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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" |
2eb27eec | 26 | #include "hook.h" |
ca776988 | 27 | |
6675513d | 28 | #include "zebra/zebra_l2.h" |
29 | ||
718e3744 | 30 | /* For interface multicast configuration. */ |
31 | #define IF_ZEBRA_MULTICAST_UNSPEC 0 | |
32 | #define IF_ZEBRA_MULTICAST_ON 1 | |
33 | #define IF_ZEBRA_MULTICAST_OFF 2 | |
34 | ||
35 | /* For interface shutdown configuration. */ | |
bfac8dcd | 36 | #define IF_ZEBRA_SHUTDOWN_OFF 0 |
718e3744 | 37 | #define IF_ZEBRA_SHUTDOWN_ON 1 |
718e3744 | 38 | |
d62a17ae | 39 | #if defined(HAVE_RTADV) |
6eb0c5ab | 40 | /* Router advertisement parameter. From RFC4861, RFC6275 and RFC4191. */ |
d62a17ae | 41 | struct rtadvconf { |
42 | /* A flag indicating whether or not the router sends periodic Router | |
43 | Advertisements and responds to Router Solicitations. | |
44 | Default: FALSE */ | |
45 | int AdvSendAdvertisements; | |
46 | ||
47 | /* The maximum time allowed between sending unsolicited multicast | |
48 | Router Advertisements from the interface, in milliseconds. | |
49 | MUST be no less than 70 ms [RFC6275 7.5] and no greater | |
50 | than 1800000 ms [RFC4861 6.2.1]. | |
51 | ||
52 | Default: 600000 milliseconds */ | |
53 | int MaxRtrAdvInterval; | |
7cee1bb1 | 54 | #define RTADV_MAX_RTR_ADV_INTERVAL 600000 |
718e3744 | 55 | |
d62a17ae | 56 | /* The minimum time allowed between sending unsolicited multicast |
57 | Router Advertisements from the interface, in milliseconds. | |
58 | MUST be no less than 30 ms [RFC6275 7.5]. | |
59 | MUST be no greater than .75 * MaxRtrAdvInterval. | |
718e3744 | 60 | |
d62a17ae | 61 | Default: 0.33 * MaxRtrAdvInterval */ |
62 | int MinRtrAdvInterval; /* This field is currently unused. */ | |
718e3744 | 63 | #define RTADV_MIN_RTR_ADV_INTERVAL (0.33 * RTADV_MAX_RTR_ADV_INTERVAL) |
64 | ||
d62a17ae | 65 | /* Unsolicited Router Advertisements' interval timer. */ |
66 | int AdvIntervalTimer; | |
718e3744 | 67 | |
d62a17ae | 68 | /* The TRUE/FALSE value to be placed in the "Managed address |
69 | configuration" flag field in the Router Advertisement. See | |
70 | [ADDRCONF]. | |
718e3744 | 71 | |
d62a17ae | 72 | Default: FALSE */ |
73 | int AdvManagedFlag; | |
718e3744 | 74 | |
718e3744 | 75 | |
d62a17ae | 76 | /* The TRUE/FALSE value to be placed in the "Other stateful |
77 | configuration" flag field in the Router Advertisement. See | |
78 | [ADDRCONF]. | |
718e3744 | 79 | |
d62a17ae | 80 | Default: FALSE */ |
81 | int AdvOtherConfigFlag; | |
718e3744 | 82 | |
d62a17ae | 83 | /* The value to be placed in MTU options sent by the router. A |
84 | value of zero indicates that no MTU options are sent. | |
718e3744 | 85 | |
d62a17ae | 86 | Default: 0 */ |
87 | int AdvLinkMTU; | |
718e3744 | 88 | |
718e3744 | 89 | |
d62a17ae | 90 | /* The value to be placed in the Reachable Time field in the Router |
91 | Advertisement messages sent by the router. The value zero means | |
92 | unspecified (by this router). MUST be no greater than 3,600,000 | |
