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nuttx-apps/nshlib/nsh_netcmds.c
Subhra Sankha Sarkar 23ec80fa30 Addressed review comments from @v01d and @xiaoxiang781216
2020-10-28 05:57:47 -07:00

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/****************************************************************************
* apps/nshlib/nsh_netcmds.c
*
* Copyright (C) 2007-2012, 2014-2015, 2017 Gregory Nutt.
* All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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 NuttX 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 COPYRIGHT HOLDERS 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
* COPYRIGHT OWNER 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#ifdef CONFIG_NET
#include <nuttx/compiler.h>
#include <sys/stat.h> /* Needed for open */
#include <stdint.h>
#include <stdbool.h>
#include <stdio.h>
#include <inttypes.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sched.h>
#include <fcntl.h> /* Needed for open */
#include <dirent.h>
#include <libgen.h> /* Needed for basename */
#include <errno.h>
#include <debug.h>
#if defined(CONFIG_LIBC_NETDB) && !defined(CONFIG_NSH_DISABLE_NSLOOKUP)
# include <netdb.h>
#endif
#include <net/ethernet.h>
#include <net/if.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include <netinet/ether.h>
#include <nuttx/irq.h>
#include <nuttx/clock.h>
#include <nuttx/net/net.h>
#include <nuttx/net/netdev.h>
#include <nuttx/net/netstats.h>
#include <nuttx/net/ip.h>
#include <nuttx/net/icmp.h>
#include <nuttx/net/icmpv6.h>
#ifdef CONFIG_NET_6LOWPAN
# include <nuttx/net/sixlowpan.h>
# ifdef CONFIG_WIRELESS_PKTRADIO
# include <nuttx/wireless/pktradio.h>
# endif
#endif
#ifdef CONFIG_NETLINK_ROUTE
# include <nuttx/net/arp.h>
#endif
#ifdef CONFIG_NETUTILS_NETLIB
# include "netutils/netlib.h"
#endif
#ifdef CONFIG_NET_UDP
# include "netutils/netlib.h"
# if !defined(CONFIG_NSH_DISABLE_GET) || !defined(CONFIG_NSH_DISABLE_PUT)
# include "netutils/tftp.h"
# endif
#endif
#ifdef CONFIG_NET_TCP
# ifndef CONFIG_NSH_DISABLE_WGET
# include "netutils/webclient.h"
# endif
#endif
#if defined(CONFIG_NETINIT_DHCPC) || defined(CONFIG_NETINIT_DNS)
# include "netutils/dhcpc.h"
#endif
#include "nsh.h"
#include "nsh_console.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#undef HAVE_HWADDR
#undef HAVE_EADDR
#undef HAVE_RADIOADDR
#if defined(CONFIG_NET_ETHERNET)
# define HAVE_HWADDR 1
#elif defined(CONFIG_NET_6LOWPAN)
# if defined(CONFIG_WIRELESS_IEEE802154)
# define HAVE_HWADDR 1
# define HAVE_EADDR 1
# elif defined(CONFIG_WIRELESS_PKTRADIO)
# define HAVE_HWADDR 1
# define HAVE_RADIOADDR 1
# endif
#endif
/* Get the larger value */
#ifndef MAX
# define MAX(a,b) (a > b ? a : b)
#endif
/****************************************************************************
* Private Types
****************************************************************************/
/* Describes the MAC address of the selected device */
#ifdef HAVE_HWADDR
#if defined(CONFIG_NET_ETHERNET)
typedef uint8_t mac_addr_t[IFHWADDRLEN];
#elif defined(HAVE_EADDR)
typedef uint8_t mac_addr_t[8];
#elif defined(HAVE_RADIOADDR)
typedef struct pktradio_addr_s mac_addr_t;
#endif
#endif
#ifdef CONFIG_NET_UDP
struct tftpc_args_s
{
bool binary; /* true:binary ("octet") false:text ("netascii") */
bool allocated; /* true: destpath is allocated */
FAR char *destpath; /* Path at destination */
FAR const char *srcpath; /* Path at src */
in_addr_t ipaddr; /* Host IP address */
};
#endif
typedef int (*nsh_netdev_callback_t)(FAR struct nsh_vtbl_s *vtbl,
FAR char *devname);
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: net_statistics
****************************************************************************/
#if defined(CONFIG_NET_STATISTICS) && defined(CONFIG_FS_PROCFS) && \
!defined(CONFIG_FS_PROCFS_EXCLUDE_NET) && \
!defined(CONFIG_NSH_DISABLE_IFCONFIG)
static inline void net_statistics(FAR struct nsh_vtbl_s *vtbl)
{
nsh_catfile(vtbl, "ifconfig", CONFIG_NSH_PROC_MOUNTPOINT "/net/stat");
}
#else
# define net_statistics(vtbl)
#endif
/****************************************************************************
* Name: ifconfig_callback
