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-rw-r--r--src/plugins/kubeproxy/kp.c978
1 files changed, 0 insertions, 978 deletions
diff --git a/src/plugins/kubeproxy/kp.c b/src/plugins/kubeproxy/kp.c
deleted file mode 100644
index b31b3171d90..00000000000
--- a/src/plugins/kubeproxy/kp.c
+++ /dev/null
@@ -1,978 +0,0 @@
-/*
- * Copyright (c) 2017 Intel 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 anated to in writing, software
- * distributed under the License is distributed on an "POD IS" BPODIS,
- * 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 <kubeproxy/kp.h>
-#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 KP_GARBAGE_RUN 60
-
-//After so many seconds. It is assumed that inter-core race condition will not occur.
-#define KP_CONCURRENCY_TIMEOUT 10
-
-kp_main_t kp_main;
-
-#define kp_get_writer_lock() do {} while(__sync_lock_test_and_set (kp_main.writer_lock, 1))
-#define kp_put_writer_lock() kp_main.writer_lock[0] = 0
-
-static void kp_pod_stack (kp_pod_t *pod);
-
-void ip46_prefix_normalize(ip46_address_t *prefix, u8 plen)
-{
- if (plen == 0) {
- prefix->as_u64[0] = 0;
- prefix->as_u64[1] = 0;
- } else if (plen <= 64) {
- prefix->as_u64[0] &= clib_host_to_net_u64(0xffffffffffffffffL << (64 - plen));
- prefix->as_u64[1] = 0;
- } else {
- prefix->as_u64[1] &= clib_host_to_net_u64(0xffffffffffffffffL << (128 - plen));
- }
-
-}
-
-uword unformat_ip46_prefix (unformat_input_t * input, va_list * args)
-{
- ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
- u8 *len = va_arg (*args, u8 *);
- ip46_type_t type = va_arg (*args, ip46_type_t);
-
- u32 l;
- if ((type != IP46_TYPE_IP6) && unformat(input, "%U/%u", unformat_ip4_address, &ip46->ip4, &l)) {
- if (l > 32)
- return 0;
- *len = l + 96;
- ip46->pad[0] = ip46->pad[1] = ip46->pad[2] = 0;
- } else if ((type != IP46_TYPE_IP4) && unformat(input, "%U/%u", unformat_ip6_address, &ip46->ip6, &l)) {
- if (l > 128)
- return 0;
- *len = l;
- } else {
- return 0;
- }
- return 1;
-}
-
-u8 *format_ip46_prefix (u8 * s, va_list * args)
-{
- ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
- u32 len = va_arg (*args, u32); //va_arg cannot use u8 or u16
- ip46_type_t type = va_arg (*args, ip46_type_t);
-
- int is_ip4 = 0;
- if (type == IP46_TYPE_IP4)
- is_ip4 = 1;
- else if (type == IP46_TYPE_IP6)
- is_ip4 = 0;
- else
- is_ip4 = (len >= 96) && ip46_address_is_ip4(ip46);
-
- return is_ip4 ?
