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2016-06-06network: beef up ipv6 RA support considerablyLennart Poettering
This reworks sd-ndisc and networkd substantially to support IPv6 RA much more comprehensively. Since the API is extended quite a bit networkd has been ported over too, and the patch is not as straight-forward as one could wish. The rework includes: - Support for DNSSL, RDNSS and RA routing options in sd-ndisc and networkd. Two new configuration options have been added to networkd to make this configurable. - sd-ndisc now exposes an sd_ndisc_router object that encapsulates a full RA message, and has direct, friendly acessor functions for the singleton RA properties, as well as an iterative interface to iterate through known and unsupported options. The router object may either be retrieved from the wire, or generated from raw data. In many ways the sd-ndisc API now matches the sd-lldp API, except that no implicit database of seen data is kept. (Note that sd-ndisc actually had a half-written, but unused implementaiton of such a store, which is removed now.) - sd-ndisc will now collect the reception timestamps of RA, which is useful to make sd_ndisc_router fully descriptive of what it covers. Fixes: #1079
2016-06-06network: use inet_ntop() rather than SD_NDISC_ADDRESS_FORMAT_VAL() when ↵Lennart Poettering
serializing Let's use the usual libc API for serializing IPv6 addresses, instead of the NDISC-specific macro we should get rid of anyway.
2016-06-06util: make it easier to check whether in_addr or in6_addr addresses are NULLLennart Poettering
2016-06-06util-lib: add accessors for unaligned native endian wordsLennart Poettering
2016-06-06exit-status: update comments a bitLennart Poettering
2016-06-06lldp: include sys/types.h in sd-lldp.hLennart Poettering
After all, we use clockid_t which is defined there.
2016-06-06lldp: minor coding style improvementLennart Poettering
2016-06-06lldp: add sd_lldp_get_event() callLennart Poettering
sd-ndisc has something like this, let's add this for sd-lldp, too.
2016-06-06lldp: deal properly with recv() returning EAGAIN/EINTRLennart Poettering
It might very well return EAGAIN in case of packet checksum problems and suchlike, hence let's better handle this nicely, the same way as we do it in the other sd-network libraries for incoming datagrams.
2016-06-06lldp: pass correct neighbor object to REMOVED callbackLennart Poettering
2016-06-06lldp: rename TLV accessor pseudo-macrosLennart Poettering
Let's make sure the inline functions for retrieving TLV data actually carry TLV in the name, so that we don#t assume they retrieve the whole, raw packet data.
2016-06-06lldp: make sd_lldp_neighbor_tlv_rewind() return whether there's a first entryLennart Poettering
This way it's nicer to use as it matches how sd_lldp_neighbor_tlv_next() indicates an EOF too via its return value.
2016-06-06lldp: use NULL instead 0, when we deal with a pointerLennart Poettering
2016-06-06lldp: add _public_ to a two exported functions missing itLennart Poettering
2016-06-06lldp: clarify that sd_lldp_neighbor_get_ttl() returns secondsLennart Poettering
Let's simply encode this in the parameter name.
2016-06-06lldp: add proper ref counting to sd_lldp object and a separate call for ↵Lennart Poettering
setting the ifindex Let's make sd-lldp a bit more like sd-ndisc ant the other APIs, and add proper ref counting and a separate call for setting the ifindex. This also adds a new lldp_reset() call we can use at various places to close all fds. This is also similar to how sd-ndisc already does it.
2016-06-06exit-code: minor coding style updatesLennart Poettering
2016-06-06sd-lldp: take triple timestamp when reading LLDP packetsLennart Poettering
It's a good idea to store away the recption time of LLDP packets in the neighbor object, simply because the LLDP data only has a validity of a certain amount of time. Hence, let's record the timestamp when we receive the datagram and expose an API for it. Also, automatically expire LLDP neighbors based on this new timestamp.
