zfsboottest.c revision 225529
1210650Sdfr/*- 2210650Sdfr * Copyright (c) 2010 Doug Rabson 3210650Sdfr * All rights reserved. 4210650Sdfr * 5210650Sdfr * Redistribution and use in source and binary forms, with or without 6210650Sdfr * modification, are permitted provided that the following conditions 7210650Sdfr * are met: 8210650Sdfr * 1. Redistributions of source code must retain the above copyright 9210650Sdfr * notice, this list of conditions and the following disclaimer. 10210650Sdfr * 2. Redistributions in binary form must reproduce the above copyright 11210650Sdfr * notice, this list of conditions and the following disclaimer in the 12210650Sdfr * documentation and/or other materials provided with the distribution. 13210650Sdfr * 14210650Sdfr * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15210650Sdfr * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16210650Sdfr * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17210650Sdfr * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18210650Sdfr * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19210650Sdfr * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20210650Sdfr * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21210650Sdfr * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22210650Sdfr * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23210650Sdfr * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24210650Sdfr * SUCH DAMAGE. 25210650Sdfr */ 26210650Sdfr/* $FreeBSD: head/sys/boot/zfs/zfstest.c 225529 2011-09-13 14:01:35Z avg $ */ 27210650Sdfr/* 28210650Sdfr * Compile with 'cc -I. -I../../cddl/boot/zfs zfstest.c -o zfstest' 29210650Sdfr */ 30210650Sdfr 31210650Sdfr#include <sys/param.h> 32210650Sdfr#include <sys/queue.h> 33225529Savg#include <errno.h> 34210650Sdfr#include <fcntl.h> 35210650Sdfr#include <stdint.h> 36210650Sdfr#include <stdio.h> 37210650Sdfr#include <string.h> 38210650Sdfr#include <stdarg.h> 39210650Sdfr#include <stddef.h> 40210650Sdfr#include <stdlib.h> 41225529Savg#include <unistd.h> 42210650Sdfr 43210650Sdfr#define NBBY 8 44210650Sdfr 45210650Sdfrvoid 46210650Sdfrpager_output(const char *line) 47210650Sdfr{ 48225529Savg fprintf(stderr, "%s", line); 49210650Sdfr} 50210650Sdfr 51210650Sdfr#include "zfsimpl.c" 52210650Sdfr 53210650Sdfrstatic int 54210650Sdfrvdev_read(vdev_t *vdev, void *priv, off_t off, void *buf, size_t bytes) 55210650Sdfr{ 56210650Sdfr int fd = *(int *) priv; 57210650Sdfr 58210650Sdfr if (pread(fd, buf, bytes, off) != bytes) 59225529Savg return (-1); 60225529Savg return (0); 61210650Sdfr} 62210650Sdfr 63210650Sdfrstatic int 64210650Sdfrzfs_read(spa_t *spa, dnode_phys_t *dn, void *buf, size_t size, off_t off) 65210650Sdfr{ 66210650Sdfr const znode_phys_t *zp = (const znode_phys_t *) dn->dn_bonus; 67210650Sdfr size_t n; 68210650Sdfr int rc; 69210650Sdfr 70210650Sdfr n = size; 71210650Sdfr if (off + n > zp->zp_size) 72210650Sdfr n = zp->zp_size - off; 73225529Savg 74210650Sdfr rc = dnode_read(spa, dn, off, buf, n); 75210650Sdfr if (rc) 76225529Savg return (-rc); 77210650Sdfr 78210650Sdfr return (n); 79210650Sdfr} 80210650Sdfr 81210650Sdfrint 82210650Sdfrmain(int argc, char** argv) 83210650Sdfr{ 84225529Savg char buf[512]; 85225529Savg int fd[100]; 86225529Savg struct stat sb; 87225529Savg dnode_phys_t dn; 88225529Savg spa_t *spa; 89210650Sdfr int i, n, off; 90210650Sdfr 91210650Sdfr zfs_init(); 92210650Sdfr if (argc == 1) { 93210650Sdfr static char *av[] = { 94225529Savg "zfstest", "COPYRIGHT", 95225529Savg "/dev/da0p2", "/dev/da1p2", "/dev/da2p2", 96210650Sdfr NULL, 97210650Sdfr }; 98225529Savg argc = 5; 99210650Sdfr argv = av; 100210650Sdfr } 101225529Savg for (i = 2; i < argc; i++) { 102210650Sdfr fd[i] = open(argv[i], O_RDONLY); 103210650Sdfr if (fd[i] < 0) 104210650Sdfr continue; 105210650Sdfr if (vdev_probe(vdev_read, &fd[i], NULL) != 0) 106210650Sdfr close(fd[i]); 107210650Sdfr } 108210650Sdfr spa_all_status(); 109210650Sdfr 110210650Sdfr spa = STAILQ_FIRST(&zfs_pools); 111225529Savg if (spa == NULL) { 112225529Savg fprintf(stderr, "no pools\n"); 113210650Sdfr exit(1); 114225529Savg } 115210650Sdfr 116225529Savg if (zfs_mount_pool(spa)) { 117225529Savg fprintf(stderr, "can't mount pool\n"); 118210650Sdfr exit(1); 119225529Savg } 120210650Sdfr 121225529Savg if (zfs_lookup(spa, argv[1], &dn)) { 122225529Savg fprintf(stderr, "can't lookup\n"); 123225529Savg exit(1); 124225529Savg } 125225529Savg 126225529Savg if (zfs_dnode_stat(spa, &dn, &sb)) { 127225529Savg fprintf(stderr, "can't stat\n"); 128225529Savg exit(1); 129225529Savg } 130225529Savg 131225529Savg 132210650Sdfr off = 0; 133210650Sdfr do { 134210650Sdfr n = zfs_read(spa, &dn, buf, 512, off); 135225529Savg if (n < 0) { 136225529Savg fprintf(stderr, "zfs_read failed\n"); 137225529Savg exit(1); 138225529Savg } 139210650Sdfr write(1, buf, n); 140210650Sdfr off += n; 141225529Savg } while (off < sb.st_size); 142225529Savg 143225529Savg return (0); 144210650Sdfr} 145