예제 #1
0
파일: dhcp.c 프로젝트: elitak/ipxe
	[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 ) = {
예제 #2
0
파일: dhcpsrv.c 프로젝트: gxliu/MQX_3.8.0
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 */
예제 #3
0
파일: dhcp.c 프로젝트: lyu571/xcat-dep
	[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,
};