patch #10345: Implement IPv6 socket options #22
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Implements the IPV6_UNICAST_HOPS socket option, which sets the hop limit for outgoing unicast IPv6 packets. Based on work from https://savannah.nongnu.org/patch/?9554 Co-authored-by: Christina Schoenrogge <[email protected]> Co-authored-by: Chee Bin Hoh <[email protected]> Co-authored-by: hanhui <[email protected]>
Implements the IPV6_MULTICAST_IF socket option, which specifies the interface for outgoing multicast packets. Based on work from https://savannah.nongnu.org/patch/?9554 Co-authored-by: Christina Schoenrogge <[email protected]> Co-authored-by: Chee Bin Hoh <[email protected]> Co-authored-by: hanhui <[email protected]>
Changes two IPv4 multicast socket options to use the LWIP_SOCKOPT_CHECK_OPTLEN_CONN_PCB_TYPE macro.
Implements the IPV6_MULTICAST_HOPS socket option, which sets the hop limit for outgoing multicast packets. Also fixes debug message in getsockopt for IP_MULTICAST_TTL. Based on work from https://savannah.nongnu.org/patch/?9554 Co-authored-by: Christina Schoenrogge <[email protected]> Co-authored-by: Chee Bin Hoh <[email protected]> Co-authored-by: hanhui <[email protected]>
Changes getsockopt handling for IP_MULTICAST_LOOP to test for UDP and use macro. Also fixes debug message.
Implements the IPV6_MULTICAST_LOOP socket option, which controls if a copy of the packet is looped back for local delivery.
Changes setsockopt handling of IP_PKTINFO to use the provided macros.
Implements the IPV6_RECVPKTINFO socket option for receiving ancillary data about an IPv6 packet. Also fixes an issue where the interface index was not being copied and updates IP_PKTINFO flag to use netconn flags macros. Based on work from https://savannah.nongnu.org/patch/?9554 Co-authored-by: Christina Schoenrogge <[email protected]> Co-authored-by: Joseph Huang <[email protected]> Co-authored-by: Chee Bin Hoh <[email protected]> Co-authored-by: hanhui <[email protected]>
RFC5952 section 4.3 requires text representations of IPv6 addresses to use lower case. Co-authored-by: Chee Bin Hoh <[email protected]>
Implements the IPV6_RECVHOPLIMIT socket option for receiving the hop limit in the IPv6 packet. Based on work from https://savannah.nongnu.org/patch/?9554 Co-authored-by: Christina Schoenrogge <[email protected]> Co-authored-by: hanhui <[email protected]>
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This series of patches implements the following IPv6 socket options:
IPV6_UNICAST_HOPSIPV6_MULTICAST_IFIPV6_MULTICAST_HOPSIPV6_MULTICAST_LOOPIPV6_RECVPKTINFOIPV6_RECVHOPLIMITCertain other improvements are made along the way.
Note that some of these patches are based on the work in patch #9554, but reduced to bite-sized pieces.
In skimming through some other open patches it looks like some of this work may be similar to: