OSSL_CMP_CTX_new,
OSSL_CMP_CTX_free,
OSSL_CMP_CTX_reinit,
+OSSL_CMP_CTX_get0_libctx, OSSL_CMP_CTX_get0_propq,
OSSL_CMP_CTX_set_option,
OSSL_CMP_CTX_get_option,
OSSL_CMP_CTX_set_log_cb,
OSSL_CMP_CTX_get_transfer_cb_arg,
OSSL_CMP_CTX_set1_srvCert,
OSSL_CMP_CTX_set1_expected_sender,
+OSSL_CMP_CTX_set0_trusted,
OSSL_CMP_CTX_set0_trustedStore,
+OSSL_CMP_CTX_get0_trusted,
OSSL_CMP_CTX_get0_trustedStore,
-OSSL_CMP_CTX_set1_untrusted_certs,
-OSSL_CMP_CTX_get0_untrusted_certs,
+OSSL_CMP_CTX_set1_untrusted,
+OSSL_CMP_CTX_get0_untrusted,
OSSL_CMP_CTX_set1_cert,
OSSL_CMP_CTX_build_cert_chain,
OSSL_CMP_CTX_set1_pkey,
OSSL_CMP_CTX_set1_secretValue,
OSSL_CMP_CTX_set1_recipient,
OSSL_CMP_CTX_push0_geninfo_ITAV,
+OSSL_CMP_CTX_reset_geninfo_ITAVs,
+OSSL_CMP_CTX_get0_geninfo_ITAVs,
OSSL_CMP_CTX_set1_extraCertsOut,
OSSL_CMP_CTX_set0_newPkey,
OSSL_CMP_CTX_get0_newPkey,
OSSL_CMP_CTX_set1_issuer,
+OSSL_CMP_CTX_set1_serialNumber,
OSSL_CMP_CTX_set1_subjectName,
OSSL_CMP_CTX_push1_subjectAltName,
OSSL_CMP_CTX_set0_reqExtensions,
OSSL_CMP_CTX_set1_p10CSR,
OSSL_CMP_CTX_push0_genm_ITAV,
OSSL_CMP_certConf_cb_t,
+OSSL_CMP_certConf_cb,
OSSL_CMP_CTX_set_certConf_cb,
OSSL_CMP_CTX_set_certConf_cb_arg,
OSSL_CMP_CTX_get_certConf_cb_arg,
OSSL_CMP_CTX_get_status,
OSSL_CMP_CTX_get0_statusString,
OSSL_CMP_CTX_get_failInfoCode,
+OSSL_CMP_CTX_get0_validatedSrvCert,
OSSL_CMP_CTX_get0_newCert,
OSSL_CMP_CTX_get1_newChain,
OSSL_CMP_CTX_get1_caPubs,
#include <openssl/cmp.h>
- OSSL_CMP_CTX *OSSL_CMP_CTX_new(OPENSSL_CTX *libctx, const char *propq);
+ OSSL_CMP_CTX *OSSL_CMP_CTX_new(OSSL_LIB_CTX *libctx, const char *propq);
void OSSL_CMP_CTX_free(OSSL_CMP_CTX *ctx);
int OSSL_CMP_CTX_reinit(OSSL_CMP_CTX *ctx);
+ OSSL_LIB_CTX *OSSL_CMP_CTX_get0_libctx(const OSSL_CMP_CTX *ctx);
+ const char *OSSL_CMP_CTX_get0_propq(const OSSL_CMP_CTX *ctx);
int OSSL_CMP_CTX_set_option(OSSL_CMP_CTX *ctx, int opt, int val);
int OSSL_CMP_CTX_get_option(const OSSL_CMP_CTX *ctx, int opt);
int OSSL_CMP_CTX_set1_srvCert(OSSL_CMP_CTX *ctx, X509 *cert);
int OSSL_CMP_CTX_set1_expected_sender(OSSL_CMP_CTX *ctx,
const X509_NAME *name);
+ #define OSSL_CMP_CTX_set0_trusted OSSL_CMP_CTX_set0_trustedStore
int OSSL_CMP_CTX_set0_trustedStore(OSSL_CMP_CTX *ctx, X509_STORE *store);
+ #define OSSL_CMP_CTX_get0_trusted OSSL_CMP_CTX_get0_trustedStore
X509_STORE *OSSL_CMP_CTX_get0_trustedStore(const OSSL_CMP_CTX *ctx);
- int OSSL_CMP_CTX_set1_untrusted_certs(OSSL_CMP_CTX *ctx,
- STACK_OF(X509) *certs);
- STACK_OF(X509) *OSSL_CMP_CTX_get0_untrusted_certs(const OSSL_CMP_CTX *ctx);
+ int OSSL_CMP_CTX_set1_untrusted(OSSL_CMP_CTX *ctx, STACK_OF(X509) *certs);
+ STACK_OF(X509) *OSSL_CMP_CTX_get0_untrusted(const OSSL_CMP_CTX *ctx);
/* client authentication: */
int OSSL_CMP_CTX_set1_cert(OSSL_CMP_CTX *ctx, X509 *cert);
int OSSL_CMP_CTX_set1_pkey(OSSL_CMP_CTX *ctx, EVP_PKEY *pkey);
int OSSL_CMP_CTX_set1_referenceValue(OSSL_CMP_CTX *ctx,
const unsigned char *ref, int len);
- int OSSL_CMP_CTX_set1_secretValue(OSSL_CMP_CTX *ctx, const unsigned char *sec,
- const int len);
+ int OSSL_CMP_CTX_set1_secretValue(OSSL_CMP_CTX *ctx,
+ const unsigned char *sec, int len);
/* CMP message header and extra certificates: */
int OSSL_CMP_CTX_set1_recipient(OSSL_CMP_CTX *ctx, const X509_NAME *name);
int OSSL_CMP_CTX_push0_geninfo_ITAV(OSSL_CMP_CTX *ctx, OSSL_CMP_ITAV *itav);
+ int OSSL_CMP_CTX_reset_geninfo_ITAVs(OSSL_CMP_CTX *ctx);
+ STACK_OF(OSSL_CMP_ITAV)
+ *OSSL_CMP_CTX_get0_geninfo_ITAVs(const OSSL_CMP_CTX *ctx);
int OSSL_CMP_CTX_set1_extraCertsOut(OSSL_CMP_CTX *ctx,
STACK_OF(X509) *extraCertsOut);
int OSSL_CMP_CTX_set0_newPkey(OSSL_CMP_CTX *ctx, int priv, EVP_PKEY *pkey);
EVP_PKEY *OSSL_CMP_CTX_get0_newPkey(const OSSL_CMP_CTX *ctx, int priv);
int OSSL_CMP_CTX_set1_issuer(OSSL_CMP_CTX *ctx, const X509_NAME *name);
+ int OSSL_CMP_CTX_set1_serialNumber(OSSL_CMP_CTX *ctx, const ASN1_INTEGER *sn);
