143 Commits

Author SHA1 Message Date
Damien Neil
807a51b391 os: add Root.Chown
For #67002

Change-Id: I546537618cbe32217fa72264d49db2b1a1d3b6db
Reviewed-on: https://go-review.googlesource.com/c/go/+/648295
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Damien Neil <dneil@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2025-02-13 15:29:56 -08:00
Damien Neil
371e83cd7b os: add Root.Chmod
For #67002

Change-Id: Id6c3a2096bd10f5f5f6921a0441dc6d9e6cdeb3b
Reviewed-on: https://go-review.googlesource.com/c/go/+/645718
Commit-Queue: Damien Neil <dneil@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Auto-Submit: Damien Neil <dneil@google.com>
2025-02-10 15:33:35 -08:00
Roxy Light
f7b8dd9033 io/fs: add ReadLinkFS interface
Added implementations for *io/fs.subFS, os.DirFS, and testing/fstest.MapFS.
Amended testing/fstest.TestFS to check behavior.

Addressed TODOs in archive/tar and os.CopyFS around symbolic links.

I am deliberately not changing archive/zip in this CL,
since it currently does not resolve symlinks
as part of its filesystem implementation.
I am unsure of the compatibility restrictions on doing so,
so figured it would be better to address independently.

testing/fstest.MapFS now includes resolution of symlinks,
with MapFile.Data storing the symlink data.
The behavior change there seemed less intrusive,
especially given its intended usage in tests,
and it is especially helpful in testing the io/fs function implementations.

Fixes #49580

Change-Id: I58ec6915e8cc97341cdbfd9c24c67d1b60139447
Reviewed-on: https://go-review.googlesource.com/c/go/+/385534
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Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Quim Muntal <quimmuntal@gmail.com>
Reviewed-by: Funda Secgin <fundasecgin33@gmail.com>
2025-02-03 08:38:43 -08:00
Cherry Mui
e2f342fc51 doc: initialize next directory for Go 1.25
Following the "For the release team" steps in README:

	cd doc
	cp -R initial/ next
	$EDITOR next/1-intro.md

For #70525

Change-Id: I31c271d95ccd72123f531fde4e72929ec7b310d9
Reviewed-on: https://go-review.googlesource.com/c/go/+/646195
Reviewed-by: Carlos Amedee <carlos@golang.org>
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2025-02-03 07:52:07 -08:00
Gopher Robot
9d8273817c doc/next: delete
The release note fragments have been merged and added
as _content/doc/go1.24.md in x/website in CL 634056.

For #68545.

Change-Id: I7b3840df01b8c3699681c0cd21a16af70f74d31d
Reviewed-on: https://go-review.googlesource.com/c/go/+/634057
Auto-Submit: Michael Knyszek <mknyszek@google.com>
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Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
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Reviewed-by: Michael Knyszek <mknyszek@google.com>
2024-12-05 22:41:12 +00:00
Junyang Shao
5213e1e56c testing: improve documentation, examples, release notes for
testing.b.Loop.

This CL added documentation of the no-inlining semantic of b.Loop, with
a concrete example. This CL also tries to improve the release note to be
more descriptive.

Fixes #61515

Change-Id: I1e13cc92d5d6bdbf40fb44f44475e249747b807f
Reviewed-on: https://go-review.googlesource.com/c/go/+/633536
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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Reviewed-by: David Chase <drchase@google.com>
2024-12-05 21:03:13 +00:00
Michael Anthony Knyszek
795d95d6ba doc/next: add release notes for runtime and sync
Also, move the weak package heading to the end; it currently overlaps
with 1-osroot.md in the sort order.

For #68545.

Change-Id: Ia26ae511eaab7c8762e42d1593ac2197d25bbadb
Reviewed-on: https://go-review.googlesource.com/c/go/+/633599
Reviewed-by: David Chase <drchase@google.com>
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2024-12-04 22:20:05 +00:00
Robert Griesemer
2a0aeb1234 doc/next: minor grammar fix in release notes
For #66626.
For #68545.

