1 files changed, 466 insertions, 0 deletions
diff --git a/tools/regression/capsicum/syscalls/cap_ioctls_limit.c b/tools/regression/capsicum/syscalls/cap_ioctls_limit.c
new file mode 100644
index 000000000000..c8cf03207e57
--- /dev/null
+++ b/tools/regression/capsicum/syscalls/cap_ioctls_limit.c
@@ -0,0 +1,466 @@
+/*-
+ * Copyright (c) 2012 The FreeBSD Foundation
+ *
+ * This software was developed by Pawel Jakub Dawidek under sponsorship from
+ * the FreeBSD Foundation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/param.h>
+#include <sys/capsicum.h>
+#include <sys/ioctl.h>
+#include <sys/procdesc.h>
+#include <sys/socket.h>
+#include <sys/wait.h>
+
+#include <err.h>
+#include <errno.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "misc.h"
+
+static void
+ioctl_tests_0(int fd)
+{
+	unsigned long cmds[2];
+
+	CHECK(cap_ioctls_get(fd, NULL, 0) == CAP_IOCTLS_ALL);
+
+	CHECK(fcntl(fd, F_GETFD) == 0);
+	CHECK(ioctl(fd, FIOCLEX) == 0);
+	CHECK(fcntl(fd, F_GETFD) == FD_CLOEXEC);
+	CHECK(ioctl(fd, FIONCLEX) == 0);
+	CHECK(fcntl(fd, F_GETFD) == 0);
+
+	cmds[0] = FIOCLEX;
+	cmds[1] = FIONCLEX;
+	CHECK(cap_ioctls_limit(fd, cmds, nitems(cmds)) == 0);
+	cmds[0] = cmds[1] = 0;
+	CHECK(cap_ioctls_get(fd, cmds, nitems(cmds)) == nitems(cmds));
+	CHECK((cmds[0] == FIOCLEX && cmds[1] == FIONCLEX) ||
+	    (cmds[0] == FIONCLEX && cmds[1] == FIOCLEX));
+	cmds[0] = FIOCLEX;
+	cmds[1] = FIONCLEX;
+	CHECK(cap_ioctls_limit(fd, cmds, nitems(cmds)) == 0);
+	cmds[0] = cmds[1] = 0;
+	CHECK(cap_ioctls_get(fd, cmds, 1) == nitems(cmds));
+	CHECK(cmds[0] == FIOCLEX || cmds[0] == FIONCLEX);
+	CHECK(cmds[1] == 0);
+
+	CHECK(fcntl(fd, F_GETFD) == 0);
+	CHECK(ioctl(fd, FIOCLEX) == 0);
+	CHECK(fcntl(fd, F_GETFD) == FD_CLOEXEC);
+	CHECK(ioctl(fd, FIONCLEX) == 0);
+	CHECK(fcntl(fd, F_GETFD) == 0);
+
+	cmds[0] = FIOCLEX;
+	CHECK(cap_ioctls_limit(fd, cmds, 1) == 0);
+	cmds[0] = cmds[1] = 0;
+	CHECK(cap_ioctls_get(fd, cmds, nitems(cmds)) == 1);
+	CHECK(cmds[0] == FIOCLEX);
+	cmds[0] = FIOCLEX;
+	cmds[1] = FIONCLEX;
+	errno = 0;
+	CHECK(cap_ioctls_limit(fd, cmds, nitems(cmds)) == -1);
+	CHECK(errno == ENOTCAPABLE);
+	cmds[0] = cmds[1] = 0;
+	CHECK(cap_ioctls_get(fd, cmds, nitems(cmds)) == 1);
+	CHECK(cmds[0] == FIOCLEX);
+
+	CHECK(fcntl(fd, F_GETFD) == 0);
+	CHECK(ioctl(fd, FIOCLEX) == 0);
+	CHECK(fcntl(fd, F_GETFD) == FD_CLOEXEC);
