* Traffic input usually is IPv6 packets. However it is possible to have
* IPv4 packets or L2 frames. (that are encapsulated into IPv6 with SRH)
*
- * This file provides the appropiates VPP graph nodes to do any of these
+ * This file provides the appropriate VPP graph nodes to do any of these
* methods.
*
*/
#include <vlib/vlib.h>
#include <vnet/vnet.h>
#include <vnet/srv6/sr.h>
-#include <vnet/ip/ip.h>
+#include <vnet/ip/ip4_inlines.h>
+#include <vnet/ip/ip6_inlines.h>
#include <vnet/srv6/sr_packet.h>
-#include <vnet/ip/ip6_packet.h>
#include <vnet/fib/ip6_fib.h>
#include <vnet/dpo/dpo.h>
#include <vnet/dpo/replicate_dpo.h>
clib_memcpy_fast (&sr_pr_encaps_src, address, sizeof (sr_pr_encaps_src));
}
+ip6_address_t *
+sr_get_encaps_source ()
+{
+ return &sr_pr_encaps_src;
+}
+
static clib_error_t *
set_sr_src_command_fn (vlib_main_t * vm, unformat_input_t * input,
vlib_cli_command_t * cmd)
* @return precomputed rewrite string for encapsulation
*/
static inline u8 *
-compute_rewrite_encaps (ip6_address_t * sl)
+compute_rewrite_encaps (ip6_address_t *sl, u8 type)
{
ip6_header_t *iph;
ip6_sr_header_t *srh;
* @return precomputed rewrite string for SRH insertion
*/
static inline u8 *
-compute_rewrite_insert (ip6_address_t * sl)
+compute_rewrite_insert (ip6_address_t *sl, u8 type)
{
ip6_sr_header_t *srh;
ip6_address_t *addrp, *this_address;
{
ip6_sr_main_t *sm = &sr_main;
ip6_sr_sl_t *segment_list;
+ sr_policy_fn_registration_t *plugin = 0;
pool_get (sm->sid_lists, segment_list);
clib_memset (segment_list, 0, sizeof (*segment_list));
/* Fill in segment list */
segment_list->weight =
(weight != (u32) ~ 0 ? weight : SR_SEGMENT_LIST_WEIGHT_DEFAULT);
+
segment_list->segments = vec_dup (sl);
+ segment_list->policy_type = sr_policy->type;
+
+ segment_list->egress_fib_table =
+ ip6_fib_index_from_table_id (sr_policy->fib_table);
if (is_encap)
{
- segment_list->rewrite = compute_rewrite_encaps (sl);
+ segment_list->rewrite = compute_rewrite_encaps (sl, sr_policy->type);
segment_list->rewrite_bsid = segment_list->rewrite;
}
else
{
- segment_list->rewrite = compute_rewrite_insert (sl);
+ segment_list->rewrite = compute_rewrite_insert (sl, sr_policy->type);
segment_list->rewrite_bsid = compute_rewrite_bsid (sl);
}
+ if (sr_policy->plugin)
+ {
+ plugin =
+ pool_elt_at_index (sm->policy_plugin_functions,
+ sr_policy->plugin - SR_BEHAVIOR_LAST);
+
+ segment_list->plugin = sr_policy->plugin;
+ segment_list->plugin_mem = sr_policy->plugin_mem;
+
+ plugin->creation (sr_policy);
+ }
+
/* Create DPO */
dpo_reset (&segment_list->bsid_dpo);
dpo_reset (&segment_list->ip6_dpo);
if (is_encap)
{
- dpo_set (&segment_list->ip6_dpo, sr_pr_encaps_dpo_type, DPO_PROTO_IP6,
- segment_list - sm->sid_lists);
- dpo_set (&segment_list->ip4_dpo, sr_pr_encaps_dpo_type, DPO_PROTO_IP4,
- segment_list - sm->sid_lists);
- dpo_set (&segment_list->bsid_dpo, sr_pr_bsid_encaps_dpo_type,
- DPO_PROTO_IP6, segment_list - sm->sid_lists);
+ if (!sr_policy->plugin)
+ {
+ dpo_set (&segment_list->ip6_dpo, sr_pr_encaps_dpo_type,
+ DPO_PROTO_IP6, segment_list - sm->sid_lists);
+ dpo_set (&segment_list->ip4_dpo, sr_pr_encaps_dpo_type,
+ DPO_PROTO_IP4, segment_list - sm->sid_lists);
+ dpo_set (&segment_list->bsid_dpo, sr_pr_bsid_encaps_dpo_type,
+ DPO_PROTO_IP6, segment_list - sm->sid_lists);
+ }
+ else
+ {
+ dpo_set (&segment_list->ip6_dpo, plugin->dpo, DPO_PROTO_IP6,
+ segment_list - sm->sid_lists);
