Merge master.kernel.org:/pub/scm/linux/kernel/git/dwmw2/audit-2.6
This commit is contained in:
Linus Torvalds
commit
5d54e69c68
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@ -370,7 +370,10 @@ W: http://atmelwlandriver.sourceforge.net/
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S: Maintained
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AUDIT SUBSYSTEM
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L: linux-audit@redhat.com (subscribers-only)
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P: David Woodhouse
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M: dwmw2@infradead.org
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L: linux-audit@redhat.com
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W: http://people.redhat.com/sgrubb/audit/
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S: Maintained
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AX.25 NETWORK LAYER
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@ -68,6 +68,7 @@ int main(void)
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DEFINE(THREAD_USED_VR, offsetof(struct thread_struct, used_vr));
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#endif /* CONFIG_ALTIVEC */
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DEFINE(MM, offsetof(struct task_struct, mm));
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DEFINE(AUDITCONTEXT, offsetof(struct task_struct, audit_context));
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DEFINE(DCACHEL1LINESIZE, offsetof(struct ppc64_caches, dline_size));
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DEFINE(DCACHEL1LOGLINESIZE, offsetof(struct ppc64_caches, log_dline_size));
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@ -276,12 +276,22 @@ _GLOBAL(ppc64_rt_sigsuspend)
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_GLOBAL(ppc32_rt_sigsuspend)
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bl .save_nvgprs
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bl .sys32_rt_sigsuspend
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/* If sigsuspend() returns zero, we are going into a signal handler */
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70: cmpdi 0,r3,0
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beq .ret_from_except
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/* If it returned -EINTR, we need to return via syscall_exit to set
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/* If it returned an error, we need to return via syscall_exit to set
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the SO bit in cr0 and potentially stop for ptrace. */
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b syscall_exit
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bne syscall_exit
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/* If sigsuspend() returns zero, we are going into a signal handler. We
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may need to call audit_syscall_exit() to mark the exit from sigsuspend() */
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#ifdef CONFIG_AUDIT
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ld r3,PACACURRENT(r13)
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ld r4,AUDITCONTEXT(r3)
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cmpdi 0,r4,0
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beq .ret_from_except /* No audit_context: Leave immediately. */
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li r4, 2 /* AUDITSC_FAILURE */
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li r5,-4 /* It's always -EINTR */
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bl .audit_syscall_exit
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#endif
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b .ret_from_except
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_GLOBAL(ppc_fork)
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bl .save_nvgprs
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@ -1048,7 +1048,7 @@ int fastcall path_lookup(const char *name, unsigned int flags, struct nameidata
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out:
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if (unlikely(current->audit_context
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&& nd && nd->dentry && nd->dentry->d_inode))
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audit_inode(name, nd->dentry->d_inode);
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audit_inode(name, nd->dentry->d_inode, flags);
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return retval;
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}
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@ -51,7 +51,8 @@
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#define AUDIT_WATCH_LIST 1009 /* List all file/dir watches */
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#define AUDIT_SIGNAL_INFO 1010 /* Get info about sender of signal to auditd */
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#define AUDIT_FIRST_USER_MSG 1100 /* Userspace messages uninteresting to kernel */
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#define AUDIT_FIRST_USER_MSG 1100 /* Userspace messages mostly uninteresting to kernel */
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#define AUDIT_USER_AVC 1107 /* We filter this differently */
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#define AUDIT_LAST_USER_MSG 1199
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#define AUDIT_DAEMON_START 1200 /* Daemon startup record */
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@ -75,10 +76,15 @@
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#define AUDIT_KERNEL 2000 /* Asynchronous audit record. NOT A REQUEST. */
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/* Rule flags */
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#define AUDIT_PER_TASK 0x01 /* Apply rule at task creation (not syscall) */
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#define AUDIT_AT_ENTRY 0x02 /* Apply rule at syscall entry */
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#define AUDIT_AT_EXIT 0x04 /* Apply rule at syscall exit */
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#define AUDIT_PREPEND 0x10 /* Prepend to front of list */
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#define AUDIT_FILTER_USER 0x00 /* Apply rule to user-generated messages */
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#define AUDIT_FILTER_TASK 0x01 /* Apply rule at task creation (not syscall) */
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#define AUDIT_FILTER_ENTRY 0x02 /* Apply rule at syscall entry */
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#define AUDIT_FILTER_WATCH 0x03 /* Apply rule to file system watches */
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#define AUDIT_FILTER_EXIT 0x04 /* Apply rule at syscall exit */
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#define AUDIT_NR_FILTERS 5
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#define AUDIT_FILTER_PREPEND 0x10 /* Prepend to front of list */
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/* Rule actions */
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#define AUDIT_NEVER 0 /* Do not build context if rule matches */
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@ -199,6 +205,7 @@ struct audit_sig_info {
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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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#define AUDITSC_INVALID 0
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#define AUDITSC_SUCCESS 1
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@ -215,7 +222,7 @@ extern void audit_syscall_entry(struct task_struct *task, int arch,
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extern void audit_syscall_exit(struct task_struct *task, int failed, long return_code);
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extern void audit_getname(const char *name);
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extern void audit_putname(const char *name);
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extern void audit_inode(const char *name, const struct inode *inode);
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extern void audit_inode(const char *name, const struct inode *inode, unsigned flags);
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/* Private API (for audit.c only) */
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extern int audit_receive_filter(int type, int pid, int uid, int seq,
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@ -230,6 +237,7 @@ 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 int audit_avc_path(struct dentry *dentry, struct vfsmount *mnt);
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extern void audit_signal_info(int sig, struct task_struct *t);
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extern int audit_filter_user(struct netlink_skb_parms *cb, int type);
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#else
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#define audit_alloc(t) ({ 0; })
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#define audit_free(t) do { ; } while (0)
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@ -237,7 +245,7 @@ extern void audit_signal_info(int sig, struct task_struct *t);
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#define audit_syscall_exit(t,f,r) do { ; } while (0)
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#define audit_getname(n) do { ; } while (0)
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#define audit_putname(n) do { ; } while (0)
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#define audit_inode(n,i) do { ; } while (0)
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#define audit_inode(n,i,f) do { ; } while (0)
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#define audit_receive_filter(t,p,u,s,d,l) ({ -EOPNOTSUPP; })
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#define auditsc_get_stamp(c,t,s) do { BUG(); } while (0)
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#define audit_get_loginuid(c) ({ -1; })
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@ -246,16 +254,17 @@ extern void audit_signal_info(int sig, struct task_struct *t);
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#define audit_sockaddr(len, addr) ({ 0; })
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#define audit_avc_path(dentry, mnt) ({ 0; })
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#define audit_signal_info(s,t) do { ; } while (0)
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#define audit_filter_user(cb,t) ({ 1; })
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#endif
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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 void audit_log(struct audit_context *ctx, int type,
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const char *fmt, ...)
