To do so, a few dependencies have been imported: * external/bsd/lutok * external/mit/lua * external/public-domain/sqlite * external/public-domain/xz The Kyua framework is the new generation of ATF (Automated Test Framework), it is composed of: * external/bsd/atf * external/bsd/kyua-atf-compat * external/bsd/kyua-cli * external/bsd/kyua-tester * tests Kyua/ATF being written in C++, it depends on libstdc++ which is provided by GCC. As this is not part of the sources, Kyua is only compiled when the native GCC utils are installed. To install Kyua do the following: * In a cross-build enviromnent, add the following to the build.sh commandline: -V MKBINUTILS=yes -V MKGCCCMDS=yes WARNING: At this point the import is still experimental, and not supported on native builds (a.k.a make build). Change-Id: I26aee23c5bbd2d64adcb7c1beb98fe0d479d7ada
204 lines
4.6 KiB
C
204 lines
4.6 KiB
C
/* $NetBSD: t_union.c,v 1.8 2011/08/07 06:01:51 hannken Exp $ */
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#include <sys/types.h>
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#include <sys/mount.h>
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#include <atf-c.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <string.h>
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#include <stdlib.h>
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#include <rump/rump.h>
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#include <rump/rump_syscalls.h>
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#include <miscfs/union/union.h>
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#include "../../h_macros.h"
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#include "../common/h_fsmacros.h"
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#define MSTR "magic bus"
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static void
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xput_tfile(const char *mp, const char *path)
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{
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char pathb[MAXPATHLEN];
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int fd;
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strcpy(pathb, mp);
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strcat(pathb, "/");
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strcat(pathb, path);
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RL(fd = rump_sys_open(pathb, O_CREAT | O_RDWR, 0777));
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if (rump_sys_write(fd, MSTR, sizeof(MSTR)) != sizeof(MSTR))
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atf_tc_fail_errno("write to testfile");
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RL(rump_sys_close(fd));
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}
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static int
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xread_tfile(const char *mp, const char *path)
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{
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char pathb[MAXPATHLEN];
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char buf[128];
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int fd;
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strcpy(pathb, mp);
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strcat(pathb, "/");
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strcat(pathb, path);
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fd = rump_sys_open(pathb, O_RDONLY);
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if (fd == -1)
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return errno;
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if (rump_sys_read(fd, buf, sizeof(buf)) == -1)
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atf_tc_fail_errno("read tfile");
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RL(rump_sys_close(fd));
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if (strcmp(buf, MSTR) == 0)
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return 0;
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return EPROGMISMATCH;
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}
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/*
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* Mount a unionfs for testing. Before calling, "mp" contains
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* the upper layer. Lowerpath is constructed so that the directory
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* contains rumpfs.