+ dpo_set (&segment_list->ip4_dpo, plugin->dpo, DPO_PROTO_IP4,
+ segment_list - sm->sid_lists);
+ dpo_set (&segment_list->bsid_dpo, plugin->dpo, DPO_PROTO_IP6,
+ segment_list - sm->sid_lists);
+ }
}
else
{
- dpo_set (&segment_list->ip6_dpo, sr_pr_insert_dpo_type, DPO_PROTO_IP6,
- segment_list - sm->sid_lists);
- dpo_set (&segment_list->bsid_dpo, sr_pr_bsid_insert_dpo_type,
- DPO_PROTO_IP6, segment_list - sm->sid_lists);
+ if (!sr_policy->plugin)
+ {
+ dpo_set (&segment_list->ip6_dpo, sr_pr_insert_dpo_type,
+ DPO_PROTO_IP6, segment_list - sm->sid_lists);
+ dpo_set (&segment_list->bsid_dpo, sr_pr_bsid_insert_dpo_type,
+ DPO_PROTO_IP6, segment_list - sm->sid_lists);
+ }
+ else
+ {
+ dpo_set (&segment_list->ip6_dpo, plugin->dpo, DPO_PROTO_IP6,
+ segment_list - sm->sid_lists);
+ dpo_set (&segment_list->bsid_dpo, plugin->dpo, DPO_PROTO_IP6,
+ segment_list - sm->sid_lists);
+ }
}
return segment_list;
}
/**
- * @brief Updates the Load Balancer after an SR Policy change
+ * @brief Updates the Load-Balancer after an SR Policy change
*
* @param sr_policy is the modified SR Policy
*/
}
/* Create the LB path vector */
- //path_vector = vec_new(load_balance_path_t, vec_len(sr_policy->segments_lists));
vec_foreach (sl_index, sr_policy->segments_lists)
{
segment_list = pool_elt_at_index (sm->sid_lists, *sl_index);
vec_free (b_path_vector);
vec_free (ip6_path_vector);
vec_free (ip4_path_vector);
-
}
/**
* @return 0 if correct, else error
*/
int
-sr_policy_add (ip6_address_t * bsid, ip6_address_t * segments,
- u32 weight, u8 behavior, u32 fib_table, u8 is_encap)
+sr_policy_add (ip6_address_t *bsid, ip6_address_t *segments, u32 weight,
+ u8 type, u32 fib_table, u8 is_encap, u16 plugin,
+ void *ls_plugin_mem)
{
ip6_sr_main_t *sm = &sr_main;
ip6_sr_policy_t *sr_policy = 0;
pool_get (sm->sr_policies, sr_policy);
clib_memset (sr_policy, 0, sizeof (*sr_policy));
clib_memcpy_fast (&sr_policy->bsid, bsid, sizeof (ip6_address_t));
- sr_policy->type = behavior;
+ sr_policy->type = type;
sr_policy->fib_table = (fib_table != (u32) ~ 0 ? fib_table : 0); //Is default FIB 0 ?
sr_policy->is_encap = is_encap;
+ if (plugin)
+ {
+ sr_policy->plugin = plugin;
+ sr_policy->plugin_mem = ls_plugin_mem;
+ }
+
/* Copy the key */
mhash_set (&sm->sr_policies_index_hash, bsid, sr_policy - sm->sr_policies,
NULL);
else
{
sr_policy = pool_elt_at_index (sm->sr_policies, index);
- if (!sr_policy)
- return -1;
}
/* Remove BindingSID FIB entry */
pool_put_index (sm->sid_lists, *sl_index);
}
+ if (sr_policy->plugin)
+ {
+ sr_policy_fn_registration_t *plugin = 0;
+
+ plugin =
+ pool_elt_at_index (sm->policy_plugin_functions,
+ sr_policy->plugin - SR_BEHAVIOR_LAST);
+
+ plugin->removal (sr_policy);
+ sr_policy->plugin = 0;
+ sr_policy->plugin_mem = NULL;
+ }
+
/* Remove SR policy entry */
mhash_unset (&sm->sr_policies_index_hash, &sr_policy->bsid, NULL);
pool_put (sm->sr_policies, sr_policy);
else
{
sr_policy = pool_elt_at_index (sm->sr_policies, index);
- if (!sr_policy)
- return -1;
}
if (operation == 1) /* Add SR List to an existing SR policy */
sr_policy_command_fn (vlib_main_t * vm, unformat_input_t * input,
vlib_cli_command_t * cmd)
{
+ ip6_sr_main_t *sm = &sr_main;
int rv = -1;
char is_del = 0, is_add = 0, is_mod = 0;
char policy_set = 0;
ip6_address_t *segments = 0, *this_seg;
u8 operation = 0;
char is_encap = 1;
- char is_spray = 0;
+ u8 type = SR_POLICY_TYPE_DEFAULT;
+ u16 behavior = 0;
+ void *ls_plugin_mem = 0;
