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-rw-r--r--lib/isc/socket_api.c400
1 files changed, 400 insertions, 0 deletions
diff --git a/lib/isc/socket_api.c b/lib/isc/socket_api.c
new file mode 100644
index 0000000..5de98a9
--- /dev/null
+++ b/lib/isc/socket_api.c
@@ -0,0 +1,400 @@
+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+
+#include <config.h>
+
+#include <inttypes.h>
+#include <stdbool.h>
+
+#include <isc/app.h>
+#include <isc/magic.h>
+#include <isc/mutex.h>
+#include <isc/once.h>
+#include <isc/socket.h>
+#include <isc/util.h>
+
+static isc_mutex_t createlock;
+static isc_once_t once = ISC_ONCE_INIT;
+static isc_socketmgrcreatefunc_t socketmgr_createfunc = NULL;
+
+static void
+initialize(void) {
+ RUNTIME_CHECK(isc_mutex_init(&createlock) == ISC_R_SUCCESS);
+}
+
+isc_result_t
+isc_socket_register(isc_socketmgrcreatefunc_t createfunc) {
+ isc_result_t result = ISC_R_SUCCESS;
+
+ RUNTIME_CHECK(isc_once_do(&once, initialize) == ISC_R_SUCCESS);
+
+ LOCK(&createlock);
+ if (socketmgr_createfunc == NULL)
+ socketmgr_createfunc = createfunc;
+ else
+ result = ISC_R_EXISTS;
+ UNLOCK(&createlock);
+
+ return (result);
+}
+
+isc_result_t
+isc_socketmgr_createinctx(isc_mem_t *mctx, isc_appctx_t *actx,
+ isc_socketmgr_t **managerp)
+{
+ isc_result_t result;
+
+ LOCK(&createlock);
+
+ REQUIRE(socketmgr_createfunc != NULL);
+ result = (*socketmgr_createfunc)(mctx, managerp);
+
+ UNLOCK(&createlock);
+
+ if (result == ISC_R_SUCCESS)
+ isc_appctx_setsocketmgr(actx, *managerp);
+
+ return (result);
+}
+
+isc_result_t
+isc_socketmgr_create(isc_mem_t *mctx, isc_socketmgr_t **managerp) {
+ isc_result_t result;
+
+ if (isc_bind9)
+ return (isc__socketmgr_create(mctx, managerp));
+
+ LOCK(&createlock);
+
+ REQUIRE(socketmgr_createfunc != NULL);
+ result = (*socketmgr_createfunc)(mctx, managerp);
+
+ UNLOCK(&createlock);
+
+ return (result);
+}
+
+void
+isc_socketmgr_destroy(isc_socketmgr_t **managerp) {
+ REQUIRE(managerp != NULL && ISCAPI_SOCKETMGR_VALID(*managerp));
+
+ if (isc_bind9)
+ isc__socketmgr_destroy(managerp);
+ else
+ (*managerp)->methods->destroy(managerp);
+
+ ENSURE(*managerp == NULL);
+}
+
+isc_result_t
+isc_socket_create(isc_socketmgr_t *manager, int pf, isc_sockettype_t type,
+ isc_socket_t **socketp)
+{
+ REQUIRE(ISCAPI_SOCKETMGR_VALID(manager));
+
+ if (isc_bind9)
+ return (isc__socket_create(manager, pf, type, socketp));
+
+ return (manager->methods->socketcreate(manager, pf, type, socketp));
+}
+
+void
+isc_socket_attach(isc_socket_t *sock, isc_socket_t **socketp) {
+ REQUIRE(ISCAPI_SOCKET_VALID(sock));
+ REQUIRE(socketp != NULL && *socketp == NULL);
+
+ if (isc_bind9)
+ isc__socket_attach(sock, socketp);
+ else
+ sock->methods->attach(sock, socketp);
+
+ ENSURE(*socketp == sock);
+}
+
+void
+isc_socket_detach(isc_socket_t **socketp) {
+ REQUIRE(socketp != NULL && ISCAPI_SOCKET_VALID(*socketp));
+
+ if (isc_bind9)
+ isc__socket_detach(socketp);
+ else
+ (*socketp)->methods->detach(socketp);
+
+ ENSURE(*socketp == NULL);
+}
+
+isc_result_t
+isc_socket_bind(isc_socket_t *sock, isc_sockaddr_t *sockaddr,
+ unsigned int options)
+{
+ REQUIRE(ISCAPI_SOCKET_VALID(sock));
+
+ if (isc_bind9)
+ return (isc__socket_bind(sock, sockaddr, options));
+
+ return (sock->methods->bind(sock, sockaddr, options));
+}
+
+isc_result_t
+isc_socket_sendto(isc_socket_t *sock, isc_region_t *region, isc_task_t *task,
+ isc_taskaction_t action, void *arg,
+ isc_sockaddr_t *address, struct in6_pktinfo *pktinfo)
+{
+ REQUIRE(ISCAPI_SOCKET_VALID(sock));
+
+ if (isc_bind9)
+ return (isc__socket_sendto(sock, region, task,
+ action, arg, address, pktinfo));
+
+ return (sock->methods->sendto(sock, region, task, action, arg, address,
+ pktinfo));
+}
+
+isc_result_t
+isc_socket_connect(isc_socket_t *sock, isc_sockaddr_t *addr, isc_task_t *task,
+ isc_taskaction_t action, void *arg)
+{
+ REQUIRE(ISCAPI_SOCKET_VALID(sock));
+
+ if (isc_bind9)
+ return (isc__socket_connect(sock, addr, task, action, arg));
+
+ return (sock->methods->connect(sock, addr, task, action, arg));
+}
+
+isc_result_t
+isc_socket_recv(isc_socket_t *sock, isc_region_t *region, unsigned int minimum,
+ isc_task_t *task, isc_taskaction_t action, void *arg)
+{
+ REQUIRE(ISCAPI_SOCKET_VALID(sock));
+
+ if (isc_bind9)
+ return (isc__socket_recv(sock, region, minimum,
+ task, action, arg));
+
+ return (sock->methods->recv(sock, region, minimum, task, action, arg));
+}
+
+void
+isc_socket_cancel(isc_socket_t *sock, isc_task_t *task, unsigned int how) {
+ REQUIRE(ISCAPI_SOCKET_VALID(sock));
+
+ if (isc_bind9)
+ isc__socket_cancel(sock, task, how);
+ else
+ sock->methods->cancel(sock, task, how);
+}
+
+isc_result_t
+isc_socket_getsockname(isc_socket_t *sock, isc_sockaddr_t *addressp) {
+ REQUIRE(ISCAPI_SOCKET_VALID(sock));
+
+ if (isc_bind9)
+ return (isc__socket_getsockname(sock, addressp));
+
+ return (sock->methods->getsockname(sock, addressp));
+}
+
+void
+isc_socket_ipv6only(isc_socket_t *sock, bool yes) {
+ REQUIRE(ISCAPI_SOCKET_VALID(sock));
+
+ if (isc_bind9)
+ isc__socket_ipv6only(sock, yes);
+ else
+ sock->methods->ipv6only(sock, yes);
+}
+
+void
+isc_socket_dscp(isc_socket_t *sock, isc_dscp_t dscp) {
+ REQUIRE(ISCAPI_SOCKET_VALID(sock));
+
+ sock->methods->dscp(sock, dscp);
+}
+
+isc_sockettype_t
+isc_socket_gettype(isc_socket_t *sock) {
+ REQUIRE(ISCAPI_SOCKET_VALID(sock));
+
+ if (isc_bind9)
+ return (isc__socket_gettype(sock));
+
+ return (sock->methods->gettype(sock));
+}
+
+void
+isc_socket_setname(isc_socket_t *sock, const char *name, void *tag) {
+ REQUIRE(ISCAPI_SOCKET_VALID(sock));
+
+ UNUSED(sock); /* in case REQUIRE() is empty */
+ UNUSED(name);
+ UNUSED(tag);
+}
+
+isc_result_t
+isc_socket_fdwatchcreate(isc_socketmgr_t *manager, int fd, int flags,
+ isc_sockfdwatch_t callback, void *cbarg,
+ isc_task_t *task, isc_socket_t **socketp)
+{
+ REQUIRE(ISCAPI_SOCKETMGR_VALID(manager));
+
+ if (isc_bind9)
+ return (isc__socket_fdwatchcreate(manager, fd, flags,
+ callback, cbarg,
+ task, socketp));
+
+ return (manager->methods->fdwatchcreate(manager, fd, flags,
+ callback, cbarg, task,
+ socketp));
+}
+
+isc_result_t
+isc_socket_fdwatchpoke(isc_socket_t *sock, int flags)
+{
+ REQUIRE(ISCAPI_SOCKET_VALID(sock));
+
+ if (isc_bind9)
+ return (isc__socket_fdwatchpoke(sock, flags));
+
+ return (sock->methods->fdwatchpoke(sock, flags));
+}
+
+isc_result_t
+isc_socket_dup(isc_socket_t *sock, isc_socket_t **socketp) {
+ REQUIRE(ISCAPI_SOCKET_VALID(sock));
+ REQUIRE(socketp != NULL && *socketp == NULL);
+
+ if (isc_bind9)
+ return (isc__socket_dup(sock, socketp));
+
+ return (sock->methods->dup(sock, socketp));
+}
+
+int
+isc_socket_getfd(isc_socket_t *sock) {
+ REQUIRE(ISCAPI_SOCKET_VALID(sock));
+
+ if (isc_bind9)
+ return (isc__socket_getfd(sock));
+
+ return (sock->methods->getfd(sock));
+}
+
+isc_result_t
+isc_socket_open(isc_socket_t *sock) {
+ return (isc__socket_open(sock));
+}
+
+isc_result_t
+isc_socket_close(isc_socket_t *sock) {
+ return (isc__socket_close(sock));
+}
+
+isc_result_t
+isc_socketmgr_create2(isc_mem_t *mctx, isc_socketmgr_t **managerp,
+ unsigned int maxsocks)
+{
+ return (isc__socketmgr_create2(mctx, managerp, maxsocks));
+}
+
+isc_result_t
+isc_socket_recvv(isc_socket_t *sock, isc_bufferlist_t *buflist,
+ unsigned int minimum, isc_task_t *task,
+ isc_taskaction_t action, void *arg)
+{
+ return (isc__socket_recvv(sock, buflist, minimum, task, action, arg));
+}
+
+isc_result_t
+isc_socket_recv2(isc_socket_t *sock, isc_region_t *region,
+ unsigned int minimum, isc_task_t *task,
+ isc_socketevent_t *event, unsigned int flags)
+{
+ return (isc__socket_recv2(sock, region, minimum, task, event, flags));
+}
+
+isc_result_t
+isc_socket_send(isc_socket_t *sock, isc_region_t *region,
+ isc_task_t *task, isc_taskaction_t action, void *arg)
+{
+ return (isc__socket_send(sock, region, task, action, arg));
+}
+
+isc_result_t
+isc_socket_sendv(isc_socket_t *sock, isc_bufferlist_t *buflist,
+ isc_task_t *task, isc_taskaction_t action, void *arg)
+{
+ return (isc__socket_sendv(sock, buflist, task, action, arg));
+}
+
+isc_result_t
+isc_socket_sendtov(isc_socket_t *sock, isc_bufferlist_t *buflist,
+ isc_task_t *task, isc_taskaction_t action, void *arg,
+ isc_sockaddr_t *address, struct in6_pktinfo *pktinfo)
+{
+ return (isc__socket_sendtov(sock, buflist, task, action, arg,
+ address, pktinfo));
+}
+
+isc_result_t
+isc_socket_sendtov2(isc_socket_t *sock, isc_bufferlist_t *buflist,
+ isc_task_t *task, isc_taskaction_t action, void *arg,
+ isc_sockaddr_t *address, struct in6_pktinfo *pktinfo,
+ unsigned int flags)
+{
+ return (isc__socket_sendtov2(sock, buflist, task, action, arg,
+ address, pktinfo, flags));
+}
+
+isc_result_t
+isc_socket_sendto2(isc_socket_t *sock, isc_region_t *region,
+ isc_task_t *task,
+ isc_sockaddr_t *address, struct in6_pktinfo *pktinfo,
+ isc_socketevent_t *event, unsigned int flags)
+{
+ return (isc__socket_sendto2(sock, region, task, address, pktinfo,
+ event, flags));
+}
+
+void
+isc_socket_cleanunix(isc_sockaddr_t *sockaddr, bool active) {
+ isc__socket_cleanunix(sockaddr, active);
+}
+
+isc_result_t
+isc_socket_permunix(isc_sockaddr_t *sockaddr, uint32_t perm,
+ uint32_t owner, uint32_t group)
+{
+ return (isc__socket_permunix(sockaddr, perm, owner, group));
+}
+
+isc_result_t
+isc_socket_filter(isc_socket_t *sock, const char *filter) {
+ return (isc__socket_filter(sock, filter));
+}
+
+isc_result_t
+isc_socket_listen(isc_socket_t *sock, unsigned int backlog) {
+ return (isc__socket_listen(sock, backlog));
+}
+
+isc_result_t
+isc_socket_accept(isc_socket_t *sock, isc_task_t *task,
+ isc_taskaction_t action, void *arg)
+{
+ return (isc__socket_accept(sock, task, action, arg));
+}
+
+isc_result_t
+isc_socket_getpeername(isc_socket_t *sock, isc_sockaddr_t *addressp) {
+ return (isc__socket_getpeername(sock, addressp));
+}