#define __included_udp_h__
#include <vnet/vnet.h>
+#include <vnet/udp/udp_inlines.h>
+#include <vnet/udp/udp_local.h>
#include <vnet/udp/udp_packet.h>
-#include <vnet/ip/ip.h>
-#include <vnet/ip/ip4.h>
#include <vnet/ip/ip4_packet.h>
-#include <vnet/pg/pg.h>
#include <vnet/ip/format.h>
#include <vnet/ip/ip.h>
typedef enum
{
-#define udp_error(n,s) UDP_ERROR_##n,
+#define udp_error(f, n, s, d) UDP_ERROR_##f,
#include <vnet/udp/udp_error.def>
#undef udp_error
UDP_N_ERROR,
clib_spinlock_t rx_lock; /**< rx fifo lock */
u8 flags; /**< connection flags */
u16 mss; /**< connection mss */
+ u32 sw_if_index; /**< connection sw_if_index */
} udp_connection_t;
-#define foreach_udp4_dst_port \
-_ (53, dns) \
-_ (67, dhcp_to_server) \
-_ (68, dhcp_to_client) \
-_ (500, ikev2) \
-_ (2152, GTPU) \
-_ (3784, bfd4) \
-_ (3785, bfd_echo4) \
-_ (4341, lisp_gpe) \
-_ (4342, lisp_cp) \
-_ (4500, ipsec) \
-_ (4739, ipfix) \
-_ (4789, vxlan) \
-_ (4789, vxlan6) \
-_ (48879, vxlan_gbp) \
-_ (4790, VXLAN_GPE) \
-_ (6633, vpath_3) \
-_ (6081, geneve) \
-_ (53053, dns_reply)
-
-
-#define foreach_udp6_dst_port \
-_ (53, dns6) \
-_ (547, dhcpv6_to_server) \
-_ (546, dhcpv6_to_client) \
-_ (2152, GTPU6) \
-_ (3784, bfd6) \
-_ (3785, bfd_echo6) \
-_ (4341, lisp_gpe6) \
-_ (4342, lisp_cp6) \
-_ (48879, vxlan6_gbp) \
-_ (4790, VXLAN6_GPE) \
-_ (6633, vpath6_3) \
-_ (6081, geneve6) \
-_ (8138, BIER) \
-_ (53053, dns_reply6)
-
-typedef enum
-{
-#define _(n,f) UDP_DST_PORT_##f = n,
- foreach_udp4_dst_port foreach_udp6_dst_port
-#undef _
-} udp_dst_port_t;
-
-typedef enum
-{
-#define _(n,f) UDP6_DST_PORT_##f = n,
- foreach_udp6_dst_port
-#undef _
-} udp6_dst_port_t;
-
typedef struct
{
/* Name (a c string). */
* Per-worker thread udp connection pools used with session layer
*/
udp_connection_t **connections;
- u32 *connection_peekers;
- clib_spinlock_t *peekers_readers_locks;
- clib_spinlock_t *peekers_write_locks;
udp_connection_t *listener_pool;
u16 default_mtu;
+ u16 msg_id_base;
+
+ u8 icmp_send_unreachable_disabled;
} udp_main_t;
extern udp_main_t udp_main;
extern vlib_node_registration_t udp4_local_node;
extern vlib_node_registration_t udp6_local_node;
+void udp_add_dst_port (udp_main_t * um, udp_dst_port_t dst_port,
+ char *dst_port_name, u8 is_ip4);
+
always_inline udp_connection_t *
udp_connection_get (u32 conn_index, u32 thread_index)
{
}
always_inline udp_connection_t *
-udp_get_connection_from_transport (transport_connection_t * tc)
+udp_connection_from_transport (transport_connection_t * tc)
{
return ((udp_connection_t *) tc);
}
-always_inline u32
-udp_connection_index (udp_connection_t * uc)
-{
- return (uc - udp_main.connections[uc->c_thread_index]);
-}
-
+void udp_connection_free (udp_connection_t * uc);
udp_connection_t *udp_connection_alloc (u32 thread_index);
-/**
- * Acquires a lock that blocks a connection pool from expanding.
- */
-always_inline void
-udp_pool_add_peeker (u32 thread_index)
-{
- if (thread_index != vlib_get_thread_index ())
- return;
- clib_spinlock_lock_if_init (&udp_main.peekers_readers_locks[thread_index]);
- udp_main.connection_peekers[thread_index] += 1;
- if (udp_main.connection_peekers[thread_index] == 1)
- clib_spinlock_lock_if_init (&udp_main.peekers_write_locks[thread_index]);
- clib_spinlock_unlock_if_init (&udp_main.peekers_readers_locks
- [thread_index]);
-}
-
-always_inline void
-udp_pool_remove_peeker (u32 thread_index)
-{
- if (thread_index != vlib_get_thread_index ())
- return;
- ASSERT (udp_main.connection_peekers[thread_index] > 0);
- clib_spinlock_lock_if_init (&udp_main.peekers_readers_locks[thread_index]);
- udp_main.connection_peekers[thread_index] -= 1;
- if (udp_main.connection_peekers[thread_index] == 0)
- clib_spinlock_unlock_if_init (&udp_main.peekers_write_locks
- [thread_index]);
- clib_spinlock_unlock_if_init (&udp_main.peekers_readers_locks
- [thread_index]);
-}
-
always_inline udp_connection_t *
udp_connection_clone_safe (u32 connection_index, u32 thread_index)
{
+ u32 current_thread_index = vlib_get_thread_index (), new_index;
udp_connection_t *old_c, *new_c;
- u32 current_thread_index = vlib_get_thread_index ();
- new_c = udp_connection_alloc (current_thread_index);
- /* If during the memcpy pool is reallocated AND the memory allocator
- * decides to give the old chunk of memory to somebody in a hurry to
- * scribble something on it, we have a problem. So add this thread as
- * a session pool peeker.
- */
- udp_pool_add_peeker (thread_index);
+ new_c = udp_connection_alloc (current_thread_index);
+ new_index = new_c->c_c_index;
+ /* Connection pool always realloced with barrier */
old_c = udp_main.connections[thread_index] + connection_index;
clib_memcpy_fast (new_c, old_c, sizeof (*new_c));
old_c->flags |= UDP_CONN_F_MIGRATED;
- udp_pool_remove_peeker (thread_index);
new_c->c_thread_index = current_thread_index;
- new_c->c_c_index = udp_connection_index (new_c);
+ new_c->c_c_index = new_index;
new_c->c_fib_index = old_c->c_fib_index;
+ /* Assume cloned sessions don't need lock */
+ new_c->rx_lock = 0;
return new_c;
}
format_function_t format_udp_rx_trace;
format_function_t format_udp_connection;
unformat_function_t unformat_udp_header;
+unformat_function_t unformat_udp_port;
-void udp_add_dst_port (udp_main_t * um, udp_dst_port_t dst_port,
- char *dst_port_name, u8 is_ip4);
-void udp_register_dst_port (vlib_main_t * vm,
- udp_dst_port_t dst_port,
- u32 node_index, u8 is_ip4);
-void udp_unregister_dst_port (vlib_main_t * vm,
- udp_dst_port_t dst_port, u8 is_ip4);
-bool udp_is_valid_dst_port (udp_dst_port_t dst_port, u8 is_ip4);
void udp_connection_share_port (u16 lcl_port, u8 is_ip4);
void udp_punt_unknown (vlib_main_t * vm, u8 is_ip4, u8 is_add);
-always_inline void *
-vlib_buffer_push_udp (vlib_buffer_t * b, u16 sp, u16 dp, u8 offload_csum)
-{
- udp_header_t *uh;
- u16 udp_len = sizeof (udp_header_t) + b->current_length;
- if (PREDICT_FALSE (b->flags & VLIB_BUFFER_TOTAL_LENGTH_VALID))
- udp_len += b->total_length_not_including_first_buffer;
-
- uh = vlib_buffer_push_uninit (b, sizeof (udp_header_t));
- uh->src_port = sp;
- uh->dst_port = dp;
- uh->checksum = 0;
- uh->length = clib_host_to_net_u16 (udp_len);
- if (offload_csum)
- b->flags |= VNET_BUFFER_F_OFFLOAD_UDP_CKSUM;
- vnet_buffer (b)->l4_hdr_offset = (u8 *) uh - b->data;
- b->flags |= VNET_BUFFER_F_L4_HDR_OFFSET_VALID;
- return uh;
-}
-
-always_inline void
-ip_udp_fixup_one (vlib_main_t * vm, vlib_buffer_t * b0, u8 is_ip4)
-{
- u16 new_l0;
- udp_header_t *udp0;
-
- if (is_ip4)
- {
- ip4_header_t *ip0;
- ip_csum_t sum0;
- u16 old_l0 = 0;
-
- ip0 = vlib_buffer_get_current (b0);
-
- /* fix the <bleep>ing outer-IP checksum */
- sum0 = ip0->checksum;
- /* old_l0 always 0, see the rewrite setup */
- new_l0 = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0));
-
- sum0 = ip_csum_update (sum0, old_l0, new_l0, ip4_header_t,
- length /* changed member */ );
- ip0->checksum = ip_csum_fold (sum0);
- ip0->length = new_l0;
-
- /* Fix UDP length */
- udp0 = (udp_header_t *) (ip0 + 1);
- new_l0 = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0)
- - sizeof (*ip0));
- udp0->length = new_l0;
- }
- else
- {
- ip6_header_t *ip0;
- int bogus0;
-
- ip0 = vlib_buffer_get_current (b0);
-
- new_l0 = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0)
- - sizeof (*ip0));
- ip0->payload_length = new_l0;
-
- /* Fix UDP length */
- udp0 = (udp_header_t *) (ip0 + 1);
- udp0->length = new_l0;
-
- udp0->checksum =
- ip6_tcp_udp_icmp_compute_checksum (vm, b0, ip0, &bogus0);
- ASSERT (bogus0 == 0);
-
- if (udp0->checksum == 0)
- udp0->checksum = 0xffff;
- }
-}
-
-always_inline void
-ip_udp_encap_one (vlib_main_t * vm, vlib_buffer_t * b0, u8 * ec0, word ec_len,
- u8 is_ip4)
-{
- vlib_buffer_advance (b0, -ec_len);
-
- if (is_ip4)
- {
- ip4_header_t *ip0;
-
- ip0 = vlib_buffer_get_current (b0);
-
- /* Apply the encap string. */
- clib_memcpy_fast (ip0, ec0, ec_len);
- ip_udp_fixup_one (vm, b0, 1);
- }
- else
- {
- ip6_header_t *ip0;
-
- ip0 = vlib_buffer_get_current (b0);
-
- /* Apply the encap string. */
- clib_memcpy_fast (ip0, ec0, ec_len);
- ip_udp_fixup_one (vm, b0, 0);
- }
-}
-
-always_inline void
-ip_udp_encap_two (vlib_main_t * vm, vlib_buffer_t * b0, vlib_buffer_t * b1,
- u8 * ec0, u8 * ec1, word ec_len, u8 is_v4)
-{
- u16 new_l0, new_l1;
- udp_header_t *udp0, *udp1;
-
- ASSERT (_vec_len (ec0) == _vec_len (ec1));
-
- vlib_buffer_advance (b0, -ec_len);
- vlib_buffer_advance (b1, -ec_len);
-
- if (is_v4)
- {
- ip4_header_t *ip0, *ip1;
- ip_csum_t sum0, sum1;
- u16 old_l0 = 0, old_l1 = 0;
-
- ip0 = vlib_buffer_get_current (b0);
- ip1 = vlib_buffer_get_current (b1);
-
- /* Apply the encap string */
- clib_memcpy_fast (ip0, ec0, ec_len);
- clib_memcpy_fast (ip1, ec1, ec_len);
-
- /* fix the <bleep>ing outer-IP checksum */
- sum0 = ip0->checksum;
- sum1 = ip1->checksum;
-
- /* old_l0 always 0, see the rewrite setup */
- new_l0 = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0));
- new_l1 = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b1));
-
- sum0 = ip_csum_update (sum0, old_l0, new_l0, ip4_header_t,
- length /* changed member */ );
- sum1 = ip_csum_update (sum1, old_l1, new_l1, ip4_header_t,
- length /* changed member */ );
-
- ip0->checksum = ip_csum_fold (sum0);
- ip1->checksum = ip_csum_fold (sum1);
-
- ip0->length = new_l0;
- ip1->length = new_l1;
-
- /* Fix UDP length */
- udp0 = (udp_header_t *) (ip0 + 1);
- udp1 = (udp_header_t *) (ip1 + 1);
-
- new_l0 =
- clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0) -
- sizeof (*ip0));
- new_l1 =
- clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b1) -
- sizeof (*ip1));
- udp0->length = new_l0;
- udp1->length = new_l1;
- }
- else
- {
- ip6_header_t *ip0, *ip1;
- int bogus0, bogus1;
-
- ip0 = vlib_buffer_get_current (b0);
- ip1 = vlib_buffer_get_current (b1);
-
- /* Apply the encap string. */
- clib_memcpy_fast (ip0, ec0, ec_len);
- clib_memcpy_fast (ip1, ec1, ec_len);
-
- new_l0 = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0)
- - sizeof (*ip0));
- new_l1 = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b1)
- - sizeof (*ip1));
- ip0->payload_length = new_l0;
- ip1->payload_length = new_l1;
-
- /* Fix UDP length */
- udp0 = (udp_header_t *) (ip0 + 1);
- udp1 = (udp_header_t *) (ip1 + 1);
-
- udp0->length = new_l0;
- udp1->length = new_l1;
-
- udp0->checksum =
- ip6_tcp_udp_icmp_compute_checksum (vm, b0, ip0, &bogus0);
- udp1->checksum =
- ip6_tcp_udp_icmp_compute_checksum (vm, b1, ip1, &bogus1);
- ASSERT (bogus0 == 0);
- ASSERT (bogus1 == 0);
-
- if (udp0->checksum == 0)
- udp0->checksum = 0xffff;
- if (udp1->checksum == 0)
- udp1->checksum = 0xffff;
- }
-}
-
/*
* fd.io coding-style-patch-verification: ON
*
Code Review / vpp.git / blobdiff