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authorKlement Sekera <ksekera@cisco.com>2020-09-10 12:03:54 +0000
committerDamjan Marion <dmarion@me.com>2020-11-26 10:45:14 +0000
commitfe8371f02c90f049266b6d6b06ca613d9a09ac24 (patch)
tree4673720edf0e3c032e4b3a83403d440777e0e431 /src/vnet/ip
parent78ef61e4a081b8bad57f06d34d66ccb9f7d39848 (diff)
ip: reassembly - fix handoff for custom node
Type: fix Signed-off-by: Klement Sekera <ksekera@cisco.com> Change-Id: If484725d48190246e4da09ceaed48a68a8a253f2
Diffstat (limited to 'src/vnet/ip')
-rw-r--r--src/vnet/ip/reass/ip4_full_reass.c131
-rw-r--r--src/vnet/ip/reass/ip4_full_reass.h1
2 files changed, 111 insertions, 21 deletions
diff --git a/src/vnet/ip/reass/ip4_full_reass.c b/src/vnet/ip/reass/ip4_full_reass.c
index 4d578c5ce44..ba3a3586cbd 100644
--- a/src/vnet/ip/reass/ip4_full_reass.c
+++ b/src/vnet/ip/reass/ip4_full_reass.c
@@ -184,6 +184,7 @@ typedef struct
/** Worker handoff */
u32 fq_index;
u32 fq_feature_index;
+ u32 fq_custom_index;
// reference count for enabling/disabling feature - per interface
u32 *feature_use_refcount_per_intf;
@@ -205,6 +206,13 @@ typedef enum
typedef enum
{
+ NORMAL,
+ FEATURE,
+ CUSTOM
+} ip4_full_reass_node_type_t;
+
+typedef enum
+{
RANGE_NEW,
RANGE_SHRINK,
RANGE_DISCARD,
@@ -241,6 +249,7 @@ typedef struct
extern vlib_node_registration_t ip4_full_reass_node;
extern vlib_node_registration_t ip4_full_reass_node_feature;
+extern vlib_node_registration_t ip4_full_reass_node_custom;
static void
ip4_full_reass_trace_details (vlib_main_t * vm, u32 bi,
@@ -546,7 +555,7 @@ ip4_full_reass_finalize (vlib_main_t * vm, vlib_node_runtime_t * node,
ip4_full_reass_main_t * rm,
ip4_full_reass_per_thread_t * rt,
ip4_full_reass_t * reass, u32 * bi0,
- u32 * next0, u32 * error0, bool is_custom_app)
+ u32 * next0, u32 * error0, bool is_custom)
{
vlib_buffer_t *first_b = vlib_get_buffer (vm, reass->first_bi);
vlib_buffer_t *last_b = NULL;
@@ -730,7 +739,7 @@ ip4_full_reass_finalize (vlib_main_t * vm, vlib_node_runtime_t * node,
#endif
}
*bi0 = reass->first_bi;
- if (!is_custom_app)
+ if (!is_custom)
{
*next0 = IP4_FULL_REASS_NEXT_INPUT;
}
@@ -840,12 +849,11 @@ ip4_full_reass_update (vlib_main_t * vm, vlib_node_runtime_t * node,
ip4_full_reass_main_t * rm,
ip4_full_reass_per_thread_t * rt,
ip4_full_reass_t * reass, u32 * bi0, u32 * next0,
- u32 * error0, bool is_custom_app,
- u32 * handoff_thread_idx)
+ u32 * error0, bool is_custom, u32 * handoff_thread_idx)
{
vlib_buffer_t *fb = vlib_get_buffer (vm, *bi0);
vnet_buffer_opaque_t *fvnb = vnet_buffer (fb);
- if (is_custom_app)
+ if (is_custom)
{
// store (error_)next_index before it's overwritten
reass->next_index = fvnb->ip.reass.next_index;
@@ -1066,7 +1074,7 @@ ip4_full_reass_update (vlib_main_t * vm, vlib_node_runtime_t * node,
reass->memory_owner_thread_index != reass->sendout_thread_index;
rc =
ip4_full_reass_finalize (vm, node, rm, rt, reass, bi0, next0, error0,
- is_custom_app);
+ is_custom);
if (IP4_REASS_RC_OK == rc && handoff)
{
rc = IP4_REASS_RC_HANDOFF;
@@ -1093,8 +1101,7 @@ ip4_full_reass_update (vlib_main_t * vm, vlib_node_runtime_t * node,
