uboot下的tftp下载功能是非常重要和常见的功能。但是偶尔有些特殊需求的人需要使用uboot的tftp具有上传功能。
默认的uboot没有tftp上传功能,如果需要修改uboot代码。
使用时键入第4个参数,则不同于3个参数的tftp下载功能。
#tftp 50400000 xx.bin 10000
TFTP to server 192.168.0.30; our IP address is 192.168.0.152
Upload Filename 'xx.bin'.
Upload from address: 0x50400000, 0.064 MB to be send ...
Uploading: %# [ Connected ]
0.064 MB upload ok.
这条命令将板子上0x50400000 开始,长度0x10000的数据上传到远程tftp服务器,命名为xx.bin
这个修改在uboot1.3.4和2008.10版本上测试通过。
1、修改common/cmd_net.c
注释掉
- /*
-
int do_tftpb (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
-
{
-
return netboot_common (TFTP, cmdtp, argc, argv);
-
}
-
-
U_BOOT_CMD(
-
tftpboot, 3, 1, do_tftpb,
-
"tftpboot- boot image via network using TFTP protocol\n",
-
"[loadAddress] [[hostIPaddr:]bootfilename]\n"
-
);
-
*/
可以看出默认uboot执行tftp命令其实调用的是tftpboot,uboot果然是看命名的前面几个字母而不是全名。例如print命令只需要键入pri。
接着添加
- int do_tftp (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
-
{
-
return netboot_common (TFTP, cmdtp, argc, argv);
-
}
-
-
U_BOOT_CMD(
-
tftp, 4, 1, do_tftp,
-
"tftp\t- download or upload image via network using TFTP protocol\n",
-
"[loadAddress] [bootfilename] \n"
-
);
然后修改netboot_common成如下代码
- static int
-
netboot_common (proto_t proto, cmd_tbl_t *cmdtp, int argc, char *argv[])
-
{
-
extern ulong upload_addr;
-
extern ulong upload_size;
-
-
char *s;
-
int rcode = 0;
-
int size;
-
-
/* pre-set load_addr */
-
if ((s = getenv("loadaddr")) != NULL) {
-
load_addr = simple_strtoul(s, NULL, 16);
-
}
-
-
switch (argc) {
-
case 1:
-
break;
-
-
case 2: /* only one arg - accept two forms:
-
* just load address, or just boot file name.
-
* The latter form must be written "filename" here.
-
*/
-
if (argv[1][0] == '"') { /* just boot filename */
-
copy_filename (BootFile, argv[1], sizeof(BootFile));
-
} else { /* load address */
-
load_addr = simple_strtoul(argv[1], NULL, 16);
-
}
-
break;
-
-
case 3: load_addr = simple_strtoul(argv[1], NULL, 16);
-
copy_filename (BootFile, argv[2], sizeof(BootFile));
-
upload_size = 0;
-
-
break;
-
-
case 4:
-
upload_addr = simple_strtoul(argv[1], NULL, 16);
-
upload_size = simple_strtoul(argv[3], NULL, 16);
-
copy_filename (BootFile, argv[2], sizeof(BootFile));
-
-
break;
-
-
default: printf ("Usage:\n%s\n", cmdtp->usage);
-
show_boot_progress (-80);
-
return 1;
-
}
-
-
show_boot_progress (80);
-
if ((size = NetLoop(proto)) < 0) {
-
show_boot_progress (-81);
-
return 1;
-
}
-
-
show_boot_progress (81);
-
/* NetLoop ok, update environment */
-
netboot_update_env();
-
-
/* done if no file was loaded (no errors though) */
-
if (size == 0) {
-
show_boot_progress (-82);
-
return 0;
-
}
-
-
/* flush cache */
-
flush_cache(load_addr, size);
-
-
/* Loading ok, check if we should attempt an auto-start */
-
if (((s = getenv("autostart")) != NULL) && (strcmp(s,"yes") == 0)) {
-
char *local_args[2];
-
local_args[0] = argv[0];
-
local_args[1] = NULL;
-
-
printf ("Automatic boot of image at addr 0x%08lX ...\n",
-
load_addr);
-
show_boot_progress (82);
-
rcode = do_bootm (cmdtp, 0, 1, local_args);
-
}
-
-
#ifdef CONFIG_AUTOSCRIPT
-
if (((s = getenv("autoscript")) != NULL) && (strcmp(s,"yes") == 0)) {
-
printf ("Running autoscript at addr 0x%08lX", load_addr);
-
-
s = getenv ("autoscript_uname");
-
if (s)
-
printf (":%s ...\n", s);
-
else
-
puts (" ...\n");
-
-
show_boot_progress (83);
-
rcode = autoscript (load_addr, s);
-
}
-
#endif
-
if (rcode < 0)
-
show_boot_progress (-83);
-
else
-
show_boot_progress (84);
-
return rcode;
-
}
2、修改net/tftp.c 为
- /*
-
* Copyright 1994, 1995, 2000 Neil Russell.
