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Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program 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 general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
660 lines
18 KiB
C
660 lines
18 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/* audit.h -- Auditing support
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*
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* Copyright 2003-2004 Red Hat Inc., Durham, North Carolina.
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* All Rights Reserved.
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*
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* Written by Rickard E. (Rik) Faith <faith@redhat.com>
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*/
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#ifndef _LINUX_AUDIT_H_
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#define _LINUX_AUDIT_H_
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#include <linux/sched.h>
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#include <linux/ptrace.h>
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#include <linux/namei.h> /* LOOKUP_* */
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#include <uapi/linux/audit.h>
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#define AUDIT_INO_UNSET ((unsigned long)-1)
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#define AUDIT_DEV_UNSET ((dev_t)-1)
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struct audit_sig_info {
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uid_t uid;
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pid_t pid;
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char ctx[0];
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};
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struct audit_buffer;
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struct audit_context;
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struct inode;
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struct netlink_skb_parms;
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struct path;
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struct linux_binprm;
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struct mq_attr;
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struct mqstat;
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struct audit_watch;
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struct audit_tree;
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struct sk_buff;
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struct audit_krule {
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u32 pflags;
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u32 flags;
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u32 listnr;
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u32 action;
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u32 mask[AUDIT_BITMASK_SIZE];
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u32 buflen; /* for data alloc on list rules */
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u32 field_count;
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char *filterkey; /* ties events to rules */
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struct audit_field *fields;
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struct audit_field *arch_f; /* quick access to arch field */
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struct audit_field *inode_f; /* quick access to an inode field */
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struct audit_watch *watch; /* associated watch */
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struct audit_tree *tree; /* associated watched tree */
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struct audit_fsnotify_mark *exe;
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struct list_head rlist; /* entry in audit_{watch,tree}.rules list */
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struct list_head list; /* for AUDIT_LIST* purposes only */
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u64 prio;
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};
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/* Flag to indicate legacy AUDIT_LOGINUID unset usage */
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#define AUDIT_LOGINUID_LEGACY 0x1
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struct audit_field {
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u32 type;
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union {
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u32 val;
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kuid_t uid;
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kgid_t gid;
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struct {
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char *lsm_str;
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void *lsm_rule;
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};
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};
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u32 op;
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};
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enum audit_ntp_type {
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AUDIT_NTP_OFFSET,
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AUDIT_NTP_FREQ,
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AUDIT_NTP_STATUS,
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AUDIT_NTP_TAI,
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AUDIT_NTP_TICK,
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AUDIT_NTP_ADJUST,
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AUDIT_NTP_NVALS /* count */
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};
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#ifdef CONFIG_AUDITSYSCALL
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struct audit_ntp_val {
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long long oldval, newval;
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};
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struct audit_ntp_data {
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struct audit_ntp_val vals[AUDIT_NTP_NVALS];
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};
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#else
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struct audit_ntp_data {};
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#endif
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extern int is_audit_feature_set(int which);
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extern int __init audit_register_class(int class, unsigned *list);
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extern int audit_classify_syscall(int abi, unsigned syscall);
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extern int audit_classify_arch(int arch);
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/* only for compat system calls */
