diff options
Diffstat (limited to 'contrib/netbsd-tests/fs/ptyfs/t_nullpts.c')
-rw-r--r-- | contrib/netbsd-tests/fs/ptyfs/t_nullpts.c | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/contrib/netbsd-tests/fs/ptyfs/t_nullpts.c b/contrib/netbsd-tests/fs/ptyfs/t_nullpts.c new file mode 100644 index 0000000..9265f32 --- /dev/null +++ b/contrib/netbsd-tests/fs/ptyfs/t_nullpts.c @@ -0,0 +1,128 @@ +/* $NetBSD: t_nullpts.c,v 1.5 2011/01/10 11:11:04 hannken Exp $ */ + +#include <sys/types.h> +#include <sys/mount.h> +#include <sys/ioctl.h> + +#include <atf-c.h> +#include <err.h> +#include <errno.h> +#include <fcntl.h> +#include <stdio.h> +#include <unistd.h> +#include <string.h> +#include <stdlib.h> + +#include <rump/rump.h> +#include <rump/rump_syscalls.h> + +#include <fs/ptyfs/ptyfs.h> +#include <miscfs/nullfs/null.h> + +#include "../../h_macros.h" + +static void +mountptyfs(const char *mp, int flags) +{ + struct ptyfs_args args; + + if (rump_sys_mkdir(mp, 0777) == -1) { + if (errno != EEXIST) + atf_tc_fail_errno("null create %s", mp); + } + memset(&args, 0, sizeof(args)); + args.version = PTYFS_ARGSVERSION; + args.mode = 0777; + if (rump_sys_mount(MOUNT_PTYFS, mp, flags, &args, sizeof(args)) == -1) + atf_tc_fail_errno("could not mount ptyfs"); +} + +static void +mountnull(const char *what, const char *mp, int flags) +{ + struct null_args nargs; + + if (rump_sys_mkdir(what, 0777) == -1) { + if (errno != EEXIST) + atf_tc_fail_errno("null create %s", what); + } + if (rump_sys_mkdir(mp, 0777) == -1) { + if (errno != EEXIST) + atf_tc_fail_errno("null create %s", mp); + } + memset(&nargs, 0, sizeof(nargs)); + nargs.nulla_target = __UNCONST(what); + if (rump_sys_mount(MOUNT_NULL, mp, flags, &nargs, sizeof(nargs)) == -1) + atf_tc_fail_errno("could not mount nullfs"); +} + +ATF_TC(nullrevoke); +ATF_TC_HEAD(nullrevoke, tc) +{ + atf_tc_set_md_var(tc, "descr", "null mount ptyfs and revoke"); +} + +ATF_TC_BODY(nullrevoke, tc) +{ + char path[MAXPATHLEN]; + struct ptmget ptg; + int ptm; + + rump_init(); + + /* + * mount /dev/pts + */ + mountptyfs("/dev/pts", 0); + + /* + * null mount /dev/pts to /null/dev/pts + */ + if (rump_sys_mkdir("/null", 0777) == -1) { + if (errno != EEXIST) + atf_tc_fail_errno("null create /null"); + } + if (rump_sys_mkdir("/null/dev", 0777) == -1) { + if (errno != EEXIST) + atf_tc_fail_errno("null create /null/dev"); + } + + mountnull("/dev/pts", "/null/dev/pts", 0); + + /* + * get slave/master pair. + */ + ptm = rump_sys_open("/dev/ptm", O_RDWR); + if (rump_sys_ioctl(ptm, TIOCPTMGET, &ptg) == -1) + atf_tc_fail_errno("get pty"); + + /* + * Build nullfs path to slave. + */ + strcpy(path, "/null"); + strcat(path, ptg.sn); + + /* + * Open slave tty via nullfs. + */ + if (rump_sys_open(path, O_RDWR) == -1) + atf_tc_fail_errno("slave null open"); + + /* + * Close slave opened with /dev/ptm. Need purely non-null refs to it. + */ + rump_sys_close(ptg.sfd); + + /* revoke slave tty. */ + rump_sys_revoke(path); + + /* done */ +} + +ATF_TP_ADD_TCS(tp) +{ + + ATF_TP_ADD_TC(tp, nullrevoke); + + return atf_no_error(); +} |