1/*
2 * Copyright 2018-2021 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License").  You may not use
5 * this file except in compliance with the License.  You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9#ifndef OSSL_APPS_OPT_H
10#define OSSL_APPS_OPT_H
11
12#include <sys/types.h>
13#include <openssl/e_os2.h>
14#include <openssl/types.h>
15#include <stdarg.h>
16
17#define OPT_COMMON OPT_ERR = -1, OPT_EOF = 0, OPT_HELP
18
19/*
20 * Common verification options.
21 */
22# define OPT_V_ENUM \
23        OPT_V__FIRST=2000, \
24        OPT_V_POLICY, OPT_V_PURPOSE, OPT_V_VERIFY_NAME, OPT_V_VERIFY_DEPTH, \
25        OPT_V_ATTIME, OPT_V_VERIFY_HOSTNAME, OPT_V_VERIFY_EMAIL, \
26        OPT_V_VERIFY_IP, OPT_V_IGNORE_CRITICAL, OPT_V_ISSUER_CHECKS, \
27        OPT_V_CRL_CHECK, OPT_V_CRL_CHECK_ALL, OPT_V_POLICY_CHECK, \
28        OPT_V_EXPLICIT_POLICY, OPT_V_INHIBIT_ANY, OPT_V_INHIBIT_MAP, \
29        OPT_V_X509_STRICT, OPT_V_EXTENDED_CRL, OPT_V_USE_DELTAS, \
30        OPT_V_POLICY_PRINT, OPT_V_CHECK_SS_SIG, OPT_V_TRUSTED_FIRST, \
31        OPT_V_SUITEB_128_ONLY, OPT_V_SUITEB_128, OPT_V_SUITEB_192, \
32        OPT_V_PARTIAL_CHAIN, OPT_V_NO_ALT_CHAINS, OPT_V_NO_CHECK_TIME, \
33        OPT_V_VERIFY_AUTH_LEVEL, OPT_V_ALLOW_PROXY_CERTS, \
34        OPT_V__LAST
35
36# define OPT_V_OPTIONS \
37        OPT_SECTION("Validation"), \
38        { "policy", OPT_V_POLICY, 's', "adds policy to the acceptable policy set"}, \
39        { "purpose", OPT_V_PURPOSE, 's', \
40            "certificate chain purpose"}, \
41        { "verify_name", OPT_V_VERIFY_NAME, 's', "verification policy name"}, \
42        { "verify_depth", OPT_V_VERIFY_DEPTH, 'n', \
43            "chain depth limit" }, \
44        { "auth_level", OPT_V_VERIFY_AUTH_LEVEL, 'n', \
45            "chain authentication security level" }, \
46        { "attime", OPT_V_ATTIME, 'M', "verification epoch time" }, \
47        { "verify_hostname", OPT_V_VERIFY_HOSTNAME, 's', \
48            "expected peer hostname" }, \
49        { "verify_email", OPT_V_VERIFY_EMAIL, 's', \
50            "expected peer email" }, \
51        { "verify_ip", OPT_V_VERIFY_IP, 's', \
52            "expected peer IP address" }, \
53        { "ignore_critical", OPT_V_IGNORE_CRITICAL, '-', \
54            "permit unhandled critical extensions"}, \
55        { "issuer_checks", OPT_V_ISSUER_CHECKS, '-', "(deprecated)"}, \
56        { "crl_check", OPT_V_CRL_CHECK, '-', "check leaf certificate revocation" }, \
57        { "crl_check_all", OPT_V_CRL_CHECK_ALL, '-', "check full chain revocation" }, \
58        { "policy_check", OPT_V_POLICY_CHECK, '-', "perform rfc5280 policy checks"}, \
59        { "explicit_policy", OPT_V_EXPLICIT_POLICY, '-', \
60            "set policy variable require-explicit-policy"}, \
61        { "inhibit_any", OPT_V_INHIBIT_ANY, '-', \
62            "set policy variable inhibit-any-policy"}, \
63        { "inhibit_map", OPT_V_INHIBIT_MAP, '-', \
64            "set policy variable inhibit-policy-mapping"}, \
65        { "x509_strict", OPT_V_X509_STRICT, '-', \
66            "disable certificate compatibility work-arounds"}, \
67        { "extended_crl", OPT_V_EXTENDED_CRL, '-', \
68            "enable extended CRL features"}, \
69        { "use_deltas", OPT_V_USE_DELTAS, '-', \
70            "use delta CRLs"}, \
71        { "policy_print", OPT_V_POLICY_PRINT, '-', \
72            "print policy processing diagnostics"}, \
73        { "check_ss_sig", OPT_V_CHECK_SS_SIG, '-', \
74            "check root CA self-signatures"}, \
75        { "trusted_first", OPT_V_TRUSTED_FIRST, '-', \
76            "search trust store first (default)" }, \
77        { "suiteB_128_only", OPT_V_SUITEB_128_ONLY, '-', "Suite B 128-bit-only mode"}, \
78        { "suiteB_128", OPT_V_SUITEB_128, '-', \
79            "Suite B 128-bit mode allowing 192-bit algorithms"}, \
80        { "suiteB_192", OPT_V_SUITEB_192, '-', "Suite B 192-bit-only mode" }, \
81        { "partial_chain", OPT_V_PARTIAL_CHAIN, '-', \
82            "accept chains anchored by intermediate trust-store CAs"}, \
83        { "no_alt_chains", OPT_V_NO_ALT_CHAINS, '-', "(deprecated)" }, \
84        { "no_check_time", OPT_V_NO_CHECK_TIME, '-', "ignore certificate validity time" }, \
85        { "allow_proxy_certs", OPT_V_ALLOW_PROXY_CERTS, '-', "allow the use of proxy certificates" }
86
87# define OPT_V_CASES \
88        OPT_V__FIRST: case OPT_V__LAST: break; \
89        case OPT_V_POLICY: \
90        case OPT_V_PURPOSE: \
91        case OPT_V_VERIFY_NAME: \
92        case OPT_V_VERIFY_DEPTH: \
93        case OPT_V_VERIFY_AUTH_LEVEL: \
94        case OPT_V_ATTIME: \
95        case OPT_V_VERIFY_HOSTNAME: \
96        case OPT_V_VERIFY_EMAIL: \
97        case OPT_V_VERIFY_IP: \
98        case OPT_V_IGNORE_CRITICAL: \
99        case OPT_V_ISSUER_CHECKS: \
100        case OPT_V_CRL_CHECK: \
101        case OPT_V_CRL_CHECK_ALL: \
102        case OPT_V_POLICY_CHECK: \
103        case OPT_V_EXPLICIT_POLICY: \
104        case OPT_V_INHIBIT_ANY: \
105        case OPT_V_INHIBIT_MAP: \
106        case OPT_V_X509_STRICT: \
107        case OPT_V_EXTENDED_CRL: \
108        case OPT_V_USE_DELTAS: \
109        case OPT_V_POLICY_PRINT: \
110        case OPT_V_CHECK_SS_SIG: \
111        case OPT_V_TRUSTED_FIRST: \
112        case OPT_V_SUITEB_128_ONLY: \
113        case OPT_V_SUITEB_128: \
114        case OPT_V_SUITEB_192: \
115        case OPT_V_PARTIAL_CHAIN: \
116        case OPT_V_NO_ALT_CHAINS: \
117        case OPT_V_NO_CHECK_TIME: \
118        case OPT_V_ALLOW_PROXY_CERTS
119
120/*
121 * Common "extended validation" options.
122 */
123# define OPT_X_ENUM \
124        OPT_X__FIRST=1000, \
125        OPT_X_KEY, OPT_X_CERT, OPT_X_CHAIN, OPT_X_CHAIN_BUILD, \
126        OPT_X_CERTFORM, OPT_X_KEYFORM, \
127        OPT_X__LAST
128
129# define OPT_X_OPTIONS \
130        OPT_SECTION("Extended certificate"), \
131        { "xkey", OPT_X_KEY, '<', "key for Extended certificates"}, \
132        { "xcert", OPT_X_CERT, '<', "cert for Extended certificates"}, \
133        { "xchain", OPT_X_CHAIN, '<', "chain for Extended certificates"}, \
134        { "xchain_build", OPT_X_CHAIN_BUILD, '-', \
135            "build certificate chain for the extended certificates"}, \
136        { "xcertform", OPT_X_CERTFORM, 'F', \
137            "format of Extended certificate (PEM/DER/P12); has no effect" }, \
138        { "xkeyform", OPT_X_KEYFORM, 'F', \
139            "format of Extended certificate's key (DER/PEM/P12); has no effect"}
140
141# define OPT_X_CASES \
142        OPT_X__FIRST: case OPT_X__LAST: break; \
143        case OPT_X_KEY: \
144        case OPT_X_CERT: \
145        case OPT_X_CHAIN: \
146        case OPT_X_CHAIN_BUILD: \
147        case OPT_X_CERTFORM: \
148        case OPT_X_KEYFORM
149
150/*
151 * Common SSL options.
152 * Any changes here must be coordinated with ../ssl/ssl_conf.c
153 */
154# define OPT_S_ENUM \
155        OPT_S__FIRST=3000, \
156        OPT_S_NOSSL3, OPT_S_NOTLS1, OPT_S_NOTLS1_1, OPT_S_NOTLS1_2, \
157        OPT_S_NOTLS1_3, OPT_S_BUGS, OPT_S_NO_COMP, OPT_S_NOTICKET, \
158        OPT_S_SERVERPREF, OPT_S_LEGACYRENEG, OPT_S_CLIENTRENEG, \
159        OPT_S_LEGACYCONN, \
160        OPT_S_ONRESUMP, OPT_S_NOLEGACYCONN, OPT_S_ALLOW_NO_DHE_KEX, \
161        OPT_S_PRIORITIZE_CHACHA, \
162        OPT_S_STRICT, OPT_S_SIGALGS, OPT_S_CLIENTSIGALGS, OPT_S_GROUPS, \
163        OPT_S_CURVES, OPT_S_NAMEDCURVE, OPT_S_CIPHER, OPT_S_CIPHERSUITES, \
164        OPT_S_RECORD_PADDING, OPT_S_DEBUGBROKE, OPT_S_COMP, \
165        OPT_S_MINPROTO, OPT_S_MAXPROTO, \
166        OPT_S_NO_RENEGOTIATION, OPT_S_NO_MIDDLEBOX, OPT_S_NO_ETM, OPT_S__LAST
167
168# define OPT_S_OPTIONS \
169        OPT_SECTION("TLS/SSL"), \
170        {"no_ssl3", OPT_S_NOSSL3, '-',"Just disable SSLv3" }, \
171        {"no_tls1", OPT_S_NOTLS1, '-', "Just disable TLSv1"}, \
172        {"no_tls1_1", OPT_S_NOTLS1_1, '-', "Just disable TLSv1.1" }, \
173        {"no_tls1_2", OPT_S_NOTLS1_2, '-', "Just disable TLSv1.2"}, \
174        {"no_tls1_3", OPT_S_NOTLS1_3, '-', "Just disable TLSv1.3"}, \
175        {"bugs", OPT_S_BUGS, '-', "Turn on SSL bug compatibility"}, \
176        {"no_comp", OPT_S_NO_COMP, '-', "Disable SSL/TLS compression (default)" }, \
177        {"comp", OPT_S_COMP, '-', "Use SSL/TLS-level compression" }, \
178        {"no_ticket", OPT_S_NOTICKET, '-', \
179            "Disable use of TLS session tickets"}, \
180        {"serverpref", OPT_S_SERVERPREF, '-', "Use server's cipher preferences"}, \
181        {"legacy_renegotiation", OPT_S_LEGACYRENEG, '-', \
182            "Enable use of legacy renegotiation (dangerous)"}, \
183        {"client_renegotiation", OPT_S_CLIENTRENEG, '-', \
184            "Allow client-initiated renegotiation" }, \
185        {"no_renegotiation", OPT_S_NO_RENEGOTIATION, '-', \
186            "Disable all renegotiation."}, \
187        {"legacy_server_connect", OPT_S_LEGACYCONN, '-', \
188            "Allow initial connection to servers that don't support RI"}, \
189        {"no_resumption_on_reneg", OPT_S_ONRESUMP, '-', \
190            "Disallow session resumption on renegotiation"}, \
191        {"no_legacy_server_connect", OPT_S_NOLEGACYCONN, '-', \
192            "Disallow initial connection to servers that don't support RI"}, \
193        {"allow_no_dhe_kex", OPT_S_ALLOW_NO_DHE_KEX, '-', \
194            "In TLSv1.3 allow non-(ec)dhe based key exchange on resumption"}, \
195        {"prioritize_chacha", OPT_S_PRIORITIZE_CHACHA, '-', \
196            "Prioritize ChaCha ciphers when preferred by clients"}, \
197        {"strict", OPT_S_STRICT, '-', \
198            "Enforce strict certificate checks as per TLS standard"}, \
199        {"sigalgs", OPT_S_SIGALGS, 's', \
200            "Signature algorithms to support (colon-separated list)" }, \
201        {"client_sigalgs", OPT_S_CLIENTSIGALGS, 's', \
202            "Signature algorithms to support for client certificate" \
203            " authentication (colon-separated list)" }, \
204        {"groups", OPT_S_GROUPS, 's', \
205            "Groups to advertise (colon-separated list)" }, \
206        {"curves", OPT_S_CURVES, 's', \
207            "Groups to advertise (colon-separated list)" }, \
208        {"named_curve", OPT_S_NAMEDCURVE, 's', \
209            "Elliptic curve used for ECDHE (server-side only)" }, \
210        {"cipher", OPT_S_CIPHER, 's', "Specify TLSv1.2 and below cipher list to be used"}, \
211        {"ciphersuites", OPT_S_CIPHERSUITES, 's', "Specify TLSv1.3 ciphersuites to be used"}, \
212        {"min_protocol", OPT_S_MINPROTO, 's', "Specify the minimum protocol version to be used"}, \
213        {"max_protocol", OPT_S_MAXPROTO, 's', "Specify the maximum protocol version to be used"}, \
214        {"record_padding", OPT_S_RECORD_PADDING, 's', \
215            "Block size to pad TLS 1.3 records to."}, \
216        {"debug_broken_protocol", OPT_S_DEBUGBROKE, '-', \
217            "Perform all sorts of protocol violations for testing purposes"}, \
218        {"no_middlebox", OPT_S_NO_MIDDLEBOX, '-', \
219            "Disable TLSv1.3 middlebox compat mode" }, \
220        {"no_etm", OPT_S_NO_ETM, '-', \
221            "Disable Encrypt-then-Mac extension"}
222
223# define OPT_S_CASES \
224        OPT_S__FIRST: case OPT_S__LAST: break; \
225        case OPT_S_NOSSL3: \
226        case OPT_S_NOTLS1: \
227        case OPT_S_NOTLS1_1: \
228        case OPT_S_NOTLS1_2: \
229        case OPT_S_NOTLS1_3: \
230        case OPT_S_BUGS: \
231        case OPT_S_NO_COMP: \
232        case OPT_S_COMP: \
233        case OPT_S_NOTICKET: \
234        case OPT_S_SERVERPREF: \
235        case OPT_S_LEGACYRENEG: \
236        case OPT_S_CLIENTRENEG: \
237        case OPT_S_LEGACYCONN: \
238        case OPT_S_ONRESUMP: \
239        case OPT_S_NOLEGACYCONN: \
240        case OPT_S_ALLOW_NO_DHE_KEX: \
241        case OPT_S_PRIORITIZE_CHACHA: \
242        case OPT_S_STRICT: \
243        case OPT_S_SIGALGS: \
244        case OPT_S_CLIENTSIGALGS: \
245        case OPT_S_GROUPS: \
246        case OPT_S_CURVES: \
247        case OPT_S_NAMEDCURVE: \
248        case OPT_S_CIPHER: \
249        case OPT_S_CIPHERSUITES: \
250        case OPT_S_RECORD_PADDING: \
251        case OPT_S_NO_RENEGOTIATION: \
252        case OPT_S_MINPROTO: \
253        case OPT_S_MAXPROTO: \
254        case OPT_S_DEBUGBROKE: \
255        case OPT_S_NO_MIDDLEBOX: \
256        case OPT_S_NO_ETM
257
258#define IS_NO_PROT_FLAG(o) \
259 (o == OPT_S_NOSSL3 || o == OPT_S_NOTLS1 || o == OPT_S_NOTLS1_1 \
260  || o == OPT_S_NOTLS1_2 || o == OPT_S_NOTLS1_3)
261
262/*
263 * Random state options.
264 */
265# define OPT_R_ENUM \
266        OPT_R__FIRST=1500, OPT_R_RAND, OPT_R_WRITERAND, OPT_R__LAST
267
268# define OPT_R_OPTIONS \
269    OPT_SECTION("Random state"), \
270    {"rand", OPT_R_RAND, 's', "Load the given file(s) into the random number generator"}, \
271    {"writerand", OPT_R_WRITERAND, '>', "Write random data to the specified file"}
272
273# define OPT_R_CASES \
274        OPT_R__FIRST: case OPT_R__LAST: break; \
275        case OPT_R_RAND: case OPT_R_WRITERAND
276
277/*
278 * Provider options.
279 */
280# define OPT_PROV_ENUM \
281        OPT_PROV__FIRST=1600, \
282        OPT_PROV_PROVIDER, OPT_PROV_PROVIDER_PATH, OPT_PROV_PROPQUERY, \
283        OPT_PROV__LAST
284
285# define OPT_CONFIG_OPTION \
286        { "config", OPT_CONFIG, '<', "Load a configuration file (this may load modules)" }
287
288# define OPT_PROV_OPTIONS \
289        OPT_SECTION("Provider"), \
290        { "provider-path", OPT_PROV_PROVIDER_PATH, 's', "Provider load path (must be before 'provider' argument if required)" }, \
291        { "provider", OPT_PROV_PROVIDER, 's', "Provider to load (can be specified multiple times)" }, \
292        { "propquery", OPT_PROV_PROPQUERY, 's', "Property query used when fetching algorithms" }
293
294# define OPT_PROV_CASES \
295        OPT_PROV__FIRST: case OPT_PROV__LAST: break; \
296        case OPT_PROV_PROVIDER: \
297        case OPT_PROV_PROVIDER_PATH: \
298        case OPT_PROV_PROPQUERY
299
300/*
301 * Option parsing.
302 */
303extern const char OPT_HELP_STR[];
304extern const char OPT_MORE_STR[];
305extern const char OPT_SECTION_STR[];
306extern const char OPT_PARAM_STR[];
307
308typedef struct options_st {
309    const char *name;
310    int retval;
311    /*
312     * value type: - no value (also the value zero), n number, p positive
313     * number, u unsigned, l long, s string, < input file, > output file,
314     * f any format, F der/pem format, E der/pem/engine format identifier.
315     * l, n and u include zero; p does not.
