Compare commits
No commits in common. "guimaster" and "v0.0.1" have entirely different histories.
|
|
@ -1,10 +1 @@
|
||||||
*.swp
|
|
||||||
go.sum
|
|
||||||
go.mod
|
|
||||||
|
|
||||||
control-panel-dns
|
|
||||||
/files/*
|
|
||||||
/*.deb
|
|
||||||
/plugins/*
|
|
||||||
|
|
||||||
control-panel-dns
|
control-panel-dns
|
||||||
|
|
|
||||||
674
LICENSE
674
LICENSE
|
|
@ -1,674 +0,0 @@
|
||||||
GNU GENERAL PUBLIC LICENSE
|
|
||||||
Version 3, 29 June 2007
|
|
||||||
|
|
||||||
Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
|
|
||||||
Everyone is permitted to copy and distribute verbatim copies
|
|
||||||
of this license document, but changing it is not allowed.
|
|
||||||
|
|
||||||
Preamble
|
|
||||||
|
|
||||||
The GNU General Public License is a free, copyleft license for
|
|
||||||
software and other kinds of works.
|
|
||||||
|
|
||||||
The licenses for most software and other practical works are designed
|
|
||||||
to take away your freedom to share and change the works. By contrast,
|
|
||||||
the GNU General Public License is intended to guarantee your freedom to
|
|
||||||
share and change all versions of a program--to make sure it remains free
|
|
||||||
software for all its users. We, the Free Software Foundation, use the
|
|
||||||
GNU General Public License for most of our software; it applies also to
|
|
||||||
any other work released this way by its authors. You can apply it to
|
|
||||||
your programs, too.
|
|
||||||
|
|
||||||
When we speak of free software, we are referring to freedom, not
|
|
||||||
price. Our General Public Licenses are designed to make sure that you
|
|
||||||
have the freedom to distribute copies of free software (and charge for
|
|
||||||
them if you wish), that you receive source code or can get it if you
|
|
||||||
want it, that you can change the software or use pieces of it in new
|
|
||||||
free programs, and that you know you can do these things.
|
|
||||||
|
|
||||||
To protect your rights, we need to prevent others from denying you
|
|
||||||
these rights or asking you to surrender the rights. Therefore, you have
|
|
||||||
certain responsibilities if you distribute copies of the software, or if
|
|
||||||
you modify it: responsibilities to respect the freedom of others.
|
|
||||||
|
|
||||||
For example, if you distribute copies of such a program, whether
|
|
||||||
gratis or for a fee, you must pass on to the recipients the same
|
|
||||||
freedoms that you received. You must make sure that they, too, receive
|
|
||||||
or can get the source code. And you must show them these terms so they
|
|
||||||
know their rights.
|
|
||||||
|
|
||||||
Developers that use the GNU GPL protect your rights with two steps:
|
|
||||||
(1) assert copyright on the software, and (2) offer you this License
|
|
||||||
giving you legal permission to copy, distribute and/or modify it.
|
|
||||||
|
|
||||||
For the developers' and authors' protection, the GPL clearly explains
|
|
||||||
that there is no warranty for this free software. For both users' and
|
|
||||||
authors' sake, the GPL requires that modified versions be marked as
|
|
||||||
changed, so that their problems will not be attributed erroneously to
|
|
||||||
authors of previous versions.
|
|
||||||
|
|
||||||
Some devices are designed to deny users access to install or run
|
|
||||||
modified versions of the software inside them, although the manufacturer
|
|
||||||
can do so. This is fundamentally incompatible with the aim of
|
|
||||||
protecting users' freedom to change the software. The systematic
|
|
||||||
pattern of such abuse occurs in the area of products for individuals to
|
|
||||||
use, which is precisely where it is most unacceptable. Therefore, we
|
|
||||||
have designed this version of the GPL to prohibit the practice for those
|
|
||||||
products. If such problems arise substantially in other domains, we
|
|
||||||
stand ready to extend this provision to those domains in future versions
|
|
||||||
of the GPL, as needed to protect the freedom of users.
|
|
||||||
|
|
||||||
Finally, every program is threatened constantly by software patents.
|
|
||||||
States should not allow patents to restrict development and use of
|
|
||||||
software on general-purpose computers, but in those that do, we wish to
|
|
||||||
avoid the special danger that patents applied to a free program could
|
|
||||||
make it effectively proprietary. To prevent this, the GPL assures that
|
|
||||||
patents cannot be used to render the program non-free.
|
|
||||||
|
|
||||||
The precise terms and conditions for copying, distribution and
|
|
||||||
modification follow.
|
|
||||||
|
|
||||||
TERMS AND CONDITIONS
|
|
||||||
|
|
||||||
0. Definitions.
|
|
||||||
|
|
||||||
"This License" refers to version 3 of the GNU General Public License.
|
|
||||||
|
|
||||||
"Copyright" also means copyright-like laws that apply to other kinds of
|
|
||||||
works, such as semiconductor masks.
|
|
||||||
|
|
||||||
"The Program" refers to any copyrightable work licensed under this
|
|
||||||
License. Each licensee is addressed as "you". "Licensees" and
|
|
||||||
"recipients" may be individuals or organizations.
|
|
||||||
|
|
||||||
To "modify" a work means to copy from or adapt all or part of the work
|
|
||||||
in a fashion requiring copyright permission, other than the making of an
|
|
||||||
exact copy. The resulting work is called a "modified version" of the
|
|
||||||
earlier work or a work "based on" the earlier work.
|
|
||||||
|
|
||||||
A "covered work" means either the unmodified Program or a work based
|
|
||||||
on the Program.
|
|
||||||
|
|
||||||
To "propagate" a work means to do anything with it that, without
|
|
||||||
permission, would make you directly or secondarily liable for
|
|
||||||
infringement under applicable copyright law, except executing it on a
|
|
||||||
computer or modifying a private copy. Propagation includes copying,
|
|
||||||
distribution (with or without modification), making available to the
|
|
||||||
public, and in some countries other activities as well.
|
|
||||||
|
|
||||||
To "convey" a work means any kind of propagation that enables other
|
|
||||||
parties to make or receive copies. Mere interaction with a user through
|
|
||||||
a computer network, with no transfer of a copy, is not conveying.
|
|
||||||
|
|
||||||
An interactive user interface displays "Appropriate Legal Notices"
|
|
||||||
to the extent that it includes a convenient and prominently visible
|
|
||||||
feature that (1) displays an appropriate copyright notice, and (2)
|
|
||||||
tells the user that there is no warranty for the work (except to the
|
|
||||||
extent that warranties are provided), that licensees may convey the
|
|
||||||
work under this License, and how to view a copy of this License. If
|
|
||||||
the interface presents a list of user commands or options, such as a
|
|
||||||
menu, a prominent item in the list meets this criterion.
|
|
||||||
|
|
||||||
1. Source Code.
|
|
||||||
|
|
||||||
The "source code" for a work means the preferred form of the work
|
|
||||||
for making modifications to it. "Object code" means any non-source
|
|
||||||
form of a work.
|
|
||||||
|
|
||||||
A "Standard Interface" means an interface that either is an official
|
|
||||||
standard defined by a recognized standards body, or, in the case of
|
|
||||||
interfaces specified for a particular programming language, one that
|
|
||||||
is widely used among developers working in that language.
|
|
||||||
|
|
||||||
The "System Libraries" of an executable work include anything, other
|
|
||||||
than the work as a whole, that (a) is included in the normal form of
|
|
||||||
packaging a Major Component, but which is not part of that Major
|
|
||||||
Component, and (b) serves only to enable use of the work with that
|
|
||||||
Major Component, or to implement a Standard Interface for which an
|
|
||||||
implementation is available to the public in source code form. A
|
|
||||||
"Major Component", in this context, means a major essential component
|
|
||||||
(kernel, window system, and so on) of the specific operating system
|
|
||||||
(if any) on which the executable work runs, or a compiler used to
|
|
||||||
produce the work, or an object code interpreter used to run it.
|
|
||||||
|
|
||||||
The "Corresponding Source" for a work in object code form means all
|
|
||||||
the source code needed to generate, install, and (for an executable
|
|
||||||
work) run the object code and to modify the work, including scripts to
|
|
||||||
control those activities. However, it does not include the work's
|
|
||||||
System Libraries, or general-purpose tools or generally available free
|
|
||||||
programs which are used unmodified in performing those activities but
|
|
||||||
which are not part of the work. For example, Corresponding Source
|
|
||||||
includes interface definition files associated with source files for
|
|
||||||
the work, and the source code for shared libraries and dynamically
|
|
||||||
linked subprograms that the work is specifically designed to require,
|
|
||||||
such as by intimate data communication or control flow between those
|
|
||||||
subprograms and other parts of the work.
|
|
||||||
|
|
||||||
The Corresponding Source need not include anything that users
|
|
||||||
can regenerate automatically from other parts of the Corresponding
|
|
||||||
Source.
|
|
||||||
|
|
||||||
The Corresponding Source for a work in source code form is that
|
|
||||||
same work.
|
|
||||||
|
|
||||||
2. Basic Permissions.
|
|
||||||
|
|
||||||
All rights granted under this License are granted for the term of
|
|
||||||
copyright on the Program, and are irrevocable provided the stated
|
|
||||||
conditions are met. This License explicitly affirms your unlimited
|
|
||||||
permission to run the unmodified Program. The output from running a
|
|
||||||
covered work is covered by this License only if the output, given its
|
|
||||||
content, constitutes a covered work. This License acknowledges your
|
|
||||||
rights of fair use or other equivalent, as provided by copyright law.
|
|
||||||
|
|
||||||
You may make, run and propagate covered works that you do not
|
|
||||||
convey, without conditions so long as your license otherwise remains
|
|
||||||
in force. You may convey covered works to others for the sole purpose
|
|
||||||
of having them make modifications exclusively for you, or provide you
|
|
||||||
with facilities for running those works, provided that you comply with
|
|
||||||
the terms of this License in conveying all material for which you do
|
|
||||||
not control copyright. Those thus making or running the covered works
|
|
||||||
for you must do so exclusively on your behalf, under your direction
|
|
||||||
and control, on terms that prohibit them from making any copies of
|
|
||||||
your copyrighted material outside their relationship with you.
|
|
||||||
|
|
||||||
Conveying under any other circumstances is permitted solely under
|
|
||||||
the conditions stated below. Sublicensing is not allowed; section 10
|
|
||||||
makes it unnecessary.
|
|
||||||
|
|
||||||
3. Protecting Users' Legal Rights From Anti-Circumvention Law.
|
|
||||||
|
|
||||||
No covered work shall be deemed part of an effective technological
|
|
||||||
measure under any applicable law fulfilling obligations under article
|
|
||||||
11 of the WIPO copyright treaty adopted on 20 December 1996, or
|
|
||||||
similar laws prohibiting or restricting circumvention of such
|
|
||||||
measures.
|
|
||||||
|
|
||||||
When you convey a covered work, you waive any legal power to forbid
|
|
||||||
circumvention of technological measures to the extent such circumvention
|
|
||||||
is effected by exercising rights under this License with respect to
|
|
||||||
the covered work, and you disclaim any intention to limit operation or
|
|
||||||
modification of the work as a means of enforcing, against the work's
|
|
||||||
users, your or third parties' legal rights to forbid circumvention of
|
|
||||||
technological measures.
|
|
||||||
|
|
||||||
4. Conveying Verbatim Copies.
|
|
||||||
|
|
||||||
You may convey verbatim copies of the Program's source code as you
|
|
||||||
receive it, in any medium, provided that you conspicuously and
|
|
||||||
appropriately publish on each copy an appropriate copyright notice;
|
|
||||||
keep intact all notices stating that this License and any
|
|
||||||
non-permissive terms added in accord with section 7 apply to the code;
|
|
||||||
keep intact all notices of the absence of any warranty; and give all
|
|
||||||
recipients a copy of this License along with the Program.
|
|
||||||
|
|
||||||
You may charge any price or no price for each copy that you convey,
|
|
||||||
and you may offer support or warranty protection for a fee.
|
|
||||||
|
|
||||||
5. Conveying Modified Source Versions.
|
|
||||||
|
|
||||||
You may convey a work based on the Program, or the modifications to
|
|
||||||
produce it from the Program, in the form of source code under the
|
|
||||||
terms of section 4, provided that you also meet all of these conditions:
|
|
||||||
|
|
||||||
a) The work must carry prominent notices stating that you modified
|
|
||||||
it, and giving a relevant date.
|
|
||||||
|
|
||||||
b) The work must carry prominent notices stating that it is
|
|
||||||
released under this License and any conditions added under section
|
|
||||||
7. This requirement modifies the requirement in section 4 to
|
|
||||||
"keep intact all notices".
|
|
||||||
|
|
||||||
c) You must license the entire work, as a whole, under this
|
|
||||||
License to anyone who comes into possession of a copy. This
|
|
||||||
License will therefore apply, along with any applicable section 7
|
|
||||||
additional terms, to the whole of the work, and all its parts,
|
|
||||||
regardless of how they are packaged. This License gives no
|
|
||||||
permission to license the work in any other way, but it does not
|
|
||||||
invalidate such permission if you have separately received it.
|
|
||||||
|
|
||||||
d) If the work has interactive user interfaces, each must display
|
|
||||||
Appropriate Legal Notices; however, if the Program has interactive
|
|
||||||
interfaces that do not display Appropriate Legal Notices, your
|
|
||||||
work need not make them do so.
|
|
||||||
|
|
||||||
A compilation of a covered work with other separate and independent
|
|
||||||
works, which are not by their nature extensions of the covered work,
|
|
||||||
and which are not combined with it such as to form a larger program,
|
|
||||||
in or on a volume of a storage or distribution medium, is called an
|
|
||||||
"aggregate" if the compilation and its resulting copyright are not
|
|
||||||
used to limit the access or legal rights of the compilation's users
|
|
||||||
beyond what the individual works permit. Inclusion of a covered work
|
|
||||||
in an aggregate does not cause this License to apply to the other
|
|
||||||
parts of the aggregate.
|
|
||||||
|
|
||||||
6. Conveying Non-Source Forms.
|
|
||||||
|
|
||||||
You may convey a covered work in object code form under the terms
|
|
||||||
of sections 4 and 5, provided that you also convey the
|
|
||||||
machine-readable Corresponding Source under the terms of this License,
|
|
||||||
in one of these ways:
|
|
||||||
|
|
||||||
a) Convey the object code in, or embodied in, a physical product
|
|
||||||
(including a physical distribution medium), accompanied by the
|
|
||||||
Corresponding Source fixed on a durable physical medium
|
|
||||||
customarily used for software interchange.
|
|
||||||
|
|
||||||
b) Convey the object code in, or embodied in, a physical product
|
|
||||||
(including a physical distribution medium), accompanied by a
|
|
||||||
written offer, valid for at least three years and valid for as
|
|
||||||
long as you offer spare parts or customer support for that product
|
|
||||||
model, to give anyone who possesses the object code either (1) a
|
|
||||||
copy of the Corresponding Source for all the software in the
|
|
||||||
product that is covered by this License, on a durable physical
|
|
||||||
medium customarily used for software interchange, for a price no
|
|
||||||
more than your reasonable cost of physically performing this
|
|
||||||
conveying of source, or (2) access to copy the
|
|
||||||
Corresponding Source from a network server at no charge.
|
|
||||||
|
|
||||||
c) Convey individual copies of the object code with a copy of the
|
|
||||||
written offer to provide the Corresponding Source. This
|
|
||||||
alternative is allowed only occasionally and noncommercially, and
|
|
||||||
only if you received the object code with such an offer, in accord
|
|
||||||
with subsection 6b.
|
|
||||||
|
|
||||||
d) Convey the object code by offering access from a designated
|
|
||||||
place (gratis or for a charge), and offer equivalent access to the
|
|
||||||
Corresponding Source in the same way through the same place at no
|
|
||||||
further charge. You need not require recipients to copy the
|
|
||||||
Corresponding Source along with the object code. If the place to
|
|
||||||
copy the object code is a network server, the Corresponding Source
|
|
||||||
may be on a different server (operated by you or a third party)
|
|
||||||
that supports equivalent copying facilities, provided you maintain
|
|
||||||
clear directions next to the object code saying where to find the
|
|
||||||
Corresponding Source. Regardless of what server hosts the
|
|
||||||
Corresponding Source, you remain obligated to ensure that it is
|
|
||||||
available for as long as needed to satisfy these requirements.
|
|
||||||
|
|
||||||
e) Convey the object code using peer-to-peer transmission, provided
|
|
||||||
you inform other peers where the object code and Corresponding
|
|
||||||
Source of the work are being offered to the general public at no
|
|
||||||
charge under subsection 6d.
|
|
||||||
|
|
||||||
A separable portion of the object code, whose source code is excluded
|
|
||||||
from the Corresponding Source as a System Library, need not be
|
|
||||||
included in conveying the object code work.
|
|
||||||
|
|
||||||
A "User Product" is either (1) a "consumer product", which means any
|
|
||||||
tangible personal property which is normally used for personal, family,
|
|
||||||
or household purposes, or (2) anything designed or sold for incorporation
|
|
||||||
into a dwelling. In determining whether a product is a consumer product,
|
|
||||||
doubtful cases shall be resolved in favor of coverage. For a particular
|
|
||||||
product received by a particular user, "normally used" refers to a
|
|
||||||
typical or common use of that class of product, regardless of the status
|
|
||||||
of the particular user or of the way in which the particular user
|
|
||||||
actually uses, or expects or is expected to use, the product. A product
|
|
||||||
is a consumer product regardless of whether the product has substantial
|
|
||||||
commercial, industrial or non-consumer uses, unless such uses represent
|
|
||||||
the only significant mode of use of the product.
|
|
||||||
|
|
||||||
"Installation Information" for a User Product means any methods,
|
|
||||||
procedures, authorization keys, or other information required to install
|
|
||||||
and execute modified versions of a covered work in that User Product from
|
|
||||||
a modified version of its Corresponding Source. The information must
|
|
||||||
suffice to ensure that the continued functioning of the modified object
|
|
||||||
code is in no case prevented or interfered with solely because
|
|
||||||
modification has been made.
|
|
||||||
|
|
||||||
If you convey an object code work under this section in, or with, or
|
|
||||||
specifically for use in, a User Product, and the conveying occurs as
|
|
||||||
part of a transaction in which the right of possession and use of the
|
|
||||||
User Product is transferred to the recipient in perpetuity or for a
|
|
||||||
fixed term (regardless of how the transaction is characterized), the
|
|
||||||
Corresponding Source conveyed under this section must be accompanied
|
|
||||||
by the Installation Information. But this requirement does not apply
|
|
||||||
if neither you nor any third party retains the ability to install
|
|
||||||
modified object code on the User Product (for example, the work has
|
|
||||||
been installed in ROM).
|
|
||||||
|
|
||||||
The requirement to provide Installation Information does not include a
|
|
||||||
requirement to continue to provide support service, warranty, or updates
|
|
||||||
for a work that has been modified or installed by the recipient, or for
|
|
||||||
the User Product in which it has been modified or installed. Access to a
|
|
||||||
network may be denied when the modification itself materially and
|
|
||||||
adversely affects the operation of the network or violates the rules and
|
|
||||||
protocols for communication across the network.
|
|
||||||
|
|
||||||
Corresponding Source conveyed, and Installation Information provided,
|
|
||||||
in accord with this section must be in a format that is publicly
|
|
||||||
documented (and with an implementation available to the public in
|
|
||||||
source code form), and must require no special password or key for
|
|
||||||
unpacking, reading or copying.
|
|
||||||
|
|
||||||
7. Additional Terms.
|
|
||||||
|
|
||||||
"Additional permissions" are terms that supplement the terms of this
|
|
||||||
License by making exceptions from one or more of its conditions.
|
|
||||||
Additional permissions that are applicable to the entire Program shall
|
|
||||||
be treated as though they were included in this License, to the extent
|
|
||||||
that they are valid under applicable law. If additional permissions
|
|
||||||
apply only to part of the Program, that part may be used separately
|
|
||||||
under those permissions, but the entire Program remains governed by
|
|
||||||
this License without regard to the additional permissions.
|
|
||||||
|
|
||||||
When you convey a copy of a covered work, you may at your option
|
|
||||||
remove any additional permissions from that copy, or from any part of
|
|
||||||
it. (Additional permissions may be written to require their own
|
|
||||||
removal in certain cases when you modify the work.) You may place
|
|
||||||
additional permissions on material, added by you to a covered work,
|
|
||||||
for which you have or can give appropriate copyright permission.
|
|
||||||
|
|
||||||
Notwithstanding any other provision of this License, for material you
|
|
||||||
add to a covered work, you may (if authorized by the copyright holders of
|
|
||||||
that material) supplement the terms of this License with terms:
|
|
||||||
|
|
||||||
a) Disclaiming warranty or limiting liability differently from the
|
|
||||||
terms of sections 15 and 16 of this License; or
|
|
||||||
|
|
||||||
b) Requiring preservation of specified reasonable legal notices or
|
|
||||||
author attributions in that material or in the Appropriate Legal
|
|
||||||
Notices displayed by works containing it; or
|
|
||||||
|
|
||||||
c) Prohibiting misrepresentation of the origin of that material, or
|
|
||||||
requiring that modified versions of such material be marked in
|
|
||||||
reasonable ways as different from the original version; or
|
|
||||||
|
|
||||||
d) Limiting the use for publicity purposes of names of licensors or
|
|
||||||
authors of the material; or
|
|
||||||
|
|
||||||
e) Declining to grant rights under trademark law for use of some
|
|
||||||
trade names, trademarks, or service marks; or
|
|
||||||
|
|
||||||
f) Requiring indemnification of licensors and authors of that
|
|
||||||
material by anyone who conveys the material (or modified versions of
|
|
||||||
it) with contractual assumptions of liability to the recipient, for
|
|
||||||
any liability that these contractual assumptions directly impose on
|
|
||||||
those licensors and authors.
|
|
||||||
|
|
||||||
All other non-permissive additional terms are considered "further
|
|
||||||
restrictions" within the meaning of section 10. If the Program as you
|
|
||||||
received it, or any part of it, contains a notice stating that it is
|
|
||||||
governed by this License along with a term that is a further
|
|
||||||
restriction, you may remove that term. If a license document contains
|
|
||||||
a further restriction but permits relicensing or conveying under this
|
|
||||||
License, you may add to a covered work material governed by the terms
|
|
||||||
of that license document, provided that the further restriction does
|
|
||||||
not survive such relicensing or conveying.
|
|
||||||
|
|
||||||
If you add terms to a covered work in accord with this section, you
|
|
||||||
must place, in the relevant source files, a statement of the
|
|
||||||
additional terms that apply to those files, or a notice indicating
|
|
||||||
where to find the applicable terms.
|
|
||||||
|
|
||||||
Additional terms, permissive or non-permissive, may be stated in the
|
|
||||||
form of a separately written license, or stated as exceptions;
|
|
||||||
the above requirements apply either way.
|
|
||||||
|
|
||||||
8. Termination.
|
|
||||||
|
|
||||||
You may not propagate or modify a covered work except as expressly
|
|
||||||
provided under this License. Any attempt otherwise to propagate or
|
|
||||||
modify it is void, and will automatically terminate your rights under
|
|
||||||
this License (including any patent licenses granted under the third
|
|
||||||
paragraph of section 11).
|
|
||||||
|
|
||||||
However, if you cease all violation of this License, then your
|
|
||||||
license from a particular copyright holder is reinstated (a)
|
|
||||||
provisionally, unless and until the copyright holder explicitly and
|
|
||||||
finally terminates your license, and (b) permanently, if the copyright
|
|
||||||
holder fails to notify you of the violation by some reasonable means
|
|
||||||
prior to 60 days after the cessation.
|
|
||||||
|
|
||||||
Moreover, your license from a particular copyright holder is
|
|
||||||
reinstated permanently if the copyright holder notifies you of the
|
|
||||||
violation by some reasonable means, this is the first time you have
|
|
||||||
received notice of violation of this License (for any work) from that
|
|
||||||
copyright holder, and you cure the violation prior to 30 days after
|
|
||||||
your receipt of the notice.
|
|
||||||
|
|
||||||
Termination of your rights under this section does not terminate the
|
|
||||||
licenses of parties who have received copies or rights from you under
|
|
||||||
this License. If your rights have been terminated and not permanently
|
|
||||||
reinstated, you do not qualify to receive new licenses for the same
|
|
||||||
material under section 10.
|
|
||||||
|
|
||||||
9. Acceptance Not Required for Having Copies.
|
|
||||||
|
|
||||||
You are not required to accept this License in order to receive or
|
|
||||||
run a copy of the Program. Ancillary propagation of a covered work
|
|
||||||
occurring solely as a consequence of using peer-to-peer transmission
|
|
||||||
to receive a copy likewise does not require acceptance. However,
|
|
||||||
nothing other than this License grants you permission to propagate or
|
|
||||||
modify any covered work. These actions infringe copyright if you do
|
|
||||||
not accept this License. Therefore, by modifying or propagating a
|
|
||||||
covered work, you indicate your acceptance of this License to do so.
|
|
||||||
|
|
||||||
10. Automatic Licensing of Downstream Recipients.
|
|
||||||
|
|
||||||
Each time you convey a covered work, the recipient automatically
|
|
||||||
receives a license from the original licensors, to run, modify and
|
|
||||||
propagate that work, subject to this License. You are not responsible
|
|
||||||
for enforcing compliance by third parties with this License.
|
|
||||||
|
|
||||||
An "entity transaction" is a transaction transferring control of an
|
|
||||||
organization, or substantially all assets of one, or subdividing an
|
|
||||||
organization, or merging organizations. If propagation of a covered
|
|
||||||
work results from an entity transaction, each party to that
|
|
||||||
transaction who receives a copy of the work also receives whatever
|
|
||||||
licenses to the work the party's predecessor in interest had or could
|
|
||||||
give under the previous paragraph, plus a right to possession of the
|
|
||||||
Corresponding Source of the work from the predecessor in interest, if
|
|
||||||
the predecessor has it or can get it with reasonable efforts.
|
|
||||||
|
|
||||||
You may not impose any further restrictions on the exercise of the
|
|
||||||
rights granted or affirmed under this License. For example, you may
|
|
||||||
not impose a license fee, royalty, or other charge for exercise of
|
|
||||||
rights granted under this License, and you may not initiate litigation
|
|
||||||
(including a cross-claim or counterclaim in a lawsuit) alleging that
|
|
||||||
any patent claim is infringed by making, using, selling, offering for
|
|
||||||
sale, or importing the Program or any portion of it.
|
|
||||||
|
|
||||||
11. Patents.
|
|
||||||
|
|
||||||
A "contributor" is a copyright holder who authorizes use under this
|
|
||||||
License of the Program or a work on which the Program is based. The
|
|
||||||
work thus licensed is called the contributor's "contributor version".
|
|
||||||
|
|
||||||
A contributor's "essential patent claims" are all patent claims
|
|
||||||
owned or controlled by the contributor, whether already acquired or
|
|
||||||
hereafter acquired, that would be infringed by some manner, permitted
|
|
||||||
by this License, of making, using, or selling its contributor version,
|
|
||||||
but do not include claims that would be infringed only as a
|
|
||||||
consequence of further modification of the contributor version. For
|
|
||||||
purposes of this definition, "control" includes the right to grant
|
|
||||||
patent sublicenses in a manner consistent with the requirements of
|
|
||||||
this License.
|
|
||||||
|
|
||||||
Each contributor grants you a non-exclusive, worldwide, royalty-free
|
|
||||||
patent license under the contributor's essential patent claims, to
|
|
||||||
make, use, sell, offer for sale, import and otherwise run, modify and
|
|
||||||
propagate the contents of its contributor version.
|
|
||||||
|
|
||||||
In the following three paragraphs, a "patent license" is any express
|
|
||||||
agreement or commitment, however denominated, not to enforce a patent
|
|
||||||
(such as an express permission to practice a patent or covenant not to
|
|
||||||
sue for patent infringement). To "grant" such a patent license to a
|
|
||||||
party means to make such an agreement or commitment not to enforce a
|
|
||||||
patent against the party.
|
|
||||||
|
|
||||||
If you convey a covered work, knowingly relying on a patent license,
|
|
||||||
and the Corresponding Source of the work is not available for anyone
|
|
||||||
to copy, free of charge and under the terms of this License, through a
|
|
||||||
publicly available network server or other readily accessible means,
|
|
||||||
then you must either (1) cause the Corresponding Source to be so
|
|
||||||
available, or (2) arrange to deprive yourself of the benefit of the
|
|
||||||
patent license for this particular work, or (3) arrange, in a manner
|
|
||||||
consistent with the requirements of this License, to extend the patent
|
|
||||||
license to downstream recipients. "Knowingly relying" means you have
|
|
||||||
actual knowledge that, but for the patent license, your conveying the
|
|
||||||
covered work in a country, or your recipient's use of the covered work
|
|
||||||
in a country, would infringe one or more identifiable patents in that
|
|
||||||
country that you have reason to believe are valid.
