cvs commit: src/sys/amd64/amd64 bpf_jit_machdep.c bpf_jit_machdep.h src/sys/i386/i386 bpf_jit_machdep.c bpf_jit_machdep.h src/sys/net bpf_jitter.c bpf_jitter.h

[Jung-uk Kim]

jkim        2008-09-04 15:15:39 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_7)
    sys/amd64/amd64      bpf_jit_machdep.c bpf_jit_machdep.h 
    sys/i386/i386        bpf_jit_machdep.c bpf_jit_machdep.h 
    sys/net              bpf_jitter.c bpf_jitter.h 
  Log:
  SVN rev 182760 on 2008-09-04 15:15:39Z by jkim
  
  MFC: Sync. BPF JIT compiler with HEAD.
  
  - r182172:
  Embed scratch memory in the filter structure.
  
  - r182173:
  Fix a typo in copyrights.
  
  - r182220:
  Move empty filter handling to MI source.
  
  - r182376:
  Initialize scratch memory for JIT-compiled filter when it is allocated.
  Previously it may have contained unnecessary (even sensitive) data from
  the previous allocation.
  As a (good) side effect, scratch memory may be used to store the previous
  filter state(s) safely because it is allocated and freed with filter itself.
  However, use it carefully because bpf_filter(9) does not have this behavior.
  
  Approved by:    re (kensmith)
  
  Revision  Changes    Path
  1.4.2.2   +1 -5      src/sys/amd64/amd64/bpf_jit_machdep.c
  1.3.2.2   +1 -1      src/sys/amd64/amd64/bpf_jit_machdep.h
  1.4.2.2   +1 -5      src/sys/i386/i386/bpf_jit_machdep.c
  1.3.2.2   +1 -1      src/sys/i386/i386/bpf_jit_machdep.h
  1.3.2.2   +26 -19    src/sys/net/bpf_jitter.c
  1.2.2.2   +2 -2      src/sys/net/bpf_jitter.h