diff options
Diffstat (limited to 'package/uboot-ifxmips/files/net/tftp_danube.c')
| -rw-r--r-- | package/uboot-ifxmips/files/net/tftp_danube.c | 389 |
1 files changed, 389 insertions, 0 deletions
diff --git a/package/uboot-ifxmips/files/net/tftp_danube.c b/package/uboot-ifxmips/files/net/tftp_danube.c new file mode 100644 index 0000000000..f3a5471483 --- /dev/null +++ b/package/uboot-ifxmips/files/net/tftp_danube.c @@ -0,0 +1,389 @@ +/* + * 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 (CONFIG_COMMANDS & CFG_CMD_NET) + +#define WELL_KNOWN_PORT 69 /* Well known TFTP port # */ +#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 TIMEOUT_COUNT (CONFIG_NET_RETRY_COUNT * 2) +#endif + /* (for checking the image size) */ +#define HASHES_PER_LINE 65 /* 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 + + +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]; +static char *tftp_filename; + +#ifdef CFG_DIRECT_FLASH_TFTP +extern flash_info_t flash_info[]; +#endif + +static __inline__ void +store_block (unsigned block, uchar * src, unsigned len) +{ + ulong offset = block * TFTP_BLOCK_SIZE + 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 (load_addr + offset >= flash_info[i].start[0]) { + 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); + } + + 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; + volatile ushort *s; + + /* + * 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: + xp = pkt; + 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; + 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; + } + + NetSendUDPPacket(NetServerEther, NetServerIP, TftpServerPort, TftpOurPort, len); +} + + +static void +TftpHandler (uchar * pkt, unsigned dest, unsigned src, unsigned len) +{ + ushort proto; + ushort *s; + + if (dest != TftpOurPort) { + return; + } + if (TftpState != STATE_RRQ && 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: + case TFTP_ACK: + break; + 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); + + /* + * 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 (%ld)\n" + "Starting again\n\n", + TftpBlock); + NetStartAgain (); + break; + } + } + + if (TftpBlock == TftpLastBlock) { + /* + * Same block again; ignore it. + */ + 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. + */ + TftpSend (); + + if (len < TFTP_BLOCK_SIZE) { + /* + * We received the whole thing. Try to + * run it. + */ + 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"); + NetStartAgain (); + break; + } +} + + +static void +TftpTimeout (void) +{ + if (++TftpTimeoutCount > TIMEOUT_COUNT) { + puts ("\nRetry count exceeded; starting again\n"); + NetStartAgain (); + } else { + puts ("T "); + NetSetTimeout (TIMEOUT * CFG_HZ, TftpTimeout); + TftpSend (); + } +} + + +void +TftpStart (void) +{ +#ifdef CONFIG_TFTP_PORT + char *ep; /* Environment pointer */ +#endif + + if (BootFile[0] == '\0') { + sprintf(default_filename, "%02lX%02lX%02lX%02lX.img", + 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); + } else { + 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); + + /* Check if we need to send across this subnet */ + if (NetOurGatewayIP && NetOurSubnetMask) { + IPaddr_t OurNet = NetOurIP & NetOurSubnetMask; + IPaddr_t ServerNet = NetServerIP & NetOurSubnetMask; + + if (OurNet != ServerNet) { + puts ("; sending through gateway "); + print_IPaddr (NetOurGatewayIP) ; + } + } + putc ('\n'); + + printf ("Filename '%s'.", tftp_filename); + + if (NetBootFileSize) { + printf (" Size is 0x%x Bytes = ", NetBootFileSize<<9); + print_size (NetBootFileSize<<9, ""); + } + + putc ('\n'); + + printf ("Load address: 0x%lx\n", load_addr); + + puts ("Loading: *\b"); + + NetSetTimeout (TIMEOUT * CFG_HZ, TftpTimeout); + NetSetHandler (TftpHandler); + + 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); + + TftpSend (); +} + +#endif /* CFG_CMD_NET */ |