Annotation of embedaddon/quagga/zebra/interface.h, revision 1.1.1.3
1.1 misho 1: /* Interface function header.
2: * Copyright (C) 1999 Kunihiro Ishiguro
3: *
4: * This file is part of GNU Zebra.
5: *
6: * GNU Zebra is free software; you can redistribute it and/or modify it
7: * under the terms of the GNU General Public License as published by the
8: * Free Software Foundation; either version 2, or (at your option) any
9: * later version.
10: *
11: * GNU Zebra is distributed in the hope that it will be useful, but
12: * WITHOUT ANY WARRANTY; without even the implied warranty of
13: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14: * General Public License for more details.
15: *
16: * You should have received a copy of the GNU General Public License
17: * along with GNU Zebra; see the file COPYING. If not, write to the Free
18: * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
19: * 02111-1307, USA.
20: */
21:
22: #ifndef _ZEBRA_INTERFACE_H
23: #define _ZEBRA_INTERFACE_H
24:
25: #include "redistribute.h"
26:
27: #ifdef HAVE_IRDP
28: #include "zebra/irdp.h"
29: #endif
30:
31: /* For interface multicast configuration. */
32: #define IF_ZEBRA_MULTICAST_UNSPEC 0
33: #define IF_ZEBRA_MULTICAST_ON 1
34: #define IF_ZEBRA_MULTICAST_OFF 2
35:
36: /* For interface shutdown configuration. */
1.1.1.3 ! misho 37: #define IF_ZEBRA_SHUTDOWN_OFF 0
1.1 misho 38: #define IF_ZEBRA_SHUTDOWN_ON 1
39:
1.1.1.3 ! misho 40: #if defined (HAVE_RTADV)
1.1.1.2 misho 41: /* Router advertisement parameter. From RFC4861, RFC6275 and RFC4191. */
1.1 misho 42: struct rtadvconf
43: {
44: /* A flag indicating whether or not the router sends periodic Router
45: Advertisements and responds to Router Solicitations.
46: Default: FALSE */
47: int AdvSendAdvertisements;
48:
49: /* The maximum time allowed between sending unsolicited multicast
50: Router Advertisements from the interface, in milliseconds.
1.1.1.2 misho 51: MUST be no less than 70 ms [RFC6275 7.5] and no greater
52: than 1800000 ms [RFC4861 6.2.1].
1.1 misho 53:
54: Default: 600000 milliseconds */
55: int MaxRtrAdvInterval;
56: #define RTADV_MAX_RTR_ADV_INTERVAL 600000
57:
58: /* The minimum time allowed between sending unsolicited multicast
59: Router Advertisements from the interface, in milliseconds.
1.1.1.2 misho 60: MUST be no less than 30 ms [RFC6275 7.5].
1.1 misho 61: MUST be no greater than .75 * MaxRtrAdvInterval.
62:
63: Default: 0.33 * MaxRtrAdvInterval */
1.1.1.2 misho 64: int MinRtrAdvInterval; /* This field is currently unused. */
1.1 misho 65: #define RTADV_MIN_RTR_ADV_INTERVAL (0.33 * RTADV_MAX_RTR_ADV_INTERVAL)
66:
67: /* Unsolicited Router Advertisements' interval timer. */
68: int AdvIntervalTimer;
69:
70: /* The TRUE/FALSE value to be placed in the "Managed address
71: configuration" flag field in the Router Advertisement. See
72: [ADDRCONF].
73:
74: Default: FALSE */
75: int AdvManagedFlag;
76:
77:
78: /* The TRUE/FALSE value to be placed in the "Other stateful
79: configuration" flag field in the Router Advertisement. See
80: [ADDRCONF].
81:
82: Default: FALSE */
83: int AdvOtherConfigFlag;
84:
85: /* The value to be placed in MTU options sent by the router. A
86: value of zero indicates that no MTU options are sent.
87:
88: Default: 0 */
89: int AdvLinkMTU;
90:
91:
92: /* The value to be placed in the Reachable Time field in the Router
93: Advertisement messages sent by the router. The value zero means
94: unspecified (by this router). MUST be no greater than 3,600,000
95: milliseconds (1 hour).
96:
97: Default: 0 */
98: u_int32_t AdvReachableTime;
99: #define RTADV_MAX_REACHABLE_TIME 3600000
100:
101:
102: /* The value to be placed in the Retrans Timer field in the Router
103: Advertisement messages sent by the router. The value zero means
104: unspecified (by this router).
105:
106: Default: 0 */
107: int AdvRetransTimer;
108:
109: /* The default value to be placed in the Cur Hop Limit field in the
110: Router Advertisement messages sent by the router. The value
111: should be set to that current diameter of the Internet. The
112: value zero means unspecified (by this router).
113:
114: Default: The value specified in the "Assigned Numbers" RFC
115: [ASSIGNED] that was in effect at the time of implementation. */
116: int AdvCurHopLimit;
117:
118: /* The value to be placed in the Router Lifetime field of Router
119: Advertisements sent from the interface, in seconds. MUST be
120: either zero or between MaxRtrAdvInterval and 9000 seconds. A
121: value of zero indicates that the router is not to be used as a
122: default router.