****************************************************************************/
#if !defined(CONFIG_NSH_DISABLE_IFUPDOWN) || !defined(CONFIG_NSH_DISABLE_IFCONFIG)
static int ifconfig_callback(FAR struct nsh_vtbl_s *vtbl, FAR char *devname)
{
char buffer[IFNAMSIZ + 12];
DEBUGASSERT(vtbl != NULL && devname != NULL);
/* Construct the full path to the /proc/net entry for this device */
snprintf(buffer, IFNAMSIZ + 12,
CONFIG_NSH_PROC_MOUNTPOINT "/net/%s", devname);
nsh_catfile(vtbl, "ifconfig", buffer);
return OK;
}
#endif /* !CONFIG_NSH_DISABLE_IFUPDOWN || !CONFIG_NSH_DISABLE_IFCONFIG */
/****************************************************************************
* Name: tftpc_parseargs
****************************************************************************/
#ifdef CONFIG_NET_UDP
int tftpc_parseargs(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv,
struct tftpc_args_s *args)
{
FAR const char *fmt = g_fmtarginvalid;
bool badarg = false;
int option;
/* Get the get/put options */
memset(args, 0, sizeof(struct tftpc_args_s));
while ((option = getopt(argc, argv, ":bnf:h:")) != ERROR)
{
switch (option)
{
case 'b':
args->binary = true;
break;
case 'n':
args->binary = false;
break;
case 'f':
args->destpath = optarg;
break;
case 'h':
if (!netlib_ipv4addrconv(optarg, (FAR uint8_t *)&args->ipaddr))
{
nsh_error(vtbl, g_fmtarginvalid, argv[0]);
badarg = true;
}
break;
case ':':
nsh_error(vtbl, g_fmtargrequired, argv[0]);
badarg = true;
break;
case '?':
default:
nsh_error(vtbl, g_fmtarginvalid, argv[0]);
badarg = true;
break;
}
}
/* If a bad argument was encountered, then return without processing */
if (badarg)
{
return ERROR;
}
/* There should be exactly one parameter left on the command-line */
if (optind == argc - 1)
{
args->srcpath = argv[optind];
}
/* optind == argc means that there is nothing left on the command-line */
else if (optind >= argc)
{
fmt = g_fmtargrequired;
goto errout;
}
/* optind < argc - 1 means that there are too many arguments on the
* command-line
*/
else
{
fmt = g_fmttoomanyargs;
goto errout;
}
/* The HOST IP address is also required */
if (args->ipaddr == 0)
{
fmt = g_fmtargrequired;
goto errout;
}
/* If the destpath was not provided, then we have do a little work. */
if (args->destpath == NULL)
{
FAR char *tmp1;
FAR char *tmp2;
/* Copy the srcpath... baseanme might modify it */
fmt = g_fmtcmdoutofmemory;
tmp1 = strdup(args->srcpath);
if (tmp1 == NULL)
{
goto errout;
}
/* Get the basename of the srcpath */
tmp2 = basename(tmp1);
if (tmp2 == NULL)
{
free(tmp1);
goto errout;
}
/* Use that basename as the destpath */
args->destpath = strdup(tmp2);
free(tmp1);
if (args->destpath == NULL)
{
goto errout;
}
args->allocated = true;
}
return OK;
errout:
nsh_output(vtbl, fmt, argv[0]);
return ERROR;
}
#endif
/****************************************************************************
* Name: wget_callback
****************************************************************************/
#ifdef CONFIG_NET_TCP
#ifndef CONFIG_NSH_DISABLE_WGET
static int wget_callback(FAR char **buffer, int offset, int datend,
FAR int *buflen, FAR void *arg)
{
ssize_t written = write((int)((intptr_t)arg), &((*buffer)[offset]),
datend - offset);
if (written == -1)
{
return -errno;
}
/* Revisit: Do we want to check and report short writes? */
return 0;
}
#endif
#endif
/****************************************************************************
* Name: nsh_foreach_netdev
****************************************************************************/
#if !defined(CONFIG_NSH_DISABLE_IFUPDOWN) || !defined(CONFIG_NSH_DISABLE_IFCONFIG)
static int nsh_foreach_netdev(nsh_netdev_callback_t callback,
FAR struct nsh_vtbl_s *vtbl,
FAR char *cmd)
{
FAR struct dirent *entry;
FAR DIR *dir;
int ret = OK;
/* Open the /proc/net directory */
dir = opendir(CONFIG_NSH_PROC_MOUNTPOINT "/net");
if (dir == NULL)
{
nsh_error(vtbl,
"nsh: %s: Could not open %s/net (is procfs mounted?): %d\n",
cmd, CONFIG_NSH_PROC_MOUNTPOINT, NSH_ERRNO);
return ERROR;
}
/* Look for device configuration "regular" files */
while ((entry = readdir(dir)) != NULL)
{
/* Skip anything that is not a regular file and skip the file
* /proc/dev/stat which does not correspond to a network driver.
