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examples: open first interface automatically

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This commit is contained in:
Oleg Hahm 2016-07-19 20:35:14 +02:00
parent 8ebdf39d14
commit 99e3a22d63
2 changed files with 18 additions and 13 deletions
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17
examples/ccn-lite-relay/README.md
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@ -8,14 +8,6 @@ use only one packet format, `ndn2013`, and only relay over the link-layer
## The shell commands
RIOT provides three shell to interact with the CCN-Lite stack:
* `ccnl_open` - opens and configures a network device to be used for CCN-Lite.
It expects one parameter specifying the PID of the network
device. (You can figure out the PID of your network device(s)
by calling `ifconfig`.) In this example, this should always be
3, hence, calling `ccnl_open 3` should work. (If you specify an
incorrect ID, you should get an error message.) You have to
call this command, before you can actually send or receive
anything.
* `ccnl_int` - generates and sends out an Interest. The command expects one
mandatory and one optional parameter. The first parameter
specifies the exact name (or a prefix) to request, the second
@ -51,13 +43,12 @@ An example usage of this application could be setup like this:
windows.
3. Call `make -B clean all term` in the first terminal and `PORT=tap1 make
term` in the second one.
4. Enter `ccnl_open 3` in both terminals.
5. Enter `ccnl_cont /riot/peter/schmerzl Hello World! Hello RIOT!` on the first
4. Enter `ccnl_cont /riot/peter/schmerzl Hello World! Hello RIOT!` on the first
terminal.
6. Add a FIB entry for this prefix on the second node, e.g. using the broadcast
5. Add a FIB entry for this prefix on the second node, e.g. using the broadcast
address: `ccnl_fib add /riot/peter/schmerzl ff:ff:ff:ff:ff:ff`
7. Enter `ccnl_int /riot/peter/schmerzl` in the second terminal.
8. See the content being displayed. Be happy!
6. Enter `ccnl_int /riot/peter/schmerzl` in the second terminal.
7. See the content being displayed. Be happy!
## Makefile configuration

14
examples/ccn-lite-relay/main.c
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@ -24,6 +24,7 @@
#include "msg.h"
#include "shell.h"
#include "ccn-lite-riot.h"
#include "net/gnrc/netif.h"
/* main thread's message queue */
#define MAIN_QUEUE_SIZE (8)
@ -42,6 +43,19 @@ int main(void)
ccnl_core_init();
ccnl_start();
/* get the default interface */
kernel_pid_t ifs[GNRC_NETIF_NUMOF];
size_t ifnum = gnrc_netif_get(ifs);
/* set the relay's PID, configure the interface to interface to use CCN
* nettype */
if ((ifnum <= 0) || (ccnl_open_netif(ifs[0], GNRC_NETTYPE_CCN) < 0)) {
puts("Error registering at network interface!");
return -1;
}
char line_buf[SHELL_DEFAULT_BUFSIZE];
shell_run(NULL, line_buf, SHELL_DEFAULT_BUFSIZE);
return 0;