956 lines
26 KiB
C
956 lines
26 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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/***
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This file is part of systemd.
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Copyright 2013 Tom Gundersen <teg@jklm.no>
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <netinet/in.h>
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#include <linux/if_addrlabel.h>
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#include <stdbool.h>
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#include <unistd.h>
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#include "sd-netlink.h"
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#include "format-util.h"
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#include "missing.h"
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#include "netlink-internal.h"
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#include "netlink-types.h"
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#include "netlink-util.h"
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#include "refcnt.h"
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#include "socket-util.h"
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#include "util.h"
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int sd_rtnl_message_route_set_dst_prefixlen(sd_netlink_message *m, unsigned char prefixlen) {
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struct rtmsg *rtm;
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assert_return(m, -EINVAL);
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assert_return(m->hdr, -EINVAL);
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assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL);
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rtm = NLMSG_DATA(m->hdr);
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if ((rtm->rtm_family == AF_INET && prefixlen > 32) ||
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(rtm->rtm_family == AF_INET6 && prefixlen > 128))
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return -ERANGE;
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rtm->rtm_dst_len = prefixlen;
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return 0;
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}
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int sd_rtnl_message_route_set_src_prefixlen(sd_netlink_message *m, unsigned char prefixlen) {
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struct rtmsg *rtm;
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assert_return(m, -EINVAL);
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assert_return(m->hdr, -EINVAL);
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assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL);
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rtm = NLMSG_DATA(m->hdr);
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if ((rtm->rtm_family == AF_INET && prefixlen > 32) ||
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(rtm->rtm_family == AF_INET6 && prefixlen > 128))
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return -ERANGE;
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rtm->rtm_src_len = prefixlen;
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return 0;
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}
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int sd_rtnl_message_route_set_scope(sd_netlink_message *m, unsigned char scope) {
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struct rtmsg *rtm;
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assert_return(m, -EINVAL);
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assert_return(m->hdr, -EINVAL);
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assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL);
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rtm = NLMSG_DATA(m->hdr);
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rtm->rtm_scope = scope;
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return 0;
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}
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int sd_rtnl_message_route_set_flags(sd_netlink_message *m, unsigned flags) {
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struct rtmsg *rtm;
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assert_return(m, -EINVAL);
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assert_return(m->hdr, -EINVAL);
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assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL);
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rtm = NLMSG_DATA(m->hdr);
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rtm->rtm_flags = flags;
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return 0;
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}
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int sd_rtnl_message_route_get_flags(sd_netlink_message *m, unsigned *flags) {
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struct rtmsg *rtm;
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assert_return(m, -EINVAL);
