2 * SPDX-License-Identifier: BSD-4-Clause
4 * Copyright (c) 1997 Peter Wemm.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed for the FreeBSD Project
19 * 4. The name of the author may not be used to endorse or promote products
20 * derived from this software without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
39 #include <libifconfig.h>
41 #include <net/if_types.h>
43 #define __constructor __attribute__((constructor))
45 #ifdef WITHOUT_NETLINK
46 #define __netlink_used __unused
47 #define __netlink_unused
49 #define __netlink_used
50 #define __netlink_unused __unused
57 struct ifconfig_context {
58 struct ifconfig_args *args;
59 const struct afswtch *afp;
60 int io_s; /* fd to use for ioctl() */
61 struct snl_state *io_ss; /* NETLINK_ROUTE socket */
62 const char *ifname; /* Current interface name */
63 char _ifname_storage_ioctl[IFNAMSIZ];
65 typedef struct ifconfig_context if_ctx;
67 typedef void c_func(if_ctx *ctx, const char *cmd, int arg);
68 typedef void c_func2(if_ctx *ctx, const char *arg1, const char *arg2);
69 typedef void c_func3(if_ctx *ctx, const char *cmd, const char *arg);
74 #define NEXTARG 0xffffff /* has following arg */
75 #define NEXTARG2 0xfffffe /* has 2 following args */
76 #define OPTARG 0xfffffd /* has optional following arg */
77 #define SPARAM 0xfffffc /* parameter is string c_sparameter */
78 const char *c_sparameter;
87 void cmd_register(struct cmd *);
89 typedef void callback_func(if_ctx *, void *);
90 void callback_register(callback_func *, void *);
93 * Macros for initializing command handlers.
96 #define DEF_CMD(name, param, func) { \
98 .c_parameter = (param), \
99 .c_u = { .c_func = (func) }, \
103 #define DEF_CMD_ARG(name, func) { \
105 .c_parameter = NEXTARG, \
106 .c_u = { .c_func = (func) }, \
110 #define DEF_CMD_OPTARG(name, func) { \
112 .c_parameter = OPTARG, \
113 .c_u = { .c_func = (func) }, \
117 #define DEF_CMD_ARG2(name, func) { \
119 .c_parameter = NEXTARG2, \
120 .c_u = { .c_func2 = (func) }, \
124 #define DEF_CMD_SARG(name, sparam, func) { \
126 .c_parameter = SPARAM, \
127 .c_sparameter = (sparam), \
128 .c_u = { .c_func3 = (func) }, \
132 #define DEF_CLONE_CMD(name, param, func) { \
134 .c_parameter = (param), \
135 .c_u = { .c_func = (func) }, \
139 #define DEF_CLONE_CMD_ARG(name, func) { \
141 .c_parameter = NEXTARG, \
142 .c_u = { .c_func = (func) }, \
146 #define DEF_CLONE_CMD_ARG2(name, func) { \
148 .c_parameter = NEXTARG2, \
149 .c_u = { .c_func2 = (func) }, \
154 #define ioctl_ctx(ctx, _req, ...) ioctl((ctx)->io_s, _req, ## __VA_ARGS__)
155 int ioctl_ctx_ifr(if_ctx *ctx, unsigned long cmd, struct ifreq *ifr);
165 #ifdef WITHOUT_NETLINK
172 struct snl_parsed_addr;
173 struct snl_parsed_link;
174 typedef struct snl_parsed_link if_link_t;
175 typedef struct snl_parsed_addr if_addr_t;
177 typedef void af_setvhid_f(int vhid);
178 typedef void af_status_nl_f(if_ctx *ctx, if_link_t *link, if_addr_t *ifa);
179 typedef void af_status_f(if_ctx *ctx, const struct ifaddrs *);
180 typedef void af_other_status_f(if_ctx *ctx);
181 typedef void af_postproc_f(if_ctx *ctx, int newaddr, int ifflags);
182 typedef int af_exec_f(if_ctx *ctx, unsigned long action, void *data);
183 typedef void af_copyaddr_f(if_ctx *ctx, int to, int from);
184 typedef void af_status_tunnel_f(if_ctx *ctx);
185 typedef void af_settunnel_f(if_ctx *ctx, struct addrinfo *srcres, struct addrinfo *dstres);
188 const char *af_name; /* as given on cmd line, e.g. "inet" */
189 short af_af; /* AF_* */
191 * Status is handled one of two ways; if there is an
192 * address associated with the interface then the
193 * associated address family af_status method is invoked
194 * with the appropriate addressin info. Otherwise, if
195 * all possible info is to be displayed and af_other_status
196 * is defined then it is invoked after all address status
199 #ifndef WITHOUT_NETLINK
200 af_status_nl_f *af_status;
202 af_status_f *af_status;
