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authorStefan Metzmacher <metze@samba.org>2009-02-18 09:10:54 +0100
committerStefan Metzmacher <metze@samba.org>2009-03-19 15:01:12 +0100
commit2e0e416676f5d67e716f272d3923386c3f0c9524 (patch)
tree81f0c9751fe36b060901d71666903762708747be /lib
parent011ad7245d53a716c4c766f5ef8d317bb3a53d0f (diff)
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lib/tsocket: add generic socket abstraction layer
This will replace source4/lib/socket/. metze
Diffstat (limited to 'lib')
-rw-r--r--lib/tsocket/config.mk10
-rw-r--r--lib/tsocket/tsocket.c231
-rw-r--r--lib/tsocket/tsocket.h124
-rw-r--r--lib/tsocket/tsocket_internal.h153
4 files changed, 518 insertions, 0 deletions
diff --git a/lib/tsocket/config.mk b/lib/tsocket/config.mk
new file mode 100644
index 0000000000..afc625d5db
--- /dev/null
+++ b/lib/tsocket/config.mk
@@ -0,0 +1,10 @@
+[SUBSYSTEM::LIBTSOCKET]
+PRIVATE_DEPENDENCIES = LIBTALLOC LIBTEVENT LIBREPLACE_NETWORK
+
+LIBTSOCKET_OBJ_FILES = $(addprefix ../lib/tsocket/, \
+ tsocket.o)
+
+PUBLIC_HEADERS += $(addprefix ../lib/tsocket/, \
+ tsocket.h\
+ tsocket_internal.h)
+
diff --git a/lib/tsocket/tsocket.c b/lib/tsocket/tsocket.c
new file mode 100644
index 0000000000..1a12e691a9
--- /dev/null
+++ b/lib/tsocket/tsocket.c
@@ -0,0 +1,231 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ Copyright (C) Stefan Metzmacher 2009
+
+ ** NOTE! The following LGPL license applies to the tevent
+ ** library. This does NOT imply that all of Samba is released
+ ** under the LGPL
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 3 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "replace.h"
+#include "system/network.h"
+#include "tsocket.h"
+#include "tsocket_internal.h"
+
+static int tsocket_context_destructor(struct tsocket_context *sock)
+{
+ tsocket_disconnect(sock);
+ return 0;
+}
+
+struct tsocket_context *_tsocket_context_create(TALLOC_CTX *mem_ctx,
+ const struct tsocket_context_ops *ops,
+ void *pstate,
+ size_t psize,
+ const char *type,
+ const char *location)
+{
+ void **ppstate = (void **)pstate;
+ struct tsocket_context *sock;
+
+ sock = talloc_zero(mem_ctx, struct tsocket_context);
+ if (!sock) {
+ return NULL;
+ }
+ sock->ops = ops;
+ sock->location = location;
+ sock->private_data = talloc_size(sock, psize);
+ if (!sock->private_data) {
+ talloc_free(sock);
+ return NULL;
+ }
+ talloc_set_name_const(sock->private_data, type);
+
+ talloc_set_destructor(sock, tsocket_context_destructor);
+
+ *ppstate = sock->private_data;
+ return sock;
+}
+
+int tsocket_set_event_context(struct tsocket_context *sock,
+ struct tevent_context *ev)
+{
+ return sock->ops->set_event_context(sock, ev);
+}
+
+int tsocket_set_readable_handler(struct tsocket_context *sock,
+ tsocket_event_handler_t handler,
+ void *private_data)
+{
+ return sock->ops->set_read_handler(sock, handler, private_data);
+}
+
+int tsocket_set_writeable_handler(struct tsocket_context *sock,
+ tsocket_event_handler_t handler,
+ void *private_data)
+{
+ return sock->ops->set_write_handler(sock, handler, private_data);
+}
+
+int tsocket_connect(struct tsocket_context *sock,
+ const struct tsocket_address *remote_addr)
+{
+ return sock->ops->connect_to(sock, remote_addr);
+}
+
+int tsocket_listen(struct tsocket_context *sock,
+ int queue_size)
+{
+ return sock->ops->listen_on(sock, queue_size);
+}
+
+int _tsocket_accept(struct tsocket_context *sock,
+ TALLOC_CTX *mem_ctx,
+ struct tsocket_context **new_sock,
+ const char *location)
+{
+ return sock->ops->accept_new(sock, mem_ctx, new_sock, location);
+}
+
+ssize_t tsocket_pending(struct tsocket_context *sock)
+{
+ return sock->ops->pending_data(sock);
