-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* GPL HEADER END
*/
/*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2012, Whamcloud, Inc.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/syscall.h>
+#include <sys/xattr.h>
#include <fnmatch.h>
#include <glob.h>
#ifdef HAVE_LINUX_UNISTD_H
#else
#include <unistd.h>
#endif
+#include <poll.h>
-#include <libcfs/libcfsutil.h> /* l_ioctl */
#include <liblustre.h>
#include <lnet/lnetctl.h>
#include <obd.h>
-#include <lustre_lib.h>
#include <obd_lov.h>
-#include <lustre/liblustreapi.h>
+#include <lustre/lustreapi.h>
static unsigned llapi_dir_filetype_table[] = {
[DT_UNKNOWN]= 0,
llapi_msg_level = level;
}
-void llapi_err(int level, char *fmt, ...)
+/* llapi_error will preserve errno */
+void llapi_error(int level, int _rc, char *fmt, ...)
{
va_list args;
- int tmp_errno = abs(errno);
+ int tmp_errno = errno;
+ /* to protect using errno as _rc argument */
+ int rc = abs(_rc);
if ((level & LLAPI_MSG_MASK) > llapi_msg_level)
return;
if (level & LLAPI_MSG_NO_ERRNO)
fprintf(stderr, "\n");
else
- fprintf(stderr, ": %s (%d)\n", strerror(tmp_errno), tmp_errno);
+ fprintf(stderr, ": %s (%d)\n", strerror(rc), rc);
+ errno = tmp_errno;
}
-#define llapi_err_noerrno(level, fmt, a...) \
- llapi_err((level) | LLAPI_MSG_NO_ERRNO, fmt, ## a)
-
+/* llapi_printf will preserve errno */
void llapi_printf(int level, char *fmt, ...)
{
va_list args;
+ int tmp_errno = errno;
if ((level & LLAPI_MSG_MASK) > llapi_msg_level)
return;
va_start(args, fmt);
vfprintf(stdout, fmt, args);
va_end(args);
+ errno = tmp_errno;
}
/**
- * size_units is unchanged if no specifier used
+ * size_units is to be initialized (or zeroed) by caller.
*/
int parse_size(char *optarg, unsigned long long *size,
unsigned long long *size_units, int bytes_spec)
{
char *end;
+ if (strncmp(optarg, "-", 1) == 0)
+ return -1;
+
+ if (*size_units == 0)
+ *size_units = 1;
+
*size = strtoull(optarg, &end, 0);
if (*end != '\0') {
- if ((*end == 'b') && *(end+1) == '\0' &&
+ if ((*end == 'b') && *(end + 1) == '\0' &&
(*size & (~0ULL << (64 - 9))) == 0 &&
!bytes_spec) {
- *size <<= 9;
*size_units = 1 << 9;
- } else if ((*end == 'b') && *(end+1) == '\0' &&
+ } else if ((*end == 'b') &&
+ *(end + 1) == '\0' &&
bytes_spec) {
*size_units = 1;
} else if ((*end == 'k' || *end == 'K') &&
- *(end+1) == '\0' && (*size &
- (~0ULL << (64 - 10))) == 0) {
- *size <<= 10;
+ *(end + 1) == '\0' &&
+ (*size & (~0ULL << (64 - 10))) == 0) {
*size_units = 1 << 10;
} else if ((*end == 'm' || *end == 'M') &&
- *(end+1) == '\0' && (*size &
- (~0ULL << (64 - 20))) == 0) {
- *size <<= 20;
+ *(end + 1) == '\0' &&
+ (*size & (~0ULL << (64 - 20))) == 0) {
*size_units = 1 << 20;
} else if ((*end == 'g' || *end == 'G') &&
- *(end+1) == '\0' && (*size &
- (~0ULL << (64 - 30))) == 0) {
- *size <<= 30;
+ *(end + 1) == '\0' &&
+ (*size & (~0ULL << (64 - 30))) == 0) {
*size_units = 1 << 30;
} else if ((*end == 't' || *end == 'T') &&
- *(end+1) == '\0' && (*size &
- (~0ULL << (64 - 40))) == 0) {
- *size <<= 40;
+ *(end + 1) == '\0' &&
+ (*size & (~0ULL << (64 - 40))) == 0) {
*size_units = 1ULL << 40;
} else if ((*end == 'p' || *end == 'P') &&
- *(end+1) == '\0' && (*size &
- (~0ULL << (64 - 50))) == 0) {
- *size <<= 50;
+ *(end + 1) == '\0' &&
+ (*size & (~0ULL << (64 - 50))) == 0) {
*size_units = 1ULL << 50;
} else if ((*end == 'e' || *end == 'E') &&
- *(end+1) == '\0' && (*size &
- (~0ULL << (64 - 60))) == 0) {
- *size <<= 60;
+ *(end + 1) == '\0' &&
+ (*size & (~0ULL << (64 - 60))) == 0) {
*size_units = 1ULL << 60;
} else {
return -1;
}
}
-
+ *size *= *size_units;
return 0;
}
-int llapi_stripe_limit_check(unsigned long stripe_size, int stripe_offset,
- int stripe_count, int stripe_pattern)
+/* XXX: llapi_xxx() functions return negative values upon failure */
+
+int llapi_stripe_limit_check(unsigned long long stripe_size, int stripe_offset,
+ int stripe_count, int stripe_pattern)
+{
+ int page_size, rc;
+
+ /* 64 KB is the largest common page size I'm aware of (on ia64), but
+ * check the local page size just in case. */
+ page_size = LOV_MIN_STRIPE_SIZE;
+ if (getpagesize() > page_size) {
+ page_size = getpagesize();
+ llapi_err_noerrno(LLAPI_MSG_WARN,
+ "warning: your page size (%u) is "
+ "larger than expected (%u)", page_size,
+ LOV_MIN_STRIPE_SIZE);
+ }
+ if (stripe_size < 0 || (stripe_size & (LOV_MIN_STRIPE_SIZE - 1))) {
+ rc = -EINVAL;
+ llapi_error(LLAPI_MSG_ERROR, rc, "error: bad stripe_size %lu, "
+ "must be an even multiple of %d bytes",
+ stripe_size, page_size);
+ return rc;
+ }
+ if (stripe_offset < -1 || stripe_offset > MAX_OBD_DEVICES) {
+ rc = -EINVAL;
+ llapi_error(LLAPI_MSG_ERROR, rc, "error: bad stripe offset %d",
+ stripe_offset);
+ return rc;
+ }
+ if (stripe_count < -1 || stripe_count > LOV_MAX_STRIPE_COUNT) {
+ rc = -EINVAL;
+ llapi_error(LLAPI_MSG_ERROR, rc, "error: bad stripe count %d",
+ stripe_count);
+ return rc;
+ }
+ if (stripe_size >= (1ULL << 32)) {
+ rc = -EINVAL;
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "warning: stripe size 4G or larger "
+ "is not currently supported and would wrap");
+ return rc;
+ }
+ return 0;
+}
+
+/* return the first file matching this pattern */
+static int first_match(char *pattern, char *buffer)
{
- int page_size;
+ glob_t glob_info;
+
+ if (glob(pattern, GLOB_BRACE, NULL, &glob_info))
+ return -ENOENT;
- /* 64 KB is the largest common page size I'm aware of (on ia64), but
- * check the local page size just in case. */
- page_size = LOV_MIN_STRIPE_SIZE;
- if (getpagesize() > page_size) {
- page_size = getpagesize();
- llapi_err_noerrno(LLAPI_MSG_WARN,
- "warning: your page size (%u) is "
- "larger than expected (%u)", page_size,
- LOV_MIN_STRIPE_SIZE);
+ if (glob_info.gl_pathc < 1) {
+ globfree(&glob_info);
+ return -ENOENT;
}
- if (stripe_size < 0 || (stripe_size & (LOV_MIN_STRIPE_SIZE - 1))) {
- llapi_err(LLAPI_MSG_ERROR, "error: bad stripe_size %lu, "
- "must be an even multiple of %d bytes",
- stripe_size, page_size);
+
+ strcpy(buffer, glob_info.gl_pathv[0]);
+
+ globfree(&glob_info);
+ return 0;
+}
+
+static int find_target_obdpath(char *fsname, char *path)
+{
+ glob_t glob_info;
+ char pattern[PATH_MAX + 1];
+ int rc;
+
+ snprintf(pattern, PATH_MAX,
+ "/proc/fs/lustre/lov/%s-*/target_obd",
+ fsname);
+ rc = glob(pattern, GLOB_BRACE, NULL, &glob_info);
+ if (rc == GLOB_NOMATCH)
+ return -ENODEV;
+ else if (rc)
return -EINVAL;
- }
- if (stripe_offset < -1 || stripe_offset > MAX_OBD_DEVICES) {
- errno = -EINVAL;
- llapi_err(LLAPI_MSG_ERROR, "error: bad stripe offset %d",
- stripe_offset);
+
+ strcpy(path, glob_info.gl_pathv[0]);
+ globfree(&glob_info);
+ return 0;
+}
+
+static int find_poolpath(char *fsname, char *poolname, char *poolpath)
+{
+ glob_t glob_info;
+ char pattern[PATH_MAX + 1];
+ int rc;
+
+ snprintf(pattern, PATH_MAX,
+ "/proc/fs/lustre/lov/%s-*/pools/%s",
+ fsname, poolname);
+ rc = glob(pattern, GLOB_BRACE, NULL, &glob_info);
+ /* If no pools, make sure the lov is available */
+ if ((rc == GLOB_NOMATCH) &&
+ (find_target_obdpath(fsname, poolpath) == -ENODEV))
+ return -ENODEV;
+ if (rc)
return -EINVAL;
+
+ strcpy(poolpath, glob_info.gl_pathv[0]);
+ globfree(&glob_info);
+ return 0;
+}
+
+/**
+ * return a parameter string for a specific device type or mountpoint
+ *
+ * \param param_path the path to the file containing parameter data
+ * \param result buffer for parameter value string
+ * \param result_size size of buffer for return value
+ *
+ * The \param param_path is appended to /proc/{fs,sys}/{lnet,lustre} to
+ * complete the absolute path to the file containing the parameter data
+ * the user is requesting. If that file exist then the data is read from
+ * the file and placed into the \param result buffer that is passed by
+ * the user. Data is only copied up to the \param result_size to prevent
+ * overflow of the array.
+ *
+ * Return 0 for success, with a NUL-terminated string in \param result.
+ * Return -ve value for error.
+ */
+static int get_param(const char *param_path, char *result,
+ unsigned int result_size)
+{
+ char file[PATH_MAX + 1], pattern[PATH_MAX + 1], buf[result_size];
+ FILE *fp = NULL;
+ int rc = 0;
+
+ snprintf(pattern, PATH_MAX, "/proc/{fs,sys}/{lnet,lustre}/%s",
+ param_path);
+ rc = first_match(pattern, file);
+ if (rc)
+ return rc;
+
+ fp = fopen(file, "r");
+ if (fp != NULL) {
+ while (fgets(buf, result_size, fp) != NULL)
+ strcpy(result, buf);
+ fclose(fp);
+ } else {
+ rc = -errno;
}
- if (stripe_count < -1 || stripe_count > LOV_MAX_STRIPE_COUNT) {
- errno = -EINVAL;
- llapi_err(LLAPI_MSG_ERROR, "error: bad stripe count %d",
- stripe_count);
- return -EINVAL;
+ return rc;
+}
+
+#define DEVICES_LIST "/proc/fs/lustre/devices"
+
+/**
+ * return a parameter string for a specific device type or mountpoint
+ *
+ * \param fsname Lustre filesystem name (optional)
+ * \param file_path path to file in filesystem (optional, if fsname unset)
+ * \param obd_type Lustre OBD device type
+ * \param param_name parameter name to fetch
+ * \param value return buffer for parameter value string
+ * \param val_len size of buffer for return value
+ *
+ * If fsname is specified then the parameter will be from that filesystem
+ * (if it exists). If file_path is given and it is in a mounted Lustre
+ * filesystem, then the parameter will be otherwise the value may be
+ * from any mounted filesystem (if there is more than one).
+ *
+ * If "obd_type" matches a Lustre device then the first matching device
+ * (as with "lctl dl", constrained by \param fsname or \param mount_path)
+ * will be used to provide the return value, otherwise the first such
+ * device found will be used.
+ *
+ * Return 0 for success, with a NUL-terminated string in \param buffer.
+ * Return -ve value for error.
+ */
+static int get_param_obdvar(const char *fsname, const char *file_path,
+ const char *obd_type, const char *param_name,
+ char *value, unsigned int val_len)
+{
+ char devices[PATH_MAX + 1], dev[PATH_MAX + 1] = "*", fs[PATH_MAX + 1];
+ FILE *fp = fopen(DEVICES_LIST, "r");
+ int rc = 0;
+
+ if (!fsname && file_path) {
+ rc = llapi_search_fsname(file_path, fs);
+ if (rc) {
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "'%s' is not on a Lustre filesystem",
+ file_path);
+ if (fp != NULL)
+ fclose(fp);
+ return rc;
+ }
+ } else if (fsname) {
+ strcpy(fs, fsname);
}
- if (stripe_count > 0 && (__u64)stripe_size * stripe_count > 0xffffffff){
- errno = -EINVAL;
- llapi_err(LLAPI_MSG_ERROR, "error: stripe_size %lu * "
- "stripe_count %u exceeds 4GB", stripe_size,
- stripe_count);
- return -EINVAL;
+
+ if (fp == NULL) {
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc, "error: opening "DEVICES_LIST);
+ return rc;
}
- return 0;
+
+ while (fgets(devices, sizeof(devices), fp) != NULL) {
+ char *bufp = devices, *tmp;
+
+ while (bufp[0] == ' ')
+ ++bufp;
+
+ tmp = strstr(bufp, obd_type);
+ if (tmp) {
+ tmp += strlen(obd_type) + 1;
+ if (strcmp(tmp, fs))
+ continue;
+ strcpy(dev, tmp);
+ tmp = strchr(dev, ' ');
+ *tmp = '\0';
+ break;
+ }
+ }
+
+ if (dev[0] == '*' && strlen(fs))
+ snprintf(dev, PATH_MAX, "%s-*", fs);
+ snprintf(devices, PATH_MAX, "%s/%s/%s", obd_type, dev, param_name);
+ fclose(fp);
+ return get_param(devices, value, val_len);
+}
+
+static int get_mds_md_size(char *path)
+{
+ int lumlen = lov_mds_md_size(LOV_MAX_STRIPE_COUNT, LOV_MAGIC_V3);
+ char buf[16];
+
+ /* Now get the maxea from llite proc */
+ if (!get_param_obdvar(NULL, path, "llite", "max_easize",
+ buf, sizeof(buf)))
+ lumlen = atoi(buf);
+ return lumlen;
}
-static int poolpath(char *fsname, char *pathname, char *pool_pathname);
+/*
+ * if pool is NULL, search ostname in target_obd
+ * if pool is not NULL:
+ * if pool not found returns errno < 0
+ * if ostname is NULL, returns 1 if pool is not empty and 0 if pool empty
+ * if ostname is not NULL, returns 1 if OST is in pool and 0 if not
+ */
+int llapi_search_ost(char *fsname, char *poolname, char *ostname)
+{
+ FILE *fd;
+ char buffer[PATH_MAX + 1];
+ int len = 0, rc;
+
+ if (ostname != NULL)
+ len = strlen(ostname);
+
+ if (poolname == NULL)
+ rc = find_target_obdpath(fsname, buffer);
+ else
+ rc = find_poolpath(fsname, poolname, buffer);
+ if (rc)
+ return rc;
+
+ fd = fopen(buffer, "r");
+ if (fd == NULL)
+ return -errno;
+
+ while (fgets(buffer, sizeof(buffer), fd) != NULL) {
+ if (poolname == NULL) {
+ char *ptr;
+ /* Search for an ostname in the list of OSTs
+ Line format is IDX: fsname-OSTxxxx_UUID STATUS */
+ ptr = strchr(buffer, ' ');
+ if ((ptr != NULL) &&
+ (strncmp(ptr + 1, ostname, len) == 0)) {
+ fclose(fd);
+ return 1;
+ }
+ } else {
+ /* Search for an ostname in a pool,
+ (or an existing non-empty pool if no ostname) */
+ if ((ostname == NULL) ||
+ (strncmp(buffer, ostname, len) == 0)) {
+ fclose(fd);
+ return 1;
+ }
+ }
+ }
+ fclose(fd);
+ return 0;
+}
int llapi_file_open_pool(const char *name, int flags, int mode,
- unsigned long stripe_size, int stripe_offset,
+ unsigned long long stripe_size, int stripe_offset,
int stripe_count, int stripe_pattern, char *pool_name)
{
struct lov_user_md_v3 lum = { 0 };
int fd, rc = 0;
int isdir = 0;
- char fsname[MAX_OBD_NAME + 1], *ptr;
+
+ /* Make sure we have a good pool */
+ if (pool_name != NULL) {
+ char fsname[MAX_OBD_NAME + 1], *ptr;
+
+ rc = llapi_search_fsname(name, fsname);
+ if (rc) {
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "'%s' is not on a Lustre filesystem",
+ name);
+ return rc;
+ }
+
+ /* in case user gives the full pool name <fsname>.<poolname>,
+ * strip the fsname */
+ ptr = strchr(pool_name, '.');
+ if (ptr != NULL) {
+ *ptr = '\0';
+ if (strcmp(pool_name, fsname) != 0) {
+ *ptr = '.';
+ llapi_err_noerrno(LLAPI_MSG_ERROR,
+ "Pool '%s' is not on filesystem '%s'",
+ pool_name, fsname);
+ return -EINVAL;
+ }
+ pool_name = ptr + 1;
+ }
+
+ /* Make sure the pool exists and is non-empty */
+ rc = llapi_search_ost(fsname, pool_name, NULL);
+ if (rc < 1) {
+ llapi_err_noerrno(LLAPI_MSG_ERROR,
+ "pool '%s.%s' %s", fsname, pool_name,
+ rc == 0 ? "has no OSTs" : "does not exist");
+ return -EINVAL;
+ }
+ }
fd = open(name, flags | O_LOV_DELAY_CREATE, mode);
if (fd < 0 && errno == EISDIR) {
if (fd < 0) {
rc = -errno;
- llapi_err(LLAPI_MSG_ERROR, "unable to open '%s'", name);
+ llapi_error(LLAPI_MSG_ERROR, rc, "unable to open '%s'", name);
return rc;
}
- if ((rc = llapi_stripe_limit_check(stripe_size, stripe_offset,
- stripe_count, stripe_pattern)) != 0){
- errno = rc;
+ rc = llapi_stripe_limit_check(stripe_size, stripe_offset, stripe_count,
+ stripe_pattern);
+ if (rc != 0)
goto out;
- }
/* Initialize IOCTL striping pattern structure */
lum.lmm_magic = LOV_USER_MAGIC_V3;
lum.lmm_stripe_size = stripe_size;
lum.lmm_stripe_count = stripe_count;
lum.lmm_stripe_offset = stripe_offset;
-
- /* in case user give the full pool name <fsname>.<poolname>, skip
- * the fsname */
if (pool_name != NULL) {
- ptr = strchr(pool_name, '.');
- if (ptr != NULL) {
- strncpy(fsname, pool_name, ptr - pool_name);
- fsname[ptr - pool_name] = '\0';
- /* if fsname matches a filesystem skip it
- * if not keep the poolname as is */
- if (poolpath(fsname, NULL, NULL) == 0)
- pool_name = ptr + 1;
- }
strncpy(lum.lmm_pool_name, pool_name, LOV_MAXPOOLNAME);
} else {
/* If no pool is specified at all, use V1 request */
}
int llapi_file_open(const char *name, int flags, int mode,
- unsigned long stripe_size, int stripe_offset,
+ unsigned long long stripe_size, int stripe_offset,
int stripe_count, int stripe_pattern)
{
return llapi_file_open_pool(name, flags, mode, stripe_size,
stripe_pattern, NULL);
}
-int llapi_file_create(const char *name, unsigned long stripe_size,
+int llapi_file_create(const char *name, unsigned long long stripe_size,
int stripe_offset, int stripe_count, int stripe_pattern)
{
int fd;
return 0;
}
-int llapi_file_create_pool(const char *name, unsigned long stripe_size,
+int llapi_file_create_pool(const char *name, unsigned long long stripe_size,
int stripe_offset, int stripe_count,
int stripe_pattern, char *pool_name)
{
return 0;
}
+/*
+ * Find the fsname, the full path, and/or an open fd.
