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Tom Caputi 61152d1069 Fix errata #4 handling for resuming streams 
Currently, the handling for errata #4 has two issues which allow
the checks for this issue to be bypassed using resumable sends.
The first issue is that drc->drc_fromsnapobj is not set in the
resuming code as it is in the non-resuming code. This causes
dsl_crypto_recv_key_check() to skip its checks for the
from_ivset_guid. The second issue is that resumable sends do not
clean up their on-disk state if they fail the checks in
dmu_recv_stream() that happen before any data is received.

As a result of these two bugs, a user can attempt a resumable send
of a dataset without a from_ivset_guid. This will fail the initial
dmu_recv_stream() checks, leaving a valid resume state. The send
can then be resumed, which skips those checks, allowing the receive
to be completed.

This commit fixes these issues by setting drc->drc_fromsnapobj in
the resuming receive path and by ensuring that resumablereceives
are properly cleaned up if they fail the initial dmu_recv_stream()
checks.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tom Caputi <tcaputi@datto.com>
Closes #9818 
Closes #9829
2020-01-14 12:25:20 -08:00
.github Improve Pull Request guidelines 2019-12-30 09:24:41 -08:00
cmd Change http://zfsonlinux.org links to https://zfsonlinux.org 2020-01-13 16:43:59 -08:00
config Moves Codecov Ignore to LCOV 2019-12-17 17:47:58 -08:00
contrib zfs-load-key.sh: ${ZFS} is not the zfs binary 2019-12-29 11:25:00 -08:00
etc Avoid here-documents in systemd mount generator 2020-01-07 17:03:00 -08:00
include Fix errata #4 handling for resuming streams 2020-01-14 12:25:20 -08:00
lib libzfs: add zfs_mount_at() function 2020-01-14 08:49:54 -08:00
man Document zfs change-key caveats 2020-01-14 10:11:07 -08:00
module Fix errata #4 handling for resuming streams 2020-01-14 12:25:20 -08:00
rpm Change http://zfsonlinux.org links to https://zfsonlinux.org 2020-01-13 16:43:59 -08:00
scripts Add FreeBSD core handling in zloop.sh 2020-01-02 13:48:06 -08:00
tests ZTS: Remove obsolete zts-report.py exceptions 2020-01-13 16:42:23 -08:00
udev Create symbolic links in /dev/disk/by-vdev for nvme disk devices 2019-12-17 17:50:20 -08:00
.gitignore Adapt gitignore for modules 2019-12-02 13:23:47 -08:00
.gitmodules Add zimport.sh compatibility test script 2014-02-21 12:10:31 -08:00
.travis.yml Add .travis.yml 2017-11-13 09:18:18 -08:00
AUTHORS Update build system and packaging 2018-05-29 16:00:33 -07:00
autogen.sh Cause autogen.sh to fail if autoreconf fails 2018-07-06 09:27:37 -07:00
CODE_OF_CONDUCT.md Add CODE_OF_CONDUCT.md 2019-04-30 10:58:45 -07:00
configure.ac Tests for btree implementation used by range trees 2019-12-19 11:53:54 -08:00
copy-builtin Change http://zfsonlinux.org links to https://zfsonlinux.org 2020-01-13 16:43:59 -08:00
COPYRIGHT OpenZFS restructuring - move platform specific sources 2019-09-06 11:26:26 -07:00
LICENSE Update build system and packaging 2018-05-29 16:00:33 -07:00
Makefile.am Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
META Update maximum kernel version to 5.4 2019-12-23 14:24:36 -08:00
NEWS Add NEWS file 2018-09-18 12:03:47 -07:00
NOTICE Update build system and packaging 2018-05-29 16:00:33 -07:00
README.md Change http://zfsonlinux.org links to https://zfsonlinux.org 2020-01-13 16:43:59 -08:00
TEST Update build system and packaging 2018-05-29 16:00:33 -07:00
zfs.release.in Move zfs.release generation to configure step 2012-07-12 12:22:51 -07:00

README.md

img

ZFS on Linux is an advanced file system and volume manager which was originally developed for Solaris and is now maintained by the OpenZFS community.

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Official Resources

Installation

Full documentation for installing ZoL on your favorite Linux distribution can be found at our site.

Contribute & Develop

We have a separate document with contribution guidelines.

Release

ZFS on Linux is released under a CDDL license.
For more details see the NOTICE, LICENSE and COPYRIGHT files; UCRL-CODE-235197

Supported Kernels

  • The META file contains the officially recognized supported kernel versions.