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2016-05-02core: fix detection whether per-unit drop-ins changedLennart Poettering
This fixes fall-out from 6d10d308c6cd16528ef58fa4f5822aef936862d3. Until that commit, do determine whether a daemon reload was required we compare the mtime of the main unit file we loaded with the mtime of it on disk for equality, but for drop-ins we only stored the newest mtime of all of them and then did a "newer-than" comparison. This was brokeni with the above commit, when all checks where changed to be for equality. With this change all checks are now done as "newer-than", fixing the drop-in mtime case. Strictly speaking this will not detect a number of changes that the code before above commit detected, but given that the mtime is unlikely to go backwards, and this is just intended to be a helpful hint anyway, this looks OK in order to keep things simple. Fixes: #3123
2016-05-02core: move enforcement of the start limit into per-unit-type code againLennart Poettering
Let's move the enforcement of the per-unit start limit from unit.c into the type-specific files again. For unit types that know a concept of "result" codes this allows us to hook up the start limit condition to it with an explicit result code. Also, this makes sure that the state checks in clal like service_start() may be done before the start limit is checked, as the start limit really should be checked last, right before everything has been verified to be in order. The generic start limit logic is left in unit.c, but the invocation of it is moved into the per-type files, in the various xyz_start() functions, so that they may place the check at the right location. Note that this change drops the enforcement entirely from device, slice, target and scope units, since these unit types generally may not fail activation, or may only be activated a single time. This is also documented now. Note that restores the "start-limit-hit" result code that existed before 6bf0f408e4833152197fb38fb10a9989c89f3a59 already in the service code. However, it's not introduced for all units that have a result code concept. Fixes #3166.
2016-05-02util: don't dump /proc/cpuinfo contents in debug infoLennart Poettering
This is hardly useful, it's trivial for developers to get that info by running cat /proc/cpuinfo. Fixes #3155
2016-04-30Merge pull request #3152 from poettering/aliasfixZbigniew Jędrzejewski-Szmek
Refuse aliases to non-aliasable units in more places Fixes #2730.
2016-04-30architecture: Add nios2 (#3159)Zbigniew Jędrzejewski-Szmek
Add nios2 architecture support. The nios2 is a softcore by Altera.
2016-04-29Merge pull request #3151 from keszybz/pr3149-2Zbigniew Jędrzejewski-Szmek
Assorted fixes #3149 + one commit tacked on top
2016-04-29core: when encountering a symlink alias for non-aliasable units warn nicelyLennart Poettering
If the user defines a symlink alias for a unit whose type does not support aliasing, detect this early and print a nice warning. Fixe: #2730
2016-04-29hashmap: optimize set_put_strdup() a bitLennart Poettering
Hashing should be quicker than allocating, hence let's first check if the string already exists and only then allocate a new copy for it.
2016-04-29core: refuse merging on units when the unit type does not support aliasLennart Poettering
The concept of merging units exists so that we can create Unit objects for a number of names early, and then load them only later, possibly merging units which then turn out to be symlinked to other names. This of course only makes sense for unit types where multiple names per unit are supported. For all others, let's refuse the merge operation early.
2016-04-29core: merge service_connection_unref() into service_close_socket_fd()Lennart Poettering
We always call one after the other anyway, and this way service_set_socket_fd() and service_close_socket_fd() nicely match each other as one undoes the effect of the other.
2016-04-29core: rerun GC logic for a unit that loses a referenceLennart Poettering
Let's make sure when we drop a reference to a unit, that we run the GC queue on it again. This (together with the previous commit) should deal with the GC issues pointed out in: https://github.com/systemd/systemd/pull/2993#issuecomment-215331189
2016-04-29core: rework socket/service GC logicLennart Poettering
There's no need to set the no_gc bit for service units that socket units prepare, as we always keep a proper reference (as maintained by unit_ref_set()) on them, and such references are honoured by the GC logic anyway. Moreover, explicitly setting the no_gc bit is problematic if the socket gets GC'ed for a reason, as the service might then leak with the bit set.
2016-04-29socket: really always close auxiliary fds when closing socket fdsLennart Poettering
2016-04-29core: make parsing of RLIMIT_NICE aware of actual nice levelsLennart Poettering
2016-04-29core: make sure to close connection fd when we fail to activate a ↵Lennart Poettering
per-connection service Fixes: #2993 #2691
2016-04-29core: minor error path fixLennart Poettering
In service_set_socket_fd(), let's make sure that if we can't add the requested dependencies we take no possession of the passed connection fd. This way, we follow the strict rule: we take possession of the passed fd on success, but on failure we don't, and the fd remains in possession of the caller.
