blob: e86db80b01781a9d9201b3af5220ce0da748510d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
|
#!/bin/sh /etc/rc.common
# Init script for ptp4l daemon, from linuxptp package
START=45
USE_PROCD=1
PROG=/usr/sbin/ptp4l
HELPER=/usr/sbin/sysclock-discipline-check
CONFIGFILE=/var/etc/ptp4l.conf
ID=ptp4l
log() {
local loglevel=$1; shift; local msg="$*"
logger -t ptp4l-init -p daemon.$loglevel "$msg"
}
is_clock_disciplined() {
local output rc
if ! [ -x "$HELPER" ]; then
echo "Helper $HELPER not found or not executable." >&2
echo "Error: Clock sync helper tool missing."
return 2
fi
output=$($HELPER)
rc=$?
echo $output
[ $rc -eq 2 ] && log err "ERROR: $HELPER call unsuccessful (rc=$rc): $output"
return $rc
}
wait_disciplined() {
local check_msg interval is_synced=0 max_tries rc role tries=0
config_get role $ID "role" ""
config_get interval $ID "clock_sync_check_interval" "15"
config_get max_tries $ID "clock_sync_max_tries" "8"
log info "Preparing to start with role:$role -> checking if system clock is disciplined..."
while [ $is_synced -eq 0 ]; do
tries=$((tries + 1))
check_msg=$(is_clock_disciplined); rc=$?
if [ $rc -eq 0 ]; then
is_synced=1
log info "sysclock-discipline-check: $check_msg. Continuing."
return 0
elif [ $rc -eq 1 ]; then
if [ "$max_tries" -gt 0 ] && [ "$tries" -ge "$max_tries" ]; then
log err "Clock sync wait timed out after $tries attempts. ptp4l will NOT start."
log err "Increase 'clock_sync_max_tries' or set 'require_clock_sync 0' to skip."
return 1
fi
if [ "$max_tries" -gt 0 ]; then
log info "sysclock-discipline-check: $check_msg. Waiting... ($tries/$max_tries)"
else
log info "sysclock-discipline-check: $check_msg. Waiting... (attempt $tries, unlimited)"
fi
else
log crit "Clock sync check FAILED: $check_msg."
log err "ptp4l will NOT start. Resolve issue, or set 'require_clock_sync' to 0"
return 1
fi
sleep $interval
done
}
handle_interface() {
local cfg=$1 delay_mechanism interface ifname transport
config_get interface $cfg "interface" ""
[ -z "$interface" ] && { log err "Required 'interface' option missing in 'ptp_interface' section"; exit 1; }
network_get_device ifname "$interface"
[ -z "$ifname" ] && { log err "Cannot resolve UCI interface '$interface' to kernel-compatible ifname."; exit 1; }
config_get transport $cfg "transport" "UDPv4"
config_get delay_mechanism $cfg "delay_mechanism" "E2E"
echo ""
echo "[$ifname]"
[ "$transport" != "UDPv4" ] && echo "network_transport $transport"
[ "$delay_mechanism" != "E2E" ] && echo "delay_mechanism $delay_mechanism"
config_list_foreach $cfg "interface_opts" echo
}
handle_global() {
local cfg=$1 role
config_get role $cfg "role" "auto"
echo "[global]"
case "$role" in
server) printf "serverOnly 1\n";;
client) printf "clientOnly 1\n";;
auto) printf "";;
*) log err "Invalid role: $role! valid values: 'auto', 'client', 'server'"; return 1;;
esac
config_list_foreach $cfg "global_opts" echo
}
make_configfile() {
local cfg=$1 iface_count rc
. /lib/functions/network.sh
mkdir -p "${CONFIGFILE%/*}"
(
handle_global $cfg || exit 1
config_foreach handle_interface ptp_interface
) > "$CONFIGFILE"
rc=$?
[ $rc -ne 0 ] && return 1
# Require at least one [interface] section beyond [global]
iface_count=$(grep -c '^\[' "$CONFIGFILE" 2>/dev/null)
if [ "${iface_count:-0}" -lt 2 ]; then
log notice "No PTP interfaces configured. Add a 'config ptp_interface' section to /etc/config/linuxptp."
return 1
fi
}
make_cmdline() {
local cfg=$1 loglevel
config_get loglevel $cfg "loglevel" "6"
echo $PROG
echo "-l $loglevel"
echo "-f $CONFIGFILE"
echo "-m"
echo "-q"
config_list_foreach $cfg "extra_args" echo
}
service_triggers() {
procd_add_reload_trigger "linuxptp"
}
start_service() {
local clocksync_wanted cmdline rc role should_have_disciplined_clock=0
config_load linuxptp
# Fast pre-check: fail immediately if no ptp_interface section carries a
# non-empty 'interface' option, before spending minutes in the clock-sync wait below.
if [ -z "$(uci -q get linuxptp.@ptp_interface[0].interface)" ]; then
log notice "No ptp_interface section with an 'interface' option configured in /etc/config/linuxptp. ptp4l will not start."
return 1
fi
config_get role $ID "role" "auto"
[ "$role" = "server" ] && should_have_disciplined_clock=1
config_get_bool clocksync_wanted $ID "require_clock_sync" "$should_have_disciplined_clock"
if [ "$clocksync_wanted" = 1 ]; then
wait_disciplined || return 1
fi
make_configfile $ID; rc=$?
if [ $rc -ne 0 ]; then
log err "Failed to generate $CONFIGFILE. Aborting."
rm -f "$CONFIGFILE"
return 1
fi
cmdline=$(make_cmdline $ID)
log info "Starting ptp4l: $cmdline"
procd_open_instance "ptp4l"
procd_set_param command $cmdline
procd_set_param file $CONFIGFILE
procd_set_param stdout 1
procd_set_param stderr 1
procd_close_instance
}
stop_service() {
rm -f "$CONFIGFILE"
log info "ptp4l exiting (if running)"
}
|
