2 * Copyright 2014-2020 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
10 #include "internal/refcount.h"
12 #define X509V3_conf_add_error_name_value(val) \
13 ERR_add_error_data(4, "name=", (val)->name, ", value=", (val)->value)
16 * This structure holds all parameters associated with a verify operation by
17 * including an X509_VERIFY_PARAM structure in related structures the
18 * parameters used can be customized
21 struct X509_VERIFY_PARAM_st {
23 time_t check_time; /* Time to use */
24 uint32_t inh_flags; /* Inheritance flags */
25 unsigned long flags; /* Various verify flags */
26 int purpose; /* purpose to check untrusted certificates */
27 int trust; /* trust setting to check */
28 int depth; /* Verify depth */
29 int auth_level; /* Security level for chain verification */
30 STACK_OF(ASN1_OBJECT) *policies; /* Permissible policies */
31 /* Peer identity details */
32 STACK_OF(OPENSSL_STRING) *hosts; /* Set of acceptable names */
33 unsigned int hostflags; /* Flags to control matching features */
34 char *peername; /* Matching hostname in peer certificate */
35 char *email; /* If not NULL email address to match */
37 unsigned char *ip; /* If not NULL IP address to match */
38 size_t iplen; /* Length of IP address */
41 /* No error callback if depth < 0 */
42 int x509_check_cert_time(X509_STORE_CTX *ctx, X509 *x, int depth);
44 /* a sequence of these are used */
45 struct x509_attributes_st {
47 STACK_OF(ASN1_TYPE) *set;
50 struct X509_extension_st {
52 ASN1_BOOLEAN critical;
53 ASN1_OCTET_STRING value;
57 * Method to handle CRL access. In general a CRL could be very large (several
58 * Mb) and can consume large amounts of resources if stored in memory by
59 * multiple processes. This method allows general CRL operations to be
60 * redirected to more efficient callbacks: for example a CRL entry database.
63 #define X509_CRL_METHOD_DYNAMIC 1
65 struct x509_crl_method_st {
67 int (*crl_init) (X509_CRL *crl);
68 int (*crl_free) (X509_CRL *crl);
69 int (*crl_lookup) (X509_CRL *crl, X509_REVOKED **ret,
70 const ASN1_INTEGER *ser, const X509_NAME *issuer);
71 int (*crl_verify) (X509_CRL *crl, EVP_PKEY *pk);
74 struct x509_lookup_method_st {
76 int (*new_item) (X509_LOOKUP *ctx);
77 void (*free) (X509_LOOKUP *ctx);
78 int (*init) (X509_LOOKUP *ctx);
79 int (*shutdown) (X509_LOOKUP *ctx);
80 int (*ctrl) (X509_LOOKUP *ctx, int cmd, const char *argc, long argl,
82 int (*get_by_subject) (X509_LOOKUP *ctx, X509_LOOKUP_TYPE type,
83 const X509_NAME *name, X509_OBJECT *ret);
84 int (*get_by_issuer_serial) (X509_LOOKUP *ctx, X509_LOOKUP_TYPE type,
85 const X509_NAME *name,
86 const ASN1_INTEGER *serial,
88 int (*get_by_fingerprint) (X509_LOOKUP *ctx, X509_LOOKUP_TYPE type,
89 const unsigned char *bytes, int len,
91 int (*get_by_alias) (X509_LOOKUP *ctx, X509_LOOKUP_TYPE type,
92 const char *str, int len, X509_OBJECT *ret);
93 int (*get_by_subject_ex) (X509_LOOKUP *ctx, X509_LOOKUP_TYPE type,
94 const X509_NAME *name, X509_OBJECT *ret,
95 OPENSSL_CTX *libctx, const char *propq);
96 int (*ctrl_ex) (X509_LOOKUP *ctx, int cmd,
97 const char *argc, long argl, char **ret,
98 OPENSSL_CTX *libctx, const char *propq);
101 /* This is the functions plus an instance of the local variables. */
102 struct x509_lookup_st {
103 int init; /* have we been started */
104 int skip; /* don't use us. */
105 X509_LOOKUP_METHOD *method; /* the functions */
106 void *method_data; /* method data */
107 X509_STORE *store_ctx; /* who owns us */
111 * This is used to hold everything. It is used for all certificate
112 * validation. Once we have a certificate chain, the 'verify' function is
113 * then called to actually check the cert chain.
115 struct x509_store_st {
116 /* The following is a cache of trusted certs */
117 int cache; /* if true, stash any hits */
118 STACK_OF(X509_OBJECT) *objs; /* Cache of all objects */
119 /* These are external lookup methods */
120 STACK_OF(X509_LOOKUP) *get_cert_methods;
121 X509_VERIFY_PARAM *param;
122 /* Callbacks for various operations */
123 /* called to verify a certificate */
124 int (*verify) (X509_STORE_CTX *ctx);
126 int (*verify_cb) (int ok, X509_STORE_CTX *ctx);
127 /* get issuers cert from ctx */
128 int (*get_issuer) (X509 **issuer, X509_STORE_CTX *ctx, X509 *x);
130 int (*check_issued) (X509_STORE_CTX *ctx, X509 *x, X509 *issuer);
131 /* Check revocation status of chain */
132 int (*check_revocation) (X509_STORE_CTX *ctx);
134 int (*get_crl) (X509_STORE_CTX *ctx, X509_CRL **crl, X509 *x);
135 /* Check CRL validity */
136 int (*check_crl) (X509_STORE_CTX *ctx, X509_CRL *crl);
137 /* Check certificate against CRL */
138 int (*cert_crl) (X509_STORE_CTX *ctx, X509_CRL *crl, X509 *x);
139 /* Check policy status of the chain */
140 int (*check_policy) (X509_STORE_CTX *ctx);
141 STACK_OF(X509) *(*lookup_certs) (X509_STORE_CTX *ctx,
142 const X509_NAME *nm);
143 /* cannot constify 'ctx' param due to lookup_certs_sk() in x509_vfy.c */
144 STACK_OF(X509_CRL) *(*lookup_crls) (const X509_STORE_CTX *ctx,
145 const X509_NAME *nm);
146 int (*cleanup) (X509_STORE_CTX *ctx);
147 CRYPTO_EX_DATA ex_data;
148 CRYPTO_REF_COUNT references;
152 typedef struct lookup_dir_hashes_st BY_DIR_HASH;
153 typedef struct lookup_dir_entry_st BY_DIR_ENTRY;
154 DEFINE_STACK_OF(BY_DIR_HASH)
155 DEFINE_STACK_OF(BY_DIR_ENTRY)
156 typedef STACK_OF(X509_NAME_ENTRY) STACK_OF_X509_NAME_ENTRY;
157 DEFINE_STACK_OF(STACK_OF_X509_NAME_ENTRY)
159 void x509_set_signature_info(X509_SIG_INFO *siginf, const X509_ALGOR *alg,
160 const ASN1_STRING *sig);
161 int x509_likely_issued(X509 *issuer, X509 *subject);
162 int x509_signing_allowed(const X509 *issuer, const X509 *subject);