diff options
Diffstat (limited to 'fs/tftp.c')
| -rw-r--r-- | fs/tftp.c | 6 |
1 files changed, 6 insertions, 0 deletions
@@ -80,6 +80,7 @@ struct file_priv { struct kfifo *fifo; void *buf; int blocksize; + int block_requested; }; struct tftp_priv { @@ -152,11 +153,14 @@ static int tftp_send(struct file_priv *priv) break; case STATE_RDATA: + if (priv->block == priv->block_requested) + return 0; case STATE_OACK: xp = pkt; s = (uint16_t *)pkt; *s++ = htons(TFTP_ACK); *s++ = htons(priv->block); + priv->block_requested = priv->block; pkt = (unsigned char *)s; len = pkt - xp; break; @@ -199,6 +203,7 @@ static int tftp_poll(struct file_priv *priv) if (is_timeout(priv->resend_timeout, TFTP_RESEND_TIMEOUT)) { printf("T "); priv->resend_timeout = get_time_ns(); + priv->block_requested = -1; return TFTP_ERR_RESEND; } @@ -392,6 +397,7 @@ static struct file_priv *tftp_do_open(struct device_d *dev, priv->err = -EINVAL; priv->filename = filename; priv->blocksize = TFTP_BLOCK_SIZE; + priv->block_requested = -1; priv->fifo = kfifo_alloc(4096); if (!priv->fifo) { |