1 /* vim:tw=78:ts=8:sw=4:set ft=c: */
3 Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012
4 Ben Kibbey <bjk@luxsci.net>
6 This file is part of libpwmd.
8 Libpwmd is free software: you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation, either version 2 of the License, or
11 (at your option) any later version.
13 Libpwmd is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with Libpwmd. If not, see <http://www.gnu.org/licenses/>.
32 #include <sys/socket.h>
41 #include <sys/types.h>
43 #include <sys/select.h>
63 #if defined(WITH_SSH) || defined(WITH_GNUTLS)
64 #include <sys/types.h>
65 #include <sys/socket.h>
69 #define FINISH(rc) (gpg_err_source(rc) == GPG_ERR_SOURCE_UNKNOWN) \
77 ssize_t
hook_read(assuan_context_t ctx
, assuan_fd_t fd
, void *data
,
80 #if defined(WITH_SSH) || defined(WITH_GNUTLS)
81 pwm_t
*pwm
= assuan_get_pointer(ctx
);
84 if (pwm
&& pwm
->tcp
&& pwm
->tcp
->ssh
)
85 return read_hook_ssh(pwm
->tcp
->ssh
, fd
, data
, len
);
88 if (pwm
&& pwm
->tcp
&& pwm
->tcp
->tls
)
89 return read_hook_tls(pwm
->tcp
->tls
, fd
, data
, len
);
93 return read((int)fd
, data
, len
);
96 ssize_t
hook_write(assuan_context_t ctx
, assuan_fd_t fd
, const void *data
,
100 #if defined(WITH_SSH) || defined(WITH_GNUTLS)
101 pwm_t
*pwm
= assuan_get_pointer(ctx
);
104 if (pwm
&& pwm
->tcp
&& pwm
->tcp
->ssh
)
105 return write_hook_ssh(pwm
->tcp
->ssh
, fd
, data
, len
);
108 if (pwm
&& pwm
->tcp
&& pwm
->tcp
->tls
)
109 return write_hook_tls(pwm
->tcp
->tls
, fd
, data
, len
);
113 /* libassuan cannot handle EAGAIN when doing writes. */
115 wrote
= write((int)fd
, data
, len
);
117 if (wrote
== -1 && errno
== EAGAIN
) {
120 } while (wrote
== -1 && errno
== EAGAIN
);
125 pid_t
hook_waitpid(assuan_context_t ctx
, pid_t pid
, int action
, int *status
,
128 return waitpid(pid
, status
, options
);
131 gpg_error_t
pwmd_init()
133 static int initialized
;
142 bindtextdomain("libpwmd", LOCALEDIR
);
148 gnutls_global_init();
155 gpg_error_t
_connect_finalize(pwm_t
*pwm
)
159 int n
= assuan_get_active_fds(pwm
->ctx
, 0, active
, N_ARRAY(active
));
162 return GPG_ERR_EBADFD
;
166 pwm
->pinentry_pid
= -1;
170 rc
= pwmd_command(pwm
, NULL
, NULL
, NULL
, NULL
, "OPTION NAME=%s", pwm
->name
);
175 static gpg_error_t
connect_uds(pwm_t
*pwm
, const char *path
)
177 char *socketpath
= NULL
;
183 return GPG_ERR_INV_ARG
;
185 pwbuf
= _getpwuid(&pw
);
187 return gpg_error_from_syserror();
190 socketpath
= pwmd_strdup_printf("%s/.pwmd/socket", pw
.pw_dir
);
192 socketpath
= _expand_homedir((char *)path
, &pw
);
196 return GPG_ERR_ENOMEM
;
198 rc
= assuan_socket_connect(pwm
->ctx
, socketpath
, ASSUAN_INVALID_FD
, 0);
199 pwmd_free(socketpath
);
200 return rc
? rc
: _connect_finalize(pwm
);
203 static gpg_error_t
init_handle(pwm_t
*pwm
)
206 static struct assuan_malloc_hooks mhooks
= {
207 pwmd_malloc
, pwmd_realloc
, pwmd_free
209 static struct assuan_system_hooks shooks
= {
210 ASSUAN_SYSTEM_HOOKS_VERSION
,
218 NULL
, //sendmsg both are used for FD passing
226 rc
= assuan_new_ext(&pwm
->ctx
, GPG_ERR_SOURCE_DEFAULT
, &mhooks
, NULL
, NULL
);
230 assuan_set_pointer(pwm
->ctx
, pwm
);
231 assuan_ctx_set_system_hooks(pwm
->ctx
, &shooks
);
235 #if defined(WITH_SSH) || defined(WITH_GNUTLS)
236 void free_tcp(struct tcp_s
*tcp
)
242 _free_ssh_conn(tcp
->ssh
);
248 pwmd_free(tcp
