2003 lines
49 KiB
C
2003 lines
49 KiB
C
/* engine-gpgsm.c - GpgSM engine.
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Copyright (C) 2000 Werner Koch (dd9jn)
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Copyright (C) 2001, 2002, 2003, 2004, 2005, 2007, 2009 g10 Code GmbH
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This file is part of GPGME.
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GPGME is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of
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the License, or (at your option) any later version.
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GPGME is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA. */
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#if HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <assert.h>
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#include <unistd.h>
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#include <locale.h>
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#include <fcntl.h> /* FIXME */
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#include <errno.h>
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#include "gpgme.h"
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#include "util.h"
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#include "ops.h"
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#include "wait.h"
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#include "priv-io.h"
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#include "sema.h"
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#include "assuan.h"
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#include "status-table.h"
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#include "debug.h"
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#include "engine-backend.h"
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typedef struct
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{
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int fd; /* FD we talk about. */
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int server_fd;/* Server FD for this connection. */
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int dir; /* Inbound/Outbound, maybe given implicit? */
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void *data; /* Handler-specific data. */
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void *tag; /* ID from the user for gpgme_remove_io_callback. */
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char server_fd_str[15]; /* Same as SERVER_FD but as a string. We
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need this because _gpgme_io_fd2str can't
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be used on a closed descriptor. */
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} iocb_data_t;
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struct engine_gpgsm
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{
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assuan_context_t assuan_ctx;
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int lc_ctype_set;
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int lc_messages_set;
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iocb_data_t status_cb;
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/* Input, output etc are from the servers perspective. */
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iocb_data_t input_cb;
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iocb_data_t output_cb;
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iocb_data_t message_cb;
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struct
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{
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engine_status_handler_t fnc;
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void *fnc_value;
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} status;
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struct
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{
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engine_colon_line_handler_t fnc;
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void *fnc_value;
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struct
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{
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char *line;
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int linesize;
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int linelen;
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} attic;
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int any; /* any data line seen */
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} colon;
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gpgme_data_t inline_data; /* Used to collect D lines. */
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struct gpgme_io_cbs io_cbs;
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};
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typedef struct engine_gpgsm *engine_gpgsm_t;
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static void gpgsm_io_event (void *engine,
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gpgme_event_io_t type, void *type_data);
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static char *
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gpgsm_get_version (const char *file_name)
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{
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return _gpgme_get_program_version (file_name ? file_name
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: _gpgme_get_gpgsm_path ());
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}
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static const char *
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gpgsm_get_req_version (void)
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{
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return NEED_GPGSM_VERSION;
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}
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static void
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close_notify_handler (int fd, void *opaque)
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{
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engine_gpgsm_t gpgsm = opaque;
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assert (fd != -1);
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if (gpgsm->status_cb.fd == fd)
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{
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if (gpgsm->status_cb.tag)
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(*gpgsm->io_cbs.remove) (gpgsm->status_cb.tag);
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gpgsm->status_cb.fd = -1;
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gpgsm->status_cb.tag = NULL;
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}
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else if (gpgsm->input_cb.fd == fd)
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{
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if (gpgsm->input_cb.tag)
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(*gpgsm->io_cbs.remove) (gpgsm->input_cb.tag);
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gpgsm->input_cb.fd = -1;
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gpgsm->input_cb.tag = NULL;
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}
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else if (gpgsm->output_cb.fd == fd)
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{
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if (gpgsm->output_cb.tag)
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(*gpgsm->io_cbs.remove) (gpgsm->output_cb.tag);
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gpgsm->output_cb.fd = -1;
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gpgsm->output_cb.tag = NULL;
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}
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else if (gpgsm->message_cb.fd == fd)
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{
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if (gpgsm->message_cb.tag)
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(*gpgsm->io_cbs.remove) (gpgsm->message_cb.tag);
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gpgsm->message_cb.fd = -1;
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gpgsm->message_cb.tag = NULL;
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}
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}
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static gpgme_error_t
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map_assuan_error (gpg_error_t err)
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{
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if (!err)
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return 0;
