/** Read a message from the link.
* Allocates memory, returns handle
*
* @param link Private descriptor for pipe/socket.
* @param buf Buffer to read into, must include size for kuc_hdr
* @param maxsize Maximum message size allowed
* @param transport Only listen to messages on this transport
* (and the generic transport)
*/
int libcfs_ukuc_msg_get(struct lustre_kernelcomm *link, char *buf, int maxsize,
int transport)
{
struct kuc_hdr *kuch;
int rc = 0;
memset(buf, 0, maxsize);
while (1) {
/* Read header first to get message size */
rc = read(link->lk_rfd, buf, lhsz);
if (rc <= 0) {
rc = -errno;
break;
}
kuch = (struct kuc_hdr *)buf;
if (kuch->kuc_magic != KUC_MAGIC) {
llapi_err_noerrno(LLAPI_MSG_ERROR,
"bad message magic %x != %x\n",
kuch->kuc_magic, KUC_MAGIC);
rc = -EPROTO;
break;
}
if (kuch->kuc_msglen > maxsize) {
rc = -EMSGSIZE;
break;
}
/* Read payload */
rc = read(link->lk_rfd, buf + lhsz, kuch->kuc_msglen - lhsz);
if (rc < 0) {
rc = -errno;
break;
}
if (rc < (kuch->kuc_msglen - lhsz)) {
llapi_err_noerrno(LLAPI_MSG_ERROR,
"short read: got %d of %d bytes\n",
rc, kuch->kuc_msglen);
rc = -EPROTO;
break;
}
if (kuch->kuc_transport == transport ||
kuch->kuc_transport == KUC_TRANSPORT_GENERIC) {
return 0;
}
/* Drop messages for other transports */
}
return rc;
}
/* Returns bytes read on success and a negative value on failure.
* If zero bytes are read it will be treated as failure as such
* zero cannot be returned from this function.
*/
int read_proc_entry(char *proc_path, char *buf, int len)
{
int rc, fd;
memset(buf, 0, len);
fd = open(proc_path, O_RDONLY);
if (fd < 0) {
llapi_error(LLAPI_MSG_ERROR, -errno, "cannot open '%s'",
proc_path);
return -2;
}
rc = read(fd, buf, len - 1);
if (rc < 0) {
llapi_error(LLAPI_MSG_ERROR, -errno,
"error reading from '%s'", proc_path);
rc = -3;
} else if (rc == 0) {
llapi_err_noerrno(LLAPI_MSG_ERROR,
"read zero bytes from '%s'", proc_path);
rc = -4;
} else if (buf[rc - 1] == '\n') {
buf[rc - 1] = '\0'; /* Remove trailing newline */
}
close(fd);
return rc;
}
int compare_lum(struct obd_uuid *puuid, struct lov_user_md *lum_dir,
struct lov_user_md *lum_file1, struct lov_user_md *lum_file2)
{
struct lov_comp_md_v1 *comp_dir, *comp_file1;
struct lov_user_md *sub_dir, *sub_file1;
int i, rc = 0;
if (lum_dir == NULL || lum_dir->lmm_magic != LOV_MAGIC_COMP_V1)
return compare(puuid, lum_dir, lum_file1, lum_file2);
comp_dir = (struct lov_comp_md_v1 *)lum_dir;
comp_file1 = (struct lov_comp_md_v1 *)lum_file1;
if (lum_file1->lmm_magic != lum_dir->lmm_magic) {
llapi_err_noerrno(LLAPI_MSG_ERROR, "file1 magic %#x != %#x\n",
lum_file1->lmm_magic, lum_dir->lmm_magic);
return 10;
}
if (comp_file1->lcm_entry_count != comp_dir->lcm_entry_count) {
llapi_err_noerrno(LLAPI_MSG_ERROR, "file1 comp cnt %d != %d\n",
comp_file1->lcm_entry_count,
comp_dir->lcm_entry_count);
return 11;
}
for (i = 0; i < comp_dir->lcm_entry_count; i++) {
sub_dir = (struct lov_user_md *)((char *)comp_dir +
comp_dir->lcm_entries[i].lcme_offset);
sub_file1 = (struct lov_user_md *)((char *)comp_file1 +
