#include <vnet/ip/ip.h>
#include <vnet/ip/ip4.h>
#include <vnet/plugin/plugin.h>
-#include <vlibapi/api.h>
#include <snat/snat.h>
+#include <snat/snat_ipfix_logging.h>
+#include <snat/snat_det.h>
+#include <vnet/fib/fib_table.h>
+#include <vnet/fib/ip4_fib.h>
#include <vlibapi/api.h>
#include <vlibmemory/api.h>
#include <vlibsocket/api.h>
+#include <vpp/app/version.h>
snat_main_t snat_main;
#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
+#define REPLY_MSG_ID_BASE sm->msg_id_base
+#include <vlibapi/api_helper_macros.h>
+
/* Get the API version number */
#define vl_api_version(n,v) static u32 api_version=(v);
#include <snat/snat_all_api_h.h>
vec_free (s); \
return handle;
-/*
- * A handy macro to set up a message reply.
- * Assumes that the following variables are available:
- * mp - pointer to request message
- * rmp - pointer to reply message type
- * rv - return value
- */
-
-#define REPLY_MACRO(t) \
-do { \
- unix_shared_memory_queue_t * q = \
- vl_api_client_index_to_input_queue (mp->client_index); \
- if (!q) \
- return; \
- \
- rmp = vl_msg_api_alloc (sizeof (*rmp)); \
- rmp->_vl_msg_id = ntohs((t)+sm->msg_id_base); \
- rmp->context = mp->context; \
- rmp->retval = ntohl(rv); \
- \
- vl_msg_api_send_shmem (q, (u8 *)&rmp); \
-} while(0);
-
-#define REPLY_MACRO2(t, body) \
-do { \
- unix_shared_memory_queue_t * q = \
- vl_api_client_index_to_input_queue (mp->client_index); \
- if (!q) \
- return; \
- \
- rmp = vl_msg_api_alloc (sizeof (*rmp)); \
- rmp->_vl_msg_id = ntohs((t)+sm->msg_id_base); \
- rmp->context = mp->context; \
- rmp->retval = ntohl(rv); \
- do {body;} while (0); \
- vl_msg_api_send_shmem (q, (u8 *)&rmp); \
-} while(0);
-
-
/* Hook up input features */
VNET_FEATURE_INIT (ip4_snat_in2out, static) = {
.arc_name = "ip4-unicast",
.node_name = "snat-out2in",
.runs_before = VNET_FEATURES ("ip4-lookup"),
};
+VNET_FEATURE_INIT (ip4_snat_det_in2out, static) = {
+ .arc_name = "ip4-unicast",
+ .node_name = "snat-det-in2out",
+ .runs_before = VNET_FEATURES ("snat-det-out2in"),
+};
+VNET_FEATURE_INIT (ip4_snat_det_out2in, static) = {
+ .arc_name = "ip4-unicast",
+ .node_name = "snat-det-out2in",
+ .runs_before = VNET_FEATURES ("ip4-lookup"),
+};
VNET_FEATURE_INIT (ip4_snat_in2out_worker_handoff, static) = {
.arc_name = "ip4-unicast",
.node_name = "snat-in2out-worker-handoff",
.runs_before = VNET_FEATURES ("ip4-lookup"),
};
+/* *INDENT-OFF* */
+VLIB_PLUGIN_REGISTER () = {
+ .version = VPP_BUILD_VER,
+ .description = "Network Address Translation",
+};
+/* *INDENT-ON* */
-/*
- * This routine exists to convince the vlib plugin framework that
- * we haven't accidentally copied a random .dll into the plugin directory.
+/**
+ * @brief Add/del NAT address to FIB.
+ *
+ * Add the external NAT address to the FIB as receive entries. This ensures
+ * that VPP will reply to ARP for this address and we don't need to enable
+ * proxy ARP on the outside interface.
*
- * Also collects global variable pointers passed from the vpp engine
+ * @param addr IPv4 address.
+ * @param plen address prefix length
+ * @param sw_if_index Interface.
+ * @param is_add If 0 delete, otherwise add.
*/
-
-clib_error_t *
-vlib_plugin_register (vlib_main_t * vm, vnet_plugin_handoff_t * h,
- int from_early_init)
+void
+snat_add_del_addr_to_fib (ip4_address_t * addr, u8 p_len, u32 sw_if_index,
+ int is_add)
{
- snat_main_t * sm = &snat_main;
- clib_error_t * error = 0;
-
- sm->vlib_main = vm;
- sm->vnet_main = h->vnet_main;
- sm->ethernet_main = h->ethernet_main;
+ fib_prefix_t prefix = {
+ .fp_len = p_len,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr = {
+ .ip4.as_u32 = addr->as_u32,
+ },
+ };
+ u32 fib_index = ip4_fib_table_get_index_for_sw_if_index(sw_if_index);
- return error;
+ if (is_add)
+ fib_table_entry_update_one_path(fib_index,
+ &prefix,
+ FIB_SOURCE_PLUGIN_HI,
+ (FIB_ENTRY_FLAG_CONNECTED |
+ FIB_ENTRY_FLAG_LOCAL |
+ FIB_ENTRY_FLAG_EXCLUSIVE),
+ FIB_PROTOCOL_IP4,
+ NULL,
+ sw_if_index,
+ ~0,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ else
+ fib_table_entry_delete(fib_index,
+ &prefix,
+ FIB_SOURCE_PLUGIN_HI);
}
-/*$$$$$ move to an installed header file */
-#if (1 || CLIB_DEBUG > 0) /* "trust, but verify" */
-
-#define VALIDATE_SW_IF_INDEX(mp) \
- do { u32 __sw_if_index = ntohl(mp->sw_if_index); \
- vnet_main_t *__vnm = vnet_get_main(); \
- if (pool_is_free_index(__vnm->interface_main.sw_interfaces, \
- __sw_if_index)) { \
- rv = VNET_API_ERROR_INVALID_SW_IF_INDEX; \
- goto bad_sw_if_index; \
- } \
-} while(0);
-
-#define BAD_SW_IF_INDEX_LABEL \
-do { \
-bad_sw_if_index: \
- ; \
-} while (0);
-
-#define VALIDATE_RX_SW_IF_INDEX(mp) \
- do { u32 __rx_sw_if_index = ntohl(mp->rx_sw_if_index); \
- vnet_main_t *__vnm = vnet_get_main(); \
- if (pool_is_free_index(__vnm->interface_main.sw_interfaces, \
- __rx_sw_if_index)) { \
- rv = VNET_API_ERROR_INVALID_SW_IF_INDEX; \
- goto bad_rx_sw_if_index; \
- } \
-} while(0);
-
-#define BAD_RX_SW_IF_INDEX_LABEL \
-do { \
-bad_rx_sw_if_index: \
- ; \
-} while (0);
-
-#define VALIDATE_TX_SW_IF_INDEX(mp) \
- do { u32 __tx_sw_if_index = ntohl(mp->tx_sw_if_index); \
- vnet_main_t *__vnm = vnet_get_main(); \
- if (pool_is_free_index(__vnm->interface_main.sw_interfaces, \
- __tx_sw_if_index)) { \
- rv = VNET_API_ERROR_INVALID_SW_IF_INDEX; \
- goto bad_tx_sw_if_index; \
- } \
-} while(0);
-
-#define BAD_TX_SW_IF_INDEX_LABEL \
-do { \
-bad_tx_sw_if_index: \
- ; \
-} while (0);
-
-#else
-
-#define VALIDATE_SW_IF_INDEX(mp)
-#define BAD_SW_IF_INDEX_LABEL
-#define VALIDATE_RX_SW_IF_INDEX(mp)
-#define BAD_RX_SW_IF_INDEX_LABEL
-#define VALIDATE_TX_SW_IF_INDEX(mp)
-#define BAD_TX_SW_IF_INDEX_LABEL
-
-#endif /* CLIB_DEBUG > 0 */
-
-void snat_add_address (snat_main_t *sm, ip4_address_t *addr)
+void snat_add_address (snat_main_t *sm, ip4_address_t *addr, u32 vrf_id)
{
snat_address_t * ap;
+ snat_interface_t *i;
+
+ if (vrf_id != ~0)
+ sm->vrf_mode = 1;
/* Check if address already exists */
vec_foreach (ap, sm->addresses)
vec_add2 (sm->addresses, ap, 1);
ap->addr = *addr;
- clib_bitmap_alloc (ap->busy_port_bitmap, 65535);
+ ap->fib_index = ip4_fib_index_from_table_id(vrf_id);
+#define _(N, i, n, s) \
+ clib_bitmap_alloc (ap->busy_##n##_port_bitmap, 65535);
+ foreach_snat_protocol
+#undef _
+
+ /* Add external address to FIB */
+ pool_foreach (i, sm->interfaces,
+ ({
+ if (i->is_inside)
+ continue;
+
+ snat_add_del_addr_to_fib(addr, 32, i->sw_if_index, 1);
+ break;
+ }));
}
static int is_snat_address_used_in_static_mapping (snat_main_t *sm,
return 0;
}
-int snat_del_address (snat_main_t *sm, ip4_address_t addr)
-{
- snat_address_t *a = 0;
- snat_session_t *ses;
- u32 *ses_to_be_removed = 0, *ses_index;
- clib_bihash_kv_8_8_t kv, value;
- snat_user_key_t user_key;
- snat_user_t *u;
- snat_main_per_thread_data_t *tsm;
-
- int i;
-
- /* Find SNAT address */
- for (i=0; i < vec_len (sm->addresses); i++)
- {
- if (sm->addresses[i].addr.as_u32 == addr.as_u32)
- {
- a = sm->addresses + i;
- break;
- }
- }
- if (!a)
- return VNET_API_ERROR_NO_SUCH_ENTRY;
-
- /* Check if address is used in some static mapping */
- if (is_snat_address_used_in_static_mapping(sm, addr))
- {
- clib_warning ("address used in static mapping");
- return VNET_API_ERROR_UNSPECIFIED;
- }
-
- /* Delete sessions using address */
- if (a->busy_ports)
- {
- vec_foreach (tsm, sm->per_thread_data)
- {
- pool_foreach (ses, tsm->sessions, ({
- if (ses->out2in.addr.as_u32 == addr.as_u32)
- {
- vec_add1 (ses_to_be_removed, ses - tsm->sessions);
- kv.key = ses->in2out.as_u64;
- clib_bihash_add_del_8_8 (&sm->in2out, &kv, 0);
- kv.key = ses->out2in.as_u64;
- clib_bihash_add_del_8_8 (&sm->out2in, &kv, 0);
- clib_dlist_remove (tsm->list_pool, ses->per_user_index);
- user_key.addr = ses->in2out.addr;
- user_key.fib_index = ses->in2out.fib_index;
- kv.key = user_key.as_u64;
- if (!clib_bihash_search_8_8 (&sm->user_hash, &kv, &value))
- {
- u = pool_elt_at_index (tsm->users, value.value);
- u->nsessions--;
- }
- }
- }));
-
- vec_foreach (ses_index, ses_to_be_removed)
- pool_put_index (tsm->sessions, ses_index[0]);
-
- vec_free (ses_to_be_removed);
- }
- }
-
- vec_del1 (sm->addresses, i);
-
- return 0;
-}
-
static void increment_v4_address (ip4_address_t * a)
{
u32 v;
a->as_u32 = clib_host_to_net_u32(v);
}
+static void
+snat_add_static_mapping_when_resolved (snat_main_t * sm,
+ ip4_address_t l_addr,
+ u16 l_port,
+ u32 sw_if_index,
+ u16 e_port,
+ u32 vrf_id,
+ snat_protocol_t proto,
+ int addr_only,
+ int is_add)
+{
+ snat_static_map_resolve_t *rp;
+
+ vec_add2 (sm->to_resolve, rp, 1);
+ rp->l_addr.as_u32 = l_addr.as_u32;
+ rp->l_port = l_port;
+ rp->sw_if_index = sw_if_index;
+ rp->e_port = e_port;
+ rp->vrf_id = vrf_id;
+ rp->proto = proto;
+ rp->addr_only = addr_only;
+ rp->is_add = is_add;
+}
+
/**
* @brief Add static mapping.