-
* (See License)
-
* Copyright 2000, 2001 DENX Software Engineering, Wolfgang Denk, wd@denx.de
-
*/
-
-
#include
-
#include
-
#include
-
#include "tftp.h"
-
#include "bootp.h"
-
-
#undef ET_DEBUG
-
-
#if defined(CONFIG_CMD_NET)
-
-
#define WELL_KNOWN_PORT 69 /* Well known TFTP port # */
-
#define TIMEOUT 1 /* Seconds to timeout for a lost pkt */
-
#ifndef CONFIG_NET_RETRY_COUNT
-
# define TIMEOUT_COUNT 10 /* # of timeouts before giving up */
-
#else
-
# define TIMEOUT_COUNT (CONFIG_NET_RETRY_COUNT * 2)
-
#endif
-
/* (for checking the image size) */
-
#define TBLKS_PER_HASHES 64
-
#define HASHES_PER_LINE 32 /* Number of "loading" hashes per line */
-
-
/*
-
* TFTP operations.
-
*/
-
#define TFTP_RRQ 1
-
#define TFTP_WRQ 2
-
#define TFTP_DATA 3
-
#define TFTP_ACK 4
-
#define TFTP_ERROR 5
-
#define TFTP_OACK 6
-
-
#define STATE_OK 0
-
#define STATE_ERROR 3
-
#define STATE_WRQ 6
-
#define STATE_ACK 7
-
-
static IPaddr_t TftpServerIP;
-
static int TftpServerPort; /* The UDP port at their end */
-
static int TftpOurPort; /* The UDP port at our end */
-
static int TftpTimeoutCount;
-
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];
-
-
#ifndef CONFIG_TFTP_FILE_NAME_MAX_LEN
-
#define MAX_LEN 128
-
#else
-
#define MAX_LEN CONFIG_TFTP_FILE_NAME_MAX_LEN
-
#endif
-
-
static char tftp_filename[MAX_LEN];
-
-
#ifdef CFG_DIRECT_FLASH_TFTP
-
extern flash_info_t flash_info[];
-
#endif
-
-
ulong upload_addr = CFG_LOAD_ADDR; /* Default upLoad Address */
-
ulong upload_size = 0;
-
-
/* 512 is poor choice for ethernet, MTU is typically 1500.
-
* Minus eth.hdrs thats 1468. Can get 2x better throughput with
-
* almost-MTU block sizes. At least try... fall back to 512 if need be.