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if (err == -1)
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return gpg_error (GPG_ERR_INV_ENGINE);
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/* New code will use gpg_error_t values. */
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if (gpg_err_source (err))
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return (gpgme_error_t) err;
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/* Legacy code will use old values. */
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switch (err)
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{
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case ASSUAN_No_Error:
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return gpg_error (GPG_ERR_NO_ERROR);
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case ASSUAN_General_Error:
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return gpg_error (GPG_ERR_GENERAL);
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case ASSUAN_Out_Of_Core:
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return gpg_error (GPG_ERR_ENOMEM);
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case ASSUAN_Invalid_Value:
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return gpg_error (GPG_ERR_INV_VALUE);
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case ASSUAN_Timeout:
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return gpg_error (GPG_ERR_ETIMEDOUT);
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case ASSUAN_Read_Error:
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return gpg_error (GPG_ERR_GENERAL);
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case ASSUAN_Write_Error:
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return gpg_error (GPG_ERR_GENERAL);
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case ASSUAN_Problem_Starting_Server:
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case ASSUAN_Not_A_Server:
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case ASSUAN_Not_A_Client:
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case ASSUAN_Nested_Commands:
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case ASSUAN_No_Data_Callback:
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case ASSUAN_No_Inquire_Callback:
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case ASSUAN_Connect_Failed:
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case ASSUAN_Accept_Failed:
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case ASSUAN_Invalid_Command:
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case ASSUAN_Unknown_Command:
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case ASSUAN_Syntax_Error:
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case ASSUAN_Parameter_Error:
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case ASSUAN_Parameter_Conflict:
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case ASSUAN_No_Input:
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case ASSUAN_No_Output:
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case ASSUAN_No_Data_Available:
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case ASSUAN_Too_Much_Data:
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case ASSUAN_Inquire_Unknown:
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case ASSUAN_Inquire_Error:
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case ASSUAN_Invalid_Option:
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case ASSUAN_Unexpected_Status:
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case ASSUAN_Unexpected_Data:
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case ASSUAN_Invalid_Status:
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return gpg_error (GPG_ERR_ASSUAN);
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case ASSUAN_Invalid_Response:
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return gpg_error (GPG_ERR_INV_RESPONSE);
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case ASSUAN_Not_Implemented:
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return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
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case ASSUAN_Line_Too_Long:
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return gpg_error (GPG_ERR_LINE_TOO_LONG);
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case ASSUAN_Line_Not_Terminated:
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return gpg_error (GPG_ERR_INCOMPLETE_LINE);
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case ASSUAN_Canceled:
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return gpg_error (GPG_ERR_CANCELED);
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case ASSUAN_Unsupported_Algorithm:
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return gpg_error (GPG_ERR_UNSUPPORTED_ALGORITHM);
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case ASSUAN_Server_Resource_Problem:
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return gpg_error (GPG_ERR_RESOURCE_LIMIT);
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case ASSUAN_Server_IO_Error:
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return gpg_error (GPG_ERR_GENERAL);
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case ASSUAN_Server_Bug:
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return gpg_error (GPG_ERR_BUG);
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case ASSUAN_Invalid_Data:
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return gpg_error (GPG_ERR_INV_DATA);
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case ASSUAN_Invalid_Index:
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return gpg_error (GPG_ERR_INV_INDEX);
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case ASSUAN_Not_Confirmed:
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return gpg_error (GPG_ERR_NOT_CONFIRMED);
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case ASSUAN_Bad_Certificate:
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return gpg_error (GPG_ERR_BAD_CERT);
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case ASSUAN_Bad_Certificate_Chain:
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return gpg_error (GPG_ERR_BAD_CERT_CHAIN);
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case ASSUAN_Missing_Certificate:
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return gpg_error (GPG_ERR_MISSING_CERT);
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case ASSUAN_Bad_Signature:
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return gpg_error (GPG_ERR_BAD_SIGNATURE);
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case ASSUAN_No_Agent:
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return gpg_error (GPG_ERR_NO_AGENT);
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case ASSUAN_Agent_Error:
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return gpg_error (GPG_ERR_AGENT);
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case ASSUAN_No_Public_Key:
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return gpg_error (GPG_ERR_NO_PUBKEY);
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case ASSUAN_No_Secret_Key:
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return gpg_error (GPG_ERR_NO_SECKEY);
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case ASSUAN_Invalid_Name:
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return gpg_error (GPG_ERR_INV_NAME);
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case ASSUAN_Cert_Revoked:
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return gpg_error (GPG_ERR_CERT_REVOKED);
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case ASSUAN_No_CRL_For_Cert:
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return gpg_error (GPG_ERR_NO_CRL_KNOWN);
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case ASSUAN_CRL_Too_Old:
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return gpg_error (GPG_ERR_CRL_TOO_OLD);
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case ASSUAN_Not_Trusted:
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return gpg_error (GPG_ERR_NOT_TRUSTED);
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case ASSUAN_Card_Error:
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return gpg_error (GPG_ERR_CARD);
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case ASSUAN_Invalid_Card:
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return gpg_error (GPG_ERR_INV_CARD);
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case ASSUAN_No_PKCS15_App:
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return gpg_error (GPG_ERR_NO_PKCS15_APP);
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case ASSUAN_Card_Not_Present:
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return gpg_error (GPG_ERR_CARD_NOT_PRESENT);
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case ASSUAN_Invalid_Id:
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return gpg_error (GPG_ERR_INV_ID);
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default:
