2 Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015
3 Ben Kibbey <bjk@luxsci.net>
5 This file is part of libpwmd.
7 Libpwmd is free software: you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation, either version 2 of the License, or
10 (at your option) any later version.
12 Libpwmd is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with Libpwmd. If not, see <http://www.gnu.org/licenses/>.
31 #include <sys/types.h>
32 #include <sys/socket.h>
42 #include <sys/select.h>
62 #if defined(WITH_SSH) || defined(WITH_GNUTLS)
63 #include <sys/types.h>
64 #include <sys/socket.h>
66 #include <netinet/in.h>
69 #define FINISH(rc) (gpg_err_source(rc) == GPG_ERR_SOURCE_UNKNOWN) \
79 hook_read (assuan_context_t ctx
, assuan_fd_t fd
, void *data
, size_t len
)
81 #if defined(WITH_SSH) || defined(WITH_GNUTLS)
82 pwm_t
*pwm
= assuan_get_pointer (ctx
);
85 if (pwm
&& pwm
->tcp
&& pwm
->tcp
->ssh
)
86 return read_hook_ssh (pwm
->tcp
->ssh
, fd
, data
, len
);
89 if (pwm
&& pwm
->tcp
&& pwm
->tcp
->tls
)
90 return read_hook_tls (pwm
, fd
, data
, len
);
94 return read ((int) fd
, data
, len
);
98 hook_write (assuan_context_t ctx
, assuan_fd_t fd
, const void *data
,
102 #if defined(WITH_SSH) || defined(WITH_GNUTLS)
103 pwm_t
*pwm
= assuan_get_pointer (ctx
);
106 if (pwm
&& pwm
->tcp
&& pwm
->tcp
->ssh
)
107 return write_hook_ssh (pwm
->tcp
->ssh
, fd
, data
, len
);
110 if (pwm
&& pwm
->tcp
&& pwm
->tcp
->tls
)
111 return write_hook_tls (pwm
, fd
, data
, len
);
115 /* libassuan cannot handle EAGAIN when doing writes. */
118 wrote
= write ((int) fd
, data
, len
);
119 if (wrote
== -1 && errno
== EAGAIN
)
122 while (wrote
== -1 && errno
== EAGAIN
);
128 hook_waitpid (assuan_context_t ctx
, pid_t pid
, int action
, int *status
,
131 return waitpid (pid
, status
, options
);
137 static int initialized
;
140 // May be called more than once.
141 gnutls_global_init ();
151 bindtextdomain ("libpwmd", LOCALEDIR
);
165 gnutls_global_deinit ();
170 _connect_finalize (pwm_t
* pwm
)
175 int n
= assuan_get_active_fds (pwm
->ctx
, 0, active
, N_ARRAY (active
));
178 return GPG_ERR_EBADFD
;
182 pwm
->pinentry_pid
= -1;
185 rc
= pwmd_command (pwm
, &result
, NULL
, NULL
, NULL
, "GETINFO VERSION");
188 pwm
->version
= strtoul (result
, NULL
, 16);
192 if (!rc
&& pwm
->name
)
193 rc
= pwmd_command (pwm
, NULL
, NULL
, NULL
, NULL
, "OPTION NAME=%s",
200 connect_uds (pwm_t
* pwm
, const char *path
)
202 char *socketpath
= NULL
;
208 return GPG_ERR_INV_ARG
;
210 pwbuf
= _getpwuid (&pw
);
212 return gpg_error_from_syserror ();
215 socketpath
= pwmd_strdup_printf ("%s/.pwmd/socket", pw
.pw_dir
);
217 socketpath
= _expand_homedir ((char *) path
, &pw
);
221 return GPG_ERR_ENOMEM
;
223 rc
= assuan_socket_connect (pwm
->ctx
, socketpath
, ASSUAN_INVALID_FD
, 0);
224 pwmd_free (socketpath
);
225 return rc
? rc
: _connect_finalize (pwm
);
229 init_handle (pwm_t
* pwm
)
232 static struct assuan_malloc_hooks mhooks
= {
233 pwmd_malloc
, pwmd_realloc
, pwmd_free
235 static struct assuan_system_hooks shooks
= {
236 ASSUAN_SYSTEM_HOOKS_VERSION
,
244 NULL
, //sendmsg both are used for FD passing
252 rc
= assuan_new_ext (&pwm
->ctx
, GPG_ERR_SOURCE_DEFAULT
, &mhooks
, NULL
,
257 assuan_set_pointer (pwm
->ctx
, pwm
);
258 assuan_ctx_set_system_hooks (pwm
->ctx
, &shooks
);
262 #if defined(WITH_SSH) || defined(WITH_GNUTLS)
264 free_tcp (pwm_t
*pwm
)
266 struct tcp_s
*tcp
= pwm
->tcp
;
272 _free_ssh_conn (tcp
->ssh
);
278 pwmd_free (tcp
->host
);
281 freeaddrinfo (tcp
->addrs
);
285 pthread_cond_destroy (&tcp
->dns_cond
);
286 pthread_mutex_destroy (&tcp
->dns_mutex
);
292 #if defined(WITH_SSH) || defined(WITH_GNUTLS)
294 resolve_host_thread (void *arg
)
297 struct addrinfo hints
= { 0 };
303 hints
.ai_family
= AF_UNSPEC
;
306 hints
.ai_family
= AF_INET
;
309 hints
.ai_family
= AF_INET6
;
313 hints
.ai_socktype
= SOCK_STREAM
;
314 snprintf (portstr
, sizeof (portstr
), "%i", pwm
->tcp
->port
);
315 int *n
= pwmd_malloc (sizeof (int));
316 pthread_cleanup_push (pwmd_free
, n
);
317 *n
= getaddrinfo (pwm
->tcp
->host
, portstr
, &hints
, &pwm
->tcp
->addrs
);
318 pthread_cleanup_pop (0);
319 pthread_cond_broadcast (&pwm
->tcp
->dns_cond
);
325 tcp_connect_common (pwm_t
* pwm
)
327 #define TS_TIMEOUT 50000000L
334 n
= pthread_create (&tid
, NULL
, resolve_host_thread
, pwm
);
336 return gpg_error_from_errno (n
);
338 pthread_mutex_lock (&pwm
->tcp
->dns_mutex
);
345 clock_gettime (CLOCK_REALTIME
, &ts
);
346 if (ts
.tv_nsec
+ TS_TIMEOUT
>= 1000000000LL) {
351 ts
.tv_nsec
+= TS_TIMEOUT
;
355 #ifdef HAVE_PTHREAD_CANCEL
356 pthread_cancel (tid
);
357 pthread_join (tid
, NULL
);
359 pthread_join (tid
, (void **)&result
);
362 return GPG_ERR_CANCELED
;
365 n
= pthread_cond_timedwait (&pwm
->tcp
->dns_cond
, &pwm
->tcp
->dns_mutex
,
369 if (pwm
->socket_timeout
&& ts
.tv_sec
- now
>= pwm
->socket_timeout
)
371 #ifdef HAVE_PTHREAD_CANCEL
372 pthread_cancel (tid
);
373 pthread_join (tid
, NULL
);
375 pthread_join (tid
, (void **)&result
);
378 return GPG_ERR_ETIMEDOUT
;
385 #ifdef HAVE_PTHREAD_CANCEL
386 pthread_cancel (tid
);
387 pthread_join (tid
, NULL
);
389 pthread_join (tid
, (void **)&result
);
392 return gpg_error_from_errno (n
);
395 pthread_join (tid
, (void **)&result
);
402 return GPG_ERR_UNKNOWN_HOST
; //FIXME
404 for (pwm
->tcp
->addr
= pwm
->tcp
->addrs
; pwm
->tcp
->addr
;
405 pwm
->tcp
->addr
= pwm
->tcp
->addrs
->ai_next
)
407 pwm
->fd
= socket (pwm
->tcp
->addr
->ai_family
, SOCK_STREAM
, 0);
410 rc
= gpg_error_from_syserror ();
411 if (pwm
->tcp
->addr
== pwm
->tcp
->addrs
->ai_next
)
416 if (fcntl (pwm
->fd
, F_SETFL
, O_NONBLOCK
) == -1)
418 rc
= gpg_error_from_syserror ();
422 if (connect (pwm
->fd
, pwm
->tcp
->addr
->ai_addr
,
423 pwm
->tcp
->addr
->ai_family
== AF_INET6
424 ? sizeof (struct sockaddr_in6
)
425 : sizeof (struct sockaddr
)) == -1)
430 unsigned elapsed
= 0;
432 rc
= gpg_error_from_syserror ();
433 if (gpg_err_code (rc
) != GPG_ERR_EINPROGRESS
)
437 if (pwm
->tcp
->addr
== pwm
->tcp
->addrs
->ai_next
)
446 FD_SET (pwm
->fd
, &wfds
);
447 n
= select (pwm
->fd
+1, NULL
, &wfds
, NULL
, &tv
);
449 if (!n
|| pwm
->cancel
)
452 rc
= gpg_error (GPG_ERR_CANCELED
);
453 else if (++elapsed
>= pwm
->socket_timeout
)
454 rc
= gpg_error (GPG_ERR_ETIMEDOUT
);
460 socklen_t len
= sizeof(int);
462 getsockopt (pwm
->fd
, SOL_SOCKET
, SO_ERROR
, &n
, &len
);
464 rc
= gpg_error_from_errno (n
);
467 rc
= gpg_error_from_syserror ();
473 if (pwm
->tcp
->addr
== pwm
->tcp
->addrs
->ai_next
474 || gpg_err_code (rc
) == GPG_ERR_ETIMEDOUT
486 if (fcntl (pwm
->fd
, F_SETFL
, 0) == -1)
487 rc
= gpg_error_from_syserror ();
494 command_start (pwm_t
*pwm
)
500 pwmd_connect (pwm_t
* pwm
, const char *url
, ...)
506 return FINISH (GPG_ERR_INV_ARG
);
509 rc
= init_handle (pwm
);
516 if (!(pwm
->opts
& OPT_SIGPIPE
))
517 signal (SIGPIPE
, SIG_IGN
);
522 rc
= GPG_ERR_UNSUPPORTED_PROTOCOL
;
524 if (p
&& (*p
== '/' || *p
== '~'))
525 rc
= connect_uds (pwm
, p
);
526 else if (!p
|| !strncmp (p
, "file://", 7))
530 #ifdef DEFAULT_PWMD_SOCKET
532 p
= DEFAULT_PWMD_SOCKET
;
534 rc
= connect_uds (pwm
, p
);
536 else if (!strncmp (p
, "ssh://", 6) || !strncmp (p
, "ssh6://", 7) ||
537 !strncmp (p
, "ssh4://", 7))
540 return FINISH (GPG_ERR_NOT_IMPLEMENTED
);
544 char *username
= NULL
;
546 if (!strncmp (p
, "ssh6://", 7))
548 pwm
->prot
= PWMD_IPV6
;
551 else if (!strncmp (p
, "ssh4://", 7))
553 pwm
->prot
= PWMD_IPV4
;
558 pwm
->prot
= PWMD_IP_ANY
;
562 rc
= _parse_ssh_url (p
, &host
, &port
, &username
);
566 char *identity
= NULL
;
567 char *knownhosts
= NULL
;
570 identity
= va_arg (ap
, char *);
572 if (!identity
&& !pwm
->use_agent
)
573 rc
= GPG_ERR_INV_ARG
;
575 knownhosts
= va_arg (ap
, char *);
580 rc
= _do_ssh_connect (pwm
, host
, port
, identity
, username
,
584 rc
= _connect_finalize (pwm
);
591 pwmd_free (username
);
592 pwm
->local_pinentry
= 1;
595 else if (!strncmp (p
, "tls://", 6) || !strncmp (p
, "tls6://", 7) ||
596 !strncmp (p
, "tls4://", 7))
599 return FINISH (GPG_ERR_NOT_IMPLEMENTED
);
604 if (!strncmp (p
, "tls6://", 7))
606 pwm
->prot
= PWMD_IPV6
;
609 else if (!strncmp (p
, "tls4://", 7))
611 pwm
->prot
= PWMD_IPV4
;
616 pwm
->prot
= PWMD_IP_ANY
;
620 rc
= _parse_tls_url (p
, &host
, &port
);
624 char *clientcert
= NULL
;
625 char *clientkey
= NULL
;
628 char *server_fp
= NULL
;
631 clientcert
