#include <unistd.h>
#include <linux/if.h>
#include <linux/fib_rules.h>
+#include <linux/nexthop.h>
#include "sd-daemon.h"
#include "sd-netlink.h"
#include "alloc-util.h"
+#include "bus-polkit.h"
#include "bus-util.h"
#include "conf-parser.h"
#include "def.h"
#include "udev-util.h"
#include "virt.h"
-/* use 8 MB for receive socket kernel queue. */
-#define RCVBUF_SIZE (8*1024*1024)
+/* use 128 MB for receive socket kernel queue. */
+#define RCVBUF_SIZE (128*1024*1024)
+
+static int log_message_warning_errno(sd_netlink_message *m, int err, const char *msg) {
+ const char *err_msg = NULL;
+
+ (void) sd_netlink_message_read_string(m, NLMSGERR_ATTR_MSG, &err_msg);
+ return log_warning_errno(err, "%s: %s%s%m", msg, strempty(err_msg), err_msg ? " " : "");
+}
static int setup_default_address_pool(Manager *m) {
AddressPool *p;
if (sd_netlink_message_is_error(message)) {
r = sd_netlink_message_get_errno(message);
if (r < 0)
- log_warning_errno(r, "rtnl: failed to receive route message, ignoring: %m");
+ log_message_warning_errno(message, r, "rtnl: failed to receive route message, ignoring");
return 0;
}
return log_oom();
r = sd_rtnl_message_route_get_family(message, &tmp->family);
- if (r < 0 || !IN_SET(tmp->family, AF_INET, AF_INET6)) {
- log_link_warning(link, "rtnl: received route message with invalid family, ignoring");
+ if (r < 0) {
+ log_link_warning(link, "rtnl: received route message without family, ignoring");
+ return 0;
+ } else if (!IN_SET(tmp->family, AF_INET, AF_INET6)) {
+ log_link_debug(link, "rtnl: received route message with invalid family '%i', ignoring", tmp->family);
return 0;
}
r = sd_rtnl_message_route_get_protocol(message, &tmp->protocol);
if (r < 0) {
- log_warning_errno(r, "rtnl: received route message with invalid route protocol: %m");
+ log_warning_errno(r, "rtnl: received route message without route protocol: %m");
return 0;
}
if (sd_netlink_message_is_error(message)) {
r = sd_netlink_message_get_errno(message);
if (r < 0)
- log_warning_errno(r, "rtnl: failed to receive neighbor message, ignoring: %m");
+ log_message_warning_errno(message, r, "rtnl: failed to receive neighbor message, ignoring");
return 0;
}
}
r = sd_rtnl_message_neigh_get_family(message, &family);
- if (r < 0 || !IN_SET(family, AF_INET, AF_INET6)) {
- log_link_warning(link, "rtnl: received neighbor message with invalid family, ignoring.");
+ if (r < 0) {
+ log_link_warning(link, "rtnl: received neighbor message without family, ignoring.");
+ return 0;
+ } else if (!IN_SET(family, AF_INET, AF_INET6)) {
+ log_link_debug(link, "rtnl: received neighbor message with invalid family '%i', ignoring.", family);
return 0;
}
strnull(addr_str), strnull(lladdr_str));
(void) neighbor_free(neighbor);
} else
- log_link_info(link, "Kernel removed a neighbor we don't remember: %s->%s, ignoring.",
- strnull(addr_str), strnull(lladdr_str));
+ log_link_debug(link, "Kernel removed a neighbor we don't remember: %s->%s, ignoring.",
+ strnull(addr_str), strnull(lladdr_str));
break;
if (sd_netlink_message_is_error(message)) {
r = sd_netlink_message_get_errno(message);
if (r < 0)
- log_warning_errno(r, "rtnl: failed to receive address message, ignoring: %m");
+ log_message_warning_errno(message, r, "rtnl: failed to receive address message, ignoring");
return 0;
}
}
r = sd_rtnl_message_addr_get_family(message, &family);
- if (r < 0 || !IN_SET(family, AF_INET, AF_INET6)) {
- log_link_warning(link, "rtnl: received address message with invalid family, ignoring.");
+ if (r < 0) {
+ log_link_warning(link, "rtnl: received address message without family, ignoring.");
+ return 0;
+ } else if (!IN_SET(family, AF_INET, AF_INET6)) {
+ log_link_debug(link, "rtnl: received address message with invalid family '%i', ignoring.", family);
return 0;
}
valid_str ? "for " : "forever", strempty(valid_str));
(void) address_drop(address);
} else
- log_link_info(link, "Kernel removed an address we don't remember: %s/%u (valid %s%s), ignoring.",
- strnull(buf), prefixlen,
- valid_str ? "for " : "forever", strempty(valid_str));
+ log_link_debug(link, "Kernel removed an address we don't remember: %s/%u (valid %s%s), ignoring.",
+ strnull(buf), prefixlen,
+ valid_str ? "for " : "forever", strempty(valid_str));
break;
if (sd_netlink_message_is_error(message)) {
r = sd_netlink_message_get_errno(message);
if (r < 0)
- log_warning_errno(r, "rtnl: Could not receive link message, ignoring: %m");
+ log_message_warning_errno(message, r, "rtnl: Could not receive link message, ignoring");
return 0;
}
if (sd_netlink_message_is_error(message)) {
r = sd_netlink_message_get_errno(message);
if (r < 0)
- log_warning_errno(r, "rtnl: failed to receive rule message, ignoring: %m");
+ log_message_warning_errno(message, r, "rtnl: failed to receive rule message, ignoring");
return 0;
}
return 0;
}
+ r = sd_netlink_message_read(message, FRA_UID_RANGE, sizeof(tmp->uid_range), &tmp->uid_range);
+ if (r < 0 && r != -ENODATA) {
+ log_warning_errno(r, "rtnl: could not get FRA_UID_RANGE attribute, ignoring: %m");
+ return 0;
+ }
+
(void) routing_policy_rule_get(m, tmp, &rule);
if (DEBUG_LOGGING) {
return 1;
}
+int manager_rtnl_process_nexthop(sd_netlink *rtnl, sd_netlink_message *message, void *userdata) {
+ _cleanup_(nexthop_freep) NextHop *tmp = NULL;
+ _cleanup_free_ char *gateway = NULL;
+ NextHop *nexthop = NULL;
+ Manager *m = userdata;
+ Link *link = NULL;
+ uint16_t type;
+ int r;
+
+ assert(rtnl);
+ assert(message);
+ assert(m);
+
+ if (sd_netlink_message_is_error(message)) {
+ r = sd_netlink_message_get_errno(message);
+ if (r < 0)
+ log_message_warning_errno(message, r, "rtnl: failed to receive rule message, ignoring");
+
+ return 0;
+ }
+
+ r = sd_netlink_message_get_type(message, &type);
+ if (r < 0) {
+ log_warning_errno(r, "rtnl: could not get message type, ignoring: %m");
+ return 0;
+ } else if (!IN_SET(type, RTM_NEWNEXTHOP, RTM_DELNEXTHOP)) {
+ log_warning("rtnl: received unexpected message type %u when processing nexthop, ignoring.", type);
+ return 0;
+ }
+
+ r = nexthop_new(&tmp);
+ if (r < 0)
+ return log_oom();
+
+ r = sd_rtnl_message_get_family(message, &tmp->family);
+ if (r < 0) {
+ log_warning_errno(r, "rtnl: could not get nexthop family, ignoring: %m");
+ return 0;
+ } else if (!IN_SET(tmp->family, AF_INET, AF_INET6)) {
+ log_debug("rtnl: received nexthop message with invalid family %d, ignoring.", tmp->family);
+ return 0;
+ }
+
+ switch (tmp->family) {
+ case AF_INET:
+ r = sd_netlink_message_read_in_addr(message, NHA_GATEWAY, &tmp->gw.in);
+ if (r < 0 && r != -ENODATA) {
+ log_warning_errno(r, "rtnl: could not get NHA_GATEWAY attribute, ignoring: %m");