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__attribute__((format(printf,3,4)));
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extern void audit_log(struct audit_context *ctx, int gfp_mask,
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int type, const char *fmt, ...)
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__attribute__((format(printf,4,5)));
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extern struct audit_buffer *audit_log_start(struct audit_context *ctx,int type);
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extern struct audit_buffer *audit_log_start(struct audit_context *ctx, int gfp_mask, int type);
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extern void audit_log_format(struct audit_buffer *ab,
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const char *fmt, ...)
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__attribute__((format(printf,2,3)));
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@ -274,9 +283,10 @@ extern void audit_send_reply(int pid, int seq, int type,
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int done, int multi,
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void *payload, int size);
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extern void audit_log_lost(const char *message);
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extern struct semaphore audit_netlink_sem;
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#else
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#define audit_log(c,t,f,...) do { ; } while (0)
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#define audit_log_start(c,t) ({ NULL; })
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#define audit_log(c,g,t,f,...) do { ; } while (0)
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#define audit_log_start(c,g,t) ({ NULL; })
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#define audit_log_vformat(b,f,a) do { ; } while (0)
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#define audit_log_format(b,f,...) do { ; } while (0)
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#define audit_log_end(b) do { ; } while (0)
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128
kernel/audit.c
128
kernel/audit.c
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@ -79,6 +79,8 @@ static int audit_rate_limit;
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/* Number of outstanding audit_buffers allowed. */
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static int audit_backlog_limit = 64;
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static int audit_backlog_wait_time = 60 * HZ;
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static int audit_backlog_wait_overflow = 0;
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/* The identity of the user shutting down the audit system. */
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uid_t audit_sig_uid = -1;
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@ -106,18 +108,12 @@ static LIST_HEAD(audit_freelist);
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static struct sk_buff_head audit_skb_queue;
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static struct task_struct *kauditd_task;
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static DECLARE_WAIT_QUEUE_HEAD(kauditd_wait);
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/* There are three lists of rules -- one to search at task creation
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* time, one to search at syscall entry time, and another to search at
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* syscall exit time. */
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static LIST_HEAD(audit_tsklist);
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static LIST_HEAD(audit_entlist);
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static LIST_HEAD(audit_extlist);
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static DECLARE_WAIT_QUEUE_HEAD(audit_backlog_wait);
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/* The netlink socket is only to be read by 1 CPU, which lets us assume
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* that list additions and deletions never happen simultaneously in
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* auditsc.c */
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static DECLARE_MUTEX(audit_netlink_sem);
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DECLARE_MUTEX(audit_netlink_sem);
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/* AUDIT_BUFSIZ is the size of the temporary buffer used for formatting
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* audit records. Since printk uses a 1024 byte buffer, this buffer
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@ -137,6 +133,7 @@ struct audit_buffer {
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struct list_head list;
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struct sk_buff *skb; /* formatted skb ready to send */
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struct audit_context *ctx; /* NULL or associated context */
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int gfp_mask;
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};
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static void audit_set_pid(struct audit_buffer *ab, pid_t pid)
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@ -145,11 +142,6 @@ static void audit_set_pid(struct audit_buffer *ab, pid_t pid)
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nlh->nlmsg_pid = pid;
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}
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struct audit_entry {
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struct list_head list;
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struct audit_rule rule;
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};
