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Pull request: dhcpd: fix ip ranges

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Updates #2541.

Squashed commit of the following:

commit c81299991876f48836d24872d9145331a0bc9e6e
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Tue Mar 16 18:10:07 2021 +0300

    agherr: imp docs

commit f43a5f5cde0ea16dd38dd533e16e415a1d306cb2
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Tue Mar 16 17:35:59 2021 +0300

    all: imp err handling, fix code

commit ed26ad0ff53882725f7747264f8094e6fb9b0423
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Tue Mar 16 12:24:17 2021 +0300

    dhcpd: fix ip ranges
This commit is contained in:
Ainar Garipov
2021-03-16 19:11:32 +03:00
parent e6a8fe452c
commit 9736123483
13 changed files with 463 additions and 137 deletions
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44
internal/dhcpd/v4_test.go
View File

@@ -212,18 +212,26 @@ func TestV4DynamicLease_Get(t *testing.T) {
require.Nil(t, err)
assert.Equal(t, 1, s.process(req, resp))
})
// Don't continue if we got any errors in the previous subtest.
require.Nil(t, err)
t.Run("offer", func(t *testing.T) {
assert.Equal(t, dhcpv4.MessageTypeOffer, resp.MessageType())
assert.Equal(t, mac, resp.ClientHWAddr)
assert.True(t, s.conf.RangeStart.Equal(resp.YourIPAddr))
assert.True(t, s.conf.GatewayIP.Equal(resp.Router()[0]))
assert.True(t, s.conf.GatewayIP.Equal(resp.ServerIdentifier()))
assert.Equal(t, s.conf.RangeStart, resp.YourIPAddr)
assert.Equal(t, s.conf.GatewayIP, resp.ServerIdentifier())
router := resp.Router()
require.Len(t, router, 1)
assert.Equal(t, s.conf.GatewayIP, router[0])
assert.Equal(t, s.conf.subnetMask, resp.SubnetMask())
assert.Equal(t, s.conf.leaseTime.Seconds(), resp.IPAddressLeaseTime(-1).Seconds())
assert.Equal(t, []byte("012"), resp.Options[uint8(dhcpv4.OptionFQDN)])
assert.True(t, net.IP{1, 2, 3, 4}.Equal(net.IP(resp.Options[uint8(dhcpv4.OptionRelayAgentInformation)])))
assert.Equal(t, net.IP{1, 2, 3, 4}, net.IP(resp.RelayAgentInfo().ToBytes()))
})
t.Run("request", func(t *testing.T) {
@@ -260,31 +268,3 @@ func TestV4DynamicLease_Get(t *testing.T) {
assert.Equal(t, mac, ls[0].HWAddr)
})
}
func TestIP4InRange(t *testing.T) {
start := net.IP{192, 168, 10, 100}
stop := net.IP{192, 168, 10, 200}
testCases := []struct {
ip net.IP
want bool
}{{
ip: net.IP{192, 168, 10, 99},
want: false,
}, {
ip: net.IP{192, 168, 11, 100},
want: false,
}, {
ip: net.IP{192, 168, 11, 201},
want: false,
}, {
ip: start,
want: true,
}}
for _, tc := range testCases {
t.Run(tc.ip.String(), func(t *testing.T) {
assert.Equal(t, tc.want, ip4InRange(start, stop, tc.ip))
})
}
}