diff options
Diffstat (limited to 'src/vnet/dhcp/dhcp_proxy.c')
| -rw-r--r-- | src/vnet/dhcp/dhcp_proxy.c | 375 |
1 files changed, 0 insertions, 375 deletions
diff --git a/src/vnet/dhcp/dhcp_proxy.c b/src/vnet/dhcp/dhcp_proxy.c deleted file mode 100644 index 9a69041bc1d..00000000000 --- a/src/vnet/dhcp/dhcp_proxy.c +++ /dev/null @@ -1,375 +0,0 @@ -/* - * proxy_node.c: common dhcp v4 and v6 proxy node processing - * - * Copyright (c) 2013 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/dhcp/dhcp_proxy.h> -#include <vnet/fib/fib_table.h> -#include <vnet/mfib/mfib_table.h> - -/** - * @brief Shard 4/6 instance of DHCP main - */ -dhcp_proxy_main_t dhcp_proxy_main; - -static void -dhcp_proxy_rx_table_lock (fib_protocol_t proto, u32 fib_index) -{ - if (FIB_PROTOCOL_IP4 == proto) - fib_table_lock (fib_index, proto, FIB_SOURCE_DHCP); - else - mfib_table_lock (fib_index, proto, MFIB_SOURCE_DHCP); -} - -static void -dhcp_proxy_rx_table_unlock (fib_protocol_t proto, u32 fib_index) -{ - if (FIB_PROTOCOL_IP4 == proto) - fib_table_unlock (fib_index, proto, FIB_SOURCE_DHCP); - else - mfib_table_unlock (fib_index, proto, MFIB_SOURCE_DHCP); -} - -u32 -dhcp_proxy_rx_table_get_table_id (fib_protocol_t proto, u32 fib_index) -{ - if (FIB_PROTOCOL_IP4 == proto) - { - fib_table_t *fib; - - fib = fib_table_get (fib_index, proto); - - return (fib->ft_table_id); - } - else - { - mfib_table_t *mfib; - - mfib = mfib_table_get (fib_index, proto); - - return (mfib->mft_table_id); - } -} - -void -dhcp_proxy_walk (fib_protocol_t proto, dhcp_proxy_walk_fn_t fn, void *ctx) -{ - dhcp_proxy_main_t *dpm = &dhcp_proxy_main; - dhcp_proxy_t *server; - u32 server_index, i; - - vec_foreach_index (i, dpm->dhcp_server_index_by_rx_fib_index[proto]) - { - server_index = dpm->dhcp_server_index_by_rx_fib_index[proto][i]; - if (~0 == server_index) - continue; - - server = pool_elt_at_index (dpm->dhcp_servers[proto], server_index); - - if (!fn (server, ctx)) - break; - } -} - -void -dhcp_vss_walk (fib_protocol_t proto, dhcp_vss_walk_fn_t fn, void *ctx) -{ - dhcp_proxy_main_t *dpm = &dhcp_proxy_main; - mfib_table_t *mfib; - dhcp_vss_t *vss; - u32 vss_index, i; - fib_table_t *fib; - - vec_foreach_index (i, dpm->vss_index_by_rx_fib_index[proto]) - { - vss_index = dpm->vss_index_by_rx_fib_index[proto][i]; - if (~0 == vss_index) - continue; - - vss = pool_elt_at_index (dpm->vss[proto], vss_index); - - if (FIB_PROTOCOL_IP4 == proto) - { - fib = fib_table_get (i, proto); - - if (!fn (vss, fib->ft_table_id, ctx)) - break; - } - else - { - mfib = mfib_table_get (i, proto); - - if (!fn (vss, mfib->mft_table_id, ctx)) - break; - } - } -} - -static u32 -dhcp_proxy_server_find (dhcp_proxy_t * proxy, - fib_protocol_t proto, - ip46_address_t * addr, u32 server_table_id) -{ - dhcp_server_t *server; - u32 ii, fib_index; - - vec_foreach_index (ii, proxy->dhcp_servers) - { - server = &proxy->dhcp_servers[ii]; - fib_index = fib_table_find (proto, server_table_id); - - if (ip46_address_is_equal (&server->dhcp_server, - addr) && - (server->server_fib_index == fib_index)) - { - return (ii); - } - } - return (~0); -} - -int -dhcp_proxy_server_del (fib_protocol_t proto, - u32 rx_fib_index, - ip46_address_t * addr, u32 server_table_id) -{ - dhcp_proxy_main_t *dpm = &dhcp_proxy_main; - dhcp_proxy_t *proxy = 0; - - proxy = dhcp_get_proxy (dpm, rx_fib_index, proto); - - if (NULL != proxy) - { - dhcp_server_t *server; - u32 index; - - index = dhcp_proxy_server_find (proxy, proto, addr, server_table_id); - - if (~0 != index) - { - server = &proxy->dhcp_servers[index]; - fib_table_unlock (server->server_fib_index, proto, FIB_SOURCE_DHCP); - - vec_del1 (proxy->dhcp_servers, index); - - if (0 == vec_len (proxy->dhcp_servers)) - { - /* no servers left, delete the proxy config */ - dpm->dhcp_server_index_by_rx_fib_index[proto][rx_fib_index] = - ~0; - vec_free (proxy->dhcp_servers); - pool_put (dpm->dhcp_servers[proto], proxy); - return (1); - } - } - } - - /* the proxy still exists */ - return (0); -} - -int -dhcp_proxy_server_add (fib_protocol_t proto, - ip46_address_t * addr, - ip46_address_t * src_address, - u32 rx_fib_index, u32 server_table_id) -{ - dhcp_proxy_main_t *dpm = &dhcp_proxy_main; - dhcp_proxy_t *proxy = 0; - int new = 0; - - proxy = dhcp_get_proxy (dpm, rx_fib_index, proto); - - if (NULL == proxy) - { - vec_validate_init_empty (dpm->dhcp_server_index_by_rx_fib_index[proto], - rx_fib_index, ~0); - - pool_get (dpm->dhcp_servers[proto], proxy); - clib_memset (proxy, 0, sizeof (*proxy)); - new = 1; - - dpm->dhcp_server_index_by_rx_fib_index[proto][rx_fib_index] = - proxy - dpm->dhcp_servers[proto]; - - proxy->dhcp_src_address = *src_address; - proxy->rx_fib_index = rx_fib_index; - } - else - { - if (~0 != dhcp_proxy_server_find (proxy, proto, addr, server_table_id)) - { - return (new); - } - } - - dhcp_server_t server = { - .dhcp_server = *addr, - .server_fib_index = fib_table_find_or_create_and_lock (proto, - server_table_id, - FIB_SOURCE_DHCP), - }; - - vec_add1 (proxy->dhcp_servers, server); - - return (new); -} - -typedef struct dhcp4_proxy_dump_walk_ctx_t_ -{ - fib_protocol_t proto; - void *opaque; - u32 context; -} dhcp_proxy_dump_walk_cxt_t; - -static int -dhcp_proxy_dump_walk (dhcp_proxy_t * proxy, void *arg) -{ - dhcp_proxy_dump_walk_cxt_t *ctx = arg; - - dhcp_send_details (ctx->proto, ctx->opaque, ctx->context, proxy); - - return (1); -} - -void -dhcp_proxy_dump (fib_protocol_t proto, void *opaque, u32 context) -{ - dhcp_proxy_dump_walk_cxt_t ctx = { - .proto = proto, - .opaque = opaque, - .context = context, - }; - dhcp_proxy_walk (proto, dhcp_proxy_dump_walk, &ctx); -} - -int -dhcp_vss_show_walk (dhcp_vss_t * vss, u32 rx_table_id, void *ctx) -{ - vlib_main_t *vm = ctx; - - if (vss->vss_type == VSS_TYPE_VPN_ID) - { - u32 oui = ((u32) vss->vpn_id[0] << 16) + ((u32) vss->vpn_id[1] << 8) - + ((u32) vss->vpn_id[2]); - u32 fib_id = ((u32) vss->vpn_id[3] << 24) + ((u32) vss->vpn_id[4] << 16) - + ((u32) vss->vpn_id[5] << 8) + ((u32) vss->vpn_id[6]); - vlib_cli_output (vm, " fib_table: %d oui: %d vpn_index: %d", - rx_table_id, oui, fib_id); - } - else if (vss->vss_type == VSS_TYPE_ASCII) - vlib_cli_output (vm, " fib_table: %d vpn_id: %s", - rx_table_id, vss->vpn_ascii_id); - else - vlib_cli_output (vm, " fib_table: %d default global vpn", rx_table_id); - - return (1); -} - -void -update_vss (dhcp_vss_t * v, - u8 vss_type, u8 * vpn_ascii_id, u32 oui, u32 vpn_index) -{ - v->vss_type = vss_type; - if (v->vpn_ascii_id) - { - if (v->vpn_ascii_id == (u8 *) ~ 0) - v->vpn_ascii_id = 0; - else - vec_free (v->vpn_ascii_id); - } - - if (vss_type == VSS_TYPE_ASCII) - v->vpn_ascii_id = vpn_ascii_id; - else if (vss_type == VSS_TYPE_VPN_ID) - { - v->vpn_id[0] = (oui >> 16) & 0xff; - v->vpn_id[1] = (oui >> 8) & 0xff; - v->vpn_id[2] = (oui >> 0) & 0xff; - v->vpn_id[3] = (vpn_index >> 24) & 0xff; - v->vpn_id[4] = (vpn_index >> 16) & 0xff; - v->vpn_id[5] = (vpn_index >> 8) & 0xff; - v->vpn_id[6] = (vpn_index >> 0) & 0xff; - } -} - -int -dhcp_proxy_set_vss (fib_protocol_t proto, - u32 tbl_id, - u8 vss_type, - u8 * vpn_ascii_id, u32 oui, u32 vpn_index, u8 is_del) -{ - dhcp_proxy_main_t *dm = &dhcp_proxy_main; - dhcp_vss_t *v = NULL; - u32 rx_fib_index; - int rc = 0; - - if (proto == FIB_PROTOCOL_IP4) - rx_fib_index = fib_table_find_or_create_and_lock (proto, tbl_id, - FIB_SOURCE_DHCP); - else - rx_fib_index = mfib_table_find_or_create_and_lock (proto, tbl_id, - MFIB_SOURCE_DHCP); - v = dhcp_get_vss_info (dm, rx_fib_index, proto); - - if (NULL != v) - { - if (is_del) - { - /* release the lock held on the table when the VSS - * info was created */ - dhcp_proxy_rx_table_unlock (proto, rx_fib_index); - - vec_free (v->vpn_ascii_id); - pool_put (dm->vss[proto], v); - dm->vss_index_by_rx_fib_index[proto][rx_fib_index] = ~0; - } - else - { - update_vss (v, vss_type, vpn_ascii_id, oui, vpn_index); - } - } - else - { - if (is_del) - rc = VNET_API_ERROR_NO_SUCH_ENTRY; - else - { - /* create a new entry */ - vec_validate_init_empty (dm->vss_index_by_rx_fib_index[proto], - rx_fib_index, ~0); - - /* hold a lock on the table whilst the VSS info exist */ - pool_get (dm->vss[proto], v); - update_vss (v, vss_type, vpn_ascii_id, oui, vpn_index); - dm->vss_index_by_rx_fib_index[proto][rx_fib_index] = - v - dm->vss[proto]; - dhcp_proxy_rx_table_lock (proto, rx_fib_index); - } - } - - /* Release the lock taken during the create_or_lock at the start */ - dhcp_proxy_rx_table_unlock (proto, rx_fib_index); - - return (rc); -} - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ |