/**
* @file
- * @brief IPv4 Reassembly.
+ * @brief IPv4 Full Reassembly.
*
- * This file contains the source code for IPv4 reassembly.
+ * This file contains the source code for IPv4 full reassembly.
*/
#include <vppinfra/vec.h>
#include <vnet/vnet.h>
#include <vnet/ip/ip.h>
+#include <vppinfra/fifo.h>
#include <vppinfra/bihash_16_8.h>
-#include <vnet/ip/ip4_reassembly.h>
+#include <vnet/ip/reass/ip4_full_reass.h>
#include <stddef.h>
#define MSEC_PER_SEC 1000
IP4_REASS_RC_INTERNAL_ERROR,
IP4_REASS_RC_NO_BUF,
IP4_REASS_RC_HANDOFF,
-} ip4_reass_rc_t;
+} ip4_full_reass_rc_t;
typedef struct
{
};
u64 as_u64[2];
};
-} ip4_reass_key_t;
+} ip4_full_reass_key_t;
typedef union
{
u32 memory_owner_thread_index;
};
u64 as_u64;
-} ip4_reass_val_t;
+} ip4_full_reass_val_t;
typedef union
{
struct
{
- ip4_reass_key_t k;
- ip4_reass_val_t v;
+ ip4_full_reass_key_t k;
+ ip4_full_reass_val_t v;
};
clib_bihash_kv_16_8_t kv;
-} ip4_reass_kv_t;
+} ip4_full_reass_kv_t;
always_inline u32
-ip4_reass_buffer_get_data_offset (vlib_buffer_t * b)
+ip4_full_reass_buffer_get_data_offset (vlib_buffer_t * b)
{
vnet_buffer_opaque_t *vnb = vnet_buffer (b);
return vnb->ip.reass.range_first - vnb->ip.reass.fragment_first;
}
always_inline u16
-ip4_reass_buffer_get_data_len (vlib_buffer_t * b)
+ip4_full_reass_buffer_get_data_len (vlib_buffer_t * b)
{
vnet_buffer_opaque_t *vnb = vnet_buffer (b);
return clib_min (vnb->ip.reass.range_last, vnb->ip.reass.fragment_last) -
- (vnb->ip.reass.fragment_first + ip4_reass_buffer_get_data_offset (b)) + 1;
+ (vnb->ip.reass.fragment_first +
+ ip4_full_reass_buffer_get_data_offset (b)) + 1;
}
typedef struct
{
// hash table key
- ip4_reass_key_t key;
+ ip4_full_reass_key_t key;
// time when last packet was received
f64 last_heard;
// internal id of this reassembly
// thread which received fragment with offset 0 and which sends out the
// completed reassembly
u32 sendout_thread_index;
-} ip4_reass_t;
+} ip4_full_reass_t;
typedef struct
{
- // pool of reassembly contexts
- ip4_reass_t *pool;
+ ip4_full_reass_t *pool;
u32 reass_n;
u32 id_counter;
clib_spinlock_t lock;
-} ip4_reass_per_thread_t;
+} ip4_full_reass_per_thread_t;
typedef struct
{
// IPv4 runtime
clib_bihash_16_8_t hash;
// per-thread data
- ip4_reass_per_thread_t *per_thread_data;
+ ip4_full_reass_per_thread_t *per_thread_data;
// convenience
vlib_main_t *vlib_main;
// node index of ip4-drop node
u32 ip4_drop_idx;
- u32 ip4_reass_expire_node_idx;
+ u32 ip4_full_reass_expire_node_idx;
/** Worker handoff */
u32 fq_index;
u32 fq_feature_index;
-} ip4_reass_main_t;
-extern ip4_reass_main_t ip4_reass_main;
+} ip4_full_reass_main_t;
+
+extern ip4_full_reass_main_t ip4_full_reass_main;
#ifndef CLIB_MARCH_VARIANT
-ip4_reass_main_t ip4_reass_main;
+ip4_full_reass_main_t ip4_full_reass_main;
#endif /* CLIB_MARCH_VARIANT */
typedef enum
{
- IP4_REASSEMBLY_NEXT_INPUT,
- IP4_REASSEMBLY_NEXT_DROP,
- IP4_REASSEMBLY_NEXT_HANDOFF,
- IP4_REASSEMBLY_N_NEXT,
-} ip4_reass_next_t;
+ IP4_FULL_REASS_NEXT_INPUT,
+ IP4_FULL_REASS_NEXT_DROP,
+ IP4_FULL_REASS_NEXT_HANDOFF,
+ IP4_FULL_REASS_N_NEXT,
+} ip4_full_reass_next_t;
typedef enum
{
RANGE_OVERLAP,
FINALIZE,
HANDOFF,
-} ip4_reass_trace_operation_e;
+} ip4_full_reass_trace_operation_e;
typedef struct
{
i32 data_offset;
u32 data_len;
u32 first_bi;
-} ip4_reass_range_trace_t;
+} ip4_full_reass_range_trace_t;
typedef struct
{
- ip4_reass_trace_operation_e action;
+ ip4_full_reass_trace_operation_e action;
u32 reass_id;
- ip4_reass_range_trace_t trace_range;
+ ip4_full_reass_range_trace_t trace_range;
u32 size_diff;
u32 op_id;
u32 thread_id;
u32 fragment_first;
u32 fragment_last;
u32 total_data_len;
-} ip4_reass_trace_t;
+} ip4_full_reass_trace_t;
-extern vlib_node_registration_t ip4_reass_node;
-extern vlib_node_registration_t ip4_reass_node_feature;
+extern vlib_node_registration_t ip4_full_reass_node;
+extern vlib_node_registration_t ip4_full_reass_node_feature;
static void
-ip4_reass_trace_details (vlib_main_t * vm, u32 bi,
- ip4_reass_range_trace_t * trace)
+ip4_full_reass_trace_details (vlib_main_t * vm, u32 bi,
+ ip4_full_reass_range_trace_t * trace)
{
vlib_buffer_t *b = vlib_get_buffer (vm, bi);
vnet_buffer_opaque_t *vnb = vnet_buffer (b);
trace->range_first = vnb->ip.reass.range_first;
trace->range_last = vnb->ip.reass.range_last;
- trace->data_offset = ip4_reass_buffer_get_data_offset (b);
- trace->data_len = ip4_reass_buffer_get_data_len (b);
+ trace->data_offset = ip4_full_reass_buffer_get_data_offset (b);
+ trace->data_len = ip4_full_reass_buffer_get_data_len (b);
trace->range_bi = bi;
}
static u8 *
-format_ip4_reass_range_trace (u8 * s, va_list * args)
+format_ip4_full_reass_range_trace (u8 * s, va_list * args)
{
- ip4_reass_range_trace_t *trace = va_arg (*args, ip4_reass_range_trace_t *);
- s = format (s, "range: [%u, %u], off %d, len %u, bi %u", trace->range_first,
- trace->range_last, trace->data_offset, trace->data_len,
- trace->range_bi);
+ ip4_full_reass_range_trace_t *trace =
+ va_arg (*args, ip4_full_reass_range_trace_t *);
+ s =
+ format (s, "range: [%u, %u], off %d, len %u, bi %u", trace->range_first,
+ trace->range_last, trace->data_offset, trace->data_len,
+ trace->range_bi);
return s;
}
static u8 *
-format_ip4_reass_trace (u8 * s, va_list * args)
+format_ip4_full_reass_trace (u8 * s, va_list * args)
{
CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
- ip4_reass_trace_t *t = va_arg (*args, ip4_reass_trace_t *);
+ ip4_full_reass_trace_t *t = va_arg (*args, ip4_full_reass_trace_t *);
u32 indent = 0;
if (~0 != t->reass_id)
{
{
case RANGE_SHRINK:
s = format (s, "\n%Ushrink %U by %u", format_white_space, indent,
- format_ip4_reass_range_trace, &t->trace_range,
+ format_ip4_full_reass_range_trace, &t->trace_range,
t->size_diff);
break;
case RANGE_DISCARD:
s = format (s, "\n%Udiscard %U", format_white_space, indent,
- format_ip4_reass_range_trace, &t->trace_range);
+ format_ip4_full_reass_range_trace, &t->trace_range);
break;
case RANGE_NEW:
s = format (s, "\n%Unew %U", format_white_space, indent,
