137 lines
5.6 KiB
ReStructuredText
137 lines
5.6 KiB
ReStructuredText
Gluon 2014.3
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============
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New hardware support
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~~~~~~~~~~~~~~~~~~~~
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* Linksys WRT160NL
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New features
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~~~~~~~~~~~~
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New autoupdater
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---------------
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The autoupdater has been rewritten.
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Two new fields have been added to the manifest:
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``DATE``
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Specifies the time and date the update was released. ``make manifest`` will take care of setting it to the correct value.
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``PRIORITY``
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Specifies the maximum number of days until the update should be attempted (thus lower numbers
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mean the priority is higher). It must be set either in ``site.mk`` or on the ``make manifest`` command line.
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Updates will be attempted at night, between 04:00 and 5:00, with a specific probability.
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When less than ``PRIORITY`` days have passed (calculated using ``DATE`` and the current time),
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the probability will proportional to the time passed. I.e. the update probability will start at 0
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and slowly increase to 1 until ``PRIORITY`` days have passed. From then, the probability will be fixed at 1.
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**Note:** For the new update logic to work, a valid NTP server reachable over the mesh (using IPv6) must
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be configured in ``site.conf``. If the autoupdater is unable to determine the correct time, it will fall back to
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a behavior similar to the old implementation (i.e. hourly update attempts).
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Separation of announced data
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----------------------------
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The data announced by alfred has been split into two data types:
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* *nodeinfo* (type 158) contains all static information about a node
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* *statistics* (type 159) contains all dynamic information about a node
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Both types also contain a new field ``node_id`` which contains an arbitrary unique ID
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(currently the primary MAC address, sans colons) which can be used to match the *nodeinfo*
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with *statistics* information.
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gluon-announced
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---------------
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A new daemon has been added in a new package ``gluon-announced``. This daemon can be
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used for querying the *nodeinfo* data of a node via link-local multicast on the ad-hoc
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interfaces.
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At the moment, this daemon is not used, but we recommend including it in ``site.mk`` nevertheless
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as we plan to implement a new status page showing some information about neighbor nodes in
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the next version of Gluon.
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VPN over IPv6
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-------------
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It is now possible to use fastd in IPv6 WAN networks. This still needs testing, but it should work well.
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Please note that the MTU of 1426 used by many communities for VPN over IPv4 is too big for IPv6 as
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the IPv6 header is 20 bytes longer (fastd over IPv4 has an overhead of 66 bytes,
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fastd over IPv6 has an overhead of 86 bytes).
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More modular Config Mode
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------------------------
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The package ``gluon-config-mode`` has been split into multiple packages to simplify the development of
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extensions. The low-level logic (handling of the button, starting the services for the config mode) has been moved
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into a new package ``gluon-setup-mode``, while ``gluon-config-mode`` only contains the frontend now.
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Extended Expert Mode
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--------------------
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The Expert Mode now has a nice info page. In addition, the new package ``gluon-luci-portconfig`` has been added
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which allows simple configuration of batman-adv on the WAN interface.
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Site validators
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---------------
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The content of the ``site.conf`` is now validated when the images are built to make it less likely to accidentally
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build broken images.
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gluon-firewall
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--------------
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The package ``gluon-firewall`` has been removed. Its features are now part of the packages ``gluon-core`` and
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``gluon-mesh-batman-adv``.
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gluon-ath9k-workaround
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----------------------
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This package installs a cron job which tries to recognize ath9k hangs and restart the WLAN while recording some information.
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It is very rudimentary and we can't really recommend using it on "production" nodes.
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Bugfixes
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~~~~~~~~
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Improved ath9k stability
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------------------------
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Multiple bugs in the WLAN driver ath9k have been fixed upstream. This should greatly improve the WLAN stability.
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odhcp6c 50 day bug
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------------------
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An important update for odhcp6c fixes a bug which caused Gluon nodes to lose their IPv6 addresses on br-client after an uptime
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of 50 days, making the nodes unable perform automated updates (besides other issues).
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IPv6 preference
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---------------
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Commands like ``wget`` now prefer IPv6 for domains with both AAAA and A records, allowing to use such domains for the autoupdater URLs
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and as NTP servers in ``site.conf``.
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Site changes
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~~~~~~~~~~~~
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* ``site.conf``
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- The ``probability`` fields for the autoupdater branches can be dropped as they aren't used anymore
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- The type of the ``enabled`` options of the ``gluon-simple-tc`` configuration has been changed to boolean, so ``true`` and ``false`` must be used instead of 1 and 0 now
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* ``site.mk``
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- Obsolete packages:
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+ ``gluon-firewall``
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- Recommended new packages:
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+ ``gluon-announced``
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+ ``gluon-luci-portconfig``
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- GLUON_PRIORITY must be set in ``site.mk`` or on the ``make manifest`` commandline. Use ``GLUON_PRIORITY ?= 0`` in ``site.mk`` to allow overriding from the commandline.
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Internals
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~~~~~~~~~
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Some internal changes not mentioned before which are interesting for developers:
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* Many more shell scripts have been converted to Lua
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* ``gluon-mesh-vpn-fastd`` now uses the new package ``gluon-wan-dnsmasq``, which provides a secondary DNS server on port 54
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that is only reachable from *localhost* and uses the DNS servers on the WAN interface for everything. This allowed us to
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remove some ugly hacks which were making the DNS servers used depend on the domain being resolved.
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For IPv6, the default route is now controlled via packet marks, so the secondary DNS server and fastd set the packet mark
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so they use the default route provided on the WAN interface instead of the mesh.
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