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-rw-r--r--g10/call-agent.c893
1 files changed, 0 insertions, 893 deletions
diff --git a/g10/call-agent.c b/g10/call-agent.c
deleted file mode 100644
index de157d491..000000000
--- a/g10/call-agent.c
+++ /dev/null
@@ -1,893 +0,0 @@
-/* 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
- */
-
-#if 0 /* lety Emacs display a red warning */
-#error fixme: this shares a lof of code with the file in ../sm
-#endif
-
-#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 <assuan.h>
-
-#include "gpg.h"
-#include "util.h"
-#include "membuf.h"
-#include "options.h"
-#include "i18n.h"
-#include "call-agent.h"
-
-#ifndef DBG_ASSUAN
-# define DBG_ASSUAN 1
-#endif
-
-static ASSUAN_CONTEXT agent_ctx = NULL;
-static int force_pipe_server = 1; /* FIXME: set this back to 0. */
-
-struct cipher_parm_s {
- ASSUAN_CONTEXT ctx;
- const char *ciphertext;
- size_t ciphertextlen;
-};
-
-struct genkey_parm_s {
- ASSUAN_CONTEXT ctx;
- const char *sexp;
- size_t sexplen;
-};
-
-
-
-/* Try to connect to the agent via socket or fork it off and work by
- pipes. Handle the server's initial greeting */
-static int
-start_agent (void)
-{
- int rc = 0;
- char *infostr, *p;
- ASSUAN_CONTEXT ctx;
- char *dft_display = NULL;
- char *dft_ttyname = NULL;
- char *dft_ttytype = NULL;
- char *old_lc = NULL;
- char *dft_lc = NULL;
-
- if (agent_ctx)
- return 0; /* fixme: We need a context for each thread or serialize
- the access to the agent. */
-
- infostr = force_pipe_server? NULL : getenv ("GPG_AGENT_INFO");
- if (!infostr || !*infostr)
- {
- const char *pgmname;
- const char *argv[3];
- int no_close_list[3];
- int i;
-
- if (opt.verbose)
- log_info (_("no running gpg-agent - starting one\n"));
-
- if (fflush (NULL))
- {
- gpg_error_t tmperr = gpg_error_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);
- }
- else
- {
- int prot;
- int pid;
-
- infostr = xstrdup (infostr);
- if ( !(p = strchr (infostr, ':')) || p == infostr)
- {
- log_error (_("malformed GPG_AGENT_INFO environment variable\n"));
- xfree (infostr);
- force_pipe_server = 1;
- return start_agent ();
- }
- *p++ = 0;
- pid = atoi (p);
- while (*p && *p != ':')
- 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;
- return start_agent ();
- }
-
- 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;
- return start_agent ();
- }
- }
-
- 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);
-
- dft_display = getenv ("DISPLAY");
- if (opt.display || dft_display)
- {
- char *optstr;
- if (asprintf (&optstr, "OPTION display=%s",
- opt.display ? opt.display : dft_display) < 0)
- return gpg_error_from_errno (errno);
- rc = assuan_transact (agent_ctx, optstr, NULL, NULL, NULL, NULL, NULL,
- NULL);
- free (optstr);
- if (rc)
- return map_assuan_err (rc);
- }
- if (!opt.ttyname)
- {
- dft_ttyname = getenv ("GPG_TTY");
- if ((!dft_ttyname || !*dft_ttyname) && ttyname (0))
- dft_ttyname = ttyname (0);
- }
- if (opt.ttyname || dft_ttyname)
- {
- char *optstr;
- if (asprintf (&optstr, "OPTION ttyname=%s",
- opt.ttyname ? opt.ttyname : dft_ttyname) < 0)
- return gpg_error_from_errno (errno);
- rc = assuan_transact (agent_ctx, optstr, NULL, NULL, NULL, NULL, NULL,
- NULL);
- free (optstr);
- if (rc)
- return map_assuan_err (rc);
- }
- dft_ttytype = getenv ("TERM");
- if (opt.ttytype || (dft_ttyname && dft_ttytype))
- {
- char *optstr;
- if (asprintf (&optstr, "OPTION ttytype=%s",
- opt.ttyname ? opt.ttytype : dft_ttytype) < 0)
- return gpg_error_from_errno (errno);
