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// Based on proto/rip/rip.c
#define LOCAL_DEBUG
#include <stdio.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/un.h>
#include <unistd.h>
#include "lib/lists.h"
#include "lib/ip.h"
#include "lib/tunnel_encaps.h"
#include "nest/protocol.h"
#include "nest/iface.h"
#include "sysdep/linux/wireguard.h"
#include "sysdep/unix/unix.h"
#include "sysdep/unix/wg_user.h"
#include "wireguard.h"
static ip_addr allowedip_to_ipa(struct wg_allowedip *allowedip);
static int wg_format_tunnel_encap(const struct te_encap *encap, byte *buf, uint size);
static
int get_device(struct wg_proto *p, wg_device **pdev, const char *device_name)
{
struct wg_config *c = (struct wg_config *) p->p.cf;
/* if (has_user_space(p)) */
/* return user_get_device(p, dev, device_name); */
/* else */
/* return wg_get_device(dev, device_name); */
if (p->dev)
{
wg_free_device(p->dev);
p->dev = NULL;
}
wg_device *dev = calloc(1, sizeof(wg_device));
strncpy(dev->name, device_name, sizeof(dev->name));
// dev->flags = WGDEVICE_REPLACE_PEERS;
if (c->private_key)
{
dev->flags |= WGDEVICE_HAS_PRIVATE_KEY | WGDEVICE_HAS_PUBLIC_KEY;
memcpy(dev->private_key, c->private_key, sizeof(wg_key));
wg_generate_public_key(dev->public_key, c->private_key);
}
if (c->listen_port)
{
dev->flags |= WGDEVICE_HAS_LISTEN_PORT;
dev->listen_port = c->listen_port;
}
DBG("listen port %d\n", c->listen_port);
struct peer_config *pc = NULL;
WALK_LIST(pc,c->peers)
{
wg_peer *peer = calloc(1, sizeof(wg_peer));
if (!dev->first_peer)
dev->first_peer = peer;
if (dev->last_peer)
dev->last_peer->next_peer = peer;
dev->last_peer = peer;
peer->flags = WGPEER_REPLACE_ALLOWEDIPS;
if (pc->public_key)
{
peer->flags = WGPEER_HAS_PUBLIC_KEY;
memcpy(peer->public_key, pc->public_key, sizeof(wg_key));
}
peer->next_peer = NULL;
if (!ip6_equal(pc->endpoint, IPA_NONE))
sockaddr_fill((sockaddr*)&peer->endpoint.addr,
ipa_is_ip4(pc->endpoint) ? AF_INET : AF_INET6,
pc->endpoint, NULL, pc->remote_port);
peer->first_allowedip = NULL;
peer->last_allowedip = NULL;
struct wg_allowedip *aip;
wg_for_each_allowedip(pc->allowedips, aip)
{
struct wg_allowedip *new_aip = malloc(sizeof(struct wg_allowedip));
memcpy(new_aip, aip, sizeof(struct wg_allowedip));
new_aip->next_allowedip = NULL;
if (!peer->first_allowedip)
peer->first_allowedip = new_aip;
if (peer->last_allowedip)
peer->last_allowedip->next_allowedip = new_aip;
peer->last_allowedip = new_aip;
}
}
*pdev = dev;
return 0;
}
static int
set_device(struct wg_proto *p)
{
struct wg_config *c = (struct wg_config *) p->p.cf;
if (wg_has_userspace(c->ifname))
return wg_user_set_device(p->p.pool, c->ifname, p->dev);
else
{
WG_TRACE(D_EVENTS, "WG: wg_set_device");
return wg_set_device(p->dev);
}
}
static void
wg_init_entry(struct fib *f UNUSED, void *e_)
{
struct wg_entry *e UNUSED = e_;
// DBG("wg_init_entry\n");
memset(e, 0, sizeof(struct wg_entry) - sizeof(struct fib_node));
}
static void
wg_postconfig(struct proto_config *C UNUSED)