+ * Either the fsname or path must not be NULL
+ */
+#define WANT_PATH 0x1
+#define WANT_FSNAME 0x2
+#define WANT_FD 0x4
+#define WANT_INDEX 0x8
+#define WANT_ERROR 0x10
+static int get_root_path(int want, char *fsname, int *outfd, char *path,
+ int index)
+{
+ struct mntent mnt;
+ char buf[PATH_MAX], mntdir[PATH_MAX];
+ char *ptr;
+ FILE *fp;
+ int idx = 0, len = 0, mntlen, fd;
+ int rc = -ENODEV;
-static int print_pool_members(char *fs, char *pool_dir, char *pool_file)
-{
- char path[PATH_MAX + 1];
- char buf[1024];
- FILE *fd;
+ /* get the mount point */
+ fp = setmntent(MOUNTED, "r");
+ if (fp == NULL) {
+ rc = -EIO;
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "setmntent(%s) failed", MOUNTED);
+ return rc;
+ }
+ while (1) {
+ if (getmntent_r(fp, &mnt, buf, sizeof(buf)) == NULL)
+ break;
- llapi_printf(LLAPI_MSG_NORMAL, "Pool: %s.%s\n", fs, pool_file);
- sprintf(path, "%s/%s", pool_dir, pool_file);
- if ((fd = fopen(path, "r")) == NULL) {
- llapi_err(LLAPI_MSG_ERROR, "Cannot open %s\n", path);
- return -EINVAL;
+ if (!llapi_is_lustre_mnt(&mnt))
+ continue;
+
+ if ((want & WANT_INDEX) && (idx++ != index))
+ continue;
+
+ mntlen = strlen(mnt.mnt_dir);
+ ptr = strrchr(mnt.mnt_fsname, '/');
+ if (!ptr && !len) {
+ rc = -EINVAL;
+ break;
+ }
+ ptr++;
+
+ /* Check the fsname for a match, if given */
+ if (!(want & WANT_FSNAME) && fsname != NULL &&
+ (strlen(fsname) > 0) && (strcmp(ptr, fsname) != 0))
+ continue;
+
+ /* If the path isn't set return the first one we find */
+ if (path == NULL || strlen(path) == 0) {
+ strcpy(mntdir, mnt.mnt_dir);
+ if ((want & WANT_FSNAME) && fsname != NULL)
+ strcpy(fsname, ptr);
+ rc = 0;
+ break;
+ /* Otherwise find the longest matching path */
+ } else if ((strlen(path) >= mntlen) && (mntlen >= len) &&
+ (strncmp(mnt.mnt_dir, path, mntlen) == 0)) {
+ strcpy(mntdir, mnt.mnt_dir);
+ len = mntlen;
+ if ((want & WANT_FSNAME) && fsname != NULL)
+ strcpy(fsname, ptr);
+ rc = 0;
+ }
}
- while (fgets(buf, sizeof(buf), fd) != NULL)
- llapi_printf(LLAPI_MSG_NORMAL, buf);
+ endmntent(fp);
- fclose(fd);
- return 0;
+ /* Found it */
+ if (rc == 0) {
+ if ((want & WANT_PATH) && path != NULL)
+ strcpy(path, mntdir);
+ if (want & WANT_FD) {
+ fd = open(mntdir, O_RDONLY | O_DIRECTORY | O_NONBLOCK);
+ if (fd < 0) {
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "error opening '%s'", mntdir);
+
+ } else {
+ *outfd = fd;
+ }
+ }
+ } else if (want & WANT_ERROR)
+ llapi_err_noerrno(LLAPI_MSG_ERROR,
+ "can't find fs root for '%s': %d",
+ (want & WANT_PATH) ? fsname : path, rc);
+ return rc;
}
/*
- * search lustre fsname from pathname
+ * search lustre mounts
*
+ * Calling this function will return to the user the mount point, mntdir, and
+ * the file system name, fsname, if the user passed a buffer to this routine.
+ *
+ * The user inputs are pathname and index. If the pathname is supplied then
+ * the value of the index will be ignored. The pathname will return data if
+ * the pathname is located on a lustre mount. Index is used to pick which
+ * mount point you want in the case of multiple mounted lustre file systems.
+ * See function lfs_osts in lfs.c for a example of the index use.
*/
-static int search_fsname(char *pathname, char *fsname)
+int llapi_search_mounts(const char *pathname, int index, char *mntdir,
+ char *fsname)
{
- char *ptr;
- FILE *fp;
- struct mntent *mnt = NULL;
+ int want = WANT_PATH, idx = -1;
- /* get the mount point */
- fp = setmntent(MOUNTED, "r");
- if (fp == NULL) {
- llapi_err(LLAPI_MSG_ERROR,
- "setmntent(%s) failed: %s:", MOUNTED,
- strerror (errno));
- return -EIO;
- }
- mnt = getmntent(fp);
- while ((feof(fp) == 0) && ferror(fp) == 0) {
- if (llapi_is_lustre_mnt(mnt)) {
- /* search by pathname */
- if (strncmp(mnt->mnt_dir, pathname,
- max(strlen(pathname),
- strlen(mnt->mnt_dir))) == 0) {
- ptr = strchr(mnt->mnt_fsname, '/');
- if (ptr == NULL)
- return -EINVAL;
- ptr++;
- strcpy(fsname, ptr);
- return 0;
+ if (!pathname || pathname[0] == '\0') {
+ want |= WANT_INDEX;
+ idx = index;
+ } else
+ strcpy(mntdir, pathname);
+
+ if (fsname)
+ want |= WANT_FSNAME;
+ return get_root_path(want, fsname, NULL, mntdir, idx);
+}
+
+/* Given a path, find the corresponding Lustre fsname */
+int llapi_search_fsname(const char *pathname, char *fsname)
+{
+ char *path;
+ int rc;
+
+ path = realpath(pathname, NULL);
+ if (path == NULL) {
+ char buf[PATH_MAX + 1], *ptr;
+
+ buf[0] = 0;
+ if (pathname[0] != '/') {
+ /* Need an absolute path, but realpath() only works for
+ * pathnames that actually exist. We go through the
+ * extra hurdle of dirname(getcwd() + pathname) in
+ * case the relative pathname contains ".." in it. */
+ if (getcwd(buf, sizeof(buf) - 1) == NULL)
+ return -errno;
+ strcat(buf, "/");
+ }
+ strncat(buf, pathname, sizeof(buf) - strlen(buf));
+ path = realpath(buf, NULL);
+ if (path == NULL) {
+ ptr = strrchr(buf, '/');
+ if (ptr == NULL)
+ return -ENOENT;
+ *ptr = '\0';
+ path = realpath(buf, NULL);
+ if (path == NULL) {
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "pathname '%s' cannot expand",
+ pathname);
+ return rc;
}
}
- mnt = getmntent(fp);
}
- endmntent(fp);
- return -ENOENT;
+ rc = get_root_path(WANT_FSNAME | WANT_ERROR, fsname, NULL, path, -1);
+ free(path);
+ return rc;
+}
+
+int llapi_getname(const char *path, char *buf, size_t size)
+{
+ struct obd_uuid uuid_buf;
+ char *uuid = uuid_buf.uuid;
+ int rc, nr;
+
+ memset(&uuid_buf, 0, sizeof(uuid_buf));
+ rc = llapi_file_get_lov_uuid(path, &uuid_buf);
+ if (rc)
+ return rc;
+
+ /* We want to turn lustre-clilov-ffff88002738bc00 into
+ * lustre-ffff88002738bc00. */
+
+ nr = snprintf(buf, size, "%.*s-%s",
+ (int) (strlen(uuid) - 24), uuid,
+ uuid + strlen(uuid) - 16);
+
+ if (nr >= size)
+ rc = -ENAMETOOLONG;
+
+ return rc;
}
+
/*
* find the pool directory path under /proc
* (can be also used to test if a fsname is known)
static int poolpath(char *fsname, char *pathname, char *pool_pathname)
{
int rc = 0;
- glob_t glob_info;
char pattern[PATH_MAX + 1];
char buffer[PATH_MAX];
if (fsname == NULL) {
- rc = search_fsname(pathname, buffer);
+ rc = llapi_search_fsname(pathname, buffer);
if (rc != 0)
return rc;
fsname = buffer;
strcpy(pathname, fsname);
}
- snprintf(pattern, PATH_MAX,
- "/proc/fs/lustre/lov/%s-*/pools",
- fsname);
- rc = glob(pattern, GLOB_BRACE, NULL, &glob_info);
+ snprintf(pattern, PATH_MAX, "/proc/fs/lustre/lov/%s-*/pools", fsname);
+ rc = first_match(pattern, buffer);
if (rc)
- return -ENOENT;
-
- if (glob_info.gl_pathc == 0) {
- globfree(&glob_info);
- return -ENOENT;
- }
+ return rc;
/* in fsname test mode, pool_pathname is NULL */
if (pool_pathname != NULL)
- strcpy(pool_pathname, glob_info.gl_pathv[0]);
+ strcpy(pool_pathname, buffer);
return 0;
}
-int llapi_poollist(char *name)
+/**
+ * Get the list of pool members.
+ * \param poolname string of format \<fsname\>.\<poolname\>
+ * \param members caller-allocated array of char*
+ * \param list_size size of the members array
+ * \param buffer caller-allocated buffer for storing OST names
+ * \param buffer_size size of the buffer
+ *
+ * \return number of members retrieved for this pool
+ * \retval -error failure
+ */
+int llapi_get_poolmembers(const char *poolname, char **members,
+ int list_size, char *buffer, int buffer_size)
{
- char *poolname;
- char *fsname;
- char rname[PATH_MAX + 1], pathname[PATH_MAX + 1];
+ char fsname[PATH_MAX + 1];
+ char *pool, *tmp;
+ char pathname[PATH_MAX + 1];
+ char path[PATH_MAX + 1];
+ char buf[1024];
+ FILE *fd;
+ int rc = 0;
+ int nb_entries = 0;
+ int used = 0;
+
+ /* name is FSNAME.POOLNAME */
+ if (strlen(poolname) > PATH_MAX)
+ return -EOVERFLOW;
+ strcpy(fsname, poolname);
+ pool = strchr(fsname, '.');
+ if (pool == NULL)
+ return -EINVAL;
+
+ *pool = '\0';
+ pool++;
+
+ rc = poolpath(fsname, NULL, pathname);
+ if (rc != 0) {
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "Lustre filesystem '%s' not found",
+ fsname);
+ return rc;
+ }
+
+ llapi_printf(LLAPI_MSG_NORMAL, "Pool: %s.%s\n", fsname, pool);
+ sprintf(path, "%s/%s", pathname, pool);
+ fd = fopen(path, "r");
+ if (fd == NULL) {
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc, "Cannot open %s", path);
+ return rc;
+ }
+
+ rc = 0;
+ while (fgets(buf, sizeof(buf), fd) != NULL) {
+ if (nb_entries >= list_size) {
+ rc = -EOVERFLOW;
+ break;
+ }
+ /* remove '\n' */
+ tmp = strchr(buf, '\n');
+ if (tmp != NULL)
+ *tmp='\0';
+ if (used + strlen(buf) + 1 > buffer_size) {
+ rc = -EOVERFLOW;
+ break;
+ }
+
+ strcpy(buffer + used, buf);
+ members[nb_entries] = buffer + used;
+ used += strlen(buf) + 1;
+ nb_entries++;
+ rc = nb_entries;
+ }
+
+ fclose(fd);
+ return rc;
+}
+
+/**
+ * Get the list of pools in a filesystem.
+ * \param name filesystem name or path
+ * \param poollist caller-allocated array of char*
+ * \param list_size size of the poollist array
+ * \param buffer caller-allocated buffer for storing pool names
+ * \param buffer_size size of the buffer
+ *
+ * \return number of pools retrieved for this filesystem
+ * \retval -error failure
+ */
+int llapi_get_poollist(const char *name, char **poollist, int list_size,
+ char *buffer, int buffer_size)
+{
+ char fsname[PATH_MAX + 1], rname[PATH_MAX + 1], pathname[PATH_MAX + 1];
char *ptr;
+ DIR *dir;
+ struct dirent pool;
+ struct dirent *cookie = NULL;
int rc = 0;
+ unsigned int nb_entries = 0;
+ unsigned int used = 0;
+ unsigned int i;
+
+ /* initilize output array */
+ for (i = 0; i < list_size; i++)
+ poollist[i] = NULL;
/* is name a pathname ? */
ptr = strchr(name, '/');
/* only absolute pathname is supported */
if (*name != '/')
return -EINVAL;
+
if (!realpath(name, rname)) {
rc = -errno;
- llapi_err(LLAPI_MSG_ERROR,
- "llapi_poollist: invalid path '%s'",
- name);
+ llapi_error(LLAPI_MSG_ERROR, rc, "invalid path '%s'",
+ name);
return rc;
}
rc = poolpath(NULL, rname, pathname);
if (rc != 0) {
- errno = -rc;
- llapi_err(LLAPI_MSG_ERROR,
- "llapi_poollist: '%s' is not"
- " a Lustre filesystem",
- name);
+ llapi_error(LLAPI_MSG_ERROR, rc, "'%s' is not"
+ " a Lustre filesystem", name);
return rc;
}
- fsname = rname;
- poolname = NULL;
+ strcpy(fsname, rname);
} else {
- /* name is FSNAME[.POOLNAME] */
- fsname = name;
- poolname = strchr(name, '.');
- if (poolname != NULL) {
- *poolname = '\0';
- poolname++;
- }
+ /* name is FSNAME */
+ strcpy(fsname, name);
rc = poolpath(fsname, NULL, pathname);
- if (rc != 0) {
- errno = -rc;
- llapi_err(LLAPI_MSG_ERROR,
- "llapi_poollist: Lustre filesystem '%s'"
- " not found", name);
- return rc;
- }
}
if (rc != 0) {
- errno = -rc;
- llapi_err(LLAPI_MSG_ERROR,
- "llapi_poollist: Lustre filesystem '%s' not found",
- name);
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "Lustre filesystem '%s' not found", name);
return rc;
}
- if (poolname != NULL) {
- rc = print_pool_members(fsname, pathname, poolname);
- poolname--;
- *poolname = '.';
- } else {
- DIR *dir;
- struct dirent *pool;
-
- llapi_printf(LLAPI_MSG_NORMAL, "Pools from %s:\n", fsname);
- if ((dir = opendir(pathname)) == NULL) {
- return -EINVAL;
- }
- while ((pool = readdir(dir)) != NULL) {
- if (!((pool->d_name[0] == '.') &&
- (pool->d_name[1] == '\0')) &&
- !((pool->d_name[0] == '.') &&
- (pool->d_name[1] == '.') &&
- (pool->d_name[2] == '\0')))
- llapi_printf(LLAPI_MSG_NORMAL, " %s.%s\n",
- fsname, pool->d_name);
- }
- closedir(dir);
+ llapi_printf(LLAPI_MSG_NORMAL, "Pools from %s:\n", fsname);
+ dir = opendir(pathname);
+ if (dir == NULL) {
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "Could not open pool list for '%s'",
+ name);
+ return rc;
}
- return rc;
-}
-typedef int (semantic_func_t)(char *path, DIR *parent, DIR *d,
- void *data, cfs_dirent_t *de);
+ while(1) {
+ rc = readdir_r(dir, &pool, &cookie);
+
+ if (rc != 0) {
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "Error reading pool list for '%s'", name);
+ goto out;
+ } else if ((rc == 0) && (cookie == NULL)) {
+ /* end of directory */
+ break;
+ }
+
+ /* ignore . and .. */
+ if (!strcmp(pool.d_name, ".") || !strcmp(pool.d_name, ".."))
