543 lines
15 KiB
C
543 lines
15 KiB
C
/* apps/engine.c -*- mode: C; c-file-style: "eay" -*- */
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/* Written by Richard Levitte <richard@levitte.org> for the OpenSSL
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* project 2000.
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*/
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/* ====================================================================
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* Copyright (c) 2000 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* licensing@OpenSSL.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#ifdef OPENSSL_NO_STDIO
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#define APPS_WIN16
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#endif
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#include "apps.h"
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#include <openssl/err.h>
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#ifndef OPENSSL_NO_ENGINE
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#include <openssl/engine.h>
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#include <openssl/ssl.h>
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#undef PROG
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#define PROG engine_main
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static const char *engine_usage[]={
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"usage: engine opts [engine ...]\n",
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" -v[v[v[v]]] - verbose mode, for each engine, list its 'control commands'\n",
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" -vv will additionally display each command's description\n",
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" -vvv will also add the input flags for each command\n",
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" -vvvv will also show internal input flags\n",
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" -c - for each engine, also list the capabilities\n",
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" -t[t] - for each engine, check that they are really available\n",
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" -tt will display error trace for unavailable engines\n",
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" -pre <cmd> - runs command 'cmd' against the ENGINE before any attempts\n",
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" to load it (if -t is used)\n",
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" -post <cmd> - runs command 'cmd' against the ENGINE after loading it\n",
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" (only used if -t is also provided)\n",
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" NB: -pre and -post will be applied to all ENGINEs supplied on the command\n",
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" line, or all supported ENGINEs if none are specified.\n",
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" Eg. '-pre \"SO_PATH:/lib/libdriver.so\"' calls command \"SO_PATH\" with\n",
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" argument \"/lib/libdriver.so\".\n",
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NULL
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};
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static void identity(void *ptr)
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{
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return;
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}
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static int append_buf(char **buf, const char *s, int *size, int step)
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{
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int l = strlen(s);
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if (*buf == NULL)
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{
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*size = step;
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*buf = OPENSSL_malloc(*size);
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if (*buf == NULL)
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return 0;
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**buf = '\0';
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}
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if (**buf != '\0')
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l += 2; /* ", " */
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if (strlen(*buf) + strlen(s) >= (unsigned int)*size)
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{
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*size += step;
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*buf = OPENSSL_realloc(*buf, *size);
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}
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if (*buf == NULL)
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return 0;
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if (**buf != '\0')
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BUF_strlcat(*buf, ", ", *size);
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BUF_strlcat(*buf, s, *size);
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return 1;
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}
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static int util_flags(BIO *bio_out, unsigned int flags, const char *indent)
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{
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int started = 0, err = 0;
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/* Indent before displaying input flags */
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BIO_printf(bio_out, "%s%s(input flags): ", indent, indent);
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if(flags == 0)
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{
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BIO_printf(bio_out, "<no flags>\n");
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return 1;
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}
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/* If the object is internal, mark it in a way that shows instead of
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* having it part of all the other flags, even if it really is. */
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if(flags & ENGINE_CMD_FLAG_INTERNAL)
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{
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BIO_printf(bio_out, "[Internal] ");
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}
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if(flags & ENGINE_CMD_FLAG_NUMERIC)
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{
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if(started)
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{
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BIO_printf(bio_out, "|");
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err = 1;
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}
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BIO_printf(bio_out, "NUMERIC");
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started = 1;
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}
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/* Now we check that no combinations of the mutually exclusive NUMERIC,
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* STRING, and NO_INPUT flags have been used. Future flags that can be
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* OR'd together with these would need to added after these to preserve
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* the testing logic. */
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if(flags & ENGINE_CMD_FLAG_STRING)
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{
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if(started)
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{
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BIO_printf(bio_out, "|");
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err = 1;
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}
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BIO_printf(bio_out, "STRING");
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started = 1;
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}
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if(flags & ENGINE_CMD_FLAG_NO_INPUT)
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{
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if(started)
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{
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BIO_printf(bio_out, "|");
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err = 1;
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}
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BIO_printf(bio_out, "NO_INPUT");
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started = 1;
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}
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/* Check for unknown flags */
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flags = flags & ~ENGINE_CMD_FLAG_NUMERIC &
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~ENGINE_CMD_FLAG_STRING &
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~ENGINE_CMD_FLAG_NO_INPUT &
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~ENGINE_CMD_FLAG_INTERNAL;
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if(flags)
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{
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if(started) BIO_printf(bio_out, "|");
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BIO_printf(bio_out, "<0x%04X>", flags);
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}
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if(err)
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BIO_printf(bio_out, " <illegal flags!>");
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BIO_printf(bio_out, "\n");
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return 1;
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}
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static int util_verbose(ENGINE *e, int verbose, BIO *bio_out, const char *indent)
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{
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static const int line_wrap = 78;
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int num;
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int ret = 0;
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char *name = NULL;
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char *desc = NULL;
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int flags;
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int xpos = 0;
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STACK *cmds = NULL;
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if(!ENGINE_ctrl(e, ENGINE_CTRL_HAS_CTRL_FUNCTION, 0, NULL, NULL) ||
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((num = ENGINE_ctrl(e, ENGINE_CTRL_GET_FIRST_CMD_TYPE,
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0, NULL, NULL)) <= 0))
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{
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#if 0
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BIO_printf(bio_out, "%s<no control commands>\n", indent);
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#endif
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return 1;
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}
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cmds = sk_new_null();
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if(!cmds)
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goto err;
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do {
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int len;
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/* Get the command input flags */
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if((flags = ENGINE_ctrl(e, ENGINE_CTRL_GET_CMD_FLAGS, num,
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NULL, NULL)) < 0)
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goto err;
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if (!(flags & ENGINE_CMD_FLAG_INTERNAL) || verbose >= 4)
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{
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/* Get the command name */
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if((len = ENGINE_ctrl(e, ENGINE_CTRL_GET_NAME_LEN_FROM_CMD, num,
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NULL, NULL)) <= 0)
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goto err;
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if((name = OPENSSL_malloc(len + 1)) == NULL)
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goto err;
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if(ENGINE_ctrl(e, ENGINE_CTRL_GET_NAME_FROM_CMD, num, name,
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NULL) <= 0)
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goto err;
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/* Get the command description */
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if((len = ENGINE_ctrl(e, ENGINE_CTRL_GET_DESC_LEN_FROM_CMD, num,
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NULL, NULL)) < 0)
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goto err;
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if(len > 0)
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{
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if((desc = OPENSSL_malloc(len + 1)) == NULL)
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goto err;
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if(ENGINE_ctrl(e, ENGINE_CTRL_GET_DESC_FROM_CMD, num, desc,
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NULL) <= 0)
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goto err;
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}
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/* Now decide on the output */
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if(xpos == 0)
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/* Do an indent */
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xpos = BIO_puts(bio_out, indent);
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else
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/* Otherwise prepend a ", " */
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xpos += BIO_printf(bio_out, ", ");
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if(verbose == 1)
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{
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/* We're just listing names, comma-delimited */
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if((xpos > (int)strlen(indent)) &&
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(xpos + (int)strlen(name) > line_wrap))
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{
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BIO_printf(bio_out, "\n");
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xpos = BIO_puts(bio_out, indent);
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}
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xpos += BIO_printf(bio_out, "%s", name);
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}
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else
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{
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/* We're listing names plus descriptions */
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BIO_printf(bio_out, "%s: %s\n", name,
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(desc == NULL) ? "<no description>" : desc);
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/* ... and sometimes input flags */
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if((verbose >= 3) && !util_flags(bio_out, flags,
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indent))
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goto err;
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xpos = 0;
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}
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}