int OSSL_CMP_CTX_set1_subjectName(OSSL_CMP_CTX *ctx, const X509_NAME *name);
int OSSL_CMP_CTX_push1_subjectAltName(OSSL_CMP_CTX *ctx,
const GENERAL_NAME *name);
/* certificate confirmation: */
typedef int (*OSSL_CMP_certConf_cb_t)(OSSL_CMP_CTX *ctx, X509 *cert,
int fail_info, const char **txt);
+ int OSSL_CMP_certConf_cb(OSSL_CMP_CTX *ctx, X509 *cert, int fail_info,
+ const char **text);
int OSSL_CMP_CTX_set_certConf_cb(OSSL_CMP_CTX *ctx, OSSL_CMP_certConf_cb_t cb);
int OSSL_CMP_CTX_set_certConf_cb_arg(OSSL_CMP_CTX *ctx, void *arg);
void *OSSL_CMP_CTX_get_certConf_cb_arg(const OSSL_CMP_CTX *ctx);
OSSL_CMP_PKIFREETEXT *OSSL_CMP_CTX_get0_statusString(const OSSL_CMP_CTX *ctx);
int OSSL_CMP_CTX_get_failInfoCode(const OSSL_CMP_CTX *ctx);
+ X509 *OSSL_CMP_CTX_get0_validatedSrvCert(const OSSL_CMP_CTX *ctx);
X509 *OSSL_CMP_CTX_get0_newCert(const OSSL_CMP_CTX *ctx);
STACK_OF(X509) *OSSL_CMP_CTX_get1_newChain(const OSSL_CMP_CTX *ctx);
STACK_OF(X509) *OSSL_CMP_CTX_get1_caPubs(const OSSL_CMP_CTX *ctx);
OSSL_CMP_CTX_free() deallocates an OSSL_CMP_CTX structure.
-OSSL_CMP_CTX_reinit() prepares the given B<ctx> for a further transaction by
+OSSL_CMP_CTX_reinit() prepares the given I<ctx> for a further transaction by
clearing the internal CMP transaction (aka session) status, PKIStatusInfo,
and any previous results (newCert, newChain, caPubs, and extraCertsIn)
from the last executed transaction.
-All other field values (i.e., CMP options) are retained for potential re-use.
+It also clears any ITAVs that were added by OSSL_CMP_CTX_push0_genm_ITAV().
+All other field values (i.e., CMP options) are retained for potential reuse.
+
+OSSL_CMP_CTX_get0_libctx() returns the I<libctx> argument that was used
+when constructing I<ctx> with OSSL_CMP_CTX_new(), which may be NULL.
+
+OSSL_CMP_CTX_get0_propq() returns the I<propq> argument that was used
+when constructing I<ctx> with OSSL_CMP_CTX_new(), which may be NULL.
OSSL_CMP_CTX_set_option() sets the given value for the given option
(e.g., OSSL_CMP_OPT_IMPLICIT_CONFIRM) in the given OSSL_CMP_CTX structure.
due to errors, warnings, general info, debugging, etc.
Default is OSSL_CMP_LOG_INFO. See also L<OSSL_CMP_log_open(3)>.
+=item B<OSSL_CMP_OPT_KEEP_ALIVE>
+
+ If the given value is 0 then HTTP connections are not kept open
+ after receiving a response, which is the default behavior for HTTP 1.0.
+ If the value is 1 or 2 then persistent connections are requested.
+ If the value is 2 then persistent connections are required,
+ i.e., in case the server does not grant them an error occurs.
+ The default value is 1: prefer to keep the connection open.
+
=item B<OSSL_CMP_OPT_MSG_TIMEOUT>
- Number of seconds (or 0 for infinite) a CMP message round trip is
- allowed to take before a timeout error is returned. Default is 120.
+ Number of seconds a CMP request-response message round trip
+ is allowed to take before a timeout error is returned.
+ A value <= 0 means no limitation (waiting indefinitely).
+ Default is to use the B<OSSL_CMP_OPT_TOTAL_TIMEOUT> setting.
=item B<OSSL_CMP_OPT_TOTAL_TIMEOUT>
- Maximum total number of seconds an enrollment (including polling)
- may take. Default is 0 (infinite).
+ Maximum total number of seconds a transaction may take,
+ including polling etc.
+ A value <= 0 means no limitation (waiting indefinitely).
+ Default is 0.
+
+=item B<OSSL_CMP_OPT_USE_TLS>
+
+ Use this option to indicate to the HTTP implementation
+ whether TLS is going to be used for the connection (resulting in HTTPS).
+ The value 1 indicates that TLS is used for client-side HTTP connections,
+ which needs to be implemented via a callback function set by
+ OSSL_CMP_CTX_set_http_cb().
+ The value 0 indicates that TLS is not used.
+ Default is -1 for backward compatibility: TLS is used by the client side
+ if and only if OSSL_CMP_CTX_set_http_cb_arg() sets a non-NULL I<arg>.
