/* verify.c - Verify a messages signature
- * Copyright (C) 2001 Free Software Foundation, Inc.
+ * Copyright (C) 2001, 2002, 2003, 2007,
+ * 2010 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
+ * the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GnuPG is distributed in the hope that it will be useful,
* 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
+ * along with this program; if not, see <https://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
-#include <unistd.h>
+#include <unistd.h>
#include <time.h>
#include <assert.h>
+#include "gpgsm.h"
#include <gcrypt.h>
#include <ksba.h>
-#include "gpgsm.h"
#include "keydb.h"
-#include "i18n.h"
-
-struct reader_cb_parm_s {
- FILE *fp;
-};
+#include "../common/i18n.h"
-
-/* FIXME: Move this to jnlib */
static char *
-strtimestamp (time_t atime)
+strtimestamp_r (ksba_isotime_t atime)
{
char *buffer = xmalloc (15);
-
- if (atime < 0)
- {
- strcpy (buffer, "????" "-??" "-??");
- }
+
+ if (!atime || !*atime)
+ strcpy (buffer, "none");
else
- {
- struct tm *tp;
-
- tp = gmtime( &atime );
- sprintf (buffer, "%04d-%02d-%02d",
- 1900+tp->tm_year, tp->tm_mon+1, tp->tm_mday);
- }
+ sprintf (buffer, "%.4s-%.2s-%.2s", atime, atime+4, atime+6);
return buffer;
}
-
-/* FIXME: We need to write a generic reader callback which should be able
- to detect and convert base-64 */
-static int
-reader_cb (void *cb_value, char *buffer, size_t count, size_t *nread)
+/* Hash the data for a detached signature. Returns 0 on success. */
+static gpg_error_t
+hash_data (int fd, gcry_md_hd_t md)
{
- struct reader_cb_parm_s *parm = cb_value;
- size_t n;
- int c = 0;
-
- *nread = 0;
- if (!buffer)
- return -1; /* not supported */
-
- for (n=0; n < count; n++)
- {
- c = getc (parm->fp);
- if (c == EOF)
- {
- if ( ferror (parm->fp) )
- return -1;
- if (n)
- break; /* return what we have before an EOF */
- return -1;
- }
- *(byte *)buffer++ = c;
- }
-
- *nread = n;
- return 0;
-}
-
-/* fixme: duplicated from import.c */
-static void
-store_cert (KsbaCert cert)
-{
- KEYDB_HANDLE kh;
- int rc;
-
- kh = keydb_new (0);
- if (!kh)
- {
- log_error (_("failed to allocated keyDB handle\n"));
- return;
- }
- rc = keydb_locate_writable (kh, 0);
- if (rc)
- log_error (_("error finding writable keyDB: %s\n"), gnupg_strerror (rc));
-
- rc = keydb_insert_cert (kh, cert);
- if (rc)
- {
- log_error (_("error storing certificate: %s\n"), gnupg_strerror (rc));
- }
- keydb_release (kh);
-}
-
-
-
-static void
-print_integer (unsigned char *p)
-{
- unsigned long len;
-
- if (!p)
- log_printf ("none");
- else
- {
- len = (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3];
- for (p+=4; len; len--, p++)
- log_printf ("%02X", *p);
- }
-}
-
-
-static void
-hash_data (int fd, GCRY_MD_HD md)
-{
- FILE *fp;
+ gpg_error_t err = 0;
