diff options
Diffstat (limited to 'compiler-rt/lib/dfsan/lit_tests')
| -rw-r--r-- | compiler-rt/lib/dfsan/lit_tests/custom.c | 618 |
1 files changed, 76 insertions, 542 deletions
diff --git a/compiler-rt/lib/dfsan/lit_tests/custom.c b/compiler-rt/lib/dfsan/lit_tests/custom.c index dd6d580a056..c9fa9356154 100644 --- a/compiler-rt/lib/dfsan/lit_tests/custom.c +++ b/compiler-rt/lib/dfsan/lit_tests/custom.c @@ -1,620 +1,154 @@ // RUN: %clang_dfsan -m64 %s -o %t && %t // RUN: %clang_dfsan -mllvm -dfsan-args-abi -m64 %s -o %t && %t -// Tests custom implementations of various glibc functions. +// Tests custom implementations of various libc functions. #define _GNU_SOURCE #include <sanitizer/dfsan_interface.h> - -#include <arpa/inet.h> #include <assert.h> -#include <fcntl.h> #include <link.h> -#include <poll.h> #include <pthread.h> -#include <pwd.h> -#include <sched.h> -#include <signal.h> -#include <stdio.h> -#include <stdlib.h> #include <string.h> -#include <sys/select.h> -#include <sys/resource.h> -#include <sys/stat.h> -#include <sys/time.h> +#include <stdlib.h> #include <sys/types.h> -#include <time.h> +#include <sys/stat.h> +#include <fcntl.h> #include <unistd.h> -dfsan_label i_label = 0; -dfsan_label j_label = 0; -dfsan_label i_j_label = 0; - -#define ASSERT_ZERO_LABEL(data) \ - assert(0 == dfsan_get_label((long) (data))) - -#define ASSERT_READ_ZERO_LABEL(ptr, size) \ - assert(0 == dfsan_read_label(ptr, size)) - -#define ASSERT_LABEL(data, label) \ - assert(label == dfsan_get_label((long) (data))) +void *ptcb(void *p) { + assert(p == (void *)1); + assert(dfsan_get_label((uintptr_t)p) == 0); + return (void *)2; +} -#define ASSERT_READ_LABEL(ptr, size, label) \ - assert(label == dfsan_read_label(ptr, size)) +int dlcb(struct dl_phdr_info *info, size_t size, void *data) { + assert(data == (void *)3); + assert(dfsan_get_label((uintptr_t)info) == 0); + assert(dfsan_get_label(size) == 0); + assert(dfsan_get_label((uintptr_t)data) == 0); + return 0; +} -void test_stat() { +int main(void) { int i = 1; + dfsan_label i_label = dfsan_create_label("i", 0); dfsan_set_label(i_label, &i, sizeof(i)); + int j = 2; + dfsan_label j_label = dfsan_create_label("j", 0); + dfsan_set_label(j_label, &j, sizeof(j)); + struct stat s; s.st_dev = i; - assert(0 == stat("/", &s)); - ASSERT_ZERO_LABEL(s.st_dev); + int rv = stat("/", &s); + assert(rv == 0); + assert(dfsan_get_label(s.st_dev) == 0); s.st_dev = i; - assert(-1 == stat("/nonexistent", &s)); - ASSERT_LABEL(s.st_dev, i_label); -} + rv = stat("/nonexistent", &s); + assert(rv == -1); + assert(dfsan_get_label(s.st_dev) == i_label); -void test_fstat() { - int i = 1; - dfsan_set_label(i_label, &i, sizeof(i)); - - struct stat s; int fd = open("/dev/zero", O_RDONLY); s.st_dev = i; - int rv = fstat(fd, &s); - assert(0 == rv); - ASSERT_ZERO_LABEL(s.st_dev); -} + rv = fstat(fd, &s); + assert(rv == 0); + assert(dfsan_get_label(s.st_dev) == 0); -void test_memcmp() { char str1[] = "str1", str2[] = "str2"; dfsan_set_label(i_label, &str1[3], 1); dfsan_set_label(j_label, &str2[3], 1); - int rv = memcmp(str1, str2, sizeof(str1)); + rv = memcmp(str1, str2, sizeof(str1)); assert(rv < 0); - ASSERT_LABEL(rv, i_j_label); -} + assert(dfsan_get_label(rv) == dfsan_union(i_label, j_label)); -void test_memcpy() { - char str1[] = "str1"; - char str2[sizeof(str1)]; - dfsan_set_label(i_label, &str1[3], 1); + char strc[sizeof(str1)]; + memcpy(strc, str1, sizeof(str1)); + assert(dfsan_get_label(strc[0]) == 0); + assert(dfsan_get_label(strc[3]) == i_label); - ASSERT_ZERO_LABEL(memcpy(str2, str1, sizeof(str1))); - assert(0 == memcmp(str2, str1, sizeof(str1))); - ASSERT_ZERO_LABEL(str2[0]); - ASSERT_LABEL(str2[3], i_label); -} + memset(strc, j, sizeof(strc)); + assert(dfsan_get_label(strc[0]) == j_label); + assert(dfsan_get_label(strc[1]) == j_label); + assert(dfsan_get_label(strc[2]) == j_label); + assert(dfsan_get_label(strc[3]) == j_label); + assert(dfsan_get_label(strc[4]) == j_label); -void test_memset() { - char buf[8]; - int j = 'a'; - dfsan_set_label(j_label, &j, sizeof(j)); - - ASSERT_ZERO_LABEL(memset(&buf, j, sizeof(buf))); - for (int i = 0; i < 8; ++i) { - ASSERT_LABEL(buf[i], j_label); - assert(buf[i] == 'a'); - } -} - -void test_strcmp() { - char str1[] = "str1", str2[] = "str2"; - dfsan_set_label(i_label, &str1[3], 1); - dfsan_set_label(j_label, &str2[3], 1); - - int rv = strcmp(str1, str2); + rv = strcmp(str1, str2); assert(rv < 0); - ASSERT_LABEL(rv, i_j_label); -} - -void test_strlen() { - char str1[] = "str1"; - dfsan_set_label(i_label, &str1[3], 1); - - int rv = strlen(str1); - assert(rv == 4); - ASSERT_LABEL(rv, i_label); -} - -void test_strdup() { - char str1[] = "str1"; - dfsan_set_label(i_label, &str1[3], 1); + assert(dfsan_get_label(rv) == dfsan_union(i_label, j_label)); char *strd = strdup(str1); - ASSERT_ZERO_LABEL(strd[0]); - ASSERT_LABEL(strd[3], i_label); + assert(dfsan_get_label(strd[0]) == 0); + assert(dfsan_get_label(strd[3]) == i_label); free(strd); -} - -void test_strncpy() { - char str1[] = "str1"; - char str2[sizeof(str1)]; - dfsan_set_label(i_label, &str1[3], 1); - - char *strd = strncpy(str2, str1, 5); - assert(strd == str2); - assert(strcmp(str1, str2) == 0); - ASSERT_ZERO_LABEL(strd); - ASSERT_ZERO_LABEL(strd[0]); - ASSERT_ZERO_LABEL(strd[1]); - ASSERT_ZERO_LABEL(strd[2]); - ASSERT_LABEL(strd[3], i_label); - strd = strncpy(str2, str1, 3); - assert(strd == str2); - assert(strncmp(str1, str2, 3) == 0); - ASSERT_ZERO_LABEL(strd); - ASSERT_ZERO_LABEL(strd[0]); - ASSERT_ZERO_LABEL(strd[1]); - ASSERT_ZERO_LABEL(strd[2]); -} - -void test_strncmp() { - char str1[] = "str1", str2[] = "str2"; - dfsan_set_label(i_label, &str1[3], 1); - dfsan_set_label(j_label, &str2[3], 1); - - int rv = strncmp(str1, str2, sizeof(str1)); + rv = strncmp(str1, str2, sizeof(str1)); assert(rv < 0); - ASSERT_LABEL(rv, dfsan_union(i_label, j_label)); + assert(dfsan_get_label(rv) == dfsan_union(i_label, j_label)); rv = strncmp(str1, str2, 3); assert(rv == 0); - ASSERT_ZERO_LABEL(rv); -} - -void test_strcasecmp() { - char