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return gpg_error (GPG_ERR_GENERAL);
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}
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}
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/* This is the default inquiry callback. We use it to handle the
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Pinentry notifications. */
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static gpgme_error_t
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default_inq_cb (engine_gpgsm_t gpgsm, const char *line)
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{
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if (!strncmp (line, "PINENTRY_LAUNCHED", 17) && (line[17]==' '||!line[17]))
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{
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_gpgme_allow_set_foreground_window ((pid_t)strtoul (line+17, NULL, 10));
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}
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return 0;
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}
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static gpgme_error_t
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gpgsm_cancel (void *engine)
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{
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engine_gpgsm_t gpgsm = engine;
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if (!gpgsm)
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return gpg_error (GPG_ERR_INV_VALUE);
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if (gpgsm->status_cb.fd != -1)
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_gpgme_io_close (gpgsm->status_cb.fd);
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if (gpgsm->input_cb.fd != -1)
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_gpgme_io_close (gpgsm->input_cb.fd);
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if (gpgsm->output_cb.fd != -1)
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_gpgme_io_close (gpgsm->output_cb.fd);
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if (gpgsm->message_cb.fd != -1)
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_gpgme_io_close (gpgsm->message_cb.fd);
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if (gpgsm->assuan_ctx)
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{
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assuan_disconnect (gpgsm->assuan_ctx);
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gpgsm->assuan_ctx = NULL;
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}
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return 0;
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}
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static void
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gpgsm_release (void *engine)
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{
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engine_gpgsm_t gpgsm = engine;
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if (!gpgsm)
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return;
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gpgsm_cancel (engine);
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free (gpgsm->colon.attic.line);
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free (gpgsm);
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}
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static gpgme_error_t
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gpgsm_new (void **engine, const char *file_name, const char *home_dir)
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{
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gpgme_error_t err = 0;
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engine_gpgsm_t gpgsm;
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const char *argv[5];
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int argc;
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#if !USE_DESCRIPTOR_PASSING
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int fds[2];
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int child_fds[4];
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#endif
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char *dft_display = NULL;
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char dft_ttyname[64];
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char *dft_ttytype = NULL;
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char *optstr;
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gpgsm = calloc (1, sizeof *gpgsm);
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if (!gpgsm)
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return gpg_error_from_errno (errno);
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gpgsm->status_cb.fd = -1;
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gpgsm->status_cb.dir = 1;
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gpgsm->status_cb.tag = 0;
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gpgsm->status_cb.data = gpgsm;
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gpgsm->input_cb.fd = -1;
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gpgsm->input_cb.dir = 0;
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gpgsm->input_cb.tag = 0;
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gpgsm->input_cb.server_fd = -1;
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*gpgsm->input_cb.server_fd_str = 0;
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gpgsm->output_cb.fd = -1;
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gpgsm->output_cb.dir = 1;
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gpgsm->output_cb.tag = 0;
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gpgsm->output_cb.server_fd = -1;
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*gpgsm->output_cb.server_fd_str = 0;
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gpgsm->message_cb.fd = -1;
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gpgsm->message_cb.dir = 0;
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gpgsm->message_cb.tag = 0;
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gpgsm->message_cb.server_fd = -1;
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*gpgsm->message_cb.server_fd_str = 0;
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gpgsm->status.fnc = 0;
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gpgsm->colon.fnc = 0;
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gpgsm->colon.attic.line = 0;
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gpgsm->colon.attic.linesize = 0;
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gpgsm->colon.attic.linelen = 0;
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gpgsm->colon.any = 0;
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gpgsm->inline_data = NULL;
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gpgsm->io_cbs.add = NULL;
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gpgsm->io_cbs.add_priv = NULL;
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gpgsm->io_cbs.remove = NULL;
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gpgsm->io_cbs.event = NULL;
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gpgsm->io_cbs.event_priv = NULL;
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#if !USE_DESCRIPTOR_PASSING
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if (_gpgme_io_pipe (fds, 0) < 0)
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{
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err = gpg_error_from_errno (errno);
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goto leave;
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}
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gpgsm->input_cb.fd = fds[1];
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gpgsm->input_cb.server_fd = fds[0];
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if (_gpgme_io_pipe (fds, 1) < 0)
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{
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err = gpg_error_from_errno (errno);
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goto leave;
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}
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gpgsm->output_cb.fd = fds[0];
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gpgsm->output_cb.server_fd = fds[1];
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if (_gpgme_io_pipe (fds, 0) < 0)
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{
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err = gpg_error_from_errno (errno);
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goto leave;
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}
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gpgsm->message_cb.fd = fds[1];
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gpgsm->message_cb.server_fd = fds[0];
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child_fds[0] = gpgsm->input_cb.server_fd;