*/
if (entry->d_type == DTYPE_FILE &&
strcmp(entry->d_name, "stat") != 0)
{
/* Performt he callback. It returns any non-zero value, then
* terminate the search.
*/
ret = callback(vtbl, entry->d_name);
if (ret != OK)
{
break;
}
}
}
/* Close the directory */
closedir(dir);
return ret;
}
#endif
/****************************************************************************
* Name: nsh_addrconv
****************************************************************************/
#if !defined(CONFIG_NSH_DISABLE_IFCONFIG) && defined(HAVE_HWADDR)
static inline bool nsh_addrconv(FAR const char *hwstr,
FAR mac_addr_t *macaddr)
{
/* REVISIT: How will we handle Ethernet and SLIP networks together? */
#if defined(CONFIG_NET_ETHERNET)
return !netlib_ethaddrconv(hwstr, *macaddr);
#elif defined(HAVE_EADDR)
return !netlib_eaddrconv(hwstr, *macaddr);
#elif defined(HAVE_RADIOADDR)
return !netlib_nodeaddrconv(hwstr, macaddr);
#else
return -ENOSUPP;
#endif
}
#endif
/****************************************************************************
* Name: nsh_sethwaddr
****************************************************************************/
#if !defined(CONFIG_NSH_DISABLE_IFCONFIG) && defined(HAVE_HWADDR)
static inline void nsh_sethwaddr(FAR const char *ifname,
FAR mac_addr_t *macaddr)
{
#if defined(CONFIG_NET_ETHERNET)
netlib_setmacaddr(ifname, *macaddr);
#elif defined(HAVE_EADDR)
netlib_seteaddr(ifname, *macaddr);
#elif defined(HAVE_RADIOADDR)
netlib_setnodeaddr(ifname, macaddr);
#endif
}
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: cmd_get
****************************************************************************/
#ifdef CONFIG_NET_UDP
#ifndef CONFIG_NSH_DISABLE_GET
int cmd_get(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
{
struct tftpc_args_s args;
FAR char *fullpath;
/* Parse the input parameter list */
if (tftpc_parseargs(vtbl, argc, argv, &args) != OK)
{
return ERROR;
}
/* Get the full path to the local file */
fullpath = nsh_getfullpath(vtbl, args.destpath);
/* Then perform the TFTP get operation */
if (tftpget(args.srcpath, fullpath, args.ipaddr, args.binary) != OK)
{
nsh_error(vtbl, g_fmtcmdfailed, argv[0], "tftpget", NSH_ERRNO);
}
/* Release any allocated memory */
if (args.allocated)
{
free(args.destpath);
}
free(fullpath);
return OK;
}
#endif
#endif
/****************************************************************************
* Name: cmd_ifup
****************************************************************************/
#ifndef CONFIG_NSH_DISABLE_IFUPDOWN
int cmd_ifup(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
{
FAR char *ifname = NULL;
int ret;
if (argc != 2)
{
nsh_output(vtbl, "Please select ifname:\n");
return nsh_foreach_netdev(ifconfig_callback, vtbl, "ifup");
}
ifname = argv[1];
ret = netlib_ifup(ifname);
nsh_output(vtbl, "ifup %s...%s\n", ifname, (ret == OK) ? "OK" : "Failed");
return ret;
}
#endif
/****************************************************************************
* Name: cmd_ifdown
****************************************************************************/
#ifndef CONFIG_NSH_DISABLE_IFUPDOWN
