#include <sys/time.h>
#include <sys/types.h>
#include <sys/stat.h>
+#include <sys/param.h>
#include <fcntl.h>
#include <dirent.h>
#include <time.h>
#include <ctype.h>
+#include <zlib.h>
#include "lfs_project.h"
#include <libcfs/util/string.h>
static int lfs_mirror_list_commands(int argc, char **argv);
static int lfs_list_commands(int argc, char **argv);
static inline int lfs_mirror_resync(int argc, char **argv);
+static inline int lfs_mirror_verify(int argc, char **argv);
enum setstripe_origin {
SO_SETSTRIPE,
.pc_help = "Resynchronizes out-of-sync mirrored file(s).\n"
"usage: lfs mirror resync [--only <mirror_id[,...]>] "
"<mirrored file> [<mirrored file2>...]\n"},
+ { .pc_name = "verify", .pc_func = lfs_mirror_verify,
+ .pc_help = "Verify mirrored file(s).\n"
+ "usage: lfs mirror verify "
+ "[--only <mirror_id,mirror_id2[,...]>] "
+ "[--verbose|-v] <mirrored_file> [<mirrored_file2> ...]\n"},
{ .pc_name = "--list-commands", .pc_func = lfs_mirror_list_commands,
.pc_help = "list commands supported by lfs mirror"},
{ .pc_name = "help", .pc_func = Parser_help, .pc_help = "help" },
"lfs mirror create - create a mirrored file or directory\n"
"lfs mirror extend - add mirror(s) to an existing file\n"
"lfs mirror split - split a mirror from an existing mirrored file\n"
- "lfs mirror resync - resynchronize an out-of-sync mirrored file\n"
- "lfs mirror verify - verify a mirrored file\n"},
+ "lfs mirror resync - resynchronize out-of-sync mirrored file(s)\n"
+ "lfs mirror verify - verify mirrored file(s)\n"},
{"help", Parser_help, 0, "help"},
{"exit", Parser_quit, 0, "quit"},
{"quit", Parser_quit, 0, "quit"},
return rc < 0 ? rc : nr;
}
+/**
+ * struct verify_mirror_id - Mirror id to be verified.
+ * @mirror_id: A specified mirror id.
+ * @is_valid_id: @mirror_id is valid or not in the mirrored file.
+ */
+struct verify_mirror_id {
+ __u16 mirror_id;
+ bool is_valid_id;
+};
+
+/**
+ * compare_mirror_ids() - Compare mirror ids.
+ * @layout: Mirror component list.
+ * @cbdata: Callback data in verify_mirror_id structure.
+ *
+ * This is a callback function called by llapi_layout_comp_iterate()
+ * to compare the specified mirror id with the one in the current
+ * component of @layout. If they are the same, then the specified
+ * mirror id is valid.
+ *
+ * Return: a negative error code on failure or
+ * LLAPI_LAYOUT_ITER_CONT: Proceed iteration
+ * LLAPI_LAYOUT_ITER_STOP: Stop iteration
+ */
+static inline
+int compare_mirror_ids(struct llapi_layout *layout, void *cbdata)
+{
+ struct verify_mirror_id *mirror_id_cbdata =
+ (struct verify_mirror_id *)cbdata;
+ uint32_t mirror_id;
+ int rc = 0;
+
+ rc = llapi_layout_mirror_id_get(layout, &mirror_id);
+ if (rc < 0) {
+ rc = -errno;
+ fprintf(stderr,
+ "%s: llapi_layout_mirror_id_get failed: %s.\n",
+ progname, strerror(errno));
+ return rc;
+ }
+
+ if (mirror_id_cbdata->mirror_id == mirror_id) {
+ mirror_id_cbdata->is_valid_id = true;
+ return LLAPI_LAYOUT_ITER_STOP;
+ }
+
+ return LLAPI_LAYOUT_ITER_CONT;
+}
+
+/**
+ * verify_mirror_ids() - Verify specified mirror ids.
+ * @fname: Mirrored file name.
+ * @mirror_ids: Specified mirror ids to be verified.
+ * @ids_nr: Number of specified mirror ids.
+ *
+ * This function verifies that specified @mirror_ids are valid
+ * in the mirrored file @fname.
+ *
+ * Return: 0 on success or a negative error code on failure.