->host
);
250 freeaddrinfo(tcp
->addrs
);
261 #if defined(WITH_SSH) || defined(WITH_GNUTLS)
262 gpg_error_t
tcp_connect_common(pwm_t
*pwm
)
264 struct addrinfo hints
= {0};
271 hints
.ai_family
= AF_UNSPEC
;
274 hints
.ai_family
= AF_INET
;
277 hints
.ai_family
= AF_INET6
;
281 hints
.ai_socktype
= SOCK_STREAM
;
282 snprintf(portstr
, sizeof(portstr
), "%i", pwm
->tcp
->port
);
283 n
= getaddrinfo(pwm
->tcp
->host
, portstr
, &hints
, &pwm
->tcp
->addrs
);
285 fprintf(stderr
, "%s\n", gai_strerror(n
));
286 return GPG_ERR_UNKNOWN_HOST
; //FIXME
289 for (pwm
->tcp
->addr
= pwm
->tcp
->addrs
; pwm
->tcp
->addr
;
290 pwm
->tcp
->addr
= pwm
->tcp
->addrs
->ai_next
) {
291 pwm
->tcp
->fd
= socket(pwm
->tcp
->addr
->ai_family
, SOCK_STREAM
, 0);
292 if (pwm
->tcp
->fd
== -1) {
293 rc
= gpg_error_from_syserror();
294 if (pwm
->tcp
->addr
== pwm
->tcp
->addrs
->ai_next
)
299 if (connect(pwm
->tcp
->fd
, pwm
->tcp
->addr
->ai_addr
,
300 pwm
->tcp
->addr
->ai_family
== AF_INET6
301 ? sizeof(struct sockaddr_in6
)
302 : sizeof(struct sockaddr
)) == -1) {
303 rc
= gpg_error_from_syserror();
306 if (pwm
->tcp
->addr
== pwm
->tcp
->addrs
->ai_next
)
319 gpg_error_t
pwmd_connect(pwm_t
*pwm
, const char *url
, ...)
325 return FINISH(GPG_ERR_INV_ARG
);
326 else if (!pwm
->ctx
) {
327 rc
= init_handle(pwm
);
332 rc
= GPG_ERR_UNSUPPORTED_PROTOCOL
;
335 rc
= connect_uds(pwm
, p
);
336 else if (!p
|| !strncmp(p
, "file://", 7)) {
339 rc
= connect_uds(pwm
, p
);
341 else if (!strncmp(p
, "ssh://", 6) || !strncmp(p
, "ssh6://", 7) ||
342 !strncmp(p
, "ssh4://", 7)) {
344 return FINISH(GPG_ERR_NOT_IMPLEMENTED
);
348 char *username
= NULL
;
350 if (!strncmp(p
, "ssh6://", 7)) {
351 pwm
->prot
= PWMD_IPV6
;
354 else if (!strncmp(p
, "ssh4://", 7)) {
355 pwm
->prot
= PWMD_IPV4
;
359 pwm
->prot
= PWMD_IP_ANY
;
363 /* X11 forwarding is not supported. */
364 pwmd_setopt(pwm
, PWMD_OPTION_NO_PINENTRY
, 1);
365 rc
= _parse_ssh_url(p
, &host
, &port
, &username
);
368 char *identity
= NULL
;
369 char *knownhosts
= NULL
;
372 identity
= va_arg(ap
, char *);
374 if (!identity
&& !pwm
->use_agent
)
375 rc
= GPG_ERR_INV_ARG
;
377 knownhosts
= va_arg(ap
, char *);
382 rc
= _do_ssh_connect(pwm
, host
, port
, identity
, username
,
385 rc
= _connect_finalize(pwm
);
398 else if (!strncmp(p
, "tls://", 6) || !strncmp(p
, "tls6://", 7) ||
399 !strncmp(p
, "tls4://", 7)) {
401 return FINISH(GPG_ERR_NOT_IMPLEMENTED
);
406 if (!strncmp(p
, "tls6://", 7)) {
407 pwm
->prot
= PWMD_IPV6
;
410 else if (!strncmp(p
, "tls4://", 7)) {
411 pwm
->prot
= PWMD_IPV4
;
415 pwm
->prot
= PWMD_IP_ANY
;
419 /* X11 forwarding is not supported. */
420 pwmd_setopt(pwm
, PWMD_OPTION_NO_PINENTRY
, 1);
421 rc
= _parse_tls_url(p
, &host
, &port
);
424 char *clientcert
= NULL
;
425 char *clientkey
= NULL
;
430 clientcert
= va_arg(ap
, char *);
433 rc
= GPG_ERR_INV_ARG
;
435 clientkey
= va_arg(ap
, char *);
437 rc
= GPG_ERR_INV_ARG
;
439 cacert
= va_arg(ap
, char *);
441 rc
= GPG_ERR_INV_ARG
;
443 prio
= va_arg(ap
, char *);
450 rc
= _do_tls_connect(pwm
, host
, port
, clientcert
, clientkey
,
451 cacert
, prio
, pwm
->tls_verify
);
453 rc
= _connect_finalize(pwm
);
469 static void disconnect(pwm_t
*pwm
)
475 assuan_release(pwm
->ctx
);
477 #if defined(WITH_SSH) || defined(WITH_GNUTLS)
485 void pwmd_close(pwm_t
*pwm
)
491 pwmd_free(pwm
->pinentry_error
);
492 pwmd_free(pwm
->pinentry_desc
);
493 pwmd_free(pwm
->pinentry_prompt
);
494 pwmd_free(pwm
->pinentry_tty
);
495 pwmd_free(pwm
->pinentry_display
);
496 pwmd_free(pwm
->pinentry_term
);
497 pwmd_free(pwm
->pinentry_lcctype
);
498 pwmd_free(pwm
->pinentry_lcmessages
);
499 pwmd_free(pwm
->filename
);
500 pwmd_free(pwm
->name
);
504 _pinentry_disconnect(pwm
);
510 static gpg_error_t
inquire_realloc_cb(void *data
, const void *buffer
,
513 membuf_t
*mem
= (membuf_t
*)data
;
519 if ((p
= pwmd_realloc(mem
->buf
, mem
->len
+ len
)) == NULL
)
520 return gpg_error(GPG_ERR_ENOMEM
);
523 memcpy((char *)mem
->buf
+ mem
->len
, buffer
, len
);
528 static gpg_error_t
get_password(pwm_t
*pwm
, char **result
, pwmd_pinentry_t w
,
531 char buf
[LINE_MAX
] = {0}, *p
;
532 struct termios told
, tnew
;
537 if (!isatty(STDIN_FILENO
)) {
538 fprintf(stderr
, N_("Input is not from a terminal! Failing.\n"));
539 return GPG_ERR_ENOTTY
;
543 if (tcgetattr(STDIN_FILENO
, &told
) == -1)
544 return gpg_error_from_syserror();
546 memcpy(&tnew
, &told
, sizeof(struct termios
));
547 tnew
.c_lflag
&= ~(ECHO
);
548 tnew
.c_lflag
|= ICANON
|ECHONL
;
550 if (tcsetattr(STDIN_FILENO
, TCSANOW
, &tnew
) == -1) {
553 tcsetattr(STDIN_FILENO
, TCSANOW
, &told
);
554 return gpg_error_from_errno(n
);
559 case PWMD_PINENTRY_OPEN
:
560 fprintf(stderr
, N_("Password for %s: "), pwm
->filename
);
562 case PWMD_PINENTRY_OPEN_FAILED
:
563 fprintf(stderr
, N_("Invalid password. Password for %s: "),
566 case PWMD_PINENTRY_SAVE
:
567 fprintf(stderr
, N_("New password for %s: "), pwm
->filename
);
569 case PWMD_PINENTRY_SAVE_CONFIRM
:
570 fprintf(stderr
, N_("Confirm password: "));
576 if ((p
= fgets(buf
, sizeof(buf
), stdin
)) == NULL
) {
577 tcsetattr(STDIN_FILENO
, TCSANOW
, &told
);
582 tcsetattr(STDIN_FILENO
, TCSANOW
, &told
);
586 return GPG_ERR_CANCELED
;
589 p
[strlen(p
) - 1] = 0;
592 key
= pwmd_strdup_printf("%s", p
);
593 memset(&buf
, 0, sizeof(buf
));
596 return GPG_ERR_ENOMEM
;
603 gpg_error_t
pwmd_password(pwm_t
*pwm
, const char *keyword
, char **data
,
607 int new_password
= 0;
609 char *password
= NULL
, *newpass
= NULL
;
612 if (!strcmp(keyword
, "NEW_PASSPHRASE"))
615 if (!new_password
&& pwm
->pinentry_try
)
619 if (pwm
->disable_pinentry
&& !pwm
->local_pinentry
) {
620 rc
= get_password(pwm
, &password
,
621 new_password
? PWMD_PINENTRY_SAVE
: PWMD_PINENTRY_OPEN
, 0);
622 if (!rc
&& new_password
)
623 rc
= get_password(pwm
, &newpass
, PWMD_PINENTRY_SAVE_CONFIRM
, 0);
626 pwmd_pinentry_t which
;
629 which
= new_password
? PWMD_PINENTRY_SAVE_FAILED
: PWMD_PINENTRY_OPEN_FAILED
;
631 which
= new_password
? PWMD_PINENTRY_SAVE
: PWMD_PINENTRY_OPEN
;
633 rc
= pwmd_getpin(pwm
, pwm
->filename
, &password
, &len
, which
);
634 if (!rc
&& new_password
)
635 rc
= pwmd_getpin(pwm
, pwm
->filename
, &newpass
, &len
,
636 PWMD_PINENTRY_SAVE_CONFIRM
);
639 if (!rc
&& new_password
) {
640 if ((!password
&& newpass
) || (!newpass
&& password
)
641 || strcmp(newpass
, password
)) {
642 if (pwm
->disable_pinentry
)
643 fprintf(stderr
, N_("Passphrases do not match.\n"));
647 password
= newpass
= NULL
;
653 (void)pwmd_getpin(pwm
, pwm
->filename
, NULL
, NULL
, PWMD_PINENTRY_CLOSE
);
656 // An empty passphrase on a protected key is not allowed by gpg-agent.