*
* @param e_port External port number.
* @param vrf_id VRF ID.
* @param addr_only If 0 address port and pair mapping, otherwise address only.
+ * @param sw_if_index External port instead of specific IP address.
* @param is_add If 0 delete static mapping, otherwise add.
*
* @returns
*/
int snat_add_static_mapping(ip4_address_t l_addr, ip4_address_t e_addr,
u16 l_port, u16 e_port, u32 vrf_id, int addr_only,
- int is_add)
+ u32 sw_if_index, snat_protocol_t proto, int is_add)
{
snat_main_t * sm = &snat_main;
snat_static_mapping_t *m;
- snat_static_mapping_key_t m_key;
+ snat_session_key_t m_key;
clib_bihash_kv_8_8_t kv, value;
snat_address_t *a = 0;
u32 fib_index = ~0;
uword * p;
+ snat_interface_t *interface;
int i;
- /* If outside FIB index is not resolved yet */
- if (sm->outside_fib_index == ~0)
+ /* If the external address is a specific interface address */
+ if (sw_if_index != ~0)
{
- p = hash_get (sm->ip4_main->fib_index_by_table_id, sm->outside_vrf_id);
- if (!p)
- return VNET_API_ERROR_NO_SUCH_FIB;
- sm->outside_fib_index = p[0];
+ ip4_address_t * first_int_addr;
+
+ /* Might be already set... */
+ first_int_addr = ip4_interface_first_address
+ (sm->ip4_main, sw_if_index, 0 /* just want the address*/);
+
+ /* DHCP resolution required? */
+ if (first_int_addr == 0)
+ {
+ snat_add_static_mapping_when_resolved
+ (sm, l_addr, l_port, sw_if_index, e_port, vrf_id, proto,
+ addr_only, is_add);
+ return 0;
+ }
+ else
+ e_addr.as_u32 = first_int_addr->as_u32;
}
m_key.addr = e_addr;
m_key.port = addr_only ? 0 : e_port;
+ m_key.protocol = addr_only ? 0 : proto;
m_key.fib_index = sm->outside_fib_index;
kv.key = m_key.as_u64;
if (clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value))
/* If not specified use inside VRF id from SNAT plugin startup config */
else
{
- if (sm->inside_fib_index == ~0)
- {
- p = hash_get (sm->ip4_main->fib_index_by_table_id, sm->inside_vrf_id);
- if (!p)
- return VNET_API_ERROR_NO_SUCH_FIB;
- fib_index = p[0];
- sm->inside_fib_index = fib_index;
- }
- else
- fib_index = sm->inside_fib_index;
-
+ fib_index = sm->inside_fib_index;
vrf_id = sm->inside_vrf_id;
}
{
a = sm->addresses + i;
/* External port must be unused */
- if (clib_bitmap_get_no_check (a->busy_port_bitmap, e_port))
- return VNET_API_ERROR_INVALID_VALUE;
- clib_bitmap_set_no_check (a->busy_port_bitmap, e_port, 1);
- if (e_port > 1024)
- a->busy_ports++;
-
+ switch (proto)
+ {
+#define _(N, j, n, s) \
+ case SNAT_PROTOCOL_##N: \
+ if (clib_bitmap_get_no_check (a->busy_##n##_port_bitmap, e_port)) \
+ return VNET_API_ERROR_INVALID_VALUE; \
+ clib_bitmap_set_no_check (a->busy_##n##_port_bitmap, e_port, 1); \
+ if (e_port > 1024) \
+ a->busy_##n##_ports++; \
+ break;
+ foreach_snat_protocol
+#undef _
+ default:
+ clib_warning("unknown_protocol");
+ return VNET_API_ERROR_INVALID_VALUE_2;
+ }
break;
}
}
{
m->local_port = l_port;
m->external_port = e_port;
+ m->proto = proto;
}
m_key.addr = m->local_addr;
m_key.port = m->local_port;
+ m_key.protocol = m->proto;
m_key.fib_index = m->fib_index;
kv.key = m_key.as_u64;
kv.value = m - sm->static_mappings;
if (sm->workers)
{
snat_user_key_t w_key0;
- snat_static_mapping_key_t w_key1;
+ snat_worker_key_t w_key1;
w_key0.addr = m->local_addr;
w_key0.fib_index = m->fib_index;
if (sm->addresses[i].addr.as_u32 == e_addr.as_u32)
{
a = sm->addresses + i;
- clib_bitmap_set_no_check (a->busy_port_bitmap, e_port, 0);
- a->busy_ports--;
-
+ switch (proto)
+ {
+#define _(N, j, n, s) \
+ case SNAT_PROTOCOL_##N: \
+ clib_bitmap_set_no_check (a->busy_##n##_port_bitmap, e_port, 0); \
+ if (e_port > 1024) \
+ a->busy_##n##_ports--; \
+ break;
+ foreach_snat_protocol
+#undef _
+ default:
+ clib_warning("unknown_protocol");
+ return VNET_API_ERROR_INVALID_VALUE_2;
+ }
break;
}
}
m_key.addr = m->local_addr;
m_key.port = m->local_port;
+ m_key.protocol = m->proto;
m_key.fib_index = m->fib_index;
kv.key = m_key.as_u64;
clib_bihash_add_del_8_8(&sm->static_mapping_by_local, &kv, 0);
continue;
}
+ /* log NAT event */
+ snat_ipfix_logging_nat44_ses_delete(s->in2out.addr.as_u32,
+ s->out2in.addr.as_u32,
+ s->in2out.protocol,
+ s->in2out.port,
+ s->out2in.port,
+ s->in2out.fib_index);
+
value.key = s->in2out.as_u64;
clib_bihash_add_del_8_8 (&sm->in2out, &value, 0);
value.key = s->out2in.as_u64;
pool_put (sm->static_mappings, m);
}
+ if (!addr_only)
+ return 0;
+
+ /* Add/delete external address to FIB */
+ pool_foreach (interface, sm->interfaces,
+ ({
+ if (interface->is_inside)
+ continue;
+
+ snat_add_del_addr_to_fib(&e_addr, 32, interface->sw_if_index, is_add);
+ break;
+ }));
+
+ return 0;
+}
+
+int snat_del_address (snat_main_t *sm, ip4_address_t addr, u8 delete_sm)
+{
+ snat_address_t *a = 0;
+ snat_session_t *ses;
+ u32 *ses_to_be_removed = 0, *ses_index;
+ clib_bihash_kv_8_8_t kv, value;
+ snat_user_key_t user_key;
+ snat_user_t *u;
+ snat_main_per_thread_data_t *tsm;
+ snat_static_mapping_t *m;
+ snat_interface_t *interface;
+ int i;
+
+ /* Find SNAT address */
+ for (i=0; i < vec_len (sm->addresses); i++)
+ {
+ if (sm->addresses[i].addr.as_u32 == addr.as_u32)
+ {
+ a = sm->addresses + i;
+ break;
+ }
+ }
+ if (!a)
+ return VNET_API_ERROR_NO_SUCH_ENTRY;
+
+ if (delete_sm)
+ {
+ pool_foreach (m, sm->static_mappings,
+ ({
+ if (m->external_addr.as_u32 == addr.as_u32)
+ (void) snat_add_static_mapping (m->local_addr, m->external_addr,
+ m->local_port, m->external_port,
+ m->vrf_id, m->addr_only, ~0,
+ m->proto, 0);
+ }));
+ }
+ else
+ {
+ /* Check if address is used in some static mapping */
+ if (is_snat_address_used_in_static_mapping(sm, addr))
+ {
+ clib_warning ("address used in static mapping");
+ return VNET_API_ERROR_UNSPECIFIED;
+ }
+ }
+
+ /* Delete sessions using address */
+ if (a->busy_tcp_ports || a->busy_udp_ports || a->busy_icmp_ports)
+ {
+ vec_foreach (tsm, sm->per_thread_data)
+ {
+ pool_foreach (ses, tsm->sessions, ({
+ if (ses->out2in.addr.as_u32 == addr.as_u32)
+ {
+ /* log NAT event */
+ snat_ipfix_logging_nat44_ses_delete(ses->in2out.addr.as_u32,
+ ses->out2in.addr.as_u32,
+ ses->in2out.protocol,
+ ses->in2out.port,
+ ses->out2in.port,
+ ses->in2out.fib_index);
+ vec_add1 (ses_to_be_removed, ses - tsm->sessions);
+ kv.key = ses->in2out.as_u64;
+ clib_bihash_add_del_8_8 (&sm->in2out, &kv, 0);
+ kv.key = ses->out2in.as_u64;
+ clib_bihash_add_del_8_8 (&sm->out2in, &kv, 0);
+ clib_dlist_remove (tsm->list_pool, ses->per_user_index);
+ user_key.addr = ses->in2out.addr;
+ user_key.fib_index = ses->in2out.fib_index;
+ kv.key = user_key.as_u64;
+ if (!clib_bihash_search_8_8 (&sm->user_hash, &kv, &value))
+ {
+ u = pool_elt_at_index (tsm->users, value.value);
+ u->nsessions--;
+ }
+ }
+ }));
+
+ vec_foreach (ses_index, ses_to_be_removed)
+ pool_put_index (tsm->sessions, ses_index[0]);
+
+ vec_free (ses_to_be_removed);
+ }
+ }
+
+ vec_del1 (sm->addresses, i);
+
+ /* Delete external address from FIB */
+ pool_foreach (interface, sm->interfaces,
+ ({
+ if (interface->is_inside)
+ continue;
+
+ snat_add_del_addr_to_fib(&addr, 32, interface->sw_if_index, 0);
+ break;
+ }));
+
return 0;
}
snat_main_t *sm = &snat_main;
snat_interface_t *i;
const char * feature_name;
+ snat_address_t * ap;
+ snat_static_mapping_t * m;
+ snat_det_map_t * dm;
if (sm->static_mapping_only && !(sm->static_mapping_connection_tracking))
feature_name = is_inside ? "snat-in2out-fast" : "snat-out2in-fast";
else
{
- if (sm->num_workers > 1)
+ if (sm->num_workers > 1 && !sm->deterministic)
feature_name = is_inside ? "snat-in2out-worker-handoff" : "snat-out2in-worker-handoff";
+ else if (sm->deterministic)
+ feature_name = is_inside ? "snat-det-in2out" : "snat-det-out2in";
else
feature_name = is_inside ? "snat-in2out" : "snat-out2in";
}
vnet_feature_enable_disable ("ip4-unicast", feature_name, sw_if_index,
!is_del, 0, 0);
- if (sm->fq_in2out_index == ~0)
- sm->fq_in2out_index = vlib_frame_queue_main_init (snat_in2out_node.index, 0);
+ if (sm->fq_in2out_index == ~0 && !sm->deterministic && sm->num_workers > 1)
+ sm->fq_in2out_index = vlib_frame_queue_main_init (sm->in2out_node_index, 0);
- if (sm->fq_out2in_index == ~0)
- sm->fq_out2in_index = vlib_frame_queue_main_init (snat_out2in_node.index, 0);
+ if (sm->fq_out2in_index == ~0 && !sm->deterministic && sm->num_workers > 1)
