X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=kernel%2Faudit.h;h=2554bd524fd1a67cdb694ef7ff230f8e3dc809cf;hb=77034937dc4575ca0a76bf209838ecd39e804089;hp=bc5392076e2be43349caa39ad5c42b2ea1520fd6;hpb=74d89c16735d83349ea74232031819e989a49156;p=linux-2.6 diff --git a/kernel/audit.h b/kernel/audit.h index bc5392076e..2554bd524f 100644 --- a/kernel/audit.h +++ b/kernel/audit.h @@ -19,9 +19,9 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ -#include #include #include +#include /* 0 = no checking 1 = put_count checking @@ -53,12 +53,29 @@ enum audit_state { }; /* Rule lists */ +struct audit_parent; + +struct audit_watch { + atomic_t count; /* reference count */ + char *path; /* insertion path */ + dev_t dev; /* associated superblock device */ + unsigned long ino; /* associated inode number */ + struct audit_parent *parent; /* associated parent */ + struct list_head wlist; /* entry in parent->watches list */ + struct list_head rules; /* associated rules */ +}; + struct audit_field { - u32 type; - u32 val; - u32 op; + u32 type; + u32 val; + u32 op; + char *se_str; + struct selinux_audit_rule *se_rule; }; +struct audit_tree; +struct audit_chunk; + struct audit_krule { int vers_ops; u32 flags; @@ -67,7 +84,13 @@ struct audit_krule { 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 list_head rlist; /* entry in audit_{watch,tree}.rules list */ }; struct audit_entry { @@ -76,13 +99,83 @@ struct audit_entry { struct audit_krule rule; }; - extern int audit_pid; -extern int audit_comparator(const u32 left, const u32 op, const u32 right); +#define AUDIT_INODE_BUCKETS 32 +extern struct list_head audit_inode_hash[AUDIT_INODE_BUCKETS]; + +static inline int audit_hash_ino(u32 ino) +{ + return (ino & (AUDIT_INODE_BUCKETS-1)); +} + +extern int audit_match_class(int class, unsigned syscall); +extern int audit_comparator(const u32 left, const u32 op, const u32 right); +extern int audit_compare_dname_path(const char *dname, const char *path, + int *dirlen); +extern struct sk_buff * audit_make_reply(int pid, int seq, int type, + int done, int multi, + void *payload, int size); 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 void audit_panic(const char *message); -extern struct mutex audit_netlink_mutex; + +struct audit_netlink_list { + int pid; + struct sk_buff_head q; +}; + +int audit_send_list(void *); + +struct inotify_watch; +extern void audit_free_parent(struct inotify_watch *); +extern void audit_handle_ievent(struct inotify_watch *, u32, u32, u32, + const char *, struct inode *); +extern int selinux_audit_rule_update(void); + +extern struct mutex audit_filter_mutex; +extern void audit_free_rule_rcu(struct rcu_head *); + +#ifdef CONFIG_AUDIT_TREE +extern struct audit_chunk *audit_tree_lookup(const struct inode *); +extern void audit_put_chunk(struct audit_chunk *); +extern int audit_tree_match(struct audit_chunk *, struct audit_tree *); +extern int audit_make_tree(struct audit_krule *, char *, u32); +extern int audit_add_tree_rule(struct audit_krule *); +extern int audit_remove_tree_rule(struct audit_krule *); +extern void audit_trim_trees(void); +extern int audit_tag_tree(char *old, char *new); +extern void audit_schedule_prune(void); +extern void audit_prune_trees(void); +extern const char *audit_tree_path(struct audit_tree *); +extern void audit_put_tree(struct audit_tree *); +#else +#define audit_remove_tree_rule(rule) BUG() +#define audit_add_tree_rule(rule) -EINVAL +#define audit_make_tree(rule, str, op) -EINVAL +#define audit_trim_trees() (void)0 +#define audit_put_tree(tree) (void)0 +#define audit_tag_tree(old, new) -EINVAL +#define audit_tree_path(rule) "" /* never called */ +#endif + +extern char *audit_unpack_string(void **, size_t *, size_t); + +#ifdef CONFIG_AUDITSYSCALL +extern int __audit_signal_info(int sig, struct task_struct *t); +static inline int audit_signal_info(int sig, struct task_struct *t) +{ + if (unlikely((audit_pid && t->tgid == audit_pid) || + (audit_signals && !audit_dummy_context()))) + return __audit_signal_info(sig, t); + return 0; +} +extern enum audit_state audit_filter_inodes(struct task_struct *, + struct audit_context *); +extern void audit_set_auditable(struct audit_context *); +#else +#define audit_signal_info(s,t) AUDIT_DISABLED +#define audit_filter_inodes(t,c) AUDIT_DISABLED +#define audit_set_auditable(c) +#endif