OpenSolaris_b135/lib/libpkg/common/p12lib.c
/*
* ====================================================================
* Copyright (c) 1999 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* licensing@OpenSSL.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
/*
* Copyright 2003 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#include <strings.h>
#include <stdlib.h>
#include <assert.h>
#include <openssl/crypto.h>
#include <openssl/err.h>
#include <openssl/x509.h>
#include <openssl/pem.h>
#include <openssl/pkcs12.h>
#include "p12lib.h"
/*
* OpenSSL provides a framework for pushing error codes onto a stack.
* When an error occurs, the consumer may use the framework to
* pop the errors off the stack and provide a trace of where the
* errors occurred.
*
* Our PKCS12 code plugs into this framework by calling
* ERR_load_SUNW_strings(). To push an error (which by the way, consists
* of a function code and an error code) onto the stack our PKCS12 code
* calls SUNWerr().
*
* Consumers of our PKCS12 code can then call the OpenSSL error routines
* when an error occurs and retrieve the stack of errors.
*/
#ifndef OPENSSL_NO_ERR
/* Function codes and their matching strings */
static ERR_STRING_DATA SUNW_str_functs[] = {
{ ERR_PACK(0, SUNW_F_USE_X509CERT, 0), "sunw_use_x509cert" },
{ ERR_PACK(0, SUNW_F_USE_PKEY, 0), "sunw_use_pkey" },
{ ERR_PACK(0, SUNW_F_USE_TASTORE, 0), "sunw_use_tastore" },
{ ERR_PACK(0, SUNW_F_USE_CERTFILE, 0), "sunw_p12_use_certfile" },
{ ERR_PACK(0, SUNW_F_USE_KEYFILE, 0), "sunw_p12_use_keyfile" },
{ ERR_PACK(0, SUNW_F_USE_TRUSTFILE, 0), "sunw_p12_use_trustfile" },
{ ERR_PACK(0, SUNW_F_READ_FILE, 0), "p12_read_file" },
{ ERR_PACK(0, SUNW_F_DOPARSE, 0), "p12_doparse" },
{ ERR_PACK(0, SUNW_F_PKCS12_PARSE, 0), "sunw_PKCS12_parse" },
{ ERR_PACK(0, SUNW_F_PKCS12_CONTENTS, 0), "sunw_PKCS12_contents" },
{ ERR_PACK(0, SUNW_F_PARSE_ONE_BAG, 0), "parse_one_bag" },
{ ERR_PACK(0, SUNW_F_PKCS12_CREATE, 0), "sunw_PKCS12_create" },
{ ERR_PACK(0, SUNW_F_SPLIT_CERTS, 0), "sunw_split_certs" },
{ ERR_PACK(0, SUNW_F_FIND_LOCALKEYID, 0), "sunw_find_localkeyid" },
{ ERR_PACK(0, SUNW_F_SET_LOCALKEYID, 0), "sunw_set_localkeyid" },
{ ERR_PACK(0, SUNW_F_GET_LOCALKEYID, 0), "sunw_get_localkeyid" },
{ ERR_PACK(0, SUNW_F_SET_FNAME, 0), "sunw_set_fname" },
{ ERR_PACK(0, SUNW_F_GET_PKEY_FNAME, 0), "sunw_get_pkey_fname" },
{ ERR_PACK(0, SUNW_F_APPEND_KEYS, 0), "sunw_append_keys" },
{ ERR_PACK(0, SUNW_F_PEM_CONTENTS, 0), "sunw_PEM_contents" },
{ ERR_PACK(0, SUNW_F_PEM_INFO, 0), "pem_info" },
{ ERR_PACK(0, SUNW_F_ASC2BMPSTRING, 0), "asc2bmpstring" },
{ ERR_PACK(0, SUNW_F_UTF82ASCSTR, 0), "utf82ascstr" },
{ ERR_PACK(0, SUNW_F_FINDATTR, 0), "findattr" },
{ ERR_PACK(0, SUNW_F_TYPE2ATTRIB, 0), "type2attrib" },
{ ERR_PACK(0, SUNW_F_MOVE_CERTS, 0), "move_certs" },
{ ERR_PACK(0, SUNW_F_FIND_FNAME, 0), "sunw_find_fname" },
{ ERR_PACK(0, SUNW_F_PARSE_OUTER, 0), "parse_outer" },
{ ERR_PACK(0, SUNW_F_CHECKFILE, 0), "checkfile" },
{ 0, NULL }
};
/* Error codes and their matching strings */
static ERR_STRING_DATA SUNW_str_reasons[] = {
{ SUNW_R_INVALID_ARG, "invalid argument" },
{ SUNW_R_MEMORY_FAILURE, "memory failure" },
{ SUNW_R_MAC_VERIFY_FAILURE, "mac verify failure" },
{ SUNW_R_MAC_CREATE_FAILURE, "mac create failure" },
{ SUNW_R_BAD_FILETYPE, "bad file type" },
{ SUNW_R_BAD_PKEY, "bad or missing private key" },
{ SUNW_R_BAD_PKEYTYPE, "unsupported key type" },
{ SUNW_R_PKEY_READ_ERR, "unable to read private key" },
{ SUNW_R_NO_TRUST_ANCHOR, "no trust anchors found" },
{ SUNW_R_READ_TRUST_ERR, "unable to read trust anchor" },
{ SUNW_R_ADD_TRUST_ERR, "unable to add trust anchor" },
{ SUNW_R_PKCS12_PARSE_ERR, "PKCS12 parse error" },
{ SUNW_R_PKCS12_CREATE_ERR, "PKCS12 create error" },
{ SUNW_R_BAD_CERTTYPE, "unsupported certificate type" },
{ SUNW_R_PARSE_CERT_ERR, "error parsing PKCS12 certificate" },
{ SUNW_R_PARSE_BAG_ERR, "error parsing PKCS12 bag" },
{ SUNW_R_MAKE_BAG_ERR, "error making PKCS12 bag" },
{ SUNW_R_BAD_LKID, "bad localKeyID format" },
{ SUNW_R_SET_LKID_ERR, "error setting localKeyID" },
{ SUNW_R_BAD_FNAME, "bad friendlyName format" },
{ SUNW_R_SET_FNAME_ERR, "error setting friendlyName" },
{ SUNW_R_BAD_TRUST, "bad or missing trust anchor" },
{ SUNW_R_BAD_BAGTYPE, "unsupported bag type" },
{ SUNW_R_CERT_ERR, "certificate error" },
{ SUNW_R_PKEY_ERR, "private key error" },
{ SUNW_R_READ_ERR, "error reading file" },
{ SUNW_R_ADD_ATTR_ERR, "error adding attribute" },
{ SUNW_R_STR_CONVERT_ERR, "error converting string" },
{ SUNW_R_PKCS12_EMPTY_ERR, "empty PKCS12 structure" },
{ SUNW_R_PASSWORD_ERR, "bad password" },
{ 0, NULL }
};
/*
* The library name that our module will be known as. This name
* may be retrieved via OpenSSLs error APIs.
*/
static ERR_STRING_DATA SUNW_lib_name[] = {
{ 0, SUNW_LIB_NAME },
{ 0, NULL }
};
#endif
/*
* The value of this variable (initialized by a call to
* ERR_load_SUNW_strings()) is what identifies our errors
* to OpenSSL as being ours.
*/
static int SUNW_lib_error_code = 0;
/* local routines */
static int parse_pkcs12(PKCS12 *, const char *, int, char *, int, char *,
EVP_PKEY **, X509 **, STACK_OF(X509) **);
static int pem_info(FILE *, pem_password_cb, void *,
STACK_OF(EVP_PKEY) **, STACK_OF(X509) **);
static int parse_outer(PKCS12 *, const char *, STACK_OF(EVP_PKEY) *,
STACK_OF(X509) *);
static int parse_all_bags(STACK_OF(PKCS12_SAFEBAG) *, const char *,
STACK_OF(EVP_PKEY) *, STACK_OF(X509) *);
static int parse_one_bag(PKCS12_SAFEBAG *, const char *,
STACK_OF(EVP_PKEY) *, STACK_OF(X509) *);
static X509_ATTRIBUTE *type2attrib(ASN1_TYPE *, int);
static ASN1_TYPE *attrib2type(X509_ATTRIBUTE *);
static uchar_t *utf82ascstr(ASN1_UTF8STRING *);
static ASN1_BMPSTRING *asc2bmpstring(const char *, int);
static int find_attr_by_nid(STACK_OF(X509_ATTRIBUTE) *, int);
static int find_attr(int, ASN1_STRING *, STACK_OF(EVP_PKEY) *,
EVP_PKEY **, STACK_OF(X509) *, X509 **);
static chk_errs_t check_time(chk_actions_t, X509 *);
static int get_key_cert(int, STACK_OF(EVP_PKEY) *, EVP_PKEY **,
STACK_OF(X509) *, X509 **cert);
static int move_certs(STACK_OF(X509) *, STACK_OF(X509) *);
static int sunw_append_keys(STACK_OF(EVP_PKEY) *,
STACK_OF(EVP_PKEY) *);
static int set_results(STACK_OF(EVP_PKEY) **,
STACK_OF(EVP_PKEY) **, STACK_OF(X509) **, STACK_OF(X509) **,
STACK_OF(X509) **, STACK_OF(X509) **,
STACK_OF(EVP_PKEY) **, STACK_OF(EVP_PKEY) **);
/*
* ----------------------------------------------------------------------------
* Public routines
* ----------------------------------------------------------------------------
*/
/*
* sunw_PKCS12_parse - Parse a PKCS12 structure and break it into its parts.
*
* Parse and decrypt a PKCS#12 structure returning user key, user cert and/or
* other (CA) certs. Note either ca should be NULL, *ca should be NULL,
* or it should point to a valid STACK_OF(X509) structure. pkey and cert can
* be passed uninitialized.
*
* Arguments:
* p12 - Structure with pkcs12 info to be parsed
* pass - Pass phrase for the private key (possibly empty) or NULL if
* there is none.
* matchty - Info about which certs/keys to return if many are in the file.
* keyid - If private key localkeyids friendlynames are to match a
* predetermined value, the value to match. This value should
* be an octet string.
* keyid_len- Length of the keyid byte string.
* name_str - If friendlynames are to match a predetermined value, the value
* to match. This value should be a NULL terminated string.
* pkey - Points to location pointing to the private key returned.
* cert - Points to locaiton which points to the client cert returned
* ca - Points to location that points to a stack of 'certificate
* authority' certs/trust anchors.
*
* Match based on the value of 'matchty' and the contents of 'keyid'
* and/or 'name_str', as appropriate. Go through the lists of certs and
* private keys which were taken from the pkcs12 structure, looking for
* matches of the requested type. This function only searches the lists of
* matching private keys and client certificates. Kinds of matches allowed,
* and the order in which they will be checked, are:
*
* 1) Find the key and/or cert whose localkeyid attributes matches
* 'keyid'.
* 2) Find the key and/or cert whose friendlyname attributes matches
* 'name_str'
* 3) Return the first matching key/cert pair found.
* 4) Return the last matching key/cert pair found.
* 5) Return whatever cert and/or key are available, even unmatching.
*
* Append to the CA list, the certs which do not have matching private
* keys and which were not selected.
*
* If none of the bits are set, no client certs or private keys will be
* returned. CA (aka trust anchor) certs can be.
*
* Notes: If #3 is selected, then #4 will never occur. CA certs will be
* selected after a cert/key pairs are isolated.
