1178825Sdfr/* 2233294Sstas * Copyright (c) 2006 Kungliga Tekniska H��gskolan 3233294Sstas * (Royal Institute of Technology, Stockholm, Sweden). 4233294Sstas * All rights reserved. 5178825Sdfr * 6233294Sstas * Redistribution and use in source and binary forms, with or without 7233294Sstas * modification, are permitted provided that the following conditions 8233294Sstas * are met: 9178825Sdfr * 10233294Sstas * 1. Redistributions of source code must retain the above copyright 11233294Sstas * notice, this list of conditions and the following disclaimer. 12178825Sdfr * 13233294Sstas * 2. Redistributions in binary form must reproduce the above copyright 14233294Sstas * notice, this list of conditions and the following disclaimer in the 15233294Sstas * documentation and/or other materials provided with the distribution. 16178825Sdfr * 17233294Sstas * 3. Neither the name of the Institute nor the names of its contributors 18233294Sstas * may be used to endorse or promote products derived from this software 19233294Sstas * without specific prior written permission. 20178825Sdfr * 21233294Sstas * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 22233294Sstas * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23233294Sstas * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24233294Sstas * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 25233294Sstas * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26233294Sstas * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27233294Sstas * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28233294Sstas * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29233294Sstas * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30233294Sstas * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31233294Sstas * SUCH DAMAGE. 32178825Sdfr */ 33178825Sdfr 34178825Sdfr#include "hx_locl.h" 35178825Sdfr#include <dirent.h> 36178825Sdfr 37178825Sdfr/* 38178825Sdfr * The DIR keyset module is strange compared to the other modules 39178825Sdfr * since it does lazy evaluation and really doesn't keep any local 40178825Sdfr * state except for the directory iteration and cert iteration of 41178825Sdfr * files. DIR ignores most errors so that the consumer doesn't get 42178825Sdfr * failes for stray files in directories. 43178825Sdfr */ 44178825Sdfr 45178825Sdfrstruct dircursor { 46178825Sdfr DIR *dir; 47178825Sdfr hx509_certs certs; 48178825Sdfr void *iter; 49178825Sdfr}; 50178825Sdfr 51178825Sdfr/* 52178825Sdfr * 53178825Sdfr */ 54178825Sdfr 55178825Sdfrstatic int 56178825Sdfrdir_init(hx509_context context, 57233294Sstas hx509_certs certs, void **data, int flags, 58178825Sdfr const char *residue, hx509_lock lock) 59178825Sdfr{ 60178825Sdfr *data = NULL; 61178825Sdfr 62178825Sdfr { 63178825Sdfr struct stat sb; 64178825Sdfr int ret; 65178825Sdfr 66178825Sdfr ret = stat(residue, &sb); 67178825Sdfr if (ret == -1) { 68178825Sdfr hx509_set_error_string(context, 0, ENOENT, 69178825Sdfr "No such file %s", residue); 70178825Sdfr return ENOENT; 71178825Sdfr } 72178825Sdfr 73233294Sstas if (!S_ISDIR(sb.st_mode)) { 74178825Sdfr hx509_set_error_string(context, 0, ENOTDIR, 75178825Sdfr "%s is not a directory", residue); 76178825Sdfr return ENOTDIR; 77178825Sdfr } 78178825Sdfr } 79178825Sdfr 80178825Sdfr *data = strdup(residue); 81178825Sdfr if (*data == NULL) { 82178825Sdfr hx509_clear_error_string(context); 83178825Sdfr return ENOMEM; 84178825Sdfr } 85178825Sdfr 86178825Sdfr return 0; 87178825Sdfr} 88178825Sdfr 89178825Sdfrstatic int 90178825Sdfrdir_free(hx509_certs certs, void *data) 91178825Sdfr{ 92178825Sdfr free(data); 93178825Sdfr return 0; 94178825Sdfr} 95178825Sdfr 96233294Sstasstatic