* Copyright 1994, 1995, 2000 Neil Russell.
* (See License)
* Copyright 2000, 2001 DENX Software Engineering, Wolfgang Denk, wd@denx.de
+ * Copyright 2011 Comelit Group SpA,
+ * Luca Ceresoli <luca.ceresoli@comelit.it>
*/
#include <common.h>
#include <net.h>
#include "tftp.h"
#include "bootp.h"
+#ifdef CONFIG_SYS_DIRECT_FLASH_TFTP
+#include <flash.h>
+#endif
/* Well known TFTP port # */
#define WELL_KNOWN_PORT 69
TFTP_ERR_FILE_ALREADY_EXISTS = 6,
};
-static IPaddr_t TftpServerIP;
+static IPaddr_t TftpRemoteIP;
/* The UDP port at their end */
-static int TftpServerPort;
+static int TftpRemotePort;
/* The UDP port at our end */
static int TftpOurPort;
static int TftpTimeoutCount;
/* The number of hashes we printed */
static short TftpNumchars;
#endif
+#ifdef CONFIG_CMD_TFTPPUT
+static int TftpWriting; /* 1 if writing, else 0 */
+static int TftpFinalBlock; /* 1 if we have sent the last block */
+#else
+#define TftpWriting 0
+#endif
-#define STATE_RRQ 1
+#define STATE_SEND_RRQ 1
#define STATE_DATA 2
#define STATE_TOO_LARGE 3
#define STATE_BAD_MAGIC 4
#define STATE_OACK 5
+#define STATE_RECV_WRQ 6
+#define STATE_SEND_WRQ 7
/* default TFTP block size */
#define TFTP_BLOCK_SIZE 512
static char tftp_filename[MAX_LEN];
-#ifdef CONFIG_SYS_DIRECT_FLASH_TFTP
-extern flash_info_t flash_info[];
-#endif
-
/* 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 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 uchar ProhibitMcast, MasterClient;
+static uchar Multicast;
static int Mcast_port;
static ulong TftpEndingBlock; /* can get 'last' block before done..*/
static void
mcast_cleanup(void)
{
- if (Mcast_addr) eth_mcast_join(Mcast_addr, 0);
- if (Bitmap) free(Bitmap);
+ 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)
+static inline void
+store_block(int block, uchar *src, unsigned len)
{
ulong offset = block * TftpBlkSize + TftpBlockWrapOffset;
ulong newsize = offset + len;
rc = flash_write((char *)src, (ulong)(load_addr+offset), len);
if (rc) {
flash_perror(rc);
- NetState = NETLOOP_FAIL;
+ net_set_state(NETLOOP_FAIL);
return;
}
- }
- else
+ } else
#endif /* CONFIG_SYS_DIRECT_FLASH_TFTP */
{
(void)memcpy((void *)(load_addr + offset), src, len);
NetBootFileXferSize = newsize;
}
+/* Clear our state ready for a new transfer */
+static void new_transfer(void)
+{
+ TftpLastBlock = 0;
+ TftpBlockWrap = 0;
+ TftpBlockWrapOffset = 0;
+#ifdef CONFIG_CMD_TFTPPUT
+ TftpFinalBlock = 0;
+#endif
+}
+
+#ifdef CONFIG_CMD_TFTPPUT
+/**
+ * Load the next block from memory to be sent over tftp.
+ *
+ * @param block Block number to send
+ * @param dst Destination buffer for data
+ * @param len Number of bytes in block (this one and every other)
+ * @return number of bytes loaded
+ */
+static int load_block(unsigned block, uchar *dst, unsigned len)
+{
+ /* We may want to get the final block from the previous set */
+ ulong offset = ((int)block - 1) * len + TftpBlockWrapOffset;
+ ulong tosend = len;
+
+ tosend = min(NetBootFileXferSize - offset, tosend);
+ (void)memcpy(dst, (void *)(save_addr + offset), tosend);
+ debug("%s: block=%d, offset=%ld, len=%d, tosend=%ld\n", __func__,
+ block, offset, len, tosend);
+ return tosend;
+}
+#endif
+
static void TftpSend(void);
static void TftpTimeout(void);
/**********************************************************************/
+static void show_block_marker(void)
+{
+#ifdef CONFIG_TFTP_TSIZE
+ if (TftpTsize) {
+ ulong pos = TftpBlock * TftpBlkSize + TftpBlockWrapOffset;
+
+ while (TftpNumchars < pos * 50 / TftpTsize) {
+ putc('#');
+ TftpNumchars++;
+ }
+ } else
+#endif
+ {
+ if (((TftpBlock - 1) % 10) == 0)
+ putc('#');
+ else if ((TftpBlock % (10 * HASHES_PER_LINE)) == 0)
+ puts("\n\t ");
+ }
+}
+
+/**
+ * restart the current transfer due to an error
+ *
+ * @param msg Message to print for user
+ */
+static void restart(const char *msg)
+{
+ printf("\n%s; starting again\n", msg);
+#ifdef CONFIG_MCAST_TFTP
+ mcast_cleanup();
+#endif
+ NetStartAgain();
+}
+
+/*
+ * Check if the block number has wrapped, and update progress
+ *
+ * TODO: The egregious use of global variables in this file should be tidied.