+ sm->fq_out2in_index = vlib_frame_queue_main_init (sm->out2in_node_index, 0);
pool_foreach (i, sm->interfaces,
({
else
return VNET_API_ERROR_VALUE_EXIST;
- return 0;
+ goto fib;
}
}));
i->sw_if_index = sw_if_index;
i->is_inside = is_inside;
+ /* Add/delete external addresses to FIB */
+fib:
+ if (is_inside)
+ return 0;
+
+ vec_foreach (ap, sm->addresses)
+ snat_add_del_addr_to_fib(&ap->addr, 32, sw_if_index, !is_del);
+
+ pool_foreach (m, sm->static_mappings,
+ ({
+ if (!(m->addr_only))
+ continue;
+
+ snat_add_del_addr_to_fib(&m->external_addr, 32, sw_if_index, !is_del);
+ }));
+
+ pool_foreach (dm, sm->det_maps,
+ ({
+ snat_add_del_addr_to_fib(&dm->out_addr, dm->out_plen, sw_if_index, !is_del);
+ }));
+
return 0;
}
vl_api_snat_add_address_range_reply_t * rmp;
ip4_address_t this_addr;
u32 start_host_order, end_host_order;
+ u32 vrf_id;
int i, count;
int rv = 0;
u32 * tmp;
count = (end_host_order - start_host_order) + 1;
+ vrf_id = clib_host_to_net_u32 (mp->vrf_id);
+
if (count > 1024)
clib_warning ("%U - %U, %d addresses...",
format_ip4_address, mp->first_ip_address,
for (i = 0; i < count; i++)
{
if (mp->is_add)
- snat_add_address (sm, &this_addr);
+ snat_add_address (sm, &this_addr, vrf_id);
else
- rv = snat_del_address (sm, this_addr);
+ rv = snat_del_address (sm, this_addr, 0);
if (rv)
goto send_reply;
rmp->_vl_msg_id = ntohs (VL_API_SNAT_ADDRESS_DETAILS+sm->msg_id_base);
rmp->is_ip4 = 1;
clib_memcpy (rmp->ip_address, &(a->addr), 4);
+ if (a->fib_index != ~0)
+ rmp->vrf_id = ntohl(ip4_fib_get(a->fib_index)->table_id);
+ else
+ rmp->vrf_id = ~0;
rmp->context = context;
vl_msg_api_send_shmem (q, (u8 *) & rmp);
vl_api_snat_add_static_mapping_reply_t * rmp;
ip4_address_t local_addr, external_addr;
u16 local_port = 0, external_port = 0;
- u32 vrf_id;
+ u32 vrf_id, external_sw_if_index;
int rv = 0;
+ snat_protocol_t proto;
if (mp->is_ip4 != 1)
{
external_port = clib_net_to_host_u16 (mp->external_port);
}
vrf_id = clib_net_to_host_u32 (mp->vrf_id);
+ external_sw_if_index = clib_net_to_host_u32 (mp->external_sw_if_index);
+ proto = ip_proto_to_snat_proto (mp->protocol);
rv = snat_add_static_mapping(local_addr, external_addr, local_port,
external_port, vrf_id, mp->addr_only,
- mp->is_add);
+ external_sw_if_index, proto, mp->is_add);
send_reply:
REPLY_MACRO (VL_API_SNAT_ADD_ADDRESS_RANGE_REPLY);
u8 * s;
s = format (0, "SCRIPT: snat_add_static_mapping ");
- s = format (s, "local_addr %U external_addr %U ",
+ s = format (s, "protocol %d local_addr %U external_addr %U ",
+ mp->protocol,
format_ip4_address, mp->local_ip_address,
format_ip4_address, mp->external_ip_address);
if (mp->vrf_id != ~0)
s = format (s, "vrf %d", clib_net_to_host_u32 (mp->vrf_id));
+ if (mp->external_sw_if_index != ~0)
+ s = format (s, "external_sw_if_index %d",
+ clib_net_to_host_u32 (mp->external_sw_if_index));
FINISH;
}
clib_memcpy (rmp->external_ip_address, &(m->external_addr), 4);
rmp->local_port = htons (m->local_port);
rmp->external_port = htons (m->external_port);
+ rmp->external_sw_if_index = ~0;
+ rmp->vrf_id = htonl (m->vrf_id);
+ rmp->protocol = snat_proto_to_ip_proto (m->proto);
+ rmp->context = context;
+
+ vl_msg_api_send_shmem (q, (u8 *) & rmp);
+}
+
+static void
+send_snat_static_map_resolve_details
+(snat_static_map_resolve_t * m, unix_shared_memory_queue_t * q, u32 context)
+{
+ vl_api_snat_static_mapping_details_t *rmp;
+ snat_main_t * sm = &snat_main;
+
+ rmp = vl_msg_api_alloc (sizeof (*rmp));
+ memset (rmp, 0, sizeof (*rmp));
+ rmp->_vl_msg_id = ntohs (VL_API_SNAT_STATIC_MAPPING_DETAILS+sm->msg_id_base);
+ rmp->is_ip4 = 1;
+ rmp->addr_only = m->addr_only;
+ clib_memcpy (rmp->local_ip_address, &(m->l_addr), 4);
+ rmp->local_port = htons (m->l_port);
+ rmp->external_port = htons (m->e_port);
+ rmp->external_sw_if_index = htonl (m->sw_if_index);
rmp->vrf_id = htonl (m->vrf_id);
+ rmp->protocol = snat_proto_to_ip_proto (m->proto);
rmp->context = context;
vl_msg_api_send_shmem (q, (u8 *) & rmp);
unix_shared_memory_queue_t *q;
snat_main_t * sm = &snat_main;
snat_static_mapping_t * m;
+ snat_static_map_resolve_t *rp;
+ int j;
q = vl_api_client_index_to_input_queue (mp->client_index);
if (q == 0)
({
send_snat_static_mapping_details (m, q, mp->context);
}));
+
+ for (j = 0; j < vec_len (sm->to_resolve); j++)
+ {
+ rp = sm->to_resolve + j;
+ send_snat_static_map_resolve_details (rp, q, mp->context);
+ }
}
static void *vl_api_snat_static_mapping_dump_t_print
rmp->static_mapping_only = sm->static_mapping_only;
rmp->static_mapping_connection_tracking =
sm->static_mapping_connection_tracking;
+ rmp->deterministic = sm->deterministic;
}));
}
FINISH;
}
-/* List of message types that this plugin understands */
-#define foreach_snat_plugin_api_msg \
-_(SNAT_ADD_ADDRESS_RANGE, snat_add_address_range) \
-_(SNAT_INTERFACE_ADD_DEL_FEATURE, snat_interface_add_del_feature) \
-_(SNAT_ADD_STATIC_MAPPING, snat_add_static_mapping) \
-_(SNAT_CONTROL_PING, snat_control_ping) \
-_(SNAT_STATIC_MAPPING_DUMP, snat_static_mapping_dump) \
-_(SNAT_SHOW_CONFIG, snat_show_config) \
-_(SNAT_ADDRESS_DUMP, snat_address_dump) \
-_(SNAT_INTERFACE_DUMP, snat_interface_dump) \
-_(SNAT_SET_WORKERS, snat_set_workers) \
-_(SNAT_WORKER_DUMP, snat_worker_dump) \
-_(SNAT_ADD_DEL_INTERFACE_ADDR, snat_add_del_interface_addr) \
-_(SNAT_INTERFACE_ADDR_DUMP, snat_interface_addr_dump)
+static void
+vl_api_snat_ipfix_enable_disable_t_handler
+(vl_api_snat_ipfix_enable_disable_t * mp)
+{
+ snat_main_t * sm = &snat_main;
+ vl_api_snat_ipfix_enable_disable_reply_t * rmp;
+ int rv = 0;
-/* Set up the API message handling tables */
-static clib_error_t *
-snat_plugin_api_hookup (vlib_main_t *vm)
+ rv = snat_ipfix_logging_enable_disable(mp->enable,
+ clib_host_to_net_u32 (mp->domain_id),
+ clib_host_to_net_u16 (mp->src_port));
+
+ REPLY_MACRO (VL_API_SNAT_IPFIX_ENABLE_DISABLE_REPLY);
+}
+
+static void *vl_api_snat_ipfix_enable_disable_t_print
+(vl_api_snat_ipfix_enable_disable_t *mp, void * handle)
{
- snat_main_t * sm __attribute__ ((unused)) = &snat_main;
-#define _(N,n) \
- vl_msg_api_set_handlers((VL_API_##N + sm->msg_id_base), \
+ u8 * s;
+
+ s = format (0, "SCRIPT: snat_ipfix_enable_disable ");
+ if (mp->domain_id)
+ s = format (s, "domain %d ", clib_net_to_host_u32 (mp->domain_id));
+ if (mp->src_port)
+ s = format (s, "src_port %d ", clib_net_to_host_u16 (mp->src_port));
+ if (!mp->enable)
+ s = format (s, "disable ");
+
+ FINISH;
+}
+
+static void
+send_snat_user_details
+(snat_user_t * u, unix_shared_memory_queue_t * q, u32 context)
+{
+ vl_api_snat_user_details_t * rmp;
+ snat_main_t * sm = &snat_main;
+ ip4_fib_t * fib_table;
+
+ rmp = vl_msg_api_alloc (sizeof (*rmp));
+ memset (rmp, 0, sizeof (*rmp));
+ rmp->_vl_msg_id = ntohs (VL_API_SNAT_USER_DETAILS+sm->msg_id_base);
+
+ fib_table = ip4_fib_get(u->fib_index);
+ rmp->vrf_id = ntohl (fib_table->table_id);
+
+ rmp->is_ip4 = 1;
+ clib_memcpy(rmp->ip_address, &(u->addr), 4);
+ rmp->nsessions = ntohl (u->nsessions);
+ rmp->nstaticsessions = ntohl (u->nstaticsessions);
+ rmp->context = context;
+
+ vl_msg_api_send_shmem (q, (u8 *) & rmp);
+}
+
+static void
+vl_api_snat_user_dump_t_handler
+(vl_api_snat_user_dump_t * mp)
+{
+ unix_shared_memory_queue_t *q;
+ snat_main_t * sm = &snat_main;
+ snat_main_per_thread_data_t * tsm;
+ snat_user_t * u;
+
+ q = vl_api_client_index_to_input_queue (mp->client_index);
+ if (q == 0)
+ return;
+
+ vec_foreach (tsm, sm->per_thread_data)
+ vec_foreach (u, tsm->users)
+ send_snat_user_details (u, q, mp->context);
+}
+
+static void *vl_api_snat_user_dump_t_print
+(vl_api_snat_user_dump_t *mp, void * handle)
+{
+ u8 *s;
+
+ s = format (0, "SCRIPT: snat_user_dump ");
+
+ FINISH;
+}
+
+static void
+send_snat_user_session_details
+(snat_session_t * s, unix_shared_memory_queue_t * q, u32 context)
+{
+ vl_api_snat_user_session_details_t * rmp;
+ snat_main_t * sm = &snat_main;
+
+ rmp = vl_msg_api_alloc (sizeof(*rmp));
+ memset (rmp, 0, sizeof (*rmp));
+ rmp->_vl_msg_id = ntohs (VL_API_SNAT_USER_SESSION_DETAILS+sm->msg_id_base);
+ rmp->is_ip4 = 1;
+ clib_memcpy(rmp->outside_ip_address, (&s->out2in.addr), 4);
+ rmp->outside_port = s->out2in.port;
+ clib_memcpy(rmp->inside_ip_address, (&s->in2out.addr), 4);
