diff options
Diffstat (limited to 'branches/1.0/tinyNET/src/dhcp/tnet_dhcp.c')
| -rw-r--r-- | branches/1.0/tinyNET/src/dhcp/tnet_dhcp.c | 338 |
1 files changed, 0 insertions, 338 deletions
diff --git a/branches/1.0/tinyNET/src/dhcp/tnet_dhcp.c b/branches/1.0/tinyNET/src/dhcp/tnet_dhcp.c deleted file mode 100644 index 8e7dbe6..0000000 --- a/branches/1.0/tinyNET/src/dhcp/tnet_dhcp.c +++ /dev/null @@ -1,338 +0,0 @@ -/* -* Copyright (C) 2009-2010 Mamadou Diop. -* -* Contact: Mamadou Diop <diopmamadou(at)doubango.org> -* -* This file is part of Open Source Doubango Framework. -* -* DOUBANGO is free software: you can redistribute it and/or modify -* it under the terms of the GNU General Public License as published by -* the Free Software Foundation, either version 3 of the License, or -* (at your option) any later version. -* -* DOUBANGO is distributed in the hope that it will be useful, -* but WITHOUT ANY WARRANTY; without even the implied warranty of -* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -* GNU General Public License for more details. -* -* You should have received a copy of the GNU General Public License -* along with DOUBANGO. -* -*/ -/**@file tnet_dhcp.c - * @brief DHCP/BOOTP (RFC 2131 - Dynamic Host Configuration Protocol) utilities function for P-CSCF discovery(RFC 3319 and 3361). - * Also implement: RFC 3315, 3118, 3319, 3825 (Geoconf), 4676 (Civic Addresses Configuration Information) ... - * - * @author Mamadou Diop <diopmamadou(at)doubango.org> - * - * @date Created: Sat Nov 8 16:54:58 2009 mdiop - */ -#include "tnet_dhcp.h" - -#include "../tnet_endianness.h" - -#include "tsk_string.h" -#include "tsk_thread.h" -#include "tsk_memory.h" -#include "tsk_time.h" -#include "tsk_debug.h" - -#include <string.h> - -// Useful link: http://support.microsoft.com/?scid=kb%3Ben-us%3B169289&x=21&y=14 -// Another one: http://www.iana.org/assignments/bootp-dhcp-parameters/ -// Another one: http://www.slideshare.net/raini/DHCP-Presentation-v102 -// RFC 3319 Dynamic Host Configuration Protocol (DHCPv6) Options for Session Initiation Protocol (SIP) Servers -// RFC 3361 Dynamic Host Configuration Protocol (DHCP-for-IPv4) Option for Session Initiation Protocol (SIP) Servers - -/**@defgroup tnet_dhcp_group DHCPv4/BOOTP (RFC 2131) implementation. -*/ - -/**@ingroup tnet_dhcp_group -* Creates new DHCPv4 context. -*/ -tnet_dhcp_ctx_t* tnet_dhcp_ctx_create() -{ - return tsk_object_new(tnet_dhcp_ctx_def_t); -} - -/**@ingroup tnet_dhcp_group -* Creates new DHCPv4 parameters. -*/ -tnet_dhcp_params_t* tnet_dhcp_params_create() -{ - return tsk_object_new(tnet_dhcp_params_def_t); -} - -/* FIXME: USE retransmission mech (*2*2...) -*/ -/**@ingroup tnet_dhcp_group -*/ -tnet_dhcp_reply_t* tnet_dhcp_send_request(tnet_dhcp_ctx_t* ctx, tnet_dhcp_request_t* request) -{ - tsk_buffer_t *output; - tnet_dhcp_reply_t* reply = tsk_null; - int ret; - struct timeval tv; - fd_set set; - uint64_t timeout = 0; - tsk_list_item_t *item; - const tnet_interface_t *iface; - - tnet_socket_t *localsocket4 = tsk_null; - struct sockaddr_storage server; - - if(!ctx || !request){ - goto bail; - } - - localsocket4 = tnet_socket_create(TNET_SOCKET_HOST_ANY, ctx->port_client, tnet_socket_type_udp_ipv4); - if(!TNET_SOCKET_IS_VALID(localsocket4)){ - TSK_DEBUG_ERROR("Failed to create/bind DHCP client socket."); - goto bail; - } - - /* Always wait for 200ms before retransmission */ - tv.tv_sec = 0; - tv.tv_usec = (200 * 1000); - - if(tnet_sockaddr_init("255.255.255.255", ctx->server_port, tnet_socket_type_udp_ipv4, &server)){ - TNET_PRINT_LAST_ERROR("Failed to initialize the DHCP server address"); - goto bail; - } - - /* ENABLE BROADCASTING */ - { -#if defined(SOLARIS) - char yes = '1'; -#else - int yes = 1; -#endif - if(setsockopt(localsocket4->fd, SOL_SOCKET, SO_BROADCAST, (char*)&yes, sizeof(int))){ - TNET_PRINT_LAST_ERROR("Failed to enable broadcast option"); - goto bail; - } - } - - /* Set timeout */ - timeout = tsk_time_epoch() + ctx->timeout; - - do - { - /* RFC 2131 - 3.6 Use of DHCP in clients with multiple interfaces - A client with multiple network interfaces must use DHCP through each - interface independently to obtain configuration information - parameters for those separate interfaces. - */ - - tsk_list_foreach(item, ctx->interfaces){ - iface = item->data; - - /* Set FD */ - FD_ZERO(&set); - FD_SET(localsocket4->fd, &set); - - /* ciaddr */ - if(request->type == dhcp_type_inform){ - struct sockaddr_storage ss; - if(!tnet_get_sockaddr(localsocket4->fd, &ss)){ - uint32_t addr = tnet_htonl_2(&((struct sockaddr_in*)&ss)->sin_addr); - memcpy(&request->ciaddr, &addr, 4); - } - } - - /* chaddr */ - memset(request->chaddr, 0, sizeof(request->chaddr)); - request->hlen = iface->mac_address_length > sizeof(request->chaddr) ? sizeof(request->chaddr) : iface->mac_address_length; - memcpy(request->chaddr, iface->mac_address, request->hlen); - - /* Serialize and send to the server. */ - if(!(output = tnet_dhcp_message_serialize(ctx, request))){ - TSK_DEBUG_ERROR("Failed to serialize the DHCP message."); - goto next_iface; - } - /* Send the request to the DHCP server */ - if((ret =tnet_sockfd_sendto(localsocket4->fd, (const struct sockaddr*)&server, output->data, output->size))<0){ - TNET_PRINT_LAST_ERROR("Failed to send DHCP request"); - - tsk_thread_sleep(150); // wait 150ms before trying the next iface. - goto next_iface; - } - /* wait for response */ - if((ret = select(localsocket4->fd+1, &set, NULL, NULL, &tv))<0){ /* Error */ - TNET_PRINT_LAST_ERROR("select have failed."); - tsk_thread_sleep(150); // wait 150ms before trying the next iface. - goto next_iface; - } - else if(ret == 0) - { /* timeout ==> do nothing */ - } - else - { /* there is data to read */ - tsk_size_t len = 0; - void* data = tsk_null; - - /* Check how how many bytes are pending */ - if((ret = tnet_ioctlt(localsocket4->fd, FIONREAD, &len))<0){ - goto next_iface; - } - - /* Receive pending data */ - data = tsk_calloc(len, sizeof(uint8_t)); - if((ret = tnet_sockfd_recv(localsocket4->fd, data, len, 0))<0){ - TSK_FREE(data); - - TNET_PRINT_LAST_ERROR("Failed to receive DHCP dgrams."); - goto next_iface; - } - - /* Parse the incoming response. */ - reply = tnet_dhcp_message_deserialize(ctx, data, (tsk_size_t)ret); - TSK_FREE(data); - - if(reply) - { /* response successfuly parsed */ - if(request->xid != reply->xid) - { /* Not same