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serval-dna/testdefs.sh

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# Common definitions for all test suites.
# Copyright 2012 Serval Project Inc.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
shopt -s extglob
testdefs_sh=$(abspath "${BASH_SOURCE[0]}")
servald_source_root="${testdefs_sh%/*}"
servald_build_root="$servald_source_root"
servald_basename="servald"
servald_build_executable="$servald_build_root/$servald_basename"
export TFW_LOGDIR="${TFW_LOGDIR:-$servald_build_root/testlog}"
addr_localhost="127.0.0.1"
declare -a instance_stack=()
# Some useful string constants.
LF='
'
CR='
'
HT=' '
# Some useful regular expressions. These must work in grep(1) as basic
# expressions, and also in sed(1).
rexp_sid='[0-9a-fA-F]\{64\}'
rexp_id='[0-9a-fA-F]\{64\}'
rexp_did='[0-9+#]\{5,\}'
# Utility function for extracting information from the output of servald
# commands that return "key:value\n" pairs.
#
# extract_stdout_keyvalue_optional <varname> <key> [<delimiter>] <regular-expression>
#
# Examines the standard output of the last command executed using "execute" or
# any of its variants. If there is a line matching
# "<key><delimiter><regular-expression>\n" then assigns the part matched by
# <regular-expression> into the shell variable called <varname> and returns 0.
# Otherwise, leaves <varname> unchanged and returns 1.
#
# The default <delimimter> is ':'.
#
extract_stdout_keyvalue_optional() {
local _var="$1"
local _label="$2"
local _delim=':'
local _rexp="$3"
case $# in
3) ;;
4) _delim="$3"; _rexp="$4";;
*) error "invalid number of args";;
esac
local _label_re=$(escape_grep_basic "$_label")
local _delim_re=$(escape_grep_basic "$_delim")
local _line=$($GREP "^$_label_re$_delim_re" "$TFWSTDOUT")
local _value=
local _return=1
if [ -n "$_line" ]; then
_value="${_line#*$_delim}"
_return=0
if [ -n "$_var" ]; then
eval $_var="\$_value"
eval tfw_log "$_var=\$(shellarg "\${$_var}")"
fi
fi
return $_return
}
# Utility function for extracting information from the output of servald
# commands that return "key:value\n" pairs.
extract_stdout_keyvalue() {
local _label="$2"
assert --message="stdout of ($executed) contains valid '$_label:' line" --stdout extract_stdout_keyvalue_optional "$@"
}
# Parse the standard result set output produced by the immediately preceding command
# command into the following shell variables:
# NCOLS the number of columns
# NROWS the number of data rows (not counting headers)
# HEADER[c] the C-th header label, 0 <= C <= NCOLS-1
# <label>[R] where <label> is a header label with all non-alphanumerics
# replaced by underscore '_' and all alphas converted to upper case, eg,
# .author -> _AUTHOR, is the value of that column in the R-th row, 0 <=
# R < NROWS
#
# Warning: overwrites existing shell variables. Names of overwritten shell
# variables are derived directly from the output of the command, so cannot be
# controlled. If a prefix is supplied, all variables are prefixed with that.
unpack_stdout_list() {
local prefix="$1"
{
local n
read n
assertExpr --stdout --message="line 1: malformed list" "$n" '~' '^[0-9]\+$'
eval ${prefix}NCOLS=\"\$n\"
declare -a ${prefix}HEADER
local -a header
local oIFS="$IFS"
IFS=:
read -r -a header
IFS="$oIFS"
assertExpr --stdout --message="line 2: malformed list" "${#header[*]}" == "$n"
eval ${prefix}HEADER="(\"\${header[@]}\")"
local hdr
local -a colvars=()
for hdr in "${header[@]}"; do
hdr="${hdr//[^A-Za-z0-9_]/_}"
# hdr="${hdr^^*}" would do in Bash-4.0 and later
hdr="$(echo "$hdr" | tr a-z A-Z)"
colvars+=("$hdr")
done
local -a row
IFS=:
local i=0
while eval read -r -a row; do
local j=0
local val
for val in "${row[@]}"; do
eval ${prefix}${colvars[$j]}[$i]=\"\$val\"
let ++j
done
let ++i
done
IFS="$oIFS"
eval ${prefix}NROWS=$i
} <"$TFWSTDOUT"
}
# Utility function for creating servald fixtures:
# - set $servald variable (executable under test)
# - set the current instance to be "Z"
setup_servald() {
if ! [ -x "$servald_build_executable" ]; then
error "servald executable not present: $servald"
return 1
fi
export SERVALD_VAR="$TFWVAR/servald"
mkdir "$SERVALD_VAR"
servald="$SERVALD_VAR/$servald_basename" # The servald executable under test
cp -f "$servald_build_executable" "$servald"
unset SERVALD_OUTPUT_DELIMITER
unset SERVALD_SERVER_START_DELAY
unset SERVALD_SERVER_CHDIR
unset SERVALD_START_POST_SLEEP
unset SERVALD_LOG_FILE
unset SERVALD_KEYRING_PATH
unset SERVALD_KEYRING_READONLY
servald_instances_dir="$SERVALD_VAR/instance"
set_instance +Z
}
# Utility function for running servald:
# - executes $servald with the given arguments
execute_servald() {
execute --core-backtrace --executable=$servald "$@"
}
# Utility function for running servald and asserting no errors:
# - executes $servald with the given arguments
# - asserts that standard error contains no error messages
executeOk_servald() {
executeOk --core-backtrace --executable=$servald "$@"
assertStderrGrep --matches=0 --message="stderr of ($executed) contains no error messages" '^ERROR:'
}
# Utility function:
# - if the argument is a prefixed instance name "+X", then call set_instance
# "X" and return 0, otherwise leave the current instance unchanged and return 1
# Designed for use in functions that take an optional instance name as their
# first argument:
# func() {
# push_instance
# set_instance_fromarg "$1" && shift
# ...
# pop_instance
# }
# would be invoked as:
# func +A blah blah
# func +B wow wow
# func foo bar
set_instance_fromarg() {
case "$1" in
+[A-Z]) set_instance "$1"; return 0;;
esac
return 1
}
# Utility function:
# - push the current instance on the instance stack
push_instance() {
instance_stack+=("$instance_name")
}
# Utility function:
# - push the current instance on the instance stack and set the instance to the
# given arg
# - if set_instance fails, pops the instance stack before returning
# set_instance's exit status
push_and_set_instance() {
push_instance
set_instance "$@" && return 0
status=$?
pop_instance
return $status
}
# Utility function:
# - pop an instance off the instance stack
pop_instance() {
local n=${#instance_stack[*]}
if [ $n -eq 0 ]; then
error "instance stack underflow"
return $?
fi
let --n
set_instance +${instance_stack[$n]}
unset instance_stack[$n]
return 0
}
# Utility function:
# - create a temporary directory to contain all per-instance test files
# - set SERVALINSTANCE_PATH environment variable to name a directory within
# the per-instance test directory (but do not create it)
# - set other environment variables to support other functions defined in this
# script
set_instance() {
case "$1" in
'')
error "missing instance name argument"
return 1
;;
+[A-Z])
instance_arg="${1}"
instance_name="${instance_arg#+}"
instance_number=$((36#$instance_name - 9))
local servald_binary_var=servald${instance_name}
if [ -z "${!servald_binary_var}" ]; then
servald="$SERVALD_VAR/$servald_basename"
else
servald="$SERVALD_VAR/${!servald_binary_var}"
fi
if ! [ -x "$servald" ]; then
error "servald executable not present: $servald"
return 1
fi
tfw_log "# set instance = $instance_name, number = $instance_number"
