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Pull request: dhcpd: do not assume mac addrs of 6 bytes

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Closes #2828.

Squashed commit of the following:

commit 26c6cf81c32469e1c4955aafb40490c29b4d1a99
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Tue Mar 30 17:43:53 2021 +0300

    dhcpd: do not assume mac addrs of 6 bytes
This commit is contained in:
Ainar Garipov
2021-03-31 12:36:57 +03:00
parent 48e82f9ab5
commit bfc7e16d84
7 changed files with 204 additions and 48 deletions
Download Patch File Download Diff File Expand all files Collapse all files

31
internal/dhcpd/routeradv_test.go
View File

@@ -7,8 +7,23 @@ import (
"github.com/stretchr/testify/assert"
)
func TestRA(t *testing.T) {
data := createICMPv6RAPacket(icmpv6RA{
func TestCreateICMPv6RAPacket(t *testing.T) {
wantData := []byte{
0x86, 0x00, 0x00, 0x00, 0x40, 0x40, 0x07, 0x08,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x03, 0x04, 0x40, 0xc0, 0x00, 0x00, 0x0e, 0x10,
0x00, 0x00, 0x0e, 0x10, 0x00, 0x00, 0x00, 0x00,
0x12, 0x34, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x05, 0x01, 0x00, 0x00, 0x00, 0x00, 0x05, 0xdc,
0x01, 0x01, 0x0a, 0x00, 0x27, 0x00, 0x00, 0x00,
0x00, 0x00, 0x19, 0x03, 0x00, 0x00, 0x00, 0x00,
0x0e, 0x10, 0xfe, 0x80, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x08, 0x00, 0x27, 0xff, 0xfe, 0x00,
0x00, 0x00,
}
gotData, err := createICMPv6RAPacket(icmpv6RA{
managedAddressConfiguration: false,
otherConfiguration: true,
mtu: 1500,
@@ -17,13 +32,7 @@ func TestRA(t *testing.T) {
recursiveDNSServer: net.ParseIP("fe80::800:27ff:fe00:0"),
sourceLinkLayerAddress: []byte{0x0a, 0x00, 0x27, 0x00, 0x00, 0x00},
})
dataCorrect := []byte{
0x86, 0x00, 0x00, 0x00, 0x40, 0x40, 0x07, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x03, 0x04, 0x40, 0xc0, 0x00, 0x00, 0x0e, 0x10, 0x00, 0x00, 0x0e, 0x10, 0x00, 0x00, 0x00, 0x00,
0x12, 0x34, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x05, 0x01, 0x00, 0x00, 0x00, 0x00, 0x05, 0xdc, 0x01, 0x01, 0x0a, 0x00, 0x27, 0x00, 0x00, 0x00,
0x19, 0x03, 0x00, 0x00, 0x00, 0x00, 0x0e, 0x10, 0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x08, 0x00, 0x27, 0xff, 0xfe, 0x00, 0x00, 0x00,
}
assert.Equal(t, dataCorrect, data)
assert.NoError(t, err)
assert.Equal(t, wantData, gotData)
}