97 lines
2.9 KiB
C
97 lines
2.9 KiB
C
/*
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* plugin-api.h: plugin API for ponymap
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*
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* Copyright (c) 2014, Přemysl Janouch <p.janouch@gmail.com>
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* All rights reserved.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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*/
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#ifndef PLUGIN_API_H
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#define PLUGIN_API_H
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// This API is meant to be as simplistic as is realistically possible.
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/// The version of the API, and by extension, of all the following structs
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#define API_VERSION 1
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///< Opaque object with data relating to a service scan
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struct unit;
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enum
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{
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SERVICE_SUPPORTS_TLS = (1 << 0) ///< Plain TLS can be used
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};
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struct service
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{
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const char *name; ///< Name of the service
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int flags; ///< Service flags
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// scan_init -> on_data* -> [on_eof/on_error] -> on_aborted -> scan_free
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/// Initialize a scan, returning a handle to it
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void *(*scan_init) (struct unit *u);
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/// Destroy the handle created for the scan
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void (*scan_free) (void *handle);
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/// We have received some data from the peer
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void (*on_data) (void *handle, const void *data, size_t len);
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/// Server has closed the connection
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void (*on_eof) (void *handle);
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// XXX: do we need these at all? Is there any use for them?
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/// Network or other error has occured
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void (*on_error) (void *handle);
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/// The scan has been aborted
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void (*on_aborted) (void *handle);
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};
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struct plugin_api
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{
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/// Register the plugin for a service
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void (*register_service) (void *ctx, struct service *info);
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/// Get the IP address of the target as a string
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const char *(*unit_get_address) (struct unit *u);
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/// Send some data to the peer
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ssize_t (*unit_write) (struct unit *u, const void *buf, size_t len);
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/// Mark the scan as un/successful
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void (*unit_set_success) (struct unit *u, bool success);
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/// Add some information resulting from the scan
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void (*unit_add_info) (struct unit *u, const char *result);
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/// Abort the scan, close the connection
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void (*unit_abort) (struct unit *u);
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};
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struct plugin_info
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{
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/// Version of the API used by this plugin
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int32_t api_version;
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/// Let the plugin initialize itself and register any services.
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/// The context needs to be passed to the relevant API functions.
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bool (*initialize) (void *ctx, struct plugin_api *api);
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};
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#endif // ! PLUGIN_API_H
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