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*/
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static void
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mountunion(const char *mp, char *lowerpath)
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{
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struct union_args unionargs;
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sprintf(lowerpath, "/lower");
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rump_sys_mkdir(lowerpath, 0777);
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/* mount the union with our testfs as the upper layer */
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memset(&unionargs, 0, sizeof(unionargs));
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unionargs.target = lowerpath;
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unionargs.mntflags = UNMNT_BELOW;
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if (rump_sys_mount(MOUNT_UNION, mp, 0,
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&unionargs, sizeof(unionargs)) == -1) {
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if (errno == EOPNOTSUPP) {
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atf_tc_skip("fs does not support VOP_WHITEOUT");
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} else {
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atf_tc_fail_errno("union mount");
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}
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}
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}
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#if 0
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static void
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toggleroot(void)
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{
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static int status;
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status ^= MNT_RDONLY;
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printf("0x%x\n", status);
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RL(rump_sys_mount(MOUNT_RUMPFS, "/", status | MNT_UPDATE, NULL, 0));
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}
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#endif
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#define TFILE "tensti"
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#define TDIR "testdir"
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#define TDFILE TDIR "/indir"
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static void
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basic(const atf_tc_t *tc, const char *mp)
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{
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char lowerpath[MAXPATHLEN];
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char dbuf[8192];
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struct stat sb;
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struct dirent *dp;
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int error, fd, dsize;
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mountunion(mp, lowerpath);
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/* create a file in the lower layer */
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xput_tfile(lowerpath, TFILE);
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/* first, test we can read the old file from the new namespace */
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error = xread_tfile(mp, TFILE);
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if (error != 0)
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atf_tc_fail("union compare failed: %d (%s)",
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error, strerror(error));
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/* then, test upper layer writes don't affect the lower layer */
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xput_tfile(mp, "kiekko");
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if ((error = xread_tfile(lowerpath, "kiekko")) != ENOENT)
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atf_tc_fail("invisibility failed: %d (%s)",
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error, strerror(error));
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/* check that we can whiteout stuff in the upper layer */
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FSTEST_ENTER();
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RL(rump_sys_unlink(TFILE));
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ATF_REQUIRE_ERRNO(ENOENT, rump_sys_stat(TFILE, &sb) == -1);
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FSTEST_EXIT();
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/* check that the removed node is not in the directory listing */
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RL(fd = rump_sys_open(mp, O_RDONLY));
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RL(dsize = rump_sys_getdents(fd, dbuf, sizeof(dbuf)));
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for (dp = (struct dirent *)dbuf;
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(char *)dp < dbuf + dsize;
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dp = _DIRENT_NEXT(dp)) {
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if (strcmp(dp->d_name, TFILE) == 0 && dp->d_type != DT_WHT)
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atf_tc_fail("removed file non-white-outed");
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}
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RL(rump_sys_close(fd));
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RL(rump_sys_unmount(mp, 0));
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}
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static void
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whiteout(const atf_tc_t *tc, const char *mp)
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{
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char lower[MAXPATHLEN];
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struct stat sb;
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void *fsarg;
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/*
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* XXX: use ffs here to make sure any screwups in rumpfs don't
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* affect the test
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*/
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RL(ffs_fstest_newfs(tc, &fsarg, "daimage", 1024*1024*5, NULL));
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RL(ffs_fstest_mount(tc, fsarg, "/lower", 0));
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/* create a file in the lower layer */
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RL(rump_sys_chdir("/lower"));
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RL(rump_sys_mkdir(TDIR, 0777));
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RL(rump_sys_mkdir(TDFILE, 0777));
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RL(rump_sys_chdir("/"));
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RL(ffs_fstest_unmount(tc, "/lower", 0));
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RL(ffs_fstest_mount(tc, fsarg, "/lower", MNT_RDONLY));
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mountunion(mp, lower);
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FSTEST_ENTER();
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ATF_REQUIRE_ERRNO(ENOTEMPTY, rump_sys_rmdir(TDIR) == -1);
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RL(rump_sys_rmdir(TDFILE));
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RL(rump_sys_rmdir(TDIR));
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ATF_REQUIRE_ERRNO(ENOENT, rump_sys_stat(TDFILE, &sb) == -1);
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ATF_REQUIRE_ERRNO(ENOENT, rump_sys_stat(TDIR, &sb) == -1);
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RL(rump_sys_mkdir(TDIR, 0777));
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RL(rump_sys_stat(TDIR, &sb));
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ATF_REQUIRE_ERRNO(ENOENT, rump_sys_stat(TDFILE, &sb) == -1);
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FSTEST_EXIT();
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RL(rump_sys_unmount(mp, 0));
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}
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ATF_TC_FSAPPLY(basic, "check basic union functionality");
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ATF_TC_FSAPPLY(whiteout, "create whiteout in upper layer");
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ATF_TP_ADD_TCS(tp)
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{
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ATF_TP_FSAPPLY(basic);
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ATF_TP_FSAPPLY(whiteout);
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return atf_no_error();
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}
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