Edit: /usr/bin/wsrep_sst_common (70141B)
# Copyright (C) 2017-2024 MariaDB
# Copyright (C) 2012-2015 Codership Oy
#
# 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; version 2 of the License.
#
# 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; see the file COPYING. If not, write to the
# Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston
# MA 02110-1335 USA.
# This is a common command line parser and common functions to
# be sourced by other SST scripts.
trap 'exit 32' HUP PIPE
trap 'exit 3' INT QUIT TERM
OS="$(uname)"
# Setting the paths for some utilities on CentOS
export PATH="${PATH:+$PATH:}/usr/local/bin:/usr/local/sbin:/bin:/sbin:/usr/bin:/usr/sbin"
if [ "$OS" != 'Darwin' ]; then
export LD_LIBRARY_PATH="${LD_LIBRARY_PATH:+$LD_LIBRARY_PATH:}/usr/local/lib:/lib:/usr/lib:/opt/lib"
fi
safe()
{
if [[ "${!1}" = *[\ \'\`\$]* ]]; then
wsrep_log_error "Invalid value for $1: ${!1}"
exit 21
fi
echo "${!1}"
}
commandex()
{
if [ -n "$BASH_VERSION" ]; then
command -v "$1" || :
elif [ -x "$1" ]; then
echo "$1"
else
which "$1" || :
fi
}
with_bash_42=0
with_printf=1
if [ -z "$BASH_VERSION" ]; then
[ -z "$(commandex printf)" ] && with_printf=0
else
[ "${BASH_VERSINFO[0]}" -eq 4 -a "${BASH_VERSINFO[1]}" -ge 2 -o \
"${BASH_VERSINFO[0]}" -gt 4 ] && with_bash_42=1
fi
wsrep_log()
{
local t
# echo everything to stderr so that it gets into common error log
# deliberately made to look different from the rest of the log
if [ "$OS" = 'Linux' ]; then
t=$(date '+%Y%m%d %H:%M:%S.%3N')
elif [ $with_bash_42 -ne 0 ]; then
printf -v t '%(%Y%m%d %H:%M:%S)T.000'
else
t=$(date '+%Y%m%d %H:%M:%S.000')
fi
echo "WSREP_SST: $* ($t)" >&2
}
wsrep_log_error()
{
wsrep_log "[ERROR] $*"
}
wsrep_log_warning()
{
wsrep_log "[WARNING] $*"
}
wsrep_log_info()
{
wsrep_log "[INFO] $*"
}
trim_string()
{
if [ -n "$BASH_VERSION" ]; then
local pattern="[![:space:]${2:-}]"
local x="${1#*$pattern}"
local z=${#1}
x=${#x}
if [ $x -ne $z ]; then
local y="${1%$pattern*}"
y=${#y}
x=$(( z-x-1 ))
y=$(( y-x+1 ))
echo "${1:$x:$y}"
else
echo ''
fi
else
local pattern="[[:space:]${2:-}]"
echo "$1" | sed -E "s/^$pattern+|$pattern+\$//g"
fi
}
trim_dir()
{
if [ -n "$BASH_VERSION" ]; then
local pattern="![:space:]${2:-}"
local x="${1#*[$pattern]}"
local z=${#1}
x=${#x}
if [ $x -ne $z ]; then
local y="${1%[$pattern/]*}"
y=${#y}
x=$(( z-x-1 ))
y=$(( y-x+1 ))
x="${1:$x:$y}"
[ -z "$x" ] && x='.'
echo "$x"
else
echo ''
fi
else
local pattern="[:space:]${2:-}"
local x=$(echo "$1" | sed -E "s/^[$pattern]+|[$pattern/]+\$//g")
if [ -n "$x" ]; then
echo "$x"
elif "${1#*/}" != "$1"; then
echo '.'
else
echo ''
fi
fi
}
trim_right()
{
if [ -n "$BASH_VERSION" ]; then
local pattern="[![:space:]${2:-}]"
local z=${#1}
local y="${1%$pattern*}"
y=${#y}
if [ $y -ne $z ]; then
y=$(( y+1 ))
echo "${1:0:$y}"
else
echo ''
fi
else
local pattern="[[:space:]${2:-}]"
echo "$1" | sed -E "s/$pattern+\$//g"
fi
}
trim_left()
{
if [ -n "$BASH_VERSION" ]; then
local pattern="[![:space:]${2:-}]"
local x="${1#*$pattern}"
local z=${#1}
x=${#x}
if [ $x -ne $z ]; then
x=$(( z-x-1 ))
echo "${1:$x:$z}"
else
echo ''
fi
else
local pattern="[[:space:]${2:-}]"
echo "$1" | sed -E "s/^$pattern+//g"
fi
}
to_minuses()
{
local x="$1"
local t="${1#*_}"
local r=""
while [ "$t" != "$x" ]; do
r="$r${x%%_*}-"
x="$t"
t="${t#*_}"
done
echo "$r$x"
}
WSREP_SST_OPT_BYPASS=0
WSREP_SST_OPT_PROGRESS=0
WSREP_SST_OPT_BINLOG=""
WSREP_SST_OPT_BINLOG_INDEX=""
WSREP_SST_OPT_LOG_BASENAME=""
WSREP_SST_OPT_DATA=""
WSREP_SST_OPT_AUTH="${WSREP_SST_OPT_AUTH:-}"
WSREP_SST_OPT_USER="${WSREP_SST_OPT_USER:-}"
WSREP_SST_OPT_PSWD="${WSREP_SST_OPT_PSWD:-}"
WSREP_SST_OPT_DEFAULT=""
WSREP_SST_OPT_DEFAULTS=""
WSREP_SST_OPT_EXTRA_DEFAULT=""
WSREP_SST_OPT_EXTRA_DEFAULTS=""
WSREP_SST_OPT_SUFFIX_DEFAULT=""
WSREP_SST_OPT_SUFFIX_VALUE=""
WSREP_SST_OPT_MYSQLD=""
WSREP_SST_OPT_PORT=""
WSREP_SST_OPT_ADDR=""
WSREP_SST_OPT_ADDR_PORT=""
WSREP_SST_OPT_HOST=""
WSREP_SST_OPT_HOST_UNESCAPED=""
ARIA_LOG_DIR=""
INNODB_DATA_HOME_DIR=$(trim_dir "${INNODB_DATA_HOME_DIR:-}")
INNODB_LOG_GROUP_HOME=$(trim_dir "${INNODB_LOG_GROUP_HOME:-}")
INNODB_UNDO_DIR=$(trim_dir "${INNODB_UNDO_DIR:-}")
INNODB_BUFFER_POOL=""
INNODB_BUFFER_POOL_SIZE=""
INNODB_FORCE_RECOVERY=""
INNOEXTRA=""
while [ $# -gt 0 ]; do
case "$1" in
'--address')
WSREP_SST_OPT_ADDR=$(trim_string "$2")
#
# Break address string into host:port/path parts
#
case "$WSREP_SST_OPT_ADDR" in
\[*)
# IPv6
# Remove the starting and ending square brackets, if present:
addr="${WSREP_SST_OPT_ADDR#\[}"
addr=$(trim_right "${addr%%\]*}")
# Some utilities and subsequent code require an address
# without square brackets:
readonly WSREP_SST_OPT_HOST_UNESCAPED="$addr"
# Square brackets are needed in most cases:
readonly WSREP_SST_OPT_HOST="[$addr]"
# Mark this address as IPv6:
readonly WSREP_SST_OPT_HOST_IPv6=1
# Let's remove the leading part that contains the host address:
remain="${WSREP_SST_OPT_ADDR#*\]}"
;;
*)
addr=$(trim_right "${WSREP_SST_OPT_ADDR%%[:/]*}")
readonly WSREP_SST_OPT_HOST="$addr"
readonly WSREP_SST_OPT_HOST_UNESCAPED="$addr"
readonly WSREP_SST_OPT_HOST_IPv6=0
# Let's remove the leading part that contains the host address:
remain="${WSREP_SST_OPT_ADDR#*[:/]}"
;;
esac
# If there is nothing but the address, then the remainder is empty:
[ "$remain" = "$WSREP_SST_OPT_ADDR" ] && remain=""
# Let's remove the ":" character that separates the port number
# from the hostname:
remain="${remain#:}"
# Extract the port number from the address - all characters
# up to "/" (if present):
WSREP_SST_OPT_ADDR_PORT="${remain%%/*}"
# If the "/" character is present, then the path is not empty:
if [ "$WSREP_SST_OPT_ADDR_PORT" != "$remain" ]; then
# This operation removes everything up to the "/" character,
# effectively removing the port number from the string:
readonly WSREP_SST_OPT_PATH="${remain#*/}"
else
readonly WSREP_SST_OPT_PATH=""
fi
WSREP_SST_OPT_ADDR_PORT=$(trim_right "$WSREP_SST_OPT_ADDR_PORT")
# Remove the module name part from the string, which ends with "/":
remain="${WSREP_SST_OPT_PATH#*/}"
