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718e3744 | 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 | * | |
896014f4 DL |
16 | * You should have received a copy of the GNU General Public License along |
17 | * with this program; see the file COPYING; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
718e3744 | 19 | */ |
20 | ||
5b73a671 | 21 | #ifndef _ZEBRA_INTERFACE_H |
22 | #define _ZEBRA_INTERFACE_H | |
23 | ||
24 | #include "redistribute.h" | |
12f6fb97 | 25 | #include "vrf.h" |
5b73a671 | 26 | |
ca776988 | 27 | #ifdef HAVE_IRDP |
28 | #include "zebra/irdp.h" | |
29 | #endif | |
30 | ||
718e3744 | 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. */ | |
bfac8dcd | 37 | #define IF_ZEBRA_SHUTDOWN_OFF 0 |
718e3744 | 38 | #define IF_ZEBRA_SHUTDOWN_ON 1 |
718e3744 | 39 | |
8da4e946 | 40 | #if defined (HAVE_RTADV) |
6eb0c5ab | 41 | /* Router advertisement parameter. From RFC4861, RFC6275 and RFC4191. */ |
718e3744 | 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 | |
7cee1bb1 | 50 | Router Advertisements from the interface, in milliseconds. |
6eb0c5ab DO |
51 | MUST be no less than 70 ms [RFC6275 7.5] and no greater |
52 | than 1800000 ms [RFC4861 6.2.1]. | |
718e3744 | 53 | |
7cee1bb1 | 54 | Default: 600000 milliseconds */ |
718e3744 | 55 | int MaxRtrAdvInterval; |
7cee1bb1 | 56 | #define RTADV_MAX_RTR_ADV_INTERVAL 600000 |
718e3744 | 57 | |
58 | /* The minimum time allowed between sending unsolicited multicast | |
7cee1bb1 | 59 | Router Advertisements from the interface, in milliseconds. |
6eb0c5ab | 60 | MUST be no less than 30 ms [RFC6275 7.5]. |
7cee1bb1 | 61 | MUST be no greater than .75 * MaxRtrAdvInterval. |
718e3744 | 62 | |
63 | Default: 0.33 * MaxRtrAdvInterval */ | |
d660f698 | 64 | int MinRtrAdvInterval; /* This field is currently unused. */ |
718e3744 | 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; | |
d660f698 | 126 | #define RTADV_MAX_RTRLIFETIME 9000 /* 2.5 hours */ |
718e3744 | 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. */ | |
52dc7ee6 | 135 | struct list *AdvPrefixList; |
7cee1bb1 | 136 | |
137 | /* The TRUE/FALSE value to be placed in the "Home agent" | |
6eb0c5ab | 138 | flag field in the Router Advertisement. See [RFC6275 7.1]. |
7cee1bb1 | 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 | |
6eb0c5ab | 161 | option. See [RFC 6275 7.3] |
7cee1bb1 | 162 | |
163 | Default: FALSE */ | |
164 | int AdvIntervalOption; | |
b60668d0 CC |
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. */ | |
6c9678b4 DD |
172 | |
173 | u_char inFastRexmit; /* True if we're rexmits faster than usual */ | |
4a04e5f7 | 174 | u_char configured; /* Has operator configured RA? */ |
6c9678b4 DD |
175 | int NumFastReXmitsRemain; /* Loaded first with number of fast rexmits to do */ |
176 | ||
177 | #define RTADV_FAST_REXMIT_PERIOD 1 /* 1 sec */ | |
178 | #define RTADV_NUM_FAST_REXMITS 4 /* Fast Rexmit RA 4 times on certain events */ | |
718e3744 | 179 | }; |
180 | ||
8da4e946 | 181 | #endif /* HAVE_RTADV */ |
718e3744 | 182 | |
183 | /* `zebra' daemon local interface structure. */ | |
184 | struct zebra_if | |
185 | { | |
186 | /* Shutdown configuration. */ | |
187 | u_char shutdown; | |
188 | ||
189 | /* Multicast configuration. */ | |
190 | u_char multicast; | |
191 | ||
192 | /* Router advertise configuration. */ | |
193 | u_char rtadv_enable; | |
194 | ||
eef1fe11 | 195 | /* Installed addresses chains tree. */ |
196 | struct route_table *ipv4_subnets; | |
197 | ||
55ce4d3a CF |
198 | /* Information about up/down changes */ |
