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0d7cae4663
attributes. This guarantees that if something goes wrong, we won't be able to complete the transaction, thus leaving any key already existing on the server intact.
1923 lines
41 KiB
C
1923 lines
41 KiB
C
/* gpgkeys_ldap.c - talk to a LDAP keyserver
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* Copyright (C) 2001, 2002, 2004 Free Software Foundation, Inc.
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*
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* This file is part of GnuPG.
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*
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* GnuPG is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* GnuPG is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#include <config.h>
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#include <stdio.h>
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#include <string.h>
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#include <time.h>
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#include <unistd.h>
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#ifdef HAVE_GETOPT_H
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#include <getopt.h>
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#endif
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#include <stdlib.h>
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#include <errno.h>
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#include <ldap.h>
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#include "util.h"
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#include "keyserver.h"
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#ifdef __riscos__
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#include "util.h"
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#endif
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extern char *optarg;
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extern int optind;
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#define GET 0
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#define SEND 1
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#define SEARCH 2
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#define MAX_LINE 256
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static int verbose=0,include_disabled=0,include_revoked=0,include_subkeys=0;
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static int real_ldap=0;
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static char *basekeyspacedn=NULL;
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static char host[80]={'\0'};
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static char portstr[10]={'\0'};
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static char *pgpkeystr="pgpKey";
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static FILE *input=NULL,*output=NULL,*console=NULL;
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static LDAP *ldap=NULL;
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#if !HAVE_SETENV
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int setenv(const char *name, const char *value, int overwrite);
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#endif
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#if !HAVE_UNSETENV
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int unsetenv(const char *name);
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#endif
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struct keylist
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{
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char str[MAX_LINE];
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struct keylist *next;
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};
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static int
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ldap_err_to_gpg_err(int err)
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{
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int ret;
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switch(err)
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{
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case LDAP_ALREADY_EXISTS:
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ret=KEYSERVER_KEY_EXISTS;
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break;
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case LDAP_SERVER_DOWN:
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ret=KEYSERVER_UNREACHABLE;
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break;
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default:
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ret=KEYSERVER_GENERAL_ERROR;
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break;
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}
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return ret;
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}
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static int
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ldap_to_gpg_err(LDAP *ld)
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{
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#if defined(HAVE_LDAP_GET_OPTION) && defined(LDAP_OPT_ERROR_NUMBER)
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int err;
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if(ldap_get_option(ld,LDAP_OPT_ERROR_NUMBER,&err)==0)
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return ldap_err_to_gpg_err(err);
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else
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return KEYSERVER_GENERAL_ERROR;
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#elif defined(HAVE_LDAP_LD_ERRNO)
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return ldap_err_to_gpg_err(ld->ld_errno);
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#else
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/* We should never get here since the LDAP library should always
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have either ldap_get_option or ld_errno, but just in case... */
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return KEYSERVER_GENERAL_ERROR;
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#endif
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}
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static int
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key_in_keylist(const char *key,struct keylist *list)
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{
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struct keylist *keyptr=list;
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while(keyptr!=NULL)
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{
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if(strcasecmp(key,keyptr->str)==0)
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return 1;
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keyptr=keyptr->next;
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}
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return 0;
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}
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static int
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add_key_to_keylist(const char *key,struct keylist **list)
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{
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struct keylist *keyptr=malloc(sizeof(struct keylist));
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if(keyptr==NULL)
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{
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fprintf(console,"gpgkeys: out of memory when deduping "
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"key list\n");
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return KEYSERVER_NO_MEMORY;
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}
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strncpy(keyptr->str,key,MAX_LINE);
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keyptr->str[MAX_LINE-1]='\0';
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keyptr->next=*list;
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*list=keyptr;
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return 0;
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}
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static void
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free_keylist(struct keylist *list)
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{
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while(list!=NULL)
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{
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struct keylist *keyptr=list;
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list=keyptr->next;
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free(keyptr);
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}
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}
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static time_t
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ldap2epochtime(const char *timestr)
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{
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struct tm pgptime;
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time_t answer;
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memset(&pgptime,0,sizeof(pgptime));
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/* YYYYMMDDHHmmssZ */
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sscanf(timestr,"%4d%2d%2d%2d%2d%2d",
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&pgptime.tm_year,
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&pgptime.tm_mon,
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&pgptime.tm_mday,
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&pgptime.tm_hour,
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&pgptime.tm_min,
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&pgptime.tm_sec);
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pgptime.tm_year-=1900;
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pgptime.tm_isdst=-1;
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pgptime.tm_mon--;
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/* mktime takes the timezone into account, and we can't have that.
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I'd use timegm, but it's not portable. */
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#ifdef HAVE_TIMEGM
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answer=timegm(&pgptime);
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#else
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{
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char *zone=getenv("TZ");
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setenv("TZ","UTC",1);
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tzset();
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answer=mktime(&pgptime);
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if(zone)
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setenv("TZ",zone,1);
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else
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unsetenv("TZ");
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tzset();
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}
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#endif
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return answer;
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}
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/* Caller must free */
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static char *
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epoch2ldaptime(time_t stamp)
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{
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struct tm *ldaptime;
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char buf[16];
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ldaptime=gmtime(&stamp);
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ldaptime->tm_year+=1900;
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ldaptime->tm_mon++;
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/* YYYYMMDDHHmmssZ */
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sprintf(buf,"%04d%02d%02d%02d%02d%02dZ",
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ldaptime->tm_year,
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ldaptime->tm_mon,
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ldaptime->tm_mday,
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ldaptime->tm_hour,
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ldaptime->tm_min,
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ldaptime->tm_sec);
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return strdup(buf);
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}
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/* Passing a NULL for value effectively deletes that attribute. This
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doesn't mean "delete" in the sense of removing something from the
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modlist, but "delete" in the LDAP sense of adding a modlist item
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that specifies LDAP_MOD_REPLACE and a null attribute for the given
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attribute. LDAP_MOD_DELETE doesn't work here as we don't know if
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the attribute in question exists or not. */
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static int
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make_one_attr(LDAPMod ***modlist,int unique,char *attr,const char *value)
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{
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LDAPMod **m;
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int nummods=0;
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/* Search modlist for the attribute we're playing with. */
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for(m=*modlist;*m;m++)
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{
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if(strcasecmp((*m)->mod_type,attr)==0)
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{
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char **ptr=(*m)->mod_values;
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int numvalues=0;
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/* We have this attribute already, so when the REPLACE
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happens, the server attributes will be replaced
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anyway. */
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if(!value)
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return 1;
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if(ptr)
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for(ptr=(*m)->mod_values;*ptr;ptr++)
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{
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if(unique && strcmp(*ptr,value)==0)
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return 1;
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numvalues++;
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}
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ptr=realloc((*m)->mod_values,sizeof(char *)*(numvalues+2));
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if(!ptr)
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return 0;
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(*m)->mod_values=ptr;
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ptr[numvalues]=strdup(value);
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if(!ptr[numvalues])
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return 0;
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ptr[numvalues+1]=NULL;
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break;
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}
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nummods++;
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}
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/* We didn't find the attr, so make one and add it to the end */
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if(!*m)
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{
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LDAPMod **grow;
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grow=realloc(*modlist,sizeof(LDAPMod *)*(nummods+2));
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if(!grow)
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return 0;
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*modlist=grow;
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grow[nummods]=malloc(sizeof(LDAPMod));
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if(!grow[nummods])
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return 0;
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grow[nummods]->mod_op=LDAP_MOD_REPLACE;
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grow[nummods]->mod_type=attr;
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if(value)
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{
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grow[nummods]->mod_values=malloc(sizeof(char *)*2);
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if(!grow[nummods]->mod_values)
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{
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grow[nummods]=NULL;
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return 0;
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}
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/* Is this the right thing? Can a UTF8-encoded user ID have
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embedded nulls? */
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grow[nummods]->mod_values[0]=strdup(value);
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if(!grow[nummods]->mod_values[0])
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{
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free(grow[nummods]->mod_values);
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grow[nummods]=NULL;
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return 0;
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}
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grow[nummods]->mod_values[1]=NULL;
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}
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else
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grow[nummods]->mod_values=NULL;
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grow[nummods+1]=NULL;
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}
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return 1;
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}
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static void
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build_attrs(LDAPMod ***modlist,char *line)
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{
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char *record;
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int i;
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/* Remove trailing whitespace */
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for(i=strlen(line);i>0;i--)
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if(ascii_isspace(line[i-1]))
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line[i-1]='\0';
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else
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break;
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if((record=strsep(&line,":"))==NULL)
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return;
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if(ascii_strcasecmp("pub",record)==0)
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{
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char *tok;
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int disabled=0,revoked=0;
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/* The long keyid */
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if((tok=strsep(&line,":"))==NULL)
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return;
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if(strlen(tok)==16)
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{
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make_one_attr(modlist,0,"pgpCertID",tok);
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make_one_attr(modlist,0,"pgpKeyID",&tok[8]);
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}
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else
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return;
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/* The primary pubkey algo */
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if((tok=strsep(&line,":"))==NULL)
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return;
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switch(atoi(tok))
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{
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case 1:
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make_one_attr(modlist,0,"pgpKeyType","RSA");
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break;
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case 17:
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make_one_attr(modlist,0,"pgpKeyType","DSS/DH");
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break;
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}
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/* Size of primary key */
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if((tok=strsep(&line,":"))==NULL)
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return;
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if(atoi(tok)>0)
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{
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char padded[6];
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int val=atoi(tok);
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/* We zero pad this on the left to make PGP happy. */
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if(val<99999 && val>0)
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{
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sprintf(padded,"%05u",atoi(tok));
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make_one_attr(modlist,0,"pgpKeySize",padded);
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}
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}
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/* pk timestamp */
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if((tok=strsep(&line,":"))==NULL)
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return;
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if(atoi(tok)>0)
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{
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char *stamp=epoch2ldaptime(atoi(tok));
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if(stamp)
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{
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make_one_attr(modlist,0,"pgpKeyCreateTime",stamp);
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free(stamp);
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}
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}
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/* pk expire */
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if((tok=strsep(&line,":"))==NULL)
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return;
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if(atoi(tok)>0)
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{
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char *stamp=epoch2ldaptime(atoi(tok));
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if(stamp)
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{
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make_one_attr(modlist,0,"pgpKeyExpireTime",stamp);
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free(stamp);
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}
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}
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/* flags */
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if((tok=strsep(&line,":"))==NULL)
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return;
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while(*tok)
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switch(*tok++)
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{
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case 'r':
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case 'R':
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revoked=1;
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break;
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case 'd':
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case 'D':
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disabled=1;
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break;
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}
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/*
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Note that we always create the pgpDisabled and pgpRevoked
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attributes, regardless of whether the key is disabled/revoked
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or not. This is because a very common search is like
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"(&(pgpUserID=*isabella*)(pgpDisabled=0))"
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*/
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make_one_attr(modlist,0,"pgpDisabled",disabled?"1":"0");
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make_one_attr(modlist,0,"pgpRevoked",revoked?"1":"0");
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}
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else if(ascii_strcasecmp("uid",record)==0)
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{
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char *userid,*tok;
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/* The user ID string */
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if((tok=strsep(&line,":"))==NULL)
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return;
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if(strlen(tok)==0)
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return;
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userid=tok;
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/* By definition, de-%-encoding is always smaller than the
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original string so we can decode in place. */
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i=0;
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while(*tok)
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if(tok[0]=='%' && tok[1] && tok[2])
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{
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if((userid[i]=hextobyte(&tok[1]))==-1)
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userid[i]='?';
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i++;
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tok+=3;
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}
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else
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userid[i++]=*tok++;
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|
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/* We don't care about the other info provided in the uid: line
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since the LDAP schema doesn't need it. */
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|
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make_one_attr(modlist,0,"pgpUserID",userid);
|
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}
|
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else if(ascii_strcasecmp("sig",record)==0)
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{
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|
char *tok;
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|
|
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if((tok=strsep(&line,":"))==NULL)
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return;
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|
|
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if(strlen(tok)==16)
|
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make_one_attr(modlist,1,"pgpSignerID",tok);
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}
|
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}
|
|
|
|
static void
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free_mod_values(LDAPMod *mod)
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{
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char **ptr;
|
|
|
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if(!mod->mod_values)
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return;
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|
|
|
for(ptr=mod->mod_values;*ptr;ptr++)
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free(*ptr);
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|
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free(mod->mod_values);
|
|
}
|
|
|
|
static int
|
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send_key(int *eof)
|
|
{
|
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int err,begin=0,end=0,keysize=1,ret=KEYSERVER_INTERNAL_ERROR;
|
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char *dn=NULL,line[MAX_LINE],*key=NULL;
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char keyid[17];
|
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LDAPMod **modlist,**ml;
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|
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modlist=malloc(sizeof(LDAPMod *));
|
|
if(!modlist)
|
|
{
|
|
fprintf(console,"gpgkeys: can't allocate memory for keyserver record\n");
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|
ret=KEYSERVER_NO_MEMORY;
|
|
goto fail;
|
|
}
|
|
|
|
*modlist=NULL;
|
|
|
|
/* Going on the assumption that modify operations are more frequent
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|
than adds, I'm setting up the modify operations here first. */
|
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make_one_attr(&modlist,0,"pgpDisabled",NULL);
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make_one_attr(&modlist,0,"pgpKeyID",NULL);
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|
make_one_attr(&modlist,0,"pgpKeyType",NULL);
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make_one_attr(&modlist,0,"pgpUserID",NULL);
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|
make_one_attr(&modlist,0,"pgpKeyCreateTime",NULL);
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|
make_one_attr(&modlist,0,"pgpSignerID",NULL);
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|
make_one_attr(&modlist,0,"pgpRevoked",NULL);
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make_one_attr(&modlist,0,"pgpSubKeyID",NULL);