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child_fds[1] = gpgsm->output_cb.server_fd;
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child_fds[2] = gpgsm->message_cb.server_fd;
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child_fds[3] = -1;
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#endif
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argc = 0;
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argv[argc++] = "gpgsm";
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if (home_dir)
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{
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argv[argc++] = "--homedir";
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argv[argc++] = home_dir;
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}
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argv[argc++] = "--server";
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argv[argc++] = NULL;
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#if USE_DESCRIPTOR_PASSING
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err = assuan_pipe_connect_ext
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(&gpgsm->assuan_ctx, file_name ? file_name : _gpgme_get_gpgsm_path (),
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argv, NULL, NULL, NULL, 1);
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#else
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err = assuan_pipe_connect
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(&gpgsm->assuan_ctx, file_name ? file_name : _gpgme_get_gpgsm_path (),
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argv, child_fds);
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/* On Windows, handles are inserted in the spawned process with
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DuplicateHandle, and child_fds contains the server-local names
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for the inserted handles when assuan_pipe_connect returns. */
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if (!err)
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{
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/* Note: We don't use _gpgme_io_fd2str here. On W32 the
|
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returned handles are real W32 system handles, not whatever
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GPGME uses internally (which may be a system handle, a C
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library handle or a GLib/Qt channel. Confusing, yes, but
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remember these are server-local names, so they are not part
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of GPGME at all. */
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snprintf (gpgsm->input_cb.server_fd_str,
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sizeof gpgsm->input_cb.server_fd_str, "%d", child_fds[0]);
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snprintf (gpgsm->output_cb.server_fd_str,
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sizeof gpgsm->output_cb.server_fd_str, "%d", child_fds[1]);
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snprintf (gpgsm->message_cb.server_fd_str,
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sizeof gpgsm->message_cb.server_fd_str, "%d", child_fds[2]);
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}
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#endif
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if (err)
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goto leave;
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|
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/* assuan_pipe_connect in this case uses _gpgme_io_spawn which
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closes the child fds for us. */
|
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gpgsm->input_cb.server_fd = -1;
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gpgsm->output_cb.server_fd = -1;
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gpgsm->message_cb.server_fd = -1;
|
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err = _gpgme_getenv ("DISPLAY", &dft_display);
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if (err)
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goto leave;
|
||
if (dft_display)
|
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{
|
||
if (asprintf (&optstr, "OPTION display=%s", dft_display) < 0)
|
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{
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free (dft_display);
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err = gpg_error_from_errno (errno);
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||
goto leave;
|
||
}
|
||
free (dft_display);
|
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|
||
err = assuan_transact (gpgsm->assuan_ctx, optstr, NULL, NULL, NULL,
|
||
NULL, NULL, NULL);
|
||
free (optstr);
|
||
if (err)
|
||
{
|
||
err = map_assuan_error (err);
|
||
goto leave;
|
||
}
|
||
}
|
||
|
||
if (isatty (1))
|
||
{
|
||
int rc;
|
||
|
||
rc = ttyname_r (1, dft_ttyname, sizeof (dft_ttyname));
|
||
if (rc)
|
||
{
|
||
err = gpg_error_from_errno (rc);
|
||
goto leave;
|
||
}
|
||
else
|
||
{
|
||
if (asprintf (&optstr, "OPTION ttyname=%s", dft_ttyname) < 0)
|
||
{
|
||
err = gpg_error_from_errno (errno);
|
||
goto leave;
|
||
}
|
||
err = assuan_transact (gpgsm->assuan_ctx, optstr, NULL, NULL, NULL,
|
||
NULL, NULL, NULL);
|
||
free (optstr);
|
||
if (err)
|
||
{
|
||
err = map_assuan_error (err);
|
||
goto leave;
|
||
}
|
||
|
||
err = _gpgme_getenv ("TERM", &dft_ttytype);
|
||
if (err)
|
||
goto leave;
|
||
if (dft_ttytype)
|
||
{
|
||
if (asprintf (&optstr, "OPTION ttytype=%s", dft_ttytype) < 0)
|
||
{
|
||
free (dft_ttytype);
|
||
err = gpg_error_from_errno (errno);
|
||
goto leave;
|
||
}
|
||
free (dft_ttytype);
|
||
|
||
err = assuan_transact (gpgsm->assuan_ctx, optstr, NULL, NULL,
|
||
NULL, NULL, NULL, NULL);
|
||
free (optstr);
|
||
if (err)
|
||
{
|
||
err = map_assuan_error (err);
|
||
goto leave;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
/* Ask gpgsm to enable the audit log support. */
|
||
if (!err)
|
||
{
|
||
err = assuan_transact (gpgsm->assuan_ctx, "OPTION enable-audit-log=1",
|
||
NULL, NULL, NULL, NULL, NULL, NULL);
|
||
if (gpg_err_code (err) == GPG_ERR_UNKNOWN_OPTION)
|
||
err = 0; /* This is an optional feature of gpgsm. */
|
||
}
|
||
|
||
|
||
#ifdef HAVE_W32_SYSTEM
|
||
/* Under Windows we need to use AllowSetForegroundWindow. Tell
|
||
gpgsm to tell us when it needs it. */
|
||
if (!err)
|
||
{
|
||
err = assuan_transact (gpgsm->assuan_ctx, "OPTION allow-pinentry-notify",
|
||
NULL, NULL, NULL, NULL, NULL, NULL);
|
||
if (gpg_err_code (err) == GPG_ERR_UNKNOWN_OPTION)
|
||
err = 0; /* This is a new feature of gpgsm. */
|
||
}
|
||
#endif /*HAVE_W32_SYSTEM*/
|
||
|
||
#if !USE_DESCRIPTOR_PASSING
|
||
if (!err
|
||
&& (_gpgme_io_set_close_notify (gpgsm->input_cb.fd,
|
||
close_notify_handler, gpgsm)
|
||
|| _gpgme_io_set_close_notify (gpgsm->output_cb.fd,
|
||
close_notify_handler, gpgsm)
|
||
|| _gpgme_io_set_close_notify (gpgsm->message_cb.fd,
|
||
close_notify_handler, gpgsm)))
|
||
{
|
||
err = gpg_error (GPG_ERR_GENERAL);
|
||
goto leave;
|
||
}
|
||
#endif
|
||
|
||
leave:
|
||
/* Close the server ends of the pipes (because of this, we must use
|
||
the stored server_fd_str in the function start). Our ends are
|
||
closed in gpgsm_release(). */
|
||
#if !USE_DESCRIPTOR_PASSING
|
||
if (gpgsm->input_cb.server_fd != -1)
|
||
_gpgme_io_close (gpgsm->input_cb.server_fd);
|
||
if (gpgsm->output_cb.server_fd != -1)
|
||
_gpgme_io_close (gpgsm->output_cb.server_fd);
|
||
if (gpgsm->message_cb.server_fd != -1)
|
||
_gpgme_io_close (gpgsm->message_cb.server_fd);
|
||
#endif
|
||
|
||
if (err)
|
||
gpgsm_release (gpgsm);
|
||
else
|
||
*engine = gpgsm;
|
||
|
||
return err;
|
||
}
|
||
|
||
|
||
static gpgme_error_t
|
||
gpgsm_set_locale (void *engine, int category, const char *value)
|
||
{
|
||
engine_gpgsm_t gpgsm = engine;
|
||
gpgme_error_t err;
|
||
char *optstr;
|
||
char *catstr;
|
||
|
||
/* FIXME: If value is NULL, we need to reset the option to default.
|
||
But we can't do this. So we error out here. GPGSM needs support
|
||
for this. */
|
||
if (category == LC_CTYPE)
|
||
{
|
||
catstr = "lc-ctype";
|
||
if (!value && gpgsm->lc_ctype_set)
|
||
return gpg_error (GPG_ERR_INV_VALUE);
|
||
if (value)
|
||
gpgsm->lc_ctype_set = 1;
|
||
}
|
||
#ifdef LC_MESSAGES
|
||
else if (category == LC_MESSAGES)
|
||
{
|
||
catstr = "lc-messages";
|
||
if (!value && gpgsm->lc_messages_set)
|
||
return gpg_error (GPG_ERR_INV_VALUE);
|
||
if (value)
|
||
gpgsm->lc_messages_set = 1;
|
||
}
|
||
#endif /* LC_MESSAGES */
|
||
else
|
||
return gpg_error (GPG_ERR_INV_VALUE);
|
||
|
||
/* FIXME: Reset value to default. */
|
||
if (!value)
|
||
return 0;
|
||
|
||
if (asprintf (&optstr, "OPTION %s=%s", catstr, value) < 0)
|
||
err = gpg_error_from_errno (errno);
|
||
else
|
||
{
|
||
err = assuan_transact (gpgsm->assuan_ctx, optstr, NULL, NULL,
|
||
NULL, NULL, NULL, NULL);
|
||
free (optstr);
|
||
if (err)
|
||
err = map_assuan_error (err);
|
||
}
|
||
|
||
return err;
|
||
}
|
||
|
||
|
||
/* Forward declaration. */
|
||
static gpgme_status_code_t parse_status (const char *name);
|
||
|
||
static gpgme_error_t
|
||
gpgsm_assuan_simple_command (assuan_context_t ctx, char *cmd,
|
||
engine_status_handler_t status_fnc,
|
||
void *status_fnc_value)
|
||
{
|
||
gpg_error_t err;
|
||
char *line;
|
||
size_t linelen;
|
||
|
||
err = assuan_write_line (ctx, cmd);
|
||
if (err)
|
||
return map_assuan_error (err);
|
||
|
||
do
|
||
{
|
||
err = assuan_read_line (ctx, &line, &linelen);
|
||
if (err)
|
||
return map_assuan_error (err);
|
||
|
||
if (*line == '#' || !linelen)
|
||
continue;
|
||
|
||
if (linelen >= 2
|
||
&& line[0] == 'O' && line[1] == 'K'
|
||
&& (line[2] == '\0' || line[2] == ' '))
|
||
return 0;
|
||
else if (linelen >= 4
|
||
&& line[0] == 'E' && line[1] == 'R' && line[2] == 'R'
|
||
&& line[3] == ' ')
|
||
err = map_assuan_error (atoi (&line[4]));
|
||
else if (linelen >= 2
|
||
&& line[0] == 'S' && line[1] == ' ')
|
||
{
|
||
char *rest;
|
||
gpgme_status_code_t r;
|
||
|
||
rest = strchr (line + 2, ' ');
|
||
if (!rest)
|
||
rest = line + linelen; /* set to an empty string */
|
||
else
|
||
*(rest++) = 0;
|
||
|
||
r = parse_status (line + 2);
|
||
|
||
if (r >= 0 && status_fnc)
|
||
err = status_fnc (status_fnc_value, r, rest);
|
||
else
|
||
err = gpg_error (GPG_ERR_GENERAL);
|
||
}
|
||
else
|
||
err = gpg_error (GPG_ERR_GENERAL);
|
||
}
|
||
while (!err);
|
||
|
||
return err;
|
||
}
|
||
|
||
|
||
typedef enum { INPUT_FD, OUTPUT_FD, MESSAGE_FD } fd_type_t;
|
||
|
||
static void
|
||
gpgsm_clear_fd (engine_gpgsm_t gpgsm, fd_type_t fd_type)
|
||
{
|
||
#if !USE_DESCRIPTOR_PASSING
|
||
switch (fd_type)
|
||
{
|
||
case INPUT_FD:
|
||
_gpgme_io_close (gpgsm->input_cb.fd);
|
||
break;
|
||
case OUTPUT_FD:
|
||
_gpgme_io_close (gpgsm->output_cb.fd);
|
||
break;
|
||
case MESSAGE_FD:
|
||
_gpgme_io_close (gpgsm->message_cb.fd);
|
||
break;
|
||
}
|
||
#endif
|
||
}
|
||
|
||
#define COMMANDLINELEN 40
|
||
static gpgme_error_t
|
||
gpgsm_set_fd (engine_gpgsm_t gpgsm, fd_type_t fd_type, const char *opt)
|
||
{
|
||
gpg_error_t err = 0;
|
||
char line[COMMANDLINELEN];
|
||
char *which;
|
||
iocb_data_t *iocb_data;
|
||
int dir;
|
||
|
||
switch (fd_type)
|
||
{
|
||
case INPUT_FD:
|
||
which = "INPUT";
|
||
iocb_data = &gpgsm->input_cb;
|
||
break;
|
||
|
||
case OUTPUT_FD:
|
||
which = "OUTPUT";
|
||
iocb_data = &gpgsm->output_cb;
|
||
break;
|
||
|
||
case MESSAGE_FD:
|
||
which = "MESSAGE";
|
||
iocb_data = &gpgsm->message_cb;
|
||
break;
|
||
|
||
default:
|
||
return gpg_error (GPG_ERR_INV_VALUE);
|
||
}
|
||
|
||
dir = iocb_data->dir;
|
||
|
||
#if USE_DESCRIPTOR_PASSING
|
||
/* We try to short-cut the communication by giving GPGSM direct
|
||
access to the file descriptor, rather than using a pipe. */
|
||
iocb_data->server_fd = _gpgme_data_get_fd (iocb_data->data);
|
||
if (iocb_data->server_fd < 0)
|
||
{
|
||
int fds[2];
|
||
|
||
if (_gpgme_io_pipe (fds, 0) < 0)
|
||
return gpg_error_from_errno (errno);
|
||
|
||
iocb_data->fd = dir ? fds[0] : fds[1];
|
||
iocb_data->server_fd = dir ? fds[1] : fds[0];
|
||
|
||
if (_gpgme_io_set_close_notify (iocb_data->fd,
|
||
close_notify_handler, gpgsm))
|
||
{
|
||
err = gpg_error (GPG_ERR_GENERAL);
|
||
goto leave_set_fd;
|
||
}
|
||
}
|
||
|
||
err = assuan_sendfd (gpgsm->assuan_ctx, iocb_data->server_fd);
|
||
if (err)
|
||
goto leave_set_fd;
|
||
|
||
_gpgme_io_close (iocb_data->server_fd);
|
||
iocb_data->server_fd = -1;
|
||
|
||
if (opt)
|
||
snprintf (line, COMMANDLINELEN, "%s FD %s", which, opt);
|
||
else
|
||
snprintf (line, COMMANDLINELEN, "%s FD", which);
|
||
#else
|
||
if (opt)
|
||
snprintf (line, COMMANDLINELEN, "%s FD=%s %s",
|
||
which, iocb_data->server_fd_str, opt);
|
||
else
|
||
snprintf (line, COMMANDLINELEN, "%s FD=%s",
|
||
which, iocb_data->server_fd_str);
|
||
#endif
|
||
|
||
err = gpgsm_assuan_simple_command (gpgsm->assuan_ctx, line, NULL, NULL);
|
||
|
||
#if USE_DESCRIPTOR_PASSING
|
||
leave_set_fd:
|
||
if (err)
|
||
{
|
||
_gpgme_io_close (iocb_data->fd);
|
||
iocb_data->fd = -1;
|
||
if (iocb_data->server_fd != -1)
|
||
{
|
||
_gpgme_io_close (iocb_data->server_fd);
|
||
iocb_data->server_fd = -1;
|
||
}
|
||
}
|
||
#endif
|
||
|
||
return err;
|
||
}
|
||
|
||
|
||
static const char *
|
||
map_data_enc (gpgme_data_t d)
|
||
{
|
||
switch (gpgme_data_get_encoding (d))
|
||
{
|
||
case GPGME_DATA_ENCODING_NONE:
|
||
break;
|
||
case GPGME_DATA_ENCODING_BINARY:
|
||
return "--binary";
|
||
case GPGME_DATA_ENCODING_BASE64:
|
||
return "--base64";
|
||
case GPGME_DATA_ENCODING_ARMOR:
|
||
return "--armor";
|
||
default:
|
||
break;
|
||
}
|
||
return NULL;
|
||
}
|
||
|
||
|
||
static int
|
||
status_cmp (const void *ap, const void *bp)
|
||
{
|
||
const struct status_table_s *a = ap;
|
||
const struct status_table_s *b = bp;
|
||
|
||
return strcmp (a->name, b->name);
|
||
}
|
||
|
||
|
||
static gpgme_status_code_t
|
||
parse_status (const char *name)
|
||
{
|
||
struct status_table_s t, *r;
|
||
t.name = name;
|
||
r = bsearch (&t, status_table, DIM(status_table) - 1,
|
||
sizeof t, status_cmp);
|
||
return r ? r->code : -1;
|
||
}
|
||
|
||
|
||
static gpgme_error_t
|
||
status_handler (void *opaque, int fd)
|
||
{
|
||
gpg_error_t assuan_err;
|
||
gpgme_error_t err = 0;
|
||
engine_gpgsm_t gpgsm = opaque;
|
||
char *line;
|
||
size_t linelen;
|
||
|
||
do
|
||
{
|
||
assuan_err = assuan_read_line (gpgsm->assuan_ctx, &line, &linelen);
|
||
if (assuan_err)
|
||
{
|
||
/* Try our best to terminate the connection friendly. */
|
||
/* assuan_write_line (gpgsm->assuan_ctx, "BYE"); */
|
||
err = map_assuan_error (assuan_err);
|
||
TRACE3 (DEBUG_CTX, "gpgme:status_handler", gpgsm,
|
||
"fd 0x%x: error from assuan (%d) getting status line : %s",
|
||
fd, assuan_err, gpg_strerror (err));
|
||
}
|
||
else if (linelen >= 3
|
||
&& line[0] == 'E' && line[1] == 'R' && line[2] == 'R'
|
||
&& (line[3] == '\0' || line[3] == ' '))
|
||
{
|
||
if (line[3] == ' ')
|
||
err = map_assuan_error (atoi (&line[4]));
|
||
else
|
||
err = gpg_error (GPG_ERR_GENERAL);
|
||
TRACE2 (DEBUG_CTX, "gpgme:status_handler", gpgsm,
|
||
"fd 0x%x: ERR line - mapped to: %s",
|
||
fd, err ? gpg_strerror (err) : "ok");
|
||
/* Try our best to terminate the connection friendly. */
|
||
/* assuan_write_line (gpgsm->assuan_ctx, "BYE"); */
|
||
}
|
||
else if (linelen >= 2
|
||
&& line[0] == 'O' && line[1] == 'K'
|
||
&& (line[2] == '\0' || line[2] == ' '))
|
||
{
|
||
if (gpgsm->status.fnc)
|
||
err = gpgsm->status.fnc (gpgsm->status.fnc_value,
|
||
GPGME_STATUS_EOF, "");
|
||
|
||
if (!err && gpgsm->colon.fnc && gpgsm->colon.any )
|
||
{
|
||
/* We must tell a colon function about the EOF. We do
|
||
this only when we have seen any data lines. Note
|
||
that this inlined use of colon data lines will
|
||
eventually be changed into using a regular data
|
||
channel. */
|
||
gpgsm->colon.any = 0;
|
||
err = gpgsm->colon.fnc (gpgsm->colon.fnc_value, NULL);
|
||
}
|
||
TRACE2 (DEBUG_CTX, "gpgme:status_handler", gpgsm,
|
||
"fd 0x%x: OK line - final status: %s",
|
||
fd, err ? gpg_strerror (err) : "ok");
|
||
_gpgme_io_close (gpgsm->status_cb.fd);
|
||
return err;
|
||
}
|
||
else if (linelen > 2
|
||
&& line[0] == 'D' && line[1] == ' '
|
||
&& gpgsm->colon.fnc)
|
||
{
|
||
/* We are using the colon handler even for plain inline data
|
||
- strange name for that function but for historic reasons
|
||
we keep it. */
|
||
/* FIXME We can't use this for binary data because we
|
||
assume this is a string. For the current usage of colon
|
||
output it is correct. */
|
||
char *src = line + 2;
|
||
char *end = line + linelen;
|
||
char *dst;
|
||
char **aline = &gpgsm->colon.attic.line;
|
||
int *alinelen = &gpgsm->colon.attic.linelen;
|
||
|
||
if (gpgsm->colon.attic.linesize < *alinelen + linelen + 1)
|
||
{
|
||
char *newline = realloc (*aline, *alinelen + linelen + 1);
|
||
if (!newline)
|
||
err = gpg_error_from_errno (errno);
|
||
else
|
||
{
|
||
*aline = newline;
|
||
gpgsm->colon.attic.linesize += linelen + 1;
|
||
}
|
||
}
|
||
if (!err)
|
||
{
|
||
dst = *aline + *alinelen;
|
||
|
||
while (!err && src < end)
|
||
{
|
||
if (*src == '%' && src + 2 < end)
|
||
{
|
||
/* Handle escaped characters. */
|
||
++src;
|
||
*dst = _gpgme_hextobyte (src);
|
||
(*alinelen)++;
|
||
src += 2;
|
||
}
|
||
else
|
||
{
|
||
*dst = *src++;
|
||
(*alinelen)++;
|
||
}
|
||
|
||
if (*dst == '\n')
|
||
{
|
||
/* Terminate the pending line, pass it to the colon
|
||
handler and reset it. */
|
||
|
||
gpgsm->colon.any = 1;
|
||
if (*alinelen > 1 && *(dst - 1) == '\r')
|
||
dst--;
|
||
*dst = '\0';
|
||
|
||
/* FIXME How should we handle the return code? */
|
||
err = gpgsm->colon.fnc (gpgsm->colon.fnc_value, *aline);
|
||
if (!err)
|
||
{
|
||
dst = *aline;
|
||
*alinelen = 0;
|
||
}
|
||
}
|
||
else
|
||
dst++;
|
||
}
|
||
}
|
||
TRACE2 (DEBUG_CTX, "gpgme:status_handler", gpgsm,
|
||
"fd 0x%x: D line; final status: %s",
|
||
fd, err? gpg_strerror (err):"ok");
|
||
}
|
||
else if (linelen > 2
|
||
&& line[0] == 'D' && line[1] == ' '
|
||
&& gpgsm->inline_data)
|
||
{
|
||
char *src = line + 2;
|
||
char *end = line + linelen;
|
||
char *dst = src;
|
||
ssize_t nwritten;
|
||
|
||
linelen = 0;
|
||
while (src < end)
|
||
{
|
||
if (*src == '%' && src + 2 < end)
|
||
{
|
||
/* Handle escaped characters. */
|
||
++src;
|
||
*dst++ = _gpgme_hextobyte (src);
|
||
src += 2;
|
||
}
|
||
else
|
||
*dst++ = *src++;
|
||
|
||
linelen++;
|
||
}
|
||
|
||
src = line + 2;
|
||
while (linelen > 0)
|
||
{
|
||
nwritten = gpgme_data_write (gpgsm->inline_data, src, linelen);
|
||
if (!nwritten || (nwritten < 0 && errno != EINTR)
|
||
|| nwritten > linelen)
|
||
{
|
||
err = gpg_error_from_errno (errno);
|
||
break;
|
||
}
|
||
src += nwritten;
|
||
linelen -= nwritten;
|
||
}
|
||
|
||
TRACE2 (DEBUG_CTX, "gpgme:status_handler", gpgsm,
|
||
"fd 0x%x: D inlinedata; final status: %s",
|
||
fd, err? gpg_strerror (err):"ok");
|
||
}
|
||
else if (linelen > 2
|
||
&& line[0] == 'S' && line[1] == ' ')
|
||
{
|
||
char *rest;
|
||
gpgme_status_code_t r;
|
||
|
||
rest = strchr (line + 2, ' ');
|
||
if (!rest)
|
||
rest = line + linelen; /* set to an empty string */
|
||
else
|
||
*(rest++) = 0;
|
||
|
||
r = parse_status (line + 2);
|
||
|
||
if (r >= 0)
|
||
{
|
||
if (gpgsm->status.fnc)
|
||
err = gpgsm->status.fnc (gpgsm->status.fnc_value, r, rest);
|
||
}
|
||
else
|
||
fprintf (stderr, "[UNKNOWN STATUS]%s %s", line + 2, rest);
|
||
TRACE3 (DEBUG_CTX, "gpgme:status_handler", gpgsm,
|
||
"fd 0x%x: S line (%s) - final status: %s",
|
||
fd, line+2, err? gpg_strerror (err):"ok");
|
||
}
|
||
else if (linelen >= 7
|
||
&& line[0] == 'I' && line[1] == 'N' && line[2] == 'Q'
|
||
&& line[3] == 'U' && line[4] == 'I' && line[5] == 'R'
|
||
&& line[6] == 'E'
|
||
&& (line[7] == '\0' || line[7] == ' '))
|
||
{
|
||
char *keyword = line+7;
|
||
|
||
while (*keyword == ' ')
|
||
keyword++;;
|
||
default_inq_cb (gpgsm, keyword);
|
||
assuan_write_line (gpgsm->assuan_ctx, "END");
|
||
}
|
||
|
||
}
|
||
while (!err && assuan_pending_line (gpgsm->assuan_ctx));
|
||
|
||
return err;
|
||
}
|
||
|
||
|
||
static gpgme_error_t
|
||
add_io_cb (engine_gpgsm_t gpgsm, iocb_data_t *iocbd, gpgme_io_cb_t handler)
|
||
{
|
||
gpgme_error_t err;
|
||
|
||
TRACE_BEG2 (DEBUG_ENGINE, "engine-gpgsm:add_io_cb", gpgsm,
|
||
"fd %d, dir %d", iocbd->fd, iocbd->dir);
|
||
err = (*gpgsm->io_cbs.add) (gpgsm->io_cbs.add_priv,
|
||
iocbd->fd, iocbd->dir,
|
||
handler, iocbd->data, &iocbd->tag);
|
||
if (err)
|
||
return TRACE_ERR (err);
|
||
if (!iocbd->dir)
|
||
/* FIXME Kludge around poll() problem. */
|
||
err = _gpgme_io_set_nonblocking (iocbd->fd);
|
||
return TRACE_ERR (err);
|
||
}
|
||
|
||
|
||
static gpgme_error_t
|
||
start (engine_gpgsm_t gpgsm, const char *command)
|
||
{
|
||
gpgme_error_t err;
|
||
int fdlist[5];
|
||
int nfds;
|
||
|
||
/* We need to know the fd used by assuan for reads. We do this by
|
||
using the assumption that the first returned fd from
|
||
assuan_get_active_fds() is always this one. */
|
||
nfds = assuan_get_active_fds (gpgsm->assuan_ctx, 0 /* read fds */,
|
||
fdlist, DIM (fdlist));
|
||
if (nfds < 1)
|
||
return gpg_error (GPG_ERR_GENERAL); /* FIXME */
|
||
|
||
/* We "duplicate" the file descriptor, so we can close it here (we
|
||
can't close fdlist[0], as that is closed by libassuan, and
|
||
closing it here might cause libassuan to close some unrelated FD
|
||
later). Alternatively, we could special case status_fd and
|
||
register/unregister it manually as needed, but this increases
|
||
code duplication and is more complicated as we can not use the
|
||
close notifications etc. A third alternative would be to let
|
||
Assuan know that we closed the FD, but that complicates the
|
||
Assuan interface. */
|
||
|
||
gpgsm->status_cb.fd = _gpgme_io_dup (fdlist[0]);
|
||
if (gpgsm->status_cb.fd < 0)
|
||
return gpg_error_from_syserror ();
|
||
|
||
if (_gpgme_io_set_close_notify (gpgsm->status_cb.fd,
|
||
close_notify_handler, gpgsm))
|
||
{
|
||
_gpgme_io_close (gpgsm->status_cb.fd);
|
||
gpgsm->status_cb.fd = -1;
|
||
return gpg_error (GPG_ERR_GENERAL);
|
||
}
|
||
|
||
err = add_io_cb (gpgsm, &gpgsm->status_cb, status_handler);
|
||
if (!err && gpgsm->input_cb.fd != -1)
|
||
err = add_io_cb (gpgsm, &gpgsm->input_cb, _gpgme_data_outbound_handler);
|
||
if (!err && gpgsm->output_cb.fd != -1)
|
||
err = add_io_cb (gpgsm, &gpgsm->output_cb, _gpgme_data_inbound_handler);
|
||
if (!err && gpgsm->message_cb.fd != -1)
|
||
err = add_io_cb (gpgsm, &gpgsm->message_cb, _gpgme_data_outbound_handler);
|
||
|
||
if (!err)
|
||
err = map_assuan_error (assuan_write_line (gpgsm->assuan_ctx, command));
|
||
|
||
if (!err)
|
||
gpgsm_io_event (gpgsm, GPGME_EVENT_START, NULL);
|
||
|
||
return err;
|
||
}
|
||
|
||
|
||
#if USE_DESCRIPTOR_PASSING
|
||
static gpgme_error_t
|
||
gpgsm_reset (void *engine)
|
||
{
|
||
engine_gpgsm_t gpgsm = engine;
|
||
|
||
/* We must send a reset because we need to reset the list of
|
||
signers. Note that RESET does not reset OPTION commands. */
|
||
return gpgsm_assuan_simple_command (gpgsm->assuan_ctx, "RESET", NULL, NULL);
|
||
}
|
||
#endif
|
||
|
||
|
||
static gpgme_error_t
|
||
gpgsm_decrypt (void *engine, gpgme_data_t ciph, gpgme_data_t plain)
|
||
{
|
||
engine_gpgsm_t gpgsm = engine;
|
||
gpgme_error_t err;
|
||
|
||
if (!gpgsm)
|
||
return gpg_error (GPG_ERR_INV_VALUE);
|
||
|
||
gpgsm->input_cb.data = ciph;
|
||
err = gpgsm_set_fd (gpgsm, INPUT_FD, map_data_enc (gpgsm->input_cb.data));
|
||
if (err)
|
||
return gpg_error (GPG_ERR_GENERAL); /* FIXME */
|
||
gpgsm->output_cb.data = plain;
|
||
err = gpgsm_set_fd (gpgsm, OUTPUT_FD, 0);
|
||
if (err)
|
||
return gpg_error (GPG_ERR_GENERAL); /* FIXME */
|
||
gpgsm_clear_fd (gpgsm, MESSAGE_FD);
|
||
gpgsm->inline_data = NULL;
|
||
|
||
err = start (engine, "DECRYPT");
|
||
return err;
|
||
}
|
||
|
||
|
||
static gpgme_error_t
|
||
gpgsm_delete (void *engine, gpgme_key_t key, int allow_secret)
|
||
{
|
||
engine_gpgsm_t gpgsm = engine;
|
||
gpgme_error_t err;
|
||
char *fpr = key->subkeys ? key->subkeys->fpr : NULL;
|
||
char *linep = fpr;
|
||
char *line;
|
||
int length = 8; /* "DELKEYS " */
|
||
|
||
if (!fpr)
|
||
return gpg_error (GPG_ERR_INV_VALUE);
|
||
|
||
while (*linep)
|
||
{
|
||
length++;
|
||
if (*linep == '%' || *linep == ' ' || *linep == '+')
|
||
length += 2;
|
||
linep++;
|
||
}
|
||
length++;
|
||
|
||
line = malloc (length);
|
||
if (!line)
|
||
return gpg_error_from_errno (errno);
|
||
|
||
strcpy (line, "DELKEYS ");
|
||
linep = &line[8];
|
||
|
||
while (*fpr)
|
||
{
|
||
switch (*fpr)
|
||
{
|
||
case '%':
|
||
*(linep++) = '%';
|
||
*(linep++) = '2';
|
||
*(linep++) = '5';
|
||
break;
|
||
case ' ':
|
||
*(linep++) = '%';
|
||
*(linep++) = '2';
|
||
*(linep++) = '0';
|
||
break;
|
||
case '+':
|
||
*(linep++) = '%';
|
||
*(linep++) = '2';
|
||
*(linep++) = 'B';
|
||
break;
|
||
default:
|
||
*(linep++) = *fpr;
|
||
break;
|
||
}
|
||
fpr++;
|
||
}
|
||
*linep = '\0';
|
||
|
||
gpgsm_clear_fd (gpgsm, OUTPUT_FD);
|
||
gpgsm_clear_fd (gpgsm, INPUT_FD);
|
||
gpgsm_clear_fd (gpgsm, MESSAGE_FD);
|
||
gpgsm->inline_data = NULL;
|
||
|
||
err = start (gpgsm, line);
|
||
free (line);
|
||
|
||
return err;
|
||
}
|
||
|
||
|
||
static gpgme_error_t
|
||
set_recipients (engine_gpgsm_t gpgsm, gpgme_key_t recp[])
|
||
{
|
||
gpgme_error_t err = 0;
|
||
assuan_context_t ctx = gpgsm->assuan_ctx;
|
||
char *line;
|
||
int linelen;
|
||
int invalid_recipients = 0;
|
||
int i = 0;
|
||
|
||
linelen = 10 + 40 + 1; /* "RECIPIENT " + guess + '\0'. */
|
||
line = malloc (10 + 40 + 1);
|
||
if (!line)
|
||
return gpg_error_from_errno (errno);
|
||
strcpy (line, "RECIPIENT ");
|
||
while (!err && recp[i])
|
||
{
|
||
char *fpr;
|
||
int newlen;
|
||
|
||
if (!recp[i]->subkeys || !recp[i]->subkeys->fpr)
|
||
{
|
||
invalid_recipients++;
|
||
continue;
|
||
}
|
||
fpr = recp[i]->subkeys->fpr;
|
||
|
||
newlen = 11 + strlen (fpr);
|
||
if (linelen < newlen)
|
||
{
|
||
char *newline = realloc (line, newlen);
|
||
if (! newline)
|
||
{
|
||
int saved_errno = errno;
|
||
free (line);
|
||
return gpg_error_from_errno (saved_errno);
|
||
}
|
||
line = newline;
|
||
linelen = newlen;
|
||
}
|
||
strcpy (&line[10], fpr);
|
||
|
||
err = gpgsm_assuan_simple_command (ctx, line, gpgsm->status.fnc,
|
||
gpgsm->status.fnc_value);
|
||
/* FIXME: This requires more work. */
|
||
if (gpg_err_code (err) == GPG_ERR_NO_PUBKEY)
|
||
invalid_recipients++;
|
||
else if (err)
|
||
{
|
||
free (line);
|
||
return err;
|
||
}
|
||
i++;
|
||
}
|
||
free (line);
|
||
return gpg_error (invalid_recipients
|
||
? GPG_ERR_UNUSABLE_PUBKEY : GPG_ERR_NO_ERROR);
|
||
}
|
||
|
||
|
||
static gpgme_error_t
|
||
gpgsm_encrypt (void *engine, gpgme_key_t recp[], gpgme_encrypt_flags_t flags,
|
||
gpgme_data_t plain, gpgme_data_t ciph, int use_armor)
|
||
{
|
||
engine_gpgsm_t gpgsm = engine;
|
||
gpgme_error_t err;
|
||
|
||
if (!gpgsm)
|
||
return gpg_error (GPG_ERR_INV_VALUE);
|
||
if (!recp)
|
||
return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
|
||
|
||
if (flags & GPGME_ENCRYPT_NO_ENCRYPT_TO)
|
||
{
|
||
err = gpgsm_assuan_simple_command (gpgsm->assuan_ctx,
|
||
"OPTION no-encrypt-to", NULL, NULL);
|
||
if (err)
|
||
return err;
|
||
}
|
||
|
||
gpgsm->input_cb.data = plain;
|
||
err = gpgsm_set_fd (gpgsm, INPUT_FD, map_data_enc (gpgsm->input_cb.data));
|
||
if (err)
|
||
return err;
|
||
gpgsm->output_cb.data = ciph;
|
||
err = gpgsm_set_fd (gpgsm, OUTPUT_FD, use_armor ? "--armor"
|
||
: map_data_enc (gpgsm->output_cb.data));
|
||
if (err)
|
||
return err;
|
||
gpgsm_clear_fd (gpgsm, MESSAGE_FD);
|
||
gpgsm->inline_data = NULL;
|
||
|
||
err = set_recipients (gpgsm, recp);
|
||
|
||
if (!err)
|
||
err = start (gpgsm, "ENCRYPT");
|
||
|
||
return err;
|
||
}
|
||
|
||
|
||
static gpgme_error_t
|
||
gpgsm_export (void *engine, const char *pattern, gpgme_export_mode_t mode,
|
||
gpgme_data_t keydata, int use_armor)
|
||
{
|
||
engine_gpgsm_t gpgsm = engine;
|
||
gpgme_error_t err = 0;
|
||
char *cmd;
|
||
|
||
if (!gpgsm)
|
||
return gpg_error (GPG_ERR_INV_VALUE);
|
||
|
||
if (mode)
|
||
return gpg_error (GPG_ERR_NOT_SUPPORTED);
|
||
|
||
if (!pattern)
|
||
pattern = "";
|
||
|
||
cmd = malloc (7 + strlen (pattern) + 1);
|
||
if (!cmd)
|
||
return gpg_error_from_errno (errno);
|
||
strcpy (cmd, "EXPORT ");
|
||
strcpy (&cmd[7], pattern);
|
||
|
||
gpgsm->output_cb.data = keydata;
|
||
err = gpgsm_set_fd (gpgsm, OUTPUT_FD, use_armor ? "--armor"
|
||
: map_data_enc (gpgsm->output_cb.data));
|
||
if (err)
|
||
return err;
|
||
gpgsm_clear_fd (gpgsm, INPUT_FD);
|
||
gpgsm_clear_fd (gpgsm, MESSAGE_FD);
|
||
gpgsm->inline_data = NULL;
|
||
|
||
err = start (gpgsm, cmd);
|
||
free (cmd);
|
||
return err;
|
||
}
|
||
|
||
|
||
static gpgme_error_t
|
||
gpgsm_export_ext (void *engine, const char *pattern[], gpgme_export_mode_t mode,
|
||
gpgme_data_t keydata, int use_armor)
|
||
{
|
||
engine_gpgsm_t gpgsm = engine;
|
||
gpgme_error_t err = 0;
|
||
char *line;
|
||
/* Length is "EXPORT " + p + '\0'. */
|
||
int length = 7 + 1;
|
||
char *linep;
|
||
|
||
if (!gpgsm)
|
||
return gpg_error (GPG_ERR_INV_VALUE);
|
||
|
||
if (mode)
|
||
return gpg_error (GPG_ERR_NOT_SUPPORTED);
|
||
|
||
if (pattern && *pattern)
|
||
{
|
||
const char **pat = pattern;
|
||
|
||
while (*pat)
|
||
{
|
||
const char *patlet = *pat;
|
||
|
||
while (*patlet)
|
||
{
|
||
length++;
|
||
if (*patlet == '%' || *patlet == ' ' || *patlet == '+')
|
||
length += 2;
|
||
patlet++;
|
||
}
|
||
pat++;
|
||
length++;
|
||
}
|
||
}
|
||
line = malloc (length);
|
||
if (!line)
|
||
return gpg_error_from_errno (errno);
|
||
|
||
strcpy (line, "EXPORT ");
|
||
linep = &line[7];
|
||
|
||
if (pattern && *pattern)
|
||
{
|
||
while (*pattern)
|
||
{
|
||
const char *patlet = *pattern;
|
||
|
||
while (*patlet)
|
||
{
|
||
switch (*patlet)
|
||
{
|
||
case '%':
|
||
*(linep++) = '%';
|
||
*(linep++) = '2';
|
||
*(linep++) = '5';
|
||
break;
|
||
case ' ':
|
||
*(linep++) = '%';
|
||
*(linep++) = '2';
|
||
*(linep++) = '0';
|
||
break;
|
||
case '+':
|
||
*(linep++) = '%';
|
||
*(linep++) = '2';
|
||
*(linep++) = 'B';
|
||
break;
|
||
default:
|
||
*(linep++) = *patlet;
|
||
break;
|
||
}
|
||
patlet++;
|
||
}
|
||
pattern++;
|
||
if (*pattern)
|
||
*linep++ = ' ';
|
||
}
|
||
}
|
||
*linep = '\0';
|
||
|
||
gpgsm->output_cb.data = keydata;
|
||
err = gpgsm_set_fd (gpgsm, OUTPUT_FD, use_armor ? "--armor"
|
||
: map_data_enc (gpgsm->output_cb.data));
|
||
if (err)
|
||
return err;
|
||
gpgsm_clear_fd (gpgsm, INPUT_FD);
|
||
gpgsm_clear_fd (gpgsm, MESSAGE_FD);
|
||
gpgsm->inline_data = NULL;
|
||
|
||
err = start (gpgsm, line);
|
||
free (line);
|
||
return err;
|
||
}
|
||
|
||
|
||
static gpgme_error_t
|
||
gpgsm_genkey (void *engine, gpgme_data_t help_data, int use_armor,
|
||
gpgme_data_t pubkey, gpgme_data_t seckey)
|
||
{
|
||
engine_gpgsm_t gpgsm = engine;
|
||
gpgme_error_t err;
|
||
|
||
if (!gpgsm || !pubkey || seckey)
|
||
return gpg_error (GPG_ERR_INV_VALUE);
|
||
|
||
gpgsm->input_cb.data = help_data;
|
||
err = gpgsm_set_fd (gpgsm, INPUT_FD, map_data_enc (gpgsm->input_cb.data));
|
||
if (err)
|
||
return err;
|
||
gpgsm->output_cb.data = pubkey;
|
||
err = gpgsm_set_fd (gpgsm, OUTPUT_FD, use_armor ? "--armor"
|
||
: map_data_enc (gpgsm->output_cb.data));
|
||
if (err)
|
||
return err;
|
||
gpgsm_clear_fd (gpgsm, MESSAGE_FD);
|
||
gpgsm->inline_data = NULL;
|
||
|
||
err = start (gpgsm, "GENKEY");
|
||
return err;
|
||
}
|
||
|
||
|
||
static gpgme_error_t
|
||
gpgsm_import (void *engine, gpgme_data_t keydata, gpgme_key_t *keyarray)
|
||
{
|
||
engine_gpgsm_t gpgsm = engine;
|
||
gpgme_error_t err;
|
||
gpgme_data_encoding_t dataenc;
|
||
|
||
if (!gpgsm)
|
||
return gpg_error (GPG_ERR_INV_VALUE);
|
||
|
||
if (keydata && keyarray)
|
||
gpg_error (GPG_ERR_INV_VALUE); /* Only one is allowed. */
|
||
|
||
dataenc = gpgme_data_get_encoding (keydata);
|
||
|
||
if (keyarray)
|
||
{
|
||
return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
|
||
}
|
||
else if (dataenc == GPGME_DATA_ENCODING_URL
|
||
|| dataenc == GPGME_DATA_ENCODING_URL0
|
||
|| dataenc == GPGME_DATA_ENCODING_URLESC)
|
||
{
|
||
return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
|
||
}
|
||
else
|
||
{
|
||
gpgsm->input_cb.data = keydata;
|
||
err = gpgsm_set_fd (gpgsm, INPUT_FD, map_data_enc (gpgsm->input_cb.data));
|
||
if (err)
|
||
return err;
|
||
gpgsm_clear_fd (gpgsm, OUTPUT_FD);
|
||
gpgsm_clear_fd (gpgsm, MESSAGE_FD);
|
||
gpgsm->inline_data = NULL;
|
||
}
|
||
|
||
err = start (gpgsm, "IMPORT");
|
||
return err;
|
||
}
|
||
|
||
|
||
static gpgme_error_t
|
||
gpgsm_keylist (void *engine, const char *pattern, int secret_only,
|
||
gpgme_keylist_mode_t mode)
|
||
{
|
||
engine_gpgsm_t gpgsm = engine;
|
||
char *line;
|
||
gpgme_error_t err;
|
||
int list_mode = 0;
|
||
|
||
if (mode & GPGME_KEYLIST_MODE_LOCAL)
|
||
list_mode |= 1;
|
||
if (mode & GPGME_KEYLIST_MODE_EXTERN)
|
||
list_mode |= 2;
|
||
|
||
if (!pattern)
|
||
pattern = "";
|
||
|
||
/* Always send list-mode option because RESET does not reset it. */
|
||
if (asprintf (&line, "OPTION list-mode=%d", (list_mode & 3)) < 0)
|
||
return gpg_error_from_errno (errno);
|
||
err = gpgsm_assuan_simple_command (gpgsm->assuan_ctx, line, NULL, NULL);
|
||
free (line);
|
||
if (err)
|
||
return err;
|
||
|
||
|
||
/* Always send key validation because RESET does not reset it. */
|
||
|
||
/* Use the validation mode if requested. We don't check for an error
|
||
yet because this is a pretty fresh gpgsm features. */
|
||
gpgsm_assuan_simple_command (gpgsm->assuan_ctx,
|
||
(mode & GPGME_KEYLIST_MODE_VALIDATE)?
|
||
"OPTION with-validation=1":
|
||
"OPTION with-validation=0" ,
|
||
NULL, NULL);
|
||
/* Include the ephemeral keys if requested. We don't check for an error
|
||
yet because this is a pretty fresh gpgsm features. */
|
||
gpgsm_assuan_simple_command (gpgsm->assuan_ctx,
|
||
(mode & GPGME_KEYLIST_MODE_EPHEMERAL)?
|
||
"OPTION with-ephemeral-keys=1":
|
||
"OPTION with-ephemeral-keys=0" ,
|
||
NULL, NULL);
|
||
|
||
|
||
/* Length is "LISTSECRETKEYS " + p + '\0'. */
|
||
line = malloc (15 + strlen (pattern) + 1);
|
||
if (!line)
|
||
return gpg_error_from_errno (errno);
|
||
if (secret_only)
|
||
{
|
||
strcpy (line, "LISTSECRETKEYS ");
|
||
strcpy (&line[15], pattern);
|
||
}
|
||
else
|
||
{
|
||
strcpy (line, "LISTKEYS ");
|
||
strcpy (&line[9], pattern);
|
||
}
|
||
|
||
gpgsm_clear_fd (gpgsm, INPUT_FD);
|
||
gpgsm_clear_fd (gpgsm, OUTPUT_FD);
|
||
gpgsm_clear_fd (gpgsm, MESSAGE_FD);
|
||
gpgsm->inline_data = NULL;
|
||
|
||
err = start (gpgsm, line);
|
||
free (line);
|
||
return err;
|
||
}
|
||
|
||
|
||
static gpgme_error_t
|
||
gpgsm_keylist_ext (void *engine, const char *pattern[], int secret_only,
|
||
int reserved, gpgme_keylist_mode_t mode)
|
||
{
|
||
engine_gpgsm_t gpgsm = engine;
|
||
char *line;
|
||
gpgme_error_t err;
|
||
/* Length is "LISTSECRETKEYS " + p + '\0'. */
|
||
int length = 15 + 1;
|
||
char *linep;
|
||
int any_pattern = 0;
|
||
int list_mode = 0;
|
||
|
||
if (reserved)
|
||
return gpg_error (GPG_ERR_INV_VALUE);
|
||
|
||
if (mode & GPGME_KEYLIST_MODE_LOCAL)
|
||
list_mode |= 1;
|
||
if (mode & GPGME_KEYLIST_MODE_EXTERN)
|
||
list_mode |= 2;
|
||
|
||
/* Always send list-mode option because RESET does not reset it. */
|
||
if (asprintf (&line, "OPTION list-mode=%d", (list_mode & 3)) < 0)
|
||
return gpg_error_from_errno (errno);
|
||
err = gpgsm_assuan_simple_command (gpgsm->assuan_ctx, line, NULL, NULL);
|
||
free (line);
|
||
if (err)
|
||
return err;
|
||
|
||
/* Always send key validation because RESET does not reset it. */
|
||
/* Use the validation mode if required. We don't check for an error
|
||
yet because this is a pretty fresh gpgsm features. */
|
||
gpgsm_assuan_simple_command (gpgsm->assuan_ctx,
|
||
(mode & GPGME_KEYLIST_MODE_VALIDATE)?