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assert_return(m->hdr, -EINVAL);
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assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL);
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assert_return(flags, -EINVAL);
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rtm = NLMSG_DATA(m->hdr);
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*flags = rtm->rtm_flags;
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return 0;
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}
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int sd_rtnl_message_route_set_table(sd_netlink_message *m, unsigned char table) {
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struct rtmsg *rtm;
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assert_return(m, -EINVAL);
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assert_return(m->hdr, -EINVAL);
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assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL);
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rtm = NLMSG_DATA(m->hdr);
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rtm->rtm_table = table;
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return 0;
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}
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int sd_rtnl_message_route_get_family(sd_netlink_message *m, int *family) {
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struct rtmsg *rtm;
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assert_return(m, -EINVAL);
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assert_return(m->hdr, -EINVAL);
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assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL);
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assert_return(family, -EINVAL);
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rtm = NLMSG_DATA(m->hdr);
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*family = rtm->rtm_family;
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return 0;
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}
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int sd_rtnl_message_route_set_family(sd_netlink_message *m, int family) {
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struct rtmsg *rtm;
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assert_return(m, -EINVAL);
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assert_return(m->hdr, -EINVAL);
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assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL);
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rtm = NLMSG_DATA(m->hdr);
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rtm->rtm_family = family;
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return 0;
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}
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int sd_rtnl_message_route_get_type(sd_netlink_message *m, unsigned char *type) {
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struct rtmsg *rtm;
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assert_return(m, -EINVAL);
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assert_return(m->hdr, -EINVAL);
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assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL);
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assert_return(type, -EINVAL);
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rtm = NLMSG_DATA(m->hdr);
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*type = rtm->rtm_type;
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return 0;
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}
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int sd_rtnl_message_route_set_type(sd_netlink_message *m, unsigned char type) {
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struct rtmsg *rtm;
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assert_return(m, -EINVAL);
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assert_return(m->hdr, -EINVAL);
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assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL);
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rtm = NLMSG_DATA(m->hdr);
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rtm->rtm_type = type;
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return 0;
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}
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int sd_rtnl_message_route_get_protocol(sd_netlink_message *m, unsigned char *protocol) {
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struct rtmsg *rtm;
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assert_return(m, -EINVAL);
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assert_return(m->hdr, -EINVAL);
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assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL);
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assert_return(protocol, -EINVAL);
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rtm = NLMSG_DATA(m->hdr);