|
|
||||||
|
|
||||||
If, pursuant to or in connection with a single transaction or
|
|
||||||
arrangement, you convey, or propagate by procuring conveyance of, a
|
|
||||||
covered work, and grant a patent license to some of the parties
|
|
||||||
receiving the covered work authorizing them to use, propagate, modify
|
|
||||||
or convey a specific copy of the covered work, then the patent license
|
|
||||||
you grant is automatically extended to all recipients of the covered
|
|
||||||
work and works based on it.
|
|
||||||
|
|
||||||
A patent license is "discriminatory" if it does not include within
|
|
||||||
the scope of its coverage, prohibits the exercise of, or is
|
|
||||||
conditioned on the non-exercise of one or more of the rights that are
|
|
||||||
specifically granted under this License. You may not convey a covered
|
|
||||||
work if you are a party to an arrangement with a third party that is
|
|
||||||
in the business of distributing software, under which you make payment
|
|
||||||
to the third party based on the extent of your activity of conveying
|
|
||||||
the work, and under which the third party grants, to any of the
|
|
||||||
parties who would receive the covered work from you, a discriminatory
|
|
||||||
patent license (a) in connection with copies of the covered work
|
|
||||||
conveyed by you (or copies made from those copies), or (b) primarily
|
|
||||||
for and in connection with specific products or compilations that
|
|
||||||
contain the covered work, unless you entered into that arrangement,
|
|
||||||
or that patent license was granted, prior to 28 March 2007.
|
|
||||||
|
|
||||||
Nothing in this License shall be construed as excluding or limiting
|
|
||||||
any implied license or other defenses to infringement that may
|
|
||||||
otherwise be available to you under applicable patent law.
|
|
||||||
|
|
||||||
12. No Surrender of Others' Freedom.
|
|
||||||
|
|
||||||
If conditions are imposed on you (whether by court order, agreement or
|
|
||||||
otherwise) that contradict the conditions of this License, they do not
|
|
||||||
excuse you from the conditions of this License. If you cannot convey a
|
|
||||||
covered work so as to satisfy simultaneously your obligations under this
|
|
||||||
License and any other pertinent obligations, then as a consequence you may
|
|
||||||
not convey it at all. For example, if you agree to terms that obligate you
|
|
||||||
to collect a royalty for further conveying from those to whom you convey
|
|
||||||
the Program, the only way you could satisfy both those terms and this
|
|
||||||
License would be to refrain entirely from conveying the Program.
|
|
||||||
|
|
||||||
13. Use with the GNU Affero General Public License.
|
|
||||||
|
|
||||||
Notwithstanding any other provision of this License, you have
|
|
||||||
permission to link or combine any covered work with a work licensed
|
|
||||||
under version 3 of the GNU Affero General Public License into a single
|
|
||||||
combined work, and to convey the resulting work. The terms of this
|
|
||||||
License will continue to apply to the part which is the covered work,
|
|
||||||
but the special requirements of the GNU Affero General Public License,
|
|
||||||
section 13, concerning interaction through a network will apply to the
|
|
||||||
combination as such.
|
|
||||||
|
|
||||||
14. Revised Versions of this License.
|
|
||||||
|
|
||||||
The Free Software Foundation may publish revised and/or new versions of
|
|
||||||
the GNU General Public License from time to time. Such new versions will
|
|
||||||
be similar in spirit to the present version, but may differ in detail to
|
|
||||||
address new problems or concerns.
|
|
||||||
|
|
||||||
Each version is given a distinguishing version number. If the
|
|
||||||
Program specifies that a certain numbered version of the GNU General
|
|
||||||
Public License "or any later version" applies to it, you have the
|
|
||||||
option of following the terms and conditions either of that numbered
|
|
||||||
version or of any later version published by the Free Software
|
|
||||||
Foundation. If the Program does not specify a version number of the
|
|
||||||
GNU General Public License, you may choose any version ever published
|
|
||||||
by the Free Software Foundation.
|
|
||||||
|
|
||||||
If the Program specifies that a proxy can decide which future
|
|
||||||
versions of the GNU General Public License can be used, that proxy's
|
|
||||||
public statement of acceptance of a version permanently authorizes you
|
|
||||||
to choose that version for the Program.
|
|
||||||
|
|
||||||
Later license versions may give you additional or different
|
|
||||||
permissions. However, no additional obligations are imposed on any
|
|
||||||
author or copyright holder as a result of your choosing to follow a
|
|
||||||
later version.
|
|
||||||
|
|
||||||
15. Disclaimer of Warranty.
|
|
||||||
|
|
||||||
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
|
|
||||||
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
|
|
||||||
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
|
|
||||||
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
|
|
||||||
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
||||||
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
|
|
||||||
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
|
|
||||||
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
|
|
||||||
|
|
||||||
16. Limitation of Liability.
|
|
||||||
|
|
||||||
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
|
|
||||||
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
|
|
||||||
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
|
|
||||||
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
|
|
||||||
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
|
|
||||||
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
|
|
||||||
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
|
|
||||||
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
|
|
||||||
SUCH DAMAGES.
|
|
||||||
|
|
||||||
17. Interpretation of Sections 15 and 16.
|
|
||||||
|
|
||||||
If the disclaimer of warranty and limitation of liability provided
|
|
||||||
above cannot be given local legal effect according to their terms,
|
|
||||||
reviewing courts shall apply local law that most closely approximates
|
|
||||||
an absolute waiver of all civil liability in connection with the
|
|
||||||
Program, unless a warranty or assumption of liability accompanies a
|
|
||||||
copy of the Program in return for a fee.
|
|
||||||
|
|
||||||
END OF TERMS AND CONDITIONS
|
|
||||||
|
|
||||||
How to Apply These Terms to Your New Programs
|
|
||||||
|
|
||||||
If you develop a new program, and you want it to be of the greatest
|
|
||||||
possible use to the public, the best way to achieve this is to make it
|
|
||||||
free software which everyone can redistribute and change under these terms.
|
|
||||||
|
|
||||||
To do so, attach the following notices to the program. It is safest
|
|
||||||
to attach them to the start of each source file to most effectively
|
|
||||||
state the exclusion of warranty; and each file should have at least
|
|
||||||
the "copyright" line and a pointer to where the full notice is found.
|
|
||||||
|
|
||||||
<one line to give the program's name and a brief idea of what it does.>
|
|
||||||
Copyright (C) <year> <name of author>
|
|
||||||
|
|
||||||
This program is free software: you can redistribute it and/or modify
|
|
||||||
it under the terms of the GNU General Public License as published by
|
|
||||||
the Free Software Foundation, either version 3 of the License, or
|
|
||||||
(at your option) any later version.
|
|
||||||
|
|
||||||
This program is distributed in the hope that it will be useful,
|
|
||||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
||||||
GNU General Public License for more details.
|
|
||||||
|
|
||||||
You should have received a copy of the GNU General Public License
|
|
||||||
along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
||||||
|
|
||||||
Also add information on how to contact you by electronic and paper mail.
|
|
||||||
|
|
||||||
If the program does terminal interaction, make it output a short
|
|
||||||
notice like this when it starts in an interactive mode:
|
|
||||||
|
|
||||||
<program> Copyright (C) <year> <name of author>
|
|
||||||
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
|
|
||||||
This is free software, and you are welcome to redistribute it
|
|
||||||
under certain conditions; type `show c' for details.
|
|
||||||
|
|
||||||
The hypothetical commands `show w' and `show c' should show the appropriate
|
|
||||||
parts of the General Public License. Of course, your program's commands
|
|
||||||
might be different; for a GUI interface, you would use an "about box".
|
|
||||||
|
|
||||||
You should also get your employer (if you work as a programmer) or school,
|
|
||||||
if any, to sign a "copyright disclaimer" for the program, if necessary.
|
|
||||||
For more information on this, and how to apply and follow the GNU GPL, see
|
|
||||||
<https://www.gnu.org/licenses/>.
|
|
||||||
|
|
||||||
The GNU General Public License does not permit incorporating your program
|
|
||||||
into proprietary programs. If your program is a subroutine library, you
|
|
||||||
may consider it more useful to permit linking proprietary applications with
|
|
||||||
the library. If this is what you want to do, use the GNU Lesser General
|
|
||||||
Public License instead of this License. But first, please read
|
|
||||||
<https://www.gnu.org/licenses/why-not-lgpl.html>.
|
|
||||||
17
Makefile
17
Makefile
|
|
@ -1,17 +0,0 @@
|
||||||
all: goimports vet
|
|
||||||
|
|
||||||
vet:
|
|
||||||
GO111MODULE=off go vet
|
|
||||||
|
|
||||||
goimports:
|
|
||||||
goimports -w *.go
|
|
||||||
|
|
||||||
redomod:
|
|
||||||
rm -f go.*
|
|
||||||
goimports -w *.go
|
|
||||||
GO111MODULE= go mod init
|
|
||||||
GO111MODULE= go mod tidy
|
|
||||||
|
|
||||||
clean:
|
|
||||||
-rm -f go.*
|
|
||||||
-go-mod-clean --purge
|
|
||||||
450
RFC-8482
450
RFC-8482
|
|
@ -1,450 +0,0 @@
|
||||||
Internet Engineering Task Force (IETF) J. Abley
|
|
||||||
Request for Comments: 8482 Afilias
|
|
||||||
Updates: 1034, 1035 O. Gudmundsson
|
|
||||||
Category: Standards Track M. Majkowski
|
|
||||||
ISSN: 2070-1721 Cloudflare Inc.
|
|
||||||
E. Hunt
|
|
||||||
ISC
|
|
||||||
January 2019
|
|
||||||
|
|
||||||
|
|
||||||
Providing Minimal-Sized Responses to DNS Queries That Have QTYPE=ANY
|
|
||||||
|
|
||||||
Abstract
|
|
||||||
|
|
||||||
The Domain Name System (DNS) specifies a query type (QTYPE) "ANY".
|
|
||||||
The operator of an authoritative DNS server might choose not to
|
|
||||||
respond to such queries for reasons of local policy, motivated by
|
|
||||||
security, performance, or other reasons.
|
|
||||||
|
|
||||||
The DNS specification does not include specific guidance for the
|
|
||||||
behavior of DNS servers or clients in this situation. This document
|
|
||||||
aims to provide such guidance.
|
|
||||||
|
|
||||||
This document updates RFCs 1034 and 1035.
|
|
||||||
|
|
||||||
Status of This Memo
|
|
||||||
|
|
||||||
This is an Internet Standards Track document.
|
|
||||||
|
|
||||||
This document is a product of the Internet Engineering Task Force
|
|
||||||
(IETF). It represents the consensus of the IETF community. It has
|
|
||||||
received public review and has been approved for publication by the
|
|
||||||
Internet Engineering Steering Group (IESG). Further information on
|
|
||||||
Internet Standards is available in Section 2 of RFC 7841.
|
|
||||||
|
|
||||||
Information about the current status of this document, any errata,
|
|
||||||
and how to provide feedback on it may be obtained at
|
|
||||||
https://www.rfc-editor.org/info/rfc8482.
|
|
||||||
|
|
||||||
|
|
||||||
Copyright Notice
|
|
||||||
|
|
||||||
Copyright (c) 2019 IETF Trust and the persons identified as the
|
|
||||||
document authors. All rights reserved.
|
|
||||||
|
|
||||||
This document is subject to BCP 78 and the IETF Trust's Legal
|
|
||||||
Provisions Relating to IETF Documents
|
|
||||||
(https://trustee.ietf.org/license-info) in effect on the date of
|
|
||||||
publication of this document. Please review these documents
|
|
||||||
carefully, as they describe your rights and restrictions with respect
|
|
||||||
to this document. Code Components extracted from this document must
|
|
||||||
include Simplified BSD License text as described in Section 4.e of
|
|
||||||
the Trust Legal Provisions and are provided without warranty as
|
|
||||||
described in the Simplified BSD License.
|
|
||||||
|
|
||||||
Table of Contents
|
|
||||||
|
|
||||||
1. Introduction ....................................................3
|
|
||||||
1.1. Terminology ................................................3
|
|
||||||
2. Motivations for Use of ANY Queries ..............................3
|
|
||||||
3. General Approach ................................................4
|
|
||||||
4. Behavior of DNS Responders ......................................5
|
|
||||||
4.1. Answer with a Subset of Available RRsets ...................5
|
|
||||||
4.2. Answer with a Synthesized HINFO RRset ......................5
|
|
||||||
4.3. Answer with Best Guess as to Intention .....................6
|
|
||||||
4.4. Transport Considerations ...................................6
|
|
||||||
5. Behavior of DNS Initiators ......................................7
|
|
||||||
6. HINFO Considerations ............................................7
|
|
||||||
7. Updates to RFCs 1034 and 1035 ...................................7
|
|
||||||
8. Implementation Experience .......................................8
|
|
||||||
9. Security Considerations .........................................8
|
|
||||||
10. IANA Considerations ............................................9
|
|
||||||
11. References .....................................................9
|
|
||||||
11.1. Normative References ......................................9
|
|
||||||
11.2. Informative References ....................................9
|
|
||||||
Acknowledgements ..................................................10
|
|
||||||
Authors' Addresses ................................................10
|
|
||||||
|
|
||||||
|
|
||||||
1. Introduction
|
|
||||||
|
|
||||||
The Domain Name System (DNS) specifies a query type (QTYPE) "ANY".
|
|
||||||
The operator of an authoritative DNS server might choose not to
|
|
||||||
respond to such queries for reasons of local policy, motivated by
|
|
||||||
security, performance, or other reasons.
|
|
||||||
|
|
||||||
The DNS specification [RFC1034] [RFC1035] does not include specific
|
|
||||||
guidance for the behavior of DNS servers or clients in this
|
|
||||||
situation. This document aims to provide such guidance.
|
|
||||||
|
|
||||||
1.1. Terminology
|
|
||||||
|
|
||||||
This document uses terminology specific to the Domain Name System
|
|
||||||
(DNS), descriptions of which can be found in [RFC8499].
|
|
||||||
|
|
||||||
[RFC1035] defined type 255 to be "*". However, DNS implementations
|
|
||||||
commonly use the keyword "ANY" to refer to that type code; this
|
|
||||||
document follows that common usage.
|
|
||||||
|
|
||||||
In this document, "ANY query" refers to a DNS meta-query with
|
|
||||||
QTYPE=ANY. An "ANY response" is a response to such a query.
|
|
||||||
|
|
||||||
In this document, "conventional ANY response" means an ANY response
|
|
||||||
that is constructed in accordance with the algorithm documented in
|
|
||||||
Section 4.3.2 of [RFC1034] and specifically without implementing any
|
|
||||||
of the mechanisms described in this document.
