/* trustdb.c * Copyright (C) 1998 Free Software Foundation, Inc. * * This file is part of GNUPG. * * GNUPG is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * GNUPG is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA */ #include #include #include #include #include #include #include #include #include #include #include #include "errors.h" #include "iobuf.h" #include "keydb.h" #include "memory.h" #include "util.h" #include "trustdb.h" #include "options.h" #include "packet.h" #include "main.h" #include "i18n.h" #include "tdbio.h" #if MAX_FINGERPRINT_LEN > 20 #error Must change structure of trustdb #endif typedef struct local_id_info *LOCAL_ID_INFO; struct local_id_info { LOCAL_ID_INFO next; ulong lid; unsigned flag; }; typedef struct trust_info TRUST_INFO; struct trust_info { ulong lid; unsigned trust; }; typedef struct trust_seg_list *TRUST_SEG_LIST; struct trust_seg_list { TRUST_SEG_LIST next; int nseg; /* number of segmens */ int dup; TRUST_INFO seg[1]; /* segment list */ }; struct recno_list_struct { struct recno_list_struct *next; ulong recno; int type; }; typedef struct recno_list_struct *RECNO_LIST; static int walk_sigrecs( SIGREC_CONTEXT *c ); static LOCAL_ID_INFO *new_lid_table(void); static void release_lid_table( LOCAL_ID_INFO *tbl ); static int ins_lid_table_item( LOCAL_ID_INFO *tbl, ulong lid, unsigned flag ); static int qry_lid_table_flag( LOCAL_ID_INFO *tbl, ulong lid, unsigned *flag ); static void upd_lid_table_flag( LOCAL_ID_INFO *tbl, ulong lid, unsigned flag ); static void print_user_id( const char *text, u32 *keyid ); static int do_list_path( TRUST_INFO *stack, int depth, int max_depth, LOCAL_ID_INFO *lids, TRUST_SEG_LIST *tslist ); static int list_sigs( ulong pubkey_id ); static int propagate_trust( TRUST_SEG_LIST tslist ); static int do_check( TRUSTREC *drec, unsigned *trustlevel ); static int get_dir_record( PKT_public_key *pk, TRUSTREC *rec ); /* a table used to keep track of ultimately trusted keys * which are the ones from our secrings */ static LOCAL_ID_INFO *ultikey_table; static ulong last_trust_web_key; static TRUST_SEG_LIST last_trust_web_tslist; #define HEXTOBIN(a) ( (a) >= '0' && (a) <= '9' ? ((a)-'0') : \ (a) >= 'A' && (a) <= 'F' ? ((a)-'A'+10) : ((a)-'a'+10)) /********************************************** *********** record read write ************** **********************************************/ static void die_invalid_db() { log_error(_( "The trust DB is corrupted; please run \"gpgm --fix-trust-db\".\n") ); g10_exit(2); } /**************** * Read a record but die if it does not exist */ static void read_record( ulong recno, TRUSTREC *rec, int rectype ) { int rc = tdbio_read_record( recno, rec, rectype ); if( !rc ) return; log_error("trust record %lu, req type %d: read failed: %s\n", recno, rectype, g10_errstr(rc) ); die_invalid_db(); } /**************** * Wirte a record but die on error */ static void write_record( TRUSTREC *rec ) { int rc = tdbio_write_record( rec ); if( !rc ) return; log_error("trust record %lu, type %d: write failed: %s\n", rec->recnum, rec->rectype, g10_errstr(rc) ); die_invalid_db(); } /**************** * Delete a record but die on error */ static void delete_record( ulong recno ) { int rc = tdbio_delete_record( recno ); if( !rc ) return; log_error("trust record %lu: delete failed: %s\n", recno, g10_errstr(rc) ); die_invalid_db(); } /**************** * sync the db */ static void do_sync( ) { int rc = tdbio_sync(); if( !rc ) return; log_error("trust db: sync failed: %s\n", g10_errstr(rc) ); g10_exit(2); } /********************************************** ************* list helpers ******************* **********************************************/ /**************** * Insert a new item into a recno list */ static void ins_recno_list( RECNO_LIST *head, ulong recno, int type ) { RECNO_LIST item = m_alloc( sizeof *item ); item->recno = recno; item->type = type; item->next = *head; *head = item; } static RECNO_LIST qry_recno_list( RECNO_LIST list, ulong recno, int type ) { for( ; list; list = list->next ) { if( list->recno == recno && (!type || list->type == type) ) return list; } return NULL; } static void rel_recno_list( RECNO_LIST *head ) { RECNO_LIST r, r2; for(r = *head; r; r = r2 ) { r2 = r->next; m_free(r); } *head = NULL; } static LOCAL_ID_INFO * new_lid_table(void) { return m_alloc_clear( 16 * sizeof(LOCAL_ID_INFO)); } static void release_lid_table( LOCAL_ID_INFO *tbl ) { LOCAL_ID_INFO a, a2; int i; for(i=0; i < 16; i++ ) { for(a=tbl[i]; a; a = a2 ) { a2 = a->next; m_free(a); } } m_free(tbl); } /**************** * Add a new item to the table or return 1 if we already have this item * fixme: maybe it's a good idea to take items from an unused item list. */ static int ins_lid_table_item( LOCAL_ID_INFO *tbl, ulong lid, unsigned flag ) { LOCAL_ID_INFO a; for( a = tbl[lid & 0x0f]; a; a = a->next ) if( a->lid == lid ) return 1; a = m_alloc( sizeof *a ); a->lid = lid; a->flag = flag; a->next = tbl[lid & 0x0f]; tbl[lid & 0x0f] = a; return 0; } static int qry_lid_table_flag( LOCAL_ID_INFO *tbl, ulong lid, unsigned *flag ) { LOCAL_ID_INFO a; for( a = tbl[lid & 0x0f]; a; a = a->next ) if( a->lid == lid ) { if( flag ) *flag = a->flag; return 0; } return -1; } static void upd_lid_table_flag( LOCAL_ID_INFO *tbl, ulong lid, unsigned flag ) { LOCAL_ID_INFO a; for( a = tbl[lid & 0x0f]; a; a = a->next ) if( a->lid == lid ) { a->flag = flag; return; } BUG(); } /**************** * Return the keyid from the primary key identified by LID. */ int keyid_from_lid( ulong lid, u32 *keyid ) { TRUSTREC rec; int rc; rc = tdbio_read_record( lid, &rec, RECTYPE_DIR ); if( rc ) { log_error("error reading dir record for LID %lu: %s\n", lid, g10_errstr(rc)); return G10ERR_TRUSTDB; } if( !rec.r.dir.keylist ) { log_error("no primary key for LID %lu\n", lid ); return G10ERR_TRUSTDB; } rc = tdbio_read_record( rec.r.dir.keylist, &rec, RECTYPE_KEY ); if( rc ) { log_error("error reading primary key for LID %lu: %s\n", lid, g10_errstr(rc)); return G10ERR_TRUSTDB; } keyid_from_fingerprint( rec.r.key.fingerprint, rec.r.key.fingerprint_len, keyid ); return 0; } ulong lid_from_keyblock( KBNODE keyblock ) { KBNODE node = find_kbnode( keyblock, PKT_PUBLIC_KEY ); PKT_public_key *pk; if( !node ) BUG(); pk = node->pkt->pkt.public_key; if( !pk->local_id ) { TRUSTREC rec; get_dir_record( pk, &rec ); } return pk->local_id; } /**************** * Walk through the signatures of a public key. * The caller must provide a context structure, with all fields set * to zero, but the local_id field set to the requested key; * This function does not change this field. On return the context * is filled with the local-id of the signature and the signature flag. * No fields should be changed (clearing all fields and setting * pubkeyid is okay to continue with an other pubkey) * Returns: 0 - okay, -1 for eof (no more sigs) or any other errorcode */ static int walk_sigrecs( SIGREC_CONTEXT *c ) { TRUSTREC *r; ulong rnum; if( c->ctl.eof ) return -1; r = &c->ctl.rec; if( !c->ctl.init_done ) { c->ctl.init_done = 1; read_record( c->lid, r, RECTYPE_DIR ); c->ctl.nextuid = r->r.dir.uidlist; /* force a read (what a bad bad hack) */ c->ctl.index = SIGS_PER_RECORD; r->r.sig.next = 0; } /* need a loop to skip over deleted sigs */ do { if( c->ctl.index >= SIGS_PER_RECORD ) { /* read the record */ rnum = r->r.sig.next; if( !rnum && c->ctl.nextuid ) { /* read next uid record */ read_record( c->ctl.nextuid, r, RECTYPE_UID ); c->ctl.nextuid = r->r.uid.next; rnum = r->r.uid.siglist; } if( !rnum ) { c->ctl.eof = 1; return -1; /* return eof */ } read_record( rnum, r, RECTYPE_SIG ); if( r->r.sig.lid != c->lid ) { log_error(_("chained sigrec %lu has a wrong owner\n"), rnum ); c->ctl.eof = 1; die_invalid_db(); } c->ctl.index = 0; } } while( !r->r.sig.sig[c->ctl.index++].lid ); c->sig_lid = r->r.sig.sig[c->ctl.index-1].lid; c->sig_flag = r->r.sig.sig[c->ctl.index-1].flag; return 0; } /*********************************************** ************* Trust stuff ****************** ***********************************************/ /**************** * Verify that all our public keys are in the trustDB. */ static int verify_own_keys() { int rc; void *enum_context = NULL; PKT_secret_key *sk = m_alloc_clear( sizeof *sk ); PKT_public_key *pk = m_alloc_clear( sizeof *pk ); u32 keyid[2]; while( !