#ifdef CONFIG_STATUS_LED
#include <status_led.h>
#endif
+#if defined(CONFIG_BOOTP_RANDOM_DELAY) || defined(CONFIG_BOOTP_RANDOM_ID)
+#include "net_rand.h"
+#endif
-#define BOOTP_VENDOR_MAGIC 0x63825363 /* RFC1048 Magic Cookie */
+#define BOOTP_VENDOR_MAGIC 0x63825363 /* RFC1048 Magic Cookie */
-#define TIMEOUT 5000UL /* Milliseconds before trying BOOTP again */
+/*
+ * The timeout for the initial BOOTP/DHCP request used to be described by a
+ * counter of fixed-length timeout periods. TIMEOUT_COUNT represents
+ * that counter
+ *
+ * Now that the timeout periods are variable (exponential backoff and retry)
+ * we convert the timeout count to the absolute time it would have take to
+ * execute that many retries, and keep sending retry packets until that time
+ * is reached.
+ */
#ifndef CONFIG_NET_RETRY_COUNT
-# define TIMEOUT_COUNT 5 /* # of timeouts before giving up */
+# define TIMEOUT_COUNT 5 /* # of timeouts before giving up */
#else
# define TIMEOUT_COUNT (CONFIG_NET_RETRY_COUNT)
#endif
+#define TIMEOUT_MS ((3 + (TIMEOUT_COUNT * 5)) * 1000)
-#define PORT_BOOTPS 67 /* BOOTP server UDP port */
-#define PORT_BOOTPC 68 /* BOOTP client UDP port */
+#define PORT_BOOTPS 67 /* BOOTP server UDP port */
+#define PORT_BOOTPC 68 /* BOOTP client UDP port */
-#ifndef CONFIG_DHCP_MIN_EXT_LEN /* minimal length of extension list */
+#ifndef CONFIG_DHCP_MIN_EXT_LEN /* minimal length of extension list */
#define CONFIG_DHCP_MIN_EXT_LEN 64
#endif
-ulong BootpID;
-int BootpTry;
-#ifdef CONFIG_BOOTP_RANDOM_DELAY
-ulong seed1, seed2;
+#ifndef CONFIG_BOOTP_ID_CACHE_SIZE
+#define CONFIG_BOOTP_ID_CACHE_SIZE 4
#endif
+u32 bootp_ids[CONFIG_BOOTP_ID_CACHE_SIZE];
+unsigned int bootp_num_ids;
+int bootp_try;
+ulong bootp_start;
+ulong bootp_timeout;
+char net_nis_domain[32] = {0,}; /* Our NIS domain */
+char net_hostname[32] = {0,}; /* Our hostname */
+char net_root_path[64] = {0,}; /* Our bootpath */
+
#if defined(CONFIG_CMD_DHCP)
-dhcp_state_t dhcp_state = INIT;
-unsigned long dhcp_leasetime = 0;
-IPaddr_t NetDHCPServerIP = 0;
-static void DhcpHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src,
- unsigned len);
+static dhcp_state_t dhcp_state = INIT;
+static u32 dhcp_leasetime;
+static struct in_addr dhcp_server_ip;
+static void dhcp_handler(uchar *pkt, unsigned dest, struct in_addr sip,
+ unsigned src, unsigned len);
/* For Debug */
#if 0
}
}
#endif
-
-#if defined(CONFIG_BOOTP_VENDOREX)
-extern u8 *dhcp_vendorex_prep (u8 *e); /*rtn new e after add own opts. */
-extern u8 *dhcp_vendorex_proc (u8 *e); /*rtn next e if mine,else NULL */
#endif
-#endif
+static void bootp_add_id(ulong id)
+{
+ if (bootp_num_ids >= ARRAY_SIZE(bootp_ids)) {
+ size_t size = sizeof(bootp_ids) - sizeof(id);
-static int BootpCheckPkt(uchar *pkt, unsigned dest, unsigned src, unsigned len)
+ memmove(bootp_ids, &bootp_ids[1], size);
+ bootp_ids[bootp_num_ids - 1] = id;
+ } else {
+ bootp_ids[bootp_num_ids] = id;
+ bootp_num_ids++;
+ }
+}
+
+static bool bootp_match_id(ulong id)
+{
+ unsigned int i;
+
+ for (i = 0; i < bootp_num_ids; i++)
+ if (bootp_ids[i] == id)
+ return true;
+
+ return false;
+}
+
+static int check_packet(uchar *pkt, unsigned dest, unsigned src, unsigned len)
{
- Bootp_t *bp = (Bootp_t *) pkt;
+ struct bootp_hdr *bp = (struct bootp_hdr *)pkt;
int retval = 0;
if (dest != PORT_BOOTPC || src != PORT_BOOTPS)
retval = -1;
- else if (len < sizeof (Bootp_t) - OPT_SIZE)
+ else if (len < sizeof(struct bootp_hdr) - OPT_FIELD_SIZE)
retval = -2;
else if (bp->bp_op != OP_BOOTREQUEST &&
- bp->bp_op != OP_BOOTREPLY &&
- bp->bp_op != DHCP_OFFER &&
- bp->bp_op != DHCP_ACK &&
- bp->bp_op != DHCP_NAK ) {
+ bp->bp_op != OP_BOOTREPLY &&
+ bp->bp_op != DHCP_OFFER &&
+ bp->bp_op != DHCP_ACK &&
+ bp->bp_op != DHCP_NAK)
retval = -3;
- }
else if (bp->bp_htype != HWT_ETHER)
retval = -4;
else if (bp->bp_hlen != HWL_ETHER)
retval = -5;
- else if (NetReadLong((ulong*)&bp->bp_id) != BootpID) {
+ else if (!bootp_match_id(net_read_u32(&bp->bp_id)))
retval = -6;
- }
debug("Filtering pkt = %d\n", retval);
/*
* Copy parameters of interest from BOOTP_REPLY/DHCP_OFFER packet
*/
-static void BootpCopyNetParams(Bootp_t *bp)
+static void store_net_params(struct bootp_hdr *bp)
{
- IPaddr_t tmp_ip;
-
- NetCopyIP(&NetOurIP, &bp->bp_yiaddr);
#if !defined(CONFIG_BOOTP_SERVERIP)
- NetCopyIP(&tmp_ip, &bp->bp_siaddr);
- if (tmp_ip != 0)
- NetCopyIP(&NetServerIP, &bp->bp_siaddr);
