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- #!/bin/bash
- # Copyright 2014 Cynthia Rempel <cynthia@rtems.org>
- #
- # Brief: Some cursery coverage tests of ifconfig...
- # Note: requires permissions to run modprobe and all ifconfig options
- # Commands used: grep, grep -i, ip link, ip tuntap, wc -l
- #
- # Possible improvements:
- # 1. Verify the dummy interface actually has the modified characteristics
- # instead of relying on ifconfig output
- # 2. Introduce more error cases, to verify ifconfig fails gracefully
- # 3. Do more complex calls to ifconfig, while mixing the order of the
- # arguments
- # 4. Cover more ifconfig options:
- # hw ether|infiniband ADDRESS - set LAN hardware address (AA:BB:CC...)
- # txqueuelen LEN - number of buffered packets before output blocks
- # Obsolete fields included for historical purposes:
- # irq|io_addr|mem_start ADDR - micromanage obsolete hardware
- # outfill|keepalive INTEGER - SLIP analog dialup line quality monitoring
- # metric INTEGER - added to Linux 0.9.10 with comment "never used", still true
- #testing "name" "command" "result" "infile" "stdin"
- [ -f testing.sh ] && . testing.sh
- if [ "$(id -u)" -ne 0 ]
- then
- echo "$SHOWSKIP: ifconfig (not root)"
- return 2>/dev/null
- exit
- fi
- # Add a dummy interface to test with
- modprobe dummy 2>/dev/null
- if ! ifconfig dummy0 up 2>/dev/null
- then
- echo "$SHOWSKIP: ifconfig dummy0 up failed"
- return 2>/dev/null
- exit
- fi
- # Results Expected: After calling ifconfig, no lines with dummy0 are displayed
- testing "Disable the dummy0 interface"
- "ifconfig dummy0 down && ifconfig | grep dummy | wc -l" "0\n" "" ""
- # Results Expected: After calling ifconfig, one line with dummy0 is displayed
- testing "Enable the dummy0 interface" \
- "ifconfig dummy0 up && ifconfig dummy0 | grep dummy | wc -l" "1\n" "" ""
- # Results Expected: After calling ifconfig dummy0, one line displays the ip
- # address selected
- testing "Set the ip address of the dummy0 interface" \
- "ifconfig dummy0 10.240.240.240 && ifconfig dummy0 | grep 10\.240\.240\.240 | wc -l" \
- "1\n" "" ""
- # Results Expected: After calling ifconfig dummy0, one line displays the
- # netmask selected
- testing "Change the netmask to the interface" \
- "ifconfig dummy0 netmask 255.255.240.0 && ifconfig dummy0 | grep 255\.255\.240\.0 | wc -l" \
- "1\n" "" ""
- # Results Expected: After calling ifconfig dummy0, one line displays the
- # broadcast address selected
- testing "Change the broadcast address to the interface" \
- "ifconfig dummy0 broadcast 10.240.240.255 && ifconfig dummy0 | grep 10\.240\.240\.255 | wc -l" \
- "1\n" "" ""
- # Test Description: Revert to the default ip address
- # Results Expected: After calling ifconfig dummy0, there are no lines
- # displaying the ip address previously selected
- testing "dummy0 default" \
- "ifconfig dummy0 default && ifconfig dummy0 | grep 10\.240\.240\.240 | wc -l" \
- "0\n" "" ""
- # Test Description: Change the Maximum transmission unit (MTU) of the interface
- # Results Expected: After calling ifconfig dummy0, there is one line with the
- # selected MTU
- testing "dummy0 mtu 1269" \
- "ifconfig dummy0 mtu 1269 && ifconfig dummy0 | grep 1269 | wc -l" \
- "1\n" "" ""
- # Test Description: ifconfig add for IPv6 fails with an mtu too small for IPv6.
- # Results Expected: Failure. No check for the exact error because old kernels
- # used ENOBUFS but 5.4 uses EINVAL.