= va_arg (ap
, char *);
634 rc
= GPG_ERR_INV_ARG
;
637 clientkey
= va_arg (ap
, char *);
639 rc
= GPG_ERR_INV_ARG
;
642 cacert
= va_arg (ap
, char *);
644 rc
= GPG_ERR_INV_ARG
;
647 prio
= va_arg (ap
, char *);
648 server_fp
= va_arg (ap
, char *);
656 rc
= _do_tls_connect (pwm
, host
, port
, clientcert
, clientkey
,
657 cacert
, prio
, server_fp
, pwm
->tls_verify
);
660 rc
= _connect_finalize (pwm
);
667 pwm
->local_pinentry
= 1;
678 disconnect (pwm_t
* pwm
)
684 assuan_release (pwm
->ctx
);
686 #if defined(WITH_SSH) || defined(WITH_GNUTLS)
695 pwmd_close (pwm_t
* pwm
)
701 pwmd_free (pwm
->pinentry_error
);
702 pwmd_free (pwm
->pinentry_desc
);
703 pwmd_free (pwm
->pinentry_prompt
);
704 pwmd_free (pwm
->pinentry_tty
);
705 pwmd_free (pwm
->pinentry_display
);
706 pwmd_free (pwm
->pinentry_term
);
707 pwmd_free (pwm
->pinentry_lcctype
);
708 pwmd_free (pwm
->pinentry_lcmessages
);
709 pwmd_free (pwm
->filename
);
710 pwmd_free (pwm
->name
);
711 pwmd_free (pwm
->passphrase_info
);
712 pwmd_free (pwm
->passphrase_hint
);
716 _pinentry_disconnect (pwm
);
723 inquire_realloc_cb (void *data
, const void *buffer
, size_t len
)
725 membuf_t
*mem
= (membuf_t
*) data
;
731 if ((p
= pwmd_realloc (mem
->buf
, mem
->len
+ len
)) == NULL
)
732 return gpg_error (GPG_ERR_ENOMEM
);
735 memcpy ((char *) mem
->buf
+ mem
->len
, buffer
, len
);
741 get_password (pwm_t
* pwm
, char **result
, size_t * len
,
742 pwmd_pinentry_t w
, int echo
)
744 char buf
[LINE_MAX
] = { 0 }, *p
;
745 struct termios told
, tnew
;
754 if (!isatty (STDIN_FILENO
))
756 fprintf (stderr
, N_("Input is not from a terminal! Failing.\n"));
757 return GPG_ERR_ENOTTY
;
762 if (tcgetattr (STDIN_FILENO
, &told
) == -1)
763 return gpg_error_from_syserror ();
765 memcpy (&tnew
, &told
, sizeof (struct termios
));
766 tnew
.c_lflag
&= ~(ECHO
);
767 tnew
.c_lflag
|= ICANON
| ECHONL
;
769 if (tcsetattr (STDIN_FILENO
, TCSANOW
, &tnew
) == -1)
773 tcsetattr (STDIN_FILENO
, TCSANOW
, &told
);
774 return gpg_error_from_errno (n
);
778 if (pwm
->passphrase_hint
)
779 fprintf(stderr
, N_("Key info: %s\n"), pwm
->passphrase_hint
);
783 case PWMD_PINENTRY_OPEN
:
784 fprintf (stderr
, N_("Password for %s: "), pwm
->filename
);
786 case PWMD_PINENTRY_OPEN_FAILED
:
787 fprintf (stderr
, N_("Invalid password. Password for %s: "),
790 case PWMD_PINENTRY_SAVE
:
791 fprintf (stderr
, N_("New password for %s: "), pwm
->filename
);
793 case PWMD_PINENTRY_SAVE_CONFIRM
:
794 fprintf (stderr
, N_("Confirm password: "));
800 if ((p
= fgets (buf
, sizeof (buf
), stdin
)) == NULL
)
803 tcsetattr (STDIN_FILENO
, TCSANOW
, &told
);
808 tcsetattr (STDIN_FILENO
, TCSANOW
, &told
);
813 return GPG_ERR_CANCELED
;
816 /* Strip the newline character. */
817 p
[strlen (p
) - 1] = 0;
821 key
= pwmd_strdup_printf ("%s", p
);
822 memset (buf
, 0, sizeof (buf
));
824 return GPG_ERR_ENOMEM
;
835 *result
= pwmd_strdup ("");
845 pwmd_password (pwm_t
* pwm
, const char *keyword
, char **data
, size_t * size
)
848 int new_password
= 0;
849 char *password
= NULL
, *newpass
= NULL
;
860 if (!strcmp (keyword
, "NEW_PASSPHRASE"))
863 if (!new_password
&& pwm
->pinentry_try
)
867 if (pwm
->disable_pinentry
)
869 rc
= get_password (pwm
, &password
, size
,
870 new_password
? PWMD_PINENTRY_SAVE
:
871 error
? PWMD_PINENTRY_OPEN_FAILED
:
872 PWMD_PINENTRY_OPEN
, 0);
873 if (!rc
&& new_password
)
874 rc
= get_password (pwm
, &newpass
, size
, PWMD_PINENTRY_SAVE_CONFIRM
,
879 pwmd_pinentry_t which
;
883 ? PWMD_PINENTRY_SAVE_FAILED
: PWMD_PINENTRY_OPEN_FAILED
;
885 which
= new_password
? PWMD_PINENTRY_SAVE
: PWMD_PINENTRY_OPEN
;
887 rc
= pwmd_getpin (pwm
, pwm
->filename
, &password
, size
, which
);
888 if (!rc
&& new_password
)
889 rc
= pwmd_getpin (pwm
, pwm
->filename
, &newpass
, size
,
890 PWMD_PINENTRY_SAVE_CONFIRM
);
893 if (!rc
&& new_password
)
895 if ((!password
&& newpass
) || (!newpass
&& password
)
896 || (newpass
&& password
&& strcmp (newpass
, password
)))
898 if (pwm
->disable_pinentry
)
899 fprintf (stderr
, N_("Passphrases do not match.\n"));
901 pwmd_free (password
);
903 password
= newpass
= NULL
;
909 (void) pwmd_getpin (pwm
, pwm
->filename
, NULL
, NULL
, PWMD_PINENTRY_CLOSE
