关于uboot中tftp上传内存数据到tftp服务器
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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] <upload_size>\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 <common.h>
- #include <command.h>
- #include <net.h>
- #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 <malloc.h>
- #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<CFG_MAX_FLASH_BANKS; 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<len; i++) {
- 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<len-14;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<len;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