lib/netdev-linux.h \
lib/netdev-vport.c \
lib/netdev-vport.h \
+ lib/netlink-notifier.c \
+ lib/netlink-notifier.h \
lib/netlink-protocol.h \
lib/netlink-socket.c \
lib/netlink-socket.h \
- lib/rtnetlink.c \
- lib/rtnetlink.h \
lib/rtnetlink-link.c \
lib/rtnetlink-link.h \
lib/route-table.c \
#include "netdev.h"
#include "netdev-linux.h"
#include "netdev-vport.h"
+#include "netlink-notifier.h"
#include "netlink-socket.h"
#include "netlink.h"
#include "odp-util.h"
#include "openvswitch/tunnel.h"
#include "packets.h"
#include "poll-loop.h"
-#include "rtnetlink.h"
#include "rtnetlink-link.h"
#include "shash.h"
#include "sset.h"
#include "netdev-provider.h"
#include "netdev-vport.h"
#include "netlink.h"
+#include "netlink-notifier.h"
#include "netlink-socket.h"
#include "ofpbuf.h"
#include "openflow/openflow.h"
#include "packets.h"
#include "poll-loop.h"
-#include "rtnetlink.h"
#include "rtnetlink-link.h"
#include "socket-util.h"
#include "shash.h"
#include "netdev-linux.h"
#include "netdev-provider.h"
#include "netlink.h"
+#include "netlink-notifier.h"
#include "netlink-socket.h"
#include "ofpbuf.h"
#include "openvswitch/datapath-protocol.h"
#include "openvswitch/tunnel.h"
#include "packets.h"
#include "route-table.h"
-#include "rtnetlink.h"
#include "shash.h"
#include "socket-util.h"
#include "vlog.h"
--- /dev/null
+/*
+ * Copyright (c) 2009, 2010, 2011 Nicira Networks.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <config.h>
+
+#include "netlink-notifier.h"
+
+#include <errno.h>
+#include <poll.h>
+#include <stdlib.h>
+
+#include "coverage.h"
+#include "netlink.h"
+#include "netlink-socket.h"
+#include "ofpbuf.h"
+#include "vlog.h"
+
+VLOG_DEFINE_THIS_MODULE(rtnetlink);
+
+COVERAGE_DEFINE(rtnetlink_changed);
+
+static void rtnetlink_report(struct rtnetlink *rtn, void *change);
+
+struct rtnetlink {
+ struct nl_sock *notify_sock; /* Rtnetlink socket. */
+ struct list all_notifiers; /* All rtnetlink notifiers. */
+ bool has_run; /* Guard for run and wait functions. */
+
+ /* Passed in by rtnetlink_create(). */
+ int multicast_group; /* Multicast group we listen on. */
+ rtnetlink_parse_func *parse; /* Message parsing function. */
+ void *change; /* Change passed to parse. */
+};
+
+/* Creates an rtnetlink handle which may be used to manage change
+ * notifications. The created handle will listen for rtnetlink messages on
+ * 'multicast_group'. Incoming messages will be parsed with 'parse' which will
+ * be passed 'change' as an argument. */
+struct rtnetlink *
+rtnetlink_create(int multicast_group, rtnetlink_parse_func *parse,
+ void *change)
+{
+ struct rtnetlink *rtn;
+
+ rtn = xzalloc(sizeof *rtn);
+ rtn->notify_sock = NULL;
+ rtn->multicast_group = multicast_group;
+ rtn->parse = parse;
+ rtn->change = change;
+ rtn->has_run = false;
+
+ list_init(&rtn->all_notifiers);
+ return rtn;
+}
+
+/* Destroys 'rtn' by freeing any memory it has reserved and closing any sockets
+ * it has opened. */
+void
+rtnetlink_destroy(struct rtnetlink *rtn)
+{
+ if (rtn) {
+ nl_sock_destroy(rtn->notify_sock);
+ free(rtn);
+ }
+}
+
+/* Registers 'cb' to be called with auxiliary data 'aux' with change
+ * notifications. The notifier is stored in 'notifier', which the caller must
+ * not modify or free.
+ *
+ * This is probably not the function you want. You should probably be using
+ * message specific notifiers like rtnetlink_link_notifier_register().
+ *
+ * Returns 0 if successful, otherwise a positive errno value. */
+int
+rtnetlink_notifier_register(struct rtnetlink *rtn,
+ struct rtnetlink_notifier *notifier,
+ rtnetlink_notify_func *cb, void *aux)
+{
+ if (!rtn->notify_sock) {
+ struct nl_sock *sock;
+ int error;
+
+ error = nl_sock_create(NETLINK_ROUTE, &sock);
+ if (!error) {
+ error = nl_sock_join_mcgroup(sock, rtn->multicast_group);
+ }
+ if (error) {
+ nl_sock_destroy(sock);
+ VLOG_WARN("could not create rtnetlink socket: %s",
+ strerror(error));
+ return error;
+ }
+ rtn->notify_sock = sock;
+ } else {
+ /* Catch up on notification work so that the new notifier won't
+ * receive any stale notifications. */
+ rtnetlink_notifier_run(rtn);
+ }
+
+ list_push_back(&rtn->all_notifiers, ¬ifier->node);
+ notifier->cb = cb;
+ notifier->aux = aux;
+ return 0;
+}
+
+/* Cancels notification on 'notifier', which must have previously been
+ * registered with rtnetlink_notifier_register(). */
+void
+rtnetlink_notifier_unregister(struct rtnetlink *rtn,
+ struct rtnetlink_notifier *notifier)
+{
+ list_remove(¬ifier->node);
+ if (list_is_empty(&rtn->all_notifiers)) {
+ nl_sock_destroy(rtn->notify_sock);
+ rtn->notify_sock = NULL;
+ }
+}
+
+/* Calls all of the registered notifiers, passing along any as-yet-unreported
+ * change events. */
+void
+rtnetlink_notifier_run(struct rtnetlink *rtn)
+{
+ static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
+
+ if (!rtn->notify_sock || rtn->has_run) {
+ return;
+ }
+
+ rtn->has_run = true;
+ for (;;) {
+ struct ofpbuf *buf;
+ int error;
+
+ error = nl_sock_recv(rtn->notify_sock, &buf, false);
+ if (!error) {
+ if (rtn->parse(buf, rtn->change)) {
+ rtnetlink_report(rtn, rtn->change);
+ } else {
+ VLOG_WARN_RL(&rl, "received bad rtnl message");
+ rtnetlink_report(rtn, NULL);
+ }
+ ofpbuf_delete(buf);
+ } else if (error == EAGAIN) {
+ return;
+ } else {
+ if (error == ENOBUFS) {
+ VLOG_WARN_RL(&rl, "rtnetlink receive buffer overflowed");
+ } else {
+ VLOG_WARN_RL(&rl, "error reading rtnetlink socket: %s",
+ strerror(error));
+ }
+ rtnetlink_report(rtn, NULL);
+ }
+ }
+}
+
+/* Causes poll_block() to wake up when change notifications are ready. */
+void
+rtnetlink_notifier_wait(struct rtnetlink *rtn)
+{
+ rtn->has_run = false;
+ if (rtn->notify_sock) {
+ nl_sock_wait(rtn->notify_sock, POLLIN);
+ }
+}
+
+static void
+rtnetlink_report(struct rtnetlink *rtn, void *change)
+{
+ struct rtnetlink_notifier *notifier;
+
+ if (change) {
+ COVERAGE_INC(rtnetlink_changed);
+ }
+
+ LIST_FOR_EACH (notifier, node, &rtn->all_notifiers) {
+ notifier->cb(change, notifier->aux);
+ }
+}
+
--- /dev/null
+/*
+ * Copyright (c) 2009 Nicira Networks.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef RTNETLINK_H
+#define RTNETLINK_H 1
+
+/* These functions are Linux specific, so they should be used directly only by
+ * Linux-specific code. */
+
+#include "list.h"
+
+struct rtnetlink;
+struct nlattr;
+struct ofpbuf;
+
+/* Function called to report rtnetlink notifications. 'change' describes the
+ * specific change filled out by an rtnetlink_parse_func. It may be null if
+ * the buffer of change information overflowed, in which case the function must
+ * assume that everything may have changed. 'aux' is as specified in
+ * rtnetlink_notifier_register().
+ */
+typedef void rtnetlink_notify_func(const void *change, void *aux);
+
+/* Function called to parse incoming rtnetlink notifications. The 'buf'
+ * message should be parsed into 'change' as specified in rtnetlink_create().
