/* * Copyright (c) 2016 Cisco and/or its affiliates. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ /* * pci.c: Linux user space PCI bus management. * * Copyright (c) 2008 Eliot Dresselhaus * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #include <vlib/vlib.h> #include <vlib/unix/unix.h> #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> #include <dirent.h> clib_error_t * foreach_directory_file (char *dir_name, clib_error_t * (*f) (void *arg, u8 * path_name, u8 * file_name), void *arg, int scan_dirs) { DIR *d; struct dirent *e; clib_error_t *error = 0; u8 *s, *t; d = opendir (dir_name); if (!d) { if (errno == ENOENT) return 0; return clib_error_return_unix (0, "open `%s'", dir_name); } s = t = 0; while (1) { e = readdir (d); if (!e) break; if (scan_dirs) { if (e->d_type == DT_DIR && (!strncmp (e->d_name, ".", 1) || !strncmp (e->d_name, "..", 2))) continue; } else { if (e->d_type == DT_DIR) continue; } s = format (s, "%s/%s", dir_name, e->d_name); t = format (t, "%s", e->d_name); error = f (arg, s, t); _vec_len (s) = 0; _vec_len (t) = 0; if (error) break; } vec_free (s); closedir (d); return error; } clib_error_t * vlib_unix_recursive_mkdir (char *path) { clib_error_t *error = 0; char *c = 0; int i = 0; while (path[i] != 0) { if (c && path[i] == '/') { vec_add1 (c, 0); if ((mkdir (c, 0755)) && (errno != EEXIST)) { error = clib_error_return_unix (0, "mkdir '%s'", c); goto done; } _vec_len (c)--; } vec_add1 (c, path[i]); i++; } if ((mkdir (path, 0755)) && (errno != EEXIST)) { error = clib_error_return_unix (0, "mkdir '%s'", path); goto done; } done: vec_free (c); return error; } clib_error_t * vlib_unix_validate_runtime_file (unix_main_t * um, const char *path, u8 ** full_path) { u8 *fp = 0; char *last_slash = 0; if (path[0] == '\0') { return clib_error_return (0, "path is an empty string"); } else if (strncmp (path, "../", 3) == 0 || strstr (path, "/../")) { return clib_error_return (0, "'..' not allowed in runtime path"); } else if (path[0] == '/') { /* Absolute path. Has to start with runtime directory */ if (strncmp ((char *) um->runtime_dir, path, strlen ((char *) um->runtime_dir))) { return clib_error_return (0, "file %s is not in runtime directory %s", path, um->runtime_dir); } fp = format (0, "%s%c", path, '\0'); } else { /* Relative path, just append to runtime */ fp = format (0, "%s/%s%c", um->runtime_dir, path, '\0'); } /* We don't want to create a directory out of the last file */ if ((last_slash = strrchr ((char *) fp, '/')) != NULL) *last_slash = '\0'; clib_error_t *error = vlib_unix_recursive_mkdir ((char *) fp); if (last_slash != NULL) *last_slash = '/'; if (error) vec_free (fp); *full_path = fp; return error; } /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */