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* seccomp: remove duplicated failure loggingKees Cook2012-04-141-2/+6
| | | | | | | | | | | | | | | This consolidates the seccomp filter error logging path and adds more details to the audit log. Signed-off-by: Will Drewry <wad@chromium.org> Signed-off-by: Kees Cook <keescook@chromium.org> Acked-by: Eric Paris <eparis@redhat.com> v18: make compat= permanent in the record v15: added a return code to the audit_seccomp path by wad@chromium.org (suggested by eparis@redhat.com) v*: original by keescook@chromium.org Signed-off-by: James Morris <james.l.morris@oracle.com>
* kernel-doc: fix new warnings in auditsc.cRandy Dunlap2012-01-231-2/+3
| | | | | | | | | | | | | Fix new kernel-doc warnings in auditsc.c: Warning(kernel/auditsc.c:1875): No description found for parameter 'success' Warning(kernel/auditsc.c:1875): No description found for parameter 'return_code' Warning(kernel/auditsc.c:1875): Excess function parameter 'pt_regs' description in '__audit_syscall_exit' Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Eric Paris <eparis@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* audit: no leading space in audit_log_d_path prefixKees Cook2012-01-171-3/+3
| | | | | | | | | audit_log_d_path() injects an additional space before the prefix, which serves no purpose and doesn't mix well with other audit_log*() functions that do not sneak extra characters into the log. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Eric Paris <eparis@redhat.com>
* audit: fix signedness bug in audit_log_execve_info()Xi Wang2012-01-171-2/+2
| | | | | | | | | | | | | | | | | | | | In the loop, a size_t "len" is used to hold the return value of audit_log_single_execve_arg(), which returns -1 on error. In that case the error handling (len <= 0) will be bypassed since "len" is unsigned, and the loop continues with (p += len) being wrapped. Change the type of "len" to signed int to fix the error handling. size_t len; ... for (...) { len = audit_log_single_execve_arg(...); if (len <= 0) break; p += len; } Signed-off-by: Xi Wang <xi.wang@gmail.com> Signed-off-by: Eric Paris <eparis@redhat.com>
* audit: comparison on interprocess fieldsPeter Moody2012-01-171-0/+39
| | | | | | | | | This allows audit to specify rules in which we compare two fields of a process. Such as is the running process uid != to the running process euid? Signed-off-by: Peter Moody <pmoody@google.com> Signed-off-by: Eric Paris <eparis@redhat.com>
* audit: implement all object interfield comparisonsPeter Moody2012-01-171-0/+29
| | | | | | | | | | This completes the matrix of interfield comparisons between uid/gid information for the current task and the uid/gid information for inodes. aka I can audit based on differences between the euid of the process and the uid of fs objects. Signed-off-by: Peter Moody <pmoody@google.com> Signed-off-by: Eric Paris <eparis@redhat.com>
* audit: allow interfield comparison between gid and ogidEric Paris2012-01-171-0/+6
| | | | | | | Allow audit rules to compare the gid of the running task to the gid of the inode in question. Signed-off-by: Eric Paris <eparis@redhat.com>
* audit: complex interfield comparison helperEric Paris2012-01-171-11/+39
| | | | | | | | Rather than code the same loop over and over implement a helper function which uses some pointer magic to make it generic enough to be used numerous places as we implement more audit interfield comparisons Signed-off-by: Eric Paris <eparis@redhat.com>
* audit: allow interfield comparison in audit rulesEric Paris2012-01-171-1/+29
| | | | | | | | | | We wish to be able to audit when a uid=500 task accesses a file which is uid=0. Or vice versa. This patch introduces a new audit filter type AUDIT_FIELD_COMPARE which takes as an 'enum' which indicates which fields should be compared. At this point we only define the task->uid vs inode->uid, but other comparisons can be added. Signed-off-by: Eric Paris <eparis@redhat.com>
* audit: do not call audit_getname on errorEric Paris2012-01-171-3/+0
| | | | | | | | Just a code cleanup really. We don't need to make a function call just for it to return on error. This also makes the VFS function even easier to follow and removes a conditional on a hot path. Signed-off-by: Eric Paris <eparis@redhat.com>
* audit: only allow tasks to set their loginuid if it is -1Eric Paris2012-01-171-1/+10
| | | | | | | | | | | | | | | | | | | | | | At the moment we allow tasks to set their loginuid if they have CAP_AUDIT_CONTROL. In reality we want tasks to set the loginuid when they log in and it be impossible to ever reset. We had to make it mutable even after it was once set (with the CAP) because on update and admin might have to restart sshd. Now sshd would get his loginuid and the next user which logged in using ssh would not be able to set his loginuid. Systemd has changed how userspace works and allowed us to make the kernel work the way it should. With systemd users (even admins) are not supposed to restart services directly. The system will restart the service for them. Thus since systemd is going to loginuid==-1, sshd would get -1, and sshd would be allowed to set a new loginuid without special permissions. If an admin in this system were to manually start an sshd he is inserting himself into the system chain of trust and thus, logically, it's his loginuid that should be used! Since we have old systems I make this a Kconfig option. Signed-off-by: Eric Paris <eparis@redhat.com>