|
||
"OPTION with-validation=1":
|
||
"OPTION with-validation=0" ,
|
||
NULL, NULL);
|
||
|
||
|
||
if (pattern && *pattern)
|
||
{
|
||
const char **pat = pattern;
|
||
|
||
while (*pat)
|
||
{
|
||
const char *patlet = *pat;
|
||
|
||
while (*patlet)
|
||
{
|
||
length++;
|
||
if (*patlet == '%' || *patlet == ' ' || *patlet == '+')
|
||
length += 2;
|
||
patlet++;
|
||
}
|
||
pat++;
|
||
length++;
|
||
}
|
||
}
|
||
line = malloc (length);
|
||
if (!line)
|
||
return gpg_error_from_errno (errno);
|
||
if (secret_only)
|
||
{
|
||
strcpy (line, "LISTSECRETKEYS ");
|
||
linep = &line[15];
|
||
}
|
||
else
|
||
{
|
||
strcpy (line, "LISTKEYS ");
|
||
linep = &line[9];
|
||
}
|
||
|
||
if (pattern && *pattern)
|
||
{
|
||
while (*pattern)
|
||
{
|
||
const char *patlet = *pattern;
|
||
|
||
while (*patlet)
|
||
{
|
||
switch (*patlet)
|
||
{
|
||
case '%':
|
||
*(linep++) = '%';
|
||
*(linep++) = '2';
|
||
*(linep++) = '5';
|
||
break;
|
||
case ' ':
|
||
*(linep++) = '%';
|
||
*(linep++) = '2';
|
||
*(linep++) = '0';
|
||
break;
|
||
case '+':
|
||
*(linep++) = '%';
|
||
*(linep++) = '2';
|
||
*(linep++) = 'B';
|
||
break;
|
||
default:
|
||
*(linep++) = *patlet;
|
||
break;
|
||
}
|
||
patlet++;
|
||
}
|
||
any_pattern = 1;
|
||
*linep++ = ' ';
|
||
pattern++;
|
||
}
|
||
}
|
||
if (any_pattern)
|
||
linep--;
|
||
*linep = '\0';
|
||
|
||
gpgsm_clear_fd (gpgsm, INPUT_FD);
|
||
gpgsm_clear_fd (gpgsm, OUTPUT_FD);
|
||
gpgsm_clear_fd (gpgsm, MESSAGE_FD);
|
||
gpgsm->inline_data = NULL;
|
||
|
||
err = start (gpgsm, line);
|
||
free (line);
|
||
return err;
|
||
}
|
||
|
||
|
||
static gpgme_error_t
|
||
gpgsm_sign (void *engine, gpgme_data_t in, gpgme_data_t out,
|
||
gpgme_sig_mode_t mode, int use_armor, int use_textmode,
|
||
int include_certs, gpgme_ctx_t ctx /* FIXME */)
|
||
{
|
||
engine_gpgsm_t gpgsm = engine;
|
||
gpgme_error_t err;
|
||
char *assuan_cmd;
|
||
int i;
|
||
gpgme_key_t key;
|
||
|
||
if (!gpgsm)
|
||
return gpg_error (GPG_ERR_INV_VALUE);
|
||
|
||
/* FIXME: This does not work as RESET does not reset it so we can't
|
||
revert back to default. */
|
||
if (include_certs != GPGME_INCLUDE_CERTS_DEFAULT)
|
||
{
|
||
/* FIXME: Make sure that if we run multiple operations, that we
|
||
can reset any previously set value in case the default is
|
||
requested. */
|
||
|
||
if (asprintf (&assuan_cmd, "OPTION include-certs %i", include_certs) < 0)
|
||
return gpg_error_from_errno (errno);
|
||
err = gpgsm_assuan_simple_command (gpgsm->assuan_ctx, assuan_cmd,
|
||
NULL, NULL);
|
||
free (assuan_cmd);
|
||
if (err)
|
||
return err;
|
||
}
|
||
|
||
for (i = 0; (key = gpgme_signers_enum (ctx, i)); i++)
|
||
{
|
||
const char *s = key->subkeys ? key->subkeys->fpr : NULL;
|
||
if (s && strlen (s) < 80)
|
||
{
|
||
char buf[100];
|
||
|
||
strcpy (stpcpy (buf, "SIGNER "), s);
|
||
err = gpgsm_assuan_simple_command (gpgsm->assuan_ctx, buf,
|
||
NULL, NULL);
|
||
}
|
||
else
|
||
err = gpg_error (GPG_ERR_INV_VALUE);
|
||
gpgme_key_unref (key);
|
||
if (err)
|
||
return err;
|
||
}
|
||
|
||
gpgsm->input_cb.data = in;
|
||
err = gpgsm_set_fd (gpgsm, INPUT_FD, map_data_enc (gpgsm->input_cb.data));
|
||
if (err)
|
||
return err;
|
||
gpgsm->output_cb.data = out;
|
||
err = gpgsm_set_fd (gpgsm, OUTPUT_FD, use_armor ? "--armor"
|
||
: map_data_enc (gpgsm->output_cb.data));
|
||
if (err)
|
||
return err;
|
||
gpgsm_clear_fd (gpgsm, MESSAGE_FD);
|
||
gpgsm->inline_data = NULL;
|
||
|
||
err = start (gpgsm, mode == GPGME_SIG_MODE_DETACH
|
||
? "SIGN --detached" : "SIGN");
|
||
return err;
|
||
}
|
||
|
||
|
||
static gpgme_error_t
|
||
gpgsm_verify (void *engine, gpgme_data_t sig, gpgme_data_t signed_text,
|
||
gpgme_data_t plaintext)
|
||
{
|
||
engine_gpgsm_t gpgsm = engine;
|
||
gpgme_error_t err;
|
||
|
||
if (!gpgsm)
|
||
return gpg_error (GPG_ERR_INV_VALUE);
|
||
|
||
gpgsm->input_cb.data = sig;
|
||
err = gpgsm_set_fd (gpgsm, INPUT_FD, map_data_enc (gpgsm->input_cb.data));
|
||
if (err)
|
||
return err;
|
||
if (plaintext)
|
||
{
|
||
/* Normal or cleartext signature. */
|
||
gpgsm->output_cb.data = plaintext;
|
||
err = gpgsm_set_fd (gpgsm, OUTPUT_FD, 0);
|
||
gpgsm_clear_fd (gpgsm, MESSAGE_FD);
|
||
}
|
||
else
|
||
{
|
||
/* Detached signature. */
|
||
gpgsm->message_cb.data = signed_text;
|
||
err = gpgsm_set_fd (gpgsm, MESSAGE_FD, 0);
|
||
gpgsm_clear_fd (gpgsm, OUTPUT_FD);
|
||
}
|
||
gpgsm->inline_data = NULL;
|
||
|
||
if (!err)
|
||
err = start (gpgsm, "VERIFY");
|
||
|
||
return err;
|
||
}
|
||
|
||
|
||
/* Send the GETAUDITLOG command. The result is saved to a gpgme data
|
||
object. */
|
||
static gpgme_error_t
|
||
gpgsm_getauditlog (void *engine, gpgme_data_t output, unsigned int flags)
|
||
{
|
||
engine_gpgsm_t gpgsm = engine;
|
||
gpgme_error_t err = 0;
|
||
|
||
if (!gpgsm || !output)
|
||
return gpg_error (GPG_ERR_INV_VALUE);
|
||
|
||
#if USE_DESCRIPTOR_PASSING
|
||
gpgsm->output_cb.data = output;
|
||
err = gpgsm_set_fd (gpgsm, OUTPUT_FD, 0);
|
||
if (err)
|
||
return err;
|
||
|
||
gpgsm_clear_fd (gpgsm, INPUT_FD);
|
||
gpgsm_clear_fd (gpgsm, MESSAGE_FD);
|
||
gpgsm->inline_data = NULL;
|
||
# define CMD "GETAUDITLOG"
|
||
#else
|
||
gpgsm_clear_fd (gpgsm, OUTPUT_FD);
|
||
gpgsm_clear_fd (gpgsm, INPUT_FD);
|
||
gpgsm_clear_fd (gpgsm, MESSAGE_FD);
|
||
gpgsm->inline_data = output;
|
||
# define CMD "GETAUDITLOG --data"
|
||
#endif
|
||
|
||
err = start (gpgsm, (flags & GPGME_AUDITLOG_HTML)? CMD " --html" : CMD);
|
||
|
||
return err;
|
||
}
|
||
|
||
|
||
|
||
static void
|
||
gpgsm_set_status_handler (void *engine, engine_status_handler_t fnc,
|
||
void *fnc_value)
|
||
{
|
||
engine_gpgsm_t gpgsm = engine;
|
||
|
||
gpgsm->status.fnc = fnc;
|
||
gpgsm->status.fnc_value = fnc_value;
|
||
}
|
||
|
||
|
||
static gpgme_error_t
|
||
gpgsm_set_colon_line_handler (void *engine, engine_colon_line_handler_t fnc,
|
||
void *fnc_value)
|
||
{
|
||
engine_gpgsm_t gpgsm = engine;
|
||
|
||
gpgsm->colon.fnc = fnc;
|
||
gpgsm->colon.fnc_value = fnc_value;
|
||
gpgsm->colon.any = 0;
|
||
return 0;
|
||
}
|
||
|
||
|
||
static void
|
||
gpgsm_set_io_cbs (void *engine, gpgme_io_cbs_t io_cbs)
|
||
{
|
||
engine_gpgsm_t gpgsm = engine;
|
||
gpgsm->io_cbs = *io_cbs;
|
||
}
|
||
|
||
|
||
static void
|
||
gpgsm_io_event (void *engine, gpgme_event_io_t type, void *type_data)
|
||
{
|
||
engine_gpgsm_t gpgsm = engine;
|
||
|
||
TRACE3 (DEBUG_ENGINE, "gpgme:gpgsm_io_event", gpgsm,
|
||
"event %p, type %d, type_data %p",
|
||
gpgsm->io_cbs.event, type, type_data);
|
||
if (gpgsm->io_cbs.event)
|
||
(*gpgsm->io_cbs.event) (gpgsm->io_cbs.event_priv, type, type_data);
|
||
}
|
||
|
||
|
||
struct engine_ops _gpgme_engine_ops_gpgsm =
|
||
{
|
||
/* Static functions. */
|
||
_gpgme_get_gpgsm_path,
|
||
NULL,
|
||
gpgsm_get_version,
|
||
gpgsm_get_req_version,
|
||
gpgsm_new,
|
||
|
||
/* Member functions. */
|
||
gpgsm_release,
|
||
#if USE_DESCRIPTOR_PASSING
|
||
gpgsm_reset,
|
||
#else
|
||
NULL, /* reset */
|
||
#endif
|
||
gpgsm_set_status_handler,
|
||
NULL, /* set_command_handler */
|
||
gpgsm_set_colon_line_handler,
|
||
gpgsm_set_locale,
|
||
gpgsm_decrypt,
|
||
gpgsm_delete,
|
||
NULL, /* edit */
|
||
gpgsm_encrypt,
|
||
NULL, /* encrypt_sign */
|
||
gpgsm_export,
|
||
gpgsm_export_ext,
|
||
gpgsm_genkey,
|
||
gpgsm_import,
|
||
gpgsm_keylist,
|
||
gpgsm_keylist_ext,
|
||
gpgsm_sign,
|
||
NULL, /* trustlist */
|
||
gpgsm_verify,
|
||
gpgsm_getauditlog,
|
||
NULL, /* opassuan_transact */
|
||
NULL, /* conf_load */
|
||
NULL, /* conf_save */
|
||
gpgsm_set_io_cbs,
|
||
gpgsm_io_event,
|
||
gpgsm_cancel
|
||
};
|