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
else if (unformat (input, "insert"))
is_encap = 0;
else if (unformat (input, "spray"))
- is_spray = 1;
+ type = SR_POLICY_TYPE_SPRAY;
+ else if (!behavior && unformat (input, "behavior"))
+ {
+ sr_policy_fn_registration_t *plugin = 0, **vec_plugins = 0;
+ sr_policy_fn_registration_t **plugin_it = 0;
+
+ /* *INDENT-OFF* */
+ pool_foreach (plugin, sm->policy_plugin_functions)
+ {
+ vec_add1 (vec_plugins, plugin);
+ }
+ /* *INDENT-ON* */
+
+ vec_foreach (plugin_it, vec_plugins)
+ {
+ if (unformat
+ (input, "%U", (*plugin_it)->ls_unformat, &ls_plugin_mem))
+ {
+ behavior = (*plugin_it)->sr_policy_function_number;
+ break;
+ }
+ }
+
+ if (!behavior)
+ {
+ return clib_error_return (0, "Invalid behavior");
+ }
+ }
else
break;
}
if (is_add)
{
+ if (behavior && vec_len (segments) == 0)
+ {
+ vec_add2 (segments, this_seg, 1);
+ clib_memset (this_seg, 0, sizeof (*this_seg));
+ }
+
if (vec_len (segments) == 0)
return clib_error_return (0, "No Segment List specified");
- rv = sr_policy_add (&bsid, segments, weight,
- (is_spray ? SR_POLICY_TYPE_SPRAY :
- SR_POLICY_TYPE_DEFAULT), fib_table, is_encap);
+
+ rv = sr_policy_add (&bsid, segments, weight, type, fib_table, is_encap,
+ behavior, ls_plugin_mem);
+
vec_free (segments);
}
else if (is_del)
return clib_error_return (0, "No Segment List specified");
if (operation == 3 && weight == (u32) ~ 0)
return clib_error_return (0, "No new weight for the SL specified");
+
rv = sr_policy_mod ((sr_policy_index != (u32) ~ 0 ? NULL : &bsid),
sr_policy_index, fib_table, operation, segments,
sl_index, weight);
- vec_free (segments);
+
+ if (segments)
+ vec_free (segments);
}
switch (rv)
vlib_cli_output (vm, "SR policies:");
/* *INDENT-OFF* */
- pool_foreach (sr_policy, sm->sr_policies,
- {vec_add1 (vec_policies, sr_policy); } );
+ pool_foreach (sr_policy, sm->sr_policies)
+ {vec_add1 (vec_policies, sr_policy); }
/* *INDENT-ON* */
vec_foreach_index (i, vec_policies)
vlib_cli_output (vm, "\tBehavior: %s",
(sr_policy->is_encap ? "Encapsulation" :
"SRH insertion"));
- vlib_cli_output (vm, "\tType: %s",
- (sr_policy->type ==
- SR_POLICY_TYPE_DEFAULT ? "Default" : "Spray"));
+ switch (sr_policy->type)
+ {
+ case SR_POLICY_TYPE_SPRAY:
+ vlib_cli_output (vm, "\tType: %s", "Spray");
+ break;
+ default:
+ vlib_cli_output (vm, "\tType: %s", "Default");
+ break;
+ }
vlib_cli_output (vm, "\tFIB table: %u",
(sr_policy->fib_table !=
(u32) ~ 0 ? sr_policy->fib_table : 0));
}
s = format (s, "\b\b > ");
s = format (s, "weight: %u", segment_list->weight);
- vlib_cli_output (vm, " %s", s);
+ vlib_cli_output (vm, " %v", s);
}
vlib_cli_output (vm, "-----------");
}
};
/* *INDENT-ON* */
+/**
+ * @brief CLI to display onscreen the SR encaps source addr
+ */
+static clib_error_t *
+show_sr_encaps_source_command_fn (vlib_main_t * vm, unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ vlib_cli_output (vm, "SR encaps source addr = %U", format_ip6_address,
+ sr_get_encaps_source ());
+
+ return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (show_sr_encaps_source_command, static) = {
+ .path = "show sr encaps source addr",
+ .short_help = "show sr encaps source addr",
+ .function = show_sr_encaps_source_command_fn,
+};
+/* *INDENT-ON* */
+
+/**
+ * @brief CLI to display onscreen the hop-limit value used for SRv6 encapsulation
+ */
+static clib_error_t *
