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LU-9679 general: add missing spaces to folded strings.
[fs/lustre-release.git] / lustre / utils / lhsmtool_posix.c
index 28e3c49..4f933b4 100644 (file)
@@ -87,8 +87,9 @@ struct options {
        int                      o_shadow_tree;
        int                      o_verbose;
        int                      o_copy_xattrs;
-       int                      o_archive_cnt;
-       int                      o_archive_id[LL_HSM_MAX_ARCHIVE];
+       int                      o_archive_id_used;
+       int                      o_archive_id_cnt;
+       int                     *o_archive_id;
        int                      o_report_int;
        unsigned long long       o_bandwidth;
        size_t                   o_chunk_size;
@@ -250,25 +251,69 @@ static int ct_parseopts(int argc, char * const *argv)
                                                .has_arg = required_argument },
        { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
        { .name = NULL } };
-       int                      c, rc;
-       unsigned long long       value;
-       unsigned long long       unit;
+       unsigned long long value;
+       unsigned long long unit;
+       bool all_id = false;
+       int c, rc;
+       int i;
 
        optind = 0;
+
+       opt.o_archive_id_cnt = LL_HSM_ORIGIN_MAX_ARCHIVE;
+       opt.o_archive_id = malloc(opt.o_archive_id_cnt *
+                                 sizeof(*opt.o_archive_id));
+       if (opt.o_archive_id == NULL)
+               return -ENOMEM;
+repeat:
        while ((c = getopt_long(argc, argv, "A:b:c:f:hiMp:qru:v",
                                long_opts, NULL)) != -1) {
                switch (c) {
-               case 'A':
-                       if ((opt.o_archive_cnt >= LL_HSM_MAX_ARCHIVE) ||
-                           (atoi(optarg) >= LL_HSM_MAX_ARCHIVE)) {
-                               rc = -E2BIG;
-                               CT_ERROR(rc, "archive number must be less"
-                                        "than %zu", LL_HSM_MAX_ARCHIVE);
+               case 'A': {
+                       char *end = NULL;
+                       int val = strtol(optarg, &end, 10);
+
+                       if (*end != '\0') {
+                               rc = -EINVAL;
+                               CT_ERROR(rc, "invalid archive-id: '%s'",
+                                        optarg);
                                return rc;
                        }
-                       opt.o_archive_id[opt.o_archive_cnt] = atoi(optarg);
-                       opt.o_archive_cnt++;
+                       /* if archiveID is zero, any archiveID is accepted */
+                       if (all_id == true)
+                               goto repeat;
+
+                       if (val == 0) {
+                               free(opt.o_archive_id);
+                               opt.o_archive_id = NULL;
+                               opt.o_archive_id_cnt = 0;
+                               opt.o_archive_id_used = 0;
+                               all_id = true;
+                               CT_WARN("archive-id = 0 is found, any backend will be served\n");
+                               goto repeat;
+                       }
+
+                       /* skip the duplicated id */
+                       for (i = 0; i < opt.o_archive_id_used; i++) {
+                               if (opt.o_archive_id[i] == val)
+                                       goto repeat;
+                       }
+                       /* extend the space */
+                       if (opt.o_archive_id_used >= opt.o_archive_id_cnt) {
+                               int *tmp;
+
+                               opt.o_archive_id_cnt *= 2;
+                               tmp = realloc(opt.o_archive_id,
+                                             sizeof(*opt.o_archive_id) *
+                                             opt.o_archive_id_cnt);
+                               if (tmp == NULL)
+                                       return -ENOMEM;
+
+                               opt.o_archive_id = tmp;
+                       }
+
+                       opt.o_archive_id[opt.o_archive_id_used++] = val;
                        break;
+               }
                case 'b': /* -b and -c have both a number with unit as arg */
                case 'c':
                        unit = ONE_MB;
@@ -423,7 +468,7 @@ static int ct_mkdir_p(const char *path)
 
 static int ct_save_stripe(int src_fd, const char *src, const char *dst)
 {
-       char                     lov_file[PATH_MAX];
+       char                     lov_file[PATH_MAX + 8];
        char                     lov_buf[XATTR_SIZE_MAX];
        struct lov_user_md      *lum;
        int                      rc;
@@ -483,7 +528,7 @@ err_cleanup:
 
 static int ct_load_stripe(const char *src, void *lovea, size_t *lovea_size)
 {
-       char     lov_file[PATH_MAX];
+       char     lov_file[PATH_MAX + 4];
        int      rc;
        int      fd;
 
@@ -653,7 +698,8 @@ static int ct_copy_data(struct hsm_copyaction_private *hcp, const char *src,
                                        CT_TRACE("bandwith control: %lluB/s "
                                                 "excess=%llu sleep for "
                                                 "%lld.%09lds",
-                                                opt.o_bandwidth, excess,
+                                                (unsigned long long)opt.o_bandwidth,
+                                                (unsigned long long)excess,
                                                 (long long)delay.tv_sec,
                                                 delay.tv_nsec);
                                        last_bw_print = now;
@@ -886,7 +932,8 @@ static int ct_archive(const struct hsm_action_item *hai, const long hal_flags)
 {
        struct hsm_copyaction_private   *hcp = NULL;
        char                             src[PATH_MAX];
-       char                             dst[PATH_MAX] = "";
+       char                             dst[PATH_MAX + 4] = "";
+       char                             root[PATH_MAX] = "";
        int                              rc;
        int                              rcf = 0;
        bool                             rename_needed = false;
@@ -904,14 +951,16 @@ static int ct_archive(const struct hsm_action_item *hai, const long hal_flags)
         * destination = lustre FID
         */
        ct_path_lustre(src, sizeof(src), opt.o_mnt, &hai->hai_dfid);
-       ct_path_archive(dst, sizeof(dst), opt.o_hsm_root, &hai->hai_fid);
+       ct_path_archive(root, sizeof(root), opt.o_hsm_root, &hai->hai_fid);
        if (hai->hai_extent.length == -1) {
                /* whole file, write it to tmp location and atomically
                 * replace old archived file */
-               strlcat(dst, "_tmp", sizeof(dst));
+               snprintf(dst, sizeof(dst), "%s_tmp", root);
                /* we cannot rely on the same test because ct_copy_data()
                 * updates hai_extent.length */
                rename_needed = true;
+       } else {
+               snprintf(dst, sizeof(dst), "%s", root);
        }
 
        CT_TRACE("archiving '%s' to '%s'", src, dst);
@@ -993,8 +1042,8 @@ static int ct_archive(const struct hsm_action_item *hai, const long hal_flags)
        }
 
        if (rename_needed == true) {
-               char     tmp_src[PATH_MAX];
-               char     tmp_dst[PATH_MAX];
+               char     tmp_src[PATH_MAX + 8];
+               char     tmp_dst[PATH_MAX + 8];
 
                /* atomically replace old archived file */
                ct_path_archive(src, sizeof(src), opt.o_hsm_root,
@@ -1075,10 +1124,10 @@ static int ct_archive(const struct hsm_action_item *hai, const long hal_flags)
                                                 src);
                                        rcf = rcf ? rcf : -errno;
                                        goto fini_minor;
+                               }
                                /* unlink old symlink done */
                                CT_TRACE("remove old symlink '%s' pointing"
                                         " to '%s'", src, buf);
-                               }
                        } else {
                                /* symlink already ok */
                                CT_TRACE("symlink '%s' already pointing"
@@ -1242,7 +1291,7 @@ fini:
 static int ct_remove(const struct hsm_action_item *hai, const long hal_flags)
 {
        struct hsm_copyaction_private   *hcp = NULL;
-       char                             dst[PATH_MAX];
+       char                             dst[PATH_MAX], attr[PATH_MAX + 4];
        int                              rc;
 
        rc = ct_begin(&hcp, hai);
@@ -1266,13 +1315,18 @@ static int ct_remove(const struct hsm_action_item *hai, const long hal_flags)
                goto fini;
        }
 
