Allow uid sand key election using a '*'.
[gnupg.git] / g10 / keyedit.c
1 /* keyedit.c - keyedit stuff
2  * Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
3  *               2008, 2009 Free Software Foundation, Inc.
4  *
5  * This file is part of GnuPG.
6  *
7  * GnuPG is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; either version 3 of the License, or
10  * (at your option) any later version.
11  *
12  * GnuPG is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, see <http://www.gnu.org/licenses/>.
19  */
20
21 #include <config.h>
22 #include <stdio.h>
23 #include <stdlib.h>
24 #include <string.h>
25 #include <errno.h>
26 #include <assert.h>
27 #include <ctype.h>
28 #ifdef HAVE_LIBREADLINE
29 #define GNUPG_LIBREADLINE_H_INCLUDED
30 #include <readline/readline.h>
31 #endif
32
33 #include "gpg.h"
34 #include "options.h"
35 #include "packet.h"
36 #include "status.h"
37 #include "iobuf.h"
38 #include "keydb.h"
39 #include "photoid.h"
40 #include "util.h"
41 #include "main.h"
42 #include "trustdb.h"
43 #include "filter.h"
44 #include "ttyio.h"
45 #include "status.h"
46 #include "i18n.h"
47 #include "keyserver-internal.h"
48
49 static void show_prefs( PKT_user_id *uid, PKT_signature *selfsig, int verbose);
50 static void show_names(KBNODE keyblock,PKT_public_key *pk,
51                        unsigned int flag,int with_prefs);
52 static void show_key_with_all_names( KBNODE keyblock, int only_marked,
53             int with_revoker, int with_fpr, int with_subkeys, int with_prefs );
54 static void show_key_and_fingerprint( KBNODE keyblock );
55 static int menu_adduid( KBNODE keyblock, KBNODE sec_keyblock,
56                         int photo, const char *photo_name );
57 static void menu_deluid( KBNODE pub_keyblock, KBNODE sec_keyblock );
58 static int menu_delsig( KBNODE pub_keyblock );
59 static int menu_clean(KBNODE keyblock,int self_only);
60 static void menu_delkey( KBNODE pub_keyblock, KBNODE sec_keyblock );
61 static int menu_addrevoker( KBNODE pub_keyblock,
62                             KBNODE sec_keyblock, int sensitive );
63 static int menu_expire( KBNODE pub_keyblock, KBNODE sec_keyblock );
64 static int menu_backsign(KBNODE pub_keyblock,KBNODE sec_keyblock);
65 static int menu_set_primary_uid( KBNODE pub_keyblock, KBNODE sec_keyblock );
66 static int menu_set_preferences( KBNODE pub_keyblock, KBNODE sec_keyblock );
67 static int menu_set_keyserver_url (const char *url,
68                                    KBNODE pub_keyblock, KBNODE sec_keyblock );
69 static int menu_set_notation(const char *string,
70                              KBNODE pub_keyblock,KBNODE sec_keyblock);
71 static int menu_select_uid( KBNODE keyblock, int idx );
72 static int menu_select_uid_namehash( KBNODE keyblock, const char *namehash );
73 static int menu_select_key( KBNODE keyblock, int idx );
74 static int count_uids( KBNODE keyblock );
75 static int count_uids_with_flag( KBNODE keyblock, unsigned flag );
76 static int count_keys_with_flag( KBNODE keyblock, unsigned flag );
77 static int count_selected_uids( KBNODE keyblock );
78 static int real_uids_left( KBNODE keyblock );
79 static int count_selected_keys( KBNODE keyblock );
80 static int menu_revsig( KBNODE keyblock );
81 static int menu_revuid( KBNODE keyblock, KBNODE sec_keyblock );
82 static int menu_revkey( KBNODE pub_keyblock, KBNODE sec_keyblock );
83 static int menu_revsubkey( KBNODE pub_keyblock, KBNODE sec_keyblock );
84 static int enable_disable_key( KBNODE keyblock, int disable );
85 static void menu_showphoto( KBNODE keyblock );
86
87 static int update_trust=0;
88
89 #define CONTROL_D ('D' - 'A' + 1)
90
91 #define NODFLG_BADSIG (1<<0)  /* bad signature */
92 #define NODFLG_NOKEY  (1<<1)  /* no public key */
93 #define NODFLG_SIGERR (1<<2)  /* other sig error */
94
95 #define NODFLG_MARK_A (1<<4)  /* temporary mark */
96 #define NODFLG_DELSIG (1<<5)  /* to be deleted */
97
98 #define NODFLG_SELUID (1<<8)  /* indicate the selected userid */
99 #define NODFLG_SELKEY (1<<9)  /* indicate the selected key */
100 #define NODFLG_SELSIG (1<<10) /* indicate a selected signature */
101
102 struct sign_attrib {
103     int non_exportable,non_revocable;
104     struct revocation_reason_info *reason;
105     byte trust_depth,trust_value;
106     char *trust_regexp;
107 };
108
109
110 #ifdef ENABLE_CARD_SUPPORT
111 /* Given a node SEC_NODE with a secret key or subkey, locate the
112    corresponding public key from pub_keyblock. */
113 static PKT_public_key *
114 find_pk_from_sknode (KBNODE pub_keyblock, KBNODE sec_node)
115 {
116   KBNODE node = pub_keyblock;
117   PKT_secret_key *sk;
118   PKT_public_key *pk;
119   
120   if (sec_node->pkt->pkttype == PKT_SECRET_KEY
121       && node->pkt->pkttype == PKT_PUBLIC_KEY)
122     return node->pkt->pkt.public_key;
123   if (sec_node->pkt->pkttype != PKT_SECRET_SUBKEY)
124     return NULL;
125   sk = sec_node->pkt->pkt.secret_key;
126   for (; node; node = node->next)
127     if (node->pkt->pkttype == PKT_PUBLIC_SUBKEY)
128       {
129         pk = node->pkt->pkt.public_key;
130         if (pk->keyid[0] == sk->keyid[0] && pk->keyid[1] == sk->keyid[1])
131           return pk;
132       }
133       
134   return NULL;
135 }
136 #endif /* ENABLE_CARD_SUPPORT */
137
138
139 /* TODO: Fix duplicated code between here and the check-sigs/list-sigs
140    code in keylist.c. */
141 static int
142 print_and_check_one_sig_colon( KBNODE keyblock, KBNODE node,
143                                int *inv_sigs, int *no_key, int *oth_err,
144                                int *is_selfsig, int print_without_key )
145 {
146   PKT_signature *sig = node->pkt->pkt.signature;
147   int rc, sigrc;
148
149   /* TODO: Make sure a cached sig record here still has the pk that
150      issued it.  See also keylist.c:list_keyblock_print */
151
152   switch((rc=check_key_signature(keyblock,node,is_selfsig)))
153     {
154     case 0:
155       node->flag &= ~(NODFLG_BADSIG|NODFLG_NOKEY|NODFLG_SIGERR);
156       sigrc = '!';
157       break;
158     case G10ERR_BAD_SIGN:
159       node->flag = NODFLG_BADSIG;
160       sigrc = '-';
161       if( inv_sigs )
162         ++*inv_sigs;
163       break;
164     case G10ERR_NO_PUBKEY:
165     case G10ERR_UNU_PUBKEY:
166       node->flag = NODFLG_NOKEY;
167       sigrc = '?';
168       if( no_key )
169         ++*no_key;
170       break;
171     default:
172       node->flag = NODFLG_SIGERR;
173       sigrc = '%';
174       if( oth_err )
175         ++*oth_err;
176       break;
177     }
178
179   if( sigrc != '?' || print_without_key )
180     {
181       printf("sig:%c::%d:%08lX%08lX:%lu:%lu:",
182              sigrc,sig->pubkey_algo,(ulong)sig->keyid[0],(ulong)sig->keyid[1],
183              (ulong)sig->timestamp,(ulong)sig->expiredate);
184
185       if(sig->trust_depth || sig->trust_value)
186         printf("%d %d",sig->trust_depth,sig->trust_value);
187
188       printf(":");
189
190       if(sig->trust_regexp)
191         print_string(stdout,sig->trust_regexp,strlen(sig->trust_regexp),':');
192
193       printf("::%02x%c\n",sig->sig_class,sig->flags.exportable?'x':'l');
194
195       if(opt.show_subpackets)
196         print_subpackets_colon(sig);
197     }
198
199   return (sigrc == '!');
200 }
201
202
203 /****************
204  * Print information about a signature, check it and return true
205  * if the signature is okay. NODE must be a signature packet.
206  */
207 static int
208 print_and_check_one_sig( KBNODE keyblock, KBNODE node,
209                          int *inv_sigs, int *no_key, int *oth_err,
210                         int *is_selfsig, int print_without_key )
211 {
212     PKT_signature *sig = node->pkt->pkt.signature;
213     int rc, sigrc;
214     int is_rev = sig->sig_class == 0x30;
215
216     /* TODO: Make sure a cached sig record here still has the pk that
217        issued it.  See also keylist.c:list_keyblock_print */
218
219     switch( (rc = check_key_signature( keyblock, node, is_selfsig)) ) {
220       case 0:
221         node->flag &= ~(NODFLG_BADSIG|NODFLG_NOKEY|NODFLG_SIGERR);
222         sigrc = '!';
223         break;
224       case G10ERR_BAD_SIGN:
225         node->flag = NODFLG_BADSIG;
226         sigrc = '-';
227         if( inv_sigs )
228             ++*inv_sigs;
229         break;
230       case G10ERR_NO_PUBKEY:
231       case G10ERR_UNU_PUBKEY:
232         node->flag = NODFLG_NOKEY;
233         sigrc = '?';
234         if( no_key )
235             ++*no_key;
236         break;
237       default:
238         node->flag = NODFLG_SIGERR;
239         sigrc = '%';
240         if( oth_err )
241             ++*oth_err;
242         break;
243     }
244     if( sigrc != '?' || print_without_key ) {
245         tty_printf("%s%c%c %c%c%c%c%c%c %s %s",
246                    is_rev? "rev":"sig",sigrc,
247                    (sig->sig_class-0x10>0 &&
248                     sig->sig_class-0x10<4)?'0'+sig->sig_class-0x10:' ',
249                    sig->flags.exportable?' ':'L',
250                    sig->flags.revocable?' ':'R',
251                    sig->flags.policy_url?'P':' ',
252                    sig->flags.notation?'N':' ',
253                    sig->flags.expired?'X':' ',
254                    (sig->trust_depth>9)?'T':
255                    (sig->trust_depth>0)?'0'+sig->trust_depth:' ',
256                    keystr(sig->keyid),datestr_from_sig(sig));
257         if(opt.list_options&LIST_SHOW_SIG_EXPIRE)
258           tty_printf(" %s",expirestr_from_sig(sig));
259         tty_printf("  ");
260         if( sigrc == '%' )
261             tty_printf("[%s] ", g10_errstr(rc) );
262         else if( sigrc == '?' )
263             ;
264         else if( *is_selfsig ) {
265             tty_printf( is_rev? _("[revocation]")
266                               : _("[self-signature]") );
267         }
268         else
269           {
270             size_t n;
271             char *p = get_user_id( sig->keyid, &n );
272             tty_print_utf8_string2(p, n, opt.screen_columns-keystrlen()-26-
273                                ((opt.list_options&LIST_SHOW_SIG_EXPIRE)?11:0));
274             xfree(p);
275           }
276         tty_printf("\n");
277
278         if(sig->flags.policy_url && (opt.list_options&LIST_SHOW_POLICY_URLS))
279           show_policy_url(sig,3,0);
280
281         if(sig->flags.notation && (opt.list_options&LIST_SHOW_NOTATIONS))
282           show_notation(sig,3,0,
283                         ((opt.list_options&LIST_SHOW_STD_NOTATIONS)?1:0)+
284                         ((opt.list_options&LIST_SHOW_USER_NOTATIONS)?2:0));
285
286         if(sig->flags.pref_ks && (opt.list_options&LIST_SHOW_KEYSERVER_URLS))
287           show_keyserver_url(sig,3,0);
288     }
289
290     return (sigrc == '!');
291 }
292
293
294
295 /****************
296  * Check the keysigs and set the flags to indicate errors.
297  * Returns true if error found.
298  */
299 static int
300 check_all_keysigs( KBNODE keyblock, int only_selected )
301 {
302     KBNODE kbctx;
303     KBNODE node;
304     int inv_sigs = 0;
305     int no_key = 0;
306     int oth_err = 0;
307     int has_selfsig = 0;
308     int mis_selfsig = 0;
309     int selected = !only_selected;
310     int anyuid = 0;
311
312     for( kbctx=NULL; (node=walk_kbnode( keyblock, &kbctx, 0)) ; ) {
313         if( node->pkt->pkttype == PKT_USER_ID ) {
314             PKT_user_id *uid = node->pkt->pkt.user_id;
315
316             if( only_selected )
317                 selected = (node->flag & NODFLG_SELUID);
318             if( selected ) {
319                 tty_printf("uid  ");
320                 tty_print_utf8_string( uid->name, uid->len );
321                 tty_printf("\n");
322                 if( anyuid && !has_selfsig )
323                     mis_selfsig++;
324                 has_selfsig = 0;
325                 anyuid = 1;
326             }
327         }
328         else if( selected && node->pkt->pkttype == PKT_SIGNATURE
329                  && ( (node->pkt->pkt.signature->sig_class&~3) == 0x10
330                      || node->pkt->pkt.signature->sig_class == 0x30 )  ) {
331             int selfsig;
332
333             if( print_and_check_one_sig( keyblock, node, &inv_sigs,
334                                         &no_key, &oth_err, &selfsig, 0 ) ) {
335                 if( selfsig )
336                     has_selfsig = 1;
337             }
338             /* Hmmm: should we update the trustdb here? */
339         }
340     }
341     if( !has_selfsig )
342         mis_selfsig++;
343     if( inv_sigs == 1 )
344         tty_printf(_("1 bad signature\n") );
345     else if( inv_sigs )
346         tty_printf(_("%d bad signatures\n"), inv_sigs );
347     if( no_key == 1 )
348         tty_printf(_("1 signature not checked due to a missing key\n") );
349     else if( no_key )
350         tty_printf(_("%d signatures not checked due to missing keys\n"), no_key );
351     if( oth_err == 1 )
352         tty_printf(_("1 signature not checked due to an error\n") );
353     else if( oth_err )
354         tty_printf(_("%d signatures not checked due to errors\n"), oth_err );
355     if( mis_selfsig == 1 )
356         tty_printf(_("1 user ID without valid self-signature detected\n"));
357     else if( mis_selfsig  )
358         tty_printf(_("%d user IDs without valid self-signatures detected\n"),
359                                                                     mis_selfsig);
360
361     return inv_sigs || no_key || oth_err || mis_selfsig;
362 }
363
364
365 static int
366 sign_mk_attrib( PKT_signature *sig, void *opaque )
367 {
368     struct sign_attrib *attrib = opaque;
369     byte buf[8];
370
371     if( attrib->non_exportable ) {
372         buf[0] = 0; /* not exportable */
373         build_sig_subpkt( sig, SIGSUBPKT_EXPORTABLE, buf, 1 );
374     }
375
376     if( attrib->non_revocable ) {
377         buf[0] = 0; /* not revocable */
378         build_sig_subpkt( sig, SIGSUBPKT_REVOCABLE, buf, 1 );
379     }
380
381     if( attrib->reason )
382         revocation_reason_build_cb( sig, attrib->reason );
383
384     if(attrib->trust_depth)
385       {
386         /* Not critical.  If someone doesn't understand trust sigs,
387            this can still be a valid regular signature. */
388         buf[0] = attrib->trust_depth;
389         buf[1] = attrib->trust_value;
390         build_sig_subpkt(sig,SIGSUBPKT_TRUST,buf,2);
391
392         /* Critical.  If someone doesn't understands regexps, this
393            whole sig should be invalid.  Note the +1 for the length -
394            regexps are null terminated. */
395         if(attrib->trust_regexp)
396           build_sig_subpkt(sig,SIGSUBPKT_FLAG_CRITICAL|SIGSUBPKT_REGEXP,
397                            attrib->trust_regexp,
398                            strlen(attrib->trust_regexp)+1);
399       }
400
401     return 0;
402 }
403
404 static void
405 trustsig_prompt(byte *trust_value,byte *trust_depth,char **regexp)
406 {
407   char *p;
408
409   *trust_value=0;
410   *trust_depth=0;
411   *regexp=NULL;
412
413   /* Same string as pkclist.c:do_edit_ownertrust */
414   tty_printf(_("Please decide how far you trust this user to correctly verify"
415                " other users' keys\n(by looking at passports, checking"
416                " fingerprints from different sources, etc.)\n"));
417   tty_printf("\n");
418   tty_printf (_("  %d = I trust marginally\n"), 1);
419   tty_printf (_("  %d = I trust fully\n"), 2);
420   tty_printf("\n");
421
422   while(*trust_value==0)
423     {
424       p = cpr_get("trustsig_prompt.trust_value",_("Your selection? "));
425       trim_spaces(p);
426       cpr_kill_prompt();
427       /* 60 and 120 are as per RFC2440 */
428       if(p[0]=='1' && !p[1])
429         *trust_value=60;
430       else if(p[0]=='2' && !p[1])
431         *trust_value=120;
432       xfree(p);
433     }
434
435   tty_printf("\n");
436
437   tty_printf(_(
438               "Please enter the depth of this trust signature.\n"
439               "A depth greater than 1 allows the key you are signing to make\n"
440               "trust signatures on your behalf.\n"));
441   tty_printf("\n");
442
443   while(*trust_depth==0)
444     {
445       p = cpr_get("trustsig_prompt.trust_depth",_("Your selection? "));
446       trim_spaces(p);
447       cpr_kill_prompt();
448       *trust_depth=atoi(p);
449       xfree(p);
450     }
451
452   tty_printf("\n");
453
454   tty_printf(_("Please enter a domain to restrict this signature, "
455                "or enter for none.\n"));
456
457   tty_printf("\n");
458
459   p=cpr_get("trustsig_prompt.trust_regexp",_("Your selection? "));
460   trim_spaces(p);
461   cpr_kill_prompt();
462
463   if(strlen(p)>0)
464     {
465       char *q=p;
466       int regexplen=100,ind;
467
468       *regexp=xmalloc(regexplen);
469
470       /* Now mangle the domain the user entered into a regexp.  To do
471          this, \-escape everything that isn't alphanumeric, and attach
472          "<[^>]+[@.]" to the front, and ">$" to the end. */
473
474       strcpy(*regexp,"<[^>]+[@.]");
475       ind=strlen(*regexp);
476
477       while(*q)
478         {
479           if(!((*q>='A' && *q<='Z')
480                || (*q>='a' && *q<='z') || (*q>='0' && *q<='9')))
481             (*regexp)[ind++]='\\';
482
483           (*regexp)[ind++]=*q;
484
485           if((regexplen-ind)<3)
486             {
487               regexplen+=100;
488               *regexp=xrealloc(*regexp,regexplen);
489             }
490
491           q++;
492         }
493
494       (*regexp)[ind]='\0';
495       strcat(*regexp,">$");
496     }
497
498   xfree(p);
499   tty_printf("\n");
500 }
501
502 /****************
503  * Loop over all locusr and and sign the uids after asking.
504  * If no user id is marked, all user ids will be signed;
505  * if some user_ids are marked those will be signed.
506  */
507 static int
508 sign_uids( KBNODE keyblock, strlist_t locusr, int *ret_modified,
509            int local, int nonrevocable, int trust, int interactive )
510 {
511     int rc = 0;
512     SK_LIST sk_list = NULL;
513     SK_LIST sk_rover = NULL;
514     PKT_secret_key *sk = NULL;
515     KBNODE node, uidnode;
516     PKT_public_key *primary_pk=NULL;
517     int select_all = !count_selected_uids(keyblock) || interactive;
518     int all_v3=1;
519
520     /* Are there any non-v3 sigs on this key already? */
521     if(PGP2)
522       for(node=keyblock;node;node=node->next)
523         if(node->pkt->pkttype==PKT_SIGNATURE &&
524            node->pkt->pkt.signature->version>3)
525           {
526             all_v3=0;
527             break;
528           }
529
530     /* build a list of all signators.
531      *    
532      * We use the CERT flag to request the primary which must always
533      * be one which is capable of signing keys.  I can't see a reason
534      * why to sign keys using a subkey.  Implementation of USAGE_CERT
535      * is just a hack in getkey.c and does not mean that a subkey
536      * marked as certification capable will be used. */
537     rc=build_sk_list( locusr, &sk_list, 0, PUBKEY_USAGE_CERT);
538     if( rc )
539         goto leave;
540
541     /* loop over all signators */
542     for( sk_rover = sk_list; sk_rover; sk_rover = sk_rover->next ) {
543         u32 sk_keyid[2],pk_keyid[2];
544         char *p,*trust_regexp=NULL;
545         int force_v4=0,class=0,selfsig=0;
546         u32 duration=0,timestamp=0;
547         byte trust_depth=0,trust_value=0;
548
549         if(local || nonrevocable || trust ||
550            opt.cert_policy_url || opt.cert_notations)
551           force_v4=1;
552
553         /* we have to use a copy of the sk, because make_keysig_packet
554          * may remove the protection from sk and if we did other
555          * changes to the secret key, we would save the unprotected
556          * version */
557         if( sk )
558             free_secret_key(sk);
559         sk = copy_secret_key( NULL, sk_rover->sk );
560         keyid_from_sk( sk, sk_keyid );
561         /* set mark A for all selected user ids */
562         for( node=keyblock; node; node = node->next ) {
563             if( select_all || (node->flag & NODFLG_SELUID) )
564                 node->flag |= NODFLG_MARK_A;
565             else
566                 node->flag &= ~NODFLG_MARK_A;
567         }
568         /* reset mark for uids which are already signed */
569         uidnode = NULL;
570         for( node=keyblock; node; node = node->next ) {
571             if( node->pkt->pkttype == PKT_PUBLIC_KEY ) {
572                 primary_pk=node->pkt->pkt.public_key;
573                 keyid_from_pk( primary_pk, pk_keyid );
574
575                 /* Is this a self-sig? */
576                 if(pk_keyid[0]==sk_keyid[0] && pk_keyid[1]==sk_keyid[1])
577                   {
578                     selfsig=1;
579                     /* Do not force a v4 sig here, otherwise it would
580                        be difficult to remake a v3 selfsig.  If this
581                        is a v3->v4 promotion case, then we set
582                        force_v4 later anyway. */
583                     force_v4=0;
584                   }
585             }
586             else if( node->pkt->pkttype == PKT_USER_ID )
587               {
588                 uidnode = (node->flag & NODFLG_MARK_A)? node : NULL;
589                 if(uidnode)
590                   {
591                     int yesreally=0;
592                     char *user=utf8_to_native(uidnode->pkt->pkt.user_id->name,
593                                               uidnode->pkt->pkt.user_id->len,
594                                               0);
595
596                     if(uidnode->pkt->pkt.user_id->is_revoked)
597                       {
598                         tty_printf(_("User ID \"%s\" is revoked."),user);
599
600                         if(selfsig)
601                           tty_printf("\n");
602                         else if(opt.expert)
603                           {
604                             tty_printf("\n");
605                             /* No, so remove the mark and continue */
606                             if(!cpr_get_answer_is_yes("sign_uid.revoke_okay",
607                                                       _("Are you sure you "
608                                                         "still want to sign "
609                                                         "it? (y/N) ")))
610                               {
611                                 uidnode->flag &= ~NODFLG_MARK_A;
612                                 uidnode=NULL;
613                               }
614                             else if(interactive)
615                               yesreally=1;
616                           }
617                         else
618                           {
619                             uidnode->flag &= ~NODFLG_MARK_A;
620                             uidnode=NULL;
621                             tty_printf(_("  Unable to sign.\n"));
622                           }
623                       }
624                     else if(uidnode->pkt->pkt.user_id->is_expired)
625                       {
626                         tty_printf(_("User ID \"%s\" is expired."),user);
627
628                         if(selfsig)
629                           tty_printf("\n");
630                         else if(opt.expert)
631                           {
632                             tty_printf("\n");
633                             /* No, so remove the mark and continue */
634                             if(!cpr_get_answer_is_yes("sign_uid.expire_okay",
635                                                       _("Are you sure you "
636                                                         "still want to sign "
637                                                         "it? (y/N) ")))
638                               {
639                                 uidnode->flag &= ~NODFLG_MARK_A;
640                                 uidnode=NULL;
641                               }
642                             else if(interactive)
643                               yesreally=1;
644                           }
645                         else
646                           {
647                             uidnode->flag &= ~NODFLG_MARK_A;
648                             uidnode=NULL;
649                             tty_printf(_("  Unable to sign.\n"));
650                           }
651                       }
652                     else if(!uidnode->pkt->pkt.user_id->created && !selfsig)
653                       {
654                         tty_printf(_("User ID \"%s\" is not self-signed."),
655                                    user);
656
657                         if(opt.expert)
658                           {
659                             tty_printf("\n");
660                             /* No, so remove the mark and continue */
661                             if(!cpr_get_answer_is_yes("sign_uid.nosig_okay",
662                                                       _("Are you sure you "
663                                                         "still want to sign "
664                                                         "it? (y/N) ")))
665                               {
666                                 uidnode->flag &= ~NODFLG_MARK_A;
667                                 uidnode=NULL;
668                               }
669                             else if(interactive)
670                               yesreally=1;
671                           }
672                         else
673                           {
674                             uidnode->flag &= ~NODFLG_MARK_A;
675                             uidnode=NULL;
676                             tty_printf(_("  Unable to sign.\n"));
677                           }
678                       }
679
680                     if(uidnode && interactive && !yesreally)
681                       {
682                         tty_printf(_("User ID \"%s\" is signable.  "),user);
683                         if(!cpr_get_answer_is_yes("sign_uid.sign_okay",
684                                                   _("Sign it? (y/N) ")))
685                           {
686                             uidnode->flag &= ~NODFLG_MARK_A;
687                             uidnode=NULL;
688                           }
689                       }
690
691                     xfree(user);
692                   }
693               }
694             else if( uidnode && node->pkt->pkttype == PKT_SIGNATURE
695                 && (node->pkt->pkt.signature->sig_class&~3) == 0x10 ) {
696                 if( sk_keyid[0] == node->pkt->pkt.signature->keyid[0]
697                     && sk_keyid[1] == node->pkt->pkt.signature->keyid[1] ) {
698                     char buf[50];
699                     char *user=utf8_to_native(uidnode->pkt->pkt.user_id->name,
700                                               uidnode->pkt->pkt.user_id->len,
701                                               0);
702
703                     /* It's a v3 self-sig.  Make it into a v4 self-sig? */
704                     if(node->pkt->pkt.signature->version<4 && selfsig)
705                       {
706                         tty_printf(_("The self-signature on \"%s\"\n"
707                                      "is a PGP 2.x-style signature.\n"),user);
708  
709                         /* Note that the regular PGP2 warning below
710                            still applies if there are no v4 sigs on
711                            this key at all. */
712
713                         if(opt.expert)
714                           if(cpr_get_answer_is_yes("sign_uid.v4_promote_okay",
715                                                    _("Do you want to promote "
716                                                      "it to an OpenPGP self-"
717                                                      "signature? (y/N) ")))
718                             {
719                               force_v4=1;
720                               node->flag|=NODFLG_DELSIG;
721                               xfree(user);
722                               continue;
723                             }
724                       }
725
726                     /* Is the current signature expired? */
727                     if(node->pkt->pkt.signature->flags.expired)
728                       {
729                         tty_printf(_("Your current signature on \"%s\"\n"
730                                      "has expired.\n"),user);
731
732                         if(cpr_get_answer_is_yes("sign_uid.replace_expired_okay",
733                                                  _("Do you want to issue a "
734                                                    "new signature to replace "
735                                                    "the expired one? (y/N) ")))
736                           {
737                             /* Mark these for later deletion.  We
738                                don't want to delete them here, just in
739                                case the replacement signature doesn't
740                                happen for some reason.  We only delete
741                                these after the replacement is already
742                                in place. */
743
744                             node->flag|=NODFLG_DELSIG;
745                             xfree(user);
746                             continue;
747                           }
748                       }
749
750                     if(!node->pkt->pkt.signature->flags.exportable && !local)
751                       {
752                         /* It's a local sig, and we want to make a
753                            exportable sig. */
754                         tty_printf(_("Your current signature on \"%s\"\n"
755                                      "is a local signature.\n"),user);
756
757                         if(cpr_get_answer_is_yes("sign_uid.local_promote_okay",
758                                                  _("Do you want to promote "
759                                                    "it to a full exportable "
760                                                    "signature? (y/N) ")))
761                           {
762                             /* Mark these for later deletion.  We
763                                don't want to delete them here, just in
764                                case the replacement signature doesn't
765                                happen for some reason.  We only delete
766                                these after the replacement is already
767                                in place. */
768
769                             node->flag|=NODFLG_DELSIG;
770                             xfree(user);
771                             continue;
772                           }
773                       }
774
775                     /* Fixme: see whether there is a revocation in which
776                      * case we should allow to sign it again. */
777                     if (!node->pkt->pkt.signature->flags.exportable && local)
778                       tty_printf(_(
779                               "\"%s\" was already locally signed by key %s\n"),
780                                  user,keystr_from_sk(sk));
781                     else
782                       tty_printf(_("\"%s\" was already signed by key %s\n"),
783                                  user,keystr_from_sk(sk));
784
785                     if(opt.expert
786                        && cpr_get_answer_is_yes("sign_uid.dupe_okay",
787                                                 _("Do you want to sign it "
788                                                   "again anyway? (y/N) ")))
789                       {
790                         /* Don't delete the old sig here since this is
791                            an --expert thing. */
792                         xfree(user);
793                         continue;
794                       }
795
796                     sprintf (buf, "%08lX%08lX",
797                              (ulong)sk->keyid[0], (ulong)sk->keyid[1] );
798                     write_status_text (STATUS_ALREADY_SIGNED, buf);
799                     uidnode->flag &= ~NODFLG_MARK_A; /* remove mark */
800
801                     xfree(user);
802                 }
803             }
804         }
805
806         /* check whether any uids are left for signing */
807         if( !count_uids_with_flag(keyblock, NODFLG_MARK_A) )
808           {
809             tty_printf(_("Nothing to sign with key %s\n"),keystr_from_sk(sk));
810             continue;
811           }
812
813         /* Ask whether we really should sign these user id(s) */
814         tty_printf("\n");
815         show_key_with_all_names( keyblock, 1, 0, 1, 0, 0 );
816         tty_printf("\n");
817
818         if(primary_pk->expiredate && !selfsig)
819           {
820             u32 now=make_timestamp();
821
822             if(primary_pk->expiredate<=now)
823               {
824                 tty_printf(_("This key has expired!"));
825
826                 if(opt.expert)
827                   {
828                     tty_printf("  ");
829                     if(!cpr_get_answer_is_yes("sign_uid.expired_okay",
830                                               _("Are you sure you still "
831                                                 "want to sign it? (y/N) ")))
832                       continue;
833                   }
834                 else
835                   {
836                     tty_printf(_("  Unable to sign.\n"));
837                     continue;
838                   }
839               }
840             else
841               {
842                 tty_printf(_("This key is due to expire on %s.\n"),
843                            expirestr_from_pk(primary_pk));
844
845                 if(opt.ask_cert_expire)
846                   {
847                     char *answer=cpr_get("sign_uid.expire",
848                                          _("Do you want your signature to "
849                                            "expire at the same time? (Y/n) "));
850                     if(answer_is_yes_no_default(answer,1))
851                       {
852                         /* This fixes the signature timestamp we're
853                            going to make as now.  This is so the
854                            expiration date is exactly correct, and not
855                            a few seconds off (due to the time it takes
856                            to answer the questions, enter the
857                            passphrase, etc). */
858                         timestamp=now;
859                         duration=primary_pk->expiredate-now;
860                         force_v4=1;
861                       }
862
863                     cpr_kill_prompt();
864                     xfree(answer);
865                   }
866               }
867           }
868
869         /* Only ask for duration if we haven't already set it to match
870            the expiration of the pk */
871         if(!duration && !selfsig)
872           {
873             if(opt.ask_cert_expire)
874               duration=ask_expire_interval(1,opt.def_cert_expire);
875             else
876               duration=parse_expire_string(opt.def_cert_expire);
877           }
878
879         if(duration)
880           force_v4=1;
881
882         /* Is --pgp2 on, it's a v3 key, all the sigs on the key are
883            currently v3 and we're about to sign it with a v4 sig?  If
884            so, danger! */
885         if(PGP2 && all_v3 &&
886            (sk->version>3 || force_v4) && primary_pk->version<=3)
887           {
888             tty_printf(_("You may not make an OpenPGP signature on a "
889                          "PGP 2.x key while in --pgp2 mode.\n"));
890             tty_printf(_("This would make the key unusable in PGP 2.x.\n"));
891
892             if(opt.expert)
893               {
894                 if(!cpr_get_answer_is_yes("sign_uid.v4_on_v3_okay",
895                                           _("Are you sure you still "
896                                             "want to sign it? (y/N) ")))
897                   continue;
898
899                 all_v3=0;
900               }
901             else
902               continue;
903           }
904
905         if(selfsig)
906           ;
907         else
908           {
909             if(opt.batch || !opt.ask_cert_level)
910               class=0x10+opt.def_cert_level;
911             else
912               {
913                 char *answer;
914
915                 tty_printf(_("How carefully have you verified the key you are "
916                              "about to sign actually belongs\nto the person "
917                              "named above?  If you don't know what to "
918                              "answer, enter \"0\".\n"));
919                 tty_printf("\n");
920                 tty_printf(_("   (0) I will not answer.%s\n"),
921                            opt.def_cert_level==0?" (default)":"");
922                 tty_printf(_("   (1) I have not checked at all.%s\n"),
923                            opt.def_cert_level==1?" (default)":"");
924                 tty_printf(_("   (2) I have done casual checking.%s\n"),
925                            opt.def_cert_level==2?" (default)":"");
926                 tty_printf(_("   (3) I have done very careful checking.%s\n"),
927                            opt.def_cert_level==3?" (default)":"");
928                 tty_printf("\n");
929
930                 while(class==0)
931                   {
932                     answer = cpr_get("sign_uid.class",_("Your selection? "
933                                         "(enter `?' for more information): "));
934                     if(answer[0]=='\0')
935                       class=0x10+opt.def_cert_level; /* Default */
936                     else if(ascii_strcasecmp(answer,"0")==0)
937                       class=0x10; /* Generic */
938                     else if(ascii_strcasecmp(answer,"1")==0)
939                       class=0x11; /* Persona */
940                     else if(ascii_strcasecmp(answer,"2")==0)
941                       class=0x12; /* Casual */
942                     else if(ascii_strcasecmp(answer,"3")==0)
943                       class=0x13; /* Positive */
944                     else
945                       tty_printf(_("Invalid selection.\n"));
946
947                     xfree(answer);
948                   }
949               }
950
951             if(trust)
952               trustsig_prompt(&trust_value,&trust_depth,&trust_regexp);
953           }
954
955         p=get_user_id_native(sk_keyid);
956         tty_printf(_("Are you sure that you want to sign this key with your\n"
957                      "key \"%s\" (%s)\n"),p,keystr_from_sk(sk));
958         xfree(p);
959
960         if(selfsig)
961           {
962             tty_printf("\n");
963             tty_printf(_("This will be a self-signature.\n"));
964
965             if( local )
966               {
967                 tty_printf("\n");
968                 tty_printf(
969                          _("WARNING: the signature will not be marked "
970                            "as non-exportable.\n"));
971               }
972
973             if( nonrevocable )
974               {
975                 tty_printf("\n");
976                 tty_printf(
977                          _("WARNING: the signature will not be marked "
978                            "as non-revocable.\n"));
979               }
980           }
981         else
982           {
983             if( local )
984               {
985                 tty_printf("\n");
986                 tty_printf(
987                      _("The signature will be marked as non-exportable.\n"));
988               }
989
990             if( nonrevocable )
991               {
992                 tty_printf("\n");
993                 tty_printf(
994                       _("The signature will be marked as non-revocable.\n"));
995               }
996
997             switch(class)
998               {
999               case 0x11:
1000                 tty_printf("\n");
1001                 tty_printf(_("I have not checked this key at all.\n"));
1002                 break;
1003
1004               case 0x12:
1005                 tty_printf("\n");
1006                 tty_printf(_("I have checked this key casually.\n"));
1007                 break;
1008
1009               case 0x13:
1010                 tty_printf("\n");
1011                 tty_printf(_("I have checked this key very carefully.\n"));
1012                 break;
1013               }
1014           }
1015
1016         tty_printf("\n");
1017
1018         if( opt.batch && opt.answer_yes )
1019           ;
1020         else if( !cpr_get_answer_is_yes("sign_uid.okay",
1021                                         _("Really sign? (y/N) ")) )
1022             continue;
1023
1024         /* now we can sign the user ids */
1025       reloop: /* (must use this, because we are modifing the list) */
1026         primary_pk = NULL;
1027         for( node=keyblock; node; node = node->next ) {
1028             if( node->pkt->pkttype == PKT_PUBLIC_KEY )
1029                 primary_pk = node->pkt->pkt.public_key;
1030             else if( node->pkt->pkttype == PKT_USER_ID
1031                      && (node->flag & NODFLG_MARK_A) ) {
1032                 PACKET *pkt;
1033                 PKT_signature *sig;
1034                 struct sign_attrib attrib;
1035
1036                 assert( primary_pk );
1037                 memset( &attrib, 0, sizeof attrib );
1038                 attrib.non_exportable = local;
1039                 attrib.non_revocable = nonrevocable;
1040                 attrib.trust_depth = trust_depth;
1041                 attrib.trust_value = trust_value;
1042                 attrib.trust_regexp = trust_regexp;
1043                 node->flag &= ~NODFLG_MARK_A;
1044
1045                 /* we force creation of a v4 signature for local
1046                  * signatures, otherwise we would not generate the
1047                  * subpacket with v3 keys and the signature becomes
1048                  * exportable */
1049
1050                 if(selfsig)
1051                   rc = make_keysig_packet( &sig, primary_pk,
1052                                            node->pkt->pkt.user_id,
1053                                            NULL,
1054                                            sk,
1055                                            0x13, 0, force_v4?4:0, 0, 0,
1056                                            keygen_add_std_prefs, primary_pk);
1057                 else
1058                   rc = make_keysig_packet( &sig, primary_pk,
1059                                            node->pkt->pkt.user_id,
1060                                            NULL,
1061                                            sk,
1062                                            class, 0, force_v4?4:0,
1063                                            timestamp, duration,
1064                                            sign_mk_attrib, &attrib );
1065                 if( rc ) {
1066                     log_error(_("signing failed: %s\n"), g10_errstr(rc));
1067                     goto leave;
1068                 }
1069
1070                 *ret_modified = 1; /* we changed the keyblock */
1071                 update_trust = 1;
1072
1073                 pkt = xmalloc_clear( sizeof *pkt );
1074                 pkt->pkttype = PKT_SIGNATURE;
1075                 pkt->pkt.signature = sig;
1076                 insert_kbnode( node, new_kbnode(pkt), PKT_SIGNATURE );
1077                 goto reloop;
1078             }
1079         }
1080
1081         /* Delete any sigs that got promoted */
1082         for( node=keyblock; node; node = node->next )
1083           if( node->flag & NODFLG_DELSIG)
1084             delete_kbnode(node);
1085     } /* end loop over signators */
1086
1087   leave:
1088     release_sk_list( sk_list );
1089     if( sk )
1090         free_secret_key(sk);
1091     return rc;
1092 }
1093
1094
1095
1096 /****************
1097  * Change the passphrase of the primary and all secondary keys.
