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-rw-r--r--xtables.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/xtables.c b/xtables.c
index 6107119f..3cc864b2 100644
--- a/xtables.c
+++ b/xtables.c
@@ -411,6 +411,15 @@ static int compatible_revision(const char *name, u_int8_t revision, int opt)
sockfd = socket(afinfo.family, SOCK_RAW, IPPROTO_RAW);
if (sockfd < 0) {
+ if (errno == EPERM) {
+ /* revision 0 is always supported. */
+ if (revision != 0)
+ fprintf(stderr, "Could not determine whether "
+ "revision %u is supported, "
+ "assuming it is.\n",
+ revision);
+ return 1;
+ }
fprintf(stderr, "Could not open socket to kernel: %s\n",
strerror(errno));
exit(1);