ipsec: add support for chained buffers
Type: feature
Change-Id: Ie072a7c2bbb1e4a77f7001754f01897efd30fc53
Signed-off-by: Filip Tehlar <ftehlar@cisco.com>
diff --git a/src/vnet/crypto/crypto.c b/src/vnet/crypto/crypto.c
index 6cd1210..4458bfc 100644
--- a/src/vnet/crypto/crypto.c
+++ b/src/vnet/crypto/crypto.c
@@ -19,31 +19,52 @@
vnet_crypto_main_t crypto_main;
+static_always_inline void
+crypto_set_op_status (vnet_crypto_op_t * ops[], u32 n_ops, int status)
+{
+ while (n_ops--)
+ {
+ ops[0]->status = status;
+ ops++;
+ }
+}
+
static_always_inline u32
vnet_crypto_process_ops_call_handler (vlib_main_t * vm,
vnet_crypto_main_t * cm,
vnet_crypto_op_id_t opt,
- vnet_crypto_op_t * ops[], u32 n_ops)
+ vnet_crypto_op_t * ops[],
+ vnet_crypto_op_chunk_t * chunks,
+ u32 n_ops)
{
+ u32 rv = 0;
if (n_ops == 0)
return 0;
- if (cm->ops_handlers[opt] == 0)
+ if (chunks)
{
- while (n_ops--)
- {
- ops[0]->status = VNET_CRYPTO_OP_STATUS_FAIL_NO_HANDLER;
- ops++;
- }
- return 0;
- }
- return (cm->ops_handlers[opt]) (vm, ops, n_ops);
+ if (cm->chained_ops_handlers[opt] == 0)
+ crypto_set_op_status (ops, n_ops,
+ VNET_CRYPTO_OP_STATUS_FAIL_NO_HANDLER);
+ else
+ rv = (cm->chained_ops_handlers[opt]) (vm, ops, chunks, n_ops);
+ }
+ else
+ {
+ if (cm->ops_handlers[opt] == 0)
+ crypto_set_op_status (ops, n_ops,
+ VNET_CRYPTO_OP_STATUS_FAIL_NO_HANDLER);
+ else
+ rv = (cm->ops_handlers[opt]) (vm, ops, n_ops);
+ }
+ return rv;
}
-u32
-vnet_crypto_process_ops (vlib_main_t * vm, vnet_crypto_op_t ops[], u32 n_ops)
+static_always_inline u32
+vnet_crypto_process_ops_inline (vlib_main_t * vm, vnet_crypto_op_t ops[],
+ vnet_crypto_op_chunk_t * chunks, u32 n_ops)
{
vnet_crypto_main_t *cm = &crypto_main;
const int op_q_size = VLIB_FRAME_SIZE;
@@ -61,7 +82,8 @@
if (current_op_type != opt || n_op_queue >= op_q_size)
{
rv += vnet_crypto_process_ops_call_handler (vm, cm, current_op_type,
- op_queue, n_op_queue);
+ op_queue, chunks,
+ n_op_queue);
n_op_queue = 0;
current_op_type = opt;
}
@@ -70,11 +92,24 @@
}
rv += vnet_crypto_process_ops_call_handler (vm, cm, current_op_type,
- op_queue, n_op_queue);
+ op_queue, chunks, n_op_queue);
return rv;
}
u32
+vnet_crypto_process_ops (vlib_main_t * vm, vnet_crypto_op_t ops[], u32 n_ops)
+{
+ return vnet_crypto_process_ops_inline (vm, ops, 0, n_ops);
+}
+
+u32
+vnet_crypto_process_chained_ops (vlib_main_t * vm, vnet_crypto_op_t ops[],
+ vnet_crypto_op_chunk_t * chunks, u32 n_ops)
+{
+ return vnet_crypto_process_ops_inline (vm, ops, chunks, n_ops);
+}
+
+u32
vnet_crypto_register_engine (vlib_main_t * vm, char *name, int prio,
char *desc)
{
@@ -91,13 +126,40 @@
return p - cm->engines;
}
+static_always_inline void
+crypto_set_active_engine (vnet_crypto_op_data_t * od,
+ vnet_crypto_op_id_t id, u32 ei,
+ crypto_op_class_type_t oct)
+{
+ vnet_crypto_main_t *cm = &crypto_main;
+ vnet_crypto_engine_t *ce = vec_elt_at_index (cm->engines, ei);
+
+ if (oct == CRYPTO_OP_BOTH || oct == CRYPTO_OP_CHAINED)
+ {
+ if (ce->chained_ops_handlers[id])
+ {
+ od->active_engine_index_chained = ei;
+ cm->chained_ops_handlers[id] = ce->chained_ops_handlers[id];
+ }
+ }
+
+ if (oct == CRYPTO_OP_BOTH || oct == CRYPTO_OP_SIMPLE)
+ {
+ if (ce->ops_handlers[id])
+ {
+ od->active_engine_index_simple = ei;
+ cm->ops_handlers[id] = ce->ops_handlers[id];
+ }
+ }
+}
+
int
-vnet_crypto_set_handler (char *alg_name, char *engine)
+vnet_crypto_set_handler2 (char *alg_name, char *engine,
+ crypto_op_class_type_t oct)
{
uword *p;
vnet_crypto_main_t *cm = &crypto_main;
vnet_crypto_alg_data_t *ad;
- vnet_crypto_engine_t *ce;
int i;
p = hash_get_mem (cm->alg_index_by_name, alg_name);
@@ -110,20 +172,15 @@
if (!p)
return -1;
- ce = vec_elt_at_index (cm->engines, p[0]);
-
- for (i = 0; i < VNET_CRYPTO_OP_N_TYPES; i++)
+ for (i = 0; i < VNET_CRYPTO_OP_N_TYPES; i += 2)
{
vnet_crypto_op_data_t *od;