- format(s, "%U/%d", format_ip4_address, &ip46->ip4, len - 96):
- format(s, "%U/%d", format_ip6_address, &ip46->ip6, len);
-}
-
-const static char * const kp_dpo_nat4_ip4[] = { "kp4-nat4" , NULL };
-const static char * const kp_dpo_nat4_ip6[] = { "kp6-nat4" , NULL };
-const static char* const * const kp_dpo_nat4_nodes[DPO_PROTO_NUM] =
- {
- [DPO_PROTO_IP4] = kp_dpo_nat4_ip4,
- [DPO_PROTO_IP6] = kp_dpo_nat4_ip6,
- };
-
-const static char * const kp_dpo_nat6_ip4[] = { "kp4-nat6" , NULL };
-const static char * const kp_dpo_nat6_ip6[] = { "kp6-nat6" , NULL };
-const static char* const * const kp_dpo_nat6_nodes[DPO_PROTO_NUM] =
- {
- [DPO_PROTO_IP4] = kp_dpo_nat6_ip4,
- [DPO_PROTO_IP6] = kp_dpo_nat6_ip6,
- };
-
-u32 kp_hash_time_now(vlib_main_t * vm)
-{
- return (u32) (vlib_time_now(vm) + 10000);
-}
-
-u8 *format_kp_main (u8 * s, va_list * args)
-{
- vlib_thread_main_t *tm = vlib_get_thread_main();
- kp_main_t *kpm = &kp_main;
- s = format(s, "kp_main");
- s = format(s, " #vips: %u\n", pool_elts(kpm->vips));
- s = format(s, " #pods: %u\n", pool_elts(kpm->pods) - 1);
-
- u32 thread_index;
- for(thread_index = 0; thread_index < tm->n_vlib_mains; thread_index++ ) {
- kp_hash_t *h = kpm->per_cpu[thread_index].sticky_ht;
- if (h) {
- s = format(s, "core %d\n", thread_index);
- s = format(s, " timeout: %ds\n", h->timeout);
- s = format(s, " usage: %d / %d\n", kp_hash_elts(h, kp_hash_time_now(vlib_get_main())), kp_hash_size(h));
- }
- }
-
- return s;
-}
-
-static char *kp_vip_type_strings[] = {
- [KP_VIP_TYPE_IP4_NAT44] = "ip4-nat44",
- [KP_VIP_TYPE_IP4_NAT46] = "ip4-nat46",
- [KP_VIP_TYPE_IP6_NAT64] = "ip6-nat64",
- [KP_VIP_TYPE_IP6_NAT66] = "ip6-nat66",
-};
-
-u8 *format_kp_vip_type (u8 * s, va_list * args)
-{
- kp_vip_type_t vipt = va_arg (*args, kp_vip_type_t);
- u32 i;
- for (i=0; i<KP_VIP_N_TYPES; i++)
- if (vipt == i)
- return format(s, kp_vip_type_strings[i]);
- return format(s, "_WRONG_TYPE_");
-}
-
-uword unformat_kp_vip_type (unformat_input_t * input, va_list * args)
-{
- kp_vip_type_t *vipt = va_arg (*args, kp_vip_type_t *);
- u32 i;
- for (i=0; i<KP_VIP_N_TYPES; i++)
- if (unformat(input, kp_vip_type_strings[i])) {
- *vipt = i;
- return 1;
- }
- return 0;
-}
-
-u8 *format_kp_vip (u8 * s, va_list * args)
-{
- kp_vip_t *vip = va_arg (*args, kp_vip_t *);
- return format(s, "%U %U port:%u target_port:%u node_port:%u "
- "new_size:%u #pod:%u%s",
- format_kp_vip_type, vip->type,
- format_ip46_prefix, &vip->prefix, vip->plen, IP46_TYPE_ANY,
- ntohs(vip->port), ntohs(vip->target_port),
- ntohs(vip->node_port),
- vip->new_flow_table_mask + 1,
- pool_elts(vip->pod_indexes),
- (vip->flags & KP_VIP_FLAGS_USED)?"":" removed");
-}
-
-u8 *format_kp_pod (u8 * s, va_list * args)
-{
- kp_pod_t *pod = va_arg (*args, kp_pod_t *);
- return format(s, "%U %s", format_ip46_address,
- &pod->address, IP46_TYPE_ANY,
- (pod->flags & KP_POD_FLAGS_USED)?"used":"removed");
-}
-
-u8 *format_kp_vip_detailed (u8 * s, va_list * args)
-{
- kp_main_t *kpm = &kp_main;
- kp_vip_t *vip = va_arg (*args, kp_vip_t *);
- uword indent = format_get_indent (s);
-
- s = format(s, "%U %U [%u] %U port:%u target_port:%u node_port:%u%s\n"
- "%U new_size:%u\n",
- format_white_space, indent,
- format_kp_vip_type, vip->type,
- vip - kpm->vips, format_ip46_prefix, &vip->prefix, vip->plen, IP46_TYPE_ANY,
- ntohs(vip->port), ntohs(vip->target_port),
- ntohs(vip->node_port),
- (vip->flags & KP_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<KP_N_VIP_COUNTERS; i++)
- s = format(s, "%U %s: %d\n",
- format_white_space, indent,
- kpm->vip_counters[i].name,
- vlib_get_simple_counter(&kpm->vip_counters[i], vip - kpm->vips));
-
-
- s = format(s, "%U #pod:%u\n",
- format_white_space, indent,
- pool_elts(vip->pod_indexes));
-
- //Let's count the buckets for each POD
- u32 *count = 0;
- vec_validate(count, pool_len(kpm->pods)); //Possibly big alloc for not much...
- kp_new_flow_entry_t *nfe;
- vec_foreach(nfe, vip->new_flow_table)
- count[nfe->pod_index]++;
-
- kp_pod_t *pod;
- u32 *pod_index;
- pool_foreach(pod_index, vip->pod_indexes, {
- pod = &kpm->pods[*pod_index];
- s = format(s, "%U %U %d buckets %d flows dpo:%u %s\n",
- format_white_space, indent,
- format_ip46_address, &pod->address, IP46_TYPE_ANY,
- count[pod - kpm->pods],
- vlib_refcount_get(&kpm->pod_refcount, pod - kpm->pods),
- pod->dpo.dpoi_index,
- (pod->flags & KP_POD_FLAGS_USED)?"used":" removed");
- });
-
- vec_free(count);
-
- /*
- s = format(s, "%U new flows table:\n", format_white_space, indent);
- kp_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->pod_index);
- }
- */
- return s;
-}
-
-typedef struct {
- u32 pod_index;
- u32 last;
- u32 skip;
-} kp_pseudorand_t;
-
-static int kp_pseudorand_compare(void *a, void *b)
-{
- kp_pod_t *poda, *podb;
- kp_main_t *kpm = &kp_main;
- poda = &kpm->pods[((kp_pseudorand_t *)a)->pod_index];
- podb = &kpm->pods[((kp_pseudorand_t *)b)->pod_index];
- return memcmp(&poda->address, &podb->address, sizeof(podb->address));
-}
-
-static void kp_vip_garbage_collection(kp_vip_t *vip)
-{
- kp_main_t *kpm = &kp_main;
- ASSERT (kpm->writer_lock[0]);
-
- u32 now = (u32) vlib_time_now(vlib_get_main());
- if (!clib_u32_loop_gt(now, vip->last_garbage_collection + KP_GARBAGE_RUN))
- return;
-
- vip->last_garbage_collection = now;
- kp_pod_t *pod;
- u32 *pod_index;
- pool_foreach(pod_index, vip->pod_indexes, {
- pod = &kpm->pods[*pod_index];
- if (!(pod->flags & KP_POD_FLAGS_USED) && //Not used
- clib_u32_loop_gt(now, pod->last_used + KP_CONCURRENCY_TIMEOUT) && //Not recently used
- (vlib_refcount_get(&kpm->pod_refcount, pod - kpm->pods) == 0))
- { //Not referenced
- fib_entry_child_remove(pod->next_hop_fib_entry_index,
- pod->next_hop_child_index);
- fib_table_entry_delete_index(pod->next_hop_fib_entry_index,
- FIB_SOURCE_RR);
- pod->next_hop_fib_entry_index = FIB_NODE_INDEX_INVALID;
-
- pool_put(vip->pod_indexes, pod_index);
- pool_put(kpm->pods, pod);
- }
- });
-}
-
-void kp_garbage_collection()
-{
- kp_main_t *kpm = &kp_main;
- kp_get_writer_lock();
- kp_vip_t *vip;
- u32 *to_be_removed_vips = 0, *i;
- pool_foreach(vip, kpm->vips, {
- kp_vip_garbage_collection(vip);
-
- if (!(vip->flags & KP_VIP_FLAGS_USED) &&
- (pool_elts(vip->pod_indexes) == 0)) {
- vec_add1(to_be_removed_vips, vip - kpm->vips);
- }
- });
-
- vec_foreach(i, to_be_removed_vips) {
- vip = &kpm->vips[*i];
- pool_put(kpm->vips, vip);
- pool_free(vip->pod_indexes);
- }
-
- vec_free(to_be_removed_vips);
- kp_put_writer_lock();
-}
-
-static void kp_vip_update_new_flow_table(kp_vip_t *vip)
-{
- kp_main_t *kpm = &kp_main;
- kp_new_flow_entry_t *old_table;
- u32 i, *pod_index;
- kp_new_flow_entry_t *new_flow_table = 0;
- kp_pod_t *pod;
- kp_pseudorand_t *pr, *sort_arr = 0;
- u32 count;
-
