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authorNeale Ranns <nranns@cisco.com>2016-11-22 17:07:28 +0000
committerDamjan Marion <dmarion.lists@gmail.com>2017-01-27 19:53:46 +0000
commit32e1c010b0c34fd0984f7fc45fae648a182025c5 (patch)
tree06a440bdc9dc039ad0dcf866acc9e10a6ea5e2e7 /src/vnet/ip
parent6f692d6e5a8ffc920a728372ef773199bc5466c0 (diff)
IP Multicast FIB (mfib)
- IPv[46] mfib tables with support for (*,G/m), (*,G) and (S,G) exact and longest prefix match - Replication represented via a new replicate DPO. - RPF configuration and data-plane checking - data-plane signals sent to listening control planes. The functions of multicast forwarding entries differ from their unicast conterparts, so we introduce a new mfib_table_t and mfib_entry_t objects. However, we re-use the fib_path_list to resolve and build the entry's output list. the fib_path_list provides the service to construct a replicate DPO for multicast. 'make tests' is added to with two new suites; TEST=mfib, this is invocation of the CLI command 'test mfib' which deals with many path add/remove, flag set/unset scenarios, TEST=ip-mcast, data-plane forwarding tests. Updated applications to use the new MIFB functions; - IPv6 NS/RA. - DHCPv6 unit tests for these are undated accordingly. Change-Id: I49ec37b01f1b170335a5697541c8fd30e6d3a961 Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'src/vnet/ip')
-rw-r--r--src/vnet/ip/ip.api53
-rw-r--r--src/vnet/ip/ip4.h24
-rw-r--r--src/vnet/ip/ip4_forward.c498
-rw-r--r--src/vnet/ip/ip4_input.c4
-rw-r--r--src/vnet/ip/ip6.h27
-rw-r--r--src/vnet/ip/ip6_forward.c83
-rw-r--r--src/vnet/ip/ip6_input.c43
-rw-r--r--src/vnet/ip/ip6_neighbor.c134
-rw-r--r--src/vnet/ip/ip_api.c210
-rw-r--r--src/vnet/ip/lookup.c171
-rw-r--r--src/vnet/ip/lookup.h82
11 files changed, 840 insertions, 489 deletions
diff --git a/src/vnet/ip/ip.api b/src/vnet/ip/ip.api
index 5371696c339..65f6e7a79ed 100644
--- a/src/vnet/ip/ip.api
+++ b/src/vnet/ip/ip.api
@@ -395,6 +395,41 @@ define ip_add_del_route_reply
i32 retval;
};
+/** \brief Add / del route request
+ @param client_index - opaque cookie to identify the sender
+ @param context - sender context, to match reply w/ request
+ @param sw_if_index - software index of the new vlan's parent interface
+ @param vrf_id - fib table /vrf associated with the route
+
+ FIXME
+*/
+define ip_mroute_add_del
+{
+ u32 client_index;
+ u32 context;
+ u32 next_hop_sw_if_index;
+ u32 table_id;
+ u32 entry_flags;
+ u32 itf_flags;
+ u16 grp_address_length;
+ u8 create_vrf_if_needed;
+ u8 is_add;
+ u8 is_ipv6;
+ u8 is_local;
+ u8 grp_address[16];
+ u8 src_address[16];
+};
+
+/** \brief Reply for add / del mroute request
+ @param context - returned sender context, to match reply w/ request
+ @param retval - return code
+*/
+define ip_mroute_add_del_reply
+{
+ u32 context;
+ i32 retval;
+};
+
define ip_address_details
{
u32 client_index;
@@ -424,6 +459,24 @@ define ip_dump
u8 is_ipv6;
};
+define mfib_signal_dump
+{
+ u32 client_index;
+ u32 context;
+};
+
+define mfib_signal_details
+{
+ u32 client_index;
+ u32 context;
+ u32 sw_if_index;
+ u32 table_id;
+ u16 grp_address_len;
+ u8 grp_address[16];
+ u8 src_address[16];
+ u16 ip_packet_len;
+ u8 ip_packet_data[256];
+};
/*
* Local Variables:
diff --git a/src/vnet/ip/ip4.h b/src/vnet/ip/ip4.h
index cc33dff468f..b184fbaef42 100644
--- a/src/vnet/ip/ip4.h
+++ b/src/vnet/ip/ip4.h
@@ -68,6 +68,18 @@ typedef struct ip4_fib_t
} ip4_fib_t;
+typedef struct ip4_mfib_t
+{
+ /* Hash table for each prefix length mapping. */
+ uword *fib_entry_by_dst_address[65];
+
+ /* Table ID (hash key) for this FIB. */
+ u32 table_id;
+
+ /* Index into FIB vector. */
+ u32 index;
+} ip4_mfib_t;
+
struct ip4_main_t;
typedef void (ip4_add_del_interface_address_function_t)
@@ -99,11 +111,17 @@ typedef struct ip4_main_t
/** Vector of FIBs. */
struct fib_table_t_ *fibs;
+ /** Vector of MFIBs. */
+ struct mfib_table_t_ *mfibs;
+
u32 fib_masks[33];
/** Table index indexed by software interface. */
u32 *fib_index_by_sw_if_index;
+ /** Table index indexed by software interface. */
+ u32 *mfib_index_by_sw_if_index;
+
/* IP4 enabled count by software interface */
u8 *ip_enabled_by_sw_if_index;
@@ -111,6 +129,10 @@ typedef struct ip4_main_t
ID space is not necessarily dense; index space is dense. */
uword *fib_index_by_table_id;
+ /** Hash table mapping table id to multicast fib index.
+ ID space is not necessarily dense; index space is dense. */
+ uword *mfib_index_by_table_id;
+
/** Functions to call when interface address changes. */
ip4_add_del_interface_address_callback_t
* add_del_interface_address_callbacks;
@@ -140,7 +162,9 @@ extern ip4_main_t ip4_main;
/** Global ip4 input node. Errors get attached to ip4 input node. */
extern vlib_node_registration_t ip4_input_node;
extern vlib_node_registration_t ip4_lookup_node;
+extern vlib_node_registration_t ip4_local_node;
extern vlib_node_registration_t ip4_rewrite_node;
+extern vlib_node_registration_t ip4_rewrite_mcast_node;
extern vlib_node_registration_t ip4_rewrite_local_node;
extern vlib_node_registration_t ip4_arp_node;
extern vlib_node_registration_t ip4_glean_node;
diff --git a/src/vnet/ip/ip4_forward.c b/src/vnet/ip/ip4_forward.c
index 87b345bd3f5..8081b34b3dc 100644
--- a/src/vnet/ip/ip4_forward.c
+++ b/src/vnet/ip/ip4_forward.c
@@ -50,6 +50,7 @@
#include <vnet/fib/ip4_fib.h>
#include <vnet/dpo/load_balance.h>
#include <vnet/dpo/classify_dpo.h>
+#include <vnet/mfib/mfib_table.h> /* for mFIB table and entry creation */
/**
* @file
@@ -714,16 +715,17 @@ ip4_interface_first_address (ip4_main_t * im, u32 sw_if_index,
ip_interface_address_t *ia = 0;
ip4_address_t *result = 0;
- foreach_ip_interface_address (lm, ia, sw_if_index,
- 1 /* honor unnumbered */ ,
- (
- {
- ip4_address_t * a =
- ip_interface_address_get_address (lm, ia);
- result = a;
- break;
- }
- ));
+ /* *INDENT-OFF* */
+ foreach_ip_interface_address
+ (lm, ia, sw_if_index,
+ 1 /* honor unnumbered */ ,
+ ({
+ ip4_address_t * a =
+ ip_interface_address_get_address (lm, ia);
+ result = a;
+ break;
+ }));
+ /* *INDENT-OFF* */
if (result_ia)
*result_ia = result ? ia : 0;
return result;
@@ -748,9 +750,19 @@ ip4_add_interface_routes (u32 sw_if_index,
{
fib_node_index_t fei;
- fei = fib_table_entry_update_one_path (fib_index, &pfx, FIB_SOURCE_INTERFACE, (FIB_ENTRY_FLAG_CONNECTED | FIB_ENTRY_FLAG_ATTACHED), FIB_PROTOCOL_IP4, NULL, /* No next-hop address */
- sw_if_index, ~0, // invalid FIB index
- 1, NULL, // no out-label stack
+ fei = fib_table_entry_update_one_path (fib_index, &pfx,
+ FIB_SOURCE_INTERFACE,
+ (FIB_ENTRY_FLAG_CONNECTED |
+ FIB_ENTRY_FLAG_ATTACHED),
+ FIB_PROTOCOL_IP4,
+ /* No next-hop address */
+ NULL,
+ sw_if_index,
+ // invalid FIB index
+ ~0,
+ 1,
+ // no out-label stack
+ NULL,
FIB_ROUTE_PATH_FLAG_NONE);
a->neighbor_probe_adj_index = fib_entry_get_adj (fei);
}
@@ -778,8 +790,16 @@ ip4_add_interface_routes (u32 sw_if_index,
}
}
- fib_table_entry_update_one_path (fib_index, &pfx, FIB_SOURCE_INTERFACE, (FIB_ENTRY_FLAG_CONNECTED | FIB_ENTRY_FLAG_LOCAL), FIB_PROTOCOL_IP4, &pfx.fp_addr, sw_if_index, ~0, // invalid FIB index
- 1, NULL, // no out-label stack
+ fib_table_entry_update_one_path (fib_index, &pfx,
+ FIB_SOURCE_INTERFACE,
+ (FIB_ENTRY_FLAG_CONNECTED |
+ FIB_ENTRY_FLAG_LOCAL),
+ FIB_PROTOCOL_IP4,
+ &pfx.fp_addr,
+ sw_if_index,
+ // invalid FIB index
+ ~0,
+ 1, NULL,
FIB_ROUTE_PATH_FLAG_NONE);
}
@@ -827,9 +847,10 @@ ip4_sw_interface_enable_disable (u32 sw_if_index, u32 is_enable)
vnet_feature_enable_disable ("ip4-unicast", "ip4-drop", sw_if_index,
!is_enable, 0, 0);
- vnet_feature_enable_disable ("ip4-multicast", "ip4-drop", sw_if_index,
- !is_enable, 0, 0);
+ vnet_feature_enable_disable ("ip4-multicast",
+ "ip4-mfib-forward-lookup",
+ sw_if_index, is_enable, 0, 0);
}
static clib_error_t *
@@ -855,36 +876,37 @@ ip4_add_del_interface_address_internal (vlib_main_t * vm,
* subnets on interfaces. Easy fix - disallow overlapping subnets, like
* most routers do.
