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2015-11-27core: fix rlimit parsingEvgeny Vereshchagin
* refuse limits if soft > hard * print an actual value instead of (null) see https://github.com/systemd/systemd/pull/1994#issuecomment-159999123
2015-11-26Merge pull request #2031 from poettering/resolved-search-domainsTom Gundersen
resolved. Fully implement search domains for single-label names
2015-11-26Merge pull request #1994 from karelzak/rlimitsLennart Poettering
core: support <soft:hard> ranges for RLIMIT options
2015-11-25dns-domain: rework dns_label_escape() to not imply memory allocationLennart Poettering
The new dns_label_escape() call now operates on a buffer passed in, similar to dns_label_unescape(). This should make decoding a bit faster, and nicer.
2015-11-25dns-domain: change dns_srv_type_is_valid() return value to boolLennart Poettering
For similar reasons as dns_name_is_root() got changed in the previous commit.
2015-11-25dns-domain: simplify dns_name_is_root() and dns_name_is_single_label()Lennart Poettering
Let's change the return value to bool. If we encounter an error while parsing, return "false" instead of the actual parsing error, after all the specified hostname does not qualify for what the function is supposed to test. Dealing with the additional error codes was always cumbersome, and easily misused, like for example in the DHCP code. Let's also rename the functions from dns_name_root() to dns_name_is_root(), to indicate that this function checks something and returns a bool. Similar for dns_name_is_signal_label().
2015-11-25core: support <soft:hard> ranges for RLIMIT optionsKarel Zak
The new parser supports: <value> - specify both limits to the same value <soft:hard> - specify both limits the size or time specific suffixes are supported, for example LimitRTTIME=1sec LimitAS=4G:16G The patch introduces parse_rlimit_range() and rlim type (size, sec, usec, etc.) specific parsers. No code is duplicated now. The patch also sync docs for DefaultLimitXXX= and LimitXXX=. References: https://github.com/systemd/systemd/issues/1769
2015-11-24resolved: implement client-side DNAME resolutionLennart Poettering
Most servers apparently always implicitly convert DNAME to CNAME, but some servers don't, hence implement this properly, as this is required by edns0.
2015-11-23dns-domain: add calls to join/split SRV/DNS-SD service domainsLennart Poettering
This adds dns_service_join() and dns_service_split() which may be used to concatenate a DNS-SD service name, am SRV service type string, and a domain name into a full resolvable DNS domain name string. If the service name is specified as NULL, only the type and domain are appended, to implement classic, non-DNS-SD SRV lookups. The reverse is dns_service_split() which takes the full name, and split it into the three components again.
2015-11-23dns-domain: add code for verifying validity of DNS-SD service names and typesLennart Poettering
2015-11-19test: remove wrong endianess conversion in test-siphash24Martin Pitt
Commit 933f9caee changed the returned result of siphash24_finalize() from little-endian to native. Follow suit in test-siphash24 and drop the endianess conversion there as well, so that this succeeds on big-endian machines again. Fixes #1946.
2015-11-19Merge pull request #1931 from bengal/dhcp-fqdn-v2Tom Gundersen
libsystemd-network: add support for "Client FQDN" DHCP option (v2)
2015-11-17test: calendarspec sub-second testsHristo Venev
2015-11-17dns-domain: add dns_name_to_wire_format()Beniamino Galvani
The function converts a domain name string to the wire format described in RFC 1035 Section 3.1.
2015-11-17tree-wide: group include of libudev.h with sd-*Thomas Hindoe Paaboel Andersen
2015-11-17Merge pull request #1923 from zonque/siphashLennart Poettering
siphash24: let siphash24_finalize() and siphash24() return the result…
2015-11-16siphash24: let siphash24_finalize() and siphash24() return the result directlyDaniel Mack
Rather than passing a pointer to return the result, return it directly from the function calls. Also, return the result in native endianess, and let the callers care about the conversion. For hash tables and bloom filters, we don't care, but in order to keep MAC addresses and DHCP client IDs stable, we explicitly convert to LE.
