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authorDaniel T. Lee <danieltimlee@gmail.com>2019-06-25 09:55:36 +0900
committerDaniel Borkmann <daniel@iogearbox.net>2019-06-26 15:39:15 +0200
commit9e859e8f199d4ab15ed418f7d17735c77619d14f (patch)
treef34d75c6853c4d0f6e968f6792710c5f74217821 /samples
parent9db1ff0a415c7de8eb67df5b2c56ac409ccefc37 (diff)
downloadlinux-stericsson-9e859e8f199d4ab15ed418f7d17735c77619d14f.tar.gz
samples: bpf: make the use of xdp samples consistent
Currently, each xdp samples are inconsistent in the use. Most of the samples fetch the interface with it's name. (ex. xdp1, xdp2skb, xdp_redirect_cpu, xdp_sample_pkts, etc.) But some of the xdp samples are fetching the interface with ifindex by command argument. This commit enables xdp samples to fetch interface with it's name without changing the original index interface fetching. (<ifname|ifindex> fetching in the same way as xdp_sample_pkts_user.c does.) Signed-off-by: Daniel T. Lee <danieltimlee@gmail.com> Acked-by: Toke Høiland-Jørgensen <toke@redhat.com> Acked-by: Jesper Dangaard Brouer <brouer@redhat.com> Acked-by: Song Liu <songliubraving@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'samples')
-rw-r--r--samples/bpf/xdp_adjust_tail_user.c12
-rw-r--r--samples/bpf/xdp_redirect_map_user.c15
-rw-r--r--samples/bpf/xdp_redirect_user.c15
-rw-r--r--samples/bpf/xdp_tx_iptunnel_user.c12
4 files changed, 42 insertions, 12 deletions
diff --git a/samples/bpf/xdp_adjust_tail_user.c b/samples/bpf/xdp_adjust_tail_user.c
index 586ff751aba9..a3596b617c4c 100644
--- a/samples/bpf/xdp_adjust_tail_user.c
+++ b/samples/bpf/xdp_adjust_tail_user.c
@@ -13,6 +13,7 @@
#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>
@@ -69,7 +70,7 @@ static void usage(const char *cmd)
printf("Start a XDP prog which send ICMP \"packet too big\" \n"
"messages if ingress packet is bigger then MAX_SIZE bytes\n");
printf("Usage: %s [...]\n", cmd);
- printf(" -i <ifindex> Interface Index\n");
+ printf(" -i <ifname|ifindex> Interface\n");
printf(" -T <stop-after-X-seconds> Default: 0 (forever)\n");
printf(" -S use skb-mode\n");
printf(" -N enforce native mode\n");
@@ -102,7 +103,9 @@ int main(int argc, char **argv)
switch (opt) {
case 'i':
- ifindex = atoi(optarg);
+ ifindex = if_nametoindex(optarg);
+ if (!ifindex)
+ ifindex = atoi(optarg);
break;
case 'T':
kill_after_s = atoi(optarg);
@@ -136,6 +139,11 @@ 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;
diff --git a/samples/bpf/xdp_redirect_map_user.c b/samples/bpf/xdp_redirect_map_user.c
index 15bb6f67f9c3..f70ee33907fd 100644
--- a/samples/bpf/xdp_redirect_map_user.c
+++ b/samples/bpf/xdp_redirect_map_user.c
@@ -10,6 +10,7 @@
#include <stdlib.h>
#include <stdbool.h>
#include <string.h>
+#include <net/if.h>
#include <unistd.h>
#include <libgen.h>
#include <sys/resource.h>
@@ -85,7 +86,7 @@ static void poll_stats(int interval, int ifindex)
static void usage(const char *prog)
{
fprintf(stderr,
- "usage: %s [OPTS] IFINDEX_IN IFINDEX_OUT\n\n"
+ "usage: %s [OPTS] <IFNAME|IFINDEX>_IN <IFNAME|IFINDEX>_OUT\n\n"
"OPTS:\n"
" -S use skb-mode\n"
" -N enforce native mode\n"
@@ -127,7 +128,7 @@ int main(int argc, char **argv)
}
if (optind == argc) {
- printf("usage: %s IFINDEX_IN IFINDEX_OUT\n", argv[0]);
+ printf("usage: %s <IFNAME|IFINDEX>_IN <IFNAME|IFINDEX>_OUT\n", argv[0]);
return 1;
}
@@ -136,8 +137,14 @@ int main(int argc, char **argv)
return 1;
}
- ifindex_in = strtoul(argv[optind], NULL, 0);
- ifindex_out = strtoul(argv[optind + 1], NULL, 0);
+ ifindex_in = if_nametoindex(argv[optind]);
+ if (!ifindex_in)
+ ifindex_in = strtoul(argv[optind], NULL, 0);
+
+ ifindex_out = if_nametoindex(argv[optind + 1]);
+ if (!ifindex_out)
+ ifindex_out = strtoul(argv[optind + 1], NULL, 0);
+
printf("input: %d output: %d\n", ifindex_in, ifindex_out);
snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
diff --git a/samples/bpf/xdp_redirect_user.c b/samples/bpf/xdp_redirect_user.c
index ce71be187205..39de06f3ec25 100644
--- a/samples/bpf/xdp_redirect_user.c
+++ b/samples/bpf/xdp_redirect_user.c
@@ -10,6 +10,7 @@
#include <stdlib.h>
#include <stdbool.h>
#include <string.h>
+#include <net/if.h>
#include <unistd.h>
#include <libgen.h>
#include <sys/resource.h>
@@ -85,7 +86,7 @@ static void poll_stats(int interval, int ifindex)
static void usage(const char *prog)
{
fprintf(stderr,
- "usage: %s [OPTS] IFINDEX_IN IFINDEX_OUT\n\n"
+ "usage: %s [OPTS] <IFNAME|IFINDEX>_IN <IFNAME|IFINDEX>_OUT\n\n"
"OPTS:\n"
" -S use skb-mode\n"
" -N enforce native mode\n"
@@ -128,7 +129,7 @@ int main(int argc, char **argv)
}
if (optind == argc) {
- printf("usage: %s IFINDEX_IN IFINDEX_OUT\n", argv[0]);
+ printf("usage: %s <IFNAME|IFINDEX>_IN <IFNAME|IFINDEX>_OUT\n", argv[0]);
return 1;
}
@@ -137,8 +138,14 @@ int main(int argc, char **argv)
return 1;
}
- ifindex_in = strtoul(argv[optind], NULL, 0);
- ifindex_out = strtoul(argv[optind + 1], NULL, 0);
+ ifindex_in = if_nametoindex(argv[optind]);
+ if (!ifindex_in)
+ ifindex_in = strtoul(argv[optind], NULL, 0);
+
+ ifindex_out = if_nametoindex(argv[optind + 1]);
+ if (!ifindex_out)
+ ifindex_out = strtoul(argv[optind + 1], NULL, 0);
+
printf("input: %d output: %d\n", ifindex_in, ifindex_out);
snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
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;