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2016-01-06resolved: introduce support for per-interface negative trust anchorsLennart Poettering
2016-01-06resolved: when dumping the NTA database, sort outputLennart Poettering
Now that we populate the trust database by default with a larger number of entires, we better make sure to output a more readable version.
2016-01-06resolved: populate negative trust anchor by defaultLennart Poettering
Let's increase compatibility with many private domains by default, and ship a default NTA list of wel-known private domains, where it is unlikely they will be deployed as official TLD anytime soon.
2016-01-06resolved: log all OOM errorsLennart Poettering
2016-01-06resolved: reuse dns_trust_anchor_knows_domain() at another locationLennart Poettering
2016-01-06resolved: count unsupported dnssec algorithm as indeterminate RRsetLennart Poettering
After all, when we don't support the algorithm we cannot determine validity.
2016-01-05resolved: try to detect fritz.box-style private DNS zones, and downgrade to ↵Lennart Poettering
non-DNSSEC mode for them This adds logic to detect cases like the Fritz!Box routers which serve a private DNS domain "fritz.box" under the TLD "box" that does not exist in the root servers. If this is detected DNSSEC validation is turned off for this private domain, thus improving compatibility with such private DNS zones. This should be fairly secure as we first rely on the proof that .box does not exist before this logic is applied. Nevertheless the logic is only enabled for DNSSEC=allow-downgrade mode. This logic does not work for routers that set up a full DNS zone directly under a non-existing TLD, as in that case we cannot prove that the domain is truly non-existing according to the root servers.
2016-01-05resolved: when dumping trust anchor contents, clarify when it is emptyLennart Poettering
2016-01-05resolved: fix DNSSEC transaction dependency recursion checkLennart Poettering
We followed the wrong connection. This only worked sometimes at all, because we also return the wrong error code.
2016-01-05update DNSSEC TODOLennart Poettering
2016-01-05resolved,networkd: add a per-interface DNSSEC settingLennart Poettering
This adds a DNSSEC= setting to .network files, and makes resolved honour them.
2016-01-05resolved: log about per-interface setting parse errorsLennart Poettering
2016-01-05resolved: properly release all DnsServers that belong to a linkLennart Poettering
2016-01-05resolved: rename "downgrade-ok" mode to "allow-downgrade"Lennart Poettering
After discussing this with Tom, we figured out "allow-downgrade" sounds nicer.
2016-01-05man: document that DNS= and Domains= is implemented by resolvedLennart Poettering
2016-01-05resolved: make MulticastDNS support configurable in resolved.confLennart Poettering
The option is already there, but wasn't exported in the configuration file so far. Fix that.
2016-01-05networkd,resolved: add a per-interface mdns configuration optionLennart Poettering
2016-01-05resolved,networkd: unify ResolveSupport enumLennart Poettering
networkd previously knew an enum "ResolveSupport" for configuring per-interface LLMNR support, resolved had a similar enum just called "Support", with the same value and similar pasers. Unify this, call the enum ResolveSupport, and port both daemons to it.
2016-01-05basic: add string table macros for "extended boolean" enumsLennart Poettering
In a couple of cases we maintain configuration settings that know an on and off state, like a boolean, plus some additional states. We generally parse them as booleans first, and if that fails check for specific additional values. This adds a generalized set of macros for parsing such settings, and ports one use in resolved and another in networkd over to it.
2016-01-05sd-network: unify parsing of /run/systemd/netif/links/* string fieldsLennart Poettering
2016-01-05man: fix a few typosLennart Poettering
2016-01-05Merge pull request #2272 from kinvolk/alban/typosLennart Poettering
machine: fix typo: MS_MOUNT does not exist
2016-01-05machine: fix typo: MS_MOUNT does not existAlban Crequy
2016-01-05Merge pull request #2269 from poettering/dnssec11Tom Gundersen
Eleventh DNSSEC patch set
2016-01-05man: add documentation for dnssec-trust-anchors.d(5)Lennart Poettering
2016-01-05resolved: also skip built-in trust anchor addition of there's a DNSKEY RR ↵Lennart Poettering
for the root domain defined We already skip this when the trust anchor files define a DS RR for the root domain, now also skip it if there's a DNSKEY RR.