657 if (!password
&& !new_password
)
658 rc
= GPG_ERR_CANCELED
;
661 *size
= password
? strlen(password
) : 0;
668 static gpg_error_t
inquire_cb(void *data
, const char *keyword
)
670 pwm_t
*pwm
= (pwm_t
*)data
;
675 /* Shouldn't get this far without a callback. */
676 if (!pwm
->override_inquire
&& !pwm
->inquire_func
)
677 return gpg_error(GPG_ERR_ASS_NO_INQUIRE_CB
);
683 int new_password
= 0;
687 if (!strcmp(keyword
, "PASSPHRASE"))
689 else if (!strcmp(keyword
, "NEW_PASSPHRASE"))
692 if (!pwm
->override_inquire
&& (is_password
|| new_password
)) {
694 rc
= pwmd_password(data
, keyword
, &result
, &len
);
699 rc
= pwm
->inquire_func(pwm
->inquire_data
, keyword
, rc
, &result
,
703 if (rc
&& gpg_err_code(rc
) != GPG_ERR_EOF
) {
704 gpg_error_t trc
= rc
;
706 /* Cancel this inquire. */
707 rc
= assuan_send_data(pwm
->ctx
, NULL
, 1);
712 /* There is a bug (or feature?) in assuan_send_data() that
713 * when cancelling an inquire the next read from the server is
714 * not done until the next command making the next command
715 * fail with GPG_ERR_ASS_UNEXPECTED_CMD.
717 rc
= assuan_read_line(pwm
->ctx
, &line
, &len
);
719 /* Restore the original error. This differs from the error
720 * returned from the pwmd command (GPG_ERR_CANCELED). This
721 * error is returned to the calling function.
730 if (gpg_err_code(rc
) == GPG_ERR_EOF
|| !rc
) {
731 if (len
<= 0 && !result
) {
735 else if ((len
<= 0 && result
) || (len
&& !result
)) {
736 rc
= gpg_error(GPG_ERR_INV_ARG
);
740 if (pwm
->inquire_maxlen
741 && pwm
->inquire_sent
+len
> pwm
->inquire_maxlen
) {
742 rc
= gpg_error(GPG_ERR_TOO_LARGE
);
744 rc
= pwm
->inquire_func(pwm
->inquire_data
, keyword
, rc
,
749 arc
= assuan_send_data(pwm
->ctx
, result
, len
);
750 if (gpg_err_code(rc
) == GPG_ERR_EOF
) {
761 pwm
->inquire_sent
+= len
;
763 if (pwm
->status_func
) {
764 char buf
[ASSUAN_LINELENGTH
];
766 snprintf(buf
, sizeof(buf
), "XFER %lu %lu", pwm
->inquire_sent
,
768 rc
= pwm
->status_func(pwm
->status_data
, buf
);
781 static gpg_error_t
parse_assuan_line(pwm_t
*pwm
)
787 rc
= assuan_read_line(pwm
->ctx
, &line
, &len
);
789 if (line
[0] == 'O' && line
[1] == 'K' &&
790 (line
[2] == 0 || line
[2] == ' ')) {
792 else if (line
[0] == '#') {
794 else if (line
[0] == 'S' && (line
[1] == 0 || line
[1] == ' ')) {
795 if (pwm
->status_func
) {
796 rc
= pwm
->status_func(pwm
->status_data
,
797 line
[1] == 0 ? line
+1 : line
+2);
800 else if (line
[0] == 'E' && line
[1] == 'R' && line
[2] == 'R' &&
801 (line
[3] == 0 || line
[3] == ' ')) {
810 static void reset_handle_state(pwm_t
*pwm
, int done
)
812 #if defined(WITH_SSH) || defined(WITH_GNUTLS)
823 static void reset_handle(pwm_t
*h
)
828 _pinentry_disconnect(h
);
830 reset_handle_state(h
, 0);
833 gpg_error_t
pwmd_disconnect(pwm_t
*pwm
)
836 return FINISH(GPG_ERR_INV_ARG
);