1098  * We use only one passphrase for all keys.
1099  */
1100 static int
1101 change_passphrase( KBNODE keyblock )
1102 {
1103     int rc = 0;
1104     int changed=0;
1105     KBNODE node;
1106     PKT_secret_key *sk;
1107     char *passphrase = NULL;
1108     int no_primary_secrets = 0;
1109     int any;
1110
1111     node = find_kbnode( keyblock, PKT_SECRET_KEY );
1112     if( !node ) {
1113         log_error("Oops; secret key not found anymore!\n");
1114         goto leave;
1115     }
1116     sk = node->pkt->pkt.secret_key;
1117
1118     for (any = 0, node=keyblock; node; node = node->next) {
1119         if (node->pkt->pkttype == PKT_SECRET_KEY 
1120             || node->pkt->pkttype == PKT_SECRET_SUBKEY) {
1121             PKT_secret_key *tmpsk = node->pkt->pkt.secret_key;
1122             if (!(tmpsk->is_protected
1123                   && (tmpsk->protect.s2k.mode == 1001 
1124                       || tmpsk->protect.s2k.mode == 1002))) {
1125                 any = 1;
1126                 break;
1127             }
1128         }
1129     }
1130     if (!any) {
1131         tty_printf (_("Key has only stub or on-card key items - "
1132                       "no passphrase to change.\n"));
1133         goto leave;
1134     }
1135         
1136     /* See how to handle this key.  */
1137     switch( is_secret_key_protected( sk ) ) {
1138       case -1:
1139         rc = G10ERR_PUBKEY_ALGO;
1140         break;
1141       case 0:
1142         tty_printf(_("This key is not protected.\n"));
1143         break;
1144       default:
1145         if( sk->protect.s2k.mode == 1001 ) {
1146             tty_printf(_("Secret parts of primary key are not available.\n"));
1147             no_primary_secrets = 1;
1148         }
1149         else if( sk->protect.s2k.mode == 1002 ) {
1150             tty_printf(_("Secret parts of primary key are stored on-card.\n"));
1151             no_primary_secrets = 1;
1152         }
1153         else {
1154             u32 keyid[2];
1155
1156             tty_printf(_("Key is protected.\n"));
1157             
1158             /* Clear the passphrase cache so that the user is required
1159                to enter the old passphrase.  */
1160             keyid_from_sk (sk, keyid);
1161             passphrase_clear_cache (keyid, NULL, 0);
1162
1163             rc = check_secret_key( sk, 0 );
1164             if( !rc )
1165                 passphrase = get_last_passphrase();
1166         }
1167         break;
1168     }
1169
1170     /* Unprotect all subkeys (use the supplied passphrase or ask)*/
1171     for(node=keyblock; !rc && node; node = node->next ) {
1172         if( node->pkt->pkttype == PKT_SECRET_SUBKEY ) {
1173             PKT_secret_key *subsk = node->pkt->pkt.secret_key;
1174             if ( !(subsk->is_protected
1175                    && (subsk->protect.s2k.mode == 1001 
1176                        || subsk->protect.s2k.mode == 1002))) {
1177                 set_next_passphrase( passphrase );
1178                 rc = check_secret_key( subsk, 0 );
1179                 if( !rc && !passphrase )
1180                     passphrase = get_last_passphrase();
1181             }
1182         }
1183     }
1184
1185     if( rc )
1186         tty_printf(_("Can't edit this key: %s\n"), g10_errstr(rc));
1187     else {
1188         DEK *dek = NULL;
1189         STRING2KEY *s2k = xmalloc_secure( sizeof *s2k );
1190         const char *errtext = NULL;
1191
1192         tty_printf(_("Enter the new passphrase for this secret key.\n\n") );
1193
1194         set_next_passphrase( NULL );
1195         for(;;) {
1196             int canceled;
1197
1198             s2k->mode = opt.s2k_mode;
1199             s2k->hash_algo = S2K_DIGEST_ALGO;
1200             dek = passphrase_to_dek( NULL, 0, opt.s2k_cipher_algo,
1201                                      s2k, 2, errtext, &canceled);
1202             if (!dek && canceled) {
1203                 rc = GPG_ERR_CANCELED;
1204                 break;
1205             }
1206             else if( !dek ) {
1207                 errtext = N_("passphrase not correctly repeated; try again");
1208                 tty_printf ("%s.\n", _(errtext));
1209             }
1210             else if( !dek->keylen ) {
1211                 rc = 0;
1212                 tty_printf(_( "You don't want a passphrase -"
1213                             " this is probably a *bad* idea!\n\n"));
1214                 if( cpr_get_answer_is_yes("change_passwd.empty.okay",
1215                                _("Do you really want to do this? (y/N) ")))
1216                   {
1217                     changed++;
1218                     break;
1219                   }
1220             }
1221             else { /* okay */
1222                 rc = 0;
1223                 if( !no_primary_secrets ) {
1224                     sk->protect.algo = dek->algo;
1225                     sk->protect.s2k = *s2k;
1226                     rc = protect_secret_key( sk, dek );
1227                 }
1228                 for(node=keyblock; !rc && node; node = node->next ) {
1229                     if( node->pkt->pkttype == PKT_SECRET_SUBKEY ) {
1230                         PKT_secret_key *subsk = node->pkt->pkt.secret_key;
1231                         if ( !(subsk->is_protected
1232                                && (subsk->protect.s2k.mode == 1001 
1233                                    || subsk->protect.s2k.mode == 1002))) {
1234                             subsk->protect.algo = dek->algo;
1235                             subsk->protect.s2k = *s2k;
1236                             rc = protect_secret_key( subsk, dek );
1237                         }
1238                     }
1239                 }
1240                 if( rc )
1241                     log_error("protect_secret_key failed: %s\n",
1242                               g10_errstr(rc) );
1243                 else
1244                   {
1245                     u32 keyid[2];
1246                     
1247                     /* Clear the cahce again so that the user is
1248                        required to enter the new passphrase at the
1249                        next operation.  */
1250                     keyid_from_sk (sk, keyid);
1251                     passphrase_clear_cache (keyid, NULL, 0);
1252
1253                     changed++;
1254                   }
1255                 break;
1256             }
1257         }
1258         xfree(s2k);
1259         xfree(dek);
1260     }
1261
1262   leave:
1263     xfree( passphrase );
1264     set_next_passphrase( NULL );
1265     return changed && !rc;
1266 }
1267
1268
1269 /****************
1270  * There are some keys out (due to a bug in gnupg), where the sequence
1271  * of the packets is wrong.  This function fixes that.
1272  * Returns: true if the keyblock has been fixed.
1273  *
1274  * Note:  This function does not work if there is more than one user ID.
1275  */
1276 static int
1277 fix_keyblock( KBNODE keyblock )
1278 {
1279     KBNODE node, last, subkey;
1280     int fixed=0;
1281
1282     /* locate key signatures of class 0x10..0x13 behind sub key packets */
1283     for( subkey=last=NULL, node = keyblock; node;
1284                                             last=node, node = node->next ) {
1285         switch( node->pkt->pkttype ) {
1286           case PKT_PUBLIC_SUBKEY:
1287           case PKT_SECRET_SUBKEY:
1288             if( !subkey )
1289                 subkey = last; /* actually it is the one before the subkey */
1290             break;
1291           case PKT_SIGNATURE:
1292             if( subkey ) {
1293                 PKT_signature *sig = node->pkt->pkt.signature;
1294                 if( sig->sig_class >= 0x10 && sig->sig_class <= 0x13 ) {
1295                     log_info(_(
1296                         "moving a key signature to the correct place\n"));
1297                     last->next = node->next;
1298                     node->next = subkey->next;
1299                     subkey->next = node;
1300                     node = last;
1301                     fixed=1;
1302                 }
1303             }
1304             break;
1305           default: break;
1306         }
1307     }
1308
1309     return fixed;
1310 }
1311
1312 static int
1313 parse_sign_type(const char *str,int *localsig,int *nonrevokesig,int *trustsig)
1314 {
1315   const char *p=str;
1316
1317   while(*p)
1318     {
1319       if(ascii_strncasecmp(p,"l",1)==0)
1320         {
1321           *localsig=1;
1322           p++;
1323         }
1324       else if(ascii_strncasecmp(p,"nr",2)==0)
1325         {
1326           *nonrevokesig=1;
1327           p+=2;
1328         }
1329       else if(ascii_strncasecmp(p,"t",1)==0)
1330         {
1331           *trustsig=1;
1332           p++;
1333         }
1334       else
1335         return 0;
1336     }
1337
1338   return 1;
1339 }
1340
1341 \f
1342 /****************
1343  * Menu driven key editor.  If seckey_check is true, then a secret key
1344  * that matches username will be looked for.  If it is false, not all
1345  * commands will be available.
1346  *
1347  * Note: to keep track of some selection we use node->mark MARKBIT_xxxx.
