* Copyright(c) 2019 Intel Corporation
*/
+#include <string.h>
+
+#include <rte_eal_memconfig.h>
#include <rte_errno.h>
+#include <rte_hash.h>
+#include <rte_hash_crc.h>
+#include <rte_malloc.h>
+#include <rte_random.h>
+#include <rte_rwlock.h>
+#include <rte_tailq.h>
#include "rte_ipsec_sad.h"
+/*
+ * Rules are stored in three hash tables depending on key_type.
+ * Each rule will also be stored in SPI_ONLY table.
+ * for each data entry within this table last two bits are reserved to
+ * indicate presence of entries with the same SPI in DIP and DIP+SIP tables.
+ */
+
+#define SAD_PREFIX "SAD_"
+/* "SAD_<name>" */
+#define SAD_FORMAT SAD_PREFIX "%s"
+
+#define DEFAULT_HASH_FUNC rte_hash_crc
+#define MIN_HASH_ENTRIES 8U /* From rte_cuckoo_hash.h */
+
+struct hash_cnt {
+ uint32_t cnt_dip;
+ uint32_t cnt_dip_sip;
+};
+
+struct rte_ipsec_sad {
+ char name[RTE_IPSEC_SAD_NAMESIZE];
+ struct rte_hash *hash[RTE_IPSEC_SAD_KEY_TYPE_MASK];
+ uint32_t keysize[RTE_IPSEC_SAD_KEY_TYPE_MASK];
+ uint32_t init_val;
+ /* Array to track number of more specific rules
+ * (spi_dip or spi_dip_sip). Used only in add/delete
+ * as a helper struct.
+ */
+ __extension__ struct hash_cnt cnt_arr[];
+};
+
+TAILQ_HEAD(rte_ipsec_sad_list, rte_tailq_entry);
+static struct rte_tailq_elem rte_ipsec_sad_tailq = {
+ .name = "RTE_IPSEC_SAD",
+};
+EAL_REGISTER_TAILQ(rte_ipsec_sad_tailq)
+
+#define SET_BIT(ptr, bit) (void *)((uintptr_t)(ptr) | (uintptr_t)(bit))
+#define CLEAR_BIT(ptr, bit) (void *)((uintptr_t)(ptr) & ~(uintptr_t)(bit))
+#define GET_BIT(ptr, bit) (void *)((uintptr_t)(ptr) & (uintptr_t)(bit))
+
+/*
+ * @internal helper function
+ * Add a rule of type SPI_DIP or SPI_DIP_SIP.
+ * Inserts a rule into an appropriate hash table,
+ * updates the value for a given SPI in SPI_ONLY hash table
+ * reflecting presence of more specific rule type in two LSBs.
+ * Updates a counter that reflects the number of rules whith the same SPI.
+ */
+static inline int
+add_specific(struct rte_ipsec_sad *sad, const void *key,
+ int key_type, void *sa)
+{
+ void *tmp_val;
+ int ret, notexist;
+
+ /* Check if the key is present in the table.
+ * Need for further accaunting in cnt_arr
+ */
+ ret = rte_hash_lookup_with_hash(sad->hash[key_type], key,
+ rte_hash_crc(key, sad->keysize[key_type], sad->init_val));
+ notexist = (ret == -ENOENT);
+
+ /* Add an SA to the corresponding table.*/
+ ret = rte_hash_add_key_with_hash_data(sad->hash[key_type], key,
+ rte_hash_crc(key, sad->keysize[key_type], sad->init_val), sa);
+ if (ret != 0)
+ return ret;
+
+ /* Check if there is an entry in SPI only table with the same SPI */
+ ret = rte_hash_lookup_with_hash_data(sad->hash[RTE_IPSEC_SAD_SPI_ONLY],
+ key, rte_hash_crc(key, sad->keysize[RTE_IPSEC_SAD_SPI_ONLY],
+ sad->init_val), &tmp_val);
+ if (ret < 0)
+ tmp_val = NULL;
+ tmp_val = SET_BIT(tmp_val, key_type);
+
+ /* Add an entry into SPI only table */
+ ret = rte_hash_add_key_with_hash_data(
+ sad->hash[RTE_IPSEC_SAD_SPI_ONLY], key,
+ rte_hash_crc(key, sad->keysize[RTE_IPSEC_SAD_SPI_ONLY],
