|
|
|
|
|
|
|
|
init_membuf (&data, 4096);
|
|
|
|
|
learn_parm.error = 0;
|
|
|
|
|
learn_parm.ctx = agent_ctx;
|
|
|
|
|
learn_parm.data = &data;
|
|
|
|
|
rc = assuan_transact (agent_ctx, "LEARN --send",
|
|
|
|
|
learn_cb, &learn_parm,
|
|
|
|
|
NULL, NULL, NULL, NULL);
|
|
|
|
|
xfree (get_membuf (&data, &len));
|
|
|
|
|
if (rc)
|
|
|
|
|
return map_assuan_err (rc);
|
|
|
|
|
return learn_parm.error;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
2004-02-21 13:05:52 +00:00
|
|
|
|
/* Ask the agent to change the passphrase of the key identified by
|
|
|
|
|
HEXKEYGRIP. If DESC is not NULL, display instead of the default
|
|
|
|
|
description message. */
|
2003-08-05 17:11:04 +00:00
|
|
|
|
int
|
2004-04-26 13:29:09 +00:00
|
|
|
|
gpgsm_agent_passwd (ctrl_t ctrl, const char *hexkeygrip, const char *desc)
|
2003-08-05 17:11:04 +00:00
|
|
|
|
{
|
|
|
|
|
int rc;
|
|
|
|
|
char line[ASSUAN_LINELENGTH];
|
|
|
|
|
|
2004-04-26 13:29:09 +00:00
|
|
|
|
rc = start_agent (ctrl);
|
2003-08-05 17:11:04 +00:00
|
|
|
|
if (rc)
|
|
|
|
|
return rc;
|
|
|
|
|
|
|
|
|
|
if (!hexkeygrip || strlen (hexkeygrip) != 40)
|
|
|
|
|
return gpg_error (GPG_ERR_INV_VALUE);
|
|
|
|
|
|
2004-02-21 13:05:52 +00:00
|
|
|
|
if (desc)
|
|
|
|
|
{
|
|
|
|
|
snprintf (line, DIM(line)-1, "SETKEYDESC %s", desc);
|
|
|
|
|
line[DIM(line)-1] = 0;
|
|
|
|
|
rc = assuan_transact (agent_ctx, line,
|
|
|
|
|
NULL, NULL, NULL, NULL, NULL, NULL);
|
|
|
|
|
if (rc)
|
|
|
|
|
return map_assuan_err (rc);
|
|
|
|
|
}
|
|
|
|
|
|
2003-08-05 17:11:04 +00:00
|
|
|
|
snprintf (line, DIM(line)-1, "PASSWD %s", hexkeygrip);
|
|
|
|
|
line[DIM(line)-1] = 0;
|
|
|
|
|
|
|
|
|
|
rc = assuan_transact (agent_ctx, line, NULL, NULL, NULL, NULL, NULL, NULL);
|
|
|
|
|
return map_assuan_err (rc);
|
|
|
|
|
}
|
|
|
|
|
|