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Commit Graph

48 Commits

Author SHA1 Message Date
David Herrmann
0b2ec8a3bf sysv-generator: fix coding-style
Fix weird coding-style:
 - proper white-space
 - no if (func() >= 0) bail-outs
 - fix braces
 - avoid 'r' for anything but errno
 - init _cleanup_ variables unconditionally, even if not needed
2015-07-01 13:02:58 +02:00
Felipe Sateler
264581a2f1 sysv-generator: escape names when translating from sysv name
While the LSB suggests only [A-Za-z0-9], that doesn't prevent admins
from doing the wrong thing. Lets not generate invalid names in
that case.
2015-06-29 16:07:49 -03:00
Felipe Sateler
2c09a745eb sysv-generator: detect invalid provided unit names
Do not assume that a non-service unit type is a target.
2015-06-29 16:07:49 -03:00
Lennart Poettering
b2c23da8ce core: rename SystemdRunningAs to ManagerRunningAs
It's primarily just a property of the Manager object after all, and we
try to refer to PID 1 as "manager" instead of "systemd", hence let's to
stick to this here too.
2015-05-11 22:51:49 +02:00
Lennart Poettering
f2341e0a87 core,network: major per-object logging rework
This changes log_unit_info() (and friends) to take a real Unit* object
insted of just a unit name as parameter. The call will now prefix all
logged messages with the unit name, thus allowing the unit name to be
dropped from the various passed romat strings, simplifying invocations
drastically, and unifying log output across messages. Also, UNIT= vs.
USER_UNIT= is now derived from the Manager object attached to the Unit
object, instead of getpid(). This has the benefit of correcting the
field for --test runs.

Also contains a couple of other logging improvements:

- Drops a couple of strerror() invocations in favour of using %m.

- Not only .mount units now warn if a symlinks exist for the mount
  point already, .automount units do that too, now.

- A few invocations of log_struct() that didn't actually pass any
  additional structured data have been replaced by simpler invocations
  of log_unit_info() and friends.

- For structured data a new LOG_UNIT_MESSAGE() macro has been added,
  that works like LOG_MESSAGE() but prefixes the message with the unit
  name. Similar, there's now LOG_LINK_MESSAGE() and
  LOG_NETDEV_MESSAGE().

- For structured data new LOG_UNIT_ID(), LOG_LINK_INTERFACE(),
  LOG_NETDEV_INTERFACE() macros have been added that generate the
  necessary per object fields. The old log_unit_struct() call has been
  removed in favour of these new macros used in raw log_struct()
  invocations. In addition to removing one more function call this
  allows generated structured log messages that contain two object
  fields, as necessary for example for network interfaces that are
  joined into another network interface, and whose messages shall be
  indexed by both.

- The LOG_ERRNO() macro has been removed, in favour of
  log_struct_errno(). The latter has the benefit of ensuring that %m in
  format strings is properly resolved to the specified error number.

- A number of logging messages have been converted to use
  log_unit_info() instead of log_info()

- The client code in sysv-generator no longer #includes core code from
  src/core/.

- log_unit_full_errno() has been removed, log_unit_full() instead takes
  an errno now, too.

- log_unit_info(), log_link_info(), log_netdev_info() and friends, now
  avoid double evaluation of their parameters
2015-05-11 22:24:45 +02:00
Lennart Poettering
7410616cd9 core: rework unit name validation and manipulation logic
A variety of changes:

- Make sure all our calls distuingish OOM from other errors if OOM is
  not the only error possible.

- Be much stricter when parsing escaped paths, do not accept trailing or
  leading escaped slashes.

- Change unit validation to take a bit mask for allowing plain names,
  instance names or template names or an combination thereof.

- Refuse manipulating invalid unit name
2015-05-05 15:06:42 -07:00
Thomas Hindoe Paaboel Andersen
5921fc3cc3 sysv-generator: avoid freeing uninitialized variable
Would happen if lookup_paths_init returns an error.
2015-04-26 14:45:49 +02:00
Zbigniew Jędrzejewski-Szmek
8fba1c8d4e sysv-generator: free memory allocated for service stubs 2015-04-12 16:59:04 -04:00
Zbigniew Jędrzejewski-Szmek
e987f2a809 sysv-generator: always log on oom
This code appears to follow the following convention:
- all errors are logged at point of origin
- oom errors abort execution, non-oom errors are logged but
  execution continues.