838 #if defined(WITH_SSH) || defined(WITH_GNUTLS)
839 if (pwm
->fd
== -1 && pwm
->tcp
&& pwm
->tcp
->fd
== -1)
843 return FINISH(GPG_ERR_INV_STATE
);
852 /* Note that this should only be called when not in a command. */
853 gpg_error_t
pwmd_process(pwm_t
*pwm
)
857 struct timeval tv
= {0, 0};
861 return FINISH(GPG_ERR_INV_ARG
);
863 return FINISH(GPG_ERR_INV_STATE
);
865 #if defined(WITH_SSH)
866 if (pwm
->tcp
&& pwm
->tcp
->ssh
&& pwm
->keepalive_interval
) {
868 int n
= libssh2_keepalive_send(pwm
->tcp
->ssh
->session
, &to
);
871 return FINISH(GPG_ERR_ETIMEDOUT
);
873 if (pwm
->tcp
->ssh
->keepalive_prev
&&
874 to
> pwm
->tcp
->ssh
->keepalive_prev
) {
875 pwm
->tcp
->ssh
->keepalive_prev
= to
;
876 rc
= pwmd_command(pwm
, NULL
, NULL
, NULL
, NULL
, "NOP");
881 pwm
->tcp
->ssh
->keepalive_prev
= to
;
886 FD_SET(pwm
->fd
, &fds
);
887 n
= select(pwm
->fd
+1, &fds
, NULL
, NULL
, &tv
);
890 return FINISH(gpg_error_from_syserror());
893 if (FD_ISSET(pwm
->fd
, &fds
))
894 rc
= parse_assuan_line(pwm
);
897 while (!rc
&& assuan_pending_line(pwm
->ctx
))
898 rc
= parse_assuan_line(pwm
);
903 static gpg_error_t
status_cb(void *data
, const char *line
)
907 if (!strncmp(line
, "INQUIRE_MAXLEN ", 15))
908 pwm
->inquire_maxlen
= atoi(line
+15);
910 if (pwm
->status_func
)
911 return pwm
->status_func(pwm
->status_data
, line
);
916 gpg_error_t
_assuan_command(pwm_t
*pwm
, assuan_context_t ctx
,
917 char **result
, size_t *len
, const char *cmd
)
923 return FINISH(GPG_ERR_INV_ARG
);
925 if (strlen(cmd
) >= ASSUAN_LINELENGTH
+1)
926 return FINISH(GPG_ERR_LINE_TOO_LONG
);
930 rc
= assuan_transact(ctx
, cmd
, inquire_realloc_cb
, &data
,
932 pwm
->pctx
== ctx
? pwm
->_inquire_func
: inquire_cb
,
933 pwm
->pctx
== ctx
? pwm
->_inquire_data
: pwm
,
947 inquire_realloc_cb(&data
, "", 1);
950 *result
= (char *)data
.buf
;
959 pwm
->inquire_maxlen
= 0;
963 gpg_error_t
pwmd_command_ap(pwm_t
*pwm
, char **result
, size_t *rlen
,
964 pwmd_inquire_cb_t func
, void *user
, const char *cmd
, va_list ap
)
971 return FINISH(GPG_ERR_INV_ARG
);
973 return FINISH(GPG_ERR_INV_STATE
);
976 * C99 allows the dst pointer to be null which will calculate the length
977 * of the would-be result and return it.
980 len
= vsnprintf(NULL
, 0, cmd
, ap
)+1;
981 buf
= (char *)pwmd_malloc(len
);
984 return FINISH(GPG_ERR_ENOMEM
);
987 len
= vsnprintf(buf
, len
, cmd
, ap2
);
990 if (buf
[strlen(buf
)-1] == '\n')
991 buf
[strlen(buf
)-1] = 0;
992 if (buf
[strlen(buf
)-1] == '\r')
993 buf
[strlen(buf
)-1] = 0;
995 pwm
->inquire_func
= func
;
996 pwm
->inquire_data
= user
;
997 pwm
->inquire_sent
= 0;
998 gpg_error_t rc
= _assuan_command(pwm
, pwm
->ctx
, result
, rlen
, buf
);
1003 gpg_error_t
pwmd_command(pwm_t
*pwm
, char **result
, size_t *len
,
1004 pwmd_inquire_cb_t func
, void *user
, const char *cmd
, ...)
1009 return FINISH(GPG_ERR_INV_ARG
);
1011 return FINISH(GPG_ERR_INV_STATE
);
1017 gpg_error_t rc
= pwmd_command_ap(pwm
, result
, len
, func
, user
, cmd
, ap
);
1022 static gpg_error_t
send_pinentry_options(pwm_t
*pwm
)
1026 if (pwm
->pinentry_tty
) {
1027 rc
= pwmd_command(pwm
, NULL
, NULL
, NULL
, NULL
, "OPTION TTYNAME=%s", pwm
->pinentry_tty
);
1032 if (pwm
->pinentry_term
) {
1033 rc
= pwmd_command(pwm
, NULL
, NULL
, NULL
, NULL
, "OPTION TTYTYPE=%s", pwm
->pinentry_term
);
1038 if (pwm
->pinentry_display
) {
1039 rc
= pwmd_command(pwm
, NULL
, NULL
, NULL
, NULL
, "OPTION DISPLAY=%s",
1040 pwm
->pinentry_display
);
1045 if (pwm
->pinentry_desc
) {
1046 rc
= pwmd_command(pwm
, NULL
, NULL
, NULL
, NULL
, "OPTION DESC=%s",
1047 pwm
->pinentry_desc
);
1052 if (pwm
->pinentry_lcctype
) {
1053 rc
= pwmd_command(pwm
, NULL
, NULL
, NULL
, NULL
, "OPTION LC_CTYPE=%s",
1054 pwm
->pinentry_lcctype
);
1059 if (pwm
->pinentry_lcmessages
) {
1060 rc
= pwmd_command(pwm
, NULL
, NULL
, NULL
, NULL
, "OPTION LC_MESSAGES=%s",
1061 pwm
->pinentry_lcmessages
);
1069 gpg_error_t
pwmd_socket_type(pwm_t
*pwm
, pwmd_socket_t
*result
)
1071 if (!pwm
|| !result
)
1072 return FINISH(GPG_ERR_INV_ARG
);
1074 *result
= PWMD_SOCKET_LOCAL
;
1076 #if defined(WITH_SSH) || defined(WITH_GNUTLS)
1077 if ((pwm
->fd
== -1 && (!pwm
->tcp
1085 (pwm
->fd
== -1 && pwm
->tcp
&& pwm
->tcp
->fd
== -1))
1086 return FINISH(GPG_ERR_INV_STATE
);
1089 return FINISH(GPG_ERR_INV_STATE
);
1092 #if defined(WITH_SSH) || defined(WITH_GNUTLS)
1094 if (pwm
->tcp
&& pwm
->tcp
->ssh
)
1095 *result
= PWMD_SOCKET_SSH
;
1098 if (pwm
->tcp
&& pwm
->tcp
->tls
)
1099 *result
= PWMD_SOCKET_TLS
;
1105 gpg_error_t
pwmd_open(pwm_t
*pwm
, const char *filename
, pwmd_inquire_cb_t cb
,
1109 #if defined(WITH_SSH) || defined(WITH_GNUTLS)
1110 int no_pinentry
= pwm
->disable_pinentry
|| pwm
->tcp
|| pwm
->local_pinentry
;
1112 int no_pinentry
= pwm
->disable_pinentry
|| pwm
->local_pinentry
;
1115 if (!pwm
|| !filename
|| !*filename
)
1116 return FINISH(GPG_ERR_INV_ARG
);
1119 return FINISH(GPG_ERR_INV_STATE
);
1122 rc
= send_pinentry_options(pwm
);
1125 pwm
->pinentry_try
= 0;
1126 pwmd_free(pwm
->filename
);
1127 pwm
->filename
= pwmd_strdup(filename
);
1130 rc
= pwmd_command(pwm
, NULL
, NULL
, cb
, data
, "OPEN %s%s%s",
1131 (pwm
->opts
& OPT_LOCK_ON_OPEN
) ? "--lock " : "",
1132 no_pinentry
? "--no-pinentry " : "", filename
);
1133 } while (gpg_err_code(rc
) == GPG_ERR_BAD_PASSPHRASE
1134 && no_pinentry
&& ++pwm
->pinentry_try
< pwm
->pinentry_tries
);
1136 pwm
->pinentry_try
= 0;
1139 pwmd_free(pwm
->filename
);
1140 pwm
->filename
= NULL
;
1147 gpg_error_t
pwmd_save(pwm_t
*pwm
, const char *args
, pwmd_inquire_cb_t cb
,
1153 return FINISH(GPG_ERR_INV_ARG
);
1155 return FINISH(GPG_ERR_INV_STATE
);
1157 rc
= pwmd_command(pwm
, NULL
, NULL
, cb
, data
, "SAVE %s",
1162 gpg_error_t
pwmd_setopt(pwm_t
*pwm
, pwmd_option_t opt
, ...)
