sock: pass protocol to sockets

kernel-src/io/net/localsocket.c

@@ -1132,12 +1132,12 @@ void localsock_leavebinding(vnode_t *vnode) {
 	vnode->socketbinding = NULL;
 }
 
-int localsock_pair(socket_t **ret1, socket_t **ret2) {
-	socket_t *socket1 = socket_create(SOCKET_TYPE_LOCAL);
+int localsock_pair(socket_t **ret1, socket_t **ret2, int protocol) {
+	socket_t *socket1 = socket_create(SOCKET_TYPE_LOCAL, protocol);
 	if (socket1 == NULL)
 		return ENOMEM;
 
-	socket_t *socket2 = socket_create(SOCKET_TYPE_LOCAL);
+	socket_t *socket2 = socket_create(SOCKET_TYPE_LOCAL, protocol);
 	if (socket2 == NULL) {
 		localsock_destroy(socket1);
 		return ENOMEM;
@@ -1168,8 +1168,8 @@ int localsock_pair(socket_t **ret1, socket_t **ret2) {
 	return 0;
 }
 
-int localsock_pair_seqpacket(socket_t **ret1, socket_t **ret2) {
-	int error = localsock_pair(ret1, ret2);
+int localsock_pair_seqpacket(socket_t **ret1, socket_t **ret2, int protocol) {
+	int error = localsock_pair(ret1, ret2, protocol);
 	if (error)
 		return error;
 
@@ -1421,7 +1421,7 @@ static socketops_t socketops = {
 	.setopt = localsock_setopt
 };
 
-socket_t *localsock_createsocket(void) {
+socket_t *localsock_createsocket(int protocol) {
 	// XXX possibly move this to a slab?
 	localsocket_t *socket = alloc(sizeof(localsocket_t));
 	if (socket == NULL)
@@ -1444,8 +1444,8 @@ socket_t *localsock_createsocket(void) {
 	return (socket_t *)socket;
 }
 
-socket_t *localsock_create_seqpacket_socket(void) {
-	localsocket_t *localsocket = (localsocket_t *)localsock_createsocket();
+socket_t *localsock_create_seqpacket_socket(int protocol) {
+	localsocket_t *localsocket = (localsocket_t *)localsock_createsocket(protocol);
 	if (localsocket == NULL)
 		return NULL;
 

kernel-src/io/net/socket.c

@@ -2,7 +2,7 @@
 #include <kernel/raw.h>
 #include <logging.h>
 
-static socket_t *(*createsocket[])() = {
+static socket_t *(*createsocket[])(int) = {
 	udp_createsocket,
 	localsock_createsocket,
 	tcp_createsocket,
@@ -10,9 +10,9 @@ static socket_t *(*createsocket[])() = {
 	raw_create_socket
 };
 
-socket_t *socket_create(int type) {
+socket_t *socket_create(int type, int protocol) {
 	__assert(type < sizeof(createsocket) / sizeof(createsocket[0]));
-	socket_t *socket = createsocket[type]();
+	socket_t *socket = createsocket[type](protocol);
 	if (socket == NULL)
 		return NULL;
 
@@ -20,6 +20,7 @@ socket_t *socket_create(int type) {
 	socket->state = SOCKET_STATE_UNBOUND;
 	MUTEX_INIT(&socket->mutex);
 	socket->type = type;
+	socket->protocol = protocol;
 	socket->nonblocking = false;
 
 	return socket;

kernel-src/io/net/tcp.c

@@ -1973,7 +1973,7 @@ static socketops_t socketops = {
 	.getopt = tcp_getopt
 };
 
-socket_t *tcp_createsocket() {
+socket_t *tcp_createsocket(int protocol) {
 	tcpsocket_t *socket = alloc(sizeof(tcpsocket_t));
 	if (socket == NULL)
 		return NULL;

kernel-src/io/net/udp.c

@@ -382,7 +382,7 @@ static socketops_t socketops = {
 	.connect = udp_connect
 };
 
-socket_t *udp_createsocket() {
+socket_t *udp_createsocket(int protocol) {
 	// XXX possibly move this to a slab?
 	udpsocket_t *socket = alloc(sizeof(udpsocket_t));
 	if (socket == NULL)