/* Copyright (c) 2010 Gluster, Inc. This file is part of GlusterFS. GlusterFS is free software; you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. GlusterFS is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program. If not, see . */ #include "fuse-bridge.h" xlator_t * fuse_state_subvol (fuse_state_t *state) { xlator_t *subvol = NULL; if (!state) return NULL; if (state->loc.inode) subvol = state->loc.inode->table->xl; if (state->fd) subvol = state->fd->inode->table->xl; return subvol; } xlator_t * fuse_active_subvol (xlator_t *fuse) { fuse_private_t *priv = NULL; priv = fuse->private; return priv->active_subvol; } static void fuse_resolve_wipe (gf_resolve_t *resolve) { struct gf_resolve_comp *comp = NULL; if (resolve->path) GF_FREE ((void *)resolve->path); if (resolve->bname) GF_FREE ((void *)resolve->bname); if (resolve->resolved) GF_FREE ((void *)resolve->resolved); loc_wipe (&resolve->deep_loc); comp = resolve->components; if (comp) { /* int i = 0; for (i = 0; comp[i].basename; i++) { if (comp[i].inode) inode_unref (comp[i].inode); } */ GF_FREE ((void *)resolve->components); } } void free_fuse_state (fuse_state_t *state) { loc_wipe (&state->loc); loc_wipe (&state->loc2); if (state->dict) { dict_unref (state->dict); state->dict = (void *)0xaaaaeeee; } if (state->name) { GF_FREE (state->name); state->name = NULL; } if (state->fd) { fd_unref (state->fd); state->fd = (void *)0xfdfdfdfd; } if (state->finh) { GF_FREE (state->finh); state->finh = NULL; } fuse_resolve_wipe (&state->resolve); fuse_resolve_wipe (&state->resolve2); #ifdef DEBUG memset (state, 0x90, sizeof (*state)); #endif GF_FREE (state); state = NULL; } fuse_state_t * get_fuse_state (xlator_t *this, fuse_in_header_t *finh) { fuse_state_t *state = NULL; state = (void *)GF_CALLOC (1, sizeof (*state), gf_fuse_mt_fuse_state_t); if (!state) return NULL; state->pool = this->ctx->pool; state->finh = finh; state->this = this; LOCK_INIT (&state->lock); return state; } call_frame_t * get_call_frame_for_req (fuse_state_t *state) { call_pool_t *pool = NULL; fuse_in_header_t *finh = NULL; call_frame_t *frame = NULL; xlator_t *this = NULL; pool = state->pool; finh = state->finh; this = state->this; frame = create_frame (this, pool); if (!frame) return NULL; if (finh) { frame->root->uid = finh->uid; frame->root->gid = finh->gid; frame->root->pid = finh->pid; frame->root->lk_owner = state->lk_owner; frame->root->unique = finh->unique; } frame->root->type = GF_OP_TYPE_FOP; return frame; } inode_t * fuse_ino_to_inode (uint64_t ino, xlator_t *fuse) { inode_t *inode = NULL; xlator_t *active_subvol = NULL; if (ino == 1) { active_subvol = fuse_active_subvol (fuse); if (active_subvol) inode = active_subvol->itable->root; } else { inode = (inode_t *) (unsigned long) ino; inode_ref (inode); } return inode; } uint64_t inode_to_fuse_nodeid (inode_t *inode) { if (!inode || inode->ino == 1) return 1; return (unsigned long) inode; } GF_MUST_CHECK int32_t fuse_loc_fill (loc_t *loc, fuse_state_t *state, ino_t ino, ino_t par, const char *name) { inode_t *inode = NULL; inode_t *parent = NULL; int32_t ret = -1; char *path = NULL; /* resistance against multiple invocation of loc_fill not to get reference leaks via inode_search() */ if (name) { parent = loc->parent; if (!parent) { parent = fuse_ino_to_inode (par, state->this); loc->parent = parent; } inode = loc->inode; if (!inode) { inode = inode_grep (parent->table, parent, name); loc->inode = inode; } ret = inode_path (parent, name, &path); if (ret <= 0) { gf_log ("glusterfs-fuse", GF_LOG_DEBUG, "inode_path failed for %"PRId64"/%s", (parent)?parent->ino:0, name); goto fail; } loc->path = path; } else { inode = loc->inode; if (!inode) { inode = fuse_ino_to_inode (ino, state->this); loc->inode = inode; } parent = loc->parent; if (!parent) { parent = inode_parent (inode, par, name); loc->parent = parent; } ret = inode_path (inode, NULL, &path); if (ret <= 0) { gf_log ("glusterfs-fuse", GF_LOG_DEBUG, "inode_path failed for %"PRId64, (inode)?inode->ino:0); goto fail; } loc->path = path; } if (inode) loc->ino = inode->ino; if (loc->path) { loc->name = strrchr (loc->path, '/'); if (loc->name) loc->name++; else loc->name = ""; } if ((ino != 1) && (parent == NULL)) { gf_log ("fuse-bridge", GF_LOG_DEBUG, "failed to search parent for %"PRId64"/%s (%"PRId64")", (ino_t)par, name, (ino_t)ino); ret = -1; goto fail; } ret = 0; fail: return ret; } /* courtesy of folly */ void gf_fuse_stat2attr (struct iatt *st, struct fuse_attr *fa) { fa->ino = st->ia_ino; fa->size = st->ia_size; fa->blocks = st->ia_blocks; fa->atime = st->ia_atime; fa->mtime = st->ia_mtime; fa->ctime = st->ia_ctime; fa->atimensec = st->ia_atime_nsec; fa->mtimensec = st->ia_mtime_nsec; fa->ctimensec = st->ia_ctime_nsec; fa->mode = st_mode_from_ia (st->ia_prot, st->ia_type); fa->nlink = st->ia_nlink; fa->uid = st->ia_uid; fa->gid = st->ia_gid; fa->rdev = makedev (ia_major (st->ia_rdev), ia_minor (st->ia_rdev)); #if FUSE_KERNEL_MINOR_VERSION >= 9 fa->blksize = st->ia_blksize; #endif #ifdef GF_DARWIN_HOST_OS fa->crtime = (uint64_t)-1; fa->crtimensec = (uint32_t)-1; fa->flags = 0; #endif }