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https://gitlab.com/apparmor/apparmor.git
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d98c5c4cf9
Message queue rules take the following format:
mqueue [<access_mode>] [<type>] [<label>] [<mqueue name>],
access_mode := 'r'|'w'|'rw'|'read'|'write'|
'create'|'open'|'delete'|
'getattr'|'setattr'
type := 'type' '=' ('posix'|'sysv')
label := 'label' '=' <target label>
Signed-off-by: Georgia Garcia <georgia.garcia@canonical.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>
111 lines
3.1 KiB
C++
111 lines
3.1 KiB
C++
/*
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* Copyright (c) 2022
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* Canonical Ltd. (All rights reserved)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of version 2 of the GNU General Public
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* License published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, contact Novell, Inc. or Canonical
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* Ltd.
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*/
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/* sysv and posix mqueue mediation. */
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#ifndef __AA_MQUEUE_H
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#define __AA_MQUEUE_H
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#include "immunix.h"
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#include "parser.h"
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#define AA_MQUEUE_WRITE AA_MAY_WRITE
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#define AA_MQUEUE_READ AA_MAY_READ
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#define AA_MQUEUE_CREATE 0x0010 /* create */
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#define AA_MQUEUE_DELETE 0x0020 /* destroy, unlink */
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#define AA_MQUEUE_OPEN 0x0040 /* associate */
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#define AA_MQUEUE_RENAME 0x0080 /* ?? pair */
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#define AA_MQUEUE_SETATTR 0x0100 /* setattr */
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#define AA_MQUEUE_GETATTR 0x0200 /* getattr */
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#define AA_MQUEUE_CHMOD 0x1000 /* pair */
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#define AA_MQUEUE_CHOWN 0x2000 /* pair */
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#define AA_MQUEUE_CHGRP 0x4000 /* pair */
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#define AA_MQUEUE_LOCK 0x8000 /* LINK_SUBSET overlaid */
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/* sysv and posix mqueues use different terminology, allow mapping
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* between. To be as common as possible.
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*
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* sysv and posix mqueues have different levels of mediation possible
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* in the kernel. Only the most basic mqueue rules can be shared
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* eg.
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* mqueue rw,
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* mqueue rw label=foo,
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*
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* kernel doesn't allow for us to control
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* - posix
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* - notify
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* - getattr/setattr
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* - labels at anything other than mqueue label, via mqueue inode.
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*/
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#define AA_VALID_POSIX_MQ_PERMS (AA_MQUEUE_WRITE | AA_MQUEUE_READ | \
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AA_MQUEUE_CREATE | AA_MQUEUE_DELETE | \
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AA_MQUEUE_OPEN)
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/* TBD - for now make it wider than posix */
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#define AA_VALID_SYSV_MQ_PERMS (AA_MQUEUE_WRITE | AA_MQUEUE_READ | \
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AA_MQUEUE_CREATE | AA_MQUEUE_DELETE | \
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AA_MQUEUE_OPEN | \
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AA_MQUEUE_SETATTR | AA_MQUEUE_GETATTR)
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#define AA_VALID_MQUEUE_PERMS (AA_VALID_POSIX_MQ_PERMS | \
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AA_VALID_SYSV_MQ_PERMS)
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// warning getting into overlap area
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/* Type of mqueue - can be explicit or implied by rule id/path */
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typedef enum mqueue_type {
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mqueue_unspecified,
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mqueue_posix,
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mqueue_sysv
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} mqueue_type;
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int parse_mqueue_mode(const char *str_mode, int *mode, int fail);
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class mqueue_rule: public rule_t {
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void move_conditionals(struct cond_entry *conds);
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public:
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mqueue_type qtype;
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char *qname;
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char *label;
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int mode;
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int audit;
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int deny;
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mqueue_rule(int mode, struct cond_entry *conds, char *qname = NULL);
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virtual ~mqueue_rule()
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{
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free(qname);
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free(label);
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};
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virtual ostream &dump(ostream &os);
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virtual int expand_variables(void);
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virtual int gen_policy_re(Profile &prof);
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virtual void post_process(Profile &prof unused) { };
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protected:
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virtual void warn_once(const char *name) override;
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void validate_qname(void);
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};
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#endif /* __AA_MQUEUE_H */
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