199 lines
4.6 KiB
C
199 lines
4.6 KiB
C
/*
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* AppArmor security module
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*
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* This file contains AppArmor auditing function definitions.
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*
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* Copyright (C) 1998-2008 Novell/SUSE
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* Copyright 2009-2010 Canonical Ltd.
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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 the GNU General Public License as
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* published by the Free Software Foundation, version 2 of the
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* License.
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*/
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#ifndef __AA_AUDIT_H
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#define __AA_AUDIT_H
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#include <linux/audit.h>
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#include <linux/fs.h>
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#include <linux/lsm_audit.h>
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#include <linux/sched.h>
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#include <linux/slab.h>
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#include "file.h"
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#include "label.h"
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extern const char *const audit_mode_names[];
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#define AUDIT_MAX_INDEX 5
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enum audit_mode {
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AUDIT_NORMAL, /* follow normal auditing of accesses */
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AUDIT_QUIET_DENIED, /* quiet all denied access messages */
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AUDIT_QUIET, /* quiet all messages */
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AUDIT_NOQUIET, /* do not quiet audit messages */
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AUDIT_ALL /* audit all accesses */
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};
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enum audit_type {
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AUDIT_APPARMOR_AUDIT,
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AUDIT_APPARMOR_ALLOWED,
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AUDIT_APPARMOR_DENIED,
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AUDIT_APPARMOR_HINT,
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AUDIT_APPARMOR_STATUS,
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AUDIT_APPARMOR_ERROR,
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AUDIT_APPARMOR_KILL,
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AUDIT_APPARMOR_AUTO
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};
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#define OP_NULL NULL
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#define OP_SYSCTL "sysctl"
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#define OP_CAPABLE "capable"
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#define OP_UNLINK "unlink"
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#define OP_MKDIR "mkdir"
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#define OP_RMDIR "rmdir"
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#define OP_MKNOD "mknod"
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#define OP_TRUNC "truncate"
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#define OP_LINK "link"
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#define OP_SYMLINK "symlink"
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#define OP_RENAME_SRC "rename_src"
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#define OP_RENAME_DEST "rename_dest"
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#define OP_CHMOD "chmod"
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#define OP_CHOWN "chown"
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#define OP_GETATTR "getattr"
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#define OP_OPEN "open"
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#define OP_FRECEIVE "file_receive"
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#define OP_FPERM "file_perm"
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#define OP_FLOCK "file_lock"
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#define OP_FMMAP "file_mmap"
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#define OP_FMPROT "file_mprotect"
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#define OP_INHERIT "file_inherit"
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#define OP_PIVOTROOT "pivotroot"
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#define OP_MOUNT "mount"
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#define OP_UMOUNT "umount"
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#define OP_CREATE "create"
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#define OP_POST_CREATE "post_create"
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#define OP_BIND "bind"
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#define OP_CONNECT "connect"
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#define OP_LISTEN "listen"
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#define OP_ACCEPT "accept"
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#define OP_SENDMSG "sendmsg"
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#define OP_RECVMSG "recvmsg"
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#define OP_GETSOCKNAME "getsockname"
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#define OP_GETPEERNAME "getpeername"
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#define OP_GETSOCKOPT "getsockopt"
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#define OP_SETSOCKOPT "setsockopt"
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#define OP_SHUTDOWN "socket_shutdown"
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#define OP_PTRACE "ptrace"
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#define OP_SIGNAL "signal"
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#define OP_EXEC "exec"
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#define OP_CHANGE_HAT "change_hat"
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#define OP_CHANGE_PROFILE "change_profile"
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#define OP_CHANGE_ONEXEC "change_onexec"
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#define OP_STACK "stack"
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#define OP_STACK_ONEXEC "stack_onexec"
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#define OP_SETPROCATTR "setprocattr"
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#define OP_SETRLIMIT "setrlimit"
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#define OP_PROF_REPL "profile_replace"
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#define OP_PROF_LOAD "profile_load"
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#define OP_PROF_RM "profile_remove"
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struct apparmor_audit_data {
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int error;
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int type;
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const char *op;
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struct aa_label *label;
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const char *name;
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const char *info;
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u32 request;
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u32 denied;
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union {
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/* these entries require a custom callback fn */
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struct {
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struct aa_label *peer;
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union {
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struct {
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const char *target;
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kuid_t ouid;
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} fs;
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struct {
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int rlim;
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unsigned long max;
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} rlim;
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struct {
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int signal;
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int unmappedsig;
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};
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struct {
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int type, protocol;
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struct sock *peer_sk;
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void *addr;
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int addrlen;
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} net;
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};
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};
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struct {
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struct aa_profile *profile;
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const char *ns;
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long pos;
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} iface;
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struct {
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const char *src_name;
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const char *type;
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const char *trans;
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const char *data;
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unsigned long flags;
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} mnt;
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};
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};
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/* macros for dealing with apparmor_audit_data structure */
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#define aad(SA) ((SA)->apparmor_audit_data)
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#define DEFINE_AUDIT_DATA(NAME, T, X) \
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/* TODO: cleanup audit init so we don't need _aad = {0,} */ \
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struct apparmor_audit_data NAME ## _aad = { .op = (X), }; \
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struct common_audit_data NAME = \
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{ \
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.type = (T), \
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.u.tsk = NULL, \
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}; \
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NAME.apparmor_audit_data = &(NAME ## _aad)
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void aa_audit_msg(int type, struct common_audit_data *sa,
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void (*cb) (struct audit_buffer *, void *));
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int aa_audit(int type, struct aa_profile *profile, struct common_audit_data *sa,
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void (*cb) (struct audit_buffer *, void *));
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#define aa_audit_error(ERROR, SA, CB) \
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({ \
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aad((SA))->error = (ERROR); \
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aa_audit_msg(AUDIT_APPARMOR_ERROR, (SA), (CB)); \
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aad((SA))->error; \
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})
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static inline int complain_error(int error)
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{
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if (error == -EPERM || error == -EACCES)
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return 0;
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return error;
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}
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void aa_audit_rule_free(void *vrule);
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int aa_audit_rule_init(u32 field, u32 op, char *rulestr, void **vrule);
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int aa_audit_rule_known(struct audit_krule *rule);
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int aa_audit_rule_match(u32 sid, u32 field, u32 op, void *vrule,
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struct audit_context *actx);
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#endif /* __AA_AUDIT_H */
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