* as published by the Free Software Foundation.
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/sysctl.h>
#include <linux/audit.h>
#include <linux/string.h>
+#include <linux/selinux.h>
#include "avc.h"
#include "objsec.h"
return task_has_perm(current, p, PROCESS__GETSESSION);
}
+static void selinux_task_getsecid(struct task_struct *p, u32 *secid)
+{
+ selinux_get_task_sid(p, secid);
+}
+
static int selinux_task_setgroups(struct group_info *group_info)
{
/* See the comment for setuid above. */
return task_has_perm(current, p, PROCESS__SETSCHED);
}
+static int selinux_task_getioprio(struct task_struct *p)
+{
+ return task_has_perm(current, p, PROCESS__GETSCHED);
+}
+
static int selinux_task_setrlimit(unsigned int resource, struct rlimit *new_rlim)
{
struct rlimit *old_rlim = current->signal->rlim + resource;
return task_has_perm(current, p, PROCESS__SETSCHED);
}
-static int selinux_task_kill(struct task_struct *p, struct siginfo *info, int sig)
+static int selinux_task_kill(struct task_struct *p, struct siginfo *info,
+ int sig, u32 secid)
{
u32 perm;
int rc;
+ struct task_security_struct *tsec;
- rc = secondary_ops->task_kill(p, info, sig);
+ rc = secondary_ops->task_kill(p, info, sig, secid);
if (rc)
return rc;
perm = PROCESS__SIGNULL; /* null signal; existence test */
else
perm = signal_to_av(sig);
-
- return task_has_perm(current, p, perm);
+ tsec = p->security;
+ if (secid)
+ rc = avc_has_perm(secid, tsec->sid, SECCLASS_PROCESS, perm, NULL);
+ else
+ rc = task_has_perm(current, p, perm);
+ return rc;
}
static int selinux_task_prctl(int option,
static int selinux_socket_getpeersec_dgram(struct sk_buff *skb, char **secdata, u32 *seclen)
{
int err = 0;
- u32 peer_sid = selinux_socket_getpeer_dgram(skb);
+ u32 peer_sid;
+
+ if (skb->sk->sk_family == PF_UNIX)
+ selinux_get_inode_sid(SOCK_INODE(skb->sk->sk_socket),
+ &peer_sid);
+ else
+ peer_sid = selinux_socket_getpeer_dgram(skb);
if (peer_sid == SECSID_NULL)
return -EINVAL;
return 0;
}
-
-
static int selinux_sk_alloc_security(struct sock *sk, int family, gfp_t priority)
{
return sk_alloc_security(sk, family, priority);
static int selinux_netlink_send(struct sock *sk, struct sk_buff *skb)
{
- struct task_security_struct *tsec;
- struct av_decision avd;
int err;
err = secondary_ops->netlink_send(sk, skb);
if (err)
return err;
- tsec = current->security;
-
- avd.allowed = 0;
- avc_has_perm_noaudit(tsec->sid, tsec->sid,
- SECCLASS_CAPABILITY, ~0, &avd);
- cap_mask(NETLINK_CB(skb).eff_cap, avd.allowed);
-
if (policydb_loaded_version >= POLICYDB_VERSION_NLCLASS)
err = selinux_nlmsg_perm(sk, skb);
return err;
}
-static int selinux_netlink_recv(struct sk_buff *skb)
+static int selinux_netlink_recv(struct sk_buff *skb, int capability)
{
- if (!cap_raised(NETLINK_CB(skb).eff_cap, CAP_NET_ADMIN))
- return -EPERM;
- return 0;
+ int err;
+ struct avc_audit_data ad;
+
+ err = secondary_ops->netlink_recv(skb, capability);
+ if (err)
+ return err;
+
+ AVC_AUDIT_DATA_INIT(&ad, CAP);
+ ad.u.cap = capability;
+
+ return avc_has_perm(NETLINK_CB(skb).sid, NETLINK_CB(skb).sid,
+ SECCLASS_CAPABILITY, CAP_TO_MASK(capability), &ad);
}
static int ipc_alloc_security(struct task_struct *task,
.task_setpgid = selinux_task_setpgid,
.task_getpgid = selinux_task_getpgid,
.task_getsid = selinux_task_getsid,
+ .task_getsecid = selinux_task_getsecid,
.task_setgroups = selinux_task_setgroups,
.task_setnice = selinux_task_setnice,
.task_setioprio = selinux_task_setioprio,
+ .task_getioprio = selinux_task_getioprio,
.task_setrlimit = selinux_task_setrlimit,
.task_setscheduler = selinux_task_setscheduler,
.task_getscheduler = selinux_task_getscheduler,