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*protocol = rtm->rtm_protocol;
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return 0;
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}
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int sd_rtnl_message_route_get_scope(sd_netlink_message *m, unsigned char *scope) {
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struct rtmsg *rtm;
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assert_return(m, -EINVAL);
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assert_return(m->hdr, -EINVAL);
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assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL);
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assert_return(scope, -EINVAL);
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rtm = NLMSG_DATA(m->hdr);
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*scope = rtm->rtm_scope;
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return 0;
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}
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int sd_rtnl_message_route_get_tos(sd_netlink_message *m, unsigned char *tos) {
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struct rtmsg *rtm;
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assert_return(m, -EINVAL);
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assert_return(m->hdr, -EINVAL);
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assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL);
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assert_return(tos, -EINVAL);
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rtm = NLMSG_DATA(m->hdr);
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*tos = rtm->rtm_tos;
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return 0;
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}
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int sd_rtnl_message_route_get_table(sd_netlink_message *m, unsigned char *table) {
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struct rtmsg *rtm;
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assert_return(m, -EINVAL);
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assert_return(m->hdr, -EINVAL);
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assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL);
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assert_return(table, -EINVAL);
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rtm = NLMSG_DATA(m->hdr);
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*table = rtm->rtm_table;
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return 0;
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}
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int sd_rtnl_message_route_get_dst_prefixlen(sd_netlink_message *m, unsigned char *dst_len) {
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struct rtmsg *rtm;
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assert_return(m, -EINVAL);
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assert_return(m->hdr, -EINVAL);
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assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL);
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assert_return(dst_len, -EINVAL);
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rtm = NLMSG_DATA(m->hdr);
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*dst_len = rtm->rtm_dst_len;
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return 0;
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}
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int sd_rtnl_message_route_get_src_prefixlen(sd_netlink_message *m, unsigned char *src_len) {
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struct rtmsg *rtm;
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assert_return(m, -EINVAL);
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assert_return(m->hdr, -EINVAL);
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assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL);
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assert_return(src_len, -EINVAL);
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rtm = NLMSG_DATA(m->hdr);
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*src_len = rtm->rtm_src_len;
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return 0;
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}
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int sd_rtnl_message_new_route(sd_netlink *rtnl, sd_netlink_message **ret,
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uint16_t nlmsg_type, int rtm_family,
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unsigned char rtm_protocol) {
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struct rtmsg *rtm;
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int r;
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assert_return(rtnl_message_type_is_route(nlmsg_type), -EINVAL);
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assert_return((nlmsg_type == RTM_GETROUTE && rtm_family == AF_UNSPEC) ||
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IN_SET(rtm_family, AF_INET, AF_INET6), -EINVAL);
