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277f05872f
After various long discussions (https://lists.freedesktop.org/archives/systemd-devel/2022-March/047587.html, https://lwn.net/Articles/889610/), there is no clear answer what the minimum version should be. Bumping the version above 3.15 doesn't allow us to make any significant simplifications (unless we went *much* higher). In particular, even renameat2() is not fully supported with latest kernel versions, e.g. nfs still doesn't have it. And the bpf stuff is optional anyway. So let's just say that 4.15 is what we recommend, because it provides fairly complete cgroups-v2, but without any removals of compat in the code.
78 lines
3.0 KiB
C
78 lines
3.0 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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/* The limit for PID 1 itself (which is not inherited to children) */
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#define HIGH_RLIMIT_MEMLOCK (1024ULL*1024ULL*64ULL)
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/* Since kernel 5.16 the kernel default limit was raised to 8M. Let's adjust things on old kernels too, and
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* in containers so that our children inherit that. */
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#define DEFAULT_RLIMIT_MEMLOCK (1024ULL*1024ULL*8ULL)
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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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#define KERNEL_BASELINE_VERSION "4.15"
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