);
918 inquire_cb (void *data
, const char *keyword
)
920 pwm_t
*pwm
= (pwm_t
*) data
;
925 int new_password
= 0;
927 if (!strcmp (keyword
, "PASSPHRASE") || !strcmp (keyword
, "SIGN_PASSPHRASE"))
929 else if (!strcmp (keyword
, "NEW_PASSPHRASE") || !strcmp (keyword
, "GENKEY"))
932 /* Shouldn't get this far without a callback. */
933 if (!pwm
->override_inquire
&& !pwm
->inquire_func
934 && !is_password
&& !new_password
)
935 return gpg_error (GPG_ERR_ASS_NO_INQUIRE_CB
);
944 if (!pwm
->override_inquire
&& (is_password
|| new_password
))
947 rc
= pwmd_password (data
, keyword
, &result
, &len
);
952 rc
= pwm
->inquire_func (pwm
->inquire_data
, keyword
, rc
, &result
,
955 /* gpg will truncate a passphrase at the first nil byte which may be bad
956 * for generated key files. */
957 if ((!rc
|| gpg_err_code (rc
) == GPG_ERR_EOF
)
958 && (is_password
|| new_password
))
960 if (len
&& result
&& *result
)
962 for (size_t n
= 0; n
< len
; n
++)
964 if (result
[n
] == 0 && n
+1 != len
)
965 rc
= GPG_ERR_INV_PASSPHRASE
;
971 if (rc
&& gpg_err_code (rc
) != GPG_ERR_EOF
)
973 #ifndef LIBASSUAN_2_1_0
974 gpg_error_t trc
= rc
;
976 /* Cancel this inquire. */
977 rc
= assuan_send_data (pwm
->ctx
, NULL
, 1);
983 /* There is a bug (or feature?) in assuan_send_data() that
984 * when cancelling an inquire the next read from the server is
985 * not done until the next command making the next command
986 * fail with GPG_ERR_ASS_UNEXPECTED_CMD.
988 rc
= assuan_read_line (pwm
->ctx
, &line
, &len
);
990 /* Restore the original error. This differs from the error
991 * returned from the pwmd command (GPG_ERR_CANCELED). This
992 * error is returned to the calling function.
1001 if (gpg_err_code (rc
) == GPG_ERR_EOF
|| !rc
)
1003 if (len
<= 0 && !result
)
1008 else if ((len
<= 0 && result
) || (len
&& !result
))
1010 rc
= gpg_error (GPG_ERR_INV_ARG
);
1014 if (pwm
->inquire_maxlen
1015 && pwm
->inquire_sent
+ len
> pwm
->inquire_maxlen
)
1017 rc
= gpg_error (GPG_ERR_TOO_LARGE
);
1019 rc
= pwm
->inquire_func (pwm
->inquire_data
, keyword
, rc
,
1024 arc
= assuan_send_data (pwm
->ctx
, result
, len
);
1025 if (gpg_err_code (rc
) == GPG_ERR_EOF
)
1038 pwm
->inquire_sent
+= len
;
1040 if (pwm
->status_func
)
1042 char buf
[ASSUAN_LINELENGTH
];
1044 snprintf (buf
, sizeof (buf
), "XFER %zu %zu", pwm
->inquire_sent
,
1045 pwm
->inquire_total
);
1046 rc
= pwm
->status_func (pwm
->status_data
, buf
);
1060 parse_assuan_line (pwm_t
* pwm
)
1066 rc
= assuan_read_line (pwm
->ctx
, &line
, &len
);
1069 if (line
[0] == 'O' && line
[1] == 'K' &&
1070 (line
[2] == 0 || line
[2] == ' '))
1073 else if (line
[0] == '#')
1076 else if (line
[0] == 'S' && (line
[1] == 0 || line
[1] == ' '))
1078 if (pwm
->status_func
)
1080 rc
= pwm
->status_func (pwm
->status_data
,
1081 line
[1] == 0 ? line
+ 1 : line
+ 2);
1084 else if (line
[0] == 'E' && line
[1] == 'R' && line
[2] == 'R' &&
1085 (line
[3] == 0 || line
[3] == ' '))
1088 rc
= strtol (line
, NULL
, 10);
1096 reset_handle (pwm_t
*pwm
)
1100 pwm
->pinentry_disabled
= 0;
1101 #ifdef WITH_PINENTRY
1103 _pinentry_disconnect (pwm
);
1105 #if defined(WITH_SSH) || defined(WITH_GNUTLS)
1116 pwmd_disconnect (pwm_t
* pwm
)
1119 return FINISH (GPG_ERR_INV_ARG
);
1121 command_start (pwm
);
1124 return FINISH (GPG_ERR_INV_STATE
);
1131 /* Note that this should only be called when not in a command. */
1133 pwmd_process (pwm_t
* pwm
)
1137 struct timeval tv
= { 0, 0 };
1140 if (!pwm
|| pwm
->fd
== -1)
1141 return FINISH (GPG_ERR_INV_ARG
);
1143 return FINISH (GPG_ERR_INV_STATE
);
1146 FD_SET (pwm
->fd
, &fds
);
1147 n
= select (pwm
->fd
+ 1, &fds
, NULL
, NULL
, &tv
);
1150 return FINISH (gpg_error_from_syserror ());
1154 if (FD_ISSET (pwm
->fd
, &fds
))
1155 rc
= parse_assuan_line (pwm
);
1158 while (!rc
&& assuan_pending_line (pwm
->ctx
))
1159 rc
= parse_assuan_line (pwm
);
1161 #if defined (WITH_SSH) || defined (WITH_GNUTLS)
1162 if (gpg_err_code (rc
) == GPG_ERR_EOF
&& pwm
->tcp
)
1173 status_cb (void *data
, const char *line
)
1177 if (!strncmp (line
, "INQUIRE_MAXLEN ", 15))
1178 pwm
->inquire_maxlen
= strtol (line
+ 15, NULL
, 10);
1179 else if (!strncmp (line
, "PASSPHRASE_HINT ", 16))
