vendor/openssl/3.0.8

1 files changed, 3023 insertions, 0 deletions

diff --git a/apps/cmp.c b/apps/cmp.c
new file mode 100644
index 000000000000..9b9e405bb248
--- /dev/null
+++ b/apps/cmp.c
@@ -0,0 +1,3023 @@
+/*
+ * Copyright 2007-2022 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright Nokia 2007-2019
+ * Copyright Siemens AG 2015-2019
+ *
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+/* This app is disabled when OPENSSL_NO_CMP is defined. */
+
+#include <string.h>
+#include <ctype.h>
+
+#include "apps.h"
+#include "http_server.h"
+#include "s_apps.h"
+#include "progs.h"
+
+#include "cmp_mock_srv.h"
+
+/* tweaks needed due to missing unistd.h on Windows */
+#if defined(_WIN32) && !defined(__BORLANDC__)
+# define access _access
+#endif
+#ifndef F_OK
+# define F_OK 0
+#endif
+
+#include <openssl/ui.h>
+#include <openssl/pkcs12.h>
+#include <openssl/ssl.h>
+
+/* explicit #includes not strictly needed since implied by the above: */
+#include <stdlib.h>
+#include <openssl/cmp.h>
+#include <openssl/cmp_util.h>
+#include <openssl/crmf.h>
+#include <openssl/crypto.h>
+#include <openssl/err.h>
+#include <openssl/store.h>
+#include <openssl/objects.h>
+#include <openssl/x509.h>
+
+static char *prog;
+static char *opt_config = NULL;
+#define CMP_SECTION "cmp"
+#define SECTION_NAME_MAX 40 /* max length of section name */
+#define DEFAULT_SECTION "default"
+static char *opt_section = CMP_SECTION;
+static int opt_verbosity = OSSL_CMP_LOG_INFO;
+
+static int read_config(void);
+
+static CONF *conf = NULL; /* OpenSSL config file context structure */
+static OSSL_CMP_CTX *cmp_ctx = NULL; /* the client-side CMP context */
+
+/* the type of cmp command we want to send */
+typedef enum {
+    CMP_IR,
+    CMP_KUR,
+    CMP_CR,
+    CMP_P10CR,
+    CMP_RR,
+    CMP_GENM
+} cmp_cmd_t;
+
+/* message transfer */
+#ifndef OPENSSL_NO_SOCK
+static char *opt_server = NULL;
+static char *opt_proxy = NULL;
+static char *opt_no_proxy = NULL;
+#endif
+static char *opt_recipient = NULL;
+static char *opt_path = NULL;
+static int opt_keep_alive = 1;
+static int opt_msg_timeout = -1;
+static int opt_total_timeout = -1;
+
+/* server authentication */
+static char *opt_trusted = NULL;
+static char *opt_untrusted = NULL;
+static char *opt_srvcert = NULL;
+static char *opt_expect_sender = NULL;
+static int opt_ignore_keyusage = 0;
+static int opt_unprotected_errors = 0;
+static char *opt_extracertsout = NULL;
+static char *opt_cacertsout = NULL;
+
+/* client authentication */
+static char *opt_ref = NULL;
+static char *opt_secret = NULL;
+static char *opt_cert = NULL;
+static char *opt_own_trusted = NULL;
+static char *opt_key = NULL;
+static char *opt_keypass = NULL;
+static char *opt_digest = NULL;
+static char *opt_mac = NULL;
+static char *opt_extracerts = NULL;
+static int opt_unprotected_requests = 0;
+
+/* generic message */
+static char *opt_cmd_s = NULL;
+static int opt_cmd = -1;
+static char *opt_geninfo = NULL;
+static char *opt_infotype_s = NULL;
+static int opt_infotype = NID_undef;
+
+/* certificate enrollment */
+static char *opt_newkey = NULL;
+static char *opt_newkeypass = NULL;
+static char *opt_subject = NULL;
+static char *opt_issuer = NULL;
+static int opt_days = 0;
+static char *opt_reqexts = NULL;
+static char *opt_sans = NULL;
+static int opt_san_nodefault = 0;
+static char *opt_policies = NULL;
+static char *opt_policy_oids = NULL;
+static int opt_policy_oids_critical = 0;
+static int opt_popo = OSSL_CRMF_POPO_NONE - 1;
+static char *opt_csr = NULL;
+static char *opt_out_trusted = NULL;
+static int opt_implicit_confirm = 0;
+static int opt_disable_confirm = 0;
+static char *opt_certout = NULL;
+static char *opt_chainout = NULL;
+
+/* certificate enrollment and revocation */
+static char *opt_oldcert = NULL;
+static int opt_revreason = CRL_REASON_NONE;
+
+/* credentials format */
+static char *opt_certform_s = "PEM";
+static int opt_certform = FORMAT_PEM;
+static char *opt_keyform_s = NULL;
+static int opt_keyform = FORMAT_UNDEF;
+static char *opt_otherpass = NULL;
+static char *opt_engine = NULL;
+
+#ifndef OPENSSL_NO_SOCK
+/* TLS connection */
+static int opt_tls_used = 0;
+static char *opt_tls_cert = NULL;
+static char *opt_tls_key = NULL;
+static char *opt_tls_keypass = NULL;
+static char *opt_tls_extra = NULL;
+static char *opt_tls_trusted = NULL;
+static char *opt_tls_host = NULL;
+#endif
+
+/* client-side debugging */
+static int opt_batch = 0;
+static int opt_repeat = 1;
+static char *opt_reqin = NULL;
+static int opt_reqin_new_tid = 0;
+static char *opt_reqout = NULL;
+static char *opt_rspin = NULL;
+static char *opt_rspout = NULL;
+static int opt_use_mock_srv = 0;
+
+/* mock server */
+#ifndef OPENSSL_NO_SOCK
+static char *opt_port = NULL;
+static int opt_max_msgs = 0;
+#endif
+static char *opt_srv_ref = NULL;
+static char *opt_srv_secret = NULL;
+static char *opt_srv_cert = NULL;
+static char *opt_srv_key = NULL;
+static char *opt_srv_keypass = NULL;
+
+static char *opt_srv_trusted = NULL;
+static char *opt_srv_untrusted = NULL;
+static char *opt_rsp_cert = NULL;
+static char *opt_rsp_extracerts = NULL;
+static char *opt_rsp_capubs = NULL;
+static int opt_poll_count = 0;
+static int opt_check_after = 1;
+static int opt_grant_implicitconf = 0;
+
+static int opt_pkistatus = OSSL_CMP_PKISTATUS_accepted;
+static int opt_failure = INT_MIN;
+static int opt_failurebits = 0;
+static char *opt_statusstring = NULL;
+static int opt_send_error = 0;
+static int opt_send_unprotected = 0;
+static int opt_send_unprot_err = 0;
+static int opt_accept_unprotected = 0;
+static int opt_accept_unprot_err = 0;
+static int opt_accept_raverified = 0;
+
+static X509_VERIFY_PARAM *vpm = NULL;
+
+typedef enum OPTION_choice {
+    OPT_COMMON,
+    OPT_CONFIG, OPT_SECTION, OPT_VERBOSITY,
+
+    OPT_CMD, OPT_INFOTYPE, OPT_GENINFO,
+
+    OPT_NEWKEY, OPT_NEWKEYPASS, OPT_SUBJECT, OPT_ISSUER,
+    OPT_DAYS, OPT_REQEXTS,
+    OPT_SANS, OPT_SAN_NODEFAULT,
+    OPT_POLICIES, OPT_POLICY_OIDS, OPT_POLICY_OIDS_CRITICAL,
+    OPT_POPO, OPT_CSR,
+    OPT_OUT_TRUSTED, OPT_IMPLICIT_CONFIRM, OPT_DISABLE_CONFIRM,
+    OPT_CERTOUT, OPT_CHAINOUT,
+
+    OPT_OLDCERT, OPT_REVREASON,
+
+#ifndef OPENSSL_NO_SOCK
+    OPT_SERVER, OPT_PROXY, OPT_NO_PROXY,
+#endif
+    OPT_RECIPIENT, OPT_PATH,
+    OPT_KEEP_ALIVE, OPT_MSG_TIMEOUT, OPT_TOTAL_TIMEOUT,
+
+    OPT_TRUSTED, OPT_UNTRUSTED, OPT_SRVCERT,
+    OPT_EXPECT_SENDER,
+    OPT_IGNORE_KEYUSAGE, OPT_UNPROTECTED_ERRORS,
+    OPT_EXTRACERTSOUT, OPT_CACERTSOUT,
+
+    OPT_REF, OPT_SECRET, OPT_CERT, OPT_OWN_TRUSTED, OPT_KEY, OPT_KEYPASS,
+    OPT_DIGEST, OPT_MAC, OPT_EXTRACERTS,
+    OPT_UNPROTECTED_REQUESTS,
+
+    OPT_CERTFORM, OPT_KEYFORM,
+    OPT_OTHERPASS,
+#ifndef OPENSSL_NO_ENGINE
+    OPT_ENGINE,
+#endif
+    OPT_PROV_ENUM,
+    OPT_R_ENUM,
+
+#ifndef OPENSSL_NO_SOCK
+    OPT_TLS_USED, OPT_TLS_CERT, OPT_TLS_KEY,
+    OPT_TLS_KEYPASS,
+    OPT_TLS_EXTRA, OPT_TLS_TRUSTED, OPT_TLS_HOST,
+#endif
+
+    OPT_BATCH, OPT_REPEAT,
+    OPT_REQIN, OPT_REQIN_NEW_TID, OPT_REQOUT, OPT_RSPIN, OPT_RSPOUT,
+    OPT_USE_MOCK_SRV,
+
+#ifndef OPENSSL_NO_SOCK
+    OPT_PORT, OPT_MAX_MSGS,
+#endif
+    OPT_SRV_REF, OPT_SRV_SECRET,
+    OPT_SRV_CERT, OPT_SRV_KEY, OPT_SRV_KEYPASS,
+    OPT_SRV_TRUSTED, OPT_SRV_UNTRUSTED,
+    OPT_RSP_CERT, OPT_RSP_EXTRACERTS, OPT_RSP_CAPUBS,
+    OPT_POLL_COUNT, OPT_CHECK_AFTER,
+    OPT_GRANT_IMPLICITCONF,
+    OPT_PKISTATUS, OPT_FAILURE,
+    OPT_FAILUREBITS, OPT_STATUSSTRING,
+    OPT_SEND_ERROR, OPT_SEND_UNPROTECTED,
+    OPT_SEND_UNPROT_ERR, OPT_ACCEPT_UNPROTECTED,
+    OPT_ACCEPT_UNPROT_ERR, OPT_ACCEPT_RAVERIFIED,
+
+    OPT_V_ENUM
+} OPTION_CHOICE;
+
+const OPTIONS cmp_options[] = {
+    /* entries must be in the same order as enumerated above!! */
+    {"help", OPT_HELP, '-', "Display this summary"},
+    {"config", OPT_CONFIG, 's',
+     "Configuration file to use. \"\" = none. Default from env variable OPENSSL_CONF"},
+    {"section", OPT_SECTION, 's',
+     "Section(s) in config file to get options from. \"\" = 'default'. Default 'cmp'"},
+    {"verbosity", OPT_VERBOSITY, 'N',
+     "Log level; 3=ERR, 4=WARN, 6=INFO, 7=DEBUG, 8=TRACE. Default 6 = INFO"},
+
+    OPT_SECTION("Generic message"),
+    {"cmd", OPT_CMD, 's', "CMP request to send: ir/cr/kur/p10cr/rr/genm"},
+    {"infotype", OPT_INFOTYPE, 's',
+     "InfoType name for requesting specific info in genm, e.g. 'signKeyPairTypes'"},
+    {"geninfo", OPT_GENINFO, 's',
+     "generalInfo integer values to place in request PKIHeader with given OID"},
+    {OPT_MORE_STR, 0, 0,
+     "specified in the form <OID>:int:<n>, e.g. \"1.2.3.4:int:56789\""},
+
+    OPT_SECTION("Certificate enrollment"),
+    {"newkey", OPT_NEWKEY, 's',
+     "Private or public key for the requested cert. Default: CSR key or client key"},
+    {"newkeypass", OPT_NEWKEYPASS, 's', "New private key pass phrase source"},
+    {"subject", OPT_SUBJECT, 's',
+     "Distinguished Name (DN) of subject to use in the requested cert template"},
+    {OPT_MORE_STR, 0, 0,
+     "For kur, default is subject of -csr arg or reference cert (see -oldcert)"},
+    {OPT_MORE_STR, 0, 0,
+     "this default is used for ir and cr only if no Subject Alt Names are set"},
+    {"issuer", OPT_ISSUER, 's',
+     "DN of the issuer to place in the requested certificate template"},
+    {OPT_MORE_STR, 0, 0,
+     "also used as recipient if neither -recipient nor -srvcert are given"},
+    {"days", OPT_DAYS, 'N',
+     "Requested validity time of the new certificate in number of days"},
+    {"reqexts", OPT_REQEXTS, 's',
+     "Name of config file section defining certificate request extensions."},
+    {OPT_MORE_STR, 0, 0,
+     "Augments or replaces any extensions contained CSR given with -csr"},
+    {"sans", OPT_SANS, 's',
+     "Subject Alt Names (IPADDR/DNS/URI) to add as (critical) cert req extension"},
+    {"san_nodefault", OPT_SAN_NODEFAULT, '-',
+     "Do not take default SANs from reference certificate (see -oldcert)"},
+    {"policies", OPT_POLICIES, 's',
+     "Name of config file section defining policies certificate request extension"},
+    {"policy_oids", OPT_POLICY_OIDS, 's',
+     "Policy OID(s) to add as policies certificate request extension"},
+    {"policy_oids_critical", OPT_POLICY_OIDS_CRITICAL, '-',
+     "Flag the policy OID(s) given with -policy_oids as critical"},
+    {"popo", OPT_POPO, 'n',
+     "Proof-of-Possession (POPO) method to use for ir/cr/kur where"},
+    {OPT_MORE_STR, 0, 0,
+     "-1 = NONE, 0 = RAVERIFIED, 1 = SIGNATURE (default), 2 = KEYENC"},
+    {"csr", OPT_CSR, 's',
+     "PKCS#10 CSR file in PEM or DER format to convert or to use in p10cr"},
+    {"out_trusted", OPT_OUT_TRUSTED, 's',
+     "Certificates to trust when verifying newly enrolled certificates"},
+    {"implicit_confirm", OPT_IMPLICIT_CONFIRM, '-',
+     "Request implicit confirmation of newly enrolled certificates"},
+    {"disable_confirm", OPT_DISABLE_CONFIRM, '-',
+     "Do not confirm newly enrolled certificate w/o requesting implicit"},
+    {OPT_MORE_STR, 0, 0,
+     "confirmation. WARNING: This leads to behavior violating RFC 4210"},
+    {"certout", OPT_CERTOUT, 's',
+     "File to save newly enrolled certificate"},
+    {"chainout", OPT_CHAINOUT, 's',
+     "File to save the chain of newly enrolled certificate"},
+
+    OPT_SECTION("Certificate enrollment and revocation"),
+
+    {"oldcert", OPT_OLDCERT, 's',
+     "Certificate to be updated (defaulting to -cert) or to be revoked in rr;"},
+    {OPT_MORE_STR, 0, 0,
+     "also used as reference (defaulting to -cert) for subject DN and SANs."},
+    {OPT_MORE_STR, 0, 0,
+     "Issuer is used as recipient unless -recipient, -srvcert, or -issuer given"},
+    {"revreason", OPT_REVREASON, 'n',
+     "Reason code to include in revocation request (rr); possible values:"},
+    {OPT_MORE_STR, 0, 0,
+     "0..6, 8..10 (see RFC5280, 5.3.1) or -1. Default -1 = none included"},
+
+    OPT_SECTION("Message transfer"),
+#ifdef OPENSSL_NO_SOCK