|
|
||||||
|
|
||||||
In an exchange of DNS messages between two hosts, this document
|
|
||||||
refers to the host sending a DNS request as the "initiator" and the
|
|
||||||
host sending a DNS response as the "responder".
|
|
||||||
|
|
||||||
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
|
|
||||||
"SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
|
|
||||||
"OPTIONAL" in this document are to be interpreted as described in
|
|
||||||
BCP 14 [RFC2119] [RFC8174] when, and only when, they appear in all
|
|
||||||
capitals, as shown here.
|
|
||||||
|
|
||||||
2. Motivations for Use of ANY Queries
|
|
||||||
|
|
||||||
ANY queries are legitimately used for debugging and checking the
|
|
||||||
state of a DNS server for a particular name.
|
|
||||||
|
|
||||||
ANY queries are sometimes used as an attempt to reduce the number of
|
|
||||||
queries needed to get information, e.g., to obtain MX, A, and AAAA
|
|
||||||
resource record sets (RRsets) for a mail domain in a single query.
|
|
||||||
However, there is no documented guidance available for this use case,
|
|
||||||
and some implementations have been observed not to function as their
|
|
||||||
|
|
||||||
developers expected. If implementers assume that an ANY query will
|
|
||||||
ultimately be received by an authoritative server and will fetch all
|
|
||||||
existing RRsets, they should include a fallback mechanism to use when
|
|
||||||
that does not happen.
|
|
||||||
|
|
||||||
ANY queries are frequently used to exploit the amplification
|
|
||||||
potential of DNS servers and resolvers using spoofed source addresses
|
|
||||||
and UDP transport (see [RFC5358]). Having the ability to return
|
|
||||||
small responses to such queries makes DNS servers less attractive
|
|
||||||
amplifiers.
|
|
||||||
|
|
||||||
ANY queries are sometimes used to help mine authoritative-only DNS
|
|
||||||
servers for zone data, since they are expected to return all RRsets
|
|
||||||
for a particular query name. If DNS operators prefer to reduce the
|
|
||||||
potential for information leaks, they might choose not to send large
|
|
||||||
ANY responses.
|
|
||||||
|
|
||||||
Some authoritative-only DNS server implementations require additional
|
|
||||||
processing in order to send a conventional ANY response; avoiding
|
|
||||||
that processing expense might be desirable.
|
|
||||||
|
|
||||||
3. General Approach
|
|
||||||
|
|
||||||
This proposal provides a mechanism for an authoritative DNS server to
|
|
||||||
signal that conventional ANY queries are not supported for a
|
|
||||||
particular QNAME. It does so in a way that is both compatible with
|
|
||||||
and triggers desirable behavior by unmodified clients (e.g., DNS
|
|
||||||
resolvers).
|
|
||||||
|
|
||||||
Alternative proposals for dealing with ANY queries have been
|
|
||||||
discussed. One approach proposes using a new RCODE to signal that an
|
|
||||||
authoritative server did not answer ANY queries in the standard way.
|
|
||||||
This approach was found to have an undesirable effect on both
|
|
||||||
resolvers and authoritative-only servers; resolvers receiving an
|
|
||||||
unknown RCODE would resend the same query to all available
|
|
||||||
authoritative servers rather than suppress future ANY queries for the
|
|
||||||
same QNAME.
|
|
||||||
|
|
||||||
The proposal described in this document avoids that outcome by
|
|
||||||
returning a non-empty RRset in the ANY response, which provides
|
|
||||||
resolvers with something to cache and effectively suppresses repeat
|
|
||||||
queries to the same or different authoritative DNS servers.
|
|
||||||
|
|
||||||
|
|
||||||
4. Behavior of DNS Responders
|
|
||||||
|
|
||||||
Below are the three different modes of behavior by DNS responders
|
|
||||||
when processing queries with QNAMEs that exist, QCLASS=IN, and
|
|
||||||
QTYPE=ANY. Operators and implementers are free to choose whichever
|
|
||||||
mechanism best suits their environment.
|
|
||||||
|
|
||||||
1. A DNS responder can choose to select one or a larger subset of
|
|
||||||
the available RRsets at the QNAME.
|
|
||||||
|
|
||||||
2. A DNS responder can return a synthesized HINFO resource record.
|
|
||||||
See Section 6 for discussion of the use of HINFO.
|
|
||||||
|
|
||||||
3. A resolver can try to give out the most likely records the
|
|
||||||
requester wants. This is not always possible, and the result
|
|
||||||
might well be a large response.
|
|
||||||
|
|
||||||
Except as described below in this section, the DNS responder MUST
|
|
||||||
follow the standard algorithms when constructing a response.
|
|
||||||
|
|
||||||
4.1. Answer with a Subset of Available RRsets
|
|
||||||
|
|
||||||
A DNS responder that receives an ANY query MAY decline to provide a
|
|
||||||
conventional ANY response or MAY instead send a response with a
|
|
||||||
single RRset (or a larger subset of available RRsets) in the answer
|
|
||||||
section.
|
|
||||||
|
|
||||||
The RRsets returned in the answer section of the response MAY consist
|
|
||||||
of a single RRset owned by the name specified in the QNAME. Where
|
|
||||||
multiple RRsets exist, the responder SHOULD choose a small subset of
|
|
||||||
those available to reduce the amplification potential of the
|
|
||||||
response.
|
|
||||||
|
|
||||||
If the zone is signed, appropriate RRSIG records MUST be included in
|
|
||||||
the answer.
|
|
||||||
|
|
||||||
Note that this mechanism does not provide any signaling to indicate
|
|
||||||
to a client that an incomplete subset of the available RRsets has
|
|
||||||
been returned.
|
|
||||||
|
|
||||||
4.2. Answer with a Synthesized HINFO RRset
|
|
||||||
|
|
||||||
If there is no CNAME present at the owner name matching the QNAME,
|
|
||||||
the resource record returned in the response MAY instead be
|
|
||||||
synthesized. In this case, a single HINFO resource record SHOULD be
|
|
||||||
returned. The CPU field of the HINFO RDATA SHOULD be set to
|
|
||||||
"RFC8482". The OS field of the HINFO RDATA SHOULD be set to the null
|
|
||||||
string to minimize the size of the response.
|
|
||||||
|
|
||||||
The TTL encoded for the synthesized HINFO resource record SHOULD be
|
|
||||||
chosen by the operator of the DNS responder to be large enough to
|
|
||||||
suppress frequent subsequent ANY queries from the same initiator with
|
|
||||||
the same QNAME, understanding that a TTL that is too long might make
|
|
||||||
policy changes relating to ANY queries difficult to change in the
|
|
||||||
future. The specific value used SHOULD be configurable by the
|
|
||||||
operator of the nameserver according to local policy, based on the
|
|
||||||
familiar considerations involved in choosing a TTL value for any
|
|
||||||
resource record in any zone.
|
|
||||||
|
|
||||||
If the DNS query includes DO=1 and the QNAME corresponds to a zone
|
|
||||||
that is known by the responder to be signed, a valid RRSIG for the
|
|
||||||
RRsets in the answer (or authority if answer is empty) section MUST
|
|
||||||
be returned. In the case of DO=0, the RRSIG SHOULD be omitted.
|
|
||||||
|
|
||||||
A system that receives an HINFO response SHOULD NOT infer that the
|
|
||||||
response was generated according to this specification and apply any
|
|
||||||
special processing of the response because, in general, it is not
|
|
||||||
possible to tell with certainty whether the HINFO RRset received was
|
|
||||||
synthesized. In particular, systems SHOULD NOT rely upon the HINFO
|
|
||||||
RDATA described in this section to distinguish between synthesized
|
|
||||||
and non-synthesized HINFO RRsets.
|
|
||||||
|
|
||||||
4.3. Answer with Best Guess as to Intention
|
|
||||||
|
|
||||||
In some cases, it is possible to guess what the initiator wants in
|
|
||||||
the answer (but not always). Some implementations have implemented
|
|
||||||
the spirit of this document by returning all RRsets of RRTYPE CNAME,
|
|
||||||
MX, A, and AAAA that are present at the owner name while suppressing
|
|
||||||
others. This heuristic seems to work well in practice; it satisfies
|
|
||||||
the needs of some applications whilst suppressing other RRsets such
|
|
||||||
as TXT and DNSKEY that can often contribute to large responses.
|
|
||||||
Whilst some applications may be satisfied by this behavior, the
|
|
||||||
resulting responses in the general case are larger than in the
|
|
||||||
approaches described in Sections 4.1 and 4.2.
|
|
||||||
|
|
||||||
As before, if the zone is signed and the DO bit is set on the
|
|
||||||
corresponding query, an RRSIG RRset MUST be included in the response.
|
|
||||||
|
|
||||||
4.4. Transport Considerations
|
|
||||||
|
|
||||||
A DNS responder MAY behave differently when processing ANY queries
|
|
||||||
received over different transports, e.g., by providing a conventional
|
|
||||||
ANY response over TCP whilst using one of the other mechanisms
|
|
||||||
specified in this document in the case where a query was received
|
|
||||||
using UDP.
|
|
||||||
|
|
||||||
Implementers MAY provide configuration options to allow operators to
|
|
||||||
specify different behavior over different transports.
|
|
||||||
|
|
||||||
5. Behavior of DNS Initiators
|
|
||||||
|
|
||||||
A DNS initiator that sends a query with QTYPE=ANY and receives a
|
|
||||||
response containing an HINFO resource record or a single RRset, as
|
|
||||||
described in Section 4, MAY cache the response in the normal way.
|
|
||||||
Such cached resource records SHOULD be retained in the cache
|
|
||||||
following normal caching semantics, as with any other response
|
|
||||||
received from a DNS responder.
|
|
||||||
|
|
||||||
A DNS initiator MAY suppress queries with QTYPE=ANY in the event that
|
|
||||||
the local cache contains a matching HINFO resource record with the
|
|
||||||
CPU field of the HINFO RDATA, as described in Section 4. A DNS
|
|
||||||
initiator MAY instead respond to such queries with the contents of
|
|
||||||
the local cache in the usual way.
|
|
||||||
|
|
||||||
6. HINFO Considerations
|
|
||||||
|
|
||||||
It is possible that the synthesized HINFO RRset in an ANY response,
|
|
||||||
once cached by the initiator, might suppress subsequent queries from
|
|
||||||
the same initiator with QTYPE=HINFO. Thus, the use of HINFO in this
|
|
||||||
proposal would effectively mask the HINFO RRset present in the zone.
|
|
||||||
|
|
||||||
Operators of authoritative servers who serve zones that rely upon
|
|
||||||
conventional use of the HINFO RRTYPE SHOULD sensibly choose the
|
|
||||||
"single RRset" method described in this document or select another
|
|
||||||
type.
|
|
||||||
|
|
||||||
The HINFO RRTYPE is believed to be rarely used in the DNS at the time
|
|
||||||
of writing, based on observations made in passive DNS and at
|
|
||||||
recursive and authoritative DNS servers.
|
|
||||||
|
|
||||||
7. Updates to RFCs 1034 and 1035
|
|
||||||
|
|
||||||
This document extends the specification for processing ANY queries
|
|
||||||
described in Section 4.3.2 of [RFC1034].
|
|
||||||
|
|
||||||
It is important to note that returning a subset of available RRsets
|
|
||||||
when processing an ANY query is legitimate and consistent with
|
|
||||||
[RFC1035]; it can be argued that ANY does not always mean ALL, as
|
|
||||||
used in Section 3.2.3 of [RFC1035]. The main difference here is that
|
|
||||||
the TC bit SHOULD NOT be set in the response, thus indicating that
|
|
||||||
this is not a complete answer.
|
|
||||||
|
|
||||||
This document describes optional behavior for both DNS initiators and
|
|
||||||
responders; implementation of the guidance provided by this document
|
|
||||||
is OPTIONAL.
|
|
||||||
|
|
||||||
RRSIG queries (i.e., queries with QTYPE=RRSIG) are similar to ANY
|
|
||||||
queries in the sense that they have the potential to generate large
|
|
||||||
responses as well as extra work for the responders that process them,
|
|
||||||
e.g., in the case where signatures are generated on the fly. RRSIG
|
|
||||||
RRsets are not usually obtained using such explicit queries but are
|
|
||||||
rather included in the responses for other RRsets that the RRSIGs
|
|
||||||
cover. This document does not specify appropriate behavior for RRSIG
|
|
||||||
queries; however, future such advice might well benefit from
|
|
||||||
consistency with and experience with the approaches for ANY queries
|
|
||||||
described here.
|
|
||||||
|
|
||||||
8. Implementation Experience
|
|
||||||
|
|
||||||
In October 2015, the Cloudflare authoritative nameserver
|
|
||||||
implementation implemented the HINFO response. A few minor problems
|
|
||||||
were reported and have since been resolved.
|
|
||||||
|
|
||||||
An implementation of the subset-mode response to ANY queries was
|
|
||||||
implemented in NSD 4.1 in 2016.
|
|
||||||
|
|
||||||
An implementation of a single RRset response to an ANY query was made
|
|
||||||
for BIND9 by Tony Finch, and that functionality was subsequently made
|
|
||||||
available in production releases starting in BIND 9.11.
|
|
||||||
|
|
||||||
9. Security Considerations
|
|
||||||
|
|
||||||
Queries with QTYPE=ANY are frequently observed as part of reflection
|
|
||||||
attacks, since a relatively small query can be used to elicit a large
|
|
||||||
response. This is a desirable characteristic if the goal is to
|
|
||||||
maximize the amplification potential of a DNS server as part of a
|
|
||||||
volumetric attack. The ability of a DNS operator to suppress such
|
|
||||||
responses on a particular server makes that server a less useful
|
|
||||||
amplifier.
|
|
||||||
|
|
||||||
The optional behavior described in this document to reduce the size
|
|
||||||
of responses to queries with QTYPE=ANY is compatible with the use of
|
|
||||||
DNSSEC by both initiator and responder.
|
|
||||||
|
|
||||||
|
|
||||||
10. IANA Considerations
|
|
||||||
|
|
||||||
IANA has updated the following entry in the "Resource Record (RR)
|
|
||||||
TYPEs" registry [RR_TYPES]:
|
|
||||||
|
|
||||||
+------+-------+-------------------------------+--------------------+
|
|
||||||
| TYPE | Value | Meaning | Reference |
|
|
||||||
+------+-------+-------------------------------+--------------------+
|
|
||||||
| * | 255 | A request for some or all | [RFC1035][RFC6895] |
|
|
||||||
| | | records the server has | [RFC8482] |
|
|
||||||
| | | available | |
|
|
||||||
+------+-------+-------------------------------+--------------------+
|
|
||||||
|
|
||||||
11. References
|
|
||||||
|
|
||||||
11.1. Normative References
|
|
||||||
|
|
||||||
[RFC1034] Mockapetris, P., "Domain names - concepts and facilities",
|
|
||||||
STD 13, RFC 1034, DOI 10.17487/RFC1034, November 1987,
|
|
||||||
<https://www.rfc-editor.org/info/rfc1034>.
