diff options
| -rw-r--r-- | samples/bpf/xdp_router_ipv4_user.c | 17 |
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"); |