xref: /freebsd/crypto/openssl/apps/cmp.c (revision 4c9a0adad18263ec8725d9bfc5f560c6ad1da8bd)
1 /*
2  * Copyright 2007-2023 The OpenSSL Project Authors. All Rights Reserved.
3  * Copyright Nokia 2007-2019
4  * Copyright Siemens AG 2015-2019
5  *
6  * Licensed under the Apache License 2.0 (the "License").  You may not use
7  * this file except in compliance with the License.  You can obtain a copy
8  * in the file LICENSE in the source distribution or at
9  * https://www.openssl.org/source/license.html
10  */
11 
12 /* This app is disabled when OPENSSL_NO_CMP is defined. */
13 
14 #include <string.h>
15 #include <ctype.h>
16 
17 #include "apps.h"
18 #include "http_server.h"
19 #include "s_apps.h"
20 #include "progs.h"
21 
22 #include "cmp_mock_srv.h"
23 
24 /* tweaks needed due to missing unistd.h on Windows */
25 #if defined(_WIN32) && !defined(__BORLANDC__)
26 # define access _access
27 #endif
28 #ifndef F_OK
29 # define F_OK 0
30 #endif
31 
32 #include <openssl/ui.h>
33 #include <openssl/pkcs12.h>
34 #include <openssl/ssl.h>
35 
36 /* explicit #includes not strictly needed since implied by the above: */
37 #include <stdlib.h>
38 #include <openssl/cmp.h>
39 #include <openssl/cmp_util.h>
40 #include <openssl/crmf.h>
41 #include <openssl/crypto.h>
42 #include <openssl/err.h>
43 #include <openssl/store.h>
44 #include <openssl/objects.h>
45 #include <openssl/x509.h>
46 
47 static char *prog;
48 static char *opt_config = NULL;
49 #define CMP_SECTION "cmp"
50 #define SECTION_NAME_MAX 40 /* max length of section name */
51 #define DEFAULT_SECTION "default"
52 static char *opt_section = CMP_SECTION;
53 static int opt_verbosity = OSSL_CMP_LOG_INFO;
54 
55 static int read_config(void);
56 
57 static CONF *conf = NULL; /* OpenSSL config file context structure */
58 static OSSL_CMP_CTX *cmp_ctx = NULL; /* the client-side CMP context */
59 
60 /* the type of cmp command we want to send */
61 typedef enum {
62     CMP_IR,
63     CMP_KUR,
64     CMP_CR,
65     CMP_P10CR,
66     CMP_RR,
67     CMP_GENM
68 } cmp_cmd_t;
69 
70 /* message transfer */
71 #ifndef OPENSSL_NO_SOCK
72 static char *opt_server = NULL;
73 static char *opt_proxy = NULL;
74 static char *opt_no_proxy = NULL;
75 #endif
76 static char *opt_recipient = NULL;
77 static char *opt_path = NULL;
78 static int opt_keep_alive = 1;
79 static int opt_msg_timeout = -1;
80 static int opt_total_timeout = -1;
81 
82 /* server authentication */
83 static char *opt_trusted = NULL;
84 static char *opt_untrusted = NULL;
85 static char *opt_srvcert = NULL;
86 static char *opt_expect_sender = NULL;
87 static int opt_ignore_keyusage = 0;
88 static int opt_unprotected_errors = 0;
89 static char *opt_extracertsout = NULL;
90 static char *opt_cacertsout = NULL;
91 
92 /* client authentication */
93 static char *opt_ref = NULL;
94 static char *opt_secret = NULL;
95 static char *opt_cert = NULL;
96 static char *opt_own_trusted = NULL;
97 static char *opt_key = NULL;
98 static char *opt_keypass = NULL;
99 static char *opt_digest = NULL;
100 static char *opt_mac = NULL;
101 static char *opt_extracerts = NULL;
102 static int opt_unprotected_requests = 0;
103 
104 /* generic message */
105 static char *opt_cmd_s = NULL;
106 static int opt_cmd = -1;
107 static char *opt_geninfo = NULL;
108 static char *opt_infotype_s = NULL;
109 static int opt_infotype = NID_undef;
110 
111 /* certificate enrollment */
112 static char *opt_newkey = NULL;
113 static char *opt_newkeypass = NULL;
114 static char *opt_subject = NULL;
115 static char *opt_issuer = NULL;
116 static int opt_days = 0;
117 static char *opt_reqexts = NULL;
118 static char *opt_sans = NULL;
119 static int opt_san_nodefault = 0;
120 static char *opt_policies = NULL;
121 static char *opt_policy_oids = NULL;
122 static int opt_policy_oids_critical = 0;
123 static int opt_popo = OSSL_CRMF_POPO_NONE - 1;
124 static char *opt_csr = NULL;
125 static char *opt_out_trusted = NULL;
126 static int opt_implicit_confirm = 0;
127 static int opt_disable_confirm = 0;
128 static char *opt_certout = NULL;
129 static char *opt_chainout = NULL;
130 
131 /* certificate enrollment and revocation */
132 static char *opt_oldcert = NULL;
133 static int opt_revreason = CRL_REASON_NONE;
134 
135 /* credentials format */
136 static char *opt_certform_s = "PEM";
137 static int opt_certform = FORMAT_PEM;
138 static char *opt_keyform_s = NULL;
139 static int opt_keyform = FORMAT_UNDEF;
140 static char *opt_otherpass = NULL;
141 static char *opt_engine = NULL;
142 
143 #ifndef OPENSSL_NO_SOCK
144 /* TLS connection */
145 static int opt_tls_used = 0;
146 static char *opt_tls_cert = NULL;
147 static char *opt_tls_key = NULL;
148 static char *opt_tls_keypass = NULL;
149 static char *opt_tls_extra = NULL;
150 static char *opt_tls_trusted = NULL;
151 static char *opt_tls_host = NULL;
152 #endif
153 
154 /* client-side debugging */
155 static int opt_batch = 0;
156 static int opt_repeat = 1;
157 static char *opt_reqin = NULL;
158 static int opt_reqin_new_tid = 0;
159 static char *opt_reqout = NULL;
160 static char *opt_rspin = NULL;
161 static int rspin_in_use = 0;
162 static char *opt_rspout = NULL;
163 static int opt_use_mock_srv = 0;
164 
165 /* mock server */
166 #ifndef OPENSSL_NO_SOCK
167 static char *opt_port = NULL;
168 static int opt_max_msgs = 0;
169 #endif
170 static char *opt_srv_ref = NULL;
171 static char *opt_srv_secret = NULL;
172 static char *opt_srv_cert = NULL;
173 static char *opt_srv_key = NULL;
174 static char *opt_srv_keypass = NULL;
175 
176 static char *opt_srv_trusted = NULL;
177 static char *opt_srv_untrusted = NULL;
178 static char *opt_rsp_cert = NULL;
179 static char *opt_rsp_extracerts = NULL;
180 static char *opt_rsp_capubs = NULL;
181 static int opt_poll_count = 0;
182 static int opt_check_after = 1;
183 static int opt_grant_implicitconf = 0;
184 
185 static int opt_pkistatus = OSSL_CMP_PKISTATUS_accepted;
186 static int opt_failure = INT_MIN;
187 static int opt_failurebits = 0;
188 static char *opt_statusstring = NULL;
189 static int opt_send_error = 0;
190 static int opt_send_unprotected = 0;
191 static int opt_send_unprot_err = 0;
192 static int opt_accept_unprotected = 0;
193 static int opt_accept_unprot_err = 0;
194 static int opt_accept_raverified = 0;
195 
196 static X509_VERIFY_PARAM *vpm = NULL;
197 
198 typedef enum OPTION_choice {
199     OPT_COMMON,
200     OPT_CONFIG, OPT_SECTION, OPT_VERBOSITY,
201 
202     OPT_CMD, OPT_INFOTYPE, OPT_GENINFO,
203 
204     OPT_NEWKEY, OPT_NEWKEYPASS, OPT_SUBJECT, OPT_ISSUER,
205     OPT_DAYS, OPT_REQEXTS,
206     OPT_SANS, OPT_SAN_NODEFAULT,
207     OPT_POLICIES, OPT_POLICY_OIDS, OPT_POLICY_OIDS_CRITICAL,
208     OPT_POPO, OPT_CSR,
209     OPT_OUT_TRUSTED, OPT_IMPLICIT_CONFIRM, OPT_DISABLE_CONFIRM,
210     OPT_CERTOUT, OPT_CHAINOUT,
211 
212     OPT_OLDCERT, OPT_REVREASON,
213 
214 #ifndef OPENSSL_NO_SOCK
215     OPT_SERVER, OPT_PROXY, OPT_NO_PROXY,
216 #endif
217     OPT_RECIPIENT, OPT_PATH,
218     OPT_KEEP_ALIVE, OPT_MSG_TIMEOUT, OPT_TOTAL_TIMEOUT,
219 
220     OPT_TRUSTED, OPT_UNTRUSTED, OPT_SRVCERT,
221     OPT_EXPECT_SENDER,
222     OPT_IGNORE_KEYUSAGE, OPT_UNPROTECTED_ERRORS,
223     OPT_EXTRACERTSOUT, OPT_CACERTSOUT,
224 
225     OPT_REF, OPT_SECRET, OPT_CERT, OPT_OWN_TRUSTED, OPT_KEY, OPT_KEYPASS,
226     OPT_DIGEST, OPT_MAC, OPT_EXTRACERTS,
227     OPT_UNPROTECTED_REQUESTS,
228 
229     OPT_CERTFORM, OPT_KEYFORM,
230     OPT_OTHERPASS,
231 #ifndef OPENSSL_NO_ENGINE
232     OPT_ENGINE,
233 #endif
234     OPT_PROV_ENUM,
235     OPT_R_ENUM,
236 
237 #ifndef OPENSSL_NO_SOCK
238     OPT_TLS_USED, OPT_TLS_CERT, OPT_TLS_KEY,
239     OPT_TLS_KEYPASS,
240     OPT_TLS_EXTRA, OPT_TLS_TRUSTED, OPT_TLS_HOST,
241 #endif
242 
243     OPT_BATCH, OPT_REPEAT,
244     OPT_REQIN, OPT_REQIN_NEW_TID, OPT_REQOUT, OPT_RSPIN, OPT_RSPOUT,
245     OPT_USE_MOCK_SRV,
246 
247 #ifndef OPENSSL_NO_SOCK
248     OPT_PORT, OPT_MAX_MSGS,
249 #endif
250     OPT_SRV_REF, OPT_SRV_SECRET,
251     OPT_SRV_CERT, OPT_SRV_KEY, OPT_SRV_KEYPASS,
252     OPT_SRV_TRUSTED, OPT_SRV_UNTRUSTED,
253     OPT_RSP_CERT, OPT_RSP_EXTRACERTS, OPT_RSP_CAPUBS,
254     OPT_POLL_COUNT, OPT_CHECK_AFTER,
255     OPT_GRANT_IMPLICITCONF,
256     OPT_PKISTATUS, OPT_FAILURE,
257     OPT_FAILUREBITS, OPT_STATUSSTRING,
258     OPT_SEND_ERROR, OPT_SEND_UNPROTECTED,
259     OPT_SEND_UNPROT_ERR, OPT_ACCEPT_UNPROTECTED,
260     OPT_ACCEPT_UNPROT_ERR, OPT_ACCEPT_RAVERIFIED,
261 
262     OPT_V_ENUM
263 } OPTION_CHOICE;
264 
265 const OPTIONS cmp_options[] = {
266     /* entries must be in the same order as enumerated above!! */
267     {"help", OPT_HELP, '-', "Display this summary"},
268     {"config", OPT_CONFIG, 's',
269      "Configuration file to use. \"\" = none. Default from env variable OPENSSL_CONF"},
270     {"section", OPT_SECTION, 's',
271      "Section(s) in config file to get options from. \"\" = 'default'. Default 'cmp'"},
272     {"verbosity", OPT_VERBOSITY, 'N',
273      "Log level; 3=ERR, 4=WARN, 6=INFO, 7=DEBUG, 8=TRACE. Default 6 = INFO"},
274 
275     OPT_SECTION("Generic message"),
276     {"cmd", OPT_CMD, 's', "CMP request to send: ir/cr/kur/p10cr/rr/genm"},
277     {"infotype", OPT_INFOTYPE, 's',
278      "InfoType name for requesting specific info in genm, e.g. 'signKeyPairTypes'"},
279     {"geninfo", OPT_GENINFO, 's',
280      "generalInfo integer values to place in request PKIHeader with given OID"},
281     {OPT_MORE_STR, 0, 0,
282      "specified in the form <OID>:int:<n>, e.g. \"1.2.3.4:int:56789\""},
283 
284     OPT_SECTION("Certificate enrollment"),
285     {"newkey", OPT_NEWKEY, 's',
286      "Private or public key for the requested cert. Default: CSR key or client key"},
287     {"newkeypass", OPT_NEWKEYPASS, 's', "New private key pass phrase source"},
288     {"subject", OPT_SUBJECT, 's',
289      "Distinguished Name (DN) of subject to use in the requested cert template"},
290     {OPT_MORE_STR, 0, 0,
291      "For kur, default is subject of -csr arg or reference cert (see -oldcert)"},
292     {OPT_MORE_STR, 0, 0,
293      "this default is used for ir and cr only if no Subject Alt Names are set"},
294     {"issuer", OPT_ISSUER, 's',
295      "DN of the issuer to place in the requested certificate template"},
296     {OPT_MORE_STR, 0, 0,
297      "also used as recipient if neither -recipient nor -srvcert are given"},
298     {"days", OPT_DAYS, 'N',
299      "Requested validity time of the new certificate in number of days"},
300     {"reqexts", OPT_REQEXTS, 's',
301      "Name of config file section defining certificate request extensions."},
302     {OPT_MORE_STR, 0, 0,
303      "Augments or replaces any extensions contained CSR given with -csr"},
304     {"sans", OPT_SANS, 's',
305      "Subject Alt Names (IPADDR/DNS/URI) to add as (critical) cert req extension"},
306     {"san_nodefault", OPT_SAN_NODEFAULT, '-',
307      "Do not take default SANs from reference certificate (see -oldcert)"},
308     {"policies", OPT_POLICIES, 's',
309      "Name of config file section defining policies certificate request extension"},
310     {"policy_oids", OPT_POLICY_OIDS, 's',
311      "Policy OID(s) to add as policies certificate request extension"},
312     {"policy_oids_critical", OPT_POLICY_OIDS_CRITICAL, '-',
313      "Flag the policy OID(s) given with -policy_oids as critical"},
314     {"popo", OPT_POPO, 'n',
315      "Proof-of-Possession (POPO) method to use for ir/cr/kur where"},
316     {OPT_MORE_STR, 0, 0,
317      "-1 = NONE, 0 = RAVERIFIED, 1 = SIGNATURE (default), 2 = KEYENC"},
318     {"csr", OPT_CSR, 's',
319      "PKCS#10 CSR file in PEM or DER format to convert or to use in p10cr"},
320     {"out_trusted", OPT_OUT_TRUSTED, 's',
321      "Certificates to trust when verifying newly enrolled certificates"},
322     {"implicit_confirm", OPT_IMPLICIT_CONFIRM, '-',
323      "Request implicit confirmation of newly enrolled certificates"},
324     {"disable_confirm", OPT_DISABLE_CONFIRM, '-',
325      "Do not confirm newly enrolled certificate w/o requesting implicit"},
326     {OPT_MORE_STR, 0, 0,
327      "confirmation. WARNING: This leads to behavior violating RFC 4210"},
328     {"certout", OPT_CERTOUT, 's',
329      "File to save newly enrolled certificate"},
330     {"chainout", OPT_CHAINOUT, 's',
331      "File to save the chain of newly enrolled certificate"},
332 
333     OPT_SECTION("Certificate enrollment and revocation"),
334 
335     {"oldcert", OPT_OLDCERT, 's',
336      "Certificate to be updated (defaulting to -cert) or to be revoked in rr;"},
337     {OPT_MORE_STR, 0, 0,
338      "also used as reference (defaulting to -cert) for subject DN and SANs."},
339     {OPT_MORE_STR, 0, 0,
340      "Issuer is used as recipient unless -recipient, -srvcert, or -issuer given"},
341     {"revreason", OPT_REVREASON, 'n',
342      "Reason code to include in revocation request (rr); possible values:"},
343     {OPT_MORE_STR, 0, 0,
344      "0..6, 8..10 (see RFC5280, 5.3.1) or -1. Default -1 = none included"},
345 
346     OPT_SECTION("Message transfer"),
347 #ifdef OPENSSL_NO_SOCK
348     {OPT_MORE_STR, 0, 0,
349      "NOTE: -server, -proxy, and -no_proxy not supported due to no-sock build"},
350 #else
351     {"server", OPT_SERVER, 's',
352      "[http[s]://]address[:port][/path] of CMP server. Default port 80 or 443."},
353     {OPT_MORE_STR, 0, 0,
354      "address may be a DNS name or an IP address; path can be overridden by -path"},
355     {"proxy", OPT_PROXY, 's',
356      "[http[s]://]address[:port][/path] of HTTP(S) proxy to use; path is ignored"},
357     {"no_proxy", OPT_NO_PROXY, 's',
358      "List of addresses of servers not to use HTTP(S) proxy for"},
359     {OPT_MORE_STR, 0, 0,
360      "Default from environment variable 'no_proxy', else 'NO_PROXY', else none"},
361 #endif
362     {"recipient", OPT_RECIPIENT, 's',
363      "DN of CA. Default: subject of -srvcert, -issuer, issuer of -oldcert or -cert"},
364     {"path", OPT_PATH, 's',
365      "HTTP path (aka CMP alias) at the CMP server. Default from -server, else \"/\""},
366     {"keep_alive", OPT_KEEP_ALIVE, 'N',
367      "Persistent HTTP connections. 0: no, 1 (the default): request, 2: require"},
368     {"msg_timeout", OPT_MSG_TIMEOUT, 'N',
369      "Number of seconds allowed per CMP message round trip, or 0 for infinite"},
370     {"total_timeout", OPT_TOTAL_TIMEOUT, 'N',
371      "Overall time an enrollment incl. polling may take. Default 0 = infinite"},
372 
373     OPT_SECTION("Server authentication"),
374     {"trusted", OPT_TRUSTED, 's',
375      "Certificates to use as trust anchors when verifying signed CMP responses"},
376     {OPT_MORE_STR, 0, 0, "unless -srvcert is given"},
377     {"untrusted", OPT_UNTRUSTED, 's',
378      "Intermediate CA certs for chain construction for CMP/TLS/enrolled certs"},
379     {"srvcert", OPT_SRVCERT, 's',
380      "Server cert to pin and trust directly when verifying signed CMP responses"},
381     {"expect_sender", OPT_EXPECT_SENDER, 's',
382      "DN of expected sender of responses. Defaults to subject of -srvcert, if any"},
383     {"ignore_keyusage", OPT_IGNORE_KEYUSAGE, '-',
384      "Ignore CMP signer cert key usage, else 'digitalSignature' must be allowed"},
385     {"unprotected_errors", OPT_UNPROTECTED_ERRORS, '-',
386      "Accept missing or invalid protection of regular error messages and negative"},
387     {OPT_MORE_STR, 0, 0,
388      "certificate responses (ip/cp/kup), revocation responses (rp), and PKIConf"},
389     {OPT_MORE_STR, 0, 0,
390      "WARNING: This setting leads to behavior allowing violation of RFC 4210"},
391     {"extracertsout", OPT_EXTRACERTSOUT, 's',
392      "File to save extra certificates received in the extraCerts field"},
393     {"cacertsout", OPT_CACERTSOUT, 's',
394      "File to save CA certificates received in the caPubs field of 'ip' messages"},
395 
396     OPT_SECTION("Client authentication"),
397     {"ref", OPT_REF, 's',
398      "Reference value to use as senderKID in case no -cert is given"},
399     {"secret", OPT_SECRET, 's',
400      "Prefer PBM (over signatures) for protecting msgs with given password source"},
401     {"cert", OPT_CERT, 's',
402      "Client's CMP signer certificate; its public key must match the -key argument"},
403     {OPT_MORE_STR, 0, 0,
404      "This also used as default reference for subject DN and SANs."},
405     {OPT_MORE_STR, 0, 0,
406      "Any further certs included are appended to the untrusted certs"},
407     {"own_trusted", OPT_OWN_TRUSTED, 's',
408      "Optional certs to verify chain building for own CMP signer cert"},
409     {"key", OPT_KEY, 's', "CMP signer private key, not used when -secret given"},
410     {"keypass", OPT_KEYPASS, 's',
411      "Client private key (and cert and old cert) pass phrase source"},
412     {"digest", OPT_DIGEST, 's',
413      "Digest to use in message protection and POPO signatures. Default \"sha256\""},
414     {"mac", OPT_MAC, 's',
415      "MAC algorithm to use in PBM-based message protection. Default \"hmac-sha1\""},
416     {"extracerts", OPT_EXTRACERTS, 's',
417      "Certificates to append in extraCerts field of outgoing messages."},
418     {OPT_MORE_STR, 0, 0,
419      "This can be used as the default CMP signer cert chain to include"},
420     {"unprotected_requests", OPT_UNPROTECTED_REQUESTS, '-',
421      "Send request messages without CMP-level protection"},
422 
423     OPT_SECTION("Credentials format"),
424     {"certform", OPT_CERTFORM, 's',
425      "Format (PEM or DER) to use when saving a certificate to a file. Default PEM"},
426     {"keyform", OPT_KEYFORM, 's',
427      "Format of the key input (ENGINE, other values ignored)"},
428     {"otherpass", OPT_OTHERPASS, 's',
429      "Pass phrase source potentially needed for loading certificates of others"},
430 #ifndef OPENSSL_NO_ENGINE
431     {"engine", OPT_ENGINE, 's',
432      "Use crypto engine with given identifier, possibly a hardware device."},
433     {OPT_MORE_STR, 0, 0,
434      "Engines may also be defined in OpenSSL config file engine section."},
435 #endif
436     OPT_PROV_OPTIONS,
437     OPT_R_OPTIONS,
438 
439     OPT_SECTION("TLS connection"),
440 #ifdef OPENSSL_NO_SOCK
441     {OPT_MORE_STR, 0, 0,
442      "NOTE: -tls_used and all other TLS options not supported due to no-sock build"},
443 #else
444     {"tls_used", OPT_TLS_USED, '-',
445      "Enable using TLS (also when other TLS options are not set)"},
446     {"tls_cert", OPT_TLS_CERT, 's',
447      "Client's TLS certificate. May include chain to be provided to TLS server"},
448     {"tls_key", OPT_TLS_KEY, 's',
449      "Private key for the client's TLS certificate"},
450     {"tls_keypass", OPT_TLS_KEYPASS, 's',
451      "Pass phrase source for the client's private TLS key (and TLS cert)"},
452     {"tls_extra", OPT_TLS_EXTRA, 's',
453      "Extra certificates to provide to TLS server during TLS handshake"},
454     {"tls_trusted", OPT_TLS_TRUSTED, 's',
455      "Trusted certificates to use for verifying the TLS server certificate;"},
456     {OPT_MORE_STR, 0, 0, "this implies host name validation"},
457     {"tls_host", OPT_TLS_HOST, 's',
458      "Address to be checked (rather than -server) during TLS host name validation"},
459 #endif
460 
461     OPT_SECTION("Client-side debugging"),
462     {"batch", OPT_BATCH, '-',
463      "Do not interactively prompt for input when a password is required etc."},
464     {"repeat", OPT_REPEAT, 'p',
465      "Invoke the transaction the given positive number of times. Default 1"},
466     {"reqin", OPT_REQIN, 's',
467      "Take sequence of CMP requests to send to server from file(s)"},
468     {"reqin_new_tid", OPT_REQIN_NEW_TID, '-',
469      "Use fresh transactionID for CMP requests read from -reqin"},
470     {"reqout", OPT_REQOUT, 's',
471      "Save sequence of CMP requests created by the client to file(s)"},
472     {"rspin", OPT_RSPIN, 's',
473      "Process sequence of CMP responses provided in file(s), skipping server"},
474     {"rspout", OPT_RSPOUT, 's',
475      "Save sequence of actually used CMP responses to file(s)"},
476 
477     {"use_mock_srv", OPT_USE_MOCK_SRV, '-',
478      "Use internal mock server at API level, bypassing socket-based HTTP"},
479 
480     OPT_SECTION("Mock server"),
481 #ifdef OPENSSL_NO_SOCK
482     {OPT_MORE_STR, 0, 0,
483      "NOTE: -port and -max_msgs not supported due to no-sock build"},
484 #else
485     {"port", OPT_PORT, 's',
486      "Act as HTTP-based mock server listening on given port"},
487     {"max_msgs", OPT_MAX_MSGS, 'N',
488      "max number of messages handled by HTTP mock server. Default: 0 = unlimited"},
489 #endif
490 
491     {"srv_ref", OPT_SRV_REF, 's',
492      "Reference value to use as senderKID of server in case no -srv_cert is given"},
493     {"srv_secret", OPT_SRV_SECRET, 's',
494      "Password source for server authentication with a pre-shared key (secret)"},
495     {"srv_cert", OPT_SRV_CERT, 's', "Certificate of the server"},
496     {"srv_key", OPT_SRV_KEY, 's',
497      "Private key used by the server for signing messages"},
498     {"srv_keypass", OPT_SRV_KEYPASS, 's',
499      "Server private key (and cert) pass phrase source"},
500 
501     {"srv_trusted", OPT_SRV_TRUSTED, 's',
502      "Trusted certificates for client authentication"},
503     {"srv_untrusted", OPT_SRV_UNTRUSTED, 's',
504      "Intermediate certs that may be useful for verifying CMP protection"},
505     {"rsp_cert", OPT_RSP_CERT, 's',
506      "Certificate to be returned as mock enrollment result"},
507     {"rsp_extracerts", OPT_RSP_EXTRACERTS, 's',
508      "Extra certificates to be included in mock certification responses"},
509     {"rsp_capubs", OPT_RSP_CAPUBS, 's',
510      "CA certificates to be included in mock ip response"},
511     {"poll_count", OPT_POLL_COUNT, 'N',
512      "Number of times the client must poll before receiving a certificate"},
513     {"check_after", OPT_CHECK_AFTER, 'N',
514      "The check_after value (time to wait) to include in poll response"},
515     {"grant_implicitconf", OPT_GRANT_IMPLICITCONF, '-',
516      "Grant implicit confirmation of newly enrolled certificate"},
517 
518     {"pkistatus", OPT_PKISTATUS, 'N',
519      "PKIStatus to be included in server response. Possible values: 0..6"},
520     {"failure", OPT_FAILURE, 'N',
521      "A single failure info bit number to include in server response, 0..26"},
522     {"failurebits", OPT_FAILUREBITS, 'N',
523      "Number representing failure bits to include in server response, 0..2^27 - 1"},
524     {"statusstring", OPT_STATUSSTRING, 's',
525      "Status string to be included in server response"},
526     {"send_error", OPT_SEND_ERROR, '-',
527      "Force server to reply with error message"},
528     {"send_unprotected", OPT_SEND_UNPROTECTED, '-',
529      "Send response messages without CMP-level protection"},
530     {"send_unprot_err", OPT_SEND_UNPROT_ERR, '-',
531      "In case of negative responses, server shall send unprotected error messages,"},
532     {OPT_MORE_STR, 0, 0,
533      "certificate responses (ip/cp/kup), and revocation responses (rp)."},
534     {OPT_MORE_STR, 0, 0,
535      "WARNING: This setting leads to behavior violating RFC 4210"},
536     {"accept_unprotected", OPT_ACCEPT_UNPROTECTED, '-',
537      "Accept missing or invalid protection of requests"},
538     {"accept_unprot_err", OPT_ACCEPT_UNPROT_ERR, '-',
539      "Accept unprotected error messages from client"},
540     {"accept_raverified", OPT_ACCEPT_RAVERIFIED, '-',
541      "Accept RAVERIFIED as proof-of-possession (POPO)"},
542 
543     OPT_V_OPTIONS,
544     {NULL}
545 };
546 
547 typedef union {
548     char **txt;
549     int *num;
550     long *num_long;
551 } varref;
552 static varref cmp_vars[] = { /* must be in same order as enumerated above! */
553     {&opt_config}, {&opt_section}, {(char **)&opt_verbosity},
554 
555     {&opt_cmd_s}, {&opt_infotype_s}, {&opt_geninfo},
556 
557     {&opt_newkey}, {&opt_newkeypass}, {&opt_subject}, {&opt_issuer},
558     {(char **)&opt_days}, {&opt_reqexts},
559     {&opt_sans}, {(char **)&opt_san_nodefault},
560     {&opt_policies}, {&opt_policy_oids}, {(char **)&opt_policy_oids_critical},
561     {(char **)&opt_popo}, {&opt_csr},
562     {&opt_out_trusted},
563     {(char **)&opt_implicit_confirm}, {(char **)&opt_disable_confirm},
564     {&opt_certout}, {&opt_chainout},
565 
566     {&opt_oldcert}, {(char **)&opt_revreason},
567 
568 #ifndef OPENSSL_NO_SOCK
569     {&opt_server}, {&opt_proxy}, {&opt_no_proxy},
570 #endif
571     {&opt_recipient}, {&opt_path}, {(char **)&opt_keep_alive},
572     {(char **)&opt_msg_timeout}, {(char **)&opt_total_timeout},
573 
574     {&opt_trusted}, {&opt_untrusted}, {&opt_srvcert},
575     {&opt_expect_sender},
576     {(char **)&opt_ignore_keyusage}, {(char **)&opt_unprotected_errors},
577     {&opt_extracertsout}, {&opt_cacertsout},
578 
579     {&opt_ref}, {&opt_secret},
580     {&opt_cert}, {&opt_own_trusted}, {&opt_key}, {&opt_keypass},
581     {&opt_digest}, {&opt_mac}, {&opt_extracerts},
582     {(char **)&opt_unprotected_requests},
583 
584     {&opt_certform_s}, {&opt_keyform_s},
585     {&opt_otherpass},
586 #ifndef OPENSSL_NO_ENGINE
587     {&opt_engine},
588 #endif
589 
590 #ifndef OPENSSL_NO_SOCK
591     {(char **)&opt_tls_used}, {&opt_tls_cert}, {&opt_tls_key},
592     {&opt_tls_keypass},
593     {&opt_tls_extra}, {&opt_tls_trusted}, {&opt_tls_host},
594 #endif
595 
596     {(char **)&opt_batch}, {(char **)&opt_repeat},
597     {&opt_reqin}, {(char **)&opt_reqin_new_tid},
598     {&opt_reqout}, {&opt_rspin}, {&opt_rspout},
599 
600     {(char **)&opt_use_mock_srv},
601 #ifndef OPENSSL_NO_SOCK
602     {&opt_port}, {(char **)&opt_max_msgs},
603 #endif
604     {&opt_srv_ref}, {&opt_srv_secret},
605     {&opt_srv_cert}, {&opt_srv_key}, {&opt_srv_keypass},
606     {&opt_srv_trusted}, {&opt_srv_untrusted},
607     {&opt_rsp_cert}, {&opt_rsp_extracerts}, {&opt_rsp_capubs},
608     {(char **)&opt_poll_count}, {(char **)&opt_check_after},
609     {(char **)&opt_grant_implicitconf},
610     {(char **)&opt_pkistatus}, {(char **)&opt_failure},
611     {(char **)&opt_failurebits}, {&opt_statusstring},
612     {(char **)&opt_send_error}, {(char **)&opt_send_unprotected},
613     {(char **)&opt_send_unprot_err}, {(char **)&opt_accept_unprotected},
614     {(char **)&opt_accept_unprot_err}, {(char **)&opt_accept_raverified},
615 
616     {NULL}
617 };
618 
619 #define FUNC (strcmp(OPENSSL_FUNC, "(unknown function)") == 0   \
620               ? "CMP" : OPENSSL_FUNC)
621 #define CMP_print(bio, level, prefix, msg, a1, a2, a3) \
622     ((void)(level > opt_verbosity ? 0 : \
623             (BIO_printf(bio, "%s:%s:%d:CMP %s: " msg "\n", \
624                         FUNC, OPENSSL_FILE, OPENSSL_LINE, prefix, a1, a2, a3))))
625 #define CMP_DEBUG(m, a1, a2, a3) \
626     CMP_print(bio_out, OSSL_CMP_LOG_DEBUG, "debug", m, a1, a2, a3)
627 #define CMP_debug(msg)             CMP_DEBUG(msg"%s%s%s", "", "", "")
628 #define CMP_debug1(msg, a1)        CMP_DEBUG(msg"%s%s",   a1, "", "")
629 #define CMP_debug2(msg, a1, a2)    CMP_DEBUG(msg"%s",     a1, a2, "")
630 #define CMP_debug3(msg, a1, a2, a3) CMP_DEBUG(msg,        a1, a2, a3)
631 #define CMP_INFO(msg, a1, a2, a3) \
632     CMP_print(bio_out, OSSL_CMP_LOG_INFO, "info", msg, a1, a2, a3)
633 #define CMP_info(msg)              CMP_INFO(msg"%s%s%s", "", "", "")
634 #define CMP_info1(msg, a1)         CMP_INFO(msg"%s%s",   a1, "", "")
635 #define CMP_info2(msg, a1, a2)     CMP_INFO(msg"%s",     a1, a2, "")
636 #define CMP_info3(msg, a1, a2, a3) CMP_INFO(msg,         a1, a2, a3)
637 #define CMP_WARN(m, a1, a2, a3) \
638     CMP_print(bio_out, OSSL_CMP_LOG_WARNING, "warning", m, a1, a2, a3)
639 #define CMP_warn(msg)              CMP_WARN(msg"%s%s%s", "", "", "")
640 #define CMP_warn1(msg, a1)         CMP_WARN(msg"%s%s",   a1, "", "")
641 #define CMP_warn2(msg, a1, a2)     CMP_WARN(msg"%s",     a1, a2, "")
642 #define CMP_warn3(msg, a1, a2, a3) CMP_WARN(msg,         a1, a2, a3)
643 #define CMP_ERR(msg, a1, a2, a3) \
644     CMP_print(bio_err, OSSL_CMP_LOG_ERR, "error", msg, a1, a2, a3)
645 #define CMP_err(msg)               CMP_ERR(msg"%s%s%s", "", "", "")
646 #define CMP_err1(msg, a1)          CMP_ERR(msg"%s%s",   a1, "", "")
647 #define CMP_err2(msg, a1, a2)      CMP_ERR(msg"%s",     a1, a2, "")
648 #define CMP_err3(msg, a1, a2, a3)  CMP_ERR(msg,         a1, a2, a3)
649 
650 static int print_to_bio_out(const char *func, const char *file, int line,
651                             OSSL_CMP_severity level, const char *msg)
652 {
653     return OSSL_CMP_print_to_bio(bio_out, func, file, line, level, msg);
654 }
655 
656 static int print_to_bio_err(const char *func, const char *file, int line,
657                             OSSL_CMP_severity level, const char *msg)
658 {
659     return OSSL_CMP_print_to_bio(bio_err, func, file, line, level, msg);
660 }
661 
662 static int set_verbosity(int level)
663 {
664     if (level < OSSL_CMP_LOG_EMERG || level > OSSL_CMP_LOG_MAX) {
665         CMP_err1("Logging verbosity level %d out of range (0 .. 8)", level);
666         return 0;
667     }
668     opt_verbosity = level;
669     return 1;
670 }
671 
672 static EVP_PKEY *load_key_pwd(const char *uri, int format,
673                               const char *pass, ENGINE *eng, const char *desc)
674 {
675     char *pass_string = get_passwd(pass, desc);
676     EVP_PKEY *pkey = load_key(uri, format, 0, pass_string, eng, desc);
677 
678     clear_free(pass_string);
679     return pkey;
680 }
681 
682 static X509 *load_cert_pwd(const char *uri, const char *pass, const char *desc)
683 {
684     X509 *cert;
685     char *pass_string = get_passwd(pass, desc);
686 
687     cert = load_cert_pass(uri, FORMAT_UNDEF, 0, pass_string, desc);
688     clear_free(pass_string);
689     return cert;
690 }
691 
692 static X509_REQ *load_csr_autofmt(const char *infile, const char *desc)
693 {
694     X509_REQ *csr;
695     BIO *bio_bak = bio_err;
696 
697     bio_err = NULL; /* do not show errors on more than one try */
698     csr = load_csr(infile, FORMAT_PEM, desc);
699     bio_err = bio_bak;
700     if (csr == NULL) {
701         ERR_clear_error();
702         csr = load_csr(infile, FORMAT_ASN1, desc);
703     }
704     if (csr == NULL) {
705         ERR_print_errors(bio_err);
706         BIO_printf(bio_err, "error: unable to load %s from file '%s'\n", desc,
707                    infile);
708     } else {
709         EVP_PKEY *pkey = X509_REQ_get0_pubkey(csr);
710         int ret = do_X509_REQ_verify(csr, pkey, NULL /* vfyopts */);
711 
712         if (pkey == NULL || ret < 0)
713             CMP_warn("error while verifying CSR self-signature");
714         else if (ret == 0)
715             CMP_warn("CSR self-signature does not match the contents");
716     }
717     return csr;
718 }
719 
720 /* set expected host name/IP addr and clears the email addr in the given ts */
721 static int truststore_set_host_etc(X509_STORE *ts, const char *host)
722 {
723     X509_VERIFY_PARAM *ts_vpm = X509_STORE_get0_param(ts);
724 
725     /* first clear any host names, IP, and email addresses */
726     if (!X509_VERIFY_PARAM_set1_host(ts_vpm, NULL, 0)
727             || !X509_VERIFY_PARAM_set1_ip(ts_vpm, NULL, 0)
728             || !X509_VERIFY_PARAM_set1_email(ts_vpm, NULL, 0))
729         return 0;
730     X509_VERIFY_PARAM_set_hostflags(ts_vpm,
731                                     X509_CHECK_FLAG_ALWAYS_CHECK_SUBJECT |
732                                     X509_CHECK_FLAG_NO_PARTIAL_WILDCARDS);
733     return (host != NULL && X509_VERIFY_PARAM_set1_ip_asc(ts_vpm, host))
734         || X509_VERIFY_PARAM_set1_host(ts_vpm, host, 0);
735 }
736 
737 /* write OSSL_CMP_MSG DER-encoded to the specified file name item */
738 static int write_PKIMESSAGE(const OSSL_CMP_MSG *msg, char **filenames)
739 {
740     char *file;
741 
742     if (msg == NULL || filenames == NULL) {
743         CMP_err("NULL arg to write_PKIMESSAGE");
744         return 0;
745     }
746     if (*filenames == NULL) {
747         CMP_err("not enough file names provided for writing PKIMessage");
748         return 0;
749     }
750 
751     file = *filenames;
752     *filenames = next_item(file);
753     if (OSSL_CMP_MSG_write(file, msg) < 0) {
754         CMP_err1("cannot write PKIMessage to file '%s'", file);
755         return 0;
756     }
757     return 1;
758 }
759 
760 /* read DER-encoded OSSL_CMP_MSG from the specified file name item */
761 static OSSL_CMP_MSG *read_PKIMESSAGE(const char *desc, char **filenames)
762 {
763     char *file;
764     OSSL_CMP_MSG *ret;
765 
766     if (filenames == NULL || desc == NULL) {
767         CMP_err("NULL arg to read_PKIMESSAGE");
768         return NULL;
769     }
770     if (*filenames == NULL) {
771         CMP_err("not enough file names provided for reading PKIMessage");
772         return NULL;
773     }
774 
775     file = *filenames;
776     *filenames = next_item(file);
777 
778     ret = OSSL_CMP_MSG_read(file, app_get0_libctx(), app_get0_propq());
779     if (ret == NULL)
780         CMP_err1("cannot read PKIMessage from file '%s'", file);
781     else
782         CMP_info2("%s %s", desc, file);
783     return ret;
784 }
785 
786 /*-
787  * Sends the PKIMessage req and on success place the response in *res
788  * basically like OSSL_CMP_MSG_http_perform(), but in addition allows
789  * to dump the sequence of requests and responses to files and/or
790  * to take the sequence of requests and responses from files.
791  */
792 static OSSL_CMP_MSG *read_write_req_resp(OSSL_CMP_CTX *ctx,
793                                          const OSSL_CMP_MSG *req)
794 {
795     OSSL_CMP_MSG *req_new = NULL;
796     OSSL_CMP_MSG *res = NULL;
797     OSSL_CMP_PKIHEADER *hdr;
798     const char *prev_opt_rspin = opt_rspin;
799 
800     if (req != NULL && opt_reqout != NULL
801             && !write_PKIMESSAGE(req, &opt_reqout))
802         goto err;
803     if (opt_reqin != NULL && opt_rspin == NULL) {
804         if ((req_new = read_PKIMESSAGE("actually sending", &opt_reqin)) == NULL)
805             goto err;
806         /*-
807          * The transaction ID in req_new read from opt_reqin may not be fresh.
808          * In this case the server may complain "Transaction id already in use."
809          * The following workaround unfortunately requires re-protection.
810          */
811         if (opt_reqin_new_tid
812                 && !OSSL_CMP_MSG_update_transactionID(ctx, req_new))
813             goto err;
814 
815         /*
816          * Except for first request, need to satisfy recipNonce check by server.
817          * Unfortunately requires re-protection if protection is required.
818          */
819         if (!OSSL_CMP_MSG_update_recipNonce(ctx, req_new))
820             goto err;
821     }
822 
823     if (opt_rspin != NULL) {
824         res = read_PKIMESSAGE("actually using", &opt_rspin);
825     } else {
826         const OSSL_CMP_MSG *actual_req = req_new != NULL ? req_new : req;
827 
828         if (opt_use_mock_srv) {
829             if (rspin_in_use)
830                 CMP_warn("too few -rspin filename arguments; resorting to using mock server");
831             res = OSSL_CMP_CTX_server_perform(ctx, actual_req);
832         } else {
833 #ifndef OPENSSL_NO_SOCK
834             if (opt_server == NULL) {
835                 CMP_err("missing -server or -use_mock_srv option, or too few -rspin filename arguments");
836                 goto err;
837             }
838             if (rspin_in_use)
839                 CMP_warn("too few -rspin filename arguments; resorting to contacting server");
840             res = OSSL_CMP_MSG_http_perform(ctx, actual_req);
841 #else
842             CMP_err("-server not supported on no-sock build; missing -use_mock_srv option or too few -rspin filename arguments");
843 #endif
844         }
845         rspin_in_use = 0;
846     }
847     if (res == NULL)
848         goto err;
849 
850     if (req_new != NULL || prev_opt_rspin != NULL) {
851         /* need to satisfy nonce and transactionID checks by client */
852         ASN1_OCTET_STRING *nonce;
853         ASN1_OCTET_STRING *tid;
854 
855         hdr = OSSL_CMP_MSG_get0_header(res);
856         nonce = OSSL_CMP_HDR_get0_recipNonce(hdr);
857         tid = OSSL_CMP_HDR_get0_transactionID(hdr);
858         if (!OSSL_CMP_CTX_set1_senderNonce(ctx, nonce)
859                 || !OSSL_CMP_CTX_set1_transactionID(ctx, tid)) {
860             OSSL_CMP_MSG_free(res);
861             res = NULL;
862             goto err;
863         }
864     }
865 
866     if (opt_rspout != NULL && !write_PKIMESSAGE(res, &opt_rspout)) {
867         OSSL_CMP_MSG_free(res);
868         res = NULL;
869     }
870 
871  err:
872     OSSL_CMP_MSG_free(req_new);
873     return res;
874 }
875 
876 static int set_name(const char *str,
877                     int (*set_fn) (OSSL_CMP_CTX *ctx, const X509_NAME *name),
878                     OSSL_CMP_CTX *ctx, const char *desc)
879 {
880     if (str != NULL) {
881         X509_NAME *n = parse_name(str, MBSTRING_ASC, 1, desc);
882 
883         if (n == NULL)
884             return 0;
885         if (!(*set_fn) (ctx, n)) {
886             X509_NAME_free(n);
887             CMP_err("out of memory");
888             return 0;
889         }
890         X509_NAME_free(n);
891     }
892     return 1;
893 }
894 
895 static int set_gennames(OSSL_CMP_CTX *ctx, char *names, const char *desc)
896 {
897     char *next;
898 
899     for (; names != NULL; names = next) {
900         GENERAL_NAME *n;
901 
902         next = next_item(names);
903         if (strcmp(names, "critical") == 0) {
904             (void)OSSL_CMP_CTX_set_option(ctx,
905                                           OSSL_CMP_OPT_SUBJECTALTNAME_CRITICAL,
906                                           1);
907             continue;
908         }
909 
910         /* try IP address first, then URI or domain name */
911         (void)ERR_set_mark();
912         n = a2i_GENERAL_NAME(NULL, NULL, NULL, GEN_IPADD, names, 0);
913         if (n == NULL)
914             n = a2i_GENERAL_NAME(NULL, NULL, NULL,
915                                  strchr(names, ':') != NULL ? GEN_URI : GEN_DNS,
916                                  names, 0);
917         (void)ERR_pop_to_mark();
918 
919         if (n == NULL) {
920             CMP_err2("bad syntax of %s '%s'", desc, names);
921             return 0;
922         }
923         if (!OSSL_CMP_CTX_push1_subjectAltName(ctx, n)) {
924             GENERAL_NAME_free(n);
925             CMP_err("out of memory");
926             return 0;
927         }
928         GENERAL_NAME_free(n);
929     }
930     return 1;
931 }
932 
933 static X509_STORE *load_trusted(char *input, int for_new_cert, const char *desc)
934 {
935     X509_STORE *ts = load_certstore(input, opt_otherpass, desc, vpm);
936 
937     if (ts == NULL)
938         return NULL;
939     X509_STORE_set_verify_cb(ts, X509_STORE_CTX_print_verify_cb);
940 
941     /* copy vpm to store */
942     if (X509_STORE_set1_param(ts, vpm /* may be NULL */)
943             && (for_new_cert || truststore_set_host_etc(ts, NULL)))
944         return ts;
945     BIO_printf(bio_err, "error setting verification parameters for %s\n", desc);
946     OSSL_CMP_CTX_print_errors(cmp_ctx);
947     X509_STORE_free(ts);
948     return NULL;
949 }
950 
951 typedef int (*add_X509_stack_fn_t)(void *ctx, const STACK_OF(X509) *certs);
952 
953 static int setup_certs(char *files, const char *desc, void *ctx,
954                        add_X509_stack_fn_t set1_fn)
955 {
956     STACK_OF(X509) *certs;
957     int ok;
958 
959     if (files == NULL)
960         return 1;
961     if ((certs = load_certs_multifile(files, opt_otherpass, desc, vpm)) == NULL)
962         return 0;
963     ok = (*set1_fn)(ctx, certs);
964     sk_X509_pop_free(certs, X509_free);
965     return ok;
966 }
967 
968 
969 /*
970  * parse and transform some options, checking their syntax.
