From ee0f64bf36a05ae5bae1e2ea0ccceaa0a55e78f6 Mon Sep 17 00:00:00 2001
From: Oleg Hahm <oleg@hobbykeller.org>
Date: Wed, 4 Nov 2015 17:15:34 +0900
Subject: [PATCH] shell netif: support setting the IPv6 hop limit
---
sys/shell/commands/sc_netif.c | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
diff --git a/sys/shell/commands/sc_netif.c b/sys/shell/commands/sc_netif.c
index 9e54b4e446..527d878627 100644
--- a/sys/shell/commands/sc_netif.c
+++ b/sys/shell/commands/sc_netif.c
@@ -96,6 +96,11 @@ static void _mtu_usage(char *cmd_name)
printf("usage: %s <if_id> mtu <n>\n", cmd_name);
}
+static void _hl_usage(char *cmd_name)
+{
+ printf("usage: %s <if_id> hl <n>\n", cmd_name);
+}
+
static void _flag_usage(char *cmd_name)
{
printf("usage: %s <if_id> [-]{promisc|autoack|csma|autocca|preload|iphc}\n", cmd_name);
@@ -310,10 +315,12 @@ static void _netif_list(kernel_pid_t dev)
#ifdef MODULE_GNRC_IPV6_NETIF
if (entry != NULL) {
printf("MTU:%" PRIu16 " ", entry->mtu);
+ printf("HL:%" PRIu8 " ", entry->cur_hl);
if (entry->flags & GNRC_IPV6_NETIF_FLAGS_SIXLOWPAN) {
printf("6LO ");
}
linebreak = true;
+
}
#endif
@@ -875,6 +882,29 @@ int _netif_config(int argc, char **argv)
return _netif_mtu((kernel_pid_t)dev, argv[3]);
}
+#ifdef MODULE_GNRC_IPV6_NETIF
+ else if (strcmp(argv[2], "hl") == 0) {
+ if (argc < 4) {
+ _hl_usage(argv[0]);
+ return 1;
+ }
+ int hl;
+ gnrc_ipv6_netif_t *entry;
+ if (((hl = atoi(argv[3])) < 0) || (hl > UINT8_MAX)) {
+ printf("error: Hop limit must be between %" PRIu16 " and %" PRIu16 "\n",
+ 0, UINT16_MAX);
+ return 1;
+ }
+ if ((entry = gnrc_ipv6_netif_get(dev)) == NULL) {
+ puts("error: unable to set hop limit.");
+ return 1;
+ }
+ entry->cur_hl = hl;
+ printf("success: set hop limit %u interface %" PRIkernel_pid "\n", hl, dev);
+
+ return 0;
+ }
+#endif
else {
return _netif_flag(argv[0], dev, argv[2]);
}
@@ -888,6 +918,7 @@ int _netif_config(int argc, char **argv)
printf("usage: %s [<if_id>]\n", argv[0]);
_set_usage(argv[0]);
_mtu_usage(argv[0]);
+ _hl_usage(argv[0]);
_flag_usage(argv[0]);
_add_usage(argv[0]);
_del_usage(argv[0]);
--
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