comp_file1->lcm_entries[i].lcme_offset);
rc = compare(puuid, sub_dir, sub_file1, NULL);
if (rc)
break;
}
return rc;
}
static inline const char *llapi_hsm_ct_ev2str(int type)
{
switch (type) {
case CT_REGISTER:
return "REGISTER";
case CT_UNREGISTER:
return "UNREGISTER";
case CT_ARCHIVE_START:
return "ARCHIVE_START";
case CT_ARCHIVE_RUNNING:
return "ARCHIVE_RUNNING";
case CT_ARCHIVE_FINISH:
return "ARCHIVE_FINISH";
case CT_ARCHIVE_CANCEL:
return "ARCHIVE_CANCEL";
case CT_ARCHIVE_ERROR:
return "ARCHIVE_ERROR";
case CT_RESTORE_START:
return "RESTORE_START";
case CT_RESTORE_RUNNING:
return "RESTORE_RUNNING";
case CT_RESTORE_FINISH:
return "RESTORE_FINISH";
case CT_RESTORE_CANCEL:
return "RESTORE_CANCEL";
case CT_RESTORE_ERROR:
return "RESTORE_ERROR";
case CT_REMOVE_START:
return "REMOVE_START";
case CT_REMOVE_RUNNING:
return "REMOVE_RUNNING";
case CT_REMOVE_FINISH:
return "REMOVE_FINISH";
case CT_REMOVE_CANCEL:
return "REMOVE_CANCEL";
case CT_REMOVE_ERROR:
return "REMOVE_ERROR";
default:
llapi_err_noerrno(LLAPI_MSG_ERROR,
"Unknown event type: %d", type);
return NULL;
}
}
/** Wait for the next hsm_action_list
* \param ct 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
* Note: The application must not call llapi_hsm_copytool_recv until it has
* cleared the data in ct->kuch from the previous call.
*/
int llapi_hsm_copytool_recv(struct hsm_copytool_private *ct,
struct hsm_action_list **halh, int *msgsize)
{
struct kuc_hdr *kuch;
struct hsm_action_list *hal;
int rc = 0;
if (ct == NULL || ct->magic != CT_PRIV_MAGIC)
return -EINVAL;
if (halh == NULL || msgsize == NULL)
return -EINVAL;
kuch = ct->kuch;
repeat:
rc = libcfs_ukuc_msg_get(&ct->kuc, (char *)kuch,
HAL_MAXSIZE + sizeof(*kuch),
KUC_TRANSPORT_HSM);
if (rc < 0)
goto out_err;
/* Handle generic messages */
if (kuch->kuc_transport == KUC_TRANSPORT_GENERIC &&
kuch->kuc_msgtype == KUC_MSG_SHUTDOWN) {
rc = -ESHUTDOWN;
goto out_err;
}
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_err;
}
if (kuch->kuc_msglen < sizeof(*kuch) + sizeof(*hal)) {
llapi_err_noerrno(LLAPI_MSG_ERROR, "Short HSM message %d",
kuch->kuc_msglen);
rc = -EPROTO;
goto out_err;
}
/* 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 0 registered, we serve any archive */
if (ct->archives &&
((1 << (hal->hal_archive_id - 1)) & ct->archives) == 0) {
llapi_err_noerrno(LLAPI_MSG_INFO,
"This copytool does not service archive #%d,"
" ignoring this request."
" Mask of served archive is 0x%.8X",
hal->hal_archive_id, ct->archives);
goto repeat;
}
*halh = hal;
*msgsize = kuch->kuc_msglen - sizeof(*kuch);
return 0;
out_err:
*halh = NULL;
*msgsize = 0;
return rc;
}
/** Register a copytool
* \param[out] priv Opaque private control structure
* \param mnt Lustre filesystem mount point
* \param archive_count Number of valid archive IDs in \a archives
* \param archives Which archive numbers this copytool is
* responsible for
* \param rfd_flags flags applied to read fd of pipe
* (e.g. O_NONBLOCK)
*
* \retval 0 on success.
* \retval -errno on error.
