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-rw-r--r--samples/bpf/xdp_router_ipv4_user.c17
1 files changed, 14 insertions, 3 deletions
diff --git a/samples/bpf/xdp_router_ipv4_user.c b/samples/bpf/xdp_router_ipv4_user.c
index 3e9db5a8c8c6..cfaf7e50e431 100644
--- a/samples/bpf/xdp_router_ipv4_user.c
+++ b/samples/bpf/xdp_router_ipv4_user.c
@@ -397,8 +397,12 @@ static void read_arp(struct nlmsghdr *nh, int nll)
if (nh->nlmsg_type == RTM_GETNEIGH)
printf("READING arp entry\n");
- printf("Address\tHwAddress\n");
+ printf("Address HwAddress\n");
for (; NLMSG_OK(nh, nll); nh = NLMSG_NEXT(nh, nll)) {
+ struct in_addr dst_addr;
+ char mac_str[18];
+ int len = 0, i;
+
rt_msg = (struct ndmsg *)NLMSG_DATA(nh);
rt_attr = (struct rtattr *)RTM_RTA(rt_msg);
ndm_family = rt_msg->ndm_family;
@@ -419,7 +423,14 @@ static void read_arp(struct nlmsghdr *nh, int nll)
}
arp_entry.dst = atoi(dsts);
arp_entry.mac = atol(mac);
- printf("%x\t\t%llx\n", arp_entry.dst, arp_entry.mac);
+
+ dst_addr.s_addr = arp_entry.dst;
+ for (i = 0; i < 6; i++)
+ len += snprintf(mac_str + len, 18 - len, "%02llx%s",
+ ((arp_entry.mac >> i * 8) & 0xff),
+ i < 5 ? ":" : "");
+ printf("%-16s%s\n", inet_ntoa(dst_addr), mac_str);
+
if (ndm_family == AF_INET) {
if (bpf_map_lookup_elem(exact_match_map_fd,
&arp_entry.dst,
@@ -728,7 +739,7 @@ int main(int ac, char **argv)
printf("\n*******************ROUTE TABLE*************************\n");
get_route_table(AF_INET);
- printf("*******************ARP TABLE***************************\n\n\n");
+ printf("\n*******************ARP TABLE***************************\n");
get_arp_table(AF_INET);
if (monitor_route() < 0) {
printf("Error in receiving route update");