971  * Returns 1 on success, 0 on error
972  */
973 static int transform_opts(void)
974 {
975     if (opt_cmd_s != NULL) {
976         if (!strcmp(opt_cmd_s, "ir")) {
977             opt_cmd = CMP_IR;
978         } else if (!strcmp(opt_cmd_s, "kur")) {
979             opt_cmd = CMP_KUR;
980         } else if (!strcmp(opt_cmd_s, "cr")) {
981             opt_cmd = CMP_CR;
982         } else if (!strcmp(opt_cmd_s, "p10cr")) {
983             opt_cmd = CMP_P10CR;
984         } else if (!strcmp(opt_cmd_s, "rr")) {
985             opt_cmd = CMP_RR;
986         } else if (!strcmp(opt_cmd_s, "genm")) {
987             opt_cmd = CMP_GENM;
988         } else {
989             CMP_err1("unknown cmp command '%s'", opt_cmd_s);
990             return 0;
991         }
992     } else {
993         CMP_err("no cmp command to execute");
994         return 0;
995     }
996 
997 #ifndef OPENSSL_NO_ENGINE
998 # define FORMAT_OPTIONS (OPT_FMT_PEMDER | OPT_FMT_PKCS12 | OPT_FMT_ENGINE)
999 #else
1000 # define FORMAT_OPTIONS (OPT_FMT_PEMDER | OPT_FMT_PKCS12)
1001 #endif
1002 
1003     if (opt_keyform_s != NULL
1004             && !opt_format(opt_keyform_s, FORMAT_OPTIONS, &opt_keyform)) {
1005         CMP_err("unknown option given for key loading format");
1006         return 0;
1007     }
1008 
1009 #undef FORMAT_OPTIONS
1010 
1011     if (opt_certform_s != NULL
1012             && !opt_format(opt_certform_s, OPT_FMT_PEMDER, &opt_certform)) {
1013         CMP_err("unknown option given for certificate storing format");
1014         return 0;
1015     }
1016 
1017     return 1;
1018 }
1019 
1020 static OSSL_CMP_SRV_CTX *setup_srv_ctx(ENGINE *engine)
1021 {
1022     OSSL_CMP_CTX *ctx; /* extra CMP (client) ctx partly used by server */
1023     OSSL_CMP_SRV_CTX *srv_ctx = ossl_cmp_mock_srv_new(app_get0_libctx(),
1024                                                       app_get0_propq());
1025 
1026     if (srv_ctx == NULL)
1027         return NULL;
1028     ctx = OSSL_CMP_SRV_CTX_get0_cmp_ctx(srv_ctx);
1029 
1030     if (opt_srv_ref == NULL) {
1031         if (opt_srv_cert == NULL) {
1032             /* opt_srv_cert should determine the sender */
1033             CMP_err("must give -srv_ref for mock server if no -srv_cert given");
1034             goto err;
1035         }
1036     } else {
1037         if (!OSSL_CMP_CTX_set1_referenceValue(ctx, (unsigned char *)opt_srv_ref,
1038                                               strlen(opt_srv_ref)))
1039             goto err;
1040     }
1041 
1042     if (opt_srv_secret != NULL) {
1043         int res;
1044         char *pass_str = get_passwd(opt_srv_secret, "PBMAC secret of mock server");
1045 
1046         if (pass_str != NULL) {
1047             cleanse(opt_srv_secret);
1048             res = OSSL_CMP_CTX_set1_secretValue(ctx, (unsigned char *)pass_str,
1049                                                 strlen(pass_str));
1050             clear_free(pass_str);
1051             if (res == 0)
1052                 goto err;
1053         }
1054     } else if (opt_srv_cert == NULL) {
1055         CMP_err("server credentials (-srv_secret or -srv_cert) must be given if -use_mock_srv or -port is used");
1056         goto err;
1057     } else {
1058         CMP_warn("server will not be able to handle PBM-protected requests since -srv_secret is not given");
1059     }
1060 
1061     if (opt_srv_secret == NULL
1062             && ((opt_srv_cert == NULL) != (opt_srv_key == NULL))) {
1063         CMP_err("must give both -srv_cert and -srv_key options or neither");
1064         goto err;
1065     }
1066     if (opt_srv_cert != NULL) {
1067         X509 *srv_cert = load_cert_pwd(opt_srv_cert, opt_srv_keypass,
1068                                        "certificate of the mock server");
1069 
1070         if (srv_cert == NULL || !OSSL_CMP_CTX_set1_cert(ctx, srv_cert)) {
1071             X509_free(srv_cert);
1072             goto err;
1073         }
1074         X509_free(srv_cert);
1075     }
1076     if (opt_srv_key != NULL) {
1077         EVP_PKEY *pkey = load_key_pwd(opt_srv_key, opt_keyform,
1078                                       opt_srv_keypass,
1079                                       engine, "private key for mock server cert");
1080 
1081         if (pkey == NULL || !OSSL_CMP_CTX_set1_pkey(ctx, pkey)) {
1082             EVP_PKEY_free(pkey);
1083             goto err;
1084         }
1085         EVP_PKEY_free(pkey);
1086     }
1087     cleanse(opt_srv_keypass);
1088 
1089     if (opt_srv_trusted != NULL) {
1090         X509_STORE *ts =
1091             load_trusted(opt_srv_trusted, 0, "certs trusted by mock server");
1092 
1093         if (ts == NULL || !OSSL_CMP_CTX_set0_trustedStore(ctx, ts)) {
1094             X509_STORE_free(ts);
1095             goto err;
1096         }
1097     } else {
1098         CMP_warn("mock server will not be able to handle signature-protected requests since -srv_trusted is not given");
1099     }
1100     if (!setup_certs(opt_srv_untrusted,
1101                      "untrusted certificates for mock server", ctx,
1102                      (add_X509_stack_fn_t)OSSL_CMP_CTX_set1_untrusted))
1103         goto err;
1104 
1105     if (opt_rsp_cert == NULL) {
1106         CMP_warn("no -rsp_cert given for mock server");
1107     } else {
1108         X509 *cert = load_cert_pwd(opt_rsp_cert, opt_keypass,
1109                                    "cert to be returned by the mock server");
1110 
1111         if (cert == NULL)
1112             goto err;
1113         /* from server perspective the server is the client */
1114         if (!ossl_cmp_mock_srv_set1_certOut(srv_ctx, cert)) {
1115             X509_free(cert);
1116             goto err;
1117         }
1118         X509_free(cert);
1119     }
1120     if (!setup_certs(opt_rsp_extracerts,
1121                      "CMP extra certificates for mock server", srv_ctx,
1122                      (add_X509_stack_fn_t)ossl_cmp_mock_srv_set1_chainOut))
1123         goto err;
1124     if (!setup_certs(opt_rsp_capubs, "caPubs for mock server", srv_ctx,
1125                      (add_X509_stack_fn_t)ossl_cmp_mock_srv_set1_caPubsOut))
1126         goto err;
1127     (void)ossl_cmp_mock_srv_set_pollCount(srv_ctx, opt_poll_count);
1128     (void)ossl_cmp_mock_srv_set_checkAfterTime(srv_ctx, opt_check_after);
1129     if (opt_grant_implicitconf)
1130         (void)OSSL_CMP_SRV_CTX_set_grant_implicit_confirm(srv_ctx, 1);
1131 
1132     if (opt_failure != INT_MIN) { /* option has been set explicity */
1133         if (opt_failure < 0 || OSSL_CMP_PKIFAILUREINFO_MAX < opt_failure) {
1134             CMP_err1("-failure out of range, should be >= 0 and <= %d",
1135                      OSSL_CMP_PKIFAILUREINFO_MAX);
1136             goto err;
1137         }
1138         if (opt_failurebits != 0)
1139             CMP_warn("-failurebits overrides -failure");
1140         else
1141             opt_failurebits = 1 << opt_failure;
1142     }
1143     if ((unsigned)opt_failurebits > OSSL_CMP_PKIFAILUREINFO_MAX_BIT_PATTERN) {
1144         CMP_err("-failurebits out of range");
1145         goto err;
1146     }
1147     if (!ossl_cmp_mock_srv_set_statusInfo(srv_ctx, opt_pkistatus,
1148                                           opt_failurebits, opt_statusstring))
1149         goto err;
1150 
1151     if (opt_send_error)
1152         (void)ossl_cmp_mock_srv_set_sendError(srv_ctx, 1);
1153 
1154     if (opt_send_unprotected)
1155         (void)OSSL_CMP_CTX_set_option(ctx, OSSL_CMP_OPT_UNPROTECTED_SEND, 1);
1156     if (opt_send_unprot_err)
1157         (void)OSSL_CMP_SRV_CTX_set_send_unprotected_errors(srv_ctx, 1);
1158     if (opt_accept_unprotected)
1159         (void)OSSL_CMP_SRV_CTX_set_accept_unprotected(srv_ctx, 1);
1160     if (opt_accept_unprot_err)
1161         (void)OSSL_CMP_CTX_set_option(ctx, OSSL_CMP_OPT_UNPROTECTED_ERRORS, 1);
1162     if (opt_accept_raverified)
1163         (void)OSSL_CMP_SRV_CTX_set_accept_raverified(srv_ctx, 1);
1164 
1165     return srv_ctx;
1166 
1167  err:
1168     ossl_cmp_mock_srv_free(srv_ctx);
1169     return NULL;
1170 }
1171 
1172 /*
1173  * set up verification aspects of OSSL_CMP_CTX w.r.t. opts from config file/CLI.
1174  * Returns pointer on success, NULL on error
1175  */
1176 static int setup_verification_ctx(OSSL_CMP_CTX *ctx)
1177 {
1178     if (!setup_certs(opt_untrusted, "untrusted certificates", ctx,
1179                      (add_X509_stack_fn_t)OSSL_CMP_CTX_set1_untrusted))
1180         return 0;
1181 
1182     if (opt_srvcert != NULL || opt_trusted != NULL) {
1183         X509 *srvcert;
1184         X509_STORE *ts;
1185         int ok;
1186 
1187         if (opt_srvcert != NULL) {
1188             if (opt_trusted != NULL) {
1189                 CMP_warn("-trusted option is ignored since -srvcert option is present");
1190                 opt_trusted = NULL;
1191             }
1192             if (opt_recipient != NULL) {
1193                 CMP_warn("-recipient option is ignored since -srvcert option is present");
1194                 opt_recipient = NULL;
1195             }
1196             srvcert = load_cert_pwd(opt_srvcert, opt_otherpass,
1197                                     "directly trusted CMP server certificate");
1198             ok = srvcert != NULL && OSSL_CMP_CTX_set1_srvCert(ctx, srvcert);
1199             X509_free(srvcert);
1200             if (!ok)
1201                 return 0;
1202         }
1203         if (opt_trusted != NULL) {
1204             /*
1205              * the 0 arg below clears any expected host/ip/email address;
1206              * opt_expect_sender is used instead
1207              */
1208             ts = load_trusted(opt_trusted, 0, "certs trusted by client");
1209 
1210             if (ts == NULL || !OSSL_CMP_CTX_set0_trustedStore(ctx, ts)) {
1211                 X509_STORE_free(ts);
1212                 return 0;
1213             }
1214         }
1215     }
1216 
1217     if (opt_ignore_keyusage)
1218         (void)OSSL_CMP_CTX_set_option(ctx, OSSL_CMP_OPT_IGNORE_KEYUSAGE, 1);
1219 
1220     if (opt_unprotected_errors)
1221         (void)OSSL_CMP_CTX_set_option(ctx, OSSL_CMP_OPT_UNPROTECTED_ERRORS, 1);
1222 
1223     if (opt_out_trusted != NULL) { /* for use in OSSL_CMP_certConf_cb() */
1224         X509_VERIFY_PARAM *out_vpm = NULL;
1225         X509_STORE *out_trusted =
1226             load_trusted(opt_out_trusted, 1,
1227                          "trusted certs for verifying newly enrolled cert");
1228 
1229         if (out_trusted == NULL)
1230             return 0;
1231         /* ignore any -attime here, new certs are current anyway */
1232         out_vpm = X509_STORE_get0_param(out_trusted);
1233         X509_VERIFY_PARAM_clear_flags(out_vpm, X509_V_FLAG_USE_CHECK_TIME);
1234 
1235         (void)OSSL_CMP_CTX_set_certConf_cb_arg(ctx, out_trusted);
1236     }
1237 
1238     if (opt_disable_confirm)
1239         (void)OSSL_CMP_CTX_set_option(ctx, OSSL_CMP_OPT_DISABLE_CONFIRM, 1);
1240 
1241     if (opt_implicit_confirm)
1242         (void)OSSL_CMP_CTX_set_option(ctx, OSSL_CMP_OPT_IMPLICIT_CONFIRM, 1);
1243 
1244     return 1;
1245 }
1246 
1247 #ifndef OPENSSL_NO_SOCK
1248 /*
1249  * set up ssl_ctx for the OSSL_CMP_CTX based on options from config file/CLI.
1250  * Returns pointer on success, NULL on error
1251  */
1252 static SSL_CTX *setup_ssl_ctx(OSSL_CMP_CTX *ctx, const char *host,
1253                               ENGINE *engine)
1254 {
1255     STACK_OF(X509) *untrusted = OSSL_CMP_CTX_get0_untrusted(ctx);
1256     EVP_PKEY *pkey = NULL;
1257     X509_STORE *trust_store = NULL;
1258     SSL_CTX *ssl_ctx;
1259     int i;
1260 
1261     ssl_ctx = SSL_CTX_new(TLS_client_method());
1262     if (ssl_ctx == NULL)
1263         return NULL;
1264 
1265     if (opt_tls_trusted != NULL) {
1266         trust_store = load_trusted(opt_tls_trusted, 0, "trusted TLS certs");
1267         if (trust_store == NULL)
1268             goto err;
1269         SSL_CTX_set_cert_store(ssl_ctx, trust_store);
1270     }
1271 
1272     if (opt_tls_cert != NULL && opt_tls_key != NULL) {
1273         X509 *cert;
1274         STACK_OF(X509) *certs = NULL;
1275         int ok;
1276 
1277         if (!load_cert_certs(opt_tls_cert, &cert, &certs, 0, opt_tls_keypass,
1278                              "TLS client certificate (optionally with chain)",
1279                              vpm))
1280             /* need opt_tls_keypass if opt_tls_cert is encrypted PKCS#12 file */
1281             goto err;
1282 
1283         ok = SSL_CTX_use_certificate(ssl_ctx, cert) > 0;
1284         X509_free(cert);
1285 
1286         /*
1287          * Any further certs and any untrusted certs are used for constructing
1288          * the chain to be provided with the TLS client cert to the TLS server.
1289          */
1290         if (!ok || !SSL_CTX_set0_chain(ssl_ctx, certs)) {
1291             CMP_err1("unable to use client TLS certificate file '%s'",
1292                      opt_tls_cert);
1293             sk_X509_pop_free(certs, X509_free);
1294             goto err;
1295         }
1296         for (i = 0; i < sk_X509_num(untrusted); i++) {
1297             cert = sk_X509_value(untrusted, i);
1298             if (!SSL_CTX_add1_chain_cert(ssl_ctx, cert)) {
1299                 CMP_err("could not add untrusted cert to TLS client cert chain");
1300                 goto err;
1301             }
1302         }
1303 
1304         {
1305             X509_VERIFY_PARAM *tls_vpm = NULL;
1306             unsigned long bak_flags = 0; /* compiler warns without init */
1307 
1308             if (trust_store != NULL) {
1309                 tls_vpm = X509_STORE_get0_param(trust_store);
1310                 bak_flags = X509_VERIFY_PARAM_get_flags(tls_vpm);
1311                 /* disable any cert status/revocation checking etc. */
1312                 X509_VERIFY_PARAM_clear_flags(tls_vpm,
1313                                               ~(X509_V_FLAG_USE_CHECK_TIME
1314                                                 | X509_V_FLAG_NO_CHECK_TIME
1315                                                 | X509_V_FLAG_PARTIAL_CHAIN
1316                                                 | X509_V_FLAG_POLICY_CHECK));
1317             }
1318             CMP_debug("trying to build cert chain for own TLS cert");
1319             if (SSL_CTX_build_cert_chain(ssl_ctx,
1320                                          SSL_BUILD_CHAIN_FLAG_UNTRUSTED |
1321                                          SSL_BUILD_CHAIN_FLAG_NO_ROOT)) {
1322                 CMP_debug("success building cert chain for own TLS cert");
1323             } else {
1324                 OSSL_CMP_CTX_print_errors(ctx);
1325                 CMP_warn("could not build cert chain for own TLS cert");
1326             }
1327             if (trust_store != NULL)
1328                 X509_VERIFY_PARAM_set_flags(tls_vpm, bak_flags);
1329         }
1330 
1331         /* If present we append to the list also the certs from opt_tls_extra */
1332         if (opt_tls_extra != NULL) {
1333             STACK_OF(X509) *tls_extra = load_certs_multifile(opt_tls_extra,
1334                                                              opt_otherpass,
1335                                                              "extra certificates for TLS",
1336                                                              vpm);
1337             int res = 1;
1338 
1339             if (tls_extra == NULL)
1340                 goto err;
1341             for (i = 0; i < sk_X509_num(tls_extra); i++) {
1342                 cert = sk_X509_value(tls_extra, i);
1343                 if (res != 0)
1344                     res = SSL_CTX_add_extra_chain_cert(ssl_ctx, cert);
1345                 if (res == 0)
1346                     X509_free(cert);
1347             }
1348             sk_X509_free(tls_extra);
1349             if (res == 0) {
1350                 BIO_printf(bio_err, "error: unable to add TLS extra certs\n");
1351                 goto err;
1352             }
1353         }
1354 
1355         pkey = load_key_pwd(opt_tls_key, opt_keyform, opt_tls_keypass,
1356                             engine, "TLS client private key");
1357         cleanse(opt_tls_keypass);
1358         if (pkey == NULL)
1359             goto err;
1360         /*
1361          * verify the key matches the cert,
1362          * not using SSL_CTX_check_private_key(ssl_ctx)
1363          * because it gives poor and sometimes misleading diagnostics
1364          */
1365         if (!X509_check_private_key(SSL_CTX_get0_certificate(ssl_ctx),
1366                                     pkey)) {
1367             CMP_err2("TLS private key '%s' does not match the TLS certificate '%s'\n",
1368                      opt_tls_key, opt_tls_cert);
1369             EVP_PKEY_free(pkey);
1370             pkey = NULL; /* otherwise, for some reason double free! */
1371             goto err;
1372         }
1373         if (SSL_CTX_use_PrivateKey(ssl_ctx, pkey) <= 0) {
1374             CMP_err1("unable to use TLS client private key '%s'", opt_tls_key);
1375             EVP_PKEY_free(pkey);
1376             pkey = NULL; /* otherwise, for some reason double free! */
1377             goto err;
1378         }
1379         EVP_PKEY_free(pkey); /* we do not need the handle any more */
1380     }
1381     if (opt_tls_trusted != NULL) {
1382         /* enable and parameterize server hostname/IP address check */
1383         if (!truststore_set_host_etc(trust_store,
1384                                      opt_tls_host != NULL ? opt_tls_host : host))
1385             goto err;
1386         SSL_CTX_set_verify(ssl_ctx, SSL_VERIFY_PEER, NULL);
1387     }
1388     return ssl_ctx;
1389  err:
1390     SSL_CTX_free(ssl_ctx);
1391     return NULL;
1392 }
1393 #endif /* OPENSSL_NO_SOCK */
1394 
1395 /*
1396  * set up protection aspects of OSSL_CMP_CTX based on options from config
1397  * file/CLI while parsing options and checking their consistency.
1398  * Returns 1 on success, 0 on error
1399  */
1400 static int setup_protection_ctx(OSSL_CMP_CTX *ctx, ENGINE *engine)
1401 {
1402     if (!opt_unprotected_requests && opt_secret == NULL && opt_key == NULL) {
1403         CMP_err("must give -key or -secret unless -unprotected_requests is used");
1404         return 0;
1405     }
1406 
1407     if (opt_ref == NULL && opt_cert == NULL && opt_subject == NULL) {
1408         /* cert or subject should determine the sender */
1409         CMP_err("must give -ref if no -cert and no -subject given");
1410         return 0;
1411     }
1412     if (!opt_secret && ((opt_cert == NULL) != (opt_key == NULL))) {
1413         CMP_err("must give both -cert and -key options or neither");
1414         return 0;
1415     }
1416     if (opt_secret != NULL) {
1417         char *pass_string = get_passwd(opt_secret, "PBMAC");
1418         int res;
1419 
1420         if (pass_string != NULL) {
1421             cleanse(opt_secret);
1422             res = OSSL_CMP_CTX_set1_secretValue(ctx,
1423                                                 (unsigned char *)pass_string,
1424                                                 strlen(pass_string));
1425             clear_free(pass_string);
1426             if (res == 0)
1427                 return 0;
1428         }
1429         if (opt_cert != NULL || opt_key != NULL)
1430             CMP_warn("-cert and -key not used for protection since -secret is given");
1431     }
1432     if (opt_ref != NULL
1433             && !OSSL_CMP_CTX_set1_referenceValue(ctx, (unsigned char *)opt_ref,
1434                                                  strlen(opt_ref)))
1435         return 0;
1436 
1437     if (opt_key != NULL) {
1438         EVP_PKEY *pkey = load_key_pwd(opt_key, opt_keyform, opt_keypass, engine,
1439                                       "private key for CMP client certificate");
1440 
1441         if (pkey == NULL || !OSSL_CMP_CTX_set1_pkey(ctx, pkey)) {
1442             EVP_PKEY_free(pkey);
1443             return 0;
1444         }
1445         EVP_PKEY_free(pkey);
1446     }
1447     if (opt_secret == NULL && opt_srvcert == NULL && opt_trusted == NULL)
1448         CMP_warn("will not authenticate server due to missing -secret, -trusted, or -srvcert");
1449 
1450     if (opt_cert != NULL) {
1451         X509 *cert;
1452         STACK_OF(X509) *certs = NULL;
1453         X509_STORE *own_trusted = NULL;
1454         int ok;
1455 
1456         if (!load_cert_certs(opt_cert, &cert, &certs, 0, opt_keypass,
1457                              "CMP client certificate (optionally with chain)",
1458                              vpm))
1459             /* opt_keypass is needed if opt_cert is an encrypted PKCS#12 file */
1460             return 0;
1461         ok = OSSL_CMP_CTX_set1_cert(ctx, cert);
1462         X509_free(cert);
1463         if (!ok) {
1464             CMP_err("out of memory");
1465         } else {
1466             if (opt_own_trusted != NULL) {
1467                 own_trusted = load_trusted(opt_own_trusted, 0,
1468                                            "trusted certs for verifying own CMP signer cert");
1469                 ok = own_trusted != NULL;
1470             }
1471             ok = ok && OSSL_CMP_CTX_build_cert_chain(ctx, own_trusted, certs);
1472         }
1473         X509_STORE_free(own_trusted);
1474         sk_X509_pop_free(certs, X509_free);
1475         if (!ok)
1476             return 0;
1477     } else if (opt_own_trusted != NULL) {
1478         CMP_warn("-own_trusted option is ignored without -cert");
1479     }
1480 
1481     if (!setup_certs(opt_extracerts, "extra certificates for CMP", ctx,
1482                      (add_X509_stack_fn_t)OSSL_CMP_CTX_set1_extraCertsOut))
1483         return 0;
1484     cleanse(opt_otherpass);
1485 
1486     if (opt_unprotected_requests)
1487         (void)OSSL_CMP_CTX_set_option(ctx, OSSL_CMP_OPT_UNPROTECTED_SEND, 1);
1488 
1489     if (opt_digest != NULL) {
1490         int digest = OBJ_ln2nid(opt_digest);
1491 
1492         if (digest == NID_undef) {
1493             CMP_err1("digest algorithm name not recognized: '%s'", opt_digest);
1494             return 0;
1495         }
1496         if (!OSSL_CMP_CTX_set_option(ctx, OSSL_CMP_OPT_DIGEST_ALGNID, digest)
1497             || !OSSL_CMP_CTX_set_option(ctx, OSSL_CMP_OPT_OWF_ALGNID, digest)) {
1498             CMP_err1("digest algorithm name not supported: '%s'", opt_digest);
1499             return 0;
1500         }
1501     }
1502 
1503     if (opt_mac != NULL) {
1504         int mac = OBJ_ln2nid(opt_mac);
1505         if (mac == NID_undef) {
1506             CMP_err1("MAC algorithm name not recognized: '%s'", opt_mac);
1507             return 0;
1508         }
1509         (void)OSSL_CMP_CTX_set_option(ctx, OSSL_CMP_OPT_MAC_ALGNID, mac);
1510     }
1511     return 1;
1512 }
1513 
1514 /*
1515  * set up IR/CR/KUR/CertConf/RR specific parts of the OSSL_CMP_CTX
1516  * based on options from config file/CLI.
1517  * Returns pointer on success, NULL on error
1518  */
1519 static int setup_request_ctx(OSSL_CMP_CTX *ctx, ENGINE *engine)
1520 {
1521     X509_REQ *csr = NULL;
1522     X509_EXTENSIONS *exts = NULL;
1523     X509V3_CTX ext_ctx;
1524 
1525     if (opt_subject == NULL
1526             && opt_csr == NULL && opt_oldcert == NULL && opt_cert == NULL
1527             && opt_cmd != CMP_RR && opt_cmd != CMP_GENM)
1528         CMP_warn("no -subject given; no -csr or -oldcert or -cert available for fallback");
1529 
1530     if (opt_cmd == CMP_IR || opt_cmd == CMP_CR || opt_cmd == CMP_KUR) {
1531         if (opt_newkey == NULL
1532             && opt_key == NULL && opt_csr == NULL && opt_oldcert == NULL) {
1533             CMP_err("missing -newkey (or -key) to be certified and no -csr, -oldcert, or -cert given for fallback public key");
1534             return 0;
1535         }
1536         if (opt_newkey == NULL
1537             && opt_popo != OSSL_CRMF_POPO_NONE
1538             && opt_popo != OSSL_CRMF_POPO_RAVERIFIED) {
1539             if (opt_csr != NULL) {
1540                 CMP_err1("no -newkey option given with private key for POPO, -csr option only provides public key%s",
1541                         opt_key == NULL ? "" :
1542                         ", and -key option superseded by by -csr");
1543                 return 0;
1544             }
1545             if (opt_key == NULL) {
1546                 CMP_err("missing -newkey (or -key) option for POPO");
1547                 return 0;
1548             }
1549         }
1550         if (opt_certout == NULL) {
1551             CMP_err("-certout not given, nowhere to save newly enrolled certificate");
1552             return 0;
1553         }
1554         if (!set_name(opt_subject, OSSL_CMP_CTX_set1_subjectName, ctx, "subject")
1555                 || !set_name(opt_issuer, OSSL_CMP_CTX_set1_issuer, ctx, "issuer"))
1556             return 0;
1557     } else {
1558         const char *msg = "option is ignored for commands other than 'ir', 'cr', and 'kur'";
1559 
1560         if (opt_subject != NULL) {
1561             if (opt_ref == NULL && opt_cert == NULL) {
1562                 /* use subject as default sender unless oldcert subject is used */
1563                 if (!set_name(opt_subject, OSSL_CMP_CTX_set1_subjectName, ctx, "subject"))
1564                     return 0;
1565             } else {
1566                 CMP_warn1("-subject %s since -ref or -cert is given", msg);
1567             }
1568         }
1569         if (opt_issuer != NULL)
1570             CMP_warn1("-issuer %s", msg);
1571         if (opt_reqexts != NULL)
1572             CMP_warn1("-reqexts %s", msg);
1573         if (opt_san_nodefault)
1574             CMP_warn1("-san_nodefault %s", msg);
1575         if (opt_sans != NULL)
1576             CMP_warn1("-sans %s", msg);
1577         if (opt_policies != NULL)
1578             CMP_warn1("-policies %s", msg);
1579         if (opt_policy_oids != NULL)
1580             CMP_warn1("-policy_oids %s", msg);
1581     }
1582     if (opt_cmd == CMP_KUR) {
1583         char *ref_cert = opt_oldcert != NULL ? opt_oldcert : opt_cert;
1584 
1585         if (ref_cert == NULL && opt_csr == NULL) {
1586             CMP_err("missing -oldcert for certificate to be updated and no -csr given");
1587             return 0;
1588         }
1589         if (opt_subject != NULL)
1590             CMP_warn2("given -subject '%s' overrides the subject of '%s' for KUR",
1591                       opt_subject, ref_cert != NULL ? ref_cert : opt_csr);
1592     }
1593     if (opt_cmd == CMP_RR) {
1594         if (opt_oldcert == NULL && opt_csr == NULL) {
1595             CMP_err("missing -oldcert for certificate to be revoked and no -csr given");
1596             return 0;
1597         }
1598         if (opt_oldcert != NULL && opt_csr != NULL)
1599             CMP_warn("ignoring -csr since certificate to be revoked is given");
1600     }
1601     if (opt_cmd == CMP_P10CR && opt_csr == NULL) {
1602         CMP_err("missing PKCS#10 CSR for p10cr");
1603         return 0;
1604     }
1605 
1606     if (opt_recipient == NULL && opt_srvcert == NULL && opt_issuer == NULL
1607             && opt_oldcert == NULL && opt_cert == NULL)
1608         CMP_warn("missing -recipient, -srvcert, -issuer, -oldcert or -cert; recipient will be set to \"NULL-DN\"");
1609 
1610     if (opt_cmd == CMP_P10CR || opt_cmd == CMP_RR) {
1611         const char *msg = "option is ignored for 'p10cr' and 'rr' commands";
1612 
1613         if (opt_newkeypass != NULL)
1614             CMP_warn1("-newkeytype %s", msg);
1615         if (opt_newkey != NULL)
1616             CMP_warn1("-newkey %s", msg);
1617         if (opt_days != 0)
1618             CMP_warn1("-days %s", msg);
1619         if (opt_popo != OSSL_CRMF_POPO_NONE - 1)
1620             CMP_warn1("-popo %s", msg);
1621     } else if (opt_newkey != NULL) {
1622         const char *file = opt_newkey;
1623         const int format = opt_keyform;
1624         const char *pass = opt_newkeypass;
1625         const char *desc = "new private key for cert to be enrolled";
1626         EVP_PKEY *pkey;
1627         int priv = 1;
1628         BIO *bio_bak = bio_err;
1629 
1630         bio_err = NULL; /* suppress diagnostics on first try loading key */
1631         pkey = load_key_pwd(file, format, pass, engine, desc);
1632         bio_err = bio_bak;
1633         if (pkey == NULL) {
1634             ERR_clear_error();
1635             desc = opt_csr == NULL
1636             ? "fallback public key for cert to be enrolled"
1637             : "public key for checking cert resulting from p10cr";
1638             pkey = load_pubkey(file, format, 0, pass, engine, desc);
1639             priv = 0;
1640         }
1641         cleanse(opt_newkeypass);
1642         if (pkey == NULL || !OSSL_CMP_CTX_set0_newPkey(ctx, priv, pkey)) {
1643             EVP_PKEY_free(pkey);
1644             return 0;
1645         }
1646     }
1647 
1648     if (opt_days > 0
1649             && !OSSL_CMP_CTX_set_option(ctx, OSSL_CMP_OPT_VALIDITY_DAYS,
1650                                         opt_days)) {
1651         CMP_err("could not set requested cert validity period");
1652         return 0;
1653     }
1654 
1655     if (opt_policies != NULL && opt_policy_oids != NULL) {
1656         CMP_err("cannot have policies both via -policies and via -policy_oids");
1657         return 0;
1658     }
1659 
1660     if (opt_csr != NULL) {
1661         if (opt_cmd == CMP_GENM) {
1662             CMP_warn("-csr option is ignored for command 'genm'");
1663         } else {
1664             if ((csr = load_csr_autofmt(opt_csr, "PKCS#10 CSR")) == NULL)
1665                 return 0;
1666             if (!OSSL_CMP_CTX_set1_p10CSR(ctx, csr))
1667                 goto oom;
1668         }
1669     }
1670     if (opt_reqexts != NULL || opt_policies != NULL) {
1671         if ((exts = sk_X509_EXTENSION_new_null()) == NULL)
1672             goto oom;
1673         X509V3_set_ctx(&ext_ctx, NULL, NULL, csr, NULL, X509V3_CTX_REPLACE);
1674         X509V3_set_nconf(&ext_ctx, conf);
1675         if (opt_reqexts != NULL
1676             && !X509V3_EXT_add_nconf_sk(conf, &ext_ctx, opt_reqexts, &exts)) {
1677             CMP_err1("cannot load certificate request extension section '%s'",
1678                      opt_reqexts);
1679             goto exts_err;
1680         }
1681         if (opt_policies != NULL
1682             && !X509V3_EXT_add_nconf_sk(conf, &ext_ctx, opt_policies, &exts)) {
1683             CMP_err1("cannot load policy cert request extension section '%s'",
1684                      opt_policies);
1685             goto exts_err;
1686         }
1687         OSSL_CMP_CTX_set0_reqExtensions(ctx, exts);
1688     }
1689     X509_REQ_free(csr);
1690     /* After here, must not goto oom/exts_err */
1691 
1692     if (OSSL_CMP_CTX_reqExtensions_have_SAN(ctx) && opt_sans != NULL) {
1693         CMP_err("cannot have Subject Alternative Names both via -reqexts and via -sans");
1694         return 0;
1695     }
1696     if (!set_gennames(ctx, opt_sans, "Subject Alternative Name"))
1697         return 0;
1698 
1699     if (opt_san_nodefault) {
1700         if (opt_sans != NULL)
1701             CMP_warn("-opt_san_nodefault has no effect when -sans is used");
1702         (void)OSSL_CMP_CTX_set_option(ctx,
1703                                       OSSL_CMP_OPT_SUBJECTALTNAME_NODEFAULT, 1);
1704     }
1705 
1706     if (opt_policy_oids_critical) {
1707         if (opt_policy_oids == NULL)
1708             CMP_warn("-opt_policy_oids_critical has no effect unless -policy_oids is given");
1709         (void)OSSL_CMP_CTX_set_option(ctx, OSSL_CMP_OPT_POLICIES_CRITICAL, 1);
1710     }
1711 
1712     while (opt_policy_oids != NULL) {
1713         ASN1_OBJECT *policy;
1714         POLICYINFO *pinfo;
1715         char *next = next_item(opt_policy_oids);
1716 
1717         if ((policy = OBJ_txt2obj(opt_policy_oids, 1)) == 0) {
1718             CMP_err1("unknown policy OID '%s'", opt_policy_oids);
1719             return 0;
1720         }
1721 
1722         if ((pinfo = POLICYINFO_new()) == NULL) {
1723             ASN1_OBJECT_free(policy);
1724             return 0;
1725         }
1726         pinfo->policyid = policy;
1727 
1728         if (!OSSL_CMP_CTX_push0_policy(ctx, pinfo)) {
1729             CMP_err1("cannot add policy with OID '%s'", opt_policy_oids);
1730             POLICYINFO_free(pinfo);
1731             return 0;
1732         }
1733         opt_policy_oids = next;
1734     }
1735 
1736     if (opt_popo >= OSSL_CRMF_POPO_NONE)
1737         (void)OSSL_CMP_CTX_set_option(ctx, OSSL_CMP_OPT_POPO_METHOD, opt_popo);
1738 
1739     if (opt_oldcert != NULL) {
1740         if (opt_cmd == CMP_GENM) {
1741             CMP_warn("-oldcert option is ignored for command 'genm'");
1742         } else {
1743             X509 *oldcert = load_cert_pwd(opt_oldcert, opt_keypass,
1744                                           opt_cmd == CMP_KUR ?
1745                                           "certificate to be updated" :
1746                                           opt_cmd == CMP_RR ?
1747                                           "certificate to be revoked" :
1748                                           "reference certificate (oldcert)");
1749             /* opt_keypass needed if opt_oldcert is an encrypted PKCS#12 file */
1750 
1751             if (oldcert == NULL)
1752                 return 0;
1753             if (!OSSL_CMP_CTX_set1_oldCert(ctx, oldcert)) {
1754                 X509_free(oldcert);
1755                 CMP_err("out of memory");
1756                 return 0;
1757             }
1758             X509_free(oldcert);
1759         }
1760     }
1761     cleanse(opt_keypass);
1762     if (opt_revreason > CRL_REASON_NONE)
1763         (void)OSSL_CMP_CTX_set_option(ctx, OSSL_CMP_OPT_REVOCATION_REASON,
1764                                       opt_revreason);
1765 
1766     return 1;
1767 
1768  oom:
1769     CMP_err("out of memory");
1770  exts_err:
1771     sk_X509_EXTENSION_pop_free(exts, X509_EXTENSION_free);
1772     X509_REQ_free(csr);
1773     return 0;
1774 }
1775 
1776 static int handle_opt_geninfo(OSSL_CMP_CTX *ctx)
1777 {
1778     long value;
1779     ASN1_OBJECT *type;
1780     ASN1_INTEGER *aint;
1781     ASN1_TYPE *val;
1782     OSSL_CMP_ITAV *itav;
1783     char *endstr;
1784     char *valptr = strchr(opt_geninfo, ':');
1785 
1786     if (valptr == NULL) {
1787         CMP_err("missing ':' in -geninfo option");
1788         return 0;
1789     }
1790     valptr[0] = '\0';
1791     valptr++;
1792 
1793     if (OPENSSL_strncasecmp(valptr, "int:", 4) != 0) {
1794         CMP_err("missing 'int:' in -geninfo option");
1795         return 0;
1796     }
1797     valptr += 4;
1798 
1799     value = strtol(valptr, &endstr, 10);
1800     if (endstr == valptr || *endstr != '\0') {
1801         CMP_err("cannot parse int in -geninfo option");
1802         return 0;
1803     }
1804 
1805     type = OBJ_txt2obj(opt_geninfo, 1);
1806     if (type == NULL) {
1807         CMP_err("cannot parse OID in -geninfo option");
1808         return 0;
1809     }
1810 
1811     if ((aint = ASN1_INTEGER_new()) == NULL)
1812         goto oom;
1813 
1814     val = ASN1_TYPE_new();
1815     if (!ASN1_INTEGER_set(aint, value) || val == NULL) {
1816         ASN1_INTEGER_free(aint);
1817         goto oom;
1818     }
1819     ASN1_TYPE_set(val, V_ASN1_INTEGER, aint);
1820     itav = OSSL_CMP_ITAV_create(type, val);
1821     if (itav == NULL) {
1822         ASN1_TYPE_free(val);
1823         goto oom;
1824     }
1825 
1826     if (!OSSL_CMP_CTX_push0_geninfo_ITAV(ctx, itav)) {
1827         OSSL_CMP_ITAV_free(itav);
1828         return 0;
1829     }
1830     return 1;
1831 
1832  oom:
1833     ASN1_OBJECT_free(type);
1834     CMP_err("out of memory");
1835     return 0;
1836 }
1837 
1838 
1839 /*
1840  * set up the client-side OSSL_CMP_CTX based on options from config file/CLI
1841  * while parsing options and checking their consistency.
1842  * Prints reason for error to bio_err.
1843  * Returns 1 on success, 0 on error
1844  */
1845 static int setup_client_ctx(OSSL_CMP_CTX *ctx, ENGINE *engine)
1846 {
1847     int ret = 0;
1848     char *host = NULL, *port = NULL, *path = NULL, *used_path = opt_path;
1849 #ifndef OPENSSL_NO_SOCK
1850     int portnum, ssl;
1851     static char server_port[32] = { '\0' };
1852     const char *proxy_host = NULL;
1853 #endif
1854     char server_buf[200] = "mock server";
1855     char proxy_buf[200] = "";
1856 
1857     if (!opt_use_mock_srv && opt_rspin == NULL) { /* note: -port is not given */
1858 #ifndef OPENSSL_NO_SOCK
1859         if (opt_server == NULL) {
1860             CMP_err("missing -server or -use_mock_srv or -rspin option");
1861             goto err;
1862         }
1863 #else
1864         CMP_err("missing -use_mock_srv or -rspin option; -server option is not supported due to no-sock build");
1865         goto err;
1866 #endif
1867     }
1868 #ifndef OPENSSL_NO_SOCK
1869     if (opt_server == NULL) {
1870         if (opt_proxy != NULL)
1871             CMP_warn("ignoring -proxy option since -server is not given");
1872         if (opt_no_proxy != NULL)
1873             CMP_warn("ignoring -no_proxy option since -server is not given");
1874         if (opt_tls_used) {
1875             CMP_warn("ignoring -tls_used option since -server is not given");
1876             opt_tls_used = 0;
1877         }
1878         goto set_path;
1879     }
1880     if (!OSSL_HTTP_parse_url(opt_server, &ssl, NULL /* user */, &host, &port,
1881                              &portnum, &path, NULL /* q */, NULL /* frag */)) {
1882         CMP_err1("cannot parse -server URL: %s", opt_server);
1883         goto err;
1884     }
1885     if (ssl && !opt_tls_used) {
1886         CMP_err("missing -tls_used option since -server URL indicates https");
1887         goto err;
1888     }
1889 
1890     BIO_snprintf(server_port, sizeof(server_port), "%s", port);
1891     if (opt_path == NULL)
1892         used_path = path;
1893     if (!OSSL_CMP_CTX_set1_server(ctx, host)
1894             || !OSSL_CMP_CTX_set_serverPort(ctx, portnum))
1895         goto oom;
1896     if (opt_proxy != NULL && !OSSL_CMP_CTX_set1_proxy(ctx, opt_proxy))
1897         goto oom;
1898     if (opt_no_proxy != NULL && !OSSL_CMP_CTX_set1_no_proxy(ctx, opt_no_proxy))
1899         goto oom;
1900     (void)BIO_snprintf(server_buf, sizeof(server_buf), "http%s://%s:%s/%s",
1901                        opt_tls_used ? "s" : "", host, port,
1902                        *used_path == '/' ? used_path + 1 : used_path);
1903 
1904     proxy_host = OSSL_HTTP_adapt_proxy(opt_proxy, opt_no_proxy, host, ssl);
1905     if (proxy_host != NULL)
1906         (void)BIO_snprintf(proxy_buf, sizeof(proxy_buf), " via %s", proxy_host);
1907 
1908  set_path:
1909 #endif
1910 
1911     if (!OSSL_CMP_CTX_set1_serverPath(ctx, used_path))
1912         goto oom;
1913     if (!transform_opts())
1914         goto err;
1915 
1916     if (opt_infotype_s != NULL) {
1917         char id_buf[100] = "id-it-";
1918 
1919         strncat(id_buf, opt_infotype_s, sizeof(id_buf) - strlen(id_buf) - 1);
1920         if ((opt_infotype = OBJ_sn2nid(id_buf)) == NID_undef) {
1921             CMP_err("unknown OID name in -infotype option");
1922             goto err;
1923         }
1924     }
1925 
1926     if (!setup_verification_ctx(ctx))
1927         goto err;
1928 
1929     if (opt_keep_alive != 1)
1930         (void)OSSL_CMP_CTX_set_option(ctx, OSSL_CMP_OPT_KEEP_ALIVE,
1931                                       opt_keep_alive);
1932     if (opt_total_timeout > 0 && opt_msg_timeout > 0
1933             && opt_total_timeout < opt_msg_timeout) {
1934         CMP_err2("-total_timeout argument = %d must not be < %d (-msg_timeout)",
1935                  opt_total_timeout, opt_msg_timeout);
1936         goto err;
1937     }
1938     if (opt_msg_timeout >= 0) /* must do this before setup_ssl_ctx() */
1939         (void)OSSL_CMP_CTX_set_option(ctx, OSSL_CMP_OPT_MSG_TIMEOUT,
1940                                       opt_msg_timeout);
1941     if (opt_total_timeout >= 0)
1942         (void)OSSL_CMP_CTX_set_option(ctx, OSSL_CMP_OPT_TOTAL_TIMEOUT,
1943                                       opt_total_timeout);
1944 
1945     if (opt_rspin != NULL) {
1946         rspin_in_use = 1;
1947         if (opt_reqin != NULL)
1948             CMP_warn("-reqin is ignored since -rspin is present");
1949     }
1950     if (opt_reqin_new_tid && opt_reqin == NULL)
1951         CMP_warn("-reqin_new_tid is ignored since -reqin is not present");
1952     if (opt_reqin != NULL || opt_reqout != NULL
1953             || opt_rspin != NULL || opt_rspout != NULL || opt_use_mock_srv)
1954         (void)OSSL_CMP_CTX_set_transfer_cb(ctx, read_write_req_resp);
1955 
1956 #ifndef OPENSSL_NO_SOCK
1957     if (opt_tls_used) {
1958         APP_HTTP_TLS_INFO *info;
1959 
1960         if (opt_tls_cert != NULL
1961             || opt_tls_key != NULL || opt_tls_keypass != NULL) {
1962             if (opt_tls_key == NULL) {
1963                 CMP_err("missing -tls_key option");
1964                 goto err;
1965             } else if (opt_tls_cert == NULL) {
1966                 CMP_err("missing -tls_cert option");
1967                 goto err;
1968             }
1969         }
1970 
1971         if ((info = OPENSSL_zalloc(sizeof(*info))) == NULL)
1972             goto err;
1973         (void)OSSL_CMP_CTX_set_http_cb_arg(ctx, info);
1974         info->ssl_ctx = setup_ssl_ctx(ctx, host, engine);
1975         info->server = host;
1976         host = NULL; /* prevent deallocation */
1977         if ((info->port = OPENSSL_strdup(server_port)) == NULL)
1978             goto err;
1979         /* workaround for callback design flaw, see #17088: */
1980         info->use_proxy = proxy_host != NULL;
1981         info->timeout = OSSL_CMP_CTX_get_option(ctx, OSSL_CMP_OPT_MSG_TIMEOUT);
1982 
1983         if (info->ssl_ctx == NULL)
1984             goto err;
1985         (void)OSSL_CMP_CTX_set_http_cb(ctx, app_http_tls_cb);
1986     }
1987 #endif
1988 
1989     if (!setup_protection_ctx(ctx, engine))
1990         goto err;
1991 
1992     if (!setup_request_ctx(ctx, engine))
1993         goto err;
1994 
1995     if (!set_name(opt_recipient, OSSL_CMP_CTX_set1_recipient, ctx, "recipient")
1996             || !set_name(opt_expect_sender, OSSL_CMP_CTX_set1_expected_sender,
1997                          ctx, "expected sender"))
1998         goto err;
1999 
2000     if (opt_geninfo != NULL && !handle_opt_geninfo(ctx))
2001         goto err;
2002 
2003     /* not printing earlier, to minimize confusion in case setup fails before */
2004     if (opt_rspin != NULL)
2005         CMP_info2("will contact %s%s "
2006                   "only if -rspin argument gives too few filenames",
2007                   server_buf, proxy_buf);
2008     else
2009         CMP_info2("will contact %s%s", server_buf, proxy_buf);
2010 
2011     ret = 1;
2012 
2013  err:
2014     OPENSSL_free(host);
2015     OPENSSL_free(port);
2016     OPENSSL_free(path);
2017     return ret;
2018  oom:
2019     CMP_err("out of memory");
2020     goto err;
2021 }
2022 
2023 /*
2024  * write out the given certificate to the output specified by bio.
2025  * Depending on options use either PEM or DER format.
2026  * Returns 1 on success, 0 on error
2027  */
2028 static int write_cert(BIO *bio, X509 *cert)
2029 {
2030     if ((opt_certform == FORMAT_PEM && PEM_write_bio_X509(bio, cert))
2031             || (opt_certform == FORMAT_ASN1 && i2d_X509_bio(bio, cert)))
2032         return 1;
2033     if (opt_certform != FORMAT_PEM && opt_certform != FORMAT_ASN1)
2034         BIO_printf(bio_err,
2035                    "error: unsupported type '%s' for writing certificates\n",
2036                    opt_certform_s);
2037     return 0;
2038 }
2039 
2040 /*
2041  * If destFile != NULL writes out a stack of certs to the given file.
2042  * In any case frees the certs.
2043  * Depending on options use either PEM or DER format,
2044  * where DER does not make much sense for writing more than one cert!
2045  * Returns number of written certificates on success, -1 on error.
2046  */
2047 static int save_free_certs(OSSL_CMP_CTX *ctx,
2048                            STACK_OF(X509) *certs, char *destFile, char *desc)
2049 {
2050     BIO *bio = NULL;
2051     int i;
2052     int n = sk_X509_num(certs);
2053 
2054     if (destFile == NULL)
2055         goto end;
2056     CMP_info3("received %d %s certificate(s), saving to file '%s'",
2057               n, desc, destFile);
2058     if (n > 1 && opt_certform != FORMAT_PEM)
2059         CMP_warn("saving more than one certificate in non-PEM format");
2060 
2061     if (destFile == NULL || (bio = BIO_new(BIO_s_file())) == NULL
2062             || !BIO_write_filename(bio, (char *)destFile)) {
2063         CMP_err1("could not open file '%s' for writing", destFile);
2064         n = -1;
2065         goto end;
2066     }
2067 
2068     for (i = 0; i < n; i++) {
2069         if (!write_cert(bio, sk_X509_value(certs, i))) {
2070             CMP_err1("cannot write certificate to file '%s'", destFile);
2071             n = -1;
2072             goto end;
2073         }
2074     }
2075 
2076  end:
2077     BIO_free(bio);
2078     sk_X509_pop_free(certs, X509_free);
2079     return n;
2080 }
2081 
2082 static void print_itavs(STACK_OF(OSSL_CMP_ITAV) *itavs)
2083 {
2084     OSSL_CMP_ITAV *itav = NULL;
2085     char buf[128];
2086     int i, r;
2087     int n = sk_OSSL_CMP_ITAV_num(itavs); /* itavs == NULL leads to 0 */
2088 
2089     if (n == 0) {
2090         CMP_info("genp contains no ITAV");
2091         return;
2092     }
2093 
2094     for (i = 0; i < n; i++) {
2095         itav = sk_OSSL_CMP_ITAV_value(itavs, i);
2096         r = OBJ_obj2txt(buf, 128, OSSL_CMP_ITAV_get0_type(itav), 0);
2097         if (r < 0)
2098             CMP_err("could not get ITAV details");
2099         else if (r == 0)
2100             CMP_info("genp contains empty ITAV");
2101         else
2102             CMP_info1("genp contains ITAV of type: %s", buf);
2103     }
2104 }
2105 
2106 static char opt_item[SECTION_NAME_MAX + 1];
2107 /* get previous name from a comma or space-separated list of names */
2108 static const char *prev_item(const char *opt, const char *end)
2109 {
2110     const char *beg;
2111     size_t len;
2112 
2113     if (end == opt)
2114         return NULL;
2115     beg = end;
2116     while (beg > opt) {
2117         --beg;
2118         if (beg[0] == ',' || isspace(_UC(beg[0]))) {
2119             ++beg;
2120             break;
2121         }
2122     }
2123     len = end - beg;
2124     if (len > SECTION_NAME_MAX) {
2125         CMP_warn3("using only first %d characters of section name starting with \"%.*s\"",
2126                   SECTION_NAME_MAX, SECTION_NAME_MAX, beg);
2127         len = SECTION_NAME_MAX;
2128     }
2129     memcpy(opt_item, beg, len);
2130     opt_item[len] = '\0';
2131     while (beg > opt) {
2132         --beg;
2133         if (beg[0] != ',' && !isspace(_UC(beg[0]))) {
2134             ++beg;
2135             break;
2136         }
2137     }
2138     return beg;
2139 }
2140 
2141 /* get str value for name from a comma-separated hierarchy of config sections */
2142 static char *conf_get_string(const CONF *src_conf, const char *groups,
2143                              const char *name)
2144 {
2145     char *res = NULL;
2146     const char *end = groups + strlen(groups);
2147 
2148     while ((end = prev_item(groups, end)) != NULL) {
2149         if ((res = NCONF_get_string(src_conf, opt_item, name)) != NULL)
2150             return res;
2151         ERR_clear_error();
2152     }
2153     return res;
2154 }
2155 
2156 /* get long val for name from a comma-separated hierarchy of config sections */
2157 static int conf_get_number_e(const CONF *conf_, const char *groups,
2158                              const char *name, long *result)
2159 {
2160     char *str = conf_get_string(conf_, groups, name);
2161     char *tailptr;
2162     long res;
2163 
2164     if (str == NULL || *str == '\0')
2165         return 0;
2166 
2167     res = strtol(str, &tailptr, 10);
2168     if (res == LONG_MIN || res == LONG_MAX || *tailptr != '\0')
2169         return 0;
2170 
2171     *result = res;
2172     return 1;
2173 }
2174 
2175 /*
2176  * use the command line option table to read values from the CMP section
2177  * of openssl.cnf.  Defaults are taken from the config file, they can be
2178  * overwritten on the command line.
2179  */
2180 static int read_config(void)
2181 {
2182     unsigned int i;
2183     long num = 0;
2184     char *txt = NULL;
2185     const OPTIONS *opt;
2186     int start_opt = OPT_VERBOSITY - OPT_HELP;
2187     int start_idx = OPT_VERBOSITY - 2;
2188     /*
2189      * starting with offset OPT_VERBOSITY because OPT_CONFIG and OPT_SECTION
2190      * would not make sense within the config file.
