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a255ea76ae
gnupg/g10/keyedit.c
Werner Koch a255ea76ae Added a way to update preferences
2001-08-09 13:11:51 +00:00

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/* keyedit.c - keyedit stuff
* Copyright (C) 1998, 1999, 2000, 2001 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 <assert.h>
#include <ctype.h>
#include "options.h"
#include "packet.h"
#include "errors.h"
#include "iobuf.h"
#include "keydb.h"
#include "memory.h"
#include "util.h"
#include "main.h"
#include "trustdb.h"
#include "filter.h"
#include "ttyio.h"
#include "status.h"
#include "i18n.h"
static void show_prefs( KBNODE keyblock, PKT_user_id *uid, int verbose );
static void show_key_with_all_names( KBNODE keyblock,
int only_marked, int with_fpr, int with_subkeys, int with_prefs );
static void show_key_and_fingerprint( KBNODE keyblock );
static void show_fingerprint( PKT_public_key *pk );
static int menu_adduid( KBNODE keyblock, KBNODE sec_keyblock );
static void menu_deluid( KBNODE pub_keyblock, KBNODE sec_keyblock );
static int menu_delsig( KBNODE pub_keyblock );
static void menu_delkey( KBNODE pub_keyblock, KBNODE sec_keyblock );
static int menu_expire( KBNODE pub_keyblock, KBNODE sec_keyblock );
static int menu_set_primary_uid( KBNODE pub_keyblock, KBNODE sec_keyblock );
static int menu_set_preferences( KBNODE pub_keyblock, KBNODE sec_keyblock );
static int menu_select_uid( KBNODE keyblock, int idx );
static int menu_select_key( KBNODE keyblock, int idx );
static int count_uids( KBNODE keyblock );
static int count_uids_with_flag( KBNODE keyblock, unsigned flag );
static int count_keys_with_flag( KBNODE keyblock, unsigned flag );
static int count_selected_uids( KBNODE keyblock );
static int count_selected_keys( KBNODE keyblock );
static int menu_revsig( KBNODE keyblock );
static int menu_revkey( KBNODE pub_keyblock, KBNODE sec_keyblock );
static int enable_disable_key( KBNODE keyblock, int disable );
#define CONTROL_D ('D' - 'A' + 1)
#define NODFLG_BADSIG (1<<0) /* bad signature */
#define NODFLG_NOKEY (1<<1) /* no public key */
#define NODFLG_SIGERR (1<<2) /* other sig error */
#define NODFLG_MARK_A (1<<4) /* temporary mark */
#define NODFLG_SELUID (1<<8) /* indicate the selected userid */
#define NODFLG_SELKEY (1<<9) /* indicate the selected key */
#define NODFLG_SELSIG (1<<10) /* indicate a selected signature */
struct sign_attrib {
int non_exportable;
struct revocation_reason_info *reason;
};
static int
get_keyblock_byname( KBNODE *keyblock, KBPOS *kbpos, const char *username )
{
int rc;
*keyblock = NULL;
/* search the userid */
rc = find_keyblock_byname( kbpos, username );
if( rc ) {
log_error(_("%s: user not found\n"), username );
return rc;
}
/* read the keyblock */
rc = read_keyblock( kbpos, keyblock );
if( rc )
log_error("%s: keyblock read problem: %s\n", username, g10_errstr(rc));
else
merge_keys_and_selfsig( *keyblock );
return rc;
}
/****************
* Print information about a signature, check it and return true
* if the signature is okay. NODE must be a signature packet.
*/
static int
print_and_check_one_sig( KBNODE keyblock, KBNODE node,
int *inv_sigs, int *no_key, int *oth_err,
int *is_selfsig, int print_without_key )
{
PKT_signature *sig = node->pkt->pkt.signature;
int rc, sigrc;
int is_rev = sig->sig_class == 0x30;
switch( (rc = check_key_signature( keyblock, node, is_selfsig)) ) {
case 0:
node->flag &= ~(NODFLG_BADSIG|NODFLG_NOKEY|NODFLG_SIGERR);
sigrc = '!';
break;
case G10ERR_BAD_SIGN:
node->flag = NODFLG_BADSIG;
sigrc = '-';
if( inv_sigs )
++*inv_sigs;
break;
case G10ERR_NO_PUBKEY:
case G10ERR_UNU_PUBKEY:
node->flag = NODFLG_NOKEY;
sigrc = '?';
if( no_key )
++*no_key;
break;
default:
node->flag = NODFLG_SIGERR;
sigrc = '%';
if( oth_err )
++*oth_err;
break;
}
if( sigrc != '?' || print_without_key ) {
tty_printf("%s%c %08lX %s ",
is_rev? "rev":"sig",
sigrc, (ulong)sig->keyid[1], datestr_from_sig(sig));
if( sigrc == '%' )
tty_printf("[%s] ", g10_errstr(rc) );
else if( sigrc == '?' )
;
else if( *is_selfsig ) {
tty_printf( is_rev? _("[revocation]")
: _("[self-signature]") );
}
else {
size_t n;
char *p = get_user_id( sig->keyid, &n );
tty_print_utf8_string2( p, n, 40 );
m_free(p);
}
tty_printf("\n");
}
return (sigrc == '!');
}
/****************
* Check the keysigs and set the flags to indicate errors.
* Returns true if error found.
*/
static int
check_all_keysigs( KBNODE keyblock, int only_selected )
{
KBNODE kbctx;
KBNODE node;
int inv_sigs = 0;
int no_key = 0;
int oth_err = 0;
int has_selfsig = 0;
int mis_selfsig = 0;
int selected = !only_selected;
int anyuid = 0;
for( kbctx=NULL; (node=walk_kbnode( keyblock, &kbctx, 0)) ; ) {
if( node->pkt->pkttype == PKT_USER_ID ) {
PKT_user_id *uid = node->pkt->pkt.user_id;
if( only_selected )
selected = (node->flag & NODFLG_SELUID);
if( selected ) {
tty_printf("uid ");
tty_print_utf8_string( uid->name, uid->len );
tty_printf("\n");
if( anyuid && !has_selfsig )
mis_selfsig++;
has_selfsig = 0;
anyuid = 1;
}
}
else if( selected && node->pkt->pkttype == PKT_SIGNATURE
&& ( (node->pkt->pkt.signature->sig_class&~3) == 0x10
|| node->pkt->pkt.signature->sig_class == 0x30 ) ) {
int selfsig;
if( print_and_check_one_sig( keyblock, node, &inv_sigs,
&no_key, &oth_err, &selfsig, 0 ) ) {
if( selfsig )
has_selfsig = 1;
}
/* Hmmm: should we update the trustdb here? */
}
}
if( !has_selfsig )
mis_selfsig++;
if( inv_sigs == 1 )
tty_printf(_("1 bad signature\n") );
else if( inv_sigs )
tty_printf(_("%d bad signatures\n"), inv_sigs );
if( no_key == 1 )
tty_printf(_("1 signature not checked due to a missing key\n") );
else if( no_key )
tty_printf(_("%d signatures not checked due to missing keys\n"), no_key );
if( oth_err == 1 )
tty_printf(_("1 signature not checked due to an error\n") );
else if( oth_err )
tty_printf(_("%d signatures not checked due to errors\n"), oth_err );
if( mis_selfsig == 1 )
tty_printf(_("1 user ID without valid self-signature detected\n"));
else if( mis_selfsig )
tty_printf(_("%d user IDs without valid self-signatures detected\n"),
mis_selfsig);
return inv_sigs || no_key || oth_err || mis_selfsig;
}
static int
sign_mk_attrib( PKT_signature *sig, void *opaque )
{
struct sign_attrib *attrib = opaque;
byte buf[8];
if( attrib->non_exportable ) {
buf[0] = 0; /* not exportable */
build_sig_subpkt( sig, SIGSUBPKT_EXPORTABLE, buf, 1 );
}
if( attrib->reason )
revocation_reason_build_cb( sig, attrib->reason );
return 0;
}
/****************
* Loop over all locusr and and sign the uids after asking.
* If no user id is marked, all user ids will be signed;
* if some user_ids are marked those will be signed.
*/
static int
sign_uids( KBNODE keyblock, STRLIST locusr, int *ret_modified, int local )
{
int rc = 0;
SK_LIST sk_list = NULL;
SK_LIST sk_rover = NULL;
PKT_secret_key *sk = NULL;
KBNODE node, uidnode;
PKT_public_key *primary_pk=NULL;
int select_all = !count_selected_uids(keyblock);
int upd_trust = 0;
/* build a list of all signators */
rc=build_sk_list( locusr, &sk_list, 0, 1 );
if( rc )
goto leave;
/* loop over all signaturs */
for( sk_rover = sk_list; sk_rover; sk_rover = sk_rover->next ) {
u32 sk_keyid[2];
size_t n;
char *p;
/* we have to use a copy of the sk, because make_keysig_packet
* may remove the protection from sk and if we did other
* changes to the secret key, we would save the unprotected
* version */
if( sk )
free_secret_key(sk);
sk = copy_secret_key( NULL, sk_rover->sk );
keyid_from_sk( sk, sk_keyid );
/* set mark A for all selected user ids */
for( node=keyblock; node; node = node->next ) {
if( select_all || (node->flag & NODFLG_SELUID) )
node->flag |= NODFLG_MARK_A;
else
node->flag &= ~NODFLG_MARK_A;
}
/* reset mark for uids which are already signed */
uidnode = NULL;
for( node=keyblock; node; node = node->next ) {
if( node->pkt->pkttype == PKT_USER_ID ) {
uidnode = (node->flag & NODFLG_MARK_A)? node : NULL;
}
else if( uidnode && node->pkt->pkttype == PKT_SIGNATURE
&& (node->pkt->pkt.signature->sig_class&~3) == 0x10 ) {
if( sk_keyid[0] == node->pkt->pkt.signature->keyid[0]
&& sk_keyid[1] == node->pkt->pkt.signature->keyid[1] ) {
/* Fixme: see whether there is a revocation in which
* case we should allow to sign it again. */
tty_printf(_("Already signed by key %08lX\n"),
(ulong)sk_keyid[1] );
uidnode->flag &= ~NODFLG_MARK_A; /* remove mark */
}
}
}
/* check whether any uids are left for signing */
if( !count_uids_with_flag(keyblock, NODFLG_MARK_A) ) {
tty_printf(_("Nothing to sign with key %08lX\n"),
(ulong)sk_keyid[1] );
continue;
}
/* Ask whether we really should sign these user id(s) */
tty_printf("\n");
show_key_with_all_names( keyblock, 1, 1, 0, 0 );
tty_printf("\n");
tty_printf(_(
"Are you really sure that you want to sign this key\n"
"with your key: \""));
p = get_user_id( sk_keyid, &n );
tty_print_utf8_string( p, n );
m_free(p); p = NULL;
tty_printf("\"\n\n");
if( local )
tty_printf(
_("The signature will be marked as non-exportable.\n\n"));
if( opt.batch && opt.answer_yes )
;
else if( !cpr_get_answer_is_yes("sign_uid.okay", _("Really sign? ")) )
continue;
/* now we can sign the user ids */
reloop: /* (must use this, because we are modifing the list) */
primary_pk = NULL;
for( node=keyblock; node; node = node->next ) {
if( node->pkt->pkttype == PKT_PUBLIC_KEY )
primary_pk = node->pkt->pkt.public_key;
else if( node->pkt->pkttype == PKT_USER_ID
&& (node->flag & NODFLG_MARK_A) ) {
PACKET *pkt;
PKT_signature *sig;
struct sign_attrib attrib;
assert( primary_pk );
memset( &attrib, 0, sizeof attrib );
attrib.non_exportable = local;
node->flag &= ~NODFLG_MARK_A;
/* we force createion of a v4 signature for local
* signatures, otherwise we would not generate the
* subpacket with v3 keys and the signature becomes
* exportable */
rc = make_keysig_packet( &sig, primary_pk,
node->pkt->pkt.user_id,
NULL,
sk,
0x10, 0, local?4:0,
sign_mk_attrib,
&attrib );
if( rc ) {
log_error(_("signing failed: %s\n"), g10_errstr(rc));
goto leave;
}
*ret_modified = 1; /* we changed the keyblock */
upd_trust = 1;
pkt = m_alloc_clear( sizeof *pkt );
pkt->pkttype = PKT_SIGNATURE;
pkt->pkt.signature = sig;
insert_kbnode( node, new_kbnode(pkt), PKT_SIGNATURE );
goto reloop;
}
}
} /* end loop over signators */
if( upd_trust && primary_pk ) {
rc = clear_trust_checked_flag( primary_pk );
}
leave:
release_sk_list( sk_list );
if( sk )
free_secret_key(sk);
return rc;
}
/****************
* Change the passphrase of the primary and all secondary keys.
* We use only one passphrase for all keys.
*/
static int
change_passphrase( KBNODE keyblock )
{
int rc = 0;
int changed=0;
KBNODE node;
PKT_secret_key *sk;
char *passphrase = NULL;
int no_primary_secrets = 0;
node = find_kbnode( keyblock, PKT_SECRET_KEY );
if( !node ) {
log_error("Oops; secret key not found anymore!\n");
goto leave;
}
sk = node->pkt->pkt.secret_key;
switch( is_secret_key_protected( sk ) ) {
case -1:
rc = G10ERR_PUBKEY_ALGO;
break;
case 0:
tty_printf(_("This key is not protected.\n"));
break;
default:
if( sk->protect.s2k.mode == 1001 ) {
tty_printf(_("Secret parts of primary key are not available.\n"));
no_primary_secrets = 1;
}
else {
tty_printf(_("Key is protected.\n"));
rc = check_secret_key( sk, 0 );
if( !rc )
passphrase = get_last_passphrase();
}
break;
}
/* unprotect all subkeys (use the supplied passphrase or ask)*/
for(node=keyblock; !rc && node; node = node->next ) {
if( node->pkt->pkttype == PKT_SECRET_SUBKEY ) {
PKT_secret_key *subsk = node->pkt->pkt.secret_key;
set_next_passphrase( passphrase );
rc = check_secret_key( subsk, 0 );
if( !rc && !passphrase )
passphrase = get_last_passphrase();
}
}
if( rc )
tty_printf(_("Can't edit this key: %s\n"), g10_errstr(rc));
else {
DEK *dek = NULL;
STRING2KEY *s2k = m_alloc_secure( sizeof *s2k );
tty_printf(_("Enter the new passphrase for this secret key.\n\n") );
set_next_passphrase( NULL );
for(;;) {
s2k->mode = opt.s2k_mode;
s2k->hash_algo = opt.s2k_digest_algo;
dek = passphrase_to_dek( NULL, 0, opt.s2k_cipher_algo, s2k, 2 );
if( !dek ) {
tty_printf(_("passphrase not correctly repeated; try again.\n"));
}
else if( !dek->keylen ) {
rc = 0;
tty_printf(_( "You don't want a passphrase -"
" this is probably a *bad* idea!\n\n"));
if( cpr_get_answer_is_yes("change_passwd.empty.okay",
_("Do you really want to do this? ")))
changed++;
break;
}
else { /* okay */
rc = 0;
if( !no_primary_secrets ) {
sk->protect.algo = dek->algo;
sk->protect.s2k = *s2k;
rc = protect_secret_key( sk, dek );
}
for(node=keyblock; !rc && node; node = node->next ) {
if( node->pkt->pkttype == PKT_SECRET_SUBKEY ) {
PKT_secret_key *subsk = node->pkt->pkt.secret_key;
subsk->protect.algo = dek->algo;
subsk->protect.s2k = *s2k;
rc = protect_secret_key( subsk, dek );
}
}
if( rc )
log_error("protect_secret_key failed: %s\n", g10_errstr(rc) );
else
changed++;
break;
}
}
m_free(s2k);
m_free(dek);
}
leave:
m_free( passphrase );
set_next_passphrase( NULL );
return changed && !rc;
}
/****************
* There are some keys out (due to a bug in gnupg), where the sequence
* of the packets is wrong. This function fixes that.
* Returns: true if the keyblock has been fixed.
*
* Note: This function does not work if there is more than one user ID.
*/
static int
fix_keyblock( KBNODE keyblock )
{
KBNODE node, last, subkey;
int fixed=0;
/* locate key signatures of class 0x10..0x13 behind sub key packets */
for( subkey=last=NULL, node = keyblock; node;
last=node, node = node->next ) {
switch( node->pkt->pkttype ) {
case PKT_PUBLIC_SUBKEY:
case PKT_SECRET_SUBKEY:
if( !subkey )
subkey = last; /* actually it is the one before the subkey */
break;
case PKT_SIGNATURE:
if( subkey ) {
PKT_signature *sig = node->pkt->pkt.signature;
if( sig->sig_class >= 0x10 && sig->sig_class <= 0x13 ) {
log_info(_(
"moving a key signature to the correct place\n"));
last->next = node->next;
node->next = subkey->next;
subkey->next = node;
node = last;
fixed=1;
}
}
break;
default: break;
}
}
return fixed;
}
/****************
* Menu driven key editor. If sign_mode is true semi-automatical signing
* will be performed. commands are ignore in this case
*
* Note: to keep track of some selection we use node->mark MARKBIT_xxxx.
*/
void
keyedit_menu( const char *username, STRLIST locusr, STRLIST commands,
int sign_mode )
{
enum cmdids { cmdNONE = 0,
cmdQUIT, cmdHELP, cmdFPR, cmdLIST, cmdSELUID, cmdCHECK, cmdSIGN,
cmdLSIGN, cmdREVSIG, cmdREVKEY, cmdDELSIG, cmdPRIMARY,
cmdDEBUG, cmdSAVE, cmdADDUID, cmdDELUID, cmdADDKEY, cmdDELKEY,
cmdTOGGLE, cmdSELKEY, cmdPASSWD, cmdTRUST, cmdPREF, cmdEXPIRE,
cmdENABLEKEY, cmdDISABLEKEY, cmdSHOWPREF, cmdSETPREF, cmdUPDPREF,
cmdINVCMD, cmdNOP };
static struct { const char *name;
enum cmdids id;
int need_sk;
int not_with_sk;
int signmode;
const char *desc;
} cmds[] = {
{ N_("quit") , cmdQUIT , 0,0,1, N_("quit this menu") },
{ N_("q") , cmdQUIT , 0,0,1, NULL },
{ N_("save") , cmdSAVE , 0,0,1, N_("save and quit") },
{ N_("help") , cmdHELP , 0,0,1, N_("show this help") },
{ "?" , cmdHELP , 0,0,1, NULL },
{ N_("fpr") , cmdFPR , 0,0,1, N_("show fingerprint") },
{ N_("list") , cmdLIST , 0,0,1, N_("list key and user IDs") },
{ N_("l") , cmdLIST , 0,0,1, NULL },
{ N_("uid") , cmdSELUID , 0,0,1, N_("select user ID N") },
{ N_("key") , cmdSELKEY , 0,0,0, N_("select secondary key N") },
{ N_("check") , cmdCHECK , 0,0,1, N_("list signatures") },
{ N_("c") , cmdCHECK , 0,0,1, NULL },
{ N_("sign") , cmdSIGN , 0,1,1, N_("sign the key") },
{ N_("s") , cmdSIGN , 0,1,1, NULL },
{ N_("lsign") , cmdLSIGN , 0,1,1, N_("sign the key locally") },
{ N_("debug") , cmdDEBUG , 0,0,0, NULL },
{ N_("adduid") , cmdADDUID , 1,1,0, N_("add a user ID") },
{ N_("deluid") , cmdDELUID , 0,1,0, N_("delete user ID") },
{ N_("addkey") , cmdADDKEY , 1,1,0, N_("add a secondary key") },
{ N_("delkey") , cmdDELKEY , 0,1,0, N_("delete a secondary key") },
{ N_("delsig") , cmdDELSIG , 0,1,0, N_("delete signatures") },
{ N_("expire") , cmdEXPIRE , 1,1,0, N_("change the expire date") },
{ N_("primary") , cmdPRIMARY , 1,1,0, N_("flag user ID as primary")},
{ N_("toggle") , cmdTOGGLE , 1,0,0, N_("toggle between secret "
"and public key listing") },
{ N_("t" ) , cmdTOGGLE , 1,0,0, NULL },
{ N_("pref") , cmdPREF , 0,1,0, N_("list preferences") },
{ N_("showpref"), cmdSHOWPREF , 0,1,0, N_("list preferences") },
{ N_("setpref") , cmdSETPREF , 1,1,0, N_("set preference list") },
{ N_("updpref") , cmdUPDPREF , 1,1,0, N_("updated preferences") },
{ N_("passwd") , cmdPASSWD , 1,1,0, N_("change the passphrase") },
{ N_("trust") , cmdTRUST , 0,1,0, N_("change the ownertrust") },
{ N_("revsig") , cmdREVSIG , 0,1,0, N_("revoke signatures") },
{ N_("revkey") , cmdREVKEY , 1,1,0, N_("revoke a secondary key") },
{ N_("disable") , cmdDISABLEKEY, 0,1,0, N_("disable a key") },
{ N_("enable") , cmdENABLEKEY , 0,1,0, N_("enable a key") },
{ NULL, cmdNONE } };
enum cmdids cmd = 0;
int rc = 0;
KBNODE keyblock = NULL;
KBPOS keyblockpos;
KBNODE sec_keyblock = NULL;
KBPOS sec_keyblockpos;
KBNODE cur_keyblock;
char *answer = NULL;
int redisplay = 1;
int modified = 0;
int sec_modified = 0;
int toggle;
int have_commands = !!commands;
if ( opt.command_fd != -1 )
;
else if( opt.batch && !have_commands ) {
log_error(_("can't do that in batchmode\n"));
goto leave;
}
if( sign_mode ) {
commands = NULL;
append_to_strlist( &commands, sign_mode == 1? "sign":"lsign" );
have_commands = 1;
}
if( !sign_mode ) {
/* first try to locate it as secret key */
rc = find_secret_keyblock_byname( &sec_keyblockpos, username );
if( !rc ) {
rc = read_keyblock( &sec_keyblockpos, &sec_keyblock );
if( rc ) {
log_error("%s: secret keyblock read problem: %s\n",
username, g10_errstr(rc));
goto leave;
}
merge_keys_and_selfsig( sec_keyblock );
if( fix_keyblock( sec_keyblock ) )
sec_modified++;
}
}
/* and now get the public key */
rc = get_keyblock_byname( &keyblock, &keyblockpos, username );
if( rc )
goto leave;
if( fix_keyblock( keyblock ) )
modified++;
if( collapse_uids( &keyblock ) )
modified++;
if( sec_keyblock ) { /* check that they match */
/* fixme: check that they both match */
tty_printf(_("Secret key is available.\n"));
}
toggle = 0;
cur_keyblock = keyblock;
for(;;) { /* main loop */
int i, arg_number;
const char *arg_string = "";
char *p;
tty_printf("\n");
if( redisplay ) {
show_key_with_all_names( cur_keyblock, 0, 0, 1, 0 );
tty_printf("\n");
redisplay = 0;
}
do {
m_free(answer);
if( have_commands ) {
if( commands ) {
answer = m_strdup( commands->d );
commands = commands->next;
}
else if( opt.batch ) {
answer = m_strdup("quit");
}
else
have_commands = 0;
}
if( !have_commands ) {
answer = cpr_get_no_help("keyedit.prompt", _("Command> "));
cpr_kill_prompt();
}
trim_spaces(answer);
} while( *answer == '#' );
arg_number = 0; /* Yes, here is the init which egcc complains about*/
if( !*answer )
cmd = cmdLIST;
else if( *answer == CONTROL_D )
cmd = cmdQUIT;
else if( isdigit( *answer ) ) {
cmd = cmdSELUID;
arg_number = atoi(answer);
}
else {
if( (p=strchr(answer,' ')) ) {
*p++ = 0;
trim_spaces(answer);
trim_spaces(p);
arg_number = atoi(p);
arg_string = p;
}
for(i=0; cmds[i].name; i++ ) {
if( !ascii_strcasecmp( answer, cmds[i].name ) )
break;
}
if( sign_mode && !cmds[i].signmode )
cmd = cmdINVCMD;
else if( cmds[i].need_sk && !sec_keyblock ) {
tty_printf(_("Need the secret key to do this.\n"));
cmd = cmdNOP;
}
else if( cmds[i].not_with_sk && sec_keyblock && toggle ) {
tty_printf(_("Please use the command \"toggle\" first.\n"));
cmd = cmdNOP;
}
else
cmd = cmds[i].id;
}
switch( cmd ) {
case cmdHELP:
for(i=0; cmds[i].name; i++ ) {
if( sign_mode && !cmds[i].signmode )
;
else if( cmds[i].need_sk && !sec_keyblock )
; /* skip if we do not have the secret key */
else if( cmds[i].desc )
tty_printf("%-10s %s\n", cmds[i].name, _(cmds[i].desc) );
}
break;
case cmdLIST:
redisplay = 1;
break;
case cmdFPR:
show_key_and_fingerprint( keyblock );
break;
case cmdSELUID:
if( menu_select_uid( cur_keyblock, arg_number ) )
redisplay = 1;
break;
case cmdSELKEY:
if( menu_select_key( cur_keyblock, arg_number ) )
redisplay = 1;
break;
case cmdCHECK:
/* we can only do this with the public key becuase the
* check functions can't cope with secret keys and it
* is questionable whether this would make sense at all */
check_all_keysigs( keyblock, count_selected_uids(keyblock) );
break;
case cmdSIGN: /* sign (only the public key) */
case cmdLSIGN: /* sign (only the public key) */
if( count_uids(keyblock) > 1 && !count_selected_uids(keyblock) ) {
if( !cpr_get_answer_is_yes("keyedit.sign_all.okay",
_("Really sign all user IDs? ")) ) {
tty_printf(_("Hint: Select the user IDs to sign\n"));
break;
}
}
if( !sign_uids( keyblock, locusr, &modified, cmd == cmdLSIGN )
&& sign_mode )
goto do_cmd_save;
/* Actually we should do a update_trust_record() here so that
* the trust gets displayed correctly. however this is not possible
* because we would have to save the keyblock first - something
* we don't want to do without an explicit save command.
*/
break;
case cmdDEBUG:
dump_kbnode( cur_keyblock );
break;
case cmdTOGGLE:
toggle = !toggle;
cur_keyblock = toggle? sec_keyblock : keyblock;
redisplay = 1;
break;
case cmdADDUID:
if( menu_adduid( keyblock, sec_keyblock ) ) {
redisplay = 1;
sec_modified = modified = 1;
/* must update the trustdb already here, so that preferences
* get listed correctly */
rc = update_trust_record( keyblock, 0, NULL );
if( rc ) {
log_error(_("update of trustdb failed: %s\n"),
g10_errstr(rc) );
rc = 0;
}
}
break;
case cmdDELUID: {
int n1;
if( !(n1=count_selected_uids(keyblock)) )
tty_printf(_("You must select at least one user ID.\n"));
else if( count_uids(keyblock) - n1 < 1 )
tty_printf(_("You can't delete the last user ID!\n"));
else if( cpr_get_answer_is_yes(
"keyedit.remove.uid.okay",
n1 > 1? _("Really remove all selected user IDs? ")
: _("Really remove this user ID? ")
) ) {
menu_deluid( keyblock, sec_keyblock );
redisplay = 1;
modified = 1;
if( sec_keyblock )
sec_modified = 1;
}
}
break;
case cmdDELSIG: {
int n1;
if( !(n1=count_selected_uids(keyblock)) )
tty_printf(_("You must select at least one user ID.\n"));
else if( menu_delsig( keyblock ) ) {
/* no redisplay here, because it may scroll away some
* status output of delsig */
modified = 1;
}
}
break;
case cmdADDKEY:
if( generate_subkeypair( keyblock, sec_keyblock ) ) {
redisplay = 1;
sec_modified = modified = 1;
}
break;
case cmdDELKEY: {
int n1;
if( !(n1=count_selected_keys( keyblock )) )
tty_printf(_("You must select at least one key.\n"));
else if( sec_keyblock && !cpr_get_answer_is_yes(
"keyedit.remove.subkey.okay",
n1 > 1?
_("Do you really want to delete the selected keys? "):
_("Do you really want to delete this key? ")
))
;
else {
menu_delkey( keyblock, sec_keyblock );
redisplay = 1;
modified = 1;
if( sec_keyblock )
sec_modified = 1;
}
}
break;
case cmdREVKEY: {
int n1;
if( !(n1=count_selected_keys( keyblock )) )
tty_printf(_("You must select at least one key.\n"));
else if( sec_keyblock && !cpr_get_answer_is_yes(
"keyedit.revoke.subkey.okay",
n1 > 1?
_("Do you really want to revoke the selected keys? "):
_("Do you really want to revoke this key? ")
))
;
else {
if( menu_revkey( keyblock, sec_keyblock ) ) {
modified = 1;
/*sec_modified = 1;*/
}
redisplay = 1;
}
}
break;
case cmdEXPIRE:
if( menu_expire( keyblock, sec_keyblock ) ) {
merge_keys_and_selfsig( sec_keyblock );
merge_keys_and_selfsig( keyblock );
sec_modified = 1;
modified = 1;
redisplay = 1;
}
break;
case cmdPRIMARY:
if( menu_set_primary_uid ( keyblock, sec_keyblock ) ) {
merge_keys_and_selfsig( keyblock );
modified = 1;
redisplay = 1;
}
break;
case cmdPASSWD:
if( change_passphrase( sec_keyblock ) )
sec_modified = 1;
break;
case cmdTRUST:
show_key_with_all_names( keyblock, 0, 0, 1, 0 );
tty_printf("\n");
if( edit_ownertrust( find_kbnode( keyblock,
PKT_PUBLIC_KEY )->pkt->pkt.public_key->local_id, 1 ) )
redisplay = 1;
/* we don't need to set modified here, as the trustvalues
* are updated immediately */
break;
case cmdPREF:
show_key_with_all_names( keyblock, 0, 0, 0, 1 );
break;
case cmdSHOWPREF:
show_key_with_all_names( keyblock, 0, 0, 0, 2 );
break;
case cmdSETPREF:
keygen_set_std_prefs ( !*arg_string? "default" : arg_string );
break;
case cmdUPDPREF:
{
char *p = keygen_get_std_prefs ();
tty_printf (("Current preference list: %s\n"), p);
m_free (p);
}
if (cpr_get_answer_is_yes ("keyedit.updpref.okay",
count_selected_uids (keyblock)?
_("Really update the preferences"
" for the selected user IDs? "):
_("Really update the preferences? "))){
if ( menu_set_preferences (keyblock, sec_keyblock) ) {
update_trust_record (keyblock, 0, NULL);
merge_keys_and_selfsig (keyblock);
modified = 1;
redisplay = 1;
}
}
break;
case cmdNOP:
break;
case cmdREVSIG:
if( menu_revsig( keyblock ) ) {
redisplay = 1;
modified = 1;
}
break;
case cmdENABLEKEY:
case cmdDISABLEKEY:
if( enable_disable_key( keyblock, cmd == cmdDISABLEKEY ) ) {
redisplay = 1;
modified = 1;
}
break;
case cmdQUIT:
if( have_commands )
goto leave;
if( !modified && !sec_modified )
goto leave;
if( !cpr_get_answer_is_yes("keyedit.save.okay",
_("Save changes? ")) ) {
if( cpr_enabled()
|| cpr_get_answer_is_yes("keyedit.cancel.okay",
_("Quit without saving? ")) )
goto leave;
break;
}
/* fall thru */
case cmdSAVE:
do_cmd_save:
if( modified || sec_modified ) {
if( modified ) {
rc = update_keyblock( &keyblockpos, keyblock );
if( rc ) {
log_error(_("update failed: %s\n"), g10_errstr(rc) );
break;
}
}
if( sec_modified ) {
rc = update_keyblock( &sec_keyblockpos, sec_keyblock );
if( rc ) {
log_error(_("update secret failed: %s\n"),
g10_errstr(rc) );
break;
}
}
}
else
tty_printf(_("Key not changed so no update needed.\n"));
/* TODO: we should keep track whether we have changed
* something relevant to the trustdb */
if( !modified && sign_mode )
rc = 0; /* we can skip at least in this case */
else
rc = update_trust_record( keyblock, 0, NULL );
if( rc )
log_error(_("update of trustdb failed: %s\n"),
g10_errstr(rc) );
goto leave;
case cmdINVCMD:
default:
tty_printf("\n");
tty_printf(_("Invalid command (try \"help\")\n"));
break;
}
} /* end main loop */
leave:
release_kbnode( keyblock );
release_kbnode( sec_keyblock );
m_free(answer);
}
/****************
* show preferences of a public keyblock.
*/
static void
show_prefs( KBNODE keyblock, PKT_user_id *uid, int verbose )
{
KBNODE node = find_kbnode( keyblock, PKT_PUBLIC_KEY );
PKT_public_key *pk;
byte *p;
int i;
size_t n;
byte namehash[20];
if( !node )
return; /* is a secret keyblock */
pk = node->pkt->pkt.public_key;
if( !pk->local_id ) {
log_error("oops: no LID\n");
return;
}
if( uid->photo )
rmd160_hash_buffer( namehash, uid->photo, uid->photolen );
else
rmd160_hash_buffer( namehash, uid->name, uid->len );
p = get_pref_data( pk->local_id, namehash, &n );
if( !p )
return;
if (verbose) {
int any, des_seen=0;
tty_printf (" Cipher: ");
for(i=any=0; i < n; i+=2 ) {
if( p[i] == PREFTYPE_SYM ) {
const char *s = cipher_algo_to_string (p[i+1]);
if (any)
tty_printf (", ");
any = 1;
/* We don't want to display strings for experimental algos */
if (s && p[i+1] < 100 )
tty_printf ("%s", s );
else
tty_printf ("[%d]", p[i+1]);
if (p[i+1] == CIPHER_ALGO_3DES )
des_seen = 1;
}
}
if (!des_seen) {
if (any)
tty_printf (", ");
tty_printf ("3DES");
}
tty_printf ("\n Hash: ");
for(i=any=0; i < n; i+=2 ) {
if( p[i] == PREFTYPE_HASH ) {
const char *s = digest_algo_to_string (p[i+1]);
if (any)
tty_printf (", ");
any = 1;
/* We don't want to display strings for experimental algos */
if (s && p[i+1] < 100 )
tty_printf ("%s", s );
else
tty_printf ("[%d]", p[i+1]);
}
}
tty_printf("\n");
}
else {
tty_printf(" ");
for(i=0; i < n; i+=2 ) {
if( p[i] )
tty_printf( " %c%d", p[i] == PREFTYPE_SYM ? 'S' :
p[i] == PREFTYPE_HASH ? 'H' :
p[i] == PREFTYPE_COMPR ? 'Z':'?', p[i+1]);
}
tty_printf("\n");
}
m_free(p);
}
/****************
* Display the key a the user ids, if only_marked is true, do only
* so for user ids with mark A flag set and dont display the index number
*/
static void
show_key_with_all_names( KBNODE keyblock, int only_marked,
int with_fpr, int with_subkeys, int with_prefs )
{
KBNODE node;
int i, rc;
/* the keys */
for( node = keyblock; node; node = node->next ) {
if( node->pkt->pkttype == PKT_PUBLIC_KEY
|| (with_subkeys && node->pkt->pkttype == PKT_PUBLIC_SUBKEY) ) {
PKT_public_key *pk = node->pkt->pkt.public_key;
int otrust=0, trust=0;
if( node->pkt->pkttype == PKT_PUBLIC_KEY ) {
/* do it here, so that debug messages don't clutter the
* output */
trust = query_trust_info(pk, NULL);
otrust = get_ownertrust_info( pk->local_id );
}
tty_printf(_("%s%c %4u%c/%08lX created: %s expires: %s"),
node->pkt->pkttype == PKT_PUBLIC_KEY? "pub":"sub",
(node->flag & NODFLG_SELKEY)? '*':' ',
nbits_from_pk( pk ),
pubkey_letter( pk->pubkey_algo ),
(ulong)keyid_from_pk(pk,NULL),
datestr_from_pk(pk),
expirestr_from_pk(pk) );
if( node->pkt->pkttype == PKT_PUBLIC_KEY ) {
tty_printf(_(" trust: %c/%c"), otrust, trust );
if( node->pkt->pkttype == PKT_PUBLIC_KEY
&& (get_ownertrust( pk->local_id )&TRUST_FLAG_DISABLED)) {
tty_printf("\n*** ");
tty_printf(_("This key has been disabled"));
}
if( with_fpr ) {
tty_printf("\n");
show_fingerprint( pk );
}
}
tty_printf("\n");
}
else if( node->pkt->pkttype == PKT_SECRET_KEY
|| (with_subkeys && node->pkt->pkttype == PKT_SECRET_SUBKEY) ) {
PKT_secret_key *sk = node->pkt->pkt.secret_key;
tty_printf(_("%s%c %4u%c/%08lX created: %s expires: %s"),
node->pkt->pkttype == PKT_SECRET_KEY? "sec":"ssb",
(node->flag & NODFLG_SELKEY)? '*':' ',
nbits_from_sk( sk ),
pubkey_letter( sk->pubkey_algo ),
(ulong)keyid_from_sk(sk,NULL),
datestr_from_sk(sk),
expirestr_from_sk(sk) );
tty_printf("\n");
}
else if( with_subkeys && node->pkt->pkttype == PKT_SIGNATURE
&& node->pkt->pkt.signature->sig_class == 0x28 ) {
PKT_signature *sig = node->pkt->pkt.signature;
rc = check_key_signature( keyblock, node, NULL );
if( !rc )
tty_printf( _("rev! subkey has been revoked: %s\n"),
datestr_from_sig( sig ) );
else if( rc == G10ERR_BAD_SIGN )
tty_printf( _("rev- faked revocation found\n") );
else if( rc )
tty_printf( _("rev? problem checking revocation: %s\n"),
g10_errstr(rc) );
}
}
/* the user ids */
i = 0;
for( node = keyblock; node; node = node->next ) {
if( node->pkt->pkttype == PKT_USER_ID ) {
PKT_user_id *uid = node->pkt->pkt.user_id;
++i;
if( !only_marked || (only_marked && (node->flag & NODFLG_MARK_A))){
if( only_marked )
tty_printf(" ");
else if( node->flag & NODFLG_SELUID )
tty_printf("(%d)* ", i);
else if( uid->is_primary )
tty_printf("(%d). ", i);
else
tty_printf("(%d) ", i);
if ( uid->is_revoked )
tty_printf ("[revoked] ");
tty_print_utf8_string( uid->name, uid->len );
tty_printf("\n");
if( with_prefs )
show_prefs( keyblock, uid, with_prefs == 2 );
}
}
}
}
static void
show_key_and_fingerprint( KBNODE keyblock )
{
KBNODE node;
PKT_public_key *pk = NULL;
for( node = keyblock; node; node = node->next ) {
if( node->pkt->pkttype == PKT_PUBLIC_KEY ) {
pk = node->pkt->pkt.public_key;
tty_printf("pub %4u%c/%08lX %s ",
nbits_from_pk( pk ),
pubkey_letter( pk->pubkey_algo ),
(ulong)keyid_from_pk(pk,NULL),
datestr_from_pk(pk) );
}
else if( node->pkt->pkttype == PKT_USER_ID ) {
PKT_user_id *uid = node->pkt->pkt.user_id;
tty_print_utf8_string( uid->name, uid->len );
break;
}
}
tty_printf("\n");
if( pk )
show_fingerprint( pk );
}
static void
show_fingerprint( PKT_public_key *pk )
{
byte array[MAX_FINGERPRINT_LEN], *p;
size_t i, n;
fingerprint_from_pk( pk, array, &n );
p = array;
tty_printf(_(" Fingerprint:"));
if( n == 20 ) {
for(i=0; i < n ; i++, i++, p += 2 ) {
if( i == 10 )
tty_printf(" ");
tty_printf(" %02X%02X", *p, p[1] );
}
}
else {
for(i=0; i < n ; i++, p++ ) {
if( i && !(i%8) )
tty_printf(" ");
tty_printf(" %02X", *p );
}
}
tty_printf("\n");
}
/****************
* Ask for a new user id , do the selfsignature and put it into
* both keyblocks.
* Return true if there is a new user id
*/
static int
menu_adduid( KBNODE pub_keyblock, KBNODE sec_keyblock )
{
PKT_user_id *uid;
PKT_public_key *pk=NULL;
PKT_secret_key *sk=NULL;
PKT_signature *sig=NULL;
PACKET *pkt;
KBNODE node;
KBNODE pub_where=NULL, sec_where=NULL;
int rc;
uid = generate_user_id();
if( !uid )
return 0;
for( node = pub_keyblock; node; pub_where = node, node = node->next ) {
if( node->pkt->pkttype == PKT_PUBLIC_KEY )
pk = node->pkt->pkt.public_key;
else if( node->pkt->pkttype == PKT_PUBLIC_SUBKEY )
break;
}
if( !node ) /* no subkey */
pub_where = NULL;
for( node = sec_keyblock; node; sec_where = node, node = node->next ) {
if( node->pkt->pkttype == PKT_SECRET_KEY )
sk = copy_secret_key( NULL, node->pkt->pkt.secret_key);
else if( node->pkt->pkttype == PKT_SECRET_SUBKEY )
break;
}
if( !node ) /* no subkey */
sec_where = NULL;
assert(pk && sk );
rc = make_keysig_packet( &sig, pk, uid, NULL, sk, 0x13, 0, 0,
keygen_add_std_prefs, pk );
free_secret_key( sk );
if( rc ) {
log_error("signing failed: %s\n", g10_errstr(rc) );
free_user_id(uid);
return 0;
}
/* insert/append to secret keyblock */
pkt = m_alloc_clear( sizeof *pkt );
pkt->pkttype = PKT_USER_ID;
pkt->pkt.user_id = copy_user_id(NULL, uid);
node = new_kbnode(pkt);
if( sec_where )
insert_kbnode( sec_where, node, 0 );
else
add_kbnode( sec_keyblock, node );
pkt = m_alloc_clear( sizeof *pkt );
pkt->pkttype = PKT_SIGNATURE;
pkt->pkt.signature = copy_signature(NULL, sig);
if( sec_where )
insert_kbnode( node, new_kbnode(pkt), 0 );
else
add_kbnode( sec_keyblock, new_kbnode(pkt) );
/* insert/append to public keyblock */
pkt = m_alloc_clear( sizeof *pkt );
pkt->pkttype = PKT_USER_ID;
pkt->pkt.user_id = uid;
node = new_kbnode(pkt);
if( pub_where )
insert_kbnode( pub_where, node, 0 );
else
add_kbnode( pub_keyblock, node );
pkt = m_alloc_clear( sizeof *pkt );
pkt->pkttype = PKT_SIGNATURE;
pkt->pkt.signature = copy_signature(NULL, sig);
if( pub_where )
insert_kbnode( node, new_kbnode(pkt), 0 );
else
add_kbnode( pub_keyblock, new_kbnode(pkt) );