1348  */
1349
1350 /* Need an SK for this command */
1351 #define KEYEDIT_NEED_SK 1
1352 /* Cannot be viewing the SK for this command */
1353 #define KEYEDIT_NOT_SK  2
1354 /* Must be viewing the SK for this command */
1355 #define KEYEDIT_ONLY_SK 4
1356 /* Match the tail of the string */
1357 #define KEYEDIT_TAIL_MATCH 8
1358
1359 enum cmdids
1360   {
1361     cmdNONE = 0,
1362     cmdQUIT, cmdHELP, cmdFPR, cmdLIST, cmdSELUID, cmdCHECK, cmdSIGN,
1363     cmdREVSIG, cmdREVKEY, cmdREVUID, cmdDELSIG, cmdPRIMARY, cmdDEBUG,
1364     cmdSAVE, cmdADDUID, cmdADDPHOTO, cmdDELUID, cmdADDKEY, cmdDELKEY,
1365     cmdADDREVOKER, cmdTOGGLE, cmdSELKEY, cmdPASSWD, cmdTRUST, cmdPREF,
1366     cmdEXPIRE, cmdBACKSIGN, cmdENABLEKEY, cmdDISABLEKEY, cmdSHOWPREF,
1367     cmdSETPREF, cmdPREFKS, cmdNOTATION, cmdINVCMD, cmdSHOWPHOTO, cmdUPDTRUST,
1368     cmdCHKTRUST, cmdADDCARDKEY, cmdKEYTOCARD, cmdBKUPTOCARD, cmdCLEAN,
1369     cmdMINIMIZE, cmdNOP
1370   };
1371
1372 static struct
1373 {
1374   const char *name;
1375   enum cmdids id;
1376   int flags;
1377   const char *desc;
1378 } cmds[] =
1379   { 
1380     { "quit"    , cmdQUIT      , 0, N_("quit this menu") },
1381     { "q"       , cmdQUIT      , 0, NULL   },
1382     { "save"    , cmdSAVE      , 0, N_("save and quit") },
1383     { "help"    , cmdHELP      , 0, N_("show this help") },
1384     { "?"       , cmdHELP      , 0, NULL   },
1385     { "fpr"     , cmdFPR       , 0, N_("show key fingerprint") },
1386     { "list"    , cmdLIST      , 0, N_("list key and user IDs") },
1387     { "l"       , cmdLIST      , 0, NULL   },
1388     { "uid"     , cmdSELUID    , 0, N_("select user ID N") },
1389     { "key"     , cmdSELKEY    , 0, N_("select subkey N") },
1390     { "check"   , cmdCHECK     , 0, N_("check signatures") },
1391     { "c"       , cmdCHECK     , 0, NULL },
1392     { "cross-certify", cmdBACKSIGN  , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK, NULL },
1393     { "backsign", cmdBACKSIGN  , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK, NULL },
1394     { "sign"    , cmdSIGN      , KEYEDIT_NOT_SK|KEYEDIT_TAIL_MATCH,
1395       N_("sign selected user IDs [* see below for related commands]") },
1396     { "s"       , cmdSIGN      , KEYEDIT_NOT_SK, NULL },
1397     /* "lsign" and friends will never match since "sign" comes first
1398        and it is a tail match.  They are just here so they show up in
1399        the help menu. */
1400     { "lsign"   , cmdNOP       , 0, N_("sign selected user IDs locally") },
1401     { "tsign"   , cmdNOP       , 0,
1402       N_("sign selected user IDs with a trust signature") },
1403     { "nrsign"  , cmdNOP       , 0,
1404       N_("sign selected user IDs with a non-revocable signature") },
1405
1406     { "debug"   , cmdDEBUG     , 0, NULL },
1407     { "adduid"  , cmdADDUID    , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK,
1408       N_("add a user ID") },
1409     { "addphoto", cmdADDPHOTO  , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK,
1410       N_("add a photo ID") },
1411     { "deluid"  , cmdDELUID    , KEYEDIT_NOT_SK,
1412       N_("delete selected user IDs") },
1413     /* delphoto is really deluid in disguise */
1414     { "delphoto", cmdDELUID    , KEYEDIT_NOT_SK, NULL },
1415
1416     { "addkey"  , cmdADDKEY    , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK,
1417       N_("add a subkey") },
1418
1419 #ifdef ENABLE_CARD_SUPPORT
1420     { "addcardkey", cmdADDCARDKEY , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK,
1421       N_("add a key to a smartcard") },
1422     { "keytocard", cmdKEYTOCARD , KEYEDIT_NEED_SK|KEYEDIT_ONLY_SK, 
1423       N_("move a key to a smartcard")},
1424     { "bkuptocard", cmdBKUPTOCARD , KEYEDIT_NEED_SK|KEYEDIT_ONLY_SK, 
1425       N_("move a backup key to a smartcard")},
1426 #endif /*ENABLE_CARD_SUPPORT*/
1427
1428     { "delkey"  , cmdDELKEY    , KEYEDIT_NOT_SK,
1429       N_("delete selected subkeys") },
1430     { "addrevoker",cmdADDREVOKER,KEYEDIT_NOT_SK|KEYEDIT_NEED_SK,
1431       N_("add a revocation key") },
1432     { "delsig"  , cmdDELSIG    , KEYEDIT_NOT_SK,
1433       N_("delete signatures from the selected user IDs") },
1434     { "expire"  , cmdEXPIRE    , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK,
1435       N_("change the expiration date for the key or selected subkeys") },
1436     { "primary" , cmdPRIMARY   , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK,
1437       N_("flag the selected user ID as primary")},
1438     { "toggle"  , cmdTOGGLE    , KEYEDIT_NEED_SK,
1439       N_("toggle between the secret and public key listings") },
1440     { "t"       , cmdTOGGLE    , KEYEDIT_NEED_SK, NULL },
1441     { "pref"    , cmdPREF      , KEYEDIT_NOT_SK,
1442       N_("list preferences (expert)")},
1443     { "showpref", cmdSHOWPREF  , KEYEDIT_NOT_SK,
1444       N_("list preferences (verbose)") },
1445     { "setpref" , cmdSETPREF   , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK,
1446       N_("set preference list for the selected user IDs") },
1447     /* Alias */
1448     { "updpref" , cmdSETPREF   , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK, NULL },
1449
1450     { "keyserver",cmdPREFKS    , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK,
1451       N_("set the preferred keyserver URL for the selected user IDs")},
1452     { "notation", cmdNOTATION  , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK,
1453       N_("set a notation for the selected user IDs")},
1454     { "passwd"  , cmdPASSWD    , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK,
1455       N_("change the passphrase") },
1456     /* Alias */
1457     { "password", cmdPASSWD    , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK, NULL },
1458
1459     { "trust"   , cmdTRUST     , KEYEDIT_NOT_SK, N_("change the ownertrust") },
1460     { "revsig"  , cmdREVSIG    , KEYEDIT_NOT_SK,
1461       N_("revoke signatures on the selected user IDs") },
1462     { "revuid"  , cmdREVUID    , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK,
1463       N_("revoke selected user IDs") },
1464     /* Alias */
1465     { "revphoto", cmdREVUID    , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK, NULL },
1466
1467     { "revkey"  , cmdREVKEY    , KEYEDIT_NOT_SK|KEYEDIT_NEED_SK,
1468       N_("revoke key or selected subkeys") },
1469     { "enable"  , cmdENABLEKEY , KEYEDIT_NOT_SK, N_("enable key") },
1470     { "disable" , cmdDISABLEKEY, KEYEDIT_NOT_SK, N_("disable key") },
1471     { "showphoto",cmdSHOWPHOTO , 0, N_("show selected photo IDs") },
1472     { "clean",    cmdCLEAN     , KEYEDIT_NOT_SK,
1473       N_("compact unusable user IDs and remove unusable signatures from key")},
1474     { "minimize", cmdMINIMIZE  , KEYEDIT_NOT_SK,
1475       N_("compact unusable user IDs and remove all signatures from key") },
1476     { NULL, cmdNONE, 0, NULL }
1477   };
1478
1479 #ifdef HAVE_LIBREADLINE
1480
1481 /* These two functions are used by readline for command completion. */
1482
1483 static char *
1484 command_generator(const char *text,int state)
1485 {
1486   static int list_index,len;
1487   const char *name;
1488
1489   /* If this is a new word to complete, initialize now.  This includes
1490      saving the length of TEXT for efficiency, and initializing the
1491      index variable to 0. */
1492   if(!state)
1493     {
1494       list_index=0;
1495       len=strlen(text);
1496     }
1497
1498   /* Return the next partial match */
1499   while((name=cmds[list_index].name))
1500     {
1501       /* Only complete commands that have help text */
1502       if(cmds[list_index++].desc && strncmp(name,text,len)==0)
1503         return strdup(name);
1504     }
1505
1506   return NULL;
1507 }
1508
1509 static char **
1510 keyedit_completion(const char *text, int start, int end)
1511 {
1512   /* If we are at the start of a line, we try and command-complete.
1513      If not, just do nothing for now. */
1514
1515   (void)end;
1516
1517   if(start==0)
1518     return rl_completion_matches(text,command_generator);
1519
1520   rl_attempted_completion_over=1;
1521
1522   return NULL;
1523 }
1524 #endif /* HAVE_LIBREADLINE */
1525
1526
1527 void
1528 keyedit_menu( const char *username, strlist_t locusr,
1529               strlist_t commands, int quiet, int seckey_check )
1530 {
1531     enum cmdids cmd = 0;
1532     int rc = 0;
1533     KBNODE keyblock = NULL;
1534     KEYDB_HANDLE kdbhd = NULL;
1535     KBNODE sec_keyblock = NULL;
1536     KEYDB_HANDLE sec_kdbhd = NULL;
1537     KBNODE cur_keyblock;
1538     char *answer = NULL;
1539     int redisplay = 1;
1540     int modified = 0;
1541     int sec_modified = 0;
1542     int toggle;
1543     int have_commands = !!commands;
1544
1545     if ( opt.command_fd != -1 )
1546         ;
1547     else if( opt.batch && !have_commands )
1548       {
1549         log_error(_("can't do this in batch mode\n"));
1550         goto leave;
1551       }
1552
1553 #ifdef HAVE_W32_SYSTEM
1554     /* Due to Windows peculiarities we need to make sure that the
1555        trustdb stale check is done before we open another file
1556        (i.e. by searching for a key).  In theory we could make sure
1557        that the files are closed after use but the open/close caches
1558        inhibits that and flushing the cache right before the stale
1559        check is not easy to implement.  Thus we take the easy way out
1560        and run the stale check as early as possible.  Note, that for
1561        non- W32 platforms it is run indirectly trough a call to
1562        get_validity ().  */
1563     check_trustdb_stale ();
1564 #endif
1565
1566     /* Get the public key */
1567     rc = get_pubkey_byname (NULL, NULL, username, &keyblock, &kdbhd, 1, 1);
1568     if( rc )
1569         goto leave;
1570     if( fix_keyblock( keyblock ) )
1571         modified++;
1572     if( collapse_uids( &keyblock ) )
1573         modified++;
1574     reorder_keyblock(keyblock);
1575     /* We modified the keyblock, so let's make sure the flags are
1576        right. */
1577     if (modified)
1578       merge_keys_and_selfsig (keyblock);
1579
1580     if(seckey_check)
1581       {/* see whether we have a matching secret key */
1582         PKT_public_key *pk = keyblock->pkt->pkt.public_key;
1583
1584         sec_kdbhd = keydb_new (1);
1585         {
1586             byte afp[MAX_FINGERPRINT_LEN];
1587             size_t an;
1588
1589             fingerprint_from_pk (pk, afp, &an);
1590             while (an < MAX_FINGERPRINT_LEN) 
1591                 afp[an++] = 0;
1592             rc = keydb_search_fpr (sec_kdbhd, afp);
1593         }
1594         if (!rc)
1595           {
1596             rc = keydb_get_keyblock (sec_kdbhd, &sec_keyblock);
1597             if (rc)
1598               {
1599                 log_error (_("error reading secret keyblock \"%s\": %s\n"),
1600                            username, g10_errstr(rc));
1601               }
1602             else
1603               {
1604                 merge_keys_and_selfsig( sec_keyblock );
1605                 if( fix_keyblock( sec_keyblock ) )
1606                   sec_modified++;
1607               }
1608           }
1609
1610         if (rc) {
1611             sec_keyblock = NULL;
1612             keydb_release (sec_kdbhd); sec_kdbhd = NULL;
1613             rc = 0;
1614         }
1615
1616         if( sec_keyblock && !quiet )
1617           tty_printf(_("Secret key is available.\n"));
1618     }
1619
1620     toggle = 0;
1621     cur_keyblock = keyblock;
1622     for(;;) { /* main loop */
1623         int i, arg_number, photo;
1624         const char *arg_string = "";
1625         char *p;
1626         PKT_public_key *pk=keyblock->pkt->pkt.public_key;
1627
1628         tty_printf("\n");
1629
1630         if( redisplay && !quiet )
1631           {
1632             show_key_with_all_names( cur_keyblock, 0, 1, 0, 1, 0 );
1633             tty_printf("\n");
1634             redisplay = 0;
1635           }
1636         do {
1637             xfree(answer);
1638             if( have_commands ) {
1639                 if( commands ) {
1640                     answer = xstrdup( commands->d );
1641                     commands = commands->next;
1642                 }
1643                 else if( opt.batch ) {
1644                     answer = xstrdup("quit");
1645                 }
1646                 else
1647                     have_commands = 0;
1648             }
1649             if( !have_commands )
1650               {
1651 #ifdef HAVE_LIBREADLINE
1652                 tty_enable_completion(keyedit_completion);
1653 #endif
1654                 answer = cpr_get_no_help("keyedit.prompt", _("Command> "));
1655                 cpr_kill_prompt();
1656                 tty_disable_completion();
1657               }
1658             trim_spaces(answer);
1659         } while( *answer == '#' );
1660
1661         arg_number = 0; /* Yes, here is the init which egcc complains about */
1662         photo = 0; /* This too */
1663         if( !*answer )
1664             cmd = cmdLIST;
1665         else if( *answer == CONTROL_D )
1666             cmd = cmdQUIT;
1667         else if( digitp(answer ) ) {
1668             cmd = cmdSELUID;
1669             arg_number = atoi(answer);
1670         }
1671         else {
1672             if( (p=strchr(answer,' ')) ) {
1673                 *p++ = 0;
1674                 trim_spaces(answer);
1675                 trim_spaces(p);
1676                 arg_number = atoi(p);
1677                 arg_string = p;
1678             }
1679
1680             for(i=0; cmds[i].name; i++ )
1681               {
1682                 if(cmds[i].flags & KEYEDIT_TAIL_MATCH)
1683                   {
1684                     size_t l=strlen(cmds[i].name);
1685                     size_t a=strlen(answer);
1686                     if(a>=l)
1687                       {
1688                         if(ascii_strcasecmp(&answer[a-l],cmds[i].name)==0)
1689                           {
1690                             answer[a-l]='\0';
1691                             break;
1692                           }
1693                       }
1694                   }
1695                 else if( !ascii_strcasecmp( answer, cmds[i].name ) )
1696                   break;
1697               }
1698             if((cmds[i].flags & KEYEDIT_NEED_SK) && !sec_keyblock )
1699               {
1700                 tty_printf(_("Need the secret key to do this.\n"));
1701                 cmd = cmdNOP;
1702               }
1703             else if(((cmds[i].flags & KEYEDIT_NOT_SK) && sec_keyblock
1704                      && toggle)
1705                     ||((cmds[i].flags & KEYEDIT_ONLY_SK) && sec_keyblock
1706                        && !toggle))
1707               {
1708                 tty_printf(_("Please use the command \"toggle\" first.\n"));
1709                 cmd = cmdNOP;
1710               }
1711             else
1712               cmd = cmds[i].id;
1713         }
1714         switch( cmd )
1715           {
1716           case cmdHELP:
1717             for(i=0; cmds[i].name; i++ )
1718               {
1719                 if((cmds[i].flags & KEYEDIT_NEED_SK) && !sec_keyblock )
1720                   ; /* skip if we do not have the secret key */
1721                 else if( cmds[i].desc )
1722                   tty_printf("%-11s %s\n", cmds[i].name, _(cmds[i].desc) );
1723               }
1724
1725             tty_printf("\n");
1726             tty_printf(_(
1727 "* The `sign' command may be prefixed with an `l' for local "
1728 "signatures (lsign),\n"
1729 "  a `t' for trust signatures (tsign), an `nr' for non-revocable signatures\n"
1730 "  (nrsign), or any combination thereof (ltsign, tnrsign, etc.).\n"));
1731
1732             break;
1733
1734           case cmdLIST:
1735             redisplay = 1;
1736             break;
1737
1738           case cmdFPR:
1739             show_key_and_fingerprint( keyblock );
1740             break;
1741
1742           case cmdSELUID:
1743             if(strlen(arg_string)==NAMEHASH_LEN*2)
1744               redisplay=menu_select_uid_namehash(cur_keyblock,arg_string);
1745             else
1746               {
1747                 if (*arg_string == '*' 
1748                     && (!arg_string[1] || spacep (arg_string+1)))
1749                   arg_number = -1; /* Select all. */
1750                 redisplay = menu_select_uid (cur_keyblock, arg_number);
1751               }
1752             break;
1753
1754           case cmdSELKEY:
1755             {
1756               if (*arg_string == '*' 
1757                   && (!arg_string[1] || spacep (arg_string+1)))
1758                 arg_number = -1; /* Select all. */
1759               if (menu_select_key( cur_keyblock, arg_number))
1760                 redisplay = 1;
1761             }
1762             break;
1763
1764           case cmdCHECK:
1765             /* we can only do this with the public key becuase the
1766              * check functions can't cope with secret keys and it
1767              * is questionable whether this would make sense at all */
1768             check_all_keysigs( keyblock, count_selected_uids(keyblock) );
1769             break;
1770
1771           case cmdSIGN: /* sign (only the public key) */
1772             {
1773               int localsig=0,nonrevokesig=0,trustsig=0,interactive=0;
1774
1775               if( pk->is_revoked )
1776                 {
1777                   tty_printf(_("Key is revoked."));
1778
1779                   if(opt.expert)
1780                     {
1781                       tty_printf("  ");
1782                       if(!cpr_get_answer_is_yes("keyedit.sign_revoked.okay",
1783                                                 _("Are you sure you still want"
1784                                                   " to sign it? (y/N) ")))
1785                         break;
1786                     }
1787                   else
1788                     {
1789                       tty_printf(_("  Unable to sign.\n"));
1790                       break;
1791                     }
1792                 }
1793
1794               if(count_uids(keyblock) > 1 && !count_selected_uids(keyblock)
1795                  && !cpr_get_answer_is_yes("keyedit.sign_all.okay",
1796                                            _("Really sign all user IDs?"
