blob: a3050daaf00d45c65626e36601840cf1205b1bdb (
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
190
191
192
193
194
195
196
197
198
199
200
201
202
203
|
#!/bin/sh
# vim:noexpandtab
# Default values go here. It is important to _not_ initialize some
# variables here. They are:
#
# PM_CMDLINE
# RESUME_MODULES
#
# for great debugging!
[ "${PM_DEBUG}" = "true" ] && {
export PM_DEBUG
set -x
}
set -a
PM_UTILS_LIBDIR="@PM-UTILS-LIBDIR@"
PM_UTILS_ETCDIR="@PM-UTILS-SYSCONFDIR@"
PM_UTILS_RUNDIR="/var/run/pm-utils"
PM_CMDLINE="$*"
PATH=/sbin:/usr/sbin:/bin:/usr/bin:"${PM_UTILS_LIBDIR}"/bin
INHIBIT="${PM_UTILS_RUNDIR}/inhibit"
PM_LOGFILE="${PM_LOGFILE:=/var/log/pm-suspend.log}"
TEMPORARY_CPUFREQ_GOVERNOR="performance"
LOCKDIR="${PM_UTILS_RUNDIR}/locks"
STORAGEDIR="${PM_UTILS_RUNDIR}/storage"
NA=254
NX=253
DX=252
PM_FUNCTIONS="$PM_UTILS_LIBDIR/functions"
# Use c sort order
LC_COLLATE=C
# These should be overridden by defaults and/or config.d settings.
# Specifically, distros should override these by modifying defaults,
# and end users should modify these using files in /etc/pm/config.
HIBERNATE_MODE=""
HIBERNATE_RESUME_POST_VIDEO="no"
SLEEP_MODULE="kernel"
# These variables will be handled specially when we load the config file.
SUSPEND_MODULES=""
HOOK_BLACKLIST=""
ADD_PARAMETERS=""
DROP_PARAMETERS=""
[ -f "${PM_UTILS_LIBDIR}"/defaults ] && . "${PM_UTILS_LIBDIR}"/defaults
set +a
for cfg in "${PM_UTILS_ETCDIR}"/config.d/*[!~] ; do
[ -f "$cfg" ] || continue
# Ugly, I know. The goal here is to allow multiple files in
# /etc/pm/config.d declare these variables and have those
# declarations add together instead of the last one overwriting
# all the others.
[ "$SUSPEND_MODULES" ] && REAL_SUSPEND_MODULES="$SUSPEND_MODULES"
[ "$HOOK_BLACKLIST" ] && REAL_HOOK_BLACKLIST="$HOOK_BLACKLIST"
[ "$ADD_PARAMETERS" ] && REAL_ADD_PARAMETERS="$ADD_PARAMETERS"
[ "$DROP_PARAMETERS" ] && REAL_DROP_PARAMETERS="$DROP_PARAMETERS"
set -a
. "${cfg}"
SUSPEND_MODULES="$REAL_SUSPEND_MODULES $SUSPEND_MODULES"
HOOK_BLACKLIST="$REAL_HOOK_BLACKLIST $HOOK_BLACKLIST"
ADD_PARAMETERS="$REAL_ADD_PARAMETERS $ADD_PARAMETERS"
DROP_PARAMETERS="$REAL_DROP_PARAMETERS $DROP_PARAMETERS"
set +a
done
. "${PM_FUNCTIONS}"
log() { [ $LOGGING ] && echo $*; }
load_hook_blacklist()
{
[ "$HOOK_BLACKLIST" ] || return
local hook
for hook in $HOOK_BLACKLIST; do
disablehook "${hook}" "blacklisted by user"
log "Blacklisting ${hook}."
done
}
remove_parameters() {
local x y
for p in "$@"; do
y=""
for x in $PM_CMDLINE; do
[ "$x" = "$p" ] && {
log "Removing parameter $x."
continue
}
y="$y $x"
done
PM_CMDLINE="$y"
done
}
add_parameters() {
log "Adding parameters $@"
PM_CMDLINE="$PM_CMDLINE $@"
}
load_hook_parameters()
{
[ "$DROP_PARAMETERS" ] && remove_parameters $DROP_PARAMETERS
[ "$ADD_PARAMETERS" ] && add_parameters $ADD_PARAMETERS
}
take_suspend_lock()
{
try_lock "pm-utils.lock" || return 1
mkdir -p "${STORAGEDIR}"
return 0
}
remove_suspend_lock()
{
rm -rf "${STORAGEDIR}"
release_lock "pm-utils.lock"
}
hook_exit_status(){
case $1 in
0) log "success." ;;
$NA) log "not applicable." ;;
$NX) log "not executable." ;;
$DX) log "disabled." ;;
*) log "Returned exit code $1." ;;
esac
}
hook_ok()
{
local hook="${1##*/}"
## the actual name as passed to us.
[ -f "$STORAGEDIR/disable_hook:$hook" ] && return $DX
## name with zeros chopped off the filename
[ -f "$STORAGEDIR/disable_hook:${hook#[0-9][0-9]}" ] && return $DX
[ -x "$1" ] || return $NX
return 0
}
run_hooks() {
# $1 = type of hook to find.
# $2 = paramaters to pass to hooks.
# $3 = if present and equal to "reverse", run hooks backwards.
# Currently only power and sleep are meaningful.
local syshooks="${PM_UTILS_ETCDIR}/$1.d"
local phooks="${PM_UTILS_LIBDIR}/$1.d"
command_exists before_hooks && before_hooks
local sort="sort"
local base
local hook
local oifs="${IFS}"
# the next two lines are not a typo or a formatting error!
local nifs="
"
IFS="${nifs}" # tolerate spaces in filenames.
[ "$3" = "reverse" ] && sort="sort -r"
for base in $(IFS="${oifs}"; for f in "$syshooks/"*[!~] "$phooks/"*[!~];
do [ -O "$f" ] && echo ${f##*/} ; done | $sort | uniq) ;
do
if [ -f "$syshooks/$base" ]; then
hook="$syshooks/$base"
elif [ -f "$phooks/$base" ]; then
hook="$phooks/$base"
fi
log $(date): running ${hook} $2
hook_ok "$hook" && (
IFS="${oifs}"
"${hook}" $2
)
hook_exit_status $?
done
IFS="${oifs}"
}
init_logfile()
{
if [ -h "$1" ]; then
echo "$1 is a symbolic link, refusing to overwrite."
return 1
elif [ ! -O "$1" ]; then
echo "We do not own $1, refusing to overwrite."
return 1
elif [ -z "$1" ]; then
echo "Please pass a filename to init_logfile."
return 1
fi
export LOGGING=true
exec > "$1" 2>&1
}
SLEEP_FUNCTIONS="${PM_UTILS_LIBDIR}/module.d/${SLEEP_MODULE}"
[ -f "${SLEEP_FUNCTIONS}" ] || {
echo "Requested sleep module $SLEEP_MODULE not available."
exit 1
}
. "${SLEEP_FUNCTIONS}"
|