+ estream_t fp;
char buffer[4096];
int nread;
- fp = fdopen ( dup (fd), "rb");
+ fp = es_fdopen_nc (fd, "rb");
if (!fp)
{
- log_error ("fdopen(%d) failed: %s\n", fd, strerror (errno));
- return;
+ err = gpg_error_from_syserror ();
+ log_error ("fdopen(%d) failed: %s\n", fd, gpg_strerror (err));
+ return err;
}
- do
+ do
{
- nread = fread (buffer, 1, DIM(buffer), fp);
+ nread = es_fread (buffer, 1, DIM(buffer), fp);
gcry_md_write (md, buffer, nread);
}
while (nread);
- if (ferror (fp))
- log_error ("read error on fd %d: %s\n", fd, strerror (errno));
- fclose (fp);
+ if (es_ferror (fp))
+ {
+ err = gpg_error_from_syserror ();
+ log_error ("read error on fd %d: %s\n", fd, gpg_strerror (err));
+ }
+ es_fclose (fp);
+ return err;
}
+
\f
-/* Perform a verify operation. To verify detached signatures, data_fd
- must be different than -1 */
+/* Perform a verify operation. To verify detached signatures, DATA_FD
+ must be different than -1. With OUT_FP given and a non-detached
+ signature, the signed material is written to that stream. */
int
-gpgsm_verify (CTRL ctrl, int in_fd, int data_fd)
+gpgsm_verify (ctrl_t ctrl, int in_fd, int data_fd, estream_t out_fp)
{
int i, rc;
- KsbaError err;
- KsbaReader reader = NULL;
- KsbaWriter writer = NULL;
- KsbaCMS cms = NULL;
- KsbaStopReason stopreason;
- KsbaCert cert;
+ gnupg_ksba_io_t b64reader = NULL;
+ gnupg_ksba_io_t b64writer = NULL;
+ ksba_reader_t reader;
+ ksba_writer_t writer = NULL;
+ ksba_cms_t cms = NULL;
+ ksba_stop_reason_t stopreason;
+ ksba_cert_t cert;
KEYDB_HANDLE kh;
- GCRY_MD_HD data_md = NULL;
- struct reader_cb_parm_s rparm;
+ gcry_md_hd_t data_md = NULL;
int signer;
const char *algoid;
int algo;
int is_detached;
+ estream_t in_fp = NULL;
+ char *p;
- memset (&rparm, 0, sizeof rparm);
+ audit_set_type (ctrl->audit, AUDIT_TYPE_VERIFY);
- kh = keydb_new (0);
+ kh = keydb_new ();
if (!kh)
{
- log_error (_("failed to allocated keyDB handle\n"));
- rc = GNUPG_General_Error;
+ log_error (_("failed to allocate keyDB handle\n"));
+ rc = gpg_error (GPG_ERR_GENERAL);
goto leave;
}
- rparm.fp = fdopen ( dup (in_fd), "rb");
- if (!rparm.fp)
+ in_fp = es_fdopen_nc (in_fd, "rb");
+ if (!in_fp)
{
+ rc = gpg_error_from_syserror ();
log_error ("fdopen() failed: %s\n", strerror (errno));
- rc = seterr (IO_Error);
goto leave;
}
- /* setup a skaba reader which uses a callback function so that we can
- strip off a base64 encoding when necessary */
- reader = ksba_reader_new ();
- writer = ksba_writer_new ();
- if (!reader || !writer)
- {
- rc = seterr (Out_Of_Core);
- goto leave;
- }
-
- rc = ksba_reader_set_cb (reader, reader_cb, &rparm );
+ rc = gnupg_ksba_create_reader
+ (&b64reader, ((ctrl->is_pem? GNUPG_KSBA_IO_PEM : 0)
+ | (ctrl->is_base64? GNUPG_KSBA_IO_BASE64 : 0)
+ | (ctrl->autodetect_encoding? GNUPG_KSBA_IO_AUTODETECT : 0)),