|
|
||||||
|
|
||||||
[RFC1035] Mockapetris, P., "Domain names - implementation and
|
|
||||||
specification", STD 13, RFC 1035, DOI 10.17487/RFC1035,
|
|
||||||
November 1987, <https://www.rfc-editor.org/info/rfc1035>.
|
|
||||||
|
|
||||||
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
|
|
||||||
Requirement Levels", BCP 14, RFC 2119,
|
|
||||||
DOI 10.17487/RFC2119, March 1997,
|
|
||||||
<https://www.rfc-editor.org/info/rfc2119>.
|
|
||||||
|
|
||||||
[RFC8174] Leiba, B., "Ambiguity of Uppercase vs Lowercase in RFC
|
|
||||||
2119 Key Words", BCP 14, RFC 8174, DOI 10.17487/RFC8174,
|
|
||||||
May 2017, <https://www.rfc-editor.org/info/rfc8174>.
|
|
||||||
|
|
||||||
11.2. Informative References
|
|
||||||
|
|
||||||
[RFC5358] Damas, J. and F. Neves, "Preventing Use of Recursive
|
|
||||||
Nameservers in Reflector Attacks", BCP 140, RFC 5358,
|
|
||||||
DOI 10.17487/RFC5358, October 2008,
|
|
||||||
<https://www.rfc-editor.org/info/rfc5358>.
|
|
||||||
|
|
||||||
[RFC6895] Eastlake 3rd, D., "Domain Name System (DNS) IANA
|
|
||||||
Considerations", BCP 42, RFC 6895, DOI 10.17487/RFC6895,
|
|
||||||
April 2013, <https://www.rfc-editor.org/info/rfc6895>.
|
|
||||||
|
|
||||||
[RFC8499] Hoffman, P., Sullivan, A., and K. Fujiwara, "DNS
|
|
||||||
Terminology", BCP 219, RFC 8499, DOI 10.17487/RFC8499,
|
|
||||||
January 2019, <https://www.rfc-editor.org/info/rfc8499>.
|
|
||||||
|
|
||||||
[RR_TYPES] IANA, "Domain Name System (DNS) Parameters",
|
|
||||||
<https://www.iana.org/assignments/dns-parameters>.
|
|
||||||
|
|
||||||
Acknowledgements
|
|
||||||
|
|
||||||
David Lawrence provided valuable observations and concrete
|
|
||||||
suggestions. Jeremy Laidman helped make the document better. Tony
|
|
||||||
Finch realized that this document was valuable and implemented it
|
|
||||||
while under attack. Richard Gibson identified areas where more
|
|
||||||
detail and accuracy were useful. A large number of other people also
|
|
||||||
provided comments and suggestions; we thank them all for the
|
|
||||||
feedback.
|
|
||||||
|
|
||||||
Authors' Addresses
|
|
||||||
|
|
||||||
Joe Abley
|
|
||||||
Afilias
|
|
||||||
300-184 York Street
|
|
||||||
London, ON N6A 1B5
|
|
||||||
Canada
|
|
||||||
|
|
||||||
Phone: +1 519 670 9327
|
|
||||||
Email: jabley@afilias.info
|
|
||||||
|
|
||||||
|
|
||||||
Olafur Gudmundsson
|
|
||||||
Cloudflare Inc.
|
|
||||||
|
|
||||||
Email: olafur+ietf@cloudflare.com
|
|
||||||
|
|
||||||
|
|
||||||
Marek Majkowski
|
|
||||||
Cloudflare Inc.
|
|
||||||
|
|
||||||
Email: marek@cloudflare.com
|
|
||||||
|
|
||||||
|
|
||||||
Evan Hunt
|
|
||||||
ISC
|
|
||||||
950 Charter St
|
|
||||||
Redwood City, CA 94063
|
|
||||||
United States of America
|
|
||||||
|
|
||||||
Email: each@isc.org
|
|
||||||
38
args.go
38
args.go
|
|
@ -1,38 +0,0 @@
|
||||||
package linuxstatus
|
|
||||||
|
|
||||||
/*
|
|
||||||
this enables command line options from other packages like 'gui' and 'log'
|
|
||||||
*/
|
|
||||||
|
|
||||||
import (
|
|
||||||
"go.wit.com/log"
|
|
||||||
)
|
|
||||||
|
|
||||||
var NOW *log.LogFlag
|
|
||||||
var INFO *log.LogFlag
|
|
||||||
var NET *log.LogFlag
|
|
||||||
var DNS *log.LogFlag
|
|
||||||
|
|
||||||
var PROC *log.LogFlag
|
|
||||||
var SPEW *log.LogFlag
|
|
||||||
var WARN *log.LogFlag
|
|
||||||
|
|
||||||
var CHANGE *log.LogFlag
|
|
||||||
var STATUS *log.LogFlag
|
|
||||||
|
|
||||||
func init() {
|
|
||||||
full := "go.wit.com/control-panels/dns/linuxstatus"
|
|
||||||
short := "linux"
|
|
||||||
|
|
||||||
NOW = log.NewFlag("NOW", true, full, short, "temp debugging stuff")
|
|
||||||
INFO = log.NewFlag("INFO", false, full, short, "normal debugging stuff")
|
|
||||||
NET = log.NewFlag("NET", false, full, short, "Network logging")
|
|
||||||
DNS = log.NewFlag("DNS", false, full, short, "dnsStatus.update()")
|
|
||||||
|
|
||||||
PROC = log.NewFlag("PROC", false, full, short, "/proc loggging")
|
|
||||||
WARN = log.NewFlag("WARN", true, full, short, "bad things")
|
|
||||||
SPEW = log.NewFlag("SPEW", false, full, short, "spew stuff")
|
|
||||||
|
|
||||||
CHANGE = log.NewFlag("CHANGE", true, full, short, "when host or dns change")
|
|
||||||
STATUS = log.NewFlag("STATUS", false, full, short, "Update() details")
|
|
||||||
}
|
|
||||||
63
common.go
63
common.go
|
|
@ -1,63 +0,0 @@
|
||||||
// This creates a simple hello world window
|
|
||||||
package linuxstatus
|
|
||||||
|
|
||||||
import (
|
|
||||||
"go.wit.com/log"
|
|
||||||
)
|
|
||||||
|
|
||||||
// reports externally if something has changed
|
|
||||||
// since the last time it was asked about it
|
|
||||||
func (ls *LinuxStatus) Changed() bool {
|
|
||||||
if !ls.Ready() {
|
|
||||||
return false
|
|
||||||
}
|
|
||||||
if ls.changed {
|
|
||||||
ls.changed = false
|
|
||||||
return true
|
|
||||||
}
|
|
||||||
return false
|
|
||||||
}
|
|
||||||
|
|
||||||
func (ls *LinuxStatus) Show() {
|
|
||||||
if !ls.Ready() {
|
|
||||||
return
|
|
||||||
}
|
|
||||||
log.Log(CHANGE, "Show() window ready =", ls.ready)
|
|
||||||
ls.window.Show()
|
|
||||||
ls.hidden = false
|
|
||||||
}
|
|
||||||
|
|
||||||
func (ls *LinuxStatus) Hide() {
|
|
||||||
if !ls.Ready() {
|
|
||||||
return
|
|
||||||
}
|
|
||||||
log.Log(CHANGE, "Hide() window ready =", ls.ready)
|
|
||||||
ls.window.Hide()
|
|
||||||
ls.hidden = true
|
|
||||||
}
|
|
||||||
|
|
||||||
func (ls *LinuxStatus) Toggle() {
|
|
||||||
if !ls.Ready() {
|
|
||||||
return
|
|
||||||
}
|
|
||||||
log.Log(CHANGE, "Toggle() window ready =", ls.ready)
|
|
||||||
if ls.hidden {
|
|
||||||
ls.Show()
|
|
||||||
} else {
|
|
||||||
ls.Hide()
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
func (ls *LinuxStatus) Ready() bool {
|
|
||||||
log.Log(SPEW, "Ready() maybe not ready? ls =", ls)
|
|
||||||
if me == nil {
|
|
||||||
return false
|
|
||||||
}
|
|
||||||
if ls == nil {
|
|
||||||
return false
|
|
||||||
}
|
|
||||||
if ls.window == nil {
|
|
||||||
return false
|
|
||||||
}
|
|
||||||
return me.ready
|
|
||||||
}
|
|
||||||
|
|
@ -0,0 +1,47 @@
|
||||||
|
# GITVERSION=$(shell git rev-parse FETCH_HEAD)
|
||||||
|
VERSION=$(shell git describe --tags $(git rev-list --tags --max-count=1) | sed 's/^v//')
|
||||||
|
|
||||||
|
BASENAME=control-panel-dns
|
||||||
|
|
||||||
|
all: help deb
|
||||||
|
|
||||||
|
help:
|
||||||
|
@echo
|
||||||
|
@echo "make deb # attempt to build the .deb package using dpkg"
|
||||||
|
@echo
|
||||||
|
|
||||||
|
deb: clean extract DEBIAN build
|
||||||
|
|
||||||
|
clean:
|
||||||
|
rm -rf ../files
|
||||||
|
rm -f ../*.deb
|
||||||
|
rm -f ../*.tar.xz data.tar.xz
|
||||||
|
rm -rf DEBIAN
|
||||||
|
|
||||||
|
extract:
|
||||||
|
mkdir -p ../files/usr/bin
|
||||||
|
cp ../control-panel-dns ../files/usr/bin/
|
||||||
|
|
||||||
|
# makes the DEBIAN/ directory
|
||||||
|
DEBIAN:
|
||||||
|
mkdir -p DEBIAN
|
||||||
|
|
||||||
|
# make the md5sum file
|
||||||
|
cd ../files/ && find -type f -exec md5sum '{}' \; |sort -k2 >../md5sums
|
||||||
|
mv ../md5sums DEBIAN/
|
||||||
|
|
||||||
|
# make the control there
|
||||||
|
mkdir -p DEBIAN
|
||||||
|
cp control DEBIAN/
|
||||||
|
echo Version: ${VERSION} >>DEBIAN/control
|
||||||
|
|
||||||
|
cp postinst DEBIAN
|
||||||
|
|
||||||
|
build:
|
||||||
|
mv DEBIAN ../files/
|
||||||
|
cd .. && dpkg-deb --build files ${BASENAME}_${VERSION}_amd64.deb
|
||||||
|
@echo
|
||||||
|
@echo '#######################'
|
||||||
|
cd .. && dpkg-deb --info ${BASENAME}_${VERSION}_amd64.deb
|
||||||
|
@echo '#######################'
|
||||||
|
@echo
|
||||||
|
|
@ -0,0 +1 @@
|
||||||
|
10
|
||||||
|
|
@ -0,0 +1,9 @@
|
||||||
|
Source: go-wit-gui
|
||||||
|
Build-Depends: golang
|
||||||
|
Package: go-wit-gui
|
||||||
|
Maintainer: Jeff Carr <jcarr@wit.com>
|
||||||
|
Architecture: amd64
|
||||||
|
Depends:
|
||||||
|
Recommends: libgtk-3-0
|
||||||
|
Description: a abstraction layer for Go visual elements (GTK, QT, etc)
|
||||||
|
Package gui implements a abstraction layer for Go visual elements.
|
||||||
|
|
@ -0,0 +1 @@
|
||||||
|
#!/bin/sh
|
||||||
36
draw.go
36
draw.go
|
|
@ -1,36 +0,0 @@
|
||||||
// This creates a simple hello world window
|
|
||||||
package linuxstatus
|
|
||||||
|
|
||||||
import (
|
|
||||||
"go.wit.com/lib/gadgets"
|
|
||||||
)
|
|
||||||
|
|
||||||
// creates the actual widgets.