93 | milliseconds (1 hour). | |
718e3744 | 94 | |
d62a17ae | 95 | Default: 0 */ |
d7c0a89a | 96 | uint32_t AdvReachableTime; |
d62a17ae | 97 | #define RTADV_MAX_REACHABLE_TIME 3600000 |
718e3744 | 98 | |
d62a17ae | 99 | /* The value to be placed in the Retrans Timer field in the Router |
100 | Advertisement messages sent by the router. The value zero means | |
101 | unspecified (by this router). | |
718e3744 | 102 | |
d62a17ae | 103 | Default: 0 */ |
104 | int AdvRetransTimer; | |
718e3744 | 105 | |
d62a17ae | 106 | /* The default value to be placed in the Cur Hop Limit field in the |
107 | Router Advertisement messages sent by the router. The value | |
108 | should be set to that current diameter of the Internet. The | |
109 | value zero means unspecified (by this router). | |
718e3744 | 110 | |
d62a17ae | 111 | Default: The value specified in the "Assigned Numbers" RFC |
112 | [ASSIGNED] that was in effect at the time of implementation. */ | |
113 | int AdvCurHopLimit; | |
718e3744 | 114 | |
d62a17ae | 115 | /* The value to be placed in the Router Lifetime field of Router |
116 | Advertisements sent from the interface, in seconds. MUST be | |
117 | either zero or between MaxRtrAdvInterval and 9000 seconds. A | |
118 | value of zero indicates that the router is not to be used as a | |
119 | default router. | |
718e3744 | 120 | |
d62a17ae | 121 | Default: 3 * MaxRtrAdvInterval */ |
122 | int AdvDefaultLifetime; | |
d660f698 | 123 | #define RTADV_MAX_RTRLIFETIME 9000 /* 2.5 hours */ |
718e3744 | 124 | |
d62a17ae | 125 | /* A list of prefixes to be placed in Prefix Information options in |
126 | Router Advertisement messages sent from the interface. | |
718e3744 | 127 | |
d62a17ae | 128 | Default: all prefixes that the router advertises via routing |
129 | protocols as being on-link for the interface from which the | |
130 | advertisement is sent. The link-local prefix SHOULD NOT be | |
131 | included in the list of advertised prefixes. */ | |
132 | struct list *AdvPrefixList; | |
7cee1bb1 | 133 | |
d62a17ae | 134 | /* The TRUE/FALSE value to be placed in the "Home agent" |
135 | flag field in the Router Advertisement. See [RFC6275 7.1]. | |
7cee1bb1 | 136 | |
d62a17ae | 137 | Default: FALSE */ |
138 | int AdvHomeAgentFlag; | |
7cee1bb1 | 139 | #ifndef ND_RA_FLAG_HOME_AGENT |
140 | #define ND_RA_FLAG_HOME_AGENT 0x20 | |
141 | #endif | |
142 | ||
d62a17ae | 143 | /* The value to be placed in Home Agent Information option if Home |
144 | Flag is set. | |
145 | Default: 0 */ | |
146 | int HomeAgentPreference; | |
147 | ||
148 | /* The value to be placed in Home Agent Information option if Home | |
149 | Flag is set. Lifetime (seconds) MUST not be greater than 18.2 | |
150 | hours. | |
151 | The value 0 has special meaning: use of AdvDefaultLifetime value. | |
152 | ||
153 | Default: 0 */ | |
154 | int HomeAgentLifetime; | |
7cee1bb1 | 155 | #define RTADV_MAX_HALIFETIME 65520 /* 18.2 hours */ |
156 | ||
d62a17ae | 157 | /* The TRUE/FALSE value to insert or not an Advertisement Interval |
158 | option. See [RFC 6275 7.3] | |
7cee1bb1 | 159 | |
d62a17ae | 160 | Default: FALSE */ |
161 | int AdvIntervalOption; | |
b60668d0 | 162 | |
d62a17ae | 163 | /* The value to be placed in the Default Router Preference field of |
164 | a router advertisement. See [RFC 4191 2.1 & 2.2] | |
b60668d0 | 165 | |
d62a17ae | 166 | Default: 0 (medium) */ |
167 | int DefaultPreference; | |
b60668d0 | 168 | #define RTADV_PREF_MEDIUM 0x0 /* Per RFC4191. */ |
6c9678b4 | 169 | |
d7c0a89a | 170 | uint8_t inFastRexmit; /* True if we're rexmits faster than usual */ |
3ea48364 DS |
171 | |
172 | /* Track if RA was configured by BGP or by the Operator or both */ | |
d7c0a89a | 173 | uint8_t ra_configured; /* Was RA configured? */ |
3ea48364 DS |
174 | #define BGP_RA_CONFIGURED (1<<0) /* BGP configured RA? */ |
175 | #define VTY_RA_CONFIGURED (1<<1) /* Operator configured RA? */ | |
176 | #define VTY_RA_INTERVAL_CONFIGURED (1<<2) /* Operator configured RA interval */ | |
996c9314 LB |
177 | int NumFastReXmitsRemain; /* Loaded first with number of fast |
178 | rexmits to do */ | |
6c9678b4 DD |
179 | |
180 | #define RTADV_FAST_REXMIT_PERIOD 1 /* 1 sec */ | |
181 | #define RTADV_NUM_FAST_REXMITS 4 /* Fast Rexmit RA 4 times on certain events */ | |
718e3744 | 182 | }; |
183 | ||
8da4e946 | 184 | #endif /* HAVE_RTADV */ |
718e3744 | 185 | |
6675513d | 186 | /* Zebra interface type - ones of interest. */ |
d62a17ae | 187 | typedef enum { |
7a38782a DL |
188 | ZEBRA_IF_OTHER = 0, /* Anything else */ |
189 | ZEBRA_IF_VXLAN, /* VxLAN interface */ | |
190 | ZEBRA_IF_VRF, /* VRF device */ | |
191 | ZEBRA_IF_BRIDGE, /* bridge device */ | |
192 | ZEBRA_IF_VLAN, /* VLAN sub-interface */ | |
193 | ZEBRA_IF_MACVLAN, /* MAC VLAN interface*/ | |
6675513d | 194 | } zebra_iftype_t; |
195 | ||
196 | /* Zebra "slave" interface type */ | |
d62a17ae | 197 | typedef enum { |
198 | ZEBRA_IF_SLAVE_NONE, /* Not a slave */ | |
199 | ZEBRA_IF_SLAVE_VRF, /* Member of a VRF */ | |
200 | ZEBRA_IF_SLAVE_BRIDGE, /* Member of a bridge */ | |
201 | ZEBRA_IF_SLAVE_OTHER, /* Something else - e.g., bond slave */ | |
6675513d | 202 | } zebra_slave_iftype_t; |
203 | ||
2eb27eec DL |
204 | struct irdp_interface; |
205 | ||
718e3744 | 206 | /* `zebra' daemon local interface structure. */ |
d62a17ae | 207 | struct zebra_if { |
208 | /* Shutdown configuration. */ | |
d7c0a89a | 209 | uint8_t shutdown; |
718e3744 | 210 | |
d62a17ae | 211 | /* Multicast configuration. */ |
d7c0a89a | 212 | uint8_t multicast; |
718e3744 | 213 | |
d62a17ae | 214 | /* Router advertise configuration. */ |
d7c0a89a | 215 | uint8_t rtadv_enable; |
718e3744 | 216 | |
d62a17ae | 217 | /* Installed addresses chains tree. */ |
218 | struct route_table *ipv4_subnets; | |
eef1fe11 | 219 | |
d62a17ae | 220 | /* Information about up/down changes */ |
221 | unsigned int up_count; | |
222 | char up_last[QUAGGA_TIMESTAMP_LEN]; | |
223 | unsigned int down_count; | |
224 | char down_last[QUAGGA_TIMESTAMP_LEN]; | |
55ce4d3a | 225 | |
8da4e946 | 226 | #if defined(HAVE_RTADV) |
d62a17ae | 227 | struct rtadvconf rtadv; |