+	errno = 0;
+	CHECK(ioctl(fd, FIONCLEX) == -1);
+	CHECK(errno == ENOTCAPABLE);
+	CHECK(fcntl(fd, F_GETFD) == FD_CLOEXEC);
+	CHECK(fcntl(fd, F_SETFD, 0) == 0);
+	CHECK(fcntl(fd, F_GETFD) == 0);
+
+	CHECK(cap_ioctls_limit(fd, NULL, 0) == 0);
+	CHECK(cap_ioctls_get(fd, cmds, nitems(cmds)) == 0);
+	cmds[0] = FIOCLEX;
+	errno = 0;
+	CHECK(cap_ioctls_limit(fd, cmds, 1) == -1);
+	CHECK(errno == ENOTCAPABLE);
+	CHECK(cap_ioctls_get(fd, cmds, nitems(cmds)) == 0);
+
+	CHECK(fcntl(fd, F_GETFD) == 0);
+	errno = 0;
+	CHECK(ioctl(fd, FIOCLEX) == -1);
+	CHECK(errno == ENOTCAPABLE);
+	CHECK(fcntl(fd, F_GETFD) == 0);
+	CHECK(fcntl(fd, F_SETFD, FD_CLOEXEC) == 0);
+	CHECK(fcntl(fd, F_GETFD) == FD_CLOEXEC);
+	errno = 0;
+	CHECK(ioctl(fd, FIONCLEX) == -1);
+	CHECK(errno == ENOTCAPABLE);
+	CHECK(fcntl(fd, F_GETFD) == FD_CLOEXEC);
+	CHECK(fcntl(fd, F_SETFD, 0) == 0);
+	CHECK(fcntl(fd, F_GETFD) == 0);
+}
+
+static void
+ioctl_tests_1(int fd)
+{
+	unsigned long cmds[2];
+	cap_rights_t rights;
+
+	cmds[0] = FIOCLEX;
+	CHECK(cap_ioctls_limit(fd, cmds, 1) == 0);
+	cmds[0] = cmds[1] = 0;
+	CHECK(cap_ioctls_get(fd, cmds, nitems(cmds)) == 1);
+	CHECK(cmds[0] == FIOCLEX);
+	CHECK(cmds[1] == 0);
+
+	CAP_ALL(&rights);
+	cap_rights_clear(&rights, CAP_IOCTL);
+
+	CHECK(cap_rights_limit(fd, &rights) == 0);
+	CHECK(cap_ioctls_get(fd, cmds, nitems(cmds)) == 0);
+
+	cmds[0] = FIOCLEX;
+	cmds[1] = FIONCLEX;
+	errno = 0;
+	CHECK(cap_ioctls_limit(fd, cmds, nitems(cmds)) == -1);
+	CHECK(errno == ENOTCAPABLE);
+	CHECK(cap_ioctls_get(fd, cmds, nitems(cmds)) == 0);
+	cmds[0] = FIOCLEX;
+	errno = 0;
+	CHECK(cap_ioctls_limit(fd, cmds, 1) == -1);
+	CHECK(errno == ENOTCAPABLE);
+	CHECK(cap_ioctls_get(fd, cmds, nitems(cmds)) == 0);
+
+	CHECK(fcntl(fd, F_GETFD) == 0);
+	errno = 0;
+	CHECK(ioctl(fd, FIOCLEX) == -1);
+	CHECK(errno == ENOTCAPABLE);
+	CHECK(fcntl(fd, F_GETFD) == 0);
+	CHECK(fcntl(fd, F_SETFD, FD_CLOEXEC) == 0);
+	CHECK(fcntl(fd, F_GETFD) == FD_CLOEXEC);
+	errno = 0;
+	CHECK(ioctl(fd, FIONCLEX) == -1);
+	CHECK(errno == ENOTCAPABLE);
+	CHECK(fcntl(fd, F_GETFD) == FD_CLOEXEC);
+	CHECK(fcntl(fd, F_SETFD, 0) == 0);
+	CHECK(fcntl(fd, F_GETFD) == 0);
+}
+
+static void
+ioctl_tests_2(int fd)
+{
+	unsigned long cmds[2];
+	cap_rights_t rights;
+
+	CAP_ALL(&rights);
+	cap_rights_clear(&rights, CAP_IOCTL);
+
+	CHECK(cap_rights_limit(fd, &rights) == 0);
