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Sun, 6 Jul 2025 23:18:41 GMT (envelope-from git) Date: Sun, 6 Jul 2025 23:18:41 GMT Message-Id: <202507062318.566NIfxN031267@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Mark Johnston Subject: git: 63503cbe5a48 - main - tests: Adapt existing tests for O_CLOEXEC to O_CLOFORK List-Id: Commit messages for all branches of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-all List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-all@freebsd.org Sender: owner-dev-commits-src-all@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: markj X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 63503cbe5a480d1f55fc45ba7a2661ba41c2321f Auto-Submitted: auto-generated The branch main has been updated by markj: URL: https://cgit.FreeBSD.org/src/commit/?id=63503cbe5a480d1f55fc45ba7a2661ba41c2321f commit 63503cbe5a480d1f55fc45ba7a2661ba41c2321f Author: Ricardo Branco AuthorDate: 2025-06-03 23:07:17 +0000 Commit: Mark Johnston CommitDate: 2025-07-06 23:08:46 +0000 tests: Adapt existing tests for O_CLOEXEC to O_CLOFORK MFC after: 1 month Pull Request: https://github.com/freebsd/freebsd-src/pull/1698 --- tests/sys/file/closefrom_test.c | 35 +++++++++++++- tests/sys/file/dup_test.c | 98 ++++++++++++++++++++++++++++++++++++++- tests/sys/kern/unix_passfd_test.c | 25 ++++++++++ 3 files changed, 156 insertions(+), 2 deletions(-) diff --git a/tests/sys/file/closefrom_test.c b/tests/sys/file/closefrom_test.c index e30c5eb3d591..7dccf858c772 100644 --- a/tests/sys/file/closefrom_test.c +++ b/tests/sys/file/closefrom_test.c @@ -144,7 +144,7 @@ main(void) pid_t pid; int fd, flags, i, start; - printf("1..21\n"); + printf("1..22\n"); /* We'd better start up with fd's 0, 1, and 2 open. */ start = devnull(); @@ -356,5 +356,38 @@ main(void) fail_err("close_range"); ok("close_range(..., CLOSE_RANGE_CLOEXEC)"); + /* test CLOSE_RANGE_CLOFORK */ + for (i = 0; i < 8; i++) + (void)devnull(); + fd = highest_fd(); + start = fd - 8; + if (close_range(start + 1, start + 4, CLOSE_RANGE_CLOFORK) < 0) + fail_err("close_range(..., CLOSE_RANGE_CLOFORK)"); + flags = fcntl(start, F_GETFD); + if (flags < 0) + fail_err("fcntl(.., F_GETFD)"); + if ((flags & FD_CLOFORK) != 0) + fail("close_range", "CLOSE_RANGE_CLOFORK set close-on-exec " + "when it should not have on fd %d", start); + for (i = start + 1; i <= start + 4; i++) { + flags = fcntl(i, F_GETFD); + if (flags < 0) + fail_err("fcntl(.., F_GETFD)"); + if ((flags & FD_CLOFORK) == 0) + fail("close_range", "CLOSE_RANGE_CLOFORK did not set " + "close-on-exec on fd %d", i); + } + for (; i < start + 8; i++) { + flags = fcntl(i, F_GETFD); + if (flags < 0) + fail_err("fcntl(.., F_GETFD)"); + if ((flags & FD_CLOFORK) != 0) + fail("close_range", "CLOSE_RANGE_CLOFORK set close-on-exec " + "when it should not have on fd %d", i); + } + if (close_range(start, start + 8, 0) < 0) + fail_err("close_range"); + ok("close_range(..., CLOSE_RANGE_CLOFORK)"); + return (0); } diff --git a/tests/sys/file/dup_test.c b/tests/sys/file/dup_test.c index b024e72d0d1a..455115eda8c8 100644 --- a/tests/sys/file/dup_test.c +++ b/tests/sys/file/dup_test.c @@ -46,6 +46,8 @@ * Test #31: check if dup3(0) fails if oldfd == newfd. * Test #32: check if dup3(O_CLOEXEC) to a fd > current maximum number of * open files limit work. + * Tests #33-43 : Same as #18-26, 30 & 32 with O_CLOFORK instead of O_CLOEXEC, + * except F_DUP2FD_CLOEXEC. */ #include @@ -82,7 +84,7 @@ main(int __unused argc, char __unused *argv[]) orgfd = getafile(); - printf("1..32\n"); + printf("1..43\n"); /* If dup(2) ever work? */ if ((fd1 = dup(orgfd)) < 0) @@ -380,5 +382,99 @@ main(int __unused argc, char __unused *argv[]) printf("ok %d - dup3(O_CLOEXEC) didn't bypass NOFILE limit\n", test); + /* Does fcntl(F_DUPFD_CLOFORK) work? */ + if ((fd2 = fcntl(fd1, F_DUPFD_CLOFORK, 