+++ /dev/null
-/*
-
- silcasn1.c
-
- Author: Pekka Riikonen <priikone@silcnet.org>
-
- Copyright (C) 2003 - 2007 Pekka Riikonen
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; version 2 of the License.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
-*/
-
-#include "silc.h"
-#include "silcasn1.h"
-#include "silcber.h"
-
-/* Allocate ASN.1 context. */
-
-SilcAsn1 silc_asn1_alloc(SilcStack stack)
-{
- SilcAsn1 asn1;
- SilcStack stack1;
-
- stack1 = silc_stack_alloc(0, stack);
- if (!stack1)
- return NULL;
-
- /* Allocate itself from the stack */
- asn1 = silc_scalloc(stack1, 1, sizeof(*asn1));
- if (!asn1) {
- silc_stack_free(stack1);
- return NULL;
- }
-
- asn1->orig_stack = stack;
- asn1->stack1 = stack1;
- asn1->stack2 = silc_stack_alloc(0, stack);
- if (!asn1->stack2) {
- silc_stack_free(stack1);
- return NULL;
- }
-
- asn1->accumul = 0;
-
- return asn1;
-}
-
-/* Free ASN.1 context */
-
-void silc_asn1_free(SilcAsn1 asn1)
-{
- silc_asn1_uninit(asn1);
-}
-
-/* Init pre-allocated ASN.1 context */
-
-SilcBool silc_asn1_init(SilcAsn1 asn1, SilcStack stack)
-{
- asn1->orig_stack = stack;
-
- asn1->stack1 = silc_stack_alloc(0, stack);
- if (!asn1->stack1)
- return FALSE;
-
- asn1->stack2 = silc_stack_alloc(0, stack);
- if (!asn1->stack2) {
- silc_stack_free(asn1->stack1);
- return FALSE;
- }
-
- asn1->accumul = 0;
-
- return TRUE;
-}
-
-/* Uninit ASN.1 context */
-
-void silc_asn1_uninit(SilcAsn1 asn1)
-{
- SilcStack stack1 = asn1->stack1;
-
- if (asn1->switched) {
- stack1 = asn1->stack2;
- asn1->stack2 = asn1->stack1;
- }
-
- silc_stack_free(asn1->stack2);
- silc_stack_free(stack1);
-}
-
-#if defined(SILC_DEBUG)
-/* Returns string representation of a tag */
-
-const char *silc_asn1_tag_name(SilcAsn1Tag tag)
-{
- switch (tag) {
- case SILC_ASN1_END:
- return "END";
- case SILC_ASN1_TAG_OPTS:
- return "";
- case SILC_ASN1_TAG_CHOICE:
- return "choice";
- case SILC_ASN1_TAG_ANY:
- return "any";
- case SILC_ASN1_TAG_ANY_PRIMITIVE:
- return "any primitive";
- case SILC_ASN1_TAG_SEQUENCE_OF:
- return "sequence of";
- case SILC_ASN1_TAG_SEQUENCE:
- return "sequence";
- case SILC_ASN1_TAG_SET:
- return "set";
- case SILC_ASN1_TAG_INTEGER:
- return "integer";
- case SILC_ASN1_TAG_SHORT_INTEGER:
- return "short integer";
- case SILC_ASN1_TAG_OID:
- return "oid";
- case SILC_ASN1_TAG_BOOLEAN:
- return "boolean";
- case SILC_ASN1_TAG_OCTET_STRING:
- return "octet-string";
- case SILC_ASN1_TAG_BIT_STRING:
- return "bit-string";
- case SILC_ASN1_TAG_NULL:
- return "null";
- case SILC_ASN1_TAG_ENUM:
- return "enum";
- case SILC_ASN1_TAG_UTC_TIME:
- return "utc-time";
- case SILC_ASN1_TAG_GENERALIZED_TIME:
- return "generalized-time";
- case SILC_ASN1_TAG_UTF8_STRING:
- return "utf8-string";
- case SILC_ASN1_TAG_NUMERIC_STRING:
- return "numeric-string";
- case SILC_ASN1_TAG_PRINTABLE_STRING:
- return "printable-string";
- case SILC_ASN1_TAG_IA5_STRING:
- return "ia5-string";
- case SILC_ASN1_TAG_VISIBLE_STRING:
- return "visible-string";
- case SILC_ASN1_TAG_UNIVERSAL_STRING:
- return "universal-string";
- case SILC_ASN1_TAG_UNRESTRICTED_STRING:
- return "unrestricted-string";
- case SILC_ASN1_TAG_BMP_STRING:
- return "bmp-string";
- case SILC_ASN1_TAG_ODE:
- return "ode";
- case SILC_ASN1_TAG_ETI:
- return "eti";
- case SILC_ASN1_TAG_REAL:
- return "real";
- case SILC_ASN1_TAG_EMBEDDED:
- return "embedded";
- case SILC_ASN1_TAG_ROI:
- return "roi";
- case SILC_ASN1_TAG_TELETEX_STRING:
- return "teletex-string";
- case SILC_ASN1_TAG_VIDEOTEX_STRING:
- return "videotex-string";
- case SILC_ASN1_TAG_GRAPHIC_STRING:
- return "graphic-string";
- case SILC_ASN1_TAG_GENERAL_STRING:
- return "general-string";
- default:
- break;
- }
- return "unknown";
-}
-#endif /* SILC_DEBUG */
-
-#ifdef SILC_DIST_TOOLKIT
-#ifdef SILC_DEBUG
-/* Dumps the ASN.1 data block into standard output (stdout). */
-
-SilcBool silc_asn1_dump(SilcAsn1 asn1, SilcBuffer src)
-{
- SilcBool ret = FALSE;
- SilcBerEncoding renc;
- SilcUInt32 rtag;
- const unsigned char *rdata;
- SilcUInt32 rdata_len, len = 0;
- SilcBool rindef;
-
- SILC_LOG_DEBUG(("Dumping ASN.1"));
-
- while (silc_buffer_len(src)) {
- /* Decode the BER block */
- ret = silc_ber_decode(src, NULL, &renc, &rtag, &rdata,
- &rdata_len, &rindef, &len);
- if (!ret) {
- SILC_LOG_DEBUG(("Error parsing BER block, malformed ASN.1 data"));
- return FALSE;
- }
-
- fprintf(stdout, "Type %s [%d]\n",
- silc_asn1_tag_name(rtag), (int)rtag);
-
- if (renc == SILC_BER_ENC_PRIMITIVE)
- len = len + rdata_len;
- else
- len = len;
-
- if (len)
- silc_buffer_pull(src, len);
- }
-
- return TRUE;
-}
-#endif /* SILC_DEBUG */
-#endif /* SILC_DIST_TOOLKIT */
projects / silc.git / blobdiff