+	CHECK(cap_ioctls_get(fd, cmds, nitems(cmds)) == 0);
+
+	cmds[0] = FIOCLEX;
+	cmds[1] = FIONCLEX;
+	errno = 0;
+	CHECK(cap_ioctls_limit(fd, cmds, nitems(cmds)) == -1);
+	CHECK(errno == ENOTCAPABLE);
+	CHECK(cap_ioctls_get(fd, cmds, nitems(cmds)) == 0);
+	cmds[0] = FIOCLEX;
+	errno = 0;
+	CHECK(cap_ioctls_limit(fd, cmds, 1) == -1);
+	CHECK(errno == ENOTCAPABLE);
+	CHECK(cap_ioctls_get(fd, cmds, nitems(cmds)) == 0);
+
+	CHECK(fcntl(fd, F_GETFD) == 0);
+	errno = 0;
+	CHECK(ioctl(fd, FIOCLEX) == -1);
+	CHECK(errno == ENOTCAPABLE);
+	CHECK(fcntl(fd, F_GETFD) == 0);
+	CHECK(fcntl(fd, F_SETFD, FD_CLOEXEC) == 0);
+	CHECK(fcntl(fd, F_GETFD) == FD_CLOEXEC);
+	errno = 0;
+	CHECK(ioctl(fd, FIONCLEX) == -1);
+	CHECK(errno == ENOTCAPABLE);
+	CHECK(fcntl(fd, F_GETFD) == FD_CLOEXEC);
+	CHECK(fcntl(fd, F_SETFD, 0) == 0);
+	CHECK(fcntl(fd, F_GETFD) == 0);
+}
+
+static void
+ioctl_tests_send_0(int sock)
+{
+	unsigned long cmds[2];
+	int fd;
+
+	CHECK((fd = socket(AF_UNIX, SOCK_STREAM, 0)) >= 0);
+	CHECK(descriptor_send(sock, fd) == 0);
+	CHECK(close(fd) == 0);
+
+	CHECK((fd = socket(AF_UNIX, SOCK_STREAM, 0)) >= 0);
+	cmds[0] = FIOCLEX;
+	cmds[1] = FIONCLEX;
+	CHECK(cap_ioctls_limit(fd, cmds, nitems(cmds)) == 0);
+	CHECK(descriptor_send(sock, fd) == 0);
+	CHECK(close(fd) == 0);
+
+	CHECK((fd = socket(AF_UNIX, SOCK_STREAM, 0)) >= 0);
+	cmds[0] = FIOCLEX;
+	CHECK(cap_ioctls_limit(fd, cmds, 1) == 0);
+	CHECK(descriptor_send(sock, fd) == 0);
+	CHECK(close(fd) == 0);
+
+	CHECK((fd = socket(AF_UNIX, SOCK_STREAM, 0)) >= 0);
+	CHECK(cap_ioctls_limit(fd, NULL, 0) == 0);
+	CHECK(descriptor_send(sock, fd) == 0);
+	CHECK(close(fd) == 0);
+}
+
+static void
+ioctl_tests_recv_0(int sock)
+{
+	unsigned long cmds[2];
+	int fd;
+
+	CHECK(descriptor_recv(sock, &fd) == 0);
+
+	CHECK(cap_ioctls_get(fd, NULL, 0) == CAP_IOCTLS_ALL);
+
+	CHECK(fcntl(fd, F_GETFD) == 0);
+	CHECK(ioctl(fd, FIOCLEX) == 0);
+	CHECK(fcntl(fd, F_GETFD) == FD_CLOEXEC);
+	CHECK(ioctl(fd, FIONCLEX) == 0);
+	CHECK(fcntl(fd, F_GETFD) == 0);
+
+	CHECK(close(fd) == 0);
+
+	CHECK(descriptor_recv(sock, &fd) == 0);
+
+	cmds[0] = cmds[1] = 0;
+	CHECK(cap_ioctls_get(fd, cmds, nitems(cmds)) == nitems(cmds));
+	CHECK((cmds[0] == FIOCLEX && cmds[1] == FIONCLEX) ||
+	    (cmds[0] == FIONCLEX && cmds[1] == FIOCLEX));
+
+	CHECK(fcntl(fd, F_GETFD) == 0);
+	CHECK(ioctl(fd, FIOCLEX) == 0);
