summaryrefslogtreecommitdiffstats
path: root/booster/src/booster_fstab.c
diff options
context:
space:
mode:
Diffstat (limited to 'booster/src/booster_fstab.c')
-rw-r--r--booster/src/booster_fstab.c452
1 files changed, 0 insertions, 452 deletions
diff --git a/booster/src/booster_fstab.c b/booster/src/booster_fstab.c
deleted file mode 100644
index 202249cadf3..00000000000
--- a/booster/src/booster_fstab.c
+++ /dev/null
@@ -1,452 +0,0 @@
-/* Utilities for reading/writing fstab, mtab, etc.
- Copyright (C) 1995-2000, 2001, 2002, 2003, 2006
- Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
-
-#include <alloca.h>
-#include <stdio.h>
-#include <string.h>
-#include <sys/types.h>
-#include "booster_fstab.h"
-#include <stdlib.h>
-#include <libglusterfsclient.h>
-#include <errno.h>
-
-/* The default timeout for inode and stat cache. */
-#define BOOSTER_DEFAULT_ATTR_TIMEO 5 /* In Secs */
-
-/* Prepare to begin reading and/or writing mount table entries from the
- beginning of FILE. MODE is as for `fopen'. */
-glusterfs_fstab_t *
-glusterfs_fstab_init (const char *file, const char *mode)
-{
- glusterfs_fstab_t *handle = NULL;
- handle = calloc (1, sizeof (glusterfs_fstab_t));
- if (!handle) {
- gf_log ("booster-fstab", GF_LOG_ERROR, "Memory allocation"
- " failed");
- goto out;
- }
-
- gf_log ("booster-fstab", GF_LOG_DEBUG, "FSTAB file: %s", file);
- FILE *result = fopen (file,mode);
- if (result != NULL) {
- handle->fp = result;
- } else {
- gf_log ("booster-fstab", GF_LOG_ERROR, "FSTAB file open failed:"
- " %s", strerror (errno));
- free (handle);
- handle = NULL;
- }
-
-out:
-
- return handle;
-}
-
-int
-glusterfs_fstab_close (glusterfs_fstab_t *h)
-{
- if (!h)
- return -1;
-
- if (h->fp)
- fclose (h->fp);
-
- return 0;
-}
-
-/* Since the values in a line are separated by spaces, a name cannot
- contain a space. Therefore some programs encode spaces in names
- by the strings "\040". We undo the encoding when reading an entry.
- The decoding happens in place. */
-static char *
-decode_name (char *buf)
-{
- char *rp = buf;
- char *wp = buf;
-
- do
- if (rp[0] == '\\' && rp[1] == '0' && rp[2] == '4'
- && rp[3] == '0')
- {
- /* \040 is a SPACE. */
- *wp++ = ' ';
- rp += 3;
- }
- else if (rp[0] == '\\' && rp[1] == '0' && rp[2] == '1'
- && rp[3] == '1')
- {
- /* \011 is a TAB. */
- *wp++ = '\t';
- rp += 3;
- }
- else if (rp[0] == '\\' && rp[1] == '0' && rp[2] == '1'
- && rp[3] == '2')
- {
- /* \012 is a NEWLINE. */
- *wp++ = '\n';
- rp += 3;
- }
- else if (rp[0] == '\\' && rp[1] == '\\')
- {
- /* We have to escape \\ to be able to represent all
- * characters. */
- *wp++ = '\\';
- rp += 1;
- }
- else if (rp[0] == '\\' && rp[1] == '1' && rp[2] == '3'
- && rp[3] == '4')
- {
- /* \134 is also \\. */
- *wp++ = '\\';
- rp += 3;
- }
- else
- *wp++ = *rp;
- while (*rp++ != '\0');
-
- return buf;
-}
-
-
-/* Read one mount table entry from STREAM. Returns a pointer to storage
- reused on the next call, or null for EOF or error (use feof/ferror to
- check). */
-struct glusterfs_mntent *
-__glusterfs_fstab_getent (FILE *stream, struct glusterfs_mntent *mp,
- char *buffer, int bufsiz)
-{
- char *cp;
- char *head;
-
- do
- {
- char *end_ptr;
-
