ru.unix.bsd

 
 - RU.UNIX.BSD ------------------------------------------------------------------
 From : Eugene Grosbein                      2:5006/1       27 Nov 2003  15:10:29
 To : All
 Subject : IFF_STATICARP
 -------------------------------------------------------------------------------- 
 

 
 Тем, кто использует статические таблицы ARP в работе и знает,
 почему IFF_NOARP (ifconfig -arp) не хватает и зачем нужен
 патч для net.link.ether.inet.strict_noarp=1.
 
 В CURRENT уже пару месяцев есть IFF_STATICARP, которые реализует
 то же самое, но более гибко, позволяя сказать ifconfig staticarp
 вместо ifconfig -arp. Сейчас готовится MFC для 4.9. Просьба потестировать
 этот патч, оно будет в 4-STABLE. Если строчки завернутся, плиз разверните
 сами.
 
 Index: src/sbin/ifconfig/ifconfig.8
 ===================================================================
 RCS file: /home/ncvs/src/sbin/ifconfig/ifconfig.8,v
 retrieving revision 1.27.2.22
 diff -u -r1.27.2.22 ifconfig.8
 - --- src/sbin/ifconfig/ifconfig.8 26 Jan 2003 03:33:56 -0000  1.27.2.22
 +++ src/sbin/ifconfig/ifconfig.8  26 Nov 2003 22:23:42 -0000
 @@ -227,6 +227,14 @@
  .It Fl arp
  Disable the use of the Address Resolution Protocol
  .Pq Xr arp 4 .
 +.It Cm staticarp
 +If the Address Resolution Protocol is enabled,
 +the host will only reply to requests for its addresses,
 +and will never send any requests.
 +.It Fl staticarp
 +If the Address Resolution Protocol is enabled,
 +the host will perform normally,
 +sending out requests and listening for replies.
  .It Cm broadcast
  (Inet only.)
  Specify the address to use to represent broadcasts to the
 Index: src/sbin/ifconfig/ifconfig.c
 ===================================================================
 RCS file: /home/ncvs/src/sbin/ifconfig/ifconfig.c,v
 retrieving revision 1.51.2.19
 diff -u -r1.51.2.19 ifconfig.c
 - --- src/sbin/ifconfig/ifconfig.c 28 Jan 2003 11:02:56 -0000  1.51.2.19
 +++ src/sbin/ifconfig/ifconfig.c  26 Nov 2003 22:23:42 -0000
 @@ -241,6 +241,8 @@
    { "-link1", -IFF_LINK1, setifflags },
    { "link2",  IFF_LINK2,  setifflags },
    { "-link2", -IFF_LINK2, setifflags },
 +  { "staticarp",  IFF_STATICARP,  setifflags },
 +  { "-staticarp", -IFF_STATICARP, setifflags },
  #ifdef USE_IF_MEDIA
    { "media",  NEXTARG,   setmedia },
    { "mediaopt",  NEXTARG, setmediaopt },
 @@ -1135,7 +1137,7 @@
  #define  IFFBITS \
  "\020\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5POINTOPOINT\6SMART\7RUNNING" \
  "\10NOARP\11PROMISC\12ALLMULTI\13OACTIVE\14SIMPLEX\15LINK0\16LINK1\17LINK2" \
 -"\20MULTICAST"
 +"\20MULTICAST\024STATICARP"
  
  #define  IFCAPBITS \
  "\003\1rxcsum\2txcsum\3netcons"
 Index: src/sys/net/if.h
 ===================================================================
 RCS file: /home/ncvs/src/sys/net/if.h,v
 retrieving revision 1.58.2.9
 diff -u -r1.58.2.9 if.h
 - --- src/sys/net/if.h 30 Aug 2002 14:23:38 -0000  1.58.2.9
 +++ src/sys/net/if.h  26 Nov 2003 22:23:42 -0000
 @@ -134,6 +134,7 @@
  #define  IFF_LINK2   0x4000   /* per link layer defined bit */
  #define  IFF_ALTPHYS  IFF_LINK2  /* use alternate physical connection */
  #define  IFF_MULTICAST   0x8000   /* supports multicast */
 +#define  IFF_STATICARP   0x80000     /* static ARP */
  
  /*
   * The following flag(s) ought to go in if_flags, but we cannot change
 Index: src/sys/netinet/if_ether.c
 ===================================================================
 RCS file: /home/ncvs/src/sys/netinet/if_ether.c,v
 retrieving revision 1.64.2.26
 diff -u -r1.64.2.26 if_ether.c
 - --- src/sys/netinet/if_ether.c  24 Sep 2003 21:48:00 -0000  1.64.2.26
 +++ src/sys/netinet/if_ether.c 26 Nov 2003 22:23:42 -0000
 @@ -450,12 +450,12 @@
       return 1;
    }
    /*
 -   * If ARP is disabled on this interface, stop.
 +   * If ARP is disabled or static on this interface, stop.
     * XXX
     * Probably should not allocate empty llinfo struct if we are
     * not going to be sending out an arp request.
     */
 -  if (ifp->if_flags & IFF_NOARP) {
 +  if (ifp->if_flags & (IFF_NOARP | IFF_STATICARP)) {
       m_freem(m);
       return (0);
    }
 @@ -655,6 +655,8 @@
       itaddr = myaddr;
       goto reply;
    }
 +  if (ifp->if_flags & IFF_STATICARP)
 +     goto reply;
    la = arplookup(isaddr.s_addr, itaddr.s_addr == myaddr.s_addr, 0);
    if (la && (rt = la->la_rt) && (sdl = SDL(rt->rt_gateway))) {
       /* the following is not an error when doing bridging */
 Eugene
 -- 
 "Люди забыли эту истину," - сказал Лис, - "но ты не забывай"
 --- slrn/0.9.7.4 (FreeBSD)
  * Origin: Svyaz Service JSC (2:5006/1@fidonet)
 
 

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Тема:    Автор:    Дата:    IFF_STATICARP   Eugene Grosbein   27 Nov 2003 15:10:29   Re: IFF_STATICARP   Eugene Grosbein   27 Nov 2003 16:19:18