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static void audit_panic(const char *message)
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{
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switch (audit_failure)
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@ -233,7 +225,7 @@ static int audit_set_rate_limit(int limit, uid_t loginuid)
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{
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int old = audit_rate_limit;
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audit_rate_limit = limit;
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audit_log(NULL, AUDIT_CONFIG_CHANGE,
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audit_log(NULL, GFP_KERNEL, AUDIT_CONFIG_CHANGE,
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"audit_rate_limit=%d old=%d by auid=%u",
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audit_rate_limit, old, loginuid);
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return old;
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@ -243,7 +235,7 @@ static int audit_set_backlog_limit(int limit, uid_t loginuid)
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{
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int old = audit_backlog_limit;
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audit_backlog_limit = limit;
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audit_log(NULL, AUDIT_CONFIG_CHANGE,
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audit_log(NULL, GFP_KERNEL, AUDIT_CONFIG_CHANGE,
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"audit_backlog_limit=%d old=%d by auid=%u",
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audit_backlog_limit, old, loginuid);
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return old;
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@ -255,7 +247,7 @@ static int audit_set_enabled(int state, uid_t loginuid)
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if (state != 0 && state != 1)
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return -EINVAL;
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audit_enabled = state;
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audit_log(NULL, AUDIT_CONFIG_CHANGE,
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audit_log(NULL, GFP_KERNEL, AUDIT_CONFIG_CHANGE,
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"audit_enabled=%d old=%d by auid=%u",
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audit_enabled, old, loginuid);
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return old;
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@ -269,7 +261,7 @@ static int audit_set_failure(int state, uid_t loginuid)
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&& state != AUDIT_FAIL_PANIC)
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return -EINVAL;
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audit_failure = state;
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audit_log(NULL, AUDIT_CONFIG_CHANGE,
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audit_log(NULL, GFP_KERNEL, AUDIT_CONFIG_CHANGE,
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"audit_failure=%d old=%d by auid=%u",
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audit_failure, old, loginuid);
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return old;
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@ -281,6 +273,7 @@ int kauditd_thread(void *dummy)
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while (1) {
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skb = skb_dequeue(&audit_skb_queue);
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wake_up(&audit_backlog_wait);
|
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if (skb) {
|
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if (audit_pid) {
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int err = netlink_unicast(audit_sock, skb, audit_pid, 0);
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@ -290,7 +283,7 @@ int kauditd_thread(void *dummy)
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audit_pid = 0;
|
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}
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} else {
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printk(KERN_ERR "%s\n", skb->data + NLMSG_SPACE(0));
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printk(KERN_NOTICE "%s\n", skb->data + NLMSG_SPACE(0));
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kfree_skb(skb);
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}
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} else {
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@ -423,7 +416,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
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if (status_get->mask & AUDIT_STATUS_PID) {
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int old = audit_pid;
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audit_pid = status_get->pid;
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audit_log(NULL, AUDIT_CONFIG_CHANGE,
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audit_log(NULL, GFP_KERNEL, AUDIT_CONFIG_CHANGE,
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"audit_pid=%d old=%d by auid=%u",
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audit_pid, old, loginuid);
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}
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@ -435,15 +428,21 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
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break;
|
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case AUDIT_USER:
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case AUDIT_FIRST_USER_MSG...AUDIT_LAST_USER_MSG:
|
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ab = audit_log_start(NULL, msg_type);
|
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if (!ab)
|
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break; /* audit_panic has been called */
|
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audit_log_format(ab,
|
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"user pid=%d uid=%u auid=%u"
|
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" msg='%.1024s'",
|
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pid, uid, loginuid, (char *)data);
|
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audit_set_pid(ab, pid);
|
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audit_log_end(ab);
|
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if (!audit_enabled && msg_type != AUDIT_USER_AVC)
|
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return 0;
|
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|
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err = audit_filter_user(&NETLINK_CB(skb), msg_type);
|
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if (err == 1) {
|
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err = 0;
|
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ab = audit_log_start(NULL, GFP_KERNEL, msg_type);
|
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if (ab) {
|
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audit_log_format(ab,
|
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"user pid=%d uid=%u auid=%u msg='%.1024s'",
|
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pid, uid, loginuid, (char *)data);
|
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audit_set_pid(ab, pid);
|
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audit_log_end(ab);
|
||||
}
|
||||
}
|
||||
break;
|
||||
case AUDIT_ADD:
|
||||
case AUDIT_DEL:
|
||||
|
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@ -523,7 +522,7 @@ static int __init audit_init(void)
|
|||
skb_queue_head_init(&audit_skb_queue);
|
||||
audit_initialized = 1;
|
||||
audit_enabled = audit_default;
|
||||
audit_log(NULL, AUDIT_KERNEL, "initialized");
|
||||
audit_log(NULL, GFP_KERNEL, AUDIT_KERNEL, "initialized");
|
||||
return 0;
|
||||
}
|
||||
__initcall(audit_init);
|
||||
|
|
@ -561,7 +560,7 @@ static void audit_buffer_free(struct audit_buffer *ab)
|
|||
}
|
||||
|
||||
static struct audit_buffer * audit_buffer_alloc(struct audit_context *ctx,
|
||||
int gfp_mask, int type)
|
||||
unsigned int __nocast gfp_mask, int type)
|
||||
{
|
||||
unsigned long flags;
|
||||
struct audit_buffer *ab = NULL;
|
||||
|
|
@ -587,6 +586,7 @@ static struct audit_buffer * audit_buffer_alloc(struct audit_context *ctx,
|
|||
goto err;
|
||||
|
||||
ab->ctx = ctx;
|
||||
ab->gfp_mask = gfp_mask;
|
||||
nlh = (struct nlmsghdr *)skb_put(ab->skb, NLMSG_SPACE(0));
|
||||
nlh->nlmsg_type = type;
|
||||
nlh->nlmsg_flags = 0;
|
||||
|
|
@ -606,26 +606,27 @@ err:
|
|||
* (timestamp,serial) tuple is unique for each syscall and is live from
|
||||
* syscall entry to syscall exit.
|
||||
*
|
||||
* Atomic values are only guaranteed to be 24-bit, so we count down.
|
||||
*
|
||||
* NOTE: Another possibility is to store the formatted records off the
|
||||
* audit context (for those records that have a context), and emit them
|
||||
* all at syscall exit. However, this could delay the reporting of
|
||||
* significant errors until syscall exit (or never, if the system
|
||||
* halts). */
|
||||
|
||||
unsigned int audit_serial(void)
|
||||
{
|
||||
static atomic_t serial = ATOMIC_INIT(0xffffff);
|
||||
unsigned int a, b;
|
||||
static spinlock_t serial_lock = SPIN_LOCK_UNLOCKED;
|
||||
static unsigned int serial = 0;
|
||||
|
||||
unsigned long flags;
|
||||
unsigned int ret;
|
||||
|
||||
spin_lock_irqsave(&serial_lock, flags);
|
||||
do {
|
||||
a = atomic_read(&serial);
|
||||
if (atomic_dec_and_test(&serial))
|
||||
atomic_set(&serial, 0xffffff);
|
||||
b = atomic_read(&serial);
|
||||
} while (b != a - 1);
|
||||
ret = ++serial;
|
||||
} while (unlikely(!ret));
|
||||
spin_unlock_irqrestore(&serial_lock, flags);
|
||||
|
||||
return 0xffffff - b;
|
||||
return ret;
|
||||
}
|
||||
|
||||
static inline void audit_get_stamp(struct audit_context *ctx,
|
||||
|
|
@ -645,17 +646,43 @@ static inline void audit_get_stamp(struct audit_context *ctx,
|
|||
* syscall, then the syscall is marked as auditable and an audit record
|
||||
* will be written at syscall exit. If there is no associated task, tsk
|
||||
* should be NULL. */
|
||||
struct audit_buffer *audit_log_start(struct audit_context *ctx, int type)
|
||||
|
||||
struct audit_buffer *audit_log_start(struct audit_context *ctx, int gfp_mask,
|
||||
int type)
|
||||
{
|
||||
struct audit_buffer *ab = NULL;
|
||||
struct timespec t;
|
||||
unsigned int serial;
|
||||
int reserve;
|
||||
unsigned long timeout_start = jiffies;
|
||||
|
||||
if (!audit_initialized)
|
||||
return NULL;
|
||||
|
||||
if (audit_backlog_limit
|
||||
&& skb_queue_len(&audit_skb_queue) > audit_backlog_limit) {
|
||||
if (gfp_mask & __GFP_WAIT)
|
||||
reserve = 0;
|
||||
else
|
||||
reserve = 5; /* Allow atomic callers to go up to five
|
||||
entries over the normal backlog limit */
|
||||
|
||||
while (audit_backlog_limit
|
||||
&& skb_queue_len(&audit_skb_queue) > audit_backlog_limit + reserve) {
|
||||
if (gfp_mask & __GFP_WAIT && audit_backlog_wait_time
|
||||
&& time_before(jiffies, timeout_start + audit_backlog_wait_time)) {
|
||||
|
||||
/* Wait for auditd to drain the queue a little */
|
||||
DECLARE_WAITQUEUE(wait, current);
|
||||
set_current_state(TASK_INTERRUPTIBLE);
|
||||
add_wait_queue(&audit_backlog_wait, &wait);
|
||||
|
||||
if (audit_backlog_limit &&
|
||||
skb_queue_len(&audit_skb_queue) > audit_backlog_limit)
|
||||
schedule_timeout(timeout_start + audit_backlog_wait_time - jiffies);
|
||||
|
||||
__set_current_state(TASK_RUNNING);
|
||||
remove_wait_queue(&audit_backlog_wait, &wait);
|
||||
continue;
|
||||
}
|
||||
if (audit_rate_check())
|
||||
printk(KERN_WARNING
|
||||
"audit: audit_backlog=%d > "
|
||||
|
|
@ -663,10 +690,12 @@ struct audit_buffer *audit_log_start(struct audit_context *ctx, int type)
|
|||
