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@ -61,10 +61,43 @@ static char *tftp_filename; |
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extern flash_info_t flash_info[]; |
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extern flash_info_t flash_info[]; |
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#endif |
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#endif |
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/* 512 is poor choice for ethernet, MTU is typically 1500.
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* Minus eth.hdrs thats 1468. Can get 2x better throughput with
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* almost-MTU block sizes. At least try... fall back to 512 if need be. |
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*/ |
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#define TFTP_MTU_BLOCKSIZE 1468 |
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static unsigned short TftpBlkSize=TFTP_BLOCK_SIZE; |
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static unsigned short TftpBlkSizeOption=TFTP_MTU_BLOCKSIZE; |
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#ifdef CONFIG_MCAST_TFTP |
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#include <malloc.h> |
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#define MTFTP_BITMAPSIZE 0x1000 |
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static unsigned *Bitmap; |
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static int PrevBitmapHole,Mapsize=MTFTP_BITMAPSIZE; |
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static uchar ProhibitMcast=0, MasterClient=0; |
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static uchar Multicast=0; |
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extern IPaddr_t Mcast_addr; |
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static int Mcast_port; |
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static ulong TftpEndingBlock; /* can get 'last' block before done..*/ |
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static void parse_multicast_oack(char *pkt,int len); |
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static void |
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mcast_cleanup(void) |
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{ |
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if (Mcast_addr) eth_mcast_join(Mcast_addr, 0); |
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if (Bitmap) free(Bitmap); |
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Bitmap=NULL; |
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Mcast_addr = Multicast = Mcast_port = 0; |
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TftpEndingBlock = -1; |
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} |
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#endif /* CONFIG_MCAST_TFTP */ |
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static __inline__ void |
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static __inline__ void |
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store_block (unsigned block, uchar * src, unsigned len) |
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store_block (unsigned block, uchar * src, unsigned len) |
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{ |
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{ |
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ulong offset = block * TFTP_BLOCK_SIZE + TftpBlockWrapOffset; |
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ulong offset = block * TftpBlkSize + TftpBlockWrapOffset; |
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ulong newsize = offset + len; |
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ulong newsize = offset + len; |
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#ifdef CFG_DIRECT_FLASH_TFTP |
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#ifdef CFG_DIRECT_FLASH_TFTP |
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int i, rc = 0; |
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int i, rc = 0; |
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@ -90,6 +123,10 @@ store_block (unsigned block, uchar * src, unsigned len) |
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{ |
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{ |
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(void)memcpy((void *)(load_addr + offset), src, len); |
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(void)memcpy((void *)(load_addr + offset), src, len); |
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} |
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} |
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#ifdef CONFIG_MCAST_TFTP |
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if (Multicast) |
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ext2_set_bit(block, Bitmap); |
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#endif |
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if (NetBootFileXferSize < newsize) |
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if (NetBootFileXferSize < newsize) |
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NetBootFileXferSize = newsize; |
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NetBootFileXferSize = newsize; |
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@ -108,6 +145,13 @@ TftpSend (void) |
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int len = 0; |
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int len = 0; |
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volatile ushort *s; |
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volatile ushort *s; |
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#ifdef CONFIG_MCAST_TFTP |
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/* Multicast TFTP.. non-MasterClients do not ACK data. */ |
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if (Multicast
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&& (TftpState == STATE_DATA)
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&& (MasterClient == 0))
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return; |
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#endif |
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/*
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/*
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* We will always be sending some sort of packet, so |
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* We will always be sending some sort of packet, so |
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* cobble together the packet headers now. |
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* cobble together the packet headers now. |
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@ -132,11 +176,30 @@ TftpSend (void) |
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printf("send option \"timeout %s\"\n", (char *)pkt); |
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printf("send option \"timeout %s\"\n", (char *)pkt); |
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#endif |
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#endif |
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pkt += strlen((char *)pkt) + 1; |
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pkt += strlen((char *)pkt) + 1; |
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/* try for more effic. blk size */ |
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pkt += sprintf((char *)pkt,"blksize%c%d%c", |
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0,htons(TftpBlkSizeOption),0); |
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#ifdef CONFIG_MCAST_TFTP |
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/* Check all preconditions before even trying the option */ |
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if (!ProhibitMcast
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&& (Bitmap=malloc(Mapsize))
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&& eth_get_dev()->mcast) { |
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free(Bitmap); |
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Bitmap=NULL; |
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pkt += sprintf((char *)pkt,"multicast%c%c",0,0); |
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} |
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#endif /* CONFIG_MCAST_TFTP */ |
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len = pkt - xp; |
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len = pkt - xp; |
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break; |
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break; |
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case STATE_DATA: |
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case STATE_OACK: |
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case STATE_OACK: |
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#ifdef CONFIG_MCAST_TFTP |
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/* My turn! Start at where I need blocks I missed.*/ |
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if (Multicast) |
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TftpBlock=ext2_find_next_zero_bit(Bitmap,(Mapsize*8),0); |
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/*..falling..*/ |
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#endif |
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case STATE_DATA: |
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xp = pkt; |
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xp = pkt; |
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s = (ushort *)pkt; |
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s = (ushort *)pkt; |
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*s++ = htons(TFTP_ACK); |
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*s++ = htons(TFTP_ACK); |
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@ -177,8 +240,13 @@ TftpHandler (uchar * pkt, unsigned dest, unsigned src, unsigned len) |
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{ |
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{ |
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ushort proto; |
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ushort proto; |
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ushort *s; |
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ushort *s; |
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int i; |
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if (dest != TftpOurPort) { |
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if (dest != TftpOurPort) { |
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#ifdef CONFIG_MCAST_TFTP |
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if (Multicast
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&& (!Mcast_port || (dest != Mcast_port))) |
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#endif |
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return; |
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return; |
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} |
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} |
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if (TftpState != STATE_RRQ && src != TftpServerPort) { |
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if (TftpState != STATE_RRQ && src != TftpServerPort) { |
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@ -208,6 +276,24 @@ TftpHandler (uchar * pkt, unsigned dest, unsigned src, unsigned len) |
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#endif |
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#endif |
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TftpState = STATE_OACK; |
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TftpState = STATE_OACK; |
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TftpServerPort = src; |
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TftpServerPort = src; |
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/* Check for 'blksize' option */ |
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for (i=0;i<len-8;i++) { |
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if (strcmp ((char*)pkt+i,"blksize") == 0) { |
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TftpBlkSize = (unsigned short) |
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simple_strtoul((char*)pkt+i+8,NULL,10); |
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#ifdef ET_DEBUG |
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printf ("Blocksize ack: %s, %d\n", |
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(char*)pkt+i+8,TftpBlkSize); |
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#endif |
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break; |
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} |
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} |
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#ifdef CONFIG_MCAST_TFTP |
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parse_multicast_oack((char *)pkt,len-1); |
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if ((Multicast) && (!MasterClient))
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TftpState = STATE_DATA; /* passive.. */ |
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else |
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#endif |
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TftpSend (); /* Send ACK */ |
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TftpSend (); /* Send ACK */ |
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break; |
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break; |
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case TFTP_DATA: |
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case TFTP_DATA: |
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@ -224,7 +310,7 @@ TftpHandler (uchar * pkt, unsigned dest, unsigned src, unsigned len) |
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*/ |
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*/ |
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if (TftpBlock == 0) { |
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if (TftpBlock == 0) { |
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TftpBlockWrap++; |
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TftpBlockWrap++; |
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TftpBlockWrapOffset += TFTP_BLOCK_SIZE * TFTP_SEQUENCE_SIZE; |
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TftpBlockWrapOffset += TftpBlkSize * TFTP_SEQUENCE_SIZE; |
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printf ("\n\t %lu MB received\n\t ", TftpBlockWrapOffset>>20); |
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printf ("\n\t %lu MB received\n\t ", TftpBlockWrapOffset>>20); |
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} else { |
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} else { |
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if (((TftpBlock - 1) % 10) == 0) { |
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if (((TftpBlock - 1) % 10) == 0) { |
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@ -248,6 +334,11 @@ TftpHandler (uchar * pkt, unsigned dest, unsigned src, unsigned len) |
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TftpBlockWrap = 0; |
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TftpBlockWrap = 0; |
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TftpBlockWrapOffset = 0; |
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TftpBlockWrapOffset = 0; |
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#ifdef CONFIG_MCAST_TFTP |
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if (Multicast) { /* start!=1 common if mcast */ |
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TftpLastBlock = TftpBlock - 1; |
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} else |
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#endif |
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if (TftpBlock != 1) { /* Assertion */ |
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if (TftpBlock != 1) { /* Assertion */ |
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printf ("\nTFTP error: " |
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printf ("\nTFTP error: " |
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"First block is not block 1 (%ld)\n" |
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"First block is not block 1 (%ld)\n" |
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@ -274,9 +365,44 @@ TftpHandler (uchar * pkt, unsigned dest, unsigned src, unsigned len) |
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* Acknoledge the block just received, which will prompt |
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* Acknoledge the block just received, which will prompt |
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* the server for the next one. |
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* the server for the next one. |
