BFD: loop back echo packets - vpp - Vector Packet Processing

diff options

author	Klement Sekera <ksekera@cisco.com>	2017-02-14 07:11:52 +0100
committer	Damjan Marion <dmarion.lists@gmail.com>	2017-02-15 12:10:23 +0000
commit	aeeac3bf4429235c952ce54abad7d3729be6a2f5 (patch)
tree	cbdd7eb65a86687988557f87f92ecde6ed0f97b8 /src/plugins/ioam
parent	12ba252193148c06137a4f811aee71fec0801ea4 (diff)

BFD: loop back echo packets

Change-Id: I772b63ac25ebfccaff9ab9d8d0b1445e85f21df7 Signed-off-by: Klement Sekera <ksekera@cisco.com>

Diffstat (limited to 'src/plugins/ioam')

0 files changed, 0 insertions, 0 deletions

/* *------------------------------------------------------------------ * interface_api.c - vnet interface api * * 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 <vnet/vnet.h> #include <vlibmemory/api.h> #include <vnet/interface.h> #include <vnet/api_errno.h> #include <vnet/ethernet/ethernet.h> #include <vnet/ip/ip.h> #include <vnet/fib/fib_table.h> #include <vnet/mfib/mfib_table.h> #include <vnet/l2/l2_vtr.h> #include <vnet/vnet_msg_enum.h> #include <vnet/fib/fib_api.h> #include <vnet/mfib/mfib_table.h> #define vl_typedefs /* define message structures */ #include <vnet/vnet_all_api_h.h> #undef vl_typedefs #define vl_endianfun /* define message structures */ #include <vnet/vnet_all_api_h.h> #undef vl_endianfun /* instantiate all the print functions we know about */ #define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__) #define vl_printfun #include <vnet/vnet_all_api_h.h> #undef vl_printfun #include <vlibapi/api_helper_macros.h> vpe_api_main_t vpe_api_main; #define foreach_vpe_api_msg \ _(SW_INTERFACE_SET_FLAGS, sw_interface_set_flags) \ _(SW_INTERFACE_SET_MTU, sw_interface_set_mtu) \ _(WANT_INTERFACE_EVENTS, want_interface_events) \ _(SW_INTERFACE_DUMP, sw_interface_dump) \ _(SW_INTERFACE_ADD_DEL_ADDRESS, sw_interface_add_del_address) \ _(SW_INTERFACE_SET_TABLE, sw_interface_set_table) \ _(SW_INTERFACE_GET_TABLE, sw_interface_get_table) \ _(SW_INTERFACE_SET_UNNUMBERED, sw_interface_set_unnumbered) \ _(SW_INTERFACE_CLEAR_STATS, sw_interface_clear_stats) \ _(SW_INTERFACE_TAG_ADD_DEL, sw_interface_tag_add_del) \ _(SW_INTERFACE_SET_MAC_ADDRESS, sw_interface_set_mac_address) static void vl_api_sw_interface_set_flags_t_handler (vl_api_sw_interface_set_flags_t * mp) { vl_api_sw_interface_set_flags_reply_t *rmp; vnet_main_t *vnm = vnet_get_main (); int rv = 0; clib_error_t *error; u16 flags; VALIDATE_SW_IF_INDEX (mp); flags = mp->admin_up_down ? VNET_SW_INTERFACE_FLAG_ADMIN_UP : 0; error = vnet_sw_interface_set_flags (vnm, ntohl (mp->sw_if_index), flags); if (error) { rv = -1; clib_error_report (error); } BAD_SW_IF_INDEX_LABEL; REPLY_MACRO (VL_API_SW_INTERFACE_SET_FLAGS_REPLY); } static void vl_api_sw_interface_set_mtu_t_handler (vl_api_sw_interface_set_mtu_t * mp) { vl_api_sw_interface_set_mtu_reply_t *rmp; vnet_main_t *vnm = vnet_get_main (); u32 flags = ETHERNET_INTERFACE_FLAG_MTU; u32 sw_if_index = ntohl (mp->sw_if_index); u16 mtu = ntohs (mp->mtu); ethernet_main_t *em = &ethernet_main; int rv = 0; VALIDATE_SW_IF_INDEX (mp); vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index); if (si->type != VNET_SW_INTERFACE_TYPE_HARDWARE) { rv = VNET_API_ERROR_INVALID_VALUE; goto bad_sw_if_index; } vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, si->hw_if_index); ethernet_interface_t *eif = ethernet_get_interface (em, si->hw_if_index); if (!eif) { rv = VNET_API_ERROR_FEATURE_DISABLED; goto bad_sw_if_index; } if (mtu < hi->min_supported_packet_bytes) { rv = VNET_API_ERROR_INVALID_VALUE; goto bad_sw_if_index; } if (mtu > hi->max_supported_packet_bytes) { rv = VNET_API_ERROR_INVALID_VALUE; goto bad_sw_if_index; } if (hi->max_packet_bytes != mtu) { hi->max_packet_bytes = mtu; ethernet_set_flags (vnm, si->hw_if_index, flags); } BAD_SW_IF_INDEX_LABEL; REPLY_MACRO (VL_API_SW_INTERFACE_SET_MTU_REPLY); } static void send_sw_interface_details (vpe_api_main_t * am, unix_shared_memory_queue_t * q, vnet_sw_interface_t * swif, u8 * interface_name, u32 context) { vnet_hw_interface_t *hi = vnet_get_sup_hw_interface (am->vnet_main, swif->sw_if_index); vl_api_sw_interface_details_t *mp = vl_msg_api_alloc (sizeof (*mp)); memset (mp, 0, sizeof (*mp)); mp->_vl_msg_id = ntohs (VL_API_SW_INTERFACE_DETAILS); mp->sw_if_index = ntohl (swif->sw_if_index); mp->sup_sw_if_index = ntohl (swif->sup_sw_if_index); mp->admin_up_down = (swif->flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) ? 1 : 0; mp->link_up_down = (hi->flags & VNET_HW_INTERFACE_FLAG_LINK_UP) ? 1 : 0; mp->link_duplex = ((hi->flags & VNET_HW_INTERFACE_FLAG_DUPLEX_MASK) >> VNET_HW_INTERFACE_FLAG_DUPLEX_SHIFT); mp->link_speed = ((hi->flags & VNET_HW_INTERFACE_FLAG_SPEED_MASK) >> VNET_HW_INTERFACE_FLAG_SPEED_SHIFT); mp->link_mtu = ntohs (hi->max_packet_bytes); mp->context = context; strncpy ((char *) mp->interface_name, (char *) interface_name, ARRAY_LEN (mp->interface_name) - 1); /* Send the L2 address for ethernet physical intfcs */ if (swif->sup_sw_if_index == swif->sw_if_index && hi->hw_class_index == ethernet_hw_interface_class.index) { ethernet_main_t *em = ethernet_get_main (am->vlib_main); ethernet_interface_t *ei; ei = pool_elt_at_index (em->interfaces, hi->hw_instance); ASSERT (sizeof (mp->l2_address) >= sizeof (ei->address)); clib_memcpy (mp->l2_address, ei->address, sizeof (ei->address)); mp->l2_address_length = ntohl (sizeof (ei->address)); } else if (swif->sup_sw_if_index != swif->sw_if_index) { vnet_sub_interface_t *sub = &swif->sub; mp->sub_id = ntohl (sub->id); mp->sub_dot1ad = sub->eth.flags.dot1ad; mp->sub_number_of_tags = sub->eth.flags.one_tag + sub->eth.flags.two_tags * 2; mp->sub_outer_vlan_id = ntohs (sub->eth.outer_vlan_id); mp->sub_inner_vlan_id = ntohs (sub->eth.inner_vlan_id); mp->sub_exact_match = sub->eth.flags.exact_match; mp->sub_default = sub->eth.flags.default_sub; mp->sub_outer_vlan_id_any = sub->eth.flags.outer_vlan_id_any; mp->sub_inner_vlan_id_any = sub->eth.flags.inner_vlan_id_any; /* vlan tag rewrite data */ u32 vtr_op = L2_VTR_DISABLED; u32 vtr_push_dot1q = 0, vtr_tag1 = 0, vtr_tag2 = 0; if (l2vtr_get (am->vlib_main, am->vnet_main, swif->sw_if_index, &vtr_op, &vtr_push_dot1q, &vtr_tag1, &vtr_tag2) != 0) { // error - default to disabled mp->vtr_op = ntohl (L2_VTR_DISABLED); clib_warning ("cannot get vlan tag rewrite for sw_if_index %d", swif->sw_if_index); } else { mp->vtr_op = ntohl (vtr_op); mp->vtr_push_dot1q = ntohl (vtr_push_dot1q); mp->vtr_tag1 = ntohl (vtr_tag1); mp->vtr_tag2 = ntohl (vtr_tag2); } } /* pbb tag rewrite data */ ethernet_header_t eth_hdr; u32 vtr_op = L2_VTR_DISABLED; u16 outer_tag = 0; u16 b_vlanid = 0; u32 i_sid = 0; memset (&eth_hdr, 0, sizeof (eth_hdr)); if (!l2pbb_get (am->vlib_main, am->vnet_main, swif->sw_if_index, &vtr_op, &outer_tag, &eth_hdr, &b_vlanid, &i_sid)) { mp->sub_dot1ah = 1; clib_memcpy (mp->b_dmac, eth_hdr.dst_address, sizeof (eth_hdr.dst_address)); clib_memcpy (mp->b_smac, eth_hdr.src_address, sizeof (eth_hdr.src_address)); mp->b_vlanid = b_vlanid; mp->i_sid = i_sid; } u8 *tag = vnet_get_sw_interface_tag (vnet_get_main (), swif->sw_if_index); if (tag) strncpy ((char *) mp->tag, (char *) tag, ARRAY_LEN (mp->tag) - 1); vl_msg_api_send_shmem (q, (u8 *) & mp); } static void vl_api_sw_interface_dump_t_handler (vl_api_sw_interface_dump_t * mp) { vpe_api_main_t *am = &vpe_api_main; vnet_sw_interface_t *swif; vnet_interface_main_t *im = &am->vnet_main->interface_main; unix_shared_memory_queue_t *q = vl_api_client_index_to_input_queue (mp->client_index); if (q == 0) return; u8 *filter = 0, *name = 0; if (mp->name_filter_valid) { mp->name_filter[ARRAY_LEN (mp->name_filter) - 1] = 0; filter = format (0, "%s%c", mp->name_filter, 0); } char *strcasestr (char *, char *); /* lnx hdr file botch */ /* *INDENT-OFF* */ pool_foreach (swif, im->sw_interfaces, ({ if (!vnet_swif_is_api_visible (swif)) continue; vec_reset_length(name); name = format (name, "%U%c", format_vnet_sw_interface_name, am->vnet_main, swif, 0); if (filter && !strcasestr((char *) name, (char *) filter)) continue; send_sw_interface_details (am, q, swif, name, mp->context); })); /* *INDENT-ON* */ vec_free (name); vec_free (filter); } static void vl_api_sw_interface_add_del_address_t_handler (vl_api_sw_interface_add_del_address_t * mp) { vlib_main_t *vm = vlib_get_main (); vl_api_sw_interface_add_del_address_reply_t *rmp; int rv = 0; u32 is_del; VALIDATE_SW_IF_INDEX (mp); is_del = mp->is_add == 0; if (mp->del_all) ip_del_all_interface_addresses (vm, ntohl (mp->sw_if_index)); else if (mp->is_ipv6) ip6_add_del_interface_address (vm, ntohl (mp->sw_if_index), (void *) mp->address, mp->address_length, is_del); else ip4_add_del_interface_address (vm, ntohl (mp->sw_if_index), (void *) mp->address, mp->address_length, is_del); BAD_SW_IF_INDEX_LABEL; REPLY_MACRO (VL_API_SW_INTERFACE_ADD_DEL_ADDRESS_REPLY); } void stats_dslock_with_hint (int hint, int tag) __attribute__ ((weak)); void stats_dslock_with_hint (int hint, int tag) { } void stats_dsunlock (void) __attribute__ ((weak)); void stats_dsunlock (void) { } static void vl_api_sw_interface_set_table_t_handler (vl_api_sw_interface_set_table_t * mp) { vl_api_sw_interface_set_table_reply_t *rmp; u32 sw_if_index = ntohl (mp->sw_if_index); u32 table_id = ntohl (mp->vrf_id); int rv = 0; VALIDATE_SW_IF_INDEX (mp); stats_dslock_with_hint (1 /* release hint */ , 4 /* tag */ ); if (mp->is_ipv6) rv = ip_table_bind (FIB_PROTOCOL_IP6, sw_if_index, table_id, 1); else rv = ip_table_bind (FIB_PROTOCOL_IP4, sw_if_index, table_id, 1); stats_dsunlock (); BAD_SW_IF_INDEX_LABEL; REPLY_MACRO (VL_API_SW_INTERFACE_SET_TABLE_REPLY); } int ip_table_bind (fib_protocol_t fproto, u32 sw_if_index, u32 table_id, u8 is_api) { CLIB_UNUSED (ip_interface_address_t * ia); u32 fib_index, mfib_index; fib_source_t src; mfib_source_t msrc; if (is_api) { src = FIB_SOURCE_API; msrc = MFIB_SOURCE_API; } else { src = FIB_SOURCE_CLI; msrc = MFIB_SOURCE_CLI; } /* * This is temporary whilst I do the song and dance with the CSIT version */ if (0 != table_id) { fib_index = fib_table_find_or_create_and_lock (fproto, table_id, src); mfib_index = mfib_table_find_or_create_and_lock (fproto, table_id, msrc); } else { fib_index = 0; mfib_index = 0; } /* * This if table does not exist = error is what we want in the end. */ /* fib_index = fib_table_find (fproto, table_id); */ /* mfib_index = mfib_table_find (fproto, table_id); */ /* if (~0 == fib_index || ~0 == mfib_index) */ /* { */ /* return (VNET_API_ERROR_NO_SUCH_FIB); */ /* } */ if (FIB_PROTOCOL_IP6 == fproto) { /* * If the interface already has in IP address, then a change int * VRF is not allowed. The IP address applied must first be removed. * We do not do that automatically here, since VPP has no knowledge * of whether thoses subnets are valid in the destination VRF. */ /* *INDENT-OFF* */ foreach_ip_interface_address (&ip6_main.lookup_main, ia, sw_if_index, 1 /* honor unnumbered */ , ({ return (VNET_API_ERROR_ADDRESS_FOUND_FOR_INTERFACE); })); /* *INDENT-ON* */ vec_validate (ip6_main.fib_index_by_sw_if_index, sw_if_index); vec_validate (ip6_main.mfib_index_by_sw_if_index, sw_if_index); /* * tell those that are interested that the binding is changing. */ ip6_table_bind_callback_t *cb; vec_foreach (cb, ip6_main.table_bind_callbacks) cb->function (&ip6_main, cb->function_opaque, sw_if_index, fib_index, ip6_main.fib_index_by_sw_if_index[sw_if_index]); if (0 == table_id) { /* reset back to default */ if (0 != ip6_main.fib_index_by_sw_if_index[sw_if_index]) fib_table_unlock (ip6_main.fib_index_by_sw_if_index[sw_if_index], FIB_PROTOCOL_IP6, src); if (0 != ip6_main.mfib_index_by_sw_if_index[sw_if_index]) mfib_table_unlock (ip6_main.mfib_index_by_sw_if_index [sw_if_index], FIB_PROTOCOL_IP6, msrc); } else { /* we need to lock the table now it's inuse */ fib_table_lock (fib_index, FIB_PROTOCOL_IP6, src); mfib_table_lock (mfib_index, FIB_PROTOCOL_IP6, msrc); } ip6_main.fib_index_by_sw_if_index[sw_if_index] = fib_index; ip6_main.mfib_index_by_sw_if_index[sw_if_index] = mfib_index; } else { /* * If the interface already has in IP address, then a change int * VRF is not allowed. The