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assert_return(ret, -EINVAL);
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r = message_new(rtnl, ret, nlmsg_type);
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if (r < 0)
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return r;
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if (nlmsg_type == RTM_NEWROUTE)
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(*ret)->hdr->nlmsg_flags |= NLM_F_CREATE | NLM_F_APPEND;
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rtm = NLMSG_DATA((*ret)->hdr);
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rtm->rtm_family = rtm_family;
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rtm->rtm_scope = RT_SCOPE_UNIVERSE;
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rtm->rtm_type = RTN_UNICAST;
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rtm->rtm_table = RT_TABLE_MAIN;
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rtm->rtm_protocol = rtm_protocol;
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return 0;
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}
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int sd_rtnl_message_neigh_set_flags(sd_netlink_message *m, uint8_t flags) {
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struct ndmsg *ndm;
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assert_return(m, -EINVAL);
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assert_return(m->hdr, -EINVAL);
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assert_return(rtnl_message_type_is_neigh(m->hdr->nlmsg_type), -EINVAL);
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ndm = NLMSG_DATA(m->hdr);
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ndm->ndm_flags |= flags;
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return 0;
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}
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int sd_rtnl_message_neigh_set_state(sd_netlink_message *m, uint16_t state) {
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struct ndmsg *ndm;
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assert_return(m, -EINVAL);
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assert_return(m->hdr, -EINVAL);
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assert_return(rtnl_message_type_is_neigh(m->hdr->nlmsg_type), -EINVAL);
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ndm = NLMSG_DATA(m->hdr);
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ndm->ndm_state |= state;
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return 0;
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}
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int sd_rtnl_message_neigh_get_flags(sd_netlink_message *m, uint8_t *flags) {
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struct ndmsg *ndm;
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assert_return(m, -EINVAL);
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assert_return(m->hdr, -EINVAL);
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assert_return(rtnl_message_type_is_neigh(m->hdr->nlmsg_type), -EINVAL);
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ndm = NLMSG_DATA(m->hdr);
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*flags = ndm->ndm_flags;
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return 0;
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}
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int sd_rtnl_message_neigh_get_state(sd_netlink_message *m, uint16_t *state) {
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struct ndmsg *ndm;
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assert_return(m, -EINVAL);
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assert_return(m->hdr, -EINVAL);
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assert_return(rtnl_message_type_is_neigh(m->hdr->nlmsg_type), -EINVAL);
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ndm = NLMSG_DATA(m->hdr);
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*state = ndm->ndm_state;
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return 0;
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}
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int sd_rtnl_message_neigh_get_family(sd_netlink_message *m, int *family) {
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struct ndmsg *ndm;
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assert_return(m, -EINVAL);
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assert_return(m->hdr, -EINVAL);
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assert_return(rtnl_message_type_is_neigh(m->hdr->nlmsg_type), -EINVAL);
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assert_return(family, -EINVAL);
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ndm = NLMSG_DATA(m->hdr);
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*family = ndm->ndm_family;
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return 0;
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}
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int sd_rtnl_message_neigh_get_ifindex(sd_netlink_message *m, int *index) {
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struct ndmsg *ndm;