|
|
||||||
// it's assumed you are always passing in a box
|
|
||||||
func draw(ls *LinuxStatus) {
|
|
||||||
ls.group = ls.window.Box().NewGroup("What Linux Knows It Is")
|
|
||||||
|
|
||||||
ls.grid = ls.group.NewGrid("gridnuts", 2, 2)
|
|
||||||
|
|
||||||
ls.hostnameStatus = gadgets.NewOneLiner(ls.grid, "status")
|
|
||||||
ls.hostname = gadgets.NewOneLiner(ls.grid, "hostname -f")
|
|
||||||
ls.hostshort = gadgets.NewOneLiner(ls.grid, "hostname -s")
|
|
||||||
ls.domainname = gadgets.NewOneLiner(ls.grid, "domain name")
|
|
||||||
ls.resolver = gadgets.NewOneLiner(ls.grid, "nameservers =")
|
|
||||||
ls.resolver.SetText("TODO")
|
|
||||||
ls.uid = gadgets.NewOneLiner(ls.grid, "UID =")
|
|
||||||
ls.IPv4 = gadgets.NewOneLiner(ls.grid, "Current IPv4 =")
|
|
||||||
ls.IPv6 = gadgets.NewOneLiner(ls.grid, "Current IPv6 =")
|
|
||||||
ls.workingIPv4 = gadgets.NewOneLiner(ls.grid, "Real IPv4 =")
|
|
||||||
ls.workingIPv6 = gadgets.NewOneLiner(ls.grid, "Real IPv6 =")
|
|
||||||
// ls.nics = gadgets.NewOneLiner(ls.grid, "network intefaces =")
|
|
||||||
|
|
||||||
ls.grid.NewLabel("interfaces =")
|
|
||||||
ls.Interfaces = ls.grid.NewCombobox()
|
|
||||||
|
|
||||||
ls.speed = gadgets.NewOneLiner(ls.grid, "refresh speed =")
|
|
||||||
ls.speedActual = gadgets.NewOneLiner(ls.grid, "refresh speed =")
|
|
||||||
|
|
||||||
ls.grid.Margin()
|
|
||||||
ls.grid.Pad()
|
|
||||||
}
|
|
||||||
195
hostname.go
195
hostname.go
|
|
@ -1,195 +0,0 @@
|
||||||
// figures out if your hostname is valid
|
|
||||||
// then checks if your DNS is setup correctly
|
|
||||||
package linuxstatus
|
|
||||||
|
|
||||||
import (
|
|
||||||
"fmt"
|
|
||||||
"io/ioutil"
|
|
||||||
"strings"
|
|
||||||
|
|
||||||
"go.wit.com/lib/gui/shell"
|
|
||||||
"go.wit.com/log"
|
|
||||||
|
|
||||||
// will try to get this hosts FQDN
|
|
||||||
"github.com/Showmax/go-fqdn"
|
|
||||||
)
|
|
||||||
|
|
||||||
func (ls *LinuxStatus) GetDomainName() string {
|
|
||||||
if !me.Ready() {
|
|
||||||
return ""
|
|
||||||
}
|
|
||||||
return me.domainname.String()
|
|
||||||
}
|
|
||||||
|
|
||||||
func (ls *LinuxStatus) setDomainName() {
|
|
||||||
if !me.Ready() {
|
|
||||||
return
|
|
||||||
}
|
|
||||||
|
|
||||||
dn := run("domainname")
|
|
||||||
if me.domainname.String() != dn {
|
|
||||||
log.Log(CHANGE, "domainname has changed from", me.GetDomainName(), "to", dn)
|
|
||||||
me.domainname.SetText(dn)
|
|
||||||
me.changed = true
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
func (ls *LinuxStatus) GetHostname() string {
|
|
||||||
if !me.Ready() {
|
|
||||||
return ""
|
|
||||||
}
|
|
||||||
return me.hostname.String()
|
|
||||||
}
|
|
||||||
|
|
||||||
func (ls *LinuxStatus) ValidHostname() bool {
|
|
||||||
if !me.Ready() {
|
|
||||||
log.Info("ValidHostname() not ready")
|
|
||||||
return false
|
|
||||||
}
|
|
||||||
if me.hostnameStatus.String() == "WORKING" {
|
|
||||||
return true
|
|
||||||
}
|
|
||||||
return false
|
|
||||||
}
|
|
||||||
|
|
||||||
func (ls *LinuxStatus) setHostname(newname string) {
|
|
||||||
if !me.Ready() {
|
|
||||||
return
|
|
||||||
}
|
|
||||||
if newname == me.hostname.String() {
|
|
||||||
return
|
|
||||||
}
|
|
||||||
log.Log(CHANGE, "hostname has changed from", me.GetHostname(), "to", newname)
|
|
||||||
me.hostname.SetText(newname)
|
|
||||||
me.changed = true
|
|
||||||
}
|
|
||||||
|
|
||||||
func (ls *LinuxStatus) GetHostShort() string {
|
|
||||||
if !me.Ready() {
|
|
||||||
return ""
|
|
||||||
}
|
|
||||||
return me.hostshort.String()
|
|
||||||
}
|
|
||||||
|
|
||||||
func (ls *LinuxStatus) setHostShort() {
|
|
||||||
if !me.Ready() {
|
|
||||||
return
|
|
||||||
}
|
|
||||||
hshort := run("hostname -s")
|
|
||||||
if me.hostshort.String() != hshort {
|
|
||||||
log.Log(CHANGE, "hostname -s has changed from", me.hostshort.String(), "to", hshort)
|
|
||||||
me.hostshort.SetText(hshort)
|
|
||||||
me.changed = true
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
// getDomainName extracts the domain name from a given hostname
|
|
||||||
func getDomainName(hostname string) (string, error) {
|
|
||||||
parts := strings.Split(hostname, ".")
|
|
||||||
if len(parts) < 3 {
|
|
||||||
return "", fmt.Errorf("hostname '%s' is too short to extract a domain name", hostname)
|
|
||||||
}
|
|
||||||
// Join all parts except the first one, which is assumed to be a subdomain
|
|
||||||
domain := strings.Join(parts[1:], ".")
|
|
||||||
return domain, nil
|
|
||||||
}
|
|
||||||
|
|
||||||
func lookupHostname() {
|
|
||||||
if !me.Ready() {
|
|
||||||
return
|
|
||||||
}
|
|
||||||
var err error
|
|
||||||
var hostfqdn string = "broken"
|
|
||||||
hostfqdn, err = fqdn.FqdnHostname()
|
|
||||||
if err != nil {
|
|
||||||
log.Error(err, "FQDN hostname error")
|
|
||||||
return
|
|
||||||
}
|
|
||||||
log.Log(NET, "full hostname should be: ", hostfqdn)
|
|
||||||
|
|
||||||
me.setDomainName()
|
|
||||||
me.setHostShort()
|
|
||||||
|
|
||||||
// these are authoritative
|
|
||||||
// if they work wrong, your linux configuration is wrong.
|
|
||||||
// Do not complain.
|
|
||||||
// Fix your distro if your box is otherwise not working this way
|
|
||||||
hshort := me.GetHostShort() // from `hostname -s`
|
|
||||||
dn := me.GetDomainName() // from `domanname`
|
|
||||||
hostname := me.GetHostname() // from `hostname -f`
|
|
||||||
|
|
||||||
if hostfqdn != hostname {
|
|
||||||
log.Log(WARN, "hostname", hostname, "does not equal fqdn.FqdnHostname()", hostfqdn)
|
|
||||||
// TODO: figure out what is wrong
|
|
||||||
if dn == "(none)" {
|
|
||||||
realdn, err := getDomainName(hostfqdn)
|
|
||||||
if err == nil {
|
|
||||||
log.Log(WARN, "need to run: 'domainname", realdn, "' here")
|
|
||||||
me.changed = true
|
|
||||||
me.hostnameStatus.SetText("FIXING")
|
|
||||||
shell.Run([]string{"domainname", realdn})
|
|
||||||
return
|
|
||||||
} else {
|
|
||||||
log.Log(WARN, "getDomainName() err =", err)
|
|
||||||
log.Log(WARN, "/etc/hostname is too short. let the user set the name here.")
|
|
||||||
// me.changed = true
|
|
||||||
me.hostnameStatus.SetText("INVALID DOMAIN NAME")
|
|
||||||
// return
|
|
||||||
}
|
|
||||||
}
|
|
||||||
log.Log(WARN, "don't know what to do here with domainname")
|
|
||||||
log.Log(WARN, "check that /etc/hostname is valid?")
|
|
||||||
// me.changed = true
|
|
||||||
me.hostnameStatus.SetText("UNKNOWN")
|
|
||||||
// return
|
|
||||||
}
|
|
||||||
|
|
||||||
var test string
|
|
||||||
test = hshort + "." + dn
|
|
||||||
|
|
||||||
me.setHostname(test)
|
|
||||||
|
|
||||||
if hostname != test {
|
|
||||||
log.Log(CHANGE, "hostname", hostname, "does not equal", test)
|
|
||||||
if me.hostnameStatus.String() != "BROKEN" {
|
|
||||||
log.Log(CHANGE, "hostname", hostname, "does not equal", test)
|
|
||||||
me.changed = true
|
|
||||||
me.hostnameStatus.SetText("BROKEN")
|
|
||||||
}
|
|
||||||
} else {
|
|
||||||
if me.hostnameStatus.String() != "WORKING" {
|
|
||||||
log.Log(CHANGE, "hostname", hostname, "is valid")
|
|
||||||
me.hostnameStatus.SetText("WORKING")
|
|
||||||
me.changed = true
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
// returns true if the hostname is good
|
|
||||||
// check that all the OS settings are correct here
|
|
||||||
// On Linux, /etc/hosts, /etc/hostname
|
|
||||||
//
|
|
||||||
// and domainname and hostname
|
|
||||||
func goodHostname() bool {
|
|
||||||
content, err := ioutil.ReadFile("/etc/hostname")
|
|
||||||
if err != nil {
|
|
||||||
// this needs to be a fixWindow() error
|
|
||||||
log.Error(err)
|
|
||||||
}
|
|
||||||
|
|
||||||
hostname := string(content)
|
|
||||||
|
|
||||||
log.Log(NOW, "hostname =", hostname)
|
|
||||||
|
|
||||||
hs := run("hostname -s")
|
|
||||||
dn := run("domainname")
|
|
||||||
log.Log(NOW, "hostname short =", hs, "domainname =", dn)
|
|
||||||
|
|
||||||
tmp := hs + "." + dn
|
|
||||||
if hostname == tmp {
|
|
||||||
log.Log(NOW, "hostname seems to be good", hostname)
|
|
||||||
return true
|
|
||||||
}
|
|
||||||
|
|
||||||
return false
|
|
||||||
}
|
|
||||||
99
linuxloop.go
99
linuxloop.go
|
|
@ -1,99 +0,0 @@
|
||||||
// GNU GENERAL PUBLIC LICENSE Version 3, 29 June 2007
|
|
||||||
// Copyright (c) 2023 WIT.COM, Inc.
|
|
||||||
|
|
||||||
// This is a control panel for DNS
|
|
||||||
|
|
||||||
// This is the main Linux kernel / OS code
|
|
||||||
// to check your network settings are correct
|
|
||||||
// This does (and should do) no network or external checking
|
|
||||||
// This is just the state of your OS
|
|
||||||
|
|
||||||
package linuxstatus
|
|
||||||
|
|
||||||
import (
|
|
||||||
"io/ioutil"
|
|
||||||
"os"
|
|
||||||
"os/user"
|
|
||||||
"sort"
|
|
||||||
"strconv"
|
|
||||||
"strings"
|
|
||||||
|
|
||||||
"go.wit.com/log"
|
|
||||||
)
|
|
||||||
|
|
||||||
func linuxLoop() {
|
|
||||||
me.changed = false
|
|
||||||
|
|
||||||
// checks for a VALID hostname
|
|
||||||
lookupHostname()
|
|
||||||
if me.changed {
|
|
||||||
log.Log(CHANGE, "lookupHostname() detected a change")
|
|
||||||
}
|
|
||||||
|
|
||||||
// scans the linux network intefaces for your available IPv4 & IPv6 addresses
|
|
||||||
scanInterfaces()
|
|
||||||
if me.changed {
|
|
||||||
log.Log(CHANGE, "scanInterfaces() detected a change")
|
|
||||||
}
|
|
||||||
for i, t := range me.ifmap {
|
|
||||||
log.Log(NET, strconv.Itoa(i)+" iface = "+t.iface.Name)
|
|
||||||
}
|
|
||||||
|
|
||||||
// get all the real A records from all the network interfaces linux can see
|
|
||||||
a := realA()
|
|
||||||
sort.Strings(a)
|
|
||||||
tmp := strings.Join(a, "\n")
|
|
||||||
if tmp != me.workingIPv4.String() {
|
|
||||||
log.Log(CHANGE, "realA() your real IPv6 addresses changed")
|
|
||||||
me.changed = true
|
|
||||||
me.workingIPv4.SetText(tmp)
|
|
||||||
}
|
|
||||||
|
|
||||||
// get all the real AAAA records from all the network interfaces linux can see
|
|
||||||
aaaa := realAAAA()
|
|
||||||
sort.Strings(aaaa)
|
|
||||||
tmp = strings.Join(aaaa, "\n")
|
|
||||||
if tmp != me.workingIPv6.String() {
|
|
||||||
log.Log(CHANGE, "realAAAA() your real IPv6 addresses changed")
|
|
||||||
me.changed = true
|
|
||||||
me.workingIPv6.SetText(tmp)
|
|
||||||
}
|
|
||||||
|
|
||||||
user, _ := user.Current()
|
|
||||||
tmp = user.Username + " (" + strconv.Itoa(os.Getuid()) + ")"
|
|
||||||
if tmp != me.uid.String() {
|
|
||||||
log.Log(CHANGE, "os.Getuid =", user.Username, os.Getuid())
|
|
||||||
me.changed = true
|
|
||||||
me.uid.SetText(tmp)
|
|
||||||
}
|
|
||||||
|
|
||||||
content, _ := ioutil.ReadFile("/etc/resolv.conf")
|
|
||||||
var ns []string
|
|
||||||
for _, line := range strings.Split(string(content), "\n") {
|
|
||||||
parts := strings.Split(line, " ")
|
|
||||||
if len(parts) > 1 {
|
|
||||||
if parts[0] == "nameserver" {
|
|
||||||
ns = append(ns, parts[1])
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
sort.Strings(ns)
|
|
||||||
newNS := strings.Join(ns, "\n")
|
|
||||||
if newNS != me.resolver.String() {
|
|
||||||
log.Log(CHANGE, "resolver changed in /etc/resolv.conf to", ns)
|
|
||||||
me.changed = true
|
|
||||||
me.resolver.SetText(newNS)
|
|
||||||
}
|
|
||||||
|
|
||||||
/*
|
|
||||||
processName := getProcessNameByPort(53)
|
|
||||||
fmt.Println("Process with port 53:", processName)
|
|
||||||
|
|
||||||
commPath := filepath.Join("/proc", proc.Name(), "comm")
