diff options
Diffstat (limited to 'usr.bin/asn1_compile/gen.c')
| -rw-r--r-- | usr.bin/asn1_compile/gen.c | 464 |
1 files changed, 464 insertions, 0 deletions
diff --git a/usr.bin/asn1_compile/gen.c b/usr.bin/asn1_compile/gen.c new file mode 100644 index 00000000000..922d9317f08 --- /dev/null +++ b/usr.bin/asn1_compile/gen.c @@ -0,0 +1,464 @@ +/* + * Copyright (c) 1997 - 2002 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * 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. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS 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 INSTITUTE OR 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 "gen_locl.h" + +/* +RCSID("$KTH: gen.c,v 1.50 2003/04/17 07:09:18 lha Exp $"); +*/ + +FILE *headerfile, *codefile, *logfile; + +#define STEM "asn1" + +static const char *orig_filename; +static char *header; +static char *headerbase = STEM; + +/* + * list of all IMPORTs + */ + +struct import { + const char *module; + struct import *next; +}; + +static struct import *imports = NULL; + +void +add_import (const char *module) +{ + struct import *tmp = malloc (sizeof(*tmp)); + if(tmp == NULL) + errx(1, "Out of memory"); + + tmp->module = module; + tmp->next = imports; + imports = tmp; +} + +const char * +filename (void) +{ + return orig_filename; +} + +void +init_generate (const char *filename, const char *base) +{ + orig_filename = filename; + if(base) + asprintf(&headerbase, "%s", base); + asprintf(&header, "%s.h", headerbase); + headerfile = fopen (header, "w"); + if (headerfile == NULL) + err (1, "open %s", header); + fprintf (headerfile, + "/* Generated from %s */\n" + "/* Do not edit */\n\n", + filename); + fprintf (headerfile, + "#ifndef __%s_h__\n" + "#define __%s_h__\n\n", headerbase, headerbase); + fprintf (headerfile, + "#include <stddef.h>\n" + "#include <time.h>\n\n"); +#ifndef HAVE_TIMEGM + fprintf (headerfile, "time_t timegm (struct tm*);\n\n"); +#endif + fprintf (headerfile, + "#ifndef __asn1_common_definitions__\n" + "#define __asn1_common_definitions__\n\n"); + fprintf (headerfile, + "typedef struct octet_string {\n" + " size_t length;\n" + " void *data;\n" + "} octet_string;\n\n"); + fprintf (headerfile, + "typedef char *general_string;\n\n" + ); + fprintf (headerfile, + "typedef struct oid {\n" + " size_t length;\n" + " unsigned *components;\n" + "} oid;\n\n"); + fputs("#define ASN1_MALLOC_ENCODE(T, B, BL, S, L, R) \\\n" + " do { \\\n" + " (BL) = length_##T((S)); \\\n" + " (B) = malloc((BL)); \\\n" + " if((B) == NULL) { \\\n" + " (R) = ENOMEM; \\\n" + " } else { \\\n" + " (R) = encode_##T(((unsigned char*)(B)) + (BL) - 1, (BL), \\\n" + " (S), (L)); \\\n" + " if((R) != 0) { \\\n" + " free((B)); \\\n" + " (B) = NULL; \\\n" + " } \\\n" + " } \\\n" + " } while (0)\n\n", + headerfile); + fprintf (headerfile, "#endif\n\n"); + logfile = fopen(STEM "_files", "w"); + if (logfile == NULL) + err (1, "open " STEM "_files"); +} + +void +close_generate (void) +{ + fprintf (headerfile, "#endif /* __%s_h__ */\n", headerbase); + + fclose (headerfile); + fprintf (logfile, "\n"); + fclose (logfile); +} + +void +generate_constant (const Symbol *s) +{ + fprintf (headerfile, "enum { %s = %d };\n\n", + s->gen_name, s->constant); +} + +static void +space(int level) +{ + while(level-- > 0) + fprintf(headerfile, " "); +} + +static void +define_asn1 (int level, Type *t) +{ + switch (t->type) { + case TType: + space(level); + fprintf (headerfile, "%s", t->symbol->name); + break; + case TInteger: + space(level); + fprintf (headerfile, "INTEGER"); + break; + case TUInteger: + space(level); + fprintf (headerfile, "UNSIGNED INTEGER"); + break; + case TOctetString: + space(level); + fprintf (headerfile, "OCTET STRING"); + break; + case TOID : + space(level); + fprintf(headerfile, "OBJECT IDENTIFIER"); + break; + case TBitString: { + Member *m; + int tag = -1; + + space(level); + fprintf (headerfile, "BIT STRING {\n"); + for (m = t->members; m && m->val != tag; m = m->next) { + if (tag == -1) + tag = m->val; + space(level + 1); + fprintf (headerfile, "%s(%d)%s\n", m->name, m->val, + m->next->val == tag?"":","); + + } + space(level); + fprintf (headerfile, "}"); + break; + } + case TEnumerated : { + Member *m; + int tag = -1; + + space(level); + fprintf (headerfile, "ENUMERATED {\n"); + for (m = t->members; m && m->val != tag; m = m->next) { + if (tag == -1) + tag = m->val; + space(level + 1); + fprintf (headerfile, "%s(%d)%s\n", m->name, m->val, + m->next->val == tag?"":","); + + } + space(level); + fprintf (headerfile, "}"); + break; + } + case TSequence: { + Member *m; + int tag; + int max_width = 0; + + space(level); + fprintf (headerfile, "SEQUENCE {\n"); + for (m = t->members, tag = -1; m && m->val != tag; m = m->next) { + if (tag == -1) + tag = m->val; + if(strlen(m->name) + (m->val > 9) > max_width) + max_width = strlen(m->name) + (m->val > 9); + } + max_width += 3 + 2; + if(max_width < 16) max_width = 16; + for (m = t->members, tag = -1 ; m && m->val != tag; m = m->next) { + int width; + if (tag == -1) + tag = m->val; + space(level + 1); + fprintf(headerfile, "%s[%d]", m->name, m->val); + width = max_width - strlen(m->name) - 3 - (m->val > 9) - 2; + fprintf(headerfile, "%*s", width, ""); + define_asn1(level + 1, m->type); + if(m->optional) + fprintf(headerfile, " OPTIONAL"); + if(m->next->val != tag) + fprintf (headerfile, ","); + fprintf (headerfile, "\n"); + } + space(level); + fprintf (headerfile, "}"); + break; + } + case TSequenceOf: { + space(level); + fprintf (headerfile, "SEQUENCE OF "); + define_asn1 (0, t->subtype); + break; + } + case TGeneralizedTime: + space(level); + fprintf (headerfile, "GeneralizedTime"); + break; + case TGeneralString: + space(level); + fprintf (headerfile, "GeneralString"); + break; + case TApplication: + fprintf (headerfile, "[APPLICATION %d] ", t->application); + define_asn1 (level, t->subtype); + break; + default: + abort (); + } +} + +static void +define_type (int level, char *name, Type *t, int typedefp) +{ + switch (t->type) { + case TType: + space(level); + fprintf (headerfile, "%s %s;\n", t->symbol->gen_name, name); + break; + case TInteger: + space(level); + if(t->members == NULL) { + fprintf (headerfile, "int %s;\n", name); + } else { + Member *m; + int tag = -1; + fprintf (headerfile, "enum %s {\n", typedefp ? name : ""); + for (m = t->members; m && m->val != tag; m = m->next) { + if(tag == -1) + tag = m->val; + space (level + 1); + fprintf(headerfile, "%s = %d%s\n", m->gen_name, m->val, + m->next->val == tag ? "" : ","); + } + fprintf (headerfile, "} %s;\n", name); + } + break; + case TUInteger: + space(level); + fprintf (headerfile, "unsigned int %s;\n", name); + break; + case TOctetString: + space(level); + fprintf (headerfile, "octet_string %s;\n", name); + break; + case TOID : + space(level); + fprintf (headerfile, "oid %s;\n", name); + break; + case TBitString: { + Member *m; + Type i; + int tag = -1; + + i.type = TUInteger; + space(level); + fprintf (headerfile, "struct %s {\n", typedefp ? name : ""); + for (m = t->members; m && m->val != tag; m = m->next) { + char *n; + + asprintf (&n, "%s:1", m->gen_name); + define_type (level + 1, n, &i, FALSE); + free (n); + if (tag == -1) + tag = m->val; + } + space(level); + fprintf (headerfile, "} %s;\n\n", name); + break; + } + case TEnumerated: { + Member *m; + int tag = -1; + + space(level); + fprintf (headerfile, "enum %s {\n", typedefp ? name : ""); + for (m = t->members; m && m->val != tag; m = m->next) { + if (tag == -1) + tag = m->val; + space(level + 1); + fprintf (headerfile, "%s = %d%s\n", m->gen_name, m->val, + m->next->val == tag ? "" : ","); + } + space(level); + fprintf (headerfile, "} %s;\n\n", name); + break; + } + case TSequence: { + Member *m; + int tag = -1; + + space(level); + fprintf (headerfile, "struct %s {\n", typedefp ? name : ""); + for (m = t->members; m && m->val != tag; m = m->next) { + if (m->optional) { + char *n; + + asprintf (&n, "*%s", m->gen_name); + define_type (level + 1, n, m->type, FALSE); + free (n); + } else + define_type (level + 1, m->gen_name, m->type, FALSE); + if (tag == -1) + tag = m->val; + } + space(level); + fprintf (headerfile, "} %s;\n", name); + break; + } + case TSequenceOf: { + Type i; + + i.type = TUInteger; + i.application = 0; + + space(level); + fprintf (headerfile, "struct %s {\n", typedefp ? name : ""); + define_type (level + 1, "len", &i, FALSE); + define_type (level + 1, "*val", t->subtype, FALSE); + space(level); + fprintf (headerfile, "} %s;\n", name); + break; + } + case TGeneralizedTime: + space(level); + fprintf (headerfile, "time_t %s;\n", name); + break; + case TGeneralString: + space(level); + fprintf (headerfile, "general_string %s;\n", name); + break; + case TApplication: + define_type (level, name, t->subtype, FALSE); + break; + default: + abort (); + } +} + +static void +generate_type_header (const Symbol *s) +{ + fprintf (headerfile, "/*\n"); + fprintf (headerfile, "%s ::= ", s->name); + define_asn1 (0, s->type); + fprintf (headerfile, "\n*/\n\n"); + + fprintf (headerfile, "typedef "); + define_type (0, s->gen_name, s->type, TRUE); + + fprintf (headerfile, "\n"); +} + + +void +generate_type (const Symbol *s) +{ + struct import *i; + char *filename; + + asprintf (&filename, "%s_%s.x", STEM, s->gen_name); + codefile = fopen (filename, "w"); + if (codefile == NULL) + err (1, "fopen %s", filename); + fprintf(logfile, "%s ", filename); + free(filename); + fprintf (codefile, + "/* Generated from %s */\n" + "/* Do not edit */\n\n" + "#include <stdio.h>\n" + "#include <stdlib.h>\n" + "#include <time.h>\n" + "#include <string.h>\n" + "#include <errno.h>\n", + orig_filename); + + for (i = imports; i != NULL; i = i->next) + fprintf (codefile, + "#include <%s_asn1.h>\n", + i->module); + fprintf (codefile, + "#include <%s.h>\n", + headerbase); + fprintf (codefile, + "#include <asn1_err.h>\n" + "#include <der.h>\n" + "#include <parse_units.h>\n\n"); + generate_type_header (s); + generate_type_encode (s); + generate_type_decode (s); + generate_type_free (s); + generate_type_length (s); + generate_type_copy (s); + generate_glue (s); + fprintf(headerfile, "\n\n"); + fclose(codefile); +} |