export instance_dir="${servald_instances_dir?:}/$instance_name"
mkdir -p "$instance_dir"
export SERVALINSTANCE_PATH="$instance_dir/servald"
instance_servald_log="$instance_dir/servald.log"
instance_servald_pidfile="$SERVALINSTANCE_PATH/servald.pid"
return 0
;;
*)
error "malformed instance name argument, must be in form +[A-Z]"
return 1
;;
esac
}
# Composition function:
# - invoke a command once in many instances
# - in "--all" mode (default), returns the count of commands that returned
# nonzero (ie, failure count); this returns zero only if all commands in all
# instances return zero, ie, is an AND relation on success; this is
# guaranteed to invoke the command in all instances (unless terminated
# by a failed assertion)
# - in "--any" mode, returns zero as soon as any command returns zero; ie, is
# an OR relation on success; N.B. this may not invoke the command in all
# instances
foreach_instance() {
mode=all
case "$1" in
--any) mode=any; shift;;
--all) mode=all; shift;;
esac
local -a instances=()
while [ $# -ne 0 ]; do
case "$1" in
+[A-Z]) instances+=("$1"); shift;;
*) break;;
esac
done
push_instance
local ret=0
local I
for I in ${instances[*]}; do
set_instance $I
if tfw_run "$@"; then
case $mode in
any) break;;
esac
else
case $mode in
all) let ++ret;;
esac
fi
done
pop_instance
return $ret
}
# Composition function:
# - invoke a command once in every instance that contains a server pidfile
# - takes the same options as foreach_instance()
foreach_instance_with_pidfile() {
push_instance
local -a instances=()
if pushd "${servald_instances_dir?:}" >/dev/null; then
for name in *; do
set_instance "+$name"
get_servald_server_pidfile && instances+=("+$name")
done
popd >/dev/null
fi
pop_instance
foreach_instance "${instances[@]}" "$@"
}
# Utility function for setting up a fixture with a servald server process:
# - start a servald server process
# - assert that the pidfile is created and correct
# - set $servald_pid to the PID of the started server process
# - assert that the reported PID is actually a running servald process
start_servald_server() {
push_instance
set_instance_fromarg "$1" && shift
configure_servald_server
# Start servald server
local -a before_pids
local -a after_pids
get_servald_pids before_pids
tfw_log "# before_pids=$before_pids"
executeOk --core-backtrace servald_start "$@"
extract_stdout_keyvalue start_instance_path instancepath '.*'
extract_stdout_keyvalue start_pid pid '[0-9]\+'
assert [ "$start_instance_path" = "$SERVALINSTANCE_PATH" ]
get_servald_pids after_pids
tfw_log "# after_pids=$after_pids"
assert_servald_server_pidfile servald_pid
# Assert that the servald pid file is present.
assert --message="servald pidfile was created" [ -s "$instance_servald_pidfile" ]
assert --message="servald pidfile contains a valid pid" --dump-on-fail="$instance_servald_log" kill -0 "$servald_pid"
assert --message="servald start command returned correct pid" [ "$start_pid" -eq "$servald_pid" ]
# Assert that there is at least one new servald process running.
local apid bpid
local new_pids=
local pidfile_running=false
for apid in ${after_pids[*]}; do
local isnew=true
for bpid in ${before_pids[*]}; do
if [ "$apid" -eq "$bpid" ]; then
isnew=false
break
fi
done
if [ "$apid" -eq "$servald_pid" ]; then
tfw_log "# started servald process: pid=$servald_pid"
new_pids="$new_pids $apid"
pidfile_running=true
elif $isnew; then
tfw_log "# unknown new servald process: pid=$apid"
new_pids="$new_pids $apid"
fi
done
eval LOG$instance_name=$instance_servald_log
assert --message="a new servald process is running" --dump-on-fail="$instance_servald_log" [ -n "$new_pids" ]
assert --message="servald pidfile process is running" --dump-on-fail="$instance_servald_log" $pidfile_running
assert --message="servald log file $instance_servald_log is present" [ -r "$instance_servald_log" ]
tfw_log "# Started servald server process $instance_name, pid=$servald_pid"
pop_instance
}
# Utility function:
# - invoke "servald start" command with given args and suitable environment
servald_start() {
rm -r -f "$instance_dir/cache"
mkdir -p "$instance_dir/cache" || error "mkdir failed"
SERVALD_SERVER_CHDIR="$instance_dir" SERVALD_LOG_FILE="$instance_servald_log" $servald start "$@"
}
# Utility function:
# - test whether the daemon's HTTP server has started
servald_http_server_started() {
local logvar=LOG${1#+}
$GREP 'HTTP SERVER START.*port=[0-9]' "${!logvar}"
}
# Utility function:
# - test whether the daemon's HTTP server has started
servald_restful_http_server_started() {
local logvar=LOG${1#+}
$GREP 'HTTP SERVER START.*port=[0-9].*services=[^ ]*\<RESTful\>' "${!logvar}"
}
# Utility function:
# - fetch the daemon's HTTP server port number
get_servald_http_server_port() {
local _instance="$2"
[ -z "$_instance" ] || push_and_set_instance $_instance || return $?