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extern unsigned compat_write_class[];
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extern unsigned compat_read_class[];
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extern unsigned compat_dir_class[];
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extern unsigned compat_chattr_class[];
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extern unsigned compat_signal_class[];
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extern int audit_classify_compat_syscall(int abi, unsigned syscall);
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/* audit_names->type values */
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#define AUDIT_TYPE_UNKNOWN 0 /* we don't know yet */
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#define AUDIT_TYPE_NORMAL 1 /* a "normal" audit record */
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#define AUDIT_TYPE_PARENT 2 /* a parent audit record */
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#define AUDIT_TYPE_CHILD_DELETE 3 /* a child being deleted */
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#define AUDIT_TYPE_CHILD_CREATE 4 /* a child being created */
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/* maximized args number that audit_socketcall can process */
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#define AUDITSC_ARGS 6
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/* bit values for ->signal->audit_tty */
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#define AUDIT_TTY_ENABLE BIT(0)
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#define AUDIT_TTY_LOG_PASSWD BIT(1)
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struct filename;
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#define AUDIT_OFF 0
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#define AUDIT_ON 1
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#define AUDIT_LOCKED 2
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#ifdef CONFIG_AUDIT
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/* These are defined in audit.c */
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/* Public API */
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extern __printf(4, 5)
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void audit_log(struct audit_context *ctx, gfp_t gfp_mask, int type,
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const char *fmt, ...);
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extern struct audit_buffer *audit_log_start(struct audit_context *ctx, gfp_t gfp_mask, int type);
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extern __printf(2, 3)
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void audit_log_format(struct audit_buffer *ab, const char *fmt, ...);
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extern void audit_log_end(struct audit_buffer *ab);
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extern bool audit_string_contains_control(const char *string,
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size_t len);
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extern void audit_log_n_hex(struct audit_buffer *ab,
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const unsigned char *buf,
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size_t len);
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extern void audit_log_n_string(struct audit_buffer *ab,
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const char *buf,
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size_t n);
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extern void audit_log_n_untrustedstring(struct audit_buffer *ab,
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const char *string,
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size_t n);
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extern void audit_log_untrustedstring(struct audit_buffer *ab,
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const char *string);
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extern void audit_log_d_path(struct audit_buffer *ab,
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const char *prefix,
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const struct path *path);
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extern void audit_log_key(struct audit_buffer *ab,
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char *key);
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extern void audit_log_link_denied(const char *operation);
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extern void audit_log_lost(const char *message);
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extern int audit_log_task_context(struct audit_buffer *ab);
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extern void audit_log_task_info(struct audit_buffer *ab);
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extern int audit_update_lsm_rules(void);
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/* Private API (for audit.c only) */
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extern int audit_rule_change(int type, int seq, void *data, size_t datasz);
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extern int audit_list_rules_send(struct sk_buff *request_skb, int seq);
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extern int audit_set_loginuid(kuid_t loginuid);
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static inline kuid_t audit_get_loginuid(struct task_struct *tsk)
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{
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return tsk->loginuid;
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}
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static inline unsigned int audit_get_sessionid(struct task_struct *tsk)
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{
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return tsk->sessionid;
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}
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extern u32 audit_enabled;
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#else /* CONFIG_AUDIT */
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static inline __printf(4, 5)
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void audit_log(struct audit_context *ctx, gfp_t gfp_mask, int type,
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const char *fmt, ...)
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{ }
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static inline struct audit_buffer *audit_log_start(struct audit_context *ctx,
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gfp_t gfp_mask, int type)
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{
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return NULL;
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}
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static inline __printf(2, 3)
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void audit_log_format(struct audit_buffer *ab, const char *fmt, ...)