+ in_fp, &reader);
if (rc)
{
- ksba_reader_release (reader);
- rc = map_ksba_err (rc);
+ log_error ("can't create reader: %s\n", gpg_strerror (rc));
goto leave;
}
- cms = ksba_cms_new ();
- if (!cms)
+ if (out_fp)
{
- rc = seterr (Out_Of_Core);
- goto leave;
+ rc = gnupg_ksba_create_writer
+ (&b64writer, ((ctrl->create_pem? GNUPG_KSBA_IO_PEM : 0)
+ | (ctrl->create_base64? GNUPG_KSBA_IO_BASE64 : 0)),
+ ctrl->pem_name, out_fp, &writer);
+ if (rc)
+ {
+ log_error ("can't create writer: %s\n", gpg_strerror (rc));
+ goto leave;
+ }
}
- err = ksba_cms_set_reader_writer (cms, reader, writer);
- if (err)
+ rc = ksba_cms_new (&cms);
+ if (rc)
+ goto leave;
+
+ rc = ksba_cms_set_reader_writer (cms, reader, writer);
+ if (rc)
{
- log_debug ("ksba_cms_set_reader_writer failed: %s\n",
- ksba_strerror (err));
- rc = map_ksba_err (err);
+ log_error ("ksba_cms_set_reader_writer failed: %s\n",
+ gpg_strerror (rc));
goto leave;
}
- data_md = gcry_md_open (0, 0);
- if (!data_md)
+ rc = gcry_md_open (&data_md, 0, 0);
+ if (rc)
{
- rc = map_gcry_err (gcry_errno());
- log_error ("md_open failed: %s\n", gcry_strerror (-1));
+ log_error ("md_open failed: %s\n", gpg_strerror (rc));
goto leave;
}
+ if (DBG_HASHING)
+ gcry_md_debug (data_md, "vrfy.data");
+
+ audit_log (ctrl->audit, AUDIT_SETUP_READY);
is_detached = 0;
- do
+ do
{
- err = ksba_cms_parse (cms, &stopreason);
- if (err)
+ rc = ksba_cms_parse (cms, &stopreason);
+ if (rc)
{
- log_debug ("ksba_cms_parse failed: %s\n", ksba_strerror (err));
- rc = map_ksba_err (err);
+ log_error ("ksba_cms_parse failed: %s\n", gpg_strerror (rc));
goto leave;
}
- log_debug ("ksba_cms_parse - stop reason %d\n", stopreason);
+
if (stopreason == KSBA_SR_NEED_HASH)
{
is_detached = 1;
- log_debug ("Detached signature\n");
- }
- if (stopreason == KSBA_SR_BEGIN_DATA)
- {
- log_error ("error: only detached signatures are supportted\n");
- rc = GNUPG_Not_Implemented;
- goto leave;
+ audit_log (ctrl->audit, AUDIT_DETACHED_SIGNATURE);
+ if (opt.verbose)
+ log_info ("detached signature\n");
}
if (stopreason == KSBA_SR_NEED_HASH
|| stopreason == KSBA_SR_BEGIN_DATA)
- { /* We are now able to enable the hash algorithms */
+ {
+ audit_log (ctrl->audit, AUDIT_GOT_DATA);
+
+ /* We are now able to enable the hash algorithms */
for (i=0; (algoid=ksba_cms_get_digest_algo_list (cms, i)); i++)
{
algo = gcry_md_map_name (algoid);
if (!algo)
- log_error ("unknown hash algorithm `%s'\n",
- algoid? algoid:"?");
+ {
+ log_error ("unknown hash algorithm '%s'\n",
+ algoid? algoid:"?");
+ if (algoid
+ && ( !strcmp (algoid, "1.2.840.113549.1.1.2")
+ ||!strcmp (algoid, "1.2.840.113549.2.2")))
+ log_info (_("(this is the MD2 algorithm)\n"));
+ audit_log_s (ctrl->audit, AUDIT_BAD_DATA_HASH_ALGO, algoid);
+ }
else
- gcry_md_enable (data_md, algo);