2191      */
2192     int n_options = OSSL_NELEM(cmp_options) - 1;
2193 
2194     for (opt = &cmp_options[start_opt], i = start_idx;
2195          opt->name != NULL; i++, opt++)
2196         if (!strcmp(opt->name, OPT_SECTION_STR)
2197                 || !strcmp(opt->name, OPT_MORE_STR))
2198             n_options--;
2199     OPENSSL_assert(OSSL_NELEM(cmp_vars) == n_options
2200                  + OPT_PROV__FIRST + 1 - OPT_PROV__LAST
2201                  + OPT_R__FIRST + 1 - OPT_R__LAST
2202                  + OPT_V__FIRST + 1 - OPT_V__LAST);
2203     for (opt = &cmp_options[start_opt], i = start_idx;
2204          opt->name != NULL; i++, opt++) {
2205         int provider_option = (OPT_PROV__FIRST <= opt->retval
2206                                && opt->retval < OPT_PROV__LAST);
2207         int rand_state_option = (OPT_R__FIRST <= opt->retval
2208                                  && opt->retval < OPT_R__LAST);
2209         int verification_option = (OPT_V__FIRST <= opt->retval
2210                                    && opt->retval < OPT_V__LAST);
2211 
2212         if (strcmp(opt->name, OPT_SECTION_STR) == 0
2213                 || strcmp(opt->name, OPT_MORE_STR) == 0) {
2214             i--;
2215             continue;
2216         }
2217         if (provider_option || rand_state_option || verification_option)
2218             i--;
2219         switch (opt->valtype) {
2220         case '-':
2221         case 'p':
2222         case 'n':
2223         case 'N':
2224         case 'l':
2225             if (!conf_get_number_e(conf, opt_section, opt->name, &num)) {
2226                 ERR_clear_error();
2227                 continue; /* option not provided */
2228             }
2229             if (opt->valtype == 'p' && num <= 0) {
2230                 opt_printf_stderr("Non-positive number \"%ld\" for config option -%s\n",
2231                                   num, opt->name);
2232                 return -1;
2233             }
2234             if (opt->valtype == 'N' && num < 0) {
2235                 opt_printf_stderr("Negative number \"%ld\" for config option -%s\n",
2236                                   num, opt->name);
2237                 return -1;
2238             }
2239             break;
2240         case 's':
2241         case '>':
2242         case 'M':
2243             txt = conf_get_string(conf, opt_section, opt->name);
2244             if (txt == NULL) {
2245                 ERR_clear_error();
2246                 continue; /* option not provided */
2247             }
2248             break;
2249         default:
2250             CMP_err2("internal: unsupported type '%c' for option '%s'",
2251                      opt->valtype, opt->name);
2252             return 0;
2253             break;
2254         }
2255         if (provider_option || verification_option) {
2256             int conf_argc = 1;
2257             char *conf_argv[3];
2258             char arg1[82];
2259 
2260             BIO_snprintf(arg1, 81, "-%s", (char *)opt->name);
2261             conf_argv[0] = prog;
2262             conf_argv[1] = arg1;
2263             if (opt->valtype == '-') {
2264                 if (num != 0)
2265                     conf_argc = 2;
2266             } else {
2267                 conf_argc = 3;
2268                 conf_argv[2] = conf_get_string(conf, opt_section, opt->name);
2269                 /* not NULL */
2270             }
2271             if (conf_argc > 1) {
2272                 (void)opt_init(conf_argc, conf_argv, cmp_options);
2273 
2274                 if (provider_option
2275                     ? !opt_provider(opt_next())
2276                     : !opt_verify(opt_next(), vpm)) {
2277                     CMP_err2("for option '%s' in config file section '%s'",
2278                              opt->name, opt_section);
2279                     return 0;
2280                 }
2281             }
2282         } else {
2283             switch (opt->valtype) {
2284             case '-':
2285             case 'p':
2286             case 'n':
2287             case 'N':
2288                 if (num < INT_MIN || INT_MAX < num) {
2289                     BIO_printf(bio_err,
2290                                "integer value out of range for option '%s'\n",
2291                                opt->name);
2292                     return 0;
2293                 }
2294                 *cmp_vars[i].num = (int)num;
2295                 break;
2296             case 'l':
2297                 *cmp_vars[i].num_long = num;
2298                 break;
2299             default:
2300                 if (txt != NULL && txt[0] == '\0')
2301                     txt = NULL; /* reset option on empty string input */
2302                 *cmp_vars[i].txt = txt;
2303                 break;
2304             }
2305         }
2306     }
2307 
2308     return 1;
2309 }
2310 
2311 static char *opt_str(void)
2312 {
2313     char *arg = opt_arg();
2314 
2315     if (arg[0] == '\0') {
2316         CMP_warn1("%s option argument is empty string, resetting option",
2317                   opt_flag());
2318         arg = NULL;
2319     } else if (arg[0] == '-') {
2320         CMP_warn1("%s option argument starts with hyphen", opt_flag());
2321     }
2322     return arg;
2323 }
2324 
2325 /* returns 1 on success, 0 on error, -1 on -help (i.e., stop with success) */
2326 static int get_opts(int argc, char **argv)
2327 {
2328     OPTION_CHOICE o;
2329 
2330     prog = opt_init(argc, argv, cmp_options);
2331 
2332     while ((o = opt_next()) != OPT_EOF) {
2333         switch (o) {
2334         case OPT_EOF:
2335         case OPT_ERR:
2336  opthelp:
2337             BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
2338             return 0;
2339         case OPT_HELP:
2340             opt_help(cmp_options);
2341             return -1;
2342         case OPT_CONFIG: /* has already been handled */
2343         case OPT_SECTION: /* has already been handled */
2344             break;
2345         case OPT_VERBOSITY:
2346             if (!set_verbosity(opt_int_arg()))
2347                 goto opthelp;
2348             break;
2349 #ifndef OPENSSL_NO_SOCK
2350         case OPT_SERVER:
2351             opt_server = opt_str();
2352             break;
2353         case OPT_PROXY:
2354             opt_proxy = opt_str();
2355             break;
2356         case OPT_NO_PROXY:
2357             opt_no_proxy = opt_str();
2358             break;
2359 #endif
2360         case OPT_RECIPIENT:
2361             opt_recipient = opt_str();
2362             break;
2363         case OPT_PATH:
2364             opt_path = opt_str();
2365             break;
2366         case OPT_KEEP_ALIVE:
2367             opt_keep_alive = opt_int_arg();
2368             if (opt_keep_alive > 2) {
2369                 CMP_err("-keep_alive argument must be 0, 1, or 2");
2370                 goto opthelp;
2371             }
2372             break;
2373         case OPT_MSG_TIMEOUT:
2374             opt_msg_timeout = opt_int_arg();
2375             break;
2376         case OPT_TOTAL_TIMEOUT:
2377             opt_total_timeout = opt_int_arg();
2378             break;
2379 #ifndef OPENSSL_NO_SOCK
2380         case OPT_TLS_USED:
2381             opt_tls_used = 1;
2382             break;
2383         case OPT_TLS_CERT:
2384             opt_tls_cert = opt_str();
2385             break;
2386         case OPT_TLS_KEY:
2387             opt_tls_key = opt_str();
2388             break;
2389         case OPT_TLS_KEYPASS:
2390             opt_tls_keypass = opt_str();
2391             break;
2392         case OPT_TLS_EXTRA:
2393             opt_tls_extra = opt_str();
2394             break;
2395         case OPT_TLS_TRUSTED:
2396             opt_tls_trusted = opt_str();
2397             break;
2398         case OPT_TLS_HOST:
2399             opt_tls_host = opt_str();
2400             break;
2401 #endif
2402 
2403         case OPT_REF:
2404             opt_ref = opt_str();
2405             break;
2406         case OPT_SECRET:
2407             opt_secret = opt_str();
2408             break;
2409         case OPT_CERT:
2410             opt_cert = opt_str();
2411             break;
2412         case OPT_OWN_TRUSTED:
2413             opt_own_trusted = opt_str();
2414             break;
2415         case OPT_KEY:
2416             opt_key = opt_str();
2417             break;
2418         case OPT_KEYPASS:
2419             opt_keypass = opt_str();
2420             break;
2421         case OPT_DIGEST:
2422             opt_digest = opt_str();
2423             break;
2424         case OPT_MAC:
2425             opt_mac = opt_str();
2426             break;
2427         case OPT_EXTRACERTS:
2428             opt_extracerts = opt_str();
2429             break;
2430         case OPT_UNPROTECTED_REQUESTS:
2431             opt_unprotected_requests = 1;
2432             break;
2433 
2434         case OPT_TRUSTED:
2435             opt_trusted = opt_str();
2436             break;
2437         case OPT_UNTRUSTED:
2438             opt_untrusted = opt_str();
2439             break;
2440         case OPT_SRVCERT:
2441             opt_srvcert = opt_str();
2442             break;
2443         case OPT_EXPECT_SENDER:
2444             opt_expect_sender = opt_str();
2445             break;
2446         case OPT_IGNORE_KEYUSAGE:
2447             opt_ignore_keyusage = 1;
2448             break;
2449         case OPT_UNPROTECTED_ERRORS:
2450             opt_unprotected_errors = 1;
2451             break;
2452         case OPT_EXTRACERTSOUT:
2453             opt_extracertsout = opt_str();
2454             break;
2455         case OPT_CACERTSOUT:
2456             opt_cacertsout = opt_str();
2457             break;
2458 
2459         case OPT_V_CASES:
2460             if (!opt_verify(o, vpm))
2461                 goto opthelp;
2462             break;
2463         case OPT_CMD:
2464             opt_cmd_s = opt_str();
2465             break;
2466         case OPT_INFOTYPE:
2467             opt_infotype_s = opt_str();
2468             break;
2469         case OPT_GENINFO:
2470             opt_geninfo = opt_str();
2471             break;
2472 
2473         case OPT_NEWKEY:
2474             opt_newkey = opt_str();
2475             break;
2476         case OPT_NEWKEYPASS:
2477             opt_newkeypass = opt_str();
2478             break;
2479         case OPT_SUBJECT:
2480             opt_subject = opt_str();
2481             break;
2482         case OPT_ISSUER:
2483             opt_issuer = opt_str();
2484             break;
2485         case OPT_DAYS:
2486             opt_days = opt_int_arg();
2487             break;
2488         case OPT_REQEXTS:
2489             opt_reqexts = opt_str();
2490             break;
2491         case OPT_SANS:
2492             opt_sans = opt_str();
2493             break;
2494         case OPT_SAN_NODEFAULT:
2495             opt_san_nodefault = 1;
2496             break;
2497         case OPT_POLICIES:
2498             opt_policies = opt_str();
2499             break;
2500         case OPT_POLICY_OIDS:
2501             opt_policy_oids = opt_str();
2502             break;
2503         case OPT_POLICY_OIDS_CRITICAL:
2504             opt_policy_oids_critical = 1;
2505             break;
2506         case OPT_POPO:
2507             opt_popo = opt_int_arg();
2508             if (opt_popo < OSSL_CRMF_POPO_NONE
2509                     || opt_popo > OSSL_CRMF_POPO_KEYENC) {
2510                 CMP_err("invalid popo spec. Valid values are -1 .. 2");
2511                 goto opthelp;
2512             }
2513             break;
2514         case OPT_CSR:
2515             opt_csr = opt_str();
2516             break;
2517         case OPT_OUT_TRUSTED:
2518             opt_out_trusted = opt_str();
2519             break;
2520         case OPT_IMPLICIT_CONFIRM:
2521             opt_implicit_confirm = 1;
2522             break;
2523         case OPT_DISABLE_CONFIRM:
2524             opt_disable_confirm = 1;
2525             break;
2526         case OPT_CERTOUT:
2527             opt_certout = opt_str();
2528             break;
2529         case OPT_CHAINOUT:
2530             opt_chainout = opt_str();
2531             break;
2532         case OPT_OLDCERT:
2533             opt_oldcert = opt_str();
2534             break;
2535         case OPT_REVREASON:
2536             opt_revreason = opt_int_arg();
2537                 if (opt_revreason < CRL_REASON_NONE
2538                     || opt_revreason > CRL_REASON_AA_COMPROMISE
2539                     || opt_revreason == 7) {
2540                 CMP_err("invalid revreason. Valid values are -1 .. 6, 8 .. 10");
2541                 goto opthelp;
2542             }
2543             break;
2544         case OPT_CERTFORM:
2545             opt_certform_s = opt_str();
2546             break;
2547         case OPT_KEYFORM:
2548             opt_keyform_s = opt_str();
2549             break;
2550         case OPT_OTHERPASS:
2551             opt_otherpass = opt_str();
2552             break;
2553 #ifndef OPENSSL_NO_ENGINE
2554         case OPT_ENGINE:
2555             opt_engine = opt_str();
2556             break;
2557 #endif
2558         case OPT_PROV_CASES:
2559             if (!opt_provider(o))
2560                 goto opthelp;
2561             break;
2562         case OPT_R_CASES:
2563             if (!opt_rand(o))
2564                 goto opthelp;
2565             break;
2566 
2567         case OPT_BATCH:
2568             opt_batch = 1;
2569             break;
2570         case OPT_REPEAT:
2571             opt_repeat = opt_int_arg();
2572             break;
2573         case OPT_REQIN:
2574             opt_reqin = opt_str();
2575             break;
2576         case OPT_REQIN_NEW_TID:
2577             opt_reqin_new_tid = 1;
2578             break;
2579         case OPT_REQOUT:
2580             opt_reqout = opt_str();
2581             break;
2582         case OPT_RSPIN:
2583             opt_rspin = opt_str();
2584             break;
2585         case OPT_RSPOUT:
2586             opt_rspout = opt_str();
2587             break;
2588         case OPT_USE_MOCK_SRV:
2589             opt_use_mock_srv = 1;
2590             break;
2591 
2592 #ifndef OPENSSL_NO_SOCK
2593         case OPT_PORT:
2594             opt_port = opt_str();
2595             break;
2596         case OPT_MAX_MSGS:
2597             opt_max_msgs = opt_int_arg();
2598             break;
2599 #endif
2600         case OPT_SRV_REF:
2601             opt_srv_ref = opt_str();
2602             break;
2603         case OPT_SRV_SECRET:
2604             opt_srv_secret = opt_str();
2605             break;
2606         case OPT_SRV_CERT:
2607             opt_srv_cert = opt_str();
2608             break;
2609         case OPT_SRV_KEY:
2610             opt_srv_key = opt_str();
2611             break;
2612         case OPT_SRV_KEYPASS:
2613             opt_srv_keypass = opt_str();
2614             break;
2615         case OPT_SRV_TRUSTED:
2616             opt_srv_trusted = opt_str();
2617             break;
2618         case OPT_SRV_UNTRUSTED:
2619             opt_srv_untrusted = opt_str();
2620             break;
2621         case OPT_RSP_CERT:
2622             opt_rsp_cert = opt_str();
2623             break;
2624         case OPT_RSP_EXTRACERTS:
2625             opt_rsp_extracerts = opt_str();
2626             break;
2627         case OPT_RSP_CAPUBS:
2628             opt_rsp_capubs = opt_str();
2629             break;
2630         case OPT_POLL_COUNT:
2631             opt_poll_count = opt_int_arg();
2632             break;
2633         case OPT_CHECK_AFTER:
2634             opt_check_after = opt_int_arg();
2635             break;
2636         case OPT_GRANT_IMPLICITCONF:
2637             opt_grant_implicitconf = 1;
2638             break;
2639         case OPT_PKISTATUS:
2640             opt_pkistatus = opt_int_arg();
2641             break;
2642         case OPT_FAILURE:
2643             opt_failure = opt_int_arg();
2644             break;
2645         case OPT_FAILUREBITS:
2646             opt_failurebits = opt_int_arg();
2647             break;
2648         case OPT_STATUSSTRING:
2649             opt_statusstring = opt_str();
2650             break;
2651         case OPT_SEND_ERROR:
2652             opt_send_error = 1;
2653             break;
2654         case OPT_SEND_UNPROTECTED:
2655             opt_send_unprotected = 1;
2656             break;
2657         case OPT_SEND_UNPROT_ERR:
2658             opt_send_unprot_err = 1;
2659             break;
2660         case OPT_ACCEPT_UNPROTECTED:
