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This commit is contained in:
Werner Koch 1998-01-30 16:23:16 +00:00
parent 9bf8ce27bc
commit 4539178dae
11 changed files with 228 additions and 45 deletions
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3
NEWS
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@ -1,4 +1,7 @@
* added option "--status-fd": see g10/OPTIONS
* We have secure memeory on systems which support mlock().
It is not complete yet, because we do not have signal handler
which does a cleanup in very case.

2
g10/Makefile.am
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@ -43,6 +43,8 @@ g10_SOURCES = g10.c \
import.c \
export.c \
comment.c \
status.c \
status.h \
sig-check.c

7
g10/Makefile.in
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@ -81,6 +81,8 @@ g10_SOURCES = g10.c \
import.c \
export.c \
comment.c \
status.c \
status.h \
sig-check.c
LDADD = -L ../cipher -L ../mpi -L ../util \
@ -107,7 +109,7 @@ free-packet.o getkey.o pkclist.o skclist.o ringedit.o kbnode.o keygen.o \
mainproc.o armor.o mdfilter.o textfilter.o cipher.o elg.o rsa.o \
openfile.o keyid.o trustdb.o parse-packet.o passphrase.o plaintext.o \
pubkey-enc.o seckey-cert.o seskey.o sign.o import.o export.o comment.o \
sig-check.o
status.o sig-check.o
EXTRA_g10_SOURCES =
g10_LDADD = $(LDADD)
DIST_COMMON = Makefile.am Makefile.in
@ -137,7 +139,8 @@ $(srcdir)/.deps/pubkey-enc.P $(srcdir)/.deps/ringedit.P \
$(srcdir)/.deps/rsa.P $(srcdir)/.deps/seckey-cert.P \
$(srcdir)/.deps/seskey.P $(srcdir)/.deps/sig-check.P \
$(srcdir)/.deps/sign.P $(srcdir)/.deps/skclist.P \
$(srcdir)/.deps/textfilter.P $(srcdir)/.deps/trustdb.P
$(srcdir)/.deps/status.P $(srcdir)/.deps/textfilter.P \
$(srcdir)/.deps/trustdb.P
SOURCES = $(g10_SOURCES)
OBJECTS = $(g10_OBJECTS)

7
g10/OPTIONS
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@ -192,6 +192,13 @@ remote-user
secret-keyring filename
# add filename to the list of secret keyrings
status-fd n
# Write status informations to this file descriptor. If this option
# is not used, no status information is writte. This option is for the
# sake of a calling programm (e.g. a MUA) to ease up parsing of output
# and providing a defined set of status messages.
# FIXME: use a format ala "100 Blabla"?
verbose
# Give more informations suring processing. If used 2 times, the input data
# is listed in detail.

19
g10/free-packet.c
View File

@ -56,6 +56,25 @@ free_seckey_enc( PKT_signature *enc )
m_free(enc);
}
/****************
* Return the digest algorith from the signature packet.
* We need this function because the digeste algo depends on the
* used pubkey algorithm.
*/
int
digest_algo_from_sig( PKT_signature *sig )
{
switch( sig->pubkey_algo ) {
case PUBKEY_ALGO_ELGAMAL: return sig->d.elg.digest_algo;
case PUBKEY_ALGO_RSA: return sig->d.rsa.digest_algo;
default: return 0;
}
}
void
release_public_cert_parts( PKT_public_cert *cert )
{

10
g10/g10.c
View File

@ -38,6 +38,7 @@
#include "trustdb.h"
#include "ttyio.h"
#include "i18n.h"
#include "status.h"
enum cmd_values { aNull = 0,
@ -187,7 +188,7 @@ main( int argc, char **argv )
{ 'k', NULL , 0, N_("list keys")},
{ 510, "debug" ,4|16, N_("set debugging flags")},
{ 511, "debug-all" ,0, N_("enable full debugging")},
/* { 512 unused */
{ 512, "status-fd" ,1, N_("write status info to this fd") },
{ 513, "gen-prime" , 0, "\r" },
{ 514, "test" , 0, "\r" },
{ 515, "fingerprint", 0, N_("show the fingerprints")},
@ -329,7 +330,7 @@ main( int argc, char **argv )
case 509: add_keyring(pargs.r.ret_str); nrings++; break;
case 510: opt.debug |= pargs.r.ret_ulong; break;
case 511: opt.debug = ~0; break;
/* case 512: */
case 512: set_status_fd( pargs.r.ret_int ); break;
case 513: set_cmd( &cmd, aPrimegen); break;
case 514: set_cmd( &cmd, aTest); break;
case 515: opt.fingerprint = 1; break;
@ -401,6 +402,7 @@ main( int argc, char **argv )
if( errors )
g10_exit(2);
write_status( STATUS_ENTER );
set_debug();
if( cmd == aKMode || cmd == aKModeC ) { /* kludge to be compatible to pgp */
@ -685,7 +687,9 @@ g10_exit( int rc )
if( opt.verbose )
secmem_dump_stats();
secmem_term();
exit( rc? rc : log_get_errorcount(0)? 2:0 );
rc = rc? rc : log_get_errorcount(0)? 2:0;
write_status( STATUS_LEAVE );
exit(rc );
}