*/
int llapi_hsm_copytool_register(struct hsm_copytool_private **priv,
const char *mnt, int archive_count,
int *archives, int rfd_flags)
{
struct hsm_copytool_private *ct;
int rc;
if (archive_count > 0 && archives == NULL) {
llapi_err_noerrno(LLAPI_MSG_ERROR,
"NULL archive numbers");
return -EINVAL;
}
if (archive_count > LL_HSM_MAX_ARCHIVE) {
llapi_err_noerrno(LLAPI_MSG_ERROR, "%d requested when maximum "
"of %zu archives supported", archive_count,
LL_HSM_MAX_ARCHIVE);
return -EINVAL;
}
ct = calloc(1, sizeof(*ct));
if (ct == NULL)
return -ENOMEM;
ct->magic = CT_PRIV_MAGIC;
ct->mnt_fd = -1;
ct->open_by_fid_fd = -1;
ct->kuc.lk_rfd = LK_NOFD;
ct->kuc.lk_wfd = LK_NOFD;
ct->mnt = strdup(mnt);
if (ct->mnt == NULL) {
rc = -ENOMEM;
goto out_err;
}
ct->kuch = malloc(HAL_MAXSIZE + sizeof(*ct->kuch));
if (ct->kuch == NULL) {
rc = -ENOMEM;
goto out_err;
}
ct->mnt_fd = open(ct->mnt, O_RDONLY);
if (ct->mnt_fd < 0) {
rc = -errno;
goto out_err;
}
ct->open_by_fid_fd = openat(ct->mnt_fd, OPEN_BY_FID_PATH, O_RDONLY);
if (ct->open_by_fid_fd < 0) {
rc = -errno;
goto out_err;
}
/* no archives specified means "match all". */
ct->archives = 0;
for (rc = 0; rc < archive_count; rc++) {
if ((archives[rc] > LL_HSM_MAX_ARCHIVE) || (archives[rc] < 0)) {
llapi_err_noerrno(LLAPI_MSG_ERROR, "%d requested when "
"archive id [0 - %zu] is supported",
archives[rc], LL_HSM_MAX_ARCHIVE);
rc = -EINVAL;
goto out_err;
}
/* in the list we have an all archive wildcard
* so move to all archives mode
*/
if (archives[rc] == 0) {
ct->archives = 0;
archive_count = 0;
break;
}
ct->archives |= (1 << (archives[rc] - 1));
}
rc = libcfs_ukuc_start(&ct->kuc, KUC_GRP_HSM, rfd_flags);
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 = ioctl(ct->mnt_fd, LL_IOC_HSM_CT_START, &ct->kuc);
if (rc < 0) {
rc = -errno;
llapi_error(LLAPI_MSG_ERROR, rc,
"cannot start copytool on '%s'", mnt);
goto out_kuc;
}
llapi_hsm_log_ct_registration(&ct, CT_REGISTER);
/* Only the kernel reference keeps the write side open */
close(ct->kuc.lk_wfd);
ct->kuc.lk_wfd = LK_NOFD;
*priv = ct;
return 0;
out_kuc:
/* cleanup the kuc channel */
libcfs_ukuc_stop(&ct->kuc);
out_err:
if (!(ct->mnt_fd < 0))
close(ct->mnt_fd);
if (!(ct->open_by_fid_fd < 0))
close(ct->open_by_fid_fd);
free(ct->mnt);
free(ct->kuch);
free(ct);
return rc;
}
int compare(struct obd_uuid *puuid, struct lov_user_md *lum_dir,
struct lov_user_md *lum_file1, struct lov_user_md *lum_file2)
{
int stripe_count = 0, min_stripe_count = 0, def_stripe_count = 1;
int stripe_size = 0;
int stripe_offset = -1;
int ost_count;
char buf[128];
glob_t path;
int i;
if (cfs_get_param_paths(&path, "lov/%s/stripecount", puuid->uuid) != 0)
return 2;
if (read_proc_entry(path.gl_pathv[0], buf, sizeof(buf)) < 0) {
cfs_free_param_data(&path);
return 5;
}
cfs_free_param_data(&path);
def_stripe_count = (short)atoi(buf);
if (cfs_get_param_paths(&path, "lov/%s/numobd", puuid->uuid) != 0)
return 2;
if (read_proc_entry(path.gl_pathv[0], buf, sizeof(buf)) < 0) {
cfs_free_param_data(&path);
return 6;
}
cfs_free_param_data(&path);
ost_count = atoi(buf);
if (lum_dir == NULL) {
stripe_count = def_stripe_count;
min_stripe_count = -1;
} else {
stripe_count = (signed short)lum_dir->lmm_stripe_count;
printf("dir stripe %d, ", stripe_count);
min_stripe_count = 1;
}
printf("default stripe %d, ost count %d\n",
def_stripe_count, ost_count);
if (stripe_count == 0) {
min_stripe_count = -1;
stripe_count = 1;
}
stripe_count = (stripe_count > 0 && stripe_count <= ost_count) ?
