networkd: Introduce l2tp tunnel
This works allows networkd to configure l2tp tunnel. See http://man7.org/linux/man-pages/man8/ip-l2tp.8.html
This commit is contained in:
committed by
Yu Watanabe
parent
7033af49df
commit
3a56e697c8
@@ -0,0 +1,586 @@
|
||||
/* SPDX-License-Identifier: LGPL-2.1+ */
|
||||
|
||||
#include <arpa/inet.h>
|
||||
#include <linux/l2tp.h>
|
||||
#include <linux/genetlink.h>
|
||||
|
||||
#include "sd-netlink.h"
|
||||
|
||||
#include "conf-parser.h"
|
||||
#include "hashmap.h"
|
||||
#include "l2tp-tunnel.h"
|
||||
#include "missing.h"
|
||||
#include "netlink-util.h"
|
||||
#include "networkd-manager.h"
|
||||
#include "parse-util.h"
|
||||
#include "socket-util.h"
|
||||
#include "string-table.h"
|
||||
#include "string-util.h"
|
||||
#include "util.h"
|
||||
|
||||
static const char* const l2tp_l2spec_type_table[_NETDEV_L2TP_L2SPECTYPE_MAX] = {
|
||||
[NETDEV_L2TP_L2SPECTYPE_NONE] = "none",
|
||||
[NETDEV_L2TP_L2SPECTYPE_DEFAULT] = "default",
|
||||
};
|
||||
|
||||
DEFINE_PRIVATE_STRING_TABLE_LOOKUP_FROM_STRING(l2tp_l2spec_type, L2tpL2specType);
|
||||
|
||||
static const char* const l2tp_encap_type_table[_NETDEV_L2TP_ENCAPTYPE_MAX] = {
|
||||
[NETDEV_L2TP_ENCAPTYPE_UDP] = "udp",
|
||||
[NETDEV_L2TP_ENCAPTYPE_IP] = "ip",
|
||||
};
|
||||
|
||||
DEFINE_PRIVATE_STRING_TABLE_LOOKUP_FROM_STRING(l2tp_encap_type, L2tpEncapType);
|
||||
DEFINE_CONFIG_PARSE_ENUM(config_parse_l2tp_encap_type, l2tp_encap_type, L2tpEncapType, "Failed to parse L2TP Encapsulation Type");
|
||||
|
||||
static void l2tp_session_free(L2tpSession *s) {
|
||||
if (!s)
|
||||
return;
|
||||
|
||||
if (s->tunnel && s->section)
|
||||
ordered_hashmap_remove(s->tunnel->sessions_by_section, s);
|
||||
|
||||
network_config_section_free(s->section);
|
||||
|
||||
free(s->name);
|
||||
|
||||
free(s);
|
||||
}
|
||||
|
||||
DEFINE_NETWORK_SECTION_FUNCTIONS(L2tpSession, l2tp_session_free);
|
||||
|
||||
static int l2tp_session_new_static(L2tpTunnel *t, const char *filename, unsigned section_line, L2tpSession **ret) {
|
||||
_cleanup_(network_config_section_freep) NetworkConfigSection *n = NULL;
|
||||
_cleanup_(l2tp_session_freep) L2tpSession *s = NULL;
|
||||
int r;
|
||||
|
||||
assert(t);
|
||||
assert(ret);
|
||||
assert(filename);
|
||||
assert(section_line > 0);
|
||||
|
||||
r = network_config_section_new(filename, section_line, &n);
|
||||
if (r < 0)
|
||||
return r;
|
||||
|
||||
s = ordered_hashmap_get(t->sessions_by_section, n);
|
||||
if (s) {
|
||||
*ret = TAKE_PTR(s);
|
||||
return 0;
|
||||
}
|
||||
|
||||
s = new(L2tpSession, 1);
|
||||
if (!s)
|
||||
return -ENOMEM;
|
||||
|
||||
*s = (L2tpSession) {
|
||||
.l2tp_l2spec_type = NETDEV_L2TP_L2SPECTYPE_DEFAULT,
|
||||
.tunnel = t,
|
||||
.section = TAKE_PTR(n),
|
||||
};
|
||||
|
||||
r = ordered_hashmap_ensure_allocated(&t->sessions_by_section, &network_config_hash_ops);
