#ifdef CONFIG_STATUS_LED
#include <status_led.h>
#endif
-#include <linux/compiler.h>
+#ifdef CONFIG_BOOTP_RANDOM_DELAY
+#include "net_rand.h"
+#endif
#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 */
#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 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
+ulong bootp_ids[CONFIG_BOOTP_ID_CACHE_SIZE];
+unsigned int bootp_num_ids;
+int BootpTry;
+ulong bootp_start;
+ulong bootp_timeout;
+
#if defined(CONFIG_CMD_DHCP)
-dhcp_state_t dhcp_state = INIT;
-unsigned long dhcp_leasetime;
-IPaddr_t NetDHCPServerIP;
+static dhcp_state_t dhcp_state = INIT;
+static unsigned long dhcp_leasetime;
+static IPaddr_t NetDHCPServerIP;
static void DhcpHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src,
unsigned len);
#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);
+
+ 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 BootpCheckPkt(uchar *pkt, unsigned dest, unsigned src, unsigned len)
{
struct Bootp_t *bp = (struct Bootp_t *) pkt;
if (dest != PORT_BOOTPC || src != PORT_BOOTPS)
retval = -1;
- else if (len < sizeof(struct Bootp_t) - OPT_SIZE)
+ else if (len < sizeof(struct Bootp_t) - OPT_FIELD_SIZE)
retval = -2;
else if (bp->bp_op != OP_BOOTREQUEST &&
bp->bp_op != OP_BOOTREPLY &&
retval = -4;
else if (bp->bp_hlen != HWL_ETHER)
retval = -5;
- else if (NetReadLong((ulong *)&bp->bp_id) != BootpID)
+ else if (!bootp_match_id(NetReadLong((ulong *)&bp->bp_id)))
retval = -6;
debug("Filtering pkt = %d\n", retval);
*/
static void BootpCopyNetParams(struct Bootp_t *bp)
{
- __maybe_unused IPaddr_t tmp_ip;
-
- NetCopyIP(&NetOurIP, &bp->bp_yiaddr);
#if !defined(CONFIG_BOOTP_SERVERIP)
+ IPaddr_t tmp_ip;
+
NetCopyIP(&tmp_ip, &bp->bp_siaddr);
if (tmp_ip != 0)
NetCopyIP(&NetServerIP, &bp->bp_siaddr);
- memcpy(NetServerEther, ((Ethernet_t *)NetRxPacket)->et_src, 6);
+ memcpy(NetServerEther, ((struct ethernet_hdr *)NetRxPacket)->et_src, 6);
#endif
+ NetCopyIP(&NetOurIP, &bp->bp_yiaddr);
if (strlen(bp->bp_file) > 0)
copy_filename(BootFile, bp->bp_file, sizeof(BootFile));
static void
BootpTimeout(void)
{
- if (BootpTry >= TIMEOUT_COUNT) {
- puts("\nRetry count exceeded; starting again\n");
+ 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");
NetStartAgain();
+#endif
} else {
- NetSetTimeout(TIMEOUT, BootpTimeout);
+ bootp_timeout *= 2;
+ if (bootp_timeout > 2000)
+ bootp_timeout = 2000;
+ NetSetTimeout(bootp_timeout, BootpTimeout);
BootpRequest();
}
}
+#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.
*/
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);
*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)
*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 BootpReset(void)
+{
+ bootp_num_ids = 0;
+ BootpTry = 0;
+ bootp_start = get_timer(0);
+ bootp_timeout = 250;
+}
+
void
BootpRequest(void)
{
uchar *pkt, *iphdr;
struct Bootp_t *bp;
- int ext_len, pktlen, iplen;
+ int extlen, pktlen, iplen;
+ int eth_hdr_size;
+#ifdef CONFIG_BOOTP_RANDOM_DELAY
+ ulong rand_ms;
+#endif
+ ulong BootpID;
bootstage_mark_name(BOOTSTAGE_ID_BOOTP_START, "bootp_start");
#if defined(CONFIG_CMD_DHCP)
#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;
-
- /* 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;
- }
+ if (BootpTry == 0)
+ srand_mac();
- /* Random Number Generator */
- for (reg = 0; reg <= 0; reg++) {
- sum = seed1 + seed2;
- if (sum < seed1 || sum < seed2)
- sum++;
- seed2 = seed1;
- seed1 = sum;
-
- if (BootpTry <= 2) { /* Start with max 1024 * 1ms */
- sum = sum >> (22-BootpTry);
- } else { /*After 3rd BOOTP request max 8192 * 1ms */
- sum = sum >> 19;
- }
- }
+ if (BootpTry <= 2) /* Start with max 1024 * 1ms */
+ rand_ms = rand() >> (22 - BootpTry);
+ else /* After 3rd BOOTP request max 8192 * 1ms */
+ rand_ms = rand() >> 19;
- printf("Random delay: %ld ms...\n", sum);
- for (reg = 0; reg < sum; reg++)
- udelay(1000); /*Wait 1ms*/
+ printf("Random delay: %ld ms...\n", rand_ms);
+ mdelay(rand_ms);
#endif /* CONFIG_BOOTP_RANDOM_DELAY */
pkt = NetTxPacket;
memset((void *)pkt, 0, PKTSIZE);
- pkt += NetSetEther(pkt, NetBcastAddr, PROT_IP);
+ eth_hdr_size = NetSetEther(pkt, NetBcastAddr, PROT_IP);
+ pkt += eth_hdr_size;
/*
* Next line results in incorrect packet size being transmitted,
* determined.