1170 return FINISH(GPG_ERR_INV_ARG
);
1175 case PWMD_OPTION_LOCK_ON_OPEN
:
1176 n
= va_arg(ap
, int);
1179 rc
= GPG_ERR_INV_VALUE
;
1182 pwm
->opts
|= OPT_LOCK_ON_OPEN
;
1184 pwm
->opts
&= ~OPT_LOCK_ON_OPEN
;
1187 case PWMD_OPTION_INQUIRE_TOTAL
:
1188 pwm
->inquire_total
= va_arg(ap
, size_t);
1190 case PWMD_OPTION_STATUS_CB
:
1191 pwm
->status_func
= va_arg(ap
, pwmd_status_cb_t
);
1193 case PWMD_OPTION_STATUS_DATA
:
1194 pwm
->status_data
= va_arg(ap
, void *);
1196 case PWMD_OPTION_NO_PINENTRY
:
1197 n
= va_arg(ap
, int);
1200 rc
= GPG_ERR_INV_VALUE
;
1202 pwm
->disable_pinentry
= n
;
1205 case PWMD_OPTION_LOCAL_PINENTRY
:
1206 n
= va_arg(ap
, int);
1209 rc
= GPG_ERR_INV_VALUE
;
1211 pwm
->local_pinentry
= n
;
1214 case PWMD_OPTION_PINENTRY_TIMEOUT
:
1215 n
= va_arg(ap
, int);
1218 rc
= GPG_ERR_INV_VALUE
;
1220 pwm
->pinentry_timeout
= n
;
1223 case PWMD_OPTION_PINENTRY_TRIES
:
1224 n
= va_arg(ap
, int);
1225 pwm
->pinentry_tries
= n
;
1227 case PWMD_OPTION_PINENTRY_PATH
:
1228 arg1
= va_arg(ap
, char *);
1229 pwmd_free(pwm
->pinentry_path
);
1230 pwm
->pinentry_path
= arg1
? _expand_homedir(arg1
, NULL
) : NULL
;
1232 case PWMD_OPTION_PINENTRY_TTY
:
1233 arg1
= va_arg(ap
, char *);
1234 pwmd_free(pwm
->pinentry_tty
);
1235 pwm
->pinentry_tty
= arg1
? pwmd_strdup(arg1
) : NULL
;
1237 case PWMD_OPTION_PINENTRY_DISPLAY
:
1238 arg1
= va_arg(ap
, char *);
1239 pwmd_free(pwm
->pinentry_display
);
1240 pwm
->pinentry_display
= arg1
? pwmd_strdup(arg1
) : NULL
;
1242 case PWMD_OPTION_PINENTRY_TERM
:
1243 arg1
= va_arg(ap
, char *);
1244 pwmd_free(pwm
->pinentry_term
);
1245 pwm
->pinentry_term
= arg1
? pwmd_strdup(arg1
) : NULL
;
1247 case PWMD_OPTION_PINENTRY_ERROR
:
1248 arg1
= va_arg(ap
, char *);
1249 pwmd_free(pwm
->pinentry_error
);
1250 pwm
->pinentry_error
= arg1
? _percent_escape(arg1
) : NULL
;
1252 case PWMD_OPTION_PINENTRY_PROMPT
:
1253 arg1
= va_arg(ap
, char *);
1254 pwmd_free(pwm
->pinentry_prompt
);
1255 pwm
->pinentry_prompt
= arg1
? _percent_escape(arg1
) : NULL
;
1257 case PWMD_OPTION_PINENTRY_DESC
:
1258 arg1
= va_arg(ap
, char *);
1259 pwmd_free(pwm
->pinentry_desc
);
1260 pwm
->pinentry_desc
= arg1
? _percent_escape(arg1
) : NULL
;
1262 case PWMD_OPTION_PINENTRY_LC_CTYPE
:
1263 arg1
= va_arg(ap
, char *);
1264 pwmd_free(pwm
->pinentry_lcctype
);
1265 pwm
->pinentry_lcctype
= arg1
? pwmd_strdup(arg1
) : NULL
;
1267 case PWMD_OPTION_PINENTRY_LC_MESSAGES
:
1268 arg1
= va_arg(ap
, char *);
1269 pwmd_free(pwm
->pinentry_lcmessages
);
1270 pwm
->pinentry_lcmessages
= arg1
? pwmd_strdup(arg1
) : NULL
;
1273 case PWMD_OPTION_KNOWNHOST_CB
:
1274 pwm
->kh_cb
= va_arg(ap
, pwmd_knownhost_cb_t
);
1276 case PWMD_OPTION_KNOWNHOST_DATA
:
1277 pwm
->kh_data
= va_arg(ap
, void *);
1279 case PWMD_OPTION_SSH_AGENT
:
1280 pwm
->use_agent
= va_arg(ap
, int);
1282 if (pwm
->use_agent
< 0 || pwm
->use_agent
> 1) {
1284 rc
= GPG_ERR_INV_VALUE
;
1288 case PWMD_OPTION_SSH_TIMEOUT
:
1289 pwm
->ssh_timeout
= va_arg(ap
, int);
1291 if (pwm
->ssh_timeout
< 0) {
1292 pwm
->ssh_timeout
= 0;
1293 rc
= GPG_ERR_INV_VALUE
;
1295 else if (pwm
->tcp
&& pwm
->tcp
->ssh
&& pwm
->tcp
->ssh
->session
)
1296 libssh2_session_set_timeout(pwm
->tcp
->ssh
->session
,
1297 pwm
->ssh_timeout
*1000);
1300 case PWMD_OPTION_SSH_KEEPALIVE
:
1301 pwm
->keepalive_interval
= va_arg(ap
, int);
1303 if (pwm
->keepalive_interval
< 0) {
1304 pwm
->keepalive_interval
= 0;
1305 rc
= GPG_ERR_INV_VALUE
;
1307 else if (pwm
->tcp
&& pwm
->tcp
->ssh
&& pwm
->tcp
->ssh
->session
)
1308 libssh2_keepalive_config(pwm
->tcp
->ssh
->session
, 1,
1309 pwm
->keepalive_interval
);
1313 case PWMD_OPTION_KNOWNHOST_CB
:
1314 case PWMD_OPTION_KNOWNHOST_DATA
:
1315 case PWMD_OPTION_SSH_AGENT
:
1316 case PWMD_OPTION_SSH_TIMEOUT
:
1317 rc
= GPG_ERR_NOT_IMPLEMENTED
;
1321 case PWMD_OPTION_TLS_VERIFY
:
1322 pwm
->tls_verify
= va_arg(ap
, int);
1324 if (pwm
->tls_verify
< 0 || pwm
->tls_verify
> 1) {
1325 pwm
->tls_verify
= 0;
1326 rc
= GPG_ERR_INV_VALUE
;
1330 case PWMD_OPTION_OVERRIDE_INQUIRE
:
1331 pwm
->override_inquire
= va_arg(ap
, int);
1333 if (pwm
->override_inquire
< 0 || pwm
->override_inquire
> 1) {
1334 pwm
->override_inquire
= 0;
1335 rc
= GPG_ERR_INV_VALUE
;
1339 rc
= GPG_ERR_UNKNOWN_OPTION
;
1347 gpg_error_t
pwmd_new(const char *name
, pwm_t
**pwm
)
1349 pwm_t
*h
= pwmd_calloc(1, sizeof(pwm_t
));
1353 return FINISH(GPG_ERR_ENOMEM
);
1356 h
->name
= pwmd_strdup(name
);
1359 return FINISH(GPG_ERR_ENOMEM
);
1364 h
->pinentry_timeout
= -30;
1365 h
->pinentry_tries
= 3;
1366 #if defined(WITH_SSH) || defined(WITH_GNUTLS)
1367 h
->prot
= PWMD_IP_ANY
;
1370 if (ttyname(STDOUT_FILENO
)) {
1373 ttyname_r(STDOUT_FILENO
, buf
, sizeof(buf
));
1374 h
->pinentry_tty
= pwmd_strdup(buf
);
1375 if (!h
->pinentry_tty
) {
1376 rc
= GPG_ERR_ENOMEM
;
1381 if (getenv("TERM") && h
->pinentry_tty
) {
1382 h
->pinentry_term
= pwmd_strdup(getenv("TERM"));
1383 if (!h
->pinentry_term
) {
1384 rc
= GPG_ERR_ENOMEM
;
1389 if (getenv("DISPLAY")) {
1390 h
->pinentry_display
= pwmd_strdup(getenv("DISPLAY"));
1391 if (!h
->pinentry_display
) {
1392 rc
= GPG_ERR_ENOMEM
;
1397 update_pinentry_settings(h
);
1406 void pwmd_free(void *ptr
)
1411 void *pwmd_malloc(size_t size
)
1413 return _xmalloc(size
);
1416 void *pwmd_calloc(size_t nmemb
, size_t size
)
1418 return _xcalloc(nmemb
, size
);
1421 void *pwmd_realloc(void *ptr
, size_t size
)
1423 return _xrealloc(ptr
, size
);
1426 char *pwmd_strdup(const char *str
)
1428 return _xstrdup(str
);
1431 char *pwmd_strdup_printf(const char *fmt
, ...)
1442 len
= vsnprintf(NULL
, 0, fmt
, ap
);
1444 buf
= pwmd_malloc(++len
);
1446 vsnprintf(buf
, len
, fmt
, ap2
);
1452 gpg_error_t
pwmd_getpin(pwm_t
*pwm
, const char *filename
, char **result
,
1453 size_t *len
, pwmd_pinentry_t which
)
1455 #ifndef WITH_PINENTRY
1456 return FINISH(GPG_ERR_NOT_IMPLEMENTED
);
1458 gpg_error_t rc
= _pwmd_getpin(pwm
, filename
, result
, len
, which
);
1464 const char *pwmd_version()
1466 return LIBPWMD_VERSION_STR
;
1469 unsigned int pwmd_features()
1473 #ifdef WITH_PINENTRY
1474 n
|= PWMD_FEATURE_PINENTRY
;
1477 n
|= PWMD_FEATURE_SSH
;
1480 n
|= PWMD_FEATURE_CRACK
;
1483 n
|= PWMD_FEATURE_GNUTLS
;
1488 gpg_error_t
pwmd_fd(pwm_t
*pwm
, int *fd
)
1491 return FINISH(GPG_ERR_INV_ARG
);
1493 #if defined(WITH_SSH) || defined(WITH_GNUTLS)
1494 if (pwm
->tcp
&& pwm
->tcp
->fd
== -1 && pwm
->fd
== -1)
1495 return GPG_ERR_INV_STATE
;
1497 *fd
= pwm
->tcp
&& pwm
->tcp
->fd
!= -1 ? pwm
->tcp
->fd
: pwm
->fd
;
1500 return FINISH(GPG_ERR_INV_STATE
);