+ */
+static inline
+int verify_mirror_ids(const char *fname, __u16 *mirror_ids, int ids_nr)
+{
+ struct llapi_layout *layout = NULL;
+ struct verify_mirror_id mirror_id_cbdata = { 0 };
+ struct stat stbuf;
+ uint32_t flr_state;
+ int i;
+ int fd;
+ int rc = 0;
+ int rc2 = 0;
+
+ if (ids_nr <= 0)
+ return -EINVAL;
+
+ if (stat(fname, &stbuf) < 0) {
+ fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
+ progname, fname, strerror(errno));
+ rc = -errno;
+ goto error;
+ }
+
+ if (!S_ISREG(stbuf.st_mode)) {
+ fprintf(stderr, "%s: '%s' is not a regular file.\n",
+ progname, fname);
+ rc = -EINVAL;
+ goto error;
+ }
+
+ fd = open(fname, O_DIRECT | O_RDONLY);
+ if (fd < 0) {
+ fprintf(stderr, "%s: cannot open '%s': %s.\n",
+ progname, fname, strerror(errno));
+ rc = -errno;
+ goto error;
+ }
+
+ rc = llapi_lease_get(fd, LL_LEASE_RDLCK);
+ if (rc < 0) {
+ fprintf(stderr, "%s: '%s' llapi_lease_get failed: %s.\n",
+ progname, fname, strerror(errno));
+ goto close_fd;
+ }
+
+ layout = llapi_layout_get_by_fd(fd, 0);
+ if (layout == NULL) {
+ fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
+ progname, fname, strerror(errno));
+ rc = -errno;
+ llapi_lease_put(fd);
+ goto close_fd;
+ }
+
+ rc = llapi_layout_flags_get(layout, &flr_state);
+ if (rc < 0) {
+ fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
+ progname, fname, strerror(errno));
+ rc = -errno;
+ goto free_layout;
+ }
+
+ flr_state &= LCM_FL_FLR_MASK;
+ switch (flr_state) {
+ case LCM_FL_NOT_FLR:
+ rc = -EINVAL;
+ fprintf(stderr, "%s: '%s' file state error: %s.\n",
+ progname, fname, lcm_flags_string(flr_state));
+ goto free_layout;
+ default:
+ break;
+ }
+
+ rc2 = 0;
+ for (i = 0; i < ids_nr; i++) {
+ mirror_id_cbdata.mirror_id = mirror_ids[i];
+ mirror_id_cbdata.is_valid_id = false;
+
+ rc = llapi_layout_comp_iterate(layout, compare_mirror_ids,
+ &mirror_id_cbdata);
+ if (rc < 0) {
+ rc = -errno;
+ fprintf(stderr,
+ "%s: '%s' failed to verify mirror id: %u.\n",
+ progname, fname, mirror_ids[i]);
+ goto free_layout;
+ }
+
+ if (!mirror_id_cbdata.is_valid_id) {
+ rc2 = -EINVAL;
+ fprintf(stderr,
+ "%s: '%s' invalid specified mirror id: %u.\n",
+ progname, fname, mirror_ids[i]);
+ }
+ }
+ rc = rc2;
+
+free_layout:
+ llapi_layout_free(layout);
+ llapi_lease_put(fd);
+close_fd:
+ close(fd);
+error:
+ return rc;
+}
+
static inline
int lfs_mirror_resync_file(const char *fname, struct ll_ioc_lease *ioc,
__u16 *mirror_ids, int ids_nr)
}
+ if (ids_nr > 0) {
+ rc = verify_mirror_ids(argv[optind], mirror_ids, ids_nr);
+ if (rc < 0)
+ goto error;
+ }
+
/* set the lease on the file */
ioc = calloc(sizeof(*ioc) + sizeof(__u32) * 4096, 1);
if (ioc == NULL) {
}
/**
+ * struct verify_chunk - Mirror chunk to be verified.
+ * @chunk: [start, end) of the chunk.
+ * @mirror_count: Number of mirror ids in @mirror_id array.
+ * @mirror_id: Array of valid mirror ids that cover the chunk.
+ */
+struct verify_chunk {
+ struct lu_extent chunk;
+ unsigned int mirror_count;
+ __u16 mirror_id[LUSTRE_MIRROR_COUNT_MAX];
+};
+
+/**
+ * print_chunks() - Print chunk information.
+ * @fname: Mirrored file name.
+ * @chunks: Array of chunks.
+ * @chunk_count: Number of chunks in @chunks array.
+ *
+ * This function prints [start, end) of each chunk in @chunks
+ * for mirrored file @fname, and also prints the valid mirror ids
+ * that cover the chunk.
+ *
+ * Return: void.
+ */
+static inline
+void print_chunks(const char *fname, struct verify_chunk *chunks,
+ int chunk_count)
+{
+ int i;
+ int j;
+
+ fprintf(stdout, "Chunks to be verified in %s:\n", fname);
+ for (i = 0; i < chunk_count; i++) {
+ fprintf(stdout, DEXT, PEXT(&chunks[i].chunk));
+
+ if (chunks[i].mirror_count == 0)
+ fprintf(stdout, "\t[");
+ else {
+ fprintf(stdout, "\t[%u", chunks[i].mirror_id[0]);
+ for (j = 1; j < chunks[i].mirror_count; j++)
+ fprintf(stdout, ", %u", chunks[i].mirror_id[j]);
+ }
+ fprintf(stdout, "]\t%u\n", chunks[i].mirror_count);
+ }
+ fprintf(stdout, "\n");
+}
+
+/**
+ * print_checksums() - Print CRC-32 checksum values.
+ * @chunk: A chunk and its corresponding valid mirror ids.
+ * @crc: CRC-32 checksum values on the chunk for each valid mirror.
+ *
+ * This function prints CRC-32 checksum values on @chunk for
+ * each valid mirror that covers it.
+ *
+ * Return: void.
+ */
+static inline
+void print_checksums(struct verify_chunk *chunk, unsigned long *crc)
+{
+ int i;
+
+ fprintf(stdout,
+ "CRC-32 checksum value for chunk "DEXT":\n",
+ PEXT(&chunk->chunk));
+ for (i = 0; i < chunk->mirror_count; i++)
+ fprintf(stdout, "Mirror %u:\t%#lx\n",
+ chunk->mirror_id[i], crc[i]);
+ fprintf(stdout, "\n");
+}
+
+/**
+ * filter_mirror_id() - Filter specified mirror ids.
+ * @chunks: Array of chunks.
+ * @chunk_count: Number of chunks in @chunks array.
+ * @mirror_ids: Specified mirror ids to be verified.
+ * @ids_nr: Number of specified mirror ids.
+ *
+ * This function scans valid mirror ids that cover each chunk in @chunks
+ * and filters specified mirror ids.
+ *
+ * Return: void.
+ */
+static inline
+void filter_mirror_id(struct verify_chunk *chunks, int chunk_count,
+ __u16 *mirror_ids, int ids_nr)
+{
+ int i;
+ int j;
+ int k;
+ __u16 valid_id[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
+ unsigned int valid_count = 0;
+
+ for (i = 0; i < chunk_count; i++) {
+ if (chunks[i].mirror_count == 0)
+ continue;
+
+ valid_count = 0;
+ for (j = 0; j < ids_nr; j++) {
+ for (k = 0; k < chunks[i].mirror_count; k++) {
+ if (chunks[i].mirror_id[k] == mirror_ids[j]) {
+ valid_id[valid_count] = mirror_ids[j];
+ valid_count++;
+ break;
+ }
+ }
+ }
+
+ memcpy(chunks[i].mirror_id, valid_id,
+ sizeof(__u16) * valid_count);
+ chunks[i].mirror_count = valid_count;
+ }
+}
+
+/**
+ * lfs_mirror_prepare_chunk() - Find mirror chunks to be verified.
+ * @layout: Mirror component list.
+ * @chunks: Array of chunks.
+ * @chunks_size: Array size of @chunks.
+ *
+ * This function scans the components in @layout from offset 0 to LUSTRE_EOF
+ * to find out chunk segments and store them in @chunks array.
+ *
+ * The @mirror_id array in each element of @chunks will store the valid
+ * mirror ids that cover the chunk. If a mirror component covering the
+ * chunk has LCME_FL_STALE or LCME_FL_OFFLINE flag, then the mirror id
+ * will not be stored into the @mirror_id array, and the chunk for that
+ * mirror will not be verified.