2016-01-05resolved: move trust anchor files to /etc/dnssec-trust-anchors.d/Lennart Poettering
These files are not specific to resolved really, and this is then more in-line with how /etc/sysctl.d and suchlike is handled.
2016-01-05Merge pull request #2205 from pohly/cgroup-smack-run-labelLennart Poettering
mount-setup.c: fix handling of symlink Smack labelling in cgroup setup
2016-01-05mount-setup.c: fix handling of symlink Smack labelling in cgroup setupPatrick Ohly
The code introduced in f8c1a81c51 (= systemd 227) failed for me with: Failed to copy smack label from net_cls to /sys/fs/cgroup/net_cls: No such file or directory There is no need for a symlink in this case because source and target are identical. The symlink() call is allowed to fail when the target already exists. When that happens, copying the Smack label must be skipped. But the code also failed when there is a symlink, like "cpu -> cpu,cpuacct", because mac_smack_copy() got called with src="cpu,cpuacct" which fails to find the entry because the current directory is not inside /sys/fs/cgroup. The absolute path to the existing entry must be used instead.
2016-01-05Merge pull request #2268 from whot/hwdb-updatesLennart Poettering
hwdb: add axis ranges and resolution for Dell Lattitude E6220
2016-01-05resolved: when caching negative responses, honour NSEC/NSEC3 TTLsLennart Poettering
When storing negative responses, clamp the SOA minimum TTL (as suggested by RFC2308) to the TTL of the NSEC/NSEC3 RRs we used to prove non-existance, if it there is any. This is necessary since otherwise an attacker might put together a faked negative response for one of our question including a high-ttl SOA RR for any parent zone, and we'd use trust the TTL.
2016-01-05man: add basic documentation for resolved.conf's DNSSEC= switchLennart Poettering
2016-01-05hwdb: add axis ranges and resolution for Dell Lattitude E6220Peter Hutterer
https://bugzilla.redhat.com/show_bug.cgi?id=1293576
2016-01-04update DNSSEC TODOLennart Poettering
2016-01-04resolved: explicitly handle case when the trust anchor is emptyLennart Poettering
Since we honour RFC5011 revoked keys it might happen we end up with an empty trust anchor, or one where there's no entry for the root left. With this patch the logic is changed what to do in this case. Before this patch we'd end up requesting the root DS, which returns with NODATA but a signed NSEC we cannot verify, since the trust anchor is empty after all. Thus we'd return a DNSSEC result of "missing-key", as we lack a verified version of the key. With this patch in place, look-ups for the root DS are explicitly recognized, and not passed on to the DNS servers. Instead, if downgrade-ok mode is on an unsigned NODATA response is synthesized, so that the validator code continues under the assumption the root zone was unsigned. If downgrade-ok mode is off a new transaction failure is generated, that makes this case recognizable.
2016-01-04resolved: introduce a proper bus error for DNSSEC validation errorsLennart Poettering
2016-01-04resolved: explicitly avoid cyclic transaction dependenciesLennart Poettering
We already try hard not to create cyclic transaction dependencies, where a transaction requires another one for DNSSEC validation purposes, which in turn (possibly indirectly) pulls in the original transaction again, thus resulting in a cyclic dependency and ultimately a deadlock since each transaction waits for another one forever. So far we wanted to avoid such cyclic dependencies by only going "up the tree" when requesting auxiliary RRs and only going from one RR type to another, but never back. However this turned out to be insufficient. Consider a domain that publishes one or more DNSKEY but which has no DS for it. A request for the domain's DNSKEY triggers a request for the domain's DS, which will then fail, but return an NSEC, signed by the DNSKEY. To validate that we'd request the DNSKEY again. Thus a DNSKEY request results in a DS request which results in the original DNSKEY request again. If the original lookup had been a DS lookup we'd end up in the same cyclic dependency, hence we cannot statically break one of them, since both requests are of course fully valid. Hence, do full cyclic dependency checking: each time we are about to add a dependency to a transaction, check if the transaction is already a dependency of the dependency (recursively down the tree).
