aboutsummaryrefslogtreecommitdiff
path: root/samples/bpf/xdp_tx_iptunnel_user.c
diff options
context:
space:
mode:
Diffstat (limited to 'samples/bpf/xdp_tx_iptunnel_user.c')
-rw-r--r--samples/bpf/xdp_tx_iptunnel_user.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/samples/bpf/xdp_tx_iptunnel_user.c b/samples/bpf/xdp_tx_iptunnel_user.c
index 394896430712..dfb68582e243 100644
--- a/samples/bpf/xdp_tx_iptunnel_user.c
+++ b/samples/bpf/xdp_tx_iptunnel_user.c
@@ -9,6 +9,7 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <net/if.h>
#include <sys/resource.h>
#include <arpa/inet.h>
#include <netinet/ether.h>
@@ -83,7 +84,7 @@ static void usage(const char *cmd)
"in an IPv4/v6 header and XDP_TX it out. The dst <VIP:PORT>\n"
"is used to select packets to encapsulate\n\n");
printf("Usage: %s [...]\n", cmd);
- printf(" -i <ifindex> Interface Index\n");
+ printf(" -i <ifname|ifindex> Interface\n");
printf(" -a <vip-service-address> IPv4 or IPv6\n");
printf(" -p <vip-service-port> A port range (e.g. 433-444) is also allowed\n");
printf(" -s <source-ip> Used in the IPTunnel header\n");
@@ -181,7 +182,9 @@ int main(int argc, char **argv)
switch (opt) {
case 'i':
- ifindex = atoi(optarg);
+ ifindex = if_nametoindex(optarg);
+ if (!ifindex)
+ ifindex = atoi(optarg);
break;
case 'a':
vip.family = parse_ipstr(optarg, vip.daddr.v6);
@@ -253,6 +256,11 @@ int main(int argc, char **argv)
return 1;
}
+ if (!ifindex) {
+ fprintf(stderr, "Invalid ifname\n");
+ return 1;
+ }
+
snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
prog_load_attr.file = filename;