*/
+ /* *INDENT-OFF* */
if (!is_del)
{
/* When adding an address check that it does not conflict
with an existing address. */
ip_interface_address_t *ia;
- foreach_ip_interface_address (&im->lookup_main, ia, sw_if_index,
- 0 /* honor unnumbered */ ,
- (
- {
- ip4_address_t * x =
- ip_interface_address_get_address
- (&im->lookup_main, ia);
- if (ip4_destination_matches_route
- (im, address, x, ia->address_length)
- ||
- ip4_destination_matches_route (im,
- x,
- address,
- address_length))
- return
- clib_error_create
- ("failed to add %U which conflicts with %U for interface %U",
- format_ip4_address_and_length, address,
- address_length,
- format_ip4_address_and_length, x,
- ia->address_length,
- format_vnet_sw_if_index_name, vnm,
- sw_if_index);}
- ));
+ foreach_ip_interface_address
+ (&im->lookup_main, ia, sw_if_index,
+ 0 /* honor unnumbered */ ,
+ ({
+ ip4_address_t * x =
+ ip_interface_address_get_address
+ (&im->lookup_main, ia);
+ if (ip4_destination_matches_route
+ (im, address, x, ia->address_length) ||
+ ip4_destination_matches_route (im,
+ x,
+ address,
+ address_length))
+ return
+ clib_error_create
+ ("failed to add %U which conflicts with %U for interface %U",
+ format_ip4_address_and_length, address,
+ address_length,
+ format_ip4_address_and_length, x,
+ ia->address_length,
+ format_vnet_sw_if_index_name, vnm,
+ sw_if_index);
+ }));
}
+ /* *INDENT-ON* */
elts_before = pool_elts (lm->if_address_pool);
@@ -918,9 +940,10 @@ done:
}
clib_error_t *
-ip4_add_del_interface_address (vlib_main_t * vm, u32 sw_if_index,
- ip4_address_t * address, u32 address_length,
- u32 is_del)
+ip4_add_del_interface_address (vlib_main_t * vm,
+ u32 sw_if_index,
+ ip4_address_t * address,
+ u32 address_length, u32 is_del)
{
return ip4_add_del_interface_address_internal
(vm, sw_if_index, address, address_length, is_del);
@@ -1027,13 +1050,13 @@ VNET_FEATURE_INIT (ip4_vpath_mc, static) =
{
.arc_name = "ip4-multicast",
.node_name = "vpath-input-ip4",
- .runs_before = VNET_FEATURES ("ip4-lookup-multicast"),
+ .runs_before = VNET_FEATURES ("ip4-mfib-forward-lookup"),
};
VNET_FEATURE_INIT (ip4_lookup_mc, static) =
{
.arc_name = "ip4-multicast",
- .node_name = "ip4-lookup-multicast",
+ .node_name = "ip4-mfib-forward-lookup",
.runs_before = VNET_FEATURES ("ip4-drop"),
};
@@ -1083,6 +1106,7 @@ ip4_sw_interface_add_del (vnet_main_t * vnm, u32 sw_if_index, u32 is_add)
/* Fill in lookup tables with default table (0). */
vec_validate (im->fib_index_by_sw_if_index, sw_if_index);
+ vec_validate (im->mfib_index_by_sw_if_index, sw_if_index);
vnet_feature_enable_disable ("ip4-unicast", "ip4-drop", sw_if_index,
is_add, 0, 0);
@@ -1123,6 +1147,7 @@ ip4_lookup_init (vlib_main_t * vm)
/* Create FIB with index 0 and table id of 0. */
fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4, 0);
+ mfib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4, 0);
{
pg_node_t *pn;
@@ -1341,27 +1366,35 @@ ip4_punt (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame)
return ip4_drop_or_punt (vm, node, frame, IP4_ERROR_ADJACENCY_PUNT);
}
+/* *INDENT-OFF* */
VLIB_REGISTER_NODE (ip4_drop_node, static) =
{
- .function = ip4_drop,.name = "ip4-drop",.vector_size =
- sizeof (u32),.format_trace = format_ip4_forward_next_trace,.n_next_nodes =
- 1,.next_nodes =
- {
- [0] = "error-drop",}
-,};
+ .function = ip4_drop,.
+ name = "ip4-drop",
+ .vector_size = sizeof (u32),
+ .format_trace = format_ip4_forward_next_trace,
+ .n_next_nodes = 1,
+ .next_nodes = {
+ [0] = "error-drop",
+ },
+};
VLIB_NODE_FUNCTION_MULTIARCH (ip4_drop_node, ip4_drop);
VLIB_REGISTER_NODE (ip4_punt_node, static) =
{
- .function = ip4_punt,.name = "ip4-punt",.vector_size =
- sizeof (u32),.format_trace = format_ip4_forward_next_trace,.n_next_nodes =
- 1,.next_nodes =
- {
- [0] = "error-punt",}
-,};
+ .function = ip4_punt,
+ .name = "ip4-punt",
+ .vector_size = sizeof (u32),
+ .format_trace = format_ip4_forward_next_trace,
+ .n_next_nodes = 1,
+ .next_nodes = {
+ [0] = "error-punt",
+ },
+};
VLIB_NODE_FUNCTION_MULTIARCH (ip4_punt_node, ip4_punt);
+/* *INDENT-ON */
/* Compute TCP/UDP/ICMP4 checksum in software. */
u16
@@ -1500,13 +1533,15 @@ ip4_local (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame)
fib_index0 = vec_elt (im->fib_index_by_sw_if_index,
vnet_buffer (p0)->sw_if_index[VLIB_RX]);
- fib_index0 = (vnet_buffer (p0)->sw_if_index[VLIB_TX] == (u32) ~ 0) ?
- fib_index0 : vnet_buffer (p0)->sw_if_index[VLIB_TX];
+ fib_index0 =
+ (vnet_buffer (p0)->sw_if_index[VLIB_TX] ==
+ (u32) ~ 0) ? fib_index0 : vnet_buffer (p0)->sw_if_index[VLIB_TX];
fib_index1 = vec_elt (im->fib_index_by_sw_if_index,
vnet_buffer (p1)->sw_if_index[VLIB_RX]);
- fib_index1 = (vnet_buffer (p1)->sw_if_index[VLIB_TX] == (u32) ~ 0) ?
- fib_index1 : vnet_buffer (p1)->sw_if_index[VLIB_TX];
+ fib_index1 =
+ (vnet_buffer (p1)->sw_if_index[VLIB_TX] ==
+ (u32) ~ 0) ? fib_index1 : vnet_buffer (p1)->sw_if_index[VLIB_TX];
mtrie0 = &ip4_fib_get (fib_index0)->mtrie;
mtrie1 = &ip4_fib_get (fib_index1)->mtrie;
@@ -1726,8 +1761,9 @@ ip4_local (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame)
fib_index0 = vec_elt (im->fib_index_by_sw_if_index,
vnet_buffer (p0)->sw_if_index[VLIB_RX]);
- fib_index0 = (vnet_buffer (p0)->sw_if_index[VLIB_TX] == (u32) ~ 0) ?
- fib_index0 : vnet_buffer (p0)->sw_if_index[VLIB_TX];
+ fib_index0 =
+ (vnet_buffer (p0)->sw_if_index[VLIB_TX] ==
+ (u32) ~ 0) ? fib_index0 : vnet_buffer (p0)->sw_if_index[VLIB_TX];
mtrie0 = &ip4_fib_get (fib_index0)->mtrie;
@@ -1838,10 +1874,11 @@ ip4_local (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame)
return frame->n_vectors;
}
-VLIB_REGISTER_NODE (ip4_local_node, static) =
+VLIB_REGISTER_NODE (ip4_local_node) =
{
.function = ip4_local,.name = "ip4-local",.vector_size =
- sizeof (u32),.format_trace = format_ip4_forward_next_trace,.n_next_nodes =
+ sizeof (u32),.format_trace =
+ format_ip4_forward_next_trace,.n_next_nodes =
IP_LOCAL_N_NEXT,.next_nodes =
{
[IP_LOCAL_NEXT_DROP] = "error-drop",
@@ -2022,8 +2059,8 @@ ip4_arp_inline (vlib_main_t * vm,
* Can happen if the control-plane is programming tables
* with traffic flowing; at least that's today's lame excuse.
*/
- if ((is_glean && adj0->lookup_next_index != IP_LOOKUP_NEXT_GLEAN) ||
- (!is_glean && adj0->lookup_next_index != IP_LOOKUP_NEXT_ARP))
+ if ((is_glean && adj0->lookup_next_index != IP_LOOKUP_NEXT_GLEAN)
+ || (!is_glean && adj0->lookup_next_index != IP_LOOKUP_NEXT_ARP))
{
p0->error = node->errors[IP4_ARP_ERROR_NON_ARP_ADJ];
}
@@ -2196,15 +2233,17 @@ ip4_probe_neighbor (vlib_main_t * vm, ip4_address_t * dst, u32 sw_if_index)
{
vnm->api_errno = VNET_API_ERROR_NO_MATCHING_INTERFACE;
return clib_error_return
- (0, "no matching interface address for destination %U (interface %U)",
- format_ip4_address, dst,
- format_vnet_sw_if_index_name, vnm, sw_if_index);
+ (0,
+ "no matching interface address for destination %U (interface %U)",
+ format_ip4_address, dst, format_vnet_sw_if_index_name, vnm,
+ sw_if_index);
}
adj = ip_get_adjacency (&im->lookup_main, ia->neighbor_probe_adj_index);
h =
- vlib_packet_template_get_packet (vm, &im->ip4_arp_request_packet_template,
+ vlib_packet_template_get_packet (vm,
+ &im->ip4_arp_request_packet_template,
&bi);
hi = vnet_get_sup_hw_interface (vnm, sw_if_index);
@@ -2243,7 +2282,7 @@ typedef enum
always_inline uword
ip4_rewrite_inline (vlib_main_t * vm,
vlib_node_runtime_t * node,
- vlib_frame_t * frame, int is_midchain)
+ vlib_frame_t * frame, int is_midchain, int is_mcast)
{
ip_lookup_main_t *lm = &ip4_main.lookup_main;
u32 *from = vlib_frame_vector_args (frame);
@@ -2457,6 +2496,14 @@ ip4_rewrite_inline (vlib_main_t * vm,
adj0->sub_type.midchain.fixup_func (vm, adj0, p0);
adj1->sub_type.midchain.fixup_func (vm, adj1, p1);
}
+ if (is_mcast)
+ {
+ /*
+ * copy bytes from the IP address into the MAC rewrite
+ */
+ vnet_fixup_one_header (adj0[0], &ip0->dst_address, ip0, 1);
+ vnet_fixup_one_header (adj1[0], &ip1->dst_address, ip1, 1);
+ }
vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
to_next, n_left_to_next,
@@ -2530,6 +2577,13 @@ ip4_rewrite_inline (vlib_main_t * vm,
/* Guess we are only writing on simple Ethernet header. */
vnet_rewrite_one_header (adj0[0], ip0, sizeof (ethernet_header_t));
+ if (is_mcast)
+ {
+ /*
+ * copy bytes from the IP address into the MAC rewrite
+ */
+ vnet_fixup_one_header (adj0[0], &ip0->dst_address, ip0, 1);
+ }
/* Update packet buffer attributes/set output interface. */
rw_len0 = adj0[0].rewrite_header.data_bytes;
@@ -2624,36 +2678,58 @@ static uword
ip4_rewrite (vlib_main_t * vm,
vlib_node_runtime_t * node, vlib_frame_t * frame)
{
- return ip4_rewrite_inline (vm, node, frame, 0);
+ return ip4_rewrite_inline (vm, node, frame, 0, 0);
}
static uword
ip4_midchain (vlib_main_t * vm,
vlib_node_runtime_t * node, vlib_frame_t * frame)
{
- return ip4_rewrite_inline (vm, node, frame, 1);
+ return ip4_rewrite_inline (vm, node, frame, 1, 0);
}
-
-VLIB_REGISTER_NODE (ip4_rewrite_node) =
+static uword
+ip4_rewrite_mcast (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
{
- .function = ip4_rewrite,.name = "ip4-rewrite",.vector_size =
- sizeof (u32),.format_trace = format_ip4_rewrite_trace,.n_next_nodes =
- 2,.next_nodes =
- {
- [IP4_REWRITE_NEXT_DROP] = "error-drop",
- [IP4_REWRITE_NEXT_ICMP_ERROR] = "ip4-icmp-error",}
-,};
+ return ip4_rewrite_inline (vm, node, frame, 0, 1);
+}
-VLIB_NODE_FUNCTION_MULTIARCH (ip4_rewrite_node, ip4_rewrite);
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (ip4_rewrite_node) = {
+ .function = ip4_rewrite,
+ .name = "ip4-rewrite",
+ .vector_size = sizeof (u32),
+
+ .format_trace = format_ip4_rewrite_trace,
+
+ .n_next_nodes = 2,
+ .next_nodes = {
+ [IP4_REWRITE_NEXT_DROP] = "error-drop",
+ [IP4_REWRITE_NEXT_ICMP_ERROR] = "ip4-icmp-error",
+ },
+};
+VLIB_NODE_FUNCTION_MULTIARCH (ip4_rewrite_node, ip4_rewrite)
-VLIB_REGISTER_NODE (ip4_midchain_node) =
-{
-.function = ip4_midchain,.name = "ip4-midchain",.vector_size =
- sizeof (u32),.format_trace = format_ip4_forward_next_trace,.sibling_of =
- "ip4-rewrite",};
+VLIB_REGISTER_NODE (ip4_rewrite_mcast_node) = {
+ .function = ip4_rewrite_mcast,
+ .name = "ip4-rewrite-mcast",
+ .vector_size = sizeof (u32),
+ .format_trace = format_ip4_rewrite_trace,
+ .sibling_of = "ip4-rewrite",
+};
+VLIB_NODE_FUNCTION_MULTIARCH (ip4_rewrite_mcast_node, ip4_rewrite_mcast)
+
+VLIB_REGISTER_NODE (ip4_midchain_node) = {
+ .function = ip4_midchain,
+ .name = "ip4-midchain",
+ .vector_size = sizeof (u32),
+ .format_trace = format_ip4_forward_next_trace,
+ .sibling_of = "ip4-rewrite",
+};
VLIB_NODE_FUNCTION_MULTIARCH (ip4_midchain_node, ip4_midchain);
+/* *INDENT-ON */
static clib_error_t *
add_del_interface_table (vlib_main_t * vm,
@@ -2695,6 +2771,11 @@ add_del_interface_table (vlib_main_t * vm,
//
vec_validate (im->fib_index_by_sw_if_index, sw_if_index);
im->fib_index_by_sw_if_index[sw_if_index] = fib_index;
+
+ fib_index = mfib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4,
+ table_id);
+ vec_validate (im->mfib_index_by_sw_if_index, sw_if_index);
+ im->mfib_index_by_sw_if_index[sw_if_index] = fib_index;
}
done:
@@ -2730,243 +2811,6 @@ VLIB_CLI_COMMAND (set_interface_ip_table_command, static) =
};
/* *INDENT-ON* */
-
-static uword
-ip4_lookup_multicast (vlib_main_t * vm,
- vlib_node_runtime_t * node, vlib_frame_t * frame)
-{
- ip4_main_t *im = &ip4_main;
- vlib_combined_counter_main_t *cm = &load_balance_main.lbm_to_counters;
- u32 n_left_from, n_left_to_next, *from, *to_next;
- ip_lookup_next_t next;
- u32 cpu_index = os_get_cpu_number ();
-
- from = vlib_frame_vector_args (frame);
- n_left_from = frame->n_vectors;
- next = node->cached_next_index;
-
- while (n_left_from > 0)
- {
- vlib_get_next_frame (vm, node, next, to_next, n_left_to_next);
-
- while (n_left_from >= 4 && n_left_to_next >= 2)
- {
- vlib_buffer_t *p0, *p1;
- u32 pi0, pi1, lb_index0, lb_index1, wrong_next;
- ip_lookup_next_t next0, next1;
- ip4_header_t *ip0, *ip1;
- u32 fib_index0, fib_index1;
- const dpo_id_t *dpo0, *dpo1;
- const load_balance_t *lb0, *lb1;
-
- /* Prefetch next iteration. */
- {
- 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 (ip0[0]), LOAD);
- CLIB_PREFETCH (p3->data, sizeof (ip0[0]), LOAD);
- }
-
- pi0 = to_next[0] = from[0];
- pi1 = to_next[1] = from[1];
-
- p0 = vlib_get_buffer (vm, pi0);
- p1 = vlib_get_buffer (vm, pi1);
-
- ip0 = vlib_buffer_get_current (p0);
- ip1 = vlib_buffer_get_current (p1);
-
- fib_index0 =
- vec_elt (im->fib_index_by_sw_if_index,
- vnet_buffer (p0)->sw_if_index[VLIB_RX]);
- fib_index1 =
- vec_elt (im->fib_index_by_sw_if_index,
- vnet_buffer (p1)->sw_if_index[VLIB_RX]);
- fib_index0 =
- (vnet_buffer (p0)->sw_if_index[VLIB_TX] ==
- (u32) ~ 0) ? fib_index0 : vnet_buffer (p0)->sw_if_index[VLIB_TX];
- fib_index1 =
- (vnet_buffer (p1)->sw_if_index[VLIB_TX] ==
- (u32) ~ 0) ? fib_index1 : vnet_buffer (p1)->sw_if_index[VLIB_TX];
-
- lb_index0 = ip4_fib_table_lookup_lb (ip4_fib_get (fib_index0),
- &ip0->dst_address);
- lb_index1 = ip4_fib_table_lookup_lb (ip4_fib_get (fib_index1),
- &ip1->dst_address);
-
- lb0 = load_balance_get (lb_index0);
- lb1 = load_balance_get (lb_index1);
-
- ASSERT (lb0->lb_n_buckets > 0);
- ASSERT (is_pow2 (lb0->lb_n_buckets));
- ASSERT (lb1->lb_n_buckets > 0);
- ASSERT (is_pow2 (lb1->lb_n_buckets));
-
- vnet_buffer (p0)->ip.flow_hash = ip4_compute_flow_hash
- (ip0, lb0->lb_hash_config);
-
- vnet_buffer (p1)->ip.flow_hash = ip4_compute_flow_hash
- (ip1, lb1->lb_hash_config);
-
- dpo0 = load_balance_get_bucket_i (lb0,
- (vnet_buffer (p0)->ip.flow_hash &
- (lb0->lb_n_buckets_minus_1)));
- dpo1 = load_balance_get_bucket_i (lb1,
- (vnet_buffer (p1)->ip.flow_hash &
- (lb1->lb_n_buckets_minus_1)));
-
- next0 = dpo0->dpoi_next_node;
- vnet_buffer (p0)->ip.adj_index[VLIB_TX] = dpo0->dpoi_index;
- next1 = dpo1->dpoi_next_node;
- vnet_buffer (p1)->ip.adj_index[VLIB_TX] = dpo1->dpoi_index;
-
- if (1) /* $$$$$$ HACK FIXME */
- vlib_increment_combined_counter
- (cm, cpu_index, lb_index0, 1,
- vlib_buffer_length_in_chain (vm, p0));
- if (1) /* $$$$$$ HACK FIXME */
- vlib_increment_combined_counter
- (cm, cpu_index, lb_index1, 1,
- vlib_buffer_length_in_chain (vm, p1));
-
- from += 2;
- to_next += 2;
- n_left_to_next -= 2;
- n_left_from -= 2;
-
- wrong_next = (next0 != next) + 2 * (next1 != next);
- if (PREDICT_FALSE (wrong_next != 0))
- {
- switch (wrong_next)
- {
- case 1:
- /* A B A */
- to_next[-2] = pi1;
- to_next -= 1;
- n_left_to_next += 1;
- vlib_set_next_frame_buffer (vm, node, next0, pi0);
- break;
-
- case 2:
- /* A A B */
- to_next -= 1;
- n_left_to_next += 1;
- vlib_set_next_frame_buffer (vm, node, next1, pi1);
- break;
-
- case 3:
- /* A B C */
- to_next -= 2;
- n_left_to_next += 2;
- vlib_set_next_frame_buffer (vm, node, next0, pi0);
- vlib_set_next_frame_buffer (vm, node, next1, pi1);
- if (next0 == next1)
- {
- /* A B B */
- vlib_put_next_frame (vm, node, next, n_left_to_next);
- next = next1;
- vlib_get_next_frame (vm, node, next, to_next,
- n_left_to_next);
- }
- }
- }
- }
-
- while (n_left_from > 0 && n_left_to_next > 0)
- {
- vlib_buffer_t *p0;
- ip4_header_t *ip0;
- u32 pi0, lb_index0;
- ip_lookup_next_t next0;
- u32 fib_index0;
- const dpo_id_t *dpo0;
- const load_balance_t *lb0;
-
- pi0 = from[0];
- to_next[0] = pi0;
-
- p0 = vlib_get_buffer (vm, pi0);
-
- ip0 = vlib_buffer_get_current (p0);
-
- fib_index0 = vec_elt (im->fib_index_by_sw_if_index,
- vnet_buffer (p0)->sw_if_index[VLIB_RX]);
- fib_index0 = (vnet_buffer (p0)->sw_if_index[VLIB_TX] == (u32) ~ 0) ?
