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2013-05-01cgls: add --machine/-MZbigniew Jędrzejewski-Szmek
cg_get_machine_path is modified to include the escaped machine name + ".nspawn" if the machine argument is nonnull.
2013-04-30util: Add _sentinel_ to strextend()Colin Walters
Since it must be NULL terminated.
2013-04-30cgroup: make cg_pid_get_path() work properly for co-mounted controllers and ↵Lennart Poettering
normalized named hierarchies
2013-04-30cgroup: do not allow manipulating the cgroup path of units within the ↵Lennart Poettering
systemd:/system subtree
2013-04-30id128: when taking user input for a 128bit ID, validate syntaxLennart Poettering
Also, always accept both our simple hexdump syntax and UUID syntax.
2013-04-25Use attribute(unused) in PROTECT_ERRNOZbigniew Jędrzejewski-Szmek
clang emits warnings about unused attribute _saved_errno_, which drown out other—potentially useful—warnings. gcc documentation is not exactly verbose about the effects of __attribute__((unused)) on variables, but let's assume that it works if the unit test passes.
2013-04-25Add some extra __attribute__ ((format)) sCristian Rodríguez
2013-04-25Make up for attribute malloc with alloc_sizeZbigniew Jędrzejewski-Szmek
It is imperative that open source code be well attributed. Sprinkle attribute((alloc_size)) here and there, telling gcc how much memory we are actually allocating.
2013-04-25Remove erroneous attribute((malloc)) annotationsZbigniew Jędrzejewski-Szmek
According to gcc documentation, returned pointer "cannot alias any other pointer valid when the function returns" and "the memory has undefined content". This second part is (hopefully) untrue for all those functions.
2013-04-26always unconditionally create /dev/rtc and use it internallyKay Sievers
Partially revert 2b3c81b02fa5dd47b19558c7684e113f36a48486, which tried to avoid inconsistent rules about when and how to create the /dev/rtc symlink. Instead of conditionally or not creating the /dev/rtc link at all, now always create it with additional and more reliable udev rules. First try to find the "system rtc" with the hctosys flag, if this is not found, fall back to create the link for /dev/rtc0. Our code now never actively searches for the "system rtc" it can always use /dev/rtc.
2013-04-25util: rework safe_atod() to be locale-independentLennart Poettering
This adds some syntactic sugar with a macro RUN_WITH_LOCALE() that reset the thread-specific locale temporarily.
2013-04-25conf-parser: restrict .include usageLennart Poettering
Disallow recursive .include, and make it unavailable in anything but unit files.
2013-04-24cgroup: always validate cgroup controller namesLennart Poettering
Let's better be safe than sorry.
2013-04-24fileio: unify how we chop off whitespace from key and value in ↵Lennart Poettering
parse_env_file_internal()
2013-04-24do not create /dev/rtc symlink, let systemd search for it if neededKay Sievers
The export of the RTCs hctosys flag is uneccesary, the kernel takes care of the persistemt clock management itself, without any need for: CONFIG_RTC_HCTOSYS=y CONFIG_RTC_HCTOSYS_DEVICE="rtc0" "Chaotic hardware platforms" without native kernel persistent clock support will find the proper RTC with the logic rtc_open() without the need for a custom symlink.
2013-04-24Add set_consume which always takes ownershipZbigniew Jędrzejewski-Szmek
Freeing in error path is the common pattern with set_put().
2013-04-22cgroup: make sure all our cgroup objects have a suffix and are properly escapedLennart Poettering
Session objects will now get the .session suffix, user objects the .user suffix, nspawn containers the .nspawn suffix. This also changes the user cgroups to be named after the numeric UID rather than the username, since this allows us the parse these paths standalone without requiring access to the cgroup file system. This also changes the mapping of instanced units to cgroups. Instead of mapping foo@bar.service to the cgroup path /user/foo@.service/bar we will now map it to /user/foo@.service/foo@bar.service, in order to ensure that all our objects are properly suffixed in the tree.
2013-04-22nspawn: suffix the nspawn cgroups with ".nspawn"Lennart Poettering
As discussed with Dan Berrange it's a good idea to suffix all objects in the cgroup tree with ".something", so that when the system is partitioned using a resource management tool we can drop objects of different types into the same partition directory without generate namespace conflicts. We'l add this to the Pax Control Group document as soon as write access to the fdo wiki is restored.
