int nfs3_Readdirplus(nfs_arg_t * parg, exportlist_t * pexport, fsal_op_context_t * pcontext, cache_inode_client_t * pclient, hash_table_t * ht, struct svc_req *preq, nfs_res_t * pres) { static char __attribute__ ((__unused__)) funcName[] = "nfs3_Readdirplus"; typedef char entry_name_array_item_t[FSAL_MAX_NAME_LEN]; typedef char fh3_buffer_item_t[NFS3_FHSIZE]; unsigned int delta = 0; cache_entry_t *dir_pentry = NULL; cache_entry_t *pentry_dot_dot = NULL; unsigned long dircount; unsigned long maxcount; fsal_attrib_list_t dir_attr; fsal_attrib_list_t entry_attr; uint64_t begin_cookie; uint64_t end_cookie; uint64_t cache_inode_cookie; cache_inode_dir_entry_t **dirent_array = NULL; cookieverf3 cookie_verifier; int rc; unsigned int i = 0; unsigned int num_entries; unsigned long space_used; unsigned long estimated_num_entries; unsigned long asked_num_entries; cache_inode_file_type_t dir_filetype; cache_inode_endofdir_t eod_met = UNASSIGNED_EOD; cache_inode_status_t cache_status; cache_inode_status_t cache_status_gethandle; fsal_handle_t *pfsal_handle = NULL; entry_name_array_item_t *entry_name_array = NULL; fh3_buffer_item_t *fh3_array = NULL; entryplus3 reference_entry; READDIRPLUS3resok reference_reply; int dir_pentry_unlock = FALSE; if(isDebug(COMPONENT_NFSPROTO) || isDebug(COMPONENT_NFS_READDIR)) { char str[LEN_FH_STR]; log_components_t component; sprint_fhandle3(str, &(parg->arg_readdirplus3.dir)); if(isDebug(COMPONENT_NFSPROTO)) component = COMPONENT_NFSPROTO; else component = COMPONENT_NFS_READDIR; LogDebug(component, "REQUEST PROCESSING: Calling nfs3_Readdirplus handle: %s", str); } /* to avoid setting it on each error case */ pres->res_readdir3.READDIR3res_u.resfail.dir_attributes.attributes_follow = FALSE; dircount = parg->arg_readdirplus3.dircount; maxcount = parg->arg_readdirplus3.maxcount; begin_cookie = (unsigned int)parg->arg_readdirplus3.cookie; /* FIXME: This calculation over estimates the number of bytes that * READDIRPLUS3resok will use on the wire by 4 bytes on x86_64. */ space_used = sizeof(reference_reply.dir_attributes.attributes_follow) + sizeof(reference_reply.dir_attributes.post_op_attr_u.attributes) + sizeof(reference_reply.cookieverf) + sizeof(reference_reply.reply.eof); estimated_num_entries = (dircount - space_used + sizeof(entry3 *)) / (sizeof(entry3) - sizeof(char *)*2); // estimated_num_entries *= 4; LogFullDebug(COMPONENT_NFS_READDIR, "nfs3_Readdirplus: dircount=%lu maxcount=%lu begin_cookie=%" PRIu64" space_used=%lu estimated_num_entries=%lu", dircount, maxcount, begin_cookie, space_used, estimated_num_entries); /* Is this a xattr FH ? */ if(nfs3_Is_Fh_Xattr(&(parg->arg_readdirplus3.dir))) return nfs3_Readdirplus_Xattr(parg, pexport, pcontext, pclient, ht, preq, pres); /* Convert file handle into a vnode */ if((dir_pentry = nfs_FhandleToCache(preq->rq_vers, NULL, &(parg->arg_readdirplus3.dir), NULL, NULL, &(pres->res_readdirplus3.status), NULL, &dir_attr, pcontext, pclient, ht, &rc)) == NULL) { /* return NFS_REQ_DROP ; */ return rc; } /* Extract the filetype */ dir_filetype = cache_inode_fsal_type_convert(dir_attr.type); /* Sanity checks -- must be a directory */ if(dir_filetype != DIRECTORY) { pres->res_readdirplus3.status = NFS3ERR_NOTDIR; return NFS_REQ_OK; } /* switch */ memset(cookie_verifier, 0, sizeof(cookieverf3)); /* * If cookie verifier is used, then an non-trivial value is * returned to the client This value is the mtime of * the directory. If verifier is unused (as in many NFS * Servers) then only a set of zeros is returned (trivial * value) */ if(pexport->UseCookieVerifier) memcpy(cookie_verifier, &(dir_attr.mtime), sizeof(dir_attr.mtime)); /* * nothing to do if != 0 because the area is already full of * zero */ if(pexport->UseCookieVerifier && (begin_cookie != 0)) { /* * Not the first call, so we have to check the cookie * verifier */ if(memcmp(cookie_verifier, parg->arg_readdirplus3.cookieverf, NFS3_COOKIEVERFSIZE) != 0) { pres->res_readdirplus3.status = NFS3ERR_BAD_COOKIE; return NFS_REQ_OK; } } if((dirent_array = (cache_inode_dir_entry_t **) Mem_Alloc_Label( estimated_num_entries * sizeof(cache_inode_dir_entry_t*), "cache_inode_dir_entry_t in nfs3_Readdirplus")) == NULL) { pres->res_readdirplus3.status = NFS3ERR_IO; return NFS_REQ_DROP; } pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.entries = NULL; pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.eof = FALSE; /** @todo XXXX fix this--compare nfs4_op_readdir */ /* How many entries will we retry from cache_inode ? */ if(begin_cookie > 1) { asked_num_entries = estimated_num_entries; cache_inode_cookie = begin_cookie; } else { asked_num_entries = ((estimated_num_entries > 2) ? estimated_num_entries - 2 : 0); /* Keep space for '.' and '..' */ cache_inode_cookie = 0; } /* A definition that will be very useful to avoid very long names for variables */ #define RES_READDIRPLUS_REPLY pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply /* Call readdir */ if(cache_inode_readdir(dir_pentry, pexport->cache_inode_policy, cache_inode_cookie, asked_num_entries, &num_entries, &end_cookie, &eod_met, dirent_array, ht, &dir_pentry_unlock, pclient, pcontext, &cache_status) == CACHE_INODE_SUCCESS) { LogFullDebug(COMPONENT_NFS_READDIR, "Readdirplus3 -> Call to cache_inode_readdir( cookie=%" PRIu64", asked=%lu ) -> num_entries = %u", cache_inode_cookie, asked_num_entries, num_entries); if(eod_met == END_OF_DIR) { LogFullDebug(COMPONENT_NFS_READDIR, "+++++++++++++++++++++++++++++++++++++++++> EOD MET "); } /* If nothing was found, return nothing, but if cookie=0, we should return . and .. */ if((num_entries == 0) && (asked_num_entries != 0) && (begin_cookie > 1)) { pres->res_readdirplus3.status = NFS3_OK; pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.entries = NULL; pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.eof = TRUE; nfs_SetPostOpAttr(pcontext, pexport, dir_pentry, NULL, &(pres->res_readdirplus3.READDIRPLUS3res_u.resok. dir_attributes)); memcpy(pres->res_readdirplus3.READDIRPLUS3res_u.resok.cookieverf, cookie_verifier, sizeof(cookieverf3)); } else { /* Allocation of the structure for reply */ entry_name_array = (entry_name_array_item_t *) Mem_Alloc_Label(estimated_num_entries * (FSAL_MAX_NAME_LEN + 1), "entry_name_array in nfs3_Readdirplus"); if(entry_name_array == NULL) { /* after successful cache_inode_readdir, dir_pentry may be * read locked */ if (dir_pentry_unlock) V_r(&dir_pentry->lock); if( !CACHE_INODE_KEEP_CONTENT( dir_pentry->policy ) ) cache_inode_release_dirent( dirent_array, num_entries, pclient ) ; Mem_Free((char *)dirent_array); return NFS_REQ_DROP; } pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.entries = (entryplus3 *) Mem_Alloc_Label(estimated_num_entries * sizeof(entryplus3), "READDIRPLUS3res_u.resok.reply.entries"); if(pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.entries == NULL) { /* after successful cache_inode_readdir, dir_pentry may be * read locked */ if (dir_pentry_unlock) V_r(&dir_pentry->lock); if( !CACHE_INODE_KEEP_CONTENT( dir_pentry->policy ) ) cache_inode_release_dirent( dirent_array, num_entries, pclient ) ; Mem_Free((char *)dirent_array); Mem_Free((char *)entry_name_array); return NFS_REQ_DROP; } /* Allocation of the file handles */ fh3_array = (fh3_buffer_item_t *) Mem_Alloc_Label(estimated_num_entries * NFS3_FHSIZE, "Filehandle V3 in nfs3_Readdirplus"); if(fh3_array == NULL) { /* after successful cache_inode_readdir, dir_pentry may be * read locked */ if (dir_pentry_unlock) V_r(&dir_pentry->lock); if( !CACHE_INODE_KEEP_CONTENT( dir_pentry->policy ) ) cache_inode_release_dirent( dirent_array, num_entries, pclient ) ; Mem_Free((char *)dirent_array); Mem_Free((char *)entry_name_array); return NFS_REQ_DROP; } delta = 0; /* manage . and .. */ if(begin_cookie == 0) { /* Fill in '.' */ if(estimated_num_entries > 0) { if((pfsal_handle = cache_inode_get_fsal_handle(dir_pentry, &cache_status_gethandle)) == NULL) { /* after successful cache_inode_readdir, dir_pentry * may be read locked */ if (dir_pentry_unlock) V_r(&dir_pentry->lock); if( !CACHE_INODE_KEEP_CONTENT( dir_pentry->policy ) ) cache_inode_release_dirent( dirent_array, num_entries, pclient ) ; Mem_Free((char *)dirent_array); Mem_Free((char *)entry_name_array); Mem_Free((char *)fh3_array); pres->res_readdirplus3.status = nfs3_Errno(cache_status_gethandle); return NFS_REQ_OK; } FSAL_DigestHandle(FSAL_GET_EXP_CTX(pcontext), FSAL_DIGEST_FILEID3, pfsal_handle, (caddr_t) & (RES_READDIRPLUS_REPLY.entries[0]. fileid)); RES_READDIRPLUS_REPLY.entries[0].name = entry_name_array[0]; strcpy(RES_READDIRPLUS_REPLY.entries[0].name, "."); RES_READDIRPLUS_REPLY.entries[0].cookie = 1; pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.entries[0]. name_handle.post_op_fh3_u.handle.data.data_val = (char *)fh3_array[0]; if(nfs3_FSALToFhandle (&pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.entries[0]. name_handle.post_op_fh3_u.handle, pfsal_handle, pexport) == 0) { /* after successful cache_inode_readdir, dir_pentry may * be read locked */ if (dir_pentry_unlock) V_r(&dir_pentry->lock); if( !CACHE_INODE_KEEP_CONTENT( dir_pentry->policy ) ) cache_inode_release_dirent( dirent_array, num_entries, pclient ) ; Mem_Free((char *)dirent_array); Mem_Free((char *)entry_name_array); Mem_Free((char *)fh3_array); pres->res_readdirplus3.status = NFS3ERR_BADHANDLE; return NFS_REQ_OK; } RES_READDIRPLUS_REPLY.entries[0].name_attributes.attributes_follow = FALSE; RES_READDIRPLUS_REPLY.entries[0].name_handle.handle_follows = FALSE; entry_attr = dir_pentry->attributes; /* Set PostPoFh3 structure */ pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.entries[0]. name_handle.handle_follows = TRUE; pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.entries[0]. name_handle.post_op_fh3_u.handle.data.data_len = sizeof(file_handle_v3_t); nfs_SetPostOpAttr(pcontext, pexport, dir_pentry, &entry_attr, &(pres->res_readdirplus3.READDIRPLUS3res_u.resok. reply.entries[0].name_attributes)); LogFullDebug(COMPONENT_NFS_READDIR, "Readdirplus3 -> i=0 num_entries=%d space_used=%lu maxcount=%lu Name=. FileId=%016llx Cookie=%llu", num_entries, space_used, maxcount, RES_READDIRPLUS_REPLY.entries[0].fileid, RES_READDIRPLUS_REPLY.entries[0].cookie); delta += 1; } } /* Fill in '..' */ if(begin_cookie <= 1) { if(estimated_num_entries > delta) { if((pentry_dot_dot = cache_inode_lookupp_sw(dir_pentry, ht, pclient, pcontext, &cache_status_gethandle, !dir_pentry_unlock)) == NULL) { /* after successful cache_inode_readdir, dir_pentry may * be read locked */ if (dir_pentry_unlock) V_r(&dir_pentry->lock); if( !CACHE_INODE_KEEP_CONTENT( dir_pentry->policy ) ) cache_inode_release_dirent( dirent_array, num_entries, pclient ) ; Mem_Free((char *)dirent_array); Mem_Free((char *)entry_name_array); Mem_Free((char *)fh3_array); pres->res_readdirplus3.status = nfs3_Errno(cache_status_gethandle); return NFS_REQ_OK; } if((pfsal_handle = cache_inode_get_fsal_handle(pentry_dot_dot, &cache_status_gethandle)) == NULL) { /* after successful cache_inode_readdir, dir_pentry may * be read locked */ if (dir_pentry_unlock) V_r(&dir_pentry->lock); if( !CACHE_INODE_KEEP_CONTENT( dir_pentry->policy ) ) cache_inode_release_dirent( dirent_array, num_entries, pclient ) ; Mem_Free((char *)dirent_array); Mem_Free((char *)entry_name_array); Mem_Free((char *)fh3_array); pres->res_readdirplus3.status = nfs3_Errno(cache_status_gethandle); return NFS_REQ_OK; } FSAL_DigestHandle(FSAL_GET_EXP_CTX(pcontext), FSAL_DIGEST_FILEID3, pfsal_handle, (caddr_t) & (RES_READDIRPLUS_REPLY.entries[delta]. fileid)); RES_READDIRPLUS_REPLY.entries[delta].name = entry_name_array[delta]; strcpy(RES_READDIRPLUS_REPLY.entries[delta].name, ".."); /* Getting a file handle */ pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.entries[delta]. name_handle.post_op_fh3_u.handle.data.data_val = (char *)fh3_array[delta]; if(nfs3_FSALToFhandle (&pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.entries[delta]. name_handle.post_op_fh3_u.handle, pfsal_handle, pexport) == 0) { /* after successful cache_inode_readdir, dir_pentry may * be read locked */ if (dir_pentry_unlock) V_r(&dir_pentry->lock); if( !CACHE_INODE_KEEP_CONTENT( dir_pentry->policy ) ) cache_inode_release_dirent( dirent_array, num_entries, pclient ) ; Mem_Free((char *)dirent_array); Mem_Free((char *)entry_name_array); Mem_Free((char *)fh3_array); pres->res_readdirplus3.status = NFS3ERR_BADHANDLE; return NFS_REQ_OK; } RES_READDIRPLUS_REPLY.entries[delta].cookie = 2; RES_READDIRPLUS_REPLY.entries[delta].name_attributes.attributes_follow = FALSE; RES_READDIRPLUS_REPLY.entries[delta].name_handle.handle_follows = FALSE; entry_attr = pentry_dot_dot->attributes; /* Set PostPoFh3 structure */ pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.entries[delta]. name_handle.handle_follows = TRUE; pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.entries[delta]. name_handle.post_op_fh3_u.handle.data.data_len = sizeof(file_handle_v3_t); nfs_SetPostOpAttr(pcontext, pexport, pentry_dot_dot, &entry_attr, &(pres->res_readdirplus3.READDIRPLUS3res_u.resok. reply.entries[delta].name_attributes)); LogFullDebug(COMPONENT_NFS_READDIR, "Readdirplus3 -> i=%d num_entries=%d space_used=%lu maxcount=%lu Name=.. FileId=%016llx Cookie=%llu", delta, num_entries, space_used, maxcount, RES_READDIRPLUS_REPLY.entries[delta].fileid, RES_READDIRPLUS_REPLY.entries[delta].cookie); } RES_READDIRPLUS_REPLY.entries[0].nextentry = &(RES_READDIRPLUS_REPLY.entries[delta]); if(num_entries > delta + 1) /* not 0 ??? */ RES_READDIRPLUS_REPLY.entries[delta].nextentry = &(RES_READDIRPLUS_REPLY.entries[delta + 1]); else RES_READDIRPLUS_REPLY.entries[delta].nextentry = NULL; delta += 1; } /* if( begin_cookie == 0 ) */ for(i = delta; i < num_entries + delta; i++) { unsigned long needed; /* maxcount is the size with the FH and attributes overhead, * so entryplus3 is used instead of entry3. The data