- rc = assuan_transact (agent_ctx, optstr, NULL, NULL, NULL, NULL, NULL,
- NULL);
- free (optstr);
- if (rc)
- return map_assuan_err (rc);
- }
-#if defined(HAVE_SETLOCALE) && defined(LC_CTYPE)
- old_lc = setlocale (LC_CTYPE, NULL);
- if (old_lc)
- {
- old_lc = strdup (old_lc);
- if (!old_lc)
- return gpg_error_from_errno (errno);
-
- }
- dft_lc = setlocale (LC_CTYPE, "");
-#endif
- if (opt.lc_ctype || (dft_ttyname && dft_lc))
- {
- char *optstr;
- if (asprintf (&optstr, "OPTION lc-ctype=%s",
- opt.lc_ctype ? opt.lc_ctype : dft_lc) < 0)
- rc = gpg_error_from_errno (errno);
- else
- {
- rc = assuan_transact (agent_ctx, optstr, NULL, NULL, NULL, NULL, NULL,
- NULL);
- free (optstr);
- if (rc)
- rc = map_assuan_err (rc);
- }
- }
-#if defined(HAVE_SETLOCALE) && defined(LC_CTYPE)
- if (old_lc)
- {
- setlocale (LC_CTYPE, old_lc);
- free (old_lc);
- }
-#endif
- if (rc)
- return rc;
-#if defined(HAVE_SETLOCALE) && defined(LC_MESSAGES)
- old_lc = setlocale (LC_MESSAGES, NULL);
- if (old_lc)
- {
- old_lc = strdup (old_lc);
- if (!old_lc)
- return gpg_error_from_errno (errno);
- }
- dft_lc = setlocale (LC_MESSAGES, "");
-#endif
- if (opt.lc_messages || (dft_ttyname && dft_lc))
- {
- char *optstr;
- if (asprintf (&optstr, "OPTION lc-messages=%s",
- opt.lc_messages ? opt.lc_messages : dft_lc) < 0)
- rc = gpg_error_from_errno (errno);
- else
- {
- rc = assuan_transact (agent_ctx, optstr, NULL, NULL, NULL, NULL, NULL,
- NULL);
- free (optstr);
- if (rc)
- rc = map_assuan_err (rc);
- }
- }
-#if defined(HAVE_SETLOCALE) && defined(LC_MESSAGES)
- if (old_lc)
- {
- setlocale (LC_MESSAGES, old_lc);
- free (old_lc);
- }
-#endif
-
- return rc;
-}
-
-
-/* Return a new malloced string by unescaping the string S. Escaping
- is percent escaping and '+'/space mapping. A binary nul will
- silently be replaced by a 0xFF. Function returns NULL to indicate
- an out of memory status. */
-static char *
-unescape_status_string (const unsigned char *s)
-{
- char *buffer, *d;
-
- buffer = d = xtrymalloc (strlen (s)+1);
- if (!buffer)
- return NULL;
- while (*s)
- {
- if (*s == '%' && s[1] && s[2])
- {
- s++;
- *d = xtoi_2 (s);
- if (!*d)
- *d = '\xff';
- d++;
- s += 2;
- }
- else if (*s == '+')
- {
- *d++ = ' ';
- s++;
- }
- else
- *d++ = *s++;
- }
- *d = 0;
- return buffer;
-}
-
-/* Take a 20 byte hexencoded string and put it into the the provided
- 20 byte buffer FPR in binary format. */
-static int
-unhexify_fpr (const char *hexstr, unsigned char *fpr)
-{
- const char *s;
- int n;
-
- for (s=hexstr, n=0; hexdigitp (s); s++, n++)
- ;
- if (*s || (n != 40))
- return 0; /* no fingerprint (invalid or wrong length). */
- n /= 2;
- for (s=hexstr, n=0; *s; s += 2, n++)
- fpr[n] = xtoi_2 (s);
- return 1; /* okay */
-}
-
-/* Take the serial number from LINE and return it verbatim in a newly
- allocated string. We make sure that only hex characters are
- returned. */
-static char *
-store_serialno (const char *line)
-{
- const char *s;
- char *p;
-
- for (s=line; hexdigitp (s); s++)
- ;
- p = xtrymalloc (s + 1 - line);
- if (p)
- {
- memcpy (p, line, s-line);
- p[s-line] = 0;
- }
- return p;
-}
-
-
-
-#if 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 new key */
-int
-agent_genkey (KsbaConstSexp keyparms, KsbaSexp *r_pubkey)
-{
- int rc;
- struct genkey_parm_s gk_parm;
- membuf_t data;
- size_t len;
- char *buf;
-
- *r_pubkey = NULL;
- rc = start_agent ();
- 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;
-}
-#endif /*0*/
-
-
-
