1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
|
/*
* Check decoding of getsockopt and setsockopt for SOL_SOCKET level.
*
* Copyright (c) 2017-2023 Dmitry V. Levin <ldv@strace.io>
* Copyright (c) 2022-2024 Eugene Syromyatnikov <evgsyr@gmail.com>
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include <stdio.h>
#include <sys/socket.h>
#include <sys/un.h>
#include "k_sockopt.h"
#define XLAT_MACROS_ONLY
# include "xlat/sock_options.h"
#undef XLAT_MACROS_ONLY
#ifdef INJECT_RETVAL
# define INJSTR " (INJECTED)"
#else
# define INJSTR ""
#endif
static int rc;
static const char *errstr;
static int
get_sockopt(int fd, int name, void *val, socklen_t *len)
{
rc = k_getsockopt(fd, SOL_SOCKET, name, val, len);
errstr = sprintrc(rc);
return rc;
}
static int
set_sockopt(int fd, int name, void *val, socklen_t len)
{
rc = k_setsockopt(fd, SOL_SOCKET, name, val, len);
errstr = sprintrc(rc);
return rc;
}
static void
print_optval(int val, const struct strival32 *vecs, size_t vecs_sz)
{
for (size_t k = 0; k < vecs_sz; k++) {
if (vecs[k].val == val) {
printf("[%s]", vecs[k].str);
return;
}
}
printf("[%d]", val);
}
int
main(void)
{
static const struct strival32 int_vecs[] = {
{ ARG_STR(0) },
{ ARG_STR(1) },
{ ARG_STR(1234567890) },
{ ARG_STR(-1234567890) },
};
static const struct strival32 txrehash_vecs[] = {
{ ARG_XLAT_KNOWN(0, "SOCK_TXREHASH_DISABLED") },
{ ARG_XLAT_KNOWN(1, "SOCK_TXREHASH_ENABLED") },
{ ARG_XLAT_UNKNOWN(2, "SOCK_TXREHASH_???") },
{ ARG_XLAT_UNKNOWN(254, "SOCK_TXREHASH_???") },
{ ARG_XLAT_KNOWN(255, "SOCK_TXREHASH_DEFAULT") },
{ ARG_XLAT_UNKNOWN(256, "SOCK_TXREHASH_???") },
{ ARG_XLAT_UNKNOWN(511, "SOCK_TXREHASH_???") },
{ ARG_XLAT_UNKNOWN(-1, "SOCK_TXREHASH_???") },
};
static const struct {
int val;
const char *str;
const struct strival32 *const vecs;
size_t vecs_sz;
size_t optsz;
} names[] = {
{ ARG_STR(SO_DEBUG), .optsz = sizeof(int) },
{ ARG_STR(SO_REUSEADDR), .optsz = sizeof(int) },
{ ARG_STR(SO_TYPE), /* TODO */ },
/* SO_ERROR - see so_error test */
{ ARG_STR(SO_DONTROUTE), .optsz = sizeof(int) },
{ ARG_STR(SO_BROADCAST), .optsz = sizeof(int) },
{ ARG_STR(SO_SNDBUF), .optsz = sizeof(int) },
{ ARG_STR(SO_RCVBUF), .optsz = sizeof(int) },
{ ARG_STR(SO_KEEPALIVE), .optsz = sizeof(int) },
{ ARG_STR(SO_OOBINLINE), .optsz = sizeof(int) },
{ ARG_STR(SO_NO_CHECK), .optsz = sizeof(int) },
{ ARG_STR(SO_PRIORITY), .optsz = sizeof(int) },
/* SO_LINGER - see so_linger test */
{ ARG_STR(SO_BSDCOMPAT), .optsz = sizeof(int) },
{ ARG_STR(SO_REUSEPORT), .optsz = sizeof(int) },
{ ARG_STR(SO_PASSCRED), .optsz = sizeof(int) },
/* SO_PEERCRED - see so_peercred test */
{ ARG_STR(SO_RCVLOWAT), .optsz = sizeof(int) },
{ ARG_STR(SO_SNDLOWAT), .optsz = sizeof(int) },
{ ARG_STR(SO_RCVTIMEO_OLD), /* TODO */ },
{ ARG_STR(SO_SNDTIMEO_OLD), /* TODO */ },
{ ARG_STR(SO_SECURITY_AUTHENTICATION) },
{ ARG_STR(SO_SECURITY_ENCRYPTION_TRANSPORT) },
{ ARG_STR(SO_SECURITY_ENCRYPTION_NETWORK) },
/* TODO: SO_BINDTODEVICE */
{ ARG_STR(SO_DETACH_FILTER), .optsz = sizeof(int) },
{ ARG_STR(SO_PEERNAME), /* TODO */ },
{ ARG_STR(SO_TIMESTAMP_OLD), .optsz = sizeof(int) },
{ ARG_STR(SO_ACCEPTCONN), .optsz = sizeof(int) },
