linux/include
Yang Hongyang b24a2516d1 ipv6: Add IPV6_PKTINFO sticky option support to setsockopt()
There are three reasons for me to add this support:
1.When no interface is specified in an IPV6_PKTINFO ancillary data
  item, the interface specified in an IPV6_PKTINFO sticky optionis 
  is used.

RFC3542:
6.7.  Summary of Outgoing Interface Selection

   This document and [RFC-3493] specify various methods that affect the
   selection of the packet's outgoing interface.  This subsection
   summarizes the ordering among those in order to ensure deterministic
   behavior.

   For a given outgoing packet on a given socket, the outgoing interface
   is determined in the following order:

   1. if an interface is specified in an IPV6_PKTINFO ancillary data
      item, the interface is used.

   2. otherwise, if an interface is specified in an IPV6_PKTINFO sticky
      option, the interface is used.

2.When no IPV6_PKTINFO ancillary data is received,getsockopt() should 
  return the sticky option value which set with setsockopt().

RFC 3542:
   Issuing getsockopt() for the above options will return the sticky
   option value i.e., the value set with setsockopt().  If no sticky
   option value has been set getsockopt() will return the following
   values:

3.Make the setsockopt implementation POSIX compliant.

Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-16 02:06:23 -08:00
..
acpi ACPICA: disable _BIF warning 2008-11-27 02:17:30 -05:00
asm-arm
asm-frv
asm-generic atomic: fix a typo in atomic_long_xchg() 2008-12-10 08:01:53 -08:00
asm-h8300
asm-m32r
asm-m68k
asm-mn10300 MN10300: Fix __put_user_asm8() 2008-12-10 13:34:33 -08:00
asm-xtensa
crypto
drm drm: move drm vblank initialization/cleanup to driver load/unload 2008-11-25 09:49:03 +10:00
keys
linux ipv6: Add IPV6_PKTINFO sticky option support to setsockopt() 2008-12-16 02:06:23 -08:00
math-emu
media
mtd
net tcp: Add GRO support 2008-12-15 23:43:36 -08:00
pcmcia
rdma
rxrpc
scsi [SCSI] fc_transport: fix old bug on bitflag definitions 2008-11-21 17:30:53 +09:00
sound Merge branches 'topic/fix/misc' and 'topic/fix/hda' into for-linus 2008-11-10 17:58:46 +01:00
trace
video Revert "radeonfb: accelerate imageblit and other improvements" 2008-12-10 16:53:32 -08:00
xen
Kbuild