- memcpy (NetServerEther, ((Ethernet_t *)NetRxPacket)->et_src, 6);
-#endif
+ struct in_addr tmp_ip;
+
+ net_copy_ip(&tmp_ip, &bp->bp_siaddr);
+ if (tmp_ip.s_addr != 0)
+ net_copy_ip(&net_server_ip, &bp->bp_siaddr);
+ memcpy(net_server_ethaddr,
+ ((struct ethernet_hdr *)net_rx_packet)->et_src, 6);
if (strlen(bp->bp_file) > 0)
- copy_filename (BootFile, bp->bp_file, sizeof(BootFile));
+ copy_filename(net_boot_file_name, bp->bp_file,
+ sizeof(net_boot_file_name));
- debug("Bootfile: %s\n", BootFile);
+ debug("net_boot_file_name: %s\n", net_boot_file_name);
/* Propagate to environment:
* don't delete exising entry when BOOTP / DHCP reply does
* not contain a new value
*/
- if (*BootFile) {
- setenv ("bootfile", BootFile);
- }
+ if (*net_boot_file_name)
+ setenv("bootfile", net_boot_file_name);
+#endif
+ net_copy_ip(&net_ip, &bp->bp_yiaddr);
}
-static int truncate_sz (const char *name, int maxlen, int curlen)
+static int truncate_sz(const char *name, int maxlen, int curlen)
{
if (curlen >= maxlen) {
- printf("*** WARNING: %s is too long (%d - max: %d) - truncated\n",
- name, curlen, maxlen);
+ printf("*** WARNING: %s is too long (%d - max: %d)"
+ " - truncated\n", name, curlen, maxlen);
curlen = maxlen - 1;
}
- return (curlen);
-}
-
-/*
- * Check if autoload is enabled. If so, use either NFS or TFTP to download
- * the boot file.
- */
-static void auto_load(void)
-{
- const char *s = getenv("autoload");
-
- if (s != NULL) {
- if (*s == 'n') {
- /*
- * Just use BOOTP to configure system;
- * Do not use TFTP to load the bootfile.
- */
- NetState = NETLOOP_SUCCESS;
- return;
- }
-#if defined(CONFIG_CMD_NFS)
- if (strcmp(s, "NFS") == 0) {
- /*
- * Use NFS to load the bootfile.
- */
- NfsStart();
- return;
- }
-#endif
- }
- TftpStart();
+ return curlen;
}
#if !defined(CONFIG_CMD_DHCP)
-static void BootpVendorFieldProcess (u8 * ext)
+static void bootp_process_vendor_field(u8 *ext)
{
int size = *(ext + 1);
debug("[BOOTP] Processing extension %d... (%d bytes)\n", *ext,
- *(ext + 1));
+ *(ext + 1));
- NetBootFileSize = 0;
+ net_boot_file_expected_size_in_blocks = 0;
switch (*ext) {
/* Fixed length fields */
- case 1: /* Subnet mask */
- if (NetOurSubnetMask == 0)
- NetCopyIP (&NetOurSubnetMask, (IPaddr_t *) (ext + 2));
+ case 1: /* Subnet mask */
+ if (net_netmask.s_addr == 0)
+ net_copy_ip(&net_netmask, (struct in_addr *)(ext + 2));
break;
- case 2: /* Time offset - Not yet supported */
+ case 2: /* Time offset - Not yet supported */
break;
/* Variable length fields */
- case 3: /* Gateways list */
- if (NetOurGatewayIP == 0) {
- NetCopyIP (&NetOurGatewayIP, (IPaddr_t *) (ext + 2));
- }
+ case 3: /* Gateways list */
+ if (net_gateway.s_addr == 0)
+ net_copy_ip(&net_gateway, (struct in_addr *)(ext + 2));
break;
- case 4: /* Time server - Not yet supported */
+ case 4: /* Time server - Not yet supported */
break;
- case 5: /* IEN-116 name server - Not yet supported */
+ case 5: /* IEN-116 name server - Not yet supported */
break;
case 6:
- if (NetOurDNSIP == 0) {
- NetCopyIP (&NetOurDNSIP, (IPaddr_t *) (ext + 2));
- }
+ if (net_dns_server.s_addr == 0)
+ net_copy_ip(&net_dns_server,
+ (struct in_addr *)(ext + 2));
#if defined(CONFIG_BOOTP_DNS2)
- if ((NetOurDNS2IP == 0) && (size > 4)) {
- NetCopyIP (&NetOurDNS2IP, (IPaddr_t *) (ext + 2 + 4));
- }
+ if ((net_dns_server2.s_addr == 0) && (size > 4))
+ net_copy_ip(&net_dns_server2,
+ (struct in_addr *)(ext + 2 + 4));
#endif
break;
- case 7: /* Log server - Not yet supported */
+ case 7: /* Log server - Not yet supported */
break;
- case 8: /* Cookie/Quote server - Not yet supported */
+ case 8: /* Cookie/Quote server - Not yet supported */
break;
- case 9: /* LPR server - Not yet supported */
+ case 9: /* LPR server - Not yet supported */
break;
- case 10: /* Impress server - Not yet supported */
+ case 10: /* Impress server - Not yet supported */
break;
- case 11: /* RPL server - Not yet supported */
+ case 11: /* RPL server - Not yet supported */
break;
- case 12: /* Host name */
- if (NetOurHostName[0] == 0) {
- size = truncate_sz ("Host Name", sizeof (NetOurHostName), size);
- memcpy (&NetOurHostName, ext + 2, size);
- NetOurHostName[size] = 0;
+ case 12: /* Host name */
+ if (net_hostname[0] == 0) {
+ size = truncate_sz("Host Name",
+ sizeof(net_hostname), size);
+ memcpy(&net_hostname, ext + 2, size);
+ net_hostname[size] = 0;
}
break;
- case 13: /* Boot file size */
+ case 13: /* Boot file size */
if (size == 2)