-       strlcat(dst, ".lov", sizeof(dst));
-       rc = unlink(dst);
+       snprintf(attr, sizeof(attr), "%s.lov", dst);
+       rc = unlink(attr);
        if (rc < 0) {
                rc = -errno;
-               CT_ERROR(rc, "cannot unlink '%s'", dst);
+               CT_ERROR(rc, "cannot unlink '%s'", attr);
                err_minor++;
-               goto fini;
+
+               /* ignore the error when lov file does not exist. */
+               if (rc == -ENOENT)
+                       rc = 0;
+               else
+                       goto fini;
        }
 
 fini:
@@ -1412,7 +1466,8 @@ static int ct_import_one(const char *src, const char *dst)
                return 0;
 
        rc = llapi_hsm_import(dst,
-                             opt.o_archive_cnt ? opt.o_archive_id[0] : 0,
+                             opt.o_archive_id_used ?
+                             opt.o_archive_id[0] : 0,
                              &st, 0, 0, 0, 0, NULL, &fid);
        if (rc < 0) {
                CT_ERROR(rc, "cannot import '%s' from '%s'", dst, src);
@@ -1486,10 +1541,9 @@ static int ct_import_recurse(const char *relpath)
        if (relpath == NULL)
                return -EINVAL;
 
-       /* Is relpath a FID? In which case SFID should expand to three
-        * elements. */
-       rc = sscanf(relpath, SFID, RFID(&import_fid));
-       if (rc == 3)
+       /* Is relpath a FID? */
+       rc = llapi_fid_parse(relpath, &import_fid, NULL);
+       if (!rc)
                return ct_import_fid(&import_fid);
 
        srcpath = path_concat(opt.o_hsm_root, relpath);
@@ -1576,6 +1630,9 @@ static int ct_rebind_one(const struct lu_fid *old_fid,
        ct_path_archive(dst, sizeof(dst), opt.o_hsm_root, new_fid);
 
        if (!opt.o_dry_run) {
+               char src_attr[PATH_MAX + 4];
+               char dst_attr[PATH_MAX + 4];
+
                ct_mkdir_p(dst);
                if (rename(src, dst)) {
                        rc = -errno;
@@ -1583,10 +1640,11 @@ static int ct_rebind_one(const struct lu_fid *old_fid,
                        return -errno;
                }
                /* rename lov file */
-               strlcat(src, ".lov", sizeof(src));
-               strlcat(dst, ".lov", sizeof(dst));
-               if (rename(src, dst))
-                       CT_ERROR(errno, "cannot rename '%s' to '%s'", src, dst);
+               snprintf(src_attr, sizeof(src_attr), "%s.lov", src);
+               snprintf(dst_attr, sizeof(dst_attr), "%s.lov", dst);
+               if (rename(src_attr, dst_attr))
+                       CT_ERROR(errno, "cannot rename '%s' to '%s'",
+                                src_attr, dst_attr);
 
        }
        return 0;
@@ -1632,8 +1690,9 @@ static int ct_rebind_list(const char *list)
 
        /* each line consists of 2 FID */
        while ((r = getline(&line, &line_size, filp)) != -1) {
-               struct lu_fid   old_fid;
-               struct lu_fid   new_fid;
+               struct lu_fid old_fid;
+               struct lu_fid new_fid;
+               char *next_fid;
 
                /* Ignore empty and commented out ('#...') lines. */
                if (should_ignore_line(line))
@@ -1641,12 +1700,17 @@ static int ct_rebind_list(const char *list)
 
                nl++;
 