return 1;
}
/****************
* Remove all selceted userids from the keyrings
*/
static void
menu_deluid( KBNODE pub_keyblock, KBNODE sec_keyblock )
{
KBNODE node;
int selected=0;
for( node = pub_keyblock; node; node = node->next ) {
if( node->pkt->pkttype == PKT_USER_ID ) {
selected = node->flag & NODFLG_SELUID;
if( selected ) {
delete_kbnode( node );
if( sec_keyblock ) {
KBNODE snode;
int s_selected = 0;
PKT_user_id *uid = node->pkt->pkt.user_id;
for( snode = sec_keyblock; snode; snode = snode->next ) {
if( snode->pkt->pkttype == PKT_USER_ID ) {
PKT_user_id *suid = snode->pkt->pkt.user_id;
s_selected =
(uid->len == suid->len
&& !memcmp( uid->name, suid->name, uid->len));
if( s_selected )
delete_kbnode( snode );
}
else if( s_selected
&& snode->pkt->pkttype == PKT_SIGNATURE )
delete_kbnode( snode );
else if( snode->pkt->pkttype == PKT_SECRET_SUBKEY )
s_selected = 0;
}
}
}
}
else if( selected && node->pkt->pkttype == PKT_SIGNATURE )
delete_kbnode( node );
else if( node->pkt->pkttype == PKT_PUBLIC_SUBKEY )
selected = 0;
}
commit_kbnode( &pub_keyblock );
if( sec_keyblock )
commit_kbnode( &sec_keyblock );
}
static int
menu_delsig( KBNODE pub_keyblock )
{
KBNODE node;
PKT_user_id *uid = NULL;
int changed=0;
for( node = pub_keyblock; node; node = node->next ) {
if( node->pkt->pkttype == PKT_USER_ID ) {
uid = (node->flag & NODFLG_SELUID)? node->pkt->pkt.user_id : NULL;
}
else if( uid && node->pkt->pkttype == PKT_SIGNATURE ) {
int okay, valid, selfsig, inv_sig, no_key, other_err;
tty_printf("uid ");
tty_print_utf8_string( uid->name, uid->len );
tty_printf("\n");
okay = inv_sig = no_key = other_err = 0;
valid = print_and_check_one_sig( pub_keyblock, node,
&inv_sig, &no_key, &other_err,
&selfsig, 1 );
if( valid )
okay = cpr_get_answer_yes_no_quit(
"keyedit.delsig.valid",
_("Delete this good signature? (y/N/q)"));
else if( inv_sig || other_err )
okay = cpr_get_answer_yes_no_quit(
"keyedit.delsig.invalid",
_("Delete this invalid signature? (y/N/q)"));
else if( no_key )
okay = cpr_get_answer_yes_no_quit(
"keyedit.delsig.unknown",
_("Delete this unknown signature? (y/N/q)"));
if( okay == -1 )
break;
if( okay && selfsig && !cpr_get_answer_is_yes(
"keyedit.delsig.selfsig",
_("Really delete this self-signature? (y/N)") ))
okay = 0;
if( okay ) {
delete_kbnode( node );
changed++;
}
}
else if( node->pkt->pkttype == PKT_PUBLIC_SUBKEY )
uid = NULL;
}
if( changed ) {
commit_kbnode( &pub_keyblock );
tty_printf( changed == 1? _("Deleted %d signature.\n")
: _("Deleted %d signatures.\n"), changed );
}
else
tty_printf( _("Nothing deleted.\n") );
return changed;
}
/****************
* Remove some of the secondary keys
*/
static void
menu_delkey( KBNODE pub_keyblock, KBNODE sec_keyblock )
{
KBNODE node;
int selected=0;
for( node = pub_keyblock; node; node = node->next ) {
if( node->pkt->pkttype == PKT_PUBLIC_SUBKEY ) {
selected = node->flag & NODFLG_SELKEY;
if( selected ) {
delete_kbnode( node );
if( sec_keyblock ) {
KBNODE snode;
int s_selected = 0;
u32 ki[2];
keyid_from_pk( node->pkt->pkt.public_key, ki );
for( snode = sec_keyblock; snode; snode = snode->next ) {
if( snode->pkt->pkttype == PKT_SECRET_SUBKEY ) {
u32 ki2[2];
keyid_from_sk( snode->pkt->pkt.secret_key, ki2 );
s_selected = (ki[0] == ki2[0] && ki[1] == ki2[1]);
if( s_selected )
delete_kbnode( snode );
}
else if( s_selected
&& snode->pkt->pkttype == PKT_SIGNATURE )
delete_kbnode( snode );
else
s_selected = 0;
}
}
}
}
else if( selected && node->pkt->pkttype == PKT_SIGNATURE )
delete_kbnode( node );
else
selected = 0;
}
commit_kbnode( &pub_keyblock );
if( sec_keyblock )
commit_kbnode( &sec_keyblock );
}
static int
menu_expire( KBNODE pub_keyblock, KBNODE sec_keyblock )
{
int n1, signumber, rc;
u32 expiredate;
int mainkey=0;
PKT_secret_key *sk; /* copy of the main sk */
PKT_public_key *main_pk, *sub_pk;
PKT_user_id *uid;
KBNODE node;
u32 keyid[2];
if( count_selected_keys( sec_keyblock ) ) {
tty_printf(_("Please remove selections from the secret keys.\n"));
return 0;
}
n1 = count_selected_keys( pub_keyblock );
if( n1 > 1 ) {
tty_printf(_("Please select at most one secondary key.\n"));
return 0;
}
else if( n1 )
tty_printf(_("Changing expiration time for a secondary key.\n"));
else {
tty_printf(_("Changing expiration time for the primary key.\n"));
mainkey=1;
}
expiredate = ask_expiredate();
node = find_kbnode( sec_keyblock, PKT_SECRET_KEY );
sk = copy_secret_key( NULL, node->pkt->pkt.secret_key);
/* Now we can actually change the self signature(s) */
main_pk = sub_pk = NULL;
uid = NULL;
signumber = 0;
for( node=pub_keyblock; node; node = node->next ) {
if( node->pkt->pkttype == PKT_PUBLIC_KEY ) {
main_pk = node->pkt->pkt.public_key;
keyid_from_pk( main_pk, keyid );
main_pk->expiredate = expiredate;
}
else if( node->pkt->pkttype == PKT_PUBLIC_SUBKEY
&& (node->flag & NODFLG_SELKEY ) ) {
sub_pk = node->pkt->pkt.public_key;
sub_pk->expiredate = expiredate;
}
else if( node->pkt->pkttype == PKT_USER_ID )
uid = node->pkt->pkt.user_id;
else if( main_pk && node->pkt->pkttype == PKT_SIGNATURE
&& ( mainkey || sub_pk ) ) {
PKT_signature *sig = node->pkt->pkt.signature;
if( keyid[0] == sig->keyid[0] && keyid[1] == sig->keyid[1]
&& ( (mainkey && uid && (sig->sig_class&~3) == 0x10)
|| (!mainkey && sig->sig_class == 0x18) ) ) {
/* this is a selfsignature which is to be replaced */
PKT_signature *newsig;
PACKET *newpkt;
KBNODE sn;
int signumber2 = 0;
signumber++;
if( (mainkey && main_pk->version < 4)
|| (!mainkey && sub_pk->version < 4 ) ) {
log_info(_(
"You can't change the expiration date of a v3 key\n"));
free_secret_key( sk );
return 0;
}
/* find the corresponding secret self-signature */
for( sn=sec_keyblock; sn; sn = sn->next ) {
if( sn->pkt->pkttype == PKT_SIGNATURE ) {
PKT_signature *b = sn->pkt->pkt.signature;
if( keyid[0] == b->keyid[0] && keyid[1] == b->keyid[1]
&& sig->sig_class == b->sig_class
&& ++signumber2 == signumber )
break;
}
}
if( !sn )
log_info(_("No corresponding signature in secret ring\n"));
/* create new self signature */
if( mainkey )
rc = make_keysig_packet( &newsig, main_pk, uid, NULL,
sk, 0x13, 0, 0,
keygen_add_std_prefs, main_pk );
else
rc = make_keysig_packet( &newsig, main_pk, NULL, sub_pk,
sk, 0x18, 0, 0,
keygen_add_key_expire, sub_pk );
if( rc ) {
log_error("make_keysig_packet failed: %s\n",
g10_errstr(rc));
free_secret_key( sk );
return 0;
}
/* replace the packet */
newpkt = m_alloc_clear( sizeof *newpkt );
newpkt->pkttype = PKT_SIGNATURE;
newpkt->pkt.signature = newsig;
free_packet( node->pkt );
m_free( node->pkt );
node->pkt = newpkt;
if( sn ) {
newpkt = m_alloc_clear( sizeof *newpkt );
newpkt->pkttype = PKT_SIGNATURE;
newpkt->pkt.signature = copy_signature( NULL, newsig );
free_packet( sn->pkt );
m_free( sn->pkt );
sn->pkt = newpkt;
}
sub_pk = NULL;
}
}
}
free_secret_key( sk );
return 1;
}
static int
change_primary_uid_cb ( PKT_signature *sig, void *opaque )
{
byte buf[1];
/* first clear all primary uid flags so that we are sure none are
* lingering around */
delete_sig_subpkt (sig->hashed, SIGSUBPKT_PRIMARY_UID);
delete_sig_subpkt (sig->unhashed, SIGSUBPKT_PRIMARY_UID);
/* if opaque is set,we want to set the primary id */
if (opaque) {
buf[0] = 1;
build_sig_subpkt (sig, SIGSUBPKT_PRIMARY_UID, buf, 1 );
}
return 0;
}
/*
* Set the primary uid flag for the selected UID. We will also reset
* all other primary uid flags. For this to work with have to update
* all the signature timestamps. If we would do this with the current
* time, we lose quite a lot of information, so we use a a kludge to
* do this: Just increment the timestamp by one second which is
* sufficient to updated a signature during import.
