diff options
Diffstat (limited to 'tests/sys/fs/fusefs/release.cc')
| -rw-r--r-- | tests/sys/fs/fusefs/release.cc | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/tests/sys/fs/fusefs/release.cc b/tests/sys/fs/fusefs/release.cc index b664ba512b64..9df236bfbaf7 100644 --- a/tests/sys/fs/fusefs/release.cc +++ b/tests/sys/fs/fusefs/release.cc @@ -29,6 +29,9 @@ */ extern "C" { +#include <sys/socket.h> +#include <sys/un.h> + #include <fcntl.h> #include <unistd.h> } @@ -188,6 +191,57 @@ TEST_F(Release, ok) ASSERT_EQ(0, close(fd)) << strerror(errno); } +/* + * Nothing bad should happen when closing a Unix-domain named socket that + * contains a fusefs file descriptor within its receive buffer. + * Regression test for + * https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=289686 + */ +TEST_F(Release, scm_rights) +{ + const char FULLPATH[] = "mountpoint/some_file.txt"; + const char RELPATH[] = "some_file.txt"; + struct msghdr msg; + struct iovec iov; + char message[CMSG_SPACE(sizeof(int))]; + uint64_t ino = 42; + int fd; + int s[2]; + union { + char buf[CMSG_SPACE(sizeof(fd))]; + struct cmsghdr align; + } u; + + expect_lookup(RELPATH, ino, 1); + expect_open(ino, 0, 1); + expect_flush(ino, 1, ReturnErrno(0)); + expect_release(ino, getpid(), O_RDONLY, 0); + + ASSERT_EQ(0, socketpair(AF_UNIX, SOCK_STREAM, 0, s)) << strerror(errno); + + fd = open(FULLPATH, O_RDONLY); + ASSERT_LE(0, fd) << strerror(errno); + + memset(&message, 0, sizeof(message)); + memset(&msg, 0, sizeof(msg)); + iov.iov_base = NULL; + iov.iov_len = 0; + msg.msg_iov = &iov; + msg.msg_iovlen = 1; + msg.msg_control = u.buf, + msg.msg_controllen = sizeof(u.buf); + struct cmsghdr *cmsg = CMSG_FIRSTHDR(&msg); + cmsg->cmsg_level = SOL_SOCKET; + cmsg->cmsg_type = SCM_RIGHTS; + cmsg->cmsg_len = CMSG_LEN(sizeof(fd)); + memcpy(CMSG_DATA(cmsg), &fd, sizeof(fd)); + ASSERT_GE(sendmsg(s[0], &msg, 0), 0) << strerror(errno); + + close(fd); // Close fd within our process + close(s[0]); + close(s[1]); // The last copy of fd is within this socket's rcvbuf +} + /* When closing a file with a POSIX file lock, release should release the lock*/ TEST_F(ReleaseWithLocks, unlock_on_close) { |