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userns: Convert apparmor to use kuid and kgid where appropriate 

Cc: John Johansen <john.johansen@canonical.com>
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
This commit is contained in:
Eric W. Biederman 2012-02-07 16:33:13 -08:00
parent e4849737f7
commit 2db8145293
5 changed files with 12 additions and 11 deletions
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1
init/Kconfig
View File

@ -964,7 +964,6 @@ config UIDGID_CONVERTED
# Security modules
depends on SECURITY_TOMOYO = n
depends on SECURITY_APPARMOR = n
config UIDGID_STRICT_TYPE_CHECKS
bool "Require conversions between uid/gids and their internal representation"

4
security/apparmor/domain.c
View File

@ -721,7 +721,7 @@ audit:
if (!permtest)
error = aa_audit_file(profile, &perms, GFP_KERNEL,
OP_CHANGE_HAT, AA_MAY_CHANGEHAT, NULL,
target, 0, info, error);
target, GLOBAL_ROOT_UID, info, error);
out:
aa_put_profile(hat);
@ -848,7 +848,7 @@ int aa_change_profile(const char *ns_name, const char *hname, bool onexec,
audit:
if (!permtest)
error = aa_audit_file(profile, &perms, GFP_KERNEL, op, request,
name, hname, 0, info, error);
name, hname, GLOBAL_ROOT_UID, info, error);
aa_put_namespace(ns);
aa_put_profile(target);

12
security/apparmor/file.c
View File

@ -65,7 +65,7 @@ static void audit_file_mask(struct audit_buffer *ab, u32 mask)
static void file_audit_cb(struct audit_buffer *ab, void *va)
{
struct common_audit_data *sa = va;
uid_t fsuid = current_fsuid();
kuid_t fsuid = current_fsuid();
if (sa->aad->fs.request & AA_AUDIT_FILE_MASK) {
audit_log_format(ab, " requested_mask=");
@ -76,8 +76,10 @@ static void file_audit_cb(struct audit_buffer *ab, void *va)
audit_file_mask(ab, sa->aad->fs.denied);
}
if (sa->aad->fs.request & AA_AUDIT_FILE_MASK) {
audit_log_format(ab, " fsuid=%d", fsuid);
audit_log_format(ab, " ouid=%d", sa->aad->fs.ouid);
audit_log_format(ab, " fsuid=%d",
from_kuid(&init_user_ns, fsuid));
audit_log_format(ab, " ouid=%d",
from_kuid(&init_user_ns, sa->aad->fs.ouid));
}
if (sa->aad->fs.target) {
@ -103,7 +105,7 @@ static void file_audit_cb(struct audit_buffer *ab, void *va)
*/
int aa_audit_file(struct aa_profile *profile, struct file_perms *perms,
gfp_t gfp, int op, u32 request, const char *name,
const char *target, uid_t ouid, const char *info, int error)
const char *target, kuid_t ouid, const char *info, int error)
{
int type = AUDIT_APPARMOR_AUTO;
struct common_audit_data sa;
@ -201,7 +203,7 @@ static struct file_perms compute_perms(struct aa_dfa *dfa, unsigned int state,
*/
perms.kill = 0;
if (current_fsuid() == cond->uid) {
if (uid_eq(current_fsuid(), cond->uid)) {
perms.allow = map_old_perms(dfa_user_allow(dfa, state));
perms.audit = map_old_perms(dfa_user_audit(dfa, state));
perms.quiet = map_old_perms(dfa_user_quiet(dfa, state));

2
security/apparmor/include/audit.h
View File

@ -125,7 +125,7 @@ struct apparmor_audit_data {
const char *target;
u32 request;
u32 denied;
uid_t ouid;
kuid_t ouid;
} fs;
};
};

4
security/apparmor/include/file.h
View File

@ -71,7 +71,7 @@ struct path;
/* need to make conditional which ones are being set */
struct path_cond {
uid_t uid;
kuid_t uid;
umode_t mode;
};
@ -146,7 +146,7 @@ static inline u16 dfa_map_xindex(u16 mask)
int aa_audit_file(struct aa_profile *profile, struct file_perms *perms,
gfp_t gfp, int op, u32 request, const char *name,
const char *target, uid_t ouid, const char *info, int error);
const char *target, kuid_t ouid, const char *info, int error);
/**
* struct aa_file_rules - components used for file rule permissions