|
||||
if (r < 0)
|
||||
return r;
|
||||
|
||||
r = ordered_hashmap_put(t->sessions_by_section, s->section, s);
|
||||
if (r < 0)
|
||||
return r;
|
||||
|
||||
*ret = TAKE_PTR(s);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int netdev_l2tp_fill_message_tunnel(NetDev *netdev, sd_netlink_message **ret) {
|
||||
_cleanup_(sd_netlink_message_unrefp) sd_netlink_message *m = NULL;
|
||||
uint16_t encap_type;
|
||||
L2tpTunnel *t;
|
||||
int r;
|
||||
|
||||
assert(netdev);
|
||||
|
||||
t = L2TP(netdev);
|
||||
|
||||
assert(t);
|
||||
|
||||
r = sd_genl_message_new(netdev->manager->genl, SD_GENL_L2TP, L2TP_CMD_TUNNEL_CREATE, &m);
|
||||
if (r < 0)
|
||||
return log_netdev_error_errno(netdev, r, "Failed to create generic netlink message: %m");
|
||||
|
||||
r = sd_netlink_message_append_u32(m, L2TP_ATTR_CONN_ID, t->tunnel_id);
|
||||
if (r < 0)
|
||||
return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_CONN_ID attribute: %m");
|
||||
|
||||
r = sd_netlink_message_append_u32(m, L2TP_ATTR_PEER_CONN_ID, t->peer_tunnel_id);
|
||||
if (r < 0)
|
||||
return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_PEER_CONN_ID attribute: %m");
|
||||
|
||||
r = sd_netlink_message_append_u8(m, L2TP_ATTR_PROTO_VERSION, 3);
|
||||
if (r < 0)
|
||||
return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_PROTO_VERSION attribute: %m");
|
||||
|
||||
switch(t->l2tp_encap_type) {
|
||||
case NETDEV_L2TP_ENCAPTYPE_IP:
|
||||
encap_type = L2TP_ENCAPTYPE_IP;
|
||||
break;
|
||||
case NETDEV_L2TP_ENCAPTYPE_UDP:
|
||||
default:
|
||||
encap_type = L2TP_ENCAPTYPE_UDP;
|
||||
break;
|
||||
}
|
||||
|
||||
r = sd_netlink_message_append_u16(m, L2TP_ATTR_ENCAP_TYPE, encap_type);
|
||||
if (r < 0)
|
||||
return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_ENCAP_TYPE attribute: %m");
|
||||
|
||||
if (t->family == AF_INET) {
|
||||
r = sd_netlink_message_append_in_addr(m, L2TP_ATTR_IP_SADDR, &t->local.in);
|
||||
if (r < 0)
|
||||
return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_IP_SADDR attribute: %m");
|
||||
|
||||
r = sd_netlink_message_append_in_addr(m, L2TP_ATTR_IP_DADDR, &t->remote.in);
|
||||
if (r < 0)
|
||||
return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_IP_DADDR attribute: %m");
|
||||
} else {
|
||||
r = sd_netlink_message_append_in6_addr(m, L2TP_ATTR_IP6_SADDR, &t->local.in6);
|
||||
if (r < 0)
|
||||
return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_IP6_SADDR attribute: %m");
|
||||
|
||||
r = sd_netlink_message_append_in6_addr(m, L2TP_ATTR_IP6_DADDR, &t->remote.in6);
|
||||
if (r < 0)
|
||||
return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_IP6_DADDR attribute: %m");
|
||||
}
|
||||
|
||||
if (encap_type == L2TP_ENCAPTYPE_UDP) {
|
||||
r = sd_netlink_message_append_u16(m, L2TP_ATTR_UDP_SPORT, t->l2tp_udp_sport);