Make sure all ooms result in a log message, and remove warning which could
not be reached. Downgrade non-fatal errors to warnings.
2015-04-12 16:59:04 -04:00
Zbigniew Jędrzejewski-Szmek
1e2fee5f75 sysv-generator: split out two nested blocks into functions
No functional change intended. Just splitting this out to make
it easier to edit in the future.
2015-04-12 16:59:04 -04:00
Zbigniew Jędrzejewski-Szmek
f8bc41822b sysv-generator: free LookupPaths also on error
Followup for 7a03974a6f.
2015-04-12 10:20:36 -04:00
Thomas Hindoe Paaboel Andersen
7a03974a6f sysv-generator: fix mem leaks 2015-04-11 13:47:56 +02:00
Zbigniew Jędrzejewski-Szmek
a8ffe6fbcb sysv-generator: initialize LookupPaths just once
With debugging on, sysv-generator would print the full set of
lookup paths for *every* sysv script.

While at it, pass LookupPaths as a pointer in sysv-generator,
and constify it everywhere.
2015-03-14 23:03:21 -04:00
Thomas Hindoe Paaboel Andersen
2eec67acbb remove unused includes
This patch removes includes that are not used. The removals were found with
include-what-you-use which checks if any of the symbols from a header is
in use.
2015-02-23 23:53:42 +01:00
Martin Pitt
4e5589836c sysv-generator: fix wrong "Overwriting existing symlink" warnings
Fix result testing of is_symlink() to ignore negative results, which happen if
the file name does not exist at all. In this case we do not want a warning and
unlink the non-existing link.

https://bugs.debian.org/778700
2015-02-19 11:06:24 +01:00
Lennart Poettering
d5d8429a12 everywhere: remove configurability of sysv runlevel to target mapping
With this change runlevel 2, 3, 4 are mapped to multi-user.target for
good, and 5 to graphical.target. This was already the previous mapping
but is now no longer reconfigurable, but hard-coded into the core.

This should generally simplify things, but also fix one bug: the
sysv-generator previously generated symlinks to runlevel[2-5].target
units, which possibly weren't picked up if these aliases were otherwise
only referenced by the real names "multi-user.target" and
"graphical.target".

We keep compat aliases "runlevel[2345].target" arround for cases where
this target name is explicitly requested.
2015-02-18 20:20:14 +01:00
Martin Pitt
f4f01ec146 sysv-generator: Skip init scripts for existing native services
This avoids taking the SysV init script enablement state into account if we
have native units. Otherwise systemctl disable on native unit would not
be respected in the presence of an enabled SysV script.

Also, there's no need to do all the parsing and creation of service files if we
already have a native systemd unit for the processed SysV init script.
2015-02-11 13:02:01 +01:00
Lennart Poettering
3315f08517 sysv-generator: no need to check for identical symlinks source and target twice
http://lists.freedesktop.org/archives/systemd-devel/2015-January/027594.html
2015-01-28 15:11:49 +01:00
Martin Pitt
40780877c1 sysv-generator: Re-fix .sh suffix handling
Commit 4e48855534 caused the .sh suffix to be stripped from the original
"filename", which caused the generated units to call the wrong init.d script.
Only use the .sh stripped file name for comparing with Provides:, not for
generating the Exec*= lines.

Spotted by sysv-generator-test.
2015-01-28 08:00:28 +01:00
Lennart Poettering
a986501b90 sysv-generator: there's really no need to invoke fstatat() multiple times on the same sysv script
It's sufficient to check once if something is a regular file, hence,
let's do that.
2015-01-28 01:36:40 +01:00
Lennart Poettering
9993ef2e98 sysv-generator: use is_symlink() utility call where appropriate 2015-01-27 23:13:28 +01:00
Lennart Poettering
4e48855534 sysv-generator: minor simplifications 2015-01-27 23:11:01 +01:00
Cristian Rodríguez
0814f65ec6 sysv-generator: only allow regular files in enumerate_sysv()
Otherwise, if the directory contains other directories we fail
at fopen in load_sysv() with EISDIR.
2015-01-22 01:14:53 -05:00
Martin Pitt
77354c7e6f sysv-generator: Replace Provides: symlinks with real units
Since commit b7e7184 the SysV generator creates symlinks for all "Provides:" in
the LSB header. However, this is too greedy; there are cases where the
creation of a unit .service file fails because of an already existing
symlink with the same name:

 - Backup files such as /etc/init.d/foo.bak still have "Provides: foo", and
   thus get a foo.service -> foo.bak.service link. foo.bak would not be enabled
   in rcN.d/, but we (deliberately) create units for all executables in init.d/
   so that a manual "systemctl start" works. If foo.bak is processed before,
   the symlink already exists.