+ {
+ if (DBG_X509)
+ log_debug ("enabling hash algorithm %d (%s)\n",
+ algo, algoid? algoid:"");
+ gcry_md_enable (data_md, algo);
+ audit_log_i (ctrl->audit, AUDIT_DATA_HASH_ALGO, algo);
+ }
+ }
+ if (opt.extra_digest_algo)
+ {
+ if (DBG_X509)
+ log_debug ("enabling extra hash algorithm %d\n",
+ opt.extra_digest_algo);
+ gcry_md_enable (data_md, opt.extra_digest_algo);
+ audit_log_i (ctrl->audit, AUDIT_DATA_HASH_ALGO,
+ opt.extra_digest_algo);
}
if (is_detached)
{
if (data_fd == -1)
{
- log_error ("detached signature but no data given\n");
- rc = GNUPG_Bad_Signature;
- goto leave;
+ log_info ("detached signature w/o data "
+ "- assuming certs-only\n");
+ audit_log (ctrl->audit, AUDIT_CERT_ONLY_SIG);
}
- hash_data (data_fd, data_md);
+ else
+ audit_log_ok (ctrl->audit, AUDIT_DATA_HASHING,
+ hash_data (data_fd, data_md));
+ }
+ else
+ {
+ ksba_cms_set_hash_function (cms, HASH_FNC, data_md);
}
}
+ else if (stopreason == KSBA_SR_END_DATA)
+ { /* The data bas been hashed */
+ audit_log_ok (ctrl->audit, AUDIT_DATA_HASHING, 0);
+ }
+ }
+ while (stopreason != KSBA_SR_READY);
+
+ if (b64writer)
+ {
+ rc = gnupg_ksba_finish_writer (b64writer);
+ if (rc)
+ {
+ log_error ("write failed: %s\n", gpg_strerror (rc));
+ audit_log_ok (ctrl->audit, AUDIT_WRITE_ERROR, rc);
+ goto leave;
+ }
}
- while (stopreason != KSBA_SR_READY);
if (data_fd != -1 && !is_detached)
{
- log_error ("data given for a non-detached signature");
- rc = GNUPG_Conflict;
+ log_error ("data given for a non-detached signature\n");
+ rc = gpg_error (GPG_ERR_CONFLICT);
+ audit_log (ctrl->audit, AUDIT_USAGE_ERROR);
goto leave;
}
for (i=0; (cert=ksba_cms_get_cert (cms, i)); i++)
{
- log_debug ("storing certifcate %d\n", i);
- /* Fixme: we should mark the stored certificates as temporary
- and put them in a cache first */
- store_cert (cert);
+ /* Fixme: it might be better to check the validity of the
+ certificate first before entering it into the DB. This way
+ we would avoid cluttering the DB with invalid
+ certificates. */
+ audit_log_cert (ctrl->audit, AUDIT_SAVE_CERT, cert,
+ keydb_store_cert (ctrl, cert, 0, NULL));
ksba_cert_release (cert);
}
cert = NULL;
- err = 0;
- for (signer=0; signer < 1; signer++)
+ for (signer=0; ; signer++)
{
char *issuer = NULL;
- char *sigval = NULL;
- unsigned char *serial;
+ ksba_sexp_t sigval = NULL;
+ ksba_isotime_t sigtime, keyexptime;
+ ksba_sexp_t serial;
char *msgdigest = NULL;
size_t msgdigestlen;
+ char *ctattr;
+ int sigval_hash_algo;
+ int info_pkalgo;
+ unsigned int verifyflags;
+
+ rc = ksba_cms_get_issuer_serial (cms, signer, &issuer, &serial);
+ if (!signer && gpg_err_code (rc) == GPG_ERR_NO_DATA
+ && data_fd == -1 && is_detached)
+ {
+ log_info ("certs-only message accepted\n");
+ rc = 0;
+ break;
+ }
+ if (rc)
+ {
