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-rw-r--r--src/plugins/nat/lib/nat_proto.h1
-rw-r--r--src/plugins/nat/nat44-ei/nat44_ei.c389
-rw-r--r--src/plugins/nat/nat44-ei/nat44_ei.h9
-rw-r--r--src/plugins/nat/nat44-ei/nat44_ei_cli.c2
4 files changed, 158 insertions, 243 deletions
diff --git a/src/plugins/nat/lib/nat_proto.h b/src/plugins/nat/lib/nat_proto.h
index 9b20d9a71d1..4b57b994e22 100644
--- a/src/plugins/nat/lib/nat_proto.h
+++ b/src/plugins/nat/lib/nat_proto.h
@@ -28,6 +28,7 @@ typedef enum
#define _(N, i, n, s) NAT_PROTOCOL_##N = i,
foreach_nat_protocol
#undef _
+ NAT_N_PROTOCOLS
} nat_protocol_t;
always_inline nat_protocol_t
diff --git a/src/plugins/nat/nat44-ei/nat44_ei.c b/src/plugins/nat/nat44-ei/nat44_ei.c
index 8446011ec92..448566d93ce 100644
--- a/src/plugins/nat/nat44-ei/nat44_ei.c
+++ b/src/plugins/nat/nat44-ei/nat44_ei.c
@@ -185,67 +185,26 @@ static int nat44_ei_del_static_mapping_internal (
ip4_address_t l_addr, ip4_address_t e_addr, u16 l_port, u16 e_port,
nat_protocol_t proto, u32 vrf_id, u32 sw_if_index, u32 flags);
+always_inline bool
+nat44_ei_port_is_used (nat44_ei_address_t *a, u8 proto, u16 port)
+{
+ return clib_bitmap_get (a->busy_port_bitmap[proto], port);
+}
+
always_inline void
nat44_ei_port_get (nat44_ei_address_t *a, u8 proto, u16 port)
{
- nat44_ei_main_t *nm = &nat44_ei_main;
-
-#define _(N, i, n, s) \
- case NAT_PROTOCOL_##N: \
- a->busy_##n##_port_bitmap = \
- clib_bitmap_set (a->busy_##n##_port_bitmap, port, 1); \
- break;
-
- switch (proto)
- {
- foreach_nat_protocol;
- default:
- nat_elog_info (nm, "unknown protocol");
- }
-
-#undef _
+ ASSERT (!nat44_ei_port_is_used (a, proto, port));
+ a->busy_port_bitmap[proto] =
+ clib_bitmap_set (a->busy_port_bitmap[proto], port, 1);
}
always_inline void
nat44_ei_port_put (nat44_ei_address_t *a, u8 proto, u16 port)
{
- nat44_ei_main_t *nm = &nat44_ei_main;
-
-#define _(N, i, n, s) \
- case NAT_PROTOCOL_##N: \
- a->busy_##n##_port_bitmap = \
- clib_bitmap_set (a->busy_##n##_port_bitmap, port, 0); \
- break;
-
- switch (proto)
- {
- foreach_nat_protocol;
- default:
- nat_elog_info (nm, "unknown protocol");
- }
-
-#undef _
-}
-
-always_inline bool
-nat44_ei_port_is_used (nat44_ei_address_t *a, u8 proto, u16 port)
-{
- nat44_ei_main_t *nm = &nat44_ei_main;
-
-#define _(N, i, n, s) \
- case NAT_PROTOCOL_##N: \
- return clib_bitmap_get (a->busy_##n##_port_bitmap, port);
-
- switch (proto)
- {
- foreach_nat_protocol;
- default:
- nat_elog_info (nm, "unknown protocol");
- }
-
-#undef _
-
- return 0;
+ ASSERT (nat44_ei_port_is_used (a, proto, port));
+ a->busy_port_bitmap[proto] =
+ clib_bitmap_set (a->busy_port_bitmap[proto], port, 0);
}
static u8 *
@@ -1304,7 +1263,6 @@ nat44_ei_set_outside_address_and_port (nat44_ei_address_t *addresses,
u32 thread_index, ip4_address_t addr,
u16 port, nat_protocol_t protocol)
{
- nat44_ei_main_t *nm = &nat44_ei_main;
nat44_ei_address_t *a = 0;
u32 address_index;
u16 port_host_byte_order = clib_net_to_host_u16 (port);
@@ -1315,21 +1273,13 @@ nat44_ei_set_outside_address_and_port (nat44_ei_address_t *addresses,
continue;
a = addresses + address_index;
- switch (protocol)
- {
-#define _(N, j, n, s) \
- case NAT_PROTOCOL_##N: \
- if (nat44_ei_port_is_used (a, NAT_PROTOCOL_##N, port_host_byte_order)) \
- return VNET_API_ERROR_INSTANCE_IN_USE; \
- nat44_ei_port_get (a, NAT_PROTOCOL_##N, port_host_byte_order); \
- a->busy_##n##_ports_per_thread[thread_index]++; \
- a->busy_##n##_ports++; \
- return 0;
- foreach_nat_protocol
-#undef _
- default : nat_elog_info (nm, "unknown protocol");
- return 1;
- }
+ if (nat44_ei_port_is_used (a, protocol, port_host_byte_order))
+ return VNET_API_ERROR_INSTANCE_IN_USE;
+
+ nat44_ei_port_get (a, protocol, port_host_byte_order);
+ a->busy_ports_per_thread[protocol][thread_index]++;
+ a->busy_ports[protocol]++;
+ return 0;
}
return VNET_API_ERROR_NO_SUCH_ENTRY;
@@ -1364,7 +1314,6 @@ nat44_ei_free_outside_address_and_port (nat44_ei_address_t *addresses,
u32 thread_index, ip4_address_t *addr,
u16 port, nat_protocol_t protocol)
{
- nat44_ei_main_t *nm = &nat44_ei_main;
nat44_ei_address_t *a;
u32 address_index;
u16 port_host_byte_order = clib_net_to_host_u16 (port);
@@ -1378,22 +1327,9 @@ nat44_ei_free_outside_address_and_port (nat44_ei_address_t *addresses,
ASSERT (address_index < vec_len (addresses));
a = addresses + address_index;
-
- switch (protocol)
- {
-#define _(N, i, n, s) \
- case NAT_PROTOCOL_##N: \
- ASSERT ( \
- nat44_ei_port_is_used (a, NAT_PROTOCOL_##N, port_host_byte_order)); \
- nat44_ei_port_put (a, NAT_PROTOCOL_##N, port_host_byte_order); \
- a->busy_##n##_ports--; \
- a->busy_##n##_ports_per_thread[thread_index]--; \
- break;
- foreach_nat_protocol
-#undef _
- default : nat_elog_info (nm, "unknown protocol");
- return;
- }
+ nat44_ei_port_put (a, protocol, port_host_byte_order);
+ a->busy_ports[protocol]--;
+ a->busy_ports_per_thread[protocol][thread_index]--;
}
void
@@ -1858,75 +1794,95 @@ nat44_ei_alloc_default_cb (nat44_ei_address_t *addresses, u32 fib_index,
if (vec_len (addresses) > 0)
{
-
int s_addr_offset = s_addr.as_u32 % vec_len (addresses);
for (i = s_addr_offset; i < vec_len (addresses); ++i)
{
a = addresses + i;
- switch (proto)
+
+ if (a->busy_ports_per_thread[proto][thread_index] < port_per_thread)
{
-#define _(N, j, n, s) \
- case NAT_PROTOCOL_##N: \
- if (a->busy_##n##_ports_per_thread[thread_index] < port_per_thread) \
- { \
- if (a->fib_index == fib_index) \
- { \
- while (1) \
- { \
- portnum = (port_per_thread * snat_thread_index) + \
- nat_random_port (&nm->random_seed, 0, \
- port_per_thread - 1) + \
- 1024; \
- if (nat44_ei_port_is_used (a, NAT_PROTOCOL_##N, portnum)) \
- continue; \
- nat44_ei_port_get (a, NAT_PROTOCOL_##N, portnum); \
- a->busy_##n##_ports_per_thread[thread_index]++; \
- a->busy_##n##_ports++; \
