*/
#include <vnet/dpo/dvr_dpo.h>
-#include <vnet/fib/ip4_fib.h>
-#include <vnet/fib/ip6_fib.h>
-#include <vnet/dpo/load_balance.h>
+#include <vnet/dpo/drop_dpo.h>
+#include <vnet/vxlan-gbp/vxlan_gbp_packet.h>
+#include <vnet/vxlan-gbp/vxlan_gbp.h>
#include <plugins/gbp/gbp.h>
+#include <plugins/gbp/gbp_policy.h>
#include <plugins/gbp/gbp_policy_dpo.h>
#include <plugins/gbp/gbp_recirc.h>
+#include <plugins/gbp/gbp_contract.h>
+#ifndef CLIB_MARCH_VARIANT
/**
* DPO pool
*/
-static gbp_policy_dpo_t *gbp_policy_dpo_pool;
+gbp_policy_dpo_t *gbp_policy_dpo_pool;
/**
* DPO type registered for these GBP FWD
*/
-static dpo_type_t gbp_policy_dpo_type;
-
-static inline gbp_policy_dpo_t *
-gbp_policy_dpo_get_i (index_t index)
-{
- return (pool_elt_at_index (gbp_policy_dpo_pool, index));
-}
-
-gbp_policy_dpo_t *
-gbp_policy_dpo_get (index_t index)
-{
- return (gbp_policy_dpo_get_i (index));
-}
+dpo_type_t gbp_policy_dpo_type;
static gbp_policy_dpo_t *
gbp_policy_dpo_alloc (void)
{
gbp_policy_dpo_t *gpd;
- pool_get (gbp_policy_dpo_pool, gpd);
+ pool_get_aligned_zero (gbp_policy_dpo_pool, gpd, CLIB_CACHE_LINE_BYTES);
return (gpd);
}
{
ASSERT (gbp_policy_dpo_type == dpo->dpoi_type);
- return (gbp_policy_dpo_get_i (dpo->dpoi_index));
+ return (gbp_policy_dpo_get (dpo->dpoi_index));
}
static inline index_t
void
gbp_policy_dpo_add_or_lock (dpo_proto_t dproto,
- epg_id_t epg, u32 sw_if_index, dpo_id_t * dpo)
+ gbp_scope_t scope,
+ sclass_t sclass, u32 sw_if_index, dpo_id_t * dpo)
{
gbp_policy_dpo_t *gpd;
dpo_id_t parent = DPO_INVALID;
gpd = gbp_policy_dpo_alloc ();
- clib_memset (gpd, 0, sizeof (*gpd));
gpd->gpd_proto = dproto;
gpd->gpd_sw_if_index = sw_if_index;
- gpd->gpd_epg = epg;
+ gpd->gpd_sclass = sclass;
+ gpd->gpd_scope = scope;
- /*
- * stack on the DVR DPO for the output interface
- */
- dvr_dpo_add_or_lock (sw_if_index, dproto, &parent);
+ if (~0 != sw_if_index)
+ {
+ /*
+ * stack on the DVR DPO for the output interface
+ */
+ dvr_dpo_add_or_lock (sw_if_index, dproto, &parent);
+ }
+ else
+ {
+ dpo_copy (&parent, drop_dpo_get (dproto));
+ }
dpo_stack (gbp_policy_dpo_type, dproto, &gpd->gpd_dpo, &parent);
-
dpo_set (dpo, gbp_policy_dpo_type, dproto, gbp_policy_dpo_get_index (gpd));
}
{
index_t index = va_arg (*ap, index_t);
u32 indent = va_arg (*ap, u32);
- gbp_policy_dpo_t *gpd = gbp_policy_dpo_get_i (index);
+ gbp_policy_dpo_t *gpd = gbp_policy_dpo_get (index);
vnet_main_t *vnm = vnet_get_main ();
- s = format (s, "gbp-policy-dpo: %U, epg:%d out:%U",
+ s = format (s, "gbp-policy-dpo: %U, scope:%d sclass:%d out:%U",
format_dpo_proto, gpd->gpd_proto,
- gpd->gpd_epg,
+ gpd->gpd_scope, (int) gpd->gpd_sclass,
format_vnet_sw_if_index_name, vnm, gpd->gpd_sw_if_index);
s = format (s, "\n%U", format_white_space, indent + 2);
s = format (s, "%U", format_dpo_id, &gpd->gpd_dpo, indent + 4);
return (s);
}
+/**
+ * Interpose a policy DPO
+ */
+static void
+gbp_policy_dpo_interpose (const dpo_id_t * original,
+ const dpo_id_t * parent, dpo_id_t * clone)
+{
+ gbp_policy_dpo_t *gpd, *gpd_clone;
