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Diff for /embedaddon/quagga/zebra/kernel_socket.c between versions 1.1.1.2 and 1.1.1.3

version 1.1.1.2, 2012/10/09 09:22:29 version 1.1.1.3, 2013/07/21 23:54:41
Line 48  extern struct zebra_t zebrad; Line 48  extern struct zebra_t zebrad;
  * XXX: why is ROUNDUP(0) sizeof(long)?  0 is an illegal sockaddr   * XXX: why is ROUNDUP(0) sizeof(long)?  0 is an illegal sockaddr
  * length anyway (< sizeof (struct sockaddr)), so this shouldn't   * length anyway (< sizeof (struct sockaddr)), so this shouldn't
  * matter.   * matter.
    * On OS X, both 32, 64bit syatems align on 4 byte boundary
  */   */
   #ifdef __APPLE__
 #define ROUNDUP(a) \  #define ROUNDUP(a) \
     ((a) > 0 ? (1 + (((a) - 1) | (sizeof(int) - 1))) : sizeof(int))
   #else
   #define ROUNDUP(a) \
   ((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long))    ((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long))
   #endif
   
 /*  /*
  * Given a pointer (sockaddr or void *), return the number of bytes   * Given a pointer (sockaddr or void *), return the number of bytes
Line 78  extern struct zebra_t zebrad; Line 84  extern struct zebra_t zebrad;
            ROUNDUP(sizeof(struct sockaddr_dl)) : sizeof(struct sockaddr)))             ROUNDUP(sizeof(struct sockaddr_dl)) : sizeof(struct sockaddr)))
 #endif /* HAVE_STRUCT_SOCKADDR_SA_LEN */  #endif /* HAVE_STRUCT_SOCKADDR_SA_LEN */
   
/* We use an additional pointer in following, pdest, rather than (DEST)/*
 * directly, because gcc will warn if the macro is expanded and DEST is NULL, * We use a call to an inline function to copy (PNT) to (DEST)
 * complaining that memcpy is being passed a NULL value, despite the fact * 1. Calculating the length of the copy requires an #ifdef to determine
 * the if (NULL) makes it impossible. *    if sa_len is a field and can't be used directly inside a #define
  * 2. So the compiler doesn't complain when DEST is NULL, which is only true
  *    when we are skipping the copy and incrementing to the next SA
  */   */
   static void inline
   rta_copy (union sockunion *dest, caddr_t src) {
     int len;
   #ifdef HAVE_STRUCT_SOCKADDR_SA_LEN
     len = (((struct sockaddr *)src)->sa_len > sizeof (*dest)) ?
               sizeof (*dest) : ((struct sockaddr *)src)->sa_len ;
   #else
     len = (SAROUNDUP (src) > sizeof (*dest)) ?
               sizeof (*dest) : SAROUNDUP (src) ;
   #endif
     memcpy (dest, src, len);
   }
   
 #define RTA_ADDR_GET(DEST, RTA, RTMADDRS, PNT) \  #define RTA_ADDR_GET(DEST, RTA, RTMADDRS, PNT) \
   if ((RTMADDRS) & (RTA)) \    if ((RTMADDRS) & (RTA)) \
     { \      { \
       void *pdest = (DEST); \  
       int len = SAROUNDUP ((PNT)); \        int len = SAROUNDUP ((PNT)); \
       if ( ((DEST) != NULL) && \        if ( ((DEST) != NULL) && \
            af_check (((struct sockaddr *)(PNT))->sa_family)) \             af_check (((struct sockaddr *)(PNT))->sa_family)) \
        memcpy (pdest, (PNT), len); \        rta_copy((DEST), (PNT)); \
       (PNT) += len; \        (PNT) += len; \
     }      }
 #define RTA_ATTR_GET(DEST, RTA, RTMADDRS, PNT) \  #define RTA_ATTR_GET(DEST, RTA, RTMADDRS, PNT) \
   if ((RTMADDRS) & (RTA)) \    if ((RTMADDRS) & (RTA)) \
     { \      { \
       void *pdest = (DEST); \  
       int len = SAROUNDUP ((PNT)); \        int len = SAROUNDUP ((PNT)); \
       if ((DEST) != NULL) \        if ((DEST) != NULL) \
        memcpy (pdest, (PNT), len); \        rta_copy((DEST), (PNT)); \
       (PNT) += len; \        (PNT) += len; \
     }      }
   
Line 297  ifan_read (struct if_announcemsghdr *ifan) Line 316  ifan_read (struct if_announcemsghdr *ifan)
 }  }
 #endif /* RTM_IFANNOUNCE */  #endif /* RTM_IFANNOUNCE */
   
