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core: allow matching IPv6 'link-local' method to 'ignore' (rh #1073824)

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When an existing connection profile has IPv6 method 'ignore', NM doesn't simply
care about IPv6. Thus we should allow matching such a profile to devices with
just a link-local address.

The example can be a simple configuration like this:
/etc/sysconfig/network-scripts/ifcfg-ens3:
DEVICE="ens3"
ONBOOT=yes
NETBOOT=yes
UUID="aa17d688-a38d-481d-888d-6d69cca781b8"
BOOTPROTO=dhcp
HWADDR="52:54:00:32:77:59"
TYPE=Ethernet
NAME="ens3"

https://bugzilla.redhat.com/show_bug.cgi?id=1073824
This commit is contained in:
Jiří Klimeš
2014-03-07 10:33:12 +01:00
parent 066ce42ce1
commit 4112bda940
2 changed files with 69 additions and 0 deletions
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34
src/NetworkManagerUtils.c
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@@ -685,6 +685,37 @@ check_ip6_method_link_local_auto (NMConnection *orig,
return FALSE;
}
static gboolean
check_ip6_method_link_local_ignore (NMConnection *orig,
NMConnection *candidate,
GHashTable *settings)
{
GHashTable *props;
const char *orig_ip6_method, *candidate_ip6_method;
props = g_hash_table_lookup (settings, NM_SETTING_IP6_CONFIG_SETTING_NAME);
if ( !props
|| (g_hash_table_size (props) != 1)
|| !g_hash_table_lookup (props, NM_SETTING_IP6_CONFIG_METHOD)) {
/* We only handle ipv6 'method' here */
return FALSE;
}
/* If the original connection method is 'link-local' and the candidate method
* is 'ignore' we can take the connection, because NM didn't simply take care
* of IPv6.
*/
orig_ip6_method = nm_utils_get_ip_config_method (orig, NM_TYPE_SETTING_IP6_CONFIG);
candidate_ip6_method = nm_utils_get_ip_config_method (candidate, NM_TYPE_SETTING_IP6_CONFIG);
if ( strcmp (orig_ip6_method, NM_SETTING_IP6_CONFIG_METHOD_LINK_LOCAL) == 0
&& strcmp (candidate_ip6_method, NM_SETTING_IP6_CONFIG_METHOD_IGNORE) == 0) {
return TRUE;
}
return FALSE;
}
static gboolean
check_ip4_method_disabled_auto (NMConnection *orig,
NMConnection *candidate,
@@ -733,6 +764,9 @@ check_possible_match (NMConnection *orig,
if (check_ip6_method_link_local_auto (orig, candidate, settings))
return candidate;
if (check_ip6_method_link_local_ignore (orig, candidate, settings))
return candidate;
if (check_ip4_method_disabled_auto (orig, candidate, settings, device_has_carrier))
return candidate;