+ if (signer && rc == -1)
+ rc = 0;
+ break;
+ }
+
+ gpgsm_status (ctrl, STATUS_NEWSIG, NULL);
+ audit_log_i (ctrl->audit, AUDIT_NEW_SIG, signer);
+
+ if (DBG_X509)
+ {
+ log_debug ("signer %d - issuer: '%s'\n",
+ signer, issuer? issuer:"[NONE]");
+ log_debug ("signer %d - serial: ", signer);
+ gpgsm_dump_serial (serial);
+ log_printf ("\n");
+ }
+ if (ctrl->audit)
+ {
+ char *tmpstr = gpgsm_format_sn_issuer (serial, issuer);
+ audit_log_s (ctrl->audit, AUDIT_SIG_NAME, tmpstr);
+ xfree (tmpstr);
+ }
+
+ rc = ksba_cms_get_signing_time (cms, signer, sigtime);
+ if (gpg_err_code (rc) == GPG_ERR_NO_DATA)
+ *sigtime = 0;
+ else if (rc)
+ {
+ log_error ("error getting signing time: %s\n", gpg_strerror (rc));
+ *sigtime = 0; /* (we can't encode an error in the time string.) */
+ }
+
+ rc = ksba_cms_get_message_digest (cms, signer,
+ &msgdigest, &msgdigestlen);
+ if (!rc)
+ {
+ algoid = ksba_cms_get_digest_algo (cms, signer);
+ algo = gcry_md_map_name (algoid);
+ if (DBG_X509)
+ log_debug ("signer %d - digest algo: %d\n", signer, algo);
+ if (! gcry_md_is_enabled (data_md, algo))
+ {
+ log_error ("digest algo %d (%s) has not been enabled\n",
+ algo, algoid?algoid:"");
+ audit_log_s (ctrl->audit, AUDIT_SIG_STATUS, "unsupported");
+ goto next_signer;
+ }
+ }
+ else if (gpg_err_code (rc) == GPG_ERR_NO_DATA)
+ {
+ assert (!msgdigest);
+ rc = 0;
+ algoid = NULL;
+ algo = 0;
+ }
+ else /* real error */
+ {
+ audit_log_s (ctrl->audit, AUDIT_SIG_STATUS, "error");
+ break;
+ }
+
+ rc = ksba_cms_get_sigattr_oids (cms, signer,
+ "1.2.840.113549.1.9.3", &ctattr);
+ if (!rc)
+ {
+ const char *s;
- err = ksba_cms_get_issuer_serial (cms, signer, &issuer, &serial);
- if (err)
- break;
- log_debug ("signer %d - issuer: `%s'\n", signer, issuer? issuer:"[NONE]");
- log_debug ("signer %d - serial: ", signer);
- print_integer (serial);
- log_printf ("\n");
-
- err = ksba_cms_get_message_digest (cms, signer,
- &msgdigest, &msgdigestlen);
- if (err)
- break;
-
- algoid = ksba_cms_get_digest_algo (cms, signer);
- algo = gcry_md_map_name (algoid);
- log_debug ("signer %d - digest algo: %d\n", signer, algo);
- if ( !gcry_md_info (data_md, GCRYCTL_IS_ALGO_ENABLED, &algo, NULL) )
+ if (DBG_X509)
+ log_debug ("signer %d - content-type attribute: %s",
+ signer, ctattr);
+
+ s = ksba_cms_get_content_oid (cms, 1);
+ if (!s || strcmp (ctattr, s))
+ {
+ log_error ("content-type attribute does not match "
+ "actual content-type\n");
+ ksba_free (ctattr);
+ ctattr = NULL;
+ audit_log_s (ctrl->audit, AUDIT_SIG_STATUS, "bad");
+ goto next_signer;
+ }
+ ksba_free (ctattr);
+ ctattr = NULL;
+ }
+ else if (rc != -1)
{
- log_debug ("digest algo %d has not been enabled\n", algo);
+ log_error ("error getting content-type attribute: %s\n",
+ gpg_strerror (rc));
+ audit_log_s (ctrl->audit, AUDIT_SIG_STATUS, "bad");
