1 : /*
2 : * Copyright (c) 1997 - 2005 Kungliga Tekniska Högskolan
3 : * (Royal Institute of Technology, Stockholm, Sweden).
4 : * All rights reserved.
5 : *
6 : * Redistribution and use in source and binary forms, with or without
7 : * modification, are permitted provided that the following conditions
8 : * are met:
9 : *
10 : * 1. Redistributions of source code must retain the above copyright
11 : * notice, this list of conditions and the following disclaimer.
12 : *
13 : * 2. Redistributions in binary form must reproduce the above copyright
14 : * notice, this list of conditions and the following disclaimer in the
15 : * documentation and/or other materials provided with the distribution.
16 : *
17 : * 3. Neither the name of the Institute nor the names of its contributors
18 : * may be used to endorse or promote products derived from this software
19 : * without specific prior written permission.
20 : *
21 : * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 : * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 : * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 : * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 : * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 : * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 : * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 : * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 : * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 : * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 : * SUCH DAMAGE.
32 : */
33 :
34 : #include "gen_locl.h"
35 :
36 : RCSID("$Id$");
37 :
38 : static void
39 : length_primitive (const char *typename,
40 : const char *name,
41 : const char *variable)
42 280 : {
43 280 : fprintf (codefile, "%s += der_length_%s(%s);\n", variable, typename, name);
44 280 : }
45 :
46 : /* XXX same as der_length_tag */
47 : static size_t
48 : length_tag(unsigned int tag)
49 1002 : {
50 1002 : size_t len = 0;
51 :
52 1002 : if(tag <= 30)
53 1000 : return 1;
54 8 : while(tag) {
55 4 : tag /= 128;
56 4 : len++;
57 : }
58 2 : return len + 1;
59 : }
60 :
61 :
62 : static int
63 : length_type (const char *name, const Type *t,
64 : const char *variable, const char *tmpstr)
65 2025 : {
66 2025 : switch (t->type) {
67 : case TType:
68 : #if 0
69 : length_type (name, t->symbol->type);
70 : #endif
71 462 : fprintf (codefile, "%s += length_%s(%s);\n",
72 : variable, t->symbol->gen_name, name);
73 462 : break;
74 : case TInteger:
75 83 : if(t->members) {
76 16 : fprintf(codefile,
77 : "{\n"
78 : "int enumint = *%s;\n", name);
79 16 : length_primitive ("integer", "&enumint", variable);
80 16 : fprintf(codefile, "}\n");
81 67 : } else if (t->range == NULL) {
82 35 : length_primitive ("heim_integer", name, variable);
83 39 : } else if (t->range->min == INT_MIN && t->range->max == INT_MAX) {
84 7 : length_primitive ("integer", name, variable);
85 50 : } else if (t->range->min == 0 && t->range->max == UINT_MAX) {
86 25 : length_primitive ("unsigned", name, variable);
87 0 : } else if (t->range->min == 0 && t->range->max == INT_MAX) {
88 0 : length_primitive ("unsigned", name, variable);
89 : } else
90 0 : errx(1, "%s: unsupported range %d -> %d",
91 : name, t->range->min, t->range->max);
92 :
93 83 : break;
94 : case TBoolean:
95 8 : fprintf (codefile, "%s += 1;\n", variable);
96 8 : break;
97 : case TEnumerated :
98 0 : length_primitive ("enumerated", name, variable);
99 0 : break;
100 : case TOctetString:
101 96 : length_primitive ("octet_string", name, variable);
102 96 : break;
103 : case TBitString: {
104 22 : if (ASN1_TAILQ_EMPTY(t->members))
105 12 : length_primitive("bit_string", name, variable);
106 : else {
107 10 : if (!rfc1510_bitstring) {
108 : Member *m;
109 5 : int pos = ASN1_TAILQ_LAST(t->members, memhead)->val;
110 :
111 5 : fprintf(codefile,
112 : "do {\n");
113 54 : ASN1_TAILQ_FOREACH_REVERSE(m, t->members, memhead, members) {
114 102 : while (m->val / 8 < pos / 8) {
115 4 : pos -= 8;
116 : }
117 49 : fprintf (codefile,
118 : "if((%s)->%s) { %s += %d; break; }\n",
119 : name, m->gen_name, variable, (pos + 8) / 8);
120 : }
121 5 : fprintf(codefile,
122 : "} while(0);\n");
123 5 : fprintf (codefile, "%s += 1;\n", variable);
124 : } else {
125 5 : fprintf (codefile, "%s += 5;\n", variable);
126 : }
127 : }
128 22 : break;
129 : }
130 : case TSet:
131 : case TSequence:
132 : case TChoice: {
133 188 : Member *m, *have_ellipsis = NULL;
134 :
135 188 : if (t->members == NULL)
136 0 : break;
137 :
138 188 : if(t->type == TChoice)
139 20 : fprintf (codefile, "switch((%s)->element) {\n", name);
140 :
141 877 : ASN1_TAILQ_FOREACH(m, t->members, members) {
142 : char *s;
143 :
144 689 : if (m->ellipsis) {
145 31 : have_ellipsis = m;
146 31 : continue;
147 : }
148 :
149 658 : if(t->type == TChoice)
150 57 : fprintf(codefile, "case %s:\n", m->label);
151 :
152 658 : asprintf (&s, "%s(%s)->%s%s",
153 : m->optional ? "" : "&", name,
154 : t->type == TChoice ? "u." : "", m->gen_name);
155 658 : if (s == NULL)
156 0 : errx(1, "malloc");
157 658 : if (m->optional)
158 228 : fprintf (codefile, "if(%s)", s);
159 430 : else if(m->defval)
160 0 : gen_compare_defval(s + 1, m->defval);
161 658 : fprintf (codefile, "{\n"
162 : "size_t %s_oldret = %s;\n"
163 : "%s = 0;\n", tmpstr, variable, variable);
164 658 : length_type (s, m->type, "ret", m->gen_name);
165 658 : fprintf (codefile, "ret += %s_oldret;\n", tmpstr);
166 658 : fprintf (codefile, "}\n");
167 658 : free (s);
168 658 : if(t->type == TChoice)
169 57 : fprintf(codefile, "break;\n");
170 : }
171 188 : if(t->type == TChoice) {
172 20 : if (have_ellipsis)
173 5 : fprintf(codefile,
174 : "case %s:\n"
175 : "ret += (%s)->u.%s.length;\n"
176 : "break;\n",
177 : have_ellipsis->label,
178 : name,
179 : have_ellipsis->gen_name);
180 20 : fprintf (codefile, "}\n"); /* switch */
181 : }
182 188 : break;
183 : }
184 : case TSetOf:
185 : case TSequenceOf: {
186 : char *n;
187 : char *sname;
188 :
189 72 : fprintf (codefile,
190 : "{\n"
191 : "int %s_oldret = %s;\n"
192 : "int i;\n"
193 : "%s = 0;\n",
194 : tmpstr, variable, variable);
195 :
196 72 : fprintf (codefile, "for(i = (%s)->len - 1; i >= 0; --i){\n", name);
197 72 : fprintf (codefile, "int %s_for_oldret = %s;\n"
198 : "%s = 0;\n", tmpstr, variable, variable);
199 72 : asprintf (&n, "&(%s)->val[i]", name);
200 72 : if (n == NULL)
201 0 : errx(1, "malloc");
202 72 : asprintf (&sname, "%s_S_Of", tmpstr);
203 72 : if (sname == NULL)
204 0 : errx(1, "malloc");
205 72 : length_type(n, t->subtype, variable, sname);
206 72 : fprintf (codefile, "%s += %s_for_oldret;\n",
207 : variable, tmpstr);
208 72 : fprintf (codefile, "}\n");
209 :
210 72 : fprintf (codefile,
211 : "%s += %s_oldret;\n"
212 : "}\n", variable, tmpstr);
213 72 : free(n);
214 72 : free(sname);
215 72 : break;
216 : }
217 : case TGeneralizedTime:
218 6 : length_primitive ("generalized_time", name, variable);
219 6 : break;
220 : case TGeneralString:
221 14 : length_primitive ("general_string", name, variable);
222 14 : break;
223 : case TTeletexString:
224 1 : length_primitive ("general_string", name, variable);
225 1 : break;
226 : case TUTCTime:
227 1 : length_primitive ("utctime", name, variable);
228 1 : break;
229 : case TUTF8String:
230 39 : length_primitive ("utf8string", name, variable);
231 39 : break;
232 : case TPrintableString:
233 1 : length_primitive ("printable_string", name, variable);
234 1 : break;
235 : case TIA5String:
236 4 : length_primitive ("ia5_string", name, variable);
237 4 : break;
238 : case TBMPString:
239 2 : length_primitive ("bmp_string", name, variable);
240 2 : break;
241 : case TUniversalString:
242 1 : length_primitive ("universal_string", name, variable);
243 1 : break;
244 : case TVisibleString:
245 1 : length_primitive ("visible_string", name, variable);
246 1 : break;
247 : case TNull:
248 3 : fprintf (codefile, "/* NULL */\n");
249 3 : break;
250 : case TTag:{
251 : char *tname;
252 1002 : asprintf(&tname, "%s_tag", tmpstr);
253 1002 : if (tname == NULL)
254 0 : errx(1, "malloc");
255 1002 : length_type (name, t->subtype, variable, tname);
256 1002 : fprintf (codefile, "ret += %lu + der_length_len (ret);\n",
257 : (unsigned long)length_tag(t->tag.tagvalue));
258 1002 : free(tname);
259 1002 : break;
260 : }
261 : case TOID:
262 19 : length_primitive ("oid", name, variable);
263 19 : break;
264 : default :
265 0 : abort ();
266 : }
267 2025 : return 0;
268 : }
269 :
270 : void
271 : generate_type_length (const Symbol *s)
272 293 : {
273 293 : fprintf (codefile,
274 : "size_t\n"
275 : "length_%s(const %s *data)\n"
276 : "{\n"
277 : "size_t ret = 0;\n",
278 : s->gen_name, s->gen_name);
279 :
280 293 : length_type ("data", s->type, "ret", "Top");
281 293 : fprintf (codefile, "return ret;\n}\n\n");
282 293 : }
283 :
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