static u8 *add_vci(u8 *e)
{
char *vci = NULL;
char *env_vci = env_get("bootp_vci");
#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_NET_VCI_STRING)
vci = CONFIG_SPL_NET_VCI_STRING;
#elif defined(CONFIG_BOOTP_VCI_STRING)
vci = CONFIG_BOOTP_VCI_STRING;
#endif
if (env_vci)
vci = env_vci;
if (vci)
put_vci(e, vci);
return e;
}
/*
* Warning: no field size check - change CONFIG_BOOTP_* at your own risk!
*/
static int BootpExtended(u8 *e)
{
u8 *start = e;
*e++ = 99; /* RFC1048 Magic Cookie */
*e++ = 130;
*e++ = 83;
*e++ = 99;
#if defined(CONFIG_CMD_DHCP)
*e++ = 53; /* DHCP Message Type */
*e++ = 1;
*e++ = DHCP_DISCOVER;
*e++ = 57; /* Maximum DHCP Message Size */
*e++ = 2;
*e++ = (576 - 312 + OPT_FIELD_SIZE) >> 16;
*e++ = (576 - 312 + OPT_FIELD_SIZE) & 0xff;
#endif
#if defined(CONFIG_BOOTP_VCI_STRING) || \
(defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_NET_VCI_STRING))
#ifdef CONFIG_SPL_BUILD
put_vci(e, CONFIG_SPL_NET_VCI_STRING);
#else
put_vci(e, CONFIG_BOOTP_VCI_STRING);
#endif
#endif
#if defined(CONFIG_BOOTP_SUBNETMASK)
*e++ = 1; /* Subnet mask request */
*e++ = 4;
e += 4;
#endif
#if defined(CONFIG_BOOTP_GATEWAY)
*e++ = 3; /* Default gateway request */
*e++ = 4;
e += 4;
#endif
#if defined(CONFIG_BOOTP_DNS)
*e++ = 6; /* Domain Name Server */
*e++ = 4;
e += 4;
#endif
#if defined(CONFIG_BOOTP_HOSTNAME)
*e++ = 12; /* Host name request */
*e++ = 32;
e += 32;
#endif
#if defined(CONFIG_BOOTP_BOOTFILESIZE)
*e++ = 13; /* Boot file size */
*e++ = 2;
e += 2;
#endif
#if defined(CONFIG_BOOTP_BOOTPATH)
*e++ = 17; /* Boot path */
*e++ = 32;
e += 32;
#endif
#if defined(CONFIG_BOOTP_NISDOMAIN)
*e++ = 40; /* NIS Domain name request */
*e++ = 32;
e += 32;
#endif
#if defined(CONFIG_BOOTP_NTPSERVER)
*e++ = 42;
*e++ = 4;
e += 4;
#endif
*e++ = 255; /* End of the list */
return e - start;
}
static int DhcpExtended(u8 *e, int message_type, IPaddr_t ServerID,
IPaddr_t RequestedIP)
{
u8 *start = e;
u8 *cnt;
#if defined(CONFIG_BOOTP_PXE)
char *uuid;
u16 clientarch;
#endif
#if defined(CONFIG_BOOTP_VENDOREX)
u8 *x;
#endif
#if defined(CONFIG_BOOTP_SEND_HOSTNAME)
char *hostname;
#endif
*e++ = 99; /* RFC1048 Magic Cookie */
*e++ = 130;
*e++ = 83;
*e++ = 99;
*e++ = 53; /* DHCP Message Type */
*e++ = 1;
*e++ = message_type;
*e++ = 57; /* Maximum DHCP Message Size */
*e++ = 2;
*e++ = (576 - 312 + OPT_FIELD_SIZE) >> 8;
*e++ = (576 - 312 + OPT_FIELD_SIZE) & 0xff;
if (ServerID) {
int tmp = ntohl(ServerID);
*e++ = 54; /* ServerID */
*e++ = 4;
*e++ = tmp >> 24;
*e++ = tmp >> 16;
*e++ = tmp >> 8;
*e++ = tmp & 0xff;
}
if (RequestedIP) {
int tmp = ntohl(RequestedIP);
*e++ = 50; /* Requested IP */
*e++ = 4;
*e++ = tmp >> 24;
*e++ = tmp >> 16;
*e++ = tmp >> 8;
*e++ = tmp & 0xff;
}
#if defined(CONFIG_BOOTP_SEND_HOSTNAME)
hostname = getenv("hostname");
if (hostname) {
int hostnamelen = strlen(hostname);
*e++ = 12; /* Hostname */
*e++ = hostnamelen;
memcpy(e, hostname, hostnamelen);
e += hostnamelen;
}
#endif
#if defined(CONFIG_BOOTP_PXE)
clientarch = CONFIG_BOOTP_PXE_CLIENTARCH;
*e++ = 93; /* Client System Architecture */
*e++ = 2;
*e++ = (clientarch >> 8) & 0xff;
*e++ = clientarch & 0xff;
*e++ = 94; /* Client Network Interface Identifier */
*e++ = 3;
*e++ = 1; /* type field for UNDI */
*e++ = 0; /* major revision */
*e++ = 0; /* minor revision */
uuid = getenv("pxeuuid");
if (uuid) {
if (uuid_str_valid(uuid)) {
*e++ = 97; /* Client Machine Identifier */
*e++ = 17;
*e++ = 0; /* type 0 - UUID */
uuid_str_to_bin(uuid, e, UUID_STR_FORMAT_STD);
e += 16;
} else {
printf("Invalid pxeuuid: %s\n", uuid);
}
}
#endif
#ifdef CONFIG_BOOTP_VCI_STRING
put_vci(e, CONFIG_BOOTP_VCI_STRING);
#endif
#if defined(CONFIG_BOOTP_VENDOREX)
x = dhcp_vendorex_prep(e);
if (x)
return x - start;
#endif
*e++ = 55; /* Parameter Request List */
cnt = e++; /* Pointer to count of requested items */
*cnt = 0;
#if defined(CONFIG_BOOTP_SUBNETMASK)
*e++ = 1; /* Subnet Mask */
*cnt += 1;
#endif
#if defined(CONFIG_BOOTP_TIMEOFFSET)
*e++ = 2;
*cnt += 1;
#endif
#if defined(CONFIG_BOOTP_GATEWAY)
*e++ = 3; /* Router Option */
*cnt += 1;
#endif
#if defined(CONFIG_BOOTP_DNS)
*e++ = 6; /* DNS Server(s) */
*cnt += 1;
#endif
#if defined(CONFIG_BOOTP_HOSTNAME)
*e++ = 12; /* Hostname */
*cnt += 1;
#endif
#if defined(CONFIG_BOOTP_BOOTFILESIZE)
*e++ = 13; /* Boot File Size */
*cnt += 1;
#endif
#if defined(CONFIG_BOOTP_BOOTPATH)
*e++ = 17; /* Boot path */
*cnt += 1;
#endif
#if defined(CONFIG_BOOTP_NISDOMAIN)
*e++ = 40; /* NIS Domain name request */
*cnt += 1;
#endif
#if defined(CONFIG_BOOTP_NTPSERVER)
*e++ = 42;
*cnt += 1;
#endif
/* no options, so back up to avoid sending an empty request list */
if (*cnt == 0)
e -= 2;
*e++ = 255; /* End of the list */
/* Pad to minimal length */
#ifdef CONFIG_DHCP_MIN_EXT_LEN
while ((e - start) < CONFIG_DHCP_MIN_EXT_LEN)
*e++ = 0;
#endif
return e - start;
}