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{ }
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static inline void audit_log_end(struct audit_buffer *ab)
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{ }
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static inline void audit_log_n_hex(struct audit_buffer *ab,
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const unsigned char *buf, size_t len)
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{ }
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static inline void audit_log_n_string(struct audit_buffer *ab,
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const char *buf, size_t n)
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{ }
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static inline void audit_log_n_untrustedstring(struct audit_buffer *ab,
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const char *string, size_t n)
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{ }
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static inline void audit_log_untrustedstring(struct audit_buffer *ab,
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const char *string)
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{ }
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static inline void audit_log_d_path(struct audit_buffer *ab,
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const char *prefix,
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const struct path *path)
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{ }
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static inline void audit_log_key(struct audit_buffer *ab, char *key)
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{ }
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static inline void audit_log_link_denied(const char *string)
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{ }
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static inline int audit_log_task_context(struct audit_buffer *ab)
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{
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return 0;
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}
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static inline void audit_log_task_info(struct audit_buffer *ab)
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{ }
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static inline kuid_t audit_get_loginuid(struct task_struct *tsk)
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{
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return INVALID_UID;
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}
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static inline unsigned int audit_get_sessionid(struct task_struct *tsk)
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{
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return AUDIT_SID_UNSET;
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}
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#define audit_enabled AUDIT_OFF
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#endif /* CONFIG_AUDIT */
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#ifdef CONFIG_AUDIT_COMPAT_GENERIC
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#define audit_is_compat(arch) (!((arch) & __AUDIT_ARCH_64BIT))
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#else
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#define audit_is_compat(arch) false
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#endif
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#ifdef CONFIG_AUDITSYSCALL
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#include <asm/syscall.h> /* for syscall_get_arch() */
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/* These are defined in auditsc.c */
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/* Public API */
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extern int audit_alloc(struct task_struct *task);
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extern void __audit_free(struct task_struct *task);
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extern void __audit_syscall_entry(int major, unsigned long a0, unsigned long a1,
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unsigned long a2, unsigned long a3);
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extern void __audit_syscall_exit(int ret_success, long ret_value);
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extern struct filename *__audit_reusename(const __user char *uptr);
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extern void __audit_getname(struct filename *name);
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#define AUDIT_INODE_PARENT 1 /* dentry represents the parent */
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#define AUDIT_INODE_HIDDEN 2 /* audit record should be hidden */
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#define AUDIT_INODE_NOEVAL 4 /* audit record incomplete */
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extern void __audit_inode(struct filename *name, const struct dentry *dentry,
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unsigned int flags);
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extern void __audit_file(const struct file *);
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extern void __audit_inode_child(struct inode *parent,
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const struct dentry *dentry,
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const unsigned char type);
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extern void audit_seccomp(unsigned long syscall, long signr, int code);
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extern void audit_seccomp_actions_logged(const char *names,
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const char *old_names, int res);
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extern void __audit_ptrace(struct task_struct *t);
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static inline void audit_set_context(struct task_struct *task, struct audit_context *ctx)
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{
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task->audit_context = ctx;
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}
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static inline struct audit_context *audit_context(void)
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{
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return current->audit_context;
