+++ /dev/null
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
- This file is part of systemd.
-
- Copyright 2014 Susant Sahani
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <arpa/inet.h>
-#include <net/if.h>
-#include <linux/ip.h>
-#include <linux/if_tunnel.h>
-#include <linux/ip6_tunnel.h>
-
-#include "sd-rtnl.h"
-#include "networkd-netdev-tunnel.h"
-#include "networkd-link.h"
-#include "util.h"
-#include "missing.h"
-#include "conf-parser.h"
-
-#define DEFAULT_TNL_HOP_LIMIT 64
-
-static const char* const ip6tnl_mode_table[_NETDEV_IP6_TNL_MODE_MAX] = {
- [NETDEV_IP6_TNL_MODE_IP6IP6] = "ip6ip6",
- [NETDEV_IP6_TNL_MODE_IPIP6] = "ipip6",
- [NETDEV_IP6_TNL_MODE_ANYIP6] = "any",
-};
-
-DEFINE_STRING_TABLE_LOOKUP(ip6tnl_mode, Ip6TnlMode);
-DEFINE_CONFIG_PARSE_ENUM(config_parse_ip6tnl_mode, ip6tnl_mode, Ip6TnlMode, "Failed to parse ip6 tunnel Mode");
-
-static int netdev_ipip_fill_message_create(NetDev *netdev, Link *link, sd_rtnl_message *m) {
- Tunnel *t = IPIP(netdev);
- int r;
-
- assert(netdev);
- assert(link);
- assert(m);
- assert(t);
- assert(t->family == AF_INET);
-
- r = sd_rtnl_message_append_u32(m, IFLA_IPTUN_LINK, link->ifindex);
- if (r < 0) {
- log_netdev_error(netdev,
- "Could not append IFLA_IPTUN_LINK attribute: %s",
- strerror(-r));
- return r;
- }
-
- r = sd_rtnl_message_append_in_addr(m, IFLA_IPTUN_LOCAL, &t->local.in);
- if (r < 0) {
- log_netdev_error(netdev,
- "Could not append IFLA_IPTUN_LOCAL attribute: %s",
- strerror(-r));
- return r;
- }
-
- r = sd_rtnl_message_append_in_addr(m, IFLA_IPTUN_REMOTE, &t->remote.in);
- if (r < 0) {
- log_netdev_error(netdev,
- "Could not append IFLA_IPTUN_REMOTE attribute: %s",
- strerror(-r));
- return r;
- }
-
- r = sd_rtnl_message_append_u8(m, IFLA_IPTUN_TTL, t->ttl);
- if (r < 0) {
- log_netdev_error(netdev,
- "Could not append IFLA_IPTUN_TTL attribute: %s",
- strerror(-r));
- return r;
- }
-
- r = sd_rtnl_message_append_u8(m, IFLA_IPTUN_PMTUDISC, t->pmtudisc);
- if (r < 0) {
- log_netdev_error(netdev,
- "Could not append IFLA_IPTUN_PMTUDISC attribute: %s",
- strerror(-r));
- return r;
- }
-
- return r;
-}
-
-static int netdev_sit_fill_message_create(NetDev *netdev, Link *link, sd_rtnl_message *m) {
- Tunnel *t = SIT(netdev);
- int r;
-
- assert(netdev);
- assert(link);
- assert(m);
- assert(t);
- assert(t->family == AF_INET);
-
- r = sd_rtnl_message_append_u32(m, IFLA_IPTUN_LINK, link->ifindex);
- if (r < 0) {
- log_netdev_error(netdev,
- "Could not append IFLA_IPTUN_LINK attribute: %s",
- strerror(-r));
- return r;
- }
-
- r = sd_rtnl_message_append_in_addr(m, IFLA_IPTUN_LOCAL, &t->local.in);
- if (r < 0) {
- log_netdev_error(netdev,
- "Could not append IFLA_IPTUN_LOCAL attribute: %s",
- strerror(-r));
- return r;
- }
-
- r = sd_rtnl_message_append_in_addr(m, IFLA_IPTUN_REMOTE, &t->remote.in);
- if (r < 0) {
- log_netdev_error(netdev,
- "Could not append IFLA_IPTUN_REMOTE attribute: %s",
- strerror(-r));
- return r;
- }
-
- r = sd_rtnl_message_append_u8(m, IFLA_IPTUN_TTL, t->ttl);
- if (r < 0) {
- log_netdev_error(netdev,
- "Could not append IFLA_IPTUN_TTL attribute: %s",
- strerror(-r));
- return r;
- }
-
- r = sd_rtnl_message_append_u8(m, IFLA_IPTUN_PMTUDISC, t->pmtudisc);
- if (r < 0) {
- log_netdev_error(netdev,
- "Could not append IFLA_IPTUN_PMTUDISC attribute: %s",
- strerror(-r));
- return r;
- }
-
- return r;
-}
-
-static int netdev_gre_fill_message_create(NetDev *netdev, Link *link, sd_rtnl_message *m) {
- Tunnel *t;
- int r;
-
- assert(netdev);
-
- if (netdev->kind == NETDEV_KIND_GRE)
- t = GRE(netdev);
- else
- t = GRETAP(netdev);
-
- assert(t);
- assert(t->family == AF_INET);
- assert(link);
- assert(m);
-
- r = sd_rtnl_message_append_u32(m, IFLA_GRE_LINK, link->ifindex);
- if (r < 0) {
- log_netdev_error(netdev,
- "Could not append IFLA_GRE_LINK attribute: %s",
- strerror(-r));
- return r;
- }
-
- r = sd_rtnl_message_append_in_addr(m, IFLA_GRE_LOCAL, &t->local.in);
- if (r < 0) {
- log_netdev_error(netdev,
- "Could not append IFLA_GRE_LOCAL attribute: %s",
- strerror(-r));
- return r;
- }
-
- r = sd_rtnl_message_append_in_addr(m, IFLA_GRE_REMOTE, &t->remote.in);
- if (r < 0) {
- log_netdev_error(netdev,
- "Could not append IFLA_GRE_REMOTE attribute: %s",
- strerror(-r));
- return r;
- }
-
- r = sd_rtnl_message_append_u8(m, IFLA_GRE_TTL, t->ttl);
- if (r < 0) {
- log_netdev_error(netdev,
- "Could not append IFLA_GRE_TTL attribute: %s",
- strerror(-r));
- return r;
- }
-
- r = sd_rtnl_message_append_u8(m, IFLA_GRE_TOS, t->tos);
- if (r < 0) {
- log_netdev_error(netdev,
- "Could not append IFLA_GRE_TOS attribute: %s",
- strerror(-r));
- return r;
- }
-
- r = sd_rtnl_message_append_u8(m, IFLA_GRE_PMTUDISC, t->pmtudisc);
- if (r < 0) {
- log_netdev_error(netdev,
- "Could not append IFLA_GRE_PMTUDISC attribute: %s",
- strerror(-r));
- return r;
- }
-
- return r;
-}
-
-static int netdev_ip6gre_fill_message_create(NetDev *netdev, Link *link, sd_rtnl_message *m) {
- Tunnel *t;
- int r;
-
- assert(netdev);
-
- if (netdev->kind == NETDEV_KIND_IP6GRE)
- t = IP6GRE(netdev);
- else
- t = IP6GRETAP(netdev);
-
- assert(t);
- assert(t->family == AF_INET6);
- assert(link);
- assert(m);
-
- r = sd_rtnl_message_append_u32(m, IFLA_GRE_LINK, link->ifindex);
- if (r < 0) {
- log_netdev_error(netdev,
- "Could not append IFLA_GRE_LINK attribute: %s",
- strerror(-r));
- return r;
- }
-
- r = sd_rtnl_message_append_in6_addr(m, IFLA_GRE_LOCAL, &t->local.in6);
- if (r < 0) {
- log_netdev_error(netdev,
- "Could not append IFLA_GRE_LOCAL attribute: %s",
- strerror(-r));
- return r;
- }
-
- r = sd_rtnl_message_append_in6_addr(m, IFLA_GRE_REMOTE, &t->remote.in6);
- if (r < 0) {
- log_netdev_error(netdev,
- "Could not append IFLA_GRE_REMOTE attribute: %s",
- strerror(-r));
- return r;
- }
-
- r = sd_rtnl_message_append_u8(m, IFLA_GRE_TTL, t->ttl);
- if (r < 0) {
- log_netdev_error(netdev,
- "Could not append IFLA_GRE_TTL attribute: %s",
- strerror(-r));
- return r;
- }
-
- return r;
-}
-
-static int netdev_vti_fill_message_create(NetDev *netdev, Link *link, sd_rtnl_message *m) {
- Tunnel *t = VTI(netdev);
- int r;
-
- assert(netdev);
- assert(link);
- assert(m);
- assert(t);
- assert(t->family == AF_INET);
-
- r = sd_rtnl_message_append_u32(m, IFLA_VTI_LINK, link->ifindex);
- if (r < 0) {
- log_netdev_error(netdev,
- "Could not append IFLA_IPTUN_LINK attribute: %s",
- strerror(-r));
- return r;
- }
-
- r = sd_rtnl_message_append_in_addr(m, IFLA_VTI_LOCAL, &t->local.in);
- if (r < 0) {
- log_netdev_error(netdev,
- "Could not append IFLA_IPTUN_LOCAL attribute: %s",
- strerror(-r));
- return r;
- }
-
- r = sd_rtnl_message_append_in_addr(m, IFLA_VTI_REMOTE, &t->remote.in);
- if (r < 0) {
- log_netdev_error(netdev,
