ipc: openbsd: switch to array ioctl interface
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
This commit is contained in:
Jason A. Donenfeld
parent
0cfde946b1
commit
56cb39fb22
2 changed files with 79 additions and 88 deletions
82
src/ipc.c
82
src/ipc.c
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@ -986,12 +986,12 @@ static int kernel_get_device(struct wgdevice **device, const char *iface)
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goto out;
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if (last_size >= wgdata.wgd_size)
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break;
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wgdata.wgd_mem = realloc(wgdata.wgd_mem, wgdata.wgd_size);
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if (!wgdata.wgd_mem)
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wgdata.wgd_interface = realloc(wgdata.wgd_interface, wgdata.wgd_size);
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if (!wgdata.wgd_interface)
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goto out;
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}
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wg_iface = wgdata.wgd_mem;
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wg_iface = wgdata.wgd_interface;
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dev = calloc(1, sizeof(*dev));
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if (!dev)
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goto out;
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@ -1017,7 +1017,8 @@ static int kernel_get_device(struct wgdevice **device, const char *iface)
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dev->flags |= WGDEVICE_HAS_PRIVATE_KEY;
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}
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for (wg_peer = wg_iface->i_peers; wg_peer; wg_peer = wg_peer->p_next) {
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wg_peer = &wg_iface->i_peers[0];
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for (size_t i = 0; i < wg_iface->i_peers_count; ++i) {
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peer = calloc(1, sizeof(*peer));
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if (!peer)
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goto out;
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@ -1052,7 +1053,8 @@ static int kernel_get_device(struct wgdevice **device, const char *iface)
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peer->last_handshake_time.tv_sec = wg_peer->p_last_handshake.tv_sec;
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peer->last_handshake_time.tv_nsec = wg_peer->p_last_handshake.tv_nsec;
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for (wg_aip = wg_peer->p_aips; wg_aip; wg_aip = wg_aip->a_next) {
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wg_aip = &wg_peer->p_aips[0];
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for (size_t j = 0; j < wg_peer->p_aips_count; ++j) {
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aip = calloc(1, sizeof(*aip));
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if (!aip)
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goto out;
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@ -1071,55 +1073,63 @@ static int kernel_get_device(struct wgdevice **device, const char *iface)
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memcpy(&aip->ip6, &wg_aip->a_ipv6, sizeof(aip->ip6));
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aip->cidr = wg_aip->a_cidr;
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}
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++wg_aip;
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}
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wg_peer = (struct wg_peer_io *)wg_aip;
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}
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*device = dev;
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errno = 0;
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out:
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ret = -errno;
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free(wgdata.wgd_mem);
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free(wgdata.wgd_interface);
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return ret;
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}
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static int kernel_set_device(struct wgdevice *dev)
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{
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struct wg_data_io wgdata = { .wgd_size = 0 };
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struct wg_interface_io wg_iface = { 0 };
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struct wg_peer_io *wg_peer, *wg_peer_next;
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struct wg_aip_io *wg_aip, *wg_aip_next;
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struct wg_data_io wgdata = { .wgd_size = sizeof(struct wg_interface_io) };
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struct wg_interface_io *wg_iface;
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struct wg_peer_io *wg_peer;
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struct wg_aip_io *wg_aip;
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struct wgpeer *peer;
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struct wgallowedip *aip;
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int s = get_dgram_socket(), ret;
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size_t peer_count, aip_count;
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if (s < 0)
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return -errno;
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for_each_wgpeer(dev, peer) {
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wgdata.wgd_size += sizeof(struct wg_peer_io);
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for_each_wgallowedip(peer, aip)
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wgdata.wgd_size += sizeof(struct wg_aip_io);
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}
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wg_iface = wgdata.wgd_interface = calloc(1, wgdata.wgd_size);
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if (!wgdata.wgd_interface)
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return -errno;
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strlcpy(wgdata.wgd_name, dev->name, sizeof(wgdata.wgd_name));
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wgdata.wgd_mem = &wg_iface;
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if (dev->flags & WGDEVICE_HAS_PRIVATE_KEY) {
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memcpy(wg_iface.i_private, dev->private_key, sizeof(wg_iface.i_private));
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wg_iface.i_flags |= WG_INTERFACE_HAS_PRIVATE;
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memcpy(wg_iface->i_private, dev->private_key, sizeof(wg_iface->i_private));
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wg_iface->i_flags |= WG_INTERFACE_HAS_PRIVATE;
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}
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if (dev->flags & WGDEVICE_HAS_LISTEN_PORT) {
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wg_iface.i_port = dev->listen_port;
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wg_iface.i_flags |= WG_INTERFACE_HAS_PORT;
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wg_iface->i_port = dev->listen_port;
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wg_iface->i_flags |= WG_INTERFACE_HAS_PORT;
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}
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if (dev->flags & WGDEVICE_HAS_FWMARK) {
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wg_iface.i_rtable = dev->fwmark;
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wg_iface.i_flags |= WG_INTERFACE_HAS_RTABLE;
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wg_iface->i_rtable = dev->fwmark;
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wg_iface->i_flags |= WG_INTERFACE_HAS_RTABLE;
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}
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if (dev->flags & WGDEVICE_REPLACE_PEERS)
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wg_iface.i_flags |= WG_INTERFACE_REPLACE_PEERS;
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wg_iface->i_flags |= WG_INTERFACE_REPLACE_PEERS;
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peer_count = 0;
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wg_peer = &wg_iface->i_peers[0];
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for_each_wgpeer(dev, peer) {
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wg_peer = calloc(1, sizeof(*wg_peer));
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if (!wg_peer)
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goto out;
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wg_peer->p_flags = WG_PEER_HAS_PUBLIC;
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memcpy(wg_peer->p_public, peer->public_key, sizeof(wg_peer->p_public));
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@ -1145,14 +1155,9 @@ static int kernel_set_device(struct wgdevice *dev)
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if (peer->flags & WGPEER_REMOVE_ME)
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wg_peer->p_flags |= WG_PEER_REMOVE;
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wg_peer->p_next = wg_iface.i_peers;
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wg_iface.i_peers = wg_peer;
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aip_count = 0;
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wg_aip = &wg_peer->p_aips[0];
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for_each_wgallowedip(peer, aip) {
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wg_aip = calloc(1, sizeof(*wg_aip));
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if (!wg_aip)
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goto out;
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wg_aip->a_af = aip->family;
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wg_aip->a_cidr = aip->cidr;
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@ -1161,14 +1166,16 @@ static int kernel_set_device(struct wgdevice *dev)
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} else if (aip->family == AF_INET6) {
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memcpy(&wg_aip->a_ipv6, &aip->ip6, sizeof(wg_aip->a_ipv6));
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} else {
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free(wg_aip);
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continue;
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}
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wg_aip->a_next = wg_peer->p_aips;
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wg_peer->p_aips = wg_aip;
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++aip_count;
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++wg_aip;
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}
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wg_peer->p_aips_count = aip_count;
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++peer_count;
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wg_peer = (struct wg_peer_io *)wg_aip;
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}
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wg_iface->i_peers_count = peer_count;
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if (ioctl(s, SIOCSWG, (caddr_t)&wgdata) < 0)
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goto out;
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@ -1176,14 +1183,7 @@ static int kernel_set_device(struct wgdevice *dev)
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out:
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ret = -errno;
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for (wg_peer = wg_iface.i_peers; wg_peer; wg_peer = wg_peer_next) {
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for (wg_aip = wg_peer->p_aips; wg_aip; wg_aip = wg_aip_next) {
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wg_aip_next = wg_aip->a_next;
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free(wg_aip);
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}
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wg_peer_next = wg_peer->p_next;
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free(wg_peer);
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}
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free(wgdata.wgd_interface);
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return ret;
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}
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#endif
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@ -25,26 +25,16 @@
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#define SIOCSWG _IOWR('i', 210, struct wg_data_io)
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#define SIOCGWG _IOWR('i', 211, struct wg_data_io)
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struct wg_data_io {
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char wgd_name[IFNAMSIZ];
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size_t wgd_size; /* size of the mem below */
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void *wgd_mem; /* wg_interface_io{1},(wg_peer_io,wg_aip_io*)* */
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};
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#define a_ipv4 a_addr.addr_ipv4
