rdisc: make NMRDisc namespace aware
authorThomas Haller <thaller@redhat.com>
Tue, 8 Mar 2016 12:11:36 +0000 (13:11 +0100)
committerThomas Haller <thaller@redhat.com>
Tue, 15 Mar 2016 11:56:58 +0000 (12:56 +0100)
src/devices/nm-device.c
src/nm-iface-helper.c
src/nm-types.h
src/rdisc/nm-lndp-rdisc.c
src/rdisc/nm-lndp-rdisc.h
src/rdisc/nm-rdisc.c
src/rdisc/nm-rdisc.h
src/rdisc/tests/test-rdisc-linux.c

index ec63147..51a84bf 100644 (file)
@@ -5849,7 +5849,8 @@ addrconf6_start (NMDevice *self, NMSettingIP6ConfigPrivacy use_tempaddr)
        s_ip6 = NM_SETTING_IP6_CONFIG (nm_connection_get_setting_ip6_config (connection));
        g_assert (s_ip6);
 
-       priv->rdisc = nm_lndp_rdisc_new (nm_device_get_ip_ifindex (self),
+       priv->rdisc = nm_lndp_rdisc_new (NM_PLATFORM_GET,
+                                        nm_device_get_ip_ifindex (self),
                                         nm_device_get_ip_iface (self),
                                         nm_connection_get_uuid (connection),
                                         nm_setting_ip6_config_get_addr_gen_mode (s_ip6),
index dab0ec5..5a69753 100644 (file)
@@ -470,7 +470,7 @@ main (int argc, char *argv[])
        if (global_opt.slaac) {
                nm_platform_link_set_user_ipv6ll_enabled (NM_PLATFORM_GET, ifindex, TRUE);
 
-               rdisc = nm_lndp_rdisc_new (ifindex, global_opt.ifname, global_opt.uuid, global_opt.addr_gen_mode, NULL);
+               rdisc = nm_lndp_rdisc_new (NM_PLATFORM_GET, ifindex, global_opt.ifname, global_opt.uuid, global_opt.addr_gen_mode, NULL);
                g_assert (rdisc);
 
                if (iid)
index 6722e39..997723e 100644 (file)
@@ -74,6 +74,7 @@ typedef enum {
 } NMIPConfigSource;
 
 /* platform */
+typedef struct _NMPlatform           NMPlatform;
 typedef struct _NMPlatformIP4Address NMPlatformIP4Address;
 typedef struct _NMPlatformIP4Route   NMPlatformIP4Route;
 typedef struct _NMPlatformIP6Address NMPlatformIP6Address;
index 0686346..27fd2f8 100644 (file)
@@ -31,6 +31,7 @@
 
 #include "NetworkManagerUtils.h"
 #include "nm-platform.h"
+#include "nmp-netns.h"
 
 #define _NMLOG_PREFIX_NAME                "rdisc-lndp"
 
@@ -273,9 +274,14 @@ receive_ra (struct ndp *ndp, struct ndp_msg *msg, gpointer user_data)
 static gboolean
 event_ready (GIOChannel *source, GIOCondition condition, NMRDisc *rdisc)
 {
+       nm_auto_pop_netns NMPNetns *netns = NULL;
        NMLNDPRDiscPrivate *priv = NM_LNDP_RDISC_GET_PRIVATE (rdisc);
 
        _LOGD ("processing libndp events");
+
+       if (!nm_rdisc_netns_push (rdisc, &netns))
+               return G_SOURCE_CONTINUE;
+
        ndp_callall_eventfd_handler (priv->ndp);
        return G_SOURCE_CONTINUE;
 }
@@ -298,40 +304,50 @@ start (NMRDisc *rdisc)
 /******************************************************************/
 
 static inline gint32
-ipv6_sysctl_get (const char *ifname, const char *property, gint32 defval)
+ipv6_sysctl_get (NMPlatform *platform, const char *ifname, const char *property, gint32 defval)
 {
-       return nm_platform_sysctl_get_int32 (NM_PLATFORM_GET, nm_utils_ip6_property_path (ifname, property), defval);
+       return nm_platform_sysctl_get_int32 (platform, nm_utils_ip6_property_path (ifname, property), defval);
 }
 
