cvs commit: src/sys/netinet ip_fw_pfil.c

[Gleb Smirnoff]

glebius     2005-04-08 12:38:00 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_5_4)
    sys/netinet          ip_fw_pfil.c 
  Log:
  MFC 1.18:
     When a packet has been reinjected into ipfw(4) after dummynet(4) processing
     we have a non-NULL args.rule. If the same packet later is subject to "tee"
     rule, its original is sent again into ipfw_chk() and it reenters at the same
     rule. This leads to infinite loop and frozen router.
  
     Assign args.rule to NULL, any time we are going to send packet back to
     ipfw_chk() after a tee rule. This is a temporary workaround, which we
     will leave for RELENG_5. In HEAD we are going to make divert(4) save
     next rule the same way as dummynet(4) does.
  
     PR:             kern/79546
     Submitted by:   Oleg Bulyzhin
     Reviewed by:    maxim, andre
  
  Approved by:    re (kensmith)
  
  Revision     Changes    Path
  1.1.2.8.2.1  +6 -2      src/sys/netinet/ip_fw_pfil.c