always_inline uword
ip4_full_reass_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
- vlib_frame_t * frame, bool is_feature,
- bool is_custom_app)
+ vlib_frame_t * frame, ip4_full_reass_node_type_t type)
{
u32 *from = vlib_frame_vector_args (frame);
u32 n_left_from, n_left_to_next, *to_next, next_index;
@@ -1122,7 +1129,7 @@ ip4_full_reass_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
if (!ip4_get_fragment_more (ip0) && !ip4_get_fragment_offset (ip0))
{
// this is a whole packet - no fragmentation
- if (!is_custom_app)
+ if (CUSTOM != type)
{
next0 = IP4_FULL_REASS_NEXT_INPUT;
}
@@ -1177,7 +1184,7 @@ ip4_full_reass_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
u32 handoff_thread_idx;
switch (ip4_full_reass_update
(vm, node, rm, rt, reass, &bi0, &next0,
- &error0, is_custom_app, &handoff_thread_idx))
+ &error0, CUSTOM == type, &handoff_thread_idx))
{
case IP4_REASS_RC_OK:
/* nothing to do here */
@@ -1246,7 +1253,7 @@ ip4_full_reass_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
reass.owner_thread_index);
}
}
- else if (is_feature && IP4_ERROR_NONE == error0)
+ else if (FEATURE == type && IP4_ERROR_NONE == error0)
{
vnet_feature_next (&next0, b0);
}
@@ -1278,8 +1285,7 @@ VLIB_NODE_FN (ip4_full_reass_node) (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
- return ip4_full_reass_inline (vm, node, frame, false /* is_feature */ ,
- false /* is_custom_app */ );
+ return ip4_full_reass_inline (vm, node, frame, NORMAL);
}
/* *INDENT-OFF* */
@@ -1304,8 +1310,7 @@ VLIB_NODE_FN (ip4_full_reass_node_feature) (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
- return ip4_full_reass_inline (vm, node, frame, true /* is_feature */ ,
- false /* is_custom_app */ );
+ return ip4_full_reass_inline (vm, node, frame, FEATURE);
}
/* *INDENT-OFF* */
@@ -1335,7 +1340,49 @@ VNET_FEATURE_INIT (ip4_full_reass_feature, static) = {
};
/* *INDENT-ON* */
+VLIB_NODE_FN (ip4_full_reass_node_custom) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ return ip4_full_reass_inline (vm, node, frame, CUSTOM);
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (ip4_full_reass_node_custom) = {
+ .name = "ip4-full-reassembly-custom",
+ .vector_size = sizeof (u32),
+ .format_trace = format_ip4_full_reass_trace,
+ .n_errors = ARRAY_LEN (ip4_full_reass_error_strings),
+ .error_strings = ip4_full_reass_error_strings,
+ .n_next_nodes = IP4_FULL_REASS_N_NEXT,
+ .next_nodes =
+ {
+ [IP4_FULL_REASS_NEXT_INPUT] = "ip4-input",
+ [IP4_FULL_REASS_NEXT_DROP] = "ip4-drop",
+ [IP4_FULL_REASS_NEXT_HANDOFF] = "ip4-full-reass-custom-hoff",
+ },
+};
+/* *INDENT-ON* */
+
+/* *INDENT-OFF* */
+VNET_FEATURE_INIT (ip4_full_reass_custom, static) = {
+ .arc_name = "ip4-unicast",
+ .node_name = "ip4-full-reassembly-feature",
+ .runs_before = VNET_FEATURES ("ip4-lookup",
+ "ipsec4-input-feature"),
+ .runs_after = 0,
+};
+
+/* *INDENT-ON* */
+
#ifndef CLIB_MARCH_VARIANT
+uword
+ip4_full_reass_custom_register_next_node (uword node_index)
+{
+ return vlib_node_add_next (vlib_get_main (),
+ ip4_full_reass_node_custom.index, node_index);
+}
+
always_inline u32
ip4_full_reass_get_nbuckets ()
{
