547973dea7
This adds initial support for validating RRSIG/DNSKEY/DS chains when doing lookups. Proof-of-non-existance, or proof-of-unsigned-zones is not implemented yet. With this change DnsTransaction objects will generate additional DnsTransaction objects when looking for DNSKEY or DS RRs to validate an RRSIG on a response. DnsTransaction objects are thus created for three reasons now: 1) Because a user asked for something to be resolved, i.e. requested by a DnsQuery/DnsQueryCandidate object. 2) As result of LLMNR RR probing, requested by a DnsZoneItem. 3) Because another DnsTransaction requires the requested RRs for validation of its own response. DnsTransactions are shared between all these users, and are GC automatically as soon as all of these users don't need a specific transaction anymore. To unify the handling of these three reasons for existance for a DnsTransaction, a new common naming is introduced: each DnsTransaction now tracks its "owners" via a Set* object named "notify_xyz", containing all owners to notify on completion. A new DnsTransaction state is introduced called "VALIDATING" that is entered after a response has been receieved which needs to be validated, as long as we are still waiting for the DNSKEY/DS RRs from other DnsTransactions. This patch will request the DNSKEY/DS RRs bottom-up, and then validate them top-down. Caching of RRs is now only done after verification, so that the cache is not poisoned with known invalid data. The "DnsAnswer" object gained a substantial number of new calls, since we need to add/remove RRs to it dynamically now. |
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| catalog | ||
| coccinelle | ||
| docs | ||
| factory/etc | ||
| hwdb | ||
| m4 | ||
| man | ||
| network | ||
| po | ||
| rules | ||
| shell-completion | ||
| src | ||
| sysctl.d | ||
| system-preset | ||
| sysusers.d | ||
| test | ||
| tmpfiles.d | ||
| tools | ||
| units | ||
| xorg | ||
| .dir-locals.el | ||
| .editorconfig | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .travis.yml | ||
| .vimrc | ||
| .ycm_extra_conf.py | ||
| CODING_STYLE | ||
| DISTRO_PORTING | ||
| LICENSE.GPL2 | ||
| LICENSE.LGPL2.1 | ||
| Makefile-man.am | ||
| Makefile.am | ||
| NEWS | ||
| README | ||
| README.md | ||
| TODO | ||
| autogen.sh | ||
| configure.ac | ||
README.md
systemd - System and Service Manager
Details
- General information about systemd can be found in the systemd Wiki
- Information about build requirements are provided in the README file