+}
+
+int tsocket_readv(struct tsocket_context *sock,
+ const struct iovec *vector, size_t count)
+{
+ return sock->ops->readv_data(sock, vector, count);
+}
+
+int tsocket_writev(struct tsocket_context *sock,
+ const struct iovec *vector, size_t count)
+{
+ return sock->ops->writev_data(sock, vector, count);
+}
+
+ssize_t tsocket_recvfrom(struct tsocket_context *sock,
+ uint8_t *data, size_t len,
+ TALLOC_CTX *addr_ctx,
+ struct tsocket_address **src_addr)
+{
+ return sock->ops->recvfrom_data(sock, data, len, addr_ctx, src_addr);
+}
+
+ssize_t tsocket_sendto(struct tsocket_context *sock,
+ const uint8_t *data, size_t len,
+ const struct tsocket_address *dest_addr)
+{
+ return sock->ops->sendto_data(sock, data, len, dest_addr);
+}
+
+int tsocket_get_status(const struct tsocket_context *sock)
+{
+ return sock->ops->get_status(sock);
+}
+
+int _tsocket_get_local_address(const struct tsocket_context *sock,
+ TALLOC_CTX *mem_ctx,
+ struct tsocket_address **local_addr,
+ const char *location)
+{
+ return sock->ops->get_local_address(sock, mem_ctx,
+ local_addr, location);
+}
+
+int _tsocket_get_remote_address(const struct tsocket_context *sock,
+ TALLOC_CTX *mem_ctx,
+ struct tsocket_address **remote_addr,
+ const char *location)
+{
+ return sock->ops->get_remote_address(sock, mem_ctx,
+ remote_addr, location);
+}
+
+int tsocket_get_option(const struct tsocket_context *sock,
+ const char *option,
+ TALLOC_CTX *mem_ctx,
+ char **value)
+{
+ return sock->ops->get_option(sock, option, mem_ctx, value);
+}
+
+int tsocket_set_option(const struct tsocket_context *sock,
+ const char *option,
+ bool force,
+ const char *value)
+{
+ return sock->ops->set_option(sock, option, force, value);
+}
+
+void tsocket_disconnect(struct tsocket_context *sock)
+{
+ sock->ops->disconnect(sock);
+}
+
+struct tsocket_address *_tsocket_address_create(TALLOC_CTX *mem_ctx,
+ const struct tsocket_address_ops *ops,
+ void *pstate,
+ size_t psize,
+ const char *type,
+ const char *location)
+{
+ void **ppstate = (void **)pstate;
+ struct tsocket_address *addr;
+
+ addr = talloc_zero(mem_ctx, struct tsocket_address);
+ if (!addr) {
+ return NULL;
+ }
+ addr->ops = ops;
+ addr->location = location;
+ addr->private_data = talloc_size(addr, psize);
+ if (!addr->private_data) {
+ talloc_free(addr);
+ return NULL;
+ }
+ talloc_set_name_const(addr->private_data, type);
+
+ *ppstate = addr->private_data;
+ return addr;
+}
+
+char *tsocket_address_string(const struct tsocket_address *addr,
+ TALLOC_CTX *mem_ctx)
+{
+ if (!addr) {
+ return talloc_strdup(mem_ctx, "NULL");
+ }
+ return addr->ops->string(addr, mem_ctx);
+}
+
+struct tsocket_address *_tsocket_address_copy(const struct tsocket_address *addr,
+ TALLOC_CTX *mem_ctx,
+ const char *location)
+{
+ return addr->ops->copy(addr, mem_ctx, location);
+}
+
+int _tsocket_address_create_socket(const struct tsocket_address *addr,
+ enum tsocket_type type,
+ TALLOC_CTX *mem_ctx,
+ struct tsocket_context **sock,
+ const char *location)
+{
+ return addr->ops->create_socket(addr, type, mem_ctx, sock, location);
+}
+
diff --git a/lib/tsocket/tsocket.h b/lib/tsocket/tsocket.h
new file mode 100644
index 0000000000..fd05e394f3
--- /dev/null
+++ b/lib/tsocket/tsocket.h
@@ -0,0 +1,124 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ Copyright (C) Stefan Metzmacher 2009
+
+ ** NOTE! The following LGPL license applies to the tevent
+ ** library. This does NOT imply that all of Samba is released
+ ** under the LGPL
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 3 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef _TSOCKET_H
+#define _TSOCKET_H
+
+#include <talloc.h>