local _var="$1"
local _port=$(<"$SERVALINSTANCE_PATH/proc/http_port")
assert --message="instance $instance_name HTTP server port number is known" [ -n "$_port" ]
if [ -n "$_var" ]; then
eval "$_var=\$_port"
tfw_log "$_var=$_port"
fi
[ -z "$_instance" ] || pop_instance
return 0
}
get_servald_restful_http_server_port() {
get_servald_http_server_port "$@"
}
# Utility function:
# - stop a servald server process instance in an orderly fashion
# - cat its log file into the test log
stop_servald_server() {
push_instance
set_instance_fromarg "$1" && shift
# Stop servald server
get_servald_server_pidfile servald_pid
local -a before_pids
local -a after_pids
get_servald_pids before_pids
tfw_log "# before_pids=$before_pids"
execute --core-backtrace $servald stop "$@"
extract_stdout_keyvalue stop_instance_path instancepath '.*'
assert [ "$stop_instance_path" = "$SERVALINSTANCE_PATH" ]
if [ -n "$servald_pid" ]; then
assertExitStatus '==' 0
extract_stdout_keyvalue stop_pid pid '[0-9]\+'
assert [ "$stop_pid" = "$servald_pid" ]
fi
tfw_log "# Stopped servald server process $instance_name, pid=${servald_pid:-unknown}"
get_servald_pids after_pids
tfw_log "# after_pids=$after_pids"
# Assert that the servald pid file is gone.
assert --message="servald pidfile was removed" [ ! -e "$instance_servald_pidfile" ]
# Assert that the servald process identified by the pidfile is no longer running.
local apid bpid
if [ -n "$servald_pid" ]; then
for apid in ${after_pids[*]}; do
assert --message="servald process still running" [ "$apid" -ne "$servald_pid" ]
done
fi
# Check there is at least one fewer servald processes running.
for bpid in ${before_pids[*]}; do
local isgone=true
for apid in ${after_pids[*]}; do
if [ "$apid" -eq "$bpid" ]; then
isgone=false
break
fi
done
if $isgone; then
tfw_log "# ended servald process: pid=$bpid"
fi
done
pop_instance
}
# Utility function:
# - cat a servald server log file and core dump information into the test log
report_servald_server() {
# Append the server log file to the test log.
[ -s "$instance_servald_log" ] && tfw_cat "$instance_servald_log"