+ rmp->inside_port = s->in2out.port;
+ rmp->protocol = ntohs(snat_proto_to_ip_proto(s->in2out.protocol));
+ rmp->is_static = s->flags & SNAT_SESSION_FLAG_STATIC_MAPPING ? 1 : 0;
+ rmp->last_heard = clib_host_to_net_u64((u64)s->last_heard);
+ rmp->total_bytes = clib_host_to_net_u64(s->total_bytes);
+ rmp->total_pkts = ntohl(s->total_pkts);
+ rmp->context = context;
+
+ vl_msg_api_send_shmem (q, (u8 *) & rmp);
+}
+
+static void
+vl_api_snat_user_session_dump_t_handler
+(vl_api_snat_user_session_dump_t * mp)
+{
+ unix_shared_memory_queue_t *q;
+ snat_main_t * sm = &snat_main;
+ snat_main_per_thread_data_t *tsm;
+ snat_session_t * s;
+ clib_bihash_kv_8_8_t key, value;
+ snat_user_key_t ukey;
+ snat_user_t * u;
+ u32 session_index, head_index, elt_index;
+ dlist_elt_t * head, * elt;
+
+ q = vl_api_client_index_to_input_queue (mp->client_index);
+ if (q == 0)
+ return;
+ if (!mp->is_ip4)
+ return;
+
+ clib_memcpy (&ukey.addr, mp->ip_address, 4);
+ ukey.fib_index = ip4_fib_index_from_table_id (ntohl(mp->vrf_id));
+ key.key = ukey.as_u64;
+ if (!clib_bihash_search_8_8 (&sm->worker_by_in, &key, &value))
+ tsm = vec_elt_at_index (sm->per_thread_data, value.value);
+ else
+ tsm = vec_elt_at_index (sm->per_thread_data, sm->num_workers);
+ if (clib_bihash_search_8_8 (&sm->user_hash, &key, &value))
+ return;
+ u = pool_elt_at_index (tsm->users, value.value);
+ if (!u->nsessions && !u->nstaticsessions)
+ return;
+
+ head_index = u->sessions_per_user_list_head_index;
+ head = pool_elt_at_index (tsm->list_pool, head_index);
+ elt_index = head->next;
+ elt = pool_elt_at_index (tsm->list_pool, elt_index);
+ session_index = elt->value;
+ while (session_index != ~0)
+ {
+ s = pool_elt_at_index (tsm->sessions, session_index);
+
+ send_snat_user_session_details (s, q, mp->context);
+
+ elt_index = elt->next;
+ elt = pool_elt_at_index (tsm->list_pool, elt_index);
+ session_index = elt->value;
+ }
+}
+
+static void *vl_api_snat_user_session_dump_t_print
+(vl_api_snat_user_session_dump_t *mp, void * handle)
+{
+ u8 *s;
+
+ s = format (0, "SCRIPT: snat_user_session_dump ");
+ s = format (s, "ip_address %U vrf_id %d\n",
+ format_ip4_address, mp->ip_address,
+ clib_net_to_host_u32 (mp->vrf_id));
+
+ FINISH;
+}
+
+static void
+vl_api_snat_add_det_map_t_handler
+(vl_api_snat_add_det_map_t * mp)
+{
+ snat_main_t * sm = &snat_main;
+ vl_api_snat_add_det_map_reply_t * rmp;
+ int rv = 0;
+ ip4_address_t in_addr, out_addr;
+
+ clib_memcpy(&in_addr, mp->in_addr, 4);
+ clib_memcpy(&out_addr, mp->out_addr, 4);
+ rv = snat_det_add_map(sm, &in_addr, mp->in_plen, &out_addr,
+ mp->out_plen, mp->is_add);
+
+ REPLY_MACRO (VL_API_SNAT_ADD_DET_MAP_REPLY);
+}
+
+static void *vl_api_snat_add_det_map_t_print
+(vl_api_snat_add_det_map_t *mp, void * handle)
+{
+ u8 * s;
+
+ s = format (0, "SCRIPT: snat_add_det_map ");
+ s = format (s, "inside address %U/%d outside address %U/%d\n",
+ format_ip4_address, mp->in_addr, mp->in_plen,
+ format_ip4_address, mp->out_addr, mp->out_plen);
+
+ FINISH;
+}
+
+static void
+vl_api_snat_det_forward_t_handler
+(vl_api_snat_det_forward_t * mp)
+{
+ snat_main_t * sm = &snat_main;
+ vl_api_snat_det_forward_reply_t * rmp;
+ int rv = 0;
+ u16 lo_port = 0, hi_port = 0;
+ snat_det_map_t * dm;
+ ip4_address_t in_addr, out_addr;
+
+ out_addr.as_u32 = 0;
+ clib_memcpy(&in_addr, mp->in_addr, 4);
+ dm = snat_det_map_by_user(sm, &in_addr);
+ if (!dm)
+ {
+ rv = VNET_API_ERROR_NO_SUCH_ENTRY;
+ goto send_reply;
+ }
+
+ snat_det_forward(dm, &in_addr, &out_addr, &lo_port);
+ hi_port = lo_port + dm->ports_per_host - 1;
+
+send_reply:
+ REPLY_MACRO2(VL_API_SNAT_DET_FORWARD_REPLY,
+ ({
+ rmp->out_port_lo = ntohs(lo_port);
+ rmp->out_port_hi = ntohs(hi_port);
+ rmp->is_ip4 = 1;
+ memset(rmp->out_addr, 0, 16);
+ clib_memcpy(rmp->out_addr, &out_addr, 4);
+ }))
+}
+
+static void *vl_api_snat_det_forward_t_print
+(vl_api_snat_det_forward_t * mp, void * handle)
+{
+ u8 * s;
+
+ s = format (0, "SCRIPT: smat_det_forward_t");
+ s = format (s, "inside ip address %U\n",
+ format_ip4_address, mp->in_addr);
+
+ FINISH;
+}
+
+static void
+vl_api_snat_det_reverse_t_handler
+(vl_api_snat_det_reverse_t * mp)
+{
+ snat_main_t * sm = &snat_main;
+ vl_api_snat_det_reverse_reply_t * rmp;
+ int rv = 0;
+ ip4_address_t out_addr, in_addr;
+ snat_det_map_t * dm;
+
+ in_addr.as_u32 = 0;
+ clib_memcpy(&out_addr, mp->out_addr, 4);
+ dm = snat_det_map_by_out(sm, &out_addr);
+ if (!dm)
+ {
+ rv = VNET_API_ERROR_NO_SUCH_ENTRY;
+ goto send_reply;
+ }
+
+ snat_det_reverse(dm, &out_addr, htons(mp->out_port), &in_addr);
+
+ send_reply:
+ REPLY_MACRO2(VL_API_SNAT_DET_REVERSE_REPLY,
+ ({
+ rmp->is_ip4 = 1;
+ memset(rmp->in_addr, 0, 16);
+ clib_memcpy(rmp->in_addr, &in_addr, 4);
+ }))
+}
+
+static void *vl_api_snat_det_reverse_t_print
+(vl_api_snat_det_reverse_t * mp, void * handle)
+{
+ u8 * s;
+
+ s = format(0, "SCRIPT: smat_det_reverse_t");
+ s = format(s, "outside ip address %U outside port %d",
+ format_ip4_address, mp->out_addr, ntohs(mp->out_port));
+
+ FINISH;
+}
+
+static void
+sent_snat_det_map_details
+(snat_det_map_t * m, unix_shared_memory_queue_t * q, u32 context)
+{
+ vl_api_snat_det_map_details_t *rmp;
+ snat_main_t * sm = &snat_main;
+
+ rmp = vl_msg_api_alloc (sizeof (*rmp));
+ memset (rmp, 0, sizeof (*rmp));
+ rmp->_vl_msg_id = ntohs (VL_API_SNAT_DET_MAP_DETAILS+sm->msg_id_base);
+ rmp->is_ip4 = 1;
+ clib_memcpy (rmp->in_addr, &m->in_addr, 4);
+ rmp->in_plen = m->in_plen;
+ clib_memcpy (rmp->out_addr, &m->out_addr, 4);
+ rmp->out_plen = m->out_plen;
+ rmp->sharing_ratio = htonl (m->sharing_ratio);
+ rmp->ports_per_host = htons (m->ports_per_host);
+ rmp->ses_num = htonl (m->ses_num);
+ rmp->context = context;
+
+ vl_msg_api_send_shmem (q, (u8 *) & rmp);
+}
+
+static void
+vl_api_snat_det_map_dump_t_handler
+(vl_api_snat_det_map_dump_t * mp)
+{
+ unix_shared_memory_queue_t *q;
+ snat_main_t * sm = &snat_main;
+ snat_det_map_t * m;
+
+ q = vl_api_client_index_to_input_queue (mp->client_index);
+ if (q == 0)
+ return;
+
+ vec_foreach(m, sm->det_maps)
+ sent_snat_det_map_details(m, q, mp->context);
+}
+
+static void * vl_api_snat_det_map_dump_t_print
+(vl_api_snat_det_map_dump_t *mp, void * handle)
+{
+ u8 * s;
+
+ s = format (0, "SCRIPT: snat_det_map_dump ");
+
+ FINISH;
+}
+
+/* List of message types that this plugin understands */
+#define foreach_snat_plugin_api_msg \
+_(SNAT_ADD_ADDRESS_RANGE, snat_add_address_range) \
+_(SNAT_INTERFACE_ADD_DEL_FEATURE, snat_interface_add_del_feature) \
+_(SNAT_ADD_STATIC_MAPPING, snat_add_static_mapping) \
+_(SNAT_CONTROL_PING, snat_control_ping) \
+_(SNAT_STATIC_MAPPING_DUMP, snat_static_mapping_dump) \
+_(SNAT_SHOW_CONFIG, snat_show_config) \
+_(SNAT_ADDRESS_DUMP, snat_address_dump) \
+_(SNAT_INTERFACE_DUMP, snat_interface_dump) \
+_(SNAT_SET_WORKERS, snat_set_workers) \
+_(SNAT_WORKER_DUMP, snat_worker_dump) \
+_(SNAT_ADD_DEL_INTERFACE_ADDR, snat_add_del_interface_addr) \
+_(SNAT_INTERFACE_ADDR_DUMP, snat_interface_addr_dump) \
+_(SNAT_IPFIX_ENABLE_DISABLE, snat_ipfix_enable_disable) \
+_(SNAT_USER_DUMP, snat_user_dump) \
+_(SNAT_USER_SESSION_DUMP, snat_user_session_dump) \
+_(SNAT_ADD_DET_MAP, snat_add_det_map) \
+_(SNAT_DET_FORWARD, snat_det_forward) \
+_(SNAT_DET_REVERSE, snat_det_reverse) \
+_(SNAT_DET_MAP_DUMP, snat_det_map_dump)
+
+/* Set up the API message handling tables */
+static clib_error_t *
+snat_plugin_api_hookup (vlib_main_t *vm)
+{
+ snat_main_t * sm __attribute__ ((unused)) = &snat_main;
+#define _(N,n) \
+ vl_msg_api_set_handlers((VL_API_##N + sm->msg_id_base), \
#n, \
vl_api_##n##_t_handler, \
vl_noop_handler, \
#undef _
}
+
static void
snat_ip4_add_del_interface_address_cb (ip4_main_t * im,
uword opaque,
vec_add1 (im->add_del_interface_address_callbacks, cb4);
+ /* Init IPFIX logging */
+ snat_ipfix_logging_init(vm);
+
return error;
}
a = sm->addresses + address_index;
- ASSERT (clib_bitmap_get_no_check (a->busy_port_bitmap,
- port_host_byte_order) == 1);
-
- clib_bitmap_set_no_check (a->busy_port_bitmap, port_host_byte_order, 0);
- a->busy_ports--;
+ switch (k->protocol)
+ {
+#define _(N, i, n, s) \
+ case SNAT_PROTOCOL_##N: \
+ ASSERT (clib_bitmap_get_no_check (a->busy_##n##_port_bitmap, \
+ port_host_byte_order) == 1); \