+ continue;
+
+ /* check output bounds */
+ if (nb_entries >= list_size) {
+ rc = -EOVERFLOW;
+ goto out;
+ }
+
+ /* +2 for '.' and final '\0' */
+ if (used + strlen(pool.d_name) + strlen(fsname) + 2
+ > buffer_size) {
+ rc = -EOVERFLOW;
+ goto out;
+ }
+
+ sprintf(buffer + used, "%s.%s", fsname, pool.d_name);
+ poollist[nb_entries] = buffer + used;
+ used += strlen(pool.d_name) + strlen(fsname) + 2;
+ nb_entries++;
+ }
+
+out:
+ closedir(dir);
+ return ((rc != 0) ? rc : nb_entries);
+}
+
+/* wrapper for lfs.c and obd.c */
+int llapi_poollist(const char *name)
+{
+ /* list of pool names (assume that pool count is smaller
+ than OST count) */
+ char **list, *buffer = NULL, *path = NULL, *fsname = NULL;
+ int obdcount, bufsize, rc, nb, i;
+ char *poolname = NULL, *tmp = NULL, data[16];
+
+ if (name[0] != '/') {
+ fsname = strdup(name);
+ poolname = strchr(fsname, '.');
+ if (poolname)
+ *poolname = '\0';
+ } else {
+ path = (char *) name;
+ }
+
+ rc = get_param_obdvar(fsname, path, "lov", "numobd",
+ data, sizeof(data));
+ if (rc < 0)
+ goto err;
+ obdcount = atoi(data);
+
+ /* Allocate space for each fsname-OST0000_UUID, 1 per OST,
+ * and also an array to store the pointers for all that
+ * allocated space. */
+retry_get_pools:
+ bufsize = sizeof(struct obd_uuid) * obdcount;
+ buffer = realloc(tmp, bufsize + sizeof(*list) * obdcount);
+ if (buffer == NULL) {
+ rc = -ENOMEM;
+ goto err;
+ }
+ list = (char **) (buffer + bufsize);
+
+ if (!poolname) {
+ /* name is a path or fsname */
+ nb = llapi_get_poollist(name, list, obdcount,
+ buffer, bufsize);
+ } else {
+ /* name is a pool name (<fsname>.<poolname>) */
+ nb = llapi_get_poolmembers(name, list, obdcount,
+ buffer, bufsize);
+ }
+
+ if (nb == -EOVERFLOW) {
+ obdcount *= 2;
+ tmp = buffer;
+ goto retry_get_pools;
+ }
+
+ for (i = 0; i < nb; i++)
+ llapi_printf(LLAPI_MSG_NORMAL, "%s\n", list[i]);
+ rc = (nb < 0 ? nb : 0);
+err:
+ if (buffer)
+ free(buffer);
+ if (fsname)
+ free(fsname);
+ return rc;
+}
+
+typedef int (semantic_func_t)(char *path, DIR *parent, DIR *d,
+ void *data, cfs_dirent_t *de);
-#define MAX_LOV_UUID_COUNT max(LOV_MAX_STRIPE_COUNT, 1000)
#define OBD_NOT_FOUND (-1)
-static int common_param_init(struct find_param *param)
+static int common_param_init(struct find_param *param, char *path)
{
- param->lumlen = lov_mds_md_size(MAX_LOV_UUID_COUNT, LOV_MAGIC_V3);
- if ((param->lmd = malloc(sizeof(lstat_t) + param->lumlen)) == NULL) {
- llapi_err(LLAPI_MSG_ERROR,
- "error: allocation of %d bytes for ioctl",
- sizeof(lstat_t) + param->lumlen);
+ param->lumlen = get_mds_md_size(path);
+ param->lmd = malloc(sizeof(lstat_t) + param->lumlen);
+ if (param->lmd == NULL) {
+ llapi_error(LLAPI_MSG_ERROR, -ENOMEM,
+ "error: allocation of %d bytes for ioctl",
+ sizeof(lstat_t) + param->lumlen);
return -ENOMEM;
}
free(param->lmd);
}
+static int cb_common_fini(char *path, DIR *parent, DIR *d, void *data,
+ cfs_dirent_t *de)
+{
+ struct find_param *param = (struct find_param *)data;
+ param->depth--;
+ return 0;
+}
+
+/* set errno upon failure */
+static DIR *opendir_parent(char *path)
+{
+ DIR *parent;
+ char *fname;
+ char c;
+
+ fname = strrchr(path, '/');
+ if (fname == NULL)
+ return opendir(".");
+
+ c = fname[1];
+ fname[1] = '\0';
+ parent = opendir(path);
+ fname[1] = c;
+ return parent;
+}
+
+static int get_lmd_info(char *path, DIR *parent, DIR *dir,
+ struct lov_user_mds_data *lmd, int lumlen)
+{
+ lstat_t *st = &lmd->lmd_st;
+ int ret = 0;
+
+ if (parent == NULL && dir == NULL)
+ return -EINVAL;
+
+ if (dir) {
+ ret = ioctl(dirfd(dir), LL_IOC_MDC_GETINFO, (void *)lmd);
+ } else if (parent) {
+ char *fname = strrchr(path, '/');
+
+ fname = (fname == NULL ? path : fname + 1);
+ /* retrieve needed file info */
+ strncpy((char *)lmd, fname, lumlen);
+ ret = ioctl(dirfd(parent), IOC_MDC_GETFILEINFO, (void *)lmd);
+ } else {
+ return ret;
+ }
+
+ if (ret) {
+ if (errno == ENOTTY) {
+ /* ioctl is not supported, it is not a lustre fs.
+ * Do the regular lstat(2) instead. */
+ ret = lstat_f(path, st);
+ if (ret) {
+ ret = -errno;
+ llapi_error(LLAPI_MSG_ERROR, ret,
+ "error: %s: lstat failed for %s",
+ __func__, path);
+ }
+ } else if (errno == ENOENT) {
+ ret = -errno;
+ llapi_error(LLAPI_MSG_WARN, ret,
+ "warning: %s: %s does not exist",
+ __func__, path);
+ } else if (errno != EISDIR) {
+ ret = -errno;
+ llapi_error(LLAPI_MSG_ERROR, ret,
+ "%s ioctl failed for %s.",
+ dir ? "LL_IOC_MDC_GETINFO" :
+ "IOC_MDC_GETFILEINFO", path);
+ } else {
+ ret = -errno;
+ llapi_error(LLAPI_MSG_ERROR, ret,
+ "error: %s: IOC_MDC_GETFILEINFO failed for %s",
+ __func__, path);
+ }
+ }
+ return ret;
+}
+
+int llapi_mds_getfileinfo(char *path, DIR *parent,
+ struct lov_user_mds_data *lmd)
+{
+ int lumlen = get_mds_md_size(path);
+
+ return get_lmd_info(path, parent, NULL, lmd, lumlen);
+}
+
+static int llapi_semantic_traverse(char *path, int size, DIR *parent,
+ semantic_func_t sem_init,
+ semantic_func_t sem_fini, void *data,
+ cfs_dirent_t *de)
+{
+ cfs_dirent_t *dent;
+ int len, ret;
+ DIR *d, *p = NULL;
+
+ ret = 0;
+ len = strlen(path);
+
+ d = opendir(path);
+ if (!d && errno != ENOTDIR) {
+ ret = -errno;
+ llapi_error(LLAPI_MSG_ERROR, ret, "%s: Failed to open '%s'",
+ __func__, path);
+ return ret;
+ } else if (!d && !parent) {
+ /* ENOTDIR. Open the parent dir. */
+ p = opendir_parent(path);
+ if (!p)
+ GOTO(out, ret = -errno);
+ }
+
+ if (sem_init && (ret = sem_init(path, parent ?: p, d, data, de)))
+ goto err;
+
+ if (!d)
+ GOTO(out, ret = 0);
+
+ while ((dent = readdir64(d)) != NULL) {
+ ((struct find_param *)data)->have_fileinfo = 0;
+
+ if (!strcmp(dent->d_name, ".") || !strcmp(dent->d_name, ".."))
+ continue;
+
+ /* Don't traverse .lustre directory */
+ if (!(strcmp(dent->d_name, dot_lustre_name)))
+ continue;
+
+ path[len] = 0;
+ if ((len + dent->d_reclen + 2) > size) {
+ llapi_err_noerrno(LLAPI_MSG_ERROR,
+ "error: %s: string buffer is too small",
+ __func__);
+ break;
+ }
+ strcat(path, "/");
+ strcat(path, dent->d_name);
+
+ if (dent->d_type == DT_UNKNOWN) {
+ lstat_t *st = &((struct find_param *)data)->lmd->lmd_st;
+
+ ret = llapi_mds_getfileinfo(path, d,
+ ((struct find_param *)data)->lmd);
+ if (ret == 0) {
+ ((struct find_param *)data)->have_fileinfo = 1;
+ dent->d_type =
+ llapi_filetype_dir_table[st->st_mode &
+ S_IFMT];
+ }
+ if (ret == -ENOENT)
+ continue;
+ }
+
+ switch (dent->d_type) {
+ case DT_UNKNOWN:
+ llapi_err_noerrno(LLAPI_MSG_ERROR,
+ "error: %s: '%s' is UNKNOWN type %d",
+ __func__, dent->d_name, dent->d_type);
+ break;
+ case DT_DIR:
+ ret = llapi_semantic_traverse(path, size, d, sem_init,
+ sem_fini, data, dent);
+ if (ret < 0)
+ goto out;
+ break;
+ default:
+ ret = 0;
+ if (sem_init) {
+ ret = sem_init(path, d, NULL, data, dent);
+ if (ret < 0)
+ goto out;
+ }
+ if (sem_fini && ret == 0)
+ sem_fini(path, d, NULL, data, dent);
+ }
+ }
+
+out:
+ path[len] = 0;
+
+ if (sem_fini)
+ sem_fini(path, parent, d, data, de);
+err:
+ if (d)
+ closedir(d);
+ if (p)
+ closedir(p);
+ return ret;
+}
+
+static int param_callback(char *path, semantic_func_t sem_init,
+ semantic_func_t sem_fini, struct find_param *param)
+{
+ int ret, len = strlen(path);
+ char *buf;
+
+ if (len > PATH_MAX) {
+ ret = -EINVAL;
+ llapi_error(LLAPI_MSG_ERROR, ret,
+ "Path name '%s' is too long", path);
+ return ret;
+ }
+
+ buf = (char *)malloc(PATH_MAX + 1);
+ if (!buf)
+ return -ENOMEM;
+
+ strncpy(buf, path, PATH_MAX + 1);
+ ret = common_param_init(param, buf);
+ if (ret)
+ goto out;
+ param->depth = 0;
+
+ ret = llapi_semantic_traverse(buf, PATH_MAX + 1, NULL, sem_init,
+ sem_fini, param, NULL);
+out:
+ find_param_fini(param);
+ free(buf);
+ return ret < 0 ? ret : 0;
+}
+
int llapi_file_fget_lov_uuid(int fd, struct obd_uuid *lov_name)
{
int rc = ioctl(fd, OBD_IOC_GETNAME, lov_name);
if (rc) {
- rc = errno;
- llapi_err(LLAPI_MSG_ERROR, "error: can't get lov name.");
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc, "error: can't get lov name.");
+ }
+ return rc;
+}
+
+int llapi_file_fget_lmv_uuid(int fd, struct obd_uuid *lov_name)
+{
+ int rc = ioctl(fd, OBD_IOC_GETMDNAME, lov_name);
+ if (rc) {
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc, "error: can't get lmv name.");
}
return rc;
}
fd = open(path, O_RDONLY);
if (fd < 0) {
- rc = errno;
- llapi_err(LLAPI_MSG_ERROR, "error opening %s", path);
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc, "error opening %s", path);
return rc;
}
rc = llapi_file_fget_lov_uuid(fd, lov_uuid);
close(fd);
-
return rc;
}
+enum tgt_type {
+ LOV_TYPE = 1,
+ LMV_TYPE
+};
/*
* If uuidp is NULL, return the number of available obd uuids.
* If uuidp is non-NULL, then it will return the uuids of the obds. If
* there are more OSTs then allocated to uuidp, then an error is returned with
* the ost_count set to number of available obd uuids.
*/
-int llapi_lov_get_uuids(int fd, struct obd_uuid *uuidp, int *ost_count)
+static int llapi_get_target_uuids(int fd, struct obd_uuid *uuidp,
+ int *ost_count, enum tgt_type type)
{
- struct obd_uuid lov_name;
+ struct obd_uuid name;
char buf[1024];
FILE *fp;
int rc = 0, index = 0;
/* Get the lov name */
- rc = llapi_file_fget_lov_uuid(fd, &lov_name);
- if (rc)
- return rc;
+ if (type == LOV_TYPE) {
+ rc = llapi_file_fget_lov_uuid(fd, &name);
+ if (rc)
+ return rc;
+ } else {
+ rc = llapi_file_fget_lmv_uuid(fd, &name);
+ if (rc)
+ return rc;
+ }
/* Now get the ost uuids from /proc */
- snprintf(buf, sizeof(buf), "/proc/fs/lustre/lov/%s/target_obd",
- lov_name.uuid);
+ snprintf(buf, sizeof(buf), "/proc/fs/lustre/%s/%s/target_obd",
+ type == LOV_TYPE ? "lov" : "lmv", name.uuid);
fp = fopen(buf, "r");
if (fp == NULL) {
- rc = errno;
- llapi_err(LLAPI_MSG_ERROR, "error: opening '%s'", buf);
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc, "error: opening '%s'", buf);
return rc;
}
fclose(fp);
- if (uuidp && (index >= *ost_count))
- return -EOVERFLOW;
+ if (uuidp && (index > *ost_count))
+ rc = -EOVERFLOW;
*ost_count = index;
return rc;
}
+int llapi_lov_get_uuids(int fd, struct obd_uuid *uuidp, int *ost_count)
+{
+ return llapi_get_target_uuids(fd, uuidp, ost_count, LOV_TYPE);
+}
+
int llapi_get_obd_count(char *mnt, int *count, int is_mdt)
{
DIR *root;
root = opendir(mnt);
if (!root) {
- llapi_err(LLAPI_MSG_ERROR, "open %s failed", mnt);
- return -1;
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
+ return rc;
}
*count = is_mdt;
rc = ioctl(dirfd(root), LL_IOC_GETOBDCOUNT, count);
+ if (rc < 0)
+ rc = -errno;
closedir(root);
return rc;
}
+/* Check if user specified value matches a real uuid. Ignore _UUID,
+ * -osc-4ba41334, other trailing gunk in comparison.
