2013-10-21 20:12:52 +02:00
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/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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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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2013-11-07 03:39:32 +01:00
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#include <linux/rtnetlink.h>
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2013-10-21 20:12:52 +02:00
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#include <netinet/in.h>
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#include <netinet/ether.h>
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#include <stdbool.h>
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#include <unistd.h>
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#include "util.h"
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#include "refcnt.h"
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#include "sd-rtnl.h"
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#include "rtnl-internal.h"
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struct sd_rtnl_message {
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RefCount n_ref;
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struct nlmsghdr *hdr;
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2013-12-31 18:56:59 +01:00
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size_t container_offset; /* offset from hdr to container start */
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size_t next_rta_offset; /* offset from hdr to next rta */
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2013-10-21 20:12:52 +02:00
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bool sealed:1;
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};
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2013-12-31 18:56:59 +01:00
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#define CURRENT_CONTAINER(m) ((m)->container_offset ? (struct rtattr*)((uint8_t*)(m)->hdr + (m)->container_offset) : NULL)
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#define NEXT_RTA(m) ((struct rtattr*)((uint8_t*)(m)->hdr + (m)->next_rta_offset))
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#define UPDATE_RTA(m, new) (m)->next_rta_offset = (uint8_t*)(new) - (uint8_t*)(m)->hdr;
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2013-10-21 20:12:52 +02:00
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static int message_new(sd_rtnl_message **ret, size_t initial_size) {
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sd_rtnl_message *m;
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assert_return(ret, -EINVAL);
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2013-10-29 15:03:27 +01:00
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assert_return(initial_size >= sizeof(struct nlmsghdr), -EINVAL);
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2013-10-21 20:12:52 +02:00
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m = new0(sd_rtnl_message, 1);
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if (!m)
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return -ENOMEM;
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2013-10-29 15:57:54 +01:00
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m->hdr = malloc0(initial_size);
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2013-10-21 20:12:52 +02:00
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if (!m->hdr) {
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free(m);
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return -ENOMEM;
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}
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m->n_ref = REFCNT_INIT;
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m->hdr->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
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m->sealed = false;
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*ret = m;
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return 0;
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}
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2013-11-13 23:18:20 +01:00
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int message_new_synthetic_error(int error, uint32_t serial, sd_rtnl_message **ret) {
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struct nlmsgerr *err;
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int r;
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assert(error <= 0);
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r = message_new(ret, NLMSG_SPACE(sizeof(struct nlmsgerr)));
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if (r < 0)
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return r;
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(*ret)->hdr->nlmsg_len = NLMSG_LENGTH(sizeof(struct nlmsgerr));
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(*ret)->hdr->nlmsg_type = NLMSG_ERROR;
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(*ret)->hdr->nlmsg_seq = serial;
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err = NLMSG_DATA((*ret)->hdr);
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err->error = error;
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return 0;
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}
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2013-12-06 15:13:34 +01:00
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bool message_type_is_route(uint16_t type) {
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switch (type) {
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case RTM_NEWROUTE:
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case RTM_GETROUTE:
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case RTM_DELROUTE:
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return true;
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default:
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return false;
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}
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}
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bool message_type_is_link(uint16_t type) {