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make_one_attr(&modlist,0,"pgpKeySize",NULL);
|
|
make_one_attr(&modlist,0,"pgpKeyExpireTime",NULL);
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|
make_one_attr(&modlist,0,"pgpCertID",NULL);
|
|
/* Note the count of these deleted attributes. They're to be used
|
|
later. */
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|
|
|
/* Assemble the INFO stuff into LDAP attributes */
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|
|
|
while(fgets(line,MAX_LINE,input)!=NULL)
|
|
if(sscanf(line,"INFO %16s BEGIN\n",keyid)==1)
|
|
{
|
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begin=1;
|
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break;
|
|
}
|
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|
|
if(!begin)
|
|
{
|
|
/* i.e. eof before the INFO BEGIN was found. This isn't an
|
|
error. */
|
|
*eof=1;
|
|
ret=KEYSERVER_OK;
|
|
goto fail;
|
|
}
|
|
|
|
if(strlen(keyid)!=16)
|
|
{
|
|
*eof=1;
|
|
ret=KEYSERVER_KEY_INCOMPLETE;
|
|
goto fail;
|
|
}
|
|
|
|
dn=malloc(strlen("pgpCertID=")+16+1+strlen(basekeyspacedn)+1);
|
|
if(dn==NULL)
|
|
{
|
|
fprintf(console,"gpgkeys: can't allocate memory for keyserver record\n");
|
|
ret=KEYSERVER_NO_MEMORY;
|
|
goto fail;
|
|
}
|
|
|
|
sprintf(dn,"pgpCertID=%s,%s",keyid,basekeyspacedn);
|
|
|
|
key=malloc(1);
|
|
if(!key)
|
|
{
|
|
fprintf(console,"gpgkeys: unable to allocate memory for key\n");
|
|
ret=KEYSERVER_NO_MEMORY;
|
|
goto fail;
|
|
}
|
|
|
|
key[0]='\0';
|
|
|
|
/* Now parse each line until we see the END */
|
|
|
|
while(fgets(line,MAX_LINE,input)!=NULL)
|
|
if(sscanf(line,"INFO %16s END\n",keyid)==1)
|
|
{
|
|
end=1;
|
|
break;
|
|
}
|
|
else
|
|
build_attrs(&modlist,line);
|
|
|
|
if(!end)
|
|
{
|
|
fprintf(console,"gpgkeys: no INFO %s END found\n",keyid);
|
|
*eof=1;
|
|
ret=KEYSERVER_KEY_INCOMPLETE;
|
|
goto fail;
|
|
}
|
|
|
|
begin=end=0;
|
|
|
|
/* Read and throw away stdin until we see the BEGIN */
|
|
|
|
while(fgets(line,MAX_LINE,input)!=NULL)
|
|
if(sscanf(line,"KEY %16s BEGIN\n",keyid)==1)
|
|
{
|
|
begin=1;
|
|
break;
|
|
}
|
|
|
|
if(!begin)
|
|
{
|
|
/* i.e. eof before the KEY BEGIN was found. This isn't an
|
|
error. */
|
|
*eof=1;
|
|
ret=KEYSERVER_OK;
|
|
goto fail;
|
|
}
|
|
|
|
/* Now slurp up everything until we see the END */
|
|
|
|
while(fgets(line,MAX_LINE,input)!=NULL)
|
|
if(sscanf(line,"KEY %16s END\n",keyid)==1)
|
|
{
|
|
end=1;
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
char *tempkey;
|
|
keysize+=strlen(line);
|
|
tempkey=realloc(key,keysize);
|
|
if(tempkey==NULL)
|
|
{
|
|
fprintf(console,"gpgkeys: unable to reallocate for key\n");
|
|
ret=KEYSERVER_NO_MEMORY;
|
|
goto fail;
|
|
}
|
|
else
|
|
key=tempkey;
|
|
|
|
strcat(key,line);
|
|
}
|
|
|
|
if(!end)
|
|
{
|
|
fprintf(console,"gpgkeys: no KEY %s END found\n",keyid);
|
|
*eof=1;
|
|
ret=KEYSERVER_KEY_INCOMPLETE;
|
|
goto fail;
|
|
}
|
|
|
|
make_one_attr(&modlist,0,"objectClass","pgpKeyInfo");
|
|
make_one_attr(&modlist,0,"pgpKey",key);
|
|
|
|
/* If it's not there, we just turn around and send an add command
|
|
for the same key. Otherwise, the modify brings the server copy
|
|
into compliance with our copy. Note that unlike the LDAP
|
|
keyserver (and really, any other keyserver) this does NOT merge
|
|
signatures, but replaces the whole key. This should make some
|
|
people very happy. */
|
|
|
|
err=ldap_modify_s(ldap,dn,modlist);
|
|
if(err==LDAP_NO_SUCH_OBJECT)
|
|
{
|
|
/* This [11] is the deleted count from earlier */
|
|
LDAPMod **addlist=&modlist[11];
|
|
err=ldap_add_s(ldap,dn,addlist);
|
|
}
|
|
|
|
if(err!=LDAP_SUCCESS)
|
|
{
|
|
fprintf(console,"gpgkeys: error adding key %s to keyserver: %s\n",
|
|
keyid,ldap_err2string(err));
|
|
ret=ldap_err_to_gpg_err(err);
|
|
goto fail;
|
|
}
|
|
|
|
ret=KEYSERVER_OK;
|
|
|
|
fail:
|
|
/* Unwind and free the whole modlist structure */
|
|
for(ml=modlist;*ml;ml++)
|
|
{
|
|
free_mod_values(*ml);
|
|
free(*ml);
|
|
}
|
|
|
|
free(modlist);
|
|
free(dn);
|
|
|
|
if(ret!=0 && begin)
|
|
fprintf(output,"KEY %s FAILED %d\n",keyid,ret);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int
|
|
send_key_keyserver(int *eof)
|
|
{
|
|
int err,begin=0,end=0,keysize=1,ret=KEYSERVER_INTERNAL_ERROR;
|
|
char *dn=NULL,line[MAX_LINE],*key[2]={NULL,NULL};
|
|
char keyid[17];
|
|
LDAPMod mod, *attrs[2];
|
|
|
|
memset(&mod,0,sizeof(mod));
|
|
mod.mod_op=LDAP_MOD_ADD;
|
|
mod.mod_type=pgpkeystr;
|
|
mod.mod_values=key;
|
|
attrs[0]=&mod;
|
|
attrs[1]=NULL;
|
|
|
|
dn=malloc(strlen("pgpCertid=virtual,")+strlen(basekeyspacedn)+1);
|
|
if(dn==NULL)
|
|
{
|
|
fprintf(console,"gpgkeys: can't allocate memory for keyserver record\n");
|
|
ret=KEYSERVER_NO_MEMORY;
|
|
goto fail;
|
|
}
|
|
|
|
strcpy(dn,"pgpCertid=virtual,");
|
|
strcat(dn,basekeyspacedn);
|
|
|
|
key[0]=malloc(1);
|
|
if(key[0]==NULL)
|
|
{
|
|
fprintf(console,"gpgkeys: unable to allocate memory for key\n");
|
|
ret=KEYSERVER_NO_MEMORY;
|
|
goto fail;
|
|
}
|
|
|
|
key[0][0]='\0';
|
|
|
|
/* Read and throw away stdin until we see the BEGIN */
|
|
|
|
while(fgets(line,MAX_LINE,input)!=NULL)
|
|
if(sscanf(line,"KEY %16s BEGIN\n",keyid)==1)
|
|
{
|
|
begin=1;
|
|
break;
|
|
}
|
|
|
|
if(!begin)
|
|
{
|
|
/* i.e. eof before the KEY BEGIN was found. This isn't an
|
|
error. */
|
|
*eof=1;
|
|
ret=KEYSERVER_OK;
|
|
goto fail;
|
|
}
|
|
|
|
/* Now slurp up everything until we see the END */
|
|
|
|
while(fgets(line,MAX_LINE,input)!=NULL)
|
|
if(sscanf(line,"KEY %16s END\n",keyid)==1)
|
|
{
|
|
end=1;
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
keysize+=strlen(line);
|
|
key[0]=realloc(key[0],keysize);
|
|
if(key[0]==NULL)
|
|
{
|
|
fprintf(console,"gpgkeys: unable to reallocate for key\n");
|
|
ret=KEYSERVER_NO_MEMORY;
|
|
goto fail;
|
|
}
|
|
|
|
strcat(key[0],line);
|
|
}
|
|
|
|
if(!end)
|
|
{
|
|
fprintf(console,"gpgkeys: no KEY %s END found\n",keyid);
|
|
*eof=1;
|
|
ret=KEYSERVER_KEY_INCOMPLETE;
|
|
goto fail;
|
|
}
|
|
|
|
err=ldap_add_s(ldap,dn,attrs);
|
|
if(err!=LDAP_SUCCESS)
|
|
{
|
|
fprintf(console,"gpgkeys: error adding key %s to keyserver: %s\n",
|
|
keyid,ldap_err2string(err));
|
|
ret=ldap_err_to_gpg_err(err);
|
|
goto fail;
|
|
}
|
|
|
|
ret=KEYSERVER_OK;
|
|
|
|
fail:
|
|
|
|
free(key[0]);
|
|
free(dn);
|
|
|
|
if(ret!=0 && begin)
|
|
fprintf(output,"KEY %s FAILED %d\n",keyid,ret);
|
|
|
|
/* Not a fatal error */
|
|
if(ret==KEYSERVER_KEY_EXISTS)
|
|
ret=KEYSERVER_OK;
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* Note that key-not-found is not a fatal error */
|
|
static int
|
|
get_key(char *getkey)
|
|
{
|
|
LDAPMessage *res,*each;
|
|
int ret=KEYSERVER_INTERNAL_ERROR,err,count;
|
|
struct keylist *dupelist=NULL;
|
|
char search[62];
|
|
/* This ordering is significant - specifically, "pgpcertid" needs to
|
|
be the second item in the list, since everything after it may be
|
|
discarded if the user isn't in verbose mode. */
|
|
char *attrs[]={"replaceme","pgpcertid","pgpuserid","pgpkeyid","pgprevoked",
|
|
"pgpdisabled","pgpkeycreatetime","modifytimestamp",
|
|
"pgpkeysize","pgpkeytype",NULL};
|
|
attrs[0]=pgpkeystr; /* Some compilers don't like using variables as
|
|
array initializers. */
|
|
|
|
/* Build the search string */
|
|
|
|
/* GPG can send us a v4 fingerprint, a v3 or v4 long key id, or a v3
|
|
or v4 short key id */
|
|
|
|
if(strncmp(getkey,"0x",2)==0)
|
|
getkey+=2;
|
|
|
|
if(strlen(getkey)==32)
|
|
{
|
|
fprintf(console,
|
|
"gpgkeys: LDAP keyservers do not support v3 fingerprints\n");
|
|
fprintf(output,"KEY 0x%s BEGIN\n",getkey);
|
|
fprintf(output,"KEY 0x%s FAILED %d\n",getkey,KEYSERVER_NOT_SUPPORTED);
|
|
return KEYSERVER_NOT_SUPPORTED;
|
|
}
|
|
|
|
if(strlen(getkey)>16)
|
|
{
|
|
char *offset=&getkey[strlen(getkey)-16];
|
|
|
|
/* fingerprint. Take the last 16 characters and treat it like a
|
|
long key id */
|
|
|
|
if(include_subkeys)
|
|
sprintf(search,"(|(pgpcertid=%.16s)(pgpsubkeyid=%.16s))",
|
|
offset,offset);