- fib_index0 : vnet_buffer (p0)->sw_if_index[VLIB_TX];
-
- lb_index0 = ip4_fib_table_lookup_lb (ip4_fib_get (fib_index0),
- &ip0->dst_address);
-
- lb0 = load_balance_get (lb_index0);
-
- ASSERT (lb0->lb_n_buckets > 0);
- ASSERT (is_pow2 (lb0->lb_n_buckets));
-
- vnet_buffer (p0)->ip.flow_hash = ip4_compute_flow_hash
- (ip0, lb0->lb_hash_config);
-
- dpo0 = load_balance_get_bucket_i (lb0,
- (vnet_buffer (p0)->ip.flow_hash &
- (lb0->lb_n_buckets_minus_1)));
-
- next0 = dpo0->dpoi_next_node;
- vnet_buffer (p0)->ip.adj_index[VLIB_TX] = dpo0->dpoi_index;
-
- if (1) /* $$$$$$ HACK FIXME */
- vlib_increment_combined_counter
- (cm, cpu_index, lb_index0, 1,
- vlib_buffer_length_in_chain (vm, p0));
-
- from += 1;
- to_next += 1;
- n_left_to_next -= 1;
- n_left_from -= 1;
-
- if (PREDICT_FALSE (next0 != next))
- {
- n_left_to_next += 1;
- vlib_put_next_frame (vm, node, next, n_left_to_next);
- next = next0;
- vlib_get_next_frame (vm, node, next, to_next, n_left_to_next);
- to_next[0] = pi0;
- to_next += 1;
- n_left_to_next -= 1;
- }
- }
-
- vlib_put_next_frame (vm, node, next, n_left_to_next);
- }
-
- if (node->flags & VLIB_NODE_FLAG_TRACE)
- ip4_forward_next_trace (vm, node, frame, VLIB_TX);
-
- return frame->n_vectors;
-}
-
-VLIB_REGISTER_NODE (ip4_lookup_multicast_node, static) =
-{
-.function = ip4_lookup_multicast,.name =
- "ip4-lookup-multicast",.vector_size = sizeof (u32),.sibling_of =
- "ip4-lookup",.format_trace = format_ip4_lookup_trace,.n_next_nodes = 0,};
-
-VLIB_NODE_FUNCTION_MULTIARCH (ip4_lookup_multicast_node,
- ip4_lookup_multicast);
-
-VLIB_REGISTER_NODE (ip4_multicast_node, static) =
-{
- .function = ip4_drop,.name = "ip4-multicast",.vector_size =
- sizeof (u32),.format_trace = format_ip4_forward_next_trace,.n_next_nodes =
- 1,.next_nodes =
- {
- [0] = "error-drop",}
-,};
-
int
ip4_lookup_validate (ip4_address_t * a, u32 fib_index0)
{
diff --git a/src/vnet/ip/ip4_input.c b/src/vnet/ip/ip4_input.c
index 1cf5e0b8517..ba200a9fe13 100644
--- a/src/vnet/ip/ip4_input.c
+++ b/src/vnet/ip/ip4_input.c
@@ -426,7 +426,7 @@ VLIB_REGISTER_NODE (ip4_input_node) = {
[IP4_INPUT_NEXT_DROP] = "error-drop",
[IP4_INPUT_NEXT_PUNT] = "error-punt",
[IP4_INPUT_NEXT_LOOKUP] = "ip4-lookup",
- [IP4_INPUT_NEXT_LOOKUP_MULTICAST] = "ip4-lookup-multicast",
+ [IP4_INPUT_NEXT_LOOKUP_MULTICAST] = "ip4-mfib-forward-lookup",
[IP4_INPUT_NEXT_ICMP_ERROR] = "ip4-icmp-error",
},
@@ -448,7 +448,7 @@ VLIB_REGISTER_NODE (ip4_input_no_checksum_node,static) = {
[IP4_INPUT_NEXT_DROP] = "error-drop",
[IP4_INPUT_NEXT_PUNT] = "error-punt",
[IP4_INPUT_NEXT_LOOKUP] = "ip4-lookup",
- [IP4_INPUT_NEXT_LOOKUP_MULTICAST] = "ip4-lookup-multicast",
+ [IP4_INPUT_NEXT_LOOKUP_MULTICAST] = "ip4-mfib-forward-lookup",
[IP4_INPUT_NEXT_ICMP_ERROR] = "ip4-icmp-error",
},
diff --git a/src/vnet/ip/ip6.h b/src/vnet/ip/ip6.h
index f493db017ec..6fecd42dc61 100644
--- a/src/vnet/ip/ip6.h
+++ b/src/vnet/ip/ip6.h
@@ -49,6 +49,7 @@
#include <stdbool.h>
#include <vppinfra/bihash_24_8.h>
#include <vppinfra/bihash_template.h>
+#include <vnet/util/radix.h>
/*
* Default size of the ip6 fib hash table
@@ -75,6 +76,21 @@ typedef struct
flow_hash_config_t flow_hash_config;
} ip6_fib_t;
+typedef struct ip6_mfib_t
+{
+ /* Table ID (hash key) for this FIB. */
+ u32 table_id;
+
+ /* Index into FIB vector. */
+ u32 index;
+
+ /*
+ * Pointer to the top of a radix tree.
+ * This cannot be realloc'd, hence it cannot be inlined with this table
+ */
+ struct radix_node_head *rhead;
+} ip6_mfib_t;
+
struct ip6_main_t;
typedef void (ip6_add_del_interface_address_function_t)
@@ -137,12 +153,18 @@ typedef struct ip6_main_t
/* Pool of FIBs. */
struct fib_table_t_ *fibs;
+ /** Vector of MFIBs. */
+ struct mfib_table_t_ *mfibs;
+
/* Network byte orders subnet mask for each prefix length */
ip6_address_t fib_masks[129];
/* Table index indexed by software interface. */
u32 *fib_index_by_sw_if_index;
+ /** Table index indexed by software interface. */
+ u32 *mfib_index_by_sw_if_index;
+
/* IP6 enabled count by software interface */
u8 *ip_enabled_by_sw_if_index;
@@ -150,6 +172,10 @@ typedef struct ip6_main_t
ID space is not necessarily dense; index space is dense. */
uword *fib_index_by_table_id;
+ /** Hash table mapping table id to multicast fib index.