- "Could not append IFLA_IPTUN_REMOTE attribute: %s",
- strerror(-r));
- return r;
- }
-
- return r;
-}
-
-static int netdev_ip6tnl_fill_message_create(NetDev *netdev, Link *link, sd_rtnl_message *m) {
- Tunnel *t = IP6TNL(netdev);
- uint8_t proto;
- int r;
-
- assert(netdev);
- assert(link);
- assert(m);
- assert(t);
- assert(t->family == AF_INET6);
-
- r = sd_rtnl_message_append_u32(m, IFLA_IPTUN_LINK, link->ifindex);
- if (r < 0) {
- log_netdev_error(netdev,
- "Could not append IFLA_IPTUN_LINK attribute: %s",
- strerror(-r));
- return r;
- }
-
- r = sd_rtnl_message_append_in6_addr(m, IFLA_IPTUN_LOCAL, &t->local.in6);
- if (r < 0) {
- log_netdev_error(netdev,
- "Could not append IFLA_IPTUN_LOCAL attribute: %s",
- strerror(-r));
- return r;
- }
-
- r = sd_rtnl_message_append_in6_addr(m, IFLA_IPTUN_REMOTE, &t->remote.in6);
- if (r < 0) {
- log_netdev_error(netdev,
- "Could not append IFLA_IPTUN_REMOTE attribute: %s",
- strerror(-r));
- return r;
- }
-
- r = sd_rtnl_message_append_u8(m, IFLA_IPTUN_TTL, t->ttl);
- if (r < 0) {
- log_netdev_error(netdev,
- "Could not append IFLA_IPTUN_TTL attribute: %s",
- strerror(-r));
- return r;
- }
-
- switch (t->ip6tnl_mode) {
- case NETDEV_IP6_TNL_MODE_IP6IP6:
- proto = IPPROTO_IPV6;
- break;
- case NETDEV_IP6_TNL_MODE_IPIP6:
- proto = IPPROTO_IPIP;
- break;
- case NETDEV_IP6_TNL_MODE_ANYIP6:
- default:
- proto = 0;
- break;
- }
-
- r = sd_rtnl_message_append_u8(m, IFLA_IPTUN_PROTO, proto);
- if (r < 0) {
- log_netdev_error(netdev,
- "Could not append IFLA_IPTUN_MODE attribute: %s",
- strerror(-r));
- return r;
- }
-
- return r;
-}
-
-static int netdev_tunnel_verify(NetDev *netdev, const char *filename) {
- Tunnel *t = NULL;
-
- assert(netdev);
- assert(filename);
-
- switch (netdev->kind) {
- case NETDEV_KIND_IPIP:
- t = IPIP(netdev);
- break;
- case NETDEV_KIND_SIT:
- t = SIT(netdev);
- break;
- case NETDEV_KIND_GRE:
- t = GRE(netdev);
- break;
- case NETDEV_KIND_GRETAP:
- t = GRETAP(netdev);
- break;
- case NETDEV_KIND_IP6GRE:
- t = IP6GRE(netdev);
- break;
- case NETDEV_KIND_IP6GRETAP:
- t = IP6GRETAP(netdev);
- break;
- case NETDEV_KIND_VTI:
- t = VTI(netdev);
- break;
- case NETDEV_KIND_IP6TNL:
- t = IP6TNL(netdev);
- break;
- default:
- assert_not_reached("Invalid tunnel kind");
- }
-
- assert(t);
-
- if (t->remote.in.s_addr == INADDR_ANY) {
- log_warning("Tunnel without remote address configured in %s. Ignoring", filename);
- return -EINVAL;
- }
-
- if (t->family != AF_INET && t->family != AF_INET6) {
- log_warning("Tunnel with invalid address family configured in %s. Ignoring", filename);
- return -EINVAL;
- }
-
- if (netdev->kind == NETDEV_KIND_IP6TNL) {
- if (t->ip6tnl_mode == _NETDEV_IP6_TNL_MODE_INVALID) {
- log_warning("IP6 Tunnel without mode configured in %s. Ignoring", filename);
- return -EINVAL;
- }
- }
-
- return 0;
-}
-
-int config_parse_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) {
- Tunnel *t = userdata;
- union in_addr_union *addr = data, buffer;
- int r, f;
-
- assert(filename);
- assert(lvalue);
- assert(rvalue);
- assert(data);
-
- r = in_addr_from_string_auto(rvalue, &f, &buffer);
- if (r < 0) {
- log_syntax(unit, LOG_ERR, filename, line, EINVAL, "Tunnel address is invalid, ignoring assignment: %s", rvalue);
- return 0;
- }
-
- if (t->family != AF_UNSPEC && t->family != f) {
- log_syntax(unit, LOG_ERR, filename, line, EINVAL, "Tunnel addresses incompatible, ignoring assignment: %s", rvalue);
- return 0;
- }
-
- t->family = f;
- *addr = buffer;
-
- return 0;
-}
-
-static void ipip_init(NetDev *n) {
- Tunnel *t = IPIP(n);
-
- assert(n);
- assert(t);
-
- t->pmtudisc = true;
-}
-
-static void sit_init(NetDev *n) {
- Tunnel *t = SIT(n);
-
- assert(n);
- assert(t);
-
- t->pmtudisc = true;
-}
-
-static void vti_init(NetDev *n) {
- Tunnel *t = VTI(n);
-
- assert(n);
- assert(t);
-
- t->pmtudisc = true;
-}
-
-static void gre_init(NetDev *n) {
- Tunnel *t;
-
- assert(n);
-
- if (n->kind == NETDEV_KIND_GRE)
- t = GRE(n);
- else
- t = GRETAP(n);
-
- assert(t);
-
- t->pmtudisc = true;
-}
-
-static void ip6gre_init(NetDev *n) {
- Tunnel *t;
-
- assert(n);
-
- if (n->kind == NETDEV_KIND_IP6GRE)
- t = IP6GRE(n);
- else
- t = IP6GRETAP(n);
-
- assert(t);
-
- t->ttl = DEFAULT_TNL_HOP_LIMIT;
-}
-
-static void ip6tnl_init(NetDev *n) {
- Tunnel *t = IP6TNL(n);
-
- assert(n);
- assert(t);
-
- t->ttl = DEFAULT_TNL_HOP_LIMIT;
- t->encap_limit = IPV6_DEFAULT_TNL_ENCAP_LIMIT;
- t->ip6tnl_mode = _NETDEV_IP6_TNL_MODE_INVALID;
-}
-
-const NetDevVTable ipip_vtable = {
- .object_size = sizeof(Tunnel),
- .init = ipip_init,
- .sections = "Match\0NetDev\0Tunnel\0",
- .fill_message_create = netdev_ipip_fill_message_create,
- .create_type = NETDEV_CREATE_STACKED,
- .config_verify = netdev_tunnel_verify,
-};
-
-const NetDevVTable sit_vtable = {
- .object_size = sizeof(Tunnel),
- .init = sit_init,
- .sections = "Match\0NetDev\0Tunnel\0",
- .fill_message_create = netdev_sit_fill_message_create,
- .create_type = NETDEV_CREATE_STACKED,
- .config_verify = netdev_tunnel_verify,
-};
-
-const NetDevVTable vti_vtable = {
- .object_size = sizeof(Tunnel),
- .init = vti_init,
- .sections = "Match\0NetDev\0Tunnel\0",
- .fill_message_create = netdev_vti_fill_message_create,
- .create_type = NETDEV_CREATE_STACKED,
- .config_verify = netdev_tunnel_verify,
-};
-
-const NetDevVTable gre_vtable = {
- .object_size = sizeof(Tunnel),
- .init = gre_init,
- .sections = "Match\0NetDev\0Tunnel\0",
- .fill_message_create = netdev_gre_fill_message_create,
- .create_type = NETDEV_CREATE_STACKED,
- .config_verify = netdev_tunnel_verify,
-};
-
-const NetDevVTable gretap_vtable = {
- .object_size = sizeof(Tunnel),
- .init = gre_init,
- .sections = "Match\0NetDev\0Tunnel\0",
- .fill_message_create = netdev_gre_fill_message_create,
- .create_type = NETDEV_CREATE_STACKED,
- .config_verify = netdev_tunnel_verify,
-};
-
-const NetDevVTable ip6gre_vtable = {
- .object_size = sizeof(Tunnel),
- .init = ip6gre_init,
- .sections = "Match\0NetDev\0Tunnel\0",
- .fill_message_create = netdev_ip6gre_fill_message_create,
- .create_type = NETDEV_CREATE_STACKED,
- .config_verify = netdev_tunnel_verify,
-};
-
-const NetDevVTable ip6gretap_vtable = {
- .object_size = sizeof(Tunnel),
- .init = ip6gre_init,
- .sections = "Match\0NetDev\0Tunnel\0",
- .fill_message_create = netdev_ip6gre_fill_message_create,
- .create_type = NETDEV_CREATE_STACKED,
- .config_verify = netdev_tunnel_verify,
-};
-
-const NetDevVTable ip6tnl_vtable = {
- .object_size = sizeof(Tunnel),
- .init = ip6tnl_init,
- .sections = "Match\0NetDev\0Tunnel\0",
- .fill_message_create = netdev_ip6tnl_fill_message_create,
- .create_type = NETDEV_CREATE_STACKED,
- .config_verify = netdev_tunnel_verify,
-};
~ianmdlvl / elogind.git / blobdiff