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* Update TRAB auto update code

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* Make fatload set filesize environment variable
  fix potential buffer overlow problem

* enable basic / medium / high-end configurations for PPChameleonEVB
  board; fix NAND code

* enable TFTP client code to specify to the server the desired
  timeout value (see RFC-2349)
This commit is contained in:
wdenk
2003-10-06 21:55:32 +00:00
parent bb65a31267
commit fbe4b5cbde
9 changed files with 116 additions and 39 deletions
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27
net/tftp.c
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@@ -15,7 +15,7 @@
#if (CONFIG_COMMANDS & CFG_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
@@ -32,6 +32,7 @@
#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 */
@@ -44,6 +45,7 @@ static int TftpState;
#define STATE_DATA 2
#define STATE_TOO_LARGE 3
#define STATE_BAD_MAGIC 4
#define STATE_OACK 5
#define DEFAULT_NAME_LEN (8 + 4 + 1)
static char default_filename[DEFAULT_NAME_LEN];
@@ -113,10 +115,18 @@ TftpSend (void)
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);
@@ -173,6 +183,14 @@ TftpHandler (uchar * pkt, unsigned dest, unsigned src, unsigned len)
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;
@@ -184,7 +202,13 @@ TftpHandler (uchar * pkt, unsigned dest, unsigned src, unsigned len)
puts ("\n\t ");
}
#ifdef ET_DEBUG
if (TftpState == STATE_RRQ) {
printf("Server did not acknowledge timeout option!\n");
}
#endif
if (TftpState == STATE_RRQ || TftpState == STATE_OACK) {
TftpState = STATE_DATA;
TftpServerPort = src;
TftpLastBlock = 0;
@@ -305,6 +329,7 @@ TftpStart (void)
TftpTimeoutCount = 0;
TftpState = STATE_RRQ;
TftpOurPort = 1024 + (get_timer(0) % 3072);
TftpBlock = 0;
/* zero out server ether in case the server ip has changed */
memset(NetServerEther, 0, 6);