u16 as_u16[8];
u32 as_u32[4];
u64 as_u64[2];
+ u64x2 as_u128;
uword as_uword[16 / sizeof (uword)];
}
-ip6_address_t;
+__clib_packed ip6_address_t;
+
+STATIC_ASSERT_SIZEOF (ip6_address_t, 16);
typedef struct
{
}) ip6_address_fib_t;
/* *INDENT-ON* */
-typedef enum
-{
- IP46_TYPE_ANY,
- IP46_TYPE_IP4,
- IP46_TYPE_IP6
-} ip46_type_t;
-
-/* *INDENT-OFF* */
-typedef CLIB_PACKED (union ip46_address_t_ {
- struct {
- u32 pad[3];
- ip4_address_t ip4;
- };
- ip6_address_t ip6;
- u8 as_u8[16];
- u64 as_u64[2];
-}) ip46_address_t;
-/* *INDENT-ON* */
-#define ip46_address_is_ip4(ip46) (((ip46)->pad[0] | (ip46)->pad[1] | (ip46)->pad[2]) == 0)
-#define ip46_address_mask_ip4(ip46) ((ip46)->pad[0] = (ip46)->pad[1] = (ip46)->pad[2] = 0)
-#define ip46_address_set_ip4(ip46, ip) (ip46_address_mask_ip4(ip46), (ip46)->ip4 = (ip)[0])
-#define ip46_address_reset(ip46) ((ip46)->as_u64[0] = (ip46)->as_u64[1] = 0)
-#define ip46_address_cmp(ip46_1, ip46_2) (memcmp(ip46_1, ip46_2, sizeof(*ip46_1)))
-#define ip46_address_is_zero(ip46) (((ip46)->as_u64[0] == 0) && ((ip46)->as_u64[1] == 0))
-#define ip46_address_is_equal(a1, a2) (((a1)->as_u64[0] == (a2)->as_u64[0]) \
- && ((a1)->as_u64[1] == (a2)->as_u64[1]))
-#define ip46_address_initializer {{{ 0 }}}
-
-static_always_inline int
-ip46_address_is_equal_v4 (const ip46_address_t * ip46,
- const ip4_address_t * ip4)
-{
- return (ip46->ip4.as_u32 == ip4->as_u32);
-}
-
-static_always_inline int
-ip46_address_is_equal_v6 (const ip46_address_t * ip46,
- const ip6_address_t * ip6)
-{
- return ((ip46->ip6.as_u64[0] == ip6->as_u64[0]) &&
- (ip46->ip6.as_u64[1] == ip6->as_u64[1]));
-}
-
-static_always_inline void
-ip46_address_copy (ip46_address_t * dst, const ip46_address_t * src)
-{
- dst->as_u64[0] = src->as_u64[0];
- dst->as_u64[1] = src->as_u64[1];
-}
-
-static_always_inline void
-ip46_address_set_ip6 (ip46_address_t * dst, const ip6_address_t * src)
-{
- dst->as_u64[0] = src->as_u64[0];
- dst->as_u64[1] = src->as_u64[1];
-}
-
-always_inline ip46_address_t
-to_ip46 (u32 is_ipv6, u8 * buf)
-{
- ip46_address_t ip;
- if (is_ipv6)
- ip.ip6 = *((ip6_address_t *) buf);
- else
- ip46_address_set_ip4 (&ip, (ip4_address_t *) buf);
- return ip;
-}
-
-
always_inline void
ip6_addr_fib_init (ip6_address_fib_t * addr_fib,
const ip6_address_t * address, u32 fib_index)
return a->as_u8[0] == 0xff;
}
-always_inline uword
-ip46_address_is_multicast (const ip46_address_t * a)
-{
- return ip46_address_is_ip4 (a) ? ip4_address_is_multicast (&a->ip4) :
- ip6_address_is_multicast (&a->ip6);
-}
-
always_inline void
ip6_address_copy (ip6_address_t * dst, const ip6_address_t * src)
{
ip6_address_t src_address, dst_address;
} ip6_header_t;
+#define IP6_PACKET_TC_MASK 0x0FF00000
+#define IP6_PACKET_DSCP_MASK 0x0FC00000
+#define IP6_PACKET_ECN_MASK 0x00300000
+#define IP6_PACKET_FL_MASK 0x000FFFFF
+
always_inline ip_dscp_t
ip6_traffic_class (const ip6_header_t * i)
{
- return (i->ip_version_traffic_class_and_flow_label & 0x0FF00000) >> 20;
+ return (i->ip_version_traffic_class_and_flow_label & IP6_PACKET_TC_MASK) >>
+ 20;
}
static_always_inline ip_dscp_t
ip6_traffic_class_network_order (const ip6_header_t * ip6)
{
return (clib_net_to_host_u32 (ip6->ip_version_traffic_class_and_flow_label)
- & 0x0ff00000) >> 20;
+ & IP6_PACKET_TC_MASK) >> 20;
+}
+
+static_always_inline ip_dscp_t
+ip6_dscp_network_order (const ip6_header_t * ip6)
+{
+ return (clib_net_to_host_u32 (ip6->ip_version_traffic_class_and_flow_label)
+ & IP6_PACKET_DSCP_MASK) >> 22;
+}
+
+static_always_inline ip_ecn_t
+ip6_ecn_network_order (const ip6_header_t * ip6)
+{
+ return (clib_net_to_host_u32 (ip6->ip_version_traffic_class_and_flow_label)
+ & IP6_PACKET_ECN_MASK) >> 20;
}
static_always_inline void
ip6->ip_version_traffic_class_and_flow_label = clib_host_to_net_u32 (tmp);
}
+static_always_inline void
+ip6_set_dscp_network_order (ip6_header_t * ip6, ip_dscp_t dscp)
+{
+ u32 tmp =
+ clib_net_to_host_u32 (ip6->ip_version_traffic_class_and_flow_label);
+ tmp &= 0xf03fffff;
+ tmp |= (dscp << 22);
+ ip6->ip_version_traffic_class_and_flow_label = clib_host_to_net_u32 (tmp);
+}
+
+static_always_inline void
+ip6_set_ecn_network_order (ip6_header_t * ip6, ip_ecn_t ecn)
+{
+ u32 tmp =
+ clib_net_to_host_u32 (ip6->ip_version_traffic_class_and_flow_label);
+ tmp &= 0xffcfffff;
+ tmp |= (ecn << 20);
+ ip6->ip_version_traffic_class_and_flow_label = clib_host_to_net_u32 (tmp);
+}
+
always_inline void *
ip6_next_header (ip6_header_t * i)
{
return result;
}
+/*
+ * walk extension headers, looking for a specific extension header and last
+ * extension header, calculating length of all extension headers
+ *
+ * @param vm
+ * @param b buffer to limit search to
+ * @param ip6_header ipv6 header
+ * @param find_hdr extension header to look for (ignored if ext_hdr is NULL)
+ * @param length[out] length of all extension headers
+ * @param ext_hdr[out] extension header of type find_hdr (may be NULL)
+ * @param last_ext_hdr[out] last extension header (may be NULL)
+ *
+ * @return 0 on success, -1 on failure (ext headers crossing buffer boundary)
+ */
+always_inline int
+ip6_walk_ext_hdr (vlib_main_t * vm, vlib_buffer_t * b,
+ const ip6_header_t * ip6_header, u8 find_hdr, u32 * length,
+ ip6_ext_header_t ** ext_hdr,
+ ip6_ext_header_t ** last_ext_hdr)
+{
+ if (!ip6_ext_hdr (ip6_header->protocol))
+ {
+ *length = 0;
+ *ext_hdr = NULL;
+ *last_ext_hdr = NULL;
+ return 0;
+ }
+ *length = 0;
+ ip6_ext_header_t *h = (void *) (ip6_header + 1);
+ if (!vlib_object_within_buffer_data (vm, b, h, ip6_ext_header_len (h)))
+ {
+ return -1;
+ }
+ *length += ip6_ext_header_len (h);
+ *last_ext_hdr = h;
+ *ext_hdr = NULL;
+ if (ip6_header->protocol == find_hdr)
+ {
+ *ext_hdr = h;
+ }
+ while (ip6_ext_hdr (h->next_hdr))
+ {
+ if (h->next_hdr == find_hdr)
+ {
+ h = ip6_ext_next_header (h);
+ *ext_hdr = h;
+ }
+ else
+ {
+ h = ip6_ext_next_header (h);
+ }
+ if (!vlib_object_within_buffer_data (vm, b, h, ip6_ext_header_len (h)))
+ {
+ return -1;
+ }
+ *length += ip6_ext_header_len (h);
+ *last_ext_hdr = h;
+ }
+ return 0;
+}
+
/* *INDENT-OFF* */
typedef CLIB_PACKED (struct {
u8 next_hdr;
Code Review / vpp.git / blobdiff