| /* |
| * CDDL HEADER START |
| * |
| * The contents of this file are subject to the terms of the |
| * Common Development and Distribution License (the "License"). |
| * You may not use this file except in compliance with the License. |
| * |
| * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE |
| * or http://www.opensolaris.org/os/licensing. |
| * See the License for the specific language governing permissions |
| * and limitations under the License. |
| * |
| * When distributing Covered Code, include this CDDL HEADER in each |
| * file and include the License file at usr/src/OPENSOLARIS.LICENSE. |
| * If applicable, add the following below this CDDL HEADER, with the |
| * fields enclosed by brackets "[]" replaced with your own identifying |
| * information: Portions Copyright [yyyy] [name of copyright owner] |
| * |
| * CDDL HEADER END |
| */ |
| |
| /* |
| * Portions Copyright 2020 iXsystems, Inc. |
| */ |
| |
| /* |
| * Test some invalid send operations with libzfs/libzfs_core. |
| * |
| * Specifying the to and from snaps in the wrong order should return EXDEV. |
| * We are checking that the early return doesn't accidentally leave any |
| * references held, so this test is designed to trigger a panic when asserts |
| * are verified with the bug present. |
| */ |
| |
| #include <libzfs.h> |
| #include <libzfs_core.h> |
| |
| #include <fcntl.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <unistd.h> |
| #include <sysexits.h> |
| #include <err.h> |
| |
| static void |
| usage(const char *name) |
| { |
| fprintf(stderr, "usage: %s snap0 snap1\n", name); |
| exit(EX_USAGE); |
| } |
| |
| int |
| main(int argc, char const * const argv[]) |
| { |
| sendflags_t flags = { 0 }; |
| libzfs_handle_t *zhdl; |
| zfs_handle_t *zhp; |
| const char *fromfull, *tofull, *fsname, *fromsnap, *tosnap, *p; |
| uint64_t size; |
| int fd, error; |
| |
| if (argc != 3) |
| usage(argv[0]); |
| |
| fromfull = argv[1]; |
| tofull = argv[2]; |
| |
| p = strchr(fromfull, '@'); |
| if (p == NULL) |
| usage(argv[0]); |
| fromsnap = p + 1; |
| |
| p = strchr(tofull, '@'); |
| if (p == NULL) |
| usage(argv[0]); |
| tosnap = p + 1; |
| |
| fsname = strndup(tofull, p - tofull); |
| if (strncmp(fsname, fromfull, p - tofull) != 0) |
| usage(argv[0]); |
| |
| fd = open("/dev/null", O_WRONLY); |
| if (fd == -1) |
| err(EX_OSERR, "open(\"/dev/null\", O_WRONLY)"); |
| |
| zhdl = libzfs_init(); |
| if (zhdl == NULL) |
| errx(EX_OSERR, "libzfs_init(): %s", libzfs_error_init(errno)); |
| |
| zhp = zfs_open(zhdl, fsname, ZFS_TYPE_FILESYSTEM); |
| if (zhp == NULL) |
| err(EX_OSERR, "zfs_open(\"%s\")", fsname); |
| |
| /* |
| * Exercise EXDEV in dmu_send_obj. The error gets translated to |
| * EZFS_CROSSTARGET in libzfs. |
| */ |
| error = zfs_send(zhp, tosnap, fromsnap, &flags, fd, NULL, NULL, NULL); |
| if (error == 0 || libzfs_errno(zhdl) != EZFS_CROSSTARGET) |
| errx(EX_OSERR, "zfs_send(\"%s\", \"%s\") should have failed " |
| "with EZFS_CROSSTARGET, not %d", |
| tofull, fromfull, libzfs_errno(zhdl)); |
| printf("zfs_send(\"%s\", \"%s\"): %s\n", |
| tofull, fromfull, libzfs_error_description(zhdl)); |
| |
| zfs_close(zhp); |
| |
| /* |
| * Exercise EXDEV in dmu_send. |
| */ |
| error = lzc_send_resume_redacted(fromfull, tofull, fd, 0, 0, 0, NULL); |
| if (error != EXDEV) |
| errx(EX_OSERR, "lzc_send_resume_redacted(\"%s\", \"%s\")" |
| " should have failed with EXDEV, not %d", |
| fromfull, tofull, error); |
| printf("lzc_send_resume_redacted(\"%s\", \"%s\"): %s\n", |
| fromfull, tofull, strerror(error)); |
| |
| /* |
| * Exercise EXDEV in dmu_send_estimate_fast. |
| */ |
| error = lzc_send_space_resume_redacted(fromfull, tofull, 0, 0, 0, 0, |
| NULL, fd, &size); |
| if (error != EXDEV) |
| errx(EX_OSERR, "lzc_send_space_resume_redacted(\"%s\", \"%s\")" |
| " should have failed with EXDEV, not %d", |
| fromfull, tofull, error); |
| printf("lzc_send_space_resume_redacted(\"%s\", \"%s\"): %s\n", |
| fromfull, tofull, strerror(error)); |
| |
| close(fd); |
| libzfs_fini(zhdl); |
| free((void *)fsname); |
| |
| return (EXIT_SUCCESS); |
| } |