@@ -1476,6 +1523,8 @@ ip4_full_reass_init_function (vlib_main_t * vm)
rm->fq_index = vlib_frame_queue_main_init (ip4_full_reass_node.index, 0);
rm->fq_feature_index =
vlib_frame_queue_main_init (ip4_full_reass_node_feature.index, 0);
+ rm->fq_custom_index =
+ vlib_frame_queue_main_init (ip4_full_reass_node_custom.index, 0);
rm->feature_use_refcount_per_intf = NULL;
return error;
@@ -1729,7 +1778,8 @@ format_ip4_full_reass_handoff_trace (u8 * s, va_list * args)
always_inline uword
ip4_full_reass_handoff_node_inline (vlib_main_t * vm,
vlib_node_runtime_t * node,
- vlib_frame_t * frame, bool is_feature)
+ vlib_frame_t * frame,
+ ip4_full_reass_node_type_t type)
{
ip4_full_reass_main_t *rm = &ip4_full_reass_main;
@@ -1745,7 +1795,21 @@ ip4_full_reass_handoff_node_inline (vlib_main_t * vm,
b = bufs;
ti = thread_indices;
- fq_index = (is_feature) ? rm->fq_feature_index : rm->fq_index;
+ switch (type)
+ {
+ case NORMAL:
+ fq_index = rm->fq_index;
+ break;
+ case FEATURE:
+ fq_index = rm->fq_feature_index;
+ break;
+ case CUSTOM:
+ fq_index = rm->fq_custom_index;
+ break;
+ default:
+ clib_warning ("Unexpected `type' (%d)!", type);
+ ASSERT (0);
+ }
while (n_left_from > 0)
{
@@ -1779,8 +1843,7 @@ VLIB_NODE_FN (ip4_full_reass_handoff_node) (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
- return ip4_full_reass_handoff_node_inline (vm, node, frame,
- false /* is_feature */ );
+ return ip4_full_reass_handoff_node_inline (vm, node, frame, NORMAL);
}
@@ -1807,8 +1870,7 @@ VLIB_NODE_FN (ip4_full_reass_feature_handoff_node) (vlib_main_t * vm,
node,
vlib_frame_t * frame)
{
- return ip4_full_reass_handoff_node_inline (vm, node, frame,
- true /* is_feature */ );
+ return ip4_full_reass_handoff_node_inline (vm, node, frame, FEATURE);
}
/* *INDENT-ON* */
@@ -1829,6 +1891,33 @@ VLIB_REGISTER_NODE (ip4_full_reass_feature_handoff_node) = {
};
/* *INDENT-ON* */
+/* *INDENT-OFF* */
+VLIB_NODE_FN (ip4_full_reass_custom_handoff_node) (vlib_main_t * vm,
+ vlib_node_runtime_t *
+ node,
+ vlib_frame_t * frame)
+{
+ return ip4_full_reass_handoff_node_inline (vm, node, frame, CUSTOM);
+}
+/* *INDENT-ON* */
+
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (ip4_full_reass_custom_handoff_node) = {
+ .name = "ip4-full-reass-custom-hoff",
+ .vector_size = sizeof (u32),
+ .n_errors = ARRAY_LEN(ip4_full_reass_handoff_error_strings),
+ .error_strings = ip4_full_reass_handoff_error_strings,
+ .format_trace = format_ip4_full_reass_handoff_trace,
+
+ .n_next_nodes = 1,
+
+ .next_nodes = {
+ [0] = "error-drop",
+ },
+};
+/* *INDENT-ON* */
+
#ifndef CLIB_MARCH_VARIANT
int
ip4_full_reass_enable_disable_with_refcnt (u32 sw_if_index, int is_enable)
diff --git a/src/vnet/ip/reass/ip4_full_reass.h b/src/vnet/ip/reass/ip4_full_reass.h
index 8c82989086b..000c80c5906 100644
--- a/src/vnet/ip/reass/ip4_full_reass.h
+++ b/src/vnet/ip/reass/ip4_full_reass.h
@@ -46,6 +46,7 @@ vnet_api_error_t ip4_full_reass_enable_disable (u32 sw_if_index,
int ip4_full_reass_enable_disable_with_refcnt (u32 sw_if_index,
int is_enable);
+uword ip4_full_reass_custom_register_next_node (uword node_index);
#endif /* __included_ip4_full_reass_h__ */
/*