diff options
author | Moriah Waterland <Moriah.Waterland@Sun.COM> | 2009-06-03 20:16:25 -0600 |
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committer | Moriah Waterland <Moriah.Waterland@Sun.COM> | 2009-06-03 20:16:25 -0600 |
commit | 5c51f1241dbbdf2656d0e10011981411ed0c9673 (patch) | |
tree | 0f30a2e38fe4e5d53a5a67264ba548577d82a86f /usr/src/lib/libpkg/common/p12lib.c | |
parent | 2b79d384d32b4ea1e278466cd9b0f3bb56daae22 (diff) | |
download | illumos-joyent-5c51f1241dbbdf2656d0e10011981411ed0c9673.tar.gz |
6739234 move SVR4 packaging to ONNV gate
Diffstat (limited to 'usr/src/lib/libpkg/common/p12lib.c')
-rw-r--r-- | usr/src/lib/libpkg/common/p12lib.c | 2786 |
1 files changed, 2786 insertions, 0 deletions
diff --git a/usr/src/lib/libpkg/common/p12lib.c b/usr/src/lib/libpkg/common/p12lib.c new file mode 100644 index 0000000000..3ae72a4b50 --- /dev/null +++ b/usr/src/lib/libpkg/common/p12lib.c @@ -0,0 +1,2786 @@ +/* + * ==================================================================== + * 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); +} |