* audit: remove task argument to audit_set_loginuidEric Paris2012-01-171-3/+3
| | | | | | | The function always deals with current. Don't expose an option pretending one can use it for something. You can't. Signed-off-by: Eric Paris <eparis@redhat.com>
* audit: allow audit matching on inode gidEric Paris2012-01-171-0/+12
| | | | | | | Much like the ability to filter audit on the uid of an inode collected, we should be able to filter on the gid of the inode. Signed-off-by: Eric Paris <eparis@redhat.com>
* audit: allow matching on obj_uidEric Paris2012-01-171-0/+12
| | | | | | | | | Allow syscall exit filter matching based on the uid of the owner of an inode used in a syscall. aka: auditctl -a always,exit -S open -F obj_uid=0 -F perm=wa Signed-off-by: Eric Paris <eparis@redhat.com>
* audit: remove audit_finish_fork as it can't be calledEric Paris2012-01-171-20/+0
| | | | | | | | | | | | | Audit entry,always rules are not allowed and are automatically changed in exit,always rules in userspace. The kernel refuses to load such rules. Thus a task in the middle of a syscall (and thus in audit_finish_fork()) can only be in one of two states: AUDIT_BUILD_CONTEXT or AUDIT_DISABLED. Since the current task cannot be in AUDIT_RECORD_CONTEXT we aren't every going to actually use the code in audit_finish_fork() since it will return without doing anything. Thus drop the code. Signed-off-by: Eric Paris <eparis@redhat.com>
* audit: inline audit_free to simplify the look of generic codeEric Paris2012-01-171-1/+1
| | | | | | make the conditional a static inline instead of doing it in generic code. Signed-off-by: Eric Paris <eparis@redhat.com>
* audit: inline checks for not needing to collect aux recordsEric Paris2012-01-171-12/+3
| | | | | | | | | A number of audit hooks make function calls before they determine that auxilary records do not need to be collected. Do those checks as static inlines since the most common case is going to be that records are not needed and we can skip the function call overhead. Signed-off-by: Eric Paris <eparis@redhat.com>
* audit: drop some potentially inadvisable likely notationsEric Paris2012-01-171-6/+6
| | | | | | | | The audit code makes heavy use of likely() and unlikely() macros, but they don't always make sense. Drop any that seem questionable and let the computer do it's thing. Signed-off-by: Eric Paris <eparis@redhat.com>
* audit: inline audit_syscall_entry to reduce burden on archsEric Paris2012-01-171-1/+1
| | | | | | | | | | | | | Every arch calls: if (unlikely(current->audit_context)) audit_syscall_entry() which requires knowledge about audit (the existance of audit_context) in the arch code. Just do it all in static inline in audit.h so that arch's can remain blissfully ignorant. Signed-off-by: Eric Paris <eparis@redhat.com>
* Audit: push audit success and retcode into arch ptrace.hEric Paris2012-01-171-4/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The audit system previously expected arches calling to audit_syscall_exit to supply as arguments if the syscall was a success and what the return code was. Audit also provides a helper AUDITSC_RESULT which was supposed to simplify things by converting from negative retcodes to an audit internal magic value stating success or failure. This helper was wrong and could indicate that a valid pointer returned to userspace was a failed syscall. The fix is to fix the layering foolishness. We now pass audit_syscall_exit a struct pt_reg and it in turns calls back into arch code to collect the return value and to determine if the syscall was a success or failure. We also define a generic is_syscall_success() macro which determines success/failure based on if the value is < -MAX_ERRNO. This works for arches like x86 which do not use a separate mechanism to indicate syscall failure. We make both the is_syscall_success() and regs_return_value() static inlines instead of macros. The reason is because the audit function must take a void* for the regs. (uml calls theirs struct uml_pt_regs instead of just struct pt_regs so audit_syscall_exit can't take a struct pt_regs). Since the audit function takes a void* we need to use static inlines to cast it back to the arch correct structure to dereference it. The other major change is that on some arches, like ia64, MIPS and ppc, we change regs_return_value() to give us the negative value on syscall failure. THE only other user of this macro, kretprobe_example.c, won't notice