729 lines
24 KiB
C
729 lines
24 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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#include <netinet/in.h>
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#include <linux/l2tp.h>
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#include <linux/genetlink.h>
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#include "conf-parser.h"
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#include "hashmap.h"
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#include "l2tp-tunnel.h"
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#include "netlink-util.h"
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#include "networkd-address.h"
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#include "networkd-manager.h"
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#include "parse-util.h"
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#include "socket-util.h"
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#include "string-table.h"
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#include "string-util.h"
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#include "util.h"
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static const char* const l2tp_l2spec_type_table[_NETDEV_L2TP_L2SPECTYPE_MAX] = {
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[NETDEV_L2TP_L2SPECTYPE_NONE] = "none",
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[NETDEV_L2TP_L2SPECTYPE_DEFAULT] = "default",
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};
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DEFINE_PRIVATE_STRING_TABLE_LOOKUP_FROM_STRING(l2tp_l2spec_type, L2tpL2specType);
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static const char* const l2tp_encap_type_table[_NETDEV_L2TP_ENCAPTYPE_MAX] = {
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[NETDEV_L2TP_ENCAPTYPE_UDP] = "udp",
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[NETDEV_L2TP_ENCAPTYPE_IP] = "ip",
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};
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DEFINE_PRIVATE_STRING_TABLE_LOOKUP_FROM_STRING(l2tp_encap_type, L2tpEncapType);
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DEFINE_CONFIG_PARSE_ENUM(config_parse_l2tp_encap_type, l2tp_encap_type, L2tpEncapType, "Failed to parse L2TP Encapsulation Type");
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static const char* const l2tp_local_address_type_table[_NETDEV_L2TP_LOCAL_ADDRESS_MAX] = {
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[NETDEV_L2TP_LOCAL_ADDRESS_AUTO] = "auto",
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[NETDEV_L2TP_LOCAL_ADDRESS_STATIC] = "static",
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[NETDEV_L2TP_LOCAL_ADDRESS_DYNAMIC] = "dynamic",
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};
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DEFINE_PRIVATE_STRING_TABLE_LOOKUP_FROM_STRING(l2tp_local_address_type, L2tpLocalAddressType);
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static void l2tp_session_free(L2tpSession *s) {
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if (!s)
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return;
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if (s->tunnel && s->section)
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ordered_hashmap_remove(s->tunnel->sessions_by_section, s->section);
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network_config_section_free(s->section);
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free(s->name);
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free(s);
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}
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DEFINE_NETWORK_SECTION_FUNCTIONS(L2tpSession, l2tp_session_free);
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static int l2tp_session_new_static(L2tpTunnel *t, const char *filename, unsigned section_line, L2tpSession **ret) {
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_cleanup_(network_config_section_freep) NetworkConfigSection *n = NULL;
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_cleanup_(l2tp_session_freep) L2tpSession *s = NULL;
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int r;
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assert(t);
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assert(ret);
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assert(filename);
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assert(section_line > 0);
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r = network_config_section_new(filename, section_line, &n);
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if (r < 0)
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return r;
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s = ordered_hashmap_get(t->sessions_by_section, n);
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if (s) {
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*ret = TAKE_PTR(s);
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return 0;
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}
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s = new(L2tpSession, 1);
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if (!s)
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return -ENOMEM;
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*s = (L2tpSession) {
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.l2tp_l2spec_type = NETDEV_L2TP_L2SPECTYPE_DEFAULT,
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.tunnel = t,
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.section = TAKE_PTR(n),
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};
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r = ordered_hashmap_ensure_allocated(&t->sessions_by_section, &network_config_hash_ops);
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if (r < 0)
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return r;
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r = ordered_hashmap_put(t->sessions_by_section, s->section, s);
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if (r < 0)
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return r;
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*ret = TAKE_PTR(s);
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return 0;
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}
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static int netdev_l2tp_fill_message_tunnel(NetDev *netdev, union in_addr_union *local_address, sd_netlink_message **ret) {
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_cleanup_(sd_netlink_message_unrefp) sd_netlink_message *m = NULL;
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uint16_t encap_type;
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L2tpTunnel *t;
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int r;
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assert(netdev);
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assert(local_address);
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t = L2TP(netdev);
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assert(t);
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r = sd_genl_message_new(netdev->manager->genl, SD_GENL_L2TP, L2TP_CMD_TUNNEL_CREATE, &m);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Failed to create generic netlink message: %m");
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r = sd_netlink_message_append_u32(m, L2TP_ATTR_CONN_ID, t->tunnel_id);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_CONN_ID attribute: %m");
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r = sd_netlink_message_append_u32(m, L2TP_ATTR_PEER_CONN_ID, t->peer_tunnel_id);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_PEER_CONN_ID attribute: %m");
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r = sd_netlink_message_append_u8(m, L2TP_ATTR_PROTO_VERSION, 3);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_PROTO_VERSION attribute: %m");
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switch(t->l2tp_encap_type) {
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case NETDEV_L2TP_ENCAPTYPE_IP:
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encap_type = L2TP_ENCAPTYPE_IP;
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break;
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case NETDEV_L2TP_ENCAPTYPE_UDP:
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default:
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encap_type = L2TP_ENCAPTYPE_UDP;
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break;
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}
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r = sd_netlink_message_append_u16(m, L2TP_ATTR_ENCAP_TYPE, encap_type);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_ENCAP_TYPE attribute: %m");
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if (t->family == AF_INET) {
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r = sd_netlink_message_append_in_addr(m, L2TP_ATTR_IP_SADDR, &local_address->in);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_IP_SADDR attribute: %m");
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r = sd_netlink_message_append_in_addr(m, L2TP_ATTR_IP_DADDR, &t->remote.in);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_IP_DADDR attribute: %m");
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} else {
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r = sd_netlink_message_append_in6_addr(m, L2TP_ATTR_IP6_SADDR, &local_address->in6);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_IP6_SADDR attribute: %m");
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r = sd_netlink_message_append_in6_addr(m, L2TP_ATTR_IP6_DADDR, &t->remote.in6);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_IP6_DADDR attribute: %m");
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}
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if (encap_type == L2TP_ENCAPTYPE_UDP) {
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r = sd_netlink_message_append_u16(m, L2TP_ATTR_UDP_SPORT, t->l2tp_udp_sport);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_UDP_SPORT, attribute: %m");
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r = sd_netlink_message_append_u16(m, L2TP_ATTR_UDP_DPORT, t->l2tp_udp_dport);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_UDP_DPORT attribute: %m");
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if (t->udp_csum) {
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r = sd_netlink_message_append_u8(m, L2TP_ATTR_UDP_CSUM, t->udp_csum);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_UDP_CSUM attribute: %m");
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}
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if (t->udp6_csum_tx) {
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r = sd_netlink_message_append_flag(m, L2TP_ATTR_UDP_ZERO_CSUM6_TX);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_UDP_ZERO_CSUM6_TX attribute: %m");
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}
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if (t->udp6_csum_rx) {
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r = sd_netlink_message_append_flag(m, L2TP_ATTR_UDP_ZERO_CSUM6_RX);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_UDP_ZERO_CSUM6_RX attribute: %m");
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}
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}
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*ret = TAKE_PTR(m);
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return 0;
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}
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static int netdev_l2tp_fill_message_session(NetDev *netdev, L2tpSession *session, sd_netlink_message **ret) {
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_cleanup_(sd_netlink_message_unrefp) sd_netlink_message *m = NULL;
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uint16_t l2_spec_len;
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uint8_t l2_spec_type;
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int r;
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assert(netdev);
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assert(session);
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assert(session->tunnel);
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r = sd_genl_message_new(netdev->manager->genl, SD_GENL_L2TP, L2TP_CMD_SESSION_CREATE, &m);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Failed to create generic netlink message: %m");
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r = sd_netlink_message_append_u32(m, L2TP_ATTR_CONN_ID, session->tunnel->tunnel_id);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_CONN_ID attribute: %m");
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r = sd_netlink_message_append_u32(m, L2TP_ATTR_PEER_CONN_ID, session->tunnel->peer_tunnel_id);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_PEER_CONN_ID attribute: %m");
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r = sd_netlink_message_append_u32(m, L2TP_ATTR_SESSION_ID, session->session_id);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_SESSION_ID attribute: %m");
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r = sd_netlink_message_append_u32(m, L2TP_ATTR_PEER_SESSION_ID, session->peer_session_id);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_PEER_SESSION_ID attribute: %m");
