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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394
|
/*
* Copyright (c) 2015-2016 Dmitry V. Levin <ldv@strace.io>
* Copyright (c) 2015-2024 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <assert.h>
#include <linux/fcntl.h>
#include "pidns.h"
#include "scno.h"
#define FILE_LEN 4096
#define TEST_FLOCK_EINVAL(cmd) test_flock_einval(cmd, #cmd)
#define TEST_FLOCK64_EINVAL(cmd) test_flock64_einval(cmd, #cmd)
#ifndef NEED_TEST_FLOCK64_EINVAL
# if defined F_OFD_GETLK && defined F_OFD_SETLK && defined F_OFD_SETLKW
# define NEED_TEST_FLOCK64_EINVAL
# endif
#endif
#ifdef HAVE_TYPEOF
# define TYPEOF_FLOCK_OFF_T typeof(((struct flock *) NULL)->l_len)
#else
# define TYPEOF_FLOCK_OFF_T off_t
#endif
static const char *errstr;
static long
invoke_test_syscall(const unsigned int fd, const unsigned int cmd, void *const p)
{
const kernel_ulong_t kfd = F8ILL_KULONG_MASK | fd;
const kernel_ulong_t op = F8ILL_KULONG_MASK | cmd;
long rc = syscall(TEST_SYSCALL_NR, kfd, op, (uintptr_t) p);
errstr = sprintrc(rc);
return rc;
}
static void
test_flock_einval(const int cmd, const char *name)
{
TAIL_ALLOC_OBJECT_CONST_PTR(struct flock, fl);
memset(fl, 0, sizeof(*fl));
fl->l_type = F_RDLCK;
fl->l_start = (TYPEOF_FLOCK_OFF_T) 0xdefaced1facefeedULL;
fl->l_len = (TYPEOF_FLOCK_OFF_T) 0xdefaced2cafef00dULL;
invoke_test_syscall(0, cmd, fl);
pidns_print_leader();
printf("%s(0, %s, {l_type=F_RDLCK, l_whence=SEEK_SET"
", l_start=%jd, l_len=%jd}) = %s\n", TEST_SYSCALL_STR, name,
(intmax_t) fl->l_start, (intmax_t) fl->l_len, errstr);
void *const bad_addr = (void *) fl + 1;
invoke_test_syscall(0, cmd, bad_addr);
pidns_print_leader();
printf("%s(0, %s, %p) = %s\n",
TEST_SYSCALL_STR, name, bad_addr, errstr);
}
#ifdef NEED_TEST_FLOCK64_EINVAL
static void
test_flock64_einval(const int cmd, const char *name)
{
TAIL_ALLOC_OBJECT_CONST_PTR(struct flock64, fl);
memset(fl, 0, sizeof(*fl));
fl->l_type = F_RDLCK;
fl->l_start = (TYPEOF_FLOCK_OFF_T) 0xdefaced1facefeedULL;
fl->l_len = (TYPEOF_FLOCK_OFF_T) 0xdefaced2cafef00dULL;
invoke_test_syscall(0, cmd, fl);
pidns_print_leader();
printf("%s(0, %s, {l_type=F_RDLCK, l_whence=SEEK_SET"
", l_start=%jd, l_len=%jd}) = %s\n", TEST_SYSCALL_STR, name,
(intmax_t) fl->l_start, (intmax_t) fl->l_len, errstr);
void *const bad_addr = (void *) fl + 1;
invoke_test_syscall(0, cmd, bad_addr);
pidns_print_leader();
printf("%s(0, %s, %p) = %s\n",
TEST_SYSCALL_STR, name, bad_addr, errstr);
}
#endif /* NEED_TEST_FLOCK64_EINVAL */
static void
test_flock(void)
{
TEST_FLOCK_EINVAL(F_SETLK);
TEST_FLOCK_EINVAL(F_SETLKW);
TAIL_ALLOC_OBJECT_CONST_PTR(struct flock, fl);
memset(fl, 0, sizeof(*fl));
fl->l_type = F_RDLCK;
fl->l_len = FILE_LEN;
long rc = invoke_test_syscall(0, F_SETLK, fl);
pidns_print_leader();
printf("%s(0, F_SETLK, {l_type=F_RDLCK, l_whence=SEEK_SET"
", l_start=0, l_len=%d}) = %s\n",
TEST_SYSCALL_STR, FILE_LEN, errstr);
if (rc)
return;
invoke_test_syscall(0, F_GETLK, fl);
pidns_print_leader();
printf("%s(0, F_GETLK, {l_type=F_UNLCK, l_whence=SEEK_SET"
", l_start=0, l_len=%d, l_pid=0}) = 0\n",
TEST_SYSCALL_STR, FILE_LEN);
invoke_test_syscall(0, F_SETLKW, fl);
pidns_print_leader();