str1[] = "str1", str2[] = "str2", str3[] = "Str1"; - dfsan_set_label(i_label, &str1[3], 1); - dfsan_set_label(j_label, &str2[3], 1); - dfsan_set_label(j_label, &str3[2], 1); - - int rv = strcasecmp(str1, str2); - assert(rv < 0); - ASSERT_LABEL(rv, dfsan_union(i_label, j_label)); - - rv = strcasecmp(str1, str3); - assert(rv == 0); - ASSERT_LABEL(rv, dfsan_union(i_label, j_label)); -} + assert(dfsan_get_label(rv) == 0); -void test_strncasecmp() { - char str1[] = "Str1", str2[] = "str2"; - dfsan_set_label(i_label, &str1[3], 1); - dfsan_set_label(j_label, &str2[3], 1); + str1[0] = 'S'; - int rv = strncasecmp(str1, str2, sizeof(str1)); + rv = strncasecmp(str1, str2, sizeof(str1)); assert(rv < 0); - ASSERT_LABEL(rv, dfsan_union(i_label, j_label)); + assert(dfsan_get_label(rv) == dfsan_union(i_label, j_label)); rv = strncasecmp(str1, str2, 3); assert(rv == 0); - ASSERT_ZERO_LABEL(rv); -} - -void test_strchr() { - char str1[] = "str1"; - dfsan_set_label(i_label, &str1[3], 1); + assert(dfsan_get_label(rv) == 0); char *crv = strchr(str1, 'r'); assert(crv == &str1[2]); - ASSERT_ZERO_LABEL(crv); + assert(dfsan_get_label((uintptr_t)crv) == 0); crv = strchr(str1, '1'); assert(crv == &str1[3]); - ASSERT_LABEL(crv, i_label); + assert(dfsan_get_label((uintptr_t)crv) == i_label); crv = strchr(str1, 'x'); - assert(!crv); - ASSERT_LABEL(crv, i_label); -} + assert(crv == 0); + assert(dfsan_get_label((uintptr_t)crv) == i_label); -void test_calloc() { // With any luck this sequence of calls will cause calloc to return the same // pointer both times. This is probably the best we can do to test this // function. - char *crv = calloc(4096, 1); - ASSERT_ZERO_LABEL(crv[0]); - dfsan_set_label(i_label, crv, 100); + crv = calloc(4096, 1); + assert(dfsan_get_label(crv[0]) == 0); free(crv); crv = calloc(4096, 1); - ASSERT_ZERO_LABEL(crv[0]); + assert(dfsan_get_label(crv[0]) == 0); free(crv); -} -void test_read() { char buf[16]; - dfsan_set_label(i_label, buf, 1); - dfsan_set_label(j_label, buf + 15, 1); - - ASSERT_LABEL(buf[0], i_label); - ASSERT_LABEL(buf[15], j_label); - - int fd = open("/dev/zero", O_RDONLY); - int rv = read(fd, buf, sizeof(buf)); + buf[0] = i; + buf[15] = j; + rv = read(fd, buf, sizeof(buf)); assert(rv == sizeof(buf)); - ASSERT_ZERO_LABEL(rv); - ASSERT_ZERO_LABEL(buf[0]); - ASSERT_ZERO_LABEL(buf[15]); - close(fd); -} + assert(dfsan_get_label(buf[0]) == 0); + assert(dfsan_get_label(buf[15]) == 0); -void test_pread() { - char buf[16]; - dfsan_set_label(i_label, buf, 1); - dfsan_set_label(j_label, buf + 15, 1); - - ASSERT_LABEL(buf[0], i_label); - ASSERT_LABEL(buf[15], j_label); - - int fd = open("/bin/sh", O_RDONLY); - int rv = pread(fd, buf, sizeof(buf), 0); - assert(rv == sizeof(buf)); - ASSERT_ZERO_LABEL(rv); - ASSERT_ZERO_LABEL(buf[0]); - ASSERT_ZERO_LABEL(buf[15]); close(fd); -} - -void test_dlopen() { - void *map = dlopen(NULL, RTLD_NOW); - assert(map); - ASSERT_ZERO_LABEL(map); - dlclose(map); - map = dlopen("/nonexistent", RTLD_NOW); - assert(!map); - ASSERT_ZERO_LABEL(map); -} - -void test_clock_gettime() { - struct