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https://github.com/morgan9e/systemd
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064a5c1438
Compared to PID1 where systemd-oomd has to be the client to PID1 because PID1 is a more privileged process than systemd-oomd, systemd-oomd is the more privileged process compared to a user manager so we have user managers be the client whereas systemd-oomd is now the server. The same varlink protocol is used between user managers and systemd-oomd to deliver ManagedOOM property updates. systemd-oomd now sets up a varlink server that user managers connect to to send ManagedOOM property updates. We also add extra validation to make sure that non-root senders don't send updates for cgroups they don't own. The integration test was extended to repeat the chill/bloat test using a user manager instead of PID1.
71 lines
2.7 KiB
C
71 lines
2.7 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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#pragma once
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#define DEFAULT_TIMEOUT_USEC (90*USEC_PER_SEC)
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#define DEFAULT_RESTART_USEC (100*USEC_PER_MSEC)
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#define DEFAULT_CONFIRM_USEC (30*USEC_PER_SEC)
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#define DEFAULT_START_LIMIT_INTERVAL (10*USEC_PER_SEC)
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#define DEFAULT_START_LIMIT_BURST 5
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/* The default time after which exit-on-idle services exit. This
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* should be kept lower than the watchdog timeout, because otherwise
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* the watchdog pings will keep the loop busy. */
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#define DEFAULT_EXIT_USEC (30*USEC_PER_SEC)
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/* The default value for the net.unix.max_dgram_qlen sysctl */
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#define DEFAULT_UNIX_MAX_DGRAM_QLEN 512UL
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#define SIGNALS_CRASH_HANDLER SIGSEGV,SIGILL,SIGFPE,SIGBUS,SIGQUIT,SIGABRT
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#define SIGNALS_IGNORE SIGPIPE
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#define NOTIFY_FD_MAX 768
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#define NOTIFY_BUFFER_MAX PIPE_BUF
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#if HAVE_SPLIT_USR
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# define _CONF_PATHS_SPLIT_USR_NULSTR(n) "/lib/" n "\0"
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# define _CONF_PATHS_SPLIT_USR(n) , "/lib/" n
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#else
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# define _CONF_PATHS_SPLIT_USR_NULSTR(n)
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# define _CONF_PATHS_SPLIT_USR(n)
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#endif
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/* Return a nulstr for a standard cascade of configuration paths,
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* suitable to pass to conf_files_list_nulstr() or config_parse_many_nulstr()
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* to implement drop-in directories for extending configuration
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* files. */
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#define CONF_PATHS_NULSTR(n) \
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"/etc/" n "\0" \
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"/run/" n "\0" \
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"/usr/local/lib/" n "\0" \
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"/usr/lib/" n "\0" \
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_CONF_PATHS_SPLIT_USR_NULSTR(n)
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#define CONF_PATHS_USR(n) \
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"/etc/" n, \
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"/run/" n, \
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"/usr/local/lib/" n, \
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"/usr/lib/" n
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#define CONF_PATHS(n) \
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CONF_PATHS_USR(n) \
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_CONF_PATHS_SPLIT_USR(n)
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#define CONF_PATHS_USR_STRV(n) \
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STRV_MAKE(CONF_PATHS_USR(n))
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#define CONF_PATHS_STRV(n) \
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STRV_MAKE(CONF_PATHS(n))
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#define HIGH_RLIMIT_MEMLOCK (1024ULL*1024ULL*64ULL)
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#define PLYMOUTH_SOCKET { \
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.un.sun_family = AF_UNIX, \
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.un.sun_path = "\0/org/freedesktop/plymouthd", \
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}
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/* Path where PID1 listens for varlink subscriptions from systemd-oomd to notify of changes in ManagedOOM settings. */
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#define VARLINK_ADDR_PATH_MANAGED_OOM_SYSTEM "/run/systemd/io.system.ManagedOOM"
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/* Path where systemd-oomd listens for varlink connections from user managers to report changes in ManagedOOM settings. */
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#define VARLINK_ADDR_PATH_MANAGED_OOM_USER "/run/systemd/oom/io.system.ManagedOOM"
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