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r = sd_netlink_message_append_u16(m, L2TP_ATTR_PW_TYPE, L2TP_PWTYPE_ETH);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_PW_TYPE attribute: %m");
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switch (session->l2tp_l2spec_type) {
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case NETDEV_L2TP_L2SPECTYPE_NONE:
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l2_spec_type = L2TP_L2SPECTYPE_NONE;
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l2_spec_len = 0;
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break;
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case NETDEV_L2TP_L2SPECTYPE_DEFAULT:
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default:
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l2_spec_type = L2TP_L2SPECTYPE_DEFAULT;
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l2_spec_len = 4;
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break;
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}
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r = sd_netlink_message_append_u8(m, L2TP_ATTR_L2SPEC_TYPE, l2_spec_type);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_L2SPEC_TYPE attribute: %m");
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r = sd_netlink_message_append_u8(m, L2TP_ATTR_L2SPEC_LEN, l2_spec_len);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_L2SPEC_LEN attribute: %m");
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r = sd_netlink_message_append_string(m, L2TP_ATTR_IFNAME, session->name);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_IFNAME attribute: %m");
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*ret = TAKE_PTR(m);
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return 0;
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}
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static int l2tp_acquire_local_address_one(L2tpTunnel *t, Address *a, union in_addr_union *ret) {
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if (a->family != t->family)
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return -EINVAL;
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if (in_addr_is_null(a->family, &a->in_addr_peer) <= 0)
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return -EINVAL;
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if (t->local_address_type == NETDEV_L2TP_LOCAL_ADDRESS_STATIC &&
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!FLAGS_SET(a->flags, IFA_F_PERMANENT))
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return -EINVAL;
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if (t->local_address_type == NETDEV_L2TP_LOCAL_ADDRESS_DYNAMIC &&
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FLAGS_SET(a->flags, IFA_F_PERMANENT))
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return -EINVAL;
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*ret = a->in_addr;
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return 0;
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}
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static int l2tp_acquire_local_address(L2tpTunnel *t, Link *link, union in_addr_union *ret) {
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Address *a;
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assert(t);
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assert(link);
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assert(ret);
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assert(IN_SET(t->family, AF_INET, AF_INET6));
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if (!in_addr_is_null(t->family, &t->local)) {
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/* local address is explicitly specified. */
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*ret = t->local;
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return 0;
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}
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SET_FOREACH(a, link->addresses)
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if (l2tp_acquire_local_address_one(t, a, ret) >= 0)
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return 1;
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SET_FOREACH(a, link->addresses_foreign)
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if (l2tp_acquire_local_address_one(t, a, ret) >= 0)
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return 1;
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return -ENODATA;
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}
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static void l2tp_session_destroy_callback(L2tpSession *session) {
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if (!session)
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return;
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netdev_unref(NETDEV(session->tunnel));
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}
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static int l2tp_create_session_handler(sd_netlink *rtnl, sd_netlink_message *m, L2tpSession *session) {
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NetDev *netdev;
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int r;
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assert(session);
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assert(session->tunnel);
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netdev = NETDEV(session->tunnel);
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r = sd_netlink_message_get_errno(m);
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if (r == -EEXIST)
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log_netdev_info(netdev, "L2TP session %s exists, using existing without changing its parameters",
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session->name);
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else if (r < 0) {
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log_netdev_warning_errno(netdev, r, "L2TP session %s could not be created: %m", session->name);
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return 1;
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}
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log_netdev_debug(netdev, "L2TP session %s created", session->name);
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return 1;
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}
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static int l2tp_create_session(NetDev *netdev, L2tpSession *session) {
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_cleanup_(sd_netlink_message_unrefp) sd_netlink_message *n = NULL;