{
struct wg_config *c = (struct wg_config *) C;
DBG("postconfig %d\n", c->tunnel_type);
}
static void
wg_if_notify(struct proto *P, unsigned flags, struct iface *i)
{
struct wg_proto *p = (struct wg_proto *) P;
struct wg_config *c = (struct wg_config *) P->cf;
DBG("WG: if_notify %p %s %d %s\n", i, i->name, flags, c->ifname);
if (c->ifname && !strcmp(i->name, c->ifname))
{
DBG("WG: found ifname\n");
p->iface = i;
}
if (flags & IF_CHANGE_UP)
{
DBG("WG: IF_CHANGE_UP %s\n", i->name);
int res = set_device(p);
WG_TRACE(D_EVENTS, "WG: wg_set_device %d", res);
}
}
static void
dump(void *ptr, size_t len)
{
unsigned char *data = ptr;
for (size_t i=0; i<len; i++)
{
fprintf(stderr, "%02x ", data[i]);
}
fprintf(stderr, "\n");
}
static void
dump_peer(struct wg_peer *peer)
{
wg_key_b64_string base64;
wg_key_to_base64(base64, peer->public_key);
DBG("WG: peer %s\n", base64);
struct wg_allowedip *allowedip = NULL;
wg_for_each_allowedip(peer, allowedip)
{
ip_addr ip = allowedip_to_ipa(allowedip);
DBG("allowedip %I/%d\n", ip, allowedip->cidr);
}
}
static wg_peer *
add_peer(wg_device *dev, const wg_key *pubkey)
{
struct wg_peer *peer = malloc(sizeof(struct wg_peer));
memset(peer, 0, sizeof(struct wg_peer));
peer->flags = WGPEER_HAS_PUBLIC_KEY;
memcpy(peer->public_key, pubkey, sizeof(wg_key));
if (dev->first_peer && dev->last_peer)
dev->last_peer->next_peer = peer;
else
dev->first_peer = peer;
dev->last_peer = peer;
return peer;
}
static void
remove_marked_peer(struct wg_proto *p)
{
wg_device *dev = p->dev;
struct wg_peer *peer = NULL;
struct wg_peer *prevpeer = NULL;
WG_TRACE(D_EVENTS, "WG: remove_marked_peer");
wg_for_each_peer(dev, peer)
{
if (peer->flags & WGPEER_REMOVE_ME)
{
if (!prevpeer)
{
DBG("WG: remove first peer\n");
dev->first_peer = peer->next_peer;
if (dev->last_peer == peer)
{
dev->last_peer = NULL;
dev->first_peer = NULL;
}
}
else
{
DBG("WG: remove middle peer\n");
// Remove
if (dev->last_peer == peer)
dev->last_peer = prevpeer;
prevpeer->next_peer = peer->next_peer;
}
free(peer);
return;
}
prevpeer = peer;
}
log(L_WARN "WG: marked peer not found");
}
static int
set_peer_tunnel_ep(struct wg_proto *p, wg_peer *peer, ip_addr tunnel_ep_addr, u16 udp_dest_port)
{
if (udp_dest_port != 0 && ipa_nonzero(tunnel_ep_addr) )
{
if (ipa_is_ip4(tunnel_ep_addr))
{
WG_TRACE(D_EVENTS, "WG: found ip4 ep");
peer->endpoint.addr4.sin_family = AF_INET;
put_ip4(&peer->endpoint.addr4.sin_addr.s_addr, ipa_to_ip4(tunnel_ep_addr));
put_u16(&peer->endpoint.addr4.sin_port, udp_dest_port);
}
else
{
WG_TRACE(D_EVENTS, "WG: found ip6 ep");
peer->endpoint.addr6.sin6_family = AF_INET6;
put_ip6(&peer->endpoint.addr6.sin6_addr, ipa_to_ip6(tunnel_ep_addr));
put_u16(&peer->endpoint.addr6.sin6_port, udp_dest_port);
}
}
return 0;
}
static ip_addr
allowedip_to_ipa(struct wg_allowedip *allowedip)
{
switch (allowedip->family)
{
case AF_INET:
return ipa_from_in4(allowedip->ip4);
break;
case AF_INET6:
return ipa_from_in6(allowedip->ip6);
}
return IPA_NONE;
}
static void
