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This reworks the sd-lldp substantially, simplifying things on one hand, and
extending the logic a bit on the other.
Specifically:
- Besides the sd_lldp object only one other object is maintained now,
sd_lldp_neighbor. It's used both as storage for literal LLDP packets, and for
maintainging info about peers in the database. Separation between packet, TLV
and chassis data is not maintained anymore. This should be a major
simplification.
- The sd-lldp API has been extended so that a couple of per-neighbor fields may
be queried directly, without iterating through the object. Other fields that
may appear multiple times, OTOH have to be iterated through.
- The maximum number of entries in the neighbor database is now configurable
during runtime.
- The generation of callbacks from sd_lldp objects is more restricted:
callbacks are only invoked when actual data changed.
- The TTL information is now hooked with a timer event, so that removals from
the neighbor database due to TTLs now result in a callback event.
- Querying LLDP neighbor database will now return a strictly ordered array, to
guarantee stability.
- A "capabilities" mask may now be configured, that selects what type of LLDP
neighbor data is collected. This may be used to restrict collection of LLDP
info about routers instead of all neighbors. This is now exposed via
networkd's LLDP= setting.
- sd-lldp's API to serialize the collected data to text files has been removed.
Instead, there's now an API to extract the raw binary data from LLDP neighbor
objects, as well as one to convert this raw binary data back to an LLDP
neighbor object. networkd will save this raw binary data to /run now, and the
client side can simply parse the information.
- support for parsing the more exotic TLVs has been removed, since we are not
using that. Instead there are now APIs to extract the raw data from TLVs.
Given how easy it is to parse the TLVs clients should do so now directly
instead of relying on our APIs for that.
- A lot of the APIs that parse out LLDP strings have been simplified so that
they actually return strings, instead of char arrays with a length. To deal
with possibly dangerous characters the strings are escaped if needed.
- APIs to extract and format the chassis and port IDs as strings has been
added.
- lldp.h has been simplified a lot. The enums are anonymous now, since they
were never used as enums, but simply as constants. Most definitions we don't
actually use ourselves have eben removed.
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Fixes: #1969
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The iftype is an unsigned short, and not just an unsigned.
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Specifiy the ethernet family, and make sure we se the O_CLOEXEC and O_NONBLOCK
bits how we should for all fds.
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Usually, we place the #pragma once before the copyright blurb in header files,
but in a few cases we didn't. Move those around, so that we do the same thing
everywhere.
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Let's constify the filter program, drop a few includes and structure
definitions.
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After all, most ETHERTYPE variables are defined in the system headers, hence
define these where we defined all other fill-ins for system headers.
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as such
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Let's just keep the few parts we actually need of it in the main sd_lldp
object, so that we can simplify things quite a bit.
While we are at it, remove ifname and mac fields which we make no use of
whatsoever.
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We don't expose them, and they are only of questionnable use.
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This isn't an excercise in creating APIs that are hard to understand, hence
let's call a callback a callback.
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There's really no point in maintaining a state, the state machine is trivial,
and we actually never look at the state anyway, we just keep updating it.
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Fix typo on systemd-resolved log message
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Coverity fixes
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udev/path_id: correct segmentation fault due to missing NULL check
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Fix typo in systemd-resolve man page
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Running "udevadm test-builtin path_id /sys/devices/platform/" results
in a segmentation fault.
The problem is that udev_device_get_subsystem(dev) might return NULL
in a streq() call. Solve this problem by using streq_ptr() instead.
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This is a cosmetic best-effort thing anyway.
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CID #1351544, #1351545.
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Include and internal struct member fixes.
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Memleaks and ubsan
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activate: fix -E option parsing
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Better support for DANE, shell completion
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Fixes #2658.
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gcc thinks that multiplier might be unitialized. Split out the inner
loop to make the function easier to grok.
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The test was failing at -O2+ with gcc 5.3 and 6.0.
"val1" == "val1" and "val1" != "val1" are both valid.
http://stackoverflow.com/questions/4843640/why-is-a-a-in-c
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Various buffers were lost because finish_item() either consumed
the buffer or allocated a new one (if an entry with the same key existed).
The caller would simply forget the buffer in either case.
Also add a check for the case when a valid identifier is followed by
an empty body. We should not allow this.
Also be more consistent in error handling and always print an error
message.
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Das ist verboten!
src/basic/strbuf.c:162:23: runtime error: null pointer passed as argument 2,
which is declared to never be null
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alloc-util: extract overflow check into inline function
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This patch contains a set of little cleanups for alloc-util.h:
1. The malloc_multiply(), realloc_multiply() and memdup_multiply()
functions check allocation related parameters on overflow. Let's
move them to the separate size_multiply_overflow() function for
simplicity, code duplication prevention and possible reuse in future.
2. use SIZE_MAX from stdlib instead of ((size_t) - 1) to be more
clear.
3. The 'a'/'b' variables are renamed to 'size' and 'need' to be
more clear.'
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build-sys: allow wheel group name to be specified
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v2:
- use /sys/class/net to list interfaces,
also copy the same code to systemd-nspawn
v3:
- do not propose "any" twice for --type
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https://tools.ietf.org/html/rfc6698#section-2.2 says:
> The certificate association data field MUST be represented as a string
> of hexadecimal characters. Whitespace is allowed within the string of
> hexadecimal characters
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$ systemd-resolve --tlsa fedoraproject.org
_443._tcp.fedoraproject.org IN TLSA 0 0 1 GUAL5bejH7czkXcAeJ0vCiRxwMnVBsDlBMBsFtfLF8A=
-- Cert. usage: CA constraint
-- Selector: Full Certificate
-- Matching type: SHA-256
$ systemd-resolve --tlsa=tcp fedoraproject.org:443
_443._tcp.fedoraproject.org IN TLSA 0 0 1 GUAL5bejH7czkXcAeJ0vCiRxwMnVBsDlBMBsFtfLF8A=
...
$ systemd-resolve --tlsa=udp fedoraproject.org
_443._udp.fedoraproject.org: resolve call failed: '_443._udp.fedoraproject.org' not found
v2:
- use uint16_t
- refuse port 0
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Fix #2637 (doubled specifier expansion in ExecStart=)
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build-sys: remove duplicated entry in tests
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test-dns-domain should be built and run even without ENABLE_RESOLVED.
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This reverts commit cb48dfca6a8bc15d9081651001a16bf51e03838a.
Exec*-settings resolve specifiers twice:
%%U -> config_parse_exec [cb48dfca6a8] -> %U -> service_spawn -> 0
Fixes #2637
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Do not build tests that depend on resolved when it has been disabled
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If ./configure --disable-resolved has been used, do not try to build
test-dns-packet and test-resolve-tables which depend on it.
Previously, the SOURCES, LIBS and LDADDs for these tests were made conditional
while the main rules for them weren't, causing build failures trying to build a
binary with no sources.
This was uncovered when trying to build udeb for systemd in CI, which uses
--disable-resolved for a minimal build, which uncovered the issue.
Fixes #2651.
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https://github.com/systemd/systemd/issues/2492
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+ perl -e 'exit(!(qq{0} eq qq{\x25U}))'
exec-spec-interpolation.service: Main process exited, code=exited, status=1/FAILURE
exec-spec-interpolation.service: Unit entered failed state.
exec-spec-interpolation.service: Failed with result 'exit-code'.
PID: 11270
Start Timestamp: Wed 2016-02-17 22:21:31 UTC
Exit Timestamp: Wed 2016-02-17 22:21:31 UTC
Exit Code: exited
Exit Status: 1
Assertion 'service->main_exec_status.status == status_expected' failed at src/test/test-execute.c:65, function check(). Aborting.
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