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Add network device driver model, netdev

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This PR adds a network device driver model called netdev. There will be a companion PR for TinyGo drivers to update the netdev drivers and network examples. This PR covers the core "net" package.

An RFC for the work is here: #tinygo-org/drivers#487. Some things have changed from the RFC, but nothing major.

The "net" package is a partial port of Go's "net" package, version 1.19.3. The src/net/README file has details on what is modified from Go's "net" package.

Most "net" features are working as they would in normal Go. TCP/UDP/TLS protocol support is there. As well as HTTP client and server support. Standard Go network packages such as golang.org/x/net/websockets and Paho MQTT client work as-is. Other packages are likely to work as-is.

Testing results are here (https://docs.google.com/spreadsheets/d/e/2PACX-1vT0cCjBvwXf9HJf6aJV2Sw198F2ief02gmbMV0sQocKT4y4RpfKv3dh6Jyew8lQW64FouZ8GwA2yjxI/pubhtml?gid=1013173032&single=true).
This commit is contained in:
Scott Feldman
2023-03-27 14:15:21 -07:00
committed by deadprogram
parent b46e2ec2ac
commit 693edae782
39 changed files with 11271 additions and 1092 deletions
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mac.go
+11 -11
View File
@@ -1,4 +1,4 @@
// The following is copied from Go 1.16 official implementation.
// TINYGO: The following is copied from Go 1.19.3 official implementation.
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
@@ -40,49 +40,49 @@ func (a HardwareAddr) String() string {
// 0000.0000.fe80.0000.0000.0000.0200.5e10.0000.0001
func ParseMAC(s string) (hw HardwareAddr, err error) {
if len(s) < 14 {
goto err
goto error
}
if s[2] == ':' || s[2] == '-' {
if (len(s)+1)%3 != 0 {
goto err
goto error
}
n := (len(s) + 1) / 3
if n != 6 && n != 8 && n != 20 {
goto err
goto error
}
hw = make(HardwareAddr, n)
for x, i := 0, 0; i < n; i++ {
var ok bool
if hw[i], ok = xtoi2(s[x:], s[2]); !ok {
goto err
goto error
}
x += 3
}
} else if s[4] == '.' {
if (len(s)+1)%5 != 0 {
goto err
goto error
}
n := 2 * (len(s) + 1) / 5
if n != 6 && n != 8 && n != 20 {
goto err
goto error
}
hw = make(HardwareAddr, n)
for x, i := 0, 0; i < n; i += 2 {
var ok bool
if hw[i], ok = xtoi2(s[x:x+2], 0); !ok {
goto err
goto error
}
if hw[i+1], ok = xtoi2(s[x+2:], s[4]); !ok {
goto err
goto error
}
x += 5
}
} else {
goto err
goto error
}
return hw, nil
err:
error:
return nil, &AddrError{Err: "invalid MAC address", Addr: s}
}