init_allowed_ip(struct wg_allowedip *allowedip, u8 net_type, struct network *n)
{
memset(allowedip, 0, sizeof(struct wg_allowedip));
if (net_type == NET_IP4)
{
allowedip->family = AF_INET;
allowedip->ip4.s_addr = ip4_to_u32(ip4_hton(net4_prefix(n->n.addr)));
}
else if (net_type == NET_IP6)
{
allowedip->family = AF_INET6;
ip6_addr addr = ip6_hton(net6_prefix(n->n.addr));
memcpy(allowedip->ip6.s6_addr, &addr, 16);
}
allowedip->cidr = net_pxlen(n->n.addr);
}
static struct wg_allowedip *
create_allowed_ip_network(u8 net_type, struct network *n)
{
struct wg_allowedip *allowedip = malloc(sizeof(struct wg_allowedip));
init_allowed_ip(allowedip, net_type, n);
return allowedip;
}
static int
add_allowed_ip(struct wg_allowedip *allowedip, wg_peer *peer)
{
if (peer->first_allowedip && peer->last_allowedip)
peer->last_allowedip->next_allowedip = allowedip;
else
peer->first_allowedip = allowedip;
peer->last_allowedip = allowedip;
return 0;
}
static bool
remove_allowed_ip(wg_peer *peer, struct wg_allowedip *allowedip)
{
struct wg_allowedip *ip = NULL;
struct wg_allowedip *previp = NULL;
wg_for_each_allowedip(peer, ip)
{
if (allowedip->family != ip->family)
{
DBG("WG: family no match\n");
previp = ip;
continue;
}
if (allowedip->cidr != ip->cidr)
{
DBG("WG: cidr no match\n");
previp = ip;
continue;
}
if (memcmp(&allowedip->ip6, &ip->ip6, sizeof(struct in6_addr)))
{
DBG("WG: ip no match\n");
#if defined(LOCAL_DEBUG) || defined(GLOBAL_DEBUG)
dump(&allowedip->ip6, sizeof(struct in6_addr));
dump(&ip->ip6, sizeof(struct in6_addr));
#endif
previp = ip;
continue;
}
DBG("WG: found ip\n");
if (!previp)
{
DBG("WG: remove first\n");
peer->first_allowedip = ip->next_allowedip;
if (peer->last_allowedip == ip)
{
peer->last_allowedip = NULL;
peer->first_allowedip = NULL;
}
}
else
{
DBG("WG: remove middle\n");
// Remove
if (peer->last_allowedip == ip)
peer->last_allowedip = previp;
previp->next_allowedip = ip->next_allowedip;
}
free(ip);
return true;
}
return false;
}
struct wg_tunnel_encap {
int requested_type;
struct te_encap encap;
struct te_endpoint ep;
u32 color;
u16 udp_dest_port;
u16 flags;
const wg_key *pubkey;
};
static int wg_visitor_format_tlv(int type, struct te_context *ctx)
{
struct wg_tunnel_encap *info = ctx->opaque;
info->flags = 0;
return info->requested_type == type;
}
static int wg_visitor_format_encap(const struct te_encap *encap, struct te_context *ctx)
{
struct wg_tunnel_encap *info = ctx->opaque;
if (encap->length == sizeof(wg_key))
info->pubkey = encap->data;
else if (encap->length == 4 + sizeof(wg_key))
info->pubkey = encap->data + 4;
else
return -1;
info->encap = *encap;
info->flags |= FLAG_BGP_TUNNEL_ENCAP_A_SUB_TLV_ENCAP;
return 0;
}
static int wg_visitor_format_ep(const struct te_endpoint *ep, struct te_context *ctx)
{
struct wg_tunnel_encap *info = ctx->opaque;
info->ep = *ep;
info->flags |= FLAG_BGP_TUNNEL_ENCAP_A_SUB_TLV_TUNNEL_EP;
return 0;
}
static int wg_visitor_format_color(u32 color, struct te_context *ctx)
{
