/* ----------------------------------------------------------------------- * * * Copyright 2007 H. Peter Anvin - All Rights Reserved * Copyright 2011 Timothy J Gleason <timmgleason_at_gmail.com> - All Rights Reserved * * Permission is hereby granted, free of charge, to any person * obtaining a copy of this software and associated documentation * files (the "Software"), to deal in the Software without * restriction, including without limitation the rights to use, * copy, modify, merge, publish, distribute, sublicense, and/or * sell copies of the Software, and to permit persons to whom * the Software is furnished to do so, subject to the following * conditions: * * The above copyright notice and this permission notice shall * be included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * * ----------------------------------------------------------------------- */ #include <stdint.h> typedef struct dhcp { uint8_t op; /* message opcode */ uint8_t htype; /* Hardware address type */ uint8_t hlen; /* Hardware address length */ uint8_t hops; /* Used by relay agents */ uint32_t xid; /* transaction id */ uint16_t secs; /* Secs elapsed since client boot */ uint16_t flags; /* DHCP Flags field */ uint8_t ciaddr[4]; /* client IP addr */ uint8_t yiaddr[4]; /* 'Your' IP addr. (from server) */ uint8_t siaddr[4]; /* Boot server IP addr */ uint8_t giaddr[4]; /* Relay agent IP addr */ uint8_t chaddr[16]; /* Client hardware addr */ uint8_t sname[64]; /* Optl. boot server hostname */ uint8_t file[128]; /* boot file name (ascii path) */ uint8_t cookie[4]; /* Magic cookie */ uint8_t options[1020]; /* Options */ } dhcp_t;