tools/testing/selftests/net/mptcp/mptcp_lib.sh

   1 #! /bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3
   4 readonly KSFT_FAIL=1
   5 readonly KSFT_SKIP=4
   6
   7 # SELFTESTS_MPTCP_LIB_EXPECT_ALL_FEATURES env var can be set when validating all
   8 # features using the last version of the kernel and the selftests to make sure
   9 # a test is not being skipped by mistake.
  10 mptcp_lib_expect_all_features() {
  11         [ "${SELFTESTS_MPTCP_LIB_EXPECT_ALL_FEATURES:-}" = "1" ]
  12 }
  13
  14 # $1: msg
  15 mptcp_lib_fail_if_expected_feature() {
  16         if mptcp_lib_expect_all_features; then
  17                 echo "ERROR: missing feature: ${*}"
  18                 exit ${KSFT_FAIL}
  19         fi
  20
  21         return 1
  22 }
  23
  24 # $1: file
  25 mptcp_lib_has_file() {
  26         local f="${1}"
  27
  28         if [ -f "${f}" ]; then
  29                 return 0
  30         fi
  31
  32         mptcp_lib_fail_if_expected_feature "${f} file not found"
  33 }
  34
  35 mptcp_lib_check_mptcp() {
  36         if ! mptcp_lib_has_file "/proc/sys/net/mptcp/enabled"; then
  37                 echo "SKIP: MPTCP support is not available"
  38                 exit ${KSFT_SKIP}
  39         fi
  40 }