# This operation removes the tail after the very first occurrence
# of the "/" character, inclusively:
readonly WSREP_SST_OPT_MODULE=$(trim_right "${WSREP_SST_OPT_PATH%%/*}")
# If there is one more "/" in the string, then everything before
# it will be the LSN, otherwise the LSN is empty:
if [ "$remain" != "$WSREP_SST_OPT_PATH" ]; then
# Extract the part that matches the LSN by removing all
# characters starting from the very first "/":
readonly WSREP_SST_OPT_LSN=$(trim_right "${remain%%/*}")
# Exctract everything after the first occurrence of
# the "/" character in the string:
source="$remain"
remain="${remain#*/}"
# If the remainder does not match the original string,
# then there is something else (the version number in
# our case):
if [ "$remain" != "$source" ]; then
# Let's extract the version number by removing the tail
# after the very first occurence of the "/" character
# (inclusively):
readonly WSREP_SST_OPT_SST_VER=$(trim_right "${remain%%/*}")
else
readonly WSREP_SST_OPT_SST_VER=""
fi
else
readonly WSREP_SST_OPT_LSN=""
readonly WSREP_SST_OPT_SST_VER=""
fi
shift
;;
'--bypass')
readonly WSREP_SST_OPT_BYPASS=1
;;
'--progress')
readonly WSREP_SST_OPT_PROGRESS=$(( $2 ))
shift
;;
'--datadir')
# Let's remove the trailing slash:
readonly WSREP_SST_OPT_DATA=$(trim_dir "$2")
shift
;;
'--aria-log-dir-path')
# Let's remove the trailing slash:
readonly ARIA_LOG_DIR=$(trim_dir "$2")
shift
;;
'--innodb-data-home-dir')
# Let's remove the trailing slash:
readonly INNODB_DATA_HOME_DIR=$(trim_dir "$2")
shift
;;
'--innodb-log-group-home-dir')
# Let's remove the trailing slash:
readonly INNODB_LOG_GROUP_HOME=$(trim_dir "$2")
shift
;;
'--innodb-undo-directory')
# Let's remove the trailing slash:
readonly INNODB_UNDO_DIR=$(trim_dir "$2")
shift
;;
'--innodb-buffer-pool-filename')
readonly INNODB_BUFFER_POOL=$(trim_string "$2")
shift
;;
'--innodb-buffer-pool-size')
readonly INNODB_BUFFER_POOL_SIZE=$(trim_string "$2")
shift
;;
'--defaults-file')
file=$(trim_string "$2")
readonly WSREP_SST_OPT_DEFAULT="$1=$file"
readonly WSREP_SST_OPT_DEFAULTS="$1='$file'"
shift
;;
'--defaults-extra-file')
file=$(trim_string "$2")
readonly WSREP_SST_OPT_EXTRA_DEFAULT="$1=$file"
readonly WSREP_SST_OPT_EXTRA_DEFAULTS="$1='$file'"
shift
;;
'--defaults-group-suffix')
suffix=$(trim_string "$2")
readonly WSREP_SST_OPT_SUFFIX_DEFAULT="$1=$suffix"
readonly WSREP_SST_OPT_SUFFIX_VALUE="$suffix"
shift
;;
'--host')
addr=$(trim_string "$2")
case "$addr" in
\[*)
# IPv6
# Remove the starting and ending square brackets, if present:
addr="${addr#\[}"
addr=$(trim_right "${addr%%\]*}")
# Some utilities and subsequent code require an address
# without square brackets:
readonly WSREP_SST_OPT_HOST_UNESCAPED="$addr"
# Square brackets are needed in most cases:
readonly WSREP_SST_OPT_HOST="[$addr]"
# Mark this address as IPv6:
readonly WSREP_SST_OPT_HOST_IPv6=1
;;
*)
readonly WSREP_SST_OPT_HOST="$addr"
readonly WSREP_SST_OPT_HOST_UNESCAPED="$addr"
readonly WSREP_SST_OPT_HOST_IPv6=0
;;
esac
WSREP_SST_OPT_ADDR="$addr"
shift
;;
'--local-port')
readonly WSREP_SST_OPT_LPORT=$(( $2 ))
shift
;;
'--parent')
readonly WSREP_SST_OPT_PARENT=$(( $2 ))
shift
;;
'--password')
WSREP_SST_OPT_PSWD="$2"
shift
;;
'--port')
readonly WSREP_SST_OPT_PORT=$(( $2 ))
shift
;;
'--role')
readonly WSREP_SST_OPT_ROLE=$(trim_string "$2")
shift
;;
'--socket')
readonly WSREP_SST_OPT_SOCKET=$(trim_string "$2")
shift
;;
'--user')
WSREP_SST_OPT_USER="$2"
shift
;;
'--gtid')
readonly WSREP_SST_OPT_GTID=$(trim_string "$2")
shift
;;
'--binlog'|'--log-bin')
readonly WSREP_SST_OPT_BINLOG=$(trim_string "$2")
shift
;;
'--binlog-index'|'--log-bin-index')
WSREP_SST_OPT_BINLOG_INDEX=$(trim_string "$2")
shift
;;
'--log-basename')
readonly WSREP_SST_OPT_LOG_BASENAME=$(trim_string "$2")
shift
;;
'--gtid-domain-id')
readonly WSREP_SST_OPT_GTID_DOMAIN_ID=$(trim_string "$2")
shift
;;
'--mysqld-args')
original_cmd=""
shift
cmd_tail=0
while [ $# -gt 0 ]; do
lname="${1#--}"
# "--" is interpreted as the end of the list of options:
if [ -z "$lname" ]; then
shift
if [ $# -gt 0 ]; then
# copy "--" to the output string:
original_cmd="$original_cmd --"
# All other arguments must be copied unchanged:
while [ $# -gt 0 ]; do
original_cmd="$original_cmd '$1'"
shift
done
fi
break
fi
# Make sure the argument does not start with "--", otherwise it
# is a long option, which is processed after this "if":
if [ "$lname" = "$1" ]; then
# Check if the argument is the short option or the short
# options list, starting with "-":
options="${1#-}"
if [ "$options" != "$1" -a -n "$options" ]; then
slist=""
while [ -n "$options" ]; do
# Let's separate the first character as the current
# option name:
if [ -n "$BASH_VERSION" ]; then
option="${options:0:1}"
elif [ $with_printf -ne 0 ]; then
option=$(printf '%.1s' "$options")
else
# If it's not bash and without printf,
# then we need to use slow external utilities:
option=$(echo "$options" | cut -c1)
fi
# And the subsequent characters consider option value:
value=""
if [ ${#options} -gt 0 ]; then
value="${options#?}"
fi
# Check for options without argument:
if [ "$option" != '?' -a \
"$option" != 'a' -a \
"$option" != 's' -a \
"$option" != 'v' ]
then
# If the option value is absent, then check
# the following argument:
if [ -z "$value" -a $# -gt 1 ]; then
# if the next argument does not start with
# the "-" character, then next argument is
# the current option value:
if [ "${2#-}" = "$2" ]; then
shift
value="$1"
elif [ "$2" = '--' ]; then
shift
if [ $# -gt 1 ]; then
cmd_tail=1
shift
value="$1"
fi
fi
fi
if [ "$option" = 'h' ]; then
if [ -z "$WSREP_SST_OPT_DATA" ]; then
MYSQLD_OPT_DATADIR=$(trim_dir "$value")
fi
elif [ "$option" != 'u' -a \
"$option" != 'P' ]
then
if [ $cmd_tail -ne 0 ]; then
option="$option --"
fi
if [ -z "$value" ]; then
slist="$slist$option"
elif [ -z "$slist" ]; then
slist="$option '$value'"
else
slist="$slist -$option '$value'"
fi
break
fi
if [ $cmd_tail -ne 0 ]; then
if [ -n "$slist" ]; then
slist="$slist --"
else
slist='-'
fi
fi
break
else
slist="$slist$option"
fi
options="$value"
done
if [ -n "$slist" ]; then
original_cmd="$original_cmd -$slist"
fi
elif [ -z "$options" ]; then
# We found an minus sign without any characters after it:
original_cmd="$original_cmd -"
else
# We found a value that does not start with a minus -
# it is a positional argument or the value of previous
# option. Copy it to output string (as is):
original_cmd="$original_cmd '$1'"
fi
shift
if [ $cmd_tail -ne 0 ]; then
# All other arguments must be copied unchanged:
while [ $# -gt 0 ]; do
original_cmd="$original_cmd '$1'"
shift
done
break
fi
continue
fi
# Now we are sure that we are working with an option
# that has a "long" name, so remove all characters after
# the first equal sign:
option="${1%%=*}"
# If the option name contains underscores, then replace
# them to minuses:
if [ "${option#*_}" != "$option" ]; then
option=$(to_minuses "$option")
fi
# The "--loose-" prefix should not affect the recognition
# of the option name:
if [ "${option#--loose-}" != "$option" ]; then
option="--${option#--loose-}"
fi
# Some options just need to be removed from the list:
if [ "$option" != '--defaults-file' -a \
"$option" != '--defaults-extra-file' -a \
"$option" != '--defaults-group-suffix' -a \
"$option" != '--user' -a \
"$option" != '--port' -a \
"$option" != '--socket' ]; then
value="${1#*=}"
if [ "$value" = "$1" ]; then
value=""
fi
# Let's fill in the variables containing important paths
# that might not have been passed through explicit parameters
# (+ removing the trailing slash in these paths). Many of these
# options are processed internally within scripts or passed
# explicitly to other programs, so we need to remove them
# from mysqld's argument list:
skip_mysqld_arg=0
case "$option" in
'--aria-log-dir-path')
if [ -z "$ARIA_LOG_DIR" ]; then
MYSQLD_OPT_ARIA_LOG_DIR=$(trim_dir "$value")
fi
skip_mysqld_arg=1
;;
'--innodb-data-home-dir')
if [ -z "$INNODB_DATA_HOME_DIR" ]; then
MYSQLD_OPT_INNODB_DATA_HOME_DIR=$(trim_dir "$value")
fi
skip_mysqld_arg=1
;;
'--innodb-log-group-home-dir')
if [ -z "$INNODB_LOG_GROUP_HOME" ]; then
MYSQLD_OPT_INNODB_LOG_GROUP_HOME=$(trim_dir "$value")
fi
skip_mysqld_arg=1
;;
'--innodb-undo-directory')
if [ -z "$INNODB_UNDO_DIR" ]; then
MYSQLD_OPT_INNODB_UNDO_DIR=$(trim_dir "$value")
fi
skip_mysqld_arg=1
;;
'--innodb-buffer-pool-filename')
if [ -z "$INNODB_BUFFER_POOL" ]; then
MYSQLD_OPT_INNODB_BUFFER_POOL=$(trim_string "$value")
fi
skip_mysqld_arg=1
;;
'--innodb-buffer-pool-size')
if [ -z "$INNODB_BUFFER_POOL_SIZE" ]; then
MYSQLD_OPT_INNODB_BUFFER_POOL_SIZE=$(trim_string "$value")
fi
skip_mysqld_arg=1
;;
'--innodb-force-recovery')
if [ -n "$value" -a "$value" != "0" ]; then
INNODB_FORCE_RECOVERY=$(trim_string "$value")
fi
skip_mysqld_arg=1
;;
'--log-bin')
if [ -z "$WSREP_SST_OPT_BINLOG" ]; then
MYSQLD_OPT_LOG_BIN=$(trim_string "$value")
fi
skip_mysqld_arg=1
;;
'--log-bin-index')
if [ -z "$WSREP_SST_OPT_BINLOG_INDEX" ]; then
MYSQLD_OPT_LOG_BIN_INDEX=$(trim_string "$value")
fi
skip_mysqld_arg=1
;;
'--log-basename')
if [ -z "$WSREP_SST_OPT_LOG_BASENAME" ]; then
MYSQLD_OPT_LOG_BASENAME=$(trim_string "$value")
fi
skip_mysqld_arg=1
;;
'--datadir')
if [ -z "$WSREP_SST_OPT_DATA" ]; then
MYSQLD_OPT_DATADIR=$(trim_dir "$value")
fi
skip_mysqld_arg=1
;;
esac
if [ $skip_mysqld_arg -eq 0 ]; then
original_cmd="$original_cmd '$1'"
fi
fi
shift
done
WSREP_SST_OPT_MYSQLD="${original_cmd# *}"
break
;;
*) # Must be command usage
# exit 1
;;
esac
shift
done
WSREP_TRANSFER_TYPE='SST'
[ $WSREP_SST_OPT_BYPASS -ne 0 ] && readonly WSREP_TRANSFER_TYPE='IST'
# Let's take the name of the current script as a base,
# removing the directory, extension and "wsrep_sst_" prefix:
WSREP_METHOD="${0##*/}"
WSREP_METHOD="${WSREP_METHOD%.*}"
readonly WSREP_METHOD="${WSREP_METHOD#wsrep_sst_}"
if [ -n "${WSREP_SST_OPT_ROLE+x}" ]; then
if [ "$WSREP_SST_OPT_ROLE" != 'donor' -a \
"$WSREP_SST_OPT_ROLE" != 'joiner' ]
then
wsrep_log_error "Unrecognized role: '$WSREP_SST_OPT_ROLE'"
exit 22 # EINVAL
fi
else
readonly WSREP_SST_OPT_ROLE='donor'
fi
readonly WSREP_SST_OPT_PROGRESS
# The same argument can be present on the command line several
# times, in this case we must take its last value:
if [ -n "${MYSQLD_OPT_ARIA_LOG_DIR:-}" -a \
-z "$ARIA_LOG_DIR" ]; then
readonly ARIA_LOG_DIR="$MYSQLD_OPT_ARIA_LOG_DIR"
fi
if [ -n "${MYSQLD_OPT_INNODB_DATA_HOME_DIR:-}" -a \
-z "$INNODB_DATA_HOME_DIR" ]; then
readonly INNODB_DATA_HOME_DIR="$MYSQLD_OPT_INNODB_DATA_HOME_DIR"
fi
if [ -n "${MYSQLD_OPT_INNODB_LOG_GROUP_HOME:-}" -a \
-z "$INNODB_LOG_GROUP_HOME" ]; then
readonly INNODB_LOG_GROUP_HOME="$MYSQLD_OPT_INNODB_LOG_GROUP_HOME"
fi
if [ -n "${MYSQLD_OPT_INNODB_UNDO_DIR:-}" -a \
-z "$INNODB_UNDO_DIR" ]; then
readonly INNODB_UNDO_DIR="$MYSQLD_OPT_INNODB_UNDO_DIR"
fi
if [ -n "${MYSQLD_OPT_INNODB_BUFFER_POOL:-}" -a \
-z "$INNODB_BUFFER_POOL" ]; then
readonly INNODB_BUFFER_POOL="$MYSQLD_OPT_INNODB_BUFFER_POOL"
fi
if [ -n "${MYSQLD_OPT_INNODB_BUFFER_POOL_SIZE:-}" -a \
-z "$INNODB_BUFFER_POOL_SIZE" ]; then
readonly INNODB_BUFFER_POOL_SIZE="$MYSQLD_OPT_INNODB_BUFFER_POOL_SIZE"
fi
if [ -n "${MYSQLD_OPT_LOG_BIN:-}" -a \
-z "$WSREP_SST_OPT_BINLOG" ]; then
readonly WSREP_SST_OPT_BINLOG="$MYSQLD_OPT_LOG_BIN"
fi
if [ -n "${MYSQLD_OPT_LOG_BIN_INDEX:-}" -a \
-z "$WSREP_SST_OPT_BINLOG_INDEX" ]; then
WSREP_SST_OPT_BINLOG_INDEX="$MYSQLD_OPT_LOG_BIN_INDEX"
fi
if [ -n "${MYSQLD_OPT_DATADIR:-}" -a \
-z "$WSREP_SST_OPT_DATA" ]; then
readonly WSREP_SST_OPT_DATA="$MYSQLD_OPT_DATADIR"
fi
if [ -n "${MYSQLD_OPT_LOG_BASENAME:-}" -a \
-z "$WSREP_SST_OPT_LOG_BASENAME" ]; then
readonly WSREP_SST_OPT_LOG_BASENAME="$MYSQLD_OPT_LOG_BASENAME"
fi
# If the --log-bin option is present without a value, then
# set WSREP_SST_OPT_BINLOG value using other arguments:
if [ -z "$WSREP_SST_OPT_BINLOG" -a -n "${MYSQLD_OPT_LOG_BIN+x}" ]; then
if [ -n "$WSREP_SST_OPT_LOG_BASENAME" ]; then
# If the WSREP_SST_OPT_BINLOG variable is not set, but
# --log-basename is present among the arguments to mysqld,
# then set WSREP_SST_OPT_BINLOG equal to the base name
# with the "-bin" suffix:
readonly WSREP_SST_OPT_BINLOG="$WSREP_SST_OPT_LOG_BASENAME-bin"
else
# Take the default name:
readonly WSREP_SST_OPT_BINLOG='mysql-bin'
fi
fi
