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-rw-r--r--security/selinux/Kconfig27
-rw-r--r--security/selinux/avc.c16
-rw-r--r--security/selinux/hooks.c22
-rw-r--r--security/selinux/include/avc_ss.h4
-rw-r--r--security/selinux/selinuxfs.c18
-rw-r--r--security/selinux/ss/context.h2
-rw-r--r--security/selinux/ss/services.c26
7 files changed, 46 insertions, 69 deletions
diff --git a/security/selinux/Kconfig b/security/selinux/Kconfig
index 26301dd651d3..bca1b74a4a2f 100644
--- a/security/selinux/Kconfig
+++ b/security/selinux/Kconfig
@@ -94,33 +94,6 @@ config SECURITY_SELINUX_CHECKREQPROT_VALUE
If you are unsure how to answer this question, answer 1.
-config SECURITY_SELINUX_ENABLE_SECMARK_DEFAULT
- bool "NSA SELinux enable new secmark network controls by default"
- depends on SECURITY_SELINUX
- default n
- help
- This option determines whether the new secmark-based network
- controls will be enabled by default. If not, the old internal
- per-packet controls will be enabled by default, preserving
- old behavior.
-
- If you enable the new controls, you will need updated
- SELinux userspace libraries, tools and policy. Typically,
- your distribution will provide these and enable the new controls
- in the kernel they also distribute.
-
- Note that this option can be overridden at boot with the
- selinux_compat_net parameter, and after boot via
- /selinux/compat_net. See Documentation/kernel-parameters.txt
- for details on this parameter.
-
- If you enable the new network controls, you will likely
- also require the SECMARK and CONNSECMARK targets, as
- well as any conntrack helpers for protocols which you
- wish to control.
-
- If you are unsure what to do here, select N.
-
config SECURITY_SELINUX_POLICYDB_VERSION_MAX
bool "NSA SELinux maximum supported policy format version"
depends on SECURITY_SELINUX
diff --git a/security/selinux/avc.c b/security/selinux/avc.c
index d43bd6baeeaa..eb41f43e2772 100644
--- a/security/selinux/avc.c
+++ b/security/selinux/avc.c
@@ -53,18 +53,20 @@ static const char *class_to_string[] = {
#undef S_
static const struct av_inherit av_inherit[] = {
-#define S_(c, i, b) { c, common_##i##_perm_to_string, b },
+#define S_(c, i, b) { .tclass = c,\
+ .common_pts = common_##i##_perm_to_string,\
+ .common_base = b },
#include "av_inherit.h"
#undef S_
};
const struct selinux_class_perm selinux_class_perm = {
- av_perm_to_string,
- ARRAY_SIZE(av_perm_to_string),
- class_to_string,
- ARRAY_SIZE(class_to_string),
- av_inherit,
- ARRAY_SIZE(av_inherit)
+ .av_perm_to_string = av_perm_to_string,
+ .av_pts_len = ARRAY_SIZE(av_perm_to_string),
+ .class_to_string = class_to_string,
+ .cts_len = ARRAY_SIZE(class_to_string),
+ .av_inherit = av_inherit,
+ .av_inherit_len = ARRAY_SIZE(av_inherit)
};
#define AVC_CACHE_SLOTS 512
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index dbeaa783b2a9..00815973d412 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -1433,12 +1433,13 @@ static int current_has_perm(const struct task_struct *tsk,
/* Check whether a task is allowed to use a capability. */
static int task_has_capability(struct task_struct *tsk,
+ const struct cred *cred,
int cap, int audit)
{
struct avc_audit_data ad;
struct av_decision avd;
u16 sclass;
- u32 sid = task_sid(tsk);
+ u32 sid = cred_sid(cred);
u32 av = CAP_TO_MASK(cap);
int rc;
@@ -1865,15 +1866,16 @@ static int selinux_capset(struct cred *new, const struct cred *old,
return cred_has_perm(old, new, PROCESS__SETCAP);
}
-static int selinux_capable(struct task_struct *tsk, int cap, int audit)
+static int selinux_capable(struct task_struct *tsk, const struct cred *cred,
+ int cap, int audit)
{
int rc;
- rc = secondary_ops->capable(tsk, cap, audit);
+ rc = secondary_ops->capable(tsk, cred, cap, audit);
if (rc)
return rc;
- return task_has_capability(tsk, cap, audit);
+ return task_has_capability(tsk, cred, cap, audit);
}
static int selinux_sysctl_get_sid(ctl_table *table, u16 tclass, u32 *sid)
@@ -2037,7 +2039,8 @@ static int selinux_vm_enough_memory(struct mm_struct *mm, long pages)
{
int rc, cap_sys_admin = 0;
- rc = selinux_capable(current, CAP_SYS_ADMIN, SECURITY_CAP_NOAUDIT);
+ rc = selinux_capable(current, current_cred(), CAP_SYS_ADMIN,
+ SECURITY_CAP_NOAUDIT);
if (rc == 0)
cap_sys_admin = 1;
@@ -2880,7 +2883,8 @@ static int selinux_inode_getsecurity(const struct inode *inode, const char *name
* and lack of permission just means that we fall back to the
* in-core context value, not a denial.