2013-04-19core/killall: use procfs_file_allocaZbigniew Jędrzejewski-Szmek
2013-04-19Reintroduce f_type comparison macroHarald Hoyer
This reverts commit 4826f0b7b5c0aefa08b8cc7ef64d69027f84da2c. Because statfs.t_type can be int on some architecures, we have to cast the const magic to the type, otherwise the compiler warns about signed/unsigned comparison, because the magic can be 32 bit unsigned. statfs(2) man page is also wrong on some systems, because f_type is not __SWORD_TYPE on some architecures. The following program: int main(int argc, char**argv) { struct statfs s; statfs(argv[1], &s); printf("sizeof(f_type) = %d\n", sizeof(s.f_type)); printf("sizeof(__SWORD_TYPE) = %d\n", sizeof(__SWORD_TYPE)); printf("sizeof(long) = %d\n", sizeof(long)); printf("sizeof(int) = %d\n", sizeof(int)); if (sizeof(s.f_type) == sizeof(int)) { printf("f_type = 0x%x\n", s.f_type); } else { printf("f_type = 0x%lx\n", s.f_type); } return 0; } executed on s390x gives for a btrfs: sizeof(f_type) = 4 sizeof(__SWORD_TYPE) = 8 sizeof(long) = 8 sizeof(int) = 4 f_type = 0x9123683e
2013-04-18Revert f_type fixupsHarald Hoyer
This reverts commit a858b64dddf79177e12ed30f5e8c47a1471c8bfe. This reverts commit aea275c43194b6ac519ef907b62c5c995050fde0. This reverts commit fc6e6d245ee3989c222a2a8cc82a33475f9922f3. This reverts commit c4073a27c555aeceac87a3b02a83141cde641a1e. This reverts commit cddf148028f525be8176e7f1cbbf4f862bd287f6. This reverts commit 8c68a70170b31f93c287f29fd06c6c17edaf19ad. The constants are now casted to __SWORD_TYPE, which should resolve the compiler warnings about signed vs unsigned. After talking to Kay, we concluded: This should be fixed in the kernel, not worked around in userspace tools. Architectures cannot use int and expect magic constants lager than INT_MAX to work correctly. The kernel header needs to be fixed. Even coreutils cannot handle it: #define RAMFS_MAGIC 0x858458f6 # stat -f -c%t / ffffffff858458f6 #define BTRFS_SUPER_MAGIC 0x9123683E # stat -f -c%t /mnt ffffffff9123683e Although I found the perfect working macro to fix the thing :) __extension__ ({ \ bool _ret = false; \ switch(f) { case c: _ret=true; }; \ ( _ret ); \ })
2013-04-18macro.h: let F_TYPE_CMP() macro fail to compile, if second parameter is not ↵Harald Hoyer
const If the magic parameter is not a const, then the macro does not work, so better fail to compile, than be surprised afterwards.
2013-04-18fileio.c: do not parse comments after non-whitespace charsHarald Hoyer
systemd does not want to understand comments after the first non-whitespace char occured. key=foo #comment will result into key == "foo #comment" key="foo" #comment will result into key == "foo#comment" "key= #comment" will result into key == "#comment" "key #comment" is an invalid line
2013-04-18move _cleanup_ attribute in front of the typeHarald Hoyer
http://lists.freedesktop.org/archives/systemd-devel/2013-April/010510.html
2013-04-18rename CMP_F_TYPE to F_TYPE_CMPHarald Hoyer
2013-04-18Add ugly CMP_F_TYPE() macroHarald Hoyer
On some architectures (like s390x) the kernel has the type int for f_type, but long in userspace. Assigning the 32 bit magic constants from linux/magic.h to the 31 bit signed f_type in the kernel, causes f_type to be negative for some constants. glibc extends the int to long for those architecures in 64 bit mode, so the negative int becomes a negative long, which cannot be simply compared to the original magic constant, because the compiler would automatically cast the constant to long. To workaround this issue, we also compare to the (int)MAGIC value in a macro. Of course, we could do #ifdef with the architecure, but it has to be maintained, and the magic constants are 32 bit anyway. Someday, when the int is unsigned or long for all architectures, we can remove this macro again. Until then, keep it as simple as it can be.
2013-04-18Move bus_error to dbus-common and remove bus_error_message_or_strerrorSimon Peeters
bus_error and bus_error_message_or_strerror dit almost exactly the same, so use only one of them and place it in dbus-common.
2013-04-17fixup for cddf148028f52Harald Hoyer
Instead of making a type up, just use __SWORD_TYPE, after reading statfs(2). Too bad, this does not fix s390x because __SWORD_TYPE is (long int) and the kernel uses (int) to fill in the field!!!!!!
2013-04-17fixup 8c68a7017 and cast to (unsigned long)Harald Hoyer
2013-04-17fixed statfs.f_type signed vs unsigned comparisonsHarald Hoyer
statfs.f_type is signed but the filesystem magics are unsigned. Casting the magics to signed will not make the signed. Problem seen on big-endian 64bit s390x with __fsword_t 8 bytes. Casting statfs.f_type to unsigned on the other hand will get us what we need. https://bugzilla.redhat.com/show_bug.cgi?id=953217
2013-04-17core/execute: report invalid environment variables from filesHarald Hoyer
Because "export key=val" is not supported by systemd, an error is logged where the invalid assignment is coming from. Introduce strv_env_clean_log() to log invalid environment assignments, where logging is possible and allowed. parse_env_file_internal() is modified to allow WHITESPACE in keys, to report the issues later on.
