#undef ET_DEBUG
-#if (CONFIG_COMMANDS & CFG_CMD_NET)
+#if defined(CONFIG_CMD_NET)
#define WELL_KNOWN_PORT 69 /* Well known TFTP port # */
-#define TIMEOUT 2 /* Seconds to timeout for a lost pkt */
+#define TIMEOUT 5 /* Seconds to timeout for a lost pkt */
#ifndef CONFIG_NET_RETRY_COUNT
# define TIMEOUT_COUNT 10 /* # of timeouts before giving up */
#else
#define TFTP_DATA 3
#define TFTP_ACK 4
#define TFTP_ERROR 5
+#define TFTP_OACK 6
static int TftpServerPort; /* The UDP port at their end */
static int TftpOurPort; /* The UDP port at our end */
static int TftpTimeoutCount;
-static unsigned TftpBlock;
-static unsigned TftpLastBlock;
+static ulong TftpBlock; /* packet sequence number */
+static ulong TftpLastBlock; /* last packet sequence number received */
+static ulong TftpBlockWrap; /* count of sequence number wraparounds */
+static ulong TftpBlockWrapOffset; /* memory offset due to wrapping */
static int TftpState;
+
#define STATE_RRQ 1
#define STATE_DATA 2
#define STATE_TOO_LARGE 3
#define STATE_BAD_MAGIC 4
+#define STATE_OACK 5
+
+#define TFTP_BLOCK_SIZE 512 /* default TFTP block size */
+#define TFTP_SEQUENCE_SIZE ((ulong)(1<<16)) /* sequence number is 16 bit */
#define DEFAULT_NAME_LEN (8 + 4 + 1)
static char default_filename[DEFAULT_NAME_LEN];
static char *tftp_filename;
#ifdef CFG_DIRECT_FLASH_TFTP
-extern flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
+extern flash_info_t flash_info[];
#endif
static __inline__ void
store_block (unsigned block, uchar * src, unsigned len)
{
- ulong offset = block * 512, newsize = offset + len;
+ ulong offset = block * TFTP_BLOCK_SIZE + TftpBlockWrapOffset;
+ ulong newsize = offset + len;
#ifdef CFG_DIRECT_FLASH_TFTP
int i, rc = 0;
}
if (rc) { /* Flash is destination for this packet */
- rc = flash_write ((uchar *)src, (ulong)(load_addr+offset), len);
+ rc = flash_write ((char *)src, (ulong)(load_addr+offset), len);
if (rc) {
flash_perror (rc);
NetState = NETLOOP_FAIL;
volatile uchar * pkt;
volatile uchar * xp;
int len = 0;
+ volatile ushort *s;
/*
* We will always be sending some sort of packet, so
* cobble together the packet headers now.
*/
- pkt = NetTxPacket + ETHER_HDR_SIZE + IP_HDR_SIZE;
+ pkt = NetTxPacket + NetEthHdrSize() + IP_HDR_SIZE;
switch (TftpState) {
case STATE_RRQ:
xp = pkt;
- *((ushort *)pkt)++ = htons(TFTP_RRQ);
+ s = (ushort *)pkt;
+ *s++ = htons(TFTP_RRQ);
+ pkt = (uchar *)s;
strcpy ((char *)pkt, tftp_filename);
pkt += strlen(tftp_filename) + 1;
strcpy ((char *)pkt, "octet");
pkt += 5 /*strlen("octet")*/ + 1;
+ strcpy ((char *)pkt, "timeout");
+ pkt += 7 /*strlen("timeout")*/ + 1;
+ sprintf((char *)pkt, "%d", TIMEOUT);
+#ifdef ET_DEBUG
+ printf("send option \"timeout %s\"\n", (char *)pkt);
+#endif
+ pkt += strlen((char *)pkt) + 1;
len = pkt - xp;
break;
case STATE_DATA:
+ case STATE_OACK:
xp = pkt;
- *((ushort *)pkt)++ = htons(TFTP_ACK);
- *((ushort *)pkt)++ = htons(TftpBlock);
+ s = (ushort *)pkt;
+ *s++ = htons(TFTP_ACK);
+ *s++ = htons(TftpBlock);
+ pkt = (uchar *)s;
len = pkt - xp;
break;
case STATE_TOO_LARGE:
xp = pkt;
- *((ushort *)pkt)++ = htons(TFTP_ERROR);
- *((ushort *)pkt)++ = htons(3);
+ s = (ushort *)pkt;
+ *s++ = htons(TFTP_ERROR);
+ *s++ = htons(3);
+ pkt = (uchar *)s;
strcpy ((char *)pkt, "File too large");
pkt += 14 /*strlen("File too large")*/ + 1;
len = pkt - xp;
case STATE_BAD_MAGIC:
xp = pkt;
- *((ushort *)pkt)++ = htons(TFTP_ERROR);