2015-11-16tree-wide: sort includesThomas Hindoe Paaboel Andersen
Sort the includes accoding to the new coding style.
2015-11-16siphash42: add tests with unaligned input pointersMartin Pitt
Add test case for calling siphash24 with unaligned input pointers, as we commonly get with calling it on the result on basename() or similar. This provides a test for PR #1916, rescued from the superseded PR #1911. Thanks to Steve Langasek for the test!
2015-11-16Merge pull request #1916 from zonque/alignTom Gundersen
siphash: alignment
2015-11-16siphash24: change result argument to uint64_tMartin Pitt
Change the "out" parameter from uint8_t[8] to uint64_t. On architectures which enforce pointer alignment this fixes crashes when we previously cast an unaligned array to uint64_t*, and on others this should at least improve performance as the compiler now aligns these properly. This also simplifies the code in most cases by getting rid of typecasts. The only place which we can't change is struct duid's en.id, as that is _packed_ and public API, so we can't enforce alignment of the "id" field and have to use memcpy instead.
2015-11-16basic: add unaligned macros for little endianDaniel Mack
Also add test code for that.
2015-11-16core: enable TasksMax= for all services by default, and set it to 512Lennart Poettering
Also, enable TasksAccounting= for all services by default, too. See: http://lists.freedesktop.org/archives/systemd-devel/2015-November/035006.html
2015-11-13Merge pull request #1879 from poettering/networkd-forwardTom Gundersen
stop managing per-interface IP forwarding settings
2015-11-13Merge pull request #1869 from poettering/kill-overridableMichal Schmidt
Remove support for RequiresOverridable= and RequisiteOverridable=
2015-11-13util-lib: optionally, when writing a string to a file, verify string on failureLennart Poettering
With this change, the idiom: r = write_string_file(p, buf, 0); if (r < 0) { if (verify_one_line_file(p, buf) > 0) r = 0; } gets reduced to: r = write_string_file(p, buf, WRITE_STRING_FILE_VERIFY_ON_FAILURE); i.e. when writing the string fails and the new flag WRITE_STRING_FILE_VERIFY_ON_FAILURE is specified we'll not return a failure immediately, but check the contents of the file. If it matches what we wanted to write we suppress the error and exit cleanly.
2015-11-12core: drop "override" flag when building transactionsLennart Poettering
Now that we don't have RequiresOverridable= and RequisiteOverridable= dependencies anymore, we can get rid of tracking the "override" boolean for jobs in the job engine, as it serves no purpose anymore. While we are at it, fix some error messages we print when invoking functions that take the override parameter.
2015-11-12core: simplify handling of %u, %U, %s and %h unit file specifiersLennart Poettering
Previously, the %u, %U, %s and %h specifiers would resolve to the user name, numeric user ID, shell and home directory of the user configured in the User= setting of a unit file, or the user of the manager instance if no User= setting was configured. That at least was the theory. In real-life this was not ever actually useful: - For the systemd --user instance it made no sense to ever set User=, since the instance runs in user context after all, and hence the privileges to change user IDs don't even exist. The four specifiers were actually not useful at all in this case. - For the systemd --system instance we did not allow any resolving that would require NSS. Hence, %s and %h were not supported, unless User=root was set, in which case they would be hardcoded to /bin/sh and /root, to avoid NSS. Then, %u would actually resolve to whatever was set with User=, but %U would only resolve to the numeric UID of that setting if the User= was specified in numeric form, or happened to be root (in which case 0 was hardcoded as mapping). Two of the specifiers are entirely useless in this case, one is realistically also useless, and one is pretty pointless. - Resolving of these settings would only happen if User= was actually set *before* the specifiers where resolved. This behaviour was undocumented and is really ugly, as specifiers should actually be considered something that applies to the whole file equally, independently of order... With this change, %u, %U, %s and %h are drastically simplified: they now always refer to the user that is running the service instance, and the user configured in the unit file is irrelevant. For the system instance of systemd this means they always resolve to "root", "0", "/bin/sh" and "/root", thus avoiding NSS. For the user instance, to the data for the specific user. The new behaviour is identical to the old behaviour in all --user cases and for all units that have no User= set (or set to "0" or "root").
2015-11-12install: follow unit file symlinks in /usr, but not /etc when looking for ↵Lennart Poettering
[Install] data Some distributions use alias unit files via symlinks in /usr to cover for legacy service names. With this change we'll allow "systemctl enable" on such aliases. Previously, our rule was that symlinks are user configuration that "systemctl enable" + "systemctl disable" creates and removes, while unit files is where the instructions to do so are store. As a result of the rule we'd never read install information through symlinks, since that would mix enablement state with installation instructions. Now, the new rule is that only symlinks inside of /etc are configuration. Unit files, and symlinks in /usr are now valid for installation instructions. This patch is quite a rework of the whole install logic, and makes the following addional changes: - Adds a complete test "test-instal-root" that tests the install logic pretty comprehensively. - Never uses canonicalize_file_name(), because that's incompatible with operation relative to a specific root directory. - unit_file_get_state() is reworked to return a proper error, and returns the state in a call-by-ref parameter. This cleans up confusion between the enum type and errno-like errors. - The new logic puts a limit on how long to follow unit file symlinks: it will do so only for 64 steps at max. - The InstallContext object's fields are renamed to will_process and has_processed (will_install and has_installed) since they are also used for deinstallation and all kinds of other operations. - The root directory is always verified before use. - install.c is reordered to place the exported functions together. - Stricter rules are followed when traversing symlinks: the unit suffix must say identical, and it's not allowed to link between regular units and templated units. - Various modernizations - The "invalid" unit file state has been renamed to "bad", in order to avoid confusion between UNIT_FILE_INVALID and _UNIT_FILE_STATE_INVALID. Given that the state should normally not be seen and is not documented this should not be a problematic change. The new name is now documented however. Fixes #1375, #1718, #1706
2015-11-11Merge pull request #1854 from poettering/unit-depsTom Gundersen
Dependency engine improvements
2015-11-11util-lib: use MODE_INVALID as invalid value for mode_t everywhereLennart Poettering
2015-11-11core: fix dependency parsingLennart Poettering
3d793d29059a7ddf5282efa6b32b953c183d7a4d broke parsing of unit file names that include backslashes, as extract_first_word() strips those. Fix this, by introducing a new EXTRACT_RETAIN_ESCAPE flag which disables looking at any flags, thus being compatible with the classic FOREACH_WORD() behaviour.
2015-11-11Merge pull request #1806 from mbachry/ipv6-test-fixLennart Poettering
test: fix failing test-socket-util when running with ipv6.disable=1 kernel param
2015-11-11test-execute: Clarify interaction of PassEnvironment= and MANAGER_USERFilipe Brandenburger
@evverx brought up that test-execute runs under MANAGER_USER which forwards all its environment variables to the services. It turns out it only forwards those that were in the environment at the time of manager creation, so this test was still working. It was still possible to attack it by running something like: $ sudo VAR1=a VAR2=b VAR3=c ./test-execute Prevent that attack by unsetting the three variables explicitly before creating the manager for the test case. Also add comments explaining the interactions with MANAGER_USER and, while it has some caveats, this tests are still valid in that context. Tested by checking that the test running with the variables set from the external environment will still pass.
2015-11-11test-execute: Add tests for new PassEnvironment= directiveFilipe Brandenburger
Check the base case, plus erasing the list, listing the same variable name more than once and when variables are absent from the manager execution environment. Confirmed that `sudo ./test-execute` passes and that modifying the test cases (or the values of the set variables in test-execute.c) is enough to make the test cases fail.
