• Fixed addition of new UCI files which were not previously already present on the file system

Features

• The SIGUSR1 signal can be now used to interrupt the interval sleep and check for configuration changes again
• Made the procd respawn parameters configurable
• The agent now stores the any UCI configuration which is overwritten by OpenWISP with the goal of restoring it if the piece of configuration overwritten by OpenWISP is removed
• Added management_interval and registration_interval options

Changes

Backward incompatible changes

• Remove unneeded SSL package implementation definitions

Other changes

• Made configuration checksum persistent to fix 2 problems:
  1. If the openwisp-config daemon is restarted (e.g. by the openwisp-controller via ssh) after it already downloaded the latest checksum but before it has applied the configuration, all further calls of configuration_changed() (until CONFIGURATION_CHECKSUM is deleted, e.g. by a reboot) will imply that everything is already up-to-date, although the configuration was never applied
  2. prevents the configuration from being downloaded and written again after a reboot
• Do not wait for management interface during registration: If openwisp-config is not registered yet, do not wait for the management interface to be ready because we can assume the management interface configuration is not present yet
• Increased report status retries: in some cases the report status operation may fail because the network reload could take a few minutes to complete (eg: in mesh networks scenarios) and therefore the agent must be a bit more patient before giving up
• Refactored init script to make it more consistent with the best practices used in the OpenWrt community
• If the agent receives 404 response from the server when downloading the configuration checksum, after the number of attempts specified in checksum_max_retries fail, the agent assumes the device has been deleted from OpenWISP and exits

Bugfixes

• Use configured curl timeout values in default configuration test; Without this fix, it's possible that the configuration test fails while the regular checksum fetch succeeds
• Ensured config download error is detected: adding the --fail flag to curl makes it exit with a non zero exit code in case the server respond with an HTTP status code which is not 200 OK, without this fix, a bad response is interpreted as a valid configuration and the agent removes the old configuration, then installs the new configuration, which fails and the router remains with an empty configuration, effectively causing a disruption of service
• Fixed post-registration-hook logging line which was mistakenly mentioning post-reload-hook instead of post-registration-hook
• Fixed service reload handling for unnamed uci sections: the openwisp agent modifies the configuration on first contact by rewriting all anonymous UCI sections into na

Features

• Added support for Template Tags
• Send hardware and software information (hardware model, operating system, soc) during registration and boot (too keep it up to date)
• Added post-reload-hook and post-registration-hook
• Added management_interface config option, which allows sending the IP of the management interface to OpenWISP, a pre-requisite for enabling features of OpenWISP as push updates, firmware upgrades and fping health checks
• Added support for hardware ID / serial number
• Added random bootup delay
• Added default_hostname config option
• Improved automatic recovery of previous backups when configuration updates fail
• Added post_reload_delay and test_retries config options

Changes

• Backward incompatible change: list options are now overwritten to prevent duplication
• Improved log message in case of registration failure
• Allow $MAC_ADDRESS to be bridge
• Removed polarssl
• Check sanity of downloaded UCI files before applying them
• Give up with registration only when 403 is returned by the server
• Show entire registration error message in logs
• Updated examples and precompiled packages to use OpenWRT 19.07
• Made check of OpenWISP Controller header case insensitve

Bugfixes

• Ensured order of UCI sections is preserved during config write operations, handle special section types
• Ensure anonymous UCI config sections are handled well
• Ensure removal of files only includes items which are not in the new downloaded configuration
• Fixed duplication of list options
• Fixed a bug that caused /etc/config/openwisp to be overwritten

• ade89b2: made default hostname check case insensitive
• #26: added pre-reload-hook

• 57e431f: [makefile] added PKGARCH:=all in order to compile an architecture indipendent package
• 35067c8: [docs] default compile instructions to to LEDE 17.01

• 6bbbc75: adapted openwisp-remove-default-wifi script to work on LEDE 17.01

• 3e89fd6: [openwisp-reload-config] Removed local declarations
• 13bc735: [agent] Improved log messages
• 6955d5b: [reload-config] Reintroduced init.d check
• 7c4cb8b: [agent] Improved 2 more connection failure messages
• #25: [Makefile] Added openwisp-config-mbedtls
• [docs]: several documentation improvements regarding compilation and relation with other openwisp2 modules

• https://github.com/openwisp/openwisp-config/commit/5cdb8fa: [autoname] avoid failure if UCI files are empty
• https://github.com/openwisp/openwisp-config/pull/24: added mac_interface option, defaults to eth0 (thanks to @agabellini)
• https://github.com/openwisp/openwisp-config/commit/b09a497: [registration] send mac_address parameter to openwisp2 controller
• https://github.com/openwisp/openwisp-config/commit/e8f0b35: [reload-config] log which services have been reloaded

• #16: added "Unmanaged Configurations" feature (replaced merge_default)
• #19: added smarter configuration merge mechanism
• #20: improved default test
• #21: introduced automatic naming of anonymous uci sections
• daff21f: added "Consistent key generation" feature
• d6294ce: added capath argument and configuration option
• 93639af: added connect_timeout and max_time options for curl
• 9ef6f93: added support for LEDE
• e122e40: fixed bug in autoregistration when hostname is empty
• bd8ad3b: improved build options (ssl, category, maintainer)

• bd64be8: fixed infinite registration bug introduced in #14
• e8ae900: use current hostname in registration unless hostname is OpenWrt