c02e7b1ecc
systemd-sysusers.service unit creates system users and groups and it could update /etc/passwd, /etc/group, /etc/shadow and /etc/gshadow. Those files should have '_' smack label because of accessibility. However, if systemd has its own smack label using '--with-smack-run-label' configuration, systemd-sysusers process spawned by systemd(pid:1) has its parent smack label and eventually updated files also is set as its parent smack label. This patch fixes that bug by labeling updated files as '_' smack label when --with-smack-run-label' is enabled.
56 lines
1.8 KiB
C
56 lines
1.8 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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#pragma once
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/***
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This file is part of systemd.
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Copyright 2013 Intel Corporation
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Author: Auke Kok <auke-jan.h.kok@intel.com>
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <stdbool.h>
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#include "macro.h"
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#define SMACK_FLOOR_LABEL "_"
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#define SMACK_STAR_LABEL "*"
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typedef enum SmackAttr {
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SMACK_ATTR_ACCESS = 0,
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SMACK_ATTR_EXEC = 1,
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SMACK_ATTR_MMAP = 2,
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SMACK_ATTR_TRANSMUTE = 3,
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SMACK_ATTR_IPIN = 4,
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SMACK_ATTR_IPOUT = 5,
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_SMACK_ATTR_MAX,
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_SMACK_ATTR_INVALID = -1,
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} SmackAttr;
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bool mac_smack_use(void);
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int mac_smack_fix(const char *path, bool ignore_enoent, bool ignore_erofs);
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const char* smack_attr_to_string(SmackAttr i) _const_;
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SmackAttr smack_attr_from_string(const char *s) _pure_;
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int mac_smack_read(const char *path, SmackAttr attr, char **label);
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int mac_smack_read_fd(int fd, SmackAttr attr, char **label);
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int mac_smack_apply(const char *path, SmackAttr attr, const char *label);
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int mac_smack_apply_fd(int fd, SmackAttr attr, const char *label);
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int mac_smack_apply_pid(pid_t pid, const char *label);
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int mac_smack_copy(const char *dest, const char *src);
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