=item B<OSSL_CMP_OPT_VALIDITY_DAYS>
("indirect method")
Note that a signature-based POPO can only be produced if a private key
- is provided as the newPkey or client pkey component of the CMP context.
+ is provided as the newPkey or client's pkey component of the CMP context.
=item B<OSSL_CMP_OPT_DIGEST_ALGNID>
=item B<OSSL_CMP_OPT_OWF_ALGNID>
The NID of the digest algorithm to be used as one-way function (OWF)
- in RFC 4210's MSG_MAC_ALG for PBM-based message protection.
+ for MAC-based message protection with password-based MAC (PBM).
+ See RFC 4210 section 5.1.3.1 for details.
Default is SHA256.
=item B<OSSL_CMP_OPT_MAC_ALGNID>
- The NID of the MAC algorithm to be used in RFC 4210's MSG_MAC_ALG
- for PBM-based message protection.
+ The NID of the MAC algorithm to be used for message protection with PBM.
Default is HMAC-SHA1 as per RFC 4210.
=item B<OSSL_CMP_OPT_REVOCATION_REASON>
=item B<OSSL_CMP_OPT_UNPROTECTED_SEND>
- Send messages without CMP-level protection.
+ Send request or response messages without CMP-level protection.
=item B<OSSL_CMP_OPT_UNPROTECTED_ERRORS>
=item B<OSSL_CMP_OPT_IGNORE_KEYUSAGE>
- Ignore key usage restrictions in signer certificate when
+ Ignore key usage restrictions in the signer's certificate when
validating signature-based protection in received CMP messages.
Else, 'digitalSignature' must be allowed by CMP signer certificates.
Allow retrieving a trust anchor from extraCerts and using that
to validate the certificate chain of an IP message.
+=item B<OSSL_CMP_OPT_NO_CACHE_EXTRACERTS>
+
+ Do not cache certificates received in the extraCerts CMP message field.
+ Otherwise they are stored to potentially help validate further messages.
+
=back
OSSL_CMP_CTX_get_option() reads the current value of the given option
(e.g., OSSL_CMP_OPT_IMPLICIT_CONFIRM) from the given OSSL_CMP_CTX structure.
-OSSL_CMP_CTX_set_log_cb() sets in B<ctx> the callback function C<cb>
+OSSL_CMP_CTX_set_log_cb() sets in I<ctx> the callback function I<cb>
for handling error queue entries and logging messages.
-When C<cb> is NULL errors are printed to STDERR (if available, else ignored)
+When I<cb> is NULL errors are printed to STDERR (if available, else ignored)
any log messages are ignored.
Alternatively, L<OSSL_CMP_log_open(3)> may be used to direct logging to STDOUT.
OSSL_CMP_CTX_set_log_verbosity() is a macro setting the
OSSL_CMP_OPT_LOG_VERBOSITY context option to the given level.
-OSSL_CMP_CTX_print_errors() outputs any entries in the OpenSSL error queue.
-It is similar to B<ERR_print_errors_cb()> but uses the CMP log callback function
-if set in the C<ctx> for uniformity with CMP logging if given. Otherwise it uses
-B<ERR_print_errors(3)> to print to STDERR (unless OPENSSL_NO_STDIO is defined).
+OSSL_CMP_CTX_print_errors() outputs any entries in the OpenSSL error queue. It
+is similar to L<ERR_print_errors_cb(3)> but uses the CMP log callback function
+if set in the I<ctx> for uniformity with CMP logging if given. Otherwise it uses
+L<ERR_print_errors(3)> to print to STDERR (unless OPENSSL_NO_STDIO is defined).
OSSL_CMP_CTX_set1_serverPath() sets the HTTP path of the CMP server on the host,
also known as "CMP alias".
-The default is I</>.
+The default is C</>.
-OSSL_CMP_CTX_set1_server() sets the given server
B<address>
-(which may be a hostname or IP address or NULL) in the given B<ctx>.
+OSSL_CMP_CTX_set1_server() sets the given server
I<address>
+(which may be a hostname or IP address or NULL) in the given I<ctx>.
OSSL_CMP_CTX_set_serverPort() sets the port of the CMP server to connect to.
-If not used or the
B<port> argument is 0
+If not used or the
I<port> argument is 0
the default port applies, which is 80 for HTTP and 443 for HTTPS.
OSSL_CMP_CTX_set1_proxy() sets the HTTP proxy to be used for connecting to
the given CMP server unless overruled by any "no_proxy" settings (see below).
If TLS is not used this defaults to the value of
-the environment variable B<http_proxy> if set, else B<HTTP_PROXY>.
-Otherwise defaults to the value of B<https_proxy> if set, else B<HTTPS_PROXY>.
+the environment variable C<http_proxy> if set, else C<HTTP_PROXY>.
+Otherwise defaults to the value of C<https_proxy> if set, else C<HTTPS_PROXY>.
An empty proxy string specifies not to use a proxy.
-Else the format is I<[http[s]://]address[:port][/path]>,
+Else the format is C<[http[s]://]address[:port][/path]>,
where any path given is ignored.
-The default port number is 80, or 443 in case I<https:> is given.
+The default port number is 80, or 443 in case C<https:> is given.
OSSL_CMP_CTX_set1_no_proxy() sets the list of server hostnames not to use
an HTTP proxy for. The names may be separated by commas and/or whitespace.
-Defaults to the environment variable B<no_proxy> if set, else B<NO_PROXY>.
+Defaults to the environment variable C<no_proxy> if set, else C<NO_PROXY>.
OSSL_CMP_CTX_set_http_cb() sets the optional BIO connect/disconnect callback
function, which has the prototype
- typedef BIO *(*HTTP_bio_cb_t) (BIO *bio, void *ctx, int connect, int detail);
-
-The callback may modify the BIO B<bio> provided by OSSL_CMP_MSG_http_perform(),
-whereby it may make use of a custom defined argument B<ctx>
-stored in the OSSL_CMP_CTX by means of OSSL_CMP_CTX_set_http_cb_arg().