+    {OPT_MORE_STR, 0, 0,
+     "NOTE: -server, -proxy, and -no_proxy not supported due to no-sock build"},
+#else
+    {"server", OPT_SERVER, 's',
+     "[http[s]://]address[:port][/path] of CMP server. Default port 80 or 443."},
+    {OPT_MORE_STR, 0, 0,
+     "address may be a DNS name or an IP address; path can be overridden by -path"},
+    {"proxy", OPT_PROXY, 's',
+     "[http[s]://]address[:port][/path] of HTTP(S) proxy to use; path is ignored"},
+    {"no_proxy", OPT_NO_PROXY, 's',
+     "List of addresses of servers not to use HTTP(S) proxy for"},
+    {OPT_MORE_STR, 0, 0,
+     "Default from environment variable 'no_proxy', else 'NO_PROXY', else none"},
+#endif
+    {"recipient", OPT_RECIPIENT, 's',
+     "DN of CA. Default: subject of -srvcert, -issuer, issuer of -oldcert or -cert"},
+    {"path", OPT_PATH, 's',
+     "HTTP path (aka CMP alias) at the CMP server. Default from -server, else \"/\""},
+    {"keep_alive", OPT_KEEP_ALIVE, 'N',
+     "Persistent HTTP connections. 0: no, 1 (the default): request, 2: require"},
+    {"msg_timeout", OPT_MSG_TIMEOUT, 'N',
+     "Number of seconds allowed per CMP message round trip, or 0 for infinite"},
+    {"total_timeout", OPT_TOTAL_TIMEOUT, 'N',
+     "Overall time an enrollment incl. polling may take. Default 0 = infinite"},
+
+    OPT_SECTION("Server authentication"),
+    {"trusted", OPT_TRUSTED, 's',
+     "Certificates to trust as chain roots when verifying signed CMP responses"},
+    {OPT_MORE_STR, 0, 0, "unless -srvcert is given"},
+    {"untrusted", OPT_UNTRUSTED, 's',
+     "Intermediate CA certs for chain construction for CMP/TLS/enrolled certs"},
+    {"srvcert", OPT_SRVCERT, 's',
+     "Server cert to pin and trust directly when verifying signed CMP responses"},
+    {"expect_sender", OPT_EXPECT_SENDER, 's',
+     "DN of expected sender of responses. Defaults to subject of -srvcert, if any"},
+    {"ignore_keyusage", OPT_IGNORE_KEYUSAGE, '-',
+     "Ignore CMP signer cert key usage, else 'digitalSignature' must be allowed"},
+    {"unprotected_errors", OPT_UNPROTECTED_ERRORS, '-',
+     "Accept missing or invalid protection of regular error messages and negative"},
+    {OPT_MORE_STR, 0, 0,
+     "certificate responses (ip/cp/kup), revocation responses (rp), and PKIConf"},
+    {OPT_MORE_STR, 0, 0,
+     "WARNING: This setting leads to behavior allowing violation of RFC 4210"},
+    {"extracertsout", OPT_EXTRACERTSOUT, 's',
+     "File to save extra certificates received in the extraCerts field"},
+    {"cacertsout", OPT_CACERTSOUT, 's',
+     "File to save CA certificates received in the caPubs field of 'ip' messages"},
+
+    OPT_SECTION("Client authentication"),
+    {"ref", OPT_REF, 's',
+     "Reference value to use as senderKID in case no -cert is given"},
+    {"secret", OPT_SECRET, 's',
+     "Prefer PBM (over signatures) for protecting msgs with given password source"},
+    {"cert", OPT_CERT, 's',
+     "Client's CMP signer certificate; its public key must match the -key argument"},
+    {OPT_MORE_STR, 0, 0,
+     "This also used as default reference for subject DN and SANs."},
+    {OPT_MORE_STR, 0, 0,
+     "Any further certs included are appended to the untrusted certs"},
+    {"own_trusted", OPT_OWN_TRUSTED, 's',
+     "Optional certs to verify chain building for own CMP signer cert"},
+    {"key", OPT_KEY, 's', "CMP signer private key, not used when -secret given"},
+    {"keypass", OPT_KEYPASS, 's',
+     "Client private key (and cert and old cert) pass phrase source"},
+    {"digest", OPT_DIGEST, 's',
+     "Digest to use in message protection and POPO signatures. Default \"sha256\""},
+    {"mac", OPT_MAC, 's',
+     "MAC algorithm to use in PBM-based message protection. Default \"hmac-sha1\""},
+    {"extracerts", OPT_EXTRACERTS, 's',
+     "Certificates to append in extraCerts field of outgoing messages."},
+    {OPT_MORE_STR, 0, 0,
+     "This can be used as the default CMP signer cert chain to include"},
+    {"unprotected_requests", OPT_UNPROTECTED_REQUESTS, '-',
+     "Send messages without CMP-level protection"},
+
+    OPT_SECTION("Credentials format"),
+    {"certform", OPT_CERTFORM, 's',
+     "Format (PEM or DER) to use when saving a certificate to a file. Default PEM"},
+    {"keyform", OPT_KEYFORM, 's',
+     "Format of the key input (ENGINE, other values ignored)"},
+    {"otherpass", OPT_OTHERPASS, 's',
+     "Pass phrase source potentially needed for loading certificates of others"},
+#ifndef OPENSSL_NO_ENGINE
+    {"engine", OPT_ENGINE, 's',
+     "Use crypto engine with given identifier, possibly a hardware device."},
+    {OPT_MORE_STR, 0, 0,
+     "Engines may also be defined in OpenSSL config file engine section."},
+#endif
+    OPT_PROV_OPTIONS,
+    OPT_R_OPTIONS,
+
+    OPT_SECTION("TLS connection"),
+#ifdef OPENSSL_NO_SOCK
+    {OPT_MORE_STR, 0, 0,
+     "NOTE: -tls_used and all other TLS options not supported due to no-sock build"},
+#else
+    {"tls_used", OPT_TLS_USED, '-',
+     "Enable using TLS (also when other TLS options are not set)"},
+    {"tls_cert", OPT_TLS_CERT, 's',
+     "Client's TLS certificate. May include chain to be provided to TLS server"},
+    {"tls_key", OPT_TLS_KEY, 's',
+     "Private key for the client's TLS certificate"},
+    {"tls_keypass", OPT_TLS_KEYPASS, 's',
+     "Pass phrase source for the client's private TLS key (and TLS cert)"},
+    {"tls_extra", OPT_TLS_EXTRA, 's',
+     "Extra certificates to provide to TLS server during TLS handshake"},
+    {"tls_trusted", OPT_TLS_TRUSTED, 's',
+     "Trusted certificates to use for verifying the TLS server certificate;"},
+    {OPT_MORE_STR, 0, 0, "this implies host name validation"},
+    {"tls_host", OPT_TLS_HOST, 's',
+     "Address to be checked (rather than -server) during TLS host name validation"},
+#endif
+
+    OPT_SECTION("Client-side debugging"),
+    {"batch", OPT_BATCH, '-',
+     "Do not interactively prompt for input when a password is required etc."},
+    {"repeat", OPT_REPEAT, 'p',
+     "Invoke the transaction the given positive number of times. Default 1"},
+    {"reqin", OPT_REQIN, 's', "Take sequence of CMP requests from file(s)"},
+    {"reqin_new_tid", OPT_REQIN_NEW_TID, '-',
+     "Use fresh transactionID for CMP requests read from -reqin"},
+    {"reqout", OPT_REQOUT, 's', "Save sequence of CMP requests to file(s)"},
+    {"rspin", OPT_RSPIN, 's',
+     "Process sequence of CMP responses provided in file(s), skipping server"},
+    {"rspout", OPT_RSPOUT, 's', "Save sequence of CMP responses to file(s)"},
+
+    {"use_mock_srv", OPT_USE_MOCK_SRV, '-',
+     "Use internal mock server at API level, bypassing socket-based HTTP"},
+
+    OPT_SECTION("Mock server"),
+#ifdef OPENSSL_NO_SOCK
+    {OPT_MORE_STR, 0, 0,
+     "NOTE: -port and -max_msgs not supported due to no-sock build"},
+#else
+    {"port", OPT_PORT, 's',
+     "Act as HTTP-based mock server listening on given port"},
+    {"max_msgs", OPT_MAX_MSGS, 'N',
+     "max number of messages handled by HTTP mock server. Default: 0 = unlimited"},
+#endif
+
+    {"srv_ref", OPT_SRV_REF, 's',
+     "Reference value to use as senderKID of server in case no -srv_cert is given"},
+    {"srv_secret", OPT_SRV_SECRET, 's',
+     "Password source for server authentication with a pre-shared key (secret)"},
+    {"srv_cert", OPT_SRV_CERT, 's', "Certificate of the server"},
+    {"srv_key", OPT_SRV_KEY, 's',
+     "Private key used by the server for signing messages"},
+    {"srv_keypass", OPT_SRV_KEYPASS, 's',
+     "Server private key (and cert) pass phrase source"},
+
+    {"srv_trusted", OPT_SRV_TRUSTED, 's',
+     "Trusted certificates for client authentication"},
+    {"srv_untrusted", OPT_SRV_UNTRUSTED, 's',
+     "Intermediate certs that may be useful for verifying CMP protection"},
+    {"rsp_cert", OPT_RSP_CERT, 's',
+     "Certificate to be returned as mock enrollment result"},
+    {"rsp_extracerts", OPT_RSP_EXTRACERTS, 's',
+     "Extra certificates to be included in mock certification responses"},
+    {"rsp_capubs", OPT_RSP_CAPUBS, 's',
+     "CA certificates to be included in mock ip response"},
+    {"poll_count", OPT_POLL_COUNT, 'N',
+     "Number of times the client must poll before receiving a certificate"},
+    {"check_after", OPT_CHECK_AFTER, 'N',
+     "The check_after value (time to wait) to include in poll response"},
+    {"grant_implicitconf", OPT_GRANT_IMPLICITCONF, '-',
+     "Grant implicit confirmation of newly enrolled certificate"},
+
+    {"pkistatus", OPT_PKISTATUS, 'N',
+     "PKIStatus to be included in server response. Possible values: 0..6"},
+    {"failure", OPT_FAILURE, 'N',
+     "A single failure info bit number to include in server response, 0..26"},
+    {"failurebits", OPT_FAILUREBITS, 'N',
+     "Number representing failure bits to include in server response, 0..2^27 - 1"},
+    {"statusstring", OPT_STATUSSTRING, 's',
+     "Status string to be included in server response"},
+    {"send_error", OPT_SEND_ERROR, '-',
+     "Force server to reply with error message"},
+    {"send_unprotected", OPT_SEND_UNPROTECTED, '-',
+     "Send response messages without CMP-level protection"},
+    {"send_unprot_err", OPT_SEND_UNPROT_ERR, '-',
+     "In case of negative responses, server shall send unprotected error messages,"},
+    {OPT_MORE_STR, 0, 0,
+     "certificate responses (ip/cp/kup), and revocation responses (rp)."},
+    {OPT_MORE_STR, 0, 0,
+     "WARNING: This setting leads to behavior violating RFC 4210"},
+    {"accept_unprotected", OPT_ACCEPT_UNPROTECTED, '-',
+     "Accept missing or invalid protection of requests"},
+    {"accept_unprot_err", OPT_ACCEPT_UNPROT_ERR, '-',
+     "Accept unprotected error messages from client"},
+    {"accept_raverified", OPT_ACCEPT_RAVERIFIED, '-',
+     "Accept RAVERIFIED as proof-of-possession (POPO)"},
+
+    OPT_V_OPTIONS,
+    {NULL}
+};
+
+typedef union {
+    char **txt;
+    int *num;
+    long *num_long;
+} varref;
+static varref cmp_vars[] = { /* must be in same order as enumerated above! */
+    {&opt_config}, {&opt_section}, {(char **)&opt_verbosity},
+
+    {&opt_cmd_s}, {&opt_infotype_s}, {&opt_geninfo},
+
+    {&opt_newkey}, {&opt_newkeypass}, {&opt_subject}, {&opt_issuer},
+    {(char **)&opt_days}, {&opt_reqexts},
+    {&opt_sans}, {(char **)&opt_san_nodefault},
+    {&opt_policies}, {&opt_policy_oids}, {(char **)&opt_policy_oids_critical},
+    {(char **)&opt_popo}, {&opt_csr},
+    {&opt_out_trusted},
+    {(char **)&opt_implicit_confirm}, {(char **)&opt_disable_confirm},
+    {&opt_certout}, {&opt_chainout},
+
+    {&opt_oldcert}, {(char **)&opt_revreason},
+
+#ifndef OPENSSL_NO_SOCK
+    {&opt_server}, {&opt_proxy}, {&opt_no_proxy},
+#endif
+    {&opt_recipient}, {&opt_path}, {(char **)&opt_keep_alive},
+    {(char **)&opt_msg_timeout}, {(char **)&opt_total_timeout},
+
+    {&opt_trusted}, {&opt_untrusted}, {&opt_srvcert},
+    {&opt_expect_sender},
+    {(char **)&opt_ignore_keyusage}, {(char **)&opt_unprotected_errors},
+    {&opt_extracertsout}, {&opt_cacertsout},
+
+    {&opt_ref}, {&opt_secret},
+    {&opt_cert}, {&opt_own_trusted}, {&opt_key}, {&opt_keypass},
+    {&opt_digest}, {&opt_mac}, {&opt_extracerts},
+    {(char **)&opt_unprotected_requests},
+
+    {&opt_certform_s}, {&opt_keyform_s},
+    {&opt_otherpass},
+#ifndef OPENSSL_NO_ENGINE
+    {&opt_engine},
+#endif
+
+#ifndef OPENSSL_NO_SOCK
+    {(char **)&opt_tls_used}, {&opt_tls_cert}, {&opt_tls_key},
+    {&opt_tls_keypass},
+    {&opt_tls_extra}, {&opt_tls_trusted}, {&opt_tls_host},
+#endif
+
+    {(char **)&opt_batch}, {(char **)&opt_repeat},
+    {&opt_reqin}, {(char **)&opt_reqin_new_tid},
+    {&opt_reqout}, {&opt_rspin}, {&opt_rspout},
+
+    {(char **)&opt_use_mock_srv},
+#ifndef OPENSSL_NO_SOCK
+    {&opt_port}, {(char **)&opt_max_msgs},
+#endif
+    {&opt_srv_ref}, {&opt_srv_secret},
+    {&opt_srv_cert}, {&opt_srv_key}, {&opt_srv_keypass},
+    {&opt_srv_trusted}, {&opt_srv_untrusted},