113
g10/mainproc.c
View File

@ -33,6 +33,7 @@
#include "filter.h"
#include "cipher.h"
#include "main.h"
#include "status.h"
/****************
@ -46,7 +47,7 @@ typedef struct {
md_filter_context_t mfx;
DEK *dek;
int last_was_pubkey_enc;
KBNODE cert; /* the current certificate */
KBNODE cert; /* the current certificate / or signature */
int have_data;
IOBUF iobuf; /* used to get the filename etc. */
} *CTX;
@ -74,7 +75,6 @@ add_onepass_sig( CTX c, PACKET *pkt )
KBNODE node;
if( c->cert ) { /* add another packet */
if( c->cert->pkt->pkttype != PKT_ONEPASS_SIG ) {
log_error("add_onepass_sig: another packet is in the way\n");
release_cert( c );
@ -143,29 +143,36 @@ add_signature( CTX c, PACKET *pkt )
{
KBNODE node, n1, n2;
if( !c->cert ) {
/* orphaned signature (no certificate)
* this is the first signature for a following datafile
*/
return 0;
if( pkt->pkttype == PKT_SIGNATURE && !c->cert ) {
/* This is the first signature for a following datafile.
* G10 does not write such packets, instead it always uses
* onepass-sig packets. The drawback of PGP's method
* of writing prepending the signtaure to the data is,
* that it is not possible to make a signature from data
* read from stdin. But we are able to read these stuff. */
node = new_kbnode( pkt );
node->next = c->cert;
c->cert = node;
return 1;
}
assert( c->cert->pkt );
if( c->cert->pkt->pkttype == PKT_ONEPASS_SIG ) {
else if( !c->cert )
return 0;
else if( !c->cert->pkt )
BUG();
else if( c->cert->pkt->pkttype == PKT_ONEPASS_SIG ) {
/* The root is a onepass signature, so we are signing data
* The childs direct under the root are the signatures
* (there is no need to keep the correct sequence of packets)
*/
* (there is no need to keep the correct sequence of packets) */
node = new_kbnode( pkt );
node->next = c->cert->child;
c->cert->child = node;
return 1;
}
if( !c->cert->child ) {
else if( !c->cert->child ) {
log_error("orphaned signature (no userid)\n" );
return 0;
}
/* goto the last user id */
for(n1=c->cert->child; n1->next; n1 = n1->next )
;
@ -564,6 +571,38 @@ print_keyid( FILE *fp, u32 *keyid )
m_free(p);
}
static int
check_sig_and_print( CTX c, KBNODE node )
{
PKT_signature *sig = node->pkt->pkt.signature;
int rc;
rc = do_check_sig(c, node );
if( !rc ) {
write_status( STATUS_GOODSIG );
log_info("Good signature from ");
print_keyid( stderr, sig->keyid );
putc('\n', stderr);
}
else if( rc == G10ERR_BAD_SIGN ) {
write_status( STATUS_BADSIG );
log_error("BAD signature from ");
print_keyid( stderr, sig->keyid );
putc('\n', stderr);
if( opt.batch )
g10_exit(1);
}
else {
write_status( STATUS_ERRSIG );
log_error("Can't check signature made by %08lX: %s\n",
sig->keyid[1], g10_errstr(rc) );
}
return rc;
}
/****************
* Process the tree which starts at node
*/
@ -588,9 +627,13 @@ proc_tree( CTX c, KBNODE node )
else { /* check all signatures */
if( !c->have_data ) {
free_md_filter_context( &c->mfx );
/* fixme: take the digest algo to use from the
* onepass_sig packet (if we have these) */
c->mfx.md = md_open(DIGEST_ALGO_RMD160, 0);
/* prepare to create all requested message digests */
c->mfx.md = md_open(0, 0);
for(n1=node->child; n1; n1 = n1->next ) {
md_enable( c->mfx.md,
digest_algo_from_sig(n1->pkt->pkt.signature));
}
/* ask for file and hash it */
rc = ask_for_detached_datafile( &c->mfx,
iobuf_get_fname(c->iobuf));
if( rc ) {
@ -599,30 +642,26 @@ proc_tree( CTX c, KBNODE node )
}
}
for(n1=node->child; n1; n1 = n1->next ) {
PKT_signature *sig = n1->pkt->pkt.signature;
rc = do_check_sig(c, n1 );
if( !rc ) {
log_info("Good signature from ");
print_keyid( stderr, sig->keyid );
putc('\n', stderr);
}
else if( rc == G10ERR_BAD_SIGN ) {
log_error("BAD signature from ");
print_keyid( stderr, sig->keyid );
putc('\n', stderr);
if( opt.batch )
g10_exit(1);
}
else
log_error("Can't check signature made by %08lX: %s\n",
sig->keyid[1], g10_errstr(rc) );
}
for(n1=node->child; n1; n1 = n1->next )
check_sig_and_print( c, n1 );
}
}
else if( node->pkt->pkttype == PKT_SIGNATURE ) {
PKT_signature *sig = node->pkt->pkt.signature;
log_info("proc_tree: old style signature\n");
if( !c->have_data ) {
free_md_filter_context( &c->mfx );
c->mfx.md = md_open(digest_algo_from_sig(sig), 0);
rc = ask_for_detached_datafile( &c->mfx,
iobuf_get_fname(c->iobuf));
if( rc ) {
log_error("can't hash datafile: %s\n", g10_errstr(rc));
return;
}
}
check_sig_and_print( c, node );
}
else
log_error("proc_tree: invalid root packet\n");