-During connection establishment, just after calling BIO_do_connect_retry(),
-the function is invoked with the B<connect> argument being 1 and the B<detail>
-argument being 1 if HTTPS is requested, i.e., SSL/TLS should be enabled. On
-disconnect B<connect> is 0 and B<detail> is 1 in case no error occurred, else 0.
-For instance, on connect the function may prepend a TLS BIO to implement HTTPS;
-after disconnect it may do some diagnostic output and/or specific cleanup.
-The function should return NULL to indicate failure.
-After disconnect the modified BIO will be deallocated using BIO_free_all().
-
-OSSL_CMP_CTX_set_http_cb_arg() sets an argument, respectively a pointer to
-a structure containing arguments,
+ typedef BIO *(*HTTP_bio_cb_t) (BIO *bio, void *arg, int connect, int detail);
+
+The callback may modify the I<bio> provided by L<OSSL_CMP_MSG_http_perform(3)>
+as described for the I<bio_update_fn> parameter of L<OSSL_HTTP_open(3)>.
+The callback may make use of a custom defined argument I<arg>,
+as described for the I<arg> parameter of L<OSSL_HTTP_open(3)>.
+The argument is stored in the OSSL_CMP_CTX using OSSL_CMP_CTX_set_http_cb_arg().
+See also the B<OSSL_CMP_OPT_USE_TLS> option described above.
+
+OSSL_CMP_CTX_set_http_cb_arg() sets the argument, respectively a pointer to
+a structure containing arguments such as an B<SSL_CTX> structure,
optionally to be used by the http connect/disconnect callback function.
-
B<arg> is not consumed, and it must therefore explicitly be freed when not
-needed any more.
B<arg> may be NULL to clear the entry.
+
I<arg> is not consumed, and it must therefore explicitly be freed when not
+needed any more.
I<arg> may be NULL to clear the entry.
OSSL_CMP_CTX_get_http_cb_arg() gets the argument, respectively the pointer to a
structure containing arguments, previously set by
typedef OSSL_CMP_MSG *(*OSSL_CMP_transfer_cb_t) (OSSL_CMP_CTX *ctx,
const OSSL_CMP_MSG *req);
-Returns 1 on success, 0 on error.
-
Default is NULL, which implies the use of L<OSSL_CMP_MSG_http_perform(3)>.
-The callback should send the CMP request message it obtains via the B<req>
+The callback should send the CMP request message it obtains via the I<req>
parameter and on success return the response, else it must return NULL.
The transfer callback may make use of a custom defined argument stored in
the ctx by means of OSSL_CMP_CTX_set_transfer_cb_arg(), which may be retrieved
OSSL_CMP_CTX_set_transfer_cb_arg() sets an argument, respectively a pointer to a
structure containing arguments, optionally to be used by the transfer callback.
-
B<arg> is not consumed, and it must therefore explicitly be freed when not
-needed any more.
B<arg> may be NULL to clear the entry.
+
I<arg> is not consumed, and it must therefore explicitly be freed when not
+needed any more.
I<arg> may be NULL to clear the entry.
OSSL_CMP_CTX_get_transfer_cb_arg() gets the argument, respectively the pointer
to a structure containing arguments, previously set by
OSSL_CMP_CTX_set_transfer_cb_arg() or NULL if unset.
-OSSL_CMP_CTX_set1_srvCert() sets the expected server cert B<srvCert> and trusts
+OSSL_CMP_CTX_set1_srvCert() sets the expected server cert in I<ctx> and trusts
it directly (even if it is expired) when verifying signed response messages.
-May be used alternatively to OSSL_CMP_CTX_set0_trustedStore()
-to pin the accepted server.
+This pins the accepted CMP server
+and results in ignoring whatever may be set using OSSL_CMP_CTX_set0_trusted().
Any previously set value is freed.
-The B<cert> argument may be NULL to clear the entry.
+The I<cert> argument may be NULL to clear the entry.
If set, the subject of the certificate is also used
as default value for the recipient of CMP requests
and as default value for the expected sender of CMP responses.
OSSL_CMP_CTX_set1_expected_sender() sets the Distinguished Name (DN)
-expected in the sender field of CMP response messages.
-Defaults to the subject of the pinned server certificate B<-srvcert>, if any.
+expected in the sender field of incoming CMP messages.
+Defaults to the subject of the pinned server certificate, if any.
This can be used to make sure that only a particular entity is accepted as
CMP message signer, and attackers are not able to use arbitrary certificates
of a trusted PKI hierarchy to fraudulently pose as CMP server.
which pins the server to the holder of a particular certificate, while the
expected sender name will continue to match after updates of the server cert.
-OSSL_CMP_CTX_set0_trustedStore() sets the certificate store of type X509_STORE
-containing trusted (root) CA certificates.
-The store may also hold CRLs and
-a certificate verification callback function used for CMP server authentication.
+OSSL_CMP_CTX_set0_trusted() is an alias of the original
+OSSL_CMP_CTX_set0_trustedStore().
+It sets in the CMP context I<ctx> the certificate store of type X509_STORE
+containing trusted certificates, typically of root CAs.
+This is ignored when a certificate is pinned using OSSL_CMP_CTX_set1_srvCert().
+The store may also hold CRLs and a certificate verification callback function
+used for signature-based peer authentication.
Any store entry already set before is freed.
When given a NULL parameter the entry is cleared.
-OSSL_CMP_CTX_get0_trustedStore() returns a pointer to the currently set
-certificate store containing trusted cert etc., or an empty store if unset.
+OSSL_CMP_CTX_get0_trusted() is an alias of the original
+OSSL_CMP_CTX_get0_trustedStore().
+It extracts from the CMP context I<ctx> the pointer to the currently set
+certificate store containing trust anchors etc., or an empty store if unset.
-OSSL_CMP_CTX_set1_untrusted_certs() sets up a list of non-trusted certificates
-of intermediate CAs that may be useful for path construction for the CMP client
-certificate, for the TLS client certificate (if any), when verifying
-the CMP server certificate, and when verifying newly enrolled certificates.
+OSSL_CMP_CTX_set1_untrusted() sets up a list of non-trusted certificates
+of intermediate CAs that may be useful for path construction for the own CMP
+signer certificate, for the own TLS certificate (if any), when verifying peer
+CMP protection certificates, and when verifying newly enrolled certificates.
The reference counts of those certificates handled successfully are increased.
+This list of untrusted certificates in I<ctx> will get augmented by extraCerts
+in received CMP messages unless B<OSSL_CMP_OPT_NO_CACHE_EXTRACERTS> is set.
-OSSL_CMP_CTX_get0_untrusted_certs(OSSL_CMP_CTX *ctx) returns a pointer to the
-list of untrusted certs, which may be empty if unset.
+OSSL_CMP_CTX_get0_untrusted() returns a pointer to the
+list of untrusted certs in I<ctx>, which may be empty if unset.
-OSSL_CMP_CTX_set1_cert() sets the certificate used for CMP message protection.
-The public key of this B<cert> must correspond to
-the private key set via B<OSSL_CMP_CTX_set1_pkey()>.
+OSSL_CMP_CTX_set1_cert() sets the CMP I<signer certificate>,
+also called I<protection certificate>,
+related to the private key used for signature-based CMP message protection.
+Therefore the public key of this I<cert> must correspond to
+the private key set before or thereafter via OSSL_CMP_CTX_set1_pkey().
When using signature-based protection of CMP request messages
-this "protection certificate" will be included first in the extraCerts field.
-The subject of this B<cert> will be used as the sender field of outgoing
-messages, while the subject of any cert set via B<OSSL_CMP_CTX_set1_oldCert()>
-and any value set via B<OSSL_CMP_CTX_set1_subjectName()> are used as fallback.
-The B<cert> argument may be NULL to clear the entry.
+this CMP signer certificate will be included first in the extraCerts field.
+It serves as fallback reference certificate, see OSSL_CMP_CTX_set1_oldCert().
+The subject of this I<cert> will be used as the sender field of outgoing
+messages, while the subject of any cert set via OSSL_CMP_CTX_set1_oldCert(),
+the subject of any PKCS#10 CSR set via OSSL_CMP_CTX_set1_p10CSR(),
+and any value set via OSSL_CMP_CTX_set1_subjectName() are used as fallback.
+
+The I<cert> argument may be NULL to clear the entry.
OSSL_CMP_CTX_build_cert_chain() builds a certificate chain for the CMP signer
-certificate previously set in the B<ctx>. It adds the optional B<candidates>,
+certificate previously set in the I<ctx>. It adds the optional I<candidates>,
a list of intermediate CA certs that may already constitute the targeted chain,
-to the untrusted certs that may already exist in the B<ctx>.
-Then the function uses this augumented set of certs for chain construction.
+to the untrusted certs that may already exist in the I<ctx>.
+Then the function uses this augmented set of certs for chain construction.
If I<own_trusted> is NULL it builds the chain as far down as possible and
ignores any verification errors. Else the CMP signer certificate must be
verifiable where the chain reaches a trust anchor contained in I<own_trusted>.
-On success the function stores the resulting chain in B<ctx>
+On success the function stores the resulting chain in I<ctx>
for inclusion in the extraCerts field of signature-protected messages.
Calling this function is optional; by default a chain construction
is performed on demand that is equivalent to calling this function
-with the B<candidates> and I<own_trusted> arguments being NULL.
+with the I<candidates> and I<own_trusted> arguments being NULL.
-OSSL_CMP_CTX_set1_pkey() sets the private key corresponding to the
-protection certificate B<cert> set via B<OSSL_CMP_CTX_set1_cert()>.
+OSSL_CMP_CTX_set1_pkey() sets the client's private key corresponding to the
+CMP signer certificate set via OSSL_CMP_CTX_set1_cert().
This key is used create signature-based protection (protectionAlg = MSG_SIG_ALG)
of outgoing messages
-unless a PBM secret has been set via B<OSSL_CMP_CTX_set1_secretValue()>.
-The
B<pkey> argument may be NULL to clear the entry.
-
-OSSL_CMP_CTX_set1_secretValue() sets the byte string B<sec> with length B<len>
-as PBM secret in the given B<ctx> or clears it if the B<sec> argument is NULL.
-If present, this secret is used to create PBM-based protection of outgoing
-messages and to verify any PBM-based protection of incoming messages
-(protectionAlg = MSG_MAC_ALG). PBM stands for Password-Based MAC.
-PBM-based protection takes precedence over signature-based protection.
-
-OSSL_CMP_CTX_set1_referenceValue() sets the given referenceValue B<ref> with
-length B<len> in the given B<ctx> or clears it if the B<ref> argument is NULL.
+unless a symmetric secret has been set via OSSL_CMP_CTX_set1_secretValue().
+The
I<pkey> argument may be NULL to clear the entry.
+
+OSSL_CMP_CTX_set1_secretValue() sets in I<ctx> the byte string I<sec> of length
+I<len> to use as pre-shared secret, or clears it if the I<sec> argument is NULL.
+If present, this secret is used to create MAC-based authentication and integrity
+protection (rather than applying signature-based protection)
+of outgoing messages and to verify authenticity and integrity of incoming
+messages that have MAC-based protection (protectionAlg = C<MSG_MAC_ALG>).
+
+OSSL_CMP_CTX_set1_referenceValue() sets the given referenceValue I<ref> with
+length I<len> in the given I<ctx> or clears it if the I<ref> argument is NULL.
According to RFC 4210 section 5.1.1, if no value for the sender field in
-CMP message headers can be determined (i.e., no protection certificate B<cert>
-and no B<subjectName> is given) then the sender field will contain the NULL-DN
+CMP message headers can be determined (i.e., no CMP signer certificate
+and no subject DN is set via OSSL_CMP_CTX_set1_subjectName()
+then the sender field will contain the NULL-DN
and the senderKID field of the CMP message header must be set.
When signature-based protection is used the senderKID will be set to
-the subjectKeyIdentifier of the protection B<cert> as far as present.
-If not present or when PBM-based protection is used
-the B<ref> value is taken as the fallback value for the senderKID.
+the subjectKeyIdentifier of the CMP signer certificate as far as present.
+If not present or when MAC-based protection is used
+the I<ref> value is taken as the fallback value for the senderKID.
OSSL_CMP_CTX_set1_recipient() sets the recipient name that will be used in the
PKIHeader of CMP request messages, i.e. the X509 name of the (CA) server.
the subject of the CMP server certificate set using OSSL_CMP_CTX_set1_srvCert(),
the value set using OSSL_CMP_CTX_set1_issuer(),
the issuer of the certificate set using OSSL_CMP_CTX_set1_oldCert(),
-the issuer of the protection certificate (B<cert>),
+the issuer of the CMP signer certificate,
as far as any of those is present, else the NULL-DN as last resort.
-OSSL_CMP_CTX_push0_geninfo_ITAV() adds B<itav> to the stack in the B<ctx> to be
-added to the GeneralInfo field of the CMP PKIMessage header of a request
+OSSL_CMP_CTX_push0_geninfo_ITAV() adds I<itav> to the stack in the I<ctx> to be
+added to the generalInfo field of the CMP PKIMessage header of a request
message sent with this context.
+OSSL_CMP_CTX_reset_geninfo_ITAVs()
+clears any ITAVs that were added by OSSL_CMP_CTX_push0_geninfo_ITAV().
+
+OSSL_CMP_CTX_get0_geninfo_ITAVs() returns the list of ITAVs set in I<ctx>
+for inclusion in the generalInfo field of the CMP PKIMessage header of requests
+or NULL if not set.
+
OSSL_CMP_CTX_set1_extraCertsOut() sets the stack of extraCerts that will be
sent to remote.
OSSL_CMP_CTX_set0_newPkey() can be used to explicitly set the given EVP_PKEY
structure as the private or public key to be certified in the CMP context.
-The
B<priv> parameter must be 0 if and only if the given key is a public key.
+The
I<priv> parameter must be 0 if and only if the given key is a public key.
OSSL_CMP_CTX_get0_newPkey() gives the key to use for certificate enrollment
dependent on fields of the CMP context structure:
the newPkey (which may be a private or public key) if present,
-else the public key in the p10CSR if present, else the client private key.
-If the
B<priv> parameter is not 0 and the selected key does not have a
+else the public key in the p10CSR if present, else the client's private key.
+If the
I<priv> parameter is not 0 and the selected key does not have a
private component then NULL is returned.
OSSL_CMP_CTX_set1_issuer() sets the name of the intended issuer that
will be set in the CertTemplate, i.e., the X509 name of the CA server.
+OSSL_CMP_CTX_set1_serialNumber() sets the serial number optionally used to
+select the certificate to be revoked in Revocation Requests (RR).
+
OSSL_CMP_CTX_set1_subjectName() sets the subject DN that will be used in
the CertTemplate structure when requesting a new cert. For Key Update Requests
-(KUR), it defaults to the subject DN of the B<reference certificate>,
-see B<OSSL_CMP_CTX_set1_oldCert()>. This default is used for Initialization
+(KUR), it defaults to the subject DN of the reference certificate,
+see OSSL_CMP_CTX_set1_oldCert(). This default is used for Initialization
Requests (IR) and Certification Requests (CR) only if no SANs are set.
-The B<subjectName> is also used as fallback for the sender field
-of outgoing CMP messages if no B<cert> and no B<oldcert> are available.
+The I<subjectName> is also used as fallback for the sender field
+of outgoing CMP messages if no reference certificate is available.
OSSL_CMP_CTX_push1_subjectAltName() adds the given X509 name to the list of
alternate names on the certificate template request. This cannot be used if
any Subject Alternative Name extension is set via
OSSL_CMP_CTX_set0_reqExtensions().
-By default, unless OSSL_CMP_OPT_SUBJECTALTNAME_NODEFAULT has been set,
-the Subject Alternative Names are copied from the B<reference certificate>,
-see B<OSSL_CMP_CTX_set1_oldCert()>.
-If set and the subject DN is not set with OSSL_CMP_CTX_set1_subjectName(), then
+By default, unless B<OSSL_CMP_OPT_SUBJECTALTNAME_NODEFAULT> has been set,
+the Subject Alternative Names are copied from the reference certificate,
+see OSSL_CMP_CTX_set1_oldCert().
+If set and the subject DN is not set with OSSL_CMP_CTX_set1_subjectName() then
the certificate template of an IR and CR will not be filled with the default
-subject DN from the B<reference certificate>.
+subject DN from the reference certificate.
If a subject DN is desired it needs to be set explicitly with
OSSL_CMP_CTX_set1_subjectName().
OSSL_CMP_CTX_set1_oldCert() sets the old certificate to be updated in
Key Update Requests (KUR) or to be revoked in Revocation Requests (RR).
-It must be given for RR, else it defaults to the protection B<cert>.
-The B<reference certificate> determined in this way, if any, is also used for
-deriving default subject DN and Subject Alternative Names for IR, CR, and KUR.
-Its subject is used as sender in CMP message headers if no protection cert is given.
+For RR, this is ignored if an issuer name and a serial number are provided using
+OSSL_CMP_CTX_set1_issuer() and OSSL_CMP_CTX_set1_serialNumber(), respectively.
+For IR/CR/KUR this sets the I<reference certificate>,
+which otherwise defaults to the CMP signer certificate.
+The I<reference certificate> determined this way, if any, is used for providing
+default public key, subject DN, Subject Alternative Names, and issuer DN entries
+in the requested certificate template of IR/CR/KUR messages.
+
+The subject of the reference certificate is used as the sender field value
+in CMP message headers.