- ASSERT (kpm->writer_lock[0]); //We must have the lock
-
- //Check if some POD is configured or not
- i = 0;
- pool_foreach(pod_index, vip->pod_indexes, {
- pod = &kpm->pods[*pod_index];
- if (pod->flags & KP_POD_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 POD
- vec_validate(new_flow_table, vip->new_flow_table_mask);
- for (i=0; i<vec_len(new_flow_table); i++)
- new_flow_table[i].pod_index = 0;
-
- goto finished;
- }
-
- //First, let's sort the PODs
- sort_arr = 0;
- vec_alloc(sort_arr, pool_elts(vip->pod_indexes));
-
- i = 0;
- pool_foreach(pod_index, vip->pod_indexes, {
- pod = &kpm->pods[*pod_index];
- if (!(pod->flags & KP_POD_FLAGS_USED)) //Not used anymore
- continue;
-
- sort_arr[i].pod_index = pod - kpm->pods;
- i++;
- });
- _vec_len(sort_arr) = i;
-
- vec_sort_with_function(sort_arr, kp_pseudorand_compare);
-
- //Now let's pseudo-randomly generate permutations
- vec_foreach(pr, sort_arr) {
- kp_pod_t *pod = &kpm->pods[pr->pod_index];
-
- u64 seed = clib_xxhash(pod->address.as_u64[0] ^
- pod->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].pod_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].pod_index == ~0) {
- new_flow_table[last].pod_index = pr->pod_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].pod_index != vip->new_flow_table[i].pod_index)
- count++;
-
- old_table = vip->new_flow_table;
- vip->new_flow_table = new_flow_table;
- vec_free(old_table);
-}
-
-int kp_conf(u32 per_cpu_sticky_buckets, u32 flow_timeout)
-{
- kp_main_t *kpm = &kp_main;
-
- if (!is_pow2(per_cpu_sticky_buckets))
- return VNET_API_ERROR_INVALID_MEMORY_SIZE;
-
- kp_get_writer_lock(); //Not exactly necessary but just a reminder that it exists for my future self
- kpm->per_cpu_sticky_buckets = per_cpu_sticky_buckets;
- kpm->flow_timeout = flow_timeout;
- kp_put_writer_lock();
- return 0;
-}
-
-static
-int kp_vip_find_index_with_lock(ip46_address_t *prefix, u8 plen, u32 *vip_index)
-{
- kp_main_t *kpm = &kp_main;
- kp_vip_t *vip;
- ASSERT (kpm->writer_lock[0]); //This must be called with the lock owned
- ip46_prefix_normalize(prefix, plen);
- pool_foreach(vip, kpm->vips, {
- if ((vip->flags & KP_POD_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 - kpm->vips;
- return 0;
- }
- });
- return VNET_API_ERROR_NO_SUCH_ENTRY;
-}
-
-int kp_vip_find_index(ip46_address_t *prefix, u8 plen, u32 *vip_index)
-{
- int ret;
- kp_get_writer_lock();
- ret = kp_vip_find_index_with_lock(prefix, plen, vip_index);
- kp_put_writer_lock();
- return ret;
-}
-
-static int kp_pod_find_index_vip(kp_vip_t *vip, ip46_address_t *address, u32 *pod_index)
-{
- kp_main_t *kpm = &kp_main;
- ASSERT (kpm->writer_lock[0]); //This must be called with the lock owned
- kp_pod_t *pod;
- u32 *podi;
- pool_foreach(podi, vip->pod_indexes, {
- pod = &kpm->pods[*podi];
- if (pod->vip_index == (vip - kpm->vips) &&
- pod->address.as_u64[0] == address->as_u64[0] &&
- pod->address.as_u64[1] == address->as_u64[1]) {
- *pod_index = pod - kpm->pods;
- return 0;
- }
- });
- return -1;
-}
-
-int kp_vip_add_pods(u32 vip_index, ip46_address_t *addresses, u32 n)
-{
- kp_main_t *kpm = &kp_main;
- kp_get_writer_lock();
- kp_vip_t *vip;
- if (!(vip = kp_vip_get_by_index(vip_index))) {
- kp_put_writer_lock();
- return VNET_API_ERROR_NO_SUCH_ENTRY;
- }
-
- ip46_type_t type = kp_vip_is_nat4(vip)?IP46_TYPE_IP4:IP46_TYPE_IP6;
- u32 *to_be_added = 0;
- u32 *to_be_updated = 0;
- u32 i;
- u32 *ip;
- kp_snat_mapping_t *m;
- kp_snat4_key_t m_key4;
- clib_bihash_kv_8_8_t kv;
-
- //Sanity check
- while (n--) {
-
- if (!kp_pod_find_index_vip(vip, &addresses[n], &i)) {
- if (kpm->pods[i].flags & KP_POD_FLAGS_USED) {
- vec_free(to_be_added);
- vec_free(to_be_updated);
- kp_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);
- kp_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 PODs
- vec_foreach(ip, to_be_updated) {
- kpm->pods[*ip].flags = KP_POD_FLAGS_USED;
- }
- vec_free(to_be_updated);
-
- //Create those who have to be created
- vec_foreach(ip, to_be_added) {
- kp_pod_t *pod;
- u32 *pod_index;
- pool_get(kpm->pods, pod);
- pod->address = addresses[*ip];
- pod->flags = KP_POD_FLAGS_USED;
- pod->vip_index = vip_index;
- pool_get(vip->pod_indexes, pod_index);
- *pod_index = pod - kpm->pods;
-
- /*
- * become a child of the FIB entry
- * so we are informed when its forwarding changes
- */
- fib_prefix_t nh = {};
- if (kp_vip_is_nat4(vip)) {
- nh.fp_addr.ip4 = pod->address.ip4;
- nh.fp_len = 32;
- nh.fp_proto = FIB_PROTOCOL_IP4;
- } else {
- nh.fp_addr.ip6 = pod->address.ip6;
- nh.fp_len = 128;
- nh.fp_proto = FIB_PROTOCOL_IP6;
- }
-
- pod->next_hop_fib_entry_index =
- fib_table_entry_special_add(0,
- &nh,
- FIB_SOURCE_RR,
- FIB_ENTRY_FLAG_NONE);
- pod->next_hop_child_index =
- fib_entry_child_add(pod->next_hop_fib_entry_index,
- kpm->fib_node_type,
- pod - kpm->pods);
-
- kp_pod_stack(pod);
-
- /* Add SNAT static mapping */
- pool_get (kpm->snat_mappings, m);
- memset (m, 0, sizeof (*m));
- if (kp_vip_is_nat4(vip)) {
- m_key4.addr = pod->address.ip4;
- m_key4.port = vip->target_port;
- m_key4.protocol = 0;
- m_key4.fib_index = 0;
-
- m->vip.ip4 = vip->prefix.ip4;;
- m->node_ip.ip4.as_u32 = 0;
- m->pod_ip.ip4 = pod->address.ip4;
- m->vip_is_ipv6 = 0;
- m->node_ip_is_ipv6 = 0;
- m->pod_ip_is_ipv6 = 0;
- m->port = vip->port;
- m->node_port = vip->node_port;
- m->target_port = vip->target_port;
- m->vrf_id = 0;
- m->fib_index = 0;
-
- kv.key = m_key4.as_u64;
- kv.value = m - kpm->snat_mappings;
- clib_bihash_add_del_8_8(&kpm->mapping_by_pod, &kv, 1);
- } else {
- /* TBD */
- }
-
- }
- vec_free(to_be_added);
-
- //Recompute flows
- kp_vip_update_new_flow_table(vip);
-
- //Garbage collection maybe
- kp_vip_garbage_collection(vip);
-