|
||||
if (r < 0)
|
||||
return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_UDP_SPORT, attribute: %m");
|
||||
|
||||
r = sd_netlink_message_append_u16(m, L2TP_ATTR_UDP_DPORT, t->l2tp_udp_dport);
|
||||
if (r < 0)
|
||||
return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_UDP_DPORT attribute: %m");
|
||||
|
||||
if (t->udp_csum) {
|
||||
r = sd_netlink_message_append_u8(m, L2TP_ATTR_UDP_CSUM, t->udp_csum);
|
||||
if (r < 0)
|
||||
return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_UDP_CSUM attribute: %m");
|
||||
}
|
||||
|
||||
if (t->udp6_csum_tx) {
|
||||
r = sd_netlink_message_append_flag(m, L2TP_ATTR_UDP_ZERO_CSUM6_TX);
|
||||
if (r < 0)
|
||||
return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_UDP_ZERO_CSUM6_TX attribute: %m");
|
||||
}
|
||||
|
||||
if (t->udp6_csum_rx) {
|
||||
r = sd_netlink_message_append_flag(m, L2TP_ATTR_UDP_ZERO_CSUM6_RX);
|
||||
if (r < 0)
|
||||
return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_UDP_ZERO_CSUM6_RX attribute: %m");
|
||||
}
|
||||
}
|
||||
|
||||
*ret = TAKE_PTR(m);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int netdev_l2tp_fill_message_session(NetDev *netdev, L2tpSession *session, sd_netlink_message **ret) {
|
||||
_cleanup_(sd_netlink_message_unrefp) sd_netlink_message *m = NULL;
|
||||
uint16_t l2_spec_len;
|
||||
uint8_t l2_spec_type;
|
||||
int r;
|
||||
|
||||
assert(netdev);
|
||||
assert(session);
|
||||
assert(session->tunnel);
|
||||
|
||||
r = sd_genl_message_new(netdev->manager->genl, SD_GENL_L2TP, L2TP_CMD_SESSION_CREATE, &m);
|
||||
if (r < 0)
|
||||
return log_netdev_error_errno(netdev, r, "Failed to create generic netlink message: %m");
|
||||
|
||||
r = sd_netlink_message_append_u32(m, L2TP_ATTR_CONN_ID, session->tunnel->tunnel_id);
|
||||
if (r < 0)
|
||||
return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_CONN_ID attribute: %m");
|
||||
|
||||
r = sd_netlink_message_append_u32(m, L2TP_ATTR_PEER_CONN_ID, session->tunnel->peer_tunnel_id);
|
||||
if (r < 0)
|
||||
return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_PEER_CONN_ID attribute: %m");
|
||||
|
||||
r = sd_netlink_message_append_u32(m, L2TP_ATTR_SESSION_ID, session->session_id);
|
||||
if (r < 0)
|
||||
return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_SESSION_ID attribute: %m");
|
||||
|
||||
r = sd_netlink_message_append_u32(m, L2TP_ATTR_PEER_SESSION_ID, session->peer_session_id);
|
||||
if (r < 0)
|
||||
return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_PEER_SESSION_ID attribute: %m");
|
||||
|
||||
r = sd_netlink_message_append_u16(m, L2TP_ATTR_PW_TYPE, L2TP_PWTYPE_ETH);
|
||||
if (r < 0)
|
||||
return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_PW_TYPE attribute: %m");
|
||||
|
||||
switch (session->l2tp_l2spec_type) {
|
||||
case NETDEV_L2TP_L2SPECTYPE_NONE:
|