199 | unsigned int up_count; | |
200 | char up_last[QUAGGA_TIMESTAMP_LEN]; | |
201 | unsigned int down_count; | |
202 | char down_last[QUAGGA_TIMESTAMP_LEN]; | |
203 | ||
8da4e946 | 204 | #if defined(HAVE_RTADV) |
718e3744 | 205 | struct rtadvconf rtadv; |
795b5abf | 206 | unsigned int ra_sent, ra_rcvd; |
8da4e946 | 207 | #endif /* HAVE_RTADV */ |
ca776988 | 208 | |
209 | #ifdef HAVE_IRDP | |
210 | struct irdp_interface irdp; | |
211 | #endif | |
212 | ||
8ccc7e80 TT |
213 | #ifdef HAVE_STRUCT_SOCKADDR_DL |
214 | union { | |
215 | /* note that sdl_storage is never accessed, it only exists to make space. | |
216 | * all actual uses refer to sdl - but use sizeof(sdl_storage)! this fits | |
217 | * best with C aliasing rules. */ | |
218 | struct sockaddr_dl sdl; | |
219 | struct sockaddr_storage sdl_storage; | |
220 | }; | |
221 | #endif | |
222 | ||
5c78b3d0 | 223 | #ifdef SUNOS_5 |
224 | /* the real IFF_UP state of the primary interface. | |
225 | * need this to differentiate between all interfaces being | |
226 | * down (but primary still plumbed) and primary having gone | |
227 | * ~IFF_UP, and all addresses gone. | |
228 | */ | |
229 | u_char primary_state; | |
230 | #endif /* SUNOS_5 */ | |
986aa00f | 231 | |
232 | /* ptm enable configuration */ | |
233 | u_char ptm_enable; | |
718e3744 | 234 | }; |
235 | ||
12f6fb97 DS |
236 | |
237 | extern struct interface *if_lookup_by_index_per_ns (struct zebra_ns *, u_int32_t); | |
b8af3fbb | 238 | extern struct interface *if_lookup_by_name_per_ns (struct zebra_ns *, const char *); |
12f6fb97 | 239 | extern struct interface *if_link_per_ns (struct zebra_ns *, struct interface *); |
a815b788 | 240 | extern const char *ifindex2ifname_per_ns (struct zebra_ns *, unsigned int); |
241 | ||
12f6fb97 | 242 | extern void if_unlink_per_ns (struct interface *); |
5c610faf DS |
243 | extern void if_nbr_ipv6ll_to_ipv4ll_neigh_update (struct interface *ifp, |
244 | struct in6_addr *address, int add); | |
245 | extern void if_nbr_ipv6ll_to_ipv4ll_neigh_del_all (struct interface *ifp); | |
a1ac18c4 | 246 | extern void if_delete_update (struct interface *ifp); |
247 | extern void if_add_update (struct interface *ifp); | |
248 | extern void if_up (struct interface *); | |
249 | extern void if_down (struct interface *); | |
250 | extern void if_refresh (struct interface *); | |
5c78b3d0 | 251 | extern void if_flags_update (struct interface *, uint64_t); |
a1ac18c4 | 252 | extern int if_subnet_add (struct interface *, struct connected *); |
253 | extern int if_subnet_delete (struct interface *, struct connected *); | |
b6120505 | 254 | extern int ipv6_address_configured (struct interface *ifp); |
c8e264b6 | 255 | extern void if_handle_vrf_change (struct interface *ifp, vrf_id_t vrf_id); |
718e3744 | 256 | |
12f6fb97 DS |
257 | extern void vrf_add_update (struct vrf *vrfp); |
258 | ||
718e3744 | 259 | #ifdef HAVE_PROC_NET_DEV |
f28b0e57 | 260 | extern void ifstat_update_proc (void); |
718e3744 | 261 | #endif /* HAVE_PROC_NET_DEV */ |
262 | #ifdef HAVE_NET_RT_IFLIST | |
a1ac18c4 | 263 | extern void ifstat_update_sysctl (void); |
718e3744 | 264 | |
265 | #endif /* HAVE_NET_RT_IFLIST */ | |
266 | #ifdef HAVE_PROC_NET_DEV | |
a1ac18c4 | 267 | extern int interface_list_proc (void); |
718e3744 | 268 | #endif /* HAVE_PROC_NET_DEV */ |
269 | #ifdef HAVE_PROC_NET_IF_INET6 | |
a1ac18c4 | 270 | extern int ifaddr_proc_ipv6 (void); |
718e3744 | 271 | #endif /* HAVE_PROC_NET_IF_INET6 */ |
272 | ||
5b73a671 | 273 | #endif /* _ZEBRA_INTERFACE_H */ |