Differential D7529 Diff 19347 lib/libifconfig/src/libifconfig.h

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lib/libifconfig/src/libifconfig.h

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				/*
				* Copyright (c) 2016, Marie Helene Kvello-Aune
				* All rights reserved.
				*
				* Redistribution and use in source and binary forms, with or without modification,
				* are permitted provided that the following conditions are met:
				*
				* 1. Redistributions of source code must retain the above copyright notice,
				* thislist of conditions and the following disclaimer.
				*
				* 2. Redistributions in binary form must reproduce the above copyright notice,
				* this list of conditions and the following disclaimer in the documentation and/or
				* other materials provided with the distribution.
				*
				* 3. Neither the name of the copyright holder nor the names of its contributors
				* may be used to endorse or promote products derived from this software without
				* specific prior written permission.
				*
				* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
				* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
				* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
				* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
				* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
				* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
				* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
				* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
				* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
				* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
				*/

				#pragma once

				typedef enum {
				OTHER, IOCTL, SOCKET
				} libifc_errtype;

				/*
				* Opaque definition so calling application can just pass a
				* pointer to it for library use.
				*/
				struct libifc_handle;
				typedef struct libifc_handle libifc_handle_t;

				struct libifc_capabilities {
				/** Current capabilities (ifconfig prints this as 'options')*/
				int curcap;
				/** Requested capabilities (ifconfig prints this as 'capabilities')*/
				int reqcap;
				};


				/** Retrieves a new state object for use in other API calls.
				* Example usage:
				*{@code
				* // Create state object
				* libifc_handle_t *lifh = libifc_open();
				*
				* // Do stuff with it
				*
				* // Dispose of the state object
				* libifc_close(lifh);
				* lifh = NULL;
				*}
				*/
				libifc_handle_t *libifc_open(void);

				/** Frees resources held in the provided state object.
				* @param h The state object to close.
				* @see #libifc_open(void)
				*/
				void libifc_close(libifc_handle_t *h);

				/** Identifies what kind of error occured. */
				libifc_errtype libifc_err_errtype(libifc_handle_t *h);

				/** Retrieves the errno associated with the error, if any. */
				int libifc_err_errno(libifc_handle_t *h);

				/** If error type was IOCTL, this identifies which request failed. */
				unsigned long libifc_err_ioctlreq(libifc_handle_t *h);

				int libifc_get_description(libifc_handle_t h, const char name,
				char **description);
				int libifc_set_description(libifc_handle_t h, const char name,
				const char *newdescription);
				int libifc_unset_description(libifc_handle_t h, const char name);
				int libifc_set_name(libifc_handle_t h, const char name, const char *newname);
				int libifc_set_mtu(libifc_handle_t h, const char name, const int mtu);
				int libifc_get_mtu(libifc_handle_t h, const char name, int *mtu);

				int libifc_set_metric(libifc_handle_t h, const char name, const int metric);
				int libifc_get_metric(libifc_handle_t h, const char name, int *metric);

				int libifc_set_capability(libifc_handle_t h, const char name,
				const int capability);
				int libifc_get_capability(libifc_handle_t h, const char name,
				struct libifc_capabilities *capability);

				/** Destroy a virtual interface
				* @param name Interface to destroy
				*/
				int libifc_destroy_interface(libifc_handle_t h, const char name);

				/** Creates a (virtual) interface
				* @param name Name of interface to create. Example: bridge or bridge42
				* @param name ifname Is set to actual name of created interface
				*/
				int libifc_create_interface(libifc_handle_t h, const char name,
				char **ifname);