-               rc = sscanf(line, SFID" "SFID, RFID(&old_fid), RFID(&new_fid));
-               if (rc != 6 || !fid_is_file(&old_fid) ||
-                   !fid_is_file(&new_fid)) {
-                       CT_ERROR(EINVAL,
-                                "'%s' FID expected near '%s', line %u",
-                                list, line, nl);
+               rc = llapi_fid_parse(line, &old_fid, &next_fid);
+               if (rc)
+                       goto error;
+               rc = llapi_fid_parse(next_fid, &new_fid, NULL);
+               if (rc)
+                       goto error;
+               if (!fid_is_file(&old_fid) || !fid_is_file(&new_fid))
+                       rc = -EINVAL;
+               if (rc) {
+error:                 CT_ERROR(rc, "%s:%u: two FIDs expected in '%s'",
+                                list, nl, line);
                        err_major++;
                        continue;
                }
@@ -1670,23 +1734,25 @@ static int ct_rebind_list(const char *list)
 
 static int ct_rebind(void)
 {
-       int     rc;
+       int rc;
 
        if (opt.o_dst) {
                struct lu_fid old_fid;
                struct lu_fid new_fid;
 
-               if (sscanf(opt.o_src, SFID, RFID(&old_fid)) != 3 ||
-                   !fid_is_file(&old_fid)) {
+               rc = llapi_fid_parse(opt.o_src, &old_fid, NULL);
+               if (!rc && !fid_is_file(&old_fid))
                        rc = -EINVAL;
-                       CT_ERROR(rc, "'%s' invalid FID format", opt.o_src);
+               if (rc) {
+                       CT_ERROR(rc, "invalid source FID '%s'", opt.o_src);
                        return rc;
                }
 
-               if (sscanf(opt.o_dst, SFID, RFID(&new_fid)) != 3 ||
-                   !fid_is_file(&new_fid)) {
+               rc = llapi_fid_parse(opt.o_dst, &new_fid, NULL);
+               if (!rc && !fid_is_file(&new_fid))
                        rc = -EINVAL;
-                       CT_ERROR(rc, "'%s' invalid FID format", opt.o_dst);
+               if (rc) {
+                       CT_ERROR(rc, "invalid destination FID '%s'", opt.o_dst);
                        return rc;
                }
 
@@ -1752,7 +1818,7 @@ static int ct_max_sequence(void)
        __u64   seq = 0;
        __u16   subseq;
 
-       strlcpy(path, opt.o_hsm_root, sizeof(path));
+       snprintf(path, sizeof(path), "%s", opt.o_hsm_root);
        /* FID sequence is stored in top-level directory names:
         * hsm_root/16bits (high weight)/16 bits/16 bits/16 bits (low weight).
         */
@@ -1818,7 +1884,7 @@ static int ct_run(void)
        }
 
        rc = llapi_hsm_copytool_register(&ctdata, opt.o_mnt,
-                                        opt.o_archive_cnt,
+                                        opt.o_archive_id_used,
                                         opt.o_archive_id, 0);
        if (rc < 0) {
                CT_ERROR(rc, "cannot start copytool interface");
@@ -1951,6 +2017,12 @@ static int ct_cleanup(void)
                }
        }
 
+       if (opt.o_archive_id_cnt > 0) {
+               free(opt.o_archive_id);
+               opt.o_archive_id = NULL;
+               opt.o_archive_id_cnt = 0;
+       }
+
        return 0;
 }
 
@@ -1958,7 +2030,7 @@ int main(int argc, char **argv)
 {
        int     rc;
 
-       strlcpy(cmd_name, basename(argv[0]), sizeof(cmd_name));
+       snprintf(cmd_name, sizeof(cmd_name), "%s", basename(argv[0]));
        rc = ct_parseopts(argc, argv);
        if (rc < 0) {
                CT_WARN("try '%s --help' for more information", cmd_name);
@@ -1994,4 +2066,3 @@ error_cleanup:
 
        return -rc;
 }
-