- NetBootFileSize = ntohs (*(ushort *) (ext + 2));
+ net_boot_file_expected_size_in_blocks =
+ ntohs(*(ushort *)(ext + 2));
else if (size == 4)
- NetBootFileSize = ntohl (*(ulong *) (ext + 2));
+ net_boot_file_expected_size_in_blocks =
+ ntohl(*(ulong *)(ext + 2));
break;
- case 14: /* Merit dump file - Not yet supported */
+ case 14: /* Merit dump file - Not yet supported */
break;
- case 15: /* Domain name - Not yet supported */
+ case 15: /* Domain name - Not yet supported */
break;
- case 16: /* Swap server - Not yet supported */
+ case 16: /* Swap server - Not yet supported */
break;
- case 17: /* Root path */
- if (NetOurRootPath[0] == 0) {
- size = truncate_sz ("Root Path", sizeof (NetOurRootPath), size);
- memcpy (&NetOurRootPath, ext + 2, size);
- NetOurRootPath[size] = 0;
+ case 17: /* Root path */
+ if (net_root_path[0] == 0) {
+ size = truncate_sz("Root Path",
+ sizeof(net_root_path), size);
+ memcpy(&net_root_path, ext + 2, size);
+ net_root_path[size] = 0;
}
break;
- case 18: /* Extension path - Not yet supported */
+ case 18: /* Extension path - Not yet supported */
/*
* This can be used to send the information of the
* vendor area in another file that the client can
*/
break;
/* IP host layer fields */
- case 40: /* NIS Domain name */
- if (NetOurNISDomain[0] == 0) {
- size = truncate_sz ("NIS Domain Name", sizeof (NetOurNISDomain), size);
- memcpy (&NetOurNISDomain, ext + 2, size);
- NetOurNISDomain[size] = 0;
+ case 40: /* NIS Domain name */
+ if (net_nis_domain[0] == 0) {
+ size = truncate_sz("NIS Domain Name",
+ sizeof(net_nis_domain), size);
+ memcpy(&net_nis_domain, ext + 2, size);
+ net_nis_domain[size] = 0;
}
break;
#if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_NTPSERVER)
case 42: /* NTP server IP */
- NetCopyIP(&NetNtpServerIP, (IPaddr_t *) (ext + 2));
+ net_copy_ip(&net_ntp_server, (struct in_addr *)(ext + 2));
break;
#endif
/* Application layer fields */
- case 43: /* Vendor specific info - Not yet supported */
+ case 43: /* Vendor specific info - Not yet supported */
/*
* Binary information to exchange specific
* product information.
}
}
-static void BootpVendorProcess (u8 * ext, int size)
+static void bootp_process_vendor(u8 *ext, int size)
{
u8 *end = ext + size;
ext += ext[1] + 2;
if (ext <= end)
- BootpVendorFieldProcess (opt);
+ bootp_process_vendor_field(opt);
}
}
- debug("[BOOTP] Received fields: \n");
- if (NetOurSubnetMask)
- debug("NetOurSubnetMask : %pI4\n", &NetOurSubnetMask);
-
- if (NetOurGatewayIP)
- debug("NetOurGatewayIP : %pI4", &NetOurGatewayIP);
+ debug("[BOOTP] Received fields:\n");
+ if (net_netmask.s_addr)
+ debug("net_netmask : %pI4\n", &net_netmask);
- if (NetBootFileSize)
- debug("NetBootFileSize : %d\n", NetBootFileSize);
+ if (net_gateway.s_addr)
+ debug("net_gateway : %pI4", &net_gateway);
- if (NetOurHostName[0])
- debug("NetOurHostName : %s\n", NetOurHostName);
+ if (net_boot_file_expected_size_in_blocks)
+ debug("net_boot_file_expected_size_in_blocks : %d\n",
+ net_boot_file_expected_size_in_blocks);
- if (NetOurRootPath[0])
- debug("NetOurRootPath : %s\n", NetOurRootPath);
+ if (net_hostname[0])
+ debug("net_hostname : %s\n", net_hostname);
- if (NetOurNISDomain[0])
- debug("NetOurNISDomain : %s\n", NetOurNISDomain);
+ if (net_root_path[0])
+ debug("net_root_path : %s\n", net_root_path);
- if (NetBootFileSize)
- debug("NetBootFileSize: %d\n", NetBootFileSize);
+ if (net_nis_domain[0])
+ debug("net_nis_domain : %s\n", net_nis_domain);
#if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_NTPSERVER)
- if (NetNtpServerIP)
- debug("NetNtpServerIP : %pI4\n", &NetNtpServerIP);
+ if (net_ntp_server)
+ debug("net_ntp_server : %pI4\n", &net_ntp_server);
#endif
}
/*
* Handle a BOOTP received packet.
*/
-static void
-BootpHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src,
- unsigned len)
+static void bootp_handler(uchar *pkt, unsigned dest, struct in_addr sip,
+ unsigned src, unsigned len)
{
- Bootp_t *bp;
+ struct bootp_hdr *bp;
debug("got BOOTP packet (src=%d, dst=%d, len=%d want_len=%zu)\n",
- src, dest, len, sizeof (Bootp_t));
+ src, dest, len, sizeof(struct bootp_hdr));
- bp = (Bootp_t *)pkt;
+ bp = (struct bootp_hdr *)pkt;
- if (BootpCheckPkt(pkt, dest, src, len)) /* Filter out pkts we don't want */
+ /* Filter out pkts we don't want */
+ if (check_packet(pkt, dest, src, len))
return;
/*
* Got a good BOOTP reply. Copy the data into our variables.