228 | unsigned int ra_sent, ra_rcvd; | |
8da4e946 | 229 | #endif /* HAVE_RTADV */ |
ca776988 | 230 | |
2eb27eec | 231 | struct irdp_interface *irdp; |
ca776988 | 232 | |
8ccc7e80 | 233 | #ifdef HAVE_STRUCT_SOCKADDR_DL |
d62a17ae | 234 | union { |
235 | /* note that sdl_storage is never accessed, it only exists to | |
236 | * make space. | |
237 | * all actual uses refer to sdl - but use sizeof(sdl_storage)! | |
238 | * this fits | |
239 | * best with C aliasing rules. */ | |
240 | struct sockaddr_dl sdl; | |
241 | struct sockaddr_storage sdl_storage; | |
242 | }; | |
8ccc7e80 TT |
243 | #endif |
244 | ||
5c78b3d0 | 245 | #ifdef SUNOS_5 |
d62a17ae | 246 | /* the real IFF_UP state of the primary interface. |
247 | * need this to differentiate between all interfaces being | |
248 | * down (but primary still plumbed) and primary having gone | |
249 | * ~IFF_UP, and all addresses gone. | |
250 | */ | |
d7c0a89a | 251 | uint8_t primary_state; |
5c78b3d0 | 252 | #endif /* SUNOS_5 */ |
986aa00f | 253 | |
d62a17ae | 254 | /* ptm enable configuration */ |
d7c0a89a | 255 | uint8_t ptm_enable; |
6675513d | 256 | |
d62a17ae | 257 | /* Zebra interface and "slave" interface type */ |
258 | zebra_iftype_t zif_type; | |
259 | zebra_slave_iftype_t zif_slave_type; | |
6675513d | 260 | |
d62a17ae | 261 | /* Additional L2 info, depends on zif_type */ |
262 | union zebra_l2if_info l2info; | |
6675513d | 263 | |
d62a17ae | 264 | /* For members of a bridge, link to bridge. */ |
265 | /* Note: If additional fields become necessary, this can be modified to | |
266 | * be a pointer to a dynamically allocd struct. | |
267 | */ | |
268 | struct zebra_l2info_brslave brslave_info; | |
6675513d | 269 | |
d62a17ae | 270 | /* Link fields - for sub-interfaces. */ |
271 | ifindex_t link_ifindex; | |
272 | struct interface *link; | |
dc7b3cae DS |
273 | |
274 | struct thread *speed_update; | |
20089ae2 DS |
275 | |
276 | /* | |
277 | * Does this interface have a v6 to v4 ll neighbor entry | |
278 | * for bgp unnumbered? | |
279 | */ | |
280 | bool v6_2_v4_ll_neigh_entry; | |
281 | struct in6_addr v6_2_v4_ll_addr6; | |
718e3744 | 282 | }; |
283 | ||
996c9314 LB |
284 | DECLARE_HOOK(zebra_if_extra_info, (struct vty * vty, struct interface *ifp), |
285 | (vty, ifp)) | |
286 | DECLARE_HOOK(zebra_if_config_wr, (struct vty * vty, struct interface *ifp), | |
287 | (vty, ifp)) | |
2eb27eec | 288 | |
d62a17ae | 289 | static inline void zebra_if_set_ziftype(struct interface *ifp, |
290 | zebra_iftype_t zif_type, | |
291 | zebra_slave_iftype_t zif_slave_type) | |
6675513d | 292 | { |
d62a17ae | 293 | struct zebra_if *zif; |
6675513d | 294 | |
d62a17ae | 295 | zif = (struct zebra_if *)ifp->info; |
296 | zif->zif_type = zif_type; | |
297 | zif->zif_slave_type = zif_slave_type; | |
6675513d | 298 | } |
299 | ||
d62a17ae | 300 | #define IS_ZEBRA_IF_VRF(ifp) \ |
301 | (((struct zebra_if *)(ifp->info))->zif_type == ZEBRA_IF_VRF) | |
302 | ||
303 | #define IS_ZEBRA_IF_BRIDGE(ifp) \ | |
304 | (((struct zebra_if *)(ifp->info))->zif_type == ZEBRA_IF_BRIDGE) | |
305 | ||
306 | #define IS_ZEBRA_IF_VLAN(ifp) \ | |
307 | (((struct zebra_if *)(ifp->info))->zif_type == ZEBRA_IF_VLAN) | |
308 | ||
309 | #define IS_ZEBRA_IF_VXLAN(ifp) \ | |
310 | (((struct zebra_if *)(ifp->info))->zif_type == ZEBRA_IF_VXLAN) | |
311 | ||
1a98c087 MK |
312 | #define IS_ZEBRA_IF_MACVLAN(ifp) \ |
313 | (((struct zebra_if *)(ifp->info))->zif_type == ZEBRA_IF_MACVLAN) | |
314 | ||
d62a17ae | 315 | #define IS_ZEBRA_IF_BRIDGE_SLAVE(ifp) \ |
316 | (((struct zebra_if *)(ifp->info))->zif_slave_type \ | |
317 | == ZEBRA_IF_SLAVE_BRIDGE) | |
318 | ||
319 | #define IS_ZEBRA_IF_VRF_SLAVE(ifp) \ | |
320 | (((struct zebra_if *)(ifp->info))->zif_slave_type == ZEBRA_IF_SLAVE_VRF) | |
321 | ||
05f7f5db DS |
322 | extern void zebra_if_init(void); |
323 | ||
d7c0a89a | 324 | extern struct interface *if_lookup_by_index_per_ns(struct zebra_ns *, uint32_t); |
d62a17ae | 325 | extern struct interface *if_lookup_by_name_per_ns(struct zebra_ns *, |
326 | const char *); | |
b53686c5 PG |
327 | extern struct interface *if_lookup_by_name_not_ns(ns_id_t ns_id, |
328 | const char *ifname); | |
d62a17ae | 329 | extern struct interface *if_link_per_ns(struct zebra_ns *, struct interface *); |
330 | extern const char *ifindex2ifname_per_ns(struct zebra_ns *, unsigned int); | |
331 | ||
332 | extern void if_unlink_per_ns(struct interface *); | |
333 | extern void if_nbr_ipv6ll_to_ipv4ll_neigh_update(struct interface *ifp, | |
334 | struct in6_addr *address, | |
335 | int add); | |
336 | extern void if_nbr_ipv6ll_to_ipv4ll_neigh_del_all(struct interface *ifp); | |
337 | extern void if_delete_update(struct interface *ifp); | |
338 | extern void if_add_update(struct interface *ifp); | |
339 | extern void if_up(struct interface *); | |
340 | extern void if_down(struct interface *); | |
341 | extern void if_refresh(struct interface *); | |
342 | extern void if_flags_update(struct interface *, uint64_t); | |
343 | extern int if_subnet_add(struct interface *, struct connected *); | |
344 | extern int if_subnet_delete(struct interface *, struct connected *); | |
345 | extern int ipv6_address_configured(struct interface *ifp); | |
346 | extern void if_handle_vrf_change(struct interface *ifp, vrf_id_t vrf_id); | |
347 | extern void zebra_if_update_link(struct interface *ifp, ifindex_t link_ifindex); | |
348 | ||
349 | extern void vrf_add_update(struct vrf *vrfp); | |
12f6fb97 | 350 | |
718e3744 | 351 | #ifdef HAVE_PROC_NET_DEV |
d62a17ae | 352 | extern void ifstat_update_proc(void); |
718e3744 | 353 | #endif /* HAVE_PROC_NET_DEV */ |
354 | #ifdef HAVE_NET_RT_IFLIST | |
d62a17ae | 355 | extern void ifstat_update_sysctl(void); |
718e3744 | 356 | |
357 | #endif /* HAVE_NET_RT_IFLIST */ | |
358 | #ifdef HAVE_PROC_NET_DEV | |
d62a17ae | 359 | extern int interface_list_proc(void); |
718e3744 | 360 | #endif /* HAVE_PROC_NET_DEV */ |
361 | #ifdef HAVE_PROC_NET_IF_INET6 | |
d62a17ae | 362 | extern int ifaddr_proc_ipv6(void); |
718e3744 | 363 | #endif /* HAVE_PROC_NET_IF_INET6 */ |
364 | ||
5b73a671 | 365 | #endif /* _ZEBRA_INTERFACE_H */ |