int cmd_ifdown(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
{
FAR char *ifname = NULL;
int ret;
if (argc != 2)
{
nsh_output(vtbl, "Please select ifname:\n");
return nsh_foreach_netdev(ifconfig_callback, vtbl, "ifdown");
}
ifname = argv[1];
ret = netlib_ifdown(ifname);
nsh_output(vtbl, "ifdown %s...%s\n",
ifname, (ret == OK) ? "OK" : "Failed");
return ret;
}
#endif
/****************************************************************************
* Name: cmd_ifconfig
****************************************************************************/
#ifndef CONFIG_NSH_DISABLE_IFCONFIG
int cmd_ifconfig(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
{
#ifdef CONFIG_NET_IPv4
struct in_addr addr;
in_addr_t gip = INADDR_ANY;
#endif
#ifdef CONFIG_NET_IPv6
struct in6_addr addr6;
#endif
int i;
FAR char *ifname = NULL;
FAR char *hostip = NULL;
FAR char *gwip = NULL;
FAR char *mask = NULL;
FAR char *tmp = NULL;
#ifdef HAVE_HWADDR
FAR char *hw = NULL;
#endif
#if defined(CONFIG_NETINIT_DHCPC) || defined(CONFIG_NETINIT_DNS)
FAR char *dns = NULL;
#endif
#if defined(CONFIG_NET_IPv4) && defined(CONFIG_NET_IPv6)
bool inet6 = false;
#endif
bool missingarg = true;
bool badarg = false;
#ifdef HAVE_HWADDR
mac_addr_t macaddr;
#endif
#if defined(CONFIG_NETINIT_DHCPC)
FAR void *handle;
#endif
int ret;
/* With one or no arguments, ifconfig simply shows the status of the
* network device:
*
* ifconfig
* ifconfig [interface]
*/
if (argc <= 2)
{
ret = nsh_foreach_netdev(ifconfig_callback, vtbl, "ifconfig");
if (ret < 0)
{
return ERROR;
}
net_statistics(vtbl);
return OK;
}
/* If both the network interface name and an IP address are supplied as
* arguments, then ifconfig will set the address of the Ethernet device:
*
* ifconfig ifname [ip_address] [named options]
*/
if (argc > 2)
{
for (i = 1; i < argc; i++)
{
if (i == 1)
{
ifname = argv[i];
missingarg = false;
}
else
{
tmp = argv[i];
if (!strcmp(tmp, "dr") || !strcmp(tmp, "gw") ||
!strcmp(tmp, "gateway"))
{
if (argc - 1 >= i + 1)
{
gwip = argv[i + 1];
i++;
}
else
{
badarg = true;
}
}
else if (!strcmp(tmp, "netmask"))
{
if (argc - 1 >= i + 1)
{
mask = argv[i + 1];
i++;
}
else
{
badarg = true;
}
}
else if (!strcmp(tmp, "inet"))
{
#if defined(CONFIG_NET_IPv4) && defined(CONFIG_NET_IPv6)
inet6 = false;
#elif !defined(CONFIG_NET_IPv4)
badarg = true;
#endif
}
else if (!strcmp(tmp, "inet6"))
{
#if defined(CONFIG_NET_IPv4) && defined(CONFIG_NET_IPv6)
inet6 = true;
#elif !defined(CONFIG_NET_IPv6)
badarg = true;
#endif
}
#ifdef HAVE_HWADDR
/* REVISIT: How will we handle Ethernet and SLIP together? */
else if (!strcmp(tmp, "hw"))
{
if (argc - 1 >= i + 1)
{
hw = argv[i + 1];
i++;
badarg = nsh_addrconv(hw, &macaddr);
}
else
{
badarg = true;
}
}
#endif
#if defined(CONFIG_NETINIT_DHCPC) || defined(CONFIG_NETINIT_DNS)
else if (!strcmp(tmp, "dns"))
{
if (argc - 1 >= i + 1)
{
dns = argv[i + 1];
i++;
}
else
{
badarg = true;
}
}
#endif
else if (i == 2)
{
hostip = tmp;
}
else
{
badarg = true;
}
}
}
}
if (missingarg)
{
nsh_error(vtbl, g_fmtargrequired, argv[0]);
return ERROR;
}
if (badarg)
{
nsh_error(vtbl, g_fmtarginvalid, argv[0]);
