Something went wrong. Try again.
(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Something went wrong. Try again.
C
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743/* SPDX-License-Identifier: GPL-2.0-or-later *//* audit.h -- Auditing support * * Copyright 2003-2004 Red Hat Inc., Durham, North Carolina. * All Rights Reserved. * * Written by Rickard E. (Rik) Faith <faith@redhat.com> */#ifndef _LINUX_AUDIT_H_#define _LINUX_AUDIT_H_
#include <linux/sched.h>#include <linux/ptrace.h>#include <linux/audit_arch.h>#include <uapi/linux/audit.h>#include <uapi/linux/fanotify.h>
#define AUDIT_STATUS_ALL (AUDIT_STATUS_ENABLED | \ AUDIT_STATUS_FAILURE | \ AUDIT_STATUS_PID | \ AUDIT_STATUS_RATE_LIMIT | \ AUDIT_STATUS_BACKLOG_LIMIT | \ AUDIT_STATUS_BACKLOG_WAIT_TIME | \ AUDIT_STATUS_LOST | \ AUDIT_STATUS_BACKLOG_WAIT_TIME_ACTUAL)
#define AUDIT_INO_UNSET ((u64)-1)#define AUDIT_DEV_UNSET ((dev_t)-1)
struct audit_sig_info { uid_t uid; pid_t pid; char ctx[];};
struct audit_buffer;struct audit_context;struct inode;struct netlink_skb_parms;struct path;struct linux_binprm;struct mq_attr;struct mqstat;struct audit_watch;struct audit_tree;struct sk_buff;struct kern_ipc_perm;struct lsm_id;struct lsm_prop;
struct audit_krule { u32 pflags; u32 flags; u32 listnr; u32 action; u32 mask[AUDIT_BITMASK_SIZE]; u32 buflen; /* for data alloc on list rules */ u32 field_count; char *filterkey; /* ties events to rules */ struct audit_field *fields; struct audit_field *arch_f; /* quick access to arch field */ struct audit_field *inode_f; /* quick access to an inode field */ struct audit_watch *watch; /* associated watch */ struct audit_tree *tree; /* associated watched tree */ struct audit_fsnotify_mark *exe; struct list_head rlist; /* entry in audit_{watch,tree}.rules list */ struct list_head list; /* for AUDIT_LIST* purposes only */ u64 prio;};
/* Flag to indicate legacy AUDIT_LOGINUID unset usage */#define AUDIT_LOGINUID_LEGACY 0x1
struct audit_field { u32 type; union { u32 val; kuid_t uid; kgid_t gid; struct { char *lsm_str; void *lsm_rule; }; }; u32 op;};
enum audit_ntp_type { AUDIT_NTP_OFFSET, AUDIT_NTP_FREQ, AUDIT_NTP_STATUS, AUDIT_NTP_TAI, AUDIT_NTP_TICK, AUDIT_NTP_ADJUST,
AUDIT_NTP_NVALS /* count */};
#ifdef CONFIG_AUDITSYSCALLstruct audit_ntp_val { long long oldval, newval;};
struct audit_ntp_data { struct audit_ntp_val vals[AUDIT_NTP_NVALS];};#elsestruct audit_ntp_data {};#endif
enum audit_nfcfgop { AUDIT_XT_OP_REGISTER, AUDIT_XT_OP_REPLACE, AUDIT_XT_OP_UNREGISTER, AUDIT_NFT_OP_TABLE_REGISTER, AUDIT_NFT_OP_TABLE_UNREGISTER, AUDIT_NFT_OP_CHAIN_REGISTER, AUDIT_NFT_OP_CHAIN_UNREGISTER, AUDIT_NFT_OP_RULE_REGISTER, AUDIT_NFT_OP_RULE_UNREGISTER, AUDIT_NFT_OP_SET_REGISTER, AUDIT_NFT_OP_SET_UNREGISTER, AUDIT_NFT_OP_SETELEM_REGISTER, AUDIT_NFT_OP_SETELEM_UNREGISTER, AUDIT_NFT_OP_GEN_REGISTER, AUDIT_NFT_OP_OBJ_REGISTER, AUDIT_NFT_OP_OBJ_UNREGISTER, AUDIT_NFT_OP_OBJ_RESET, AUDIT_NFT_OP_FLOWTABLE_REGISTER, AUDIT_NFT_OP_FLOWTABLE_UNREGISTER, AUDIT_NFT_OP_SETELEM_RESET, AUDIT_NFT_OP_RULE_RESET, AUDIT_NFT_OP_INVALID,};
extern int __init audit_register_class(int class, unsigned int *list);extern int audit_classify_syscall(int abi, unsigned int syscall);extern int audit_classify_arch(int arch);
/* audit_names->type values */#define AUDIT_TYPE_UNKNOWN 0 /* we don't know yet */#define AUDIT_TYPE_NORMAL 1 /* a "normal" audit record */#define AUDIT_TYPE_PARENT 2 /* a parent audit record */#define AUDIT_TYPE_CHILD_DELETE 3 /* a child being deleted */#define AUDIT_TYPE_CHILD_CREATE 4 /* a child being created */
/* maximized args number that audit_socketcall can process */#define AUDITSC_ARGS 6
/* bit values for ->signal->audit_tty */#define AUDIT_TTY_ENABLE BIT(0)#define AUDIT_TTY_LOG_PASSWD BIT(1)
/* bit values for audit_cfg_lsm */#define AUDIT_CFG_LSM_SECCTX_SUBJECT BIT(0)#define AUDIT_CFG_LSM_SECCTX_OBJECT BIT(1)
struct filename;
#define AUDIT_OFF 0#define AUDIT_ON 1#define AUDIT_LOCKED 2#ifdef CONFIG_AUDIT/* These are defined in audit.c */ /* Public API */extern __printf(4, 5)void audit_log(struct audit_context *ctx, gfp_t gfp_mask, int type, const char *fmt, ...);