#ifdef HAVE_BSD_LINK_DETECT#ifdef HAVE_BSD_IFI_LINK_STATE
 /* BSD link detect translation */  /* BSD link detect translation */
 static void  static void
 bsd_linkdetect_translate (struct if_msghdr *ifm)  bsd_linkdetect_translate (struct if_msghdr *ifm)
Line 308  bsd_linkdetect_translate (struct if_msghdr *ifm) Line 327  bsd_linkdetect_translate (struct if_msghdr *ifm)
   else    else
     UNSET_FLAG(ifm->ifm_flags, IFF_RUNNING);      UNSET_FLAG(ifm->ifm_flags, IFF_RUNNING);
 }  }
#endif /* HAVE_BSD_LINK_DETECT */#endif /* HAVE_BSD_IFI_LINK_STATE */
   
 /*  /*
  * Handle struct if_msghdr obtained from reading routing socket or   * Handle struct if_msghdr obtained from reading routing socket or
Line 322  ifm_read (struct if_msghdr *ifm) Line 341  ifm_read (struct if_msghdr *ifm)
   struct sockaddr_dl *sdl;    struct sockaddr_dl *sdl;
   char ifname[IFNAMSIZ];    char ifname[IFNAMSIZ];
   short ifnlen = 0;    short ifnlen = 0;
  caddr_t *cp;  caddr_t cp;
       
   /* terminate ifname at head (for strnlen) and tail (for safety) */    /* terminate ifname at head (for strnlen) and tail (for safety) */
   ifname[IFNAMSIZ - 1] = '\0';    ifname[IFNAMSIZ - 1] = '\0';
Line 444  ifm_read (struct if_msghdr *ifm) Line 463  ifm_read (struct if_msghdr *ifm)
        */         */
       ifp->ifindex = ifm->ifm_index;        ifp->ifindex = ifm->ifm_index;
               
#ifdef HAVE_BSD_LINK_DETECT /* translate BSD kernel msg for link-state */#ifdef HAVE_BSD_IFI_LINK_STATE /* translate BSD kernel msg for link-state */
       bsd_linkdetect_translate(ifm);        bsd_linkdetect_translate(ifm);
#endif /* HAVE_BSD_LINK_DETECT */#endif /* HAVE_BSD_IFI_LINK_STATE */
   
       if_flags_update (ifp, ifm->ifm_flags);        if_flags_update (ifp, ifm->ifm_flags);
 #if defined(__bsdi__)  #if defined(__bsdi__)
Line 458  ifm_read (struct if_msghdr *ifm) Line 477  ifm_read (struct if_msghdr *ifm)
   
       /*        /*
        * XXX sockaddr_dl contents can be larger than the structure         * XXX sockaddr_dl contents can be larger than the structure
       * definition, so the user of the stored structure must be       * definition.  There are 2 big families here:
       * careful not to read off the end.       *  - BSD has sdl_len + sdl_data[16] + overruns sdl_data
       *       *    we MUST use sdl_len here or we'll truncate data.
        *  - Solaris has no sdl_len, but sdl_data[244]
        *    presumably, it's not going to run past that, so sizeof()
        *    is fine here.
        * a nonzero ifnlen from RTA_NAME_GET() means sdl is valid         * a nonzero ifnlen from RTA_NAME_GET() means sdl is valid
        */         */
       if (ifnlen)        if (ifnlen)
         {
   #ifdef HAVE_STRUCT_SOCKADDR_DL_SDL_LEN
           memcpy (&ifp->sdl, sdl, sdl->sdl_len);
   #else
         memcpy (&ifp->sdl, sdl, sizeof (struct sockaddr_dl));          memcpy (&ifp->sdl, sdl, sizeof (struct sockaddr_dl));
   #endif /* HAVE_STRUCT_SOCKADDR_DL_SDL_LEN */
         }
   
       if_add_update (ifp);        if_add_update (ifp);
     }      }
Line 485  ifm_read (struct if_msghdr *ifm) Line 513  ifm_read (struct if_msghdr *ifm)
           return -1;            return -1;
         }          }
               
#ifdef HAVE_BSD_LINK_DETECT /* translate BSD kernel msg for link-state */#ifdef HAVE_BSD_IFI_LINK_STATE /* translate BSD kernel msg for link-state */
       bsd_linkdetect_translate(ifm);        bsd_linkdetect_translate(ifm);
#endif /* HAVE_BSD_LINK_DETECT */#endif /* HAVE_BSD_IFI_LINK_STATE */
   
       /* update flags and handle operative->inoperative transition, if any */        /* update flags and handle operative->inoperative transition, if any */
       if_flags_update (ifp, ifm->ifm_flags);        if_flags_update (ifp, ifm->ifm_flags);
Removed from v.1.1.1.2  
changed lines
  Added in v.1.1.1.3

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