*
* Returns:
* < 0 - An error returned. Call ERR_get_error() to get errors information.
* Where possible, memory has been freed.
* >= 0 - Objects were found and returned. Which objects are indicated by
* which bits are set (FOUND_PKEY, FOUND_CERT, FOUND_CA_CERTS).
*/
int
sunw_PKCS12_parse(PKCS12 *p12, const char *pass, int matchty, char *keyid,
int keyid_len, char *name_str, EVP_PKEY **pkey, X509 **cert,
STACK_OF(X509) **ca)
{
boolean_t ca_supplied;
int retval = -1;
/* If NULL PKCS12 structure, this is an error */
if (p12 == NULL) {
SUNWerr(SUNW_F_PKCS12_PARSE, SUNW_R_INVALID_ARG);
return (-1);
}
/* Set up arguments.... These will be allocated if needed */
if (pkey)
*pkey = NULL;
if (cert)
*cert = NULL;
/*
* If there is already a ca list, use it. Otherwise, allocate one
* and free is later if an error occurs or whatever.)
*/
ca_supplied = (ca != NULL && *ca != NULL);
if (ca != NULL && *ca == NULL) {
if ((*ca = sk_X509_new_null()) == NULL) {
SUNWerr(SUNW_F_PKCS12_PARSE, SUNW_R_MEMORY_FAILURE);
return (-1);
}
}
/*
* If password is zero length or NULL then try verifying both cases
* to determine which password is correct. The reason for this is that
* under PKCS#12 password based encryption no password and a zero
* length password are two different things. If the password has a
* non-zero length and is not NULL then call PKCS12_verify_mac() with
* a length of '-1' and let it use strlen() to figure out the length
* of the password.
*/
/* Check the mac */
if (pass == NULL || *pass == '\0') {
if (PKCS12_verify_mac(p12, NULL, 0))
pass = NULL;
else if (PKCS12_verify_mac(p12, "", 0))
pass = "";
else {
SUNWerr(SUNW_F_PKCS12_PARSE,
SUNW_R_MAC_VERIFY_FAILURE);
goto err;
}
} else if (PKCS12_verify_mac(p12, pass, -1) == 0) {
SUNWerr(SUNW_F_PKCS12_PARSE, SUNW_R_MAC_VERIFY_FAILURE);
goto err;
}
retval = parse_pkcs12(p12, pass, matchty, keyid, keyid_len,
name_str, pkey, cert, ca);
if (retval < 0) {
SUNWerr(SUNW_F_PKCS12_PARSE, SUNW_R_PKCS12_PARSE_ERR);
goto err;
}
return (retval);
err:
if (pkey && *pkey) {
sunw_evp_pkey_free(*pkey);
}
if (cert && *cert)
X509_free(*cert);
if (ca_supplied == B_FALSE && ca != NULL)
sk_X509_pop_free(*ca, X509_free);
return (-1);
}
/*
* sunw_PEM_contents() parses a PEM file and returns component parts found
*
* Parse and decrypt a PEM file, returning any user keys and certs.
*
* There are some limits to this function. It will ignore the following:
* - certificates identified by "TRUSTED CERTIFICATE"
* - CERTIFICATE REQUEST and NEW CERTIFICATE REQUEST records.
* - X509 CRL
* - DH PARAMETERS
* - DSA PARAMETERS
* - Any PUBLIC KEY
* - PKCS7
* - PRIVATE KEY or ENCRYPTED PRIVATE KEY (PKCS 8)
*
* Arguments:
* fp - File pointer for file containing PEM data.
* pass - Pass phrase for the private key or NULL if there is none.
* pkeys - Points to address of a stack of private keys to return.
* certs - Points to address of a stack of client certs to return.
*
* The pointers to stacks should either be NULL or their contents should
* either be NULL or should point to a valid STACK_OF(X509) structure.
* If the stacks contain information, corresponding information from the
* file will be appended to the original contents.
*
* Note: Client certs and and their matching private keys will be in any
* order.
*
* Certs which have no matching private key are assumed to be ca certs.
*
* Returns:
* < 0 - An error returned. Call ERR_get_error() to get errors information.
* Where possible, memory has been freed.
* >= 0 - Objects were found and returned. Which objects are indicated by
* which bits are set (FOUND_PKEY, FOUND_CERT)
*/
int sunw_PEM_contents(FILE *fp, pem_password_cb *cb, void *userdata,
STACK_OF(EVP_PKEY) **pkey, STACK_OF(X509) **certs)
{
STACK_OF(EVP_PKEY) *work_kl = NULL;
STACK_OF(X509) *work_ca = NULL;
int retval = -1;
/*
* Allocate the working stacks for private key and for the
* ca certs.
*/
if ((work_kl = sk_EVP_PKEY_new_null()) == NULL) {
SUNWerr(SUNW_F_PEM_CONTENTS, SUNW_R_MEMORY_FAILURE);
goto cleanup;
}
if ((work_ca = sk_X509_new_null()) == NULL) {
SUNWerr(SUNW_F_PEM_CONTENTS, SUNW_R_MEMORY_FAILURE);
goto cleanup;
}
/* Error strings are set within the following. */
if (pem_info(fp, cb, userdata, &work_kl, &work_ca) <= 0) {
goto cleanup;
}
/* on error, set_results() returns an error on the stack */
retval = set_results(pkey, &work_kl, certs, &work_ca, NULL, NULL, NULL,
NULL);
cleanup:
if (work_kl != NULL) {
sk_EVP_PKEY_pop_free(work_kl, sunw_evp_pkey_free);
}
if (work_ca != NULL)
sk_X509_pop_free(work_ca, X509_free);
return (retval);
}
/*
* sunw_PKCS12_contents() parses a pkcs#12 structure and returns component
* parts found, without evaluation.
*
* Parse and decrypt a PKCS#12 structure returning any user keys and/or
* various certs. Note these should either be NULL, *whatever should
* be NULL, or it should point to a valid STACK_OF(X509) structure.
*
* Arguments:
* p12 - Structure with pkcs12 info to be parsed
* pass - Pass phrase for the private key and entire pkcs12 wad (possibly
* empty) or NULL if there is none.
* pkeys - Points to address of a stack of private keys to return.
* certs - Points to address of a stack of client certs return.
*
* Note: The certs and keys being returned are in random order.
*
* Returns:
* < 0 - An error returned. Call ERR_get_error() to get errors information.
* Where possible, memory has been freed.
* >= 0 - Objects were found and returned. Which objects are indicated by
* which bits are set (FOUND_PKEY or FOUND_CERT)
*/
int
sunw_PKCS12_contents(PKCS12 *p12, const char *pass, STACK_OF(EVP_PKEY) **pkey,
STACK_OF(X509) **certs)
{
STACK_OF(EVP_PKEY) *work_kl = NULL;
STACK_OF(X509) *work_ca = NULL;
int retval = -1;
/*
* Allocate the working stacks for private key and for the
* ca certs.
*/
if ((work_kl = sk_EVP_PKEY_new_null()) == NULL) {
SUNWerr(SUNW_F_PKCS12_CONTENTS, SUNW_R_MEMORY_FAILURE);
goto cleanup;
}
if ((work_ca = sk_X509_new_null()) == NULL) {
SUNWerr(SUNW_F_PKCS12_CONTENTS, SUNW_R_MEMORY_FAILURE);
goto cleanup;
}
if (parse_outer(p12, pass, work_kl, work_ca) == 0) {
/*
* Error already on stack
*/
goto cleanup;
}
/* on error, set_results() returns an error on the stack */
retval = set_results(pkey, &work_kl, certs, &work_ca, NULL,
NULL, NULL, NULL);
cleanup:
if (work_kl != NULL) {
sk_EVP_PKEY_pop_free(work_kl, sunw_evp_pkey_free);
}
return (retval);
}
/*
* sunw_split_certs() - Given a list of certs and a list of private keys,
* moves certs which match one of the keys to a different stack.
*
* Arguments:
* allkeys - Points to a stack of private keys to search.
* allcerts - Points to a stack of certs to be searched.
* keycerts - Points to address of a stack of certs with matching private
* keys. They are moved from 'allcerts'. This may not be NULL
* when called. If *keycerts is NULL upon entry, a new stack will
* be allocated. Otherwise, it must be a valid STACK_OF(509).
* nocerts - Points to address of a stack for keys which have no matching
* certs. Keys are moved from 'allkeys' here when they have no
* matching certs. If this is NULL, matchless keys will be
* discarded.
*
* Notes: If an error occurs while moving certs, the cert being move may be
* lost. 'keycerts' may only contain part of the matching certs. The number
* of certs successfully moved can be found by checking sk_X509_num(keycerts).
*
* If there is a key which does not have a matching cert, it is moved to
* the list nocerts.
*
* If all certs are removed from 'certs' and/or 'pkeys', it will be the
* caller's responsibility to free the empty stacks.
*
* Returns:
* < 0 - An error returned. Call ERR_get_error() to get errors information.
* Where possible, memory has been freed.
* >= 0 - The number of certs moved from 'cert' to 'pkcerts'.
*/
int
sunw_split_certs(STACK_OF(EVP_PKEY) *allkeys, STACK_OF(X509) *allcerts,
STACK_OF(X509) **keycerts, STACK_OF(EVP_PKEY) **nocerts)
{
STACK_OF(X509) *matching;
STACK_OF(EVP_PKEY) *nomatch;
EVP_PKEY *tmpkey;
X509 *tmpcert;
int count = 0;
int found;
int res;
int i;
int k;
*keycerts = NULL;
if (nocerts != NULL)
*nocerts = NULL;
nomatch = NULL;
if ((matching = sk_X509_new_null()) == NULL) {
SUNWerr(SUNW_F_SPLIT_CERTS, SUNW_R_MEMORY_FAILURE);
return (-1);
}
*keycerts = matching;
k = 0;
while (k < sk_EVP_PKEY_num(allkeys)) {
found = 0;
tmpkey = sk_EVP_PKEY_value(allkeys, k);
for (i = 0; i < sk_X509_num(allcerts); i++) {
tmpcert = sk_X509_value(allcerts, i);
res = X509_check_private_key(tmpcert, tmpkey);
if (res != 0) {
count++;
found = 1;
tmpcert = sk_X509_delete(allcerts, i);
if (sk_X509_push(matching, tmpcert) == 0) {
X509_free(tmpcert);
SUNWerr(SUNW_F_SPLIT_CERTS,
SUNW_R_MEMORY_FAILURE);
return (-1);
}
break;
}
}
if (found != 0) {
/*
* Found a match - keep the key & check out the next
* one.
*/
k++;
} else {
/*
* No cert matching this key. Move the key if
* possible or discard it. Don't increment the
* index.
*/
if (nocerts == NULL) {
tmpkey = sk_EVP_PKEY_delete(allkeys, k);
sunw_evp_pkey_free(tmpkey);
} else {
if (*nocerts == NULL) {
nomatch = sk_EVP_PKEY_new_null();
if (nomatch == NULL) {
SUNWerr(SUNW_F_SPLIT_CERTS,
SUNW_R_MEMORY_FAILURE);
return (-1);
}
*nocerts = nomatch;
}
tmpkey = sk_EVP_PKEY_delete(allkeys, k);
if (sk_EVP_PKEY_push(nomatch, tmpkey) == 0) {
sunw_evp_pkey_free(tmpkey);
SUNWerr(SUNW_F_SPLIT_CERTS,
SUNW_R_MEMORY_FAILURE);
return (-1);
}
}
}
}
return (count);
}
/*
* sunw_PKCS12_create() creates a pkcs#12 structure and given component parts.