+ */
+static void update_block_number(void)
+{
+ /*
+ * 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;
+ TftpTimeoutCount = 0; /* we've done well, reset thhe timeout */
+ } else {
+ show_block_marker();
+ }
+}
+
+/* The TFTP get or put is complete */
+static void tftp_complete(void)
+{
+#ifdef CONFIG_TFTP_TSIZE
+ /* Print hash marks for the last packet received */
+ while (TftpTsize && TftpNumchars < 49) {
+ putc('#');
+ TftpNumchars++;
+ }
+#endif
+ puts("\ndone\n");
+ net_set_state(NETLOOP_SUCCESS);
+}
+
static void
TftpSend(void)
{
- volatile uchar *pkt;
- volatile uchar *xp;
- int len = 0;
- volatile ushort *s;
+ uchar *pkt;
+ uchar *xp;
+ int len = 0;
+ ushort *s;
#ifdef CONFIG_MCAST_TFTP
/* Multicast TFTP.. non-MasterClients do not ACK data. */
* We will always be sending some sort of packet, so
* cobble together the packet headers now.
*/
- pkt = NetTxPacket + NetEthHdrSize() + IP_HDR_SIZE;
+ pkt = NetTxPacket + NetEthHdrSize() + IP_UDP_HDR_SIZE;
switch (TftpState) {
-
- case STATE_RRQ:
+ case STATE_SEND_RRQ:
+ case STATE_SEND_WRQ:
xp = pkt;
s = (ushort *)pkt;
+#ifdef CONFIG_CMD_TFTPPUT
+ *s++ = htons(TftpState == STATE_SEND_RRQ ? TFTP_RRQ :
+ TFTP_WRQ);
+#else
*s++ = htons(TFTP_RRQ);
+#endif
pkt = (uchar *)s;
strcpy((char *)pkt, tftp_filename);
pkt += strlen(tftp_filename) + 1;
debug("send option \"timeout %s\"\n", (char *)pkt);
pkt += strlen((char *)pkt) + 1;
#ifdef CONFIG_TFTP_TSIZE
- memcpy((char *)pkt, "tsize\0000\0", 8);
- pkt += 8;
+ pkt += sprintf((char *)pkt, "tsize%c%lu%c",
+ 0, NetBootFileXferSize, 0);
#endif
/* try for more effic. blk size */
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);
+ if (!ProhibitMcast) {
+ Bitmap = malloc(Mapsize);
+ if (Bitmap && eth_get_dev()->mcast) {
+ free(Bitmap);
+ Bitmap = NULL;
+ pkt += sprintf((char *)pkt, "multicast%c%c",
+ 0, 0);
+ }
}
#endif /* CONFIG_MCAST_TFTP */
len = pkt - xp;
(Mapsize*8), 0);
/*..falling..*/
#endif
+
+ case STATE_RECV_WRQ:
case STATE_DATA:
xp = pkt;
s = (ushort *)pkt;
- *s++ = htons(TFTP_ACK);
- *s++ = htons(TftpBlock);
- pkt = (uchar *)s;
+ s[0] = htons(TFTP_ACK);
+ s[1] = htons(TftpBlock);
+ pkt = (uchar *)(s + 2);
+#ifdef CONFIG_CMD_TFTPPUT
+ if (TftpWriting) {
+ int toload = TftpBlkSize;
+ int loaded = load_block(TftpBlock, pkt, toload);
+
+ s[0] = htons(TFTP_DATA);
+ pkt += loaded;
+ TftpFinalBlock = (loaded < toload);
+ }
+#endif
len = pkt - xp;
break;
xp = pkt;
s = (ushort *)pkt;
*s++ = htons(TFTP_ERROR);
- *s++ = htons(3);
+ *s++ = htons(3);
+
pkt = (uchar *)s;
strcpy((char *)pkt, "File too large");
pkt += 14 /*strlen("File too large")*/ + 1;
break;
}
- NetSendUDPPacket(NetServerEther, TftpServerIP, TftpServerPort,
+ NetSendUDPPacket(NetServerEther, TftpRemoteIP, TftpRemotePort,
TftpOurPort, len);
}
+#ifdef CONFIG_CMD_TFTPPUT
+static void icmp_handler(unsigned type, unsigned code, unsigned dest,
+ IPaddr_t sip, unsigned src, uchar *pkt, unsigned len)
+{
+ if (type == ICMP_NOT_REACH && code == ICMP_NOT_REACH_PORT) {
