X-Git-Url: https://git.openssl.org/gitweb/?a=blobdiff_plain;f=apps%2Fengine.c;h=a8eed9af5c18cbe5bce2faa6ad8c70f851393ce8;hb=1f58c169119bce9f8f1f0b6f52b11ae28c0d01ed;hp=b320db6c8f9bfebcf753e4ce2c2dec145bab81ed;hpb=cf1b7d96647d55e533f779e476e3d4371f40445a;p=openssl.git

diff --git a/apps/engine.c b/apps/engine.c
index b320db6c8f..a8eed9af5c 100644
--- a/apps/engine.c
+++ b/apps/engine.c
@@ -1,6 +1,7 @@
-/* apps/engine.c -*- mode: C; c-file-style: "eay" -*- */
-/* Written by Richard Levitte <richard@levitte.org> for the OpenSSL
- * project 2000.
+/* apps/engine.c */
+/*
+ * Written by Richard Levitte <richard@levitte.org> for the OpenSSL project
+ * 2000.
  */
 /* ====================================================================
  * Copyright (c) 2000 The OpenSSL Project.  All rights reserved.
@@ -10,7 +11,7 @@
  * are met:
  *
  * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer. 
+ *    notice, this list of conditions and the following disclaimer.
  *
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in
@@ -60,184 +61,455 @@
 #include <stdlib.h>
 #include <string.h>
 #ifdef OPENSSL_NO_STDIO
-#define APPS_WIN16
+# define APPS_WIN16
 #endif
 #include "apps.h"
 #include <openssl/err.h>
-#include <openssl/engine.h>
-#include <openssl/ssl.h>
-
-#undef PROG
-#define PROG	engine_main
-
-static char *engine_usage[]={
-"usage: engine opts [engine ...]\n",
-" -v          - verbose mode, a textual listing of the engines in OpenSSL\n",
-" -c          - for each engine, also list the capabilities\n",
-" -t          - for each engine, check that they are really available\n",
-NULL
+#ifndef OPENSSL_NO_ENGINE
+# include <openssl/engine.h>
+# include <openssl/ssl.h>
+
+# undef PROG
+# define PROG    engine_main
+
+static const char *engine_usage[] = {
+    "usage: engine opts [engine ...]\n",
+    " -v[v[v[v]]] - verbose mode, for each engine, list its 'control commands'\n",
+    "               -vv will additionally display each command's description\n",
+    "               -vvv will also add the input flags for each command\n",
+    "               -vvvv will also show internal input flags\n",
+    " -c          - for each engine, also list the capabilities\n",
+    " -t[t]       - for each engine, check that they are really available\n",
+    "               -tt will display error trace for unavailable engines\n",
+    " -pre <cmd>  - runs command 'cmd' against the ENGINE before any attempts\n",
+    "               to load it (if -t is used)\n",
+    " -post <cmd> - runs command 'cmd' against the ENGINE after loading it\n",
+    "               (only used if -t is also provided)\n",
+    " NB: -pre and -post will be applied to all ENGINEs supplied on the command\n",
+    " line, or all supported ENGINEs if none are specified.\n",
+    " Eg. '-pre \"SO_PATH:/lib/libdriver.so\"' calls command \"SO_PATH\" with\n",
+    " argument \"/lib/libdriver.so\".\n",
+    NULL
 };
 
-static void identity(void *ptr)
-	{
-	return;
-	}
+static void identity(char *ptr)
+{
+    return;
+}
+
+static int append_buf(char **buf, const char *s, int *size, int step)
+{
+    if (*buf == NULL) {
+        *size = step;
+        *buf = OPENSSL_malloc(*size);
+        if (*buf == NULL)
+            return 0;
+        **buf = '\0';
+    }
+
+    if (strlen(*buf) + strlen(s) >= (unsigned int)*size) {
+        char *p = *buf;
+
+        *size += step;
+        *buf = OPENSSL_realloc(*buf, *size);
+        if (*buf == NULL) {
+            OPENSSL_free(p);
+            return 0;
+        }
+    }
+
+    if (**buf != '\0')
+        BUF_strlcat(*buf, ", ", *size);
+    BUF_strlcat(*buf, s, *size);
 