+show_sr_encaps_hop_limit_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ vlib_cli_output (vm, "SR encaps hop-limit = %u", sr_get_hop_limit ());
+
+ return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (show_sr_encaps_hop_limit_command, static) = {
+ .path = "show sr encaps hop-limit",
+ .short_help = "show sr encaps hop-limit",
+ .function = show_sr_encaps_hop_limit_command_fn,
+};
+/* *INDENT-ON* */
+
/*************************** SR rewrite graph node ****************************/
/**
* @brief Trace for the SR Policy Rewrite graph node
* @brief IPv6 encapsulation processing as per RFC2473
*/
static_always_inline void
-encaps_processing_v6 (vlib_node_runtime_t * node,
- vlib_buffer_t * b0,
- ip6_header_t * ip0, ip6_header_t * ip0_encap)
+encaps_processing_v6 (vlib_node_runtime_t *node, vlib_buffer_t *b0,
+ ip6_header_t *ip0, ip6_header_t *ip0_encap,
+ u8 policy_type)
{
u32 new_l0;
+ u32 flow_label;
ip0_encap->hop_limit -= 1;
new_l0 =
ip0->payload_length + sizeof (ip6_header_t) +
clib_net_to_host_u16 (ip0_encap->payload_length);
ip0->payload_length = clib_host_to_net_u16 (new_l0);
- ip0->ip_version_traffic_class_and_flow_label =
- ip0_encap->ip_version_traffic_class_and_flow_label;
+
+ flow_label = ip6_compute_flow_hash (ip0_encap, IP_FLOW_HASH_DEFAULT);
+ ip0->ip_version_traffic_class_and_flow_label = clib_host_to_net_u32 (
+ 0 |
+ (clib_net_to_host_u32 (
+ ip0_encap->ip_version_traffic_class_and_flow_label) &
+ 0xfff00000) |
+ (flow_label & 0x0000ffff));
}
/**
vlib_prefetch_buffer_header (p6, LOAD);
vlib_prefetch_buffer_header (p7, LOAD);
- CLIB_PREFETCH (p4->data, CLIB_CACHE_LINE_BYTES, STORE);
- CLIB_PREFETCH (p5->data, CLIB_CACHE_LINE_BYTES, STORE);
- CLIB_PREFETCH (p6->data, CLIB_CACHE_LINE_BYTES, STORE);
- CLIB_PREFETCH (p7->data, CLIB_CACHE_LINE_BYTES, STORE);
+ clib_prefetch_store (p4->data);
+ clib_prefetch_store (p5->data);
+ clib_prefetch_store (p6->data);
+ clib_prefetch_store (p7->data);
}
to_next[0] = bi0 = from[0];
ip2 = vlib_buffer_get_current (b2);
ip3 = vlib_buffer_get_current (b3);
- encaps_processing_v6 (node, b0, ip0, ip0_encap);
- encaps_processing_v6 (node, b1, ip1, ip1_encap);
- encaps_processing_v6 (node, b2, ip2, ip2_encap);
- encaps_processing_v6 (node, b3, ip3, ip3_encap);
+ encaps_processing_v6 (node, b0, ip0, ip0_encap, sl0->policy_type);
+ encaps_processing_v6 (node, b1, ip1, ip1_encap, sl1->policy_type);
+ encaps_processing_v6 (node, b2, ip2, ip2_encap, sl2->policy_type);
+ encaps_processing_v6 (node, b3, ip3, ip3_encap, sl3->policy_type);
+
+ vnet_buffer (b0)->sw_if_index[VLIB_TX] = sl0->egress_fib_table;
+ vnet_buffer (b1)->sw_if_index[VLIB_TX] = sl1->egress_fib_table;
+ vnet_buffer (b2)->sw_if_index[VLIB_TX] = sl2->egress_fib_table;
+ vnet_buffer (b3)->sw_if_index[VLIB_TX] = sl3->egress_fib_table;
if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)))
{
ip0 = vlib_buffer_get_current (b0);
- encaps_processing_v6 (node, b0, ip0, ip0_encap);
+ encaps_processing_v6 (node, b0, ip0, ip0_encap, sl0->policy_type);
+
+ vnet_buffer (b0)->sw_if_index[VLIB_TX] = sl0->egress_fib_table;
if (PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_TRACE) &&
PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
ip6_sr_header_t *sr0;
u32 checksum0;
+ u32 flow_label;
/* Inner IPv4: Decrement TTL & update checksum */
ip0_encap->ttl -= 1;
/* Outer IPv6: Update length, FL, proto */
new_l0 = ip0->payload_length + clib_net_to_host_u16 (ip0_encap->length);