|
|
else
|
|
sprintf(search,"(pgpcertid=%.16s)",offset);
|
|
}
|
|
else if(strlen(getkey)>8)
|
|
{
|
|
/* long key id */
|
|
|
|
if(include_subkeys)
|
|
sprintf(search,"(|(pgpcertid=%.16s)(pgpsubkeyid=%.16s))",
|
|
getkey,getkey);
|
|
else
|
|
sprintf(search,"(pgpcertid=%.16s)",getkey);
|
|
}
|
|
else
|
|
{
|
|
/* short key id */
|
|
|
|
sprintf(search,"(pgpkeyid=%.8s)",getkey);
|
|
}
|
|
|
|
fprintf(output,"KEY 0x%s BEGIN\n",getkey);
|
|
|
|
if(verbose>2)
|
|
fprintf(console,"gpgkeys: LDAP fetch for: %s\n",search);
|
|
|
|
if(!verbose)
|
|
attrs[2]=NULL; /* keep only pgpkey(v2) and pgpcertid */
|
|
|
|
if(verbose)
|
|
fprintf(console,"gpgkeys: requesting key 0x%s from ldap://%s%s%s\n",
|
|
getkey,host,portstr[0]?":":"",portstr[0]?portstr:"");
|
|
|
|
err=ldap_search_s(ldap,basekeyspacedn,
|
|
LDAP_SCOPE_SUBTREE,search,attrs,0,&res);
|
|
if(err!=0)
|
|
{
|
|
int errtag=ldap_err_to_gpg_err(err);
|
|
|
|
fprintf(console,"gpgkeys: LDAP search error: %s\n",ldap_err2string(err));
|
|
fprintf(output,"KEY 0x%s FAILED %d\n",getkey,errtag);
|
|
return errtag;
|
|
}
|
|
|
|
count=ldap_count_entries(ldap,res);
|
|
if(count<1)
|
|
{
|
|
fprintf(console,"gpgkeys: key %s not found on keyserver\n",getkey);
|
|
fprintf(output,"KEY 0x%s FAILED %d\n",getkey,KEYSERVER_KEY_NOT_FOUND);
|
|
}
|
|
else
|
|
{
|
|
/* There may be more than one unique result for a given keyID,
|
|
so we should fetch them all (test this by fetching short key
|
|
id 0xDEADBEEF). */
|
|
|
|
each=ldap_first_entry(ldap,res);
|
|
while(each!=NULL)
|
|
{
|
|
char **vals,**certid;
|
|
|
|
/* Use the long keyid to remove duplicates. The LDAP server
|
|
returns the same keyid more than once if there are
|
|
multiple user IDs on the key. Note that this does NOT
|
|
mean that a keyid that exists multiple times on the
|
|
keyserver will not be fetched. It means that each KEY,
|
|
no matter how many user IDs share its keyid, will be
|
|
fetched only once. If a keyid that belongs to more than
|
|
one key is fetched, the server quite properly responds
|
|
with all matching keys. -ds */
|
|
|
|
certid=ldap_get_values(ldap,each,"pgpcertid");
|
|
if(certid!=NULL)
|
|
{
|
|
if(!key_in_keylist(certid[0],dupelist))
|
|
{
|
|
/* it's not a duplicate, so add it */
|
|
|
|
int rc=add_key_to_keylist(certid[0],&dupelist);
|
|
if(rc)
|
|
{
|
|
ret=rc;
|
|
goto fail;
|
|
}
|
|
|
|
if(verbose)
|
|
{
|
|
vals=ldap_get_values(ldap,each,"pgpuserid");
|
|
if(vals!=NULL)
|
|
{
|
|
/* This is wrong, as the user ID is UTF8. A
|
|
better way to handle this would be to send it
|
|
over to gpg and display it on that side of
|
|
the pipe. */
|
|
fprintf(console,"\nUser ID:\t%s\n",vals[0]);
|
|
ldap_value_free(vals);
|
|
}
|
|
|
|
vals=ldap_get_values(ldap,each,"pgprevoked");
|
|
if(vals!=NULL)
|
|
{
|
|
if(atoi(vals[0])==1)
|
|
fprintf(console,"\t\t** KEY REVOKED **\n");
|
|
ldap_value_free(vals);
|
|
}
|
|
|
|
vals=ldap_get_values(ldap,each,"pgpdisabled");
|
|
if(vals!=NULL)
|
|
{
|
|
if(atoi(vals[0])==1)
|
|
fprintf(console,"\t\t** KEY DISABLED **\n");
|
|
ldap_value_free(vals);
|
|
}
|
|
|
|
vals=ldap_get_values(ldap,each,"pgpkeyid");
|
|
if(vals!=NULL)
|
|
{
|
|
fprintf(console,"Short key ID:\t%s\n",vals[0]);
|
|
ldap_value_free(vals);
|
|
}
|
|
|
|
fprintf(console,"Long key ID:\t%s\n",certid[0]);
|
|
|
|
/* YYYYMMDDHHmmssZ */
|
|
|
|
vals=ldap_get_values(ldap,each,"pgpkeycreatetime");
|
|
if(vals!=NULL)
|
|
{
|
|
if(strlen(vals[0])==15)
|
|
fprintf(console,"Key created:\t%.2s/%.2s/%.4s\n",
|
|
&vals[0][4],&vals[0][6],vals[0]);
|
|
ldap_value_free(vals);
|
|
}
|
|
|
|
vals=ldap_get_values(ldap,each,"modifytimestamp");
|
|
if(vals!=NULL)
|
|
{
|
|
if(strlen(vals[0])==15)
|
|
fprintf(console,"Key modified:\t%.2s/%.2s/%.4s\n",
|
|
&vals[0][4],&vals[0][6],vals[0]);
|
|
ldap_value_free(vals);
|
|
}
|
|
|
|
vals=ldap_get_values(ldap,each,"pgpkeysize");
|
|
if(vals!=NULL)
|
|
{
|
|
if(atoi(vals[0])>0)
|
|
fprintf(console,"Key size:\t%d\n",atoi(vals[0]));
|
|
ldap_value_free(vals);
|
|
}
|
|
|
|
vals=ldap_get_values(ldap,each,"pgpkeytype");
|
|
if(vals!=NULL)
|
|
{
|
|
fprintf(console,"Key type:\t%s\n",vals[0]);
|
|
ldap_value_free(vals);
|
|
}
|
|
}
|
|
|
|
vals=ldap_get_values(ldap,each,pgpkeystr);
|
|
if(vals==NULL)
|
|
{
|
|
int errtag=ldap_to_gpg_err(ldap);
|
|
|
|
fprintf(console,"gpgkeys: unable to retrieve key %s "
|
|
"from keyserver\n",getkey);
|
|
fprintf(output,"KEY 0x%s FAILED %d\n",getkey,errtag);
|
|
}
|
|
else
|
|
{
|
|
fprintf(output,"%sKEY 0x%s END\n",vals[0],getkey);
|
|
|
|
ldap_value_free(vals);
|
|
}
|
|
}
|
|
|
|
ldap_value_free(certid);
|
|
}
|
|
|
|
each=ldap_next_entry(ldap,each);
|
|
}
|
|
}
|
|
|
|
ret=KEYSERVER_OK;
|
|
|
|
fail:
|
|
ldap_msgfree(res);
|
|
free_keylist(dupelist);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
printquoted(FILE *stream,char *string,char delim)
|
|
{
|
|
while(*string)
|
|
{
|
|
if(*string==delim || *string=='%')
|
|
fprintf(stream,"%%%02x",*string);
|
|
else
|
|
fputc(*string,stream);
|
|
|
|
string++;
|
|
}
|
|
}
|
|
|
|
/* Returns 0 on success and -1 on error. Note that key-not-found is
|
|
not an error! */
|
|
static int
|
|
search_key(char *searchkey)
|
|
{
|
|
char **vals;
|
|
LDAPMessage *res,*each;
|
|
int err,count=0;
|
|
struct keylist *dupelist=NULL;
|
|
/* The maximum size of the search, including the optional stuff and
|
|
the trailing \0 */
|
|
char search[2+12+MAX_LINE+2+15+14+1+1];
|
|
char *attrs[]={"pgpcertid","pgpuserid","pgprevoked","pgpdisabled",
|
|
"pgpkeycreatetime","pgpkeyexpiretime","modifytimestamp",
|
|
"pgpkeysize","pgpkeytype",NULL};
|
|
|
|
fprintf(output,"SEARCH %s BEGIN\n",searchkey);
|
|
|
|
/* Build the search string */
|
|
|
|
sprintf(search,"%s(pgpuserid=*%s*)%s%s%s",
|
|
(!(include_disabled&&include_revoked))?"(&":"",
|
|
searchkey,
|
|
include_disabled?"":"(pgpdisabled=0)",
|
|
include_revoked?"":"(pgprevoked=0)",
|
|
!(include_disabled&&include_revoked)?")":"");
|
|
|
|
if(verbose>2)
|
|
fprintf(console,"gpgkeys: LDAP search for: %s\n",search);
|
|
|
|
fprintf(console,("gpgkeys: searching for \"%s\" from LDAP server %s\n"),
|
|
searchkey,host);
|
|
|
|
err=ldap_search_s(ldap,basekeyspacedn,
|
|
LDAP_SCOPE_SUBTREE,search,attrs,0,&res);
|
|
if(err!=LDAP_SUCCESS && err!=LDAP_SIZELIMIT_EXCEEDED)
|
|
{
|
|
int errtag=ldap_err_to_gpg_err(err);
|
|
|
|
fprintf(output,"SEARCH %s FAILED %d\n",searchkey,errtag);
|
|
fprintf(console,"gpgkeys: LDAP search error: %s\n",ldap_err2string(err));
|
|
return errtag;
|
|
}
|
|
|
|
/* The LDAP server doesn't return a real count of unique keys, so we
|
|
can't use ldap_count_entries here. */
|
|
each=ldap_first_entry(ldap,res);
|
|
while(each!=NULL)
|
|
{
|
|
char **certid=ldap_get_values(ldap,each,"pgpcertid");
|
|
|
|
if(certid!=NULL)
|
|
{
|
|
if(!key_in_keylist(certid[0],dupelist))
|
|
{
|
|
int rc=add_key_to_keylist(certid[0],&dupelist);
|
|
if(rc!=0)
|
|
{
|
|
fprintf(output,"SEARCH %s FAILED %d\n",searchkey,rc);
|
|
free_keylist(dupelist);
|
|
return rc;
|
|
}
|
|
|
|
count++;
|
|
}
|
|
}
|
|
|
|
each=ldap_next_entry(ldap,each);
|
|
}
|
|
|
|
if(err==LDAP_SIZELIMIT_EXCEEDED)
|
|
fprintf(console,"gpgkeys: search results exceeded server limit. First %d results shown.\n",count);
|
|
|
|
free_keylist(dupelist);
|
|
dupelist=NULL;
|
|
|
|
if(count<1)
|
|
fprintf(output,"info:1:0\n");
|
|
else
|
|
{
|
|
fprintf(output,"info:1:%d\n",count);
|
|
|
|
each=ldap_first_entry(ldap,res);
|
|
while(each!=NULL)
|
|
{
|
|
char **certid;
|
|
|
|
certid=ldap_get_values(ldap,each,"pgpcertid");
|
|
if(certid!=NULL)
|
|
{
|
|
LDAPMessage *uids;
|
|
|
|
/* Have we seen this certid before? */
|
|
if(!key_in_keylist(certid[0],dupelist))
|
|
{
|
|
int rc=add_key_to_keylist(certid[0],&dupelist);
|
|
if(rc)
|
|
{
|
|
fprintf(output,"SEARCH %s FAILED %d\n",searchkey,rc);
|
|
free_keylist(dupelist);
|
|
ldap_value_free(certid);
|
|
ldap_msgfree(res);
|
|
return rc;
|
|
}
|
|
|
|
fprintf(output,"pub:%s:",certid[0]);
|
|
|
|
vals=ldap_get_values(ldap,each,"pgpkeytype");