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}
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static inline bool audit_dummy_context(void)
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{
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void *p = audit_context();
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return !p || *(int *)p;
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}
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static inline void audit_free(struct task_struct *task)
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{
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if (unlikely(task->audit_context))
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__audit_free(task);
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}
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static inline void audit_syscall_entry(int major, unsigned long a0,
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unsigned long a1, unsigned long a2,
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unsigned long a3)
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{
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if (unlikely(audit_context()))
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__audit_syscall_entry(major, a0, a1, a2, a3);
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}
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static inline void audit_syscall_exit(void *pt_regs)
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{
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if (unlikely(audit_context())) {
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int success = is_syscall_success(pt_regs);
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long return_code = regs_return_value(pt_regs);
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__audit_syscall_exit(success, return_code);
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}
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}
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static inline struct filename *audit_reusename(const __user char *name)
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{
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if (unlikely(!audit_dummy_context()))
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return __audit_reusename(name);
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return NULL;
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}
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static inline void audit_getname(struct filename *name)
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{
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if (unlikely(!audit_dummy_context()))
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__audit_getname(name);
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}
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static inline void audit_inode(struct filename *name,
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const struct dentry *dentry,
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unsigned int flags) {
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if (unlikely(!audit_dummy_context())) {
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unsigned int aflags = 0;
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if (flags & LOOKUP_PARENT)
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aflags |= AUDIT_INODE_PARENT;
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if (flags & LOOKUP_NO_EVAL)
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aflags |= AUDIT_INODE_NOEVAL;
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__audit_inode(name, dentry, aflags);
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}
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}
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static inline void audit_file(struct file *file)
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{
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if (unlikely(!audit_dummy_context()))
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__audit_file(file);
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}
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static inline void audit_inode_parent_hidden(struct filename *name,
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const struct dentry *dentry)
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{
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if (unlikely(!audit_dummy_context()))
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__audit_inode(name, dentry,
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AUDIT_INODE_PARENT | AUDIT_INODE_HIDDEN);
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}
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static inline void audit_inode_child(struct inode *parent,
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const struct dentry *dentry,
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const unsigned char type) {
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if (unlikely(!audit_dummy_context()))
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__audit_inode_child(parent, dentry, type);
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}
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void audit_core_dumps(long signr);
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static inline void audit_ptrace(struct task_struct *t)
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{
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if (unlikely(!audit_dummy_context()))
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__audit_ptrace(t);
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}
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/* Private API (for audit.c only) */
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extern void __audit_ipc_obj(struct kern_ipc_perm *ipcp);
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extern void __audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, umode_t mode);
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extern void __audit_bprm(struct linux_binprm *bprm);
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extern int __audit_socketcall(int nargs, unsigned long *args);
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extern int __audit_sockaddr(int len, void *addr);
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extern void __audit_fd_pair(int fd1, int fd2);
