| .. SPDX-License-Identifier: GPL-2.0+: |
| |
| .. index:: |
| single: tftpput (command) |
| |
| tftpput command |
| =============== |
| |
| Synopsis |
| -------- |
| |
| :: |
| |
| tftpput address size [[hostIPaddr:]filename] |
| |
| Description |
| ----------- |
| |
| The tftpput command is used to transfer a file to a TFTP server. |
| |
| By default the destination port is 69 and the source port is pseudo-random. |
| If CONFIG_TFTP_PORT=y, the environment variable *tftpsrcp* can be used to set |
| the source port and the environment variable *tftpdstp* can be used to set |
| the destination port. |
| |
| address |
| memory address where the data starts |
| |
| size |
| number of bytes to be transferred |
| |
| hostIPaddr |
| IP address of the TFTP server, defaults to the value of environment |
| variable *serverip* |
| |
| filename |
| path of the file to be written. If not provided, the client's IP address is |
| used to construct a default file name, e.g. C0.A8.00.28.img for IP address |
| 192.168.0.40. |
| |
| Example |
| ------- |
| |
| In the example the following steps are executed: |
| |
| * setup client network address |
| * load a file from the SD-card |
| * send the file via TFTP to a server |
| |
| :: |
| |
| => setenv autoload no |
| => dhcp |
| BOOTP broadcast 1 |
| DHCP client bound to address 192.168.1.40 (7 ms) |
| => load mmc 0:1 $loadaddr test.txt |
| 260096 bytes read in 13 ms (19.1 MiB/s) |
| => tftpput $loadaddr $filesize 192.168.1.3:upload/test.txt |
| Using ethernet@1c30000 device |
| TFTP to server 192.168.1.3; our IP address is 192.168.1.40 |
| Filename 'upload/test.txt'. |
| Save address: 0x42000000 |
| Save size: 0x3f800 |
| Saving: ################# |
| 4.4 MiB/s |
| done |
| Bytes transferred = 260096 (3f800 hex) |
| => |
| |
| Configuration |
| ------------- |
| |
| The command is only available if CONFIG_CMD_TFTPPUT=y. |
| |
| CONFIG_TFTP_BLOCKSIZE defines the size of the TFTP blocks sent. It defaults |
| to 1468 matching an ethernet MTU of 1500. |
| |
| If CONFIG_TFTP_PORT=y, the environment variables *tftpsrcp* and *tftpdstp* can |
| be used to set the source and the destination ports. |
| |
| CONFIG_TFTP_WINDOWSIZE can be used to set the TFTP window size of transmits |
| after which an ACK response is required. The window size defaults to 1. |
| |
| If CONFIG_TFTP_TSIZE=y, the progress bar is limited to 50 '#' characters. |
| Otherwise an '#' is written per UDP package which may decrease performance. |
| |
| Return value |
| ------------ |
| |
| The return value $? is 0 (true) on success and 1 (false) otherwise. |
