TFTP is a bad protocol for transferring files because it adds some of features that TCP offers (ack's, retransmission, error detection, reordering, etc.) to the UDP but at the applicaction layer (slower!). Think why you need to use TFTP instead of FTP. In most of the cases you can ...
8、e:8 mbytes sector:135flash_protect on: from 0xbf000000 to 0xbf023a7bflash_protect on: from 0xbf030000 to 0xbf030fff* warning - bad crc, using default environment_| _ _ _ _ _ _ 9、 | / _ / / |_ / _ / / | _ _ _ _ _ | | | _ / / / _ _) | | | | | ...
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 ...
TftpServerPort = WELL_KNOWN_PORT; TftpTimeoutCount = 0; /* 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...
#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) ...
/*last packet sequence number received*/staticulongTftpBlockWrap;/*count of sequence number wraparounds*/staticulongTftpBlockWrapOffset;/*memory offset due to wrapping*/staticintTftpState;#defineSTATE_RRQ 1#defineSTATE_DATA 2#defineSTATE_TOO_LARGE 3#defineSTATE_BAD_MAGIC 4#defineSTATE_OACK 5#...
TFTP is a terrific and often misunderstood transferring method. Although it has a bad reputation for its lack of security, it doesn’t have much overhead, making it a reliable, quick, and easy transferring mechanism. You can use it in enclosed LANs or WANs, where speed reigns over security...
#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) ...
(20 bytes). Larger packets run a high risk of being fragmented at the IP level, and this is generally considered abad thing. With a block size of 1468 bytes, the maximum transfer size is over 91 MiB. Increasing the block size improves the transfer performance at the same time as ...
Emitted when an error occurs. The error is mostly caused by a bad packet reception, so almost always, if the server emits an error, it is still alive accepting new requests. listening Arguments: none. Emitted when the server has been bound to the socket after calling tolisten(). ...