- format_ip4_reass_range_trace, &t->trace_range);
+ format_ip4_full_reass_range_trace, &t->trace_range);
break;
case RANGE_OVERLAP:
s = format (s, "\n%Uoverlapping/ignored %U", format_white_space, indent,
- format_ip4_reass_range_trace, &t->trace_range);
+ format_ip4_full_reass_range_trace, &t->trace_range);
break;
case FINALIZE:
s = format (s, "\n%Ufinalize reassembly", format_white_space, indent);
}
static void
-ip4_reass_add_trace (vlib_main_t * vm, vlib_node_runtime_t * node,
- ip4_reass_main_t * rm, u32 reass_id, u32 op_id,
- u32 bi, u32 first_bi, u32 data_len,
- ip4_reass_trace_operation_e action, u32 size_diff,
- u32 thread_id_to)
+ip4_full_reass_add_trace (vlib_main_t * vm, vlib_node_runtime_t * node,
+ ip4_full_reass_main_t * rm,
+ ip4_full_reass_t * reass, u32 bi,
+ ip4_full_reass_trace_operation_e action,
+ u32 size_diff, u32 thread_id_to)
{
vlib_buffer_t *b = vlib_get_buffer (vm, bi);
vnet_buffer_opaque_t *vnb = vnet_buffer (b);
- ip4_reass_trace_t *t = vlib_add_trace (vm, node, b, sizeof (t[0]));
- t->reass_id = reass_id;
+ ip4_full_reass_trace_t *t = vlib_add_trace (vm, node, b, sizeof (t[0]));
+ if (reass)
+ {
+ t->reass_id = reass->id;
+ t->op_id = reass->trace_op_counter;
+ t->trace_range.first_bi = reass->first_bi;
+ t->total_data_len = reass->data_len;
+ ++reass->trace_op_counter;
+ }
+ else
+ {
+ t->reass_id = ~0;
+ t->op_id = 0;
+ t->trace_range.first_bi = 0;
+ t->total_data_len = 0;
+ }
t->action = action;
- ip4_reass_trace_details (vm, bi, &t->trace_range);
+ ip4_full_reass_trace_details (vm, bi, &t->trace_range);
t->size_diff = size_diff;
- t->op_id = op_id;
t->thread_id = vm->thread_index;
t->thread_id_to = thread_id_to;
t->fragment_first = vnb->ip.reass.fragment_first;
t->fragment_last = vnb->ip.reass.fragment_last;
- t->trace_range.first_bi = first_bi;
- t->total_data_len = data_len;
#if 0
static u8 *s = NULL;
- s = format (s, "%U", format_ip4_reass_trace, NULL, NULL, t);
+ s = format (s, "%U", format_ip4_full_reass_trace, NULL, NULL, t);
printf ("%.*s\n", vec_len (s), s);
fflush (stdout);
vec_reset_length (s);
}
always_inline void
-ip4_reass_free_ctx (ip4_reass_per_thread_t * rt, ip4_reass_t * reass)
+ip4_full_reass_free_ctx (ip4_full_reass_per_thread_t * rt,
+ ip4_full_reass_t * reass)
{
pool_put (rt->pool, reass);
--rt->reass_n;
}
always_inline void
-ip4_reass_free (vlib_main_t * vm, ip4_reass_main_t * rm,
- ip4_reass_per_thread_t * rt, ip4_reass_t * reass)
+ip4_full_reass_free (ip4_full_reass_main_t * rm,
+ ip4_full_reass_per_thread_t * rt,
+ ip4_full_reass_t * reass)
{
clib_bihash_kv_16_8_t kv;
kv.key[0] = reass->key.as_u64[0];
kv.key[1] = reass->key.as_u64[1];
clib_bihash_add_del_16_8 (&rm->hash, &kv, 0);
- return ip4_reass_free_ctx (rt, reass);
+ return ip4_full_reass_free_ctx (rt, reass);
}
always_inline void
-ip4_reass_drop_all (vlib_main_t * vm, vlib_node_runtime_t * node,
- ip4_reass_main_t * rm, ip4_reass_t * reass)
+ip4_full_reass_drop_all (vlib_main_t * vm, vlib_node_runtime_t * node,
+ ip4_full_reass_main_t * rm, ip4_full_reass_t * reass)
{
u32 range_bi = reass->first_bi;
vlib_buffer_t *range_b;
}
}
-static ip4_reass_t *
-ip4_reass_find_or_create (vlib_main_t * vm, vlib_node_runtime_t * node,
- ip4_reass_main_t * rm, ip4_reass_per_thread_t * rt,
- ip4_reass_kv_t * kv, u8 * do_handoff)
+always_inline void
+ip4_full_reass_init (ip4_full_reass_t * reass)
{
- ip4_reass_t *reass;
+ reass->first_bi = ~0;
+ reass->last_packet_octet = ~0;
+ reass->data_len = 0;
+ reass->next_index = ~0;
+ reass->error_next_index = ~0;
+}
+
+always_inline ip4_full_reass_t *
+ip4_full_reass_find_or_create (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_kv_t * kv, u8 * do_handoff)
+{
+ ip4_full_reass_t *reass;
f64 now;
again:
if (now > reass->last_heard + rm->timeout)
{
- ip4_reass_drop_all (vm, node, rm, reass);
- ip4_reass_free (vm, rm, rt, reass);
+ ip4_full_reass_drop_all (vm, node, rm, reass);
+ ip4_full_reass_free (rm, rt, reass);
reass = NULL;
}
}
reass->id = ((u64) vm->thread_index * 1000000000) + rt->id_counter;
reass->memory_owner_thread_index = vm->thread_index;
++rt->id_counter;
- reass->first_bi = ~0;
- reass->last_packet_octet = ~0;
- reass->data_len = 0;
- reass->next_index = ~0;
- reass->error_next_index = ~0;
+ ip4_full_reass_init (reass);
++rt->reass_n;
}
clib_bihash_add_del_16_8 (&rm->hash, (clib_bihash_kv_16_8_t *) kv, 2);
if (rv)
{
- ip4_reass_free_ctx (rt, reass);
+ ip4_full_reass_free_ctx (rt, reass);
reass = NULL;
// if other worker created a context already work with the other copy
if (-2 == rv)
return reass;
}
-always_inline ip4_reass_rc_t
-ip4_reass_finalize (vlib_main_t * vm, vlib_node_runtime_t * node,
- ip4_reass_main_t * rm, ip4_reass_per_thread_t * rt,
- ip4_reass_t * reass, u32 * bi0, u32 * next0, u32 * error0,
- bool is_custom_app)
+always_inline ip4_full_reass_rc_t
+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)
{
vlib_buffer_t *first_b = vlib_get_buffer (vm, reass->first_bi);
vlib_buffer_t *last_b = NULL;
return IP4_REASS_RC_INTERNAL_ERROR;
}
- u32 data_len = ip4_reass_buffer_get_data_len (tmp);
+ u32 data_len = ip4_full_reass_buffer_get_data_len (tmp);
u32 trim_front =
- ip4_header_bytes (ip) + ip4_reass_buffer_get_data_offset (tmp);
+ ip4_header_bytes (ip) + ip4_full_reass_buffer_get_data_offset (tmp);
u32 trim_end =
vlib_buffer_length_in_chain (vm, tmp) - trim_front - data_len;
if (tmp_bi == reass->first_bi)
{
/* first buffer - keep ip4 header */
- if (0 != ip4_reass_buffer_get_data_offset (tmp))
+ if (0 != ip4_full_reass_buffer_get_data_offset (tmp))
{
return IP4_REASS_RC_INTERNAL_ERROR;
}
first_b->flags &= ~VLIB_BUFFER_EXT_HDR_VALID;
if (PREDICT_FALSE (first_b->flags & VLIB_BUFFER_IS_TRACED))
{
- ip4_reass_add_trace (vm, node, rm, reass->id, reass->trace_op_counter,
- reass->first_bi, reass->first_bi, reass->data_len,
- FINALIZE, 0, ~0);
- ++reass->trace_op_counter;
+ ip4_full_reass_add_trace (vm, node, rm, reass, reass->first_bi,
+ FINALIZE, 0, ~0);
#if 0
// following code does a hexdump of packet fragments to stdout ...
do
*bi0 = reass->first_bi;
if (!is_custom_app)
{
- *next0 = IP4_REASSEMBLY_NEXT_INPUT;
+ *next0 = IP4_FULL_REASS_NEXT_INPUT;
}
else
{
}
vnet_buffer (first_b)->ip.reass.estimated_mtu = reass->min_fragment_length;
*error0 = IP4_ERROR_NONE;
- ip4_reass_free (vm, rm, rt, reass);
+ ip4_full_reass_free (rm, rt, reass);
reass = NULL;
return IP4_REASS_RC_OK;
}
-always_inline ip4_reass_rc_t
-ip4_reass_insert_range_in_chain (vlib_main_t * vm,
- ip4_reass_main_t * rm,
- ip4_reass_per_thread_t * rt,
- ip4_reass_t * reass,
- u32 prev_range_bi, u32 new_next_bi)
+always_inline ip4_full_reass_rc_t
+ip4_full_reass_insert_range_in_chain (vlib_main_t * vm,
+ ip4_full_reass_main_t * rm,
+ ip4_full_reass_per_thread_t * rt,
+ ip4_full_reass_t * reass,
+ u32 prev_range_bi, u32 new_next_bi)
{
vlib_buffer_t *new_next_b = vlib_get_buffer (vm, new_next_bi);
vnet_buffer_opaque_t *new_next_vnb = vnet_buffer (new_next_b);
{
return IP4_REASS_RC_INTERNAL_ERROR;
}
- reass->data_len += ip4_reass_buffer_get_data_len (new_next_b);
+ reass->data_len += ip4_full_reass_buffer_get_data_len (new_next_b);
return IP4_REASS_RC_OK;
}
-always_inline ip4_reass_rc_t
-ip4_reass_remove_range_from_chain (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- ip4_reass_main_t * rm,
- ip4_reass_t * reass, u32 prev_range_bi,
- u32 discard_bi)
+always_inline ip4_full_reass_rc_t
+ip4_full_reass_remove_range_from_chain (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ ip4_full_reass_main_t * rm,
+ ip4_full_reass_t * reass,
+ u32 prev_range_bi, u32 discard_bi)
{
vlib_buffer_t *discard_b = vlib_get_buffer (vm, discard_bi);
vnet_buffer_opaque_t *discard_vnb = vnet_buffer (discard_b);
{
return IP4_REASS_RC_INTERNAL_ERROR;
}
- reass->data_len -= ip4_reass_buffer_get_data_len (discard_b);
+ reass->data_len -= ip4_full_reass_buffer_get_data_len (discard_b);
while (1)
{
u32 to_be_freed_bi = discard_bi;
if (PREDICT_FALSE (discard_b->flags & VLIB_BUFFER_IS_TRACED))
{
- ip4_reass_add_trace (vm, node, rm, reass->id,
- reass->trace_op_counter, discard_bi,
- reass->first_bi, reass->data_len,
- RANGE_DISCARD, 0, ~0);
- ++reass->trace_op_counter;
+ ip4_full_reass_add_trace (vm, node, rm, reass, discard_bi,
+ RANGE_DISCARD, 0, ~0);
}
if (discard_b->flags & VLIB_BUFFER_NEXT_PRESENT)
{
return IP4_REASS_RC_OK;
}
-always_inline ip4_reass_rc_t
-ip4_reass_update (vlib_main_t * vm, vlib_node_runtime_t * node,
- ip4_reass_main_t * rm, ip4_reass_per_thread_t * rt,
- ip4_reass_t * reass, u32 * bi0, u32 * next0, u32 * error0,
- bool is_custom_app, u32 * handoff_thread_idx)
+always_inline ip4_full_reass_rc_t
+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)
{
- ip4_reass_rc_t rc = IP4_REASS_RC_OK;
- int consumed = 0;
vlib_buffer_t *fb = vlib_get_buffer (vm, *bi0);
- ip4_header_t *fip = vlib_buffer_get_current (fb);
vnet_buffer_opaque_t *fvnb = vnet_buffer (fb);
if (is_custom_app)
{
reass->next_index = fvnb->ip.reass.next_index;
reass->error_next_index = fvnb->ip.reass.error_next_index;
}
+ ip4_full_reass_rc_t rc = IP4_REASS_RC_OK;
+ int consumed = 0;
+ ip4_header_t *fip = vlib_buffer_get_current (fb);
const u32 fragment_first = ip4_get_fragment_offset_bytes (fip);
const u32 fragment_length =
clib_net_to_host_u16 (fip->length) - ip4_header_bytes (fip);
{
// starting a new reassembly
rc =
- ip4_reass_insert_range_in_chain (vm, rm, rt, reass, prev_range_bi,
- *bi0);
+ ip4_full_reass_insert_range_in_chain (vm, rm, rt, reass,
+ prev_range_bi, *bi0);
if (IP4_REASS_RC_OK != rc)
{
return rc;
}
if (PREDICT_FALSE (fb->flags & VLIB_BUFFER_IS_TRACED))
{
- ip4_reass_add_trace (vm, node, rm, reass->id,
- reass->trace_op_counter, *bi0, reass->first_bi,
- reass->data_len, RANGE_NEW, 0, ~0);
- ++reass->trace_op_counter;
+ ip4_full_reass_add_trace (vm, node, rm, reass, *bi0, RANGE_NEW, 0,
+ ~0);
}
*bi0 = ~0;
reass->min_fragment_length = clib_net_to_host_u16 (fip->length);
reass->fragments_n = 1;
return IP4_REASS_RC_OK;
}
- reass->min_fragment_length = clib_min (clib_net_to_host_u16 (fip->length),
- fvnb->ip.reass.estimated_mtu);
+ reass->min_fragment_length =
+ clib_min (clib_net_to_host_u16 (fip->length),
+ fvnb->ip.reass.estimated_mtu);
while (~0 != candidate_range_bi)
{
vlib_buffer_t *candidate_b = vlib_get_buffer (vm, candidate_range_bi);
{
// special case - this fragment falls beyond all known ranges
rc =
- ip4_reass_insert_range_in_chain (vm, rm, rt, reass,
- prev_range_bi, *bi0);
+ ip4_full_reass_insert_range_in_chain (vm, rm, rt, reass,
+ prev_range_bi, *bi0);
if (IP4_REASS_RC_OK != rc)
{
return rc;
{
// this fragment ends before candidate range without any overlap
rc =
- ip4_reass_insert_range_in_chain (vm, rm, rt, reass, prev_range_bi,
- *bi0);
+ ip4_full_reass_insert_range_in_chain (vm, rm, rt, reass,
+ prev_range_bi, *bi0);
if (IP4_REASS_RC_OK != rc)
{
return rc;
// this fragment is a (sub)part of existing range, ignore it
if (PREDICT_FALSE (fb->flags & VLIB_BUFFER_IS_TRACED))
{
- ip4_reass_add_trace (vm, node, rm, reass->id,
- reass->trace_op_counter, *bi0,
- reass->first_bi, reass->data_len,
- RANGE_OVERLAP, 0, ~0);
- ++reass->trace_op_counter;
+ ip4_full_reass_add_trace (vm, node, rm, reass, *bi0,
+ RANGE_OVERLAP, 0, ~0);
}
break;
}
{
u32 overlap =
fragment_last - candidate_vnb->ip.reass.range_first + 1;
- if (overlap < ip4_reass_buffer_get_data_len (candidate_b))
+ if (overlap < ip4_full_reass_buffer_get_data_len (candidate_b))
{
candidate_vnb->ip.reass.range_first += overlap;
if (reass->data_len < overlap)
reass->data_len -= overlap;
if (PREDICT_FALSE (fb->flags & VLIB_BUFFER_IS_TRACED))
{
- ip4_reass_add_trace (vm, node, rm, reass->id,
- reass->trace_op_counter,
- candidate_range_bi,
- reass->first_bi, reass->data_len,
- RANGE_SHRINK, 0, ~0);
- ++reass->trace_op_counter;
+ ip4_full_reass_add_trace (vm, node, rm, reass,
+ candidate_range_bi,
+ RANGE_SHRINK, 0, ~0);
}
rc =
- ip4_reass_insert_range_in_chain (vm, rm, rt, reass,
- prev_range_bi, *bi0);
+ ip4_full_reass_insert_range_in_chain (vm, rm, rt, reass,
+ prev_range_bi,
+ *bi0);
if (IP4_REASS_RC_OK != rc)
{
return rc;
{
u32 overlap =
candidate_vnb->ip.reass.range_last - fragment_first + 1;
- if (overlap < ip4_reass_buffer_get_data_len (candidate_b))
+ if (overlap < ip4_full_reass_buffer_get_data_len (candidate_b))
{
fvnb->ip.reass.range_first += overlap;
if (~0 != candidate_vnb->ip.reass.next_range_bi)
{
// special case - last range discarded
rc =
- ip4_reass_insert_range_in_chain (vm, rm, rt, reass,
- candidate_range_bi,
- *bi0);
+ ip4_full_reass_insert_range_in_chain (vm, rm, rt,
+ reass,
+ candidate_range_bi,
+ *bi0);
if (IP4_REASS_RC_OK != rc)
{
return rc;
u32 next_range_bi = candidate_vnb->ip.reass.next_range_bi;
// discard candidate range, probe next range
rc =
- ip4_reass_remove_range_from_chain (vm, node, rm, reass,
- prev_range_bi,
- candidate_range_bi);
+ ip4_full_reass_remove_range_from_chain (vm, node, rm, reass,
+ prev_range_bi,
+ candidate_range_bi);
if (IP4_REASS_RC_OK != rc)
{
return rc;
{
// special case - last range discarded
rc =
- ip4_reass_insert_range_in_chain (vm, rm, rt, reass,
- prev_range_bi, *bi0);
+ ip4_full_reass_insert_range_in_chain (vm, rm, rt, reass,
+ prev_range_bi,
+ *bi0);
if (IP4_REASS_RC_OK != rc)
{
return rc;
{
if (PREDICT_FALSE (fb->flags & VLIB_BUFFER_IS_TRACED))
{
- ip4_reass_add_trace (vm, node, rm, reass->id,
- reass->trace_op_counter, *bi0, reass->first_bi,
- reass->data_len, RANGE_NEW, 0, ~0);
- ++reass->trace_op_counter;
+ ip4_full_reass_add_trace (vm, node, rm, reass, *bi0, RANGE_NEW, 0,
+ ~0);
}
}
if (~0 != reass->last_packet_octet &&
{
*handoff_thread_idx = reass->sendout_thread_index;
rc =
- ip4_reass_finalize (vm, node, rm, rt, reass, bi0, next0, error0,
- is_custom_app);
+ ip4_full_reass_finalize (vm, node, rm, rt, reass, bi0, next0, error0,
+ is_custom_app);
if (IP4_REASS_RC_OK == rc
&& reass->memory_owner_thread_index != reass->sendout_thread_index)
{
}
else
{
- *next0 = IP4_REASSEMBLY_NEXT_DROP;
+ *next0 = IP4_FULL_REASS_NEXT_DROP;
*error0 = IP4_ERROR_REASS_DUPLICATE_FRAGMENT;
}
}
}
always_inline uword
-ip4_reassembly_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
+ip4_full_reass_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
vlib_frame_t * frame, bool is_feature,
bool is_custom_app)
{
u32 *from = vlib_frame_vector_args (frame);
u32 n_left_from, n_left_to_next, *to_next, next_index;
- ip4_reass_main_t *rm = &ip4_reass_main;
- ip4_reass_per_thread_t *rt = &rm->per_thread_data[vm->thread_index];
+ ip4_full_reass_main_t *rm = &ip4_full_reass_main;
+ ip4_full_reass_per_thread_t *rt = &rm->per_thread_data[vm->thread_index];
clib_spinlock_lock (&rt->lock);
n_left_from = frame->n_vectors;
// this is a whole packet - no fragmentation
if (!is_custom_app)
{
- next0 = IP4_REASSEMBLY_NEXT_INPUT;
+ next0 = IP4_FULL_REASS_NEXT_INPUT;
}
else
{
next0 = vnet_buffer (b0)->ip.reass.next_index;
}
+ goto packet_enqueue;
}
- else
+ const u32 fragment_first = ip4_get_fragment_offset_bytes (ip0);
+ const u32 fragment_length =
+ clib_net_to_host_u16 (ip0->length) - ip4_header_bytes (ip0);
+ const u32 fragment_last = fragment_first + fragment_length - 1;
+ if (fragment_first > fragment_last || fragment_first + fragment_length > UINT16_MAX - 20 || (fragment_length < 8 && ip4_get_fragment_more (ip0))) // 8 is minimum frag length per RFC 791
+ {
+ next0 = IP4_FULL_REASS_NEXT_DROP;
+ error0 = IP4_ERROR_REASS_MALFORMED_PACKET;
+ goto packet_enqueue;
+ }
+ ip4_full_reass_kv_t kv;
+ u8 do_handoff = 0;
+
+ kv.k.as_u64[0] =
+ (u64) vec_elt (ip4_main.fib_index_by_sw_if_index,
+ vnet_buffer (b0)->sw_if_index[VLIB_RX]) |
+ (u64) ip0->src_address.as_u32 << 32;
+ kv.k.as_u64[1] =
+ (u64) ip0->dst_address.
+ as_u32 | (u64) ip0->fragment_id << 32 | (u64) ip0->protocol << 48;
+
+ ip4_full_reass_t *reass =
+ ip4_full_reass_find_or_create (vm, node, rm, rt, &kv,
+ &do_handoff);
+
+ if (reass)
{
const u32 fragment_first = ip4_get_fragment_offset_bytes (ip0);
- const u32 fragment_length =
- clib_net_to_host_u16 (ip0->length) - ip4_header_bytes (ip0);
- const u32 fragment_last = fragment_first + fragment_length - 1;
- if (fragment_first > fragment_last || fragment_first + fragment_length > UINT16_MAX - 20 || (fragment_length < 8 && ip4_get_fragment_more (ip0))) // 8 is minimum frag length per RFC 791
+ if (0 == fragment_first)
{
- next0 = IP4_REASSEMBLY_NEXT_DROP;
- error0 = IP4_ERROR_REASS_MALFORMED_PACKET;
+ reass->sendout_thread_index = vm->thread_index;
}
+ }
+
+ if (PREDICT_FALSE (do_handoff))
+ {
+ next0 = IP4_FULL_REASS_NEXT_HANDOFF;
+ if (is_feature)
+ vnet_buffer (b0)->ip.reass.owner_feature_thread_index =
+ kv.v.memory_owner_thread_index;
else
+ vnet_buffer (b0)->ip.reass.owner_thread_index =
+ kv.v.memory_owner_thread_index;
+ }
+ else if (reass)
+ {
+ u32 handoff_thread_idx;
+ switch (ip4_full_reass_update
+ (vm, node, rm, rt, reass, &bi0, &next0,
+ &error0, is_custom_app, &handoff_thread_idx))
{
- ip4_reass_kv_t kv;
- u8 do_handoff = 0;
-
- kv.k.as_u64[0] =
- (u64) vec_elt (ip4_main.fib_index_by_sw_if_index,
- vnet_buffer (b0)->sw_if_index[VLIB_RX]) |
- (u64) ip0->src_address.as_u32 << 32;
- kv.k.as_u64[1] =
- (u64) ip0->dst_address.as_u32 |
- (u64) ip0->fragment_id << 32 | (u64) ip0->protocol << 48;
-
- ip4_reass_t *reass =
- ip4_reass_find_or_create (vm, node, rm, rt, &kv,
- &do_handoff);
- if (reass)
- {
- const u32 fragment_first =
- ip4_get_fragment_offset_bytes (ip0);
- if (0 == fragment_first)
- {
- reass->sendout_thread_index = vm->thread_index;
- }
- }
- if (PREDICT_FALSE (do_handoff))
- {
- next0 = IP4_REASSEMBLY_NEXT_HANDOFF;
- if (is_feature)
- vnet_buffer (b0)->ip.
- reass.owner_feature_thread_index =
- kv.v.memory_owner_thread_index;
- else
- vnet_buffer (b0)->ip.reass.owner_thread_index =
- kv.v.memory_owner_thread_index;
- }
- else if (reass)
- {
- u32 handoff_thread_idx;
- switch (ip4_reass_update
- (vm, node, rm, rt, reass, &bi0, &next0,
- &error0, is_custom_app, &handoff_thread_idx))
- {
- case IP4_REASS_RC_OK:
- /* nothing to do here */
- break;
- case IP4_REASS_RC_HANDOFF:
- next0 = IP4_REASSEMBLY_NEXT_HANDOFF;
- b0 = vlib_get_buffer (vm, bi0);
- if (is_feature)
- vnet_buffer (b0)->ip.
- reass.owner_feature_thread_index =
- handoff_thread_idx;
- else
- vnet_buffer (b0)->ip.reass.owner_thread_index =
- handoff_thread_idx;
- break;
- case IP4_REASS_RC_TOO_MANY_FRAGMENTS:
- vlib_node_increment_counter (vm, node->node_index,
- IP4_ERROR_REASS_FRAGMENT_CHAIN_TOO_LONG,
- 1);
- ip4_reass_drop_all (vm, node, rm, reass);
- ip4_reass_free (vm, rm, rt, reass);
- goto next_packet;
- break;
- case IP4_REASS_RC_NO_BUF:
- vlib_node_increment_counter (vm, node->node_index,
- IP4_ERROR_REASS_NO_BUF,
- 1);
- ip4_reass_drop_all (vm, node, rm, reass);
- ip4_reass_free (vm, rm, rt, reass);
- goto next_packet;
- break;
- case IP4_REASS_RC_INTERNAL_ERROR:
- /* drop everything and start with a clean slate */
- vlib_node_increment_counter (vm, node->node_index,
- IP4_ERROR_REASS_INTERNAL_ERROR,
- 1);
- ip4_reass_drop_all (vm, node, rm, reass);
- ip4_reass_free (vm, rm, rt, reass);
- goto next_packet;
- break;
- }
- }
+ case IP4_REASS_RC_OK:
+ /* nothing to do here */
+ break;
+ case IP4_REASS_RC_HANDOFF:
+ next0 = IP4_FULL_REASS_NEXT_HANDOFF;
+ b0 = vlib_get_buffer (vm, bi0);
+ if (is_feature)
+ vnet_buffer (b0)->ip.reass.owner_feature_thread_index =
+ handoff_thread_idx;
else
- {
- next0 = IP4_REASSEMBLY_NEXT_DROP;
- error0 = IP4_ERROR_REASS_LIMIT_REACHED;
- }
+ vnet_buffer (b0)->ip.reass.owner_thread_index =
+ handoff_thread_idx;
+ break;
+ case IP4_REASS_RC_TOO_MANY_FRAGMENTS:
+ vlib_node_increment_counter (vm, node->node_index,
+ IP4_ERROR_REASS_FRAGMENT_CHAIN_TOO_LONG,
+ 1);
+ ip4_full_reass_drop_all (vm, node, rm, reass);
+ ip4_full_reass_free (rm, rt, reass);
+ goto next_packet;
+ break;
+ case IP4_REASS_RC_NO_BUF:
+ vlib_node_increment_counter (vm, node->node_index,
+ IP4_ERROR_REASS_NO_BUF, 1);
+ ip4_full_reass_drop_all (vm, node, rm, reass);
+ ip4_full_reass_free (rm, rt, reass);
+ goto next_packet;
+ break;
+ case IP4_REASS_RC_INTERNAL_ERROR:
+ /* drop everything and start with a clean slate */
+ vlib_node_increment_counter (vm, node->node_index,
+ IP4_ERROR_REASS_INTERNAL_ERROR,
+ 1);
+ ip4_full_reass_drop_all (vm, node, rm, reass);
+ ip4_full_reass_free (rm, rt, reass);
+ goto next_packet;
+ break;
}
-
- b0->error = node->errors[error0];
}
+ else
+ {
+ next0 = IP4_FULL_REASS_NEXT_DROP;
+ error0 = IP4_ERROR_REASS_LIMIT_REACHED;
+ }
+
+
+ packet_enqueue:
+ b0->error = node->errors[error0];
if (bi0 != ~0)
{
to_next[0] = bi0;
to_next += 1;
n_left_to_next -= 1;
- if (next0 == IP4_REASSEMBLY_NEXT_HANDOFF)
+ if (next0 == IP4_FULL_REASS_NEXT_HANDOFF)
{
if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
{
if (is_feature)
- ip4_reass_add_trace (vm, node, rm, ~0,
- ~0,
- bi0, ~0, ~0, HANDOFF, 0,
- vnet_buffer (b0)->ip.
- reass.owner_feature_thread_index);
+ ip4_full_reass_add_trace (vm, node, rm, NULL,
+ bi0, HANDOFF, 0,
+ vnet_buffer (b0)->ip.
+ reass.owner_feature_thread_index);
else
- ip4_reass_add_trace (vm, node, rm, ~0, ~0, bi0,
- ~0, ~0, HANDOFF, 0,
- vnet_buffer (b0)->ip.
- reass.owner_thread_index);
+ ip4_full_reass_add_trace (vm, node, rm, NULL,
+ bi0, HANDOFF, 0,
+ vnet_buffer (b0)->ip.
