diff options
Diffstat (limited to 'net/tftp.c')
| -rw-r--r-- | net/tftp.c | 62 |
1 files changed, 58 insertions, 4 deletions
@@ -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. */ |