./move.sh

1 files changed, 865 insertions, 0 deletions

diff --git a/src/grp-network/networkd-route.c b/src/grp-network/networkd-route.c
new file mode 100644
index 0000000000..f001de772a
--- /dev/null
+++ b/src/grp-network/networkd-route.c
@@ -0,0 +1,865 @@
+/***
+  This file is part of systemd.
+
+  Copyright 2013 Tom Gundersen <teg@jklm.no>
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include "alloc-util.h"
+#include "conf-parser.h"
+#include "in-addr-util.h"
+#include "netlink-util.h"
+#include "networkd-route.h"
+#include "networkd.h"
+#include "parse-util.h"
+#include "set.h"
+#include "string-util.h"
+#include "util.h"
+
+int route_new(Route **ret) {
+        _cleanup_route_free_ Route *route = NULL;
+
+        route = new0(Route, 1);
+        if (!route)
+                return -ENOMEM;
+
+        route->family = AF_UNSPEC;
+        route->scope = RT_SCOPE_UNIVERSE;
+        route->protocol = RTPROT_UNSPEC;
+        route->table = RT_TABLE_DEFAULT;
+        route->lifetime = USEC_INFINITY;
+
+        *ret = route;
+        route = NULL;
+
+        return 0;
+}
+
+int route_new_static(Network *network, unsigned section, Route **ret) {
+        _cleanup_route_free_ Route *route = NULL;
+        int r;
+
+        if (section) {
+                route = hashmap_get(network->routes_by_section, UINT_TO_PTR(section));
+                if (route) {
+                        *ret = route;
+                        route = NULL;
+
+                        return 0;
+                }
+        }
+
+        r = route_new(&route);
+        if (r < 0)
+                return r;
+
+        route->protocol = RTPROT_STATIC;
+
+        if (section) {
+                route->section = section;
+
+                r = hashmap_put(network->routes_by_section, UINT_TO_PTR(route->section), route);
+                if (r < 0)
+                        return r;
+        }
+
+        route->network = network;
+        LIST_PREPEND(routes, network->static_routes, route);
+
+        *ret = route;
+        route = NULL;
+
+        return 0;
+}
+
+void route_free(Route *route) {
+        if (!route)
+                return;
+
+        if (route->network) {
+                LIST_REMOVE(routes, route->network->static_routes, route);
+
+                if (route->section)
+                        hashmap_remove(route->network->routes_by_section,
+                                       UINT_TO_PTR(route->section));
+        }
+
+        if (route->link) {
+                set_remove(route->link->routes, route);
+                set_remove(route->link->routes_foreign, route);
+        }
+
+        sd_event_source_unref(route->expire);
+
+        free(route);
+}
+
+static void route_hash_func(const void *b, struct siphash *state) {
+        const Route *route = b;
+
+        assert(route);
+
+        siphash24_compress(&route->family, sizeof(route->family), state);
+
+        switch (route->family) {
+        case AF_INET:
+        case AF_INET6:
+                /* Equality of routes are given by the 4-touple
+                   (dst_prefix,dst_prefixlen,tos,priority,table) */
+                siphash24_compress(&route->dst, FAMILY_ADDRESS_SIZE(route->family), state);
+                siphash24_compress(&route->dst_prefixlen, sizeof(route->dst_prefixlen), state);
+                siphash24_compress(&route->tos, sizeof(route->tos), state);
+                siphash24_compress(&route->priority, sizeof(route->priority), state);
+                siphash24_compress(&route->table, sizeof(route->table), state);
+
+                break;
+        default:
+                /* treat any other address family as AF_UNSPEC */
+                break;
+        }
+}
+
+static int route_compare_func(const void *_a, const void *_b) {
+        const Route *a = _a, *b = _b;
+
+        if (a->family < b->family)
+                return -1;
+        if (a->family > b->family)
+                return 1;
+
+        switch (a->family) {
+        case AF_INET:
+        case AF_INET6:
+                if (a->dst_prefixlen < b->dst_prefixlen)
+                        return -1;
+                if (a->dst_prefixlen > b->dst_prefixlen)
+                        return 1;
+
+                if (a->tos < b->tos)
+                        return -1;
+                if (a->tos > b->tos)
+                        return 1;
+
+                if (a->priority < b->priority)
+                        return -1;
+                if (a->priority > b->priority)
+                        return 1;
+
+                if (a->table < b->table)
+                        return -1;
+                if (a->table > b->table)
+                        return 1;
+
+                return memcmp(&a->dst, &b->dst, FAMILY_ADDRESS_SIZE(a->family));
+        default:
+                /* treat any other address family as AF_UNSPEC */
+                return 0;
+        }