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OPENSSL_free(name); name = NULL;
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if(desc) { OPENSSL_free(desc); desc = NULL; }
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/* Move to the next command */
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num = ENGINE_ctrl(e, ENGINE_CTRL_GET_NEXT_CMD_TYPE,
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num, NULL, NULL);
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} while(num > 0);
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if(xpos > 0)
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BIO_printf(bio_out, "\n");
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ret = 1;
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err:
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if(cmds) sk_pop_free(cmds, identity);
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if(name) OPENSSL_free(name);
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if(desc) OPENSSL_free(desc);
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return ret;
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}
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static void util_do_cmds(ENGINE *e, STACK *cmds, BIO *bio_out, const char *indent)
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{
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int loop, res, num = sk_num(cmds);
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if(num < 0)
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{
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BIO_printf(bio_out, "[Error]: internal stack error\n");
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return;
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}
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for(loop = 0; loop < num; loop++)
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{
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char buf[256];
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const char *cmd, *arg;
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cmd = sk_value(cmds, loop);
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res = 1; /* assume success */
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/* Check if this command has no ":arg" */
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if((arg = strstr(cmd, ":")) == NULL)
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{
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if(!ENGINE_ctrl_cmd_string(e, cmd, NULL, 0))
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res = 0;
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}
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else
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{
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if((int)(arg - cmd) > 254)
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{
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BIO_printf(bio_out,"[Error]: command name too long\n");
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return;
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}
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memcpy(buf, cmd, (int)(arg - cmd));
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buf[arg-cmd] = '\0';
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arg++; /* Move past the ":" */
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/* Call the command with the argument */
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if(!ENGINE_ctrl_cmd_string(e, buf, arg, 0))
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res = 0;
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}
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if(res)
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BIO_printf(bio_out, "[Success]: %s\n", cmd);
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else
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{
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BIO_printf(bio_out, "[Failure]: %s\n", cmd);
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ERR_print_errors(bio_out);
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}
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}
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}
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int MAIN(int, char **);
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int MAIN(int argc, char **argv)
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{
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int ret=1,i;
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const char **pp;
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int verbose=0, list_cap=0, test_avail=0, test_avail_noise = 0;
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ENGINE *e;
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STACK *engines = sk_new_null();
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STACK *pre_cmds = sk_new_null();
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STACK *post_cmds = sk_new_null();
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int badops=1;
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BIO *bio_out=NULL;
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const char *indent = " ";
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apps_startup();
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SSL_load_error_strings();
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if (bio_err == NULL)
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bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
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if (!load_config(bio_err, NULL))
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goto end;
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bio_out=BIO_new_fp(stdout,BIO_NOCLOSE);
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#ifdef OPENSSL_SYS_VMS
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{
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BIO *tmpbio = BIO_new(BIO_f_linebuffer());
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bio_out = BIO_push(tmpbio, bio_out);
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}
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#endif
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argc--;
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argv++;
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while (argc >= 1)
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{
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if (strncmp(*argv,"-v",2) == 0)
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{
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if(strspn(*argv + 1, "v") < strlen(*argv + 1))
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goto skip_arg_loop;
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if((verbose=strlen(*argv + 1)) > 4)
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goto skip_arg_loop;
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}
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else if (strcmp(*argv,"-c") == 0)
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list_cap=1;
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else if (strncmp(*argv,"-t",2) == 0)
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{
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test_avail=1;
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if(strspn(*argv + 1, "t") < strlen(*argv + 1))
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goto skip_arg_loop;
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if((test_avail_noise = strlen(*argv + 1) - 1) > 1)
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goto skip_arg_loop;
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}
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else if (strcmp(*argv,"-pre") == 0)
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{
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argc--; argv++;
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if (argc == 0)
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goto skip_arg_loop;
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sk_push(pre_cmds,*argv);