{ ARG_STR(SO_PEERSEC), /* TODO */ },
{ ARG_STR(SO_SNDBUFFORCE), .optsz = sizeof(int) },
{ ARG_STR(SO_RCVBUFFORCE), .optsz = sizeof(int) },
{ ARG_STR(SO_PASSSEC), .optsz = sizeof(int) },
{ ARG_STR(SO_TIMESTAMPNS_OLD), .optsz = sizeof(int) },
{ ARG_STR(SO_MARK), .optsz = sizeof(int) },
{ ARG_STR(SO_TIMESTAMPING_OLD), .optsz = sizeof(int) },
{ ARG_STR(SO_PROTOCOL), /* TODO */ },
{ ARG_STR(SO_DOMAIN), /* TODO */ },
{ ARG_STR(SO_RXQ_OVFL), .optsz = sizeof(int) },
{ ARG_STR(SO_WIFI_STATUS), .optsz = sizeof(int) },
{ ARG_STR(SO_PEEK_OFF), .optsz = sizeof(int) },
{ ARG_STR(SO_NOFCS), .optsz = sizeof(int) },
{ ARG_STR(SO_LOCK_FILTER), .optsz = sizeof(int) },
{ ARG_STR(SO_SELECT_ERR_QUEUE), .optsz = sizeof(int) },
{ ARG_STR(SO_BUSY_POLL), .optsz = sizeof(int) },
{ ARG_STR(SO_MAX_PACING_RATE), /* TODO */ },
{ ARG_STR(SO_BPF_EXTENSIONS), /* TODO */ },
{ ARG_STR(SO_INCOMING_CPU), .optsz = sizeof(int) },
{ ARG_STR(SO_ATTACH_BPF), /* TODO */ },
/* SO_ATTACH_REUSEPORT_CBPF - see sock_filter-v test */
{ ARG_STR(SO_ATTACH_REUSEPORT_EBPF), /* TODO */ },
{ ARG_STR(SO_CNX_ADVICE), .optsz = sizeof(int) },
{ ARG_STR(SO_MEMINFO), /* TODO */ },
{ ARG_STR(SO_INCOMING_NAPI_ID), .optsz = sizeof(int) },
{ ARG_STR(SO_COOKIE), /* TODO */ },
{ ARG_STR(SO_PEERGROUPS), /* TODO */ },
{ ARG_STR(SO_ZEROCOPY), .optsz = sizeof(int) },
{ ARG_STR(SO_TXTIME), /* TODO */ },
{ ARG_STR(SO_BINDTOIFINDEX), /* TODO */ },
{ ARG_STR(SO_TIMESTAMP_NEW), .optsz = sizeof(int) },
{ ARG_STR(SO_TIMESTAMPNS_NEW), .optsz = sizeof(int) },
{ ARG_STR(SO_TIMESTAMPING_NEW), .optsz = sizeof(int) },
{ ARG_STR(SO_RCVTIMEO_NEW), /* TODO */ },
{ ARG_STR(SO_SNDTIMEO_NEW), /* TODO */ },
{ ARG_STR(SO_DETACH_REUSEPORT_BPF), .optsz = sizeof(int) },
{ ARG_STR(SO_PREFER_BUSY_POLL), .optsz = sizeof(int) },
{ ARG_STR(SO_BUSY_POLL_BUDGET), .optsz = sizeof(int) },
{ ARG_STR(SO_NETNS_COOKIE), /* TODO */ },
{ ARG_STR(SO_BUF_LOCK), /* TODO */ },
{ ARG_STR(SO_RESERVE_MEM), .optsz = sizeof(int) },
{ ARG_STR(SO_TXREHASH), ARRSZ_PAIR(txrehash_vecs), sizeof(int) },
{ ARG_STR(SO_RCVMARK), .optsz = sizeof(int) },
{ ARG_STR(SO_PASSPIDFD), .optsz = sizeof(int) },
/* SO_PEERPIDFD - see so_peerpidfd test */
{ 78, NULL },
{ -1, NULL },
};
char pfx_str[256];
char sol_str[64];
TAIL_ALLOC_OBJECT_CONST_PTR(int, val);
TAIL_ALLOC_OBJECT_CONST_ARR(int, bigval, 2);
TAIL_ALLOC_OBJECT_CONST_PTR(socklen_t, len);
void *const efault = val + 1;
int fd = socket(AF_UNIX, SOCK_RAW, 0);
if (fd < 0)
perror_msg_and_skip("socket AF_UNIX SOCK_RAW");
snprintf(sol_str, sizeof(sol_str), XLAT_FMT, XLAT_ARGS(SOL_SOCKET));
for (size_t i = 0; i < ARRAY_SIZE(names); ++i) {
static char so_str[64];
const struct strival32 *const vecs = names[i].vecs ?: int_vecs;
size_t vecs_sz = names[i].vecs_sz ?: ARRAY_SIZE(int_vecs);
if (names[i].str) {
snprintf(so_str, sizeof(so_str), XLAT_FMT,
XLAT_SEL(names[i].val, names[i].str));
} else {
snprintf(so_str, sizeof(so_str),
"%#x" NRAW(" /* SO_??? */"), names[i].val);
}
snprintf(pfx_str, sizeof(pfx_str), "etsockopt(%d, %s, %s, ",
fd, sol_str, so_str);
/* getsockopt */
for (size_t j = 0; j < vecs_sz; j++) {
/* classic */
*len = sizeof(*val);
*val = vecs[j].val;
get_sockopt(fd, names[i].val, val, len);
