/* * Copyright (c) 2000, 2001 Boris Popov * 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. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Boris Popov. * 4. Neither the name of the author nor the names of any co-contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. * * $Id: nb.c,v 1.1.1.2 2001/07/06 22:38:42 conrad Exp $ */ /* * Copyright 2010 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include void nb_ctx_setnbflags(struct nb_ctx *, int ns_ena, int bc_ena); int nb_ctx_setwins(struct nb_ctx *, const char *, const char *); /* * API for seting NetBIOS name lookup flags: * NetBIOS name lookup enable, * NetBIOS broadcast enable. */ int smb_ctx_setnbflags(struct smb_ctx *ctx, int ns_ena, int bc_ena) { struct nb_ctx *nb = ctx->ct_nb; if (nb == NULL) return (EINVAL); nb_ctx_setnbflags(nb, ns_ena, bc_ena); return (0); } /* * API for library consumer to set wins1, wins2 */ int smb_ctx_setwins(struct smb_ctx *ctx, const char *wins1, const char *wins2) { struct nb_ctx *nb = ctx->ct_nb; if (nb == NULL) return (EINVAL); return (nb_ctx_setwins(nb, wins1, wins2)); } /* * API for library consumer to set NB scope. */ int smb_ctx_setscope(struct smb_ctx *ctx, const char *scope) { struct nb_ctx *nb = ctx->ct_nb; if (nb == NULL) return (EINVAL); return (nb_ctx_setscope(nb, scope)); } int nb_ctx_create(struct nb_ctx **ctxpp) { struct nb_ctx *ctx; ctx = malloc(sizeof (struct nb_ctx)); if (ctx == NULL) return (ENOMEM); bzero(ctx, sizeof (struct nb_ctx)); *ctxpp = ctx; return (0); } void nb_ctx_done(struct nb_ctx *ctx) { if (ctx == NULL) return; if (ctx->nb_scope) free(ctx->nb_scope); if (ctx) free(ctx); } void nb_ctx_setnbflags(struct nb_ctx *nb, int ns_ena, int bc_ena) { nb->nb_flags &= ~(NBCF_NS_ENABLE | NBCF_BC_ENABLE); if (ns_ena) { nb->nb_flags |= NBCF_NS_ENABLE; if (bc_ena) nb->nb_flags |= NBCF_BC_ENABLE; } } int nb_ctx_setwins(struct nb_ctx *ctx, const char *wins1, const char *wins2) { struct in_addr ina; int error; if (wins1 == NULL) { ctx->nb_wins1 = 0; ctx->nb_wins2 = 0; return (0); } error = nb_resolvehost_in(wins1, &ina); if (error) { smb_error(dgettext(TEXT_DOMAIN, "can't resolve %s"), error, wins1); return (error); } ctx->nb_wins1 = ina.s_addr; if (wins2 == NULL) ctx->nb_wins2 = 0; else { error = nb_resolvehost_in(wins2, &ina); if (error) { smb_error(dgettext(TEXT_DOMAIN, "can't resolve %s"), error, wins2); return (error); } ctx->nb_wins2 = ina.s_addr; } return (0); } /* * This is called by "smbutil lookup" to handle the * "-w wins_server" option. Let the semantics of * this option be: Use specified WINS server only. * If specified server is the broadcast address, * set broadcast mode (and no WINS servers). */ int nb_ctx_setns(struct nb_ctx *ctx, const char *addr) { int error; error = nb_ctx_setwins(ctx, addr, NULL); if (error) return (error); /* Deal with explicit request for broadcast. */ if (ctx->nb_wins1 == INADDR_BROADCAST) { ctx->nb_wins1 = 0; ctx->nb_flags |= NBCF_BC_ENABLE; } return (0); } int nb_ctx_setscope(struct nb_ctx *ctx, const char *scope) { size_t slen = strlen(scope); if (slen >= 128) { smb_error(dgettext(TEXT_DOMAIN, "scope '%s' is too long"), 0, scope); return (ENAMETOOLONG); } if (ctx->nb_scope) free(ctx->nb_scope); ctx->nb_scope = malloc(slen + 1); if (ctx->nb_scope == NULL) return (ENOMEM); nls_str_upper(ctx->nb_scope, scope); return (0); } /* * Now get the WINS server IP addresses directly * when reading the RC files, so no longer need to * lookup any names here. */ int nb_ctx_resolve(struct nb_ctx *ctx) { ctx->nb_flags |= NBCF_RESOLVED; return (0); } /* * used level values: * 0 - default * 1 - server * * All of these are normally system-wide settings; * the checks are in rc_parse() in rcfile.c. */ int nb_ctx_readrcsection(struct rcfile *rcfile, struct nb_ctx *ctx, const char *sname, int level) { char *wins1, *wins2; int error; int nbns_enable; int nbns_broadcast; if (level > 1) return (EINVAL); /* External callers pass NULL to get the default. */ if (rcfile == NULL) rcfile = smb_rc; #ifdef NOT_DEFINED rc_getint(rcfile, sname, "nbtimeout", &ctx->nb_timo); rc_getstringptr(rcfile, sname, "nbscope", &p); if (p) nb_ctx_setscope(ctx, p); #endif /* * Get "wins1", "wins2" config strings. * Also support legacy "nbns". */ rc_getstringptr(rcfile, sname, "wins1", &wins1); if (wins1 == NULL) rc_getstringptr(rcfile, sname, "nbns", &wins1); rc_getstringptr(rcfile, sname, "wins2", &wins2); if (wins1 != NULL) { error = nb_ctx_setwins(ctx, wins1, wins2); if (error) { smb_error(dgettext(TEXT_DOMAIN, "invalid address specified in the section %s"), 0, sname); return (error); } } /* * Want to use nb_ctx_setnbflags here, but * have to get both boolean values first, * either from settings or defaults. */ nbns_enable = nbns_broadcast = 1; /* defaults */ rc_getbool(rcfile, sname, "nbns_enable", &nbns_enable); rc_getbool(rcfile, sname, "nbns_broadcast", &nbns_broadcast); nb_ctx_setnbflags(ctx, nbns_enable, nbns_broadcast); return (0); } #ifdef I18N /* never defined, permits xgettext(1) to pick out strings */ static const char *nb_err_rcode[] = { gettext("bad request/response format"), gettext("NBNS server failure"), gettext("no such name"), gettext("unsupported request"), gettext("request rejected"), gettext("name already registered)" }; static const char *nb_err[] = { gettext("host not found"), gettext("too many redirects"), gettext("invalid response"), gettext("NETBIOS name too long"), gettext("no interface to broadcast on and no NBNS server specified") }; #else static const char *nb_err_rcode[] = { "bad request/response format", "NBNS server failure", "no such name", "unsupported request", "request rejected", "name already registered" }; static const char *nb_err[] = { "host not found", "too many redirects", "invalid response", "NETBIOS name too long", "no interface to broadcast on and no NBNS server specified" }; #endif const char * nb_strerror(int error) { if (error == 0) return (NULL); if (error <= NBERR_ACTIVE) return (nb_err_rcode[error - 1]); else if (error >= NBERR_HOSTNOTFOUND && error < NBERR_MAX) return (nb_err[error - NBERR_HOSTNOTFOUND]); else return (NULL); }