[mirror_frr.git] / isisd / isis_flags.h

/*
 * IS-IS Rout(e)ing protocol - isis_flags.h
 *                             Routines for manipulation of SSN and SRM flags
 *
 * Copyright (C) 2001,2002   Sampo Saaristo
 *                           Tampere University of Technology      
 *                           Institute of Communications Engineering
 *
 * This program is free software; you can redistribute it and/or modify it 
 * under the terms of the GNU General Public Licenseas published by the Free 
 * Software Foundation; either version 2 of the License, or (at your option) 
 * any later version.
 *
 * This program 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 General Public License for 
 * more details.

 * You should have received a copy of the GNU General Public License along 
 * with this program; if not, write to the Free Software Foundation, Inc., 
 * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

#ifndef _ZEBRA_ISIS_FLAGS_H
#define _ZEBRA_ISIS_FLAGS_H

/* The grand plan is to support 1024 circuits so we have 32*32 bit flags
 * the support will be achived using the newest drafts */
#define ISIS_MAX_CIRCUITS 32 /* = 1024 */	/*FIXME:defined in lsp.h as well */

struct flags *new_flags (int size);
int flags_get_index (struct flags *flags);
void flags_free_index (struct flags *flags, int index);

int flags_any_set (u_int32_t * flags);

#define ISIS_SET_FLAG(F,C) \
        F[C->idx>>5] |= (1<<(C->idx & 0x1F));

#define ISIS_CLEAR_FLAG(F,C) \
        F[C->idx>>5] &= ~(1<<(C->idx & 0x1F));

#define ISIS_CHECK_FLAG(F, C)  F[(C)->idx>>5] & (1<<(C->idx & 0x1F))

/* sets all u_32int_t flags to 1 */
#define ISIS_FLAGS_SET_ALL(FLAGS) \
        memset(FLAGS,0xFF,ISIS_MAX_CIRCUITS*4);

#define ISIS_FLAGS_CLEAR_ALL(FLAGS) \
        memset(FLAGS,0x00,ISIS_MAX_CIRCUITS*4);

#endif /* _ZEBRA_ISIS_FLAGS_H */
Commit	Line	Data
eb5d44eb	1	/*
	2	* IS-IS Rout(e)ing protocol - isis_flags.h
	3	* Routines for manipulation of SSN and SRM flags
	4	*
	5	* Copyright (C) 2001,2002 Sampo Saaristo
	6	* Tampere University of Technology
	7	* Institute of Communications Engineering
	8	*
	9	* This program is free software; you can redistribute it and/or modify it
	10	* under the terms of the GNU General Public Licenseas published by the Free
	11	* Software Foundation; either version 2 of the License, or (at your option)
	12	* any later version.
	13	*
	14	* This program is distributed in the hope that it will be useful,but WITHOUT
	15	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	16	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	17	* more details.
	18
	19	* You should have received a copy of the GNU General Public License along
	20	* with this program; if not, write to the Free Software Foundation, Inc.,
	21	* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
	22	*/
	23
	24	#ifndef _ZEBRA_ISIS_FLAGS_H
	25	#define _ZEBRA_ISIS_FLAGS_H
	26
	27	/* The grand plan is to support 1024 circuits so we have 32*32 bit flags
	28	* the support will be achived using the newest drafts */
f390d2c7	29	#define ISIS_MAX_CIRCUITS 32 /* = 1024 / /FIXME:defined in lsp.h as well */
eb5d44eb	30
f390d2c7	31	struct flags *new_flags (int size);
	32	int flags_get_index (struct flags *flags);
	33	void flags_free_index (struct flags *flags, int index);
eb5d44eb	34
f390d2c7	35	int flags_any_set (u_int32_t * flags);
eb5d44eb	36
	37	#define ISIS_SET_FLAG(F,C) \
	38	F[C->idx>>5] \|= (1<<(C->idx & 0x1F));
	39
	40	#define ISIS_CLEAR_FLAG(F,C) \
	41	F[C->idx>>5] &= ~(1<<(C->idx & 0x1F));
	42
	43	#define ISIS_CHECK_FLAG(F, C) F[(C)->idx>>5] & (1<<(C->idx & 0x1F))
	44
	45	/* sets all u_32int_t flags to 1 */
	46	#define ISIS_FLAGS_SET_ALL(FLAGS) \
	47	memset(FLAGS,0xFF,ISIS_MAX_CIRCUITS*4);
	48
	49	#define ISIS_FLAGS_CLEAR_ALL(FLAGS) \
	50	memset(FLAGS,0x00,ISIS_MAX_CIRCUITS*4);
	51
	52	#endif /* _ZEBRA_ISIS_FLAGS_H */