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      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  */
    303 extern const char OPT_HELP_STR[];
    304 extern const char OPT_MORE_STR[];
    305 extern const char OPT_SECTION_STR[];
    306 extern const char OPT_PARAM_STR[];
    307 
    308 typedef 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  */
    329 typedef 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 
    356 const char *opt_path_end(const char *filename);
    357 char *opt_init(int ac, char **av, const OPTIONS * o);
    358 char *opt_progname(const char *argv0);
    359 char *opt_appname(const char *argv0);
    360 char *opt_getprog(void);
    361 void opt_help(const OPTIONS * list);
    362 
    363 void opt_begin(void);
    364 int opt_next(void);
    365 char *opt_flag(void);
    366 char *opt_arg(void);
    367 char *opt_unknown(void);
    368 int opt_cipher(const char *name, EVP_CIPHER **cipherp);
    369 int opt_cipher_any(const char *name, EVP_CIPHER **cipherp);
    370 int opt_cipher_silent(const char *name, EVP_CIPHER **cipherp);
    371 int opt_md(const char *name, EVP_MD **mdp);
    372 int opt_md_silent(const char *name, EVP_MD **mdp);
    373 
    374 int opt_int(const char *arg, int *result);
    375 int opt_int_arg(void);
    376 int opt_long(const char *arg, long *result);
    377 int opt_ulong(const char *arg, unsigned long *result);
    378 int opt_intmax(const char *arg, ossl_intmax_t *result);
    379 int opt_uintmax(const char *arg, ossl_uintmax_t *result);
    380 
    381 int opt_isdir(const char *name);
    382 int opt_format(const char *s, unsigned long flags, int *result);
    383 void print_format_error(int format, unsigned long flags);
    384 int opt_printf_stderr(const char *fmt, ...);
    385 int opt_string(const char *name, const char **options);
    386 int opt_pair(const char *arg, const OPT_PAIR * pairs, int *result);
    387 
    388 int opt_verify(int i, X509_VERIFY_PARAM *vpm);
    389 int opt_rand(int i);
    390 int opt_provider(int i);
    391 int opt_provider_option_given(void);
    392 
    393 char **opt_rest(void);
    394 int opt_num_rest(void);
    395 
    396 /* Returns non-zero if legacy paths are still available */
    397 int opt_legacy_okay(void);
    398 
    399 
    400 #endif /* OSSL_APPS_OPT_H */
    401