-static int append_buf(char **buf, char *s, int *size, int step)
-	{
-	int l = strlen(s);
+    return 1;
+}
 
-	if (*buf == NULL)
-		{
-		*size = step;
-		*buf = OPENSSL_malloc(*size);
-		if (*buf == NULL)
-			return 0;
-		**buf = '\0';
-		}
+static int util_flags(BIO *bio_out, unsigned int flags, const char *indent)
+{
+    int started = 0, err = 0;
+    /* Indent before displaying input flags */
+    BIO_printf(bio_out, "%s%s(input flags): ", indent, indent);
+    if (flags == 0) {
+        BIO_printf(bio_out, "<no flags>\n");
+        return 1;
+    }
+    /*
+     * If the object is internal, mark it in a way that shows instead of
+     * having it part of all the other flags, even if it really is.
+     */
+    if (flags & ENGINE_CMD_FLAG_INTERNAL) {
+        BIO_printf(bio_out, "[Internal] ");
+    }
 
-	if (**buf != '\0')
-		l += 2;		/* ", " */
+    if (flags & ENGINE_CMD_FLAG_NUMERIC) {
+        BIO_printf(bio_out, "NUMERIC");
+        started = 1;
+    }
+    /*
+     * Now we check that no combinations of the mutually exclusive NUMERIC,
+     * STRING, and NO_INPUT flags have been used. Future flags that can be
+     * OR'd together with these would need to added after these to preserve
+     * the testing logic.
+     */
+    if (flags & ENGINE_CMD_FLAG_STRING) {
+        if (started) {
+            BIO_printf(bio_out, "|");
+            err = 1;
+        }
+        BIO_printf(bio_out, "STRING");
+        started = 1;
+    }
+    if (flags & ENGINE_CMD_FLAG_NO_INPUT) {
+        if (started) {
+            BIO_printf(bio_out, "|");
+            err = 1;
+        }
+        BIO_printf(bio_out, "NO_INPUT");
+        started = 1;
+    }
+    /* Check for unknown flags */
+    flags = flags & ~ENGINE_CMD_FLAG_NUMERIC &
+        ~ENGINE_CMD_FLAG_STRING &
+        ~ENGINE_CMD_FLAG_NO_INPUT & ~ENGINE_CMD_FLAG_INTERNAL;
+    if (flags) {
+        if (started)
+            BIO_printf(bio_out, "|");
+        BIO_printf(bio_out, "<0x%04X>", flags);
+    }
+    if (err)
+        BIO_printf(bio_out, "  <illegal flags!>");
+    BIO_printf(bio_out, "\n");
+    return 1;
+}
 
-	if (strlen(*buf) + strlen(s) >= (unsigned int)*size)
-		{
-		*size += step;
-		*buf = OPENSSL_realloc(*buf, *size);
-		}
+static int util_verbose(ENGINE *e, int verbose, BIO *bio_out,
+                        const char *indent)
+{
+    static const int line_wrap = 78;
+    int num;
+    int ret = 0;
+    char *name = NULL;
+    char *desc = NULL;
+    int flags;
+    int xpos = 0;
+    STACK_OF(OPENSSL_STRING) *cmds = NULL;
+    if (!ENGINE_ctrl(e, ENGINE_CTRL_HAS_CTRL_FUNCTION, 0, NULL, NULL) ||
+        ((num = ENGINE_ctrl(e, ENGINE_CTRL_GET_FIRST_CMD_TYPE,
+                            0, NULL, NULL)) <= 0)) {
+# if 0
+        BIO_printf(bio_out, "%s<no control commands>\n", indent);
+# endif
+        return 1;
+    }
 