- *((ushort *)pkt)++ = htons(2);
+ s = (ushort *)pkt;
+ *s++ = htons(TFTP_ERROR);
+ *s++ = htons(2);
+ pkt = (uchar *)s;
strcpy ((char *)pkt, "File has bad magic");
pkt += 18 /*strlen("File has bad magic")*/ + 1;
len = pkt - xp;
TftpHandler (uchar * pkt, unsigned dest, unsigned src, unsigned len)
{
ushort proto;
+ ushort *s;
if (dest != TftpOurPort) {
return;
}
len -= 2;
/* warning: don't use increment (++) in ntohs() macros!! */
- proto = *((ushort *)pkt)++;
+ s = (ushort *)pkt;
+ proto = *s++;
+ pkt = (uchar *)s;
switch (ntohs(proto)) {
case TFTP_RRQ:
default:
break;
+ case TFTP_OACK:
+#ifdef ET_DEBUG
+ printf("Got OACK: %s %s\n", pkt, pkt+strlen(pkt)+1);
+#endif
+ TftpState = STATE_OACK;
+ TftpServerPort = src;
+ TftpSend (); /* Send ACK */
+ break;
case TFTP_DATA:
if (len < 2)
return;
len -= 2;
TftpBlock = ntohs(*(ushort *)pkt);
- if (((TftpBlock - 1) % 10) == 0) {
- putc ('#');
- } else if ((TftpBlock % (10 * HASHES_PER_LINE)) == 0) {
- puts ("\n\t ");
+
+ /*
+ * RFC1350 specifies that the first data packet will
+ * have sequence number 1. If we receive a sequence
+ * number of 0 this means that there was a wrap
+ * around of the (16 bit) counter.
+ */
+ if (TftpBlock == 0) {
+ TftpBlockWrap++;
+ TftpBlockWrapOffset += TFTP_BLOCK_SIZE * TFTP_SEQUENCE_SIZE;
+ printf ("\n\t %lu MB received\n\t ", TftpBlockWrapOffset>>20);
+ } else {
+ if (((TftpBlock - 1) % 10) == 0) {
+ putc ('#');
+ } else if ((TftpBlock % (10 * HASHES_PER_LINE)) == 0) {
+ puts ("\n\t ");
+ }
}
+#ifdef ET_DEBUG
if (TftpState == STATE_RRQ) {
+ puts ("Server did not acknowledge timeout option!\n");
+ }
+#endif
+
+ if (TftpState == STATE_RRQ || TftpState == STATE_OACK) {
+ /* first block received */
TftpState = STATE_DATA;
TftpServerPort = src;
TftpLastBlock = 0;
+ TftpBlockWrap = 0;
+ TftpBlockWrapOffset = 0;
if (TftpBlock != 1) { /* Assertion */
printf ("\nTFTP error: "
- "First block is not block 1 (%d)\n"
+ "First block is not block 1 (%ld)\n"
"Starting again\n\n",
TftpBlock);
NetStartAgain ();
*/
TftpSend ();
- if (len < 512) {
+ if (len < TFTP_BLOCK_SIZE) {
/*
* We received the whole thing. Try to
* run it.
void
TftpStart (void)
{
- if (BootFile[0] == '\0') {
- IPaddr_t OurIP = ntohl(NetOurIP);
+#ifdef CONFIG_TFTP_PORT
+ char *ep; /* Environment pointer */
+#endif
+ if (BootFile[0] == '\0') {
sprintf(default_filename, "%02lX%02lX%02lX%02lX.img",
- OurIP & 0xFF,
- (OurIP >> 8) & 0xFF,
- (OurIP >> 16) & 0xFF,
- (OurIP >> 24) & 0xFF );
+ NetOurIP & 0xFF,
+ (NetOurIP >> 8) & 0xFF,
+ (NetOurIP >> 16) & 0xFF,
+ (NetOurIP >> 24) & 0xFF );
tftp_filename = default_filename;
printf ("*** Warning: no boot file name; using '%s'\n",
tftp_filename = BootFile;
}
+#if defined(CONFIG_NET_MULTI)
+ printf ("Using %s device\n", eth_get_name());
+#endif
puts ("TFTP from server "); print_IPaddr (NetServerIP);
puts ("; our IP address is "); print_IPaddr (NetOurIP);
TftpServerPort = WELL_KNOWN_PORT;
TftpTimeoutCount = 0;
TftpState = STATE_RRQ;
+ /* Use a pseudo-random port unless a specific port is set */
TftpOurPort = 1024 + (get_timer(0) % 3072);
+#ifdef CONFIG_TFTP_PORT
+ if ((ep = getenv("tftpdstp")) != NULL) {
+ TftpServerPort = simple_strtol(ep, NULL, 10);
+ }
+ if ((ep = getenv("tftpsrcp")) != NULL) {
+ TftpOurPort= simple_strtol(ep, NULL, 10);
+ }
+#endif
+ TftpBlock = 0;
/* zero out server ether in case the server ip has changed */
memset(NetServerEther, 0, 6);
projects / u-boot / blobdiff