Simplify ipset external checks and optionally initialize ispet name from external...

[project/firewall3.git] / ipsets.c

diff --git a/ipsets.c b/ipsets.c
index eb37d0a..b63db21 100644 (file)
--- a/ipsets.c
+++ b/ipsets.c
@@ -91,15 +91,6 @@ check_types(struct uci_element *e, struct fw3_ipset *ipset)
        uint32_t typelist = 0;
        struct fw3_ipset_datatype *type;
 
-       const char *methods[] = {
-               "(bug)",
-               "bitmap",
-               "hash",
-               "list",
-       };
-
-       typelist = 0;
-
        list_for_each_entry(type, &ipset->datatypes, list)
        {
                if (i >= 3)
@@ -121,7 +112,7 @@ check_types(struct uci_element *e, struct fw3_ipset *ipset)
                                ipset->method = ipset_types[i].method;
 
                                warn_elem(e, "defines no storage method, assuming '%s'",
-                                         methods[ipset->method]);
+                                         fw3_ipset_method_names[ipset->method]);
 
                                break;
                        }
@@ -135,7 +126,7 @@ check_types(struct uci_element *e, struct fw3_ipset *ipset)
                if (ipset_types[i].method == ipset->method &&
                    ipset_types[i].types == typelist)
                {
-                       if (!ipset->external || !*ipset->external)
+                       if (!ipset->external)
                        {
                                if ((ipset_types[i].required & OPT_IPRANGE) &&
                                        !ipset->iprange.set)
@@ -247,6 +238,14 @@ fw3_load_ipsets(struct fw3_state *state, struct uci_package *p)
 
                fw3_parse_options(ipset, fw3_ipset_opts, s);
 
+               if (ipset->external)
+               {
+                       if (!*ipset->external)
+                               ipset->external = NULL;
+                       else if (!ipset->name)
+                               ipset->name = ipset->external;
+               }
+
                if (!ipset->name || !*ipset->name)
                {
                        warn_elem(e, "must have a name assigned");
@@ -277,33 +276,17 @@ create_ipset(struct fw3_ipset *ipset, struct fw3_state *state)
 
        struct fw3_ipset_datatype *type;
 
-       const char *methods[] = {
-               "(bug)",
-               "bitmap",
-               "hash",
-               "list",
-       };
-
-       const char *types[] = {
-               "(bug)",
-               "ip",
-               "port",
-               "mac",
-               "net",
-               "set",
-       };
-
-       if (ipset->external && *ipset->external)
+       if (ipset->external)
                return;
 
        info(" * Creating ipset %s", ipset->name);
 
        first = true;
-       fw3_pr("create %s %s", ipset->name, methods[ipset->method]);
+       fw3_pr("create %s %s", ipset->name, fw3_ipset_method_names[ipset->method]);
 
        list_for_each_entry(type, &ipset->datatypes, list)
        {
-               fw3_pr("%c%s", first ? ':' : ',', types[type->type]);
+               fw3_pr("%c%s", first ? ':' : ',', fw3_ipset_type_names[type->type]);
                first = false;
        }
 
@@ -383,3 +366,40 @@ fw3_lookup_ipset(struct fw3_state *state, const char *name)
 
        return NULL;
 }
+
+bool
+fw3_check_ipset(struct fw3_ipset *set)
+{
+       bool rv = false;
+
+       socklen_t sz;
+       int s = socket(AF_INET, SOCK_RAW, IPPROTO_RAW);
+       struct ip_set_req_version req_ver;
+       struct ip_set_req_get_set req_name;
+
+       if (s < 0 || fcntl(s, F_SETFD, FD_CLOEXEC))
+               goto out;
+
+       sz = sizeof(req_ver);
+       req_ver.op = IP_SET_OP_VERSION;
+
+       if (getsockopt(s, SOL_IP, SO_IP_SET, &req_ver, &sz))
+               goto out;
+
+       sz = sizeof(req_name);
+       req_name.op = IP_SET_OP_GET_BYNAME;
+       req_name.version = req_ver.version;
+       snprintf(req_name.set.name, IPSET_MAXNAMELEN - 1, "%s",
+                set->external ? set->external : set->name);
+
+       if (getsockopt(s, SOL_IP, SO_IP_SET, &req_name, &sz))
+               goto out;
+
+       rv = ((sz == sizeof(req_name)) && (req_name.set.index != IPSET_INVALID_ID));
+
+out:
+       if (s >= 0)
+               close(s);
+
+       return rv;
+}