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3bed88a397
The certificate path validation procedure specified in RFC 5280 does not
include checking the validity period of the trusted (root) certificate.
Still it is common good practice to perform this check.
Also OpenSSL did this until commit 0e7b1383e, which accidentally killed it.
The current commit restores the previous behavior.
It also removes the cause of that bug, namely counter-intuitive design
of the internal function check_issued(), which was complicated by checks
that actually belong to some other internal function, namely find_issuer().
Moreover, this commit adds a regression check and proper documentation of
the root cert validity period check feature, which had been missing so far.
Fixes #13427
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/13590)
275 lines
11 KiB
Plaintext
275 lines
11 KiB
Plaintext
=pod
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=head1 NAME
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X509_STORE_set_lookup_crls_cb,
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X509_STORE_set_verify_func,
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X509_STORE_get_cleanup,
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X509_STORE_set_cleanup,
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X509_STORE_get_lookup_crls,
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X509_STORE_set_lookup_crls,
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X509_STORE_get_lookup_certs,
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X509_STORE_set_lookup_certs,
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X509_STORE_get_check_policy,
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X509_STORE_set_check_policy,
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X509_STORE_get_cert_crl,
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X509_STORE_set_cert_crl,
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X509_STORE_get_check_crl,
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X509_STORE_set_check_crl,
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X509_STORE_get_get_crl,
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X509_STORE_set_get_crl,
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X509_STORE_get_check_revocation,
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X509_STORE_set_check_revocation,
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X509_STORE_get_check_issued,
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X509_STORE_set_check_issued,
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X509_STORE_get_get_issuer,
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X509_STORE_set_get_issuer,
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X509_STORE_CTX_get_verify,
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X509_STORE_set_verify,
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X509_STORE_get_verify_cb,
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X509_STORE_set_verify_cb_func, X509_STORE_set_verify_cb,
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X509_STORE_CTX_cert_crl_fn, X509_STORE_CTX_check_crl_fn,
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X509_STORE_CTX_check_issued_fn, X509_STORE_CTX_check_policy_fn,
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X509_STORE_CTX_check_revocation_fn, X509_STORE_CTX_cleanup_fn,
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X509_STORE_CTX_get_crl_fn, X509_STORE_CTX_get_issuer_fn,
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X509_STORE_CTX_lookup_certs_fn, X509_STORE_CTX_lookup_crls_fn
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- set verification callback
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=head1 SYNOPSIS
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#include <openssl/x509_vfy.h>
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typedef int (*X509_STORE_CTX_get_issuer_fn)(X509 **issuer,
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X509_STORE_CTX *ctx, X509 *x);
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typedef int (*X509_STORE_CTX_check_issued_fn)(X509_STORE_CTX *ctx,
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X509 *x, X509 *issuer);
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typedef int (*X509_STORE_CTX_check_revocation_fn)(X509_STORE_CTX *ctx);
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typedef int (*X509_STORE_CTX_get_crl_fn)(X509_STORE_CTX *ctx,
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X509_CRL **crl, X509 *x);
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typedef int (*X509_STORE_CTX_check_crl_fn)(X509_STORE_CTX *ctx, X509_CRL *crl);
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typedef int (*X509_STORE_CTX_cert_crl_fn)(X509_STORE_CTX *ctx,
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X509_CRL *crl, X509 *x);
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typedef int (*X509_STORE_CTX_check_policy_fn)(X509_STORE_CTX *ctx);
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typedef STACK_OF(X509) *(*X509_STORE_CTX_lookup_certs_fn)(X509_STORE_CTX *ctx,
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const X509_NAME *nm);
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typedef STACK_OF(X509_CRL) *(*X509_STORE_CTX_lookup_crls_fn)(const
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X509_STORE_CTX *ctx,
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const X509_NAME *nm);
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typedef int (*X509_STORE_CTX_cleanup_fn)(X509_STORE_CTX *ctx);
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void X509_STORE_set_verify_cb(X509_STORE *ctx,
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X509_STORE_CTX_verify_cb verify_cb);
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X509_STORE_CTX_verify_cb X509_STORE_get_verify_cb(const X509_STORE_CTX *ctx);
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void X509_STORE_set_verify(X509_STORE *ctx, X509_STORE_CTX_verify_fn verify);
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X509_STORE_CTX_verify_fn X509_STORE_CTX_get_verify(const X509_STORE_CTX *ctx);
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void X509_STORE_set_get_issuer(X509_STORE *ctx,
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X509_STORE_CTX_get_issuer_fn get_issuer);
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X509_STORE_CTX_get_issuer_fn
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X509_STORE_get_get_issuer(const X509_STORE_CTX *ctx);
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void X509_STORE_set_check_issued(X509_STORE *ctx,
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X509_STORE_CTX_check_issued_fn check_issued);
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X509_STORE_CTX_check_issued_fn
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X509_STORE_get_check_issued(const X509_STORE_CTX *ctx);
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void X509_STORE_set_check_revocation(X509_STORE *ctx,
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X509_STORE_CTX_check_revocation_fn check_revocation);
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X509_STORE_CTX_check_revocation_fn
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X509_STORE_get_check_revocation(const X509_STORE_CTX *ctx);
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void X509_STORE_set_get_crl(X509_STORE *ctx,
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X509_STORE_CTX_get_crl_fn get_crl);
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X509_STORE_CTX_get_crl_fn X509_STORE_get_get_crl(const X509_STORE_CTX *ctx);
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void X509_STORE_set_check_crl(X509_STORE *ctx,
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X509_STORE_CTX_check_crl_fn check_crl);
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X509_STORE_CTX_check_crl_fn
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X509_STORE_get_check_crl(const X509_STORE_CTX *ctx);
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void X509_STORE_set_cert_crl(X509_STORE *ctx,
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X509_STORE_CTX_cert_crl_fn cert_crl);
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X509_STORE_CTX_cert_crl_fn X509_STORE_get_cert_crl(const X509_STORE_CTX *ctx);
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void X509_STORE_set_check_policy(X509_STORE *ctx,
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X509_STORE_CTX_check_policy_fn check_policy);
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X509_STORE_CTX_check_policy_fn
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X509_STORE_get_check_policy(const X509_STORE_CTX *ctx);
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void X509_STORE_set_lookup_certs(X509_STORE *ctx,
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X509_STORE_CTX_lookup_certs_fn lookup_certs);
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X509_STORE_CTX_lookup_certs_fn
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X509_STORE_get_lookup_certs(const X509_STORE_CTX *ctx);
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void X509_STORE_set_lookup_crls(X509_STORE *ctx,
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X509_STORE_CTX_lookup_crls_fn lookup_crls);
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X509_STORE_CTX_lookup_crls_fn
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X509_STORE_get_lookup_crls(const X509_STORE_CTX *ctx);
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void X509_STORE_set_cleanup(X509_STORE *ctx,
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X509_STORE_CTX_cleanup_fn cleanup);
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X509_STORE_CTX_cleanup_fn X509_STORE_get_cleanup(const X509_STORE_CTX *ctx);
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/* Aliases */
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void X509_STORE_set_verify_cb_func(X509_STORE *st,
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X509_STORE_CTX_verify_cb verify_cb);
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void X509_STORE_set_verify_func(X509_STORE *ctx,
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X509_STORE_CTX_verify_fn verify);
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void X509_STORE_set_lookup_crls_cb(X509_STORE *ctx,
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X509_STORE_CTX_lookup_crls_fn lookup_crls);
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=head1 DESCRIPTION
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X509_STORE_set_verify_cb() sets the verification callback of B<ctx> to
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B<verify_cb> overwriting the previous callback.
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The callback assigned with this function becomes a default for the one
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that can be assigned directly to the corresponding B<X509_STORE_CTX>,
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please see L<X509_STORE_CTX_set_verify_cb(3)> for further information.
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X509_STORE_set_verify() sets the final chain verification function for
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B<ctx> to B<verify>.
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Its purpose is to go through the chain of certificates and check that
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all signatures are valid and that the current time is within the
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limits of each certificate's first and last validity time.
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The final chain verification functions must return 0 on failure and 1
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on success.
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I<If no chain verification function is provided, the internal default
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function will be used instead.>
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X509_STORE_set_get_issuer() sets the function to get the issuer
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certificate that verifies the given certificate B<x>.
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When found, the issuer certificate must be assigned to B<*issuer>.
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This function must return 0 on failure and 1 on success.
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I<If no function to get the issuer is provided, the internal default
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function will be used instead.>
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X509_STORE_set_check_issued() sets the function to check that a given
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certificate B<x> is issued by the issuer certificate B<issuer>.
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This function must return 0 on failure (among others if B<x> hasn't
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been issued with B<issuer>) and 1 on success.
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I<If no function to get the issuer is provided, the internal default
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function will be used instead.>
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X509_STORE_set_check_revocation() sets the revocation checking
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function.
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Its purpose is to look through the final chain and check the
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revocation status for each certificate.
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It must return 0 on failure and 1 on success.
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I<If no function to get the issuer is provided, the internal default
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function will be used instead.>
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X509_STORE_set_get_crl() sets the function to get the crl for a given
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certificate B<x>.
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When found, the crl must be assigned to B<*crl>.
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This function must return 0 on failure and 1 on success.
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I<If no function to get the issuer is provided, the internal default
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function will be used instead.>
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X509_STORE_set_check_crl() sets the function to check the validity of
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the given B<crl>.
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This function must return 0 on failure and 1 on success.