- kp_put_writer_lock();
- return 0;
-}
-
-int kp_vip_del_pods_withlock(u32 vip_index, ip46_address_t *addresses, u32 n)
-{
- kp_main_t *kpm = &kp_main;
- u32 now = (u32) vlib_time_now(vlib_get_main());
- u32 *ip = 0;
-
- kp_vip_t *vip;
- if (!(vip = kp_vip_get_by_index(vip_index))) {
- return VNET_API_ERROR_NO_SUCH_ENTRY;
- }
-
- u32 *indexes = NULL;
- while (n--) {
- u32 i;
- if (kp_pod_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
- kp_vip_garbage_collection(vip);
-
- if (indexes != NULL) {
- vec_foreach(ip, indexes) {
- kpm->pods[*ip].flags &= ~KP_POD_FLAGS_USED;
- kpm->pods[*ip].last_used = now;
- }
-
- //Recompute flows
- kp_vip_update_new_flow_table(vip);
- }
-
- vec_free(indexes);
- return 0;
-}
-
-int kp_vip_del_pods(u32 vip_index, ip46_address_t *addresses, u32 n)
-{
- kp_get_writer_lock();
- int ret = kp_vip_del_pods_withlock(vip_index, addresses, n);
- kp_put_writer_lock();
- return ret;
-}
-
-/**
- * Add the VIP adjacency to the ip4 or ip6 fib
- */
-static void kp_vip_add_adjacency(kp_main_t *kpm, kp_vip_t *vip)
-{
- dpo_proto_t proto = 0;
- dpo_id_t dpo = DPO_INVALID;
- fib_prefix_t pfx = {};
- if (kp_vip_is_ip4(vip)) {
- pfx.fp_addr.ip4 = vip->prefix.ip4;
- pfx.fp_len = vip->plen - 96;
- pfx.fp_proto = FIB_PROTOCOL_IP4;
- proto = DPO_PROTO_IP4;
- } else {
- pfx.fp_addr.ip6 = vip->prefix.ip6;
- pfx.fp_len = vip->plen;
- pfx.fp_proto = FIB_PROTOCOL_IP6;
- proto = DPO_PROTO_IP6;
- }
- dpo_set(&dpo, kp_vip_is_nat4(vip)?kpm->dpo_nat4_type:kpm->dpo_nat6_type,
- proto, vip - kpm->vips);
- fib_table_entry_special_dpo_add(0,
- &pfx,
- FIB_SOURCE_PLUGIN_HI,
- FIB_ENTRY_FLAG_EXCLUSIVE,
- &dpo);
- dpo_reset(&dpo);
-}
-
-/**
- * Deletes the adjacency podsociated with the VIP
- */
-static void kp_vip_del_adjacency(kp_main_t *kpm, kp_vip_t *vip)
-{
- fib_prefix_t pfx = {};
- if (kp_vip_is_ip4(vip)) {
- pfx.fp_addr.ip4 = vip->prefix.ip4;
- pfx.fp_len = vip->plen - 96;
- pfx.fp_proto = FIB_PROTOCOL_IP4;
- } else {
- pfx.fp_addr.ip6 = vip->prefix.ip6;
- pfx.fp_len = vip->plen;
- pfx.fp_proto = FIB_PROTOCOL_IP6;
- }
- fib_table_entry_special_remove(0, &pfx, FIB_SOURCE_PLUGIN_HI);
-}
-
-int kp_vip_add(ip46_address_t *prefix, u8 plen, kp_vip_type_t type,
- u32 new_length, u32 *vip_index,
- u16 port, u16 target_port, u16 node_port)
-{
- kp_main_t *kpm = &kp_main;
- vlib_main_t *vm = kpm->vlib_main;
- kp_vip_t *vip;
- u32 key, *key_copy;
- uword * entry;
-
- kp_get_writer_lock();
- ip46_prefix_normalize(prefix, plen);
-
- if (!kp_vip_find_index_with_lock(prefix, plen, vip_index)) {
- kp_put_writer_lock();
- return VNET_API_ERROR_VALUE_EXIST;
- }
-
- if (!is_pow2(new_length)) {
- kp_put_writer_lock();
- return VNET_API_ERROR_INVALID_MEMORY_SIZE;
- }
-
- if (ip46_prefix_is_ip4(prefix, plen) &&
- (type != KP_VIP_TYPE_IP4_NAT44) &&
- (type != KP_VIP_TYPE_IP4_NAT46)) {
- kp_put_writer_lock();