-/* Ask the agent whether the corresponding secret key is available for
- the given keygrip. */
-int
-agent_havekey (const char *hexkeygrip)
-{
- int rc;
- char line[ASSUAN_LINELENGTH];
-
- rc = start_agent ();
- 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);
-}
-
-
-/* Release the card info structure INFO. */
-void
-agent_release_card_info (struct agent_card_info_s *info)
-{
- if (!info)
- return;
-
- xfree (info->serialno); info->serialno = NULL;
- xfree (info->disp_name); info->disp_name = NULL;
- xfree (info->disp_lang); info->disp_lang = NULL;
- xfree (info->pubkey_url); info->pubkey_url = NULL;
- xfree (info->login_data); info->login_data = NULL;
- info->fpr1valid = info->fpr2valid = info->fpr3valid = 0;
-}
-
-static AssuanError
-learn_status_cb (void *opaque, const char *line)
-{
- struct agent_card_info_s *parm = opaque;
- const char *keyword = line;
- int keywordlen;
- int i;
-
- for (keywordlen=0; *line && !spacep (line); line++, keywordlen++)
- ;
- while (spacep (line))
- line++;
-
- if (keywordlen == 8 && !memcmp (keyword, "SERIALNO", keywordlen))
- {
- xfree (parm->serialno);
- parm->serialno = store_serialno (line);
- }
- else if (keywordlen == 9 && !memcmp (keyword, "DISP-NAME", keywordlen))
- {
- xfree (parm->disp_name);
- parm->disp_name = unescape_status_string (line);
- }
- else if (keywordlen == 9 && !memcmp (keyword, "DISP-LANG", keywordlen))
- {
- xfree (parm->disp_lang);
- parm->disp_lang = unescape_status_string (line);
- }
- else if (keywordlen == 8 && !memcmp (keyword, "DISP-SEX", keywordlen))
- {
- parm->disp_sex = *line == '1'? 1 : *line == '2' ? 2: 0;
- }
- else if (keywordlen == 10 && !memcmp (keyword, "PUBKEY-URL", keywordlen))
- {
- xfree (parm->pubkey_url);
- parm->pubkey_url = unescape_status_string (line);
- }
- else if (keywordlen == 10 && !memcmp (keyword, "LOGIN-DATA", keywordlen))
- {
- xfree (parm->login_data);
- parm->login_data = unescape_status_string (line);
- }
- else if (keywordlen == 11 && !memcmp (keyword, "SIG-COUNTER", keywordlen))
- {
- parm->sig_counter = strtoul (line, NULL, 0);
- }
- else if (keywordlen == 10 && !memcmp (keyword, "CHV-STATUS", keywordlen))
- {
- char *p, *buf;
-
- buf = p = unescape_status_string (line);
- if (buf)
- {
- while (spacep (p))
- p++;
- parm->chv1_cached = atoi (p);
- while (*p && !spacep (p))
- p++;
- while (spacep (p))
- p++;
- for (i=0; *p && i < 3; i++)
- {
- parm->chvmaxlen[i] = atoi (p);
- while (*p && !spacep (p))
- p++;
- while (spacep (p))
- p++;
- }
- for (i=0; *p && i < 3; i++)
- {
- parm->chvretry[i] = atoi (p);
- while (*p && !spacep (p))
- p++;
- while (spacep (p))
- p++;
- }
- xfree (buf);
- }
- }
- else if (keywordlen == 7 && !memcmp (keyword, "KEY-FPR", keywordlen))
- {
- int no = atoi (line);
- while (*line && !spacep (line))
- line++;
- while (spacep (line))
- line++;
- if (no == 1)
- parm->fpr1valid = unhexify_fpr (line, parm->fpr1);
- else if (no == 2)
- parm->fpr2valid = unhexify_fpr (line, parm->fpr2);
- else if (no == 3)
- parm->fpr3valid = unhexify_fpr (line, parm->fpr3);
- }
-
- return 0;
-}
-
-/* Call the agent to learn about a smartcard */
-int
-agent_learn (struct agent_card_info_s *info)
-{
- int rc;
-
- rc = start_agent ();
- if (rc)
- return rc;
-
- memset (info, 0, sizeof *info);
- rc = assuan_transact (agent_ctx, "LEARN --send",
- NULL, NULL, NULL, NULL,
- learn_status_cb, info);
-
- return map_assuan_err (rc);
-}
-
-/* Call the agent to retrieve a data object. This function returns