+ * @param real_uuid ends in "_UUID"
+ * @param search_uuid may or may not end in "_UUID"
+ */
+int llapi_uuid_match(char *real_uuid, char *search_uuid)
+{
+ int cmplen = strlen(real_uuid);
+ int searchlen = strlen(search_uuid);
+
+ if (cmplen > 5 && strcmp(real_uuid + cmplen - 5, "_UUID") == 0)
+ cmplen -= 5;
+ if (searchlen > 5 && strcmp(search_uuid + searchlen - 5, "_UUID") == 0)
+ searchlen -= 5;
+
+ /* The UUIDs may legitimately be different lengths, if
+ * the system was upgraded from an older version. */
+ if (cmplen != searchlen)
+ return 0;
+
+ return (strncmp(search_uuid, real_uuid, cmplen) == 0);
+}
+
/* Here, param->obduuid points to a single obduuid, the index of which is
* returned in param->obdindex */
static int setup_obd_uuid(DIR *dir, char *dname, struct find_param *param)
{
- struct obd_uuid lov_uuid;
+ struct obd_uuid obd_uuid;
char uuid[sizeof(struct obd_uuid)];
char buf[1024];
FILE *fp;
int rc = 0, index;
- /* Get the lov name */
- rc = llapi_file_fget_lov_uuid(dirfd(dir), &lov_uuid);
+ if (param->got_uuids)
+ return rc;
+
+ /* Get the lov/lmv name */
+ if (param->get_lmv)
+ rc = llapi_file_fget_lmv_uuid(dirfd(dir), &obd_uuid);
+ else
+ rc = llapi_file_fget_lov_uuid(dirfd(dir), &obd_uuid);
if (rc) {
- if (errno != ENOTTY) {
- rc = errno;
- llapi_err(LLAPI_MSG_ERROR,
- "error: can't get lov name: %s", dname);
+ if (rc != -ENOTTY) {
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "error: can't get lov name: %s", dname);
} else {
rc = 0;
}
param->got_uuids = 1;
/* Now get the ost uuids from /proc */
- snprintf(buf, sizeof(buf), "/proc/fs/lustre/lov/%s/target_obd",
- lov_uuid.uuid);
+ snprintf(buf, sizeof(buf), "/proc/fs/lustre/%s/%s/target_obd",
+ param->get_lmv ? "lmv" : "lov", obd_uuid.uuid);
fp = fopen(buf, "r");
if (fp == NULL) {
- rc = errno;
- llapi_err(LLAPI_MSG_ERROR, "error: opening '%s'", buf);
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc, "error: opening '%s'", buf);
return rc;
}
if (!param->obduuid && !param->quiet && !param->obds_printed)
- llapi_printf(LLAPI_MSG_NORMAL, "OBDS:\n");
+ llapi_printf(LLAPI_MSG_NORMAL, "%s:\n",
+ param->get_lmv ? "MDTS" : "OBDS:");
while (fgets(buf, sizeof(buf), fp) != NULL) {
if (sscanf(buf, "%d: %s", &index, uuid) < 2)
break;
if (param->obduuid) {
- if (strncmp(param->obduuid->uuid, uuid,
- sizeof(uuid)) == 0) {
+ if (llapi_uuid_match(uuid, param->obduuid->uuid)) {
param->obdindex = index;
break;
}
fclose(fp);
- if (!param->quiet && param->obduuid &&
- (param->obdindex == OBD_NOT_FOUND)) {
+ if (param->obduuid && (param->obdindex == OBD_NOT_FOUND)) {
llapi_err_noerrno(LLAPI_MSG_ERROR,
"error: %s: unknown obduuid: %s",
- __FUNCTION__, param->obduuid->uuid);
- //rc = EINVAL;
+ __func__, param->obduuid->uuid);
+ rc = -EINVAL;
}
return (rc);
/* In this case, param->obduuid will be an array of obduuids and
* obd index for all these obduuids will be returned in
* param->obdindexes */
-static int setup_obd_indexes(DIR *dir, struct find_param *param)
+static int setup_indexes(DIR *dir, char *path, struct obd_uuid *obduuids,
+ int num_obds, int **obdindexes, int *obdindex,
+ enum tgt_type type)
{
+ int ret, obdcount, obd_valid = 0, obdnum, i;
struct obd_uuid *uuids = NULL;
- int obdcount = INIT_ALLOC_NUM_OSTS;
- int ret, obd_valid = 0, obdnum, i;
+ char buf[16];
+ int *indexes;
+
+ ret = get_param_obdvar(NULL, path, type == LOV_TYPE ? "lov" : "lmv",
+ "numobd", buf, sizeof(buf));
+ if (ret)
+ return ret;
- uuids = (struct obd_uuid *)malloc(INIT_ALLOC_NUM_OSTS *
+ obdcount = atoi(buf);
+ uuids = (struct obd_uuid *)malloc(obdcount *
sizeof(struct obd_uuid));
if (uuids == NULL)
return -ENOMEM;
retry_get_uuids:
- ret = llapi_lov_get_uuids(dirfd(dir), uuids,
- &obdcount);
+ ret = llapi_get_target_uuids(dirfd(dir), uuids, &obdcount, type);
if (ret) {
struct obd_uuid *uuids_temp;
if (ret == -EOVERFLOW) {
uuids_temp = realloc(uuids, obdcount *
sizeof(struct obd_uuid));
- if (uuids_temp != NULL)
+ if (uuids_temp != NULL) {
+ uuids = uuids_temp;
goto retry_get_uuids;
+ }
else
ret = -ENOMEM;
}
- llapi_err(LLAPI_MSG_ERROR, "get ost uuid failed");
- return ret;
+ llapi_error(LLAPI_MSG_ERROR, ret, "get ost uuid failed");
+ goto out_free;
}
- param->obdindexes = malloc(param->num_obds * sizeof(param->obdindex));
- if (param->obdindexes == NULL)
- return -ENOMEM;
+ indexes = malloc(num_obds * sizeof(*obdindex));
+ if (indexes == NULL) {
+ ret = -ENOMEM;
+ goto out_free;
+ }
- for (obdnum = 0; obdnum < param->num_obds; obdnum++) {
- for (i = 0; i <= obdcount; i++) {
- if (strcmp((char *)¶m->obduuid[obdnum].uuid,
- (char *)&uuids[i]) == 0) {
- param->obdindexes[obdnum] = i;
- obd_valid++;
- break;
+ for (obdnum = 0; obdnum < num_obds; obdnum++) {
+ char *end = NULL;
+
+ /* The user may have specified a simple index */
+ i = strtol(obduuids[obdnum].uuid, &end, 0);
+ if (end && *end == '\0' && i < obdcount) {
+ indexes[obdnum] = i;
+ obd_valid++;
+ } else {
+ for (i = 0; i < obdcount; i++) {
+ if (llapi_uuid_match(uuids[i].uuid,
+ obduuids[obdnum].uuid)) {
+ indexes[obdnum] = i;
+ obd_valid++;
+ break;
+ }
}
}
- if (i == obdcount)
- param->obdindexes[obdnum] = OBD_NOT_FOUND;
+ if (i >= obdcount) {
+ indexes[obdnum] = OBD_NOT_FOUND;
+ llapi_err_noerrno(LLAPI_MSG_ERROR,
+ "error: %s: unknown obduuid: %s",
+ __func__, obduuids[obdnum].uuid);
+ ret = -EINVAL;
+ }
}
if (obd_valid == 0)
- param->obdindex = OBD_NOT_FOUND;
+ *obdindex = OBD_NOT_FOUND;
else
- param->obdindex = obd_valid;
+ *obdindex = obd_valid;
+
+ *obdindexes = indexes;
+out_free:
+ if (uuids)
+ free(uuids);
+
+ return ret;
+}
+
+static int setup_target_indexes(DIR *dir, char *path, struct find_param *param)
+{
+ int ret = 0;
+ if (param->mdtuuid) {
+ ret = setup_indexes(dir, path, param->mdtuuid, param->num_mdts,
+ ¶m->mdtindexes, ¶m->mdtindex, LMV_TYPE);
+ if (ret)
+ return ret;
+ }
+ if (param->obduuid) {
+ ret = setup_indexes(dir, path, param->obduuid, param->num_obds,
+ ¶m->obdindexes, ¶m->obdindex, LOV_TYPE);
+ if (ret)
+ return ret;
+ }
param->got_uuids = 1;
+ return ret;
+}
+
+int llapi_ostlist(char *path, struct find_param *param)
+{
+ DIR *dir;
+ int ret;
+
+ dir = opendir(path);
+ if (dir == NULL)
+ return -errno;
+
+ ret = setup_obd_uuid(dir, path, param);
+ closedir(dir);
+
+ return ret;
+}
+
+/*
+ * Given a filesystem name, or a pathname of a file on a lustre filesystem,
+ * tries to determine the path to the filesystem's clilov directory under /proc
+ *
+ * fsname is limited to MTI_NAME_MAXLEN in lustre_idl.h
+ * The NUL terminator is compensated by the additional "%s" bytes. */
+#define LOV_LEN (sizeof("/proc/fs/lustre/lov/%s-clilov-*") + MTI_NAME_MAXLEN)
+static int clilovpath(const char *fsname, const char *const pathname,
+ char *clilovpath)
+{
+ int rc;
+ char pattern[LOV_LEN];
+ char buffer[PATH_MAX + 1];
+
+ if (fsname == NULL) {
+ rc = llapi_search_fsname(pathname, buffer);
+ if (rc != 0)
+ return rc;
+ fsname = buffer;
+ }
+
+ snprintf(pattern, sizeof(pattern), "/proc/fs/lustre/lov/%s-clilov-*",
+ fsname);
+
+ rc = first_match(pattern, buffer);
+ if (rc != 0)
+ return rc;
+
+ strncpy(clilovpath, buffer, sizeof(buffer));
return 0;
}
-void lov_dump_user_lmm_v1v3(struct lov_user_md *lum, char *pool_name,
- struct lov_user_ost_data_v1 *objects,
- char *path, int is_dir,
- int obdindex, int quiet, int header, int body)
+/*
+ * Given the path to a stripe attribute proc file, tries to open and
+ * read the attribute and return the value using the attr parameter
+ */
+static int sattr_read_attr(const char *const fpath,
+ unsigned int *attr)
{
- int i, obdstripe = 0;
- if (obdindex != OBD_NOT_FOUND) {
- for (i = 0; !is_dir && i < lum->lmm_stripe_count; i++) {
- if (obdindex == objects[i].l_ost_idx) {
- llapi_printf(LLAPI_MSG_NORMAL, "%s\n", path);
- obdstripe = 1;
- break;
- }
- }
- } else if (!quiet) {
- llapi_printf(LLAPI_MSG_NORMAL, "%s\n", path);
- obdstripe = 1;
+ FILE *f;
+ char line[PATH_MAX + 1];
+ int rc = 0;
+
+ f = fopen(fpath, "r");
+ if (f == NULL) {
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc, "Cannot open '%s'", fpath);
+ return rc;
}
- /* if it's a directory */
- if (is_dir) {
- if (obdstripe == 1) {
- if (lum->lmm_object_gr == LOV_OBJECT_GROUP_DEFAULT) {
- llapi_printf(LLAPI_MSG_NORMAL, "(Default) ");
- lum->lmm_object_gr = LOV_OBJECT_GROUP_CLEAR;
- }
- llapi_printf(LLAPI_MSG_NORMAL,
- "stripe_count: %d stripe_size: %u "
- "stripe_offset: %d%s%s\n",
- lum->lmm_stripe_count == (__u16)-1 ? -1 :
- lum->lmm_stripe_count,
- lum->lmm_stripe_size,
- lum->lmm_stripe_offset == (__u16)-1 ? -1 :
- lum->lmm_stripe_offset,
- pool_name != NULL ? " pool: " : "",
- pool_name != NULL ? pool_name : "");
- }
- return;
+ if (fgets(line, sizeof(line), f) != NULL) {
+ *attr = atoi(line);
+ } else {
+ llapi_error(LLAPI_MSG_ERROR, errno, "Cannot read from '%s'", fpath);
+ rc = 1;
}
- if (header && (obdstripe == 1)) {
+ fclose(f);
+ return rc;
+}
+
+/*
+ * Tries to determine the default stripe attributes for a given filesystem. The
+ * filesystem to check should be specified by fsname, or will be determined
+ * using pathname.
+ */
+static int sattr_get_defaults(const char *const fsname,
+ const char *const pathname,
+ unsigned int *scount,
+ unsigned int *ssize,
+ unsigned int *soffset)
+{
+ int rc;
+ char dpath[PATH_MAX + 1];
+ char fpath[PATH_MAX + 1];
+
+ rc = clilovpath(fsname, pathname, dpath);
+ if (rc != 0)
+ return rc;
+
+ if (scount) {
+ snprintf(fpath, PATH_MAX, "%s/stripecount", dpath);
+ rc = sattr_read_attr(fpath, scount);
+ if (rc != 0)
+ return rc;
+ }
+
+ if (ssize) {
+ snprintf(fpath, PATH_MAX, "%s/stripesize", dpath);
+ rc = sattr_read_attr(fpath, ssize);
+ if (rc != 0)
+ return rc;
+ }
+
+ if (soffset) {
+ snprintf(fpath, PATH_MAX, "%s/stripeoffset", dpath);
+ rc = sattr_read_attr(fpath, soffset);
+ if (rc != 0)
+ return rc;
+ }
+
+ return 0;
+}
+
+/*
+ * Tries to gather the default stripe attributes for a given filesystem. If
+ * the attributes can be determined, they are cached for easy retreival the
+ * next time they are needed. Only a single filesystem's attributes are
+ * cached at a time.
+ */
+static int sattr_cache_get_defaults(const char *const fsname,
+ const char *const pathname,
+ unsigned int *scount,
+ unsigned int *ssize,
+ unsigned int *soffset)
+{
+ static struct {
+ char fsname[PATH_MAX + 1];
+ unsigned int stripecount;
+ unsigned int stripesize;
+ unsigned int stripeoffset;
+ } cache = {
+ .fsname = {'\0'}
+ };
+
+ int rc;
+ char fsname_buf[PATH_MAX + 1];
+ unsigned int tmp[3];
+
+ if (fsname == NULL) {
+ rc = llapi_search_fsname(pathname, fsname_buf);
+ if (rc)
+ return rc;
+ } else {
+ strncpy(fsname_buf, fsname, PATH_MAX);
+ }
+
+ if (strncmp(fsname_buf, cache.fsname, PATH_MAX) != 0) {
+ /*
+ * Ensure all 3 sattrs (count, size, and offset) are
+ * successfully retrieved and stored in tmp before writing to
+ * cache.
+ */
+ rc = sattr_get_defaults(fsname_buf, NULL, &tmp[0], &tmp[1],
+ &tmp[2]);
+ if (rc != 0)
+ return rc;
+
+ cache.stripecount = tmp[0];
+ cache.stripesize = tmp[1];
+ cache.stripeoffset = tmp[2];
+ strncpy(cache.fsname, fsname_buf, PATH_MAX);
+ }
+
+ if (scount)
+ *scount = cache.stripecount;
+ if (ssize)
+ *ssize = cache.stripesize;
+ if (soffset)
+ *soffset = cache.stripeoffset;
+
+ return 0;
+}
+
+static void lov_dump_user_lmm_header(struct lov_user_md *lum, char *path,
+ struct lov_user_ost_data_v1 *objects,
+ int is_dir, int verbose, int depth,
+ int raw, char *pool_name)
+{
+ char *prefix = is_dir ? "" : "lmm_";
+ char nl = is_dir ? ' ' : '\n';
+ int rc;
+
+ if (is_dir && lum->lmm_object_seq == FID_SEQ_LOV_DEFAULT) {
+ lum->lmm_object_seq = FID_SEQ_OST_MDT0;
+ if (verbose & VERBOSE_DETAIL)
+ llapi_printf(LLAPI_MSG_NORMAL, "(Default) ");
+ }
+
+ if (depth && path && ((verbose != VERBOSE_OBJID) || !is_dir))
+ llapi_printf(LLAPI_MSG_NORMAL, "%s\n", path);
+
+ if ((verbose & VERBOSE_DETAIL) && !is_dir) {
llapi_printf(LLAPI_MSG_NORMAL, "lmm_magic: 0x%08X\n",
lum->lmm_magic);
- llapi_printf(LLAPI_MSG_NORMAL, "lmm_object_gr: "LPX64"\n",
- lum->lmm_object_gr);
+ llapi_printf(LLAPI_MSG_NORMAL, "lmm_seq: "LPX64"\n",
+ lum->lmm_object_seq);
llapi_printf(LLAPI_MSG_NORMAL, "lmm_object_id: "LPX64"\n",
lum->lmm_object_id);
- llapi_printf(LLAPI_MSG_NORMAL, "lmm_stripe_count: %u\n",
- (int)lum->lmm_stripe_count);
- llapi_printf(LLAPI_MSG_NORMAL, "lmm_stripe_size: %u\n",
- lum->lmm_stripe_size);
- llapi_printf(LLAPI_MSG_NORMAL, "lmm_stripe_pattern: %x\n",
- lum->lmm_pattern);
- if (pool_name != NULL)
- llapi_printf(LLAPI_MSG_NORMAL,
- "lmm_pool_name: %s\n", pool_name);
}
- if (body) {
- if ((!quiet) && (obdstripe == 1))
- llapi_printf(LLAPI_MSG_NORMAL,
- "\tobdidx\t\t objid\t\tobjid\t\t group\n");
+ if (verbose & VERBOSE_COUNT) {
+ if (verbose & ~VERBOSE_COUNT)
+ llapi_printf(LLAPI_MSG_NORMAL, "%sstripe_count: ",
+ prefix);
+ if (is_dir) {
+ if (!raw && lum->lmm_stripe_count == 0) {
+ unsigned int scount;
+ rc = sattr_cache_get_defaults(NULL, path,
+ &scount, NULL,
+ NULL);
+ if (rc == 0)
+ llapi_printf(LLAPI_MSG_NORMAL, "%d%c",
+ scount, nl);
+ else
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "Cannot determine default"
+ " stripe count.");
+ } else {
+ llapi_printf(LLAPI_MSG_NORMAL, "%d%c",
+ lum->lmm_stripe_count ==
+ (typeof(lum->lmm_stripe_count))(-1)
+ ? -1 : lum->lmm_stripe_count, nl);
+ }
+ } else {
+ llapi_printf(LLAPI_MSG_NORMAL, "%hd%c",
+ (__s16)lum->lmm_stripe_count, nl);
+ }
+ }
- for (i = 0; i < lum->lmm_stripe_count; i++) {
- int idx = objects[i].l_ost_idx;
- long long oid = objects[i].l_object_id;
- long long gr = objects[i].l_object_gr;
- if ((obdindex == OBD_NOT_FOUND) || (obdindex == idx))
- llapi_printf(LLAPI_MSG_NORMAL,
- "\t%6u\t%14llu\t%#13llx\t%14llu%s\n",
- idx, oid, oid, gr,
- obdindex == idx ? " *" : "");
+ if (verbose & VERBOSE_SIZE) {
+ if (verbose & ~VERBOSE_SIZE)
+ llapi_printf(LLAPI_MSG_NORMAL, "%sstripe_size: ",
+ prefix);
+ if (is_dir && !raw && lum->lmm_stripe_size == 0) {
+ unsigned int ssize;
+ rc = sattr_cache_get_defaults(NULL, path, NULL, &ssize,
+ NULL);
+ if (rc == 0)
+ llapi_printf(LLAPI_MSG_NORMAL, "%u%c", ssize,
+ nl);
+ else
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "Cannot determine default"
+ " stripe size.");
+ } else {
+ llapi_printf(LLAPI_MSG_NORMAL, "%u%c",
+ lum->lmm_stripe_size, nl);
}
- llapi_printf(LLAPI_MSG_NORMAL, "\n");
}
+
+ if ((verbose & VERBOSE_DETAIL) && !is_dir) {
+ llapi_printf(LLAPI_MSG_NORMAL, "lmm_stripe_pattern: %x%c",
+ lum->lmm_pattern, nl);
+ }
+
+ if ((verbose & VERBOSE_GENERATION) && !is_dir) {
+ if (verbose & ~VERBOSE_GENERATION)
+ llapi_printf(LLAPI_MSG_NORMAL, "%slayout_gen: ",
+ prefix);
+ llapi_printf(LLAPI_MSG_NORMAL, "%u%c",
+ (int)lum->u.lum_layout_gen, nl);
+ }
+
+ if (verbose & VERBOSE_OFFSET) {
+ if (verbose & ~VERBOSE_OFFSET)
+ llapi_printf(LLAPI_MSG_NORMAL, "%sstripe_offset: ",
+ prefix);
+ if (is_dir)
+ llapi_printf(LLAPI_MSG_NORMAL, "%d%c",
+ lum->lmm_stripe_offset ==
+ (typeof(lum->lmm_stripe_offset))(-1) ? -1 :
+ lum->lmm_stripe_offset, nl);
+ else
+ llapi_printf(LLAPI_MSG_NORMAL, "%u%c",
+ objects[0].l_ost_idx, nl);