||||
l2_spec_type = L2TP_L2SPECTYPE_NONE;
|
||||
l2_spec_len = 0;
|
||||
break;
|
||||
case NETDEV_L2TP_L2SPECTYPE_DEFAULT:
|
||||
default:
|
||||
l2_spec_type = L2TP_L2SPECTYPE_DEFAULT;
|
||||
l2_spec_len = 4;
|
||||
break;
|
||||
}
|
||||
|
||||
r = sd_netlink_message_append_u8(m, L2TP_ATTR_L2SPEC_TYPE, l2_spec_type);
|
||||
if (r < 0)
|
||||
return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_L2SPEC_TYPE attribute: %m");
|
||||
|
||||
r = sd_netlink_message_append_u8(m, L2TP_ATTR_L2SPEC_LEN, l2_spec_len);
|
||||
if (r < 0)
|
||||
return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_L2SPEC_LEN attribute: %m");
|
||||
|
||||
r = sd_netlink_message_append_string(m, L2TP_ATTR_IFNAME, session->name);
|
||||
if (r < 0)
|
||||
return log_netdev_error_errno(netdev, r, "Could not append L2TP_ATTR_IFNAME attribute: %m");
|
||||
|
||||
*ret = TAKE_PTR(m);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int netdev_l2tp_tunnel_create(NetDev *netdev, Link *link) {
|
||||
_cleanup_(sd_netlink_message_unrefp) sd_netlink_message *m = NULL;
|
||||
L2tpTunnel *t;
|
||||
L2tpSession *session;
|
||||
uint32_t serial;
|
||||
Iterator i;
|
||||
int r;
|
||||
|
||||
assert(netdev);
|
||||
|
||||
t = L2TP(netdev);
|
||||
|
||||
assert(t);
|
||||
|
||||
r = netdev_l2tp_fill_message_tunnel(netdev, &m);
|
||||
if (r < 0)
|
||||
return r;
|
||||
|
||||
r = sd_netlink_send(netdev->manager->genl, m, &serial);
|
||||
if (r < 0)
|
||||
return log_netdev_error_errno(netdev, r, "Failed to create L2TP tunnel: %m");
|
||||
|
||||
log_netdev_debug(netdev, "L2TP tunnel created");
|
||||
|
||||
ORDERED_HASHMAP_FOREACH(session, t->sessions_by_section, i) {
|
||||
_cleanup_(sd_netlink_message_unrefp) sd_netlink_message *n = NULL;
|
||||
|
||||
r = netdev_l2tp_fill_message_session(netdev, session, &n);
|
||||
if (r < 0)
|
||||
continue;
|
||||
|
||||
r = sd_netlink_send(netdev->manager->genl, n, &serial);
|
||||
if (r < 0)
|
||||
log_netdev_error_errno(netdev, r, "Failed to create L2TP session %s: %m", session->name);
|
||||
|
||||
log_netdev_debug(netdev, "L2TP session %s created", session->name);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int config_parse_l2tp_tunnel_address(
|
||||
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) {
|
||||
|
||||
L2tpTunnel *t = userdata;
|
||||
union in_addr_union *addr = data;
|
||||
int r;
|
||||
|
||||
assert(filename);
|
||||
assert(lvalue);
|
||||
assert(rvalue);
|
||||
assert(data);
|
||||
|
||||
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_ERR, 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_ERR, filename, line, r,
|
||||
"Failed to parse L2TP tunnel id. Ignoring assignment: %s", rvalue);
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (k == 0) {
|
||||
log_syntax(unit, LOG_ERR, filename, line, r,
|
||||