(rc=enum_secret_keys( &enum_context, sk, 0 ) ) ) { keyid_from_sk( sk, keyid ); if( DBG_TRUST ) log_debug("key %08lX: checking secret key\n", (ulong)keyid[1] ); if( is_secret_key_protected( sk ) < 1 ) log_info("note: secret key %08lX is NOT protected.\n", (ulong)keyid[1] ); /* see whether we can access the public key of this secret key */ memset( pk, 0, sizeof *pk ); rc = get_pubkey( pk, keyid ); if( rc ) { log_info(_("key %08lX: secret key without public key - skipped\n"), (ulong)keyid[1] ); goto skip; } if( cmp_public_secret_key( pk, sk ) ) { log_info(_("key %08lX: secret and public key don't match\n"), (ulong)keyid[1] ); goto skip; } /* make sure that the pubkey is in the trustdb */ rc = query_trust_record( pk ); if( rc == -1 ) { /* put it into the trustdb */ rc = insert_trust_record( pk ); if( rc ) { log_error(_("key %08lX: can't put it into the trustdb\n"), (ulong)keyid[1] ); goto skip; } } else if( rc ) { log_error(_("key %08lX: query record failed\n"), (ulong)keyid[1] ); goto skip; } if( DBG_TRUST ) log_debug("key %08lX.%lu: stored into ultikey_table\n", (ulong)keyid[1], pk->local_id ); if( ins_lid_table_item( ultikey_table, pk->local_id, 0 ) ) log_error(_("key %08lX: already in secret key table\n"), (ulong)keyid[1]); else if( opt.verbose ) log_info(_("key %08lX: accepted as secret key.\n"), (ulong)keyid[1]); skip: release_secret_key_parts( sk ); release_public_key_parts( pk ); } if( rc != -1 ) log_error(_("enum_secret_keys failed: %s\n"), g10_errstr(rc) ); else rc = 0; enum_secret_keys( &enum_context, NULL, 0 ); /* free context */ free_secret_key( sk ); free_public_key( pk ); return rc; } static void print_user_id( const char *text, u32 *keyid ) { char *p; size_t n; p = get_user_id( keyid, &n ); if( *text ) { fputs( text, stdout); putchar(' '); } putchar('\"'); print_string( stdout, p, n, 0 ); putchar('\"'); putchar('\n'); m_free(p); } static void print_keyid( FILE *fp, ulong lid ) { u32 ki[2]; if( keyid_from_lid( lid, ki ) ) fprintf(fp, "????????.%lu", lid ); else fprintf(fp, "%08lX.%lu", (ulong)ki[1], lid ); } static void print_trust( FILE *fp, unsigned trust ) { int c; switch( trust ) { case TRUST_UNKNOWN: c = 'o'; break; case TRUST_EXPIRED: c = 'e'; break; case TRUST_UNDEFINED: c = 'q'; break; case TRUST_NEVER: c = 'n'; break; case TRUST_MARGINAL: c = 'm'; break; case TRUST_FULLY: c = 'f'; break; case TRUST_ULTIMATE: c = 'u'; break; default: fprintf(fp, "%02x", trust ); return; } putc(c, fp); } /* (a non-recursive algorithm would be easier) */ static int do_list_sigs( ulong root, ulong pubkey, int depth, LOCAL_ID_INFO *lids, unsigned *lineno ) { SIGREC_CONTEXT sx; int rc; u32 keyid[2]; memset( &sx, 0, sizeof sx ); sx.lid = pubkey; for(;;) { rc = walk_sigrecs( &sx ); if( rc ) break; rc = keyid_from_lid( sx.sig_lid, keyid ); if( rc ) { printf("%6u: %*s????????.%lu:%02x\n", *lineno, depth*4, "", sx.sig_lid, sx.sig_flag ); ++*lineno; } else { printf("%6u: %*s%08lX.%lu:%02x ", *lineno, depth*4, "", (ulong)keyid[1], sx.sig_lid, sx.sig_flag ); /* check whether we already checked this pubkey */ if( !qry_lid_table_flag( ultikey_table, sx.sig_lid, NULL ) ) { print_user_id("[ultimately trusted]", keyid); ++*lineno; } else if( sx.sig_lid == pubkey ) { printf("[self-signature]\n"); ++*lineno; } else if( sx.sig_lid == root ) { printf("[closed]\n"); ++*lineno; } else if( ins_lid_table_item( lids, sx.sig_lid, *lineno ) ) { unsigned refline; qry_lid_table_flag( lids, sx.sig_lid, &refline ); printf("[see line %u]\n", refline); ++*lineno; } else if( depth+1 >= MAX_LIST_SIGS_DEPTH ) { print_user_id( "[too deeply nested]", keyid ); ++*lineno; } else { print_user_id( "", keyid ); ++*lineno; rc = do_list_sigs( root, sx.sig_lid, depth+1, lids, lineno ); if( rc ) break; } } } return rc==-1? 0 : rc; } /**************** * List all signatures of a public key */ static int list_sigs( ulong pubkey_id ) { int rc; u32 keyid[2]; LOCAL_ID_INFO *lids; unsigned lineno = 1; rc = keyid_from_lid( pubkey_id, keyid ); if( rc ) return rc; printf("Signatures of %08lX.%lu ", (ulong)keyid[1], pubkey_id ); print_user_id("", keyid); printf("----------------------\n"); lids = new_lid_table(); rc = do_list_sigs( pubkey_id, pubkey_id, 0, lids, &lineno ); putchar('\n'); release_lid_table(lids); return rc; } /**************** * List all records of a public key */ static int list_records( ulong lid ) { int rc; TRUSTREC dr, ur, rec; ulong recno; rc = tdbio_read_record( lid, &dr, RECTYPE_DIR ); if( rc ) { log_error("lid %lu: read dir record failed: %s\n", lid, g10_errstr(rc)); return rc; } tdbio_dump_record( &dr, stdout ); for( recno=dr.r.dir.keylist; recno; recno = rec.r.key.next ) { rc = tdbio_read_record( recno, &rec, RECTYPE_KEY ); if( rc ) { log_error("lid %lu: read key record failed: %s\n", lid, g10_errstr(rc)); return rc; } tdbio_dump_record( &rec, stdout ); } for( recno=dr.r.dir.uidlist; recno; recno = ur.r.uid.next ) { rc = tdbio_read_record( recno, &ur, RECTYPE_UID ); if( rc ) { log_error("lid %lu: read uid record failed: %s\n", lid, g10_errstr(rc)); return rc; } tdbio_dump_record( &ur, stdout ); /* preference records */ for(recno=ur.r.uid.prefrec; recno; recno = rec.r.pref.next ) { rc = tdbio_read_record( recno, &rec, RECTYPE_PREF ); if( rc ) { log_error("lid %lu: read pref record failed: %s\n", lid, g10_errstr(rc)); return rc; } tdbio_dump_record( &rec, stdout ); } /* sig records */ for(recno=ur.r.uid.siglist; recno; recno = rec.r.sig.next ) { rc = tdbio_read_record( recno, &rec, RECTYPE_SIG ); if( rc ) { log_error("lid %lu: read sig record failed: %s\n", lid, g10_errstr(rc)); return rc; } tdbio_dump_record( &rec, stdout ); } } /* add cache record dump here */ return rc; } /**************** * Function to collect all trustpaths */ static int do_list_path( TRUST_INFO *stack, int depth, int max_depth, LOCAL_ID_INFO *lids, TRUST_SEG_LIST *tslist ) { SIGREC_CONTEXT sx; unsigned last_depth; int rc; assert(depth); /*printf("%2lu/%d: scrutinizig\n", stack[depth-1], depth);*/ if( depth >= max_depth || depth >= MAX_LIST_SIGS_DEPTH-1 ) { /*printf("%2lu/%d: too deeply nested\n", stack[depth-1], depth);*/ return 0; } memset( &sx, 0, sizeof sx ); sx.lid = stack[depth-1].lid; /* loop over all signatures. If we do not have any, try to create them */ while( !(rc = walk_sigrecs( &sx )) ) { TRUST_SEG_LIST tsl, t2, tl; int i; if( !(sx.sig_flag & SIGF_CHECKED) ) continue; /* only checked sigs */ if( !(sx.sig_flag & SIGF_VALID) ) continue; /* and, of course, only valid sigs */ if( (sx.sig_flag & SIGF_REVOKED) ) continue; /* and skip revoked sigs */ stack[depth].lid = sx.sig_lid; stack[depth].trust = 0; if( qry_lid_table_flag( lids, sx.sig_lid, &last_depth) ) { /*printf("%2lu/%d: marked\n", sx.sig_lid, depth );*/ ins_lid_table_item( lids, sx.sig_lid, depth); last_depth = depth; } else if( depth < last_depth ) { /*printf("%2lu/%d: last_depth=%u - updated\n", sx.sig_lid, depth, last_depth);*/ last_depth = depth; upd_lid_table_flag( lids, sx.sig_lid, depth); } if( last_depth < depth ) /*printf("%2lu/%d: already visited\n", sx.sig_lid, depth)*/; else if( !qry_lid_table_flag( ultikey_table, sx.sig_lid, NULL ) ) { /* found end of path; store it, ordered by path length */ tsl = m_alloc( sizeof *tsl + depth*sizeof(TRUST_INFO) ); tsl->nseg = depth+1; tsl->dup = 0; for(i=0; i <= depth; i++ ) tsl->seg[i] = stack[i]; for(t2=*tslist,tl=NULL; t2; tl=t2, t2 = t2->next ) if( depth < t2->nseg ) break; if( !tl ) { tsl->next = t2; *tslist = tsl; } else { tsl->next = t2; tl->next = tsl; } /*putchar('.'); fflush(stdout);*/ /*printf("%2lu/%d: found\n", sx.sig_lid, depth);*/ } else { rc = do_list_path( stack, depth+1, max_depth, lids, tslist); if( rc && rc != -1 ) break; } } return rc==-1? 