From 548a225fb616ee66afb8411f282d44148f67898c Mon Sep 17 00:00:00 2001
From: Alice Frosi <afrosi@redhat.com>
Date: Thu, 30 Mar 2023 13:55:48 +0200
Subject: test: moving shareable function in a separate file

---
 tests/unit/test_operations.c | 177 ++-----------------------------------------
 1 file changed, 5 insertions(+), 172 deletions(-)

(limited to 'tests/unit/test_operations.c')

diff --git a/tests/unit/test_operations.c b/tests/unit/test_operations.c
index c60fa4f..bb098b8 100644
--- a/tests/unit/test_operations.c
+++ b/tests/unit/test_operations.c
@@ -28,187 +28,17 @@
 #include "gluten.h"
 #include "operations.h"
 #include "common.h"
-#include "util.h"
+#include "testutil.h"
 
 #define MAX_TEST_PATH 250
 
-struct args_target {
-	long ret;
-	int err;
-	bool check_fd;
-	bool open_path;
-	int fd;
-	int nr;
-	void *args[6];
-};
-
-struct seccomp_notif req;
-int notifyfd;
-struct args_target *at;
-int pipefd[2];
-pid_t pid;
-char path[] = "/tmp/test-seitan";
-
-uint16_t tmp_data[TMP_DATA_SIZE];
-
-static int install_notification_filter(int nr)
-{
-	int fd;
-	/* filter a single syscall for the tests */
-	struct sock_filter filter[] = {
-		BPF_STMT(BPF_LD | BPF_W | BPF_ABS,
-			 (offsetof(struct seccomp_data, arch))),
-		BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, SEITAN_AUDIT_ARCH, 0, 3),
-		BPF_STMT(BPF_LD | BPF_W | BPF_ABS,
-			 (offsetof(struct seccomp_data, nr))),
-		BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, nr, 0, 1),
-		BPF_STMT(BPF_RET | BPF_K, SECCOMP_RET_USER_NOTIF),
-		BPF_STMT(BPF_RET + BPF_K, SECCOMP_RET_ALLOW),
-	};
-	return install_filter(
-		&filter, (unsigned short)(sizeof(filter) / sizeof(filter[0])));
-}
-
-static int create_test_fd()
-{
-	return open("/tmp", O_RDWR | O_TMPFILE);
-}
-
-static int target()
-{
-	int buf = 0;
-	if (install_notification_filter(at->nr) < 0) {
-		return -1;
-	}
-
-	at->ret = syscall(at->nr, at->args[0], at->args[1], at->args[2],
-			  at->args[3], at->args[4], at->args[5]);
-	at->err = errno;
-	if (at->open_path) {
-		if ((at->fd = open(path, O_CREAT | O_RDONLY)) < 0) {
-			perror("open");
-			return -1;
-		}
-	}
-	if (at->check_fd)
-		read(pipefd[0], &buf, 1);
-
-	close(pipefd[0]);
-
-	write(pipefd[1], &buf, 1);
-	close(pipefd[1]);
-	exit(0);
-}
-
-static pid_t do_clone(int (*fn)(void *), void *arg)
-{
-	char stack[STACK_SIZE];
-	pid_t child;
-	int flags = SIGCHLD;
-
-	child = clone(fn, stack + sizeof(stack), flags, arg);
-	if (child == -1) {
-		perror("clone");
-		return -1;
-	}
-	return child;
-}
-
-int get_fd_notifier(pid_t pid)
-{
-	char path[PATH_MAX + 1];
-	int pidfd, notifier;
-	int fd = -1;
-
-	snprintf(path, sizeof(path), "/proc/%d/fd", pid);
-	while (fd < 0) {
-		sleep(2);
-		fd = find_fd_seccomp_notifier(path);
-	}
-	ck_assert_int_ge(fd, 0);
-	pidfd = syscall(SYS_pidfd_open, pid, 0);
-	ck_assert_msg(pidfd >= 0, strerror(errno));
-	sleep(1);
-	notifier = syscall(SYS_pidfd_getfd, pidfd, fd, 0);
-	ck_assert_msg(notifier >= 0, strerror(errno));
-	return notifier;
-}
-
-static void check_target_result(long ret, int err, bool ignore_ret)
-{
-	int buf;
-
-	read(pipefd[0], &buf, 1);
-	if (!ignore_ret)
-		ck_assert_msg(at->ret == ret,
-			      "expect return value %ld to be equal to %ld",
-			      at->ret, ret);
-	ck_assert_int_eq(at->err, err);
-	ck_assert_int_eq(close(pipefd[0]), 0);
-}
-
-void target_exit()
-{
-	int status;
-
-	waitpid(-1, &status, WUNTRACED | WNOHANG);
-	if (WEXITSTATUS(status) != 0) {
-		fprintf(stderr, "target process exited with an error\n");
-		exit(-1);
-	}
-}
-
-static bool has_fd(int pid, int fd)
-{
-	char path[PATH_MAX + 1];
-
-	snprintf(path, sizeof(path), "/proc/%d/fd/%d", pid, fd);
-	return access(path, F_OK) == 0;
-}
-
-static void check_target_fd(int pid, int fd)
-{
-	int buf = 0;
-
-	ck_assert(has_fd(pid, fd));
-	write(pipefd[1], &buf, 1);
-	close(pipefd[1]);
-}
-
-void setup()
-{
-	int ret;
-
-	signal(SIGCHLD, target_exit);
-	ck_assert_int_ne(pipe(pipefd), -1);
-	pid = do_clone(target, NULL);
-	ck_assert_int_ge(pid, 0);
-
-	/* Use write pipe to sync the target for checking the existance of the fd */
-	if (!at->check_fd)
-		ck_assert_int_ne(close(pipefd[1]), -1);
-
-	notifyfd = get_fd_notifier(pid);
-
-	memset(&req, 0, sizeof(req));
-	ret = ioctl(notifyfd, SECCOMP_IOCTL_NOTIF_RECV, &req);
-	ck_assert_msg(ret == 0, strerror(errno));
-	ck_assert_msg((req.data).nr == at->nr, "filter syscall nr: %d",
-		      (req.data).nr);
-}
-
-void teardown()
-{
-	if (at != NULL)
-		munmap(at, sizeof(struct args_target));
-}
-
 void setup_without_fd()
 {
 	at = mmap(NULL, sizeof(struct args_target), PROT_READ | PROT_WRITE,
 		  MAP_SHARED | MAP_ANONYMOUS, -1, 0);
 	at->check_fd = false;
 	at->nr = __NR_getpid;
+	at->install_filter = install_notification_filter;
 	setup();
 }
 void setup_fd()
@@ -217,6 +47,7 @@ void setup_fd()
 		  MAP_SHARED | MAP_ANONYMOUS, -1, 0);
 	at->check_fd = true;
 	at->nr = __NR_getpid;
+	at->install_filter = install_notification_filter;
 	setup();
 }
 
@@ -226,6 +57,7 @@ void setup_path()
 		  MAP_SHARED | MAP_ANONYMOUS, -1, 0);
 	at->open_path = true;
 	at->nr = __NR_getpid;
+	at->install_filter = install_notification_filter;
 	setup();
 }
 
@@ -248,6 +80,7 @@ void setup_target_connect()
 	at->args[0] = (void *)(long)fd;
 	at->args[1] = (void *)&addr;
 	at->args[2] = (void *)(long)len;
+	at->install_filter = install_notification_filter;
 	setup();
 }
 
-- 
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