#ifndef _LINUX_AUDIT_H_
#define _LINUX_AUDIT_H_
-#include <linux/elf-em.h>
+#include <linux/sched.h>
+#include <linux/elf.h>
/* The netlink messages for the audit system is divided into blocks:
* 1000 - 1099 are for commanding the audit system
* 1200 - 1299 messages internal to the audit daemon
* 1300 - 1399 audit event messages
* 1400 - 1499 SE Linux use
- * 1500 - 1599 kernel LSPP events
- * 1600 - 1699 kernel crypto events
- * 1700 - 1799 kernel anomaly records
- * 1800 - 1999 future kernel use (maybe integrity labels and related events)
- * 2000 is for otherwise unclassified kernel audit messages (legacy)
- * 2001 - 2099 unused (kernel)
- * 2100 - 2199 user space anomaly records
- * 2200 - 2299 user space actions taken in response to anomalies
- * 2300 - 2399 user space generated LSPP events
- * 2400 - 2499 user space crypto events
- * 2500 - 2999 future user space (maybe integrity labels and related events)
+ * 1500 - 1999 future use
+ * 2000 is for otherwise unclassified kernel audit messages
*
- * Messages from 1000-1199 are bi-directional. 1200-1299 & 2100 - 2999 are
- * exclusively user space. 1300-2099 is kernel --> user space
- * communication.
+ * Messages from 1000-1199 are bi-directional. 1200-1299 are exclusively user
+ * space. Anything over that is kernel --> user space communication.
*/
#define AUDIT_GET 1000 /* Get status */
#define AUDIT_SET 1001 /* Set status (enable/disable/auditd) */
-#define AUDIT_LIST 1002 /* List syscall rules -- deprecated */
-#define AUDIT_ADD 1003 /* Add syscall rule -- deprecated */
-#define AUDIT_DEL 1004 /* Delete syscall rule -- deprecated */
+#define AUDIT_LIST 1002 /* List syscall filtering rules */
+#define AUDIT_ADD 1003 /* Add syscall filtering rule */
+#define AUDIT_DEL 1004 /* Delete syscall filtering rule */
#define AUDIT_USER 1005 /* Message from userspace -- deprecated */
#define AUDIT_LOGIN 1006 /* Define the login id and information */
#define AUDIT_WATCH_INS 1007 /* Insert file/dir watch entry */
#define AUDIT_WATCH_REM 1008 /* Remove file/dir watch entry */
#define AUDIT_WATCH_LIST 1009 /* List all file/dir watches */
#define AUDIT_SIGNAL_INFO 1010 /* Get info about sender of signal to auditd */
-#define AUDIT_ADD_RULE 1011 /* Add syscall filtering rule */
-#define AUDIT_DEL_RULE 1012 /* Delete syscall filtering rule */
-#define AUDIT_LIST_RULES 1013 /* List syscall filtering rules */
#define AUDIT_FIRST_USER_MSG 1100 /* Userspace messages mostly uninteresting to kernel */
#define AUDIT_USER_AVC 1107 /* We filter this differently */
#define AUDIT_LAST_USER_MSG 1199
-#define AUDIT_FIRST_USER_MSG2 2100 /* More user space messages */
-#define AUDIT_LAST_USER_MSG2 2999
#define AUDIT_DAEMON_START 1200 /* Daemon startup record */
#define AUDIT_DAEMON_END 1201 /* Daemon normal stop record */
#define AUDIT_CONFIG_CHANGE 1305 /* Audit system configuration change */
#define AUDIT_SOCKADDR 1306 /* sockaddr copied as syscall arg */
#define AUDIT_CWD 1307 /* Current working directory */
-#define AUDIT_EXECVE 1309 /* execve arguments */
-#define AUDIT_IPC_SET_PERM 1311 /* IPC new permissions record type */
-#define AUDIT_MQ_OPEN 1312 /* POSIX MQ open record type */
-#define AUDIT_MQ_SENDRECV 1313 /* POSIX MQ send/receive record type */