"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 r;
|
||||
|
||||
r = safe_atou32(rvalue, &k);
|
||||
if (r < 0) {
|
||||
log_syntax(unit, LOG_ERR, filename, line, r,
|
||||
"Failed to parse L2TP session id. Ignoring assignment: %s", rvalue);
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (k == 0) {
|
||||
log_syntax(unit, LOG_ERR, filename, line, r,
|
||||
"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 r;
|
||||
|
||||
spec = l2tp_l2spec_type_from_string(rvalue);
|
||||
if (spec < 0) {
|
||||
log_syntax(unit, LOG_ERR, 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 r;
|
||||
|
||||
if (!ifname_valid(rvalue)) {
|
||||
log_syntax(unit, LOG_ERR, filename, line, 0,
|
||||
"Failed to parse L2TP tunnel session name. Ignoring assignment: %s", rvalue);
|
||||
return 0;
|
||||
}
|
||||
|
||||
session->name = strdup(rvalue);
|
||||
if (!session->name)
|
||||
return -ENOMEM;
|
||||
|
||||
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;
|
||||
Iterator i;
|
||||
|
||||
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->local) || in_addr_is_null(t->family, &t->remote))
|
||||
return log_netdev_error_errno(netdev, SYNTHETIC_ERRNO(EINVAL),
|
||||
"%s: L2TP tunnel without a local or 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, i)
|
||||
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 = "Match\0NetDev\0L2TP\0L2TPSession",
|
||||
.create_after_configured = netdev_l2tp_tunnel_create,
|
||||
.done = l2tp_tunnel_done,
|
||||
.create_type = NETDEV_CREATE_AFTER_CONFIGURED,
|
||||
.config_verify = netdev_l2tp_tunnel_verify,
|
||||
};
|
||||
@@ -0,0 +1,68 @@
|
||||
/* SPDX-License-Identifier: LGPL-2.1+ */
|
||||
#pragma once
|
||||
|
||||
#include <linux/l2tp.h>
|
||||
|
||||
#include "in-addr-util.h"
|
||||
#include "netdev.h"
|
||||
#include "networkd-util.h"
|
||||
|
||||
typedef enum L2tpL2specType {
|
||||
NETDEV_L2TP_L2SPECTYPE_NONE = L2TP_L2SPECTYPE_NONE,
|
||||
NETDEV_L2TP_L2SPECTYPE_DEFAULT = L2TP_L2SPECTYPE_DEFAULT,
|
||||
_NETDEV_L2TP_L2SPECTYPE_MAX,
|
||||
_NETDEV_L2TP_L2SPECTYPE_INVALID = -1,
|
||||
} L2tpL2specType;
|
||||
|
||||
typedef enum L2tpEncapType {
|
||||
NETDEV_L2TP_ENCAPTYPE_UDP = L2TP_ENCAPTYPE_UDP,
|
||||
NETDEV_L2TP_ENCAPTYPE_IP = L2TP_ENCAPTYPE_IP,
|
||||
_NETDEV_L2TP_ENCAPTYPE_MAX,
|
||||
_NETDEV_L2TP_ENCAPTYPE_INVALID = -1,
|
||||
} L2tpEncapType;
|
||||
|
||||
typedef struct L2tpTunnel L2tpTunnel;
|
||||
|
||||
typedef struct L2tpSession {
|
||||
L2tpTunnel *tunnel;
|
||||
NetworkConfigSection *section;
|
||||
|
||||
char *name;
|
||||
|
||||
uint32_t session_id;
|
||||
uint32_t peer_session_id;
|
||||
L2tpL2specType l2tp_l2spec_type;
|
||||
} L2tpSession;
|
||||
|
||||
struct L2tpTunnel {
|
||||
NetDev meta;
|
||||
|
||||
uint16_t l2tp_udp_sport;
|
||||
uint16_t l2tp_udp_dport;
|
||||
|
||||
uint32_t tunnel_id;
|
||||
uint32_t peer_tunnel_id;
|
||||
|
||||
