tools/testing/selftests/net/psock_snd.sh

   1 #!/bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3 #
   4 # Run a series of packet socket send regression tests
   5
   6 set -e
   7
   8 readonly mtu=1500
   9 readonly iphlen=20
  10 readonly udphlen=8
  11
  12 readonly vnet_hlen=10
  13 readonly eth_hlen=14
  14
  15 readonly mss="$((${mtu} - ${iphlen} - ${udphlen}))"
  16 readonly mss_exceeds="$((${mss} + 1))"
  17
  18 readonly max_mtu=65535
  19 readonly max_mss="$((${max_mtu} - ${iphlen} - ${udphlen}))"
  20 readonly max_mss_exceeds="$((${max_mss} + 1))"
  21
  22 # functional checks (not a full cross-product)
  23
  24 echo "dgram"
  25 ./in_netns.sh ./psock_snd -d
  26
  27 echo "dgram bind"
  28 ./in_netns.sh ./psock_snd -d -b
  29
  30 echo "raw"
  31 ./in_netns.sh ./psock_snd
  32
  33 echo "raw bind"
  34 ./in_netns.sh ./psock_snd -b
  35
  36 echo "raw qdisc bypass"
  37 ./in_netns.sh ./psock_snd -q
  38
  39 echo "raw vlan"
  40 ./in_netns.sh ./psock_snd -V
  41
  42 echo "raw vnet hdr"
  43 ./in_netns.sh ./psock_snd -v
  44
  45 echo "raw csum_off"
  46 ./in_netns.sh ./psock_snd -v -c
  47
  48 echo "raw csum_off with bad offset (fails)"
  49 (! ./in_netns.sh ./psock_snd -v -c -C)
  50
  51
  52 # bounds check: send {max, max + 1, min, min - 1} lengths
  53
  54 echo "raw min size"
  55 ./in_netns.sh ./psock_snd -l 0
  56
  57 echo "raw mtu size"
  58 ./in_netns.sh ./psock_snd -l "${mss}"
  59
  60 echo "raw mtu size + 1 (fails)"
  61 (! ./in_netns.sh ./psock_snd -l "${mss_exceeds}")
  62
  63 # fails due to ARPHRD_ETHER check in packet_extra_vlan_len_allowed
  64 #
  65 # echo "raw vlan mtu size"
  66 # ./in_netns.sh ./psock_snd -V -l "${mss}"
  67
  68 echo "raw vlan mtu size + 1 (fails)"
  69 (! ./in_netns.sh ./psock_snd -V -l "${mss_exceeds}")
  70
  71 echo "dgram mtu size"
  72 ./in_netns.sh ./psock_snd -d -l "${mss}"
  73
  74 echo "dgram mtu size + 1 (fails)"
  75 (! ./in_netns.sh ./psock_snd -d -l "${mss_exceeds}")
  76
  77 echo "raw truncate hlen (fails: does not arrive)"
  78 (! ./in_netns.sh ./psock_snd -t "$((${vnet_hlen} + ${eth_hlen}))")
  79
  80 echo "raw truncate hlen - 1 (fails: EINVAL)"
  81 (! ./in_netns.sh ./psock_snd -t "$((${vnet_hlen} + ${eth_hlen} - 1))")
  82
  83
  84 # gso checks: implies -l, because with gso len must exceed gso_size
  85
  86 echo "raw gso min size"
  87 ./in_netns.sh ./psock_snd -v -c -g -l "${mss_exceeds}"
  88
  89 echo "raw gso min size - 1 (fails)"
  90 (! ./in_netns.sh ./psock_snd -v -c -g -l "${mss}")
  91
  92 echo "raw gso max size"
  93 ./in_netns.sh ./psock_snd -v -c -g -l "${max_mss}"
  94
  95 echo "raw gso max size + 1 (fails)"
  96 (! ./in_netns.sh ./psock_snd -v -c -g -l "${max_mss_exceeds}")
  97
  98 echo "OK. All tests passed"