1 #!/bin/bash
2 # SPDX-License-Identifier: GPL-2.0
3 #
4 # Topology for Bond mode 1,5,6 testing
5 #
6 # +-------------------------+
7 # | bond0 | Server
8 # | + | 192.0.2.1/24
9 # | eth0 | eth1 | 2001:db8::1/24
10 # | +---+---+ |
11 # | | | |
12 # +-------------------------+
13 # | |
14 # +-------------------------+
15 # | | | |
16 # | +---+-------+---+ | Gateway
17 # | | br0 | | 192.0.2.254/24
18 # | +-------+-------+ | 2001:db8::254/24
19 # | | |
20 # +-------------------------+
21 # |
22 # +-------------------------+
23 # | | | Client
24 # | + | 192.0.2.10/24
25 # | eth0 | 2001:db8::10/24
26 # +-------------------------+
27
28 REQUIRE_MZ=no
29 NUM_NETIFS=0
30 lib_dir=$(dirname "$0")
31 source "$lib_dir"/../../../net/forwarding/lib.sh
32
33 s_ns="s-$(mktemp -u XXXXXX)"
34 c_ns="c-$(mktemp -u XXXXXX)"
35 g_ns="g-$(mktemp -u XXXXXX)"
36 s_ip4="192.0.2.1"
37 c_ip4="192.0.2.10"
38 g_ip4="192.0.2.254"
39 s_ip6="2001:db8::1"
40 c_ip6="2001:db8::10"
41 g_ip6="2001:db8::254"
42
43 gateway_create()
44 {
45 ip netns add ${g_ns}
46 ip -n ${g_ns} link add br0 type bridge
47 ip -n ${g_ns} link set br0 up
48 ip -n ${g_ns} addr add ${g_ip4}/24 dev br0
49 ip -n ${g_ns} addr add ${g_ip6}/24 dev br0
50 }
51
52 gateway_destroy()
53 {
54 ip -n ${g_ns} link del br0
55 ip netns del ${g_ns}
56 }
57
58 server_create()
59 {
60 ip netns add ${s_ns}
61 ip -n ${s_ns} link add bond0 type bond mode active-backup miimon 100
62
63 for i in $(seq 0 1); do
64 ip -n ${s_ns} link add eth${i} type veth peer name s${i} netns ${g_ns}
65
66 ip -n ${g_ns} link set s${i} up
67 ip -n ${g_ns} link set s${i} master br0
68 ip -n ${s_ns} link set eth${i} master bond0
69
70 tc -n ${g_ns} qdisc add dev s${i} clsact
71 done
72
73 ip -n ${s_ns} link set bond0 up
74 ip -n ${s_ns} addr add ${s_ip4}/24 dev bond0
75 ip -n ${s_ns} addr add ${s_ip6}/24 dev bond0
76 }
77
78 # Reset bond with new mode and options
79 bond_reset()
80 {
81 # Count the eth link number in real-time as this function
82 # maybe called from other topologies.
83 local link_num=$(ip -n ${s_ns} -br link show | grep -c "^eth")
84 local param="$1"
85 link_num=$((link_num -1))
86
87 ip -n ${s_ns} link set bond0 down
88 ip -n ${s_ns} link del bond0
89
90 ip -n ${s_ns} link add bond0 type bond $param
91 for i in $(seq 0 ${link_num}); do
92 ip -n ${s_ns} link set eth$i master bond0
93 done
94
95 ip -n ${s_ns} link set bond0 up
96 ip -n ${s_ns} addr add ${s_ip4}/24 dev bond0
97 ip -n ${s_ns} addr add ${s_ip6}/24 dev bond0
98 # Wait for IPv6 address ready as it needs DAD
99 slowwait 2 ip netns exec ${s_ns} ping6 ${c_ip6} -c 1 -W 0.1 &> /dev/null
100 }
101
102 server_destroy()
103 {
104 # Count the eth link number in real-time as this function
105 # maybe called from other topologies.
106 local link_num=$(ip -n ${s_ns} -br link show | grep -c "^eth")
107 link_num=$((link_num -1))
108 for i in $(seq 0 ${link_num}); do
109 ip -n ${s_ns} link del eth${i}
110 done
111 ip netns del ${s_ns}
112 }
113
114 client_create()
115 {
116 ip netns add ${c_ns}
117 ip -n ${c_ns} link add eth0 type veth peer name c0 netns ${g_ns}
118
119 ip -n ${g_ns} link set c0 up
120 ip -n ${g_ns} link set c0 master br0
121
122 ip -n ${c_ns} link set eth0 up
123 ip -n ${c_ns} addr add ${c_ip4}/24 dev eth0
124 ip -n ${c_ns} addr add ${c_ip6}/24 dev eth0
125 }
126
127 client_destroy()
128 {
129 ip -n ${c_ns} link del eth0
130 ip netns del ${c_ns}
131 }
132
133 setup_prepare()
134 {
135 gateway_create
136 server_create
137 client_create
138 }
139
140 cleanup()
141 {
142 pre_cleanup
143
144 client_destroy
145 server_destroy
146 gateway_destroy
147 }
148
149 bond_check_connection()
150 {
151 local msg=${1:-"check connection"}
152
153 slowwait 2 ip netns exec ${s_ns} ping ${c_ip4} -c 1 -W 0.1 &> /dev/null
154 ip netns exec ${s_ns} ping ${c_ip4} -c5 -i 0.1 &>/dev/null
155 check_err $? "${msg}: ping failed"
156 ip netns exec ${s_ns} ping6 ${c_ip6} -c5 -i 0.1 &>/dev/null
157 check_err $? "${msg}: ping6 failed"
158 }
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