+ clib_bitmap_set_no_check (a->busy_##n##_port_bitmap, \
+ port_host_byte_order, 0); \
+ a->busy_##n##_ports--; \
+ break;
+ foreach_snat_protocol
+#undef _
+ default:
+ clib_warning("unknown_protocol");
+ return;
+ }
}
/**
{
clib_bihash_kv_8_8_t kv, value;
snat_static_mapping_t *m;
- snat_static_mapping_key_t m_key;
+ snat_session_key_t m_key;
clib_bihash_8_8_t *mapping_hash = &sm->static_mapping_by_local;
if (by_external)
m_key.addr = match.addr;
m_key.port = clib_net_to_host_u16 (match.port);
+ m_key.protocol = match.protocol;
m_key.fib_index = match.fib_index;
kv.key = m_key.as_u64;
{
/* Try address only mapping */
m_key.port = 0;
+ m_key.protocol = 0;
kv.key = m_key.as_u64;
if (clib_bihash_search_8_8 (mapping_hash, &kv, &value))
return 1;
}
int snat_alloc_outside_address_and_port (snat_main_t * sm,
+ u32 fib_index,
snat_session_key_t * k,
u32 * address_indexp)
{
for (i = 0; i < vec_len (sm->addresses); i++)
{
- if (sm->addresses[i].busy_ports < (65535-1024))
+ a = sm->addresses + i;
+ if (sm->vrf_mode && a->fib_index != ~0 && a->fib_index != fib_index)
+ continue;
+ switch (k->protocol)
{
- a = sm->addresses + i;
-
- while (1)
- {
- portnum = random_u32 (&sm->random_seed);
- portnum &= 0xFFFF;
- if (portnum < 1024)
- continue;
- if (clib_bitmap_get_no_check (a->busy_port_bitmap, portnum))
- continue;
- clib_bitmap_set_no_check (a->busy_port_bitmap, portnum, 1);
- a->busy_ports++;
- /* Caller sets protocol and fib index */
- k->addr = a->addr;
- k->port = clib_host_to_net_u16(portnum);
- *address_indexp = i;
- return 0;
- }
+#define _(N, j, n, s) \
+ case SNAT_PROTOCOL_##N: \
+ if (a->busy_##n##_ports < (65535-1024)) \
+ { \
+ while (1) \
+ { \
+ portnum = random_u32 (&sm->random_seed); \
+ portnum &= 0xFFFF; \
+ if (portnum < 1024) \
+ continue; \
+ if (clib_bitmap_get_no_check (a->busy_##n##_port_bitmap, portnum)) \
+ continue; \
+ clib_bitmap_set_no_check (a->busy_##n##_port_bitmap, portnum, 1); \
+ a->busy_##n##_ports++; \
+ k->addr = a->addr; \
+ k->port = clib_host_to_net_u16(portnum); \
+ *address_indexp = i; \
+ return 0; \
+ } \
+ } \
+ break;
+ foreach_snat_protocol
+#undef _
+ default:
+ clib_warning("unknown protocol");
+ return 1;
}
+
}
/* Totally out of translations to use... */
+ snat_ipfix_logging_addresses_exhausted(0);
return 1;
}
snat_main_t * sm = &snat_main;
ip4_address_t start_addr, end_addr, this_addr;
u32 start_host_order, end_host_order;
+ u32 vrf_id = ~0;
int i, count;
int is_add = 1;
int rv = 0;
+ clib_error_t *error = 0;
/* Get a line of input. */
if (!unformat_user (input, unformat_line_input, line_input))
unformat_ip4_address, &start_addr,
unformat_ip4_address, &end_addr))
;
+ else if (unformat (line_input, "tenant-vrf %u", &vrf_id))
+ ;
else if (unformat (line_input, "%U", unformat_ip4_address, &start_addr))
end_addr = start_addr;
else if (unformat (line_input, "del"))
is_add = 0;
else
- return clib_error_return (0, "unknown input '%U'",
- format_unformat_error, input);
+ {
+ error = clib_error_return (0, "unknown input '%U'",
+ format_unformat_error, line_input);
+ goto done;
+ }
}
- unformat_free (line_input);
if (sm->static_mapping_only)
- return clib_error_return (0, "static mapping only mode");
+ {
+ error = clib_error_return (0, "static mapping only mode");
+ goto done;
+ }
start_host_order = clib_host_to_net_u32 (start_addr.as_u32);
end_host_order = clib_host_to_net_u32 (end_addr.as_u32);
if (end_host_order < start_host_order)
- return clib_error_return (0, "end address less than start address");
+ {
+ error = clib_error_return (0, "end address less than start address");
+ goto done;
+ }
count = (end_host_order - start_host_order) + 1;
for (i = 0; i < count; i++)
{
if (is_add)
- snat_add_address (sm, &this_addr);
+ snat_add_address (sm, &this_addr, vrf_id);
else
- rv = snat_del_address (sm, this_addr);
+ rv = snat_del_address (sm, this_addr, 0);
switch (rv)
{
case VNET_API_ERROR_NO_SUCH_ENTRY:
- return clib_error_return (0, "S-NAT address not exist.");
- break;
+ error = clib_error_return (0, "S-NAT address not exist.");
+ goto done;
case VNET_API_ERROR_UNSPECIFIED:
- return clib_error_return (0, "S-NAT address used in static mapping.");
- break;
+ error = clib_error_return (0, "S-NAT address used in static mapping.");
+ goto done;
default:
break;
}
increment_v4_address (&this_addr);
}
- return 0;
+done:
+ unformat_free (line_input);
+
+ return error;
}
VLIB_CLI_COMMAND (add_address_command, static) = {
.path = "snat add address",
- .short_help = "snat add addresses <ip4-range-start> [- <ip4-range-end>] [del]",
+ .short_help = "snat add addresses <ip4-range-start> [- <ip4-range-end>] "
+ "[tenant-vrf <vrf-id>] [del]",
.function = add_address_command_fn,
};
else if (unformat (line_input, "del"))
is_del = 1;
else
- return clib_error_return (0, "unknown input '%U'",
- format_unformat_error, input);
+ {
+ error = clib_error_return (0, "unknown input '%U'",
+ format_unformat_error, line_input);
+ goto done;
+ }
}
- unformat_free (line_input);
if (vec_len (inside_sw_if_indices))
{
}
}
+done:
+ unformat_free (line_input);
vec_free (inside_sw_if_indices);
vec_free (outside_sw_if_indices);
.short_help = "set interface snat in <intfc> out <intfc> [del]",
};
+uword
+unformat_snat_protocol (unformat_input_t * input, va_list * args)
+{
+ u32 *r = va_arg (*args, u32 *);
+
+ if (0);
+#define _(N, i, n, s) else if (unformat (input, s)) *r = SNAT_PROTOCOL_##N;
+ foreach_snat_protocol
+#undef _
+ else
+ return 0;
+ return 1;
+}
+
+u8 *
+format_snat_protocol (u8 * s, va_list * args)
+{
+ u32 i = va_arg (*args, u32);
+ u8 *t = 0;
+
+ switch (i)
+ {
+#define _(N, j, n, str) case SNAT_PROTOCOL_##N: t = (u8 *) str; break;
+ foreach_snat_protocol
+#undef _
+ default:
+ s = format (s, "unknown");
+ }
+ s = format (s, "%s", t);
+ return s;
+}
+
static clib_error_t *
add_static_mapping_command_fn (vlib_main_t * vm,
unformat_input_t * input,
u32 l_port = 0, e_port = 0, vrf_id = ~0;
int is_add = 1;
int addr_only = 1;
+ u32 sw_if_index = ~0;
+ vnet_main_t * vnm = vnet_get_main();
int rv;
+ snat_protocol_t proto;
+ u8 proto_set = 0;
/* Get a line of input. */
if (!unformat_user (input, unformat_line_input, line_input))
else if (unformat (line_input, "external %U", unformat_ip4_address,
&e_addr))
;
+ else if (unformat (line_input, "external %U %u",
+ unformat_vnet_sw_interface, vnm, &sw_if_index,
+ &e_port))
+ addr_only = 0;
+
+ else if (unformat (line_input, "external %U",
+ unformat_vnet_sw_interface, vnm, &sw_if_index))
+ ;
else if (unformat (line_input, "vrf %u", &vrf_id))
;
+ else if (unformat (line_input, "%U", unformat_snat_protocol, &proto))
+ proto_set = 1;
else if (unformat (line_input, "del"))
is_add = 0;
else
- return clib_error_return (0, "unknown input: '%U'",
- format_unformat_error, line_input);
+ {
+ error = clib_error_return (0, "unknown input: '%U'",
+ format_unformat_error, line_input);
+ goto done;
+ }
+ }
+
+ if (!addr_only && !proto_set)
+ {
+ error = clib_error_return (0, "missing protocol");
+ goto done;
}
- unformat_free (line_input);
rv = snat_add_static_mapping(l_addr, e_addr, (u16) l_port, (u16) e_port,
- vrf_id, addr_only, is_add);
+ vrf_id, addr_only, sw_if_index, proto, is_add);
switch (rv)
{
case VNET_API_ERROR_INVALID_VALUE:
- return clib_error_return (0, "External port already in use.");
- break;
+ error = clib_error_return (0, "External port already in use.");
+ goto done;
case VNET_API_ERROR_NO_SUCH_ENTRY:
if (is_add)
- return clib_error_return (0, "External addres must be allocated.");
+ error = clib_error_return (0, "External addres must be allocated.");
else
- return clib_error_return (0, "Mapping not exist.");
- break;
+ error = clib_error_return (0, "Mapping not exist.");
+ goto done;
case VNET_API_ERROR_NO_SUCH_FIB:
- return clib_error_return (0, "No such VRF id.");
+ error = clib_error_return (0, "No such VRF id.");
+ goto done;
case VNET_API_ERROR_VALUE_EXIST:
- return clib_error_return (0, "Mapping already exist.");
+ error = clib_error_return (0, "Mapping already exist.");
+ goto done;
default:
break;
}
+done:
+ unformat_free (line_input);
+
return error;
}
* Static mapping allows hosts on the external network to initiate connection
* to to the local network host.