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extern void __audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr);
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extern void __audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec64 *abs_timeout);
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extern void __audit_mq_notify(mqd_t mqdes, const struct sigevent *notification);
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extern void __audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat);
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extern int __audit_log_bprm_fcaps(struct linux_binprm *bprm,
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const struct cred *new,
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const struct cred *old);
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extern void __audit_log_capset(const struct cred *new, const struct cred *old);
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extern void __audit_mmap_fd(int fd, int flags);
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extern void __audit_log_kern_module(char *name);
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extern void __audit_fanotify(unsigned int response);
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extern void __audit_tk_injoffset(struct timespec64 offset);
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extern void __audit_ntp_log(const struct audit_ntp_data *ad);
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static inline void audit_ipc_obj(struct kern_ipc_perm *ipcp)
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{
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if (unlikely(!audit_dummy_context()))
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__audit_ipc_obj(ipcp);
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}
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static inline void audit_fd_pair(int fd1, int fd2)
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{
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if (unlikely(!audit_dummy_context()))
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__audit_fd_pair(fd1, fd2);
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}
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static inline void audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, umode_t mode)
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{
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if (unlikely(!audit_dummy_context()))
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__audit_ipc_set_perm(qbytes, uid, gid, mode);
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}
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static inline void audit_bprm(struct linux_binprm *bprm)
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{
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if (unlikely(!audit_dummy_context()))
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__audit_bprm(bprm);
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}
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static inline int audit_socketcall(int nargs, unsigned long *args)
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{
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if (unlikely(!audit_dummy_context()))
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return __audit_socketcall(nargs, args);
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return 0;
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}
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static inline int audit_socketcall_compat(int nargs, u32 *args)
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{
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unsigned long a[AUDITSC_ARGS];
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int i;
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if (audit_dummy_context())
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return 0;
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for (i = 0; i < nargs; i++)
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a[i] = (unsigned long)args[i];
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return __audit_socketcall(nargs, a);
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}
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static inline int audit_sockaddr(int len, void *addr)
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{
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if (unlikely(!audit_dummy_context()))
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return __audit_sockaddr(len, addr);
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return 0;
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}
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static inline void audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr)
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{
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if (unlikely(!audit_dummy_context()))
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__audit_mq_open(oflag, mode, attr);
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}
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static inline void audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec64 *abs_timeout)
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{
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if (unlikely(!audit_dummy_context()))
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__audit_mq_sendrecv(mqdes, msg_len, msg_prio, abs_timeout);
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}
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static inline void audit_mq_notify(mqd_t mqdes, const struct sigevent *notification)
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{
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if (unlikely(!audit_dummy_context()))
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__audit_mq_notify(mqdes, notification);
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}
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static inline void audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat)
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{
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if (unlikely(!audit_dummy_context()))
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__audit_mq_getsetattr(mqdes, mqstat);
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}
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static inline int audit_log_bprm_fcaps(struct linux_binprm *bprm,
