diff options
Diffstat (limited to 'src/vnet/dhcp')
| -rw-r--r-- | src/vnet/dhcp/dhcp.api | 166 | ||||
| -rw-r--r-- | src/vnet/dhcp/dhcp_api.c | 253 |
2 files changed, 419 insertions, 0 deletions
diff --git a/src/vnet/dhcp/dhcp.api b/src/vnet/dhcp/dhcp.api new file mode 100644 index 00000000..c228cd04 --- /dev/null +++ b/src/vnet/dhcp/dhcp.api @@ -0,0 +1,166 @@ +/* + * Copyright (c) 2015-2016 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. + */ + +/** \brief DHCP Proxy config add / del request + @param client_index - opaque cookie to identify the sender + @param context - sender context, to match reply w/ request + @param vrf_id - vrf id + @param if_ipv6 - ipv6 if non-zero, else ipv4 + @param is_add - add the config if non-zero, else delete + @param insert_circuit_id - option82 suboption 1 fib number + @param dhcp_server[] - server address + @param dhcp_src_address[] - <fix this, need details> +*/ +define dhcp_proxy_config +{ + u32 client_index; + u32 context; + u32 vrf_id; + u8 is_ipv6; + u8 is_add; + u8 insert_circuit_id; + u8 dhcp_server[16]; + u8 dhcp_src_address[16]; +}; + +/** \brief DHCP Proxy config response + @param context - sender context, to match reply w/ request + @param retval - return code for the request +*/ +define dhcp_proxy_config_reply +{ + u32 context; + i32 retval; +}; + +/** \brief DHCP Proxy config 2 add / del request + @param client_index - opaque cookie to identify the sender + @param context - sender context, to match reply w/ request + @param rx_vrf_id - receive vrf id + @param server_vrf_id - server vrf id + @param if_ipv6 - ipv6 if non-zero, else ipv4 + @param is_add - add the config if non-zero, else delete + @param insert_circuit_id - option82 suboption 1 fib number + @param dhcp_server[] - server address + @param dhcp_src_address[] - <fix this, need details> +*/ +define dhcp_proxy_config_2 +{ + u32 client_index; + u32 context; + u32 rx_vrf_id; + u32 server_vrf_id; + u8 is_ipv6; + u8 is_add; + u8 insert_circuit_id; + u8 dhcp_server[16]; + u8 dhcp_src_address[16]; +}; + +/** \brief DHCP Proxy config 2 add / del response + @param context - sender context, to match reply w/ request + @param retval - return code for request +*/ +define dhcp_proxy_config_2_reply +{ + u32 context; + i32 retval; +}; + +/** \brief DHCP Proxy set / unset vss request + @param client_index - opaque cookie to identify the sender + @param context - sender context, to match reply w/ request + @param tbl_id - table id + @param oui - first part of vpn id + @param fib_id - second part of vpn id + @param is_ipv6 - ip6 if non-zero, else ip4 + @param is_add - set vss if non-zero, else delete +*/ +define dhcp_proxy_set_vss +{ + u32 client_index; + u32 context; + u32 tbl_id; + u32 oui; + u32 fib_id; + u8 is_ipv6; + u8 is_add; +}; + +/** \brief DHCP proxy set / unset vss response + @param context - sender context, to match reply w/ request + @param retval - return code for the request +*/ +define dhcp_proxy_set_vss_reply +{ + u32 context; + i32 retval; +}; + +/** \brief DHCP Client config add / del request + @param client_index - opaque cookie to identify the sender + @param context - sender context, to match reply w/ request + @param sw_if_index - index of the interface for DHCP client + @param hostname - hostname + @param is_add - add the config if non-zero, else delete + @param want_dhcp_event - DHCP event sent to the sender + via dhcp_compl_event API message if non-zero + @param pid - sender's pid +*/ +define dhcp_client_config +{ + u32 client_index; + u32 context; + u32 sw_if_index; + u8 hostname[64]; + u8 is_add; + u8 want_dhcp_event; + u32 pid; +}; + +/** \brief DHCP Client config response + @param context - sender context, to match reply w/ request + @param retval - return code for the request +*/ +define dhcp_client_config_reply +{ + u32 context; + i32 retval; +}; + +/** \brief Tell client about a DHCP completion event + @param client_index - opaque cookie to identify the sender + @param pid - client pid registered to receive notification + @param is_ipv6 - if non-zero the address is ipv6, else ipv4 + @param host_address - Host IP address + @param router_address - Router IP address + @param host_mac - Host MAC address +*/ +define dhcp_compl_event +{ + u32 client_index; + u32 pid; + u8 hostname[64]; + u8 is_ipv6; + u8 host_address[16]; + u8 router_address[16]; + u8 host_mac[6]; +}; + +/* + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */
\ No newline at end of file diff --git a/src/vnet/dhcp/dhcp_api.c b/src/vnet/dhcp/dhcp_api.c new file mode 100644 index 00000000..88b32b24 --- /dev/null +++ b/src/vnet/dhcp/dhcp_api.c @@ -0,0 +1,253 @@ +/* + *------------------------------------------------------------------ + * dhcp_api.c - dhcp 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/dhcp/proxy.h> +#include <vnet/dhcp/client.h> +#include <vnet/dhcpv6/proxy.h> + +#include <vnet/vnet_msg_enum.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> + +#define foreach_vpe_api_msg \ +_(DHCP_PROXY_CONFIG,dhcp_proxy_config) \ +_(DHCP_PROXY_CONFIG_2,dhcp_proxy_config_2) \ +_(DHCP_PROXY_SET_VSS,dhcp_proxy_set_vss) \ +_(DHCP_CLIENT_CONFIG, dhcp_client_config) + +static void +dhcpv4_proxy_config (vl_api_dhcp_proxy_config_t * mp) +{ + vl_api_dhcp_proxy_config_reply_t *rmp; + int rv; + + rv = dhcp_proxy_set_server ((ip4_address_t *) (&mp->dhcp_server), + (ip4_address_t *) (&mp->dhcp_src_address), + (u32) ntohl (mp->vrf_id), + (int) mp->insert_circuit_id, + (int) (mp->is_add == 0)); + + REPLY_MACRO (VL_API_DHCP_PROXY_CONFIG_REPLY); +} + + +static void +dhcpv6_proxy_config (vl_api_dhcp_proxy_config_t * mp) +{ + vl_api_dhcp_proxy_config_reply_t *rmp; + int rv = -1; + + rv = dhcpv6_proxy_set_server ((ip6_address_t *) (&mp->dhcp_server), + (ip6_address_t *) (&mp->dhcp_src_address), + (u32) ntohl (mp->vrf_id), + (int) mp->insert_circuit_id, + (int) (mp->is_add == 0)); + + REPLY_MACRO (VL_API_DHCP_PROXY_CONFIG_REPLY); +} + +static void +dhcpv4_proxy_config_2 (vl_api_dhcp_proxy_config_2_t * mp) +{ + vl_api_dhcp_proxy_config_reply_t *rmp; + int rv; + + rv = dhcp_proxy_set_server_2 ((ip4_address_t *) (&mp->dhcp_server), + (ip4_address_t *) (&mp->dhcp_src_address), + (u32) ntohl (mp->rx_vrf_id), + (u32) ntohl (mp->server_vrf_id), + (int) mp->insert_circuit_id, + (int) (mp->is_add == 0)); + + REPLY_MACRO (VL_API_DHCP_PROXY_CONFIG_2_REPLY); +} + + +static void +dhcpv6_proxy_config_2 (vl_api_dhcp_proxy_config_2_t * mp) +{ + vl_api_dhcp_proxy_config_reply_t *rmp; + int rv = -1; + + rv = dhcpv6_proxy_set_server_2 ((ip6_address_t *) (&mp->dhcp_server), + (ip6_address_t *) (&mp->dhcp_src_address), + (u32) ntohl (mp->rx_vrf_id), + (u32) ntohl (mp->server_vrf_id), + (int) mp->insert_circuit_id, + (int) (mp->is_add == 0)); + + REPLY_MACRO (VL_API_DHCP_PROXY_CONFIG_2_REPLY); +} + + +static void +vl_api_dhcp_proxy_set_vss_t_handler (vl_api_dhcp_proxy_set_vss_t * mp) +{ + vl_api_dhcp_proxy_set_vss_reply_t *rmp; + int rv; + if (!mp->is_ipv6) + rv = dhcp_proxy_set_option82_vss (ntohl (mp->tbl_id), + ntohl (mp->oui), + ntohl (mp->fib_id), + (int) mp->is_add == 0); + else + rv = dhcpv6_proxy_set_vss (ntohl (mp->tbl_id), + ntohl (mp->oui), + ntohl (mp->fib_id), (int) mp->is_add == 0); + + REPLY_MACRO (VL_API_DHCP_PROXY_SET_VSS_REPLY); +} + + +static void vl_api_dhcp_proxy_config_t_handler + (vl_api_dhcp_proxy_config_t * mp) +{ + if (mp->is_ipv6 == 0) + dhcpv4_proxy_config (mp); + else + dhcpv6_proxy_config (mp); +} + +void +dhcp_compl_event_callback (u32 client_index, u32 pid, u8 * hostname, + u8 is_ipv6, u8 * host_address, u8 * router_address, + u8 * host_mac) +{ + unix_shared_memory_queue_t *q; + vl_api_dhcp_compl_event_t *mp; + + q = vl_api_client_index_to_input_queue (client_index); + if (!q) + return; + + mp = vl_msg_api_alloc (sizeof (*mp)); + mp->client_index = client_index; + mp->pid = pid; + mp->is_ipv6 = is_ipv6; + clib_memcpy (&mp->hostname, hostname, vec_len (hostname)); + mp->hostname[vec_len (hostname) + 1] = '\n'; + clib_memcpy (&mp->host_address[0], host_address, 16); + clib_memcpy (&mp->router_address[0], router_address, 16); + + if (NULL != host_mac) + clib_memcpy (&mp->host_mac[0], host_mac, 6); + + mp->_vl_msg_id = ntohs (VL_API_DHCP_COMPL_EVENT); + + vl_msg_api_send_shmem (q, (u8 *) & mp); +} + +static void vl_api_dhcp_proxy_config_2_t_handler + (vl_api_dhcp_proxy_config_2_t * mp) +{ + if (mp->is_ipv6 == 0) + dhcpv4_proxy_config_2 (mp); + else + dhcpv6_proxy_config_2 (mp); +} + +static void vl_api_dhcp_client_config_t_handler + (vl_api_dhcp_client_config_t * mp) +{ + vlib_main_t *vm = vlib_get_main (); + vl_api_dhcp_client_config_reply_t *rmp; + int rv = 0; + + VALIDATE_SW_IF_INDEX (mp); + + rv = dhcp_client_config (vm, ntohl (mp->sw_if_index), + mp->hostname, mp->is_add, mp->client_index, + mp->want_dhcp_event ? dhcp_compl_event_callback : + NULL, mp->pid); + + BAD_SW_IF_INDEX_LABEL; + + REPLY_MACRO (VL_API_DHCP_CLIENT_CONFIG_REPLY); +} + +/* + * dhcp_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/vnet_all_api_h.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_dhcp; +#undef _ +} + +static clib_error_t * +dhcp_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 (dhcp_api_hookup); + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |