X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fnetwork%2Fnetworkd-route.c;h=d0a04ecfeebcd3388469cda35e22e083101c7b5d;hb=1324e3ae515719a93a94a8d8316644af6c780909;hp=f8580e93c8e9feaced5e0144454fca37bb0fd8ca;hpb=1f01fb4f29bbe6aff952331a538fb3cc7f52dab4;p=elogind.git

diff --git a/src/network/networkd-route.c b/src/network/networkd-route.c
index f8580e93c..d0a04ecfe 100644
--- a/src/network/networkd-route.c
+++ b/src/network/networkd-route.c
@@ -26,9 +26,9 @@
 #include "utf8.h"
 #include "util.h"
 #include "conf-parser.h"
-#include "net-util.h"
+#include "network-internal.h"
 
-int route_new(Network *network, unsigned section, Route **ret) {
+int route_new_static(Network *network, unsigned section, Route **ret) {
         _cleanup_route_free_ Route *route = NULL;
 
         if (section) {
@@ -47,9 +47,12 @@ int route_new(Network *network, unsigned section, Route **ret) {
         if (!route)
                 return -ENOMEM;
 
+        route->family = AF_UNSPEC;
+        route->scope = RT_SCOPE_UNIVERSE;
+
         route->network = network;
 
-        LIST_PREPEND(routes, network->routes, route);
+        LIST_PREPEND(routes, network->static_routes, route);
 
         if (section) {
                 route->section = section;
@@ -62,22 +65,111 @@ int route_new(Network *network, unsigned section, Route **ret) {
         return 0;
 }
 
+int route_new_dynamic(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;
+
+        *ret = route;
+        route = NULL;
+
+        return 0;
+}
+
 void route_free(Route *route) {
         if (!route)
                 return;
 
-        LIST_REMOVE(routes, route->network->routes, route);
+        if (route->network) {
+                LIST_REMOVE(routes, route->network->static_routes, route);
 
-        if (route->section)
-                hashmap_remove(route->network->routes_by_section,
-                               &route->section);
+                if (route->section)
+                        hashmap_remove(route->network->routes_by_section,
+                                       &route->section);
+        }
 
         free(route);
 }
 
+int route_drop(Route *route, Link *link,
+               sd_rtnl_message_handler_t callback) {
+        _cleanup_rtnl_message_unref_ sd_rtnl_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);
+        if (r < 0) {
+                log_error("Could not create RTM_DELROUTE message: %s", strerror(-r));
+                return r;
+        }
+
+        if (route->family == AF_INET)
+                r = sd_rtnl_message_append_in_addr(req, RTA_GATEWAY, &route->in_addr.in);
+        else if (route->family == AF_INET6)
+                r = sd_rtnl_message_append_in6_addr(req, RTA_GATEWAY, &route->in_addr.in6);
+        if (r < 0) {
+                log_error("Could not append RTA_GATEWAY attribute: %s", strerror(-r));
+                return r;
+        }
+
+        if (route->dst_prefixlen) {
+                if (route->family == AF_INET)
+                        r = sd_rtnl_message_append_in_addr(req, RTA_DST, &route->dst_addr.in);
+                else if (route->family == AF_INET6)
+                        r = sd_rtnl_message_append_in6_addr(req, RTA_DST, &route->dst_addr.in6);
+                if (r < 0) {
+                        log_error("Could not append RTA_DST attribute: %s", strerror(-r));
+                        return r;
+                }
+
+                r = sd_rtnl_message_route_set_dst_prefixlen(req, route->dst_prefixlen);
+                if (r < 0) {
+                        log_error("Could not set destination prefix length: %s", strerror(-r));
+                        return r;
+                }
+        }
+
+        r = sd_rtnl_message_route_set_scope(req, route->scope);
+        if (r < 0) {
+                log_error("Could not set scope: %s", strerror(-r));
+                return r;
+        }
+
+        r = sd_rtnl_message_append_u32(req, RTA_PRIORITY, route->metrics);
+        if (r < 0) {
+                log_error("Could not append RTA_PRIORITY attribute: %s", strerror(-r));
+                return r;
+        }
+
+        r = sd_rtnl_message_append_u32(req, RTA_OIF, link->ifindex);
+        if (r < 0) {
+                log_error("Could not append RTA_OIF attribute: %s", strerror(-r));
+                return r;
+        }
+
+        r = sd_rtnl_call_async(link->manager->rtnl, req, callback, link, 0, NULL);
+        if (r < 0) {
+                log_error("Could not send rtnetlink message: %s", strerror(-r));
+                return r;
+        }
+
+        return 0;
+}
+
 int route_configure(Route *route, Link *link,
                     sd_rtnl_message_handler_t callback) {
-        _cleanup_sd_rtnl_message_unref_ sd_rtnl_message *req = NULL;
+        _cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL;
         int r;
 
         assert(link);
@@ -86,31 +178,52 @@ int route_configure(Route *route, Link *link,
         assert(link->ifindex > 0);
         assert(route->family == AF_INET || route->family == AF_INET6);
 