+}
+
+static const struct hash_ops route_hash_ops = {
+        .hash = route_hash_func,
+        .compare = route_compare_func
+};
+
+int route_get(Link *link,
+              int family,
+              union in_addr_union *dst,
+              unsigned char dst_prefixlen,
+              unsigned char tos,
+              uint32_t priority,
+              unsigned char table,
+              Route **ret) {
+        Route route = {
+                .family = family,
+                .dst_prefixlen = dst_prefixlen,
+                .tos = tos,
+                .priority = priority,
+                .table = table,
+        }, *existing;
+
+        assert(link);
+        assert(dst);
+        assert(ret);
+
+        route.dst = *dst;
+
+        existing = set_get(link->routes, &route);
+        if (existing) {
+                *ret = existing;
+                return 1;
+        } else {
+                existing = set_get(link->routes_foreign, &route);
+                if (!existing)
+                        return -ENOENT;
+        }
+
+        *ret = existing;
+
+        return 0;
+}
+
+static int route_add_internal(Link *link, Set **routes,
+                              int family,
+                              union in_addr_union *dst,
+                              unsigned char dst_prefixlen,
+                              unsigned char tos,
+                              uint32_t priority,
+                              unsigned char table, Route **ret) {
+        _cleanup_route_free_ Route *route = NULL;
+        int r;
+
+        assert(link);
+        assert(routes);
+        assert(dst);
+
+        r = route_new(&route);
+        if (r < 0)
+                return r;
+
+        route->family = family;
+        route->dst = *dst;
+        route->dst_prefixlen = dst_prefixlen;
+        route->tos = tos;
+        route->priority = priority;
+        route->table = table;
+
+        r = set_ensure_allocated(routes, &route_hash_ops);
+        if (r < 0)
+                return r;
+
+        r = set_put(*routes, route);
+        if (r < 0)
+                return r;
+
+        route->link = link;
+
+        if (ret)
+                *ret = route;
+
+        route = NULL;
+
+        return 0;
+}
+
+int route_add_foreign(Link *link,
+                      int family,
+                      union in_addr_union *dst,
+                      unsigned char dst_prefixlen,
+                      unsigned char tos,
+                      uint32_t priority,
+                      unsigned char table, Route **ret) {
+        return route_add_internal(link, &link->routes_foreign, family, dst, dst_prefixlen, tos, priority, table, ret);
+}
+
+int route_add(Link *link,
+              int family,
+              union in_addr_union *dst,
+              unsigned char dst_prefixlen,
+              unsigned char tos,
+              uint32_t priority,
+              unsigned char table, Route **ret) {
+        Route *route;
+        int r;
+
+        r = route_get(link, family, dst, dst_prefixlen, tos, priority, table, &route);
+        if (r == -ENOENT) {
+                /* Route does not exist, create a new one */
+                r = route_add_internal(link, &link->routes, family, dst, dst_prefixlen, tos, priority, table, &route);
+                if (r < 0)
+                        return r;
+        } else if (r == 0) {
+                /* Take over a foreign route */
+                r = set_ensure_allocated(&link->routes, &route_hash_ops);
+                if (r < 0)
+                        return r;
+
+                r = set_put(link->routes, route);
+                if (r < 0)
+                        return r;
+
+                set_remove(link->routes_foreign, route);
+        } else if (r == 1) {
+                /* Route exists, do nothing */
+                ;
+        } else
+                return r;
+
+        *ret = route;
+
+        return 0;
+}
+
+int route_update(Route *route,
+                 union in_addr_union *src,
+                 unsigned char src_prefixlen,
+                 union in_addr_union *gw,
+                 union in_addr_union *prefsrc,
+                 unsigned char scope,
+                 unsigned char protocol) {
+        assert(route);
+        assert(src);
+        assert(gw);
+        assert(prefsrc);
+
+        route->src = *src;
+        route->src_prefixlen = src_prefixlen;
+        route->gw = *gw;
+        route->prefsrc = *prefsrc;
+        route->scope = scope;
+        route->protocol = protocol;
+
+        return 0;
+}
+
+int route_remove(Route *route, Link *link,
+               sd_netlink_message_handler_t callback) {
+        _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL;
+        int r;
+
+        assert(link);
+        assert(link->manager);
+        assert(link->manager->rtnl);
+        assert(link->ifindex > 0);
