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2005-11-03 Paul Jakma <paul.jakma@sun.com>

	* connected.{c,h}: Include memory.h
	  (connected_add_ipv4) Use MTYPE for ifc label.
	  (connected_add_ipv6) Also should accept label. Store it in ifp.
	  (connected_del_ipv4) Taking label as argument is pointless.
	* rt_netlink.c: (netlink_interface_addr) update label usage
	  for connected_{add,delete} functions.
	* if_ioctl.c: (if_getaddrs) NULL label for connected_add_ipv6.
	* if_ioctl_solaris.c: (interface_list_ioctl) Pass LIFC_NOXMIT
	  so we also find out about NOXMIT interfaces like VNI.
	  Bit of hackery to turn interface names into the primary
	  interface name, later with routing socket messages we only
	  will about primary interfaces anyway, so we must normalise
	  the name.
	  (if_get_addr) take label as argument, so it can
	  be passed to connected_add.
	  If label is provided, then it is interface name to issue the
	  ioctl for address information on, not the ifp name.
	  (interface_list) List AF_UNSPEC too, just in case.
	* if_proc.c: (ifaddr_proc_ipv6) label for connected_add_ipv6.
	* interface.c: (if_addr_wakeup) Some very bogus code - sets
	  IFF_RUNNING - add comment.
	  (if_refresh)
	  (ip_address_install) Use MTYPE for ifc label.
	* ioctl_solaris.c: (if_mangle_up) New function. Hackery to make
	  IFF_UP reflect whether any addresses are left on the
	  interface, as we get signalled for IFF_UP flags change on the
	  primary interface only. Logical interfaces dont generate
	  IFINFO, but we do get an RTM_DELADDR.
	  (if_get_flags) Call if_mangle_up before return.
	* kernel_socket.c: (ifam_read) Fixup calls to
	  connected_{add,delete} to match above changes. Rename gate
	  variable to brd, less confusing.
	  Pass the interface name as a label, if it is not same name
	  as ifp->name.
paul 15 years ago
parent
commit
0752ef0b2e
10 changed files with 149 additions and 43 deletions
  1. 37 0
      zebra/ChangeLog
  2. 8 4
      zebra/connected.c
  3. 2 3
      zebra/connected.h
  4. 2 1
      zebra/if_ioctl.c
  5. 38 12
      zebra/if_ioctl_solaris.c
  6. 1 1
      zebra/if_proc.c
  7. 13 2
      zebra/interface.c
  8. 38 12
      zebra/ioctl_solaris.c
  9. 8 6
      zebra/kernel_socket.c
  10. 2 2
      zebra/rt_netlink.c

+ 37 - 0
zebra/ChangeLog

@@ -1,3 +1,40 @@
+2005-11-03 Paul Jakma <paul.jakma@sun.com>
+
+	* connected.{c,h}: Include memory.h
+	  (connected_add_ipv4) Use MTYPE for ifc label.
+	  (connected_add_ipv6) Also should accept label. Store it in ifp.
+	  (connected_del_ipv4) Taking label as argument is pointless.
+	* rt_netlink.c: (netlink_interface_addr) update label usage
+	  for connected_{add,delete} functions.
+	* if_ioctl.c: (if_getaddrs) NULL label for connected_add_ipv6.
+	* if_ioctl_solaris.c: (interface_list_ioctl) Pass LIFC_NOXMIT
+	  so we also find out about NOXMIT interfaces like VNI.
+	  Bit of hackery to turn interface names into the primary
+	  interface name, later with routing socket messages we only
+	  will about primary interfaces anyway, so we must normalise
+	  the name.
+	  (if_get_addr) take label as argument, so it can
+	  be passed to connected_add.
+	  If label is provided, then it is interface name to issue the
+	  ioctl for address information on, not the ifp name.
+	  (interface_list) List AF_UNSPEC too, just in case.
+	* if_proc.c: (ifaddr_proc_ipv6) label for connected_add_ipv6.
+	* interface.c: (if_addr_wakeup) Some very bogus code - sets
+	  IFF_RUNNING - add comment.
+	  (if_refresh)
+	  (ip_address_install) Use MTYPE for ifc label.
+	* ioctl_solaris.c: (if_mangle_up) New function. Hackery to make
+	  IFF_UP reflect whether any addresses are left on the
+	  interface, as we get signalled for IFF_UP flags change on the 
+	  primary interface only. Logical interfaces dont generate
+	  IFINFO, but we do get an RTM_DELADDR.
+	  (if_get_flags) Call if_mangle_up before return.
+	* kernel_socket.c: (ifam_read) Fixup calls to
+	  connected_{add,delete} to match above changes. Rename gate
+	  variable to brd, less confusing.
+	  Pass the interface name as a label, if it is not same name 
+	  as ifp->name.
+
 2005-10-11 Paul Jakma <paul.jakma@sun.com>
 