# Reconstructing the command line arguments that control the innodb
# and binlog options:
if [ -n "$WSREP_SST_OPT_LOG_BASENAME" ]; then
if [ -n "$WSREP_SST_OPT_MYSQLD" ]; then
WSREP_SST_OPT_MYSQLD="--log-basename='$WSREP_SST_OPT_LOG_BASENAME' $WSREP_SST_OPT_MYSQLD"
else
WSREP_SST_OPT_MYSQLD="--log-basename='$WSREP_SST_OPT_LOG_BASENAME'"
fi
fi
if [ -n "$ARIA_LOG_DIR" ]; then
INNOEXTRA="$INNOEXTRA --aria-log-dir-path='$ARIA_LOG_DIR'"
fi
if [ -n "$INNODB_DATA_HOME_DIR" ]; then
INNOEXTRA="$INNOEXTRA --innodb-data-home-dir='$INNODB_DATA_HOME_DIR'"
fi
if [ -n "$INNODB_LOG_GROUP_HOME" ]; then
INNOEXTRA="$INNOEXTRA --innodb-log-group-home-dir='$INNODB_LOG_GROUP_HOME'"
fi
if [ -n "$INNODB_UNDO_DIR" ]; then
INNOEXTRA="$INNOEXTRA --innodb-undo-directory='$INNODB_UNDO_DIR'"
fi
if [ -n "$INNODB_BUFFER_POOL" ]; then
INNOEXTRA="$INNOEXTRA --innodb-buffer-pool-filename='$INNODB_BUFFER_POOL'"
fi
if [ -n "$INNODB_BUFFER_POOL_SIZE" ]; then
INNOEXTRA="$INNOEXTRA --innodb-buffer-pool-size='$INNODB_BUFFER_POOL_SIZE'"
fi
if [ -n "$WSREP_SST_OPT_BINLOG" ]; then
INNOEXTRA="$INNOEXTRA --log-bin='$WSREP_SST_OPT_BINLOG'"
if [ -n "$WSREP_SST_OPT_BINLOG_INDEX" ]; then
if [ -n "$WSREP_SST_OPT_MYSQLD" ]; then
WSREP_SST_OPT_MYSQLD="--log-bin-index='$WSREP_SST_OPT_BINLOG_INDEX' $WSREP_SST_OPT_MYSQLD"
else
WSREP_SST_OPT_MYSQLD="--log-bin-index='$WSREP_SST_OPT_BINLOG_INDEX'"
fi
fi
fi
readonly INNODB_FORCE_RECOVERY
readonly WSREP_SST_OPT_MYSQLD
get_binlog()
{
# if no command line argument and WSREP_SST_OPT_BINLOG is not set,
# try to get it from my.cnf:
if [ -z "$WSREP_SST_OPT_BINLOG" ]; then
WSREP_SST_OPT_BINLOG=$(parse_cnf '--mysqld' 'log-bin')
fi
# if no command line argument and WSREP_SST_OPT_BINLOG_INDEX is not set,
# try to get it from my.cnf:
if [ -z "$WSREP_SST_OPT_BINLOG_INDEX" ]; then
WSREP_SST_OPT_BINLOG_INDEX=$(parse_cnf '--mysqld' 'log-bin-index')
fi
# if no command line argument and WSREP_SST_OPT_LOG_BASENAME is not set,
# then try to get it from my.cnf:
if [ -z "$WSREP_SST_OPT_LOG_BASENAME" ]; then
WSREP_SST_OPT_LOG_BASENAME=$(parse_cnf '--mysqld' 'log-basename')
fi
if [ -z "$WSREP_SST_OPT_BINLOG" ]; then
# If the log-bin option is specified without a parameter,
# then we need to build the name of the index file according
# to the rules described in the server documentation:
if [ $(in_config '--mysqld' 'log-bin') -ne 0 ]; then
if [ -n "$WSREP_SST_OPT_LOG_BASENAME" ]; then
# If the WSREP_SST_OPT_BINLOG variable is not set, but
# --log-basename is present among the arguments of mysqld,
# then set WSREP_SST_OPT_BINLOG equal to the base name
# with the "-bin" suffix:
readonly WSREP_SST_OPT_BINLOG="$WSREP_SST_OPT_LOG_BASENAME-bin"
else
# Take the default name:
readonly WSREP_SST_OPT_BINLOG='mysql-bin'
fi
fi
fi
if [ -n "$WSREP_SST_OPT_BINLOG" ]; then
# If the name of the index file is not specified, then we will build
# it according to the specifications for the server:
if [ -z "$WSREP_SST_OPT_BINLOG_INDEX" ]; then
if [ -n "$WSREP_SST_OPT_LOG_BASENAME" ]; then
# If the WSREP_SST_OPT_BINLOG_INDEX variable is not set, but
# --log-basename is present among the arguments of mysqld,
# then set WSREP_SST_OPT_BINLOG_INDEX equal to the base name
# with the "-bin" suffix:
readonly WSREP_SST_OPT_BINLOG_INDEX="$WSREP_SST_OPT_LOG_BASENAME-bin.index"
else
# Use the default name (note that base of this name
# is already defined above):
readonly WSREP_SST_OPT_BINLOG_INDEX="$WSREP_SST_OPT_BINLOG.index"
fi
else
# Remove all directories from the index file path:
local filename="${WSREP_SST_OPT_BINLOG_INDEX##*/}"
# Check if the index file name contains the extension:
if [ "${filename%.*}" = "$filename" ]; then
# Let's add the default extension (".index"):
readonly WSREP_SST_OPT_BINLOG_INDEX="$WSREP_SST_OPT_BINLOG_INDEX.index"
else
readonly WSREP_SST_OPT_BINLOG_INDEX
fi
fi
fi
}
# Check the presence of the port value and, if necessary, transfer
# the port number from the address to the WSREP_SST_OPT_PORT variable
# or vice versa, and also, if necessary, substitute the missing port
# value into the address value:
if [ -n "$WSREP_SST_OPT_ADDR_PORT" ]; then
if [ -n "$WSREP_SST_OPT_PORT" ]; then
if [ "$WSREP_SST_OPT_PORT" != "$WSREP_SST_OPT_ADDR_PORT" ]; then
echo "WSREP_SST: [ERROR] port in --port=$WSREP_SST_OPT_PORT" \
"differs from port in --address=$WSREP_SST_OPT_ADDR" >&2
exit 2
fi
else
# If the address contains a port number, assign it to
# the corresponding variable:
readonly WSREP_SST_OPT_PORT="$WSREP_SST_OPT_ADDR_PORT"
fi
else
# If the port is missing, take the default port:
if [ -z "$WSREP_SST_OPT_PORT" ]; then
readonly WSREP_SST_OPT_PORT=4444
fi
WSREP_SST_OPT_ADDR_PORT="$WSREP_SST_OPT_PORT"
fi
# Let's construct a new value for the address with the port:
sst_path="${WSREP_SST_OPT_PATH:+/}$WSREP_SST_OPT_PATH"
WSREP_SST_OPT_ADDR="$WSREP_SST_OPT_HOST:$WSREP_SST_OPT_PORT$sst_path"
readonly WSREP_SST_OPT_ADDR
readonly WSREP_SST_OPT_ADDR_PORT
# try to use my_print_defaults, mysql and mysqldump that come
# with the sources (for MTR suite):
script_binary=$(dirname "$0")
SCRIPTS_DIR=$(cd "$script_binary"; pwd)
EXTRA_DIR="$SCRIPTS_DIR/../extra"
if [ -x "$SCRIPTS_DIR/my_print_defaults" ]; then
MY_PRINT_DEFAULTS="$SCRIPTS_DIR/my_print_defaults"
elif [ -x "$EXTRA_DIR/my_print_defaults" ]; then
MY_PRINT_DEFAULTS="$EXTRA_DIR/my_print_defaults"
else
MY_PRINT_DEFAULTS=$(commandex 'my_print_defaults')
if [ -z "$MY_PRINT_DEFAULTS" ]; then
wsrep_log_error "my_print_defaults not found in path"
exit 2
fi
fi
readonly MY_PRINT_DEFAULTS
wsrep_defaults="$WSREP_SST_OPT_DEFAULTS"
wsrep_defaults="$wsrep_defaults${WSREP_SST_OPT_EXTRA_DEFAULTS:+ }$WSREP_SST_OPT_EXTRA_DEFAULTS"
wsrep_defaults="$wsrep_defaults${WSREP_SST_OPT_SUFFIX_DEFAULT:+ }$WSREP_SST_OPT_SUFFIX_DEFAULT"
readonly WSREP_SST_OPT_CONF="${wsrep_defaults:+ }$wsrep_defaults"
wsrep_defaults="$WSREP_SST_OPT_DEFAULT"
wsrep_defaults="$wsrep_defaults${WSREP_SST_OPT_EXTRA_DEFAULT:+ }$WSREP_SST_OPT_EXTRA_DEFAULT"
wsrep_defaults="$wsrep_defaults${WSREP_SST_OPT_SUFFIX_DEFAULT:+ }$WSREP_SST_OPT_SUFFIX_DEFAULT"
readonly WSREP_SST_OPT_CONF_UNQUOTED="${wsrep_defaults:+ }$wsrep_defaults"