- the data in the same structure as used by the learn command. It is
- allowed to update such a structure using this commmand. */
-int
-agent_scd_getattr (const char *name, struct agent_card_info_s *info)
-{
- int rc;
- char line[ASSUAN_LINELENGTH];
-
- if (!*name)
- return gpg_error (GPG_ERR_INV_VALUE);
-
- /* We assume that NAME does not need escaping. */
- if (12 + strlen (name) > DIM(line)-1)
- return gpg_error (GPG_ERR_TOO_LARGE);
- stpcpy (stpcpy (line, "SCD GETATTR "), name);
-
- rc = start_agent ();
- if (rc)
- return rc;
-
- rc = assuan_transact (agent_ctx, line, NULL, NULL, NULL, NULL,
- learn_status_cb, info);
-
- return map_assuan_err (rc);
-}
-
-
-/* Send an setattr command to the SCdaemon. */
-int
-agent_scd_setattr (const char *name,
- const unsigned char *value, size_t valuelen)
-{
- int rc;
- char line[ASSUAN_LINELENGTH];
- char *p;
-
- if (!*name || !valuelen)
- return gpg_error (GPG_ERR_INV_VALUE);
-
- /* We assume that NAME does not need escaping. */
- if (12 + strlen (name) > DIM(line)-1)
- return gpg_error (GPG_ERR_TOO_LARGE);
-
- p = stpcpy (stpcpy (line, "SCD SETATTR "), name);
- *p++ = ' ';
- for (; valuelen; value++, valuelen--)
- {
- if (p >= line + DIM(line)-5 )
- return gpg_error (GPG_ERR_TOO_LARGE);
- if (*value < ' ' || *value == '+' || *value == '%')
- {
- sprintf (p, "%%%02X", *value);
- p += 3;
- }
- else if (*value == ' ')
- *p++ = '+';
- else
- *p++ = *value;
- }
- *p = 0;
-
- rc = start_agent ();
- if (rc)
- return rc;
-
- rc = assuan_transact (agent_ctx, line, NULL, NULL, NULL, NULL, NULL, NULL);
- return map_assuan_err (rc);
-}
-
-
-/* Status callback for the SCD GENKEY command. */
-static AssuanError
-scd_genkey_cb (void *opaque, const char *line)
-{
- struct agent_card_genkey_s *parm = opaque;
- const char *keyword = line;
- int keywordlen;
- gpg_error_t rc;
-
- log_debug ("got status line `%s'\n", line);
- for (keywordlen=0; *line && !spacep (line); line++, keywordlen++)
- ;
- while (spacep (line))
- line++;
-
- if (keywordlen == 7 && !memcmp (keyword, "KEY-FPR", keywordlen))
- {
- parm->fprvalid = unhexify_fpr (line, parm->fpr);
- }
- if (keywordlen == 8 && !memcmp (keyword, "KEY-DATA", keywordlen))
- {
- gcry_mpi_t a;
- const char *name = line;
-
- while (*line && !spacep (line))
- line++;
- while (spacep (line))
- line++;
-
- rc = gcry_mpi_scan (&a, GCRYMPI_FMT_HEX, line, 0, NULL);
- if (rc)
- log_error ("error parsing received key data: %s\n", gpg_strerror (rc));
- else if (*name == 'n' && spacep (name+1))
- parm->n = a;
- else if (*name == 'e' && spacep (name+1))
- parm->e = a;
- else
- {
- log_info ("unknown parameter name in received key data\n");
- gcry_mpi_release (a);
- }
- }
- else if (keywordlen == 14 && !memcmp (keyword,"KEY-CREATED-AT", keywordlen))
- {
- parm->created_at = (u32)strtoul (line, NULL, 10);
- }
-
- return 0;
-}
-
-/* Send a GENKEY command to the SCdaemon. */
-int
-agent_scd_genkey (struct agent_card_genkey_s *info, int keyno, int force)
-{
- int rc;
- char line[ASSUAN_LINELENGTH];
-
- rc = start_agent ();
- if (rc)
- return rc;
-
- memset (info, 0, sizeof *info);
- snprintf (line, DIM(line)-1, "SCD GENKEY %s%d",
- force? "--force ":"", keyno);
- line[DIM(line)-1] = 0;
-
- memset (info, 0, sizeof *info);
- rc = assuan_transact (agent_ctx, line,
- NULL, NULL, NULL, NULL,
- scd_genkey_cb, info);
-
- return map_assuan_err (rc);
-}
-
-
-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;
-}
-
-/* Send a sign command to the scdaemon via gpg-agent's pass thru
- mechanism. */
