discover/network: Ignore tun devices

[petitboot] / discover / network.c

diff --git a/discover/network.c b/discover/network.c
index c0bd2af01e84a0321be6f511fdfbc64e6046b07f..2de96ec55d1f061fc301dc9b36fe717c8b3c0a5b 100644 (file)
--- a/discover/network.c
+++ b/discover/network.c
@@ -11,13 +11,13 @@
 
 #include <log/log.h>
 #include <list/list.h>
+#include <file/file.h>
 #include <types/types.h>
 #include <talloc/talloc.h>
 #include <waiter/waiter.h>
 #include <process/process.h>
 #include <system/system.h>
 
-#include "file.h"
 #include "network.h"
 #include "sysinfo.h"
 #include "platform.h"
@@ -109,6 +109,19 @@ static struct interface *find_interface_by_name(struct network *network,
        return NULL;
 }
 
+uint8_t *find_mac_by_name(void *ctx, struct network *network,
+               const char *name)
+{
+       struct interface *interface;
+
+       interface = find_interface_by_name(network, name);
+       if (!interface)
+               return NULL;
+
+       return talloc_memdup(ctx, &interface->hwaddr,
+                            sizeof(uint8_t) * HWADDR_SIZE);
+}
+
 static int network_init_netlink(struct network *network)
 {
        struct sockaddr_nl addr;
@@ -323,7 +336,8 @@ static void configure_interface_dhcp(struct interface *interface)
        return;
 }
 
-static void configure_interface_static(struct interface *interface,
+static void configure_interface_static(struct network *network,
+               struct interface *interface,
                const struct interface_config *config)
 {
        int rc;
@@ -357,6 +371,16 @@ static void configure_interface_static(struct interface *interface,
                                interface->name);
        }
 
+       if (config->static_config.url) {
+               pb_log("config URL %s\n", config->static_config.url);
+               device_handler_process_url(network->handler,
+                               config->static_config.url,
+                               mac_bytes_to_string(interface->dev,
+                                               interface->hwaddr,
+                                               sizeof(interface->hwaddr)),
+                               config->static_config.address);
+       }
+
        return;
 }
 
@@ -374,8 +398,11 @@ static void configure_interface(struct network *network,
                        interface->state = IFSTATE_NEW;
                else if (!link)
                        interface->state = IFSTATE_UP_WAITING_LINK;
-               else
+               else {
+                       pb_debug("network: skipping configured interface %s\n",
+                                       interface->name);
                        return;
+               }
        }
 
        /* always up the lookback, no other handling required */
@@ -425,8 +452,10 @@ static void configure_interface(struct network *network,
                configure_interface_dhcp(interface);
 
        } else if (config->method == CONFIG_METHOD_STATIC) {
-               configure_interface_static(interface, config);
+               configure_interface_static(network, interface, config);
        }
+
+       interface->state = IFSTATE_CONFIGURED;
 }
 
 static int network_handle_nlmsg(struct network *network, struct nlmsghdr *nlmsg)
@@ -486,6 +515,9 @@ static int network_handle_nlmsg(struct network *network, struct nlmsghdr *nlmsg)
                return 0;
        }
 
+       /* ignore the default tun device in some environments */
+       if (strncmp(ifname, "tun", strlen("tun")) == 0)
+               return 0;
 
        interface = find_interface_by_ifindex(network, info->ifi_index);
        if (!interface) {
@@ -497,6 +529,15 @@ static int network_handle_nlmsg(struct network *network, struct nlmsghdr *nlmsg)
                add_interface(network, interface);
        }
 
+       /* A repeated RTM_NEWLINK can represent an interface name change */
+       if (strncmp(interface->name, ifname, IFNAMSIZ)) {
+               pb_debug("ifname update: %s -> %s\n", interface->name, ifname);
+               strncpy(interface->name, ifname, sizeof(interface->name) - 1);
+               talloc_free(interface->dev->device->id);
+               interface->dev->device->id =
+                       talloc_strdup(interface->dev->device, ifname);
+       }
+
        /* notify the sysinfo code about changes to this interface */
        if (strcmp(interface->name, "lo"))
                system_info_register_interface(