mirror of
https://github.com/ceph/ceph-csi.git
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6c704bcd89
While dealing with CephFS fencing we evict the clients and block the IPs from the CIDR range that do not have any active clients individually. While Unfencing, the IP is removed via the CIDR range which fails to remove the individual IPs from Ceph's blacklist. This PR fetches the blocklist from ceph and removes the IPs in blocklist that lie inside the CIDR range along with their unique nonces. Signed-off-by: Niraj Yadav <niryadav@redhat.com>
260 lines
6.2 KiB
Go
260 lines
6.2 KiB
Go
/*
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Copyright 2023 The Ceph-CSI Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package networkfence
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import (
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"context"
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"testing"
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"github.com/stretchr/testify/require"
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)
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func TestGetIPRange(t *testing.T) {
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t.Parallel()
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tests := []struct {
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cidr string
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expectedIPs []string
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}{
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{
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cidr: "192.168.1.0/31",
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expectedIPs: []string{"192.168.1.0", "192.168.1.1"},
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},
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{
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cidr: "10.0.0.0/30",
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expectedIPs: []string{"10.0.0.0", "10.0.0.1", "10.0.0.2", "10.0.0.3"},
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},
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{
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cidr: "fd4a:ecbc:cafd:4e49::/127",
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expectedIPs: []string{"fd4a:ecbc:cafd:4e49::", "fd4a:ecbc:cafd:4e49::1"},
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},
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}
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for _, tt := range tests {
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t.Run(tt.cidr, func(t *testing.T) {
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t.Parallel()
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got, err := getIPRange(tt.cidr)
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require.NoError(t, err)
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// validate if number of IPs in the range is same as expected, if not, fail.
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require.ElementsMatch(t, tt.expectedIPs, got)
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})
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}
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}
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func TestFetchIP(t *testing.T) {
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t.Parallel()
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tests := []struct {
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clientInfo string
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expectedIP string
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expectedErr bool
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}{
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{
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clientInfo: "client.4305 172.21.9.34:0/422650892",
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expectedIP: "172.21.9.34",
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expectedErr: false,
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},
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{
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clientInfo: "client.4305 2001:0db8:85a3:0000:0000:8a2e:0370:7334:0/422650892",
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expectedIP: "2001:db8:85a3::8a2e:370:7334",
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expectedErr: false,
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},
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{
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clientInfo: "client.24152 v1:100.64.0.7:0/3658550259",
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expectedIP: "100.64.0.7",
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expectedErr: false,
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},
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{
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clientInfo: "",
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expectedIP: "",
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expectedErr: true,
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},
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}
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for _, tt := range tests {
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t.Run(tt.clientInfo, func(t *testing.T) {
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t.Parallel()
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client := activeClient{Inst: tt.clientInfo}
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ip, actualErr := client.fetchIP()
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if (actualErr != nil) != tt.expectedErr {
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t.Errorf("expected error %v but got %v", tt.expectedErr, actualErr)
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}
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if ip != tt.expectedIP {
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t.Errorf("expected IP %s but got %s", tt.expectedIP, ip)
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}
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})
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}
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}
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func TestFetchID(t *testing.T) {
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t.Parallel()
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tests := []struct {
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clientInfo string
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expectedID int
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expectedErr bool
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}{
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{
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clientInfo: "client.4305 172.21.9.34:0/422650892",
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expectedID: 4305,
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expectedErr: false,
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},
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{
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clientInfo: "",
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expectedID: 0,
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expectedErr: true,
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},
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}
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for _, tt := range tests {
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t.Run(tt.clientInfo, func(t *testing.T) {
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t.Parallel()
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ac := &activeClient{Inst: tt.clientInfo}
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actualID, actualErr := ac.fetchID()
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if (actualErr != nil) != tt.expectedErr {
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t.Errorf("expected error %v but got %v", tt.expectedErr, actualErr)
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}
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if actualID != tt.expectedID {
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t.Errorf("expected ID %d but got %d", tt.expectedID, actualID)
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}
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})
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}
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}
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func TestParseBlocklistEntry(t *testing.T) {
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t.Parallel()
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tests := []struct {
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name string
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input string
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expected IPWithNonce
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}{
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{
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name: "Valid IP and nonce",
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input: "192.168.1.1:6789/abcdef123456",
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expected: IPWithNonce{IP: "192.168.1.1", Nonce: "abcdef123456"},
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},
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{
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name: "IPv6 address with full notation",
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input: "2001:0db8:0000:0000:0000:8a2e:0370:7334:6789/abc123",
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expected: IPWithNonce{IP: "2001:0db8:0000:0000:0000:8a2e:0370:7334", Nonce: "abc123"},
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},
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{
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name: "IPv6 address with compressed zeros",
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input: "2001:db8::1428:57ab:6789/def456",
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expected: IPWithNonce{IP: "2001:db8::1428:57ab", Nonce: "def456"},
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},
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{
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name: "IPv6 loopback address",
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input: "::1:6789/ghi789",
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expected: IPWithNonce{IP: "::1", Nonce: "ghi789"},
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},
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{
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name: "IPv6 address with IPv4 mapping",
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input: "::ffff:192.0.2.128:6789/jkl012",
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expected: IPWithNonce{IP: "::ffff:192.0.2.128", Nonce: "jkl012"},
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},
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{
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name: "IP without port",
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input: "10.0.0.1/nonce123",
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expected: IPWithNonce{},
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},
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{
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name: "Extra whitespace",
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input: " 172.16.0.1:1234/abc123 extra info ",
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expected: IPWithNonce{IP: "172.16.0.1", Nonce: "abc123"},
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},
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}
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nf := &NetworkFence{}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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t.Parallel()
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result := nf.parseBlocklistEntry(tt.input)
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require.Equal(t, tt.expected, result)
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})
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}
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}
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func TestParseBlocklistForCIDR(t *testing.T) {
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t.Parallel()
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testCases := []struct {
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name string
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blocklist string
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cidr string
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expected []IPWithNonce
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}{
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{
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name: "Single IPv4 in CIDR",
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blocklist: `192.168.1.1:0/1234567 expires 2023-07-01 10:00:00.000000
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listed 1 entries`,
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cidr: "192.168.1.0/24",
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expected: []IPWithNonce{{IP: "192.168.1.1", Nonce: "1234567"}},
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},
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{
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name: "Multiple IPv4 in CIDR",
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blocklist: `192.168.1.1:0/1234567 expires 2023-07-01 10:00:00.000000
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192.168.1.2:0/7654321 expires 2023-07-01 11:00:00.000000
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192.168.2.1:0/abcdefg expires 2023-07-01 12:00:00.000000
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listed 3 entries`,
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cidr: "192.168.1.0/24",
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expected: []IPWithNonce{
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{IP: "192.168.1.1", Nonce: "1234567"},
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{IP: "192.168.1.2", Nonce: "7654321"},
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},
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},
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{
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name: "IPv6 in CIDR",
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blocklist: `2001:db8::1:0/fedcba expires 2023-07-01 10:00:00.000000
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2001:db8::2:0/abcdef expires 2023-07-01 11:00:00.000000
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listed 2 entries`,
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cidr: "2001:db8::/64",
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expected: []IPWithNonce{{IP: "2001:db8::1", Nonce: "fedcba"}, {IP: "2001:db8::2", Nonce: "abcdef"}},
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},
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{
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name: "Empty blocklist",
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blocklist: `listed 0 entries`,
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cidr: "192.168.1.0/24",
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expected: []IPWithNonce{},
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},
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{
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name: "No matching IPs",
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blocklist: `10.0.0.1:0/1234567 expires 2023-07-01 10:00:00.000000
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listed 1 entries`,
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cidr: "192.168.1.0/24",
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expected: []IPWithNonce{},
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},
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}
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nf := &NetworkFence{}
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for _, tc := range testCases {
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t.Run(tc.name, func(t *testing.T) {
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t.Parallel()
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result := nf.parseBlocklistForCIDR(context.TODO(), tc.blocklist, tc.cidr)
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require.Equal(t, tc.expected, result)
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})
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}
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}
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