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const struct cred *new,
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const struct cred *old)
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{
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if (unlikely(!audit_dummy_context()))
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return __audit_log_bprm_fcaps(bprm, new, old);
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return 0;
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}
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static inline void audit_log_capset(const struct cred *new,
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const struct cred *old)
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{
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if (unlikely(!audit_dummy_context()))
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__audit_log_capset(new, old);
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}
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static inline void audit_mmap_fd(int fd, int flags)
|
|
{
|
|
if (unlikely(!audit_dummy_context()))
|
|
__audit_mmap_fd(fd, flags);
|
|
}
|
|
|
|
static inline void audit_log_kern_module(char *name)
|
|
{
|
|
if (!audit_dummy_context())
|
|
__audit_log_kern_module(name);
|
|
}
|
|
|
|
static inline void audit_fanotify(unsigned int response)
|
|
{
|
|
if (!audit_dummy_context())
|
|
__audit_fanotify(response);
|
|
}
|
|
|
|
static inline void audit_tk_injoffset(struct timespec64 offset)
|
|
{
|
|
/* ignore no-op events */
|
|
if (offset.tv_sec == 0 && offset.tv_nsec == 0)
|
|
return;
|
|
|
|
if (!audit_dummy_context())
|
|
__audit_tk_injoffset(offset);
|
|
}
|
|
|
|
static inline void audit_ntp_init(struct audit_ntp_data *ad)
|
|
{
|
|
memset(ad, 0, sizeof(*ad));
|
|
}
|
|
|
|
static inline void audit_ntp_set_old(struct audit_ntp_data *ad,
|
|
enum audit_ntp_type type, long long val)
|
|
{
|
|
ad->vals[type].oldval = val;
|
|
}
|
|
|
|
static inline void audit_ntp_set_new(struct audit_ntp_data *ad,
|
|
enum audit_ntp_type type, long long val)
|
|
{
|
|
ad->vals[type].newval = val;
|
|
}
|
|
|
|
static inline void audit_ntp_log(const struct audit_ntp_data *ad)
|
|
{
|
|
if (!audit_dummy_context())
|
|
__audit_ntp_log(ad);
|
|
}
|
|
|
|
extern int audit_n_rules;
|
|
extern int audit_signals;
|
|
#else /* CONFIG_AUDITSYSCALL */
|
|
static inline int audit_alloc(struct task_struct *task)
|
|
{
|
|
return 0;
|
|
}
|
|
static inline void audit_free(struct task_struct *task)
|
|
{ }
|
|
static inline void audit_syscall_entry(int major, unsigned long a0,
|
|
unsigned long a1, unsigned long a2,
|
|
unsigned long a3)
|
|
{ }
|
|
static inline void audit_syscall_exit(void *pt_regs)
|
|
{ }
|
|
static inline bool audit_dummy_context(void)
|
|
{
|
|
return true;
|
|
}
|
|
static inline void audit_set_context(struct task_struct *task, struct audit_context *ctx)
|
|
{ }
|
|
static inline struct audit_context *audit_context(void)
|
|
{
|
|
return NULL;
|
|
}
|
|
static inline struct filename *audit_reusename(const __user char *name)
|
|
{
|
|
return NULL;
|
|
}
|
|
static inline void audit_getname(struct filename *name)
|
|
{ }
|
|
static inline void __audit_inode(struct filename *name,
|
|
const struct dentry *dentry,
|
|
unsigned int flags)
|
|
{ }
|
|
static inline void __audit_inode_child(struct inode *parent,
|
|
const struct dentry *dentry,
|
|
const unsigned char type)
|
|
{ }
|
|
static inline void audit_inode(struct filename *name,
|
|
const struct dentry *dentry,
|
|
unsigned int parent)
|
|
{ }
|
|
static inline void audit_file(struct file *file)
|
|
{
|
|
}
|
|
static inline void audit_inode_parent_hidden(struct filename *name,
|
|
const struct dentry *dentry)
|
|
{ }
|
|
static inline void audit_inode_child(struct inode *parent,
|
|
const struct dentry *dentry,
|
|
const unsigned char type)
|
|
{ }
|
|
static inline void audit_core_dumps(long signr)
|
|
{ }
|
|
static inline void audit_seccomp(unsigned long syscall, long signr, int code)
|
|
{ }
|
|
static inline void audit_seccomp_actions_logged(const char *names,
|
|
const char *old_names, int res)
|
|
{ }
|
|
static inline void audit_ipc_obj(struct kern_ipc_perm *ipcp)
|
|
{ }
|
|
static inline void audit_ipc_set_perm(unsigned long qbytes, uid_t uid,
|
|
gid_t gid, umode_t mode)
|
|
{ }
|
|
static inline void audit_bprm(struct linux_binprm *bprm)
|
|
{ }
|
|
static inline int audit_socketcall(int nargs, unsigned long *args)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int audit_socketcall_compat(int nargs, u32 *args)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void audit_fd_pair(int fd1, int fd2)
|
|
{ }
|
|
static inline int audit_sockaddr(int len, void *addr)
|
|
{
|
|
return 0;
|
|
}
|
|
static inline void audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr)
|
|
{ }
|
|
static inline void audit_mq_sendrecv(mqd_t mqdes, size_t msg_len,
|
|
unsigned int msg_prio,
|
|
const struct timespec64 *abs_timeout)
|
|
{ }
|
|
static inline void audit_mq_notify(mqd_t mqdes,
|
|
const struct sigevent *notification)
|
|
{ }
|
|
static inline void audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat)
|
|
{ }
|
|
static inline int audit_log_bprm_fcaps(struct linux_binprm *bprm,
|
|
const struct cred *new,
|
|
const struct cred *old)
|
|
{
|
|
return 0;
|
|
}
|
|
static inline void audit_log_capset(const struct cred *new,
|
|
const struct cred *old)
|
|
{ }
|
|
static inline void audit_mmap_fd(int fd, int flags)
|
|
{ }
|
|
|
|
static inline void audit_log_kern_module(char *name)
|
|
{
|
|
}
|
|
|
|
static inline void audit_fanotify(unsigned int response)
|
|
{ }
|
|
|
|
static inline void audit_tk_injoffset(struct timespec64 offset)
|
|
{ }
|
|
|
|
static inline void audit_ntp_init(struct audit_ntp_data *ad)
|
|
{ }
|
|
|
|
static inline void audit_ntp_set_old(struct audit_ntp_data *ad,
|
|
enum audit_ntp_type type, long long val)
|
|
{ }
|
|
|
|
static inline void audit_ntp_set_new(struct audit_ntp_data *ad,
|
|
enum audit_ntp_type type, long long val)
|
|
{ }
|
|
|
|
static inline void audit_ntp_log(const struct audit_ntp_data *ad)
|
|
{ }
|
|
|
|
static inline void audit_ptrace(struct task_struct *t)
|
|
{ }
|
|
#define audit_n_rules 0
|
|
#define audit_signals 0
|
|
#endif /* CONFIG_AUDITSYSCALL */
|
|
|
|
static inline bool audit_loginuid_set(struct task_struct *tsk)
|
|
{
|
|
return uid_valid(audit_get_loginuid(tsk));
|
|
}
|
|
|
|
static inline void audit_log_string(struct audit_buffer *ab, const char *buf)
|
|
{
|
|
audit_log_n_string(ab, buf, strlen(buf));
|
|
}
|
|
|
|
#endif
|