+
+ gpd_clone = gbp_policy_dpo_alloc ();
+ gpd = gbp_policy_dpo_get (original->dpoi_index);
+
+ gpd_clone->gpd_proto = gpd->gpd_proto;
+ gpd_clone->gpd_scope = gpd->gpd_scope;
+ gpd_clone->gpd_sclass = gpd->gpd_sclass;
+ gpd_clone->gpd_sw_if_index = gpd->gpd_sw_if_index;
+
+ /*
+ * if no interface is provided, grab one from the parent
+ * on which we stack
+ */
+ if (~0 == gpd_clone->gpd_sw_if_index)
+ gpd_clone->gpd_sw_if_index = dpo_get_urpf (parent);
+
+ dpo_stack (gbp_policy_dpo_type,
+ gpd_clone->gpd_proto, &gpd_clone->gpd_dpo, parent);
+
+ dpo_set (clone,
+ gbp_policy_dpo_type,
+ gpd_clone->gpd_proto, gbp_policy_dpo_get_index (gpd_clone));
+}
+
const static dpo_vft_t gbp_policy_dpo_vft = {
.dv_lock = gbp_policy_dpo_lock,
.dv_unlock = gbp_policy_dpo_unlock,
.dv_format = format_gbp_policy_dpo,
.dv_get_urpf = gbp_policy_dpo_get_urpf,
+ .dv_mk_interpose = gbp_policy_dpo_interpose,
};
/**
}
VLIB_INIT_FUNCTION (gbp_policy_dpo_module_init);
-
-typedef struct gbp_policy_dpo_trace_t_
-{
- u32 src_epg;
- u32 dst_epg;
- u32 acl_index;
-} gbp_policy_dpo_trace_t;
+#endif /* CLIB_MARCH_VARIANT */
typedef enum
{
GBP_POLICY_N_NEXT,
} gbp_policy_next_t;
+always_inline u32
+gbp_rule_l3_redirect (const gbp_rule_t * gu, vlib_buffer_t * b0, int is_ip6)
+{
+ gbp_policy_node_t pnode;
+ const dpo_id_t *dpo;
+ dpo_proto_t dproto;
+
+ pnode = (is_ip6 ? GBP_POLICY_NODE_IP6 : GBP_POLICY_NODE_IP4);
+ dproto = (is_ip6 ? DPO_PROTO_IP6 : DPO_PROTO_IP4);
+ dpo = &gu->gu_dpo[pnode][dproto];
+
+ /* The flow hash is still valid as this is a IP packet being switched */
+ vnet_buffer (b0)->ip.adj_index[VLIB_TX] = dpo->dpoi_index;
+
+ return (dpo->dpoi_next_node);
+}
+
always_inline uword
gbp_policy_dpo_inline (vlib_main_t * vm,
vlib_node_runtime_t * node,
{
gbp_main_t *gm = &gbp_main;
u32 n_left_from, next_index, *from, *to_next;
+ u32 n_allow_intra, n_allow_a_bit, n_allow_sclass_1;
from = vlib_frame_vector_args (from_frame);
n_left_from = from_frame->n_vectors;
+ n_allow_intra = n_allow_a_bit = n_allow_sclass_1 = 0;
next_index = node->cached_next_index;
while (n_left_from > 0 && n_left_to_next > 0)
{
+ gbp_rule_action_t action0 = GBP_RULE_DENY;
+ u32 acl_match = ~0, rule_match = ~0;
const gbp_policy_dpo_t *gpd0;
- u32 bi0, next0;
+ gbp_contract_error_t err0;
gbp_contract_key_t key0;
- gbp_contract_value_t value0 = {
- .as_u64 = ~0,
- };
vlib_buffer_t *b0;
+ gbp_rule_t *rule0;
+ u32 bi0, next0;
bi0 = from[0];
to_next[0] = bi0;
next0 = GBP_POLICY_DROP;
b0 = vlib_get_buffer (vm, bi0);
- gpd0 =
- gbp_policy_dpo_get_i (vnet_buffer (b0)->ip.adj_index[VLIB_TX]);
+
+ gpd0 = gbp_policy_dpo_get (vnet_buffer (b0)->ip.adj_index[VLIB_TX]);
vnet_buffer (b0)->ip.adj_index[VLIB_TX] = gpd0->gpd_dpo.dpoi_index;
- key0.gck_src = vnet_buffer2 (b0)->gbp.src_epg;
- key0.gck_dst = gpd0->gpd_epg;
+ /*
+ * Reflection check; in and out on an ivxlan tunnel
+ */
+ if ((~0 != vxlan_gbp_tunnel_by_sw_if_index (gpd0->gpd_sw_if_index))
+ && (vnet_buffer2 (b0)->gbp.flags & VXLAN_GBP_GPFLAGS_R))
+ {
+ goto trace;
