diff options
Diffstat (limited to 'src/vnet/mfib')
| -rw-r--r-- | src/vnet/mfib/ip4_mfib.c | 109 | ||||
| -rw-r--r-- | src/vnet/mfib/ip4_mfib.h | 7 | ||||
| -rw-r--r-- | src/vnet/mfib/mfib_types.h | 2 |
3 files changed, 89 insertions, 29 deletions
diff --git a/src/vnet/mfib/ip4_mfib.c b/src/vnet/mfib/ip4_mfib.c index 4da1be61113..6973380ec06 100644 --- a/src/vnet/mfib/ip4_mfib.c +++ b/src/vnet/mfib/ip4_mfib.c @@ -18,16 +18,27 @@ #include <vnet/mfib/mfib_table.h> #include <vnet/mfib/mfib_entry.h> -static const mfib_prefix_t ip4_specials[] = { +static const mfib_prefix_t all_zeros = +{ + .fp_proto = FIB_PROTOCOL_IP4, +}; +static const mfib_prefix_t ip4_specials[] = +{ + /* ALL prefixes are in network order */ { - /* (*,*)/0 */ - .fp_src_addr = { - .ip4.data_u32 = 0, + /* (*,224.0.0.1)/32 - all hosts */ + .fp_grp_addr = { + .ip4.data_u32 = 0x010000e0, }, + .fp_len = 32, + .fp_proto = FIB_PROTOCOL_IP4, + }, + { + /* (*,224.0.0.2)/32 - all routers */ .fp_grp_addr = { - .ip4.data_u32 = 0, + .ip4.data_u32 = 0x020000e0, }, - .fp_len = 0, + .fp_len = 32, .fp_proto = FIB_PROTOCOL_IP4, }, }; @@ -57,24 +68,31 @@ ip4_create_mfib_with_table_id (u32 table_id, mfib_table_lock(mfib_table->mft_index, FIB_PROTOCOL_IP4, src); /* - * add the special entries into the new FIB + * add the default route into the new FIB */ + mfib_table_entry_update(mfib_table->mft_index, + &all_zeros, + MFIB_SOURCE_DEFAULT_ROUTE, + MFIB_RPF_ID_NONE, + MFIB_ENTRY_FLAG_DROP); + + const fib_route_path_t path = { + .frp_proto = DPO_PROTO_IP4, + .frp_addr = zero_addr, + .frp_sw_if_index = ~0, + .frp_fib_index = ~0, + .frp_weight = 1, + .frp_flags = FIB_ROUTE_PATH_LOCAL, + .frp_mitf_flags = MFIB_ITF_FLAG_FORWARD, + }; int ii; for (ii = 0; ii < ARRAY_LEN(ip4_specials); ii++) { - mfib_prefix_t prefix = ip4_specials[ii]; - - prefix.fp_src_addr.ip4.data_u32 = - clib_host_to_net_u32(prefix.fp_src_addr.ip4.data_u32); - prefix.fp_grp_addr.ip4.data_u32 = - clib_host_to_net_u32(prefix.fp_grp_addr.ip4.data_u32); - - mfib_table_entry_update(mfib_table->mft_index, - &prefix, - MFIB_SOURCE_DEFAULT_ROUTE, - MFIB_RPF_ID_NONE, - MFIB_ENTRY_FLAG_DROP); + mfib_table_entry_path_update(mfib_table->mft_index, + &ip4_specials[ii], + MFIB_SOURCE_SPECIAL, + &path); } return (mfib_table->mft_index); @@ -89,18 +107,15 @@ ip4_mfib_table_destroy (ip4_mfib_t *mfib) /* * remove all the specials we added when the table was created. */ + mfib_table_entry_delete(mfib_table->mft_index, + &all_zeros, + MFIB_SOURCE_DEFAULT_ROUTE); + for (ii = 0; ii < ARRAY_LEN(ip4_specials); ii++) { - fib_node_index_t mfei; - mfib_prefix_t prefix = ip4_specials[ii]; - - prefix.fp_src_addr.ip4.data_u32 = - clib_host_to_net_u32(prefix.fp_src_addr.ip4.data_u32); - prefix.fp_grp_addr.ip4.data_u32 = - clib_host_to_net_u32(prefix.fp_grp_addr.ip4.data_u32); - - mfei = mfib_table_lookup(mfib_table->mft_index, &prefix); - mfib_table_entry_delete_index(mfei, MFIB_SOURCE_DEFAULT_ROUTE); + mfib_table_entry_delete(mfib_table->mft_index, + &ip4_specials[ii], + MFIB_SOURCE_SPECIAL); } /* @@ -113,6 +128,42 @@ ip4_mfib_table_destroy (ip4_mfib_t *mfib) pool_put(ip4_main.mfibs, mfib_table); } +void +ip4_mfib_interface_enable_disable (u32 sw_if_index, int is_enable) +{ + const fib_route_path_t path = { + .frp_proto = DPO_PROTO_IP4, + .frp_addr = zero_addr, + .frp_sw_if_index = sw_if_index, + .frp_fib_index = ~0, + .frp_weight = 1, + .frp_mitf_flags = MFIB_ITF_FLAG_ACCEPT, + }; + u32 mfib_index; + int ii; + + vec_validate (ip4_main.mfib_index_by_sw_if_index, sw_if_index); + mfib_index = ip4_mfib_table_get_index_for_sw_if_index(sw_if_index); + + for (ii = 0; ii < ARRAY_LEN(ip4_specials); ii++) + { + if (is_enable) + { + mfib_table_entry_path_update(mfib_index, + &ip4_specials[ii], + MFIB_SOURCE_SPECIAL, + &path); + } + else + { + mfib_table_entry_path_remove(mfib_index, + &ip4_specials[ii], + MFIB_SOURCE_SPECIAL, + &path); + } + } +} + u32 ip4_mfib_table_find_or_create_and_lock (u32 table_id, mfib_source_t src) diff --git a/src/vnet/mfib/ip4_mfib.h b/src/vnet/mfib/ip4_mfib.h index 5b225596469..2e263a497d2 100644 --- a/src/vnet/mfib/ip4_mfib.h +++ b/src/vnet/mfib/ip4_mfib.h @@ -56,6 +56,13 @@ extern void ip4_mfib_table_entry_insert(ip4_mfib_t *fib, extern void ip4_mfib_table_destroy(ip4_mfib_t *fib); /** + * @brief + * Add/remove the interface from the accepting list of the special MFIB entries + */ +extern void ip4_mfib_interface_enable_disable(u32 sw_if_index, + int is_enable); + +/** * @brief Get the FIB at the given index */ static inline ip4_mfib_t * diff --git a/src/vnet/mfib/mfib_types.h b/src/vnet/mfib/mfib_types.h index 650a7a5c3f9..edc25fe5b99 100644 --- a/src/vnet/mfib/mfib_types.h +++ b/src/vnet/mfib/mfib_types.h @@ -172,6 +172,7 @@ typedef enum mfib_source_t_ MFIB_SOURCE_GENEVE, MFIB_SOURCE_IGMP, MFIB_SOURCE_VXLAN_GBP, + MFIB_SOURCE_PLUGIN_LOW, MFIB_SOURCE_RR, MFIB_SOURCE_DEFAULT_ROUTE, } mfib_source_t; @@ -189,6 +190,7 @@ typedef enum mfib_source_t_ [MFIB_SOURCE_GENEVE] = "Geneve", \ [MFIB_SOURCE_IGMP] = "IGMP", \ [MFIB_SOURCE_VXLAN_GBP] = "VXLAN-GBP", \ + [MFIB_SOURCE_PLUGIN_LOW] = "plugin-low", \ [MFIB_SOURCE_RR] = "Recursive-resolution", \ [MFIB_SOURCE_DEFAULT_ROUTE] = "Default Route", \ } |