diff options
author | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 18:29:04 -0800 |
---|---|---|
committer | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 18:29:04 -0800 |
commit | e54eebbf1a908d65ee8cf80bab62821c05666d70 (patch) | |
tree | 4b825dc642cb6eb9a060e54bf8d69288fbee4904 /libnetutils/dhcpmsg.c | |
parent | a1e1c1b106423de09bc918502e7a51d4ffe5a4ae (diff) | |
download | system_core-e54eebbf1a908d65ee8cf80bab62821c05666d70.zip system_core-e54eebbf1a908d65ee8cf80bab62821c05666d70.tar.gz system_core-e54eebbf1a908d65ee8cf80bab62821c05666d70.tar.bz2 |
auto import from //depot/cupcake/@135843
Diffstat (limited to 'libnetutils/dhcpmsg.c')
-rw-r--r-- | libnetutils/dhcpmsg.c | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/libnetutils/dhcpmsg.c b/libnetutils/dhcpmsg.c deleted file mode 100644 index 1e0a233..0000000 --- a/libnetutils/dhcpmsg.c +++ /dev/null @@ -1,100 +0,0 @@ -/* - * Copyright 2008, The Android Open Source Project - * - * 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 <stdio.h> -#include <stdarg.h> -#include <string.h> -#include <netinet/in.h> - -#include "dhcpmsg.h" - -static void *init_dhcp_msg(dhcp_msg *msg, int type, void *hwaddr, uint32_t xid) -{ - uint8_t *x; - - memset(msg, 0, sizeof(dhcp_msg)); - - msg->op = OP_BOOTREQUEST; - msg->htype = HTYPE_ETHER; - msg->hlen = 6; - msg->hops = 0; - - msg->flags = htons(FLAGS_BROADCAST); - - msg->xid = xid; - - memcpy(msg->chaddr, hwaddr, 6); - - x = msg->options; - - *x++ = OPT_COOKIE1; - *x++ = OPT_COOKIE2; - *x++ = OPT_COOKIE3; - *x++ = OPT_COOKIE4; - - *x++ = OPT_MESSAGE_TYPE; - *x++ = 1; - *x++ = type; - - return x; -} - -int init_dhcp_discover_msg(dhcp_msg *msg, void *hwaddr, uint32_t xid) -{ - uint8_t *x; - - x = init_dhcp_msg(msg, DHCPDISCOVER, hwaddr, xid); - - *x++ = OPT_PARAMETER_LIST; - *x++ = 4; - *x++ = OPT_SUBNET_MASK; - *x++ = OPT_GATEWAY; - *x++ = OPT_DNS; - *x++ = OPT_BROADCAST_ADDR; - - *x++ = OPT_END; - - return DHCP_MSG_FIXED_SIZE + (x - msg->options); -} - -int init_dhcp_request_msg(dhcp_msg *msg, void *hwaddr, uint32_t xid, - uint32_t ipaddr, uint32_t serveraddr) -{ - uint8_t *x; - - x = init_dhcp_msg(msg, DHCPREQUEST, hwaddr, xid); - - *x++ = OPT_PARAMETER_LIST; - *x++ = 4; - *x++ = OPT_SUBNET_MASK; - *x++ = OPT_GATEWAY; - *x++ = OPT_DNS; - *x++ = OPT_BROADCAST_ADDR; - - *x++ = OPT_REQUESTED_IP; - *x++ = 4; - memcpy(x, &ipaddr, 4); - x += 4; - - *x++ = OPT_SERVER_ID; - *x++ = 4; - memcpy(x, &serveraddr, 4); - x += 4; - - *x++ = OPT_END; - - return DHCP_MSG_FIXED_SIZE + (x - msg->options); -} |