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#define a_ipv6 a_addr.addr_ipv6
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#define WG_INTERFACE_HAS_PUBLIC (1 << 0)
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#define WG_INTERFACE_HAS_PRIVATE (1 << 1)
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#define WG_INTERFACE_HAS_PORT (1 << 2)
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#define WG_INTERFACE_HAS_RTABLE (1 << 3)
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#define WG_INTERFACE_REPLACE_PEERS (1 << 4)
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struct wg_interface_io {
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uint8_t i_flags;
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struct wg_peer_io *i_peers;
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in_port_t i_port;
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int i_rtable;
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uint8_t i_public[WG_KEY_LEN];
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uint8_t i_private[WG_KEY_LEN];
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struct wg_aip_io {
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sa_family_t a_af;
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int a_cidr;
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union wg_aip_addr {
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struct in_addr addr_ipv4;
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struct in6_addr addr_ipv6;
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} a_addr;
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};
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#define WG_PEER_HAS_PUBLIC (1 << 0)
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@ -60,42 +50,43 @@ struct wg_interface_io {
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#define p_sin6 p_endpoint.sa_sin6
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struct wg_peer_io {
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int p_flags;
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struct wg_peer_io *p_next;
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struct wg_aip_io *p_aips;
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int p_protocol_version;
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uint8_t p_public[WG_KEY_LEN];
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uint8_t p_psk[WG_KEY_LEN];
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uint16_t p_pka;
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int p_flags;
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int p_protocol_version;
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uint8_t p_public[WG_KEY_LEN];
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uint8_t p_psk[WG_KEY_LEN];
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uint16_t p_pka;
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union wg_peer_endpoint {
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struct sockaddr sa_sa;
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struct sockaddr_in sa_sin;
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struct sockaddr_in6 sa_sin6;
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} p_endpoint;
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uint64_t p_txbytes;
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uint64_t p_rxbytes;
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struct timespec p_last_handshake; /* nanotime */
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} p_endpoint;
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uint64_t p_txbytes;
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uint64_t p_rxbytes;
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struct timespec p_last_handshake; /* nanotime */
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size_t p_aips_count;
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struct wg_aip_io p_aips[];
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};
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#define a_af a_data.d_af
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#define a_cidr a_data.d_cidr
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#define a_addr a_data.d_addr
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#define a_ipv4 a_addr.addr_ipv4
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#define a_ipv6 a_addr.addr_ipv6
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#define WG_INTERFACE_HAS_PUBLIC (1 << 0)
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#define WG_INTERFACE_HAS_PRIVATE (1 << 1)
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#define WG_INTERFACE_HAS_PORT (1 << 2)
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#define WG_INTERFACE_HAS_RTABLE (1 << 3)
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#define WG_INTERFACE_REPLACE_PEERS (1 << 4)
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struct wg_aip_io {
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struct wg_aip_io *a_next;
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struct wg_interface_io {
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uint8_t i_flags;
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in_port_t i_port;
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int i_rtable;
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uint8_t i_public[WG_KEY_LEN];
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uint8_t i_private[WG_KEY_LEN];
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size_t i_peers_count;
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struct wg_peer_io i_peers[];
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};
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struct wg_aip_data {
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sa_family_t d_af;
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int d_cidr;
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union wg_aip_addr {
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struct in_addr addr_ipv4;
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struct in6_addr addr_ipv6;
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} d_addr;
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} a_data;
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struct wg_data_io {
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char wgd_name[IFNAMSIZ];
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size_t wgd_size; /* total size of the memory pointed to by wgd_interface */
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struct wg_interface_io *wgd_interface;
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};
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#endif /* __IF_WG_H__ */
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