+ }
- if (EPG_INVALID != key0.gck_src)
+ if (vnet_buffer2 (b0)->gbp.flags & VXLAN_GBP_GPFLAGS_A)
{
- if (PREDICT_FALSE (key0.gck_src == key0.gck_dst))
- {
- /*
- * intra-epg allowed
- */
- next0 = gpd0->gpd_dpo.dpoi_next_node;
- }
- else
- {
- value0.as_u64 = gbp_acl_lookup (&key0);
-
- if (~0 != value0.gc_lc_index)
- {
- fa_5tuple_opaque_t pkt_5tuple0;
- u8 action0 = 0;
- u32 acl_pos_p0, acl_match_p0;
- u32 rule_match_p0, trace_bitmap0;
- /*
- * tests against the ACL
- */
- acl_plugin_fill_5tuple_inline (gm->
- acl_plugin.p_acl_main,
- value0.gc_lc_index, b0,
- is_ip6,
- /* is_input */ 1,
- /* is_l2_path */ 0,
- &pkt_5tuple0);
- acl_plugin_match_5tuple_inline (gm->
- acl_plugin.p_acl_main,
- value0.gc_lc_index,
- &pkt_5tuple0, is_ip6,
- &action0, &acl_pos_p0,
- &acl_match_p0,
- &rule_match_p0,
- &trace_bitmap0);
-
- if (action0 > 0)
- next0 = gpd0->gpd_dpo.dpoi_next_node;
- }
- }
+ next0 = gpd0->gpd_dpo.dpoi_next_node;
+ key0.as_u64 = ~0;
+ n_allow_a_bit++;
+ goto trace;
}
- else
+
+ /* zero out the key to ensure the pad space is clear */
+ key0.as_u64 = 0;
+ key0.gck_src = vnet_buffer2 (b0)->gbp.sclass;
+
+ if (SCLASS_INVALID == key0.gck_src)
{
/*
* the src EPG is not set when the packet arrives on an EPG
* uplink interface and we do not need to apply policy
*/
next0 = gpd0->gpd_dpo.dpoi_next_node;
+ goto trace;
}
- if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
- {
- gbp_policy_dpo_trace_t *tr;
+ key0.gck_scope = gpd0->gpd_scope;
+ key0.gck_dst = gpd0->gpd_sclass;
- tr = vlib_add_trace (vm, node, b0, sizeof (*tr));
- tr->src_epg = key0.gck_src;
- tr->dst_epg = key0.gck_dst;
- tr->acl_index = value0.gc_acl_index;
+ action0 =
+ gbp_contract_apply (vm, gm, &key0, b0, &rule0, &n_allow_intra,
+ &n_allow_sclass_1, &acl_match, &rule_match,
+ &err0,
+ is_ip6 ? GBP_CONTRACT_APPLY_IP6 :
+ GBP_CONTRACT_APPLY_IP4);
+ switch (action0)
+ {
+ case GBP_RULE_PERMIT:
+ next0 = gpd0->gpd_dpo.dpoi_next_node;
+ vnet_buffer2 (b0)->gbp.flags |= VXLAN_GBP_GPFLAGS_A;
+ break;
+ case GBP_RULE_REDIRECT:
+ next0 = gbp_rule_l3_redirect (rule0, b0, is_ip6);
+ vnet_buffer2 (b0)->gbp.flags |= VXLAN_GBP_GPFLAGS_A;
+ break;
+ case GBP_RULE_DENY:
+ next0 = GBP_POLICY_DROP;
+ b0->error = node->errors[err0];
+ break;
}
+ trace:
+ gbp_policy_trace (vm, node, b0, &key0, action0, acl_match,
+ rule_match);
+
vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
n_left_to_next, bi0, next0);
}
vlib_put_next_frame (vm, node, next_index, n_left_to_next);
}
- return from_frame->n_vectors;
-}
-
-static u8 *
-format_gbp_policy_dpo_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 *);
- gbp_policy_dpo_trace_t *t = va_arg (*args, gbp_policy_dpo_trace_t *);
-
- s = format (s, " src-epg:%d dst-epg:%d acl-index:%d",
- t->src_epg, t->dst_epg, t->acl_index);
- return s;
+ vlib_node_increment_counter (vm, node->node_index,
+ GBP_CONTRACT_ERROR_ALLOW_INTRA, n_allow_intra);
+ vlib_node_increment_counter (vm, node->node_index,
+ GBP_CONTRACT_ERROR_ALLOW_A_BIT, n_allow_a_bit);