# Append a core dump backtrace to the test log.
if [ -s "$instance_dir/core" ]; then
tfw_core_backtrace "$servald" "$instance_dir/core"
rm -f "$instance_dir/core"
fi
}
# Utility function:
# - test whether the pidfile for a given server instance exists and is valid
# - if it exists and is valid, set named variable to PID (and second named
# variable to path of pidfile) and return 0
# - otherwise return 1
get_servald_server_pidfile() {
local _pidvar="$1"
local _pidfilevar="$2"
push_instance
set_instance_fromarg "$1" && shift
local _pidfile="$instance_servald_pidfile"
pop_instance
[ -n "$_pidfilevar" ] && eval $_pidfilevar="\$_pidfile"
local _pid=$(cat "$_pidfile" 2>/dev/null)
case "$_pid" in
+([0-9]))
[ -n "$_pidvar" ] && eval $_pidvar="\$_pid"
return 0
;;
'')
if [ -e "$_pidfile" ]; then
tfw_log "# empty pidfile $_pidfile"
else
tfw_log "# missing pidfile $_pidfile"
fi
;;
*)
tfw_log "# invalid pidfile $_pidfile"
tfw_cat "$_pidfile"
;;
esac
return 1
}
# Assertion function:
# - asserts that the servald server pidfile exists and contains a valid PID
# - does NOT check whether a process with that PID exists or whether that
# process is a servald process
assert_servald_server_pidfile() {
assert get_servald_server_pidfile "$@"
}
# Assertion function:
# - assert that the given instance's server has the given status ('running' or 'stopped')
assert_servald_server_status() {
push_instance
set_instance_fromarg "$1" && shift
[ $# -eq 1 ] || error "invalid arguments"
executeOk_servald status
local status
extract_stdout_keyvalue status status '.*'
assert --message="instance +$instance_name servald server status is '$1'" [ "$status" = "$1" ]
pop_instance
}
# Assertion function:
# - asserts that all servald instances with a pidfile have a server in a given
# state
assert_status_all_servald_servers() {
foreach_instance_with_pidfile assert_servald_server_status "$@"
}
# Utility function for tearing down servald fixtures:
# - stop all servald server process instances in an orderly fashion
stop_all_servald_servers() {
foreach_instance_with_pidfile stop_servald_server
}
# Utility function for tearing down servald fixtures:
# - log a report of the execution of all servald server process instances
report_all_servald_servers() {
foreach_instance +{A..Z} report_servald_server
}
# Utility function for tearing down servald fixtures:
# - send a given signal to all running servald processes, identified by name
# - return 1 if no processes were present, 0 if any signal was sent
signal_all_servald_processes() {
local sig="$1"
local servald_pids
get_servald_pids servald_pids
local pid
local ret=1
for pid in $servald_pids; do
if kill -$sig "$pid"; then
tfw_log "# Sent SIG$sig to servald process pid=$pid"
ret=0
else
tfw_log "# servald process pid=$pid not running -- SIG$sig not sent"
fi
done
return $ret
}
# Utility function for tearing down servald fixtures:
# - wait while any servald processes remain
# - return 0 if no processes are present
# - 1 if the timeout elapses first
wait_all_servald_processes() {
local timeout="${1:-1000000}"
sleep $timeout &
sleep_pid=$!
while get_servald_pids; do
kill -0 $sleep_pid 2>/dev/null || return 1
sleep 0.1
done
kill -TERM $sleep_pid 2>/dev/null
return 0
}
# Utility function for tearing down servald fixtures:
# - terminate all running servald processes, identified by name, by sending
# two SIGHUPs 100ms apart, then another SIGHUP after 2 seconds, finally
# SIGKILL after 2 seconds
# - return 0 if no more processes are running, nonzero otherwise
kill_all_servald_processes() {
for delay in 0.1 2 2; do
signal_all_servald_processes HUP || return 0
wait_all_servald_processes $delay && return 0
done
signal_all_servald_processes KILL || return 0
return 1
}
# Utility function:
# - return the PIDs of all servald processes the current test is running, by
# assigning to the named array variable if given
# - return 0 if there are any servald processes running, 1 if not
get_servald_pids() {
local var="$1"
if [ -z "$servald" ]; then
error "\$servald is not set"