+ reass.owner_thread_index);
}
}
else if (is_feature && IP4_ERROR_NONE == error0)
return frame->n_vectors;
}
-static char *ip4_reassembly_error_strings[] = {
+static char *ip4_full_reass_error_strings[] = {
#define _(sym, string) string,
foreach_ip4_error
#undef _
};
-VLIB_NODE_FN (ip4_reass_node) (vlib_main_t * vm, vlib_node_runtime_t * node,
- vlib_frame_t * frame)
+VLIB_NODE_FN (ip4_full_reass_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
{
- return ip4_reassembly_inline (vm, node, frame, false /* is_feature */ ,
+ return ip4_full_reass_inline (vm, node, frame, false /* is_feature */ ,
false /* is_custom_app */ );
}
/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (ip4_reass_node) = {
- .name = "ip4-reassembly",
+VLIB_REGISTER_NODE (ip4_full_reass_node) = {
+ .name = "ip4-full-reassembly",
.vector_size = sizeof (u32),
- .format_trace = format_ip4_reass_trace,
- .n_errors = ARRAY_LEN (ip4_reassembly_error_strings),
- .error_strings = ip4_reassembly_error_strings,
- .n_next_nodes = IP4_REASSEMBLY_N_NEXT,
+ .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_REASSEMBLY_NEXT_INPUT] = "ip4-input",
- [IP4_REASSEMBLY_NEXT_DROP] = "ip4-drop",
- [IP4_REASSEMBLY_NEXT_HANDOFF] = "ip4-reassembly-handoff",
+ [IP4_FULL_REASS_NEXT_INPUT] = "ip4-input",
+ [IP4_FULL_REASS_NEXT_DROP] = "ip4-drop",
+ [IP4_FULL_REASS_NEXT_HANDOFF] = "ip4-full-reassembly-handoff",
},
};
/* *INDENT-ON* */
-VLIB_NODE_FN (ip4_reass_node_feature) (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
+VLIB_NODE_FN (ip4_full_reass_node_feature) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
{
- return ip4_reassembly_inline (vm, node, frame, true /* is_feature */ ,
+ return ip4_full_reass_inline (vm, node, frame, true /* is_feature */ ,
false /* is_custom_app */ );
}
/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (ip4_reass_node_feature) = {
- .name = "ip4-reassembly-feature",
+VLIB_REGISTER_NODE (ip4_full_reass_node_feature) = {
+ .name = "ip4-full-reassembly-feature",
.vector_size = sizeof (u32),
- .format_trace = format_ip4_reass_trace,
- .n_errors = ARRAY_LEN (ip4_reassembly_error_strings),
- .error_strings = ip4_reassembly_error_strings,
- .n_next_nodes = IP4_REASSEMBLY_N_NEXT,
+ .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_REASSEMBLY_NEXT_INPUT] = "ip4-input",
- [IP4_REASSEMBLY_NEXT_DROP] = "ip4-drop",
- [IP4_REASSEMBLY_NEXT_HANDOFF] = "ip4-reass-feature-hoff",
+ [IP4_FULL_REASS_NEXT_INPUT] = "ip4-input",
+ [IP4_FULL_REASS_NEXT_DROP] = "ip4-drop",
+ [IP4_FULL_REASS_NEXT_HANDOFF] = "ip4-full-reass-feature-hoff",
},
};
/* *INDENT-ON* */
/* *INDENT-OFF* */
-VNET_FEATURE_INIT (ip4_reassembly_feature, static) = {
+VNET_FEATURE_INIT (ip4_full_reass_feature, static) = {
.arc_name = "ip4-unicast",
- .node_name = "ip4-reassembly-feature",
+ .node_name = "ip4-full-reassembly-feature",
.runs_before = VNET_FEATURES ("ip4-lookup",
"ipsec4-input-feature"),
.runs_after = 0,
#ifndef CLIB_MARCH_VARIANT
always_inline u32
-ip4_reass_get_nbuckets ()
+ip4_full_reass_get_nbuckets ()
{
- ip4_reass_main_t *rm = &ip4_reass_main;
+ ip4_full_reass_main_t *rm = &ip4_full_reass_main;
u32 nbuckets;
u8 i;
typedef enum
{
IP4_EVENT_CONFIG_CHANGED = 1,
-} ip4_reass_event_t;
+} ip4_full_reass_event_t;
typedef struct
{
}
static void
-ip4_reass_set_params (u32 timeout_ms, u32 max_reassemblies,
- u32 max_reassembly_length, u32 expire_walk_interval_ms)
+ip4_full_reass_set_params (u32 timeout_ms, u32 max_reassemblies,
+ u32 max_reassembly_length,
+ u32 expire_walk_interval_ms)
{
- ip4_reass_main.timeout_ms = timeout_ms;
- ip4_reass_main.timeout = (f64) timeout_ms / (f64) MSEC_PER_SEC;
- ip4_reass_main.max_reass_n = max_reassemblies;
- ip4_reass_main.max_reass_len = max_reassembly_length;
- ip4_reass_main.expire_walk_interval_ms = expire_walk_interval_ms;
+ ip4_full_reass_main.timeout_ms = timeout_ms;
+ ip4_full_reass_main.timeout = (f64) timeout_ms / (f64) MSEC_PER_SEC;
+ ip4_full_reass_main.max_reass_n = max_reassemblies;
+ ip4_full_reass_main.max_reass_len = max_reassembly_length;
+ ip4_full_reass_main.expire_walk_interval_ms = expire_walk_interval_ms;
}
vnet_api_error_t
-ip4_reass_set (u32 timeout_ms, u32 max_reassemblies,
- u32 max_reassembly_length, u32 expire_walk_interval_ms)
+ip4_full_reass_set (u32 timeout_ms, u32 max_reassemblies,
+ u32 max_reassembly_length, u32 expire_walk_interval_ms)
{
- u32 old_nbuckets = ip4_reass_get_nbuckets ();
- ip4_reass_set_params (timeout_ms, max_reassemblies, max_reassembly_length,
- expire_walk_interval_ms);
- vlib_process_signal_event (ip4_reass_main.vlib_main,
- ip4_reass_main.ip4_reass_expire_node_idx,
+ u32 old_nbuckets = ip4_full_reass_get_nbuckets ();
+ ip4_full_reass_set_params (timeout_ms, max_reassemblies,
+ max_reassembly_length, expire_walk_interval_ms);
+ vlib_process_signal_event (ip4_full_reass_main.vlib_main,
+ ip4_full_reass_main.ip4_full_reass_expire_node_idx,
IP4_EVENT_CONFIG_CHANGED, 0);
- u32 new_nbuckets = ip4_reass_get_nbuckets ();
- if (ip4_reass_main.max_reass_n > 0 && new_nbuckets > old_nbuckets)
+ u32 new_nbuckets = ip4_full_reass_get_nbuckets ();
+ if (ip4_full_reass_main.max_reass_n > 0 && new_nbuckets > old_nbuckets)
{
clib_bihash_16_8_t new_hash;
clib_memset (&new_hash, 0, sizeof (new_hash));
ip4_rehash_cb_ctx ctx;
ctx.failure = 0;
ctx.new_hash = &new_hash;
- clib_bihash_init_16_8 (&new_hash, "ip4-reass", new_nbuckets,
+ clib_bihash_init_16_8 (&new_hash, "ip4-dr", new_nbuckets,
new_nbuckets * 1024);
- clib_bihash_foreach_key_value_pair_16_8 (&ip4_reass_main.hash,
+ clib_bihash_foreach_key_value_pair_16_8 (&ip4_full_reass_main.hash,
ip4_rehash_cb, &ctx);
if (ctx.failure)
{
}
else
{
- clib_bihash_free_16_8 (&ip4_reass_main.hash);
- clib_memcpy_fast (&ip4_reass_main.hash, &new_hash,
- sizeof (ip4_reass_main.hash));
- clib_bihash_copied (&ip4_reass_main.hash, &new_hash);
+ clib_bihash_free_16_8 (&ip4_full_reass_main.hash);
+ clib_memcpy_fast (&ip4_full_reass_main.hash, &new_hash,
+ sizeof (ip4_full_reass_main.hash));