0 : rc; } /**************** * Make a list of trust paths */ static int make_tsl( ulong lid, TRUST_SEG_LIST *ret_tslist ) { int i, rc; LOCAL_ID_INFO *lids = new_lid_table(); TRUST_INFO stack[MAX_LIST_SIGS_DEPTH]; TRUST_SEG_LIST tsl, tslist; int max_depth = 4; tslist = *ret_tslist = NULL; if( !qry_lid_table_flag( ultikey_table, lid, NULL ) ) { tslist = m_alloc( sizeof *tslist ); tslist->nseg = 1; tslist->dup = 0; tslist->seg[0].lid = lid; tslist->seg[0].trust = 0; tslist->next = NULL; rc = 0; } else { stack[0].lid = lid; stack[0].trust = 0; rc = do_list_path( stack, 1, max_depth, lids, &tslist ); } if( !rc ) { /* wipe out duplicates */ LOCAL_ID_INFO *work = new_lid_table(); for( tsl=tslist; tsl; tsl = tsl->next ) { for(i=1; i < tsl->nseg-1; i++ ) { if( ins_lid_table_item( work, tsl->seg[i].lid, 0 ) ) { tsl->dup = 1; /* mark as duplicate */ break; } } } release_lid_table(work); *ret_tslist = tslist; } else { /* error: release tslist */ while( tslist ) { tsl = tslist->next; m_free(tslist); tslist = tsl; } } release_lid_table(lids); return rc; } /**************** * Given a trust segment list tslist, walk over all paths and fill in * the trust information for each segment. What this function does is * to assign a trustvalue to the first segment (which is the requested key) * of each path. * * FIXME: We have to do more thinking here. e.g. we should never increase * the trust value. * * Do not do it for duplicates. */ static int propagate_trust( TRUST_SEG_LIST tslist ) { int i; unsigned trust, tr; TRUST_SEG_LIST tsl; for(tsl = tslist; tsl; tsl = tsl->next ) { if( tsl->dup ) continue; assert( tsl->nseg ); /* the last segment is always an ultimately trusted one, so we can * assign a fully trust to the next one */ i = tsl->nseg-1; tsl->seg[i].trust = TRUST_ULTIMATE; trust = TRUST_FULLY; for(i-- ; i >= 0; i-- ) { tsl->seg[i].trust = trust; if( i > 0 ) { /* get the trust of this pubkey */ tr = get_ownertrust( tsl->seg[i].lid ); if( tr < trust ) trust = tr; } } } return 0; } /**************** * we have the pubkey record and all needed informations are in the trustdb * but nothing more is known. * (this function may re-read the dir record dr) */ static int do_check( TRUSTREC *dr, unsigned *trustlevel ) { int i, rc=0; TRUST_SEG_LIST tsl, tsl2, tslist; int marginal, fully; int fully_needed = opt.completes_needed; int marginal_needed = opt.marginals_needed; unsigned tflags = 0; assert( fully_needed > 0 && marginal_needed > 1 ); *trustlevel = TRUST_UNDEFINED; if( !dr->r.dir.keylist ) { log_error("Ooops, no keys\n"); return G10ERR_TRUSTDB; } if( !dr->r.dir.uidlist ) { log_error("Ooops, no user ids\n"); return G10ERR_TRUSTDB; } /* did we already check the signatures */ /* fixme:.... */ if( dr->r.dir.dirflags & DIRF_REVOKED ) tflags |= TRUST_FLAG_REVOKED; #if 0 /* Do we still need this?? */ if( !rc && !dr->r.dir.siglist ) { /* We do not have any signatures; check whether it is one of our * secret keys */ if( !qry_lid_table_flag( ultikey_table, dr->r.dir.lid, NULL ) ) *trustlevel = tflags | TRUST_ULTIMATE; return 0; } #endif if( rc ) return rc; /* error while looking for sigrec or building sigrecs */ /* fixme: take it from the cache if it is valid */ /* Make a list of all possible trust-paths */ rc = make_tsl( dr->r.dir.lid, &tslist ); if( rc ) return rc; rc = propagate_trust( tslist ); if( rc ) return rc; for(tsl = tslist; tsl; tsl = tsl->next ) { if( tsl->dup ) continue; if( opt.verbose ) { log_info("trust path:" ); for(i=0; i < tsl->nseg; i++ ) { putc(' ',stderr); print_keyid( stderr, tsl->seg[i].lid ); putc(':',stderr); print_trust( stderr, tsl->seg[i].trust ); } putc('\n',stderr); } } /* and see whether there is a trusted path. * We only have to look at the first segment, because * propagate_trust has investigated all other segments */ marginal = fully = 0; for(tsl = tslist; tsl; tsl = tsl->next ) { if( tsl->dup ) continue; if( tsl->seg[0].trust == TRUST_ULTIMATE ) { *trustlevel = tflags | TRUST_ULTIMATE; /* our own key */ break; } if( tsl->seg[0].trust == TRUST_FULLY ) { marginal++; fully++; } else if( tsl->seg[0].trust == TRUST_MARGINAL ) marginal++; if( fully >= fully_needed ) { *trustlevel = tflags | TRUST_FULLY; break; } } if( !tsl && marginal >= marginal_needed ) *trustlevel = tflags | TRUST_MARGINAL; /* cache the tslist */ if( last_trust_web_key ) { for( tsl = last_trust_web_tslist; tsl; tsl = tsl2 ) { tsl2 = tsl->next; m_free(tsl); } } last_trust_web_key = dr->r.dir.lid; last_trust_web_tslist = tslist; return 0; } /*********************************************** **************** API ************************ ***********************************************/ /**************** * Perform some checks over the trustdb * level 0: only open the db * 1: used for initial program startup */ int init_trustdb( int level, const char *dbname ) { int rc=0; if( !ultikey_table ) ultikey_table = new_lid_table(); if( !level || level==1 ) { rc = tdbio_set_dbname( dbname, !!level ); if( rc ) return rc; if( !level ) return 0; /* verify that our own keys are in the trustDB * or move them to the trustdb. */ rc = verify_own_keys(); /* should we check whether there is no other ultimately trusted * key in the database? */ } else BUG(); return rc; } void list_trustdb( const char *username ) { TRUSTREC rec; if( username && *username == '#' ) { int rc; ulong lid = atoi(username+1); if( (rc = list_records( lid)) ) log_error("user '%s' read problem: %s\n", username, g10_errstr(rc)); else if( (rc = list_sigs( lid )) ) log_error("user '%s' list problem: %s\n", username, g10_errstr(rc)); } else if( username ) { PKT_public_key *pk = m_alloc_clear( sizeof *pk ); int rc; if( (rc = get_pubkey_byname( pk, username )) ) log_error("user '%s' not found: %s\n", username, g10_errstr(rc) ); else if( (rc=tdbio_search_dir_bypk( pk, &rec )) && rc != -1 ) log_error("problem finding '%s' in trustdb: %s\n", username, g10_errstr(rc)); else if( rc == -1 ) log_error("user '%s' not in trustdb\n", username); else if( (rc = list_records( pk->local_id)) ) log_error("user '%s' read problem: %s\n", username, g10_errstr(rc)); else if( (rc = list_sigs( pk->local_id )) ) log_error("user '%s' list problem: %s\n", username, g10_errstr(rc)); free_public_key( pk ); } else { ulong recnum; int i; printf("TrustDB: %s\n", tdbio_get_dbname() ); for(i=9+strlen(tdbio_get_dbname()); i > 0; i-- ) putchar('-'); putchar('\n'); for(recnum=0; !tdbio_read_record( recnum, &rec, 0); recnum++ ) tdbio_dump_record( &rec, stdout ); } } /**************** * Print a list of all defined owner trust value. */ void export_ownertrust() { TRUSTREC rec; TRUSTREC rec2; ulong recnum; int i; byte *p; int rc; for(recnum=0; !tdbio_read_record( recnum, &rec, 0); recnum++ ) { if( rec.rectype == RECTYPE_DIR ) { if( !rec.r.dir.keylist ) { log_error("Oops; directory record w/o primary key\n"); continue; } if( !rec.r.dir.ownertrust ) continue; rc = tdbio_read_record( rec.r.dir.keylist, &rec2, RECTYPE_KEY); if( rc ) { log_error("error reading key record: %s\n", g10_errstr(rc)); continue; } p = rec2.r.key.fingerprint; for(i=0; i < rec2.r.key.fingerprint_len; i++, p++ ) printf("%02X", *p ); printf(":%u:\n", (unsigned)rec.r.dir.ownertrust ); } } } void import_ownertrust( const char *fname ) { FILE *fp; int is_stdin=0; char line[256]; char *p; size_t n, fprlen; unsigned otrust; if( !fname || (*fname == '-' && !fname[1]) ) { fp = stdin; fname = "[stdin]"; is_stdin = 1; } else if( !