and it makes the value signed consistently for the audit functions across all archs. In arch/sh/kernel/ptrace_64.c I see that we were using regs[9] in the old audit code as the return value. But the ptrace_64.h code defined the macro regs_return_value() as regs[3]. I have no idea which one is correct, but this patch now uses the regs_return_value() function, so it now uses regs[3]. For powerpc we previously used regs->result but now use the regs_return_value() function which uses regs->gprs[3]. regs->gprs[3] is always positive so the regs_return_value(), much like ia64 makes it negative before calling the audit code when appropriate. Signed-off-by: Eric Paris <eparis@redhat.com> Acked-by: H. Peter Anvin <hpa@zytor.com> [for x86 portion] Acked-by: Tony Luck <tony.luck@intel.com> [for ia64] Acked-by: Richard Weinberger <richard@nod.at> [for uml] Acked-by: David S. Miller <davem@davemloft.net> [for sparc] Acked-by: Ralf Baechle <ralf@linux-mips.org> [for mips] Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> [for ppc]
* seccomp: audit abnormal end to a process due to seccompEric Paris2012-01-171-21/+29
| | | | | | | | | The audit system likes to collect information about processes that end abnormally (SIGSEGV) as this may me useful intrusion detection information. This patch adds audit support to collect information when seccomp forces a task to exit because of misbehavior in a similar way. Signed-off-by: Eric Paris <eparis@redhat.com>
* audit: check current inode and containing object when filtering on major and ↵Eric Paris2012-01-171-10/+14
| | | | | | | | | | | | | | | | | | | | | | | minor The audit system has the ability to filter on the major and minor number of the device containing the inode being operated upon. Lets say that /dev/sda1 has major,minor 8,1 and that we mount /dev/sda1 on /boot. Now lets say we add a watch with a filter on 8,1. If we proceed to open an inode inside /boot, such as /vboot/vmlinuz, we will match the major,minor filter. Lets instead assume that one were to use a tool like debugfs and were to open /dev/sda1 directly and to modify it's contents. We might hope that this would also be logged, but it isn't. The rules will check the major,minor of the device containing /dev/sda1. In other words the rule would match on the major/minor of the tmpfs mounted at /dev. I believe these rules should trigger on either device. The man page is devoid of useful information about the intended semantics. It only seems logical that if you want to know everything that happened on a major,minor that would include things that happened to the device itself... Signed-off-by: Eric Paris <eparis@redhat.com>
* audit: dynamically allocate audit_names when not enough space is in the ↵Eric Paris2012-01-171-188/+215
| | | | | | | | | | | | | | | names array This patch does 2 things. First it reduces the number of audit_names allocated in every audit context from 20 to 5. 5 should be enough for all 'normal' syscalls (rename being the worst). Some syscalls can still touch more the 5 inodes such as mount. When rpc filesystem is mounted it will create inodes and those can exceed 5. To handle that problem this patch will dynamically allocate audit_names if it needs more than 5. This should decrease the typicall memory usage while still supporting all the possible kernel operations. Signed-off-by: Eric Paris <eparis@redhat.com>
* audit: make filetype matching consistent with other filtersEric Paris2012-01-171-10/+9
| | | | | | | | | | | | | | | | | | | | Every other filter that matches part of the inodes list collected by audit will match against any of the inodes on that list. The filetype matching however had a strange way of doing things. It allowed userspace to indicated if it should match on the first of the second name collected by the kernel. Name collection ordering seems like a kernel internal and making userspace rules get that right just seems like a bad idea. As it turns out the userspace audit writers had no idea it was doing this and thus never overloaded the value field. The kernel always checked the first name collected which for the tested rules was always correct. This patch just makes the filetype matching like the major, minor, inode, and LSM rules in that it will match against any of the names collected. It also changes the rule validation to reject the old unused rule types. Noone knew it was there. Noone used it. Why keep around the extra code? Signed-off-by: Eric Paris <eparis@redhat.com>
* auditsc: propage umode_tAl Viro2012-01-041-2/+2
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* switch kern_ipc_perm to umode_tAl Viro2012-01-041-5/+5
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* switch mq_open() to umode_tAl Viro2012-01-041-3/+3
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* kernel: Map most files to use export.h instead of module.hPaul Gortmaker2011-10-311-1/+1
| | | | | | | | | | | | | | | | The changed files were only including linux/module.h for the EXPORT_SYMBOL infrastructure, and nothing else. Revector them onto the isolated export header for faster compile times. Nothing to see here but a whole lot of instances of: -#include <linux/module.h> +#include <linux/export.h> This commit is only changing the kernel dir; next targets will probably be mm, fs, the arch dirs, etc. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* atomic: use <linux/atomic.h>Arun Sharma2011-07-271-1/+1
| | | | | | | | | | | | | | This allows us to move duplicated code in <asm/atomic.h> (atomic_inc_not_zero() for now) to <linux/atomic.h> Signed-off-by: Arun Sharma <asharma@fb.com> Reviewed-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: David Miller <davem@davemloft.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* audit: acquire creds selectively to reduce atomic op overheadTony Jones2011-04-271-10/+17
| | | | | | | | | | | | | | | | | | Commit c69e8d9c01db ("CRED: Use RCU to access another task's creds and to release a task's own creds") added calls to get_task_cred and put_cred in audit_filter_rules. Profiling with a large number of audit rules active on the exit chain shows that we are spending upto 48% in this routine for syscall intensive tests, most of which is in the atomic ops. 1. The code should be accessing tsk->cred rather than tsk->real_cred. 2. Since tsk is current (or tsk is being created by copy_process) access to tsk->cred without rcu read lock is possible. At the request of the audit maintainer, a new flag has been added to audit_filter_rules in order to make this explicit and guide future code. Signed-off-by: Tony Jones <tonyj@suse.de> Acked-by: Eric Paris <eparis@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* Fix common misspellingsLucas De Marchi2011-03-311-1/+1
| | | | | | Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
* audit mmapAl Viro2010-10-301-0/+16
| | | | | | | | | | Normal syscall audit doesn't catch 5th argument of syscall. It also doesn't catch the contents of userland structures pointed to be syscall argument, so for both old and new mmap(2) ABI it doesn't record the descriptor we are mapping. For old one it also misses flags. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* vfs: add helpers to get root and pwdMiklos Szeredi2010-08-111-7/+2
| | | | | | | | | | | | Add three helpers that retrieve a refcounted copy of the root and cwd from the supplied fs_struct. get_fs_root() get_fs_pwd() get_fs_root_and_pwd() Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* fsnotify: rename fsnotify_mark_entry to just fsnotify_markEric Paris2010-07-281-2/+2
| | | | | | | The name is long and it serves no real purpose. So rename fsnotify_mark_entry to just fsnotify_mark. Signed-off-by: Eric Paris <eparis@redhat.com>
* inotify: remove inotify in kernel interfaceEric Paris2010-07-281-1/+0
| | | | | | nothing uses inotify in the kernel, drop it! Signed-off-by: Eric Paris <eparis@redhat.com>
* audit: reimplement audit_trees using fsnotify rather than inotifyEric Paris2010-07-281-2/+2
| | | | | | | Simply switch audit_trees from using inotify to using fsnotify for it's inode pinning and disappearing act information. Signed-off-by: Eric Paris <eparis@redhat.com>
* Audit: clean up the audit_watch splitEric Paris2010-07-281-3/+2
| | | | | | | | No real changes, just cleanup to the audit_watch split patch which we done with minimal code changes for easy review. Now fix interfaces to make things work better. Signed-off-by: Eric Paris <eparis@redhat.com>
* audit: preface audit printk with auditEric Paris2010-04-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | There have been a number of reports of people seeing the message: "name_count maxed, losing inode data: dev=00:05, inode=3185" in dmesg. These usually lead to people reporting problems to the filesystem group who are in turn clueless what they mean. Eventually someone finds me and I explain what is going on and that these come from the audit system. The basics of the problem is that the audit subsystem never expects a single syscall to 'interact' (for some wish washy meaning of interact) with more than 20 inodes. But in fact some operations like loading kernel modules can cause changes to lots of inodes in debugfs. There are a couple real fixes being bandied about including removing the fixed compile time limit of 20 or not auditing changes in debugfs (or both) but neither are small and obvious so I am not sending them for immediate inclusion (I hope Al forwards a real solution next devel window). In the meantime this patch simply adds 'audit' to the beginning of the crap message so if a user sees it, they come blame me first and we can talk about what it means and make sure we understand all of the reasons it can happen and make sure this gets solved correctly in the long run. Signed-off-by: Eric Paris <eparis@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo2010-03-301-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