2016-06-06sd-event: port over to new triple timestamp logicLennart Poettering
2016-06-06time-util: add triple timestamp objectLennart Poettering
We already have a double timestamp object that we use whenever we need both a MONOTONIC and a REALTIME timestamp taken and stored. With this change we also add a triple timestamp object that in addition stores a BOOTTIME timestamp, which is useful for a few usecases. Note that we keep dual_timestamp around, as it is useful in many cases where triple_timestamp is not, in particular because retrieving the monotonic and realtime timestamps is much cheaper on Linux that getting the boottime timestamp.
2016-06-06machinectl: Added stop as alias for poweroff (#3406)Christian Rebischke
2016-06-06networkd: remove unused variable (#3447)Tobias Jungel
this patch solves the following waring: ../src/network/networkd-ndisc.c:197:13: warning: unused variable ‘r’ [-Wunused-variable] int r; fixes acac5b2f
2016-06-06cgtop: fix ret pointer usage (#3443)Alessandro Puccetti
2016-06-05cgtop: add option to show a single cgroup subtree (#3413)Alessandro Puccetti
When many services are running, it was difficult to see only the interesting ones. This patch allows to show only the subtree of interest.
2016-06-05automount: handle expire_tokens when the mount unit changes its state (#3434)michaelolbrich
This basically reverts 7b2fd9d51259f6cf350791434e640ac3519acc6c ("core: remove duplicate code in automount_update_mount()"). This was not duplicate code. The expire_tokens need to be handled as well: Send 0 == success for MOUNT_DEAD (umount successful), do nothing for MOUNT_UNMOUNTING (not yet done) and an error for everything else. Otherwise the automount logic will assume unmounting is not done and will not send any new requests for mounting. As a result, the corresponding mount unit is never mounted. Without this, automounts with TimeoutIdleSec= are broken. Once the idle timeout triggered a umount, any access to the corresponding filesystem hangs forever. Fixes #3332.
2016-06-04systemctl: install sigbus handler (#3435)Evgeny Vereshchagin
This makes systemctl robust regarding journal truncation. This is a follow-up for 2cf4172a71860c6e44 Fixes: Core was generated by `./systemctl status systemd-journald'. Program terminated with signal SIGBUS, Bus error. PID 8569 - core TID 8569: #0 0x00007f246cc89ed6 __memcmp_sse4_1 #1 0x0000557ebbc6f42c journal_file_init_header #2 0x0000557ebbc77262 journal_file_open #3 0x0000557ebbc42999 file_type_wanted #4 0x0000557ebbc42e08 add_any_file #5 0x0000557ebbc43832 add_directory #6 0x0000557ebbc4401c add_root_directory #7 0x0000557ebbc442e9 add_root_directory #8 0x0000557ebbc446fc add_search_paths #9 0x0000557ebbbacb5e show_journal_by_unit #10 0x0000557ebbb8376d print_status_info #11 0x0000557ebbb86a0b show_one #12 0x0000557ebbb87954 show #13 0x0000557ebbc20b1f dispatch_verb #14 0x0000557ebbb90615 systemctl_main #15 0x0000557ebbb9159f main #16 0x00007f246cb3e731 __libc_start_main #17 0x0000557ebbb75ae9 _start
2016-06-04Merge pull request #3392 from poettering/assorted-stuffZbigniew Jędrzejewski-Szmek
Assorted stuff
2016-06-04networkd-link: fix handler typo for route_remove() (#3433)tomty89
Obviously we've been using the wrong handler here. Fixes #3352.
2016-06-03core: Restrict mmap and mprotect with PAGE_WRITE|PAGE_EXEC (#3319) (#3379)Topi Miettinen
New exec boolean MemoryDenyWriteExecute, when set, installs a seccomp filter to reject mmap(2) with PAGE_WRITE|PAGE_EXEC and mprotect(2) with PAGE_EXEC.
2016-06-03Merge pull request #3409 from tomty89/update-2Lennart Poettering
networkd-dhcp6: DHCPv6 starting fixes
2016-06-03Merge pull request #3418 from htejun/cgroup2-log-compatLennart Poettering
core: log cgroup legacy and unified hierarchy setting translations
2016-06-03core: always use "infinity" for no upper limit instead of "max" (#3417)Tejun Heo
Recently added cgroup unified hierarchy support uses "max" in configurations for no upper limit. While consistent with what the kernel uses for no upper limit, it is inconsistent with what systemd uses for other controllers such as memory or pids. There's no point in introducing another term. Update cgroup unified hierarchy support so that "infinity" is the only term that systemd uses for no upper limit.
