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Re: ip6(4) manpage update
On Sat, Jun 16, 2012 at 07:17:16PM -0700, Philip Guenther wrote: You can expect the same issue with IPV6_PKTINFO, IPV6_HOPOPTS, IPV6_DSTOPTS, and IPV6_RTHDR. The RECV part was added to them in RFC3542. Yep. In addition, the text should be clarified to indicate that turning on IPV6_RECV* will result in the process getting cmsg data of type IPV6_*. E.g., IPV6_RECVHOPLIMIT turns on receiving of IPV6_HOPLIMIT cmsg data. Peter, do you want to take a stab at that part too? (There's also a typo in the current page: s/HOPTLIMIT/HOPLIMIT/) Philip Guenther Sure I'll take a stab at it but its very difficult I found (I was also distracted by freeing a bird from the attic). Here goes: -peter Index: ip6.4 === RCS file: /cvs/src/share/man/man4/ip6.4,v retrieving revision 1.25 diff -u -r1.25 ip6.4 --- ip6.4 8 Sep 2011 16:43:56 - 1.25 +++ ip6.4 17 Jun 2012 10:45:19 - @@ -237,7 +237,7 @@ .It Dv IPV6_PORTRANGE_LOW Use a low, reserved range (600\-1023). .El -.It Dv IPV6_PKTINFO Fa int * +.It Dv IPV6_RECVPKTINFO Fa int * Get or set whether additional information about subsequent packets will be provided as ancillary data along with the payload in subsequent .Xr recvmsg 2 @@ -250,14 +250,19 @@ unsigned intipi6_ifindex; /* send/recv if index */ }; .Ed -.It Dv IPV6_HOPLIMIT Fa int * + +Turning this option on will result in this process getting cmsg data of +type IPV6_PKTINFO. +.It Dv IPV6_RECVHOPLIMIT Fa int * Get or set whether the hop limit header field from subsequent packets will be provided as ancillary data along with the payload in subsequent .Xr recvmsg 2 -calls. +calls. The value is stored as an .Vt int in the ancillary data returned. +Turning this option on will result in this process getting cmsg data of +type IPV6_HOPLIMIT. .\ .It Dv IPV6_NEXTHOP Fa int * .\ Get or set whether the address of the next hop for subsequent .\ packets will be provided as ancillary data along with the payload in @@ -269,7 +274,7 @@ .\ structure in the ancillary data returned. .\ .Pp .\ This option requires superuser privileges. -.It Dv IPV6_HOPOPTS Fa int * +.It Dv IPV6_RECVHOPOPTS Fa int * Get or set whether the hop-by-hop options from subsequent packets will be provided as ancillary data along with the payload in subsequent .Xr recvmsg 2 @@ -288,8 +293,10 @@ .Fn inet6_option_space routine and family of routines may be used to manipulate this data. .Pp -This option requires superuser privileges. -.It Dv IPV6_DSTOPTS Fa int * +This option requires superuser privileges. +Turning this option on will result in this process getting cmsg data of +type IPV6_HOPOPTS. +.It Dv IPV6_RECVDSTOPTS Fa int * Get or set whether the destination options from subsequent packets will be provided as ancillary data along with the payload in subsequent .Xr recvmsg 2 @@ -309,6 +316,8 @@ routine and family of routines may be used to manipulate this data. .Pp This option requires superuser privileges. +Turning this option on will result in this process getting cmsg data of +type IPV6_DSTOPTS. .It Dv IPV6_TCLASS Fa int * Get or set the value of the traffic class field used for outgoing datagrams on this socket. @@ -321,7 +330,7 @@ calls. The header field is stored as a single value of type .Vt int . -.It Dv IPV6_RTHDR Fa int * +.It Dv IPV6_RECVRTHDR Fa int * Get or set whether the routing header from subsequent packets will be provided as ancillary data along with the payload in subsequent .Xr recvmsg 2 @@ -343,6 +352,8 @@ routine and family of routines may be used to manipulate this data. .Pp This option requires superuser privileges. +Turning this option on will result in this process 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. @@ -413,11 +424,11 @@ .El .Pp The -.Dv IPV6_PKTINFO , -.\ .Dv IPV6_NEXTHOP , -.Dv IPV6_HOPLIMIT , -.Dv IPV6_HOPOPTS , -.Dv IPV6_DSTOPTS , +.Dv IPV6_RECVPKTINFO , +.\ .Dv IPV6_RECVNEXTHOP , +.Dv IPV6_RECVHOPLIMIT , +.Dv IPV6_RECVHOPOPTS , +.Dv IPV6_RECVDSTOPTS , and .Dv IPV6_RTHDR options will return ancillary data along with payload contents in subsequent @@ -429,7 +440,7 @@ and .Va cmsg_type set to respective option name value (e.g., -.Dv IPV6_HOPTLIMIT ) . +.Dv IPV6_HOPLIMIT ) . These options may also be used directly as ancillary .Va cmsg_type values in @@ -455,7 +466,7 @@ can be set by the .Dv IPV6_MULTICAST_IF socket option, through the -.Dv IPV6_PKTINFO +.Dv IPV6_RECVPKTINFO option, and through the .Va sin6_scope_id field of the socket address passed to the @@ -590,7 +601,7 @@ * returned along with the payload. */ optval = 1; -if (setsockopt(s, IPPROTO_IPV6, IPV6_HOPLIMIT, optval, +if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVHOPLIMIT, optval, sizeof(optval)) == -1) err(1,
Re: ip6(4) manpage update