Change-Id: I4fe21bdaa9580eb087c849de72e98f6145121dd0
Reviewed-on: https://go-review.googlesource.com/c/go/+/633282
Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Alan Donovan <adonovan@google.com>
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2024-12-03 22:11:14 +00:00
Filippo Valsorda
c5c4f3dd5f crypto/x509: keep RSA CRT values in ParsePKCS1PrivateKey
Turns out that recomputing them (and qInv in particular) in constant
time is expensive, so let's not throw them away when they are available.
They are much faster to check, so we now do that on precompute.

Also, thanks to the opaque crypto/internal/fips140/rsa.PrivateKey type,
we now have some assurance that the values we use are always ones we
checked.

Recovers most of the performance loss since CL 630516 in the happy path.
Also, since now we always use the CRT, if necessary by running a
throwaway Precompute, which is now cheap if PrecomputedValues is filled
out, we effectively fixed the JSON round-trip slowdown (#59695).

goos: darwin
goarch: arm64
pkg: crypto/rsa
cpu: Apple M2
                            │ 3b42687c56  │          f017604bc6-dirty           │
                            │   sec/op    │   sec/op     vs base                │
ParsePKCS8PrivateKey/2048-8   26.76µ ± 1%   65.99µ ± 1%  +146.64% (p=0.002 n=6)

Fixes #59695
Updates #69799
For #69536

Change-Id: I507f8c5a32e69ab28990a3bf78959836b9b08cc9
Reviewed-on: https://go-review.googlesource.com/c/go/+/632478
Auto-Submit: Filippo Valsorda <filippo@golang.org>
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2024-11-30 01:49:35 +00:00
Filippo Valsorda
7d7192e54f crypto/rsa: move precomputation to crypto/internal/fips140/rsa
We are severely limited by the crypto/rsa API in a few ways:

 - Precompute doesn't return an error, but is the only function allowed
   to modify a PrivateKey.

 - Clients presumably expect the PrecomputedValues big.Ints to be
   populated after Precompute.

 - MarshalPKCS1PrivateKey requires the precomputed values, and doesn't
   have an error return.

 - PrivateKeys with only N, e, and D have worked so far, so they might
   have to keep working.

To move precomputation to the FIPS module, we focus on the happy path of
a PrivateKey with two primes where Precompute is called before anything
else, which match ParsePKCS1PrivateKey and GenerateKey.

There is a significant slowdown in the Parse benchmark due to the
constant-time inversion of qInv. This will be addressed in a follow-up
CL that will use (and check) the value in the ASN.1.

Note that the prime product check now moved to checkPrivateKey is broken
(Π should start at 1 not 0) and fixed in CL 632478.

Updates #69799
For #69536

Change-Id: I95a8bc1244755c6d15d7c4eb179135a15608ddd6
Reviewed-on: https://go-review.googlesource.com/c/go/+/632476
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2024-11-30 01:49:31 +00:00
Ian Lance Taylor
2a93bd0d79 doc/next: document that crypto/rand.Read never fails
For #66821

Change-Id: Id9b640a57b9d4d1f9114769f607480b14961e7b3
Reviewed-on: https://go-review.googlesource.com/c/go/+/632036
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2024-11-27 21:44:26 +00:00
Roland Shoemaker
eab49f6a59 doc: add note about crypto/x509 serial generation
Fixes #67675

Change-Id: I102c779c2a0ccaf6572be354fec3153a0a0a32eb
Reviewed-on: https://go-review.googlesource.com/c/go/+/631683
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2024-11-26 23:50:52 +00:00
Roland Shoemaker
cff2503b5a doc: add note about x509sha1 removal
Fixes #41682

Change-Id: I73aa4991a6df8dfb90720bd66f2a8a53c3ca3504
Reviewed-on: https://go-review.googlesource.com/c/go/+/631677
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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2024-11-26 18:58:04 +00:00
Filippo Valsorda
de76c0dff7 crypto/cipher: deprecate NewOFB, NewCFBDecrypter, and NewCFBEncrypter
Updates #69445

Change-Id: Ie9cd13d65f1f989f24731f8b09bbc5124873549f
Reviewed-on: https://go-review.googlesource.com/c/go/+/631019
Reviewed-by: Roland Shoemaker <roland@golang.org>
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2024-11-22 04:18:54 +00:00
Filippo Valsorda
4b7f7cd87d crypto/tls: implement X25519MLKEM768
This makes three related changes that work particularly well together
and would require significant extra work to do separately: it replaces
X25519Kyber768Draft00 with X25519MLKEM768, it makes CurvePreferences
ordering crypto/tls-selected, and applies a preference to PQ key
exchange methods over key shares (to mitigate downgrades).

TestHandshakeServerUnsupportedKeyShare was removed because we are not
rejecting unsupported key shares anymore (nor do we select them, and
rejecting them actively is a MAY). It would have been nice to keep the
test to check we still continue successfully, but testClientHelloFailure
is broken in the face of any server-side behavior which requires writing
any other messages back to the client, or reading them.

Updates #69985
Fixes #69393

Change-Id: I58de76f5b8742a9bd4543fd7907c48e038507b19
Reviewed-on: https://go-review.googlesource.com/c/go/+/630775
Reviewed-by: Roland Shoemaker <roland@golang.org>
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2024-11-22 04:03:12 +00:00
Daniel McCarney
9aaef91d3e crypto/mlkem: init package
This commit exposes the crypto/internal/mlkem package as a public crypto
package based on the linked proposal. Since we've already implemented
this internal to the FIPS boundary this largely defers to that
implementation.

Updates #70122

Change-Id: I5ec9c2783c4d44583244c6d16597704a51e9b738
Reviewed-on: https://go-review.googlesource.com/c/go/+/630240
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2024-11-22 03:09:37 +00:00
Filippo Valsorda
b2f7a2154a crypto/fips140: new package
This package holds only the Enabled() function.

Updates #70123

Change-Id: If0e731724d9997001fa52002fa6ae72df4eb16ff
Reviewed-on: https://go-review.googlesource.com/c/go/+/631017
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2024-11-22 03:07:04 +00:00
Roland Shoemaker
918765b619 crypto/x509: switch default policy field to Policies
Switch from Certificate.PolicyIdentifiers to Certificate.Policies when
marshalling.

Fixes #67620

Change-Id: Ib627135a569f53d344b4ee2f892ba139506ce0d1
Reviewed-on: https://go-review.googlesource.com/c/go/+/629855
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
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2024-11-22 02:29:32 +00:00
Filippo Valsorda
8b97607280 crypto/sha3: new package
Implement the SHA-3 hash algorithms and the SHAKE extendable output
functions defined in FIPS 202.

This is a wrapper for crypto/internal/fips/sha3 which in turn was ported
from x/crypto/sha3 in CL 616717 as part of #65269.

Fixes #69982

Change-Id: I64ce7f362c1a773f7f5b05f7e0acb4110e52a329
Reviewed-on: https://go-review.googlesource.com/c/go/+/629176
Reviewed-by: Russ Cox <rsc@golang.org>
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2024-11-22 01:58:53 +00:00
Filippo Valsorda
10fb001c75 crypto/rsa: refuse to generate and/or use keys smaller than 1024 bits
Fixes #68762

Change-Id: Id89c770571d7cc27c6cf7932139ec3424383a7ef
Reviewed-on: https://go-review.googlesource.com/c/go/+/629938
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2024-11-22 01:50:32 +00:00
Roland Shoemaker
e8d9561997 crypto/x509: implement policy validation
Implement support for parsing the various policy related extensions,
and for validating the policy graph for chains.

Policy validation is only run if VerifyOptions.CertificatePolicies is
set. Policy validation is run after chains are built. If the computed
policy graph for a chain is invalid, the chain is removed from the set
of returned chains.

This implements the RFC 5280 algorithm as updated by
RFC 9618 [0].

Fixes #68484

[0] https://www.rfc-editor.org/rfc/rfc9618.html

Change-Id: I576432a47ddc404cba966c2b1995365944b8bd26
Reviewed-on: https://go-review.googlesource.com/c/go/+/628616
Auto-Submit: Roland Shoemaker <roland@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Daniel McCarney <daniel@binaryparadox.net>
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2024-11-22 01:28:52 +00:00
Damien Neil
66abc55707 net/http: add support for unencrypted HTTP/2
Add an UnencryptedHTTP2 protocol value.