struct wg_tunnel_encap *info = ctx->opaque;
info->color = color;
info->flags |= FLAG_BGP_TUNNEL_ENCAP_A_SUB_TLV_COLOR;
return 0;
}
static int wg_visitor_format_udp_dest_port(u16 udp_dest_port, struct te_context *ctx)
{
struct wg_tunnel_encap *info = ctx->opaque;
info->udp_dest_port = udp_dest_port;
info->flags |= FLAG_BGP_TUNNEL_ENCAP_A_SUB_TLV_UDP_DEST_PORT;
return 0;
}
static
int wg_decode_tunnel_encap(const struct adata *a, struct wg_tunnel_encap *encap)
{
struct te_visitor wg_visitor = {
.visit_tlv = wg_visitor_format_tlv,
//.visit_subtlv = wg_visitor_format_subtlv,
.visit_encap = wg_visitor_format_encap,
.visit_ep = wg_visitor_format_ep,
.visit_color = wg_visitor_format_color,
.visit_udp_dest_port = wg_visitor_format_udp_dest_port,
};
return walk_tunnel_encap(a, &wg_visitor, encap);
}
static void
wg_rt_notify(struct proto *P, struct channel *CH, struct network *n,
struct rte *new, struct rte *old UNUSED)
{
struct wg_proto *p = (struct wg_proto *) P;
struct wg_config *c = (struct wg_config *) P->cf;
struct wg_channel *ch = (struct wg_channel *) CH;
struct iface *iface = NULL;
const char *ifname = NULL;
// DBG("WG: notify\n");
if (new)
{
struct nexthop *nh = &new->attrs->nh;
iface = nh->iface;
ifname = iface ? iface->name : NULL;
if (iface && iface == p->iface)
{
struct eattr *t;
DBG("WG: found %p ifname %s iface %I %p\n", new->attrs, ifname, nh->gw, nh->next);
struct hostentry *he = new->attrs->hostentry;
DBG("WG: he %p src %p\n", he, he?he->src:NULL);
if (he && he->src)
{
struct eattr *t = ea_find(he->src->eattrs, EA_CODE(PROTOCOL_BGP, BA_TUNNEL_ENCAP));
DBG("WG: he %p %I %I %p %p %I\n", t, he->addr, he->link, he->next, he->src->hostentry, he->src->nh.gw);
}
DBG("WG: notify new %d %N\n",
new->attrs->dest, n->n.addr);
bool is_tunnel_ep = false;
struct wg_tunnel_encap encap = {.requested_type=c->tunnel_type};
t = ea_find(new->attrs->eattrs, EA_CODE(PROTOCOL_BGP, BA_TUNNEL_ENCAP));
if (t)
{
WG_TRACE(D_EVENTS, "WG: Set is tunnel");
is_tunnel_ep = true;
}
if (!t && he && he->src)
{
t = ea_find(he->src->eattrs, EA_CODE(PROTOCOL_BGP, BA_TUNNEL_ENCAP));
}
if (t && t->u.ptr && wg_decode_tunnel_encap(t->u.ptr, &encap) == 0 && (encap.flags & FLAG_BGP_TUNNEL_ENCAP_A_SUB_TLV_ENCAP))
{
bool add_ip = true;
struct wg_entry *en = fib_find(&ch->rtable, n->n.addr);
if (en)
{
if (memcpy(en->public_key, encap.pubkey, sizeof(wg_key) == 0))
{
add_ip = false;
}
}
else
{
struct wg_entry *en = fib_get(&ch->rtable, n->n.addr);
en->is_tunnel_ep = is_tunnel_ep;
memcpy(en->public_key, encap.pubkey, sizeof(wg_key));
}
WG_TRACE(D_EVENTS, "WG: Attr %x %x %d", t->flags, t->type, t->u.ptr->length);
struct wg_device *dev = p->dev;
if (dev != NULL)
{
bool dirty = false;
bool found = false;
struct wg_peer *peer = NULL;
wg_for_each_peer(dev, peer)
{
// Look for public key
size_t len = 32; // FIXME
// MIN(32, t->u.ptr->length)
if (memcmp(peer->public_key, encap.pubkey, len) != 0)
{
WG_TRACE(D_EVENTS, "WG: Not found");
continue;
}
WG_TRACE(D_EVENTS, "WG: Found");