2013-04-17fileio:parse_env_file_internal() fix environment file parsingHarald Hoyer
parse_env_file_internal() could not parse the following lines correctly: export key="val" key="val"#comment
2013-04-17fileio: also escape $ and ` when writing out env varsMantas Mikulėnas
These are also considered special by sh and bash.
2013-04-17systemd: ignore hw timestamps in containersZbigniew Jędrzejewski-Szmek
They are irrelevant and misleading. E.g. systemd-analyze: Startup finished in 6d 4h 15min 32.330s (kernel) + 49ms 914us (userspace) = 6d 4h 15min 32.380s becomes Startup finished in 53.735ms (userspace) = 53.735ms which looks much better :)
2013-04-17core/main: use _cleanup_Zbigniew Jędrzejewski-Szmek
2013-04-17Report about syntax errors with metadataZbigniew Jędrzejewski-Szmek
The information about the unit for which files are being parsed is passed all the way down. This way messages land in the journal with proper UNIT=... or USER_UNIT=... attribution. 'systemctl status' and 'journalctl -u' not displaying those messages has been a source of confusion for users, since the journal entry for a misspelt setting was often logged quite a bit earlier than the failure to start a unit. Based-on-a-patch-by: Oleksii Shevchuk <alxchk@gmail.com>
2013-04-17conf-parser: generate 7 parsing functions from a macroZbigniew Jędrzejewski-Szmek
Those functions were identical, apart from typos. Log message is modified to contain the type of destination var (int, double, ...). I think this might make it easier to understand why a value was rejected (e.g. a minus from an unsigned type).
2013-04-16util: make generation of profcs PID paths nicerLennart Poettering
2013-04-16path-util: unify code for detecting OS treesLennart Poettering
This also makes sure we always detect an OS tree the same way, by checking for /etc/os-release.
2013-04-16macro: rework how we define cleanup macrosLennart Poettering
There's now a generic _cleanup_ macro with an argument. The macros for specific types are now defined using this macro, and in the header files where they belong. All cleanup handlers are now inline functions.
2013-04-16util: replace decimal_str_max() by a typesafe macro DECIMAL_STR_WIDTH()Lennart Poettering
DECIMAL_STR_WIDTH() now works on any numeric type, and is easier to distingish from DECIMAL_STR_MAX(). This also replaces another manual implementaiton of ulog10 by this macro.
2013-04-16nspawn: introduce the new /machine/ tree in the cgroup tree and move ↵Lennart Poettering
containers there Containers will now carry a label (normally derived from the root directory name, but configurable by the user), and the container's root cgroup is /machine/<label>. This label is called "machine name", and can cover both containers and VMs (as soon as libvirt also makes use of /machine/). libsystemd-login can be used to query the machine name from a process. This patch also includes numerous clean-ups for the cgroup code.
2013-04-16util: make sure result of hostname_cleanup() passes hostname_is_valid()Lennart Poettering
2013-04-15audit: since nspawn now sets CAP_AUDIT_CONTROL for containers we cannot user ↵Lennart Poettering
this anymore to skip audit session ID retrieval As audit is still broken in containers we need a reliable way how we can determine whether the audit data we read from 7proc is actually useful. Previously we used CAP_AUDIT_CONTROL for this, since nspawn removed that from the nspawn container. This has changed a while back however, which means we used audit data of host system in the container. This adds an explicit container check to the audit calls, so that all audit data is turned off in containers. This should fix session creation with pam_systemd/logind in nspawn containers.
2013-04-15core: always create /user and /machine top-level cgroup dirsLennart Poettering
This allows clients to put inotify watches on these trees to watch for state changes, without having to wait until these dirs are created. This introduces the new top-level /machine cgroup dir as canonical location where OS containers and VMs shall be located (as discussed with the libvirt folks).
2013-04-15do not change console to non-unicode for LANG=CHarald Hoyer
If systemd-vconsole-setup was started with LANG=C (no locale.conf), then it would set the console to non-unicode, which is not what we want.
2013-04-15Fix spelling errors using 'codespell' toolAnatol Pomozov
2013-04-15bus: handle env vars safelyLennart Poettering
Make sure that our library is safe for usage in SUID programs when it comes to env var handling
2013-04-14MurmurHash3: actually inline functionsZbigniew Jędrzejewski-Szmek
"__attribute__((always_inline))" does not replace "inline" and they still need to be used together. This fixes "always_inline function might not be inlinable [-Wattributes]" warning in gcc 4.7 Idea-from-patch-by: Siarhei Siamashka <siarhei.siamashka@gmail.com>
2013-04-14kdbus: generare bloom filters properly for messages we sendLennart Poettering