printf("%s(0, F_SETLKW, {l_type=F_UNLCK, l_whence=SEEK_SET"
", l_start=0, l_len=%d}) = 0\n",
TEST_SYSCALL_STR, FILE_LEN);
}
static void
test_flock64_ofd(void)
{
#if defined F_OFD_GETLK && defined F_OFD_SETLK && defined F_OFD_SETLKW
TEST_FLOCK64_EINVAL(F_OFD_SETLK);
TEST_FLOCK64_EINVAL(F_OFD_SETLKW);
TAIL_ALLOC_OBJECT_CONST_PTR(struct flock64, fl);
memset(fl, 0, sizeof(*fl));
fl->l_type = F_RDLCK;
fl->l_len = FILE_LEN;
long rc = invoke_test_syscall(0, F_OFD_SETLK, fl);
pidns_print_leader();
printf("%s(0, F_OFD_SETLK, {l_type=F_RDLCK, l_whence=SEEK_SET"
", l_start=0, l_len=%d}) = %s\n",
TEST_SYSCALL_STR, FILE_LEN, errstr);
if (rc)
return;
invoke_test_syscall(0, F_OFD_GETLK, fl);
pidns_print_leader();
printf("%s(0, F_OFD_GETLK, {l_type=F_UNLCK, l_whence=SEEK_SET"
", l_start=0, l_len=%d, l_pid=0}) = 0\n",
TEST_SYSCALL_STR, FILE_LEN);
invoke_test_syscall(0, F_OFD_SETLKW, fl);
pidns_print_leader();
printf("%s(0, F_OFD_SETLKW, {l_type=F_UNLCK, l_whence=SEEK_SET"
", l_start=0, l_len=%d}) = 0\n",
TEST_SYSCALL_STR, FILE_LEN);
#endif /* F_OFD_GETLK && F_OFD_SETLK && F_OFD_SETLKW */
}
static void test_flock64_lk64(void);
static void
test_flock64(void)
{
test_flock64_ofd();
test_flock64_lk64();
}
static long
test_f_owner_ex_type_pid(const int cmd, const char *const cmd_name,
const int type, const char *const type_name,
enum pid_type pid_type, pid_t pid)
{
TAIL_ALLOC_OBJECT_CONST_PTR(struct f_owner_ex, fo);
fo->type = type;
fo->pid = pid;
long rc = invoke_test_syscall(0, cmd, fo);
pidns_print_leader();
printf("%s(0, %s, {type=%s, pid=%d%s}) = %s\n",
TEST_SYSCALL_STR, cmd_name, type_name,
fo->pid, pidns_pid2str(pid_type), errstr);
void *bad_addr = (void *) fo + 1;
invoke_test_syscall(0, cmd, bad_addr);
pidns_print_leader();
printf("%s(0, %s, %p) = %s\n",
TEST_SYSCALL_STR, cmd_name, bad_addr, errstr);
return rc;
}
static void
test_f_owner_ex_umove_or_printaddr(const int type, const char *const type_name,
enum pid_type pid_type, pid_t pid)
{
long rc = test_f_owner_ex_type_pid(ARG_STR(F_SETOWN_EX),
type, type_name, pid_type, pid);
if (!rc)
test_f_owner_ex_type_pid(ARG_STR(F_GETOWN_EX),
type, type_name, pid_type, pid);
}
static void
test_f_owner_ex(void)
{
struct {
int type;
const char *type_name;
enum pid_type pid_type;
pid_t pid;
} a[] = {
{ ARG_STR(F_OWNER_TID), PT_NONE, 1234567890 },
{ ARG_STR(F_OWNER_PID), PT_NONE, 1234567890 },
{ ARG_STR(F_OWNER_PGRP), PT_NONE, 1234567890 },
{ ARG_STR(F_OWNER_TID), PT_TID, syscall(__NR_gettid) },
{ ARG_STR(F_OWNER_PID), PT_TGID, getpid() },
{ ARG_STR(F_OWNER_PGRP), PT_PGID, getpgid(0) },
};
for (unsigned int i = 0; i < ARRAY_SIZE(a); i++)
test_f_owner_ex_umove_or_printaddr(a[i].type, a[i].type_name,
a[i].pid_type, a[i].pid);
}
struct fcntl_cmd_check {
int fd;
int cmd;
const char *cmd_str;
long arg;
const char *arg_str;
void (*print_flags)(long rc);
};
static void
test_xetown(void)
{
const int pid = getpid();
const char *pid_str = pidns_pid2str(PT_TGID);
invoke_test_syscall(0, F_SETOWN, (void *) (intptr_t) pid);
pidns_print_leader();
printf("%s(0, F_SETOWN, %d%s) = %s\n",
TEST_SYSCALL_STR, pid, pid_str, errstr);
invoke_test_syscall(0, F_GETOWN, NULL);
pidns_print_leader();
printf("%s(0, F_GETOWN) = %d%s\n",
TEST_SYSCALL_STR, pid, pid_str);
}
static void
print_retval_flags(const struct fcntl_cmd_check *check, long rc)
{
if (check->print_flags) {
check->print_flags(rc);
} else {
printf("%s", errstr);
}
printf("\n");
}
static void
test_other_set_cmd(const struct fcntl_cmd_check *check)
{
invoke_test_syscall(check->fd, check->cmd, (void *) check->arg);
pidns_print_leader();
printf("%s(%d, %s, %s) = %s\n",
TEST_SYSCALL_STR, check->fd,
check->cmd_str, check->arg_str, errstr);
/* bad file fd */
invoke_test_syscall(-1, check->cmd, (void *) check->arg);
pidns_print_leader();
printf("%s(-1, %s, %s) = %s\n",
TEST_SYSCALL_STR, check->cmd_str,
check->arg_str, errstr);
}
static void
test_other_get_cmd(const struct fcntl_cmd_check *check)
{
long rc = invoke_test_syscall(check->fd, check->cmd, NULL);
pidns_print_leader();
printf("%s(%d, %s) = ",
TEST_SYSCALL_STR, check->fd, check->cmd_str);
print_retval_flags(check, rc);
/* bad file fd */
invoke_test_syscall(-1, check->cmd, NULL);
pidns_print_leader();
printf("%s(-1, %s) = %s\n",
TEST_SYSCALL_STR, check->cmd_str, errstr);
}
static void
print_flags_getfd(long rc)
{
assert(rc >= 0);
printf("%#lx%s", rc, rc & 1 ? " (flags FD_CLOEXEC)" : "");
}
static void
print_flags_getsig(long rc)
{
assert(rc >= 0);
if (!rc) {
printf("%ld", rc);
} else {
printf("%ld (%s)", rc, signal2name((int) rc));
}
}
static void
print_flags_getlease(long rc)
{
assert(rc >= 0);
const char *text;
switch (rc) {
case F_RDLCK:
text = "F_RDLCK";
break;
case F_WRLCK:
text = "F_WRLCK";
break;
case F_UNLCK:
text = "F_UNLCK";
break;
default:
error_msg_and_fail("fcntl returned %#lx, does the"
" test have to be updated?", rc);
}
printf("%#lx (%s)", rc, text);
}
static void
test_fcntl_others(void)
{
static const struct fcntl_cmd_check set_checks[] = {
{ 0, ARG_STR(F_SETFD), ARG_STR(FD_CLOEXEC) },
{ 0, ARG_STR(F_SETPIPE_SZ), ARG_STR(4097) },
{ 0, ARG_STR(F_DUPFD), ARG_STR(0) },
{ 0, ARG_STR(F_DUPFD_CLOEXEC), ARG_STR(0) },
{ 0, ARG_STR(F_SETFL), ARG_STR(O_RDWR|O_LARGEFILE) },
{ 0, ARG_STR(F_NOTIFY), ARG_STR(DN_ACCESS) },
{ 0, ARG_STR(F_DUPFD_QUERY), ARG_STR(0) },
{ 0, ARG_STR(F_CREATED_QUERY), ARG_STR(0) },
{ 1, ARG_STR(F_SETLEASE), ARG_STR(F_RDLCK) },
{ 0, ARG_STR(F_SETSIG), 0, "0" },
{ 1, ARG_STR(F_SETSIG), 1, "SIGHUP" }
};
for (unsigned int i = 0; i < ARRAY_SIZE(set_checks); i++) {
test_other_set_cmd(set_checks + i);
}
static const struct fcntl_cmd_check get_checks[] = {
{ 0, ARG_STR(F_GETFD), .print_flags = print_flags_getfd },
{ 1, ARG_STR(F_GETFD), .print_flags = print_flags_getfd },
{ 0, ARG_STR(F_GETPIPE_SZ) },
{ 1, ARG_STR(F_GETLEASE), .print_flags = print_flags_getlease },
{ 0, ARG_STR(F_GETSIG), .print_flags = print_flags_getsig },
{ 1, ARG_STR(F_GETSIG), .print_flags = print_flags_getsig }
};
for (unsigned int j = 0; j < ARRAY_SIZE(get_checks); j++) {
test_other_get_cmd(get_checks + j);
}
}
static void
create_sample(void)
{
(void) close(0);
if (ftruncate(create_tmpfile(O_RDWR), FILE_LEN))
perror_msg_and_fail("ftruncate");
}
int
main(void)
{
PIDNS_TEST_INIT;
create_sample();
test_flock();
test_flock64();
test_f_owner_ex();
test_fcntl_others();
test_xetown();
pidns_print_leader();
puts("+++ exited with 0 +++");
return 0;
}
|