+ *
+ * The @mirror_count in each element of @chunks will store the number of
+ * mirror ids in @mirror_id array. If @mirror_count is 0, it indicates the
+ * chunk is invalid in all of the mirrors. And if @mirror_count is 1, it
+ * indicates the chunk is valid in only one mirror. In both cases, the
+ * chunk will not be verified.
+ *
+ * Here is an example:
+ *
+ * 0 1M 2M 3M 4M EOF
+ * +------+-------------+--------------------+
+ * | | | S | mirror1
+ * +------+------+------+------+-------------+
+ * | | S | S | | mirror2
+ * +-------------+------+------+-------------+
+ *
+ * prepared @chunks array will contain 5 elements:
+ * (([0, 1M), [1, 2], 2),
+ * ([1M, 2M), [1, 2], 2),
+ * ([2M, 3M), [1], 1),
+ * ([3M, 4M], [], 0),
+ * ([4M, EOF), [2], 1))
+ *
+ * Return: the actual array size of @chunks on success
+ * or a negative error code on failure.
+ */
+static inline
+int lfs_mirror_prepare_chunk(struct llapi_layout *layout,
+ struct verify_chunk *chunks,
+ size_t chunks_size)
+{
+ uint64_t start;
+ uint64_t end;
+ uint32_t mirror_id;
+ uint32_t flags;
+ int idx = 0;
+ int i = 0;
+ int rc = 0;
+
+ memset(chunks, 0, sizeof(*chunks) * chunks_size);
+
+ while (1) {
+ rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
+ if (rc < 0) {
+ fprintf(stderr,
+ "%s: move to the first layout component: %s.\n",
+ progname, strerror(errno));
+ goto error;
+ }
+
+ i = 0;
+ rc = 0;
+ chunks[idx].chunk.e_end = LUSTRE_EOF;
+ while (rc == 0) {
+ rc = llapi_layout_comp_extent_get(layout, &start, &end);
+ if (rc < 0) {
+ fprintf(stderr,
+ "%s: llapi_layout_comp_extent_get failed: %s.\n",
+ progname, strerror(errno));
+ goto error;
+ }
+
+ if (start > chunks[idx].chunk.e_start ||
+ end <= chunks[idx].chunk.e_start)
+ goto next;
+
+ if (end < chunks[idx].chunk.e_end)
+ chunks[idx].chunk.e_end = end;
+
+ rc = llapi_layout_comp_flags_get(layout, &flags);
+ if (rc < 0) {
+ fprintf(stderr,
+ "%s: llapi_layout_comp_flags_get failed: %s.\n",
+ progname, strerror(errno));
+ goto error;
+ }
+
+ if (flags & LCME_FL_STALE || flags & LCME_FL_OFFLINE)
+ goto next;
+
+ rc = llapi_layout_mirror_id_get(layout, &mirror_id);
+ if (rc < 0) {
+ fprintf(stderr,
+ "%s: llapi_layout_mirror_id_get failed: %s.\n",
+ progname, strerror(errno));
+ goto error;
+ }
+
+ chunks[idx].mirror_id[i] = mirror_id;
+ i++;
+ if (i >= ARRAY_SIZE(chunks[idx].mirror_id)) {
+ fprintf(stderr,
+ "%s: mirror_id array is too small.\n",
+ progname);
+ rc = -EINVAL;
+ goto error;
+ }
+
+ next:
+ rc = llapi_layout_comp_use(layout,
+ LLAPI_LAYOUT_COMP_USE_NEXT);
+ if (rc < 0) {
+ fprintf(stderr,
+ "%s: move to the next layout component: %s.\n",
+ progname, strerror(errno));
+ goto error;
+ }
+ } /* loop through all components */
+
+ chunks[idx].mirror_count = i;
+
+ if (chunks[idx].chunk.e_end == LUSTRE_EOF)
+ break;
+
+ idx++;
+ if (idx >= chunks_size) {
+ fprintf(stderr, "%s: chunks array is too small.\n",
+ progname);
+ rc = -EINVAL;
+ goto error;
+ }
+
+ chunks[idx].chunk.e_start = chunks[idx - 1].chunk.e_end;
+ }
+
+error:
+ return rc < 0 ? rc : idx + 1;
+}
+
+/**
+ * lfs_mirror_verify_chunk() - Verify a chunk.