return 1
fi
local mypid=$$
# XXX The following line will not find any PIDs if there are spaces in "$servald".
local pids=$(ps -u$UID -o pid,args | $AWK -v mypid="$mypid" -v servald="$servald" '$1 != mypid && $2 == servald {print $1}')
[ -n "$var" ] && eval "$var=(\$pids)"
[ -n "$pids" ]
}
# Assertion function:
# - assert there are no existing servald server processes
assert_no_servald_processes() {
local pids
get_servald_pids pids
assert --message="no $servald_basename process(es) running" [ -z "$pids" ]
return 0
}
# Assertion function:
# - assert the given instance's servald server log contains no errors
assert_servald_server_no_errors() {
push_instance
set_instance_fromarg "$1" && shift
assertGrep --matches=0 --message="stderr of $servald_basename $instance_name contains no error messages" "$instance_servald_log" '^ERROR:'
pop_instance
}
# Assertion function:
# - assert that all instances of servald server logs contain no errors
assert_all_servald_servers_no_errors() {
push_instance
if pushd "${servald_instances_dir?:}" >/dev/null; then
for name in *; do
set_instance "+$name"
assertGrep --matches=0 --message="stderr of $servald_basename $instance_name contains no error messages" "$instance_servald_log" '^ERROR:'
done
popd >/dev/null
fi
pop_instance
}
# Utility function
#
# create_single_identity [--option]... [ DID [ Name ]]
#
# - create an identity in the current instance {I} by invoking the command:
# servald keyring add [--option]...
# - assign a phone number (DID) and name to the new identity, use defaults
# if not specified by arg1 and arg2
# - assert the new identity is the only one in this instance
# - set the SID{I} variable, eg SIDA, to the SID of the new identity
# - set the DID{I} variable, eg DIDA, to the phone number of the new identity
# - set the NAME{I} variable, eg NAMEA, to the name of the new identity
create_single_identity() {
local servald_options=()
while [ $# -gt 0 ]; do
case "$1" in
--*) servald_options+=("$1"); shift;;
*) break;;
esac
done
local sidvar=SID${instance_name}1
local idvar=ID${instance_name}1
local didvar=DID${instance_name}1
local namevar=NAME${instance_name}1
eval "$didvar=\"\${1-\$((5550000 + \$instance_number))}\""
eval "$namevar=\"\${2-Agent \$instance_name Smith}\""
create_identities "${servald_options[@]}" 1
eval "SID$instance_name=\"\${!sidvar}\""
eval "ID$instance_name=\"\${!idvar}\""
eval "DID$instance_name=\"\${!didvar}\""
eval "NAME$instance_name=\"\${!namevar}\""
sidvar=SID${instance_name}
idvar=ID${instance_name}
didvar=DID${instance_name}
namevar=NAME${instance_name}
tfw_log "SID$instance_name=$(shellarg "${!sidvar}")"
tfw_log "ID$instance_name=$(shellarg "${!idvar}")"
tfw_log "DID$instance_name=$(shellarg "${!didvar}")"
tfw_log "NAME$instance_name=$(shellarg "${!namevar}")"
