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Diffstat (limited to 'contrib/amd/fsinfo/wr_atab.c')
-rw-r--r-- | contrib/amd/fsinfo/wr_atab.c | 334 |
1 files changed, 334 insertions, 0 deletions
diff --git a/contrib/amd/fsinfo/wr_atab.c b/contrib/amd/fsinfo/wr_atab.c new file mode 100644 index 0000000..be870c0 --- /dev/null +++ b/contrib/amd/fsinfo/wr_atab.c @@ -0,0 +1,334 @@ +/* + * Copyright (c) 1997-1998 Erez Zadok + * Copyright (c) 1989 Jan-Simon Pendry + * Copyright (c) 1989 Imperial College of Science, Technology & Medicine + * Copyright (c) 1989 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Jan-Simon Pendry at Imperial College, London. + * + * 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 the University of + * California, Berkeley and its contributors. + * 4. 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. + * + * %W% (Berkeley) %G% + * + * $Id: wr_atab.c,v 5.2.2.1 1992/02/09 15:09:44 jsp beta $ + * + */ + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif /* HAVE_CONFIG_H */ +#include <am_defs.h> +#include <fsi_data.h> +#include <fsinfo.h> + + +/* + * Write a sequence of automount mount map entries + */ +static int +write_amount_info(FILE *af, automount *ap, int sk) +{ + int errors = 0; + + if (ap->a_mount) { + /* + * A pseudo-directory. + * This can also be a top-level directory, in which + * case the type:=auto is not wanted... + * + * type:=auto;fs:=${map};pref:=whatever/ + */ + automount *ap2; + if (strlen(ap->a_name) > sk) { + fprintf(af, "%s type:=auto;fs:=${map};pref:=%s/\n", + ap->a_name + sk, ap->a_name + sk); + } + ITER(ap2, automount, ap->a_mount) + errors += write_amount_info(af, ap2, sk); + } else if (ap->a_hardwiredfs) { + + /* + * A hardwired filesystem "hostname:path" + * rhost:=hostname;rfs:=path + */ + char *key = ap->a_name + sk; + char *hostname = ap->a_hardwiredfs; + char *path = strrchr(hostname, (int) ':'); + + if (path == NULL) { + fprintf(stderr, "%s: %s not an NFS filesystem\n", ap->a_name, ap->a_hardwiredfs); + errors++; + } else { + *path = '\0'; + path++; + + /* + * Output the map key + */ + fputs(key, af); + fprintf(af, " rhost:=%s", hostname); + fprintf(af, ";rfs:=%s", path); + if (ap->a_opts && !STREQ(ap->a_opts, "")) { + fprintf(af, ";%s", ap->a_opts); + } + fputc('\n', af); + path--; + *path = ':'; + } + } else if (ap->a_mounted) { + + /* + * A mounted partition + * type:=link [ link entries ] type:=nfs [ nfs entries ] + */ + dict_data *dd; + dict_ent *de = ap->a_mounted; + int done_type_link = 0; + char *key = ap->a_name + sk; + + /* + * Output the map key + */ + fputs(key, af); + + /* + * First output any Link locations that would not + * otherwise be correctly mounted. These refer + * to filesystem which are not mounted in the same + * place which the automounter would use. + */ + ITER(dd, dict_data, &de->de_q) { + fsi_mount *mp = (fsi_mount *) dd->dd_data; + /* + * If the mount point and the exported volname are the + * same then this filesystem will be recognised by + * the restart code - so we don't need to put out a + * special rule for it. + */ + if (mp->m_dk->d_host->h_lochost) { + char amountpt[1024]; + compute_automount_point(amountpt, mp->m_dk->d_host, mp->m_exported->m_volname); + if (!STREQ(mp->m_dk->d_mountpt, amountpt)) { + /* + * ap->a_volname is the name of the aliased volume + * mp->m_name is the mount point of the filesystem + * mp->m_volname is the volume name of the filesystems + */ + + /* + * Find length of key and volume names + */ + int avlen = strlen(ap->a_volname); + int mnlen = strlen(mp->m_volname); + + /* + * Make sure a -type:=link is output once + */ + if (!done_type_link) { + done_type_link = 1; + fputs(" -type:=link", af); + } + + /* + * Output a selector for the hostname, + * the device from which to mount and + * where to mount. This will correspond + * to the values output for the fstab. + */ + if (mp->m_dk->d_host->h_lochost) + fprintf(af, " host==%s", mp->m_dk->d_host->h_lochost); + else + fprintf(af, " hostd==%s", mp->m_dk->d_host->h_hostname); + fprintf(af, ";fs:=%s", mp->m_name); + + /* + * ... and a sublink if needed + */ + if (mnlen < avlen) { + char *sublink = ap->a_volname + mnlen + 1; + fprintf(af, "/%s", sublink); + } + fputs(" ||", af); + } + } + } + + /* + * Next do the NFS locations + */ + if (done_type_link) + fputs(" -", af); + + ITER(dd, dict_data, &de->de_q) { + fsi_mount *mp = (fsi_mount *) dd->dd_data; + int namelen = mp->m_name_len; + int exp_namelen = mp->m_exported->m_name_len; + int volnlen = strlen(ap->a_volname); + int mvolnlen = strlen(mp->m_volname); + + fputc(' ', af); + + /* + * Output any selectors + */ + if (mp->m_sel) + fprintf(af, "%s;", mp->m_sel); + + /* + * Print host and volname of exported filesystem + */ + fprintf(af, "rhost:=%s", + mp->m_dk->d_host->h_lochost ? + mp->m_dk->d_host->h_lochost : + mp->m_dk->d_host->h_hostname); + fprintf(af, ";rfs:=%s", mp->m_exported->m_volname); + if (ap->a_opts && !STREQ(ap->a_opts, "")) { + fprintf(af, ";%s", ap->a_opts); + } + + /* + * Now determine whether a sublink is required. + */ + if (exp_namelen < namelen || mvolnlen < volnlen) { + char sublink[1024]; + sublink[0] = '\0'; + if (exp_namelen < namelen) { + strcat(sublink, mp->m_name + exp_namelen + 1); + if (mvolnlen < volnlen) + strcat(sublink, "/"); + } + if (mvolnlen < volnlen) + strcat(sublink, ap->a_volname + mvolnlen + 1); + + fprintf(af, ";sublink:=%s", sublink); + } + } + fputc('\n', af); + } else if (ap->a_symlink) { + + /* + * A specific link. + * + * type:=link;fs:=whatever + */ + fprintf(af, "%s type:=link;fs:=%s\n", ap->a_name + sk, ap->a_symlink); + } + + return errors; +} + + +/* + * Write a single automount configuration file + */ +static int +write_amount( qelem *q, char *def) +{ + automount *ap; + int errors = 0; + int direct = 0; + + /* + * Output all indirect maps + */ + ITER(ap, automount, q) { + FILE *af; + char *p; + + /* + * If there is no a_mount node then this is really + * a direct mount, so just keep a count and continue. + * Direct mounts are output into a special file during + * the second pass below. + */ + if (!ap->a_mount) { + direct++; + continue; + } + + p = strrchr(ap->a_name, '/'); + if (!p) + p = ap->a_name; + else + p++; + + af = pref_open(mount_pref, p, gen_hdr, ap->a_name); + if (af) { + show_new(ap->a_name); + fputs("/defaults ", af); + if (*def) + fprintf(af, "%s;", def); + fputs("type:=nfs\n", af); + errors += write_amount_info(af, ap, strlen(ap->a_name) + 1); + errors += pref_close(af); + } + } + + /* + * Output any direct map entries which were found during the + * previous pass over the data. + */ + if (direct) { + FILE *af = pref_open(mount_pref, "direct.map", info_hdr, "direct mount"); + + if (af) { + show_new("direct mounts"); + fputs("/defaults ", af); + if (*def) + fprintf(af, "%s;", def); + fputs("type:=nfs\n", af); + ITER(ap, automount, q) + if (!ap->a_mount) + errors += write_amount_info(af, ap, 1); + errors += pref_close(af); + } + } + return errors; +} + + +/* + * Write all the needed automount configuration files + */ +int +write_atab(qelem *q) +{ + int errors = 0; + + if (mount_pref) { + auto_tree *tp; + show_area_being_processed("write automount", 5); + ITER(tp, auto_tree, q) + errors += write_amount(tp->t_mount, tp->t_defaults); + } + + return errors; +} |