+    {&opt_rsp_cert}, {&opt_rsp_extracerts}, {&opt_rsp_capubs},
+    {(char **)&opt_poll_count}, {(char **)&opt_check_after},
+    {(char **)&opt_grant_implicitconf},
+    {(char **)&opt_pkistatus}, {(char **)&opt_failure},
+    {(char **)&opt_failurebits}, {&opt_statusstring},
+    {(char **)&opt_send_error}, {(char **)&opt_send_unprotected},
+    {(char **)&opt_send_unprot_err}, {(char **)&opt_accept_unprotected},
+    {(char **)&opt_accept_unprot_err}, {(char **)&opt_accept_raverified},
+
+    {NULL}
+};
+
+#define FUNC (strcmp(OPENSSL_FUNC, "(unknown function)") == 0   \
+              ? "CMP" : OPENSSL_FUNC)
+#define CMP_print(bio, level, prefix, msg, a1, a2, a3) \
+    ((void)(level > opt_verbosity ? 0 : \
+            (BIO_printf(bio, "%s:%s:%d:CMP %s: " msg "\n", \
+                        FUNC, OPENSSL_FILE, OPENSSL_LINE, prefix, a1, a2, a3))))
+#define CMP_DEBUG(m, a1, a2, a3) \
+    CMP_print(bio_out, OSSL_CMP_LOG_DEBUG, "debug", m, a1, a2, a3)
+#define CMP_debug(msg)             CMP_DEBUG(msg"%s%s%s", "", "", "")
+#define CMP_debug1(msg, a1)        CMP_DEBUG(msg"%s%s",   a1, "", "")
+#define CMP_debug2(msg, a1, a2)    CMP_DEBUG(msg"%s",     a1, a2, "")
+#define CMP_debug3(msg, a1, a2, a3) CMP_DEBUG(msg,        a1, a2, a3)
+#define CMP_INFO(msg, a1, a2, a3) \
+    CMP_print(bio_out, OSSL_CMP_LOG_INFO, "info", msg, a1, a2, a3)
+#define CMP_info(msg)              CMP_INFO(msg"%s%s%s", "", "", "")
+#define CMP_info1(msg, a1)         CMP_INFO(msg"%s%s",   a1, "", "")
+#define CMP_info2(msg, a1, a2)     CMP_INFO(msg"%s",     a1, a2, "")
+#define CMP_info3(msg, a1, a2, a3) CMP_INFO(msg,         a1, a2, a3)
+#define CMP_WARN(m, a1, a2, a3) \
+    CMP_print(bio_out, OSSL_CMP_LOG_WARNING, "warning", m, a1, a2, a3)
+#define CMP_warn(msg)              CMP_WARN(msg"%s%s%s", "", "", "")
+#define CMP_warn1(msg, a1)         CMP_WARN(msg"%s%s",   a1, "", "")
+#define CMP_warn2(msg, a1, a2)     CMP_WARN(msg"%s",     a1, a2, "")
+#define CMP_warn3(msg, a1, a2, a3) CMP_WARN(msg,         a1, a2, a3)
+#define CMP_ERR(msg, a1, a2, a3) \
+    CMP_print(bio_err, OSSL_CMP_LOG_ERR, "error", msg, a1, a2, a3)
+#define CMP_err(msg)               CMP_ERR(msg"%s%s%s", "", "", "")
+#define CMP_err1(msg, a1)          CMP_ERR(msg"%s%s",   a1, "", "")
+#define CMP_err2(msg, a1, a2)      CMP_ERR(msg"%s",     a1, a2, "")
+#define CMP_err3(msg, a1, a2, a3)  CMP_ERR(msg,         a1, a2, a3)
+
+static int print_to_bio_out(const char *func, const char *file, int line,
+                            OSSL_CMP_severity level, const char *msg)
+{
+    return OSSL_CMP_print_to_bio(bio_out, func, file, line, level, msg);
+}
+
+static int print_to_bio_err(const char *func, const char *file, int line,
+                            OSSL_CMP_severity level, const char *msg)
+{
+    return OSSL_CMP_print_to_bio(bio_err, func, file, line, level, msg);
+}
+
+static int set_verbosity(int level)
+{
+    if (level < OSSL_CMP_LOG_EMERG || level > OSSL_CMP_LOG_MAX) {
+        CMP_err1("Logging verbosity level %d out of range (0 .. 8)", level);
+        return 0;
+    }
+    opt_verbosity = level;
+    return 1;
+}
+
+static EVP_PKEY *load_key_pwd(const char *uri, int format,
+                              const char *pass, ENGINE *eng, const char *desc)
+{
+    char *pass_string = get_passwd(pass, desc);
+    EVP_PKEY *pkey = load_key(uri, format, 0, pass_string, eng, desc);
+
+    clear_free(pass_string);
+    return pkey;
+}
+
+static X509 *load_cert_pwd(const char *uri, const char *pass, const char *desc)
+{
+    X509 *cert;
+    char *pass_string = get_passwd(pass, desc);
+
+    cert = load_cert_pass(uri, FORMAT_UNDEF, 0, pass_string, desc);
+    clear_free(pass_string);
+    return cert;
+}
+
+static X509_REQ *load_csr_autofmt(const char *infile, const char *desc)
+{
+    X509_REQ *csr;
+    BIO *bio_bak = bio_err;
+
+    bio_err = NULL; /* do not show errors on more than one try */
+    csr = load_csr(infile, FORMAT_PEM, desc);
+    bio_err = bio_bak;
+    if (csr == NULL) {
+        ERR_clear_error();
+        csr = load_csr(infile, FORMAT_ASN1, desc);
+    }
+    if (csr == NULL) {
+        ERR_print_errors(bio_err);
+        BIO_printf(bio_err, "error: unable to load %s from file '%s'\n", desc,
+                   infile);
+    } else {
+        EVP_PKEY *pkey = X509_REQ_get0_pubkey(csr);
+        int ret = do_X509_REQ_verify(csr, pkey, NULL /* vfyopts */);
+
+        if (pkey == NULL || ret < 0)
+            CMP_warn("error while verifying CSR self-signature");
+        else if (ret == 0)
+            CMP_warn("CSR self-signature does not match the contents");
+    }
+    return csr;
+}
+
+/* set expected host name/IP addr and clears the email addr in the given ts */
+static int truststore_set_host_etc(X509_STORE *ts, const char *host)
+{
+    X509_VERIFY_PARAM *ts_vpm = X509_STORE_get0_param(ts);
+
+    /* first clear any host names, IP, and email addresses */
+    if (!X509_VERIFY_PARAM_set1_host(ts_vpm, NULL, 0)
+            || !X509_VERIFY_PARAM_set1_ip(ts_vpm, NULL, 0)
+            || !X509_VERIFY_PARAM_set1_email(ts_vpm, NULL, 0))
+        return 0;
+    X509_VERIFY_PARAM_set_hostflags(ts_vpm,
+                                    X509_CHECK_FLAG_ALWAYS_CHECK_SUBJECT |
+                                    X509_CHECK_FLAG_NO_PARTIAL_WILDCARDS);
+    return (host != NULL && X509_VERIFY_PARAM_set1_ip_asc(ts_vpm, host))
+        || X509_VERIFY_PARAM_set1_host(ts_vpm, host, 0);
+}
+
+/* write OSSL_CMP_MSG DER-encoded to the specified file name item */
+static int write_PKIMESSAGE(const OSSL_CMP_MSG *msg, char **filenames)
+{
+    char *file;
+
+    if (msg == NULL || filenames == NULL) {
+        CMP_err("NULL arg to write_PKIMESSAGE");
+        return 0;
+    }
+    if (*filenames == NULL) {
+        CMP_err("not enough file names provided for writing PKIMessage");
+        return 0;
+    }
+
+    file = *filenames;
+    *filenames = next_item(file);
+    if (OSSL_CMP_MSG_write(file, msg) < 0) {
+        CMP_err1("cannot write PKIMessage to file '%s'", file);
+        return 0;
+    }
+    return 1;
+}
+
+/* read DER-encoded OSSL_CMP_MSG from the specified file name item */
+static OSSL_CMP_MSG *read_PKIMESSAGE(char **filenames)
+{
+    char *file;
+    OSSL_CMP_MSG *ret;
+
+    if (filenames == NULL) {
+        CMP_err("NULL arg to read_PKIMESSAGE");
+        return NULL;
+    }
+    if (*filenames == NULL) {
+        CMP_err("not enough file names provided for reading PKIMessage");
+        return NULL;
+    }
+
+    file = *filenames;
+    *filenames = next_item(file);
+
+    ret = OSSL_CMP_MSG_read(file, app_get0_libctx(), app_get0_propq());
+    if (ret == NULL)
+        CMP_err1("cannot read PKIMessage from file '%s'", file);
+    return ret;
+}
+
+/*-
+ * Sends the PKIMessage req and on success place the response in *res
+ * basically like OSSL_CMP_MSG_http_perform(), but in addition allows
+ * to dump the sequence of requests and responses to files and/or
+ * to take the sequence of requests and responses from files.
+ */
+static OSSL_CMP_MSG *read_write_req_resp(OSSL_CMP_CTX *ctx,
+                                         const OSSL_CMP_MSG *req)
+{
+    OSSL_CMP_MSG *req_new = NULL;
+    OSSL_CMP_MSG *res = NULL;
+    OSSL_CMP_PKIHEADER *hdr;
+    const char *prev_opt_rspin = opt_rspin;
+
+    if (req != NULL && opt_reqout != NULL
+            && !write_PKIMESSAGE(req, &opt_reqout))
+        goto err;
+    if (opt_reqin != NULL && opt_rspin == NULL) {
+        if ((req_new = read_PKIMESSAGE(&opt_reqin)) == NULL)
+            goto err;
+        /*-
+         * The transaction ID in req_new read from opt_reqin may not be fresh.
+         * In this case the server may complain "Transaction id already in use."
+         * The following workaround unfortunately requires re-protection.
+         */
+        if (opt_reqin_new_tid
+                && !OSSL_CMP_MSG_update_transactionID(ctx, req_new))
+            goto err;
+    }
+
+    if (opt_rspin != NULL) {
+        res = read_PKIMESSAGE(&opt_rspin);
+    } else {
+        const OSSL_CMP_MSG *actual_req = opt_reqin != NULL ? req_new : req;
+
+        res = opt_use_mock_srv
+            ? OSSL_CMP_CTX_server_perform(ctx, actual_req)
+            : OSSL_CMP_MSG_http_perform(ctx, actual_req);
+    }
+    if (res == NULL)
+        goto err;
+
+    if (opt_reqin != NULL || prev_opt_rspin != NULL) {
+        /* need to satisfy nonce and transactionID checks */
+        ASN1_OCTET_STRING *nonce;
+        ASN1_OCTET_STRING *tid;
+
+        hdr = OSSL_CMP_MSG_get0_header(res);
+        nonce = OSSL_CMP_HDR_get0_recipNonce(hdr);
+        tid = OSSL_CMP_HDR_get0_transactionID(hdr);
+        if (!OSSL_CMP_CTX_set1_senderNonce(ctx, nonce)
+                || !OSSL_CMP_CTX_set1_transactionID(ctx, tid)) {
+            OSSL_CMP_MSG_free(res);
+            res = NULL;
+            goto err;
+        }
+    }
+
+    if (opt_rspout != NULL && !write_PKIMESSAGE(res, &opt_rspout)) {
+        OSSL_CMP_MSG_free(res);
+        res = NULL;
+    }
+
+ err:
+    OSSL_CMP_MSG_free(req_new);
+    return res;
+}
+
+static int set_name(const char *str,
+                    int (*set_fn) (OSSL_CMP_CTX *ctx, const X509_NAME *name),
+                    OSSL_CMP_CTX *ctx, const char *desc)
+{
+    if (str != NULL) {
+        X509_NAME *n = parse_name(str, MBSTRING_ASC, 1, desc);
+
+        if (n == NULL)
+            return 0;
+        if (!(*set_fn) (ctx, n)) {
+            X509_NAME_free(n);
+            CMP_err("out of memory");
+            return 0;
+        }
+        X509_NAME_free(n);
+    }
+    return 1;
+}
+
+static int set_gennames(OSSL_CMP_CTX *ctx, char *names, const char *desc)
+{
+    char *next;
+
+    for (; names != NULL; names = next) {
+        GENERAL_NAME *n;
+
+        next = next_item(names);
+        if (strcmp(names, "critical") == 0) {
+            (void)OSSL_CMP_CTX_set_option(ctx,
+                                          OSSL_CMP_OPT_SUBJECTALTNAME_CRITICAL,
+                                          1);
+            continue;
+        }
+
+        /* try IP address first, then URI or domain name */
+        (void)ERR_set_mark();
+        n = a2i_GENERAL_NAME(NULL, NULL, NULL, GEN_IPADD, names, 0);
+        if (n == NULL)
+            n = a2i_GENERAL_NAME(NULL, NULL, NULL,
+                                 strchr(names, ':') != NULL ? GEN_URI : GEN_DNS,
+                                 names, 0);
+        (void)ERR_pop_to_mark();
+
+        if (n == NULL) {
+            CMP_err2("bad syntax of %s '%s'", desc, names);
+            return 0;
+        }
+        if (!OSSL_CMP_CTX_push1_subjectAltName(ctx, n)) {
+            GENERAL_NAME_free(n);
+            CMP_err("out of memory");
+            return 0;
+        }
+        GENERAL_NAME_free(n);
+    }
+    return 1;
+}
+
+static X509_STORE *load_trusted(char *input, int for_new_cert, const char *desc)
+{
+    X509_STORE *ts = load_certstore(input, opt_otherpass, desc, vpm);
+
+    if (ts == NULL)
+        return NULL;
+    X509_STORE_set_verify_cb(ts, X509_STORE_CTX_print_verify_cb);
+
+    /* copy vpm to store */
+    if (X509_STORE_set1_param(ts, vpm /* may be NULL */)
+            && (for_new_cert || truststore_set_host_etc(ts, NULL)))
+        return ts;
+    BIO_printf(bio_err, "error setting verification parameters for %s\n", desc);
+    OSSL_CMP_CTX_print_errors(cmp_ctx);
+    X509_STORE_free(ts);
+    return NULL;
+}
+
+typedef int (*add_X509_stack_fn_t)(void *ctx, const STACK_OF(X509) *certs);
+
+static int setup_certs(char *files, const char *desc, void *ctx,
+                       add_X509_stack_fn_t set1_fn)
+{
+    STACK_OF(X509) *certs;
+    int ok;
+
+    if (files == NULL)
+        return 1;
+    if ((certs = load_certs_multifile(files, opt_otherpass, desc, vpm)) == NULL)
+        return 0;
+    ok = (*set1_fn)(ctx, certs);
+    sk_X509_pop_free(certs, X509_free);
+    return ok;
+}
+
+
+/*
+ * parse and transform some options, checking their syntax.