skb_queue_len(&audit_skb_queue),
|
||||
audit_backlog_limit);
|
||||
audit_log_lost("backlog limit exceeded");
|
||||
audit_backlog_wait_time = audit_backlog_wait_overflow;
|
||||
wake_up(&audit_backlog_wait);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
ab = audit_buffer_alloc(ctx, GFP_ATOMIC, type);
|
||||
ab = audit_buffer_alloc(ctx, gfp_mask, type);
|
||||
if (!ab) {
|
||||
audit_log_lost("out of memory in audit_log_start");
|
||||
return NULL;
|
||||
|
|
@ -690,7 +719,7 @@ static inline int audit_expand(struct audit_buffer *ab, int extra)
|
|||
{
|
||||
struct sk_buff *skb = ab->skb;
|
||||
int ret = pskb_expand_head(skb, skb_headroom(skb), extra,
|
||||
GFP_ATOMIC);
|
||||
ab->gfp_mask);
|
||||
if (ret < 0) {
|
||||
audit_log_lost("out of memory in audit_expand");
|
||||
return 0;
|
||||
|
|
@ -809,7 +838,7 @@ void audit_log_d_path(struct audit_buffer *ab, const char *prefix,
|
|||
audit_log_format(ab, " %s", prefix);
|
||||
|
||||
/* We will allow 11 spaces for ' (deleted)' to be appended */
|
||||
path = kmalloc(PATH_MAX+11, GFP_KERNEL);
|
||||
path = kmalloc(PATH_MAX+11, ab->gfp_mask);
|
||||
if (!path) {
|
||||
audit_log_format(ab, "<no memory>");
|
||||
return;
|
||||
|
|
@ -841,7 +870,7 @@ void audit_log_end(struct audit_buffer *ab)
|
|||
ab->skb = NULL;
|
||||
wake_up_interruptible(&kauditd_wait);
|
||||
} else {
|
||||
printk("%s\n", ab->skb->data + NLMSG_SPACE(0));
|
||||
printk(KERN_NOTICE "%s\n", ab->skb->data + NLMSG_SPACE(0));
|
||||
}
|
||||
}
|
||||
audit_buffer_free(ab);
|
||||
|
|
@ -850,12 +879,13 @@ void audit_log_end(struct audit_buffer *ab)
|
|||
/* Log an audit record. This is a convenience function that calls
|
||||
* audit_log_start, audit_log_vformat, and audit_log_end. It may be
|
||||
* called in any context. */
|
||||
void audit_log(struct audit_context *ctx, int type, const char *fmt, ...)
|
||||
void audit_log(struct audit_context *ctx, int gfp_mask, int type,
|
||||
const char *fmt, ...)
|
||||
{
|
||||
struct audit_buffer *ab;
|
||||
va_list args;
|
||||
|
||||
ab = audit_log_start(ctx, type);
|
||||
ab = audit_log_start(ctx, gfp_mask, type);
|
||||
if (ab) {
|
||||
va_start(args, fmt);
|
||||
audit_log_vformat(ab, fmt, args);
|
||||
|
|
|
|||
329
kernel/auditsc.c
329
kernel/auditsc.c
|
|
@ -39,6 +39,9 @@
|
|||
#include <linux/audit.h>
|
||||
#include <linux/personality.h>
|
||||
#include <linux/time.h>
|
||||
#include <linux/kthread.h>
|
||||
#include <linux/netlink.h>
|
||||
#include <linux/compiler.h>
|
||||
#include <asm/unistd.h>
|
||||
|
||||
/* 0 = no checking
|
||||
|
|
@ -95,6 +98,7 @@ struct audit_names {
|
|||
uid_t uid;
|
||||
gid_t gid;
|
||||
dev_t rdev;
|
||||
unsigned flags;
|
||||
};
|
||||
|
||||
struct audit_aux_data {
|
||||
|
|
@ -167,9 +171,16 @@ struct audit_context {
|
|||
/* There are three lists of rules -- one to search at task creation
|
||||
* time, one to search at syscall entry time, and another to search at
|
||||
* syscall exit time. */
|
||||
static LIST_HEAD(audit_tsklist);
|
||||
static LIST_HEAD(audit_entlist);
|
||||
static LIST_HEAD(audit_extlist);
|
||||
static struct list_head audit_filter_list[AUDIT_NR_FILTERS] = {
|
||||
LIST_HEAD_INIT(audit_filter_list[0]),
|
||||
LIST_HEAD_INIT(audit_filter_list[1]),
|
||||
LIST_HEAD_INIT(audit_filter_list[2]),
|
||||
LIST_HEAD_INIT(audit_filter_list[3]),
|
||||
LIST_HEAD_INIT(audit_filter_list[4]),
|
||||
#if AUDIT_NR_FILTERS != 5
|
||||
#error Fix audit_filter_list initialiser
|
||||
#endif
|
||||
};
|
||||
|
||||
struct audit_entry {
|
||||
struct list_head list;
|
||||
|
|
@ -179,9 +190,36 @@ struct audit_entry {
|
|||
|
||||
extern int audit_pid;
|
||||
|
||||
/* Copy rule from user-space to kernel-space. Called from
|
||||
* audit_add_rule during AUDIT_ADD. */
|
||||
static inline int audit_copy_rule(struct audit_rule *d, struct audit_rule *s)
|
||||
{
|
||||
int i;
|
||||
|
||||
if (s->action != AUDIT_NEVER
|
||||
&& s->action != AUDIT_POSSIBLE
|
||||
&& s->action != AUDIT_ALWAYS)
|
||||
return -1;
|
||||
if (s->field_count < 0 || s->field_count > AUDIT_MAX_FIELDS)
|
||||
return -1;
|
||||
if ((s->flags & ~AUDIT_FILTER_PREPEND) >= AUDIT_NR_FILTERS)
|
||||
return -1;
|
||||
|
||||
d->flags = s->flags;
|
||||
d->action = s->action;
|
||||
d->field_count = s->field_count;
|
||||
for (i = 0; i < d->field_count; i++) {
|
||||
d->fields[i] = s->fields[i];
|
||||
d->values[i] = s->values[i];
|
||||
}
|
||||
for (i = 0; i < AUDIT_BITMASK_SIZE; i++) d->mask[i] = s->mask[i];
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Check to see if two rules are identical. It is called from
|
||||
* audit_add_rule during AUDIT_ADD and
|
||||
* audit_del_rule during AUDIT_DEL. */
|
||||
static int audit_compare_rule(struct audit_rule *a, struct audit_rule *b)
|
||||
static inline int audit_compare_rule(struct audit_rule *a, struct audit_rule *b)
|
||||
{
|
||||
int i;
|
||||
|
||||
|
|
@ -210,19 +248,37 @@ static int audit_compare_rule(struct audit_rule *a, struct audit_rule *b)
|
|||
/* Note that audit_add_rule and audit_del_rule are called via
|
||||
* audit_receive() in audit.c, and are protected by
|
||||
* audit_netlink_sem. */
|
||||
static inline int audit_add_rule(struct audit_entry *entry,
|
||||
struct list_head *list)
|
||||
static inline int audit_add_rule(struct audit_rule *rule,
|
||||
struct list_head *list)
|
||||
{
|
||||
if (entry->rule.flags & AUDIT_PREPEND) {
|
||||
entry->rule.flags &= ~AUDIT_PREPEND;
|
||||
struct audit_entry *entry;
|
||||
|
||||
/* Do not use the _rcu iterator here, since this is the only
|
||||
* addition routine. */
|
||||
list_for_each_entry(entry, list, list) {
|
||||
if (!audit_compare_rule(rule, &entry->rule)) {
|
||||
return -EEXIST;
|
||||
}
|
||||
}
|
||||
|
||||
if (!(entry = kmalloc(sizeof(*entry), GFP_KERNEL)))
|
||||
return -ENOMEM;
|
||||
if (audit_copy_rule(&entry->rule, rule)) {
|
||||
kfree(entry);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
if (entry->rule.flags & AUDIT_FILTER_PREPEND) {
|
||||