ip0->payload_length = clib_host_to_net_u16 (new_l0);
- ip0->ip_version_traffic_class_and_flow_label =
- clib_host_to_net_u32 (0 | ((6 & 0xF) << 28) |
- ((ip0_encap->tos & 0xFF) << 20));
+ flow_label = ip4_compute_flow_hash (ip0_encap, IP_FLOW_HASH_DEFAULT);
+ ip0->ip_version_traffic_class_and_flow_label = clib_host_to_net_u32 (
+ 0 | ((6 & 0xF) << 28) | ((ip0_encap->tos & 0xFF) << 20) |
+ (flow_label & 0x0000ffff));
if (ip0->protocol == IP_PROTOCOL_IPV6_ROUTE)
{
sr0 = (void *) (ip0 + 1);
vlib_prefetch_buffer_header (p6, LOAD);
vlib_prefetch_buffer_header (p7, LOAD);
- CLIB_PREFETCH (p4->data, CLIB_CACHE_LINE_BYTES, STORE);
- CLIB_PREFETCH (p5->data, CLIB_CACHE_LINE_BYTES, STORE);
- CLIB_PREFETCH (p6->data, CLIB_CACHE_LINE_BYTES, STORE);
- CLIB_PREFETCH (p7->data, CLIB_CACHE_LINE_BYTES, STORE);
+ clib_prefetch_store (p4->data);
+ clib_prefetch_store (p5->data);
+ clib_prefetch_store (p6->data);
+ clib_prefetch_store (p7->data);
}
to_next[0] = bi0 = from[0];
encaps_processing_v4 (node, b2, ip2, ip2_encap);
encaps_processing_v4 (node, b3, ip3, ip3_encap);
+ vnet_buffer (b0)->sw_if_index[VLIB_TX] = sl0->egress_fib_table;
+ vnet_buffer (b1)->sw_if_index[VLIB_TX] = sl1->egress_fib_table;
+ vnet_buffer (b2)->sw_if_index[VLIB_TX] = sl2->egress_fib_table;
+ vnet_buffer (b3)->sw_if_index[VLIB_TX] = sl3->egress_fib_table;
+
if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)))
{
if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
encaps_processing_v4 (node, b0, ip0, ip0_encap);
+ vnet_buffer (b0)->sw_if_index[VLIB_TX] = sl0->egress_fib_table;
+
if (PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_TRACE) &&
PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
{
ip6_sr_header_t *sr0, *sr1, *sr2, *sr3;
ip6_sr_policy_t *sp0, *sp1, *sp2, *sp3;
ip6_sr_sl_t *sl0, *sl1, *sl2, *sl3;
+ u32 flow_label0, flow_label1, flow_label2, flow_label3;
/* Prefetch next iteration. */
{
vlib_prefetch_buffer_header (p6, LOAD);
vlib_prefetch_buffer_header (p7, LOAD);
- CLIB_PREFETCH (p4->data, CLIB_CACHE_LINE_BYTES, STORE);
- CLIB_PREFETCH (p5->data, CLIB_CACHE_LINE_BYTES, STORE);
- CLIB_PREFETCH (p6->data, CLIB_CACHE_LINE_BYTES, STORE);
- CLIB_PREFETCH (p7->data, CLIB_CACHE_LINE_BYTES, STORE);
+ clib_prefetch_store (p4->data);
+ clib_prefetch_store (p5->data);
+ clib_prefetch_store (p6->data);
+ clib_prefetch_store (p7->data);
}
to_next[0] = bi0 = from[0];
sm->sw_iface_sr_policies[vnet_buffer
(b3)->sw_if_index
[VLIB_RX]]);
+ flow_label0 = l2_flow_hash (b0);
+ flow_label1 = l2_flow_hash (b1);
+ flow_label2 = l2_flow_hash (b2);
+ flow_label3 = l2_flow_hash (b3);
if (vec_len (sp0->segments_lists) == 1)
vnet_buffer (b0)->ip.adj_index[VLIB_TX] = sp0->segments_lists[0];
else
{
- vnet_buffer (b0)->ip.flow_hash = l2_flow_hash (b0);
+ vnet_buffer (b0)->ip.flow_hash = flow_label0;
vnet_buffer (b0)->ip.adj_index[VLIB_TX] =
sp0->segments_lists[(vnet_buffer (b0)->ip.flow_hash &
(vec_len (sp0->segments_lists) - 1))];
vnet_buffer (b1)->ip.adj_index[VLIB_TX] = sp1->segments_lists[1];
else
{
- vnet_buffer (b1)->ip.flow_hash = l2_flow_hash (b1);
+ vnet_buffer (b1)->ip.flow_hash = flow_label1;
vnet_buffer (b1)->ip.adj_index[VLIB_TX] =
sp1->segments_lists[(vnet_buffer (b1)->ip.flow_hash &
(vec_len (sp1->segments_lists) - 1))];
vnet_buffer (b2)->ip.adj_index[VLIB_TX] = sp2->segments_lists[2];
else
{
- vnet_buffer (b2)->ip.flow_hash = l2_flow_hash (b2);
+ vnet_buffer (b2)->ip.flow_hash = flow_label2;