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I<If no function to get the issuer is provided, the internal default
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function will be used instead.>
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X509_STORE_set_cert_crl() sets the function to check the revocation
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status of the given certificate B<x> against the given B<crl>.
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This function must return 0 on failure and 1 on success.
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I<If no function to get the issuer is provided, the internal default
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function will be used instead.>
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X509_STORE_set_check_policy() sets the function to check the policies
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of all the certificates in the final chain..
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This function must return 0 on failure and 1 on success.
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I<If no function to get the issuer is provided, the internal default
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function will be used instead.>
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X509_STORE_set_lookup_certs() and X509_STORE_set_lookup_crls() set the
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functions to look up all the certs or all the CRLs that match the
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given name B<nm>.
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These functions return NULL on failure and a pointer to a stack of
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certificates (B<X509>) or to a stack of CRLs (B<X509_CRL>) on
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success.
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I<If no function to get the issuer is provided, the internal default
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function will be used instead.>
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X509_STORE_set_cleanup() sets the final cleanup function, which is
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called when the context (B<X509_STORE_CTX>) is being torn down.
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This function doesn't return any value.
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I<If no function to get the issuer is provided, the internal default
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function will be used instead.>
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X509_STORE_get_verify_cb(), X509_STORE_CTX_get_verify(),
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X509_STORE_get_get_issuer(), X509_STORE_get_check_issued(),
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X509_STORE_get_check_revocation(), X509_STORE_get_get_crl(),
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X509_STORE_get_check_crl(), X509_STORE_set_verify(),
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X509_STORE_set_get_issuer(), X509_STORE_get_cert_crl(),
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X509_STORE_get_check_policy(), X509_STORE_get_lookup_certs(),
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X509_STORE_get_lookup_crls() and X509_STORE_get_cleanup() all return
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the function pointer assigned with X509_STORE_set_check_issued(),
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X509_STORE_set_check_revocation(), X509_STORE_set_get_crl(),
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X509_STORE_set_check_crl(), X509_STORE_set_cert_crl(),
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X509_STORE_set_check_policy(), X509_STORE_set_lookup_certs(),
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X509_STORE_set_lookup_crls() and X509_STORE_set_cleanup(), or NULL if
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no assignment has been made.
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X509_STORE_set_verify_cb_func(), X509_STORE_set_verify_func() and
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X509_STORE_set_lookup_crls_cb() are aliases for
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X509_STORE_set_verify_cb(), X509_STORE_set_verify() and
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X509_STORE_set_lookup_crls, available as macros for backward
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compatibility.
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=head1 NOTES
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All the callbacks from a B<X509_STORE> are inherited by the
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corresponding B<X509_STORE_CTX> structure when it is initialized.
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See L<X509_STORE_CTX_set_verify_cb(3)> for further details.
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=head1 BUGS
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The macro version of this function was the only one available before
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OpenSSL 1.0.0.
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=head1 RETURN VALUES
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The X509_STORE_set_*() functions do not return a value.
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The X509_STORE_get_*() functions return a pointer of the appropriate
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function type.
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=head1 SEE ALSO
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L<X509_STORE_CTX_set_verify_cb(3)>, L<X509_STORE_CTX_get0_chain(3)>,
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L<X509_STORE_CTX_verify_cb(3)>, L<X509_STORE_CTX_verify_fn(3)>,
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L<CMS_verify(3)>
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=head1 HISTORY
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The X509_STORE_set_verify_cb() function was added in OpenSSL 1.0.0.
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The functions
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X509_STORE_set_verify_cb(), X509_STORE_get_verify_cb(),
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X509_STORE_set_verify(), X509_STORE_CTX_get_verify(),
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X509_STORE_set_get_issuer(), X509_STORE_get_get_issuer(),
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X509_STORE_set_check_issued(), X509_STORE_get_check_issued(),
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X509_STORE_set_check_revocation(), X509_STORE_get_check_revocation(),
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X509_STORE_set_get_crl(), X509_STORE_get_get_crl(),
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X509_STORE_set_check_crl(), X509_STORE_get_check_crl(),
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X509_STORE_set_cert_crl(), X509_STORE_get_cert_crl(),
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X509_STORE_set_check_policy(), X509_STORE_get_check_policy(),
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X509_STORE_set_lookup_certs(), X509_STORE_get_lookup_certs(),
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X509_STORE_set_lookup_crls(), X509_STORE_get_lookup_crls(),
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X509_STORE_set_cleanup() and X509_STORE_get_cleanup()
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were added in OpenSSL 1.1.0.
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=head1 COPYRIGHT
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Copyright 2009-2020 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the Apache License 2.0 (the "License"). You may not use
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this file except in compliance with the License. You can obtain a copy
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in the file LICENSE in the source distribution or at
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L<https://www.openssl.org/source/license.html>.
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=cut
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