*/
- error = selinux_capable(current, CAP_MAC_ADMIN, SECURITY_CAP_NOAUDIT);
+ error = selinux_capable(current, current_cred(), CAP_MAC_ADMIN,
+ SECURITY_CAP_NOAUDIT);
if (!error)
error = security_sid_to_context_force(isec->sid, &context,
&size);
@@ -4185,7 +4189,7 @@ static int selinux_sock_rcv_skb_iptables_compat(struct sock *sk,
static int selinux_sock_rcv_skb_compat(struct sock *sk, struct sk_buff *skb,
u16 family)
{
- int err;
+ int err = 0;
struct sk_security_struct *sksec = sk->sk_security;
u32 peer_sid;
u32 sk_sid = sksec->sid;
@@ -4202,7 +4206,7 @@ static int selinux_sock_rcv_skb_compat(struct sock *sk, struct sk_buff *skb,
if (selinux_compat_net)
err = selinux_sock_rcv_skb_iptables_compat(sk, skb, &ad,
family, addrp);
- else
+ else if (selinux_secmark_enabled())
err = avc_has_perm(sk_sid, skb->secmark, SECCLASS_PACKET,
PACKET__RECV, &ad);
if (err)
@@ -4705,7 +4709,7 @@ static unsigned int selinux_ip_postroute_compat(struct sk_buff *skb,
if (selinux_ip_postroute_iptables_compat(skb->sk, ifindex,
&ad, family, addrp))
return NF_DROP;
- } else {
+ } else if (selinux_secmark_enabled()) {
if (avc_has_perm(sksec->sid, skb->secmark,
SECCLASS_PACKET, PACKET__SEND, &ad))
return NF_DROP;
diff --git a/security/selinux/include/avc_ss.h b/security/selinux/include/avc_ss.h
index c0d314d9f8e1..bb1ec801bdfe 100644
--- a/security/selinux/include/avc_ss.h
+++ b/security/selinux/include/avc_ss.h
@@ -17,16 +17,16 @@ struct av_perm_to_string {
};
struct av_inherit {
- u16 tclass;
const char **common_pts;
u32 common_base;
+ u16 tclass;
};
struct selinux_class_perm {
const struct av_perm_to_string *av_perm_to_string;
u32 av_pts_len;
- const char **class_to_string;
u32 cts_len;
+ const char **class_to_string;
const struct av_inherit *av_inherit;
u32 av_inherit_len;
};
diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c
index e5520996a75b..01ec6d2c6b97 100644
--- a/security/selinux/selinuxfs.c
+++ b/security/selinux/selinuxfs.c
@@ -47,13 +47,7 @@ static char *policycap_names[] = {
unsigned int selinux_checkreqprot = CONFIG_SECURITY_SELINUX_CHECKREQPROT_VALUE;
-#ifdef CONFIG_SECURITY_SELINUX_ENABLE_SECMARK_DEFAULT
-#define SELINUX_COMPAT_NET_VALUE 0
-#else
-#define SELINUX_COMPAT_NET_VALUE 1
-#endif
-
-int selinux_compat_net = SELINUX_COMPAT_NET_VALUE;
+int selinux_compat_net = 0;
static int __init checkreqprot_setup(char *str)
{
@@ -494,7 +488,13 @@ static ssize_t sel_write_compat_net(struct file *file, const char __user *buf,
if (sscanf(page, "%d", &new_value) != 1)
goto out;
- selinux_compat_net = new_value ? 1 : 0;
+ if (new_value) {
+ printk(KERN_NOTICE
+ "SELinux: compat_net is deprecated, please use secmark"
+ " instead\n");
+ selinux_compat_net = 1;
+ } else
+ selinux_compat_net = 0;
length = count;
out:
free_page((unsigned long) page);
@@ -847,8 +847,6 @@ static struct inode *sel_make_inode(struct super_block *sb, int mode)
if (ret) {
ret->i_mode = mode;
- ret->i_uid = ret->i_gid = 0;
- ret->i_blocks = 0;
ret->i_atime = ret->i_mtime = ret->i_ctime = CURRENT_TIME;
}
return ret;