extern struct audit_buffer *audit_log_start(struct audit_context *ctx, gfp_t gfp_mask, int type);extern __printf(2, 3)void audit_log_format(struct audit_buffer *ab, const char *fmt, ...);extern void audit_log_end(struct audit_buffer *ab);extern bool audit_string_contains_control(const char *string, size_t len);extern void audit_log_n_hex(struct audit_buffer *ab, const unsigned char *buf, size_t len);extern void audit_log_n_string(struct audit_buffer *ab, const char *buf, size_t n);extern void audit_log_n_untrustedstring(struct audit_buffer *ab, const char *string, size_t n);extern void audit_log_untrustedstring(struct audit_buffer *ab, const char *string);extern void audit_log_d_path(struct audit_buffer *ab, const char *prefix, const struct path *path);extern void audit_log_key(struct audit_buffer *ab, char *key);extern void audit_log_path_denied(int type, const char *operation);extern void audit_log_lost(const char *message);
extern int audit_log_subj_ctx(struct audit_buffer *ab, struct lsm_prop *prop);extern int audit_log_obj_ctx(struct audit_buffer *ab, struct lsm_prop *prop);extern int audit_log_task_context(struct audit_buffer *ab);extern void audit_log_task_info(struct audit_buffer *ab);extern int audit_log_nf_skb(struct audit_buffer *ab, const struct sk_buff *skb, u8 nfproto);
extern int audit_update_lsm_rules(void);
/* Private API (for audit.c only) */extern int audit_rule_change(int type, int seq, void *data, size_t datasz);extern int audit_list_rules_send(struct sk_buff *request_skb, int seq);
extern int audit_set_loginuid(kuid_t loginuid);
static inline kuid_t audit_get_loginuid(struct task_struct *tsk){ return tsk->loginuid;}
static inline unsigned int audit_get_sessionid(struct task_struct *tsk){ return tsk->sessionid;}
extern u32 audit_enabled;
extern int audit_signal_info(int sig, struct task_struct *t);
extern void audit_cfg_lsm(const struct lsm_id *lsmid, int flags);
#else /* CONFIG_AUDIT */static inline __printf(4, 5)void audit_log(struct audit_context *ctx, gfp_t gfp_mask, int type, const char *fmt, ...){ }static inline struct audit_buffer *audit_log_start(struct audit_context *ctx, gfp_t gfp_mask, int type){ return NULL;}static inline __printf(2, 3)void audit_log_format(struct audit_buffer *ab, const char *fmt, ...){ }static inline void audit_log_end(struct audit_buffer *ab){ }static inline void audit_log_n_hex(struct audit_buffer *ab, const unsigned char *buf, size_t len){ }static inline void audit_log_n_string(struct audit_buffer *ab, const char *buf, size_t n){ }static inline void audit_log_n_untrustedstring(struct audit_buffer *ab, const char *string, size_t n){ }static inline void audit_log_untrustedstring(struct audit_buffer *ab, const char *string){ }static inline void audit_log_d_path(struct audit_buffer *ab, const char *prefix, const struct path *path){ }static inline void audit_log_key(struct audit_buffer *ab, char *key){ }static inline void audit_log_path_denied(int type, const char *operation){ }static inline int audit_log_subj_ctx(struct audit_buffer *ab, struct lsm_prop *prop){ return 0;}static inline int audit_log_obj_ctx(struct audit_buffer *ab, struct lsm_prop *prop){ return 0;}static inline int audit_log_task_context(struct audit_buffer *ab){ return 0;}static inline void audit_log_task_info(struct audit_buffer *ab){ }
static inline int audit_log_nf_skb(struct audit_buffer *ab, const struct sk_buff *skb, u8 nfproto){ return 0;}
static inline kuid_t audit_get_loginuid(struct task_struct *tsk){ return INVALID_UID;}
static inline unsigned int audit_get_sessionid(struct task_struct *tsk){ return AUDIT_SID_UNSET;}
#define audit_enabled AUDIT_OFF
static inline int audit_signal_info(int sig, struct task_struct *t){ return 0;}
static inline void audit_cfg_lsm(const struct lsm_id *lsmid, int flags){ }
#endif /* CONFIG_AUDIT */
#ifdef CONFIG_AUDIT_COMPAT_GENERIC#define audit_is_compat(arch) (!((arch) & __AUDIT_ARCH_64BIT))#else#define audit_is_compat(arch) false#endif
#define AUDIT_INODE_PARENT 1 /* dentry represents the parent */#define AUDIT_INODE_HIDDEN 2 /* audit record should be hidden */#define AUDIT_INODE_NOEVAL 4 /* audit record incomplete */
#ifdef CONFIG_AUDITSYSCALL#include <asm/syscall.h> /* for syscall_get_arch() */