+ sad->init_val), tmp_val);
+ if (ret != 0)
+ return ret;
+
+ /* Update a counter for a given SPI */
+ ret = rte_hash_lookup_with_hash(sad->hash[RTE_IPSEC_SAD_SPI_ONLY], key,
+ rte_hash_crc(key, sad->keysize[RTE_IPSEC_SAD_SPI_ONLY],
+ sad->init_val));
+ if (ret < 0)
+ return ret;
+ if (key_type == RTE_IPSEC_SAD_SPI_DIP)
+ sad->cnt_arr[ret].cnt_dip += notexist;
+ else
+ sad->cnt_arr[ret].cnt_dip_sip += notexist;
+
+ return 0;
+}
+
int
-rte_ipsec_sad_add(__rte_unused struct rte_ipsec_sad *sad,
- __rte_unused const union rte_ipsec_sad_key *key,
- __rte_unused int key_type, __rte_unused void *sa)
+rte_ipsec_sad_add(struct rte_ipsec_sad *sad,
+ const union rte_ipsec_sad_key *key,
+ int key_type, void *sa)
{
- return -ENOTSUP;
+ void *tmp_val;
+ int ret;
+
+ if ((sad == NULL) || (key == NULL) || (sa == NULL) ||
+ /* sa must be 4 byte aligned */
+ (GET_BIT(sa, RTE_IPSEC_SAD_KEY_TYPE_MASK) != 0))
+ return -EINVAL;
+
+ /*
+ * Rules are stored in three hash tables depending on key_type.
+ * All rules will also have an entry in SPI_ONLY table, with entry
+ * value's two LSB's also indicating presence of rule with this SPI
+ * in other tables.
+ */
+ switch (key_type) {
+ case(RTE_IPSEC_SAD_SPI_ONLY):
+ ret = rte_hash_lookup_with_hash_data(sad->hash[key_type],
+ key, rte_hash_crc(key, sad->keysize[key_type],
+ sad->init_val), &tmp_val);
+ if (ret >= 0)
+ tmp_val = SET_BIT(sa, GET_BIT(tmp_val,
+ RTE_IPSEC_SAD_KEY_TYPE_MASK));
+ else
+ tmp_val = sa;
+ ret = rte_hash_add_key_with_hash_data(sad->hash[key_type],
+ key, rte_hash_crc(key, sad->keysize[key_type],
+ sad->init_val), tmp_val);
+ return ret;
+ case(RTE_IPSEC_SAD_SPI_DIP):
+ case(RTE_IPSEC_SAD_SPI_DIP_SIP):
+ return add_specific(sad, key, key_type, sa);
+ default:
+ return -EINVAL;
+ }
+}
+
+/*
+ * @internal helper function
+ * Delete a rule of type SPI_DIP or SPI_DIP_SIP.
+ * Deletes an entry from an appropriate hash table and decrements
+ * an entry counter for given SPI.
+ * If entry to remove is the last one with given SPI within the table,
+ * then it will also update related entry in SPI_ONLY table.
+ * Removes an entry from SPI_ONLY hash table if there no rule left
+ * for this SPI in any table.
+ */
+static inline int
+del_specific(struct rte_ipsec_sad *sad, const void *key, int key_type)
+{
+ void *tmp_val;
+ int ret;
+ uint32_t *cnt;
+
+ /* Remove an SA from the corresponding table.*/
+ ret = rte_hash_del_key_with_hash(sad->hash[key_type], key,
+ rte_hash_crc(key, sad->keysize[key_type], sad->init_val));
+ if (ret < 0)
+ return ret;
+
+ /* Get an index of cnt_arr entry for a given SPI */
+ ret = rte_hash_lookup_with_hash_data(sad->hash[RTE_IPSEC_SAD_SPI_ONLY],
+ key, rte_hash_crc(key, sad->keysize[RTE_IPSEC_SAD_SPI_ONLY],
+ sad->init_val), &tmp_val);
+ if (ret < 0)
+ return ret;
+ cnt = (key_type == RTE_IPSEC_SAD_SPI_DIP) ?
+ &sad->cnt_arr[ret].cnt_dip :
+ &sad->cnt_arr[ret].cnt_dip_sip;
+ if (--(*cnt) != 0)
+ return 0;
+
+ /* corresponding counter is 0, clear the bit indicating
+ * the presence of more specific rule for a given SPI.