+ ID space is not necessarily dense; index space is dense. */
+ uword *mfib_index_by_table_id;
+
/* Hash table mapping interface rewrite adjacency index by sw if index. */
uword *interface_route_adj_index_by_sw_if_index;
@@ -185,6 +211,7 @@ extern ip6_main_t ip6_main;
/* Global ip6 input node. Errors get attached to ip6 input node. */
extern vlib_node_registration_t ip6_input_node;
extern vlib_node_registration_t ip6_rewrite_node;
+extern vlib_node_registration_t ip6_rewrite_mcast_node;
extern vlib_node_registration_t ip6_rewrite_local_node;
extern vlib_node_registration_t ip6_discover_neighbor_node;
extern vlib_node_registration_t ip6_glean_node;
diff --git a/src/vnet/ip/ip6_forward.c b/src/vnet/ip/ip6_forward.c
index 232f72833fd..ac47b3ad1fb 100644
--- a/src/vnet/ip/ip6_forward.c
+++ b/src/vnet/ip/ip6_forward.c
@@ -42,8 +42,8 @@
#include <vnet/ethernet/ethernet.h> /* for ethernet_header_t */
#include <vnet/srp/srp.h> /* for srp_hw_interface_class */
#include <vppinfra/cache.h>
-#include <vnet/fib/fib_table.h>
#include <vnet/fib/ip6_fib.h>
+#include <vnet/mfib/ip6_mfib.h>
#include <vnet/dpo/load_balance.h>
#include <vnet/dpo/classify_dpo.h>
@@ -411,11 +411,14 @@ ip6_sw_interface_enable_disable (u32 sw_if_index, u32 is_enable)
return;
}
+ if (sw_if_index != 0)
+ ip6_mfib_interface_enable_disable (sw_if_index, is_enable);
+
vnet_feature_enable_disable ("ip6-unicast", "ip6-lookup", sw_if_index,
is_enable, 0, 0);
- vnet_feature_enable_disable ("ip6-multicast", "ip6-lookup", sw_if_index,
- is_enable, 0, 0);
+ vnet_feature_enable_disable ("ip6-multicast", "ip6-mfib-forward-lookup",
+ sw_if_index, is_enable, 0, 0);
}
@@ -457,6 +460,8 @@ ip6_add_del_interface_address (vlib_main_t * vm,
ip6_address_fib_t ip6_af, *addr_fib = 0;
vec_validate (im->fib_index_by_sw_if_index, sw_if_index);
+ vec_validate (im->mfib_index_by_sw_if_index, sw_if_index);
+
ip6_addr_fib_init (&ip6_af, address,
vec_elt (im->fib_index_by_sw_if_index, sw_if_index));
vec_add1 (addr_fib, ip6_af);
@@ -611,12 +616,12 @@ VNET_FEATURE_ARC_INIT (ip6_multicast, static) =
VNET_FEATURE_INIT (ip6_vpath_mc, static) = {
.arc_name = "ip6-multicast",
.node_name = "vpath-input-ip6",
- .runs_before = VNET_FEATURES ("ip6-lookup"),
+ .runs_before = VNET_FEATURES ("ip6-mfib-forward-lookup"),
};
VNET_FEATURE_INIT (ip6_mc_lookup, static) = {
.arc_name = "ip6-multicast",
- .node_name = "ip6-lookup",
+ .node_name = "ip6-mfib-forward-lookup",
.runs_before = VNET_FEATURES ("ip6-drop"),
};
@@ -1122,22 +1127,6 @@ VLIB_REGISTER_NODE (ip6_punt_node, static) =
VLIB_NODE_FUNCTION_MULTIARCH (ip6_punt_node, ip6_punt);
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (ip6_multicast_node, static) =
-{
- .function = ip6_drop,
- .name = "ip6-multicast",
- .vector_size = sizeof (u32),
- .format_trace = format_ip6_forward_next_trace,
- .n_next_nodes = 1,
- .next_nodes =
- {
- [0] = "error-drop",
- },
-};
-
-/* *INDENT-ON* */
-
/* Compute TCP/UDP/ICMP6 checksum in software. */
u16
ip6_tcp_udp_icmp_compute_checksum (vlib_main_t * vm, vlib_buffer_t * p0,
@@ -1977,7 +1966,7 @@ typedef enum
always_inline uword
ip6_rewrite_inline (vlib_main_t * vm,
vlib_node_runtime_t * node,
- vlib_frame_t * frame, int is_midchain)
+ vlib_frame_t * frame, int is_midchain, int is_mcast)
{
ip_lookup_main_t *lm = &ip6_main.lookup_main;
u32 *from = vlib_frame_vector_args (frame);
@@ -2165,6 +2154,14 @@ ip6_rewrite_inline (vlib_main_t * vm,
adj0->sub_type.midchain.fixup_func (vm, adj0, p0);
adj1->sub_type.midchain.fixup_func (vm, adj1, p1);
}
+ if (is_mcast)
+ {
+ /*
+ * copy bytes from the IP address into the MAC rewrite
+ */
+ vnet_fixup_one_header (adj0[0], &ip0->dst_address, ip0, 0);
+ vnet_fixup_one_header (adj1[0], &ip1->dst_address, ip1, 0);
+ }
vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
to_next, n_left_to_next,
@@ -2265,6 +2262,10 @@ ip6_rewrite_inline (vlib_main_t * vm,
{
adj0->sub_type.midchain.fixup_func (vm, adj0, p0);
}
+ if (is_mcast)
+ {
+ vnet_fixup_one_header (adj0[0], &ip0->dst_address, ip0, 0);
+ }
p0->error = error_node->errors[error0];
@@ -2292,16 +2293,21 @@ static uword
ip6_rewrite (vlib_main_t * vm,
vlib_node_runtime_t * node, vlib_frame_t * frame)
{
- return ip6_rewrite_inline (vm, node, frame,
- /* midchain */ 0);
+ return ip6_rewrite_inline (vm, node, frame, 0, 0);
+}
+
+static uword
+ip6_rewrite_mcast (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
+{
+ return ip6_rewrite_inline (vm, node, frame, 0, 1);
}
static uword
ip6_midchain (vlib_main_t * vm,
vlib_node_runtime_t * node, vlib_frame_t * frame)
{
- return ip6_rewrite_inline (vm, node, frame,
- /* midchain */ 1);
+ return ip6_rewrite_inline (vm, node, frame, 1, 0);
}
/* *INDENT-OFF* */
@@ -2335,10 +2341,22 @@ VLIB_REGISTER_NODE (ip6_rewrite_node) =
VLIB_NODE_FUNCTION_MULTIARCH (ip6_rewrite_node, ip6_rewrite);
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (ip6_rewrite_mcast_node) =
+{
+ .function = ip6_rewrite_mcast,
+ .name = "ip6-rewrite-mcast",
+ .vector_size = sizeof (u32),
+ .format_trace = format_ip6_rewrite_trace,
+ .sibling_of = "ip6-rewrite",
+};
+/* *INDENT-ON* */
+
+VLIB_NODE_FUNCTION_MULTIARCH (ip6_rewrite_mcast_node, ip6_rewrite_mcast);
+
/*
* Hop-by-Hop handling
*/
-
ip6_hop_by_hop_main_t ip6_hop_by_hop_main;
#define foreach_ip6_hop_by_hop_error \
@@ -2346,13 +2364,15 @@ _(PROCESSED, "pkts with ip6 hop-by-hop options") \
_(FORMAT, "incorrectly formatted hop-by-hop options") \
_(UNKNOWN_OPTION, "unknown ip6 hop-by-hop options")
+/* *INDENT-OFF* */
typedef enum
{
#define _(sym,str) IP6_HOP_BY_HOP_ERROR_##sym,
foreach_ip6_hop_by_hop_error
#undef _
- IP6_HOP_BY_HOP_N_ERROR,
+ IP6_HOP_BY_HOP_N_ERROR,
} ip6_hop_by_hop_error_t;
+/* *INDENT-ON* */
/*
* Primary h-b-h handler trace support
@@ -2878,6 +2898,7 @@ ip6_lookup_init (vlib_main_t * vm)
/* Create FIB with index 0 and table id of 0. */
fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP6, 0);
+ mfib_table_find_or_create_and_lock (FIB_PROTOCOL_IP6, 0);
{
pg_node_t *pn;
@@ -2955,6 +2976,12 @@ add_del_ip6_interface_table (vlib_main_t * vm,
vec_validate (ip6_main.fib_index_by_sw_if_index, sw_if_index);
ip6_main.fib_index_by_sw_if_index[sw_if_index] = fib_index;
+
+ fib_index = mfib_table_find_or_create_and_lock (FIB_PROTOCOL_IP6,
+ table_id);
+
+ vec_validate (ip6_main.mfib_index_by_sw_if_index, sw_if_index);
+ ip6_main.mfib_index_by_sw_if_index[sw_if_index] = fib_index;
}
diff --git a/src/vnet/ip/ip6_input.c b/src/vnet/ip/ip6_input.c
index bbc2cebaa39..20306088611 100644
--- a/src/vnet/ip/ip6_input.c
+++ b/src/vnet/ip/ip6_input.c
@@ -64,6 +64,7 @@ typedef enum
{
IP6_INPUT_NEXT_DROP,
IP6_INPUT_NEXT_LOOKUP,
+ IP6_INPUT_NEXT_LOOKUP_MULTICAST,
IP6_INPUT_NEXT_ICMP_ERROR,
IP6_INPUT_N_NEXT,
} ip6_input_next_t;
@@ -142,12 +143,27 @@ ip6_input (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame)
sw_if_index0 = vnet_buffer (p0)->sw_if_index[VLIB_RX];
sw_if_index1 = vnet_buffer (p1)->sw_if_index[VLIB_RX];
- arc0 =
- ip6_address_is_multicast (&ip0->dst_address) ?
- lm->mcast_feature_arc_index : lm->ucast_feature_arc_index;
- arc1 =
- ip6_address_is_multicast (&ip1->dst_address) ?
- lm->mcast_feature_arc_index : lm->ucast_feature_arc_index;
+ if (PREDICT_FALSE (ip6_address_is_multicast (&ip0->dst_address)))
+ {
+ arc0 = lm->mcast_feature_arc_index;
+ next0 = IP6_INPUT_NEXT_LOOKUP_MULTICAST;
+ }
+ else
+ {
+ arc0 = lm->ucast_feature_arc_index;
+ next0 = IP6_INPUT_NEXT_LOOKUP;
+ }
+
+ if (PREDICT_FALSE (ip6_address_is_multicast (&ip1->dst_address)))
+ {
+ arc1 = lm->mcast_feature_arc_index;
+ next1 = IP6_INPUT_NEXT_LOOKUP_MULTICAST;
+ }
+ else
+ {
+ arc1 = lm->ucast_feature_arc_index;
+ next1 = IP6_INPUT_NEXT_LOOKUP;
+ }
vnet_buffer (p0)->ip.adj_index[VLIB_RX] = ~0;
vnet_buffer (p1)->ip.adj_index[VLIB_RX] = ~0;
@@ -240,9 +256,17 @@ ip6_input (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame)
ip0 = vlib_buffer_get_current (p0);
sw_if_index0 = vnet_buffer (p0)->sw_if_index[VLIB_RX];
- arc0 =
- ip6_address_is_multicast (&ip0->dst_address) ?