+ clib_bihash_copied (&ip4_full_reass_main.hash, &new_hash);
}
}
return 0;
}
vnet_api_error_t
-ip4_reass_get (u32 * timeout_ms, u32 * max_reassemblies,
- u32 * max_reassembly_length, u32 * expire_walk_interval_ms)
+ip4_full_reass_get (u32 * timeout_ms, u32 * max_reassemblies,
+ u32 * max_reassembly_length,
+ u32 * expire_walk_interval_ms)
{
- *timeout_ms = ip4_reass_main.timeout_ms;
- *max_reassemblies = ip4_reass_main.max_reass_n;
- *max_reassembly_length = ip4_reass_main.max_reass_len;
- *expire_walk_interval_ms = ip4_reass_main.expire_walk_interval_ms;
+ *timeout_ms = ip4_full_reass_main.timeout_ms;
+ *max_reassemblies = ip4_full_reass_main.max_reass_n;
+ *max_reassembly_length = ip4_full_reass_main.max_reass_len;
+ *expire_walk_interval_ms = ip4_full_reass_main.expire_walk_interval_ms;
return 0;
}
static clib_error_t *
-ip4_reass_init_function (vlib_main_t * vm)
+ip4_full_reass_init_function (vlib_main_t * vm)
{
- ip4_reass_main_t *rm = &ip4_reass_main;
+ ip4_full_reass_main_t *rm = &ip4_full_reass_main;
clib_error_t *error = 0;
u32 nbuckets;
vlib_node_t *node;
rm->vlib_main = vm;
vec_validate (rm->per_thread_data, vlib_num_workers ());
- ip4_reass_per_thread_t *rt;
+ ip4_full_reass_per_thread_t *rt;
vec_foreach (rt, rm->per_thread_data)
{
clib_spinlock_init (&rt->lock);
pool_alloc (rt->pool, rm->max_reass_n);
}
- node = vlib_get_node_by_name (vm, (u8 *) "ip4-reassembly-expire-walk");
+ node = vlib_get_node_by_name (vm, (u8 *) "ip4-full-reassembly-expire-walk");
ASSERT (node);
- rm->ip4_reass_expire_node_idx = node->index;
+ rm->ip4_full_reass_expire_node_idx = node->index;
- ip4_reass_set_params (IP4_REASS_TIMEOUT_DEFAULT_MS,
- IP4_REASS_MAX_REASSEMBLIES_DEFAULT,
- IP4_REASS_MAX_REASSEMBLY_LENGTH_DEFAULT,
- IP4_REASS_EXPIRE_WALK_INTERVAL_DEFAULT_MS);
+ ip4_full_reass_set_params (IP4_REASS_TIMEOUT_DEFAULT_MS,
+ IP4_REASS_MAX_REASSEMBLIES_DEFAULT,
+ IP4_REASS_MAX_REASSEMBLY_LENGTH_DEFAULT,
+ IP4_REASS_EXPIRE_WALK_INTERVAL_DEFAULT_MS);
- nbuckets = ip4_reass_get_nbuckets ();
- clib_bihash_init_16_8 (&rm->hash, "ip4-reass", nbuckets, nbuckets * 1024);
+ nbuckets = ip4_full_reass_get_nbuckets ();
+ clib_bihash_init_16_8 (&rm->hash, "ip4-dr", nbuckets, nbuckets * 1024);
node = vlib_get_node_by_name (vm, (u8 *) "ip4-drop");
ASSERT (node);
rm->ip4_drop_idx = node->index;
- rm->fq_index = vlib_frame_queue_main_init (ip4_reass_node.index, 0);
+ rm->fq_index = vlib_frame_queue_main_init (ip4_full_reass_node.index, 0);
rm->fq_feature_index =
- vlib_frame_queue_main_init (ip4_reass_node_feature.index, 0);
+ vlib_frame_queue_main_init (ip4_full_reass_node_feature.index, 0);
return error;
}
-VLIB_INIT_FUNCTION (ip4_reass_init_function);
+VLIB_INIT_FUNCTION (ip4_full_reass_init_function);
#endif /* CLIB_MARCH_VARIANT */
static uword
-ip4_reass_walk_expired (vlib_main_t * vm,
- vlib_node_runtime_t * node, vlib_frame_t * f)
+ip4_full_reass_walk_expired (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * f)
{
- ip4_reass_main_t *rm = &ip4_reass_main;
+ ip4_full_reass_main_t *rm = &ip4_full_reass_main;
uword event_type, *event_data = 0;
while (true)
}
f64 now = vlib_time_now (vm);
- ip4_reass_t *reass;
+ ip4_full_reass_t *reass;
int *pool_indexes_to_free = NULL;
uword thread_index = 0;
const uword nthreads = vlib_num_workers () + 1;
for (thread_index = 0; thread_index < nthreads; ++thread_index)
{
- ip4_reass_per_thread_t *rt = &rm->per_thread_data[thread_index];
+ ip4_full_reass_per_thread_t *rt =
+ &rm->per_thread_data[thread_index];
clib_spinlock_lock (&rt->lock);
vec_reset_length (pool_indexes_to_free);
/* *INDENT-OFF* */
vec_foreach (i, pool_indexes_to_free)
{
- ip4_reass_t *reass = pool_elt_at_index (rt->pool, i[0]);
- ip4_reass_drop_all (vm, node, rm, reass);
- ip4_reass_free (vm, rm, rt, reass);
+ ip4_full_reass_t *reass = pool_elt_at_index (rt->pool, i[0]);
+ ip4_full_reass_drop_all (vm, node, rm, reass);
+ ip4_full_reass_free (rm, rt, reass);
}
/* *INDENT-ON* */
}
/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (ip4_reass_expire_node) = {
- .function = ip4_reass_walk_expired,
+VLIB_REGISTER_NODE (ip4_full_reass_expire_node) = {
+ .function = ip4_full_reass_walk_expired,
.type = VLIB_NODE_TYPE_PROCESS,
- .name = "ip4-reassembly-expire-walk",
- .format_trace = format_ip4_reass_trace,
- .n_errors = ARRAY_LEN (ip4_reassembly_error_strings),
- .error_strings = ip4_reassembly_error_strings,
+ .name = "ip4-full-reassembly-expire-walk",
+ .format_trace = format_ip4_full_reass_trace,
+ .n_errors = ARRAY_LEN (ip4_full_reass_error_strings),
+ .error_strings = ip4_full_reass_error_strings,
};
/* *INDENT-ON* */
static u8 *
-format_ip4_reass_key (u8 * s, va_list * args)
+format_ip4_full_reass_key (u8 * s, va_list * args)
{
- ip4_reass_key_t *key = va_arg (*args, ip4_reass_key_t *);
- s = format (s, "xx_id: %u, src: %U, dst: %U, frag_id: %u, proto: %u",
- key->xx_id, format_ip4_address, &key->src, format_ip4_address,
- &key->dst, clib_net_to_host_u16 (key->frag_id), key->proto);
+ ip4_full_reass_key_t *key = va_arg (*args, ip4_full_reass_key_t *);
+ s =
+ format (s,
+ "xx_id: %u, src: %U, dst: %U, frag_id: %u, proto: %u",
+ key->xx_id, format_ip4_address, &key->src, format_ip4_address,
+ &key->dst, clib_net_to_host_u16 (key->frag_id), key->proto);
return s;
}
format_ip4_reass (u8 * s, va_list * args)
{
vlib_main_t *vm = va_arg (*args, vlib_main_t *);
- ip4_reass_t *reass = va_arg (*args, ip4_reass_t *);
+ ip4_full_reass_t *reass = va_arg (*args, ip4_full_reass_t *);
s = format (s, "ID: %lu, key: %U\n first_bi: %u, data_len: %u, "
"last_packet_octet: %u, trace_op_counter: %u\n",
- reass->id, format_ip4_reass_key, &reass->key, reass->first_bi,
- reass->data_len, reass->last_packet_octet,
- reass->trace_op_counter);
+ reass->id, format_ip4_full_reass_key, &reass->key,
+ reass->first_bi, reass->data_len,
+ reass->last_packet_octet, reass->trace_op_counter);
+
u32 bi = reass->first_bi;
u32 counter = 0;
while (~0 != bi)
{
vlib_buffer_t *b = vlib_get_buffer (vm, bi);
vnet_buffer_opaque_t *vnb = vnet_buffer (b);
- s = format (s, " #%03u: range: [%u, %u], bi: %u, off: %d, len: %u, "
- "fragment[%u, %u]\n",
- counter, vnb->ip.reass.range_first,
- vnb->ip.reass.range_last, bi,
- ip4_reass_buffer_get_data_offset (b),
- ip4_reass_buffer_get_data_len (b),
- vnb->ip.reass.fragment_first, vnb->ip.reass.fragment_last);
+ s =
+ format (s,
+ " #%03u: range: [%u, %u], bi: %u, off: %d, len: %u, "
+ "fragment[%u, %u]\n", counter, vnb->ip.reass.range_first,
+ vnb->ip.reass.range_last, bi,
+ ip4_full_reass_buffer_get_data_offset (b),
+ ip4_full_reass_buffer_get_data_len (b),
+ vnb->ip.reass.fragment_first, vnb->ip.reass.fragment_last);
if (b->flags & VLIB_BUFFER_NEXT_PRESENT)
{
bi = b->next_buffer;
unformat_input_t * input,
CLIB_UNUSED (vlib_cli_command_t * lmd))
{
- ip4_reass_main_t *rm = &ip4_reass_main;
+ ip4_full_reass_main_t *rm = &ip4_full_reass_main;
vlib_cli_output (vm, "---------------------");
vlib_cli_output (vm, "IP4 reassembly status");
}
u32 sum_reass_n = 0;
- ip4_reass_t *reass;
+ ip4_full_reass_t *reass;
uword thread_index;
const uword nthreads = vlib_num_workers () + 1;
for (thread_index = 0; thread_index < nthreads; ++thread_index)
{
- ip4_reass_per_thread_t *rt = &rm->per_thread_data[thread_index];
+ ip4_full_reass_per_thread_t *rt = &rm->per_thread_data[thread_index];
clib_spinlock_lock (&rt->lock);
if (details)
{
}
/* *INDENT-OFF* */
-VLIB_CLI_COMMAND (show_ip4_reassembly_cmd, static) = {
- .path = "show ip4-reassembly",
- .short_help = "show ip4-reassembly [details]",
+VLIB_CLI_COMMAND (show_ip4_full_reass_cmd, static) = {
+ .path = "show ip4-full-reassembly",
+ .short_help = "show ip4-full-reassembly [details]",
.function = show_ip4_reass,
};
/* *INDENT-ON* */
#ifndef CLIB_MARCH_VARIANT
vnet_api_error_t
-ip4_reass_enable_disable (u32 sw_if_index, u8 enable_disable)
+ip4_full_reass_enable_disable (u32 sw_if_index, u8 enable_disable)
{
return vnet_feature_enable_disable ("ip4-unicast",
- "ip4-reassembly-feature", sw_if_index,
- enable_disable, 0, 0);
+ "ip4-full-reassembly-feature",
+ sw_if_index, enable_disable, 0, 0);
}
#endif /* CLIB_MARCH_VARIANT */
-#define foreach_ip4_reassembly_handoff_error \
+#define foreach_ip4_full_reass_handoff_error \
_(CONGESTION_DROP, "congestion drop")
typedef enum
{
-#define _(sym,str) IP4_REASSEMBLY_HANDOFF_ERROR_##sym,
- foreach_ip4_reassembly_handoff_error
+#define _(sym,str) IP4_FULL_REASS_HANDOFF_ERROR_##sym,
+ foreach_ip4_full_reass_handoff_error
#undef _
- IP4_REASSEMBLY_HANDOFF_N_ERROR,
-} ip4_reassembly_handoff_error_t;
+ IP4_FULL_REASS_HANDOFF_N_ERROR,
+} ip4_full_reass_handoff_error_t;
-static char *ip4_reassembly_handoff_error_strings[] = {
+static char *ip4_full_reass_handoff_error_strings[] = {
#define _(sym,string) string,
- foreach_ip4_reassembly_handoff_error
+ foreach_ip4_full_reass_handoff_error
#undef _
};
typedef struct
{
u32 next_worker_index;
-} ip4_reassembly_handoff_trace_t;
+} ip4_full_reass_handoff_trace_t;
static u8 *
-format_ip4_reassembly_handoff_trace (u8 * s, va_list * args)
+format_ip4_full_reass_handoff_trace (u8 * s, va_list * args)
{
CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
- ip4_reassembly_handoff_trace_t *t =
- va_arg (*args, ip4_reassembly_handoff_trace_t *);
+ ip4_full_reass_handoff_trace_t *t =
+ va_arg (*args, ip4_full_reass_handoff_trace_t *);
s =
- format (s, "ip4-reassembly-handoff: next-worker %d",
+ format (s, "ip4-full-reassembly-handoff: next-worker %d",
t->next_worker_index);
return s;
}
always_inline uword
-ip4_reassembly_handoff_node_inline (vlib_main_t * vm,
+ip4_full_reass_handoff_node_inline (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * frame, bool is_feature)
{
- ip4_reass_main_t *rm = &ip4_reass_main;
+ ip4_full_reass_main_t *rm = &ip4_full_reass_main;
vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b;
u32 n_enq, n_left_from, *from;
((node->flags & VLIB_NODE_FLAG_TRACE)
&& (b[0]->flags & VLIB_BUFFER_IS_TRACED)))
{
- ip4_reassembly_handoff_trace_t *t =
+ ip4_full_reass_handoff_trace_t *t =
vlib_add_trace (vm, node, b[0], sizeof (*t));
t->next_worker_index = ti[0];
}
if (n_enq < frame->n_vectors)
vlib_node_increment_counter (vm, node->node_index,
- IP4_REASSEMBLY_HANDOFF_ERROR_CONGESTION_DROP,
+ IP4_FULL_REASS_HANDOFF_ERROR_CONGESTION_DROP,
frame->n_vectors - n_enq);
return frame->n_vectors;
}
-VLIB_NODE_FN (ip4_reassembly_handoff_node) (vlib_main_t * vm,
+VLIB_NODE_FN (ip4_full_reass_handoff_node) (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
- return ip4_reassembly_handoff_node_inline (vm, node, frame,
+ return ip4_full_reass_handoff_node_inline (vm, node, frame,
false /* is_feature */ );
}
/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (ip4_reassembly_handoff_node) = {
- .name = "ip4-reassembly-handoff",
+VLIB_REGISTER_NODE (ip4_full_reass_handoff_node) = {
+ .name = "ip4-full-reassembly-handoff",
.vector_size = sizeof (u32),
- .n_errors = ARRAY_LEN(ip4_reassembly_handoff_error_strings),
- .error_strings = ip4_reassembly_handoff_error_strings,
- .format_trace = format_ip4_reassembly_handoff_trace,
+ .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,
/* *INDENT-OFF* */
-VLIB_NODE_FN (ip4_reassembly_feature_handoff_node) (vlib_main_t * vm,
+VLIB_NODE_FN (ip4_full_reass_feature_handoff_node) (vlib_main_t * vm,
vlib_node_runtime_t *
node,
vlib_frame_t * frame)
{
- return ip4_reassembly_handoff_node_inline (vm, node, frame,
+ return ip4_full_reass_handoff_node_inline (vm, node, frame,
true /* is_feature */ );
}
/* *INDENT-ON* */
/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (ip4_reassembly_feature_handoff_node) = {
- .name = "ip4-reass-feature-hoff",
+VLIB_REGISTER_NODE (ip4_full_reass_feature_handoff_node) = {
+ .name = "ip4-full-reass-feature-hoff",
.vector_size = sizeof (u32),
- .n_errors = ARRAY_LEN(ip4_reassembly_handoff_error_strings),
- .error_strings = ip4_reassembly_handoff_error_strings,
- .format_trace = format_ip4_reassembly_handoff_trace,
+ .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,
Code Review / vpp.git / blobdiff