Both Server and Transport implement "HTTP/2 with prior knowledge"
as described in RFC 9113, section 3.3. Neither supports the
deprecated HTTP/2 upgrade mechanism (RFC 7540, section 3.2 "h2c").

For Server, UnencryptedHTTP2 controls whether the server
will accept HTTP/2 connections on unencrypted ports.
When enabled, the server checks new connections for
the HTTP/2 preface and routes them appropriately.

For Transport, enabling UnencryptedHTTP2 and disabling HTTP1
causes http:// requests to be made over unencrypted HTTP/2
connections.

For #67816

Change-Id: I2763c4cdec1c2bc6bb8157edb93b94377de8a59b
Reviewed-on: https://go-review.googlesource.com/c/go/+/622976
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2024-11-21 23:48:38 +00:00
Daniel McCarney
fab2b8b0fa crypto/hkdf: init package
This commit imports the x/crypto/hkdf package as a public crypto package
based on the linked proposal. Since we've already implemented this
internal to the FIPS boundary (mod some small changes based on the
proposal discussion) this largely defers to that implementation.

Updates #61477

Change-Id: Ie3dcee75314dfbe22eec8b31c43c926fe80637bb
Reviewed-on: https://go-review.googlesource.com/c/go/+/630296
Reviewed-by: Filippo Valsorda <filippo@golang.org>
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2024-11-21 22:55:17 +00:00
Roland Shoemaker
f69711434a crypto/tls: add server-side ECH
Adds support for server-side ECH.

We make a couple of implementation decisions that are not completely
in-line with the spec. In particular, we don't enforce that the SNI
matches the ECHConfig public_name, and we implement a hybrid
shared/backend mode (rather than shared or split mode, as described in
Section 7). Both of these match the behavior of BoringSSL.

The hybrid server mode will either act as a shared mode server, where-in
the server accepts "outer" client hellos and unwraps them before
processing the "inner" hello, or accepts bare "inner" hellos initially.
This lets the server operate either transparently as a shared mode
server, or a backend server, in Section 7 terminology. This seems like
the best implementation choice for a TLS library.

Fixes #68500

Change-Id: Ife69db7c1886610742e95e76b0ca92587e6d7ed4
Reviewed-on: https://go-review.googlesource.com/c/go/+/623576
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2024-11-21 22:50:04 +00:00
Sean Liao
50087aa1b4 crypto/rand: add Text for secure random strings
Fixes #67057

Change-Id: Id4a1d07bc45d9ebf90b7e6ef507002908dcfa12d
Reviewed-on: https://go-review.googlesource.com/c/go/+/627477
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2024-11-21 22:39:37 +00:00
Daniel McCarney
6a7733af45 crypto/pbkdf2: init package
This commit imports the x/crypto/pbkdf2 package as described in the
linked proposal. The code is unchanged with the exception of a few
small updates to reflect feedback from the proposal comment period:

* the Key function is made generic over a hash.Hash
* the h function is moved to be the first argument
* keyLen is renamed to keyLength
* an error return is added
* the unit tests were moved to the pbkdf2_test package

Updates #69488

Change-Id: If72f854daeb65a5c7fbe45ebd341e63a33340624
Reviewed-on: https://go-review.googlesource.com/c/go/+/628135
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2024-11-21 20:38:05 +00:00
Damien Neil
43d90c6a14 os: add Root
Add os.Root, a type which represents a directory and permits performing
file operations within that directory.

For #67002

Change-Id: I863f4f1bc320a89b1125ae4237761f3e9320a901
Reviewed-on: https://go-review.googlesource.com/c/go/+/612136
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Quim Muntal <quimmuntal@gmail.com>
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2024-11-20 23:20:45 +00:00
Roland Shoemaker
bc1da38c3d crypto/subtle: add DIT closure
Add a new function, WithDataIndependentTiming, which takes a function as
an argument, and encloses it with calls to set/unset the DIT PSTATE bit
on Arm64.

Since DIT is OS thread-local, for the duration of the execution of
WithDataIndependentTiming, we lock the goroutine to the OS thread, using
LockOSThread. For long running operations, this is likely to not be
performant, but we expect this to be tightly scoped around cryptographic
operations that have bounded execution times.

If locking to the OS thread turns out to be too slow, another option is
to add a bit to the g state indicating if a goroutine has DIT enabled,
and then have the scheduler enable/disable DIT when scheduling a g.

