#include <linux/if.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
+#include <i18n/i18n.h>
#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 <pb-config/pb-config.h>
#include <process/process.h>
#include <system/system.h>
-#include "file.h"
#include "network.h"
#include "sysinfo.h"
+#include "platform.h"
#include "device-handler.h"
+#include "paths.h"
#define HWADDR_SIZE 6
#define PIDFILE_BASE (LOCAL_STATE_DIR "/petitboot/")
struct list_item list;
struct process *udhcpc_process;
+ struct process *udhcpc6_process;
struct discover_device *dev;
+ bool ready;
};
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)
{
return NULL;
}
+static struct interface *find_interface_by_name(struct network *network,
+ const char *name)
+{
+ struct interface *interface;
+
+ list_for_each_entry(&network->interfaces, interface, list)
+ if (!strcmp(interface->name, name))
+ return interface;
+
+ 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)
+{
+ 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;
return 0;
}
-static void add_interface(struct network *network,
+static void create_interface_dev(struct network *network,
struct interface *interface)
{
- list_add(&network->interfaces, &interface->list);
- interface->dev = discover_device_create(network->handler,
- interface->name);
+ char *uuid = mac_bytes_to_string(interface, interface->hwaddr,
+ sizeof(interface->hwaddr));
+
+ interface->dev = discover_device_create(network->handler, uuid,
+ interface->name);
interface->dev->device->type = DEVICE_TYPE_NETWORK;
device_handler_add_device(network->handler, interface->dev);
+ talloc_free(uuid);
}
static void remove_interface(struct network *network,
struct interface *interface)
{
- device_handler_remove(network->handler, interface->dev);
+ if (interface->dev)
+ device_handler_remove(network->handler, interface->dev);
list_remove(&interface->list);
talloc_free(interface);
}
+void network_register_device(struct network *network,
+ struct discover_device *dev)
+{
+ struct interface *iface;
+
+ if (dev->uuid)
+ iface = find_interface_by_uuid(network, dev->uuid);
+ else
+ iface = find_interface_by_name(network, dev->label);
+ if (!iface)
+ return;
+
+ iface->dev = dev;
+ dev->uuid = mac_bytes_to_string(iface->dev, iface->hwaddr,
+ sizeof(iface->hwaddr));
+}
+
+void network_unregister_device(struct network *network,
+ struct discover_device *dev)
+{
+ struct interface *iface;
+
+ iface = find_interface_by_uuid(network, dev->uuid);
+ if (!iface)
+ return;
+
+ iface->dev = NULL;
+}
+
static int interface_change(struct interface *interface, bool up)
{
const char *statestr = up ? "up" : "down";
process_stop_async(interface->udhcpc_process);
process_release(interface->udhcpc_process);
}
+ if (!up && interface->udhcpc6_process) {
+ /* we don't care about the callback from here */
+ interface->udhcpc6_process->exit_cb = NULL;
+ interface->udhcpc6_process->data = NULL;
+ process_stop_async(interface->udhcpc6_process);
+ process_release(interface->udhcpc6_process);
+ }
+
+ if (!up) {
+ rc = process_run_simple(interface, pb_system_apps.ip,
+ "address", "flush", "dev", interface->name,
+ NULL);
+ if (rc)
+ pb_log("failed to flush addresses from interface %s\n",
+ interface->name);
+ }
rc = process_run_simple(interface, pb_system_apps.ip,
"link", "set", interface->name, statestr, NULL);
static void udhcpc_process_exit(struct process *process)
{
struct interface *interface = process->data;
- pb_debug("udhcp client [pid %d] for interface %s exited, rc %d\n",
- process->pid, interface->name, process->exit_status);
- interface->udhcpc_process = NULL;
+
+ if (process == interface->udhcpc_process) {
+ pb_debug("udhcpc client [pid %d] for interface %s exited, rc %d\n",
+ process->pid, interface->name, process->exit_status);
+ interface->udhcpc_process = NULL;
+ } else {
+ pb_debug("udhcpc6 client [pid %d] for interface %s exited, rc %d\n",
+ process->pid, interface->name, process->exit_status);
+ interface->udhcpc6_process = NULL;
+ }
+
process_release(process);
}
-static void configure_interface_dhcp(struct interface *interface)
+static void configure_interface_dhcp(struct network *network,
+ struct interface *interface)
{
- struct process *process;
- char pidfile[256];
+ const struct platform *platform;
+ char pidfile[256], idv4[10], idv6[10];
+ struct process *p_v4, *p_v6;
int rc;
- const char *argv[] = {
+ const char *argv_ipv4[] = {
pb_system_apps.udhcpc,
"-R",
- "-n",
+ "-f",
+ "-O", "pxeconffile",
+ "-O", "pxepathprefix",
+ "-O", "reboottime",
"-p", pidfile,
"-i", interface->name,
+ "-x", idv4, /* [11,12] - dhcp client identifier */
NULL,
};
+
+ const char *argv_ipv6[] = {
+ pb_system_apps.udhcpc6,
+ "-R",
+ "-f",
+ "-O", "bootfile_url",
+ "-O", "bootfile_param",
+ "-O", "pxeconffile",
+ "-O", "pxepathprefix",
+ "-p", pidfile,
+ "-i", interface->name,
+ "-x", idv6, /* [15,16] - dhcp client identifier */
+ 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);
- process = process_create(interface);
+ platform = platform_get();
+ if (platform && platform->dhcp_arch_id != 0xffff) {
+ snprintf(idv6, sizeof(idv6), "0x3d:%04x",
+ platform->dhcp_arch_id);
+ snprintf(idv4, sizeof(idv4), "0x5d:%04x",
+ platform->dhcp_arch_id);
+ } else {
+ argv_ipv4[11] = argv_ipv6[15] = NULL;
+ }
- process->path = pb_system_apps.udhcpc;
- process->argv = argv;
- process->exit_cb = udhcpc_process_exit;
- process->data = interface;
+ p_v4 = process_create(interface);
+ p_v4->path = pb_system_apps.udhcpc;
+ p_v4->argv = argv_ipv4;
+ p_v4->exit_cb = udhcpc_process_exit;
+ p_v4->data = interface;
- rc = process_run_async(process);
+ pb_log("Running DHCPv4 client\n");
+ rc = process_run_async(p_v4);
+ if (rc)
+ process_release(p_v4);
+ else
+ interface->udhcpc_process = p_v4;
+ pb_log("Running DHCPv6 client\n");
+ p_v6 = process_create(interface);
+ p_v6->path = pb_system_apps.udhcpc6;
+ p_v6->argv = argv_ipv6;
+ p_v6->exit_cb = udhcpc_process_exit;
+ p_v6->data = interface;
+
+ rc = process_run_async(p_v6);
if (rc)
- process_release(process);
+ process_release(p_v6);
else
- interface->udhcpc_process = process;
+ interface->udhcpc6_process = p_v6;
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;
+ 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);
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)
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);
+ device_handler_start_requery_timeout(network->handler,
+ interface->dev, -1);
+ }
+
return;
}
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 */
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(interface, config);
+ configure_interface_static(network, interface, config);
+ /* Nothing left to do for static interfaces */
+ pending_network_jobs_start();
+ }
+
+ interface->state = IFSTATE_CONFIGURED;
+}
+
+void network_requery_device(struct network *network,
+ struct discover_device *dev)
+{
+ const struct interface_config *config;
+ struct interface *interface;
+
+ interface = find_interface_by_uuid(network, dev->uuid);
+ if (!interface)
+ return;
+
+ if (interface->udhcpc_process) {
+ interface->udhcpc_process->exit_cb = NULL;
+ interface->udhcpc_process->data = NULL;
+ process_stop_async(interface->udhcpc_process);
+ process_release(interface->udhcpc_process);
+ }
+
+ config = find_config_by_hwaddr(interface->hwaddr);
+
+ if (config && config->ignore)
+ return;
+
+ if (!config || config->method == CONFIG_METHOD_DHCP) {
+ /* Restart DHCP. Once we acquire a lease, we'll re-start
+ * the requery timeout (based on any reboottime DHCP option)
+ */
+ configure_interface_dhcp(network, interface);
+
+ } else if (config->method == CONFIG_METHOD_STATIC &&
+ config->static_config.url) {
+ /* Redownload statically-provided URL, and manually restart
+ * requery timeout */
+ 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);
+ device_handler_start_requery_timeout(network->handler,
+ dev, -1);
}
}
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;
uint8_t ifaddr[6];
- char ifname[IFNAMSIZ+1];
+ char ifname[IFNAMSIZ];
int attrlen, type;
case IFLA_IFNAME:
strncpy(ifname, data, IFNAMSIZ);
+ ifname[IFNAMSIZ - 1] = '\0';
have_ifname = true;
break;
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) {
interface->ifindex = info->ifi_index;
interface->state = IFSTATE_NEW;
memcpy(interface->hwaddr, ifaddr, sizeof(interface->hwaddr));
- strncpy(interface->name, ifname, sizeof(interface->name) - 1);
- add_interface(network, interface);
+ strncpy(interface->name, ifname, sizeof(interface->name));
+
+ 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 */
+ if (strncmp(interface->name, ifname, IFNAMSIZ)) {
+ pb_debug("ifname update: %s -> %s\n", interface->name, ifname);
+ strncpy(interface->name, ifname, sizeof(interface->name));
+ 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(
+ sizeof(interface->hwaddr),
+ interface->hwaddr, interface->name,
+ info->ifi_flags & IFF_LOWER_UP);
+
+ if (!interface->dev)
+ create_interface_dev(network, interface);
- /* tell the sysinfo code about this interface */
- if (strcmp(interface->name, "lo"))
- system_info_register_interface(
- sizeof(interface->hwaddr),
- interface->hwaddr, interface->name);
+ if (!interface->ready && strncmp(interface->name, "lo", strlen("lo"))) {
+ pb_log("%s not marked ready yet\n", interface->name);
+ return 0;
}
configure_interface(network, interface,
return 0;
}
+void network_mark_interface_ready(struct device_handler *handler,
+ int ifindex, const char *ifname, uint8_t *mac, int hwsize)
+{
+ struct network *network = device_handler_get_network(handler);
+ struct interface *interface, *tmp = NULL;
+ char *macstr;
+
+ if (!network) {
+ pb_log("Network not ready - can not mark interface ready\n");
+ return;
+ }
+
+ if (hwsize != HWADDR_SIZE)
+ return;
+
+ if (strncmp(ifname, "lo", strlen("lo")) == 0)
+ return;
+
+ interface = find_interface_by_ifindex(network, ifindex);
+ if (!interface) {
+ pb_debug("Creating ready interface %d - %s\n",
+ ifindex, ifname);
+ interface = talloc_zero(network, struct interface);
+ interface->ifindex = ifindex;
+ interface->state = IFSTATE_NEW;
+ memcpy(interface->hwaddr, mac, HWADDR_SIZE);
+ strncpy(interface->name, ifname, sizeof(interface->name) - 1);
+
+ 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;
+ }
+
+ list_add(&network->interfaces, &interface->list);
+ create_interface_dev(network, interface);
+ }
+
+ if (interface->ready) {
+ pb_log("%s already ready\n", interface->name);
+ return;
+ }
+
+ if (strncmp(interface->name, ifname, strlen(ifname)) != 0) {
+ pb_debug("ifname update from udev: %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);
+ }
+
+ if (memcmp(interface->hwaddr, mac, HWADDR_SIZE) != 0) {
+ macstr = mac_bytes_to_string(interface, mac, hwsize);
+ pb_log("Warning - new MAC for interface %d does not match: %s\n",
+ ifindex, macstr);
+ talloc_free(macstr);
+ }
+
+ pb_log("Interface %s ready\n", ifname);
+ interface->ready = true;
+ configure_interface(network, interface, false, false);
+}
+
static int network_netlink_process(void *arg)
{
struct network *network = arg;
buf = talloc_realloc(network, buf, char, len + dns_conf_len + 1);
memcpy(buf + len, dns_conf, dns_conf_len);
len += dns_conf_len;
- buf[len - 1] = '\0';
+ buf[len] = '\0';
modified = true;
talloc_free(dns_conf);
network = talloc(handler, struct network);
list_init(&network->interfaces);
network->handler = handler;
- network->manual_config = false;
network->dry_run = dry_run;
+ network->manual_config = config_get()->network.n_interfaces != 0;
network_init_dns(network);
return NULL;
}
-
int network_shutdown(struct network *network)
{
struct interface *interface;
if (network->waiter)
waiter_remove(network->waiter);
- list_for_each_entry(&network->interfaces, interface, list)
+ list_for_each_entry(&network->interfaces, interface, list) {
+ if (interface->state == IFSTATE_IGNORED)
+ continue;
+ if (!strcmp(interface->name, "lo"))
+ continue;
interface_down(interface);
+ }
close(network->netlink_sd);
talloc_free(network);
projects / petitboot / blobdiff