vnet_buffer (b2)->ip.adj_index[VLIB_TX] =
sp2->segments_lists[(vnet_buffer (b2)->ip.flow_hash &
(vec_len (sp2->segments_lists) - 1))];
vnet_buffer (b3)->ip.adj_index[VLIB_TX] = sp3->segments_lists[3];
else
{
- vnet_buffer (b3)->ip.flow_hash = l2_flow_hash (b3);
+ vnet_buffer (b3)->ip.flow_hash = flow_label3;
vnet_buffer (b3)->ip.adj_index[VLIB_TX] =
sp3->segments_lists[(vnet_buffer (b3)->ip.flow_hash &
(vec_len (sp3->segments_lists) - 1))];
if (ip0->protocol == IP_PROTOCOL_IPV6_ROUTE)
{
sr0 = (void *) (ip0 + 1);
- sr0->protocol = IP_PROTOCOL_IP6_NONXT;
+ sr0->protocol = IP_PROTOCOL_IP6_ETHERNET;
}
else
- ip0->protocol = IP_PROTOCOL_IP6_NONXT;
+ ip0->protocol = IP_PROTOCOL_IP6_ETHERNET;
if (ip1->protocol == IP_PROTOCOL_IPV6_ROUTE)
{
sr1 = (void *) (ip1 + 1);
- sr1->protocol = IP_PROTOCOL_IP6_NONXT;
+ sr1->protocol = IP_PROTOCOL_IP6_ETHERNET;
}
else
- ip1->protocol = IP_PROTOCOL_IP6_NONXT;
+ ip1->protocol = IP_PROTOCOL_IP6_ETHERNET;
if (ip2->protocol == IP_PROTOCOL_IPV6_ROUTE)
{
sr2 = (void *) (ip2 + 1);
- sr2->protocol = IP_PROTOCOL_IP6_NONXT;
+ sr2->protocol = IP_PROTOCOL_IP6_ETHERNET;
}
else
- ip2->protocol = IP_PROTOCOL_IP6_NONXT;
+ ip2->protocol = IP_PROTOCOL_IP6_ETHERNET;
if (ip3->protocol == IP_PROTOCOL_IPV6_ROUTE)
{
sr3 = (void *) (ip3 + 1);
- sr3->protocol = IP_PROTOCOL_IP6_NONXT;
+ sr3->protocol = IP_PROTOCOL_IP6_ETHERNET;
}
else
- ip3->protocol = IP_PROTOCOL_IP6_NONXT;
-
- /* Which Traffic class and flow label do I set ? */
- //ip0->ip_version_traffic_class_and_flow_label = clib_host_to_net_u32(0|((6&0xF)<<28)|((ip0_encap->tos&0xFF)<<20));
+ ip3->protocol = IP_PROTOCOL_IP6_ETHERNET;
+
+ /* TC is set to 0 for all ethernet frames, should be taken from COS
+ * od DSCP of encapsulated packet in the future */
+ ip0->ip_version_traffic_class_and_flow_label = clib_host_to_net_u32 (
+ 0 | ((6 & 0xF) << 28) | ((0x00) << 20) | (flow_label0 & 0xffff));
+ ip1->ip_version_traffic_class_and_flow_label = clib_host_to_net_u32 (
+ 0 | ((6 & 0xF) << 28) | ((0x00) << 20) | (flow_label1 & 0xffff));
+ ip2->ip_version_traffic_class_and_flow_label = clib_host_to_net_u32 (
+ 0 | ((6 & 0xF) << 28) | ((0x00) << 20) | (flow_label2 & 0xffff));
+ ip3->ip_version_traffic_class_and_flow_label = clib_host_to_net_u32 (
+ 0 | ((6 & 0xF) << 28) | ((0x00) << 20) | (flow_label3 & 0xffff));
if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)))
{
ip6_sr_policy_t *sp0;
ip6_sr_sl_t *sl0;
u32 next0 = SR_POLICY_REWRITE_NEXT_IP6_LOOKUP;
+ u32 flow_label0;
bi0 = from[0];
to_next[0] = bi0;
sm->sw_iface_sr_policies[vnet_buffer
(b0)->sw_if_index
[VLIB_RX]]);
+ flow_label0 = l2_flow_hash (b0);
/* In case there is more than one SL, LB among them */
if (vec_len (sp0->segments_lists) == 1)
vnet_buffer (b0)->ip.adj_index[VLIB_TX] = sp0->segments_lists[0];
else
{
- vnet_buffer (b0)->ip.flow_hash = l2_flow_hash (b0);
+ vnet_buffer (b0)->ip.flow_hash = flow_label0;
vnet_buffer (b0)->ip.adj_index[VLIB_TX] =
sp0->segments_lists[(vnet_buffer (b0)->ip.flow_hash &
(vec_len (sp0->segments_lists) - 1))];
if (ip0->protocol == IP_PROTOCOL_IPV6_ROUTE)
{
sr0 = (void *) (ip0 + 1);
- sr0->protocol = IP_PROTOCOL_IP6_NONXT;
+ sr0->protocol = IP_PROTOCOL_IP6_ETHERNET;
}
else
- ip0->protocol = IP_PROTOCOL_IP6_NONXT;
+ ip0->protocol = IP_PROTOCOL_IP6_ETHERNET;
+
+ ip0->ip_version_traffic_class_and_flow_label = clib_host_to_net_u32 (
+ 0 | ((6 & 0xF) << 28) | ((0x00) << 20) | (flow_label0 & 0xffff));
