| -rw-r--r-- | libopie2/opienet/dhcp.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libopie2/opienet/dhcp.h b/libopie2/opienet/dhcp.h index 368e375..6ba4c53 100644 --- a/libopie2/opienet/dhcp.h +++ b/libopie2/opienet/dhcp.h @@ -13,64 +13,65 @@ * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of The Internet Software Consortium nor the names * of its contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * This software has been written for the Internet Software Consortium * by Ted Lemon in cooperation with Vixie Enterprises. To learn more * about the Internet Software Consortium, see ``http://www.isc.org''. * To learn more about Vixie Enterprises, see ``http://www.vix.com''. */ #ifndef DHCP_H #define DHCP_H + #define DHCP_UDP_OVERHEAD (14 + /* Ethernet header */ \ 20 + /* IP header */ \ 8) /* UDP header */ #define DHCP_SNAME_LEN 64 #define DHCP_FILE_LEN 128 #define DHCP_FIXED_NON_UDP 236 #define DHCP_FIXED_LEN (DHCP_FIXED_NON_UDP + DHCP_UDP_OVERHEAD) /* Everything but options. */ #define DHCP_MTU_MAX 1500 #define DHCP_OPTION_LEN (DHCP_MTU_MAX - DHCP_FIXED_LEN) #define BOOTP_MIN_LEN 300 #define DHCP_MIN_LEN 548 struct dhcp_packet { u_int8_t op; /* 0: Message opcode/type */ u_int8_t htype; /* 1: Hardware addr type (net/if_types.h) */ u_int8_t hlen; /* 2: Hardware addr length */ u_int8_t hops; /* 3: Number of relay agent hops from client */ u_int32_t xid; /* 4: Transaction ID */ u_int16_t secs; /* 8: Seconds since client started looking */ u_int16_t flags; /* 10: Flag bits */ struct in_addr ciaddr; /* 12: Client IP address (if already in use) */ struct in_addr yiaddr; /* 16: Client IP address */ struct in_addr siaddr; /* 18: IP address of next server to talk to */ struct in_addr giaddr; /* 20: DHCP relay agent IP address */ unsigned char chaddr [16]; /* 24: Client hardware address */ char sname [DHCP_SNAME_LEN]; /* 40: Server name */ char file [DHCP_FILE_LEN]; /* 104: Boot filename */ unsigned char options [DHCP_OPTION_LEN]; /* 212: Optional parameters (actual length dependent on MTU). */ @@ -168,34 +169,35 @@ struct dhcp_packet { immediately and shamelessly break this, so don't count on it continuing to work. */ #define DHO_AUTHENTICATE 210 #define DHO_END 255 /* DHCP message types. */ #define DHCPDISCOVER 1 #define DHCPOFFER 2 #define DHCPREQUEST 3 #define DHCPDECLINE 4 #define DHCPACK 5 #define DHCPNAK 6 #define DHCPRELEASE 7 #define DHCPINFORM 8 /* Relay Agent Information option subtypes: */ #define RAI_CIRCUIT_ID 1 #define RAI_REMOTE_ID 2 #define RAI_AGENT_ID 3 /* FQDN suboptions: */ #define FQDN_NO_CLIENT_UPDATE 1 #define FQDN_SERVER_UPDATE 2 #define FQDN_ENCODED 3 #define FQDN_RCODE1 4 #define FQDN_RCODE2 5 #define FQDN_HOSTNAME 6 #define FQDN_DOMAINNAME 7 #define FQDN_FQDN 8 #define FQDN_SUBOPTION_COUNT 8 + #endif |