structures * in nfs23.h have funny padding depending on the arch (32 or 64). * We can't get an accurate estimate by simply using * sizeof(entryplus3). */ /* FIXME: There is still a 4 byte over estimate here on x86_64. */ /** @todo Remove cookie offset calculation in readdir and readdirplus (obsoleted) */ needed = sizeof(reference_entry) + NFS3_FHSIZE + ((strlen(dirent_array[i - delta]->name.name) + 3) & ~3); /* if delta == 1 or 2, then "." and ".." have already been added * to the readdirplus reply. */ if (i == delta) { needed += needed*delta /* size of a dir entry in reply */ - ((strlen(dirent_array[i - delta]->name.name) + 3) & ~3)*delta /* size of filename for current entry */ + 4*delta; /* size of "." and ".." filenames in reply */ } if((space_used += needed) > maxcount) { /* If delta != 0, then we already added "." or ".." to the reply. */ if(i == delta && delta == 0) { /* Not enough room to make even a single reply */ /* after successful cache_inode_readdir, dir_pentry may * be read locked */ if (dir_pentry_unlock) V_r(&dir_pentry->lock); if( !CACHE_INODE_KEEP_CONTENT( dir_pentry->policy ) ) cache_inode_release_dirent( dirent_array, num_entries, pclient ) ; Mem_Free((char *)dirent_array); Mem_Free((char *)entry_name_array); Mem_Free((char *)fh3_array); pres->res_readdirplus3.status = NFS3ERR_TOOSMALL; return NFS_REQ_OK; } break; /* Make post traitement */ } /* * Get information specific to this entry */ if((pfsal_handle = cache_inode_get_fsal_handle(dirent_array[i - delta]->pentry, &cache_status_gethandle)) == NULL) { /* after successful cache_inode_readdir, dir_pentry may be * read locked */ if (dir_pentry_unlock) V_r(&dir_pentry->lock); if( !CACHE_INODE_KEEP_CONTENT( dir_pentry->policy ) ) cache_inode_release_dirent( dirent_array, num_entries, pclient ) ; Mem_Free((char *)dirent_array); Mem_Free((char *)entry_name_array); Mem_Free((char *)fh3_array); pres->res_readdirplus3.status = nfs3_Errno(cache_status_gethandle); return NFS_REQ_OK; } /* Now fill in the replyed entryplus3 list */ FSAL_DigestHandle(FSAL_GET_EXP_CTX(pcontext), FSAL_DIGEST_FILEID3, pfsal_handle, (caddr_t) & (RES_READDIRPLUS_REPLY.entries[i].fileid)); FSAL_name2str(&dirent_array[i - delta]->name, entry_name_array[i], FSAL_MAX_NAME_LEN); RES_READDIRPLUS_REPLY.entries[i].name = entry_name_array[i]; LogFullDebug(COMPONENT_NFS_READDIR, "Readdirplus3 -> i=%u num_entries=%u delta=%u " "num_entries + delta - 1=%u end_cookie=%"PRIu64, i, num_entries, delta, num_entries + delta - 1, end_cookie); if(i != num_entries + delta - 1) RES_READDIRPLUS_REPLY.entries[i].cookie = dirent_array[i - delta]->cookie; else RES_READDIRPLUS_REPLY.entries[i].cookie = end_cookie; RES_READDIRPLUS_REPLY.entries[i].name_attributes.attributes_follow = FALSE; RES_READDIRPLUS_REPLY.entries[i].name_handle.handle_follows = FALSE; entry_attr = dirent_array[i - delta]->pentry->attributes; pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.entries[i].name_handle.post_op_fh3_u.handle.data.data_val = (char *)fh3_array[i]; /* Compute the NFSv3 file handle */ if(nfs3_FSALToFhandle (&pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.entries[i]. name_handle.post_op_fh3_u.handle, pfsal_handle, pexport) == 0) { /* after successful cache_inode_readdir, dir_pentry may be * read locked */ if (dir_pentry_unlock) V_r(&dir_pentry->lock); if( !CACHE_INODE_KEEP_CONTENT( dir_pentry->policy ) ) cache_inode_release_dirent( dirent_array, num_entries, pclient ) ; Mem_Free((char *)dirent_array); Mem_Free((char *)entry_name_array); Mem_Free((char *)fh3_array); pres->res_readdirplus3.status = NFS3ERR_BADHANDLE; return NFS_REQ_OK; } /* Set PostPoFh3 structure */ pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.entries[i].name_handle.handle_follows = TRUE; pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.entries[i].name_handle.post_op_fh3_u.handle.data.data_len = sizeof(file_handle_v3_t); nfs_SetPostOpAttr(pcontext, pexport, dirent_array[i - delta]->pentry, &entry_attr, &(pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.entries[i].name_attributes)); LogFullDebug(COMPONENT_NFS_READDIR, "Readdirplus3 -> i=%d, num_entries=%d needed=%lu space_used=%lu maxcount=%lu Name=%s FileId=%016llx Cookie=%llu", i, num_entries, needed, space_used, maxcount, dirent_array[i - delta]->name.name, RES_READDIRPLUS_REPLY.entries[i].fileid, RES_READDIRPLUS_REPLY.entries[i].cookie); RES_READDIRPLUS_REPLY.entries[i].nextentry = NULL; if(i != 0) RES_READDIRPLUS_REPLY.entries[i - 1].nextentry = &(RES_READDIRPLUS_REPLY.entries[i]); } pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.eof = FALSE; } nfs_SetPostOpAttr(pcontext, pexport, dir_pentry, &dir_attr, &(pres->res_readdirplus3.READDIRPLUS3res_u.resok.dir_attributes)); memcpy(pres->res_readdirplus3.READDIRPLUS3res_u.resok.cookieverf, cookie_verifier, sizeof(cookieverf3)); pres->res_readdirplus3.status = NFS3_OK; if((eod_met == END_OF_DIR) && (i == num_entries + delta)) { /* End of directory */ LogFullDebug(COMPONENT_NFS_READDIR, "============================================================> EOD MET !!!!!!"); pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.eof = TRUE; } else pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.eof = FALSE; nfs_SetPostOpAttr(pcontext, pexport, dir_pentry, &dir_attr, &(pres->res_readdirplus3.READDIRPLUS3res_u.resok.dir_attributes)); memcpy(pres->res_readdirplus3.READDIRPLUS3res_u.resok.cookieverf, cookie_verifier, sizeof(cookieverf3)); LogFullDebug(COMPONENT_NFS_READDIR, "============================================================"); /* after successful cache_inode_readdir, dir_pentry may be * read locked */ if (dir_pentry_unlock) V_r(&dir_pentry->lock); /* Free the memory */ if( !CACHE_INODE_KEEP_CONTENT( dir_pentry->policy ) ) cache_inode_release_dirent( dirent_array, num_entries, pclient ) ; Mem_Free((char *)dirent_array); return NFS_REQ_OK; } /* If we are here, there was an error */ /* after successful cache_inode_readdir, dir_pentry may be * read locked */ if (dir_pentry_unlock) V_r(&dir_pentry->lock); /* Free the memory */ if( !CACHE_INODE_KEEP_CONTENT( dir_pentry->policy ) ) cache_inode_release_dirent( dirent_array, num_entries, pclient ) ; Mem_Free((char *)dirent_array); Mem_Free((char *)entry_name_array); Mem_Free((char *)fh3_array); /* Is this a retryable error */ if(nfs_RetryableError(cache_status)) return NFS_REQ_DROP; /* Set failed status */ nfs_SetFailedStatus(pcontext, pexport, NFS_V3, cache_status, NULL, &pres->res_readdirplus3.status, dir_pentry, &(pres->res_readdirplus3.READDIRPLUS3res_u.resfail.dir_attributes), NULL, NULL, NULL, NULL, NULL, NULL); return NFS_REQ_OK; } /* nfs3_Readdirplus */
int nfs3_Readdirplus(nfs_arg_t * parg, exportlist_t * pexport, fsal_op_context_t * pcontext, cache_inode_client_t * pclient, hash_table_t * ht, struct svc_req *preq, nfs_res_t * pres) { static char __attribute__ ((__unused__)) funcName[] = "nfs3_Readdirplus"; typedef char entry_name_array_item_t[FSAL_MAX_NAME_LEN]; typedef char fh3_buffer_item_t[NFS3_FHSIZE]; unsigned int delta = 0; cache_entry_t *dir_pentry = NULL; cache_entry_t *pentry_dot_dot = NULL; unsigned long dircount; unsigned long maxcount; fsal_attrib_list_t dir_attr; fsal_attrib_list_t entry_attr; unsigned int begin_cookie; unsigned int end_cookie; unsigned int cache_inode_cookie; cache_inode_dir_entry_t *dirent_array = NULL; unsigned int *cookie_array = NULL; cookieverf3 cookie_verifier; int rc; unsigned int i = 0; unsigned int num_entries; unsigned long space_used; unsigned long estimated_num_entries; unsigned long asked_num_entries; cache_inode_file_type_t dir_filetype; cache_inode_endofdir_t eod_met = UNASSIGNED_EOD; cache_inode_status_t cache_status; cache_inode_status_t cache_status_gethandle; fsal_handle_t *pfsal_handle = NULL; entry_name_array_item_t *entry_name_array = NULL; fh3_buffer_item_t *fh3_array = NULL; /* to avoid setting it on each error case */ pres->res_readdir3.READDIR3res_u.resfail.dir_attributes.attributes_follow = FALSE; dircount = parg->arg_readdirplus3.dircount; maxcount = parg->arg_readdirplus3.maxcount; begin_cookie = (unsigned int)parg->arg_readdirplus3.cookie; space_used = sizeof(READDIRPLUS3resok); estimated_num_entries = dircount / sizeof(entryplus3); LogFullDebug(COMPONENT_NFS_READDIR, "---> nfs3_Readdirplus: dircount=%d maxcount=%d begin_cookie=%d space_used=%d estimated_num_entries=%d\n", dircount, maxcount, begin_cookie, space_used, estimated_num_entries); /* Is this a xattr FH ? */ if(nfs3_Is_Fh_Xattr(&(parg->arg_readdirplus3.dir))) return nfs3_Readdirplus_Xattr(parg, pexport, pcontext, pclient, ht, preq, pres); /* Convert file handle into a vnode */ /* BUGAZOMEU : rajouter acces direct au DIR_CONTINUE */ if((dir_pentry = nfs_FhandleToCache(preq->rq_vers, NULL, &(parg->arg_readdirplus3.dir), NULL, NULL, &(pres->res_readdirplus3.status), NULL, &dir_attr, pcontext, pclient, ht, &rc)) == NULL) { /* return NFS_REQ_DROP ; */ return rc; } /* Extract the filetype */ dir_filetype = cache_inode_fsal_type_convert(dir_attr.type); /* Sanity checks -- must be a directory */ if((dir_filetype != DIR_BEGINNING) && (dir_filetype != DIR_CONTINUE)) { pres->res_readdirplus3.status = NFS3ERR_NOTDIR; return NFS_REQ_OK; } /* switch */ memset(cookie_verifier, 0, sizeof(cookieverf3)); /* * If