2015-11-11tests: add test for config_parse_pass_environEvgeny Vereshchagin
2015-11-11test: fix failing test-socket-util when running with ipv6.disable=1 kernel paramMarcin Bachry
The ability to use inet_pton(AF_INET6, ...) doesn't depend on kernel ipv6 support (inet_pton is a pure libc function), so make ipv6 address parsing tests unconditional.
2015-11-11test-parse-util: cover negative numbers, leading spaces, and more range errorsMartin Pitt
Motivated by https://github.com/systemd/systemd/issues/1829 where negative numbers were mis-handled on 32 bit platforms by safe_atou*().
2015-11-10Remove snapshot unit typeZbigniew Jędrzejewski-Szmek
Snapshots were never useful or used for anything. Many systemd developers that I spoke to at systemd.conf2015, didn't even know they existed, so it is fairly safe to assume that this type can be deleted without harm. The fundamental problem with snapshots is that the state of the system is dynamic, devices come and go, users log in and out, timers fire... and restoring all units to some state from the past would "undo" those changes, which isn't really possible. Tested by creating a snapshot, running the new binary, and checking that the transition did not cause errors, and the snapshot is gone, and snapshots cannot be created anymore. New systemctl says: Unknown operation snapshot. Old systemctl says: Failed to create snapshot: Support for snapshots has been removed. IgnoreOnSnaphost settings are warned about and ignored: Support for option IgnoreOnSnapshot= has been removed and it is ignored http://lists.freedesktop.org/archives/systemd-devel/2015-November/034872.html
2015-11-10core: accept time units for time-based resource limitsLennart Poettering
Let's make sure "LimitCPU=30min" can be parsed properly, following the usual logic how we parse time values. Similar for LimitRTTIME=. While we are at it, extend a bit on the man page section about resource limits. Fixes: #1772
2015-11-10time-util: add parse_time(), which is like parse_sec() but allows ↵Lennart Poettering
specification of default time unit if none is specified This is useful if we want to parse RLIMIT_RTTIME values where the common UNIX syntax is without any units but refers to a non-second unit (µs in this case), but where we want to allow specification of units.
2015-11-06test-udev: small fixesEvgeny Vereshchagin
* print '\n' on error * use UDEVLIBEXECDIR (udev_rules_new uses it too)
2015-11-03Merge pull request #1744 from evverx/fix-debug-generatorLennart Poettering
debug-generator: respect kernel parameters for default unit setting
2015-11-03proc-cmdline: add runlevel to target mappingEvgeny Vereshchagin
2015-11-02string-util: rework memory_erase() so that it cannot be optimized awayLennart Poettering
memory_erase() so far just called memset(), which the compiler might optimize away under certain conditions if it feels there's benefit in it. C11 knows a new memset_s() call that is like memset(), but may not be optimized away. Ideally, we'd just use that call, but glibc currently does not support it. Hence, implement our own simplistic version of it. We use a GCC pragma to turn off optimization for this call, and also use the "volatile" keyword on the pointers to ensure that gcc will use the pointers as-is. According to a variety of internet sources, either one does the trick. However, there are also reports that at least the volatile thing isn't fully correct, hence let's add some snake oil and employ both techniques. https://news.ycombinator.com/item?id=4711346
2015-11-02Merge pull request #1736 from ronnychevalier/rc/test_execute_more_tests2Lennart Poettering
test-execute: add more tests
2015-11-02Merge pull request #1722 from evverx/port-cap-bounding-set-to-extract-first-wordDaniel Mack
Port capabiliy bounding set parsing to extract_first_word
2015-10-31tests: lookup_paths_init depends on SYSTEMD_UNIT_PATH. Test itEvgeny Vereshchagin
2015-10-31test-path: move all related test files to a specific directoryRonny Chevalier
To avoid polluting test/
2015-10-31test-execute: move all files related to a specific directoryRonny Chevalier
To avoid polluting test/