* C. Hallinan, DS4.COM, Inc.
*/
- /* NetSetIP(pkt, 0xFFFFFFFFL, PORT_BOOTPS, PORT_BOOTPC,
+ /* net_set_udp_header(pkt, 0xFFFFFFFFL, PORT_BOOTPS, PORT_BOOTPC,
sizeof (struct Bootp_t)); */
- iphdr = pkt; /* We need this later for NetSetIP() */
- pkt += IP_HDR_SIZE;
+ iphdr = pkt; /* We need this later for net_set_udp_header() */
+ pkt += IP_UDP_HDR_SIZE;
bp = (struct Bootp_t *)pkt;
bp->bp_op = OP_BOOTREQUEST;
/* 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 = DhcpExtended((u8 *)bp->bp_vend, DHCP_DISCOVER, 0, 0);
#else
- ext_len = BootpExtended((u8 *)bp->bp_vend);
+ extlen = BootpExtended((u8 *)bp->bp_vend);
#endif
/*
| ((ulong)NetOurEther[4] << 8)
| (ulong)NetOurEther[5];
BootpID += get_timer(0);
- BootpID = htonl(BootpID);
+ BootpID = htonl(BootpID);
+ bootp_add_id(BootpID);
NetCopyLong(&bp->bp_id, &BootpID);
/*
* 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;
+ net_set_udp_header(iphdr, 0xFFFFFFFFL, PORT_BOOTPS, PORT_BOOTPC, iplen);
+ NetSetTimeout(bootp_timeout, BootpTimeout);
#if defined(CONFIG_CMD_DHCP)
dhcp_state = SELECTING;
- NetSetHandler(DhcpHandler);
+ net_set_udp_handler(DhcpHandler);
#else
- NetSetHandler(BootpHandler);
+ net_set_udp_handler(BootpHandler);
#endif
NetSendPacket(NetTxPacket, pktlen);
}
memcpy(&NetOurRootPath, popt + 2, size);
NetOurRootPath[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));
uchar *pkt, *iphdr;
struct Bootp_t *bp;
int pktlen, iplen, extlen;
+ int eth_hdr_size;
IPaddr_t OfferedIP;
debug("DhcpSendRequestPkt: Sending DHCPREQUEST\n");
pkt = NetTxPacket;
memset((void *)pkt, 0, PKTSIZE);
- pkt += NetSetEther(pkt, NetBcastAddr, PROT_IP);
+ eth_hdr_size = NetSetEther(pkt, NetBcastAddr, PROT_IP);
+ pkt += eth_hdr_size;
iphdr = pkt; /* We'll need this later to set proper pkt size */
- pkt += IP_HDR_SIZE;
+ pkt += IP_UDP_HDR_SIZE;
bp = (struct Bootp_t *)pkt;
bp->bp_op = OP_BOOTREQUEST;
extlen = DhcpExtended((u8 *)bp->bp_vend, DHCP_REQUEST,
NetDHCPServerIP, OfferedIP);
- 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;
+ net_set_udp_header(iphdr, 0xFFFFFFFFL, 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 */
+ debug("Transmitting DHCPREQUEST packet: len = %d\n", pktlen);
NetSendPacket(NetTxPacket, pktlen);
}
htonl(BOOTP_VENDOR_MAGIC))
DhcpOptionsProcess((u8 *)&bp->bp_vend[4], bp);
- NetSetTimeout(TIMEOUT, BootpTimeout);
+ NetSetTimeout(5000, BootpTimeout);
DhcpSendRequestPkt(bp);
#ifdef CONFIG_SYS_BOOTFILE_PREFIX
}
/* Store net params from reply */
BootpCopyNetParams(bp);
dhcp_state = BOUND;
- printf("DHCP client bound to address %pI4\n",
- &NetOurIP);
+ printf("DHCP client bound to address %pI4 (%lu ms)\n",
+ &NetOurIP, get_timer(bootp_start));
bootstage_mark_name(BOOTSTAGE_ID_BOOTP_STOP,
"bootp_stop");
projects / karo-tx-uboot.git / blobdiff