entry->rule.flags &= ~AUDIT_FILTER_PREPEND;
|
||||
list_add_rcu(&entry->list, list);
|
||||
} else {
|
||||
list_add_tail_rcu(&entry->list, list);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void audit_free_rule(struct rcu_head *head)
|
||||
static inline void audit_free_rule(struct rcu_head *head)
|
||||
{
|
||||
struct audit_entry *e = container_of(head, struct audit_entry, rcu);
|
||||
kfree(e);
|
||||
|
|
@ -245,82 +301,82 @@ static inline int audit_del_rule(struct audit_rule *rule,
|
|||
return 0;
|
||||
}
|
||||
}
|
||||
return -EFAULT; /* No matching rule */
|
||||
return -ENOENT; /* No matching rule */
|
||||
}
|
||||
|
||||
/* Copy rule from user-space to kernel-space. Called during
|
||||
* AUDIT_ADD. */
|
||||
static int audit_copy_rule(struct audit_rule *d, struct audit_rule *s)
|
||||
static int audit_list_rules(void *_dest)
|
||||
{
|
||||
int pid, seq;
|
||||
int *dest = _dest;
|
||||
struct audit_entry *entry;
|
||||
int i;
|
||||
|
||||
if (s->action != AUDIT_NEVER
|
||||
&& s->action != AUDIT_POSSIBLE
|
||||
&& s->action != AUDIT_ALWAYS)
|
||||
return -1;
|
||||
if (s->field_count < 0 || s->field_count > AUDIT_MAX_FIELDS)
|
||||
return -1;
|
||||
pid = dest[0];
|
||||
seq = dest[1];
|
||||
kfree(dest);
|
||||
|
||||
d->flags = s->flags;
|
||||
d->action = s->action;
|
||||
d->field_count = s->field_count;
|
||||
for (i = 0; i < d->field_count; i++) {
|
||||
d->fields[i] = s->fields[i];
|
||||
d->values[i] = s->values[i];
|
||||
down(&audit_netlink_sem);
|
||||
|
||||
/* The *_rcu iterators not needed here because we are
|
||||
always called with audit_netlink_sem held. */
|
||||
for (i=0; i<AUDIT_NR_FILTERS; i++) {
|
||||
list_for_each_entry(entry, &audit_filter_list[i], list)
|
||||
audit_send_reply(pid, seq, AUDIT_LIST, 0, 1,
|
||||
&entry->rule, sizeof(entry->rule));
|
||||
}
|
||||
for (i = 0; i < AUDIT_BITMASK_SIZE; i++) d->mask[i] = s->mask[i];
|
||||
audit_send_reply(pid, seq, AUDIT_LIST, 1, 1, NULL, 0);
|
||||
|
||||
up(&audit_netlink_sem);
|
||||
return 0;
|
||||
}
|
||||
|
||||
int audit_receive_filter(int type, int pid, int uid, int seq, void *data,
|
||||
uid_t loginuid)
|
||||
{
|
||||
u32 flags;
|
||||
struct audit_entry *entry;
|
||||
struct task_struct *tsk;
|
||||
int *dest;
|
||||
int err = 0;
|
||||
unsigned listnr;
|
||||
|
||||
switch (type) {
|
||||
case AUDIT_LIST:
|
||||
/* The *_rcu iterators not needed here because we are
|
||||
always called with audit_netlink_sem held. */
|
||||
list_for_each_entry(entry, &audit_tsklist, list)
|
||||
audit_send_reply(pid, seq, AUDIT_LIST, 0, 1,
|
||||
&entry->rule, sizeof(entry->rule));
|
||||
list_for_each_entry(entry, &audit_entlist, list)
|
||||
audit_send_reply(pid, seq, AUDIT_LIST, 0, 1,
|
||||
&entry->rule, sizeof(entry->rule));
|
||||
list_for_each_entry(entry, &audit_extlist, list)
|
||||
audit_send_reply(pid, seq, AUDIT_LIST, 0, 1,
|
||||
&entry->rule, sizeof(entry->rule));
|
||||
audit_send_reply(pid, seq, AUDIT_LIST, 1, 1, NULL, 0);
|
||||
/* We can't just spew out the rules here because we might fill
|
||||
* the available socket buffer space and deadlock waiting for
|
||||
* auditctl to read from it... which isn't ever going to
|
||||
* happen if we're actually running in the context of auditctl
|
||||
* trying to _send_ the stuff */
|
||||
|
||||
dest = kmalloc(2 * sizeof(int), GFP_KERNEL);
|
||||
if (!dest)
|
||||
return -ENOMEM;
|
||||
dest[0] = pid;
|
||||
dest[1] = seq;
|
||||
|
||||
tsk = kthread_run(audit_list_rules, dest, "audit_list_rules");
|
||||
if (IS_ERR(tsk)) {
|
||||
kfree(dest);
|
||||
err = PTR_ERR(tsk);
|
||||
}
|
||||
break;
|
||||
case AUDIT_ADD:
|
||||
if (!(entry = kmalloc(sizeof(*entry), GFP_KERNEL)))
|
||||
return -ENOMEM;
|
||||
if (audit_copy_rule(&entry->rule, data)) {
|
||||
kfree(entry);
|
||||
listnr =((struct audit_rule *)data)->flags & ~AUDIT_FILTER_PREPEND;
|
||||
if (listnr >= AUDIT_NR_FILTERS)
|
||||
return -EINVAL;
|
||||
}
|
||||
flags = entry->rule.flags;
|
||||
if (!err && (flags & AUDIT_PER_TASK))
|
||||
err = audit_add_rule(entry, &audit_tsklist);
|
||||
if (!err && (flags & AUDIT_AT_ENTRY))
|
||||
err = audit_add_rule(entry, &audit_entlist);
|
||||
if (!err && (flags & AUDIT_AT_EXIT))
|
||||
err = audit_add_rule(entry, &audit_extlist);
|
||||
audit_log(NULL, AUDIT_CONFIG_CHANGE,
|
||||
"auid=%u added an audit rule\n", loginuid);
|
||||
|
||||
err = audit_add_rule(data, &audit_filter_list[listnr]);
|
||||
if (!err)
|
||||
audit_log(NULL, GFP_KERNEL, AUDIT_CONFIG_CHANGE,
|
||||
"auid=%u added an audit rule\n", loginuid);
|
||||
break;
|
||||
case AUDIT_DEL:
|
||||
flags =((struct audit_rule *)data)->flags;
|
||||
if (!err && (flags & AUDIT_PER_TASK))
|
||||
err = audit_del_rule(data, &audit_tsklist);
|
||||
if (!err && (flags & AUDIT_AT_ENTRY))
|
||||
err = audit_del_rule(data, &audit_entlist);
|
||||
if (!err && (flags & AUDIT_AT_EXIT))
|
||||
err = audit_del_rule(data, &audit_extlist);
|
||||
audit_log(NULL, AUDIT_CONFIG_CHANGE,
|
||||
"auid=%u removed an audit rule\n", loginuid);
|
||||
listnr =((struct audit_rule *)data)->flags & ~AUDIT_FILTER_PREPEND;
|
||||
if (listnr >= AUDIT_NR_FILTERS)
|
||||
return -EINVAL;
|
||||
|
||||
err = audit_del_rule(data, &audit_filter_list[listnr]);
|
||||
if (!err)
|
||||
audit_log(NULL, GFP_KERNEL, AUDIT_CONFIG_CHANGE,
|
||||
"auid=%u removed an audit rule\n", loginuid);
|
||||
break;
|
||||
default:
|
||||
return -EINVAL;
|
||||
|
|
@ -384,8 +440,12 @@ static int audit_filter_rules(struct task_struct *tsk,
|
|||
result = (ctx->return_code == value);
|
||||
break;
|
||||
case AUDIT_SUCCESS:
|
||||
if (ctx && ctx->return_valid)
|
||||
result = (ctx->return_valid == AUDITSC_SUCCESS);
|
||||
if (ctx && ctx->return_valid) {
|
||||
if (value)
|
||||
result = (ctx->return_valid == AUDITSC_SUCCESS);
|
||||
else
|
||||
result = (ctx->return_valid == AUDITSC_FAILURE);
|
||||
}
|
||||
break;
|
||||
case AUDIT_DEVMAJOR:
|
||||
if (ctx) {
|
||||
|
|
@ -454,7 +514,7 @@ static enum audit_state audit_filter_task(struct task_struct *tsk)
|
|||
enum audit_state state;
|
||||
|
||||
rcu_read_lock();
|
||||
list_for_each_entry_rcu(e, &audit_tsklist, list) {
|
||||
list_for_each_entry_rcu(e, &audit_filter_list[AUDIT_FILTER_TASK], list) {
|
||||
if (audit_filter_rules(tsk, &e->rule, NULL, &state)) {
|
||||
rcu_read_unlock();
|
||||
return state;
|
||||
|
|
@ -474,22 +534,86 @@ static enum audit_state audit_filter_syscall(struct task_struct *tsk,
|
|||
struct list_head *list)
|
||||
{
|
||||
struct audit_entry *e;
|
||||
enum audit_state state;
|
||||
int word = AUDIT_WORD(ctx->major);
|
||||
int bit = AUDIT_BIT(ctx->major);
|
||||
enum audit_state state;
|
||||
|
||||
if (audit_pid && tsk->tgid == audit_pid)
|
||||
return AUDIT_DISABLED;
|
||||
|
||||
rcu_read_lock();
|
||||
list_for_each_entry_rcu(e, list, list) {
|
||||
if ((e->rule.mask[word] & bit) == bit
|
||||
&& audit_filter_rules(tsk, &e->rule, ctx, &state)) {
|
||||
rcu_read_unlock();
|
||||
return state;
|
||||
}
|
||||
if (!list_empty(list)) {
|
||||
int word = AUDIT_WORD(ctx->major);
|
||||
int bit = AUDIT_BIT(ctx->major);
|
||||
|
||||
list_for_each_entry_rcu(e, list, list) {
|
||||
if ((e->rule.mask[word] & bit) == bit
|
||||
&& audit_filter_rules(tsk, &e->rule, ctx, &state)) {
|
||||
rcu_read_unlock();
|
||||
return state;
|
||||
}
|
||||
}
|
||||
}
|
||||
rcu_read_unlock();
|
||||
return AUDIT_BUILD_CONTEXT;
|
||||
}
|
||||
|
||||
static int audit_filter_user_rules(struct netlink_skb_parms *cb,
|
||||
struct audit_rule *rule,
|
||||
enum audit_state *state)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; i < rule->field_count; i++) {
|
||||
u32 field = rule->fields[i] & ~AUDIT_NEGATE;
|
||||
u32 value = rule->values[i];
|
||||
int result = 0;
|
||||
|
||||
switch (field) {
|
||||
case AUDIT_PID:
|
||||
result = (cb->creds.pid == value);
|
||||
break;
|
||||
case AUDIT_UID:
|
||||
result = (cb->creds.uid == value);
|
||||
break;
|
||||
case AUDIT_GID:
|
||||
result = (cb->creds.gid == value);
|
||||
break;
|
||||
case AUDIT_LOGINUID:
|
||||
result = (cb->loginuid == value);
|
||||
break;
|
||||
}
|
||||
|
||||
if (rule->fields[i] & AUDIT_NEGATE)
|
||||
result = !result;
|
||||
if (!result)
|
||||
return 0;
|
||||
}
|
||||
switch (rule->action) {
|
||||
case AUDIT_NEVER: *state = AUDIT_DISABLED; break;
|
||||
case AUDIT_POSSIBLE: *state = AUDIT_BUILD_CONTEXT; break;
|
||||
case AUDIT_ALWAYS: *state = AUDIT_RECORD_CONTEXT; break;
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
|
||||
int audit_filter_user(struct netlink_skb_parms *cb, int type)
|
||||
{
|
||||
struct audit_entry *e;
|
||||
enum audit_state state;
|
||||
int ret = 1;
|
||||
|
||||
rcu_read_lock();
|
||||
list_for_each_entry_rcu(e, &audit_filter_list[AUDIT_FILTER_USER], list) {
|
||||
if (audit_filter_user_rules(cb, &e->rule, &state)) {
|
||||
if (state == AUDIT_DISABLED)
|
||||
ret = 0;
|
||||
break;
|
||||
}
|
||||
}
|
||||
rcu_read_unlock();
|
||||
|
||||
return ret; /* Audit by default */
|
||||
}
|
||||
|
||||
/* This should be called with task_lock() held. */
|
||||
static inline struct audit_context *audit_get_context(struct task_struct *tsk,
|
||||
int return_valid,
|
||||
|
|
@ -504,7 +628,7 @@ static inline struct audit_context *audit_get_context(struct task_struct *tsk,
|
|||
|
||||
if (context->in_syscall && !context->auditable) {
|
||||
enum audit_state state;
|
||||
state = audit_filter_syscall(tsk, context, &audit_extlist);
|
||||
state = audit_filter_syscall(tsk, context, &audit_filter_list[AUDIT_FILTER_EXIT]);
|
||||
if (state == AUDIT_RECORD_CONTEXT)
|
||||
context->auditable = 1;
|
||||
}
|
||||
|
|
@ -679,13 +803,13 @@ static void audit_log_task_info(struct audit_buffer *ab)
|
|||
up_read(&mm->mmap_sem);
|
||||
}
|
||||
|
||||
static void audit_log_exit(struct audit_context *context)
|
||||
static void audit_log_exit(struct audit_context *context, unsigned int gfp_mask)
|
||||
{
|
||||
int i;
|
||||
struct audit_buffer *ab;
|
||||
struct audit_aux_data *aux;
|
||||
|
||||
ab = audit_log_start(context, AUDIT_SYSCALL);
|
||||
ab = audit_log_start(context, gfp_mask, AUDIT_SYSCALL);
|
||||
if (!ab)
|
||||
return; /* audit_panic has been called */
|
||||
audit_log_format(ab, "arch=%x syscall=%d",
|
||||
|
|
@ -717,7 +841,7 @@ static void audit_log_exit(struct audit_context *context)
|
|||
|
||||
for (aux = context->aux; aux; aux = aux->next) {
|
||||
|
||||
ab = audit_log_start(context, aux->type);
|
||||
ab = audit_log_start(context, GFP_KERNEL, aux->type);
|
||||
if (!ab)
|
||||
continue; /* audit_panic has been called */
|
||||
|
||||
|
|
@ -754,14 +878,14 @@ static void audit_log_exit(struct audit_context *context)
|
|||
}
|
||||
|
||||
if (context->pwd && context->pwdmnt) {
|
||||
ab = audit_log_start(context, AUDIT_CWD);
|
||||
ab = audit_log_start(context, GFP_KERNEL, AUDIT_CWD);
|
||||
if (ab) {
|
||||
audit_log_d_path(ab, "cwd=", context->pwd, context->pwdmnt);
|
||||
audit_log_end(ab);
|
||||
}
|
||||
}
|
||||
for (i = 0; i < context->name_count; i++) {
|
||||
ab = audit_log_start(context, AUDIT_PATH);
|
||||
ab = audit_log_start(context, GFP_KERNEL, AUDIT_PATH);
|
||||
if (!ab)
|
||||
continue; /* audit_panic has been called */
|
||||
|
||||
|
|
@ -770,6 +894,8 @@ static void audit_log_exit(struct audit_context *context)
|
|||
audit_log_format(ab, " name=");
|
||||
audit_log_untrustedstring(ab, context->names[i].name);
|
||||
}
|
||||
audit_log_format(ab, " flags=%x\n", context->names[i].flags);
|
||||
|
||||
if (context->names[i].ino != (unsigned long)-1)
|
||||
audit_log_format(ab, " inode=%lu dev=%02x:%02x mode=%#o"
|
||||
" ouid=%u ogid=%u rdev=%02x:%02x",
|
||||
|
|
@ -799,9 +925,11 @@ void audit_free(struct task_struct *tsk)
|
|||
return;
|
||||
|
||||
/* Check for system calls that do not go through the exit
|
||||
* function (e.g., exit_group), then free context block. */
|
||||
if (context->in_syscall && context->auditable && context->pid != audit_pid)
|
||||
audit_log_exit(context);
|
||||
* function (e.g., exit_group), then free context block.