- *addr = a->addr; \
- *port = clib_host_to_net_u16 (portnum); \
- return 0; \
- } \
- } \
- else if (a->fib_index == ~0) \
- { \
- ga = a; \
- } \
- } \
- break;
- foreach_nat_protocol;
- default:
- nat_elog_info (nm, "unknown protocol");
- return 1;
+ if (a->fib_index == fib_index)
+ {
+ while (1)
+ {
+ portnum = (port_per_thread * snat_thread_index) +
+ nat_random_port (&nm->random_seed, 0,
+ port_per_thread - 1) +
+ 1024;
+ if (nat44_ei_port_is_used (a, proto, portnum))
+ continue;
+ nat44_ei_port_get (a, proto, portnum);
+ a->busy_ports_per_thread[proto][thread_index]++;
+ a->busy_ports[proto]++;
+ *addr = a->addr;
+ *port = clib_host_to_net_u16 (portnum);
+ return 0;
+ }
+ }
+ else if (a->fib_index == ~0)
+ {
+ ga = a;
+ }
}
}
for (i = 0; i < s_addr_offset; ++i)
{
a = addresses + i;
- switch (proto)
+ if (a->busy_ports_per_thread[proto][thread_index] < port_per_thread)
{
- foreach_nat_protocol;
- default:
- nat_elog_info (nm, "unknown protocol");
- return 1;
+ if (a->fib_index == fib_index)
+ {
+ while (1)
+ {
+ portnum = (port_per_thread * snat_thread_index) +
+ nat_random_port (&nm->random_seed, 0,
+ port_per_thread - 1) +
+ 1024;
+ if (nat44_ei_port_is_used (a, proto, portnum))
+ continue;
+ nat44_ei_port_get (a, proto, portnum);
+ a->busy_ports_per_thread[proto][thread_index]++;
+ a->busy_ports[proto]++;
+ *addr = a->addr;
+ *port = clib_host_to_net_u16 (portnum);
+ return 0;
+ }
+ }
+ else if (a->fib_index == ~0)
+ {
+ ga = a;
+ }
}
}
- if (ga)
- {
- a = ga;
- // fake fib index to reuse macro
- fib_index = ~0;
- switch (proto)
+
+ if (ga)
{
- foreach_nat_protocol;
- default : nat_elog_info (nm, "unknown protocol");
- return 1;
+ a = ga;
+ if (a->busy_ports_per_thread[proto][thread_index] < port_per_thread)
+ {
+ if (a->fib_index == ~0)
+ {
+ while (1)
+ {
+ portnum = (port_per_thread * snat_thread_index) +
+ nat_random_port (&nm->random_seed, 0,
+ port_per_thread - 1) +
+ 1024;
+ if (nat44_ei_port_is_used (a, proto, portnum))
+ continue;
+ nat44_ei_port_get (a, proto, portnum);
+ a->busy_ports_per_thread[proto][thread_index]++;
+ a->busy_ports[proto]++;
+ *addr = a->addr;
+ *port = clib_host_to_net_u16 (portnum);
+ return 0;
+ }
+ }
+ }
}
}
- }
-
-#undef _
/* Totally out of translations to use... */
nat_ipfix_logging_addresses_exhausted (thread_index, 0);
@@ -1948,30 +1904,20 @@ nat44_ei_alloc_range_cb (nat44_ei_address_t *addresses, u32 fib_index,
if (!vec_len (addresses))
goto exhausted;
- switch (proto)
- {
-#define _(N, i, n, s) \
- case NAT_PROTOCOL_##N: \
- if (a->busy_##n##_ports < ports) \
- { \
- while (1) \
- { \
- portnum = nat_random_port (&nm->random_seed, nm->start_port, \
- nm->end_port); \
- if (nat44_ei_port_is_used (a, NAT_PROTOCOL_##N, portnum)) \
- continue; \
- nat44_ei_port_get (a, NAT_PROTOCOL_##N, portnum); \
- a->busy_##n##_ports++; \
- *addr = a->addr; \
- *port = clib_host_to_net_u16 (portnum); \
- return 0; \
- } \
- } \
- break;
- foreach_nat_protocol
-#undef _
- default : nat_elog_info (nm, "unknown protocol");
- return 1;
+ if (a->busy_ports[proto] < ports)
+ {
+ while (1)
+ {
+ portnum =
+ nat_random_port (&nm->random_seed, nm->start_port, nm->end_port);
+ if (nat44_ei_port_is_used (a, proto, portnum))
+ continue;
+ nat44_ei_port_get (a, proto, portnum);
+ a->busy_ports[proto]++;
+ *addr = a->addr;
+ *port = clib_host_to_net_u16 (portnum);
+ return 0;
+ }
}
exhausted:
@@ -1995,32 +1941,22 @@ nat44_ei_alloc_mape_cb (nat44_ei_address_t *addresses, u32 fib_index,
if (!vec_len (addresses))
goto exhausted;
- switch (proto)
- {
-#define _(N, i, n, s) \
- case NAT_PROTOCOL_##N: \
- if (a->busy_##n##_ports < ports) \
- { \
- while (1) \
- { \
- A = nat_random_port (&nm->random_seed, 1, \
- pow2_mask (nm->psid_offset)); \
- j = nat_random_port (&nm->random_seed, 0, pow2_mask (m)); \
- portnum = A | (nm->psid << nm->psid_offset) | (j << (16 - m)); \
- if (nat44_ei_port_is_used (a, NAT_PROTOCOL_##N, portnum)) \
- continue; \
- nat44_ei_port_get (a, NAT_PROTOCOL_##N, portnum); \
- a->busy_##n##_ports++; \
- *addr = a->addr; \
- *port = clib_host_to_net_u16 (portnum); \
- return 0; \
- } \
- } \
- break;
- foreach_nat_protocol
-#undef _
- default : nat_elog_info (nm, "unknown protocol");
- return 1;
+ if (a->busy_ports[proto] < ports)
+ {
+ while (1)
+ {
+ A =
+ nat_random_port (&nm->random_seed, 1, pow2_mask (nm->psid_offset));
+ j = nat_random_port (&nm->random_seed, 0, pow2_mask (m));
+ portnum = A | (nm->psid << nm->psid_offset) | (j << (16 - m));
+ if (nat44_ei_port_is_used (a, proto, portnum))
+ continue;
+ nat44_ei_port_get (a, proto, portnum);
+ a->busy_ports[proto]++;
+ *addr = a->addr;
+ *port = clib_host_to_net_u16 (portnum);
+ return 0;
+ }
}
exhausted:
@@ -2171,29 +2107,18 @@ nat44_ei_reserve_port (ip4_address_t addr, u16 port, nat_protocol_t proto)
if (a->addr.as_u32 != addr.as_u32)
continue;
- switch (proto)
- {
-#define _(N, j, n, s) \
- case NAT_PROTOCOL_##N: \
- if (nat44_ei_port_is_used (a, NAT_PROTOCOL_##N, port)) \
- continue; \
- nat44_ei_port_get (a, NAT_PROTOCOL_##N, port); \
- if (port > 1024) \
- { \
- a->busy_##n##_ports++; \
- a->busy_##n##_ports_per_thread[ti]++; \
- } \
- break;
- foreach_nat_protocol
-#undef _
- default : nat_elog_info (nm, "unknown protocol");
- goto done;
- }
+ if (nat44_ei_port_is_used (a, proto, port))
+ continue;
+ nat44_ei_port_get (a, proto, port);
+ if (port > 1024)
+ {
+ a->busy_ports[proto]++;
+ a->busy_ports_per_thread[proto][ti]++;
+ }
return 0;
}
-done:
return 1;
}
@@ -2212,27 +2137,15 @@ nat44_ei_free_port (ip4_address_t addr, u16 port, nat_protocol_t proto)
if (a->addr.as_u32 != addr.as_u32)
continue;
- switch (proto)
- {
-#define _(N, j, n, s) \
- case NAT_PROTOCOL_##N: \
- nat44_ei_port_put (a, NAT_PROTOCOL_##N, port); \
- if (port > 1024) \
- { \
- a->busy_##n##_ports--; \
- a->busy_##n##_ports_per_thread[ti]--; \
- } \
- break;
- foreach_nat_protocol
-#undef _
- default : nat_elog_info (nm, "unknown protocol");
- goto done;
+ nat44_ei_port_put (a, proto, port);
+ if (port > 1024)
+ {
+ a->busy_ports[proto]--;
+ a->busy_ports_per_thread[proto][ti]--;
}
-
return 0;
}
-done:
return 1;
}
@@ -3053,14 +2966,15 @@ nat44_ei_add_address (ip4_address_t *addr, u32 vrf_id)
FIB_PROTOCOL_IP4, vrf_id, nm->fib_src_low);
}
-#define _(N, i, n, s) \
- ap->busy_##n##_port_bitmap = 0; \
- ap->busy_##n##_ports = 0; \
- ap->busy_##n##_ports_per_thread = 0; \
- vec_validate_init_empty (ap->busy_##n##_ports_per_thread, \
- tm->n_vlib_mains - 1, 0);
- foreach_nat_protocol
-#undef _
+ nat_protocol_t proto;
+ for (proto = 0; proto < NAT_N_PROTOCOLS; ++proto)
+ {
+ ap->busy_port_bitmap[proto] = 0;
+ ap->busy_ports[proto] = 0;
+ ap->busy_ports_per_thread[proto] = 0;
+ vec_validate_init_empty (ap->busy_ports_per_thread[proto],
+ tm->n_vlib_mains - 1, 0);
+ }
nat44_ei_add_del_addr_to_fib_foreach_out_if (addr, 1);
@@ -3116,7 +3030,8 @@ nat44_ei_del_address (ip4_address_t addr, u8 delete_sm)
}
/* Delete sessions using address */
- if (a->busy_tcp_ports || a->busy_udp_ports || a->busy_icmp_ports)
+ if (a->busy_ports[NAT_PROTOCOL_TCP] || a->busy_ports[NAT_PROTOCOL_UDP] ||
+ a->busy_ports[NAT_PROTOCOL_ICMP])
{
vec_foreach (tnm, nm->per_thread_data)
{
@@ -3145,11 +3060,13 @@ nat44_ei_del_address (ip4_address_t addr, u8 delete_sm)
fib_table_unlock (a->fib_index, FIB_PROTOCOL_IP4, nm->fib_src_low);
}
-#define _(N, i, n, s) vec_free (a->busy_##n##_ports_per_thread);
- foreach_nat_protocol
-#undef _
+ nat_protocol_t proto;
+ for (proto = 0; proto < NAT_N_PROTOCOLS; ++proto)
+ {
+ vec_free (a->busy_ports_per_thread[proto]);
+ }
- vec_del1 (nm->addresses, j);
+ vec_del1 (nm->addresses, j);
return 0;
}
diff --git a/src/plugins/nat/nat44-ei/nat44_ei.h b/src/plugins/nat/nat44-ei/nat44_ei.h
index c79cbfe5d57..b4aa0f26c0b 100644
--- a/src/plugins/nat/nat44-ei/nat44_ei.h
+++ b/src/plugins/nat/nat44-ei/nat44_ei.h
@@ -71,12 +71,9 @@ typedef struct
{
ip4_address_t addr;
u32 fib_index;
-#define _(N, i, n, s) \
- u32 busy_##n##_ports; \
- u32 *busy_##n##_ports_per_thread; \
- uword *busy_##n##_port_bitmap;
- foreach_nat_protocol
-#undef _
+ u32 busy_ports[NAT_N_PROTOCOLS];
+ u32 *busy_ports_per_thread[NAT_N_PROTOCOLS];
+ uword *busy_port_bitmap[NAT_N_PROTOCOLS];
} nat44_ei_address_t;
clib_error_t *nat44_ei_api_hookup (vlib_main_t *vm);
diff --git a/src/plugins/nat/nat44-ei/nat44_ei_cli.c b/src/plugins/nat/nat44-ei/nat44_ei_cli.c
index 2fe01b07c9e..75c95179b40 100644
--- a/src/plugins/nat/nat44-ei/nat44_ei_cli.c
+++ b/src/plugins/nat/nat44-ei/nat44_ei_cli.c
@@ -841,7 +841,7 @@ nat44_ei_show_addresses_command_fn (vlib_main_t *vm, unformat_input_t *input,
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);
+ vlib_cli_output (vm, " %d busy %s ports", ap->busy_ports[i], s);
foreach_nat_protocol
#undef _
}