+ return 0;
+ }
+ break;
+
+ case AF_INET6:
+ r = sd_netlink_message_read_in6_addr(message, NHA_GATEWAY, &tmp->gw.in6);
+ if (r < 0 && r != -ENODATA) {
+ log_warning_errno(r, "rtnl: could not get NHA_GATEWAY attribute, ignoring: %m");
+ return 0;
+ }
+ break;
+
+ default:
+ assert_not_reached("Received rule message with unsupported address family");
+ }
+
+ r = sd_netlink_message_read_u32(message, NHA_ID, &tmp->id);
+ if (r < 0 && r != -ENODATA) {
+ log_warning_errno(r, "rtnl: could not get NHA_ID attribute, ignoring: %m");
+ return 0;
+ }
+
+ r = sd_netlink_message_read_u32(message, NHA_OIF, &tmp->oif);
+ if (r < 0 && r != -ENODATA) {
+ log_warning_errno(r, "rtnl: could not get NHA_OIF attribute, ignoring: %m");
+ return 0;
+ }
+
+ r = link_get(m, tmp->oif, &link);
+ if (r < 0 || !link) {
+ if (!m->enumerating)
+ log_warning("rtnl: received nexthop message for link (%d) we do not know about, ignoring", tmp->oif);
+ return 0;
+ }
+
+ (void) nexthop_get(link, tmp, &nexthop);
+
+ if (DEBUG_LOGGING)
+ (void) in_addr_to_string(tmp->family, &tmp->gw, &gateway);
+
+ switch (type) {
+ case RTM_NEWNEXTHOP:
+ if (!nexthop) {
+ log_debug("Remembering foreign nexthop: %s, oif: %d, id: %d", gateway, tmp->oif, tmp->id);
+ r = nexthop_add_foreign(link, tmp, &nexthop);
+ if (r < 0) {
+ log_warning_errno(r, "Could not remember foreign nexthop, ignoring: %m");
+ return 0;
+ }
+ }
+ break;
+ case RTM_DELNEXTHOP:
+ log_debug("Forgetting foreign nexthop: %s, oif: %d, id: %d", gateway, tmp->oif, tmp->id);
+ nexthop_free(nexthop);
+
+ break;
+
+ default:
+ assert_not_reached("Received invalid RTNL message type");
+ }
+
+ return 1;
+}
+
static int systemd_netlink_fd(void) {
int n, fd, rtnl_fd = -EINVAL;
if (r < 0)
return r;
+ r = sd_netlink_add_match(m->rtnl, NULL, RTM_NEWNEXTHOP, &manager_rtnl_process_nexthop, NULL, m, "network-rtnl_process_nexthop");
+ if (r < 0)
+ return r;
+
+ r = sd_netlink_add_match(m->rtnl, NULL, RTM_DELNEXTHOP, &manager_rtnl_process_nexthop, NULL, m, "network-rtnl_process_nexthop");
+ if (r < 0)
+ return r;
+
return 0;
}
/* update timestamp */
paths_check_timestamp(NETWORK_DIRS, &m->network_dirs_ts_usec, true);
- r = netdev_load(m);
+ r = netdev_load(m, false);
if (r < 0)
return r;
- r = network_load(m);
+ r = network_load(m, &m->networks);
if (r < 0)
return r;
return r;
}
+int manager_rtnl_enumerate_nexthop(Manager *m) {
+ _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL;
+ sd_netlink_message *nexthop;
+ int r;
+
+ assert(m);
+ assert(m->rtnl);
+
+ r = sd_rtnl_message_new_nexthop(m->rtnl, &req, RTM_GETNEXTHOP, 0, 0);
+ if (r < 0)
+ return r;
+
+ r = sd_netlink_message_request_dump(req, true);
+ if (r < 0)
+ return r;
+
+ r = sd_netlink_call(m->rtnl, req, 0, &reply);
+ if (r < 0) {
+ if (r == -EOPNOTSUPP) {
+ log_debug("Nexthop are not supported by the kernel. Ignoring.");
+ return 0;
+ }
+
+ return r;
+ }
+
+ for (nexthop = reply; nexthop; nexthop = sd_netlink_message_next(nexthop)) {
+ int k;
+
+ m->enumerating = true;
+
+ k = manager_rtnl_process_nexthop(m->rtnl, nexthop, m);
+ if (k < 0)
+ r = k;
+
+ m->enumerating = false;
+ }
+
+ return r;
+}
+
int manager_address_pool_acquire(Manager *m, int family, unsigned prefixlen, union in_addr_union *found) {
AddressPool *p;
int r;
projects / thirdparty / systemd.git / blobdiff