|
||||
* We use GFP_ATOMIC here because we might be doing this
|
||||
* in the context of the idle thread */
|
||||
if (context->in_syscall && context->auditable)
|
||||
audit_log_exit(context, GFP_ATOMIC);
|
||||
|
||||
audit_free_context(context);
|
||||
}
|
||||
|
|
@ -876,11 +1004,11 @@ void audit_syscall_entry(struct task_struct *tsk, int arch, int major,
|
|||
|
||||
state = context->state;
|
||||
if (state == AUDIT_SETUP_CONTEXT || state == AUDIT_BUILD_CONTEXT)
|
||||
state = audit_filter_syscall(tsk, context, &audit_entlist);
|
||||
state = audit_filter_syscall(tsk, context, &audit_filter_list[AUDIT_FILTER_ENTRY]);
|
||||
if (likely(state == AUDIT_DISABLED))
|
||||
return;
|
||||
|
||||
context->serial = audit_serial();
|
||||
context->serial = 0;
|
||||
context->ctime = CURRENT_TIME;
|
||||
context->in_syscall = 1;
|
||||
context->auditable = !!(state == AUDIT_RECORD_CONTEXT);
|
||||
|
|
@ -903,10 +1031,10 @@ void audit_syscall_exit(struct task_struct *tsk, int valid, long return_code)
|
|||
/* Not having a context here is ok, since the parent may have
|
||||
* called __put_task_struct. */
|
||||
if (likely(!context))
|
||||
return;
|
||||
goto out;
|
||||
|
||||
if (context->in_syscall && context->auditable && context->pid != audit_pid)
|
||||
audit_log_exit(context);
|
||||
if (context->in_syscall && context->auditable)
|
||||
audit_log_exit(context, GFP_KERNEL);
|
||||
|
||||
context->in_syscall = 0;
|
||||
context->auditable = 0;
|
||||
|
|
@ -919,9 +1047,9 @@ void audit_syscall_exit(struct task_struct *tsk, int valid, long return_code)
|
|||
} else {
|
||||
audit_free_names(context);
|
||||
audit_free_aux(context);
|
||||
audit_zero_context(context, context->state);
|
||||
tsk->audit_context = context;
|
||||
}
|
||||
out:
|
||||
put_task_struct(tsk);
|
||||
}
|
||||
|
||||
|
|
@ -996,7 +1124,7 @@ void audit_putname(const char *name)
|
|||
|
||||
/* Store the inode and device from a lookup. Called from
|
||||
* fs/namei.c:path_lookup(). */
|
||||
void audit_inode(const char *name, const struct inode *inode)
|
||||
void audit_inode(const char *name, const struct inode *inode, unsigned flags)
|
||||
{
|
||||
int idx;
|
||||
struct audit_context *context = current->audit_context;
|
||||
|
|
@ -1022,17 +1150,20 @@ void audit_inode(const char *name, const struct inode *inode)
|
|||
++context->ino_count;
|
||||
#endif
|
||||
}
|
||||
context->names[idx].ino = inode->i_ino;
|
||||
context->names[idx].dev = inode->i_sb->s_dev;
|
||||
context->names[idx].mode = inode->i_mode;
|
||||
context->names[idx].uid = inode->i_uid;
|
||||
context->names[idx].gid = inode->i_gid;
|
||||
context->names[idx].rdev = inode->i_rdev;
|
||||
context->names[idx].flags = flags;
|
||||
context->names[idx].ino = inode->i_ino;
|
||||
context->names[idx].dev = inode->i_sb->s_dev;
|
||||
context->names[idx].mode = inode->i_mode;
|
||||
context->names[idx].uid = inode->i_uid;
|
||||
context->names[idx].gid = inode->i_gid;
|
||||
context->names[idx].rdev = inode->i_rdev;
|
||||
}
|
||||
|
||||
void auditsc_get_stamp(struct audit_context *ctx,
|
||||
struct timespec *t, unsigned int *serial)
|
||||
{
|
||||
if (!ctx->serial)
|
||||
ctx->serial = audit_serial();
|
||||
t->tv_sec = ctx->ctime.tv_sec;
|
||||
t->tv_nsec = ctx->ctime.tv_nsec;
|
||||
*serial = ctx->serial;
|
||||
|
|
@ -1044,7 +1175,7 @@ int audit_set_loginuid(struct task_struct *task, uid_t loginuid)
|
|||
if (task->audit_context) {
|
||||
struct audit_buffer *ab;
|
||||
|
||||
ab = audit_log_start(NULL, AUDIT_LOGIN);
|
||||
ab = audit_log_start(NULL, GFP_KERNEL, AUDIT_LOGIN);
|
||||
if (ab) {
|
||||
audit_log_format(ab, "login pid=%d uid=%u "
|
||||
"old auid=%u new auid=%u",
|
||||
|
|
@ -1153,7 +1284,7 @@ void audit_signal_info(int sig, struct task_struct *t)
|
|||
extern pid_t audit_sig_pid;
|
||||
extern uid_t audit_sig_uid;
|
||||
|
||||
if (unlikely(audit_pid && t->pid == audit_pid)) {
|
||||
if (unlikely(audit_pid && t->tgid == audit_pid)) {
|
||||
if (sig == SIGTERM || sig == SIGHUP) {
|
||||
struct audit_context *ctx = current->audit_context;
|
||||
audit_sig_pid = current->pid;
|
||||
|
|
|
|||
|
|
@ -242,7 +242,7 @@ void __init avc_init(void)
|
|||
avc_node_cachep = kmem_cache_create("avc_node", sizeof(struct avc_node),
|
||||
0, SLAB_PANIC, NULL, NULL);
|
||||
|
||||
audit_log(current->audit_context, AUDIT_KERNEL, "AVC INITIALIZED\n");
|
||||
audit_log(current->audit_context, GFP_KERNEL, AUDIT_KERNEL, "AVC INITIALIZED\n");
|
||||
}
|
||||
|
||||
int avc_get_hash_stats(char *page)
|
||||
|
|
@ -550,7 +550,7 @@ void avc_audit(u32 ssid, u32 tsid,
|
|||
return;
|
||||
}
|
||||
|
||||
ab = audit_log_start(current->audit_context, AUDIT_AVC);
|
||||
ab = audit_log_start(current->audit_context, GFP_ATOMIC, AUDIT_AVC);
|
||||
if (!ab)
|
||||
return; /* audit_panic has been called */
|
||||
audit_log_format(ab, "avc: %s ", denied ? "denied" : "granted");
|
||||
|
|
|
|||
|
|
@ -3389,7 +3389,7 @@ static int selinux_nlmsg_perm(struct sock *sk, struct sk_buff *skb)
|
|||
err = selinux_nlmsg_lookup(isec->sclass, nlh->nlmsg_type, &perm);
|
||||
if (err) {
|
||||
if (err == -EINVAL) {
|
||||
audit_log(current->audit_context, AUDIT_SELINUX_ERR,
|
||||
audit_log(current->audit_context, GFP_KERNEL, AUDIT_SELINUX_ERR,
|
||||
"SELinux: unrecognized netlink message"
|
||||
" type=%hu for sclass=%hu\n",
|
||||
nlh->nlmsg_type, isec->sclass);
|
||||
|
|
|
|||
|
|
@ -381,7 +381,7 @@ static int security_validtrans_handle_fail(struct context *ocontext,
|
|||
goto out;
|
||||
if (context_struct_to_string(tcontext, &t, &tlen) < 0)
|
||||
goto out;
|
||||
audit_log(current->audit_context, AUDIT_SELINUX_ERR,
|
||||
audit_log(current->audit_context, GFP_ATOMIC, AUDIT_SELINUX_ERR,
|
||||
"security_validate_transition: denied for"
|
||||
" oldcontext=%s newcontext=%s taskcontext=%s tclass=%s",
|
||||
o, n, t, policydb.p_class_val_to_name[tclass-1]);
|
||||
|
|
@ -787,7 +787,7 @@ static int compute_sid_handle_invalid_context(
|
|||
goto out;
|
||||
if (context_struct_to_string(newcontext, &n, &nlen) < 0)
|
||||
goto out;
|
||||
audit_log(current->audit_context, AUDIT_SELINUX_ERR,
|
||||
audit_log(current->audit_context, GFP_ATOMIC, AUDIT_SELINUX_ERR,
|
||||
"security_compute_sid: invalid context %s"
|
||||
" for scontext=%s"
|
||||
" tcontext=%s"
|
||||
|
|
|
|||
Loading…
Reference in New Issue