 NMRDisc *
-nm_lndp_rdisc_new (int ifindex,
+nm_lndp_rdisc_new (NMPlatform *platform,
+                   int ifindex,
                    const char *ifname,
                    const char *uuid,
                    NMSettingIP6ConfigAddrGenMode addr_gen_mode,
                    GError **error)
 {
+       nm_auto_pop_netns NMPNetns *netns = NULL;
        NMRDisc *rdisc;
        NMLNDPRDiscPrivate *priv;
        int errsv;
 
+       g_return_val_if_fail (NM_IS_PLATFORM (platform), NULL);
        g_return_val_if_fail (!error || !*error, NULL);
 
-       rdisc = g_object_new (NM_TYPE_LNDP_RDISC, NULL);
+       if (!nm_platform_netns_push (platform, &netns))
+               return NULL;
+
+       rdisc = g_object_new (NM_TYPE_LNDP_RDISC,
+                             NM_RDISC_PLATFORM, platform,
+                             NULL);
 
        rdisc->ifindex = ifindex;
        rdisc->ifname = g_strdup (ifname);
        rdisc->uuid = g_strdup (uuid);
        rdisc->addr_gen_mode = addr_gen_mode;
 
-       rdisc->max_addresses = ipv6_sysctl_get (ifname, "max_addresses",
+       rdisc->max_addresses = ipv6_sysctl_get (platform, ifname, "max_addresses",
                                                NM_RDISC_MAX_ADDRESSES_DEFAULT);
-       rdisc->rtr_solicitations = ipv6_sysctl_get (ifname, "router_solicitations",
+       rdisc->rtr_solicitations = ipv6_sysctl_get (platform, ifname, "router_solicitations",
                                                    NM_RDISC_RTR_SOLICITATIONS_DEFAULT);
-       rdisc->rtr_solicitation_interval = ipv6_sysctl_get (ifname, "router_solicitation_interval",
+       rdisc->rtr_solicitation_interval = ipv6_sysctl_get (platform, ifname, "router_solicitation_interval",
                                                            NM_RDISC_RTR_SOLICITATION_INTERVAL_DEFAULT);
 
        priv = NM_LNDP_RDISC_GET_PRIVATE (rdisc);
+
        errsv = ndp_open (&priv->ndp);
+
        if (errsv != 0) {
                errsv = errsv > 0 ? errsv : -errsv;
                g_set_error (error, NM_UTILS_ERROR, NM_UTILS_ERROR_UNKNOWN,
index e6706e3..4c7c474 100644 (file)
@@ -44,7 +44,8 @@ typedef struct {
 
 GType nm_lndp_rdisc_get_type (void);
 
-NMRDisc *nm_lndp_rdisc_new (int ifindex,
+NMRDisc *nm_lndp_rdisc_new (NMPlatform *platform,
+                            int ifindex,
                             const char *ifname,
                             const char *uuid,
                             NMSettingIP6ConfigAddrGenMode addr_gen_mode,
index 7500d36..7abcb70 100644 (file)
@@ -28,6 +28,8 @@
 #include "nm-rdisc-private.h"
 
 #include "nm-utils.h"
+#include "nm-platform.h"
+#include "nmp-netns.h"
 
 #include <nm-setting-ip6-config.h>
 
@@ -46,6 +48,10 @@ typedef struct {
 
 G_DEFINE_TYPE (NMRDisc, nm_rdisc, G_TYPE_OBJECT)
 
+NM_GOBJECT_PROPERTIES_DEFINE_BASE (
+       PROP_PLATFORM,
+);
+
 enum {
        CONFIG_CHANGED,
        RA_TIMEOUT,
@@ -56,6 +62,31 @@ static guint signals[LAST_SIGNAL] = { 0 };
 