found = true;
dirty = true;
break;
}
if (!found)
{
peer = add_peer(dev, encap.pubkey);
}
dump_peer(peer);
if (is_tunnel_ep && (encap.flags & FLAG_BGP_TUNNEL_ENCAP_A_SUB_TLV_TUNNEL_EP) && (encap.flags & FLAG_BGP_TUNNEL_ENCAP_A_SUB_TLV_UDP_DEST_PORT))
set_peer_tunnel_ep(p, peer, encap.ep.ip, encap.udp_dest_port);
if (add_ip)
{
struct wg_allowedip *allowed_n =
create_allowed_ip_network(ch->c.net_type, n);
add_allowed_ip(allowed_n, peer);
}
dirty = true;
if (dirty)
{
int res = set_device(p);
WG_TRACE(D_EVENTS, "WG: wg_set_device %d", res);
}
}
}
else
{
WG_TRACE(D_EVENTS, "WG: No Attr");
}
// old_metric = en->valid ? en->metric : -1;
// en->valid = RIP_ENTRY_VALID;
// en->metric = rt_metric;
// en->tag = rt_tag;
// en->from = (new->attrs->src->proto == P) ? new->u.rip.from : NULL;
// en->iface = new->attrs->iface;
// en->next_hop = new->attrs->gw;
}
}
else
{
DBG("WG: notify withdraw %N\n",
n->n.addr);
/* Withdraw */
struct wg_entry *en = fib_find(&ch->rtable, n->n.addr);
if (!en)
{ // || en->valid != RIP_ENTRY_VALID)
DBG("WG: fib not found\n");
return;
}
struct wg_device *dev = p->dev;
if (dev != NULL)
{
bool marked_peer = false;
bool found = false;
struct wg_peer *peer = NULL;
wg_for_each_peer(dev, peer)
{
if (en->is_tunnel_ep && !marked_peer)
{
WG_TRACE(D_EVENTS, "WG: Is tunnel");
if (memcmp(peer->public_key, en->public_key, sizeof(wg_key)) == 0)
{
struct peer_config *pc = NULL;
bool remove_me = true;
WALK_LIST(pc,c->peers)
{
wg_key pc_key;
if (pc->public_key)
{
memcpy(pc_key, pc->public_key, sizeof(wg_key));
if (memcmp(pc_key, peer->public_key, sizeof(wg_key)) == 0)
{
/* Don't remove preconfigured peer */
remove_me = false;
break;
}
}
}
if (remove_me)
{
WG_TRACE(D_EVENTS, "WG: Remove peer");
peer->flags |= WGPEER_REMOVE_ME;
marked_peer = true;
continue;
}
}
}
// Remove from all peers
found = true;
if (found)
{
struct wg_allowedip *allowedip = alloca(sizeof(struct wg_allowedip));
init_allowed_ip(allowedip, ch->c.net_type, n);
dump_peer(peer);
if (remove_allowed_ip(peer, allowedip))
{
ip_addr ip = allowedip_to_ipa(allowedip);
WG_TRACE(D_EVENTS, "WG: removed %I/%d", ip, allowedip->cidr);
peer->flags |= WGPEER_REPLACE_ALLOWEDIPS;
dump_peer(peer);
}
}
}
if (marked_peer)
{
remove_marked_peer(p);
}
int res = set_device(p);
WG_TRACE(D_EVENTS, "WG: wg_set_device %d", res);
fib_delete(&ch->rtable, en);
en = NULL;
/*
old_metric = en->metric;
en->valid = RIP_ENTRY_STALE;
en->metric = p->infinity;
en->tag = 0;
en->from = NULL;
en->iface = NULL;
en->next_hop = IPA_NONE;
*/
}
}
// TRACE(D_EVENTS, "wg notify %s %s", src_table->name, ifname?ifname:"(null)");
}
static void
wg_reload_routes(struct channel *C)
{
struct wg_proto *p UNUSED = (struct wg_proto *) C->proto;
DBG("reload routes\n");
// TODO
// WALK_LIST(c, p->channels)
// channel_request_feeding(c);
}
static int
wg_format_tunnel_encap_type_0(const struct te_encap *encap, byte *buf, uint size)
{
byte *pos = buf;
wg_key_b64_string base64;
wg_key_to_base64(base64, encap->data);
int l = bsnprintf(pos, size, "%s", base64);
ADVANCE(pos, size, l);
return pos - buf;
}
static int
wg_format_tunnel_encap_type_1(const struct te_encap *encap, byte *buf, uint size)
{
byte *pos = buf;
if (encap->length != 4 + sizeof(wg_key))
{
DBG("wg_format_tunnel_encap: bad length %d\n", encap->length);
return -1;
}
uint32_t flags = ntohl(((uint32_t*)encap->data)[0]);
if (flags != 0) {
DBG("wg_format_tunnel_encap: unsupported flags %08x\n", encap->length);
return -1;
}
wg_key_b64_string base64;
wg_key_to_base64(base64, ((byte*)encap->data) + 4);
int l = bsnprintf(pos, size, "%s", base64);
ADVANCE(pos, size, l);
return pos - buf;
}
static int
wg_format_tunnel_encap(const struct te_encap *encap, byte *buf, uint size)
{
if (encap->length == sizeof(wg_key))
{
return wg_format_tunnel_encap_type_0(encap, buf, size);
}
else
{
return wg_format_tunnel_encap_type_1(encap, buf, size);
}
}
static struct proto *
wg_init(struct proto_config *C)
{
struct wg_config *c UNUSED = (struct wg_config *) C;
struct proto *P = proto_new(C);
struct wg_proto *p UNUSED = (struct wg_proto *) P;
DBG("init\n");
P->if_notify = wg_if_notify;
P->rt_notify = wg_rt_notify;
P->reload_routes = wg_reload_routes;
// P->accept_ra_types = RA_ANY;
/* Add all channels */
struct wg_channel_config *cc;
WALK_LIST(cc, C->channels)
proto_add_channel(P, &cc->c);
return P;
}
static int
wg_start(struct proto *P)
{
struct wg_config *cf = (struct wg_config *) P->cf;
struct wg_proto *p = (struct wg_proto *) P;
WG_TRACE(D_EVENTS, "WG: start");
register_format_tunnel_encap(cf->tunnel_type, "WireGuard", wg_format_tunnel_encap);
if (get_device(p, &p->dev, cf->ifname) >= 0)
{
int res = set_device(p);
WG_TRACE(D_EVENTS, "WG: wg_set_device %d", res);
}
struct wg_channel *ch;
WALK_LIST(ch,p->p.channels)
{
fib_init(&ch->rtable, P->pool, ch->c.net_type, sizeof(struct wg_entry),
OFFSETOF(struct wg_entry, n), 0, wg_init_entry);
}
return PS_UP;
}
static int
wg_shutdown(struct proto *P)
{
struct wg_config *cf = (struct wg_config*)P->cf;
struct wg_proto *p = (struct wg_proto*)P;
WG_TRACE(D_EVENTS, "WG: wg_shutdown");
if (get_device(p, &p->dev, cf->ifname) >= 0)
{
int res = set_device(p);
WG_TRACE(D_EVENTS, "WG: flush wg_set_device %d", res);
}
unregister_format_tunnel_encap(cf->tunnel_type, wg_format_tunnel_encap);
return PS_DOWN;
}
static void
wg_dump(struct proto *P)
{
struct wg_proto *p = (struct wg_proto *) P;
int i;
i = 0;
struct wg_channel *ch;
WALK_LIST(ch,p->p.channels)
{
FIB_WALK(&ch->rtable, struct wg_entry, en)
{
// struct wg_entry *en = (struct wg_entry *) e;
DBG("WG: entry #%d:\n",
i++);
}
FIB_WALK_END;
}
struct wg_peer *peer = NULL;
WG_TRACE(D_EVENTS, "WG: dump peers");
wg_for_each_peer(p->dev, peer)
{
dump_peer(peer);
}
}
static void
wg_copy_config(struct proto_config *DEST, struct proto_config *SRC)
{
struct wg_config *dest = (struct wg_config *)DEST;
struct wg_config *src = (struct wg_config *)SRC;
dest->ifname = src->ifname;
dest->socket_path = src->socket_path;
dest->private_key = src->private_key;
