diff options
Diffstat (limited to 'plugins/lb-plugin/lb/lb.c')
| -rw-r--r-- | plugins/lb-plugin/lb/lb.c | 746 |
1 files changed, 746 insertions, 0 deletions
diff --git a/plugins/lb-plugin/lb/lb.c b/plugins/lb-plugin/lb/lb.c new file mode 100644 index 00000000000..5eeeac5cfb7 --- /dev/null +++ b/plugins/lb-plugin/lb/lb.c @@ -0,0 +1,746 @@ +/* + * Copyright (c) 2016 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <lb/lb.h> +#include <vnet/plugin/plugin.h> +#include <vnet/api_errno.h> + +//GC runs at most once every so many seconds +#define LB_GARBAGE_RUN 60 + +//After so many seconds. It is assumed that inter-core race condition will not occur. +#define LB_CONCURRENCY_TIMEOUT 10 + +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 + +u32 lb_hash_time_now(vlib_main_t * vm) +{ + return (u32) (vlib_time_now(vm) + 10000); +} + +u8 *format_lb_main (u8 * s, va_list * args) +{ + vlib_thread_main_t *tm = vlib_get_thread_main(); + lb_main_t *lbm = &lb_main; + s = format(s, "lb_main"); + s = format(s, " ip4-src-address: %U \n", format_ip4_address, &lbm->ip4_src_address); + s = format(s, " ip6-src-address: %U \n", format_ip6_address, &lbm->ip6_src_address); + s = format(s, " #vips: %u\n", pool_elts(lbm->vips)); + s = format(s, " #ass: %u\n", pool_elts(lbm->ass) - 1); + + u32 cpu_index; + for(cpu_index = 0; cpu_index < tm->n_vlib_mains; cpu_index++ ) { + lb_hash_t *h = lbm->per_cpu[cpu_index].sticky_ht; + if (h) { + s = format(s, "core %d\n", cpu_index); + s = format(s, " timeout: %ds\n", h->timeout); + s = format(s, " usage: %d / %d\n", lb_hash_elts(h, lb_hash_time_now(vlib_get_main())), lb_hash_size(h)); + } + } + + return s; +} + +static char *lb_vip_type_strings[] = { + [LB_VIP_TYPE_IP6_GRE6] = "ip6-gre6", + [LB_VIP_TYPE_IP6_GRE4] = "ip6-gre4", + [LB_VIP_TYPE_IP4_GRE6] = "ip4-gre6", + [LB_VIP_TYPE_IP4_GRE4] = "ip4-gre4", +}; + +u8 *format_lb_vip_type (u8 * s, va_list * args) +{ + lb_vip_type_t vipt = va_arg (*args, lb_vip_type_t); + u32 i; + for (i=0; i<LB_VIP_N_TYPES; i++) + if (vipt == i) + return format(s, lb_vip_type_strings[i]); + return format(s, "_WRONG_TYPE_"); +} + +uword unformat_lb_vip_type (unformat_input_t * input, va_list * args) +{ + lb_vip_type_t *vipt = va_arg (*args, lb_vip_type_t *); + u32 i; + for (i=0; i<LB_VIP_N_TYPES; i++) + if (unformat(input, lb_vip_type_strings[i])) { + *vipt = i; + return 1; + } + return 0; +} + +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", + 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"); +} + +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, (as->flags & LB_AS_FLAGS_USED)?"used":"removed"); +} + +u8 *format_lb_vip_detailed (u8 * s, va_list * args) +{ + lb_main_t *lbm = &lb_main; + lb_vip_t *vip = va_arg (*args, lb_vip_t *); + uword indent = format_get_indent (s); + + s = format(s, "%U %U [%u] %U%s\n" + "%U new_size:%u\n", + format_white_space, indent, + format_lb_vip_type, vip->type, + vip - lbm->vips, format_ip46_prefix, &vip->prefix, vip->plen, IP46_TYPE_ANY, + (vip->flags & LB_VIP_FLAGS_USED)?"":" removed", + format_white_space, indent, + vip->new_flow_table_mask + 1); + + //Print counters + s = format(s, "%U counters:\n", + format_white_space, indent); + u32 i; + for (i=0; i<LB_N_VIP_COUNTERS; i++) + s = format(s, "%U %s: %d\n", + format_white_space, indent, + lbm->vip_counters[i].name, + vlib_get_simple_counter(&lbm->vip_counters[i], vip - lbm->vips)); + + + s = format(s, "%U #as:%u\n", + format_white_space, indent, + pool_elts(vip->as_indexes)); + + //Let's count the buckets for each AS + u32 *count = 