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TFTP: net/tftp.c: add server mode receive

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Signed-off-by: Luca Ceresoli <luca.ceresoli@comelit.it>
Cc: Wolfgang Denk <wd@denx.de>
Acked-by: Detlev Zundel <dzu@denx.de>
This commit is contained in:
Luca Ceresoli 2011-05-17 00:03:39 +00:00 committed by Wolfgang Denk
parent e3fb0abe2b
commit e59e35620a
2 changed files with 64 additions and 4 deletions
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62
net/tftp.c
View file

@ -2,6 +2,8 @@
* 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>
@ -85,6 +87,7 @@ static short TftpNumchars;
#define STATE_TOO_LARGE 3
#define STATE_BAD_MAGIC 4
#define STATE_OACK 5
#define STATE_RECV_WRQ 6
/* default TFTP block size */
#define TFTP_BLOCK_SIZE 512
@ -257,6 +260,8 @@ TftpSend(void)
(Mapsize*8), 0);
/*..falling..*/
#endif
case STATE_RECV_WRQ:
case STATE_DATA:
xp = pkt;
s = (ushort *)pkt;
@ -309,7 +314,8 @@ TftpHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src,
#endif
return;
}
if (TftpState != STATE_SEND_RRQ && src != TftpRemotePort)
if (TftpState != STATE_SEND_RRQ && src != TftpRemotePort &&
TftpState != STATE_RECV_WRQ)
return;
if (len < 2)
@ -322,12 +328,24 @@ TftpHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src,
switch (ntohs(proto)) {
case TFTP_RRQ:
case TFTP_WRQ:
case TFTP_ACK:
break;
default:
break;
#ifdef CONFIG_CMD_TFTPSRV
case TFTP_WRQ:
debug("Got WRQ\n");
TftpRemoteIP = sip;
TftpRemotePort = src;
TftpOurPort = 1024 + (get_timer(0) % 3072);
TftpLastBlock = 0;
TftpBlockWrap = 0;
TftpBlockWrapOffset = 0;
TftpSend(); /* Send ACK(0) */
break;
#endif
case TFTP_OACK:
debug("Got OACK: %s %s\n",
pkt,
@ -402,7 +420,8 @@ TftpHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src,
if (TftpState == STATE_SEND_RRQ)
debug("Server did not acknowledge timeout option!\n");
if (TftpState == STATE_SEND_RRQ || TftpState == STATE_OACK) {
if (TftpState == STATE_SEND_RRQ || TftpState == STATE_OACK ||
TftpState == STATE_RECV_WRQ) {
/* first block received */
TftpState = STATE_DATA;
TftpRemotePort = src;
@ -537,7 +556,8 @@ TftpTimeout(void)
} else {
puts("T ");
NetSetTimeout(TftpTimeoutMSecs, TftpTimeout);
TftpSend();
if (TftpState != STATE_RECV_WRQ)
TftpSend();
}
}
@ -661,6 +681,40 @@ TftpStart(void)
TftpSend();
}
#ifdef CONFIG_CMD_TFTPSRV
void
TftpStartServer(void)
{
tftp_filename[0] = 0;
#if defined(CONFIG_NET_MULTI)
printf("Using %s device\n", eth_get_name());
#endif
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;
NetSetHandler(TftpHandler);
}
#endif /* CONFIG_CMD_TFTPSRV */
#ifdef CONFIG_MCAST_TFTP
/* Credits: atftp project.
*/

6
net/tftp.h
View file

@ -2,6 +2,8 @@
* LiMon - BOOTP/TFTP.
*
* Copyright 1994, 1995, 2000 Neil Russell.
* Copyright 2011 Comelit Group SpA
* Luca Ceresoli <luca.ceresoli@comelit.it>
* (See License)
*/
@ -16,6 +18,10 @@
/* tftp.c */
extern void TftpStart (void); /* Begin TFTP get */
#ifdef CONFIG_CMD_TFTPSRV
extern void TftpStartServer(void); /* Wait for incoming TFTP put */
#endif
/**********************************************************************/
#endif /* __TFTP_H__ */