 - init.d/bar has "Provides: foo", while there also is a real init.d/foo. The
   former would create a link foo.service -> bar.service, while the latter
   would fail to create the real foo.service.

If we encounter an existing symlink, just remove it before writing a real unit.

Note that two init.d scripts "foo" and "bar" which both provide the same name
"common" already work. The first processed init script wins and creates the
"common.service" symlink, and the second just fails to create the symlink
again. Thus create an additional test case for this to ensure that it keeps
working sensibly.

https://bugs.debian.org/775404
2015-01-21 17:01:00 +01:00
Martin Pitt
29e0e6d8c1 sysv-generator: Handle .sh suffixes when translating Provides:
When deciding whether the provided name equals the file name in
sysv_translate_facility(), also consider them equal if the file name has a
".sh" suffix.

This was uncovered by commit b7e7184 which then created a symlink
"<name>.service" to itself for ".sh" suffixed init.d scripts.

For additional robustness, refuse to create symlinks to itself in add_alias().

Add test case which reproduces the bug.

https://bugs.debian.org/775889
2015-01-21 14:53:38 +01:00
Lennart Poettering
805e5dda0a sysv-generator: always use fstatat() if we can 2015-01-14 23:18:33 +01:00
Lennart Poettering
b3fae863ef sysv-generator: fix memory leak on failure
This fixes a memory leak introduced by
1ed0c19f81
2015-01-14 23:18:33 +01:00
Michael Biebl
1ed0c19f81 sysv-generator: initialize units before use to ensure correct ordering
The original loop called fix_order() on each service immediately after
loading it, but fix_order() would reference other units which were not
loaded yet.
This resulted in bogus and unnecessary orderings based on the static
start priorities.

Therefore call load_sysv() for every init script when traversing them in
enumerate_sysv(). This ensures that all units are loaded when
fix_order() is called.

Bug-Debian: https://bugs.debian.org/771118
2015-01-07 19:08:58 +01:00
Michael Biebl
b7e7184634 sysv-generator: handle Provides: for non-virtual facility names
The list of provided facility names as specified via Provides: in the
LSB header was originally implemented by adding those facilities to the
Names= property via unit_add_name().

In commit 95ed3294c6 the internal SysV
support was replaced by a generator and support for parsing the Names=
option had been removed from the unit file parsing in v186.
As a result, Provides: for non-virtual facility was dropped when
introducing the sysv-generator.

Since quite a few SysV init scripts still use that functionality (at
least in distros like Debian which have a large body of SysV init
scripts), add back support by making those facility names available via
symlinks to the unit filename to ensure correct orderings between
SysV init scripts which use those facility names.

Bug-Debian: https://bugs.debian.org/774335
2015-01-07 13:20:40 +01:00
Lennart Poettering
821d4b6e06 sysv-generator: properly add Makefile symlink 2014-12-19 20:04:55 +01:00
Lennart Poettering
a34bf9db5d util: rename ignore_file() to hidden_file()
hidden_file() is a bit more precise, since dot files usually shouldn't
be ignored, but certainly be considered hidden.
2014-12-19 20:03:36 +01:00
Zbigniew Jędrzejewski-Szmek
9e37c9544b core: warn and ignore SysVStartPriority=
Option was being parsed but not used for anything.
2014-11-30 19:10:40 -05:00
Michal Schmidt
4a62c710b6 treewide: another round of simplifications
Using the same scripts as in f647962d64 "treewide: yet more log_*_errno
+ return simplifications".
2014-11-28 19:57:32 +01:00
Michal Schmidt
56f64d9576 treewide: use log_*_errno whenever %m is in the format string
If the format string contains %m, clearly errno must have a meaningful
value, so we might as well use log_*_errno to have ERRNO= logged.

Using:
find . -name '*.[ch]' | xargs sed -r -i -e \
's/log_(debug|info|notice|warning|error|emergency)\((".*%m.*")/log_\1_errno(errno, \2/'

Plus some whitespace, linewrap, and indent adjustments.
2014-11-28 19:49:27 +01:00
Michal Schmidt
31938a8560 core: convert log_unit_*() to log_unit_*_errno()
Using:
find . -name '*.[ch]' | xargs sed -r -i -e \
's/log_unit_(debug|info|notice|warning|error|emergency)\(([^"]+), "(.*)%s"(.*), strerror\(-([a-zA-Z_]+)\)\);/log_unit_\1_errno(\2, \5, "\3%m"\4);/'
2014-11-28 13:29:21 +01:00
Zbigniew Jędrzejewski-Szmek
aad0a2c800 sysv-generator: advertise the man page 2014-11-27 17:22:28 -05:00
Lennart Poettering
79008bddf6 log: rearrange log function naming
- Rename log_meta() → log_internal(), to follow naming scheme of most
  other log functions that are usually invoked through macros, but never
  directly.