*
* Given one or more of user private key, user cert and/or other (CA) certs,
* return an encrypted PKCS12 structure containing them.
*
* Arguments:
* pass - Pass phrase for the pkcs12 structure and private key (possibly
* empty) or NULL if there is none. It will be used to encrypt
* both the private key(s) and as the pass phrase for the whole
* pkcs12 wad.
* pkeys - Points to stack of private keys.
* certs - Points to stack of client (public ke) certs
* cacerts - Points to stack of 'certificate authority' certs (or trust
* anchors).
*
* Note that any of these may be NULL.
*
* Returns:
* NULL - An error occurred.
* != NULL - Address of PKCS12 structure. The user is responsible for
* freeing the memory when done.
*/
PKCS12 *
sunw_PKCS12_create(const char *pass, STACK_OF(EVP_PKEY) *pkeys,
STACK_OF(X509) *certs, STACK_OF(X509) *cacerts)
{
int nid_cert = NID_pbe_WithSHA1And40BitRC2_CBC;
int nid_key = NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
STACK_OF(PKCS12_SAFEBAG) *bags = NULL;
STACK_OF(PKCS7) *safes = NULL;
PKCS12_SAFEBAG *bag = NULL;
PKCS8_PRIV_KEY_INFO *p8 = NULL;
EVP_PKEY *pkey = NULL;
PKCS12 *ret_p12 = NULL;
PKCS12 *p12 = NULL;
PKCS7 *authsafe = NULL;
X509 *cert = NULL;
uchar_t *str = NULL;
int certs_there = 0;
int keys_there = 0;
int len;
int i;
if ((safes = sk_PKCS7_new_null()) == NULL) {
SUNWerr(SUNW_F_PKCS12_CREATE, SUNW_R_MEMORY_FAILURE);
return (NULL);
}
if ((bags = sk_PKCS12_SAFEBAG_new_null()) == NULL) {
SUNWerr(SUNW_F_PKCS12_CREATE, SUNW_R_MEMORY_FAILURE);
goto err_ret;
}
if (certs != NULL && sk_X509_num(certs) > 0) {
for (i = 0; i < sk_X509_num(certs); i++) {
cert = sk_X509_value(certs, i);
/* Add user certificate */
if ((bag = M_PKCS12_x5092certbag(cert)) == NULL) {
SUNWerr(SUNW_F_PKCS12_CREATE, SUNW_R_CERT_ERR);
goto err_ret;
}
if (cert->aux != NULL && cert->aux->alias != NULL &&
cert->aux->alias->type == V_ASN1_UTF8STRING) {
str = utf82ascstr(cert->aux->alias);
if (str == NULL) {
/*
* Error already on stack
*/
goto err_ret;
}
if (PKCS12_add_friendlyname_asc(bag,
(char const *) str,
strlen((char const *) str)) == 0) {
SUNWerr(SUNW_F_PKCS12_CREATE,
SUNW_R_ADD_ATTR_ERR);
goto err_ret;
}
}
if (cert->aux != NULL && cert->aux->keyid != NULL &&
cert->aux->keyid->type == V_ASN1_OCTET_STRING) {
str = cert->aux->keyid->data;
len = cert->aux->keyid->length;
if (str != NULL &&
PKCS12_add_localkeyid(bag, str, len) == 0) {
SUNWerr(SUNW_F_PKCS12_CREATE,
SUNW_R_ADD_ATTR_ERR);
goto err_ret;
}
}
if (sk_PKCS12_SAFEBAG_push(bags, bag) == 0) {
SUNWerr(SUNW_F_PKCS12_CREATE,
SUNW_R_MEMORY_FAILURE);
goto err_ret;
}
certs_there++;
bag = NULL;
}
}
if (cacerts != NULL && sk_X509_num(cacerts) > 0) {
/* Put all certs in structure */
for (i = 0; i < sk_X509_num(cacerts); i++) {
cert = sk_X509_value(cacerts, i);
if ((bag = M_PKCS12_x5092certbag(cert)) == NULL) {
SUNWerr(SUNW_F_PKCS12_CREATE, SUNW_R_CERT_ERR);
goto err_ret;
}
if (cert->aux != NULL && cert->aux->alias != NULL &&
cert->aux->alias->type == V_ASN1_UTF8STRING) {
str = utf82ascstr(cert->aux->alias);
if (str == NULL) {
/*
* Error already on stack
*/
goto err_ret;
}
if (PKCS12_add_friendlyname_asc(
bag, (char const *) str,
strlen((char const *) str)) == 0) {
SUNWerr(SUNW_F_PKCS12_CREATE,
SUNW_R_ADD_ATTR_ERR);
goto err_ret;
}
}
if (cert->aux != NULL && cert->aux->keyid != NULL &&
cert->aux->keyid->type == V_ASN1_OCTET_STRING) {
str = cert->aux->keyid->data;
len = cert->aux->keyid->length;
if (str != NULL &&
PKCS12_add_localkeyid(bag, str, len) == 0) {
SUNWerr(SUNW_F_PKCS12_CREATE,
SUNW_R_ADD_ATTR_ERR);
goto err_ret;
}
}
if (sk_PKCS12_SAFEBAG_push(bags, bag) == 0) {
SUNWerr(SUNW_F_PKCS12_CREATE,
SUNW_R_MEMORY_FAILURE);
goto err_ret;
}
certs_there++;
bag = NULL;
}
}
if (certs != NULL || cacerts != NULL && certs_there) {
/* Turn certbags into encrypted authsafe */
authsafe = PKCS12_pack_p7encdata(nid_cert, pass, -1,
NULL, 0, PKCS12_DEFAULT_ITER, bags);
if (authsafe == NULL) {
SUNWerr(SUNW_F_PKCS12_CREATE, SUNW_R_CERT_ERR);
goto err_ret;
}
sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
bags = NULL;
if (sk_PKCS7_push(safes, authsafe) == 0) {
SUNWerr(SUNW_F_PKCS12_CREATE, SUNW_R_MEMORY_FAILURE);
goto err_ret;
}
authsafe = NULL;
}
if (pkeys != NULL && sk_EVP_PKEY_num(pkeys) > 0) {
if (bags == NULL &&
(bags = sk_PKCS12_SAFEBAG_new_null()) == NULL) {
SUNWerr(SUNW_F_PKCS12_CREATE, SUNW_R_MEMORY_FAILURE);
goto err_ret;
}
for (i = 0; i < sk_EVP_PKEY_num(pkeys); i++) {
pkey = sk_EVP_PKEY_value(pkeys, i);
/* Make a shrouded key bag */
if ((p8 = EVP_PKEY2PKCS8(pkey)) == NULL) {
SUNWerr(SUNW_F_PKCS12_CREATE, SUNW_R_PKEY_ERR);
goto err_ret;
}
bag = PKCS12_MAKE_SHKEYBAG(nid_key, pass, -1, NULL, 0,
PKCS12_DEFAULT_ITER, p8);
if (bag == NULL) {
SUNWerr(SUNW_F_PKCS12_CREATE,
SUNW_R_MAKE_BAG_ERR);
goto err_ret;
}
PKCS8_PRIV_KEY_INFO_free(p8);
p8 = NULL;
len = sunw_get_pkey_fname(GETDO_COPY, pkey,
(char **)&str);
if (str != NULL) {
if (PKCS12_add_friendlyname_asc(bag,
(const char *)str, len) == 0) {
SUNWerr(SUNW_F_PKCS12_CREATE,
SUNW_R_ADD_ATTR_ERR);
goto err_ret;
}
}
str = NULL;
len = sunw_get_pkey_localkeyid(GETDO_COPY, pkey,
(char **)&str, &len);
if (str != NULL) {
if (PKCS12_add_localkeyid(bag, str, len) == 0) {
SUNWerr(SUNW_F_PKCS12_CREATE,
SUNW_R_ADD_ATTR_ERR);
goto err_ret;
}
}
str = NULL;
if (sk_PKCS12_SAFEBAG_push(bags, bag) == 0) {
SUNWerr(SUNW_F_PKCS12_CREATE,
SUNW_R_MEMORY_FAILURE);
goto err_ret;
}
keys_there++;
bag = NULL;
}
if (keys_there) {
/* Turn into unencrypted authsafe */
authsafe = PKCS12_pack_p7data(bags);
if (authsafe == NULL) {
SUNWerr(SUNW_F_PKCS12_CREATE,
SUNW_R_PKCS12_CREATE_ERR);
goto err_ret;
}
sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
bags = NULL;
if (sk_PKCS7_push(safes, authsafe) == 0) {
SUNWerr(SUNW_F_PKCS12_CREATE,
SUNW_R_MEMORY_FAILURE);
}
authsafe = NULL;
}
}
if (certs_there == 0 && keys_there == 0) {
SUNWerr(SUNW_F_PKCS12_CREATE, SUNW_R_PKCS12_EMPTY_ERR);
goto err_ret;
}
if ((p12 = PKCS12_init(NID_pkcs7_data)) == NULL) {
SUNWerr(SUNW_F_PKCS12_CREATE, SUNW_R_PKCS12_CREATE_ERR);
goto err_ret;
}
/*
* Note that safes is copied by the following. Therefore, it needs
* to be freed whether or not the following succeeds.
*/
if (M_PKCS12_pack_authsafes(p12, safes) == 0) {
SUNWerr(SUNW_F_PKCS12_CREATE, SUNW_R_PKCS12_CREATE_ERR);
goto err_ret;
}
if (PKCS12_set_mac(p12, pass, -1, NULL, 0, 2048, NULL) == 0) {
SUNWerr(SUNW_F_PKCS12_CREATE, SUNW_R_MAC_CREATE_FAILURE);
goto err_ret;
}
ret_p12 = p12;
p12 = NULL;
/* Fallthrough is intentional */
err_ret:
if (str != NULL)
free(str);
if (p8 != NULL)
PKCS8_PRIV_KEY_INFO_free(p8);
if (bag != NULL)
PKCS12_SAFEBAG_free(bag);
if (bags != NULL)
sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
if (authsafe != NULL)
PKCS7_free(authsafe);
if (safes != NULL)
sk_PKCS7_pop_free(safes, PKCS7_free);
if (p12 != NULL)
PKCS12_free(p12);
return (ret_p12);
}
/*
* sunw_evp_pkey_free() Given an EVP_PKEY structure, free any attributes
* that are attached. Then free the EVP_PKEY itself.
*
* This is a replacement for EVP_PKEY_free() for the sunw stuff.
* It should be used in places where EVP_PKEY_free would be used,
* including calls to sk_EVP_PKEY_pop_free().
*
* Arguments:
* pkey - Entry which potentially has attributes to be freed.
*
* Returns:
* None.
*/
void
sunw_evp_pkey_free(EVP_PKEY *pkey)
{
if (pkey != NULL) {
if (pkey->attributes != NULL) {
sk_X509_ATTRIBUTE_pop_free(pkey->attributes,
X509_ATTRIBUTE_free);
pkey->attributes = NULL;
}
EVP_PKEY_free(pkey);
}
}
/*
* sunw_set_localkeyid() sets the localkeyid in a cert, a private key or
* both. Any existing localkeyid will be discarded.