1
g10/packet.h
View File

@ -230,6 +230,7 @@ void hash_public_cert( MD_HANDLE md, PKT_public_cert *pkc );
/*-- free-packet.c --*/
void free_pubkey_enc( PKT_pubkey_enc *enc );
void free_seckey_enc( PKT_signature *enc );
int digest_algo_from_sig( PKT_signature *sig );
void release_public_cert_parts( PKT_public_cert *cert );
void free_public_cert( PKT_public_cert *cert );
void release_secret_cert_parts( PKT_secret_cert *cert );

57
g10/status.c Normal file
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@ -0,0 +1,57 @@
/* status.c
* Copyright (c) 1997 by Werner Koch (dd9jn)
*
* This file is part of G10.
*
* G10 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.
*
* G10 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 <unistd.h>
#include "status.h"
static int fd = -1;
void
set_status_fd( int newfd )
{
fd = newfd;
}
void
write_status( int no )
{
const char *s;
if( fd == -1 )
return; /* not enabled */
switch( no ) {
case STATUS_ENTER : s = "ENTER\n"; break;
case STATUS_LEAVE : s = "LEAVE\n"; break;
case STATUS_ABORT : s = "ABORT\n"; break;
case STATUS_GOODSIG: s = "GOODSIG\n"; break;
case STATUS_BADSIG : s = "BADSIG\n"; break;
case STATUS_ERRSIG : s = "ERRSIG\n"; break;
default: s = "?\n"; break;
}
write( fd, s, strlen(s) );
}

41
g10/status.h Normal file
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@ -0,0 +1,41 @@
/* status.h
* Copyright (c) 1997 by Werner Koch (dd9jn)
*
* This file is part of G10.
*
* G10 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.
*
* G10 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
*/
#ifndef G10_STATUS_H
#define G10_STATUS_H
#define STATUS_ENTER 1
#define STATUS_LEAVE 2
#define STATUS_ABORT 3
#define STATUS_GOODSIG 4
#define STATUS_BADSIG 5
#define STATUS_ERRSIG 6
/*-- status.c --*/
void set_status_fd( int fd );
void write_status( int no );
#endif /*G10_STATUS_H*/

13
mpi/mpicoder.c
View File

@ -244,14 +244,21 @@ mpi_print( FILE *fp, MPI a, int mode )
u32
mpi_get_keyid( MPI a, u32 *keyid )
{
#if BYTES_PER_MPI_LIMB != 4
#error Make this function work with other LIMB sizes
#endif
#if BYTES_PER_MPI_LIMB == 4
if( keyid ) {
keyid[0] = a->nlimbs >= 2? a->d[1] : 0;
keyid[1] = a->nlimbs >= 1? a->d[0] : 0;
}
return a->nlimbs >= 1? a->d[0] : 0;
#elif BYTES_PER_MPI_LIMB == 8
if( keyid ) {
keyid[0] = a->nlimbs? (u32)(a->d[0] >> 32) : 0;
keyid[1] = a->nlimbs? (u32)(a->d[0] & 0xffffffff) : 0;
}
return a->nlimbs? (u32)(a->d[0] & 0xffffffff) : 0;
#else
#error Make this function work with other LIMB sizes
#endif
}