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*/ |
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*/ |
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#ifdef CONFIG_MCAST_TFTP |
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/* if I am the MasterClient, actively calculate what my next
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* needed block is; else I'm passive; not ACKING
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*/ |
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if (Multicast) { |
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if (len < TftpBlkSize) { |
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TftpEndingBlock = TftpBlock; |
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} else if (MasterClient) { |
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TftpBlock = PrevBitmapHole =
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ext2_find_next_zero_bit( |
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Bitmap, |
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(Mapsize*8), |
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PrevBitmapHole); |
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if (TftpBlock > ((Mapsize*8) - 1)) { |
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printf ("tftpfile too big\n"); |
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/* try to double it and retry */ |
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Mapsize<<=1; |
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mcast_cleanup(); |
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NetStartAgain (); |
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return; |
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} |
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TftpLastBlock = TftpBlock; |
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} |
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} |
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#endif |
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TftpSend (); |
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TftpSend (); |
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if (len < TFTP_BLOCK_SIZE) { |
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#ifdef CONFIG_MCAST_TFTP |
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if (Multicast) { |
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if (MasterClient && (TftpBlock >= TftpEndingBlock)) { |
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puts ("\nMulticast tftp done\n"); |
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mcast_cleanup(); |
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NetState = NETLOOP_SUCCESS; |
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}
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} |
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else |
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#endif |
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if (len < TftpBlkSize) { |
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/*
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/*
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* We received the whole thing. Try to |
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* We received the whole thing. Try to |
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* run it. |
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* run it. |
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@ -290,6 +416,9 @@ TftpHandler (uchar * pkt, unsigned dest, unsigned src, unsigned len) |
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printf ("\nTFTP error: '%s' (%d)\n", |
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printf ("\nTFTP error: '%s' (%d)\n", |
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pkt + 2, ntohs(*(ushort *)pkt)); |
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pkt + 2, ntohs(*(ushort *)pkt)); |
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puts ("Starting again\n\n"); |
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puts ("Starting again\n\n"); |
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#ifdef CONFIG_MCAST_TFTP |
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mcast_cleanup(); |
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#endif |
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NetStartAgain (); |
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NetStartAgain (); |
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break; |
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break; |
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} |
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} |
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@ -301,6 +430,9 @@ TftpTimeout (void) |
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{ |
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{ |
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if (++TftpTimeoutCount > TIMEOUT_COUNT) { |
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if (++TftpTimeoutCount > TIMEOUT_COUNT) { |
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puts ("\nRetry count exceeded; starting again\n"); |
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puts ("\nRetry count exceeded; starting again\n"); |
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#ifdef CONFIG_MCAST_TFTP |
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mcast_cleanup(); |
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#endif |
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NetStartAgain (); |
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NetStartAgain (); |
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} else { |
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} else { |
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puts ("T "); |
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puts ("T "); |
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@ -370,6 +502,7 @@ TftpStart (void) |
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TftpState = STATE_RRQ; |
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TftpState = STATE_RRQ; |
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/* Use a pseudo-random port unless a specific port is set */ |
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/* Use a pseudo-random port unless a specific port is set */ |
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TftpOurPort = 1024 + (get_timer(0) % 3072); |
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TftpOurPort = 1024 + (get_timer(0) % 3072); |
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#ifdef CONFIG_TFTP_PORT |
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#ifdef CONFIG_TFTP_PORT |
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if ((ep = getenv("tftpdstp")) != NULL) { |
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if ((ep = getenv("tftpdstp")) != NULL) { |
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TftpServerPort = simple_strtol(ep, NULL, 10); |
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TftpServerPort = simple_strtol(ep, NULL, 10); |
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@ -382,8 +515,103 @@ TftpStart (void) |
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/* zero out server ether in case the server ip has changed */ |
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/* zero out server ether in case the server ip has changed */ |
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memset(NetServerEther, 0, 6); |
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memset(NetServerEther, 0, 6); |
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/* Revert TftpBlkSize to dflt */ |
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TftpBlkSize = TFTP_BLOCK_SIZE; |
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#ifdef CONFIG_MCAST_TFTP |
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mcast_cleanup(); |
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#endif |
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TftpSend (); |
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TftpSend (); |
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} |
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} |
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#endif |
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#ifdef CONFIG_MCAST_TFTP |
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/* Credits: atftp project.
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*/ |
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/* pick up BcastAddr, Port, and whether I am [now] the master-client. *
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* Frame: |
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* +-------+-----------+---+-------~~-------+---+ |
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* | opc | multicast | 0 | addr, port, mc | 0 | |
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* +-------+-----------+---+-------~~-------+---+ |
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* The multicast addr/port becomes what I listen to, and if 'mc' is '1' then |
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* I am the new master-client so must send ACKs to DataBlocks. If I am not |
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* master-client, I'm a passive client, gathering what DataBlocks I may and |
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* making note of which ones I got in my bitmask. |
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* In theory, I never go from master->passive.. |
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* .. this comes in with pkt already pointing just past opc |
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*/ |
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static void parse_multicast_oack(char *pkt, int len) |
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{ |
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int i; |
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IPaddr_t addr; |
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char *mc_adr, *port, *mc; |
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mc_adr=port=mc=NULL; |
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/* march along looking for 'multicast\0', which has to start at least
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* 14 bytes back from the end. |
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*/ |
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for (i=0;i<len-14;i++) |
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if (strcmp (pkt+i,"multicast") == 0) |
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break; |
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if (i >= (len-14)) /* non-Multicast OACK, ign. */ |
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return; |
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i+=10; /* strlen multicast */ |
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mc_adr = pkt+i; |
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for (;i<len;i++) { |
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if (*(pkt+i) == ',') { |
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*(pkt+i) = '\0'; |
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if (port) { |
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mc = pkt+i+1; |
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break; |
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} else { |
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port = pkt+i+1; |
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} |
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} |
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} |
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if (!port || !mc_adr || !mc ) return; |
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if (Multicast && MasterClient) { |
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printf ("I got a OACK as master Client, WRONG!\n"); |
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return; |
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} |
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/* ..I now accept packets destined for this MCAST addr, port */ |
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if (!Multicast) { |
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if (Bitmap) { |
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printf ("Internal failure! no mcast.\n"); |
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free(Bitmap); |
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Bitmap=NULL; |
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ProhibitMcast=1; |
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return ; |
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} |
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/* I malloc instead of pre-declare; so that if the file ends
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* up being too big for this bitmap I can retry
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*/
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if (!(Bitmap = malloc (Mapsize))) { |
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printf ("No Bitmap, no multicast. Sorry.\n"); |
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ProhibitMcast=1; |
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return; |
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} |
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memset (Bitmap,0,Mapsize); |
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PrevBitmapHole = 0; |
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Multicast = 1; |
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} |
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addr = string_to_ip(mc_adr); |
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if (Mcast_addr != addr) { |
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if (Mcast_addr) |
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eth_mcast_join(Mcast_addr, 0); |
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if (eth_mcast_join(Mcast_addr=addr, 1)) { |
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printf ("Fail to set mcast, revert to TFTP\n"); |
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ProhibitMcast=1; |
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mcast_cleanup(); |
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NetStartAgain(); |
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} |
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} |
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MasterClient = (unsigned char)simple_strtoul((char *)mc,NULL,10); |
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Mcast_port = (unsigned short)simple_strtoul(port,NULL,10); |
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printf ("Multicast: %s:%d [%d]\n", mc_adr, Mcast_port, MasterClient); |
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return; |
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} |
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#endif /* Multicast TFTP */ |
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#endif /* CFG_CMD_NET */ |
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