+        assert(route->family == AF_INET || route->family == AF_INET6);
+
+        r = sd_rtnl_message_new_route(link->manager->rtnl, &req,
+                                      RTM_DELROUTE, route->family,
+                                      route->protocol);
+        if (r < 0)
+                return log_error_errno(r, "Could not create RTM_DELROUTE message: %m");
+
+        if (!in_addr_is_null(route->family, &route->gw)) {
+                if (route->family == AF_INET)
+                        r = sd_netlink_message_append_in_addr(req, RTA_GATEWAY, &route->gw.in);
+                else if (route->family == AF_INET6)
+                        r = sd_netlink_message_append_in6_addr(req, RTA_GATEWAY, &route->gw.in6);
+                if (r < 0)
+                        return log_error_errno(r, "Could not append RTA_GATEWAY attribute: %m");
+        }
+
+        if (route->dst_prefixlen) {
+                if (route->family == AF_INET)
+                        r = sd_netlink_message_append_in_addr(req, RTA_DST, &route->dst.in);
+                else if (route->family == AF_INET6)
+                        r = sd_netlink_message_append_in6_addr(req, RTA_DST, &route->dst.in6);
+                if (r < 0)
+                        return log_error_errno(r, "Could not append RTA_DST attribute: %m");
+
+                r = sd_rtnl_message_route_set_dst_prefixlen(req, route->dst_prefixlen);
+                if (r < 0)
+                        return log_error_errno(r, "Could not set destination prefix length: %m");
+        }
+
+        if (route->src_prefixlen) {
+                if (route->family == AF_INET)
+                        r = sd_netlink_message_append_in_addr(req, RTA_SRC, &route->src.in);
+                else if (route->family == AF_INET6)
+                        r = sd_netlink_message_append_in6_addr(req, RTA_SRC, &route->src.in6);
+                if (r < 0)
+                        return log_error_errno(r, "Could not append RTA_SRC attribute: %m");
+
+                r = sd_rtnl_message_route_set_src_prefixlen(req, route->src_prefixlen);
+                if (r < 0)
+                        return log_error_errno(r, "Could not set source prefix length: %m");
+        }
+
+        if (!in_addr_is_null(route->family, &route->prefsrc)) {
+                if (route->family == AF_INET)
+                        r = sd_netlink_message_append_in_addr(req, RTA_PREFSRC, &route->prefsrc.in);
+                else if (route->family == AF_INET6)
+                        r = sd_netlink_message_append_in6_addr(req, RTA_PREFSRC, &route->prefsrc.in6);
+                if (r < 0)
+                        return log_error_errno(r, "Could not append RTA_PREFSRC attribute: %m");
+        }
+
+        r = sd_rtnl_message_route_set_scope(req, route->scope);
+        if (r < 0)
+                return log_error_errno(r, "Could not set scope: %m");
+
+        r = sd_netlink_message_append_u32(req, RTA_PRIORITY, route->priority);
+        if (r < 0)
+                return log_error_errno(r, "Could not append RTA_PRIORITY attribute: %m");
+
+        r = sd_netlink_message_append_u32(req, RTA_OIF, link->ifindex);
+        if (r < 0)
+                return log_error_errno(r, "Could not append RTA_OIF attribute: %m");
+
+        r = sd_netlink_call_async(link->manager->rtnl, req, callback, link, 0, NULL);
+        if (r < 0)
+                return log_error_errno(r, "Could not send rtnetlink message: %m");
+
+        link_ref(link);
+
+        return 0;
+}
+
+static int route_expire_callback(sd_netlink *rtnl, sd_netlink_message *m, void *userdata) {
+        Link *link = userdata;
+        int r;
+
+        assert(rtnl);
+        assert(m);
+        assert(link);
+        assert(link->ifname);
+        assert(link->link_messages > 0);
+
+        if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
+                return 1;
+
+        link->link_messages--;
+
+        r = sd_netlink_message_get_errno(m);
+        if (r < 0 && r != -EEXIST)
+                log_link_warning_errno(link, r, "could not remove route: %m");
+
+        if (link->link_messages == 0)
+                log_link_debug(link, "route removed");
+
+        return 1;
+}
+
+int route_expire_handler(sd_event_source *s, uint64_t usec, void *userdata) {
+        Route *route = userdata;
+        int r;
+
+        assert(route);
+
+        r = route_remove(route, route->link, route_expire_callback);
+        if (r < 0)
+                log_warning_errno(r, "Could not remove route: %m");
+        else {
+                /* route may not be exist in kernel. If we fail still remove it */
+                route->link->link_messages++;
+                route_free(route);
+        }
+
+        return 1;
+}
+
+int route_configure(Route *route, Link *link,
+                    sd_netlink_message_handler_t callback) {
+        _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL;
