lib/system: Add vgscan, vgchange utilities
[petitboot] / discover / network.c
index 0161c69d2bedb6c40af1a3b004996d64ce8988c6..5035b7ce0895cfe0f2a3c12992ca0d1d57c06f24 100644 (file)
@@ -8,6 +8,7 @@
 #include <linux/if.h>
 #include <linux/netlink.h>
 #include <linux/rtnetlink.h>
+#include <i18n/i18n.h>
 
 #include <log/log.h>
 #include <list/list.h>
@@ -22,6 +23,7 @@
 #include "sysinfo.h"
 #include "platform.h"
 #include "device-handler.h"
+#include "paths.h"
 
 #define HWADDR_SIZE    6
 #define PIDFILE_BASE   (LOCAL_STATE_DIR "/petitboot/")
@@ -65,6 +67,25 @@ struct network {
        bool                    dry_run;
 };
 
+static char *mac_bytes_to_string(void *ctx, uint8_t *addr, int len)
+{
+       const int l = strlen("xx:");
+       char *buf;
+       int i;
+
+       if (len <= 0)
+               return talloc_strdup(ctx, "");
+
+       buf = talloc_array(ctx, char, (len * l) + 1);
+
+       for (i = 0; i < len; i++)
+               sprintf(buf + (l * i), "%02x:", addr[i]);
+
+       *(buf + (l * len) - 1) = '\0';
+
+       return buf;
+}
+
 static const struct interface_config *find_config_by_hwaddr(
                uint8_t *hwaddr)
 {
@@ -109,6 +130,25 @@ static struct interface *find_interface_by_name(struct network *network,
        return NULL;
 }
 
+static struct interface *find_interface_by_uuid(struct network *network,
+               const char *uuid)
+{
+       struct interface *interface;
+       char *mac;
+
+       list_for_each_entry(&network->interfaces, interface, list) {
+               mac = mac_bytes_to_string(interface, interface->hwaddr,
+                                       sizeof(interface->hwaddr));
+               if (!strcmp(mac, uuid)) {
+                       talloc_free(mac);
+                       return interface;
+               }
+               talloc_free(mac);
+       }
+
+       return NULL;
+}
+
 uint8_t *find_mac_by_name(void *ctx, struct network *network,
                const char *name)
 {
@@ -175,32 +215,12 @@ static int network_send_link_query(struct network *network)
        return 0;
 }
 
-static char *mac_bytes_to_string(void *ctx, uint8_t *addr, int len)
-{
-       const int l = strlen("xx:");
-       char *buf;
-       int i;
-
-       if (len <= 0)
-               return talloc_strdup(ctx, "");
-
-       buf = talloc_array(ctx, char, (len * l) + 1);
-
-       for (i = 0; i < len; i++)
-               sprintf(buf + (l * i), "%02x:", addr[i]);
-
-       *(buf + (l * len) - 1) = '\0';
-
-       return buf;
-}
-
-static void add_interface(struct network *network,
+static void create_interface_dev(struct network *network,
                struct interface *interface)
 {
        char *uuid = mac_bytes_to_string(interface, interface->hwaddr,
                                                sizeof(interface->hwaddr));
 
-       list_add(&network->interfaces, &interface->list);
        interface->dev = discover_device_create(network->handler, uuid,
                                                interface->name);
        interface->dev->device->type = DEVICE_TYPE_NETWORK;
@@ -222,7 +242,10 @@ void network_register_device(struct network *network,
 {
        struct interface *iface;
 
-       iface = find_interface_by_name(network, dev->device->id);
+       if (dev->uuid)
+               iface = find_interface_by_uuid(network, dev->uuid);
+       else
+               iface = find_interface_by_name(network, dev->label);
        if (!iface)
                return;
 
@@ -236,7 +259,7 @@ void network_unregister_device(struct network *network,
 {
        struct interface *iface;
 
-       iface = find_interface_by_name(network, dev->device->id);
+       iface = find_interface_by_uuid(network, dev->uuid);
        if (!iface)
                return;
 
@@ -294,7 +317,8 @@ static void udhcpc_process_exit(struct process *process)
        process_release(process);
 }
 
-static void configure_interface_dhcp(struct interface *interface)
+static void configure_interface_dhcp(struct network *network,
+               struct interface *interface)
 {
        const struct platform *platform;
        char pidfile[256], id[10];
@@ -312,6 +336,9 @@ static void configure_interface_dhcp(struct interface *interface)
                NULL,
        };
 
+       device_handler_status_dev_info(network->handler, interface->dev,
+                       _("Configuring with DHCP"));
+
        snprintf(pidfile, sizeof(pidfile), "%s/udhcpc-%s.pid",
                        PIDFILE_BASE, interface->name);
 
@@ -344,6 +371,10 @@ static void configure_interface_static(struct network *network,
 {
        int rc;
 
+       device_handler_status_dev_info(network->handler, interface->dev,
+                       _("Configuring with static address (ip: %s)"),
+                       config->static_config.address);
+
        rc = process_run_simple(interface, pb_system_apps.ip,
                        "address", "add", config->static_config.address,
                        "dev", interface->name, NULL);
@@ -356,6 +387,10 @@ static void configure_interface_static(struct network *network,
                return;
        }
 
+       system_info_set_interface_address(sizeof(interface->hwaddr),
+                               interface->hwaddr,
+                               config->static_config.address);
+
        /* we need the interface up before we can route through it */
        rc = interface_up(interface);
        if (rc)
@@ -451,10 +486,12 @@ static void configure_interface(struct network *network,
        pb_log("network: configuring interface %s\n", interface->name);
 
        if (!config || config->method == CONFIG_METHOD_DHCP) {
-               configure_interface_dhcp(interface);
+               configure_interface_dhcp(network, interface);
 
        } else if (config->method == CONFIG_METHOD_STATIC) {
                configure_interface_static(network, interface, config);
+               /* Nothing left to do for static interfaces */
+               pending_network_jobs_start();
        }
 
        interface->state = IFSTATE_CONFIGURED;
@@ -463,7 +500,7 @@ static void configure_interface(struct network *network,
 static int network_handle_nlmsg(struct network *network, struct nlmsghdr *nlmsg)
 {
        bool have_ifaddr, have_ifname;
-       struct interface *interface;
+       struct interface *interface, *tmp;
        struct ifinfomsg *info;
        struct rtattr *attr;
        unsigned int mtu;
@@ -528,7 +565,18 @@ static int network_handle_nlmsg(struct network *network, struct nlmsghdr *nlmsg)
                interface->state = IFSTATE_NEW;
                memcpy(interface->hwaddr, ifaddr, sizeof(interface->hwaddr));
                strncpy(interface->name, ifname, sizeof(interface->name) - 1);
-               add_interface(network, interface);
+
+               list_for_each_entry(&network->interfaces, tmp, list)
+                       if (memcmp(interface->hwaddr, tmp->hwaddr,
+                                  sizeof(interface->hwaddr)) == 0) {
+                               pb_log("%s: %s has duplicate MAC address, ignoring\n",
+                                      __func__, interface->name);
+                               talloc_free(interface);
+                               return -1;
+                       }
+
+               list_add(&network->interfaces, &interface->list);
+               create_interface_dev(network, interface);
        }
 
        /* A repeated RTM_NEWLINK can represent an interface name change */
@@ -547,6 +595,9 @@ static int network_handle_nlmsg(struct network *network, struct nlmsghdr *nlmsg)
                                interface->hwaddr, interface->name,
                                info->ifi_flags & IFF_LOWER_UP);
 
+       if (!interface->dev)
+               create_interface_dev(network, interface);
+
        configure_interface(network, interface,
                        info->ifi_flags & IFF_UP,
                        info->ifi_flags & IFF_LOWER_UP);