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switch (type) {
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case RTM_NEWLINK:
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case RTM_SETLINK:
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case RTM_GETLINK:
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case RTM_DELLINK:
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return true;
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default:
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return false;
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}
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}
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bool message_type_is_addr(uint16_t type) {
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switch (type) {
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case RTM_NEWADDR:
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case RTM_GETADDR:
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case RTM_DELADDR:
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return true;
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default:
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return false;
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}
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}
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2013-12-07 21:18:44 +01:00
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int sd_rtnl_message_route_set_dst_prefixlen(sd_rtnl_message *m, unsigned char prefixlen) {
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struct rtmsg *rtm;
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2014-01-21 15:55:57 +01:00
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assert_return(m, -EINVAL);
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assert_return(m->hdr, -EINVAL);
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assert_return(message_type_is_route(m->hdr->nlmsg_type), -EINVAL);
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2013-12-07 21:18:44 +01:00
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rtm = NLMSG_DATA(m->hdr);
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2014-01-21 15:55:57 +01:00
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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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2013-12-07 21:18:44 +01:00
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rtm->rtm_dst_len = prefixlen;
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return 0;
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}
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2013-11-04 02:42:23 +01:00
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int sd_rtnl_message_route_new(uint16_t nlmsg_type, unsigned char rtm_family,
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2013-12-07 21:18:44 +01:00
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sd_rtnl_message **ret) {
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2013-11-04 02:42:23 +01:00
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struct rtmsg *rtm;
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int r;
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2013-12-06 15:13:34 +01:00
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assert_return(message_type_is_route(nlmsg_type), -EINVAL);
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2013-12-07 21:18:44 +01:00
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assert_return(rtm_family == AF_INET || rtm_family == AF_INET6, -EINVAL);
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2013-11-04 02:42:23 +01:00
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assert_return(ret, -EINVAL);
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r = message_new(ret, NLMSG_SPACE(sizeof(struct rtmsg)));
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if (r < 0)
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return r;
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(*ret)->hdr->nlmsg_len = NLMSG_LENGTH(sizeof(struct rtmsg));
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(*ret)->hdr->nlmsg_type = nlmsg_type;
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if (nlmsg_type == RTM_NEWROUTE)
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(*ret)->hdr->nlmsg_flags |= NLM_F_CREATE | NLM_F_EXCL;
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rtm = NLMSG_DATA((*ret)->hdr);
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2013-12-31 18:56:59 +01:00
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UPDATE_RTA(*ret, RTM_RTA(rtm));
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2013-12-06 17:19:55 +01:00
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2013-11-04 02:42:23 +01:00
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rtm->rtm_family = rtm_family;
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2013-12-07 21:18:44 +01:00
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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 = RTPROT_BOOT;
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2013-11-04 02:42:23 +01:00
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return 0;
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}
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2014-01-21 15:20:42 +01:00
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int sd_rtnl_message_link_set_flags(sd_rtnl_message *m, unsigned flags, unsigned change) {
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2013-12-06 18:16:16 +01:00
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struct ifinfomsg *ifi;
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2014-01-21 15:55:57 +01:00
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assert_return(m, -EINVAL);
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assert_return(m->hdr, -EINVAL);
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assert_return(message_type_is_link(m->hdr->nlmsg_type), -EINVAL);
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2013-12-06 18:16:16 +01:00
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ifi = NLMSG_DATA(m->hdr);
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ifi->ifi_flags = flags;
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2014-01-21 15:20:42 +01:00
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if (change)
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ifi->ifi_change = change;
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else
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ifi->ifi_change = 0xffffffff;
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2013-12-06 18:16:16 +01:00
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return 0;
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}
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int sd_rtnl_message_link_set_type(sd_rtnl_message *m, unsigned type) {
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struct ifinfomsg *ifi;
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2014-01-21 15:55:57 +01:00
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assert_return(m, -EINVAL);
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assert_return(m->hdr, -EINVAL);
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assert_return(message_type_is_link(m->hdr->nlmsg_type), -EINVAL);
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2013-12-06 18:16:16 +01:00
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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_new(uint16_t nlmsg_type, int index, sd_rtnl_message **ret) {
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2013-10-21 20:12:52 +02:00
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struct ifinfomsg *ifi;
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int r;
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2013-12-06 15:13:34 +01:00
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assert_return(message_type_is_link(nlmsg_type), -EINVAL);
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2013-11-21 20:44:29 +01:00
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assert_return(nlmsg_type == RTM_NEWLINK || index > 0, -EINVAL);
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2013-10-21 20:12:52 +02:00
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assert_return(ret, -EINVAL);
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r = message_new(ret, NLMSG_SPACE(sizeof(struct ifinfomsg)));
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if (r < 0)
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return r;
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(*ret)->hdr->nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
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(*ret)->hdr->nlmsg_type = nlmsg_type;
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2013-11-21 20:44:29 +01:00
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if (nlmsg_type == RTM_NEWLINK)
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(*ret)->hdr->nlmsg_flags |= NLM_F_CREATE;
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2013-10-21 20:12:52 +02:00
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2013-10-29 15:03:27 +01:00
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ifi = NLMSG_DATA((*ret)->hdr);
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2013-10-21 20:12:52 +02:00
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ifi->ifi_family = AF_UNSPEC;
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ifi->ifi_index = index;
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2013-12-31 18:56:59 +01:00
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UPDATE_RTA(*ret, IFLA_RTA(ifi));
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2013-12-06 17:19:55 +01:00
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2013-10-21 20:12:52 +02:00
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return 0;
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}
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2014-01-21 15:55:57 +01:00
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int sd_rtnl_message_addr_set_prefixlen(sd_rtnl_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(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_rtnl_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(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_rtnl_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(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;
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return 0;
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}
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int sd_rtnl_message_addr_new(uint16_t nlmsg_type, int index, unsigned char family,
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sd_rtnl_message **ret) {
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2013-10-21 20:12:52 +02:00
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struct ifaddrmsg *ifa;
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int r;
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2013-12-06 15:13:34 +01:00
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assert_return(message_type_is_addr(nlmsg_type), -EINVAL);
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2013-10-21 20:12:52 +02:00
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assert_return(index > 0, -EINVAL);
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2014-01-21 15:55:57 +01:00
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assert_return(family == AF_INET || family == AF_INET6, -EINVAL);
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2013-10-21 20:12:52 +02:00
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assert_return(ret, -EINVAL);
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r = message_new(ret, NLMSG_SPACE(sizeof(struct ifaddrmsg)));
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if (r < 0)
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return r;
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(*ret)->hdr->nlmsg_len = NLMSG_LENGTH(sizeof(struct ifaddrmsg));
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(*ret)->hdr->nlmsg_type = nlmsg_type;
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2013-10-29 15:03:27 +01:00
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ifa = NLMSG_DATA((*ret)->hdr);
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2013-10-21 20:12:52 +02:00
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ifa->ifa_index = index;
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2014-01-21 15:55:57 +01:00
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ifa->ifa_family = family;
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if (family == AF_INET)
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ifa->ifa_prefixlen = 32;
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else if (family == AF_INET6)
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ifa->ifa_prefixlen = 128;
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2013-10-21 20:12:52 +02:00
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2013-12-31 18:56:59 +01:00
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UPDATE_RTA(*ret, IFA_RTA(ifa));
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2013-12-06 17:19:55 +01:00
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2013-10-21 20:12:52 +02:00
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return 0;
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}
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sd_rtnl_message *sd_rtnl_message_ref(sd_rtnl_message *m) {
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if (m)
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assert_se(REFCNT_INC(m->n_ref) >= 2);
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return m;
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}
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sd_rtnl_message *sd_rtnl_message_unref(sd_rtnl_message *m) {
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if (m && REFCNT_DEC(m->n_ref) <= 0) {
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free(m->hdr);
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free(m);
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}
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return NULL;
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}
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2013-10-29 15:03:27 +01:00
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int sd_rtnl_message_get_type(sd_rtnl_message *m, uint16_t *type) {
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2013-10-21 20:12:52 +02:00
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assert_return(m, -EINVAL);
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assert_return(type, -EINVAL);
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*type = m->hdr->nlmsg_type;
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|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2013-11-21 20:44:29 +01:00
|
|
|
int sd_rtnl_message_link_get_ifindex(sd_rtnl_message *m, int *ifindex) {
|
|
|
|
struct ifinfomsg *ifi;
|
|
|
|
|
|
|
|
assert_return(m, -EINVAL);
|
2013-12-06 15:13:34 +01:00
|
|
|
assert_return(m->hdr, -EINVAL);
|
|
|
|
assert_return(message_type_is_link(m->hdr->nlmsg_type), -EINVAL);
|
2013-11-21 20:44:29 +01:00
|
|
|
assert_return(ifindex, -EINVAL);
|
|
|
|
|
|
|
|
ifi = NLMSG_DATA(m->hdr);
|
|
|
|
|
|
|
|
*ifindex = ifi->ifi_index;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2013-12-04 00:34:58 +01:00
|
|
|
int sd_rtnl_message_link_get_flags(sd_rtnl_message *m, unsigned *flags) {
|
|
|
|
struct ifinfomsg *ifi;
|
|
|
|
|
|
|
|
assert_return(m, -EINVAL);
|
2013-12-06 15:13:34 +01:00
|
|
|
assert_return(m->hdr, -EINVAL);
|
|
|
|
assert_return(message_type_is_link(m->hdr->nlmsg_type), -EINVAL);
|
2013-12-04 00:34:58 +01:00
|
|
|
assert_return(flags, -EINVAL);
|
|
|
|
|
|
|
|
ifi = NLMSG_DATA(m->hdr);
|
|
|
|
|
|
|
|
*flags = ifi->ifi_flags;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2013-12-31 18:56:59 +01:00
|
|
|
/* If successful the updated message will be correctly aligned, if
|
|
|
|
unsuccessful the old message is untouched. */
|
2013-10-21 20:12:52 +02:00
|
|
|
static int add_rtattr(sd_rtnl_message *m, unsigned short type, const void *data, size_t data_length) {
|
2013-10-29 15:03:27 +01:00
|
|
|
uint32_t rta_length, message_length;
|
2013-10-21 20:12:52 +02:00
|
|
|
struct nlmsghdr *new_hdr;
|
|
|
|
struct rtattr *rta;
|
2013-11-08 12:14:28 +01:00
|
|
|
char *padding;
|
2013-10-21 20:12:52 +02:00
|
|
|
|
2013-11-21 20:44:29 +01:00
|
|
|
assert(m);
|
|
|
|
assert(m->hdr);
|
|
|
|
assert(NLMSG_ALIGN(m->hdr->nlmsg_len) == m->hdr->nlmsg_len);
|
|
|
|
assert(!data || data_length > 0);
|
2013-10-21 20:12:52 +02:00
|
|
|
|
2013-11-08 12:14:28 +01:00
|
|
|
/* get the size of the new rta attribute (with padding at the end) */
|
2013-10-21 20:12:52 +02:00
|
|
|
rta_length = RTA_LENGTH(data_length);
|
2013-12-31 18:56:59 +01:00
|
|
|
|
|
|
|
/* get the new message size (with padding at the end) */
|
2013-10-21 20:12:52 +02:00
|
|
|
message_length = m->hdr->nlmsg_len + RTA_ALIGN(rta_length);
|
|
|
|
|
|
|
|
/* realloc to fit the new attribute */
|
|
|
|
new_hdr = realloc(m->hdr, message_length);
|
|
|
|
if (!new_hdr)
|
|
|
|
return -ENOMEM;
|
|
|
|
m->hdr = new_hdr;
|
|
|
|
|
|
|
|
/* get pointer to the attribute we are about to add */
|
|
|
|
rta = (struct rtattr *) ((uint8_t *) m->hdr + m->hdr->nlmsg_len);
|
|
|
|
|
2013-12-31 18:56:59 +01:00
|
|
|
/* if we are inside a container, extend it */
|
|
|
|
if (CURRENT_CONTAINER(m))
|
|
|
|
CURRENT_CONTAINER(m)->rta_len += message_length - m->hdr->nlmsg_len;
|
2013-11-21 20:44:29 +01:00
|
|
|
|
2013-10-21 20:12:52 +02:00
|
|
|
/* fill in the attribute */
|
|
|
|
rta->rta_type = type;
|
|
|
|
rta->rta_len = rta_length;
|
2013-11-21 20:44:29 +01:00
|
|
|
if (!data) {
|
2013-12-31 18:56:59 +01:00
|
|
|
/* this is the start of a new container */
|
|
|
|
m->container_offset = m->hdr->nlmsg_len;
|
2013-11-21 20:44:29 +01:00
|
|
|
} else {
|
|
|
|
/* we don't deal with the case where the user lies about the type
|
|
|
|
* and gives us too little data (so don't do that)
|
|
|
|
*/
|
|
|
|
padding = mempcpy(RTA_DATA(rta), data, data_length);
|
|
|
|
/* make sure also the padding at the end of the message is initialized */
|
2013-12-31 18:56:59 +01:00
|
|
|
memzero(padding,
|
|
|
|
(uint8_t *) m->hdr + message_length - (uint8_t *) padding);
|
2013-11-21 20:44:29 +01:00
|
|
|
}
|
2013-10-21 20:12:52 +02:00
|
|
|
|
2013-12-31 18:56:59 +01:00
|
|
|
/* update message size */
|
|
|
|