-#define AUDIT_MQ_NOTIFY 1314 /* POSIX MQ notify record type */
-#define AUDIT_MQ_GETSETATTR 1315 /* POSIX MQ get/set attribute record type */
#define AUDIT_AVC 1400 /* SE Linux avc denial or grant */
#define AUDIT_SELINUX_ERR 1401 /* Internal SE Linux Errors */
#define AUDIT_AVC_PATH 1402 /* dentry, vfsmount pair from avc */
-#define AUDIT_MAC_POLICY_LOAD 1403 /* Policy file load */
-#define AUDIT_MAC_STATUS 1404 /* Changed enforcing,permissive,off */
-#define AUDIT_MAC_CONFIG_CHANGE 1405 /* Changes to booleans */
-
-#define AUDIT_FIRST_KERN_ANOM_MSG 1700
-#define AUDIT_LAST_KERN_ANOM_MSG 1799
-#define AUDIT_ANOM_PROMISCUOUS 1700 /* Device changed promiscuous mode */
#define AUDIT_KERNEL 2000 /* Asynchronous audit record. NOT A REQUEST. */
#define AUDIT_FILTER_ENTRY 0x02 /* Apply rule at syscall entry */
#define AUDIT_FILTER_WATCH 0x03 /* Apply rule to file system watches */
#define AUDIT_FILTER_EXIT 0x04 /* Apply rule at syscall exit */
-#define AUDIT_FILTER_TYPE 0x05 /* Apply rule at audit_log_start */
-#define AUDIT_NR_FILTERS 6
+#define AUDIT_NR_FILTERS 5
#define AUDIT_FILTER_PREPEND 0x10 /* Prepend to front of list */
/* Rule structure sizes -- if these change, different AUDIT_ADD and
* AUDIT_LIST commands must be implemented. */
#define AUDIT_MAX_FIELDS 64
-#define AUDIT_MAX_KEY_LEN 32
#define AUDIT_BITMASK_SIZE 64
#define AUDIT_WORD(nr) ((__u32)((nr)/32))
#define AUDIT_BIT(nr) (1 << ((nr) - AUDIT_WORD(nr)*32))
-#define AUDIT_SYSCALL_CLASSES 16
-#define AUDIT_CLASS_DIR_WRITE 0
-#define AUDIT_CLASS_DIR_WRITE_32 1
-#define AUDIT_CLASS_CHATTR 2
-#define AUDIT_CLASS_CHATTR_32 3
-#define AUDIT_CLASS_READ 4
-#define AUDIT_CLASS_READ_32 5
-#define AUDIT_CLASS_WRITE 6
-#define AUDIT_CLASS_WRITE_32 7
-
-/* This bitmask is used to validate user input. It represents all bits that
- * are currently used in an audit field constant understood by the kernel.
- * If you are adding a new #define AUDIT_<whatever>, please ensure that
- * AUDIT_UNUSED_BITS is updated if need be. */
-#define AUDIT_UNUSED_BITS 0x0FFFFC00
-
-
/* Rule fields */
/* These are useful when checking the
* task structure at task creation time
#define AUDIT_LOGINUID 9
#define AUDIT_PERS 10
#define AUDIT_ARCH 11
-#define AUDIT_MSGTYPE 12
-#define AUDIT_SUBJ_USER 13 /* security label user */
-#define AUDIT_SUBJ_ROLE 14 /* security label role */
-#define AUDIT_SUBJ_TYPE 15 /* security label type */
-#define AUDIT_SUBJ_SEN 16 /* security label sensitivity label */
-#define AUDIT_SUBJ_CLR 17 /* security label clearance label */
-#define AUDIT_PPID 18
-#define AUDIT_OBJ_USER 19
-#define AUDIT_OBJ_ROLE 20
-#define AUDIT_OBJ_TYPE 21
-#define AUDIT_OBJ_LEV_LOW 22
-#define AUDIT_OBJ_LEV_HIGH 23
/* These are ONLY useful when checking
* at syscall exit time (AUDIT_AT_EXIT). */
#define AUDIT_INODE 102
#define AUDIT_EXIT 103
#define AUDIT_SUCCESS 104 /* exit >= 0; value ignored */
-#define AUDIT_WATCH 105
-#define AUDIT_PERM 106
#define AUDIT_ARG0 200
#define AUDIT_ARG1 (AUDIT_ARG0+1)
#define AUDIT_ARG2 (AUDIT_ARG0+2)
#define AUDIT_ARG3 (AUDIT_ARG0+3)
-#define AUDIT_FILTERKEY 210
-
-#define AUDIT_NEGATE 0x80000000
+#define AUDIT_NEGATE 0x80000000
-/* These are the supported operators.