*/
static int
menu_set_primary_uid ( KBNODE pub_keyblock, KBNODE sec_keyblock )
{
PKT_secret_key *sk; /* copy of the main sk */
PKT_public_key *main_pk;
PKT_user_id *uid;
KBNODE node;
u32 keyid[2];
int selected;
int modified = 0;
if ( count_selected_uids (pub_keyblock) != 1 ) {
tty_printf(_("Please select exactly one user ID.\n"));
return 0;
}
node = find_kbnode( sec_keyblock, PKT_SECRET_KEY );
sk = copy_secret_key( NULL, node->pkt->pkt.secret_key);
/* Now we can actually change the self signature(s) */
main_pk = NULL;
uid = NULL;
selected = 0;
for ( node=pub_keyblock; node; node = node->next ) {
if ( node->pkt->pkttype == PKT_PUBLIC_SUBKEY )
break; /* ready */
if ( node->pkt->pkttype == PKT_PUBLIC_KEY ) {
main_pk = node->pkt->pkt.public_key;
keyid_from_pk( main_pk, keyid );
}
else if ( node->pkt->pkttype == PKT_USER_ID ) {
uid = node->pkt->pkt.user_id;
selected = node->flag & NODFLG_SELUID;
}
else if ( main_pk && uid && node->pkt->pkttype == PKT_SIGNATURE ) {
PKT_signature *sig = node->pkt->pkt.signature;
if ( keyid[0] == sig->keyid[0] && keyid[1] == sig->keyid[1]
&& (uid && (sig->sig_class&~3) == 0x10)
&& sig->version >= 4 ) {
/* this is a selfsignature which is to be replaced
* we can just ignore v3 signatures because they are
* not able to carry the primary ID flag */
/* FIXME: We must make sure that we only have one
self-signature per user ID here (not counting
revocations) */
PKT_signature *newsig;
PACKET *newpkt;
const byte *p;
int action;
/* see whether this signature has the primary UID flag */
p = parse_sig_subpkt (sig->hashed,
SIGSUBPKT_PRIMARY_UID, NULL );
if ( !p )
p = parse_sig_subpkt (sig->unhashed,
SIGSUBPKT_PRIMARY_UID, NULL );
if ( p && *p ) /* yes */
action = selected? 0 : -1;
else /* no */
action = selected? 1 : 0;
if (action) {
int rc = update_keysig_packet (&newsig, sig,
main_pk, uid,
sk,
change_primary_uid_cb,
action > 0? "x":NULL );
if( rc ) {
log_error ("update_keysig_packet failed: %s\n",
g10_errstr(rc));
free_secret_key( sk );
return 0;
}
/* replace the packet */
newpkt = m_alloc_clear( sizeof *newpkt );
newpkt->pkttype = PKT_SIGNATURE;
newpkt->pkt.signature = newsig;
free_packet( node->pkt );
m_free( node->pkt );
node->pkt = newpkt;
modified = 1;
}
}
}
}
free_secret_key( sk );
return modified;
}
/*
* Set preferences to new values for the selected user IDs
*/
static int
menu_set_preferences (KBNODE pub_keyblock, KBNODE sec_keyblock )
{
PKT_secret_key *sk; /* copy of the main sk */
PKT_public_key *main_pk;
PKT_user_id *uid;
KBNODE node;
u32 keyid[2];
int selected, select_all;
int modified = 0;
select_all = !count_selected_uids (pub_keyblock);
node = find_kbnode( sec_keyblock, PKT_SECRET_KEY );
sk = copy_secret_key( NULL, node->pkt->pkt.secret_key);
/* Now we can actually change the self signature(s) */
main_pk = NULL;
uid = NULL;
selected = 0;
for ( node=pub_keyblock; node; node = node->next ) {
if ( node->pkt->pkttype == PKT_PUBLIC_SUBKEY )
break; /* ready */
if ( node->pkt->pkttype == PKT_PUBLIC_KEY ) {
main_pk = node->pkt->pkt.public_key;
keyid_from_pk( main_pk, keyid );
}
else if ( node->pkt->pkttype == PKT_USER_ID ) {
uid = node->pkt->pkt.user_id;
selected = select_all || (node->flag & NODFLG_SELUID);
}
else if ( main_pk && uid && selected
&& node->pkt->pkttype == PKT_SIGNATURE ) {
PKT_signature *sig = node->pkt->pkt.signature;
if ( keyid[0] == sig->keyid[0] && keyid[1] == sig->keyid[1]
&& (uid && (sig->sig_class&~3) == 0x10)
&& sig->version >= 4 ) {
/* This is a selfsignature which is to be replaced
* We have to ignore v3 signatures because they are
* not able to carry the preferences */
PKT_signature *newsig;
PACKET *newpkt;
int rc;
rc = update_keysig_packet (&newsig, sig,
main_pk, uid,
sk,
keygen_upd_std_prefs,
NULL );
if( rc ) {
log_error ("update_keysig_packet failed: %s\n",
g10_errstr(rc));
free_secret_key( sk );
return 0;
}
/* replace the packet */
newpkt = m_alloc_clear( sizeof *newpkt );
newpkt->pkttype = PKT_SIGNATURE;
newpkt->pkt.signature = newsig;
free_packet( node->pkt );
m_free( node->pkt );
node->pkt = newpkt;
modified = 1;
}
}
}
free_secret_key( sk );
return modified;
}
/****************
* Select one user id or remove all selection if index is 0.
* Returns: True if the selection changed;
*/
static int
menu_select_uid( KBNODE keyblock, int idx )
{
KBNODE node;
int i;
/* first check that the index is valid */
if( idx ) {
for( i=0, node = keyblock; node; node = node->next ) {
if( node->pkt->pkttype == PKT_USER_ID ) {
if( ++i == idx )
break;
}
}
if( !node ) {
tty_printf(_("No user ID with index %d\n"), idx );
return 0;
}
}
else { /* reset all */
for( i=0, node = keyblock; node; node = node->next ) {
if( node->pkt->pkttype == PKT_USER_ID )
node->flag &= ~NODFLG_SELUID;
}
return 1;
}
/* and toggle the new index */
for( i=0, node = keyblock; node; node = node->next ) {
if( node->pkt->pkttype == PKT_USER_ID ) {
if( ++i == idx ) {
if( (node->flag & NODFLG_SELUID) )
node->flag &= ~NODFLG_SELUID;
else
node->flag |= NODFLG_SELUID;
}
}
}
return 1;
}
/****************
* Select secondary keys
* Returns: True if the selection changed;
*/
static int
menu_select_key( KBNODE keyblock, int idx )
{
KBNODE node;
int i;
/* first check that the index is valid */
if( idx ) {
for( i=0, node = keyblock; node; node = node->next ) {
if( node->pkt->pkttype == PKT_PUBLIC_SUBKEY
|| node->pkt->pkttype == PKT_SECRET_SUBKEY ) {
if( ++i == idx )
break;
}
}
if( !node ) {
tty_printf(_("No secondary key with index %d\n"), idx );
return 0;
}
}
else { /* reset all */
for( i=0, node = keyblock; node; node = node->next ) {
if( node->pkt->pkttype == PKT_PUBLIC_SUBKEY
|| node->pkt->pkttype == PKT_SECRET_SUBKEY )
node->flag &= ~NODFLG_SELKEY;
}
return 1;
}
/* and set the new index */
for( i=0, node = keyblock; node; node = node->next ) {
if( node->pkt->pkttype == PKT_PUBLIC_SUBKEY
|| node->pkt->pkttype == PKT_SECRET_SUBKEY ) {
if( ++i == idx ) {
if( (node->flag & NODFLG_SELKEY) )
node->flag &= ~NODFLG_SELKEY;
else
node->flag |= NODFLG_SELKEY;
}
}
}
return 1;
}
static int
count_uids_with_flag( KBNODE keyblock, unsigned flag )
{
KBNODE node;
int i=0;
for( node = keyblock; node; node = node->next )
if( node->pkt->pkttype == PKT_USER_ID && (node->flag & flag) )
i++;
return i;
}
static int
count_keys_with_flag( KBNODE keyblock, unsigned flag )
{
KBNODE node;
int i=0;
for( node = keyblock; node; node = node->next )
if( ( node->pkt->pkttype == PKT_PUBLIC_SUBKEY
|| node->pkt->pkttype == PKT_SECRET_SUBKEY)
&& (node->flag & flag) )
i++;
return i;
}
static int
count_uids( KBNODE keyblock )
{
KBNODE node;
int i=0;
for( node = keyblock; node; node = node->next )
if( node->pkt->pkttype == PKT_USER_ID )
i++;
return i;
}
/****************
* Returns true if there is at least one selected user id
*/
static int
count_selected_uids( KBNODE keyblock )
{
return count_uids_with_flag( keyblock, NODFLG_SELUID);
}
static int
count_selected_keys( KBNODE keyblock )
{
return count_keys_with_flag( keyblock, NODFLG_SELKEY);
}
/*
* Ask whether the signature should be revoked. If the user commits this,
* flag bit MARK_A is set on the signature and the user ID.
