+bool system_is_default_rt_table(unsigned int id)
+{
+ return (id == RT_TABLE_MAIN);
+}
+
+static int system_iprule(struct iprule *rule, int cmd)
+{
+ int alen = ((rule->flags & IPRULE_FAMILY) == IPRULE_INET4) ? 4 : 16;
+
+ struct nl_msg *msg;
+ struct rtmsg rtm = {
+ .rtm_family = (alen == 4) ? AF_INET : AF_INET6,
+ .rtm_protocol = RTPROT_STATIC,
+ .rtm_scope = RT_SCOPE_UNIVERSE,
+ .rtm_table = RT_TABLE_UNSPEC,
+ .rtm_type = RTN_UNSPEC,
+ .rtm_flags = 0,
+ };
+
+ if (cmd == RTM_NEWRULE) {
+ rtm.rtm_type = RTN_UNICAST;
+ rtm.rtm_flags |= NLM_F_REPLACE | NLM_F_EXCL;
+ }
+
+ if (rule->invert)
+ rtm.rtm_flags |= FIB_RULE_INVERT;
+
+ if (rule->flags & IPRULE_SRC)
+ rtm.rtm_src_len = rule->src_mask;
+
+ if (rule->flags & IPRULE_DEST)
+ rtm.rtm_dst_len = rule->dest_mask;
+
+ if (rule->flags & IPRULE_TOS)
+ rtm.rtm_tos = rule->tos;
+
+ if (rule->flags & IPRULE_LOOKUP) {
+ if (rule->lookup < 256)
+ rtm.rtm_table = rule->lookup;
+ }
+
+ if (rule->flags & IPRULE_ACTION)
+ rtm.rtm_type = rule->action;
+ else if (rule->flags & IPRULE_GOTO)
+ rtm.rtm_type = FR_ACT_GOTO;
+ else if (!(rule->flags & (IPRULE_LOOKUP | IPRULE_ACTION | IPRULE_GOTO)))
+ rtm.rtm_type = FR_ACT_NOP;
+
+ msg = nlmsg_alloc_simple(cmd, NLM_F_REQUEST);
+
+ if (!msg)
+ return -1;
+
+ nlmsg_append(msg, &rtm, sizeof(rtm), 0);
+
+ if (rule->flags & IPRULE_IN)
+ nla_put(msg, FRA_IFNAME, strlen(rule->in_dev) + 1, rule->in_dev);
+
+ if (rule->flags & IPRULE_OUT)
+ nla_put(msg, FRA_OIFNAME, strlen(rule->out_dev) + 1, rule->out_dev);
+
+ if (rule->flags & IPRULE_SRC)
+ nla_put(msg, FRA_SRC, alen, &rule->src_addr);
+
+ if (rule->flags & IPRULE_DEST)
+ nla_put(msg, FRA_DST, alen, &rule->dest_addr);
+
+ if (rule->flags & IPRULE_PRIORITY)
+ nla_put_u32(msg, FRA_PRIORITY, rule->priority);
+ else if (cmd == RTM_NEWRULE)
+ nla_put_u32(msg, FRA_PRIORITY, rule->order);
+
+ if (rule->flags & IPRULE_FWMARK)
+ nla_put_u32(msg, FRA_FWMARK, rule->fwmark);
+
+ if (rule->flags & IPRULE_FWMASK)
+ nla_put_u32(msg, FRA_FWMASK, rule->fwmask);
+
+ if (rule->flags & IPRULE_LOOKUP) {
+ if (rule->lookup >= 256)
+ nla_put_u32(msg, FRA_TABLE, rule->lookup);
+ }
+
+ if (rule->flags & IPRULE_GOTO)
+ nla_put_u32(msg, FRA_GOTO, rule->gotoid);
+
+ return system_rtnl_call(msg);
+}
+
+int system_add_iprule(struct iprule *rule)
+{
+ return system_iprule(rule, RTM_NEWRULE);
+}
+
+int system_del_iprule(struct iprule *rule)
+{
+ return system_iprule(rule, RTM_DELRULE);
+}
+
+int system_flush_iprules(void)
+{
+ int rv = 0;
+ struct iprule rule;
+
+ system_if_clear_entries(NULL, RTM_GETRULE, AF_INET);
+ system_if_clear_entries(NULL, RTM_GETRULE, AF_INET6);
+
+ memset(&rule, 0, sizeof(rule));
+
+
+ rule.flags = IPRULE_INET4 | IPRULE_PRIORITY | IPRULE_LOOKUP;
+
+ rule.priority = 0;
+ rule.lookup = RT_TABLE_LOCAL;
+ rv |= system_iprule(&rule, RTM_NEWRULE);
+
+ rule.priority = 32766;
+ rule.lookup = RT_TABLE_MAIN;
+ rv |= system_iprule(&rule, RTM_NEWRULE);
+
+ rule.priority = 32767;
+ rule.lookup = RT_TABLE_DEFAULT;
+ rv |= system_iprule(&rule, RTM_NEWRULE);
+
+
+ rule.flags = IPRULE_INET6 | IPRULE_PRIORITY | IPRULE_LOOKUP;
+
+ rule.priority = 0;
+ rule.lookup = RT_TABLE_LOCAL;
+ rv |= system_iprule(&rule, RTM_NEWRULE);
+
+ rule.priority = 32766;
+ rule.lookup = RT_TABLE_MAIN;
+ rv |= system_iprule(&rule, RTM_NEWRULE);
+
+ return rv;
+}
+
+bool system_resolve_iprule_action(const char *action, unsigned int *id)
+{
+ return system_rtn_aton(action, id);
+}
+