timespec tp; - dfsan_set_label(j_label, ((char *)&tp) + 3, 1); - int t = clock_gettime(CLOCK_REALTIME, &tp); - assert(t == 0); - ASSERT_ZERO_LABEL(t); - ASSERT_ZERO_LABEL(((char *)&tp)[3]); -} - -void test_ctime_r() { - char *buf = (char*) malloc(64); - time_t t = 0; - - char *ret = ctime_r(&t, buf); - ASSERT_ZERO_LABEL(ret); - assert(buf == ret); - ASSERT_READ_ZERO_LABEL(buf, strlen(buf) + 1); - - dfsan_set_label(i_label, &t, sizeof(t)); - ret = ctime_r(&t, buf); - ASSERT_ZERO_LABEL(ret); - ASSERT_READ_LABEL(buf, strlen(buf) + 1, i_label); - - t = 0; - dfsan_set_label(j_label, &buf, sizeof(&buf)); - ret = ctime_r(&t, buf); - ASSERT_LABEL(ret, j_label); - ASSERT_READ_ZERO_LABEL(buf, strlen(buf) + 1); -} - -void test_fgets() { - char *buf = (char*) malloc(128); - FILE *f = fopen("/etc/passwd", "r"); - dfsan_set_label(j_label, buf, 1); - char *ret = fgets(buf, sizeof(buf), f); - assert(ret == buf); - ASSERT_ZERO_LABEL(ret); - ASSERT_READ_ZERO_LABEL(buf, 128); - dfsan_set_label(j_label, &buf, sizeof(&buf)); - ret = fgets(buf, sizeof(buf), f); - ASSERT_LABEL(ret, j_label); - fclose(f); -} - -void test_getcwd() { - char buf[1024]; - char *ptr = buf; - dfsan_set_label(i_label, buf + 2, 2); - char* ret = getcwd(buf, sizeof(buf)); - assert(ret == buf); - assert(ret[0] == '/'); - ASSERT_READ_ZERO_LABEL(buf + 2, 2); - dfsan_set_label(i_label, &ptr, sizeof(ptr)); - ret = getcwd(ptr, sizeof(buf)); - ASSERT_LABEL(ret, i_label); -} - -void test_get_current_dir_name() { - char* ret = get_current_dir_name(); - assert(ret); - assert(ret[0] == '/'); - ASSERT_READ_ZERO_LABEL(ret, strlen(ret) + 1); -} - -void test_gethostname() { - char buf[1024]; - dfsan_set_label(i_label, buf + 2, 2); - assert(gethostname(buf, sizeof(buf)) == 0); - ASSERT_READ_ZERO_LABEL(buf + 2, 2); -} - -void test_getrlimit() { - struct rlimit rlim; - dfsan_set_label(i_label, &rlim, sizeof(rlim)); - assert(getrlimit(RLIMIT_CPU, &rlim) == 0); - ASSERT_READ_ZERO_LABEL(&rlim, sizeof(rlim)); -} - -void test_getrusage() { - struct rusage usage; - dfsan_set_label(i_label, &usage, sizeof(usage)); - assert(getrusage(RUSAGE_SELF, &usage) == 0); - ASSERT_READ_ZERO_LABEL(&usage, sizeof(usage)); -} - -void test_strcpy() { - char src[] = "hello world"; - char dst[sizeof(src) + 2]; - dfsan_set_label(0, src, sizeof(src)); - dfsan_set_label(0, dst, sizeof(dst)); - dfsan_set_label(i_label, src + 2, 1); - dfsan_set_label(j_label, src + 3, 1); - dfsan_set_label(j_label, dst + 4, 1); - dfsan_set_label(i_label, dst + 12, 1); - char *ret = strcpy(dst, src); - assert(ret == dst); - assert(strcmp(src, dst) == 0); - for (int i = 0; i < strlen(src) + 1; ++i) { - assert(dfsan_get_label(dst[i]) == dfsan_get_label(src[i])); - } - // Note: if strlen(src) + 1 were used instead to compute the first untouched - // byte of dest, the label would be I|J. This is because strlen() might - // return a non-zero label, and because by default pointer labels are not - // ignored on loads. - ASSERT_LABEL(dst[12], i_label); -} - -void test_strtol() { - char