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Explicitly enable IPV6_V6ONLY on the netmgr sockets

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Some operating systems (OpenBSD and DragonFly BSD) don't restrict the
IPv6 sockets to sending and receiving IPv6 packets only.  Explicitly
enable the IPV6_V6ONLY socket option on the IPv6 sockets to prevent
failures from using the IPv4-mapped IPv6 address.
This commit is contained in:
Ondřej Surý
2022-01-13 13:24:55 +01:00
parent 55a0d0880a
commit b5e086257d
7 changed files with 29 additions and 6 deletions
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6
lib/isc/netmgr/netmgr-int.h
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@@ -1849,6 +1849,12 @@ isc__nm_socket_disable_pmtud(uv_os_sock_t fd, sa_family_t sa_family);
* option, or setting the IP(V6)_MTU_DISCOVER socket option to IP_PMTUDISC_OMIT
*/
isc_result_t
isc__nm_socket_v6only(uv_os_sock_t fd, sa_family_t sa_family);
/*%<
* Restrict the socket to sending and receiving IPv6 packets only
*/
isc_result_t
isc__nm_socket_connectiontimeout(uv_os_sock_t fd, int timeout_ms);
/*%<