2016-04-29core: rename StartLimitInterval= to StartLimitIntervalSec=Lennart Poettering
We generally follow the rule that for time settings we suffix the setting name with "Sec" to indicate the default unit if none is specified. The only exception was the rate limiting interval settings. Fix this, and keep the old names for compatibility. Do the same for journald's RateLimitInterval= setting
2016-04-29core: move start ratelimiting check after condition checksLennart Poettering
With #2564 unit start rate limiting was moved from after the condition checks are to before they are made, in an attempt to fix #2467. This however resulted in #2684. However, with a previous commit a concept of per socket unit trigger rate limiting has been added, to fix #2467 more comprehensively, hence the start limit can be moved after the condition checks again, thus fixing #2684. Fixes: #2684
2016-04-29core: introduce activation rate limiting for socket unitsLennart Poettering
This adds two new settings TriggerLimitIntervalSec= and TriggerLimitBurst= that define a rate limit for activation of socket units. When the limit is hit, the socket is is put into a failure mode. This is an alternative fix for #2467, since the original fix resulted in issue #2684. In a later commit the StartLimitInterval=/StartLimitBurst= rate limiter will be changed to be applied after any start conditions checks are made. This way, there are two separate rate limiters enforced: one at triggering time, before any jobs are queued with this patch, as well as the start limit that is moved again to be run immediately before the unit is activated. Condition checks are done in between the two, and thus no longer affect the start limit.
2016-04-29build-sys: improve compat with older kernel headersLennart Poettering
In 4.2 kernel headers, some netlink defines are missing that we need. missing.h already can add them in, but currently makes this dependent on a definition that these kernels already have. Change the check hence to check for the newest definition in the table, so that the whole bunch of definitions as added in on all kernels lacking this.
2016-04-29path-util: also support ".old" and ".new" suffixes and recommend themZbigniew Jędrzejewski-Szmek
~ suffix works fine, but looks to much like it the file is supposed to be automatically cleaned up. For new versions of configuration files installers might want to using something that looks more permanent like foobar.new. So let's add treat ".old" and ".new" as special. Update test to match.
2016-04-29core: Filter by unit name behind the D-Bus, instead on the client side (#3142)kayrus
This commit improves systemd performance on the systems which have thousands of units.
2016-04-29Merge pull request #3126 from poettering/small-fixesZbigniew Jędrzejewski-Szmek
fsync directory when creating or rotating journal files and other small fixes, most importantly for the DHCP DUID code.
2016-04-29test-copy: never call alloca() in a loopLennart Poettering
That's a total no-no, hence rework this to use malloc()-based memory instead of alloca()-based memory. Also see CODING_STYLE about this.
2016-04-29copy: also copy AF_UNIX socketsLennart Poettering
We previously would fail with EOPNOTSUPP when encountering an AF_UNIX socket in the directory tree to copy. Fix that, and copy them too (even if they are dead in the result). Fixes: #2914
2016-04-29path-util: document that we shouldn't add further entries to ↵Lennart Poettering
hidden_or_backup_file() And let's add ".bak" as a generic suffix for backups, that people can use without having to register their stuff in our list.
2016-04-29Merge pull request #3069 from Werkov/fix-dependencies-for-bind-mountsLennart Poettering
Always create dependencies for bind mounts
2016-04-29journal-file: when rotating a journal file, fsync directory tooLennart Poettering
As suggested by: https://github.com/systemd/systemd/pull/3126#discussion_r61125474
2016-04-29networkd: clean up DUID code a bitLennart Poettering
Let's move DUID configuration into the [DHCP] section, since it only makes sense in a DHCP context, and should be close to the configuration of ClientIdentifier= and suchlike. This really shouldn't be a section of its own, we don't have any for any of our other per-protocol specific identifiers... Follow-up for #2890 #2943
2016-04-29journal: when creating a new journal file, fsync() the directory it is ↵Lennart Poettering
created in too Fixes: #2831
2016-04-29parse-util: fix conversion from size_t on s390 (#3147)Lubomir Rintel
On s390 size_t is an unsigned long, nor an unsigned int. They both are of the same size and can be cast to each other safely, but the compiler still seems unhappy about incompatible pointers. Fixes: 7c2da2ca8
2016-04-29Merge pull request #3137 from keszybz/dirent-simplificationLennart Poettering
Various small cleanups in shared code
2016-04-29nspawn: convert uuid to string (#3146)Evgeny Vereshchagin
Fixes: cp /etc/machine-id /var/tmp/systemd-test.HccKPa/nspawn-root/etc systemd-nspawn -D /var/tmp/systemd-test.HccKPa/nspawn-root --link-journal host -b ... Host and machine ids are equal (P�S!V): refusing to link journals
2016-04-28networkd: reconfigure IPv6 and static address after link up event (#3105)Susant Sahani
Now we are not setting static address, start dhcp6 client and discovering IPv6 routers after link gained carrier. This fixes #2912.
2016-04-28basic/mount-util: recognize pvfs2 as network fs (#3140)Zbigniew Jędrzejewski-Szmek
Added to kernel 4.6.
2016-04-28nspawn: initialize the veth_name (#3141)Evgeny Vereshchagin
Fixes: $ systemd-nspawn -h ... Failed to remove veth interface ����: Operation not permitted This is a follow-up for d2773e59de3dd970d861
2016-04-28cgtop: initialize `ours' to NULL properly (#3139)Naohiro Aota
Running cgtop on a system, which lacks expecting stat file, results in a segfault. For example, a system with blkio tree but without cfq io scheduler, lacks "blkio.io_service_bytes". When the targeting cgroup's file does not exist, process() returns 0 and also does not modify `*ret' value (which is `*ours'). As a result, callers of refresh_one() can have bogus pointer, which result in SEGV. This patch just properly initialize the variable to NULL.
2016-04-28test-path-util: add a trivial test for hidden_or_backup_fileZbigniew Jędrzejewski-Szmek
2016-04-28tree-wide: rename hidden_file to hidden_or_backup_file and optimizeZbigniew Jędrzejewski-Szmek
In standard linux parlance, "hidden" usually means that the file name starts with ".", and nothing else. Rename the function to convey what the function does better to casual readers. Stop exposing hidden_file_allow_backup which is rather ugly and rewrite hidden_file to extract the suffix first. Note that hidden_file_allow_backup excluded files with "~" at the end, which is quite confusing. Let's get rid of it before it gets used in the wrong place.
2016-04-27basic/dirent-util: do not call hidden_file_allow_backup from ↵Zbigniew Jędrzejewski-Szmek
dirent_is_file_with_suffix If the file name is supposed to end in a suffix, there's not need to check the name against a list of "special" file names, which is slow. Instead, just check that the name doens't start with a period.
2016-04-27networkd: drop unnecessary stmtZbigniew Jędrzejewski-Szmek
2016-04-27machinectl: simplify option string assignmentZbigniew Jędrzejewski-Szmek
It's better to avoid having the option string duplicated, lest we forget to modify them in sync in the future.
2016-04-27Correctly parse OBJECT_PID in journald messages (#3129)Nalin Dahyabhai
The parse_pid() function doesn't succeed if we don't zero-terminate after the last digit in the buffer.
2016-04-27path-util: Add hidden suffixes for ucf (#3131)Martin Pitt
ucf is a standard Debian helper for managing configuration file upgrades which need more interaction or elaborate merging than conffiles managed by dpkg. Ignore its temporary and backup files similarly to the *.dpkg-* ones to avoid creating units for them in generators. https://bugs.debian.org/775903
2016-04-27journal: set STATE_ARCHIVED as part of offlining (#2740)Vito Caputo
The only code path which makes a journal durable is via journal_file_set_offline(). When we perform a rotate the journal's header->state is being set to STATE_ARCHIVED prior to journal_file_set_offline() being called. In journal_file_set_offline(), we short-circuit the entire offline when f->header->state != STATE_ONLINE. This all results in none of the journal_file_set_offline() fsync() calls being reached when rotate archives a journal, so archived journals are never explicitly made durable. What we do now is instead of setting the f->header->state to STATE_ARCHIVED directly in journal_file_rotate() prior to journal_file_close(), we set an archive flag in f->archive for the journal_file_set_offline() machinery to honor by committing STATE_ARCHIVED instead of STATE_OFFLINE when set. Prior to this, rotated journals were never getting fsync() explicitly performed on them, since journal_file_set_offline() short-circuited. Obviously this is undesirable, and depends entirely on the underlying filesystem as to how much durability was achieved when simply closing the file. Note that this problem existed prior to the recent asynchronous fsync changes, but those changes do facilitate our performing this durable offline on rotate without blocking, regardless of the underlying filesystem sync-on-close semantics.
2016-04-26core: set start job timeout from the kernel commandline (#3112)tblume
Add the boot parameter: systemd.default_timeout_start_sec to allow modification of the default start job timeout at boot time.
2016-04-26Merge pull request #3124 from poettering/small-journal-fixesZbigniew Jędrzejewski-Szmek
2016-04-26Revert "smaller journal fixes (#3124)"Zbigniew Jędrzejewski-Szmek
This reverts commit 6e3930c40f3379b7123e505a71ba4cd6db6c372f. Merge got squashed by mistake.
2016-04-26Merge pull request #3093 from poettering/nspawn-userns-magicLennart Poettering
nspawn automatic user namespaces
2016-04-26smaller journal fixes (#3124)Lennart Poettering
* sd-journal: detect earlier if we try to read an object from an invalid offset Specifically, detect early if we try to read from offset 0, i.e. are using uninitialized offset data. * journal: when dumping journal contents, react nicer to lines we can't read If journal files are not cleanly closed it might happen that intermediaery journal entries cannot be read. Handle this nicely, skip over the unreadable entries, and log a debug message about it; after all we generally follow the logic that we try to make the best of corrupted files. * journal-file: always generate the same error when encountering corrupted files Let's make sure EBADMSG is the one error we throw when we encounter corrupted data, so that we can neatly test for it. * journal-file: when iterating through a partly corruped journal file, treat error like EOF When we linearly iterate through a corrupted journal file, and we encounter a read error, don't consider this fatal, but merely as EOF condition (and log about it). * journal-file: make seeking in corrupted files work Previously, when we used a bisection table for seeking through a corrupted file, and the end of the bisection table was corrupted we'd most likely fail the entire seek operation. Improve the situation: if we encounter invalid entries in a bisection table, linearly go backwards until we find a working entry again. * man: elaborate on the automatic systemd-journald.socket service dependencies Fixes: #1603