Move cbindgen.toml to ffi directory

ffi/cbindgen.toml

@@ -0,0 +1,144 @@
+language = "C"
+
+
+
+############## Options for Wrapping the Contents of the Header #################
+
+# header = "/* Text to put at the beginning of the generated file. Probably a license. */"
+# trailer = "/* Text to put at the end of the generated file */"
+# include_guard = "my_bindings_h"
+# pragma_once = true
+# autogen_warning = "/* Warning, this file is autogenerated by cbindgen. Don't modify this manually. */"
+include_version = false
+# namespace = "my_namespace"
+namespaces = []
+using_namespaces = []
+sys_includes = []
+includes = []
+no_includes = false
+after_includes = ""
+
+
+
+
+############################ Code Style Options ################################
+
+braces = "SameLine"
+line_length = 100
+tab_width = 2
+documentation = true
+documentation_style = "auto"
+documentation_length = "full"
+line_endings = "LF" # also "CR", "CRLF", "Native"
+
+
+
+
+############################# Codegen Options ##################################
+
+style = "both"
+sort_by = "Name" # default for `fn.sort_by` and `const.sort_by`
+usize_is_size_t = true
+
+
+
+[defines]
+# "target_os = freebsd" = "DEFINE_FREEBSD"
+# "feature = serde" = "DEFINE_SERDE"
+
+
+
+[export]
+include = []
+exclude = []
+# prefix = "CAPI_"
+item_types = []
+renaming_overrides_prefixing = false
+
+
+
+[export.rename]
+
+
+
+[export.body]
+
+
+[export.mangle]
+
+
+[fn]
+rename_args = "None"
+# must_use = "MUST_USE_FUNC"
+# no_return = "NO_RETURN"
+# prefix = "START_FUNC"
+# postfix = "END_FUNC"
+args = "auto"
+sort_by = "Name"
+
+
+
+
+[struct]
+rename_fields = "None"
+# must_use = "MUST_USE_STRUCT"
+derive_constructor = false
+derive_eq = false
+derive_neq = false
+derive_lt = false
+derive_lte = false
+derive_gt = false
+derive_gte = false
+
+
+
+
+[enum]
+rename_variants = "None"
+# must_use = "MUST_USE_ENUM"
+add_sentinel = false
+prefix_with_name = false
+derive_helper_methods = false
+derive_const_casts = false
+derive_mut_casts = false
+# cast_assert_name = "ASSERT"
+derive_tagged_enum_destructor = false
+derive_tagged_enum_copy_constructor = false
+enum_class = true
+private_default_tagged_enum_constructor = false
+
+
+
+
+[const]
+allow_static_const = true
+allow_constexpr = false
+sort_by = "Name"
+
+
+
+
+[macro_expansion]
+bitflags = false
+
+
+
+
+
+
+############## Options for How Your Rust library Should Be Parsed ##############
+
+[parse]
+parse_deps = false
+# include = []
+exclude = []
+clean = false
+extra_bindings = []
+
+
+
+[parse.expand]
+crates = []
+all_features = false
+default_features = true
+features = []

ffi/onetun.h

@@ -0,0 +1,90 @@
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+
+/**
+ * The capacity of the channel for received IP packets.
+ */
+#define DISPATCH_CAPACITY 1000
+
+typedef struct Bus Bus;
+
+typedef struct Config Config;
+
+typedef struct PortForwardConfig PortForwardConfig;
+
+/**
+ * Creates a new bus struct
+ * # Arguments
+ * *none*
+ * # Returns
+ * A pointer to a bus struct
+ */
+struct Bus *onetun_new_bus(void);
+
+/**
+ * Creates a new config struct for starting a tunnel
+ * # Arguments
+ * * `port_forwards` - A pointer to an array of pointers to port forwards, generated with `onetun_new_port_forward`
+ * * `port_forwards_len` - The length of the array of pointers to port forwards
+ * * `remote_forwards` - A pointer to an array of pointers to port forwards, generated with `onetun_new_port_forward`
+ * * `remote_forwards_len` - The length of the array of pointers to port forwards
+ * * `private_key` - A pointer to an array of chars containing the private key
+ * * `public_key` - A pointer to an array of chars containing the public key
+ * * `endpoint_addr` - A pointer to an array of chars containing the endpoint address
+ * * `endpoint_bind_addr` - A pointer to an array of chars containing the endpoint bind address
+ * * `source_peer_ip` - A pointer to an array of chars containing the source peer IP address
+ * * `keepalive_seconds` - A number representing the keepalive interval, or -1 for None
+ * * `max_transmission_unit` - A number representing the maximum transmission unit
+ * * `log` - A pointer to an array of chars containing the log level (e.g. "INFO", "DEBUG", "TRACE")
+ * * `pcap_file` - A pointer to an array of chars containing the pcap file path, or NULL for none
+ * # Returns
+ * A pointer to a config struct, or NULL on failure
+ * # Safety
+ * All pointers must be valid and not null, unless specified and expected to be NULL.
+ */
+struct Config *onetun_new_config(struct PortForwardConfig *const *port_forwards,
+                                 unsigned int port_forwards_len,
+                                 struct PortForwardConfig *const *remote_forwards,
+                                 unsigned int remote_forwards_len,
+                                 const char *private_key,
+                                 const char *public_key,
+                                 const char *endpoint_addr,
+                                 const char *endpoint_bind_addr,
+                                 const char *source_peer_ip,
+                                 int keepalive_seconds,
+                                 int max_transmission_unit,
+                                 const char *log,
+                                 const char *pcap_file);
+
+/**
+ * Creates a new port forward configuration
+ * # Arguments
+ * * `source` - A list of chars representing a socket address
+ * * `destination` - A list of chars representing a socket address
+ * * `protocol` - Either `tcp` or `udp`
+ * * `port` - Whether this forward is remote: 1 for true, 0 for false
+ * # Returns
+ * A pointer to a port forward config struct, or NULL on failure
+ * # Safety
+ * All pointers must be valid. Strings may be freed after this function returns.
+ */
+struct PortForwardConfig *onetun_new_port_forward(const char *source,
+                                                  const char *destination,
+                                                  const char *protocol,
+                                                  unsigned int remote);
+
+/**
+ * Starts a new onetun tunnel
+ * # Arguments
+ * * `config` - The configuration for the tunnel, generated with `onetun_new_config`
+ * * `bus` - The bus to publish events on, generated with `onetun_new_bus`
+ * # Returns
+ * 0 on success, non-zero on failure
+ * # Safety
+ * All pointers must be valid and not null.
+ */
+int32_t onetun_start_tunnels(struct Config *config, struct Bus *bus);