stripe_count : ost_count;
min_stripe_count = min_stripe_count > 0 ? stripe_count :
((stripe_count + 1) / 2);
if (lum_file1->lmm_stripe_count != stripe_count ||
lum_file1->lmm_stripe_count < min_stripe_count) {
llapi_err_noerrno(LLAPI_MSG_ERROR,
"file1 stripe count %d != dir %d\n",
lum_file1->lmm_stripe_count, stripe_count);
return 7;
}
if (lum_file1->lmm_stripe_count < stripe_count)
llapi_err_noerrno(LLAPI_MSG_WARN,
"warning: file1 used fewer stripes"
" %d < dir %d (likely due to bug 4900)\n",
lum_file1->lmm_stripe_count, stripe_count);
if (lum_dir != NULL)
stripe_size = (int)lum_dir->lmm_stripe_size;
if (stripe_size == 0) {
if (cfs_get_param_paths(&path, "lov/%s/stripesize",
puuid->uuid) != 0)
return 2;
if (read_proc_entry(path.gl_pathv[0], buf, sizeof(buf)) < 0) {
cfs_free_param_data(&path);
return 5;
}
cfs_free_param_data(&path);
stripe_size = atoi(buf);
}
if (lum_file1->lmm_stripe_size != stripe_size) {
llapi_err_noerrno(LLAPI_MSG_ERROR,
"file1 stripe size %d != dir %d\n",
lum_file1->lmm_stripe_size, stripe_size);
return 8;
}
if (lum_dir != NULL)
stripe_offset = (short int)lum_dir->lmm_stripe_offset;
if (stripe_offset != -1) {
for (i = 0; i < stripe_count; i++)
if (lum_file1->lmm_objects[i].l_ost_idx !=
(stripe_offset + i) % ost_count) {
llapi_err_noerrno(LLAPI_MSG_WARN,
"warning: file1 non-sequential "
"stripe[%d] %d != %d\n", i,
lum_file1->lmm_objects[i].l_ost_idx,
(stripe_offset + i) % ost_count);
}
} else if (lum_file2 != NULL) {
int next, idx, stripe = stripe_count - 1;
next = (lum_file1->lmm_objects[stripe].l_ost_idx + 1) %
ost_count;
idx = lum_file2->lmm_objects[0].l_ost_idx;
if (idx != next) {
llapi_err_noerrno(LLAPI_MSG_WARN,
"warning: non-sequential "
"file1 stripe[%d] %d != file2 stripe[0] %d\n",
stripe, lum_file1->lmm_objects[stripe].l_ost_idx,
idx);
}
}
return 0;
}
int main(int argc, char **argv)
{
struct lov_user_md *lum_dir, *lum_file1 = NULL, *lum_file2 = NULL;
struct obd_uuid uuid;
int lum_size, rc;
DIR *dir;
if (argc < 3) {
llapi_err_noerrno(LLAPI_MSG_ERROR,
"Usage: %s <dirname> <filename1> [filename2]\n",
argv[0]);
return 1;
}
dir = opendir(argv[1]);
if (dir == NULL) {
rc = -errno;
llapi_error(LLAPI_MSG_ERROR, rc,
"error: %s opendir failed", argv[1]);
return rc;
}
lum_size = lov_user_md_size(MAX_LOV_UUID_COUNT, LOV_USER_MAGIC);
lum_dir = (struct lov_user_md *)malloc(lum_size);
if (lum_dir == NULL) {
rc = -ENOMEM;
llapi_error(LLAPI_MSG_ERROR, rc,
"error: can't allocate %d bytes "
"for dir EA", lum_size);
goto cleanup;
}
rc = llapi_file_get_stripe(argv[1], lum_dir);
if (rc == -ENODATA) {
char root[PATH_MAX], path[PATH_MAX + 2];
rc = llapi_search_mounts(argv[1], 0, root, NULL);
if (rc) {
llapi_error(LLAPI_MSG_ERROR, rc, "error: can't get "
"root path for %s\n", argv[1]);
goto cleanup;
}
snprintf(path, sizeof(path), "%s/.", root);
rc = llapi_file_get_stripe(path, lum_dir);
if (rc == -ENODATA) {
free(lum_dir);
lum_dir = NULL;
} else if (rc) {
llapi_error(LLAPI_MSG_ERROR, rc, "error: cant't get "
"root's LOVEA for %s\n", path);
goto cleanup;
}
} else if (rc) {
llapi_error(LLAPI_MSG_ERROR, rc, "error: can't get LOVEA for "
"%s", argv[1]);
goto cleanup;
}
/* XXX should be llapi_lov_getname() */
rc = llapi_file_get_lov_uuid(argv[1], &uuid);
if (rc) {
llapi_error(LLAPI_MSG_ERROR, rc,
"error: can't get lov name for %s",
argv[1]);
return rc;
}
lum_file1 = malloc(lum_size);
if (lum_file1 == NULL) {
rc = -ENOMEM;
llapi_error(LLAPI_MSG_ERROR, rc,
"error: can't allocate %d bytes for EA",
lum_size);
goto cleanup;
}
rc = llapi_file_get_stripe(argv[2], lum_file1);
if (rc) {
llapi_error(LLAPI_MSG_ERROR, rc,
"error: unable to get EA for %s", argv[2]);
goto cleanup;
}
if (argc == 4) {
lum_file2 = (struct lov_user_md *)malloc(lum_size);
if (lum_file2 == NULL) {
rc = -ENOMEM;
llapi_error(LLAPI_MSG_ERROR, rc,
"error: can't allocate %d "
"bytes for file2 EA", lum_size);
goto cleanup;
}
rc = llapi_file_get_stripe(argv[3], lum_file2);
if (rc) {
llapi_error(LLAPI_MSG_ERROR, rc,
"error: can't get EA for %s", argv[3]);
goto cleanup;
}
}
rc = compare_lum(&uuid, lum_dir, lum_file1, lum_file2);
cleanup:
closedir(dir);
if (lum_dir != NULL)
free(lum_dir);
if (lum_file1 != NULL)
free(lum_file1);
if (lum_file2 != NULL)
free(lum_file2);
return rc;
}
int compare(struct lov_user_md *lum_dir, struct lov_user_md *lum_file1,
struct lov_user_md *lum_file2)
{
int stripe_count = 0, min_stripe_count = 0, def_stripe_count = 1;
int stripe_size = 0;
int stripe_offset = -1;
int ost_count;
char buf[128];
char lov_path[PATH_MAX];
char tmp_path[PATH_MAX];
int i;
FILE *fp;
fp = popen("\\ls -d /proc/fs/lustre/lov/*clilov* | head -1", "r");
if (fp == NULL) {
llapi_error(LLAPI_MSG_ERROR, -errno,
"open(lustre/lov/*clilov*) failed");
return 2;
}
if (fscanf(fp, "%s", lov_path) < 1) {
llapi_error(LLAPI_MSG_ERROR, -EINVAL,
"read(lustre/lov/*clilov*) failed");
pclose(fp);
return 3;
}
pclose(fp);
snprintf(tmp_path, sizeof(tmp_path) - 1, "%s/stripecount",
lov_path);
if (read_proc_entry(tmp_path, buf, sizeof(buf)) < 0)
return 5;
def_stripe_count = (short)atoi(buf);
snprintf(tmp_path, sizeof(tmp_path) - 1, "%s/numobd", lov_path);
if (read_proc_entry(tmp_path, buf, sizeof(buf)) < 0)
return 6;
ost_count = atoi(buf);
if (lum_dir == NULL) {
stripe_count = def_stripe_count;
min_stripe_count = -1;
} else {
stripe_count = (signed short)lum_dir->lmm_stripe_count;
printf("dir stripe %d, ", stripe_count);
min_stripe_count = 1;
}
printf("default stripe %d, ost count %d\n",
def_stripe_count, ost_count);
if (stripe_count == 0) {
min_stripe_count = -1;
stripe_count = 1;
}
stripe_count = (stripe_count > 0 && stripe_count <= ost_count) ?