 	* connected.{c,h}: (connected_{add,delete}_ipv4) label should

+ 8 - 4
zebra/connected.c

@@ -29,6 +29,7 @@
 #include "rib.h"
 #include "table.h"
 #include "log.h"
+#include "memory.h"
 
 #include "zebra/zserv.h"
 #include "zebra/redistribute.h"
@@ -219,7 +220,7 @@ connected_add_ipv4 (struct interface *ifp, int flags, struct in_addr *addr,
 
   /* Label of this address. */
   if (label)
-    ifc->label = strdup (label);
+    ifc->label = XSTRDUP (MTYPE_CONNECTED_LABEL, label);
 
   /* Check same connected route. */
   if ((current = connected_check (ifp, (struct prefix *) ifc->address)))
@@ -267,8 +268,7 @@ connected_down_ipv4 (struct interface *ifp, struct connected *ifc)
 /* Delete connected IPv4 route to the interface. */
 void
 connected_delete_ipv4 (struct interface *ifp, int flags, struct in_addr *addr,
-		       u_char prefixlen, struct in_addr *broad,
-		       const char *label)
+		       u_char prefixlen, struct in_addr *broad)
 {
   struct prefix_ipv4 p;
   struct connected *ifc;
@@ -330,7 +330,7 @@ connected_up_ipv6 (struct interface *ifp, struct connected *ifc)
 /* Add connected IPv6 route to the interface. */
 void
 connected_add_ipv6 (struct interface *ifp, struct in6_addr *addr,
-		    u_char prefixlen, struct in6_addr *broad)
+		    u_char prefixlen, struct in6_addr *broad, char *label)
 {
   struct prefix_ipv6 *p;
   struct connected *ifc;
@@ -356,6 +356,10 @@ connected_add_ipv6 (struct interface *ifp, struct in6_addr *addr,
       ifc->destination = (struct prefix *) p;
     }
 
+  /* Label of this address. */
+  if (label)
+    ifc->label = XSTRDUP (MTYPE_CONNECTED_LABEL, label);
+  
   if ((current = connected_check (ifp, (struct prefix *) ifc->address)))
     connected_withdraw (current); /* implicit update of existing address */
   

+ 2 - 3
zebra/connected.h

@@ -33,8 +33,7 @@ connected_add_ipv4 (struct interface *ifp, int flags, struct in_addr *addr,
 
 extern void
 connected_delete_ipv4 (struct interface *ifp, int flags, struct in_addr *addr,
-		       u_char prefixlen, struct in_addr *broad,
-		       const char *label);
+		       u_char prefixlen, struct in_addr *broad);
 
 extern void connected_up_ipv4 (struct interface *, struct connected *);
 extern void connected_down_ipv4 (struct interface *, struct connected *);
@@ -42,7 +41,7 @@ extern void connected_down_ipv4 (struct interface *, struct connected *);
 #ifdef HAVE_IPV6
 extern void
 connected_add_ipv6 (struct interface *ifp, struct in6_addr *address,
-		    u_char prefixlen, struct in6_addr *broad);
+		    u_char prefixlen, struct in6_addr *broad, char *label);
 extern void
 connected_delete_ipv6 (struct interface *ifp, struct in6_addr *address,
 		       u_char prefixlen, struct in6_addr *broad);

+ 2 - 1
zebra/if_ioctl.c

@@ -305,7 +305,8 @@ if_getaddrs (void)
 	    }	
 #endif          
 
-	  connected_add_ipv6 (ifp, &addr->sin6_addr, prefixlen, dest_pnt);
+	  connected_add_ipv6 (ifp, &addr->sin6_addr, prefixlen, 
+	                      dest_pnt, NULL);
 	}
 #endif /* HAVE_IPV6 */
     }

+ 38 - 12
zebra/if_ioctl_solaris.c

@@ -34,7 +34,7 @@
 #include "zebra/interface.h"
 
 void lifreq_set_name (struct lifreq *, struct interface *);
-static int if_get_addr (struct interface *, struct sockaddr *);
+static int if_get_addr (struct interface *, struct sockaddr *, const char *);
 static void interface_info_ioctl (struct interface *);
 extern struct zebra_privs_t zserv_privs;
 
@@ -71,7 +71,7 @@ interface_list_ioctl (int af)
 
 calculate_lifc_len:     /* must hold privileges to enter here */
   lifn.lifn_family = af;
-  lifn.lifn_flags = 0;
+  lifn.lifn_flags = LIFC_NOXMIT; /* we want NOXMIT interfaces too */
   ret = ioctl (sock, SIOCGLIFNUM, &lifn);
   save_errno = errno;
   
@@ -108,7 +108,7 @@ calculate_lifc_len:     /* must hold privileges to enter here */
   lastneeded = needed;
 
   lifconf.lifc_family = af;
-  lifconf.lifc_flags = 0;
+  lifconf.lifc_flags = LIFC_NOXMIT;
   lifconf.lifc_len = needed;
   lifconf.lifc_buf = buf;
 
@@ -138,9 +138,22 @@ calculate_lifc_len:     /* must hold privileges to enter here */
 
   for (n = 0; n < lifconf.lifc_len; n += sizeof (struct lifreq))
     {
-      ifp = if_get_by_name_len(lifreq->lifr_name,
-			       strnlen(lifreq->lifr_name,
-				       sizeof(lifreq->lifr_name)));
+      /* we treat Solaris logical interfaces as addresses, because that is
+       * how PF_ROUTE on Solaris treats them. Hence we can not directly use
+       * the lifreq_name to get the ifp.  We need to normalise the name
+       * before attempting get.
+       *
+       * Solaris logical interface names are in the form of:
+       * <interface name>:<logical interface id>
+       */
+      unsigned int normallen = 0;
+      
+      while ( (normallen < sizeof(lifreq->lifr_name))
+             && ( *(lifreq->lifr_name + normallen) != '\0')
+             && ( *(lifreq->lifr_name + normallen) != ':') )
+        normallen++;
+      
+      ifp = if_get_by_name_len(lifreq->lifr_name, normallen);
 
       if (lifreq->lifr_addr.ss_family == AF_INET)
         ifp->flags |= IFF_IPV4;
@@ -158,7 +171,15 @@ calculate_lifc_len:     /* must hold privileges to enter here */
       if_add_update (ifp);
 
       interface_info_ioctl (ifp);
-      if_get_addr (ifp, (struct sockaddr *) &lifreq->lifr_addr);
+      
+      /* If a logical interface pass the full name so it can be
+       * as a label on the address
+       */
+      if ( *(lifreq->lifr_name + normallen) != '\0')
+        if_get_addr (ifp, (struct sockaddr *) &lifreq->lifr_addr,
+                     lifreq->lifr_name);
+      else
+        if_get_addr (ifp, (struct sockaddr *) &lifreq->lifr_addr, NULL);
       lifreq++;
     }
 
@@ -209,8 +230,9 @@ if_get_index (struct interface *ifp)
 #define SIN(s) ((struct sockaddr_in *)(s))
 #define SIN6(s) ((struct sockaddr_in6 *)(s))
 
+/* Retrieve address information for the given ifp */
 static int
-if_get_addr (struct interface *ifp, struct sockaddr *addr)
+if_get_addr (struct interface *ifp, struct sockaddr *addr, const char *label)
 {
   int ret;
   struct lifreq lifreq;
@@ -219,8 +241,11 @@ if_get_addr (struct interface *ifp, struct sockaddr *addr)
   u_char prefixlen = 0;
   afi_t af;
 
-  /* Interface's name and address family. */
-  strncpy (lifreq.lifr_name, ifp->name, IFNAMSIZ);
+  /* Interface's name and address family.
+   * We need to use the logical interface name / label, if we've been
+   * given one, in order to get the right address
+   */
+  strncpy (lifreq.lifr_name, (label : label ? ifp->name), IFNAMSIZ);
 
   /* Interface's address. */
   memcpy (&lifreq.lifr_addr, addr, ADDRLEN (addr));
@@ -306,11 +331,11 @@ if_get_addr (struct interface *ifp, struct sockaddr *addr)
   /* Set address to the interface. */
   if (af == AF_INET)
     connected_add_ipv4 (ifp, 0, &SIN (addr)->sin_addr, prefixlen,
-                        (struct in_addr *) dest_pnt, NULL);
+                        (struct in_addr *) dest_pnt, label);
 #ifdef HAVE_IPV6
   else if (af == AF_INET6)
     connected_add_ipv6 (ifp, &SIN6 (addr)->sin6_addr, prefixlen,
-                        (struct in6_addr *) dest_pnt);
+                        (struct in6_addr *) dest_pnt, label);
 #endif /* HAVE_IPV6 */
 
   return 0;
@@ -332,6 +357,7 @@ interface_list ()
 {
   interface_list_ioctl (AF_INET);
   interface_list_ioctl (AF_INET6);
+  interface_list_ioctl (AF_UNSPEC);
 }
 
 struct connected *

+ 1 - 1
zebra/if_proc.c

@@ -240,7 +240,7 @@ ifaddr_proc_ipv6 ()
       str2in6_addr (addr, &p.prefix);
       p.prefixlen = plen;
 
-      connected_add_ipv6 (ifp, &p.prefix, p.prefixlen, NULL);
+      connected_add_ipv6 (ifp, &p.prefix, p.prefixlen, NULL, ifname);
     }
   fclose (fp);
   return 0;

+ 13 - 2
zebra/interface.c

@@ -209,6 +209,16 @@ if_addr_wakeup (struct interface *ifp)
 	    {
 	      if (! if_is_up (ifp))
 		{
+		  /* XXX: WTF is it trying to set flags here?
+		   * caller has just gotten a new interface, has been
+                   * handed the flags already. This code has no business
+                   * trying to override administrative status of the interface.
+                   * The only call path to here which doesn't originate from
+                   * kernel event is irdp - what on earth is it trying to do?
+                   *
+                   * further RUNNING is not a settable flag on any system
+                   * I (paulj) am aware of.
+                   */
 		  if_set_flags (ifp, IFF_UP | IFF_RUNNING);
 		  if_refresh (ifp);
 		}
@@ -236,6 +246,7 @@ if_addr_wakeup (struct interface *ifp)
 	    {
 	      if (! if_is_up (ifp))
 		{
+		  /* XXX: See long comment above */
 		  if_set_flags (ifp, IFF_UP | IFF_RUNNING);
 		  if_refresh (ifp);
 		}
@@ -1172,7 +1183,7 @@ ip_address_install (struct vty *vty, struct interface *ifp,
 
       /* Label. */
       if (label)
-	ifc->label = strdup (label);
+	ifc->label = XSTRDUP (MTYPE_CONNECTED_LABEL, label);
 
       /* Add to linked list. */
       listnode_add (ifp->connected, ifc);
@@ -1363,7 +1374,7 @@ ipv6_address_install (struct vty *vty, struct interface *ifp,
 
       /* Label. */
       if (label)
-	ifc->label = strdup (label);
+	ifc->label = XSTRDUP (MTYPE_CONNECTED_LABEL, label);
 
       /* Add to linked list. */
       listnode_add (ifp->connected, ifc);

+ 38 - 12
zebra/ioctl_solaris.c

@@ -274,11 +274,35 @@ if_unset_prefix (struct interface *ifp, struct connected *ifc)
   return 0;
 }
 
+/* Solaris IFF_UP flag reflects only the primary interface as the
+ * routing socket only sends IFINFO for the primary interface.  Hence  
+ * ~IFF_UP does not per se imply all the logical interfaces are also   
+ * down - which we only know of as addresses. Instead we must determine
+ * whether the interface really is up or not according to how many   
+ * addresses are still attached. (Solaris always sends RTM_DELADDR if
+ * an interface, logical or not, goes ~IFF_UP).
+ *
+ * Ie, we mangle IFF_UP to reflect whether or not there are addresses
+ * left in struct connected, not the actual underlying IFF_UP flag
+ * (which corresponds to just one address of all the logical interfaces)
+ *
+ * Setting IFF_UP within zebra to administratively shutdown the
+ * interface will affect only the primary interface/address on Solaris.
+ */
+static inline void
+if_mangle_up (struct interface *ifp)
+{
+  if (listcount(ifp->connected) > 0)
+    SET_FLAG (ifp->flags, IFF_UP);
+  else
+    UNSET_FLAG (ifp->flags, IFF_UP);
+}
+
 /* get interface flags */
 void
 if_get_flags (struct interface *ifp)
 {
-  int ret;
+  int ret4, ret6;
   struct lifreq lifreq;
   unsigned long flags4 = 0, flags6 = 0;
 
@@ -286,25 +310,27 @@ if_get_flags (struct interface *ifp)
     {
       lifreq_set_name (&lifreq, ifp);
       
-      ret = AF_IOCTL (AF_INET, SIOCGLIFFLAGS, (caddr_t) & lifreq);
-
-      flags4 = (lifreq.lifr_flags & 0xffffffff);
-      if (!(flags4 & IFF_UP))
-        flags4 &= ~IFF_IPV4;
+      ret4 = AF_IOCTL (AF_INET, SIOCGLIFFLAGS, (caddr_t) & lifreq);
+      
+      if (!ret4)
+        flags4 = (lifreq.lifr_flags & 0xffffffff);
     }
 
   if (ifp->flags & IFF_IPV6)
     {
       lifreq_set_name (&lifreq, ifp);
       
-      ret = AF_IOCTL (AF_INET6, SIOCGLIFFLAGS, (caddr_t) & lifreq);
-              
-      flags6 = (lifreq.lifr_flags & 0xffffffff);
-      if (!(flags6 & IFF_UP))
-        flags6 &= ~IFF_IPV6;
+      ret6 = AF_IOCTL (AF_INET6, SIOCGLIFFLAGS, (caddr_t) & lifreq);
+      
+      if (!ret6)
+        flags6 = (lifreq.lifr_flags & 0xffffffff);
     }
+  
+  /* only update flags if one of above succeeded */
+  if ( !(ret4 && ret6) )
+    ifp->flags = (flags4 | flags6);
 
-  ifp->flags = (flags4 | flags6);
+  if_mangle_up (ifp);
 }
 
 /* Set interface flags */

+ 8 - 6
zebra/kernel_socket.c

@@ -465,7 +465,7 @@ int
 ifam_read (struct ifa_msghdr *ifam)
 {
   struct interface *ifp;
-  union sockunion addr, mask, gate;
+  union sockunion addr, mask, brd;
 
   /* Check does this interface exist or not. */
   ifp = if_lookup_by_index (ifam->ifam_index);
@@ -476,7 +476,7 @@ ifam_read (struct ifa_msghdr *ifam)
     }
 
   /* Allocate and read address information. */
-  ifam_read_mesg (ifam, &addr, &mask, &gate);
+  ifam_read_mesg (ifam, &addr, &mask, &brd);
 
   /* Check interface flag for implicit up of the interface. */
   if_refresh (ifp);
@@ -488,11 +488,12 @@ ifam_read (struct ifa_msghdr *ifam)
       if (ifam->ifam_type == RTM_NEWADDR)
 	connected_add_ipv4 (ifp, 0, &addr.sin.sin_addr, 
 			    ip_masklen (mask.sin.sin_addr),
-			    &gate.sin.sin_addr, NULL);
+			    &brd.sin.sin_addr,
+			    (isalias ? ifname : NULL) );
       else
 	connected_delete_ipv4 (ifp, 0, &addr.sin.sin_addr, 
 			       ip_masklen (mask.sin.sin_addr),
-			       &gate.sin.sin_addr, NULL);
+			       &brd.sin.sin_addr);
       break;
 #ifdef HAVE_IPV6
     case AF_INET6:
@@ -505,12 +506,13 @@ ifam_read (struct ifa_msghdr *ifam)
 	connected_add_ipv6 (ifp,
 			    &addr.sin6.sin6_addr, 
 			    ip6_masklen (mask.sin6.sin6_addr),
-			    &gate.sin6.sin6_addr);
+			    &brd.sin6.sin6_addr,
+			    (isalias ? ifname : NULL) );
       else
 	connected_delete_ipv6 (ifp,
 			       &addr.sin6.sin6_addr, 
 			       ip6_masklen (mask.sin6.sin6_addr),
-			       &gate.sin6.sin6_addr);
+			       &brd.sin6.sin6_addr);
       break;
 #endif /* HAVE_IPV6 */
     default:

+ 2 - 2
zebra/rt_netlink.c

@@ -686,7 +686,7 @@ netlink_interface_addr (struct sockaddr_nl *snl, struct nlmsghdr *h)
       else
         connected_delete_ipv4 (ifp, flags,
                                (struct in_addr *) addr, ifa->ifa_prefixlen,
-                               (struct in_addr *) broad, label);
+                               (struct in_addr *) broad);
     }
 #ifdef HAVE_IPV6
   if (ifa->ifa_family == AF_INET6)
@@ -694,7 +694,7 @@ netlink_interface_addr (struct sockaddr_nl *snl, struct nlmsghdr *h)
       if (h->nlmsg_type == RTM_NEWADDR)
         connected_add_ipv6 (ifp,
                             (struct in6_addr *) addr, ifa->ifa_prefixlen,
-                            (struct in6_addr *) broad);
+                            (struct in6_addr *) broad, label);
       else
         connected_delete_ipv6 (ifp,
                                (struct in6_addr *) addr, ifa->ifa_prefixlen,