--- /dev/null
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <ila/ila.h>
+#include <vnet/plugin/plugin.h>
+
+static ila_main_t ila_main;
+
+#define ILA_TABLE_DEFAULT_HASH_NUM_BUCKETS (64 * 1024)
+#define ILA_TABLE_DEFAULT_HASH_MEMORY_SIZE (32<<20)
+
+#define foreach_ila_error \
+ _(NONE, "valid ILA packets")
+
+typedef enum {
+#define _(sym,str) ILA_ERROR_##sym,
+ foreach_ila_error
+#undef _
+ ILA_N_ERROR,
+} ila_error_t;
+
+static char *ila_error_strings[] = {
+#define _(sym,string) string,
+ foreach_ila_error
+#undef _
+};
+
+typedef enum {
+ ILA_ILA2SIR_NEXT_IP6_REWRITE,
+ ILA_ILA2SIR_NEXT_DROP,
+ ILA_ILA2SIR_N_NEXT,
+} ila_ila2sir_next_t;
+
+typedef struct {
+ u32 ila_index;
+ ip6_address_t initial_dst;
+ u32 adj_index;
+} ila_ila2sir_trace_t;
+
+static ila_entry_t ila_default_entry = {
+ .csum_mode = ILA_CSUM_MODE_NO_ACTION,
+ .type = ILA_TYPE_IID,
+};
+
+u8 *
+format_half_ip6_address (u8 * s, va_list * va)
+{
+ u64 v = clib_net_to_host_u64 (va_arg (*va, u64));
+
+ return format (s, "%04x:%04x:%04x:%04x",
+ v >> 48, (v >> 32) & 0xffff, (v >> 16) & 0xffff, v & 0xffff);
+
+}
+
+static u8 *
+format_csum_mode (u8 * s, va_list * va)
+{
+ ila_csum_mode_t csum_mode = va_arg (*va, ila_csum_mode_t);
+ char *txt;
+
+ switch (csum_mode)
+ {
+#define _(i,n,st) \
+ case ILA_CSUM_MODE_##i: \
+ txt = st; \
+ break;
+ ila_csum_foreach_type
+#undef _
+ default:
+ txt = "(unknown)";
+ break;
+ }
+ return format (s, txt);
+}
+
+u8 *
+format_ila_type (u8 * s, va_list * args)
+{
+ ila_type_t t = va_arg (*args, ila_type_t);
+#define _(i,n,st) \
+ if (t == ILA_TYPE_##i) \
+ return format(s, st);
+ ila_foreach_type
+#undef _
+ return format (s, "invalid type");
+}
+
+static u8 *
+format_ila_entry (u8 * s, va_list * va)
+{
+ vnet_main_t *vnm = va_arg (*va, vnet_main_t *);
+ ila_entry_t *e = va_arg (*va, ila_entry_t *);
+
+ if (!e)
+ {
+ return format (s, "%-15s%=40s%=40s%+16s%+18s", "Type", "SIR Address",
+ "ILA Address", "Adjacency Index", "Checksum Mode");
+
+ }
+ else if (vnm)
+ {
+ if (e->ila_adj_index == ~0)
+ {
+ return format (s, "%-15U%=40U%=40U%16s%18U",
+ format_ila_type, e->type,
+ format_ip6_address, &e->sir_address,
+ format_ip6_address, &e->ila_address,
+ "n/a", format_csum_mode, e->csum_mode);
+ }
+ else
+ {
+ return format (s, "%-15U%=40U%=40U%16d%18U",
+ format_ila_type, e->type,
+ format_ip6_address, &e->sir_address,
+ format_ip6_address, &e->ila_address,
+ e->ila_adj_index, format_csum_mode, e->csum_mode);
+ }
+ }
+
+ return NULL;
+}
+
+u8 *
+format_ila_ila2sir_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 *);
+ ila_ila2sir_trace_t *t = va_arg (*args, ila_ila2sir_trace_t *);
+ return format (s,
+ "ILA -> SIR adj index: %d entry index: %d initial_dst: %U",
+ t->adj_index, t->ila_index, format_ip6_address,
+ &t->initial_dst);
+}
+
+static uword
+unformat_ila_type (unformat_input_t * input, va_list * args)
+{
+ ila_type_t *result = va_arg (*args, ila_type_t *);
+#define _(i,n,s) \
+ if (unformat(input, s)) \
+ { \
+ *result = ILA_TYPE_##i; \
+ return 1;\
+ }
+
+ ila_foreach_type
+#undef _
+ return 0;
+}
+
+static uword
+unformat_ila_csum_mode (unformat_input_t * input, va_list * args)
+{
+ ila_csum_mode_t *result = va_arg (*args, ila_csum_mode_t *);
+ if (unformat (input, "none") || unformat (input, "no-action"))
+ {
+ *result = ILA_CSUM_MODE_NO_ACTION;
+ return 1;
+ }
+ if (unformat (input, "neutral-map"))
+ {
+ *result = ILA_CSUM_MODE_NEUTRAL_MAP;
+ return 1;
+ }
+ if (unformat (input, "adjust-transport"))
+ {
+ *result = ILA_CSUM_MODE_ADJUST_TRANSPORT;
+ return 1;
+ }
+ return 0;
+}
+
+static uword
+unformat_half_ip6_address (unformat_input_t * input, va_list * args)
+{
+ u64 *result = va_arg (*args, u64 *);
+ u32 a[4];
+
+ if (!unformat (input, "%x:%x:%x:%x", &a[0], &a[1], &a[2], &a[3]))
+ return 0;
+
+ if (a[0] > 0xFFFF || a[1] > 0xFFFF || a[2] > 0xFFFF || a[3] > 0xFFFF)
+ return 0;
+
+ *result = clib_host_to_net_u64 ((((u64) a[0]) << 48) |
+ (((u64) a[1]) << 32) |
+ (((u64) a[2]) << 16) | (((u64) a[3])));
+
+ return 1;
+}
+
+static vlib_node_registration_t ila_ila2sir_node;
+
+static uword
+ila_ila2sir (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
+{
+ ip6_main_t *im = &ip6_main;
+ ip_lookup_main_t *lm = &im->lookup_main;
+ u32 n_left_from, *from, next_index, *to_next, n_left_to_next;
+ ila_main_t *ilm = &ila_main;
+
+ from = vlib_frame_vector_args (frame);
+ n_left_from = frame->n_vectors;
+ next_index = node->cached_next_index;
+
+ while (n_left_from > 0)
+ {
+ vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
+
+ while (n_left_from >= 4 && n_left_to_next >= 2)
+ {
+ u32 pi0, pi1;
+ vlib_buffer_t *p0, *p1;
+ ip_adjacency_t *adj0, *adj1;
+ ila_entry_t *ie0, *ie1;
+ ip6_header_t *ip60, *ip61;
+ ila_adj_data_t *ad0, *ad1;
+
+ {
+ vlib_buffer_t *p2, *p3;
+
+ p2 = vlib_get_buffer (vm, from[2]);
+ p3 = vlib_get_buffer (vm, from[3]);
+
+ vlib_prefetch_buffer_header (p2, LOAD);
+ vlib_prefetch_buffer_header (p3, LOAD);
+ CLIB_PREFETCH (p2->data, sizeof (ip6_header_t), LOAD);
+ CLIB_PREFETCH (p3->data, sizeof (ip6_header_t), LOAD);
+ }
+
+ pi0 = to_next[0] = from[0];
+ pi1 = to_next[1] = from[1];
+ from += 2;
+ n_left_from -= 2;
+ to_next += 2;
+ n_left_to_next -= 2;
+
+ p0 = vlib_get_buffer (vm, pi0);
+ p1 = vlib_get_buffer (vm, pi1);
+ ip60 = vlib_buffer_get_current (p0);
+ ip61 = vlib_buffer_get_current (p1);
+ adj0 =
+ ip_get_adjacency (lm, vnet_buffer (p0)->ip.adj_index[VLIB_TX]);
+ adj1 =
+ ip_get_adjacency (lm, vnet_buffer (p1)->ip.adj_index[VLIB_TX]);
+ ad0 = (ila_adj_data_t *) & adj0->opaque;
+ ad1 = (ila_adj_data_t *) & adj1->opaque;
+ ie0 = pool_elt_at_index (ilm->entries, ad0->entry_index);
+ ie1 = pool_elt_at_index (ilm->entries, ad1->entry_index);
+
+ if (PREDICT_FALSE (p0->flags & VLIB_BUFFER_IS_TRACED))
+ {
+ ila_ila2sir_trace_t *tr =
+ vlib_add_trace (vm, node, p0, sizeof (*tr));
+ tr->ila_index = ie0 ? (ie0 - ilm->entries) : ~0;
+ tr->initial_dst = ip60->dst_address;
