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wg: compile on non-Linux

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Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
This commit is contained in:
Jason A. Donenfeld 2017-10-02 13:05:35 +02:00
parent 573bd7f303
commit 91416b0caf
1 changed files with 22 additions and 16 deletions
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38
src/ipc.c
View file

@ -38,6 +38,12 @@
#define SOCK_PATH RUNSTATEDIR "/wireguard/" #define SOCK_PATH RUNSTATEDIR "/wireguard/"
#define SOCK_SUFFIX ".sock" #define SOCK_SUFFIX ".sock"
#ifdef __linux__
#define SOCKET_BUFFER_SIZE MNL_SOCKET_BUFFER_SIZE
#else
#define SOCKET_BUFFER_SIZE 8192
#endif
struct inflatable_buffer { struct inflatable_buffer {
char *buffer; char *buffer;
@ -478,7 +484,7 @@ static int kernel_get_wireguard_interfaces(struct inflatable_buffer *buffer)
struct ifinfomsg *ifm; struct ifinfomsg *ifm;
ret = -ENOMEM; ret = -ENOMEM;
rtnl_buffer = calloc(MNL_SOCKET_BUFFER_SIZE, 1); rtnl_buffer = calloc(SOCKET_BUFFER_SIZE, 1);
if (!rtnl_buffer) if (!rtnl_buffer)
goto cleanup; goto cleanup;
@ -509,7 +515,7 @@ static int kernel_get_wireguard_interfaces(struct inflatable_buffer *buffer)
} }
another: another:
if ((len = mnl_socket_recvfrom(nl, rtnl_buffer, MNL_SOCKET_BUFFER_SIZE)) < 0) { if ((len = mnl_socket_recvfrom(nl, rtnl_buffer, SOCKET_BUFFER_SIZE)) < 0) {
ret = -errno; ret = -errno;
goto cleanup; goto cleanup;
} }
@ -565,10 +571,10 @@ again:
peers_nest = mnl_attr_nest_start(nlh, WGDEVICE_A_PEERS); peers_nest = mnl_attr_nest_start(nlh, WGDEVICE_A_PEERS);
for (i = 0, peer = peer ? peer : dev->first_peer; peer; peer = peer->next_peer) { for (i = 0, peer = peer ? peer : dev->first_peer; peer; peer = peer->next_peer) {
uint32_t flags = 0; uint32_t flags = 0;
peer_nest = mnl_attr_nest_start_check(nlh, MNL_SOCKET_BUFFER_SIZE, i++); peer_nest = mnl_attr_nest_start_check(nlh, SOCKET_BUFFER_SIZE, i++);
if (!peer_nest) if (!peer_nest)
goto toobig_peers; goto toobig_peers;
if (!mnl_attr_put_check(nlh, MNL_SOCKET_BUFFER_SIZE, WGPEER_A_PUBLIC_KEY, sizeof(peer->public_key), peer->public_key)) if (!mnl_attr_put_check(nlh, SOCKET_BUFFER_SIZE, WGPEER_A_PUBLIC_KEY, sizeof(peer->public_key), peer->public_key))
goto toobig_peers; goto toobig_peers;
if (peer->flags & WGPEER_REMOVE_ME) if (peer->flags & WGPEER_REMOVE_ME)
flags |= WGPEER_F_REMOVE_ME; flags |= WGPEER_F_REMOVE_ME;
@ -576,45 +582,45 @@ again:
if (peer->flags & WGPEER_REPLACE_ALLOWEDIPS) if (peer->flags & WGPEER_REPLACE_ALLOWEDIPS)
flags |= WGPEER_F_REPLACE_ALLOWEDIPS; flags |= WGPEER_F_REPLACE_ALLOWEDIPS;
if (peer->flags & WGPEER_HAS_PRESHARED_KEY) { if (peer->flags & WGPEER_HAS_PRESHARED_KEY) {
if (!mnl_attr_put_check(nlh, MNL_SOCKET_BUFFER_SIZE, WGPEER_A_PRESHARED_KEY, sizeof(peer->preshared_key), peer->preshared_key)) if (!mnl_attr_put_check(nlh, SOCKET_BUFFER_SIZE, WGPEER_A_PRESHARED_KEY, sizeof(peer->preshared_key), peer->preshared_key))
goto toobig_peers; goto toobig_peers;
} }
if (peer->endpoint.addr.sa_family == AF_INET) { if (peer->endpoint.addr.sa_family == AF_INET) {
if (!mnl_attr_put_check(nlh, MNL_SOCKET_BUFFER_SIZE, WGPEER_A_ENDPOINT, sizeof(peer->endpoint.addr4), &peer->endpoint.addr4)) if (!mnl_attr_put_check(nlh, SOCKET_BUFFER_SIZE, WGPEER_A_ENDPOINT, sizeof(peer->endpoint.addr4), &peer->endpoint.addr4))
goto toobig_peers; goto toobig_peers;
} else if (peer->endpoint.addr.sa_family == AF_INET6) { } else if (peer->endpoint.addr.sa_family == AF_INET6) {