2661             opt_accept_unprotected = 1;
2662             break;
2663         case OPT_ACCEPT_UNPROT_ERR:
2664             opt_accept_unprot_err = 1;
2665             break;
2666         case OPT_ACCEPT_RAVERIFIED:
2667             opt_accept_raverified = 1;
2668             break;
2669         }
2670     }
2671 
2672     /* No extra args. */
2673     argc = opt_num_rest();
2674     argv = opt_rest();
2675     if (argc != 0)
2676         goto opthelp;
2677     return 1;
2678 }
2679 
2680 #ifndef OPENSSL_NO_SOCK
2681 static int cmp_server(OSSL_CMP_CTX *srv_cmp_ctx) {
2682     BIO *acbio;
2683     BIO *cbio = NULL;
2684     int keep_alive = 0;
2685     int msgs = 0;
2686     int retry = 1;
2687     int ret = 1;
2688 
2689     if ((acbio = http_server_init_bio(prog, opt_port)) == NULL)
2690         return 0;
2691     while (opt_max_msgs <= 0 || msgs < opt_max_msgs) {
2692         char *path = NULL;
2693         OSSL_CMP_MSG *req = NULL;
2694         OSSL_CMP_MSG *resp = NULL;
2695 
2696         ret = http_server_get_asn1_req(ASN1_ITEM_rptr(OSSL_CMP_MSG),
2697                                        (ASN1_VALUE **)&req, &path,
2698                                        &cbio, acbio, &keep_alive,
2699                                        prog, opt_port, 0, 0);
2700         if (ret == 0) { /* no request yet */
2701             if (retry) {
2702                 ossl_sleep(1000);
2703                 retry = 0;
2704                 continue;
2705             }
2706             ret = 0;
2707             goto next;
2708         }
2709         if (ret++ == -1) /* fatal error */
2710             break;
2711 
2712         ret = 0;
2713         msgs++;
2714         if (req != NULL) {
2715             if (strcmp(path, "") != 0 && strcmp(path, "pkix/") != 0) {
2716                 (void)http_server_send_status(cbio, 404, "Not Found");
2717                 CMP_err1("expecting empty path or 'pkix/' but got '%s'",
2718                          path);
2719                 OPENSSL_free(path);
2720                 OSSL_CMP_MSG_free(req);
2721                 goto next;
2722             }
2723             OPENSSL_free(path);
2724             resp = OSSL_CMP_CTX_server_perform(cmp_ctx, req);
2725             OSSL_CMP_MSG_free(req);
2726             if (resp == NULL) {
2727                 (void)http_server_send_status(cbio,
2728                                               500, "Internal Server Error");
2729                 break; /* treated as fatal error */
2730             }
2731             ret = http_server_send_asn1_resp(cbio, keep_alive,
2732                                              "application/pkixcmp",
2733                                              ASN1_ITEM_rptr(OSSL_CMP_MSG),
2734                                              (const ASN1_VALUE *)resp);
2735             OSSL_CMP_MSG_free(resp);
2736             if (!ret)
2737                 break; /* treated as fatal error */
2738         }
2739     next:
2740         if (!ret) { /* on transmission error, cancel CMP transaction */
2741             (void)OSSL_CMP_CTX_set1_transactionID(srv_cmp_ctx, NULL);
2742             (void)OSSL_CMP_CTX_set1_senderNonce(srv_cmp_ctx, NULL);
2743         }
2744         if (!ret || !keep_alive
2745             || OSSL_CMP_CTX_get_status(srv_cmp_ctx) != OSSL_CMP_PKISTATUS_trans
2746             /* transaction closed by OSSL_CMP_CTX_server_perform() */) {
2747             BIO_free_all(cbio);
2748             cbio = NULL;
2749         }
2750     }
2751 
2752     BIO_free_all(cbio);
2753     BIO_free_all(acbio);
2754     return ret;
2755 }
2756 #endif
2757 
2758 static void print_status(void)
2759 {
2760     /* print PKIStatusInfo */
2761     int status = OSSL_CMP_CTX_get_status(cmp_ctx);
2762     char *buf = app_malloc(OSSL_CMP_PKISI_BUFLEN, "PKIStatusInfo buf");
2763     const char *string =
2764         OSSL_CMP_CTX_snprint_PKIStatus(cmp_ctx, buf, OSSL_CMP_PKISI_BUFLEN);
2765     const char *from = "", *server = "";
2766 
2767 #ifndef OPENSSL_NO_SOCK
2768     if (opt_server != NULL) {
2769         from = " from ";
2770         server = opt_server;
2771     }
2772 #endif
2773     CMP_print(bio_err,
2774               status == OSSL_CMP_PKISTATUS_accepted
2775               ? OSSL_CMP_LOG_INFO :
2776               status == OSSL_CMP_PKISTATUS_rejection
2777               || status == OSSL_CMP_PKISTATUS_waiting
2778               ? OSSL_CMP_LOG_ERR : OSSL_CMP_LOG_WARNING,
2779               status == OSSL_CMP_PKISTATUS_accepted ? "info" :
2780               status == OSSL_CMP_PKISTATUS_rejection ? "server error" :
2781               status == OSSL_CMP_PKISTATUS_waiting ? "internal error"
2782               : "warning", "received%s%s %s", from, server,
2783               string != NULL ? string : "<unknown PKIStatus>");
2784     OPENSSL_free(buf);
2785 }
2786 
2787 int cmp_main(int argc, char **argv)
2788 {
2789     char *configfile = NULL;
2790     int i;
2791     X509 *newcert = NULL;
2792     ENGINE *engine = NULL;
2793     OSSL_CMP_CTX *srv_cmp_ctx = NULL;
2794     int ret = 0; /* default: failure */
2795 
2796     prog = opt_appname(argv[0]);
2797     if (argc <= 1) {
2798         opt_help(cmp_options);
2799         goto err;
2800     }
2801 
2802     /*
2803      * handle options -config, -section, and -verbosity upfront
2804      * to take effect for other options
2805      */
2806     for (i = 1; i < argc - 1; i++) {
2807         if (*argv[i] == '-') {
2808             if (!strcmp(argv[i] + 1, cmp_options[OPT_CONFIG - OPT_HELP].name))
2809                 opt_config = argv[++i];
2810             else if (!strcmp(argv[i] + 1,
2811                              cmp_options[OPT_SECTION - OPT_HELP].name))
2812                 opt_section = argv[++i];
2813             else if (strcmp(argv[i] + 1,
2814                             cmp_options[OPT_VERBOSITY - OPT_HELP].name) == 0
2815                      && !set_verbosity(atoi(argv[++i])))
2816                 goto err;
2817         }
2818     }
2819     if (opt_section[0] == '\0') /* empty string */
2820         opt_section = DEFAULT_SECTION;
2821 
2822     vpm = X509_VERIFY_PARAM_new();
2823     if (vpm == NULL) {
2824         CMP_err("out of memory");
2825         goto err;
2826     }
2827 
2828     /* read default values for options from config file */
2829     configfile = opt_config != NULL ? opt_config : default_config_file;
2830     if (configfile != NULL && configfile[0] != '\0' /* non-empty string */
2831             && (configfile != default_config_file || access(configfile, F_OK) != -1)) {
2832         CMP_info2("using section(s) '%s' of OpenSSL configuration file '%s'",
2833                   opt_section, configfile);
2834         conf = app_load_config(configfile);
2835         if (conf == NULL) {
2836             goto err;
2837         } else {
2838             if (strcmp(opt_section, CMP_SECTION) == 0) { /* default */
2839                 if (!NCONF_get_section(conf, opt_section))
2840                     CMP_info2("no [%s] section found in config file '%s';"
2841                               " will thus use just [default] and unnamed section if present",
2842                               opt_section, configfile);
2843             } else {
2844                 const char *end = opt_section + strlen(opt_section);
2845                 while ((end = prev_item(opt_section, end)) != NULL) {
2846                     if (!NCONF_get_section(conf, opt_item)) {
2847                         CMP_err2("no [%s] section found in config file '%s'",
2848                                  opt_item, configfile);
2849                         goto err;
2850                     }
2851                 }
2852             }
2853             ret = read_config();
2854             if (!set_verbosity(opt_verbosity)) /* just for checking range */
2855                 ret = -1;
2856             if (ret <= 0) {
2857                 if (ret == -1)
2858                     BIO_printf(bio_err, "Use -help for summary.\n");
2859                 goto err;
2860             }
2861         }
2862     }
2863     (void)BIO_flush(bio_err); /* prevent interference with opt_help() */
2864 
2865     ret = get_opts(argc, argv);
2866     if (ret <= 0)
2867         goto err;
2868     ret = 0;
2869     if (!app_RAND_load())
2870         goto err;
2871 
2872     if (opt_batch)
2873         set_base_ui_method(UI_null());
2874 
2875     if (opt_engine != NULL) {
2876         engine = setup_engine_methods(opt_engine, 0 /* not: ENGINE_METHOD_ALL */, 0);
2877         if (engine == NULL) {
2878             CMP_err1("cannot load engine %s", opt_engine);
2879             goto err;
2880         }
2881     }
2882 
2883     cmp_ctx = OSSL_CMP_CTX_new(app_get0_libctx(), app_get0_propq());
2884     if (cmp_ctx == NULL)
2885         goto err;
2886     OSSL_CMP_CTX_set_log_verbosity(cmp_ctx, opt_verbosity);
2887     if (!OSSL_CMP_CTX_set_log_cb(cmp_ctx, print_to_bio_out)) {
2888         CMP_err1("cannot set up error reporting and logging for %s", prog);
2889         goto err;
2890     }
2891 
2892 #ifndef OPENSSL_NO_SOCK
2893     if ((opt_tls_cert != NULL || opt_tls_key != NULL
2894          || opt_tls_keypass != NULL || opt_tls_extra != NULL
2895          || opt_tls_trusted != NULL || opt_tls_host != NULL)
2896             && !opt_tls_used)
2897         CMP_warn("Ingnoring TLS options(s) since -tls_used is not given");
2898     if (opt_port != NULL) {
2899         if (opt_tls_used) {
2900             CMP_err("-tls_used option not supported with -port option");
2901             goto err;
2902         }
2903         if (opt_server != NULL || opt_use_mock_srv) {
2904             CMP_err("The -port option excludes -server and -use_mock_srv");
2905             goto err;
2906         }
2907         if (opt_reqin != NULL || opt_reqout != NULL) {
2908             CMP_err("The -port option does not support -reqin and -reqout");
2909             goto err;
2910         }
2911         if (opt_rspin != NULL || opt_rspout != NULL) {
2912             CMP_err("The -port option does not support -rspin and -rspout");
2913             goto err;
2914         }
2915     }
2916     if (opt_server != NULL && opt_use_mock_srv) {
2917         CMP_err("cannot use both -server and -use_mock_srv options");
2918         goto err;
2919     }
2920 #endif
2921 
2922     if (opt_use_mock_srv
2923 #ifndef OPENSSL_NO_SOCK
2924         || opt_port != NULL
2925 #endif
2926         ) {
2927         OSSL_CMP_SRV_CTX *srv_ctx;
2928 
2929         if ((srv_ctx = setup_srv_ctx(engine)) == NULL)
2930             goto err;
2931         srv_cmp_ctx = OSSL_CMP_SRV_CTX_get0_cmp_ctx(srv_ctx);
2932         OSSL_CMP_CTX_set_transfer_cb_arg(cmp_ctx, srv_ctx);
2933         if (!OSSL_CMP_CTX_set_log_cb(srv_cmp_ctx, print_to_bio_err)) {
2934             CMP_err1("cannot set up error reporting and logging for %s", prog);
2935             goto err;
2936         }
2937         OSSL_CMP_CTX_set_log_verbosity(srv_cmp_ctx, opt_verbosity);
2938     }
2939 
2940 #ifndef OPENSSL_NO_SOCK
2941     if (opt_tls_used && (opt_use_mock_srv || opt_server == NULL)) {
2942         CMP_warn("ignoring -tls_used option since -use_mock_srv is given or -server is not given");
2943         opt_tls_used = 0;
2944     }
2945 
2946     if (opt_port != NULL) { /* act as very basic CMP HTTP server */
2947         ret = cmp_server(srv_cmp_ctx);
2948         goto err;
2949     }
2950 
2951     /* act as CMP client, possibly using internal mock server */
2952 
2953     if (opt_rspin != NULL) {
2954         if (opt_server != NULL)
2955             CMP_warn("-server option is not used if enough filenames given for -rspin");
2956         if (opt_use_mock_srv)
2957             CMP_warn("-use_mock_srv option is not used if enough filenames given for -rspin");
2958     }
2959 #endif
2960 
2961     if (!setup_client_ctx(cmp_ctx, engine)) {
2962         CMP_err("cannot set up CMP context");
2963         goto err;
2964     }
2965     for (i = 0; i < opt_repeat; i++) {
2966         /* everything is ready, now connect and perform the command! */
2967         switch (opt_cmd) {
2968         case CMP_IR:
2969             newcert = OSSL_CMP_exec_IR_ses(cmp_ctx);
2970             if (newcert != NULL)
2971                 ret = 1;
2972             break;
2973         case CMP_KUR:
2974             newcert = OSSL_CMP_exec_KUR_ses(cmp_ctx);
2975             if (newcert != NULL)
2976                 ret = 1;
2977             break;
2978         case CMP_CR:
2979             newcert = OSSL_CMP_exec_CR_ses(cmp_ctx);
2980             if (newcert != NULL)
2981                 ret = 1;
2982             break;
2983         case CMP_P10CR:
2984             newcert = OSSL_CMP_exec_P10CR_ses(cmp_ctx);
2985             if (newcert != NULL)
2986                 ret = 1;
2987             break;
2988         case CMP_RR:
2989             ret = OSSL_CMP_exec_RR_ses(cmp_ctx);
2990             break;
2991         case CMP_GENM:
2992             {
2993                 STACK_OF(OSSL_CMP_ITAV) *itavs;
2994 
2995                 if (opt_infotype != NID_undef) {
2996                     OSSL_CMP_ITAV *itav =
2997                         OSSL_CMP_ITAV_create(OBJ_nid2obj(opt_infotype), NULL);
2998                     if (itav == NULL)
2999                         goto err;
3000                     OSSL_CMP_CTX_push0_genm_ITAV(cmp_ctx, itav);
3001                 }
3002 
3003                 if ((itavs = OSSL_CMP_exec_GENM_ses(cmp_ctx)) != NULL) {
3004                     print_itavs(itavs);
3005                     sk_OSSL_CMP_ITAV_pop_free(itavs, OSSL_CMP_ITAV_free);
3006                     ret = 1;
3007                 }
3008                 break;
3009             }
3010         default:
3011             break;
3012         }
3013         if (OSSL_CMP_CTX_get_status(cmp_ctx) < OSSL_CMP_PKISTATUS_accepted)
3014             goto err; /* we got no response, maybe even did not send request */
3015 
3016         print_status();
3017         if (save_free_certs(cmp_ctx, OSSL_CMP_CTX_get1_extraCertsIn(cmp_ctx),
3018                             opt_extracertsout, "extra") < 0)
3019             ret = 0;
3020         if (!ret)
3021             goto err;
3022         ret = 0;
3023         if (save_free_certs(cmp_ctx, OSSL_CMP_CTX_get1_caPubs(cmp_ctx),
3024                             opt_cacertsout, "CA") < 0)
3025             goto err;
3026         if (newcert != NULL) {
3027             STACK_OF(X509) *certs = sk_X509_new_null();
3028 
3029             if (!X509_add_cert(certs, newcert, X509_ADD_FLAG_UP_REF)) {
3030                 sk_X509_free(certs);
3031                 goto err;
3032             }
3033             if (save_free_certs(cmp_ctx, certs, opt_certout, "enrolled") < 0)
3034                 goto err;
3035         }
3036         if (save_free_certs(cmp_ctx, OSSL_CMP_CTX_get1_newChain(cmp_ctx),
3037                             opt_chainout, "chain") < 0)
3038             goto err;
3039 
3040         if (!OSSL_CMP_CTX_reinit(cmp_ctx))
3041             goto err;
3042     }
3043     ret = 1;
3044 
3045  err:
3046     /* in case we ended up here on error without proper cleaning */
3047     cleanse(opt_keypass);
3048     cleanse(opt_newkeypass);
3049     cleanse(opt_otherpass);
3050 #ifndef OPENSSL_NO_SOCK
3051     cleanse(opt_tls_keypass);
3052 #endif
3053     cleanse(opt_secret);
3054     cleanse(opt_srv_keypass);
3055     cleanse(opt_srv_secret);
3056 
3057     if (ret != 1)
3058         OSSL_CMP_CTX_print_errors(cmp_ctx);
3059 
3060     if (cmp_ctx != NULL) {
3061 #ifndef OPENSSL_NO_SOCK
3062         APP_HTTP_TLS_INFO *info = OSSL_CMP_CTX_get_http_cb_arg(cmp_ctx);
3063 
3064 #endif
3065         ossl_cmp_mock_srv_free(OSSL_CMP_CTX_get_transfer_cb_arg(cmp_ctx));
3066         X509_STORE_free(OSSL_CMP_CTX_get_certConf_cb_arg(cmp_ctx));
3067         /* cannot free info already here, as it may be used indirectly by: */
3068         OSSL_CMP_CTX_free(cmp_ctx);
3069 #ifndef OPENSSL_NO_SOCK
3070         if (info != NULL) {
3071             OPENSSL_free((char *)info->server);
3072             OPENSSL_free((char *)info->port);
3073             APP_HTTP_TLS_INFO_free(info);
3074         }
3075 #endif
3076     }
3077     X509_VERIFY_PARAM_free(vpm);
3078     release_engine(engine);
3079 
3080     NCONF_free(conf); /* must not do as long as opt_... variables are used */
3081     OSSL_CMP_log_close();
3082 
3083     return ret == 0 ? EXIT_FAILURE : EXIT_SUCCESS; /* ret == -1 for -help */
3084 }
3085