+ */
+typedef bool rtnetlink_parse_func(struct ofpbuf *buf, void *change);
+
+struct rtnetlink_notifier {
+ struct list node;
+ rtnetlink_notify_func *cb;
+ void *aux;
+};
+
+struct rtnetlink *rtnetlink_create(int multicast_group,
+ rtnetlink_parse_func *,
+ void *change);
+void rtnetlink_destroy(struct rtnetlink *rtn);
+int rtnetlink_notifier_register(struct rtnetlink *,
+ struct rtnetlink_notifier *,
+ rtnetlink_notify_func *, void *aux);
+void rtnetlink_notifier_unregister(struct rtnetlink *,
+ struct rtnetlink_notifier *);
+void rtnetlink_notifier_run(struct rtnetlink *);
+void rtnetlink_notifier_wait(struct rtnetlink *);
+#endif /* rtnetlink.h */
#include "hash.h"
#include "hmap.h"
#include "netlink.h"
+#include "netlink-notifier.h"
#include "netlink-socket.h"
#include "ofpbuf.h"
-#include "rtnetlink.h"
#include "rtnetlink-link.h"
#include "vlog.h"
#include <net/if.h>
#include "netlink.h"
+#include "netlink-notifier.h"
#include "ofpbuf.h"
-#include "rtnetlink.h"
static struct rtnetlink *rtn = NULL;
static struct rtnetlink_link_change rtn_change;
+++ /dev/null
-/*
- * Copyright (c) 2009, 2010, 2011 Nicira Networks.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <config.h>
-
-#include "rtnetlink.h"
-
-#include <errno.h>
-#include <poll.h>
-#include <stdlib.h>
-
-#include "coverage.h"
-#include "netlink.h"
-#include "netlink-socket.h"
-#include "ofpbuf.h"
-#include "vlog.h"
-
-VLOG_DEFINE_THIS_MODULE(rtnetlink);
-
-COVERAGE_DEFINE(rtnetlink_changed);
-
-static void rtnetlink_report(struct rtnetlink *rtn, void *change);
-
-struct rtnetlink {
- struct nl_sock *notify_sock; /* Rtnetlink socket. */
- struct list all_notifiers; /* All rtnetlink notifiers. */
- bool has_run; /* Guard for run and wait functions. */
-
- /* Passed in by rtnetlink_create(). */
- int multicast_group; /* Multicast group we listen on. */
- rtnetlink_parse_func *parse; /* Message parsing function. */
- void *change; /* Change passed to parse. */
-};
-
-/* Creates an rtnetlink handle which may be used to manage change
- * notifications. The created handle will listen for rtnetlink messages on
- * 'multicast_group'. Incoming messages will be parsed with 'parse' which will
- * be passed 'change' as an argument. */
-struct rtnetlink *
-rtnetlink_create(int multicast_group, rtnetlink_parse_func *parse,
- void *change)
-{
- struct rtnetlink *rtn;
-
- rtn = xzalloc(sizeof *rtn);
- rtn->notify_sock = NULL;
- rtn->multicast_group = multicast_group;
- rtn->parse = parse;
- rtn->change = change;
- rtn->has_run = false;
-
- list_init(&rtn->all_notifiers);
- return rtn;
-}
-
-/* Destroys 'rtn' by freeing any memory it has reserved and closing any sockets
- * it has opened. */
-void
-rtnetlink_destroy(struct rtnetlink *rtn)
-{
- if (rtn) {
- nl_sock_destroy(rtn->notify_sock);
- free(rtn);
- }
-}
-
-/* Registers 'cb' to be called with auxiliary data 'aux' with change
- * notifications. The notifier is stored in 'notifier', which the caller must
- * not modify or free.
- *
- * This is probably not the function you want. You should probably be using
- * message specific notifiers like rtnetlink_link_notifier_register().