goto next_signer;
}
+ rc = 0;
+
sigval = ksba_cms_get_sig_val (cms, signer);
if (!sigval)
{
log_error ("no signature value available\n");
+ audit_log_s (ctrl->audit, AUDIT_SIG_STATUS, "bad");
goto next_signer;
}
- log_debug ("signer %d - signature: `%s'\n", signer, sigval);
+ sigval_hash_algo = hash_algo_from_sigval (sigval);
+ if (DBG_X509)
+ {
+ log_debug ("signer %d - signature available (sigval hash=%d)",
+ signer, sigval_hash_algo);
+/* log_printhex ("sigval ", sigval, */
+/* gcry_sexp_canon_len (sigval, 0, NULL, NULL)); */
+ }
+ if (!sigval_hash_algo)
+ sigval_hash_algo = algo; /* Fallback used e.g. with old libksba. */
/* Find the certificate of the signer */
keydb_search_reset (kh);
- rc = keydb_search_issuer_sn (kh, issuer, serial);
+ rc = keydb_search_issuer_sn (ctrl, kh, issuer, serial);
if (rc)
{
- log_debug ("failed to find the certificate: %s\n",
- gnupg_strerror(rc));
+ if (rc == -1)
+ {
+ log_error ("certificate not found\n");
+ rc = gpg_error (GPG_ERR_NO_PUBKEY);
+ }
+ else
+ log_error ("failed to find the certificate: %s\n",
+ gpg_strerror(rc));
+ {
+ char numbuf[50];
+ sprintf (numbuf, "%d", rc);
+
+ gpgsm_status2 (ctrl, STATUS_ERROR, "verify.findkey",
+ numbuf, NULL);
+ }
+ audit_log_s (ctrl->audit, AUDIT_SIG_STATUS, "no-cert");
goto next_signer;
}
rc = keydb_get_cert (kh, &cert);
if (rc)
{
- log_debug ("failed to get cert: %s\n", gnupg_strerror (rc));
+ log_error ("failed to get cert: %s\n", gpg_strerror (rc));
+ audit_log_s (ctrl->audit, AUDIT_SIG_STATUS, "error");
goto next_signer;
}
+ log_info (_("Signature made "));
+ if (*sigtime)
+ dump_isotime (sigtime);
+ else
+ log_printf (_("[date not given]"));
+ log_printf (_(" using certificate ID 0x%08lX\n"),
+ gpgsm_get_short_fingerprint (cert, NULL));
+
+ audit_log_i (ctrl->audit, AUDIT_DATA_HASH_ALGO, algo);
+
if (msgdigest)
{ /* Signed attributes are available. */
- GCRY_MD_HD md;
+ gcry_md_hd_t md;
unsigned char *s;
- /* check that the message digest in the signed attributes
- matches the one we calculated on the data */
+ /* Check that the message digest in the signed attributes
+ matches the one we calculated on the data. */
s = gcry_md_read (data_md, algo);
if ( !s || !msgdigestlen
|| gcry_md_get_algo_dlen (algo) != msgdigestlen
- || !s || memcmp (s, msgdigest, msgdigestlen) )
+ || memcmp (s, msgdigest, msgdigestlen) )
{
- log_error ("message digest attribute does not "
- "match calculated one\n");
- gpgsm_status (ctrl, STATUS_BADSIG, NULL);
- goto next_signer;
+ char *fpr;
+
+ log_error (_("invalid signature: message digest attribute "
+ "does not match computed one\n"));
+ if (DBG_X509)
+ {
+ if (msgdigest)
+ log_printhex ("message: ", msgdigest, msgdigestlen);
+ if (s)
+ log_printhex ("computed: ",
+ s, gcry_md_get_algo_dlen (algo));
+ }