+ tr->adj_index = vnet_buffer (p0)->ip.adj_index[VLIB_TX];
+ }
+
+ if (PREDICT_FALSE (p1->flags & VLIB_BUFFER_IS_TRACED))
+ {
+ ila_ila2sir_trace_t *tr =
+ vlib_add_trace (vm, node, p1, sizeof (*tr));
+ tr->ila_index = ie1 ? (ie1 - ilm->entries) : ~0;
+ tr->initial_dst = ip61->dst_address;
+ tr->adj_index = vnet_buffer (p1)->ip.adj_index[VLIB_TX];
+ }
+
+ ip60->dst_address.as_u64[0] = ie0->sir_address.as_u64[0];
+ ip60->dst_address.as_u64[1] = ie0->sir_address.as_u64[1];
+ ip61->dst_address.as_u64[0] = ie1->sir_address.as_u64[0];
+ ip61->dst_address.as_u64[1] = ie1->sir_address.as_u64[1];
+
+ vnet_buffer (p0)->ip.adj_index[VLIB_TX] = ie0->ila_adj_index;
+ vnet_buffer (p1)->ip.adj_index[VLIB_TX] = ie1->ila_adj_index;
+
+ vlib_validate_buffer_enqueue_x2 (vm, node, next_index, to_next,
+ n_left_to_next, pi0, pi1,
+ ILA_ILA2SIR_NEXT_IP6_REWRITE,
+ ILA_ILA2SIR_NEXT_IP6_REWRITE);
+ }
+
+ /* Single loop */
+ while (n_left_from > 0 && n_left_to_next > 0)
+ {
+ u32 pi0;
+ vlib_buffer_t *p0;
+ ip_adjacency_t *adj0;
+ ila_adj_data_t *ad0;
+ ila_entry_t *ie0;
+ ip6_header_t *ip60;
+
+ pi0 = to_next[0] = from[0];
+ from += 1;
+ n_left_from -= 1;
+ to_next += 1;
+ n_left_to_next -= 1;
+
+ p0 = vlib_get_buffer (vm, pi0);
+ ip60 = vlib_buffer_get_current (p0);
+ adj0 =
+ ip_get_adjacency (lm, vnet_buffer (p0)->ip.adj_index[VLIB_TX]);
+ ad0 = (ila_adj_data_t *) & adj0->opaque;
+ ie0 = pool_elt_at_index (ilm->entries, ad0->entry_index);
+
+ if (PREDICT_FALSE (p0->flags & VLIB_BUFFER_IS_TRACED))
+ {
+ ila_ila2sir_trace_t *tr =
+ vlib_add_trace (vm, node, p0, sizeof (*tr));
+ tr->ila_index = ie0 ? (ie0 - ilm->entries) : ~0;
+ tr->initial_dst = ip60->dst_address;
+ tr->adj_index = vnet_buffer (p0)->ip.adj_index[VLIB_TX];
+ }
+
+ ip60->dst_address.as_u64[0] = ie0->sir_address.as_u64[0];
+ ip60->dst_address.as_u64[1] = ie0->sir_address.as_u64[1];
+ vnet_buffer (p0)->ip.adj_index[VLIB_TX] = ie0->ila_adj_index;
+
+ vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
+ n_left_to_next, pi0,
+ ILA_ILA2SIR_NEXT_IP6_REWRITE);
+ }
+ vlib_put_next_frame (vm, node, next_index, n_left_to_next);
+ }
+
+ return frame->n_vectors;
+}
+
+VLIB_REGISTER_NODE (ila_ila2sir_node, static) =
+{
+ .function = ila_ila2sir,.name = "ila-to-sir",.vector_size =
+ sizeof (u32),.format_trace = format_ila_ila2sir_trace,.n_errors =
+ ILA_N_ERROR,.error_strings = ila_error_strings,.n_next_nodes =
+ ILA_ILA2SIR_N_NEXT,.next_nodes =
+ {
+ [ILA_ILA2SIR_NEXT_IP6_REWRITE] = "ip6-rewrite",
+ [ILA_ILA2SIR_NEXT_DROP] = "error-drop"}
+,};
+
+typedef enum
+{
+ ILA_SIR2ILA_NEXT_DROP,
+ ILA_SIR2ILA_N_NEXT,
+} ila_sir2ila_next_t;
+
+typedef struct
+{
+ u32 ila_index;
+ ip6_address_t initial_dst;
+} ila_sir2ila_trace_t;
+
+u8 *
+format_ila_sir2ila_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 *);
+ ila_sir2ila_trace_t *t = va_arg (*args, ila_sir2ila_trace_t *);
+
+ return format (s, "SIR -> ILA entry index: %d initial_dst: %U",
+ t->ila_index, format_ip6_address, &t->initial_dst);
+}
+
+static vlib_node_registration_t ila_sir2ila_node;
+
+static uword
+ila_sir2ila (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
+{
+ ip6_main_t *im = &ip6_main;
+ ip_lookup_main_t *lm = &im->lookup_main;
+ ip_config_main_t *cm = &lm->rx_config_mains[VNET_UNICAST];
+ u32 n_left_from, *from, next_index, *to_next, n_left_to_next;
+ ila_main_t *ilm = &ila_main;
+
+ from = vlib_frame_vector_args (frame);
+ n_left_from = frame->n_vectors;
+ next_index = node->cached_next_index;
+
+ while (n_left_from > 0)
+ {
+ vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
+
+ while (n_left_from >= 4 && n_left_to_next >= 2)
+ {
+ u32 pi0, pi1;
+ vlib_buffer_t *p0, *p1;
+ ip6_header_t *ip60, *ip61;
+ u32 next0 = ILA_SIR2ILA_NEXT_DROP;
+ u32 next1 = ILA_SIR2ILA_NEXT_DROP;
+ BVT (clib_bihash_kv) kv0, value0;
+ BVT (clib_bihash_kv) kv1, value1;
+ ila_entry_t *ie0 = &ila_default_entry;
+ ila_entry_t *ie1 = &ila_default_entry;
+
+ {
+ vlib_buffer_t *p2, *p3;
+
+ p2 = vlib_get_buffer (vm, from[2]);
+ p3 = vlib_get_buffer (vm, from[3]);
+
+ vlib_prefetch_buffer_header (p2, LOAD);
+ vlib_prefetch_buffer_header (p3, LOAD);
+ CLIB_PREFETCH (p2->data, sizeof (ip6_header_t), LOAD);
+ CLIB_PREFETCH (p3->data, sizeof (ip6_header_t), LOAD);
+ }
+
+ pi0 = to_next[0] = from[0];
+ pi1 = to_next[1] = from[1];
+ from += 2;
+ n_left_from -= 2;
+ to_next += 2;
+ n_left_to_next -= 2;
+
+ p0 = vlib_get_buffer (vm, pi0);
+ p1 = vlib_get_buffer (vm, pi1);
+ ip60 = vlib_buffer_get_current (p0);
+ ip61 = vlib_buffer_get_current (p1);
+ kv0.key[0] = ip60->dst_address.as_u64[0];
+ kv0.key[1] = ip60->dst_address.as_u64[1];
+ kv0.key[2] = 0;
+ kv1.key[0] = ip61->dst_address.as_u64[0];
+ kv1.key[1] = ip61->dst_address.as_u64[1];
+ kv1.key[2] = 0;
+
+ if ((BV (clib_bihash_search)
+ (&ilm->id_to_entry_table, &kv0, &value0)) == 0)
+ ie0 = &ilm->entries[value0.value];
+
+ if ((BV (clib_bihash_search)
+ (&ilm->id_to_entry_table, &kv1, &value1)) == 0)
+ ie1 = &ilm->entries[value1.value];
+
+ if (PREDICT_FALSE (p0->flags & VLIB_BUFFER_IS_TRACED))
+ {
+ ila_sir2ila_trace_t *tr =
+ vlib_add_trace (vm, node, p0, sizeof (*tr));
+ tr->ila_index =
+ (ie0 != &ila_default_entry) ? (ie0 - ilm->entries) : ~0;
+ tr->initial_dst = ip60->dst_address;
+ }
+
+ if (PREDICT_FALSE (p1->flags & VLIB_BUFFER_IS_TRACED))
+ {
+ ila_sir2ila_trace_t *tr =
+ vlib_add_trace (vm, node, p1, sizeof (*tr));
+ tr->ila_index =
+ (ie1 != &ila_default_entry) ? (ie1 - ilm->entries) : ~0;
+ tr->initial_dst = ip61->dst_address;
+ }
+
+ ip60->dst_address.as_u64[0] = ie0->ila_address.as_u64[0];
+ ip60->dst_address.as_u64[1] = ie0->ila_address.as_u64[1];
+ ip61->dst_address.as_u64[0] = ie1->ila_address.as_u64[0];
+ ip61->dst_address.as_u64[1] = ie1->ila_address.as_u64[1];
+
+ vnet_get_config_data (&cm->config_main,
+ &p0->current_config_index, &next0, 0);
+
+ vnet_get_config_data (&cm->config_main,
+ &p1->current_config_index, &next1, 0);
+
+ vlib_validate_buffer_enqueue_x2 (vm, node, next_index, to_next,
+ n_left_to_next, pi0, pi1, next0,
+ next1);
+ }
+
+ /* Single loop */
+ while (n_left_from > 0 && n_left_to_next > 0)
+ {
+ u32 pi0;
+ vlib_buffer_t *p0;
+ ip6_header_t *ip60;
+ u32 next0 = ILA_SIR2ILA_NEXT_DROP;
+ BVT (clib_bihash_kv) kv0, value0;
+ ila_entry_t *ie0 = &ila_default_entry;
+
+ pi0 = to_next[0] = from[0];
+ from += 1;
+ n_left_from -= 1;
+ to_next += 1;
+ n_left_to_next -= 1;
+
+ p0 = vlib_get_buffer (vm, pi0);
+ ip60 = vlib_buffer_get_current (p0);
+ kv0.key[0] = ip60->dst_address.as_u64[0];
+ kv0.key[1] = ip60->dst_address.as_u64[1];
+ kv0.key[2] = 0;
+
+ if ((BV (clib_bihash_search)
+ (&ilm->id_to_entry_table, &kv0, &value0)) == 0)
+ ie0 = &ilm->entries[value0.value];
+
+ if (PREDICT_FALSE (p0->flags & VLIB_BUFFER_IS_TRACED))
+ {
+ ila_sir2ila_trace_t *tr =
+ vlib_add_trace (vm, node, p0, sizeof (*tr));
+ tr->ila_index =
+ (ie0 != &ila_default_entry) ? (ie0 - ilm->entries) : ~0;
+ tr->initial_dst = ip60->dst_address;
+ }
+
+ //This operation should do everything for any type (except vnid4 obviously)
+ ip60->dst_address.as_u64[0] = ie0->ila_address.as_u64[0];
+ ip60->dst_address.as_u64[1] = ie0->ila_address.as_u64[1];
+
+ vnet_get_config_data (&cm->config_main,
+ &p0->current_config_index, &next0, 0);
+
+ vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
+ n_left_to_next, pi0, next0);
+ }
+ vlib_put_next_frame (vm, node, next_index, n_left_to_next);
+ }
+
+ return frame->n_vectors;
+}
+
+VLIB_REGISTER_NODE (ila_sir2ila_node, static) =
+{
+ .function = ila_sir2ila,.name = "sir-to-ila",.vector_size =
+ sizeof (u32),.format_trace = format_ila_sir2ila_trace,.n_errors =
+ ILA_N_ERROR,.error_strings = ila_error_strings,.n_next_nodes =
+ ILA_SIR2ILA_N_NEXT,.next_nodes =
+ {
+ [ILA_SIR2ILA_NEXT_DROP] = "error-drop"}
+,};
+
+VNET_IP6_UNICAST_FEATURE_INIT (ila_sir2ila, static) =
+{
+ .node_name = "sir-to-ila",.runs_before =
+ {
+"ip6-lookup", 0},.feature_index = &ila_main.ila_sir2ila_feature_index,};
+
+int
+ila_add_del_entry (ila_add_del_entry_args_t * args)
+{
+ ila_main_t *ilm = &ila_main;
+ ip6_main_t *im6 = &ip6_main;
+ BVT (clib_bihash_kv) kv, value;
+
+ //Sanity check
+ if (args->type == ILA_TYPE_IID || args->type == ILA_TYPE_LUID)
+ {
+ if ((args->sir_address.as_u8[8] >> 5) != args->type)
+ {
+ clib_warning ("Incorrect SIR address (ILA type mismatch %d %d)",
+ args->sir_address.as_u8[8] >> 1, args->type);
+ return -1;
+ }
+ if (args->sir_address.as_u8[8] & 0x10)
+ {
+ clib_warning ("Checksum bit should not be set in SIR address");
+ return -1;
+ }
+ }
+ else if (args->type == ILA_TYPE_VNIDM)
+ {
+ if (args->sir_address.as_u8[0] != 0xff ||
+ (args->sir_address.as_u8[1] & 0xf0) != 0xf0)
+ {
+ clib_warning ("SIR multicast address must start with fff");
+ return -1;
+ }
+ if (args->sir_address.as_u16[1] || args->sir_address.as_u16[2] ||
+ args->sir_address.as_u16[3] || args->sir_address.as_u16[4] ||
+ args->sir_address.as_u16[5] || (args->sir_address.as_u8[12] & 0xf0))
+ {