|
|
if(vals!=NULL)
|
|
{
|
|
/* The LDAP server doesn't exactly handle this
|
|
well. */
|
|
if(strcasecmp(vals[0],"RSA")==0)
|
|
fprintf(output,"1");
|
|
else if(strcasecmp(vals[0],"DSS/DH")==0)
|
|
fprintf(output,"17");
|
|
ldap_value_free(vals);
|
|
}
|
|
|
|
fputc(':',output);
|
|
|
|
vals=ldap_get_values(ldap,each,"pgpkeysize");
|
|
if(vals!=NULL)
|
|
{
|
|
/* Not sure why, but some keys are listed with a
|
|
key size of 0. Treat that like an
|
|
unknown. */
|
|
if(atoi(vals[0])>0)
|
|
fprintf(output,"%d",atoi(vals[0]));
|
|
ldap_value_free(vals);
|
|
}
|
|
|
|
fputc(':',output);
|
|
|
|
/* YYYYMMDDHHmmssZ */
|
|
|
|
vals=ldap_get_values(ldap,each,"pgpkeycreatetime");
|
|
if(vals!=NULL && strlen(vals[0])==15)
|
|
{
|
|
fprintf(output,"%u",
|
|
(unsigned int)ldap2epochtime(vals[0]));
|
|
ldap_value_free(vals);
|
|
}
|
|
|
|
fputc(':',output);
|
|
|
|
vals=ldap_get_values(ldap,each,"pgpkeyexpiretime");
|
|
if(vals!=NULL && strlen(vals[0])==15)
|
|
{
|
|
fprintf(output,"%u",
|
|
(unsigned int)ldap2epochtime(vals[0]));
|
|
ldap_value_free(vals);
|
|
}
|
|
|
|
fputc(':',output);
|
|
|
|
vals=ldap_get_values(ldap,each,"pgprevoked");
|
|
if(vals!=NULL)
|
|
{
|
|
if(atoi(vals[0])==1)
|
|
fprintf(output,"r");
|
|
ldap_value_free(vals);
|
|
}
|
|
|
|
vals=ldap_get_values(ldap,each,"pgpdisabled");
|
|
if(vals!=NULL)
|
|
{
|
|
if(atoi(vals[0])==1)
|
|
fprintf(output,"d");
|
|
ldap_value_free(vals);
|
|
}
|
|
|
|
#if 0
|
|
/* This is not yet specified in the keyserver
|
|
protocol, but may be someday. */
|
|
fputc(':',output);
|
|
|
|
vals=ldap_get_values(ldap,each,"modifytimestamp");
|
|
if(vals!=NULL && strlen(vals[0])==15)
|
|
{
|
|
fprintf(output,"%u",
|
|
(unsigned int)ldap2epochtime(vals[0]));
|
|
ldap_value_free(vals);
|
|
}
|
|
#endif
|
|
|
|
fprintf(output,"\n");
|
|
|
|
/* Now print all the uids that have this certid */
|
|
uids=ldap_first_entry(ldap,res);
|
|
while(uids!=NULL)
|
|
{
|
|
vals=ldap_get_values(ldap,uids,"pgpcertid");
|
|
if(vals!=NULL)
|
|
{
|
|
if(strcasecmp(certid[0],vals[0])==0)
|
|
{
|
|
char **uidvals;
|
|
|
|
fprintf(output,"uid:");
|
|
|
|
uidvals=ldap_get_values(ldap,uids,"pgpuserid");
|
|
if(uidvals!=NULL)
|
|
{
|
|
/* Need to escape any colons */
|
|
printquoted(output,uidvals[0],':');
|
|
ldap_value_free(uidvals);
|
|
}
|
|
|
|
fprintf(output,"\n");
|
|
}
|
|
|
|
ldap_value_free(vals);
|
|
}
|
|
|
|
uids=ldap_next_entry(ldap,uids);
|
|
}
|
|
}
|
|
|
|
ldap_value_free(certid);
|
|
}
|
|
|
|
each=ldap_next_entry(ldap,each);
|
|
}
|
|
}
|
|
|
|
ldap_msgfree(res);
|
|
free_keylist(dupelist);
|
|
|
|
fprintf(output,"SEARCH %s END\n",searchkey);
|
|
|
|
return KEYSERVER_OK;
|
|
}
|
|
|
|
static void
|
|
fail_all(struct keylist *keylist,int action,int err)
|
|
{
|
|
if(!keylist)
|
|
return;
|
|
|
|
if(action==SEARCH)
|
|
{
|
|
fprintf(output,"SEARCH ");
|
|
while(keylist)
|
|
{
|
|
fprintf(output,"%s ",keylist->str);
|
|
keylist=keylist->next;
|
|
}
|
|
fprintf(output,"FAILED %d\n",err);
|
|
}
|
|
else
|
|
while(keylist)
|
|
{
|
|
fprintf(output,"KEY %s FAILED %d\n",keylist->str,err);
|
|
keylist=keylist->next;
|
|
}
|
|
}
|
|
|
|
static int
|
|
find_basekeyspacedn(void)
|
|
{
|
|
int err,i;
|
|
char *attr[]={"namingContexts",NULL,NULL,NULL};
|
|
LDAPMessage *res;
|
|
char **context;
|
|
|
|
/* Look for namingContexts */
|
|
err=ldap_search_s(ldap,"",LDAP_SCOPE_BASE,"(objectClass=*)",attr,0,&res);
|
|
if(err==LDAP_SUCCESS)
|
|
{
|
|
context=ldap_get_values(ldap,res,"namingContexts");
|
|
if(context)
|
|
{
|
|
attr[0]="pgpBaseKeySpaceDN";
|
|
attr[1]="pgpVersion";
|
|
attr[2]="pgpSoftware";
|
|
|
|
real_ldap=1;
|
|
|
|
/* We found some, so try each namingContext as the search base
|
|
and look for pgpBaseKeySpaceDN. Because we found this, we
|
|
know we're talking to a regular-ish LDAP server and not a
|
|
LDAP keyserver. */
|
|
|
|
for(i=0;context[i] && !basekeyspacedn;i++)
|
|
{
|
|
char **vals;
|
|
LDAPMessage *si_res;
|
|
err=ldap_search_s(ldap,context[i],LDAP_SCOPE_ONELEVEL,
|
|
"(cn=pgpServerInfo)",attr,0,&si_res);
|
|
if(err!=LDAP_SUCCESS)
|
|
return err;
|
|
|
|
vals=ldap_get_values(ldap,si_res,"pgpBaseKeySpaceDN");
|
|
if(vals)
|
|
{
|
|
/* This is always "OU=ACTIVE,O=PGP KEYSPACE,C=US", but
|
|
it might not be in the future. */
|
|
|
|
basekeyspacedn=strdup(vals[0]);
|
|
ldap_value_free(vals);
|
|
}
|
|
|
|
if(verbose>1)
|
|
{
|
|
vals=ldap_get_values(ldap,si_res,"pgpSoftware");
|
|
if(vals)
|
|
{
|
|
fprintf(console,"Server: \t%s\n",vals[0]);
|
|
ldap_value_free(vals);
|
|
}
|
|
|
|
vals=ldap_get_values(ldap,si_res,"pgpVersion");
|
|
if(vals)
|
|
{
|
|
fprintf(console,"Version:\t%s\n",vals[0]);
|
|
ldap_value_free(vals);
|
|
}
|
|
}
|
|
|
|
ldap_msgfree(si_res);
|
|
}
|
|
|
|
ldap_value_free(context);
|
|
}
|
|
|
|
ldap_msgfree(res);
|
|
}
|
|
else
|
|
{
|
|
/* We don't have an answer yet, which means the server might be
|
|
a LDAP keyserver. */
|
|
char **vals;
|
|
LDAPMessage *si_res;
|
|
|
|
attr[0]="pgpBaseKeySpaceDN";
|
|
attr[1]="version";
|
|
attr[2]="software";
|
|
|
|
err=ldap_search_s(ldap,"cn=pgpServerInfo",LDAP_SCOPE_BASE,
|
|
"(objectClass=*)",attr,0,&si_res);
|
|
if(err!=LDAP_SUCCESS)
|
|
return err;
|
|
|
|
vals=ldap_get_values(ldap,si_res,"baseKeySpaceDN");
|
|
if(vals)
|
|
{
|
|
basekeyspacedn=strdup(vals[0]);
|
|
ldap_value_free(vals);
|
|
}
|
|
|
|
if(verbose>1)
|
|
{
|
|
vals=ldap_get_values(ldap,si_res,"software");
|
|
if(vals)
|
|
{
|
|
fprintf(console,"Server: \t%s\n",vals[0]);
|
|
ldap_value_free(vals);
|
|
}
|
|
}
|
|
|
|
vals=ldap_get_values(ldap,si_res,"version");
|
|
if(vals)
|
|
{
|
|
if(verbose>1)
|
|
fprintf(console,"Version:\t%s\n",vals[0]);
|
|
|
|
/* If the version is high enough, use the new pgpKeyV2
|
|
attribute. This design if iffy at best, but it matches how
|
|
PGP does it. I figure the NAI folks assumed that there would
|
|
never be a LDAP keyserver vendor with a different numbering
|
|
scheme. */
|
|
if(atoi(vals[0])>1)
|
|
pgpkeystr="pgpKeyV2";
|
|
|
|
ldap_value_free(vals);
|
|
}
|
|
|
|
ldap_msgfree(si_res);
|
|
}
|
|
|
|
return LDAP_SUCCESS;
|
|
}
|
|
|
|
int
|
|
main(int argc,char *argv[])
|
|
{
|
|
int port=0,arg,err,action=-1,ret=KEYSERVER_INTERNAL_ERROR;
|
|
char line[MAX_LINE];
|
|
int version,failed=0,use_ssl=0,use_tls=0;
|
|
struct keylist *keylist=NULL,*keyptr=NULL;
|
|
|
|
console=stderr;
|
|
|
|
while((arg=getopt(argc,argv,"hVo:"))!=-1)
|
|
switch(arg)
|
|
{
|
|
default:
|
|
case 'h':
|
|
fprintf(console,"-h\thelp\n");
|
|
fprintf(console,"-V\tversion\n");
|
|
fprintf(console,"-o\toutput to this file\n");
|
|
return KEYSERVER_OK;
|
|
|
|
case 'V':
|
|
fprintf(stdout,"%d\n%s\n",KEYSERVER_PROTO_VERSION,VERSION);
|
|
return KEYSERVER_OK;
|
|
|
|
case 'o':
|
|
output=fopen(optarg,"w");
|
|
if(output==NULL)
|
|
{
|
|
fprintf(console,"gpgkeys: Cannot open output file \"%s\": %s\n",
|
|
optarg,strerror(errno));
|
|
return KEYSERVER_INTERNAL_ERROR;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
if(argc>optind)
|
|
{
|
|
input=fopen(argv[optind],"r");
|
|
if(input==NULL)
|
|
{
|
|
fprintf(console,"gpgkeys: Cannot open input file \"%s\": %s\n",
|
|
argv[optind],strerror(errno));
|
|
return KEYSERVER_INTERNAL_ERROR;
|
|
}
|
|
}
|
|
|
|
if(input==NULL)
|
|
input=stdin;
|
|
|
|
if(output==NULL)
|
|
output=stdout;
|
|
|
|
/* Get the command and info block */
|
|
|
|
while(fgets(line,MAX_LINE,input)!=NULL)
|
|
{
|
|
char commandstr[7];
|
|
char optionstr[30];
|
|
char schemestr[80];
|
|
char hash;
|
|
|
|
if(line[0]=='\n')
|
|
break;
|
|
|
|
if(sscanf(line,"%c",&hash)==1 && hash=='#')
|
|
continue;
|
|
|
|
if(sscanf(line,"COMMAND %6s\n",commandstr)==1)
|
|
{
|
|
commandstr[6]='\0';
|
|
|
|
if(strcasecmp(commandstr,"get")==0)
|
|
action=GET;
|
|
else if(strcasecmp(commandstr,"send")==0)
|
|
action=SEND;
|
|
else if(strcasecmp(commandstr,"search")==0)
|
|
action=SEARCH;
|
|
|
|
continue;
|
|
}
|
|
|
|
if(sscanf(line,"HOST %79s\n",host)==1)
|
|
{
|
|
host[79]='\0';
|
|
continue;
|
|
}
|
|
|
|
if(sscanf(line,"PORT %9s\n",portstr)==1)
|
|
{
|
|
portstr[9]='\0';
|
|
port=atoi(portstr);
|
|
continue;
|
|
}
|
|
|
|
if(sscanf(line,"SCHEME %79s\n",schemestr)==1)
|
|
{
|
|
schemestr[79]='\0';
|
|
if(strcasecmp(schemestr,"ldaps")==0)
|
|
{
|
|
port=636;
|
|
use_ssl=1;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if(sscanf(line,"VERSION %d\n",&version)==1)
|
|
{
|
|
if(version!=KEYSERVER_PROTO_VERSION)
|
|
{
|
|
ret=KEYSERVER_VERSION_ERROR;
|
|
goto fail;
|
|
}
|
|
|
|
continue;
|
|
}
|
|
|
|
if(sscanf(line,"OPTION %29s\n",optionstr)==1)
|
|
{
|
|
int no=0;
|
|
char *start=&optionstr[0];
|
|
|
|
optionstr[29]='\0';
|
|
|
|
if(strncasecmp(optionstr,"no-",3)==0)
|
|
{
|
|
no=1;
|
|
start=&optionstr[3];
|
|
}
|
|
|
|
if(strcasecmp(start,"verbose")==0)
|
|
{
|
|
if(no)
|
|
verbose--;
|
|
else
|
|
verbose++;
|
|
}
|
|
else if(strcasecmp(start,"include-disabled")==0)
|
|
{
|
|
if(no)
|
|
include_disabled=0;
|
|
else
|
|
include_disabled=1;
|
|
}
|
|
else if(strcasecmp(start,"include-revoked")==0)
|
|
{
|
|
if(no)
|
|
include_revoked=0;
|
|
else
|
|
include_revoked=1;
|
|
}
|
|
else if(strcasecmp(start,"include-subkeys")==0)
|
|
{
|
|
if(no)
|
|
include_subkeys=0;
|
|
else
|
|
include_subkeys=1;
|
|
}
|
|
else if(strncasecmp(start,"tls",3)==0)
|
|
{
|
|
if(no)
|
|
use_tls=0;
|
|
else if(start[3]=='=')
|
|
{
|
|
if(strcasecmp(&start[4],"no")==0)
|
|
use_tls=0;
|
|
else if(strcasecmp(&start[4],"try")==0)
|
|
use_tls=1;
|
|
else if(strcasecmp(&start[4],"warn")==0)
|
|
use_tls=2;
|
|
else if(strcasecmp(&start[4],"require")==0)
|
|
use_tls=3;
|
|
else
|
|
use_tls=1;
|
|
}
|
|
else if(start[3]=='\0')
|
|
use_tls=1;
|
|
}
|
|
|
|
continue;
|
|
}
|
|
}
|
|
|
|
/* If it's a GET or a SEARCH, the next thing to come in is the
|
|
keyids. If it's a SEND, then there are no keyids. */
|
|
|
|
if(action==SEND)
|
|
while(fgets(line,MAX_LINE,input)!=NULL && line[0]!='\n');
|
|
else if(action==GET || action==SEARCH)
|
|
{
|
|
for(;;)
|
|
{
|
|
struct keylist *work;
|
|
|
|
if(fgets(line,MAX_LINE,input)==NULL)
|
|
break;
|
|
else
|
|
{
|
|
if(line[0]=='\n' || line[0]=='\0')
|
|
break;
|
|
|
|
work=malloc(sizeof(struct keylist));
|
|
if(work==NULL)
|
|
{
|
|
fprintf(console,"gpgkeys: out of memory while "
|
|
"building key list\n");
|
|
ret=KEYSERVER_NO_MEMORY;
|
|
goto fail;
|
|
}
|
|
|
|
strcpy(work->str,line);
|
|
|
|
/* Trim the trailing \n */
|
|
work->str[strlen(line)-1]='\0';
|
|
|
|
work->next=NULL;
|
|
|
|
/* Always attach at the end to keep the list in proper
|
|
order for searching */
|
|
if(keylist==NULL)
|
|
keylist=work;
|
|
else
|
|
keyptr->next=work;
|
|
|
|
keyptr=work;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
fprintf(console,"gpgkeys: no keyserver command specified\n");
|
|
goto fail;
|
|
}
|
|
|
|
/* Send the response */
|
|
|
|
fprintf(output,"VERSION %d\n",KEYSERVER_PROTO_VERSION);
|
|
fprintf(output,"PROGRAM %s\n\n",VERSION);
|
|
|
|
if(verbose>1)
|
|
{
|
|
fprintf(console,"Host:\t\t%s\n",host);
|
|
if(port)
|
|
fprintf(console,"Port:\t\t%d\n",port);
|
|
fprintf(console,"Command:\t%s\n",action==GET?"GET":
|
|
action==SEND?"SEND":"SEARCH");
|
|
}
|
|
|
|
/* Note that this tries all A records on a given host (or at least,
|
|
OpenLDAP does). */
|
|
ldap=ldap_init(host,port);
|
|
if(ldap==NULL)
|
|
{
|
|
fprintf(console,"gpgkeys: internal LDAP init error: %s\n",
|
|
strerror(errno));
|
|
fail_all(keylist,action,KEYSERVER_INTERNAL_ERROR);
|
|
goto fail;
|
|
}
|
|
|
|
if(use_ssl)
|
|
{
|
|
if(!real_ldap)
|
|
{
|
|
fprintf(console,"gpgkeys: unable to make SSL connection: %s\n",
|
|
"not supported by the NAI LDAP keyserver");
|
|
fail_all(keylist,action,KEYSERVER_INTERNAL_ERROR);
|
|
goto fail;
|
|
}
|
|
else
|
|
{
|
|
#if defined(LDAP_OPT_X_TLS_HARD) && defined(HAVE_LDAP_SET_OPTION)
|
|
int ssl=LDAP_OPT_X_TLS_HARD;
|
|
err=ldap_set_option(ldap,LDAP_OPT_X_TLS,&ssl);
|
|
if(err!=LDAP_SUCCESS)
|
|
{
|
|
fprintf(console,"gpgkeys: unable to make SSL connection: %s\n",
|
|
ldap_err2string(err));
|
|
fail_all(keylist,action,ldap_err_to_gpg_err(err));
|
|
goto fail;
|
|
}
|
|
#else
|
|
fprintf(console,"gpgkeys: unable to make SSL connection: %s\n",
|
|
"not built with LDAPS support");
|
|
fail_all(keylist,action,KEYSERVER_INTERNAL_ERROR);
|
|
goto fail;
|
|
#endif
|
|
}
|
|
}
|
|
|
|
if((err=find_basekeyspacedn()))
|
|
{
|
|
fprintf(console,"gpgkeys: unable to retrieve LDAP base: %s\n",
|
|
ldap_err2string(err));
|
|
fail_all(keylist,action,ldap_err_to_gpg_err(err));
|
|
goto fail;
|
|
}
|
|
|
|
/* use_tls: 0=don't use, 1=try silently to use, 2=try loudly to use,
|
|
3=force use. */
|
|
if(use_tls)
|
|
{
|
|
if(!real_ldap)
|
|
{
|
|
if(use_tls>=2)
|
|
fprintf(console,"gpgkeys: unable to start TLS: %s\n",
|
|
"not supported by the NAI LDAP keyserver");
|
|
if(use_tls==3)
|
|
{
|
|
fail_all(keylist,action,KEYSERVER_INTERNAL_ERROR);
|
|
goto fail;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
#if defined(HAVE_LDAP_START_TLS_S) && defined(HAVE_LDAP_SET_OPTION)
|
|
int ver=LDAP_VERSION3;
|
|
|
|
err=LDAP_SUCCESS;
|
|
|
|
err=ldap_set_option(ldap,LDAP_OPT_PROTOCOL_VERSION,&ver);
|
|
if(err==LDAP_SUCCESS)
|
|
err=ldap_start_tls_s(ldap,NULL,NULL);
|
|
|
|
if(err!=LDAP_SUCCESS && use_tls>=2)
|
|
{
|
|
fprintf(console,"gpgkeys: unable to start TLS: %s\n",
|
|
ldap_err2string(err));
|
|
/* Are we forcing it? */
|
|
if(use_tls==3)
|
|
{
|
|
fail_all(keylist,action,ldap_err_to_gpg_err(err));
|
|
goto fail;
|
|
}
|
|
}
|
|
else if(verbose>1)
|
|
fprintf(console,"gpgkeys: TLS started successfully.\n");
|
|
#else
|
|
if(use_tls>=2)
|
|
fprintf(console,"gpgkeys: unable to start TLS: %s\n",
|
|
"not built with TLS support");
|
|
if(use_tls==3)
|
|
{
|
|
fail_all(keylist,action,KEYSERVER_INTERNAL_ERROR);
|
|
goto fail;
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
|
|
/* The LDAP keyserver doesn't require this, but it might be useful
|
|
if someone stores keys on a V2 LDAP server somewhere. (V3
|
|
doesn't require a bind). */
|
|
|
|
err=ldap_simple_bind_s(ldap,NULL,NULL);
|
|
if(err!=0)
|
|
{
|
|
fprintf(console,"gpgkeys: internal LDAP bind error: %s\n",
|
|
ldap_err2string(err));
|
|
fail_all(keylist,action,ldap_err_to_gpg_err(err));
|
|
goto fail;
|
|
}
|
|
|
|
switch(action)
|
|
{
|
|
case GET:
|
|
keyptr=keylist;
|
|
|
|
while(keyptr!=NULL)
|
|
{
|
|
if(get_key(keyptr->str)!=KEYSERVER_OK)
|
|
failed++;
|
|
|
|
keyptr=keyptr->next;
|
|
}
|
|
break;
|
|
|
|
case SEND:
|
|
{
|
|
int eof=0;
|
|
|
|
do
|
|
{
|
|
if(real_ldap)
|
|
{
|
|
if(send_key(&eof)!=KEYSERVER_OK)
|
|
failed++;
|
|
}
|
|
else
|
|
{
|
|
if(send_key_keyserver(&eof)!=KEYSERVER_OK)
|
|
failed++;
|
|
}
|
|
}
|
|
while(!eof);
|
|
}
|
|
break;
|
|
|
|
case SEARCH:
|
|
{
|
|
char *searchkey=NULL;
|
|
int len=0;
|
|
|
|
/* To search, we stick a * in between each key to search for.
|
|
This means that if the user enters words, they'll get
|
|
"enters*words". If the user "enters words", they'll get
|
|
"enters words" */
|
|
|
|
keyptr=keylist;
|
|
while(keyptr!=NULL)
|
|
{
|
|
len+=strlen(keyptr->str)+1;
|
|
keyptr=keyptr->next;
|
|
}
|
|
|
|
searchkey=malloc(len+1);
|
|
if(searchkey==NULL)
|
|
{
|
|
ret=KEYSERVER_NO_MEMORY;
|
|
fail_all(keylist,action,KEYSERVER_NO_MEMORY);
|
|
goto fail;
|
|
}
|
|
|
|
searchkey[0]='\0';
|
|
|
|
keyptr=keylist;
|
|
while(keyptr!=NULL)
|
|
{
|
|
strcat(searchkey,keyptr->str);
|
|
strcat(searchkey,"*");
|
|
keyptr=keyptr->next;
|
|
}
|
|
|
|
/* Nail that last "*" */
|
|
if(*searchkey)
|
|
searchkey[strlen(searchkey)-1]='\0';
|
|
|
|
if(search_key(searchkey)!=KEYSERVER_OK)
|
|
failed++;
|
|
|
|
free(searchkey);
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
if(!failed)
|
|
ret=KEYSERVER_OK;
|
|
|
|
fail:
|
|
|
|
while(keylist!=NULL)
|
|
{
|
|
struct keylist *current=keylist;
|
|
keylist=keylist->next;
|
|
free(current);
|
|
}
|
|
|
|
if(input!=stdin)
|
|
fclose(input);
|
|
|
|
if(output!=stdout)
|
|
fclose(output);
|
|
|
|
if(ldap!=NULL)
|
|
ldap_unbind_s(ldap);
|
|
|
|
free(basekeyspacedn);
|
|
|
|
return ret;
|
|
}
|