+ fpr = gpgsm_fpr_and_name_for_status (cert);
+ gpgsm_status (ctrl, STATUS_BADSIG, fpr);
+ xfree (fpr);
+ audit_log_s (ctrl->audit, AUDIT_SIG_STATUS, "bad");
+ goto next_signer;
}
-
- md = gcry_md_open (algo, 0);
- if (!md)
+
+ audit_log_i (ctrl->audit, AUDIT_ATTR_HASH_ALGO, sigval_hash_algo);
+ rc = gcry_md_open (&md, sigval_hash_algo, 0);
+ if (rc)
{
- log_error ("md_open failed: %s\n", gcry_strerror (-1));
+ log_error ("md_open failed: %s\n", gpg_strerror (rc));
+ audit_log_s (ctrl->audit, AUDIT_SIG_STATUS, "error");
goto next_signer;
}
+ if (DBG_HASHING)
+ gcry_md_debug (md, "vrfy.attr");
+
ksba_cms_set_hash_function (cms, HASH_FNC, md);
rc = ksba_cms_hash_signed_attrs (cms, signer);
if (rc)
{
- log_debug ("hashing signed attrs failed: %s\n",
- ksba_strerror (rc));
+ log_error ("hashing signed attrs failed: %s\n",
+ gpg_strerror (rc));
gcry_md_close (md);
+ audit_log_s (ctrl->audit, AUDIT_SIG_STATUS, "error");
goto next_signer;
}
- rc = gpgsm_check_cms_signature (cert, sigval, md, algo);
+ rc = gpgsm_check_cms_signature (cert, sigval, md,
+ sigval_hash_algo, &info_pkalgo);
gcry_md_close (md);
}
else
{
- rc = gpgsm_check_cms_signature (cert, sigval, data_md, algo);
+ rc = gpgsm_check_cms_signature (cert, sigval, data_md,
+ algo, &info_pkalgo);
}
if (rc)
{
- log_error ("invalid signature: %s\n", gnupg_strerror (rc));
- gpgsm_status (ctrl, STATUS_BADSIG, NULL);
+ char *fpr;
+
+ log_error ("invalid signature: %s\n", gpg_strerror (rc));
+ fpr = gpgsm_fpr_and_name_for_status (cert);
+ gpgsm_status (ctrl, STATUS_BADSIG, fpr);
+ xfree (fpr);
+ audit_log_s (ctrl->audit, AUDIT_SIG_STATUS, "bad");
goto next_signer;
}
- log_debug ("signature okay - checking certs\n");
- gpgsm_status (ctrl, STATUS_GOODSIG, NULL);
+ rc = gpgsm_cert_use_verify_p (cert); /*(this displays an info message)*/
+ if (rc)
+ {
+ gpgsm_status_with_err_code (ctrl, STATUS_ERROR, "verify.keyusage",
+ gpg_err_code (rc));
+ rc = 0;
+ }
+
+ if (DBG_X509)
+ log_debug ("signature okay - checking certs\n");
+ audit_log (ctrl->audit, AUDIT_VALIDATE_CHAIN);
+ rc = gpgsm_validate_chain (ctrl, cert,
+ *sigtime? sigtime : "19700101T000000",
+ keyexptime, 0,
+ NULL, 0, &verifyflags);
{
- char *buf, *fpr, *tstr;
+ char *fpr, *buf, *tstr;
+
+ fpr = gpgsm_fpr_and_name_for_status (cert);
+ if (gpg_err_code (rc) == GPG_ERR_CERT_EXPIRED)
+ {
+ gpgsm_status (ctrl, STATUS_EXPKEYSIG, fpr);
+ rc = 0;
+ }
+ else
+ gpgsm_status (ctrl, STATUS_GOODSIG, fpr);
+
+ xfree (fpr);
fpr = gpgsm_get_fingerprint_hexstring (cert, GCRY_MD_SHA1);
- tstr = strtimestamp ( 42 /*fixme: get right time */);
- buf = xmalloc ( strlen(fpr) + strlen (tstr) + 100);
- sprintf (buf, "%s %s %lu", fpr, tstr, (unsigned long)42 );
+ tstr = strtimestamp_r (sigtime);
+ buf = xasprintf ("%s %s %s %s 0 0 %d %d 00", fpr, tstr,
+ *sigtime? sigtime : "0",