- return VNET_API_ERROR_INVALID_ADDRESS_FAMILY;
- }
-
-
- //Allocate
- pool_get(kpm->vips, vip);
-
- //Init
- vip->prefix = *prefix;
- vip->plen = plen;
- vip->port = clib_host_to_net_u16(port);
- vip->target_port = clib_host_to_net_u16(target_port);
- vip->node_port = clib_host_to_net_u16(node_port);
- vip->last_garbage_collection = (u32) vlib_time_now(vlib_get_main());
- vip->type = type;
- vip->flags = KP_VIP_FLAGS_USED;
- vip->pod_indexes = 0;
-
- //Validate counters
- u32 i;
- for (i = 0; i < KP_N_VIP_COUNTERS; i++) {
- vlib_validate_simple_counter(&kpm->vip_counters[i], vip - kpm->vips);
- vlib_zero_simple_counter(&kpm->vip_counters[i], vip - kpm->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
- kp_vip_update_new_flow_table(vip);
-
- //Create adjacency to direct traffic
- kp_vip_add_adjacency(kpm, vip);
-
- //Create maping from nodeport to vip_index
- key = clib_host_to_net_u16(node_port);
- entry = hash_get_mem (kpm->nodeport_by_key, &key);
- if (entry) {
- kp_put_writer_lock();
- return VNET_API_ERROR_VALUE_EXIST;
- }
-
- key_copy = clib_mem_alloc (sizeof (*key_copy));
- clib_memcpy (key_copy, &key, sizeof (*key_copy));
- hash_set_mem (kpm->nodeport_by_key, key_copy, vip - kpm->vips);
-
- /* receive packets destined to NodeIP:NodePort */
- udp_register_dst_port (vm, node_port, kp4_nodeport_node.index, 1);
- udp_register_dst_port (vm, node_port, kp6_nodeport_node.index, 0);
-
- //Return result
- *vip_index = vip - kpm->vips;
-
- kp_put_writer_lock();
- return 0;
-}
-
-int kp_vip_del(u32 vip_index)
-{
- kp_main_t *kpm = &kp_main;
- kp_vip_t *vip;
- kp_get_writer_lock();
- if (!(vip = kp_vip_get_by_index(vip_index))) {
- kp_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 PODs
- ip46_address_t *pods = 0;
- kp_pod_t *pod;
- u32 *pod_index;
- pool_foreach(pod_index, vip->pod_indexes, {
- pod = &kpm->pods[*pod_index];
- vec_add1(pods, pod->address);
- });
- if (vec_len(pods))
- kp_vip_del_pods_withlock(vip_index, pods, vec_len(pods));
- vec_free(pods);
- }
-
- //Delete adjacency
- kp_vip_del_adjacency(kpm, vip);
-
- //Set the VIP pod unused
- vip->flags &= ~KP_VIP_FLAGS_USED;
-
- kp_put_writer_lock();
- return 0;
-}
-
-/* *INDENT-OFF* */
-VLIB_PLUGIN_REGISTER () = {
- .version = VPP_BUILD_VER,
- .description = "kube-proxy data plane",
-};
-/* *INDENT-ON* */
-
-u8 *format_kp_dpo (u8 * s, va_list * va)
-{
- index_t index = va_arg (*va, index_t);
- CLIB_UNUSED(u32 indent) = va_arg (*va, u32);
- kp_main_t *kpm = &kp_main;
- kp_vip_t *vip = pool_elt_at_index (kpm->vips, index);
- return format (s, "%U", format_kp_vip, vip);
-}
-
-static void kp_dpo_lock (dpo_id_t *dpo) {}
-static void kp_dpo_unlock (dpo_id_t *dpo) {}
-
-static fib_node_t *
-kp_fib_node_get_node (fib_node_index_t index)
-{
- kp_main_t *kpm = &kp_main;
- kp_pod_t *pod = pool_elt_at_index (kpm->pods, index);
- return (&pod->fib_node);
