diff options
Diffstat (limited to 'src/core/smack-setup.c')
-rw-r--r-- | src/core/smack-setup.c | 167 |
1 files changed, 0 insertions, 167 deletions
diff --git a/src/core/smack-setup.c b/src/core/smack-setup.c deleted file mode 100644 index ff2a02004d..0000000000 --- a/src/core/smack-setup.c +++ /dev/null @@ -1,167 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright (C) 2013 Intel Corporation - Authors: - Nathaniel Chen <nathaniel.chen@intel.com> - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published - by the Free Software Foundation; either version 2.1 of the License, - or (at your option) any later version. - - systemd 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <stdio.h> -#include <errno.h> -#include <string.h> -#include <stdlib.h> -#include <fcntl.h> -#include <dirent.h> - -#include "macro.h" -#include "smack-setup.h" -#include "util.h" -#include "fileio.h" -#include "log.h" - -#define SMACK_CONFIG "/etc/smack/accesses.d/" -#define CIPSO_CONFIG "/etc/smack/cipso.d/" - -#ifdef HAVE_SMACK - -static int write_rules(const char* dstpath, const char* srcdir) { - _cleanup_fclose_ FILE *dst = NULL; - _cleanup_closedir_ DIR *dir = NULL; - struct dirent *entry; - char buf[NAME_MAX]; - int dfd = -1; - int r = 0; - - dst = fopen(dstpath, "we"); - if (!dst) { - if (errno != ENOENT) - log_warning_errno(errno, "Failed to open %s: %m", dstpath); - return -errno; /* negative error */ - } - - /* write rules to dst from every file in the directory */ - dir = opendir(srcdir); - if (!dir) { - if (errno != ENOENT) - log_warning_errno(errno, "Failed to opendir %s: %m", srcdir); - return errno; /* positive on purpose */ - } - - dfd = dirfd(dir); - assert(dfd >= 0); - - FOREACH_DIRENT(entry, dir, return 0) { - int fd; - _cleanup_fclose_ FILE *policy = NULL; - - fd = openat(dfd, entry->d_name, O_RDONLY|O_CLOEXEC); - if (fd < 0) { - if (r == 0) - r = -errno; - log_warning_errno(errno, "Failed to open %s: %m", entry->d_name); - continue; - } - - policy = fdopen(fd, "re"); - if (!policy) { - if (r == 0) - r = -errno; - safe_close(fd); - log_error_errno(errno, "Failed to open %s: %m", entry->d_name); - continue; - } - - /* load2 write rules in the kernel require a line buffered stream */ - FOREACH_LINE(buf, policy, - log_error_errno(errno, "Failed to read line from %s: %m", - entry->d_name)) { - if (!fputs(buf, dst)) { - if (r == 0) - r = -EINVAL; - log_error("Failed to write line to %s", dstpath); - break; - } - if (fflush(dst)) { - if (r == 0) - r = -errno; - log_error_errno(errno, "Failed to flush writes to %s: %m", dstpath); - break; - } - } - } - - return r; -} - -#endif - -int mac_smack_setup(bool *loaded_policy) { - -#ifdef HAVE_SMACK - - int r; - - assert(loaded_policy); - - r = write_rules("/sys/fs/smackfs/load2", SMACK_CONFIG); - switch(r) { - case -ENOENT: - log_debug("Smack is not enabled in the kernel."); - return 0; - case ENOENT: - log_debug("Smack access rules directory " SMACK_CONFIG " not found"); - return 0; - case 0: - log_info("Successfully loaded Smack policies."); - break; - default: - log_warning("Failed to load Smack access rules: %s, ignoring.", - strerror(abs(r))); - return 0; - } - -#ifdef SMACK_RUN_LABEL - r = write_string_file("/proc/self/attr/current", SMACK_RUN_LABEL); - if (r) - log_warning("Failed to set SMACK label \"%s\" on self: %s", - SMACK_RUN_LABEL, strerror(-r)); -#endif - - r = write_rules("/sys/fs/smackfs/cipso2", CIPSO_CONFIG); - switch(r) { - case -ENOENT: - log_debug("Smack/CIPSO is not enabled in the kernel."); - return 0; - case ENOENT: - log_debug("Smack/CIPSO access rules directory " CIPSO_CONFIG " not found"); - return 0; - case 0: - log_info("Successfully loaded Smack/CIPSO policies."); - break; - default: - log_warning("Failed to load Smack/CIPSO access rules: %s, ignoring.", - strerror(abs(r))); - return 0; - } - - *loaded_policy = true; - -#endif - - return 0; -} |