if (PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_TRACE) &&
PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
vlib_prefetch_buffer_header (p6, LOAD);
vlib_prefetch_buffer_header (p7, LOAD);
- CLIB_PREFETCH (p4->data, CLIB_CACHE_LINE_BYTES, STORE);
- CLIB_PREFETCH (p5->data, CLIB_CACHE_LINE_BYTES, STORE);
- CLIB_PREFETCH (p6->data, CLIB_CACHE_LINE_BYTES, STORE);
- CLIB_PREFETCH (p7->data, CLIB_CACHE_LINE_BYTES, STORE);
+ clib_prefetch_store (p4->data);
+ clib_prefetch_store (p5->data);
+ clib_prefetch_store (p6->data);
+ clib_prefetch_store (p7->data);
}
to_next[0] = bi0 = from[0];
vlib_prefetch_buffer_header (p6, LOAD);
vlib_prefetch_buffer_header (p7, LOAD);
- CLIB_PREFETCH (p4->data, CLIB_CACHE_LINE_BYTES, STORE);
- CLIB_PREFETCH (p5->data, CLIB_CACHE_LINE_BYTES, STORE);
- CLIB_PREFETCH (p6->data, CLIB_CACHE_LINE_BYTES, STORE);
- CLIB_PREFETCH (p7->data, CLIB_CACHE_LINE_BYTES, STORE);
+ clib_prefetch_store (p4->data);
+ clib_prefetch_store (p5->data);
+ clib_prefetch_store (p6->data);
+ clib_prefetch_store (p7->data);
}
to_next[0] = bi0 = from[0];
* @brief Function BSID encapsulation
*/
static_always_inline void
-end_bsid_encaps_srh_processing (vlib_node_runtime_t * node,
- vlib_buffer_t * b0,
- ip6_header_t * ip0,
- ip6_sr_header_t * sr0, u32 * next0)
+end_bsid_encaps_srh_processing (vlib_node_runtime_t *node, vlib_buffer_t *b0,
+ ip6_header_t *ip0, ip6_sr_header_t *sr0,
+ u32 *next0, u8 policy_type)
{
ip6_address_t *new_dst0;
vlib_prefetch_buffer_header (p6, LOAD);
vlib_prefetch_buffer_header (p7, LOAD);
- CLIB_PREFETCH (p4->data, CLIB_CACHE_LINE_BYTES, STORE);
- CLIB_PREFETCH (p5->data, CLIB_CACHE_LINE_BYTES, STORE);
- CLIB_PREFETCH (p6->data, CLIB_CACHE_LINE_BYTES, STORE);
- CLIB_PREFETCH (p7->data, CLIB_CACHE_LINE_BYTES, STORE);
+ clib_prefetch_store (p4->data);
+ clib_prefetch_store (p5->data);
+ clib_prefetch_store (p6->data);
+ clib_prefetch_store (p7->data);
}
to_next[0] = bi0 = from[0];
ip6_ext_header_find (vm, b3, ip3_encap, IP_PROTOCOL_IPV6_ROUTE,
NULL);
- end_bsid_encaps_srh_processing (node, b0, ip0_encap, sr0, &next0);
- end_bsid_encaps_srh_processing (node, b1, ip1_encap, sr1, &next1);
- end_bsid_encaps_srh_processing (node, b2, ip2_encap, sr2, &next2);
- end_bsid_encaps_srh_processing (node, b3, ip3_encap, sr3, &next3);
+ end_bsid_encaps_srh_processing (node, b0, ip0_encap, sr0, &next0,
+ sl0->policy_type);
+ end_bsid_encaps_srh_processing (node, b1, ip1_encap, sr1, &next1,
+ sl1->policy_type);
+ end_bsid_encaps_srh_processing (node, b2, ip2_encap, sr2, &next2,
+ sl2->policy_type);
+ end_bsid_encaps_srh_processing (node, b3, ip3_encap, sr3, &next3,
+ sl3->policy_type);
clib_memcpy_fast (((u8 *) ip0_encap) - vec_len (sl0->rewrite),
sl0->rewrite, vec_len (sl0->rewrite));
ip2 = vlib_buffer_get_current (b2);
ip3 = vlib_buffer_get_current (b3);
- encaps_processing_v6 (node, b0, ip0, ip0_encap);
- encaps_processing_v6 (node, b1, ip1, ip1_encap);
- encaps_processing_v6 (node, b2, ip2, ip2_encap);
- encaps_processing_v6 (node, b3, ip3, ip3_encap);
+ encaps_processing_v6 (node, b0, ip0, ip0_encap, sl0->policy_type);
+ encaps_processing_v6 (node, b1, ip1, ip1_encap, sl1->policy_type);
+ encaps_processing_v6 (node, b2, ip2, ip2_encap, sl2->policy_type);
+ encaps_processing_v6 (node, b3, ip3, ip3_encap, sl3->policy_type);
if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)))
{
sr0 =
ip6_ext_header_find (vm, b0, ip0_encap, IP_PROTOCOL_IPV6_ROUTE,