 /******************************************************************/
 
+NMPNetns *
+nm_rdisc_netns_get (NMRDisc *self)
+{
+       g_return_val_if_fail (NM_IS_RDISC (self), NULL);
+
+       return self->_netns;
+}
+
+gboolean
+nm_rdisc_netns_push (NMRDisc *self, NMPNetns **netns)
+{
+       g_return_val_if_fail (NM_IS_RDISC (self), FALSE);
+
+       if (   self->_netns
+           && !nmp_netns_push (self->_netns)) {
+               NM_SET_OUT (netns, NULL);
+               return FALSE;
+       }
+
+       NM_SET_OUT (netns, self->_netns);
+       return TRUE;
+}
+
+/******************************************************************/
+
 gboolean
 nm_rdisc_add_gateway (NMRDisc *rdisc, const NMRDiscGateway *new)
 {
@@ -317,10 +348,14 @@ nm_rdisc_set_iid (NMRDisc *rdisc, const NMUtilsIPv6IfaceId iid)
 static gboolean
 send_rs (NMRDisc *rdisc)
 {
+       nm_auto_pop_netns NMPNetns *netns = NULL;
        NMRDiscClass *klass = NM_RDISC_GET_CLASS (rdisc);
        NMRDiscPrivate *priv = NM_RDISC_GET_PRIVATE (rdisc);
        GError *error = NULL;
 
+       if (!nm_rdisc_netns_push (rdisc, &netns))
+               return G_SOURCE_REMOVE;
+
        if (klass->send_rs (rdisc, &error)) {
                _LOGD ("router solicitation sent");
                priv->solicitations_left--;
@@ -383,6 +418,7 @@ rdisc_ra_timeout_cb (gpointer user_data)
 void
 nm_rdisc_start (NMRDisc *rdisc)
 {
+       nm_auto_pop_netns NMPNetns *netns = NULL;
        NMRDiscPrivate *priv = NM_RDISC_GET_PRIVATE (rdisc);
        NMRDiscClass *klass = NM_RDISC_GET_CLASS (rdisc);
        guint ra_wait_secs;
@@ -391,6 +427,9 @@ nm_rdisc_start (NMRDisc *rdisc)
 
        _LOGD ("starting router discovery: %d", rdisc->ifindex);
 
+       if (!nm_rdisc_netns_push (rdisc, &netns))
+               return;
+
        nm_clear_g_source (&priv->ra_timeout_id);
        ra_wait_secs = CLAMP (rdisc->rtr_solicitations * rdisc->rtr_solicitation_interval, 30, 120);
        priv->ra_timeout_id = g_timeout_add_seconds (ra_wait_secs, rdisc_ra_timeout_cb, rdisc);
@@ -668,11 +707,42 @@ dns_domain_free (gpointer data)
        g_free (((NMRDiscDNSDomain *)(data))->domain);
 }
 
+static void
+set_property (GObject *object, guint prop_id,
+              const GValue *value, GParamSpec *pspec)
+{
+       NMRDisc *self = NM_RDISC (object);
+
+       switch (prop_id) {
+       case PROP_PLATFORM:
+               /* construct-only */
+               self->_platform = g_value_get_object (value) ? : NM_PLATFORM_GET;
+               if (!self->_platform)
+                       g_return_if_reached ();
+
+               g_object_ref (self->_platform);
+
+               self->_netns = nm_platform_netns_get (self->_platform);
+               if (self->_netns)
+                       g_object_ref (self->_netns);
+
+               g_return_if_fail (!self->_netns || self->_netns == nmp_netns_get_current ());
+               break;
+       default:
+               G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+               break;
+       }
+}
+
 static void
 nm_rdisc_init (NMRDisc *rdisc)
 {
        NMRDiscPrivate *priv = NM_RDISC_GET_PRIVATE (rdisc);
 