+ * @fd: File descriptor of the mirrored file.
+ * @file_size: Size of the mirrored file.
+ * @chunk: A chunk and its corresponding valid mirror ids.
+ * @verbose: Verbose mode.
+ *
+ * This function verifies a @chunk contains exactly the same data
+ * ammong the mirrors that cover it.
+ *
+ * If @verbose is specified, then the function will print where the
+ * differences are if the data do not match. Otherwise, it will
+ * just return an error in that case.
+ *
+ * Return: 0 on success or a negative error code on failure.
+ */
+static inline
+int lfs_mirror_verify_chunk(int fd, size_t file_size,
+ struct verify_chunk *chunk, int verbose)
+{
+ const size_t buflen = 4 * 1024 * 1024; /* 4M */
+ void *buf;
+ size_t page_size = sysconf(_SC_PAGESIZE);
+ ssize_t bytes_read;
+ ssize_t bytes_done;
+ size_t count;
+ off_t pos;
+ unsigned long crc;
+ unsigned long crc_array[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
+ int i;
+ int rc = 0;
+
+ if (file_size == 0)
+ return 0;
+
+ rc = posix_memalign(&buf, page_size, buflen);
+ if (rc) /* error code is returned directly */
+ return -rc;
+
+ if (verbose > 1) {
+ fprintf(stdout, "Verifying chunk "DEXT" on mirror:",
+ PEXT(&chunk->chunk));
+ for (i = 0; i < chunk->mirror_count; i++)
+ fprintf(stdout, " %u", chunk->mirror_id[i]);
+ fprintf(stdout, "\n");
+ }
+
+ bytes_done = 0;
+ count = MIN(chunk->chunk.e_end, file_size) - chunk->chunk.e_start;
+ pos = chunk->chunk.e_start;
+ while (bytes_done < count) {
+ /* compute initial CRC-32 checksum */
+ crc = crc32(0L, Z_NULL, 0);
+ memset(crc_array, 0, sizeof(crc_array));
+
+ bytes_read = 0;
+ for (i = 0; i < chunk->mirror_count; i++) {
+ bytes_read = llapi_mirror_read(fd, chunk->mirror_id[i],
+ buf, buflen, pos);
+ if (bytes_read < 0) {
+ rc = bytes_read;
+ fprintf(stderr,
+ "%s: failed to read data from mirror %u: %s.\n",
+ progname, chunk->mirror_id[i],
+ strerror(-rc));
+ goto error;
+ }
+
+ /* compute new CRC-32 checksum */
+ crc_array[i] = crc32(crc, buf, bytes_read);
+ }
+
+ if (verbose)
+ print_checksums(chunk, crc_array);
+
+ /* compare CRC-32 checksum values */
+ for (i = 1; i < chunk->mirror_count; i++) {
+ if (crc_array[i] != crc_array[0]) {
+ rc = -EINVAL;
+ if (!verbose)
+ goto error;
+
+ fprintf(stderr,
+ "%s: chunk "DEXT" has different checksum value on mirror %u and mirror %u.\n",
+ progname, PEXT(&chunk->chunk),
+ chunk->mirror_id[0],
+ chunk->mirror_id[i]);
+ }
+ }
+
+ pos += bytes_read;
+ bytes_done += bytes_read;
+ }
+
+ if (verbose > 1 && rc == 0) {
+ fprintf(stdout, "Verifying chunk "DEXT" on mirror:",
+ PEXT(&chunk->chunk));
+ for (i = 0; i < chunk->mirror_count; i++)
+ fprintf(stdout, " %u", chunk->mirror_id[i]);
+ fprintf(stdout, " PASS\n\n");
+ }
+
+error:
+ free(buf);
+ return rc;
+}
+
+/**
+ * lfs_mirror_verify_file() - Verify a mirrored file.
+ * @fname: Mirrored file name.
+ * @mirror_ids: Specified mirror ids to be verified.
+ * @ids_nr: Number of specified mirror ids.
+ * @verbose: Verbose mode.
+ *
+ * This function verifies that each SYNC mirror of a mirrored file
+ * specified by @fname contains exactly the same data.