return ERROR;
}
#ifdef HAVE_HWADDR
/* Set Hardware Ethernet MAC address */
if (hw != NULL)
{
ninfo("HW MAC: %s\n", hw);
nsh_sethwaddr(ifname, &macaddr);
}
#endif
/* Set IP address */
#ifdef CONFIG_NET_IPv6
#ifdef CONFIG_NET_IPv4
if (inet6)
#endif
{
if (hostip != NULL)
{
/* REVISIT: Should DHCPC check be used here too? */
ninfo("Host IP: %s\n", hostip);
inet_pton(AF_INET6, hostip, &addr6);
}
netlib_set_ipv6addr(ifname, &addr6);
}
#endif /* CONFIG_NET_IPv6 */
#ifdef CONFIG_NET_IPv4
#ifdef CONFIG_NET_IPv6
else
#endif
{
if (hostip != NULL)
{
#if defined(CONFIG_NETINIT_DHCPC)
if (strcmp(hostip, "dhcp") == 0)
{
/* Set DHCP addr */
ninfo("DHCPC Mode\n");
addr.s_addr = 0;
gip = 0;
}
else
#endif
{
/* Set host IP address */
ninfo("Host IP: %s\n", hostip);
addr.s_addr = inet_addr(hostip);
gip = addr.s_addr;
}
}
netlib_set_ipv4addr(ifname, &addr);
}
#endif /* CONFIG_NET_IPv4 */
/* Set gateway */
#ifdef CONFIG_NET_IPv6
#ifdef CONFIG_NET_IPv4
if (inet6)
#endif
{
/* Only set the gateway address if it was explicitly provided. */
if (gwip != NULL)
{
ninfo("Gateway: %s\n", gwip);
inet_pton(AF_INET6, gwip, &addr6);
netlib_set_dripv6addr(ifname, &addr6);
}
}
#endif /* CONFIG_NET_IPv6 */
#ifdef CONFIG_NET_IPv4
#ifdef CONFIG_NET_IPv6
else
#endif
{
if (gwip != NULL)
{
ninfo("Gateway: %s\n", gwip);
gip = addr.s_addr = inet_addr(gwip);
}
else
{
if (gip != 0)
{
ninfo("Gateway: default\n");
gip = NTOHL(gip);
gip &= ~0x000000ff;
gip |= 0x00000001;
gip = HTONL(gip);
}
addr.s_addr = gip;
}
netlib_set_dripv4addr(ifname, &addr);
}
#endif /* CONFIG_NET_IPv4 */
/* Set network mask */
#ifdef CONFIG_NET_IPv6
#ifdef CONFIG_NET_IPv4
if (inet6)
#endif
{
if (mask != NULL)
{
ninfo("Netmask: %s\n", mask);
inet_pton(AF_INET6, mask, &addr6);
}
else
{
ninfo("Netmask: Default\n");
inet_pton(AF_INET6, "ffff:ffff:ffff:ffff::", &addr6);
}
netlib_set_ipv6netmask(ifname, &addr6);
}
#endif /* CONFIG_NET_IPv6 */
#ifdef CONFIG_NET_IPv4
#ifdef CONFIG_NET_IPv6
else
#endif
{
if (mask != NULL)
{
ninfo("Netmask: %s\n", mask);
addr.s_addr = inet_addr(mask);
}
else
{
ninfo("Netmask: Default\n");
addr.s_addr = inet_addr("255.255.255.0");
}
netlib_set_ipv4netmask(ifname, &addr);
}
#endif /* CONFIG_NET_IPv4 */
UNUSED(ifname); /* Not used in all configurations */
#if defined(CONFIG_NETINIT_DHCPC) || defined(CONFIG_NETINIT_DNS)
#ifdef CONFIG_NET_IPv6
#ifdef CONFIG_NET_IPv4
if (inet6)
#endif
{
#warning Missing Logic
}
#endif /* CONFIG_NET_IPv6 */
#ifdef CONFIG_NET_IPv4
#ifdef CONFIG_NET_IPv6
else
#endif
{
if (dns != NULL)
{
ninfo("DNS: %s\n", dns);
addr.s_addr = inet_addr(dns);
}
else
{
ninfo("DNS: Default\n");
addr.s_addr = gip;
}
netlib_set_ipv4dnsaddr(&addr);
}
#endif /* CONFIG_NET_IPv4 */
#endif /* CONFIG_NETINIT_DHCPC || CONFIG_NETINIT_DNS */
#if defined(CONFIG_NETINIT_DHCPC)
/* Get the MAC address of the NIC */
if (!gip)
{
netlib_getmacaddr("eth0", macaddr);
/* Set up the DHCPC modules */
handle = dhcpc_open("eth0", &macaddr, IFHWADDRLEN);
/* Get an IP address. Note that there is no logic for renewing the IP
* address in this example. The address should be renewed in
* ds.lease_time/2 seconds.
*/
if (handle != NULL)
{
struct dhcpc_state ds;
dhcpc_request(handle, &ds);
netlib_set_ipv4addr("eth0", &ds.ipaddr);
if (ds.netmask.s_addr != 0)
{
netlib_set_ipv4netmask("eth0", &ds.netmask);
}
if (ds.default_router.s_addr != 0)
{
netlib_set_dripv4addr("eth0", &ds.default_router);
}
if (ds.dnsaddr.s_addr != 0)
{
netlib_set_ipv4dnsaddr(&ds.dnsaddr);
}
dhcpc_close(handle);
}
}
#endif
#if !defined(CONFIG_NET_IPv4) && !defined(CONFIG_NET_IPv6)
UNUSED(hostip);
UNUSED(mask);
UNUSED(gwip);
#endif
#ifdef CONFIG_NET_IPv4
UNUSED(gip);
#endif
return OK;
}
#endif
/****************************************************************************
* Name: cmd_nslookup
****************************************************************************/
#if defined(CONFIG_LIBC_NETDB) && !defined(CONFIG_NSH_DISABLE_NSLOOKUP)
int cmd_nslookup(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
{
FAR struct addrinfo *info;
FAR struct addrinfo *next;
char buffer[48];
int ret;
/* We should be guaranteed this by the command line parser */
DEBUGASSERT(argc == 2);
/* Get the matching address + canonical name */
ret = getaddrinfo(argv[1], NULL, NULL, &info);
if (ret != OK)
{
nsh_error(vtbl, g_fmtcmdfailed,
argv[0], "getaddrinfo", NSH_HERRNO_OF(ret));
return ERROR;
}
for (next = info; next != NULL; next = next->ai_next)
{
/* Convert the address to a string */
ret = getnameinfo(next->ai_addr, next->ai_addrlen,
buffer, sizeof(buffer), NULL, 0, NI_NUMERICHOST);
if (ret != OK)
{
freeaddrinfo(info);
nsh_error(vtbl, g_fmtcmdfailed,
argv[0], "getnameinfo", NSH_HERRNO_OF(ret));
return ERROR;
}
/* Print the host name / address mapping */
nsh_output(vtbl, "Host: %s Addr: %s\n", next->ai_canonname, buffer);
}
freeaddrinfo(info);
return OK;
}
#endif
/****************************************************************************
* Name: cmd_arp
****************************************************************************/
#if defined(CONFIG_NET_ARP) && !defined(CONFIG_NSH_DISABLE_ARP)
int cmd_arp(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
{
struct sockaddr_in inaddr;
struct ether_addr mac;
int ret;
/* Forms:
*
* arp -t
* arp -a <ipaddr>
* arp -d <ipdaddr>
* arp -s <ipaddr> <hwaddr>
*/
#ifdef CONFIG_NETLINK_ROUTE
if (strcmp(argv[1], "-t") == 0)
{
FAR struct arp_entry_s *arptab;
size_t arpsize;
ssize_t nentries;
char ipaddr[16];
char ethaddr[24];
int i;
if (argc != 2)
{
goto errout_toomany;
}
/* Allocate a buffer to hold the ARP table */
arpsize = CONFIG_NET_ARPTAB_SIZE * sizeof(struct arp_entry_s);
arptab = (FAR struct arp_entry_s *)malloc(arpsize);
if (arptab == NULL)
{
nsh_error(vtbl, g_fmtcmdoutofmemory, argv[0]);
return ERROR;
}
/* Read the ARP table */
nentries = netlib_get_arptable(arptab, CONFIG_NET_ARPTAB_SIZE);
if (nentries < 0)
{
nsh_error(vtbl, g_fmtcmdfailed, argv[0], netlib_get_arptable,
NSH_ERRNO_OF(-nentries));
free(arptab);
return ERROR;
}
/* Dump the ARP table
*
* xx.xx.xx.xx xx:xx:xx:xx:xx:xx xxxxxxxx[xxxxxxxx]
