Annotation of embedaddon/pimdd/mrt.h, revision 1.1.1.1
1.1 misho 1: /*
2: * Copyright (c) 1998 by the University of Oregon.
3: * All rights reserved.
4: *
5: * Permission to use, copy, modify, and distribute this software and
6: * its documentation in source and binary forms for lawful
7: * purposes and without fee is hereby granted, provided
8: * that the above copyright notice appear in all copies and that both
9: * the copyright notice and this permission notice appear in supporting
10: * documentation, and that any documentation, advertising materials,
11: * and other materials related to such distribution and use acknowledge
12: * that the software was developed by the University of Oregon.
13: * The name of the University of Oregon may not be used to endorse or
14: * promote products derived from this software without specific prior
15: * written permission.
16: *
17: * THE UNIVERSITY OF OREGON DOES NOT MAKE ANY REPRESENTATIONS
18: * ABOUT THE SUITABILITY OF THIS SOFTWARE FOR ANY PURPOSE. THIS SOFTWARE IS
19: * PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
20: * INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
21: * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND
22: * NON-INFRINGEMENT.
23: *
24: * IN NO EVENT SHALL UO, OR ANY OTHER CONTRIBUTOR BE LIABLE FOR ANY
25: * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES, WHETHER IN CONTRACT,
26: * TORT, OR OTHER FORM OF ACTION, ARISING OUT OF OR IN CONNECTION WITH,
27: * THE USE OR PERFORMANCE OF THIS SOFTWARE.
28: *
29: * Other copyrights might apply to parts of this software and are so
30: * noted when applicable.
31: */
32: /*
33: * Questions concerning this software should be directed to
34: * Kurt Windisch (kurtw@antc.uoregon.edu)
35: *
36: * $Id: mrt.h,v 1.11 1998/05/29 21:58:23 kurtw Exp $
37: */
38: /*
39: * Part of this program has been derived from PIM sparse-mode pimd.
40: * The pimd program is covered by the license in the accompanying file
41: * named "LICENSE.pimd".
42: *
43: * The pimd program is COPYRIGHT 1998 by University of Southern California.
44: *
45: * Part of this program has been derived from mrouted.
46: * The mrouted program is covered by the license in the accompanying file
47: * named "LICENSE.mrouted".
48: *
49: * The mrouted program is COPYRIGHT 1989 by The Board of Trustees of
50: * Leland Stanford Junior University.
51: *
52: */
53:
54: #define MRTF_SPT 0x0001 /* iif toward source */
55: #define MRTF_WC 0x0002 /* (*,G) entry */
56: #define MRTF_RP 0x0004 /* iif toward RP */
57: #define MRTF_NEW 0x0008 /* new created routing entry */
58: #define MRTF_IIF_REGISTER 0x0020 /* ??? */
59: #define MRTF_REGISTER 0x0080 /* ??? */
60: #define MRTF_KERNEL_CACHE 0x0200 /* a mirror for the kernel cache */
61: #define MRTF_NULL_OIF 0x0400 /* null oif cache.. ??? */
62: #define MRTF_REG_SUPP 0x0800 /* register suppress ??? */
63: #define MRTF_ASSERTED 0x1000 /* upstream is not that of src ??? */
64: #define MRTF_SG 0x2000 /* (S,G) pure, not hanging off of (*,G)*/
65: #define MRTF_PMBR 0x4000 /* (*,*,RP) entry (for interop) */
66:
67: /* Macro to duplicate oif info (oif bits, timers) */
68: #define VOIF_COPY(from, to) \
69: do { \
70: VIFM_COPY((from)->joined_oifs, (to)->joined_oifs); \
71: VIFM_COPY((from)->oifs, (to)->oifs); \
72: VIFM_COPY((from)->leaves, (to)->leaves); \
73: VIFM_COPY((from)->pruned_oifs, (to)->pruned_oifs); \
74: bcopy((from)->prune_timers, (to)->prune_timers, \
75: numvifs*sizeof((from)->prune_timers[0])); \
76: bcopy((from)->prune_delay_timerids, \
77: (to)->prune_delay_timerids, \
78: numvifs*sizeof((from)->prune_delay_timerids[0])); \
79: (to)->join_delay_timerid = (from)->join_delay_timerid; \
80: } while (0)
81:
82: #ifdef SAVE_MEMORY
83: #define FREE_MRTENTRY(mrtentry_ptr) \
84: do { \
85: u_int16 i; \
86: u_long *il_ptr; \
87: free((char *)((mrtentry_ptr)->prune_timers)); \
88: for(i=0, il_ptr=(mrtentry_ptr)->prune_delay_timerids; \
89: i<numvifs; i++, il_ptr++) \
90: timer_clearTimer(*il_ptr); \
91: free((char *)((mrtentry_ptr)->prune_delay_timerids)); \
92: timer_clearTimer((mrtentry_ptr)->join_delay_timerid); \
93: delete_pim_graft_entry((mrtentry_ptr)); \
94: free((char *)(mrtentry_ptr)); \
95: } while (0)
96: #else
97: #define FREE_MRTENTRY(mrtentry_ptr) \
98: do { \
99: u_int16 i; \
100: u_long *il_ptr; \
101: free((char *)((mrtentry_ptr)->prune_timers)); \
102: for(i=0, il_ptr=(mrtentry_ptr)->prune_delay_timerids; \
103: i<total_interfaces; i++, il_ptr++) \
104: timer_clearTimer(*il_ptr); \
105: free((char *)((mrtentry_ptr)->prune_delay_timerids)); \
106: free((char *)((mrtentry_ptr)->last_assert)); \
107: free((char *)((mrtentry_ptr)->last_prune)); \
108: timer_clearTimer((mrtentry_ptr)->join_delay_timerid); \
109: delete_pim_graft_entry((mrtentry_ptr)); \
110: free((char *)(mrtentry_ptr)); \
111: } while (0)
112: #endif /* SAVE_MEMORY */
113:
114: typedef struct pim_nbr_entry {
115: struct pim_nbr_entry *next; /* link to next neighbor */
116: struct pim_nbr_entry *prev; /* link to prev neighbor */
117: u_int32 address; /* neighbor address */
118: vifi_t vifi; /* which interface */
119: u_int16 timer; /* for timing out neighbor */
120: } pim_nbr_entry_t;
121:
122:
123: /*
124: * Used to get forwarded data related counts (number of packet, number of
125: * bits, etc)
126: */
127: struct sg_count {
128: u_long pktcnt; /* Number of packets for (s,g) */
129: u_long bytecnt; /* Number of bytes for (s,g) */
130: u_long wrong_if; /* Number of packets received on wrong iif for (s,g) */
131: };
132:
133: typedef struct mrtentry mrtentry_t;
134: typedef struct pim_graft_entry {
135: struct pim_graft_entry *next;
136: struct pim_graft_entry *prev;
137: mrtentry_t *mrtlink;
138: } pim_graft_entry_t;
139:
140:
141: typedef struct srcentry {
142: struct srcentry *next; /* link to next entry */
143: struct srcentry *prev; /* link to prev entry */
144: u_int32 address; /* source or RP address */
145: struct mrtentry *mrtlink; /* link to routing entries */
146: vifi_t incoming; /* incoming vif */
147: struct pim_nbr_entry *upstream; /* upstream router */
148: u_int32 metric; /* Unicast Routing Metric to the source */
149: u_int32 preference; /* The metric preference (for assers)*/
150: u_int16 timer; /* Entry timer??? Delete? */
151: } srcentry_t;
152:
153:
154: typedef struct grpentry {
155: struct grpentry *next; /* link to next entry */
156: struct grpentry *prev; /* link to prev entry */
157: u_int32 group; /* subnet group of multicasts */
158: struct mrtentry *mrtlink; /* link to (S,G) routing entries */
159: } grpentry_t;
160:
161: struct mrtentry {
162: struct mrtentry *grpnext; /* next entry of same group */
163: struct mrtentry *grpprev; /* prev entry of same group */
164: struct mrtentry *srcnext; /* next entry of same source */
165: struct mrtentry *srcprev; /* prev entry of same source */
166: struct grpentry *group; /* pointer to group entry */
167: struct srcentry *source; /* pointer to source entry (or RP) */
168: vifi_t incoming; /* the iif (either toward S or RP) */
169: vifbitmap_t oifs; /* The current result oifs */
170: vifbitmap_t pruned_oifs; /* The pruned oifs (Prune received) */
171: vifbitmap_t leaves; /* Has directly connected members */
172: struct pim_nbr_entry *upstream; /* upstream router, needed because
173: * of the asserts it may be different
174: * than the source (or RP) upstream
175: * router.
176: */
177: u_int32 metric; /* Metric for the upstream */
178: u_int32 preference; /* preference for the upstream */
179: u_int16 *prune_timers; /* prune timer list */
180: u_long *prune_delay_timerids; /* timers for LAN prunes */
181: u_long join_delay_timerid; /* timer for delay joins */
182: u_int16 flags; /* The MRTF_* flags */
183: u_int16 timer; /* entry timer */
184: u_int assert_timer;
185: struct sg_count sg_count;
186: u_long *last_assert; /* time for last data-driven assert */
187: u_long *last_prune; /* time for last data-driven prune */
188: pim_graft_entry_t *graft; /* Pointer into graft entry list */
189: #ifdef RSRR
190: struct rsrr_cache *rsrr_cache; /* Used to save RSRR requests for
191: * routes change notification.
192: */
193: #endif /* RSRR */
194: };
195:
196:
197: struct vif_count {
198: u_long icount; /* Input packet count on vif */
199: u_long ocount; /* Output packet count on vif */
200: u_long ibytes; /* Input byte count on vif */
201: u_long obytes; /* Output byte count on vif */
202: };
203:
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