+ * Returns 1 on success, 0 on error
+ */
+static int transform_opts(void)
+{
+    if (opt_cmd_s != NULL) {
+        if (!strcmp(opt_cmd_s, "ir")) {
+            opt_cmd = CMP_IR;
+        } else if (!strcmp(opt_cmd_s, "kur")) {
+            opt_cmd = CMP_KUR;
+        } else if (!strcmp(opt_cmd_s, "cr")) {
+            opt_cmd = CMP_CR;
+        } else if (!strcmp(opt_cmd_s, "p10cr")) {
+            opt_cmd = CMP_P10CR;
+        } else if (!strcmp(opt_cmd_s, "rr")) {
+            opt_cmd = CMP_RR;
+        } else if (!strcmp(opt_cmd_s, "genm")) {
+            opt_cmd = CMP_GENM;
+        } else {
+            CMP_err1("unknown cmp command '%s'", opt_cmd_s);
+            return 0;
+        }
+    } else {
+        CMP_err("no cmp command to execute");
+        return 0;
+    }
+
+#ifndef OPENSSL_NO_ENGINE
+# define FORMAT_OPTIONS (OPT_FMT_PEMDER | OPT_FMT_PKCS12 | OPT_FMT_ENGINE)
+#else
+# define FORMAT_OPTIONS (OPT_FMT_PEMDER | OPT_FMT_PKCS12)
+#endif
+
+    if (opt_keyform_s != NULL
+            && !opt_format(opt_keyform_s, FORMAT_OPTIONS, &opt_keyform)) {
+        CMP_err("unknown option given for key loading format");
+        return 0;
+    }
+
+#undef FORMAT_OPTIONS
+
+    if (opt_certform_s != NULL
+            && !opt_format(opt_certform_s, OPT_FMT_PEMDER, &opt_certform)) {
+        CMP_err("unknown option given for certificate storing format");
+        return 0;
+    }
+
+    return 1;
+}
+
+static OSSL_CMP_SRV_CTX *setup_srv_ctx(ENGINE *engine)
+{
+    OSSL_CMP_CTX *ctx; /* extra CMP (client) ctx partly used by server */
+    OSSL_CMP_SRV_CTX *srv_ctx = ossl_cmp_mock_srv_new(app_get0_libctx(),
+                                                      app_get0_propq());
+
+    if (srv_ctx == NULL)
+        return NULL;
+    ctx = OSSL_CMP_SRV_CTX_get0_cmp_ctx(srv_ctx);
+
+    if (opt_srv_ref == NULL) {
+        if (opt_srv_cert == NULL) {
+            /* opt_srv_cert should determine the sender */
+            CMP_err("must give -srv_ref for mock server if no -srv_cert given");
+            goto err;
+        }
+    } else {
+        if (!OSSL_CMP_CTX_set1_referenceValue(ctx, (unsigned char *)opt_srv_ref,
+                                              strlen(opt_srv_ref)))
+            goto err;
+    }
+
+    if (opt_srv_secret != NULL) {
+        int res;
+        char *pass_str = get_passwd(opt_srv_secret, "PBMAC secret of mock server");
+
+        if (pass_str != NULL) {
+            cleanse(opt_srv_secret);
+            res = OSSL_CMP_CTX_set1_secretValue(ctx, (unsigned char *)pass_str,
+                                                strlen(pass_str));
+            clear_free(pass_str);
+            if (res == 0)
+                goto err;
+        }
+    } else if (opt_srv_cert == NULL) {
+        CMP_err("mock server credentials must be given if -use_mock_srv or -port is used");
+        goto err;
+    } else {
+        CMP_warn("mock server will not be able to handle PBM-protected requests since -srv_secret is not given");
+    }
+
+    if (opt_srv_secret == NULL
+            && ((opt_srv_cert == NULL) != (opt_srv_key == NULL))) {
+        CMP_err("must give both -srv_cert and -srv_key options or neither");
+        goto err;
+    }
+    if (opt_srv_cert != NULL) {
+        X509 *srv_cert = load_cert_pwd(opt_srv_cert, opt_srv_keypass,
+                                       "certificate of the mock server");
+
+        if (srv_cert == NULL || !OSSL_CMP_CTX_set1_cert(ctx, srv_cert)) {
+            X509_free(srv_cert);
+            goto err;
+        }
+        X509_free(srv_cert);
+    }
+    if (opt_srv_key != NULL) {
+        EVP_PKEY *pkey = load_key_pwd(opt_srv_key, opt_keyform,
+                                      opt_srv_keypass,
+                                      engine, "private key for mock server cert");
+
+        if (pkey == NULL || !OSSL_CMP_CTX_set1_pkey(ctx, pkey)) {
+            EVP_PKEY_free(pkey);
+            goto err;
+        }
+        EVP_PKEY_free(pkey);
+    }
+    cleanse(opt_srv_keypass);
+
+    if (opt_srv_trusted != NULL) {
+        X509_STORE *ts =
+            load_trusted(opt_srv_trusted, 0, "certs trusted by mock server");
+
+        if (ts == NULL || !OSSL_CMP_CTX_set0_trustedStore(ctx, ts)) {
+            X509_STORE_free(ts);
+            goto err;
+        }
+    } else {
+        CMP_warn("mock server will not be able to handle signature-protected requests since -srv_trusted is not given");
+    }
+    if (!setup_certs(opt_srv_untrusted,
+                     "untrusted certificates for mock server", ctx,
+                     (add_X509_stack_fn_t)OSSL_CMP_CTX_set1_untrusted))
+        goto err;
+
+    if (opt_rsp_cert == NULL) {
+        CMP_warn("no -rsp_cert given for mock server");
+    } else {
+        X509 *cert = load_cert_pwd(opt_rsp_cert, opt_keypass,
+                                   "cert to be returned by the mock server");
+
+        if (cert == NULL)
+            goto err;
+        /* from server perspective the server is the client */
+        if (!ossl_cmp_mock_srv_set1_certOut(srv_ctx, cert)) {
+            X509_free(cert);
+            goto err;
+        }
+        X509_free(cert);
+    }
+    if (!setup_certs(opt_rsp_extracerts,
+                     "CMP extra certificates for mock server", srv_ctx,
+                     (add_X509_stack_fn_t)ossl_cmp_mock_srv_set1_chainOut))
+        goto err;
+    if (!setup_certs(opt_rsp_capubs, "caPubs for mock server", srv_ctx,
+                     (add_X509_stack_fn_t)ossl_cmp_mock_srv_set1_caPubsOut))
+        goto err;
+    (void)ossl_cmp_mock_srv_set_pollCount(srv_ctx, opt_poll_count);
+    (void)ossl_cmp_mock_srv_set_checkAfterTime(srv_ctx, opt_check_after);
+    if (opt_grant_implicitconf)
+        (void)OSSL_CMP_SRV_CTX_set_grant_implicit_confirm(srv_ctx, 1);
+
+    if (opt_failure != INT_MIN) { /* option has been set explicity */
+        if (opt_failure < 0 || OSSL_CMP_PKIFAILUREINFO_MAX < opt_failure) {
+            CMP_err1("-failure out of range, should be >= 0 and <= %d",
+                     OSSL_CMP_PKIFAILUREINFO_MAX);
+            goto err;
+        }
+        if (opt_failurebits != 0)
+            CMP_warn("-failurebits overrides -failure");
+        else
+            opt_failurebits = 1 << opt_failure;
+    }
+    if ((unsigned)opt_failurebits > OSSL_CMP_PKIFAILUREINFO_MAX_BIT_PATTERN) {
+        CMP_err("-failurebits out of range");
+        goto err;
+    }
+    if (!ossl_cmp_mock_srv_set_statusInfo(srv_ctx, opt_pkistatus,
+                                          opt_failurebits, opt_statusstring))
+        goto err;
+
+    if (opt_send_error)
+        (void)ossl_cmp_mock_srv_set_send_error(srv_ctx, 1);
+
+    if (opt_send_unprotected)
+        (void)OSSL_CMP_CTX_set_option(ctx, OSSL_CMP_OPT_UNPROTECTED_SEND, 1);
+    if (opt_send_unprot_err)
+        (void)OSSL_CMP_SRV_CTX_set_send_unprotected_errors(srv_ctx, 1);
+    if (opt_accept_unprotected)
+        (void)OSSL_CMP_SRV_CTX_set_accept_unprotected(srv_ctx, 1);
+    if (opt_accept_unprot_err)
+        (void)OSSL_CMP_CTX_set_option(ctx, OSSL_CMP_OPT_UNPROTECTED_ERRORS, 1);
+    if (opt_accept_raverified)
+        (void)OSSL_CMP_SRV_CTX_set_accept_raverified(srv_ctx, 1);
+
+    return srv_ctx;
+
+ err:
+    ossl_cmp_mock_srv_free(srv_ctx);
+    return NULL;
+}
+
+/*
+ * set up verification aspects of OSSL_CMP_CTX w.r.t. opts from config file/CLI.
+ * Returns pointer on success, NULL on error
+ */
+static int setup_verification_ctx(OSSL_CMP_CTX *ctx)
+{
+    if (!setup_certs(opt_untrusted, "untrusted certificates", ctx,
+                     (add_X509_stack_fn_t)OSSL_CMP_CTX_set1_untrusted))
+        return 0;
+
+    if (opt_srvcert != NULL || opt_trusted != NULL) {
+        X509 *srvcert;
+        X509_STORE *ts;
+        int ok;
+
+        if (opt_srvcert != NULL) {
+            if (opt_trusted != NULL) {
+                CMP_warn("-trusted option is ignored since -srvcert option is present");
+                opt_trusted = NULL;
+            }
+            if (opt_recipient != NULL) {
+                CMP_warn("-recipient option is ignored since -srvcert option is present");
+                opt_recipient = NULL;
+            }
+            srvcert = load_cert_pwd(opt_srvcert, opt_otherpass,
+                                    "directly trusted CMP server certificate");
+            ok = srvcert != NULL && OSSL_CMP_CTX_set1_srvCert(ctx, srvcert);
+            X509_free(srvcert);
+            if (!ok)
+                return 0;
+        }
+        if (opt_trusted != NULL) {
+            /*
+             * the 0 arg below clears any expected host/ip/email address;
+             * opt_expect_sender is used instead
+             */
+            ts = load_trusted(opt_trusted, 0, "certs trusted by client");
+
+            if (ts == NULL || !OSSL_CMP_CTX_set0_trustedStore(ctx, ts)) {
+                X509_STORE_free(ts);
+                return 0;
+            }
+        }
+    }
+
+    if (opt_ignore_keyusage)
+        (void)OSSL_CMP_CTX_set_option(ctx, OSSL_CMP_OPT_IGNORE_KEYUSAGE, 1);
+
+    if (opt_unprotected_errors)
+        (void)OSSL_CMP_CTX_set_option(ctx, OSSL_CMP_OPT_UNPROTECTED_ERRORS, 1);
+
+    if (opt_out_trusted != NULL) { /* for use in OSSL_CMP_certConf_cb() */
+        X509_VERIFY_PARAM *out_vpm = NULL;
+        X509_STORE *out_trusted =
+            load_trusted(opt_out_trusted, 1,
+                         "trusted certs for verifying newly enrolled cert");
+
+        if (out_trusted == NULL)
+            return 0;
+        /* ignore any -attime here, new certs are current anyway */
+        out_vpm = X509_STORE_get0_param(out_trusted);
+        X509_VERIFY_PARAM_clear_flags(out_vpm, X509_V_FLAG_USE_CHECK_TIME);
+
+        (void)OSSL_CMP_CTX_set_certConf_cb_arg(ctx, out_trusted);
+    }
+
+    if (opt_disable_confirm)
+        (void)OSSL_CMP_CTX_set_option(ctx, OSSL_CMP_OPT_DISABLE_CONFIRM, 1);
+
+    if (opt_implicit_confirm)
+        (void)OSSL_CMP_CTX_set_option(ctx, OSSL_CMP_OPT_IMPLICIT_CONFIRM, 1);
+
+    return 1;
+}
+
+#ifndef OPENSSL_NO_SOCK
+/*
+ * set up ssl_ctx for the OSSL_CMP_CTX based on options from config file/CLI.
+ * Returns pointer on success, NULL on error
+ */
+static SSL_CTX *setup_ssl_ctx(OSSL_CMP_CTX *ctx, const char *host,
+                              ENGINE *engine)
+{
+    STACK_OF(X509) *untrusted = OSSL_CMP_CTX_get0_untrusted(ctx);
+    EVP_PKEY *pkey = NULL;
+    X509_STORE *trust_store = NULL;
+    SSL_CTX *ssl_ctx;
+    int i;
+
+    ssl_ctx = SSL_CTX_new(TLS_client_method());
+    if (ssl_ctx == NULL)
+        return NULL;
+
+    if (opt_tls_trusted != NULL) {
+        trust_store = load_trusted(opt_tls_trusted, 0, "trusted TLS certs");
+        if (trust_store == NULL)
+            goto err;
+        SSL_CTX_set_cert_store(ssl_ctx, trust_store);
+    }
+
+    if (opt_tls_cert != NULL && opt_tls_key != NULL) {
+        X509 *cert;
+        STACK_OF(X509) *certs = NULL;
+        int ok;
+
+        if (!load_cert_certs(opt_tls_cert, &cert, &certs, 0, opt_tls_keypass,
+                             "TLS client certificate (optionally with chain)",
+                             vpm))
+            /* need opt_tls_keypass if opt_tls_cert is encrypted PKCS#12 file */
+            goto err;
+
+        ok = SSL_CTX_use_certificate(ssl_ctx, cert) > 0;
+        X509_free(cert);
+
+        /*
+         * Any further certs and any untrusted certs are used for constructing
+         * the chain to be provided with the TLS client cert to the TLS server.
+         */
+        if (!ok || !SSL_CTX_set0_chain(ssl_ctx, certs)) {
+            CMP_err1("unable to use client TLS certificate file '%s'",
+                     opt_tls_cert);
+            sk_X509_pop_free(certs, X509_free);
+            goto err;
+        }
+        for (i = 0; i < sk_X509_num(untrusted); i++) {
+            cert = sk_X509_value(untrusted, i);
+            if (!SSL_CTX_add1_chain_cert(ssl_ctx, cert)) {
+                CMP_err("could not add untrusted cert to TLS client cert chain");
+                goto err;
+            }
+        }
+
+        {
+            X509_VERIFY_PARAM *tls_vpm = NULL;
+            unsigned long bak_flags = 0; /* compiler warns without init */
+
+            if (trust_store != NULL) {
+                tls_vpm = X509_STORE_get0_param(trust_store);
+                bak_flags = X509_VERIFY_PARAM_get_flags(tls_vpm);
+                /* disable any cert status/revocation checking etc. */
+                X509_VERIFY_PARAM_clear_flags(tls_vpm,
+                                              ~(X509_V_FLAG_USE_CHECK_TIME
+                                                | X509_V_FLAG_NO_CHECK_TIME));
+            }
+            CMP_debug("trying to build cert chain for own TLS cert");
+            if (SSL_CTX_build_cert_chain(ssl_ctx,
+                                         SSL_BUILD_CHAIN_FLAG_UNTRUSTED |
+                                         SSL_BUILD_CHAIN_FLAG_NO_ROOT)) {
+                CMP_debug("success building cert chain for own TLS cert");
+            } else {
+                OSSL_CMP_CTX_print_errors(ctx);
+                CMP_warn("could not build cert chain for own TLS cert");
+            }
+            if (trust_store != NULL)
+                X509_VERIFY_PARAM_set_flags(tls_vpm, bak_flags);
+        }
+
+        /* If present we append to the list also the certs from opt_tls_extra */
+        if (opt_tls_extra != NULL) {
+            STACK_OF(X509) *tls_extra = load_certs_multifile(opt_tls_extra,
+                                                             opt_otherpass,
+                                                             "extra certificates for TLS",
+                                                             vpm);
+            int res = 1;
+
+            if (tls_extra == NULL)
+                goto err;
+            for (i = 0; i < sk_X509_num(tls_extra); i++) {
+                cert = sk_X509_value(tls_extra, i);
+                if (res != 0)
+                    res = SSL_CTX_add_extra_chain_cert(ssl_ctx, cert);
+                if (res == 0)
+                    X509_free(cert);
+            }
+            sk_X509_free(tls_extra);
+            if (res == 0) {
+                BIO_printf(bio_err, "error: unable to add TLS extra certs\n");
+                goto err;
+            }
+        }
+
+        pkey = load_key_pwd(opt_tls_key, opt_keyform, opt_tls_keypass,
+                            engine, "TLS client private key");
+        cleanse(opt_tls_keypass);
+        if (pkey == NULL)
+            goto err;
+        /*
+         * verify the key matches the cert,
+         * not using SSL_CTX_check_private_key(ssl_ctx)
+         * because it gives poor and sometimes misleading diagnostics
+         */
+        if (!X509_check_private_key(SSL_CTX_get0_certificate(ssl_ctx),
+                                    pkey)) {
+            CMP_err2("TLS private key '%s' does not match the TLS certificate '%s'\n",
+                     opt_tls_key, opt_tls_cert);
+            EVP_PKEY_free(pkey);
+            pkey = NULL; /* otherwise, for some reason double free! */
+            goto err;
+        }
+        if (SSL_CTX_use_PrivateKey(ssl_ctx, pkey) <= 0) {
+            CMP_err1("unable to use TLS client private key '%s'", opt_tls_key);
+            EVP_PKEY_free(pkey);
+            pkey = NULL; /* otherwise, for some reason double free! */
+            goto err;
+        }
+        EVP_PKEY_free(pkey); /* we do not need the handle any more */
+    }
+    if (opt_tls_trusted != NULL) {
+        /* enable and parameterize server hostname/IP address check */
+        if (!truststore_set_host_etc(trust_store,
+                                     opt_tls_host != NULL ? opt_tls_host : host))
+            goto err;
+        SSL_CTX_set_verify(ssl_ctx, SSL_VERIFY_PEER, NULL);
+    }
+    return ssl_ctx;
+ err:
+    SSL_CTX_free(ssl_ctx);
+    return NULL;
+}
+#endif /* OPENSSL_NO_SOCK */
+
+/*
+ * set up protection aspects of OSSL_CMP_CTX based on options from config
+ * file/CLI while parsing options and checking their consistency.
+ * Returns 1 on success, 0 on error
+ */
+static int setup_protection_ctx(OSSL_CMP_CTX *ctx, ENGINE *engine)
+{
+    if (!opt_unprotected_requests && opt_secret == NULL && opt_key == NULL) {
+        CMP_err("must give -key or -secret unless -unprotected_requests is used");
+        return 0;
+    }
+
+    if (opt_ref == NULL && opt_cert == NULL && opt_subject == NULL) {
+        /* cert or subject should determine the sender */
+        CMP_err("must give -ref if no -cert and no -subject given");
+        return 0;
+    }
+    if (!opt_secret && ((opt_cert == NULL) != (opt_key == NULL))) {
+        CMP_err("must give both -cert and -key options or neither");
+        return 0;
+    }
+    if (opt_secret != NULL) {
+        char *pass_string = get_passwd(opt_secret, "PBMAC");
+        int res;
+
+        if (pass_string != NULL) {
+            cleanse(opt_secret);
+            res = OSSL_CMP_CTX_set1_secretValue(ctx,
+                                                (unsigned char *)pass_string,
+                                                strlen(pass_string));
+            clear_free(pass_string);
+            if (res == 0)
+                return 0;
+        }
+        if (opt_cert != NULL || opt_key != NULL)
+            CMP_warn("-cert and -key not used for protection since -secret is given");
+    }
+    if (opt_ref != NULL
+            && !OSSL_CMP_CTX_set1_referenceValue(ctx, (unsigned char *)opt_ref,
+                                                 strlen(opt_ref)))
+        return 0;
+
+    if (opt_key != NULL) {
+        EVP_PKEY *pkey = load_key_pwd(opt_key, opt_keyform, opt_keypass, engine,
+                                      "private key for CMP client certificate");
+
+        if (pkey == NULL || !OSSL_CMP_CTX_set1_pkey(ctx, pkey)) {
+            EVP_PKEY_free(pkey);
+            return 0;
+        }
+        EVP_PKEY_free(pkey);
+    }
+    if (opt_secret == NULL && opt_srvcert == NULL && opt_trusted == NULL)
+        CMP_warn("will not authenticate server due to missing -secret, -trusted, or -srvcert");
+
+    if (opt_cert != NULL) {
+        X509 *cert;
+        STACK_OF(X509) *certs = NULL;
+        X509_STORE *own_trusted = NULL;
+        int ok;
+
+        if (!load_cert_certs(opt_cert, &cert, &certs, 0, opt_keypass,
+                             "CMP client certificate (optionally with chain)",
+                             vpm))
+            /* opt_keypass is needed if opt_cert is an encrypted PKCS#12 file */
+            return 0;
+        ok = OSSL_CMP_CTX_set1_cert(ctx, cert);
+        X509_free(cert);
+        if (!ok) {
+            CMP_err("out of memory");
+        } else {
+            if (opt_own_trusted != NULL) {
+                own_trusted = load_trusted(opt_own_trusted, 0,
+                                           "trusted certs for verifying own CMP signer cert");
+                ok = own_trusted != NULL;
+            }
+            ok = ok && OSSL_CMP_CTX_build_cert_chain(ctx, own_trusted, certs);
+        }
+        X509_STORE_free(own_trusted);
+        sk_X509_pop_free(certs, X509_free);
+        if (!ok)
+            return 0;
+    } else if (opt_own_trusted != NULL) {
+        CMP_warn("-own_trusted option is ignored without -cert");
+    }
+
+    if (!setup_certs(opt_extracerts, "extra certificates for CMP", ctx,
+                     (add_X509_stack_fn_t)OSSL_CMP_CTX_set1_extraCertsOut))
+        return 0;
+    cleanse(opt_otherpass);
+
+    if (opt_unprotected_requests)
+        (void)OSSL_CMP_CTX_set_option(ctx, OSSL_CMP_OPT_UNPROTECTED_SEND, 1);
+
+    if (opt_digest != NULL) {
+        int digest = OBJ_ln2nid(opt_digest);
+
+        if (digest == NID_undef) {
+            CMP_err1("digest algorithm name not recognized: '%s'", opt_digest);
+            return 0;
+        }
+        if (!OSSL_CMP_CTX_set_option(ctx, OSSL_CMP_OPT_DIGEST_ALGNID, digest)
+            || !OSSL_CMP_CTX_set_option(ctx, OSSL_CMP_OPT_OWF_ALGNID, digest)) {
+            CMP_err1("digest algorithm name not supported: '%s'", opt_digest);
+            return 0;
+        }
+    }
+
+    if (opt_mac != NULL) {
+        int mac = OBJ_ln2nid(opt_mac);
+        if (mac == NID_undef) {
+            CMP_err1("MAC algorithm name not recognized: '%s'", opt_mac);
+            return 0;
+        }
+        (void)OSSL_CMP_CTX_set_option(ctx, OSSL_CMP_OPT_MAC_ALGNID, mac);
+    }
+    return 1;
+}
+
+/*
+ * set up IR/CR/KUR/CertConf/RR specific parts of the OSSL_CMP_CTX
+ * based on options from config file/CLI.
+ * Returns pointer on success, NULL on error
+ */
+static int setup_request_ctx(OSSL_CMP_CTX *ctx, ENGINE *engine)
+{
+    X509_REQ *csr = NULL;
+    X509_EXTENSIONS *exts = NULL;
+    X509V3_CTX ext_ctx;
+
+    if (opt_subject == NULL
+            && opt_csr == NULL && opt_oldcert == NULL && opt_cert == NULL
+            && opt_cmd != CMP_RR && opt_cmd != CMP_GENM)
+        CMP_warn("no -subject given; no -csr or -oldcert or -cert available for fallback");
+
+    if (opt_cmd == CMP_IR || opt_cmd == CMP_CR || opt_cmd == CMP_KUR) {
+        if (opt_newkey == NULL && opt_key == NULL && opt_csr == NULL) {
+            CMP_err("missing -newkey (or -key) to be certified and no -csr given");
+            return 0;
+        }
+        if (opt_certout == NULL) {
+            CMP_err("-certout not given, nowhere to save newly enrolled certificate");
+            return 0;
+        }
+        if (!set_name(opt_subject, OSSL_CMP_CTX_set1_subjectName, ctx, "subject")
+                || !set_name(opt_issuer, OSSL_CMP_CTX_set1_issuer, ctx, "issuer"))
+            return 0;
+    } else {
+        const char *msg = "option is ignored for commands other than 'ir', 'cr', and 'kur'";
+
+        if (opt_subject != NULL) {
+            if (opt_ref == NULL && opt_cert == NULL) {
+                /* use subject as default sender unless oldcert subject is used */
+                if (!set_name(opt_subject, OSSL_CMP_CTX_set1_subjectName, ctx, "subject"))
+                    return 0;
+            } else {
+                CMP_warn1("-subject %s since -ref or -cert is given", msg);
+            }
+        }
+        if (opt_issuer != NULL)
+            CMP_warn1("-issuer %s", msg);
+        if (opt_reqexts != NULL)
+            CMP_warn1("-reqexts %s", msg);
+        if (opt_san_nodefault)
+            CMP_warn1("-san_nodefault %s", msg);
+        if (opt_sans != NULL)
+            CMP_warn1("-sans %s", msg);
+        if (opt_policies != NULL)
+            CMP_warn1("-policies %s", msg);
+        if (opt_policy_oids != NULL)
+            CMP_warn1("-policy_oids %s", msg);
+    }
+    if (opt_cmd == CMP_KUR) {
+        char *ref_cert = opt_oldcert != NULL ? opt_oldcert : opt_cert;
+
+        if (ref_cert == NULL && opt_csr == NULL) {
+            CMP_err("missing -oldcert for certificate to be updated and no -csr given");
+            return 0;
+        }
+        if (opt_subject != NULL)
+            CMP_warn2("given -subject '%s' overrides the subject of '%s' for KUR",
+                      opt_subject, ref_cert != NULL ? ref_cert : opt_csr);
+    }
+    if (opt_cmd == CMP_RR) {
+        if (opt_oldcert == NULL && opt_csr == NULL) {
+            CMP_err("missing -oldcert for certificate to be revoked and no -csr given");
+            return 0;
+        }
+        if (opt_oldcert != NULL && opt_csr != NULL)
+            CMP_warn("ignoring -csr since certificate to be revoked is given");
+    }
+    if (opt_cmd == CMP_P10CR && opt_csr == NULL) {
+        CMP_err("missing PKCS#10 CSR for p10cr");
+        return 0;
+    }
+
+    if (opt_recipient == NULL && opt_srvcert == NULL && opt_issuer == NULL
+            && opt_oldcert == NULL && opt_cert == NULL)
+        CMP_warn("missing -recipient, -srvcert, -issuer, -oldcert or -cert; recipient will be set to \"NULL-DN\"");
+
+    if (opt_cmd == CMP_P10CR || opt_cmd == CMP_RR) {
+        const char *msg = "option is ignored for 'p10cr' and 'rr' commands";
+
+        if (opt_newkeypass != NULL)
+            CMP_warn1("-newkeytype %s", msg);
+        if (opt_newkey != NULL)
+            CMP_warn1("-newkey %s", msg);
+        if (opt_days != 0)
+            CMP_warn1("-days %s", msg);
+        if (opt_popo != OSSL_CRMF_POPO_NONE - 1)
+            CMP_warn1("-popo %s", msg);
+    } else if (opt_newkey != NULL) {
+        const char *file = opt_newkey;
+        const int format = opt_keyform;
+        const char *pass = opt_newkeypass;
+        const char *desc = "new private key for cert to be enrolled";
+        EVP_PKEY *pkey;
+        int priv = 1;
+        BIO *bio_bak = bio_err;
+
+        bio_err = NULL; /* suppress diagnostics on first try loading key */
+        pkey = load_key_pwd(file, format, pass, engine, desc);
+        bio_err = bio_bak;
+        if (pkey == NULL) {
+            ERR_clear_error();
+            desc = opt_csr == NULL
+            ? "fallback public key for cert to be enrolled"
+            : "public key for checking cert resulting from p10cr";
+            pkey = load_pubkey(file, format, 0, pass, engine, desc);
+            priv = 0;
+        }
+        cleanse(opt_newkeypass);
+        if (pkey == NULL || !OSSL_CMP_CTX_set0_newPkey(ctx, priv, pkey)) {
+            EVP_PKEY_free(pkey);
+            return 0;
+        }
+    }
+
+    if (opt_days > 0
+            && !OSSL_CMP_CTX_set_option(ctx, OSSL_CMP_OPT_VALIDITY_DAYS,
+                                        opt_days)) {
+        CMP_err("could not set requested cert validity period");
+        return 0;
+    }
+
+    if (opt_policies != NULL && opt_policy_oids != NULL) {
+        CMP_err("cannot have policies both via -policies and via -policy_oids");
+        return 0;
+    }
+
+    if (opt_csr != NULL) {
+        if (opt_cmd == CMP_GENM) {
+            CMP_warn("-csr option is ignored for command 'genm'");
+        } else {
+            if ((csr = load_csr_autofmt(opt_csr, "PKCS#10 CSR")) == NULL)
+                return 0;
+            if (!OSSL_CMP_CTX_set1_p10CSR(ctx, csr))
+                goto oom;
+        }
+    }
+    if (opt_reqexts != NULL || opt_policies != NULL) {
+        if ((exts = sk_X509_EXTENSION_new_null()) == NULL)
+            goto oom;
+        X509V3_set_ctx(&ext_ctx, NULL, NULL, csr, NULL, X509V3_CTX_REPLACE);
+        X509V3_set_nconf(&ext_ctx, conf);
+        if (opt_reqexts != NULL
+            && !X509V3_EXT_add_nconf_sk(conf, &ext_ctx, opt_reqexts, &exts)) {
+            CMP_err1("cannot load certificate request extension section '%s'",
+                     opt_reqexts);
+            goto exts_err;
+        }
+        if (opt_policies != NULL
+            && !X509V3_EXT_add_nconf_sk(conf, &ext_ctx, opt_policies, &exts)) {
+            CMP_err1("cannot load policy cert request extension section '%s'",
+                     opt_policies);
+            goto exts_err;
+        }
+        OSSL_CMP_CTX_set0_reqExtensions(ctx, exts);
+    }
+    X509_REQ_free(csr);
+    /* After here, must not goto oom/exts_err */
+
+    if (OSSL_CMP_CTX_reqExtensions_have_SAN(ctx) && opt_sans != NULL) {
+        CMP_err("cannot have Subject Alternative Names both via -reqexts and via -sans");
+        return 0;
+    }
+    if (!set_gennames(ctx, opt_sans, "Subject Alternative Name"))
+        return 0;
+
+    if (opt_san_nodefault) {
+        if (opt_sans != NULL)
+            CMP_warn("-opt_san_nodefault has no effect when -sans is used");
+        (void)OSSL_CMP_CTX_set_option(ctx,
+                                      OSSL_CMP_OPT_SUBJECTALTNAME_NODEFAULT, 1);
+    }
+
+    if (opt_policy_oids_critical) {
+        if (opt_policy_oids == NULL)
+            CMP_warn("-opt_policy_oids_critical has no effect unless -policy_oids is given");
+        (void)OSSL_CMP_CTX_set_option(ctx, OSSL_CMP_OPT_POLICIES_CRITICAL, 1);
+    }
+
+    while (opt_policy_oids != NULL) {
+        ASN1_OBJECT *policy;
+        POLICYINFO *pinfo;
+        char *next = next_item(opt_policy_oids);
+
+        if ((policy = OBJ_txt2obj(opt_policy_oids, 1)) == 0) {
+            CMP_err1("unknown policy OID '%s'", opt_policy_oids);
+            return 0;
+        }
+
+        if ((pinfo = POLICYINFO_new()) == NULL) {
+            ASN1_OBJECT_free(policy);
+            return 0;
+        }
+        pinfo->policyid = policy;
+
+        if (!OSSL_CMP_CTX_push0_policy(ctx, pinfo)) {
+            CMP_err1("cannot add policy with OID '%s'", opt_policy_oids);
+            POLICYINFO_free(pinfo);
+            return 0;
+        }
+        opt_policy_oids = next;
+    }
+
+    if (opt_popo >= OSSL_CRMF_POPO_NONE)
+        (void)OSSL_CMP_CTX_set_option(ctx, OSSL_CMP_OPT_POPO_METHOD, opt_popo);
+
+    if (opt_oldcert != NULL) {
+        if (opt_cmd == CMP_GENM) {
+            CMP_warn("-oldcert option is ignored for command 'genm'");
+        } else {
+            X509 *oldcert = load_cert_pwd(opt_oldcert, opt_keypass,
+                                          opt_cmd == CMP_KUR ?
+                                          "certificate to be updated" :
+                                          opt_cmd == CMP_RR ?