-	if (*buf == NULL)
-		return 0;
+    cmds = sk_OPENSSL_STRING_new_null();
 
-	if (**buf != '\0')
-		strcat(*buf, ", ");
-	strcat(*buf, s);
+    if (!cmds)
+        goto err;
+    do {
+        int len;
+        /* Get the command input flags */
+        if ((flags = ENGINE_ctrl(e, ENGINE_CTRL_GET_CMD_FLAGS, num,
+                                 NULL, NULL)) < 0)
+            goto err;
+        if (!(flags & ENGINE_CMD_FLAG_INTERNAL) || verbose >= 4) {
+            /* Get the command name */
+            if ((len = ENGINE_ctrl(e, ENGINE_CTRL_GET_NAME_LEN_FROM_CMD, num,
+                                   NULL, NULL)) <= 0)
+                goto err;
+            if ((name = OPENSSL_malloc(len + 1)) == NULL)
+                goto err;
+            if (ENGINE_ctrl(e, ENGINE_CTRL_GET_NAME_FROM_CMD, num, name,
+                            NULL) <= 0)
+                goto err;
+            /* Get the command description */
+            if ((len = ENGINE_ctrl(e, ENGINE_CTRL_GET_DESC_LEN_FROM_CMD, num,
+                                   NULL, NULL)) < 0)
+                goto err;
+            if (len > 0) {
+                if ((desc = OPENSSL_malloc(len + 1)) == NULL)
+                    goto err;
+                if (ENGINE_ctrl(e, ENGINE_CTRL_GET_DESC_FROM_CMD, num, desc,
+                                NULL) <= 0)
+                    goto err;
+            }
+            /* Now decide on the output */
+            if (xpos == 0)
+                /* Do an indent */
+                xpos = BIO_puts(bio_out, indent);
+            else
+                /* Otherwise prepend a ", " */
+                xpos += BIO_printf(bio_out, ", ");
+            if (verbose == 1) {
+                /*
+                 * We're just listing names, comma-delimited
+                 */
+                if ((xpos > (int)strlen(indent)) &&
+                    (xpos + (int)strlen(name) > line_wrap)) {
+                    BIO_printf(bio_out, "\n");
+                    xpos = BIO_puts(bio_out, indent);
+                }
+                xpos += BIO_printf(bio_out, "%s", name);
+            } else {
+                /* We're listing names plus descriptions */
+                BIO_printf(bio_out, "%s: %s\n", name,
+                           (desc == NULL) ? "<no description>" : desc);
+                /* ... and sometimes input flags */
+                if ((verbose >= 3) && !util_flags(bio_out, flags, indent))
+                    goto err;
+                xpos = 0;
+            }
+        }
+        OPENSSL_free(name);
+        name = NULL;
+        if (desc) {
+            OPENSSL_free(desc);
+            desc = NULL;
+        }
+        /* Move to the next command */
+        num = ENGINE_ctrl(e, ENGINE_CTRL_GET_NEXT_CMD_TYPE, num, NULL, NULL);
+    } while (num > 0);
+    if (xpos > 0)
+        BIO_printf(bio_out, "\n");
+    ret = 1;
+ err:
+    if (cmds)
+        sk_OPENSSL_STRING_pop_free(cmds, identity);
+    if (name)
+        OPENSSL_free(name);
+    if (desc)
+        OPENSSL_free(desc);
+    return ret;
+}
 
-	return 1;
-	}
+static void util_do_cmds(ENGINE *e, STACK_OF(OPENSSL_STRING) *cmds,
+                         BIO *bio_out, const char *indent)
+{
+    int loop, res, num = sk_OPENSSL_STRING_num(cmds);
+
+    if (num < 0) {
+        BIO_printf(bio_out, "[Error]: internal stack error\n");
+        return;
+    }
+    for (loop = 0; loop < num; loop++) {
+        char buf[256];
+        const char *cmd, *arg;
+        cmd = sk_OPENSSL_STRING_value(cmds, loop);
+        res = 1;                /* assume success */
+        /* Check if this command has no ":arg" */
+        if ((arg = strstr(cmd, ":")) == NULL) {
+            if (!ENGINE_ctrl_cmd_string(e, cmd, NULL, 0))
+                res = 0;
+        } else {
+            if ((int)(arg - cmd) > 254) {
+                BIO_printf(bio_out, "[Error]: command name too long\n");
+                return;
+            }
+            memcpy(buf, cmd, (int)(arg - cmd));
+            buf[arg - cmd] = '\0';
+            arg++;              /* Move past the ":" */
+            /* Call the command with the argument */
+            if (!ENGINE_ctrl_cmd_string(e, buf, arg, 0))
+                res = 0;
+        }
+        if (res)
+            BIO_printf(bio_out, "[Success]: %s\n", cmd);
+        else {
+            BIO_printf(bio_out, "[Failure]: %s\n", cmd);
+            ERR_print_errors(bio_out);
+        }
+    }
+}
 
 int MAIN(int, char **);
 
 int MAIN(int argc, char **argv)
-	{
-	int ret=1,i;
-	char **pp;
-	int verbose=0, list_cap=0, test_avail=0;
-	ENGINE *e;
-	STACK *engines = sk_new_null();
-	int badops=0;
-	BIO *bio_out=NULL;
-
-	apps_startup();
-	SSL_load_error_strings();
-
-	if (bio_err == NULL)
-		bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
-	bio_out=BIO_new_fp(stdout,BIO_NOCLOSE);
-#ifdef VMS
-	{
-	BIO *tmpbio = BIO_new(BIO_f_linebuffer());
-	bio_out = BIO_push(tmpbio, bio_out);
-	}
-#endif
+{
+    int ret = 1, i;
+    const char **pp;
+    int verbose = 0, list_cap = 0, test_avail = 0, test_avail_noise = 0;
+    ENGINE *e;
+    STACK_OF(OPENSSL_STRING) *engines = sk_OPENSSL_STRING_new_null();
+    STACK_OF(OPENSSL_STRING) *pre_cmds = sk_OPENSSL_STRING_new_null();
+    STACK_OF(OPENSSL_STRING) *post_cmds = sk_OPENSSL_STRING_new_null();
+    int badops = 1;
+    BIO *bio_out = NULL;
+    const char *indent = "     ";
+
+    apps_startup();
+    SSL_load_error_strings();
+
+    if (bio_err == NULL)
+        bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
+
+    if (!load_config(bio_err, NULL))
+        goto end;
+    bio_out = BIO_new_fp(stdout, BIO_NOCLOSE);
+# ifdef OPENSSL_SYS_VMS
+    {
+        BIO *tmpbio = BIO_new(BIO_f_linebuffer());
+        bio_out = BIO_push(tmpbio, bio_out);
+    }
+# endif
+
+    argc--;
+    argv++;
+    while (argc >= 1) {
+        if (strncmp(*argv, "-v", 2) == 0) {
+            if (strspn(*argv + 1, "v") < strlen(*argv + 1))
+                goto skip_arg_loop;
+            if ((verbose = strlen(*argv + 1)) > 4)
+                goto skip_arg_loop;
+        } else if (strcmp(*argv, "-c") == 0)
+            list_cap = 1;
+        else if (strncmp(*argv, "-t", 2) == 0) {
+            test_avail = 1;
+            if (strspn(*argv + 1, "t") < strlen(*argv + 1))
+                goto skip_arg_loop;
+            if ((test_avail_noise = strlen(*argv + 1) - 1) > 1)
+                goto skip_arg_loop;
+        } else if (strcmp(*argv, "-pre") == 0) {
+            argc--;
+            argv++;
+            if (argc == 0)
+                goto skip_arg_loop;
+            sk_OPENSSL_STRING_push(pre_cmds, *argv);
+        } else if (strcmp(*argv, "-post") == 0) {
+            argc--;
+            argv++;
+            if (argc == 0)
+                goto skip_arg_loop;
+            sk_OPENSSL_STRING_push(post_cmds, *argv);
+        } else if ((strncmp(*argv, "-h", 2) == 0) ||
+                   (strcmp(*argv, "-?") == 0))
+            goto skip_arg_loop;
+        else
+            sk_OPENSSL_STRING_push(engines, *argv);
+        argc--;
+        argv++;
+    }
+    /* Looks like everything went OK */
+    badops = 0;
+ skip_arg_loop:
 
-	argc--;
-	argv++;
-	while (argc >= 1)
-		{
-		if (strcmp(*argv,"-v") == 0)
-			verbose=1;
-		else if (strcmp(*argv,"-c") == 0)
-			list_cap=1;
-		else if (strcmp(*argv,"-t") == 0)
-			test_avail=1;
-		else if ((strncmp(*argv,"-h",2) == 0) ||
-			 (strcmp(*argv,"-?") == 0))
-			{
-			badops=1;
-			break;
-			}
-		else
-			{
-			sk_push(engines,*argv);
-			}
-		argc--;
-		argv++;
-		}
-
-	if (badops)
-		{
-		for (pp=engine_usage; (*pp != NULL); pp++)
-			BIO_printf(bio_err,"%s",*pp);
-		goto end;
-		}
-
-	if (sk_num(engines) == 0)
-		{
-		for(e = ENGINE_get_first(); e != NULL; e = ENGINE_get_next(e))
-			{
-			sk_push(engines,(char *)ENGINE_get_id(e));
-			}
-		}
-
-	for (i=0; i<sk_num(engines); i++)
-		{
-		const char *id = sk_value(engines,i);
-		if ((e = ENGINE_by_id(id)) != NULL)
-			{
-			const char *name = ENGINE_get_name(e);
-			BIO_printf(bio_out, "%s (%s)", name, id);
-			if (list_cap || test_avail)
-				BIO_printf(bio_out, ":");
-			if (test_avail)
-				{
-				if (ENGINE_init(e))
-					{
-					BIO_printf(bio_out, " available");
-					ENGINE_finish(e);
-					}
-				else
-					{
-					BIO_printf(bio_out, " unavailable");
-					ERR_clear_error();
-					}
-				}
-			if (list_cap)
-				{
-				int cap_size = 256;
-				char *cap_buf = NULL;
-
-				if (ENGINE_get_RSA(e) != NULL
-					&& !append_buf(&cap_buf, "RSA",
-						&cap_size, 256))
-					goto end;
-				if (ENGINE_get_DSA(e) != NULL
-					&& !append_buf(&cap_buf, "DSA",
-						&cap_size, 256))
-					goto end;
-				if (ENGINE_get_DH(e) != NULL
-					&& !append_buf(&cap_buf, "DH",
-						&cap_size, 256))
-					goto end;
-				if (ENGINE_get_RAND(e) != NULL
-					&& !append_buf(&cap_buf, "RAND",
-						&cap_size, 256))
-					goto end;
-
-				if (*cap_buf != '\0')
-					BIO_printf(bio_out, " [%s]", cap_buf);
-
-				OPENSSL_free(cap_buf);
-				}
-			BIO_printf(bio_out, "\n");
-			}
-		else
-			ERR_print_errors(bio_err);
-		}
-
-	ret=0;
-end:
-	ERR_print_errors(bio_err);
-	sk_pop_free(engines, identity);
-	if (bio_out != NULL) BIO_free_all(bio_out);
-	EXIT(ret);
-	}
+    if (badops) {
+        for (pp = engine_usage; (*pp != NULL); pp++)
+            BIO_printf(bio_err, "%s", *pp);
+        goto end;
+    }
+
+    if (sk_OPENSSL_STRING_num(engines) == 0) {
+        for (e = ENGINE_get_first(); e != NULL; e = ENGINE_get_next(e)) {
+            sk_OPENSSL_STRING_push(engines, (char *)ENGINE_get_id(e));
+        }
+    }
+
+    for (i = 0; i < sk_OPENSSL_STRING_num(engines); i++) {
+        const char *id = sk_OPENSSL_STRING_value(engines, i);
+        if ((e = ENGINE_by_id(id)) != NULL) {
+            const char *name = ENGINE_get_name(e);
+            /*
+             * Do "id" first, then "name". Easier to auto-parse.
+             */
+            BIO_printf(bio_out, "(%s) %s\n", id, name);
+            util_do_cmds(e, pre_cmds, bio_out, indent);
+            if (strcmp(ENGINE_get_id(e), id) != 0) {