m->hdr->nlmsg_len = message_length;
|
|
|
|
|
2013-10-21 20:12:52 +02:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2013-12-15 14:00:20 +01:00
|
|
|
int sd_rtnl_message_append_string(sd_rtnl_message *m, unsigned short type, const char *data) {
|
2013-10-29 15:03:27 +01:00
|
|
|
uint16_t rtm_type;
|
2013-12-15 14:00:20 +01:00
|
|
|
int r;
|
2013-10-21 20:12:52 +02:00
|
|
|
|
|
|
|
assert_return(m, -EINVAL);
|
|
|
|
assert_return(data, -EINVAL);
|
|
|
|
|
2013-12-15 14:00:20 +01:00
|
|
|
r = sd_rtnl_message_get_type(m, &rtm_type);
|
|
|
|
if (r < 0)
|
|
|
|
return r;
|
2013-10-21 20:12:52 +02:00
|
|
|
|
2013-12-15 14:00:20 +01:00
|
|
|
/* check that the type is correct */
|
|
|
|
switch (rtm_type) {
|
|
|
|
case RTM_NEWLINK:
|
|
|
|
case RTM_SETLINK:
|
|
|
|
case RTM_GETLINK:
|
|
|
|
case RTM_DELLINK:
|
2013-12-31 18:56:59 +01:00
|
|
|
if (CURRENT_CONTAINER(m)) {
|
|
|
|
if (CURRENT_CONTAINER(m)->rta_type != IFLA_LINKINFO ||
|
2013-12-15 14:00:20 +01:00
|
|
|
type != IFLA_INFO_KIND)
|
|
|
|
return -ENOTSUP;
|
|
|
|
} else {
|
|
|
|
switch (type) {
|
|
|
|
case IFLA_IFNAME:
|
|
|
|
case IFLA_IFALIAS:
|
|
|
|
case IFLA_QDISC:
|
|
|
|
break;
|
2013-11-21 20:44:29 +01:00
|
|
|
default:
|
|
|
|
return -ENOTSUP;
|
|
|
|
}
|
2013-12-15 14:00:20 +01:00
|
|
|
}
|
|
|
|
break;
|
|
|
|
case RTM_NEWADDR:
|
|
|
|
case RTM_GETADDR:
|
|
|
|
case RTM_DELADDR:
|
|
|
|
if (type != IFA_LABEL)
|
2013-11-21 20:44:29 +01:00
|
|
|
return -ENOTSUP;
|
2013-12-15 14:00:20 +01:00
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return -ENOTSUP;
|
2013-11-21 20:44:29 +01:00
|
|
|
}
|
|
|
|
|
2013-12-15 14:00:20 +01:00
|
|
|
r = add_rtattr(m, type, data, strlen(data) + 1);
|
|
|
|
if (r < 0)
|
|
|
|
return r;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2014-01-22 14:16:01 +01:00
|
|
|
int sd_rtnl_message_append_u16(sd_rtnl_message *m, unsigned short type, uint16_t data) {
|
|
|
|
uint16_t rtm_type;
|
|
|
|
int r;
|
|
|
|
|
|
|
|
assert_return(m, -EINVAL);
|
|
|
|
|
|
|
|
r = sd_rtnl_message_get_type(m, &rtm_type);
|
|
|
|
if (r < 0)
|
|
|
|
return r;
|
|
|
|
|
|
|
|
/* check that the type is correct */
|
|
|
|
switch (rtm_type) {
|
|
|
|
case RTM_NEWLINK:
|
|
|
|
case RTM_SETLINK:
|
|
|
|
case RTM_GETLINK:
|
|
|
|
case RTM_DELLINK:
|
|
|
|
switch (type) {
|
|
|
|
case IFLA_VLAN_ID:
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return -ENOTSUP;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return -ENOTSUP;
|
|
|
|
}
|
|
|
|
|
|
|
|
r = add_rtattr(m, type, &data, sizeof(uint16_t));
|
|
|
|
if (r < 0)
|
|
|
|
return r;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2013-12-15 14:00:20 +01:00
|
|
|
int sd_rtnl_message_append_u32(sd_rtnl_message *m, unsigned short type, uint32_t data) {
|
|
|
|
uint16_t rtm_type;
|
|
|
|
int r;
|
|
|
|
|
|
|
|
assert_return(m, -EINVAL);
|
|
|
|
|
|
|
|
r = sd_rtnl_message_get_type(m, &rtm_type);
|
|
|
|
if (r < 0)
|
|
|
|
return r;
|
|
|
|
|
|
|
|
/* check that the type is correct */
|
2013-10-21 20:12:52 +02:00
|
|
|
switch (rtm_type) {
|
|
|
|
case RTM_NEWLINK:
|
2013-11-25 01:33:04 +01:00
|
|
|
case RTM_SETLINK:
|
2013-10-21 20:12:52 +02:00
|
|
|
case RTM_GETLINK:
|
2013-12-15 14:00:20 +01:00
|
|
|
case RTM_DELLINK:
|
2013-10-21 20:12:52 +02:00
|
|
|
switch (type) {
|
2013-11-24 22:08:30 +01:00
|
|
|
case IFLA_MASTER:
|
2013-10-21 20:12:52 +02:00
|
|
|
case IFLA_MTU:
|
|
|
|
case IFLA_LINK:
|
2013-12-15 14:00:20 +01:00
|
|
|
break;
|
2013-10-21 20:12:52 +02:00
|
|
|
default:
|
|
|
|
return -ENOTSUP;
|
|
|
|
}
|
2013-12-15 14:00:20 +01:00
|
|
|
break;
|
|
|
|
case RTM_NEWROUTE:
|
|
|
|
case RTM_GETROUTE:
|
|
|
|
case RTM_DELROUTE:
|
|
|
|
switch (type) {
|
|
|
|
case RTA_TABLE:
|
|
|
|
case RTA_PRIORITY:
|
|
|
|
case RTA_IIF:
|
|
|
|
case RTA_OIF:
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return -ENOTSUP;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return -ENOTSUP;
|
|
|
|
}
|
|
|
|
|
2013-12-19 21:28:50 +01:00
|
|
|
r = add_rtattr(m, type, &data, sizeof(uint32_t));
|
2013-12-15 14:00:20 +01:00
|
|
|
if (r < 0)
|
|
|
|
return r;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
int sd_rtnl_message_append_in_addr(sd_rtnl_message *m, unsigned short type, const struct in_addr *data) {
|
|
|
|
struct ifaddrmsg *ifa;
|
|
|
|
struct rtmsg *rtm;
|
|
|
|
uint16_t rtm_type;
|
|
|
|
int r;
|
|
|
|
|
|
|
|
assert_return(m, -EINVAL);
|
|
|
|
assert_return(data, -EINVAL);
|
|
|
|
|
|
|
|
r = sd_rtnl_message_get_type(m, &rtm_type);
|
|
|
|
if (r < 0)
|
|
|
|
return r;
|
|
|
|
|
|
|
|
/* check that the type is correct */
|
|
|
|
switch (rtm_type) {
|
2013-10-21 20:12:52 +02:00
|
|
|
case RTM_NEWADDR:
|
|
|
|
case RTM_GETADDR:
|
2013-12-15 14:00:20 +01:00
|
|
|
case RTM_DELADDR:
|
2013-10-21 20:12:52 +02:00
|
|
|
switch (type) {
|
|
|
|
case IFA_ADDRESS:
|
|
|
|
case IFA_LOCAL:
|
|
|
|
case IFA_BROADCAST:
|
|
|
|
case IFA_ANYCAST:
|
|
|
|
ifa = NLMSG_DATA(m->hdr);
|
2013-12-15 14:00:20 +01:00
|
|
|
|
|
|
|
if (ifa->ifa_family != AF_INET)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
break;
|
2013-10-21 20:12:52 +02:00
|
|
|
default:
|
|
|
|
return -ENOTSUP;
|
|
|
|
}
|
2013-12-15 14:00:20 +01:00
|
|
|
break;
|
2013-11-04 02:42:23 +01:00
|
|
|
case RTM_NEWROUTE:
|
2013-12-15 14:00:20 +01:00
|
|
|
case RTM_GETROUTE:
|
2013-11-04 02:42:23 +01:00
|
|
|
case RTM_DELROUTE:
|
2013-12-15 14:00:20 +01:00
|
|
|
switch (type) {
|
|
|
|
case RTA_DST:
|
|
|
|
case RTA_SRC:
|
|
|
|
case RTA_GATEWAY:
|
|
|
|
rtm = NLMSG_DATA(m->hdr);
|
|
|
|
|
|
|
|
if (rtm->rtm_family != AF_INET)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return -ENOTSUP;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return -ENOTSUP;
|
|
|
|
}
|
|
|
|
|
2013-12-19 21:28:50 +01:00
|
|
|
r = add_rtattr(m, type, data, sizeof(struct in_addr));
|
2013-12-15 14:00:20 +01:00
|
|
|
if (r < 0)
|
|
|
|
return r;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
int sd_rtnl_message_append_in6_addr(sd_rtnl_message *m, unsigned short type, const struct in6_addr *data) {
|
|
|
|
struct ifaddrmsg *ifa;
|
|
|
|
struct rtmsg *rtm;
|
|
|
|
uint16_t rtm_type;
|
|
|
|
int r;
|
|
|
|
|
|
|
|
assert_return(m, -EINVAL);
|
|
|
|
assert_return(data, -EINVAL);
|
|
|
|
|
|
|
|
r = sd_rtnl_message_get_type(m, &rtm_type);
|
|
|
|
if (r < 0)