*/
#ifdef CONFIG_STATUS_LED
- status_led_set (STATUS_LED_BOOT, STATUS_LED_OFF);
+ status_led_set(STATUS_LED_BOOT, STATUS_LED_OFF);
#endif
- BootpCopyNetParams(bp); /* Store net parameters from reply */
+ store_net_params(bp); /* Store net parameters from reply */
/* Retrieve extended information (we must parse the vendor area) */
- if (NetReadLong((ulong*)&bp->bp_vend[0]) == htonl(BOOTP_VENDOR_MAGIC))
- BootpVendorProcess((uchar *)&bp->bp_vend[4], len);
+ if (net_read_u32((u32 *)&bp->bp_vend[0]) == htonl(BOOTP_VENDOR_MAGIC))
+ bootp_process_vendor((uchar *)&bp->bp_vend[4], len);
- NetSetTimeout(0, (thand_f *)0);
+ net_set_timeout_handler(0, (thand_f *)0);
+ bootstage_mark_name(BOOTSTAGE_ID_BOOTP_STOP, "bootp_stop");
debug("Got good BOOTP\n");
- auto_load();
+ net_auto_load();
}
#endif
/*
* Timeout on BOOTP/DHCP request.
*/
-static void
-BootpTimeout(void)
+static void bootp_timeout_handler(void)
{
- if (BootpTry >= TIMEOUT_COUNT) {
- puts ("\nRetry count exceeded; starting again\n");
- NetStartAgain ();
+ ulong time_taken = get_timer(bootp_start);
+
+ if (time_taken >= TIMEOUT_MS) {
+#ifdef CONFIG_BOOTP_MAY_FAIL
+ puts("\nRetry time exceeded\n");
+ net_set_state(NETLOOP_FAIL);
+#else
+ puts("\nRetry time exceeded; starting again\n");
+ net_start_again();
+#endif
} else {
- NetSetTimeout (TIMEOUT, BootpTimeout);
- BootpRequest ();
+ bootp_timeout *= 2;
+ if (bootp_timeout > 2000)
+ bootp_timeout = 2000;
+ net_set_timeout_handler(bootp_timeout, bootp_timeout_handler);
+ bootp_request();
}
}
+#define put_vci(e, str) \
+ do { \
+ size_t vci_strlen = strlen(str); \
+ *e++ = 60; /* Vendor Class Identifier */ \
+ *e++ = vci_strlen; \
+ memcpy(e, str, vci_strlen); \
+ e += vci_strlen; \
+ } while (0)
+
/*
* Initialize BOOTP extension fields in the request.
*/
#if defined(CONFIG_CMD_DHCP)
-static int DhcpExtended (u8 * e, int message_type, IPaddr_t ServerID, IPaddr_t RequestedIP)
+static int dhcp_extended(u8 *e, int message_type, struct in_addr server_ip,
+ struct in_addr requested_ip)
{
u8 *start = e;
u8 *cnt;
#if defined(CONFIG_BOOTP_PXE)
char *uuid;
- size_t vci_strlen;
u16 clientarch;
#endif
*e++ = 57; /* Maximum DHCP Message Size */
*e++ = 2;
- *e++ = (576 - 312 + OPT_SIZE) >> 8;
- *e++ = (576 - 312 + OPT_SIZE) & 0xff;
+ *e++ = (576 - 312 + OPT_FIELD_SIZE) >> 8;
+ *e++ = (576 - 312 + OPT_FIELD_SIZE) & 0xff;
- if (ServerID) {
- int tmp = ntohl (ServerID);
+ if (server_ip.s_addr) {
+ int tmp = ntohl(server_ip.s_addr);
*e++ = 54; /* ServerID */
*e++ = 4;
*e++ = tmp & 0xff;
}
- if (RequestedIP) {
- int tmp = ntohl (RequestedIP);
+ if (requested_ip.s_addr) {
+ int tmp = ntohl(requested_ip.s_addr);
*e++ = 50; /* Requested IP */
*e++ = 4;
*e++ = tmp & 0xff;
}
#if defined(CONFIG_BOOTP_SEND_HOSTNAME)
- if ((hostname = getenv ("hostname"))) {
- int hostnamelen = strlen (hostname);
+ hostname = getenv("hostname");
+ if (hostname) {
+ int hostnamelen = strlen(hostname);
*e++ = 12; /* Hostname */
*e++ = hostnamelen;
- memcpy (e, hostname, hostnamelen);
+ memcpy(e, hostname, hostnamelen);
e += hostnamelen;
}
#endif
*e++ = 17;
*e++ = 0; /* type 0 - UUID */
- uuid_str_to_bin(uuid, e);
+ uuid_str_to_bin(uuid, e, UUID_STR_FORMAT_STD);
e += 16;
} else {
printf("Invalid pxeuuid: %s\n", uuid);
}
}
+#endif
- *e++ = 60; /* Vendor Class Identifier */
- vci_strlen = strlen(CONFIG_BOOTP_VCI_STRING);
- *e++ = vci_strlen;
- memcpy(e, CONFIG_BOOTP_VCI_STRING, vci_strlen);
- e += vci_strlen;
+#ifdef CONFIG_BOOTP_VCI_STRING
+ put_vci(e, CONFIG_BOOTP_VCI_STRING);
#endif
#if defined(CONFIG_BOOTP_VENDOREX)
- if ((x = dhcp_vendorex_prep (e)))
+ x = dhcp_vendorex_prep(e);
+ if (x)
return x - start;
#endif
#else
/*
- * Warning: no field size check - change CONFIG_BOOTP_* at your own risk!