316     */
317    int valtype;
318    const char *helpstr;
319} OPTIONS;
320/* Special retval values: */
321#define OPT_PARAM 0 /* same as OPT_EOF usually defined in apps */
322#define OPT_DUP -2 /* marks duplicate occurrence of option in help output */
323
324/*
325 * A string/int pairing; widely use for option value lookup, hence the
326 * name OPT_PAIR. But that name is misleading in s_cb.c, so we also use
327 * the "generic" name STRINT_PAIR.
328 */
329typedef struct string_int_pair_st {
330    const char *name;
331    int retval;
332} OPT_PAIR, STRINT_PAIR;
333
334/* Flags to pass into opt_format; see FORMAT_xxx, below. */
335# define OPT_FMT_PEMDER          (1L <<  1)
336# define OPT_FMT_PKCS12          (1L <<  2)
337# define OPT_FMT_SMIME           (1L <<  3)
338# define OPT_FMT_ENGINE          (1L <<  4)
339# define OPT_FMT_MSBLOB          (1L <<  5)
340/* (1L <<  6) was OPT_FMT_NETSCAPE, but wasn't used */
341# define OPT_FMT_NSS             (1L <<  7)
342# define OPT_FMT_TEXT            (1L <<  8)
343# define OPT_FMT_HTTP            (1L <<  9)
344# define OPT_FMT_PVK             (1L << 10)
345# define OPT_FMT_PDE     (OPT_FMT_PEMDER | OPT_FMT_ENGINE)
346# define OPT_FMT_PDS     (OPT_FMT_PEMDER | OPT_FMT_SMIME)
347# define OPT_FMT_ANY     ( \
348        OPT_FMT_PEMDER | OPT_FMT_PKCS12 | OPT_FMT_SMIME | \
349        OPT_FMT_ENGINE | OPT_FMT_MSBLOB | OPT_FMT_NSS   | \
350        OPT_FMT_TEXT   | OPT_FMT_HTTP   | OPT_FMT_PVK)
351
352/* Divide options into sections when displaying usage */
353#define OPT_SECTION(sec) { OPT_SECTION_STR, 1, '-', sec " options:\n" }
354#define OPT_PARAMETERS() { OPT_PARAM_STR, 1, '-', "Parameters:\n" }
355
356const char *opt_path_end(const char *filename);
357char *opt_init(int ac, char **av, const OPTIONS * o);
358char *opt_progname(const char *argv0);
359char *opt_appname(const char *argv0);
360char *opt_getprog(void);
361void opt_help(const OPTIONS * list);
362
363void opt_begin(void);
364int opt_next(void);
365char *opt_flag(void);
366char *opt_arg(void);
367char *opt_unknown(void);
368int opt_cipher(const char *name, EVP_CIPHER **cipherp);
369int opt_cipher_any(const char *name, EVP_CIPHER **cipherp);
370int opt_cipher_silent(const char *name, EVP_CIPHER **cipherp);
371int opt_md(const char *name, EVP_MD **mdp);
372int opt_md_silent(const char *name, EVP_MD **mdp);
373
374int opt_int(const char *arg, int *result);
375int opt_int_arg(void);
376int opt_long(const char *arg, long *result);
377int opt_ulong(const char *arg, unsigned long *result);
378int opt_intmax(const char *arg, ossl_intmax_t *result);
379int opt_uintmax(const char *arg, ossl_uintmax_t *result);
380
381int opt_isdir(const char *name);
382int opt_format(const char *s, unsigned long flags, int *result);
383void print_format_error(int format, unsigned long flags);
384int opt_printf_stderr(const char *fmt, ...);
385int opt_string(const char *name, const char **options);
386int opt_pair(const char *arg, const OPT_PAIR * pairs, int *result);
387
388int opt_verify(int i, X509_VERIFY_PARAM *vpm);
389int opt_rand(int i);
390int opt_provider(int i);
391int opt_provider_option_given(void);
392
393char **opt_rest(void);
394int opt_num_rest(void);
395
396/* Returns non-zero if legacy paths are still available */
397int opt_legacy_okay(void);
398
399
400#endif /* OSSL_APPS_OPT_H */
401