networkd: link - add explicit unmanaged state

[elogind.git] / src / network / networkd-link.c

diff --git a/src/network/networkd-link.c b/src/network/networkd-link.c
index d24168227c3cbbe77ced73b1cc7ec5ec774527f9..392665a4d16d32923cb709563d8a6cb1d0df305b 100644 (file)
--- a/src/network/networkd-link.c
+++ b/src/network/networkd-link.c
@@ -141,6 +141,16 @@ static int link_enter_configured(Link *link) {
         return 0;
 }
 
+static void link_enter_unmanaged(Link *link) {
+        assert(link);
+
+        log_info_link(link, "unmanaged");
+
+        link->state = LINK_STATE_UNMANAGED;
+
+        link_save(link);
+}
+
 static void link_enter_failed(Link *link) {
         assert(link);
 
@@ -1059,7 +1069,9 @@ static int link_update_flags(Link *link, unsigned flags) {
 
         flags_added = (link->flags ^ flags) & flags;
         flags_removed = (link->flags ^ flags) & link->flags;
-        generic_flags = ~(IFF_UP | IFF_LOWER_UP | IFF_DORMANT);
+        generic_flags = ~(IFF_UP | IFF_LOWER_UP | IFF_DORMANT | IFF_DEBUG |
+                          IFF_MULTICAST | IFF_BROADCAST | IFF_PROMISC |
+                          IFF_NOARP | IFF_MASTER | IFF_SLAVE);
 
         /* consider link to have carrier when LOWER_UP and !DORMANT
 
@@ -1096,6 +1108,41 @@ static int link_update_flags(Link *link, unsigned flags) {
         else if (flags_removed & IFF_DORMANT)
                 log_debug_link(link, "link is not dormant");
 
+        if (flags_added & IFF_DEBUG)
+                log_debug_link(link, "debugging enabled in the kernel");
+        else if (flags_removed & IFF_DEBUG)
+                log_debug_link(link, "debugging disabled in the kernel");
+
+        if (flags_added & IFF_MULTICAST)
+                log_debug_link(link, "multicast enabled");
+        else if (flags_removed & IFF_MULTICAST)
+                log_debug_link(link, "multicast disabled");
+
+        if (flags_added & IFF_BROADCAST)
+                log_debug_link(link, "broadcast enabled");
+        else if (flags_removed & IFF_BROADCAST)
+                log_debug_link(link, "broadcast disabled");
+
+        if (flags_added & IFF_PROMISC)
+                log_debug_link(link, "promiscuous mode enabled");
+        else if (flags_removed & IFF_PROMISC)
+                log_debug_link(link, "promiscuous mode disabled");
+
+        if (flags_added & IFF_NOARP)
+                log_debug_link(link, "ARP protocol disabled");
+        else if (flags_removed & IFF_NOARP)
+                log_debug_link(link, "ARP protocol enabled");
+
+        if (flags_added & IFF_MASTER)
+                log_debug_link(link, "link is master");
+        else if (flags_removed & IFF_MASTER)
+                log_debug_link(link, "link is no longer master");
+
+        if (flags_added & IFF_SLAVE)
+                log_debug_link(link, "link is slave");
+        else if (flags_removed & IFF_SLAVE)
+                log_debug_link(link, "link is no longer slave");
+
         /* link flags are currently at most 18 bits, let's default to printing 20 */
         if (flags_added & generic_flags)
                 log_debug_link(link, "unknown link flags gained: %#.5x (ignoring)",
@@ -1372,6 +1419,10 @@ static int link_configure(Link *link) {
                 if (r < 0)
                         return r;
 
+                r = sd_ipv4ll_set_mac(link->ipv4ll, &link->mac);
+                if (r < 0)
+                        return r;
+
                 r = sd_ipv4ll_set_index(link->ipv4ll, link->ifindex);
                 if (r < 0)
                         return r;
@@ -1390,6 +1441,10 @@ static int link_configure(Link *link) {
                 if (r < 0)
                         return r;
 
+                r = sd_dhcp_client_set_mac(link->dhcp_client, &link->mac);
+                if (r < 0)
+                        return r;
+
                 r = sd_dhcp_client_set_index(link->dhcp_client, link->ifindex);
                 if (r < 0)
                         return r;
@@ -1426,8 +1481,11 @@ int link_initialized(Link *link, struct udev_device *device) {
         log_debug_link(link, "link initialized");
 
         r = network_get(link->manager, device, link->ifname, &link->mac, &network);
-        if (r < 0)
-                return r == -ENOENT ? 0 : r;
+        if (r == -ENOENT) {
+                link_enter_unmanaged(link);
+                return 0;
+        } else if (r < 0)
+                return r;
 
         r = network_apply(link->manager, network, link);
         if (r < 0)
@@ -1496,7 +1554,7 @@ int link_update(Link *link, sd_rtnl_message *m) {
         assert(link->ifname);
         assert(m);
 
-        if (link->state == LINK_STATE_FAILED)
+        if (link->state == LINK_STATE_FAILED || link->state == LINK_STATE_UNMANAGED)
                 return 0;
 
         r = sd_rtnl_message_read_string(m, IFLA_IFNAME, &ifname);
@@ -1622,6 +1680,7 @@ static const char* const link_state_table[_LINK_STATE_MAX] = {
         [LINK_STATE_SETTING_ADDRESSES] = "configuring",
         [LINK_STATE_SETTING_ROUTES] = "configuring",
         [LINK_STATE_CONFIGURED] = "configured",
+        [LINK_STATE_UNMANAGED] = "unmanaged",
         [LINK_STATE_FAILED] = "failed",
 };