two new shell commands: download and sendcmd
This commit is contained in:
fros4943
parent
7810d362a6
commit
a23b4fd40b
7 changed files with 539 additions and 4 deletions
268
apps/shell/shell-download.c
Normal file
268
apps/shell/shell-download.c
Normal file
|
|
@ -0,0 +1,268 @@
|
|||
/*
|
||||
* Copyright (c) 2009, Swedish Institute of Computer Science.
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the Institute nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* This file is part of the Contiki operating system.
|
||||
*
|
||||
* $Id: shell-download.c,v 1.1 2009/04/16 14:33:47 fros4943 Exp $
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file Shell command for downloading files from a remote node.
|
||||
* Example usage:
|
||||
* 'download <node addr> <filename> | write <local_filename'.
|
||||
*
|
||||
* \author Luca Mottola <luca@sics.se>, Fredrik Osterlind <fros@sics.se>
|
||||
*/
|
||||
|
||||
#include "contiki.h"
|
||||
#include "shell.h"
|
||||
|
||||
#include "net/rime.h"
|
||||
#include "cfs/cfs.h"
|
||||
|
||||
#include "dev/leds.h"
|
||||
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
|
||||
#define RUNICAST_CHANNEL SHELL_RIME_CHANNEL_DOWNLOAD
|
||||
#define RUCB_CHANNEL (SHELL_RIME_CHANNEL_DOWNLOAD+1)
|
||||
#define MAX_RETRANSMISSIONS 8
|
||||
|
||||
#define DEBUG 0
|
||||
|
||||
#if DEBUG
|
||||
#define PRINTF(...) printf(__VA_ARGS__)
|
||||
#else
|
||||
#define PRINTF(...)
|
||||
#endif
|
||||
|
||||
/*---------------------------------------------------------------------------*/
|
||||
PROCESS(shell_download_process, "download");
|
||||
PROCESS(shell_download_server_process, "download server");
|
||||
SHELL_COMMAND(download_command,
|
||||
"download",
|
||||
"download <node addr> <filename>: download file from remote node",
|
||||
&shell_download_process);
|
||||
/*---------------------------------------------------------------------------*/
|
||||
static struct runicast_conn runicast;
|
||||
static struct rucb_conn rucb;
|
||||
static uint8_t downloading;
|
||||
static uint8_t req_seq_counter;
|
||||
static uint8_t req_last_seq;
|
||||
static int fd;
|
||||
/*---------------------------------------------------------------------------*/
|
||||
static void
|
||||
write_chunk(struct rucb_conn *c, int offset, int flag, char *data, int datalen)
|
||||
{
|
||||
if (datalen > 0) {
|
||||
shell_output(&download_command,
|
||||
data, datalen, NULL, 0);
|
||||
PRINTF("write_chunk %d at %d bytes\n", datalen, offset);
|
||||
}
|
||||
|
||||
if (flag == RUCB_FLAG_NEWFILE) {
|
||||
PRINTF("RUCB_FLAG_NEWFILE\n");
|
||||
}
|
||||
if (flag == RUCB_FLAG_NONE) {
|
||||
PRINTF("RUCB_FLAG_NONE\n");
|
||||
}
|
||||
if (flag == RUCB_FLAG_LASTCHUNK) {
|
||||
PRINTF("RUCB_FLAG_LASTCHUNK\n");
|
||||
downloading = 0;
|
||||
process_poll(&shell_download_process);
|
||||
}
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
static int
|
||||
read_chunk(struct rucb_conn *c, int offset, char *to, int maxsize)
|
||||
{
|
||||
int ret;
|
||||
if (fd < 0) {
|
||||
/* No file, send EOF */
|
||||
leds_off(LEDS_GREEN);
|
||||
return 0;
|
||||
}
|
||||
|
||||
cfs_seek(fd, offset, CFS_SEEK_SET);
|
||||
ret = cfs_read(fd, to, maxsize);
|
||||
PRINTF("read_chunk %d bytes at %d\n", ret, offset);
|
||||
|
||||
if (ret < maxsize) {
|
||||
PRINTF("read_chunk DONE\n");
|
||||
cfs_close(fd);
|
||||
fd = -1;
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
static int
|
||||
timedout(struct rucb_conn *c)
|
||||
{
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
const static struct rucb_callbacks rucb_call = {write_chunk, read_chunk, timedout};
|
||||
/*---------------------------------------------------------------------------*/
|
||||
PROCESS_THREAD(shell_download_process, ev, data)
|
||||
{
|
||||
const char *nextptr;
|
||||
static rimeaddr_t addr;
|
||||
int len;
|
||||
char buf[32];
|
||||
|
||||
PROCESS_BEGIN();
|
||||
|
||||
/* Parse node addr */
|
||||
addr.u8[0] = shell_strtolong(data, &nextptr);
|
||||
if(nextptr == data || *nextptr != '.') {
|
||||
shell_output_str(&download_command,
|
||||
"download <node addr> <filename>: need node address", "");
|
||||
PROCESS_EXIT();
|
||||
}
|
||||
++nextptr;
|
||||
addr.u8[1] = shell_strtolong(nextptr, &nextptr);
|
||||
|
||||
/* Get the length of the file, excluding a terminating NUL character. */
|
||||
while ((uint8_t)nextptr[0] == ' ') {
|
||||
nextptr++;
|
||||
}
|
||||
len = strlen((char *)nextptr);
|
||||
|
||||
snprintf(buf, sizeof(buf), "%d.%d", addr.u8[0], addr.u8[1]);
|
||||
/*shell_output_str(&download_command, "Downloading from: ", buf);*/
|
||||
|
||||
if(len > PACKETBUF_SIZE - 32) {
|
||||
snprintf(buf, sizeof(buf), "%d", len);
|
||||
shell_output_str(&download_command, "filename too large: ", buf);
|
||||
PROCESS_EXIT();
|
||||
}
|
||||
|
||||
/*shell_output_str(&download_command, "Downloading file: ", nextptr);*/
|
||||
|
||||
/* Send file request */
|
||||
downloading = 1;
|
||||
rucb_open(&rucb, RUCB_CHANNEL, &rucb_call);
|
||||
nextptr--;
|
||||
req_seq_counter++;
|
||||
nextptr[0] = req_seq_counter;
|
||||
packetbuf_copyfrom(nextptr, len+2);
|
||||
PRINTF("requesting '%s'\n", nextptr);
|
||||
runicast_send(&runicast, &addr, MAX_RETRANSMISSIONS);
|
||||
|
||||
/* Wait for download to finish */
|
||||
leds_on(LEDS_BLUE);
|
||||
PROCESS_WAIT_UNTIL(!runicast_is_transmitting(&runicast) && !downloading);
|
||||
leds_off(LEDS_BLUE);
|
||||
|
||||
rucb_close(&rucb);
|
||||
/*shell_output_str(&download_command, "Done!", "");*/
|
||||
|
||||
PROCESS_END();
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
static void
|
||||
request_recv(struct runicast_conn *c, rimeaddr_t *from, uint8_t seqno)
|
||||
{
|
||||
const char *filename;
|
||||
uint8_t seq;
|
||||
|
||||
if (packetbuf_datalen() < 2) {
|
||||
/* Bad filename, ignore request */
|
||||
printf("download: bad filename request (null)\n");
|
||||
return;
|
||||
}
|
||||
|
||||
seq = ((char*)packetbuf_dataptr())[0];
|
||||
if (seq == req_last_seq) {
|
||||
PRINTF("download: ignoring duplicate request\n");
|
||||
return;
|
||||
}
|
||||
req_last_seq = seq;
|
||||
filename = ((char*)packetbuf_dataptr())+1;
|
||||
|
||||
PRINTF("file requested: '%s'\n", filename);
|
||||
|
||||
/* Initiate file transfer */
|
||||
leds_on(LEDS_GREEN);
|
||||
if (fd >= 0) {
|
||||
cfs_close(fd);
|
||||
}
|
||||
fd = cfs_open(filename, CFS_READ);
|
||||
if (fd < 0) {
|
||||
printf("download: bad filename request (no read access): %s\n", filename);
|
||||
} else {
|
||||
PRINTF("download: sending file: %s\n", filename);
|
||||
}
|
||||
|
||||
rucb_close(&rucb);
|
||||
rucb_open(&rucb, RUCB_CHANNEL, &rucb_call);
|
||||
rucb_send(&rucb, from);
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
static void
|
||||
request_sent(struct runicast_conn *c, rimeaddr_t *to, uint8_t retransmissions)
|
||||
{
|
||||
process_poll(&shell_download_process);
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
static void
|
||||
request_timedout(struct runicast_conn *c, rimeaddr_t *to, uint8_t retransmissions)
|
||||
{
|
||||
shell_output_str(&download_command,
|
||||
"download: request timed out", "");
|
||||
downloading = 0;
|
||||
process_poll(&shell_download_process);
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
static const struct runicast_callbacks runicast_callbacks =
|
||||
{request_recv, request_sent, request_timedout};
|
||||
/*---------------------------------------------------------------------------*/
|
||||
PROCESS_THREAD(shell_download_server_process, ev, data)
|
||||
{
|
||||
PROCESS_EXITHANDLER( runicast_close(&runicast); rucb_close(&rucb); );
|
||||
|
||||
PROCESS_BEGIN();
|
||||
|
||||
runicast_open(&runicast, RUNICAST_CHANNEL, &runicast_callbacks);
|
||||
PROCESS_WAIT_UNTIL(0);
|
||||
|
||||
PROCESS_END();
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
void
|
||||
shell_download_init(void)
|
||||
{
|
||||
req_seq_counter = 0;
|
||||
req_last_seq = -1;
|
||||
fd = -1;
|
||||
downloading = 0;
|
||||
shell_register_command(&download_command);
|
||||
process_start(&shell_download_server_process, NULL);
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
Loading…
Add table
Add a link
Reference in a new issue