static void
ip6_full_reass_add_trace (vlib_main_t * vm, vlib_node_runtime_t * node,
- ip6_full_reass_main_t * rm,
ip6_full_reass_t * reass, u32 bi,
ip6_frag_hdr_t * ip6_frag_header,
ip6_full_reass_trace_operation_e action,
vlib_buffer_t *b = vlib_get_buffer (vm, bi);
vnet_buffer_opaque_t *vnb = vnet_buffer (b);
bool is_after_handoff = false;
+ if (pool_is_free_index
+ (vm->trace_main.trace_buffer_pool, vlib_buffer_get_trace_index (b)))
+ {
+ // this buffer's trace is gone
+ b->flags &= ~VLIB_BUFFER_IS_TRACED;
+ return;
+ }
if (vlib_buffer_get_trace_thread (b) != vm->thread_index)
{
is_after_handoff = true;
}
always_inline void
-ip6_full_reass_drop_all (vlib_main_t * vm, vlib_node_runtime_t * node,
- ip6_full_reass_main_t * rm, ip6_full_reass_t * reass)
+ip6_full_reass_drop_all (vlib_main_t *vm, vlib_node_runtime_t *node,
+ ip6_full_reass_t *reass)
{
u32 range_bi = reass->first_bi;
vlib_buffer_t *range_b;
always_inline void
ip6_full_reass_on_timeout (vlib_main_t * vm, vlib_node_runtime_t * node,
- ip6_full_reass_main_t * rm,
ip6_full_reass_t * reass, u32 * icmp_bi)
{
if (~0 == reass->first_bi)
*icmp_bi = reass->first_bi;
if (PREDICT_FALSE (b->flags & VLIB_BUFFER_IS_TRACED))
{
- ip6_full_reass_add_trace (vm, node, rm, reass, reass->first_bi,
- NULL, ICMP_ERROR_RT_EXCEEDED, ~0);
+ ip6_full_reass_add_trace (vm, node, reass, reass->first_bi, NULL,
+ ICMP_ERROR_RT_EXCEEDED, ~0);
}
// fragment with offset zero received - send icmp message back
if (b->flags & VLIB_BUFFER_NEXT_PRESENT)
0);
}
}
- ip6_full_reass_drop_all (vm, node, rm, reass);
+ ip6_full_reass_drop_all (vm, node, reass);
}
always_inline ip6_full_reass_t *
if (now > reass->last_heard + rm->timeout)
{
- ip6_full_reass_on_timeout (vm, node, rm, reass, icmp_bi);
+ ip6_full_reass_on_timeout (vm, node, reass, icmp_bi);
ip6_full_reass_free (rm, rt, reass);
reass = NULL;
}
first_b->flags &= ~VLIB_BUFFER_EXT_HDR_VALID;
if (PREDICT_FALSE (first_b->flags & VLIB_BUFFER_IS_TRACED))
{
- ip6_full_reass_add_trace (vm, node, rm, reass, reass->first_bi, NULL,
+ ip6_full_reass_add_trace (vm, node, reass, reass->first_bi, NULL,
FINALIZE, ~0);
#if 0
// following code does a hexdump of packet fragments to stdout ...
always_inline void
ip6_full_reass_insert_range_in_chain (vlib_main_t * vm,
- ip6_full_reass_main_t * rm,
- ip6_full_reass_per_thread_t * rt,
ip6_full_reass_t * reass,
u32 prev_range_bi, u32 new_next_bi)
{
if (~0 == reass->first_bi)
{
// starting a new reassembly
- ip6_full_reass_insert_range_in_chain (vm, rm, rt, reass, prev_range_bi,
- *bi0);
+ ip6_full_reass_insert_range_in_chain (vm, reass, prev_range_bi, *bi0);
reass->min_fragment_length = clib_net_to_host_u16 (fip->payload_length);
consumed = 1;
reass->fragments_n = 1;
~0 == candidate_range_bi)
{
// special case - this fragment falls beyond all known ranges
- ip6_full_reass_insert_range_in_chain (vm, rm, rt, reass,
- prev_range_bi, *bi0);
+ ip6_full_reass_insert_range_in_chain (vm, reass, prev_range_bi,
+ *bi0);
consumed = 1;
break;
}
if (fragment_last < candidate_vnb->ip.reass.range_first)
{
// this fragment ends before candidate range without any overlap