* Lose the first argument of audit_inode_child()Al Viro2010-02-081-5/+2
| | | | | | it's always equal to ->d_name.name of the second argument Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* Sanitize f_flags helpersAl Viro2009-12-221-1/+0
| | | | | | | | * pull ACC_MODE to fs.h; we have several copies all over the place * nightmarish expression calculating f_mode by f_flags deserves a helper too (OPEN_FMODE(flags)) Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* Audit: rearrange audit_context to save 16 bytes per structEric Paris2009-09-241-3/+3
| | | | | | | | | pahole pointed out that on x86_64 struct audit_context can be rearrainged to save 16 bytes per struct. Since we have an audit_context per task this can acually be a pretty significant gain. Signed-off-by: Eric Paris <eparis@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* Fix rule eviction order for AUDIT_DIRAl Viro2009-06-241-0/+15
| | | | | | | | | If syscall removes the root of subtree being watched, we definitely do not want the rules refering that subtree to be destroyed without the syscall in question having a chance to match them. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* Audit: clean up all op= output to include string quotingEric Paris2009-06-241-6/+2
| | | | | | | | | | | | | | | | | | A number of places in the audit system we send an op= followed by a string that includes spaces. Somehow this works but it's just wrong. This patch moves all of those that I could find to be quoted. Example: Change From: type=CONFIG_CHANGE msg=audit(1244666690.117:31): auid=0 ses=1 subj=unconfined_u:unconfined_r:auditctl_t:s0-s0:c0.c1023 op=remove rule key="number2" list=4 res=0 Change To: type=CONFIG_CHANGE msg=audit(1244666690.117:31): auid=0 ses=1 subj=unconfined_u:unconfined_r:auditctl_t:s0-s0:c0.c1023 op="remove rule" key="number2" list=4 res=0 Signed-off-by: Eric Paris <eparis@redhat.com>
* audit: seperate audit inode watches into a subfileEric Paris2009-06-241-3/+3
| | | | | | | | In preparation for converting audit to use fsnotify instead of inotify we seperate the inode watching code into it's own file. This is similar to how the audit tree watching code is already seperated into audit_tree.c Signed-off-by: Eric Paris <eparis@redhat.com>
* Audit: better estimation of execve record lengthEric Paris2009-06-241-2/+2
| | | | | | | | | | The audit execve record splitting code estimates the length of the message generated. But it forgot to include the "" that wrap each string in its estimation. This means that execve messages with lots of tiny (1-2 byte) arguments could still cause records greater than 8k to be emitted. Simply fix the estimate. Signed-off-by: Eric Paris <eparis@redhat.com>
* Audit: remove spaces from audit_log_d_pathEric Paris2009-04-051-1/+1
| | | | | | | | | audit_log_d_path had spaces in the strings which would be emitted on the error paths. This patch simply replaces those spaces with an _ or removes the needless spaces entirely. Signed-off-by: Eric Paris <eparis@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* audit: audit_set_auditable defined but not usedEric Paris2009-04-051-8/+8
| | | | | | | | | | | | | | | | after 0590b9335a1c72a3f0defcc6231287f7817e07c8 audit_set_auditable() is now only used by the audit tree code. If CONFIG_AUDIT_TREE is unset it will be defined but unused. This patch simply moves the function inside a CONFIG_AUDIT_TREE block. cc1: warnings being treated as errors /home/acme_unencrypted/git/linux-2.6-tip/kernel/auditsc.c:745: error: ‘audit_set_auditable’ defined but not used make[2]: *** [kernel/auditsc.o] Error 1 make[1]: *** [kernel] Error 2 make[1]: *** Waiting for unfinished jobs.... Signed-off-by: Eric Paris <eparis@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* audit: Fix possible return value truncation in audit_get_context()Paul Moore2009-04-051-1/+1
| | | | | | | | | | The audit subsystem treats syscall return codes as type long, unfortunately the audit_get_context() function mistakenly converts the return code to an int type in the parameters which could cause problems on systems where the sizeof(int) != sizeof(long). Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* auditsc: fix kernel-doc notationRandy Dunlap2009-04-051-2/+2
| | | | | | | | | | | | | | Fix auditsc kernel-doc notation: Warning(linux-2.6.28-git7//kernel/auditsc.c:2156): No description found for parameter 'attr' Warning(linux-2.6.28-git7//kernel/auditsc.c:2156): Excess function parameter 'u_attr' description in '__audit_mq_open' Warning(linux-2.6.28-git7//kernel/auditsc.c:2204): No description found for parameter 'notification' Warning(linux-2.6.28-git7//kernel/auditsc.c:2204): Excess function parameter 'u_notification' description in '__audit_mq_notify' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> cc: Al Viro <viro@zeniv.linux.org.uk> cc: Eric Paris <eparis@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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