- if (fgets (buffer, bufsiz, stream) == NULL)
- {
- return NULL;
- }
-
- end_ptr = strchr (buffer, '\n');
- if (end_ptr != NULL) /* chop newline */
- *end_ptr = '\0';
- else
- {
- /* Not the whole line was read. Do it now but forget
- * it. */
- char tmp[1024];
- while (fgets (tmp, sizeof tmp, stream) != NULL)
- if (strchr (tmp, '\n') != NULL)
- break;
- }
-
- head = buffer + strspn (buffer, " \t");
- /* skip empty lines and comment lines: */
- }
- while (head[0] == '\0' || head[0] == '#');
-
- cp = strsep (&head, " \t");
- mp->mnt_fsname = cp != NULL ? decode_name (cp) : (char *) "";
- if (head)
- head += strspn (head, " \t");
- cp = strsep (&head, " \t");
- mp->mnt_dir = cp != NULL ? decode_name (cp) : (char *) "";
- if (head)
- head += strspn (head, " \t");
- cp = strsep (&head, " \t");
- mp->mnt_type = cp != NULL ? decode_name (cp) : (char *) "";
- if (head)
- head += strspn (head, " \t");
- cp = strsep (&head, " \t");
- mp->mnt_opts = cp != NULL ? decode_name (cp) : (char *) "";
- switch (head ? sscanf (head, " %d %d ", &mp->mnt_freq,
- &mp->mnt_passno) : 0)
- {
- case 0:
- mp->mnt_freq = 0;
- case 1:
- mp->mnt_passno = 0;
- case 2:
- break;
- }
-
- return mp;
-}
-
-struct glusterfs_mntent *
-glusterfs_fstab_getent (glusterfs_fstab_t *h)
-{
- if (!h)
- return NULL;
-
- if (!h->fp)
- return NULL;
-
- return __glusterfs_fstab_getent (h->fp, &h->tmpent, h->buf,
- GF_MNTENT_BUFSIZE);
-}
-
-/* We have to use an encoding for names if they contain spaces or tabs.
- To be able to represent all characters we also have to escape the
- backslash itself. This "function" must be a macro since we use
- `alloca'. */
-#define encode_name(name) \
- do { \
- const char *rp = name; \
- \
- while (*rp != '\0') \
- if (*rp == ' ' || *rp == '\t' || *rp == '\\') \
- break; \
- else \
- ++rp; \
- \
- if (*rp != '\0') \
- { \
- /* In the worst case the length of the string \
- * can increase to four times the current \
- * length. */ \
- char *wp; \
- \
- rp = name; \
- name = wp = (char *) alloca (strlen (name) * 4 + 1); \
- \
- do { \
- if (*rp == ' ') \
- { \
- *wp++ = '\\'; \
- *wp++ = '0'; \
- *wp++ = '4'; \
- *wp++ = '0'; \
- } \
- else if (*rp == '\t') \
- { \
- *wp++ = '\\'; \
- *wp++ = '0'; \
- *wp++ = '1'; \
- *wp++ = '1'; \
- } \
- else if (*rp == '\n') \
- { \
- *wp++ = '\\'; \
- *wp++ = '0'; \
- *wp++ = '1'; \
- *wp++ = '2'; \
- } \
- else if (*rp == '\\') \
- { \
- *wp++ = '\\'; \
- *wp++ = '\\'; \
- } \
- else \
- *wp++ = *rp; \
- } while (*rp++ != '\0'); \
- } \
- } while (0) \
-
-
-int
-glusterfs_fstab_addent (glusterfs_fstab_t *h,
- const struct glusterfs_mntent *mnt)
-{
- struct glusterfs_mntent mntcopy = *mnt;
- if (!h)
- return -1;
-
- if (!h->fp)
- return -1;
-
- if (fseek (h->fp, 0, SEEK_END))
- return -1;
-
- /* Encode spaces and tabs in the names. */
- encode_name (mntcopy.mnt_fsname);
- encode_name (mntcopy.mnt_dir);
- encode_name (mntcopy.mnt_type);
- encode_name (mntcopy.mnt_opts);
-
- return (fprintf (h->fp, "%s %s %s %s %d %d\n",
- mntcopy.mnt_fsname,
- mntcopy.mnt_dir,
- mntcopy.mnt_type,
- mntcopy.mnt_opts,
- mntcopy.mnt_freq,
- mntcopy.mnt_passno)
- < 0 ? 1 : 0);
-}
-
-
-/* Search MNT->mnt_opts for an option matching OPT.
- Returns the address of the substring, or null if none found. */
-char *
-glusterfs_fstab_hasoption (const struct glusterfs_mntent *mnt, const char *opt)
-{
- const size_t optlen = strlen (opt);
- char *rest = mnt->mnt_opts, *p;
-
- while ((p = strstr (rest, opt)) != NULL)
- {
- if ((p == rest || p[-1] == ',')
- && (p[optlen] == '\0' || p[optlen] == '=' || p[optlen] == ','))
- return p;
-
- rest = strchr (p, ',');
- if (rest == NULL)
- break;
- ++rest;
- }
-
- return NULL;
-}
-
-void
-clean_init_params (glusterfs_init_params_t *ipars)
-{
- if (!ipars)
- return;
-
- if (ipars->volume_name)
- free (ipars->volume_name);
-
- if (ipars->specfile)
- free (ipars->specfile);
-
- if (ipars->logfile)
- free (ipars->logfile);
-
- if (ipars->loglevel)
- free (ipars->loglevel);
-
- return;
-}
-
-char *
-get_option_value (char *opt)
-{
- char *val = NULL;
- char *saveptr = NULL;
- char *copy_opt = NULL;
- char *retval = NULL;
-
- copy_opt = strdup (opt);
-
- /* Get the = before the value of the option. */
- val = index (copy_opt, '=');
- if (val) {
- /* Move to start of option */
- ++val;
-
- /* Now, to create a '\0' delimited string out of the
- * options string, first get the position where the
- * next option starts, that would be the next ','.
- */
- saveptr = index (val, ',');
- if (saveptr)
- *saveptr = '\0';
- retval = strdup (val);
- }
-
- free (copy_opt);
-
- return retval;
-}
-
-void
-booster_mount (struct glusterfs_mntent *ent)
-{
- char *opt = NULL;
- glusterfs_init_params_t ipars;
- time_t timeout = BOOSTER_DEFAULT_ATTR_TIMEO;
- char *timeostr = NULL;
- char *endptr = NULL;
-
- if (!ent)
- return;
-
- gf_log ("booster-fstab", GF_LOG_DEBUG, "Mount entry: volfile: %s,"
- " VMP: %s, Type: %s, Options: %s", ent->mnt_fsname,
- ent->mnt_dir, ent->mnt_type, ent->mnt_opts);
- if ((strcmp (ent->mnt_type, "glusterfs") != 0)) {
- gf_log ("booster-fstab", GF_LOG_ERROR, "Type is not glusterfs");
- return;
- }
-
- memset (&ipars, 0, sizeof (glusterfs_init_params_t));
- if (ent->mnt_fsname)
- ipars.specfile = strdup (ent->mnt_fsname);
-
- opt = glusterfs_fstab_hasoption (ent, "subvolume");
- if (opt)
- ipars.volume_name = get_option_value (opt);
-
- opt = glusterfs_fstab_hasoption (ent, "log-file");
- if (!opt)
- opt = glusterfs_fstab_hasoption (ent, "logfile");
-
- if (opt)
- ipars.logfile = get_option_value (opt);
-
- opt = glusterfs_fstab_hasoption (ent, "log-level");
- if (!opt)
- opt = glusterfs_fstab_hasoption (ent, "loglevel");
-
- if (opt)
- ipars.loglevel = get_option_value (opt);
-
- /* Attribute cache timeout */
- opt = glusterfs_fstab_hasoption (ent, "attr_timeout");
- if (opt) {
- timeostr = get_option_value (opt);
- if (timeostr)
- timeout = strtol (timeostr, &endptr, 10);
- }
-
- ipars.lookup_timeout = timeout;
- ipars.stat_timeout = timeout;
-
- if ((glusterfs_mount (ent->mnt_dir, &ipars)) == -1)
- gf_log ("booster-fstab", GF_LOG_ERROR, "VMP mounting failed");
-
- clean_init_params (&ipars);
-}
-
-int
-booster_configure (char *confpath)
-{
- int ret = -1;
- glusterfs_fstab_t *handle = NULL;
- struct glusterfs_mntent *ent = NULL;
-
- if (!confpath)
- goto out;
-
- handle = glusterfs_fstab_init (confpath, "r");
- if (!handle)
- goto out;
-
- while ((ent = glusterfs_fstab_getent (handle)) != NULL)
- booster_mount (ent);
-
- glusterfs_fstab_close (handle);
- ret = 0;
-out:
- return ret;
-}
-
-
generated by cgit (git 2.34.1) at 2024-05-22 02:22:21 +0000