cookie verifier is used, then an non-trivial value is * returned to the client This value is the mtime of * the directory. If verifier is unused (as in many NFS * Servers) then only a set of zeros is returned (trivial * value) */ if(pexport->UseCookieVerifier) memcpy(cookie_verifier, &(dir_attr.mtime), sizeof(dir_attr.mtime)); /* * nothing to do if != 0 because the area is already full of * zero */ if(pexport->UseCookieVerifier && (begin_cookie != 0)) { /* * Not the first call, so we have to check the cookie * verifier */ if(memcmp(cookie_verifier, parg->arg_readdirplus3.cookieverf, NFS3_COOKIEVERFSIZE) != 0) { pres->res_readdirplus3.status = NFS3ERR_BAD_COOKIE; return NFS_REQ_OK; } } #ifdef _DEBUG_MEMLEAKS /* For debugging memory leaks */ BuddySetDebugLabel("cache_inode_dir_entry_t in nfs3_Readdirplus"); #endif if((dirent_array = (cache_inode_dir_entry_t *) Mem_Alloc(estimated_num_entries * sizeof(cache_inode_dir_entry_t))) == NULL) { pres->res_readdirplus3.status = NFS3ERR_IO; return NFS_REQ_DROP; } #ifdef _DEBUG_MEMLEAKS /* For debugging memory leaks */ BuddySetDebugLabel("cookie array in nfs3_Readdirplus"); #endif if((cookie_array = (unsigned int *)Mem_Alloc(estimated_num_entries * sizeof(unsigned int))) == NULL) { Mem_Free((char *)dirent_array); pres->res_readdirplus3.status = NFS3ERR_IO; return NFS_REQ_DROP; } pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.entries = NULL; pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.eof = FALSE; /* How many entries will we retry from cache_inode ? */ if(begin_cookie > 1) { asked_num_entries = estimated_num_entries; cache_inode_cookie = begin_cookie - 2; } else { asked_num_entries = ((estimated_num_entries > 2) ? estimated_num_entries - 2 : 0); /* Keep space for '.' and '..' */ cache_inode_cookie = 0; } /* A definition that will be very useful to avoid very long names for variables */ #define RES_READDIRPLUS_REPLY pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply /* Call readdir */ if(cache_inode_readdir(dir_pentry, cache_inode_cookie, asked_num_entries, &num_entries, &end_cookie, &eod_met, dirent_array, cookie_array, ht, pclient, pcontext, &cache_status) == CACHE_INODE_SUCCESS) { LogFullDebug(COMPONENT_NFS_READDIR, "-- Readdirplus3 -> Call to cache_inode_readdir( cookie=%d, asked=%d ) -> num_entries = %d\n", cache_inode_cookie, asked_num_entries, num_entries); if(eod_met == END_OF_DIR) { LogFullDebug(COMPONENT_NFS_READDIR, "+++++++++++++++++++++++++++++++++++++++++> EOD MET \n"); } /* If nothing was found, return nothing, but if cookie=0, we should return . and .. */ if((num_entries == 0) && (asked_num_entries != 0) && (begin_cookie > 1)) { pres->res_readdirplus3.status = NFS3_OK; pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.entries = NULL; pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.eof = TRUE; nfs_SetPostOpAttr(pcontext, pexport, dir_pentry, NULL, &(pres->res_readdirplus3.READDIRPLUS3res_u.resok. dir_attributes)); memcpy(pres->res_readdirplus3.READDIRPLUS3res_u.resok.cookieverf, cookie_verifier, sizeof(cookieverf3)); } else { #ifdef _DEBUG_MEMLEAKS /* For debugging memory leaks */ BuddySetDebugLabel("entry_name_array in nfs3_Readdirplus"); #endif /* Allocation of the structure for reply */ entry_name_array = (entry_name_array_item_t *) Mem_Alloc(estimated_num_entries * (FSAL_MAX_NAME_LEN + 1)); if(entry_name_array == NULL) { Mem_Free((char *)dirent_array); Mem_Free((char *)cookie_array); return NFS_REQ_DROP; } #ifdef _DEBUG_MEMLEAKS /* For debugging memory leaks */ BuddySetDebugLabel("READDIRPLUS3res_u.resok.reply.entries"); #endif pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.entries = (entryplus3 *) Mem_Alloc(estimated_num_entries * sizeof(entryplus3)); if(pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.entries == NULL) { Mem_Free((char *)dirent_array); Mem_Free((char *)cookie_array); Mem_Free((char *)entry_name_array); return NFS_REQ_DROP; } /* Allocation of the file handles */ #ifdef _DEBUG_MEMLEAKS /* For debugging memory leaks */ BuddySetDebugLabel("Filehandle V3 in nfs3_Readdirplus"); #endif fh3_array = (fh3_buffer_item_t *) Mem_Alloc(estimated_num_entries * NFS3_FHSIZE); #ifdef _DEBUG_MEMLEAKS /* For debugging memory leaks */ BuddySetDebugLabel("N/A"); #endif if(fh3_array == NULL) { Mem_Free((char *)dirent_array); Mem_Free((char *)cookie_array); Mem_Free((char *)entry_name_array); return NFS_REQ_DROP; } delta = 0; /* manage . and .. */ if(begin_cookie == 0) { /* Fill in '.' */ if(estimated_num_entries > 0) { if((pfsal_handle = cache_inode_get_fsal_handle(dir_pentry, &cache_status_gethandle)) == NULL) { Mem_Free((char *)dirent_array); Mem_Free((char *)cookie_array); Mem_Free((char *)entry_name_array); Mem_Free((char *)fh3_array); pres->res_readdirplus3.status = nfs3_Errno(cache_status_gethandle); return NFS_REQ_OK; } FSAL_DigestHandle(FSAL_GET_EXP_CTX(pcontext), FSAL_DIGEST_FILEID3, pfsal_handle, (caddr_t) & (RES_READDIRPLUS_REPLY.entries[0]. fileid)); RES_READDIRPLUS_REPLY.entries[0].name = entry_name_array[0]; strcpy(RES_READDIRPLUS_REPLY.entries[0].name, "."); RES_READDIRPLUS_REPLY.entries[0].cookie = 1; pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.entries[0]. name_handle.post_op_fh3_u.handle.data.data_val = (char *)fh3_array[0]; if(nfs3_FSALToFhandle (&pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.entries[0]. name_handle.post_op_fh3_u.handle, pfsal_handle, pexport) == 0) { Mem_Free((char *)dirent_array); Mem_Free((char *)cookie_array); Mem_Free((char *)entry_name_array); Mem_Free((char *)fh3_array); pres->res_readdirplus3.status = NFS3ERR_BADHANDLE; return NFS_REQ_OK; } RES_READDIRPLUS_REPLY.entries[0].name_attributes.attributes_follow = FALSE; RES_READDIRPLUS_REPLY.entries[0].name_handle.handle_follows = FALSE; cache_inode_get_attributes(dir_pentry, &entry_attr); /* Set PostPoFh3 structure */ pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.entries[0]. name_handle.handle_follows = TRUE; pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.entries[0]. name_handle.post_op_fh3_u.handle.data.data_len = sizeof(file_handle_v3_t); nfs_SetPostOpAttr(pcontext, pexport, dir_pentry, &entry_attr, &(pres->res_readdirplus3.READDIRPLUS3res_u.resok. reply.entries[0].name_attributes)); delta += 1; } } /* Fill in '..' */ if(begin_cookie <= 1) { if(estimated_num_entries > delta) { if((pentry_dot_dot = cache_inode_lookupp(dir_pentry, ht, pclient, pcontext, &cache_status_gethandle)) == NULL) { Mem_Free((char *)dirent_array); Mem_Free((char *)cookie_array); Mem_Free((char *)entry_name_array); Mem_Free((char *)fh3_array); pres->res_readdirplus3.status = nfs3_Errno(cache_status_gethandle); return NFS_REQ_OK; } if((pfsal_handle = cache_inode_get_fsal_handle(pentry_dot_dot, &cache_status_gethandle)) == NULL) { Mem_Free((char *)dirent_array); Mem_Free((char *)cookie_array); Mem_Free((char *)entry_name_array); Mem_Free((char *)fh3_array); pres->res_readdirplus3.status = nfs3_Errno(cache_status_gethandle); return NFS_REQ_OK; } FSAL_DigestHandle(FSAL_GET_EXP_CTX(pcontext), FSAL_DIGEST_FILEID3, pfsal_handle, (caddr_t) & (RES_READDIRPLUS_REPLY.entries[delta]. fileid)); RES_READDIRPLUS_REPLY.entries[delta].name = entry_name_array[delta]; strcpy(RES_READDIRPLUS_REPLY.entries[delta].name, ".."); /* Getting a file handle */ pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.entries[delta]. name_handle.post_op_fh3_u.handle.data.data_val = (char *)fh3_array[delta]; if(nfs3_FSALToFhandle (&pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.entries[0]. name_handle.post_op_fh3_u.handle, pfsal_handle, pexport) == 0) { Mem_Free((char *)dirent_array); Mem_Free((char *)cookie_array); Mem_Free((char *)entry_name_array); Mem_Free((char *)fh3_array); pres->res_readdirplus3.status = NFS3ERR_BADHANDLE; return NFS_REQ_OK; } RES_READDIRPLUS_REPLY.entries[delta].cookie = 2; RES_READDIRPLUS_REPLY.entries[delta].name_attributes.attributes_follow = FALSE; RES_READDIRPLUS_REPLY.entries[delta].name_handle.handle_follows = FALSE; cache_inode_get_attributes(pentry_dot_dot, &entry_attr); /* Set PostPoFh3 structure */ pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.entries[delta]. name_handle.handle_follows = TRUE; pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.entries[delta]. name_handle.post_op_fh3_u.handle.data.data_len = sizeof(file_handle_v3_t); nfs_SetPostOpAttr(pcontext, pexport, pentry_dot_dot, &entry_attr, &(pres->res_readdirplus3.READDIRPLUS3res_u.resok. reply.entries[delta].name_attributes)); } RES_READDIRPLUS_REPLY.entries[0].nextentry = &(RES_READDIRPLUS_REPLY.entries[delta]); if(num_entries > delta + 1) /* not 0 ??? */ RES_READDIRPLUS_REPLY.entries[delta].nextentry = &(RES_READDIRPLUS_REPLY.entries[delta + 1]); else RES_READDIRPLUS_REPLY.entries[delta].nextentry = NULL; delta += 1; } /* if( begin_cookie == 0 ) */ for(i = delta; i < num_entries + delta; i++) { unsigned long needed; /* dircount is the size without the FH and attributes overhead, so entry3 is used intead of entryplus3 */ needed = sizeof(entry3) + ((strlen(dirent_array[i - delta].name.name) + 3) & ~3); /* LogFullDebug(COMPONENT_NFS_READDIR, "==============> i=%d sizeof(entryplus3)=%d needed=%d space_used=%d maxcount=%d num_entries=%d asked_num_entries=%d\n", i, sizeof( entryplus3 ), needed, space_used, maxcount, num_entries, asked_num_entries ) ; */ if((space_used += needed) > maxcount) { if(i == delta) { /* * Not enough room to make even a single reply */ Mem_Free((char *)dirent_array); Mem_Free((char *)cookie_array); Mem_Free((char *)entry_name_array); Mem_Free((char *)fh3_array); pres->res_readdirplus3.status = NFS3ERR_TOOSMALL; return NFS_REQ_OK; } break; /* Make post traitement */ } /* * Get information specific to this entry */ if((pfsal_handle = cache_inode_get_fsal_handle(dirent_array[i - delta].pentry, &cache_status_gethandle)) == NULL) { Mem_Free((char *)dirent_array); Mem_Free((char *)cookie_array); Mem_Free((char *)entry_name_array); Mem_Free((char *)fh3_array); pres->res_readdirplus3.status = nfs3_Errno(cache_status_gethandle); return NFS_REQ_OK; } /* Now fill in the replyed entryplus3 list */ FSAL_DigestHandle(FSAL_GET_EXP_CTX(pcontext), FSAL_DIGEST_FILEID3, pfsal_handle, (caddr_t) & (RES_READDIRPLUS_REPLY.entries[i].fileid)); FSAL_name2str(&dirent_array[i - delta].name, entry_name_array[i], FSAL_MAX_NAME_LEN); RES_READDIRPLUS_REPLY.entries[i].name = entry_name_array[i]; if(i != num_entries + delta - 1) RES_READDIRPLUS_REPLY.entries[i].cookie = cookie_array[i + 1 - delta] + 2; else RES_READDIRPLUS_REPLY.entries[i].cookie = end_cookie + 2; RES_READDIRPLUS_REPLY.entries[i].name_attributes.attributes_follow = FALSE; RES_READDIRPLUS_REPLY.entries[i].name_handle.handle_follows = FALSE; cache_inode_get_attributes(dirent_array[i - delta].pentry, &entry_attr); pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.entries[i].name_handle. post_op_fh3_u.handle.data.data_val = (char *)fh3_array[i]; /* Compute the NFSv3 file handle */ if(nfs3_FSALToFhandle (&pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.entries[i]. name_handle.post_op_fh3_u.handle, pfsal_handle, pexport) == 0) { Mem_Free((char *)dirent_array); Mem_Free((char *)cookie_array); Mem_Free((char *)entry_name_array); Mem_Free((char *)fh3_array); pres->res_readdirplus3.status = NFS3ERR_BADHANDLE; return NFS_REQ_OK; } LogFullDebug(COMPONENT_NFS_READDIR, "-- Readdirplus3 -> i=%d num_entries=%d needed=%d space_used=%lu maxcount=%lu Name=%s FileId=%llu Cookie=%llu\n", i, num_entries, needed, space_used, maxcount, dirent_array[i - delta].name.name, RES_READDIRPLUS_REPLY.entries[i].fileid, RES_READDIRPLUS_REPLY.entries[i].cookie); /* Set PostPoFh3 structure */ pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.entries[i].name_handle. handle_follows = TRUE; pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.entries[i].name_handle. post_op_fh3_u.handle.data.data_len = sizeof(file_handle_v3_t); nfs_SetPostOpAttr(pcontext, pexport, dirent_array[i - delta].pentry, &entry_attr, &(pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply. entries[i].name_attributes)); RES_READDIRPLUS_REPLY.entries[i].nextentry = NULL; if(i != 0) RES_READDIRPLUS_REPLY.entries[i - 1].nextentry = &(RES_READDIRPLUS_REPLY.entries[i]); } pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.eof = FALSE; } nfs_SetPostOpAttr(pcontext, pexport, dir_pentry, &dir_attr, &(pres->res_readdirplus3.READDIRPLUS3res_u.resok.dir_attributes)); memcpy(pres->res_readdirplus3.READDIRPLUS3res_u.resok.cookieverf, cookie_verifier, sizeof(cookieverf3)); pres->res_readdirplus3.status = NFS3_OK; if((eod_met == END_OF_DIR) && (i == num_entries + delta)) { /* End of directory */ LogFullDebug(COMPONENT_NFS_READDIR, "============================================================> EOD MET !!!!!!\n"); pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.eof = TRUE; } else pres->res_readdirplus3.READDIRPLUS3res_u.resok.reply.eof = FALSE; nfs_SetPostOpAttr(pcontext, pexport, dir_pentry, &dir_attr, &(pres->res_readdirplus3.READDIRPLUS3res_u.resok.dir_attributes)); memcpy(pres->res_readdirplus3.READDIRPLUS3res_u.resok.cookieverf, cookie_verifier, sizeof(cookieverf3)); LogFullDebug(COMPONENT_NFS_READDIR,"============================================================\n"); /* Free the memory */ Mem_Free((char *)dirent_array); Mem_Free((char *)cookie_array); return NFS_REQ_OK; } /* If we are here, there was an error */ /* Free the memory */ Mem_Free((char *)dirent_array); Mem_Free((char *)cookie_array); Mem_Free((char *)entry_name_array); Mem_Free((char *)fh3_array); /* Is this a retryable error */ if(nfs_RetryableError(cache_status)) return NFS_REQ_DROP; /* Set failed status */ nfs_SetFailedStatus(pcontext, pexport, NFS_V3, cache_status, NULL, &pres->res_readdirplus3.status, dir_pentry, &(pres->res_readdirplus3.READDIRPLUS3res_u.resfail.dir_attributes), NULL, NULL, NULL, NULL, NULL, NULL); return NFS_REQ_OK; } /* nfs3_Readdirplus */