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crypto/tls: add HandshakeContext method to Conn

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Adds the (*tls.Conn).HandshakeContext method. This allows
us to pass the context provided down the call stack to
eventually reach the tls.ClientHelloInfo and
tls.CertificateRequestInfo structs.
These contexts are exposed to the user as read-only via Context()
methods.

This allows users of (*tls.Config).GetCertificate and
(*tls.Config).GetClientCertificate to use the context for
request scoped parameters and cancellation.

Replace uses of (*tls.Conn).Handshake with (*tls.Conn).HandshakeContext
where appropriate, to propagate existing contexts.

Fixes #32406

Change-Id: I259939c744bdc9b805bf51a845a8bc462c042483
Reviewed-on: https://go-review.googlesource.com/c/go/+/295370
Run-TryBot: Johan Brandhorst-Satzkorn <johan.brandhorst@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Katie Hockman <katie@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
This commit is contained in:
Johan Brandhorst 2020-08-01 12:18:31 +01:00 • committed by Johan Brandhorst-Satzkorn
parent 2708f2d5a3
commit 93cad92f83
9 changed files with 266 additions and 62 deletions
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3
handshake_client_tls13.go
View file

@ -6,6 +6,7 @@ package tls
import (
"bytes"
"context"
"crypto"
"crypto/hmac"
"crypto/rsa"
@ -17,6 +18,7 @@ import (
type clientHandshakeStateTLS13 struct {
c *Conn
ctx context.Context
serverHello *serverHelloMsg
hello *clientHelloMsg
ecdheParams ecdheParameters
@ -555,6 +557,7 @@ func (hs *clientHandshakeStateTLS13) sendClientCertificate() error {
AcceptableCAs: hs.certReq.certificateAuthorities,
SignatureSchemes: hs.certReq.supportedSignatureAlgorithms,
Version: c.vers,
ctx: hs.ctx,
})
if err != nil {
return err