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assert_return(m, -EINVAL);
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assert_return(m->hdr, -EINVAL);
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assert_return(rtnl_message_type_is_neigh(m->hdr->nlmsg_type), -EINVAL);
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assert_return(index, -EINVAL);
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ndm = NLMSG_DATA(m->hdr);
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*index = ndm->ndm_ifindex;
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return 0;
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}
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int sd_rtnl_message_new_neigh(sd_netlink *rtnl, sd_netlink_message **ret, uint16_t nlmsg_type, int index, int ndm_family) {
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struct ndmsg *ndm;
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int r;
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assert_return(rtnl_message_type_is_neigh(nlmsg_type), -EINVAL);
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assert_return(IN_SET(ndm_family, AF_INET, AF_INET6, PF_BRIDGE), -EINVAL);
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assert_return(ret, -EINVAL);
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r = message_new(rtnl, ret, nlmsg_type);
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if (r < 0)
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return r;
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if (nlmsg_type == RTM_NEWNEIGH)
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(*ret)->hdr->nlmsg_flags |= NLM_F_CREATE | NLM_F_APPEND;
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ndm = NLMSG_DATA((*ret)->hdr);
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ndm->ndm_family = ndm_family;
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ndm->ndm_ifindex = index;
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return 0;
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}
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int sd_rtnl_message_link_set_flags(sd_netlink_message *m, unsigned flags, unsigned change) {
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struct ifinfomsg *ifi;
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assert_return(m, -EINVAL);
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assert_return(m->hdr, -EINVAL);
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assert_return(rtnl_message_type_is_link(m->hdr->nlmsg_type), -EINVAL);
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assert_return(change, -EINVAL);
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ifi = NLMSG_DATA(m->hdr);
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ifi->ifi_flags = flags;
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ifi->ifi_change = change;
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return 0;
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}
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int sd_rtnl_message_link_set_type(sd_netlink_message *m, unsigned type) {
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struct ifinfomsg *ifi;
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assert_return(m, -EINVAL);
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assert_return(m->hdr, -EINVAL);
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assert_return(rtnl_message_type_is_link(m->hdr->nlmsg_type), -EINVAL);
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ifi = NLMSG_DATA(m->hdr);
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ifi->ifi_type = type;
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return 0;
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}
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int sd_rtnl_message_link_set_family(sd_netlink_message *m, unsigned family) {
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struct ifinfomsg *ifi;
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assert_return(m, -EINVAL);
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assert_return(m->hdr, -EINVAL);
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assert_return(rtnl_message_type_is_link(m->hdr->nlmsg_type), -EINVAL);
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ifi = NLMSG_DATA(m->hdr);
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ifi->ifi_family = family;
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return 0;
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}
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int sd_rtnl_message_new_link(sd_netlink *rtnl, sd_netlink_message **ret,
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uint16_t nlmsg_type, int index) {
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struct ifinfomsg *ifi;
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int r;
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assert_return(rtnl_message_type_is_link(nlmsg_type), -EINVAL);
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assert_return(ret, -EINVAL);
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r = message_new(rtnl, ret, nlmsg_type);