+ /* Oh dear the other end has gone away */
+ restart("TFTP server died");
+ }
+}
+#endif
static void
TftpHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src,
if (Multicast
&& (!Mcast_port || (dest != Mcast_port)))
#endif
- return;
+ return;
}
- if (TftpState != STATE_RRQ && src != TftpServerPort) {
+ if (TftpState != STATE_SEND_RRQ && src != TftpRemotePort &&
+ TftpState != STATE_RECV_WRQ && TftpState != STATE_SEND_WRQ)
return;
- }
- if (len < 2) {
+ if (len < 2)
return;
- }
len -= 2;
/* warning: don't use increment (++) in ntohs() macros!! */
s = (ushort *)pkt;
switch (ntohs(proto)) {
case TFTP_RRQ:
- case TFTP_WRQ:
+ break;
+
case TFTP_ACK:
+#ifdef CONFIG_CMD_TFTPPUT
+ if (TftpWriting) {
+ if (TftpFinalBlock) {
+ tftp_complete();
+ } else {
+ /*
+ * Move to the next block. We want our block
+ * count to wrap just like the other end!
+ */
+ int block = ntohs(*s);
+ int ack_ok = (TftpBlock == block);
+
+ TftpBlock = (unsigned short)(block + 1);
+ update_block_number();
+ if (ack_ok)
+ TftpSend(); /* Send next data block */
+ }
+ }
+#endif
break;
+
default:
break;
+#ifdef CONFIG_CMD_TFTPSRV
+ case TFTP_WRQ:
+ debug("Got WRQ\n");
+ TftpRemoteIP = sip;
+ TftpRemotePort = src;
+ TftpOurPort = 1024 + (get_timer(0) % 3072);
+ new_transfer();
+ TftpSend(); /* Send ACK(0) */
+ break;
+#endif
+
case TFTP_OACK:
debug("Got OACK: %s %s\n",
pkt,
pkt + strlen((char *)pkt) + 1);
TftpState = STATE_OACK;
- TftpServerPort = src;
+ TftpRemotePort = src;
/*
* Check for 'blksize' option.
* Careful: "i" is signed, "len" is unsigned, thus
TftpState = STATE_DATA; /* passive.. */
else
#endif
- TftpSend(); /* Send ACK */
+#ifdef CONFIG_CMD_TFTPPUT
+ if (TftpWriting) {
+ /* Get ready to send the first block */
+ TftpState = STATE_DATA;
+ TftpBlock++;
+ }
+#endif
+ TftpSend(); /* Send ACK or first data block */
break;
case TFTP_DATA:
if (len < 2)
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);
- }
-#ifdef CONFIG_TFTP_TSIZE
- else if (TftpTsize) {
- while (TftpNumchars <
- NetBootFileXferSize * 50 / TftpTsize) {
- putc('#');
- TftpNumchars++;
- }
- }
-#endif
- else {
- if (((TftpBlock - 1) % 10) == 0) {
- putc('#');
- } else if ((TftpBlock % (10 * HASHES_PER_LINE)) == 0) {
- puts("\n\t ");
- }
- }
+ update_block_number();
- if (TftpState == STATE_RRQ)
+ if (TftpState == STATE_SEND_RRQ)
debug("Server did not acknowledge timeout option!\n");
- if (TftpState == STATE_RRQ || TftpState == STATE_OACK) {
+ if (TftpState == STATE_SEND_RRQ || TftpState == STATE_OACK ||
+ TftpState == STATE_RECV_WRQ) {
/* first block received */
TftpState = STATE_DATA;
- TftpServerPort = src;
- TftpLastBlock = 0;
- TftpBlockWrap = 0;
- TftpBlockWrapOffset = 0;
+ TftpRemotePort = src;
+ new_transfer();
#ifdef CONFIG_MCAST_TFTP
if (Multicast) { /* start!=1 common if mcast */
store_block(TftpBlock - 1, pkt + 2, len);
/*
- * Acknoledge the block just received, which will prompt
- * the server for the next one.