#
# User can specify mariabackup specific settings that will be used during sst
# process like encryption, etc. Parse such configuration option.
#
# 1st parameter: group (config file section like sst) or
# my_print_defaults argument (like --mysqld)
# 2nd parameter: var : name of the variable in the section, e.g. server-id
# 3rd parameter: default value for the parameter
#
parse_cnf()
{
local groups="$1"
local var="$2"
local reval=""
# normalize the variable names specified in the .cnf file
# (user can use '_' or '-', for example, log-bin or log_bin),
# then search for the last instance of the desired variable
# and finally get the value of that variable (if the variable
# was specified several times - we use only its last instance):
local pattern='BEGIN {OFS=FS="="} {sub(/^--loose/,"-",$0); gsub(/_/,"-",$1); if ($1=="--'"$var"'") lastval=substr($0,length($1)+2)} END {print lastval}'
while [ -n "$groups" ]; do
# Remove the largest suffix starting with the '|' character:
local group="${groups%%\|*}"
# Remove the remainder (the group name) from the rest
# of the groups list (as if it were a prefix):
if [ "$group" != "$groups" ]; then
groups="${groups#*\|}"
else
groups=""
fi
# If the group name is the same as the "mysqld" without "--" prefix,
# then try to use it together with the group suffix:
if [ "$group" = 'mysqld' -a -n "$WSREP_SST_OPT_SUFFIX_VALUE" ]; then
reval=$("$MY_PRINT_DEFAULTS" \
${WSREP_SST_OPT_DEFAULT:+"$WSREP_SST_OPT_DEFAULT"} \
${WSREP_SST_OPT_EXTRA_DEFAULT:+"$WSREP_SST_OPT_EXTRA_DEFAULT"} \
${WSREP_SST_OPT_SUFFIX_DEFAULT:+"$WSREP_SST_OPT_SUFFIX_DEFAULT"} \
"mysqld$WSREP_SST_OPT_SUFFIX_VALUE" | awk "$pattern")
if [ -n "$reval" ]; then
break
fi
fi
# Let's try to use the group name as it is:
reval=$("$MY_PRINT_DEFAULTS" \
${WSREP_SST_OPT_DEFAULT:+"$WSREP_SST_OPT_DEFAULT"} \
${WSREP_SST_OPT_EXTRA_DEFAULT:+"$WSREP_SST_OPT_EXTRA_DEFAULT"} \
${WSREP_SST_OPT_SUFFIX_DEFAULT:+"$WSREP_SST_OPT_SUFFIX_DEFAULT"} \
"$group" | awk "$pattern")
if [ -n "$reval" ]; then
break
fi
done
# Use default if we haven't found a value:
[ -z "$reval" ] && reval="${3:-}"
# Truncate spaces:
[ -n "$reval" ] && reval=$(trim_string "$reval")
echo "$reval"
}
#
# This function simply checks for the presence of the parameter
# in the config file, but does not return its value. It returns "1"
# (true) even if the parameter is present in the configuration file
# without a value:
#
in_config()
{
local groups="$1"
local var="$2"
local found=0
# normalize the variable names specified in the .cnf file
# (user can use '_' or '-', for example, log-bin or log_bin),
# then search for the last instance(s) of the desired variable:
local pattern='BEGIN {OFS=FS="="; found=0} {sub(/^--loose/,"-",$0); gsub(/_/,"-",$1); if ($1=="--'"$var"'") found=1} END {print found}'
while [ -n "$groups" ]; do
# Remove the largest suffix starting with the '|' character:
local group="${groups%%\|*}"
# Remove the remainder (the group name) from the rest
# of the groups list (as if it were a prefix):
if [ "$group" != "$groups" ]; then
groups="${groups#*\|}"
else
groups=""
fi
# If the group name is the same as the "mysqld" without "--" prefix,
# then try to use it together with the group suffix:
if [ "$group" = 'mysqld' -a -n "$WSREP_SST_OPT_SUFFIX_VALUE" ]; then
found=$("$MY_PRINT_DEFAULTS" \
${WSREP_SST_OPT_DEFAULT:+"$WSREP_SST_OPT_DEFAULT"} \
${WSREP_SST_OPT_EXTRA_DEFAULT:+"$WSREP_SST_OPT_EXTRA_DEFAULT"} \
${WSREP_SST_OPT_SUFFIX_DEFAULT:+"$WSREP_SST_OPT_SUFFIX_DEFAULT"} \
"mysqld$WSREP_SST_OPT_SUFFIX_VALUE" | awk "$pattern")
if [ $found -ne 0 ]; then
break
fi
fi
# Let's try to use the group name as it is:
found=$($MY_PRINT_DEFAULTS \
${WSREP_SST_OPT_DEFAULT:+"$WSREP_SST_OPT_DEFAULT"} \
${WSREP_SST_OPT_EXTRA_DEFAULT:+"$WSREP_SST_OPT_EXTRA_DEFAULT"} \
${WSREP_SST_OPT_SUFFIX_DEFAULT:+"$WSREP_SST_OPT_SUFFIX_DEFAULT"} \
"$group" | awk "$pattern")
if [ $found -ne 0 ]; then
break
fi
done
echo $found
}
# Get rid of incorrect values resulting from substitution
# in programs external to the script:
if [ "$WSREP_SST_OPT_USER" = '(null)' ]; then
WSREP_SST_OPT_USER=""
fi
if [ "$WSREP_SST_OPT_PSWD" = '(null)' ]; then
WSREP_SST_OPT_PSWD=""
fi
if [ "$WSREP_SST_OPT_AUTH" = '(null)' ]; then
WSREP_SST_OPT_AUTH=""
fi
# Let's read the value of the authentication string from the
# configuration file so that it does not go to the command line
# and does not appear in the ps output:
if [ -z "$WSREP_SST_OPT_AUTH" ]; then
WSREP_SST_OPT_AUTH=$(parse_cnf 'sst' 'wsrep-sst-auth')
fi
# Splitting WSREP_SST_OPT_AUTH as "user:password" pair:
if [ -n "$WSREP_SST_OPT_AUTH" ]; then
# Extract username as shortest prefix up to first ':' character:
WSREP_SST_OPT_AUTH_USER="${WSREP_SST_OPT_AUTH%%:*}"
if [ -z "$WSREP_SST_OPT_USER" ]; then
# if the username is not in the command line arguments,
# set the username and password using WSREP_SST_OPT_AUTH
# from the environment:
WSREP_SST_OPT_USER="$WSREP_SST_OPT_AUTH_USER"
WSREP_SST_OPT_PSWD="${WSREP_SST_OPT_AUTH#*:}"
elif [ "$WSREP_SST_OPT_USER" = "$WSREP_SST_OPT_AUTH_USER" ]; then
# If the username in the command line arguments and in
# the environment variable are the same, set the password
# if it was not specified in the command line:
if [ -z "$WSREP_SST_OPT_PSWD" ]; then
WSREP_SST_OPT_PSWD="${WSREP_SST_OPT_AUTH#*:}"
fi
else
# The username is passed through the command line and does
# not match the username in the environment variable - ignore
# the environment and rebuild the authentication parameters:
WSREP_SST_OPT_AUTH="$WSREP_SST_OPT_USER:$WSREP_SST_OPT_PSWD"
fi
fi
WSREP_SST_OPT_REMOTE_AUTH="${WSREP_SST_OPT_REMOTE_AUTH:-}"
WSREP_SST_OPT_REMOTE_USER=
WSREP_SST_OPT_REMOTE_PSWD=
if [ -n "$WSREP_SST_OPT_REMOTE_AUTH" ]; then
# Split auth string at the last ':'
WSREP_SST_OPT_REMOTE_USER="${WSREP_SST_OPT_REMOTE_AUTH%%:*}"
WSREP_SST_OPT_REMOTE_PSWD="${WSREP_SST_OPT_REMOTE_AUTH#*:}"
fi
readonly WSREP_SST_OPT_USER
readonly WSREP_SST_OPT_PSWD
readonly WSREP_SST_OPT_AUTH
readonly WSREP_SST_OPT_REMOTE_USER
readonly WSREP_SST_OPT_REMOTE_PSWD
readonly WSREP_SST_OPT_REMOTE_AUTH
if [ -n "$WSREP_SST_OPT_DATA" ]; then
SST_PROGRESS_FILE="$WSREP_SST_OPT_DATA/sst_in_progress"
else
SST_PROGRESS_FILE=""
fi
wsrep_cleanup_progress_file()
{
if [ -n "$SST_PROGRESS_FILE" -a -f "$SST_PROGRESS_FILE" ]; then
rm -f "$SST_PROGRESS_FILE" 2>/dev/null || :
fi
}
wsrep_check_program()
{
local prog="$1"
local cmd=$(commandex "$prog")
if [ -z "$cmd" ]; then
wsrep_log_error "'$prog' not found in path"
return 2 # no such file or directory
fi
}
wsrep_check_programs()
{
local ret=0
while [ $# -gt 0 ]; do
wsrep_check_program "$1" || ret=$?
shift
done
return $ret
}
wsrep_check_datadir()
{
if [ -z "$WSREP_SST_OPT_DATA" ]; then
wsrep_log_error \
"The '--datadir' parameter must be passed to the SST script"
exit 2
fi
}
get_openssl()
{
# If the OPENSSL_BINARY variable is already defined, just return:
if [ -n "${OPENSSL_BINARY+x}" ]; then
return 0
fi
# Let's look for openssl:
OPENSSL_BINARY=$(commandex 'openssl')
if [ -z "$OPENSSL_BINARY" ]; then
OPENSSL_BINARY='/usr/bin/openssl'
if [ ! -x "$OPENSSL_BINARY" ]; then
OPENSSL_BINARY=""
fi
fi
readonly OPENSSL_BINARY
}
#
# Generate a string equivalent to 16 random bytes
#
wsrep_gen_secret()
{
get_openssl
if [ -n "$OPENSSL_BINARY" ]; then
"$OPENSSL_BINARY" rand -hex 16
elif [ -n "$BASH_VERSION" ]; then
printf '%04x%04x%04x%04x%04x%04x%04x%04x' \
$RANDOM $RANDOM $RANDOM $RANDOM \
$RANDOM $RANDOM $RANDOM $RANDOM
elif [ $with_printf -ne 0 -a -n "$(commandex cksum)" ]; then
printf '%08x%08x%08x%08x' \
$(head -8 /dev/urandom | cksum | cut -d ' ' -f1) \
$(head -8 /dev/urandom | cksum | cut -d ' ' -f1) \
$(head -8 /dev/urandom | cksum | cut -d ' ' -f1) \
$(head -8 /dev/urandom | cksum | cut -d ' ' -f1)
else
wsrep_log_error "Unable to generate 16-byte secret"