1181 pwmd_free (pwm
->passphrase_hint
);
1182 pwm
->passphrase_hint
= pwmd_strdup (line
+16);
1184 else if (!strncmp (line
, "PASSPHRASE_INFO ", 16))
1186 pwmd_free (pwm
->passphrase_info
);
1187 pwm
->passphrase_info
= pwmd_strdup (line
+16);
1190 if (pwm
->status_func
)
1191 return pwm
->status_func (pwm
->status_data
, line
);
1197 _assuan_command (pwm_t
* pwm
, assuan_context_t ctx
,
1198 char **result
, size_t * len
, const char *cmd
)
1204 return FINISH (GPG_ERR_INV_ARG
);
1206 if (strlen (cmd
) >= ASSUAN_LINELENGTH
+ 1)
1207 return FINISH (GPG_ERR_LINE_TOO_LONG
);
1211 rc
= assuan_transact (ctx
, cmd
, inquire_realloc_cb
, &data
,
1213 pwm
->pctx
== ctx
? pwm
->_inquire_func
: inquire_cb
,
1214 pwm
->pctx
== ctx
? pwm
->_inquire_data
: pwm
,
1224 pwmd_free (data
.buf
);
1232 inquire_realloc_cb (&data
, "", 1);
1235 *result
= (char *) data
.buf
;
1237 pwmd_free (data
.buf
);
1244 pwm
->inquire_maxlen
= 0;
1249 pwmd_command_ap (pwm_t
* pwm
, char **result
, size_t * rlen
,
1250 pwmd_inquire_cb_t func
, void *user
, const char *cmd
,
1257 command_start (pwm
);
1266 return FINISH (GPG_ERR_INV_ARG
);
1268 return FINISH (GPG_ERR_INV_STATE
);
1271 * C99 allows the dst pointer to be null which will calculate the length
1272 * of the would-be result and return it.
1275 len
= vsnprintf (NULL
, 0, cmd
, ap
) + 1;
1276 buf
= (char *) pwmd_malloc (len
);
1280 return FINISH (GPG_ERR_ENOMEM
);
1283 len
= vsnprintf (buf
, len
, cmd
, ap2
);
1286 if (buf
[strlen (buf
) - 1] == '\n')
1287 buf
[strlen (buf
) - 1] = 0;
1288 if (buf
[strlen (buf
) - 1] == '\r')
1289 buf
[strlen (buf
) - 1] = 0;
1291 pwm
->inquire_func
= func
;
1292 pwm
->inquire_data
= user
;
1293 pwm
->inquire_sent
= 0;
1294 gpg_error_t rc
= _assuan_command (pwm
, pwm
->ctx
, result
, rlen
, buf
);
1300 pwmd_command (pwm_t
* pwm
, char **result
, size_t * len
,
1301 pwmd_inquire_cb_t func
, void *user
, const char *cmd
, ...)
1312 return FINISH (GPG_ERR_INV_ARG
);
1314 return FINISH (GPG_ERR_INV_STATE
);
1317 gpg_error_t rc
= pwmd_command_ap (pwm
, result
, len
, func
, user
, cmd
, ap
);
1323 send_pinentry_timeout (pwm_t
*pwm
)
1327 if ((pwm
->pinentry_timeout
>= 0
1328 && pwm
->pinentry_timeout
!= pwm
->current_pinentry_timeout
)
1329 || (pwm
->pinentry_timeout
== -1
1330 && pwm
->pinentry_timeout
!= pwm
->current_pinentry_timeout
))
1332 rc
= pwmd_command (pwm
, NULL
, NULL
, NULL
, NULL
,
1333 "OPTION pinentry-timeout=%i",
1334 pwm
->pinentry_timeout
);
1336 pwm
->current_pinentry_timeout
= pwm
->pinentry_timeout
;
1343 send_pinentry_options (pwm_t
* pwm
)
1347 rc
= pwmd_command (pwm
, NULL
, NULL
, NULL
, NULL
,
1348 "OPTION disable-pinentry=0");
1349 if (!rc
&& pwm
->pinentry_tty
)
1350 rc
= pwmd_command (pwm
, NULL
, NULL
, NULL
, NULL
, "OPTION TTYNAME=%s",
1353 if (!rc
&& pwm
->pinentry_term
)
1354 rc
= pwmd_command (pwm
, NULL
, NULL
, NULL
, NULL
, "OPTION TTYTYPE=%s",
1355 pwm
->pinentry_term
);
1357 if (!rc
&& pwm
->pinentry_display
)
1358 rc
= pwmd_command (pwm
, NULL
, NULL
, NULL
, NULL
, "OPTION DISPLAY=%s",
1359 pwm
->pinentry_display
);
1361 if (!rc
&& pwm
->pinentry_desc
)
1362 rc
= pwmd_command (pwm
, NULL
, NULL
, NULL
, NULL
, "OPTION DESC=%s",
1363 pwm
->pinentry_desc
);
1365 if (!rc
&& pwm
->pinentry_lcctype
)
1366 rc
= pwmd_command (pwm
, NULL
, NULL
, NULL
, NULL
, "OPTION LC_CTYPE=%s",
1367 pwm
->pinentry_lcctype
);
1369 if (!rc
&& pwm
->pinentry_lcmessages
)
1370 rc
= pwmd_command (pwm
, NULL
, NULL
, NULL
, NULL
, "OPTION LC_MESSAGES=%s",
1371 pwm
->pinentry_lcmessages
);
1374 rc
= send_pinentry_timeout (pwm
);
1380 pwmd_socket_type (pwm_t
* pwm
, pwmd_socket_t
* result
)
1382 if (!pwm
|| !result
)
1383 return FINISH (GPG_ERR_INV_ARG
);
1385 *result
= PWMD_SOCKET_LOCAL
;
1388 return FINISH (GPG_ERR_INV_STATE
);
1390 #if defined(WITH_SSH) || defined(WITH_GNUTLS)
1392 if (pwm
->tcp
&& pwm
->tcp
->ssh
)
1393 *result
= PWMD_SOCKET_SSH
;
1396 if (pwm
->tcp
&& pwm
->tcp
->tls
)
1397 *result
= PWMD_SOCKET_TLS
;
1404 disable_pinentry (pwm_t
*pwm
, int *disable
)
1407 #if defined(WITH_SSH) || defined(WITH_GNUTLS)
1408 int no_pinentry
= pwm
->disable_pinentry
|| pwm
->tcp
|| pwm
->local_pinentry
;
1410 int no_pinentry
= pwm
->disable_pinentry
|| pwm
->local_pinentry
;
1414 *disable
= no_pinentry
;
1416 if (pwm
->pinentry_disabled
&& no_pinentry
)
1418 else if (!pwm
->pinentry_disabled
&& !no_pinentry
)
1421 rc
= pwmd_command (pwm
, NULL
, NULL
, NULL
, NULL
, "OPTION disable-pinentry=%i",
1424 pwm
->pinentry_disabled
= no_pinentry
;
1430 pwmd_open (pwm_t
* pwm
, const char *filename
, pwmd_inquire_cb_t cb
,
1434 int no_pinentry
= 0;
1436 if (!pwm
|| !filename
|| !*filename
)
1437 return FINISH (GPG_ERR_INV_ARG
);
1440 return FINISH (GPG_ERR_INV_STATE
);
1442 command_start (pwm
);
1443 rc
= disable_pinentry (pwm
, &no_pinentry
);
1444 if (!rc
&& !no_pinentry
)
1445 rc
= send_pinentry_options (pwm
);
1449 pwm
->pinentry_try
= 0;
1450 pwmd_free (pwm
->filename
);
1451 pwm
->filename
= pwmd_strdup (filename
);
1455 rc
= pwmd_command (pwm
, NULL
, NULL
, cb
, data
, "OPEN %s%s",
1456 (pwm
->opts
& OPT_LOCK_ON_OPEN
) ? "--lock " : "",
1459 while (gpg_err_code (rc
) == GPG_ERR_BAD_PASSPHRASE
1460 && pwm
->pinentry_disabled
1461 && ++pwm
->pinentry_try
< pwm
->pinentry_tries
);
1463 pwm
->pinentry_try
= 0;
1467 pwmd_free (pwm
->filename
);
1468 pwm
->filename
= NULL
;
1472 pwmd_free (pwm
->passphrase_hint
);
1473 pwmd_free (pwm
->passphrase_info
);
1474 pwm
->passphrase_info
= pwm
->passphrase_hint
= NULL
;
1479 do_pwmd_save_passwd (pwm_t
* pwm
, const char *args
, pwmd_inquire_cb_t cb
,
1480 void *data
, int save
)
1485 return FINISH (GPG_ERR_INV_ARG
);
1487 return FINISH (GPG_ERR_INV_STATE
);
1489 command_start (pwm
);
1490 rc
= disable_pinentry (pwm
, NULL
);
1492 rc
= pwmd_command (pwm
, NULL
, NULL
, cb
, data
,
1493 save
? "SAVE %s" : "PASSWD %s", args
? args
: "");
1495 pwmd_free (pwm
->passphrase_hint
);
1496 pwmd_free (pwm
->passphrase_info
);
1497 pwm
->passphrase_info
= pwm
->passphrase_hint
= NULL
;
1502 pwmd_passwd (pwm_t
* pwm
, const char *args
, pwmd_inquire_cb_t cb
, void *data
)
1504 return do_pwmd_save_passwd (pwm
, args
, cb
, data
, 0);
1508 pwmd_save (pwm_t
* pwm
, const char *args
, pwmd_inquire_cb_t cb
, void *data
)
1510 return do_pwmd_save_passwd (pwm
, args
, cb
, data
, 1);
1514 pwmd_get_set_opt (pwm_t
*pwm
, pwmd_option_t opt
, int get
, va_list ap
)
1518 char *arg1
, **charpp
;
1522 return GPG_ERR_INV_ARG
;
1524 command_start (pwm
);
1527 case PWMD_OPTION_SERVER_VERSION
:
1529 return GPG_ERR_NOT_SUPPORTED
;
1532 rc
= GPG_ERR_INV_ARG
;
1534 rc
= GPG_ERR_INV_STATE
;
1537 unsigned *u
= va_arg (ap
, unsigned *);
1542 case PWMD_OPTION_SIGPIPE
:
1545 intp
= va_arg (ap
, int *);
1546 *intp
= pwm
->opts
& OPT_SIGPIPE
? 1 : 0;
1550 n
= va_arg (ap
, int);
1552 rc
= GPG_ERR_INV_VALUE
;
1555 pwm
->opts
|= OPT_SIGPIPE
;
1557 pwm
->opts
&= ~OPT_SIGPIPE
;
1560 case PWMD_OPTION_LOCK_ON_OPEN
:
1563 intp
= va_arg (ap
, int *);
1564 *intp
= pwm
->opts
& OPT_LOCK_ON_OPEN
? 1 : 0;
1568 n
= va_arg (ap
, int);
1571 rc
= GPG_ERR_INV_VALUE
;
1574 pwm
->opts
|= OPT_LOCK_ON_OPEN
;
1576 pwm
->opts
&= ~OPT_LOCK_ON_OPEN
;
1579 case PWMD_OPTION_INQUIRE_TOTAL
:
1582 sizetp
= va_arg (ap
, size_t *);
1583 *sizetp
= pwm
->inquire_total
;
1587 pwm
->inquire_total
= va_arg (ap
, size_t);
1589 case PWMD_OPTION_STATUS_CB
:
1592 pwmd_status_cb_t
*cb
= va_arg (ap
, pwmd_status_cb_t
*);
1594 *cb
= pwm
->status_func
;
1598 pwm
->status_func
= va_arg (ap
, pwmd_status_cb_t
);
1600 case PWMD_OPTION_STATUS_DATA
:
1603 void **data
= va_arg (ap
, void **);
1605 *data
= pwm
->status_data
;
1609 pwm
->status_data
= va_arg (ap
, void *);
1611 case PWMD_OPTION_NO_PINENTRY
:
1614 intp
= va_arg (ap
, int *);
1615 *intp
= pwm
->disable_pinentry
;
1619 n
= va_arg (ap
, int);
1622 rc
= GPG_ERR_INV_VALUE
;
1624 pwm
->disable_pinentry
= n
;
1626 case PWMD_OPTION_LOCAL_PINENTRY
:
1629 intp
= va_arg (ap
, int *);
1630 *intp
= pwm
->local_pinentry
;
1634 n
= va_arg (ap
, int);
1637 rc
= GPG_ERR_INV_VALUE
;
1639 pwm
->local_pinentry
= n
;
1642 case PWMD_OPTION_PINENTRY_TIMEOUT
:
1645 intp
= va_arg (ap
, int *);
1646 *intp
= pwm
->pinentry_timeout
;
1650 n
= va_arg (ap
, int);
1653 rc
= GPG_ERR_INV_VALUE
;
1655 pwm
->pinentry_timeout
= n
;
1657 case PWMD_OPTION_PINENTRY_TRIES
:
1660 intp
= va_arg (ap
, int *);
1661 *intp
= pwm
->pinentry_tries
;
1665 n
= va_arg (ap
, int);
1666 pwm
->pinentry_tries
= n
;
1668 case PWMD_OPTION_PINENTRY_PATH
:
1671 charpp
= va_arg (ap
, char **);
1672 *charpp
= pwm
->pinentry_path
;
1676 arg1
= va_arg (ap
, char *);
1677 pwmd_free (pwm
->pinentry_path
);
1678 pwm
->pinentry_path
= arg1
? _expand_homedir (arg1
, NULL
) : NULL
;
1680 case PWMD_OPTION_PINENTRY_TTY
:
1683 charpp
= va_arg (ap
, char **);
1684 *charpp
= pwm
->pinentry_tty
;
1688 arg1
= va_arg (ap
, char *);
1689 pwmd_free (pwm
->pinentry_tty
);
1690 pwm
->pinentry_tty
= arg1
? pwmd_strdup (arg1
) : NULL
;
1692 case PWMD_OPTION_PINENTRY_DISPLAY
:
1695 charpp
= va_arg (ap
, char **);
1696 *charpp
= pwm
->pinentry_display
;
1700 arg1
= va_arg (ap
, char *);
1701 pwmd_free (pwm
->pinentry_display
);
1702 pwm
->pinentry_display
= arg1
? pwmd_strdup (arg1
) : NULL
;
1704 case PWMD_OPTION_PINENTRY_TERM
:
1707 charpp
= va_arg (ap
, char **);
1708 *charpp
= pwm
->pinentry_term
;
1712 arg1
= va_arg (ap
, char *);
1713 pwmd_free (pwm
->pinentry_term
);
1714 pwm
->pinentry_term
= arg1
? pwmd_strdup (arg1
) : NULL
;
1716 case PWMD_OPTION_PINENTRY_ERROR
:
1719 charpp
= va_arg (ap
, char **);
1720 *charpp
= pwm
->pinentry_error
;
1724 arg1
= va_arg (ap
, char *);
1725 pwmd_free (pwm
->pinentry_error
);
1726 pwm
->pinentry_error
= arg1
? _percent_escape (arg1
) : NULL
;
1728 case PWMD_OPTION_PINENTRY_PROMPT
:
1731 charpp
= va_arg (ap
, char **);
1732 *charpp
= pwm
->pinentry_prompt
;
1736 arg1
= va_arg (ap
, char *);
1737 pwmd_free (pwm
->pinentry_prompt
);
1738 pwm
->pinentry_prompt
= arg1
? _percent_escape (arg1
) : NULL
;
1740 case PWMD_OPTION_PINENTRY_DESC
:
1743 charpp
= va_arg (ap
, char **);
1744 *charpp
= pwm
->pinentry_desc
;
1748 arg1
= va_arg (ap
, char *);
1749 pwmd_free (pwm
->pinentry_desc
);
1750 pwm
->pinentry_desc
= arg1
? _percent_escape (arg1
) : NULL
;
1752 case PWMD_OPTION_PINENTRY_LC_CTYPE
:
1755 charpp
= va_arg (ap
, char **);
1756 *charpp
= pwm
->pinentry_lcctype
;
1760 arg1
= va_arg (ap
, char *);
1761 pwmd_free (pwm
->pinentry_lcctype
);
1762 pwm
->pinentry_lcctype
= arg1
? pwmd_strdup (arg1
) : NULL
;
1764 case PWMD_OPTION_PINENTRY_LC_MESSAGES
:
1767 charpp
= va_arg (ap
, char **);
1768 *charpp
= pwm
->pinentry_lcmessages
;
1772 arg1
= va_arg (ap
, char *);
1773 pwmd_free (pwm
->pinentry_lcmessages
);
1774 pwm
->pinentry_lcmessages
= arg1
? pwmd_strdup (arg1
) : NULL
;
1776 case PWMD_OPTION_KNOWNHOST_CB
:
1779 pwmd_knownhost_cb_t
*cb
= va_arg (ap
, pwmd_knownhost_cb_t
*);
1785 pwm
->kh_cb
= va_arg (ap
, pwmd_knownhost_cb_t
);
1787 case PWMD_OPTION_KNOWNHOST_DATA
:
1790 void **data
= va_arg (ap
, void **);
1792 *data
= pwm
->kh_data
;
1796 pwm
->kh_data
= va_arg (ap
, void *);
1798 case PWMD_OPTION_SSH_AGENT
:
1801 intp
= va_arg (ap
, int *);
1802 *intp
= pwm
->use_agent
;
1806 pwm
->use_agent
= va_arg (ap
, int);
1808 if (pwm
->use_agent
< 0 || pwm
->use_agent
> 1)
1811 rc
= GPG_ERR_INV_VALUE
;
1814 case PWMD_OPTION_TLS_VERIFY
:
1817 intp
= va_arg (ap
, int *);
1818 *intp
= pwm
->tls_verify
;
1822 pwm
->tls_verify
= va_arg (ap
, int);
1824 if (pwm
->tls_verify
< 0 || pwm
->tls_verify
> 1)
1826 pwm
->tls_verify
= 0;
1827 rc
= GPG_ERR_INV_VALUE
;
1830 case PWMD_OPTION_SOCKET_TIMEOUT
:
1833 intp
= va_arg (ap
, int *);
1834 *intp
= pwm
->socket_timeout
;
1838 pwm
->socket_timeout
= va_arg (ap
, int);
1839 if (pwm
->socket_timeout
< 0)
1841 pwm
->socket_timeout
= 0;
1842 rc
= GPG_ERR_INV_VALUE
;
1846 if (pwm
->tcp
&& pwm
->tcp
->ssh
&& pwm
->tcp
->ssh
->session
)
1848 pwm
->tcp
->ssh
->timeout
= pwm
->socket_timeout
;
1849 libssh2_session_set_timeout (pwm
->tcp
->ssh
->session
,
1850 pwm
->socket_timeout
* 1000);
1854 if (pwm
->tcp
&& pwm
->tcp
->tls
&& pwm
->tcp
->tls
->session
)
1855 pwm
->tcp
->tls
->timeout
= pwm
->socket_timeout
;
1858 case PWMD_OPTION_OVERRIDE_INQUIRE
:
1861 intp
= va_arg (ap
, int *);
1862 *intp
= pwm
->override_inquire
;
1866 pwm
->override_inquire
= va_arg (ap
, int);
1868 if (pwm
->override_inquire
< 0 || pwm
->override_inquire
> 1)
1870 pwm
->override_inquire
= 0;
1871 rc
= GPG_ERR_INV_VALUE
;
1875 rc
= GPG_ERR_UNKNOWN_OPTION
;
1883 pwmd_setopt (pwm_t
* pwm
, pwmd_option_t opt
, ...)
1889 rc
= pwmd_get_set_opt (pwm
, opt
, 0, ap
);
1895 pwmd_getopt (pwm_t
*pwm
, pwmd_option_t opt
, ...)
1901 rc
= pwmd_get_set_opt (pwm
, opt
, 1, ap
);
1907 pwmd_new (const char *name
, pwm_t
** pwm
)
1909 pwm_t
*h
= pwmd_calloc (1, sizeof (pwm_t
));
1913 return FINISH (GPG_ERR_ENOMEM
);
1917 h
->name
= pwmd_strdup (name
);
1921 return FINISH (GPG_ERR_ENOMEM
);
1926 h
->pinentry_timeout
= -1;
1927 h
->current_pinentry_timeout
= -1;
1928 h
->pinentry_tries
= 3;
1929 #if defined(WITH_SSH) || defined(WITH_GNUTLS)
1930 h
->prot
= PWMD_IP_ANY
;
1933 if (ttyname (STDOUT_FILENO
))
1937 ttyname_r (STDOUT_FILENO
, buf
, sizeof (buf
));
1938 h
->pinentry_tty
= pwmd_strdup (buf
);
1939 if (!h
->pinentry_tty
)
1941 rc
= GPG_ERR_ENOMEM
;
1946 if (getenv ("TERM") && h
->pinentry_tty
)
1948 h
->pinentry_term
= pwmd_strdup (getenv ("TERM"));
1949 if (!h
->pinentry_term
)
1951 rc
= GPG_ERR_ENOMEM
;
1956 if (getenv ("DISPLAY"))
1958 h
->pinentry_display
= pwmd_strdup (getenv ("DISPLAY"));
1959 if (!h
->pinentry_display
)
1961 rc
= GPG_ERR_ENOMEM
;
1966 update_pinentry_settings (h
);
1976 pwmd_free (void *ptr
)
1982 pwmd_malloc (size_t size
)
1984 return _xmalloc (size
);
1988 pwmd_calloc (size_t nmemb
, size_t size
)
1990 return _xcalloc (nmemb
, size
);
1994 pwmd_realloc (void *ptr
, size_t size
)
1996 return _xrealloc (ptr
, size
);
2000 pwmd_strdup (const char *str
)
2007 t
= _xmalloc ((len
+ 1) * sizeof (char));
2011 for (c
= 0; c
< len
; c
++)
2019 pwmd_strdup_printf (const char *fmt
, ...)
2030 len
= vsnprintf (NULL
, 0, fmt
, ap
);
2032 buf
= pwmd_malloc (++len
);
2034 vsnprintf (buf
, len
, fmt
, ap2
);
2041 pwmd_getpin (pwm_t
* pwm
, const char *filename
, char **result
,
2042 size_t * len
, pwmd_pinentry_t which
)
2044 #ifndef WITH_PINENTRY
2045 return FINISH (GPG_ERR_NOT_IMPLEMENTED
);
2047 command_start (pwm
);
2048 gpg_error_t rc
= _pwmd_getpin (pwm
, filename
, result
, len
, which
);
2057 return LIBPWMD_VERSION_STR
;
2065 #ifdef WITH_PINENTRY
2066 n
|= PWMD_FEATURE_PINENTRY
;
2069 n
|= PWMD_FEATURE_SSH
;
2072 n
|= PWMD_FEATURE_CRACK
;
2075 n
|= PWMD_FEATURE_GNUTLS
;
2081 pwmd_fd (pwm_t
* pwm
, int *fd
)
2084 return FINISH (GPG_ERR_INV_ARG
);
2087 return FINISH (GPG_ERR_INV_STATE
);
2094 pwmd_set_pointer (pwm_t
*pwm
, void *data
)
2096 pwm
->user_data
= data
;
2100 pwmd_get_pointer (pwm_t
*pwm
)
2102 return pwm
->user_data
;
2106 pwmd_tls_error (pwm_t
*pwm
)
2111 return pwm
? pwm
->tls_error
: 0;
2116 pwmd_cancel (pwm_t
*pwm
)
2119 return FINISH (GPG_ERR_INV_ARG
);
2121 if (pwm
->fd
== -1 && !pwm
->tcp
)
2122 return FINISH (GPG_ERR_INV_STATE
);
2124 /* Can only cancel the connection for the time being. */
2126 return FINISH (GPG_ERR_INV_STATE
);