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Diffstat (limited to 'openssl-1.1.0h/doc/crypto/X509_STORE_CTX_new.pod')
| -rw-r--r-- | openssl-1.1.0h/doc/crypto/X509_STORE_CTX_new.pod | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/openssl-1.1.0h/doc/crypto/X509_STORE_CTX_new.pod b/openssl-1.1.0h/doc/crypto/X509_STORE_CTX_new.pod new file mode 100644 index 0000000..2828ed7 --- /dev/null +++ b/openssl-1.1.0h/doc/crypto/X509_STORE_CTX_new.pod @@ -0,0 +1,174 @@ +=pod + +=head1 NAME + +X509_STORE_CTX_new, X509_STORE_CTX_cleanup, X509_STORE_CTX_free, +X509_STORE_CTX_init, X509_STORE_CTX_set0_trusted_stack, X509_STORE_CTX_set_cert, +X509_STORE_CTX_set0_crls, +X509_STORE_CTX_get0_chain, X509_STORE_CTX_set0_verified_chain, +X509_STORE_CTX_get0_param, X509_STORE_CTX_set0_param, +X509_STORE_CTX_get0_untrusted, X509_STORE_CTX_set0_untrusted, +X509_STORE_CTX_get_num_untrusted, +X509_STORE_CTX_set_default, +X509_STORE_CTX_set_verify, +X509_STORE_CTX_verify_fn +- X509_STORE_CTX initialisation + +=head1 SYNOPSIS + + #include <openssl/x509_vfy.h> + + X509_STORE_CTX *X509_STORE_CTX_new(void); + void X509_STORE_CTX_cleanup(X509_STORE_CTX *ctx); + void X509_STORE_CTX_free(X509_STORE_CTX *ctx); + + int X509_STORE_CTX_init(X509_STORE_CTX *ctx, X509_STORE *store, + X509 *x509, STACK_OF(X509) *chain); + + void X509_STORE_CTX_set0_trusted_stack(X509_STORE_CTX *ctx, STACK_OF(X509) *sk); + + void X509_STORE_CTX_set_cert(X509_STORE_CTX *ctx, X509 *x); + STACK_OF(X509) *X509_STORE_CTX_get0_chain(X609_STORE_CTX *ctx); + void X509_STORE_CTX_set0_verified_chain(X509_STORE_CTX *ctx, STACK_OF(X509) *chain); + void X509_STORE_CTX_set0_crls(X509_STORE_CTX *ctx, STACK_OF(X509_CRL) *sk); + + X509_VERIFY_PARAM *X509_STORE_CTX_get0_param(X509_STORE_CTX *ctx); + void X509_STORE_CTX_set0_param(X509_STORE_CTX *ctx, X509_VERIFY_PARAM *param); + int X509_STORE_CTX_set_default(X509_STORE_CTX *ctx, const char *name); + + STACK_OF(X509)* X509_STORE_CTX_get0_untrusted(X509_STORE_CTX *ctx); + void X509_STORE_CTX_set0_untrusted(X509_STORE_CTX *ctx, STACK_OF(X509) *sk); + + int X509_STORE_CTX_get_num_untrusted(X509_STORE_CTX *ctx); + + typedef int (*X509_STORE_CTX_verify_fn)(X509_STORE_CTX *); + void X509_STORE_CTX_set_verify(X509_STORE_CTX *ctx, X509_STORE_CTX_verify_fn verify); + +=head1 DESCRIPTION + +These functions initialise an B<X509_STORE_CTX> structure for subsequent use +by X509_verify_cert(). + +X509_STORE_CTX_new() returns a newly initialised B<X509_STORE_CTX> structure. + +X509_STORE_CTX_cleanup() internally cleans up an B<X509_STORE_CTX> structure. +The context can then be reused with an new call to X509_STORE_CTX_init(). + +X509_STORE_CTX_free() completely frees up B<ctx>. After this call B<ctx> +is no longer valid. +If B<ctx> is NULL nothing is done. + +X509_STORE_CTX_init() sets up B<ctx> for a subsequent verification operation. +It must be called before each call to X509_verify_cert(), i.e. a B<ctx> is only +good for one call to X509_verify_cert(); if you want to verify a second +certificate with the same B<ctx> then you must call X509_STORE_CTX_cleanup() +and then X509_STORE_CTX_init() again before the second call to +X509_verify_cert(). The trusted certificate store is set to B<store>, the end +entity certificate to be verified is set to B<x509> and a set of additional +certificates (which will be untrusted but may be used to build the chain) in +B<chain>. Any or all of the B<store>, B<x509> and B<chain> parameters can be +B<NULL>. + +X509_STORE_CTX_set0_trusted_stack() sets the set of trusted certificates of +B<ctx> to B<sk>. This is an alternative way of specifying trusted certificates +instead of using an B<X509_STORE>. + +X509_STORE_CTX_set_cert() sets the certificate to be verified in B<ctx> to +B<x>. + +X509_STORE_CTX_set0_verified_chain() sets the validated chain used +by B<ctx> to be B<chain>. +Ownership of the chain is transferred to B<ctx> and should not be +free'd by the caller. +X509_STORE_CTX_get0_chain() returns a the internal pointer used by the +B<ctx> that contains the validated chain. + +X509_STORE_CTX_set0_crls() sets a set of CRLs to use to aid certificate +verification to B<sk>. These CRLs will only be used if CRL verification is +enabled in the associated B<X509_VERIFY_PARAM> structure. This might be +used where additional "useful" CRLs are supplied as part of a protocol, +for example in a PKCS#7 structure. + +X509_STORE_CTX_get0_param() retrieves an internal pointer +to the verification parameters associated with B<ctx>. + +X509_STORE_CTX_get0_untrusted() retrieves an internal pointer to the +stack of untrusted certificates associated with B<ctx>. + +X509_STORE_CTX_set0_untrusted() sets the internal point to the stack +of untrusted certificates associated with B<ctx> to B<sk>. + +X509_STORE_CTX_set0_param() sets the internal verification parameter pointer +to B<param>. After this call B<param> should not be used. + +X509_STORE_CTX_set_default() looks up and sets the default verification +method to B<name>. This uses the function X509_VERIFY_PARAM_lookup() to +find an appropriate set of parameters from B<name>. + +X509_STORE_CTX_get_num_untrusted() returns the number of untrusted certificates +that were used in building the chain following a call to X509_verify_cert(). + +X509_STORE_CTX_set_verify() provides the capability for overriding the default +verify function. This function is responsible for verifying chain signatures and +expiration times. + +A verify function is defined as an X509_STORE_CTX_verify type which has the +following signature: + + int (*verify)(X509_STORE_CTX *); + +This function should receive the current X509_STORE_CTX as a parameter and +return 1 on success or 0 on failure. + +=head1 NOTES + +The certificates and CRLs in a store are used internally and should B<not> +be freed up until after the associated B<X509_STORE_CTX> is freed. + +=head1 BUGS + +The certificates and CRLs in a context are used internally and should B<not> +be freed up until after the associated B<X509_STORE_CTX> is freed. Copies +should be made or reference counts increased instead. + +=head1 RETURN VALUES + +X509_STORE_CTX_new() returns an newly allocates context or B<NULL> is an +error occurred. + +X509_STORE_CTX_init() returns 1 for success or 0 if an error occurred. + +X509_STORE_CTX_get0_param() returns a pointer to an B<X509_VERIFY_PARAM> +structure or B<NULL> if an error occurred. + +X509_STORE_CTX_cleanup(), X509_STORE_CTX_free(), +X509_STORE_CTX_set0_trusted_stack(), +X509_STORE_CTX_set_cert(), +X509_STORE_CTX_set0_crls() and X509_STORE_CTX_set0_param() do not return +values. + +X509_STORE_CTX_set_default() returns 1 for success or 0 if an error occurred. + +X509_STORE_CTX_get_num_untrusted() returns the number of untrusted certificates +used. + +=head1 SEE ALSO + +L<X509_verify_cert(3)> +L<X509_VERIFY_PARAM_set_flags(3)> + +=head1 HISTORY + +X509_STORE_CTX_set0_crls() was first added to OpenSSL 1.0.0 +X509_STORE_CTX_get_num_untrusted() was first added to OpenSSL 1.1.0 + +=head1 COPYRIGHT + +Copyright 2009-2016 The OpenSSL Project Authors. All Rights Reserved. + +Licensed under the OpenSSL license (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 +L<https://www.openssl.org/source/license.html>. + +=cut |