minix/tests/fs/umapfs/t_basic.c

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/* $NetBSD: t_basic.c,v 1.4 2010/07/19 15:35:39 pooka Exp $ */
#include <sys/types.h>
#include <sys/param.h>
#include <sys/mount.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 <rump/rumpvfs_if_pub.h>
#include <fs/tmpfs/tmpfs_args.h>
#include <miscfs/umapfs/umap.h>
#include "../../h_macros.h"
ATF_TC(basic);
ATF_TC_HEAD(basic, tc)
{
atf_tc_set_md_var(tc, "descr", "basic umapfs mapping");
}
static void
xtouch(const char *path)
{
int fd;
fd = rump_sys_open(path, O_CREAT | O_RDWR, 0777);
if (fd == -1)
atf_tc_fail_errno("create %s", path);
rump_sys_close(fd);
}
static void
xchown(const char *path, uid_t uid, gid_t gid)
{
if (rump_sys_chown(path, uid, gid) == -1)
atf_tc_fail_errno("chown %s failed", path);
}
static void
testuidgid(const char *path, uid_t uid, gid_t gid)
{
struct stat sb;
if (rump_sys_stat(path, &sb) == -1)
atf_tc_fail_errno("stat %s", path);
if (uid != (uid_t)-1) {
if (sb.st_uid != uid)
atf_tc_fail("%s: expected uid %d, got %d",
path, uid, sb.st_uid);
}
if (gid != (gid_t)-1) {
if (sb.st_gid != gid)
atf_tc_fail("%s: expected gid %d, got %d",
path, gid, sb.st_gid);
}
}
ATF_TC_BODY(basic, tc)
{
struct umap_args umargs;
struct tmpfs_args targs;
u_long umaps[2][2];
u_long gmaps[2][2];
rump_init();
if (rump_sys_mkdir("/td1", 0777) == -1)
atf_tc_fail_errno("mp1");
if (rump_sys_mkdir("/td2", 0777) == -1)
atf_tc_fail_errno("mp1");
/* use tmpfs because rumpfs doesn't support ownership */
memset(&targs, 0, sizeof(targs));
targs.ta_version = TMPFS_ARGS_VERSION;
targs.ta_root_mode = 0777;
if (rump_sys_mount(MOUNT_TMPFS, "/td1", 0, &targs, sizeof(targs)) == -1)
atf_tc_fail_errno("could not mount tmpfs td1");
memset(&umargs, 0, sizeof(umargs));
/*
* Map td1 uid 555 to td2 uid 777 (yes, IMHO the umapfs
* mapping format is counter-intuitive).
*/
umaps[0][0] = 777;
umaps[0][1] = 555;
umaps[1][0] = 0;
umaps[1][1] = 0;
gmaps[0][0] = 4321;
gmaps[0][1] = 1234;
gmaps[1][0] = 0;
gmaps[1][1] = 0;
umargs.umap_target = __UNCONST("/td1");
umargs.nentries = 2;
umargs.gnentries = 2;
umargs.mapdata = umaps;
umargs.gmapdata = gmaps;
if (rump_sys_mount(MOUNT_UMAP, "/td2", 0, &umargs,sizeof(umargs)) == -1)
atf_tc_fail_errno("could not mount umapfs");
xtouch("/td1/noch");
testuidgid("/td1/noch", 0, 0);
testuidgid("/td2/noch", 0, 0);
xtouch("/td1/nomap");
xchown("/td1/nomap", 1, 2);
testuidgid("/td1/nomap", 1, 2);
testuidgid("/td2/nomap", -1, -1);
xtouch("/td1/forwmap");
xchown("/td1/forwmap", 555, 1234);
testuidgid("/td1/forwmap", 555, 1234);
testuidgid("/td2/forwmap", 777, 4321);
/*
* this *CANNOT* be correct???
*/
xtouch("/td1/revmap");
/*
* should be 777 / 4321 (?), but makes first test fail since
* it gets 777 / 4321, i.e. unmapped results.
*/
xchown("/td2/revmap", 555, 1234);
testuidgid("/td1/revmap", 555, 1234);
testuidgid("/td2/revmap", 777, 4321);
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, basic);
return 0; /*XXX?*/
}