#define OI_DECAP 0x80000000
static void
-ip6_add_interface_routes (vnet_main_t * vnm, u32 sw_if_index,
- ip6_main_t * im, u32 fib_index,
- ip_interface_address_t * a)
+ip6_add_interface_prefix_routes (ip6_main_t * im,
+ u32 sw_if_index,
+ u32 fib_index,
+ ip6_address_t * address, u32 address_length)
{
ip_lookup_main_t *lm = &im->lookup_main;
- ip6_address_t *address = ip_interface_address_get_address (lm, a);
- fib_prefix_t pfx = {
- .fp_len = a->address_length,
- .fp_proto = FIB_PROTOCOL_IP6,
- .fp_addr.ip6 = *address,
+ ip_interface_prefix_t *if_prefix;
+
+ /* *INDENT-OFF* */
+ ip_interface_prefix_key_t key = {
+ .prefix = {
+ .fp_len = address_length,
+ .fp_proto = FIB_PROTOCOL_IP6,
+ .fp_addr.ip6 = {
+ .as_u64 = {
+ address->as_u64[0] & im->fib_masks[address_length].as_u64[0],
+ address->as_u64[1] & im->fib_masks[address_length].as_u64[1],
+ },
+ },
+ },
+ .sw_if_index = sw_if_index,
};
+ /* *INDENT-ON* */
+
+ /* If prefix already set on interface, just increment ref count & return */
+ if_prefix = ip_get_interface_prefix (lm, &key);
+ if (if_prefix)
+ {
+ if_prefix->ref_count += 1;
+ return;
+ }
+
+ /* New prefix - allocate a pool entry, initialize it, add to the hash */
+ pool_get (lm->if_prefix_pool, if_prefix);
+ if_prefix->ref_count = 1;
+ clib_memcpy (&if_prefix->key, &key, sizeof (key));
+ mhash_set (&lm->prefix_to_if_prefix_index, &key,
+ if_prefix - lm->if_prefix_pool, 0 /* old value */ );
- if (a->address_length < 128)
+ /* length < 128 - add glean */
+ if (address_length < 128)
{
- fib_table_entry_update_one_path (fib_index,
- &pfx,
+ /* set the glean route for the prefix */
+ fib_table_entry_update_one_path (fib_index, &key.prefix,
FIB_SOURCE_INTERFACE,
(FIB_ENTRY_FLAG_CONNECTED |
FIB_ENTRY_FLAG_ATTACHED),
NULL, sw_if_index,
/* invalid FIB index */
~0, 1,
- /* no label stack */
+ /* no out-label stack */
NULL, FIB_ROUTE_PATH_FLAG_NONE);
}
+}
+
+static void
+ip6_add_interface_routes (vnet_main_t * vnm, u32 sw_if_index,
+ ip6_main_t * im, u32 fib_index,
+ ip_interface_address_t * a)
+{
+ ip_lookup_main_t *lm = &im->lookup_main;
+ ip6_address_t *address = ip_interface_address_get_address (lm, a);
+ fib_prefix_t pfx = {
+ .fp_len = a->address_length,
+ .fp_proto = FIB_PROTOCOL_IP6,
+ .fp_addr.ip6 = *address,
+ };
+
+ /* set special routes for the prefix if needed */
+ ip6_add_interface_prefix_routes (im, sw_if_index, fib_index,
+ address, a->address_length);
pfx.fp_len = 128;
if (sw_if_index < vec_len (lm->classify_table_index_by_sw_if_index))
}
static void
-ip6_del_interface_routes (ip6_main_t * im,
+ip6_del_interface_prefix_routes (ip6_main_t * im,
+ u32 sw_if_index,
+ u32 fib_index,
+ ip6_address_t * address, u32 address_length)
+{
+ ip_lookup_main_t *lm = &im->lookup_main;
+ ip_interface_prefix_t *if_prefix;
+
+ /* *INDENT-OFF* */
+ ip_interface_prefix_key_t key = {
+ .prefix = {
+ .fp_len = address_length,
+ .fp_proto = FIB_PROTOCOL_IP6,
+ .fp_addr.ip6 = {
+ .as_u64 = {
+ address->as_u64[0] & im->fib_masks[address_length].as_u64[0],
+ address->as_u64[1] & im->fib_masks[address_length].as_u64[1],
+ },
+ },
+ },
+ .sw_if_index = sw_if_index,
+ };
+ /* *INDENT-ON* */
+
+ if_prefix = ip_get_interface_prefix (lm, &key);
+ if (!if_prefix)
+ {
+ clib_warning ("Prefix not found while deleting %U",
+ format_ip4_address_and_length, address, address_length);
+ return;
+ }
+
+ /* If not deleting last intf addr in prefix, decrement ref count & return */
+ if_prefix->ref_count -= 1;
+ if (if_prefix->ref_count > 0)
+ return;
+
+ /* length <= 128, delete glean route */
+ if (address_length <= 128)
+ {
+ /* remove glean route for prefix */
+ fib_table_entry_delete (fib_index, &key.prefix, FIB_SOURCE_INTERFACE);
+ }
+
+ mhash_unset (&lm->prefix_to_if_prefix_index, &key, 0 /* old_value */ );
+ pool_put (lm->if_prefix_pool, if_prefix);
+}
+
+static void
+ip6_del_interface_routes (u32 sw_if_index, ip6_main_t * im,
u32 fib_index,
ip6_address_t * address, u32 address_length)
{
fib_prefix_t pfx = {
- .fp_len = address_length,
+ .fp_len = 128,
.fp_proto = FIB_PROTOCOL_IP6,
.fp_addr.ip6 = *address,
};
- if (pfx.fp_len < 128)
- {
- fib_table_entry_delete (fib_index, &pfx, FIB_SOURCE_INTERFACE);
-
- }
+ /* delete special routes for the prefix if needed */
+ ip6_del_interface_prefix_routes (im, sw_if_index, fib_index,
+ address, address_length);
- pfx.fp_len = 128;
fib_table_entry_delete (fib_index, &pfx, FIB_SOURCE_INTERFACE);
}
address,
address_length))
{
+ /* an intf may have >1 addr from the same prefix */
+ if ((sw_if_index == sif->sw_if_index) &&
+ (ia->address_length == address_length) &&
+ !ip6_address_is_equal (x, address))
+ continue;
+
+ /* error if the length or intf was different */
vnm->api_errno = VNET_API_ERROR_DUPLICATE_IF_ADDRESS;
return
clib_error_create
ip6_sw_interface_enable_disable (sw_if_index, !is_del);
- if (is_del)
- ip6_del_interface_routes (im, ip6_af.fib_index, address, address_length);
- else
- ip6_add_interface_routes (vnm, sw_if_index,
- im, ip6_af.fib_index,
- pool_elt_at_index (lm->if_address_pool,
- if_address_index));
-
+ /* intf addr routes are added/deleted on admin up/down */
+ if (vnet_sw_interface_is_admin_up (vnm, sw_if_index))
+ {
+ if (is_del)
+ ip6_del_interface_routes (sw_if_index,
+ im, ip6_af.fib_index, address,
+ address_length);
+ else
+ ip6_add_interface_routes (vnm, sw_if_index,
+ im, ip6_af.fib_index,
+ pool_elt_at_index (lm->if_address_pool,
+ if_address_index));
+ }
{
ip6_add_del_interface_address_callback_t *cb;
vec_foreach (cb, im->add_del_interface_address_callbacks)
im, fib_index,
ia);
else
- ip6_del_interface_routes (im, fib_index,
+ ip6_del_interface_routes (sw_if_index, im, fib_index,
a, ia->address_length);
}));
/* *INDENT-ON* */
ip6_header_t * ip0, int *bogus_lengthp)
{
ip_csum_t sum0;
- u16 sum16, payload_length_host_byte_order;
- u32 i, n_this_buffer, n_bytes_left;
+ u16 payload_length_host_byte_order;
+ u32 i;
u32 headers_size = sizeof (ip0[0]);
- void *data_this_buffer;
+ u8 *data_this_buffer;
ASSERT (bogus_lengthp);
*bogus_lengthp = 0;
/* Initialize checksum with ip header. */
sum0 = ip0->payload_length + clib_host_to_net_u16 (ip0->protocol);
payload_length_host_byte_order = clib_net_to_host_u16 (ip0->payload_length);
- data_this_buffer = (void *) (ip0 + 1);
+ data_this_buffer = (u8 *) (ip0 + 1);
for (i = 0; i < ARRAY_LEN (ip0->src_address.as_uword); i++)
{
- sum0 = ip_csum_with_carry (sum0,
- clib_mem_unaligned (&ip0->
- src_address.as_uword[i],
- uword));
- sum0 =
- ip_csum_with_carry (sum0,
- clib_mem_unaligned (&ip0->dst_address.as_uword[i],
- uword));
+ sum0 = ip_csum_with_carry
+ (sum0, clib_mem_unaligned (&ip0->src_address.as_uword[i], uword));
+ sum0 = ip_csum_with_carry
+ (sum0, clib_mem_unaligned (&ip0->dst_address.as_uword[i], uword));
}
/* some icmp packets may come with a "router alert" hop-by-hop extension header (e.g., mldv2 packets)
headers_size += skip_bytes;
}
- n_bytes_left = n_this_buffer = payload_length_host_byte_order;
- if (p0 && n_this_buffer + headers_size > p0->current_length)
- n_this_buffer =
- p0->current_length >
- headers_size ? p0->current_length - headers_size : 0;
- 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))
- {
- *bogus_lengthp = 1;
- return 0xfefe;
- }
- 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);
- }
-
- sum16 = ~ip_csum_fold (sum0);
-
- return sum16;
+ if (p0)
+ return ip_calculate_l4_checksum (vm, p0, sum0,
+ payload_length_host_byte_order,
+ (u8 *) ip0, headers_size, NULL);
+ else
+ return ip_calculate_l4_checksum (vm, 0, sum0,
+ payload_length_host_byte_order, NULL, 0,
+ data_this_buffer);
}
u32
(vnet_buffer (b)->sw_if_index[VLIB_TX] == (u32) ~ 0) ?
fib_index : vnet_buffer (b)->sw_if_index[VLIB_TX];
- lbi = ip6_fib_table_fwding_lookup (im, fib_index, &i->src_address);
+ lbi = ip6_fib_table_fwding_lookup (fib_index, &i->src_address);
lb0 = load_balance_get (lbi);
return (fib_urpf_check_size (lb0->lb_urpf));
[IP_LOCAL_NEXT_PUNT] = "ip6-punt",
[IP_LOCAL_NEXT_UDP_LOOKUP] = "ip6-udp-lookup",
[IP_LOCAL_NEXT_ICMP] = "ip6-icmp-input",
- [IP_LOCAL_NEXT_REASSEMBLY] = "ip6-reassembly",
+ [IP_LOCAL_NEXT_REASSEMBLY] = "ip6-full-reassembly",
},
};
/* *INDENT-ON* */