*/
static void
ask_revoke_sig( KBNODE keyblock, KBNODE node )
{
PKT_signature *sig = node->pkt->pkt.signature;
KBNODE unode = find_prev_kbnode( keyblock, node, PKT_USER_ID );
if( !unode ) {
log_error("Oops: no user ID for signature\n");
return;
}
tty_printf(_("user ID: \""));
tty_print_utf8_string( unode->pkt->pkt.user_id->name,
unode->pkt->pkt.user_id->len );
tty_printf(_("\"\nsigned with your key %08lX at %s\n"),
(ulong)sig->keyid[1], datestr_from_sig(sig) );
if( cpr_get_answer_is_yes("ask_revoke_sig.one",
_("Create a revocation certificate for this signature? (y/N)")) ) {
node->flag |= NODFLG_MARK_A;
unode->flag |= NODFLG_MARK_A;
}
}
/****************
* Display all user ids of the current public key together with signatures
* done by one of our keys. Then walk over all this sigs and ask the user
* whether he wants to revoke this signature.
* Return: True when the keyblock has changed.
*/
static int
menu_revsig( KBNODE keyblock )
{
PKT_signature *sig;
PKT_public_key *primary_pk;
KBNODE node;
int changed = 0;
int upd_trust = 0;
int rc, any;
struct revocation_reason_info *reason = NULL;
/* FIXME: detect duplicates here */
tty_printf(_("You have signed these user IDs:\n"));
for( node = keyblock; node; node = node->next ) {
node->flag &= ~(NODFLG_SELSIG | NODFLG_MARK_A);
if( node->pkt->pkttype == PKT_USER_ID ) {
PKT_user_id *uid = node->pkt->pkt.user_id;
/* Hmmm: Should we show only UIDs with a signature? */
tty_printf(" ");
tty_print_utf8_string( uid->name, uid->len );
tty_printf("\n");
}
else if( node->pkt->pkttype == PKT_SIGNATURE
&& ((sig = node->pkt->pkt.signature),
!seckey_available( sig->keyid ) ) ) {
if( (sig->sig_class&~3) == 0x10 ) {
tty_printf(_(" signed by %08lX at %s\n"),
(ulong)sig->keyid[1], datestr_from_sig(sig) );
node->flag |= NODFLG_SELSIG;
}
else if( sig->sig_class == 0x30 ) {
tty_printf(_(" revoked by %08lX at %s\n"),
(ulong)sig->keyid[1], datestr_from_sig(sig) );
}
}
}
/* ask */
for( node = keyblock; node; node = node->next ) {
if( !(node->flag & NODFLG_SELSIG) )
continue;
ask_revoke_sig( keyblock, node );
}
/* present selected */
any = 0;
for( node = keyblock; node; node = node->next ) {
if( !(node->flag & NODFLG_MARK_A) )
continue;
if( !any ) {
any = 1;
tty_printf(_("You are about to revoke these signatures:\n"));
}
if( node->pkt->pkttype == PKT_USER_ID ) {
PKT_user_id *uid = node->pkt->pkt.user_id;
tty_printf(" ");
tty_print_utf8_string( uid->name, uid->len );
tty_printf("\n");
}
else if( node->pkt->pkttype == PKT_SIGNATURE ) {
sig = node->pkt->pkt.signature;
tty_printf(_(" signed by %08lX at %s\n"),
(ulong)sig->keyid[1], datestr_from_sig(sig) );
}
}
if( !any )
return 0; /* none selected */
if( !cpr_get_answer_is_yes("ask_revoke_sig.okay",
_("Really create the revocation certificates? (y/N)")) )
return 0; /* forget it */
reason = ask_revocation_reason( 0, 1, 0 );
if( !reason ) { /* user decided to cancel */
return 0;
}
/* now we can sign the user ids */
reloop: /* (must use this, because we are modifing the list) */
primary_pk = keyblock->pkt->pkt.public_key;
for( node=keyblock; node; node = node->next ) {
KBNODE unode;
PACKET *pkt;
struct sign_attrib attrib;
PKT_secret_key *sk;
if( !(node->flag & NODFLG_MARK_A)
|| node->pkt->pkttype != PKT_SIGNATURE )
continue;
unode = find_prev_kbnode( keyblock, node, PKT_USER_ID );
assert( unode ); /* we already checked this */
memset( &attrib, 0, sizeof attrib );
attrib.reason = reason;
node->flag &= ~NODFLG_MARK_A;
sk = m_alloc_secure_clear( sizeof *sk );
if( get_seckey( sk, node->pkt->pkt.signature->keyid ) ) {
log_info(_("no secret key\n"));
continue;
}
rc = make_keysig_packet( &sig, primary_pk,
unode->pkt->pkt.user_id,
NULL,
sk,
0x30, 0, 0,
sign_mk_attrib,
&attrib );
free_secret_key(sk);
if( rc ) {
log_error(_("signing failed: %s\n"), g10_errstr(rc));
release_revocation_reason_info( reason );
return changed;
}
changed = 1; /* we changed the keyblock */
upd_trust = 1;
pkt = m_alloc_clear( sizeof *pkt );
pkt->pkttype = PKT_SIGNATURE;
pkt->pkt.signature = sig;
insert_kbnode( unode, new_kbnode(pkt), 0 );
goto reloop;
}
if( upd_trust )
clear_trust_checked_flag( primary_pk );
release_revocation_reason_info( reason );
return changed;
}
/****************
* Revoke some of the secondary keys.
* Hmmm: Should we add a revocation to the secret keyring too?
* Does its all make sense to duplicate most of the information?
*/
static int
menu_revkey( KBNODE pub_keyblock, KBNODE sec_keyblock )
{
PKT_public_key *mainpk;
KBNODE node;
int changed = 0;
int upd_trust = 0;
int rc;
struct revocation_reason_info *reason = NULL;
reason = ask_revocation_reason( 1, 0, 0 );
if( !reason ) { /* user decided to cancel */
return 0;
}
reloop: /* (better this way because we are modifing the keyring) */
mainpk = pub_keyblock->pkt->pkt.public_key;
for( node = pub_keyblock; node; node = node->next ) {
if( node->pkt->pkttype == PKT_PUBLIC_SUBKEY
&& (node->flag & NODFLG_SELKEY) ) {
PACKET *pkt;
PKT_signature *sig;
PKT_secret_key *sk;
PKT_public_key *subpk = node->pkt->pkt.public_key;
struct sign_attrib attrib;
memset( &attrib, 0, sizeof attrib );
attrib.reason = reason;
node->flag &= ~NODFLG_SELKEY;
sk = copy_secret_key( NULL, sec_keyblock->pkt->pkt.secret_key );
rc = make_keysig_packet( &sig, mainpk, NULL, subpk, sk,
0x28, 0, 0,
sign_mk_attrib, &attrib );
free_secret_key(sk);
if( rc ) {
log_error(_("signing failed: %s\n"), g10_errstr(rc));
release_revocation_reason_info( reason );
return changed;
}
changed = 1; /* we changed the keyblock */
upd_trust = 1;
pkt = m_alloc_clear( sizeof *pkt );
pkt->pkttype = PKT_SIGNATURE;
pkt->pkt.signature = sig;
insert_kbnode( node, new_kbnode(pkt), 0 );
goto reloop;
}
}
commit_kbnode( &pub_keyblock );
/*commit_kbnode( &sec_keyblock );*/
if( upd_trust )
clear_trust_checked_flag( mainpk );
release_revocation_reason_info( reason );
return changed;
}
static int
enable_disable_key( KBNODE keyblock, int disable )
{
ulong lid = find_kbnode( keyblock, PKT_PUBLIC_KEY )
->pkt->pkt.public_key->local_id;
unsigned int trust, newtrust;
/* Note: Because the keys have beed displayed, we have
* ensured that local_id has been set */
trust = newtrust = get_ownertrust( lid );
newtrust &= ~TRUST_FLAG_DISABLED;
if( disable )
newtrust |= TRUST_FLAG_DISABLED;
if( trust == newtrust )
return 0; /* already in that state */
if( !update_ownertrust( lid, newtrust ) )
return 1;
return 0;
}
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