- lm->mcast_feature_arc_index : lm->ucast_feature_arc_index;
+ if (PREDICT_FALSE (ip6_address_is_multicast (&ip0->dst_address)))
+ {
+ arc0 = lm->mcast_feature_arc_index;
+ next0 = IP6_INPUT_NEXT_LOOKUP_MULTICAST;
+ }
+ else
+ {
+ arc0 = lm->ucast_feature_arc_index;
+ next0 = IP6_INPUT_NEXT_LOOKUP;
+ }
+
vnet_buffer (p0)->ip.adj_index[VLIB_RX] = ~0;
vnet_feature_arc_start (arc0, sw_if_index0, &next0, p0);
@@ -313,6 +337,7 @@ VLIB_REGISTER_NODE (ip6_input_node) = {
[IP6_INPUT_NEXT_DROP] = "error-drop",
[IP6_INPUT_NEXT_LOOKUP] = "ip6-lookup",
[IP6_INPUT_NEXT_ICMP_ERROR] = "ip6-icmp-error",
+ [IP6_INPUT_NEXT_LOOKUP_MULTICAST] = "ip6-mfib-forward-lookup",
},
.format_buffer = format_ip6_header,
diff --git a/src/vnet/ip/ip6_neighbor.c b/src/vnet/ip/ip6_neighbor.c
index 46c0e3168c0..46d04769a96 100644
--- a/src/vnet/ip/ip6_neighbor.c
+++ b/src/vnet/ip/ip6_neighbor.c
@@ -21,6 +21,7 @@
#include <vppinfra/mhash.h>
#include <vppinfra/md5.h>
#include <vnet/adj/adj.h>
+#include <vnet/adj/adj_mcast.h>
#include <vnet/fib/fib_table.h>
#include <vnet/fib/ip6_fib.h>
@@ -116,9 +117,7 @@ typedef struct
u32 seed;
u64 randomizer;
int ref_count;
- adj_index_t all_nodes_adj_index;
- adj_index_t all_routers_adj_index;
- adj_index_t all_mldv2_routers_adj_index;
+ adj_index_t mcast_adj_index;
/* timing information */
#define DEF_MAX_RADV_INTERVAL 200
@@ -474,33 +473,72 @@ ip6_ethernet_update_adjacency (vnet_main_t * vnm, u32 sw_if_index, u32 ai)
nbr = ip6_nd_find (sw_if_index, &adj->sub_type.nbr.next_hop.ip6);
- if (NULL != nbr)
- {
- adj_nbr_walk_nh6 (sw_if_index, &nbr->key.ip6_address,
- ip6_nd_mk_complete_walk, nbr);
- }
- else
+ switch (adj->lookup_next_index)
{
+ case IP_LOOKUP_NEXT_ARP:
+ case IP_LOOKUP_NEXT_GLEAN:
+ if (NULL != nbr)
+ {
+ adj_nbr_walk_nh6 (sw_if_index, &nbr->key.ip6_address,
+ ip6_nd_mk_complete_walk, nbr);
+ }
+ else
+ {
+ /*
+ * no matching ND entry.
+ * construct the rewrite required to for an ND packet, and stick
+ * that in the adj's pipe to smoke.
+ */
+ adj_nbr_update_rewrite (ai,
+ ADJ_NBR_REWRITE_FLAG_INCOMPLETE,
+ ethernet_build_rewrite (vnm,
+ sw_if_index,
+ VNET_LINK_IP6,
+ VNET_REWRITE_FOR_SW_INTERFACE_ADDRESS_BROADCAST));
+
+ /*
+ * since the FIB has added this adj for a route, it makes sense it may
+ * want to forward traffic sometime soon. Let's send a speculative ND.
+ * just one. If we were to do periodically that wouldn't be bad either,
+ * but that's more code than i'm prepared to write at this time for
+ * relatively little reward.
+ */
+ ip6_nbr_probe (adj);
+ }
+ break;
+ case IP_LOOKUP_NEXT_MCAST:
/*
- * no matching ND entry.
- * construct the rewrite required to for an ND packet, and stick
- * that in the adj's pipe to smoke.
+ * Construct a partial rewrite from the known ethernet mcast dest MAC
*/
- adj_nbr_update_rewrite (ai,
- ADJ_NBR_REWRITE_FLAG_INCOMPLETE,
- ethernet_build_rewrite (vnm,
- sw_if_index,
- VNET_LINK_IP6,
- VNET_REWRITE_FOR_SW_INTERFACE_ADDRESS_BROADCAST));
+ adj_mcast_update_rewrite
+ (ai,
+ ethernet_build_rewrite (vnm,
+ sw_if_index,
+ adj->ia_link,
+ ethernet_ip6_mcast_dst_addr ()));
/*
- * since the FIB has added this adj for a route, it makes sense it may
- * want to forward traffic sometime soon. Let's send a speculative ND.
- * just one. If we were to do periodically that wouldn't be bad either,
- * but that's more code than i'm prepared to write at this time for
- * relatively little reward.
+ * Complete the remaining fields of the adj's rewrite to direct the
+ * complete of the rewrite at switch time by copying in the IP
+ * dst address's bytes.
+ * Ofset is 12 bytes from the end of the MAC header - which is 2
+ * bytes into the desintation address. And we write 4 bytes.
*/
- ip6_nbr_probe (adj);
+ adj->rewrite_header.dst_mcast_offset = 12;
+ adj->rewrite_header.dst_mcast_n_bytes = 4;
+
+ break;
+
+ case IP_LOOKUP_NEXT_DROP:
+ case IP_LOOKUP_NEXT_PUNT:
+ case IP_LOOKUP_NEXT_LOCAL:
+ case IP_LOOKUP_NEXT_REWRITE:
+ case IP_LOOKUP_NEXT_LOAD_BALANCE:
+ case IP_LOOKUP_NEXT_MIDCHAIN:
+ case IP_LOOKUP_NEXT_ICMP_ERROR:
+ case IP_LOOKUP_N_NEXT:
+ ASSERT (0);
+ break;
}
}
@@ -1517,7 +1555,7 @@ icmp6_router_solicitation (vlib_main_t * vm,
}
else
{
- adj_index0 = radv_info->all_nodes_adj_index;
+ adj_index0 = radv_info->mcast_adj_index;
if (adj_index0 == 0)
error0 = ICMP6_ERROR_DST_LOOKUP_MISS;
else
@@ -1918,10 +1956,8 @@ ip6_neighbor_sw_interface_add_del (vnet_main_t * vnm,
ip6_radv_prefix_t *p;
ip6_mldp_group_t *m;
- /* remove adjacencies */
- adj_unlock (a->all_nodes_adj_index);
- adj_unlock (a->all_routers_adj_index);
- adj_unlock (a->all_mldv2_routers_adj_index);
+ /* release the lock on the interface's mcast adj */
+ adj_unlock (a->mcast_adj_index);
/* clean up prefix_pool */
/* *INDENT-OFF* */
@@ -2017,36 +2053,9 @@ ip6_neighbor_sw_interface_add_del (vnet_main_t * vnm,
mhash_init (&a->address_to_mldp_index, sizeof (uword),
sizeof (ip6_address_t));
- {
- u8 link_layer_address[6] = { 0x33, 0x33, 0x00, 0x00, 0x00,
- IP6_MULTICAST_GROUP_ID_all_hosts
- };
-
- a->all_nodes_adj_index =
- adj_rewrite_add_and_lock (FIB_PROTOCOL_IP6, VNET_LINK_IP6,
- sw_if_index, link_layer_address);
- }
-
- {
- u8 link_layer_address[6] = { 0x33, 0x33, 0x00, 0x00, 0x00,
- IP6_MULTICAST_GROUP_ID_all_routers
- };
-
- a->all_routers_adj_index =
- adj_rewrite_add_and_lock (FIB_PROTOCOL_IP6, VNET_LINK_IP6,
- sw_if_index, link_layer_address);
- }
-
- {
- u8 link_layer_address[6] = { 0x33, 0x33, 0x00, 0x00, 0x00,
- IP6_MULTICAST_GROUP_ID_mldv2_routers
- };
-
- a->all_mldv2_routers_adj_index =
- adj_rewrite_add_and_lock (FIB_PROTOCOL_IP6,
- VNET_LINK_IP6,
- sw_if_index, link_layer_address);
- }
+ a->mcast_adj_index = adj_mcast_add_or_lock (FIB_PROTOCOL_IP6,
+ VNET_LINK_IP6,
+ sw_if_index);
/* add multicast groups we will always be reporting */
ip6_address_t addr;
@@ -2273,11 +2282,10 @@ ip6_neighbor_send_mldpv2_report (u32 sw_if_index)
vnet_buffer (b0)->sw_if_index[VLIB_RX] =
vnet_main.local_interface_sw_if_index;
- vnet_buffer (b0)->ip.adj_index[VLIB_TX] =
- radv_info->all_mldv2_routers_adj_index;
+ vnet_buffer (b0)->ip.adj_index[VLIB_TX] = radv_info->mcast_adj_index;
b0->flags |= VNET_BUFFER_LOCALLY_ORIGINATED;
- vlib_node_t *node = vlib_get_node_by_name (vm, (u8 *) "ip6-rewrite");
+ vlib_node_t *node = vlib_get_node_by_name (vm, (u8 *) "ip6-rewrite-mcast");
f = vlib_get_frame_to_node (vm, node->index);
to_next = vlib_frame_vector_args (f);
@@ -2301,7 +2309,7 @@ VLIB_REGISTER_NODE (ip6_icmp_router_solicitation_node,static) =
.n_next_nodes = ICMP6_ROUTER_SOLICITATION_N_NEXT,
.next_nodes = {
[ICMP6_ROUTER_SOLICITATION_NEXT_DROP] = "error-drop",
- [ICMP6_ROUTER_SOLICITATION_NEXT_REPLY_RW] = "ip6-rewrite",
+ [ICMP6_ROUTER_SOLICITATION_NEXT_REPLY_RW] = "ip6-rewrite-mcast",
[ICMP6_ROUTER_SOLICITATION_NEXT_REPLY_TX] = "interface-output",
},
};
diff --git a/src/vnet/ip/ip_api.c b/src/vnet/ip/ip_api.c
index aafde464445..437d26749cd 100644
--- a/src/vnet/ip/ip_api.c
+++ b/src/vnet/ip/ip_api.c
@@ -33,6 +33,9 @@
#include <vnet/dpo/classify_dpo.h>
#include <vnet/dpo/ip_null_dpo.h>
#include <vnet/ethernet/arp_packet.h>
+//#include <vnet/mfib/ip6_mfib.h>
+#include <vnet/mfib/ip4_mfib.h>
+#include <vnet/mfib/mfib_signal.h>
#include <vnet/vnet_msg_enum.h>
@@ -58,6 +61,8 @@ _(IP_FIB_DETAILS, ip_fib_details) \
_(IP6_FIB_DUMP, ip6_fib_dump) \
_(IP6_FIB_DETAILS, ip6_fib_details) \
_(IP_NEIGHBOR_DUMP, ip_neighbor_dump) \
+_(IP_MROUTE_ADD_DEL, ip_mroute_add_del) \
+_(MFIB_SIGNAL_DUMP, mfib_signal_dump) \
_(IP_NEIGHBOR_DETAILS, ip_neighbor_details) \
_(IP_ADDRESS_DUMP, ip_address_dump) \
_(IP_DUMP, ip_dump) \
@@ -845,6 +850,144 @@ vl_api_ip_add_del_route_t_handler (vl_api_ip_add_del_route_t * mp)
REPLY_MACRO (VL_API_IP_ADD_DEL_ROUTE_REPLY);
}
+static int
+add_del_mroute_check (fib_protocol_t table_proto,
+ u32 table_id,
+ u32 next_hop_sw_if_index,
+ u8 is_local, u8 create_missing_tables, u32 * fib_index)
+{
+ vnet_main_t *vnm = vnet_get_main ();
+
+ *fib_index = mfib_table_find (table_proto, ntohl (table_id));
+ if (~0 == *fib_index)
+ {
+ if (create_missing_tables)
+ {
+ *fib_index = mfib_table_find_or_create_and_lock (table_proto,
+ ntohl (table_id));
+ }
+ else
+ {
+ /* No such VRF, and we weren't asked to create one */
+ return VNET_API_ERROR_NO_SUCH_FIB;
+ }
+ }
+
+ if (~0 != ntohl (next_hop_sw_if_index))
+ {
+ if (pool_is_free_index (vnm->interface_main.sw_interfaces,
+ ntohl (next_hop_sw_if_index)))
+ {
+ return VNET_API_ERROR_NO_MATCHING_INTERFACE;
+ }
+ }
+
+ return (0);
+}
+
+static int
+mroute_add_del_handler (u8 is_add,
+ u8 is_local,
+ u32 fib_index,
+ const mfib_prefix_t * prefix,
+ u32 entry_flags,
+ u32 next_hop_sw_if_index, u32 itf_flags)
+{
+ stats_dslock_with_hint (1 /* release hint */ , 2 /* tag */ );
+
+ fib_route_path_t path = {
+ .frp_sw_if_index = next_hop_sw_if_index,
+ .frp_proto = prefix->fp_proto,
+ };
+
+ if (is_local)
+ path.frp_flags |= FIB_ROUTE_PATH_LOCAL;
+
+
+ if (!is_local && ~0 == next_hop_sw_if_index)
+ {
+ mfib_table_entry_update (fib_index, prefix,
+ MFIB_SOURCE_API, entry_flags);
+ }
+ else
+ {
+ if (is_add)
+ {
+ mfib_table_entry_path_update (fib_index, prefix,
+ MFIB_SOURCE_API, &path, itf_flags);
+ }
+ else
+ {
+ mfib_table_entry_path_remove (fib_index, prefix,
+ MFIB_SOURCE_API, &path);
+ }
+ }
+
+ stats_dsunlock ();
+ return (0);
+}
+
+static int
+api_mroute_add_del_t_handler (vl_api_ip_mroute_add_del_t * mp)
+{
+ fib_protocol_t fproto;
+ u32 fib_index;
+ int rv;
+
+ fproto = (mp->is_ipv6 ? FIB_PROTOCOL_IP6 : FIB_PROTOCOL_IP4);
+ rv = add_del_mroute_check (fproto,
+ mp->table_id,
+ mp->next_hop_sw_if_index,
+ mp->is_local,
+ mp->create_vrf_if_needed, &fib_index);
+
+ if (0 != rv)
+ return (rv);
+
+ mfib_prefix_t pfx = {
+ .fp_len = ntohs (mp->grp_address_length),
+ .fp_proto = fproto,
+ };
+
+ if (FIB_PROTOCOL_IP4 == fproto)
+ {
+ clib_memcpy (&pfx.fp_grp_addr.ip4, mp->grp_address,
+ sizeof (pfx.fp_grp_addr.ip4));
+ clib_memcpy (&pfx.fp_src_addr.ip4, mp->src_address,
+ sizeof (pfx.fp_src_addr.ip4));
+ }
+ else
+ {
+ clib_memcpy (&pfx.fp_grp_addr.ip6, mp->grp_address,
+ sizeof (pfx.fp_grp_addr.ip6));
+ clib_memcpy (&pfx.fp_src_addr.ip6, mp->src_address,
+ sizeof (pfx.fp_src_addr.ip6));
+ }
+
+ return (mroute_add_del_handler (mp->is_add,
+ mp->is_local,
+ fib_index, &pfx,
+ ntohl (mp->entry_flags),
+ ntohl (mp->next_hop_sw_if_index),
+ ntohl (mp->itf_flags)));
+}
+
+void
+vl_api_ip_mroute_add_del_t_handler (vl_api_ip_mroute_add_del_t * mp)
+{
+ vl_api_ip_mroute_add_del_reply_t *rmp;
+ int rv;
+ vnet_main_t *vnm = vnet_get_main ();
+
+ vnm->api_errno = 0;
+
+ rv = api_mroute_add_del_t_handler (mp);
+
+ rv = (rv == 0) ? vnm->api_errno : rv;
+
+ REPLY_MACRO (VL_API_IP_MROUTE_ADD_DEL_REPLY);
+}
+
static void
send_ip_details (vpe_api_main_t * am,
unix_shared_memory_queue_t * q, u32 sw_if_index, u32 context)
@@ -1148,6 +1291,73 @@ static void
REPLY_MACRO (VL_API_SW_INTERFACE_IP6_SET_LINK_LOCAL_ADDRESS_REPLY);
}
+void
+vl_mfib_signal_send_one (unix_shared_memory_queue_t * q,
+ u32 context, const mfib_signal_t * mfs)
+{
+ vl_api_mfib_signal_details_t *mp;
+ mfib_prefix_t prefix;
+ mfib_table_t *mfib;
+ mfib_itf_t *mfi;
+
+ mp = vl_msg_api_alloc (sizeof (*mp));
+
+ memset (mp, 0, sizeof (*mp));
+ mp->_vl_msg_id = ntohs (VL_API_MFIB_SIGNAL_DETAILS);
+ mp->context = context;
+
+ mfi = mfib_itf_get (mfs->mfs_itf);
+ mfib_entry_get_prefix (mfs->mfs_entry, &prefix);
+ mfib = mfib_table_get (mfib_entry_get_fib_index (mfs->mfs_entry),
+ prefix.fp_proto);
+ mp->table_id = ntohl (mfib->mft_table_id);
+ mp->sw_if_index = ntohl (mfi->mfi_sw_if_index);
+
+ if (FIB_PROTOCOL_IP4 == prefix.fp_proto)
+ {
+ mp->grp_address_len = ntohs (prefix.fp_len);
+
+ memcpy (mp->grp_address, &prefix.fp_grp_addr.ip4, 4);
+ if (prefix.fp_len > 32)
+ {
+ memcpy (mp->src_address, &prefix.fp_src_addr.ip4, 4);
+ }
+ }
+ else
+ {
+ mp->grp_address_len = ntohs (prefix.fp_len);
+
+ ASSERT (0);
+ }
+
+ if (0 != mfs->mfs_buffer_len)
+ {
+ mp->ip_packet_len = ntohs (mfs->mfs_buffer_len);
+
+ memcpy (mp->ip_packet_data, mfs->mfs_buffer, mfs->mfs_buffer_len);
+ }
+ else
+ {
+ mp->ip_packet_len = 0;
+ }
+
+ vl_msg_api_send_shmem (q, (u8 *) & mp);
+}
+
+static void
+vl_api_mfib_signal_dump_t_handler (vl_api_mfib_signal_dump_t * mp)
+{
+ unix_shared_memory_queue_t *q;
+
+ q = vl_api_client_index_to_input_queue (mp->client_index);
+ if (q == 0)
+ {
+ return;
+ }
+
+ while (q->cursize < q->maxsize && mfib_signal_send_one (q, mp->context))
+ ;
+}
#define vl_msg_name_crc_list
#include <vnet/ip/ip.api.h>
diff --git a/src/vnet/ip/lookup.c b/src/vnet/ip/lookup.c
index 734a4cd7cfb..6c5611d3955 100644
--- a/src/vnet/ip/lookup.c
+++ b/src/vnet/ip/lookup.c
@@ -43,6 +43,7 @@
#include <vnet/fib/ip4_fib.h>
#include <vnet/fib/ip6_fib.h>
#include <vnet/mpls/mpls.h>
+#include <vnet/mfib/mfib_table.h>
#include <vnet/dpo/drop_dpo.h>
#include <vnet/dpo/classify_dpo.h>
#include <vnet/dpo/punt_dpo.h>
@@ -258,6 +259,9 @@ format_ip_lookup_next (u8 * s, va_list * args)
case IP_LOOKUP_NEXT_GLEAN:
t = "glean";
break;
+ case IP_LOOKUP_NEXT_MCAST:
+ t = "mcast";
+ break;
case IP_LOOKUP_NEXT_REWRITE:
break;
}
@@ -767,6 +771,173 @@ VLIB_CLI_COMMAND (ip_route_command, static) = {
};
/* *INDENT-ON* */
+clib_error_t *
+vnet_ip_mroute_cmd (vlib_main_t * vm,
+ unformat_input_t * main_input, vlib_cli_command_t * cmd)
+{
+ unformat_input_t _line_input, *line_input = &_line_input;
+ clib_error_t *error = NULL;
+ fib_route_path_t rpath;
+ u32 table_id, is_del;
+ vnet_main_t *vnm;
+ mfib_prefix_t pfx;
+ u32 fib_index;
+ mfib_itf_flags_t iflags = 0;
+ mfib_entry_flags_t eflags = 0;
+
+ vnm = vnet_get_main ();
+ is_del = 0;
+ table_id = 0;
+ memset (&pfx, 0, sizeof (pfx));
+ memset (&rpath, 0, sizeof (rpath));
+ rpath.frp_sw_if_index = ~0;
+
+ /* Get a line of input. */
+ if (!unformat_user (main_input, unformat_line_input, line_input))
+ return 0;
+
+ while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (line_input, "table %d", &table_id))
+ ;
+ else if (unformat (line_input, "del"))
+ is_del = 1;
+ else if (unformat (line_input, "add"))
+ is_del = 0;
+ else if (unformat (line_input, "%U %U",
+ unformat_ip4_address,
+ &pfx.fp_src_addr.ip4,
+ unformat_ip4_address, &pfx.fp_grp_addr.ip4))
+ {
+ pfx.fp_proto = FIB_PROTOCOL_IP4;
+ pfx.fp_len = 64;
+ }
+ else if (unformat (line_input, "%U %U",
+ unformat_ip6_address,
+ &pfx.fp_src_addr.ip6,
+ unformat_ip6_address, &pfx.fp_grp_addr.ip6))
+ {
+ pfx.fp_proto = FIB_PROTOCOL_IP6;
+ pfx.fp_len = 256;
+ }
+ else if (unformat (line_input, "%U/%d",
+ unformat_ip4_address,
+ &pfx.fp_grp_addr.ip4, &pfx.fp_len))
+ {
+ pfx.fp_proto = FIB_PROTOCOL_IP4;
+ }
+ else if (unformat (line_input, "%U/%d",
+ unformat_ip6_address,
+ &pfx.fp_grp_addr.ip6, &pfx.fp_len))
+ {
+ pfx.fp_proto = FIB_PROTOCOL_IP6;
+ }
+ else if (unformat (line_input, "%U",
+ unformat_ip4_address, &pfx.fp_grp_addr.ip4))
+ {
+ memset (&pfx.fp_src_addr.ip4, 0, sizeof (pfx.fp_src_addr.ip4));
+ pfx.fp_proto = FIB_PROTOCOL_IP4;
+ pfx.fp_len = 32;
+ }
+ else if (unformat (line_input, "%U",
+ unformat_ip6_address, &pfx.fp_grp_addr.ip6))
+ {
+ memset (&pfx.fp_src_addr.ip6, 0, sizeof (pfx.fp_src_addr.ip6));
+ pfx.fp_proto = FIB_PROTOCOL_IP6;
+ pfx.fp_len = 128;
+ }
+ else if (unformat (line_input, "via %U",
+ unformat_vnet_sw_interface, vnm,
+ &rpath.frp_sw_if_index))
+ {
+ rpath.frp_weight = 1;
+ rpath.frp_proto = FIB_PROTOCOL_IP4;
+ }
+ else if (unformat (line_input, "%U", unformat_mfib_itf_flags, &iflags))
+ ;
+ else if (unformat (line_input, "%U",
+ unformat_mfib_entry_flags, &eflags))
+ ;
+ else
+ {
+ error = unformat_parse_error (line_input);
+ goto done;
+ }
+ }
+
+ unformat_free (line_input);
+
+ if (~0 == table_id)
+ {
+ /*
+ * if no table_id is passed we will manipulate the default
+ */
+ fib_index = 0;
+ }
+ else
+ {
+ fib_index = mfib_table_find (pfx.fp_proto, table_id);
+
+ if (~0 == fib_index)
+ {
+ error = clib_error_return (0, "Nonexistent table id %d", table_id);
+ goto done;
+ }
+ }
+
+ if (is_del && 0 == rpath.frp_weight)
+ {
+ mfib_table_entry_delete (fib_index, &pfx, MFIB_SOURCE_CLI);
+ }
+ else if (eflags)
+ {
+ mfib_table_entry_update (fib_index, &pfx, MFIB_SOURCE_CLI, eflags);
+ }
+ else
+ {
+ if (is_del)
+ mfib_table_entry_path_remove (fib_index,
+ &pfx, MFIB_SOURCE_CLI, &rpath);
+ else
+ mfib_table_entry_path_update (fib_index,
+ &pfx, MFIB_SOURCE_CLI, &rpath, iflags);
+ }
+
+done:
+ return error;
+}
+
+/*?
+ * This command is used to add or delete IPv4 or IPv6 multicastroutes. All
+ * IP Addresses ('<em><dst-ip-addr>/<width></em>',
+ * '<em><next-hop-ip-addr></em>' and '<em><adj-hop-ip-addr></em>')
+ * can be IPv4 or IPv6, but all must be of the same form in a single
+ * command. To display the current set of routes, use the commands
+ * '<em>show ip mfib</em>' and '<em>show ip6 mfib</em>'.
+ * The full set of support flags for interfaces and route is shown via;
+ * '<em>show mfib route flags</em>' and '<em>show mfib itf flags</em>'
+ * respectively.
+ * @cliexpar
+ * Example of how to add a forwarding interface to a route (and create the
+ * route if it does not exist)
+ * @cliexcmd{ip mroute add 232.1.1.1 via GigabitEthernet2/0/0 Forward}
+ * Example of how to add an accepting interface to a route (and create the
+ * route if it does not exist)
+ * @cliexcmd{ip mroute add 232.1.1.1 via GigabitEthernet2/0/1 Accept}
+ * Example of changing the route's flags to send signals via the API
+ * @cliexcmd{ip mroute add 232.1.1.1 Signal}
+
+ ?*/
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (ip_mroute_command, static) =
+{
+ .path = "ip mroute",
+ .short_help = "ip mroute [add|del] <dst-ip-addr>/<width> [table <table-id>] [via <next-hop-ip-addr> [<interface>],",
+ .function = vnet_ip_mroute_cmd,
+ .is_mp_safe = 1,
+};
+/* *INDENT-ON* */
+
/*
* The next two routines address a longstanding script hemorrhoid.
* Probing a v4 or v6 neighbor needs to appear to be synchronous,
diff --git a/src/vnet/ip/lookup.h b/src/vnet/ip/lookup.h
index 3dbd7b3b8e8..27c70943991 100644
--- a/src/vnet/ip/lookup.h
+++ b/src/vnet/ip/lookup.h
@@ -91,6 +91,9 @@ typedef enum
/** This packets needs to go to ICMP error */
IP_LOOKUP_NEXT_ICMP_ERROR,
+ /** Multicast Adjacency. */
+ IP_LOOKUP_NEXT_MCAST,
+
IP_LOOKUP_N_NEXT,
} ip_lookup_next_t;
@@ -115,6 +118,7 @@ typedef enum
[IP_LOOKUP_NEXT_ARP] = "ip4-arp", \
[IP_LOOKUP_NEXT_GLEAN] = "ip4-glean", \
[IP_LOOKUP_NEXT_REWRITE] = "ip4-rewrite", \
+ [IP_LOOKUP_NEXT_MCAST] = "ip4-rewrite-mcast", \
[IP_LOOKUP_NEXT_MIDCHAIN] = "ip4-midchain", \
[IP_LOOKUP_NEXT_LOAD_BALANCE] = "ip4-load-balance", \
[IP_LOOKUP_NEXT_ICMP_ERROR] = "ip4-icmp-error", \
@@ -127,6 +131,7 @@ typedef enum
[IP_LOOKUP_NEXT_ARP] = "ip6-discover-neighbor", \
[IP_LOOKUP_NEXT_GLEAN] = "ip6-glean", \
[IP_LOOKUP_NEXT_REWRITE] = "ip6-rewrite", \
+ [IP_LOOKUP_NEXT_MCAST] = "ip6-rewrite-mcast", \
[IP_LOOKUP_NEXT_MIDCHAIN] = "ip6-midchain", \
[IP_LOOKUP_NEXT_LOAD_BALANCE] = "ip6-load-balance", \
[IP_LOOKUP_NEXT_ICMP_ERROR] = "ip6-icmp-error", \
@@ -203,12 +208,6 @@ typedef struct ip_adjacency_t_
/** Interface address index for this local/arp adjacency. */
u32 if_address_index;
- /** Force re-lookup in a different FIB. ~0 => normal behavior */
- u16 mcast_group_index;
-
- /** Highest possible perf subgraph arc interposition, e.g. for ip6 ioam */
- u16 saved_lookup_next_index;
-
/*
* link/ether-type
*/
@@ -236,28 +235,28 @@ typedef struct ip_adjacency_t_
*/
struct
{
- /**
- * The recursive next-hop
- */
+ /**
+ * The recursive next-hop
+ */
ip46_address_t next_hop;
- /**
- * The node index of the tunnel's post rewrite/TX function.
- */
+ /**
+ * The node index of the tunnel's post rewrite/TX function.
+ */
u32 tx_function_node;
- /**
- * The next DPO to use
- */
+ /**
+ * The next DPO to use
+ */
dpo_id_t next_dpo;
- /**
- * A function to perform the post-rewrite fixup
- */
- adj_midchain_fixup_t fixup_func;
- } midchain;
/**
- * IP_LOOKUP_NEXT_GLEAN
- *
- * Glean the address to ARP for from the packet's destination
+ * A function to perform the post-rewrite fixup
*/
+ adj_midchain_fixup_t fixup_func;
+ } midchain;
+ /**
+ * IP_LOOKUP_NEXT_GLEAN
+ *
+ * Glean the address to ARP for from the packet's destination
+ */
struct
{
ip46_address_t receive_addr;
@@ -291,43 +290,6 @@ STATIC_ASSERT ((STRUCT_OFFSET_OF (ip_adjacency_t, cacheline1) ==
/* An all zeros address */
extern const ip46_address_t zero_addr;
-/* IP multicast adjacency. */
-typedef struct
-{
- /* Handle for this adjacency in adjacency heap. */
- u32 heap_handle;
-
- /* Number of adjecencies in block. */
- u32 n_adj;
-
- /* Rewrite string. */
- vnet_declare_rewrite (64 - 2 * sizeof (u32));
-}
-ip_multicast_rewrite_t;
-
-typedef struct
-{
- /* ip4-multicast-rewrite next index. */
- u32 next_index;
-
- u8 n_rewrite_bytes;
-
- u8 rewrite_string[64 - 1 * sizeof (u32) - 1 * sizeof (u8)];
-}
-ip_multicast_rewrite_string_t;
-
-typedef struct
-{
- ip_multicast_rewrite_t *rewrite_heap;
-
- ip_multicast_rewrite_string_t *rewrite_strings;
-
- /* Negative rewrite string index; >= 0 sw_if_index.
- Sorted. Used to hash. */
- i32 **adjacency_id_vector;
-
- uword *adjacency_by_id_vector;
-} ip_multicast_lookup_main_t;
typedef struct
{