vnet_crypto_op_id_t id = ad->op_by_type[i];
if (id == 0)
continue;
+
od = cm->opt_data + id;
- if (ce->ops_handlers[id])
- {
- od->active_engine_index = p[0];
- cm->ops_handlers[id] = ce->ops_handlers[id];
- }
+ crypto_set_active_engine (od, id, p[0], oct);
}
return 0;
@@ -138,34 +195,78 @@
}
void
-vnet_crypto_register_ops_handler (vlib_main_t * vm, u32 engine_index,
- vnet_crypto_op_id_t opt,
- vnet_crypto_ops_handler_t * fn)
+vnet_crypto_register_ops_handler_inline (vlib_main_t * vm, u32 engine_index,
+ vnet_crypto_op_id_t opt,
+ vnet_crypto_ops_handler_t * fn,
+ vnet_crypto_chained_ops_handler_t *
+ cfn)
{
vnet_crypto_main_t *cm = &crypto_main;
vnet_crypto_engine_t *ae, *e = vec_elt_at_index (cm->engines, engine_index);
vnet_crypto_op_data_t *otd = cm->opt_data + opt;
vec_validate_aligned (cm->ops_handlers, VNET_CRYPTO_N_OP_IDS - 1,
CLIB_CACHE_LINE_BYTES);
- e->ops_handlers[opt] = fn;
+ vec_validate_aligned (cm->chained_ops_handlers, VNET_CRYPTO_N_OP_IDS - 1,
+ CLIB_CACHE_LINE_BYTES);
- if (otd->active_engine_index == ~0)
+ if (fn)
{
- otd->active_engine_index = engine_index;
- cm->ops_handlers[opt] = fn;
- return;
+ e->ops_handlers[opt] = fn;
+ if (otd->active_engine_index_simple == ~0)
+ {
+ otd->active_engine_index_simple = engine_index;
+ cm->ops_handlers[opt] = fn;
+ }
+
+ ae = vec_elt_at_index (cm->engines, otd->active_engine_index_simple);
+ if (ae->priority < e->priority)
+ crypto_set_active_engine (otd, opt, engine_index, CRYPTO_OP_SIMPLE);
}
- ae = vec_elt_at_index (cm->engines, otd->active_engine_index);
- if (ae->priority < e->priority)
+
+ if (cfn)
{
- otd->active_engine_index = engine_index;
- cm->ops_handlers[opt] = fn;
+ e->chained_ops_handlers[opt] = cfn;
+ if (otd->active_engine_index_chained == ~0)
+ {
+ otd->active_engine_index_chained = engine_index;
+ cm->chained_ops_handlers[opt] = cfn;
+ }
+
+ ae = vec_elt_at_index (cm->engines, otd->active_engine_index_chained);
+ if (ae->priority < e->priority)
+ crypto_set_active_engine (otd, opt, engine_index, CRYPTO_OP_CHAINED);
}
return;
}
void
+vnet_crypto_register_ops_handler (vlib_main_t * vm, u32 engine_index,
+ vnet_crypto_op_id_t opt,
+ vnet_crypto_ops_handler_t * fn)
+{
+ vnet_crypto_register_ops_handler_inline (vm, engine_index, opt, fn, 0);
+}
+
+void
+vnet_crypto_register_chained_ops_handler (vlib_main_t * vm, u32 engine_index,
+ vnet_crypto_op_id_t opt,
+ vnet_crypto_chained_ops_handler_t *
+ fn)
+{
+ vnet_crypto_register_ops_handler_inline (vm, engine_index, opt, 0, fn);
+}
+
+void
+vnet_crypto_register_ops_handlers (vlib_main_t * vm, u32 engine_index,
+ vnet_crypto_op_id_t opt,
+ vnet_crypto_ops_handler_t * fn,
+ vnet_crypto_chained_ops_handler_t * cfn)
+{
+ vnet_crypto_register_ops_handler_inline (vm, engine_index, opt, fn, cfn);
+}
+
+void
vnet_crypto_register_key_handler (vlib_main_t * vm, u32 engine_index,
vnet_crypto_key_handler_t * key_handler)
{
@@ -253,10 +354,13 @@
{
vnet_crypto_op_type_t eopt, dopt;
vnet_crypto_main_t *cm = &crypto_main;
+
cm->algs[alg].name = name;
cm->opt_data[eid].alg = cm->opt_data[did].alg = alg;
- cm->opt_data[eid].active_engine_index = ~0;
- cm->opt_data[did].active_engine_index = ~0;
+ cm->opt_data[eid].active_engine_index_simple = ~0;
+ cm->opt_data[did].active_engine_index_simple = ~0;
+ cm->opt_data[eid].active_engine_index_chained = ~0;
+ cm->opt_data[did].active_engine_index_chained = ~0;
if (is_aead)
{
eopt = VNET_CRYPTO_OP_TYPE_AEAD_ENCRYPT;
@@ -282,7 +386,8 @@
cm->algs[alg].name = name;
cm->algs[alg].op_by_type[VNET_CRYPTO_OP_TYPE_HMAC] = id;
cm->opt_data[id].alg = alg;
- cm->opt_data[id].active_engine_index = ~0;
+ cm->opt_data[id].active_engine_index_simple = ~0;
+ cm->opt_data[id].active_engine_index_chained = ~0;
cm->opt_data[id].type = VNET_CRYPTO_OP_TYPE_HMAC;
hash_set_mem (cm->alg_index_by_name, name, alg);
}