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Date:	Sat, 02 Feb 2008 22:11:18 -0800
From:	"Andrew G. Morgan" <morgan@...nel.org>
To:	serge@...lyn.com
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Security Modules List 
	<linux-security-module@...r.kernel.org>,
	linux-kernel@...r.kernel.org, "Serge E. Hallyn" <serue@...ibm.com>
Subject: Re: [PATCH] per-process securebits

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serge@...lyn.com wrote:
| Quoting Andrew G. Morgan (morgan@...nel.org):
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|>
|> Here is the patch to add per-process securebits.
|>
|> Its all code that lives inside the capability LSM and the new securebits
|> implementation is only active if CONFIG_SECURITY_FILE_CAPABILITIES is
|> enabled (it doesn't make much sense to support this feature without
|> filesystem capabilities).
|>
|> The patch assumes the CAP_SETPCAP fix of last week, but is otherwise on
|> top of 2.6.24-rc8-mm1.
|
| Hey Andrew,  I'm about to set up some ltp tests, but noticed the
| following patch is needed on top of yours.

Sorry about that. I'm guessing you have a more pedantic compiler than
mine (x86_64)!

Acked-by: Andrew G. Morgan <morgan@...nel.org>

Cheers

Andrew

|
| -serge
|
|>From feac61b47be8375e25b0f6ee876cf096c8b1b9cc Mon Sep 17 00:00:00 2001
| From: Serge E. Hallyn <serue@...ibm.com>
| Date: Fri, 1 Feb 2008 14:13:29 +0000
| Subject: [PATCH 1/1] per-process securebits: security_task_prctl takes
a long
|
| Fix a mismatch between prototypes and callers for the updated
| security_task_prctl().  The newly introduced argument, error,
| is a long, not an int.
|
| Signed-off-by: Serge E. Hallyn <serue@...ibm.com>
| ---
|  include/linux/security.h |    8 ++++----
|  security/commoncap.c     |    4 ++--
|  security/dummy.c         |    2 +-
|  security/security.c      |    2 +-
|  security/selinux/hooks.c |    2 +-
|  5 files changed, 9 insertions(+), 9 deletions(-)
|
| diff --git a/include/linux/security.h b/include/linux/security.h
| index c550079..c789a0d 100644
| --- a/include/linux/security.h
| +++ b/include/linux/security.h
| @@ -63,7 +63,7 @@ extern int cap_task_post_setuid (uid_t old_ruid,
uid_t old_euid, uid_t old_suid,
|  extern void cap_task_reparent_to_init (struct task_struct *p);
|  extern int cap_task_kill(struct task_struct *p, struct siginfo *info,
int sig, u32 secid);
|  extern int cap_task_prctl(int option, unsigned long arg2, unsigned
long arg3,
| -			  unsigned long arg4, unsigned long arg5, int *rc_p);
| +			  unsigned long arg4, unsigned long arg5, long *rc_p);
|  extern int cap_task_setscheduler (struct task_struct *p, int policy,
struct sched_param *lp);
|  extern int cap_task_setioprio (struct task_struct *p, int ioprio);
|  extern int cap_task_setnice (struct task_struct *p, int nice);
| @@ -1348,7 +1348,7 @@ struct security_operations {
|  	int (*task_wait) (struct task_struct * p);
|  	int (*task_prctl) (int option, unsigned long arg2,
|  			   unsigned long arg3, unsigned long arg4,
| -			   unsigned long arg5, int *rc_p);
| +			   unsigned long arg5, long *rc_p);
|  	void (*task_reparent_to_init) (struct task_struct * p);
|  	void (*task_to_inode)(struct task_struct *p, struct inode *inode);
|
| @@ -1602,7 +1602,7 @@ int security_task_kill(struct task_struct *p,
struct siginfo *info,
|  			int sig, u32 secid);
|  int security_task_wait(struct task_struct *p);
|  int security_task_prctl(int option, unsigned long arg2, unsigned long
arg3,
| -			 unsigned long arg4, unsigned long arg5, int *rc_p);
| +			 unsigned long arg4, unsigned long arg5, long *rc_p);
|  void security_task_reparent_to_init(struct task_struct *p);
|  void security_task_to_inode(struct task_struct *p, struct inode *inode);
|  int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
| @@ -2151,7 +2151,7 @@ static inline int security_task_wait (struct
task_struct *p)
|  static inline int security_task_prctl (int option, unsigned long arg2,
|  				       unsigned long arg3,
|  				       unsigned long arg4,
| -				       unsigned long arg5, int *rc_p)
| +				       unsigned long arg5, long *rc_p)
|  {
|  	return 0;
|  }
| diff --git a/security/commoncap.c b/security/commoncap.c
| index 9b87182..858387a 100644
| --- a/security/commoncap.c
| +++ b/security/commoncap.c
| @@ -611,9 +611,9 @@ int cap_task_kill(struct task_struct *p, struct
siginfo *info,
|  #endif
|
|  int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
| -		   unsigned long arg4, unsigned long arg5, int *rc_p)
| +		   unsigned long arg4, unsigned long arg5, long *rc_p)
|  {
| -	int error = 0;
| +	long error = 0;
|
|  	switch (option) {
|  	case PR_CAPBSET_READ:
| diff --git a/security/dummy.c b/security/dummy.c
| index c9e6d9f..e79f988 100644
| --- a/security/dummy.c
| +++ b/security/dummy.c
| @@ -595,7 +595,7 @@ static int dummy_task_kill (struct task_struct *p,
struct siginfo *info,
|  }
|
|  static int dummy_task_prctl (int option, unsigned long arg2, unsigned
long arg3,
| -			     unsigned long arg4, unsigned long arg5, int *rc_p)
| +			     unsigned long arg4, unsigned long arg5, long *rc_p)
|  {
|  	return 0;
|  }
| diff --git a/security/security.c b/security/security.c
| index c3cc14e..6f53155 100644
| --- a/security/security.c
| +++ b/security/security.c
| @@ -683,7 +683,7 @@ int security_task_wait(struct task_struct *p)
|  }
|
|  int security_task_prctl(int option, unsigned long arg2, unsigned long
arg3,
| -			 unsigned long arg4, unsigned long arg5, int *rc_p)
| +			 unsigned long arg4, unsigned long arg5, long *rc_p)
|  {
|  	return security_ops->task_prctl(option, arg2, arg3, arg4, arg5, rc_p);
|  }
| diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
| index 3c88858..a553984 100644
| --- a/security/selinux/hooks.c
| +++ b/security/selinux/hooks.c
| @@ -3210,7 +3210,7 @@ static int selinux_task_prctl(int option,
|  			      unsigned long arg3,
|  			      unsigned long arg4,
|  			      unsigned long arg5,
| -			      int *rc_p)
| +			      long *rc_p)
|  {
|  	/* The current prctl operations do not appear to require
|  	   any SELinux controls since they merely observe or modify

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