+ *keyexptime? keyexptime : "0",
+ info_pkalgo, algo);
xfree (tstr);
xfree (fpr);
gpgsm_status (ctrl, STATUS_VALIDSIG, buf);
xfree (buf);
}
- rc = gpgsm_validate_path (cert);
- if (rc)
+ audit_log_ok (ctrl->audit, AUDIT_CHAIN_STATUS, rc);
+ if (rc) /* of validate_chain */
{
- log_error ("invalid certification path: %s\n", gnupg_strerror (rc));
- if (rc == GNUPG_Bad_Certificate_Path
- || rc == GNUPG_Bad_Certificate)
- gpgsm_status (ctrl, STATUS_TRUST_NEVER, NULL);
+ log_error ("invalid certification chain: %s\n", gpg_strerror (rc));
+ if (gpg_err_code (rc) == GPG_ERR_BAD_CERT_CHAIN
+ || gpg_err_code (rc) == GPG_ERR_BAD_CERT
+ || gpg_err_code (rc) == GPG_ERR_BAD_CA_CERT
+ || gpg_err_code (rc) == GPG_ERR_CERT_REVOKED)
+ gpgsm_status_with_err_code (ctrl, STATUS_TRUST_NEVER, NULL,
+ gpg_err_code (rc));
else
- gpgsm_status (ctrl, STATUS_TRUST_UNDEFINED, NULL);
+ gpgsm_status_with_err_code (ctrl, STATUS_TRUST_UNDEFINED, NULL,
+ gpg_err_code (rc));
+ audit_log_s (ctrl->audit, AUDIT_SIG_STATUS, "bad");
goto next_signer;
}
- log_info ("signature is good\n");
- gpgsm_status (ctrl, STATUS_TRUST_FULLY, NULL);
-
+
+ audit_log_s (ctrl->audit, AUDIT_SIG_STATUS, "good");
+
+ for (i=0; (p = ksba_cert_get_subject (cert, i)); i++)
+ {
+ log_info (!i? _("Good signature from")
+ : _(" aka"));
+ log_printf (" \"");
+ gpgsm_es_print_name (log_get_stream (), p);
+ log_printf ("\"\n");
+ ksba_free (p);
+ }
+
+ /* Print a note if this is a qualified signature. */
+ {
+ size_t qualbuflen;
+ char qualbuffer[1];
+
+ rc = ksba_cert_get_user_data (cert, "is_qualified", &qualbuffer,
+ sizeof (qualbuffer), &qualbuflen);
+ if (!rc && qualbuflen)
+ {
+ if (*qualbuffer)
+ {
+ log_info (_("This is a qualified signature\n"));
+ if (!opt.qualsig_approval)
+ log_info
+ (_("Note, that this software is not officially approved "
+ "to create or verify such signatures.\n"));
+ }
+ }
+ else if (gpg_err_code (rc) != GPG_ERR_NOT_FOUND)
+ log_error ("get_user_data(is_qualified) failed: %s\n",
+ gpg_strerror (rc));
+ }
+
+ gpgsm_status (ctrl, STATUS_TRUST_FULLY,
+ (verifyflags & VALIDATE_FLAG_STEED)?
+ "0 steed":
+ (verifyflags & VALIDATE_FLAG_CHAIN_MODEL)?
+ "0 chain": "0 shell");
+
next_signer:
rc = 0;
cert = NULL;
}
rc = 0;
- if (err)
- {
- log_debug ("ksba error: %s\n", ksba_strerror (err));
- rc = map_ksba_err (rc);
- }
-
-
leave:
ksba_cms_release (cms);
- ksba_reader_release (reader);
- keydb_release (kh);
+ gnupg_ksba_destroy_reader (b64reader);
+ gnupg_ksba_destroy_writer (b64writer);
+ keydb_release (kh);
gcry_md_close (data_md);
- if (rparm.fp)
- fclose (rparm.fp);
- return rc;
-}
+ es_fclose (in_fp);
+ if (rc)
+ {
+ char numbuf[50];
+ sprintf (numbuf, "%d", rc );
+ gpgsm_status2 (ctrl, STATUS_ERROR, "verify.leave",
+ numbuf, NULL);
+ }
+ return rc;
+}
projects / gnupg.git / blobdiff