+        _cleanup_(sd_event_source_unrefp) sd_event_source *expire = NULL;
+        usec_t lifetime;
+        int r;
+
+        assert(link);
+        assert(link->manager);
+        assert(link->manager->rtnl);
+        assert(link->ifindex > 0);
+        assert(route->family == AF_INET || route->family == AF_INET6);
+
+        r = sd_rtnl_message_new_route(link->manager->rtnl, &req,
+                                      RTM_NEWROUTE, route->family,
+                                      route->protocol);
+        if (r < 0)
+                return log_error_errno(r, "Could not create RTM_NEWROUTE message: %m");
+
+        if (!in_addr_is_null(route->family, &route->gw)) {
+                if (route->family == AF_INET)
+                        r = sd_netlink_message_append_in_addr(req, RTA_GATEWAY, &route->gw.in);
+                else if (route->family == AF_INET6)
+                        r = sd_netlink_message_append_in6_addr(req, RTA_GATEWAY, &route->gw.in6);
+                if (r < 0)
+                        return log_error_errno(r, "Could not append RTA_GATEWAY attribute: %m");
+
+                r = sd_rtnl_message_route_set_family(req, route->family);
+                if (r < 0)
+                        return log_error_errno(r, "Could not set route family: %m");
+        }
+
+        if (route->dst_prefixlen) {
+                if (route->family == AF_INET)
+                        r = sd_netlink_message_append_in_addr(req, RTA_DST, &route->dst.in);
+                else if (route->family == AF_INET6)
+                        r = sd_netlink_message_append_in6_addr(req, RTA_DST, &route->dst.in6);
+                if (r < 0)
+                        return log_error_errno(r, "Could not append RTA_DST attribute: %m");
+
+                r = sd_rtnl_message_route_set_dst_prefixlen(req, route->dst_prefixlen);
+                if (r < 0)
+                        return log_error_errno(r, "Could not set destination prefix length: %m");
+        }
+
+        if (route->src_prefixlen) {
+                if (route->family == AF_INET)
+                        r = sd_netlink_message_append_in_addr(req, RTA_SRC, &route->src.in);
+                else if (route->family == AF_INET6)
+                        r = sd_netlink_message_append_in6_addr(req, RTA_SRC, &route->src.in6);
+                if (r < 0)
+                        return log_error_errno(r, "Could not append RTA_SRC attribute: %m");
+
+                r = sd_rtnl_message_route_set_src_prefixlen(req, route->src_prefixlen);
+                if (r < 0)
+                        return log_error_errno(r, "Could not set source prefix length: %m");
+        }
+
+        if (!in_addr_is_null(route->family, &route->prefsrc)) {
+                if (route->family == AF_INET)
+                        r = sd_netlink_message_append_in_addr(req, RTA_PREFSRC, &route->prefsrc.in);
+                else if (route->family == AF_INET6)
+                        r = sd_netlink_message_append_in6_addr(req, RTA_PREFSRC, &route->prefsrc.in6);
+                if (r < 0)
+                        return log_error_errno(r, "Could not append RTA_PREFSRC attribute: %m");
+        }
+
+        r = sd_rtnl_message_route_set_scope(req, route->scope);
+        if (r < 0)
+                return log_error_errno(r, "Could not set scope: %m");
+
+        r = sd_rtnl_message_route_set_flags(req, route->flags);
+        if (r < 0)
+                return log_error_errno(r, "Could not set flags: %m");
+
+        if (route->table != RT_TABLE_DEFAULT) {
+
+                if (route->table < 256) {
+                        r = sd_rtnl_message_route_set_table(req, route->table);
+                        if (r < 0)
+                                return log_error_errno(r, "Could not set route table: %m");
+                } else {
+
+                        r = sd_rtnl_message_route_set_table(req, RT_TABLE_UNSPEC);
+                        if (r < 0)
+                                return log_error_errno(r, "Could not set route table: %m");
+
+                        /* Table attribute to allow more than 256. */
+                        r = sd_netlink_message_append_data(req, RTA_TABLE, &route->table, sizeof(route->table));
+                        if (r < 0)
+                                return log_error_errno(r, "Could not append RTA_TABLE attribute: %m");
+                }
+        }
+
+        r = sd_netlink_message_append_u32(req, RTA_PRIORITY, route->priority);
+        if (r < 0)
+                return log_error_errno(r, "Could not append RTA_PRIORITY attribute: %m");
+
+        r = sd_netlink_message_append_u8(req, RTA_PREF, route->pref);
+        if (r < 0)
+                return log_error_errno(r, "Could not append RTA_PREF attribute: %m");
+
+        r = sd_netlink_message_append_u32(req, RTA_OIF, link->ifindex);