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if (r < 0)
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return r;
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if (nlmsg_type == RTM_NEWLINK)
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(*ret)->hdr->nlmsg_flags |= NLM_F_CREATE | NLM_F_EXCL;
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ifi = NLMSG_DATA((*ret)->hdr);
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ifi->ifi_family = AF_UNSPEC;
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ifi->ifi_index = index;
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return 0;
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}
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int sd_rtnl_message_addr_set_prefixlen(sd_netlink_message *m, unsigned char prefixlen) {
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struct ifaddrmsg *ifa;
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assert_return(m, -EINVAL);
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assert_return(m->hdr, -EINVAL);
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assert_return(rtnl_message_type_is_addr(m->hdr->nlmsg_type), -EINVAL);
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ifa = NLMSG_DATA(m->hdr);
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if ((ifa->ifa_family == AF_INET && prefixlen > 32) ||
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(ifa->ifa_family == AF_INET6 && prefixlen > 128))
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return -ERANGE;
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ifa->ifa_prefixlen = prefixlen;
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return 0;
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}
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int sd_rtnl_message_addr_set_flags(sd_netlink_message *m, unsigned char flags) {
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struct ifaddrmsg *ifa;
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assert_return(m, -EINVAL);
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assert_return(m->hdr, -EINVAL);
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assert_return(rtnl_message_type_is_addr(m->hdr->nlmsg_type), -EINVAL);
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ifa = NLMSG_DATA(m->hdr);
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ifa->ifa_flags = flags;
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return 0;
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}
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int sd_rtnl_message_addr_set_scope(sd_netlink_message *m, unsigned char scope) {
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struct ifaddrmsg *ifa;
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assert_return(m, -EINVAL);
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assert_return(m->hdr, -EINVAL);
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assert_return(rtnl_message_type_is_addr(m->hdr->nlmsg_type), -EINVAL);
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ifa = NLMSG_DATA(m->hdr);
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|
ifa->ifa_scope = scope;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int sd_rtnl_message_addr_get_family(sd_netlink_message *m, int *family) {
|
|
struct ifaddrmsg *ifa;
|
|
|
|
assert_return(m, -EINVAL);
|
|
assert_return(m->hdr, -EINVAL);
|
|
assert_return(rtnl_message_type_is_addr(m->hdr->nlmsg_type), -EINVAL);
|
|
assert_return(family, -EINVAL);
|
|
|
|
ifa = NLMSG_DATA(m->hdr);
|
|
|
|
*family = ifa->ifa_family;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int sd_rtnl_message_addr_get_prefixlen(sd_netlink_message *m, unsigned char *prefixlen) {
|
|
struct ifaddrmsg *ifa;
|
|
|
|
assert_return(m, -EINVAL);
|
|
assert_return(m->hdr, -EINVAL);
|
|
assert_return(rtnl_message_type_is_addr(m->hdr->nlmsg_type), -EINVAL);
|
|
assert_return(prefixlen, -EINVAL);
|
|
|
|
ifa = NLMSG_DATA(m->hdr);
|
|
|
|
*prefixlen = ifa->ifa_prefixlen;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int sd_rtnl_message_addr_get_scope(sd_netlink_message *m, unsigned char *scope) {
|
|
struct ifaddrmsg *ifa;
|
|
|
|
assert_return(m, -EINVAL);
|
|
assert_return(m->hdr, -EINVAL);
|
|
assert_return(rtnl_message_type_is_addr(m->hdr->nlmsg_type), -EINVAL);
|
|
assert_return(scope, -EINVAL);
|
|
|
|
ifa = NLMSG_DATA(m->hdr);
|
|
|
|
*scope = ifa->ifa_scope;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int sd_rtnl_message_addr_get_flags(sd_netlink_message *m, unsigned char *flags) {
|
|
struct ifaddrmsg *ifa;
|
|
|
|
assert_return(m, -EINVAL);
|
|
assert_return(m->hdr, -EINVAL);
|
|
assert_return(rtnl_message_type_is_addr(m->hdr->nlmsg_type), -EINVAL);
|
|
assert_return(flags, -EINVAL);
|
|
|
|
ifa = NLMSG_DATA(m->hdr);
|
|
|
|
*flags = ifa->ifa_flags;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int sd_rtnl_message_addr_get_ifindex(sd_netlink_message *m, int *ifindex) {
|
|
struct ifaddrmsg *ifa;
|
|
|
|
assert_return(m, -EINVAL);
|
|
assert_return(m->hdr, -EINVAL);
|
|
assert_return(rtnl_message_type_is_addr(m->hdr->nlmsg_type), -EINVAL);
|
|
assert_return(ifindex, -EINVAL);
|
|
|
|
ifa = NLMSG_DATA(m->hdr);