int family;
|
||||
|
||||
bool udp_csum;
|
||||
bool udp6_csum_rx;
|
||||
bool udp6_csum_tx;
|
||||
|
||||
union in_addr_union local;
|
||||
union in_addr_union remote;
|
||||
|
||||
L2tpEncapType l2tp_encap_type;
|
||||
|
||||
OrderedHashmap *sessions_by_section;
|
||||
};
|
||||
|
||||
DEFINE_NETDEV_CAST(L2TP, L2tpTunnel);
|
||||
extern const NetDevVTable l2tptnl_vtable;
|
||||
|
||||
CONFIG_PARSER_PROTOTYPE(config_parse_l2tp_tunnel_address);
|
||||
CONFIG_PARSER_PROTOTYPE(config_parse_l2tp_tunnel_id);
|
||||
CONFIG_PARSER_PROTOTYPE(config_parse_l2tp_encap_type);
|
||||
CONFIG_PARSER_PROTOTYPE(config_parse_l2tp_session_l2spec);
|
||||
CONFIG_PARSER_PROTOTYPE(config_parse_l2tp_session_id);
|
||||
CONFIG_PARSER_PROTOTYPE(config_parse_l2tp_session_name);
|
||||
@@ -20,6 +20,7 @@ _Pragma("GCC diagnostic ignored \"-Wimplicit-fallthrough\"")
|
||||
#include "netdev/vxcan.h"
|
||||
#include "netdev/wireguard.h"
|
||||
#include "netdev/fou-tunnel.h"
|
||||
#include "netdev/l2tp-tunnel.h"
|
||||
#include "vlan-util.h"
|
||||
%}
|
||||
struct ConfigPerfItem;
|
||||
@@ -77,6 +78,20 @@ Tunnel.ISATAP, config_parse_tristate, 0,
|
||||
FooOverUDP.Protocol, config_parse_uint8, 0, offsetof(FouTunnel, fou_protocol)
|
||||
FooOverUDP.Encapsulation, config_parse_fou_encap_type, 0, offsetof(FouTunnel, fou_encap_type)
|
||||
FooOverUDP.Port, config_parse_ip_port, 0, offsetof(FouTunnel, port)
|
||||
L2TP.TunnelId, config_parse_l2tp_tunnel_id, 0, offsetof(L2tpTunnel, tunnel_id)
|
||||
L2TP.PeerTunnelId, config_parse_l2tp_tunnel_id, 0, offsetof(L2tpTunnel, peer_tunnel_id)
|
||||
L2TP.UDPSourcePort, config_parse_ip_port, 0, offsetof(L2tpTunnel, l2tp_udp_sport)
|
||||
L2TP.UDPDestinationPort, config_parse_ip_port, 0, offsetof(L2tpTunnel, l2tp_udp_dport)
|
||||
L2TP.Local, config_parse_l2tp_tunnel_address, 0, offsetof(L2tpTunnel, local)
|
||||
L2TP.Remote, config_parse_l2tp_tunnel_address, 0, offsetof(L2tpTunnel, remote)
|
||||
L2TP.EncapsulationType, config_parse_l2tp_encap_type, 0, offsetof(L2tpTunnel, l2tp_encap_type)
|
||||
L2TP.UDPCheckSum, config_parse_bool, 0, offsetof(L2tpTunnel, udp_csum)
|
||||
L2TP.UDP6CheckSumRx, config_parse_bool, 0, offsetof(L2tpTunnel, udp6_csum_rx)
|
||||
L2TP.UDP6CheckSumTx, config_parse_bool, 0, offsetof(L2tpTunnel, udp6_csum_tx)
|
||||
L2TPSession.SessionId, config_parse_l2tp_session_id, 0, 0
|
||||
L2TPSession.PeerSessionId, config_parse_l2tp_session_id, 0, 0
|
||||
L2TPSession.Layer2SpecificHeader, config_parse_l2tp_session_l2spec, 0, 0
|
||||
L2TPSession.Name, config_parse_l2tp_session_name, 0, 0
|
||||
Peer.Name, config_parse_ifname, 0, offsetof(Veth, ifname_peer)
|
||||
Peer.MACAddress, config_parse_hwaddr, 0, offsetof(Veth, mac_peer)
|
||||
VXCAN.Peer, config_parse_ifname, 0, offsetof(VxCan, ifname_peer)
|
||||
|
||||
+22
-20
@@ -7,35 +7,35 @@
|
||||
#include "conf-parser.h"