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int r;
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r = netdev_l2tp_fill_message_session(netdev, session, &n);
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if (r < 0)
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return r;
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r = netlink_call_async(netdev->manager->genl, NULL, n, l2tp_create_session_handler,
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l2tp_session_destroy_callback, session);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Failed to create L2TP session %s: %m", session->name);
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netdev_ref(netdev);
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return 0;
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}
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static int l2tp_create_tunnel_handler(sd_netlink *rtnl, sd_netlink_message *m, NetDev *netdev) {
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L2tpSession *session;
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L2tpTunnel *t;
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int r;
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assert(netdev);
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assert(netdev->state != _NETDEV_STATE_INVALID);
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t = L2TP(netdev);
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assert(t);
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r = sd_netlink_message_get_errno(m);
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if (r == -EEXIST)
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log_netdev_info(netdev, "netdev exists, using existing without changing its parameters");
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else if (r < 0) {
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log_netdev_warning_errno(netdev, r, "netdev could not be created: %m");
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netdev_drop(netdev);
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return 1;
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}
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log_netdev_debug(netdev, "L2TP tunnel is created");
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ORDERED_HASHMAP_FOREACH(session, t->sessions_by_section)
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(void) l2tp_create_session(netdev, session);
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return 1;
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}
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static int l2tp_create_tunnel(NetDev *netdev, Link *link) {
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_cleanup_(sd_netlink_message_unrefp) sd_netlink_message *m = NULL;
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union in_addr_union local_address;
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L2tpTunnel *t;
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int r;
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assert(netdev);
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t = L2TP(netdev);
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assert(t);
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r = l2tp_acquire_local_address(t, link, &local_address);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Could not find local address.");
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if (r > 0 && DEBUG_LOGGING) {
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_cleanup_free_ char *str = NULL;
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(void) in_addr_to_string(t->family, &local_address, &str);
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log_netdev_debug(netdev, "Local address %s acquired.", strna(str));
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}
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r = netdev_l2tp_fill_message_tunnel(netdev, &local_address, &m);
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if (r < 0)
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return r;
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r = netlink_call_async(netdev->manager->genl, NULL, m, l2tp_create_tunnel_handler,
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netdev_destroy_callback, netdev);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Failed to create L2TP tunnel: %m");
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netdev_ref(netdev);
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return 0;
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}
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int config_parse_l2tp_tunnel_address(
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const char *unit,
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const char *filename,
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unsigned line,
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const char *section,
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unsigned section_line,
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const char *lvalue,
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int ltype,
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const char *rvalue,
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void *data,
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void *userdata) {
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L2tpTunnel *t = userdata;
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union in_addr_union *addr = data;
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int r;
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assert(filename);
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assert(lvalue);
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assert(rvalue);
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assert(data);
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if (streq(lvalue, "Local")) {
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L2tpLocalAddressType addr_type;
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if (isempty(rvalue))
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addr_type = NETDEV_L2TP_LOCAL_ADDRESS_AUTO;
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else
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addr_type = l2tp_local_address_type_from_string(rvalue);
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if (addr_type >= 0) {
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if (in_addr_is_null(t->family, &t->remote) != 0)
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/* If Remote= is not specified yet, then also clear family. */