+#include <tevent.h>
+
+struct tsocket_context;
+struct tsocket_address;
+struct iovec;
+
+enum tsocket_type {
+ TSOCKET_TYPE_STREAM = 1,
+ TSOCKET_TYPE_DGRAM,
+ TSOCKET_TYPE_MESSAGE
+};
+
+typedef void (*tsocket_event_handler_t)(struct tsocket_context *, void *);
+int tsocket_set_event_context(struct tsocket_context *sock,
+ struct tevent_context *ev);
+int tsocket_set_readable_handler(struct tsocket_context *sock,
+ tsocket_event_handler_t handler,
+ void *private_data);
+int tsocket_set_writeable_handler(struct tsocket_context *sock,
+ tsocket_event_handler_t handler,
+ void *private_data);
+
+int tsocket_connect(struct tsocket_context *sock,
+ const struct tsocket_address *remote_addr);
+
+int tsocket_listen(struct tsocket_context *sock,
+ int queue_size);
+
+int _tsocket_accept(struct tsocket_context *sock,
+ TALLOC_CTX *mem_ctx,
+ struct tsocket_context **new_sock,
+ const char *location);
+#define tsocket_accept(sock, mem_ctx, new_sock) \
+ _tsocket_accept(sock, mem_ctx, new_sock, __location__)
+
+ssize_t tsocket_pending(struct tsocket_context *sock);
+
+int tsocket_readv(struct tsocket_context *sock,
+ const struct iovec *vector, size_t count);
+int tsocket_writev(struct tsocket_context *sock,
+ const struct iovec *vector, size_t count);
+
+ssize_t tsocket_recvfrom(struct tsocket_context *sock,
+ uint8_t *data, size_t len,
+ TALLOC_CTX *addr_ctx,
+ struct tsocket_address **src_addr);
+ssize_t tsocket_sendto(struct tsocket_context *sock,
+ const uint8_t *data, size_t len,
+ const struct tsocket_address *dest_addr);
+
+int tsocket_get_status(const struct tsocket_context *sock);
+
+int _tsocket_get_local_address(const struct tsocket_context *sock,
+ TALLOC_CTX *mem_ctx,
+ struct tsocket_address **local_addr,
+ const char *location);
+#define tsocket_get_local_address(sock, mem_ctx, local_addr) \
+ _tsocket_get_local_address(sock, mem_ctx, local_addr, __location__)
+int _tsocket_get_remote_address(const struct tsocket_context *sock,
+ TALLOC_CTX *mem_ctx,
+ struct tsocket_address **remote_addr,
+ const char *location);
+#define tsocket_get_remote_address(sock, mem_ctx, remote_addr) \
+ _tsocket_get_remote_address(sock, mem_ctx, remote_addr, __location__)
+
+int tsocket_get_option(const struct tsocket_context *sock,
+ const char *option,
+ TALLOC_CTX *mem_ctx,
+ char **value);
+int tsocket_set_option(const struct tsocket_context *sock,
+ const char *option,
+ bool force,
+ const char *value);
+
+void tsocket_disconnect(struct tsocket_context *sock);
+
+char *tsocket_address_string(const struct tsocket_address *addr,
+ TALLOC_CTX *mem_ctx);
+
+struct tsocket_address *_tsocket_address_copy(const struct tsocket_address *addr,
+ TALLOC_CTX *mem_ctx,
+ const char *location);
+
+#define tsocket_address_copy(addr, mem_ctx) \
+ _tsocket_address_copy(addr, mem_ctx, __location__)
+
+int _tsocket_address_create_socket(const struct tsocket_address *addr,
+ enum tsocket_type type,
+ TALLOC_CTX *mem_ctx,
+ struct tsocket_context **sock,
+ const char *location);
+#define tsocket_address_create_socket(addr, type, mem_ctx, sock) \
+ _tsocket_address_create_socket(addr, type, mem_ctx, sock,\
+ __location__)
+
+#endif /* _TSOCKET_H */
+
diff --git a/lib/tsocket/tsocket_internal.h b/lib/tsocket/tsocket_internal.h
new file mode 100644
index 0000000000..fccd1fbeda
--- /dev/null
+++ b/lib/tsocket/tsocket_internal.h
@@ -0,0 +1,153 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ Copyright (C) Stefan Metzmacher 2009
+
+ ** NOTE! The following LGPL license applies to the tevent
+ ** library. This does NOT imply that all of Samba is released
+ ** under the LGPL