- *
- * Returns 0 if successful, otherwise a positive errno value. */
-int
-rtnetlink_notifier_register(struct rtnetlink *rtn,
- struct rtnetlink_notifier *notifier,
- rtnetlink_notify_func *cb, void *aux)
-{
- if (!rtn->notify_sock) {
- struct nl_sock *sock;
- int error;
-
- error = nl_sock_create(NETLINK_ROUTE, &sock);
- if (!error) {
- error = nl_sock_join_mcgroup(sock, rtn->multicast_group);
- }
- if (error) {
- nl_sock_destroy(sock);
- VLOG_WARN("could not create rtnetlink socket: %s",
- strerror(error));
- return error;
- }
- rtn->notify_sock = sock;
- } else {
- /* Catch up on notification work so that the new notifier won't
- * receive any stale notifications. */
- rtnetlink_notifier_run(rtn);
- }
-
- list_push_back(&rtn->all_notifiers, ¬ifier->node);
- notifier->cb = cb;
- notifier->aux = aux;
- return 0;
-}
-
-/* Cancels notification on 'notifier', which must have previously been
- * registered with rtnetlink_notifier_register(). */
-void
-rtnetlink_notifier_unregister(struct rtnetlink *rtn,
- struct rtnetlink_notifier *notifier)
-{
- list_remove(¬ifier->node);
- if (list_is_empty(&rtn->all_notifiers)) {
- nl_sock_destroy(rtn->notify_sock);
- rtn->notify_sock = NULL;
- }
-}
-
-/* Calls all of the registered notifiers, passing along any as-yet-unreported
- * change events. */
-void
-rtnetlink_notifier_run(struct rtnetlink *rtn)
-{
- static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
-
- if (!rtn->notify_sock || rtn->has_run) {
- return;
- }
-
- rtn->has_run = true;
- for (;;) {
- struct ofpbuf *buf;
- int error;
-
- error = nl_sock_recv(rtn->notify_sock, &buf, false);
- if (!error) {
- if (rtn->parse(buf, rtn->change)) {
- rtnetlink_report(rtn, rtn->change);
- } else {
- VLOG_WARN_RL(&rl, "received bad rtnl message");
- rtnetlink_report(rtn, NULL);
- }
- ofpbuf_delete(buf);
- } else if (error == EAGAIN) {
- return;
- } else {
- if (error == ENOBUFS) {
- VLOG_WARN_RL(&rl, "rtnetlink receive buffer overflowed");
- } else {
- VLOG_WARN_RL(&rl, "error reading rtnetlink socket: %s",
- strerror(error));
- }
- rtnetlink_report(rtn, NULL);
- }
- }
-}
-
-/* Causes poll_block() to wake up when change notifications are ready. */
-void
-rtnetlink_notifier_wait(struct rtnetlink *rtn)
-{
- rtn->has_run = false;
- if (rtn->notify_sock) {
- nl_sock_wait(rtn->notify_sock, POLLIN);
- }
-}
-
-static void
-rtnetlink_report(struct rtnetlink *rtn, void *change)
-{
- struct rtnetlink_notifier *notifier;
-
- if (change) {
- COVERAGE_INC(rtnetlink_changed);
- }
-
- LIST_FOR_EACH (notifier, node, &rtn->all_notifiers) {
- notifier->cb(change, notifier->aux);
- }
-}
-
+++ /dev/null
-/*
- * Copyright (c) 2009 Nicira Networks.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef RTNETLINK_H
-#define RTNETLINK_H 1
-
-/* These functions are Linux specific, so they should be used directly only by
- * Linux-specific code. */
-
-#include "list.h"
-
-struct rtnetlink;
-struct nlattr;
-struct ofpbuf;
-
-/* Function called to report rtnetlink notifications. 'change' describes the
- * specific change filled out by an rtnetlink_parse_func. It may be null if
- * the buffer of change information overflowed, in which case the function must
- * assume that everything may have changed. 'aux' is as specified in
- * rtnetlink_notifier_register().
- */
-typedef void rtnetlink_notify_func(const void *change, void *aux);
-
-/* Function called to parse incoming rtnetlink notifications. The 'buf'
- * message should be parsed into 'change' as specified in rtnetlink_create().
- */
-typedef bool rtnetlink_parse_func(struct ofpbuf *buf, void *change);
-
-struct rtnetlink_notifier {
- struct list node;
- rtnetlink_notify_func *cb;
- void *aux;
-};
-
-struct rtnetlink *rtnetlink_create(int multicast_group,
- rtnetlink_parse_func *,
- void *change);
-void rtnetlink_destroy(struct rtnetlink *rtn);
-int rtnetlink_notifier_register(struct rtnetlink *,
- struct rtnetlink_notifier *,
- rtnetlink_notify_func *, void *aux);
-void rtnetlink_notifier_unregister(struct rtnetlink *,
- struct rtnetlink_notifier *);
-void rtnetlink_notifier_run(struct rtnetlink *);
-void rtnetlink_notifier_wait(struct rtnetlink *);
-#endif /* rtnetlink.h */
#include "leak-checker.h"
#include "netdev.h"
#include "netlink.h"
+#include "netlink-notifier.h"
#include "netlink-socket.h"
#include "ofpbuf.h"
#include "openvswitch/brcompat-netlink.h"
#include "packets.h"
#include "poll-loop.h"
#include "process.h"
-#include "rtnetlink.h"
#include "rtnetlink-link.h"
#include "signals.h"
#include "sset.h"
projects / openvswitch / commitdiff