X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;ds=sidebyside;f=src%2Fvnet%2Fip%2Fip.h;h=65ccaef40c2b809c5b0404e096e1a68653db7e03;hb=2e8b0618b12d317f2a4632e69a0663dcd8dde472;hp=788078666b8aa24592df11dc15666659fd19bba3;hpb=6b3a8eff76f27f2b919887582006b2290d12ecfa;p=vpp.git

diff --git a/src/vnet/ip/ip.h b/src/vnet/ip/ip.h
index 788078666b8..65ccaef40c2 100644
--- a/src/vnet/ip/ip.h
+++ b/src/vnet/ip/ip.h
@@ -65,6 +65,22 @@
 #include <vnet/ip/icmp6.h>
 #include <vnet/classify/vnet_classify.h>
 
+typedef enum ip_address_family_t_
+{
+  AF_IP4,
+  AF_IP6,
+} ip_address_family_t;
+
+extern uword unformat_ip_address_family (unformat_input_t * input,
+					 va_list * args);
+extern u8 *format_ip_address_family (u8 * s, va_list * args);
+
+#define FOR_EACH_IP_ADDRESS_FAMILY(_af) \
+  for (_af = AF_IP4; _af <= AF_IP6; _af++)
+
+#define u8_ptr_add(ptr, index) (((u8 *)ptr) + index)
+#define u16_net_add(u, val) clib_host_to_net_u16(clib_net_to_host_u16(u) + (val))
+
 /* Per protocol info. */
 typedef struct
 {
@@ -159,7 +175,7 @@ ip_incremental_checksum_buffer (vlib_main_t * vm,
   void *h;
   u32 n;
 
-  n = clib_min (n_bytes_left, b->current_length);
+  n = clib_min (n_bytes_left, b->current_length - first_buffer_offset);
   h = vlib_buffer_get_current (b) + first_buffer_offset;
   sum = ip_incremental_checksum (sum, h, n);
   if (PREDICT_FALSE (b->flags & VLIB_BUFFER_NEXT_PRESENT))
@@ -179,18 +195,118 @@ ip_incremental_checksum_buffer (vlib_main_t * vm,
   return sum;
 }
 
+always_inline u16
+ip_calculate_l4_checksum (vlib_main_t * vm, vlib_buffer_t * p0,
+			  ip_csum_t sum0, u32 payload_length,
+			  u8 * iph, u32 ip_header_size, u8 * l4h)
+{
+  u16 sum16;
+  u8 *data_this_buffer, length_odd;
+  u32 n_bytes_left, n_this_buffer, n_ip_bytes_this_buffer;
+
+  n_bytes_left = payload_length;
+
+  if (l4h)			/* packet l4 header and no buffer chain involved */
+    {
+      ASSERT (p0 == NULL);
+      n_this_buffer = payload_length;
+      data_this_buffer = l4h;
+    }
+  else
+    {
+      ASSERT (p0);
+      if (iph)			/* ip header pointer set to packet in buffer */
+	{
+	  ASSERT (ip_header_size);
+	  n_this_buffer = payload_length;
+	  data_this_buffer = iph + ip_header_size;	/* at l4 header */
+	  n_ip_bytes_this_buffer =
+	    p0->current_length - (((u8 *) iph - p0->data) - p0->current_data);
+	  if (PREDICT_FALSE (payload_length + ip_header_size >
+			     n_ip_bytes_this_buffer))
+	    {
+	      n_this_buffer = n_ip_bytes_this_buffer - ip_header_size;
+	      if (PREDICT_FALSE (n_this_buffer >> 31))
+		{		/*  error - ip header don't fit this buffer */
+		  ASSERT (0);
+		  return 0xfefe;
+		}
+	    }
+	}
+      else			/* packet in buffer with no ip header  */
+	{			/* buffer current pointer at l4 header */
+	  n_this_buffer = p0->current_length;
+	  data_this_buffer = vlib_buffer_get_current (p0);
+	}
+      n_this_buffer = clib_min (n_this_buffer, n_bytes_left);
+    }
+
+  while (1)
+    {
+      sum0 = ip_incremental_checksum (sum0, data_this_buffer, n_this_buffer);
+      n_bytes_left -= n_this_buffer;
+      if (n_bytes_left == 0)
+	break;
+
+      if (!(p0->flags & VLIB_BUFFER_NEXT_PRESENT))
+	{
+	  ASSERT (0);		/* error - more buffer expected */
+	  return 0xfefe;
+	}
+
+      length_odd = (n_this_buffer & 1);
+
+      p0 = vlib_get_buffer (vm, p0->next_buffer);
+      data_this_buffer = vlib_buffer_get_current (p0);
+      n_this_buffer = clib_min (p0->current_length, n_bytes_left);
+
+      if (PREDICT_FALSE (length_odd))
+	{
+	  /* Prepend a 0 byte to maintain 2-byte checksum alignment */
+	  data_this_buffer--;
+	  n_this_buffer++;
+	  n_bytes_left++;
+	  data_this_buffer[0] = 0;
+	}
+    }
+
+  sum16 = ~ip_csum_fold (sum0);
+  return sum16;
+}
+
 void ip_del_all_interface_addresses (vlib_main_t * vm, u32 sw_if_index);
 
 extern vlib_node_registration_t ip4_inacl_node;
 extern vlib_node_registration_t ip6_inacl_node;
 
-void ip_table_create (fib_protocol_t fproto, u32 table_id, u8 is_api);
+void ip_table_create (fib_protocol_t fproto, u32 table_id, u8 is_api,
+		      const u8 * name);
 
 void ip_table_delete (fib_protocol_t fproto, u32 table_id, u8 is_api);
 
 int ip_table_bind (fib_protocol_t fproto, u32 sw_if_index,
 		   u32 table_id, u8 is_api);
 
+u8 ip_is_zero (ip46_address_t * ip46_address, u8 is_ip4);
+u8 ip_is_local_host (ip46_address_t * ip46_address, u8 is_ip4);
+u8 ip4_is_local_host (ip4_address_t * ip4_address);
+u8 ip6_is_local_host (ip6_address_t * ip6_address);
+u8 ip_is_local (u32 fib_index, ip46_address_t * ip46_address, u8 is_ip4);
+u8 ip_interface_has_address (u32 sw_if_index, ip46_address_t * ip, u8 is_ip4);
+void ip_copy (ip46_address_t * dst, ip46_address_t * src, u8 is_ip4);
+void ip_set (ip46_address_t * dst, void *src, u8 is_ip4);
+void *ip_interface_get_first_ip (u32 sw_if_index, u8 is_ip4);
+void ip4_address_normalize (ip4_address_t * ip4, u8 preflen);
+void ip6_address_normalize (ip6_address_t * ip6, u8 preflen);
+void ip4_preflen_to_mask (u8 pref_len, ip4_address_t * ip);
+u32 ip4_mask_to_preflen (ip4_address_t * mask);
+void ip4_prefix_max_address_host_order (ip4_address_t * ip, u8 plen,
+					ip4_address_t * res);
+void ip6_prefix_max_address_host_order (ip6_address_t * ip, u8 plen,
+					ip6_address_t * res);
+void ip6_preflen_to_mask (u8 pref_len, ip6_address_t * mask);
+u32 ip6_mask_to_preflen (ip6_address_t * mask);
+
 #endif /* included_ip_main_h */
 
 /*