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bpf_image.c @ 97c5f8e8

55-freebsd-126-freebsd-12

Last change on this file since 97c5f8e8 was 97c5f8e8, checked in by Sebastian Huber <sebastian.huber@…>, on 10/09/17 at 07:59:36

Update libpcap to FreeBSD head 2017-04-04

Update libpcap from Git mirror commit
99a648a912e81e29d9c4c159cbbe263462f2d719 to
642b174daddbd0efd9bb5f242c43f4ab4db6869f.

Property mode set to 100644

File size: 5.3 KB

Line
1	#include <machine/rtems-bsd-user-space.h>
2
3	/*
4	* Copyright (c) 1990, 1991, 1992, 1994, 1995, 1996
5	* The Regents of the University of California. All rights reserved.
6	*
7	* Redistribution and use in source and binary forms, with or without
8	* modification, are permitted provided that: (1) source code distributions
9	* retain the above copyright notice and this paragraph in its entirety, (2)
10	* distributions including binary code include the above copyright notice and
11	* this paragraph in its entirety in the documentation or other materials
12	* provided with the distribution, and (3) all advertising materials mentioning
13	* features or use of this software display the following acknowledgement:
14	* ``This product includes software developed by the University of California,
15	* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
16	* the University nor the names of its contributors may be used to endorse
17	* or promote products derived from this software without specific prior
18	* written permission.
19	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
20	* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
21	* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
22	*/
23
24	#ifdef HAVE_CONFIG_H
25	#include "config.h"
26	#endif
27
28	#ifdef _WIN32
29	#include <pcap-stdinc.h>
30	#else /* _WIN32 */
31	#if HAVE_INTTYPES_H
32	#include <inttypes.h>
33	#elif HAVE_STDINT_H
34	#include <stdint.h>
35	#endif
36	#ifdef HAVE_SYS_BITYPES_H
37	#include <sys/bitypes.h>
38	#endif
39	#include <sys/types.h>
40	#endif /* _WIN32 */
41
42	#include <stdio.h>
43	#include <string.h>
44
45	#include "pcap-int.h"
46
47	#ifdef HAVE_OS_PROTO_H
48	#include "os-proto.h"
49	#endif
50
51	char *
52	bpf_image(p, n)
53	const struct bpf_insn *p;
54	int n;
55	{
56	int v;
57	const char fmt, op;
58	static char image[256];
59	char operand[64];
60
61	v = p->k;
62	switch (p->code) {
63
64	default:
65	op = "unimp";
66	fmt = "0x%x";
67	v = p->code;
68	break;
69
70	case BPF_RET\|BPF_K:
71	op = "ret";
72	fmt = "#%d";
73	break;
74
75	case BPF_RET\|BPF_A:
76	op = "ret";
77	fmt = "";
78	break;
79
80	case BPF_LD\|BPF_W\|BPF_ABS:
81	op = "ld";
82	fmt = "[%d]";
83	break;
84
85	case BPF_LD\|BPF_H\|BPF_ABS:
86	op = "ldh";
87	fmt = "[%d]";
88	break;
89
90	case BPF_LD\|BPF_B\|BPF_ABS:
91	op = "ldb";
92	fmt = "[%d]";
93	break;
94
95	case BPF_LD\|BPF_W\|BPF_LEN:
96	op = "ld";
97	fmt = "#pktlen";
98	break;
99
100	case BPF_LD\|BPF_W\|BPF_IND:
101	op = "ld";
102	fmt = "[x + %d]";
103	break;
104
105	case BPF_LD\|BPF_H\|BPF_IND:
106	op = "ldh";
107	fmt = "[x + %d]";
108	break;
109
110	case BPF_LD\|BPF_B\|BPF_IND:
111	op = "ldb";
112	fmt = "[x + %d]";
113	break;
114
115	case BPF_LD\|BPF_IMM:
116	op = "ld";
117	fmt = "#0x%x";
118	break;
119
120	case BPF_LDX\|BPF_IMM:
121	op = "ldx";
122	fmt = "#0x%x";
123	break;
124
125	case BPF_LDX\|BPF_MSH\|BPF_B:
126	op = "ldxb";
127	fmt = "4*([%d]&0xf)";
128	break;
129
130	case BPF_LD\|BPF_MEM:
131	op = "ld";