int 97178825Sdfrdir_iter_start(hx509_context context, 98178825Sdfr hx509_certs certs, void *data, void **cursor) 99178825Sdfr{ 100178825Sdfr struct dircursor *d; 101178825Sdfr 102178825Sdfr *cursor = NULL; 103178825Sdfr 104178825Sdfr d = calloc(1, sizeof(*d)); 105178825Sdfr if (d == NULL) { 106178825Sdfr hx509_clear_error_string(context); 107178825Sdfr return ENOMEM; 108178825Sdfr } 109178825Sdfr 110178825Sdfr d->dir = opendir(data); 111178825Sdfr if (d->dir == NULL) { 112178825Sdfr hx509_clear_error_string(context); 113178825Sdfr free(d); 114178825Sdfr return errno; 115178825Sdfr } 116233294Sstas rk_cloexec_dir(d->dir); 117178825Sdfr d->certs = NULL; 118178825Sdfr d->iter = NULL; 119178825Sdfr 120178825Sdfr *cursor = d; 121178825Sdfr return 0; 122178825Sdfr} 123178825Sdfr 124178825Sdfrstatic int 125178825Sdfrdir_iter(hx509_context context, 126178825Sdfr hx509_certs certs, void *data, void *iter, hx509_cert *cert) 127178825Sdfr{ 128178825Sdfr struct dircursor *d = iter; 129178825Sdfr int ret = 0; 130233294Sstas 131178825Sdfr *cert = NULL; 132178825Sdfr 133178825Sdfr do { 134178825Sdfr struct dirent *dir; 135178825Sdfr char *fn; 136178825Sdfr 137178825Sdfr if (d->certs) { 138178825Sdfr ret = hx509_certs_next_cert(context, d->certs, d->iter, cert); 139178825Sdfr if (ret) { 140178825Sdfr hx509_certs_end_seq(context, d->certs, d->iter); 141178825Sdfr d->iter = NULL; 142178825Sdfr hx509_certs_free(&d->certs); 143178825Sdfr return ret; 144178825Sdfr } 145178825Sdfr if (*cert) { 146178825Sdfr ret = 0; 147178825Sdfr break; 148178825Sdfr } 149178825Sdfr hx509_certs_end_seq(context, d->certs, d->iter); 150178825Sdfr d->iter = NULL; 151178825Sdfr hx509_certs_free(&d->certs); 152178825Sdfr } 153178825Sdfr 154178825Sdfr dir = readdir(d->dir); 155178825Sdfr if (dir == NULL) { 156178825Sdfr ret = 0; 157178825Sdfr break; 158178825Sdfr } 159178825Sdfr if (strcmp(dir->d_name, ".") == 0 || strcmp(dir->d_name, "..") == 0) 160178825Sdfr continue; 161233294Sstas 162178825Sdfr if (asprintf(&fn, "FILE:%s/%s", (char *)data, dir->d_name) == -1) 163178825Sdfr return ENOMEM; 164233294Sstas 165178825Sdfr ret = hx509_certs_init(context, fn, 0, NULL, &d->certs); 166178825Sdfr if (ret == 0) { 167178825Sdfr 168178825Sdfr ret = hx509_certs_start_seq(context, d->certs, &d->iter); 169178825Sdfr if (ret) 170178825Sdfr hx509_certs_free(&d->certs); 171178825Sdfr } 172178825Sdfr /* ignore errors */ 173178825Sdfr if (ret) { 174178825Sdfr d->certs = NULL; 175178825Sdfr ret = 0; 176178825Sdfr } 177178825Sdfr 178178825Sdfr free(fn); 179178825Sdfr } while(ret == 0); 180178825Sdfr 181178825Sdfr return ret; 182178825Sdfr} 183178825Sdfr 184178825Sdfr 185178825Sdfrstatic int 186178825Sdfrdir_iter_end(hx509_context context, 187178825Sdfr hx509_certs certs, 188178825Sdfr void *data, 189178825Sdfr void *cursor) 190178825Sdfr{ 191178825Sdfr struct dircursor *d = cursor; 192178825Sdfr 193178825Sdfr if (d->certs) { 194178825Sdfr hx509_certs_end_seq(context, d->certs, d->iter); 195178825Sdfr d->iter = NULL; 196178825Sdfr hx509_certs_free(&d->certs); 197178825Sdfr } 198178825Sdfr closedir(d->dir); 199178825Sdfr free(d); 200178825Sdfr return 0; 201178825Sdfr} 202178825Sdfr 203178825Sdfr 204178825Sdfrstatic struct hx509_keyset_ops keyset_dir = { 205178825Sdfr "DIR", 206178825Sdfr 0, 207178825Sdfr dir_init, 208178825Sdfr NULL, 209178825Sdfr dir_free, 210178825Sdfr NULL, 211178825Sdfr NULL, 212178825Sdfr dir_iter_start, 213178825Sdfr dir_iter, 214178825Sdfr dir_iter_end 215178825Sdfr}; 216178825Sdfr 217178825Sdfrvoid 218178825Sdfr_hx509_ks_dir_register(hx509_context context) 219178825Sdfr{ 220178825Sdfr _hx509_ks_register(context, &keyset_dir); 221178825Sdfr} 222