+                                          "certificate to be revoked" :
+                                          "reference certificate (oldcert)");
+            /* opt_keypass needed if opt_oldcert is an encrypted PKCS#12 file */
+
+            if (oldcert == NULL)
+                return 0;
+            if (!OSSL_CMP_CTX_set1_oldCert(ctx, oldcert)) {
+                X509_free(oldcert);
+                CMP_err("out of memory");
+                return 0;
+            }
+            X509_free(oldcert);
+        }
+    }
+    cleanse(opt_keypass);
+    if (opt_revreason > CRL_REASON_NONE)
+        (void)OSSL_CMP_CTX_set_option(ctx, OSSL_CMP_OPT_REVOCATION_REASON,
+                                      opt_revreason);
+
+    return 1;
+
+ oom:
+    CMP_err("out of memory");
+ exts_err:
+    sk_X509_EXTENSION_pop_free(exts, X509_EXTENSION_free);
+    X509_REQ_free(csr);
+    return 0;
+}
+
+static int handle_opt_geninfo(OSSL_CMP_CTX *ctx)
+{
+    long value;
+    ASN1_OBJECT *type;
+    ASN1_INTEGER *aint;
+    ASN1_TYPE *val;
+    OSSL_CMP_ITAV *itav;
+    char *endstr;
+    char *valptr = strchr(opt_geninfo, ':');
+
+    if (valptr == NULL) {
+        CMP_err("missing ':' in -geninfo option");
+        return 0;
+    }
+    valptr[0] = '\0';
+    valptr++;
+
+    if (OPENSSL_strncasecmp(valptr, "int:", 4) != 0) {
+        CMP_err("missing 'int:' in -geninfo option");
+        return 0;
+    }
+    valptr += 4;
+
+    value = strtol(valptr, &endstr, 10);
+    if (endstr == valptr || *endstr != '\0') {
+        CMP_err("cannot parse int in -geninfo option");
+        return 0;
+    }
+
+    type = OBJ_txt2obj(opt_geninfo, 1);
+    if (type == NULL) {
+        CMP_err("cannot parse OID in -geninfo option");
+        return 0;
+    }
+
+    if ((aint = ASN1_INTEGER_new()) == NULL)
+        goto oom;
+
+    val = ASN1_TYPE_new();
+    if (!ASN1_INTEGER_set(aint, value) || val == NULL) {
+        ASN1_INTEGER_free(aint);
+        goto oom;
+    }
+    ASN1_TYPE_set(val, V_ASN1_INTEGER, aint);
+    itav = OSSL_CMP_ITAV_create(type, val);
+    if (itav == NULL) {
+        ASN1_TYPE_free(val);
+        goto oom;
+    }
+
+    if (!OSSL_CMP_CTX_push0_geninfo_ITAV(ctx, itav)) {
+        OSSL_CMP_ITAV_free(itav);
+        return 0;
+    }
+    return 1;
+
+ oom:
+    ASN1_OBJECT_free(type);
+    CMP_err("out of memory");
+    return 0;
+}
+
+
+/*
+ * set up the client-side OSSL_CMP_CTX based on options from config file/CLI
+ * while parsing options and checking their consistency.
+ * Prints reason for error to bio_err.
+ * Returns 1 on success, 0 on error
+ */
+static int setup_client_ctx(OSSL_CMP_CTX *ctx, ENGINE *engine)
+{
+    int ret = 0;
+    char *host = NULL, *port = NULL, *path = NULL, *used_path = opt_path;
+#ifndef OPENSSL_NO_SOCK
+    int portnum, ssl;
+    static char server_port[32] = { '\0' };
+    const char *proxy_host = NULL;
+#endif
+    char server_buf[200] = "mock server";
+    char proxy_buf[200] = "";
+
+    if (!opt_use_mock_srv && opt_rspin == NULL) { /* note: -port is not given */
+#ifndef OPENSSL_NO_SOCK
+        if (opt_server == NULL) {
+            CMP_err("missing -server or -use_mock_srv or -rspin option");
+            goto err;
+        }
+#else
+        CMP_err("missing -use_mock_srv or -rspin option; -server option is not supported due to no-sock build");
+        goto err;
+#endif
+    }
+#ifndef OPENSSL_NO_SOCK
+    if (opt_server == NULL) {
+        if (opt_proxy != NULL)
+            CMP_warn("ignoring -proxy option since -server is not given");
+        if (opt_no_proxy != NULL)
+            CMP_warn("ignoring -no_proxy option since -server is not given");
+        if (opt_tls_used) {
+            CMP_warn("ignoring -tls_used option since -server is not given");
+            opt_tls_used = 0;
+        }
+        goto set_path;
+    }
+    if (!OSSL_HTTP_parse_url(opt_server, &ssl, NULL /* user */, &host, &port,
+                             &portnum, &path, NULL /* q */, NULL /* frag */)) {
+        CMP_err1("cannot parse -server URL: %s", opt_server);
+        goto err;
+    }
+    if (ssl && !opt_tls_used) {
+        CMP_err("missing -tls_used option since -server URL indicates https");
+        goto err;
+    }
+
+    BIO_snprintf(server_port, sizeof(server_port), "%s", port);
+    if (opt_path == NULL)
+        used_path = path;
+    if (!OSSL_CMP_CTX_set1_server(ctx, host)
+            || !OSSL_CMP_CTX_set_serverPort(ctx, portnum))
+        goto oom;
+    if (opt_proxy != NULL && !OSSL_CMP_CTX_set1_proxy(ctx, opt_proxy))
+        goto oom;
+    if (opt_no_proxy != NULL && !OSSL_CMP_CTX_set1_no_proxy(ctx, opt_no_proxy))
+        goto oom;
+    (void)BIO_snprintf(server_buf, sizeof(server_buf), "http%s://%s:%s/%s",
+                       opt_tls_used ? "s" : "", host, port,
+                       *used_path == '/' ? used_path + 1 : used_path);
+
+    proxy_host = OSSL_HTTP_adapt_proxy(opt_proxy, opt_no_proxy, host, ssl);
+    if (proxy_host != NULL)
+        (void)BIO_snprintf(proxy_buf, sizeof(proxy_buf), " via %s", proxy_host);
+
+ set_path:
+#endif
+
+    if (!OSSL_CMP_CTX_set1_serverPath(ctx, used_path))
+        goto oom;
+    if (!transform_opts())
+        goto err;
+
+    if (opt_infotype_s != NULL) {
+        char id_buf[100] = "id-it-";
+
+        strncat(id_buf, opt_infotype_s, sizeof(id_buf) - strlen(id_buf) - 1);
+        if ((opt_infotype = OBJ_sn2nid(id_buf)) == NID_undef) {
+            CMP_err("unknown OID name in -infotype option");
+            goto err;
+        }
+    }
+
+    if (!setup_verification_ctx(ctx))
+        goto err;
+
+    if (opt_keep_alive != 1)
+        (void)OSSL_CMP_CTX_set_option(ctx, OSSL_CMP_OPT_KEEP_ALIVE,
+                                      opt_keep_alive);
+    if (opt_total_timeout > 0 && opt_msg_timeout > 0
+            && opt_total_timeout < opt_msg_timeout) {
+        CMP_err2("-total_timeout argument = %d must not be < %d (-msg_timeout)",
+                 opt_total_timeout, opt_msg_timeout);
+        goto err;
+    }
+    if (opt_msg_timeout >= 0) /* must do this before setup_ssl_ctx() */
+        (void)OSSL_CMP_CTX_set_option(ctx, OSSL_CMP_OPT_MSG_TIMEOUT,
+                                      opt_msg_timeout);
+    if (opt_total_timeout >= 0)
+        (void)OSSL_CMP_CTX_set_option(ctx, OSSL_CMP_OPT_TOTAL_TIMEOUT,
+                                      opt_total_timeout);
+
+    if (opt_reqin != NULL && opt_rspin != NULL)
+        CMP_warn("-reqin is ignored since -rspin is present");
+    if (opt_reqin_new_tid && opt_reqin == NULL)
+        CMP_warn("-reqin_new_tid is ignored since -reqin is not present");
+    if (opt_reqin != NULL || opt_reqout != NULL
+            || opt_rspin != NULL || opt_rspout != NULL || opt_use_mock_srv)
+        (void)OSSL_CMP_CTX_set_transfer_cb(ctx, read_write_req_resp);
+
+#ifndef OPENSSL_NO_SOCK
+    if (opt_tls_used) {
+        APP_HTTP_TLS_INFO *info;
+
+        if (opt_tls_cert != NULL
+            || opt_tls_key != NULL || opt_tls_keypass != NULL) {
+            if (opt_tls_key == NULL) {
+                CMP_err("missing -tls_key option");
+                goto err;
+            } else if (opt_tls_cert == NULL) {
+                CMP_err("missing -tls_cert option");
+                goto err;
+            }
+        }
+
+        if ((info = OPENSSL_zalloc(sizeof(*info))) == NULL)
+            goto err;
+        (void)OSSL_CMP_CTX_set_http_cb_arg(ctx, info);
+        info->server = opt_server;
+        info->port = server_port;
+        /* workaround for callback design flaw, see #17088: */
+        info->use_proxy = proxy_host != NULL;
+        info->timeout = OSSL_CMP_CTX_get_option(ctx, OSSL_CMP_OPT_MSG_TIMEOUT);
+        info->ssl_ctx = setup_ssl_ctx(ctx, host, engine);
+
+        if (info->ssl_ctx == NULL)
+            goto err;
+        (void)OSSL_CMP_CTX_set_http_cb(ctx, app_http_tls_cb);
+    }
+#endif
+
+    if (!setup_protection_ctx(ctx, engine))
+        goto err;
+
+    if (!setup_request_ctx(ctx, engine))
+        goto err;
+
+    if (!set_name(opt_recipient, OSSL_CMP_CTX_set1_recipient, ctx, "recipient")
+            || !set_name(opt_expect_sender, OSSL_CMP_CTX_set1_expected_sender,
+                         ctx, "expected sender"))
+        goto err;
+
+    if (opt_geninfo != NULL && !handle_opt_geninfo(ctx))
+        goto err;
+
+    /* not printing earlier, to minimize confusion in case setup fails before */
+    if (opt_rspin != NULL)
+        CMP_info("will not contact any server since -rspin is given");
+    else
+        CMP_info2("will contact %s%s", server_buf, proxy_buf);
+
+    ret = 1;
+
+ err:
+    OPENSSL_free(host);
+    OPENSSL_free(port);
+    OPENSSL_free(path);
+    return ret;
+ oom:
+    CMP_err("out of memory");
+    goto err;
+}
+
+/*
+ * write out the given certificate to the output specified by bio.
+ * Depending on options use either PEM or DER format.
+ * Returns 1 on success, 0 on error
+ */
+static int write_cert(BIO *bio, X509 *cert)
+{
+    if ((opt_certform == FORMAT_PEM && PEM_write_bio_X509(bio, cert))
+            || (opt_certform == FORMAT_ASN1 && i2d_X509_bio(bio, cert)))
+        return 1;
+    if (opt_certform != FORMAT_PEM && opt_certform != FORMAT_ASN1)
+        BIO_printf(bio_err,
+                   "error: unsupported type '%s' for writing certificates\n",
+                   opt_certform_s);
+    return 0;
+}
+
+/*
+ * If destFile != NULL writes out a stack of certs to the given file.
+ * In any case frees the certs.
+ * Depending on options use either PEM or DER format,
+ * where DER does not make much sense for writing more than one cert!
+ * Returns number of written certificates on success, -1 on error.
+ */
+static int save_free_certs(OSSL_CMP_CTX *ctx,
+                           STACK_OF(X509) *certs, char *destFile, char *desc)
+{
+    BIO *bio = NULL;
+    int i;
+    int n = sk_X509_num(certs);
+
+    if (destFile == NULL)
+        goto end;
+    CMP_info3("received %d %s certificate(s), saving to file '%s'",
+              n, desc, destFile);
+    if (n > 1 && opt_certform != FORMAT_PEM)
+        CMP_warn("saving more than one certificate in non-PEM format");
+
+    if (destFile == NULL || (bio = BIO_new(BIO_s_file())) == NULL
+            || !BIO_write_filename(bio, (char *)destFile)) {
+        CMP_err1("could not open file '%s' for writing", destFile);
+        n = -1;
+        goto end;
+    }
+
+    for (i = 0; i < n; i++) {
+        if (!write_cert(bio, sk_X509_value(certs, i))) {
+            CMP_err1("cannot write certificate to file '%s'", destFile);
+            n = -1;
+            goto end;
+        }
+    }
+
+ end:
+    BIO_free(bio);
+    sk_X509_pop_free(certs, X509_free);
+    return n;
+}
+
+static void print_itavs(STACK_OF(OSSL_CMP_ITAV) *itavs)
+{
+    OSSL_CMP_ITAV *itav = NULL;
+    char buf[128];
+    int i, r;
+    int n = sk_OSSL_CMP_ITAV_num(itavs); /* itavs == NULL leads to 0 */
+
+    if (n == 0) {
+        CMP_info("genp contains no ITAV");
+        return;
+    }
+
+    for (i = 0; i < n; i++) {
+        itav = sk_OSSL_CMP_ITAV_value(itavs, i);
+        r = OBJ_obj2txt(buf, 128, OSSL_CMP_ITAV_get0_type(itav), 0);
+        if (r < 0)
+            CMP_err("could not get ITAV details");
+        else if (r == 0)
+            CMP_info("genp contains empty ITAV");
+        else
+            CMP_info1("genp contains ITAV of type: %s", buf);
+    }
+}
+
+static char opt_item[SECTION_NAME_MAX + 1];
+/* get previous name from a comma or space-separated list of names */
+static const char *prev_item(const char *opt, const char *end)
+{
+    const char *beg;
+    size_t len;
+
+    if (end == opt)
+        return NULL;
+    beg = end;
+    while (beg > opt) {
+        --beg;
+        if (beg[0] == ',' || isspace(beg[0])) {
+            ++beg;
+            break;
+        }
+    }
+    len = end - beg;
+    if (len > SECTION_NAME_MAX) {
+        CMP_warn3("using only first %d characters of section name starting with \"%.*s\"",
+                  SECTION_NAME_MAX, SECTION_NAME_MAX, beg);
+        len = SECTION_NAME_MAX;
+    }
+    memcpy(opt_item, beg, len);
+    opt_item[len] = '\0';
+    while (beg > opt) {
+        --beg;
+        if (beg[0] != ',' && !isspace(beg[0])) {
+            ++beg;
+            break;
+        }
+    }
+    return beg;
+}
+
+/* get str value for name from a comma-separated hierarchy of config sections */
+static char *conf_get_string(const CONF *src_conf, const char *groups,
+                             const char *name)
+{
+    char *res = NULL;
+    const char *end = groups + strlen(groups);
+
+    while ((end = prev_item(groups, end)) != NULL) {
+        if ((res = NCONF_get_string(src_conf, opt_item, name)) != NULL)
+            return res;
+    }
+    return res;
+}
+
+/* get long val for name from a comma-separated hierarchy of config sections */
+static int conf_get_number_e(const CONF *conf_, const char *groups,
+                             const char *name, long *result)
+{
+    char *str = conf_get_string(conf_, groups, name);
+    char *tailptr;
+    long res;
+
+    if (str == NULL || *str == '\0')
+        return 0;
+
+    res = strtol(str, &tailptr, 10);
+    if (res == LONG_MIN || res == LONG_MAX || *tailptr != '\0')
+        return 0;
+
+    *result = res;
+    return 1;
+}
+
+/*
+ * use the command line option table to read values from the CMP section
+ * of openssl.cnf.  Defaults are taken from the config file, they can be
+ * overwritten on the command line.
+ */
+static int read_config(void)
+{
+    unsigned int i;
+    long num = 0;
+    char *txt = NULL;
+    const OPTIONS *opt;
+    int start_opt = OPT_VERBOSITY - OPT_HELP;
+    int start_idx = OPT_VERBOSITY - 2;
+    /*
+     * starting with offset OPT_VERBOSITY because OPT_CONFIG and OPT_SECTION
+     * would not make sense within the config file.
