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-rw-r--r--src/grp-network/libnetworkd-core/networkd-route.c919
1 files changed, 919 insertions, 0 deletions
diff --git a/src/grp-network/libnetworkd-core/networkd-route.c b/src/grp-network/libnetworkd-core/networkd-route.c
new file mode 100644
index 0000000000..fdff340369
--- /dev/null
+++ b/src/grp-network/libnetworkd-core/networkd-route.c
@@ -0,0 +1,919 @@
+/***
+ 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 "sd-netlink/netlink-util.h"
+#include "systemd-basic/alloc-util.h"
+#include "systemd-basic/in-addr-util.h"
+#include "systemd-basic/parse-util.h"
+#include "systemd-basic/set.h"
+#include "systemd-basic/string-util.h"
+#include "systemd-basic/util.h"
+#include "systemd-shared/conf-parser.h"
+#include "systemd-shared/sysctl-util.h"
+
+#include "networkd-route.h"
+#include "networkd.h"
+
+#define ROUTES_DEFAULT_MAX_PER_FAMILY 4096U
+
+static unsigned routes_max(void) {
+ static thread_local unsigned cached = 0;
+
+ _cleanup_free_ char *s4 = NULL, *s6 = NULL;
+ unsigned val4 = ROUTES_DEFAULT_MAX_PER_FAMILY, val6 = ROUTES_DEFAULT_MAX_PER_FAMILY;
+
+ if (cached > 0)
+ return cached;
+
+ if (sysctl_read("net/ipv4/route/max_size", &s4) >= 0) {
+ truncate_nl(s4);
+ if (safe_atou(s4, &val4) >= 0 &&
+ val4 == 2147483647U)
+ /* This is the default "no limit" value in the kernel */
+ val4 = ROUTES_DEFAULT_MAX_PER_FAMILY;
+ }
+
+ if (sysctl_read("net/ipv6/route/max_size", &s6) >= 0) {
+ truncate_nl(s6);
+ (void) safe_atou(s6, &val6);
+ }
+
+ cached = MAX(ROUTES_DEFAULT_MAX_PER_FAMILY, val4) +
+ MAX(ROUTES_DEFAULT_MAX_PER_FAMILY, val6);
+ return cached;
+}
+
+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_MAIN;
+ 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;
+
+ assert(network);
+ assert(ret);
+
+ if (section) {
+ route = hashmap_get(network->routes_by_section, UINT_TO_PTR(section));
+ if (route) {
+ *ret = route;
+ route = NULL;
+
+ return 0;
+ }
+ }
+
+ if (network->n_static_routes >= routes_max())
+ return -E2BIG;
+
+ 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);
+ network->n_static_routes++;
+
+ *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);
+
+ assert(route->network->n_static_routes > 0);
+ route->network->n_static_routes--;
+
+ 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,
+ const union in_addr_union *dst,
+ unsigned char dst_prefixlen,
+ unsigned char tos,
+ uint32_t priority,
+ unsigned char table,
+ Route **ret) {
+
+ Route route, *existing;
+
+ assert(link);
+ assert(dst);
+
+ route = (Route) {
+ .family = family,
+ .dst = *dst,
+ .dst_prefixlen = dst_prefixlen,
+ .tos = tos,
+ .priority = priority,
+ .table = table,
+ };
+
+ existing = set_get(link->routes, &route);
+ if (existing) {
+ if (ret)
+ *ret = existing;
+ return 1;
+ }
+
+ existing = set_get(link->routes_foreign, &route);
+ if (existing) {
+ if (ret)
+ *ret = existing;
+ return 0;
+ }
+
+ return -ENOENT;
+}
+
+static int route_add_internal(
+ Link *link,
+ Set **routes,
+ int family,
+ const 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,
+ const 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,
+ const 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;
+
+ if (ret)
+ *ret = route;
+
+ return 0;
+}
+
+int route_update(Route *route,
+ const union in_addr_union *src,
+ unsigned char src_prefixlen,
+ const union in_addr_union *gw,
+ const 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);
+
+ if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
+ return 1;
+
+ r = sd_netlink_message_get_errno(m);
+ if (r < 0 && r != -EEXIST)
+ log_link_warning_errno(link, r, "could not remove route: %m");
+
+ 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_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);
+
+ if (route_get(link, route->family, &route->dst, route->dst_prefixlen, route->tos, route->priority, route->table, NULL) <= 0 &&
+ set_size(link->routes) >= routes_max())
+ return -E2BIG;
+
+ 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_MAIN) {
+ 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;
+ 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 priority \"%s\", ignoring assignment: %m", rvalue);
+ return 0;
+ }
+
+ n->priority = k;
+ 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;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-01 11:39:46 +0000