/* $NetBSD: ifconfig.c,v 1.213 2008/08/01 22:29:13 dyoung Exp $ */ /*- * Copyright (c) 1997, 1998, 2000 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, * NASA Ames Research Center. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ /* * Copyright (c) 1983, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include #ifndef lint __COPYRIGHT("@(#) Copyright (c) 1983, 1993\ The Regents of the University of California. All rights reserved."); __RCSID("$NetBSD: ifconfig.c,v 1.213 2008/08/01 22:29:13 dyoung Exp $"); #endif /* not lint */ #include #include #include #include #include #include #include #include #include /* XXX */ #include /* XXX */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "extern.h" #include "media.h" #include "parse.h" #include "env.h" static bool bflag, dflag, hflag, sflag, uflag; bool lflag, vflag, zflag; static char gflags[10 + 26 * 2 + 1] = "AabCdhlsuvz"; bool gflagset[10 + 26 * 2]; static int carrier(prop_dictionary_t); static int clone_command(prop_dictionary_t, prop_dictionary_t); static void do_setifpreference(prop_dictionary_t); static int flag_index(int); static void init_afs(void); static int list_cloners(prop_dictionary_t, prop_dictionary_t); static int media_status_exec(prop_dictionary_t, prop_dictionary_t); static int no_cmds_exec(prop_dictionary_t, prop_dictionary_t); static int notrailers(prop_dictionary_t, prop_dictionary_t); static void printall(const char *, prop_dictionary_t); static int setifaddr(prop_dictionary_t, prop_dictionary_t); static int setifbroadaddr(prop_dictionary_t, prop_dictionary_t); static int setifcaps(prop_dictionary_t, prop_dictionary_t); static int setifdstormask(prop_dictionary_t, prop_dictionary_t); static int setifflags(prop_dictionary_t, prop_dictionary_t); static int setifmetric(prop_dictionary_t, prop_dictionary_t); static int setifmtu(prop_dictionary_t, prop_dictionary_t); static int setifnetmask(prop_dictionary_t, prop_dictionary_t); static int setifprefixlen(prop_dictionary_t, prop_dictionary_t); static void status(const struct sockaddr_dl *, prop_dictionary_t, prop_dictionary_t); static void usage(void); static const struct kwinst ifflagskw[] = { IFKW("arp", IFF_NOARP) , IFKW("debug", IFF_DEBUG) , IFKW("link0", IFF_LINK0) , IFKW("link1", IFF_LINK1) , IFKW("link2", IFF_LINK2) , {.k_word = "down", .k_type = KW_T_INT, .k_int = -IFF_UP} , {.k_word = "up", .k_type = KW_T_INT, .k_int = IFF_UP} }; static const struct kwinst ifcapskw[] = { IFKW("ip4csum-tx", IFCAP_CSUM_IPv4_Tx) , IFKW("ip4csum-rx", IFCAP_CSUM_IPv4_Rx) , IFKW("tcp4csum-tx", IFCAP_CSUM_TCPv4_Tx) , IFKW("tcp4csum-rx", IFCAP_CSUM_TCPv4_Rx) , IFKW("udp4csum-tx", IFCAP_CSUM_UDPv4_Tx) , IFKW("udp4csum-rx", IFCAP_CSUM_UDPv4_Rx) , IFKW("tcp6csum-tx", IFCAP_CSUM_TCPv6_Tx) , IFKW("tcp6csum-rx", IFCAP_CSUM_TCPv6_Rx) , IFKW("udp6csum-tx", IFCAP_CSUM_UDPv6_Tx) , IFKW("udp6csum-rx", IFCAP_CSUM_UDPv6_Rx) , IFKW("ip4csum", IFCAP_CSUM_IPv4_Tx|IFCAP_CSUM_IPv4_Rx) , IFKW("tcp4csum", IFCAP_CSUM_TCPv4_Tx|IFCAP_CSUM_TCPv4_Rx) , IFKW("udp4csum", IFCAP_CSUM_UDPv4_Tx|IFCAP_CSUM_UDPv4_Rx) , IFKW("tcp6csum", IFCAP_CSUM_TCPv6_Tx|IFCAP_CSUM_TCPv6_Rx) , IFKW("udp6csum", IFCAP_CSUM_UDPv6_Tx|IFCAP_CSUM_UDPv6_Rx) , IFKW("tso4", IFCAP_TSOv4) , IFKW("tso6", IFCAP_TSOv6) }; extern struct pbranch command_root; extern struct pbranch opt_command; extern struct pbranch opt_family, opt_silent_family; extern struct pkw cloning, silent_family, family, ifcaps, ifflags, misc; struct pinteger parse_metric = PINTEGER_INITIALIZER(&parse_metric, "metric", 10, setifmetric, "metric", &command_root.pb_parser); struct pinteger parse_mtu = PINTEGER_INITIALIZER(&parse_mtu, "mtu", 