#include <vnet/plugin/plugin.h>
#include <vpp/app/version.h>
#include <vnet/api_errno.h>
+#include <vnet/udp/udp.h>
//GC runs at most once every so many seconds
#define LB_GARBAGE_RUN 60
lb_main_t lb_main;
-#define lb_get_writer_lock() do {} while(__sync_lock_test_and_set (lb_main.writer_lock, 1))
-#define lb_put_writer_lock() lb_main.writer_lock[0] = 0
+#define lb_get_writer_lock() do {} while(clib_atomic_test_and_set (lb_main.writer_lock))
+#define lb_put_writer_lock() clib_atomic_release (lb_main.writer_lock)
static void lb_as_stack (lb_as_t *as);
const static char * const lb_dpo_gre4_ip6[] = { "lb6-gre4" , NULL };
const static char* const * const lb_dpo_gre4_nodes[DPO_PROTO_NUM] =
{
- [DPO_PROTO_IP4] = lb_dpo_gre4_ip4,
- [DPO_PROTO_IP6] = lb_dpo_gre4_ip6,
+ [DPO_PROTO_IP4] = lb_dpo_gre4_ip4,
+ [DPO_PROTO_IP6] = lb_dpo_gre4_ip6,
};
const static char * const lb_dpo_gre6_ip4[] = { "lb4-gre6" , NULL };
const static char * const lb_dpo_gre6_ip6[] = { "lb6-gre6" , NULL };
const static char* const * const lb_dpo_gre6_nodes[DPO_PROTO_NUM] =
{
- [DPO_PROTO_IP4] = lb_dpo_gre6_ip4,
- [DPO_PROTO_IP6] = lb_dpo_gre6_ip6,
+ [DPO_PROTO_IP4] = lb_dpo_gre6_ip4,
+ [DPO_PROTO_IP6] = lb_dpo_gre6_ip6,
};
-const static char * const lb_dpo_l3dsr_ip4[] = { "lb4-l3dsr" , NULL };
+const static char * const lb_dpo_gre4_ip4_port[] = { "lb4-gre4-port" , NULL };
+const static char * const lb_dpo_gre4_ip6_port[] = { "lb6-gre4-port" , NULL };
+const static char* const * const lb_dpo_gre4_port_nodes[DPO_PROTO_NUM] =
+ {
+ [DPO_PROTO_IP4] = lb_dpo_gre4_ip4_port,
+ [DPO_PROTO_IP6] = lb_dpo_gre4_ip6_port,
+ };
+
+const static char * const lb_dpo_gre6_ip4_port[] = { "lb4-gre6-port" , NULL };
+const static char * const lb_dpo_gre6_ip6_port[] = { "lb6-gre6-port" , NULL };
+const static char* const * const lb_dpo_gre6_port_nodes[DPO_PROTO_NUM] =
+ {
+ [DPO_PROTO_IP4] = lb_dpo_gre6_ip4_port,
+ [DPO_PROTO_IP6] = lb_dpo_gre6_ip6_port,
+ };
+
+const static char * const lb_dpo_l3dsr_ip4[] = {"lb4-l3dsr" , NULL};
const static char* const * const lb_dpo_l3dsr_nodes[DPO_PROTO_NUM] =
{
- [DPO_PROTO_IP4] = lb_dpo_l3dsr_ip4,
+ [DPO_PROTO_IP4] = lb_dpo_l3dsr_ip4,
+ };
+
+const static char * const lb_dpo_l3dsr_ip4_port[] = {"lb4-l3dsr-port" , NULL};
+const static char* const * const lb_dpo_l3dsr_port_nodes[DPO_PROTO_NUM] =
+ {
+ [DPO_PROTO_IP4] = lb_dpo_l3dsr_ip4_port,
+ };
+
+const static char * const lb_dpo_nat4_ip4_port[] = { "lb4-nat4-port" , NULL };
+const static char* const * const lb_dpo_nat4_port_nodes[DPO_PROTO_NUM] =
+ {
+ [DPO_PROTO_IP4] = lb_dpo_nat4_ip4_port,
+ };
+
+const static char * const lb_dpo_nat6_ip6_port[] = { "lb6-nat6-port" , NULL };
+const static char* const * const lb_dpo_nat6_port_nodes[DPO_PROTO_NUM] =
+ {
+ [DPO_PROTO_IP6] = lb_dpo_nat6_ip6_port,
};
u32 lb_hash_time_now(vlib_main_t * vm)
[LB_VIP_TYPE_IP4_GRE6] = "ip4-gre6",
[LB_VIP_TYPE_IP4_GRE4] = "ip4-gre4",
[LB_VIP_TYPE_IP4_L3DSR] = "ip4-l3dsr",
+ [LB_VIP_TYPE_IP4_NAT4] = "ip4-nat4",
+ [LB_VIP_TYPE_IP6_NAT6] = "ip6-nat6",
};
u8 *format_lb_vip_type (u8 * s, va_list * args)
u8 *format_lb_vip (u8 * s, va_list * args)
{
lb_vip_t *vip = va_arg (*args, lb_vip_t *);
- return format(s, "%U %U new_size:%u #as:%u%s",
+ s = format(s, "%U %U new_size:%u #as:%u%s",
format_lb_vip_type, vip->type,
format_ip46_prefix, &vip->prefix, vip->plen, IP46_TYPE_ANY,
vip->new_flow_table_mask + 1,
pool_elts(vip->as_indexes),
(vip->flags & LB_VIP_FLAGS_USED)?"":" removed");
+
+ if (vip->port != 0)
+ {
+ s = format(s, " protocol:%u port:%u ", vip->protocol, vip->port);
+ }
+
+ if (vip->type == LB_VIP_TYPE_IP4_L3DSR)
+ {
+ s = format(s, " dscp:%u", vip->encap_args.dscp);
+ }
+ else if ((vip->type == LB_VIP_TYPE_IP4_NAT4)
+ || (vip->type == LB_VIP_TYPE_IP6_NAT6))
+ {
+ s = format (s, " type:%s port:%u target_port:%u",
+ (vip->encap_args.srv_type == LB_SRV_TYPE_CLUSTERIP)?"clusterip":
+ "nodeport",
+ ntohs(vip->port), ntohs(vip->encap_args.target_port));
+ }
+
+ return s;
}
u8 *format_lb_as (u8 * s, va_list * args)
{
lb_as_t *as = va_arg (*args, lb_as_t *);
return format(s, "%U %s", format_ip46_address,
- &as->address, IP46_TYPE_ANY,
- (as->flags & LB_AS_FLAGS_USED)?"used":"removed");
+ &as->address, IP46_TYPE_ANY,
+ (as->flags & LB_AS_FLAGS_USED)?"used":"removed");
}
u8 *format_lb_vip_detailed (u8 * s, va_list * args)
format_white_space, indent,
vip->new_flow_table_mask + 1);
+ if (vip->port != 0)
+ {
+ s = format(s, "%U protocol:%u port:%u\n",
+ format_white_space, indent,
+ vip->protocol, vip->port);
+ }
+
if (vip->type == LB_VIP_TYPE_IP4_L3DSR)
{
s = format(s, "%U dscp:%u\n",
format_white_space, indent,
- vip->dscp);
+ vip->encap_args.dscp);
+ }
+ else if ((vip->type == LB_VIP_TYPE_IP4_NAT4)
+ || (vip->type == LB_VIP_TYPE_IP6_NAT6))
+ {
+ s = format (s, "%U type:%s port:%u target_port:%u",
+ format_white_space, indent,
+ (vip->encap_args.srv_type == LB_SRV_TYPE_CLUSTERIP)?"clusterip":
+ "nodeport",
+ ntohs(vip->port), ntohs(vip->encap_args.target_port));
}
//Print counters
format_white_space, indent);
u32 i;
for (i=0; i<LB_N_VIP_COUNTERS; i++)
- s = format(s, "%U %s: %d\n",
+ s = format(s, "%U %s: %Lu\n",
format_white_space, indent,
lbm->vip_counters[i].name,
vlib_get_simple_counter(&lbm->vip_counters[i], vip - lbm->vips));
u32 *as_index;
pool_foreach(as_index, vip->as_indexes, {
as = &lbm->ass[*as_index];
- s = format(s, "%U %U %d buckets %d flows dpo:%u %s\n",
+ s = format(s, "%U %U %u buckets %Lu flows dpo:%u %s\n",
format_white_space, indent,
format_ip46_address, &as->address, IP46_TYPE_ANY,
count[as - lbm->ass],
});
vec_free(count);
-
- /*
- s = format(s, "%U new flows table:\n", format_white_space, indent);
- lb_new_flow_entry_t *nfe;
- vec_foreach(nfe, vip->new_flow_table) {
- s = format(s, "%U %d: %d\n", format_white_space, indent, nfe - vip->new_flow_table, nfe->as_index);
- }
- */
return s;
}
static void lb_vip_garbage_collection(lb_vip_t *vip)
{
lb_main_t *lbm = &lb_main;
+ lb_snat4_key_t m_key4;
+ clib_bihash_kv_8_8_t kv4, value4;
+ lb_snat6_key_t m_key6;
+ clib_bihash_kv_24_8_t kv6, value6;
+ lb_snat_mapping_t *m = 0;
ASSERT (lbm->writer_lock[0]);
u32 now = (u32) vlib_time_now(vlib_get_main());
pool_foreach(as_index, vip->as_indexes, {
as = &lbm->ass[*as_index];
if (!(as->flags & LB_AS_FLAGS_USED) && //Not used
- clib_u32_loop_gt(now, as->last_used + LB_CONCURRENCY_TIMEOUT) && //Not recently used
- (vlib_refcount_get(&lbm->as_refcount, as - lbm->ass) == 0))
- { //Not referenced
- fib_entry_child_remove(as->next_hop_fib_entry_index,
- as->next_hop_child_index);
- fib_table_entry_delete_index(as->next_hop_fib_entry_index,
- FIB_SOURCE_RR);
- as->next_hop_fib_entry_index = FIB_NODE_INDEX_INVALID;
-
- pool_put(vip->as_indexes, as_index);
- pool_put(lbm->ass, as);
- }
+ clib_u32_loop_gt(now, as->last_used + LB_CONCURRENCY_TIMEOUT) &&
+ (vlib_refcount_get(&lbm->as_refcount, as - lbm->ass) == 0))
+ { //Not referenced
+
+ if (lb_vip_is_nat4_port(vip)) {
+ m_key4.addr = as->address.ip4;
+ m_key4.port = vip->encap_args.target_port;
+ m_key4.protocol = 0;
+ m_key4.fib_index = 0;
+
+ kv4.key = m_key4.as_u64;
+ if(!clib_bihash_search_8_8(&lbm->mapping_by_as4, &kv4, &value4))
+ m = pool_elt_at_index (lbm->snat_mappings, value4.value);
+ ASSERT (m);
+
+ kv4.value = m - lbm->snat_mappings;
+ clib_bihash_add_del_8_8(&lbm->mapping_by_as4, &kv4, 0);
+ pool_put (lbm->snat_mappings, m);
+ } else if (lb_vip_is_nat6_port(vip)) {
+ m_key6.addr.as_u64[0] = as->address.ip6.as_u64[0];
+ m_key6.addr.as_u64[1] = as->address.ip6.as_u64[1];
