#include "alloc-util.h"
#include "conf-parser.h"
#include "in-addr-util.h"
+#include "missing_network.h"
#include "netlink-util.h"
#include "networkd-manager.h"
#include "networkd-route.h"
int route_new(Route **ret) {
_cleanup_(route_freep) Route *route = NULL;
- route = new0(Route, 1);
+ route = new(Route, 1);
if (!route)
return -ENOMEM;
- route->family = AF_UNSPEC;
- route->scope = RT_SCOPE_UNIVERSE;
- route->protocol = RTPROT_UNSPEC;
- route->type = RTN_UNICAST;
- route->table = RT_TABLE_MAIN;
- route->lifetime = USEC_INFINITY;
- route->quickack = -1;
+ *route = (Route) {
+ .family = AF_UNSPEC,
+ .scope = RT_SCOPE_UNIVERSE,
+ .protocol = RTPROT_UNSPEC,
+ .type = RTN_UNICAST,
+ .table = RT_TABLE_MAIN,
+ .lifetime = USEC_INFINITY,
+ .quickack = -1,
+ };
*ret = TAKE_PTR(route);
return r;
route->protocol = RTPROT_STATIC;
+ route->network = network;
+ LIST_PREPEND(routes, network->static_routes, route);
+ network->n_static_routes++;
if (filename) {
route->section = TAKE_PTR(n);
+ r = hashmap_ensure_allocated(&network->routes_by_section, &network_config_hash_ops);
+ if (r < 0)
+ return r;
+
r = hashmap_put(network->routes_by_section, route->section, route);
if (r < 0)
return r;
}
- route->network = network;
- LIST_PREPEND(routes, network->static_routes, route);
- network->n_static_routes++;
-
*ret = TAKE_PTR(route);
return 0;
free(route);
}
-static void route_hash_func(const void *b, struct siphash *state) {
- const Route *route = b;
-
+static void route_hash_func(const Route *route, struct siphash *state) {
assert(route);
siphash24_compress(&route->family, sizeof(route->family), state);
}
}
-static int route_compare_func(const void *_a, const void *_b) {
- const Route *a = _a, *b = _b;
+static int route_compare_func(const Route *a, const Route *b) {
int r;
r = CMP(a->family, b->family);
}
}
-static const struct hash_ops route_hash_ops = {
- .hash = route_hash_func,
- .compare = route_compare_func
-};
+DEFINE_PRIVATE_HASH_OPS(route_hash_ops, Route, route_hash_func, route_compare_func);
+
+bool route_equal(Route *r1, Route *r2) {
+ if (r1 == r2)
+ return true;
+
+ if (!r1 || !r2)
+ return false;
+
+ return route_compare_func(r1, r2) == 0;
+}
int route_get(Link *link,
int family,
assert(route);
assert(src || src_prefixlen == 0);
- route->src = src ? *src : (union in_addr_union) {};
+ route->src = src ? *src : IN_ADDR_NULL;
route->src_prefixlen = src_prefixlen;
- route->gw = gw ? *gw : (union in_addr_union) {};
- route->prefsrc = prefsrc ? *prefsrc : (union in_addr_union) {};
+ route->gw = gw ? *gw : IN_ADDR_NULL;
+ route->prefsrc = prefsrc ? *prefsrc : IN_ADDR_NULL;
route->scope = scope;
route->protocol = protocol;
route->type = type;
}
+static int route_remove_handler(sd_netlink *rtnl, sd_netlink_message *m, Link *link) {
+ int r;
+
+ 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 != -ESRCH)
+ log_link_warning_errno(link, r, "Could not drop route: %m");
+
+ return 1;
+}
+
int route_remove(Route *route, Link *link,
- sd_netlink_message_handler_t callback) {
+ link_netlink_message_handler_t callback) {
_cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL;
int r;
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 (in_addr_is_null(route->family, &route->gw) == 0) {
+ r = netlink_message_append_in_addr_union(req, RTA_GATEWAY, route->family, &route->gw);
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);
+ r = netlink_message_append_in_addr_union(req, RTA_DST, route->family, &route->dst);
if (r < 0)
return log_error_errno(r, "Could not append RTA_DST attribute: %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);
+ r = netlink_message_append_in_addr_union(req, RTA_SRC, route->family, &route->src);
if (r < 0)
return log_error_errno(r, "Could not append RTA_SRC attribute: %m");
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 (in_addr_is_null(route->family, &route->prefsrc) == 0) {
+ r = netlink_message_append_in_addr_union(req, RTA_PREFSRC, route->family, &route->prefsrc);
if (r < 0)
return log_error_errno(r, "Could not append RTA_PREFSRC attribute: %m");
}
if (r < 0)
return log_error_errno(r, "Could not append RTA_PRIORITY attribute: %m");
- if (!IN_SET(route->type, RTN_UNREACHABLE, RTN_PROHIBIT, RTN_BLACKHOLE)) {
+ if (!IN_SET(route->type, RTN_UNREACHABLE, RTN_PROHIBIT, RTN_BLACKHOLE, RTN_THROW)) {
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_netlink_destroy_callback, link, 0, NULL);
+ r = netlink_call_async(link->manager->rtnl, NULL, req,
+ callback ?: route_remove_handler,
+ link_netlink_destroy_callback, link);
if (r < 0)
return log_error_errno(r, "Could not send rtnetlink message: %m");
assert(route);
- r = route_remove(route, route->link, link_route_remove_handler);
+ r = route_remove(route, route->link, NULL);
if (r < 0)
log_warning_errno(r, "Could not remove route: %m");
else
int route_configure(
Route *route,
Link *link,
- sd_netlink_message_handler_t callback) {
+ link_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;
assert(link->manager->rtnl);
assert(link->ifindex > 0);
assert(IN_SET(route->family, AF_INET, AF_INET6));
+ assert(callback);
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;
+ if (DEBUG_LOGGING) {
+ _cleanup_free_ char *dst = NULL, *dst_prefixlen = NULL, *src = NULL, *gw = NULL, *prefsrc = NULL;
+
+ if (!in_addr_is_null(route->family, &route->dst)) {
+ (void) in_addr_to_string(route->family, &route->dst, &dst);
+ (void) asprintf(&dst_prefixlen, "/%u", route->dst_prefixlen);
+ }
+ if (!in_addr_is_null(route->family, &route->src))
+ (void) in_addr_to_string(route->family, &route->src, &src);
+ if (!in_addr_is_null(route->family, &route->gw))
+ (void) in_addr_to_string(route->family, &route->gw, &gw);
+ if (!in_addr_is_null(route->family, &route->prefsrc))
+ (void) in_addr_to_string(route->family, &route->prefsrc, &prefsrc);
+
+ log_link_debug(link, "Configuring route: dst: %s%s, src: %s, gw: %s, prefsrc: %s",
+ strna(dst), strempty(dst_prefixlen), strna(src), strna(gw), strna(prefsrc));
+ }
+
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 (in_addr_is_null(route->family, &route->gw) == 0) {
+ r = netlink_message_append_in_addr_union(req, RTA_GATEWAY, route->family, &route->gw);
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);
+ r = netlink_message_append_in_addr_union(req, RTA_DST, route->family, &route->dst);
if (r < 0)
return log_error_errno(r, "Could not append RTA_DST attribute: %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);
+ r = netlink_message_append_in_addr_union(req, RTA_SRC, route->family, &route->src);
if (r < 0)
return log_error_errno(r, "Could not append RTA_SRC attribute: %m");
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 (in_addr_is_null(route->family, &route->prefsrc) == 0) {
+ r = netlink_message_append_in_addr_union(req, RTA_PREFSRC, route->family, &route->prefsrc);
if (r < 0)
return log_error_errno(r, "Could not append RTA_PREFSRC attribute: %m");
}
if (r < 0)
return log_error_errno(r, "Could not set route type: %m");
- if (!IN_SET(route->type, RTN_UNREACHABLE, RTN_PROHIBIT, RTN_BLACKHOLE)) {
+ if (!IN_SET(route->type, RTN_UNREACHABLE, RTN_PROHIBIT, RTN_BLACKHOLE, RTN_THROW)) {
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");
if (r < 0)
return log_error_errno(r, "Could not append RTA_METRICS attribute: %m");
- r = sd_netlink_call_async(link->manager->rtnl, req, callback,
- link_netlink_destroy_callback, link, 0, NULL);
+ r = netlink_call_async(link->manager->rtnl, NULL, req, callback,
+ link_netlink_destroy_callback, link);
if (r < 0)
return log_error_errno(r, "Could not send rtnetlink message: %m");
Network *network = userdata;
_cleanup_(route_freep) Route *n = NULL;
- union in_addr_union buffer;
- int r, f;
+ int r;
assert(filename);
assert(section);
if (r < 0)
return r;
- r = in_addr_from_string_auto(rvalue, &f, &buffer);
+ r = in_addr_from_string_auto(rvalue, &n->family, &n->gw);
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;
TAKE_PTR(n);
return 0;
Network *network = userdata;
_cleanup_(route_freep) Route *n = NULL;
- union in_addr_union buffer;
- int r, f;
+ int r;
assert(filename);
assert(section);
if (r < 0)
return r;
- r = in_addr_from_string_auto(rvalue, &f, &buffer);
+ r = in_addr_from_string_auto(rvalue, &n->family, &n->prefsrc);
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;
TAKE_PTR(n);
return 0;
Network *network = userdata;
_cleanup_(route_freep) Route *n = NULL;
- union in_addr_union buffer;
- unsigned char prefixlen;
+ union in_addr_union *buffer;
+ unsigned char *prefixlen;
int r;
assert(filename);
if (r < 0)
return r;
- r = in_addr_prefix_from_string(rvalue, AF_INET, &buffer, &prefixlen);
- if (r < 0) {
- r = in_addr_prefix_from_string(rvalue, AF_INET6, &buffer, &prefixlen);
- if (r < 0) {
- log_syntax(unit, LOG_ERR, filename, line, r,
- "Route %s= prefix is invalid, ignoring assignment: %s",
- lvalue, rvalue);
- return 0;
- }
-
- n->family = AF_INET6;
- } else
- n->family = AF_INET;
-
if (streq(lvalue, "Destination")) {
- n->dst = buffer;
- n->dst_prefixlen = prefixlen;
+ buffer = &n->dst;
+ prefixlen = &n->dst_prefixlen;
} else if (streq(lvalue, "Source")) {
- n->src = buffer;
- n->src_prefixlen = prefixlen;
+ buffer = &n->src;
+ prefixlen = &n->src_prefixlen;
} else
assert_not_reached(lvalue);
+ r = in_addr_prefix_from_string_auto(rvalue, &n->family, buffer, prefixlen);
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, r,
+ "Route %s= prefix is invalid, ignoring assignment: %s",
+ lvalue, rvalue);
+ return 0;
+ }
+
TAKE_PTR(n);
return 0;
}
n->type = RTN_UNREACHABLE;
else if (streq(rvalue, "prohibit"))
n->type = RTN_PROHIBIT;
+ else if (streq(rvalue, "throw"))
+ n->type = RTN_THROW;
else {
log_syntax(unit, LOG_ERR, filename, line, r, "Could not parse route type \"%s\", ignoring assignment: %m", rvalue);
return 0;
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