132	fmt = "M[%d]";
133	break;
134
135	case BPF_LDX\|BPF_MEM:
136	op = "ldx";
137	fmt = "M[%d]";
138	break;
139
140	case BPF_ST:
141	op = "st";
142	fmt = "M[%d]";
143	break;
144
145	case BPF_STX:
146	op = "stx";
147	fmt = "M[%d]";
148	break;
149
150	case BPF_JMP\|BPF_JA:
151	op = "ja";
152	fmt = "%d";
153	v = n + 1 + p->k;
154	break;
155
156	case BPF_JMP\|BPF_JGT\|BPF_K:
157	op = "jgt";
158	fmt = "#0x%x";
159	break;
160
161	case BPF_JMP\|BPF_JGE\|BPF_K:
162	op = "jge";
163	fmt = "#0x%x";
164	break;
165
166	case BPF_JMP\|BPF_JEQ\|BPF_K:
167	op = "jeq";
168	fmt = "#0x%x";
169	break;
170
171	case BPF_JMP\|BPF_JSET\|BPF_K:
172	op = "jset";
173	fmt = "#0x%x";
174	break;
175
176	case BPF_JMP\|BPF_JGT\|BPF_X:
177	op = "jgt";
178	fmt = "x";
179	break;
180
181	case BPF_JMP\|BPF_JGE\|BPF_X:
182	op = "jge";
183	fmt = "x";
184	break;
185
186	case BPF_JMP\|BPF_JEQ\|BPF_X:
187	op = "jeq";
188	fmt = "x";
189	break;
190
191	case BPF_JMP\|BPF_JSET\|BPF_X:
192	op = "jset";
193	fmt = "x";
194	break;
195
196	case BPF_ALU\|BPF_ADD\|BPF_X:
197	op = "add";
198	fmt = "x";
199	break;
200
201	case BPF_ALU\|BPF_SUB\|BPF_X:
202	op = "sub";
203	fmt = "x";
204	break;
205
206	case BPF_ALU\|BPF_MUL\|BPF_X:
207	op = "mul";
208	fmt = "x";
209	break;
210
211	case BPF_ALU\|BPF_DIV\|BPF_X:
212	op = "div";
213	fmt = "x";
214	break;
215
216	case BPF_ALU\|BPF_MOD\|BPF_X:
217	op = "mod";
218	fmt = "x";
219	break;
220
221	case BPF_ALU\|BPF_AND\|BPF_X:
222	op = "and";
223	fmt = "x";
224	break;
225
226	case BPF_ALU\|BPF_OR\|BPF_X:
227	op = "or";
228	fmt = "x";
229	break;
230
231	case BPF_ALU\|BPF_XOR\|BPF_X:
232	op = "xor";
233	fmt = "x";
234	break;
235
236	case BPF_ALU\|BPF_LSH\|BPF_X:
237	op = "lsh";
238	fmt = "x";
239	break;
240
241	case BPF_ALU\|BPF_RSH\|BPF_X:
242	op = "rsh";
243	fmt = "x";
244	break;
245
246	case BPF_ALU\|BPF_ADD\|BPF_K:
247	op = "add";
248	fmt = "#%d";
249	break;
250
251	case BPF_ALU\|BPF_SUB\|BPF_K:
252	op = "sub";
253	fmt = "#%d";
254	break;
255
256	case BPF_ALU\|BPF_MUL\|BPF_K:
257	op = "mul";
258	fmt = "#%d";
259	break;
260
261	case BPF_ALU\|BPF_DIV\|BPF_K:
262	op = "div";
263	fmt = "#%d";
264	break;
265
266	case BPF_ALU\|BPF_MOD\|BPF_K:
267	op = "mod";
268	fmt = "#%d";
269	break;
270
271	case BPF_ALU\|BPF_AND\|BPF_K:
272	op = "and";
273	fmt = "#0x%x";
274	break;
275
276	case BPF_ALU\|BPF_OR\|BPF_K:
277	op = "or";
278	fmt = "#0x%x";
279	break;
280
281	case BPF_ALU\|BPF_XOR\|BPF_K:
282	op = "xor";
283	fmt = "#0x%x";
284	break;
285
286	case BPF_ALU\|BPF_LSH\|BPF_K:
287	op = "lsh";
288	fmt = "#%d";
289	break;
290
291	case BPF_ALU\|BPF_RSH\|BPF_K:
292	op = "rsh";
293	fmt = "#%d";
294	break;
295
296	case BPF_ALU\|BPF_NEG:
297	op = "neg";
298	fmt = "";
299	break;
300
301	case BPF_MISC\|BPF_TAX:
302	op = "tax";
303	fmt = "";
304	break;
305
306	case BPF_MISC\|BPF_TXA:
307	op = "txa";
308	fmt = "";
309	break;
310	}
311	(void)pcap_snprintf(operand, sizeof operand, fmt, v);
312	if (BPF_CLASS(p->code) == BPF_JMP && BPF_OP(p->code) != BPF_JA) {
313	(void)pcap_snprintf(image, sizeof image,
314	"(%03d) %-8s %-16s jt %d\tjf %d",
315	n, op, operand, n + 1 + p->jt, n + 1 + p->jf);
316	} else {
317	(void)pcap_snprintf(image, sizeof image,
318	"(%03d) %-8s %s",
319	n, op, operand);
320	}
321	return image;
322	}

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source: rtems-libbsd/freebsd/contrib/libpcap/bpf_image.c @ 97c5f8e8

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