K 10
svn:author
V 7
rwatson
K 8
svn:date
V 27
2004-12-25T22:32:44.000000Z
K 7
svn:log
V 887
Merge tcp_subr.c:1.210 from HEAD to RELENG_5:

  date: 2004/11/23 16:23:13;  author: rwatson;  state: Exp;  lines: +10 -0
  Assert the inpcb lock in tcp_twstart(), which does both read-modify-write
  on the tcpcb, but also calls into tcp_close() and tcp_twrespond().

  Annotate that tcp_twrecycleable() requires the inpcb lock because it does
  a series of non-atomic reads of the tcpcb, but is currently called
  without the inpcb lock by the caller.  This is a bug.

  Assert the inpcb lock in tcp_twclose() as it performs a read-modify-write
  of the timewait structure/inpcb, and calls in_pcbdetach() which requires
  the lock.

  Assert the inpcb lock in tcp_twrespond(), as it performs multiple
  non-atomic reads of the tcptw and inpcb structures, as well as calling
  mac_create_mbuf_from_inpcb(), tcpip_fillheaders(), which require the
  inpcb lock.

  MFC after:      2 weeks

END