+ */
+ tmp_val = CLEAR_BIT(tmp_val, key_type);
+
+ /* if there are no rules left with same SPI,
+ * remove an entry from SPI_only table
+ */
+ if (tmp_val == NULL)
+ ret = rte_hash_del_key_with_hash(
+ sad->hash[RTE_IPSEC_SAD_SPI_ONLY], key,
+ rte_hash_crc(key, sad->keysize[RTE_IPSEC_SAD_SPI_ONLY],
+ sad->init_val));
+ else
+ ret = rte_hash_add_key_with_hash_data(
+ sad->hash[RTE_IPSEC_SAD_SPI_ONLY], key,
+ rte_hash_crc(key, sad->keysize[RTE_IPSEC_SAD_SPI_ONLY],
+ sad->init_val), tmp_val);
+ if (ret < 0)
+ return ret;
+ return 0;
}
int
-rte_ipsec_sad_del(__rte_unused struct rte_ipsec_sad *sad,
- __rte_unused const union rte_ipsec_sad_key *key,
- __rte_unused int key_type)
+rte_ipsec_sad_del(struct rte_ipsec_sad *sad,
+ const union rte_ipsec_sad_key *key,
+ int key_type)
{
- return -ENOTSUP;
+ void *tmp_val;
+ int ret;
+
+ if ((sad == NULL) || (key == NULL))
+ return -EINVAL;
+ switch (key_type) {
+ case(RTE_IPSEC_SAD_SPI_ONLY):
+ ret = rte_hash_lookup_with_hash_data(sad->hash[key_type],
+ key, rte_hash_crc(key, sad->keysize[key_type],
+ sad->init_val), &tmp_val);
+ if (ret < 0)
+ return ret;
+ if (GET_BIT(tmp_val, RTE_IPSEC_SAD_KEY_TYPE_MASK) == 0) {
+ ret = rte_hash_del_key_with_hash(sad->hash[key_type],
+ key, rte_hash_crc(key, sad->keysize[key_type],
+ sad->init_val));
+ ret = ret < 0 ? ret : 0;
+ } else {
+ tmp_val = GET_BIT(tmp_val,
+ RTE_IPSEC_SAD_KEY_TYPE_MASK);
+ ret = rte_hash_add_key_with_hash_data(
+ sad->hash[key_type], key,
+ rte_hash_crc(key, sad->keysize[key_type],
+ sad->init_val), tmp_val);
+ }
+ return ret;
+ case(RTE_IPSEC_SAD_SPI_DIP):
+ case(RTE_IPSEC_SAD_SPI_DIP_SIP):
+ return del_specific(sad, key, key_type);
+ default:
+ return -EINVAL;
+ }
}
struct rte_ipsec_sad *
-rte_ipsec_sad_create(__rte_unused const char *name,
- __rte_unused const struct rte_ipsec_sad_conf *conf)
+rte_ipsec_sad_create(const char *name, const struct rte_ipsec_sad_conf *conf)
{
- return NULL;
+ char hash_name[RTE_HASH_NAMESIZE];
+ char sad_name[RTE_IPSEC_SAD_NAMESIZE];
+ struct rte_tailq_entry *te;
+ struct rte_ipsec_sad_list *sad_list;
+ struct rte_ipsec_sad *sad, *tmp_sad = NULL;
+ struct rte_hash_parameters hash_params = {0};
+ int ret;
+ uint32_t sa_sum;
+
+ RTE_BUILD_BUG_ON(RTE_IPSEC_SAD_KEY_TYPE_MASK != 3);
+
+ if ((name == NULL) || (conf == NULL) ||
+ ((conf->max_sa[RTE_IPSEC_SAD_SPI_ONLY] == 0) &&
+ (conf->max_sa[RTE_IPSEC_SAD_SPI_DIP] == 0) &&
+ (conf->max_sa[RTE_IPSEC_SAD_SPI_DIP_SIP] == 0))) {
+ rte_errno = EINVAL;
+ return NULL;
+ }
+
+ ret = snprintf(sad_name, RTE_IPSEC_SAD_NAMESIZE, SAD_FORMAT, name);
+ if (ret < 0 || ret >= RTE_IPSEC_SAD_NAMESIZE) {
+ rte_errno = ENAMETOOLONG;
+ return NULL;
+ }
+