+ clib_warning ("SIR multicast address must start with fff");
+ return -1;
+ }
+ }
+
+ if (!args->is_del)
+ {
+ ila_entry_t *e;
+ pool_get (ilm->entries, e);
+ e->type = args->type;
+ e->sir_address = args->sir_address;
+ e->ila_adj_index = args->local_adj_index;
+ e->csum_mode = args->csum_mode;
+
+ //Construct ILA address
+ switch (e->type)
+ {
+ case ILA_TYPE_IID:
+ e->ila_address = e->sir_address;
+ break;
+ case ILA_TYPE_LUID:
+ e->ila_address.as_u64[0] = args->locator;
+ e->ila_address.as_u64[1] = args->sir_address.as_u64[1];
+ break;
+ case ILA_TYPE_VNID6:
+ e->ila_address.as_u64[0] = args->locator;
+ e->ila_address.as_u8[8] = (ILA_TYPE_VNID6 << 1);
+ e->ila_address.as_u32[2] |= args->vnid;
+ e->ila_address.as_u32[3] = args->sir_address.as_u32[3];
+ break;
+ case ILA_TYPE_VNIDM:
+ e->ila_address.as_u64[0] = args->locator;
+ e->ila_address.as_u8[8] = (ILA_TYPE_VNIDM << 1);
+ e->ila_address.as_u32[2] |= args->vnid;
+ e->ila_address.as_u32[3] = args->sir_address.as_u32[3];
+ e->ila_address.as_u8[12] |= args->sir_address.as_u8[2] << 4;
+ break;
+ case ILA_TYPE_VNID4:
+ clib_warning ("ILA type '%U' is not supported", format_ila_type,
+ e->type);
+ return -1;
+ }
+
+ //Modify ILA checksum if necessary
+ if (e->csum_mode == ILA_CSUM_MODE_NEUTRAL_MAP)
+ {
+ ip_csum_t csum = e->ila_address.as_u16[7];
+ int i;
+ for (i = 0; i < 4; i++)
+ {
+ csum = ip_csum_sub_even (csum, e->sir_address.as_u32[i]);
+ csum = ip_csum_add_even (csum, e->ila_address.as_u32[i]);
+ }
+ csum = ip_csum_add_even (csum, clib_host_to_net_u16 (0x1000));
+ e->ila_address.as_u16[7] = ip_csum_fold (csum);
+ e->ila_address.as_u8[8] |= 0x10;
+ }
+
+ //Create entry with the sir address
+ kv.key[0] = e->sir_address.as_u64[0];
+ kv.key[1] = e->sir_address.as_u64[1];
+ kv.key[2] = 0;
+ kv.value = e - ilm->entries;
+ BV (clib_bihash_add_del) (&ilm->id_to_entry_table, &kv,
+ 1 /* is_add */ );
+
+ if (e->ila_adj_index != ~0)
+ {
+ //This is a local entry - let's create a local adjacency
+ ip_adjacency_t adj;
+ ip6_add_del_route_args_t route_args;
+ ila_adj_data_t *ad;
+
+ //Adjacency
+ memset (&adj, 0, sizeof (adj));
+ adj.explicit_fib_index = ~0;
+ adj.lookup_next_index = ilm->ip6_lookup_next_index;
+ ad = (ila_adj_data_t *) & adj.opaque;
+ ad->entry_index = e - ilm->entries;
+
+ //Route
+ memset (&route_args, 0, sizeof (route_args));
+ route_args.table_index_or_table_id = 0;
+ route_args.flags = IP6_ROUTE_FLAG_ADD;
+ route_args.dst_address = e->ila_address;
+ route_args.dst_address_length = 128;
+ route_args.adj_index = ~0;
+ route_args.add_adj = &adj;
+ route_args.n_add_adj = 1;
+
+ ip6_add_del_route (im6, &route_args);
+ }
+ }
+ else
+ {
+ ila_entry_t *e;
+ kv.key[0] = args->sir_address.as_u64[0];
+ kv.key[1] = args->sir_address.as_u64[1];
+ kv.key[2] = 0;
+
+ if ((BV (clib_bihash_search) (&ilm->id_to_entry_table, &kv, &value) <
+ 0))
+ {
+ return -1;
+ }
+
+ e = &ilm->entries[value.value];
+
+ if (e->ila_adj_index != ~0)
+ {
+ //Delete that route - Associated adjacency will be deleted too
+ ip6_add_del_route_args_t route_args;
+ memset (&route_args, 0, sizeof (route_args));
+ route_args.table_index_or_table_id = 0;
+ route_args.flags = IP6_ROUTE_FLAG_DEL;
+ route_args.dst_address = e->ila_address;
+ route_args.dst_address_length = 128;
+ route_args.adj_index = ~0;
+ route_args.add_adj = NULL;
+ route_args.n_add_adj = 0;
+
+ ip6_add_del_route (im6, &route_args);
+ }
+
+ BV (clib_bihash_add_del) (&ilm->id_to_entry_table, &kv,
+ 0 /* is_add */ );
+ pool_put (ilm->entries, e);
+ }
+ return 0;
+}
+
+int
+ila_interface (u32 sw_if_index, u8 disable)
+{
+ vlib_main_t *vm = vlib_get_main ();
+ ila_main_t *ilm = &ila_main;
+ ip6_main_t *im = &ip6_main;
+ ip_lookup_main_t *lm = &im->lookup_main;
+ ip_config_main_t *cm = &lm->rx_config_mains[VNET_UNICAST];
+ vnet_config_main_t *vcm = &cm->config_main;
+ u32 ci, feature_index;
+
+ vec_validate_init_empty (cm->config_index_by_sw_if_index, sw_if_index, ~0);
+ ci = cm->config_index_by_sw_if_index[sw_if_index];
+ feature_index = ilm->ila_sir2ila_feature_index;
+
+ ci = ((disable) ? vnet_config_del_feature : vnet_config_add_feature)
+ (vm, vcm, ci, feature_index,
+ /* config data */ 0,
+ /* # bytes of config data */ 0);
+
+ cm->config_index_by_sw_if_index[sw_if_index] = ci;
+ return 0;
+}
+
+clib_error_t *
+vlib_plugin_register (vlib_main_t * vm, vnet_plugin_handoff_t * h,
+ int from_early_init)
+{
+ clib_error_t *error = 0;
+
+ return error;
+}
+
+clib_error_t *
+ila_init (vlib_main_t * vm)
+{
+ ila_main_t *ilm = &ila_main;
+ ilm->entries = NULL;
+
+ ASSERT (sizeof (ila_adj_data_t) < IP_ADJACENCY_OPAQUE_SZ);
+
+ ilm->lookup_table_nbuckets = ILA_TABLE_DEFAULT_HASH_NUM_BUCKETS;
+ ilm->lookup_table_nbuckets = 1 << max_log2 (ilm->lookup_table_nbuckets);
+ ilm->lookup_table_size = ILA_TABLE_DEFAULT_HASH_MEMORY_SIZE;
+
+ BV (clib_bihash_init) (&ilm->id_to_entry_table,
+ "ila id to entry index table",
+ ilm->lookup_table_nbuckets, ilm->lookup_table_size);
+
+ vlib_node_t *ip6_lookup_node =
+ vlib_get_node_by_name (vm, (u8 *) "ip6-lookup");
+
+ ilm->ip6_lookup_next_index =
+ vlib_node_add_next (vm, ip6_lookup_node->index, ila_ila2sir_node.index);
+ return NULL;
+}
+
+VLIB_INIT_FUNCTION (ila_init);
+
+static clib_error_t *
+ila_entry_command_fn (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ unformat_input_t _line_input, *line_input = &_line_input;
+ ila_add_del_entry_args_t args = { 0 };
+ ip6_address_t next_hop;
+ u8 next_hop_set = 0;
+ ip6_main_t *im6 = &ip6_main;
+ int ret;
+
+ args.type = ILA_TYPE_IID;
+ args.csum_mode = ILA_CSUM_MODE_NO_ACTION;
+ args.local_adj_index = ~0;
+
+ if (!unformat_user (input, unformat_line_input, line_input))
+ return 0;
+
+ while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (line_input, "type %U", unformat_ila_type, &args.type))
+ ;
+ else
+ if (unformat
+ (line_input, "sir-address %U", unformat_ip6_address,
+ &args.sir_address))
+ ;
+ else
+ if (unformat
+ (line_input, "locator %U", unformat_half_ip6_address,
+ &args.locator))
+ ;
+ else if (unformat (line_input, "adj-index %u", &args.local_adj_index))
+ ;
+ else
+ if (unformat
+ (line_input, "csum-mode %U", unformat_ila_csum_mode,
+ &args.csum_mode))
+ ;
+ else if (unformat (line_input, "vnid %x", &args.vnid))
+ ;
+ else
+ if (unformat
+ (line_input, "next-hop %U", unformat_ip6_address, &next_hop))
+ next_hop_set = 1;
+ else if (unformat (line_input, "del"))
+ args.is_del = 1;
+ else
+ return clib_error_return (0, "parse error: '%U'",
+ format_unformat_error, line_input);
+ }
+
+ unformat_free (line_input);
+
+ if (next_hop_set)
+ {
+ if (args.local_adj_index != ~0)
+ return clib_error_return (0,
+ "Specified both next hop and adjacency index");
+
+ u32 ai = ip6_get_route (im6, 0, 0, &next_hop, 128);
+ if (ai == 0)
+ return clib_error_return (0, "No route to next-hop %U",
+ format_ip6_address, &next_hop);
+
+ ip_lookup_main_t *lm6 = &ip6_main.lookup_main;
+ ip_adjacency_t *adj6 = ip_get_adjacency (lm6, ai);
+ if (adj6->lookup_next_index != IP_LOOKUP_NEXT_REWRITE)
+ {
+ return clib_error_return (0,
+ "Next-Hop route has to be a rewrite route");
+ }
+ args.local_adj_index = ai;
+ }
+
+ if ((ret = ila_add_del_entry (&args)))
+ return clib_error_return (0, "ila_add_del_entry returned error %d", ret);
+
+ return NULL;
+}
+
+VLIB_CLI_COMMAND (ila_entry_command, static) =
+{
+ .path = "ila entry",
+ .short_help = "ila entry [type <type>] [sir-address <address>] [locator <locator>] [vnid <hex-vnid>]"
+ " [adj-index <adj-index>] [next-hop <next-hop>]"
+ " [csum-mode (no-action|neutral-map|transport-adjust)] [del]",
+ .function = ila_entry_command_fn,
+};
+
+static clib_error_t *
+ila_interface_command_fn (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ vnet_main_t *vnm = vnet_get_main ();
+ u32 sw_if_index = ~0;
+ u8 disable = 0;
+
+ if (!unformat (input, "%U", unformat_vnet_sw_interface, vnm, &sw_if_index))
+ {
+ return clib_error_return (0, "Invalid interface name");
+ }
+
+ if (unformat (input, "disable"))
+ {
+ disable = 1;
+ }
+
+ int ret;
+ if ((ret = ila_interface (sw_if_index, disable)))
+ return clib_error_return (0, "ila_interface returned error %d", ret);
+
+ return NULL;
+}
+
+VLIB_CLI_COMMAND (ila_interface_command, static) =
+{
+ .path = "ila interface",
+ .short_help = "ila interface <interface-name> [disable]",
+ .function = ila_interface_command_fn,
+};
+
+static clib_error_t *
+ila_show_entries_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ vnet_main_t *vnm = vnet_get_main ();
+ ila_main_t *ilm = &ila_main;
+ ila_entry_t *e;
+
+ vlib_cli_output (vm, " %U\n", format_ila_entry, vnm, NULL);
+ pool_foreach (e, ilm->entries,
+ ({
+ vlib_cli_output (vm, " %U\n", format_ila_entry, vnm, e);
+ }));
+
+ return NULL;
+}
+
+VLIB_CLI_COMMAND (ila_show_entries_command, static) =
+{
+ .path = "show ila entries",
+ .short_help = "show ila entries",
+ .function = ila_show_entries_command_fn,
+};
Code Review / vpp.git / commitdiff