+ * Warning: no field size check - change CONFIG_BOOTP_* at your own risk!
*/
-static int BootpExtended (u8 * e)
+static int bootp_extended(u8 *e)
{
u8 *start = e;
*e++ = 57; /* Maximum DHCP Message Size */
*e++ = 2;
- *e++ = (576 - 312 + OPT_SIZE) >> 16;
- *e++ = (576 - 312 + OPT_SIZE) & 0xff;
+ *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)
}
#endif
-void
-BootpRequest (void)
+void bootp_reset(void)
+{
+ bootp_num_ids = 0;
+ bootp_try = 0;
+ bootp_start = get_timer(0);
+ bootp_timeout = 250;
+}
+
+void bootp_request(void)
{
- volatile uchar *pkt, *iphdr;
- Bootp_t *bp;
- int ext_len, pktlen, iplen;
+ uchar *pkt, *iphdr;
+ struct bootp_hdr *bp;
+ int extlen, pktlen, iplen;
+ int eth_hdr_size;
+#ifdef CONFIG_BOOTP_RANDOM_DELAY
+ ulong rand_ms;
+#endif
+ u32 bootp_id;
+ struct in_addr zero_ip;
+ struct in_addr bcast_ip;
+ bootstage_mark_name(BOOTSTAGE_ID_BOOTP_START, "bootp_start");
#if defined(CONFIG_CMD_DHCP)
dhcp_state = INIT;
#endif
#ifdef CONFIG_BOOTP_RANDOM_DELAY /* Random BOOTP delay */
- unsigned char bi_enetaddr[6];
- int reg;
- ulong tst1, tst2, sum, m_mask, m_value = 0;
-
- if (BootpTry ==0) {
- /* get our mac */
- eth_getenv_enetaddr("ethaddr", bi_enetaddr);
-
- debug("BootpRequest => Our Mac: ");
- for (reg=0; reg<6; reg++)
- debug("%x%c", bi_enetaddr[reg], reg==5 ? '\n' : ':');
-
- /* Mac-Manipulation 2 get seed1 */
- tst1=0;
- tst2=0;
- for (reg=2; reg<6; reg++) {
- tst1 = tst1 << 8;
- tst1 = tst1 | bi_enetaddr[reg];
- }
- for (reg=0; reg<2; reg++) {
- tst2 = tst2 | bi_enetaddr[reg];
- tst2 = tst2 << 8;
- }
-
- seed1 = tst1^tst2;
+ if (bootp_try == 0)
+ srand_mac();
- /* Mirror seed1*/
- m_mask=0x1;
- for (reg=1;reg<=32;reg++) {
- m_value |= (m_mask & seed1);
- seed1 = seed1 >> 1;
- m_value = m_value << 1;
- }
- seed1 = m_value;
- seed2 = 0xB78D0945;
- }
-
- /* Random Number Generator */
+ if (bootp_try <= 2) /* Start with max 1024 * 1ms */
+ rand_ms = rand() >> (22 - bootp_try);
+ else /* After 3rd BOOTP request max 8192 * 1ms */
+ rand_ms = rand() >> 19;
- for (reg=0;reg<=0;reg++) {
- sum = seed1 + seed2;
- if (sum < seed1 || sum < seed2)
- sum++;
- seed2 = seed1;
- seed1 = sum;
+ printf("Random delay: %ld ms...\n", rand_ms);
+ mdelay(rand_ms);
- if (BootpTry<=2) { /* Start with max 1024 * 1ms */
- sum = sum >> (22-BootpTry);
- } else { /*After 3rd BOOTP request max 8192 * 1ms */
- sum = sum >> 19;
- }
- }
-
- printf ("Random delay: %ld ms...\n", sum);
- for (reg=0; reg <sum; reg++) {
- udelay(1000); /*Wait 1ms*/
- }
#endif /* CONFIG_BOOTP_RANDOM_DELAY */
- printf("BOOTP broadcast %d\n", ++BootpTry);
- pkt = NetTxPacket;
- memset ((void*)pkt, 0, PKTSIZE);
+ printf("BOOTP broadcast %d\n", ++bootp_try);
+ pkt = net_tx_packet;
+ memset((void *)pkt, 0, PKTSIZE);
- pkt += NetSetEther(pkt, NetBcastAddr, PROT_IP);
+ eth_hdr_size = net_set_ether(pkt, net_bcast_ethaddr, PROT_IP);
+ pkt += eth_hdr_size;
/*
- * Next line results in incorrect packet size being transmitted, resulting
- * in errors in some DHCP servers, reporting missing bytes. Size must be
- * set in packet header after extension length has been determined.
+ * Next line results in incorrect packet size being transmitted,
+ * resulting in errors in some DHCP servers, reporting missing bytes.
+ * Size must be set in packet header after extension length has been
+ * determined.
* C. Hallinan, DS4.COM, Inc.