|
|
||||||
comm, err := ioutil.ReadFile(commPath)
|
|
||||||
if err != nil {
|
|
||||||
return "", err // Error reading the process name
|
|
||||||
}
|
|
||||||
return strings.TrimSpace(string(comm)), nil
|
|
||||||
*/
|
|
||||||
}
|
|
||||||
295
net.go
295
net.go
|
|
@ -1,295 +0,0 @@
|
||||||
// This creates a simple hello world window
|
|
||||||
package linuxstatus
|
|
||||||
|
|
||||||
import (
|
|
||||||
// "log"
|
|
||||||
"net"
|
|
||||||
"sort"
|
|
||||||
"strings"
|
|
||||||
|
|
||||||
"go.wit.com/log"
|
|
||||||
)
|
|
||||||
|
|
||||||
func IsIPv6(address string) bool {
|
|
||||||
return strings.Count(address, ":") >= 2
|
|
||||||
}
|
|
||||||
|
|
||||||
func (t *IPtype) IsReal() bool {
|
|
||||||
if t.ip.IsPrivate() || t.ip.IsLoopback() || t.ip.IsLinkLocalUnicast() {
|
|
||||||
log.Log(NET, "\t\tIP is Real = false")
|
|
||||||
return false
|
|
||||||
} else {
|
|
||||||
log.Log(NET, "\t\tIP is Real = true")
|
|
||||||
return true
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
func IsReal(ip *net.IP) bool {
|
|
||||||
if ip.IsPrivate() || ip.IsLoopback() || ip.IsLinkLocalUnicast() {
|
|
||||||
log.Log(NET, "\t\tIP is Real = false")
|
|
||||||
return false
|
|
||||||
} else {
|
|
||||||
log.Log(NET, "\t\tIP is Real = true")
|
|
||||||
return true
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
func renameInterface(i *net.Interface) {
|
|
||||||
/*
|
|
||||||
/sbin/ip link set eth1 down
|
|
||||||
/sbin/ip link set eth1 name eth123
|
|
||||||
/sbin/ip link set eth123 up
|
|
||||||
*/
|
|
||||||
}
|
|
||||||
|
|
||||||
// Will figure out if an interface was just added
|
|
||||||
func checkInterface(i net.Interface) {
|
|
||||||
val, ok := me.ifmap[i.Index]
|
|
||||||
if !ok {
|
|
||||||
log.Log(INFO, i.Name, "is a new network interface. The linux kernel index =", i.Index)
|
|
||||||
me.ifmap[i.Index] = new(IFtype)
|
|
||||||
me.ifmap[i.Index].gone = false
|
|
||||||
me.ifmap[i.Index].iface = &i
|
|
||||||
me.changed = true
|
|
||||||
if me.Interfaces != nil {
|
|
||||||
me.Interfaces.AddText(i.Name)
|
|
||||||
me.Interfaces.SetText(i.Name)
|
|
||||||
}
|
|
||||||
return
|
|
||||||
}
|
|
||||||
me.ifmap[i.Index].gone = false
|
|
||||||
log.Log(NET, "me.ifmap[i] does exist. Need to compare everything.", i.Index, i.Name, val.iface.Index, val.iface.Name)
|
|
||||||
if val.iface.Name != i.Name {
|
|
||||||
log.Log(INFO, val.iface.Name, "has changed to it's name to", i.Name)
|
|
||||||
me.ifmap[i.Index].iface = &i
|
|
||||||
me.changed = true
|
|
||||||
if me.Interfaces != nil {
|
|
||||||
me.Interfaces.AddText(i.Name)
|
|
||||||
me.Interfaces.SetText(i.Name)
|
|
||||||
}
|
|
||||||
return
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/*
|
|
||||||
These are the real IP address you have been
|
|
||||||
given from DHCP
|
|
||||||
*/
|
|
||||||
func realAAAA() []string {
|
|
||||||
var aaaa []string
|
|
||||||
|
|
||||||
for s, t := range me.ipmap {
|
|
||||||
if t.IsReal() {
|
|
||||||
if t.ipv6 {
|
|
||||||
aaaa = append(aaaa, s)
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
return aaaa
|
|
||||||
}
|
|
||||||
|
|
||||||
func realA() []string {
|
|
||||||
var a []string
|
|
||||||
|
|
||||||
for s, t := range me.ipmap {
|
|
||||||
if t.IsReal() {
|
|
||||||
if t.ipv4 {
|
|
||||||
a = append(a, s)
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
return a
|
|
||||||
}
|
|
||||||
|
|
||||||
func checkDNSOld() (map[string]*IPtype, map[string]*IPtype) {
|
|
||||||
var ipv4s map[string]*IPtype
|
|
||||||
var ipv6s map[string]*IPtype
|
|
||||||
|
|
||||||
ipv4s = make(map[string]*IPtype)
|
|
||||||
ipv6s = make(map[string]*IPtype)
|
|
||||||
|
|
||||||
for s, t := range me.ipmap {
|
|
||||||
i := t.iface
|
|
||||||
ipt := "IPv4"
|
|
||||||
if t.ipv6 {
|
|
||||||
ipt = "IPv6"
|
|
||||||
}
|
|
||||||
if t.IsReal() {
|
|
||||||
log.Log(INFO, "\tIP is Real ", ipt, i.Index, i.Name, s)
|
|
||||||
if t.ipv6 {
|
|
||||||
ipv6s[s] = t
|
|
||||||
} else {
|
|
||||||
ipv4s[s] = t
|
|
||||||
}
|
|
||||||
} else {
|
|
||||||
log.Log(INFO, "\tIP is not Real", ipt, i.Index, i.Name, s)
|
|
||||||
}
|
|
||||||
}
|
|
||||||
return ipv6s, ipv4s
|
|
||||||
}
|
|
||||||
|
|
||||||
// Will figure out if an IP address is new
|
|
||||||
func checkIP(ip *net.IPNet, i net.Interface) bool {
|
|
||||||
log.Log(NET, "\t\taddr.(type) = *net.IPNet")
|
|
||||||
log.Log(NET, "\t\taddr.(type) =", ip)
|
|
||||||
var realip string
|
|
||||||
realip = ip.IP.String()
|
|
||||||
|
|
||||||
val, ok := me.ipmap[realip]
|
|
||||||
if ok {
|
|
||||||
log.Log(NET, val.ipnet.IP.String(), "is already a defined IP address")
|
|
||||||
me.ipmap[realip].gone = false
|
|
||||||
return false
|
|
||||||
}
|
|
||||||
|
|
||||||
me.ipmap[realip] = new(IPtype)
|
|
||||||
me.ipmap[realip].gone = false
|
|
||||||
me.ipmap[realip].ipv4 = true
|
|
||||||
me.ipmap[realip].ipnet = ip
|
|
||||||
me.ipmap[realip].ip = ip.IP
|
|
||||||
me.ipmap[realip].iface = &i
|
|
||||||
t := "IPv4"
|
|
||||||
if IsIPv6(ip.String()) {
|
|
||||||
me.ipmap[realip].ipv6 = true
|
|
||||||
me.ipmap[realip].ipv4 = false
|
|
||||||
t = "IPv6"
|
|
||||||
if me.IPv6 != nil {
|
|
||||||
me.IPv6.SetText(realip)
|
|
||||||
}
|
|
||||||
} else {
|
|
||||||
me.ipmap[realip].ipv6 = false
|
|
||||||
me.ipmap[realip].ipv4 = true
|
|
||||||
if me.IPv4 != nil {
|
|
||||||
me.IPv4.SetText(realip)
|
|
||||||
}
|
|
||||||
}
|
|
||||||
if IsReal(&ip.IP) {
|
|
||||||
log.Log(INFO, "\tIP is Real ", t, i.Index, i.Name, realip)
|
|
||||||
} else {
|
|
||||||
log.Log(INFO, "\tIP is not Real", t, i.Index, i.Name, realip)
|
|
||||||
}
|
|
||||||
log.Log(NET, "\t\tIP is IsPrivate() =", ip.IP.IsPrivate())
|
|
||||||
log.Log(NET, "\t\tIP is IsLoopback() =", ip.IP.IsLoopback())
|
|
||||||
log.Log(NET, "\t\tIP is IsLinkLocalUnicast() =", ip.IP.IsLinkLocalUnicast())
|
|
||||||
// log.Log(INFO, "HERE HERE", "realip =", realip, "me.ip[realip]=", me.ipmap[realip])
|
|
||||||
return true
|
|
||||||
}
|
|
||||||
|
|
||||||
func scanInterfaces() {
|
|
||||||
log.Log(NET, "scanInterfaces() START")
|
|
||||||
ifaces, _ := net.Interfaces()
|
|
||||||
// me.ifnew = ifaces
|
|
||||||
log.Log(NET, SPEW, ifaces)
|
|
||||||
for _, i := range ifaces {
|
|
||||||
addrs, _ := i.Addrs()
|
|
||||||
// log.Log(INFO, "range ifaces = ", i)
|
|
||||||
checkInterface(i)
|
|
||||||
log.Log(NET, "*net.Interface.Name = ", i.Name, i.Index)
|
|
||||||
log.Log(NET, SPEW, i)
|
|
||||||
log.Log(NET, SPEW, addrs)
|
|
||||||
for _, addr := range addrs {
|
|
||||||
log.Log(NET, "\taddr =", addr)
|
|
||||||
log.Log(NET, SPEW, addrs)
|
|
||||||
ips, _ := net.LookupIP(addr.String())
|
|
||||||
log.Log(NET, "\tLookupIP(addr) =", ips)
|
|
||||||
switch v := addr.(type) {
|
|
||||||
case *net.IPNet:
|
|
||||||
if checkIP(v, i) {
|
|
||||||
log.Log(NET, "scanInterfaces() IP is new () i =", v.IP.String())
|
|
||||||
}
|
|
||||||
default:
|
|
||||||
log.Log(NET, "\t\taddr.(type) = NO IDEA WHAT TO DO HERE v =", v)
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
if deleteChanges() {
|
|
||||||
me.changed = true
|
|
||||||
log.Log(NET, "deleteChanges() detected network changes")
|
|
||||||
}
|
|
||||||
updateRealAAAA()
|
|
||||||
log.Log(NET, "scanInterfaces() END")
|
|
||||||
}
|
|
||||||
|
|
||||||
// displays the IP address found on your network interfaces
|
|
||||||
func updateRealAAAA() {
|
|
||||||
var all4 []string
|
|
||||||
var all6 []string
|
|
||||||
for s, t := range me.ipmap {
|
|
||||||
if t.ipv4 {
|
|
||||||
all4 = append(all4, s)
|
|
||||||
log.Log(NET, "IPv4 =", s)
|
|
||||||
} else if t.ipv6 {
|
|
||||||
all6 = append(all6, s)
|
|
||||||
log.Log(NET, "IPv6 =", s)
|
|
||||||
} else {
|
|
||||||
log.Log(NET, "???? =", s)
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
// sort and create text
|
|
||||||
sort.Strings(all4)
|
|
||||||
sort.Strings(all6)
|
|
||||||
s4 := strings.Join(all4, "\n")
|
|
||||||
s6 := strings.Join(all6, "\n")
|
|
||||||
|
|
||||||
if me.IPv4.String() != s4 {
|
|
||||||
log.Log(CHANGE, "IPv4 addresses have changed", s4)
|
|
||||||
me.IPv4.SetText(s4)
|
|
||||||
me.changed = true
|
|
||||||
}
|
|
||||||
if me.IPv6.String() != s6 {
|
|
||||||
log.Log(CHANGE, "IPv6 addresses have changed", s6)
|
|
||||||
me.IPv6.SetText(s6)
|
|
||||||
me.changed = true
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
// delete network interfaces and ip addresses from the gui
|
|
||||||
func deleteChanges() bool {
|
|
||||||
var changed bool = false
|
|
||||||
for i, t := range me.ifmap {
|
|
||||||
if t.gone {
|
|
||||||
log.Log(CHANGE, "DELETE int =", i, "name =", t.name, t.iface)
|
|
||||||
delete(me.ifmap, i)
|
|
||||||
changed = true
|
|
||||||
}
|
|
||||||
t.gone = true
|
|
||||||
}
|
|
||||||
for s, t := range me.ipmap {
|
|
||||||
if t.gone {
|
|
||||||
log.Log(CHANGE, "DELETE name =", s, "IPv4 =", t.ipv4)
|
|
||||||
log.Log(CHANGE, "DELETE name =", s, "IPv6 =", t.ipv6)
|
|
||||||
log.Log(CHANGE, "DELETE name =", s, "iface =", t.iface)
|
|
||||||
log.Log(CHANGE, "DELETE name =", s, "ip =", t.ip)
|
|
||||||
delete(me.ipmap, s)
|
|
||||||
changed = true
|
|
||||||
}
|
|
||||||
t.gone = true
|
|
||||||
}
|
|
||||||
|
|
||||||
return changed
|
|
||||||
}
|
|
||||||
|
|
||||||
func (ls *LinuxStatus) GetIPv6() []string {
|
|
||||||
if !me.Ready() {
|
|
||||||
return nil
|
|
||||||
}
|
|
||||||
tmp := me.workingIPv6.String()
|
|
||||||
return strings.Split(tmp, "\n")
|
|
||||||
}
|
|
||||||
|
|
||||||
func (ls *LinuxStatus) GetIPv4() []string {
|
|
||||||
if !me.Ready() {
|
|
||||||
return nil
|
|
||||||
}
|
|
||||||
tmp := me.workingIPv4.String()
|
|
||||||
return strings.Split(tmp, "\n")
|
|
||||||
}
|
|
||||||
|
|
||||||
func (ls *LinuxStatus) GetNameservers() []string {
|
|
||||||
if !me.Ready() {
|
|
||||||
return nil
|
|
||||||
}
|
|
||||||
tmp := me.resolver.String()
|
|
||||||
return strings.Split(tmp, "\n")
|
|
||||||
}
|
|
||||||
29
new.go
29
new.go
|
|
@ -1,29 +0,0 @@
|
||||||
// This creates a simple hello world window
|
|
||||||
package linuxstatus
|
|
||||||
|
|
||||||
import (
|
|
||||||
"go.wit.com/log"
|
|
||||||
|
|
||||||
"go.wit.com/lib/gadgets"
|
|
||||||
)
|
|
||||||
|
|
||||||
func InitLinuxStatus() *LinuxStatus {
|
|
||||||
if me != nil {
|
|
||||||
log.Log(WARN, "You have done New() twice. You can only do this once")
|
|
||||||
return me
|
|
||||||
}
|
|
||||||
me = &LinuxStatus{
|
|
||||||
hidden: true,
|
|
||||||
ready: false,
|
|
||||||
}
|
|
||||||
me.ifmap = make(map[int]*IFtype)
|
|
||||||
me.ipmap = make(map[string]*IPtype)
|
|
||||||
|
|
||||||
log.Log(WARN, "Creating the Window")
|
|
||||||
me.window = gadgets.RawBasicWindow("OS Hostname Details")
|
|
||||||
me.window.Make()
|
|
||||||
draw(me)
|
|
||||||
|
|
||||||
me.ready = true
|
|
||||||
return me
|
|
||||||
}
|
|
||||||
101
proc.go
101
proc.go
|
|
@ -1,101 +0,0 @@
|
||||||
package linuxstatus
|
|
||||||
|
|
||||||
import (
|
|
||||||
"io/ioutil"
|
|
||||||
"os"
|
|
||||||
"path/filepath"
|
|
||||||
"strconv"
|
|
||||||
"strings"
|
|
||||||
|
|
||||||
"go.wit.com/log"
|
|
||||||
)
|
|
||||||
|
|
||||||
func GetProcessNameByPort(port int) string {
|
|
||||||
// Convert port to hex string
|
|
||||||
portHex := strconv.FormatInt(int64(port), 16)
|
|
||||||
|
|
||||||
// Function to search /proc/net/tcp or /proc/net/udp
|
|
||||||
searchProcNet := func(file string) string {