- ip6_full_reass_insert_range_in_chain (vm, rm, rt, reass,
- prev_range_bi, *bi0);
+ ip6_full_reass_insert_range_in_chain (vm, reass, prev_range_bi,
+ *bi0);
consumed = 1;
}
else if (fragment_first == candidate_vnb->ip.reass.range_first &&
// overlapping fragment - not allowed by RFC 8200
if (PREDICT_FALSE (fb->flags & VLIB_BUFFER_IS_TRACED))
{
- ip6_full_reass_add_trace (vm, node, rm, reass, *bi0, frag_hdr,
+ ip6_full_reass_add_trace (vm, node, reass, *bi0, frag_hdr,
RANGE_OVERLAP, ~0);
}
- ip6_full_reass_drop_all (vm, node, rm, reass);
+ ip6_full_reass_drop_all (vm, node, reass);
ip6_full_reass_free (rm, rt, reass);
*next0 = IP6_FULL_REASSEMBLY_NEXT_DROP;
*error0 = IP6_ERROR_REASS_OVERLAPPING_FRAGMENT;
{
if (PREDICT_FALSE (fb->flags & VLIB_BUFFER_IS_TRACED))
{
- ip6_full_reass_add_trace (vm, node, rm, reass, *bi0, frag_hdr,
- RANGE_NEW, ~0);
+ ip6_full_reass_add_trace (vm, node, reass, *bi0, frag_hdr, RANGE_NEW,
+ ~0);
}
}
if (~0 != reass->last_packet_octet &&
always_inline bool
ip6_full_reass_verify_fragment_multiple_8 (vlib_main_t * vm,
- vlib_node_runtime_t * node,
vlib_buffer_t * b,
ip6_frag_hdr_t * frag_hdr)
{
always_inline bool
ip6_full_reass_verify_packet_size_lt_64k (vlib_main_t * vm,
- vlib_node_runtime_t * node,
vlib_buffer_t * b,
ip6_frag_hdr_t * frag_hdr)
{
goto skip_reass;
}
}
- if (!ip6_full_reass_verify_fragment_multiple_8
- (vm, node, b0, frag_hdr)
- || !ip6_full_reass_verify_packet_size_lt_64k (vm, node, b0,
- frag_hdr))
+ if (!ip6_full_reass_verify_fragment_multiple_8 (vm, b0, frag_hdr) ||
+ !ip6_full_reass_verify_packet_size_lt_64k (vm, b0, frag_hdr))
{
next0 = IP6_FULL_REASSEMBLY_NEXT_ICMP_ERROR;
goto skip_reass;
else if (reass)
{
u32 handoff_thread_idx;
+ u32 counter = ~0;
switch (ip6_full_reass_update
(vm, node, rm, rt, reass, &bi0, &next0, &error0,
frag_hdr, is_custom_app, &handoff_thread_idx))
handoff_thread_idx;
break;
case IP6_FULL_REASS_RC_TOO_MANY_FRAGMENTS:
- vlib_node_increment_counter (vm, node->node_index,
- IP6_ERROR_REASS_FRAGMENT_CHAIN_TOO_LONG,
- 1);
- ip6_full_reass_drop_all (vm, node, rm, reass);
- ip6_full_reass_free (rm, rt, reass);
- goto next_packet;
+ counter = IP6_ERROR_REASS_FRAGMENT_CHAIN_TOO_LONG;
break;
case IP6_FULL_REASS_RC_NO_BUF:
- vlib_node_increment_counter (vm, node->node_index,
- IP6_ERROR_REASS_NO_BUF, 1);
- ip6_full_reass_drop_all (vm, node, rm, reass);
- ip6_full_reass_free (rm, rt, reass);
- goto next_packet;
+ counter = IP6_ERROR_REASS_NO_BUF;
break;
case IP6_FULL_REASS_RC_INTERNAL_ERROR:
- vlib_node_increment_counter (vm, node->node_index,
- IP6_ERROR_REASS_INTERNAL_ERROR,
+ counter = IP6_ERROR_REASS_INTERNAL_ERROR;
+ break;
+ }
+ if (~0 != counter)
+ {
+ vlib_node_increment_counter (vm, node->node_index, counter,
1);
- ip6_full_reass_drop_all (vm, node, rm, reass);
+ ip6_full_reass_drop_all (vm, node, reass);
ip6_full_reass_free (rm, rt, reass);
goto next_packet;
- break;
}
}
else
{
if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
{
- ip6_full_reass_add_trace (vm, node, rm, NULL, bi0,
- frag_hdr, HANDOFF,
- vnet_buffer (b0)->ip.
