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      1 /*	$NetBSD: t_vfsops.c,v 1.12 2017/01/13 21:30:40 christos Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2010 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #include <sys/stat.h>
     30 #include <sys/statvfs.h>
     31 
     32 #include <atf-c.h>
     33 #include <dirent.h>
     34 #include <fcntl.h>
     35 #include <stdlib.h>
     36 #include <unistd.h>
     37 
     38 #include <rump/rump_syscalls.h>
     39 #include <rump/rump.h>
     40 
     41 #include "../common/h_fsmacros.h"
     42 #include "h_macros.h"
     43 
     44 static void
     45 tmount(const atf_tc_t *tc, const char *path)
     46 {
     47 
     48 	return;
     49 }
     50 
     51 static void
     52 tstatvfs(const atf_tc_t *tc, const char *path)
     53 {
     54 	const char *fstype = atf_tc_get_md_var(tc, "X-fs.mntname");
     55 	struct statvfs svb;
     56 
     57 	if (rump_sys_statvfs1(path, &svb, ST_WAIT) == -1)
     58 		atf_tc_fail_errno("statvfs");
     59 
     60 	ATF_REQUIRE(svb.f_namemax > 0 && svb.f_namemax <= MAXNAMLEN);
     61 	if (!(FSTYPE_PUFFS(tc) || FSTYPE_P2K_FFS(tc)))
     62 		ATF_REQUIRE_STREQ(svb.f_fstypename, fstype);
     63 	ATF_REQUIRE_STREQ(svb.f_mntonname, path);
     64 }
     65 
     66 static void
     67 tsync(const atf_tc_t *tc, const char *path)
     68 {
     69 
     70 	rump_sys_sync();
     71 }
     72 
     73 #define MAGICSTR "just a string, I like A"
     74 static void
     75 tfilehandle(const atf_tc_t *tc, const char *path)
     76 {
     77 	char fpath[MAXPATHLEN];
     78 	char buf[sizeof(MAGICSTR)];
     79 	size_t fhsize;
     80 	void *fhp;
     81 	int fd;
     82 
     83 	sprintf(fpath, "%s/file", path);
     84 	fd = rump_sys_open(fpath, O_RDWR | O_CREAT, 0777);
     85 	if (fd == -1)
     86 		atf_tc_fail_errno("open");
     87 
     88 	if (rump_sys_write(fd, MAGICSTR, sizeof(MAGICSTR)) != sizeof(MAGICSTR))
     89 		atf_tc_fail("write to file");
     90 	rump_sys_close(fd);
     91 
     92 	/*
     93 	 * Get file handle size.
     94 	 * This also weeds out unsupported file systems.
     95 	 */
     96 	fhsize = 0;
     97 	if (rump_sys_getfh(fpath, NULL, &fhsize) == -1) {
     98 		if (errno == EOPNOTSUPP) {
     99 			atf_tc_skip("file handles not supported");
    100 		} else if (errno != E2BIG) {
    101 			atf_tc_fail_errno("getfh size");
    102 		}
    103 	}
    104 
    105 	fhp = malloc(fhsize);
    106 	if (rump_sys_getfh(fpath, fhp, &fhsize) == -1)
    107 		atf_tc_fail_errno("getfh");
    108 
    109 	/* open file based on file handle */
    110 	fd = rump_sys_fhopen(fhp, fhsize, O_RDONLY);
    111 	if (fd == -1) {
    112 		atf_tc_fail_errno("fhopen");
    113 	}
    114 
    115 	/* check that we got the same file */
    116 	if (rump_sys_read(fd, buf, sizeof(buf)) != sizeof(MAGICSTR))
    117 		atf_tc_fail("read fhopened file");
    118 
    119 	ATF_REQUIRE_STREQ(buf, MAGICSTR);
    120 
    121 	rump_sys_close(fd);
    122 }
    123 
    124 #define FNAME "a_file"
    125 static void
    126 tfhremove(const atf_tc_t *tc, const char *path)
    127 {
    128 	size_t fhsize;
    129 	void *fhp;
    130 	int fd;
    131 
    132 	RL(rump_sys_chdir(path));
    133 	RL(fd = rump_sys_open(FNAME, O_RDWR | O_CREAT, 0777));
    134 	RL(rump_sys_close(fd));
    135 
    136 	fhsize = 0;
    137 	if (rump_sys_getfh(FNAME, NULL, &fhsize) == -1) {
    138 		if (errno == EOPNOTSUPP) {
    139 			atf_tc_skip("file handles not supported");
    140 		} else if (errno != E2BIG) {
    141 			atf_tc_fail_errno("getfh size");
    142 		}
    143 	}
    144 
    145 	fhp = malloc(fhsize);
    146 	RL(rump_sys_getfh(FNAME, fhp, &fhsize));
    147 	RL(rump_sys_unlink(FNAME));
    148 
    149 	if (FSTYPE_LFS(tc))
    150 		atf_tc_expect_fail("fhopen() for removed file succeeds "
    151 		    "(PR kern/43745)");
    152 	ATF_REQUIRE_ERRNO(ESTALE, rump_sys_fhopen(fhp, fhsize, O_RDONLY) == -1);
    153 	atf_tc_expect_pass();
    154 
    155 	RL(rump_sys_chdir("/"));
    156 }
    157 #undef FNAME
    158 
    159 /*
    160  * This test only checks the file system doesn't crash.  We *might*
    161  * try a valid file handle.
    162  */
    163 static void
    164 tfhinval(const atf_tc_t *tc, const char *path)
    165 {
    166 	size_t fhsize;
    167 	void *fhp;
    168 	unsigned long seed;
    169 	int fd;
    170 
    171 	srandom(seed = time(NULL));
    172 	printf("RNG seed %lu\n", seed);
    173 
    174 	RL(rump_sys_chdir(path));
    175 	fhsize = 0;
    176 	if (rump_sys_getfh(".", NULL, &fhsize) == -1) {
    177 		if (errno == EOPNOTSUPP) {
    178 			atf_tc_skip("file handles not supported");
    179 		} else if (errno != E2BIG) {
    180 			atf_tc_fail_errno("getfh size");
    181 		}
    182 	}
    183 
    184 	fhp = malloc(fhsize);
    185 	tests_makegarbage(fhp, fhsize);
    186 	fd = rump_sys_fhopen(fhp, fhsize, O_RDWR);
    187 	if (fd != -1)
    188 		rump_sys_close(fd);
    189 
    190 	RL(rump_sys_chdir("/"));
    191 }
    192 
    193 ATF_TC_FSAPPLY(tmount, "mount/unmount");
    194 ATF_TC_FSAPPLY(tstatvfs, "statvfs");
    195 ATF_TC_FSAPPLY(tsync, "sync");
    196 ATF_TC_FSAPPLY(tfilehandle, "file handles");
    197 ATF_TC_FSAPPLY(tfhremove, "fhtovp for removed file");
    198 ATF_TC_FSAPPLY(tfhinval, "fhopen invalid filehandle");
    199 
    200 ATF_TP_ADD_TCS(tp)
    201 {
    202 
    203 	ATF_TP_FSAPPLY(tmount);
    204 	ATF_TP_FSAPPLY(tstatvfs);
    205 	ATF_TP_FSAPPLY(tsync);
    206 	ATF_TP_FSAPPLY(tfilehandle);
    207 	ATF_TP_FSAPPLY(tfhremove);
    208 	ATF_TP_FSAPPLY(tfhinval);
    209 
    210 	return atf_no_error();
    211 }
    212