- Rename log_info_object() to log_object_info(), simply because the
  object should be before any other parameters, to follow OO-style
  programming style.
2014-11-27 22:05:24 +01:00
Thomas Hindoe Paaboel Andersen
cf4acf84c6 Remove repeated includes
In pty.c there was both an include of our pty.h and the system installed pty.h.
The latter contains only two functions openpty and forkpty. We use neither so
I assume it was a typo and removed it. We still compile and pass all tests.
2014-10-01 23:25:50 +02:00
Thomas Hindoe Paaboel Andersen
8c84621c25 sysv-generator: don't check first if hashmap contains the service name
Just test if hashmap_get returns null. hashmap_contains does exactly
same thing internally so this is slightly more efficient for the true
case.

Silences a coverity warning too. CID#1237648
2014-09-17 23:11:58 +02:00
Andreas Henriksson
91e7bad45d sysv-generator: fix resource leak
The "unit" string allocation is not freed on either error or success path.

Found by coverity. Fixes: CID#1237755
2014-09-16 21:49:03 +02:00
Michal Schmidt
d5099efc47 hashmap: introduce hash_ops to make struct Hashmap smaller
It is redundant to store 'hash' and 'compare' function pointers in
struct Hashmap separately. The functions always comprise a pair.
Store a single pointer to struct hash_ops instead.

systemd keeps hundreds of hashmaps, so this saves a little bit of
memory.
2014-09-15 16:08:50 +02:00
Zbigniew Jędrzejewski-Szmek
b2fadec604 Properly report invalid quoted strings
$ systemd-analyze verify trailing-g.service
[./trailing-g.service:2] Trailing garbage, ignoring.
trailing-g.service lacks ExecStart setting. Refusing.
Error: org.freedesktop.systemd1.LoadFailed: Unit trailing-g.service failed to load: Invalid argument.
Failed to create trailing-g.service/start: Invalid argument
2014-07-31 08:56:03 -04:00
Zbigniew Jędrzejewski-Szmek
a2a5291b3f Reject invalid quoted strings
String which ended in an unfinished quote were accepted, potentially
with bad memory accesses.

Reject anything which ends in a unfished quote, or contains
non-whitespace characters right after the closing quote.

_FOREACH_WORD now returns the invalid character in *state. But this return
value is not checked anywhere yet.

Also, make 'word' and 'state' variables const pointers, and rename 'w'
to 'word' in various places. Things are easier to read if the same name
is used consistently.

mbiebl_> am I correct that something like this doesn't work
mbiebl_> ExecStart=/usr/bin/encfs --extpass='/bin/systemd-ask-passwd "Unlock EncFS"'
mbiebl_> systemd seems to strip of the quotes
mbiebl_> systemctl status shows
mbiebl_> ExecStart=/usr/bin/encfs --extpass='/bin/systemd-ask-password Unlock EncFS  $RootDir $MountPoint
mbiebl_> which is pretty weird
2014-07-31 04:00:31 -04:00
Lukas Nykryn
805b573fad sysv: order initscripts which provide $network before network.target
Due to recent changes where $network "maps" to network-online.target
it is not guaranteed that initscript which provides networking will
be terminated after network.target during shutdown which is against LSB.
2014-07-30 09:55:35 +02:00
Thomas Hindoe Paaboel Andersen
260ad50f5b sysv-generator: fix incorect ordering of Wants 2014-06-26 00:37:26 +02:00
Thomas Hindoe Paaboel Andersen
d171ed1c50 sysv-generator: rename PidFile to PIDFile
Spotted by Alexey Shabalin
2014-06-24 23:07:48 +02:00
Colin Ian King
855d111304 Fix spelling mistake, scirpt --> script 2014-06-13 23:00:48 +02:00
Thomas Hindoe Paaboel Andersen
95ed3294c6 Move handling of sysv initscripts to a generator
Reuses logic from service.c and the rc-local generator.

Note that this drops reading of chkconfig entirely. It also drops reading
runlevels from the LSB headers. The runlevels were only used to check for
runlevels outside of the normal 1-5 range and then add special dependencies
and settings. Special runlevels were dropped in the past so it seemed to be
unused code.

The generator does not know about non-generated units with a value set with
SysVStartPriority=. These are therefor not taken into account when converting
start priority to before/after.
2014-06-07 00:59:32 +02:00