X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Futils%2Fliblustreapi.c;h=dc989a7ce384f4e27be93ca47011e9a2d05425f3;hp=be8c44462a12724f53f9ae687f122791964d9aa1;hb=624fd0ca0832e92dd2f5486984b6c7f7397619ba;hpb=6cf36313b274dbf57ee4f6aee916a22c374f956b diff --git a/lustre/utils/liblustreapi.c b/lustre/utils/liblustreapi.c index be8c444..dc989a7 100644 --- a/lustre/utils/liblustreapi.c +++ b/lustre/utils/liblustreapi.c @@ -26,7 +26,7 @@ * 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. */ /* @@ -58,6 +58,7 @@ #include #include #include +#include #include #include #ifdef HAVE_LINUX_UNISTD_H @@ -260,7 +261,98 @@ int llapi_stripe_limit_check(unsigned long long stripe_size, int stripe_offset, return 0; } -static int poolpath(char *fsname, char *pathname, char *pool_pathname); +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; + + 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; +} + +/* + * 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; + + if ((fd = fopen(buffer, "r")) == NULL) + return -EINVAL; + + 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 long stripe_size, int stripe_offset, @@ -269,7 +361,40 @@ int llapi_file_open_pool(const char *name, int flags, int mode, 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; + + if (llapi_search_fsname(name, fsname)) { + llapi_err(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO, + "'%s' is not on a Lustre filesystem", name); + return -EINVAL; + } + + /* in case user gives the full pool name ., + * strip the fsname */ + ptr = strchr(pool_name, '.'); + if (ptr != NULL) { + *ptr = '\0'; + if (strcmp(pool_name, fsname) != 0) { + *ptr = '.'; + llapi_err(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO, + "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 */ + if ((rc = llapi_search_ost(fsname, pool_name, NULL)) < 1) { + llapi_err(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO, + "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) { @@ -295,19 +420,7 @@ int llapi_file_open_pool(const char *name, int flags, int mode, 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 ., skip - * the fsname */ if (pool_name != NULL) { - ptr = strchr(pool_name, '.'); - if (ptr != NULL) { - strncpy(fsname, pool_name, ptr - pool_name); - *ptr = '\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 */ @@ -380,13 +493,16 @@ int llapi_file_create_pool(const char *name, unsigned long long stripe_size, #define WANT_PATH 0x1 #define WANT_FSNAME 0x2 #define WANT_FD 0x4 -static int get_root_path(int want, char *fsname, int *outfd, char *path) +#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]; + char buf[PATH_MAX], mntdir[PATH_MAX]; char *ptr; FILE *fp; - int fd; + int idx = 0, len = 0, mntlen, fd; int rc = -ENODEV; /* get the mount point */ @@ -404,27 +520,47 @@ static int get_root_path(int want, char *fsname, int *outfd, char *path) 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) { + if (!ptr && !len) { rc = -EINVAL; break; } ptr++; - /* If path was specified and matches, store the fsname */ - if ((want & WANT_FSNAME) && (strcmp(mnt.mnt_dir, path) == 0)) - strcpy(fsname, ptr); - /* Else check the fsname for a match */ - else if (strcmp(ptr, fsname) != 0) + /* Check the fsname for a match, if given */ + if (!(want & WANT_FSNAME) && fsname != NULL && + (strlen(fsname) > 0) && (strcmp(ptr, fsname) != 0)) continue; - /* Found it */ - rc = 0; - if (want & WANT_PATH) - strcpy(path, mnt.mnt_dir); + /* 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; + } + } + endmntent(fp); + + /* Found it */ + if (rc == 0) { + if ((want & WANT_PATH) && path != NULL) + strcpy(path, mntdir); if (want & WANT_FD) { - fd = open(mnt.mnt_dir, - O_RDONLY | O_DIRECTORY | O_NONBLOCK); + fd = open(mntdir, O_RDONLY | O_DIRECTORY | O_NONBLOCK); if (fd < 0) { perror("open"); rc = -errno; @@ -432,19 +568,80 @@ static int get_root_path(int want, char *fsname, int *outfd, char *path) *outfd = fd; } } - break; - } - endmntent(fp); - if (rc) + } else if (want & WANT_ERROR) llapi_err(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO, "can't find fs root for '%s': %d", (want & WANT_PATH) ? fsname : path, rc); return rc; } +/* + * 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. + */ +int llapi_search_mounts(const char *pathname, int index, char *mntdir, + char *fsname) +{ + int want = WANT_PATH, idx = -1; + + 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) { - return get_root_path(WANT_FSNAME, fsname, NULL, (char *)pathname); + 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) { + llapi_err(LLAPI_MSG_ERROR, + "pathname '%s' cannot expand", + pathname); + return -errno; + } + } + } + rc = get_root_path(WANT_FSNAME | WANT_ERROR, fsname, NULL, path, -1); + free(path); + return rc; } /* return the first file matching this pattern */ @@ -477,7 +674,7 @@ static int poolpath(char *fsname, char *pathname, char *pool_pathname) char buffer[PATH_MAX]; if (fsname == NULL) { - rc = get_root_path(WANT_FSNAME, buffer, NULL, pathname); + rc = llapi_search_fsname(pathname, buffer); if (rc != 0) return rc; fsname = buffer; @@ -498,7 +695,7 @@ static int poolpath(char *fsname, char *pathname, char *pool_pathname) /** * Get the list of pool members. - * \param poolname string of format . + * \param poolname string of format \.\ * \param members caller-allocated array of char* * \param list_size size of the members array * \param buffer caller-allocated buffer for storing OST names @@ -735,6 +932,205 @@ static void find_param_fini(struct find_param *param) 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; +} + +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; +} + +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", + __func__, path); + return ret; + } + } else if (errno == ENOENT) { + llapi_err(LLAPI_MSG_WARN, + "warning: %s: %s does not exist", + __func__, path); + return -ENOENT; + } else { + llapi_err(LLAPI_MSG_ERROR, + "error: %s: IOC_MDC_GETFILEINFO failed for %s", + __func__, path); + return ret; + } + } + + return 0; +} + +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'", + __func__, 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; + + /* 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(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(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) { + llapi_err(LLAPI_MSG_ERROR, "Path name '%s' is too long", path); + return -EINVAL; + } + + buf = (char *)malloc(PATH_MAX + 1); + if (!buf) + return -ENOMEM; + + ret = common_param_init(param); + if (ret) + goto out; + param->depth = 0; + + strncpy(buf, path, PATH_MAX + 1); + 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); @@ -826,6 +1222,29 @@ int llapi_get_obd_count(char *mnt, int *count, int is_mdt) 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) @@ -836,6 +1255,9 @@ static int setup_obd_uuid(DIR *dir, char *dname, struct find_param *param) FILE *fp; int rc = 0, index; + if (param->got_uuids) + return rc; + /* Get the lov name */ rc = llapi_file_fget_lov_uuid(dirfd(dir), &lov_uuid); if (rc) { @@ -869,8 +1291,7 @@ static int setup_obd_uuid(DIR *dir, char *dname, struct find_param *param) 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; } @@ -883,12 +1304,11 @@ static int setup_obd_uuid(DIR *dir, char *dname, struct find_param *param) 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); @@ -927,66 +1347,280 @@ retry_get_uuids: return ret; } - param->obdindexes = malloc(param->num_obds * sizeof(param->obdindex)); - if (param->obdindexes == NULL) - return -ENOMEM; + param->obdindexes = malloc(param->num_obds * sizeof(param->obdindex)); + if (param->obdindexes == NULL) + return -ENOMEM; + + for (obdnum = 0; obdnum < param->num_obds; obdnum++) { + for (i = 0; i < obdcount; i++) { + if (llapi_uuid_match(uuids[i].uuid, + param->obduuid[obdnum].uuid)) { + param->obdindexes[obdnum] = i; + obd_valid++; + break; + } + } + if (i >= obdcount) { + param->obdindexes[obdnum] = OBD_NOT_FOUND; + llapi_err_noerrno(LLAPI_MSG_ERROR, + "error: %s: unknown obduuid: %s", + __func__, + param->obduuid[obdnum].uuid); + ret = -EINVAL; + } + } + + if (obd_valid == 0) + param->obdindex = OBD_NOT_FOUND; + else + param->obdindex = obd_valid; + + 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) { + if ((rc = llapi_search_fsname(pathname, buffer)) != 0) + return rc; + fsname = buffer; + } + + snprintf(pattern, sizeof(pattern), "/proc/fs/lustre/lov/%s-clilov-*", + fsname); + + if ((rc = first_match(pattern, buffer)) != 0) + return rc; + + strncpy(clilovpath, buffer, sizeof(buffer)); + + return 0; +} + +/* + * 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) +{ + + FILE *f; + char line[PATH_MAX + 1]; + int rc = 0; + + if ((f = fopen(fpath, "r")) == NULL) { + llapi_err(LLAPI_MSG_ERROR, "Cannot open '%s'", fpath); + return errno; + } + + if (fgets(line, sizeof(line), f) != NULL) { + *attr = atoi(line); + } else { + llapi_err(LLAPI_MSG_ERROR, "Cannot read from '%s'", fpath); + rc = 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]; + + if ((rc = clilovpath(fsname, pathname, dpath)) != 0) + return rc; + + if (scount) { + snprintf(fpath, PATH_MAX, "%s/stripecount", dpath); + if ((rc = sattr_read_attr(fpath, scount)) != 0) + return rc; + } + + if (ssize) { + snprintf(fpath, PATH_MAX, "%s/stripesize", dpath); + if ((rc = sattr_read_attr(fpath, ssize)) != 0) + return rc; + } - 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; - } - } - if (i == obdcount) - param->obdindexes[obdnum] = OBD_NOT_FOUND; + if (soffset) { + snprintf(fpath, PATH_MAX, "%s/stripeoffset", dpath); + if ((rc = sattr_read_attr(fpath, soffset)) != 0) + return rc; } - if (obd_valid == 0) - param->obdindex = OBD_NOT_FOUND; + 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) + llapi_search_fsname(pathname, fsname_buf); else - param->obdindex = obd_valid; + 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. + */ + if ((rc = sattr_get_defaults(fsname_buf, NULL, &tmp[0], + &tmp[1], &tmp[2])) != 0) + return rc; - param->got_uuids = 1; + 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, - int is_dir, int verbose, int quiet, - char *pool_name) + 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'; - if (verbose && path) + 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); } if (verbose & VERBOSE_COUNT) { - if (!quiet) + if (verbose & ~VERBOSE_COUNT) llapi_printf(LLAPI_MSG_NORMAL, "%sstripe_count: ", prefix); - llapi_printf(LLAPI_MSG_NORMAL, "%u%c", - (int)lum->lmm_stripe_count, nl); + if (is_dir) { + if (!raw && lum->lmm_stripe_count == 0) { + unsigned int scount; + if (sattr_cache_get_defaults(NULL, path, + &scount, NULL, + NULL) == 0) + llapi_printf(LLAPI_MSG_NORMAL, "%u%c", + scount, nl); + else + llapi_err(LLAPI_MSG_ERROR, + "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); + } } if (verbose & VERBOSE_SIZE) { - if (!quiet) + if (verbose & ~VERBOSE_SIZE) llapi_printf(LLAPI_MSG_NORMAL, "%sstripe_size: ", prefix); - llapi_printf(LLAPI_MSG_NORMAL, "%u%c", lum->lmm_stripe_size, - nl); + if (is_dir && !raw && lum->lmm_stripe_size == 0) { + unsigned int ssize; + if (sattr_cache_get_defaults(NULL, path, NULL, &ssize, + NULL) == 0) + llapi_printf(LLAPI_MSG_NORMAL, "%u%c", ssize, + nl); + else + llapi_err(LLAPI_MSG_ERROR, + "Cannot determine default" + " stripe size."); + } else { + llapi_printf(LLAPI_MSG_NORMAL, "%u%c", + lum->lmm_stripe_size, nl); + } } if ((verbose & VERBOSE_DETAIL) && !is_dir) { @@ -995,70 +1629,59 @@ static void lov_dump_user_lmm_header(struct lov_user_md *lum, char *path, } if (verbose & VERBOSE_OFFSET) { - if (!quiet) - llapi_printf(LLAPI_MSG_NORMAL, "%sstripe_offset: ", + if (verbose & ~VERBOSE_OFFSET) + llapi_printf(LLAPI_MSG_NORMAL, "%sstripe_offset: ", prefix); - llapi_printf(LLAPI_MSG_NORMAL, "%u%c", - lum->lmm_objects[0].l_ost_idx, nl); + 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)) - llapi_printf(LLAPI_MSG_NORMAL, "pool: %s%c", pool_name, 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) + if (is_dir && (verbose != VERBOSE_OBJID)) llapi_printf(LLAPI_MSG_NORMAL, "\n"); } 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) + int obdindex, int depth, int header, int raw) { - int i, obdstripe = 0; + int i, obdstripe = (obdindex != OBD_NOT_FOUND) ? 