Hi, Ted recently removed the backwards compat for RFC2292 options, here's a small nit about documentation: IPV6_PKTOPTIONS is deprecated by RFC3542, and it doesn't appear anymore in /usr/src, except in this manpage.
ok? Index: share/man/man4/ip6.4 =================================================================== RCS file: /cvs/src/share/man/man4/ip6.4,v retrieving revision 1.34 diff -u -p -r1.34 ip6.4 --- share/man/man4/ip6.4 25 Oct 2015 14:43:07 -0000 1.34 +++ share/man/man4/ip6.4 2 Nov 2015 19:29:27 -0000 @@ -331,35 +331,6 @@ routine and family of routines may be us This option requires superuser privileges. Turning this option on will result in this socket getting cmsg data of type IPV6_RTHDR. -.It Dv IPV6_PKTOPTIONS Fa "struct cmsghdr *" -Get or set all header options and extension headers at one time on the -last packet sent or received on the socket. -All options must fit within the size of an mbuf (see -.Xr mbuf 9 ) . -Options are specified as a series of -.Vt cmsghdr -structures followed by corresponding values. -.Va cmsg_level -is set to -.Dv IPPROTO_IPV6 , -.Va cmsg_type -to one of the other values in this list, and trailing data to the option -value. -When setting options, if the length -.Va optlen -to -.Xr setsockopt 2 -is zero, all header options will be reset to their default values. -Otherwise, the length should specify the size the series of control -messages consumes. -.Pp -Instead of using -.Xr sendmsg 2 -to specify option values, the ancillary data used in these calls that -correspond to the desired header options may be directly specified as -the control message in the series of control messages provided as the -argument to -.Xr setsockopt 2 . .It Dv IPV6_CHECKSUM Fa "int *" Get or set the byte offset into a packet where the 16-bit checksum is located. @@ -461,15 +432,10 @@ This implementation determines the value options specified by using ancillary data (i.e., .Xr sendmsg 2 ) are considered first, -options specified by using -.Dv IPV6_PKTOPTIONS -to set -.Dq sticky -options are considered second, options specified by using the individual, basic, and direct socket options (e.g., .Dv IPV6_UNICAST_HOPS ) -are considered third, +are considered second, and options specified in the socket address supplied to .Xr sendto 2 are the last choice. -- jca | PGP : 0x1524E7EE / 5135 92C1 AD36 5293 2BDF DDCC 0DFA 74AE 1524 E7EE
