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| author | Al Viro <viro@zeniv.linux.org.uk> | 2012-05-30 13:30:51 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-05-31 13:11:54 -0400 |
| commit | e5467859f7f79b69fc49004403009dfdba3bec53 (patch) | |
| tree | 73b011daf79eeddd61bbcaf65cd197b5e5f6f149 /security/selinux | |
| parent | d007794a182bc072a7b7479909dbd0d67ba341be (diff) | |
| download | linux-e5467859f7f79b69fc49004403009dfdba3bec53.tar.gz linux-e5467859f7f79b69fc49004403009dfdba3bec53.tar.bz2 linux-e5467859f7f79b69fc49004403009dfdba3bec53.zip | |
split ->file_mmap() into ->mmap_addr()/->mmap_file()
... i.e. file-dependent and address-dependent checks.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'security/selinux')
| -rw-r--r-- | security/selinux/hooks.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index 25c125eaa3d8..372ec6502aa8 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -3083,9 +3083,7 @@ error: return rc; } -static int selinux_file_mmap(struct file *file, unsigned long reqprot, - unsigned long prot, unsigned long flags, - unsigned long addr, unsigned long addr_only) +static int selinux_mmap_addr(unsigned long addr) { int rc = 0; u32 sid = current_sid(); @@ -3104,10 +3102,12 @@ static int selinux_file_mmap(struct file *file, unsigned long reqprot, } /* do DAC check on address space usage */ - rc = cap_mmap_addr(addr); - if (rc || addr_only) - return rc; + return cap_mmap_addr(addr); +} +static int selinux_mmap_file(struct file *file, unsigned long reqprot, + unsigned long prot, unsigned long flags) +{ if (selinux_checkreqprot) prot = reqprot; @@ -5570,7 +5570,8 @@ static struct security_operations selinux_ops = { .file_alloc_security = selinux_file_alloc_security, .file_free_security = selinux_file_free_security, .file_ioctl = selinux_file_ioctl, - .file_mmap = selinux_file_mmap, + .mmap_file = selinux_mmap_file, + .mmap_addr = selinux_mmap_addr, .file_mprotect = selinux_file_mprotect, .file_lock = selinux_file_lock, .file_fcntl = selinux_file_fcntl, |