Annotation of embedaddon/strongswan/src/libcharon/plugins/ha/ha_kernel.h, revision 1.1
1.1 ! misho 1: /*
! 2: * Copyright (C) 2009 Martin Willi
! 3: * HSR Hochschule fuer Technik Rapperswil
! 4: *
! 5: * This program is free software; you can redistribute it and/or modify it
! 6: * under the terms of the GNU General Public License as published by the
! 7: * Free Software Foundation; either version 2 of the License, or (at your
! 8: * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
! 9: *
! 10: * This program is distributed in the hope that it will be useful, but
! 11: * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
! 12: * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
! 13: * for more details.
! 14: */
! 15:
! 16: /**
! 17: * @defgroup ha_kernel ha_kernel
! 18: * @{ @ingroup ha
! 19: */
! 20:
! 21: #ifndef HA_KERNEL_H_
! 22: #define HA_KERNEL_H_
! 23:
! 24: typedef struct ha_kernel_t ha_kernel_t;
! 25:
! 26: #include "ha_segments.h"
! 27:
! 28: /**
! 29: * HA segment kernel configuration interface.
! 30: */
! 31: struct ha_kernel_t {
! 32:
! 33: /**
! 34: * Get the segment a host is in.
! 35: *
! 36: * @param host host to get segment for
! 37: * @return segment number
! 38: */
! 39: u_int (*get_segment)(ha_kernel_t *this, host_t *host);
! 40:
! 41: /**
! 42: * Get the segment a host/SPI is in, as used for CHILD_SA segmentation.
! 43: *
! 44: * @param host host to get segment for
! 45: * @param spi SPI to include in hash
! 46: * @return segment number
! 47: */
! 48: u_int (*get_segment_spi)(ha_kernel_t *this, host_t *host, uint32_t spi);
! 49:
! 50: /**
! 51: * Get the segment an arbitrary integer is in.
! 52: *
! 53: * @param n integer to segment
! 54: */
! 55: u_int (*get_segment_int)(ha_kernel_t *this, int n);
! 56:
! 57: /**
! 58: * Activate a segment at kernel level for all cluster addresses.
! 59: *
! 60: * @param segment segment to activate
! 61: */
! 62: void (*activate)(ha_kernel_t *this, u_int segment);
! 63:
! 64: /**
! 65: * Deactivate a segment at kernel level for all cluster addresses.
! 66: *
! 67: * @param segment segment to deactivate
! 68: */
! 69: void (*deactivate)(ha_kernel_t *this, u_int segment);
! 70:
! 71: /**
! 72: * Destroy a ha_kernel_t.
! 73: */
! 74: void (*destroy)(ha_kernel_t *this);
! 75: };
! 76:
! 77: /**
! 78: * Create a ha_kernel instance.
! 79: *
! 80: * @param count total number of segments to use
! 81: */
! 82: ha_kernel_t *ha_kernel_create(u_int count);
! 83:
! 84: #endif /** HA_KERNEL_ @}*/
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