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ping cmd with specified netif in lwip-2.1.2 

using LWIP_HOOK_IP4_ROUTE_SRC hook find specified netif route, using
cmd `ping 192.168.xx.xx e0`, ping dest using e0 netif. if not found
netif, using default netif, the effect is same as the cmd `ping 192.168.xx.xx` that only ping with default netif.
This commit is contained in:
yukelab 2021-09-07 10:20:58 +08:00 committed by liuxianliang
parent 5711b0a76b
commit cda78884aa
4 changed files with 49 additions and 3 deletions
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24
components/net/lwip-2.1.2/src/arch/sys_arch.c
View File

@ -779,6 +779,30 @@ void ppp_trace(int level, const char *format, ...)
}
#endif
struct netif *lwip_ip4_route_src(const ip4_addr_t *dest, const ip4_addr_t *src)
{
struct netif *netif;
/* iterate through netifs */
for (netif = netif_list; netif != NULL; netif = netif->next)
{
/* is the netif up, does it have a link and a valid address? */
if (netif_is_up(netif) && netif_is_link_up(netif) && !ip4_addr_isany_val(*netif_ip4_addr(netif)))
{
/* gateway matches on a non broadcast interface? (i.e. peer in a point to point interface) */
if (src != NULL)
{
if (ip4_addr_cmp(src, netif_ip4_addr(netif)))
{
return netif;
}
}
}
}
netif = netif_default;
return netif;
}
/*
* export bsd socket symbol for RT-Thread Application Module
*/

1
components/net/lwip-2.1.2/src/lwipopts.h
View File

@ -648,4 +648,5 @@
#endif
#define LWIP_HOOK_IP4_ROUTE_SRC(dest, src) lwip_ip4_route_src(dest, src)
#endif /* __LWIPOPTS_H__ */

7
components/net/lwip-2.1.2/src/netif/ethernetif.c
View File

@ -201,6 +201,7 @@ int lwip_netdev_ping(struct netdev *netif, const char *host, size_t data_len,
struct addrinfo hint, *res = RT_NULL;
struct sockaddr_in *h = RT_NULL;
struct in_addr ina;
struct sockaddr_in local;
RT_ASSERT(netif);
RT_ASSERT(host);
@ -227,6 +228,12 @@ int lwip_netdev_ping(struct netdev *netif, const char *host, size_t data_len,
return -RT_ERROR;
}
local.sin_len = sizeof(local);
local.sin_family = AF_INET;
local.sin_port = 0;
local.sin_addr.s_addr = (netif->ip_addr.addr);
lwip_bind(s, (struct sockaddr *)&local, sizeof(struct sockaddr_in));
lwip_setsockopt(s, SOL_SOCKET, SO_RCVTIMEO, &recv_timeout, sizeof(recv_timeout));
if (lwip_ping_send(s, &target_addr, data_len) == ERR_OK)

20
components/net/netdev/src/netdev.c
View File

@ -1052,7 +1052,7 @@ MSH_CMD_EXPORT_ALIAS(netdev_ifconfig, ifconfig, list the information of all netw
#endif /* NETDEV_USING_IFCONFIG */
#ifdef NETDEV_USING_PING
int netdev_cmd_ping(char* target_name, rt_uint32_t times, rt_size_t size)
int netdev_cmd_ping(char* target_name, char *netdev_name, rt_uint32_t times, rt_size_t size)
{
#define NETDEV_PING_DATA_SIZE 32
/** ping receive timeout - in milliseconds */
@ -1073,6 +1073,16 @@ int netdev_cmd_ping(char* target_name, rt_uint32_t times, rt_size_t size)
size = NETDEV_PING_DATA_SIZE;
}
if (netdev_name != RT_NULL)
{
netdev = netdev_get_by_name(netdev_name);
if (netdev == RT_NULL)
{
netdev = netdev_default;
rt_kprintf("ping: not found specified netif, using default netdev %s.\n", netdev->name);
}
}
if (NETDEV_PING_IS_COMMONICABLE(netdev_default))
{
/* using default network interface device for ping */
@ -1146,9 +1156,13 @@ int netdev_ping(int argc, char **argv)
{
rt_kprintf("Please input: ping <host address>\n");
}
else
else if (argc == 2)
{
netdev_cmd_ping(argv[1], 4, 0);
netdev_cmd_ping(argv[1], RT_NULL, 4, 0);
}
else if (argc == 3)
{
netdev_cmd_ping(argv[1], argv[2], 4, 0);
}
return 0;