|
|
|
|
*ifindex = ifa->ifa_index;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int sd_rtnl_message_new_addr(sd_netlink *rtnl, sd_netlink_message **ret,
|
|
uint16_t nlmsg_type, int index,
|
|
int family) {
|
|
struct ifaddrmsg *ifa;
|
|
int r;
|
|
|
|
assert_return(rtnl_message_type_is_addr(nlmsg_type), -EINVAL);
|
|
assert_return((nlmsg_type == RTM_GETADDR && index == 0) ||
|
|
index > 0, -EINVAL);
|
|
assert_return((nlmsg_type == RTM_GETADDR && family == AF_UNSPEC) ||
|
|
IN_SET(family, AF_INET, AF_INET6), -EINVAL);
|
|
assert_return(ret, -EINVAL);
|
|
|
|
r = message_new(rtnl, ret, nlmsg_type);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (nlmsg_type == RTM_GETADDR)
|
|
(*ret)->hdr->nlmsg_flags |= NLM_F_DUMP;
|
|
|
|
ifa = NLMSG_DATA((*ret)->hdr);
|
|
|
|
ifa->ifa_index = index;
|
|
ifa->ifa_family = family;
|
|
if (family == AF_INET)
|
|
ifa->ifa_prefixlen = 32;
|
|
else if (family == AF_INET6)
|
|
ifa->ifa_prefixlen = 128;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int sd_rtnl_message_new_addr_update(sd_netlink *rtnl, sd_netlink_message **ret,
|
|
int index, int family) {
|
|
int r;
|
|
|
|
r = sd_rtnl_message_new_addr(rtnl, ret, RTM_NEWADDR, index, family);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
(*ret)->hdr->nlmsg_flags |= NLM_F_REPLACE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int sd_rtnl_message_link_get_ifindex(sd_netlink_message *m, int *ifindex) {
|
|
struct ifinfomsg *ifi;
|
|
|
|
assert_return(m, -EINVAL);
|
|
assert_return(m->hdr, -EINVAL);
|
|
assert_return(rtnl_message_type_is_link(m->hdr->nlmsg_type), -EINVAL);
|
|
assert_return(ifindex, -EINVAL);
|
|
|
|
ifi = NLMSG_DATA(m->hdr);
|
|
|
|
*ifindex = ifi->ifi_index;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int sd_rtnl_message_link_get_flags(sd_netlink_message *m, unsigned *flags) {
|
|
struct ifinfomsg *ifi;
|
|
|
|
assert_return(m, -EINVAL);
|
|
assert_return(m->hdr, -EINVAL);
|
|
assert_return(rtnl_message_type_is_link(m->hdr->nlmsg_type), -EINVAL);
|
|
assert_return(flags, -EINVAL);
|
|
|
|
ifi = NLMSG_DATA(m->hdr);
|
|
|
|
*flags = ifi->ifi_flags;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int sd_rtnl_message_link_get_type(sd_netlink_message *m, unsigned short *type) {
|
|
struct ifinfomsg *ifi;
|
|
|
|
assert_return(m, -EINVAL);
|
|
assert_return(m->hdr, -EINVAL);
|
|
assert_return(rtnl_message_type_is_link(m->hdr->nlmsg_type), -EINVAL);
|
|
assert_return(type, -EINVAL);
|
|
|
|
ifi = NLMSG_DATA(m->hdr);
|
|
|
|
*type = ifi->ifi_type;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int sd_rtnl_message_get_family(sd_netlink_message *m, int *family) {
|
|
assert_return(m, -EINVAL);
|
|
assert_return(family, -EINVAL);
|
|
|
|
assert(m->hdr);
|
|
|
|
if (rtnl_message_type_is_link(m->hdr->nlmsg_type)) {
|
|
struct ifinfomsg *ifi;
|
|
|
|
ifi = NLMSG_DATA(m->hdr);
|
|
|
|
*family = ifi->ifi_family;
|
|
|
|
return 0;
|
|
} else if (rtnl_message_type_is_route(m->hdr->nlmsg_type)) {
|
|
struct rtmsg *rtm;
|
|
|
|
rtm = NLMSG_DATA(m->hdr);
|
|
|
|
*family = rtm->rtm_family;
|
|
|
|
return 0;
|
|
} else if (rtnl_message_type_is_neigh(m->hdr->nlmsg_type)) {
|
|
struct ndmsg *ndm;
|
|
|
|
ndm = NLMSG_DATA(m->hdr);
|
|
|
|
*family = ndm->ndm_family;
|
|
|
|
return 0;
|
|
} else if (rtnl_message_type_is_addr(m->hdr->nlmsg_type)) {
|
|
struct ifaddrmsg *ifa;
|
|
|
|
ifa = NLMSG_DATA(m->hdr);
|
|
|
|
*family = ifa->ifa_family;
|
|
|
|
return 0;
|
|
} else if (rtnl_message_type_is_routing_policy_rule(m->hdr->nlmsg_type)) {
|
|
struct rtmsg *rtm;
|
|
|
|
rtm = NLMSG_DATA(m->hdr);
|
|
|
|
*family = rtm->rtm_family;
|
|
|
|
return 0;
|
|
}
|
|
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
int sd_rtnl_message_new_addrlabel(sd_netlink *rtnl, sd_netlink_message **ret, uint16_t nlmsg_type, int ifindex, int ifal_family) {
|
|
struct ifaddrlblmsg *addrlabel;
|
|
int r;
|
|
|
|
assert_return(rtnl_message_type_is_addrlabel(nlmsg_type), -EINVAL);
|
|
assert_return(ret, -EINVAL);
|
|
|
|
r = message_new(rtnl, ret, nlmsg_type);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (nlmsg_type == RTM_NEWADDRLABEL)
|
|
(*ret)->hdr->nlmsg_flags |= NLM_F_CREATE | NLM_F_EXCL;
|
|
|
|
addrlabel = NLMSG_DATA((*ret)->hdr);
|
|
|
|
addrlabel->ifal_family = ifal_family;
|
|
addrlabel->ifal_index = ifindex;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int sd_rtnl_message_addrlabel_set_prefixlen(sd_netlink_message *m, unsigned char prefixlen) {
|
|
struct ifaddrlblmsg *addrlabel;
|
|
|
|
assert_return(m, -EINVAL);
|
|
assert_return(m->hdr, -EINVAL);
|
|
assert_return(rtnl_message_type_is_addrlabel(m->hdr->nlmsg_type), -EINVAL);
|
|
|
|
addrlabel = NLMSG_DATA(m->hdr);
|
|
|
|
if (prefixlen > 128)
|
|
return -ERANGE;
|
|
|
|
addrlabel->ifal_prefixlen = prefixlen;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int sd_rtnl_message_addrlabel_get_prefixlen(sd_netlink_message *m, unsigned char *prefixlen) {
|
|
struct ifaddrlblmsg *addrlabel;
|
|
|
|
assert_return(m, -EINVAL);
|
|
assert_return(m->hdr, -EINVAL);
|
|
assert_return(rtnl_message_type_is_addrlabel(m->hdr->nlmsg_type), -EINVAL);
|
|
|
|
addrlabel = NLMSG_DATA(m->hdr);
|
|
|
|