diff --git a/security/selinux/ss/context.h b/security/selinux/ss/context.h
index 658c2bd17da8..d9dd7a2f6a8a 100644
--- a/security/selinux/ss/context.h
+++ b/security/selinux/ss/context.h
@@ -27,9 +27,9 @@ struct context {
u32 user;
u32 role;
u32 type;
+ u32 len; /* length of string in bytes */
struct mls_range range;
char *str; /* string representation if context cannot be mapped. */
- u32 len; /* length of string in bytes */
};
static inline void mls_context_init(struct context *c)
diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index 343c8ab14af0..c65e4fe4a0f1 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -2602,7 +2602,7 @@ int selinux_audit_rule_init(u32 field, u32 op, char *rulestr, void **vrule)
case AUDIT_OBJ_ROLE:
case AUDIT_OBJ_TYPE:
/* only 'equals' and 'not equals' fit user, role, and type */
- if (op != AUDIT_EQUAL && op != AUDIT_NOT_EQUAL)
+ if (op != Audit_equal && op != Audit_not_equal)
return -EINVAL;
break;
case AUDIT_SUBJ_SEN:
@@ -2736,10 +2736,10 @@ int selinux_audit_rule_match(u32 sid, u32 field, u32 op, void *vrule,
case AUDIT_SUBJ_USER:
case AUDIT_OBJ_USER:
switch (op) {
- case AUDIT_EQUAL:
+ case Audit_equal:
match = (ctxt->user == rule->au_ctxt.user);
break;
- case AUDIT_NOT_EQUAL:
+ case Audit_not_equal:
match = (ctxt->user != rule->au_ctxt.user);
break;
}
@@ -2747,10 +2747,10 @@ int selinux_audit_rule_match(u32 sid, u32 field, u32 op, void *vrule,
case AUDIT_SUBJ_ROLE:
case AUDIT_OBJ_ROLE:
switch (op) {
- case AUDIT_EQUAL:
+ case Audit_equal:
match = (ctxt->role == rule->au_ctxt.role);
break;
- case AUDIT_NOT_EQUAL:
+ case Audit_not_equal:
match = (ctxt->role != rule->au_ctxt.role);
break;
}
@@ -2758,10 +2758,10 @@ int selinux_audit_rule_match(u32 sid, u32 field, u32 op, void *vrule,
case AUDIT_SUBJ_TYPE:
case AUDIT_OBJ_TYPE:
switch (op) {
- case AUDIT_EQUAL:
+ case Audit_equal:
match = (ctxt->type == rule->au_ctxt.type);
break;
- case AUDIT_NOT_EQUAL:
+ case Audit_not_equal:
match = (ctxt->type != rule->au_ctxt.type);
break;
}
@@ -2774,31 +2774,31 @@ int selinux_audit_rule_match(u32 sid, u32 field, u32 op, void *vrule,
field == AUDIT_OBJ_LEV_LOW) ?
&ctxt->range.level[0] : &ctxt->range.level[1]);
switch (op) {
- case AUDIT_EQUAL:
+ case Audit_equal:
match = mls_level_eq(&rule->au_ctxt.range.level[0],
level);
break;
- case AUDIT_NOT_EQUAL:
+ case Audit_not_equal:
match = !mls_level_eq(&rule->au_ctxt.range.level[0],
level);
break;
- case AUDIT_LESS_THAN:
+ case Audit_lt:
match = (mls_level_dom(&rule->au_ctxt.range.level[0],
level) &&
!mls_level_eq(&rule->au_ctxt.range.level[0],
level));
break;
- case AUDIT_LESS_THAN_OR_EQUAL:
+ case Audit_le:
match = mls_level_dom(&rule->au_ctxt.range.level[0],
level);
break;
- case AUDIT_GREATER_THAN:
+ case Audit_gt:
match = (mls_level_dom(level,
&rule->au_ctxt.range.level[0]) &&
!mls_level_eq(level,
&rule->au_ctxt.range.level[0]));
break;
- case AUDIT_GREATER_THAN_OR_EQUAL:
+ case Audit_ge:
match = mls_level_dom(level,
&rule->au_ctxt.range.level[0]);
break;
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-28 22:42:05 +0300