141 lines
3.7 KiB
C
141 lines
3.7 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or https://opensource.org/licenses/CDDL-1.0.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Portions Copyright 2020 iXsystems, Inc.
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*/
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/*
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* Test some invalid send operations with libzfs/libzfs_core.
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*
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* Specifying the to and from snaps in the wrong order should return EXDEV.
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* We are checking that the early return doesn't accidentally leave any
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* references held, so this test is designed to trigger a panic when asserts
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* are verified with the bug present.
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*/
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#include <libzfs.h>
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#include <libzfs_core.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sysexits.h>
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#include <err.h>
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static void
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usage(const char *name)
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{
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fprintf(stderr, "usage: %s snap0 snap1\n", name);
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exit(EX_USAGE);
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}
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int
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main(int argc, char const * const argv[])
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{
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sendflags_t flags = { 0 };
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libzfs_handle_t *zhdl;
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zfs_handle_t *zhp;
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const char *fromfull, *tofull, *fsname, *fromsnap, *tosnap, *p;
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uint64_t size;
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int fd, error;
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if (argc != 3)
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usage(argv[0]);
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fromfull = argv[1];
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tofull = argv[2];
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p = strchr(fromfull, '@');
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if (p == NULL)
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usage(argv[0]);
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fromsnap = p + 1;
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p = strchr(tofull, '@');
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if (p == NULL)
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usage(argv[0]);
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tosnap = p + 1;
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fsname = strndup(tofull, p - tofull);
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if (fsname == NULL) {
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perror("strndup");
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exit(EXIT_FAILURE);
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}
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if (strncmp(fsname, fromfull, p - tofull) != 0)
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usage(argv[0]);
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fd = open("/dev/null", O_WRONLY);
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if (fd == -1)
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err(EX_OSERR, "open(\"/dev/null\", O_WRONLY)");
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zhdl = libzfs_init();
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if (zhdl == NULL)
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errx(EX_OSERR, "libzfs_init(): %s", libzfs_error_init(errno));
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zhp = zfs_open(zhdl, fsname, ZFS_TYPE_FILESYSTEM);
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if (zhp == NULL)
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err(EX_OSERR, "zfs_open(\"%s\")", fsname);
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/*
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* Exercise EXDEV in dmu_send_obj. The error gets translated to
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* EZFS_CROSSTARGET in libzfs.
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*/
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error = zfs_send(zhp, tosnap, fromsnap, &flags, fd, NULL, NULL, NULL);
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if (error == 0 || libzfs_errno(zhdl) != EZFS_CROSSTARGET)
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errx(EX_OSERR, "zfs_send(\"%s\", \"%s\") should have failed "
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"with EZFS_CROSSTARGET, not %d",
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tofull, fromfull, libzfs_errno(zhdl));
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printf("zfs_send(\"%s\", \"%s\"): %s\n",
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tofull, fromfull, libzfs_error_description(zhdl));
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zfs_close(zhp);
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/*
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* Exercise EXDEV in dmu_send.
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*/
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error = lzc_send_resume_redacted(fromfull, tofull, fd, 0, 0, 0, NULL);
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if (error != EXDEV)
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errx(EX_OSERR, "lzc_send_resume_redacted(\"%s\", \"%s\")"
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" should have failed with EXDEV, not %d",
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fromfull, tofull, error);
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printf("lzc_send_resume_redacted(\"%s\", \"%s\"): %s\n",
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fromfull, tofull, strerror(error));
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/*
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* Exercise EXDEV in dmu_send_estimate_fast.
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*/
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error = lzc_send_space_resume_redacted(fromfull, tofull, 0, 0, 0, 0,
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NULL, fd, &size);
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if (error != EXDEV)
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errx(EX_OSERR, "lzc_send_space_resume_redacted(\"%s\", \"%s\")"
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" should have failed with EXDEV, not %d",
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fromfull, tofull, error);
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printf("lzc_send_space_resume_redacted(\"%s\", \"%s\"): %s\n",
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fromfull, tofull, strerror(error));
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close(fd);
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libzfs_fini(zhdl);
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free((void *)fsname);
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return (EXIT_SUCCESS);
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}
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