buf[] = "1234578910"; - char *endptr = NULL; - dfsan_set_label(i_label, buf + 1, 1); - dfsan_set_label(j_label, buf + 10, 1); - long int ret = strtol(buf, &endptr, 10); - assert(ret == 1234578910); - assert(endptr == buf + 10); - ASSERT_LABEL(ret, i_j_label); -} - -void test_strtoll() { - char buf[] = "1234578910 "; - char *endptr = NULL; - dfsan_set_label(i_label, buf + 1, 1); - dfsan_set_label(j_label, buf + 2, 1); - long long int ret = strtoll(buf, &endptr, 10); - assert(ret == 1234578910); - assert(endptr == buf + 10); - ASSERT_LABEL(ret, i_j_label); -} - -void test_strtoul() { - char buf[] = "0xffffffffffffaa"; - char *endptr = NULL; - dfsan_set_label(i_label, buf + 1, 1); - dfsan_set_label(j_label, buf + 2, 1); - long unsigned int ret = strtol(buf, &endptr, 16); - assert(ret == 72057594037927850); - assert(endptr == buf + 16); - ASSERT_LABEL(ret, i_j_label); -} - -void test_strtoull() { - char buf[] = "0xffffffffffffffaa"; - char *endptr = NULL; - dfsan_set_label(i_label, buf + 1, 1); - dfsan_set_label(j_label, buf + 2, 1); - long long unsigned int ret = strtoull(buf, &endptr, 16); - assert(ret == 0xffffffffffffffaa); - assert(endptr == buf + 18); - ASSERT_LABEL(ret, i_j_label); -} - -void test_strtod() { - char buf[] = "12345.76 foo"; - char *endptr = NULL; - dfsan_set_label(i_label, buf + 1, 1); - dfsan_set_label(j_label, buf + 6, 1); - double ret = strtod(buf, &endptr); - assert(ret == 12345.76); - assert(endptr == buf + 8); - ASSERT_LABEL(ret, i_j_label); -} - -void test_time() { - time_t t = 0; - dfsan_set_label(i_label, &t, 1); - time_t ret = time(&t); - assert(ret == t); - assert(ret > 0); - ASSERT_ZERO_LABEL(t); -} - -void test_inet_pton() { - char addr4[] = "127.0.0.1"; - dfsan_set_label(i_label, addr4 + 3, 1); - struct in_addr in4; - int ret4 = inet_pton(AF_INET, addr4, &in4); - assert(ret4 == 1); - ASSERT_READ_LABEL(&in4, sizeof(in4), i_label); - assert(in4.s_addr == 0x0100007f); - - char addr6[] = "::1"; - dfsan_set_label(j_label, addr6 + 3, 1); - struct in6_addr in6; - int ret6 = inet_pton(AF_INET6, addr6, &in6); - assert(ret6 == 1); - ASSERT_READ_LABEL(((char *) &in6) + sizeof(in6) - 1, 1, j_label); -} - -void test_localtime_r() { - time_t t0 = 1384800998; - struct tm t1; - dfsan_set_label(i_label, &t0, sizeof(t0)); - struct tm* ret = localtime_r(&t0, &t1); - assert(ret == &t1); - assert(t1.tm_min == 56); - ASSERT_LABEL(t1.tm_mon, i_label); -} - -void test_getpwuid_r() { - struct passwd pwd; - char buf[1024]; - struct passwd *result; - - dfsan_set_label(i_label, &pwd, 4); - int ret = getpwuid_r(0, &pwd, buf, sizeof(buf), &result); - assert(ret == 0); - assert(strcmp(pwd.pw_name, "root") == 0); - assert(result == &pwd); - ASSERT_READ_ZERO_LABEL(&pwd, 4); -} - -void test_poll() { - struct pollfd fd; - fd.fd = 0; - fd.events = POLLIN; - dfsan_set_label(i_label, &fd.revents, sizeof(fd.revents)); - int ret = poll(&fd, 1, 1); - ASSERT_ZERO_LABEL(fd.revents); - assert(ret >= 0); -} - -void test_select() { - struct timeval t; - fd_set fds; - t.tv_sec = 2; - FD_SET(0, &fds); - dfsan_set_label(i_label, &fds, sizeof(fds)); - dfsan_set_label(j_label, &t, sizeof(t)); - int ret = select(1, &fds, NULL, NULL, &t); - assert(ret >= 0); - ASSERT_ZERO_LABEL(t.tv_sec); - ASSERT_READ_ZERO_LABEL(&fds, sizeof(fds)); -} - -void test_sched_getaffinity() { - cpu_set_t mask; - dfsan_set_label(j_label, &mask, 1); - int ret = sched_getaffinity(0, sizeof(mask), &mask); - assert(ret == 0); - ASSERT_READ_ZERO_LABEL(&mask, sizeof(mask)); -} - -void test_sigemptyset() { - sigset_t set; - dfsan_set_label(j_label, &set, 1); - int ret = sigemptyset(&set); - assert(ret == 0); - ASSERT_READ_ZERO_LABEL(&set, sizeof(set)); -} - -void test_sigaction() { - struct sigaction oldact; - dfsan_set_label(j_label, &oldact, 1); - int ret = sigaction(SIGUSR1, NULL, &oldact); - assert(ret == 0); - ASSERT_READ_ZERO_LABEL(&oldact, sizeof(oldact)); -} - -void test_gettimeofday() { - struct timeval tv; - struct timezone tz; - dfsan_set_label(i_label, &tv, sizeof(tv)); - dfsan_set_label(j_label, &tz, sizeof(tz)); - int ret = gettimeofday(&tv, &tz); - assert(ret == 0); - ASSERT_READ_ZERO_LABEL(&tv, sizeof(tv)); - ASSERT_READ_ZERO_LABEL(&tz, sizeof(tz)); -} - -void *pthread_create_test_cb(void *p) { - assert(p == (void *)1); - ASSERT_ZERO_LABEL(p); - return (void *)2; -} + fd = open("/bin/sh", O_RDONLY); + buf[0] = i; + buf[15] = j; + rv = pread(fd, buf, sizeof(buf), 0); + assert(rv == sizeof(buf)); + assert(dfsan_get_label(buf[0]) == 0); + assert(dfsan_get_label(buf[15]) == 0); -void test_pthread_create() { pthread_t pt; - pthread_create(&pt, 0, pthread_create_test_cb, (void *)1); + pthread_create(&pt, 0, ptcb, (void *)1); void *cbrv; pthread_join(pt, &cbrv); assert(cbrv == (void *)2); -} -int dl_iterate_phdr_test_cb(struct dl_phdr_info *info, size_t size, - void *data) { - assert(data == (void *)3); - ASSERT_ZERO_LABEL(info); - ASSERT_ZERO_LABEL(size); - ASSERT_ZERO_LABEL(data); - return 0; -} + dl_iterate_phdr(dlcb, (void *)3); -void test_dl_iterate_phdr() { - dl_iterate_phdr(dl_iterate_phdr_test_cb, (void *)3); -} - -int main(void) { - i_label = dfsan_create_label("i", 0); - j_label = dfsan_create_label("j", 0); - i_j_label = dfsan_union(i_label, j_label); - - test_calloc(); - test_clock_gettime(); - test_dlopen(); - test_fstat(); - test_memcmp(); - test_memcpy(); - test_memset(); - test_pread(); - test_read(); - test_stat(); - test_strcasecmp(); - test_strchr(); - test_strcmp(); - test_strdup(); - test_strlen(); - test_strncasecmp(); - test_strncmp(); - test_strncpy(); - - test_ctime_r(); - test_fgets(); - test_getcwd(); - test_get_current_dir_name(); - test_gethostname(); - test_getrlimit(); - test_getrusage(); - test_strcpy(); - test_strtol(); - test_strtoll(); - test_strtod(); - test_strtoul(); - test_strtoull(); - test_time(); - test_inet_pton(); - test_localtime_r(); - test_getpwuid_r(); - test_poll(); - test_select(); - test_sched_getaffinity(); - test_sigemptyset(); - test_sigaction(); - test_gettimeofday(); - - test_pthread_create(); - test_dl_iterate_phdr(); + return 0; } |