- reass.owner_thread_index);
+ ip6_full_reass_add_trace (
+ vm, node, NULL, bi0, frag_hdr, HANDOFF,
+ vnet_buffer (b0)->ip.reass.owner_thread_index);
}
}
else if (is_feature && IP6_ERROR_NONE == error0)
false /* is_custom_app */ );
}
-/* *INDENT-OFF* */
VLIB_REGISTER_NODE (ip6_full_reass_node) = {
.name = "ip6-full-reassembly",
.vector_size = sizeof (u32),
[IP6_FULL_REASSEMBLY_NEXT_HANDOFF] = "ip6-full-reassembly-handoff",
},
};
-/* *INDENT-ON* */
VLIB_NODE_FN (ip6_full_reass_node_feature) (vlib_main_t * vm,
vlib_node_runtime_t * node,
false /* is_custom_app */ );
}
-/* *INDENT-OFF* */
VLIB_REGISTER_NODE (ip6_full_reass_node_feature) = {
.name = "ip6-full-reassembly-feature",
.vector_size = sizeof (u32),
[IP6_FULL_REASSEMBLY_NEXT_HANDOFF] = "ip6-full-reass-feature-hoff",
},
};
-/* *INDENT-ON* */
-/* *INDENT-OFF* */
VNET_FEATURE_INIT (ip6_full_reassembly_feature, static) = {
.arc_name = "ip6-unicast",
.node_name = "ip6-full-reassembly-feature",
"ipsec6-input-feature"),
.runs_after = 0,
};
-/* *INDENT-ON* */
#ifndef CLIB_MARCH_VARIANT
static u32
#endif /* CLIB_MARCH_VARIANT */
static uword
-ip6_full_reass_walk_expired (vlib_main_t * vm,
- vlib_node_runtime_t * node, vlib_frame_t * f)
+ip6_full_reass_walk_expired (vlib_main_t *vm, vlib_node_runtime_t *node,
+ CLIB_UNUSED (vlib_frame_t *f))
{
ip6_full_reass_main_t *rm = &ip6_full_reass_main;
uword event_type, *event_data = 0;
switch (event_type)
{
- case ~0: /* no events => timeout */
- /* nothing to do here */
- break;
+ case ~0:
+ /* no events => timeout */
+ /* fallthrough */
case IP6_EVENT_CONFIG_CHANGED:
+ /* nothing to do here */
break;
default:
clib_warning ("BUG: event type 0x%wx", event_type);
clib_spinlock_lock (&rt->lock);
vec_reset_length (pool_indexes_to_free);
- /* *INDENT-OFF* */
pool_foreach_index (index, rt->pool) {
reass = pool_elt_at_index (rt->pool, index);
if (now > reass->last_heard + rm->timeout)
vec_add1 (pool_indexes_to_free, index);
}
}
- /* *INDENT-ON* */
int *i;
- /* *INDENT-OFF* */
vec_foreach (i, pool_indexes_to_free)
{
ip6_full_reass_t *reass = pool_elt_at_index (rt->pool, i[0]);
u32 icmp_bi = ~0;
- ip6_full_reass_on_timeout (vm, node, rm, reass, &icmp_bi);
- if (~0 != icmp_bi)
- vec_add1 (vec_icmp_bi, icmp_bi);
+ ip6_full_reass_on_timeout (vm, node, reass, &icmp_bi);
+ if (~0 != icmp_bi)
+ vec_add1 (vec_icmp_bi, icmp_bi);
- ip6_full_reass_free (rm, rt, reass);
- }
- /* *INDENT-ON* */
+ ip6_full_reass_free (rm, rt, reass);
+ }
clib_spinlock_unlock (&rt->lock);
}
return 0;
}
-/* *INDENT-OFF* */
VLIB_REGISTER_NODE (ip6_full_reass_expire_node) = {
.function = ip6_full_reass_walk_expired,
.format_trace = format_ip6_full_reass_trace,
.error_strings = ip6_full_reassembly_error_strings,
};
-/* *INDENT-ON* */
static u8 *
format_ip6_full_reass_key (u8 * s, va_list * args)
clib_spinlock_lock (&rt->lock);
if (details)
{
- /* *INDENT-OFF* */
pool_foreach (reass, rt->pool) {
vlib_cli_output (vm, "%U", format_ip6_full_reass, vm, reass);
}
- /* *INDENT-ON* */
}
sum_reass_n += rt->reass_n;
clib_spinlock_unlock (&rt->lock);
vlib_cli_output (vm,
"Maximum configured concurrent full IP6 reassemblies per worker-thread: %lu\n",
(long unsigned) rm->max_reass_n);
+ vlib_cli_output (vm,
+ "Maximum configured amount of fragments "
+ "per full IP6 reassembly: %lu\n",
+ (long unsigned) rm->max_reass_len);
vlib_cli_output (vm,
"Maximum configured full IP6 reassembly timeout: %lums\n",
(long unsigned) rm->timeout_ms);
return 0;
}
-/* *INDENT-OFF* */
VLIB_CLI_COMMAND (show_ip6_full_reassembly_cmd, static) = {
.path = "show ip6-full-reassembly",
.short_help = "show ip6-full-reassembly [details]",
.function = show_ip6_full_reass,
};
-/* *INDENT-ON* */
#ifndef CLIB_MARCH_VARIANT
vnet_api_error_t
ti += 1;
b += 1;
}
- n_enq =
- vlib_buffer_enqueue_to_thread (vm, fq_index, from, thread_indices,
- frame->n_vectors, 1);
+ n_enq = vlib_buffer_enqueue_to_thread (vm, node, fq_index, from,
+ thread_indices, frame->n_vectors, 1);
if (n_enq < frame->n_vectors)
vlib_node_increment_counter (vm, node->node_index,
false /* is_feature */ );
}
-/* *INDENT-OFF* */
VLIB_REGISTER_NODE (ip6_full_reassembly_handoff_node) = {
.name = "ip6-full-reassembly-handoff",
.vector_size = sizeof (u32),
}
-/* *INDENT-OFF* */
VLIB_REGISTER_NODE (ip6_full_reassembly_feature_handoff_node) = {
.name = "ip6-full-reass-feature-hoff",
.vector_size = sizeof (u32),
[0] = "error-drop",
},
};
-/* *INDENT-ON* */
#ifndef CLIB_MARCH_VARIANT
int
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