+ }
+
+ if ((verbose & VERBOSE_POOL) && (pool_name != NULL)) {
+ if (verbose & ~VERBOSE_POOL)
+ llapi_printf(LLAPI_MSG_NORMAL, "%spool: ",
+ prefix);
+ llapi_printf(LLAPI_MSG_NORMAL, "%s%c", pool_name, nl);
+ }
+
+ if (is_dir && (verbose != VERBOSE_OBJID))
+ llapi_printf(LLAPI_MSG_NORMAL, "\n");
}
-void lov_dump_user_lmm_join(struct lov_user_md_v1 *lum, char *path,
- int is_dir, int obdindex, int quiet,
- int header, int body)
+void lov_dump_user_lmm_v1v3(struct lov_user_md *lum, char *pool_name,
+ struct lov_user_ost_data_v1 *objects,
+ char *path, int is_dir, int obdindex,
+ int depth, int header, int raw)
{
- struct lov_user_md_join *lumj = (struct lov_user_md_join *)lum;
- int i, obdstripe = 0;
+ int i, obdstripe = (obdindex != OBD_NOT_FOUND) ? 0 : 1;
- if (obdindex != OBD_NOT_FOUND) {
- for (i = 0; i < lumj->lmm_stripe_count; i++) {
- if (obdindex == lumj->lmm_objects[i].l_ost_idx) {
- llapi_printf(LLAPI_MSG_NORMAL, "%s\n", path);
+ if (!obdstripe) {
+ for (i = 0; !is_dir && i < lum->lmm_stripe_count; i++) {
+ if (obdindex == objects[i].l_ost_idx) {
obdstripe = 1;
break;
}
}
- } else if (!quiet) {
- llapi_printf(LLAPI_MSG_NORMAL, "%s\n", path);
- obdstripe = 1;
}
- if (header && obdstripe == 1) {
- llapi_printf(LLAPI_MSG_NORMAL, "lmm_magic: 0x%08X\n",
- lumj->lmm_magic);
- llapi_printf(LLAPI_MSG_NORMAL, "lmm_object_gr: "LPX64"\n",
- lumj->lmm_object_gr);
- llapi_printf(LLAPI_MSG_NORMAL, "lmm_object_id: "LPX64"\n",
- lumj->lmm_object_id);
- llapi_printf(LLAPI_MSG_NORMAL, "lmm_stripe_count: %u\n",
- (int)lumj->lmm_stripe_count);
- llapi_printf(LLAPI_MSG_NORMAL, "lmm_stripe_size: %u\n",
- lumj->lmm_stripe_size);
- llapi_printf(LLAPI_MSG_NORMAL, "lmm_stripe_pattern: %x\n",
- lumj->lmm_pattern);
- llapi_printf(LLAPI_MSG_NORMAL, "lmm_extent_count: %x\n",
- lumj->lmm_extent_count);
- }
-
- if (body) {
- unsigned long long start = -1, end = 0;
- if (!quiet && obdstripe == 1)
+ if (obdstripe == 1)
+ lov_dump_user_lmm_header(lum, path, objects, is_dir, header,
+ depth, raw, pool_name);
+
+ if (!is_dir && (header & VERBOSE_OBJID)) {
+ if (obdstripe == 1)
llapi_printf(LLAPI_MSG_NORMAL,
- "joined\tobdidx\t\t objid\t\tobjid\t\t "
- "group\t\tstart\t\tend\n");
- for (i = 0; i < lumj->lmm_stripe_count; i++) {
- int idx = lumj->lmm_objects[i].l_ost_idx;
- long long oid = lumj->lmm_objects[i].l_object_id;
- long long gr = lumj->lmm_objects[i].l_object_gr;
- if (obdindex == OBD_NOT_FOUND || obdindex == idx)
+ "\tobdidx\t\t objid\t\tobjid\t\t group\n");
+
+ for (i = 0; i < lum->lmm_stripe_count; i++) {
+ int idx = objects[i].l_ost_idx;
+ long long oid = objects[i].l_object_id;
+ long long gr = objects[i].l_object_seq;
+ if ((obdindex == OBD_NOT_FOUND) || (obdindex == idx))
llapi_printf(LLAPI_MSG_NORMAL,
- "\t%6u\t%14llu\t%#13llx\t%14llu%s",
- idx, oid, oid, gr,
- obdindex == idx ? " *" : "");
- if (start != lumj->lmm_objects[i].l_extent_start ||
- end != lumj->lmm_objects[i].l_extent_end) {
- start = lumj->lmm_objects[i].l_extent_start;
- llapi_printf(LLAPI_MSG_NORMAL,"\t%14llu",start);
- end = lumj->lmm_objects[i].l_extent_end;
- if (end == (unsigned long long)-1)
- llapi_printf(LLAPI_MSG_NORMAL,
- "\t\tEOF\n");
- else
- llapi_printf(LLAPI_MSG_NORMAL,
- "\t\t%llu\n", end);
- } else {
- llapi_printf(LLAPI_MSG_NORMAL, "\t\t\t\t\n");
- }
+ "\t%6u\t%14llu\t%#13llx\t%14llu%s\n",
+ idx, oid, oid, gr,
+ obdindex == idx ? " *" : "");
}
llapi_printf(LLAPI_MSG_NORMAL, "\n");
}
lov_dump_user_lmm_v1v3(¶m->lmd->lmd_lmm, NULL,
param->lmd->lmd_lmm.lmm_objects,
path, is_dir,
- param->obdindex, param->quiet,
- param->verbose,
- (param->verbose || !param->obduuid));
- break;
- case LOV_USER_MAGIC_JOIN:
- lov_dump_user_lmm_join(¶m->lmd->lmd_lmm, path, is_dir,
- param->obdindex, param->quiet,
- param->verbose,
- (param->verbose || !param->obduuid));
+ param->obdindex, param->maxdepth,
+ param->verbose, param->raw);
break;
case LOV_USER_MAGIC_V3: {
char pool_name[LOV_MAXPOOLNAME + 1];
objects = lmmv3->lmm_objects;
lov_dump_user_lmm_v1v3(¶m->lmd->lmd_lmm, pool_name,
objects, path, is_dir,
- param->obdindex, param->quiet,
- param->verbose,
- (param->verbose || !param->obduuid));
+ param->obdindex, param->maxdepth,
+ param->verbose, param->raw);
break;
}
default:
llapi_printf(LLAPI_MSG_NORMAL, "unknown lmm_magic: %#x "
"(expecting one of %#x %#x %#x)\n",
*(__u32 *)¶m->lmd->lmd_lmm,
- LOV_USER_MAGIC_V1, LOV_USER_MAGIC_JOIN,
- LOV_USER_MAGIC_V3);
+ LOV_USER_MAGIC_V1, LOV_USER_MAGIC_V3);
return;
}
}
if (fname == NULL) {
dname = (char *)malloc(2);
if (dname == NULL)
- return ENOMEM;
+ return -ENOMEM;
strcpy(dname, ".");
fname = (char *)path;
} else {
dname = (char *)malloc(fname - path + 1);
if (dname == NULL)
- return ENOMEM;
+ return -ENOMEM;
strncpy(dname, path, fname - path);
dname[fname - path] = '\0';
fname++;
}
- if ((fd = open(dname, O_RDONLY)) == -1) {
- rc = errno;
+ fd = open(dname, O_RDONLY);
+ if (fd == -1) {
+ rc = -errno;
free(dname);
return rc;
}
strcpy((char *)lum, fname);
if (ioctl(fd, IOC_MDC_GETFILESTRIPE, (void *)lum) == -1)
- rc = errno;
+ rc = -errno;
if (close(fd) == -1 && rc == 0)
- rc = errno;
+ rc = -errno;
free(dname);
-
return rc;
}
rc = obd_ioctl_pack(&data, &buf, sizeof(rawbuf));
if (rc) {
- llapi_err(LLAPI_MSG_ERROR,
- "error: IOC_MDC_LOOKUP pack failed for '%s': rc %d",
- name, rc);
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "error: IOC_MDC_LOOKUP pack failed for '%s': rc %d",
+ name, rc);
return rc;
}
- return ioctl(dirfd, IOC_MDC_LOOKUP, buf);
-}
-
-int llapi_mds_getfileinfo(char *path, DIR *parent,
- struct lov_user_mds_data *lmd)
-{
- lstat_t *st = &lmd->lmd_st;
- char *fname = strrchr(path, '/');
- int ret = 0;
-
- if (parent == NULL)
- return -EINVAL;
-
- fname = (fname == NULL ? path : fname + 1);
- /* retrieve needed file info */
- strncpy((char *)lmd, fname,
- lov_mds_md_size(MAX_LOV_UUID_COUNT, LOV_MAGIC));
- ret = ioctl(dirfd(parent), IOC_MDC_GETFILEINFO, (void *)lmd);
-
- if (ret) {
- if (errno == ENOTTY) {
- /* ioctl is not supported, it is not a lustre fs.
- * Do the regular lstat(2) instead. */
- ret = lstat_f(path, st);
- if (ret) {
- llapi_err(LLAPI_MSG_ERROR,
- "error: %s: lstat failed for %s",
- __FUNCTION__, path);
- return ret;
- }
- } else if (errno == ENOENT) {
- llapi_err(LLAPI_MSG_WARN,
- "warning: %s: %s does not exist",
- __FUNCTION__, path);
- return -ENOENT;
- } else {
- llapi_err(LLAPI_MSG_ERROR,
- "error: %s: IOC_MDC_GETFILEINFO failed for %s",
- __FUNCTION__, path);
- return ret;
- }
- }
-
- return 0;
-}
-
-static DIR *opendir_parent(char *path)
-{
- DIR *parent;
- char *fname;
- char c;
-
- fname = strrchr(path, '/');
- if (fname == NULL)
- return opendir(".");
-
- c = fname[1];
- fname[1] = '\0';
- parent = opendir(path);
- fname[1] = c;
- return parent;
-}
-
-static int llapi_semantic_traverse(char *path, int size, DIR *parent,
- semantic_func_t sem_init,
- semantic_func_t sem_fini, void *data,
- cfs_dirent_t *de)
-{
- cfs_dirent_t *dent;
- int len, ret;
- DIR *d, *p = NULL;
-
- ret = 0;
- len = strlen(path);
-
- d = opendir(path);
- if (!d && errno != ENOTDIR) {
- llapi_err(LLAPI_MSG_ERROR, "%s: Failed to open '%s'",
- __FUNCTION__, path);
- return -EINVAL;
- } else if (!d && !parent) {
- /* ENOTDIR. Open the parent dir. */
- p = opendir_parent(path);
- if (!p)
- GOTO(out, ret = -EINVAL);
- }
-
- if (sem_init && (ret = sem_init(path, parent ?: p, d, data, de)))
- goto err;
-
- if (!d)
- GOTO(out, ret = 0);
-
- while ((dent = readdir64(d)) != NULL) {
- ((struct find_param *)data)->have_fileinfo = 0;
-
- if (!strcmp(dent->d_name, ".") || !strcmp(dent->d_name, ".."))
- continue;
-
- path[len] = 0;
- if ((len + dent->d_reclen + 2) > size) {
- llapi_err(LLAPI_MSG_ERROR,
- "error: %s: string buffer is too small",
- __FUNCTION__);
- break;
- }
- strcat(path, "/");
- strcat(path, dent->d_name);
-
- if (dent->d_type == DT_UNKNOWN) {
- lstat_t *st = &((struct find_param *)data)->lmd->lmd_st;
-
- ret = llapi_mds_getfileinfo(path, d,
- ((struct find_param *)data)->lmd);
- if (ret == 0) {
- ((struct find_param *)data)->have_fileinfo = 1;
- dent->d_type =
- llapi_filetype_dir_table[st->st_mode &
- S_IFMT];
- }
- if (ret == -ENOENT)
- continue;
- }
-
- switch (dent->d_type) {
- case DT_UNKNOWN:
- llapi_err(LLAPI_MSG_ERROR,
- "error: %s: '%s' is UNKNOWN type %d",
- __FUNCTION__, dent->d_name, dent->d_type);
- break;
- case DT_DIR:
- ret = llapi_semantic_traverse(path, size, d, sem_init,
- sem_fini, data, dent);
- if (ret < 0)
- goto out;
- break;
- default:
- ret = 0;
- if (sem_init) {
- ret = sem_init(path, d, NULL, data, dent);
- if (ret < 0)
- goto out;
- }
- if (sem_fini && ret == 0)
- sem_fini(path, d, NULL, data, dent);
- }
- }
-
-out:
- path[len] = 0;
-
- if (sem_fini)
- sem_fini(path, parent, d, data, de);
-err:
- if (d)
- closedir(d);
- if (p)
- closedir(p);
- return ret;
+ rc = ioctl(dirfd, IOC_MDC_LOOKUP, buf);
+ if (rc < 0)
+ rc = -errno;
+ return rc;
}
/* Check if the value matches 1 of the given criteria (e.g. --atime +/-N).
* sign), 1st column is the answer for the MDS value, the 2nd is for the OST:
* --------------------------------------
* 1 | file > limit; sign > 0 | -1 / -1 |
- * 2 | file = limit; sign > 0 | ? / 1 |
+ * 2 | file = limit; sign > 0 | -1 / -1 |
* 3 | file < limit; sign > 0 | ? / 1 |
* 4 | file > limit; sign = 0 | -1 / -1 |
* 5 | file = limit; sign = 0 | ? / 1 | <- (see the Note below)
* --------------------------------------
* Note: 5th actually means that the value is within the interval
* (limit - margin, limit]. */
-static int find_value_cmp(unsigned int file, unsigned int limit, int sign,
- unsigned long long margin, int mds)
+static int find_value_cmp(unsigned long long file, unsigned long long limit,
+ int sign, int negopt, unsigned long long margin,
+ int mds)
{
- if (sign > 0) {
- if (file < limit)
- return mds ? 0 : 1;
- }
+ int ret = -1;
- if (sign == 0) {
- if (file <= limit && file + margin > limit)
- return mds ? 0 : 1;
+ if (sign > 0) {
+ /* Drop the fraction of margin (of days). */
if (file + margin <= limit)
- return mds ? 0 : -1;
- }
-
- if (sign < 0) {
+ ret = mds ? 0 : 1;
+ } else if (sign == 0) {
+ if (file <= limit && file + margin > limit)
+ ret = mds ? 0 : 1;
+ else if (file + margin <= limit)
+ ret = mds ? 0 : -1;
+ } else if (sign < 0) {
if (file > limit)
- return 1;
- if (mds)
- return 0;
+ ret = 1;
+ else if (mds)
+ ret = 0;
}
- return -1;
+ return negopt ? ~ret + 1 : ret;
}
/* Check if the file time matches all the given criteria (e.g. --atime +/-N).
static int find_time_check(lstat_t *st, struct find_param *param, int mds)
{
int ret;
- int rc = 0;
+ int rc = 1;
/* Check if file is accepted. */
if (param->atime) {
ret = find_value_cmp(st->st_atime, param->atime,
- param->asign, 24 * 60 * 60, mds);
+ param->asign, param->exclude_atime,
+ 24 * 60 * 60, mds);
if (ret < 0)
return ret;
rc = ret;
if (param->mtime) {
ret = find_value_cmp(st->st_mtime, param->mtime,
- param->msign, 24 * 60 * 60, mds);
+ param->msign, param->exclude_mtime,
+ 24 * 60 * 60, mds);
if (ret < 0)
return ret;
if (param->ctime) {
ret = find_value_cmp(st->st_ctime, param->ctime,
- param->csign, 24 * 60 * 60, mds);
+ param->csign, param->exclude_ctime,
+ 24 * 60 * 60, mds);
if (ret < 0)
return ret;
return rc;
}
+/**
+ * Check whether the stripes matches the indexes user provided
+ * 1 : matched
+ * 0 : Unmatched
+ */
+static int check_obd_match(struct find_param *param)
+{
+ lstat_t *st = ¶m->lmd->lmd_st;
+ struct lov_user_ost_data_v1 *lmm_objects;
+ int i, j;
+
+ if (param->obduuid && param->obdindex == OBD_NOT_FOUND)
+ return 0;
+
+ if (!S_ISREG(st->st_mode))
+ return 0;
+
+ /* Only those files should be accepted, which have a
+ * stripe on the specified OST. */
+ if (!param->lmd->lmd_lmm.lmm_stripe_count)
+ return 0;
+
+ if (param->lmd->lmd_lmm.lmm_magic ==
+ LOV_USER_MAGIC_V3) {
+ struct lov_user_md_v3 *lmmv3 = (void *)¶m->lmd->lmd_lmm;
+
+ lmm_objects = lmmv3->lmm_objects;
+ } else if (param->lmd->lmd_lmm.lmm_magic == LOV_USER_MAGIC_V1) {
+ lmm_objects = param->lmd->lmd_lmm.lmm_objects;
+ } else {
+ llapi_err_noerrno(LLAPI_MSG_ERROR, "%s:Unknown magic: 0x%08X\n",
+ __func__, param->lmd->lmd_lmm.lmm_magic);
+ return -EINVAL;
+ }
+
+ for (i = 0; i < param->lmd->lmd_lmm.lmm_stripe_count; i++) {
+ for (j = 0; j < param->num_obds; j++) {
+ if (param->obdindexes[j] ==
+ lmm_objects[i].l_ost_idx) {
+ if (param->exclude_obd)
+ return 0;
+ return 1;
+ }
+ }
+ }
+
+ if (param->exclude_obd)
+ return 1;
+ return 0;
+}
+
+static int check_mdt_match(struct find_param *param)
+{
+ int i;
+
+ if (param->mdtuuid && param->mdtindex == OBD_NOT_FOUND)
+ return 0;
+
+ /* FIXME: For striped dir, we should get stripe information and check */
+ for (i = 0; i < param->num_mdts; i++) {
+ if (param->mdtindexes[i] == param->file_mdtindex)
+ if (param->exclude_mdt)
+ return 0;
+ return 1;
+ }
+
+ if (param->exclude_mdt)
+ return 1;
+ return 0;
+}
+
+/**
+ * Check whether the obd is active or not, if it is
+ * not active, just print the object affected by this
+ * failed target
+ **/
+static int print_failed_tgt(struct find_param *param, char *path, int type)
+{
+ struct obd_statfs stat_buf;
+ struct obd_uuid uuid_buf;
+ int ret;
+
+ LASSERT(type == LL_STATFS_LOV || type == LL_STATFS_LMV);
+
+ memset(&stat_buf, 0, sizeof(struct obd_statfs));
+ memset(&uuid_buf, 0, sizeof(struct obd_uuid));
+ ret = llapi_obd_statfs(path, type,
+ param->obdindex, &stat_buf,
+ &uuid_buf);
+ if (ret) {
+ llapi_printf(LLAPI_MSG_NORMAL,
+ "obd_uuid: %s failed %s ",
+ param->obduuid->uuid,
+ strerror(errno));
+ }
+ return ret;
+}
+
static int cb_find_init(char *path, DIR *parent, DIR *dir,
void *data, cfs_dirent_t *de)
{
LASSERT(parent != NULL || dir != NULL);
- param->lmd->lmd_lmm.lmm_stripe_count = 0;
+ if (param->have_fileinfo == 0)
+ param->lmd->lmd_lmm.lmm_stripe_count = 0;
/* If a regular expression is presented, make the initial decision */
if (param->pattern != NULL) {
}
}
+ ret = 0;
- /* If a time or OST should be checked, the decision is not taken yet. */
- if (param->atime || param->ctime || param->mtime || param->obduuid ||
- param->size)
+ /* Request MDS for the stat info if some of these parameters need
+ * to be compared. */
+ if (param->obduuid || param->mdtuuid || param->check_uid ||
+ param->check_gid || param->check_pool || param->atime ||
+ param->ctime || param->mtime || param->check_size ||
+ param->check_stripecount || param->check_stripesize)
decision = 0;
- ret = 0;
- /* Request MDS for the stat info. */
- if (param->have_fileinfo == 0) {
- if (dir) {
- /* retrieve needed file info */
- ret = ioctl(dirfd(dir), LL_IOC_MDC_GETINFO,
- (void *)param->lmd);
- } else {
- char *fname = strrchr(path, '/');
- fname = (fname == NULL ? path : fname + 1);
-
- /* retrieve needed file info */
- strncpy((char *)param->lmd, fname, param->lumlen);
- ret = ioctl(dirfd(parent), IOC_MDC_GETFILEINFO,
- (void *)param->lmd);
- }
- }
+ if (param->type && checked_type == 0)
+ decision = 0;
- if (ret) {
- if (errno == ENOTTY) {
- /* ioctl is not supported, it is not a lustre fs.
