From d7d5a55d222d17defc09aeb3947e7d5c8cdf36a5 Mon Sep 17 00:00:00 2001 From: "Dr. Stephen Henson" Date: Mon, 13 Dec 2010 18:15:28 +0000 Subject: Support routines for ASN1 scanning function, doesn't do much yet. --- crypto/asn1/Makefile | 4 +- crypto/asn1/a_verify.c | 2 +- crypto/asn1/asn1.h | 8 ++++ crypto/asn1/asn1_locl.h | 26 +++++++++++ crypto/asn1/tasn_scn.c | 117 ++++++++++++++++++++++++++++++++++++++++++++++++ crypto/asn1/x_crl.c | 2 +- 6 files changed, 155 insertions(+), 4 deletions(-) create mode 100644 crypto/asn1/tasn_scn.c (limited to 'crypto/asn1') diff --git a/crypto/asn1/Makefile b/crypto/asn1/Makefile index 160544eede..8736a8a3e8 100644 --- a/crypto/asn1/Makefile +++ b/crypto/asn1/Makefile @@ -25,7 +25,7 @@ LIBSRC= a_object.c a_bitstr.c a_utctm.c a_gentm.c a_time.c a_int.c a_octet.c \ x_nx509.c d2i_pu.c d2i_pr.c i2d_pu.c i2d_pr.c\ t_req.c t_x509.c t_x509a.c t_crl.c t_pkey.c t_spki.c t_bitst.c \ tasn_new.c tasn_fre.c tasn_enc.c tasn_dec.c tasn_utl.c tasn_typ.c \ - tasn_prn.c ameth_lib.c \ + tasn_prn.c tasn_scn.c ameth_lib.c \ f_int.c f_string.c n_pkey.c \ f_enum.c x_pkey.c a_bool.c x_exten.c bio_asn1.c bio_ndef.c asn_mime.c \ asn1_gen.c asn1_par.c asn1_lib.c asn1_err.c a_bytes.c a_strnid.c \ @@ -38,7 +38,7 @@ LIBOBJ= a_object.o a_bitstr.o a_utctm.o a_gentm.o a_time.o a_int.o a_octet.o \ x_nx509.o d2i_pu.o d2i_pr.o i2d_pu.o i2d_pr.o \ t_req.o t_x509.o t_x509a.o t_crl.o t_pkey.o t_spki.o t_bitst.o \ tasn_new.o tasn_fre.o tasn_enc.o tasn_dec.o tasn_utl.o tasn_typ.o \ - tasn_prn.o ameth_lib.o \ + tasn_prn.o tasn_scn.o ameth_lib.o \ f_int.o f_string.o n_pkey.o \ f_enum.o x_pkey.o a_bool.o x_exten.o bio_asn1.o bio_ndef.o asn_mime.o \ asn1_gen.o asn1_par.o asn1_lib.o asn1_err.o a_bytes.o a_strnid.o \ diff --git a/crypto/asn1/a_verify.c b/crypto/asn1/a_verify.c index 432722e409..807587e628 100644 --- a/crypto/asn1/a_verify.c +++ b/crypto/asn1/a_verify.c @@ -60,7 +60,6 @@ #include #include "cryptlib.h" -#include "asn1_locl.h" #ifndef NO_SYS_TYPES_H # include @@ -71,6 +70,7 @@ #include #include #include +#include "asn1_locl.h" #ifndef NO_ASN1_OLD diff --git a/crypto/asn1/asn1.h b/crypto/asn1/asn1.h index 674eec8fe9..28bd21273d 100644 --- a/crypto/asn1/asn1.h +++ b/crypto/asn1/asn1.h @@ -1130,6 +1130,14 @@ void ASN1_PCTX_set_oid_flags(ASN1_PCTX *p, unsigned long flags); unsigned long ASN1_PCTX_get_str_flags(ASN1_PCTX *p); void ASN1_PCTX_set_str_flags(ASN1_PCTX *p, unsigned long flags); +ASN1_SCTX *ASN1_SCTX_new(int (*scan_cb)(ASN1_SCTX *ctx)); +void ASN1_SCTX_free(ASN1_SCTX *p); +const ASN1_ITEM *ASN1_SCTX_get_item(ASN1_SCTX *p); +const ASN1_TEMPLATE * ASN1_SCTX_get_template(ASN1_SCTX *p); +unsigned long ASN1_SCTX_get_flags(ASN1_SCTX *p); +void ASN1_SCTX_set_app_data(ASN1_SCTX *p, void *data); +void *ASN1_SCTX_get_app_data(ASN1_SCTX *p); + BIO_METHOD *BIO_f_asn1(void); BIO *BIO_new_NDEF(BIO *out, ASN1_VALUE *val, const ASN1_ITEM *it); diff --git a/crypto/asn1/asn1_locl.h b/crypto/asn1/asn1_locl.h index 9fcf0d9530..c4c0c9d41e 100644 --- a/crypto/asn1/asn1_locl.h +++ b/crypto/asn1/asn1_locl.h @@ -69,6 +69,32 @@ struct asn1_pctx_st unsigned long str_flags; } /* ASN1_PCTX */; +/* ASN1 scan context structure */ + +struct asn1_sctx_st + { + /* The ASN1_ITEM associated with this field */ + const ASN1_ITEM *it; + /* If ASN1_TEMPLATE associated with this field */ + const ASN1_TEMPLATE *tt; + /* Various flags associated with field and context */ + unsigned long flags; + /* If SEQUENCE OF or SET OF, field index */ + int skidx; + /* ASN1 depth of field */ + int depth; + /* Structure and field name */ + const char *sname, *fname; + /* If a primitive type the type of underlying field */ + int prim_type; + /* The field value itself */ + ASN1_VALUE **field; + /* Callback to pass information to */ + int (*scan_cb)(ASN1_SCTX *ctx); + /* Context specific application data */ + void *app_data; + } /* ASN1_SCTX */; + /* ASN1 public key method structure */ struct evp_pkey_asn1_method_st diff --git a/crypto/asn1/tasn_scn.c b/crypto/asn1/tasn_scn.c new file mode 100644 index 0000000000..97291790cd --- /dev/null +++ b/crypto/asn1/tasn_scn.c @@ -0,0 +1,117 @@ +/* tasn_scn.c */ +/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL + * project 2010. + */ +/* ==================================================================== + * Copyright (c) 2010 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). + * + */ + + +#include +#include "cryptlib.h" +#include +#include +#include +#include +#include +#include +#include "asn1_locl.h" + +/* General ASN1 structure recursive scanner: iterate through all + * fields passing details to a callback. + */ + +ASN1_SCTX *ASN1_SCTX_new(int (*scan_cb)(ASN1_SCTX *ctx)) + { + ASN1_SCTX *ret; + ret = OPENSSL_malloc(sizeof(ASN1_SCTX)); + if (ret == NULL) + { + ASN1err(ASN1_F_ASN1_PCTX_NEW, ERR_R_MALLOC_FAILURE); + return NULL; + } + ret->scan_cb = scan_cb; + return ret; + } + +void ASN1_SCTX_free(ASN1_SCTX *p) + { + OPENSSL_free(p); + } + +const ASN1_ITEM *ASN1_SCTX_get_item(ASN1_SCTX *p) + { + return p->it; + } + +const ASN1_TEMPLATE * ASN1_SCTX_get_template(ASN1_SCTX *p) + { + return p->tt; + } + +unsigned long ASN1_SCTX_get_flags(ASN1_SCTX *p) + { + return p->flags; + } + +void ASN1_SCTX_set_app_data(ASN1_SCTX *p, void *data) + { + p->app_data = data; + } + +void *ASN1_SCTX_get_app_data(ASN1_SCTX *p) + { + return p->app_data; + } + + diff --git a/crypto/asn1/x_crl.c b/crypto/asn1/x_crl.c index c51c690ba9..137aa2180f 100644 --- a/crypto/asn1/x_crl.c +++ b/crypto/asn1/x_crl.c @@ -58,8 +58,8 @@ #include #include "cryptlib.h" -#include "asn1_locl.h" #include +#include "asn1_locl.h" #include #include -- cgit v1.2.3