Lennart Poettering
d36bdc9467
Define a new io.systemd.SysUpdate.Notify Varlink interface with a single OnCompletedUpdate() method, and after sysupdate successfully installs an update, invoke that method on every socket linked into /run/systemd/sysupdate/notify/ via varlink_execute_directory(). This gives other components a hook to react to applied updates (e.g. recompute a TPM policy, link a freshly downloaded kernel, refresh extensions). The notification carries the component name, the installed version and the list of updated resources (transfer id + on-disk path). Subscribers are free to ignore the parameters and just treat the call as a trigger. Setting SYSTEMD_SYSUPDATE_FORCE_NOTIFY=1 forces the notification to be sent even when no update was applied (in which case no resource list is included), so follow-up work can be triggered unconditionally. Fixes: #35988
21 lines
889 B
C
21 lines
889 B
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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#include "varlink-io.systemd.SysUpdate.Notify.h"
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static SD_VARLINK_DEFINE_STRUCT_TYPE(
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Resource,
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SD_VARLINK_DEFINE_FIELD(transfer, SD_VARLINK_STRING, 0),
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SD_VARLINK_DEFINE_FIELD(path, SD_VARLINK_STRING, SD_VARLINK_NULLABLE));
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static SD_VARLINK_DEFINE_METHOD(
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OnCompletedUpdate,
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SD_VARLINK_DEFINE_INPUT(component, SD_VARLINK_STRING, SD_VARLINK_NULLABLE),
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SD_VARLINK_DEFINE_INPUT(version, SD_VARLINK_STRING, SD_VARLINK_NULLABLE),
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SD_VARLINK_DEFINE_INPUT_BY_TYPE(resources, Resource, SD_VARLINK_ARRAY|SD_VARLINK_NULLABLE));
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SD_VARLINK_DEFINE_INTERFACE(
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io_systemd_SysUpdate_Notify,
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"io.systemd.SysUpdate.Notify",
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&vl_type_Resource,
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&vl_method_OnCompletedUpdate);
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