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}
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else if (strcmp(*argv,"-post") == 0)
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{
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argc--; argv++;
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if (argc == 0)
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goto skip_arg_loop;
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sk_push(post_cmds,*argv);
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}
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else if ((strncmp(*argv,"-h",2) == 0) ||
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(strcmp(*argv,"-?") == 0))
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goto skip_arg_loop;
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else
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sk_push(engines,*argv);
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argc--;
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argv++;
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}
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/* Looks like everything went OK */
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badops = 0;
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skip_arg_loop:
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if (badops)
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{
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for (pp=engine_usage; (*pp != NULL); pp++)
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BIO_printf(bio_err,"%s",*pp);
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goto end;
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}
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if (sk_num(engines) == 0)
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{
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for(e = ENGINE_get_first(); e != NULL; e = ENGINE_get_next(e))
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{
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sk_push(engines,(char *)ENGINE_get_id(e));
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}
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}
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for (i=0; i<sk_num(engines); i++)
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{
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const char *id = sk_value(engines,i);
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if ((e = ENGINE_by_id(id)) != NULL)
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{
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const char *name = ENGINE_get_name(e);
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/* Do "id" first, then "name". Easier to auto-parse. */
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BIO_printf(bio_out, "(%s) %s\n", id, name);
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util_do_cmds(e, pre_cmds, bio_out, indent);
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if (strcmp(ENGINE_get_id(e), id) != 0)
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{
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BIO_printf(bio_out, "Loaded: (%s) %s\n",
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ENGINE_get_id(e), ENGINE_get_name(e));
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}
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if (list_cap)
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{
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int cap_size = 256;
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char *cap_buf = NULL;
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int k,n;
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const int *nids;
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ENGINE_CIPHERS_PTR fn_c;
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ENGINE_DIGESTS_PTR fn_d;
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if (ENGINE_get_RSA(e) != NULL
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&& !append_buf(&cap_buf, "RSA",
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&cap_size, 256))
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goto end;
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if (ENGINE_get_DSA(e) != NULL
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&& !append_buf(&cap_buf, "DSA",
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&cap_size, 256))
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goto end;
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if (ENGINE_get_DH(e) != NULL
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&& !append_buf(&cap_buf, "DH",
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&cap_size, 256))
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goto end;
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if (ENGINE_get_RAND(e) != NULL
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&& !append_buf(&cap_buf, "RAND",
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&cap_size, 256))
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goto end;
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fn_c = ENGINE_get_ciphers(e);
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if(!fn_c) goto skip_ciphers;
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n = fn_c(e, NULL, &nids, 0);
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for(k=0 ; k < n ; ++k)
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if(!append_buf(&cap_buf,
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OBJ_nid2sn(nids[k]),
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&cap_size, 256))
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goto end;
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skip_ciphers:
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fn_d = ENGINE_get_digests(e);
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if(!fn_d) goto skip_digests;
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n = fn_d(e, NULL, &nids, 0);
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for(k=0 ; k < n ; ++k)
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if(!append_buf(&cap_buf,
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OBJ_nid2sn(nids[k]),
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&cap_size, 256))
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goto end;
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skip_digests:
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if (cap_buf && (*cap_buf != '\0'))
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BIO_printf(bio_out, " [%s]\n", cap_buf);
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OPENSSL_free(cap_buf);
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}
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if(test_avail)
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{
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BIO_printf(bio_out, "%s", indent);
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if (ENGINE_init(e))
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{
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BIO_printf(bio_out, "[ available ]\n");
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util_do_cmds(e, post_cmds, bio_out, indent);
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ENGINE_finish(e);
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}
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else
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{
|
|
BIO_printf(bio_out, "[ unavailable ]\n");
|
|
if(test_avail_noise)
|
|
ERR_print_errors_fp(stdout);
|
|
ERR_clear_error();
|
|
}
|
|
}
|
|
if((verbose > 0) && !util_verbose(e, verbose, bio_out, indent))
|
|
goto end;
|
|
ENGINE_free(e);
|
|
}
|
|
else
|
|
ERR_print_errors(bio_err);
|
|
}
|
|
|
|
ret=0;
|
|
end:
|
|
|
|
ERR_print_errors(bio_err);
|
|
sk_pop_free(engines, identity);
|
|
sk_pop_free(pre_cmds, identity);
|
|
sk_pop_free(post_cmds, identity);
|
|
if (bio_out != NULL) BIO_free_all(bio_out);
|
|
apps_shutdown();
|
|
OPENSSL_EXIT(ret);
|
|
}
|
|
#else
|
|
|
|
# if PEDANTIC
|
|
static void *dummy=&dummy;
|
|
# endif
|
|
|
|
#endif
|