+	CHECK(fcntl(fd, F_GETFD) == FD_CLOEXEC);
+	CHECK(ioctl(fd, FIONCLEX) == 0);
+	CHECK(fcntl(fd, F_GETFD) == 0);
+
+	CHECK(close(fd) == 0);
+
+	CHECK(descriptor_recv(sock, &fd) == 0);
+
+	cmds[0] = cmds[1] = 0;
+	CHECK(cap_ioctls_get(fd, cmds, nitems(cmds)) == 1);
+	CHECK(cmds[0] == FIOCLEX);
+
+	CHECK(fcntl(fd, F_GETFD) == 0);
+	CHECK(ioctl(fd, FIOCLEX) == 0);
+	CHECK(fcntl(fd, F_GETFD) == FD_CLOEXEC);
+	errno = 0;
+	CHECK(ioctl(fd, FIONCLEX) == -1);
+	CHECK(errno == ENOTCAPABLE);
+	CHECK(fcntl(fd, F_GETFD) == FD_CLOEXEC);
+	CHECK(fcntl(fd, F_SETFD, 0) == 0);
+	CHECK(fcntl(fd, F_GETFD) == 0);
+
+	CHECK(close(fd) == 0);
+
+	CHECK(descriptor_recv(sock, &fd) == 0);
+
+	CHECK(cap_ioctls_get(fd, cmds, nitems(cmds)) == 0);
+
+	CHECK(fcntl(fd, F_GETFD) == 0);
+	errno = 0;
+	CHECK(ioctl(fd, FIOCLEX) == -1);
+	CHECK(errno == ENOTCAPABLE);
+	CHECK(fcntl(fd, F_GETFD) == 0);
+	CHECK(fcntl(fd, F_SETFD, FD_CLOEXEC) == 0);
+	CHECK(fcntl(fd, F_GETFD) == FD_CLOEXEC);
+	errno = 0;
+	CHECK(ioctl(fd, FIONCLEX) == -1);
+	CHECK(errno == ENOTCAPABLE);
+	CHECK(fcntl(fd, F_GETFD) == FD_CLOEXEC);
+	CHECK(fcntl(fd, F_SETFD, 0) == 0);
+	CHECK(fcntl(fd, F_GETFD) == 0);
+
+	CHECK(close(fd) == 0);
+}
+
+int
+main(void)
+{
+	int fd, pfd, sp[2];
+	pid_t pid;
+
+	printf("1..607\n");
+
+	CHECK((fd = socket(AF_UNIX, SOCK_STREAM, 0)) >= 0);
+	ioctl_tests_0(fd);
+	CHECK(close(fd) == 0);
+
+	CHECK((fd = socket(AF_UNIX, SOCK_STREAM, 0)) >= 0);
+	ioctl_tests_1(fd);
+	CHECK(close(fd) == 0);
+
+	CHECK((fd = socket(AF_UNIX, SOCK_STREAM, 0)) >= 0);
+	ioctl_tests_2(fd);
+	CHECK(close(fd) == 0);
+
+	/* Child inherits descriptor and operates on it first. */
+	CHECK((fd = socket(AF_UNIX, SOCK_STREAM, 0)) >= 0);
+	pid = fork();
+	switch (pid) {
+	case -1:
+		err(1, "fork() failed");
+	case 0:
+		ioctl_tests_0(fd);
+		CHECK(close(fd) == 0);
+		exit(0);
+	default:
+		if (waitpid(pid, NULL, 0) == -1)
+			err(1, "waitpid() failed");
+		ioctl_tests_0(fd);
+	}
+	CHECK(close(fd) == 0);
+
+	/* Child inherits descriptor, but operates on it after parent. */
+	CHECK((fd = socket(AF_UNIX, SOCK_STREAM, 0)) >= 0);
+	pid = fork();
+	switch (pid) {
+	case -1:
+		err(1, "fork() failed");
+	case 0:
+		sleep(1);
+		ioctl_tests_0(fd);
+		CHECK(close(fd) == 0);
+		exit(0);
+	default:
+		ioctl_tests_0(fd);
+		if (waitpid(pid, NULL, 0) == -1)
+			err(1, "waitpid() failed");
+	}