exit 22
fi
}
#
# Checking if the address passed to us is local.
# If the second parameter is nonzero, then this function
# does not check for matches with local domain names:
#
is_local_ip()
{
# Rapid recognition of the most common cases:
[ "$1" = '127.0.0.1' -o \
"$1" = '127.0.0.2' -o \
"$1" = 'localhost' -o \
"$1" = '::1' ] && return 0
# If the address starts with "127." this is probably a local
# address, but we need to clarify what follows this prefix:
if [ "${1#127.}" != "$1" ]; then
# All 127.0.0.0/8 addresses are local:
if echo "$1" | grep -q -E '^127\.[0-9]+\.[0-9]+\.[0-9]+$'; then
return 0
fi
fi
# If the second parameter is nonzero, then we will skip
# the domain name check:
if [ "${2:-0}" -eq 0 ]; then
# We consider all the names of a given host to be local addresses:
[ "$1" = "$(hostname -s 2>/dev/null)" -o \
"$1" = "$(hostname -f 2>/dev/null)" -o \
"$1" = "$(hostname -d 2>/dev/null)" ] && return 0
fi
# If the address contains anything other than digits
# and separators, it is not a local address:
[ "${1#*[!0-9.]}" != "$1" ] && \
[ "${1#*[!0-9A-Fa-f:\[\]]}" != "$1" ] && return 1
# Now let's check if the given address is assigned to
# one of the network cards:
local ip_util=$(commandex 'ip')
if [ -n "$ip_util" ]; then
# ip address show ouput format is " inet[6]
/":
"$ip_util" address show \
| grep -o -E '^[[:space:]]*inet.?[[:space:]]+[^[:space:]]+/' \
| grep -qw -F -- "$1/" && return 0
else
local ifconfig_util=$(commandex 'ifconfig')
if [ -n "$ifconfig_util" ]; then
# ifconfig output format is " inet[6] ...":
"$ifconfig_util" \
| grep -o -E '^[[:space:]]*inet.?[[:space:]]+[^[:space:]]+' \
| grep -qw -F -- "$1" && return 0
fi
fi
return 1
}
check_sockets_utils()
{
# The presence of any of these utilities is enough for us:
lsof_available=0
sockstat_available=0
ss_available=0
raw_socket_check=0
if [ -n "$(commandex selinuxenabled)" ] && selinuxenabled; then
raw_socket_check=1
wsrep_log_info "/proc/net/tcp{,6} is being used directly to avoid excessive selinux AVC notices"
return 0
fi
socket_utility="$(commandex ss)"
if [ -n "$socket_utility" ]; then
socket_uname='ss'
ss_available=1
ss_opts='-nlp'
# Let's check that ss has an option to skip headers:
if $socket_utility -h 2>&1 | grep -qw -F -- '-H'; then
ss_available=2
ss_opts="${ss_opts}H"
fi
else
socket_utility="$(commandex sockstat)"
if [ -n "$socket_utility" ]; then
socket_uname='sockstat'
sockstat_available=1
sockstat_opts='-p'
if [ "$OS" = 'FreeBSD' ]; then
# sockstat in FreeBSD is different from other systems,
# let's denote it with a different value:
sockstat_available=2
sockstat_opts='-46lq -P tcp -p'
fi
else
socket_utility="$(commandex lsof)"
if [ -n "$socket_utility" ]; then
socket_uname='lsof'
lsof_available=1
lsof_opts='-Pnl'
# Let's check that lsof has an option to bypass blocking:
if $socket_utility -h 2>&1 | grep -qw -F -- '-b'; then
lsof_available=2
lsof_opts="$lsof_opts -b -w"
else
lsof_opts="$lsof_opts -S 10"
fi
else
wsrep_log_error "Neither lsof, nor sockstat, nor ss tool" \
"were found in the path. Make sure you have" \
"at least one of them installed."
exit 2 # ENOENT
fi
fi
fi
wsrep_log_info "'$socket_uname' is selected as a socket" \
"information utility."
}
#
# Check if the port is in the "listen" state.
# The first parameter is the PID of the process that should
# listen on the port - if it is not known, you can specify
# an empty string or zero.
# The second parameter is the port number.
# The third parameter is a list of the names of utilities
# (via "|") that can listen on this port during the state
# transfer.
#
check_port()
{
local pid="${1:-0}"
local port="$2"
local utils="$3"
[ $pid -le 0 ] && pid='[0-9]+'
local rc=2 # ENOENT
if [ $raw_socket_check -ne 0 ]; then
for key in $(awk -v p="$port" 'BEGIN { hex_port = sprintf(":%04X", p) } $2 ~ hex_port && $4 == "0A" { print $10 }' /proc/net/tcp /proc/net/tcp6); do
return 0
done
elif [ $ss_available -ne 0 ]; then
$socket_utility $ss_opts -t "( sport = :$port )" 2>/dev/null | \
grep -q -E "[[:space:]]users:[[:space:]]?\\(.*\\(\"($utils)[^[:space:]]*\"[^)]*,pid=$pid(,[^)]*)?\\)" && rc=0
elif [ $sockstat_available -ne 0 ]; then
if [ $sockstat_available -gt 1 ]; then
# The sockstat command on FreeBSD does not return
# the connection state without special option, but
# it supports filtering by connection state:
local out
out=$($socket_utility $sockstat_opts "$port" 2>/dev/null) || rc=16 # EBUSY
# On FreeBSD, the sockstat utility may exit without
# any output due to locking issues in certain versions;
# let's return a special exit code in such cases:
if [ $rc -eq 16 -o -z "$out" ]; then
return 16 # EBUSY
fi
echo "$out" | \
grep -q -E "^[^[:space:]]+[[:space:]]+($utils)[^[:space:]]*[[:space:]]+$pid([[:space:]]|\$)" && rc=0
else
$socket_utility $sockstat_opts "$port" 2>/dev/null | \
grep -q -E "^[^[:space:]]+[[:space:]]+($utils)[^[:space:]]*[[:space:]]+$pid([[:space:]].+)?[[:space:]]LISTEN([[:space:]]|\$)" && rc=0
fi
elif [ $lsof_available -ne 0 ]; then
$socket_utility $lsof_opts -i ":$port" 2>/dev/null | \
grep -q -E "^($utils)[^[:space:]]*[[:space:]]+$pid([[:space:]].+)?[[:space:]]\\(LISTEN\\)([[:space:]]|\$)" && rc=0
else
wsrep_log_error "Unknown sockets utility"
exit 2 # ENOENT
fi
return $rc
}
#
# If the ssl_dhparams variable is already set, uses that as a source
# of dh parameters for OpenSSL. Otherwise, looks for dhparams.pem in
# the datadir, and creates it there if it can't find the file.
#
check_for_dhparams()
{
ssl_dhparams="$DATA/dhparams.pem"
get_openssl
if [ -n "$OPENSSL_BINARY" ]; then
wsrep_log_info \
"Could not find dhparams file, creating $ssl_dhparams"
local bug=0
local errmsg
errmsg=$("$OPENSSL_BINARY" \
dhparam -out "$ssl_dhparams" -dsaparam 2048 2>&1) || bug=1
if [ $bug -ne 0 ]; then
wsrep_log_info "run: \"$OPENSSL_BINARY\" dhparam"\
"-out \"$ssl_dhparams\" -dsaparam 2048"
wsrep_log_info "output: $errmsg"
wsrep_log_error "******** ERROR *****************************************"
wsrep_log_error "* Could not create the dhparams.pem file with OpenSSL. *"
wsrep_log_error "********************************************************"
ssl_dhparams=""
fi
else
# Rollback: if openssl is not installed, then use
# the default parameters:
ssl_dhparams=""
fi
}
#
# Verifies that the CA file verifies the certificate.
# Doing this here lets us generate better error messages.
#
# 1st param: path to the CA file.
# 2nd param: path to the certificate.
#
verify_ca_matches_cert()
{
local cert="$1"
local ca="$2"
local cap="$3"
local readable=1; [ ! -r "$cert" ] && readable=0
[ -n "$ca" -a ! -r "$ca" ] && readable=0
[ -n "$cap" -a ! -r "$cap" ] && readable=0
if [ $readable -eq 0 ]; then
wsrep_log_error \
"Both PEM file and CA file (or path) must be readable"
exit 22
fi
# If the openssl utility is not installed, then
# we will not do this certificate check:
get_openssl
if [ -z "$OPENSSL_BINARY" ]; then
wsrep_log_info "openssl utility not found"
return
fi
local not_match=0
local errmsg
# -untrusted lets intermediate CAs bundled after the leaf complete the
# chain to the CA. Safe despite the name: these are only candidate links,
# still rejected unless signed back to the trusted CA (-CAfile).
errmsg=$("$OPENSSL_BINARY" verify -verbose \
${ca:+ -CAfile} ${ca:+ "$ca"} \
${cap:+ -CApath} ${cap:+ "$cap"} \
-untrusted "$cert" \
"$cert" 2>&1) || not_match=1
if [ $not_match -eq 1 ]; then
wsrep_log_info "run: \"$OPENSSL_BINARY\" verify -verbose${ca:+ -CAfile \"$ca\"}${cap:+ -CApath \"$cap\"} \"$cert\""
wsrep_log_info "output: $errmsg"
wsrep_log_error "******** FATAL ERROR ********************************************"
wsrep_log_error "* The certifcate and CA (certificate authority) do not match. *"
wsrep_log_error "* It does not appear that the certificate was issued by the CA. *"
wsrep_log_error "* Please check your certificate and CA files. *"
wsrep_log_error "*****************************************************************"
exit 22
fi
}
#
# Verifies that the certificate matches the private key.
# Doing this will save us having to wait for a timeout that would
# otherwise occur.
#
# 1st param: path to the certificate.
# 2nd param: path to the private key.
#
verify_cert_matches_key()
{
local cert="$1"
local key="$2"
if [ ! -r "$key" -o ! -r "$cert" ]; then
wsrep_log_error "Both the certificate file and the key file" \
"must be readable"
exit 22
fi
# If the openssl utility is not installed, then
# we will not do this certificate check:
get_openssl
if [ -z "$OPENSSL_BINARY" ]; then
wsrep_log_info "openssl utility not found"
return
fi
# Generate the public key from the cert and the key.
# They should match (otherwise we can't create an SSL connection).
local pk1=$("$OPENSSL_BINARY" x509 -in "$cert" -pubkey -noout 2>/dev/null || :)
local pk2=$("$OPENSSL_BINARY" pkey -in "$key" -pubout 2>/dev/null || :)
if [ "$pk1" != "$pk2" ]; then
wsrep_log_error "******************* FATAL ERROR *****************"
wsrep_log_error "* The certificate and private key do not match. *"
wsrep_log_error "* Please check your certificate and key files. *"
wsrep_log_error "*************************************************"
exit 22
fi
}
#
# Compares two version strings.
# The first parameter is the version to be checked;
# The second parameter is the minimum version required;
# Returns 1 (failure) if $1 >= $2, 0 (success) otherwise.
#
check_for_version()
{
local y1="${1#*.}"
[ "$y1" = "$1" ] && y1=""
local z1="${y1#*.}"
[ "$z1" = "$y1" ] && z1=""
local w1="${z1#*.}"
[ "$w1" = "$z1" ] && w1=""
local x1="${1%%.*}"
y1="${y1%%.*}"
z1="${z1%%.*}"
w1="${w1%%.*}"
[ -z "$y1" ] && y1=0
[ -z "$z1" ] && z1=0
[ -z "$w1" ] && w1=0
local y2="${2#*.}"
[ "$y2" = "$2" ] && y2=""
local z2="${y2#*.}"
[ "$z2" = "$y2" ] && z2=""
local w2="${z2#*.}"
[ "$w2" = "$z2" ] && w2=""
local x2="${2%%.*}"
y2="${y2%%.*}"
z2="${z2%%.*}"
w2="${w2%%.*}"
[ -z "$y2" ] && y2=0
[ -z "$z2" ] && z2=0
[ -z "$w2" ] && w2=0
[ $x1 -lt $x2 ] && return 1
[ $x1 -gt $x2 ] && return 0
[ $y1 -lt $y2 ] && return 1
[ $y1 -gt $y2 ] && return 0
[ $z1 -lt $z2 ] && return 1
[ $z1 -gt $z2 ] && return 0
[ $w1 -lt $w2 ] && return 1
return 0
}
#
# Check whether process is still running.
# The first parameter contains the name of the PID file.
# The second parameter is the flag of the need to delete
# the PID file.
# If the second parameter is not zero and not empty,
# then if the process terminates, the corresponding
# PID file will be deleted.
# This function also sets the CHECK_PID variable to zero
# if the process has already exited, or writes the PID
# of the process there if it is still running.
#
check_pid()
{
local pid_file="$1"
if [ -r "$pid_file" ]; then
local pid=$(cat "$pid_file" 2>/dev/null || :)
if [ -n "$pid" ]; then
if [ $pid -gt 0 ]; then
if ps -p $pid >/dev/null 2>&1; then
CHECK_PID=$pid
return 0
fi
fi
fi
local remove=${2:-0}
if [ $remove -ne 0 ]; then
rm -f "$pid_file" || :
fi
fi
local config="${3:-}"
if [ -n "$config" -a -f "$config" ]; then
rm -f "$config" || :
fi
CHECK_PID=0
return 1
}
#
# Checking that the process with the specified PID is still
# running and killing it in this case by sending SIGTERM
# (using the "kill" operation).
# The first parameter contains PID of the process.
# The second and third parameters (both optional) are the names
# of the PID and the configuration files, which should be removed
# after the process ends.
# If the first parameter (PID of the process) is zero, then
# the function immediately deletes the PID and the configuration
# files (if specified), without any additional checks.
#
cleanup_pid()
{
local pid=$1
local pid_file="${2:-}"
local config="${3:-}"
if [ $pid -gt 0 ]; then
if ps -p $pid >/dev/null 2>&1; then
if kill $pid >/dev/null 2>&1; then
sleep 0.5
local round=0
local force=0
while ps -p $pid >/dev/null 2>&1; do
sleep 1
round=$(( round+1 ))
if [ $round -eq 16 ]; then
if [ $force -eq 0 ]; then
round=8
force=1
kill -9 $pid >/dev/null 2>&1 || :
sleep 0.5
else
return 1
fi
fi
done
elif ps -p $pid >/dev/null 2>&1; then
wsrep_log_warning "Unable to kill PID=$pid${pid_file:+ ($pid_file)}"
return 1
fi
fi
fi
[ -n "$pid_file" -a -f "$pid_file" ] && rm -f "$pid_file" || :
[ -n "$config" -a -f "$config" ] && rm -f "$config" || :
return 0
}
nproc=""
get_proc()
{
if [ -z "$nproc" ]; then
set +e
if [ "$OS" = 'Linux' ]; then
nproc=$(grep -cw -E '^processor' /proc/cpuinfo 2>/dev/null || :)
elif [ "$OS" = 'Darwin' -o "$OS" = 'FreeBSD' ]; then
nproc=$(sysctl -n hw.ncpu)
fi
set -e
if [ -z "$nproc" ] || [ $nproc -eq 0 ]; then
nproc=1
fi
fi
}
check_server_ssl_config()
{
# backward-compatible behavior:
tcert=$(parse_cnf 'sst' 'tca')
tcap=$(parse_cnf 'sst' 'tcapath')
tpem=$(parse_cnf 'sst' 'tcert')
tkey=$(parse_cnf 'sst' 'tkey')
# reading new ssl configuration options:
local tcert2=$(parse_cnf "$encgroups" 'ssl-ca')
local tcap2=$(parse_cnf "$encgroups" 'ssl-capath')
local tpem2=$(parse_cnf "$encgroups" 'ssl-cert')
local tkey2=$(parse_cnf "$encgroups" 'ssl-key')
# if there are no old options, then we take new ones:
if [ -z "$tcert" -a -z "$tcap" -a -z "$tpem" -a -z "$tkey" ]; then
tcert="$tcert2"
tcap="$tcap2"
tpem="$tpem2"
tkey="$tkey2"
# checking for presence of the new-style SSL configuration:
elif [ -n "$tcert2" -o -n "$tcap2" -o -n "$tpem2" -o -n "$tkey2" ]; then
if [ "$tcert" != "$tcert2" -o \
"$tcap" != "$tcap2" -o \
"$tpem" != "$tpem2" -o \
"$tkey" != "$tkey2" ]
then
wsrep_log_info \
"new ssl configuration options (ssl-ca[path], ssl-cert" \
"and ssl-key) are ignored by SST due to presence" \
"of the tca[path], tcert and/or tkey in the [sst] section"
fi
fi
# Role-specific overrides: the joiner is the TLS server (listener),
# the donor the TLS client (connector). Allow a distinct cert, key
# and CA per role for setups where they differ.
if [ "$WSREP_SST_OPT_ROLE" = 'joiner' ]; then
tcert=$(parse_cnf "$encgroups" 'ssl-server-ca' "$tcert")
tcap=$(parse_cnf "$encgroups" 'ssl-server-capath' "$tcap")
tpem=$(parse_cnf "$encgroups" 'ssl-server-cert' "$tpem")
tkey=$(parse_cnf "$encgroups" 'ssl-server-key' "$tkey")
else
tcert=$(parse_cnf "$encgroups" 'ssl-client-ca' "$tcert")
tcap=$(parse_cnf "$encgroups" 'ssl-client-capath' "$tcap")
tpem=$(parse_cnf "$encgroups" 'ssl-client-cert' "$tpem")
tkey=$(parse_cnf "$encgroups" 'ssl-client-key' "$tkey")
fi
if [ -n "$tcert" ]; then
if [ "${tcert%/}" != "$tcert" -o -d "$tcert" ]; then
tcap="$tcert"
tcert=""
fi
fi
}
# Get Common Name (CN) from the certificate:
openssl_getCN()
{
get_openssl
if [ -z "$OPENSSL_BINARY" ]; then
wsrep_log_error \
'openssl not found but it is required for authentication'
exit 42
fi
local bug=0
local CN=$("$OPENSSL_BINARY" x509 -noout -subject -in "$1" 2>&1) || bug=1
if [ $bug -ne 0 ]; then
wsrep_log_info "run: \"$OPENSSL_BINARY\" x509 -noout -subject -in \"$1\""
wsrep_log_info "output: $CN"
wsrep_log_error "******** FATAL ERROR **********************************************"
wsrep_log_error "* Unable to parse the certificate file to obtain the common name. *"
wsrep_log_error "*******************************************************************"
exit 22
fi
CN=$(trim_string "$CN")
if [ -n "$CN" ]; then
# If the string begins with the "subject" prefix
# then we need to remove it:
local saved="$CN"
local remain="${CN#subject}"
if [ "$remain" != "$saved" ]; then
remain=$(trim_left "$remain")
# Now let's check for the presence of "=" character
# after the "subject":
saved="$remain"
remain="${remain#=}"
if [ "$remain" != "$saved" ]; then
remain=$(trim_left "$remain")
else
remain=""
bug=1
fi
fi
while [ -n "$remain" ]; do
local value=""
# Let's extract the option name - all characters
# up to the first '=' or ',' character (if present):
local option="${remain%%[=,]*}"
if [ "$option" != "$remain" ]; then
option=$(trim_right "$option")
# These variables will be needed to determine
# which separator comes first:
local x="${remain#*=}"
local y="${remain#*,}"
local z=${#remain}
x=${#x}; [ $x -eq $z ] && x=0
y=${#y}; [ $y -eq $z ] && y=0
# The remaining string is everything that follows
# the separator character:
remain=$(trim_left "${remain#*[=,]}")