0 : 1; - if (obdindex != OBD_NOT_FOUND) { + if (!obdstripe) { 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; - } - - /* 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; - } - /* maintain original behavior */ - if (!header) - header |= VERBOSE_ALL; - lov_dump_user_lmm_header(lum, path, is_dir, header, - quiet, pool_name); - } - return; } - if (header && (obdstripe == 1)) - lov_dump_user_lmm_header(lum, NULL, is_dir, header, quiet, - pool_name); + if (obdstripe == 1) + lov_dump_user_lmm_header(lum, path, objects, is_dir, header, + depth, raw, pool_name); - if (body) { - if ((!quiet) && (obdstripe == 1)) + if (!is_dir && (header & VERBOSE_OBJID)) { + if (obdstripe == 1) llapi_printf(LLAPI_MSG_NORMAL, "\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_gr; + 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\n", @@ -1069,68 +1692,6 @@ void lov_dump_user_lmm_v1v3(struct lov_user_md *lum, char *pool_name, } } -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) -{ - struct lov_user_md_join *lumj = (struct lov_user_md_join *)lum; - int i, obdstripe = 0; - - 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); - obdstripe = 1; - break; - } - } - } else { - if (!quiet) - llapi_printf(LLAPI_MSG_NORMAL, "%s\n", path); - obdstripe = 1; - } - - if (header && obdstripe == 1) { - lov_dump_user_lmm_header(lum, NULL, 0, header, quiet, NULL); - - 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) - 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) - 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"); - } - } - llapi_printf(LLAPI_MSG_NORMAL, "\n"); - } -} - void llapi_lov_dump_user_lmm(struct find_param *param, char *path, int is_dir) { @@ -1139,15 +1700,8 @@ void llapi_lov_dump_user_lmm(struct find_param *param, 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]; @@ -1159,17 +1713,15 @@ void llapi_lov_dump_user_lmm(struct find_param *param, 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; } } @@ -1242,168 +1794,6 @@ int llapi_file_lookup(int dirfd, const char *name) 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; - - /* 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(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; -} - /* Check if the value matches 1 of the given criteria (e.g. --atime +/-N). * @mds indicates if this is MDS timestamps and there are attributes on OSTs. * @@ -1424,28 +1814,26 @@ err: * 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) + int negopt, unsigned long long margin, int mds) { + int ret = -1; + if (sign > 0) { - if (file < limit) - return mds ? 0 : 1; - } - - if (sign == 0) { - if (file <= limit && file + margin > limit) - return mds ? 0 : 1; - if (file + margin <= limit) - return mds ? 0 : -1; - } - - if (sign < 0) { - if (file > limit) - return 1; - if (mds) - return 0; + if (file <= limit) + 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) + 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). @@ -1463,7 +1851,8 @@ static int find_time_check(lstat_t *st, struct find_param *param, int mds) /* 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; @@ -1471,7 +1860,8 @@ static int find_time_check(lstat_t *st, struct find_param *param, int mds) 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; @@ -1483,7 +1873,8 @@ static int find_time_check(lstat_t *st, struct find_param *param, int mds) 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; @@ -1536,7 +1927,7 @@ static int cb_find_init(char *path, DIR *parent, DIR *dir, /* 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) + param->check_size) decision = 0; ret = 0; @@ -1566,17 +1957,17 @@ static int cb_find_init(char *path, DIR *parent, DIR *dir, if (ret) { llapi_err(LLAPI_MSG_ERROR, "error: %s: lstat failed for %s", - __FUNCTION__, path); + __func__, path); return ret; } } else if (errno == ENOENT) { llapi_err(LLAPI_MSG_WARN, "warning: %s: %s does not exist", - __FUNCTION__, path); + __func__, path); goto decided; } else { llapi_err(LLAPI_MSG_ERROR,"error: %s: %s failed for %s", - __FUNCTION__, dir ? "LL_IOC_MDC_GETINFO" : + __func__, dir ? "LL_IOC_MDC_GETINFO" : "IOC_MDC_GETFILEINFO", path); return ret; } @@ -1646,13 +2037,19 @@ static int cb_find_init(char *path, DIR *parent, DIR *dir, 