-
*/
-
#define TFTP_MTU_BLOCKSIZE 1468
-
static unsigned short TftpBlkSize=TFTP_BLOCK_SIZE;
-
static unsigned short TftpBlkSizeOption=TFTP_MTU_BLOCKSIZE;
-
-
#ifdef CONFIG_MCAST_TFTP
-
#include
-
#define MTFTP_BITMAPSIZE 0x1000
-
static unsigned *Bitmap;
-
static int PrevBitmapHole,Mapsize=MTFTP_BITMAPSIZE;
-
static uchar ProhibitMcast=0, MasterClient=0;
-
static uchar Multicast=0;
-
extern IPaddr_t Mcast_addr;
-
static int Mcast_port;
-
static ulong TftpEndingBlock; /* can get 'last' block before done..*/
-
-
static void parse_multicast_oack(char *pkt,int len);
-
-
static void
-
mcast_cleanup(void)
-
{
-
if (Mcast_addr) eth_mcast_join(Mcast_addr, 0);
-
if (Bitmap) free(Bitmap);
-
Bitmap=NULL;
-
Mcast_addr = Multicast = Mcast_port = 0;
-
TftpEndingBlock = -1;
-
}
-
-
#endif /* CONFIG_MCAST_TFTP */
-
-
static __inline__ void
-
store_block (unsigned block, uchar * src, unsigned len)
-
{
-
ulong offset = block * TftpBlkSize + TftpBlockWrapOffset;
-
ulong newsize = offset + len;
-
#ifdef CFG_DIRECT_FLASH_TFTP
-
int i, rc = 0;
-
-
for (i=0; i
-
/* start address in flash? */
-
if (flash_info[i].flash_id == FLASH_UNKNOWN)
-
continue;
-
if ((load_addr + offset >= flash_info[i].start[0]) && (load_addr + offset < flash_info[i].start[0] + flash_info[i].size)) {
-
rc = 1;
-
break;
-
}
-
}
-
-
if (rc) { /* Flash is destination for this packet */
-
rc = flash_write ((char *)src, (ulong)(load_addr+offset), len);
-
if (rc) {
-
flash_perror (rc);
-
NetState = NETLOOP_FAIL;
-
return;
-
}
-
}
-
else
-
#endif /* CFG_DIRECT_FLASH_TFTP */
-
{
-
(void)memcpy((void *)(load_addr + offset), src, len);
-
}
-
#ifdef CONFIG_MCAST_TFTP
-
if (Multicast)
-
ext2_set_bit(block, Bitmap);
-
#endif
-
-
if (NetBootFileXferSize < newsize)
-
NetBootFileXferSize = newsize;
-
}
-
-
static void TftpSend (void);
-
static void TftpTimeout (void);
-
-
/**********************************************************************/
-
-
static void
-
TftpSend (void)
-
{
-
volatile uchar * pkt;
-
volatile uchar * xp;
-
int len = 0;
-
int uplen=0;
-
volatile ushort *s;
-
-
#ifdef CONFIG_MCAST_TFTP
-
/* Multicast TFTP.. non-MasterClients do not ACK data. */
-
if (Multicast
-
&& (TftpState == STATE_DATA)
-
&& (MasterClient == 0))
-
return;
-
#endif
-
/*
-
* We will always be sending some sort of packet, so
-
* cobble together the packet headers now.
-
*/
-
pkt = NetTxPacket + NetEthHdrSize() + IP_HDR_SIZE;
-
-
switch (TftpState) {
-
-
case STATE_RRQ:
-
case STATE_WRQ:
-
xp = pkt;
-
-
s = (ushort *)pkt;
-
if(TftpState == STATE_WRQ)
-
*s++ = htons(TFTP_WRQ);
-
else *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;
-
/* try for more effic. blk size */
-
if(TftpState == STATE_WRQ)
-
pkt += sprintf((char *)pkt,"blksize%c%d%c",
-
0,TftpBlkSizeOption,0);
-
else
-
pkt += sprintf((char *)pkt,"blksize%c%d%c",
-
0,TftpBlkSizeOption,0);
-
-
#ifdef CONFIG_MCAST_TFTP
-
/* Check all preconditions before even trying the option */
-
if (!ProhibitMcast
-
&& (Bitmap=malloc(Mapsize))
-
&& eth_get_dev()->mcast) {
-
free(Bitmap);
-
Bitmap=NULL;
-
pkt += sprintf((char *)pkt,"multicast%c%c",0,0);
-
}
-
#endif /* CONFIG_MCAST_TFTP */
-