}
# Utility function:
#
# create_identities [--option]... N
#
# - create N identities in the current instance {I} using N consecutive
# invocations of: servald keyring add [--option]...
# - pass [args...] to the keyring add
# - if variables DID{I}{1..N} and/or NAME{I}{1..N} are already set, then use
# them to set the DIDs and names of each identity
# - if variables PIN{I}{1..N} are already set, then use them as the --entry-pin
# option to set the DIDs and names of each identity
# - assert that all SIDs are unique
# - assert that all SIDs appear in keyring list
# - set variables SID{I}{1..N} to SIDs of identities, eg, SIDA1, SIDA2...
# - set variables DID{I}{1..N} to DIDs of identities, eg, DIDA1, DIDA2...
# - set variables NAME{I}{1..N} to names of identities, eg, NAMEA1, NAMEA2...
create_identities() {
local servald_options=()
while [ $# -gt 0 ]; do
case "$1" in
--*) servald_options+=("$1"); shift;;
*) break;;
esac
done
local N="$1"
case "$N" in
+([0-9]));;
*) error "invalid arg1: $N";;
esac
shift
local i j
for ((i = 1; i <= N; ++i)); do
local pinvar=PIN$instance_name$i
local pin="${!pinvar}"
servald_options+=(${pin:+--entry-pin="$pin"})
done
for ((i = 1; i <= N; ++i)); do
local pinvar=PIN$instance_name$i
local sidvar=SID$instance_name$i
local idvar=ID$instance_name$i
local didvar=DID$instance_name$i
local namevar=NAME$instance_name$i
local pin="${!pinvar}"
[ -n "$pin" ] && tfw_log "$pinvar=$(shellarg "$pin")"
executeOk_servald keyring add "${servald_options[@]}" "$pin"
assert [ -e "$SERVALINSTANCE_PATH/serval.keyring" ]
extract_stdout_keyvalue $sidvar sid "$rexp_sid"
extract_stdout_keyvalue $idvar identity "$rexp_id"
tfw_log "$sidvar=${!sidvar}"
# If the DID and/or NAME is already specified in the variables, then use
# them, otherwise extract the DID and NAME automatically generated by
# servald.
if [ -n "${!didvar+x}" -o -n "${!namevar+x}" ]; then
executeOk_servald keyring set did "${servald_options[@]}" "${!sidvar}" "${!didvar}" "${!namevar}"
eval "$didvar=\${!didvar}"
eval "$namevar=\${!namevar}"
tfw_log "$didvar=$(shellarg "${!didvar}")"
tfw_log "$namevar=$(shellarg "${!namevar}")"
else
extract_stdout_keyvalue_optional $didvar did "$rexp_did"
extract_stdout_keyvalue_optional $namevar name ".*"
fi
done
for ((i = 1; i <= N; ++i)); do
for ((j = 1; j <= N; ++j)); do
[ $i -ne $j ] && eval assert [ "\$SID$instance_name$i" != "\$SID$instance_name$j" ]
[ $i -ne $j ] && eval assert [ "\$ID$instance_name$i" != "\$ID$instance_name$j" ]
done
done
executeOk_servald keyring list "${servald_options[@]}"
for ((i = 1; i <= N; ++i)); do
local sidvar=SID$instance_name$i
local idvar=ID$instance_name$i
local didvar=DID$instance_name$i
local namevar=NAME$instance_name$i
local re_name=$(escape_grep_basic "${!namevar}")
assertStdoutGrep --matches=1 "^${!sidvar}:${!idvar}:${!didvar}:${re_name}\$"
done
}
# Assertion function:
# - asserts that the list contains N identities that have the correct format
assert_keyring_list() {
unpack_stdout_list __X
assert --stdout --stderr [ $__XNROWS -eq $1 ]
assertStdoutGrep --stderr --matches=$1 "^$rexp_sid:$rexp_id:\($rexp_did\)\?:.*\$"
}
# Utility function, to be overridden as needed:
# - set up the configuration immediately prior to starting a servald server process
# - called by start_servald_instances
configure_servald_server() {
add_servald_interface
}
add_servald_interface() {
local SOCKET_TYPE="dgram"
local INTERFACE="1"
local TYPE="wifi"
while [ $# -ne 0 ]; do
case "$1" in
--wifi) TYPE="wifi"; shift;;
--ethernet) TYPE="ethernet"; shift;;
--file) SOCKET_TYPE="file"; shift;;
*) INTERFACE="$1"; shift;;
esac
done
if [ "${SOCKET_TYPE}" == "file" ]; then
>>$SERVALD_VAR/dummy$INTERFACE
executeOk_servald config \
set server.interface_path $SERVALD_VAR \
set interfaces.$INTERFACE.socket_type $SOCKET_TYPE \
set interfaces.$INTERFACE.file dummy$INTERFACE \
set interfaces.$INTERFACE.type $TYPE \
set interfaces.$INTERFACE.dummy_address 127.0.$INTERFACE.$instance_number \
set interfaces.$INTERFACE.dummy_netmask 255.255.255.224
set interfaces.$INTERFACE.idle_tick_ms 500
else
mkdir -p "$SERVALD_VAR/dummy$INTERFACE/"
executeOk_servald config \
set server.interface_path $SERVALD_VAR \
set interfaces.$INTERFACE.socket_type $SOCKET_TYPE \
set interfaces.$INTERFACE.file dummy$INTERFACE/$instance_name \
set interfaces.$INTERFACE.type $TYPE \
set interfaces.$INTERFACE.idle_tick_ms 500
fi
}
# Utility function:
# - start a set of servald server processes running on a shared file interface
# and with its own private monitor and MDP abstract socket names
# - set variables DUMMYx to the full path name of shared dummy interface
# - set variables LOGx to the full path of server log file for instance x: LOGA,
# LOGB, etc,
# - wait for all instances to detect each other
# - assert that all instances are in each others' peer lists
start_servald_instances() {
push_instance
tfw_log "# start servald instances $*"
foreach_instance "$@" \
start_servald_server
# Now wait until they see each other.
foreach_instance "$@" \
wait_until --sleep=0.25 has_seen_instances "$@"
pop_instance
}
# Assertion function:
# - asserts that the current instance reports a peer list that contains all the
# SIDs of all the other instances
# - uses the SID{I}{1..N} variables set by create_instances()
assert_peers_are_instances() {
local I N
executeOk_servald id allpeers
for I; do
for ((N=1; 1; ++N)); do
local sidvar=SID${I#+}$N
[ -n "${!sidvar}" ] || break
assertStdoutGrep "${!sidvar}"
done
done
}
# Predicate function:
# - useful in combination with assert() and wait_until()
# - return true if the current instance has logged that it has seen all other instances via the
# selfannounce mechanism
has_seen_instances() {
local I N
executeOk_servald route print
for I; do
[ $I = $instance_arg ] && continue
for ((N=1; 1; ++N)); do
local sidvar=SID${I#+}$N
[ -n "${!sidvar}" ] || break
if ! grep "^${!sidvar}" $_tfw_tmp/stdout; then
return 1
fi
done
done
return 0
}
# Predicate function:
# - useful in combination with assert() and wait_until()
# - return true if all instances have logged that they have seen all other instances via the
# selfannounce mechanism
instances_see_each_other() {
foreach_instance "$@" has_seen_instances "$@"
}
# Setup function:
# - ensure that the given version of the curl(1) utility is available
# - remove all proxy settings
setup_curl() {
CURL=$(type -P curl) || error "curl(1) command is not present"
local minversion="${1?}"
local ver="$("$CURL" --version | tr '\n' ' ')"
case "$ver" in
curl\ *\ Protocols:*\ http\ *)
set -- $ver
tfw_cmp_version "$2" "$minversion"
case $? in
0|2)
export CURL
unset http_proxy
unset HTTP_PROXY
unset HTTPS_PROXY
unset ALL_PROXY
return 0
;;
esac
error "$CURL version $2 is not adequate (expecting $minversion or higher)"
;;
esac
error "cannot parse output of $CURL --version: $ver"
}
# Guard function:
CURL=
curl() {
[ -x "$CURL" ] || error "missing call to setup_curl in the fixture"
"$CURL" "$@"
}
# Setup function:
# - ensure that the netcat6 nc6(1) utility is available
setup_netcat6() {
NETCAT6=$(type -P nc6) || error "nc6(1) command is not present"
local minversion="${1:-1.0}"
local ver="$("$NETCAT6" --version | tr '\n' ' ')"
case "$ver" in
nc6\ version\ *)
set -- $ver
tfw_cmp_version "$3" "$minversion"
case $? in
0|2)
export NETCAT6
return 0
;;
esac
error "$NETCAT6 version $3 is not adequate (expecting $minversion or higher)"
;;
esac
error "cannot parse output of $NETCAT6 --version: $ver"
}
# Guard functions.
NETCAT6=
nc6() {
[ -x "$NETCAT6" ] || error "missing call to setup_netcat6 in the fixture"
"$NETCAT6" "$@"
}
nc() {
error "do not use nc; instead use nc6(1) after calling setup_netcat6 in the fixture"
}
netcat() {
error "do not use netcat; instead use nc6(1) after calling setup_netcat6 in the fixture"
}
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