/* These are defined in auditsc.c */ /* Public API */extern int audit_alloc(struct task_struct *task);extern void __audit_free(struct task_struct *task);extern void __audit_uring_entry(u8 op);extern void __audit_uring_exit(int success, long code);extern void __audit_syscall_entry(int major, unsigned long a0, unsigned long a1, unsigned long a2, unsigned long a3);extern void __audit_syscall_exit(int ret_success, long ret_value);extern void __audit_getname(struct filename *name);extern void __audit_inode(struct filename *name, const struct dentry *dentry, unsigned int flags);extern void __audit_file(const struct file *);extern void __audit_inode_child(struct inode *parent, const struct dentry *dentry, const unsigned char type);extern void audit_seccomp(unsigned long syscall, long signr, int code);extern void audit_seccomp_actions_logged(const char *names, const char *old_names, int res);extern void __audit_ptrace(struct task_struct *t);
static inline void audit_set_context(struct task_struct *task, struct audit_context *ctx){ task->audit_context = ctx;}
static inline struct audit_context *audit_context(void){ return current->audit_context;}
static inline bool audit_dummy_context(void){ void *p = audit_context(); return !p || *(int *)p;}static inline void audit_free(struct task_struct *task){ if (unlikely(task->audit_context)) __audit_free(task);}static inline void audit_uring_entry(u8 op){ /* * We intentionally check audit_context() before audit_enabled as most * Linux systems (as of ~2021) rely on systemd which forces audit to * be enabled regardless of the user's audit configuration. */ if (unlikely(audit_context() && audit_enabled)) __audit_uring_entry(op);}static inline void audit_uring_exit(int success, long code){ if (unlikely(audit_context())) __audit_uring_exit(success, code);}static inline void audit_syscall_entry(int major, unsigned long a0, unsigned long a1, unsigned long a2, unsigned long a3){ if (unlikely(audit_context())) __audit_syscall_entry(major, a0, a1, a2, a3);}static inline void audit_syscall_exit(void *pt_regs){ if (unlikely(audit_context())) { int success = is_syscall_success(pt_regs); long return_code = regs_return_value(pt_regs);
__audit_syscall_exit(success, return_code); }}static inline void audit_getname(struct filename *name){ if (unlikely(!audit_dummy_context())) __audit_getname(name);}static inline void audit_inode(struct filename *name, const struct dentry *dentry, unsigned int aflags) { if (unlikely(!audit_dummy_context())) __audit_inode(name, dentry, aflags);}static inline void audit_file(struct file *file){ if (unlikely(!audit_dummy_context())) __audit_file(file);}static inline void audit_inode_parent_hidden(struct filename *name, const struct dentry *dentry){ if (unlikely(!audit_dummy_context())) __audit_inode(name, dentry, AUDIT_INODE_PARENT | AUDIT_INODE_HIDDEN);}static inline void audit_inode_child(struct inode *parent, const struct dentry *dentry, const unsigned char type) { if (unlikely(!audit_dummy_context())) __audit_inode_child(parent, dentry, type);}void audit_core_dumps(long signr);
static inline void audit_ptrace(struct task_struct *t){ if (unlikely(!audit_dummy_context())) __audit_ptrace(t);}
/* Private API (for audit.c only) */extern void __audit_ipc_obj(struct kern_ipc_perm *ipcp);extern void __audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, umode_t mode);extern void __audit_bprm(struct linux_binprm *bprm);extern int __audit_socketcall(int nargs, unsigned long *args);extern int __audit_sockaddr(int len, void *addr);extern void __audit_fd_pair(int fd1, int fd2);extern void __audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr);extern void __audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec64 *abs_timeout);extern void __audit_mq_notify(mqd_t mqdes, const struct sigevent *notification);extern void __audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat);extern int __audit_log_bprm_fcaps(struct linux_binprm *bprm, const struct cred *new, const struct cred *old);extern void __audit_log_capset(const struct cred *new, const struct cred *old);extern void __audit_mmap_fd(int fd, int flags);extern void __audit_openat2_how(struct open_how *how);extern void __audit_log_kern_module(const char *name);extern void __audit_fanotify(u32 response, struct fanotify_response_info_audit_rule *friar);extern void __audit_tk_injoffset(struct timespec64 offset);extern void __audit_ntp_log(const struct audit_ntp_data *ad);extern void __audit_log_nfcfg(const char *name, u8 af, unsigned int nentries, enum audit_nfcfgop op, gfp_t gfp);