len = pkt - xp;
-
printf("%%");
-
break;
-
-
case STATE_OACK:
-
#ifdef CONFIG_MCAST_TFTP
-
/* My turn! Start at where I need blocks I missed.*/
-
if (Multicast)
-
TftpBlock=ext2_find_next_zero_bit(Bitmap,(Mapsize*8),0);
-
/*..falling..*/
-
#endif
-
case STATE_DATA:
-
xp = pkt;
-
s = (ushort *)pkt;
-
*s++ = htons(TFTP_ACK);
-
*s++ = htons(TftpBlock);
-
pkt = (uchar *)s;
-
len = pkt - xp;
-
break;
-
-
case STATE_TOO_LARGE:
-
xp = pkt;
-
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;
-
break;
-
-
case STATE_BAD_MAGIC:
-
xp = pkt;
-
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;
-
break;
-
case STATE_ACK:
-
xp = pkt;
-
s = (ushort *)pkt;
-
*s++ = htons(TFTP_DATA);
-
*s++ = htons(TftpBlock+1);
-
pkt = (uchar *)s;
-
-
uplen = (upload_size-TftpBlock*TftpBlkSize);
-
uplen = uplen > TftpBlkSize ? TftpBlkSize : uplen;
-
memcpy((void*)pkt, (const char*)upload_addr + TftpBlock*TftpBlkSize , uplen);
-
pkt += uplen;
-
len = pkt - xp;
-
break;
-
default:
-
return;
-
}
-
-
NetSendUDPPacket(NetServerEther, TftpServerIP, TftpServerPort, TftpOurPort, len);
-
}
-
-
static void tftp_show_transferd(int block, unsigned long wrap)
-
{
-
#define SHOW_TRANSFERD(tail) printf ("\t[%2lu.%03lu MB]%s", ((block-1)* TftpBlkSize + wrap)>>20, \
-
(((block-1) * TftpBlkSize + wrap)&0x0FFFFF)>>10, tail)
-
-
if( ((block-1) & (TBLKS_PER_HASHES-1)) == 0)
-
putc('#');
-
-
if( ((block-1) & (TBLKS_PER_HASHES*HASHES_PER_LINE-1)) == 0) {
-
if((block-1) ==0) {
-
if(wrap==0) {
-
puts("\t[ Connected ]\n");
-
} else {
-
SHOW_TRANSFERD(" [BlockCounter Reset]\n");
-
}
-
} else {
-
SHOW_TRANSFERD("\n");
-
}
-
}
-
#undef SHOW_TRANSFERD
-
}
-
-
static void
-
TftpHandler (uchar * pkt, unsigned dest, unsigned src, unsigned len)
-
{
-
ushort proto;
-
ushort *s;
-
int i;
-
-
if (dest != TftpOurPort) {
-
#ifdef CONFIG_MCAST_TFTP
-
if (Multicast
-
&& (!Mcast_port || (dest != Mcast_port)))
-
#endif
-
return;
-
}
-
if ( !(TftpState==STATE_RRQ || TftpState==STATE_WRQ) && src != TftpServerPort) {
-
return;
-
}
-
-
if (len < 2) {
-
return;
-
}
-
len -= 2;
-
/* warning: don't use increment (++) in ntohs() macros!! */
-
s = (ushort *)pkt;
-
proto = *s++;
-
pkt = (uchar *)s;
-
switch (ntohs(proto)) {
-
-
case TFTP_RRQ:
-
case TFTP_WRQ:
-
break;
-
case TFTP_ACK:
-
TftpServerPort = src;
-
TftpState=STATE_ACK;
-
TftpBlock = ntohs(*(ushort *)pkt);
-
if(TftpLastBlock == TftpBlock) {
-
putc('%');
-
} else {
-
tftp_show_transferd(TftpBlock, TftpBlockWrapOffset);
-
}
-
TftpLastBlock = TftpBlock;
-
NetSetTimeout (TIMEOUT * CFG_HZ, TftpTimeout);
-
-
if(TftpBlkSize*TftpBlock> upload_size )
-
{
-
NetState = NETLOOP_SUCCESS;
-
TftpState = STATE_OK;
-
printf ("\n\t %lu.%03lu MB upload ok.\n", (TftpBlockWrapOffset+upload_size)>>20,
-
((TftpBlockWrapOffset+upload_size)&0x0FFFFF)>>10);
-
break;
-
}
-
TftpSend (); /* Send ACK */
-
break;
-
default:
-
break;
-
-
case TFTP_OACK:
-
#ifdef ET_DEBUG
-
printf("Got OACK: %s %s\n", pkt, pkt+strlen(pkt)+1);
-
#endif
-
if(TftpState == STATE_WRQ)
-
{
-
TftpState = STATE_ACK;
-
TftpBlock = 0;
-
}
-
else
-
{
-
TftpState = STATE_OACK;
-
}
-
TftpServerPort = src;
-
/*
-
* Check for 'blksize' option.
-
* Careful: "i" is signed, "len" is unsigned, thus
-
* something like "len-8" may give a *huge* number
-
*/
-
for (i=0; i+8
-
if (strcmp ((char*)pkt+i,"blksize") == 0) {
-
TftpBlkSize = (unsigned short)
-
simple_strtoul((char*)pkt+i+8,NULL,10);
-
#ifdef ET_DEBUG
-
printf ("Blocksize ack: %s, %d\n",
-
(char*)pkt+i+8,TftpBlkSize);
-
#endif
-
break;
-
}
-
}
-
#ifdef CONFIG_MCAST_TFTP
-
parse_multicast_oack((char *)pkt,len-1);
-
if ((Multicast) && (!MasterClient))
-
TftpState = STATE_DATA; /* passive.. */
-
else
-
#endif
-
TftpSend (); /* Send ACK */
-
break;
-
case TFTP_DATA:
-
if (len < 2)
-
return;
-
len -= 2;
-
TftpBlock = ntohs(*(ushort *)pkt);
-
-
/*
-
* 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 += TftpBlkSize * TFTP_SEQUENCE_SIZE;
-
printf ("\n\t %lu MB received\n\t ", TftpBlockWrapOffset>>20);
-
} else {
-
#if 0
-
if (((TftpBlock - 1) % 10) == 0) {
-
putc ('#');
-
} else if ((TftpBlock % (10 * HASHES_PER_LINE)) == 0) {
-
puts ("\n\t ");
-
}
-
#endif
-
tftp_show_transferd(TftpBlock, TftpBlockWrapOffset);
-
}
-
-
#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;
-
-
#ifdef CONFIG_MCAST_TFTP
-
if (Multicast) { /* start!=1 common if mcast */
-
TftpLastBlock = TftpBlock - 1;
-
} else
-
#endif
-
if (TftpBlock != 1) { /* Assertion */
-
printf ("\nTFTP error: "
-
"First block is not block 1 (%ld)\n"
-
"Starting again\n\n",
-
TftpBlock);
-
NetStartAgain ();
-
break;
-
}
-
}
-
-
if (TftpBlock == TftpLastBlock) {
-
/*
-
* Same block again; ignore it.
-
*/
-
putc ('%');
-
break;
-
}
-
-
TftpLastBlock = TftpBlock;
-
NetSetTimeout (TIMEOUT * CFG_HZ, TftpTimeout);
-
-
store_block (TftpBlock - 1, pkt + 2, len);
-
-
/*
-
* Acknoledge the block just received, which will prompt
-
* the server for the next one.
-
*/
-
#ifdef CONFIG_MCAST_TFTP
-
/* if I am the MasterClient, actively calculate what my next
-
* needed block is; else I'm passive; not ACKING
-
*/
-
if (Multicast) {
-
if (len < TftpBlkSize) {
-
TftpEndingBlock = TftpBlock;
-
} else if (MasterClient) {
-
TftpBlock = PrevBitmapHole =
-
ext2_find_next_zero_bit(
-
Bitmap,
-
(Mapsize*8),
-
PrevBitmapHole);
-
if (TftpBlock > ((Mapsize*8) - 1)) {
-
printf ("tftpfile too big\n");
-
/* try to double it and retry */
-
Mapsize<<=1;
-
mcast_cleanup();
-
NetStartAgain ();
-
return;
-
}
-
TftpLastBlock = TftpBlock;
-
}
-
}
-
#endif
-
TftpSend ();
-
-
#ifdef CONFIG_MCAST_TFTP
-
if (Multicast) {
-
if (MasterClient && (TftpBlock >= TftpEndingBlock)) {
-
puts ("\nMulticast tftp done\n");
-
mcast_cleanup();
-
NetState = NETLOOP_SUCCESS;
-
}
-
}
-
else
-
#endif
-
if (len < TftpBlkSize) {
-
/*
-
* We received the whole thing. Try to
-
* run it.
-
*/
-
printf ("\n\t %lu.%03lu MB download ok.\n", ((TftpBlock-1)* TftpBlkSize + TftpBlockWrapOffset)>>20,
-
(((TftpBlock-1) * TftpBlkSize + TftpBlockWrapOffset)&0x0FFFFF)>>10);
-
puts ("\ndone\n");
-
NetState = NETLOOP_SUCCESS;
-
}
-
break;
-
-
case TFTP_ERROR:
-
printf ("\nTFTP error: '%s' (%d)\n",
-
pkt + 2, ntohs(*(ushort *)pkt));
-
puts ("Starting again\n\n");
-
#ifdef CONFIG_MCAST_TFTP
-
mcast_cleanup();
-
#endif
-
NetStartAgain ();
-
break;
-
}
-
}
-
-
-
static void
-
TftpTimeout (void)
-
{
-
if (++TftpTimeoutCount > TIMEOUT_COUNT) {
-
puts ("\nRetry count exceeded; starting again\n");
-
#ifdef CONFIG_MCAST_TFTP
-
mcast_cleanup();
-
#endif
-
NetStartAgain ();
-
} else {
-
puts ("T ");
-
NetSetTimeout (TIMEOUT * CFG_HZ, TftpTimeout);
-
TftpSend ();
-
}
-
}
-
-
-
void
-
TftpStart (void)
-
{
-
#ifdef CONFIG_TFTP_PORT
-
char *ep; /* Environment pointer */
-
#endif
-
-
if(upload_size)
-
TftpState = STATE_WRQ;
-
else TftpState = STATE_RRQ;
-
-
TftpServerIP = NetServerIP;
-
if (BootFile[0] == '\0') {
-
sprintf(default_filename, "%02lX%02lX%02lX%02lX.img",
-
NetOurIP & 0xFF,
-
(NetOurIP >> 8) & 0xFF,
-
(NetOurIP >> 16) & 0xFF,
-
(NetOurIP >> 24) & 0xFF );
-
-
strncpy(tftp_filename, default_filename, MAX_LEN);
-
tftp_filename[MAX_LEN-1] = 0;
-
-
printf ("*** Warning: no boot file name; using '%s'\n",
-
tftp_filename);
-
} else {
-
char *p = strchr (BootFile, ':');
-
-
if (p == NULL) {
-
strncpy(tftp_filename, BootFile, MAX_LEN);
-
tftp_filename[MAX_LEN-1] = 0;
-
} else {
-
*p++ = '\0';
-
TftpServerIP = string_to_ip (BootFile);
-
strncpy(tftp_filename, p, MAX_LEN);
-
tftp_filename[MAX_LEN-1] = 0;
-
}
-
}
-
-
#if defined(CONFIG_NET_MULTI)
-
printf ("Using %s device\n", eth_get_name());
-
#endif
-
if( TftpState == STATE_WRQ)
-
{
-
puts ("TFTP to server "); print_IPaddr (NetServerIP);
-
}
-
else
-
{
-
puts ("TFTP from server "); print_IPaddr (TftpServerIP);
-
}
-
puts ("; our IP address is "); print_IPaddr (NetOurIP);
-
-
/* Check if we need to send across this subnet */
-
if (NetOurGatewayIP && NetOurSubnetMask) {
-
IPaddr_t OurNet = NetOurIP & NetOurSubnetMask;
-
IPaddr_t ServerNet = TftpServerIP & NetOurSubnetMask;
-
-
if (OurNet != ServerNet) {
-
puts ("; sending through gateway ");
-
print_IPaddr (NetOurGatewayIP) ;
-
}
-
}
-
putc ('\n');
-
-
if( TftpState == STATE_WRQ)
-
printf ("Upload Filename '%s'.", tftp_filename);
-
else printf ("Download Filename '%s'.", tftp_filename);
-
-
if (NetBootFileSize) {
-
printf (" Size is 0x%x Bytes = ", NetBootFileSize<<9);
-
print_size (NetBootFileSize<<9, "");
-
}
-
-
putc ('\n');
-
-
if( TftpState == STATE_WRQ)
-
{
-
printf ("Upload from address: 0x%lx, ", upload_addr);
-
printf ("%lu.%03lu MB to be send ...\n", upload_size>>20, (upload_size&0x0FFFFF)>>10);
-
printf ("Uploading: *\b");
-
}
-
else
-
{
-
printf ("Download to address: 0x%lx\n", load_addr);
-
printf ("Downloading: *\b");
-
}
-
-
NetSetTimeout (TIMEOUT * CFG_HZ, TftpTimeout);
-
NetSetHandler (TftpHandler);
-
-
TftpServerPort = WELL_KNOWN_PORT;
-
TftpTimeoutCount = 0;
-
/* 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;
-
-
TftpLastBlock = 0;
-
TftpBlockWrap = 0;
-
TftpBlockWrapOffset = 0;
-
-
/* zero out server ether in case the server ip has changed */
-
memset(NetServerEther, 0, 6);
-
/* Revert TftpBlkSize to dflt */
-
TftpBlkSize = TFTP_BLOCK_SIZE;
-
#ifdef CONFIG_MCAST_TFTP
-
mcast_cleanup();
-
#endif
-
-
TftpSend ();
-
}
-
-
#ifdef CONFIG_MCAST_TFTP
-
/* Credits: atftp project.
-
*/
-
-
/* pick up BcastAddr, Port, and whether I am [now] the master-client. *
-
* Frame:
-
* +-------+-----------+---+-------~~-------+---+
-
* | opc | multicast | 0 | addr, port, mc | 0 |
-
* +-------+-----------+---+-------~~-------+---+
-
* The multicast addr/port becomes what I listen to, and if 'mc' is '1' then
-
* I am the new master-client so must send ACKs to DataBlocks. If I am not
-
* master-client, I'm a passive client, gathering what DataBlocks I may and
-
* making note of which ones I got in my bitmask.
-
* In theory, I never go from master->passive..
-
* .. this comes in with pkt already pointing just past opc
-
*/
-
static void parse_multicast_oack(char *pkt, int len)
-
{
-
int i;
-
IPaddr_t addr;
-
char *mc_adr, *port, *mc;
-
-
mc_adr=port=mc=NULL;
-
/* march along looking for 'multicast\0', which has to start at least
-
* 14 bytes back from the end.
-
*/
-
for (i=0;i
-
if (strcmp (pkt+i,"multicast") == 0)
-
break;
-
if (i >= (len-14)) /* non-Multicast OACK, ign. */
-
return;
-
-
i+=10; /* strlen multicast */
-
mc_adr = pkt+i;
-
for (;i
-
if (*(pkt+i) == ',') {
-
*(pkt+i) = '\0';
-
if (port) {
-
mc = pkt+i+1;
-
break;
-
} else {
-
port = pkt+i+1;
-
}
-
}
-
}
-
if (!port || !mc_adr || !mc ) return;
-
if (Multicast && MasterClient) {
-
printf ("I got a OACK as master Client, WRONG!\n");
-
return;
-
}
-
/* ..I now accept packets destined for this MCAST addr, port */
-
if (!Multicast) {
-
if (Bitmap) {
-
printf ("Internal failure! no mcast.\n");
-
free(Bitmap);
-
Bitmap=NULL;
-
ProhibitMcast=1;
-
return ;
-
}
-
/* I malloc instead of pre-declare; so that if the file ends
-
* up being too big for this bitmap I can retry
-
*/
-
if (!(Bitmap = malloc (Mapsize))) {
-
printf ("No Bitmap, no multicast. Sorry.\n");
-
ProhibitMcast=1;
-
return;
-
}
-
memset (Bitmap,0,Mapsize);
-
PrevBitmapHole = 0;
-
Multicast = 1;
-
}
-
addr = string_to_ip(mc_adr);
-
if (Mcast_addr != addr) {
-
if (Mcast_addr)
-
eth_mcast_join(Mcast_addr, 0);
-
if (eth_mcast_join(Mcast_addr=addr, 1)) {
-
printf ("Fail to set mcast, revert to TFTP\n");
-
ProhibitMcast=1;
-
mcast_cleanup();
-
NetStartAgain();
-
}
-
}
-
MasterClient = (unsigned char)simple_strtoul((char *)mc,NULL,10);
-
Mcast_port = (unsigned short)simple_strtoul(port,NULL,10);
-
printf ("Multicast: %s:%d [%d]\n", mc_adr, Mcast_port, MasterClient);
-
return;
-
}
-
-
#endif /* Multicast TFTP */
-
-
#endif
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