2016-01-04resolved: block transaction GC'ing while ↵Lennart Poettering
dns_transaction_request_dnssec_keys() is running If any of the transactions started by dns_transaction_request_dnssec_keys() finishes promptly without requiring asynchronous operation this is reported back to the issuing transaction from the same stackframe. This might ultimately result in this transaction to be freed while we are still in its _request_dnssec_keys() stack frame. To avoid memory corruption block the transaction GC while in the call, and manually issue a GC after it returned.
2016-01-04update RFCsLennart Poettering
2016-01-04resolved: partially implement RFC5011 Trust Anchor supportLennart Poettering
With this patch resolved will properly handle revoked keys, but not augment the locally configured trust anchor database with newly learned keys. Specifically, resolved now refuses validating RRsets with revoked keys, and it will remove revoked keys from the configured trust anchors (only until reboot). This patch does not add logic for adding new keys to the set of trust anchors. This is a deliberate decision as this only can work with persistent disk storage, and would result in a different update logic for stateful and stateless systems. Since we have to support stateless systems anyway, and don't want to encourage two independent upgrade paths we focus on upgrading the trust anchor database via the usual OS upgrade logic. Whenever a trust anchor entry is found revoked and removed from the trust anchor a recognizable log message is written, encouraging the user to update the trust anchor or update his operating system.
2016-01-04resolved: fix DNSSEC canonical ordering logicLennart Poettering
When applying canonical DNSSEC ordering for an RRset only order by the wire format of the RRs' RDATA, not by the full wire formatting. The RFC isn't particularly clear about this, but this is apparently how it is done. This fixes validation of pentagon.gov's DS RRset.
2016-01-04resolved: actually make use of message ID when logging about failed DNSSEC ↵Lennart Poettering
validation
2016-01-04Merge pull request #2259 from evverx/fix-test-executeZbigniew Jędrzejewski-Szmek
core: only skip setup of "special" signals in test mode
2016-01-04Merge pull request #2263 from awilfox/add-discoverable-root-for-itaniumZbigniew Jędrzejewski-Szmek
Add GPT partition type GUID for Itanium root partition
2016-01-04core: don't enable special signals in test modeEvgeny Vereshchagin
Fixes: $ systemd-analyze verify ... Failed to open /dev/tty0: Permission denied
2016-01-04Add GPT partition type GUID for Itanium root partitionAndrew Wilcox
2016-01-04Merge pull request #2248 from APokorny/detect-touchscreens-with-btn-touchMartin Pitt
udev: Fix touch screen detection
2016-01-04core: revert "manager: do not set up signals in test mode"Evgeny Vereshchagin
This reverts commit 5aa1054521596c3d268db5f4aff9f2b69647ffc9. Fixes test-execute $ sudo make check TESTS=test-execute ... $ cat test-execute.log + test /tmp/test-exec_workingdirectory = /tmp/test-exec_workingdirectory Test timeout when testing exec-workingdirectory.service exec-workingdirectory.service UMask: 0022 WorkingDirectory: /tmp/test-exec_workingdirectory RootDirectory: / NonBlocking: no PrivateTmp: no PrivateNetwork: no PrivateDevices: no ProtectHome: no ProtectSystem: no IgnoreSIGPIPE: yes RuntimeDirectoryMode: 0755 StandardInput: null StandardOutput: inherit StandardError: inherit FAIL test-execute (exit status: 1)
2016-01-03resolved: refuse revoked DNSKEYs in trust anchorLennart Poettering
2016-01-03resolved: never authenticate RRsets with revoked keysLennart Poettering