-int
-agent_scd_pksign (const char *serialno, int hashalgo,
- const unsigned char *indata, size_t indatalen,
- char **r_buf, size_t *r_buflen)
-{
- int rc, i;
- char *p, line[ASSUAN_LINELENGTH];
- membuf_t data;
- size_t len;
-
- /* Note, hashalgo is not yet used but hardwired to SHA1 in SCdaemon. */
-
- *r_buf = NULL;
- *r_buflen = 0;
-
- rc = start_agent ();
- if (rc)
- return rc;
-
- if (indatalen*2 + 50 > DIM(line))
- return gpg_error (GPG_ERR_GENERAL);
-
- sprintf (line, "SCD SETDATA ");
- p = line + strlen (line);
- for (i=0; i < indatalen ; i++, p += 2 )
- sprintf (p, "%02X", indata[i]);
- rc = assuan_transact (agent_ctx, line, NULL, NULL, NULL, NULL, NULL, NULL);
- if (rc)
- return map_assuan_err (rc);
-
- init_membuf (&data, 1024);
-#if 0
- if (!hashalgo) /* Temporary test hack. */
- snprintf (line, DIM(line)-1, "SCD PKAUTH %s", serialno);
- else
-#endif
- snprintf (line, DIM(line)-1, "SCD PKSIGN %s", serialno);
- line[DIM(line)-1] = 0;
- rc = assuan_transact (agent_ctx, line, 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);
-
- return 0;
-}
-
-
-/* Decrypt INDATA of length INDATALEN using the card identified by
- SERIALNO. Return the plaintext in a nwly allocated buffer stored
- at the address of R_BUF.
-
- Note, we currently support only RSA or more exactly algorithms
- taking one input data element. */
-int
-agent_scd_pkdecrypt (const char *serialno,
- const unsigned char *indata, size_t indatalen,
- char **r_buf, size_t *r_buflen)
-{
- int rc, i;
- char *p, line[ASSUAN_LINELENGTH];
- membuf_t data;
- size_t len;
-
- *r_buf = NULL;
- rc = start_agent ();
- if (rc)
- return rc;
-
- /* FIXME: use secure memory where appropriate */
- if (indatalen*2 + 50 > DIM(line))
- return gpg_error (GPG_ERR_GENERAL);
-
- sprintf (line, "SCD SETDATA ");
- p = line + strlen (line);
- for (i=0; i < indatalen ; i++, p += 2 )
- sprintf (p, "%02X", indata[i]);
- rc = assuan_transact (agent_ctx, line, NULL, NULL, NULL, NULL, NULL, NULL);
- if (rc)
- return map_assuan_err (rc);
-
- init_membuf (&data, 1024);
- snprintf (line, DIM(line)-1, "SCD PKDECRYPT %s", serialno);
- line[DIM(line)-1] = 0;
- rc = assuan_transact (agent_ctx, line,
- 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 (!*r_buf)
- return gpg_error (GPG_ERR_ENOMEM);
-
- return 0;
-}
-
-
-/* Change the PIN of an OpenPGP card or reset the retry counter.
- CHVNO 1: Change the PIN
- 2: Same as 1
- 3: Change the admin PIN
- 101: Set a new PIN and reset the retry counter
- 102: Same as 101
- */
-int
-agent_scd_change_pin (int chvno)
-{
- int rc;
- char line[ASSUAN_LINELENGTH];
- const char *reset = "";
-
- if (chvno >= 100)
- reset = "--reset";
- chvno %= 100;
-
- rc = start_agent ();
- if (rc)
- return rc;
-
- snprintf (line, DIM(line)-1, "SCD PASSWD %s %d", reset, chvno);
- line[DIM(line)-1] = 0;
- rc = assuan_transact (agent_ctx, line, NULL, NULL,
- NULL, NULL, NULL, NULL);
- return map_assuan_err (rc);
-}
-
-
-/* Perform a CHECKPIN operation. SERIALNO should be the serial
- number of the card - optioanlly followed by the fingerprint;
- however the fingerprint is ignored here. */
-int
-agent_scd_checkpin (const char *serialno)
-{
- int rc;
- char line[ASSUAN_LINELENGTH];
-
- rc = start_agent ();
- if (rc)
- return rc;
-
- snprintf (line, DIM(line)-1, "SCD CHECKPIN %s", serialno);
- line[DIM(line)-1] = 0;
- return assuan_transact (agent_ctx, line,
- NULL, NULL,
- NULL, NULL, NULL, NULL);
-}
-
-
generated by cgit v1.2.3 (git 2.25.1) at 2025-06-18 11:12:47 +0000