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-rw-r--r--tools/lib/bpf/bpf.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c
index bf2772566240..9c88f6e4156d 100644
--- a/tools/lib/bpf/bpf.c
+++ b/tools/lib/bpf/bpf.c
@@ -32,6 +32,10 @@
#include <sys/socket.h>
#include <errno.h>
+#ifndef SOL_NETLINK
+#define SOL_NETLINK 270
+#endif
+
/*
* When building perf, unistd.h is overridden. __NR_bpf is
* required to be defined explicitly.
@@ -436,6 +440,7 @@ int bpf_set_link_xdp_fd(int ifindex, int fd, __u32 flags)
struct nlmsghdr *nh;
struct nlmsgerr *err;
socklen_t addrlen;
+ int one = 1;
memset(&sa, 0, sizeof(sa));
sa.nl_family = AF_NETLINK;
@@ -445,6 +450,11 @@ int bpf_set_link_xdp_fd(int ifindex, int fd, __u32 flags)
return -errno;
}
+ if (setsockopt(sock, SOL_NETLINK, NETLINK_EXT_ACK,
+ &one, sizeof(one)) < 0) {
+ fprintf(stderr, "Netlink error reporting not supported\n");
+ }
+
if (bind(sock, (struct sockaddr *)&sa, sizeof(sa)) < 0) {
ret = -errno;
goto cleanup;
@@ -521,6 +531,7 @@ int bpf_set_link_xdp_fd(int ifindex, int fd, __u32 flags)
if (!err->error)
continue;
ret = err->error;
+ nla_dump_errormsg(nh);
goto cleanup;
case NLMSG_DONE:
break;