|
|
|
|
return r;
|
|
|
|
|
|
|
|
/* check that the type is correct */
|
|
|
|
switch (rtm_type) {
|
|
|
|
case RTM_NEWADDR:
|
|
|
|
case RTM_GETADDR:
|
|
|
|
case RTM_DELADDR:
|
|
|
|
switch (type) {
|
|
|
|
case IFA_ADDRESS:
|
|
|
|
case IFA_LOCAL:
|
|
|
|
case IFA_BROADCAST:
|
|
|
|
case IFA_ANYCAST:
|
|
|
|
ifa = NLMSG_DATA(m->hdr);
|
|
|
|
|
|
|
|
if (ifa->ifa_family != AF_INET6)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return -ENOTSUP;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case RTM_NEWROUTE:
|
2013-11-04 02:42:23 +01:00
|
|
|
case RTM_GETROUTE:
|
2013-12-15 14:00:20 +01:00
|
|
|
case RTM_DELROUTE:
|
2013-11-04 02:42:23 +01:00
|
|
|
switch (type) {
|
|
|
|
case RTA_DST:
|
|
|
|
case RTA_SRC:
|
|
|
|
case RTA_GATEWAY:
|
|
|
|
rtm = NLMSG_DATA(m->hdr);
|
2013-12-15 14:00:20 +01:00
|
|
|
|
|
|
|
if (rtm->rtm_family != AF_INET6)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return -ENOTSUP;
|
|
|
|
}
|
|
|
|
default:
|
|
|
|
return -ENOTSUP;
|
|
|
|
}
|
|
|
|
|
2013-12-19 21:28:50 +01:00
|
|
|
r = add_rtattr(m, type, data, sizeof(struct in6_addr));
|
2013-12-15 14:00:20 +01:00
|
|
|
if (r < 0)
|
|
|
|
return r;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
int sd_rtnl_message_append_ether_addr(sd_rtnl_message *m, unsigned short type, const struct ether_addr *data) {
|
|
|
|
uint16_t rtm_type;
|
|
|
|
int r;
|
|
|
|
|
|
|
|
assert_return(m, -EINVAL);
|
|
|
|
assert_return(data, -EINVAL);
|
|
|
|
|
|
|
|
sd_rtnl_message_get_type(m, &rtm_type);
|
|
|
|
|
|
|
|
switch (rtm_type) {
|
|
|
|
case RTM_NEWLINK:
|
|
|
|
case RTM_SETLINK:
|
|
|
|
case RTM_DELLINK:
|
|
|
|
case RTM_GETLINK:
|
|
|
|
switch (type) {
|
|
|
|
case IFLA_ADDRESS:
|
|
|
|
case IFLA_BROADCAST:
|
|
|
|
break;
|
2013-11-04 02:42:23 +01:00
|
|
|
default:
|
|
|
|
return -ENOTSUP;
|
|
|
|
}
|
2013-12-15 14:00:20 +01:00
|
|
|
break;
|
2013-10-21 20:12:52 +02:00
|
|
|
default:
|
|
|
|
return -ENOTSUP;
|
|
|
|
}
|
2013-12-15 14:00:20 +01:00
|
|
|
|
2013-12-17 06:13:57 +01:00
|
|
|
r = add_rtattr(m, type, data, ETH_ALEN);
|
2013-12-15 14:00:20 +01:00
|
|
|
if (r < 0)
|
|
|
|
return r;
|
|
|
|
|
|
|
|
return 0;
|
2013-10-21 20:12:52 +02:00
|
|
|
}
|
|
|
|
|
2013-11-21 20:44:29 +01:00
|
|
|
int sd_rtnl_message_open_container(sd_rtnl_message *m, unsigned short type) {
|
|
|
|
uint16_t rtm_type;
|
|
|
|
|
2013-10-21 20:12:52 +02:00
|
|
|
assert_return(m, -EINVAL);
|
2013-12-31 18:56:59 +01:00
|
|
|
assert_return(!CURRENT_CONTAINER(m), -EINVAL);
|
2013-11-21 20:44:29 +01:00
|
|
|
|
|
|
|
sd_rtnl_message_get_type(m, &rtm_type);
|
|
|
|
|
2013-12-06 15:13:34 +01:00
|
|
|
if (message_type_is_link(rtm_type)) {
|
|
|
|
if (type == IFLA_LINKINFO)
|
|
|
|
return add_rtattr(m, type, NULL, 0);
|
|
|
|
else
|
2013-11-21 20:44:29 +01:00
|
|
|
return -ENOTSUP;
|
2013-12-06 15:13:34 +01:00
|
|
|
} else
|
|
|
|
return -ENOTSUP;
|
2013-11-21 20:44:29 +01:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
int sd_rtnl_message_close_container(sd_rtnl_message *m) {
|
|
|
|
assert_return(m, -EINVAL);
|
2013-12-31 18:56:59 +01:00
|
|
|
assert_return(CURRENT_CONTAINER(m), -EINVAL);
|
2013-11-21 20:44:29 +01:00
|
|
|
|
2013-12-31 18:56:59 +01:00
|
|
|
m->container_offset = 0;
|
2013-11-21 20:44:29 +01:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2013-12-06 17:19:55 +01:00
|
|
|
int sd_rtnl_message_read(sd_rtnl_message *m, unsigned short *type, void **data) {
|
|
|
|
size_t remaining_size;
|
2013-11-21 20:44:29 +01:00
|
|
|
uint16_t rtm_type;
|
|
|
|
int r;
|
|
|
|
|
|
|
|
assert(m);
|
2013-12-31 18:56:59 +01:00
|
|
|
assert(m->next_rta_offset);
|
2013-11-21 20:44:29 +01:00
|
|
|
assert(type);
|
|
|
|
assert(data);
|
2013-10-21 20:12:52 +02:00
|
|
|
|
2013-12-31 18:56:59 +01:00
|
|
|
remaining_size = m->hdr->nlmsg_len - m->next_rta_offset;
|
2013-12-06 17:19:55 +01:00
|
|
|
|
2013-12-31 18:56:59 +01:00
|
|
|
if (!RTA_OK(NEXT_RTA(m), remaining_size))
|
2013-10-21 20:12:52 +02:00
|
|
|
return 0;
|
|
|
|
|
2013-11-21 20:44:29 +01:00
|
|
|
/* make sure we don't try to read a container
|
|
|
|
* TODO: add support for entering containers for reading */
|
|
|
|
r = sd_rtnl_message_get_type(m, &rtm_type);
|
|
|
|
if (r < 0)
|
|
|
|
return r;
|
|
|
|
|
2013-12-06 17:19:55 +01:00
|
|
|
if (message_type_is_link(rtm_type) &&
|
2013-12-31 18:56:59 +01:00
|
|
|
NEXT_RTA(m)->rta_type == IFLA_LINKINFO)
|
2013-12-06 17:19:55 +01:00
|
|
|
return -EINVAL;
|
2013-11-21 20:44:29 +01:00
|
|
|
|
2013-12-31 18:56:59 +01:00
|
|
|
*data = RTA_DATA(NEXT_RTA(m));
|
|
|
|
*type = NEXT_RTA(m)->rta_type;
|
2013-10-21 20:12:52 +02:00
|
|
|
|
2013-12-31 18:56:59 +01:00
|
|
|
UPDATE_RTA(m, RTA_NEXT(NEXT_RTA(m), remaining_size));
|
2013-10-21 20:12:52 +02:00
|
|
|
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
2013-11-12 22:37:51 +01:00
|
|
|
uint32_t message_get_serial(sd_rtnl_message *m) {
|
2013-10-21 20:12:52 +02:00
|
|
|
assert(m);
|
2013-12-06 15:13:34 +01:00
|
|
|
assert(m->hdr);
|
2013-10-21 20:12:52 +02:00
|
|
|
|
|
|
|
return m->hdr->nlmsg_seq;
|
|
|
|
}
|
|
|
|
|
2013-11-13 23:18:20 +01:00
|
|
|
int sd_rtnl_message_get_errno(sd_rtnl_message *m) {
|
2013-10-21 20:12:52 +02:00
|
|
|
struct nlmsgerr *err;
|
|
|
|
|
2013-11-13 23:18:20 +01:00
|
|
|
assert_return(m, -EINVAL);
|
2013-12-06 15:13:34 +01:00
|
|
|
assert_return(m->hdr, -EINVAL);
|
2013-10-21 20:12:52 +02:00
|
|
|
|
|
|
|
if (m->hdr->nlmsg_type != NLMSG_ERROR)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
err = NLMSG_DATA(m->hdr);
|
|
|
|
|
|
|
|
return err->error;
|
|
|
|
}
|
|
|
|
|
|
|
|
int message_seal(sd_rtnl *nl, sd_rtnl_message *m) {
|
2013-12-06 15:13:34 +01:00
|
|
|
assert(nl);
|
|
|
|
assert(m);
|
|
|
|
assert(m->hdr);
|
|
|
|
|
2013-10-21 20:12:52 +02:00
|
|
|
if (m->sealed)
|
|
|
|
return -EPERM;
|
|
|
|
|
|
|
|
m->hdr->nlmsg_seq = nl->serial++;
|
|
|
|
m->sealed = true;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int message_receive_need(sd_rtnl *rtnl, size_t *need) {
|
2013-12-06 15:13:34 +01:00
|
|
|
assert(rtnl);
|
|
|
|
assert(need);
|
2013-10-21 20:12:52 +02:00
|
|
|
|
|
|
|
/* ioctl(rtnl->fd, FIONREAD, &need)
|
2013-10-29 15:03:27 +01:00
|
|
|
Does not appear to work on netlink sockets. libnl uses
|
|
|
|
MSG_PEEK instead. I don't know if that is worth the
|
|
|
|
extra roundtrip.