*/
- /* NetSetIP(pkt, 0xFFFFFFFFL, PORT_BOOTPS, PORT_BOOTPC, sizeof (Bootp_t)); */
- iphdr = pkt; /* We need this later for NetSetIP() */
- pkt += IP_HDR_SIZE;
+ /* net_set_udp_header(pkt, 0xFFFFFFFFL, PORT_BOOTPS, PORT_BOOTPC,
+ sizeof (struct bootp_hdr)); */
+ iphdr = pkt; /* We need this later for net_set_udp_header() */
+ pkt += IP_UDP_HDR_SIZE;
- bp = (Bootp_t *)pkt;
+ bp = (struct bootp_hdr *)pkt;
bp->bp_op = OP_BOOTREQUEST;
bp->bp_htype = HWT_ETHER;
bp->bp_hlen = HWL_ETHER;
bp->bp_hops = 0;
bp->bp_secs = htons(get_timer(0) / 1000);
- NetWriteIP(&bp->bp_ciaddr, 0);
- NetWriteIP(&bp->bp_yiaddr, 0);
- NetWriteIP(&bp->bp_siaddr, 0);
- NetWriteIP(&bp->bp_giaddr, 0);
- memcpy (bp->bp_chaddr, NetOurEther, 6);
- copy_filename (bp->bp_file, BootFile, sizeof(bp->bp_file));
+ zero_ip.s_addr = 0;
+ net_write_ip(&bp->bp_ciaddr, zero_ip);
+ net_write_ip(&bp->bp_yiaddr, zero_ip);
+ net_write_ip(&bp->bp_siaddr, zero_ip);
+ net_write_ip(&bp->bp_giaddr, zero_ip);
+ memcpy(bp->bp_chaddr, net_ethaddr, 6);
+ copy_filename(bp->bp_file, net_boot_file_name, sizeof(bp->bp_file));
/* Request additional information from the BOOTP/DHCP server */
#if defined(CONFIG_CMD_DHCP)
- ext_len = DhcpExtended((u8 *)bp->bp_vend, DHCP_DISCOVER, 0, 0);
+ extlen = dhcp_extended((u8 *)bp->bp_vend, DHCP_DISCOVER, zero_ip,
+ zero_ip);
#else
- ext_len = BootpExtended((u8 *)bp->bp_vend);
+ extlen = bootp_extended((u8 *)bp->bp_vend);
#endif
/*
* Bootp ID is the lower 4 bytes of our ethernet address
* plus the current time in ms.
*/
- BootpID = ((ulong)NetOurEther[2] << 24)
- | ((ulong)NetOurEther[3] << 16)
- | ((ulong)NetOurEther[4] << 8)
- | (ulong)NetOurEther[5];
- BootpID += get_timer(0);
- BootpID = htonl(BootpID);
- NetCopyLong(&bp->bp_id, &BootpID);
+#ifdef CONFIG_BOOTP_RANDOM_ID
+ bootp_id = rand();
+#else
+ bootp_id = ((u32)net_ethaddr[2] << 24)
+ | ((u32)net_ethaddr[3] << 16)
+ | ((u32)net_ethaddr[4] << 8)
+ | (u32)net_ethaddr[5];
+ bootp_id += get_timer(0);
+ bootp_id = htonl(bootp_id);
+#endif
+ bootp_add_id(bootp_id);
+ net_copy_u32(&bp->bp_id, &bootp_id);
/*
* Calculate proper packet lengths taking into account the
* variable size of the options field
*/
- pktlen = ((int)(pkt-NetTxPacket)) + BOOTP_HDR_SIZE - sizeof(bp->bp_vend) + ext_len;
- iplen = BOOTP_HDR_SIZE - sizeof(bp->bp_vend) + ext_len;
- NetSetIP(iphdr, 0xFFFFFFFFL, PORT_BOOTPS, PORT_BOOTPC, iplen);
- NetSetTimeout(SELECT_TIMEOUT, BootpTimeout);
+ iplen = BOOTP_HDR_SIZE - OPT_FIELD_SIZE + extlen;
+ pktlen = eth_hdr_size + IP_UDP_HDR_SIZE + iplen;
+ bcast_ip.s_addr = 0xFFFFFFFFL;
+ net_set_udp_header(iphdr, bcast_ip, PORT_BOOTPS, PORT_BOOTPC, iplen);
+ net_set_timeout_handler(bootp_timeout, bootp_timeout_handler);
#if defined(CONFIG_CMD_DHCP)
dhcp_state = SELECTING;
- NetSetHandler(DhcpHandler);
+ net_set_udp_handler(dhcp_handler);
#else
- NetSetHandler(BootpHandler);
+ net_set_udp_handler(bootp_handler);
#endif
- NetSendPacket(NetTxPacket, pktlen);
+ net_send_packet(net_tx_packet, pktlen);
}
#if defined(CONFIG_CMD_DHCP)
-static void DhcpOptionsProcess (uchar * popt, Bootp_t *bp)
+static void dhcp_process_options(uchar *popt, struct bootp_hdr *bp)
{
uchar *end = popt + BOOTP_HDR_SIZE;
int oplen, size;
oplen = *(popt + 1);
switch (*popt) {
case 1:
- NetCopyIP (&NetOurSubnetMask, (popt + 2));
+ net_copy_ip(&net_netmask, (popt + 2));
break;
#if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_TIMEOFFSET)
case 2: /* Time offset */
- to_ptr = &NetTimeOffset;
- NetCopyLong ((ulong *)to_ptr, (ulong *)(popt + 2));
- NetTimeOffset = ntohl (NetTimeOffset);
+ to_ptr = &net_ntp_time_offset;
+ net_copy_u32((u32 *)to_ptr, (u32 *)(popt + 2));
+ net_ntp_time_offset = ntohl(net_ntp_time_offset);
break;
#endif
case 3:
- NetCopyIP (&NetOurGatewayIP, (popt + 2));
+ net_copy_ip(&net_gateway, (popt + 2));
break;
case 6:
- NetCopyIP (&NetOurDNSIP, (popt + 2));
+ net_copy_ip(&net_dns_server, (popt + 2));
#if defined(CONFIG_BOOTP_DNS2)
- if (*(popt + 1) > 4) {
- NetCopyIP (&NetOurDNS2IP, (popt + 2 + 4));
- }
+ if (*(popt + 1) > 4)
+ net_copy_ip(&net_dns_server2, (popt + 2 + 4));
#endif
break;
case 12:
- size = truncate_sz ("Host Name", sizeof (NetOurHostName), oplen);
- memcpy (&NetOurHostName, popt + 2, size);
- NetOurHostName[size] = 0;
+ size = truncate_sz("Host Name",
+ sizeof(net_hostname), oplen);
+ memcpy(&net_hostname, popt + 2, size);
+ net_hostname[size] = 0;
break;
case 15: /* Ignore Domain Name Option */
break;
case 17:
- size = truncate_sz ("Root Path", sizeof (NetOurRootPath), oplen);
- memcpy (&NetOurRootPath, popt + 2, size);
- NetOurRootPath[size] = 0;
+ size = truncate_sz("Root Path",
+ sizeof(net_root_path), oplen);
+ memcpy(&net_root_path, popt + 2, size);