(fp = fopen( fname, "r" )) ) { log_error_f(fname, _("can't open file: %s\n"), strerror(errno) ); return; } while( fgets( line, DIM(line)-1, fp ) ) { TRUSTREC rec; int rc; if( !*line || *line == '#' ) continue; n = strlen(line); if( line[n-1] != '\n' ) { log_error_f(fname, "line to long\n" ); break; /* can't continue */ } for(p = line; *p && *p != ':' ; p++ ) if( !isxdigit(*p) ) break; if( *p != ':' ) { log_error_f(fname, "error: missing colon\n" ); continue; } fprlen = p - line; if( fprlen != 32 && fprlen != 40 ) { log_error_f(fname, "error: invalid fingerprint\n" ); continue; } if( sscanf(p, ":%u:", &otrust ) != 1 ) { log_error_f(fname, "error: no otrust value\n" ); continue; } if( !otrust ) continue; /* no otrust defined - no need to update or insert */ /* convert the ascii fingerprint to binary */ for(p=line, fprlen=0; *p != ':'; p += 2 ) line[fprlen++] = HEXTOBIN(p[0]) * 16 + HEXTOBIN(p[1]); line[fprlen] = 0; repeat: rc = tdbio_search_dir_byfpr( line, fprlen, 0, &rec ); if( !rc ) { /* found: update */ if( rec.r.dir.ownertrust ) log_info("LID %lu: changing trust from %u to %u\n", rec.r.dir.lid, rec.r.dir.ownertrust, otrust ); else log_info("LID %lu: setting trust to %u\n", rec.r.dir.lid, otrust ); rec.r.dir.ownertrust = otrust; write_record( &rec ); } else if( rc == -1 ) { /* not found; get the key from the ring */ PKT_public_key *pk = m_alloc_clear( sizeof *pk ); log_info_f(fname, "key not in trustdb, searching ring.\n"); rc = get_pubkey_byfprint( pk, line, fprlen ); if( rc ) log_info_f(fname, "key not in ring: %s\n", g10_errstr(rc)); else { rc = query_trust_record( pk ); /* only as assertion */ if( rc != -1 ) log_error_f(fname, "Oops: key is now in trustdb???\n"); else { rc = insert_trust_record( pk ); if( !rc ) goto repeat; /* update the ownertrust */ log_error_f(fname, "insert trust record failed: %s\n", g10_errstr(rc) ); } } } else /* error */ log_error_f(fname, "error finding dir record: %s\n", g10_errstr(rc)); } if( ferror(fp) ) log_error_f(fname, _("read error: %s\n"), strerror(errno) ); if( !is_stdin ) fclose(fp); do_sync(); } void list_trust_path( int max_depth, const char *username ) { int rc; int wipe=0; int i; TRUSTREC rec; PKT_public_key *pk = m_alloc_clear( sizeof *pk ); if( max_depth < 0 ) { wipe = 1; max_depth = -max_depth; } if( (rc = get_pubkey_byname( pk, username )) ) log_error("user '%s' not found: %s\n", username, g10_errstr(rc) ); else if( (rc=tdbio_search_dir_bypk( pk, &rec )) && rc != -1 ) log_error("problem finding '%s' in trustdb: %s\n", username, g10_errstr(rc)); else if( rc == -1 ) { log_info("user '%s' not in trustdb - inserting\n", username); rc = insert_trust_record( pk ); if( rc ) log_error("failed to put '%s' into trustdb: %s\n", username, g10_errstr(rc)); else { assert( pk->local_id ); } } if( !rc ) { TRUST_SEG_LIST tsl, tslist = NULL; if( !qry_lid_table_flag( ultikey_table, pk->local_id, NULL ) ) { tslist = m_alloc( sizeof *tslist ); tslist->nseg = 1; tslist->dup = 0; tslist->seg[0].lid = pk->local_id; tslist->seg[0].trust = 0; tslist->next = NULL; rc = 0; } else { LOCAL_ID_INFO *lids = new_lid_table(); TRUST_INFO stack[MAX_LIST_SIGS_DEPTH]; stack[0].lid = pk->local_id; stack[0].trust = 0; rc = do_list_path( stack, 1, max_depth, lids, &tslist ); if( wipe ) { /* wipe out duplicates */ LOCAL_ID_INFO *work; work = new_lid_table(); for( tsl=tslist; tsl; tsl = tsl->next ) { for(i=1; i < tsl->nseg-1; i++ ) { if( ins_lid_table_item( work, tsl->seg[i].lid, 0 ) ) { tsl->dup = 1; /* mark as duplicate */ break; } } } release_lid_table(work); } release_lid_table(lids); } if( rc ) log_error("user '%s' list problem: %s\n", username, g10_errstr(rc)); rc = propagate_trust( tslist ); if( rc ) log_error("user '%s' trust problem: %s\n", username, g10_errstr(rc)); for(tsl = tslist; tsl; tsl = tsl->next ) { int i; if( tsl->dup ) continue; printf("trust path:" ); for(i=0; i < tsl->nseg; i++ ) { putc(' ',stdout); print_keyid( stdout, tsl->seg[i].lid ); putc(':',stdout); print_trust( stdout, tsl->seg[i].trust ); } putchar('\n'); } } free_public_key( pk ); } /**************** * Check the complete trustdb or only the entries for the given username. */ void check_trustdb( const char *username ) { TRUSTREC rec; KBNODE keyblock = NULL; KBPOS kbpos; int rc; if( username ) { rc = find_keyblock_byname( &kbpos, username ); if( !rc ) rc = read_keyblock( &kbpos, &keyblock ); if( rc ) { log_error("%s: keyblock read problem: %s\n", username, g10_errstr(rc)); } else { rc = update_trust_record( keyblock ); if( rc == -1 ) { /* not yet in trustdb: insert */ rc = insert_trust_record( find_kbnode( keyblock, PKT_PUBLIC_KEY ) ->pkt->pkt.public_key ); } if( rc ) log_error("%s: update failed: %s\n", username, g10_errstr(rc) ); else log_info("%s: updated\n", username ); } release_kbnode( keyblock ); keyblock = NULL; } else { ulong recnum; for(recnum=0; !tdbio_read_record( recnum, &rec, 0); recnum++ ) { if( rec.rectype == RECTYPE_DIR ) { TRUSTREC tmp; if( !rec.r.dir.keylist ) { log_info("lid %lu: dir record w/o key - skipped\n", recnum); continue; } read_record( rec.r.dir.keylist, &tmp, RECTYPE_KEY ); rc = get_keyblock_byfprint( &keyblock, tmp.r.key.fingerprint, tmp.r.key.fingerprint_len ); if( rc ) { log_error("lid %lu: keyblock not found: %s\n", recnum, g10_errstr(rc) ); continue; } rc = update_trust_record( keyblock ); if( rc ) log_error("lid %lu: update failed: %s\n", recnum, g10_errstr(rc) ); else log_info("lid %lu: updated\n", recnum ); release_kbnode( keyblock ); keyblock = NULL; } } } } void update_trustdb( ) { KBNODE keyblock = NULL; KBPOS kbpos; int rc; rc = enum_keyblocks( 0, &kbpos, &keyblock ); if( !rc ) { while( !(rc = enum_keyblocks( 1, &kbpos, &keyblock )) ) { rc = update_trust_record( keyblock ); if( rc == -1 ) { /* not yet in trustdb: insert */ PKT_public_key *pk = find_kbnode( keyblock, PKT_PUBLIC_KEY ) ->pkt->pkt.public_key; rc = insert_trust_record( pk ); if( rc && !pk->local_id ) log_error("lid ?: insert failed: %s\n", g10_errstr(rc) ); else if( rc ) log_error("lid %lu: insert failed: %s\n", pk->local_id, g10_errstr(rc) ); else log_info("lid %lu: inserted\n", pk->local_id ); } else if( rc ) log_error("lid %lu: update failed: %s\n", lid_from_keyblock(keyblock), g10_errstr(rc) ); else log_info("lid %lu: updated\n", lid_from_keyblock(keyblock) ); release_kbnode( keyblock ); keyblock = NULL; } } if( rc && rc != -1 ) log_error("enum_keyblocks failed: %s\n", g10_errstr(rc)); enum_keyblocks( 2, &kbpos, &keyblock ); /* close */ release_kbnode( keyblock ); } /**************** * Get the trustlevel for this PK. * Note: This does not ask any questions * Returns: 0 okay of an errorcode * * It operates this way: * locate the pk in the trustdb * found: * Do we have a valid cache record for it? * yes: return trustlevel from cache * no: make a cache record and all the other stuff * not found: * try to insert the pubkey into the trustdb and check again * * Problems: How do we get the complete keyblock to check that the * cache record is actually valid? Think we need a clever * cache in getkey.c to keep track of this stuff. Maybe it * is not necessary to check this if we use a local pubring. Hmmmm. */ int check_trust( PKT_public_key *pk, unsigned *r_trustlevel ) { TRUSTREC rec; unsigned trustlevel = TRUST_UNKNOWN; int rc=0; u32 cur_time; u32 keyid[2]; keyid_from_pk( pk, keyid ); /* get the pubkey record */ if( pk->local_id ) { read_record( pk->local_id, &rec, RECTYPE_DIR ); } else { /* no local_id: scan the trustdb */ if( (rc=tdbio_search_dir_bypk( pk, &rec )) && rc != -1 ) { log_error("check_trust: search dir record failed: %s\n", g10_errstr(rc)); return rc; } else if( rc == -1 ) { /* not found - insert */ rc = insert_trust_record( pk ); if( rc ) { log_error(_("key %08lX: insert trust record failed: %s\n"), (ulong)keyid[1], g10_errstr(rc)); goto leave; } log_info(_("key %08lX.