IP address applied must first be removed. * We do not do that automatically here, since VPP has no knowledge * of whether thoses subnets are valid in the destination VRF. */ /* *INDENT-OFF* */ foreach_ip_interface_address (&ip4_main.lookup_main, ia, sw_if_index, 1 /* honor unnumbered */ , ({ return (VNET_API_ERROR_ADDRESS_FOUND_FOR_INTERFACE); })); /* *INDENT-ON* */ vec_validate (ip4_main.fib_index_by_sw_if_index, sw_if_index); vec_validate (ip4_main.mfib_index_by_sw_if_index, sw_if_index); /* * tell those that are interested that the binding is changing. */ ip4_table_bind_callback_t *cb; vec_foreach (cb, ip4_main.table_bind_callbacks) cb->function (&ip4_main, cb->function_opaque, sw_if_index, fib_index, ip4_main.fib_index_by_sw_if_index[sw_if_index]); if (0 == table_id) { /* reset back to default */ if (0 != ip4_main.fib_index_by_sw_if_index[sw_if_index]) fib_table_unlock (ip4_main.fib_index_by_sw_if_index[sw_if_index], FIB_PROTOCOL_IP4, src); if (0 != ip4_main.mfib_index_by_sw_if_index[sw_if_index]) mfib_table_unlock (ip4_main.mfib_index_by_sw_if_index [sw_if_index], FIB_PROTOCOL_IP4, msrc); } else { /* we need to lock the table now it's inuse */ fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4, table_id, src); mfib_index = mfib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4, table_id, msrc); } ip4_main.fib_index_by_sw_if_index[sw_if_index] = fib_index; ip4_main.mfib_index_by_sw_if_index[sw_if_index] = mfib_index; } /* * Temporary. undo the locks from the find and create at the staart */ if (0 != table_id) { fib_table_unlock (fib_index, fproto, src); mfib_table_unlock (mfib_index, fproto, msrc); } return (0); } static void send_sw_interface_get_table_reply (unix_shared_memory_queue_t * q, u32 context, int retval, u32 vrf_id) { vl_api_sw_interface_get_table_reply_t *mp; mp = vl_msg_api_alloc (sizeof (*mp)); memset (mp, 0, sizeof (*mp)); mp->_vl_msg_id = ntohs (VL_API_SW_INTERFACE_GET_TABLE_REPLY); mp->context = context; mp->retval = htonl (retval); mp->vrf_id = htonl (vrf_id); vl_msg_api_send_shmem (q, (u8 *) & mp); } static void vl_api_sw_interface_get_table_t_handler (vl_api_sw_interface_get_table_t * mp) { unix_shared_memory_queue_t *q; fib_table_t *fib_table = 0; u32 sw_if_index = ~0; u32 fib_index = ~0; u32 table_id = ~0; fib_protocol_t fib_proto = FIB_PROTOCOL_IP4; int rv = 0; q = vl_api_client_index_to_input_queue (mp->client_index); if (q == 0) return; VALIDATE_SW_IF_INDEX (mp); sw_if_index = ntohl (mp->sw_if_index); if (mp->is_ipv6) fib_proto = FIB_PROTOCOL_IP6; fib_index = fib_table_get_index_for_sw_if_index (fib_proto, sw_if_index); if (fib_index != ~0) { fib_table = fib_table_get (fib_index, fib_proto); table_id = fib_table->ft_table_id; } BAD_SW_IF_INDEX_LABEL; send_sw_interface_get_table_reply (q, mp->context, rv, table_id); } static void vl_api_sw_interface_set_unnumbered_t_handler (vl_api_sw_interface_set_unnumbered_t * mp) { vl_api_sw_interface_set_unnumbered_reply_t *rmp; int rv = 0; vnet_main_t *vnm = vnet_get_main (); u32 sw_if_index = ntohl (mp->sw_if_index); u32 unnumbered_sw_if_index = ntohl (mp->unnumbered_sw_if_index); u32 was_unnum; /* * The API message field names are backwards from * the underlying data structure names. * It's not worth changing them now. */ if (!vnet_sw_interface_is_api_valid (vnm, unnumbered_sw_if_index)) { rv = VNET_API_ERROR_INVALID_SW_IF_INDEX; goto done; } /* Only check the "use loop0" field when setting the binding */ if (mp->is_add && !vnet_sw_interface_is_api_valid (vnm, sw_if_index)) { rv = VNET_API_ERROR_INVALID_SW_IF_INDEX_2; goto done; } vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, unnumbered_sw_if_index); was_unnum = (si->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED); if (mp->is_add) { si->flags |= VNET_SW_INTERFACE_FLAG_UNNUMBERED; si->unnumbered_sw_if_index = sw_if_index; ip4_main.lookup_main.if_address_pool_index_by_sw_if_index [unnumbered_sw_if_index] = ip4_main. lookup_main.if_address_pool_index_by_sw_if_index[sw_if_index]; ip6_main. lookup_main.if_address_pool_index_by_sw_if_index [unnumbered_sw_if_index] = ip6_main. lookup_main.if_address_pool_index_by_sw_if_index[sw_if_index]; } else { si->flags &= ~(VNET_SW_INTERFACE_FLAG_UNNUMBERED); si->unnumbered_sw_if_index = (u32) ~ 0; ip4_main.lookup_main.if_address_pool_index_by_sw_if_index [unnumbered_sw_if_index] = ~0; ip6_main.lookup_main.if_address_pool_index_by_sw_if_index [unnumbered_sw_if_index] = ~0; } if (was_unnum != (si->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED)) { ip4_sw_interface_enable_disable (unnumbered_sw_if_index, mp->is_add); ip6_sw_interface_enable_disable (unnumbered_sw_if_index, mp->is_add); } done: REPLY_MACRO (VL_API_SW_INTERFACE_SET_UNNUMBERED_REPLY); } static void vl_api_sw_interface_clear_stats_t_handler (vl_api_sw_interface_clear_stats_t * mp) { vl_api_sw_interface_clear_stats_reply_t *rmp; vnet_main_t *vnm = vnet_get_main (); vnet_interface_main_t *im = &vnm->interface_main; vlib_simple_counter_main_t *sm; vlib_combined_counter_main_t *cm; static vnet_main_t **my_vnet_mains; int i, j, n_counters; int rv = 0; if (mp->sw_if_index != ~0) VALIDATE_SW_IF_INDEX (mp); vec_reset_length (my_vnet_mains); for (i = 0; i < vec_len (vnet_mains); i++) { if (vnet_mains[i]) vec_add1 (my_vnet_mains, vnet_mains[i]); } if (vec_len (vnet_mains) == 0) vec_add1 (my_vnet_mains, vnm); n_counters = vec_len (im->combined_sw_if_counters); for (j = 0; j < n_counters; j++) { for (i = 0; i < vec_len (my_vnet_mains); i++) { im = &my_vnet_mains[i]->interface_main; cm = im->combined_sw_if_counters + j; if (mp->sw_if_index == (u32) ~ 0) vlib_clear_combined_counters (cm); else vlib_zero_combined_counter (cm, ntohl (mp->sw_if_index)); } } n_counters = vec_len (im->sw_if_counters); for (j = 0; j < n_counters; j++) { for (i = 0; i < vec_len (my_vnet_mains); i++) { im = &my_vnet_mains[i]->interface_main; sm = im->sw_if_counters + j; if (mp->sw_if_index == (u32) ~ 0) vlib_clear_simple_counters (sm); else vlib_zero_simple_counter (sm, ntohl (mp->sw_if_index)); } } BAD_SW_IF_INDEX_LABEL; REPLY_MACRO (VL_API_SW_INTERFACE_CLEAR_STATS_REPLY); } #define API_LINK_STATE_EVENT 1 #define API_ADMIN_UP_DOWN_EVENT 2 static int event_data_cmp (void *a1, void *a2) { uword *e1 = a1; uword *e2 = a2; return (word) e1[0] - (word) e2[0]; } static void send_sw_interface_event (vpe_api_main_t * am, vpe_client_registration_t * reg, unix_shared_memory_queue_t * q, vnet_sw_interface_t * swif) { vl_api_sw_interface_event_t *mp; vnet_main_t *vnm = am->vnet_main; vnet_hw_interface_t *hi = vnet_get_sup_hw_interface (vnm, swif->sw_if_index); mp = vl_msg_api_alloc (sizeof (*mp)); memset (mp, 0, sizeof (*mp)); mp->_vl_msg_id = ntohs (VL_API_SW_INTERFACE_EVENT); mp->sw_if_index = ntohl (swif->sw_if_index); mp->client_index = reg->client_index; mp->pid = reg->client_pid; mp->admin_up_down = (swif->flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) ? 1 : 0; mp->link_up_down = (hi->flags & VNET_HW_INTERFACE_FLAG_LINK_UP) ? 1 : 0; vl_msg_api_send_shmem (q, (u8 *) & mp); } static uword link_state_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f) { vpe_api_main_t *vam = &vpe_api_main; vnet_main_t *vnm = vam->vnet_main; vnet_sw_interface_t *swif; uword *event_data = 0; vpe_client_registration_t *reg; int i; u32 prev_sw_if_index; unix_shared_memory_queue_t *q; vam->link_state_process_up = 1; while (1) { vlib_process_wait_for_event (vm); /* Unified list of changed link or admin state sw_if_indices */ vlib_process_get_events_with_type (vm, &event_data, API_LINK_STATE_EVENT); vlib_process_get_events_with_type (vm, &event_data, API_ADMIN_UP_DOWN_EVENT); /* Sort, so we can eliminate duplicates */ vec_sort_with_function (event_data, event_data_cmp); prev_sw_if_index = ~0; for (i = 0; i < vec_len (event_data); i++) { /* Only one message per swif */ if (prev_sw_if_index == event_data[i]) continue; prev_sw_if_index = event_data[i]; /* *INDENT-OFF* */ pool_foreach(reg, vam->interface_events_registrations, ({ q = vl_api_client_index_to_input_queue (reg->client_index); if (q) { /* sw_interface may be deleted already */ if (!pool_is_free_index (vnm->interface_main.sw_interfaces, event_data[i])) { swif = vnet_get_sw_interface (vnm, event_data[i]); send_sw_interface_event (vam, reg, q, swif); } } })); /* *INDENT-ON* */ } vec_reset_length (event_data); } return 0; } static clib_error_t *link_up_down_function (vnet_main_t * vm, u32 hw_if_index, u32 flags); static clib_error_t *admin_up_down_function (vnet_main_t * vm, u32 hw_if_index, u32 flags); /* *INDENT-OFF* */ VLIB_REGISTER_NODE (link_state_process_node,static) = { .function = link_state_process, .type = VLIB_NODE_TYPE_PROCESS, .name = "vpe-link-state-process", }; /* *INDENT-ON* */ VNET_SW_INTERFACE_ADMIN_UP_DOWN_FUNCTION (admin_up_down_function); VNET_HW_INTERFACE_LINK_UP_DOWN_FUNCTION (link_up_down_function); static clib_error_t * link_up_down_function (vnet_main_t * vm, u32 hw_if_index, u32 flags) { vpe_api_main_t *vam = &vpe_api_main; vnet_hw_interface_t *hi = vnet_get_hw_interface (vm, hw_if_index); if (vam->link_state_process_up) vlib_process_signal_event (vam->vlib_main, link_state_process_node.index, API_LINK_STATE_EVENT, hi->sw_if_index); return 0; } static clib_error_t * admin_up_down_function (vnet_main_t * vm, u32 sw_if_index, u32 flags) { vpe_api_main_t *vam = &vpe_api_main; /* * Note: it's perfectly fair to set a subif admin up / admin down. * Note the subtle distinction between this routine and the previous * routine. */ if (vam->link_state_process_up) vlib_process_signal_event (vam->vlib_main, link_state_process_node.index, API_ADMIN_UP_DOWN_EVENT, sw_if_index); return 0; } static void vl_api_sw_interface_tag_add_del_t_handler (vl_api_sw_interface_tag_add_del_t * mp) { vnet_main_t *vnm = vnet_get_main (); vl_api_sw_interface_tag_add_del_reply_t *rmp; int rv = 0; u8 *tag; u32 sw_if_index = ntohl (mp->sw_if_index); VALIDATE_SW_IF_INDEX (mp); if (mp->is_add) { if (mp->tag[0] == 0) { rv = VNET_API_ERROR_INVALID_VALUE; goto out; } mp->tag[ARRAY_LEN (mp->tag) - 1] = 0; tag = format (0, "%s%c", mp->tag, 0); vnet_set_sw_interface_tag (vnm, tag, sw_if_index); } else vnet_clear_sw_interface_tag (vnm, sw_if_index); BAD_SW_IF_INDEX_LABEL; out: REPLY_MACRO (VL_API_SW_INTERFACE_TAG_ADD_DEL_REPLY); } static void vl_api_sw_interface_set_mac_address_t_handler (vl_api_sw_interface_set_mac_address_t * mp) { vl_api_sw_interface_set_mac_address_reply_t *rmp; vnet_main_t *vnm = vnet_get_main (); u32 sw_if_index = ntohl (mp->sw_if_index); u64 mac; clib_error_t *error; int rv = 0; VALIDATE_SW_IF_INDEX (mp); mac = ((u64) mp->mac_address[0] << (8 * 0) | (u64) mp->mac_address[1] << (8 * 1) | (u64) mp->mac_address[2] << (8 * 2) | (u64) mp->mac_address[3] << (8 * 3) | (u64) mp->mac_address[4] << (8 * 4) | (u64) mp->mac_address[5] << (8 * 5)); error = vnet_hw_interface_change_mac_address (vnm, sw_if_index, mac); if (error) { rv = VNET_API_ERROR_UNIMPLEMENTED; clib_error_report (error); goto out; } BAD_SW_IF_INDEX_LABEL; out: REPLY_MACRO (VL_API_SW_INTERFACE_SET_MAC_ADDRESS_REPLY); } /* * vpe_api_hookup * Add vpe's API message handlers to the table. * vlib has alread mapped shared memory and * added the client registration handlers. * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process() */ #define vl_msg_name_crc_list #include <vnet/interface.api.h> #undef vl_msg_name_crc_list static void setup_message_id_table (api_main_t * am) { #define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id); foreach_vl_msg_name_crc_interface; #undef _ } pub_sub_handler (interface_events, INTERFACE_EVENTS); static clib_error_t * interface_api_hookup (vlib_main_t * vm) { api_main_t *am = &api_main; #define _(N,n) \ vl_msg_api_set_handlers(VL_API_##N, #n, \ vl_api_##n##_t_handler, \ vl_noop_handler, \ vl_api_##n##_t_endian, \ vl_api_##n##_t_print, \ sizeof(vl_api_##n##_t), 1); foreach_vpe_api_msg; #undef _ /* * Set up the (msg_name, crc, message-id) table */ setup_message_id_table (am); return 0; } VLIB_API_INIT_FUNCTION (interface_api_hookup); /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */


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