*prefixlen = addrlabel->ifal_prefixlen;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int sd_rtnl_message_new_routing_policy_rule(sd_netlink *rtnl, sd_netlink_message **ret, uint16_t nlmsg_type, int ifal_family) {
|
|
struct rtmsg *rtm;
|
|
int r;
|
|
|
|
assert_return(rtnl_message_type_is_routing_policy_rule(nlmsg_type), -EINVAL);
|
|
assert_return(ret, -EINVAL);
|
|
|
|
r = message_new(rtnl, ret, nlmsg_type);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (nlmsg_type == RTM_NEWRULE)
|
|
(*ret)->hdr->nlmsg_flags |= NLM_F_CREATE | NLM_F_EXCL;
|
|
|
|
rtm = NLMSG_DATA((*ret)->hdr);
|
|
rtm->rtm_family = ifal_family;
|
|
rtm->rtm_protocol = RTPROT_BOOT;
|
|
rtm->rtm_scope = RT_SCOPE_UNIVERSE;
|
|
rtm->rtm_type = RTN_UNICAST;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int sd_rtnl_message_routing_policy_rule_set_tos(sd_netlink_message *m, unsigned char tos) {
|
|
struct rtmsg *routing_policy_rule;
|
|
|
|
assert_return(m, -EINVAL);
|
|
assert_return(m->hdr, -EINVAL);
|
|
assert_return(rtnl_message_type_is_routing_policy_rule(m->hdr->nlmsg_type), -EINVAL);
|
|
|
|
routing_policy_rule = NLMSG_DATA(m->hdr);
|
|
|
|
routing_policy_rule->rtm_tos = tos;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int sd_rtnl_message_routing_policy_rule_get_tos(sd_netlink_message *m, unsigned char *tos) {
|
|
struct rtmsg *routing_policy_rule;
|
|
|
|
assert_return(m, -EINVAL);
|
|
assert_return(m->hdr, -EINVAL);
|
|
assert_return(rtnl_message_type_is_routing_policy_rule(m->hdr->nlmsg_type), -EINVAL);
|
|
|
|
routing_policy_rule = NLMSG_DATA(m->hdr);
|
|
|
|
*tos = routing_policy_rule->rtm_tos;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int sd_rtnl_message_routing_policy_rule_set_table(sd_netlink_message *m, unsigned char table) {
|
|
struct rtmsg *routing_policy_rule;
|
|
|
|
assert_return(m, -EINVAL);
|
|
assert_return(m->hdr, -EINVAL);
|
|
assert_return(rtnl_message_type_is_routing_policy_rule(m->hdr->nlmsg_type), -EINVAL);
|
|
|
|
routing_policy_rule = NLMSG_DATA(m->hdr);
|
|
|
|
routing_policy_rule->rtm_table = table;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int sd_rtnl_message_routing_policy_rule_get_table(sd_netlink_message *m, unsigned char *table) {
|
|
struct rtmsg *routing_policy_rule;
|
|
|
|
assert_return(m, -EINVAL);
|
|
assert_return(m->hdr, -EINVAL);
|
|
assert_return(rtnl_message_type_is_routing_policy_rule(m->hdr->nlmsg_type), -EINVAL);
|
|
|
|
routing_policy_rule = NLMSG_DATA(m->hdr);
|
|
|
|
*table = routing_policy_rule->rtm_table;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int sd_rtnl_message_routing_policy_rule_set_rtm_type(sd_netlink_message *m, unsigned char type) {
|
|
struct rtmsg *routing_policy_rule;
|
|
|
|
assert_return(m, -EINVAL);
|
|
assert_return(m->hdr, -EINVAL);
|
|
assert_return(rtnl_message_type_is_routing_policy_rule(m->hdr->nlmsg_type), -EINVAL);
|
|
|
|
routing_policy_rule = NLMSG_DATA(m->hdr);
|
|
|
|
routing_policy_rule->rtm_type = type;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int sd_rtnl_message_routing_policy_rule_get_rtm_type(sd_netlink_message *m, unsigned char *type) {
|
|
struct rtmsg *routing_policy_rule;
|
|
|
|
assert_return(m, -EINVAL);
|
|
assert_return(m->hdr, -EINVAL);
|
|
assert_return(rtnl_message_type_is_routing_policy_rule(m->hdr->nlmsg_type), -EINVAL);
|
|
|
|
routing_policy_rule = NLMSG_DATA(m->hdr);
|
|
|
|
*type = routing_policy_rule->rtm_type;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int sd_rtnl_message_routing_policy_rule_set_rtm_dst_prefixlen(sd_netlink_message *m, unsigned char len) {
|
|
struct rtmsg *routing_policy_rule;
|
|
|
|
assert_return(m, -EINVAL);
|
|
assert_return(m->hdr, -EINVAL);
|
|
assert_return(rtnl_message_type_is_routing_policy_rule(m->hdr->nlmsg_type), -EINVAL);
|
|
|
|
routing_policy_rule = NLMSG_DATA(m->hdr);
|
|
|
|
routing_policy_rule->rtm_dst_len = len;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int sd_rtnl_message_routing_policy_rule_get_rtm_dst_prefixlen(sd_netlink_message *m, unsigned char *len) {
|
|
struct rtmsg *routing_policy_rule;
|
|
|
|
assert_return(m, -EINVAL);
|
|
assert_return(m->hdr, -EINVAL);
|
|
assert_return(rtnl_message_type_is_routing_policy_rule(m->hdr->nlmsg_type), -EINVAL);
|
|
|
|
routing_policy_rule = NLMSG_DATA(m->hdr);
|
|
|
|
*len = routing_policy_rule->rtm_dst_len;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int sd_rtnl_message_routing_policy_rule_set_rtm_src_prefixlen(sd_netlink_message *m, unsigned char len) {
|
|
struct rtmsg *routing_policy_rule;
|
|
|
|
assert_return(m, -EINVAL);
|
|
assert_return(m->hdr, -EINVAL);
|
|
assert_return(rtnl_message_type_is_routing_policy_rule(m->hdr->nlmsg_type), -EINVAL);
|
|
|
|
routing_policy_rule = NLMSG_DATA(m->hdr);
|
|
|
|
routing_policy_rule->rtm_src_len = len;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int sd_rtnl_message_routing_policy_rule_get_rtm_src_prefixlen(sd_netlink_message *m, unsigned char *len) {
|
|
struct rtmsg *routing_policy_rule;
|
|
|
|
assert_return(m, -EINVAL);
|
|
assert_return(m->hdr, -EINVAL);
|
|
assert_return(rtnl_message_type_is_routing_policy_rule(m->hdr->nlmsg_type), -EINVAL);
|
|
|
|
routing_policy_rule = NLMSG_DATA(m->hdr);
|
|
|
|
*len = routing_policy_rule->rtm_src_len;
|
|
|
|
return 0;
|
|
}
|