+ net_root_path[size] = 0;
+ break;
+ case 28: /* Ignore Broadcast Address Option */
break;
#if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_NTPSERVER)
case 42: /* NTP server IP */
- NetCopyIP (&NetNtpServerIP, (popt + 2));
+ net_copy_ip(&net_ntp_server, (popt + 2));
break;
#endif
case 51:
- NetCopyLong (&dhcp_leasetime, (ulong *) (popt + 2));
+ net_copy_u32(&dhcp_leasetime, (u32 *)(popt + 2));
break;
case 53: /* Ignore Message Type Option */
break;
case 54:
- NetCopyIP (&NetDHCPServerIP, (popt + 2));
+ net_copy_ip(&dhcp_server_ip, (popt + 2));
break;
case 58: /* Ignore Renewal Time Option */
break;
* pass the bootp packet pointer into here as the
* second arg
*/
- size = truncate_sz ("Opt Boot File",
+ size = truncate_sz("Opt Boot File",
sizeof(bp->bp_file),
oplen);
if (bp->bp_file[0] == '\0' && size > 0) {
* to me
*/
printf("*** WARNING: using vendor "
- "optional boot file\n");
+ "optional boot file\n");
memcpy(bp->bp_file, popt + 2, size);
bp->bp_file[size] = '\0';
}
break;
default:
#if defined(CONFIG_BOOTP_VENDOREX)
- if (dhcp_vendorex_proc (popt))
+ if (dhcp_vendorex_proc(popt))
break;
#endif
- printf ("*** Unhandled DHCP Option in OFFER/ACK: %d\n", *popt);
+ printf("*** Unhandled DHCP Option in OFFER/ACK:"
+ " %d\n", *popt);
break;
}
popt += oplen + 2; /* Process next option */
}
}
-static int DhcpMessageType(unsigned char *popt)
+static int dhcp_message_type(unsigned char *popt)
{
- if (NetReadLong((ulong*)popt) != htonl(BOOTP_VENDOR_MAGIC))
+ if (net_read_u32((u32 *)popt) != htonl(BOOTP_VENDOR_MAGIC))
return -1;
popt += 4;
- while ( *popt != 0xff ) {
- if ( *popt == 53 ) /* DHCP Message Type */
+ while (*popt != 0xff) {
+ if (*popt == 53) /* DHCP Message Type */
return *(popt + 2);
popt += *(popt + 1) + 2; /* Scan through all options */
}
return -1;
}
-static void DhcpSendRequestPkt(Bootp_t *bp_offer)
+static void dhcp_send_request_packet(struct bootp_hdr *bp_offer)
{
- volatile uchar *pkt, *iphdr;
- Bootp_t *bp;
+ uchar *pkt, *iphdr;
+ struct bootp_hdr *bp;
int pktlen, iplen, extlen;
- IPaddr_t OfferedIP;
+ int eth_hdr_size;
+ struct in_addr offered_ip;
+ struct in_addr zero_ip;
+ struct in_addr bcast_ip;
- debug("DhcpSendRequestPkt: Sending DHCPREQUEST\n");
- pkt = NetTxPacket;
- memset ((void*)pkt, 0, PKTSIZE);
+ debug("dhcp_send_request_packet: Sending DHCPREQUEST\n");
+ pkt = net_tx_packet;
+ memset((void *)pkt, 0, PKTSIZE);
- pkt += NetSetEther(pkt, NetBcastAddr, PROT_IP);
+ eth_hdr_size = net_set_ether(pkt, net_bcast_ethaddr, PROT_IP);
+ pkt += eth_hdr_size;
- iphdr = pkt; /* We'll need this later to set proper pkt size */
- pkt += IP_HDR_SIZE;
+ iphdr = pkt; /* We'll need this later to set proper pkt size */
+ pkt += IP_UDP_HDR_SIZE;
- bp = (Bootp_t *)pkt;
+ bp = (struct bootp_hdr *)pkt;
bp->bp_op = OP_BOOTREQUEST;
bp->bp_htype = HWT_ETHER;
bp->bp_hlen = HWL_ETHER;
bp->bp_hops = 0;
bp->bp_secs = htons(get_timer(0) / 1000);
- /* Do not set the client IP, your IP, or server IP yet, since it hasn't been ACK'ed by
- * the server yet */
+ /* Do not set the client IP, your IP, or server IP yet, since it
+ * hasn't been ACK'ed by the server yet */
/*
* RFC3046 requires Relay Agents to discard packets with
* nonzero and offered giaddr
*/
- NetWriteIP(&bp->bp_giaddr, 0);
+ zero_ip.s_addr = 0;
+ net_write_ip(&bp->bp_giaddr, zero_ip);
- memcpy (bp->bp_chaddr, NetOurEther, 6);
+ memcpy(bp->bp_chaddr, net_ethaddr, 6);
/*
* ID is the id of the OFFER packet
*/
- NetCopyLong(&bp->bp_id, &bp_offer->bp_id);
+ net_copy_u32(&bp->bp_id, &bp_offer->bp_id);
/*
* Copy options from OFFER packet if present
*/
/* Copy offered IP into the parameters request list */
- NetCopyIP(&OfferedIP, &bp_offer->bp_yiaddr);
- extlen = DhcpExtended((u8 *)bp->bp_vend, DHCP_REQUEST, NetDHCPServerIP, OfferedIP);
+ net_copy_ip(&offered_ip, &bp_offer->bp_yiaddr);
+ extlen = dhcp_extended((u8 *)bp->bp_vend, DHCP_REQUEST,
+ dhcp_server_ip, offered_ip);
- pktlen = ((int)(pkt-NetTxPacket)) + BOOTP_HDR_SIZE - sizeof(bp->bp_vend) + extlen;
- iplen = BOOTP_HDR_SIZE - sizeof(bp->bp_vend) + extlen;
- NetSetIP(iphdr, 0xFFFFFFFFL, PORT_BOOTPS, PORT_BOOTPC, iplen);
+ iplen = BOOTP_HDR_SIZE - OPT_FIELD_SIZE + extlen;
+ pktlen = eth_hdr_size + IP_UDP_HDR_SIZE + iplen;
+ bcast_ip.s_addr = 0xFFFFFFFFL;
+ net_set_udp_header(iphdr, bcast_ip, PORT_BOOTPS, PORT_BOOTPC, iplen);
- debug("Transmitting DHCPREQUEST packet: len = %d\n", pktlen);
#ifdef CONFIG_BOOTP_DHCP_REQUEST_DELAY
udelay(CONFIG_BOOTP_DHCP_REQUEST_DELAY);
#endif /* CONFIG_BOOTP_DHCP_REQUEST_DELAY */
- NetSendPacket(NetTxPacket, pktlen);
+ debug("Transmitting DHCPREQUEST packet: len = %d\n", pktlen);
+ net_send_packet(net_tx_packet, pktlen);
}
/*
* Handle DHCP received packets.