1797                                              " (y/N) ")))
1798                 {
1799                   if(opt.interactive)
1800                     interactive=1;
1801                   else
1802                     {
1803                       tty_printf(_("Hint: Select the user IDs to sign\n"));
1804                       have_commands = 0;
1805                       break;
1806                     }
1807
1808                 }
1809               /* What sort of signing are we doing? */
1810               if(!parse_sign_type(answer,&localsig,&nonrevokesig,&trustsig))
1811                 {
1812                   tty_printf(_("Unknown signature type `%s'\n"),answer);
1813                   break;
1814                 }
1815
1816               sign_uids(keyblock, locusr, &modified,
1817                         localsig, nonrevokesig, trustsig, interactive);
1818             }
1819             break;
1820
1821           case cmdDEBUG:
1822             dump_kbnode( cur_keyblock );
1823             break;
1824
1825           case cmdTOGGLE:
1826             toggle = !toggle;
1827             cur_keyblock = toggle? sec_keyblock : keyblock;
1828             redisplay = 1;
1829             break;
1830
1831           case cmdADDPHOTO:
1832             if (RFC2440 || RFC1991 || PGP2)
1833               {
1834                 tty_printf(
1835                    _("This command is not allowed while in %s mode.\n"),
1836                    compliance_option_string());
1837                 break;
1838               }
1839             photo=1;
1840             /* fall through */
1841
1842           case cmdADDUID:
1843             if( menu_adduid( keyblock, sec_keyblock, photo, arg_string ) )
1844               {
1845                 update_trust = 1;
1846                 redisplay = 1;
1847                 sec_modified = modified = 1;
1848                 merge_keys_and_selfsig( sec_keyblock );
1849                 merge_keys_and_selfsig( keyblock );
1850               }
1851             break;
1852
1853           case cmdDELUID: {
1854                 int n1;
1855
1856                 if( !(n1=count_selected_uids(keyblock)) )
1857                     tty_printf(_("You must select at least one user ID.\n"));
1858                 else if( real_uids_left(keyblock) < 1 )
1859                     tty_printf(_("You can't delete the last user ID!\n"));
1860                 else if( cpr_get_answer_is_yes("keyedit.remove.uid.okay",
1861                 n1 > 1? _("Really remove all selected user IDs? (y/N) ")
1862                             : _("Really remove this user ID? (y/N) ")
1863                        ) ) {
1864                     menu_deluid( keyblock, sec_keyblock );
1865                     redisplay = 1;
1866                     modified = 1;
1867                     if( sec_keyblock )
1868                        sec_modified = 1;
1869                 }
1870             }
1871             break;
1872
1873           case cmdDELSIG: {
1874                 int n1;
1875
1876                 if( !(n1=count_selected_uids(keyblock)) )
1877                     tty_printf(_("You must select at least one user ID.\n"));
1878                 else if( menu_delsig( keyblock ) ) {
1879                     /* no redisplay here, because it may scroll away some
1880                      * status output of delsig */
1881                     modified = 1;
1882                 }
1883             }
1884             break;
1885
1886           case cmdADDKEY:
1887             if( generate_subkeypair( keyblock, sec_keyblock ) ) {
1888                 redisplay = 1;
1889                 sec_modified = modified = 1;
1890                 merge_keys_and_selfsig( sec_keyblock );
1891                 merge_keys_and_selfsig( keyblock );
1892             }
1893             break;
1894
1895 #ifdef ENABLE_CARD_SUPPORT
1896           case cmdADDCARDKEY:
1897             if (card_generate_subkey (keyblock, sec_keyblock)) {
1898                 redisplay = 1;
1899                 sec_modified = modified = 1;
1900                 merge_keys_and_selfsig( sec_keyblock );
1901                 merge_keys_and_selfsig( keyblock );
1902             }
1903             break;
1904
1905         case cmdKEYTOCARD:
1906           {
1907             KBNODE node=NULL;
1908             switch ( count_selected_keys (sec_keyblock) )
1909               {
1910               case 0:
1911                 if (cpr_get_answer_is_yes 
1912                     ("keyedit.keytocard.use_primary",
1913                      /* TRANSLATORS: Please take care: This is about
1914                         moving the key and not about removing it.  */
1915                      _("Really move the primary key? (y/N) ")))
1916                   node = sec_keyblock;
1917                 break;
1918               case 1:
1919                 for (node = sec_keyblock; node; node = node->next )
1920                   {
1921                     if (node->pkt->pkttype == PKT_SECRET_SUBKEY 
1922                         && node->flag & NODFLG_SELKEY)
1923                       break;
1924                   }
1925                 break;
1926               default:
1927                 tty_printf(_("You must select exactly one key.\n"));
1928                 break;
1929               }
1930             if (node)
1931               {
1932                 PKT_public_key *xxpk = find_pk_from_sknode (keyblock, node);
1933                 if (card_store_subkey (node, xxpk?xxpk->pubkey_usage:0))
1934                   {
1935                     redisplay = 1;
1936                     sec_modified = 1;
1937                   }
1938               }
1939           }
1940           break;
1941
1942         case cmdBKUPTOCARD:
1943           {
1944             /* Ask for a filename, check whether this is really a
1945                backup key as generated by the card generation, parse
1946                that key and store it on card. */
1947             KBNODE node;
1948             const char *fname;
1949             PACKET *pkt;
1950             IOBUF a;
1951
1952             fname = arg_string;
1953             if (!*fname)
1954               {
1955                 tty_printf (_("Command expects a filename argument\n"));
1956                 break;
1957               }
1958
1959             /* Open that file.  */
1960             a = iobuf_open (fname);
1961             if (a && is_secured_file (iobuf_get_fd (a)))
1962               {
1963                 iobuf_close (a);
1964                 a = NULL;
1965                 errno = EPERM;
1966               }
1967             if (!a)
1968               {
1969                 tty_printf (_("Can't open `%s': %s\n"),
1970                             fname, strerror(errno));
1971                 break;
1972               }
1973             
1974             /* Parse and check that file.  */
1975             pkt = xmalloc (sizeof *pkt);
1976             init_packet (pkt);
1977             rc = parse_packet (a, pkt);
1978             iobuf_close (a);
1979             iobuf_ioctl (NULL, 2, 0, (char*)fname); /* (invalidate cache).  */
1980             if (!rc 
1981                 && pkt->pkttype != PKT_SECRET_KEY 
1982                 && pkt->pkttype != PKT_SECRET_SUBKEY)
1983               rc = G10ERR_NO_SECKEY;
1984             if (rc)
1985               {
1986                 tty_printf(_("Error reading backup key from `%s': %s\n"),
1987                            fname, g10_errstr (rc));
1988                 free_packet (pkt);
1989                 xfree (pkt);
1990                 break;
1991               }
1992             node = new_kbnode (pkt);
1993
1994             /* Store it.  */
1995             if (card_store_subkey (node, 0))
1996               {
1997                 redisplay = 1;
1998                 sec_modified = 1;
1999               }
2000             release_kbnode (node);
2001           }
2002           break;
2003
2004 #endif /* ENABLE_CARD_SUPPORT */
2005
2006           case cmdDELKEY: {
2007                 int n1;
2008
2009                 if( !(n1=count_selected_keys( keyblock )) )
2010                     tty_printf(_("You must select at least one key.\n"));
2011                 else if( !cpr_get_answer_is_yes( "keyedit.remove.subkey.okay",
2012                        n1 > 1?
2013                    _("Do you really want to delete the selected keys? (y/N) "):
2014                         _("Do you really want to delete this key? (y/N) ")
2015                        ))
2016                     ;
2017                 else {
2018                     menu_delkey( keyblock, sec_keyblock );
2019                     redisplay = 1;
2020                     modified = 1;
2021                     if( sec_keyblock )
2022                        sec_modified = 1;
2023                 }
2024             }
2025             break;
2026
2027           case cmdADDREVOKER:
2028             {
2029               int sensitive=0;
2030
2031               if(ascii_strcasecmp(arg_string,"sensitive")==0)
2032                 sensitive=1;
2033               if( menu_addrevoker( keyblock, sec_keyblock, sensitive ) ) {
2034                 redisplay = 1;
2035                 sec_modified = modified = 1;
2036                 merge_keys_and_selfsig( sec_keyblock );
2037                 merge_keys_and_selfsig( keyblock );
2038               }
2039             }
2040             break;
2041
2042           case cmdREVUID: {
2043                 int n1;
2044
2045                 if( !(n1=count_selected_uids(keyblock)) )
2046                     tty_printf(_("You must select at least one user ID.\n"));
2047                 else if( cpr_get_answer_is_yes(
2048                             "keyedit.revoke.uid.okay",
2049                        n1 > 1? _("Really revoke all selected user IDs? (y/N) ")
2050                              : _("Really revoke this user ID? (y/N) ")
2051                        ) ) {
2052                   if(menu_revuid(keyblock,sec_keyblock))
2053                     {
2054                       modified=1;
2055                       redisplay=1;
2056                     }
2057                 }
2058             }
2059             break;
2060
2061           case cmdREVKEY:
2062             {
2063               int n1;
2064
2065               if( !(n1=count_selected_keys( keyblock )) )
2066                 {
2067                   if(cpr_get_answer_is_yes("keyedit.revoke.subkey.okay",
2068                                            _("Do you really want to revoke"
2069                                              " the entire key? (y/N) ")))
2070                     {
2071                       if(menu_revkey(keyblock,sec_keyblock))
2072                         modified=1;
2073
2074                       redisplay=1;
2075                     }
2076                 }
2077               else if(cpr_get_answer_is_yes("keyedit.revoke.subkey.okay",
2078                                             n1 > 1?
2079                                             _("Do you really want to revoke"
2080                                               " the selected subkeys? (y/N) "):
2081                                             _("Do you really want to revoke"
2082                                               " this subkey? (y/N) ")))
2083                 {
2084                   if( menu_revsubkey( keyblock, sec_keyblock ) )
2085                     modified = 1;
2086
2087                   redisplay = 1;
2088                 }
2089
2090               if(modified)
2091                 merge_keys_and_selfsig( keyblock );
2092             }
2093             break;
2094
2095           case cmdEXPIRE:
2096             if( menu_expire( keyblock, sec_keyblock ) )
2097               {
2098                 merge_keys_and_selfsig( sec_keyblock );
2099                 merge_keys_and_selfsig( keyblock );
2100                 sec_modified = 1;
2101                 modified = 1;
2102                 redisplay = 1;
2103               }
2104             break;
2105
2106           case cmdBACKSIGN:
2107             if(menu_backsign(keyblock,sec_keyblock))
2108               {
2109                 sec_modified = 1;
2110                 modified = 1;
2111                 redisplay = 1;
2112               }
2113             break;
2114
2115           case cmdPRIMARY:
2116             if( menu_set_primary_uid ( keyblock, sec_keyblock ) ) {
2117                 merge_keys_and_selfsig( keyblock );
2118                 modified = 1;
2119                 redisplay = 1;
2120             }
2121             break;
2122
2123           case cmdPASSWD:
2124             if( change_passphrase( sec_keyblock ) )
2125                 sec_modified = 1;
2126             break;
2127
2128           case cmdTRUST:
2129             if(opt.trust_model==TM_EXTERNAL)
2130               {
2131                 tty_printf (_("Owner trust may not be set while "
2132                               "using a user provided trust database\n"));
2133                 break;
2134               }
2135
2136             show_key_with_all_names( keyblock, 0, 0, 0, 1, 0 );
2137             tty_printf("\n");
2138             if( edit_ownertrust( find_kbnode( keyblock,
2139                                  PKT_PUBLIC_KEY )->pkt->pkt.public_key, 1 ) ) {
2140                 redisplay = 1;
2141                 /* No real need to set update_trust here as
2142                    edit_ownertrust() calls revalidation_mark()
2143                    anyway. */
2144                 update_trust=1;
2145             }
2146             break;
2147
2148           case cmdPREF:
2149             {
2150               int count=count_selected_uids(keyblock);
2151               assert(keyblock->pkt->pkttype==PKT_PUBLIC_KEY);
2152               show_names(keyblock,keyblock->pkt->pkt.public_key,
2153                          count?NODFLG_SELUID:0,1);
2154             }
2155             break;
2156
2157           case cmdSHOWPREF:
2158             {
2159               int count=count_selected_uids(keyblock);
2160               assert(keyblock->pkt->pkttype==PKT_PUBLIC_KEY);
2161               show_names(keyblock,keyblock->pkt->pkt.public_key,
2162                          count?NODFLG_SELUID:0,2);
2163             }
2164             break;
2165
2166           case cmdSETPREF:
2167             {
2168               PKT_user_id *tempuid;
2169
2170               keygen_set_std_prefs(!*arg_string?"default" : arg_string, 0);
2171
2172               tempuid=keygen_get_std_prefs();
2173               tty_printf(_("Set preference list to:\n"));
2174               show_prefs(tempuid,NULL,1);
2175               free_user_id(tempuid);
2176
2177               if(cpr_get_answer_is_yes("keyedit.setpref.okay",
2178                                        count_selected_uids (keyblock)?
2179                                        _("Really update the preferences"
2180                                          " for the selected user IDs? (y/N) "):
2181                                        _("Really update the preferences? (y/N) ")))
2182                 {
2183                   if ( menu_set_preferences (keyblock, sec_keyblock) )
2184                     {
2185                       merge_keys_and_selfsig (keyblock);
2186                       modified = 1;
2187                       redisplay = 1;
2188                     }
2189                 }
2190             }
2191             break;
2192
2193           case cmdPREFKS:
2194             if( menu_set_keyserver_url ( *arg_string?arg_string:NULL,
2195                                          keyblock, sec_keyblock ) )
2196               {
2197                 merge_keys_and_selfsig( keyblock );
2198                 modified = 1;
2199                 redisplay = 1;
2200               }
2201             break;
2202
2203           case cmdNOTATION:
2204             if( menu_set_notation ( *arg_string?arg_string:NULL,
2205                                     keyblock, sec_keyblock ) )
2206               {
2207                 merge_keys_and_selfsig( keyblock );
2208                 modified = 1;
2209                 redisplay = 1;
2210               }
2211             break;
2212
2213           case cmdNOP:
2214             break;
2215
2216           case cmdREVSIG:
2217             if( menu_revsig( keyblock ) ) {
2218                 redisplay = 1;
2219                 modified = 1;
2220             }
2221             break;
2222
2223           case cmdENABLEKEY:
2224           case cmdDISABLEKEY:
2225             if( enable_disable_key( keyblock, cmd == cmdDISABLEKEY ) ) {
2226                 redisplay = 1;
2227                 modified = 1;
2228             }
2229             break;
2230
2231           case cmdSHOWPHOTO:
2232             menu_showphoto(keyblock);
2233             break;
2234
2235           case cmdCLEAN:
2236             if(menu_clean(keyblock,0))
2237               redisplay=modified=1;
2238             break;
2239
2240           case cmdMINIMIZE:
2241             if(menu_clean(keyblock,1))
2242               redisplay=modified=1;
2243             break;
2244
2245           case cmdQUIT:
2246             if( have_commands )
2247                 goto leave;
2248             if( !modified && !sec_modified )
2249                 goto leave;
2250             if( !cpr_get_answer_is_yes("keyedit.save.okay",
2251                                         _("Save changes? (y/N) ")) ) {
2252                 if( cpr_enabled()
2253                     || cpr_get_answer_is_yes("keyedit.cancel.okay",
2254                                              _("Quit without saving? (y/N) ")))
2255                     goto leave;
2256                 break;
2257             }
2258             /* fall thru */
2259           case cmdSAVE:
2260             if( modified || sec_modified  ) {
2261                 if( modified ) {
2262                     rc = keydb_update_keyblock (kdbhd, keyblock);
2263                     if( rc ) {
2264                         log_error(_("update failed: %s\n"), g10_errstr(rc) );
2265                         break;
2266                     }
2267                 }
2268                 if( sec_modified ) {
2269                     rc = keydb_update_keyblock (sec_kdbhd, sec_keyblock );
2270                     if( rc ) {
2271                         log_error( _("update secret failed: %s\n"),
2272                                    g10_errstr(rc) );
2273                         break;
2274                     }
2275                 }
2276             }
2277             else
2278                 tty_printf(_("Key not changed so no update needed.\n"));
2279
2280             if( update_trust )
2281               {
2282                 revalidation_mark ();
2283                 update_trust=0;
2284               }
2285             goto leave;
2286
2287           case cmdINVCMD:
2288           default:
2289             tty_printf("\n");
2290             tty_printf(_("Invalid command  (try \"help\")\n"));
2291             break;
2292         }
2293     } /* end main loop */
2294
2295   leave:
2296     release_kbnode( keyblock );
2297     release_kbnode( sec_keyblock );
2298     keydb_release (kdbhd);
2299     xfree(answer);
2300 }
2301
2302 static void
2303 tty_print_notations(int indent,PKT_signature *sig)
2304 {
2305   int first=1;
2306   struct notation *notation,*nd;
2307
2308   if(indent<0)
2309     {
2310       first=0;
2311       indent=-indent;
2312     }
2313
2314   notation=sig_to_notation(sig);
2315
2316   for(nd=notation;nd;nd=nd->next)
2317     {
2318       if(!first)
2319         tty_printf("%*s",indent,"");
2320       else
2321         first=0;
2322
2323       tty_print_utf8_string(nd->name,strlen(nd->name));
2324       tty_printf("=");
2325       tty_print_utf8_string(nd->value,strlen(nd->value));
2326       tty_printf("\n");
2327     }
2328
2329   free_notation(notation);
2330 }
2331
2332 /****************
2333  * show preferences of a public keyblock.
2334  */
2335 static void
2336 show_prefs (PKT_user_id *uid, PKT_signature *selfsig, int verbose)
2337 {
2338     const prefitem_t fake={0,0};
2339     const prefitem_t *prefs;
2340     int i;
2341
2342     if( !uid )
2343         return;
2344
2345     if( uid->prefs )
2346         prefs=uid->prefs;
2347     else if(verbose)
2348         prefs=&fake;
2349     else
2350       return;
2351
2352     if (verbose) {
2353         int any, des_seen=0, sha1_seen=0, uncomp_seen=0;
2354
2355         tty_printf ("     ");
2356         tty_printf (_("Cipher: "));
2357         for(i=any=0; prefs[i].type; i++ ) {
2358             if( prefs[i].type == PREFTYPE_SYM ) {
2359                 if (any)
2360                     tty_printf (", ");
2361                 any = 1;
2362                 /* We don't want to display strings for experimental algos */
2363                 if (!openpgp_cipher_test_algo (prefs[i].value)
2364                     && prefs[i].value < 100 )
2365                     tty_printf ("%s",
2366                                 openpgp_cipher_algo_name (prefs[i].value));
2367                 else
2368                     tty_printf ("[%d]", prefs[i].value);
2369                 if (prefs[i].value == CIPHER_ALGO_3DES )
2370                     des_seen = 1;
2371             }    
2372         }
2373         if (!des_seen) {
2374             if (any)
2375                 tty_printf (", ");
2376             tty_printf ("%s", openpgp_cipher_algo_name (CIPHER_ALGO_3DES));
2377         }
2378         tty_printf ("\n     ");
2379         tty_printf (_("Digest: "));
2380         for(i=any=0; prefs[i].type; i++ ) {
2381             if( prefs[i].type == PREFTYPE_HASH ) {
2382                 if (any)
2383                     tty_printf (", ");
2384                 any = 1;
2385                 /* We don't want to display strings for experimental algos */
2386                 if (!gcry_md_test_algo (prefs[i].value)
2387                     && prefs[i].value < 100 )
2388                     tty_printf ("%s", gcry_md_algo_name (prefs[i].value) );
2389                 else
2390                     tty_printf ("[%d]", prefs[i].value);
2391                 if (prefs[i].value == DIGEST_ALGO_SHA1 )
2392                     sha1_seen = 1;
2393             }
2394         }
2395         if (!sha1_seen) {
2396             if (any)
2397                 tty_printf (", ");
2398             tty_printf ("%s", gcry_md_algo_name (DIGEST_ALGO_SHA1));
2399         }
2400         tty_printf ("\n     ");
2401         tty_printf (_("Compression: "));
2402         for(i=any=0; prefs[i].type; i++ ) {
2403             if( prefs[i].type == PREFTYPE_ZIP ) {
2404                 const char *s=compress_algo_to_string(prefs[i].value);
2405                 
2406                 if (any)
2407                     tty_printf (", ");
2408                 any = 1;
2409                 /* We don't want to display strings for experimental algos */
2410                 if (s && prefs[i].value < 100 )
2411                     tty_printf ("%s", s );
2412                 else
2413                     tty_printf ("[%d]", prefs[i].value);
2414                 if (prefs[i].value == COMPRESS_ALGO_NONE )
2415                     uncomp_seen = 1;
2416             }
2417         }
2418         if (!uncomp_seen) {
2419             if (any)
2420                 tty_printf (", ");
2421             else {
2422               tty_printf ("%s",compress_algo_to_string(COMPRESS_ALGO_ZIP));
2423               tty_printf (", ");
2424             }
2425             tty_printf ("%s",compress_algo_to_string(COMPRESS_ALGO_NONE));
2426         }
2427         if(uid->flags.mdc || !uid->flags.ks_modify)
2428           {
2429             tty_printf ("\n     ");
2430             tty_printf (_("Features: "));
2431             any=0;
2432             if(uid->flags.mdc)
2433               {
2434                 tty_printf ("MDC");
2435                 any=1;
2436               }
2437             if(!uid->flags.ks_modify)
2438               {
2439                 if(any)
2440                   tty_printf (", ");
2441                 tty_printf (_("Keyserver no-modify"));
2442               }
2443           }
2444         tty_printf("\n");
2445
2446         if(selfsig)
2447           {
2448             const byte *pref_ks;
2449             size_t pref_ks_len;
2450
2451             pref_ks=parse_sig_subpkt(selfsig->hashed,
2452                                      SIGSUBPKT_PREF_KS,&pref_ks_len);
2453             if(pref_ks && pref_ks_len)
2454               {
2455                 tty_printf ("     ");
2456                 tty_printf(_("Preferred keyserver: "));
2457                 tty_print_utf8_string(pref_ks,pref_ks_len);
2458                 tty_printf("\n");
2459               }
2460
2461             if(selfsig->flags.notation)
2462               {
2463                 tty_printf ("     ");
2464                 tty_printf(_("Notations: "));
2465                 tty_print_notations(5+strlen(_("Notations: ")),selfsig);
2466               }
2467           }
2468     }
2469     else {
2470         tty_printf("    ");
2471         for(i=0; prefs[i].type; i++ ) {
2472             tty_printf( " %c%d", prefs[i].type == PREFTYPE_SYM   ? 'S' :
2473                                  prefs[i].type == PREFTYPE_HASH  ? 'H' :
2474                                  prefs[i].type == PREFTYPE_ZIP ? 'Z':'?',
2475                                  prefs[i].value);
2476         }
2477         if (uid->flags.mdc)
2478             tty_printf (" [mdc]");
2479         if (!uid->flags.ks_modify)
2480             tty_printf (" [no-ks-modify]");
2481         tty_printf("\n");
2482     }
2483 }
2484
2485 /* This is the version of show_key_with_all_names used when
2486    opt.with_colons is used.  It prints all available data in a easy to
2487    parse format and does not translate utf8 */
2488 static void
2489 show_key_with_all_names_colon (KBNODE keyblock)
2490 {
2491   KBNODE node;
2492   int i, j, ulti_hack=0;
2493   byte pk_version=0;
2494   PKT_public_key *primary=NULL;
2495
2496   /* the keys */
2497   for ( node = keyblock; node; node = node->next )
2498     {
2499       if (node->pkt->pkttype == PKT_PUBLIC_KEY
2500           || (node->pkt->pkttype == PKT_PUBLIC_SUBKEY) )
2501         {
2502           PKT_public_key *pk = node->pkt->pkt.public_key;
2503           u32 keyid[2];
2504
2505           if (node->pkt->pkttype == PKT_PUBLIC_KEY)
2506             {
2507               pk_version = pk->version;
2508               primary=pk;
2509             }
2510
2511           keyid_from_pk (pk, keyid);
2512
2513           fputs (node->pkt->pkttype == PKT_PUBLIC_KEY?"pub:":"sub:", stdout);
2514           if (!pk->is_valid)
2515             putchar ('i');
2516           else if (pk->is_revoked)
2517             putchar ('r');
2518           else if (pk->has_expired)
2519             putchar ('e');
2520           else if (!(opt.fast_list_mode || opt.no_expensive_trust_checks ))
2521             {
2522               int trust = get_validity_info (pk, NULL);
2523               if(trust=='u')
2524                 ulti_hack=1;
2525               putchar (trust);
2526             }
2527
2528           printf (":%u:%d:%08lX%08lX:%lu:%lu::",
2529                   nbits_from_pk (pk),
2530                   pk->pubkey_algo,
2531                   (ulong)keyid[0], (ulong)keyid[1],
2532                   (ulong)pk->timestamp,
2533                   (ulong)pk->expiredate );
2534           if (node->pkt->pkttype==PKT_PUBLIC_KEY
2535               && !(opt.fast_list_mode || opt.no_expensive_trust_checks ))
2536             putchar(get_ownertrust_info (pk));
2537           putchar(':');
2538           putchar (':');
2539           putchar (':');
2540           /* Print capabilities.  */
2541           if ( (pk->pubkey_usage & PUBKEY_USAGE_ENC) )
2542             putchar ('e');
2543           if ( (pk->pubkey_usage & PUBKEY_USAGE_SIG) )
2544             putchar ('s');
2545           if ( (pk->pubkey_usage & PUBKEY_USAGE_CERT) )
2546             putchar ('c');
2547           if ( (pk->pubkey_usage & PUBKEY_USAGE_AUTH) )
2548             putchar ('a');
2549           putchar('\n');
2550           
2551           print_fingerprint (pk, NULL, 0);
2552           print_revokers(pk);
2553         }
2554     }
2555   
2556     /* the user ids */
2557     i = 0;
2558     for (node = keyblock; node; node = node->next) 
2559       {
2560         if ( node->pkt->pkttype == PKT_USER_ID )
2561           {
2562             PKT_user_id *uid = node->pkt->pkt.user_id;
2563
2564             ++i;
2565
2566             if(uid->attrib_data)
2567               printf("uat:");
2568             else
2569               printf("uid:");
2570
2571             if ( uid->is_revoked )
2572               printf("r::::::::");
2573             else if ( uid->is_expired )
2574               printf("e::::::::");
2575             else if ( opt.fast_list_mode || opt.no_expensive_trust_checks )
2576               printf("::::::::");
2577             else
2578               {
2579                 int uid_validity;
2580
2581                 if( primary && !ulti_hack )
2582                   uid_validity = get_validity_info( primary, uid );
2583                 else
2584                   uid_validity = 'u';
2585                 printf("%c::::::::",uid_validity);
2586               }
2587
2588             if(uid->attrib_data)
2589               printf ("%u %lu",uid->numattribs,uid->attrib_len);
2590             else
2591               print_string (stdout, uid->name, uid->len, ':');
2592
2593             putchar (':');
2594             /* signature class */
2595             putchar (':');
2596             /* capabilities */
2597             putchar (':');
2598             /* preferences */
2599             if (pk_version>3 || uid->selfsigversion>3)
2600               {
2601                 const prefitem_t *prefs = uid->prefs;
2602                 
2603                 for (j=0; prefs && prefs[j].type; j++)
2604                   {
2605                     if (j)
2606                       putchar (' ');
2607                     printf ("%c%d", prefs[j].type == PREFTYPE_SYM   ? 'S' :
2608                             prefs[j].type == PREFTYPE_HASH  ? 'H' :
2609                             prefs[j].type == PREFTYPE_ZIP ? 'Z':'?',
2610                             prefs[j].value);
2611                   } 
2612                 if (uid->flags.mdc)
2613                   printf (",mdc");
2614                 if (!uid->flags.ks_modify)
2615                   printf (",no-ks-modify");
2616               } 
2617             putchar (':');
2618             /* flags */
2619             printf ("%d,", i);
2620             if (uid->is_primary)
2621               putchar ('p');
2622             if (uid->is_revoked)
2623               putchar ('r');
2624             if (uid->is_expired)
2625               putchar ('e');
2626             if ((node->flag & NODFLG_SELUID))
2627               putchar ('s');
2628             if ((node->flag & NODFLG_MARK_A))
2629               putchar ('m');
2630             putchar (':');
2631             putchar('\n');
2632           }
2633       }
2634 }
2635
2636 static void
2637 show_names(KBNODE keyblock,PKT_public_key *pk,unsigned int flag,int with_prefs)
2638 {
2639   KBNODE node;
2640   int i=0;
2641
2642   for( node = keyblock; node; node = node->next )
2643     {
2644       if( node->pkt->pkttype == PKT_USER_ID
2645           && !is_deleted_kbnode(node))
2646         {
2647           PKT_user_id *uid = node->pkt->pkt.user_id;
2648           ++i;
2649           if(!flag || (flag && (node->flag & flag)))
2650             {
2651               if(!(flag&NODFLG_MARK_A) && pk)
2652                 tty_printf("%s ",uid_trust_string_fixed(pk,uid));
2653
2654               if( flag & NODFLG_MARK_A )
2655                 tty_printf("     ");
2656               else if( node->flag & NODFLG_SELUID )
2657                 tty_printf("(%d)* ", i);
2658               else if( uid->is_primary )
2659                 tty_printf("(%d). ", i);
2660               else
2661                 tty_printf("(%d)  ", i);
2662               tty_print_utf8_string( uid->name, uid->len );
2663               tty_printf("\n");
2664               if(with_prefs && pk)
2665                 {
2666                   if(pk->version>3 || uid->selfsigversion>3)
2667                     {
2668                       PKT_signature *selfsig=NULL;
2669                       KBNODE signode;
2670
2671                       for(signode=node->next;
2672                           signode && signode->pkt->pkttype==PKT_SIGNATURE;
2673                           signode=signode->next)
2674                         {
2675                           if(signode->pkt->pkt.signature->
2676                              flags.chosen_selfsig)
2677                             {
2678                               selfsig=signode->pkt->pkt.signature;
2679                               break;
2680                             }
2681                         }
2682
2683                       show_prefs (uid, selfsig, with_prefs == 2);
2684                     }
2685                   else
2686                     tty_printf(_("There are no preferences on a"
2687                                  " PGP 2.x-style user ID.\n"));
2688                 }
2689             }
2690         }
2691     }
2692 }
2693
2694 /****************
2695  * Display the key a the user ids, if only_marked is true, do only
2696  * so for user ids with mark A flag set and dont display the index number
2697  */
2698 static void
2699 show_key_with_all_names( KBNODE keyblock, int only_marked, int with_revoker,
2700                          int with_fpr, int with_subkeys, int with_prefs )
2701 {
2702     KBNODE node;
2703     int i;
2704     int do_warn = 0;
2705     byte pk_version=0;
2706     PKT_public_key *primary=NULL;
2707
2708     if (opt.with_colons)
2709       {
2710         show_key_with_all_names_colon (keyblock);
2711         return;
2712       }
2713
2714     /* the keys */
2715     for( node = keyblock; node; node = node->next ) {
2716         if( node->pkt->pkttype == PKT_PUBLIC_KEY
2717             || (with_subkeys && node->pkt->pkttype == PKT_PUBLIC_SUBKEY
2718                 && !is_deleted_kbnode(node)) ) {
2719             PKT_public_key *pk = node->pkt->pkt.public_key;
2720             const char *otrust="err",*trust="err";
2721
2722             if( node->pkt->pkttype == PKT_PUBLIC_KEY ) {
2723                 /* do it here, so that debug messages don't clutter the
2724                  * output */
2725                 static int did_warn = 0;
2726
2727                 trust = get_validity_string (pk, NULL);
2728                 otrust = get_ownertrust_string (pk);
2729
2730                 /* Show a warning once */
2731                 if (!did_warn
2732                     && (get_validity (pk, NULL) & TRUST_FLAG_PENDING_CHECK)) {
2733                     did_warn = 1;
2734                     do_warn = 1;
2735                 }
2736
2737                 pk_version=pk->version;
2738                 primary=pk;
2739             }
2740
2741             if(pk->is_revoked)
2742               {
2743                 char *user=get_user_id_string_native(pk->revoked.keyid);
2744                 const char *algo = gcry_pk_algo_name (pk->revoked.algo);
2745                 tty_printf(_("This key was revoked on %s by %s key %s\n"),
2746                            revokestr_from_pk(pk),algo?algo:"?",user);
2747                 xfree(user);
2748               }
2749
2750             if(with_revoker)
2751               {
2752                 if( !pk->revkey && pk->numrevkeys )
2753                   BUG();
2754                 else
2755                   for(i=0;i<pk->numrevkeys;i++)
2756                     {
2757                       u32 r_keyid[2];
2758                       char *user;
2759                       const char *algo;
2760
2761                       algo = gcry_pk_algo_name (pk->revkey[i].algid);
2762                       keyid_from_fingerprint(pk->revkey[i].fpr,
2763                                              MAX_FINGERPRINT_LEN,r_keyid);
2764
2765                       user=get_user_id_string_native(r_keyid);
2766                       tty_printf(_("This key may be revoked by %s key %s"),
2767                                  algo?algo:"?",user);
2768
2769                       if(pk->revkey[i].class&0x40)
2770                         {
2771                           tty_printf(" ");
2772                           tty_printf(_("(sensitive)"));
2773                         }
2774
2775                       tty_printf ("\n");
2776                       xfree(user);
2777                     }
2778               }
2779
2780             keyid_from_pk(pk,NULL);
2781             tty_printf("%s%c %4u%c/%s  ",
2782                        node->pkt->pkttype == PKT_PUBLIC_KEY? "pub":"sub",
2783                        (node->flag & NODFLG_SELKEY)? '*':' ',
2784                        nbits_from_pk( pk ),
2785                        pubkey_letter( pk->pubkey_algo ),
2786                        keystr(pk->keyid));
2787
2788             tty_printf(_("created: %s"),datestr_from_pk(pk));
2789             tty_printf("  ");
2790             if(pk->is_revoked)
2791               tty_printf(_("revoked: %s"),revokestr_from_pk(pk));
2792             else if(pk->has_expired)
2793               tty_printf(_("expired: %s"),expirestr_from_pk(pk));
2794             else
2795               tty_printf(_("expires: %s"),expirestr_from_pk(pk));
2796             tty_printf("  ");
2797             tty_printf(_("usage: %s"),usagestr_from_pk(pk));
2798             tty_printf("\n");
2799
2800             if( node->pkt->pkttype == PKT_PUBLIC_KEY )
2801               {
2802                 if(opt.trust_model!=TM_ALWAYS)
2803                   {
2804                     tty_printf("%*s", (int)keystrlen()+13,"");
2805                     /* Ownertrust is only meaningful for the PGP or
2806                        classic trust models */
2807                     if(opt.trust_model==TM_PGP || opt.trust_model==TM_CLASSIC)
2808                       {
2809                         int width=14-strlen(otrust);
2810                         if(width<=0)
2811                           width=1;
2812                         tty_printf(_("trust: %s"), otrust);
2813                         tty_printf("%*s",width,"");
2814                       }
2815                     
2816                     tty_printf(_("validity: %s"), trust );
2817                     tty_printf("\n");
2818                   }
2819                 if( node->pkt->pkttype == PKT_PUBLIC_KEY
