From 40bd67e3d20294445ca126effad0d42c665c4e2d Mon Sep 17 00:00:00 2001 From: Johan Danielsson Date: Mon, 17 Mar 1997 10:40:20 +0000 Subject: [PATCH] Moved a lot of code to gen_{encode,decode,free,length,copy}.c. git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@1453 ec53bebd-3082-4978-b11e-865c3cabbd6b --- lib/asn1/gen.c | 755 +------------------------------------------------ 1 file changed, 5 insertions(+), 750 deletions(-) diff --git a/lib/asn1/gen.c b/lib/asn1/gen.c index 111663820..4c2d4bc4c 100644 --- a/lib/asn1/gen.c +++ b/lib/asn1/gen.c @@ -1,13 +1,6 @@ -#ifdef HAVE_CONFIG_H -#include -#endif -RCSID("$Id$"); +#include "asn1_locl.h" -#include -#include -#include -#include "der.h" -#include "gen.h" +RCSID("$Id$"); FILE *headerfile, *codefile, *logfile; @@ -137,752 +130,12 @@ generate_type_header (Symbol *s) fprintf (headerfile, "\n"); } -static void -encode_primitive (char *typename, char *name) -{ - fprintf (codefile, - "l = encode_%s(p, len, %s);\n" - "if(l < 0)\n" - "return l;\n" - "p -= l;\n" - "len -= l;\n" - "ret += l;\n\n", - typename, - name); -} - -static void -encode_type (char *name, Type *t) -{ - switch (t->type) { - case TType: -#if 0 - encode_type (name, t->symbol->type); -#endif - fprintf (codefile, - "l = encode_%s(p, len, %s);\n" - "if(l < 0)\n" - "return l;\n" - "p -= l;\n" - "len -= l;\n" - "ret += l;\n\n", - t->symbol->gen_name, name); - break; - case TInteger: - encode_primitive ("integer", name); - break; - case TOctetString: - encode_primitive ("octet_string", name); - break; - case TBitString: { - Member *m; - int pos; - int rest; - int tag = -1; - - if (t->members == NULL) - break; - - fprintf (codefile, "{\n" - "unsigned char c = 0;\n"); - pos = t->members->prev->val; - /* fix for buggy MIT (and OSF?) code */ - if (pos > 31) - abort (); - /* - * It seems that if we do not always set pos to 31 here, the MIT - * code will do the wrong thing. - * - * I hate ASN.1 (and DER), but I hate it even more when everybody - * has to screw it up differently. - */ - pos = 31; - rest = 7 - (pos % 8); - - for (m = t->members->prev; m && tag != m->val; m = m->prev) { - while (m->val / 8 < pos / 8) { - fprintf (codefile, - "*p-- = c; len--; ret++;\n" - "c = 0;\n"); - pos -= 8; - } - fprintf (codefile, - "if(%s->%s) c |= 1<<%d;\n", name, m->gen_name, - 7 - m->val % 8); - - if (tag == -1) - tag = m->val; - } - - fprintf (codefile, - "*p-- = c;\n" - "*p-- = %d;\n" - "len -= 2;\n" - "ret += 2;\n" - "}\n\n" - "l = der_put_length_and_tag (p, len, ret, UNIV, PRIM," - "UT_BitString);\n" - "if(l < 0)\n" - " return l;\n" - "p -= l;\n" - "len -= l;\n" - "ret += l;\n\n", - rest); - break; - } - case TSequence: { - Member *m; - int tag = -1; - - if (t->members == NULL) - break; - - for (m = t->members->prev; m && tag != m->val; m = m->prev) { - char *s = malloc(2 + strlen(name) + 1 + strlen(m->gen_name) + 3); - - sprintf (s, "%s(%s)->%s", m->optional ? "" : "&", name, m->gen_name); - if (m->optional) - fprintf (codefile, - "if(%s)\n", - s); -#if 1 - fprintf (codefile, "{\n" - "int oldret = ret;\n" - "ret = 0;\n"); -#endif - encode_type (s, m->type); - fprintf (codefile, - "l = der_put_length_and_tag (p, len, ret, CONTEXT, CONS, %d);\n" - "if (l < 0)\n" - "return l;\n" - "p -= l;\n" - "len -= l;\n" - "ret += l;\n\n", - m->val); -#if 1 - fprintf (codefile, - "ret += oldret;\n" - "}\n"); -#endif - if (tag == -1) - tag = m->val; - free (s); - } - fprintf (codefile, - "l = der_put_length_and_tag (p, len, ret, UNIV, CONS, UT_Sequence);\n" - "if(l < 0)\n" - " return l;\n" - "p -= l;\n" - "len -= l;\n" - "ret += l;\n\n"); - break; - } - case TSequenceOf: { - char *n = malloc(strlen(name) + 12); - - fprintf (codefile, - "for(i = (%s)->len - 1; i >= 0; --i) {\n" -#if 1 - "int oldret = ret;\n" - "ret = 0;\n", -#else - , -#endif - name); - sprintf (n, "&(%s)->val[i]", name); - encode_type (n, t->subtype); - fprintf (codefile, -#if 1 - "ret += oldret;\n" -#endif - "}\n" - "l = der_put_length_and_tag (p, len, ret, UNIV, CONS, UT_Sequence);\n" - "if(l < 0)\n" - " return l;\n" - "p -= l;\n" - "len -= l;\n" - "ret += l;\n\n"); - free (n); - break; - } - case TGeneralizedTime: - encode_primitive ("generalized_time", name); - break; - case TGeneralString: - encode_primitive ("general_string", name); - break; - case TApplication: - encode_type (name, t->subtype); - fprintf (codefile, - "l = der_put_length_and_tag (p, len, ret, APPL, CONS, %d);\n" - "if(l < 0)\n" - " return l;\n" - "p -= l;\n" - "len -= l;\n" - "ret += l;\n\n", - t->application); - break; - default: - abort (); - } -} - -static void -generate_type_encode (Symbol *s) -{ - fprintf (headerfile, - "int encode_%s(unsigned char *, int, %s *);\n", - s->gen_name, s->gen_name); - - fprintf (codefile, "int\n" - "encode_%s(unsigned char *p, int len, %s *data)\n" - "{\n", - s->gen_name, s->gen_name); - - switch (s->type->type) { - case TInteger: - fprintf (codefile, "return encode_integer (p, len, data);\n"); - break; - case TOctetString: - fprintf (codefile, "return encode_octet_string (p, len, data);\n"); - break; - case TGeneralizedTime: - fprintf (codefile, "return encode_generalized_time (p, len, data);\n"); - break; - case TGeneralString: - fprintf (codefile, "return encode_general_string (p, len, data);\n"); - break; - case TBitString: - case TSequence: - case TSequenceOf: - case TApplication: - case TType: - fprintf (codefile, - "int ret = 0;\n" - "int l, i;\n\n"); - - encode_type ("data", s->type); - fprintf (codefile, "return ret;\n"); - break; - default: - abort (); - } - fprintf (codefile, "}\n\n"); -} - -static void -decode_primitive (char *typename, char *name) -{ - fprintf (codefile, - "l = decode_%s(p, len, %s);\n" - "if(l < 0)\n" - "return l;\n" - "p += l;\n" - "len -= l;\n" - "ret += l;\n\n", - typename, - name); -} - -static void -decode_type (char *name, Type *t) -{ - switch (t->type) { - case TType: -#if 0 - decode_type (name, t->symbol->type); -#endif - fprintf (codefile, - "l = decode_%s(p, len, %s);\n" - "if(l < 0)\n" - "return l;\n" - "p += l;\n" - "len -= l;\n" - "ret += l;\n\n", - t->symbol->gen_name, name); - break; - case TInteger: - decode_primitive ("integer", name); - break; - case TOctetString: - decode_primitive ("octet_string", name); - break; - case TBitString: { - Member *m; - int tag = -1; - int pos; - - fprintf (codefile, - "l = der_match_tag_and_length (p, len, UNIV, PRIM, UT_BitString," - "&reallen);\n" - "if(l < 0)\n" - "return l;\n" - "p += l;\n" - "len -= l;\n" - "ret += l;\n" - "if(len < reallen)\n" - "return -1;\n" - "p++;\n" - "len--;\n" - "reallen--;\n" - "ret++;\n"); - pos = 0; - for (m = t->members; m && tag != m->val; m = m->next) { - while (m->val / 8 > pos / 8) { - fprintf (codefile, - "p++; len--; reallen--; ret++;\n"); - pos += 8; - } - fprintf (codefile, - "%s->%s = (*p >> %d) & 1;\n", - name, m->gen_name, 7 - m->val % 8); - if (tag == -1) - tag = m->val; - } - fprintf (codefile, - "p += reallen; len -= reallen; ret += reallen;\n"); - break; - } - case TSequence: { - Member *m; - int tag = -1; - - if (t->members == NULL) - break; - - fprintf (codefile, - "l = der_match_tag_and_length (p, len, UNIV, CONS, UT_Sequence," - "&reallen);\n" - "if(l < 0)\n" - "return l;\n" - "p += l;\n" - "len -= l;\n" - "ret += l;\n" - "{\n" - "int dce_fix = 0;\n" - "if(reallen == 0)\n" - "dce_fix = 1;\n" - "if(!dce_fix && len < reallen)\n" - "return -1;\n" - "if(!dce_fix)\n" - "len = reallen;\n"); - - for (m = t->members; m && tag != m->val; m = m->next) { - char *s = malloc(2 + strlen(name) + 1 + strlen(m->gen_name) + 3); - - sprintf (s, "%s(%s)->%s", m->optional ? "" : "&", name, m->gen_name); - fprintf (codefile, "{\n" - "int newlen, oldlen;\n\n" - "l = der_match_tag (p, len, CONTEXT, CONS, %d);\n", - m->val); - fprintf (codefile, - "if(l >= 0) {\n" - "p += l;\n" - "len -= l;\n" - "ret += l;\n" - "l = der_get_length (p, len, &newlen);\n" - "if(l < 0)\n" - "return l;\n" - "p += l;\n" - "len -= l;\n" - "ret += l;\n" - "{\n" - "int dce_fix = 0;\n" - "if(newlen == 0)\n" - "dce_fix = 1;\n" - "if(!dce_fix && len < newlen)\n" - "return -1;\n" - "oldlen = len;\n" - "if(!dce_fix)\n" - "len = newlen;\n"); - if (m->optional) - fprintf (codefile, - "%s = malloc(sizeof(*%s));\n", - s, s); - decode_type (s, m->type); - fprintf (codefile, - "if(dce_fix){\n" - "l = der_match_tag_and_length (p, len, 0, 0, 0, &reallen);\n" - "if(l < 0) return l;\n" - "p += l;\n" - "len -= l;\n" - "ret += l;\n" - "}else \n" - "len = oldlen - newlen;\n" - "}\n" - "}\n" - "else {\n"); - if(m->optional) - fprintf (codefile, - "%s = NULL;\n" - "}\n", s); - else - fprintf (codefile, - "return l;\n" - "}\n"); - fprintf (codefile, - "}\n"); - if (tag == -1) - tag = m->val; - free (s); - } - fprintf(codefile, - "if(dce_fix){\n" - "l = der_match_tag_and_length (p, len, 0, 0, 0, &reallen);\n" - "if(l < 0) return l;\n" - "p += l;\n" - "len -= l;\n" - "ret += l;\n" - "}\n" - "}\n"); - - break; - } - case TSequenceOf: { - char *n = malloc(2*strlen(name) + 20); - - fprintf (codefile, - "l = der_match_tag_and_length (p, len, UNIV, CONS, UT_Sequence," - "&reallen);\n" - "if(l < 0)\n" - "return l;\n" - "p += l;\n" - "len -= l;\n" - "ret += l;\n" - "if(len < reallen)\n" - "return -1;\n" - "len = reallen;\n"); - - fprintf (codefile, - "(%s)->len = 0;\n" - "(%s)->val = NULL;\n" - "while(len > 0) {\n" - "(%s)->len++;\n" - "(%s)->val = realloc((%s)->val, sizeof(*((%s)->val)) * (%s)->len);\n", - name, name, name, name, name, name, name); - sprintf (n, "&(%s)->val[(%s)->len-1]", name, name); - decode_type (n, t->subtype); - fprintf (codefile, - "}\n"); - free (n); - break; - } - case TGeneralizedTime: - decode_primitive ("generalized_time", name); - break; - case TGeneralString: - decode_primitive ("general_string", name); - break; - case TApplication: - fprintf (codefile, - "l = der_match_tag_and_length (p, len, APPL, CONS, %d, &reallen);\n" - "if(l < 0)\n" - "return l;\n" - "p += l;\n" - "len -= l;\n" - "ret += l;\n" - "{\n" - "int dce_fix = 0;\n" - "if(reallen == 0)\n" - "dce_fix = 1;\n" - "if(!dce_fix && len < reallen)\n" - "return -1;\n" - "if(!dce_fix)\n" - "len = reallen;\n", - t->application); - decode_type (name, t->subtype); - fprintf(codefile, - "if(dce_fix){\n" - "l = der_match_tag_and_length (p, len, 0, 0, 0, &reallen);\n" - "if(l < 0) return l;\n" - "p += l;\n" - "len -= l;\n" - "ret += l;\n" - "}\n" - "}\n"); - - break; - default : - abort (); - } -} - -static void -generate_type_decode (Symbol *s) -{ - fprintf (headerfile, - "int decode_%s(unsigned char *, int, %s *);\n", - s->gen_name, s->gen_name); - - fprintf (codefile, "int\n" - "decode_%s(unsigned char *p, int len, %s *data)\n" - "{\n", - s->gen_name, s->gen_name); - - switch (s->type->type) { - case TInteger: - fprintf (codefile, "return decode_integer (p, len, data);\n"); - break; - case TOctetString: - fprintf (codefile, "return decode_octet_string (p, len, data);\n"); - break; - case TGeneralizedTime: - fprintf (codefile, "return decode_generalized_time (p, len, data);\n"); - break; - case TGeneralString: - fprintf (codefile, "return decode_general_string (p, len, data);\n"); - break; - case TBitString: - case TSequence: - case TSequenceOf: - case TApplication: - case TType: - fprintf (codefile, - "int ret = 0, reallen;\n" - "int l, i;\n\n"); - - decode_type ("data", s->type); - fprintf (codefile, "return ret;\n"); - break; - default: - abort (); - } - fprintf (codefile, "}\n\n"); -} - -#if 0 -static void -generate_type_decode (Symbol *s) -{ - fprintf (headerfile, - "int decode_%s(unsigned char *, int, %s *);\n", - s->gen_name, s->gen_name); - - fprintf (codefile, "int\n" - "decode_%s(unsigned char *p, int len, %s *data)\n" - "{\n" - "int ret = 0, reallen;\n" - "int l, i;\n\n", - s->gen_name, s->gen_name); - - decode_type ("data", s->type); - fprintf (codefile, "return ret;\n" - "}\n\n"); -} -#endif - -static void -free_primitive (char *typename, char *name) -{ - fprintf (codefile, "free_%s(%s);\n", typename, name); -} - -static void -free_type (char *name, Type *t) -{ - switch (t->type) { - case TType: -#if 0 - free_type (name, t->symbol->type); -#endif - fprintf (codefile, "free_%s(%s);\n", t->symbol->gen_name, name); - break; - case TInteger: - free_primitive ("integer", name); - break; - case TOctetString: - free_primitive ("octet_string", name); - break; - case TBitString: { - break; - } - case TSequence: { - Member *m; - int tag = -1; - - if (t->members == NULL) - break; - - for (m = t->members; m && tag != m->val; m = m->next) { - char *s = malloc(2 + strlen(name) + 1 + strlen(m->gen_name) + 3); - - sprintf (s, "%s(%s)->%s", m->optional ? "" : "&", name, m->gen_name); - if(m->optional) - fprintf(codefile, "if(%s) {\n", s); - free_type (s, m->type); - if(m->optional) - fprintf(codefile, - "free(%s);\n" - "}\n",s); - if (tag == -1) - tag = m->val; - free (s); - } - break; - } - case TSequenceOf: { - char *n = malloc(2*strlen(name) + 20); - - fprintf (codefile, "while((%s)->len){\n", name); - sprintf (n, "&(%s)->val[(%s)->len-1]", name, name); - free_type(n, t->subtype); - fprintf(codefile, - "(%s)->len--;\n" - "}\n", - name); - fprintf(codefile, - "free((%s)->val);\n", name); - free(n); - break; - } - case TGeneralizedTime: - free_primitive ("generalized_time", name); - break; - case TGeneralString: - free_primitive ("general_string", name); - break; - case TApplication: - free_type (name, t->subtype); - break; - default : - abort (); - } -} - -static void -generate_type_free (Symbol *s) -{ - fprintf (headerfile, - "void free_%s(%s *);\n", - s->gen_name, s->gen_name); - - fprintf (codefile, "void\n" - "free_%s(%s *data)\n" - "{\n", - s->gen_name, s->gen_name); - - free_type ("data", s->type); - fprintf (codefile, "}\n\n"); -} - -static void -length_primitive (char *typename, char *name, char *variable) -{ - fprintf (codefile, "%s += length_%s(%s);\n", variable, typename, name); -} - -static void -length_type (char *name, Type *t, char *variable) -{ - switch (t->type) { - case TType: -#if 0 - length_type (name, t->symbol->type); -#endif - fprintf (codefile, "%s += length_%s(%s);\n", - variable, t->symbol->gen_name, name); - break; - case TInteger: - length_primitive ("integer", name, variable); - break; - case TOctetString: - length_primitive ("octet_string", name, variable); - break; - case TBitString: { - /* - * XXX - Hope this is correct - * look at TBitString case in `encode_type' - */ - fprintf (codefile, "%s += 7;\n", variable); - break; - } - case TSequence: { - Member *m; - int tag = -1; - - if (t->members == NULL) - break; - - for (m = t->members; m && tag != m->val; m = m->next) { - char *s = malloc(2 + strlen(name) + 1 + strlen(m->gen_name) + 3); - - sprintf (s, "%s(%s)->%s", m->optional ? "" : "&", name, m->gen_name); - if (m->optional) - fprintf (codefile, "if(%s)", s); - fprintf (codefile, "{\n" - "int oldret = %s;\n" - "%s = 0;\n", variable, variable); - length_type (s, m->type, "ret"); - fprintf (codefile, "%s += 1 + length_len(%s) + oldret;\n", - variable, variable); - fprintf (codefile, "}\n"); - if (tag == -1) - tag = m->val; - free (s); - } - fprintf (codefile, - "%s += 1 + length_len(%s);\n", variable, variable); - break; - } - case TSequenceOf: { - char *n = malloc(2*strlen(name) + 20); - - fprintf (codefile, - "{\n" - "int oldret = %s;\n" - "%s = 0;\n", variable, variable); - - fprintf (codefile, "while((%s)->len){\n", name); - sprintf (n, "&(%s)->val[(%s)->len-1]", name, name); - length_type(n, t->subtype, variable); - fprintf(codefile, - "(%s)->len--;\n" - "}\n", - name); - fprintf (codefile, - "%s += 1 + length_len(%s) + oldret;\n" - "}\n", variable, variable); - free(n); - break; - } - case TGeneralizedTime: - length_primitive ("generalized_time", name, variable); - break; - case TGeneralString: - length_primitive ("general_string", name, variable); - break; - case TApplication: - length_type (name, t->subtype, variable); - fprintf (codefile, "ret += 1 + length_len (ret);\n"); - break; - default : - abort (); - } -} - -static void -generate_type_length (Symbol *s) -{ - fprintf (headerfile, - "size_t length_%s(%s *);\n", - s->gen_name, s->gen_name); - - fprintf (codefile, - "size_t\n" - "length_%s(%s *data)\n" - "{\n" - "size_t ret = 0;\n", - s->gen_name, s->gen_name); - - length_type ("data", s->type, "ret"); - fprintf (codefile, "return ret;\n}\n\n"); -} void generate_type (Symbol *s) { char *filename = malloc(strlen(STEM) + strlen(s->gen_name) + 4); - sprintf(filename, "%s_%s.c", STEM, s->gen_name); + sprintf(filename, "%s_%s.x", STEM, s->gen_name); codefile = fopen (filename, "w"); if (codefile == NULL) { fprintf (stderr, "Could not create %s\n", filename); @@ -904,5 +157,7 @@ generate_type (Symbol *s) generate_type_decode (s); generate_type_free (s); generate_type_length (s); + generate_type_copy (s); + fprintf(headerfile, "\n\n"); fclose(codefile); }