* To create static mapping between local host address 10.0.0.3 port 6303 and
- * external address 4.4.4.4 port 3606 use:
- * vpp# snat add static mapping local 10.0.0.3 6303 external 4.4.4.4 3606
+ * external address 4.4.4.4 port 3606 for TCP protocol use:
+ * vpp# snat add static mapping local tcp 10.0.0.3 6303 external 4.4.4.4 3606
* If not runnig "static mapping only" S-NAT plugin mode use before:
* vpp# snat add address 4.4.4.4
* To create static mapping between local and external address use:
.path = "snat add static mapping",
.function = add_static_mapping_command_fn,
.short_help =
- "snat add static mapping local <addr> [<port>] external <addr> [<port>] [vrf <table-id>] [del]",
+ "snat add static mapping local
tcp|udp|icmp <addr> [<port>] external <addr> [<port>] [vrf <table-id>] [del]",
};
static clib_error_t *
unformat_input_t _line_input, *line_input = &_line_input;
uword *bitmap = 0;
int rv = 0;
+ clib_error_t *error = 0;
/* Get a line of input. */
if (!unformat_user (input, unformat_line_input, line_input))
if (unformat (line_input, "%U", unformat_bitmap_list, &bitmap))
;
else
- return clib_error_return (0, "unknown input '%U'",
- format_unformat_error, input);
+ {
+ error = clib_error_return (0, "unknown input '%U'",
+ format_unformat_error, line_input);
+ goto done;
+ }
}
- unformat_free (line_input);
if (bitmap == 0)
- return clib_error_return (0, "List of workers must be specified.");
-
+ {
+ error = clib_error_return (0, "List of workers must be specified.");
+ goto done;
+ }
+
rv = snat_set_workers(bitmap);
clib_bitmap_free (bitmap);
switch (rv)
{
case VNET_API_ERROR_INVALID_WORKER:
- return clib_error_return (0, "Invalid worker(s).");
- break;
+ error = clib_error_return (0, "Invalid worker(s).");
+ goto done;
case VNET_API_ERROR_FEATURE_DISABLED:
- return clib_error_return (0,
+ error = clib_error_return (0,
"Supported only if 2 or more workes available.");
- break;
+ goto done;
default:
break;
}
- return 0;
+done:
+ unformat_free (line_input);
+
+ return error;
}
/*?
"set snat workers <workers-list>",
};
+static clib_error_t *
+snat_ipfix_logging_enable_disable_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ unformat_input_t _line_input, *line_input = &_line_input;
+ u32 domain_id = 0;
+ u32 src_port = 0;
+ u8 enable = 1;
+ int rv = 0;
+ clib_error_t *error = 0;
+
+ /* Get a line of input. */
+ if (!unformat_user (input, unformat_line_input, line_input))
+ return 0;
+
+ while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (line_input, "domain %d", &domain_id))
+ ;
+ else if (unformat (line_input, "src-port %d", &src_port))
+ ;
+ else if (unformat (line_input, "disable"))
+ enable = 0;
+ else
+ {
+ error = clib_error_return (0, "unknown input '%U'",
+ format_unformat_error, line_input);
+ goto done;
+ }
+ }
+
+ rv = snat_ipfix_logging_enable_disable (enable, domain_id, (u16) src_port);
+
+ if (rv)
+ {
+ error = clib_error_return (0, "ipfix logging enable failed");
+ goto done;
+ }
+
+done:
+ unformat_free (line_input);
+
+ return error;
+}
+
+/*?
+ * @cliexpar
+ * @cliexstart{snat ipfix logging}
+ * To enable SNAT IPFIX logging use:
+ * vpp# snat ipfix logging
+ * To set IPFIX exporter use:
+ * vpp# set ipfix exporter collector 10.10.10.3 src 10.10.10.1
+ * @cliexend
+?*/
+VLIB_CLI_COMMAND (snat_ipfix_logging_enable_disable_command, static) = {
+ .path = "snat ipfix logging",
+ .function = snat_ipfix_logging_enable_disable_command_fn,
+ .short_help = "snat ipfix logging [domain <domain-id>] [src-port <port>] [disable]",
+};
+
+static u32
+snat_get_worker_in2out_cb (ip4_header_t * ip0, u32 rx_fib_index0)
+{
+ snat_main_t *sm = &snat_main;
+ snat_user_key_t key0;
+ clib_bihash_kv_8_8_t kv0, value0;
+ u32 next_worker_index = 0;
+
+ key0.addr = ip0->src_address;
+ key0.fib_index = rx_fib_index0;
+
+ kv0.key = key0.as_u64;
+
+ /* Ever heard of of the "user" before? */
+ if (clib_bihash_search_8_8 (&sm->worker_by_in, &kv0, &value0))
+ {
+ /* No, assign next available worker (RR) */
+ next_worker_index = sm->first_worker_index;
+ if (vec_len (sm->workers))
+ {
+ next_worker_index +=
+ sm->workers[sm->next_worker++ % _vec_len (sm->workers)];
+ }
+
+ /* add non-traslated packets worker lookup */
+ kv0.value = next_worker_index;
+ clib_bihash_add_del_8_8 (&sm->worker_by_in, &kv0, 1);
+ }
+ else
+ next_worker_index = value0.value;
+
+ return next_worker_index;
+}
+
+static u32
+snat_get_worker_out2in_cb (ip4_header_t * ip0, u32 rx_fib_index0)
+{
+ snat_main_t *sm = &snat_main;
+ snat_worker_key_t key0;
+ clib_bihash_kv_8_8_t kv0, value0;
+ udp_header_t * udp0;
+ u32 next_worker_index = 0;
+
+ udp0 = ip4_next_header (ip0);
+
+ key0.addr = ip0->dst_address;
+ key0.port = udp0->dst_port;
+ key0.fib_index = rx_fib_index0;
+
+ if (PREDICT_FALSE(ip0->protocol == IP_PROTOCOL_ICMP))
+ {
+ icmp46_header_t * icmp0 = (icmp46_header_t *) udp0;
+ icmp_echo_header_t *echo0 = (icmp_echo_header_t *)(icmp0+1);
+ key0.port = echo0->identifier;
+ }
+
+ kv0.key = key0.as_u64;
+
+ /* Ever heard of of the "user" before? */
+ if (clib_bihash_search_8_8 (&sm->worker_by_out, &kv0, &value0))
+ {
+ key0.port = 0;
+ kv0.key = key0.as_u64;
+
+ if (clib_bihash_search_8_8 (&sm->worker_by_out, &kv0, &value0))
+ {
+ /* No, assign next available worker (RR) */
+ next_worker_index = sm->first_worker_index;
+ if (vec_len (sm->workers))
+ {
+ next_worker_index +=
+ sm->workers[sm->next_worker++ % _vec_len (sm->workers)];
+ }
+ }
+ else
+ {
+ /* Static mapping without port */
+ next_worker_index = value0.value;
+ }
+
+ /* Add to translated packets worker lookup */
+ kv0.value = next_worker_index;
+ clib_bihash_add_del_8_8 (&sm->worker_by_out, &kv0, 1);
+ }
+ else
+ next_worker_index = value0.value;
+
+ return next_worker_index;
+}
+
static clib_error_t *
snat_config (vlib_main_t * vm, unformat_input_t * input)
{
u8 static_mapping_connection_tracking = 0;
vlib_thread_main_t *tm = vlib_get_thread_main ();
+ sm->deterministic = 0;
+
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (input, "translation hash buckets %d", &translation_buckets))
if (unformat (input, "connection tracking"))
static_mapping_connection_tracking = 1;
}
- else
+ else if (unformat (input, "deterministic"))
+ sm->deterministic = 1;
+ else
return clib_error_return (0, "unknown input '%U'",
format_unformat_error, input);
}
sm->user_memory_size = user_memory_size;
sm->max_translations_per_user = max_translations_per_user;
sm->outside_vrf_id = outside_vrf_id;
- sm->outside_fib_index = ~0;
+ sm->outside_fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4,
+ outside_vrf_id);
sm->inside_vrf_id = inside_vrf_id;
- sm->inside_fib_index = ~0;
+ sm->inside_fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4,
+ inside_vrf_id);
sm->static_mapping_only = static_mapping_only;
sm->static_mapping_connection_tracking = static_mapping_connection_tracking;
- if (!static_mapping_only ||
- (static_mapping_only && static_mapping_connection_tracking))
+ if (sm->deterministic)
{
- clib_bihash_init_8_8 (&sm->worker_by_in, "worker-by-in", user_buckets,
- user_memory_size);
+ sm->in2out_node_index = snat_det_in2out_node.index;
+ sm->out2in_node_index = snat_det_out2in_node.index;
+ }
+ else
+ {
+ sm->worker_in2out_cb = snat_get_worker_in2out_cb;
+ sm->worker_out2in_cb = snat_get_worker_out2in_cb;
+ sm->in2out_node_index = snat_in2out_node.index;
+ sm->out2in_node_index = snat_out2in_node.index;
+ if (!static_mapping_only ||
+ (static_mapping_only && static_mapping_connection_tracking))
+ {
+ sm->icmp_match_in2out_cb = icmp_match_in2out_slow;
+ sm->icmp_match_out2in_cb = icmp_match_out2in_slow;
- clib_bihash_init_8_8 (&sm->worker_by_out, "worker-by-out", user_buckets,
- user_memory_size);
+ clib_bihash_init_8_8 (&sm->worker_by_in, "worker-by-in", user_buckets,
+ user_memory_size);
- vec_validate (sm->per_thread_data, tm->n_vlib_mains - 1);
+ clib_bihash_init_8_8 (&sm->worker_by_out, "worker-by-out", user_buckets,
+ user_memory_size);
- clib_bihash_init_8_8 (&sm->in2out, "in2out", translation_buckets,
- translation_memory_size);
+ vec_validate (sm->per_thread_data, tm->n_vlib_mains - 1);
- clib_bihash_init_8_8 (&sm->out2in, "out2in", translation_buckets,
- translation_memory_size);
+ clib_bihash_init_8_8 (&sm->in2out, "in2out", translation_buckets,
+ translation_memory_size);
+
+ clib_bihash_init_8_8 (&sm->out2in, "out2in", translation_buckets,
+ translation_memory_size);
+
+ clib_bihash_init_8_8 (&sm->user_hash, "users", user_buckets,
+ user_memory_size);
+ }
+ else
+ {
+ sm->icmp_match_in2out_cb = icmp_match_in2out_fast;
+ sm->icmp_match_out2in_cb = icmp_match_out2in_fast;
+ }
+ clib_bihash_init_8_8 (&sm->static_mapping_by_local,
+ "static_mapping_by_local", static_mapping_buckets,
+ static_mapping_memory_size);
- clib_bihash_init_8_8 (&sm->user_hash, "users", user_buckets,
- user_memory_size);
+ clib_bihash_init_8_8 (&sm->static_mapping_by_external,
+ "static_mapping_by_external", static_mapping_buckets,
+ static_mapping_memory_size);
}
- clib_bihash_init_8_8 (&sm->static_mapping_by_local,
- "static_mapping_by_local", static_mapping_buckets,
- static_mapping_memory_size);
- clib_bihash_init_8_8 (&sm->static_mapping_by_external,
- "static_mapping_by_external", static_mapping_buckets,
- static_mapping_memory_size);
return 0;
}
VLIB_CONFIG_FUNCTION (snat_config, "snat");
+u8 * format_snat_session_state (u8 * s, va_list * args)
+{
+ u32 i = va_arg (*args, u32);
+ u8 *t = 0;
+
+ switch (i)
+ {
+#define _(v, N, str) case SNAT_SESSION_##N: t = (u8 *) str; break;
+ foreach_snat_session_state
+#undef _
+ default:
+ t = format (t, "unknown");
+ }
+ s = format (s, "%s", t);
+ return s;
+}
+
u8 * format_snat_key (u8 * s, va_list * args)
{
snat_session_key_t * key = va_arg (*args, snat_session_key_t *);
format_ip4_address, &m->external_addr,
m->vrf_id);
else
- s = format (s, "local %U:%d external %U:%d vrf %d",
+ s = format (s, "%U local %U:%d external %U:%d vrf %d",
+ format_snat_protocol, m->proto,
format_ip4_address, &m->local_addr, m->local_port,
format_ip4_address, &m->external_addr, m->external_port,
m->vrf_id);
return s;
}
+u8 * format_snat_static_map_to_resolve (u8 * s, va_list * args)
+{
+ snat_static_map_resolve_t *m = va_arg (*args, snat_static_map_resolve_t *);
+ vnet_main_t *vnm = vnet_get_main();
+
+ if (m->addr_only)
+ s = format (s, "local %U external %U vrf %d",
+ format_ip4_address, &m->l_addr,
+ format_vnet_sw_interface_name, vnm,
+ vnet_get_sw_interface (vnm, m->sw_if_index),
+ m->vrf_id);
+ else
+ s = format (s, "%U local %U:%d external %U:%d vrf %d",
+ format_snat_protocol, m->proto,
+ format_ip4_address, &m->l_addr, m->l_port,
+ format_vnet_sw_interface_name, vnm,
+ vnet_get_sw_interface (vnm, m->sw_if_index), m->e_port,
+ m->vrf_id);
+
+ return s;
+}
+
+u8 * format_det_map_ses (u8 * s, va_list * args)
+{
+ snat_det_map_t * det_map = va_arg (*args, snat_det_map_t *);
+ ip4_address_t in_addr, out_addr;
+ u32 in_offset, out_offset;
+ snat_det_session_t * ses = va_arg (*args, snat_det_session_t *);
+ u32 * i = va_arg (*args, u32 *);
+
+ u32 user_index = *i / SNAT_DET_SES_PER_USER;
+ in_addr.as_u32 = clib_host_to_net_u32 (
+ clib_net_to_host_u32(det_map->in_addr.as_u32) + user_index);
+ in_offset = clib_net_to_host_u32(in_addr.as_u32) -
+ clib_net_to_host_u32(det_map->in_addr.as_u32);
+ out_offset = in_offset / det_map->sharing_ratio;
+ out_addr.as_u32 = clib_host_to_net_u32(
+ clib_net_to_host_u32(det_map->out_addr.as_u32) + out_offset);
+ s = format (s, "in %U:%d out %U:%d external host %U:%d state: %U expire: %d\n",
+ format_ip4_address, &in_addr,
+ clib_net_to_host_u16 (ses->in_port),
+ format_ip4_address, &out_addr,
+ clib_net_to_host_u16 (ses->out.out_port),
+ format_ip4_address, &ses->out.ext_host_addr,
+ clib_net_to_host_u16 (ses->out.ext_host_port),
+ format_snat_session_state, ses->state,
+ ses->expire);
+
+ return s;
+}
+
static clib_error_t *
show_snat_command_fn (vlib_main_t * vm,
unformat_input_t * input,
snat_main_per_thread_data_t *tsm;
u32 users_num = 0, sessions_num = 0, *worker, *sw_if_index;
uword j = 0;
+ snat_static_map_resolve_t *rp;
+ snat_det_map_t * dm;
+ snat_det_session_t * ses;
if (unformat (input, "detail"))
verbose = 1;
else
vlib_cli_output (vm, "SNAT mode: static mapping only");
}
+ else if (sm->deterministic)
+ {
+ vlib_cli_output (vm, "SNAT mode: deterministic mapping");
+ }
else
{
vlib_cli_output (vm, "SNAT mode: dynamic translations enabled");
vec_foreach (ap, sm->addresses)
{
- u8 * s = format (0, "");
vlib_cli_output (vm, "%U", format_ip4_address, &ap->addr);
- clib_bitmap_foreach (j, ap->busy_port_bitmap,
- ({
- s = format (s, " %d", j);
- }));
- vlib_cli_output (vm, " %d busy ports:%v", ap->busy_ports, s);
+ if (ap->fib_index != ~0)
+ vlib_cli_output (vm, " tenant VRF: %u",
+ ip4_fib_get(ap->fib_index)->table_id);
+ else
+ vlib_cli_output (vm, " tenant VRF independent");
+#define _(N, i, n, s) \
+ vlib_cli_output (vm, " %d busy %s ports", ap->busy_##n##_ports, s);
+ foreach_snat_protocol
+#undef _
}
}
{
vlib_worker_thread_t *w =
vlib_worker_threads + *worker + sm->first_worker_index;
- vlib_cli_output (vm, " %v", w->name);
+ vlib_cli_output (vm, " %s", w->name);
}
}
}
- if (sm->static_mapping_only && !(sm->static_mapping_connection_tracking))
+ if (sm->deterministic)
{
- vlib_cli_output (vm, "%d static mappings",
- pool_elts (sm->static_mappings));
-
+ vlib_cli_output (vm, "%d deterministic mappings",
+ pool_elts (sm->det_maps));
if (verbose > 0)
{
- pool_foreach (m, sm->static_mappings,
+ pool_foreach (dm, sm->det_maps,
({
- vlib_cli_output (vm, "%U", format_snat_static_mapping, m);
+ vlib_cli_output (vm, "in %U/%d out %U/%d\n",
+ format_ip4_address, &dm->in_addr, dm->in_plen,
+ format_ip4_address, &dm->out_addr, dm->out_plen);
+ vlib_cli_output (vm, " outside address sharing ratio: %d\n",
+ dm->sharing_ratio);
+ vlib_cli_output (vm, " number of ports per inside host: %d\n",
+ dm->ports_per_host);
+ vlib_cli_output (vm, " sessions number: %d\n", dm->ses_num);
+ if (verbose > 1)
+ {
+ vec_foreach_index (j, dm->sessions)
+ {
+ ses = vec_elt_at_index (dm->sessions, j);
+ if (ses->in_port)
+ vlib_cli_output (vm, " %U", format_det_map_ses, dm, ses,
+ &j);
+ }
+ }
}));
}
}
else
{
- vec_foreach (tsm, sm->per_thread_data)
+ if (sm->static_mapping_only && !(sm->static_mapping_connection_tracking))
{
- users_num += pool_elts (tsm->users);
- sessions_num += pool_elts (tsm->sessions);
- }
-
- vlib_cli_output (vm, "%d users, %d outside addresses, %d active sessions,"
- " %d static mappings",
- users_num,
- vec_len (sm->addresses),
- sessions_num,
- pool_elts (sm->static_mappings));
+ vlib_cli_output (vm, "%d static mappings",
+ pool_elts (sm->static_mappings));
- if (verbose > 0)
- {
- vlib_cli_output (vm, "%U", format_bihash_8_8, &sm->in2out,
- verbose - 1);
- vlib_cli_output (vm, "%U", format_bihash_8_8, &sm->out2in,
- verbose - 1);
- vlib_cli_output (vm, "%U", format_bihash_8_8, &sm->worker_by_in,
- verbose - 1);
- vlib_cli_output (vm, "%U", format_bihash_8_8, &sm->worker_by_out,
- verbose - 1);
- vec_foreach_index (j, sm->per_thread_data)
+ if (verbose > 0)
{
- tsm = vec_elt_at_index (sm->per_thread_data, j);
-
- if (pool_elts (tsm->users) == 0)
- continue;
-
- vlib_worker_thread_t *w = vlib_worker_threads + j;
- vlib_cli_output (vm, "Thread %d (%v at lcore %u):", j, w->name,
- w->lcore_id);
- vlib_cli_output (vm, " %d list pool elements",
- pool_elts (tsm->list_pool));
-
- pool_foreach (u, tsm->users,
+ pool_foreach (m, sm->static_mappings,
({
- vlib_cli_output (vm, " %U", format_snat_user, tsm, u,
- verbose - 1);
+ vlib_cli_output (vm, "%U", format_snat_static_mapping, m);
}));
}
+ }
+ else
+ {
+ vec_foreach (tsm, sm->per_thread_data)
+ {
+ users_num += pool_elts (tsm->users);
+ sessions_num += pool_elts (tsm->sessions);
+ }
+
+ vlib_cli_output (vm, "%d users, %d outside addresses, %d active sessions,"
+ " %d static mappings",
+ users_num,
+ vec_len (sm->addresses),
+ sessions_num,
+ pool_elts (sm->static_mappings));
- if (pool_elts (sm->static_mappings))
+ if (verbose > 0)
{
- vlib_cli_output (vm, "static mappings:");
- pool_foreach (m, sm->static_mappings,
- ({
- vlib_cli_output (vm, "%U", format_snat_static_mapping, m);
- }));
+ vlib_cli_output (vm, "%U", format_bihash_8_8, &sm->in2out,
+ verbose - 1);
+ vlib_cli_output (vm, "%U", format_bihash_8_8, &sm->out2in,
+ verbose - 1);
+ vlib_cli_output (vm, "%U", format_bihash_8_8, &sm->worker_by_in,
+ verbose - 1);
+ vlib_cli_output (vm, "%U", format_bihash_8_8, &sm->worker_by_out,
+ verbose - 1);
+ vec_foreach_index (j, sm->per_thread_data)
+ {
+ tsm = vec_elt_at_index (sm->per_thread_data, j);
+
+ if (pool_elts (tsm->users) == 0)
+ continue;
+
+ vlib_worker_thread_t *w = vlib_worker_threads + j;
+ vlib_cli_output (vm, "Thread %d (%s at lcore %u):", j, w->name,
+ w->lcore_id);
+ vlib_cli_output (vm, " %d list pool elements",
+ pool_elts (tsm->list_pool));
+
+ pool_foreach (u, tsm->users,
+ ({