On Sun, Jun 17, 2012 at 12:49:08PM +0200, Peter J. Philipp wrote: On Sat, Jun 16, 2012 at 07:17:16PM -0700, Philip Guenther wrote: You can expect the same issue with IPV6_PKTINFO, IPV6_HOPOPTS, IPV6_DSTOPTS, and IPV6_RTHDR. The RECV part was added to them in RFC3542. Yep. In addition, the text should be clarified to indicate that turning on IPV6_RECV* will result in the process getting cmsg data of type IPV6_*. E.g., IPV6_RECVHOPLIMIT turns on receiving of IPV6_HOPLIMIT cmsg data. Peter, do you want to take a stab at that part too? (There's also a typo in the current page: s/HOPTLIMIT/HOPLIMIT/) Philip Guenther Sure I'll take a stab at it but its very difficult I found (I was also distracted by freeing a bird from the attic). Here goes: attempt two.. process was the wrong word, I substituted it with socket. -peter Index: ip6.4 === RCS file: /cvs/src/share/man/man4/ip6.4,v retrieving revision 1.25 diff -u -r1.25 ip6.4 --- ip6.4 8 Sep 2011 16:43:56 - 1.25 +++ ip6.4 17 Jun 2012 10:45:19 - @@ -237,7 +237,7 @@ .It Dv IPV6_PORTRANGE_LOW Use a low, reserved range (600\-1023). .El -.It Dv IPV6_PKTINFO Fa int * +.It Dv IPV6_RECVPKTINFO Fa int * Get or set whether additional information about subsequent packets will be provided as ancillary data along with the payload in subsequent .Xr recvmsg 2 @@ -250,14 +250,19 @@ unsigned intipi6_ifindex; /* send/recv if index */ }; .Ed -.It Dv IPV6_HOPLIMIT Fa int * + +Turning this option on will result in this socket getting cmsg data of +type IPV6_PKTINFO. +.It Dv IPV6_RECVHOPLIMIT Fa int * Get or set whether the hop limit header field from subsequent packets will be provided as ancillary data along with the payload in subsequent .Xr recvmsg 2 -calls. +calls. The value is stored as an .Vt int in the ancillary data returned. +Turning this option on will result in this socket getting cmsg data of +type IPV6_HOPLIMIT. .\ .It Dv IPV6_NEXTHOP Fa int * .\ Get or set whether the address of the next hop for subsequent .\ packets will be provided as ancillary data along with the payload in @@ -269,7 +274,7 @@ .\ structure in the ancillary data returned. .\ .Pp .\ This option requires superuser privileges. -.It Dv IPV6_HOPOPTS Fa int * +.It Dv IPV6_RECVHOPOPTS Fa int * Get or set whether the hop-by-hop options from subsequent packets will be provided as ancillary data along with the payload in subsequent .Xr recvmsg 2 @@ -288,8 +293,10 @@ .Fn inet6_option_space routine and family of routines may be used to manipulate this data. .Pp -This option requires superuser privileges. -.It Dv IPV6_DSTOPTS Fa int * +This option requires superuser privileges. +Turning this option on will result in this socket getting cmsg data of +type IPV6_HOPOPTS. +.It Dv IPV6_RECVDSTOPTS Fa int * Get or set whether the destination options from subsequent packets will be provided as ancillary data along with the payload in subsequent .Xr recvmsg 2 @@ -309,6 +316,8 @@ routine and family of routines may be used to manipulate this data. .Pp This option requires superuser privileges. +Turning this option on will result in this socket getting cmsg data of +type IPV6_DSTOPTS. .It Dv IPV6_TCLASS Fa int * Get or set the value of the traffic class field used for outgoing datagrams on this socket. @@ -321,7 +330,7 @@ calls. The header field is stored as a single value of type .Vt int . -.It Dv IPV6_RTHDR Fa int * +.It Dv IPV6_RECVRTHDR Fa int * Get or set whether the routing header from subsequent packets will be provided as ancillary data along with the payload in subsequent .Xr recvmsg 2 @@ -343,6 +352,8 @@ routine and family of routines may be used to manipulate this data. .Pp 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. @@ -413,11 +424,11 @@ .El .Pp The -.Dv IPV6_PKTINFO , -.\ .Dv IPV6_NEXTHOP , -.Dv IPV6_HOPLIMIT , -.Dv IPV6_HOPOPTS , -.Dv IPV6_DSTOPTS , +.Dv IPV6_RECVPKTINFO , +.\ .Dv IPV6_RECVNEXTHOP , +.Dv IPV6_RECVHOPLIMIT , +.Dv IPV6_RECVHOPOPTS , +.Dv IPV6_RECVDSTOPTS , and .Dv IPV6_RTHDR options will return ancillary data along with payload contents in subsequent @@ -429,7 +440,7 @@ and .Va cmsg_type set to respective option name value (e.g., -.Dv IPV6_HOPTLIMIT ) . +.Dv IPV6_HOPLIMIT ) . These options may also be used directly as ancillary .Va cmsg_type values in @@ -455,7 +466,7 @@ can be set by the .Dv IPV6_MULTICAST_IF socket option, through the -.Dv IPV6_PKTINFO +.Dv IPV6_RECVPKTINFO option, and through the .Va sin6_scope_id field of the socket address passed to the @@ -590,7 +601,7 @@ * returned along with the payload. */ optval = 1; -if
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Re: vmyield diff (2) please test
On Thu, 14 Jun 2012 03:48:12 +0200 Ariane van der Steldt ari...@stack.nl wrote: Hi, This diff implements yielding in the vm system, with the intention to make expensive system calls preempt every once in a while, to allow userland system calls to progress. The diff has a name ofcourse: vmyield.2.diff Please test this on your machines. -- Ariane Hi Ariane and tech@, Using this since Thursday on both amd64 and i386 current, rebuilt systems, have not noticed any issues. Brett.