-}
-
-static void
-kp_fib_node_last_lock_gone (fib_node_t *node)
-{
-}
-
-static kp_pod_t *
-kp_pod_from_fib_node (fib_node_t *node)
-{
- return ((kp_pod_t*)(((char*)node) -
- STRUCT_OFFSET_OF(kp_pod_t, fib_node)));
-}
-
-static void
-kp_pod_stack (kp_pod_t *pod)
-{
- kp_main_t *kpm = &kp_main;
- kp_vip_t *vip = &kpm->vips[pod->vip_index];
- dpo_stack(kp_vip_is_nat4(vip)?kpm->dpo_nat4_type:kpm->dpo_nat6_type,
- kp_vip_is_ip4(vip)?DPO_PROTO_IP4:DPO_PROTO_IP6,
- &pod->dpo,
- fib_entry_contribute_ip_forwarding(
- pod->next_hop_fib_entry_index));
-}
-
-static fib_node_back_walk_rc_t
-kp_fib_node_back_walk_notify (fib_node_t *node,
- fib_node_back_walk_ctx_t *ctx)
-{
- kp_pod_stack(kp_pod_from_fib_node(node));
- return (FIB_NODE_BACK_WALK_CONTINUE);
-}
-
-int kp_nat4_interface_add_del (u32 sw_if_index, int is_del)
-{
- if (is_del)
- {
- vnet_feature_enable_disable ("ip4-unicast", "kp-nat4-in2out",
- sw_if_index, 0, 0, 0);
- }
- else
- {
- vnet_feature_enable_disable ("ip4-unicast", "kp-nat4-in2out",
- sw_if_index, 1, 0, 0);
- }
-
- return 0;
-}
-
-clib_error_t *
-kp_init (vlib_main_t * vm)
-{
- vlib_thread_main_t *tm = vlib_get_thread_main ();
- kp_main_t *kpm = &kp_main;
- kpm->vnet_main = vnet_get_main ();
- kpm->vlib_main = vm;
-
- kp_pod_t *default_pod;
- fib_node_vft_t kp_fib_node_vft = {
- .fnv_get = kp_fib_node_get_node,
- .fnv_last_lock = kp_fib_node_last_lock_gone,
- .fnv_back_walk = kp_fib_node_back_walk_notify,
- };
- dpo_vft_t kp_vft = {
- .dv_lock = kp_dpo_lock,
- .dv_unlock = kp_dpo_unlock,
- .dv_format = format_kp_dpo,
- };
-
- kpm->vips = 0;
- kpm->per_cpu = 0;
- vec_validate(kpm->per_cpu, tm->n_vlib_mains - 1);
- kpm->writer_lock = clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES, CLIB_CACHE_LINE_BYTES);
- kpm->writer_lock[0] = 0;
- kpm->per_cpu_sticky_buckets = KP_DEFAULT_PER_CPU_STICKY_BUCKETS;
- kpm->flow_timeout = KP_DEFAULT_FLOW_TIMEOUT;
- kpm->dpo_nat4_type = dpo_register_new_type(&kp_vft, kp_dpo_nat4_nodes);
- kpm->dpo_nat6_type = dpo_register_new_type(&kp_vft, kp_dpo_nat6_nodes);
- kpm->fib_node_type = fib_node_register_new_type(&kp_fib_node_vft);
-
- //Init POD reference counters
- vlib_refcount_init(&kpm->pod_refcount);
-
- //Allocate and init default POD.
- kpm->pods = 0;
- pool_get(kpm->pods, default_pod);
- default_pod->flags = 0;
- default_pod->dpo.dpoi_next_node = KP_NEXT_DROP;
- default_pod->vip_index = ~0;
- default_pod->address.ip6.as_u64[0] = 0xffffffffffffffffL;
- default_pod->address.ip6.as_u64[1] = 0xffffffffffffffffL;
-
- kpm->nodeport_by_key
- = hash_create_mem (0, sizeof(u16), sizeof (uword));
-
- clib_bihash_init_8_8 (&kpm->mapping_by_pod,
- "mapping_by_pod", KP_MAPPING_BUCKETS,
- KP_MAPPING_MEMORY_SIZE);
-
-#define _(a,b,c) kpm->vip_counters[c].name = b;
- kp_foreach_vip_counter
-#undef _
- return NULL;
-}
-
-VLIB_INIT_FUNCTION (kp_init);