fdo-mirrors/NetworkManager
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/NetworkManager/NetworkManager.git synced 2026-02-14 07:30:31 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

core: grab s390 subchannels when available

Browse source
This commit is contained in:
Dan Williams 2010-06-25 19:49:39 -07:00
parent 66319f616c
commit 3f089fe41d
1 changed files with 110 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

110
src/nm-device-ethernet.c
View file

@ -34,6 +34,9 @@
#include <linux/if.h>
#include <errno.h>
#define G_UDEV_API_IS_SUBJECT_TO_CHANGE
#include <gudev/gudev.h>
#include <netlink/route/addr.h>
#include "nm-glib-compat.h"
@ -116,6 +119,11 @@ typedef struct {
Supplicant supplicant;
guint supplicant_timeout_id;
/* s390 */
char * subchan1;
char * subchan2;
char * subchan3;
/* PPPoE */
NMPPPManager *ppp_manager;
NMIP4Config *pending_ip4_config;
@ -290,6 +298,101 @@ carrier_off (NMNetlinkMonitor *monitor,
}
}
static void
_update_s390_subchannels (NMDeviceEthernet *self)
{
NMDeviceEthernetPrivate *priv = NM_DEVICE_ETHERNET_GET_PRIVATE (self);
const char *iface;
GUdevClient *client;
GUdevDevice *dev;
GUdevDevice *parent;
const char *parent_path, *item, *driver;
const char *subsystems[] = { "net", NULL };
GDir *dir;
GError *error = NULL;
iface = nm_device_get_iface (NM_DEVICE (self));
client = g_udev_client_new (subsystems);
if (!client) {
nm_log_warn (LOGD_DEVICE | LOGD_HW, "(%s): failed to initialize GUdev client", iface);
return;
}
dev = g_udev_client_query_by_subsystem_and_name (client, "net", iface);
if (!dev) {
nm_log_warn (LOGD_DEVICE | LOGD_HW, "(%s): failed to find device with udev", iface);
goto out;
}
/* Try for the "ccwgroup" parent */
parent = g_udev_device_get_parent_with_subsystem (dev, "ccwgroup", NULL);
if (!parent) {
/* FIXME: whatever 'lcs' devices' subsystem is here... */
if (!parent) {
/* Not an s390 device */
goto out;
}
}
parent_path = g_udev_device_get_sysfs_path (parent);
dir = g_dir_open (parent_path, 0, &error);
if (!dir) {
nm_log_warn (LOGD_DEVICE | LOGD_HW, "(%s): failed to open directory '%s': %s",
iface, parent_path,
error && error->message ? error->message : "(unknown)");
g_clear_error (&error);
goto out;
}
/* FIXME: we probably care about ordering here to ensure that we map
* cdev0 -> subchan1, cdev1 -> subchan2, etc.
*/
while ((item = g_dir_read_name (dir))) {
char buf[50];
char *cdev_path;
if (strncmp (item, "cdev", 4))
continue; /* Not a subchannel link */
cdev_path = g_strdup_printf ("%s/%s", parent_path, item);
memset (buf, 0, sizeof (buf));
errno = 0;
if (readlink (cdev_path, &buf[0], sizeof (buf) - 1) >= 0) {
if (!priv->subchan1)
priv->subchan1 = g_path_get_basename (buf);
else if (!priv->subchan2)
priv->subchan2 = g_path_get_basename (buf);
else if (!priv->subchan3)
priv->subchan3 = g_path_get_basename (buf);
} else {
nm_log_warn (LOGD_DEVICE | LOGD_HW,
"(%s): failed to read cdev link '%s': %s",
iface, cdev_path, errno);
}
g_free (cdev_path);
};
driver = nm_device_get_driver (NM_DEVICE (self));
nm_log_info (LOGD_DEVICE | LOGD_HW,
"(%s): found s390 '%s' subchannels [%s, %s, %s]",
iface,
driver ? driver : "(unknown driver)",
priv->subchan1 ? priv->subchan1 : "(none)",
priv->subchan2 ? priv->subchan2 : "(none)",
priv->subchan3 ? priv->subchan3 : "(none)");
g_dir_close (dir);
out:
if (parent)
g_object_unref (parent);
if (dev)
g_object_unref (dev);
g_object_unref (client);
}
static GObject*
constructor (GType type,
guint n_construct_params,
@ -313,6 +416,9 @@ constructor (GType type,
nm_device_get_iface (NM_DEVICE (self)),
nm_device_get_ifindex (NM_DEVICE (self)));
/* s390 stuff */
_update_s390_subchannels (NM_DEVICE_ETHERNET (self));
caps = nm_device_get_capabilities (self);
if (caps & NM_DEVICE_CAP_CARRIER_DETECT) {
GError *error = NULL;
@ -1759,6 +1865,10 @@ dispose (GObject *object)
priv->monitor = NULL;
}
g_free (priv->subchan1);
g_free (priv->subchan2);
g_free (priv->subchan3);
G_OBJECT_CLASS (nm_device_ethernet_parent_class)->dispose (object);
}