static inline void audit_ipc_obj(struct kern_ipc_perm *ipcp){ if (unlikely(!audit_dummy_context())) __audit_ipc_obj(ipcp);}static inline void audit_fd_pair(int fd1, int fd2){ if (unlikely(!audit_dummy_context())) __audit_fd_pair(fd1, fd2);}static inline void audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, umode_t mode){ if (unlikely(!audit_dummy_context())) __audit_ipc_set_perm(qbytes, uid, gid, mode);}static inline void audit_bprm(struct linux_binprm *bprm){ if (unlikely(!audit_dummy_context())) __audit_bprm(bprm);}static inline int audit_socketcall(int nargs, unsigned long *args){ if (unlikely(!audit_dummy_context())) return __audit_socketcall(nargs, args); return 0;}
static inline int audit_socketcall_compat(int nargs, u32 *args){ unsigned long a[AUDITSC_ARGS]; int i;
if (audit_dummy_context()) return 0;
for (i = 0; i < nargs; i++) a[i] = (unsigned long)args[i]; return __audit_socketcall(nargs, a);}
static inline int audit_sockaddr(int len, void *addr){ if (unlikely(!audit_dummy_context())) return __audit_sockaddr(len, addr); return 0;}static inline void audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr){ if (unlikely(!audit_dummy_context())) __audit_mq_open(oflag, mode, attr);}static inline void audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec64 *abs_timeout){ if (unlikely(!audit_dummy_context())) __audit_mq_sendrecv(mqdes, msg_len, msg_prio, abs_timeout);}static inline void audit_mq_notify(mqd_t mqdes, const struct sigevent *notification){ if (unlikely(!audit_dummy_context())) __audit_mq_notify(mqdes, notification);}static inline void audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat){ if (unlikely(!audit_dummy_context())) __audit_mq_getsetattr(mqdes, mqstat);}
static inline int audit_log_bprm_fcaps(struct linux_binprm *bprm, const struct cred *new, const struct cred *old){ if (unlikely(!audit_dummy_context())) return __audit_log_bprm_fcaps(bprm, new, old); return 0;}
static inline void audit_log_capset(const struct cred *new, const struct cred *old){ if (unlikely(!audit_dummy_context())) __audit_log_capset(new, old);}
static inline void audit_mmap_fd(int fd, int flags){ if (unlikely(!audit_dummy_context())) __audit_mmap_fd(fd, flags);}
static inline void audit_openat2_how(struct open_how *how){ if (unlikely(!audit_dummy_context())) __audit_openat2_how(how);}
static inline void audit_log_kern_module(const char *name){ if (!audit_dummy_context()) __audit_log_kern_module(name);}
static inline void audit_fanotify(u32 response, struct fanotify_response_info_audit_rule *friar){ if (audit_enabled) __audit_fanotify(response, friar);}
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);}
static inline void audit_log_nfcfg(const char *name, u8 af, unsigned int nentries, enum audit_nfcfgop op, gfp_t gfp){ if (audit_enabled) __audit_log_nfcfg(name, af, nentries, op, gfp);}
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_uring_entry(u8 op){ }static inline void audit_uring_exit(int success, long code){ }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 void audit_getname(struct filename *name){ }static inline void audit_inode(struct filename *name, const struct dentry *dentry, unsigned int aflags){ }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_openat2_how(struct open_how *how){ }
static inline void audit_log_kern_module(const char *name){ }
static inline void audit_fanotify(u32 response, struct fanotify_response_info_audit_rule *friar){ }
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){ }
static inline void audit_log_nfcfg(const char *name, u8 af, unsigned int nentries, enum audit_nfcfgop op, gfp_t gfp){ }
#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));}
#endif