Additionally, we add a new GODEBUG, dataindependenttiming, which allows
setting DIT for an entire program. Running a program with
dataindependenttiming=1 enables DIT for the program during
initialization. In an ideal world PSTATE.DIT would be inherited from
the parent thread, so we'd only need to set it in the main thread and
then all subsequent threads would inherit the value. While this does
happen in the Linux kernel [0], it is not the case for darwin [1].
Rather than add complex logic to only set it on darwin for each new
thread, we just unconditionally set it in mstart1 and cgocallbackg1
regardless of the OS. DIT will already impose some overhead, and the
cost of setting the bit is only ~two instructions (CALL, MSR), so it
should be cheap enough.

Fixes #66450
Updates #49702

[0] e8bdb3c8be/arch/arm64/kernel/process.c (L373)
[1] 8d741a5de7/osfmk/arm64/status.c (L1666)

Change-Id: I78eda691ff9254b0415f2b54770e5850a0179749
Reviewed-on: https://go-review.googlesource.com/c/go/+/598336
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Michael Pratt <mpratt@google.com>
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2024-11-19 16:47:03 +00:00
Filippo Valsorda
f916d93e41 crypto/cipher: add NewGCMWithRandomNonce
Fixes #69981

Change-Id: I0cad11f5d7673304c5a6d85fc598ddc27ab93738
Reviewed-on: https://go-review.googlesource.com/c/go/+/629175
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Reviewed-by: Russ Cox <rsc@golang.org>
2024-11-19 16:26:40 +00:00
Michael Anthony Knyszek
a65f1a467f weak: move internal/weak to weak, and update according to proposal
The updates are:
- API documentation changes.
- Removal of the old package documentation discouraging linkname.
- Addition of new package documentation with some advice.
- Renaming of weak.Pointer.Strong -> weak.Pointer.Value.

Fixes #67552.

Change-Id: Ifad7e629b6d339dacaf2ca37b459d7f903e31bf8
Reviewed-on: https://go-review.googlesource.com/c/go/+/628455
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2024-11-18 22:29:23 +00:00
Carlos Amedee
0531768b30 runtime: implement AddCleanup
This change introduces AddCleanup to the runtime package. AddCleanup attaches
a cleanup function to an pointer to an object.

The Stop method on Cleanups will be implemented in a followup CL.

AddCleanup is intended to be an incremental improvement over
SetFinalizer and will result in SetFinalizer being deprecated.

For #67535

Change-Id: I99645152e3fdcee85fcf42a4f312c6917e8aecb1
Reviewed-on: https://go-review.googlesource.com/c/go/+/627695
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2024-11-16 03:26:04 +00:00
qmuntal
60d66e6a86 os/user: support built-in service user accounts on Windows
Built-in service user accounts should be treated as special cases
of well-known groups and allowed in user.Lookup and user.LookupId.

Namely, these accounts are:
- NT AUTHORITY\SYSTEM (S-1-5-18)
- NT AUTHORITY\LOCAL SERVICE (S-1-5-19)
- NT AUTHORITY\NETWORK SERVICE (S-1-5-20)

See https://learn.microsoft.com/en-us/windows/win32/services/service-user-accounts.

Note that #49509 also mentions S-1-5-17 (NT AUTHORITY\IUSR) as
another well-known group that should be treated as a user. I haven't
found any documentation supporting this claim, and it is not an account
that is used usually, so I'm not adding it for now.

This CL is heavily based on CL 452497.

Fixes #49509

Change-Id: I6e204ddfb4ed0c01b4503001cf284602531e4a88
Reviewed-on: https://go-review.googlesource.com/c/go/+/626255
Reviewed-by: Cherry Mui <cherryyz@google.com>
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2024-11-15 16:10:50 +00:00
Carlana Johnson
3d61de41a2 log/slog: add DiscardHandler
This adds a package-level variable, slog.DiscardHandler, which is a
slog.Handler which performs no output. This serves a similar purpose
to io.Discard.

Fixes #62005

Change-Id: Ia8babc55f860dec9b663a5c400090a7669608fd5
GitHub-Last-Rev: 0a611174ee8819a2f4e1b8e196a60d5acc6ef9f7
GitHub-Pull-Request: golang/go#70296
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2024-11-14 22:27:09 +00:00
benbaker76
2e97c30d8d debug/elf: add SHT_GNU_VERDEF section parsing
Fixes #63952

Change-Id: Icf93e57e62243d9c3306d4e1c5dadb3f62747710
GitHub-Last-Rev: 5c2952760063474f3aac338fe5bdb65bde238ab6
GitHub-Pull-Request: golang/go#69850
Reviewed-on: https://go-review.googlesource.com/c/go/+/619077
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2024-11-07 15:23:24 +00:00
Damien Neil
bfc8f28068 net/http: add Protocols field to Server and Transport
Support configuring which HTTP version(s) a server or client use
via an explicit set of protocols. The Protocols field takes
precedence over TLSNextProto and ForceAttemptHTTP2.

Fixes #67814

Change-Id: I09ece88f78ad4d98ca1f213157b5f62ae11e063f
Reviewed-on: https://go-review.googlesource.com/c/go/+/607496
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2024-11-05 22:14:59 +00:00
Damien Neil
4226fc597b doc: document new http.Transport limit on 1xx responses
Fixes #65035

Change-Id: I3b0586b5e2a0729e6b252d2bcd4139c99bc80733
Reviewed-on: https://go-review.googlesource.com/c/go/+/622335
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2024-10-25 03:22:33 +00:00
qiulaidongfeng
03103a54d8 hash/maphash: add WriteComparable and Comparable
Default, use  hash function in the runtime package.
If the build tag is purego or raw memory cannot be hash directly,
use reflect get each field to hash separately.

Fixes #54670

Change-Id: Ic968864c9c3c51883967d4f6dc24432385c7dc79
GitHub-Last-Rev: 5ae8a28834c8b809a52c74617e2a8530acec8095
GitHub-Pull-Request: golang/go#69166
Reviewed-on: https://go-review.googlesource.com/c/go/+/609761
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
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2024-10-02 15:54:11 +00:00
Jes Cok
e86982c515 encoding/json: add omitzero option
Fixes #45669

Change-Id: Ic13523c0b3acdfc5b3e29a717bc62fde302ed8fd
GitHub-Last-Rev: 57030f26b0062fa8eda21b3a73b7665deab88c76
GitHub-Pull-Request: golang/go#69622
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2024-10-02 14:22:27 +00:00
qiulaidongfeng
712d47ce15 text/template: support range-over-int
Fixes #66107

Change-Id: I19b466e3fb17557cf4f198b7fd8c13e774d854b1
Reviewed-on: https://go-review.googlesource.com/c/go/+/615095
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2024-09-26 20:17:24 +00:00
apocelipes
a92c80eb40 net,net/netip: implement the encoding.(Binary|Text)Appender
Implement the encoding.TextAppender interface for "net.IP".

Implement the encoding.(Binary|Text)Appender interfaces for
"netip.Addr", "netip.AddrPort" and "netip.Prefix".

"net.IP.MarshalText" also gets some performance improvements:

                          │     old      │                 new                 │
                          │    sec/op    │   sec/op     vs base                │
IPMarshalText/IPv4-8         66.06n ± 1%   14.55n ± 1%  -77.97% (p=0.000 n=10)
IPMarshalText/IPv6-8        117.00n ± 1%   63.18n ± 1%  -46.00% (p=0.000 n=10)
IPMarshalText/IPv6_long-8    137.8n ± 1%   111.3n ± 1%  -19.27% (p=0.000 n=10)
geomean                      102.1n        46.77n       -54.21%

                          │    old     │                   new                   │
                          │    B/op    │    B/op     vs base                     │
IPMarshalText/IPv4-8        32.00 ± 0%    0.00 ± 0%  -100.00% (p=0.000 n=10)
IPMarshalText/IPv6-8        48.00 ± 0%    0.00 ± 0%  -100.00% (p=0.000 n=10)
IPMarshalText/IPv6_long-8   96.00 ± 0%   48.00 ± 0%   -50.00% (p=0.000 n=10)

                          │    old     │                   new                   │
                          │ allocs/op  │ allocs/op   vs base                     │
IPMarshalText/IPv4-8        2.000 ± 0%   0.000 ± 0%  -100.00% (p=0.000 n=10)
IPMarshalText/IPv6-8        2.000 ± 0%   0.000 ± 0%  -100.00% (p=0.000 n=10)
IPMarshalText/IPv6_long-8   2.000 ± 0%   1.000 ± 0%   -50.00% (p=0.000 n=10)

All exported types in the standard library that implement the
"encoding.(Binary|Text)Marshaler" now also implement the
"encoding.(Binary|Text)Appender".

Fixes #62384

Change-Id: I7d3da8c5736a1ab9c54b9ac4bd2fbf850f9d1bd0
GitHub-Last-Rev: 5d27854725d957dd89d2ddc4342ca97999d10cb2
GitHub-Pull-Request: golang/go#69022
Reviewed-on: https://go-review.googlesource.com/c/go/+/607520
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2024-09-23 18:10:51 +00:00
qiulaidongfeng
cfbd2e7b40 text/template: support range-over-func
For #66107

Change-Id: I2fcd04bebe80346dbd244ab7ea09cbe6010b9d8e
GitHub-Last-Rev: 5ebf615db5889a04738c555c651e07c1fd287748
GitHub-Pull-Request: golang/go#68329
Reviewed-on: https://go-review.googlesource.com/c/go/+/596956
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2024-09-23 14:35:44 +00:00
Song Gao
0081f17f14 archive/{zip,tar}: fix Writer.AddFS to include empty directories
This change modifies the `(*Writer).AddFS` implementation in both `archive/zip`
and `archive/tar` to always write a directory header. This fixes a bug where
any empty directories in the fs were omitted when a zip or tar archive was
created from `AddFS` method.

Fixes #66831

Change-Id: Id32c9c747f9f65ec7db4aeefeaffa83567215bfc
Reviewed-on: https://go-review.googlesource.com/c/go/+/578415
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2024-09-23 14:32:33 +00:00
sunnymilk
6600a871ef testing: implement testing.B.Loop
Initial implementation for testing.B.Loop,
right now the calculation of b.N are still done in the old fasion way,
as of now b.Loop is merely an alias for the old loop over b.N.

For #61515.

Change-Id: If211d0acc5f0c33df530096dceafe0b947ab0c8e
Reviewed-on: https://go-review.googlesource.com/c/go/+/608798
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2024-09-20 19:09:41 +00:00
j2gg0s
0fe6347732 encoding/json: add embedded structs to the UnmarshalTypeError's Field
Including embedded struct inforamtion in error message.

Fixes #68941

Change-Id: I6a6f7d506104839a9a7cf1a2c3003272f5534a79
GitHub-Last-Rev: 717f680acafd3f6509c0495f9092e028be502750
GitHub-Pull-Request: golang/go#68966
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2024-09-03 15:49:47 +00:00
Aperence
3d4daa38a7 net: enable multipath TCP by default for listeners
A previous change [1] was introduced to enable MPTCP by default
for both the clients and servers, based on the discussions [2] in
golang#56539, where MPTCP would be an opt-in for a release or
two, and then would become an opt-out.

This change was not accepted at the time because the support for
a few socket options was missing [3]. Now that this support has been
added [4] and backported to stable versions not to block MPTCP
deployment with Go, it sounds like a good time to reconsider the use
of MPTCP by default.

Instead of enabling MPTCP on both ends by default, as a first step,
it seems safer to change the default behaviour only for the server
side (Listeners). On the server side, the impact is minimal: when
clients don't request to use MPTCP, server applications will create
"plain" TCP sockets within the kernel when connections are accepted,
making the performance impact minimal. This should also ease
experiments where MPTCP is enabled by default on the client side
(Dialer).

The changes in this patch consist of a duplication of the mptcpStatus
enumeration to have both a mptcpStatusDial and a mptcpStatusListen,
where MPTCP is enabled by default in mptcpStatusListen, but disabled
by default in mptcpStatusDial. It is still possible to turn MPTCP support
on and off by using GODEBUG=multipathtcp=1.

[1] https://go-review.googlesource.com/c/go/+/563575
[2] https://go.dev/issue/56539#issuecomment-1309294637
[3] https://github.com/multipath-tcp/mptcp_net-next/issues/383
[4] bd11dc4fb9
[5] https://www.mptcp.dev/faq.html#why--when-should-mptcp-be-enabled-by-default

Updates #56539

Change-Id: I1ca0d6aaf74d3bda5468af135e29cdb405d3fd00
GitHub-Last-Rev: 5f9f29bfc13ad4ea6bfd1e0fc95a91bd824f4048
GitHub-Pull-Request: golang/go#69016
Reviewed-on: https://go-review.googlesource.com/c/go/+/607715
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Reviewed-by: Matthieu Baerts <matttbe@kernel.org>
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2024-09-03 15:27:29 +00:00
Damien Neil
f84dea3a01 net/http: add HTTP2Config
Add a field to Server and Transport containing HTTP/2 configuration
parameters.

This field will have no effect until golang.org/x/net/http2 is updated
to make use of it, and h2_bundle.go is updated with the new http2
package.

For #67813

Change-Id: I81d7f8e9ddea78f9666383983aec43e3884c13ed
Reviewed-on: https://go-review.googlesource.com/c/go/+/602175
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2024-08-29 17:38:46 +00:00
qmuntal
a96e736284 os/user: document Current improvements
Update #21867.
Update #68312.
Update #68647.

Change-Id: Ic41d6747c5a54ba28c1292258aa4d318ccb9fe40
Reviewed-on: https://go-review.googlesource.com/c/go/+/604395
Reviewed-by: Cherry Mui <cherryyz@google.com>
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2024-08-21 19:59:22 +00:00
apocelipes
fd985d23dc crypto/x509,math/rand/v2: implement the encoding.(Binary|Text)Appender
Implement the encoding.(Binary|Text)Appender interfaces for "x509.OID".

Implement the encoding.BinaryAppender interface for "rand/v2.PCG" and "rand/v2.ChaCha8".

"rand/v2.ChaCha8.MarshalBinary" alse gains some performance benefits:

                           │     old      │                 new                 │
                           │    sec/op    │   sec/op     vs base                │
ChaCha8MarshalBinary-8       33.730n ± 2%   9.786n ± 1%  -70.99% (p=0.000 n=10)
ChaCha8MarshalBinaryRead-8    99.86n ± 1%   17.79n ± 0%  -82.18% (p=0.000 n=10)
geomean                       58.04n        13.19n       -77.27%

                           │    old     │                  new                   │
                           │    B/op    │   B/op     vs base                     │
ChaCha8MarshalBinary-8       48.00 ± 0%   0.00 ± 0%  -100.00% (p=0.000 n=10)
ChaCha8MarshalBinaryRead-8   83.00 ± 0%   0.00 ± 0%  -100.00% (p=0.000 n=10)

                           │    old     │                   new                   │
                           │ allocs/op  │ allocs/op   vs base                     │
ChaCha8MarshalBinary-8       1.000 ± 0%   0.000 ± 0%  -100.00% (p=0.000 n=10)
ChaCha8MarshalBinaryRead-8   2.000 ± 0%   0.000 ± 0%  -100.00% (p=0.000 n=10)

For #62384

Change-Id: I604bde6dad90a916012909c7260f4bb06dcf5c0a
GitHub-Last-Rev: 78abf9c5dfb74838985637798bcd5cb957541d20
GitHub-Pull-Request: golang/go#68987
Reviewed-on: https://go-review.googlesource.com/c/go/+/607079
Reviewed-by: Cherry Mui <cherryyz@google.com>
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2024-08-21 19:19:57 +00:00
Dmitri Shuralyov
a5d61d75e3 runtime: deprecate GOROOT
Fixes #51473.

Change-Id: Ic868790f480b21b472c98b39be797bcffb1fa892
Reviewed-on: https://go-review.googlesource.com/c/go/+/564142
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2024-08-20 22:49:59 +00:00
Ian Lance Taylor
4e1cc09f8b doc/next: update 36532.md to wording suggested in CL
Change-Id: If7a2aa45770d19ee15f8fe99cab62624c2e29ef6
Reviewed-on: https://go-review.googlesource.com/c/go/+/606958
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2024-08-20 17:36:54 +00:00