+     */
+    int n_options = OSSL_NELEM(cmp_options) - 1;
+
+    for (opt = &cmp_options[start_opt], i = start_idx;
+         opt->name != NULL; i++, opt++)
+        if (!strcmp(opt->name, OPT_SECTION_STR)
+                || !strcmp(opt->name, OPT_MORE_STR))
+            n_options--;
+    OPENSSL_assert(OSSL_NELEM(cmp_vars) == n_options
+                 + OPT_PROV__FIRST + 1 - OPT_PROV__LAST
+                 + OPT_R__FIRST + 1 - OPT_R__LAST
+                 + OPT_V__FIRST + 1 - OPT_V__LAST);
+    for (opt = &cmp_options[start_opt], i = start_idx;
+         opt->name != NULL; i++, opt++) {
+        int provider_option = (OPT_PROV__FIRST <= opt->retval
+                               && opt->retval < OPT_PROV__LAST);
+        int rand_state_option = (OPT_R__FIRST <= opt->retval
+                                 && opt->retval < OPT_R__LAST);
+        int verification_option = (OPT_V__FIRST <= opt->retval
+                                   && opt->retval < OPT_V__LAST);
+
+        if (strcmp(opt->name, OPT_SECTION_STR) == 0
+                || strcmp(opt->name, OPT_MORE_STR) == 0) {
+            i--;
+            continue;
+        }
+        if (provider_option || rand_state_option || verification_option)
+            i--;
+        switch (opt->valtype) {
+        case '-':
+        case 'p':
+        case 'n':
+        case 'N':
+        case 'l':
+            if (!conf_get_number_e(conf, opt_section, opt->name, &num)) {
+                ERR_clear_error();
+                continue; /* option not provided */
+            }
+            if (opt->valtype == 'p' && num <= 0) {
+                opt_printf_stderr("Non-positive number \"%ld\" for config option -%s\n",
+                                  num, opt->name);
+                return -1;
+            }
+            if (opt->valtype == 'N' && num < 0) {
+                opt_printf_stderr("Negative number \"%ld\" for config option -%s\n",
+                                  num, opt->name);
+                return -1;
+            }
+            break;
+        case 's':
+        case '>':
+        case 'M':
+            txt = conf_get_string(conf, opt_section, opt->name);
+            if (txt == NULL) {
+                ERR_clear_error();
+                continue; /* option not provided */
+            }
+            break;
+        default:
+            CMP_err2("internal: unsupported type '%c' for option '%s'",
+                     opt->valtype, opt->name);
+            return 0;
+            break;
+        }
+        if (provider_option || verification_option) {
+            int conf_argc = 1;
+            char *conf_argv[3];
+            char arg1[82];
+
+            BIO_snprintf(arg1, 81, "-%s", (char *)opt->name);
+            conf_argv[0] = prog;
+            conf_argv[1] = arg1;
+            if (opt->valtype == '-') {
+                if (num != 0)
+                    conf_argc = 2;
+            } else {
+                conf_argc = 3;
+                conf_argv[2] = conf_get_string(conf, opt_section, opt->name);
+                /* not NULL */
+            }
+            if (conf_argc > 1) {
+                (void)opt_init(conf_argc, conf_argv, cmp_options);
+
+                if (provider_option
+                    ? !opt_provider(opt_next())
+                    : !opt_verify(opt_next(), vpm)) {
+                    CMP_err2("for option '%s' in config file section '%s'",
+                             opt->name, opt_section);
+                    return 0;
+                }
+            }
+        } else {
+            switch (opt->valtype) {
+            case '-':
+            case 'p':
+            case 'n':
+            case 'N':
+                if (num < INT_MIN || INT_MAX < num) {
+                    BIO_printf(bio_err,
+                               "integer value out of range for option '%s'\n",
+                               opt->name);
+                    return 0;
+                }
+                *cmp_vars[i].num = (int)num;
+                break;
+            case 'l':
+                *cmp_vars[i].num_long = num;
+                break;
+            default:
+                if (txt != NULL && txt[0] == '\0')
+                    txt = NULL; /* reset option on empty string input */
+                *cmp_vars[i].txt = txt;
+                break;
+            }
+        }
+    }
+
+    return 1;
+}
+
+static char *opt_str(void)
+{
+    char *arg = opt_arg();
+
+    if (arg[0] == '\0') {
+        CMP_warn1("%s option argument is empty string, resetting option",
+                  opt_flag());
+        arg = NULL;
+    } else if (arg[0] == '-') {
+        CMP_warn1("%s option argument starts with hyphen", opt_flag());
+    }
+    return arg;
+}
+
+/* returns 1 on success, 0 on error, -1 on -help (i.e., stop with success) */
+static int get_opts(int argc, char **argv)
+{
+    OPTION_CHOICE o;
+
+    prog = opt_init(argc, argv, cmp_options);
+
+    while ((o = opt_next()) != OPT_EOF) {
+        switch (o) {
+        case OPT_EOF:
+        case OPT_ERR:
+ opthelp:
+            BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
+            return 0;
+        case OPT_HELP:
+            opt_help(cmp_options);
+            return -1;
+        case OPT_CONFIG: /* has already been handled */
+        case OPT_SECTION: /* has already been handled */
+            break;
+        case OPT_VERBOSITY:
+            if (!set_verbosity(opt_int_arg()))
+                goto opthelp;
+            break;
+#ifndef OPENSSL_NO_SOCK
+        case OPT_SERVER:
+            opt_server = opt_str();
+            break;
+        case OPT_PROXY:
+            opt_proxy = opt_str();
+            break;
+        case OPT_NO_PROXY:
+            opt_no_proxy = opt_str();
+            break;
+#endif
+        case OPT_RECIPIENT:
+            opt_recipient = opt_str();
+            break;
+        case OPT_PATH:
+            opt_path = opt_str();
+            break;
+        case OPT_KEEP_ALIVE:
+            opt_keep_alive = opt_int_arg();
+            if (opt_keep_alive > 2) {
+                CMP_err("-keep_alive argument must be 0, 1, or 2");
+                goto opthelp;
+            }
+            break;
+        case OPT_MSG_TIMEOUT:
+            opt_msg_timeout = opt_int_arg();
+            break;
+        case OPT_TOTAL_TIMEOUT:
+            opt_total_timeout = opt_int_arg();
+            break;
+#ifndef OPENSSL_NO_SOCK
+        case OPT_TLS_USED:
+            opt_tls_used = 1;
+            break;
+        case OPT_TLS_CERT:
+            opt_tls_cert = opt_str();
+            break;
+        case OPT_TLS_KEY:
+            opt_tls_key = opt_str();
+            break;
+        case OPT_TLS_KEYPASS:
+            opt_tls_keypass = opt_str();
+            break;
+        case OPT_TLS_EXTRA:
+            opt_tls_extra = opt_str();
+            break;
+        case OPT_TLS_TRUSTED:
+            opt_tls_trusted = opt_str();
+            break;
+        case OPT_TLS_HOST:
+            opt_tls_host = opt_str();
+            break;
+#endif
+
+        case OPT_REF:
+            opt_ref = opt_str();
+            break;
+        case OPT_SECRET:
+            opt_secret = opt_str();
+            break;
+        case OPT_CERT:
+            opt_cert = opt_str();
+            break;
+        case OPT_OWN_TRUSTED:
+            opt_own_trusted = opt_str();
+            break;
+        case OPT_KEY:
+            opt_key = opt_str();
+            break;
+        case OPT_KEYPASS:
+            opt_keypass = opt_str();
+            break;
+        case OPT_DIGEST:
+            opt_digest = opt_str();
+            break;
+        case OPT_MAC:
+            opt_mac = opt_str();
+            break;
+        case OPT_EXTRACERTS:
+            opt_extracerts = opt_str();
+            break;
+        case OPT_UNPROTECTED_REQUESTS:
+            opt_unprotected_requests = 1;
+            break;
+
+        case OPT_TRUSTED:
+            opt_trusted = opt_str();
+            break;
+        case OPT_UNTRUSTED:
+            opt_untrusted = opt_str();
+            break;
+        case OPT_SRVCERT:
+            opt_srvcert = opt_str();
+            break;
+        case OPT_EXPECT_SENDER:
+            opt_expect_sender = opt_str();
+            break;
+        case OPT_IGNORE_KEYUSAGE:
+            opt_ignore_keyusage = 1;
+            break;
+        case OPT_UNPROTECTED_ERRORS:
+            opt_unprotected_errors = 1;
+            break;
+        case OPT_EXTRACERTSOUT:
+            opt_extracertsout = opt_str();
+            break;
+        case OPT_CACERTSOUT:
+            opt_cacertsout = opt_str();
+            break;
+
+        case OPT_V_CASES:
+            if (!opt_verify(o, vpm))
+                goto opthelp;
+            break;
+        case OPT_CMD:
+            opt_cmd_s = opt_str();
+            break;
+        case OPT_INFOTYPE:
+            opt_infotype_s = opt_str();
+            break;
+        case OPT_GENINFO:
+            opt_geninfo = opt_str();
+            break;
+
+        case OPT_NEWKEY:
+            opt_newkey = opt_str();
+            break;
+        case OPT_NEWKEYPASS:
+            opt_newkeypass = opt_str();
+            break;
+        case OPT_SUBJECT:
+            opt_subject = opt_str();
+            break;
+        case OPT_ISSUER:
+            opt_issuer = opt_str();
+            break;
+        case OPT_DAYS:
+            opt_days = opt_int_arg();
+            break;
+        case OPT_REQEXTS:
+            opt_reqexts = opt_str();
+            break;
+        case OPT_SANS:
+            opt_sans = opt_str();
+            break;
+        case OPT_SAN_NODEFAULT:
+            opt_san_nodefault = 1;
+            break;
+        case OPT_POLICIES:
+            opt_policies = opt_str();
+            break;
+        case OPT_POLICY_OIDS:
+            opt_policy_oids = opt_str();
+            break;
+        case OPT_POLICY_OIDS_CRITICAL:
+            opt_policy_oids_critical = 1;
+            break;
+        case OPT_POPO:
+            opt_popo = opt_int_arg();
+            if (opt_popo < OSSL_CRMF_POPO_NONE
+                    || opt_popo > OSSL_CRMF_POPO_KEYENC) {
+                CMP_err("invalid popo spec. Valid values are -1 .. 2");
+                goto opthelp;
+            }
+            break;
+        case OPT_CSR:
+            opt_csr = opt_arg();
+            break;
+        case OPT_OUT_TRUSTED:
+            opt_out_trusted = opt_str();
+            break;
+        case OPT_IMPLICIT_CONFIRM:
+            opt_implicit_confirm = 1;
+            break;
+        case OPT_DISABLE_CONFIRM:
+            opt_disable_confirm = 1;
+            break;
+        case OPT_CERTOUT:
+            opt_certout = opt_str();
+            break;
+        case OPT_CHAINOUT:
+            opt_chainout = opt_str();
+            break;
+        case OPT_OLDCERT:
+            opt_oldcert = opt_str();
+            break;
+        case OPT_REVREASON:
+            opt_revreason = opt_int_arg();
+                if (opt_revreason < CRL_REASON_NONE
+                    || opt_revreason > CRL_REASON_AA_COMPROMISE
+                    || opt_revreason == 7) {
+                CMP_err("invalid revreason. Valid values are -1 .. 6, 8 .. 10");
+                goto opthelp;
+            }
+            break;
+        case OPT_CERTFORM:
+            opt_certform_s = opt_str();
+            break;
+        case OPT_KEYFORM:
+            opt_keyform_s = opt_str();
+            break;
+        case OPT_OTHERPASS:
+            opt_otherpass = opt_str();
+            break;
+#ifndef OPENSSL_NO_ENGINE
+        case OPT_ENGINE:
+            opt_engine = opt_str();
+            break;
+#endif
+        case OPT_PROV_CASES:
+            if (!opt_provider(o))
+                goto opthelp;
+            break;
+        case OPT_R_CASES:
+            if (!opt_rand(o))
+                goto opthelp;
+            break;
+
+        case OPT_BATCH:
+            opt_batch = 1;
+            break;
+        case OPT_REPEAT:
+            opt_repeat = opt_int_arg();
+            break;
+        case OPT_REQIN:
+            opt_reqin = opt_str();
+            break;
+        case OPT_REQIN_NEW_TID:
+            opt_reqin_new_tid = 1;
+            break;
+        case OPT_REQOUT:
+            opt_reqout = opt_str();
+            break;
+        case OPT_RSPIN:
+            opt_rspin = opt_str();
+            break;
+        case OPT_RSPOUT:
+            opt_rspout = opt_str();
+            break;
+        case OPT_USE_MOCK_SRV:
+            opt_use_mock_srv = 1;
+            break;
+
+#ifndef OPENSSL_NO_SOCK
+        case OPT_PORT:
+            opt_port = opt_str();
+            break;
+        case OPT_MAX_MSGS:
+            opt_max_msgs = opt_int_arg();
+            break;
+#endif
+        case OPT_SRV_REF:
+            opt_srv_ref = opt_str();
+            break;
+        case OPT_SRV_SECRET:
+            opt_srv_secret = opt_str();
+            break;
+        case OPT_SRV_CERT:
+            opt_srv_cert = opt_str();
+            break;
+        case OPT_SRV_KEY:
+            opt_srv_key = opt_str();
+            break;
+        case OPT_SRV_KEYPASS:
+            opt_srv_keypass = opt_str();
+            break;
+        case OPT_SRV_TRUSTED:
+            opt_srv_trusted = opt_str();
+            break;
+        case OPT_SRV_UNTRUSTED:
+            opt_srv_untrusted = opt_str();
+            break;
+        case OPT_RSP_CERT:
+            opt_rsp_cert = opt_str();
+            break;
+        case OPT_RSP_EXTRACERTS:
+            opt_rsp_extracerts = opt_str();
+            break;
+        case OPT_RSP_CAPUBS:
+            opt_rsp_capubs = opt_str();
+            break;
+        case OPT_POLL_COUNT:
+            opt_poll_count = opt_int_arg();
+            break;
+        case OPT_CHECK_AFTER:
+            opt_check_after = opt_int_arg();
+            break;
+        case OPT_GRANT_IMPLICITCONF:
+            opt_grant_implicitconf = 1;
+            break;
+        case OPT_PKISTATUS:
+            opt_pkistatus = opt_int_arg();
+            break;
+        case OPT_FAILURE:
+            opt_failure = opt_int_arg();
+            break;
+        case OPT_FAILUREBITS:
+            opt_failurebits = opt_int_arg();
+            break;
+        case OPT_STATUSSTRING:
+            opt_statusstring = opt_str();
+            break;
+        case OPT_SEND_ERROR:
+            opt_send_error = 1;
+            break;
+        case OPT_SEND_UNPROTECTED:
+            opt_send_unprotected = 1;
+            break;
+        case OPT_SEND_UNPROT_ERR:
+            opt_send_unprot_err = 1;
+            break;
+        case OPT_ACCEPT_UNPROTECTED:
+            opt_accept_unprotected = 1;
+            break;
+        case OPT_ACCEPT_UNPROT_ERR:
+            opt_accept_unprot_err = 1;
+            break;
+        case OPT_ACCEPT_RAVERIFIED:
+            opt_accept_raverified = 1;
+            break;
+        }
+    }
+
+    /* No extra args. */
+    argc = opt_num_rest();
+    argv = opt_rest();
+    if (argc != 0)
+        goto opthelp;
+    return 1;
+}
+
+#ifndef OPENSSL_NO_SOCK
+static int cmp_server(OSSL_CMP_CTX *srv_cmp_ctx) {
+    BIO *acbio;
+    BIO *cbio = NULL;
+    int keep_alive = 0;
+    int msgs = 0;
+    int retry = 1;
+    int ret = 1;
+
+    if ((acbio = http_server_init_bio(prog, opt_port)) == NULL)
+        return 0;
+    while (opt_max_msgs <= 0 || msgs < opt_max_msgs) {
+        char *path = NULL;
+        OSSL_CMP_MSG *req = NULL;
+        OSSL_CMP_MSG *resp = NULL;
+
+        ret = http_server_get_asn1_req(ASN1_ITEM_rptr(OSSL_CMP_MSG),
+                                       (ASN1_VALUE **)&req, &path,
+                                       &cbio, acbio, &keep_alive,
+                                       prog, opt_port, 0, 0);
+        if (ret == 0) { /* no request yet */
+            if (retry) {
+                ossl_sleep(1000);
+                retry = 0;
+                continue;
+            }
+            ret = 0;
+            goto next;
+        }
+        if (ret++ == -1) /* fatal error */
+            break;
+
+        ret = 0;
+        msgs++;
+        if (req != NULL) {
+            if (strcmp(path, "") != 0 && strcmp(path, "pkix/") != 0) {
+                (void)http_server_send_status(cbio, 404, "Not Found");
+                CMP_err1("expecting empty path or 'pkix/' but got '%s'",
+                         path);
+                OPENSSL_free(path);
+                OSSL_CMP_MSG_free(req);
+                goto next;
+            }
+            OPENSSL_free(path);
+            resp = OSSL_CMP_CTX_server_perform(cmp_ctx, req);
+            OSSL_CMP_MSG_free(req);
+            if (resp == NULL) {
+                (void)http_server_send_status(cbio,
+                                              500, "Internal Server Error");
+                break; /* treated as fatal error */
+            }
+            ret = http_server_send_asn1_resp(cbio, keep_alive,
+                                             "application/pkixcmp",
+                                             ASN1_ITEM_rptr(OSSL_CMP_MSG),
+                                             (const ASN1_VALUE *)resp);
+            OSSL_CMP_MSG_free(resp);
+            if (!ret)
+                break; /* treated as fatal error */
+        }
+    next:
+        if (!ret) { /* on transmission error, cancel CMP transaction */
+            (void)OSSL_CMP_CTX_set1_transactionID(srv_cmp_ctx, NULL);
+            (void)OSSL_CMP_CTX_set1_senderNonce(srv_cmp_ctx, NULL);
+        }
+        if (!ret || !keep_alive
+            || OSSL_CMP_CTX_get_status(srv_cmp_ctx) != OSSL_CMP_PKISTATUS_trans
+            /* transaction closed by OSSL_CMP_CTX_server_perform() */) {
+            BIO_free_all(cbio);
+            cbio = NULL;
+        }
+    }
+
+    BIO_free_all(cbio);
+    BIO_free_all(acbio);
+    return ret;
+}
+#endif
+
+static void print_status(void)
+{
+    /* print PKIStatusInfo */
+    int status = OSSL_CMP_CTX_get_status(cmp_ctx);
+    char *buf = app_malloc(OSSL_CMP_PKISI_BUFLEN, "PKIStatusInfo buf");
+    const char *string =
+        OSSL_CMP_CTX_snprint_PKIStatus(cmp_ctx, buf, OSSL_CMP_PKISI_BUFLEN);
+    const char *from = "", *server = "";
+
+#ifndef OPENSSL_NO_SOCK
+    if (opt_server != NULL) {
+        from = " from ";
+        server = opt_server;
+    }
+#endif
+    CMP_print(bio_err,
+              status == OSSL_CMP_PKISTATUS_accepted
+              ? OSSL_CMP_LOG_INFO :
+              status == OSSL_CMP_PKISTATUS_rejection
+              || status == OSSL_CMP_PKISTATUS_waiting
+              ? OSSL_CMP_LOG_ERR : OSSL_CMP_LOG_WARNING,
+              status == OSSL_CMP_PKISTATUS_accepted ? "info" :
+              status == OSSL_CMP_PKISTATUS_rejection ? "server error" :
+              status == OSSL_CMP_PKISTATUS_waiting ? "internal error"
+              : "warning", "received%s%s %s", from, server,
+              string != NULL ? string : "<unknown PKIStatus>");
+    OPENSSL_free(buf);
+}
+
+int cmp_main(int argc, char **argv)
+{
+    char *configfile = NULL;
+    int i;
+    X509 *newcert = NULL;
+    ENGINE *engine = NULL;
+    OSSL_CMP_CTX *srv_cmp_ctx = NULL;
+    int ret = 0; /* default: failure */
+
+    prog = opt_appname(argv[0]);
+    if (argc <= 1) {
+        opt_help(cmp_options);
+        goto err;
+    }
+
+    /*
+     * handle options -config, -section, and -verbosity upfront
+     * to take effect for other options
+     */
+    for (i = 1; i < argc - 1; i++) {
+        if (*argv[i] == '-') {
+            if (!strcmp(argv[i] + 1, cmp_options[OPT_CONFIG - OPT_HELP].name))
+                opt_config = argv[++i];
+            else if (!strcmp(argv[i] + 1,
+                             cmp_options[OPT_SECTION - OPT_HELP].name))
+                opt_section = argv[++i];
+            else if (strcmp(argv[i] + 1,
+                            cmp_options[OPT_VERBOSITY - OPT_HELP].name) == 0
+                     && !set_verbosity(atoi(argv[++i])))
+                goto err;
+        }
+    }
+    if (opt_section[0] == '\0') /* empty string */
+        opt_section = DEFAULT_SECTION;
+
+    vpm = X509_VERIFY_PARAM_new();
+    if (vpm == NULL) {
+        CMP_err("out of memory");
+        goto err;
+    }
+
+    /* read default values for options from config file */
+    configfile = opt_config != NULL ? opt_config : default_config_file;
+    if (configfile != NULL && configfile[0] != '\0' /* non-empty string */
+            && (configfile != default_config_file || access(configfile, F_OK) != -1)) {
+        CMP_info2("using section(s) '%s' of OpenSSL configuration file '%s'",
+                  opt_section, configfile);
+        conf = app_load_config(configfile);
+        if (conf == NULL) {
+            goto err;
+        } else {
+            if (strcmp(opt_section, CMP_SECTION) == 0) { /* default */
+                if (!NCONF_get_section(conf, opt_section))
+                    CMP_info2("no [%s] section found in config file '%s';"
+                              " will thus use just [default] and unnamed section if present",
+                              opt_section, configfile);
+            } else {
+                const char *end = opt_section + strlen(opt_section);
+                while ((end = prev_item(opt_section, end)) != NULL) {
+                    if (!NCONF_get_section(conf, opt_item)) {
+                        CMP_err2("no [%s] section found in config file '%s'",
+                                 opt_item, configfile);
+                        goto err;
+                    }
+                }
+            }
+            ret = read_config();
+            if (!set_verbosity(opt_verbosity)) /* just for checking range */
+                ret = -1;
+            if (ret <= 0) {
+                if (ret == -1)
+                    BIO_printf(bio_err, "Use -help for summary.\n");
+                goto err;
+            }
+        }
+    }
+    (void)BIO_flush(bio_err); /* prevent interference with opt_help() */
+
+    ret = get_opts(argc, argv);
+    if (ret <= 0)
+        goto err;
+    ret = 0;
+    if (!app_RAND_load())
+        goto err;
+
+    if (opt_batch)
+        set_base_ui_method(UI_null());
+
+    if (opt_engine != NULL) {
+        engine = setup_engine_methods(opt_engine, 0 /* not: ENGINE_METHOD_ALL */, 0);
+        if (engine == NULL) {
+            CMP_err1("cannot load engine %s", opt_engine);
+            goto err;
+        }
+    }
+
+    cmp_ctx = OSSL_CMP_CTX_new(app_get0_libctx(), app_get0_propq());
+    if (cmp_ctx == NULL)
+        goto err;
+    OSSL_CMP_CTX_set_log_verbosity(cmp_ctx, opt_verbosity);
+    if (!OSSL_CMP_CTX_set_log_cb(cmp_ctx, print_to_bio_out)) {
+        CMP_err1("cannot set up error reporting and logging for %s", prog);
+        goto err;
+    }
+
+#ifndef OPENSSL_NO_SOCK
+    if ((opt_tls_cert != NULL || opt_tls_key != NULL
+         || opt_tls_keypass != NULL || opt_tls_extra != NULL
+         || opt_tls_trusted != NULL || opt_tls_host != NULL)
+            && !opt_tls_used)
+        CMP_warn("Ingnoring TLS options(s) since -tls_used is not given");
+    if (opt_port != NULL) {
+        if (opt_tls_used) {
+            CMP_err("-tls_used option not supported with -port option");
+            goto err;
+        }
+        if (opt_use_mock_srv || opt_server != NULL || opt_rspin != NULL) {
+            CMP_err("cannot use -port with -use_mock_srv, -server, or -rspin options");
+            goto err;
+        }
+    }
+    if (opt_server != NULL && opt_use_mock_srv) {
+        CMP_err("cannot use both -server and -use_mock_srv options");
+        goto err;
+    }
+#endif
+    if (opt_rspin != NULL && opt_use_mock_srv) {
+        CMP_err("cannot use both -rspin and -use_mock_srv options");
+        goto err;
+    }
+
+    if (opt_use_mock_srv
+#ifndef OPENSSL_NO_SOCK
+        || opt_port != NULL
+#endif
+        ) {
+        OSSL_CMP_SRV_CTX *srv_ctx;
+
+        if ((srv_ctx = setup_srv_ctx(engine)) == NULL)
+            goto err;
+        srv_cmp_ctx = OSSL_CMP_SRV_CTX_get0_cmp_ctx(srv_ctx);
+        OSSL_CMP_CTX_set_transfer_cb_arg(cmp_ctx, srv_ctx);
+        if (!OSSL_CMP_CTX_set_log_cb(srv_cmp_ctx, print_to_bio_err)) {
+            CMP_err1("cannot set up error reporting and logging for %s", prog);
+            goto err;
+        }
+        OSSL_CMP_CTX_set_log_verbosity(srv_cmp_ctx, opt_verbosity);
+    }
+
+#ifndef OPENSSL_NO_SOCK
+    if (opt_tls_used && (opt_use_mock_srv || opt_rspin != NULL)) {
+        CMP_warn("ignoring -tls_used option since -use_mock_srv or -rspin is given");
+        opt_tls_used = 0;
+    }
+
+    if (opt_port != NULL) { /* act as very basic CMP HTTP server */
+        ret = cmp_server(srv_cmp_ctx);
+        goto err;
+    }
+
+    /* act as CMP client, possibly using internal mock server */
+
+    if (opt_server != NULL) {
+        if (opt_rspin != NULL) {
+            CMP_warn("ignoring -server option since -rspin is given");
+            opt_server = NULL;
+        }
+    }
+#endif
+
+    if (!setup_client_ctx(cmp_ctx, engine)) {
+        CMP_err("cannot set up CMP context");
+        goto err;
+    }
+    for (i = 0; i < opt_repeat; i++) {
+        /* everything is ready, now connect and perform the command! */
+        switch (opt_cmd) {
+        case CMP_IR:
+            newcert = OSSL_CMP_exec_IR_ses(cmp_ctx);
+            if (newcert != NULL)
+                ret = 1;
+            break;
+        case CMP_KUR:
+            newcert = OSSL_CMP_exec_KUR_ses(cmp_ctx);
+            if (newcert != NULL)
+                ret = 1;
+            break;
+        case CMP_CR:
+            newcert = OSSL_CMP_exec_CR_ses(cmp_ctx);
+            if (newcert != NULL)
+                ret = 1;
+            break;
+        case CMP_P10CR:
+            newcert = OSSL_CMP_exec_P10CR_ses(cmp_ctx);
+            if (newcert != NULL)
+                ret = 1;
+            break;
+        case CMP_RR:
+            ret = OSSL_CMP_exec_RR_ses(cmp_ctx);
+            break;
+        case CMP_GENM:
+            {
+                STACK_OF(OSSL_CMP_ITAV) *itavs;
+
+                if (opt_infotype != NID_undef) {
+                    OSSL_CMP_ITAV *itav =
+                        OSSL_CMP_ITAV_create(OBJ_nid2obj(opt_infotype), NULL);
+                    if (itav == NULL)
+                        goto err;
+                    OSSL_CMP_CTX_push0_genm_ITAV(cmp_ctx, itav);
+                }
+
+                if ((itavs = OSSL_CMP_exec_GENM_ses(cmp_ctx)) != NULL) {
+                    print_itavs(itavs);
+                    sk_OSSL_CMP_ITAV_pop_free(itavs, OSSL_CMP_ITAV_free);
+                    ret = 1;
+                }
+                break;
+            }
+        default:
+            break;
+        }
+        if (OSSL_CMP_CTX_get_status(cmp_ctx) < OSSL_CMP_PKISTATUS_accepted)
+            goto err; /* we got no response, maybe even did not send request */
+
+        print_status();
+        if (save_free_certs(cmp_ctx, OSSL_CMP_CTX_get1_extraCertsIn(cmp_ctx),
+                            opt_extracertsout, "extra") < 0)
+            ret = 0;
+        if (!ret)
+            goto err;
+        ret = 0;
+        if (save_free_certs(cmp_ctx, OSSL_CMP_CTX_get1_caPubs(cmp_ctx),
+                            opt_cacertsout, "CA") < 0)
+            goto err;
+        if (newcert != NULL) {
+            STACK_OF(X509) *certs = sk_X509_new_null();
+
+            if (!X509_add_cert(certs, newcert, X509_ADD_FLAG_UP_REF)) {
+                sk_X509_free(certs);
+                goto err;
+            }
+            if (save_free_certs(cmp_ctx, certs, opt_certout, "enrolled") < 0)
+                goto err;
+        }
+        if (save_free_certs(cmp_ctx, OSSL_CMP_CTX_get1_newChain(cmp_ctx),
+                            opt_chainout, "chain") < 0)
+            goto err;
+
+        if (!OSSL_CMP_CTX_reinit(cmp_ctx))
+            goto err;
+    }
+    ret = 1;
+
+ err:
+    /* in case we ended up here on error without proper cleaning */
+    cleanse(opt_keypass);
+    cleanse(opt_newkeypass);
+    cleanse(opt_otherpass);
+#ifndef OPENSSL_NO_SOCK
+    cleanse(opt_tls_keypass);
+#endif
+    cleanse(opt_secret);
+    cleanse(opt_srv_keypass);
+    cleanse(opt_srv_secret);
+
+    if (ret != 1)
+        OSSL_CMP_CTX_print_errors(cmp_ctx);
+
+    if (cmp_ctx != NULL) {
+#ifndef OPENSSL_NO_SOCK
+        APP_HTTP_TLS_INFO *info = OSSL_CMP_CTX_get_http_cb_arg(cmp_ctx);
+
+#endif
+        ossl_cmp_mock_srv_free(OSSL_CMP_CTX_get_transfer_cb_arg(cmp_ctx));
+        X509_STORE_free(OSSL_CMP_CTX_get_certConf_cb_arg(cmp_ctx));
+        /* cannot free info already here, as it may be used indirectly by: */
+        OSSL_CMP_CTX_free(cmp_ctx);
+#ifndef OPENSSL_NO_SOCK
+        APP_HTTP_TLS_INFO_free(info);
+#endif
+    }
+    X509_VERIFY_PARAM_free(vpm);
+    release_engine(engine);
+
+    NCONF_free(conf); /* must not do as long as opt_... variables are used */
+    OSSL_CMP_log_close();
+
+    return ret == 0 ? EXIT_FAILURE : EXIT_SUCCESS; /* ret == -1 for -help */
+}