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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/lookup.h
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/lookup.h')
-rw-r--r--src/vnet/ip/lookup.h82
1 files changed, 22 insertions, 60 deletions
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
{