+ m_key6.port = vip->encap_args.target_port;
+ m_key6.protocol = 0;
+ m_key6.fib_index = 0;
+
+ kv6.key[0] = m_key6.as_u64[0];
+ kv6.key[1] = m_key6.as_u64[1];
+ kv6.key[2] = m_key6.as_u64[2];
+
+ if (!clib_bihash_search_24_8 (&lbm->mapping_by_as6, &kv6, &value6))
+ m = pool_elt_at_index (lbm->snat_mappings, value6.value);
+ ASSERT (m);
+
+ kv6.value = m - lbm->snat_mappings;
+ clib_bihash_add_del_24_8(&lbm->mapping_by_as6, &kv6, 0);
+ pool_put (lbm->snat_mappings, m);
+ }
+ fib_entry_child_remove(as->next_hop_fib_entry_index,
+ as->next_hop_child_index);
+ fib_table_entry_delete_index(as->next_hop_fib_entry_index,
+ FIB_SOURCE_RR);
+ as->next_hop_fib_entry_index = FIB_NODE_INDEX_INVALID;
+
+ pool_put(vip->as_indexes, as_index);
+ pool_put(lbm->ass, as);
+ }
});
}
lb_new_flow_entry_t *new_flow_table = 0;
lb_as_t *as;
lb_pseudorand_t *pr, *sort_arr = 0;
- u32 count;
ASSERT (lbm->writer_lock[0]); //We must have the lock
}
//First, let's sort the ASs
- sort_arr = 0;
vec_alloc(sort_arr, pool_elts(vip->as_indexes));
i = 0;
}
}
- vec_free(sort_arr);
-
finished:
-
-//Count number of changed entries
- count = 0;
- for (i=0; i<vec_len(new_flow_table); i++)
- if (vip->new_flow_table == 0 ||
- new_flow_table[i].as_index != vip->new_flow_table[i].as_index)
- count++;
+ vec_free(sort_arr);
old_table = vip->new_flow_table;
vip->new_flow_table = new_flow_table;
return 0;
}
+
+
static
-int lb_vip_find_index_with_lock(ip46_address_t *prefix, u8 plen, u32 *vip_index)
+int lb_vip_port_find_index(ip46_address_t *prefix, u8 plen,
+ u8 protocol, u16 port,
+ lb_lkp_type_t lkp_type,
+ u32 *vip_index)
{
lb_main_t *lbm = &lb_main;
lb_vip_t *vip;
if ((vip->flags & LB_AS_FLAGS_USED) &&
vip->plen == plen &&
vip->prefix.as_u64[0] == prefix->as_u64[0] &&
- vip->prefix.as_u64[1] == prefix->as_u64[1]) {
- *vip_index = vip - lbm->vips;
- return 0;
- }
+ vip->prefix.as_u64[1] == prefix->as_u64[1])
+ {
+ if((lkp_type == LB_LKP_SAME_IP_PORT &&
+ vip->protocol == protocol &&
+ vip->port == port) ||
+ (lkp_type == LB_LKP_ALL_PORT_IP &&
+ vip->port == 0) ||
+ (lkp_type == LB_LKP_DIFF_IP_PORT &&
+ (vip->protocol != protocol ||
+ vip->port != port) ) )
+ {
+ *vip_index = vip - lbm->vips;
+ return 0;
+ }
+ }
});
return VNET_API_ERROR_NO_SUCH_ENTRY;
}
-int lb_vip_find_index(ip46_address_t *prefix, u8 plen, u32 *vip_index)
+static
+int lb_vip_port_find_index_with_lock(ip46_address_t *prefix, u8 plen,
+ u8 protocol, u16 port, u32 *vip_index)
+{
+ return lb_vip_port_find_index(prefix, plen, protocol, port,
+ LB_LKP_SAME_IP_PORT, vip_index);
+}
+
+static
+int lb_vip_port_find_all_port_vip(ip46_address_t *prefix, u8 plen,
+ u32 *vip_index)
+{
+ return lb_vip_port_find_index(prefix, plen, ~0, 0,
+ LB_LKP_ALL_PORT_IP, vip_index);
+}
+
+/* Find out per-port-vip entry with different protocol and port */
+static
+int lb_vip_port_find_diff_port(ip46_address_t *prefix, u8 plen,
+ u8 protocol, u16 port, u32 *vip_index)
+{
+ return lb_vip_port_find_index(prefix, plen, protocol, port,
+ LB_LKP_DIFF_IP_PORT, vip_index);
+}
+
+int lb_vip_find_index(ip46_address_t *prefix, u8 plen, u8 protocol,
+ u16 port, u32 *vip_index)
{
int ret;
lb_get_writer_lock();
- ret = lb_vip_find_index_with_lock(prefix, plen, vip_index);
+ ret = lb_vip_port_find_index_with_lock(prefix, plen,
+ protocol, port, vip_index);
lb_put_writer_lock();
return ret;
}
as = &lbm->ass[*asi];
if (as->vip_index == (vip - lbm->vips) &&
as->address.as_u64[0] == address->as_u64[0] &&
- as->address.as_u64[1] == address->as_u64[1]) {
+ as->address.as_u64[1] == address->as_u64[1])
+ {
*as_index = as - lbm->ass;
return 0;
}
u32 *to_be_updated = 0;
u32 i;
u32 *ip;
+ lb_snat_mapping_t *m;
//Sanity check
while (n--) {
*/
fib_prefix_t nh = {};
if (lb_encap_is_ip4(vip)) {
- nh.fp_addr.ip4 = as->address.ip4;
- nh.fp_len = 32;
- nh.fp_proto = FIB_PROTOCOL_IP4;
+ nh.fp_addr.ip4 = as->address.ip4;
+ nh.fp_len = 32;
+ nh.fp_proto = FIB_PROTOCOL_IP4;
} else {
- nh.fp_addr.ip6 = as->address.ip6;
- nh.fp_len = 128;
- nh.fp_proto = FIB_PROTOCOL_IP6;
+ nh.fp_addr.ip6 = as->address.ip6;
+ nh.fp_len = 128;
+ nh.fp_proto = FIB_PROTOCOL_IP6;
}
as->next_hop_fib_entry_index =
- fib_table_entry_special_add(0,
- &nh,
- FIB_SOURCE_RR,
- FIB_ENTRY_FLAG_NONE);
+ fib_table_entry_special_add(0,
+ &nh,
+ FIB_SOURCE_RR,
+ FIB_ENTRY_FLAG_NONE);
as->next_hop_child_index =
- fib_entry_child_add(as->next_hop_fib_entry_index,
- lbm->fib_node_type,
- as - lbm->ass);
+ fib_entry_child_add(as->next_hop_fib_entry_index,
+ lbm->fib_node_type,
+ as - lbm->ass);
lb_as_stack(as);
+
+ if ( lb_vip_is_nat4_port(vip) || lb_vip_is_nat6_port(vip) )
+ {
+ /* Add SNAT static mapping */
+ pool_get (lbm->snat_mappings, m);
+ clib_memset (m, 0, sizeof (*m));
+ if (lb_vip_is_nat4_port(vip)) {
+ lb_snat4_key_t m_key4;
+ clib_bihash_kv_8_8_t kv4;
+ m_key4.addr = as->address.ip4;
+ m_key4.port = vip->encap_args.target_port;
+ m_key4.protocol = 0;
+ m_key4.fib_index = 0;
+
+ if (vip->encap_args.srv_type == LB_SRV_TYPE_CLUSTERIP)
+ {
+ m->src_ip.ip4 = vip->prefix.ip4;
+ }
+ else if (vip->encap_args.srv_type == LB_SRV_TYPE_NODEPORT)
+ {
+ m->src_ip.ip4 = lbm->ip4_src_address;
+ }
+ m->src_ip_is_ipv6 = 0;
+ m->as_ip.ip4 = as->address.ip4;
+ m->as_ip_is_ipv6 = 0;
+ m->src_port = vip->port;
+ m->target_port = vip->encap_args.target_port;
+ m->vrf_id = 0;
+ m->fib_index = 0;
+
+ kv4.key = m_key4.as_u64;
+ kv4.value = m - lbm->snat_mappings;
+ clib_bihash_add_del_8_8(&lbm->mapping_by_as4, &kv4, 1);
+ } else {
+ lb_snat6_key_t m_key6;
+ clib_bihash_kv_24_8_t kv6;
+ m_key6.addr.as_u64[0] = as->address.ip6.as_u64[0];
+ m_key6.addr.as_u64[1] = as->address.ip6.as_u64[1];
+ m_key6.port = vip->encap_args.target_port;
+ m_key6.protocol = 0;
+ m_key6.fib_index = 0;
+
+ if (vip->encap_args.srv_type == LB_SRV_TYPE_CLUSTERIP)
+ {
+ m->src_ip.ip6.as_u64[0] = vip->prefix.ip6.as_u64[0];
+ m->src_ip.ip6.as_u64[1] = vip->prefix.ip6.as_u64[1];
+ }
+ else if (vip->encap_args.srv_type == LB_SRV_TYPE_NODEPORT)
+ {
+ m->src_ip.ip6.as_u64[0] = lbm->ip6_src_address.as_u64[0];
+ m->src_ip.ip6.as_u64[1] = lbm->ip6_src_address.as_u64[1];
+ }
+ m->src_ip_is_ipv6 = 1;
+ m->as_ip.ip6.as_u64[0] = as->address.ip6.as_u64[0];
+ m->as_ip.ip6.as_u64[1] = as->address.ip6.as_u64[1];
+ m->as_ip_is_ipv6 = 1;
+ m->src_port = vip->port;
+ m->target_port = vip->encap_args.target_port;
+ m->vrf_id = 0;
+ m->fib_index = 0;
+
+ kv6.key[0] = m_key6.as_u64[0];
+ kv6.key[1] = m_key6.as_u64[1];
+ kv6.key[2] = m_key6.as_u64[2];
+ kv6.value = m - lbm->snat_mappings;
+ clib_bihash_add_del_24_8(&lbm->mapping_by_as6, &kv6, 1);
+ }
+ }
}
vec_free(to_be_added);
return 0;
}
-int lb_vip_del_ass_withlock(u32 vip_index, ip46_address_t *addresses, u32 n)
+int
+lb_flush_vip_as (u32 vip_index, u32 as_index)
+{
+ u32 thread_index;
+ vlib_thread_main_t *tm = vlib_get_thread_main();
+ lb_main_t *lbm = &lb_main;
+
+ for(thread_index = 0; thread_index < tm->n_vlib_mains; thread_index++ ) {
+ lb_hash_t *h = lbm->per_cpu[thread_index].sticky_ht;
+ if (h != NULL) {
+ u32 i;
+ lb_hash_bucket_t *b;
+
+ lb_hash_foreach_entry(h, b, i) {
+ if ((vip_index == ~0)
+ || ((b->vip[i] == vip_index) && (as_index == ~0))
+ || ((b->vip[i] == vip_index) && (b->value[i] == as_index)))
+ {
+ vlib_refcount_add(&lbm->as_refcount, thread_index, b->value[i], -1);
+ vlib_refcount_add(&lbm->as_refcount, thread_index, 0, 1);
+ b->vip[i] = ~0;
+ b->value[i] = ~0;
+ }
+ }
+ if (vip_index == ~0)
+ {
+ lb_hash_free(h);
+ lbm->per_cpu[thread_index].sticky_ht = 0;
+ }
+ }
+ }
+
+ return 0;
+}
+
+int lb_vip_del_ass_withlock(u32 vip_index, ip46_address_t *addresses, u32 n,
+ u8 flush)
{
lb_main_t *lbm = &lb_main;
u32 now = (u32) vlib_time_now(vlib_get_main());
u32 *ip = 0;
+ u32 as_index = 0;
lb_vip_t *vip;
if (!(vip = lb_vip_get_by_index(vip_index))) {
u32 *indexes = NULL;
while (n--) {
- u32 i;
- if (lb_as_find_index_vip(vip, &addresses[n], &i)) {
+ if (lb_as_find_index_vip(vip, &addresses[n], &as_index)) {
vec_free(indexes);
return VNET_API_ERROR_NO_SUCH_ENTRY;
}
}
}
- vec_add1(indexes, i);
+ vec_add1(indexes, as_index);
next:
continue;
}
vec_foreach(ip, indexes) {
lbm->ass[*ip].flags &= ~LB_AS_FLAGS_USED;
lbm->ass[*ip].last_used = now;
+
+ if(flush)
+ {
+ /* flush flow table for deleted ASs*/
+ lb_flush_vip_as(vip_index, *ip);
+ }
}
//Recompute flows
return 0;
}
-int lb_vip_del_ass(u32 vip_index, ip46_address_t *addresses, u32 n)
+int lb_vip_del_ass(u32 vip_index, ip46_address_t *addresses, u32 n, u8 flush)
{
lb_get_writer_lock();
- int ret = lb_vip_del_ass_withlock(vip_index, addresses, n);
+ int ret = lb_vip_del_ass_withlock(vip_index, addresses, n, flush);
lb_put_writer_lock();
+
return ret;
}
+static int
+lb_vip_prefix_index_alloc (lb_main_t *lbm)
+{
+ /*
+ * Check for dynamically allocaetd instance number.
+ */
+ u32 bit;
+
+ bit = clib_bitmap_first_clear (lbm->vip_prefix_indexes);
+
+ lbm->vip_prefix_indexes = clib_bitmap_set(lbm->vip_prefix_indexes, bit, 1);
+
+ return bit;
+}
+
+static int
+lb_vip_prefix_index_free (lb_main_t *lbm, u32 instance)
+{
+
+ if (clib_bitmap_get (lbm->vip_prefix_indexes, instance) == 0)
+ {
+ return -1;
+ }
+
+ lbm->vip_prefix_indexes = clib_bitmap_set (lbm->vip_prefix_indexes,
+ instance, 0);
+
+ return 0;
+}
+
/**
* Add the VIP adjacency to the ip4 or ip6 fib
*/
-static void lb_vip_add_adjacency(lb_main_t *lbm, lb_vip_t *vip)
+static void lb_vip_add_adjacency(lb_main_t *lbm, lb_vip_t *vip,
+ u32 *vip_prefix_index)
{
dpo_proto_t proto = 0;
dpo_type_t dpo_type = 0;
+ u32 vip_idx = 0;
+
+ if (vip->port != 0)
+ {
+ /* for per-port vip, if VIP adjacency has been added,
+ * no need to add adjacency. */
+ if (!lb_vip_port_find_diff_port(&(vip->prefix), vip->plen,
+ vip->protocol, vip->port, &vip_idx))
+ {
+ return;
+ }
+
+ /* Allocate an index for per-port vip */
+ *vip_prefix_index = lb_vip_prefix_index_alloc(lbm);
+ }
+ else
+ {
+ *vip_prefix_index = vip - lbm->vips;
+ }
dpo_id_t dpo = DPO_INVALID;
fib_prefix_t pfx = {};
- if (lb_vip_is_ip4(vip)) {
+ if (lb_vip_is_ip4(vip->type)) {
pfx.fp_addr.ip4 = vip->prefix.ip4;
pfx.fp_len = vip->plen - 96;
pfx.fp_proto = FIB_PROTOCOL_IP4;
proto = DPO_PROTO_IP6;
}
- if(lb_vip_is_gre4(vip))
+ if (lb_vip_is_gre4(vip))
dpo_type = lbm->dpo_gre4_type;
else if (lb_vip_is_gre6(vip))
dpo_type = lbm->dpo_gre6_type;
+ else if (lb_vip_is_gre4_port(vip))
+ dpo_type = lbm->dpo_gre4_port_type;
+ else if (lb_vip_is_gre6_port(vip))
+ dpo_type = lbm->dpo_gre6_port_type;
else if (lb_vip_is_l3dsr(vip))
dpo_type = lbm->dpo_l3dsr_type;
-
- dpo_set(&dpo, dpo_type, proto, vip - lbm->vips);
+ else if (lb_vip_is_l3dsr_port(vip))
+ dpo_type = lbm->dpo_l3dsr_port_type;
+ else if(lb_vip_is_nat4_port(vip))
+ dpo_type = lbm->dpo_nat4_port_type;
+ else if (lb_vip_is_nat6_port(vip))
+ dpo_type = lbm->dpo_nat6_port_type;
+
+ dpo_set(&dpo, dpo_type, proto, *vip_prefix_index);
fib_table_entry_special_dpo_add(0,
- &pfx,
- FIB_SOURCE_PLUGIN_HI,
- FIB_ENTRY_FLAG_EXCLUSIVE,
- &dpo);
+ &pfx,
+ FIB_SOURCE_PLUGIN_HI,
+ FIB_ENTRY_FLAG_EXCLUSIVE,
+ &dpo);
dpo_reset(&dpo);
}
+/**
+ * Add the VIP filter entry
+ */
+static int lb_vip_add_port_filter(lb_main_t *lbm, lb_vip_t *vip,
+ u32 vip_prefix_index, u32 vip_idx)
+{
+ vip_port_key_t key;
+ clib_bihash_kv_8_8_t kv;
+
+ key.vip_prefix_index = vip_prefix_index;
+ key.protocol = vip->protocol;
+ key.port = clib_host_to_net_u16(vip->port);
+ key.rsv = 0;
+
+ kv.key = key.as_u64;
+ kv.value = vip_idx;
+ clib_bihash_add_del_8_8(&lbm->vip_index_per_port, &kv, 1);
+
+ return 0;
+}
+
+/**
+ * Del the VIP filter entry
+ */
+static int lb_vip_del_port_filter(lb_main_t *lbm, lb_vip_t *vip)
+{
+ vip_port_key_t key;
+ clib_bihash_kv_8_8_t kv, value;
+ lb_vip_t *m = 0;
+
+ key.vip_prefix_index = vip->vip_prefix_index;
+ key.protocol = vip->protocol;
+ key.port = clib_host_to_net_u16(vip->port);
+
+ kv.key = key.as_u64;
+ if(clib_bihash_search_8_8(&lbm->vip_index_per_port, &kv, &value) == 0)
+ m = pool_elt_at_index (lbm->vips, value.value);
+ ASSERT (m);
+
+ kv.value = m - lbm->vips;
+ clib_bihash_add_del_8_8(&lbm->vip_index_per_port, &kv, 0);
+
+ return 0;
+}
+
/**
* Deletes the adjacency associated with the VIP
*/
static void lb_vip_del_adjacency(lb_main_t *lbm, lb_vip_t *vip)
{
fib_prefix_t pfx = {};
- if (lb_vip_is_ip4(vip)) {
+ u32 vip_idx = 0;
+
+ if (vip->port != 0)
+ {
+ /* If this vip adjacency is used by other per-port vip,
+ * no need to del this adjacency. */
+ if (!lb_vip_port_find_diff_port(&(vip->prefix), vip->plen,
+ vip->protocol, vip->port, &vip_idx))
+ {
+ lb_put_writer_lock();
+ return;
+ }
+
+ /* Return vip_prefix_index for per-port vip */
+ lb_vip_prefix_index_free(lbm, vip->vip_prefix_index);
+
+ }
+
+ if (lb_vip_is_ip4(vip->type)) {
pfx.fp_addr.ip4 = vip->prefix.ip4;
pfx.fp_len = vip->plen - 96;
pfx.fp_proto = FIB_PROTOCOL_IP4;
fib_table_entry_special_remove(0, &pfx, FIB_SOURCE_PLUGIN_HI);
}
-int lb_vip_add(ip46_address_t *prefix, u8 plen, lb_vip_type_t type, u8 dscp,
- u32 new_length, u32 *vip_index)
+int lb_vip_add(lb_vip_add_args_t args, u32 *vip_index)
{
lb_main_t *lbm = &lb_main;
+ vlib_main_t *vm = vlib_get_main();
lb_vip_t *vip;
+ lb_vip_type_t type = args.type;
+ u32 vip_prefix_index = 0;
lb_get_writer_lock();
- ip46_prefix_normalize(prefix, plen);
+ ip46_prefix_normalize(&(args.prefix), args.plen);
- if (!lb_vip_find_index_with_lock(prefix, plen, vip_index)) {
- lb_put_writer_lock();
- return VNET_API_ERROR_VALUE_EXIST;
- }
+ if (!lb_vip_port_find_index_with_lock(&(args.prefix), args.plen,
+ args.protocol, args.port,
+ vip_index))
+ {
+ lb_put_writer_lock();
+ return VNET_API_ERROR_VALUE_EXIST;
+ }
- if (!is_pow2(new_length)) {
+ /* Make sure we can't add a per-port VIP entry
+ * when there already is an all-port VIP for the same prefix. */
+ if ((args.port != 0) &&
+ !lb_vip_port_find_all_port_vip(&(args.prefix), args.plen, vip_index))
+ {
+ lb_put_writer_lock();
+ return VNET_API_ERROR_VALUE_EXIST;
+ }
+
+ /* Make sure we can't add a all-port VIP entry
+ * when there already is an per-port VIP for the same prefix. */
+ if ((args.port == 0) &&
+ !lb_vip_port_find_diff_port(&(args.prefix), args.plen,
+ args.protocol, args.port, vip_index))
+ {
+ lb_put_writer_lock();
+ return VNET_API_ERROR_VALUE_EXIST;
+ }
+
+ /* Make sure all VIP for a given prefix (using different ports) have the same type. */
+ if ((args.port != 0) &&
+ !lb_vip_port_find_diff_port(&(args.prefix), args.plen,
+ args.protocol, args.port, vip_index)
+ && (args.type != lbm->vips[*vip_index].type))
+ {
+ lb_put_writer_lock();
+ return VNET_API_ERROR_INVALID_ARGUMENT;
+ }
+
+ if (!is_pow2(args.new_length)) {
lb_put_writer_lock();
return VNET_API_ERROR_INVALID_MEMORY_SIZE;
}
- if (ip46_prefix_is_ip4(prefix, plen) &&
- (type != LB_VIP_TYPE_IP4_GRE4) &&
- (type != LB_VIP_TYPE_IP4_GRE6) &&
- (type != LB_VIP_TYPE_IP4_L3DSR))
+ if (ip46_prefix_is_ip4(&(args.prefix), args.plen) &&
+ !lb_vip_is_ip4(type)) {
+ lb_put_writer_lock();
return VNET_API_ERROR_INVALID_ADDRESS_FAMILY;
+ }
- if ((!ip46_prefix_is_ip4(prefix, plen)) &&
- (type != LB_VIP_TYPE_IP6_GRE4) &&
- (type != LB_VIP_TYPE_IP6_GRE6))
+ if ((!ip46_prefix_is_ip4(&(args.prefix), args.plen)) &&
+ !lb_vip_is_ip6(type)) {
+ lb_put_writer_lock();
return VNET_API_ERROR_INVALID_ADDRESS_FAMILY;
+ }
- if ((type == LB_VIP_TYPE_IP4_L3DSR) && (dscp >= 64 ) )
+ if ((type == LB_VIP_TYPE_IP4_L3DSR) &&
+ (args.encap_args.dscp >= 64) )
{
+ lb_put_writer_lock();
return VNET_API_ERROR_VALUE_EXIST;
}
pool_get(lbm->vips, vip);
//Init
- vip->prefix = *prefix;
- vip->plen = plen;
+ memcpy (&(vip->prefix), &(args.prefix), sizeof(args.prefix));
+ vip->plen = args.plen;
+ if (args.port != 0)
+ {
+ vip->protocol = args.protocol;
+ vip->port = args.port;
+ }
+ else
+ {
+ vip->protocol = (u8)~0;
+ vip->port = 0;
+ }
vip->last_garbage_collection = (u32) vlib_time_now(vlib_get_main());
- vip->type = type;
- vip->dscp = dscp;
+ vip->type = args.type;
+
+ if (args.type == LB_VIP_TYPE_IP4_L3DSR) {
+ vip->encap_args.dscp = args.encap_args.dscp;
+ }
+ else if ((args.type == LB_VIP_TYPE_IP4_NAT4)
+ ||(args.type == LB_VIP_TYPE_IP6_NAT6)) {
+ vip->encap_args.srv_type = args.encap_args.srv_type;
+ vip->encap_args.target_port =
+ clib_host_to_net_u16(args.encap_args.target_port);
+ }
+
vip->flags = LB_VIP_FLAGS_USED;
vip->as_indexes = 0;
}
//Configure new flow table
- vip->new_flow_table_mask = new_length - 1;
+ vip->new_flow_table_mask = args.new_length - 1;
vip->new_flow_table = 0;
- //Create a new flow hash table full of the default entry
+ //Update flow hash table
lb_vip_update_new_flow_table(vip);
//Create adjacency to direct traffic
- lb_vip_add_adjacency(lbm, vip);
+ lb_vip_add_adjacency(lbm, vip, &vip_prefix_index);
+
+ if ( (lb_vip_is_nat4_port(vip) || lb_vip_is_nat6_port(vip))
+ && (args.encap_args.srv_type == LB_SRV_TYPE_NODEPORT) )
+ {
+ u32 key;
+ uword * entry;
+
+ //Create maping from nodeport to vip_index
+ key = clib_host_to_net_u16(args.port);
+ entry = hash_get_mem (lbm->vip_index_by_nodeport, &key);
+ if (entry) {
+ lb_put_writer_lock();
+ return VNET_API_ERROR_VALUE_EXIST;
+ }
+
+ hash_set_mem (lbm->vip_index_by_nodeport, &key, vip - lbm->vips);
+
+ /* receive packets destined to NodeIP:NodePort */
+ udp_register_dst_port (vm, args.port, lb4_nodeport_node.index, 1);
+ udp_register_dst_port (vm, args.port, lb6_nodeport_node.index, 0);
+ }
- //Return result
*vip_index = vip - lbm->vips;
+ //Create per-port vip filtering table
+ if (args.port != 0)
+ {
+ lb_vip_add_port_filter(lbm, vip, vip_prefix_index, *vip_index);
+ vip->vip_prefix_index = vip_prefix_index;
+ }
lb_put_writer_lock();
return 0;
{
lb_main_t *lbm = &lb_main;
lb_vip_t *vip;
+
+ /* Does not remove default vip, i.e. vip_index = 0 */
+ if (vip_index == 0)
+ return 0;
+
lb_get_writer_lock();
if (!(vip = lb_vip_get_by_index(vip_index))) {
lb_put_writer_lock();
ip46_address_t *ass = 0;
lb_as_t *as;
u32 *as_index;
+
pool_foreach(as_index, vip->as_indexes, {
as = &lbm->ass[*as_index];
vec_add1(ass, as->address);
});
if (vec_len(ass))
- lb_vip_del_ass_withlock(vip_index, ass, vec_len(ass));
+ lb_vip_del_ass_withlock(vip_index, ass, vec_len(ass), 0);
vec_free(ass);
}
//Delete adjacency
lb_vip_del_adjacency(lbm, vip);
+ //Delete per-port vip filtering entry
+ if (vip->port != 0)
+ {
+ lb_vip_del_port_filter(lbm, vip);
+ }
+
//Set the VIP as unused
vip->flags &= ~LB_VIP_FLAGS_USED;
lb_vip_t *vip = &lbm->vips[as->vip_index];
dpo_type_t dpo_type = 0;
- if(lb_vip_is_gre4(vip))
+ if (lb_vip_is_gre4(vip))
dpo_type = lbm->dpo_gre4_type;
else if (lb_vip_is_gre6(vip))
dpo_type = lbm->dpo_gre6_type;
+ else if (lb_vip_is_gre4_port(vip))
+ dpo_type = lbm->dpo_gre4_port_type;
+ else if (lb_vip_is_gre6_port(vip))
+ dpo_type = lbm->dpo_gre6_port_type;
else if (lb_vip_is_l3dsr(vip))
dpo_type = lbm->dpo_l3dsr_type;
+ else if (lb_vip_is_l3dsr_port(vip))
+ dpo_type = lbm->dpo_l3dsr_port_type;
+ else if(lb_vip_is_nat4_port(vip))
+ dpo_type = lbm->dpo_nat4_port_type;
+ else if (lb_vip_is_nat6_port(vip))
+ dpo_type = lbm->dpo_nat6_port_type;
dpo_stack(dpo_type,
- lb_vip_is_ip4(vip)?DPO_PROTO_IP4:DPO_PROTO_IP6,
- &as->dpo,
- fib_entry_contribute_ip_forwarding(
- as->next_hop_fib_entry_index));
+ lb_vip_is_ip4(vip->type)?DPO_PROTO_IP4:DPO_PROTO_IP6,
+ &as->dpo,
+ fib_entry_contribute_ip_forwarding(
+ as->next_hop_fib_entry_index));
}
static fib_node_back_walk_rc_t
lb_fib_node_back_walk_notify (fib_node_t *node,
- fib_node_back_walk_ctx_t *ctx)
+ fib_node_back_walk_ctx_t *ctx)
{
lb_as_stack(lb_as_from_fib_node(node));
return (FIB_NODE_BACK_WALK_CONTINUE);
}
+int lb_nat4_interface_add_del (u32 sw_if_index, int is_del)
+{
+ if (is_del)
+ {
+ vnet_feature_enable_disable ("ip4-unicast", "lb-nat4-in2out",
+ sw_if_index, 0, 0, 0);
+ }
+ else
+ {
+ vnet_feature_enable_disable ("ip4-unicast", "lb-nat4-in2out",
+ sw_if_index, 1, 0, 0);
+ }
+
+ return 0;
+}
+
+int lb_nat6_interface_add_del (u32 sw_if_index, int is_del)
+{
+ if (is_del)
+ {
+ vnet_feature_enable_disable ("ip6-unicast", "lb-nat6-in2out",
+ sw_if_index, 0, 0, 0);
+ }
+ else
+ {
+ vnet_feature_enable_disable ("ip6-unicast", "lb-nat6-in2out",
+ sw_if_index, 1, 0, 0);
+ }
+
+ return 0;
+}
+
clib_error_t *
lb_init (vlib_main_t * vm)
{
vlib_thread_main_t *tm = vlib_get_thread_main ();
lb_main_t *lbm = &lb_main;
+ lbm->vnet_main = vnet_get_main ();
+ lbm->vlib_main = vm;
+
+ lb_vip_t *default_vip;
lb_as_t *default_as;
fib_node_vft_t lb_fib_node_vft = {
.fnv_get = lb_fib_node_get_node,
.dv_format = format_lb_dpo,
};
+ //Allocate and init default VIP.
lbm->vips = 0;
+ pool_get(lbm->vips, default_vip);
+ default_vip->prefix.ip6.as_u64[0] = 0xffffffffffffffffL;
+ default_vip->prefix.ip6.as_u64[1] = 0xffffffffffffffffL;
+ default_vip->protocol = ~0;
+ default_vip->port = 0;
+ default_vip->flags = LB_VIP_FLAGS_USED;
+
lbm->per_cpu = 0;
vec_validate(lbm->per_cpu, tm->n_vlib_mains - 1);
lbm->writer_lock = clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES, CLIB_CACHE_LINE_BYTES);
lbm->ip6_src_address.as_u64[1] = 0xffffffffffffffffL;
lbm->dpo_gre4_type = dpo_register_new_type(&lb_vft, lb_dpo_gre4_nodes);
lbm->dpo_gre6_type = dpo_register_new_type(&lb_vft, lb_dpo_gre6_nodes);
- lbm->dpo_l3dsr_type = dpo_register_new_type(&lb_vft, lb_dpo_l3dsr_nodes);
+ lbm->dpo_gre4_port_type = dpo_register_new_type(&lb_vft,
+ lb_dpo_gre4_port_nodes);
+ lbm->dpo_gre6_port_type = dpo_register_new_type(&lb_vft,
+ lb_dpo_gre6_port_nodes);
+ lbm->dpo_l3dsr_type = dpo_register_new_type(&lb_vft,
+ lb_dpo_l3dsr_nodes);
+ lbm->dpo_l3dsr_port_type = dpo_register_new_type(&lb_vft,
+ lb_dpo_l3dsr_port_nodes);
+ lbm->dpo_nat4_port_type = dpo_register_new_type(&lb_vft,
+ lb_dpo_nat4_port_nodes);
+ lbm->dpo_nat6_port_type = dpo_register_new_type(&lb_vft,
+ lb_dpo_nat6_port_nodes);
lbm->fib_node_type = fib_node_register_new_type(&lb_fib_node_vft);
//Init AS reference counters
default_as->address.ip6.as_u64[0] = 0xffffffffffffffffL;
default_as->address.ip6.as_u64[1] = 0xffffffffffffffffL;
+ lbm->vip_index_by_nodeport
+ = hash_create_mem (0, sizeof(u16), sizeof (uword));
+
+ clib_bihash_init_8_8 (&lbm->vip_index_per_port,
+ "vip_index_per_port", LB_VIP_PER_PORT_BUCKETS,
+ LB_VIP_PER_PORT_MEMORY_SIZE);
+
+ clib_bihash_init_8_8 (&lbm->mapping_by_as4,
+ "mapping_by_as4", LB_MAPPING_BUCKETS,
+ LB_MAPPING_MEMORY_SIZE);
+
+ clib_bihash_init_24_8 (&lbm->mapping_by_as6,
+ "mapping_by_as6", LB_MAPPING_BUCKETS,
+ LB_MAPPING_MEMORY_SIZE);
+
#define _(a,b,c) lbm->vip_counters[c].name = b;
lb_foreach_vip_counter
#undef _
Code Review / vpp.git / blobdiff