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authorAl Viro <viro@zeniv.linux.org.uk>2009-12-24 06:58:56 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2010-01-14 09:05:26 -0500
commit6d125529c6cbfe570ce3bf9a0728548f087499da (patch)
tree89ba434f76d224741bd0e0b0ef02b10a4ff95136
parent4ecf09fd3a7c8858198875171b684c73338fad83 (diff)
downloadlinux-linaro-android-6d125529c6cbfe570ce3bf9a0728548f087499da.tar.gz
Fix ACC_MODE() for real
commit 5300990c0370e804e49d9a59d928c5d53fb73487 had stepped on a rather nasty mess: definitions of ACC_MODE used to be different. Fixed the resulting breakage, converting them to variant that takes O_... value; all callers have that and it actually simplifies life (see tomoyo part of changes). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
-rw-r--r--fs/namei.c2
-rw-r--r--include/linux/fs.h2
-rw-r--r--security/tomoyo/tomoyo.c7
3 files changed, 3 insertions, 8 deletions
diff --git a/fs/namei.c b/fs/namei.c
index 1b26b162066..d930f1856ed 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1620,7 +1620,7 @@ struct file *do_filp_open(int dfd, const char *pathname,
open_flag |= O_DSYNC;
if (!acc_mode)
- acc_mode = MAY_OPEN | ACC_MODE(flag);
+ acc_mode = MAY_OPEN | ACC_MODE(open_flag);
/* O_TRUNC implies we need access checks for write permissions */
if (flag & O_TRUNC)
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 9147ca88f25..b1bcb275b59 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2463,7 +2463,7 @@ int proc_nr_files(struct ctl_table *table, int write,
int __init get_filesystem_list(char *buf);
-#define ACC_MODE(x) ("\000\004\002\006"[(x)&O_ACCMODE])
+#define ACC_MODE(x) ("\004\002\006\006"[(x)&O_ACCMODE])
#define OPEN_FMODE(flag) ((__force fmode_t)((flag + 1) & O_ACCMODE))
#endif /* __KERNEL__ */
diff --git a/security/tomoyo/tomoyo.c b/security/tomoyo/tomoyo.c
index 8a00ade8516..2aceebf5f35 100644
--- a/security/tomoyo/tomoyo.c
+++ b/security/tomoyo/tomoyo.c
@@ -80,9 +80,8 @@ static int tomoyo_bprm_check_security(struct linux_binprm *bprm)
return tomoyo_find_next_domain(bprm);
/*
* Read permission is checked against interpreters using next domain.
- * '1' is the result of open_to_namei_flags(O_RDONLY).
*/
- return tomoyo_check_open_permission(domain, &bprm->file->f_path, 1);
+ return tomoyo_check_open_permission(domain, &bprm->file->f_path, O_RDONLY);
}
static int tomoyo_path_truncate(struct path *path, loff_t length,
@@ -184,10 +183,6 @@ static int tomoyo_file_fcntl(struct file *file, unsigned int cmd,
static int tomoyo_dentry_open(struct file *f, const struct cred *cred)
{
int flags = f->f_flags;
-
- if ((flags + 1) & O_ACCMODE)
- flags++;
- flags |= f->f_flags & (O_APPEND | O_TRUNC);
/* Don't check read permission here if called from do_execve(). */
if (current->in_execve)
return 0;