Its issuer is used as default recipient in CMP message headers.
-OSSL_CMP_CTX_set1_p10CSR() sets the PKCS#10 CSR to be used in P10CR.
+OSSL_CMP_CTX_set1_p10CSR() sets the PKCS#10 CSR to use in P10CR messages.
+If such a CSR is provided, its subject and public key fields are also
+used as fallback values for the certificate template of IR/CR/KUR/RR messages,
+and any extensions included are added to the template of IR/CR/KUR messages.
-OSSL_CMP_CTX_push0_genm_ITAV() adds B<itav> to the stack in the B<ctx> which
+OSSL_CMP_CTX_push0_genm_ITAV() adds I<itav> to the stack in the I<ctx> which
will be the body of a General Message sent with this context.
+OSSL_CMP_certConf_cb() is the default certificate confirmation callback function.
+If the callback argument is not NULL it must point to a trust store.
+In this case the function checks that the newly enrolled certificate can be
+verified using this trust store and untrusted certificates from the I<ctx>,
+which have been augmented by the list of extraCerts received.
+During this verification, any certificate status checking is disabled.
+If the callback argument is NULL the function tries building an approximate
+chain as far as possible using the same untrusted certificates from the I<ctx>,
+and if this fails it takes the received extraCerts as fallback.
+The resulting cert chain can be retrieved using OSSL_CMP_CTX_get1_newChain().
+
OSSL_CMP_CTX_set_certConf_cb() sets the callback used for evaluating the newly
enrolled certificate before the library sends, depending on its result,
a positive or negative certConf message to the server. The callback has type
typedef int (*OSSL_CMP_certConf_cb_t) (OSSL_CMP_CTX *ctx, X509 *cert,
int fail_info, const char **txt);
-and should inspect the certificate it obtains via the B<cert> parameter and may
-overrule the pre-decision given in the B<fail_info> and B<*txt> parameters.
+and should inspect the certificate it obtains via the I<cert> parameter and may
+overrule the pre-decision given in the I<fail_info> and I<*txt> parameters.
If it accepts the certificate it must return 0, indicating success. Else it must
return a bit field reflecting PKIFailureInfo with at least one failure bit and
-may set the B<*txt> output parameter to point to a string constant with more
+may set the I<*txt> output parameter to point to a string constant with more
detail. The transfer callback may make use of a custom defined argument stored
-in the B<ctx> by means of OSSL_CMP_CTX_set_certConf_cb_arg(), which may be
+in the I<ctx> by means of OSSL_CMP_CTX_set_certConf_cb_arg(), which may be
retrieved again through OSSL_CMP_CTX_get_certConf_cb_arg().
Typically, the callback will check at least that the certificate can be verified
using a set of trusted certificates.
OSSL_CMP_CTX_set_certConf_cb_arg() sets an argument, respectively a pointer to a
structure containing arguments, optionally to be used by the certConf callback.
-
B<arg> is not consumed, and it must therefore explicitly be freed when not
-needed any more.
B<arg> may be NULL to clear the entry.
+
I<arg> is not consumed, and it must therefore explicitly be freed when not
+needed any more.
I<arg> may be NULL to clear the entry.
OSSL_CMP_CTX_get_certConf_cb_arg() gets the argument, respectively the pointer
to a structure containing arguments, previously set by
OSSL_CMP_CTX_set_certConf_cb_arg(), or NULL if unset.
-OSSL_CMP_CTX_get_status() returns the PKIstatus from the last received
-CertRepMessage or Revocation Response or error message, or -1 if unset.
+OSSL_CMP_CTX_get_status() returns for client contexts the PKIstatus from
+the last received CertRepMessage or Revocation Response or error message:
+=item B<OSSL_CMP_PKISTATUS_accepted> on successful receipt of a GENP message:
+
+=over 4
+
+=item B<OSSL_CMP_PKISTATUS_request>
+
+if an IR/CR/KUR/RR/GENM request message could not be produced,
+
+=item B<OSSL_CMP_PKISTATUS_trans>
+
+on a transmission error or transaction error for this type of request, and
+
+=item B<OSSL_CMP_PKISTATUS_unspecified>
+
+if no such request was attempted or OSSL_CMP_CTX_reinit() has been called.
+
+=back
+
+For server contexts it returns
+B<OSSL_CMP_PKISTATUS_trans> if a transaction is open,
+otherwise B<OSSL_CMP_PKISTATUS_unspecified>.
OSSL_CMP_CTX_get0_statusString() returns the statusString from the last received
CertRepMessage or Revocation Response or error message, or NULL if unset.
OSSL_CMP_CTX_get_failInfoCode() returns the error code from the failInfo field
-of the last received CertRepMessage or Revocation Response or error message.
+of the last received CertRepMessage or Revocation Response or error message,
+or -1 if no such response was received or OSSL_CMP_CTX_reinit() has been called.
This is a bit field and the flags for it are specified in the header file
F<< <openssl/cmp.h> >>.
The flags start with OSSL_CMP_CTX_FAILINFO, for example:
OSSL_CMP_CTX_FAILINFO_badAlg. Returns -1 if the failInfoCode field is unset.
+OSSL_CMP_CTX_get0_validatedSrvCert() returns
+the successfully validated certificate, if any, that the CMP server used
+in the current transaction for signature-based response message protection,
+or NULL if the server used MAC-based protection.
+The value is relevant only at the end of a successful transaction.
+It may be used to check the authorization of the server based on its cert.
+
OSSL_CMP_CTX_get0_newCert() returns the pointer to the newly obtained
certificate in case it is available, else NULL.
X.509 certificates computed by OSSL_CMP_certConf_cb() (if this function has
been called) on the last received certificate response message IP/CP/KUP.
-OSSL_CMP_CTX_get1_caPubs() returns a pointer to a duplicate of the stack of
-X.509 certificates received in the caPubs field of last received certificate
-response message IP/CP/KUP.
