wireless: reconnect on unexpected wpa_supplicant restart (bsc#1183495) #892
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There might be ni_wireless_t object without successful applied configuration. Such objects are identified by `wlan->config == NULL`. For this reason, the ni_wireless_config_t object is now referenced by a pointer inside of ni_wireless_t.
Remember, if we have enabled all network(s) in wpa_supplicant. This is used to to re-trigger it, while recover after wpa_supplicant restarts.
If wpa_supplicant restarts unexpected, we need to configure wpa_supplicant again, as the previous configuration is lost.
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cleanup: warnings, time calculations and dhcp fixes (bsc#1188019) - Cleanup timer/timeout and lifetime types and calculations with very high or infinite lease time, which caused high cpu on RaspberryPi 2 (bsc#1188019) - dhcp6: fix incorrect retransmission time randomization (re-)calculations USGv6: DHCPv6_7_1_05c, DHCPv6_7_1_05c, DHCPv6_7_1_05c - fix warnings from more recent compilers
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When wpa_supplicant get restarted (e.g. in case of an update) the previous configuration is lost.
As we configure wpa_supplicant via DBus, there is no persistent state by default, thus we need to send the
configuration again, once wpa_supplicant is back on the DBus.
Bug: https://bugzilla.suse.com/show_bug.cgi?id=1183495