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authorDavid Howells <dhowells@redhat.com>2008-11-14 10:39:18 +1100
committerJames Morris <jmorris@namei.org>2008-11-14 10:39:18 +1100
commit86a264abe542cfececb4df129bc45a0338d8cdb9 (patch)
tree30152f04ba847f311028d5ca697f864c16c7ebb3 /kernel/uid16.c
parentf1752eec6145c97163dbce62d17cf5d928e28a27 (diff)
downloadlinux-sh-86a264abe542cfececb4df129bc45a0338d8cdb9.tar.gz
CRED: Wrap current->cred and a few other accessors
Wrap current->cred and a few other accessors to hide their actual implementation. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: James Morris <jmorris@namei.org> Acked-by: Serge Hallyn <serue@us.ibm.com> Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'kernel/uid16.c')
-rw-r--r--kernel/uid16.c31
1 files changed, 16 insertions, 15 deletions
diff --git a/kernel/uid16.c b/kernel/uid16.c
index 71f07fc39fea..2460c3199b5a 100644
--- a/kernel/uid16.c
+++ b/kernel/uid16.c
@@ -84,11 +84,12 @@ asmlinkage long sys_setresuid16(old_uid_t ruid, old_uid_t euid, old_uid_t suid)
asmlinkage long sys_getresuid16(old_uid_t __user *ruid, old_uid_t __user *euid, old_uid_t __user *suid)
{
+ const struct cred *cred = current_cred();
int retval;
- if (!(retval = put_user(high2lowuid(current->cred->uid), ruid)) &&
- !(retval = put_user(high2lowuid(current->cred->euid), euid)))
- retval = put_user(high2lowuid(current->cred->suid), suid);
+ if (!(retval = put_user(high2lowuid(cred->uid), ruid)) &&
+ !(retval = put_user(high2lowuid(cred->euid), euid)))
+ retval = put_user(high2lowuid(cred->suid), suid);
return retval;
}
@@ -104,11 +105,12 @@ asmlinkage long sys_setresgid16(old_gid_t rgid, old_gid_t egid, old_gid_t sgid)
asmlinkage long sys_getresgid16(old_gid_t __user *rgid, old_gid_t __user *egid, old_gid_t __user *sgid)
{
+ const struct cred *cred = current_cred();
int retval;
- if (!(retval = put_user(high2lowgid(current->cred->gid), rgid)) &&
- !(retval = put_user(high2lowgid(current->cred->egid), egid)))
- retval = put_user(high2lowgid(current->cred->sgid), sgid);
+ if (!(retval = put_user(high2lowgid(cred->gid), rgid)) &&
+ !(retval = put_user(high2lowgid(cred->egid), egid)))
+ retval = put_user(high2lowgid(cred->sgid), sgid);
return retval;
}
@@ -161,25 +163,24 @@ static int groups16_from_user(struct group_info *group_info,
asmlinkage long sys_getgroups16(int gidsetsize, old_gid_t __user *grouplist)
{
- int i = 0;
+ const struct cred *cred = current_cred();
+ int i;
if (gidsetsize < 0)
return -EINVAL;
- get_group_info(current->cred->group_info);
- i = current->cred->group_info->ngroups;
+ i = cred->group_info->ngroups;
if (gidsetsize) {
if (i > gidsetsize) {
i = -EINVAL;
goto out;
}
- if (groups16_to_user(grouplist, current->cred->group_info)) {
+ if (groups16_to_user(grouplist, cred->group_info)) {
i = -EFAULT;
goto out;
}
}
out:
- put_group_info(current->cred->group_info);
return i;
}
@@ -210,20 +211,20 @@ asmlinkage long sys_setgroups16(int gidsetsize, old_gid_t __user *grouplist)
asmlinkage long sys_getuid16(void)
{
- return high2lowuid(current->cred->uid);
+ return high2lowuid(current_uid());
}
asmlinkage long sys_geteuid16(void)
{
- return high2lowuid(current->cred->euid);
+ return high2lowuid(current_euid());
}
asmlinkage long sys_getgid16(void)
{
- return high2lowgid(current->cred->gid);
+ return high2lowgid(current_gid());
}
asmlinkage long sys_getegid16(void)
{
- return high2lowgid(current->cred->egid);
+ return high2lowgid(current_egid());
}