minix/tests/fs/puffs/t_basic.c

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/* $NetBSD: t_basic.c,v 1.11 2011/04/04 15:42:42 plunky Exp $ */
#include <sys/types.h>
#include <sys/mount.h>
#include <sys/socket.h>
#include <assert.h>
#include <atf-c.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <pthread.h>
#include <puffs.h>
#include <puffsdump.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
#include <rump/rump.h>
#include <rump/rump_syscalls.h>
#include "../../h_macros.h"
#include "../common/h_fsmacros.h"
/*
* Do a synchronous operation. When this returns, all FAF operations
* have at least been delivered to the file system.
*
* XXX: is this really good enough considering puffs(9)-issued
* callback operations?
*/
static void
syncbar(const char *fs)
{
struct statvfs svb;
if (rump_sys_statvfs1(fs, &svb, ST_WAIT) == -1)
atf_tc_fail_errno("statvfs");
}
#ifdef PUFFSDUMP
static void __unused
dumpopcount(struct puffstestargs *args)
{
size_t i;
printf("VFS OPS:\n");
for (i = 0; i < MIN(puffsdump_vfsop_count, PUFFS_VFS_MAX); i++) {
printf("\t%s: %d\n",
puffsdump_vfsop_revmap[i], args->pta_vfs_toserv_ops[i]);
}
printf("VN OPS:\n");
for (i = 0; i < MIN(puffsdump_vnop_count, PUFFS_VN_MAX); i++) {
printf("\t%s: %d\n",
puffsdump_vnop_revmap[i], args->pta_vn_toserv_ops[i]);
}
}
#endif
ATF_TC(mount);
ATF_TC_HEAD(mount, tc)
{
atf_tc_set_md_var(tc, "descr", "puffs+dtfs un/mount test");
}
ATF_TC_BODY(mount, tc)
{
void *args;
FSTEST_CONSTRUCTOR(tc, puffs, args);
FSTEST_DESTRUCTOR(tc, puffs, args);
}
ATF_TC(root_reg);
ATF_TC_HEAD(root_reg, tc)
{
atf_tc_set_md_var(tc, "descr", "root is a regular file");
}
#define MAKEOPTS(...) \
char *theopts[] = {NULL, "-s", __VA_ARGS__, "dtfs", "n/a", NULL}
ATF_TC_BODY(root_reg, tc)
{
MAKEOPTS("-r", "reg");
void *args;
int fd, rv;
FSTEST_CONSTRUCTOR_FSPRIV(tc, puffs, args, theopts);
fd = rump_sys_open(FSTEST_MNTNAME, O_RDWR);
if (fd == -1)
atf_tc_fail_errno("open root");
if (rump_sys_write(fd, &fd, sizeof(fd)) != sizeof(fd))
atf_tc_fail_errno("write to root");
rv = rump_sys_mkdir(FSTEST_MNTNAME "/test", 0777);
ATF_REQUIRE(errno == ENOTDIR);
ATF_REQUIRE(rv == -1);
rump_sys_close(fd);
FSTEST_DESTRUCTOR(tc, puffs, args);
}
ATF_TC(root_lnk);
ATF_TC_HEAD(root_lnk, tc)
{
atf_tc_set_md_var(tc, "descr", "root is a symbolic link");
}
#define LINKSTR "/path/to/nowhere"
ATF_TC_BODY(root_lnk, tc)
{
MAKEOPTS("-r", "lnk " LINKSTR);
struct puffstestargs *pargs;
void *args;
char buf[PATH_MAX];
ssize_t len;
FSTEST_CONSTRUCTOR_FSPRIV(tc, puffs, args, theopts);
pargs = args;
if ((len = rump_sys_readlink(FSTEST_MNTNAME, buf, sizeof(buf)-1)) == -1)
atf_tc_fail_errno("readlink");
buf[len] = '\0';
ATF_REQUIRE_STREQ(buf, LINKSTR);
#if 0 /* XXX: unmount uses FOLLOW */
if (rump_sys_unmount("/mp", 0) == -1)
atf_tc_fail_errno("unmount");
#endif
}
ATF_TC(root_fifo);
ATF_TC_HEAD(root_fifo, tc)
{
atf_tc_set_md_var(tc, "descr", "root is a symbolic link");
}
#define MAGICSTR "nakit ja muusiperunat maustevoilla"
static void *
dofifow(void *arg)
{
int fd = (int)(uintptr_t)arg;
char buf[512];
printf("writing\n");
strcpy(buf, MAGICSTR);
if (rump_sys_write(fd, buf, strlen(buf)+1) != strlen(buf)+1)