0; + vec_validate(count, pool_len(lbm->ass)); //Possibly big alloc for not much... + lb_new_flow_entry_t *nfe; + vec_foreach(nfe, vip->new_flow_table) + count[nfe->as_index]++; + + lb_as_t *as; + u32 *as_index; + pool_foreach(as_index, vip->as_indexes, { + as = &lbm->ass[*as_index]; + s = format(s, "%U %U %d buckets %d flows %s\n", format_white_space, indent, + format_ip46_address, &as->address, IP46_TYPE_ANY, + count[as - lbm->ass], + vlib_refcount_get(&lbm->as_refcount, as - lbm->ass), + (as->flags & LB_AS_FLAGS_USED)?"used":" removed"); + }); + + 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; +} + + +typedef struct { + u32 as_index; + u32 last; + u32 skip; +} lb_pseudorand_t; + +static int lb_pseudorand_compare(void *a, void *b) +{ + lb_as_t *asa, *asb; + lb_main_t *lbm = &lb_main; + asa = &lbm->ass[((lb_pseudorand_t *)a)->as_index]; + asb = &lbm->ass[((lb_pseudorand_t *)b)->as_index]; + return memcmp(&asa->address, &asb->address, sizeof(asb->address)); +} + +static void lb_vip_garbage_collection(lb_vip_t *vip) +{ + lb_main_t *lbm = &lb_main; + ASSERT (lbm->writer_lock[0]); + + u32 now = (u32) vlib_time_now(vlib_get_main()); + if (!clib_u32_loop_gt(now, vip->last_garbage_collection + LB_GARBAGE_RUN)) + return; + + vip->last_garbage_collection = now; + lb_as_t *as; + u32 *as_index; + 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 + pool_put(vip->as_indexes, as_index); + pool_put(lbm->ass, as); + } + }); +} + +void lb_garbage_collection() +{ + lb_main_t *lbm = &lb_main; + lb_get_writer_lock(); + lb_vip_t *vip; + u32 *to_be_removed_vips = 0, *i; + pool_foreach(vip, lbm->vips, { + lb_vip_garbage_collection(vip); + + if (!(vip->flags & LB_VIP_FLAGS_USED) && + (pool_elts(vip->as_indexes) == 0)) { + vec_add1(to_be_removed_vips, vip - lbm->vips); + } + }); + + vec_foreach(i, to_be_removed_vips) { + vip = &lbm->vips[*i]; + pool_put(lbm->vips, vip); + pool_free(vip->as_indexes); + } + + vec_free(to_be_removed_vips); + lb_put_writer_lock(); +} + +static void lb_vip_update_new_flow_table(lb_vip_t *vip) +{ + lb_main_t *lbm = &lb_main; + lb_new_flow_entry_t *old_table; + u32 i, *as_index; + 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 + + //Check if some AS is configured or not + i = 0; + pool_foreach(as_index, vip->as_indexes, { + as = &lbm->ass[*as_index]; + if (as->flags & LB_AS_FLAGS_USED) { //Not used anymore + i = 1; + goto out; //Not sure 'break' works in this macro-loop + } + }); + +out: + if (i == 0) { + //Only the default. i.e. no AS + vec_validate(new_flow_table, vip->new_flow_table_mask); + for (i=0; i<vec_len(new_flow_table); i++) + new_flow_table[i].as_index = 0; + + goto finished; + } + + //First, let's sort the ASs + sort_arr = 0; + vec_alloc(sort_arr, pool_elts(vip->as_indexes)); + + i = 0; + pool_foreach(as_index, vip->as_indexes, { + as = &lbm->ass[*as_index]; + if (!(as->flags & LB_AS_FLAGS_USED)) //Not used anymore + continue; + + sort_arr[i].as_index = as - lbm->ass; + i++; + }); + _vec_len(sort_arr) = i; + + vec_sort_with_function(sort_arr, lb_pseudorand_compare); + + //Now let's pseudo-randomly generate permutations + vec_foreach(pr, sort_arr) { + lb_as_t *as = &lbm->ass[pr->as_index]; + + u64 seed = clib_xxhash(as->address.as_u64[0] ^ + as->address.as_u64[1]); + /* We have 2^n buckets. + * skip must be prime with 2^n. + * So skip must be odd. + * MagLev actually state that M should be prime, + * but this has a big computation cost (% operation). + * Using 2^n is more better (& operation). + */ + pr->skip = ((seed & 0xffffffff) | 1) & vip->new_flow_table_mask; + pr->last = (seed >> 32) & vip->new_flow_table_mask; + } + + //Let's create a new flow table + vec_validate(new_flow_table, vip->new_flow_table_mask); + for (i=0; i<vec_len(new_flow_table); i++) + new_flow_table[i].as_index = ~0; + + u32 done = 0; + while (1) { + vec_foreach(pr, sort_arr) { + while (1) { + u32 last = pr->last; + pr->last = (pr->last + pr->skip) & vip->new_flow_table_mask; + if (new_flow_table[last].as_index == ~0) { + new_flow_table[last].as_index = pr->as_index; + break; + } + } + done++; + if (done == vec_len(new_flow_table)) + goto finished; + } + } + + 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++; + + old_table = vip->new_flow_table; + vip->new_flow_table = new_flow_table; + vec_free(old_table); +} + +int lb_conf(ip4_address_t *ip4_address, ip6_address_t *ip6_address, + u32 per_cpu_sticky_buckets, u32 flow_timeout) +{ + lb_main_t *lbm = &lb_main; + + if (!is_pow2(per_cpu_sticky_buckets)) + return VNET_API_ERROR_INVALID_MEMORY_SIZE; + + lb_get_writer_lock(); //Not exactly necessary but just a reminder that it exists for my future self + lbm->ip4_src_address = *ip4_address; + lbm->ip6_src_address = *ip6_address; + lbm->per_cpu_sticky_buckets = per_cpu_sticky_buckets; + lbm->flow_timeout = flow_timeout; + lb_put_writer_lock(); + return 0; +} + +static +int lb_vip_find_index_with_lock(ip46_address_t *prefix, u8 plen, u32 *vip_index) +{ + lb_main_t *lbm = &lb_main; + lb_vip_t *vip; + ASSERT (lbm->writer_lock[0]); //This must be called with the lock owned + ip46_prefix_normalize(prefix, plen); + pool_foreach(vip, lbm->vips, { + 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; + } + }); + return VNET_API_ERROR_NO_SUCH_ENTRY; +} + +int lb_vip_find_index(ip46_address_t *prefix, u8 plen, u32 *vip_index) +{ + int ret; + lb_get_writer_lock(); + ret = lb_vip_find_index_with_lock(prefix, plen, vip_index); + lb_put_writer_lock(); + return ret; +} + +static int lb_as_find_index_vip(lb_vip_t *vip, ip46_address_t *address, u32 *as_index) +{ + lb_main_t *lbm = &lb_main; + ASSERT (lbm->writer_lock[0]); //This must be called with the lock owned + lb_as_t *as; + u32 *asi; + pool_foreach(asi, vip->as_indexes, { + 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_index = as - lbm->ass; + return 0; + } + }); + return -1; +} + +int lb_vip_add_ass(u32 vip_index, ip46_address_t *addresses, u32 n) +{ + lb_main_t *lbm = &lb_main; + lb_get_writer_lock(); + lb_vip_t *vip; + if (!(vip = lb_vip_get_by_index(vip_index))) { + lb_put_writer_lock(); + return VNET_API_ERROR_NO_SUCH_ENTRY; + } + + ip46_type_t type = lb_vip_is_gre4(vip)?IP46_TYPE_IP4:IP46_TYPE_IP6; + u32 *to_be_added = 0; + u32 *to_be_updated = 0; + u32 i; + u32 *ip; + + //Sanity check + while (n--) { + + if (!lb_as_find_index_vip(vip, &addresses[n], &i)) { + if (lbm->ass[i].flags & LB_AS_FLAGS_USED) { + vec_free(to_be_added); + vec_free(to_be_updated); + lb_put_writer_lock(); + return VNET_API_ERROR_VALUE_EXIST; + } + vec_add1(to_be_updated, i); + goto next; + } + + if (ip46_address_type(&addresses[n]) != type) { + vec_free(to_be_added); + vec_free(to_be_updated); + lb_put_writer_lock(); + return VNET_API_ERROR_INVALID_ADDRESS_FAMILY; + } + + if (n) { + u32 n2 = n; + while(n2--) //Check for duplicates + if (addresses[n2].as_u64[0] == addresses[n].as_u64[0] && + addresses[n2].as_u64[1] == addresses[n].as_u64[1]) + goto next; + } + + vec_add1(to_be_added, n); + +next: + continue; + } + + //Update reused ASs + vec_foreach(ip, to_be_updated) { + lbm->ass[*ip].flags = LB_AS_FLAGS_USED; + } + vec_free(to_be_updated); + + //Create those who have to be created + vec_foreach(ip, to_be_added) { + lb_as_t *as; + u32 *as_index; + pool_get(lbm->ass, as); + as->address = addresses[*ip]; + as->flags = LB_AS_FLAGS_USED; + as->vip_index = vip_index; + pool_get(vip->as_indexes, as_index); + *as_index = as - lbm->ass; + } + vec_free(to_be_added); + + //Recompute flows + lb_vip_update_new_flow_table(vip); + + //Garbage collection maybe + lb_vip_garbage_collection(vip); + + lb_put_writer_lock(); + return 0; +} + +int lb_vip_del_ass_withlock(u32 vip_index, ip46_address_t *addresses, u32 n) +{ + lb_main_t *lbm = &lb_main; + u32 now = (u32) vlib_time_now(vlib_get_main()); + u32 *ip = 0; + + lb_vip_t *vip; + if (!(vip = lb_vip_get_by_index(vip_index))) { + return VNET_API_ERROR_NO_SUCH_ENTRY; + } + + u32 *indexes = NULL; + while (n--) { + u32 i; + if (lb_as_find_index_vip(vip, &addresses[n], &i)) { + vec_free(indexes); + return VNET_API_ERROR_NO_SUCH_ENTRY; + } + + if (n) { //Check for duplicates + u32 n2 = n - 1; + while(n2--) { + if (addresses[n2].as_u64[0] == addresses[n].as_u64[0] && + addresses[n2].as_u64[1] == addresses[n].as_u64[1]) + goto next; + } + } + + vec_add1(indexes, i); +next: + continue; + } + + //Garbage collection maybe + lb_vip_garbage_collection(vip); + + if (indexes != NULL) { + vec_foreach(ip, indexes) { + lbm->ass[*ip].flags &= ~LB_AS_FLAGS_USED; + lbm->ass[*ip].last_used = now; + } + + //Recompute flows + lb_vip_update_new_flow_table(vip); + } + + vec_free(indexes); + return 0; +} + +int lb_vip_del_ass(u32 vip_index, ip46_address_t *addresses, u32 n) +{ + lb_get_writer_lock(); + int ret = lb_vip_del_ass_withlock(vip_index, addresses, n); + lb_put_writer_lock(); + return ret; +} + + +/** + * Add the VIP adjacency to the ip4 or ip6 fib + */ +static void lb_vip_add_adjacency(lb_main_t *lbm, lb_vip_t *vip) +{ + ip_adjacency_t adj; + //Adjacency + memset (&adj, 0, sizeof (adj)); + adj.explicit_fib_index = ~0; + lb_adj_data_t *ad = (lb_adj_data_t *) &adj.opaque; + ad->vip_index = vip - lbm->vips; + + ASSERT (lbm->writer_lock[0]); //This must be called with the lock owned + u32 lookup_next_index = lbm->ip_lookup_next_index[vip->type]; + + if (lb_vip_is_ip4(vip)) { + adj.lookup_next_index = lookup_next_index; + ip4_add_del_route_args_t route_args = {}; + ip4_main_t *im4 = &ip4_main; + route_args.table_index_or_table_id = 0; + route_args.flags = IP4_ROUTE_FLAG_ADD; + route_args.dst_address = vip->prefix.ip4; + route_args.dst_address_length = vip->plen - 96; + route_args.adj_index = ~0; + route_args.add_adj = &adj; + route_args.n_add_adj = 1; + ip4_add_del_route (im4, &route_args); + } else { + adj.lookup_next_index = lookup_next_index; + ip6_add_del_route_args_t route_args = {}; + ip6_main_t *im6 = &ip6_main; + route_args.table_index_or_table_id = 0; + route_args.flags = IP6_ROUTE_FLAG_ADD; + route_args.dst_address = vip->prefix.ip6; + route_args.dst_address_length = vip->plen; + route_args.adj_index = ~0; + route_args.add_adj = &adj; + route_args.n_add_adj = 1; + ip6_add_del_route (im6, &route_args); + } +} + +/** + * Deletes the adjacency associated with the VIP + */ +static void lb_vip_del_adjacency(lb_main_t *lbm, lb_vip_t *vip) +{ + ASSERT (lbm->writer_lock[0]); //This must be called with the lock owned + if (lb_vip_is_ip4(vip)) { + ip4_main_t *im4 = &ip4_main; + ip4_add_del_route_args_t route_args = {}; + route_args.table_index_or_table_id = 0; + route_args.flags = IP4_ROUTE_FLAG_DEL; + route_args.dst_address = vip->prefix.ip4; + route_args.dst_address_length = vip->plen - 96; + route_args.adj_index = ~0; + route_args.add_adj = NULL; + route_args.n_add_adj = 0; + ip4_add_del_route (im4, &route_args); + } else { + ip6_main_t *im6 = &ip6_main; + ip6_add_del_route_args_t route_args = {}; + route_args.table_index_or_table_id = 0; + route_args.flags = IP6_ROUTE_FLAG_DEL; + route_args.dst_address = vip->prefix.ip6; + route_args.dst_address_length = vip->plen; + route_args.adj_index = ~0; + route_args.add_adj = NULL; + route_args.n_add_adj = 0; + ip6_add_del_route (im6, &route_args); + } +} + +int lb_vip_add(ip46_address_t *prefix, u8 plen, lb_vip_type_t type, u32 new_length, u32 *vip_index) +{ + lb_main_t *lbm = &lb_main; + lb_vip_t *vip; + lb_get_writer_lock(); + ip46_prefix_normalize(prefix, plen); + + if (!lb_vip_find_index_with_lock(prefix, plen, vip_index)) { + lb_put_writer_lock(); + return VNET_API_ERROR_VALUE_EXIST; + } + + if (!is_pow2(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)) + return VNET_API_ERROR_INVALID_ADDRESS_FAMILY; + + + //Allocate + pool_get(lbm->vips, vip); + + //Init + vip->prefix = *prefix; + vip->plen = plen; + vip->last_garbage_collection = (u32) vlib_time_now(vlib_get_main()); + vip->type = type; + vip->flags = LB_VIP_FLAGS_USED; + vip->as_indexes = 0; + + //Validate counters + u32 i; + for (i = 0; i < LB_N_VIP_COUNTERS; i++) { + vlib_validate_simple_counter(&lbm->vip_counters[i], vip - lbm->vips); + vlib_zero_simple_counter(&lbm->vip_counters[i], vip - lbm->vips); + } + + //Configure new flow table + vip->new_flow_table_mask = new_length - 1; + vip->new_flow_table = 0; + + //Create a new flow hash table full of the default entry + lb_vip_update_new_flow_table(vip); + + //Create adjacency to direct traffic + lb_vip_add_adjacency(lbm, vip); + + //Return result + *vip_index = vip - lbm->vips; + + lb_put_writer_lock(); + return 0; +} + +int lb_vip_del(u32 vip_index) +{ + lb_main_t *lbm = &lb_main; + lb_vip_t *vip; + lb_get_writer_lock(); + if (!(vip = lb_vip_get_by_index(vip_index))) { + lb_put_writer_lock(); + return VNET_API_ERROR_NO_SUCH_ENTRY; + } + + //FIXME: This operation is actually not working + //We will need to remove state before performing this. + + { + //Remove all ASs + 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)); + vec_free(ass); + } + + //Delete adjacency + lb_vip_del_adjacency(lbm, vip); + + //Set the VIP as unused + vip->flags &= ~LB_VIP_FLAGS_USED; + + lb_put_writer_lock(); + return 0; +} + +clib_error_t * +vlib_plugin_register (vlib_main_t * vm, + vnet_plugin_handoff_t * h, + int from_early_init) +{ + clib_error_t *error = 0; + return error; +} + +clib_error_t * +lb_init (vlib_main_t * vm) +{ + vlib_thread_main_t *tm = vlib_get_thread_main (); + lb_main_t *lbm = &lb_main; + lb_as_t *default_as; + lbm->vips = 0; + 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->writer_lock[0] = 0; + lbm->per_cpu_sticky_buckets = LB_DEFAULT_PER_CPU_STICKY_BUCKETS; + lbm->flow_timeout = LB_DEFAULT_FLOW_TIMEOUT; + lbm->ip4_src_address.as_u32 = 0xffffffff; + lbm->ip6_src_address.as_u64[0] = 0xffffffffffffffffL; + lbm->ip6_src_address.as_u64[1] = 0xffffffffffffffffL; + + //Init AS reference counters + vlib_refcount_init(&lbm->as_refcount); + + //Allocate and init default AS. + lbm->ass = 0; + pool_get(lbm->ass, default_as); + default_as->flags = 0; + default_as->vip_index = ~0; + default_as->address.ip6.as_u64[0] = 0xffffffffffffffffL; + default_as->address.ip6.as_u64[1] = 0xffffffffffffffffL; + +#define _(a,b,c) lbm->vip_counters[c].name = b; + lb_foreach_vip_counter +#undef _ + return NULL; +} + +VLIB_INIT_FUNCTION (lb_init); |