10)) < 0) + err(1, "fcntl(F_DUPFD_CLOFORK)"); + if (fd2 < 10) + printf("not ok %d - fcntl(F_DUPFD_CLOFORK) returned wrong fd %d\n", + ++test, fd2); + else + printf("ok %d - fcntl(F_DUPFD_CLOFORK) works\n", ++test); + + /* Was close-on-fork cleared? */ + ++test; + if (fcntl(fd2, F_GETFD) != FD_CLOFORK) + printf( + "not ok %d - fcntl(F_DUPFD_CLOFORK) didn't set close-on-fork\n", + test); + else + printf("ok %d - fcntl(F_DUPFD_CLOFORK) set close-on-fork\n", + test); + + /* Does dup3(O_CLOFORK) ever work? */ + if ((fd2 = dup3(fd1, fd1 + 1, O_CLOFORK)) < 0) + err(1, "dup3(O_CLOFORK)"); + printf("ok %d - dup3(O_CLOFORK) works\n", ++test); + + /* Do we get the right fd? */ + ++test; + if (fd2 != fd1 + 1) + printf( + "no ok %d - dup3(O_CLOFORK) didn't give us the right fd\n", + test); + else + printf("ok %d - dup3(O_CLOFORK) returned a correct fd\n", + test); + + /* Was close-on-fork set? */ + ++test; + if (fcntl(fd2, F_GETFD) != FD_CLOFORK) + printf( + "not ok %d - dup3(O_CLOFORK) didn't set close-on-fork\n", + test); + else + printf("ok %d - dup3(O_CLOFORK) set close-on-fork\n", + test); + + /* Does dup3(0) ever work? */ + if ((fd2 = dup3(fd1, fd1 + 1, 0)) < 0) + err(1, "dup3(0)"); + printf("ok %d - dup3(0) works\n", ++test); + + /* Do we get the right fd? */ + ++test; + if (fd2 != fd1 + 1) + printf( + "no ok %d - dup3(0) didn't give us the right fd\n", + test); + else + printf("ok %d - dup3(0) returned a correct fd\n", + test); + + /* Was close-on-fork cleared? */ + ++test; + if (fcntl(fd2, F_GETFD) != 0) + printf( + "not ok %d - dup3(0) didn't clear close-on-fork\n", + test); + else + printf("ok %d - dup3(0) cleared close-on-fork\n", + test); + + /* dup3() does not allow duplicating to the same fd */ + ++test; + if (dup3(fd1, fd1, O_CLOFORK) != -1) + printf( + "not ok %d - dup3(fd1, fd1, O_CLOFORK) succeeded\n", test); + else + printf("ok %d - dup3(fd1, fd1, O_CLOFORK) failed\n", test); + + ++test; + if (dup3(fd1, fd1, 0) != -1) + printf( + "not ok %d - dup3(fd1, fd1, 0) succeeded\n", test); + else + printf("ok %d - dup3(fd1, fd1, 0) failed\n", test); + + ++test; + if (getrlimit(RLIMIT_NOFILE, &rlp) < 0) + err(1, "getrlimit"); + if ((fd2 = dup3(fd1, rlp.rlim_cur + 1, O_CLOFORK)) >= 0) + printf("not ok %d - dup3(O_CLOFORK) bypassed NOFILE limit\n", + test); + else + printf("ok %d - dup3(O_CLOFORK) didn't bypass NOFILE limit\n", + test); + return (0); } diff --git a/tests/sys/kern/unix_passfd_test.c b/tests/sys/kern/unix_passfd_test.c index 95271c04a16b..7dc4541ad402 100644 --- a/tests/sys/kern/unix_passfd_test.c +++ b/tests/sys/kern/unix_passfd_test.c @@ -379,6 +379,30 @@ ATF_TC_BODY(simple_send_fd_msg_cmsg_cloexec, tc) closesocketpair(fd); } +/* + * Like simple_send_fd but also sets MSG_CMSG_CLOFORK and checks that the + * received file descriptor has the FD_CLOFORK flag set. + */ +ATF_TC_WITHOUT_HEAD(simple_send_fd_msg_cmsg_clofork); +ATF_TC_BODY(simple_send_fd_msg_cmsg_clofork, tc) +{ + struct stat getfd_stat, putfd_stat; + int fd[2], getfd, putfd; + + domainsocketpair(fd); + tempfile(&putfd); + dofstat(putfd, &putfd_stat); + sendfd(fd[0], putfd); + recvfd(fd[1], &getfd, MSG_CMSG_CLOFORK); + dofstat(getfd, &getfd_stat); + samefile(&putfd_stat, &getfd_stat); + ATF_REQUIRE_EQ_MSG(fcntl(getfd, F_GETFD) & FD_CLOFORK, FD_CLOFORK, + "FD_CLOFORK not set on the received file descriptor"); + close(putfd); + close(getfd); + closesocketpair(fd); +} + /* * Same as simple_send_fd, only close the file reference after sending, so that * the only reference is the descriptor in the UNIX domain socket buffer. @@ -1170,6 +1194,7 @@ ATF_TP_ADD_TCS(tp) ATF_TP_ADD_TC(tp, simple_send_fd); ATF_TP_ADD_TC(tp, simple_send_fd_msg_cmsg_cloexec); + ATF_TP_ADD_TC(tp, simple_send_fd_msg_cmsg_clofork); ATF_TP_ADD_TC(tp, send_and_close); ATF_TP_ADD_TC(tp, send_and_cancel); ATF_TP_ADD_TC(tp, send_and_shutdown);