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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-06-03 13:54:25 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-06-03 13:54:25 +0000 |
commit | 9cb1c4df7b9ce1a9ad1312621b0f2b16a94fba3a (patch) | |
tree | 2efb72864cc69e174c9c5ee33efb88a5f1553b48 /modules.d/95resume/module-setup.sh | |
parent | Initial commit. (diff) | |
download | dracut-9cb1c4df7b9ce1a9ad1312621b0f2b16a94fba3a.tar.xz dracut-9cb1c4df7b9ce1a9ad1312621b0f2b16a94fba3a.zip |
Adding upstream version 060+5.upstream/060+5
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'modules.d/95resume/module-setup.sh')
-rwxr-xr-x | modules.d/95resume/module-setup.sh | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/modules.d/95resume/module-setup.sh b/modules.d/95resume/module-setup.sh new file mode 100755 index 0000000..d255103 --- /dev/null +++ b/modules.d/95resume/module-setup.sh @@ -0,0 +1,68 @@ +#!/bin/bash + +# called by dracut +check() { + swap_on_netdevice() { + local _dev + for _dev in "${swap_devs[@]}"; do + block_is_netdevice "$(get_maj_min "$_dev")" && return 0 + done + return 1 + } + + # Only support resume if hibernation is currently on + # and no swap is mounted on a net device + [[ $hostonly ]] || [[ $mount_needs ]] && { + swap_on_netdevice || [[ -f /sys/power/resume && "$(< /sys/power/resume)" == "0:0" ]] || grep -rq '^\|[[:space:]]resume=' /proc/cmdline /etc/cmdline /etc/cmdline.d /etc/kernel/cmdline /usr/lib/kernel/cmdline 2> /dev/null && return 255 + } + + return 0 +} + +# called by dracut +cmdline() { + local _resume + + for dev in "${!host_fs_types[@]}"; do + [[ ${host_fs_types[$dev]} =~ ^(swap|swsuspend|swsupend)$ ]] || continue + _resume=$(shorten_persistent_dev "$(get_persistent_dev "$dev")") + [[ -n ${_resume} ]] && printf " resume=%s" "${_resume}" + done +} + +# called by dracut +install() { + local _bin + local _resumeconf + + if [[ $hostonly_cmdline == "yes" ]]; then + _resumeconf=$(cmdline) + [[ $_resumeconf ]] && printf "%s\n" "$_resumeconf" >> "${initdir}/etc/cmdline.d/95resume.conf" + fi + + # if systemd is included and has the hibernate-resume tool, use it and nothing else + if dracut_module_included "systemd" && [[ -x $dracutsysrootdir$systemdutildir/systemd-hibernate-resume ]]; then + inst_multiple -o \ + "$systemdutildir"/system-generators/systemd-hibernate-resume-generator \ + "$systemdsystemunitdir"/systemd-hibernate-resume@.service \ + "$systemdutildir"/systemd-hibernate-resume + return 0 + fi + + # Optional uswsusp support + for _bin in /usr/sbin/resume /usr/lib/suspend/resume /usr/lib64/suspend/resume /usr/lib/uswsusp/resume /usr/lib64/uswsusp/resume; do + [[ -x $dracutsysrootdir${_bin} ]] && { + inst "${_bin}" /usr/sbin/resume + [[ $hostonly ]] && [[ -f $dracutsysrootdir/etc/suspend.conf ]] && inst -H /etc/suspend.conf + break + } + done + + if ! dracut_module_included "systemd"; then + inst_hook cmdline 10 "$moddir/parse-resume.sh" + else + inst_script "$moddir/parse-resume.sh" /lib/dracut/parse-resume.sh + fi + + inst_script "$moddir/resume.sh" /lib/dracut/resume.sh +} |