*
* Arguments:
* keyid_str- A byte string with the localkeyid to set
* keyid_len- Length of the keyid byte string.
* pkey - Points to a private key to set the keyidstr in.
* cert - Points to a cert to set the keyidstr in.
*
* Note that setting a keyid into a cert which will not be written out as
* a PKCS12 cert is pointless since it will be lost.
*
* Returns:
* 0 - Success.
* < 0 - An error occurred. It was probably an error in allocating
* memory. The error will be set in the error stack. Call
* ERR_get_error() to get specific information.
*/
int
sunw_set_localkeyid(const char *keyid_str, int keyid_len, EVP_PKEY *pkey,
X509 *cert)
{
X509_ATTRIBUTE *attr = NULL;
ASN1_STRING *str = NULL;
ASN1_TYPE *keyid = NULL;
int retval = -1;
int i;
if (cert != NULL) {
if (X509_keyid_set1(cert, (uchar_t *)keyid_str, keyid_len)
== 0) {
SUNWerr(SUNW_F_SET_LOCALKEYID, SUNW_R_SET_LKID_ERR);
goto cleanup;
}
}
if (pkey != NULL) {
str = (ASN1_STRING *)M_ASN1_OCTET_STRING_new();
if (str == NULL ||
M_ASN1_OCTET_STRING_set(str, keyid_str, keyid_len) == 0 ||
(keyid = ASN1_TYPE_new()) == NULL) {
SUNWerr(SUNW_F_SET_LOCALKEYID, SUNW_R_MEMORY_FAILURE);
goto cleanup;
}
ASN1_TYPE_set(keyid, V_ASN1_OCTET_STRING, str);
str = NULL;
attr = type2attrib(keyid, NID_localKeyID);
if (attr == NULL) {
/*
* Error already on stack
*/
goto cleanup;
}
keyid = NULL;
if (pkey->attributes == NULL) {
pkey->attributes = sk_X509_ATTRIBUTE_new_null();
if (pkey->attributes == NULL) {
SUNWerr(SUNW_F_SET_LOCALKEYID,
SUNW_R_MEMORY_FAILURE);
goto cleanup;
}
} else {
i = find_attr_by_nid(pkey->attributes, NID_localKeyID);
if (i >= 0)
sk_X509_ATTRIBUTE_delete(pkey->attributes, i);
}
if (sk_X509_ATTRIBUTE_push(pkey->attributes, attr) == 0) {
SUNWerr(SUNW_F_SET_LOCALKEYID, SUNW_R_MEMORY_FAILURE);
goto cleanup;
}
attr = NULL;
}
retval = 0;
cleanup:
if (str != NULL)
ASN1_STRING_free(str);
if (keyid != NULL)
ASN1_TYPE_free(keyid);
if (attr != NULL)
X509_ATTRIBUTE_free(attr);
return (retval);
}
/*
* sunw_get_pkey_localkeyid() gets the localkeyid from a private key. It can
* optionally remove the value found.
*
* Arguments:
* dowhat - What to do with the attributes (remove them or copy them).
* pkey - Points to a private key to set the keyidstr in.
* keyid_str- Points to a location which will receive the pointer to
* a byte string containing the binary localkeyid. Note that
* this is a copy, and the caller must free it.
* keyid_len- Length of keyid_str.
*
* Returns:
* >= 0 - The number of characters in the keyid returned.
* < 0 - An error occurred. It was probably an error in allocating
* memory. The error will be set in the error stack. Call
* ERR_get_error() to get specific information.
*/
int
sunw_get_pkey_localkeyid(getdo_actions_t dowhat, EVP_PKEY *pkey,
char **keyid_str, int *keyid_len)
{
X509_ATTRIBUTE *attr = NULL;
ASN1_OCTET_STRING *str = NULL;
ASN1_TYPE *ty = NULL;
int len = 0;
int i;
if (keyid_str != NULL)
*keyid_str = NULL;
if (keyid_len != NULL)
*keyid_len = 0;
if (pkey == NULL || pkey->attributes == NULL) {
return (0);
}
if ((i = find_attr_by_nid(pkey->attributes, NID_localKeyID)) < 0) {
return (0);
}
attr = sk_X509_ATTRIBUTE_value(pkey->attributes, i);
if ((ty = attrib2type(attr)) == NULL ||
ty->type != V_ASN1_OCTET_STRING) {
return (0);
}
if (dowhat == GETDO_DEL) {
attr = sk_X509_ATTRIBUTE_delete(pkey->attributes, i);
if (attr != NULL)
X509_ATTRIBUTE_free(attr);
return (0);
}
str = ty->value.octet_string;
len = str->length;
if ((*keyid_str = malloc(len)) == NULL) {
SUNWerr(SUNW_F_GET_LOCALKEYID, SUNW_R_MEMORY_FAILURE);
return (-1);
}
(void) memcpy(*keyid_str, str->data, len);
*keyid_len = len;
return (len);
}
/*
* sunw_get_pkey_fname() gets the friendlyName from a private key. It can
* optionally remove the value found.
*
* Arguments:
* dowhat - What to do with the attributes (remove them or copy them).
* pkey - Points to a private key to get the frientlyname from
* fname - Points to a location which will receive the pointer to a
* byte string with the ASCII friendlyname
*
* Returns:
* >= 0 - The number of characters in the frienlyname returned.
* < 0 - An error occurred. It was probably an error in allocating
* memory. The error will be set in the error stack. Call
* ERR_get_error() to get specific information.
*/
int
sunw_get_pkey_fname(getdo_actions_t dowhat, EVP_PKEY *pkey, char **fname)
{
X509_ATTRIBUTE *attr = NULL;
ASN1_BMPSTRING *str = NULL;
ASN1_TYPE *ty = NULL;
int len = 0;
int i;
if (fname != NULL)
*fname = NULL;
if (pkey == NULL || pkey->attributes == NULL) {
return (0);
}
if ((i = find_attr_by_nid(pkey->attributes, NID_friendlyName)) < 0) {
return (0);
}
attr = sk_X509_ATTRIBUTE_value(pkey->attributes, i);
if ((ty = attrib2type(attr)) == NULL ||
ty->type != V_ASN1_BMPSTRING) {
return (0);
}
if (dowhat == GETDO_DEL) {
attr = sk_X509_ATTRIBUTE_delete(pkey->attributes, i);
if (attr != NULL)
X509_ATTRIBUTE_free(attr);
return (0);
}
str = ty->value.bmpstring;
*fname = uni2asc(str->data, str->length);
if (*fname == NULL) {
SUNWerr(SUNW_F_GET_PKEY_FNAME, SUNW_R_MEMORY_FAILURE);
return (-1);
}
len = strlen(*fname);
return (len);
}
/*
* sunw_find_localkeyid() searches stacks of certs and private keys,
* and returns the first matching cert/private key found.
*
* Look for a keyid in a stack of certs. if 'certs' is NULL and 'pkeys' is
* not NULL, search the list of private keys. Move the matching cert to
* 'matching_cert' and its matching private key to 'matching_pkey'. If no
* cert or keys match, no match occurred.
*
* Arguments:
* keyid_str- A byte string with the localkeyid to match
* keyid_len- Length of the keyid byte string.
* pkeys - Points to a stack of private keys which match the certs.
* This may be NULL, in which case no keys are returned.
* certs - Points to a stack of certs to search. If NULL, search the
* stack of keys instead.
* matching_pkey
* - Pointer to receive address of first matching pkey found.
* 'matching_pkey' must not be NULL; '*matching_pkey' will be
* reset.
* matching_cert
* - Pointer to receive address of first matching cert found.
* 'matching_cert' must not be NULL; '*matching_cert' will be
* reset.
*
* Returns:
* < 0 - An error returned. Call ERR_get_error() to get errors information.
* Where possible, memory has been freed.
* >= 0 - Objects were found and returned. Which objects are indicated by
* which bits are set (FOUND_PKEY and/or FOUND_CERT).
*/
int
sunw_find_localkeyid(char *keyid_str, int len, STACK_OF(EVP_PKEY) *pkeys,
STACK_OF(X509) *certs, EVP_PKEY **matching_pkey, X509 **matching_cert)
{
ASN1_STRING *cmpstr = NULL;
EVP_PKEY *tmp_pkey = NULL;
X509 *tmp_cert = NULL;
int retval = 0;
/* If NULL arguments, this is an error */
if (keyid_str == NULL ||
(pkeys == NULL || certs == NULL) ||
(pkeys != NULL && matching_pkey == NULL) ||
(certs != NULL && matching_cert == NULL)) {
SUNWerr(SUNW_F_FIND_LOCALKEYID, SUNW_R_INVALID_ARG);
return (-1);
}
if (matching_pkey != NULL)
*matching_pkey = NULL;
if (matching_cert != NULL)
*matching_cert = NULL;
cmpstr = (ASN1_STRING *)M_ASN1_OCTET_STRING_new();
if (cmpstr == NULL ||
M_ASN1_OCTET_STRING_set(cmpstr, keyid_str, len) == 0) {
SUNWerr(SUNW_F_FIND_LOCALKEYID, SUNW_R_MEMORY_FAILURE);
return (-1);
}
retval = find_attr(NID_localKeyID, cmpstr, pkeys, &tmp_pkey, certs,
&tmp_cert);
if (retval == 0) {
ASN1_STRING_free(cmpstr);
return (retval);
}
if (matching_pkey != NULL)
*matching_pkey = tmp_pkey;
if (matching_cert != NULL)
*matching_cert = tmp_cert;
return (retval);
}
/*
* sunw_find_fname() searches stacks of certs and private keys for one with
* a matching friendlyname and returns the first matching cert/private
* key found.
*
* Look for a friendlyname in a stack of certs. if 'certs' is NULL and 'pkeys'
* is not NULL, search the list of private keys. Move the matching cert to
* 'matching_cert' and its matching private key to 'matching_pkey'. If no
* cert or keys match, no match occurred.
*
* Arguments:
* fname - Friendlyname to find (NULL-terminated ASCII string).
* pkeys - Points to a stack of private keys which match the certs.
* This may be NULL, in which case no keys are returned.
* certs - Points to a stack of certs to search. If NULL, search the
* stack of keys instead.
* matching_pkey
* - Pointer to receive address of first matching pkey found.
* matching_cert
* - Pointer to receive address of first matching cert found.
*
* Returns:
* < 0 - An error returned. Call ERR_get_error() to get errors information.
* Where possible, memory has been freed.
* >= 0 - Objects were found and returned. Which objects are indicated by
* which bits are set (FOUND_PKEY and/or FOUND_CERT).
*/
int
sunw_find_fname(char *fname, STACK_OF(EVP_PKEY) *pkeys, STACK_OF(X509) *certs,
EVP_PKEY **matching_pkey, X509 ** matching_cert)
{
ASN1_STRING *cmpstr = NULL;
EVP_PKEY *tmp_pkey = NULL;
X509 *tmp_cert = NULL;
int retval = 0;
/* If NULL arguments, this is an error */
if (fname == NULL ||
(pkeys == NULL && certs == NULL) ||
(pkeys != NULL && matching_pkey == NULL) ||
(certs != NULL && matching_cert == NULL)) {
SUNWerr(SUNW_F_FIND_FNAME, SUNW_R_INVALID_ARG);
return (-1);
}
if (matching_pkey != NULL)
*matching_pkey = NULL;
if (matching_cert != NULL)
*matching_cert = NULL;
cmpstr = (ASN1_STRING *)asc2bmpstring(fname, strlen(fname));
if (cmpstr == NULL) {
/*
* Error already on stack
*/
return (-1);
}
retval = find_attr(NID_friendlyName, cmpstr, pkeys, &tmp_pkey, certs,
&tmp_cert);
if (retval == 0) {
ASN1_STRING_free(cmpstr);
return (retval);
}
if (matching_pkey != NULL)
*matching_pkey = tmp_pkey;
if (matching_cert != NULL)
*matching_cert = tmp_cert;
return (retval);
}
/*
* sunw_get_cert_fname() gets the fiendlyname from a cert. It can
* optionally remove the value found.
