diff options
Diffstat (limited to 'xtables.c')
| -rw-r--r-- | xtables.c | 17 |
1 files changed, 17 insertions, 0 deletions
@@ -730,6 +730,17 @@ static int compatible_target_revision(const char *name, uint8_t revision) return compatible_revision(name, revision, afinfo->so_rev_target); } +static void xtables_check_options(const char *name, const struct option *opt) +{ + for (; opt->name != NULL; ++opt) + if (opt->val < 0 || opt->val >= XT_OPTION_OFFSET_SCALE) { + fprintf(stderr, "%s: Extension %s uses invalid " + "option value %d\n",xt_params->program_name, + name, opt->val); + exit(1); + } +} + void xtables_register_match(struct xtables_match *me) { struct xtables_match **i, *old; @@ -760,6 +771,9 @@ void xtables_register_match(struct xtables_match *me) exit(1); } + if (me->extra_opts != NULL) + xtables_check_options(me->name, me->extra_opts); + /* ignore not interested match */ if (me->family != afinfo->family && me->family != AF_UNSPEC) return; @@ -845,6 +859,9 @@ void xtables_register_target(struct xtables_target *me) exit(1); } + if (me->extra_opts != NULL) + xtables_check_options(me->name, me->extra_opts); + /* ignore not interested target */ if (me->family != afinfo->family && me->family != AF_UNSPEC) return; |