+ vlib_node_increment_counter (vm, node->node_index,
+ GBP_CONTRACT_ERROR_ALLOW_SCLASS_1,
+ n_allow_sclass_1);
+ return from_frame->n_vectors;
}
-static uword
-ip4_gbp_policy_dpo (vlib_main_t * vm,
- vlib_node_runtime_t * node, vlib_frame_t * from_frame)
+VLIB_NODE_FN (ip4_gbp_policy_dpo_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * from_frame)
{
return (gbp_policy_dpo_inline (vm, node, from_frame, 0));
}
-static uword
-ip6_gbp_policy_dpo (vlib_main_t * vm,
- vlib_node_runtime_t * node, vlib_frame_t * from_frame)
+VLIB_NODE_FN (ip6_gbp_policy_dpo_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * from_frame)
{
return (gbp_policy_dpo_inline (vm, node, from_frame, 1));
}
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (ip4_gbp_policy_dpo_node) = {
- .function = ip4_gbp_policy_dpo,
.name = "ip4-gbp-policy-dpo",
.vector_size = sizeof (u32),
- .format_trace = format_gbp_policy_dpo_trace,
+ .format_trace = format_gbp_policy_trace,
+
+ .n_errors = ARRAY_LEN(gbp_contract_error_strings),
+ .error_strings = gbp_contract_error_strings,
+
.n_next_nodes = GBP_POLICY_N_NEXT,
.next_nodes =
{
}
};
VLIB_REGISTER_NODE (ip6_gbp_policy_dpo_node) = {
- .function = ip6_gbp_policy_dpo,
.name = "ip6-gbp-policy-dpo",
.vector_size = sizeof (u32),
- .format_trace = format_gbp_policy_dpo_trace,
+ .format_trace = format_gbp_policy_trace,
+
+ .n_errors = ARRAY_LEN(gbp_contract_error_strings),
+ .error_strings = gbp_contract_error_strings,
+
.n_next_nodes = GBP_POLICY_N_NEXT,
.next_nodes =
{
[GBP_POLICY_DROP] = "ip6-drop",
}
};
-
-VLIB_NODE_FUNCTION_MULTIARCH (ip4_gbp_policy_dpo_node, ip4_gbp_policy_dpo)
-VLIB_NODE_FUNCTION_MULTIARCH (ip6_gbp_policy_dpo_node, ip6_gbp_policy_dpo)
-/* *INDENT-ON* */
-
- /**
- * per-packet trace data
- */
-typedef struct gbp_classify_trace_t_
-{
- /* per-pkt trace data */
- epg_id_t src_epg;
-} gbp_classify_trace_t;
-
-typedef enum gbp_lpm_classify_next_t_
-{
- GPB_LPM_CLASSIFY_DROP,
-} gbp_lpm_classify_next_t;
-
-/*
- * Determine the SRC EPG from a LPM
- */
-always_inline uword
-gbp_lpm_classify_inline (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame, fib_protocol_t fproto)
-{
- u32 n_left_from, *from, *to_next;
- u32 next_index;
-
- next_index = 0;
- n_left_from = frame->n_vectors;
- from = vlib_frame_vector_args (frame);
-
- while (n_left_from > 0)
- {
- u32 n_left_to_next;
-
- vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
-
- while (n_left_from > 0 && n_left_to_next > 0)
- {
- u32 bi0, sw_if_index0, fib_index0, lbi0;
- gbp_lpm_classify_next_t next0;
- const gbp_policy_dpo_t *gpd0;
- const gbp_recirc_t *gr0;
- const dpo_id_t *dpo0;
- load_balance_t *lb0;
- ip4_header_t *ip4_0;
- ip6_header_t *ip6_0;
- vlib_buffer_t *b0;
- epg_id_t src_epg0;
-
- bi0 = from[0];
- to_next[0] = bi0;
- from += 1;
- to_next += 1;
- n_left_from -= 1;
- n_left_to_next -= 1;
- next0 = GPB_LPM_CLASSIFY_DROP;
-
- b0 = vlib_get_buffer (vm, bi0);
-
- sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
- gr0 = gbp_recirc_get (sw_if_index0);
- fib_index0 = gr0->gr_fib_index[fproto];
-
- if (FIB_PROTOCOL_IP4 == fproto)
- {
- ip4_0 = vlib_buffer_get_current (b0);
- lbi0 = ip4_fib_forwarding_lookup (fib_index0,
- &ip4_0->src_address);
- }
- else
- {
- ip6_0 = vlib_buffer_get_current (b0);
- lbi0 = ip6_fib_table_fwding_lookup (&ip6_main, fib_index0,
- &ip6_0->src_address);
- }
-
- lb0 = load_balance_get (lbi0);
- dpo0 = load_balance_get_bucket_i (lb0, 0);
-
- if (gbp_policy_dpo_type == dpo0->dpoi_type)
- {
- gpd0 = gbp_policy_dpo_get_i (dpo0->dpoi_index);
- src_epg0 = gpd0->gpd_epg;
- vnet_feature_next (&next0, b0);
- }
- else
- {
- /* could not classify => drop */
- src_epg0 = 0;
- }
-
- vnet_buffer2 (b0)->gbp.src_epg = src_epg0;
-
- if (PREDICT_FALSE ((b0->flags & VLIB_BUFFER_IS_TRACED)))
- {
- gbp_classify_trace_t *t =
- vlib_add_trace (vm, node, b0, sizeof (*t));
- t->src_epg = src_epg0;
- }
-
- vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
- to_next, n_left_to_next,
- bi0, next0);
- }
-
- vlib_put_next_frame (vm, node, next_index, n_left_to_next);
- }
-
- return frame->n_vectors;
-}
-
-static uword
-gbp_ip4_lpm_classify (vlib_main_t * vm,
- vlib_node_runtime_t * node, vlib_frame_t * frame)
-{
- return (gbp_lpm_classify_inline (vm, node, frame, FIB_PROTOCOL_IP4));
-}
-
-static uword
-gbp_ip6_lpm_classify (vlib_main_t * vm,
- vlib_node_runtime_t * node, vlib_frame_t * frame)
-{
- return (gbp_lpm_classify_inline (vm, node, frame, FIB_PROTOCOL_IP6));
-}
-
- /* packet trace format function */
-static u8 *
-format_gbp_classify_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 *);
- gbp_classify_trace_t *t = va_arg (*args, gbp_classify_trace_t *);
-
- s = format (s, "src-epg:%d", t->src_epg);
-
- return s;
-}
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (gbp_ip4_lpm_classify_node) = {
- .function = gbp_ip4_lpm_classify,
- .name = "ip4-gbp-lpm-classify",
- .vector_size = sizeof (u32),
- .format_trace = format_gbp_classify_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
-
- .n_errors = 0,
- .n_next_nodes = 1,
- .next_nodes = {
- [GPB_LPM_CLASSIFY_DROP] = "ip4-drop"
- },
-};
-
-VLIB_NODE_FUNCTION_MULTIARCH (gbp_ip4_lpm_classify_node, gbp_ip4_lpm_classify);
-
-VLIB_REGISTER_NODE (gbp_ip6_lpm_classify_node) = {
- .function = gbp_ip6_lpm_classify,
- .name = "ip6-gbp-lpm-classify",
- .vector_size = sizeof (u32),
- .format_trace = format_gbp_classify_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
-
- .n_errors = 0,
- .n_next_nodes = 1,
- .next_nodes = {
- [GPB_LPM_CLASSIFY_DROP] = "ip6-drop"
- },
-};
-
-VLIB_NODE_FUNCTION_MULTIARCH (gbp_ip6_lpm_classify_node, gbp_ip6_lpm_classify);
-
-VNET_FEATURE_INIT (gbp_ip4_lpm_classify_feat_node, static) =
-{
- .arc_name = "ip4-unicast",
- .node_name = "ip4-gbp-lpm-classify",
- .runs_before = VNET_FEATURES ("nat44-out2in"),
-};
-VNET_FEATURE_INIT (gbp_ip6_lpm_classify_feat_node, static) =
-{
- .arc_name = "ip6-unicast",
- .node_name = "ip6-gbp-lpm-classify",
- .runs_before = VNET_FEATURES ("nat66-out2in"),
-};
-
/* *INDENT-ON* */
/*
Code Review / vpp.git / blobdiff