|
|
t->family = AF_UNSPEC;
|
|
|
|
t->local = IN_ADDR_NULL;
|
|
t->local_address_type = addr_type;
|
|
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if (t->family == AF_UNSPEC)
|
|
r = in_addr_from_string_auto(rvalue, &t->family, addr);
|
|
else
|
|
r = in_addr_from_string(t->family, rvalue, addr);
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_WARNING, filename, line, r,
|
|
"Invalid L2TP Tunnel address specified in %s='%s', ignoring assignment: %m", lvalue, rvalue);
|
|
return 0;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_l2tp_tunnel_id(
|
|
const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
unsigned section_line,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
uint32_t *id = data, k;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
r = safe_atou32(rvalue, &k);
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_WARNING, filename, line, r,
|
|
"Failed to parse L2TP tunnel id. Ignoring assignment: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
if (k == 0) {
|
|
log_syntax(unit, LOG_WARNING, filename, line, 0,
|
|
"Invalid L2TP tunnel id. Ignoring assignment: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
*id = k;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_l2tp_session_id(
|
|
const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
unsigned section_line,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
_cleanup_(l2tp_session_free_or_set_invalidp) L2tpSession *session = NULL;
|
|
L2tpTunnel *t = userdata;
|
|
uint32_t k;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(section);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
r = l2tp_session_new_static(t, filename, section_line, &session);
|
|
if (r < 0)
|
|
return log_oom();
|
|
|
|
r = safe_atou32(rvalue, &k);
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_WARNING, filename, line, r,
|
|
"Failed to parse L2TP session id. Ignoring assignment: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
if (k == 0) {
|
|
log_syntax(unit, LOG_WARNING, filename, line, 0,
|
|
"Invalid L2TP session id. Ignoring assignment: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
if (streq(lvalue, "SessionId"))
|
|
session->session_id = k;
|
|
else
|
|
session->peer_session_id = k;
|
|
|
|
session = NULL;
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_l2tp_session_l2spec(
|
|
const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
unsigned section_line,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
_cleanup_(l2tp_session_free_or_set_invalidp) L2tpSession *session = NULL;
|
|
L2tpTunnel *t = userdata;
|
|
L2tpL2specType spec;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(section);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
r = l2tp_session_new_static(t, filename, section_line, &session);
|
|
if (r < 0)
|
|
return log_oom();
|
|
|
|
spec = l2tp_l2spec_type_from_string(rvalue);
|
|
if (spec < 0) {
|
|
log_syntax(unit, LOG_WARNING, filename, line, 0,
|
|
"Failed to parse layer2 specific header type. Ignoring assignment: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
session->l2tp_l2spec_type = spec;
|
|
|
|
session = NULL;
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_l2tp_session_name(
|
|
const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
unsigned section_line,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
_cleanup_(l2tp_session_free_or_set_invalidp) L2tpSession *session = NULL;
|
|
L2tpTunnel *t = userdata;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(section);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
r = l2tp_session_new_static(t, filename, section_line, &session);
|
|
if (r < 0)
|
|
return log_oom();
|
|
|
|
if (!ifname_valid(rvalue)) {
|
|
log_syntax(unit, LOG_WARNING, filename, line, 0,
|
|
"Failed to parse L2TP tunnel session name. Ignoring assignment: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
r = free_and_strdup(&session->name, rvalue);
|
|
if (r < 0)
|
|
return log_oom();
|
|
|
|
session = NULL;
|
|
return 0;
|
|
}
|
|
|
|
static void l2tp_tunnel_init(NetDev *netdev) {
|
|
L2tpTunnel *t;
|
|
|
|
assert(netdev);
|
|
|
|
t = L2TP(netdev);
|
|
|
|
assert(t);
|
|
|
|
t->l2tp_encap_type = NETDEV_L2TP_ENCAPTYPE_UDP;
|
|
t->udp6_csum_rx = true;
|
|
t->udp6_csum_tx = true;
|
|
}
|
|
|
|
static int l2tp_session_verify(L2tpSession *session) {
|
|
NetDev *netdev;
|
|
|
|
assert(session);
|
|
assert(session->tunnel);
|
|
|
|
netdev = NETDEV(session->tunnel);
|
|
|
|
if (section_is_invalid(session->section))
|
|
return -EINVAL;
|
|
|
|
if (!session->name)
|
|
return log_netdev_error_errno(netdev, SYNTHETIC_ERRNO(EINVAL),
|
|
"%s: L2TP session without name configured. "
|
|
"Ignoring [L2TPSession] section from line %u",
|
|
session->section->filename, session->section->line);
|
|
|
|
if (session->session_id == 0 || session->peer_session_id == 0)
|
|
return log_netdev_error_errno(netdev, SYNTHETIC_ERRNO(EINVAL),
|
|
"%s: L2TP session without session IDs configured. "
|
|
"Ignoring [L2TPSession] section from line %u",
|
|
session->section->filename, session->section->line);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int netdev_l2tp_tunnel_verify(NetDev *netdev, const char *filename) {
|
|
L2tpTunnel *t;
|
|
L2tpSession *session;
|
|
|
|
assert(netdev);
|
|
assert(filename);
|
|
|
|
t = L2TP(netdev);
|
|
|
|
assert(t);
|
|
|
|
if (!IN_SET(t->family, AF_INET, AF_INET6))
|
|
return log_netdev_error_errno(netdev, SYNTHETIC_ERRNO(EINVAL),
|
|
"%s: L2TP tunnel with invalid address family configured. Ignoring",
|
|
filename);
|
|
|
|
if (in_addr_is_null(t->family, &t->remote))
|
|
return log_netdev_error_errno(netdev, SYNTHETIC_ERRNO(EINVAL),
|
|
"%s: L2TP tunnel without a remote address configured. Ignoring",
|
|
filename);
|
|
|
|
if (t->tunnel_id == 0 || t->peer_tunnel_id == 0)
|
|
return log_netdev_error_errno(netdev, SYNTHETIC_ERRNO(EINVAL),
|
|
"%s: L2TP tunnel without tunnel IDs configured. Ignoring",
|
|
filename);
|
|
|
|
ORDERED_HASHMAP_FOREACH(session, t->sessions_by_section)
|
|
if (l2tp_session_verify(session) < 0)
|
|
l2tp_session_free(session);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void l2tp_tunnel_done(NetDev *netdev) {
|
|
L2tpTunnel *t;
|
|
|
|
assert(netdev);
|
|
|
|
t = L2TP(netdev);
|
|
|
|
assert(t);
|
|
|
|
ordered_hashmap_free_with_destructor(t->sessions_by_section, l2tp_session_free);
|
|
}
|
|
|
|
const NetDevVTable l2tptnl_vtable = {
|
|
.object_size = sizeof(L2tpTunnel),
|
|
.init = l2tp_tunnel_init,
|
|
.sections = NETDEV_COMMON_SECTIONS "L2TP\0L2TPSession\0",
|
|
.create_after_configured = l2tp_create_tunnel,
|
|
.done = l2tp_tunnel_done,
|
|
.create_type = NETDEV_CREATE_AFTER_CONFIGURED,
|
|
.config_verify = netdev_l2tp_tunnel_verify,
|
|
};
|