+       rdisc->_netns = nmp_netns_get_current ();
+       if (rdisc->_netns)
+               g_object_ref (rdisc->_netns);
+
        rdisc->gateways = g_array_new (FALSE, FALSE, sizeof (NMRDiscGateway));
        rdisc->addresses = g_array_new (FALSE, FALSE, sizeof (NMRDiscAddress));
        rdisc->routes = g_array_new (FALSE, FALSE, sizeof (NMRDiscRoute));
@@ -715,6 +785,9 @@ finalize (GObject *object)
        g_array_unref (rdisc->dns_servers);
        g_array_unref (rdisc->dns_domains);
 
+       g_clear_object (&rdisc->_netns);
+       g_clear_object (&rdisc->_platform);
+
        G_OBJECT_CLASS (nm_rdisc_parent_class)->finalize (object);
 }
 
@@ -725,10 +798,19 @@ nm_rdisc_class_init (NMRDiscClass *klass)
 
        g_type_class_add_private (klass, sizeof (NMRDiscPrivate));
 
+       object_class->set_property = set_property;
        object_class->dispose = dispose;
        object_class->finalize = finalize;
        klass->config_changed = config_changed;
 
+       obj_properties[PROP_PLATFORM] =
+           g_param_spec_object (NM_RDISC_PLATFORM, "", "",
+                                NM_TYPE_PLATFORM,
+                                G_PARAM_WRITABLE |
+                                G_PARAM_CONSTRUCT_ONLY |
+                                G_PARAM_STATIC_STRINGS);
+       g_object_class_install_properties (object_class, _PROPERTY_ENUMS_LAST, obj_properties);
+
        signals[CONFIG_CHANGED] =
            g_signal_new (NM_RDISC_CONFIG_CHANGED,
                          G_OBJECT_CLASS_TYPE (klass),
index 51e2602..5b97bec 100644 (file)
 #ifndef __NETWORKMANAGER_RDISC_H__
 #define __NETWORKMANAGER_RDISC_H__
 
-
 #include <stdlib.h>
 #include <netinet/in.h>
 
-#include "nm-default.h"
 #include "nm-setting-ip6-config.h"
 #include "NetworkManagerUtils.h"
 
@@ -36,6 +34,7 @@
 #define NM_IS_RDISC_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), NM_TYPE_RDISC))
 #define NM_RDISC_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), NM_TYPE_RDISC, NMRDiscClass))
 
+#define NM_RDISC_PLATFORM       "platform"
 #define NM_RDISC_CONFIG_CHANGED "config-changed"
 #define NM_RDISC_RA_TIMEOUT     "ra-timeout"
 
@@ -114,6 +113,9 @@ typedef enum {
 typedef struct {
        GObject parent;
 
+       NMPlatform *_platform;
+       NMPNetns *_netns;
+
        int ifindex;
        char *ifname;
        char *uuid;
@@ -149,4 +151,8 @@ gboolean nm_rdisc_set_iid (NMRDisc *rdisc, const NMUtilsIPv6IfaceId iid);
 void nm_rdisc_start (NMRDisc *rdisc);
 void nm_rdisc_dad_failed (NMRDisc *rdisc, struct in6_addr *address);
 
+NMPlatform *nm_rdisc_get_platform (NMRDisc *self);
+NMPNetns *nm_rdisc_netns_get (NMRDisc *self);
+gboolean nm_rdisc_netns_push (NMRDisc *self, NMPNetns **netns);
+
 #endif /* __NETWORKMANAGER_RDISC_H__ */
index bbdb5fb..e22eb1a 100644 (file)
@@ -61,7 +61,8 @@ main (int argc, char **argv)
                return EXIT_FAILURE;
        }
 
-       rdisc = nm_lndp_rdisc_new (ifindex,
+       rdisc = nm_lndp_rdisc_new (NM_PLATFORM_GET,
+                                  ifindex,
                                   ifname,
                                   "8ce666e8-d34d-4fb1-b858-f15a7al28086",
                                   NM_SETTING_IP6_CONFIG_ADDR_GEN_MODE_EUI64,