-        r = sd_rtnl_message_route_new(RTM_NEWROUTE, route->family, &req);
+        r = sd_rtnl_message_new_route(link->manager->rtnl, &req,
+                                      RTM_NEWROUTE, route->family);
         if (r < 0) {
                 log_error("Could not create RTM_NEWROUTE message: %s", strerror(-r));
                 return r;
         }
 
-        r = sd_rtnl_message_append(req, RTA_GATEWAY, &route->in_addr);
+        if (route->family == AF_INET)
+                r = sd_rtnl_message_append_in_addr(req, RTA_GATEWAY, &route->in_addr.in);
+        else if (route->family == AF_INET6)
+                r = sd_rtnl_message_append_in6_addr(req, RTA_GATEWAY, &route->in_addr.in6);
         if (r < 0) {
                 log_error("Could not append RTA_GATEWAY attribute: %s", strerror(-r));
                 return r;
         }
 
-        r = sd_rtnl_message_append(req, RTA_DST, &route->dst_addr);
+        if (route->dst_prefixlen) {
+                if (route->family == AF_INET)
+                        r = sd_rtnl_message_append_in_addr(req, RTA_DST, &route->dst_addr.in);
+                else if (route->family == AF_INET6)
+                        r = sd_rtnl_message_append_in6_addr(req, RTA_DST, &route->dst_addr.in6);
+                if (r < 0) {
+                        log_error("Could not append RTA_DST attribute: %s", strerror(-r));
+                        return r;
+                }
+
+                r = sd_rtnl_message_route_set_dst_prefixlen(req, route->dst_prefixlen);
+                if (r < 0) {
+                        log_error("Could not set destination prefix length: %s", strerror(-r));
+                        return r;
+                }
+        }
+
+        r = sd_rtnl_message_route_set_scope(req, route->scope);
         if (r < 0) {
-                log_error("Could not append RTA_DST attribute: %s", strerror(-r));
+                log_error("Could not set scope: %s", strerror(-r));
                 return r;
         }
 
-        r = sd_rtnl_message_route_set_dst_prefixlen(req, route->dst_prefixlen);
+        r = sd_rtnl_message_append_u32(req, RTA_PRIORITY, route->metrics);
         if (r < 0) {
-                log_error("Could not set destination prefix length: %s", strerror(-r));
+                log_error("Could not append RTA_PRIORITY attribute: %s", strerror(-r));
                 return r;
         }
 
-        r = sd_rtnl_message_append(req, RTA_OIF, &link->ifindex);
+        r = sd_rtnl_message_append_u32(req, RTA_OIF, link->ifindex);
         if (r < 0) {
                 log_error("Could not append RTA_OIF attribute: %s", strerror(-r));
                 return r;
@@ -152,7 +265,7 @@ int config_parse_gateway(const char *unit,
                 section_line = 0;
         }
 
-        r = route_new(network, section_line, &n);
+        r = route_new_static(network, section_line, &n);
         if (r < 0)
                 return r;
 
@@ -190,26 +303,15 @@ int config_parse_destination(const char *unit,
         assert(rvalue);
         assert(data);
 
-        r = route_new(network, section_line, &n);
+        r = route_new_static(network, section_line, &n);
         if (r < 0)
                 return r;
 
         /* Destination=address/prefixlen */
 
-        /* prefixlen */
+        /* address */
         e = strchr(rvalue, '/');
         if (e) {
-                unsigned i;
-                r = safe_atou(e + 1, &i);
-                if (r < 0) {
-                        log_syntax(unit, LOG_ERR, filename, line, EINVAL,
-                                   "Route destination prefix length is invalid, "
-                                   "ignoring assignment: %s", e + 1);
-                        return 0;
-                }
-
-                n->dst_prefixlen = (unsigned char) i;
-
                 address = strndup(rvalue, e - rvalue);
                 if (!address)
                         return log_oom();
@@ -226,6 +328,30 @@ int config_parse_destination(const char *unit,
                 return 0;
         }
 
+        /* prefixlen */
+        if (e) {
+                unsigned i;
+
+                r = safe_atou(e + 1, &i);
+                if (r < 0) {
+                        log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                                   "Route destination prefix length is invalid, "
+                                   "ignoring assignment: %s", e + 1);
+                        return 0;
+                }
+
+                n->dst_prefixlen = (unsigned char) i;
+        } else {
+                switch (n->family) {
+                        case AF_INET:
+                                n->dst_prefixlen = 32;
+                                break;
+                        case AF_INET6:
+                                n->dst_prefixlen = 128;
+                                break;
+                }
+        }
+
         n = NULL;
 
         return 0;