1libnbd-release-notes-1.6(1)         LIBNBD         libnbd-release-notes-1.6(1)
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NAME

6       libnbd-release-notes-1.6 - release notes for libnbd 1.6
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DESCRIPTION

9       These are the release notes for libnbd stable release 1.6.  This
10       describes the major changes since 1.4.
11
12       libnbd 1.6.0 was released on 7 January 2021.
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14   Security
15       There were no security issues found in this release.
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17       If you find a security issue, please read SECURITY in the source
18       (online here: https://gitlab.com/nbdkit/libnbd/blob/master/SECURITY).
19       To find out about previous security issues in libnbd, see
20       libnbd-security(3).
21
22   New APIs
23       nbd_set_strict_mode(3)
24       nbd_get_strict_mode(3)
25           This API allows you to control how libnbd handles requests from the
26           program that it thinks would trigger undefined behaviour in the
27           server (such as sending unknown commands, zero-sized or out-of-
28           bounds requests, etc).  Normally libnbd is very strict and will
29           prevent you from sending such requests, but you can use this API to
30           relax these restrictions, leaving it up to the server to handle or
31           reject them.  Some servers may crash if you do this.
32
33       nbd_get_nr_meta_contexts(3)
34       nbd_get_meta_context(3)
35       nbd_clear_meta_contexts(3)
36           These APIs allow you to review or clear the requested metadata
37           contexts.
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39       nbd_opt_list_meta_context(3)
40       nbd_aio_opt_list_meta_context(3)
41           Request that the server lists available metadata contexts.  You can
42           only use this in opt mode.
43
44       Thanks: Eric Blake for all of the new APIs.
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46   Enhancements to existing APIs
47       nbd_shutdown(3) new flag "LIBNBD_SHUTDOWN_ABANDON_PENDING" drops any
48       commands in flight which have not been sent to the server yet (Eric
49       Blake).
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51       All APIs which have flag (bitmask) parameters now define a
52       "LIBNBD_*_MASK" constant allowing you to tell which bits represent
53       valid flags at compilation time (Eric Blake).
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55   New features
56       The performance of the nbdcopy(1) tool has been greatly improved.  Also
57       it supports numerous new features.
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59       New nbdinfo(1) --map option showing the allocated and sparse extents of
60       an NBD server.  This can also show other information such as dirty
61       bitmaps.
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63   Tools
64       nbdfuse(1) can now mount the NBD export on top of any regular file, it
65       does not have to mount over a directory.
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67       nbdsh(1) now produces a nice error message if the URI in the -u option
68       or the command in the -c option is wrong (Eric Blake).
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70       New nbdsh(1) --opt-mode option which requests opt mode on the handle
71       before connecting.
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73       nbdinfo(1) --list option now shows the supported metadata contexts of
74       the server (Eric Blake).
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76       The output of nbdinfo(1) is now usually printed atomically, ie. it will
77       either print the complete output or an error message, but not partial
78       output followed by an error.
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80       nbdinfo(1) can now decode "qemu:allocation-depth" metacontext (Eric
81       Blake).
82
83   Other improvements and bug fixes
84       Multiple improvements to handling of NBD protocol (Eric Blake).
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86       Fix handling of booleans in Python bindings (Eric Blake).
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88       Fix handling of flags parameters in OCaml bindings (Eric Blake).
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90       Python style fixes (Eric Blake).
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92       Fix multiple memory leaks (Eric Blake).
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94       OCaml bindings now include ocamldoc-generated documentation, if
95       ocamldoc is installed at build time.
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97       The "vector" library from nbdkit is now used by libnbd, simplifying
98       places where we used to use realloc(3).
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SEE ALSO

101       libnbd(3).
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AUTHORS

104       Eric Blake
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106       Richard W.M. Jones
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109       Copyright (C) 2020-2021 Red Hat Inc.
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LICENSE

112       This library is free software; you can redistribute it and/or modify it
113       under the terms of the GNU Lesser General Public License as published
114       by the Free Software Foundation; either version 2 of the License, or
115       (at your option) any later version.
116
117       This library is distributed in the hope that it will be useful, but
118       WITHOUT ANY WARRANTY; without even the implied warranty of
119       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
120       Lesser General Public License for more details.
121
122       You should have received a copy of the GNU Lesser General Public
123       License along with this library; if not, write to the Free Software
124       Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
125       02110-1301 USA
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129libnbd-1.7.12                     2021-05-29       libnbd-release-notes-1.6(1)
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