printf("g%s", pfx_str);
if (rc < 0)
printf("%p", val);
else
print_optval(*val, vecs, vecs_sz);
printf(", [%d]) = %s" INJSTR "\n", *len, errstr);
/* optlen larger than accessible memory */
*len = sizeof(*val) + 1;
get_sockopt(fd, names[i].val, val, len);
printf("g%s", pfx_str);
if (rc < 0 || (!names[i].optsz && *len > sizeof(*val)))
printf("%p", val);
else
print_optval(*val, vecs, vecs_sz);
printf(", [%d", (int) sizeof(*val) + 1);
if ((int) sizeof(*val) + 1 != *len)
printf(" => %d", *len);
printf("]) = %s" INJSTR "\n", errstr);
/* optlen larger than necessary */
*len = sizeof(*val) + 1;
*bigval = vecs[j].val;
get_sockopt(fd, names[i].val, bigval, len);
printf("g%s", pfx_str);
if (rc < 0) {
printf("%p", bigval);
} else {
if (*len == sizeof(*val) || names[i].optsz)
print_optval(*val, vecs, vecs_sz);
else
print_quoted_memory(bigval, *len);
}
printf(", [%d", (int) sizeof(*val) + 1);
if ((int) sizeof(*val) + 1 != *len)
printf(" => %d", *len);
printf("]) = %s" INJSTR "\n", errstr);
}
/* zero optlen - print returned optlen */
*len = 0;
#ifdef INJECT_RETVAL
*val = vecs[0].val;
#endif
get_sockopt(fd, names[i].val, NULL, len);
printf("g%sNULL, [0", pfx_str);
if (*len)
printf(" => %d", *len);
printf("]) = %s" INJSTR "\n", errstr);
/* optlen shorter than necessary */
*len = sizeof(*val) - 1;
get_sockopt(fd, names[i].val, val, len);
printf("g%s", pfx_str);
if (rc < 0)
printf("%p", val);
else if (names[i].optsz)
print_quoted_hex(val, sizeof(*val) - 1);
else
print_quoted_memory(val, sizeof(*val) - 1);
printf(", [%d", (int) sizeof(*val) - 1);
if ((int) sizeof(*val) - 1 != *len)
printf(" => %d", *len);
printf("]) = %s" INJSTR "\n", errstr);
/* optval EFAULT - print address */
*len = sizeof(*val);
get_sockopt(fd, names[i].val, efault, len);
printf("g%s%p, [%d]) = %s" INJSTR "\n",
pfx_str, efault, *len, errstr);
/* optlen EFAULT - print address */
get_sockopt(fd, names[i].val, val, len + 1);
printf("g%s%p, %p) = %s" INJSTR "\n",
pfx_str, val, len + 1, errstr);
/* setsockopt */
for (size_t j = 0; j < vecs_sz; j++) {
/* classic */
*val = vecs[j].val;
set_sockopt(fd, names[i].val, val, sizeof(*val));
printf("s%s[%s], %d) = %s" INJSTR "\n",
pfx_str, vecs[j].str, (int) sizeof(*val), errstr);
/* optlen larger than necessary */
set_sockopt(fd, names[i].val, val, sizeof(*val) + 1);
printf("s%s", pfx_str);
if (names[i].optsz && names[i].optsz <= sizeof(*val))
printf("[%s]", vecs[j].str);
else
printf("%p", val);
printf(", %d) = %s" INJSTR "\n",
(int) sizeof(*val) + 1, errstr);
}
/* optlen < 0 - print address */
*val = vecs[0].val;
set_sockopt(fd, names[i].val, val, -1U);
printf("s%s%p, -1) = %s" INJSTR "\n", pfx_str, val, errstr);
/* optlen smaller than necessary */
set_sockopt(fd, names[i].val, val, sizeof(*val) - 1);
printf("s%s", pfx_str);
if (names[i].optsz)
printf("%p", val);
else
print_quoted_memory(val, sizeof(*val) - 1);
printf(", %d) = %s" INJSTR "\n", (int) sizeof(*val) - 1, errstr);
/* optval EFAULT - print address */
set_sockopt(fd, names[i].val, efault, sizeof(*val));
printf("s%s%p, %d) = %s" INJSTR "\n",
pfx_str, efault, (int) sizeof(*val), errstr);
}
puts("+++ exited with 0 +++");
return 0;
}
|
