-/***
- This file is part of systemd.
-
- Copyright 2017 Susant Sahani
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
+/* SPDX-License-Identifier: LGPL-2.1+ */
#include <net/if.h>
#include <linux/if_addrlabel.h>
#include "parse-util.h"
#include "socket-util.h"
-int address_label_new(AddressLabel **ret) {
- _cleanup_address_label_free_ AddressLabel *addrlabel = NULL;
-
- addrlabel = new0(AddressLabel, 1);
- if (!addrlabel)
- return -ENOMEM;
-
- *ret = addrlabel;
- addrlabel = NULL;
-
- return 0;
-}
-
void address_label_free(AddressLabel *label) {
if (!label)
return;
}
static int address_label_new_static(Network *network, const char *filename, unsigned section_line, AddressLabel **ret) {
- _cleanup_network_config_section_free_ NetworkConfigSection *n = NULL;
- _cleanup_address_label_free_ AddressLabel *label = NULL;
+ _cleanup_(network_config_section_freep) NetworkConfigSection *n = NULL;
+ _cleanup_(address_label_freep) AddressLabel *label = NULL;
int r;
assert(network);
assert(ret);
assert(!!filename == (section_line > 0));
- r = network_config_section_new(filename, section_line, &n);
- if (r < 0)
- return r;
+ if (filename) {
+ r = network_config_section_new(filename, section_line, &n);
+ if (r < 0)
+ return r;
- label = hashmap_get(network->address_labels_by_section, n);
- if (label) {
- *ret = label;
- label = NULL;
+ label = hashmap_get(network->address_labels_by_section, n);
+ if (label) {
+ *ret = TAKE_PTR(label);
- return 0;
+ return 0;
+ }
}
- r = address_label_new(&label);
- if (r < 0)
- return r;
-
- label->section = n;
- n = NULL;
+ label = new(AddressLabel, 1);
+ if (!label)
+ return -ENOMEM;
- r = hashmap_put(network->address_labels_by_section, label->section, label);
- if (r < 0)
- return r;
+ *label = (AddressLabel) {
+ .network = network,
+ };
- label->network = network;
LIST_APPEND(labels, network->address_labels, label);
network->n_address_labels++;
- *ret = label;
- label = NULL;
+ if (filename) {
+ label->section = TAKE_PTR(n);
+
+ r = hashmap_ensure_allocated(&network->address_labels_by_section, &network_config_hash_ops);
+ if (r < 0)
+ return r;
+
+ r = hashmap_put(network->address_labels_by_section, label->section, label);
+ if (r < 0)
+ return r;
+ }
+
+ *ret = TAKE_PTR(label);
return 0;
}
+static int address_label_handler(sd_netlink *rtnl, sd_netlink_message *m, Link *link) {
+ int r;
+
+ assert(rtnl);
+ assert(m);
+ assert(link);
+ assert(link->ifname);
+ assert(link->address_label_messages > 0);
+
+ link->address_label_messages--;
+
+ if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
+ return 1;
+
+ r = sd_netlink_message_get_errno(m);
+ if (r < 0 && r != -EEXIST)
+ log_link_warning_errno(link, r, "could not set address label: %m");
+ else if (r >= 0)
+ manager_rtnl_process_address(rtnl, m, link->manager);
+
+ if (link->address_label_messages == 0)
+ log_link_debug(link, "Addresses label set");
+
+ return 1;
+}
+
int address_label_configure(
AddressLabel *label,
Link *link,
- sd_netlink_message_handler_t callback,
+ link_netlink_message_handler_t callback,
bool update) {
_cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL;
assert(link->manager->rtnl);
r = sd_rtnl_message_new_addrlabel(link->manager->rtnl, &req, RTM_NEWADDRLABEL,
- link->ifindex, label->family);
+ link->ifindex, AF_INET6);
if (r < 0)
return log_error_errno(r, "Could not allocate RTM_NEWADDR message: %m");
if (r < 0)
return log_error_errno(r, "Could not append IFA_ADDRESS attribute: %m");
- r = sd_netlink_call_async(link->manager->rtnl, req, callback, link, 0, NULL);
+ r = netlink_call_async(link->manager->rtnl, NULL, req,
+ callback ?: address_label_handler,
+ link_netlink_destroy_callback, link);
if (r < 0)
return log_error_errno(r, "Could not send rtnetlink message: %m");
void *data,
void *userdata) {
- _cleanup_address_label_free_ AddressLabel *n = NULL;
+ _cleanup_(address_label_free_or_set_invalidp) AddressLabel *n = NULL;
Network *network = userdata;
- const char *prefix, *e;
- union in_addr_union buffer;
- int r, f;
+ int r;
assert(filename);
assert(section);
if (r < 0)
return r;
- /* AddressLabel=prefix/prefixlen */
-
- /* prefixlen */
- e = strchr(rvalue, '/');
- if (e) {
- unsigned i;
-
- r = safe_atou(e + 1, &i);
- if (r < 0) {
- log_syntax(unit, LOG_ERR, filename, line, r, "Prefix length is invalid, ignoring assignment: %s", e + 1);
- return 0;
- }
-
- if (i > 128) {
- log_syntax(unit, LOG_ERR, filename, line, r, "Prefix length is out of range, ignoring assignment: %s", e + 1);
- return 0;
- }
-
- n->prefixlen = (unsigned char) i;
-
- prefix = strndupa(rvalue, e - rvalue);
- } else
- prefix = rvalue;
-
- r = in_addr_from_string_auto(prefix, &f, &buffer);
+ r = in_addr_prefix_from_string(rvalue, AF_INET6, &n->in_addr, &n->prefixlen);
if (r < 0) {
- log_syntax(unit, LOG_ERR, filename, line, r, "Address label is invalid, ignoring assignment: %s", prefix);
- return 0;
- }
-
- if (f != AF_INET6) {
- log_syntax(unit, LOG_ERR, filename, line, 0, "Address label family is not IPv6, ignoring assignment: %s", prefix);
+ log_syntax(unit, LOG_ERR, filename, line, r, "Address label is invalid, ignoring assignment: %s", rvalue);
return 0;
}
- n->family = f;
- n->in_addr = buffer;
-
n = NULL;
return 0;
void *data,
void *userdata) {
- _cleanup_address_label_free_ AddressLabel *n = NULL;
+ _cleanup_(address_label_free_or_set_invalidp) AddressLabel *n = NULL;
Network *network = userdata;
uint32_t k;
int r;
}
if (k == 0xffffffffUL) {
- log_syntax(unit, LOG_ERR, filename, line, r, "Adress label is invalid, ignoring: %s", rvalue);
+ log_syntax(unit, LOG_ERR, filename, line, r, "Address label is invalid, ignoring: %s", rvalue);
return 0;
}
projects / thirdparty / systemd.git / blobdiff