2820                     && (get_ownertrust (pk)&TRUST_FLAG_DISABLED))
2821                   {
2822                     tty_printf("*** ");
2823                     tty_printf(_("This key has been disabled"));
2824                     tty_printf("\n");
2825                   }
2826               }
2827
2828             if( node->pkt->pkttype == PKT_PUBLIC_KEY && with_fpr )
2829               {
2830                 print_fingerprint ( pk, NULL, 2 );
2831                 tty_printf("\n");
2832               }
2833         }
2834         else if( node->pkt->pkttype == PKT_SECRET_KEY
2835             || (with_subkeys && node->pkt->pkttype == PKT_SECRET_SUBKEY) )
2836           {
2837             PKT_secret_key *sk = node->pkt->pkt.secret_key;
2838             tty_printf("%s%c %4u%c/%s  ",
2839                        node->pkt->pkttype == PKT_SECRET_KEY? "sec":"ssb",
2840                        (node->flag & NODFLG_SELKEY)? '*':' ',
2841                        nbits_from_sk( sk ),
2842                        pubkey_letter( sk->pubkey_algo ),
2843                        keystr_from_sk(sk));
2844             tty_printf(_("created: %s"),datestr_from_sk(sk));
2845             tty_printf("  ");
2846             tty_printf(_("expires: %s"),expirestr_from_sk(sk));
2847             tty_printf("\n");
2848             if (sk->is_protected && sk->protect.s2k.mode == 1002)
2849               {
2850                 tty_printf("                     ");
2851                 tty_printf(_("card-no: ")); 
2852                 if (sk->protect.ivlen == 16
2853                     && !memcmp (sk->protect.iv, "\xD2\x76\x00\x01\x24\x01", 6))
2854                   { /* This is an OpenPGP card. */
2855                     for (i=8; i < 14; i++)
2856                       {
2857                         if (i == 10)
2858                           tty_printf (" ");
2859                         tty_printf ("%02X", sk->protect.iv[i]);
2860                       }
2861                   }
2862                 else
2863                   { /* Something is wrong: Print all. */
2864                     for (i=0; i < sk->protect.ivlen; i++)
2865                       tty_printf ("%02X", sk->protect.iv[i]);
2866                   }
2867                 tty_printf ("\n");
2868               }
2869           }
2870     }
2871
2872     show_names(keyblock,primary,only_marked?NODFLG_MARK_A:0,with_prefs);
2873
2874     if (do_warn)
2875         tty_printf (_("Please note that the shown key validity"
2876                       " is not necessarily correct\n"
2877                       "unless you restart the program.\n")); 
2878 }
2879
2880
2881 /* Display basic key information.  This function is suitable to show
2882    information on the key without any dependencies on the trustdb or
2883    any other internal GnuPG stuff.  KEYBLOCK may either be a public or
2884    a secret key.*/
2885 void
2886 show_basic_key_info ( KBNODE keyblock )
2887 {
2888   KBNODE node;
2889   int i;
2890
2891   /* The primary key */
2892   for (node = keyblock; node; node = node->next)
2893     {
2894       if (node->pkt->pkttype == PKT_PUBLIC_KEY)
2895         {
2896           PKT_public_key *pk = node->pkt->pkt.public_key;
2897           
2898           /* Note, we use the same format string as in other show
2899              functions to make the translation job easier. */
2900           tty_printf ("%s  %4u%c/%s  ",
2901                       node->pkt->pkttype == PKT_PUBLIC_KEY? "pub":"sub",
2902                       nbits_from_pk( pk ),
2903                       pubkey_letter( pk->pubkey_algo ),
2904                       keystr_from_pk(pk));
2905           tty_printf(_("created: %s"),datestr_from_pk(pk));
2906           tty_printf("  ");
2907           tty_printf(_("expires: %s"),expirestr_from_pk(pk));
2908           tty_printf("\n");
2909           print_fingerprint ( pk, NULL, 3 );
2910           tty_printf("\n");
2911         }
2912       else if (node->pkt->pkttype == PKT_SECRET_KEY)
2913         {
2914           PKT_secret_key *sk = node->pkt->pkt.secret_key;
2915           tty_printf("%s  %4u%c/%s",
2916                      node->pkt->pkttype == PKT_SECRET_KEY? "sec":"ssb",
2917                      nbits_from_sk( sk ),
2918                      pubkey_letter( sk->pubkey_algo ),
2919                      keystr_from_sk(sk));
2920           tty_printf(_("created: %s"),datestr_from_sk(sk));
2921           tty_printf("  ");
2922           tty_printf(_("expires: %s"),expirestr_from_sk(sk));
2923           tty_printf("\n");
2924           print_fingerprint (NULL, sk, 3 );
2925           tty_printf("\n");
2926         }
2927     }
2928
2929   /* The user IDs. */
2930   for (i=0, node = keyblock; node; node = node->next)
2931     {
2932       if (node->pkt->pkttype == PKT_USER_ID)
2933         {
2934           PKT_user_id *uid = node->pkt->pkt.user_id;
2935           ++i;
2936      
2937           tty_printf ("     ");
2938           if (uid->is_revoked)
2939             tty_printf("[%s] ",_("revoked"));
2940           else if ( uid->is_expired )
2941             tty_printf("[%s] ",_("expired"));
2942           tty_print_utf8_string (uid->name, uid->len);
2943           tty_printf ("\n");
2944         }
2945     }
2946 }
2947
2948 static void
2949 show_key_and_fingerprint( KBNODE keyblock )
2950 {
2951   KBNODE node;
2952   PKT_public_key *pk = NULL;
2953
2954   for( node = keyblock; node; node = node->next )
2955     {
2956       if( node->pkt->pkttype == PKT_PUBLIC_KEY )
2957         {
2958           pk = node->pkt->pkt.public_key;
2959           tty_printf("pub   %4u%c/%s %s ",
2960                      nbits_from_pk( pk ),
2961                      pubkey_letter( pk->pubkey_algo ),
2962                      keystr_from_pk(pk),
2963                      datestr_from_pk(pk) );
2964         }
2965       else if( node->pkt->pkttype == PKT_USER_ID )
2966         {
2967           PKT_user_id *uid = node->pkt->pkt.user_id;
2968           tty_print_utf8_string( uid->name, uid->len );
2969           break;
2970         }
2971     }
2972   tty_printf("\n");
2973   if( pk )
2974     print_fingerprint( pk, NULL, 2 );
2975 }
2976
2977
2978 /* Show a warning if no uids on the key have the primary uid flag
2979    set. */
2980 static void
2981 no_primary_warning(KBNODE keyblock)
2982 {
2983   KBNODE node;
2984   int have_primary=0,uid_count=0;
2985
2986   /* TODO: if we ever start behaving differently with a primary or
2987      non-primary attribute ID, we will need to check for attributes
2988      here as well. */
2989
2990   for(node=keyblock; node; node = node->next)
2991     {
2992       if(node->pkt->pkttype==PKT_USER_ID
2993          && node->pkt->pkt.user_id->attrib_data==NULL)
2994         {
2995           uid_count++;
2996
2997           if(node->pkt->pkt.user_id->is_primary==2)
2998             {
2999               have_primary=1;
3000               break;
3001             }
3002         }
3003     }
3004
3005   if(uid_count>1 && !have_primary)
3006     log_info(_("WARNING: no user ID has been marked as primary.  This command"
3007                " may\n              cause a different user ID to become"
3008                " the assumed primary.\n"));
3009 }
3010
3011 /****************
3012  * Ask for a new user id, do the selfsignature and put it into
3013  * both keyblocks.
3014  * Return true if there is a new user id
3015  */
3016 static int
3017 menu_adduid( KBNODE pub_keyblock, KBNODE sec_keyblock,
3018              int photo, const char *photo_name)
3019 {
3020     PKT_user_id *uid;
3021     PKT_public_key *pk=NULL;
3022     PKT_secret_key *sk=NULL;
3023     PKT_signature *sig=NULL;
3024     PACKET *pkt;
3025     KBNODE node;
3026     KBNODE pub_where=NULL, sec_where=NULL;
3027     int rc;
3028
3029     for( node = pub_keyblock; node; pub_where = node, node = node->next ) {
3030         if( node->pkt->pkttype == PKT_PUBLIC_KEY )
3031             pk = node->pkt->pkt.public_key;
3032         else if( node->pkt->pkttype == PKT_PUBLIC_SUBKEY )
3033             break;
3034     }
3035     if( !node ) /* no subkey */
3036         pub_where = NULL;
3037     for( node = sec_keyblock; node; sec_where = node, node = node->next ) {
3038         if( node->pkt->pkttype == PKT_SECRET_KEY )
3039             sk = copy_secret_key( NULL, node->pkt->pkt.secret_key);
3040         else if( node->pkt->pkttype == PKT_SECRET_SUBKEY )
3041             break;
3042     }
3043     if( !node ) /* no subkey */
3044         sec_where = NULL;
3045     assert(pk && sk);
3046
3047     if(photo) {
3048       int hasattrib=0;
3049
3050       for( node = pub_keyblock; node; node = node->next )
3051         if( node->pkt->pkttype == PKT_USER_ID &&
3052             node->pkt->pkt.user_id->attrib_data!=NULL)
3053           {
3054             hasattrib=1;
3055             break;
3056           }
3057
3058       /* It is legal but bad for compatibility to add a photo ID to a
3059          v3 key as it means that PGP2 will not be able to use that key
3060          anymore.  Also, PGP may not expect a photo on a v3 key.
3061          Don't bother to ask this if the key already has a photo - any
3062          damage has already been done at that point. -dms */
3063       if(pk->version==3 && !hasattrib)
3064         {
3065           if(opt.expert)
3066             {
3067               tty_printf(_("WARNING: This is a PGP2-style key.  "
3068                            "Adding a photo ID may cause some versions\n"
3069                            "         of PGP to reject this key.\n"));
3070
3071               if(!cpr_get_answer_is_yes("keyedit.v3_photo.okay",
3072                                         _("Are you sure you still want "
3073                                           "to add it? (y/N) ")))
3074                 return 0;
3075             }
3076           else
3077             {
3078               tty_printf(_("You may not add a photo ID to "
3079                            "a PGP2-style key.\n"));
3080               return 0;
3081             }
3082         }
3083
3084       uid = generate_photo_id(pk,photo_name);
3085     } else
3086       uid = generate_user_id (pub_keyblock);
3087     if( !uid )
3088         return 0;
3089
3090     rc = make_keysig_packet( &sig, pk, uid, NULL, sk, 0x13, 0, 0, 0, 0,
3091                              keygen_add_std_prefs, pk );
3092     free_secret_key( sk );
3093     if( rc ) {
3094         log_error("signing failed: %s\n", g10_errstr(rc) );
3095         free_user_id(uid);
3096         return 0;
3097     }
3098
3099     /* insert/append to secret keyblock */
3100     pkt = xmalloc_clear( sizeof *pkt );
3101     pkt->pkttype = PKT_USER_ID;
3102     pkt->pkt.user_id = scopy_user_id(uid);
3103     node = new_kbnode(pkt);
3104     if( sec_where )
3105         insert_kbnode( sec_where, node, 0 );
3106     else
3107         add_kbnode( sec_keyblock, node );
3108     pkt = xmalloc_clear( sizeof *pkt );
3109     pkt->pkttype = PKT_SIGNATURE;
3110     pkt->pkt.signature = copy_signature(NULL, sig);
3111     if( sec_where )
3112         insert_kbnode( node, new_kbnode(pkt), 0 );
3113     else
3114         add_kbnode( sec_keyblock, new_kbnode(pkt) );
3115     /* insert/append to public keyblock */
3116     pkt = xmalloc_clear( sizeof *pkt );
3117     pkt->pkttype = PKT_USER_ID;
3118     pkt->pkt.user_id = uid;
3119     node = new_kbnode(pkt);
3120     if( pub_where )
3121         insert_kbnode( pub_where, node, 0 );
3122     else
3123         add_kbnode( pub_keyblock, node );
3124     pkt = xmalloc_clear( sizeof *pkt );
3125     pkt->pkttype = PKT_SIGNATURE;
3126     pkt->pkt.signature = copy_signature(NULL, sig);
3127     if( pub_where )
3128         insert_kbnode( node, new_kbnode(pkt), 0 );
3129     else
3130         add_kbnode( pub_keyblock, new_kbnode(pkt) );
3131     return 1;
3132 }
3133
3134
3135 /****************
3136  * Remove all selected userids from the keyrings
3137  */
3138 static void
3139 menu_deluid( KBNODE pub_keyblock, KBNODE sec_keyblock )
3140 {
3141     KBNODE node;
3142     int selected=0;
3143
3144     for( node = pub_keyblock; node; node = node->next ) {
3145         if( node->pkt->pkttype == PKT_USER_ID ) {
3146             selected = node->flag & NODFLG_SELUID;
3147             if( selected ) {
3148                 /* Only cause a trust update if we delete a
3149                    non-revoked user id */
3150                 if(!node->pkt->pkt.user_id->is_revoked)
3151                   update_trust=1;
3152                 delete_kbnode( node );
3153                 if( sec_keyblock ) {
3154                     KBNODE snode;
3155                     int s_selected = 0;
3156                     PKT_user_id *uid = node->pkt->pkt.user_id;
3157                     for( snode = sec_keyblock; snode; snode = snode->next ) {
3158                         if( snode->pkt->pkttype == PKT_USER_ID ) {
3159                             PKT_user_id *suid = snode->pkt->pkt.user_id;
3160
3161                             s_selected =
3162                                 (uid->len == suid->len
3163                                  && !memcmp( uid->name, suid->name, uid->len));
3164                             if( s_selected )
3165                                 delete_kbnode( snode );
3166                         }
3167                         else if( s_selected
3168                                  && snode->pkt->pkttype == PKT_SIGNATURE )
3169                             delete_kbnode( snode );
3170                         else if( snode->pkt->pkttype == PKT_SECRET_SUBKEY )
3171                             s_selected = 0;
3172                     }
3173                 }
3174             }
3175         }
3176         else if( selected && node->pkt->pkttype == PKT_SIGNATURE )
3177             delete_kbnode( node );
3178         else if( node->pkt->pkttype == PKT_PUBLIC_SUBKEY )
3179             selected = 0;
3180     }
3181     commit_kbnode( &pub_keyblock );
3182     if( sec_keyblock )
3183         commit_kbnode( &sec_keyblock );
3184 }
3185
3186
3187 static int
3188 menu_delsig( KBNODE pub_keyblock )
3189 {
3190     KBNODE node;
3191     PKT_user_id *uid = NULL;
3192     int changed=0;
3193
3194     for( node = pub_keyblock; node; node = node->next ) {
3195         if( node->pkt->pkttype == PKT_USER_ID ) {
3196             uid = (node->flag & NODFLG_SELUID)? node->pkt->pkt.user_id : NULL;
3197         }
3198         else if( uid && node->pkt->pkttype == PKT_SIGNATURE ) {
3199            int okay, valid, selfsig, inv_sig, no_key, other_err;
3200
3201             tty_printf("uid  ");
3202             tty_print_utf8_string( uid->name, uid->len );
3203             tty_printf("\n");
3204
3205             okay = inv_sig = no_key = other_err = 0;
3206             if(opt.with_colons)
3207               valid = print_and_check_one_sig_colon( pub_keyblock, node,
3208                                                &inv_sig, &no_key, &other_err,
3209                                                &selfsig, 1 );
3210             else
3211               valid = print_and_check_one_sig( pub_keyblock, node,
3212                                                &inv_sig, &no_key, &other_err,
3213                                                &selfsig, 1 );
3214
3215            if( valid ) {
3216                okay = cpr_get_answer_yes_no_quit(
3217                    "keyedit.delsig.valid",
3218                    _("Delete this good signature? (y/N/q)"));
3219
3220                /* Only update trust if we delete a good signature.
3221                   The other two cases do not affect trust. */
3222                if(okay)
3223                  update_trust=1;
3224            }
3225            else if( inv_sig || other_err )
3226                okay = cpr_get_answer_yes_no_quit(
3227                    "keyedit.delsig.invalid",
3228                    _("Delete this invalid signature? (y/N/q)"));
3229            else if( no_key )
3230                okay = cpr_get_answer_yes_no_quit(
3231                    "keyedit.delsig.unknown",
3232                    _("Delete this unknown signature? (y/N/q)"));
3233
3234             if( okay == -1 )
3235                 break;
3236            if( okay && selfsig && !cpr_get_answer_is_yes(
3237                                "keyedit.delsig.selfsig",
3238                               _("Really delete this self-signature? (y/N)") ))
3239                 okay = 0;
3240             if( okay ) {
3241                 delete_kbnode( node );
3242                 changed++;
3243             }
3244
3245         }
3246         else if( node->pkt->pkttype == PKT_PUBLIC_SUBKEY )
3247             uid = NULL;
3248     }
3249
3250     if( changed ) {
3251         commit_kbnode( &pub_keyblock );
3252         tty_printf( changed == 1? _("Deleted %d signature.\n")
3253                                 : _("Deleted %d signatures.\n"), changed );
3254     }
3255     else
3256         tty_printf( _("Nothing deleted.\n") );
3257
3258     return changed;
3259 }
3260
3261 static int
3262 menu_clean(KBNODE keyblock,int self_only)
3263 {
3264   KBNODE uidnode;
3265   int modified=0,select_all=!count_selected_uids(keyblock);
3266
3267   for(uidnode=keyblock->next;
3268       uidnode && uidnode->pkt->pkttype!=PKT_PUBLIC_SUBKEY;
3269       uidnode=uidnode->next)
3270     {
3271       if(uidnode->pkt->pkttype==PKT_USER_ID
3272          && (uidnode->flag&NODFLG_SELUID || select_all))
3273         {
3274           int uids=0,sigs=0;
3275           char *user=utf8_to_native(uidnode->pkt->pkt.user_id->name,
3276                                     uidnode->pkt->pkt.user_id->len,
3277                                     0);
3278
3279           clean_one_uid(keyblock,uidnode,opt.verbose,self_only,&uids,&sigs);
3280           if(uids)
3281             {
3282               const char *reason;
3283
3284               if(uidnode->pkt->pkt.user_id->is_revoked)
3285                 reason=_("revoked");
3286               else if(uidnode->pkt->pkt.user_id->is_expired)
3287                 reason=_("expired");
3288               else
3289                 reason=_("invalid");
3290
3291               tty_printf (_("User ID \"%s\" compacted: %s\n"), user, reason);
3292
3293               modified=1;
3294             }
3295           else if(sigs)
3296             {
3297               tty_printf(sigs==1?
3298                          _("User ID \"%s\": %d signature removed\n") :
3299                          _("User ID \"%s\": %d signatures removed\n"),
3300                          user,sigs);
3301
3302               modified=1;
3303             }
3304           else
3305             {
3306               tty_printf (self_only==1?