10, setifmtu, "mtu", &command_root.pb_parser); struct pinteger parse_prefixlen = PINTEGER_INITIALIZER(&parse_prefixlen, "prefixlen", 10, setifprefixlen, "prefixlen", &command_root.pb_parser); struct pinteger parse_preference = PINTEGER_INITIALIZER1(&parse_preference, "preference", INT16_MIN, INT16_MAX, 10, NULL, "preference", &command_root.pb_parser); struct paddr parse_netmask = PADDR_INITIALIZER(&parse_netmask, "netmask", setifnetmask, "dstormask", NULL, NULL, NULL, &command_root.pb_parser); struct paddr parse_broadcast = PADDR_INITIALIZER(&parse_broadcast, "broadcast address", setifbroadaddr, "broadcast", NULL, NULL, NULL, &command_root.pb_parser); static const struct kwinst misckw[] = { {.k_word = "alias", .k_key = "alias", .k_deact = "alias", .k_type = KW_T_BOOL, .k_neg = true, .k_bool = true, .k_negbool = false, .k_nextparser = &command_root.pb_parser} , {.k_word = "broadcast", .k_nextparser = &parse_broadcast.pa_parser} , {.k_word = "delete", .k_key = "alias", .k_deact = "alias", .k_type = KW_T_BOOL, .k_bool = false, .k_nextparser = &command_root.pb_parser} , {.k_word = "metric", .k_nextparser = &parse_metric.pi_parser} , {.k_word = "mtu", .k_nextparser = &parse_mtu.pi_parser} , {.k_word = "netmask", .k_nextparser = &parse_netmask.pa_parser} , {.k_word = "preference", .k_act = "address", .k_nextparser = &parse_preference.pi_parser} , {.k_word = "prefixlen", .k_nextparser = &parse_prefixlen.pi_parser} , {.k_word = "trailers", .k_neg = true, .k_exec = notrailers, .k_nextparser = &command_root.pb_parser} }; /* key: clonecmd */ static const struct kwinst clonekw[] = { {.k_word = "create", .k_type = KW_T_INT, .k_int = SIOCIFCREATE, .k_nextparser = &opt_silent_family.pb_parser}, {.k_word = "destroy", .k_type = KW_T_INT, .k_int = SIOCIFDESTROY} }; static struct kwinst familykw[24]; struct pterm cloneterm = PTERM_INITIALIZER(&cloneterm, "list cloners", list_cloners, "none"); struct pterm no_cmds = PTERM_INITIALIZER(&no_cmds, "no commands", no_cmds_exec, "none"); struct pkw family_only = PKW_INITIALIZER(&family_only, "family-only", NULL, "af", familykw, __arraycount(familykw), &no_cmds.pt_parser); struct paddr address = PADDR_INITIALIZER(&address, "local address (address 1)", setifaddr, "address", "netmask", NULL, "address", &command_root.pb_parser); struct paddr dstormask = PADDR_INITIALIZER(&dstormask, "destination/netmask (address 2)", setifdstormask, "dstormask", NULL, "address", "dstormask", &command_root.pb_parser); struct paddr broadcast = PADDR_INITIALIZER(&broadcast, "broadcast address (address 3)", setifbroadaddr, "broadcast", NULL, "dstormask", "broadcast", &command_root.pb_parser); static SIMPLEQ_HEAD(, afswtch) aflist = SIMPLEQ_HEAD_INITIALIZER(aflist); static SIMPLEQ_HEAD(, usage_func) usage_funcs = SIMPLEQ_HEAD_INITIALIZER(usage_funcs); static SIMPLEQ_HEAD(, status_func) status_funcs = SIMPLEQ_HEAD_INITIALIZER(status_funcs); static SIMPLEQ_HEAD(, statistics_func) statistics_funcs = SIMPLEQ_HEAD_INITIALIZER(statistics_funcs); static SIMPLEQ_HEAD(, cmdloop_branch) cmdloop_branches = SIMPLEQ_HEAD_INITIALIZER(cmdloop_branches); struct branch opt_clone_brs[] = { {.b_nextparser = &cloning.pk_parser} , {.b_nextparser = &opt_family.pb_parser} }, opt_silent_family_brs[] = { {.b_nextparser = &silent_family.pk_parser} , {.b_nextparser = &command_root.pb_parser} }, opt_family_brs[] = { {.b_nextparser = &family.pk_parser} , {.b_nextparser = &opt_command.pb_parser} }, command_root_brs[] = { {.b_nextparser = &ifflags.pk_parser} , {.b_nextparser = &ifcaps.pk_parser} , {.b_nextparser = &kwmedia.pk_parser} , {.b_nextparser = &misc.pk_parser} , {.b_nextparser = &address.pa_parser} , {.b_nextparser = &dstormask.pa_parser} , {.b_nextparser = &broadcast.pa_parser} , {.b_nextparser = NULL} }, opt_command_brs[] = { {.b_nextparser = &no_cmds.pt_parser} , {.b_nextparser = &command_root.pb_parser} }; struct branch opt_family_only_brs[] = { {.b_nextparser = &no_cmds.pt_parser} , {.b_nextparser = &family_only.pk_parser} }; struct pbranch opt_family_only = PBRANCH_INITIALIZER(&opt_family_only, "opt-family-only", opt_family_only_brs, __arraycount(opt_family_only_brs), true); struct pbranch opt_command = PBRANCH_INITIALIZER(&opt_command, "optional command", opt_command_brs, __arraycount(opt_command_brs), true); struct pbranch command_root = PBRANCH_INITIALIZER(&command_root, "command-root", command_root_brs, __arraycount(command_root_brs), true); struct piface iface_opt_family_only = PIFACE_INITIALIZER(&iface_opt_family_only, "iface-opt-family-only", NULL, "if", &opt_family_only.pb_parser); struct pkw family = PKW_INITIALIZER(&family, "family", NULL, "af", familykw, __arraycount(familykw), &opt_command.pb_parser); struct pkw silent_family = PKW_INITIALIZER(&silent_family, "silent family", NULL, "af", familykw, __arraycount(familykw), &command_root.pb_parser); struct pkw *family_users[] = {&family_only, &family, &silent_family}; struct pkw ifcaps = PKW_INITIALIZER(&ifcaps, "ifcaps", setifcaps, "ifcap", ifcapskw, __arraycount(ifcapskw), &command_root.pb_parser); struct pkw ifflags = PKW_INITIALIZER(&ifflags, "ifflags", setifflags, "ifflag", ifflagskw, __arraycount(ifflagskw), &command_root.pb_parser); struct pkw cloning = PKW_INITIALIZER(&cloning, "cloning", clone_command, "clonecmd", clonekw, __arraycount(clonekw), NULL); struct pkw misc = PKW_INITIALIZER(&misc, "misc", NULL, NULL, misckw, __arraycount(misckw), NULL); struct pbranch opt_clone = PBRANCH_INITIALIZER(&opt_clone, "opt-clone", opt_clone_brs, __arraycount(opt_clone_brs), true); struct pbranch opt_silent_family = PBRANCH_INITIALIZER(&opt_silent_family, "optional silent family", opt_silent_family_brs, __arraycount(opt_silent_family_brs), true); struct pbranch opt_family = PBRANCH_INITIALIZER(&opt_family, "opt-family", opt_family_brs, __arraycount(opt_family_brs), true); struct piface iface_start = PIFACE_INITIALIZER(&iface_start, "iface-opt-family", NULL, "if", &opt_clone.pb_parser); struct piface iface_only = PIFACE_INITIALIZER(&iface_only, "iface", media_status_exec, "if", NULL); static bool flag_is_registered(const char *flags, int flag) { return flags != NULL && strchr(flags, flag) != NULL; } static int check_flag(const char *flags, int flag) { if (flag_is_registered(flags, flag)) { errno = EEXIST; return -1; } if (flag >= '0' && flag <= '9') return 0; if (flag >= 'a' && flag <= 'z') return 0; if (flag >= 'A' && flag <= 'Z') return 0; errno = EINVAL; return -1; } void cmdloop_branch_init(cmdloop_branch_t *b, struct parser *p) { b->b_parser = p; } void statistics_func_init(statistics_func_t *f, statistics_cb_t func) { f->f_func = func; } void status_func_init(status_func_t *f, status_cb_t func) { f->f_func = func; } void usage_func_init(usage_func_t *f, usage_cb_t func) { f->f_func = func; } int register_cmdloop_branch(cmdloop_branch_t *b) { SIMPLEQ_INSERT_TAIL(&cmdloop_branches, b, b_next); return 0; } int register_statistics(statistics_func_t *f) { SIMPLEQ_INSERT_TAIL(&statistics_funcs, f, f_next); return 0; } int register_status(status_func_t *f) { SIMPLEQ_INSERT_TAIL(&status_funcs, f, f_next); return 0; } int register_usage(usage_func_t *f) { SIMPLEQ_INSERT_TAIL(&usage_funcs, f, f_next); return 0; } int register_family(struct afswtch *af) { SIMPLEQ_INSERT_TAIL(&aflist, af, af_next); return 0; } int register_flag(int flag) { if (check_flag(gflags, flag) == -1) return -1; if (strlen(gflags) + 1 >= sizeof(gflags)) { errno = ENOMEM; return -1; } gflags[strlen(gflags)] = flag; return 0; } static int flag_index(int flag) { if (flag >= '0' && flag <= '9') return flag - '0'; if (flag >= 'a' && flag <= 'z') return 10 + flag - 'a'; if (flag >= 'A' && flag <= 'Z') return 10 + 26 + flag - 'a'; errno = EINVAL; return -1; } static bool set_flag(int flag) { int idx; if ((idx = flag_index(flag)) == -1) return false; return gflagset[idx] = true; } bool get_flag(int flag) { int idx; if ((idx = flag_index(flag)) == -1) return false; return gflagset[idx]; } static struct parser * init_parser(void) { cmdloop_branch_t *b; if (parser_init(&iface_opt_family_only.pif_parser) == -1) err(EXIT_FAILURE, "parser_init(iface_opt_family_only)"); if (parser_init(&iface_only.pif_parser) == -1) err(EXIT_FAILURE, "parser_init(iface_only)"); if (parser_init(&iface_start.pif_parser) == -1) err(EXIT_FAILURE, "parser_init(iface_start)"); SIMPLEQ_FOREACH(b, &cmdloop_branches, b_next) pbranch_addbranch(&command_root, b->b_parser); return &iface_start.pif_parser; } static int no_cmds_exec(prop_dictionary_t env, prop_dictionary_t oenv) { const char *ifname; unsigned short ignore; /* ifname == NULL is ok. It indicates 'ifconfig -a'. */ if ((ifname = getifname(env)) == NULL) ; else if (getifflags(env, oenv, &ignore) == -1) err(EXIT_FAILURE, "SIOCGIFFLAGS %s", ifname); printall(ifname, env); exit(EXIT_SUCCESS); } static int media_status_exec(prop_dictionary_t env, prop_dictionary_t oenv) { const char *ifname; unsigned short ignore; /* ifname == NULL is ok. It indicates 'ifconfig -a'. */ if ((ifname = getifname(env)) == NULL) ; else if (getifflags(env, oenv, &ignore) == -1) err(EXIT_FAILURE, "SIOCGIFFLAGS %s", ifname); exit(carrier(env)); } static void do_setifcaps(prop_dictionary_t env) { struct ifcapreq ifcr; prop_data_t d; d = (prop_data_t )prop_dictionary_get(env, "ifcaps"); if (d == NULL) return; assert(sizeof(ifcr) == prop_data_size(d)); memcpy(&ifcr, prop_data_data_nocopy(d), sizeof(ifcr)); if (direct_ioctl(env, SIOCSIFCAP, &ifcr) == -1) err(EXIT_FAILURE, "SIOCSIFCAP"); } int main(int argc, char **argv) { const struct afswtch *afp; int af, s; bool aflag = false, Cflag = false; struct match match[32]; size_t nmatch; struct parser *start; int ch, narg = 0, rc; prop_dictionary_t env, oenv; const char *ifname; memset(match, 0, sizeof(match)); init_afs(); start = init_parser(); /* Parse command-line options */ aflag = vflag = zflag = false; while ((ch = getopt(argc, argv, gflags)) != -1) { switch (ch) { case 'A': warnx("-A is deprecated"); break; case 'a': aflag = true; break; case 'b': bflag = true; break; case 'C': Cflag = true; break; case 'd': dflag = true; break; case 'h': hflag = true; break; case 'l': lflag = true; break; case 's': sflag = true; break; case 'u': uflag = true; break; case 'v': vflag = true; break; case 'z': zflag = true; break; default: if (!set_flag(ch)) usage(); break; } switch (ch) { case 'a': start = &opt_family_only.pb_parser; break; case 'L': case 'm': case 'v': case 'z': if (start != &opt_family_only.pb_parser) start = &iface_opt_family_only.pif_parser; break; case 'C': start = &cloneterm.pt_parser; break; case 'l': start = &no_cmds.pt_parser; break; case 's': if (start != &no_cmds.pt_parser && start != &opt_family_only.pb_parser) start = &iface_only.pif_parser; break; default: break; } } argc -= optind; argv += optind; /* * -l means "list all interfaces", and is mutally exclusive with * all other flags/commands. * * -C means "list all names of cloners", and it mutually exclusive * with all other flags/commands. * * -a means "print status of all