From 3e2efce067cec0099f99ae59f28feda99b02b498 Mon Sep 17 00:00:00 2001 From: Amy Griffis Date: Thu, 13 Jul 2006 13:16:02 -0400 Subject: [PATCH] fix faulty inode data collection for open() with O_CREAT When the specified path is an existing file or when it is a symlink, audit collects the wrong inode number, which causes it to miss the open() event. Adding a second hook to the open() path fixes this. Also add audit_copy_inode() to consolidate some code. Signed-off-by: Amy Griffis Signed-off-by: Al Viro --- include/linux/audit.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'include/linux/audit.h') diff --git a/include/linux/audit.h b/include/linux/audit.h index b27d7debc5a..e7e5e534898 100644 --- a/include/linux/audit.h +++ b/include/linux/audit.h @@ -328,6 +328,7 @@ 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, unsigned long pino); +extern void __audit_inode_update(const struct inode *inode); static inline void audit_getname(const char *name) { if (unlikely(current->audit_context)) @@ -343,6 +344,10 @@ static inline void audit_inode_child(const char *dname, if (unlikely(current->audit_context)) __audit_inode_child(dname, inode, pino); } +static inline void audit_inode_update(const struct inode *inode) { + if (unlikely(current->audit_context)) + __audit_inode_update(inode); +} /* Private API (for audit.c only) */ extern unsigned int audit_serial(void); @@ -414,8 +419,10 @@ static inline int audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat) #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 auditsc_get_stamp(c,t,s) do { BUG(); } while (0) #define audit_get_loginuid(c) ({ -1; }) #define audit_ipc_obj(i) ({ 0; }) -- cgit From 73d3ec5abad3f1730ac8530899d2c14d92f3ad63 Mon Sep 17 00:00:00 2001 From: Amy Griffis Date: Thu, 13 Jul 2006 13:16:39 -0400 Subject: [PATCH] fix missed create event for directory audit When an object is created via a symlink into an audited directory, audit misses the event due to not having collected the inode data for the directory. Modify __audit_inode_child() to copy the parent inode data if a parent wasn't found in audit_names[]. Signed-off-by: Amy Griffis Signed-off-by: Al Viro --- include/linux/audit.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'include/linux/audit.h') diff --git a/include/linux/audit.h b/include/linux/audit.h index e7e5e534898..bf196c05826 100644 --- a/include/linux/audit.h +++ b/include/linux/audit.h @@ -327,7 +327,7 @@ 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, - unsigned long pino); + const struct inode *parent); extern void __audit_inode_update(const struct inode *inode); static inline void audit_getname(const char *name) { @@ -339,10 +339,10 @@ static inline void audit_inode(const char *name, const struct inode *inode) { __audit_inode(name, inode); } static inline void audit_inode_child(const char *dname, - const struct inode *inode, - unsigned long pino) { + const struct inode *inode, + const struct inode *parent) { if (unlikely(current->audit_context)) - __audit_inode_child(dname, inode, pino); + __audit_inode_child(dname, inode, parent); } static inline void audit_inode_update(const struct inode *inode) { if (unlikely(current->audit_context)) -- cgit From 471a5c7c839114cc8b55876203aeb2817c33e3c5 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 10 Jul 2006 08:29:24 -0400 Subject: [PATCH] introduce audit rules counter Signed-off-by: Al Viro --- include/linux/audit.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux/audit.h') diff --git a/include/linux/audit.h b/include/linux/audit.h index bf196c05826..f1bfcff497b 100644 --- a/include/linux/audit.h +++ b/include/linux/audit.h @@ -410,6 +410,7 @@ static inline int audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat) return __audit_mq_getsetattr(mqdes, mqstat); return 0; } +extern int audit_n_rules; #else #define audit_alloc(t) ({ 0; }) #define audit_free(t) do { ; } while (0) @@ -437,6 +438,7 @@ static inline int audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat) #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 #endif #ifdef CONFIG_AUDIT -- cgit From d51374adf5f2f88155a072d3d801104e3c0c3d7f Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 3 Aug 2006 10:59:26 -0400 Subject: [PATCH] mark context of syscall entered with no rules as dummy Signed-off-by: Al Viro --- include/linux/audit.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/linux/audit.h') diff --git a/include/linux/audit.h b/include/linux/audit.h index f1bfcff497b..3f736d65821 100644 --- a/include/linux/audit.h +++ b/include/linux/audit.h @@ -329,6 +329,11 @@ 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(current->audit_context)) @@ -416,6 +421,7 @@ extern int audit_n_rules; #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_getname(n) do { ; } while (0) #define audit_putname(n) do { ; } while (0) #define __audit_inode(n,i) do { ; } while (0) -- cgit From 5ac3a9c26c1cc4861d9cdd8b293fecbfcdc81afe Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 16 Jul 2006 06:38:45 -0400 Subject: [PATCH] don't bother with aux entires for dummy context Signed-off-by: Al Viro --- include/linux/audit.h | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) (limited to 'include/linux/audit.h') diff --git a/include/linux/audit.h b/include/linux/audit.h index 3f736d65821..64f9f9e56ac 100644 --- a/include/linux/audit.h +++ b/include/linux/audit.h @@ -336,21 +336,21 @@ static inline int audit_dummy_context(void) } static inline void audit_getname(const char *name) { - if (unlikely(current->audit_context)) + if (unlikely(!audit_dummy_context())) __audit_getname(name); } static inline void audit_inode(const char *name, const struct inode *inode) { - if (unlikely(current->audit_context)) + 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(current->audit_context)) + if (unlikely(!audit_dummy_context())) __audit_inode_child(dname, inode, parent); } static inline void audit_inode_update(const struct inode *inode) { - if (unlikely(current->audit_context)) + if (unlikely(!audit_dummy_context())) __audit_inode_update(inode); } @@ -375,43 +375,43 @@ 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(current->audit_context)) + 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(current->audit_context)) + 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(current->audit_context)) + 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(current->audit_context)) + 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(current->audit_context)) + 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(current->audit_context)) + 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(current->audit_context)) + if (unlikely(!audit_dummy_context())) return __audit_mq_getsetattr(mqdes, mqstat); return 0; } -- cgit