2016-06-03missing include added for build with -DDEBUG (#3424)Tobias Jungel
2016-06-03resolved: fix comments in resolve.conf for search domain overflows (#3422)Martin Pitt
Write comments about "too many search domains" and "Total length of all search domains is too long" just once. Also put it on a separate line, as resolv.conf(5) only specifies comments in a line by themselves. This is ugly to do if write_resolv_conf_search() gets called once for every search domain. So change it to receive the complete OrderedSet instead and do the iteration by itself. Add test cases to networkd-test.py. https://launchpad.net/bugs/1588229
2016-06-02core: log cgroup legacy and unified hierarchy setting translationsTejun Heo
To accommodate changes in kernel interface, cgroup unified hierarchy support added several configuration items which overlap with the existing resource control settings and there is simple config translation between the overlapping settings to ease the transition. As why certain cgroup knobs are being configured can become confusing, this patch adds a master warning message which is printed once when such translation is first used and logs each translation with a debug message. v2: - Switched to log_unit*().
2016-06-02core: pass Unit into cgroup_context_apply() and use log_unit*()Tejun Heo
cgroup_context_apply() and friends take CGroupContext and cgroup path as input and has no way of getting back to the associated Unit and thus uses raw cgroup path for logging. This makes the log messages difficult to track down. There's no reason to avoid passing in Unit into these functions. Pass in Unit and use log_unit*() instead. While at it, make cgroup_context_apply(), which has no outside users, static. Also, drop cgroup path from log messages where the path itself isn't too interesting and can be easily obtained from the unit.
2016-06-02networkd-ndisc: do not start DHCPv6 when after NDISC timeoutTom Yan
For it's silly and unnecessary. Although it was apparently mandated by RFC 2462 in [5.5.2. Absence of Router Advertisements], that has been changed in the same section of RFC 4862, which obsoleted the former RFC.
2016-06-01core: add pre-defined syscall groups to SystemCallFilter= (#3053) (#3157)Topi Miettinen
Implement sets of system calls to help constructing system call filters. A set starts with '@' to distinguish from a system call. Closes: #3053, #3157
2016-06-01networkd-dhcp6: generalize DHCPv6 client (re)startingTom Yan
dhcp6_request_address() was merely a function to switch the DHCPv6 client from "stateless" mode to "stateful" mode. It was also a one-way switch. Also, to (re)start the client, we would need to repeat separate function calls. In this patch, dhcp6_request_address() is made a general starter/manager of the DHCPv6 client. It now takes an extra parameter so we will be specifying which mode the DHCPv6 client should be started in. Also it will keep track of the current mode and compare with the newly requested mode, and only restart the client in case there is a difference between them. This also makes sure that the DHCPv6 client will be (re)started accordingly as per the Router Advertisement flags.
2016-05-31systemctl: systemctl show --property' needs verification of property (#3364)Susant Sahani
systemctl --property doesn't validate if a requested property is valid or not, and always returns with an exit code of 0, regardless of whether the requested property exists or not. How reproducible: This works fine: Id=multi-user.target But put in a non-existing property: Id=default.targets.service Id=default.targets.service 0 [root@shou18lkvm8 ~]# systemctl show --property Id this.is.rubbish; echo $? Id=this.is.rubbish.service 0 After: sus@maximus bz-95593]$ ./systemctl show --property Id this.is.rubbish; echo $? Can't display property this.is.rubbish. Unit this.is.rubbish.service does not exist. 4 fixes #2295
2016-05-31systemctl: Replace init script error codes with enum (#3400)Susant Sahani
Now we just using constants for the init script exit status codes. Replace those error codes with enum so that it's more meaningful and readable.
2016-05-31network: fix wrong include of source file "ether-addr-util.c" (#3402)Thomas Haller
Fixes: 9ed8b06c9be4a5efae432d5cf4b1c47d03e6f107
2016-05-30dhcp-server: fix integer underflowLennart Poettering
Let's better ignore an invalid message size parameter, than assume ridiculously larger sizes.
2016-05-30pager: don't start pager if the terminal is explicitly set to TERM=dumbLennart Poettering
As suggested here: https://bugs.freedesktop.org/show_bug.cgi?id=64737#c8 This adds a new call terminal_is_dumb() and makes use of this where appropriate.
2016-05-30tree-wide: check colors_enabled() before outputting ANSI color stringsLennart Poettering
2016-05-30tree-wide: use ansi_highlight() instead of ANSI_HIGHLIGHT where appropriateLennart Poettering
Let's make sure SYSTEMD_COLORS is honour by more tools
2016-05-30sysv-generator: don't create Conflicts= deps towards shutdown.target anymoreLennart Poettering
This is redundant as SysV services get DefaultDependencides=yes anyway, and thus conflict with shutdown.target anyway. Hence, let's simplify our code here.
2016-05-30util-lib: make localed's nonempty() generic, rename it to empty_to_null() ↵Lennart Poettering
and make use of it everywhere
2016-05-30networkd: bridge add support to configure VLAN filtering (#3344)Tobias Jungel
This patch implements support for IFLA_BR_VLAN_FILTERING configuration.
2016-05-30systemctl: return diffrent error code if service exist or not (#3385)Susant Sahani
Before: [sus@maximus bz-1256858]$ systemctl status rsyslog.service;echo $? ● rsyslog.service - System Logging Service Loaded: loaded (/usr/lib/systemd/system/rsyslog.service; enabled; vendor preset: enabled) Drop-In: /etc/systemd/system/rsyslog.service.d └─50-CPUShares.conf Active: inactive (dead) since Mon 2016-05-30 11:54:25 IST; 2h 26min ago Docs: man:rsyslogd(8) http://www.rsyslog.com/doc/ Process: 1159 ExecStart=/usr/sbin/rsyslogd -n $SYSLOGD_OPTIONS (code=exited, status=0/SUCCESS) Main PID: 1159 (code=exited, status=0/SUCCESS) May 30 11:07:50 maximus systemd[1]: Starting System Logging Service... May 30 11:07:50 maximus systemd[1]: Started System Logging Service. May 30 11:54:25 maximus systemd[1]: Stopping System Logging Service... May 30 11:54:25 maximus systemd[1]: Stopped System Logging Service. 3 [sus@maximus bz-1256858]$ systemctl status hello.service;echo $? ● hello.service Loaded: not-found (Reason: No such file or directory) Active: inactive (dead) 3 After: $ ./systemctl status hello.service;echo $? Failed to dump process list, ignoring: Access denied ● hello.service Loaded: not-found (Reason: No such file or directory) Active: inactive (dead) 4 [sus@maximus bz-1256858]$ ./systemctl status rsyslog.service;echo $? Failed to dump process list, ignoring: Access denied ● rsyslog.service - System Logging Service Loaded: loaded (/usr/lib/systemd/system/rsyslog.service; enabled; vendor preset: enabled) Drop-In: /etc/systemd/system/rsyslog.service.d └─50-CPUShares.conf Active: inactive (dead) since Mon 2016-05-30 11:54:25 IST; 2h 24min ago Docs: man:rsyslogd(8) http://www.rsyslog.com/doc/ Process: 1159 ExecStart=/usr/sbin/rsyslogd -n $SYSLOGD_OPTIONS (code=exited, status=0/SUCCESS) Main PID: 1159 (code=exited, status=0/SUCCESS) May 30 11:07:50 maximus systemd[1]: Starting System Logging Service... May 30 11:07:50 maximus systemd[1]: Started System Logging Service. May 30 11:54:25 maximus systemd[1]: Stopping System Logging Service... May 30 11:54:25 maximus systemd[1]: Stopped System Logging Service. 3 Fixes: 1092
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