interfaces". */ if ((lflag || Cflag) && (aflag || get_flag('m') || vflag || zflag)) usage(); if ((lflag || Cflag) && get_flag('L')) usage(); if (lflag && Cflag) usage(); nmatch = __arraycount(match); rc = parse(argc, argv, start, match, &nmatch, &narg); if (rc != 0) usage(); if ((oenv = prop_dictionary_create()) == NULL) err(EXIT_FAILURE, "%s: prop_dictionary_create", __func__); if (matches_exec(match, oenv, nmatch) == -1) err(EXIT_FAILURE, "exec_matches"); argc -= narg; argv += narg; env = (nmatch > 0) ? match[(int)nmatch - 1].m_env : NULL; if (env == NULL) env = oenv; else env = prop_dictionary_augment(env, oenv); /* Process any media commands that may have been issued. */ process_media_commands(env); if ((af = getaf(env)) == -1) af = AF_INET; if ((s = getsock(af)) == -1) err(EXIT_FAILURE, "%s: getsock", __func__); if ((ifname = getifname(env)) == NULL) err(EXIT_FAILURE, "%s: getifname", __func__); if ((afp = lookup_af_bynum(af)) == NULL) errx(EXIT_FAILURE, "%s: lookup_af_bynum", __func__); assert(afp->af_addr_commit != NULL); (*afp->af_addr_commit)(env, oenv); do_setifpreference(env); do_setifcaps(env); exit(EXIT_SUCCESS); } static void init_afs(void) { int i; const struct afswtch *afp; struct kwinst kw = {.k_type = KW_T_INT}; SIMPLEQ_FOREACH(afp, &aflist, af_next) { kw.k_word = afp->af_name; kw.k_int = afp->af_af; for (i = 0; i < __arraycount(familykw); i++) { if (familykw[i].k_word == NULL) { familykw[i] = kw; break; } } } } const struct afswtch * lookup_af_bynum(int afnum) { const struct afswtch *afp; SIMPLEQ_FOREACH(afp, &aflist, af_next) { if (afp->af_af == afnum) break; } return afp; } void printall(const char *ifname, prop_dictionary_t env0) { struct ifaddrs *ifap, *ifa; struct ifreq ifr; const struct sockaddr_dl *sdl = NULL; prop_dictionary_t env, oenv; int idx; char *p; if (env0 == NULL) env = prop_dictionary_create(); else env = prop_dictionary_copy_mutable(env0); oenv = prop_dictionary_create(); if (env == NULL || oenv == NULL) errx(EXIT_FAILURE, "%s: prop_dictionary_copy/create", __func__); if (getifaddrs(&ifap) != 0) err(EXIT_FAILURE, "getifaddrs"); p = NULL; idx = 0; for (ifa = ifap; ifa; ifa = ifa->ifa_next) { memset(&ifr, 0, sizeof(ifr)); estrlcpy(ifr.ifr_name, ifa->ifa_name, sizeof(ifr.ifr_name)); if (sizeof(ifr.ifr_addr) >= ifa->ifa_addr->sa_len) { memcpy(&ifr.ifr_addr, ifa->ifa_addr, ifa->ifa_addr->sa_len); } if (ifname != NULL && strcmp(ifname, ifa->ifa_name) != 0) continue; if (ifa->ifa_addr->sa_family == AF_LINK) sdl = (const struct sockaddr_dl *) ifa->ifa_addr; if (p && strcmp(p, ifa->ifa_name) == 0) continue; if (!prop_dictionary_set_cstring(env, "if", ifa->ifa_name)) continue; p = ifa->ifa_name; if (bflag && (ifa->ifa_flags & IFF_BROADCAST) == 0) continue; if (dflag && (ifa->ifa_flags & IFF_UP) != 0) continue; if (uflag && (ifa->ifa_flags & IFF_UP) == 0) continue; if (sflag && carrier(env)) continue; idx++; /* * Are we just listing the interfaces? */ if (lflag) { if (idx > 1) printf(" "); fputs(ifa->ifa_name, stdout); continue; } status(sdl, env, oenv); sdl = NULL; } if (lflag) printf("\n"); prop_object_release((prop_object_t)env); prop_object_release((prop_object_t)oenv); freeifaddrs(ifap); } static int list_cloners(prop_dictionary_t env, prop_dictionary_t oenv) { struct if_clonereq ifcr; char *cp, *buf; int idx, s; memset(&ifcr, 0, sizeof(ifcr)); s = getsock(AF_INET); if (ioctl(s, SIOCIFGCLONERS, &ifcr) == -1) err(EXIT_FAILURE, "SIOCIFGCLONERS for count"); buf = malloc(ifcr.ifcr_total * IFNAMSIZ); if (buf == NULL) err(EXIT_FAILURE, "unable to allocate cloner name buffer"); ifcr.ifcr_count = ifcr.ifcr_total; ifcr.ifcr_buffer = buf; if (ioctl(s, SIOCIFGCLONERS, &ifcr) == -1) err(EXIT_FAILURE, "SIOCIFGCLONERS for names"); /* * In case some disappeared in the mean time, clamp it down. */ if (ifcr.ifcr_count > ifcr.ifcr_total) ifcr.ifcr_count = ifcr.ifcr_total; for (cp = buf, idx = 0; idx < ifcr.ifcr_count; idx++, cp += IFNAMSIZ) { if (idx > 0) printf(" "); printf("%s", cp); } printf("\n"); free(buf); exit(EXIT_SUCCESS); } static int clone_command(prop_dictionary_t env, prop_dictionary_t oenv) { int64_t cmd; if (!prop_dictionary_get_int64(env, "clonecmd", &cmd)) { errno = ENOENT; return -1; } if (indirect_ioctl(env, (unsigned long)cmd, NULL) == -1) { warn("%s", __func__); return -1; } return 0; } /*ARGSUSED*/ static int setifaddr(prop_dictionary_t env, prop_dictionary_t oenv) { const struct paddr_prefix *pfx0; struct paddr_prefix *pfx; prop_data_t d; int af; if ((af = getaf(env)) == -1) af = AF_INET; d = (prop_data_t)prop_dictionary_get(env, "address"); assert(d != NULL); pfx0 = prop_data_data_nocopy(d); if (pfx0->pfx_len >= 0) { pfx = prefixlen_to_mask(af, pfx0->pfx_len); if (pfx == NULL) err(EXIT_FAILURE, "prefixlen_to_mask"); free(pfx); } return 0; } static int setifnetmask(prop_dictionary_t env, prop_dictionary_t oenv) { const struct paddr_prefix *pfx; prop_data_t d; d = (prop_data_t)prop_dictionary_get(env, "dstormask"); assert(d != NULL); pfx = prop_data_data_nocopy(d); if (!prop_dictionary_set(oenv, "netmask", (prop_object_t)d)) return -1; return 0; } static int setifbroadaddr(prop_dictionary_t env, prop_dictionary_t oenv) { const struct paddr_prefix *pfx; prop_data_t d; unsigned short flags; if (getifflags(env, oenv, &flags) == -1) err(EXIT_FAILURE, "%s: getifflags", __func__); if ((flags & IFF_BROADCAST) == 0) errx(EXIT_FAILURE, "not a broadcast interface"); d = (prop_data_t)prop_dictionary_get(env, "broadcast"); assert(d != NULL); pfx = prop_data_data_nocopy(d); if (!prop_dictionary_set(oenv, "broadcast", (prop_object_t)d)) return -1; return 0; } /*ARGSUSED*/ static int notrailers(prop_dictionary_t env, prop_dictionary_t oenv) { puts("Note: trailers are no longer sent, but always received"); return 0; } /*ARGSUSED*/ static int setifdstormask(prop_dictionary_t env, prop_dictionary_t oenv) { const char *key; const struct paddr_prefix *pfx; prop_data_t d; unsigned short flags; if (getifflags(env, oenv, &flags) == -1) err(EXIT_FAILURE, "%s: getifflags", __func__); d = (prop_data_t)prop_dictionary_get(env, "dstormask"); assert(d != NULL); pfx = prop_data_data_nocopy(d); if ((flags & IFF_BROADCAST) == 0) { key = "dst"; } else { key = "netmask"; } if (!prop_dictionary_set(oenv, key, (prop_object_t)d)) return -1; return 0; } static int setifflags(prop_dictionary_t env, prop_dictionary_t oenv) { struct ifreq ifr; int64_t ifflag; bool rc; rc = prop_dictionary_get_int64(env, "ifflag", &ifflag); assert(rc); if (direct_ioctl(env, SIOCGIFFLAGS, &ifr) == -1) return -1; if (ifflag < 0) { ifflag = -ifflag; ifr.ifr_flags &= ~ifflag; } else ifr.ifr_flags |= ifflag; if (direct_ioctl(env, SIOCSIFFLAGS, &ifr) == -1) return -1; return 0; } static int getifcaps(prop_dictionary_t env, prop_dictionary_t oenv, struct ifcapreq *oifcr) { bool rc; struct ifcapreq ifcr; const struct ifcapreq *tmpifcr; prop_data_t capdata; capdata = (prop_data_t)prop_dictionary_get(env, "ifcaps"); if (capdata != NULL) { tmpifcr = prop_data_data_nocopy(capdata); *oifcr = *tmpifcr; return 0; } (void)direct_ioctl(env, SIOCGIFCAP, &ifcr); *oifcr = ifcr; capdata = prop_data_create_data(&ifcr, sizeof(ifcr)); rc = prop_dictionary_set(oenv, "ifcaps", capdata); prop_object_release((prop_object_t)capdata); return rc ? 0 : -1; } static int setifcaps(prop_dictionary_t env, prop_dictionary_t oenv) { int64_t ifcap; int s; bool rc; prop_data_t capdata; struct ifcapreq ifcr; s = getsock(AF_INET); rc = prop_dictionary_get_int64(env, "ifcap", &ifcap); assert(rc); if (getifcaps(env, oenv, &ifcr) == -1) return -1; if (ifcap < 0) { ifcap = -ifcap; ifcr.ifcr_capenable &= ~ifcap; } else ifcr.ifcr_capenable |= ifcap; if ((capdata = prop_data_create_data(&ifcr, sizeof(ifcr))) == NULL) return -1; rc = prop_dictionary_set(oenv, "ifcaps", capdata); prop_object_release((prop_object_t)capdata); return rc ? 0 : -1; } static int setifmetric(prop_dictionary_t env, prop_dictionary_t oenv) { struct ifreq ifr; bool rc; int64_t metric; rc = prop_dictionary_get_int64(env, "metric", &metric); assert(rc); ifr.ifr_metric = metric; if (direct_ioctl(env, SIOCSIFMETRIC, &ifr) == -1) warn("SIOCSIFMETRIC"); return 0; } static void do_setifpreference(prop_dictionary_t env) { struct if_addrprefreq ifap; prop_data_t d; const struct paddr_prefix *pfx; memset(&ifap, 0, sizeof(ifap)); if (!prop_dictionary_get_int16(env, "preference", &ifap.ifap_preference)) return; d = (prop_data_t)prop_dictionary_get(env, "address"); assert(d != NULL); pfx = prop_data_data_nocopy(d); memcpy(&ifap.ifap_addr, &pfx->pfx_addr, MIN(sizeof(ifap.ifap_addr), pfx->pfx_addr.sa_len)); if (direct_ioctl(env, SIOCSIFADDRPREF, &ifap) == -1) warn("SIOCSIFADDRPREF"); } static int setifmtu(prop_dictionary_t env, prop_dictionary_t oenv) { int64_t mtu; bool rc; struct ifreq ifr; rc = prop_dictionary_get_int64(env, "mtu", &mtu); assert(rc); ifr.ifr_mtu = mtu; if (direct_ioctl(env, SIOCSIFMTU, &ifr) == -1) warn("SIOCSIFMTU"); return 0; } static int carrier(prop_dictionary_t env) { struct ifmediareq ifmr; memset(&ifmr, 0, sizeof(ifmr)); if (direct_ioctl(env, SIOCGIFMEDIA, &ifmr) == -1) { /* * Interface doesn't support SIOC{G,S}IFMEDIA; * assume ok. */ return EXIT_SUCCESS; } if ((ifmr.ifm_status & IFM_AVALID) == 0) { /* * Interface doesn't report media-valid status. * assume ok. */ return EXIT_SUCCESS; } /* otherwise, return ok for active, not-ok if not active. */ if (ifmr.ifm_status & IFM_ACTIVE) return EXIT_SUCCESS; else return EXIT_FAILURE; } static void print_plural(const char *prefix, uint64_t n, const char *unit) { printf("%s%" PRIu64 " %s%s", prefix, n, unit, (n == 1) ? "" : "s"); } static void print_human_bytes(bool humanize, uint64_t n) { char buf[5]; if (humanize) { (void)humanize_number(buf, sizeof(buf), (int64_t)n, "", HN_AUTOSCALE, HN_NOSPACE | HN_DECIMAL); printf(", %s byte%s", buf, (atof(buf) == 1.0) ? "" : "s"); } else print_plural(", ", n, "byte"); } /* * Print the status of the interface. If an address family was * specified, show it and it only; otherwise, show them all. */ void status(const struct sockaddr_dl *sdl, prop_dictionary_t env, prop_dictionary_t oenv) { const struct if_data *ifi; status_func_t *status_f; statistics_func_t *statistics_f; struct ifdatareq ifdr; struct ifreq ifr; char hbuf[NI_MAXHOST]; char fbuf[BUFSIZ]; int af, s; const char *ifname; struct ifcapreq ifcr; unsigned short flags; const struct afswtch *afp; if ((af = getaf(env)) == -1) { afp = NULL; af = AF_UNSPEC; } else afp = lookup_af_bynum(af); /* get out early if the family is unsupported by the kernel */ if ((s = getsock(af)) == -1) err(EXIT_FAILURE, "%s: getsock", __func__); if ((ifname = getifinfo(env, oenv, &flags)) == NULL) err(EXIT_FAILURE, "%s: getifinfo", __func__); (void)snprintb(fbuf, sizeof(fbuf), IFFBITS, flags); printf("%s: flags=%s", ifname, &fbuf[2]); estrlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); if (ioctl(s, SIOCGIFMETRIC, &ifr) == -1) warn("SIOCGIFMETRIC %s", ifr.ifr_name); else if (ifr.ifr_metric != 0) printf(" metric %d", ifr.ifr_metric); estrlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); if (ioctl(s, SIOCGIFMTU, &ifr) != -1 && ifr.ifr_mtu != 0) printf(" mtu %d", ifr.ifr_mtu); printf("\n"); if (getifcaps(env, oenv, &ifcr) == -1) err(EXIT_FAILURE, "%s: getifcaps", __func__); if (ifcr.ifcr_capabilities != 0) { (void)snprintb(fbuf, sizeof(fbuf), IFCAPBITS, ifcr.ifcr_capabilities); printf("\tcapabilities=%s\n", &fbuf[2]); (void)snprintb(fbuf, sizeof(fbuf), IFCAPBITS, ifcr.ifcr_capenable); printf("\tenabled=%s\n", &fbuf[2]); } SIMPLEQ_FOREACH(status_f, &status_funcs, f_next) (*status_f->f_func)(env, oenv); if (sdl != NULL && getnameinfo((const struct sockaddr *)sdl, sdl->sdl_len, hbuf, sizeof(hbuf), NULL, 0, NI_NUMERICHOST) == 0 && hbuf[0] != '\0') printf("\taddress: %s\n", hbuf); media_status(env, oenv); if (!vflag && !zflag) goto proto_status; estrlcpy(ifdr.ifdr_name, ifname, sizeof(ifdr.ifdr_name)); if (ioctl(s, zflag ? SIOCZIFDATA:SIOCGIFDATA, &ifdr) == -1) err(EXIT_FAILURE, zflag ? "SIOCZIFDATA" : "SIOCGIFDATA"); ifi = &ifdr.ifdr_data; print_plural("\tinput: ", ifi->ifi_ipackets, "packet"); print_human_bytes(hflag, ifi->ifi_ibytes); if (ifi->ifi_imcasts) print_plural(", ", ifi->ifi_imcasts, "multicast"); if (ifi->ifi_ierrors) print_plural(", ", ifi->ifi_ierrors, "error"); if (ifi->ifi_iqdrops) print_plural(", ", ifi->ifi_iqdrops, "queue drop"); if (ifi->ifi_noproto) printf(", %" PRIu64 " unknown protocol", ifi->ifi_noproto); print_plural("\n\toutput: ", ifi->ifi_opackets, "packet"); print_human_bytes(hflag, ifi->ifi_obytes); if (ifi->ifi_omcasts) print_plural(", ", ifi->ifi_omcasts, "multicast"); if (ifi->ifi_oerrors) print_plural(", ", ifi->ifi_oerrors, "error"); if (ifi->ifi_collisions) print_plural(", ", ifi->ifi_collisions, "collision"); printf("\n"); SIMPLEQ_FOREACH(statistics_f, &statistics_funcs, f_next) (*statistics_f->f_func)(env); proto_status: if (afp != NULL) (*afp->af_status)(env, oenv, true); else SIMPLEQ_FOREACH(afp, &aflist, af_next) (*afp->af_status)(env, oenv, false); } static int setifprefixlen(prop_dictionary_t env, prop_dictionary_t oenv) { bool rc; int64_t plen; int af; struct paddr_prefix *pfx; prop_data_t d; if ((af = getaf(env)) == -1) af = AF_INET; rc = prop_dictionary_get_int64(env, "prefixlen", &plen); assert(rc); pfx = prefixlen_to_mask(af, plen); if (pfx == NULL) err(EXIT_FAILURE, "prefixlen_to_mask"); d = prop_data_create_data(pfx, paddr_prefix_size(pfx)); if (d == NULL) err(EXIT_FAILURE, "%s: prop_data_create_data", __func__); if (!prop_dictionary_set(oenv, "netmask", (prop_object_t)d)) err(EXIT_FAILURE, "%s: prop_dictionary_set", __func__); free(pfx); return 0; } static void usage(void) { const char *progname = getprogname(); usage_func_t *usage_f; prop_dictionary_t env; if ((env = prop_dictionary_create()) == NULL) err(EXIT_FAILURE, "%s: prop_dictionary_create", __func__); fprintf(stderr, "usage: %s [-h] %s[-v] [-z] %sinterface\n" "\t[ af [ address [ dest_addr ] ] [ netmask mask ] [ prefixlen n ]\n" "\t\t[ alias | -alias ] ]\n" "\t[ up ] [ down ] [ metric n ] [ mtu n ]\n", progname, flag_is_registered(gflags, 'm') ? "[-m] " : "", flag_is_registered(gflags, 'L') ? "[-L] " : ""); SIMPLEQ_FOREACH(usage_f, &usage_funcs, f_next) (*usage_f->f_func)(env); fprintf(stderr, "\t[ arp | -arp ]\n" "\t[ preference n ]\n" "\t[ link0 | -link0 ] [ link1 | -link1 ] [ link2 | -link2 ]\n" " %s -a [-b] [-d] [-h] %s[-u] [-v] [-z] [ af ]\n" " %s -l [-b] [-d] [-s] [-u]\n" " %s -C\n" " %s interface create\n" " %s interface destroy\n", progname, flag_is_registered(gflags, 'm') ? "[-m] " : "", progname, progname, progname, progname); prop_object_release((prop_object_t)env); exit(EXIT_FAILURE); }