diff options
Diffstat (limited to 'src/platform/nm-linux-platform.c')
-rw-r--r-- | src/platform/nm-linux-platform.c | 209 |
1 files changed, 180 insertions, 29 deletions
diff --git a/src/platform/nm-linux-platform.c b/src/platform/nm-linux-platform.c index f62108e209..5f80bc36c6 100644 --- a/src/platform/nm-linux-platform.c +++ b/src/platform/nm-linux-platform.c @@ -76,6 +76,8 @@ typedef struct { G_DEFINE_TYPE (NMLinuxPlatform, nm_linux_platform, NM_TYPE_PLATFORM) +static const char *to_string_object (NMPlatform *platform, struct nl_object *obj); + void nm_linux_platform_setup (void) { @@ -781,15 +783,15 @@ udev_get_driver (NMPlatform *platform, GUdevDevice *device, int ifindex) return driver; } -static void +static gboolean init_link (NMPlatform *platform, NMPlatformLink *info, struct rtnl_link *rtnllink) { NMLinuxPlatformPrivate *priv = NM_LINUX_PLATFORM_GET_PRIVATE (platform); GUdevDevice *udev_device; - memset (info, 0, sizeof (*info)); + g_return_val_if_fail (rtnllink, FALSE); - g_assert (rtnllink); + memset (info, 0, sizeof (*info)); info->ifindex = rtnl_link_get_ifindex (rtnllink); g_strlcpy (info->name, rtnl_link_get_name (rtnllink), sizeof (info->name)); @@ -812,6 +814,8 @@ init_link (NMPlatform *platform, NMPlatformLink *info, struct rtnl_link *rtnllin info->driver = "unknown"; info->udi = g_udev_device_get_sysfs_path (udev_device); } + + return TRUE; } /* Hack: Empty bridges and bonds have IFF_LOWER_UP flag and therefore they break @@ -858,13 +862,13 @@ hack_empty_master_iff_lower_up (NMPlatform *platform, struct nl_object *object) rtnl_link_unset_flags (rtnllink, IFF_LOWER_UP); } -static void +static gboolean init_ip4_address (NMPlatformIP4Address *address, struct rtnl_addr *rtnladdr) { struct nl_addr *nladdr = rtnl_addr_get_local (rtnladdr); struct nl_addr *nlpeer = rtnl_addr_get_peer (rtnladdr); - g_assert (nladdr); + g_return_val_if_fail (nladdr, FALSE); memset (address, 0, sizeof (*address)); @@ -873,15 +877,23 @@ init_ip4_address (NMPlatformIP4Address *address, struct rtnl_addr *rtnladdr) address->timestamp = nm_utils_get_monotonic_timestamp_s (); address->lifetime = rtnl_addr_get_valid_lifetime (rtnladdr); address->preferred = rtnl_addr_get_preferred_lifetime (rtnladdr); - g_assert (nl_addr_get_len (nladdr) == sizeof (address->address)); + if (!nladdr || nl_addr_get_len (nladdr) != sizeof (address->address)) { + g_return_val_if_reached (FALSE); + return FALSE; + } memcpy (&address->address, nl_addr_get_binary_addr (nladdr), sizeof (address->address)); if (nlpeer) { - g_assert (nl_addr_get_len (nlpeer) == sizeof (address->peer_address)); + if (nl_addr_get_len (nlpeer) != sizeof (address->peer_address)) { + g_return_val_if_reached (FALSE); + return FALSE; + } memcpy (&address->peer_address, nl_addr_get_binary_addr (nlpeer), sizeof (address->peer_address)); } + + return TRUE; } -static void +static gboolean init_ip6_address (NMPlatformIP6Address *address, struct rtnl_addr *rtnladdr) { struct nl_addr *nladdr = rtnl_addr_get_local (rtnladdr); @@ -895,12 +907,20 @@ init_ip6_address (NMPlatformIP6Address *address, struct rtnl_addr *rtnladdr) address->lifetime = rtnl_addr_get_valid_lifetime (rtnladdr); address->preferred = rtnl_addr_get_preferred_lifetime (rtnladdr); address->flags = rtnl_addr_get_flags (rtnladdr); - g_assert (nl_addr_get_len (nladdr) == sizeof (address->address)); + if (!nladdr || nl_addr_get_len (nladdr) != sizeof (address->address)) { + g_return_val_if_reached (FALSE); + return FALSE; + } memcpy (&address->address, nl_addr_get_binary_addr (nladdr), sizeof (address->address)); if (nlpeer) { - g_assert (nl_addr_get_len (nlpeer) == sizeof (address->peer_address)); + if (nl_addr_get_len (nlpeer) != sizeof (address->peer_address)) { + g_return_val_if_reached (FALSE); + return FALSE; + } memcpy (&address->peer_address, nl_addr_get_binary_addr (nlpeer), sizeof (address->peer_address)); } + + return TRUE; } static gboolean @@ -923,11 +943,17 @@ init_ip4_route (NMPlatformIP4Route *route, struct rtnl_route *rtnlroute) route->plen = nl_addr_get_prefixlen (dst); /* Workaround on previous workaround for libnl default route prefixlen bug. */ if (nl_addr_get_len (dst)) { - g_assert (nl_addr_get_len (dst) == sizeof (route->network)); + if (nl_addr_get_len (dst) != sizeof (route->network)) { + g_return_val_if_reached (FALSE); + return FALSE; + } memcpy (&route->network, nl_addr_get_binary_addr (dst), sizeof (route->network)); } if (gw) { - g_assert (nl_addr_get_len (gw) == sizeof (route->network)); + if (nl_addr_get_len (gw) != sizeof (route->network)) { + g_return_val_if_reached (FALSE); + return FALSE; + } memcpy (&route->gateway, nl_addr_get_binary_addr (gw), sizeof (route->gateway)); } route->metric = rtnl_route_get_priority (rtnlroute); @@ -956,11 +982,17 @@ init_ip6_route (NMPlatformIP6Route *route, struct rtnl_route *rtnlroute) route->plen = nl_addr_get_prefixlen (dst); /* Workaround on previous workaround for libnl default route prefixlen bug. */ if (nl_addr_get_len (dst)) { - g_assert (nl_addr_get_len (dst) == sizeof (route->network)); + if (nl_addr_get_len (dst) != sizeof (route->network)) { + g_return_val_if_reached (FALSE); + return FALSE; + } memcpy (&route->network, nl_addr_get_binary_addr (dst), sizeof (route->network)); } if (gw) { - g_assert (nl_addr_get_len (gw) == sizeof (route->network)); + if (nl_addr_get_len (gw) != sizeof (route->network)) { + g_return_val_if_reached (FALSE); + return FALSE; + } memcpy (&route->gateway, nl_addr_get_binary_addr (gw), sizeof (route->gateway)); } route->metric = rtnl_route_get_priority (rtnlroute); @@ -969,6 +1001,92 @@ init_ip6_route (NMPlatformIP6Route *route, struct rtnl_route *rtnlroute) return TRUE; } +static char to_string_buffer[255]; + +#define SET_AND_RETURN_STRING_BUFFER(...) \ + G_STMT_START { \ + g_snprintf (to_string_buffer, sizeof (to_string_buffer), ## __VA_ARGS__); \ + g_return_val_if_reached (to_string_buffer); \ + return to_string_buffer; \ + } G_STMT_END + +static const char * +to_string_link (NMPlatform *platform, struct rtnl_link *obj) +{ + NMPlatformLink pl_obj; + + if (init_link (platform, &pl_obj, obj)) + return nm_platform_link_to_string (&pl_obj); + SET_AND_RETURN_STRING_BUFFER ("(invalid link %p)", obj); +} + +static const char * +to_string_ip4_address (struct rtnl_addr *obj) +{ + NMPlatformIP4Address pl_obj; + + if (init_ip4_address (&pl_obj, obj)) + return nm_platform_ip4_address_to_string (&pl_obj); + SET_AND_RETURN_STRING_BUFFER ("(invalid ip4 address %p)", obj); +} + +static const char * +to_string_ip6_address (struct rtnl_addr *obj) +{ + NMPlatformIP6Address pl_obj; + + if (init_ip6_address (&pl_obj, obj)) + return nm_platform_ip6_address_to_string (&pl_obj); + SET_AND_RETURN_STRING_BUFFER ("(invalid ip6 address %p)", obj); +} + +static const char * +to_string_ip4_route (struct rtnl_route *obj) +{ + NMPlatformIP4Route pl_obj; + + if (init_ip4_route (&pl_obj, obj)) + return nm_platform_ip4_route_to_string (&pl_obj); + SET_AND_RETURN_STRING_BUFFER ("(invalid ip4 route %p)", obj); +} + +static const char * +to_string_ip6_route (struct rtnl_route *obj) +{ + NMPlatformIP6Route pl_obj; + + if (init_ip6_route (&pl_obj, obj)) + return nm_platform_ip6_route_to_string (&pl_obj); + SET_AND_RETURN_STRING_BUFFER ("(invalid ip6 route %p)", obj); +} + +static const char * +to_string_object_with_type (NMPlatform *platform, struct nl_object *obj, ObjectType type) +{ + switch (type) { + case LINK: + return to_string_link (platform, (struct rtnl_link *) obj); + case IP4_ADDRESS: + return to_string_ip4_address ((struct rtnl_addr *) obj); + case IP6_ADDRESS: + return to_string_ip6_address ((struct rtnl_addr *) obj); + case IP4_ROUTE: + return to_string_ip4_route ((struct rtnl_route *) obj); + case IP6_ROUTE: + return to_string_ip6_route ((struct rtnl_route *) obj); + default: + SET_AND_RETURN_STRING_BUFFER ("(unknown netlink object %p)", obj); + } +} + +static const char * +to_string_object (NMPlatform *platform, struct nl_object *obj) +{ + return to_string_object_with_type (platform, obj, object_type_from_nl_object (obj)); +} + +#undef SET_AND_RETURN_STRING_BUFFER + /******************************************************************/ /* Object and cache manipulation */ @@ -1059,7 +1177,8 @@ announce_object (NMPlatform *platform, const struct nl_object *object, ObjectSta NMPlatformLink device; struct rtnl_link *rtnl_link = (struct rtnl_link *) object; - init_link (platform, &device, rtnl_link); + if (!init_link (platform, &device, rtnl_link)) + return; /* Skip hardware devices not yet discovered by udev. They will be * announced by udev_device_added(). This doesn't apply to removed @@ -1103,7 +1222,8 @@ announce_object (NMPlatform *platform, const struct nl_object *object, ObjectSta { NMPlatformIP4Address address; - init_ip4_address (&address, (struct rtnl_addr *) object); + if (!init_ip4_address (&address, (struct rtnl_addr *) object)) + return; /* Address deletion is sometimes accompanied by route deletion. We need to * check all routes belonging to the same interface. @@ -1123,7 +1243,8 @@ announce_object (NMPlatform *platform, const struct nl_object *object, ObjectSta { NMPlatformIP6Address address; - init_ip6_address (&address, (struct rtnl_addr *) object); + if (!init_ip6_address (&address, (struct rtnl_addr *) object)) + return; g_signal_emit_by_name (platform, sig, address.ifindex, &address, reason); } return; @@ -1236,7 +1357,7 @@ add_object (NMPlatform *platform, struct nl_object *obj) case -NLE_EXIST: break; default: - error ("Netlink error: %s", nl_geterror (nle)); + error ("Netlink error adding %s: %s", to_string_object (platform, object), nl_geterror (nle)); nl_object_dump (object, &dp); return FALSE; } @@ -1292,7 +1413,7 @@ delete_object (NMPlatform *platform, struct nl_object *obj) } /* fall-through to error, because we only expect this for addresses. */ default: - error ("Netlink error: %s", nl_geterror (nle)); + error ("Netlink error deleting %s: %s", to_string_object (platform, obj), nl_geterror (nle)); return FALSE; } @@ -1608,8 +1729,8 @@ link_get_all (NMPlatform *platform) struct rtnl_link *rtnl_link = (struct rtnl_link *) object; if (link_is_announceable (platform, rtnl_link)) { - init_link (platform, &device, rtnl_link); - g_array_append_val (links, device); + if (init_link (platform, &device, rtnl_link)) + g_array_append_val (links, device); } } @@ -1654,6 +1775,9 @@ link_add (NMPlatform *platform, const char *name, NMLinkType type) r = system ("modprobe bonding max_bonds=0"); } + debug ("link: add link '%s' of type '%s' (%d)", + name, type_to_string (type), (int) type); + return add_object (platform, build_rtnl_link (0, name, type)); } @@ -1704,11 +1828,11 @@ link_change (NMPlatform *platform, int ifindex, struct rtnl_link *change) case -NLE_EXIST: break; case -NLE_OBJ_NOTFOUND: - error ("Firmware not found; Netlink error: %s)", nl_geterror (nle)); + error ("Firmware not found for changing link %s; Netlink error: %s)", to_string_link (platform, change), nl_geterror (nle)); platform->error = NM_PLATFORM_ERROR_NO_FIRMWARE; return FALSE; default: - error ("Netlink error: %s", nl_geterror (nle)); + error ("Netlink error changing link %s: %s", to_string_link (platform, change), nl_geterror (nle)); return FALSE; } @@ -1818,6 +1942,13 @@ link_change_flags (NMPlatform *platform, int ifindex, unsigned int flags, gboole else rtnl_link_unset_flags (change, flags); + if (nm_logging_enabled (LOGL_DEBUG, LOGD_PLATFORM)) { + char buf[512]; + + rtnl_link_flags2str (flags, buf, sizeof (buf)); + debug ("link: change %d: flags %s '%s' (%d)", ifindex, value ? "set" : "unset", buf, flags); + } + return link_change (platform, ifindex, change); } @@ -1961,6 +2092,13 @@ link_set_address (NMPlatform *platform, int ifindex, gconstpointer address, size rtnl_link_set_addr (change, nladdr); + if (nm_logging_enabled (LOGL_DEBUG, LOGD_PLATFORM)) { + char *mac = nm_utils_hwaddr_ntoa_len (address, length); + + debug ("link: change %d: address %s (%lu bytes)", ifindex, mac, (unsigned long) length); + g_free (mac); + } + return link_change (platform, ifindex, change); } @@ -1986,6 +2124,8 @@ link_set_mtu (NMPlatform *platform, int ifindex, guint32 mtu) g_return_val_if_fail (change != NULL, FALSE); rtnl_link_set_mtu (change, mtu); + debug ("link: change %d: mtu %lu", ifindex, (unsigned long)mtu); + return link_change (platform, ifindex, change); } @@ -2033,6 +2173,9 @@ vlan_add (NMPlatform *platform, const char *name, int parent, int vlan_id, guint rtnl_link_vlan_set_id (rtnllink, vlan_id); rtnl_link_vlan_set_flags (rtnllink, kernel_flags); + debug ("link: add vlan '%s', parent %d, vlan id %d, flags %X (native: %X)", + name, parent, vlan_id, (unsigned int) vlan_flags, kernel_flags); + return add_object (platform, object); } @@ -2062,6 +2205,8 @@ vlan_set_ingress_map (NMPlatform *platform, int ifindex, int from, int to) return FALSE; rtnl_link_vlan_set_ingress_map (change, from, to); + debug ("link: change %d: vlan ingress map %d -> %d", ifindex, from, to); + return link_change (platform, ifindex, change); } @@ -2074,6 +2219,8 @@ vlan_set_egress_map (NMPlatform *platform, int ifindex, int from, int to) return FALSE; rtnl_link_vlan_set_egress_map (change, from, to); + debug ("link: change %d: vlan egress map %d -> %d", ifindex, from, to); + return link_change (platform, ifindex, change); } @@ -2086,6 +2233,8 @@ link_enslave (NMPlatform *platform, int master, int slave) rtnl_link_set_master (change, master); + debug ("link: change %d: enslave to master %d", slave, master); + return link_change (platform, slave, change); } @@ -2570,9 +2719,10 @@ ip4_address_get_all (NMPlatform *platform, int ifindex) for (object = nl_cache_get_first (priv->address_cache); object; object = nl_cache_get_next (object)) { if (nl_object_is_marked (object)) { - init_ip4_address (&address, (struct rtnl_addr *) object); - address.source = NM_PLATFORM_SOURCE_KERNEL; - g_array_append_val (addresses, address); + if (init_ip4_address (&address, (struct rtnl_addr *) object)) { + address.source = NM_PLATFORM_SOURCE_KERNEL; + g_array_append_val (addresses, address); + } nl_object_unmark (object); } } @@ -2594,9 +2744,10 @@ ip6_address_get_all (NMPlatform *platform, int ifindex) for (object = nl_cache_get_first (priv->address_cache); object; object = nl_cache_get_next (object)) { if (nl_object_is_marked (object)) { - init_ip6_address (&address, (struct rtnl_addr *) object); - address.source = NM_PLATFORM_SOURCE_KERNEL; - g_array_append_val (addresses, address); + if (init_ip6_address (&address, (struct rtnl_addr *) object)) { + address.source = NM_PLATFORM_SOURCE_KERNEL; + g_array_append_val (addresses, address); + } nl_object_unmark (object); } } |