/* 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){Lines 1–500 of 742. 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/* 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_AUDITSYSCALL struct audit_ntp_val { long long oldval, newval; }; struct audit_ntp_data { struct audit_ntp_val vals[AUDIT_NTP_NVALS]; }; #else struct 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) {