transaction id ==> continue*/ - TSK_OBJECT_SAFE_FREE(reply); - } - } - } - - next_iface: - TSK_OBJECT_SAFE_FREE(output); - if(reply){ - goto bail; - } - } - //break;//FIXME - } - while(timeout > tsk_time_epoch()); - -bail: - TSK_OBJECT_SAFE_FREE(localsocket4); - - return reply; -} - -/**@ingroup tnet_dhcp_group -*/ -tnet_dhcp_reply_t* tnet_dhcp_query(tnet_dhcp_ctx_t* ctx, tnet_dhcp_message_type_t type, tnet_dhcp_params_t* params) -{ - tnet_dhcp_reply_t* reply = tsk_null; - tnet_dhcp_request_t* request = tnet_dhcp_request_create(); - - if(!ctx || !params || !request){ - goto bail; - } - - request->type = type; - tnet_dhcp_message_add_codes(request, params->codes, params->codes_count); - - reply = tnet_dhcp_send_request(ctx, request); - -bail: - TSK_OBJECT_SAFE_FREE(request); - - return reply; -} - -/**@ingroup tnet_dhcp_group -*/ -int tnet_dhcp_params_add_code(tnet_dhcp_params_t* params, tnet_dhcp_option_code_t code) -{ - if(params){ - if(params->codes_count < TNET_DHCP_MAX_CODES){ - unsigned i; - for(i=0; i<params->codes_count; i++){ - if(params->codes[i] == code){ - return -3; - } - } - params->codes[params->codes_count++] = code; - } - else return -2; - } - return -1; -} - - - -//================================================================================================= -// [[DHCP CONTEXT]] object definition -// -static tsk_object_t* tnet_dhcp_ctx_ctor(tsk_object_t * self, va_list * app) -{ - tnet_dhcp_ctx_t *ctx = self; - if(ctx){ - tnet_host_t host; - - ctx->vendor_id = tsk_strdup(TNET_DHCP_VENDOR_ID_DEFAULT); - if(!tnet_gethostname(&host)){ - ctx->hostname = tsk_strndup(host, tsk_strlen(host)); - } - ctx->timeout = TNET_DHCP_TIMEOUT_DEFAULT; - ctx->max_msg_size = TNET_DHCP_MAX_MSG_SIZE; - ctx->port_client = TNET_DHCP_CLIENT_PORT; - ctx->server_port = TNET_DHCP_SERVER_PORT; - ctx->interfaces = tnet_get_interfaces(); - - if(!ctx->interfaces || TSK_LIST_IS_EMPTY(ctx->interfaces)){ - TSK_DEBUG_ERROR("Failed to retrieve network interfaces."); - } - - tsk_safeobj_init(ctx); - } - return self; -} - -static tsk_object_t* tnet_dhcp_ctx_dtor(tsk_object_t * self) -{ - tnet_dhcp_ctx_t *ctx = self; - if(ctx){ - tsk_safeobj_deinit(ctx); - - TSK_FREE(ctx->vendor_id); - TSK_FREE(ctx->hostname); - - TSK_OBJECT_SAFE_FREE(ctx->interfaces); - } - return self; -} - -static const tsk_object_def_t tnet_dhcp_ctx_def_s = -{ - sizeof(tnet_dhcp_ctx_t), - tnet_dhcp_ctx_ctor, - tnet_dhcp_ctx_dtor, - tsk_null, -}; -const tsk_object_def_t *tnet_dhcp_ctx_def_t = &tnet_dhcp_ctx_def_s; - -//================================================================================================= -// [[DHCP PARAMS]] object definition -// -static tsk_object_t* tnet_dhcp_params_ctor(tsk_object_t * self, va_list * app) -{ - tnet_dhcp_params_t *params = self; - if(params){ - } - return self; -} - -static tsk_object_t* tnet_dhcp_params_dtor(tsk_object_t * self) -{ - tnet_dhcp_params_t *params = self; - if(params){ - } - return self; -} - -static const tsk_object_def_t tnet_dhcp_params_def_s = -{ - sizeof(tnet_dhcp_params_t), - tnet_dhcp_params_ctor, - tnet_dhcp_params_dtor, - tsk_null, -}; -const tsk_object_def_t *tnet_dhcp_params_def_t = &tnet_dhcp_params_def_s; |