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 3 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef _TSOCKET_INTERNAL_H
+#define _TSOCKET_INTERNAL_H
+
+struct tsocket_context_ops {
+ const char *name;
+
+ /* event handling */
+ int (*set_event_context)(struct tsocket_context *sock,
+ struct tevent_context *ev);
+ int (*set_read_handler)(struct tsocket_context *sock,
+ tsocket_event_handler_t handler,
+ void *private_data);
+ int (*set_write_handler)(struct tsocket_context *sock,
+ tsocket_event_handler_t handler,
+ void *private_data);
+
+ /* client ops */
+ int (*connect_to)(struct tsocket_context *sock,
+ const struct tsocket_address *remote_addr);
+
+ /* server ops */
+ int (*listen_on)(struct tsocket_context *sock,
+ int queue_size);
+ int (*accept_new)(struct tsocket_context *sock,
+ TALLOC_CTX *mem_ctx,
+ struct tsocket_context **new_sock,
+ const char *location);
+
+ /* general ops */
+ ssize_t (*pending_data)(struct tsocket_context *sock);
+
+ int (*readv_data)(struct tsocket_context *sock,
+ const struct iovec *vector, size_t count);
+ int (*writev_data)(struct tsocket_context *sock,
+ const struct iovec *vector, size_t count);
+
+ ssize_t (*recvfrom_data)(struct tsocket_context *sock,
+ uint8_t *data, size_t len,
+ TALLOC_CTX *addr_ctx,
+ struct tsocket_address **remote_addr);
+ ssize_t (*sendto_data)(struct tsocket_context *sock,
+ const uint8_t *data, size_t len,
+ const struct tsocket_address *remote_addr);
+
+ /* info */
+ int (*get_status)(const struct tsocket_context *sock);
+ int (*get_local_address)(const struct tsocket_context *sock,
+ TALLOC_CTX *mem_ctx,
+ struct tsocket_address **local_addr,
+ const char *location);
+ int (*get_remote_address)(const struct tsocket_context *sock,
+ TALLOC_CTX *mem_ctx,
+ struct tsocket_address **remote_addr,
+ const char *location);
+
+ /* options */
+ int (*get_option)(const struct tsocket_context *sock,
+ const char *option,
+ TALLOC_CTX *mem_ctx,
+ char **value);
+ int (*set_option)(const struct tsocket_context *sock,
+ const char *option,
+ bool force,
+ const char *value);
+
+ /* close/disconnect */
+ void (*disconnect)(struct tsocket_context *sock);
+};
+
+struct tsocket_context {
+ const char *location;
+ const struct tsocket_context_ops *ops;
+
+ void *private_data;
+
+ struct {
+ struct tevent_context *ctx;
+ void *read_private;
+ tsocket_event_handler_t read_handler;
+ void *write_private;
+ tsocket_event_handler_t write_handler;
+ } event;
+};
+
+struct tsocket_context *_tsocket_context_create(TALLOC_CTX *mem_ctx,
+ const struct tsocket_context_ops *ops,
+ void *pstate,
+ size_t psize,
+ const char *type,
+ const char *location);
+#define tsocket_context_create(mem_ctx, ops, state, type, location) \
+ _tsocket_context_create(mem_ctx, ops, state, sizeof(type), \
+ #type, location)
+
+struct tsocket_address_ops {
+ const char *name;
+
+ char *(*string)(const struct tsocket_address *addr,
+ TALLOC_CTX *mem_ctx);
+
+ struct tsocket_address *(*copy)(const struct tsocket_address *addr,
+ TALLOC_CTX *mem_ctx,
+ const char *location);
+
+ int (*create_socket)(const struct tsocket_address *addr,
+ enum tsocket_type,
+ TALLOC_CTX *mem_ctx,
+ struct tsocket_context **sock,
+ const char *location);
+};
+
+struct tsocket_address {
+ const char *location;
+ const struct tsocket_address_ops *ops;
+
+ void *private_data;
+};
+
+struct tsocket_address *_tsocket_address_create(TALLOC_CTX *mem_ctx,
+ const struct tsocket_address_ops *ops,
+ void *pstate,
+ size_t psize,
+ const char *type,
+ const char *location);
+#define tsocket_address_create(mem_ctx, ops, state, type, location) \
+ _tsocket_address_create(mem_ctx, ops, state, sizeof(type), \
+ #type, location)
+
+#endif /* _TSOCKET_H */
+