- testing "dummy0 add ::2 -- too small mtu" \
- "ifconfig dummy0 add ::2 2>/dev/null || echo expected" "expected\n" "" ""
- # Test Description: Change the Maximum transmission unit (MTU) of the interface
- # Results Expected: After calling ifconfig dummy0, there is one line with the
- # selected MTU
- testing "dummy0 mtu 2000" \
- "ifconfig dummy0 mtu 2000 && ifconfig dummy0 | grep 2000 | wc -l" \
- "1\n" "" ""
- # Test Description: Verify ifconfig add succeeds with a larger mtu
- # Results Expected: after calling ifconfig dummy0, there is one line with the
- # selected ip address
- testing "dummy0 add ::2" \
- "ifconfig dummy0 add ::2/126 && ifconfig dummy0 | grep \:\:2/126 | wc -l" \
- "1\n" "" ""
- # Test Description: Verify ifconfig del removes the selected ip6 address
- # Results Expected: after calling ifconfig dummy0, there are no lines with the
- # selected ip address
- testing "dummy0 del ::2" \
- "ifconfig dummy0 del ::2/126 && ifconfig dummy0 | grep \:\:2/126 | wc -l" \
- "0\n" "" ""
- # Test Description: Remove the noarp flag and bring the interface down in
- # preparation for the next test
- # Results Expected: After calling ifconfig dummy0, there are no lines with the
- # NOARP flag
- testing "dummy0 arp down" \
- "ifconfig dummy0 arp down && ifconfig dummy0 | grep -i NOARP | wc -l" \
- "0\n" "" ""
- # Test Description: Call the pointopoint option with no argument
- # Results Expected: After calling ifconfig dummy0, there is one line with the
- # NOARP and UP flags
- # TODO: http://lists.landley.net/pipermail/toybox-landley.net/2014-November/003795.html
- #testing "dummy0 pointopoint" \
- #"ifconfig dummy0 pointopoint && ifconfig dummy0 | grep -i NOARP | grep -i UP | wc -l" \
- #"1\n" "" ""
- # Test Description: Test the pointopoint option and set the ipaddress
- # Results Expected: After calling ifconfig dummy0, there is one line with the
- # word inet and the selected ip address
- # TODO: http://lists.landley.net/pipermail/toybox-landley.net/2014-November/003795.html
- #testing "dummy0 pointopoint 127.0.0.2" \
- #"ifconfig dummy0 pointopoint 127.0.0.2 && ifconfig dummy0 | grep -i inet | grep -i 127\.0\.0\.2 | wc -l" \
- #"1\n" "" ""
- ####### Flags you can set on an interface (or -remove by prefixing with -): ###############
- # Test Description: Enable allmulti mode on the interface
- # Results Expected: After calling ifconfig dummy0, there is one line with the
- # allmulti flag
- testing "dummy0 allmulti" \
- "ifconfig dummy0 allmulti && ifconfig dummy0 | grep -i allmulti | wc -l" "1\n" \
- "" ""
- # Test Description: Disable multicast mode the interface
- # Results Expected: After calling ifconfig dummy0, there are no lines with the
- # allmulti flag
- testing "dummy0 -allmulti" \
- "ifconfig dummy0 -allmulti && ifconfig dummy0 | grep -i allmulti | wc -l" "0\n" \
- "" ""
- # Test Description: Disable NOARP mode on the interface
- # Results Expected: After calling ifconfig dummy0, there are no lines with the
- # NOARP flag
- testing "dummy0 arp" \
- "ifconfig dummy0 arp && ifconfig dummy0 | grep -i NOARP | wc -l" "0\n" \
- "" ""
- # Test Description: Enable NOARP mode on the interface
- # Results Expected: After calling ifconfig dummy0, there is one line with the
- # NOARP flag
- testing "dummy0 -arp" \
- "ifconfig dummy0 -arp && ifconfig dummy0 | grep -i NOARP | wc -l" "1\n" \
- "" ""
- # Test Description: Enable multicast mode on the interface
- # Results Expected: After calling ifconfig dummy0, there is one line with the
- # multicast flag
- testing "dummy0 multicast" \
- "ifconfig dummy0 multicast && ifconfig dummy0 | grep -i multicast | wc -l" \
- "1\n" "" ""
- # Test Description: Disable multicast mode the interface
- # Results Expected: After calling ifconfig dummy0, there are no lines with the
- # multicast flag
- testing "dummy0 -multicast" \
- "ifconfig dummy0 -multicast && ifconfig dummy0 | grep -i multicast | wc -l" \
- "0\n" "" ""
- # Test Description: Enable promiscuous mode the interface
- # Results Expected: After calling ifconfig dummy0, there is one line with the
- # promisc flag
- testing "dummy0 promisc" \
- "ifconfig dummy0 promisc && ifconfig dummy0 | grep -i promisc | wc -l" "1\n" \
- "" ""
- # Disable promiscuous mode the interface
- # Results Expected: After calling ifconfig dummy0, there are no lines with the
- # promisc flag
- testing "dummy0 -promisc" \
- "ifconfig dummy0 -promisc && ifconfig dummy0 | grep -i promisc | wc -l" "0\n" \
- "" ""
- # Disable the dummy interface
- ifconfig dummy0 down
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