- * Do the regular lstat(2) instead. */
- lustre_fs = 0;
- ret = lstat_f(path, st);
- if (ret) {
- llapi_err(LLAPI_MSG_ERROR,
- "error: %s: lstat failed for %s",
- __FUNCTION__, path);
- return ret;
+ if (param->have_fileinfo == 0 && decision == 0) {
+ ret = get_lmd_info(path, parent, dir, param->lmd,
+ param->lumlen);
+ if (ret == 0) {
+ if (dir) {
+ ret = llapi_file_fget_mdtidx(dirfd(dir),
+ ¶m->file_mdtindex);
+ } else {
+ int fd;
+ lstat_t tmp_st;
+
+ ret = lstat_f(path, &tmp_st);
+ if (ret) {
+ ret = -errno;
+ llapi_error(LLAPI_MSG_ERROR, ret,
+ "error: %s: lstat failed"
+ "for %s", __func__, path);
+ return ret;
+ }
+ if (S_ISREG(tmp_st.st_mode)) {
+ fd = open(path, O_RDONLY);
+ if (fd > 0) {
+ ret = llapi_file_fget_mdtidx(fd,
+ ¶m->file_mdtindex);
+ close(fd);
+ } else {
+ ret = fd;
+ }
+ } else {
+ /* For special inode, it assumes to
+ * reside on the same MDT with the
+ * parent */
+ fd = dirfd(parent);
+ ret = llapi_file_fget_mdtidx(fd,
+ ¶m->file_mdtindex);
+ }
}
- } else if (errno == ENOENT) {
- llapi_err(LLAPI_MSG_WARN,
- "warning: %s: %s does not exist",
- __FUNCTION__, path);
- goto decided;
- } else {
- llapi_err(LLAPI_MSG_ERROR,"error: %s: %s failed for %s",
- __FUNCTION__, dir ? "LL_IOC_MDC_GETINFO" :
- "IOC_MDC_GETFILEINFO", path);
+ }
+ if (ret) {
+ if (ret == -ENOTTY)
+ lustre_fs = 0;
+ if (ret == -ENOENT)
+ goto decided;
return ret;
}
}
}
/* Prepare odb. */
- if (param->obduuid) {
+ if (param->obduuid || param->mdtuuid) {
if (lustre_fs && param->got_uuids &&
param->st_dev != st->st_dev) {
/* A lustre/lustre mount point is crossed. */
param->got_uuids = 0;
param->obds_printed = 0;
- param->obdindex = OBD_NOT_FOUND;
+ param->obdindex = param->mdtindex = OBD_NOT_FOUND;
}
if (lustre_fs && !param->got_uuids) {
- ret = setup_obd_indexes(dir ? dir : parent, param);
+ ret = setup_target_indexes(dir ? dir : parent, path,
+ param);
if (ret)
return ret;
} else if (!lustre_fs && param->got_uuids) {
/* A lustre/non-lustre mount point is crossed. */
param->got_uuids = 0;
- param->obdindex = OBD_NOT_FOUND;
+ param->obdindex = param->mdtindex = OBD_NOT_FOUND;
}
}
- /* If an OBD UUID is specified but no one matches, skip this file. */
- if (param->obduuid && param->obdindex == OBD_NOT_FOUND)
- goto decided;
-
- /* If a OST UUID is given, and some OST matches, check it here. */
- if (param->obdindex != OBD_NOT_FOUND) {
- if (!S_ISREG(st->st_mode))
+ if (param->check_stripesize) {
+ decision = find_value_cmp(param->lmd->lmd_lmm.lmm_stripe_size,
+ param->stripesize,
+ param->stripesize_sign,
+ param->exclude_stripesize,
+ param->stripesize_units, 0);
+ if (decision == -1)
goto decided;
+ }
- /* Only those files should be accepted, which have a
- * stripe on the specified OST. */
- if (!param->lmd->lmd_lmm.lmm_stripe_count) {
+ if (param->check_stripecount) {
+ decision = find_value_cmp(param->lmd->lmd_lmm.lmm_stripe_count,
+ param->stripecount,
+ param->stripecount_sign,
+ param->exclude_stripecount, 1, 0);
+ if (decision == -1)
goto decided;
- } else {
- int i, j;
- struct lov_user_ost_data_v1 *lmm_objects;
+ }
- if (param->lmd->lmd_lmm.lmm_magic ==
- LOV_USER_MAGIC_V3) {
- struct lov_user_md_v3 *lmmv3 =
- (void *)¶m->lmd->lmd_lmm;
+ /* If an OBD UUID is specified but none matches, skip this file. */
+ if ((param->obduuid && param->obdindex == OBD_NOT_FOUND) ||
+ (param->mdtuuid && param->mdtindex == OBD_NOT_FOUND))
+ goto decided;
- lmm_objects = lmmv3->lmm_objects;
+ /* If a OST or MDT UUID is given, and some OST matches,
+ * check it here. */
+ if (param->obdindex != OBD_NOT_FOUND ||
+ param->mdtindex != OBD_NOT_FOUND) {
+ if (param->obduuid) {
+ if (check_obd_match(param)) {
+ /* If no mdtuuid is given, we are done.
+ * Otherwise, fall through to the mdtuuid
+ * check below. */
+ if (!param->mdtuuid)
+ goto obd_matches;
} else {
- lmm_objects = param->lmd->lmd_lmm.lmm_objects;
- }
-
- for (i = 0;
- i < param->lmd->lmd_lmm.lmm_stripe_count; i++) {
- for (j = 0; j < param->num_obds; j++) {
- if (param->obdindexes[j] ==
- lmm_objects[i].l_ost_idx)
- goto obd_matches;
- }
- }
-
- if (i == param->lmd->lmd_lmm.lmm_stripe_count)
goto decided;
+ }
+ }
+ if (param->mdtuuid) {
+ if (check_mdt_match(param))
+ goto obd_matches;
+ goto decided;
}
}
-
+obd_matches:
if (param->check_uid) {
if (st->st_uid == param->uid) {
if (param->exclude_uid)
}
/* Check the time on mds. */
- if (!decision) {
+ decision = 1;
+ if (param->atime || param->ctime || param->mtime) {
int for_mds;
for_mds = lustre_fs ? (S_ISREG(st->st_mode) &&
param->lmd->lmd_lmm.lmm_stripe_count)
: 0;
decision = find_time_check(st, param, for_mds);
+ if (decision == -1)
+ goto decided;
}
-obd_matches:
/* If file still fits the request, ask ost for updated info.
The regular stat is almost of the same speed as some new
'glimpse-size-ioctl'. */
- if (!decision && S_ISREG(st->st_mode) &&
- (param->lmd->lmd_lmm.lmm_stripe_count || param->size)) {
- if (param->obdindex != OBD_NOT_FOUND) {
- /* Check whether the obd is active or not, if it is
- * not active, just print the object affected by this
- * failed ost
- * */
- struct obd_statfs stat_buf;
- struct obd_uuid uuid_buf;
-
- memset(&stat_buf, 0, sizeof(struct obd_statfs));
- memset(&uuid_buf, 0, sizeof(struct obd_uuid));
- ret = llapi_obd_statfs(path, LL_STATFS_LOV,
- param->obdindex, &stat_buf,
- &uuid_buf);
- if (ret) {
- if (ret == -ENODATA || ret == -ENODEV
- || ret == -EIO)
- errno = EIO;
- llapi_printf(LLAPI_MSG_NORMAL,
- "obd_uuid: %s failed %s ",
- param->obduuid->uuid,
- strerror(errno));
- goto print_path;
- }
- }
+
+ if (param->check_size && S_ISREG(st->st_mode) &&
+ param->lmd->lmd_lmm.lmm_stripe_count)
+ decision = 0;
+
+ while (!decision) {
+ /* For regular files with the stripe the decision may have not
+ * been taken yet if *time or size is to be checked. */
+ LASSERT((S_ISREG(st->st_mode) &&
+ param->lmd->lmd_lmm.lmm_stripe_count) ||
+ param->mdtindex != OBD_NOT_FOUND);
+
+ if (param->obdindex != OBD_NOT_FOUND)
+ print_failed_tgt(param, path, LL_STATFS_LOV);
+
+ if (param->mdtindex != OBD_NOT_FOUND)
+ print_failed_tgt(param, path, LL_STATFS_LMV);
+
if (dir) {
ret = ioctl(dirfd(dir), IOC_LOV_GETINFO,
(void *)param->lmd);
if (ret) {
if (errno == ENOENT) {
- llapi_err(LLAPI_MSG_ERROR,
- "warning: %s: %s does not exist",
- __FUNCTION__, path);
+ llapi_error(LLAPI_MSG_ERROR, -ENOENT,
+ "warning: %s: %s does not exist",
+ __func__, path);
goto decided;
} else {
- llapi_err(LLAPI_MSG_ERROR,
- "%s: IOC_LOV_GETINFO on %s failed",
- __FUNCTION__, path);
+ ret = -errno;
+ llapi_error(LLAPI_MSG_ERROR, ret,
+ "%s: IOC_LOV_GETINFO on %s failed",
+ __func__, path);
return ret;
}
}
decision = find_time_check(st, param, 0);
if (decision == -1)
goto decided;
+
+ break;
}
- if (param->size)
+ if (param->check_size)
decision = find_value_cmp(st->st_size, param->size,
- param->size_sign, param->size_units,
- 0);
+ param->size_sign, param->exclude_size,
+ param->size_units, 0);
-print_path:
if (decision != -1) {
llapi_printf(LLAPI_MSG_NORMAL, "%s", path);
if (param->zeroend)
return 0;
}
-static int cb_common_fini(char *path, DIR *parent, DIR *d, void *data,
- cfs_dirent_t *de)
+int llapi_find(char *path, struct find_param *param)
{
- struct find_param *param = (struct find_param *)data;
- param->depth--;
+ return param_callback(path, cb_find_init, cb_common_fini, param);
+}
+
+/*
+ * Get MDT number that the file/directory inode referenced
+ * by the open fd resides on.
+ * Return 0 and mdtidx on success, or -ve errno.
+ */
+int llapi_file_fget_mdtidx(int fd, int *mdtidx)
+{
+ if (ioctl(fd, LL_IOC_GET_MDTIDX, mdtidx) < 0)
+ return -errno;
return 0;
}
-int llapi_find(char *path, struct find_param *param)
+static int cb_get_mdt_index(char *path, DIR *parent, DIR *d, void *data,
+ cfs_dirent_t *de)
{
- char *buf;
- int ret, len = strlen(path);
+ struct find_param *param = (struct find_param *)data;
+ int ret = 0;
+ int mdtidx;
- if (len > PATH_MAX) {
- llapi_err(LLAPI_MSG_ERROR, "%s: Path name '%s' is too long",
- __FUNCTION__, path);
- return -EINVAL;
- }
+ LASSERT(parent != NULL || d != NULL);
- buf = (char *)malloc(PATH_MAX + 1);
- if (!buf)
- return -ENOMEM;
+ if (d) {
+ ret = llapi_file_fget_mdtidx(dirfd(d), &mdtidx);
+ } else if (parent) {
+ int fd;
+
+ fd = open(path, O_RDONLY);
+ if (fd > 0) {
+ ret = llapi_file_fget_mdtidx(fd, &mdtidx);
+ close(fd);
+ } else {
+ ret = -errno;
+ }
+ }
- ret = common_param_init(param);
if (ret) {
- free(buf);
+ if (ret == -ENODATA) {
+ if (!param->obduuid)
+ llapi_printf(LLAPI_MSG_NORMAL,
+ "%s has no stripe info\n", path);
+ goto out;
+ } else if (ret == -ENOENT) {
+ llapi_error(LLAPI_MSG_WARN, ret,
+ "warning: %s: %s does not exist",
+ __func__, path);
+ goto out;
+ } else if (ret == -ENOTTY) {
+ llapi_error(LLAPI_MSG_ERROR, ret,
+ "%s: '%s' not on a Lustre fs?",
+ __func__, path);
+ } else {
+ llapi_error(LLAPI_MSG_ERROR, ret,
+ "error: %s: LL_IOC_GET_MDTIDX failed for %s",
+ __func__, path);
+ }
return ret;
}
- param->depth = 0;
+ /* The 'LASSERT(parent != NULL || d != NULL);' guarantees
+ * that either 'd' or 'parent' is not null.
+ * So in all cases llapi_file_fget_mdtidx() is called,
+ * thus initializing 'mdtidx'. */
+ if (param->quiet || !(param->verbose & VERBOSE_DETAIL))
+ /* coverity[uninit_use_in_call] */
+ llapi_printf(LLAPI_MSG_NORMAL, "%d\n", mdtidx);
+ else
+ /* coverity[uninit_use_in_call] */
+ llapi_printf(LLAPI_MSG_NORMAL, "%s\nmdt_index:\t%d\n",
+ path, mdtidx);
- strncpy(buf, path, PATH_MAX + 1);
- ret = llapi_semantic_traverse(buf, PATH_MAX + 1, NULL, cb_find_init,
- cb_common_fini, param, NULL);
+out:
+ /* Do not get down anymore? */
+ if (param->depth == param->maxdepth)
+ return 1;
- find_param_fini(param);
- free(buf);
- return ret < 0 ? ret : 0;
+ param->depth++;
+ return 0;
}
static int cb_getstripe(char *path, DIR *parent, DIR *d, void *data,
LASSERT(parent != NULL || d != NULL);
- /* Prepare odb. */
- if (!param->got_uuids) {
+ if (param->obduuid) {
+ param->quiet = 1;
ret = setup_obd_uuid(d ? d : parent, path, param);
if (ret)
return ret;
fname = (fname == NULL ? path : fname + 1);
strncpy((char *)¶m->lmd->lmd_lmm, fname, param->lumlen);
+
ret = ioctl(dirfd(parent), IOC_MDC_GETFILESTRIPE,
(void *)¶m->lmd->lmd_lmm);
}
if (ret) {
- if (errno == ENODATA) {
- if (!param->obduuid && !param->quiet)
+ if (errno == ENODATA && d != NULL) {
+ /* We need to "fake" the "use the default" values
+ * since the lmm struct is zeroed out at this point.
+ * The magic needs to be set in order to satisfy
+ * a check later on in the code path.
+ * The object_seq needs to be set for the "(Default)"
+ * prefix to be displayed. */
+ struct lov_user_md *lmm = ¶m->lmd->lmd_lmm;
+ lmm->lmm_magic = LOV_MAGIC_V1;
+ if (!param->raw)
+ lmm->lmm_object_seq = FID_SEQ_LOV_DEFAULT;
+ lmm->lmm_stripe_count = 0;
+ lmm->lmm_stripe_size = 0;
+ lmm->lmm_stripe_offset = -1;
+ goto dump;
+
+ } else if (errno == ENODATA && parent != NULL) {
+ if (!param->obduuid)
llapi_printf(LLAPI_MSG_NORMAL,
"%s has no stripe info\n", path);
goto out;
- } else if (errno == ENOTTY) {
- llapi_err(LLAPI_MSG_ERROR,
- "%s: '%s' not on a Lustre fs?",
- __FUNCTION__, path);
} else if (errno == ENOENT) {
- llapi_err(LLAPI_MSG_WARN,
- "warning: %s: %s does not exist",
- __FUNCTION__, path);
+ llapi_error(LLAPI_MSG_WARN, -ENOENT,
+ "warning: %s: %s does not exist",
+ __func__, path);
goto out;
+ } else if (errno == ENOTTY) {
+ ret = -errno;
+ llapi_error(LLAPI_MSG_ERROR, ret,
+ "%s: '%s' not on a Lustre fs?",
+ __func__, path);
} else {
- llapi_err(LLAPI_MSG_ERROR,
- "error: %s: %s failed for %s",
- __FUNCTION__, d ? "LL_IOC_LOV_GETSTRIPE" :
- "IOC_MDC_GETFILESTRIPE", path);
+ ret = -errno;
+ llapi_error(LLAPI_MSG_ERROR, ret,
+ "error: %s: %s failed for %s",
+ __func__, d ? "LL_IOC_LOV_GETSTRIPE" :
+ "IOC_MDC_GETFILESTRIPE", path);
}
return ret;
}
- llapi_lov_dump_user_lmm(param, path, d ? 1 : 0);
+dump:
+ if (!(param->verbose & VERBOSE_MDTINDEX))
+ llapi_lov_dump_user_lmm(param, path, d ? 1 : 0);
+
out:
/* Do not get down anymore? */
if (param->depth == param->maxdepth)
int llapi_getstripe(char *path, struct find_param *param)
{
- char *buf;
- int ret = 0, len = strlen(path);
-
- if (len > PATH_MAX) {
- llapi_err(LLAPI_MSG_ERROR,
- "%s: Path name '%s' is too long",
- __FUNCTION__, path);
- return -EINVAL;
- }
-
- buf = (char *)malloc(PATH_MAX + 1);
- if (!buf)
- return -ENOMEM;
-
- ret = common_param_init(param);
- if (ret) {
- free(buf);
- return ret;
- }
-
- param->depth = 0;
-
- strncpy(buf, path, PATH_MAX + 1);
- ret = llapi_semantic_traverse(buf, PATH_MAX + 1, NULL, cb_getstripe,
- cb_common_fini, param, NULL);
- find_param_fini(param);
- free(buf);
- return ret < 0 ? ret : 0;
+ return param_callback(path, (param->verbose & VERBOSE_MDTINDEX) ?
+ cb_get_mdt_index : cb_getstripe,
+ cb_common_fini, param);
}
int llapi_obd_statfs(char *path, __u32 type, __u32 index,
data.ioc_pbuf2 = (char *)uuid_buf;
data.ioc_plen2 = sizeof(struct obd_uuid);
- if ((rc = obd_ioctl_pack(&data, &rawbuf, sizeof(raw))) != 0) {
- llapi_err(LLAPI_MSG_ERROR,
- "llapi_obd_statfs: error packing ioctl data");
+ rc = obd_ioctl_pack(&data, &rawbuf, sizeof(raw));
+ if (rc != 0) {
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "llapi_obd_statfs: error packing ioctl data");
return rc;
}
if (fd < 0) {
rc = errno ? -errno : -EBADF;
- llapi_err(LLAPI_MSG_ERROR, "error: %s: opening '%s'",
- __FUNCTION__, path);
+ llapi_error(LLAPI_MSG_ERROR, rc, "error: %s: opening '%s'",
+ __func__, path);
return rc;
}
rc = ioctl(fd, IOC_OBD_STATFS, (void *)rawbuf);
}
#define MAX_STRING_SIZE 128
-#define DEVICES_LIST "/proc/fs/lustre/devices"
int llapi_ping(char *obd_type, char *obd_name)
{
fd = open(path, O_WRONLY);
if (fd < 0) {
- rc = errno;
- llapi_err(LLAPI_MSG_ERROR, "error opening %s", path);
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc, "error opening %s", path);
return rc;
}
+ /* The purpose is to send a byte as a ping, whatever this byte is. */
+ /* coverity[uninit_use_in_call] */
rc = write(fd, buf, 1);
+ if (rc < 0)
+ rc = -errno;
close(fd);
if (rc == 1)
return rc;
}
-int llapi_target_iterate(int type_num, char **obd_type,void *args,llapi_cb_t cb)
+int llapi_target_iterate(int type_num, char **obd_type,
+ void *args, llapi_cb_t cb)
{
char buf[MAX_STRING_SIZE];
FILE *fp = fopen(DEVICES_LIST, "r");
int i, rc = 0;
if (fp == NULL) {
- rc = errno;
- llapi_err(LLAPI_MSG_ERROR, "error: opening "DEVICES_LIST);
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc, "error: opening "DEVICES_LIST);
return rc;
}
char *obd_name = NULL;
char *obd_uuid = NULL;
char *bufp = buf;
- struct obd_ioctl_data datal = { 0, };
struct obd_statfs osfs_buffer;
while(bufp[0] == ' ')
memset(&osfs_buffer, 0, sizeof (osfs_buffer));
- datal.ioc_pbuf1 = (char *)&osfs_buffer;
- datal.ioc_plen1 = sizeof(osfs_buffer);
-
for (i = 0; i < type_num; i++) {
if (strcmp(obd_type_name, obd_type[i]) != 0)
continue;
}
}
fclose(fp);
- return rc;
+ return 0;
}
static void do_target_check(char *obd_type_name, char *obd_name,
if (rc == ENOTCONN) {
llapi_printf(LLAPI_MSG_NORMAL, "%s inactive.\n", obd_name);
} else if (rc) {
- llapi_err(LLAPI_MSG_ERROR, "error: check '%s'", obd_name);
+ llapi_error(LLAPI_MSG_ERROR, rc, "error: check '%s'", obd_name);
} else {
llapi_printf(LLAPI_MSG_NORMAL, "%s active.\n", obd_name);
}
#undef MAX_STRING_SIZE
-int llapi_catinfo(char *dir, char *keyword, char *node_name)
-{
- char raw[OBD_MAX_IOCTL_BUFFER];
- char out[LLOG_CHUNK_SIZE];
- char *buf = raw;
- struct obd_ioctl_data data = { 0 };
- char key[30];
- DIR *root;
- int rc;
-
- sprintf(key, "%s", keyword);
- memset(raw, 0, sizeof(raw));
- memset(out, 0, sizeof(out));
- data.ioc_inlbuf1 = key;
- data.ioc_inllen1 = strlen(key) + 1;
- if (node_name) {
- data.ioc_inlbuf2 = node_name;
- data.ioc_inllen2 = strlen(node_name) + 1;
- }
- data.ioc_pbuf1 = out;
- data.ioc_plen1 = sizeof(out);
- rc = obd_ioctl_pack(&data, &buf, sizeof(raw));
- if (rc)
- return rc;
-
- root = opendir(dir);
- if (root == NULL) {
- rc = errno;
- llapi_err(LLAPI_MSG_ERROR, "open %s failed", dir);
- return rc;
- }
-
- rc = ioctl(dirfd(root), OBD_IOC_LLOG_CATINFO, buf);
- if (rc)
- llapi_err(LLAPI_MSG_ERROR, "ioctl OBD_IOC_CATINFO failed");
- else
- llapi_printf(LLAPI_MSG_NORMAL, "%s", data.ioc_pbuf1);
-
- closedir(root);
- return rc;
-}
-
/* Is this a lustre fs? */
int llapi_is_lustre_mnttype(const char *type)
{
root = opendir(mnt);
if (!root) {
- llapi_err(LLAPI_MSG_ERROR, "open %s failed", mnt);
- return -1;
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
+ return rc;
}
rc = ioctl(dirfd(root), LL_IOC_QUOTACHECK, check_type);
+ if (rc < 0)
+ rc = -errno;
closedir(root);
return rc;
root = opendir(mnt);
if (!root) {
- llapi_err(LLAPI_MSG_ERROR, "open %s failed", mnt);
- return -1;
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
+ return rc;
}
while (1) {
}
closedir(root);
- return rc;
+ return 0;
}
int llapi_quotactl(char *mnt, struct if_quotactl *qctl)
root = opendir(mnt);
if (!root) {
- llapi_err(LLAPI_MSG_ERROR, "open %s failed", mnt);
- return -1;
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
+ return rc;
}
rc = ioctl(dirfd(root), LL_IOC_QUOTACTL, qctl);
+ if (rc < 0)
+ rc = -errno;
closedir(root);
return rc;
LASSERT(parent != NULL || d != NULL);
- if (d) {
- rc = ioctl(dirfd(d), LL_IOC_MDC_GETINFO,
- (void *)param->lmd);
- } else if (parent) {
- char *fname = strrchr(path, '/');
- fname = (fname == NULL ? path : fname + 1);
-
- strncpy((char *)param->lmd, fname, param->lumlen);
- rc = ioctl(dirfd(parent), IOC_MDC_GETFILEINFO,
- (void *)param->lmd);
- } else {
- return 0;
- }
-
+ rc = get_lmd_info(path, parent, d, param->lmd, param->lumlen);
if (rc) {
- if (errno == ENODATA) {
+ if (rc == -ENODATA) {
if (!param->obduuid && !param->quiet)
- llapi_err(LLAPI_MSG_ERROR,
+ llapi_error(LLAPI_MSG_ERROR, -ENODATA,
"%s has no stripe info", path);
rc = 0;
- } else if (errno == ENOENT) {
- llapi_err(LLAPI_MSG_ERROR,
- "warning: %s: %s does not exist",
- __FUNCTION__, path);
+ } else if (rc == -ENOENT) {
rc = 0;
- } else if (errno != EISDIR) {
- rc = errno;
- llapi_err(LLAPI_MSG_ERROR, "%s ioctl failed for %s.",
- d ? "LL_IOC_MDC_GETINFO" :
- "IOC_MDC_GETFILEINFO", path);
}
return rc;
}
* invoke syscall directly. */
rc = syscall(SYS_chown, path, -1, -1);
if (rc)
- llapi_err(LLAPI_MSG_ERROR,"error: chown %s (%u,%u)", path);
+ llapi_error(LLAPI_MSG_ERROR, errno,
+ "error: chown %s", path);
rc = chmod(path, st->st_mode);
- if (rc)
- llapi_err(LLAPI_MSG_ERROR, "error: chmod %s (%hu)",
- path, st->st_mode);
+ if (rc) {
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc, "error: chmod %s (%hu)",
+ path, st->st_mode);
+ }
return rc;
}
-int llapi_quotachown(char *path, int flag)
-{
- struct find_param param;
- char *buf;
- int ret = 0, len = strlen(path);
-
- if (len > PATH_MAX) {
- llapi_err(LLAPI_MSG_ERROR, "%s: Path name '%s' is too long",
- __FUNCTION__, path);
- return -EINVAL;
- }
-
- buf = (char *)malloc(PATH_MAX + 1);
- if (!buf)
- return -ENOMEM;
-
+int llapi_quotachown(char *path, int flag)
+{
+ struct find_param param;
+
memset(¶m, 0, sizeof(param));
param.recursive = 1;
param.verbose = 0;
param.quiet = 1;
- ret = common_param_init(¶m);
- if (ret)
- goto out;
-
- strncpy(buf, path, PATH_MAX + 1);
- ret = llapi_semantic_traverse(buf, PATH_MAX + 1, NULL, cb_quotachown,
- NULL, ¶m, NULL);
-out:
- find_param_fini(¶m);
- free(buf);
- return ret;
+ return param_callback(path, cb_quotachown, NULL, ¶m);
}
#include <pwd.h>
{
FILE *fp;
struct mntent *mnt;
- int found = 0, fd, rc;
+ int found = 0, fd = 0, rc = 0;
fp = setmntent(MOUNTED, "r");
if (fp == NULL) {
- perror("setmntent");
- return -1;
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "error setmntent(%s)", MOUNTED);
+ return rc;
}
while (1) {
if (!mnt)
break;
- if (!llapi_is_lustre_mnt(mnt))
+ if (!llapi_is_lustre_mnt(mnt))
continue;
fd = open(mnt->mnt_dir, O_RDONLY | O_DIRECTORY);
if (fd < 0) {
- perror("open");
- return -1;
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "Can't open '%s'\n", mnt->mnt_dir);
+ goto out;
}
rc = ioctl(fd, LL_IOC_RMTACL, ops);
if (rc < 0) {
- perror("ioctl");
- return -1;
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc, "ioctl %d\n", fd);
+ goto out;
}
found++;
}
+
+out:
endmntent(fp);
- return found;
+ if (fd >= 0)
+ close(fd);
+ return ((rc != 0) ? rc : found);
}
static char *next_token(char *p, int div)
if (is_user) {
struct passwd *pw;
- if ((pw = getpwnam(name)) == NULL)
+ pw = getpwnam(name);
+ if (pw == NULL)
return INVALID_ID;
else
return (int)(pw->pw_uid);
} else {
struct group *gr;
- if ((gr = getgrnam(name)) == NULL)
+ gr = getgrnam(name);
+ if (gr == NULL)
return INVALID_ID;
else
return (int)(gr->gr_gid);
static int do_rmtacl(int argc, char *argv[], int ops, int (output_func)(char *))
{
pid_t pid = 0;
- int fd[2], status;
+ int fd[2], status, rc;
FILE *fp;
char buf[PIPE_BUF];
if (output_func) {
if (pipe(fd) < 0) {
- perror("pipe");
- return -1;
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc, "Can't create pipe\n");
+ return rc;
}
- if ((pid = fork()) < 0) {
- perror("fork");
+ pid = fork();
+ if (pid < 0) {
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc, "Can't fork\n");
close(fd[0]);
close(fd[1]);
- return -1;
+ return rc;
} else if (!pid) {
/* child process redirects its output. */
close(fd[0]);
close(1);
if (dup2(fd[1], 1) < 0) {
- perror("dup2");
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "Can't dup2 %d\n", fd[1]);
close(fd[1]);
- return -1;
+ return rc;
}
} else {
close(fd[1]);
if (!pid) {
status = rmtacl_notify(ops);
if (status < 0)
- return -1;
+ return -errno;
exit(execvp(argv[0], argv));
}
/* the following is parent process */
- if ((fp = fdopen(fd[0], "r")) == NULL) {
- perror("fdopen");
+ fp = fdopen(fd[0], "r");
+ if (fp == NULL) {
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc, "fdopen %d failed\n", fd[0]);
kill(pid, SIGKILL);
close(fd[0]);
- return -1;
+ return rc;
}
while (fgets(buf, PIPE_BUF, fp) != NULL) {
close(fd[0]);
if (waitpid(pid, &status, 0) < 0) {
- perror("waitpid");
- return -1;
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc, "waitpid %d failed\n", pid);
+ return rc;
}
return child_status(status);
rc = rmtacl_notify(RMT_RSETFACL);
if (rc < 0)
- return -1;
+ return rc;
exit(execvp(argv[0], argv));
}
rc = rmtacl_notify(RMT_LGETFACL);
if (rc < 0)
- return -1;
+ return rc;
exit(execvp(argv[0], argv));
}
-/* format must have %s%s, buf must be > 16 */
-static int get_mdtname(const char *name, char *format, char *buf)
+/* Print mdtname 'name' into 'buf' using 'format'. Add -MDT0000 if needed.
+ * format must have %s%s, buf must be > 16
+ * Eg: if name = "lustre-MDT0000", "lustre", or "lustre-MDT0000_UUID"
+ * then buf = "lustre-MDT0000"
+ */
+static int get_mdtname(char *name, char *format, char *buf)
{
char suffix[]="-MDT0000";
int len = strlen(name);
- if (len > 16) {
- llapi_err(LLAPI_MSG_ERROR, "bad MDT name |%s|\n", name);
- return -EINVAL;
+ if ((len > 5) && (strncmp(name + len - 5, "_UUID", 5) == 0)) {
+ name[len - 5] = '\0';
+ len -= 5;
}
- if ((len > 8) && (strncmp(name + len - 8, "-MDT", 4) == 0))
- suffix[0] = '\0';
+ if (len > 8) {
+ if ((len <= 16) && strncmp(name + len - 8, "-MDT", 4) == 0) {
+ suffix[0] = '\0';
+ } else {
+ /* Not enough room to add suffix */
+ llapi_err_noerrno(LLAPI_MSG_ERROR,
+ "MDT name too long |%s|", name);
+ return -EINVAL;
+ }
+ }
return sprintf(buf, format, name, suffix);
}
-#define CHANGELOG_FILE "/proc/fs/lustre/mdd/%s%s/changelog"
+/** ioctl on filsystem root, with mdtindex sent as data
+ * \param mdtname path, fsname, or mdtname (lutre-MDT0004)
+ * \param mdtidxp pointer to integer within data to be filled in with the
+ * mdt index (0 if no mdt is specified). NULL won't be filled.
+ */
+static int root_ioctl(const char *mdtname, int opc, void *data, int *mdtidxp,
+ int want_error)
+{
+ char fsname[20];
+ char *ptr;
+ int fd, index, rc;
+
+ /* Take path, fsname, or MDTname. Assume MDT0000 in the former cases.
+ Open root and parse mdt index. */
+ if (mdtname[0] == '/') {
+ index = 0;
+ rc = get_root_path(WANT_FD | want_error, NULL, &fd,
+ (char *)mdtname, -1);
+ } else {
+ if (get_mdtname((char *)mdtname, "%s%s", fsname) < 0)
+ return -EINVAL;
+ ptr = fsname + strlen(fsname) - 8;
+ *ptr = '\0';
+ index = strtol(ptr + 4, NULL, 10);
+ rc = get_root_path(WANT_FD | want_error, fsname, &fd, NULL, -1);
+ }
+ if (rc < 0) {
+ if (want_error)
+ llapi_err_noerrno(LLAPI_MSG_ERROR,
+ "Can't open %s: %d\n", mdtname, rc);
+ return rc;
+ }
+
+ if (mdtidxp)
+ *mdtidxp = index;
+
+ rc = ioctl(fd, opc, data);
+ if (rc == -1)
+ rc = -errno;
+ else
+ rc = 0;
+ if (rc && want_error)
+ llapi_error(LLAPI_MSG_ERROR, rc, "ioctl %d err %d", opc, rc);
+
+ close(fd);
+ return rc;
+}
+
+/****** Changelog API ********/
-/* return a file desc to readable changelog */
-int llapi_changelog_open(const char *mdtname, long long startrec)
+static int changelog_ioctl(const char *mdtname, int opc, int id,
+ long long recno, int flags)
{
- char path[256];
- int rc, fd;
+ struct ioc_changelog data;
+ int *idx;
- if (get_mdtname(mdtname, CHANGELOG_FILE, path) <0)
- return -EINVAL;
+ data.icc_id = id;
+ data.icc_recno = recno;
+ data.icc_flags = flags;
+ idx = (int *)(&data.icc_mdtindex);
- if ((fd = open(path, O_RDONLY)) < 0) {
- llapi_err(LLAPI_MSG_ERROR, "error: can't open |%s|\n", path);
- return -errno;
- }
+ return root_ioctl(mdtname, opc, &data, idx, WANT_ERROR);
+}
+
+#define CHANGELOG_PRIV_MAGIC 0xCA8E1080
+struct changelog_private {
+ int magic;
+ int flags;
+ lustre_kernelcomm kuc;
+};
+
+/** Start reading from a changelog
+ * @param priv Opaque private control structure
+ * @param flags Start flags (e.g. CHANGELOG_FLAG_BLOCK)
+ * @param device Report changes recorded on this MDT
+ * @param startrec Report changes beginning with this record number
+ * (just call llapi_changelog_fini when done; don't need an endrec)
+ */
+int llapi_changelog_start(void **priv, int flags, const char *device,
+ long long startrec)
+{
+ struct changelog_private *cp;
+ int rc;
+
+ /* Set up the receiver control struct */
+ cp = calloc(1, sizeof(*cp));
+ if (cp == NULL)
+ return -ENOMEM;
+
+ cp->magic = CHANGELOG_PRIV_MAGIC;
+ cp->flags = flags;
- rc = lseek(fd, (off_t)startrec, SEEK_SET);
+ /* Set up the receiver */
+ rc = libcfs_ukuc_start(&cp->kuc, 0 /* no group registration */);
+ if (rc < 0)
+ goto out_free;
+
+ *priv = cp;
+
+ /* Tell the kernel to start sending */
+ rc = changelog_ioctl(device, OBD_IOC_CHANGELOG_SEND, cp->kuc.lk_wfd,
+ startrec, flags);
+ /* Only the kernel reference keeps the write side open */
+ close(cp->kuc.lk_wfd);
+ cp->kuc.lk_wfd = 0;
if (rc < 0) {
- llapi_err(LLAPI_MSG_ERROR, "can't seek rc=%d\n", rc);
- return -errno;
+ /* frees and clears priv */
+ llapi_changelog_fini(priv);
+ return rc;
}
- return fd;
+ return 0;
+
+out_free:
+ free(cp);
+ return rc;
}
-int llapi_changelog_clear(const char *mdtname, long long endrec)
+/** Finish reading from a changelog */
+int llapi_changelog_fini(void **priv)
{
- char path[256];
- char val[20];
- int fd, len;
+ struct changelog_private *cp = (struct changelog_private *)*priv;
- if (endrec < 0) {
- llapi_err(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO,
- "can't purge negative records\n");
+ if (!cp || (cp->magic != CHANGELOG_PRIV_MAGIC))
return -EINVAL;
- }
- if (get_mdtname(mdtname, CHANGELOG_FILE, path) <0)
+ libcfs_ukuc_stop(&cp->kuc);
+ free(cp);
+ *priv = NULL;
+ return 0;
+}
+
+/** Convert a changelog_rec to changelog_ext_rec, in this way client can treat
+ * all records in the format of changelog_ext_rec, this can make record
+ * analysis simpler.