%lu: inserted into trustdb\n"), (ulong)keyid[1], pk->local_id ); /* and re-read the dir record */ read_record( pk->local_id, &rec, RECTYPE_DIR ); } } cur_time = make_timestamp(); if( pk->timestamp > cur_time ) { log_info(_("key %08lX.%lu: created in future " "(time warp or clock problem)\n"), (ulong)keyid[1], pk->local_id ); return G10ERR_TIME_CONFLICT; } if( pk->expiredate && pk->expiredate <= cur_time ) { log_info(_("key %08lX.%lu: expired at %s\n"), (ulong)keyid[1], pk->local_id, asctimestamp( pk->expiredate) ); trustlevel = TRUST_EXPIRED; } else { rc = do_check( &rec, &trustlevel ); if( rc ) { log_error(_("key %08lX.%lu: trust check failed: %s\n"), (ulong)keyid[1], pk->local_id, g10_errstr(rc)); return rc; } } leave: if( DBG_TRUST ) log_debug("check_trust() returns trustlevel %04x.\n", trustlevel); *r_trustlevel = trustlevel; return 0; } int query_trust_info( PKT_public_key *pk ) { unsigned trustlevel; int c; if( check_trust( pk, &trustlevel ) ) return '?'; if( trustlevel & TRUST_FLAG_REVOKED ) return 'r'; switch( (trustlevel & TRUST_MASK) ) { case TRUST_UNKNOWN: c = 'o'; break; case TRUST_EXPIRED: c = 'e'; break; case TRUST_UNDEFINED: c = 'q'; break; case TRUST_NEVER: c = 'n'; break; case TRUST_MARGINAL: c = 'm'; break; case TRUST_FULLY: c = 'f'; break; case TRUST_ULTIMATE: c = 'u'; break; default: BUG(); } return c; } /**************** * Enumerate all keys, which are needed to build all trust paths for * the given key. This function does not return the key itself or * the ultimate key. * * 1) create a void pointer and initialize it to NULL * 2) pass this void pointer by reference to this function. * Set lid to the key you want to enumerate and pass it by reference. * 3) call this function as long as it does not return -1 * to indicate EOF. LID does contain the next key used to build the web * 4) Always call this function a last time with LID set to NULL, * so that it can free its context. */ int enum_trust_web( void **context, ulong *lid ) { struct { TRUST_SEG_LIST tsl; int index; } *c = *context; if( !c ) { /* make a new context */ c = m_alloc_clear( sizeof *c ); *context = c; if( *lid == last_trust_web_key && last_trust_web_tslist ) c->tsl = last_trust_web_tslist; else { TRUST_SEG_LIST tsl, tsl2, tslist; int rc; rc = make_tsl( *lid, &tslist ); if( rc ) { log_error("failed to build the TSL\n"); return rc; } /* cache the tslist, so that we do not need to free it */ if( last_trust_web_key ) { for( tsl = last_trust_web_tslist; tsl; tsl = tsl2 ) { tsl2 = tsl->next; m_free(tsl); } } last_trust_web_key = *lid; last_trust_web_tslist = tslist; c->tsl = last_trust_web_tslist; } c->index = 1; } if( !lid ) { /* free the context */ m_free( c ); *context = NULL; return 0; } while( c->tsl ) { if( !c->tsl->dup && c->index < c->tsl->nseg-1 ) { *lid = c->tsl->seg[c->index].lid; c->index++; return 0; } c->index = 1; c->tsl = c->tsl->next; } return -1; /* eof */ } /**************** * Return the assigned ownertrust value for the given LID */ unsigned get_ownertrust( ulong lid ) { TRUSTREC rec; read_record( lid, &rec, RECTYPE_DIR ); return rec.r.dir.ownertrust; } int get_ownertrust_info( ulong lid ) { unsigned otrust; int c; otrust = get_ownertrust( lid ); switch( (otrust & TRUST_MASK) ) { case TRUST_NEVER: c = 'n'; break; case TRUST_MARGINAL: c = 'm'; break; case TRUST_FULLY: c = 'f'; break; case TRUST_ULTIMATE: c = 'u'; break; default: c = '-'; break; } return c; } byte * get_pref_data( ulong lid, const byte *namehash, size_t *ret_n ) { TRUSTREC rec; ulong recno; read_record( lid, &rec, RECTYPE_DIR ); for( recno=rec.r.dir.uidlist; recno; recno = rec.r.uid.next ) { read_record( recno, &rec, RECTYPE_UID ); if( rec.r.uid.prefrec && ( !namehash || !memcmp(namehash, rec.r.uid.namehash, 20) )) { byte *buf; /* found the correct one or the first one */ read_record( rec.r.uid.prefrec, &rec, RECTYPE_PREF ); if( rec.r.pref.next ) log_info("warning: can't yet handle long pref records\n"); buf = m_alloc( ITEMS_PER_PREF_RECORD ); memcpy( buf, rec.r.pref.data, ITEMS_PER_PREF_RECORD ); *ret_n = ITEMS_PER_PREF_RECORD; return buf; } } return NULL; } /**************** * Check whether the algorithm is in one of the pref records */ int is_algo_in_prefs( ulong lid, int preftype, int algo ) { TRUSTREC rec; ulong recno; int i; byte *pref; read_record( lid, &rec, RECTYPE_DIR ); for( recno=rec.r.dir.uidlist; recno; recno = rec.r.uid.next ) { read_record( recno, &rec, RECTYPE_UID ); if( rec.r.uid.prefrec ) { read_record( rec.r.uid.prefrec, &rec, RECTYPE_PREF ); if( rec.r.pref.next ) log_info("warning: can't yet handle long pref records\n"); pref = rec.r.pref.data; for(i=0; i+1 < ITEMS_PER_PREF_RECORD; i+=2 ) { if( pref[i] == preftype && pref[i+1] == algo ) return 1; } } } return 0; } static int get_dir_record( PKT_public_key *pk, TRUSTREC *rec ) { int rc=0; if( pk->local_id ) { read_record( pk->local_id, rec, RECTYPE_DIR ); } else { /* no local_id: scan the trustdb */ if( (rc=tdbio_search_dir_bypk( pk, rec )) && rc != -1 ) log_error("get_dir_record: search_record failed: %s\n", g10_errstr(rc)); } return rc; } /**************** * This function simply looks for the key in the trustdb * and makes sure that pk->local_id is set to the coreect value. * Return: 0 = found * -1 = not found * other = error */ int query_trust_record( PKT_public_key *pk ) { TRUSTREC rec; return get_dir_record( pk, &rec ); } /* FIXME: Brauchen wir das?? */ int clear_trust_checked_flag( PKT_public_key *pk ) { TRUSTREC rec; int rc; rc = get_dir_record( pk, &rec ); if( rc ) return rc; if( !(rec.r.dir.dirflags & DIRF_CHECKED) ) return 0; /* reset the flag */ rec.r.dir.dirflags &= ~DIRF_CHECKED; write_record( &rec ); do_sync(); return 0; } static void check_hint_sig( ulong lid, KBNODE keyblock, u32 *keyid, byte *uidrec_hash, TRUSTREC *sigrec, int sigidx, ulong hint_owner ) { KBNODE node; int rc, state=0; byte uhash[20]; int is_selfsig; PKT_signature *sigpkt = NULL; TRUSTREC tmp; u32 sigkid[2]; if( sigrec->r.sig.sig[sigidx].flag & SIGF_CHECKED ) log_info(_("note: sig rec %lu[%d] in hintlist " "of %lu but marked as checked\n"), sigrec->recnum, sigidx, hint_owner ); if( !(sigrec->r.sig.sig[sigidx].flag & SIGF_NOPUBKEY) ) log_info(_("note: sig rec %lu[%d] in hintlist " "of %lu but not marked\n"), sigrec->recnum, sigidx, hint_owner ); read_record( sigrec->r.sig.sig[sigidx].lid, &tmp, 0 ); if( tmp.rectype != RECTYPE_DIR ) { /* we need the dir record */ log_error(_("sig rec %lu[%d] in hintlist " "of %u does not point to a dir record\n"), sigrec->recnum, sigidx, hint_owner ); return; } if( !tmp.r.dir.keylist ) { log_error(_("lid %lu: no primary key\n"), tmp.r.dir.lid ); return; } read_record(tmp.r.dir.keylist, &tmp, RECTYPE_KEY ); keyid_from_fingerprint( tmp.r.key.fingerprint, tmp.r.key.fingerprint_len, sigkid ); /* find the correct signature packet */ for( node=keyblock; node; node = node->next ) { if( node->pkt->pkttype == PKT_USER_ID ) { PKT_user_id *uidpkt = node->pkt->pkt.user_id; if( state ) break; rmd160_hash_buffer( uhash, uidpkt->name, uidpkt->len ); if( !memcmp( uhash, uidrec_hash, 20 ) ) state = 1; } else if( state && node->pkt->pkttype == PKT_SIGNATURE ) { sigpkt = node->pkt->pkt.signature; if( sigpkt->keyid[0] == sigkid[0] && sigpkt->keyid[1] == sigkid[1] && (sigpkt->sig_class&~3) == 0x10 ) break; /* found */ } } if( !node ) { log_error(_("lid %lu: user id not found in keyblock\n"), lid ); return ; } /* and check the sig */ rc = check_key_signature( keyblock, node, &is_selfsig ); if( is_selfsig ) { log_error(_("lid %lu: self-signature in hintlist\n"), lid ); return; } if( !rc ) { /* valid signature */ if( opt.verbose ) log_info(_("key %08lX.%lu, uid %02X%02X, sig %08lX: " "good signature (3)\n"), (ulong)keyid[1], lid, uhash[18], uhash[19], (ulong)sigpkt->keyid[1] ); sigrec->r.sig.sig[sigidx].flag = SIGF_CHECKED | SIGF_VALID; } else if( rc == G10ERR_NO_PUBKEY ) { log_info(_("key %08lX.%lu, uid %02X%02X, sig %08lX: " "very strange: no public key\n"), (ulong)keyid[1], lid, uhash[18], uhash[19], (ulong)sigpkt->keyid[1] ); sigrec->r.sig.sig[sigidx].flag = SIGF_NOPUBKEY; } else { log_info(_("key %08lX.%lu, uid %02X%02X, sig %08lX: " "invalid signature: %s\n"), (ulong)keyid[1], lid, uhash[18], uhash[19], (ulong)sigpkt->keyid[1], g10_errstr(rc) ); sigrec->r.sig.sig[sigidx].flag = SIGF_CHECKED; } sigrec->dirty = 1; } /**************** * Process a hintlist. * Fixme: this list is not anymore anchored to another * record, so it should be put elsewehere in case of an error */ static void process_hintlist( ulong hintlist, ulong hint_owner ) { ulong hlst_rn; int rc; for( hlst_rn = hintlist; hlst_rn; ) { TRUSTREC hlstrec; int hlst_idx; read_record( hlst_rn, &hlstrec, RECTYPE_HLST ); for( hlst_idx=0; hlst_idx < ITEMS_PER_HLST_RECORD; hlst_idx++ ) { TRUSTREC dirrec; TRUSTREC uidrec; TRUSTREC tmprec; KBNODE keyblock = NULL; u32 keyid[2]; ulong lid; ulong r1, r2; lid = hlstrec.r.hlst.rnum[hlst_idx]; if( !lid ) continue; read_record( lid, &dirrec, 0 ); /* make sure it points to a dir record: * this should be true because it only makes sense to * call this function if the dir record is available */ if( dirrec.rectype != RECTYPE_DIR ) { log_error(_("hintlist %lu[%d] of %lu " "does not point to a dir record\n"), hlst_rn, hlst_idx, hint_owner ); continue; } if( !dirrec.r.dir.keylist ) { log_error(_("lid %lu does not have a key\n"), lid ); continue; } /* get the keyblock */ read_record( dirrec.r.dir.keylist, &tmprec, RECTYPE_KEY ); rc = get_keyblock_byfprint( &keyblock, tmprec.r.key.fingerprint, tmprec.r.key.fingerprint_len ); if( rc ) { log_error(_("lid %lu: can't get keyblock: %s\n"), lid, g10_errstr(rc) ); continue; } keyid_from_fingerprint( tmprec.r.key.fingerprint, tmprec.r.key.fingerprint_len, keyid ); /* Walk over all user ids and their signatures and check all * the signature which are created by hint_owner */ for( r1 = dirrec.r.dir.uidlist; r1; r1 = uidrec.r.uid.next ) { TRUSTREC sigrec; read_record( r1, &uidrec, RECTYPE_UID ); for( r2 = uidrec.r.uid.siglist; r2; r2 = sigrec.r.sig.next ) { int i; read_record( r2, &sigrec, RECTYPE_SIG ); sigrec.dirty = 0; for(i=0; i < SIGS_PER_RECORD; i++ ) { if( !sigrec.r.sig.sig[i].lid ) continue; /* skip deleted sigs */ if( sigrec.r.sig.sig[i].lid != hint_owner ) continue; /* not for us */ /* some diagnostic messages */ /* and do the signature check */ check_hint_sig( lid, keyblock, keyid, uidrec.r.uid.namehash, &sigrec, i, hint_owner ); } if( sigrec.dirty ) write_record( &sigrec ); } } release_kbnode( keyblock ); } /* loop over hlst entries */ /* delete this hlst record */ hlst_rn = hlstrec.r.hlst.next; delete_record( hlstrec.recnum ); } /* loop over hintlist */ } static void upd_key_record( PKT_public_key *pk, TRUSTREC *drec, RECNO_LIST *recno_list ) { TRUSTREC krec; byte fpr[MAX_FINGERPRINT_LEN]; size_t fprlen; ulong recno, newrecno; fingerprint_from_pk( pk, fpr, &fprlen ); /* do we already have this key? */ for( recno=drec->r.dir.keylist; recno; recno = krec.r.key.next ) { read_record( recno, &krec, RECTYPE_KEY ); if( krec.r.key.fingerprint_len == fprlen && !memcmp( krec.r.key.fingerprint, fpr, fprlen ) ) break; } if( recno ) { /* yes */ ins_recno_list( recno_list, recno, RECTYPE_KEY ); } else { /* no: insert this new key */ memset( &krec, 0, sizeof(krec) ); krec.rectype = RECTYPE_KEY; krec.r.key.lid = drec->recnum; krec.r.key.pubkey_algo = pk->pubkey_algo; krec.r.key.fingerprint_len = fprlen; memcpy(krec.r.key.fingerprint, fpr, fprlen ); krec.recnum = newrecno = tdbio_new_recnum(); write_record( &krec ); ins_recno_list( recno_list, newrecno, RECTYPE_KEY ); /* and put this new record at the end of the keylist */ if( !(recno=drec->r.dir.keylist) ) { /* this is the first key */ drec->r.dir.keylist = newrecno; drec->dirty = 1; } else { /* we already have a key, append it to the list */ for( ; recno; recno = krec.r.key.next ) read_record( recno, &krec, RECTYPE_KEY ); krec.r.key.next = newrecno; write_record( &krec ); } } } static void upd_uid_record( PKT_user_id *uid, TRUSTREC *drec, RECNO_LIST *recno_list, u32 *keyid, ulong *uidrecno, byte *uidhash ) { TRUSTREC urec; ulong recno, newrecno; rmd160_hash_buffer( uidhash, uid->name, uid->len ); for( recno=drec->r.dir.uidlist; recno; recno = urec.r.uid.next ) { read_record( recno, &urec, RECTYPE_UID ); if( !memcmp( uidhash, urec.r.uid.namehash, 20 ) ) break; } if( recno ) { ins_recno_list( recno_list, recno, RECTYPE_UID ); *uidrecno = recno; } else { /* new user id */ memset( &urec, 0 , sizeof(urec) ); urec.rectype = RECTYPE_UID; urec.r.uid.lid = drec->recnum; memcpy(urec.r.uid.namehash, uidhash, 20 ); urec.recnum = newrecno = tdbio_new_recnum(); write_record( &urec ); ins_recno_list( recno_list, newrecno, RECTYPE_UID ); /* and put this new record at the end of the uidlist */ if( !(recno=drec->r.dir.uidlist) ) { /* this is the first uid */ drec->r.dir.uidlist = newrecno; drec->dirty = 1; } else { /* we already have an uid, append it to the list */ for( ; recno; recno = urec.r.key.next ) read_record( recno, &urec, RECTYPE_UID ); urec.r.uid.next = newrecno; write_record( &urec ); } *uidrecno = newrecno; } } static void upd_pref_record( PKT_signature *sig, TRUSTREC *drec, u32 *keyid, TRUSTREC *urec, byte *uidhash ) { static struct { sigsubpkttype_t subpkttype; int preftype; } prefs[] = { { SIGSUBPKT_PREF_SYM, PREFTYPE_SYM }, { SIGSUBPKT_PREF_HASH, PREFTYPE_HASH }, { SIGSUBPKT_PREF_COMPR, PREFTYPE_COMPR }, { 0, 0 } }; TRUSTREC prec; const byte *s; size_t n; int k, i; ulong recno_tbl[10]; int recno_idx = 0; ulong recno; /* First delete all pref records * This is much simpler than checking whether we have to * do update the record at all - the record cache may care about it */ for( recno=urec->r.uid.prefrec; recno; recno = prec.r.pref.next ) { read_record( recno, &prec, RECTYPE_PREF ); delete_record( recno ); } /* and write the new ones */ i = 0; for(k=0; prefs[k].subpkttype; k++ ) { s = parse_sig_subpkt2( sig, prefs[k].subpkttype, &n ); if( s ) { while( n ) { if( !i || i >= ITEMS_PER_PREF_RECORD ) { if( recno_idx >= DIM(recno_tbl)-1 ) { log_info("too many preferences\n"); break; } if( i ) { recno_tbl[recno_idx]=tdbio_new_recnum(); prec.recnum = recno_tbl[recno_idx++]; write_record( &prec ); } memset( &prec, 0, sizeof prec ); prec.rectype = RECTYPE_PREF; prec.r.pref.lid = drec->recnum; i = 0; } prec.r.pref.data[i++] = prefs[k].preftype; prec.r.pref.data[i++] = *s++; n--; } } } if( i ) { /* write the last one */ recno_tbl[recno_idx]=tdbio_new_recnum(); prec.recnum = recno_tbl[recno_idx++]; write_record( &prec ); } /* now link them together */ for(i=0; i < recno_idx-1; i++ ) { read_record( recno_tbl[i], &prec, RECTYPE_PREF ); prec.r.pref.next = recno_tbl[i+1]; write_record( &prec ); } /* don't need to write the last one, but update the uid */ urec->r.uid.prefrec = recno_idx? recno_tbl[0] : 0; urec->dirty = 1; } /**************** * Note: A signature made with a secondary key is not considered a * self-signature. */ static void upd_sig_record( PKT_signature *sig, TRUSTREC *drec, u32 *keyid, ulong *uidrecno, byte *uidhash, KBNODE keyblock, KBNODE signode ) { TRUSTREC urec; int rc; ulong lid = drec->recnum; if( !