+ * Acknowledge the block just received, which will prompt
+ * the remote for the next one.
*/
#ifdef CONFIG_MCAST_TFTP
/* if I am the MasterClient, actively calculate what my next
if (MasterClient && (TftpBlock >= TftpEndingBlock)) {
puts("\nMulticast tftp done\n");
mcast_cleanup();
- NetState = NETLOOP_SUCCESS;
+ net_set_state(NETLOOP_SUCCESS);
}
- }
- else
+ } else
#endif
- if (len < TftpBlkSize) {
- /*
- * We received the whole thing. Try to
- * run it.
- */
-#ifdef CONFIG_TFTP_TSIZE
- /* Print hash marks for the last packet received */
- while (TftpTsize && TftpNumchars < 49) {
- putc('#');
- TftpNumchars++;
- }
-#endif
- puts("\ndone\n");
- NetState = NETLOOP_SUCCESS;
- }
+ if (len < TftpBlkSize)
+ tftp_complete();
break;
case TFTP_ERROR:
case TFTP_ERR_ACCESS_DENIED:
puts("Not retrying...\n");
eth_halt();
- NetState = NETLOOP_FAIL;
+ net_set_state(NETLOOP_FAIL);
break;
case TFTP_ERR_UNDEFINED:
case TFTP_ERR_DISK_FULL:
TftpTimeout(void)
{
if (++TftpTimeoutCount > TftpTimeoutCountMax) {
- puts("\nRetry count exceeded; starting again\n");
-#ifdef CONFIG_MCAST_TFTP
- mcast_cleanup();
-#endif
- NetStartAgain();
+ restart("Retry count exceeded");
} else {
puts("T ");
NetSetTimeout(TftpTimeoutMSecs, TftpTimeout);
- TftpSend();
+ if (TftpState != STATE_RECV_WRQ)
+ TftpSend();
}
}
-void
-TftpStart(void)
+void TftpStart(enum proto_t protocol)
{
char *ep; /* Environment pointer */
* Allow the user to choose TFTP blocksize and timeout.
* TFTP protocol has a minimal timeout of 1 second.
*/
- if ((ep = getenv("tftpblocksize")) != NULL)
+ ep = getenv("tftpblocksize");
+ if (ep != NULL)
TftpBlkSizeOption = simple_strtol(ep, NULL, 10);
- if ((ep = getenv("tftptimeout")) != NULL)
+ ep = getenv("tftptimeout");
+ if (ep != NULL)
TftpTimeoutMSecs = simple_strtol(ep, NULL, 10);
if (TftpTimeoutMSecs < 1000) {
debug("TFTP blocksize = %i, timeout = %ld ms\n",
TftpBlkSizeOption, TftpTimeoutMSecs);
- TftpServerIP = NetServerIP;
+ TftpRemoteIP = NetServerIP;
if (BootFile[0] == '\0') {
- sprintf(default_filename, "%02lX%02lX%02lX%02lX.img",
+ sprintf(default_filename, "%02X%02X%02X%02X.img",
NetOurIP & 0xFF,
(NetOurIP >> 8) & 0xFF,
(NetOurIP >> 16) & 0xFF,
strncpy(tftp_filename, BootFile, MAX_LEN);
tftp_filename[MAX_LEN-1] = 0;
} else {
- TftpServerIP = string_to_ip(BootFile);
+ TftpRemoteIP = string_to_ip(BootFile);
strncpy(tftp_filename, p + 1, MAX_LEN);
tftp_filename[MAX_LEN-1] = 0;
}
}
-#if defined(CONFIG_NET_MULTI)
printf("Using %s device\n", eth_get_name());
+ printf("TFTP %s server %pI4; our IP address is %pI4",
+#ifdef CONFIG_CMD_TFTPPUT
+ protocol == TFTPPUT ? "to" : "from",
+#else
+ "from",
#endif
- printf("TFTP from server %pI4"
- "; our IP address is %pI4", &TftpServerIP, &NetOurIP);
+ &TftpRemoteIP, &NetOurIP);
/* Check if we need to send across this subnet */
if (NetOurGatewayIP && NetOurSubnetMask) {