+OSSL_CMP_CTX_get1_caPubs() returns a pointer to a duplicate of the list of
+X.509 certificates in the caPubs field of the last received certificate
+response message (of type IP, CP, or KUP),
+or an empty stack if no caPubs have been received in the current transaction.
-OSSL_CMP_CTX_get1_extraCertsIn() returns a pointer to a duplicate of the stack
-of X.509 certificates received in the last received nonempty extraCerts field.
-Returns an empty stack if no extraCerts have been received in the current
-transaction.
+OSSL_CMP_CTX_get1_extraCertsIn() returns a pointer to a duplicate of the list
+of X.509 certificates contained in the extraCerts field of the last received
+response message (except for pollRep and PKIConf), or
+an empty stack if no extraCerts have been received in the current transaction.
OSSL_CMP_CTX_set1_transactionID() sets the given transaction ID in the given
OSSL_CMP_CTX structure.
-OSSL_CMP_CTX_set1_senderNonce() stores the last sent sender B<nonce> in
-the B<ctx>. This will be used to validate the recipNonce in incoming messages.
+OSSL_CMP_CTX_set1_senderNonce() stores the last sent sender I<nonce> in
+the I<ctx>. This will be used to validate the recipNonce in incoming messages.
=head1 NOTES
OSSL_CMP_CTX_free() and OSSL_CMP_CTX_print_errors() do not return anything.
OSSL_CMP_CTX_new(),
+OSSL_CMP_CTX_get0_libctx(), OSSL_CMP_CTX_get0_propq(),
OSSL_CMP_CTX_get_http_cb_arg(),
OSSL_CMP_CTX_get_transfer_cb_arg(),
-OSSL_CMP_CTX_get0_trustedStore(),
-OSSL_CMP_CTX_get0_untrusted_certs(),
+OSSL_CMP_CTX_get0_trusted(),
+OSSL_CMP_CTX_get0_untrusted(),
+OSSL_CMP_CTX_get0_geninfo_ITAVs(),
OSSL_CMP_CTX_get0_newPkey(),
OSSL_CMP_CTX_get_certConf_cb_arg(),
OSSL_CMP_CTX_get0_statusString(),
+OSSL_CMP_CTX_get0_validatedSrvCert(),
OSSL_CMP_CTX_get0_newCert(),
OSSL_CMP_CTX_get0_newChain(),
OSSL_CMP_CTX_get1_caPubs(), and
OSSL_CMP_CTX_get_failInfoCode()
return the intended value as described above or -1 on error.
-All other functions return 1 on success, 0 on error.
+OSSL_CMP_certConf_cb() returns I<fail_info> if it is not equal to 0,
+else 0 on successful validation,
+or else a bit field with the B<OSSL_CMP_PKIFAILUREINFO_incorrectData> bit set.
+
+All other functions, including OSSL_CMP_CTX_reinit()
+and OSSL_CMP_CTX_reset_geninfo_ITAVs(),
+return 1 on success, 0 on error.
=head1 EXAMPLES
OSSL_CMP_CTX_set1_server(cmp_ctx, name_or_address);
OSSL_CMP_CTX_set1_serverPort(cmp_ctx, port_string);
OSSL_CMP_CTX_set1_serverPath(cmp_ctx, path_or_alias);
- OSSL_CMP_CTX_set0_trustedStore(cmp_ctx, ts);
+ OSSL_CMP_CTX_set0_trusted(cmp_ctx, ts);
-Set up client credentials for password-based protection (PBM):
+Set up symmetric credentials for MAC-based message protection such as PBM:
OSSL_CMP_CTX_set1_referenceValue(cmp_ctx, ref, ref_len);
OSSL_CMP_CTX_set1_secretValue(cmp_ctx, sec, sec_len);
OSSL_CMP_CTX_reinit(cmp_ctx);
ASN1_OBJECT *type = OBJ_txt2obj("1.3.6.1.5.5.7.4.2", 1);
- OSSL_CMP_ITAV *itav = OSSL_CMP_ITAV_new(type, NULL);
+ OSSL_CMP_ITAV *itav = OSSL_CMP_ITAV_create(type, NULL);
OSSL_CMP_CTX_push0_genm_ITAV(cmp_ctx, itav);
STACK_OF(OSSL_CMP_ITAV) *itavs;
L<OSSL_CMP_exec_IR_ses(3)>, L<OSSL_CMP_exec_CR_ses(3)>,
L<OSSL_CMP_exec_KUR_ses(3)>, L<OSSL_CMP_exec_GENM_ses(3)>,
-L<OSSL_CMP_exec_certreq(3)>
+L<OSSL_CMP_exec_certreq(3)>, L<OSSL_CMP_MSG_http_perform(3)>,
+L<ERR_print_errors_cb(3)>, L<OSSL_HTTP_open(3)>
=head1 HISTORY
The OpenSSL CMP support was added in OpenSSL 3.0.
+OSSL_CMP_CTX_get0_trustedStore() was renamed to OSSL_CMP_CTX_get0_trusted() and
+OSSL_CMP_CTX_set0_trustedStore() was renamed to OSSL_CMP_CTX_set0_trusted(),
+using macros, while keeping the old names for backward compatibility,
+in OpenSSL 3.2.
+
+OSSL_CMP_CTX_reset_geninfo_ITAVs() was added in OpenSSL 3.0.8.
+
+OSSL_CMP_CTX_set1_serialNumber(),
+OSSL_CMP_CTX_get0_libctx(), OSSL_CMP_CTX_get0_propq(), and
+OSSL_CMP_CTX_get0_validatedSrvCert() were added in OpenSSL 3.2.
+
+OSSL_CMP_CTX_get0_geninfo_ITAVs() was added in OpenSSL 3.3.
+
=head1 COPYRIGHT
-Copyright 2007-2020 The OpenSSL Project Authors. All Rights Reserved.
+Copyright 2007-2024 The OpenSSL Project Authors. All Rights Reserved.
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
projects / openssl.git / blobdiff