NULL);
- end_bsid_encaps_srh_processing (node, b0, ip0_encap, sr0, &next0);
+ end_bsid_encaps_srh_processing (node, b0, ip0_encap, sr0, &next0,
+ sl0->policy_type);
clib_memcpy_fast (((u8 *) ip0_encap) - vec_len (sl0->rewrite),
sl0->rewrite, vec_len (sl0->rewrite));
ip0 = vlib_buffer_get_current (b0);
- encaps_processing_v6 (node, b0, ip0, ip0_encap);
+ encaps_processing_v6 (node, b0, ip0, ip0_encap, sl0->policy_type);
if (PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_TRACE) &&
PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
};
/* *INDENT-ON* */
+/*************************** SR Policy plugins ******************************/
+/**
+ * @brief SR Policy plugin registry
+ */
+int
+sr_policy_register_function (vlib_main_t * vm, u8 * fn_name,
+ u8 * keyword_str, u8 * def_str,
+ u8 * params_str, u8 prefix_length,
+ dpo_type_t * dpo,
+ format_function_t * ls_format,
+ unformat_function_t * ls_unformat,
+ sr_p_plugin_callback_t * creation_fn,
+ sr_p_plugin_callback_t * removal_fn)
+{
+ ip6_sr_main_t *sm = &sr_main;
+ uword *p;
+
+ sr_policy_fn_registration_t *plugin;
+
+ /* Did this function exist? If so update it */
+ p = hash_get_mem (sm->policy_plugin_functions_by_key, fn_name);
+ if (p)
+ {
+ plugin = pool_elt_at_index (sm->policy_plugin_functions, p[0]);
+ }
+ /* Else create a new one and set hash key */
+ else
+ {
+ pool_get (sm->policy_plugin_functions, plugin);
+ hash_set_mem (sm->policy_plugin_functions_by_key, fn_name,
+ plugin - sm->policy_plugin_functions);
+ }
+
+ clib_memset (plugin, 0, sizeof (*plugin));
+
+ plugin->sr_policy_function_number = (plugin - sm->policy_plugin_functions);
+ plugin->sr_policy_function_number += SR_BEHAVIOR_LAST;
+ plugin->prefix_length = prefix_length;
+ plugin->ls_format = ls_format;
+ plugin->ls_unformat = ls_unformat;
+ plugin->creation = creation_fn;
+ plugin->removal = removal_fn;
+ clib_memcpy (&plugin->dpo, dpo, sizeof (dpo_type_t));
+ plugin->function_name = format (0, "%s%c", fn_name, 0);
+ plugin->keyword_str = format (0, "%s%c", keyword_str, 0);
+ plugin->def_str = format (0, "%s%c", def_str, 0);
+ plugin->params_str = format (0, "%s%c", params_str, 0);
+
+ return plugin->sr_policy_function_number;
+}
+
+/**
+ * @brief CLI function to 'show' all available SR LocalSID behaviors
+ */
+static clib_error_t *
+show_sr_policy_behaviors_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ ip6_sr_main_t *sm = &sr_main;
+ sr_policy_fn_registration_t *plugin;
+ sr_policy_fn_registration_t **plugins_vec = 0;
+ int i;
+
+ vlib_cli_output (vm, "SR Policy behaviors:\n-----------------------\n\n");
+
+ /* *INDENT-OFF* */
+ pool_foreach (plugin, sm->policy_plugin_functions)
+ { vec_add1 (plugins_vec, plugin); }
+ /* *INDENT-ON* */
+
+ vlib_cli_output (vm, "Plugin behaviors:\n");
+ for (i = 0; i < vec_len (plugins_vec); i++)
+ {
+ plugin = plugins_vec[i];
+ vlib_cli_output (vm, "\t%s\t-> %s.\n", plugin->keyword_str,
+ plugin->def_str);
+ vlib_cli_output (vm, "\t\tParameters: '%s'\n", plugin->params_str);
+ }
+ return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (show_sr_policy_behaviors_command, static) = {
+ .path = "show sr policy behaviors",
+ .short_help = "show sr policy behaviors",
+ .function = show_sr_policy_behaviors_command_fn,
+};
+/* *INDENT-ON* */
+
/*************************** SR Segment Lists DPOs ****************************/
static u8 *
format_sr_segment_list_dpo (u8 * s, va_list * args)