- IPaddr_t OurNet = NetOurIP & NetOurSubnetMask;
- IPaddr_t ServerNet = TftpServerIP & NetOurSubnetMask;
+ IPaddr_t OurNet = NetOurIP & NetOurSubnetMask;
+ IPaddr_t RemoteNet = TftpRemoteIP & NetOurSubnetMask;
- if (OurNet != ServerNet)
- printf("; sending through gateway %pI4", &NetOurGatewayIP);
+ if (OurNet != RemoteNet)
+ printf("; sending through gateway %pI4",
+ &NetOurGatewayIP);
}
putc('\n');
}
putc('\n');
-
- printf("Load address: 0x%lx\n", load_addr);
-
- puts("Loading: *\b");
+#ifdef CONFIG_CMD_TFTPPUT
+ TftpWriting = (protocol == TFTPPUT);
+ if (TftpWriting) {
+ printf("Save address: 0x%lx\n", save_addr);
+ printf("Save size: 0x%lx\n", save_size);
+ NetBootFileXferSize = save_size;
+ puts("Saving: *\b");
+ TftpState = STATE_SEND_WRQ;
+ new_transfer();
+ } else
+#endif
+ {
+ printf("Load address: 0x%lx\n", load_addr);
+ puts("Loading: *\b");
+ TftpState = STATE_SEND_RRQ;
+ }
TftpTimeoutCountMax = TftpRRQTimeoutCountMax;
NetSetTimeout(TftpTimeoutMSecs, TftpTimeout);
- NetSetHandler(TftpHandler);
-
- TftpServerPort = WELL_KNOWN_PORT;
+ net_set_udp_handler(TftpHandler);
+#ifdef CONFIG_CMD_TFTPPUT
+ net_set_icmp_handler(icmp_handler);
+#endif
+ TftpRemotePort = 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) {
+ ep = getenv("tftpdstp");
+ if (ep != NULL)
+ TftpRemotePort = simple_strtol(ep, NULL, 10);
+ ep = getenv("tftpsrcp");
+ if (ep != NULL)
TftpOurPort = simple_strtol(ep, NULL, 10);
- }
#endif
TftpBlock = 0;
TftpSend();
}
+#ifdef CONFIG_CMD_TFTPSRV
+void
+TftpStartServer(void)
+{
+ tftp_filename[0] = 0;
+
+ printf("Using %s device\n", eth_get_name());
+ printf("Listening for TFTP transfer on %pI4\n", &NetOurIP);
+ printf("Load address: 0x%lx\n", load_addr);
+
+ puts("Loading: *\b");
+
+ TftpTimeoutCountMax = TIMEOUT_COUNT;
+ TftpTimeoutCount = 0;
+ TftpTimeoutMSecs = TIMEOUT;
+ NetSetTimeout(TftpTimeoutMSecs, TftpTimeout);
+
+ /* Revert TftpBlkSize to dflt */
+ TftpBlkSize = TFTP_BLOCK_SIZE;
+ TftpBlock = 0;
+ TftpOurPort = WELL_KNOWN_PORT;
+
+#ifdef CONFIG_TFTP_TSIZE
+ TftpTsize = 0;
+ TftpNumchars = 0;
+#endif
+
+ TftpState = STATE_RECV_WRQ;
+ net_set_udp_handler(TftpHandler);
+}
+#endif /* CONFIG_CMD_TFTPSRV */
+
#ifdef CONFIG_MCAST_TFTP
/* Credits: atftp project.
*/
}
}
}
- if (!port || !mc_adr || !mc) return;
+ if (!port || !mc_adr || !mc)
+ return;
if (Multicast && MasterClient) {
printf("I got a OACK as master Client, WRONG!\n");
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))) {
+ Bitmap = malloc(Mapsize);
+ if (!Bitmap) {
printf("No Bitmap, no multicast. Sorry.\n");
ProhibitMcast = 1;
return;
if (Mcast_addr != addr) {
if (Mcast_addr)
eth_mcast_join(Mcast_addr, 0);
- if (eth_mcast_join(Mcast_addr = addr, 1)) {
+ Mcast_addr = addr;
+ if (eth_mcast_join(Mcast_addr, 1)) {
printf("Fail to set mcast, revert to TFTP\n");
ProhibitMcast = 1;
mcast_cleanup();
projects / karo-tx-uboot.git / blobdiff