8  * 1. Redistributions of source code must retain the above copyright
43 #define STATE_SENDING         1
67 #define DHCP_REQUEST        1
69 #define DHCP_HTYPE_ETHERNET 1
76 #define DHCPDISCOVER  1
84 #define DHCP_OPTION_SUBNET_MASK   1
101   *optptr++ = 1;  in add_msg_type()
143 create_msg(register struct dhcp_msg *m)  in create_msg()  argument
145   m->op = DHCP_REQUEST;  in create_msg()
146   m->htype = DHCP_HTYPE_ETHERNET;  in create_msg()
147   m->hlen = s.mac_len;  in create_msg()
148   m->hops = 0;  in create_msg()
149   memcpy(m->xid, xid, sizeof(m->xid));  in create_msg()
150   m->secs = 0;  in create_msg()
151   m->flags = HTONS(BOOTP_BROADCAST); /*  Broadcast bit. */  in create_msg()
152   /*  uip_ipaddr_copy(m->ciaddr, uip_hostaddr);*/  in create_msg()
153   memcpy(m->ciaddr, uip_hostaddr, sizeof(m->ciaddr));  in create_msg()
154   memset(m->yiaddr, 0, sizeof(m->yiaddr));  in create_msg()
155   memset(m->siaddr, 0, sizeof(m->siaddr));  in create_msg()
156   memset(m->giaddr, 0, sizeof(m->giaddr));  in create_msg()
157   memcpy(m->chaddr, s.mac_addr, s.mac_len);  in create_msg()
158   memset(&m->chaddr[s.mac_len], 0, sizeof(m->chaddr) - s.mac_len);  in create_msg()
160   memset(m->sname, 0, sizeof(m->sname));  in create_msg()
161   memset(m->file, 0, sizeof(m->file));  in create_msg()
164   memcpy(m->options, magic_cookie, sizeof(magic_cookie));  in create_msg()
171   struct dhcp_msg *m = (struct dhcp_msg *)uip_appdata;  in send_discover()  local
173   create_msg(m);  in send_discover()
175   end = add_msg_type(&m->options[4], DHCPDISCOVER);  in send_discover()
186   struct dhcp_msg *m = (struct dhcp_msg *)uip_appdata;  in send_request()  local
188   create_msg(m);  in send_request()
190   end = add_msg_type(&m->options[4], DHCPREQUEST);  in send_request()
228     optptr += optptr[1] + 2;  in parse_options()
236   struct dhcp_msg *m = (struct dhcp_msg *)uip_appdata;  in parse_msg()  local
238   if(m->op == DHCP_REPLY &&  in parse_msg()
239      memcmp(m->xid, xid, sizeof(xid)) == 0 &&  in parse_msg()
240      memcmp(m->chaddr, s.mac_addr, s.mac_len) == 0) {  in parse_msg()
241     memcpy(s.ipaddr, m->yiaddr, 4);  in parse_msg()
242     return parse_options(&m->options[4], uip_datalen());  in parse_msg()
304 	 ntohs(s.lease_time[0])*65536ul + ntohs(s.lease_time[1]));  in PT_THREAD()
315   while(1) {  in PT_THREAD()