if (!mnl_attr_put_check(nlh, MNL_SOCKET_BUFFER_SIZE, WGPEER_A_ENDPOINT, sizeof(peer->endpoint.addr6), &peer->endpoint.addr6)) if (!mnl_attr_put_check(nlh, SOCKET_BUFFER_SIZE, WGPEER_A_ENDPOINT, sizeof(peer->endpoint.addr6), &peer->endpoint.addr6))
goto toobig_peers; goto toobig_peers;
} }
if (peer->flags & WGPEER_HAS_PERSISTENT_KEEPALIVE_INTERVAL) { if (peer->flags & WGPEER_HAS_PERSISTENT_KEEPALIVE_INTERVAL) {
if (!mnl_attr_put_u16_check(nlh, MNL_SOCKET_BUFFER_SIZE, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL, peer->persistent_keepalive_interval)) if (!mnl_attr_put_u16_check(nlh, SOCKET_BUFFER_SIZE, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL, peer->persistent_keepalive_interval))
goto toobig_peers; goto toobig_peers;
} }
} }
if (flags) { if (flags) {
if (!mnl_attr_put_u32_check(nlh, MNL_SOCKET_BUFFER_SIZE, WGPEER_A_FLAGS, flags)) if (!mnl_attr_put_u32_check(nlh, SOCKET_BUFFER_SIZE, WGPEER_A_FLAGS, flags))
goto toobig_peers; goto toobig_peers;
} }
if (peer->first_allowedip) { if (peer->first_allowedip) {
if (!allowedip) if (!allowedip)
allowedip = peer->first_allowedip; allowedip = peer->first_allowedip;
allowedips_nest = mnl_attr_nest_start_check(nlh, MNL_SOCKET_BUFFER_SIZE, WGPEER_A_ALLOWEDIPS); allowedips_nest = mnl_attr_nest_start_check(nlh, SOCKET_BUFFER_SIZE, WGPEER_A_ALLOWEDIPS);
if (!allowedips_nest) if (!allowedips_nest)
goto toobig_allowedips; goto toobig_allowedips;
for (j = 0; allowedip; allowedip = allowedip->next_allowedip) { for (j = 0; allowedip; allowedip = allowedip->next_allowedip) {
allowedip_nest = mnl_attr_nest_start_check(nlh, MNL_SOCKET_BUFFER_SIZE, j++); allowedip_nest = mnl_attr_nest_start_check(nlh, SOCKET_BUFFER_SIZE, j++);
if (!allowedip_nest) if (!allowedip_nest)
goto toobig_allowedips; goto toobig_allowedips;
if (!mnl_attr_put_u16_check(nlh, MNL_SOCKET_BUFFER_SIZE, WGALLOWEDIP_A_FAMILY, allowedip->family)) if (!mnl_attr_put_u16_check(nlh, SOCKET_BUFFER_SIZE, WGALLOWEDIP_A_FAMILY, allowedip->family))
goto toobig_allowedips; goto toobig_allowedips;
if (allowedip->family == AF_INET) { if (allowedip->family == AF_INET) {
if (!mnl_attr_put_check(nlh, MNL_SOCKET_BUFFER_SIZE, WGALLOWEDIP_A_IPADDR, sizeof(allowedip->ip4), &allowedip->ip4)) if (!mnl_attr_put_check(nlh, SOCKET_BUFFER_SIZE, WGALLOWEDIP_A_IPADDR, sizeof(allowedip->ip4), &allowedip->ip4))
goto toobig_allowedips; goto toobig_allowedips;
} else if (allowedip->family == AF_INET6) { } else if (allowedip->family == AF_INET6) {
if (!mnl_attr_put_check(nlh, MNL_SOCKET_BUFFER_SIZE, WGALLOWEDIP_A_IPADDR, sizeof(allowedip->ip6), &allowedip->ip6)) if (!mnl_attr_put_check(nlh, SOCKET_BUFFER_SIZE, WGALLOWEDIP_A_IPADDR, sizeof(allowedip->ip6), &allowedip->ip6))
goto toobig_allowedips; goto toobig_allowedips;
} }
if (!mnl_attr_put_u8_check(nlh, MNL_SOCKET_BUFFER_SIZE, WGALLOWEDIP_A_CIDR_MASK, allowedip->cidr)) if (!mnl_attr_put_u8_check(nlh, SOCKET_BUFFER_SIZE, WGALLOWEDIP_A_CIDR_MASK, allowedip->cidr))
goto toobig_allowedips; goto toobig_allowedips;
mnl_attr_nest_end(nlh, allowedip_nest); mnl_attr_nest_end(nlh, allowedip_nest);
allowedip_nest = NULL; allowedip_nest = NULL;
@ -888,7 +894,7 @@ out:
/* first\0second\0third\0forth\0last\0\0 */ /* first\0second\0third\0forth\0last\0\0 */
char *ipc_list_devices(void) char *ipc_list_devices(void)
{ {
struct inflatable_buffer buffer = { .len = MNL_SOCKET_BUFFER_SIZE }; struct inflatable_buffer buffer = { .len = SOCKET_BUFFER_SIZE };
int ret; int ret;
ret = -ENOMEM; ret = -ENOMEM;