diff options
Diffstat (limited to 'modules/ssl/ssl_util_ssl.c')
| -rw-r--r-- | modules/ssl/ssl_util_ssl.c | 544 |
1 files changed, 0 insertions, 544 deletions
diff --git a/modules/ssl/ssl_util_ssl.c b/modules/ssl/ssl_util_ssl.c deleted file mode 100644 index 19f6bd3629..0000000000 --- a/modules/ssl/ssl_util_ssl.c +++ /dev/null @@ -1,544 +0,0 @@ -/* _ _ -** _ __ ___ ___ __| | ___ ___| | mod_ssl -** | '_ ` _ \ / _ \ / _` | / __/ __| | Apache Interface to OpenSSL -** | | | | | | (_) | (_| | \__ \__ \ | www.modssl.org -** |_| |_| |_|\___/ \__,_|___|___/___/_| ftp.modssl.org -** |_____| -** ssl_util_ssl.c -** Additional Utility Functions for OpenSSL -*/ - -/* ==================================================================== - * Copyright (c) 1998-2001 Ralf S. Engelschall. 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 - * Ralf S. Engelschall <rse@engelschall.com> for use in the - * mod_ssl project (http://www.modssl.org/)." - * - * 4. The names "mod_ssl" must not be used to endorse or promote - * products derived from this software without prior written - * permission. For written permission, please contact - * rse@engelschall.com. - * - * 5. Products derived from this software may not be called "mod_ssl" - * nor may "mod_ssl" appear in their names without prior - * written permission of Ralf S. Engelschall. - * - * 6. Redistributions of any form whatsoever must retain the following - * acknowledgment: - * "This product includes software developed by - * Ralf S. Engelschall <rse@engelschall.com> for use in the - * mod_ssl project (http://www.modssl.org/)." - * - * THIS SOFTWARE IS PROVIDED BY RALF S. ENGELSCHALL ``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 RALF S. ENGELSCHALL OR - * HIS 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. - * ==================================================================== - */ - -#include "mod_ssl.h" - - -/* _________________________________________________________________ -** -** Additional High-Level Functions for OpenSSL -** _________________________________________________________________ -*/ - -int SSL_get_app_data2_idx(void) -{ - static int app_data2_idx = -1; - - if (app_data2_idx < 0) { - app_data2_idx = SSL_get_ex_new_index(0, - "Second Application Data for SSL", NULL, NULL, NULL); - app_data2_idx = SSL_get_ex_new_index(0, - "Second Application Data for SSL", NULL, NULL, NULL); - } - return(app_data2_idx); -} - -void *SSL_get_app_data2(SSL *ssl) -{ - return (void *)SSL_get_ex_data(ssl, SSL_get_app_data2_idx()); -} - -void SSL_set_app_data2(SSL *ssl, void *arg) -{ - SSL_set_ex_data(ssl, SSL_get_app_data2_idx(), (char *)arg); - return; -} - -/* _________________________________________________________________ -** -** High-Level Certificate / Private Key Loading -** _________________________________________________________________ -*/ - -X509 *SSL_read_X509(FILE *fp, X509 **x509, int (*cb)()) -{ - X509 *rc; - BIO *bioS; - BIO *bioF; - - /* 1. try PEM (= DER+Base64+headers) */ -#if SSL_LIBRARY_VERSION < 0x00904000 - rc = PEM_read_X509(fp, x509, cb); -#else - rc = PEM_read_X509(fp, x509, cb, NULL); -#endif - if (rc == NULL) { - /* 2. try DER+Base64 */ - fseek(fp, 0L, SEEK_SET); - if ((bioS = BIO_new(BIO_s_fd())) == NULL) - return NULL; - BIO_set_fd(bioS, fileno(fp), BIO_NOCLOSE); - if ((bioF = BIO_new(BIO_f_base64())) == NULL) { - BIO_free(bioS); - return NULL; - } - bioS = BIO_push(bioF, bioS); - rc = d2i_X509_bio(bioS, NULL); - BIO_free_all(bioS); - if (rc == NULL) { - /* 3. try plain DER */ - fseek(fp, 0L, SEEK_SET); - if ((bioS = BIO_new(BIO_s_fd())) == NULL) - return NULL; - BIO_set_fd(bioS, fileno(fp), BIO_NOCLOSE); - rc = d2i_X509_bio(bioS, NULL); - BIO_free(bioS); - } - } - if (rc != NULL && x509 != NULL) { - if (*x509 != NULL) - X509_free(*x509); - *x509 = rc; - } - return rc; -} - -#if SSL_LIBRARY_VERSION <= 0x00904100 -static EVP_PKEY *d2i_PrivateKey_bio(BIO *bio, EVP_PKEY **key) -{ - return ((EVP_PKEY *)ASN1_d2i_bio( - (char *(*)())EVP_PKEY_new, - (char *(*)())d2i_PrivateKey, - (bio), (unsigned char **)(key))); -} -#endif - -EVP_PKEY *SSL_read_PrivateKey(FILE *fp, EVP_PKEY **key, int (*cb)()) -{ - EVP_PKEY *rc; - BIO *bioS; - BIO *bioF; - - /* 1. try PEM (= DER+Base64+headers) */ -#if SSL_LIBRARY_VERSION < 0x00904000 - rc = PEM_read_PrivateKey(fp, key, cb); -#else - rc = PEM_read_PrivateKey(fp, key, cb, NULL); -#endif - if (rc == NULL) { - /* 2. try DER+Base64 */ - fseek(fp, 0L, SEEK_SET); - if ((bioS = BIO_new(BIO_s_fd())) == NULL) - return NULL; - BIO_set_fd(bioS, fileno(fp), BIO_NOCLOSE); - if ((bioF = BIO_new(BIO_f_base64())) == NULL) { - BIO_free(bioS); - return NULL; - } - bioS = BIO_push(bioF, bioS); - rc = d2i_PrivateKey_bio(bioS, NULL); - BIO_free_all(bioS); - if (rc == NULL) { - /* 3. try plain DER */ - fseek(fp, 0L, SEEK_SET); - if ((bioS = BIO_new(BIO_s_fd())) == NULL) - return NULL; - BIO_set_fd(bioS, fileno(fp), BIO_NOCLOSE); - rc = d2i_PrivateKey_bio(bioS, NULL); - BIO_free(bioS); - } - } - if (rc != NULL && key != NULL) { - if (*key != NULL) - EVP_PKEY_free(*key); - *key = rc; - } - return rc; -} - -/* _________________________________________________________________ -** -** Smart shutdown -** _________________________________________________________________ -*/ - -int SSL_smart_shutdown(SSL *ssl) -{ - int i; - int rc; - - /* - * Repeat the calls, because SSL_shutdown internally dispatches through a - * little state machine. Usually only one or two interation should be - * needed, so we restrict the total number of restrictions in order to - * avoid process hangs in case the client played bad with the socket - * connection and OpenSSL cannot recognize it. - */ - rc = 0; - for (i = 0; i < 4 /* max 2x pending + 2x data = 4 */; i++) { - if ((rc = SSL_shutdown(ssl))) - break; - } - return rc; -} - -/* _________________________________________________________________ -** -** Certificate Revocation List (CRL) Storage -** _________________________________________________________________ -*/ - -X509_STORE *SSL_X509_STORE_create(char *cpFile, char *cpPath) -{ - X509_STORE *pStore; - X509_LOOKUP *pLookup; - - if (cpFile == NULL && cpPath == NULL) - return NULL; - if ((pStore = X509_STORE_new()) == NULL) - return NULL; - if (cpFile != NULL) { - if ((pLookup = X509_STORE_add_lookup(pStore, X509_LOOKUP_file())) == NULL) { - X509_STORE_free(pStore); - return NULL; - } - X509_LOOKUP_load_file(pLookup, cpFile, X509_FILETYPE_PEM); - } - if (cpPath != NULL) { - if ((pLookup = X509_STORE_add_lookup(pStore, X509_LOOKUP_hash_dir())) == NULL) { - X509_STORE_free(pStore); - return NULL; - } - X509_LOOKUP_add_dir(pLookup, cpPath, X509_FILETYPE_PEM); - } - return pStore; -} - -int SSL_X509_STORE_lookup(X509_STORE *pStore, int nType, - X509_NAME *pName, X509_OBJECT *pObj) -{ - X509_STORE_CTX pStoreCtx; - int rc; - - X509_STORE_CTX_init(&pStoreCtx, pStore, NULL, NULL); - rc = X509_STORE_get_by_subject(&pStoreCtx, nType, pName, pObj); - X509_STORE_CTX_cleanup(&pStoreCtx); - return rc; -} - -/* _________________________________________________________________ -** -** Cipher Suite Spec String Creation -** _________________________________________________________________ -*/ - -char *SSL_make_ciphersuite(pool *p, SSL *ssl) -{ - STACK_OF(SSL_CIPHER) *sk; - SSL_CIPHER *c; - int i; - int l; - char *cpCipherSuite; - char *cp; - - if (ssl == NULL) - return ""; - if ((sk = SSL_get_ciphers(ssl)) == NULL) - return ""; - l = 0; - for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) { - c = sk_SSL_CIPHER_value(sk, i); - l += strlen(c->name)+2+1; - } - if (l == 0) - return ""; - cpCipherSuite = (char *)ap_palloc(p, l+1); - cp = cpCipherSuite; - for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) { - c = sk_SSL_CIPHER_value(sk, i); - l = strlen(c->name); - memcpy(cp, c->name, l); - cp += l; - *cp++ = '/'; - *cp++ = (c->valid == 1 ? '1' : '0'); - *cp++ = ':'; - } - *(cp-1) = NUL; - return cpCipherSuite; -} - -/* _________________________________________________________________ -** -** Certificate Checks -** _________________________________________________________________ -*/ - -/* check whether cert contains extended key usage with a SGC tag */ -BOOL SSL_X509_isSGC(X509 *cert) -{ - X509_EXTENSION *ext; - int ext_nid; - STACK *sk; - BOOL is_sgc; - int idx; - int i; - - is_sgc = FALSE; - idx = X509_get_ext_by_NID(cert, NID_ext_key_usage, -1); - if (idx >= 0) { - ext = X509_get_ext(cert, idx); - if ((sk = (STACK *)X509V3_EXT_d2i(ext)) != NULL) { - for (i = 0; i < sk_num(sk); i++) { - ext_nid = OBJ_obj2nid((ASN1_OBJECT *)sk_value(sk, i)); - if (ext_nid == NID_ms_sgc || ext_nid == NID_ns_sgc) { - is_sgc = TRUE; - break; - } - } - } - } - return is_sgc; -} - -/* retrieve basic constraints ingredients */ -BOOL SSL_X509_getBC(X509 *cert, int *ca, int *pathlen) -{ - X509_EXTENSION *ext; - BASIC_CONSTRAINTS *bc; - int idx; - BIGNUM *bn = NULL; - char *cp; - - if ((idx = X509_get_ext_by_NID(cert, NID_basic_constraints, -1)) < 0) - return FALSE; - ext = X509_get_ext(cert, idx); - if (ext == NULL) - return FALSE; - if ((bc = (BASIC_CONSTRAINTS *)X509V3_EXT_d2i(ext)) == NULL) - return FALSE; - *ca = bc->ca; - *pathlen = -1 /* unlimited */; - if (bc->pathlen != NULL) { - if ((bn = ASN1_INTEGER_to_BN(bc->pathlen, NULL)) == NULL) - return FALSE; - if ((cp = BN_bn2dec(bn)) == NULL) - return FALSE; - *pathlen = atoi(cp); - free(cp); - BN_free(bn); - } - BASIC_CONSTRAINTS_free(bc); - return TRUE; -} - -/* retrieve subject CommonName of certificate */ -BOOL SSL_X509_getCN(pool *p, X509 *xs, char **cppCN) -{ - X509_NAME *xsn; - X509_NAME_ENTRY *xsne; - int i, nid; - - xsn = X509_get_subject_name(xs); - for (i = 0; i < sk_X509_NAME_ENTRY_num(xsn->entries); i++) { - xsne = sk_X509_NAME_ENTRY_value(xsn->entries, i); - nid = OBJ_obj2nid(xsne->object); - if (nid == NID_commonName) { - *cppCN = ap_palloc(p, xsne->value->length+1); - ap_cpystrn(*cppCN, (char *)xsne->value->data, xsne->value->length+1); - (*cppCN)[xsne->value->length] = NUL; -#ifdef CHARSET_EBCDIC - ascii2ebcdic(*cppCN, *cppCN, strlen(*cppCN)); -#endif - return TRUE; - } - } - return FALSE; -} - -/* _________________________________________________________________ -** -** Low-Level CA Certificate Loading -** _________________________________________________________________ -*/ - -#ifdef SSL_EXPERIMENTAL_PROXY - -BOOL