stripe_count : ost_count;
min_stripe_count = min_stripe_count > 0 ? stripe_count :
((stripe_count + 1) / 2);
if (lum_file1->lmm_stripe_count != stripe_count ||
lum_file1->lmm_stripe_count < min_stripe_count) {
llapi_err_noerrno(LLAPI_MSG_ERROR,
"file1 stripe count %d != dir %d\n",
lum_file1->lmm_stripe_count, stripe_count);
return 7;
}
if (lum_file1->lmm_stripe_count < stripe_count)
llapi_err_noerrno(LLAPI_MSG_WARN,
"warning: file1 used fewer stripes"
" %d < dir %d (likely due to bug 4900)\n",
lum_file1->lmm_stripe_count, stripe_count);
if (lum_dir != NULL)
stripe_size = (int)lum_dir->lmm_stripe_size;
if (stripe_size == 0) {
snprintf(tmp_path, sizeof(tmp_path) - 1, "%s/stripesize",
lov_path);
if (read_proc_entry(tmp_path, buf, sizeof(buf)) < 0)
return 5;
stripe_size = atoi(buf);
}
if (lum_file1->lmm_stripe_size != stripe_size) {
llapi_err_noerrno(LLAPI_MSG_ERROR,
"file1 stripe size %d != dir %d\n",
lum_file1->lmm_stripe_size, stripe_size);
return 8;
}
if (lum_dir != NULL)
stripe_offset = (short int)lum_dir->lmm_stripe_offset;
if (stripe_offset != -1) {
for (i = 0; i < stripe_count; i++)
if (lum_file1->lmm_objects[i].l_ost_idx !=
(stripe_offset + i) % ost_count) {
llapi_err_noerrno(LLAPI_MSG_WARN,
"warning: file1 non-sequential "
"stripe[%d] %d != %d\n", i,
lum_file1->lmm_objects[i].l_ost_idx,
(stripe_offset + i) % ost_count);
}
} else if (lum_file2 != NULL) {
int next, idx, stripe = stripe_count - 1;
next = (lum_file1->lmm_objects[stripe].l_ost_idx + 1) %
ost_count;
idx = lum_file2->lmm_objects[0].l_ost_idx;
if (idx != next) {
llapi_err_noerrno(LLAPI_MSG_WARN,
"warning: non-sequential "
"file1 stripe[%d] %d != file2 stripe[0] %d\n",
stripe, lum_file1->lmm_objects[stripe].l_ost_idx,
idx);
}
}
return 0;
}
int main(int argc, char **argv)
{
DIR * dir;
struct lov_user_md *lum_dir, *lum_file1 = NULL, *lum_file2 = NULL;
int rc;
int lum_size;
if (argc < 3) {
llapi_err_noerrno(LLAPI_MSG_ERROR,
"Usage: %s <dirname> <filename1> [filename2]\n",
argv[0]);
return 1;
}
dir = opendir(argv[1]);
if (dir == NULL) {
rc = -errno;
llapi_error(LLAPI_MSG_ERROR, rc,
"error: %s opendir failed", argv[1]);
return rc;
}
lum_size = lov_user_md_size(MAX_LOV_UUID_COUNT, LOV_USER_MAGIC);
lum_dir = (struct lov_user_md *)malloc(lum_size);
if (lum_dir == NULL) {
rc = -ENOMEM;
llapi_error(LLAPI_MSG_ERROR, rc,
"error: can't allocate %d bytes "
"for dir EA", lum_size);
goto cleanup;
}
rc = llapi_file_get_stripe(argv[1], lum_dir);
if (rc) {
if (rc == -ENODATA) {
free(lum_dir);
lum_dir = NULL;
} else {
llapi_error(LLAPI_MSG_ERROR, rc,
"error: can't get EA for %s", argv[1]);
goto cleanup;
}
}
/* XXX should be llapi_lov_getname() */
rc = llapi_file_get_lov_uuid(argv[1], &lov_uuid);
if (rc) {
llapi_error(LLAPI_MSG_ERROR, rc,
"error: can't get lov name for %s",
argv[1]);
return rc;
}
lum_file1 = malloc(lum_size);
if (lum_file1 == NULL) {
rc = -ENOMEM;
llapi_error(LLAPI_MSG_ERROR, rc,
"error: can't allocate %d bytes for EA",
lum_size);
goto cleanup;
}
rc = llapi_file_get_stripe(argv[2], lum_file1);
if (rc) {
llapi_error(LLAPI_MSG_ERROR, rc,
"error: unable to get EA for %s", argv[2]);
goto cleanup;
}
if (argc == 4) {
lum_file2 = (struct lov_user_md *)malloc(lum_size);
if (lum_file2 == NULL) {
rc = -ENOMEM;
llapi_error(LLAPI_MSG_ERROR, rc,
"error: can't allocate %d "
"bytes for file2 EA", lum_size);
goto cleanup;
}
rc = llapi_file_get_stripe(argv[3], lum_file2);
if (rc) {
llapi_error(LLAPI_MSG_ERROR, rc,
"error: can't get EA for %s", argv[3]);
goto cleanup;
}
}
rc = compare(lum_dir, lum_file1, lum_file2);
cleanup:
closedir(dir);
if (lum_dir != NULL)
free(lum_dir);
if (lum_file1 != NULL)
free(lum_file1);
if (lum_file2 != NULL)
free(lum_file2);
return rc;
}