+ vlib_cli_output (vm, " %U", format_snat_user, tsm, u,
+ verbose - 1);
+ }));
+ }
+
+ if (pool_elts (sm->static_mappings))
+ {
+ vlib_cli_output (vm, "static mappings:");
+ pool_foreach (m, sm->static_mappings,
+ ({
+ vlib_cli_output (vm, "%U", format_snat_static_mapping, m);
+ }));
+ for (j = 0; j < vec_len (sm->to_resolve); j++)
+ {
+ rp = sm->to_resolve + j;
+ vlib_cli_output (vm, "%U",
+ format_snat_static_map_to_resolve, rp);
+ }
+ }
}
}
}
-
return 0;
}
u32 is_delete)
{
snat_main_t *sm = &snat_main;
+ snat_static_map_resolve_t *rp;
+ u32 *indices_to_delete = 0;
int i, j;
+ int rv;
for (i = 0; i < vec_len(sm->auto_add_sw_if_indices); i++)
{
if (sm->addresses[j].addr.as_u32 == address->as_u32)
return;
- snat_add_address (sm, address);
+ snat_add_address (sm, address, ~0);
+ /* Scan static map resolution vector */
+ for (j = 0; j < vec_len (sm->to_resolve); j++)
+ {
+ rp = sm->to_resolve + j;
+ /* On this interface? */
+ if (rp->sw_if_index == sw_if_index)
+ {
+ /* Add the static mapping */
+ rv = snat_add_static_mapping (rp->l_addr,
+ address[0],
+ rp->l_port,
+ rp->e_port,
+ rp->vrf_id,
+ rp->addr_only,
+ ~0 /* sw_if_index */,
+ rp->proto,
+ rp->is_add);
+ if (rv)
+ clib_warning ("snat_add_static_mapping returned %d",
+ rv);
+ vec_add1 (indices_to_delete, j);
+ }
+ }
+ /* If we resolved any of the outstanding static mappings */
+ if (vec_len(indices_to_delete))
+ {
+ /* Delete them */
+ for (j = vec_len(indices_to_delete)-1; j >= 0; j--)
+ vec_delete(sm->to_resolve, 1, j);
+ vec_free(indices_to_delete);
+ }
return;
}
else
{
- (void) snat_del_address(sm, address[0]);
+ (void) snat_del_address(sm, address[0], 1);
return;
}
}
{
ip4_main_t * ip4_main = sm->ip4_main;
ip4_address_t * first_int_addr;
- int i;
+ snat_static_map_resolve_t *rp;
+ u32 *indices_to_delete = 0;
+ int i, j;
first_int_addr = ip4_interface_first_address (ip4_main, sw_if_index,
0 /* just want the address*/);
{
/* if have address remove it */
if (first_int_addr)
- (void) snat_del_address (sm, first_int_addr[0]);
+ (void) snat_del_address (sm, first_int_addr[0], 1);
+ else
+ {
+ for (j = 0; j < vec_len (sm->to_resolve); j++)
+ {
+ rp = sm->to_resolve + j;
+ if (rp->sw_if_index == sw_if_index)
+ vec_add1 (indices_to_delete, j);
+ }
+ if (vec_len(indices_to_delete))
+ {
+ for (j = vec_len(indices_to_delete)-1; j >= 0; j--)
+ vec_del1(sm->to_resolve, j);
+ vec_free(indices_to_delete);
+ }
+ }
vec_del1(sm->auto_add_sw_if_indices, i);
}
else
/* If the address is already bound - or static - add it now */
if (first_int_addr)
- snat_add_address (sm, first_int_addr);
+ snat_add_address (sm, first_int_addr, ~0);
return 0;
}
u32 sw_if_index;
int rv;
int is_del = 0;
+ clib_error_t *error = 0;
/* Get a line of input. */
if (!unformat_user (input, unformat_line_input, line_input))
else if (unformat (line_input, "del"))
is_del = 1;
else
- return clib_error_return (0, "unknown input '%U'",
- format_unformat_error, line_input);
+ {
+ error = clib_error_return (0, "unknown input '%U'",
+ format_unformat_error, line_input);
+ goto done;
+ }
}
rv = snat_add_interface_address (sm, sw_if_index, is_del);
break;
default:
- return clib_error_return (0, "snat_add_interface_address returned %d",
- rv);
+ error = clib_error_return (0, "snat_add_interface_address returned %d",
+ rv);
+ goto done;
}
- return 0;
+
+done:
+ unformat_free (line_input);
+
+ return error;
}
VLIB_CLI_COMMAND (snat_add_interface_address_command, static) = {
.short_help = "snat add interface address <interface> [del]",
.function = snat_add_interface_address_command_fn,
};
+
+static clib_error_t *
+snat_det_map_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ snat_main_t *sm = &snat_main;
+ unformat_input_t _line_input, *line_input = &_line_input;
+ ip4_address_t in_addr, out_addr;
+ u32 in_plen, out_plen;
+ int is_add = 1, rv;
+ clib_error_t *error = 0;
+
+ /* Get a line of input. */
+ if (!unformat_user (input, unformat_line_input, line_input))
+ return 0;
+
+ while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (line_input, "in %U/%u", unformat_ip4_address, &in_addr, &in_plen))
+ ;
+ else if (unformat (line_input, "out %U/%u", unformat_ip4_address, &out_addr, &out_plen))
+ ;
+ else if (unformat (line_input, "del"))
+ is_add = 0;
+ else
+ {
+ error = clib_error_return (0, "unknown input '%U'",
+ format_unformat_error, line_input);
+ goto done;
+ }
+ }
+
+ unformat_free (line_input);
+
+ rv = snat_det_add_map(sm, &in_addr, (u8) in_plen, &out_addr, (u8)out_plen,
+ is_add);
+
+ if (rv)
+ {
+ error = clib_error_return (0, "snat_det_add_map return %d", rv);
+ goto done;
+ }
+
+done:
+ unformat_free (line_input);
+
+ return error;
+}
+
+/*?
+ * @cliexpar
+ * @cliexstart{snat deterministic add}
+ * Create bijective mapping of inside address to outside address and port range
+ * pairs, with the purpose of enabling deterministic NAT to reduce logging in
+ * CGN deployments.
+ * To create deterministic mapping between inside network 10.0.0.0/18 and
+ * outside network 1.1.1.0/30 use:
+ * # vpp# snat deterministic add in 10.0.0.0/18 out 1.1.1.0/30
+ * @cliexend
+?*/
+VLIB_CLI_COMMAND (snat_det_map_command, static) = {
+ .path = "snat deterministic add",
+ .short_help = "snat deterministic add in <addr>/<plen> out <addr>/<plen> [del]",
+ .function = snat_det_map_command_fn,
+};
+
+static clib_error_t *
+snat_det_forward_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ snat_main_t *sm = &snat_main;
+ unformat_input_t _line_input, *line_input = &_line_input;
+ ip4_address_t in_addr, out_addr;
+ u16 lo_port;
+ snat_det_map_t * dm;
+ clib_error_t *error = 0;
+
+ /* Get a line of input. */
+ if (!unformat_user (input, unformat_line_input, line_input))
+ return 0;
+
+ while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (line_input, "%U", unformat_ip4_address, &in_addr))
+ ;
+ else
+ {
+ error = clib_error_return (0, "unknown input '%U'",
+ format_unformat_error, line_input);
+ goto done;
+ }
+ }
+
+ unformat_free (line_input);
+
+ dm = snat_det_map_by_user(sm, &in_addr);
+ if (!dm)
+ vlib_cli_output (vm, "no match");
+ else
+ {
+ snat_det_forward (dm, &in_addr, &out_addr, &lo_port);
+ vlib_cli_output (vm, "%U:<%d-%d>", format_ip4_address, &out_addr,
+ lo_port, lo_port + dm->ports_per_host - 1);
+ }
+
+done:
+ unformat_free (line_input);
+
+ return error;
+}
+
+/*?
+ * @cliexpar
+ * @cliexstart{snat deterministic forward}
+ * Return outside address and port range from inside address for deterministic
+ * NAT.
+ * To obtain outside address and port of inside host use:
+ * vpp# snat deterministic forward 10.0.0.2
+ * 1.1.1.0:<1054-1068>
+ * @cliexend
+?*/
+VLIB_CLI_COMMAND (snat_det_forward_command, static) = {
+ .path = "snat deterministic forward",
+ .short_help = "snat deterministic forward <addr>",
+ .function = snat_det_forward_command_fn,
+};
+
+static clib_error_t *
+snat_det_reverse_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ snat_main_t *sm = &snat_main;
+ unformat_input_t _line_input, *line_input = &_line_input;
+ ip4_address_t in_addr, out_addr;
+ u32 out_port;
+ snat_det_map_t * dm;
+ clib_error_t *error = 0;
+
+ /* Get a line of input. */
+ if (!unformat_user (input, unformat_line_input, line_input))
+ return 0;
+
+ while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (line_input, "%U:%d", unformat_ip4_address, &out_addr, &out_port))
+ ;
+ else
+ {
+ error = clib_error_return (0, "unknown input '%U'",
+ format_unformat_error, line_input);
+ }
+ }
+
+ unformat_free (line_input);
+
+ if (out_port < 1024 || out_port > 65535)
+ {
+ error = clib_error_return (0, "wrong port, must be <1024-65535>");
+ goto done;
+ }
+
+ dm = snat_det_map_by_out(sm, &out_addr);
+ if (!dm)
+ vlib_cli_output (vm, "no match");
+ else
+ {
+ snat_det_reverse (dm, &out_addr, (u16) out_port, &in_addr);
+ vlib_cli_output (vm, "%U", format_ip4_address, &in_addr);
+ }
+
+done:
+ unformat_free (line_input);
+
+ return error;
+}
+
+/*?
+ * @cliexpar
+ * @cliexstart{snat deterministic reverse}
+ * Return inside address from outside address and port for deterministic NAT.
+ * To obtain inside host address from outside address and port use:
+ * #vpp snat deterministic reverse 1.1.1.1:1276
+ * 10.0.16.16
+ * @cliexend
+?*/
+VLIB_CLI_COMMAND (snat_det_reverse_command, static) = {
+ .path = "snat deterministic reverse",
+ .short_help = "snat deterministic reverse <addr>:<port>",
+ .function = snat_det_reverse_command_fn,
+};
Code Review / vpp.git / blobdiff