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From db6d12f4b7b10e214526512abe35307270f81c03 Mon Sep 17 00:00:00 2001
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From: Oyvind Albrigtsen <oalbrigt@redhat.com>
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Date: Thu, 8 Aug 2019 14:48:13 +0200
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Subject: [PATCH] mysql/mariadb/galera: use runuser/su to avoid using SELinux
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DAC_OVERRIDE
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---
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heartbeat/galera | 11 ++++++-----
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heartbeat/mysql-common.sh | 16 ++++++++++++----
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2 files changed, 18 insertions(+), 9 deletions(-)
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diff --git a/heartbeat/galera b/heartbeat/galera
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index 9b9fe5569..056281fb8 100755
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--- a/heartbeat/galera
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+++ b/heartbeat/galera
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@@ -624,8 +624,7 @@ detect_last_commit()
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local recover_args="--defaults-file=$OCF_RESKEY_config \
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--pid-file=$OCF_RESKEY_pid \
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--socket=$OCF_RESKEY_socket \
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- --datadir=$OCF_RESKEY_datadir \
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- --user=$OCF_RESKEY_user"
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+ --datadir=$OCF_RESKEY_datadir"
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local recovery_file_regex='s/.*WSREP\:.*position\s*recovery.*--log_error='\''\([^'\'']*\)'\''.*/\1/p'
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local recovered_position_regex='s/.*WSREP\:\s*[R|r]ecovered\s*position.*\:\(.*\)\s*$/\1/p'
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@@ -654,7 +653,8 @@ detect_last_commit()
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ocf_log info "now attempting to detect last commit version using 'mysqld_safe --wsrep-recover'"
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- ${OCF_RESKEY_binary} $recover_args --wsrep-recover --log-error=$tmp 2>/dev/null
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+ $SU - $OCF_RESKEY_user -s /bin/sh -c \
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+ "${OCF_RESKEY_binary} $recover_args --wsrep-recover --log-error=$tmp 2>/dev/null"
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last_commit="$(cat $tmp | sed -n $recovered_position_regex | tail -1)"
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if [ -z "$last_commit" ]; then
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@@ -670,8 +670,9 @@ detect_last_commit()
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# we can only rollback the transaction, but that's OK
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# since the DB will get resynchronized anyway
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ocf_log warn "local node <${NODENAME}> was not shutdown properly. Rollback stuck transaction with --tc-heuristic-recover"
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- ${OCF_RESKEY_binary} $recover_args --wsrep-recover \
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- --tc-heuristic-recover=rollback --log-error=$tmp 2>/dev/null
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+ $SU - $OCF_RESKEY_user -s /bin/sh -c \
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+ "${OCF_RESKEY_binary} $recover_args --wsrep-recover \
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+ --tc-heuristic-recover=rollback --log-error=$tmp 2>/dev/null"
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last_commit="$(cat $tmp | sed -n $recovered_position_regex | tail -1)"
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if [ ! -z "$last_commit" ]; then
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diff --git a/heartbeat/mysql-common.sh b/heartbeat/mysql-common.sh
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index d5ac972cd..65db9bf85 100755
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--- a/heartbeat/mysql-common.sh
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+++ b/heartbeat/mysql-common.sh
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@@ -2,6 +2,13 @@
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#######################################################################
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+# Use runuser if available for SELinux.
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+if [ -x /sbin/runuser ]; then
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+ SU=runuser
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+else
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+ SU=su
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+fi
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+
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# Attempt to detect a default binary
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OCF_RESKEY_binary_default=$(which mysqld_safe 2> /dev/null)
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if [ "$OCF_RESKEY_binary_default" = "" ]; then
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@@ -207,7 +214,7 @@ mysql_common_prepare_dirs()
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# already existed, check whether it is writable by the configured
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# user
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for dir in $pid_dir $socket_dir; do
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- if ! su -s /bin/sh - $OCF_RESKEY_user -c "test -w $dir"; then
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+ if ! $SU -s /bin/sh - $OCF_RESKEY_user -c "test -w $dir"; then
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ocf_exit_reason "Directory $dir is not writable by $OCF_RESKEY_user"
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exit $OCF_ERR_PERM;
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fi
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@@ -219,14 +226,15 @@ mysql_common_start()
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local mysql_extra_params="$1"
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local pid
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- ${OCF_RESKEY_binary} --defaults-file=$OCF_RESKEY_config \
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+ $SU - $OCF_RESKEY_user -s /bin/sh -c \
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+ "${OCF_RESKEY_binary} --defaults-file=$OCF_RESKEY_config \
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--pid-file=$OCF_RESKEY_pid \
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--socket=$OCF_RESKEY_socket \
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--datadir=$OCF_RESKEY_datadir \
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--log-error=$OCF_RESKEY_log \
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- --user=$OCF_RESKEY_user $OCF_RESKEY_additional_parameters \
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+ $OCF_RESKEY_additional_parameters \
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$mysql_extra_params >/dev/null 2>&1 &
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- pid=$!
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+ pid=$!"
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# Spin waiting for the server to come up.
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# Let the CRM/LRM time us out if required.
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