3307                           _("User ID \"%s\": already minimized\n") :
3308                           _("User ID \"%s\": already clean\n"),
3309                           user);
3310             }
3311
3312           xfree(user);
3313         }
3314     }
3315
3316   return modified;
3317 }
3318
3319 /****************
3320  * Remove some of the secondary keys
3321  */
3322 static void
3323 menu_delkey( KBNODE pub_keyblock, KBNODE sec_keyblock )
3324 {
3325     KBNODE node;
3326     int selected=0;
3327
3328     for( node = pub_keyblock; node; node = node->next ) {
3329         if( node->pkt->pkttype == PKT_PUBLIC_SUBKEY ) {
3330             selected = node->flag & NODFLG_SELKEY;
3331             if( selected ) {
3332                 delete_kbnode( node );
3333                 if( sec_keyblock ) {
3334                     KBNODE snode;
3335                     int s_selected = 0;
3336                     u32 ki[2];
3337
3338                     keyid_from_pk( node->pkt->pkt.public_key, ki );
3339                     for( snode = sec_keyblock; snode; snode = snode->next ) {
3340                         if( snode->pkt->pkttype == PKT_SECRET_SUBKEY ) {
3341                             u32 ki2[2];
3342
3343                             keyid_from_sk( snode->pkt->pkt.secret_key, ki2 );
3344                             s_selected = (ki[0] == ki2[0] && ki[1] == ki2[1]);
3345                             if( s_selected )
3346                                 delete_kbnode( snode );
3347                         }
3348                         else if( s_selected
3349                                  && snode->pkt->pkttype == PKT_SIGNATURE )
3350                             delete_kbnode( snode );
3351                         else
3352                             s_selected = 0;
3353                     }
3354                 }
3355             }
3356         }
3357         else if( selected && node->pkt->pkttype == PKT_SIGNATURE )
3358             delete_kbnode( node );
3359         else
3360             selected = 0;
3361     }
3362     commit_kbnode( &pub_keyblock );
3363     if( sec_keyblock )
3364         commit_kbnode( &sec_keyblock );
3365
3366     /* No need to set update_trust here since signing keys are no
3367        longer used to certify other keys, so there is no change in
3368        trust when revoking/removing them */
3369 }
3370
3371
3372 /****************
3373  * Ask for a new revoker, do the selfsignature and put it into
3374  * both keyblocks.
3375  * Return true if there is a new revoker
3376  */
3377 static int
3378 menu_addrevoker( KBNODE pub_keyblock, KBNODE sec_keyblock, int sensitive )
3379 {
3380   PKT_public_key *pk=NULL,*revoker_pk=NULL;
3381   PKT_secret_key *sk=NULL;
3382   PKT_signature *sig=NULL;
3383   PACKET *pkt;
3384   struct revocation_key revkey;
3385   size_t fprlen;
3386   int rc;
3387
3388   assert(pub_keyblock->pkt->pkttype==PKT_PUBLIC_KEY);
3389   assert(sec_keyblock->pkt->pkttype==PKT_SECRET_KEY);
3390
3391   pk=pub_keyblock->pkt->pkt.public_key;
3392
3393   if(pk->numrevkeys==0 && pk->version==3)
3394     {
3395       /* It is legal but bad for compatibility to add a revoker to a
3396          v3 key as it means that PGP2 will not be able to use that key
3397          anymore.  Also, PGP may not expect a revoker on a v3 key.
3398          Don't bother to ask this if the key already has a revoker -
3399          any damage has already been done at that point. -dms */
3400       if(opt.expert)
3401         {
3402           tty_printf(_("WARNING: This is a PGP 2.x-style key.  "
3403                        "Adding a designated revoker may cause\n"
3404                        "         some versions of PGP to reject this key.\n"));
3405
3406           if(!cpr_get_answer_is_yes("keyedit.v3_revoker.okay",
3407                                     _("Are you sure you still want "
3408                                       "to add it? (y/N) ")))
3409             return 0;
3410         }
3411       else
3412         {
3413           tty_printf(_("You may not add a designated revoker to "
3414                        "a PGP 2.x-style key.\n"));
3415           return 0;
3416         }
3417     }
3418
3419   sk=copy_secret_key(NULL,sec_keyblock->pkt->pkt.secret_key);
3420
3421   for(;;)
3422     {
3423       char *answer;
3424
3425       if(revoker_pk)
3426         free_public_key(revoker_pk);
3427
3428       revoker_pk=xmalloc_clear(sizeof(*revoker_pk));
3429
3430       tty_printf("\n");
3431
3432       answer=cpr_get_utf8("keyedit.add_revoker",
3433                           _("Enter the user ID of the designated revoker: "));
3434       if(answer[0]=='\0' || answer[0]=='\004')
3435         {
3436           xfree(answer);
3437           goto fail;
3438         }
3439
3440       /* Note that I'm requesting CERT here, which usually implies
3441          primary keys only, but some casual testing shows that PGP and
3442          GnuPG both can handle a designated revokation from a
3443          subkey. */
3444       revoker_pk->req_usage=PUBKEY_USAGE_CERT;
3445       rc=get_pubkey_byname (NULL, revoker_pk,answer,NULL,NULL,1, 1);
3446       if(rc)
3447         {
3448           log_error (_("key \"%s\" not found: %s\n"),answer,g10_errstr(rc));
3449           xfree(answer);
3450           continue;
3451         }
3452
3453       xfree(answer);
3454
3455       fingerprint_from_pk(revoker_pk,revkey.fpr,&fprlen);
3456       if(fprlen!=20)
3457         {
3458           log_error(_("cannot appoint a PGP 2.x style key as a "
3459                       "designated revoker\n"));
3460           continue;
3461         }
3462
3463       revkey.class=0x80;
3464       if(sensitive)
3465         revkey.class|=0x40;
3466       revkey.algid=revoker_pk->pubkey_algo;
3467
3468       if(cmp_public_keys(revoker_pk,pk)==0)
3469         {
3470           /* This actually causes no harm (after all, a key that
3471              designates itself as a revoker is the same as a
3472              regular key), but it's easy enough to check. */
3473           log_error(_("you cannot appoint a key as its own "
3474                       "designated revoker\n"));
3475
3476           continue;
3477         }
3478
3479       keyid_from_pk(pk,NULL);
3480
3481       /* Does this revkey already exist? */
3482       if(!pk->revkey && pk->numrevkeys)
3483         BUG();
3484       else
3485         {
3486           int i;
3487
3488           for(i=0;i<pk->numrevkeys;i++)
3489             {
3490               if(memcmp(&pk->revkey[i],&revkey,
3491                         sizeof(struct revocation_key))==0)
3492                 {
3493                   char buf[50];
3494
3495                   log_error(_("this key has already been designated "
3496                               "as a revoker\n"));
3497
3498                   sprintf(buf,"%08lX%08lX",
3499                           (ulong)pk->keyid[0],(ulong)pk->keyid[1]);
3500                   write_status_text(STATUS_ALREADY_SIGNED,buf);
3501
3502                   break;
3503                 }
3504             }
3505
3506           if(i<pk->numrevkeys)
3507             continue;
3508         }
3509
3510       print_pubkey_info(NULL,revoker_pk);
3511       print_fingerprint(revoker_pk,NULL,2);
3512       tty_printf("\n");
3513
3514       tty_printf(_("WARNING: appointing a key as a designated revoker "
3515                    "cannot be undone!\n"));
3516
3517       tty_printf("\n");
3518
3519       if(!cpr_get_answer_is_yes("keyedit.add_revoker.okay",
3520                                 _("Are you sure you want to appoint this "
3521                                   "key as a designated revoker? (y/N) ")))
3522         continue;
3523
3524       free_public_key(revoker_pk);
3525       revoker_pk=NULL;
3526       break;
3527     }
3528
3529   /* The 1F signature must be at least v4 to carry the revocation key
3530      subpacket. */
3531   rc = make_keysig_packet( &sig, pk, NULL, NULL, sk, 0x1F, 0, 4, 0, 0,
3532                            keygen_add_revkey,&revkey );
3533   if( rc )
3534     {
3535       log_error("signing failed: %s\n", g10_errstr(rc) );
3536       goto fail;
3537     }
3538
3539   free_secret_key(sk);
3540   sk=NULL;
3541
3542   /* insert into secret keyblock */
3543   pkt = xmalloc_clear( sizeof *pkt );
3544   pkt->pkttype = PKT_SIGNATURE;
3545   pkt->pkt.signature = copy_signature(NULL, sig);
3546   insert_kbnode( sec_keyblock, new_kbnode(pkt), PKT_SIGNATURE );
3547
3548   /* insert into public keyblock */
3549   pkt = xmalloc_clear( sizeof *pkt );
3550   pkt->pkttype = PKT_SIGNATURE;
3551   pkt->pkt.signature = sig;
3552   insert_kbnode( pub_keyblock, new_kbnode(pkt), PKT_SIGNATURE );
3553
3554   return 1;
3555
3556  fail:
3557   if(sk)
3558     free_secret_key(sk);
3559   if(sig)
3560     free_seckey_enc(sig);
3561   if(revoker_pk)
3562     free_public_key(revoker_pk);
3563
3564   return 0;
3565 }
3566
3567
3568 static int
3569 menu_expire( KBNODE pub_keyblock, KBNODE sec_keyblock )
3570 {
3571     int n1, signumber, rc;
3572     u32 expiredate;
3573     int mainkey=0;
3574     PKT_secret_key *sk;    /* copy of the main sk */
3575     PKT_public_key *main_pk, *sub_pk;
3576     PKT_user_id *uid;
3577     KBNODE node;
3578     u32 keyid[2];
3579
3580     if( count_selected_keys( sec_keyblock ) ) {
3581         tty_printf(_("Please remove selections from the secret keys.\n"));
3582         return 0;
3583     }
3584
3585     n1 = count_selected_keys( pub_keyblock );
3586     if( n1 > 1 ) {
3587         tty_printf(_("Please select at most one subkey.\n"));
3588         return 0;
3589     }
3590     else if( n1 )
3591         tty_printf(_("Changing expiration time for a subkey.\n"));
3592     else
3593       {
3594         tty_printf(_("Changing expiration time for the primary key.\n"));
3595         mainkey=1;
3596         no_primary_warning(pub_keyblock);
3597       }
3598
3599     expiredate = ask_expiredate();
3600     node = find_kbnode( sec_keyblock, PKT_SECRET_KEY );
3601     sk = copy_secret_key( NULL, node->pkt->pkt.secret_key);
3602
3603     /* Now we can actually change the self signature(s) */
3604     main_pk = sub_pk = NULL;
3605     uid = NULL;
3606     signumber = 0;
3607     for( node=pub_keyblock; node; node = node->next ) {
3608         if( node->pkt->pkttype == PKT_PUBLIC_KEY ) {
3609             main_pk = node->pkt->pkt.public_key;
3610             keyid_from_pk( main_pk, keyid );
3611             main_pk->expiredate = expiredate;
3612         }
3613         else if( node->pkt->pkttype == PKT_PUBLIC_SUBKEY
3614                  && (node->flag & NODFLG_SELKEY ) ) {
3615             sub_pk = node->pkt->pkt.public_key;
3616             sub_pk->expiredate = expiredate;
3617         }
3618         else if( node->pkt->pkttype == PKT_USER_ID )
3619             uid = node->pkt->pkt.user_id;
3620         else if( main_pk && node->pkt->pkttype == PKT_SIGNATURE
3621                  && ( mainkey || sub_pk ) ) {
3622             PKT_signature *sig = node->pkt->pkt.signature;
3623             if( keyid[0] == sig->keyid[0] && keyid[1] == sig->keyid[1]
3624                 && ( (mainkey && uid
3625                       && uid->created && (sig->sig_class&~3) == 0x10)
3626                      || (!mainkey && sig->sig_class == 0x18)  )
3627                 && sig->flags.chosen_selfsig )
3628               {
3629                 /* this is a selfsignature which is to be replaced */
3630                 PKT_signature *newsig;
3631                 PACKET *newpkt;
3632                 KBNODE sn;
3633                 int signumber2 = 0;
3634
3635                 signumber++;
3636
3637                 if( (mainkey && main_pk->version < 4)
3638                     || (!mainkey && sub_pk->version < 4 ) ) {
3639                     log_info(_(
3640                         "You can't change the expiration date of a v3 key\n"));
3641                     free_secret_key( sk );
3642                     return 0;
3643                 }
3644
3645                 /* find the corresponding secret self-signature */
3646                 for( sn=sec_keyblock; sn; sn = sn->next ) {
3647                     if( sn->pkt->pkttype == PKT_SIGNATURE ) {
3648                         PKT_signature *b = sn->pkt->pkt.signature;
3649                         if( keyid[0] == b->keyid[0] && keyid[1] == b->keyid[1]
3650                             && sig->sig_class == b->sig_class
3651                             && ++signumber2 == signumber )
3652                             break;
3653                     }
3654                 }
3655                 if( !sn )
3656                     log_info(_("No corresponding signature in secret ring\n"));
3657
3658                 if( mainkey )
3659                   rc = update_keysig_packet(&newsig, sig, main_pk, uid, NULL,
3660                                             sk, keygen_add_key_expire, main_pk);
3661                 else
3662                   rc = update_keysig_packet(&newsig, sig, main_pk, NULL, sub_pk,
3663                                             sk, keygen_add_key_expire, sub_pk );
3664                 if( rc ) {
3665                     log_error("make_keysig_packet failed: %s\n",
3666                                                     g10_errstr(rc));
3667                     free_secret_key( sk );
3668                     return 0;
3669                 }
3670                 /* replace the packet */
3671                 newpkt = xmalloc_clear( sizeof *newpkt );
3672                 newpkt->pkttype = PKT_SIGNATURE;
3673                 newpkt->pkt.signature = newsig;
3674                 free_packet( node->pkt );
3675                 xfree( node->pkt );
3676                 node->pkt = newpkt;
3677                 if( sn ) {
3678                     newpkt = xmalloc_clear( sizeof *newpkt );
3679                     newpkt->pkttype = PKT_SIGNATURE;
3680                     newpkt->pkt.signature = copy_signature( NULL, newsig );
3681                     free_packet( sn->pkt );
3682                     xfree( sn->pkt );
3683                     sn->pkt = newpkt;
3684                 }
3685                 sub_pk = NULL;
3686             }
3687         }
3688     }
3689
3690     free_secret_key( sk );
3691     update_trust=1;
3692     return 1;
3693 }
3694
3695 static int
3696 menu_backsign(KBNODE pub_keyblock,KBNODE sec_keyblock)
3697 {
3698   int rc,modified=0;
3699   PKT_public_key *main_pk;
3700   PKT_secret_key *main_sk,*sub_sk=NULL;
3701   KBNODE node;
3702   u32 timestamp;
3703
3704   assert(pub_keyblock->pkt->pkttype==PKT_PUBLIC_KEY);
3705   assert(sec_keyblock->pkt->pkttype==PKT_SECRET_KEY);
3706
3707   merge_keys_and_selfsig(pub_keyblock);
3708   main_pk=pub_keyblock->pkt->pkt.public_key;
3709   main_sk=copy_secret_key(NULL,sec_keyblock->pkt->pkt.secret_key);
3710   keyid_from_pk(main_pk,NULL);
3711
3712   /* We use the same timestamp for all backsigs so that we don't
3713      reveal information about the used machine.  */
3714   timestamp = make_timestamp ();
3715
3716   for(node=pub_keyblock;node;node=node->next)
3717     {
3718       PKT_public_key *sub_pk=NULL;
3719       KBNODE node2,sig_pk=NULL,sig_sk=NULL;
3720       char *passphrase;
3721
3722       if(sub_sk)
3723         {
3724           free_secret_key(sub_sk);
3725           sub_sk=NULL;
3726         }
3727
3728       /* Find a signing subkey with no backsig */
3729       if(node->pkt->pkttype==PKT_PUBLIC_SUBKEY)
3730         {
3731           if(node->pkt->pkt.public_key->pubkey_usage&PUBKEY_USAGE_SIG)
3732             {
3733               if(node->pkt->pkt.public_key->backsig)
3734                 tty_printf(_("signing subkey %s is already cross-certified\n"),
3735                            keystr_from_pk(node->pkt->pkt.public_key));
3736               else
3737                 sub_pk=node->pkt->pkt.public_key;
3738             }
3739           else
3740             tty_printf(_("subkey %s does not sign and so does"
3741                          " not need to be cross-certified\n"),
3742                        keystr_from_pk(node->pkt->pkt.public_key));
3743         }
3744
3745       if(!sub_pk)
3746         continue;
3747
3748       /* Find the selected selfsig on this subkey */
3749       for(node2=node->next;
3750           node2 && node2->pkt->pkttype==PKT_SIGNATURE;
3751           node2=node2->next)
3752         if(node2->pkt->pkt.signature->version>=4
3753            && node2->pkt->pkt.signature->flags.chosen_selfsig)
3754           {
3755             sig_pk=node2;
3756             break;
3757           }
3758
3759       if(!sig_pk)
3760         continue;
3761
3762       /* Find the secret subkey that matches the public subkey */
3763       for(node2=sec_keyblock;node2;node2=node2->next)
3764         if(node2->pkt->pkttype==PKT_SECRET_SUBKEY
3765            && !cmp_public_secret_key(sub_pk,node2->pkt->pkt.secret_key))
3766           {
3767             sub_sk=copy_secret_key(NULL,node2->pkt->pkt.secret_key);
3768             break;
3769           }
3770
3771       if(!sub_sk)
3772         {
3773           tty_printf(_("no secret subkey for public subkey %s - ignoring\n"),
3774                      keystr_from_pk(sub_pk));
3775           continue;
3776         }
3777
3778       /* Now finally find the matching selfsig on the secret subkey.
3779          We can't use chosen_selfsig here (it's not set for secret
3780          keys), so we just pick the selfsig with the right class.
3781          This is what menu_expire does as well. */
3782       for(node2=node2->next;
3783           node2 && node2->pkt->pkttype!=PKT_SECRET_SUBKEY;
3784           node2=node2->next)
3785         if(node2->pkt->pkttype==PKT_SIGNATURE
3786            && node2->pkt->pkt.signature->version>=4