# Let's check what we are dealing with - an equal
# sign or a comma?
if [ $x -gt $y ]; then
# If the remainder begins with a double quote,
# then there is a string containing commas and
# we need to parse it:
saved="$remain"
remain="${remain#\"}"
if [ "$remain" != "$saved" ]; then
while :; do
# We need to find the closing quote:
local prefix="$remain"
remain="${remain#*\"}"
# Let's check if there is a closing quote?
if [ "$remain" = "$prefix" ]; then
bug=1
break
fi
# Everything up to the closing quote is
# the next part of the value:
value="$value${prefix%%\"*}"
# But if the last character of the value
# is a backslash, then it is a quoted quotation
# mark and we need to add it to the value:
if [ "${value%\\}" != "$value" ]; then
value="$value\""
else
break
fi
done
[ $bug -ne 0 ] && break
# Now we have to remove "," if it is present
# in the string after the value:
saved=$(trim_left "$remain")
remain="${saved#,}"
if [ "$remain" != "$saved" ]; then
remain=$(trim_left "$remain")
elif [ -n "$remain" ]; then
bug=1
break
fi
else
# We are dealing with a simple unquoted string value,
# therefore we need to take everything up to the end
# of the string, or up to the next comma character:
value="${remain%%,*}"
if [ "$value" != "$remain" ]; then
remain=$(trim_left "${remain#*,}")
else
remain=""
fi
value=$(trim_right "$value")
fi
if [ "$option" = 'CN' -a -n "$value" ]; then
echo "$value"
return
fi
fi
else
remain=""
fi
done
fi
if [ $bug -ne 0 ]; then
wsrep_log_error "******** FATAL ERROR **********************************************"
wsrep_log_error "* Unable to parse the certificate options: '$CN'"
wsrep_log_error "*******************************************************************"
exit 22
fi
echo ''
}
simple_cleanup()
{
# Since this is invoked just after exit NNN
local estatus=$?
if [ $estatus -ne 0 ]; then
wsrep_log_error "Cleanup after exit with status: $estatus"
fi
if [ -n "$SST_PID" ]; then
[ "$(pwd)" != "$OLD_PWD" ] && cd "$OLD_PWD"
[ -f "$SST_PID" ] && rm -f "$SST_PID" || :
fi
exit $estatus
}
create_data()
{
OLD_PWD="$(pwd)"
DATA_DIR="$OLD_PWD"
if [ -n "$DATA" -a "$DATA" != '.' ]; then
[ ! -d "$DATA" ] && mkdir -p "$DATA"
cd "$DATA"
DATA_DIR="$(pwd)"
cd "$OLD_PWD"
fi
}
create_dirs()
{
local simplify=${1:-0}
# if no command line argument and INNODB_DATA_HOME_DIR environment
# variable is not set, try to get it from the my.cnf:
if [ -z "$INNODB_DATA_HOME_DIR" ]; then
INNODB_DATA_HOME_DIR=$(parse_cnf '--mysqld' 'innodb-data-home-dir')
INNODB_DATA_HOME_DIR=$(trim_dir "$INNODB_DATA_HOME_DIR")
fi
if [ -n "$INNODB_DATA_HOME_DIR" -a "$INNODB_DATA_HOME_DIR" != '.' -a \
"$INNODB_DATA_HOME_DIR" != "$DATA_DIR" ]
then
# handle both relative and absolute paths:
cd "$DATA"
[ ! -d "$INNODB_DATA_HOME_DIR" ] && mkdir -p "$INNODB_DATA_HOME_DIR"
cd "$INNODB_DATA_HOME_DIR"
ib_home_dir="$(pwd)"
cd "$OLD_PWD"
[ $simplify -ne 0 -a "$ib_home_dir" = "$DATA_DIR" ] && ib_home_dir=""
fi
# if no command line argument and INNODB_LOG_GROUP_HOME is not set,
# then try to get it from the my.cnf:
if [ -z "$INNODB_LOG_GROUP_HOME" ]; then
INNODB_LOG_GROUP_HOME=$(parse_cnf '--mysqld' 'innodb-log-group-home-dir')
INNODB_LOG_GROUP_HOME=$(trim_dir "$INNODB_LOG_GROUP_HOME")
fi
if [ -n "$INNODB_LOG_GROUP_HOME" -a "$INNODB_LOG_GROUP_HOME" != '.' -a \
"$INNODB_LOG_GROUP_HOME" != "$DATA_DIR" ]
then
# handle both relative and absolute paths:
cd "$DATA"
[ ! -d "$INNODB_LOG_GROUP_HOME" ] && mkdir -p "$INNODB_LOG_GROUP_HOME"
cd "$INNODB_LOG_GROUP_HOME"
ib_log_dir="$(pwd)"
cd "$OLD_PWD"
[ $simplify -ne 0 -a "$ib_log_dir" = "$DATA_DIR" ] && ib_log_dir=""
fi
# if no command line argument and INNODB_UNDO_DIR is not set,
# then try to get it from the my.cnf:
if [ -z "$INNODB_UNDO_DIR" ]; then
INNODB_UNDO_DIR=$(parse_cnf '--mysqld' 'innodb-undo-directory')
INNODB_UNDO_DIR=$(trim_dir "$INNODB_UNDO_DIR")
fi
if [ -n "$INNODB_UNDO_DIR" -a "$INNODB_UNDO_DIR" != '.' -a \
"$INNODB_UNDO_DIR" != "$DATA_DIR" ]
then
# handle both relative and absolute paths:
cd "$DATA"
[ ! -d "$INNODB_UNDO_DIR" ] && mkdir -p "$INNODB_UNDO_DIR"
cd "$INNODB_UNDO_DIR"
ib_undo_dir="$(pwd)"
cd "$OLD_PWD"
[ $simplify -ne 0 -a "$ib_undo_dir" = "$DATA_DIR" ] && ib_undo_dir=""
fi
# if no command line argument then try to get it from the my.cnf:
if [ -z "$ARIA_LOG_DIR" ]; then
ARIA_LOG_DIR=$(parse_cnf '--mysqld' 'aria-log-dir-path')
ARIA_LOG_DIR=$(trim_dir "$ARIA_LOG_DIR")
fi
if [ -n "$ARIA_LOG_DIR" -a "$ARIA_LOG_DIR" != '.' -a \
"$ARIA_LOG_DIR" != "$DATA_DIR" ]
then
# handle both relative and absolute paths:
cd "$DATA"
[ ! -d "$ARIA_LOG_DIR" ] && mkdir -p "$ARIA_LOG_DIR"
cd "$ARIA_LOG_DIR"
ar_log_dir="$(pwd)"
cd "$OLD_PWD"
[ $simplify -ne 0 -a "$ar_log_dir" = "$DATA_DIR" ] && ar_log_dir=""
fi
return 0
}
wait_previous_sst()
{
# give some time for previous SST to complete:
check_round=0
while check_pid "$SST_PID" 1; do
wsrep_log_info "Previous SST is not completed, waiting for it to exit"
check_round=$(( check_round+1 ))
if [ $check_round -eq 30 ]; then
wsrep_log_error "previous SST script still running..."
exit 114 # EALREADY
fi
sleep 1
done
trap simple_cleanup EXIT
echo $$ > "$SST_PID"
}
DATA="$WSREP_SST_OPT_DATA"
wsrep_check_datadir
create_data
SST_PID="$DATA/wsrep_sst.pid"
if [ -n "${MTR_SST_JOINER_DELAY:-}" ]; then
MTR_SST_JOINER_DELAY=$(trim_string "$MTR_SST_JOINER_DELAY")
fi
simulate_long_sst()
{
# Delay for MTR tests if needed to simulate long SST/IST:
if [ ${MTR_SST_JOINER_DELAY:-0} -gt 0 ]; then
wsrep_log_info "Sleeping $MTR_SST_JOINER_DELAY seconds for MTR test"
sleep $MTR_SST_JOINER_DELAY
fi
}
wsrep_log_info "$WSREP_METHOD $WSREP_TRANSFER_TYPE started on $WSREP_SST_OPT_ROLE"