int iface_conf_read(struct iface_rec *iface)
{
struct iface_rec *def_iface;
int rc, retry = 0;
def_iface = iface_match_default(iface);
if (def_iface) {
/*
* older tools allowed default to have different
* transport_names so we do not want to overwrite
* it.
*/
if (!strcmp(def_iface->name, DEFAULT_IFACENAME)) {
if (!strlen(iface->name))
strcpy(iface->name, def_iface->name);
if (!strlen(iface->netdev))
strcpy(iface->netdev, def_iface->netdev);
if (!strlen(iface->hwaddress))
strcpy(iface->hwaddress, def_iface->hwaddress);
if (!strlen(iface->transport_name))
strcpy(iface->transport_name,
def_iface->transport_name);
if (!strlen(iface->iname))
strcpy(iface->iname, def_iface->iname);
} else {
iface_init(iface);
iface_copy(iface, def_iface);
}
return 0;
}
retry_read:
rc = idbm_lock();
if (rc)
return rc;
rc = __iface_conf_read(iface);
idbm_unlock();
/*
* cmd was run before running -m iface, so force def bindings
* creation to see if that was the one requested
*/
if (retry < 1 && rc == ISCSI_ERR_IDBM) {
iface_setup_host_bindings();
retry++;
goto retry_read;
}
return rc;
}
static int __iface_get_by_net_binding(void *data, struct iface_rec *iface)
{
struct iface_search *search = data;
if (!strcmp(search->pattern->name, iface->name)) {
iface_copy(search->found, iface);
return 1;
}
if (iface_is_bound_by_hwaddr(search->pattern)) {
if (!strcasecmp(iface->hwaddress,
search->pattern->hwaddress)) {
iface_copy(search->found, iface);
return 1;
} else
return 0;
}
if (iface_is_bound_by_netdev(search->pattern)) {
if (!strcmp(iface->netdev, search->pattern->netdev)) {
iface_copy(search->found, iface);
return 1;
} else
return 0;
}
/*
if (iface_is_bound_by_ipaddr(search->pattern)) {
if (!strcmp(iface->ipaddress, search->pattern->ipaddress)) {
iface_copy(search->found, iface);
return 1;
} else
return 0;
}
*/
return 0;
}
int iface_conf_read(struct iface_rec *iface)
{
struct iface_rec *def_iface;
int rc;
def_iface = iface_match_default(iface);
if (def_iface) {
/*
* older tools allowed default to have different
* transport_names so we do not want to overwrite
* it.
*/
if (!strcmp(def_iface->name, DEFAULT_IFACENAME)) {
if (!strlen(iface->name))
strcpy(iface->name, def_iface->name);
if (!strlen(iface->netdev))
strcpy(iface->netdev, def_iface->netdev);
if (!strlen(iface->hwaddress))
strcpy(iface->hwaddress, def_iface->hwaddress);
if (!strlen(iface->transport_name))
strcpy(iface->transport_name,
def_iface->transport_name);
if (!strlen(iface->iname))
strcpy(iface->iname, def_iface->iname);
} else {
iface_init(iface);
iface_copy(iface, def_iface);
}
return 0;
}
rc = idbm_lock();
if (rc)
return rc;
rc = __iface_conf_read(iface);
idbm_unlock();
return rc;
}
int iface_for_each_iface(void *data, int skip_def, int *nr_found,
iface_op_fn *fn)
{
DIR *iface_dirfd;
struct dirent *iface_dent;
struct iface_rec *iface, *def_iface;
int err = 0, i = 0;
if (!skip_def) {
while ((def_iface = default_ifaces[i++])) {
iface = iface_alloc(def_iface->name, &err);
if (!iface) {
log_error("Could not add iface %s.",
def_iface->name);
continue;
}
iface_copy(iface, def_iface);
err = fn(data, iface);
free(iface);
if (err)
return err;
(*nr_found)++;
}
}
iface_dirfd = opendir(IFACE_CONFIG_DIR);
if (!iface_dirfd)
return errno;
while ((iface_dent = readdir(iface_dirfd))) {
if (!strcmp(iface_dent->d_name, ".") ||
!strcmp(iface_dent->d_name, ".."))
continue;
log_debug(5, "iface_for_each_iface found %s",
iface_dent->d_name);
iface = iface_alloc(iface_dent->d_name, &err);
if (!iface || err) {
if (err == ISCSI_ERR_INVAL)
log_error("Invalid iface name %s. Must be "
"from 1 to %d characters.",
iface_dent->d_name,
ISCSI_MAX_IFACE_LEN - 1);
else
log_error("Could not add iface %s.",
iface_dent->d_name);
continue;
}
err = idbm_lock();
if (err) {
free(iface);
continue;
}
err = __iface_conf_read(iface);
idbm_unlock();
if (err) {
log_error("Could not read def iface %s (err %d)",
iface->name, err);
free(iface);
continue;
}
if (!iface_is_valid(iface)) {
log_debug(5, "iface is not valid "
"Iface settings " iface_fmt,
iface_str(iface));
free(iface);
continue;
}
err = fn(data, iface);
free(iface);
if (err)
break;
(*nr_found)++;
}
closedir(iface_dirfd);
return err;
}