*/
-static void
-DhcpHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src,
- unsigned len)
+static void dhcp_handler(uchar *pkt, unsigned dest, struct in_addr sip,
+ unsigned src, unsigned len)
{
- Bootp_t *bp = (Bootp_t *)pkt;
+ struct bootp_hdr *bp = (struct bootp_hdr *)pkt;
debug("DHCPHandler: got packet: (src=%d, dst=%d, len=%d) state: %d\n",
- src, dest, len, dhcp_state);
+ src, dest, len, dhcp_state);
- if (BootpCheckPkt(pkt, dest, src, len)) /* Filter out pkts we don't want */
+ /* Filter out pkts we don't want */
+ if (check_packet(pkt, dest, src, len))
return;
- debug("DHCPHandler: got DHCP packet: (src=%d, dst=%d, len=%d) state: %d\n",
- src, dest, len, dhcp_state);
+ debug("DHCPHandler: got DHCP packet: (src=%d, dst=%d, len=%d) state: "
+ "%d\n", src, dest, len, dhcp_state);
switch (dhcp_state) {
case SELECTING:
/*
* Wait an appropriate time for any potential DHCPOFFER packets
- * to arrive. Then select one, and generate DHCPREQUEST response.
- * If filename is in format we recognize, assume it is a valid
- * OFFER from a server we want.
+ * to arrive. Then select one, and generate DHCPREQUEST
+ * response. If filename is in format we recognize, assume it
+ * is a valid OFFER from a server we want.
*/
debug("DHCP: state=SELECTING bp_file: \"%s\"\n", bp->bp_file);
#ifdef CONFIG_SYS_BOOTFILE_PREFIX
if (strncmp(bp->bp_file,
CONFIG_SYS_BOOTFILE_PREFIX,
- strlen(CONFIG_SYS_BOOTFILE_PREFIX)) == 0 ) {
+ strlen(CONFIG_SYS_BOOTFILE_PREFIX)) == 0) {
#endif /* CONFIG_SYS_BOOTFILE_PREFIX */
debug("TRANSITIONING TO REQUESTING STATE\n");
dhcp_state = REQUESTING;
- if (NetReadLong((ulong*)&bp->bp_vend[0]) == htonl(BOOTP_VENDOR_MAGIC))
- DhcpOptionsProcess((u8 *)&bp->bp_vend[4], bp);
+ if (net_read_u32((u32 *)&bp->bp_vend[0]) ==
+ htonl(BOOTP_VENDOR_MAGIC))
+ dhcp_process_options((u8 *)&bp->bp_vend[4], bp);
- NetSetTimeout(TIMEOUT, BootpTimeout);
- DhcpSendRequestPkt(bp);
+ net_set_timeout_handler(5000, bootp_timeout_handler);
+ dhcp_send_request_packet(bp);
#ifdef CONFIG_SYS_BOOTFILE_PREFIX
}
#endif /* CONFIG_SYS_BOOTFILE_PREFIX */
case REQUESTING:
debug("DHCP State: REQUESTING\n");
- if ( DhcpMessageType((u8 *)bp->bp_vend) == DHCP_ACK ) {
- if (NetReadLong((ulong*)&bp->bp_vend[0]) == htonl(BOOTP_VENDOR_MAGIC))
- DhcpOptionsProcess((u8 *)&bp->bp_vend[4], bp);
- BootpCopyNetParams(bp); /* Store net params from reply */
+ if (dhcp_message_type((u8 *)bp->bp_vend) == DHCP_ACK) {
+ if (net_read_u32((u32 *)&bp->bp_vend[0]) ==
+ htonl(BOOTP_VENDOR_MAGIC))
+ dhcp_process_options((u8 *)&bp->bp_vend[4], bp);
+ /* Store net params from reply */
+ store_net_params(bp);
dhcp_state = BOUND;
- printf ("DHCP client bound to address %pI4\n", &NetOurIP);
+ printf("DHCP client bound to address %pI4 (%lu ms)\n",
+ &net_ip, get_timer(bootp_start));
+ bootstage_mark_name(BOOTSTAGE_ID_BOOTP_STOP,
+ "bootp_stop");
- auto_load();
+ net_auto_load();
return;
}
break;
/* DHCP client bound to address */
break;
default:
- puts ("DHCP: INVALID STATE\n");
+ puts("DHCP: INVALID STATE\n");
break;
}
-
}
-void DhcpRequest(void)
+void dhcp_request(void)
{
- BootpRequest();
+ bootp_request();
}
#endif /* CONFIG_CMD_DHCP */