+                BIO_printf(bio_out, "Loaded: (%s) %s\n",
+                           ENGINE_get_id(e), ENGINE_get_name(e));
+            }
+            if (list_cap) {
+                int cap_size = 256;
+                char *cap_buf = NULL;
+                int k, n;
+                const int *nids;
+                ENGINE_CIPHERS_PTR fn_c;
+                ENGINE_DIGESTS_PTR fn_d;
+                ENGINE_PKEY_METHS_PTR fn_pk;
+
+                if (ENGINE_get_RSA(e) != NULL
+                    && !append_buf(&cap_buf, "RSA", &cap_size, 256))
+                    goto end;
+                if (ENGINE_get_DSA(e) != NULL
+                    && !append_buf(&cap_buf, "DSA", &cap_size, 256))
+                    goto end;
+                if (ENGINE_get_DH(e) != NULL
+                    && !append_buf(&cap_buf, "DH", &cap_size, 256))
+                    goto end;
+                if (ENGINE_get_RAND(e) != NULL
+                    && !append_buf(&cap_buf, "RAND", &cap_size, 256))
+                    goto end;
+
+                fn_c = ENGINE_get_ciphers(e);
+                if (!fn_c)
+                    goto skip_ciphers;
+                n = fn_c(e, NULL, &nids, 0);
+                for (k = 0; k < n; ++k)
+                    if (!append_buf(&cap_buf,
+                                    OBJ_nid2sn(nids[k]), &cap_size, 256))
+                        goto end;
+
+ skip_ciphers:
+                fn_d = ENGINE_get_digests(e);
+                if (!fn_d)
+                    goto skip_digests;
+                n = fn_d(e, NULL, &nids, 0);
+                for (k = 0; k < n; ++k)
+                    if (!append_buf(&cap_buf,
+                                    OBJ_nid2sn(nids[k]), &cap_size, 256))
+                        goto end;
+
+ skip_digests:
+                fn_pk = ENGINE_get_pkey_meths(e);
+                if (!fn_pk)
+                    goto skip_pmeths;
+                n = fn_pk(e, NULL, &nids, 0);
+                for (k = 0; k < n; ++k)
+                    if (!append_buf(&cap_buf,
+                                    OBJ_nid2sn(nids[k]), &cap_size, 256))
+                        goto end;
+ skip_pmeths:
+                if (cap_buf && (*cap_buf != '\0'))
+                    BIO_printf(bio_out, " [%s]\n", cap_buf);
+
+                OPENSSL_free(cap_buf);
+            }
+            if (test_avail) {
+                BIO_printf(bio_out, "%s", indent);
+                if (ENGINE_init(e)) {
+                    BIO_printf(bio_out, "[ available ]\n");
+                    util_do_cmds(e, post_cmds, bio_out, indent);
+                    ENGINE_finish(e);
+                } else {
+                    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_OPENSSL_STRING_pop_free(engines, identity);
+    sk_OPENSSL_STRING_pop_free(pre_cmds, identity);
+    sk_OPENSSL_STRING_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