123:
124: Default: 3 * MaxRtrAdvInterval */
125: int AdvDefaultLifetime;
1.1.1.2 misho 126: #define RTADV_MAX_RTRLIFETIME 9000 /* 2.5 hours */
1.1 misho 127:
128: /* A list of prefixes to be placed in Prefix Information options in
129: Router Advertisement messages sent from the interface.
130:
131: Default: all prefixes that the router advertises via routing
132: protocols as being on-link for the interface from which the
133: advertisement is sent. The link-local prefix SHOULD NOT be
134: included in the list of advertised prefixes. */
135: struct list *AdvPrefixList;
136:
137: /* The TRUE/FALSE value to be placed in the "Home agent"
1.1.1.2 misho 138: flag field in the Router Advertisement. See [RFC6275 7.1].
1.1 misho 139:
140: Default: FALSE */
141: int AdvHomeAgentFlag;
142: #ifndef ND_RA_FLAG_HOME_AGENT
143: #define ND_RA_FLAG_HOME_AGENT 0x20
144: #endif
145:
146: /* The value to be placed in Home Agent Information option if Home
147: Flag is set.
148: Default: 0 */
149: int HomeAgentPreference;
150:
151: /* The value to be placed in Home Agent Information option if Home
152: Flag is set. Lifetime (seconds) MUST not be greater than 18.2
153: hours.
154: The value 0 has special meaning: use of AdvDefaultLifetime value.
155:
156: Default: 0 */
157: int HomeAgentLifetime;
158: #define RTADV_MAX_HALIFETIME 65520 /* 18.2 hours */
159:
160: /* The TRUE/FALSE value to insert or not an Advertisement Interval
1.1.1.2 misho 161: option. See [RFC 6275 7.3]
1.1 misho 162:
163: Default: FALSE */
164: int AdvIntervalOption;
165:
166: /* The value to be placed in the Default Router Preference field of
167: a router advertisement. See [RFC 4191 2.1 & 2.2]
168:
169: Default: 0 (medium) */
170: int DefaultPreference;
171: #define RTADV_PREF_MEDIUM 0x0 /* Per RFC4191. */
172: };
173:
1.1.1.3 ! misho 174: #endif /* HAVE_RTADV */
1.1 misho 175:
176: /* `zebra' daemon local interface structure. */
177: struct zebra_if
178: {
179: /* Shutdown configuration. */
180: u_char shutdown;
181:
182: /* Multicast configuration. */
183: u_char multicast;
184:
185: /* Router advertise configuration. */
186: u_char rtadv_enable;
187:
188: /* Installed addresses chains tree. */
189: struct route_table *ipv4_subnets;
190:
1.1.1.3 ! misho 191: #if defined(HAVE_RTADV)
1.1 misho 192: struct rtadvconf rtadv;
193: #endif /* RTADV */
194:
195: #ifdef HAVE_IRDP
196: struct irdp_interface irdp;
197: #endif
198:
1.1.1.3 ! misho 199: #ifdef HAVE_STRUCT_SOCKADDR_DL
! 200: union {
! 201: /* note that sdl_storage is never accessed, it only exists to make space.
! 202: * all actual uses refer to sdl - but use sizeof(sdl_storage)! this fits
! 203: * best with C aliasing rules. */
! 204: struct sockaddr_dl sdl;
! 205: struct sockaddr_storage sdl_storage;
! 206: };
! 207: #endif
! 208:
1.1 misho 209: #ifdef SUNOS_5
210: /* the real IFF_UP state of the primary interface.
211: * need this to differentiate between all interfaces being
212: * down (but primary still plumbed) and primary having gone
213: * ~IFF_UP, and all addresses gone.
214: */
215: u_char primary_state;
216: #endif /* SUNOS_5 */
217: };
218:
219: extern void if_delete_update (struct interface *ifp);
220: extern void if_add_update (struct interface *ifp);
221: extern void if_up (struct interface *);
222: extern void if_down (struct interface *);
223: extern void if_refresh (struct interface *);
224: extern void if_flags_update (struct interface *, uint64_t);
225: extern int if_subnet_add (struct interface *, struct connected *);
226: extern int if_subnet_delete (struct interface *, struct connected *);
227:
228: #ifdef HAVE_PROC_NET_DEV
229: extern void ifstat_update_proc (void);
230: #endif /* HAVE_PROC_NET_DEV */
231: #ifdef HAVE_NET_RT_IFLIST
232: extern void ifstat_update_sysctl (void);
233:
234: #endif /* HAVE_NET_RT_IFLIST */
235: #ifdef HAVE_PROC_NET_DEV
236: extern int interface_list_proc (void);
237: #endif /* HAVE_PROC_NET_DEV */
238: #ifdef HAVE_PROC_NET_IF_INET6
239: extern int ifaddr_proc_ipv6 (void);
240: #endif /* HAVE_PROC_NET_IF_INET6 */
241:
242: #endif /* _ZEBRA_INTERFACE_H */
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