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) + lmm_objects[i].l_ost_idx) { + if (param->exclude_obd) + goto decided; goto obd_matches; + } } } - if (i == param->lmd->lmd_lmm.lmm_stripe_count) + if (i == param->lmd->lmd_lmm.lmm_stripe_count) { + if (param->exclude_obd) + goto obd_matches; goto decided; + } } } @@ -1710,7 +2107,8 @@ obd_matches: 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)) { + param->lmd->lmd_lmm.lmm_stripe_count && + (param->check_size ||param->atime || param->mtime || param->ctime)) { 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 @@ -1747,12 +2145,12 @@ obd_matches: if (errno == ENOENT) { llapi_err(LLAPI_MSG_ERROR, "warning: %s: %s does not exist", - __FUNCTION__, path); + __func__, path); goto decided; } else { llapi_err(LLAPI_MSG_ERROR, "%s: IOC_LOV_GETINFO on %s failed", - __FUNCTION__, path); + __func__, path); return ret; } } @@ -1763,10 +2161,10 @@ obd_matches: goto decided; } - 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) { @@ -1786,44 +2184,82 @@ decided: 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); + + if (d) { + ret = llapi_file_fget_mdtidx(dirfd(d), &mdtidx); + } else if (parent) { + int fd; - buf = (char *)malloc(PATH_MAX + 1); - if (!buf) - return -ENOMEM; + fd = open(path, O_RDONLY); + if (fd > 0) { + ret = llapi_file_fget_mdtidx(fd, &mdtidx); + close(fd); + } else { + ret = fd; + } + } - ret = common_param_init(param); if (ret) { - free(buf); + if (errno == ENODATA) { + 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?", + __func__, path); + } else if (errno == ENOENT) { + llapi_err(LLAPI_MSG_WARN, + "warning: %s: %s does not exist", + __func__, path); + goto out; + } else { + llapi_err(LLAPI_MSG_ERROR, + "error: %s: LL_IOC_GET_MDTIDX failed for %s", + __func__, path); + } return ret; } - param->depth = 0; + if (param->quiet) + llapi_printf(LLAPI_MSG_NORMAL, "%d\n", mdtidx); + else + llapi_printf(LLAPI_MSG_NORMAL, "%s MDT index: %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, @@ -1834,8 +2270,8 @@ 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; @@ -1849,36 +2285,56 @@ static int cb_getstripe(char *path, DIR *parent, DIR *d, void *data, 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); + __func__, path); } else if (errno == ENOENT) { llapi_err(LLAPI_MSG_WARN, "warning: %s: %s does not exist", - __FUNCTION__, path); + __func__, path); goto out; } else { llapi_err(LLAPI_MSG_ERROR, "error: %s: %s failed for %s", - __FUNCTION__, d ? "LL_IOC_LOV_GETSTRIPE" : + __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->get_mdt_index) + llapi_lov_dump_user_lmm(param, path, d ? 1 : 0); + out: /* Do not get down anymore? */ if (param->depth == param->maxdepth) @@ -1890,34 +2346,9 @@ out: 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->get_mdt_index ? + cb_get_mdt_index : cb_getstripe, + cb_common_fini, param); } int llapi_obd_statfs(char *path, __u32 type, __u32 index, @@ -1952,7 +2383,7 @@ int llapi_obd_statfs(char *path, __u32 type, __u32 index, if (fd < 0) { rc = errno ? -errno : -EBADF; llapi_err(LLAPI_MSG_ERROR, "error: %s: opening '%s'", - __FUNCTION__, path); + __func__, path); return rc; } rc = ioctl(fd, IOC_OBD_STATFS, (void *)rawbuf); @@ -2203,7 +2634,7 @@ static int cb_quotachown(char *path, DIR *parent, DIR *d, void *data, } else if (errno == ENOENT) { llapi_err(LLAPI_MSG_ERROR, "warning: %s: %s does not exist", - __FUNCTION__, path); + __func__, path); rc = 0; } else if (errno != EISDIR) { rc = errno; @@ -2234,35 +2665,13 @@ static int cb_quotachown(char *path, DIR *parent, DIR *d, void *data, 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; 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 @@ -2558,6 +2967,8 @@ int llapi_ls(int argc, char *argv[]) /* 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) { @@ -2583,65 +2994,122 @@ static int get_mdtname(char *name, char *format, char *buf) return sprintf(buf, format, name, suffix); } +/** 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(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO, + "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_err(LLAPI_MSG_ERROR, "ioctl %d err %d", opc, rc); + + close(fd); + return rc; +} + /****** Changelog API ********/ + +static int changelog_ioctl(const char *mdtname, int opc, int id, + long long recno, int flags) +{ + struct ioc_changelog data; + int *idx; + + data.icc_id = id; + data.icc_recno = recno; + data.icc_flags = flags; + idx = (int *)(&data.icc_mdtindex); + + return root_ioctl(mdtname, opc, &data, idx, WANT_ERROR); +} + #define CHANGELOG_PRIV_MAGIC 0xCA8E1080 struct changelog_private { int magic; - int fd; int flags; + lustre_kernelcomm kuc; }; /** Start reading from a changelog * @param priv Opaque private control structure - * @param flags Start flags (e.g. follow) + * @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; - char path[256]; - char mdtname[20]; - int rc, fd; - - if (device[0] == '/') - rc = get_root_path(WANT_FSNAME, mdtname, NULL, (char *)device); - else - strncpy(mdtname, device, sizeof(mdtname)); - - /* Use either the mdd changelog (preferred) or a client mdc changelog */ - if (get_mdtname(mdtname, - "/proc/fs/lustre/md[cd]/%s%s{,-mdc-*}/changelog", - path) < 0) - return -EINVAL; - rc = first_match(path, path); - if (rc) - return rc; - - if ((fd = open(path, O_RDONLY)) < 0) { - llapi_err(LLAPI_MSG_ERROR, "error: can't open |%s|\n", path); - return -errno; - } - - rc = lseek(fd, (off_t)startrec, SEEK_SET); - if (rc < 0) { - llapi_err(LLAPI_MSG_ERROR, "can't seek rc=%d\n", rc); - return -errno; - } + int rc; - cp = malloc(sizeof(*cp)); - if (cp == NULL) { - close(fd); + /* Set up the receiver control struct */ + cp = calloc(1, sizeof(*cp)); + if (cp == NULL) return -ENOMEM; - } cp->magic = CHANGELOG_PRIV_MAGIC; - cp->fd = fd; cp->flags = flags; + + /* 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) { + /* frees and clears priv */ + llapi_changelog_fini(priv); + return rc; + } + return 0; + +out_free: + free(cp); + return rc; } /** Finish reading from a changelog */ @@ -2652,22 +3120,12 @@ int llapi_changelog_fini(void **priv) if (!cp || (cp->magic != CHANGELOG_PRIV_MAGIC)) return -EINVAL; - close(cp->fd); + libcfs_ukuc_stop(&cp->kuc); free(cp); *priv = NULL; return 0; } -static int pollwait(int fd) { - struct pollfd pfds[1]; - int rc; - - pfds[0].fd = fd; - pfds[0].events = POLLIN; - rc = poll(pfds, 1, -1); - return rc < 0 ? -errno : rc; -} - /** Read the next changelog entry * @param priv Opaque private control structure * @param rech Changelog record handle; record will be allocated here @@ -2678,49 +3136,68 @@ static int pollwait(int fd) { int llapi_changelog_recv(void *priv, struct changelog_rec **rech) { struct changelog_private *cp = (struct changelog_private *)priv; - struct changelog_rec rec, *recp; + 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; -readrec: - /* Read in the rec to get the namelen */ - rc = read(cp->fd, &rec, sizeof(rec)); +repeat: + rc = libcfs_ukuc_msg_get(&cp->kuc, (char *)kuch, + CR_MAXSIZE + sizeof(*kuch), + KUC_TRANSPORT_CHANGELOG); if (rc < 0) - return -errno; - if (rc == 0) { - if (cp->flags && CHANGELOG_FLAG_FOLLOW) { - rc = pollwait(cp->fd); - if (rc < 0) - return rc; - goto readrec; - } - return 1; + goto out_free; + + if ((kuch->kuc_transport != KUC_TRANSPORT_CHANGELOG) || + ((kuch->kuc_msgtype != CL_RECORD) && + (kuch->kuc_msgtype != CL_EOF))) { + llapi_err(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO, + "Unknown changelog message type %d:%d\n", + kuch->kuc_transport, kuch->kuc_msgtype); + rc = -EPROTO; + goto out_free; } - recp = malloc(sizeof(rec) + rec.cr_namelen); - if (recp == NULL) - return -ENOMEM; - memcpy(recp, &rec, sizeof(rec)); - rc = read(cp->fd, recp->cr_name, rec.cr_namelen); - if (rc < 0) { - free(recp); - llapi_err(LLAPI_MSG_ERROR, "Can't read entire filename"); - return -errno; + if (kuch->kuc_msgtype == CL_EOF) { + if (cp->flags & CHANGELOG_FLAG_FOLLOW) { + /* Ignore EOFs */ + goto repeat; + } else { + rc = 1; + goto out_free; + } } - *rech = recp; + /* Our message is a changelog_rec. Use pointer math to skip + * kuch_hdr and point directly to the message payload. + */ + *rech = (struct changelog_rec *)(kuch + 1); + return 0; + +out_free: + *rech = NULL; + free(kuch); + return