204 af_other_status_f *af_other_status;
205 void (*af_getaddr)(const char *, int);
206 af_copyaddr_f *af_copyaddr; /* Copy address between <RID|*>ADDR */
207 /* parse prefix method (IPv6) */
208 void (*af_getprefix)(const char *, int);
209 af_postproc_f *af_postproc;
210 af_setvhid_f *af_setvhid; /* Set CARP vhid for an address */
211 af_exec_f *af_exec; /* Handler to interact with kernel */
212 u_long af_difaddr; /* set dst if address ioctl */
213 u_long af_aifaddr; /* set if address ioctl */
214 void *af_ridreq; /* */
215 void *af_addreq; /* */
216 struct afswtch *af_next;
218 /* XXX doesn't fit model */
219 af_status_tunnel_f *af_status_tunnel;
220 af_settunnel_f *af_settunnel;
222 void af_register(struct afswtch *);
223 int af_exec_ioctl(if_ctx *ctx, unsigned long action, void *data);
225 struct ifconfig_args {
226 bool all; /* Match everything */
227 bool downonly; /* Down-only items */
228 bool uponly; /* Up-only items */
229 bool namesonly; /* Output only names */
230 bool noload; /* Do not load relevant kernel modules */
231 bool supmedia; /* Supported media */
232 bool printkeys; /* Print security keys */
233 bool allfamilies; /* Print all families */
234 int verbose; /* verbosity level */
237 const char *ifname; /* Requested interface name */
238 const char *matchgroup; /* Group name to match */
239 const char *nogroup; /* Group name to exclude */
240 const struct afswtch *afp; /* AF we're operating on */
241 const char *jail_name; /* Jail name or jail id specified */
246 const char *opt_usage;
247 void (*cb)(const char *arg);
250 void opt_register(struct option *);
252 extern ifconfig_handle_t *lifh;
254 extern int exit_code;
255 extern char *f_inet, *f_inet6, *f_ether, *f_addr;
257 void clearifcap(if_ctx *ctx, const char *, int value);
258 void setifcap(if_ctx *ctx, const char *, int value);
259 void setifcapnv(if_ctx *ctx, const char *vname, const char *arg);
261 void Perror(const char *cmd);
262 void printb(const char *s, unsigned value, const char *bits);
264 void ifmaybeload(struct ifconfig_args *args, const char *name);
266 typedef int clone_match_func(const char *);
267 typedef void clone_callback_func(if_ctx *, struct ifreq *);
268 void clone_setdefcallback_prefix(const char *, clone_callback_func *);
269 void clone_setdefcallback_filter(clone_match_func *, clone_callback_func *);
271 void sfp_status(if_ctx *ctx);
274 bool match_ether(const struct sockaddr_dl *sdl);
275 bool match_if_flags(struct ifconfig_args *args, int if_flags);
276 int ifconfig_ioctl(if_ctx *ctx, int iscreate, const struct afswtch *uafp);
277 bool group_member(const char *ifname, const char *match, const char *nomatch);
278 void tunnel_status(if_ctx *ctx);
279 struct afswtch *af_getbyfamily(int af);
280 void af_other_status(if_ctx *ctx);
281 void print_ifstatus(if_ctx *ctx);
282 void print_metric(if_ctx *ctx);
283 ifType convert_iftype(ifType iftype);
285 /* Netlink-related functions */
286 void list_interfaces_nl(struct ifconfig_args *args);
287 int ifconfig_nl(if_ctx *ctx, int iscreate,
288 const struct afswtch *uafp);
289 uint32_t if_nametoindex_nl(struct snl_state *ss, const char *ifname);
292 * XXX expose this so modules that need to know of any pending
293 * operations on ifmedia can avoid cmd line ordering confusion.
295 struct ifmediareq *ifmedia_getstate(if_ctx *ctx);
297 void print_vhid(const struct ifaddrs *);
299 void ifcreate_ioctl(if_ctx *ctx, struct ifreq *ifr);
306 static inline struct sockaddr_in6 *
307 satosin6(struct sockaddr *sa)
309 return ((struct sockaddr_in6 *)(void *)sa);
312 static inline struct sockaddr_in *
313 satosin(struct sockaddr *sa)
315 return ((struct sockaddr_in *)(void *)sa);
318 static inline struct sockaddr_dl *
319 satosdl(struct sockaddr *sa)
321 return ((struct sockaddr_dl *)(void *)sa);
324 static inline const struct sockaddr_dl *
325 satosdl_c(const struct sockaddr *sa)
327 return ((const struct sockaddr_dl *)(const void *)sa);