ubox: only start log to file when filesystem has been mounted

If log_file is on an filesystem mounted using /etc/config/fstab we have
to wait for that to happen before starting the logread process.
Inhibit the start of the file-writer process and use a mount trigger to
fire it up once the filesystem actually becomes available.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
This commit is contained in:
Daniel Golle 2022-01-30 19:39:21 +00:00
parent 6d76ec3872
commit 88baf6ce2c
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GPG Key ID: 5A8F39C31C3217CA

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@ -9,6 +9,8 @@ PIDCOUNT=0
USE_PROCD=1
PROG=/sbin/logread
extra_command "start_file" "Start writing to log file"
validate_log_section()
{
uci_load_validate system system "$1" "$2" \
@ -34,7 +36,7 @@ start_service_daemon()
{
[ $log_buffer_size -eq 0 -a $log_size -gt 0 ] && log_buffer_size=$log_size
[ $log_buffer_size -eq 0 ] && log_buffer_size=64
procd_open_instance
procd_open_instance logd
procd_set_param command "/sbin/logd"
procd_append_param command -S "${log_buffer_size}"
procd_set_param respawn 5 1 -1
@ -52,9 +54,12 @@ start_service_file()
}
[ -z "${log_file}" ] && return
[ "$_BOOT" = "1" ] &&
[ "$(procd_get_mountpoints "${log_file}")" ] && return 0
mkdir -p "$(dirname "${log_file}")"
procd_open_instance
procd_open_instance logfile
procd_set_param command "$PROG" -f -F "$log_file" -p "$pid_file"
[ -n "${log_size}" ] && procd_append_param command -S "$log_size"
procd_close_instance
@ -73,7 +78,7 @@ start_service_remote()
[ -z "${log_ip}" ] && return
[ -z "${log_hostname}" ] && log_hostname=$(cat /proc/sys/kernel/hostname)
procd_open_instance
procd_open_instance logremote
procd_set_param command "$PROG" -f -h "$log_hostname" -r "$log_ip" "${log_port}" -p "$pid_file"
case "${log_proto}" in
"udp") procd_append_param command -u;;
@ -83,10 +88,17 @@ start_service_remote()
procd_close_instance
}
register_mount_trigger()
{
[ -n "${log_file}" ] && procd_add_action_mount_trigger start_file "${log_file}"
}
service_triggers()
{
config_load system
procd_add_reload_trigger "system"
procd_add_validation validate_log_section
config_foreach validate_log_section system register_mount_trigger
}
start_service()
@ -96,3 +108,13 @@ start_service()
config_foreach validate_log_section system start_service_file
config_foreach validate_log_section system start_service_remote
}
start_file()
{
config_load system
config_foreach validate_log_section system start_service_file
}
boot() {
_BOOT=1 start
}