+ */
+static inline int changelog_extend_rec(struct changelog_ext_rec *ext)
+{
+ if (!CHANGELOG_REC_EXTENDED(ext)) {
+ struct changelog_rec *rec = (struct changelog_rec *)ext;
+
+ memmove(ext->cr_name, rec->cr_name, rec->cr_namelen);
+ fid_zero(&ext->cr_sfid);
+ fid_zero(&ext->cr_spfid);
+ return 1;
+ }
+
+ return 0;
+}
+
+/** Read the next changelog entry
+ * @param priv Opaque private control structure
+ * @param rech Changelog record handle; record will be allocated here
+ * @return 0 valid message received; rec is set
+ * <0 error code
+ * 1 EOF
+ */
+int llapi_changelog_recv(void *priv, struct changelog_ext_rec **rech)
+{
+ struct changelog_private *cp = (struct changelog_private *)priv;
+ struct kuc_hdr *kuch;
+ int rc = 0;
+
+ if (!cp || (cp->magic != CHANGELOG_PRIV_MAGIC))
return -EINVAL;
+ if (rech == NULL)
+ return -EINVAL;
+ kuch = malloc(CR_MAXSIZE + sizeof(*kuch));
+ if (kuch == NULL)
+ return -ENOMEM;
+
+repeat:
+ rc = libcfs_ukuc_msg_get(&cp->kuc, (char *)kuch,
+ CR_MAXSIZE + sizeof(*kuch),
+ KUC_TRANSPORT_CHANGELOG);
+ if (rc < 0)
+ goto out_free;
- if ((fd = open(path, O_WRONLY)) < 0) {
- llapi_err(LLAPI_MSG_ERROR, "error: can't open |%s|\n", path);
- return errno;
+ if ((kuch->kuc_transport != KUC_TRANSPORT_CHANGELOG) ||
+ ((kuch->kuc_msgtype != CL_RECORD) &&
+ (kuch->kuc_msgtype != CL_EOF))) {
+ llapi_err_noerrno(LLAPI_MSG_ERROR,
+ "Unknown changelog message type %d:%d\n",
+ kuch->kuc_transport, kuch->kuc_msgtype);
+ rc = -EPROTO;
+ goto out_free;
}
- snprintf(val, sizeof(val), "%llu", endrec);
- len = write(fd, val, strlen(val));
- close(fd);
- if (len != strlen(val)) {
- llapi_err(LLAPI_MSG_ERROR, "purge err\n");
- return errno;
+ if (kuch->kuc_msgtype == CL_EOF) {
+ if (cp->flags & CHANGELOG_FLAG_FOLLOW) {
+ /* Ignore EOFs */
+ goto repeat;
+ } else {
+ rc = 1;
+ goto out_free;
+ }
}
+ /* Our message is a changelog_ext_rec. Use pointer math to skip
+ * kuch_hdr and point directly to the message payload.
+ */
+ *rech = (struct changelog_ext_rec *)(kuch + 1);
+ changelog_extend_rec(*rech);
+
+ return 0;
+
+out_free:
+ *rech = NULL;
+ free(kuch);
+ return rc;
+}
+
+/** Release the changelog record when done with it. */
+int llapi_changelog_free(struct changelog_ext_rec **rech)
+{
+ if (*rech) {
+ /* We allocated memory starting at the kuc_hdr, but passed
+ * the consumer a pointer to the payload.
+ * Use pointer math to get back to the header.
+ */
+ struct kuc_hdr *kuch = (struct kuc_hdr *)*rech - 1;
+ free(kuch);
+ }
+ *rech = NULL;
return 0;
}
-static int dev_ioctl(struct obd_ioctl_data *data, int dev, int cmd)
+int llapi_changelog_clear(const char *mdtname, const char *idstr,
+ long long endrec)
+{
+ int id;
+
+ if (endrec < 0) {
+ llapi_err_noerrno(LLAPI_MSG_ERROR,
+ "can't purge negative records\n");
+ return -EINVAL;
+ }
+
+ id = strtol(idstr + strlen(CHANGELOG_USER_PREFIX), NULL, 10);
+ if ((id == 0) || (strncmp(idstr, CHANGELOG_USER_PREFIX,
+ strlen(CHANGELOG_USER_PREFIX)) != 0)) {
+ llapi_err_noerrno(LLAPI_MSG_ERROR,
+ "expecting id of the form '"
+ CHANGELOG_USER_PREFIX
+ "<num>'; got '%s'\n", idstr);
+ return -EINVAL;
+ }
+
+ return changelog_ioctl(mdtname, OBD_IOC_CHANGELOG_CLEAR, id, endrec, 0);
+}
+
+int llapi_fid2path(const char *device, const char *fidstr, char *buf,
+ int buflen, long long *recno, int *linkno)
{
+ struct lu_fid fid;
+ struct getinfo_fid2path *gf;
int rc;
- static char rawbuf[8192];
- static char *buf = rawbuf;
- data->ioc_dev = dev;
- memset(buf, 0, sizeof(rawbuf));
+ while (*fidstr == '[')
+ fidstr++;
- if ((rc = obd_ioctl_pack(data, &buf, sizeof(rawbuf)))) {
- llapi_err(LLAPI_MSG_ERROR,
- "error: ioctl pack (%d) failed: rc %d", cmd, rc);
- return rc;
+ sscanf(fidstr, SFID, RFID(&fid));
+ if (!fid_is_sane(&fid)) {
+ llapi_err_noerrno(LLAPI_MSG_ERROR,
+ "bad FID format [%s], should be "DFID"\n",
+ fidstr, (__u64)1, 2, 0);
+ return -EINVAL;
}
- rc = l_ioctl(OBD_DEV_ID, cmd, buf);
- if (rc < 0) {
- /* ioctl returns -1 with errno set */
- rc = -errno;
- return rc;
+ gf = malloc(sizeof(*gf) + buflen);
+ if (gf == NULL)
+ return -ENOMEM;
+ gf->gf_fid = fid;
+ gf->gf_recno = *recno;
+ gf->gf_linkno = *linkno;
+ gf->gf_pathlen = buflen;
+
+ /* Take path or fsname */
+ rc = root_ioctl(device, OBD_IOC_FID2PATH, gf, NULL, 0);
+ if (rc) {
+ if (rc != -ENOENT)
+ llapi_error(LLAPI_MSG_ERROR, rc, "ioctl err %d", rc);
+ } else {
+ memcpy(buf, gf->gf_path, gf->gf_pathlen);
+ *recno = gf->gf_recno;
+ *linkno = gf->gf_linkno;
}
- if (obd_ioctl_unpack(data, buf, sizeof(rawbuf))) {
- llapi_err(LLAPI_MSG_ERROR,
- "error: invalid reply\n");
- return -EPROTO;
+ free(gf);
+ return rc;
+}
+
+static int path2fid_from_lma(const char *path, lustre_fid *fid)
+{
+ char buf[512];
+ struct lustre_mdt_attrs *lma;
+ int rc;
+
+ rc = lgetxattr(path, XATTR_NAME_LMA, buf, sizeof(buf));
+ if (rc < 0)
+ return -errno;
+ lma = (struct lustre_mdt_attrs *)buf;
+ fid_le_to_cpu(fid, &lma->lma_self_fid);
+ return 0;
+}
+
+int llapi_path2fid(const char *path, lustre_fid *fid)
+{
+ int fd, rc;
+
+ memset(fid, 0, sizeof(*fid));
+ fd = open(path, O_RDONLY | O_NONBLOCK | O_NOFOLLOW);
+ if (fd < 0) {
+ if (errno == ELOOP || errno == ENXIO)
+ return path2fid_from_lma(path, fid);
+ return -errno;
}
+
+ rc = ioctl(fd, LL_IOC_PATH2FID, fid) < 0 ? -errno : 0;
+ if (rc == -EINVAL || rc == -ENOTTY)
+ rc = path2fid_from_lma(path, fid);
+
+ close(fd);
return rc;
}
-/* should we just grep it from proc? */
-static int dev_name2dev(char *name)
+/****** HSM Copytool API ********/
+#define CT_PRIV_MAGIC 0xC0BE2001
+struct copytool_private {
+ int magic;
+ char *fsname;
+ lustre_kernelcomm kuc;
+ __u32 archives;
+};
+
+#include <libcfs/libcfs.h>
+
+/** Register a copytool
+ * @param[out] priv Opaque private control structure
+ * @param fsname Lustre filesystem
+ * @param flags Open flags, currently unused (e.g. O_NONBLOCK)
+ * @param archive_count
+ * @param archives Which archive numbers this copytool is responsible for
+ */
+int llapi_copytool_start(void **priv, char *fsname, int flags,
+ int archive_count, int *archives)
{
- struct obd_ioctl_data data;
+ struct copytool_private *ct;
int rc;
- memset(&data, 0, sizeof(data));
- data.ioc_inllen1 = strlen(name) + 1;
- data.ioc_inlbuf1 = name;
- rc = dev_ioctl(&data, -1, OBD_IOC_NAME2DEV);
+ if (archive_count > 0 && archives == NULL) {
+ llapi_err_noerrno(LLAPI_MSG_ERROR,
+ "NULL archive numbers");
+ return -EINVAL;
+ }
- if (rc < 0) {
- llapi_err(LLAPI_MSG_ERROR, "Device %s not found %d\n", name,rc);
- return rc;
+ ct = calloc(1, sizeof(*ct));
+ if (ct == NULL)
+ return -ENOMEM;
+
+ ct->fsname = malloc(strlen(fsname) + 1);
+ if (ct->fsname == NULL) {
+ rc = -ENOMEM;
+ goto out_err;
+ }
+ strcpy(ct->fsname, fsname);
+ ct->magic = CT_PRIV_MAGIC;
+ ct->archives = 0;
+ for (rc = 0; rc < archive_count; rc++) {
+ if (archives[rc] > sizeof(ct->archives)) {
+ llapi_err_noerrno(LLAPI_MSG_ERROR,
+ "Maximum of %d archives supported",
+ sizeof(ct->archives));
+ goto out_err;
+ }
+ ct->archives |= 1 << archives[rc];
}
- return data.ioc_dev;
+ /* special case: if no archives specified, default to archive #0. */
+ if (ct->archives == 0)
+ ct->archives = 1;
+
+ rc = libcfs_ukuc_start(&ct->kuc, KUC_GRP_HSM);
+ if (rc < 0)
+ goto out_err;
+
+ /* Storing archive(s) in lk_data; see mdc_ioc_hsm_ct_start */
+ ct->kuc.lk_data = ct->archives;
+ rc = root_ioctl(ct->fsname, LL_IOC_HSM_CT_START, &(ct->kuc), NULL,
+ WANT_ERROR);
+ /* Only the kernel reference keeps the write side open */
+ close(ct->kuc.lk_wfd);
+ ct->kuc.lk_wfd = 0;
+ if (rc < 0)
+ goto out_err;
+
+ *priv = ct;
+ return 0;
+
+out_err:
+ if (ct->fsname)
+ free(ct->fsname);
+ free(ct);
+ return rc;
}
-int llapi_fid2path(char *device, char *fidstr, char *buf, int buflen,
- __u64 recno, int *linkno)
+/** Deregister a copytool */
+int llapi_copytool_fini(void **priv)
{
- struct lu_fid fid;
- struct obd_ioctl_data data;
- int dev, rc;
+ struct copytool_private *ct = (struct copytool_private *)*priv;
- while (*fidstr == '[')
- fidstr++;
+ if (!ct || (ct->magic != CT_PRIV_MAGIC))
+ return -EINVAL;
- sscanf(fidstr, "0x%llx:0x%x:0x%x", &(fid.f_seq), &(fid.f_oid),
- &(fid.f_ver));
- if (!fid_is_sane(&fid)) {
- llapi_err(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO,
- "bad FID format [%s], should be "DFID"\n",
- fidstr, (__u64)1, 2, 0);
+ /* Tell the kernel to stop sending us messages */
+ ct->kuc.lk_flags = LK_FLG_STOP;
+ root_ioctl(ct->fsname, LL_IOC_HSM_CT_START, &(ct->kuc), NULL, 0);
+
+ /* Shut down the kernelcomms */
+ libcfs_ukuc_stop(&ct->kuc);
+
+ free(ct->fsname);
+ free(ct);
+ *priv = NULL;
+ return 0;
+}
+
+/** Wait for the next hsm_action_list
+ * @param priv Opaque private control structure
+ * @param halh Action list handle, will be allocated here
+ * @param msgsize Number of bytes in the message, will be set here
+ * @return 0 valid message received; halh and msgsize are set
+ * <0 error code
+ */
+int llapi_copytool_recv(void *priv, struct hsm_action_list **halh, int *msgsize)
+{
+ struct copytool_private *ct = (struct copytool_private *)priv;
+ struct kuc_hdr *kuch;
+ struct hsm_action_list *hal;
+ int rc = 0;
+
+ if (!ct || (ct->magic != CT_PRIV_MAGIC))
+ return -EINVAL;
+ if (halh == NULL || msgsize == NULL)
return -EINVAL;
+
+ kuch = malloc(HAL_MAXSIZE + sizeof(*kuch));
+ if (kuch == NULL)
+ return -ENOMEM;
+
+ rc = libcfs_ukuc_msg_get(&ct->kuc, (char *)kuch,
+ HAL_MAXSIZE + sizeof(*kuch),
+ KUC_TRANSPORT_HSM);
+ if (rc < 0)
+ goto out_free;
+
+ /* Handle generic messages */
+ if (kuch->kuc_transport == KUC_TRANSPORT_GENERIC &&
+ kuch->kuc_msgtype == KUC_MSG_SHUTDOWN) {
+ rc = -ESHUTDOWN;
+ goto out_free;
+ }
+
+ if (kuch->kuc_transport != KUC_TRANSPORT_HSM ||
+ kuch->kuc_msgtype != HMT_ACTION_LIST) {
+ llapi_err_noerrno(LLAPI_MSG_ERROR,
+ "Unknown HSM message type %d:%d\n",
+ kuch->kuc_transport, kuch->kuc_msgtype);
+ rc = -EPROTO;
+ goto out_free;
}
- dev = dev_name2dev(device);
- if (dev < 0)
- return dev;
+ /* Our message is a hsm_action_list. Use pointer math to skip
+ * kuch_hdr and point directly to the message payload.
+ */
+ hal = (struct hsm_action_list *)(kuch + 1);
+
+ /* Check that we have registered for this archive # */
+ if (((1 << hal->hal_archive_num) & ct->archives) == 0) {
+ llapi_err_noerrno(LLAPI_MSG_INFO,
+ "Ignoring request for archive #%d (bitmask %#x)\n",
+ hal->hal_archive_num, ct->archives);
+ rc = 0;
+ goto out_free;
+ }
- memset(&data, 0, sizeof(data));
- data.ioc_inlbuf1 = (char *)&fid;
- data.ioc_inllen1 = sizeof(fid);
- data.ioc_inlbuf2 = (char *)&recno;
- data.ioc_inllen2 = sizeof(__u64);
- data.ioc_inlbuf3 = (char *)linkno;
- data.ioc_inllen3 = sizeof(int);
- data.ioc_plen1 = buflen;
- data.ioc_pbuf1 = buf;
- rc = dev_ioctl(&data, dev, OBD_IOC_FID2PATH);
+ *halh = hal;
+ *msgsize = kuch->kuc_msglen - sizeof(*kuch);
+ return 0;
+out_free:
+ *halh = NULL;
+ *msgsize = 0;
+ free(kuch);
return rc;
}
-int llapi_path2fid(const char *path, unsigned long long *seq,
- unsigned long *oid, unsigned long *ver)
+/** Release the action list when done with it. */
+int llapi_copytool_free(struct hsm_action_list **hal)
{
- struct lu_fid fid;
- int fd, rc;
+ /* Reuse the llapi_changelog_free function */
+ return llapi_changelog_free((struct changelog_ext_rec **)hal);
+}
- fd = open(path, O_RDONLY);
- if (fd < 0)
+int llapi_get_connect_flags(const char *mnt, __u64 *flags)
+{
+ DIR *root;
+ int rc;
+
+ root = opendir(mnt);
+ if (!root) {
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
+ return rc;
+ }
+
+ rc = ioctl(dirfd(root), LL_IOC_GET_CONNECT_FLAGS, flags);
+ if (rc < 0) {
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "ioctl on %s for getting connect flags failed", mnt);
+ }
+ closedir(root);
+ return rc;
+}
+
+int llapi_get_version(char *buffer, int buffer_size,
+ char **version)
+{
+ int rc;
+ int fd;
+ struct obd_ioctl_data *data = (struct obd_ioctl_data *)buffer;
+
+ fd = open(OBD_DEV_PATH, O_RDONLY);
+ if (fd == -1)
return -errno;
- rc = ioctl(fd, LL_IOC_PATH2FID, &fid);
- *seq = fid_seq(&fid);
- *oid = fid_oid(&fid);
- *ver = fid_ver(&fid);
+ memset(buffer, 0, buffer_size);
+ data->ioc_version = OBD_IOCTL_VERSION;
+ data->ioc_inllen1 = buffer_size - cfs_size_round(sizeof(*data));
+ data->ioc_inlbuf1 = buffer + cfs_size_round(sizeof(*data));
+ data->ioc_len = obd_ioctl_packlen(data);
+ rc = ioctl(fd, OBD_GET_VERSION, buffer);
+ if (rc == -1) {
+ rc = -errno;
+ close(fd);
+ return rc;
+ }
close(fd);
- return rc;
+ *version = data->ioc_bulk;
+ return 0;
}
+/**
+ * Get a 64-bit value representing the version of file data pointed by fd.
+ *
+ * Each write or truncate, flushed on OST, will change this value. You can use
+ * this value to verify if file data was modified. This only checks the file
+ * data, not metadata.
+ *
+ * \param flags If set to LL_DV_NOFLUSH, the data version will be read
+ * directly from OST without regard to possible dirty cache on
+ * client nodes.
+ *
+ * \retval 0 on success.
+ * \retval -errno on error.
+ */
+int llapi_get_data_version(int fd, __u64 *data_version, __u64 flags)
+{
+ int rc;
+ struct ioc_data_version idv;
+
+ idv.idv_flags = flags;
+
+ rc = ioctl(fd, LL_IOC_DATA_VERSION, &idv);
+ if (rc)
+ rc = -errno;
+ else
+ *data_version = idv.idv_version;
+
+ return rc;
+}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff