static void alias_device_cb(struct device_user *dep, enum device_event ev)
{
struct alias_device *alias;
bool new_state = false;
alias = container_of(dep, struct alias_device, dep);
switch (ev) {
case DEV_EVENT_ADD:
new_state = true;
case DEV_EVENT_REMOVE:
device_set_present(&alias->dev, new_state);
break;
case DEV_EVENT_LINK_UP:
new_state = true;
case DEV_EVENT_LINK_DOWN:
device_set_link(&alias->dev, new_state);
break;
case DEV_EVENT_UPDATE_IFINDEX:
device_set_ifindex(&alias->dev, dep->dev->ifindex);
break;
default:
device_broadcast_event(&alias->dev, ev);
break;
}
}
static void alias_set_device(struct alias_device *alias, struct device *dev)
{
if (dev == alias->dep.dev)
return;
device_set_present(&alias->dev, false);
device_remove_user(&alias->new_dep);
if (alias->dev.active) {
if (dev)
device_add_user(&alias->new_dep, dev);
alias->update = true;
return;
}
alias->update = false;
device_remove_user(&alias->dep);
alias->dev.hidden = !dev;
if (dev) {
device_set_ifindex(&alias->dev, dev->ifindex);
strcpy(alias->dev.ifname, dev->ifname);
device_broadcast_event(&alias->dev, DEV_EVENT_UPDATE_IFNAME);
device_add_user(&alias->dep, dev);
} else {
alias->dev.ifname[0] = 0;
device_broadcast_event(&alias->dev, DEV_EVENT_UPDATE_IFNAME);
}
}
static int device_amend(sd_device *device, const char *key, const char *value) {
int r;
assert(device);
assert(key);
assert(value);
if (streq(key, "DEVPATH")) {
char *path;
path = strjoina("/sys", value);
/* the caller must verify or trust this data (e.g., if it comes from the kernel) */
r = device_set_syspath(device, path, false);
if (r < 0)
return log_debug_errno(r, "sd-device: could not set syspath to '%s': %m", path);
} else if (streq(key, "SUBSYSTEM")) {
r = device_set_subsystem(device, value);
if (r < 0)
return log_debug_errno(r, "sd-device: could not set subsystem to '%s': %m", value);
} else if (streq(key, "DEVTYPE")) {
r = device_set_devtype(device, value);
if (r < 0)
return log_debug_errno(r, "sd-device: could not set devtype to '%s': %m", value);
} else if (streq(key, "DEVNAME")) {
r = device_set_devname(device, value);
if (r < 0)
return log_debug_errno(r, "sd-device: could not set devname to '%s': %m", value);
} else if (streq(key, "USEC_INITIALIZED")) {
r = device_set_usec_initialized(device, value);
if (r < 0)
return log_debug_errno(r, "sd-device: could not set usec-initialized to '%s': %m", value);
} else if (streq(key, "DRIVER")) {
r = device_set_driver(device, value);
if (r < 0)
return log_debug_errno(r, "sd-device: could not set driver to '%s': %m", value);
} else if (streq(key, "IFINDEX")) {
r = device_set_ifindex(device, value);
if (r < 0)
return log_debug_errno(r, "sd-device: could not set ifindex to '%s': %m", value);
} else if (streq(key, "DEVMODE")) {
r = device_set_devmode(device, value);
if (r < 0)
return log_debug_errno(r, "sd-device: could not set devmode to '%s': %m", value);
} else if (streq(key, "DEVUID")) {
r = device_set_devuid(device, value);
if (r < 0)
return log_debug_errno(r, "sd-device: could not set devuid to '%s': %m", value);
} else if (streq(key, "DEVGID")) {
r = device_set_devgid(device, value);
if (r < 0)
return log_debug_errno(r, "sd-device: could not set devgid to '%s': %m", value);
} else if (streq(key, "DEVLINKS")) {
const char *word, *state;
size_t l;
FOREACH_WORD(word, l, value, state) {
char devlink[l + 1];
strncpy(devlink, word, l);
devlink[l] = '\0';
r = device_add_devlink(device, devlink);
if (r < 0)
return log_debug_errno(r, "sd-device: could not add devlink '%s': %m", devlink);
}
} else if (streq(key, "TAGS")) {