|
|
|
|
|
|
|
|
For now we simply use the maximum message size the kernel
|
|
|
|
may use (NLMSG_GOODSIZE), and then realloc to the actual
|
|
|
|
size after reading the message (hence avoiding huge memory
|
|
|
|
usage in case many small messages are kept around) */
|
|
|
|
*need = page_size();
|
2013-10-21 20:12:52 +02:00
|
|
|
if (*need > 8192UL)
|
|
|
|
*need = 8192UL;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* returns the number of bytes sent, or a negative error code */
|
|
|
|
int socket_write_message(sd_rtnl *nl, sd_rtnl_message *m) {
|
2013-10-29 21:20:25 +01:00
|
|
|
union {
|
|
|
|
struct sockaddr sa;
|
|
|
|
struct sockaddr_nl nl;
|
|
|
|
} addr = {
|
|
|
|
.nl.nl_family = AF_NETLINK,
|
|
|
|
};
|
2013-10-21 20:12:52 +02:00
|
|
|
ssize_t k;
|
|
|
|
|
2013-12-06 15:13:34 +01:00
|
|
|
assert(nl);
|
|
|
|
assert(m);
|
|
|
|
assert(m->hdr);
|
2013-10-21 20:12:52 +02:00
|
|
|
|
|
|
|
k = sendto(nl->fd, m->hdr, m->hdr->nlmsg_len,
|
2013-10-29 21:20:25 +01:00
|
|
|
0, &addr.sa, sizeof(addr));
|
2013-10-21 20:12:52 +02:00
|
|
|
if (k < 0)
|
|
|
|
return (errno == EAGAIN) ? 0 : -errno;
|
|
|
|
|
|
|
|
return k;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* On success, the number of bytes received is returned and *ret points to the received message
|
|
|
|
* which has a valid header and the correct size.
|
|
|
|
* If nothing useful was received 0 is returned.
|
|
|
|
* On failure, a negative error code is returned.
|
2013-10-29 15:03:27 +01:00
|
|
|
*/
|
2013-10-21 20:12:52 +02:00
|
|
|
int socket_read_message(sd_rtnl *nl, sd_rtnl_message **ret) {
|
|
|
|
sd_rtnl_message *m;
|
2013-10-29 21:20:25 +01:00
|
|
|
union {
|
|
|
|
struct sockaddr sa;
|
|
|
|
struct sockaddr_nl nl;
|
|
|
|
} addr;
|
|
|
|
socklen_t addr_len;
|
2013-10-21 20:12:52 +02:00
|
|
|
int r;
|
|
|
|
ssize_t k;
|
|
|
|
size_t need;
|
|
|
|
|
2013-12-06 15:13:34 +01:00
|
|
|
assert(nl);
|
|
|
|
assert(ret);
|
2013-10-21 20:12:52 +02:00
|
|
|
|
|
|
|
r = message_receive_need(nl, &need);
|
|
|
|
if (r < 0)
|
|
|
|
return r;
|
|
|
|
|
|
|
|
r = message_new(&m, need);
|
|
|
|
if (r < 0)
|
|
|
|
return r;
|
|
|
|
|
2013-10-29 21:20:25 +01:00
|
|
|
addr_len = sizeof(addr);
|
|
|
|
|
2013-10-21 20:12:52 +02:00
|
|
|
k = recvfrom(nl->fd, m->hdr, need,
|
2013-10-29 21:20:25 +01:00
|
|
|
0, &addr.sa, &addr_len);
|
2013-10-21 20:12:52 +02:00
|
|
|
if (k < 0)
|
2013-10-29 17:52:25 +01:00
|
|
|
k = (errno == EAGAIN) ? 0 : -errno; /* no data */
|
2013-10-21 20:12:52 +02:00
|
|
|
else if (k == 0)
|
|
|
|
k = -ECONNRESET; /* connection was closed by the kernel */
|
2013-10-29 21:20:25 +01:00
|
|
|
else if (addr_len != sizeof(addr.nl) ||
|
|
|
|
addr.nl.nl_family != AF_NETLINK)
|
2013-10-21 20:12:52 +02:00
|
|
|
k = -EIO; /* not a netlink message */
|
2013-10-29 21:20:25 +01:00
|
|
|
else if (addr.nl.nl_pid != 0)
|
2013-10-21 20:12:52 +02:00
|
|
|
k = 0; /* not from the kernel */
|
|
|
|
else if ((size_t) k < sizeof(struct nlmsghdr) ||
|
2013-10-29 15:03:27 +01:00
|
|
|
(size_t) k < m->hdr->nlmsg_len)
|
2013-10-21 20:12:52 +02:00
|
|
|
k = -EIO; /* too small (we do accept too big though) */
|
2013-12-03 23:55:45 +01:00
|
|
|
else if (m->hdr->nlmsg_pid && m->hdr->nlmsg_pid != nl->sockaddr.nl.nl_pid)
|
|
|
|
k = 0; /* not broadcast and not for us */
|
2013-10-21 20:12:52 +02:00
|
|
|
|
|
|
|
if (k > 0)
|
|
|
|
switch (m->hdr->nlmsg_type) {
|
2013-12-06 17:19:55 +01:00
|
|
|
struct ifinfomsg *ifi;
|
|
|
|
struct ifaddrmsg *ifa;
|
|
|
|
struct rtmsg *rtm;
|
|
|
|
|
2013-10-21 20:12:52 +02:00
|
|
|
/* check that the size matches the message type */
|
|
|
|
case NLMSG_ERROR:
|
|
|
|
if (m->hdr->nlmsg_len < NLMSG_LENGTH(sizeof(struct nlmsgerr)))
|
|
|
|
k = -EIO;
|
2013-11-04 02:42:23 +01:00
|
|
|
break;
|
2013-10-21 20:12:52 +02:00
|
|
|
case RTM_NEWLINK:
|
2013-11-25 01:33:04 +01:00
|
|
|
case RTM_SETLINK:
|
2013-10-21 20:12:52 +02:00
|
|
|
case RTM_DELLINK:
|
|
|
|
case RTM_GETLINK:
|
|
|
|
if (m->hdr->nlmsg_len < NLMSG_LENGTH(sizeof(struct ifinfomsg)))
|
|
|
|
k = -EIO;
|
2013-12-06 17:19:55 +01:00
|
|
|
else {
|
|
|
|
ifi = NLMSG_DATA(m->hdr);
|
2013-12-31 18:56:59 +01:00
|
|
|
UPDATE_RTA(m, IFLA_RTA(ifi));
|
2013-12-06 17:19:55 +01:00
|
|
|
}
|
2013-11-04 02:42:23 +01:00
|
|
|
break;
|
2013-10-21 20:12:52 +02:00
|
|
|
case RTM_NEWADDR:
|
|
|
|
case RTM_DELADDR:
|
|
|
|
case RTM_GETADDR:
|
|
|
|
if (m->hdr->nlmsg_len < NLMSG_LENGTH(sizeof(struct ifaddrmsg)))
|
|
|
|
k = -EIO;
|
2013-12-06 17:19:55 +01:00
|
|
|
else {
|
|
|
|
ifa = NLMSG_DATA(m->hdr);
|
2013-12-31 18:56:59 +01:00
|
|
|
UPDATE_RTA(m, IFA_RTA(ifa));
|
2013-12-06 17:19:55 +01:00
|
|
|
}
|
2013-11-04 02:42:23 +01:00
|
|
|
break;
|
2013-12-06 16:26:17 +01:00
|
|
|
case RTM_NEWROUTE:
|
|
|
|
case RTM_DELROUTE:
|
|
|
|
case RTM_GETROUTE:
|
|
|
|
if (m->hdr->nlmsg_len < NLMSG_LENGTH(sizeof(struct rtmsg)))
|
|
|
|
k = -EIO;
|
2013-12-06 17:19:55 +01:00
|
|
|
else {
|
|
|
|
rtm = NLMSG_DATA(m->hdr);
|
2013-12-31 18:56:59 +01:00
|
|
|
UPDATE_RTA(m, RTM_RTA(rtm));
|
2013-12-06 17:19:55 +01:00
|
|
|
}
|
2013-12-06 16:26:17 +01:00
|
|
|
break;
|
2013-10-21 20:12:52 +02:00
|
|
|
case NLMSG_NOOP:
|
|
|
|
k = 0;
|
2013-11-04 02:42:23 +01:00
|
|
|
break;
|
2013-10-21 20:12:52 +02:00
|
|
|
default:
|
|
|
|
k = 0; /* ignoring message of unknown type */
|
|
|
|
}
|
|
|
|
|
|
|
|
if (k <= 0)
|
|
|
|
sd_rtnl_message_unref(m);
|
|
|
|
else {
|
|
|
|
/* we probably allocated way too much memory, give it back */
|
|
|
|
m->hdr = realloc(m->hdr, m->hdr->nlmsg_len);
|
|
|
|
*ret = m;
|
|
|
|
}
|
|
|
|
|
|
|
|
return k;
|
|
|
|
}
|
2013-12-06 17:19:55 +01:00
|
|
|
|
|
|
|
int sd_rtnl_message_rewind(sd_rtnl_message *m) {
|
|
|
|
struct ifinfomsg *ifi;
|
|
|
|
struct ifaddrmsg *ifa;
|
|
|
|
struct rtmsg *rtm;
|
|
|
|
|
|
|
|
assert_return(m, -EINVAL);
|
|
|
|
assert_return(m->hdr, -EINVAL);
|
|
|
|
|
|
|
|
switch(m->hdr->nlmsg_type) {
|
|
|
|
case RTM_NEWLINK:
|
|
|
|
case RTM_SETLINK:
|
|
|
|
case RTM_GETLINK:
|
|
|
|
case RTM_DELLINK:
|
|
|
|
ifi = NLMSG_DATA(m->hdr);
|
2013-12-31 18:56:59 +01:00
|
|
|
UPDATE_RTA(m, IFLA_RTA(ifi));
|
2013-12-06 17:19:55 +01:00
|
|
|
|
|
|
|
break;
|
|
|
|
case RTM_NEWADDR:
|
|
|
|
case RTM_GETADDR:
|
|
|
|
case RTM_DELADDR:
|
|
|
|
ifa = NLMSG_DATA(m->hdr);
|
2013-12-31 18:56:59 +01:00
|
|
|
UPDATE_RTA(m, IFA_RTA(ifa));
|
2013-12-06 17:19:55 +01:00
|
|
|
|
|
|
|
break;
|
|
|
|
case RTM_NEWROUTE:
|
|
|
|
case RTM_GETROUTE:
|
|
|
|
case RTM_DELROUTE:
|
|
|
|
rtm = NLMSG_DATA(m->hdr);
|
2013-12-31 18:56:59 +01:00
|
|
|
UPDATE_RTA(m, RTM_RTA(rtm));
|
2013-12-06 17:19:55 +01:00
|
|
|
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return -ENOTSUP;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|