*/
nsh_output(vtbl, "%-12s %-17s Last Access Time\n",
"IP Address", "Ethernet Address");
for (i = 0; i < nentries; i++)
{
FAR uint8_t *ptr;
/* Convert the IPv4 address to a string */
ptr = (FAR uint8_t *)&arptab[i].at_ipaddr;
snprintf(ipaddr, 16, "%u.%u.%u.%u",
ptr[0], ptr[1], ptr[2], ptr[3]);
/* Convert the MAC address string to a binary */
snprintf(ethaddr, 24, "%02x:%02x:%02x:%02x:%02x:%02x",
arptab[i].at_ethaddr.ether_addr_octet[0],
arptab[i].at_ethaddr.ether_addr_octet[1],
arptab[i].at_ethaddr.ether_addr_octet[2],
arptab[i].at_ethaddr.ether_addr_octet[3],
arptab[i].at_ethaddr.ether_addr_octet[4],
arptab[i].at_ethaddr.ether_addr_octet[5]);
#ifdef CONFIG_SYSTEM_TIME64
nsh_output(vtbl, "%-12s %-17s 0x%" PRIx64 "\n",
ipaddr, ethaddr, (uint64_t)arptab[i].at_time);
#else
nsh_output(vtbl, "%-12s %-17s 0x%" PRIx32 "\n",
ipaddr, ethaddr, (uint32_t)arptab[i].at_time);
#endif
}
free(arptab);
ret = OK;
}
else
#endif
if (strcmp(argv[1], "-a") == 0)
{
if (argc != 3)
{
goto errout_toomany;
}
/* Show the corresponding hardware address */
inaddr.sin_family = AF_INET;
inaddr.sin_port = 0;
inaddr.sin_addr.s_addr = inet_addr(argv[2]);
ret = netlib_get_arpmapping(&inaddr, mac.ether_addr_octet);
if (ret < 0)
{
goto errout_cmdfaild;
}
nsh_output(vtbl, "HWaddr: %s\n", ether_ntoa(&mac));
}
else if (strcmp(argv[1], "-d") == 0)
{
if (argc != 3)
{
goto errout_toomany;
}
/* Delete the corresponding address mapping from the arp table */
inaddr.sin_family = AF_INET;
inaddr.sin_port = 0;
inaddr.sin_addr.s_addr = inet_addr(argv[2]);
ret = netlib_del_arpmapping(&inaddr);
if (ret < 0)
{
goto errout_cmdfaild;
}
}
else if (strcmp(argv[1], "-s") == 0)
{
if (argc != 4)
{
goto errout_missing;
}
/* Convert the MAC address string to a binary */
if (!netlib_ethaddrconv(argv[3], mac.ether_addr_octet))
{
goto errout_invalid;
}
/* Add the address mapping to the arp table */
inaddr.sin_family = AF_INET;
inaddr.sin_port = 0;
inaddr.sin_addr.s_addr = inet_addr(argv[2]);
ret = netlib_set_arpmapping(&inaddr, mac.ether_addr_octet);
if (ret < 0)
{
goto errout_cmdfaild;
}
}
else
{
goto errout_invalid;
}
return OK;
/* Error exits */
errout_cmdfaild:
if (ret == -ENOENT)
{
nsh_error(vtbl, g_fmtnosuch, argv[0], "ARP entry", argv[2]);
}
else
{
nsh_error(vtbl, g_fmtcmdfailed, argv[0], "ioctl", NSH_ERRNO);
}
return ERROR;
errout_missing:
nsh_error(vtbl, g_fmttoomanyargs, argv[0]);
return ERROR;
errout_toomany:
nsh_error(vtbl, g_fmtargrequired, argv[0]);
return ERROR;
errout_invalid:
nsh_error(vtbl, g_fmtarginvalid, argv[0]);
return ERROR;
}
#endif
/****************************************************************************
* Name: cmd_put
****************************************************************************/
#ifdef CONFIG_NET_UDP
#ifndef CONFIG_NSH_DISABLE_PUT
int cmd_put(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
{
struct tftpc_args_s args;
FAR char *fullpath;
/* Parse the input parameter list */
if (tftpc_parseargs(vtbl, argc, argv, &args) != OK)
{
return ERROR;
}
/* Get the full path to the local file */
fullpath = nsh_getfullpath(vtbl, args.srcpath);
/* Then perform the TFTP put operation */
if (tftpput(fullpath, args.destpath, args.ipaddr, args.binary) != OK)
{
nsh_error(vtbl, g_fmtcmdfailed, argv[0], "tftpput", NSH_ERRNO);
}
/* Release any allocated memory */
if (args.allocated)
{
free(args.destpath);
}
free(fullpath);
return OK;
}
#endif
#endif
/****************************************************************************
* Name: cmd_wget
****************************************************************************/
#ifdef CONFIG_NET_TCP
#ifndef CONFIG_NSH_DISABLE_WGET
int cmd_wget(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
{
FAR char *localfile = NULL;
FAR char *allocfile = NULL;
FAR char *buffer = NULL;
FAR char *fullpath = NULL;
FAR char *url;
FAR const char *fmt;
bool badarg = false;
int option;
int fd = -1;
int ret;
/* Get the wget options */
while ((option = getopt(argc, argv, ":o:")) != ERROR)
{
switch (option)
{
case 'o':
localfile = optarg;
break;
case ':':
nsh_error(vtbl, g_fmtargrequired, argv[0]);
badarg = true;
break;
case '?':
default:
nsh_error(vtbl, g_fmtarginvalid, argv[0]);
badarg = true;
break;
}
}
/* If a bad argument was encountered, then return without processing the
* command
*/
if (badarg)
{
return ERROR;
}
/* There should be exactly on parameter left on the command-line */
if (optind == argc - 1)
{
url = argv[optind];
}
else if (optind >= argc)
{
fmt = g_fmttoomanyargs;
goto errout;
}
else
{
fmt = g_fmtargrequired;
goto errout;
}
/* Get the local file name */
if (localfile == NULL)
{
allocfile = strdup(url);
localfile = basename(allocfile);
}
/* Get the full path to the local file */
fullpath = nsh_getfullpath(vtbl, localfile);
/* Open the local file for writing */
fd = open(fullpath, O_WRONLY | O_CREAT | O_TRUNC, 0644);
if (fd < 0)
{
nsh_error(vtbl, g_fmtcmdfailed, argv[0], "open", NSH_ERRNO);
ret = ERROR;
goto exit;
}
/* Allocate an I/O buffer */
buffer = malloc(CONFIG_NSH_WGET_BUFF_SIZE);
if (buffer == NULL)
{
fmt = g_fmtcmdoutofmemory;
goto errout;
}
/* And perform the wget */
struct webclient_context ctx;
webclient_set_defaults(&ctx);
ctx.method = "GET";
ctx.url = url;
ctx.buffer = buffer;
ctx.buflen = CONFIG_NSH_WGET_BUFF_SIZE;
ctx.sink_callback = wget_callback;
ctx.sink_callback_arg = (FAR void *)((intptr_t)fd);
ret = webclient_perform(&ctx);
if (ret < 0)
{
errno = -ret;
nsh_error(vtbl, g_fmtcmdfailed, argv[0], "wget", NSH_ERRNO);
goto exit;
}
/* Free allocated resources */
exit:
if (fd >= 0)
{
close(fd);
}
if (allocfile != NULL)
{
free(allocfile);
}
if (fullpath != NULL)
{
free(fullpath);
}
if (buffer != NULL)
{
free(buffer);
}
return ret;
errout:
nsh_error(vtbl, fmt, argv[0]);
ret = ERROR;
goto exit;
}
#endif
#endif
#endif /* CONFIG_NET */
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