- * 4 2 1
- * = > <
- * -------
- * 0 0 0 0 nonsense
- * 0 0 1 1 <
- * 0 1 0 2 >
- * 0 1 1 3 !=
- * 1 0 0 4 =
- * 1 0 1 5 <=
- * 1 1 0 6 >=
- * 1 1 1 7 all operators
- */
-#define AUDIT_LESS_THAN 0x10000000
-#define AUDIT_GREATER_THAN 0x20000000
-#define AUDIT_NOT_EQUAL 0x30000000
-#define AUDIT_EQUAL 0x40000000
-#define AUDIT_LESS_THAN_OR_EQUAL (AUDIT_LESS_THAN|AUDIT_EQUAL)
-#define AUDIT_GREATER_THAN_OR_EQUAL (AUDIT_GREATER_THAN|AUDIT_EQUAL)
-#define AUDIT_OPERATORS (AUDIT_EQUAL|AUDIT_NOT_EQUAL)
/* Status symbols */
/* Mask values */
#define AUDIT_ARCH_V850 (EM_V850|__AUDIT_ARCH_LE)
#define AUDIT_ARCH_X86_64 (EM_X86_64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
-#define AUDIT_PERM_EXEC 1
-#define AUDIT_PERM_WRITE 2
-#define AUDIT_PERM_READ 4
-#define AUDIT_PERM_ATTR 8
-
struct audit_status {
__u32 mask; /* Bit mask for valid entries */
__u32 enabled; /* 1 = enabled, 0 = disabled */
__u32 backlog; /* messages waiting in queue */
};
-/* audit_rule_data supports filter rules with both integer and string
- * fields. It corresponds with AUDIT_ADD_RULE, AUDIT_DEL_RULE and
- * AUDIT_LIST_RULES requests.
- */
-struct audit_rule_data {
- __u32 flags; /* AUDIT_PER_{TASK,CALL}, AUDIT_PREPEND */
- __u32 action; /* AUDIT_NEVER, AUDIT_POSSIBLE, AUDIT_ALWAYS */
- __u32 field_count;
- __u32 mask[AUDIT_BITMASK_SIZE]; /* syscall(s) affected */
- __u32 fields[AUDIT_MAX_FIELDS];
- __u32 values[AUDIT_MAX_FIELDS];
- __u32 fieldflags[AUDIT_MAX_FIELDS];
- __u32 buflen; /* total length of string fields */
- char buf[0]; /* string fields buffer */
-};
-
-/* audit_rule is supported to maintain backward compatibility with
- * userspace. It supports integer fields only and corresponds to
- * AUDIT_ADD, AUDIT_DEL and AUDIT_LIST requests.
- */
struct audit_rule { /* for AUDIT_LIST, AUDIT_ADD, and AUDIT_DEL */
__u32 flags; /* AUDIT_PER_{TASK,CALL}, AUDIT_PREPEND */
__u32 action; /* AUDIT_NEVER, AUDIT_POSSIBLE, AUDIT_ALWAYS */
};
#ifdef __KERNEL__
-#include <linux/sched.h>
struct audit_sig_info {
uid_t uid;
pid_t pid;
- char ctx[0];
};
struct audit_buffer;
struct audit_context;
struct inode;
struct netlink_skb_parms;
-struct linux_binprm;
-struct mq_attr;
-struct mqstat;
#define AUDITSC_INVALID 0
#define AUDITSC_SUCCESS 1
#define AUDITSC_FAILURE 2
#define AUDITSC_RESULT(x) ( ((long)(x))<0?AUDITSC_FAILURE:AUDITSC_SUCCESS )
-extern int __init audit_register_class(int class, unsigned *list);
-extern int audit_classify_syscall(int abi, unsigned syscall);
#ifdef CONFIG_AUDITSYSCALL
/* 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_syscall_entry(int arch,
+extern void audit_syscall_entry(struct task_struct *task, int arch,
int major, unsigned long a0, unsigned long a1,
unsigned long a2, unsigned long a3);
-extern void audit_syscall_exit(int failed, long return_code);
-extern void __audit_getname(const char *name);
+extern void audit_syscall_exit(struct task_struct *task, int failed, long return_code);
+extern void audit_getname(const char *name);
extern void audit_putname(const char *name);
-extern void __audit_inode(const char *name, const struct inode *inode);
-extern void __audit_inode_child(const char *dname, const struct inode *inode,
- const struct inode *parent);
-extern void __audit_inode_update(const struct inode *inode);
-static inline int audit_dummy_context(void)
-{
- void *p = current->audit_context;
- return !p || *(int *)p;
-}