+	CHECK(close(fd) == 0);
+
+	/* Child inherits descriptor and operates on it first. */
+	CHECK((fd = socket(AF_UNIX, SOCK_STREAM, 0)) >= 0);
+	pid = pdfork(&pfd, 0);
+	switch (pid) {
+	case -1:
+		err(1, "pdfork() failed");
+	case 0:
+		ioctl_tests_1(fd);
+		exit(0);
+	default:
+		if (pdwait(pfd) == -1)
+			err(1, "pdwait() failed");
+		close(pfd);
+		ioctl_tests_1(fd);
+	}
+	CHECK(close(fd) == 0);
+
+	/* Child inherits descriptor, but operates on it after parent. */
+	CHECK((fd = socket(AF_UNIX, SOCK_STREAM, 0)) >= 0);
+	pid = pdfork(&pfd, 0);
+	switch (pid) {
+	case -1:
+		err(1, "pdfork() failed");
+	case 0:
+		sleep(1);
+		ioctl_tests_1(fd);
+		exit(0);
+	default:
+		ioctl_tests_1(fd);
+		if (pdwait(pfd) == -1)
+			err(1, "pdwait() failed");
+		close(pfd);
+	}
+	CHECK(close(fd) == 0);
+
+	/* Child inherits descriptor and operates on it first. */
+	CHECK((fd = socket(AF_UNIX, SOCK_STREAM, 0)) >= 0);
+	pid = fork();
+	switch (pid) {
+	case -1:
+		err(1, "fork() failed");
+	case 0:
+		ioctl_tests_2(fd);
+		exit(0);
+	default:
+		if (waitpid(pid, NULL, 0) == -1)
+			err(1, "waitpid() failed");
+		ioctl_tests_2(fd);
+	}
+	CHECK(close(fd) == 0);
+
+	/* Child inherits descriptor, but operates on it after parent. */
+	CHECK((fd = socket(AF_UNIX, SOCK_STREAM, 0)) >= 0);
+	pid = fork();
+	switch (pid) {
+	case -1:
+		err(1, "fork() failed");
+	case 0:
+		sleep(1);
+		ioctl_tests_2(fd);
+		exit(0);
+	default:
+		ioctl_tests_2(fd);
+		if (waitpid(pid, NULL, 0) == -1)
+			err(1, "waitpid() failed");
+	}
+	CHECK(close(fd) == 0);
+
+	/* Send descriptors from parent to child. */
+	CHECK(socketpair(AF_UNIX, SOCK_STREAM, 0, sp) == 0);
+	CHECK((pid = fork()) >= 0);
+	if (pid == 0) {
+		CHECK(close(sp[0]) == 0);
+		ioctl_tests_recv_0(sp[1]);
+		CHECK(close(sp[1]) == 0);
+		exit(0);
+	} else {
+		CHECK(close(sp[1]) == 0);
+		ioctl_tests_send_0(sp[0]);
+		CHECK(waitpid(pid, NULL, 0) == pid);
+		CHECK(close(sp[0]) == 0);
+	}
+
+	/* Send descriptors from child to parent. */
+	CHECK(socketpair(AF_UNIX, SOCK_STREAM, 0, sp) == 0);
+	CHECK((pid = fork()) >= 0);
+	if (pid == 0) {
+		CHECK(close(sp[0]) == 0);
+		ioctl_tests_send_0(sp[1]);
+		CHECK(close(sp[1]) == 0);
+		exit(0);
+	} else {
+		CHECK(close(sp[1]) == 0);
+		ioctl_tests_recv_0(sp[0]);
+		CHECK(waitpid(pid, NULL, 0) == pid);
+		CHECK(close(sp[0]) == 0);
+	}
+
+	exit(0);
+}