|
||||
#include "fd-util.h"
|
||||
#include "list.h"
|
||||
#include "netdev/bond.h"
|
||||
#include "netdev/bridge.h"
|
||||
#include "netdev/dummy.h"
|
||||
#include "netdev/fou-tunnel.h"
|
||||
#include "netdev/geneve.h"
|
||||
#include "netdev/ipvlan.h"
|
||||
#include "netdev/l2tp-tunnel.h"
|
||||
#include "netdev/macvlan.h"
|
||||
#include "netdev/netdev.h"
|
||||
#include "netdev/netdevsim.h"
|
||||
#include "netdev/tunnel.h"
|
||||
#include "netdev/tuntap.h"
|
||||
#include "netdev/vcan.h"
|
||||
#include "netdev/veth.h"
|
||||
#include "netdev/vlan.h"
|
||||
#include "netdev/vrf.h"
|
||||
#include "netdev/vxcan.h"
|
||||
#include "netdev/vxlan.h"
|
||||
#include "netdev/wireguard.h"
|
||||
#include "netlink-util.h"
|
||||
#include "network-internal.h"
|
||||
#include "netdev/netdev.h"
|
||||
#include "networkd-manager.h"
|
||||
#include "networkd-link.h"
|
||||
#include "networkd-manager.h"
|
||||
#include "siphash24.h"
|
||||
#include "stat-util.h"
|
||||
#include "string-table.h"
|
||||
#include "string-util.h"
|
||||
#include "strv.h"
|
||||
|
||||
#include "netdev/bridge.h"
|
||||
#include "netdev/bond.h"
|
||||
#include "netdev/geneve.h"
|
||||
#include "netdev/vlan.h"
|
||||
#include "netdev/macvlan.h"
|
||||
#include "netdev/ipvlan.h"
|
||||
#include "netdev/vxlan.h"
|
||||
#include "netdev/tunnel.h"
|
||||
#include "netdev/tuntap.h"
|
||||
#include "netdev/veth.h"
|
||||
#include "netdev/dummy.h"
|
||||
#include "netdev/vrf.h"
|
||||
#include "netdev/vcan.h"
|
||||
#include "netdev/vxcan.h"
|
||||
#include "netdev/wireguard.h"
|
||||
#include "netdev/netdevsim.h"
|
||||
#include "netdev/fou-tunnel.h"
|
||||
|
||||
const NetDevVTable * const netdev_vtable[_NETDEV_KIND_MAX] = {
|
||||
[NETDEV_KIND_BRIDGE] = &bridge_vtable,
|
||||
[NETDEV_KIND_BOND] = &bond_vtable,
|
||||
@@ -65,6 +65,7 @@ const NetDevVTable * const netdev_vtable[_NETDEV_KIND_MAX] = {
|
||||
[NETDEV_KIND_NETDEVSIM] = &netdevsim_vtable,
|
||||
[NETDEV_KIND_FOU] = &foutnl_vtable,
|
||||
[NETDEV_KIND_ERSPAN] = &erspan_vtable,
|
||||
[NETDEV_KIND_L2TP] = &l2tptnl_vtable,
|
||||
};
|
||||
|
||||
static const char* const netdev_kind_table[_NETDEV_KIND_MAX] = {
|
||||
@@ -96,6 +97,7 @@ static const char* const netdev_kind_table[_NETDEV_KIND_MAX] = {
|
||||
[NETDEV_KIND_NETDEVSIM] = "netdevsim",
|
||||
[NETDEV_KIND_FOU] = "fou",
|
||||
[NETDEV_KIND_ERSPAN] = "erspan",
|
||||
[NETDEV_KIND_L2TP] = "l2tp",
|
||||
};
|
||||
|
||||
DEFINE_STRING_TABLE_LOOKUP(netdev_kind, NetDevKind);
|
||||
|
||||
@@ -46,6 +46,7 @@ typedef enum NetDevKind {
|
||||
NETDEV_KIND_NETDEVSIM,
|
||||
NETDEV_KIND_FOU,
|
||||
NETDEV_KIND_ERSPAN,
|
||||
NETDEV_KIND_L2TP,
|
||||
_NETDEV_KIND_MAX,
|
||||
_NETDEV_KIND_TUNNEL, /* Used by config_parse_stacked_netdev() */
|
||||
_NETDEV_KIND_INVALID = -1
|
||||
|
||||
Reference in New Issue
Block a user