+        if (r < 0)
+                return log_error_errno(r, "Could not append RTA_OIF attribute: %m");
+
+        r = sd_netlink_call_async(link->manager->rtnl, req, callback, link, 0, NULL);
+        if (r < 0)
+                return log_error_errno(r, "Could not send rtnetlink message: %m");
+
+        link_ref(link);
+
+        lifetime = route->lifetime;
+
+        r = route_add(link, route->family, &route->dst, route->dst_prefixlen, route->tos, route->priority, route->table, &route);
+        if (r < 0)
+                return log_error_errno(r, "Could not add route: %m");
+
+        /* TODO: drop expiration handling once it can be pushed into the kernel */
+        route->lifetime = lifetime;
+
+        if (route->lifetime != USEC_INFINITY) {
+                r = sd_event_add_time(link->manager->event, &expire, clock_boottime_or_monotonic(),
+                                      route->lifetime, 0, route_expire_handler, route);
+                if (r < 0)
+                        return log_error_errno(r, "Could not arm expiration timer: %m");
+        }
+
+        sd_event_source_unref(route->expire);
+        route->expire = expire;
+        expire = NULL;
+
+        return 0;
+}
+
+int config_parse_gateway(const char *unit,
+                const char *filename,
+                unsigned line,
+                const char *section,
+                unsigned section_line,
+                const char *lvalue,
+                int ltype,
+                const char *rvalue,
+                void *data,
+                void *userdata) {
+
+        Network *network = userdata;
+        _cleanup_route_free_ Route *n = NULL;
+        union in_addr_union buffer;
+        int r, f;
+
+        assert(filename);
+        assert(section);
+        assert(lvalue);
+        assert(rvalue);
+        assert(data);
+
+        if (streq(section, "Network")) {
+                /* we are not in an Route section, so treat
+                 * this as the special '0' section */
+                section_line = 0;
+        }
+
+        r = route_new_static(network, section_line, &n);
+        if (r < 0)
+                return r;
+
+        r = in_addr_from_string_auto(rvalue, &f, &buffer);
+        if (r < 0) {
+                log_syntax(unit, LOG_ERR, filename, line, r, "Route is invalid, ignoring assignment: %s", rvalue);
+                return 0;
+        }
+
+        n->family = f;
+        n->gw = buffer;
+        n = NULL;
+
+        return 0;
+}
+
+int config_parse_preferred_src(const char *unit,
+                const char *filename,
+                unsigned line,
+                const char *section,
+                unsigned section_line,
+                const char *lvalue,
+                int ltype,
+                const char *rvalue,
+                void *data,
+                void *userdata) {
+
+        Network *network = userdata;
+        _cleanup_route_free_ Route *n = NULL;
+        union in_addr_union buffer;
+        int r, f;
+
+        assert(filename);
+        assert(section);
+        assert(lvalue);
+        assert(rvalue);
+        assert(data);
+
+        r = route_new_static(network, section_line, &n);
+        if (r < 0)
+                return r;
+
+        r = in_addr_from_string_auto(rvalue, &f, &buffer);
+        if (r < 0) {
+                log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                           "Preferred source is invalid, ignoring assignment: %s", rvalue);
+                return 0;
+        }
+
+        n->family = f;
+        n->prefsrc = buffer;
+        n = NULL;
+
+        return 0;
+}
+
+int config_parse_destination(const char *unit,
+                const char *filename,
+                unsigned line,
+                const char *section,
+                unsigned section_line,
+                const char *lvalue,
+                int ltype,
+                const char *rvalue,
+                void *data,
+                void *userdata) {
+
+        Network *network = userdata;
+        _cleanup_route_free_ Route *n = NULL;
+        const char *address, *e;
+        union in_addr_union buffer;
+        unsigned char prefixlen;
+        int r, f;
+
+        assert(filename);
+        assert(section);
+        assert(lvalue);
+        assert(rvalue);
+        assert(data);
+
+        r = route_new_static(network, section_line, &n);
+        if (r < 0)
+                return r;
+
+        /* Destination|Source=address/prefixlen */
+
+        /* address */
+        e = strchr(rvalue, '/');
+        if (e)
+                address = strndupa(rvalue, e - rvalue);
+        else
+                address = rvalue;
+
+        r = in_addr_from_string_auto(address, &f, &buffer);
+        if (r < 0) {
+                log_syntax(unit, LOG_ERR, filename, line, r, "Destination is invalid, ignoring assignment: %s", address);
+                return 0;
+        }
+
+        if (f != AF_INET && f != AF_INET6) {
+                log_syntax(unit, LOG_ERR, filename, line, 0, "Unknown address family, ignoring assignment: %s", address);
+                return 0;
+        }
+
+        /* prefixlen */
+        if (e) {
+                r = safe_atou8(e + 1, &prefixlen);
+                if (r < 0) {
+                        log_syntax(unit, LOG_ERR, filename, line, r, "Route destination prefix length is invalid, ignoring assignment: %s", e + 1);
+                        return 0;
+                }
+        } else {
+                switch (f) {
+                        case AF_INET:
+                                prefixlen = 32;
+                                break;
+                        case AF_INET6:
+                                prefixlen = 128;
+                                break;
+                }
+        }
+
+        n->family = f;
+        if (streq(lvalue, "Destination")) {
+                n->dst = buffer;
+                n->dst_prefixlen = prefixlen;
+        } else if (streq(lvalue, "Source")) {
+                n->src = buffer;
+                n->src_prefixlen = prefixlen;
+        } else
+                assert_not_reached(lvalue);
+
+        n = NULL;
+
+        return 0;
+}
+
+int config_parse_route_priority(const char *unit,
+                                const char *filename,
+                                unsigned line,
+                                const char *section,
+                                unsigned section_line,
+                                const char *lvalue,
+                                int ltype,
+                                const char *rvalue,
+                                void *data,
+                                void *userdata) {
+        Network *network = userdata;
+        _cleanup_route_free_ Route *n = NULL;
+        int r;
+
+        assert(filename);
+        assert(section);
+        assert(lvalue);
+        assert(rvalue);
+        assert(data);
+
+        r = route_new_static(network, section_line, &n);
+        if (r < 0)
+                return r;
+
+        r = config_parse_uint32(unit, filename, line, section,
+                                section_line, lvalue, ltype,
+                                rvalue, &n->priority, userdata);
+        if (r < 0)
+                return r;
+
+        n = NULL;
+
+        return 0;
+}
+
+int config_parse_route_scope(const char *unit,
+                             const char *filename,
+                             unsigned line,
+                             const char *section,
+                             unsigned section_line,
+                             const char *lvalue,
+                             int ltype,
+                             const char *rvalue,
+                             void *data,
+                             void *userdata) {
+        Network *network = userdata;
+        _cleanup_route_free_ Route *n = NULL;
+        int r;
+
+        assert(filename);
+        assert(section);
+        assert(lvalue);
+        assert(rvalue);
+        assert(data);
+
+        r = route_new_static(network, section_line, &n);
+        if (r < 0)
+                return r;
+
+        if (streq(rvalue, "host"))
+                n->scope = RT_SCOPE_HOST;
+        else if (streq(rvalue, "link"))
+                n->scope = RT_SCOPE_LINK;
+        else if (streq(rvalue, "global"))
+                n->scope = RT_SCOPE_UNIVERSE;
+        else {
+                log_syntax(unit, LOG_ERR, filename, line, 0, "Unknown route scope: %s", rvalue);
+                return 0;
+        }
+
+        n = NULL;
+
+        return 0;
+}
+
+int config_parse_route_table(const char *unit,
+                             const char *filename,
+                             unsigned line,
+                             const char *section,
+                             unsigned section_line,
+                             const char *lvalue,
+                             int ltype,
+                             const char *rvalue,
+                             void *data,
+                             void *userdata) {
+        _cleanup_route_free_ Route *n = NULL;
+        Network *network = userdata;
+        uint32_t k;
+        int r;
+
+        assert(filename);
+        assert(section);
+        assert(lvalue);
+        assert(rvalue);
+        assert(data);
+
+        r = route_new_static(network, section_line, &n);
+        if (r < 0)
+                return r;
+
+        r = safe_atou32(rvalue, &k);
+        if (r < 0) {
+                log_syntax(unit, LOG_ERR, filename, line, r,
+                           "Could not parse route table number \"%s\", ignoring assignment: %m", rvalue);
+                return 0;
+        }
+
+        n->table = k;
+
+        n = NULL;
+
+        return 0;
+}