+ /** Init SAD*/
+ sa_sum = RTE_MAX(MIN_HASH_ENTRIES,
+ conf->max_sa[RTE_IPSEC_SAD_SPI_ONLY]) +
+ RTE_MAX(MIN_HASH_ENTRIES,
+ conf->max_sa[RTE_IPSEC_SAD_SPI_DIP]) +
+ RTE_MAX(MIN_HASH_ENTRIES,
+ conf->max_sa[RTE_IPSEC_SAD_SPI_DIP_SIP]);
+ sad = rte_zmalloc_socket(NULL, sizeof(*sad) +
+ (sizeof(struct hash_cnt) * sa_sum),
+ RTE_CACHE_LINE_SIZE, conf->socket_id);
+ if (sad == NULL) {
+ rte_errno = ENOMEM;
+ return NULL;
+ }
+ memcpy(sad->name, sad_name, sizeof(sad_name));
+
+ hash_params.hash_func = DEFAULT_HASH_FUNC;
+ hash_params.hash_func_init_val = rte_rand();
+ sad->init_val = hash_params.hash_func_init_val;
+ hash_params.socket_id = conf->socket_id;
+ hash_params.name = hash_name;
+ if (conf->flags & RTE_IPSEC_SAD_FLAG_RW_CONCURRENCY)
+ hash_params.extra_flag = RTE_HASH_EXTRA_FLAGS_RW_CONCURRENCY;
+
+ /** Init hash[RTE_IPSEC_SAD_SPI_ONLY] for SPI only */
+ snprintf(hash_name, sizeof(hash_name), "sad_1_%p", sad);
+ hash_params.key_len = sizeof(((struct rte_ipsec_sadv4_key *)0)->spi);
+ sad->keysize[RTE_IPSEC_SAD_SPI_ONLY] = hash_params.key_len;
+ hash_params.entries = sa_sum;
+ sad->hash[RTE_IPSEC_SAD_SPI_ONLY] = rte_hash_create(&hash_params);
+ if (sad->hash[RTE_IPSEC_SAD_SPI_ONLY] == NULL) {
+ rte_ipsec_sad_destroy(sad);
+ return NULL;
+ }
+
+ /** Init hash[RTE_IPSEC_SAD_SPI_DIP] for SPI + DIP */
+ snprintf(hash_name, sizeof(hash_name), "sad_2_%p", sad);
+ if (conf->flags & RTE_IPSEC_SAD_FLAG_IPV6)
+ hash_params.key_len +=
+ sizeof(((struct rte_ipsec_sadv6_key *)0)->dip);
+ else
+ hash_params.key_len +=
+ sizeof(((struct rte_ipsec_sadv4_key *)0)->dip);
+ sad->keysize[RTE_IPSEC_SAD_SPI_DIP] = hash_params.key_len;
+ hash_params.entries = RTE_MAX(MIN_HASH_ENTRIES,
+ conf->max_sa[RTE_IPSEC_SAD_SPI_DIP]);
+ sad->hash[RTE_IPSEC_SAD_SPI_DIP] = rte_hash_create(&hash_params);
+ if (sad->hash[RTE_IPSEC_SAD_SPI_DIP] == NULL) {
+ rte_ipsec_sad_destroy(sad);
+ return NULL;
+ }
+
+ /** Init hash[[RTE_IPSEC_SAD_SPI_DIP_SIP] for SPI + DIP + SIP */
+ snprintf(hash_name, sizeof(hash_name), "sad_3_%p", sad);
+ if (conf->flags & RTE_IPSEC_SAD_FLAG_IPV6)
+ hash_params.key_len +=
+ sizeof(((struct rte_ipsec_sadv6_key *)0)->sip);
+ else
+ hash_params.key_len +=
+ sizeof(((struct rte_ipsec_sadv4_key *)0)->sip);
+ sad->keysize[RTE_IPSEC_SAD_SPI_DIP_SIP] = hash_params.key_len;
+ hash_params.entries = RTE_MAX(MIN_HASH_ENTRIES,
+ conf->max_sa[RTE_IPSEC_SAD_SPI_DIP_SIP]);
+ sad->hash[RTE_IPSEC_SAD_SPI_DIP_SIP] = rte_hash_create(&hash_params);
+ if (sad->hash[RTE_IPSEC_SAD_SPI_DIP_SIP] == NULL) {
+ rte_ipsec_sad_destroy(sad);
+ return NULL;
+ }
+
+ sad_list = RTE_TAILQ_CAST(rte_ipsec_sad_tailq.head,
+ rte_ipsec_sad_list);
+ rte_mcfg_tailq_write_lock();
+ /* guarantee there's no existing */
+ TAILQ_FOREACH(te, sad_list, next) {
+ tmp_sad = (struct rte_ipsec_sad *)te->data;
+ if (strncmp(sad_name, tmp_sad->name,
+ RTE_IPSEC_SAD_NAMESIZE) == 0)
+ break;
+ }
+ if (te != NULL) {
+ rte_mcfg_tailq_write_unlock();
+ rte_errno = EEXIST;
+ rte_ipsec_sad_destroy(sad);
+ return NULL;
+ }
+
+ /* allocate tailq entry */
+ te = rte_zmalloc("IPSEC_SAD_TAILQ_ENTRY", sizeof(*te), 0);
+ if (te == NULL) {
+ rte_mcfg_tailq_write_unlock();
+ rte_errno = ENOMEM;
+ rte_ipsec_sad_destroy(sad);
+ return NULL;
+ }
+
+ te->data = (void *)sad;
+ TAILQ_INSERT_TAIL(sad_list, te, next);
+ rte_mcfg_tailq_write_unlock();
+ return sad;
}
struct rte_ipsec_sad *
-rte_ipsec_sad_find_existing(__rte_unused const char *name)
+rte_ipsec_sad_find_existing(const char *name)
{
- return NULL;
+ char sad_name[RTE_IPSEC_SAD_NAMESIZE];
+ struct rte_ipsec_sad *sad = NULL;
+ struct rte_tailq_entry *te;
+ struct rte_ipsec_sad_list *sad_list;
+ int ret;
+
+ ret = snprintf(sad_name, RTE_IPSEC_SAD_NAMESIZE, SAD_FORMAT, name);
+ if (ret < 0 || ret >= RTE_IPSEC_SAD_NAMESIZE) {
+ rte_errno = ENAMETOOLONG;
+ return NULL;
+ }
+
+ sad_list = RTE_TAILQ_CAST(rte_ipsec_sad_tailq.head,
+ rte_ipsec_sad_list);
+
+ rte_mcfg_tailq_read_lock();
+ TAILQ_FOREACH(te, sad_list, next) {
+ sad = (struct rte_ipsec_sad *) te->data;
+ if (strncmp(sad_name, sad->name, RTE_IPSEC_SAD_NAMESIZE) == 0)
+ break;
+ }
+ rte_mcfg_tailq_read_unlock();
+
+ if (te == NULL) {
+ rte_errno = ENOENT;
+ return NULL;
+ }
+
+ return sad;
}
void
-rte_ipsec_sad_destroy(__rte_unused struct rte_ipsec_sad *sad)
+rte_ipsec_sad_destroy(struct rte_ipsec_sad *sad)
{
- return;
+ struct rte_tailq_entry *te;
+ struct rte_ipsec_sad_list *sad_list;
+
+ if (sad == NULL)
+ return;
+
+ sad_list = RTE_TAILQ_CAST(rte_ipsec_sad_tailq.head,
+ rte_ipsec_sad_list);
+ rte_mcfg_tailq_write_lock();
+ TAILQ_FOREACH(te, sad_list, next) {
+ if (te->data == (void *)sad)
+ break;
+ }
+ if (te != NULL)
+ TAILQ_REMOVE(sad_list, te, next);
+
+ rte_mcfg_tailq_write_unlock();
+
+ rte_hash_free(sad->hash[RTE_IPSEC_SAD_SPI_ONLY]);
+ rte_hash_free(sad->hash[RTE_IPSEC_SAD_SPI_DIP]);
+ rte_hash_free(sad->hash[RTE_IPSEC_SAD_SPI_DIP_SIP]);
+ rte_free(sad);
+ if (te != NULL)
+ rte_free(te);
+}
+
+/*
+ * @internal helper function
+ * Lookup a batch of keys in three hash tables.
+ * First lookup key in SPI_ONLY table.
+ * If there is an entry for the corresponding SPI check its value.
+ * Two least significant bits of the value indicate
+ * the presence of more specific rule in other tables.
+ * Perform additional lookup in corresponding hash tables
+ * and update the value if lookup succeeded.
+ */
+static int
+__ipsec_sad_lookup(const struct rte_ipsec_sad *sad,
+ const union rte_ipsec_sad_key *keys[], void *sa[], uint32_t n)
+{
+ const void *keys_2[RTE_HASH_LOOKUP_BULK_MAX];
+ const void *keys_3[RTE_HASH_LOOKUP_BULK_MAX];
+ void *vals_2[RTE_HASH_LOOKUP_BULK_MAX] = {NULL};
+ void *vals_3[RTE_HASH_LOOKUP_BULK_MAX] = {NULL};
+ uint32_t idx_2[RTE_HASH_LOOKUP_BULK_MAX];
+ uint32_t idx_3[RTE_HASH_LOOKUP_BULK_MAX];
+ uint64_t mask_1, mask_2, mask_3;
+ uint64_t map, map_spec;
+ uint32_t n_2 = 0;
+ uint32_t n_3 = 0;
+ uint32_t i;
+ int found = 0;
+ hash_sig_t hash_sig[RTE_HASH_LOOKUP_BULK_MAX];
+ hash_sig_t hash_sig_2[RTE_HASH_LOOKUP_BULK_MAX];
+ hash_sig_t hash_sig_3[RTE_HASH_LOOKUP_BULK_MAX];
+
+ for (i = 0; i < n; i++) {
+ sa[i] = NULL;
+ hash_sig[i] = rte_hash_crc_4byte(keys[i]->v4.spi,
+ sad->init_val);
+ }
+
+ /*
+ * Lookup keys in SPI only hash table first.
+ */
+ rte_hash_lookup_with_hash_bulk_data(sad->hash[RTE_IPSEC_SAD_SPI_ONLY],
+ (const void **)keys, hash_sig, n, &mask_1, sa);
+ for (map = mask_1; map; map &= (map - 1)) {
+ i = rte_bsf64(map);
+ /*
+ * if returned value indicates presence of a rule in other
+ * tables save a key for further lookup.
+ */
+ if ((uintptr_t)sa[i] & RTE_IPSEC_SAD_SPI_DIP_SIP) {
+ idx_3[n_3] = i;
+ hash_sig_3[n_3] = rte_hash_crc(keys[i],
+ sad->keysize[RTE_IPSEC_SAD_SPI_DIP_SIP],
+ sad->init_val);
+ keys_3[n_3++] = keys[i];
+ }
+ if ((uintptr_t)sa[i] & RTE_IPSEC_SAD_SPI_DIP) {
+ idx_2[n_2] = i;
+ hash_sig_2[n_2] = rte_hash_crc(keys[i],
+ sad->keysize[RTE_IPSEC_SAD_SPI_DIP],
+ sad->init_val);
+ keys_2[n_2++] = keys[i];
+ }
+ /* clear 2 LSB's which indicate the presence
+ * of more specific rules
+ */
+ sa[i] = CLEAR_BIT(sa[i], RTE_IPSEC_SAD_KEY_TYPE_MASK);
+ }
+
+ /* Lookup for more specific rules in SPI_DIP table */
+ if (n_2 != 0) {
+ rte_hash_lookup_with_hash_bulk_data(
+ sad->hash[RTE_IPSEC_SAD_SPI_DIP],
+ keys_2, hash_sig_2, n_2, &mask_2, vals_2);
+ for (map_spec = mask_2; map_spec; map_spec &= (map_spec - 1)) {
+ i = rte_bsf64(map_spec);
+ sa[idx_2[i]] = vals_2[i];
+ }
+ }
+ /* Lookup for more specific rules in SPI_DIP_SIP table */
+ if (n_3 != 0) {
+ rte_hash_lookup_with_hash_bulk_data(
+ sad->hash[RTE_IPSEC_SAD_SPI_DIP_SIP],
+ keys_3, hash_sig_3, n_3, &mask_3, vals_3);
+ for (map_spec = mask_3; map_spec; map_spec &= (map_spec - 1)) {
+ i = rte_bsf64(map_spec);
+ sa[idx_3[i]] = vals_3[i];
+ }
+ }
+
+ for (i = 0; i < n; i++)
+ found += (sa[i] != NULL);
+
+ return found;
}
int
-rte_ipsec_sad_lookup(__rte_unused const struct rte_ipsec_sad *sad,
- __rte_unused const union rte_ipsec_sad_key *keys[],
- __rte_unused void *sa[], __rte_unused uint32_t n)
+rte_ipsec_sad_lookup(const struct rte_ipsec_sad *sad,
+ const union rte_ipsec_sad_key *keys[], void *sa[], uint32_t n)
{
- return -ENOTSUP;
+ uint32_t num, i = 0;
+ int found = 0;
+
+ if (unlikely((sad == NULL) || (keys == NULL) || (sa == NULL)))
+ return -EINVAL;
+
+ do {
+ num = RTE_MIN(n - i, (uint32_t)RTE_HASH_LOOKUP_BULK_MAX);
+ found += __ipsec_sad_lookup(sad,
+ &keys[i], &sa[i], num);
+ i += num;
+ } while (i != n);
+
+ return found;
}
git.droids-corp.org / dpdk.git / blobdiff