128 lines
2.9 KiB
C
128 lines
2.9 KiB
C
/* $NetBSD: t_basic.c,v 1.4 2010/06/04 08:39:40 jmmv 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 <ufs/ufs/ufsmount.h>
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#include "../../h_macros.h"
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ATF_TC(basic);
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ATF_TC_HEAD(basic, tc)
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{
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atf_tc_set_md_var(tc, "descr", "basic union functionality: two views");
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atf_tc_set_md_var(tc, "use.fs", "true");
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}
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#define MSTR "magic bus"
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static void
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xput_tfile(const char *path)
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{
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int fd;
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fd = rump_sys_open(path, O_CREAT | O_RDWR, 0777);
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if (fd == -1)
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atf_tc_fail_errno("create %s", path);
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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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rump_sys_close(fd);
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}
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static int
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xread_tfile(const char *path)
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{
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char buf[128];
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int fd;
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fd = rump_sys_open(path, 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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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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#define IMG1 "atf1.img"
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#define IMG2 "atf2.img"
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#define DEV1 "/dev/fs1"
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#define DEV2 "/dev/fs2"
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#define newfs_base "newfs -F -s 10000 "
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ATF_TC_BODY(basic, tc)
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{
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struct ufs_args args;
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struct union_args unionargs;
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int error;
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if (system(newfs_base IMG1) == -1)
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atf_tc_fail_errno("create img1");
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if (system(newfs_base IMG2) == -1)
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atf_tc_fail_errno("create img2");
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rump_init();
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rump_pub_etfs_register(DEV1, IMG1, RUMP_ETFS_BLK);
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rump_pub_etfs_register(DEV2, IMG2, RUMP_ETFS_BLK);
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if (rump_sys_mkdir("/mp1", 0777) == -1)
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atf_tc_fail_errno("mp1");
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if (rump_sys_mkdir("/mp2", 0777) == -1)
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atf_tc_fail_errno("mp1");
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memset(&args, 0, sizeof(args));
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args.fspec = __UNCONST(DEV1);
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if (rump_sys_mount(MOUNT_FFS, "/mp1", 0, &args, sizeof(args)) == -1)
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atf_tc_fail_errno("could not mount ffs1");
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memset(&args, 0, sizeof(args));
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args.fspec = __UNCONST(DEV2);
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if (rump_sys_mount(MOUNT_FFS, "/mp2", 0, &args, sizeof(args)) == -1)
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atf_tc_fail_errno("could not mount tmpfs2");
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xput_tfile("/mp1/tensti");
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memset(&unionargs, 0, sizeof(unionargs));
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unionargs.target = __UNCONST("/mp1");
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unionargs.mntflags = UNMNT_BELOW;
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if (rump_sys_mount(MOUNT_UNION, "/mp2", 0,
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&unionargs, sizeof(unionargs)) == -1)
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atf_tc_fail_errno("union mount");
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/* first, test we can read the old file from the new namespace */
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error = xread_tfile("/mp2/tensti");
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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("/mp2/kiekko");
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if ((error = xread_tfile("/mp1/kiekko")) != ENOENT)
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atf_tc_fail("invisibility failed: %d (%s)",
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error, strerror(error));
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/* unmount etc. yaddayadda if non-lazy */
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}
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ATF_TP_ADD_TCS(tp)
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{
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ATF_TP_ADD_TC(tp, basic);
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return 0; /*XXX?*/
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}
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