rc; } /** Release the changelog record when done with it. */ int llapi_changelog_free(struct changelog_rec **rech) { - if (*rech) - free(*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; } @@ -2728,10 +3205,7 @@ int llapi_changelog_free(struct changelog_rec **rech) int llapi_changelog_clear(const char *mdtname, const char *idstr, long long endrec) { - struct ioc_changelog_clear data; - char fsname[17]; - char *ptr; - int id, fd, index, rc; + int id; if (endrec < 0) { llapi_err(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO, @@ -2748,43 +3222,15 @@ int llapi_changelog_clear(const char *mdtname, const char *idstr, return -EINVAL; } - /* Take path, fsname, or MDTNAME. Assume MDT0000 in the former cases */ - if (mdtname[0] == '/') { - index = 0; - fd = open(mdtname, O_RDONLY | O_DIRECTORY | O_NONBLOCK); - rc = fd < 0 ? -errno : 0; - } 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, fsname, &fd, NULL); - } - if (rc < 0) { - llapi_err(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO, - "Can't open %s: %d\n", mdtname, rc); - return rc; - } - - data.icc_mdtindex = index; - data.icc_id = id; - data.icc_recno = endrec; - rc = ioctl(fd, OBD_IOC_CHANGELOG_CLEAR, &data); - if (rc) - llapi_err(LLAPI_MSG_ERROR, "ioctl err %d", rc); - - close(fd); - return rc; + 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) { - char path[PATH_MAX]; struct lu_fid fid; struct getinfo_fid2path *gf; - int fd, rc; + int rc; while (*fidstr == '[') fidstr++; @@ -2797,27 +3243,19 @@ int llapi_fid2path(const char *device, const char *fidstr, char *buf, return -EINVAL; } - /* Take path or fsname */ - if (device[0] == '/') { - strcpy(path, device); - } else { - rc = get_root_path(WANT_PATH, (char *)device, NULL, path); - if (rc < 0) - return rc; - } - sprintf(path, "%s/%s/fid/%s", path, dot_lustre_name, fidstr); - fd = open(path, O_RDONLY | O_NONBLOCK); - if (fd < 0) - return -errno; - 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; - rc = ioctl(fd, OBD_IOC_FID2PATH, gf); + + /* Take path or fsname */ + rc = root_ioctl(device, OBD_IOC_FID2PATH, gf, NULL, 0); if (rc) { - llapi_err(LLAPI_MSG_ERROR, "ioctl err %d", rc); + if (rc != -ENOENT) + llapi_err(LLAPI_MSG_ERROR, "ioctl err %d", rc); } else { memcpy(buf, gf->gf_path, gf->gf_pathlen); *recno = gf->gf_recno; @@ -2825,19 +3263,38 @@ int llapi_fid2path(const char *device, const char *fidstr, char *buf, } free(gf); - close(fd); 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; - fd = open(path, O_RDONLY); - if (fd < 0) + memset(fid, 0, sizeof(*fid)); + fd = open(path, O_RDONLY | O_NONBLOCK | O_NOFOLLOW); + if (fd < 0) { + if (errno == ELOOP) /* symbolic link */ + return path2fid_from_lma(path, fid); return -errno; + } - rc = ioctl(fd, LL_IOC_PATH2FID, fid); + rc = ioctl(fd, LL_IOC_PATH2FID, fid) < 0 ? -errno : 0; + if (rc == -EINVAL) /* char special device */ + rc = path2fid_from_lma(path, fid); close(fd); return rc; @@ -2847,42 +3304,68 @@ int llapi_path2fid(const char *path, lustre_fid *fid) #define CT_PRIV_MAGIC 0xC0BE2001 struct copytool_private { int magic; - lustre_netlink lnl; - int archive_num_count; - int archive_nums[0]; + char *fsname; + lustre_kernelcomm kuc; + __u32 archives; }; #include /** Register a copytool - * @param priv Opaque private control structure + * @param[out] priv Opaque private control structure + * @param fsname Lustre filesystem * @param flags Open flags, currently unused (e.g. O_NONBLOCK) - * @param archive_nums Which archive numbers this copytool is responsible for + * @param archive_count + * @param archives Which archive numbers this copytool is responsible for */ -int llapi_copytool_start(void **priv, int flags, int archive_num_count, - int *archive_nums) +int llapi_copytool_start(void **priv, char *fsname, int flags, + int archive_count, int *archives) { struct copytool_private *ct; int rc; - if (archive_num_count > 0 && archive_nums == NULL) { + if (archive_count > 0 && archives == NULL) { llapi_err(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO, "NULL archive numbers"); return -EINVAL; } - ct = malloc(sizeof(*ct) + - archive_num_count * sizeof(ct->archive_nums[0])); + 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->archive_num_count = archive_num_count; - if (ct->archive_num_count > 0) - memcpy(ct->archive_nums, archive_nums, archive_num_count * - sizeof(ct->archive_nums[0])); + ct->archives = 0; + for (rc = 0; rc < archive_count; rc++) { + if (archives[rc] > sizeof(ct->archives)) { + llapi_err(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO, + "Maximum of %d archives supported", + sizeof(ct->archives)); + goto out_err; + } + ct->archives |= 1 << archives[rc]; + } + /* 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; - rc = libcfs_ulnl_start(&ct->lnl, LNL_GRP_HSM); + /* 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; @@ -2890,6 +3373,8 @@ int llapi_copytool_start(void **priv, int flags, int archive_num_count, return 0; out_err: + if (ct->fsname) + free(ct->fsname); free(ct); return rc; } @@ -2902,7 +3387,14 @@ int llapi_copytool_fini(void **priv) if (!ct || (ct->magic != CT_PRIV_MAGIC)) return -EINVAL; - libcfs_ulnl_stop(&ct->lnl); + /* 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; @@ -2918,7 +3410,7 @@ int llapi_copytool_fini(void **priv) int llapi_copytool_recv(void *priv, struct hsm_action_list **halh, int *msgsize) { struct copytool_private *ct = (struct copytool_private *)priv; - struct lnl_hdr *lnlh; + struct kuc_hdr *kuch; struct hsm_action_list *hal; int rc = 0; @@ -2927,64 +3419,107 @@ int llapi_copytool_recv(void *priv, struct hsm_action_list **halh, int *msgsize) if (halh == NULL || msgsize == NULL) return -EINVAL; - rc = libcfs_ulnl_msg_get(&ct->lnl, HAL_MAXSIZE, - LNL_TRANSPORT_HSM, &lnlh); + 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) - return rc; + goto out_free; /* Handle generic messages */ - if (lnlh->lnl_transport == LNL_TRANSPORT_GENERIC && - lnlh->lnl_msgtype == LNL_MSG_SHUTDOWN) { + if (kuch->kuc_transport == KUC_TRANSPORT_GENERIC && + kuch->kuc_msgtype == KUC_MSG_SHUTDOWN) { rc = -ESHUTDOWN; goto out_free; } - if (lnlh->lnl_transport != LNL_TRANSPORT_HSM || - lnlh->lnl_msgtype != HMT_ACTION_LIST) { + if (kuch->kuc_transport != KUC_TRANSPORT_HSM || + kuch->kuc_msgtype != HMT_ACTION_LIST) { llapi_err(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO, "Unknown HSM message type %d:%d\n", - lnlh->lnl_transport, lnlh->lnl_msgtype); + kuch->kuc_transport, kuch->kuc_msgtype); rc = -EPROTO; goto out_free; } - /* Our message is an hsm_action_list */ - - hal = (struct hsm_action_list *)(lnlh + 1); + /* 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 # */ - for (rc = 0; rc < ct->archive_num_count; rc++) { - if (hal->hal_archive_num == ct->archive_nums[rc]) - break; - } - if (rc >= ct->archive_num_count) { - CDEBUG(D_INFO, "This copytool does not service archive #%d, " - "ignoring this request.\n", hal->hal_archive_num); + if (((1 << hal->hal_archive_num) & ct->archives) == 0) { + llapi_err(LLAPI_MSG_INFO | LLAPI_MSG_NO_ERRNO, + "Ignoring request for archive #%d (bitmask %#x)\n", + hal->hal_archive_num, ct->archives); rc = 0; goto out_free; } *halh = hal; - *msgsize = lnlh->lnl_msglen - sizeof(*lnlh); + *msgsize = kuch->kuc_msglen - sizeof(*kuch); return 0; out_free: - libcfs_ulnl_msg_free(&lnlh); *halh = NULL; *msgsize = 0; + free(kuch); return rc; } /** Release the action list when done with it. */ int llapi_copytool_free(struct hsm_action_list **hal) { - if (*hal) { - struct lnl_hdr *lnlh = (struct lnl_hdr *)*hal - 1; - libcfs_ulnl_msg_free(&lnlh); + /* Reuse the llapi_changelog_free function */ + return llapi_changelog_free((struct changelog_rec **)hal); +} + +int llapi_get_connect_flags(const char *mnt, __u64 *flags) +{ + DIR *root; + int rc; + + root = opendir(mnt); + if (!root) { + llapi_err(LLAPI_MSG_ERROR, "open %s failed", mnt); + return -1; } - *hal = NULL; - return 0; + + rc = ioctl(dirfd(root), LL_IOC_GET_CONNECT_FLAGS, flags); + closedir(root); + if (rc < 0) + llapi_err(LLAPI_MSG_ERROR, + "ioctl on %s for getting connect flags failed", mnt); + 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; + 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); + *version = data->ioc_bulk; + return 0; +}