SSL_load_CrtAndKeyInfo_file(pool *p, STACK_OF(X509_INFO) *sk, char *filename) -{ - BIO *in; - - if ((in = BIO_new(BIO_s_file())) == NULL) - return FALSE; - if (BIO_read_filename(in, filename) <= 0) { - BIO_free(in); - return FALSE; - } - ERR_clear_error(); -#if SSL_LIBRARY_VERSION < 0x00904000 - PEM_X509_INFO_read_bio(in, sk, NULL); -#else - PEM_X509_INFO_read_bio(in, sk, NULL, NULL); -#endif - BIO_free(in); - return TRUE; -} - -BOOL SSL_load_CrtAndKeyInfo_path(pool *p, STACK_OF(X509_INFO) *sk, char *pathname) -{ - struct stat st; - DIR *dir; - pool *sp; - struct dirent *nextent; - char *fullname; - BOOL ok; - - sp = ap_make_sub_pool(p); - if ((dir = ap_popendir(sp, pathname)) == NULL) { - ap_destroy_pool(sp); - return FALSE; - } - ok = FALSE; - while ((nextent = readdir(dir)) != NULL) { - fullname = ap_pstrcat(sp, pathname, "/", nextent->d_name, NULL); - if (stat(fullname, &st) != 0) - continue; - if (!S_ISREG(st.st_mode)) - continue; - if (SSL_load_CrtAndKeyInfo_file(sp, sk, fullname)) - ok = TRUE; - } - ap_pclosedir(p, dir); - ap_destroy_pool(sp); - return ok; -} - -#endif /* SSL_EXPERIMENTAL_PROXY */ - -/* _________________________________________________________________ -** -** Extra Server Certificate Chain Support -** _________________________________________________________________ -*/ - -/* - * Read a file that optionally contains the server certificate in PEM - * format, possibly followed by a sequence of CA certificates that - * should be sent to the peer in the SSL Certificate message. - */ -int SSL_CTX_use_certificate_chain( - SSL_CTX *ctx, char *file, int skipfirst, int (*cb)()) -{ - BIO *bio; - X509 *x509; - unsigned long err; - int n; - - if ((bio = BIO_new(BIO_s_file_internal())) == NULL) - return -1; - if (BIO_read_filename(bio, file) <= 0) { - BIO_free(bio); - return -1; - } - /* optionally skip a leading server certificate */ - if (skipfirst) { -#if SSL_LIBRARY_VERSION < 0x00904000 - if ((x509 = PEM_read_bio_X509(bio, NULL, cb)) == NULL) { -#else - if ((x509 = PEM_read_bio_X509(bio, NULL, cb, NULL)) == NULL) { -#endif - BIO_free(bio); - return -1; - } - X509_free(x509); - } - /* free a perhaps already configured extra chain */ - if (ctx->extra_certs != NULL) { - sk_X509_pop_free(ctx->extra_certs, X509_free); - ctx->extra_certs = NULL; - } - /* create new extra chain by loading the certs */ - n = 0; -#if SSL_LIBRARY_VERSION < 0x00904000 - while ((x509 = PEM_read_bio_X509(bio, NULL, cb)) != NULL) { -#else - while ((x509 = PEM_read_bio_X509(bio, NULL, cb, NULL)) != NULL) { -#endif - if (!SSL_CTX_add_extra_chain_cert(ctx, x509)) { - X509_free(x509); - BIO_free(bio); - return -1; - } - n++; - } - /* Make sure that only the error is just an EOF */ - if ((err = ERR_peek_error()) > 0) { - if (!( ERR_GET_LIB(err) == ERR_LIB_PEM - && ERR_GET_REASON(err) == PEM_R_NO_START_LINE)) { - BIO_free(bio); - return -1; - } - while (ERR_get_error() > 0) ; - } - BIO_free(bio); - return n; -} - -/* _________________________________________________________________ -** -** Session Stuff -** _________________________________________________________________ -*/ - -char *SSL_SESSION_id2sz(unsigned char *id, int idlen) -{ - static char str[(SSL_MAX_SSL_SESSION_ID_LENGTH+1)*2]; - char *cp; - int n; - - cp = str; - for (n = 0; n < idlen && n < SSL_MAX_SSL_SESSION_ID_LENGTH; n++) { - ap_snprintf(cp, sizeof(str)-(cp-str), "%02X", id[n]); - cp += 2; - } - *cp = NUL; - return str; -} - |