-static inline void audit_getname(const char *name)
-{
- if (unlikely(!audit_dummy_context()))
- __audit_getname(name);
-}
-static inline void audit_inode(const char *name, const struct inode *inode) {
- if (unlikely(!audit_dummy_context()))
- __audit_inode(name, inode);
-}
-static inline void audit_inode_child(const char *dname,
- const struct inode *inode,
- const struct inode *parent) {
- if (unlikely(!audit_dummy_context()))
- __audit_inode_child(dname, inode, parent);
-}
-static inline void audit_inode_update(const struct inode *inode) {
- if (unlikely(!audit_dummy_context()))
- __audit_inode_update(inode);
-}
+extern void audit_inode(const char *name, const struct inode *inode, unsigned flags);
/* Private API (for audit.c only) */
+extern int audit_receive_filter(int type, int pid, int uid, int seq,
+ void *data, uid_t loginuid);
extern unsigned int audit_serial(void);
extern void auditsc_get_stamp(struct audit_context *ctx,
struct timespec *t, unsigned int *serial);
extern int audit_set_loginuid(struct task_struct *task, uid_t loginuid);
extern uid_t audit_get_loginuid(struct audit_context *ctx);
-extern int __audit_ipc_obj(struct kern_ipc_perm *ipcp);
-extern int __audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, mode_t mode);
-extern int audit_bprm(struct linux_binprm *bprm);
+extern int audit_ipc_perms(unsigned long qbytes, uid_t uid, gid_t gid, mode_t mode);
extern int audit_socketcall(int nargs, unsigned long *args);
extern int audit_sockaddr(int len, void *addr);
extern int audit_avc_path(struct dentry *dentry, struct vfsmount *mnt);
-extern int audit_set_macxattr(const char *name);
-extern int __audit_mq_open(int oflag, mode_t mode, struct mq_attr __user *u_attr);
-extern int __audit_mq_timedsend(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec __user *u_abs_timeout);
-extern int __audit_mq_timedreceive(mqd_t mqdes, size_t msg_len, unsigned int __user *u_msg_prio, const struct timespec __user *u_abs_timeout);
-extern int __audit_mq_notify(mqd_t mqdes, const struct sigevent __user *u_notification);
-extern int __audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat);
-
-static inline int audit_ipc_obj(struct kern_ipc_perm *ipcp)
-{
- if (unlikely(!audit_dummy_context()))
- return __audit_ipc_obj(ipcp);
- return 0;
-}
-static inline int audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, mode_t mode)
-{
- if (unlikely(!audit_dummy_context()))
- return __audit_ipc_set_perm(qbytes, uid, gid, mode);
- return 0;
-}
-static inline int audit_mq_open(int oflag, mode_t mode, struct mq_attr __user *u_attr)
-{
- if (unlikely(!audit_dummy_context()))
- return __audit_mq_open(oflag, mode, u_attr);
- return 0;
-}
-static inline int audit_mq_timedsend(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec __user *u_abs_timeout)
-{
- if (unlikely(!audit_dummy_context()))
- return __audit_mq_timedsend(mqdes, msg_len, msg_prio, u_abs_timeout);
- return 0;
-}
-static inline int audit_mq_timedreceive(mqd_t mqdes, size_t msg_len, unsigned int __user *u_msg_prio, const struct timespec __user *u_abs_timeout)
-{
- if (unlikely(!audit_dummy_context()))
- return __audit_mq_timedreceive(mqdes, msg_len, u_msg_prio, u_abs_timeout);
- return 0;
-}
-static inline int audit_mq_notify(mqd_t mqdes, const struct sigevent __user *u_notification)
-{
- if (unlikely(!audit_dummy_context()))
- return __audit_mq_notify(mqdes, u_notification);
- return 0;
-}
-static inline int audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat)
-{
- if (unlikely(!audit_dummy_context()))
- return __audit_mq_getsetattr(mqdes, mqstat);
- return 0;
-}
-extern int audit_n_rules;
+extern void audit_signal_info(int sig, struct task_struct *t);
+extern int audit_filter_user(struct netlink_skb_parms *cb, int type);
#else
#define audit_alloc(t) ({ 0; })
#define audit_free(t) do { ; } while (0)
-#define audit_syscall_entry(ta,a,b,c,d,e) do { ; } while (0)
-#define audit_syscall_exit(f,r) do { ; } while (0)
-#define audit_dummy_context() 1
+#define audit_syscall_entry(t,ta,a,b,c,d,e) do { ; } while (0)
+#define audit_syscall_exit(t,f,r) do { ; } while (0)
#define audit_getname(n) do { ; } while (0)
#define audit_putname(n) do { ; } while (0)
-#define __audit_inode(n,i) do { ; } while (0)
-#define __audit_inode_child(d,i,p) do { ; } while (0)
-#define __audit_inode_update(i) do { ; } while (0)
-#define audit_inode(n,i) do { ; } while (0)
-#define audit_inode_child(d,i,p) do { ; } while (0)
-#define audit_inode_update(i) do { ; } while (0)
+#define audit_inode(n,i,f) do { ; } while (0)
+#define audit_receive_filter(t,p,u,s,d,l) ({ -EOPNOTSUPP; })
#define auditsc_get_stamp(c,t,s) do { BUG(); } while (0)
#define audit_get_loginuid(c) ({ -1; })
-#define audit_ipc_obj(i) ({ 0; })
-#define audit_ipc_set_perm(q,u,g,m) ({ 0; })
-#define audit_bprm(p) ({ 0; })
+#define audit_ipc_perms(q,u,g,m) ({ 0; })
#define audit_socketcall(n,a) ({ 0; })
#define audit_sockaddr(len, addr) ({ 0; })
#define audit_avc_path(dentry, mnt) ({ 0; })
-#define audit_set_macxattr(n) do { ; } while (0)
-#define audit_mq_open(o,m,a) ({ 0; })
-#define audit_mq_timedsend(d,l,p,t) ({ 0; })
-#define audit_mq_timedreceive(d,l,p,t) ({ 0; })
-#define audit_mq_notify(d,n) ({ 0; })
-#define audit_mq_getsetattr(d,s) ({ 0; })
-#define audit_n_rules 0
+#define audit_signal_info(s,t) do { ; } while (0)
+#define audit_filter_user(cb,t) ({ 1; })
#endif
#ifdef CONFIG_AUDIT
extern void audit_log_hex(struct audit_buffer *ab,
const unsigned char *buf,
size_t len);
-extern const char * audit_log_untrustedstring(struct audit_buffer *ab,
+extern void audit_log_untrustedstring(struct audit_buffer *ab,
const char *string);
-extern const char * audit_log_n_untrustedstring(struct audit_buffer *ab,
- size_t n,
- const char *string);
extern void audit_log_d_path(struct audit_buffer *ab,
const char *prefix,
struct dentry *dentry,
struct vfsmount *vfsmnt);
- /* Private API (for audit.c only) */
-extern int audit_filter_user(struct netlink_skb_parms *cb, int type);
-extern int audit_filter_type(int type);
-extern int audit_receive_filter(int type, int pid, int uid, int seq,
- void *data, size_t datasz, uid_t loginuid, u32 sid);
+ /* Private API (for auditsc.c only) */
+extern void audit_send_reply(int pid, int seq, int type,
+ int done, int multi,
+ void *payload, int size);
+extern void audit_log_lost(const char *message);
+extern struct semaphore audit_netlink_sem;
#else
#define audit_log(c,g,t,f,...) do { ; } while (0)
#define audit_log_start(c,g,t) ({ NULL; })
#define audit_log_end(b) do { ; } while (0)
#define audit_log_hex(a,b,l) do { ; } while (0)
#define audit_log_untrustedstring(a,s) do { ; } while (0)
-#define audit_log_n_untrustedstring(a,n,s) do { ; } while (0)
#define audit_log_d_path(b,p,d,v) do { ; } while (0)
#endif
#endif
git://git.onelab.eu / linux-2.6.git / blobdiff