net: Cherry-pick DHCP/DNS improvements #3062
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Allow user to specify which network interfaces to bind the server to when reconfiguring the DNS system. Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no> (cherry picked from commit 2af5dba) Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
Bind the network interface to the network interface we have received the DNS servers from. This is now the default. The previous behavior can be restored by disabling the CONFIG_NET_DHCPV4_DNS_SERVER_VIA_INTERFACE option. Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no> (cherry picked from commit 1224c5a) Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
Bind the network interface to the network interface we have received the DNS servers from. This is now the default. The previous behavior can be restored by disabling the CONFIG_NET_DHCPV6_DNS_SERVER_VIA_INTERFACE option. Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no> (cherry picked from commit 248cb3d) Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
…erface Make sure we cleanup only those DNS servers that belong to certain network interface when the interface goes down. Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no> (cherry picked from commit cb90524) Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
Make sure that uninitialized state is 0 so that we can catch when the context is not initialized properly. Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no> (cherry picked from commit 514cdd6) Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
…ectly The "net conn" command printed AF_PACKET socket as AF_UNK(3). Fix this by printing "AF_PACKET" in this case. Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no> (cherry picked from commit 57c452f) Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
Make sure received DNS server information is bound to the wifi network interface. Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no> (cherry picked from commit 0e57844) Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
Make sure received DNS server information is bound to the ppp network interface. Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no> (cherry picked from commit 8704b3a) Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
…servers Remember which DNS server was added by a source like DHCPv4 or v6 message. This will allow system to remove DNS servers that were added by that source. Then when stopping for example DHCP, we can remove those specific DNS servers and not leaving DNS servers hanging in the system. Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no> (cherry picked from commit cdc6c32) Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
Make sure that we remove only the added DNS servers when the DHCP is stopped. Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no> (cherry picked from commit 2508420) Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
Print information which DNS servers were added by DHCP when listing DNS servers in "net dns" command. This helps debugging DNS server issues. Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no> (cherry picked from commit f1a9ff9) Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
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A set of commits improving handling of DNS addresses assigned via DHCP in multi-interface environment.