*uidrecno ) { switch( sig->sig_class ) { case 0x20: case 0x28: /* We do not need uids for [sub]key revications */ case 0x18: /* or subkey binding */ memset( &urec, 0, sizeof urec ); /* to catch errors */ break; default: log_error("key %08lX: signature (class %02x) without user id\n", (ulong)keyid[1], sig->sig_class ); return; } } else read_record( *uidrecno, &urec, RECTYPE_UID ); if( keyid[0] == sig->keyid[0] && keyid[1] == sig->keyid[1] ) { if( (sig->sig_class&~3) == 0x10 ) { /* must verify this selfsignature here, so that we can * build the preference record and validate the uid record */ if( !(urec.r.uid.uidflags & UIDF_CHECKED) ) { rc = check_key_signature( keyblock, signode, NULL ); if( !rc ) { if( opt.verbose ) log_info(_( "key %08lX.%lu, uid %02X%02X: " "good self-signature\n"), (ulong)keyid[1], lid, uidhash[18], uidhash[19] ); upd_pref_record( sig, drec, keyid, &urec, uidhash ); urec.r.uid.uidflags = UIDF_CHECKED | UIDF_VALID; } else { log_error("key %08lX, uid %02X%02X: " "invalid self-signature: %s\n", (ulong)keyid[1], uidhash[18], uidhash[19], g10_errstr(rc) ); urec.r.uid.uidflags = UIDF_CHECKED; } urec.dirty = 1; } } else if( sig->sig_class == 0x18 ) { /* key binding */ /* get the corresponding key */ /* FIXME */ } else if( sig->sig_class == 0x20 ) { /* key revocation */ /* FIXME */ } else if( sig->sig_class == 0x28 ) { /* subkey revocation */ /* FIXME */ } else if( sig->sig_class == 0x30 ) { /* cert revocation */ /* FIXME */ } } else if( (sig->sig_class&~3) == 0x10 ) { /* We simply insert the signature into the sig records but * avoid duplicate ones. We do not check them here because * there is a big chance, that we import required public keys * later. The problem with this is that we must somewhere store * the information about this signature (we need a record id). * We do this by using the record type shadow dir, which will * be converted to a dir record as soon as a new public key is * inserted into the trustdb. */ TRUSTREC rec; ulong recno; TRUSTREC delrec; int delrecidx; int newflag = 0; ulong newlid = 0; PKT_public_key *pk = m_alloc_clear( sizeof *pk ); ulong pk_lid = 0; int found_sig = 0; int found_delrec = 0; delrec.recnum = 0; rc = get_pubkey( pk, sig->keyid ); if( !rc ) { if( pk->local_id ) pk_lid = pk->local_id; else { rc = tdbio_search_dir_bypk( pk, &rec ); if( !rc ) pk_lid = rec.recnum; else if( rc == -1 ) { /* see whether there is a sdir instead */ u32 akid[2]; keyid_from_pk( pk, akid ); rc = tdbio_search_sdir( akid, pk->pubkey_algo, &rec ); if( !rc ) pk_lid = rec.recnum; } } } free_public_key( pk ); pk = NULL; /* Loop over all signatures just in case one is not correctly * marked. If we see the correct signature, set a flag. * delete duplicate signatures (should not happen but...) */ for( recno = urec.r.uid.siglist; recno; recno = rec.r.sig.next ) { int i; read_record( recno, &rec, RECTYPE_SIG ); for(i=0; i < SIGS_PER_RECORD; i++ ) { TRUSTREC tmp; if( !rec.r.sig.sig[i].lid ) { if( !found_delrec && !delrec.recnum ) { delrec = rec; delrecidx = i; found_delrec=1; } continue; /* skip deleted sigs */ } if( rec.r.sig.sig[i].lid == pk_lid ) { if( found_sig ) { log_info(_("key %08lX.%lu, uid %02X%02X, sig %08lX: " "duplicated signature - deleted\n"), (ulong)keyid[1], lid, uidhash[18], uidhash[19], (ulong)sig->keyid[1] ); rec.r.sig.sig[i].lid = 0; rec.dirty = 1; } else found_sig = 1; } if( rec.r.sig.sig[i].flag & SIGF_CHECKED ) continue; /* we already checked this signature */ if( rec.r.sig.sig[i].flag & SIGF_NOPUBKEY ) continue; /* we do not have the public key */ read_record( rec.r.sig.sig[i].lid, &tmp, 0 ); if( tmp.rectype == RECTYPE_DIR ) { /* In this case we should now be able to check * the signature: */ rc = check_key_signature( keyblock, signode, NULL ); if( !rc ) { /* valid signature */ if( opt.verbose ) log_info(_( "key %08lX.%lu, uid %02X%02X, sig %08lX: " "good signature (1)\n"), (ulong)keyid[1], lid, uidhash[18], uidhash[19], (ulong)sig->keyid[1] ); rec.r.sig.sig[i].flag = SIGF_CHECKED | SIGF_VALID; } else if( rc == G10ERR_NO_PUBKEY ) { log_info(_("key %08lX.%lu, uid %02X%02X, sig %08lX: " "weird: no public key\n"), (ulong)keyid[1], lid, uidhash[18], uidhash[19], (ulong)sig->keyid[1] ); rec.r.sig.sig[i].flag = SIGF_NOPUBKEY; } else { log_info(_("key %08lX.%lu, uid %02X%02X, sig %08lX: " "invalid signature: %s\n"), (ulong)keyid[1], lid, uidhash[18], uidhash[19], (ulong)sig->keyid[1], g10_errstr(rc)); rec.r.sig.sig[i].flag = SIGF_CHECKED; } rec.dirty = 1; } else if( tmp.rectype == RECTYPE_SDIR ) { /* must check that it is the right one */ if( tmp.r.sdir.keyid[0] == sig->keyid[0] && tmp.r.sdir.keyid[1] == sig->keyid[1] && (!tmp.r.sdir.pubkey_algo || tmp.r.sdir.pubkey_algo == sig->pubkey_algo )) { log_info(_("key %08lX.%lu, uid %02X%02X: " "has shadow dir %lu but not yet marked.\n"), (ulong)keyid[1], lid, uidhash[18], uidhash[19], tmp.recnum ); rec.r.sig.sig[i].flag = SIGF_NOPUBKEY; rec.dirty = 1; /* fixme: should we verify that the record is * in the hintlist? - This case here should anyway * never occur */ } } else { log_error("sig record %lu[%d] points to wrong record.\n", rec.r.sig.sig[i].lid, i ); die_invalid_db(); } } if( found_delrec && delrec.recnum ) { delrec = rec; found_delrec = 0; /* we onyl want the first one */ } if( rec.dirty ) write_record( &rec ); } if( found_sig ) goto leave; /* at this point, we have verified, that the signature is not in * our list of signatures. Add a new record with that signature * and if the public key is there, check the signature. */ if( !pk_lid ) rc = G10ERR_NO_PUBKEY; else rc = check_key_signature( keyblock, signode, NULL ); if( !rc ) { /* valid signature */ if( opt.verbose ) log_info(_("key %08lX.%lu, uid %02X%02X, sig %08lX: " "good signature (2)\n"), (ulong)keyid[1], lid, uidhash[18], uidhash[19], (ulong)sig->keyid[1] ); newlid = pk_lid; /* this is the pk of the signature */ if( !newlid ) BUG(); newflag = SIGF_CHECKED | SIGF_VALID; } else if( rc == G10ERR_NO_PUBKEY ) { if( opt.verbose > 1 ) log_info(_("key %08lX.%lu, uid %02X%02X, sig %08lX: " "no public key\n"), (ulong)keyid[1], lid, uidhash[18], uidhash[19], (ulong)sig->keyid[1] ); newflag = SIGF_NOPUBKEY; } else { log_info(_("key %08lX.%lu, uid %02X%02X, sig %08lX: " "invalid signature: %s\n"), (ulong)keyid[1], lid, uidhash[18], uidhash[19], (ulong)sig->keyid[1], g10_errstr(rc)); newflag = SIGF_CHECKED; } if( !newlid ) { /* create a shadow dir record */ TRUSTREC sdir, hlst, tmphlst; int tmpidx; /* first see whether we already have such a record */ rc = tdbio_search_sdir( sig->keyid, sig->pubkey_algo, &sdir ); if( rc && rc != -1 ) { log_error("tdbio_search_dir failed: %s\n", g10_errstr(rc)); die_invalid_db(); } if( rc == -1 ) { /* not found: create */ memset( &sdir, 0, sizeof sdir ); sdir.recnum = tdbio_new_recnum(); sdir.rectype= RECTYPE_SDIR; sdir.r.sdir.lid = sdir.recnum; sdir.r.sdir.keyid[0] = sig->keyid[0]; sdir.r.sdir.keyid[1] = sig->keyid[1]; sdir.r.sdir.pubkey_algo = sig->pubkey_algo; sdir.r.sdir.hintlist = 0; write_record( &sdir ); } newlid = sdir.recnum; /* Put the record number into the hintlist. * (It is easier to use the lid and not the record number of the * key to save some space (assuming that a signator has * signed more than one user id - and it is easier to implement.) */ tmphlst.recnum = 0; for( recno=sdir.r.sdir.hintlist; recno; recno = hlst.r.hlst.next) { int i; read_record( recno, &hlst, RECTYPE_HLST ); for( i=0; i < ITEMS_PER_HLST_RECORD; i++ ) { if( !hlst.r.hlst.rnum[i] ) { if( !tmphlst.recnum ) { tmphlst = hlst; tmpidx = i; } } else if( hlst.r.hlst.rnum[i] == lid ) goto have_hint; } } /* not yet in the hint list, write it */ if( tmphlst.recnum ) { /* we have an empty slot */ tmphlst.r.hlst.rnum[tmpidx] = lid; write_record( &tmphlst ); } else { /* must append a new hlst record */ memset( &hlst, 0, sizeof hlst ); hlst.recnum = tdbio_new_recnum(); hlst.rectype = RECTYPE_HLST; hlst.r.hlst.next = sdir.r.sdir.hintlist; hlst.r.hlst.rnum[0] = lid; write_record( &hlst ); sdir.r.sdir.hintlist = hlst.recnum; write_record( &sdir ); } have_hint: /* "goto considered useful" (don't tell Dijkstra) */ ; } if( delrec.recnum ) { /* we can reuse a deleted slot */ delrec.r.sig.sig[delrecidx].lid = newlid; delrec.r.sig.sig[delrecidx].flag= newflag; write_record( &delrec ); } else { /* must insert a new sig record */ TRUSTREC tmp; memset( &tmp, 0, sizeof tmp ); tmp.recnum = tdbio_new_recnum(); tmp.rectype = RECTYPE_SIG; tmp.r.sig.lid = lid; tmp.r.sig.next = urec.r.uid.siglist; tmp.r.sig.sig[0].lid = newlid; tmp.r.sig.sig[0].flag= newflag; write_record( &tmp ); urec.r.uid.siglist = tmp.recnum; urec.dirty = 1; } } else if( sig->sig_class == 0x18 ) { /* key binding */ log_info(_("key %08lX: bogus key binding by %08lX\n"), (ulong)keyid[1], (ulong)sig->keyid[1] ); } else if( sig->sig_class == 0x20 ) { /* key revocation */ log_info(_("key %08lX: bogus key revocation by %08lX\n"), (ulong)keyid[1], (ulong)sig->keyid[1] ); } else if( sig->sig_class == 0x28 ) { /* subkey revocation */ log_info(_("key %08lX: bogus subkey revocation by %08lX\n"), (ulong)keyid[1], (ulong)sig->keyid[1] ); } else if( sig->sig_class == 0x30 ) { /* cert revocation */ /* FIXME: a signator wants to revoke his certification signature */ } leave: if( urec.dirty ) write_record( &urec ); } /**************** * Update all the info from the public keyblock. * The key must already exist in the keydb. * This function is responsible for checking the signatures in cases * where the public key is already available. If we no not have the public * key, the check is done by some special code in insert_trust_record(). */ int update_trust_record( KBNODE keyblock ) { PKT_public_key *primary_pk; KBNODE node; TRUSTREC drec; TRUSTREC krec; TRUSTREC urec; TRUSTREC prec; TRUSTREC helprec; int rc = 0; u32 keyid[2]; /* keyid of primary key */ ulong recno, lastrecno; ulong uidrecno = 0; byte uidhash[20]; RECNO_LIST recno_list = NULL; /* list of verified records */ /* fixme: replace recno_list by a lookup on node->recno */ node = find_kbnode( keyblock, PKT_PUBLIC_KEY ); primary_pk = node->pkt->pkt.public_key; rc = get_dir_record( primary_pk, &drec ); if( rc ) return rc; if( !primary_pk->local_id ) primary_pk->local_id = drec.recnum; keyid_from_pk( primary_pk, keyid ); /* fixme: start a transaction */ /* now update keys and user ids */ for( node=keyblock; node; node = node->next ) { switch( node->pkt->pkttype ) { case PKT_PUBLIC_KEY: case PKT_PUBLIC_SUBKEY: uidrecno = 0; upd_key_record( node->pkt->pkt.public_key, &drec, &recno_list ); break; case PKT_USER_ID: if( drec.dirty ) { /* upd_pref_record may read the drec */ write_record( &drec ); drec.dirty = 0; } upd_uid_record( node->pkt->pkt.user_id, &drec, &recno_list, keyid, &uidrecno, uidhash ); break; case PKT_SIGNATURE: if( drec.dirty ) { /* upd_sig_recrod may read the drec */ write_record( &drec ); drec.dirty = 0; } upd_sig_record( node->pkt->pkt.signature, &drec, keyid, &uidrecno, uidhash, keyblock, node ); break; default: break; } } /* end loop over all nodes */ /* delete keyrecords from the trustdb which are not anymore used */ lastrecno = 0; for( recno=drec.r.dir.keylist; recno; recno = krec.r.key.next ) { read_record( recno, &krec, RECTYPE_KEY ); if( !qry_recno_list( recno_list, recno, RECTYPE_KEY ) ) { /* delete this one */ if( !lastrecno ) { drec.r.dir.keylist = krec.r.key.next; drec.dirty = 1; } else { read_record( lastrecno, &helprec, RECTYPE_KEY ); helprec.r.key.next = krec.r.key.next; write_record( &helprec ); } delete_record( recno ); } else lastrecno = recno; } /* delete uid records and sig and their pref records from the * trustdb which are not anymore used */ lastrecno = 0; for( recno=drec.r.dir.uidlist; recno; recno = urec.r.uid.next ) { read_record( recno, &urec, RECTYPE_UID ); if( !qry_recno_list( recno_list, recno, RECTYPE_UID ) ) { ulong r2; /* delete this one */ if( !lastrecno ) { drec.r.dir.uidlist = urec.r.uid.next; drec.dirty = 1; } else { read_record( lastrecno, &helprec, RECTYPE_UID ); helprec.r.uid.next = urec.r.uid.next; write_record( &helprec ); } for(r2=urec.r.uid.prefrec ; r2; r2 = prec.r.pref.next ) { read_record( r2, &prec, RECTYPE_PREF ); delete_record( r2 ); } for(r2=urec.r.uid.siglist ; r2; r2 = helprec.r.sig.next ) { read_record( r2, &helprec, RECTYPE_SIG ); delete_record( r2 ); } delete_record( recno ); } else lastrecno = recno; } if( rc ) ; /* fixme: cancel transaction */ else if( drec.dirty ) { drec.r.dir.dirflags &= ~DIRF_CHECKED; /* reset flag */ write_record( &drec ); do_sync(); } rel_recno_list( &recno_list ); return rc; } /**************** * Insert a trust record into the TrustDB * This function assumes that the record does not yet exist. */ int insert_trust_record( PKT_public_key *pk ) { TRUSTREC dirrec; TRUSTREC shadow; KBNODE keyblock = NULL; KBNODE node; byte fingerprint[MAX_FINGERPRINT_LEN]; size_t fingerlen; int rc = 0; ulong hintlist = 0; if( pk->local_id ) log_bug("pk->local_id=%lu\n", pk->local_id ); fingerprint_from_pk( pk, fingerprint, &fingerlen ); /* fixme: assert that we do not have this record. * we can do this by searching for the primary keyid * * fixme: If there is no such key we should look whether one * of the subkeys has been used to sign another key and in this case * we got the key anyway. Because a secondary key can't be used * without a primary key (it is needed to bind the secondary one * to the primary one which has the user ids etc.) */ /* get the keyblock which has the key */ rc = get_keyblock_byfprint( &keyblock, fingerprint, fingerlen ); if( rc ) { /* that should never happen */ log_error( "insert_trust_record: keyblock not found: %s\n", g10_errstr(rc) ); goto leave; } /* check that we used the primary key (we are little bit paranoid) */ { PKT_public_key *a_pk; u32 akid[2], bkid[2]; node = find_kbnode( keyblock, PKT_PUBLIC_KEY ); a_pk = node->pkt->pkt.public_key; /* we can't use cmp_public_keys here because some parts (expiredate) * might not be set in pk <--- but why (fixme) */ keyid_from_pk( a_pk, akid ); keyid_from_pk( pk, bkid ); if( akid[0] != bkid[0] || akid[1] != bkid[1] ) { log_error("did not use primary key for insert_trust_record()\n"); rc = G10ERR_GENERAL; goto leave; } } /* We have to look for a shadow dir record which must be reused * as the dir record. And: check all signatures which are listed * in the hintlist of the shadow dir record. */ rc = tdbio_search_sdir( pk->keyid, pk->pubkey_algo, &shadow ); if( rc && rc != -1 ) { log_error("tdbio_search_dir failed: %s\n", g10_errstr(rc)); die_invalid_db(); } memset( &dirrec, 0, sizeof dirrec ); dirrec.rectype = RECTYPE_DIR; if( !rc ) { /* hey, great: this key has already signed other keys * convert this to a real directory entry */ hintlist = shadow.r.sdir.hintlist; dirrec.recnum = shadow.recnum; } else { dirrec.recnum = tdbio_new_recnum(); } dirrec.r.dir.lid = dirrec.recnum; write_record( &dirrec ); /* store the LID */ pk->local_id = dirrec.r.dir.lid; for( node=keyblock; node; node = node->next ) { if( node->pkt->pkttype == PKT_PUBLIC_KEY || node->pkt->pkttype == PKT_PUBLIC_SUBKEY ) { PKT_public_key *pk = node->pkt->pkt.public_key; pk->local_id = dirrec.r.dir.lid; } else if( node->pkt->pkttype == PKT_SIGNATURE ) { PKT_signature *sig = node->pkt->pkt.signature; sig->local_id = dirrec.r.dir.lid; } } /* and put all the other stuff into the keydb */ rc = update_trust_record( keyblock ); if( !rc ) process_hintlist( hintlist, dirrec.r.dir.lid ); leave: if( rc && hintlist ) ; /* fixme: the hintlist is not anymore anchored */ release_kbnode( keyblock ); do_sync(); return rc; } int update_ownertrust( ulong lid, unsigned new_trust ) { TRUSTREC rec; read_record( lid, &rec, RECTYPE_DIR ); rec.r.dir.ownertrust = new_trust; write_record( &rec ); do_sync(); return 0; }