/* SPDX-License-Identifier: LGPL-2.1+ */
-/***
- This file is part of systemd.
-
- Copyright 2013 Tom Gundersen <teg@jklm.no>
-***/
#include <linux/icmpv6.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;
- if (a->family < b->family)
- return -1;
- if (a->family > b->family)
- return 1;
+ r = CMP(a->family, b->family);
+ if (r != 0)
+ return r;
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;
+ r = CMP(a->dst_prefixlen, b->dst_prefixlen);
+ if (r != 0)
+ return r;
+
+ r = CMP(a->tos, b->tos);
+ if (r != 0)
+ return r;
+
+ r = CMP(a->priority, b->priority);
+ if (r != 0)
+ return r;
+
+ r = CMP(a->table, b->table);
+ if (r != 0)
+ return r;
return memcmp(&a->dst, &b->dst, FAMILY_ADDRESS_SIZE(a->family));
default:
}
}
-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,
return route_add_internal(link, &link->routes_foreign, family, dst, dst_prefixlen, tos, priority, table, ret);
}
-int route_add(
- Link *link,
+int route_add(Link *link,
int family,
const union in_addr_union *dst,
unsigned char dst_prefixlen,
}
void 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,
- unsigned char type) {
+ 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,
+ unsigned char type) {
assert(route);
- assert(src);
- assert(gw);
- assert(prefsrc);
+ assert(src || src_prefixlen == 0);
- route->src = *src;
+ route->src = src ? *src : IN_ADDR_NULL;
route->src_prefixlen = src_prefixlen;
- route->gw = *gw;
- route->prefsrc = *prefsrc;
+ 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 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, 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");
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);
+ 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())
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, 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");
return 0;
}
-int config_parse_gateway(const char *unit,
+int config_parse_gateway(
+ const char *unit,
const char *filename,
unsigned line,
const char *section,
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;
- n = NULL;
+ TAKE_PTR(n);
return 0;
}
-int config_parse_preferred_src(const char *unit,
+int config_parse_preferred_src(
+ const char *unit,
const char *filename,
unsigned line,
const char *section,
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;
- n = NULL;
+ TAKE_PTR(n);
return 0;
}
-int config_parse_destination(const char *unit,
+int config_parse_destination(
+ const char *unit,
const char *filename,
unsigned line,
const char *section,
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);
- n = NULL;
+ 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;
}
-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) {
+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_freep) Route *n = NULL;
- uint32_t k;
int r;
assert(filename);
if (r < 0)
return r;
- r = safe_atou32(rvalue, &k);
+ r = safe_atou32(rvalue, &n->priority);
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;
-
+ TAKE_PTR(n);
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) {
+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_freep) Route *n = NULL;
int r;
return 0;
}
- n = NULL;
-
+ TAKE_PTR(n);
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) {
+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_freep) Route *n = NULL;
Network *network = userdata;
- uint32_t k;
int r;
assert(filename);
if (r < 0)
return r;
- r = safe_atou32(rvalue, &k);
+ r = safe_atou32(rvalue, &n->table);
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;
-
+ TAKE_PTR(n);
return 0;
}
-int config_parse_gateway_onlink(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) {
+int config_parse_gateway_onlink(
+ 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_freep) Route *n = NULL;
int r;
}
SET_FLAG(n->flags, RTNH_F_ONLINK, r);
- n = NULL;
-
+ TAKE_PTR(n);
return 0;
}
-int config_parse_ipv6_route_preference(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) {
+int config_parse_ipv6_route_preference(
+ 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_freep) Route *n = NULL;
int r;
return 0;
}
- n = NULL;
-
+ TAKE_PTR(n);
return 0;
}
-int config_parse_route_protocol(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) {
+int config_parse_route_protocol(
+ 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_freep) Route *n = NULL;
int r;
}
}
- n = NULL;
-
+ TAKE_PTR(n);
return 0;
}
-int config_parse_route_type(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) {
+int config_parse_route_type(
+ 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_freep) Route *n = NULL;
int r;
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;
}
- n = NULL;
-
+ TAKE_PTR(n);
return 0;
}
-int config_parse_tcp_window(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) {
+int config_parse_tcp_window(
+ 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_freep) Route *n = NULL;
Network *network = userdata;
uint64_t k;
return 0;
}
- n = NULL;
-
+ TAKE_PTR(n);
return 0;
}
-int config_parse_quickack(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) {
+int config_parse_quickack(
+ 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_freep) Route *n = NULL;
Network *network = userdata;
int k, r;
}
n->quickack = !!k;
- n = NULL;
+ TAKE_PTR(n);
+ return 0;
+}
+
+int config_parse_route_mtu(
+ 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_freep) Route *n = NULL;
+ int r;
+
+ assert(filename);
+ assert(section);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ r = route_new_static(network, filename, section_line, &n);
+ if (r < 0)
+ return r;
+
+ r = config_parse_mtu(unit, filename, line, section, section_line, lvalue, ltype, rvalue, &n->mtu, userdata);
+ if (r < 0)
+ return r;
+ TAKE_PTR(n);
return 0;
}
projects / thirdparty / systemd.git / blobdiff