*
* Arguments:
* dowhat - What to do with the attributes (remove them or copy them).
* cert - Points to a cert to get the friendlyName from.
* fname - Points to a location which will receive the pointer to a
* byte string with the ASCII friendlyname
*
* Returns:
* >= 0 - The number of characters in the friendlyname returned.
* < 0 - An error occurred. It was probably an error in allocating
* memory. The error will be set in the error stack. Call
* ERR_get_error() to get specific information.
*/
int
sunw_get_cert_fname(getdo_actions_t dowhat, X509 *cert, char **fname)
{
int len;
if (fname != NULL)
*fname = NULL;
if (cert == NULL || cert->aux == NULL || cert->aux->alias == NULL) {
return (0);
}
if (dowhat == GETDO_DEL) {
/* Delete the entry */
ASN1_UTF8STRING_free(cert->aux->alias);
cert->aux->alias = NULL;
return (0);
}
*((uchar_t **)fname) = utf82ascstr(cert->aux->alias);
if (*fname == NULL) {
/*
* Error already on stack
*/
return (-1);
}
len = strlen(*fname);
return (len);
}
/*
* sunw_set_fname() sets the friendlyName in a cert, a private key or
* both. Any existing friendlyname will be discarded.
*
* Arguments:
* ascname - An ASCII string with the friendlyName to set
* pkey - Points to a private key to set the fname in.
* cert - Points to a cert to set the fname in.
*
* Note that setting a friendlyName into a cert which will not be written out
* as a PKCS12 cert is pointless since it will be lost.
*
* Returns:
* 0 - Success.
* <0 - An error occurred. It was probably an error in allocating
* memory. The error will be set in the error stack. Call
* ERR_get_error() to get specific information.
*/
int
sunw_set_fname(const char *ascname, EVP_PKEY *pkey, X509 *cert)
{
X509_ATTRIBUTE *attr = NULL;
ASN1_BMPSTRING *str = NULL;
ASN1_TYPE *fname = NULL;
unsigned char *data = NULL;
int retval = -1;
int len;
int i;
str = asc2bmpstring(ascname, strlen(ascname));
if (str == NULL) {
/*
* Error already on stack
*/
return (-1);
}
if (cert != NULL) {
if (cert->aux != NULL && cert->aux->alias != NULL) {
ASN1_UTF8STRING_free(cert->aux->alias);
}
len = ASN1_STRING_to_UTF8(&data, str);
i = -23;
if (len <= 0 || (i = X509_alias_set1(cert, data, len)) == 0) {
SUNWerr(SUNW_F_SET_FNAME, SUNW_R_SET_FNAME_ERR);
goto cleanup;
}
}
if (pkey != NULL) {
if ((fname = ASN1_TYPE_new()) == NULL) {
SUNWerr(SUNW_F_SET_FNAME, SUNW_R_MEMORY_FAILURE);
goto cleanup;
}
ASN1_TYPE_set(fname, V_ASN1_BMPSTRING, str);
str = NULL;
attr = type2attrib(fname, NID_friendlyName);
if (attr == NULL) {
/*
* Error already on stack
*/
goto cleanup;
}
fname = NULL;
if (pkey->attributes == NULL) {
pkey->attributes = sk_X509_ATTRIBUTE_new_null();
if (pkey->attributes == NULL) {
SUNWerr(SUNW_F_SET_FNAME,
SUNW_R_MEMORY_FAILURE);
goto cleanup;
}
} else if ((i = find_attr_by_nid(pkey->attributes,
NID_friendlyName)) >= 0) {
(void) sk_X509_ATTRIBUTE_delete(pkey->attributes, i);
}
if (sk_X509_ATTRIBUTE_push(pkey->attributes, attr) == 0) {
SUNWerr(SUNW_F_SET_FNAME, SUNW_R_MEMORY_FAILURE);
goto cleanup;
}
attr = NULL;
}
retval = 0;
cleanup:
if (data != NULL)
OPENSSL_free(data);
if (str != NULL)
ASN1_BMPSTRING_free(str);
if (fname != NULL)
ASN1_TYPE_free(fname);
if (attr != NULL)
X509_ATTRIBUTE_free(attr);
return (retval);
}
/*
* sunw_check_keys() compares the public key in the certificate and a
* private key to ensure that they match.
*
* Arguments:
* cert - Points to a certificate.
* pkey - Points to a private key.
*
* Returns:
* == 0 - These do not match.
* != 0 - The cert's public key and the private key match.
*/
int
sunw_check_keys(X509 *cert, EVP_PKEY *pkey)
{
int retval = 0;
if (pkey != NULL && cert != NULL)
retval = X509_check_private_key(cert, pkey);
return (retval);
}
/*
* sunw_check_cert_times() compares the time fields in a certificate
*
* Compare the 'not before' and the 'not after' times in the cert
* to the current time. Return the results of the comparison (bad time formats,
* cert not yet in force, cert expired or in range)
*
* Arguments:
* dowhat - what field(s) to check.
* cert - Points to a cert to check
*
* Returns:
* Results of the comparison.
*/
chk_errs_t
sunw_check_cert_times(chk_actions_t chkwhat, X509 *cert)
{
return (check_time(chkwhat, cert));
}
/*
* ----------------------------------------------------------------------------
* Local routines
* ----------------------------------------------------------------------------
*/
/*
* parse_pkcs12 - Oversee parsing of the pkcs12 structure. Get it
* parsed. After that either return what's found directly, or
* do any required matching.
*
* Arguments:
* p12 - Structure with pkcs12 info to be parsed
* pass - Pass phrase for the private key (possibly empty) or NULL if
* there is none.
* matchty - Info about which certs/keys to return if many are in the file.
* keyid - If private key localkeyids friendlynames are to match a
* predetermined value, the value to match. This value should
* be an octet string.
* keyid_len- Length of the keyid byte string.
* name_str - If friendlynames are to match a predetermined value, the value
* to match. This value should be a NULL terminated string.
* pkey - Points to location pointing to the private key returned.
* cert - Points to locaiton which points to the client cert returned
* ca - Points to location that points to a stack of 'certificate
* authority' certs/trust anchors.
*
* Note about error codes: This function is an internal function, and the
* place where it is called sets error codes. Therefore only set an error
* code if it is something that is unique or if the function which detected
* the error doesn't set one.
*
* Returns:
* == -1 - An error occurred. Call ERR_get_error() to get error information.
* Where possible, memory has been freed.
* == 0 - No matching returns were found.
* > 0 - This is the aithmetic 'or' of the FOUND_* bits that indicate which
* of the requested entries were found.
*/
static int
parse_pkcs12(PKCS12 *p12, const char *pass, int matchty, char *keyid,
int kstr_len, char *name_str, EVP_PKEY **pkey, X509 **cert,
STACK_OF(X509) **ca)
{
STACK_OF(EVP_PKEY) *work_kl = NULL; /* Head for private key list */
STACK_OF(EVP_PKEY) *nocerts = NULL; /* Head for alt. key list */
STACK_OF(X509) *work_ca = NULL; /* Head for cert list */
STACK_OF(X509) *work_cl = NULL;
int retval = 0;
int n;
retval = sunw_PKCS12_contents(p12, pass, &work_kl, &work_ca);
if (retval < 0) {
goto cleanup;
} else if (retval == 0) {
/*
* Not really an error here - its just that nothing was found.
*/
goto cleanup;
}
if (sk_EVP_PKEY_num(work_kl) > 0) {
if (sunw_split_certs(work_kl, work_ca, &work_cl, &nocerts)
< 0) {
goto cleanup;
}
}
/*
* Go through the lists of certs and private keys which were
* returned, looking for matches of the appropriate type. Do these
* in the order described above.
*/
if ((matchty & DO_FIND_KEYID) != 0) {
if (keyid == NULL) {
SUNWerr(SUNW_F_PKCS12_PARSE, SUNW_R_INVALID_ARG);
retval = -1;
goto cleanup;
}
/* See if string matches localkeyid's */
retval = sunw_find_localkeyid(keyid, kstr_len,
work_kl, work_cl, pkey, cert);
if (retval != 0) {
if (retval == -1)
goto cleanup;
else
goto last_part;
}
}
if ((matchty & DO_FIND_FN) != 0) {
if (name_str == NULL) {
SUNWerr(SUNW_F_PKCS12_PARSE, SUNW_R_INVALID_ARG);
retval = -1;
goto cleanup;
}
/* See if string matches friendly names */
retval = sunw_find_fname(name_str, work_kl, work_cl,
pkey, cert);
if (retval != 0) {
if (retval == -1)
goto cleanup;
else
goto last_part;
}
}
if (matchty & DO_FIRST_PAIR) {
/* Find the first cert and private key and return them */
retval = get_key_cert(0, work_kl, pkey, work_cl, cert);
if (retval != 0) {
if (retval == -1)
goto cleanup;
else
goto last_part;
}
}
if (matchty & DO_LAST_PAIR) {
/*
* Find the last matching cert and private key and return
* them. Since keys which don't have matching client certs
* are at the end of the list of keys, use the number of
* client certs to compute the position of the last private
* key which matches a client cert.
*/
n = sk_X509_num(work_cl) - 1;
retval = get_key_cert(n, work_kl, pkey, work_cl, cert);
if (retval != 0) {
if (retval == -1)
goto cleanup;
else
goto last_part;
}
}
if (matchty & DO_UNMATCHING) {
STACK_OF(EVP_PKEY) *tmpk;
STACK_OF(X509) *tmpc;
/* Find the first cert and private key and return them */
tmpc = work_cl;
if (work_cl == NULL || sk_X509_num(work_cl) == 0)
tmpc = work_ca;
tmpk = work_kl;
if (work_kl == NULL || sk_EVP_PKEY_num(work_kl) == 0)
tmpk = nocerts;
retval = get_key_cert(0, tmpk, pkey, tmpc, cert);
if (retval != 0) {
if (retval == -1)
goto cleanup;
else
goto last_part;
}
}
last_part:
/* If no errors, terminate normally */
if (retval != -1)
retval |= set_results(NULL, NULL, NULL, NULL, ca, &work_ca,
NULL, NULL);
if (retval >= 0) {
goto clean_part;
}
/* Fallthrough is intentional in error cases. */
cleanup:
if (pkey != NULL && *pkey != NULL) {
sunw_evp_pkey_free(*pkey);
*pkey = NULL;
}
if (cert != NULL && *cert != NULL) {
X509_free(*cert);
*cert = NULL;
}
clean_part:
if (work_kl != NULL) {
sk_EVP_PKEY_pop_free(work_kl, sunw_evp_pkey_free);
}
if (work_ca != NULL)
sk_X509_pop_free(work_ca, X509_free);
if (work_cl != NULL)
sk_X509_pop_free(work_cl, X509_free);
return (retval);
}
/*
* parse_outer - Unpack the outer PKCS#12 structure and go through the
* individual bags. Return stacks of certs, private keys found and
* CA certs found.
*
* Note about error codes: This function is an internal function, and the
* place where it is called sets error codes.
*
* Returns:
* 0 - An error returned. Call ERR_get_error() to get errors information.
* Where possible, memory has been freed.
* 1 - PKCS12 data object was parsed and lists of certs and private keys
* were returned.
*/
static int
parse_outer(PKCS12 *p12, const char *pass, STACK_OF(EVP_PKEY) *kl,
STACK_OF(X509) *cl)
{
STACK_OF(PKCS12_SAFEBAG) *bags;
STACK_OF(PKCS7) *asafes;
int i, bagnid;
PKCS7 *p7;
if ((asafes = M_PKCS12_unpack_authsafes(p12)) == NULL)
return (0);
for (i = 0; i < sk_PKCS7_num(asafes); i++) {
p7 = sk_PKCS7_value(asafes, i);
bagnid = OBJ_obj2nid(p7->type);
if (bagnid == NID_pkcs7_data) {
bags = M_PKCS12_unpack_p7data(p7);
} else if (bagnid == NID_pkcs7_encrypted) {
/*
* A length of '-1' means strlen() can be used
* to determine the password length.
*/
bags = M_PKCS12_unpack_p7encdata(p7, pass, -1);
} else {
SUNWerr(SUNW_F_PARSE_OUTER, SUNW_R_BAD_BAGTYPE);
return (0);
}
if (bags == NULL) {
SUNWerr(SUNW_F_PARSE_OUTER, SUNW_R_PARSE_BAG_ERR);
sk_PKCS7_pop_free(asafes, PKCS7_free);
return (0);
}
if (parse_all_bags(bags, pass, kl, cl) == 0) {
sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
sk_PKCS7_pop_free(asafes, PKCS7_free);
return (0);
}
}
return (1);
}
/*
* parse_all_bags - go through the stack of bags, parsing each.
*
* Note about error codes: This function is an internal function, and the
* place where it is called sets error codes.
*
* Returns:
* 0 - An error returned. Call ERR_get_error() to get errors information.
* Where possible, memory has been freed.
* 1 - Stack of safebags was parsed and lists of certs and private keys
* were returned.
*/
static int
parse_all_bags(STACK_OF(PKCS12_SAFEBAG) *bags, const char *pass,
STACK_OF(EVP_PKEY) *kl, STACK_OF(X509) *cl)
{
int i;
for (i = 0; i < sk_PKCS12_SAFEBAG_num(bags); i++) {
if (parse_one_bag(sk_PKCS12_SAFEBAG_value(bags, i),
pass, kl, cl) == 0)
return (0);
}
return (1);
}
/*
* parse_one_bag - Parse an individual bag
*
* i = parse_one_bag(bag, pass, kl, cl);
*
* Arguments:
* bag - pkcs12 safebag to parse.
* pass - password for use in decryption of shrouded keybag
* kl - Stack of private keys found so far. New private keys will
* be added here if found.
* cl - Stack of certs found so far. New certificates will be
* added here if found.
*
* Returns:
* 0 - An error returned. Call ERR_get_error() to get errors information.
* Where possible, memory has been freed.
* 1 - one safebag was parsed. If it contained a cert or private key, it
* was added to the stack of certs or private keys found, respectively.
* localKeyId or friendlyName attributes are returned with the
* private key or certificate.
*/
static int
parse_one_bag(PKCS12_SAFEBAG *bag, const char *pass, STACK_OF(EVP_PKEY) *kl,
STACK_OF(X509) *cl)
{
X509_ATTRIBUTE *attr = NULL;
ASN1_TYPE *keyid = NULL;
ASN1_TYPE *fname = NULL;
PKCS8_PRIV_KEY_INFO *p8;
EVP_PKEY *pkey = NULL;
X509 *x509 = NULL;
uchar_t *data = NULL;
char *str = NULL;
int retval = 1;
keyid = PKCS12_get_attr(bag, NID_localKeyID);
fname = PKCS12_get_attr(bag, NID_friendlyName);
switch (M_PKCS12_bag_type(bag)) {
case NID_keyBag:
if ((pkey = EVP_PKCS82PKEY(bag->value.keybag)) == NULL) {
SUNWerr(SUNW_F_PARSE_ONE_BAG, SUNW_R_PARSE_BAG_ERR);
retval = 0;
break;
}
break;
case NID_pkcs8ShroudedKeyBag:
/*
* A length of '-1' means strlen() can be used
* to determine the password length.
*/
if ((p8 = M_PKCS12_decrypt_skey(bag, pass, -1)) == NULL) {
SUNWerr(SUNW_F_PARSE_ONE_BAG, SUNW_R_PARSE_BAG_ERR);
retval = 0;
break;
}
pkey = EVP_PKCS82PKEY(p8);
PKCS8_PRIV_KEY_INFO_free(p8);
if (pkey == NULL) {
SUNWerr(SUNW_F_PARSE_ONE_BAG, SUNW_R_PARSE_BAG_ERR);
retval = 0;
}
break;
case NID_certBag:
if (M_PKCS12_cert_bag_type(bag) != NID_x509Certificate) {
SUNWerr(SUNW_F_PARSE_ONE_BAG, SUNW_R_BAD_CERTTYPE);
break;
}
if ((x509 = M_PKCS12_certbag2x509(bag)) == NULL) {
SUNWerr(SUNW_F_PARSE_ONE_BAG,
SUNW_R_PARSE_CERT_ERR);
retval = 0;
break;
}
if (keyid != NULL) {
if (keyid->type != V_ASN1_OCTET_STRING) {
SUNWerr(SUNW_F_PARSE_ONE_BAG,
SUNW_R_BAD_LKID);
retval = 0;
break;
}
if (X509_keyid_set1(x509,
keyid->value.octet_string->data,
keyid->value.octet_string->length) == 0) {
SUNWerr(SUNW_F_PARSE_ONE_BAG,
SUNW_R_SET_LKID_ERR);
retval = 0;
break;
}
}
if (fname != NULL) {
ASN1_STRING *tmpstr = NULL;
int len;
if (fname->type != V_ASN1_BMPSTRING) {
SUNWerr(SUNW_F_PARSE_ONE_BAG,
SUNW_R_BAD_FNAME);
retval = 0;
break;
}
tmpstr = fname->value.asn1_string;
len = ASN1_STRING_to_UTF8(&data, tmpstr);
if (len < 0) {
SUNWerr(SUNW_F_PARSE_ONE_BAG,
SUNW_R_SET_FNAME_ERR);
retval = 0;
break;
}
if (X509_alias_set1(x509, data, len) == 0) {
SUNWerr(SUNW_F_PARSE_ONE_BAG,
SUNW_R_SET_FNAME_ERR);
retval = 0;
break;
}
}
if (sk_X509_push(cl, x509) == 0) {
SUNWerr(SUNW_F_PARSE_ONE_BAG, SUNW_R_MEMORY_FAILURE);
retval = 0;
break;
}
x509 = NULL;
break;
case NID_safeContentsBag:
if (keyid != NULL)
ASN1_TYPE_free(keyid);
if (fname != NULL)
ASN1_TYPE_free(fname);
if (parse_all_bags(bag->value.safes, pass, kl, cl) == 0) {
/*
* Error already on stack
*/
return (0);
}
return (1);
default:
if (keyid != NULL)
ASN1_TYPE_free(keyid);
if (fname != NULL)
ASN1_TYPE_free(fname);
SUNWerr(SUNW_F_PARSE_ONE_BAG, SUNW_R_BAD_BAGTYPE);
return (0);
}
if (pkey != NULL) {
if (retval != 0 && (keyid != NULL || fname != NULL) &&
pkey->attributes == NULL) {
pkey->attributes = sk_X509_ATTRIBUTE_new_null();
if (pkey->attributes == NULL) {
SUNWerr(SUNW_F_PARSE_ONE_BAG,
SUNW_R_MEMORY_FAILURE);
retval = 0;
}
}
if (retval != 0 && keyid != NULL) {
attr = type2attrib(keyid, NID_localKeyID);
if (attr == NULL)
/*
* Error already on stack
*/
retval = 0;
else {
keyid = NULL;
if (sk_X509_ATTRIBUTE_push(pkey->attributes,
attr) == 0) {
SUNWerr(SUNW_F_PARSE_ONE_BAG,
SUNW_R_MEMORY_FAILURE);
retval = 0;
} else {
attr = NULL;
}
}
}
if (retval != 0 && fname != NULL) {
attr = type2attrib(fname, NID_friendlyName);
if (attr == NULL) {
/*
* Error already on stack
*/
retval = 0;
} else {
fname = NULL;
if (sk_X509_ATTRIBUTE_push(pkey->attributes,
attr) == 0) {
SUNWerr(SUNW_F_PARSE_ONE_BAG,
SUNW_R_MEMORY_FAILURE);
retval = 0;
} else {
attr = NULL;
}
}
}
/* Save the private key */
if (retval != 0) {
if (sk_EVP_PKEY_push(kl, pkey) == 0) {
SUNWerr(SUNW_F_PARSE_ONE_BAG,
SUNW_R_MEMORY_FAILURE);
retval = 0;
} else {
pkey = NULL;
}
}
}
if (pkey != NULL) {
sunw_evp_pkey_free(pkey);
}
if (x509 != NULL)
X509_free(x509);
if (keyid != NULL)
ASN1_TYPE_free(keyid);
if (fname != NULL)
ASN1_TYPE_free(fname);
if (attr != NULL)
X509_ATTRIBUTE_free(attr);
if (data != NULL)
OPENSSL_free(data);
if (str != NULL)
OPENSSL_free(str);
return (retval);
}
/*
* This function uses the only function that reads PEM files, regardless of
* the kinds of information included (private keys, public keys, cert requests,
* certs). Other interfaces that read files require that the application
* specifically know what kinds of things to read next, and call different
* interfaces for the different kinds of entities.
*
* There is only one aspect of this function that's a bit problematic.
* If it finds an encrypted private key, it does not decrypt it. It returns
* the encrypted data and other information needed to decrypt it. The caller
* must do the decryption. This function does the decoding.
*/
static int
pem_info(FILE *fp, pem_password_cb cb, void *userdata,
STACK_OF(EVP_PKEY) **pkeys, STACK_OF(X509) **certs)
{
STACK_OF(X509_INFO) *info;
STACK_OF(EVP_PKEY) *work_kl;
STACK_OF(X509) *work_cl;
X509_INFO *x;
int retval = 0;
int i;
info = PEM_X509_INFO_read(fp, NULL, cb, userdata);
if (info == NULL) {
SUNWerr(SUNW_F_PEM_INFO, SUNW_R_READ_ERR);
return (-1);
}
/*
* Allocate the working stacks for private key(s) and for the cert(s).
*/
if ((work_kl = sk_EVP_PKEY_new_null()) == NULL) {
SUNWerr(SUNW_F_PEM_INFO, SUNW_R_MEMORY_FAILURE);
retval = -1;
goto cleanup;
}
if ((work_cl = sk_X509_new_null()) == NULL) {
SUNWerr(SUNW_F_PEM_INFO, SUNW_R_MEMORY_FAILURE);
retval = -1;
goto cleanup;
}
/*
* Go through the entries in the info structure.
*/
for (i = 0; i < sk_X509_INFO_num(info); i++) {
x = sk_X509_INFO_value(info, i);
if (x->x509) {
if (sk_X509_push(work_cl, x->x509) == 0) {
retval = -1;
break;
}
x->x509 = NULL;
}
if (x->x_pkey != NULL && x->x_pkey->dec_pkey != NULL &&
(x->x_pkey->dec_pkey->type == EVP_PKEY_RSA ||
x->x_pkey->dec_pkey->type == EVP_PKEY_DSA)) {
const uchar_t *p;
/*
* If the key was encrypted, PEM_X509_INFO_read does
* not decrypt it. If that is the case, the 'enc_pkey'
* field is set to point to the unencrypted key data.
* Go through the additional steps to decode it before
* going on.
*/
if (x->x_pkey->enc_pkey != NULL) {
if (PEM_do_header(&x->enc_cipher,
(uchar_t *)x->enc_data,
(long *)&x->enc_len,
cb, userdata) == 0) {
if (ERR_GET_REASON(ERR_peek_error()) ==
PEM_R_BAD_PASSWORD_READ) {
SUNWerr(SUNW_F_PEM_INFO,
SUNW_R_PASSWORD_ERR);
} else {
SUNWerr(SUNW_F_PEM_INFO,
SUNW_R_PKEY_READ_ERR);
}
retval = -1;
break;
}
if (x->x_pkey->dec_pkey->type == EVP_PKEY_RSA) {
RSA **pp;
pp = &(x->x_pkey->dec_pkey->pkey.rsa);
p = (uchar_t *)x->enc_data;
if (d2i_RSAPrivateKey(pp, &p,
x->enc_len) == NULL) {
SUNWerr(SUNW_F_PEM_INFO,
SUNW_R_PKEY_READ_ERR);
retval = -1;
break;
}
} else {
DSA **pp;
pp = &(x->x_pkey->dec_pkey->pkey.dsa);
p = (uchar_t *)x->enc_data;
if (d2i_DSAPrivateKey(pp, &p,
x->enc_len) == NULL) {
SUNWerr(SUNW_F_PEM_INFO,
SUNW_R_PKEY_READ_ERR);
retval = -1;
break;
}
}
}
/* Save the key. */
retval = sk_EVP_PKEY_push(work_kl, x->x_pkey->dec_pkey);
if (retval == 0) {
retval = -1;
break;
}
x->x_pkey->dec_pkey = NULL;
} else if (x->x_pkey != NULL) {
SUNWerr(SUNW_F_PEM_INFO, SUNW_R_BAD_PKEYTYPE);
retval = -1;
break;
}
}
if (retval == -1)
goto cleanup;
/* If error occurs, then error already on stack */
retval = set_results(pkeys, &work_kl, certs, &work_cl, NULL, NULL,
NULL, NULL);
cleanup:
if (work_kl != NULL) {
sk_EVP_PKEY_pop_free(work_kl, sunw_evp_pkey_free);
}
if (work_cl != NULL)
sk_X509_pop_free(work_cl, X509_free);
sk_X509_INFO_pop_free(info, X509_INFO_free);
return (retval);
}
/*
* sunw_append_keys - Given two stacks of private keys, remove the keys from
* the second stack and append them to the first. Both stacks must exist
* at time of call.
*
* Arguments:
* dst - the stack to receive the keys from 'src'
* src - the stack whose keys are to be moved.
*
* Returns:
* -1 - An error occurred. The error status is set.
* >= 0 - The number of keys that were copied.
*/
static int
sunw_append_keys(STACK_OF(EVP_PKEY) *dst, STACK_OF(EVP_PKEY) *src)
{
EVP_PKEY *tmpk;
int count = 0;
while (sk_EVP_PKEY_num(src) > 0) {
tmpk = sk_EVP_PKEY_delete(src, 0);
if (sk_EVP_PKEY_push(dst, tmpk) == 0) {
sunw_evp_pkey_free(tmpk);
SUNWerr(SUNW_F_APPEND_KEYS, SUNW_R_MEMORY_FAILURE);
return (-1);
}
count ++;
}
return (count);
}
/*
* move_certs - Given two stacks of certs, remove the certs from
* the second stack and append them to the first.
*
* Arguments:
* dst - the stack to receive the certs from 'src'
* src - the stack whose certs are to be moved.
*
* Returns:
* -1 - An error occurred. The error status is set.
* >= 0 - The number of certs that were copied.
*/
static int
move_certs(STACK_OF(X509) *dst, STACK_OF(X509) *src)
{
X509 *tmpc;
int count = 0;
while (sk_X509_num(src) > 0) {
tmpc = sk_X509_delete(src, 0);
if (sk_X509_push(dst, tmpc) == 0) {
X509_free(tmpc);
SUNWerr(SUNW_F_MOVE_CERTS, SUNW_R_MEMORY_FAILURE);
return (-1);
}
count++;
}
return (count);
}
/*
* get_key_cert - Get a cert and its matching key from the stacks of certs
* and keys. They are removed from the stacks.
*
* Arguments:
* n - Offset of the entries to return.
* kl - Points to a stack of private keys that matches the list of
* certs below.
* pkey - Points at location where the address of the matching private
* key will be stored.
* cl - Points to a stack of client certs with matching private keys.
* cert - Points to locaiton where the address of the matching client cert
* will be returned
*
* The assumption is that the stacks of keys and certs contain key/cert pairs,
* with entries in the same order and hence at the same offset. Provided
* the key and cert selected match, each will be removed from its stack and
* returned.
*
* A stack of certs can be passed in without a stack of private keys, and vise
* versa. In that case, the indicated key/cert will be returned.
*
* Returns:
* 0 - No matches were found.
* > 0 - Bits set based on FOUND_* definitions, indicating what is returned.
* This can be FOUND_PKEY, FOUND_CERT or (FOUND_PKEY | FOUND_CERT).
*/
static int
get_key_cert(int n, STACK_OF(EVP_PKEY) *kl, EVP_PKEY **pkey, STACK_OF(X509) *cl,
X509 **cert)
{
int retval = 0;
int nk;
int nc;
nk = (kl != NULL) ? sk_EVP_PKEY_num(kl) : 0;
nc = (cl != NULL) ? sk_X509_num(cl) : 0;
if (pkey != NULL && *pkey == NULL) {
if (nk > 0 && n >= 0 || n < nk) {
*pkey = sk_EVP_PKEY_delete(kl, n);
if (*pkey != NULL)
retval |= FOUND_PKEY;
}
}
if (cert != NULL && *cert == NULL) {
if (nc > 0 && n >= 0 && n < nc) {
*cert = sk_X509_delete(cl, n);
if (*cert != NULL)
retval |= FOUND_CERT;
}
}
return (retval);
}
/*
* asc2bmpstring - Convert a regular C ASCII string to an ASn1_STRING in
* ASN1_BMPSTRING format.
*
* Arguments:
* str - String to be convered.
* len - Length of the string.
*
* Returns:
* == NULL - An error occurred. Error information (accessible by
* ERR_get_error()) is set.
* != NULL - Points to an ASN1_BMPSTRING structure with the converted
* string as a value.
*/
static ASN1_BMPSTRING *
asc2bmpstring(const char *str, int len)
{
ASN1_BMPSTRING *bmp = NULL;
uchar_t *uni = NULL;
int unilen;
/* Convert the character to the bmp format. */
if (asc2uni(str, len, &uni, &unilen) == 0) {
SUNWerr(SUNW_F_ASC2BMPSTRING, SUNW_R_MEMORY_FAILURE);
return (NULL);
}
/*
* Adjust for possible pair of NULL bytes at the end because
* asc2uni() returns a doubly null terminated string.
*/
if (uni[unilen - 1] == '\0' && uni[unilen - 2] == '\0')
unilen -= 2;
/* Construct comparison string with correct format */
bmp = M_ASN1_BMPSTRING_new();
if (bmp == NULL) {
SUNWerr(SUNW_F_ASC2BMPSTRING, SUNW_R_MEMORY_FAILURE);
OPENSSL_free(uni);
return (NULL);
}
bmp->data = uni;
bmp->length = unilen;
return (bmp);
}
/*
* utf82ascstr - Convert a UTF8STRING string to a regular C ASCII string.
* This goes through an intermediate step with a ASN1_STRING type of
* IA5STRING (International Alphabet 5, which is the same as ASCII).
*
* Arguments:
* str - UTF8STRING to be converted.
*
* Returns:
* == NULL - An error occurred. Error information (accessible by
* ERR_get_error()) is set.
* != NULL - Points to a NULL-termianted ASCII string. The caller must
* free it.
*/
static uchar_t *
utf82ascstr(ASN1_UTF8STRING *ustr)
{
ASN1_STRING tmpstr;
ASN1_STRING *astr = &tmpstr;
uchar_t *retstr = NULL;
int mbflag;
int ret;
if (ustr == NULL || ustr->type != V_ASN1_UTF8STRING) {
SUNWerr(SUNW_F_UTF82ASCSTR, SUNW_R_INVALID_ARG);
return (NULL);
}
mbflag = MBSTRING_ASC;
tmpstr.data = NULL;
tmpstr.length = 0;
ret = ASN1_mbstring_copy(&astr, ustr->data, ustr->length, mbflag,
B_ASN1_IA5STRING);
if (ret < 0) {
SUNWerr(SUNW_F_UTF82ASCSTR, SUNW_R_STR_CONVERT_ERR);
return (NULL);
}
retstr = OPENSSL_malloc(astr->length + 1);
if (retstr == NULL) {
SUNWerr(SUNW_F_UTF82ASCSTR, SUNW_R_MEMORY_FAILURE);
return (NULL);
}
(void) memcpy(retstr, astr->data, astr->length);
retstr[astr->length] = '\0';
OPENSSL_free(astr->data);
return (retstr);
}
/*
* type2attrib - Given a ASN1_TYPE, return a X509_ATTRIBUTE of the type
* specified by the given NID.
*
* Arguments:
* ty - Type structure to be made into an attribute
* nid - NID of the attribute
*
* Returns:
* NULL An error occurred.
* != NULL An X509_ATTRIBUTE structure.
*/
X509_ATTRIBUTE *
type2attrib(ASN1_TYPE *ty, int nid)
{
X509_ATTRIBUTE *a;
if ((a = X509_ATTRIBUTE_new()) == NULL ||
(a->value.set = sk_ASN1_TYPE_new_null()) == NULL ||
sk_ASN1_TYPE_push(a->value.set, ty) == 0) {
if (a != NULL)
X509_ATTRIBUTE_free(a);
SUNWerr(SUNW_F_TYPE2ATTRIB, SUNW_R_MEMORY_FAILURE);
return (NULL);
}
a->single = 0;
a->object = OBJ_nid2obj(nid);
return (a);
}
/*
* attrib2type - Given a X509_ATTRIBUTE, return pointer to the ASN1_TYPE
* component
*
* Arguments:
* attr - Attribute structure containing a type.
*
* Returns:
* NULL An error occurred.
* != NULL An ASN1_TYPE structure.
*/
static ASN1_TYPE *
attrib2type(X509_ATTRIBUTE *attr)
{
ASN1_TYPE *ty = NULL;
if (attr == NULL || attr->single == 1)
return (NULL);
if (sk_ASN1_TYPE_num(attr->value.set) > 0)
ty = sk_ASN1_TYPE_value(attr->value.set, 0);
return (ty);
}
/*
* find_attr_by_nid - Given a ASN1_TYPE, return the offset of a X509_ATTRIBUTE
* of the type specified by the given NID.
*
* Arguments:
* attrs - Stack of attributes to search
* nid - NID of the attribute being searched for
*
* Returns:
* -1 None found
* != -1 Offset of the matching attribute.
*/
static int
find_attr_by_nid(STACK_OF(X509_ATTRIBUTE) *attrs, int nid)
{
X509_ATTRIBUTE *a;
int i;
if (attrs == NULL)
return (-1);
for (i = 0; i < sk_X509_ATTRIBUTE_num(attrs); i++) {
a = sk_X509_ATTRIBUTE_value(attrs, i);
if (OBJ_obj2nid(a->object) == nid)
return (i);
}
return (-1);
}
/*
* Called by our PKCS12 code to read our function and error codes
* into memory so that the OpenSSL framework can retrieve them.
*/
void
ERR_load_SUNW_strings(void)
{
assert(SUNW_lib_error_code == 0);
#ifndef OPENSSL_NO_ERR
/*
* Have OpenSSL provide us with a unique ID.
*/
SUNW_lib_error_code = ERR_get_next_error_library();
ERR_load_strings(SUNW_lib_error_code, SUNW_str_functs);
ERR_load_strings(SUNW_lib_error_code, SUNW_str_reasons);
SUNW_lib_name->error = ERR_PACK(SUNW_lib_error_code, 0, 0);
ERR_load_strings(0, SUNW_lib_name);
#endif
}
/*
* The SUNWerr macro resolves to this routine. So when we need
* to push an error, this routine does it for us. Notice that
* the SUNWerr macro provides a filename and line #.
*/
void
ERR_SUNW_error(int function, int reason, char *file, int line)
{
assert(SUNW_lib_error_code != 0);
#ifndef OPENSSL_NO_ERR
ERR_PUT_error(SUNW_lib_error_code, function, reason, file, line);
#endif
}
/*
* check_time - Given an indication of the which time(s) to check, check
* that time or those times against the current time and return the
* relationship.
*
* Arguments:
* chkwhat - What kind of check to do.
* cert - The cert to check.
*
* Returns:
* CHKERR_* values.
*/
static chk_errs_t
check_time(chk_actions_t chkwhat, X509 *cert)
{
int i;
if (chkwhat == CHK_NOT_BEFORE || chkwhat == CHK_BOTH) {
i = X509_cmp_time(X509_get_notBefore(cert), NULL);
if (i == 0)
return (CHKERR_TIME_BEFORE_BAD);
if (i > 0)
return (CHKERR_TIME_IS_BEFORE);
/* The current time is after the 'not before' time */
}
if (chkwhat == CHK_NOT_AFTER || chkwhat == CHK_BOTH) {
i = X509_cmp_time(X509_get_notAfter(cert), NULL);
if (i == 0)
return (CHKERR_TIME_AFTER_BAD);
if (i < 0)
return (CHKERR_TIME_HAS_EXPIRED);
}
return (CHKERR_TIME_OK);
}
/*
* find_attr - Look for a given attribute of the type associated with the NID.
*
* Arguments:
* nid - NID for the attribute to be found (either NID_friendlyName or
* NID_locakKeyId)
* str - ASN1_STRING-type structure containing the value to be found,
* FriendlyName expects a ASN1_BMPSTRING and localKeyID uses a
* ASN1_STRING.
* kl - Points to a stack of private keys.
* pkey - Points at a location where the address of the matching private
* key will be stored.
* cl - Points to a stack of client certs with matching private keys.
* cert - Points to locaiton where the address of the matching client cert
* will be returned
*
* This function is designed to process lists of certs and private keys.
* This is made complex because these the attributes are stored differently
* for certs and for keys. For certs, only a few attributes are retained.
* FriendlyName is stored in the aux structure, under the name 'alias'.
* LocalKeyId is also stored in the aux structure, under the name 'keyid'.
* A pkey structure has a stack of attributes.
*
* The basic approach is:
* - If there there is no stack of certs but a stack of private keys exists,
* search the stack of keys for a match. Alternately, if there is a stack
* of certs and no private keys, search the certs.
*
* - If there are both certs and keys, assume that the matching certs and
* keys are in their respective stacks, with matching entries in the same
* order. Search for the name or keyid in the stack of certs. If it is
* not found, then this function returns 0 (nothing found).
*
* - Once a cert is found, verify that the key actually matches by
* comparing the private key with the public key (in the cert).
* If they don't match, return an error.
*
* A pointer to cert and/or pkey which matches the name or keyid is stored
* in the return arguments.
*
* Returns:
* 0 - No matches were found.
* > 0 - Bits set based on FOUND_* definitions, indicating what was found.
* This can be FOUND_PKEY, FOUND_CERT or (FOUND_PKEY | FOUND_CERT).
*/
static int
find_attr(int nid, ASN1_STRING *str, STACK_OF(EVP_PKEY) *kl, EVP_PKEY **pkey,
STACK_OF(X509) *cl, X509 **cert)
{
ASN1_UTF8STRING *ustr = NULL;
ASN1_STRING *s;
ASN1_TYPE *t;
EVP_PKEY *p;
uchar_t *fname = NULL;
X509 *x;
int found = 0;
int chkcerts;
int len;
int res;
int c = -1;
int k = -1;
chkcerts = (cert != NULL || pkey != NULL) && cl != NULL;
if (chkcerts && nid == NID_friendlyName &&
str->type == V_ASN1_BMPSTRING) {
ustr = ASN1_UTF8STRING_new();
if (ustr == NULL) {
SUNWerr(SUNW_F_FINDATTR, SUNW_R_MEMORY_FAILURE);
return (0);
}
len = ASN1_STRING_to_UTF8(&fname, str);
if (fname == NULL) {
ASN1_UTF8STRING_free(ustr);
SUNWerr(SUNW_F_FINDATTR, SUNW_R_STR_CONVERT_ERR);
return (0);
}
if (ASN1_STRING_set(ustr, fname, len) == 0) {
ASN1_UTF8STRING_free(ustr);
OPENSSL_free(fname);
SUNWerr(SUNW_F_FINDATTR, SUNW_R_MEMORY_FAILURE);
return (0);
}
}
if (chkcerts) {
for (c = 0; c < sk_X509_num(cl); c++) {
res = -1;
x = sk_X509_value(cl, c);
if (nid == NID_friendlyName && ustr != NULL) {
if (x->aux == NULL || x->aux->alias == NULL)
continue;
s = x->aux->alias;
if (s != NULL && s->type == ustr->type &&
s->data != NULL) {
res = ASN1_STRING_cmp(s, ustr);
}
} else {
if (x->aux == NULL || x->aux->keyid == NULL)
continue;
s = x->aux->keyid;
if (s != NULL && s->type == str->type &&
s->data != NULL) {
res = ASN1_STRING_cmp(s, str);
}
}
if (res == 0) {
if (cert != NULL)
*cert = sk_X509_delete(cl, c);
found = FOUND_CERT;
break;
}
}
if (ustr != NULL) {
ASN1_UTF8STRING_free(ustr);
OPENSSL_free(fname);
}
}
if (pkey != NULL && kl != NULL) {
/*
* Looking for pkey to match a cert? If so, assume that
* lists of certs and their matching pkeys are in the same
* order. Call X509_check_private_key() to verify this
* assumption.
*/
if (found != 0 && cert != NULL) {
k = c;
p = sk_EVP_PKEY_value(kl, k);
if (X509_check_private_key(x, p) != 0) {
if (pkey != NULL)
*pkey = sk_EVP_PKEY_delete(kl, k);
found |= FOUND_PKEY;
}
} else if (cert == NULL) {
for (k = 0; k < sk_EVP_PKEY_num(kl); k++) {
p = sk_EVP_PKEY_value(kl, k);
if (p == NULL || p->attributes == NULL)
continue;
t = PKCS12_get_attr_gen(p->attributes, nid);
if (t != NULL || ASN1_STRING_cmp(str,
t->value.asn1_string) == 0)
continue;
found |= FOUND_PKEY;
if (pkey != NULL)
*pkey = sk_EVP_PKEY_delete(kl, k);
break;
}
}
}
return (found);
}
/*
* set_results - Given two pointers to stacks of private keys, certs or CA
* CA certs, either copy the second stack to the first, or append the
* contents of the second to the first.
*
* Arguments:
* pkeys - Points to stack of pkeys
* work_kl - Points to working stack of pkeys
* certs - Points to stack of certs
* work_cl - Points to working stack of certs
* cacerts - Points to stack of CA certs
* work_ca - Points to working stack of CA certs
* xtrakeys - Points to stack of unmatcned pkeys
* work_xl - Points to working stack of unmatcned pkeys
*
* The arguments are in pairs. The first of each pair points to a stack
* of keys or certs. The second of the pair points at a 'working stack'
* of the same type of entities. Actions taken are as follows:
*
* - If either the first or second argument is NULL, or if there are no
* members in the second stack, there is nothing to do.
* - If the first argument points to a pointer which is NULL, then there
* is no existing stack for the first argument. Copy the stack pointer
* from the second argument to the first argument and NULL out the stack
* pointer for the second.
* - Otherwise, go through the elements of the second stack, removing each
* and adding it to the first stack.
*
* Returns:
* == -1 - An error occurred. Call ERR_get_error() to get error information.
* == 0 - No matching returns were found.
* > 0 - This is the arithmetic 'or' of the FOUND_* bits that indicate which
* of the requested entries were manipulated.
*/
static int
set_results(STACK_OF(EVP_PKEY) **pkeys, STACK_OF(EVP_PKEY) **work_kl,
STACK_OF(X509) **certs, STACK_OF(X509) **work_cl,
STACK_OF(X509) **cacerts, STACK_OF(X509) **work_ca,
STACK_OF(EVP_PKEY) **xtrakeys, STACK_OF(EVP_PKEY) **work_xl)
{
int retval = 0;
if (pkeys != NULL && work_kl != NULL && *work_kl != NULL &&
sk_EVP_PKEY_num(*work_kl) > 0) {
if (*pkeys == NULL) {
*pkeys = *work_kl;
*work_kl = NULL;
} else {
if (sunw_append_keys(*pkeys, *work_kl) < 0) {
return (-1);
}
}
retval |= FOUND_PKEY;
}
if (certs != NULL && work_cl != NULL && *work_cl != NULL &&
sk_X509_num(*work_cl) > 0) {
if (*certs == NULL) {
*certs = *work_cl;
*work_cl = NULL;
} else {
if (move_certs(*certs, *work_cl) < 0) {
return (-1);
}
}
retval |= FOUND_CERT;
}
if (cacerts != NULL && work_ca != NULL && *work_ca != NULL &&
sk_X509_num(*work_ca) > 0) {
if (*cacerts == NULL) {
*cacerts = *work_ca;
*work_ca = NULL;
} else {
if (move_certs(*cacerts, *work_ca) < 0) {
return (-1);
}
}
retval |= FOUND_CA_CERTS;
}
if (xtrakeys != NULL && work_xl != NULL && *work_xl != NULL &&
sk_EVP_PKEY_num(*work_xl) > 0) {
if (*xtrakeys == NULL) {
*xtrakeys = *work_xl;
*work_xl = NULL;
} else {
if (sunw_append_keys(*xtrakeys, *work_xl) < 0) {
return (-1);
}
}
retval |= FOUND_XPKEY;
}
return (retval);
}