atf_tc_fail_errno("write to fifo");
return NULL;
}
ATF_TC_BODY(root_fifo, tc)
{
MAKEOPTS("-r", "fifo");
void *args;
pthread_t pt;
char buf[512];
int fd;
FSTEST_CONSTRUCTOR_FSPRIV(tc, puffs, args, theopts);
fd = rump_sys_open(FSTEST_MNTNAME, O_RDWR);
if (fd == -1)
atf_tc_fail_errno("open fifo");
pthread_create(&pt, NULL, dofifow, (void *)(uintptr_t)fd);
memset(buf, 0, sizeof(buf));
if (rump_sys_read(fd, buf, sizeof(buf)) == -1)
atf_tc_fail_errno("read fifo");
ATF_REQUIRE_STREQ(buf, MAGICSTR);
rump_sys_close(fd);
FSTEST_DESTRUCTOR(tc, puffs, args);
}
ATF_TC(root_chrdev);
ATF_TC_HEAD(root_chrdev, tc)
{
atf_tc_set_md_var(tc, "descr", "root is /dev/null");
}
ATF_TC_BODY(root_chrdev, tc)
{
MAKEOPTS("-r", "chr 2 2");
void *args;
ssize_t rv;
char buf[512];
int fd;
FSTEST_CONSTRUCTOR_FSPRIV(tc, puffs, args, theopts);
fd = rump_sys_open(FSTEST_MNTNAME, O_RDWR);
if (fd == -1)
atf_tc_fail_errno("open null");
rv = rump_sys_write(fd, buf, sizeof(buf));
ATF_REQUIRE(rv == sizeof(buf));
rv = rump_sys_read(fd, buf, sizeof(buf));
ATF_REQUIRE(rv == 0);
rump_sys_close(fd);
FSTEST_DESTRUCTOR(tc, puffs, args);
}
/*
* Inactive/reclaim tests
*/
ATF_TC(inactive_basic);
ATF_TC_HEAD(inactive_basic, tc)
{
atf_tc_set_md_var(tc, "descr", "inactive gets called");
}
ATF_TC_BODY(inactive_basic, tc)
{
struct puffstestargs *pargs;
void *args;
int fd;
FSTEST_CONSTRUCTOR(tc, puffs, args);
FSTEST_ENTER();
pargs = args;
fd = rump_sys_open("file", O_CREAT | O_RDWR, 0777);
if (fd == -1)
atf_tc_fail_errno("create");
/* none yet */
ATF_REQUIRE_EQ(pargs->pta_vn_toserv_ops[PUFFS_VN_INACTIVE], 0);
rump_sys_close(fd);
/* one for file */
ATF_REQUIRE_EQ(pargs->pta_vn_toserv_ops[PUFFS_VN_INACTIVE], 1);
FSTEST_EXIT();
/* another for the mountpoint */
ATF_REQUIRE_EQ(pargs->pta_vn_toserv_ops[PUFFS_VN_INACTIVE], 2);
FSTEST_DESTRUCTOR(tc, puffs, args);
}
ATF_TC(inactive_reclaim);
ATF_TC_HEAD(inactive_reclaim, tc)
{
atf_tc_set_md_var(tc, "descr", "inactive/reclaim gets called");
}
ATF_TC_BODY(inactive_reclaim, tc)
{
struct puffstestargs *pargs;
void *args;
int fd;
FSTEST_CONSTRUCTOR(tc, puffs, args);
FSTEST_ENTER();
pargs = args;
fd = rump_sys_open("file", O_CREAT | O_RDWR, 0777);
if (fd == -1)
atf_tc_fail_errno("create");
ATF_REQUIRE_EQ(pargs->pta_vn_toserv_ops[PUFFS_VN_INACTIVE], 0);
if (rump_sys_unlink("file") == -1)
atf_tc_fail_errno("remove");
ATF_REQUIRE_EQ(pargs->pta_vn_toserv_ops[PUFFS_VN_INACTIVE], 0);
ATF_REQUIRE_EQ(pargs->pta_vn_toserv_ops[PUFFS_VN_RECLAIM], 0);
rump_sys_close(fd);
syncbar(FSTEST_MNTNAME);
ATF_REQUIRE_EQ(pargs->pta_vn_toserv_ops[PUFFS_VN_INACTIVE], 1);
ATF_REQUIRE_EQ(pargs->pta_vn_toserv_ops[PUFFS_VN_RECLAIM], 1);
FSTEST_EXIT();
FSTEST_DESTRUCTOR(tc, puffs, args);
}
ATF_TC(reclaim_hardlink);
ATF_TC_HEAD(reclaim_hardlink, tc)
{
atf_tc_set_md_var(tc, "descr", "reclaim gets called only after "
"final link is gone");
}
ATF_TC_BODY(reclaim_hardlink, tc)
{
struct puffstestargs *pargs;
void *args;
int fd;
int ianow;
FSTEST_CONSTRUCTOR(tc, puffs, args);
FSTEST_ENTER();
pargs = args;
fd = rump_sys_open("file", O_CREAT | O_RDWR, 0777);
if (fd == -1)
atf_tc_fail_errno("create");
if (rump_sys_link("file", "anotherfile") == -1)
atf_tc_fail_errno("create link");
rump_sys_close(fd);
ATF_REQUIRE_EQ(pargs->pta_vn_toserv_ops[PUFFS_VN_RECLAIM], 0);
/* unlink first hardlink */
if (rump_sys_unlink("file") == -1)
atf_tc_fail_errno("unlink 1");
ATF_REQUIRE_EQ(pargs->pta_vn_toserv_ops[PUFFS_VN_RECLAIM], 0);
ianow = pargs->pta_vn_toserv_ops[PUFFS_VN_INACTIVE];
/* unlink second hardlink */
if (rump_sys_unlink("anotherfile") == -1)
atf_tc_fail_errno("unlink 2");
syncbar(FSTEST_MNTNAME);
ATF_REQUIRE(ianow < pargs->pta_vn_toserv_ops[PUFFS_VN_INACTIVE]);
ATF_REQUIRE_EQ(pargs->pta_vn_toserv_ops[PUFFS_VN_RECLAIM], 1);
FSTEST_EXIT();
FSTEST_DESTRUCTOR(tc, puffs, args);
}
ATF_TC(unlink_accessible);
ATF_TC_HEAD(unlink_accessible, tc)
{
atf_tc_set_md_var(tc, "descr", "open file is accessible after "
"having been unlinked");
}
ATF_TC_BODY(unlink_accessible, tc)
{
MAKEOPTS("-i", "-o", "nopagecache");
struct puffstestargs *pargs;
void *args;
char buf[512];
int fd, ianow;
assert(sizeof(buf) > sizeof(MAGICSTR));
FSTEST_CONSTRUCTOR_FSPRIV(tc, puffs, args, theopts);
FSTEST_ENTER();
pargs = args;
fd = rump_sys_open("file", O_CREAT | O_RDWR, 0777);
if (fd == -1)
atf_tc_fail_errno("create");
if (rump_sys_write(fd, MAGICSTR, sizeof(MAGICSTR)) != sizeof(MAGICSTR))
atf_tc_fail_errno("write");
if (rump_sys_unlink("file") == -1)
atf_tc_fail_errno("unlink");
ATF_REQUIRE_EQ(pargs->pta_vn_toserv_ops[PUFFS_VN_RECLAIM], 0);
ianow = pargs->pta_vn_toserv_ops[PUFFS_VN_INACTIVE];
if (rump_sys_pread(fd, buf, sizeof(buf), 0) == -1)
atf_tc_fail_errno("read");
rump_sys_close(fd);
syncbar(FSTEST_MNTNAME);
ATF_REQUIRE_EQ(pargs->pta_vn_toserv_ops[PUFFS_VN_RECLAIM], 1);
ATF_REQUIRE_EQ(pargs->pta_vn_toserv_ops[PUFFS_VN_INACTIVE], ianow+1);
ATF_REQUIRE_STREQ(buf, MAGICSTR);
FSTEST_EXIT();
FSTEST_DESTRUCTOR(tc, puffs, args);
}
ATF_TC(signals);
ATF_TC_HEAD(signals, tc)
{
atf_tc_set_md_var(tc, "descr", "Checks that sending a signal can "
"cause an interrupt to puffs wait");
}
extern struct proc *rumpns_initproc;
extern void rumpns_psignal(struct proc *, int);
extern void rumpns_sigclearall(struct proc *, void *, void *);
ATF_TC_BODY(signals, tc)
{
struct stat sb;
void *args;
rump_boot_setsigmodel(RUMP_SIGMODEL_RECORD);
FSTEST_CONSTRUCTOR(tc, puffs, args);
FSTEST_ENTER();
RL(rump_sys_stat(".", &sb));
/* send SIGUSR1, should not affect puffs ops */
rump_schedule();
rumpns_psignal(rumpns_initproc, SIGUSR1);
rump_unschedule();
RL(rump_sys_stat(".", &sb));
/* send SIGTERM, should get EINTR */
rump_schedule();
rumpns_psignal(rumpns_initproc, SIGTERM);
rump_unschedule();
ATF_REQUIRE_ERRNO(EINTR, rump_sys_stat(".", &sb) == -1);
/* clear sigmask so that we can unmount */
rump_schedule();
rumpns_sigclearall(rumpns_initproc, NULL, NULL);
rump_unschedule();
FSTEST_EXIT();
FSTEST_DESTRUCTOR(tc, puffs, args);
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, mount);
ATF_TP_ADD_TC(tp, root_fifo);
ATF_TP_ADD_TC(tp, root_lnk);
ATF_TP_ADD_TC(tp, root_reg);
ATF_TP_ADD_TC(tp, root_chrdev);
ATF_TP_ADD_TC(tp, inactive_basic);
ATF_TP_ADD_TC(tp, inactive_reclaim);
ATF_TP_ADD_TC(tp, reclaim_hardlink);
ATF_TP_ADD_TC(tp, unlink_accessible);
ATF_TP_ADD_TC(tp, signals);
return atf_no_error();
}