dest->listen_port = src->listen_port;
struct peer_config *spc = NULL;
WALK_LIST(spc,src->peers)
{
struct peer_config *dpc = cfg_allocz(sizeof(struct peer_config));
dpc->public_key = spc->public_key;
dpc->listen_port = spc->listen_port;
dpc->endpoint = spc->endpoint;
dpc->remote_port = spc->remote_port;
dpc->allowedips = spc->allowedips;
add_tail(&dest->peers, (node*)spc);
}
}
struct peer_config *peer_new(struct wg_config *c)
{
struct peer_config *pc = cfg_allocz(sizeof(struct peer_config));
DBG("peer_new %p\n", pc);
add_tail(&c->peers, (node*)pc);
return pc;
}
static void
wg_channel_init(struct channel *CH, struct channel_config *CHC UNUSED)
{
struct proto *P = CH->proto;
struct wg_proto *p = (struct wg_proto *) P;
/* Create new instance */
WG_TRACE(D_EVENTS, "WG: wg_channel_init");
}
static int
wg_channel_reconfigure(struct channel *CH, struct channel_config *CHC UNUSED,
int *import_changed UNUSED, int *export_changed UNUSED)
{
struct proto *P = CH->proto;
struct wg_proto *p = (struct wg_proto *) P;
/* Try to reconfigure instance, returns success */
WG_TRACE(D_EVENTS, "WG: wg_channel_reconfigure");
return 1;
}
static int
wg_channel_start(struct channel *CH)
{
struct wg_channel *ch UNUSED = (struct wg_channel*)CH;
struct proto *P = CH->proto;
struct wg_proto *p = (struct wg_proto *) P;
/* Start the instance */
WG_TRACE(D_EVENTS, "WG: wg_channel_start");
#if 0
fib_init(&ch->rtable, P->pool, ch->c.net_type, sizeof(struct wg_entry),
OFFSETOF(struct wg_entry, n), 0, wg_init_entry);
#endif
return 1;
}
static void
wg_channel_shutdown(struct channel *CH)
{
struct wg_channel *ch UNUSED = (struct wg_channel*)CH;
struct proto *P = CH->proto;
struct wg_proto *p = (struct wg_proto *) P;
/* Stop the instance */
WG_TRACE(D_EVENTS, "WG: wg_channel_shutdown");
}
static void
wg_channel_cleanup(struct channel *CH)
{
struct wg_channel *ch UNUSED = (struct wg_channel*)CH;
struct proto *P = CH->proto;
struct wg_proto *p = (struct wg_proto *) P;
/* Channel finished flush */
WG_TRACE(D_EVENTS, "WG: wg_channel_cleanup");
}
const struct channel_class channel_wg = {
.channel_size = sizeof(struct wg_channel),
.config_size = sizeof(struct wg_channel_config),
.init = wg_channel_init,
.start = wg_channel_start,
.shutdown = wg_channel_shutdown,
.cleanup = wg_channel_cleanup,
.reconfigure = wg_channel_reconfigure,
};
struct protocol proto_wireguard = {
.name = "Wireguard",
.template = "wg%d",
.class = PROTOCOL_WG,
.channel_mask = NB_IP,
.proto_size = sizeof(struct wg_proto),
.config_size = sizeof(struct wg_config),
.postconfig = wg_postconfig,
.init = wg_init,
.start = wg_start,
.shutdown = wg_shutdown,
.dump = wg_dump,
.copy_config = wg_copy_config,
/* .multitable = 1,
.preference = DEF_PREF_PIPE,
.cleanup = wg_cleanup,
.reconfigure = wg_reconfigure,
.get_status = wg_get_status,
.show_proto_info = wg_show_proto_info*/
};
void wireguard_build(void)
{
proto_build(&proto_wireguard);
}
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