[DHCPINFORM] = BOOTP_REQUEST,
};
/** Raw option data for options common to all DHCP requests */
static uint8_t dhcp_request_options_data[] = {
DHCP_MESSAGE_TYPE, DHCP_BYTE ( 0 ),
DHCP_MAX_MESSAGE_SIZE,
DHCP_WORD ( ETH_MAX_MTU - 20 /* IP header */ - 8 /* UDP header */ ),
DHCP_CLIENT_ARCHITECTURE, DHCP_ARCH_CLIENT_ARCHITECTURE,
DHCP_CLIENT_NDI, DHCP_ARCH_CLIENT_NDI,
DHCP_VENDOR_CLASS_ID, DHCP_ARCH_VENDOR_CLASS_ID,
DHCP_USER_CLASS_ID, DHCP_STRING ( 'i', 'P', 'X', 'E' ),
DHCP_PARAMETER_REQUEST_LIST,
DHCP_OPTION ( DHCP_SUBNET_MASK, DHCP_ROUTERS, DHCP_DNS_SERVERS,
DHCP_LOG_SERVERS, DHCP_HOST_NAME, DHCP_DOMAIN_NAME,
DHCP_ROOT_PATH, DHCP_VENDOR_ENCAP, DHCP_VENDOR_CLASS_ID,
DHCP_TFTP_SERVER_NAME, DHCP_BOOTFILE_NAME,
128, 129, 130, 131, 132, 133, 134, 135, /* for PXE */
DHCP_EB_ENCAP, DHCP_ISCSI_INITIATOR_IQN ),
DHCP_END
};
/** DHCP server address setting */
struct setting dhcp_server_setting __setting ( SETTING_MISC ) = {
.name = "dhcp-server",
.description = "DHCP server",
.tag = DHCP_SERVER_IDENTIFIER,
.type = &setting_type_ipv4,
};
/** DHCP user class setting */
struct setting user_class_setting __setting ( SETTING_HOST_EXTRA ) = {
static void DHCPSRV_write_header
(
DHCPSRV_STATE_STRUCT_PTR state,
DHCPSRV_ADDR_STRUCT_PTR lease_ptr,
uint_32 lease_time,
uchar msgtype
)
{ /* Body */
DHCP_HEADER_PTR outp;
DHCP_HEADER_PTR inp;
uchar_ptr optptr;
volatile uint_32 optlen;
uint_32 temp_long;
uint_16 temp_short;
uchar temp_char;
outp = (DHCP_HEADER_PTR)state->SND_BUFFER;
inp = (DHCP_HEADER_PTR)state->RCV_BUFFER;
/* Build a DHCPOFFER, DHCPACK, or DHCPNAK packet */
htonc(outp->OP, DHCPOP_BOOTREPLY);
htonc(outp->HTYPE, ARPLINK_ETHERNET);
temp_char = ntohc(inp->HLEN);
htonc(outp->HLEN, temp_char);
htonc(outp->HOPS, 0);
/* Use client's existing transaction ID */
temp_long = ntohl(inp->XID);
htonl(outp->XID, temp_long);
htons(outp->SECS, 0);
if (ntohl(inp->GIADDR) == 0) {
htons(outp->FLAGS, 0);
} else {
temp_short = ntohs(inp->FLAGS);
htons(outp->FLAGS, temp_short);
} /* Endif */
if (msgtype == DHCPTYPE_DHCPOFFER) {
htonl(outp->CIADDR, 0);
} else {
temp_long = ntohl(inp->CIADDR);
htonl(outp->CIADDR, temp_long);
} /* Endif */
if (msgtype == DHCPTYPE_DHCPNAK) {
htonl(outp->YIADDR, 0);
htonl(outp->SIADDR, 0);
} else {
htonl(outp->YIADDR, lease_ptr->IP_ADDR);
htonl(outp->SIADDR, lease_ptr->OPTIONS->SADDR);
} /* Endif */
htonl(outp->GIADDR, 0);
_mem_copy(inp->CHADDR, outp->CHADDR, sizeof(outp->CHADDR));
if (msgtype == DHCPTYPE_DHCPNAK) {
_mem_zero(outp->SNAME, sizeof(outp->SNAME));
_mem_zero(outp->FILE, sizeof(outp->FILE));
} else {
_mem_copy(lease_ptr->OPTIONS->SNAME, outp->SNAME, sizeof(outp->SNAME));
_mem_copy(lease_ptr->OPTIONS->FILE, outp->FILE, sizeof(outp->FILE));
} /* Endif */
/*
** Fill in the required response options. These are message type,
** subnet mask, and server id.
*/
optlen = sizeof(DHCP_HEADER);
optptr = state->SND_BUFFER + optlen;
/* The Magic Cookie must always be the first thing in the OPTIONS */
htonl(optptr, DHCP_MAGIC);
optptr += DHCPSIZE_MAGIC;
optlen += DHCPSIZE_MAGIC;
#define DHCP_OPTION(type,len,val) \
htonc(optptr, DHCPOPT_ ## type); optptr++; optlen++; \
htonc(optptr, DHCPSIZE_ ## type); optptr++; optlen++; \
hton ## len(optptr, val); \
optptr += DHCPSIZE_ ## type; \
optlen += DHCPSIZE_ ## type
DHCP_OPTION(MSGTYPE, c, msgtype);
if (msgtype != DHCPTYPE_DHCPNAK) {
DHCP_OPTION(SERVERID, l, lease_ptr->OPTIONS->SERVERID);
DHCP_OPTION(MASK, l, lease_ptr->OPTIONS->MASK);
DHCP_OPTION(LEASE, l, lease_time);
} /* Endif */
state->SND_BUFFER_LEN = optlen;
} /* Endbody */
[DHCPINFORM] = BOOTP_REQUEST,
};
/** Raw option data for options common to all DHCP requests */
static uint8_t dhcp_request_options_data[] = {
DHCP_MESSAGE_TYPE, DHCP_BYTE ( 0 ),
DHCP_MAX_MESSAGE_SIZE,
DHCP_WORD ( ETH_MAX_MTU - 20 /* IP header */ - 8 /* UDP header */ ),
DHCP_CLIENT_ARCHITECTURE, DHCP_ARCH_CLIENT_ARCHITECTURE,
DHCP_CLIENT_NDI, DHCP_ARCH_CLIENT_NDI,
DHCP_VENDOR_CLASS_ID, DHCP_ARCH_VENDOR_CLASS_ID,
DHCP_USER_CLASS_ID, DHCP_STRING ( 'i', 'P', 'X', 'E' ),
DHCP_PARAMETER_REQUEST_LIST,
DHCP_OPTION ( DHCP_SUBNET_MASK, DHCP_ROUTERS, DHCP_DNS_SERVERS,
DHCP_LOG_SERVERS, DHCP_HOST_NAME, DHCP_DOMAIN_NAME,
DHCP_ROOT_PATH, DHCP_VENDOR_ENCAP, DHCP_VENDOR_CLASS_ID,
DHCP_TFTP_SERVER_NAME, DHCP_BOOTFILE_NAME,
DHCP_EB_ENCAP, DHCP_ISCSI_INITIATOR_IQN ),
DHCP_END
};
/** Version number feature */
FEATURE_VERSION ( VERSION_MAJOR, VERSION_MINOR, VERSION_PATCH );
/** DHCP server address setting */
struct setting dhcp_server_setting __setting = {
.name = "dhcp-server",
.description = "DHCP server address",
.tag = DHCP_SERVER_IDENTIFIER,
.type = &setting_type_ipv4,
};