mirror of git://git.gnupg.org/gnupg.git
129 lines
5.1 KiB
C
129 lines
5.1 KiB
C
/* certcache.h - Certificate caching
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* Copyright (C) 2004, 2008 g10 Code GmbH
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*
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* This file is part of DirMngr.
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*
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* DirMngr is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* DirMngr is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#ifndef CERTCACHE_H
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#define CERTCACHE_H
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/* The origin of the trusted root certificates. */
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enum {
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CERTTRUST_CLASS_SYSTEM = 1, /* From the system's list of trusted certs. */
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CERTTRUST_CLASS_CONFIG = 2, /* From dirmngr's config files. */
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CERTTRUST_CLASS_HKP = 4, /* From --hkp-cacert */
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CERTTRUST_CLASS_HKPSPOOL= 8, /* The one and only from sks-keyservers */
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};
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/* First time initialization of the certificate cache. */
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void cert_cache_init (strlist_t hkp_cacerts);
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/* Deinitialize the certificate cache. */
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void cert_cache_deinit (int full);
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/* Print some statistics to the log file. */
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void cert_cache_print_stats (ctrl_t ctrl);
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/* Return true if any cert of a class in MASK is permanently loaded. */
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int cert_cache_any_in_class (unsigned int mask);
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/* Compute the fingerprint of the certificate CERT and put it into
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the 20 bytes large buffer DIGEST. Return address of this buffer. */
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unsigned char *cert_compute_fpr (ksba_cert_t cert, unsigned char *digest);
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/* Put CERT into the certificate cache. */
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gpg_error_t cache_cert (ksba_cert_t cert);
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/* Put CERT into the certificate cache and return the fingerprint. */
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gpg_error_t cache_cert_silent (ksba_cert_t cert, void *fpr_buffer);
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/* Return 0 if the certificate is a trusted certificate. Returns
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* GPG_ERR_NOT_TRUSTED if it is not trusted or other error codes in
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* case of systems errors. TRUSTCLASSES are the bitwise ORed
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* CERTTRUST_CLASS values to use for the check. */
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gpg_error_t is_trusted_cert (ksba_cert_t cert, unsigned trustclasses);
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/* Return a certificate object for the given fingerprint. FPR is
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expected to be a 20 byte binary SHA-1 fingerprint. If no matching
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certificate is available in the cache NULL is returned. The caller
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must release a returned certificate. */
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ksba_cert_t get_cert_byfpr (const unsigned char *fpr);
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/* Return a certificate object for the given fingerprint. STRING is
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expected to be a SHA-1 fingerprint in standard hex notation with or
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without colons. If no matching certificate is available in the
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cache NULL is returned. The caller must release a returned
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certificate. */
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ksba_cert_t get_cert_byhexfpr (const char *string);
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/* Return the certificate matching ISSUER_DN and SERIALNO. */
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ksba_cert_t get_cert_bysn (const char *issuer_dn, ksba_sexp_t serialno);
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/* Return the certificate matching ISSUER_DN. SEQ should initially be
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set to 0 and bumped up to get the next issuer with that DN. */
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ksba_cert_t get_cert_byissuer (const char *issuer_dn, unsigned int seq);
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/* Return the certificate matching SUBJECT_DN. SEQ should initially be
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set to 0 and bumped up to get the next issuer with that DN. */
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ksba_cert_t get_cert_bysubject (const char *subject_dn, unsigned int seq);
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/* Given PATTERN, which is a string as used by GnuPG to specify a
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certificate, return all matching certificates by calling the
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supplied function RETFNC. */
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gpg_error_t get_certs_bypattern (const char *pattern,
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gpg_error_t (*retfnc)(void*,ksba_cert_t),
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void *retfnc_data);
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/* Return the certificate matching ISSUER_DN and SERIALNO; if it is
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not already in the cache, try to find it from other resources. */
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ksba_cert_t find_cert_bysn (ctrl_t ctrl,
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const char *issuer_dn, ksba_sexp_t serialno);
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/* Return the certificate matching SUBJECT_DN and (if not NULL) KEYID. If
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it is not already in the cache, try to find it from other
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resources. Note, that the external search does not work for user
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certificates because the LDAP lookup is on the caCertificate
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attribute. For our purposes this is just fine. */
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ksba_cert_t find_cert_bysubject (ctrl_t ctrl,
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const char *subject_dn, ksba_sexp_t keyid);
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/* Given the certificate CERT locate the issuer for this certificate
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and return it at R_CERT. Returns 0 on success or
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GPG_ERR_NOT_FOUND. */
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gpg_error_t find_issuing_cert (ctrl_t ctrl,
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ksba_cert_t cert, ksba_cert_t *r_cert);
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/* A simple list of certificates. */
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struct certlist_s
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{
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struct certlist_s *next;
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ksba_cert_t cert;
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unsigned char fpr[20]; /* of the certificate. */
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};
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typedef struct certlist_s *certlist_t;
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gpg_error_t read_certlist_from_stream (certlist_t *r_certlist, estream_t fp);
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void release_certlist (certlist_t cl);
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#endif /*CERTCACHE_H*/
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