|
|
||||||
data, err := ioutil.ReadFile(file)
|
|
||||||
if err != nil {
|
|
||||||
return ""
|
|
||||||
}
|
|
||||||
// log.Log(PROC, "searchProcNet() data:", string(data))
|
|
||||||
|
|
||||||
lines := strings.Split(string(data), "\n")
|
|
||||||
for _, line := range lines {
|
|
||||||
fields := strings.Fields(line)
|
|
||||||
log.Log(PROC, "searchProcNet() portHex:", portHex)
|
|
||||||
if len(fields) > 9 {
|
|
||||||
log.Log(PROC, "searchProcNet() fields[9]", fields[9])
|
|
||||||
}
|
|
||||||
log.Log(PROC, "searchProcNet() lines:", line)
|
|
||||||
if len(fields) > 1 {
|
|
||||||
parts := strings.Split(fields[1], ":")
|
|
||||||
if len(parts) > 1 {
|
|
||||||
// Convert the hexadecimal string to an integer
|
|
||||||
value, _ := strconv.ParseInt(parts[1], 16, 64)
|
|
||||||
log.Log(PROC, "searchProcNet() value, port =", value, port, "parts[1] =", parts[1])
|
|
||||||
if port == int(value) {
|
|
||||||
log.Log(PROC, "searchProcNet() THIS IS THE LINE:", fields)
|
|
||||||
return fields[9]
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
return ""
|
|
||||||
}
|
|
||||||
|
|
||||||
// Search TCP and then UDP
|
|
||||||
inode := searchProcNet("/proc/net/tcp")
|
|
||||||
if inode == "" {
|
|
||||||
inode = searchProcNet("/proc/net/udp")
|
|
||||||
}
|
|
||||||
log.Log(PROC, "searchProcNet() inode =", inode)
|
|
||||||
|
|
||||||
// Search for process with the inode
|
|
||||||
procs, _ := ioutil.ReadDir("/proc")
|
|
||||||
for _, proc := range procs {
|
|
||||||
if !proc.IsDir() {
|
|
||||||
continue
|
|
||||||
}
|
|
||||||
|
|
||||||
fdPath := filepath.Join("/proc", proc.Name(), "fd")
|
|
||||||
fds, err := ioutil.ReadDir(fdPath)
|
|
||||||
if err != nil {
|
|
||||||
continue // Process might have exited; skip it
|
|
||||||
}
|
|
||||||
|
|
||||||
for _, fd := range fds {
|
|
||||||
fdLink, _ := os.Readlink(filepath.Join(fdPath, fd.Name()))
|
|
||||||
var s string
|
|
||||||
s = "socket:[" + inode + "]"
|
|
||||||
if strings.Contains(fdLink, "socket:[") {
|
|
||||||
log.Log(PROC, "searchProcNet() fdLink has socket:", fdLink)
|
|
||||||
log.Log(PROC, "searchProcNet() proc.Name() =", proc.Name(), "s =", s)
|
|
||||||
}
|
|
||||||
if strings.Contains(fdLink, "socket:[35452]") {
|
|
||||||
log.Log(PROC, "searchProcNet() found proc.Name() =", proc.Name(), fdLink)
|
|
||||||
return proc.Name()
|
|
||||||
}
|
|
||||||
if strings.Contains(fdLink, "socket:[35450]") {
|
|
||||||
log.Log(PROC, "searchProcNet() found proc.Name() =", proc.Name(), fdLink)
|
|
||||||
return proc.Name()
|
|
||||||
}
|
|
||||||
if strings.Contains(fdLink, "socket:[35440]") {
|
|
||||||
log.Log(PROC, "searchProcNet() found proc.Name() =", proc.Name(), fdLink)
|
|
||||||
return proc.Name()
|
|
||||||
}
|
|
||||||
if strings.Contains(fdLink, "socket:[21303]") {
|
|
||||||
log.Log(PROC, "searchProcNet() found proc.Name() =", proc.Name(), fdLink)
|
|
||||||
// return proc.Name()
|
|
||||||
}
|
|
||||||
if strings.Contains(fdLink, "socket:["+inode+"]") {
|
|
||||||
return proc.Name()
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
return ""
|
|
||||||
}
|
|
||||||
61
structs.go
61
structs.go
|
|
@ -1,61 +0,0 @@
|
||||||
/*
|
|
||||||
figures out if your hostname is valid
|
|
||||||
then checks if your DNS is setup correctly
|
|
||||||
*/
|
|
||||||
|
|
||||||
package linuxstatus
|
|
||||||
|
|
||||||
import (
|
|
||||||
"net"
|
|
||||||
|
|
||||||
"go.wit.com/gui"
|
|
||||||
"go.wit.com/lib/gadgets"
|
|
||||||
)
|
|
||||||
|
|
||||||
var me *LinuxStatus
|
|
||||||
|
|
||||||
type LinuxStatus struct {
|
|
||||||
ready bool
|
|
||||||
hidden bool
|
|
||||||
changed bool
|
|
||||||
|
|
||||||
parent *gui.Node
|
|
||||||
|
|
||||||
ifmap map[int]*IFtype // the current interfaces
|
|
||||||
ipmap map[string]*IPtype // the current ip addresses
|
|
||||||
|
|
||||||
window *gadgets.BasicWindow
|
|
||||||
group *gui.Node
|
|
||||||
grid *gui.Node
|
|
||||||
|
|
||||||
hostnameStatus *gadgets.OneLiner
|
|
||||||
hostname *gadgets.OneLiner
|
|
||||||
hostshort *gadgets.OneLiner
|
|
||||||
domainname *gadgets.OneLiner
|
|
||||||
resolver *gadgets.OneLiner
|
|
||||||
uid *gadgets.OneLiner
|
|
||||||
IPv4 *gadgets.OneLiner
|
|
||||||
IPv6 *gadgets.OneLiner
|
|
||||||
workingIPv4 *gadgets.OneLiner
|
|
||||||
workingIPv6 *gadgets.OneLiner
|
|
||||||
Interfaces *gui.Node
|
|
||||||
speed *gadgets.OneLiner
|
|
||||||
speedActual *gadgets.OneLiner
|
|
||||||
}
|
|
||||||
|
|
||||||
type IPtype struct {
|
|
||||||
gone bool // used to track if the ip exists
|
|
||||||
ipv6 bool // the future
|
|
||||||
ipv4 bool // the past
|
|
||||||
LinkLocal bool
|
|
||||||
iface *net.Interface
|
|
||||||
ip net.IP
|
|
||||||
ipnet *net.IPNet
|
|
||||||
}
|
|
||||||
|
|
||||||
type IFtype struct {
|
|
||||||
gone bool // used to track if the interface exists
|
|
||||||
name string // just a shortcut to the name. maybe this is dumb
|
|
||||||
// up bool // could be used to track ifup/ifdown
|
|
||||||
iface *net.Interface
|
|
||||||
}
|
|
||||||
38
timer.go
38
timer.go
|
|
@ -1,38 +0,0 @@
|
||||||
package linuxstatus
|
|
||||||
|
|
||||||
import (
|
|
||||||
"sort"
|
|
||||||
"strings"
|
|
||||||
"time"
|
|
||||||
)
|
|
||||||
|
|
||||||
// timeFunction takes a function as an argument and returns the execution time.
|
|
||||||
func timeFunction(f func()) time.Duration {
|
|
||||||
startTime := time.Now() // Record the start time
|
|
||||||
f() // Execute the function
|
|
||||||
return time.Since(startTime) // Calculate the elapsed time
|
|
||||||
}
|
|
||||||
|
|
||||||
// sortLines takes a string, splits it on newlines, sorts the lines,
|
|
||||||
// and rejoins them with newlines.
|
|
||||||
func sortLines(input string) string {
|
|
||||||
lines := strings.Split(input, "\n")
|
|
||||||
|
|
||||||
// Trim leading and trailing whitespace from each line
|
|
||||||
for i, line := range lines {
|
|
||||||
lines[i] = strings.TrimSpace(line)
|
|
||||||
}
|
|
||||||
|
|
||||||
sort.Strings(lines)
|
|
||||||
tmp := strings.Join(lines, "\n")
|
|
||||||
tmp = strings.TrimLeft(tmp, "\n")
|
|
||||||
tmp = strings.TrimRight(tmp, "\n")
|
|
||||||
return tmp
|
|
||||||
}
|
|
||||||
|
|
||||||
func (ls *LinuxStatus) SetSpeedActual(s string) {
|
|
||||||
if !ls.Ready() {
|
|
||||||
return
|
|
||||||
}
|
|
||||||
ls.speedActual.SetText(s)
|
|
||||||
}
|
|
||||||
63
unix.go
63
unix.go
|
|
@ -2,17 +2,15 @@
|
||||||
|
|
||||||
// https://wiki.archlinux.org/title/Dynamic_DNS
|
// https://wiki.archlinux.org/title/Dynamic_DNS
|
||||||
|
|
||||||
package linuxstatus
|
package main
|
||||||
|
|
||||||
import (
|
import (
|
||||||
"bytes"
|
|
||||||
"fmt"
|
|
||||||
"net"
|
|
||||||
"os"
|
"os"
|
||||||
"os/exec"
|
"os/exec"
|
||||||
"strings"
|
"log"
|
||||||
|
"net"
|
||||||
"go.wit.com/log"
|
// "git.wit.org/wit/gui"
|
||||||
|
// "github.com/davecgh/go-spew/spew"
|
||||||
)
|
)
|
||||||
|
|
||||||
func CheckSuperuser() bool {
|
func CheckSuperuser() bool {
|
||||||
|
|
@ -21,21 +19,20 @@ func CheckSuperuser() bool {
|
||||||
|
|
||||||
func Escalate() {
|
func Escalate() {
|
||||||
if os.Getuid() != 0 {
|
if os.Getuid() != 0 {
|
||||||
cmd := exec.Command("sudo", "./control-panel-dns") // TODO: get the actual path
|
cmd := exec.Command("sudo", "./control-panel-dns")
|
||||||
cmd.Stdin = os.Stdin
|
cmd.Stdin = os.Stdin
|
||||||
cmd.Stdout = os.Stdout
|
cmd.Stdout = os.Stdout
|
||||||
cmd.Stderr = os.Stderr
|
cmd.Stderr = os.Stderr
|
||||||
err := cmd.Run()
|
err := cmd.Run()
|
||||||
if err != nil {
|
if err != nil {
|
||||||
log.Error(err, "exit in Escalate()")
|
log.Fatal(err)
|
||||||
log.Exit(err)
|
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
// You need permission to do a zone transfer. Otherwise:
|
// You need permission to do a zone transfer. Otherwise:
|
||||||
// dig +noall +answer +multiline lab.wit.com any
|
// dig +noall +answer +multiline lab.wit.org any
|
||||||
// dig +all +multiline fire.lab.wit.com # gives the zonefile header (ttl vals)
|
// dig +all +multiline fire.lab.wit.org # gives the zonefile header (ttl vals)
|
||||||
func DumpPublicDNSZone(zone string) {
|
func DumpPublicDNSZone(zone string) {
|
||||||
entries, err := net.LookupHost(zone)
|
entries, err := net.LookupHost(zone)
|
||||||
if err != nil {
|
if err != nil {
|
||||||
|
|
@ -49,49 +46,9 @@ func DumpPublicDNSZone(zone string) {
|
||||||
func dumpIPs(host string) {
|
func dumpIPs(host string) {
|
||||||
ips, err := net.LookupIP(host)
|
ips, err := net.LookupIP(host)
|
||||||
if err != nil {
|
if err != nil {
|
||||||
log.Error(err, "dumpIPs() failed")
|
log.Fatal(err)
|
||||||
}
|
}
|
||||||
for _, ip := range ips {
|
for _, ip := range ips {
|
||||||
log.Println(host, ip)
|
log.Println(host, ip)
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
/*
|
|
||||||
check if ddclient is installed, working, and/or configured
|
|
||||||
https://github.com/ddclient/ddclient
|
|
||||||
*/
|
|
||||||
func ddclient() {
|
|
||||||
}
|
|
||||||
|
|
||||||
/*
|
|
||||||
check if ddupdate is installed, working, and/or configured
|
|
||||||
*/
|
|
||||||
func ddupdate() {
|
|
||||||
}
|
|
||||||
|
|
||||||
func run(s string) string {
|
|
||||||
cmdArgs := strings.Fields(s)
|
|
||||||
// Define the command you want to run
|
|
||||||
// cmd := exec.Command(cmdArgs)
|
|
||||||
cmd := exec.Command(cmdArgs[0], cmdArgs[1:len(cmdArgs)]...)
|
|
||||||
|
|
||||||
// Create a buffer to capture the output
|
|
||||||
var out bytes.Buffer
|
|
||||||
|
|
||||||
// Set the output of the command to the buffer
|
|
||||||
cmd.Stdout = &out
|
|
||||||
|
|
||||||
// Run the command
|
|
||||||
err := cmd.Run()
|
|
||||||
if err != nil {
|
|
||||||
fmt.Println("Error running command:", err)
|
|
||||||
return ""
|
|
||||||
}
|
|
||||||
|
|
||||||
// Trim leading and trailing whitespace from each line
|
|
||||||
tmp := strings.TrimSpace(out.String())
|
|
||||||
// Output the results
|
|
||||||
log.Verbose("Command Output:", tmp)
|
|
||||||
|
|
||||||
return tmp
|
|
||||||
}
|
|
||||||
|
|
|
||||||
43
update.go
43
update.go
|
|
@ -1,43 +0,0 @@
|
||||||
package linuxstatus
|
|
||||||
|
|
||||||
import (
|
|
||||||
"errors"
|
|
||||||
"fmt"
|
|
||||||
"time"
|
|
||||||
|
|
||||||
"go.wit.com/log"
|
|
||||||
)
|
|
||||||
|
|
||||||
func (ls *LinuxStatus) Update() {
|
|
||||||
if ls == nil {
|
|
||||||
return
|
|
||||||
}
|
|
||||||
if !ls.Ready() {
|
|
||||||
log.Log(WARN, "can't update yet. ready is false")
|
|
||||||
log.Error(errors.New("Update() is not ready yet"))
|
|
||||||
return
|
|
||||||
}
|
|
||||||
log.Log(INFO, "Update() START")
|
|
||||||
duration := timeFunction(func() {
|
|
||||||
linuxLoop()
|
|
||||||
})
|
|
||||||
ls.setSpeed(duration)
|
|
||||||
log.Log(INFO, "Update() END")
|
|
||||||
}
|
|
||||||
|
|
||||||
func (ls *LinuxStatus) setSpeed(duration time.Duration) {
|
|
||||||
s := fmt.Sprint(duration)
|
|
||||||
if ls.speedActual == nil {
|
|
||||||
log.Log(WARN, "can't actually warn")
|
|
||||||
return
|
|
||||||
}
|
|
||||||
ls.speedActual.SetText(s)
|
|
||||||
|
|
||||||
if duration > 500*time.Millisecond {
|
|
||||||
ls.speed.SetText("SLOW")
|
|
||||||
} else if duration > 100*time.Millisecond {
|
|
||||||
ls.speed.SetText("OK")
|
|
||||||
} else {
|
|
||||||
ls.speed.SetText("FAST")
|
|
||||||
}
|
|
||||||
}
|
|
||||||
Loading…
Reference in New Issue