+ *
+ * If @mirror_ids is specified, then the function will verify the
+ * mirrors specified by @mirror_ids contain exactly the same data.
+ *
+ * If @verbose is specified, then the function will print where the
+ * differences are if the data do not match. Otherwise, it will
+ * just return an error in that case.
+ *
+ * Return: 0 on success or a negative error code on failure.
+ */
+static inline
+int lfs_mirror_verify_file(const char *fname, __u16 *mirror_ids, int ids_nr,
+ int verbose)
+{
+ struct verify_chunk chunks_array[1024] = { };
+ struct llapi_layout *layout = NULL;
+ struct stat stbuf;
+ uint32_t flr_state;
+ int fd;
+ int chunk_count = 0;
+ int idx = 0;
+ int rc = 0;
+ int rc1 = 0;
+ int rc2 = 0;
+
+ if (stat(fname, &stbuf) < 0) {
+ fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
+ progname, fname, strerror(errno));
+ rc = -errno;
+ goto error;
+ }
+
+ if (!S_ISREG(stbuf.st_mode)) {
+ fprintf(stderr, "%s: '%s' is not a regular file.\n",
+ progname, fname);
+ rc = -EINVAL;
+ goto error;
+ }
+
+ if (stbuf.st_size == 0) {
+ if (verbose)
+ fprintf(stdout, "%s: '%s' file size is 0.\n",
+ progname, fname);
+ rc = 0;
+ goto error;
+ }
+
+ fd = open(fname, O_DIRECT | O_RDONLY);
+ if (fd < 0) {
+ fprintf(stderr, "%s: cannot open '%s': %s.\n",
+ progname, fname, strerror(errno));
+ rc = -errno;
+ goto error;
+ }
+
+ rc = llapi_lease_get(fd, LL_LEASE_RDLCK);
+ if (rc < 0) {
+ fprintf(stderr, "%s: '%s' llapi_lease_get failed: %s.\n",
+ progname, fname, strerror(errno));
+ goto close_fd;
+ }
+
+ layout = llapi_layout_get_by_fd(fd, 0);
+ if (layout == NULL) {
+ fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
+ progname, fname, strerror(errno));
+ rc = -errno;
+ llapi_lease_put(fd);
+ goto close_fd;
+ }
+
+ rc = llapi_layout_flags_get(layout, &flr_state);
+ if (rc < 0) {
+ fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
+ progname, fname, strerror(errno));
+ rc = -errno;
+ goto free_layout;
+ }
+
+ flr_state &= LCM_FL_FLR_MASK;
+ switch (flr_state) {
+ case LCM_FL_NOT_FLR:
+ rc = -EINVAL;
+ fprintf(stderr, "%s: '%s' file state error: %s.\n",
+ progname, fname, lcm_flags_string(flr_state));
+ goto free_layout;
+ default:
+ break;
+ }
+
+ /* find out mirror chunks to be verified */
+ chunk_count = lfs_mirror_prepare_chunk(layout, chunks_array,
+ ARRAY_SIZE(chunks_array));
+ if (chunk_count < 0) {
+ rc = chunk_count;
+ goto free_layout;
+ }
+
+ if (ids_nr > 0)
+ /* filter specified mirror ids */
+ filter_mirror_id(chunks_array, chunk_count, mirror_ids, ids_nr);
+
+ if (verbose > 2)
+ print_chunks(fname, chunks_array, chunk_count);
+
+ for (idx = 0; idx < chunk_count; idx++) {
+ if (chunks_array[idx].chunk.e_start >= stbuf.st_size) {
+ if (verbose)
+ fprintf(stdout,
+ "%s: '%s' chunk "DEXT" exceeds file size %#llx: skipped\n",
+ progname, fname,
+ PEXT(&chunks_array[idx].chunk),
+ (unsigned long long)stbuf.st_size);
+ break;
+ }
+
+ if (chunks_array[idx].mirror_count == 0) {
+ fprintf(stderr,
+ "%s: '%s' chunk "DEXT" is invalid in all of the mirrors: ",
+ progname, fname,
+ PEXT(&chunks_array[idx].chunk));
+ if (verbose) {
+ fprintf(stderr, "skipped\n");
+ continue;
+ }
+ rc = -EINVAL;
+ fprintf(stderr, "failed\n");
+ goto free_layout;
+ }
+
+ if (chunks_array[idx].mirror_count == 1) {
+ if (verbose)
+ fprintf(stdout,
+ "%s: '%s' chunk "DEXT" is only valid in mirror %u: skipped\n",
+ progname, fname,
+ PEXT(&chunks_array[idx].chunk),
+ chunks_array[idx].mirror_id[0]);
+ continue;
+ }
+
+ rc = llapi_lease_check(fd);
+ if (rc != LL_LEASE_RDLCK) {
+ fprintf(stderr, "%s: '%s' lost lease lock.\n",
+ progname, fname);
+ goto free_layout;
+ }
+
+ /* verify one chunk */
+ rc1 = lfs_mirror_verify_chunk(fd, stbuf.st_size,
+ &chunks_array[idx], verbose);
+ if (rc1 < 0) {
+ rc2 = rc1;
+ if (!verbose) {
+ rc = rc1;
+ goto free_layout;
+ }
+ }
+ }
+
+ if (rc2 < 0)
+ rc = rc2;
+
+free_layout:
+ llapi_layout_free(layout);
+ llapi_lease_put(fd);
+close_fd:
+ close(fd);
+error:
+ return rc;
+}
+
+/**
+ * lfs_mirror_verify() - Parse and execute lfs mirror verify command.
+ * @argc: The count of lfs mirror verify command line arguments.
+ * @argv: Array of strings for lfs mirror verify command line arguments.
+ *
+ * This function parses lfs mirror verify command and verifies the
+ * specified mirrored file(s).
+ *
+ * Return: 0 on success or a negative error code on failure.
+ */
+static inline int lfs_mirror_verify(int argc, char **argv)
+{
+ __u16 mirror_ids[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
+ int ids_nr = 0;
+ int c;
+ int verbose = 0;
+ int rc = 0;
+ int rc1 = 0;
+ char cmd[PATH_MAX];
+
+ struct option long_opts[] = {
+ { .val = 'o', .name = "only", .has_arg = required_argument },
+ { .val = 'v', .name = "verbose", .has_arg = no_argument },
+ { .name = NULL } };
+
+ snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
+ progname = cmd;
+ while ((c = getopt_long(argc, argv, "o:v", long_opts, NULL)) >= 0) {
+ switch (c) {
+ case 'o':
+ rc = parse_mirror_ids(mirror_ids,
+ ARRAY_SIZE(mirror_ids),
+ optarg);
+ if (rc < 0) {
+ fprintf(stderr,
+ "%s: bad mirror ids '%s'.\n",
+ progname, optarg);
+ goto error;
+ }
+ ids_nr = rc;
+ if (ids_nr < 2) {
+ fprintf(stderr,
+ "%s: at least 2 mirror ids needed with '--only' option.\n",
+ progname);
+ rc = CMD_HELP;
+ goto error;
+ }
+ break;
+ case 'v':
+ verbose++;
+ break;
+ default:
+ fprintf(stderr, "%s: options '%s' unrecognized.\n",
+ progname, argv[optind - 1]);
+ rc = -EINVAL;
+ goto error;
+ }
+ }
+
+ if (argc == optind) {
+ fprintf(stderr, "%s: no file name given.\n", progname);
+ rc = CMD_HELP;
+ goto error;
+ }
+
+ if (ids_nr > 0 && argc > optind + 1) {
+ fprintf(stderr,
+ "%s: '--only' cannot be used upon multiple files.\n",
+ progname);
+ rc = CMD_HELP;
+ goto error;
+
+ }
+
+ if (ids_nr > 0) {
+ rc = verify_mirror_ids(argv[optind], mirror_ids, ids_nr);
+ if (rc < 0)
+ goto error;
+ }
+
+ rc = 0;
+ for (; optind < argc; optind++) {
+ rc1 = lfs_mirror_verify_file(argv[optind], mirror_ids, ids_nr,
+ verbose);
+ if (rc1 < 0)
+ rc = rc1;
+ }
+error:
+ return rc;
+}
+
+/**
* lfs_mirror() - Parse and execute lfs mirror commands.
* @argc: The count of lfs mirror command line arguments.
* @argv: Array of strings for lfs mirror command line arguments.
git://git.whamcloud.com / fs / lustre-release.git / blobdiff