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libselinux/libselinux-rhat.patch

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diff --git a/libselinux/include/selinux/selinux.h b/libselinux/include/selinux/selinux.h
index a4079aa..80ba628 100644
--- a/libselinux/include/selinux/selinux.h
+++ b/libselinux/include/selinux/selinux.h
@@ -177,6 +177,7 @@ extern void selinux_set_callback(int type, union selinux_callback cb);
#define SELINUX_WARNING 1
#define SELINUX_INFO 2
#define SELINUX_AVC 3
+#define SELINUX_TRANS_DIR "/var/run/setrans"
/* Compute an access decision. */
extern int security_compute_av(const security_context_t scon,
@@ -498,6 +499,7 @@ extern const char *selinux_policy_root(void);
/* These functions return the paths to specific files under the
policy root directory. */
+extern const char *selinux_current_policy_path(void);
extern const char *selinux_binary_policy_path(void);
extern const char *selinux_failsafe_context_path(void);
extern const char *selinux_removable_context_path(void);
diff --git a/libselinux/man/man3/security_compute_av.3 b/libselinux/man/man3/security_compute_av.3
index c6837fc..de62d26 100644
--- a/libselinux/man/man3/security_compute_av.3
+++ b/libselinux/man/man3/security_compute_av.3
@@ -37,9 +37,9 @@ the SELinux policy database in the kernel
.sp
.BI "int security_compute_user_raw(security_context_t "scon ", const char *" username ", security_context_t **" con );
.sp
-.BI "int security_get_initial_context(const char *" name ", security_context_t " con );
+.BI "int security_get_initial_context(const char *" name ", security_context_t *" con );
.sp
-.BI "int security_get_initial_context_raw(const char *" name ", security_context_t " con );
+.BI "int security_get_initial_context_raw(const char *" name ", security_context_t *" con );
.sp
.BI "int selinux_check_access(const security_context_t " scon ", const security_context_t " tcon ", const char *" class ", const char *" perm ", void *" auditdata);
.sp
diff --git a/libselinux/man/man3/selinux_binary_policy_path.3 b/libselinux/man/man3/selinux_binary_policy_path.3
index ec97dcf..503c52c 100644
--- a/libselinux/man/man3/selinux_binary_policy_path.3
+++ b/libselinux/man/man3/selinux_binary_policy_path.3
@@ -1,6 +1,6 @@
.TH "selinux_binary_policy_path" "3" "15 November 2004" "dwalsh@redhat.com" "SELinux API Documentation"
.SH "NAME"
-selinux_path, selinux_policy_root, selinux_binary_policy_path,
+selinux_path, selinux_policy_root, selinux_binary_policy_path, selinux_current_policy_path,
selinux_failsafe_context_path, selinux_removable_context_path,
selinux_default_context_path, selinux_user_contexts_path,
selinux_file_context_path, selinux_media_context_path,
@@ -17,6 +17,8 @@ directories and files
.sp
.B const char *selinux_binary_policy_path(void);
.sp
+.B const char *selinux_current_policy_path(void);
+.sp
.B const char *selinux_failsafe_context_path(void);
.sp
.B const char *selinux_removable_context_path(void);
@@ -55,6 +57,9 @@ returns the top-level policy directory.
.BR selinux_binary_policy_path ()
returns the binary policy file loaded into kernel.
.sp
+.BR selinux_current_policy_path ()
+returns the currently loaded policy file from the kernel.
+.sp
.BR selinux_default_type_path ()
returns the context file mapping roles to default types.
.sp
diff --git a/libselinux/man/man3/selinux_current_policy_path.3 b/libselinux/man/man3/selinux_current_policy_path.3
new file mode 100644
index 0000000..175a611
--- /dev/null
+++ b/libselinux/man/man3/selinux_current_policy_path.3
@@ -0,0 +1 @@
+.so man3/selinux_binary_policy_path.3
diff --git a/libselinux/man/man8/selinux.8 b/libselinux/man/man8/selinux.8
index a328866..50868e4 100644
--- a/libselinux/man/man8/selinux.8
+++ b/libselinux/man/man8/selinux.8
@@ -37,20 +37,22 @@ The
configuration file also controls what policy
is active on the system. SELinux allows for multiple policies to be
installed on the system, but only one policy may be active at any
-given time. At present, two kinds of SELinux policy exist: targeted
-and strict. The targeted policy is designed as a policy where most
-processes operate without restrictions, and only specific services are
+given time. At present, multiple kinds of SELinux policy exist: targeted,
+mls for example. The targeted policy is designed as a policy where most
+user processes operate without restrictions, and only specific services are
placed into distinct security domains that are confined by the policy.
For example, the user would run in a completely unconfined domain
while the named daemon or apache daemon would run in a specific domain
-tailored to its operation. The strict policy is designed as a policy
-where all processes are partitioned into fine-grained security domains
-and confined by policy. It is anticipated in the future that other
-policies will be created (Multi-Level Security for example). You can
+tailored to its operation. The MLS (Multi-Level Security) policy is designed
+as a policy where all processes are partitioned into fine-grained security
+domains and confined by policy. MLS also supports the Bell And LaPadula model, where processes are not only confined by the type but also the level of the data.
+
+You can
define which policy you will run by setting the
.B SELINUXTYPE
environment variable within
.IR /etc/selinux/config .
+You must reboot and possibly relabel if you change the policy type to have it take effect on the system.
The corresponding
policy configuration for each such policy must be installed in the
.I /etc/selinux/{SELINUXTYPE}/
@@ -58,7 +60,7 @@ directories.
A given SELinux policy can be customized further based on a set of
compile-time tunable options and a set of runtime policy booleans.
-.B \%system\-config\-securitylevel
+.B \%system\-config\-selinux
allows customization of these booleans and tunables.
Many domains that are protected by SELinux also include SELinux man pages explaining how to customize their policy.
@@ -86,11 +88,13 @@ This manual page was written by Dan Walsh <dwalsh@redhat.com>.
.nh
.BR booleans (8),
.BR setsebool (8),
-.BR selinuxenabled (8),
+.BR sepolicy (8),
+.BR system-config-selinux (8),
.BR togglesebool (8),
.BR restorecon (8),
+.BR fixfiles (8),
.BR setfiles (8),
-.BR semange (8),
+.BR semanage (8),
.BR sepolicy(8)
Every confined service on the system has a man page in the following format:
diff --git a/libselinux/src/audit2why.c b/libselinux/src/audit2why.c
index ffe381b..560bc25 100644
--- a/libselinux/src/audit2why.c
+++ b/libselinux/src/audit2why.c
@@ -210,27 +210,12 @@ static int __policy_init(const char *init_path)
return 1;
}
} else {
- vers = sepol_policy_kern_vers_max();
- if (vers < 0) {
- snprintf(errormsg, sizeof(errormsg),
- "Could not get policy version: %s\n",
- strerror(errno));
- PyErr_SetString( PyExc_ValueError, errormsg);
- return 1;
- }
- snprintf(path, PATH_MAX, "%s.%d",
- selinux_binary_policy_path(), vers);
- fp = fopen(path, "r");
- while (!fp && errno == ENOENT && --vers) {
- snprintf(path, PATH_MAX, "%s.%d",
- selinux_binary_policy_path(), vers);
- fp = fopen(path, "r");
- }
+ fp = fopen(selinux_current_policy_path(), "r");
if (!fp) {
snprintf(errormsg, sizeof(errormsg),
- "unable to open %s.%d: %s\n",
- selinux_binary_policy_path(),
- security_policyvers(), strerror(errno));
+ "unable to open %s: %s\n",
+ selinux_current_policy_path(),
+ strerror(errno));
PyErr_SetString( PyExc_ValueError, errormsg);
return 1;
}
@@ -310,10 +295,12 @@ static PyObject *init(PyObject *self __attribute__((unused)), PyObject *args) {
}
#define RETURN(X) \
- PyTuple_SetItem(result, 0, Py_BuildValue("i", X)); \
- return result;
+ { \
+ return Py_BuildValue("iO", (X), Py_None); \
+ }
static PyObject *analyze(PyObject *self __attribute__((unused)) , PyObject *args) {
+ char *reason_buf = NULL;
security_context_t scon;
security_context_t tcon;
char *tclassstr;
@@ -328,10 +315,6 @@ static PyObject *analyze(PyObject *self __attribute__((unused)) , PyObject *args
struct sepol_av_decision avd;
int rc;
int i=0;
- PyObject *result = PyTuple_New(2);
- if (!result) return NULL;
- Py_INCREF(Py_None);
- PyTuple_SetItem(result, 1, Py_None);
if (!PyArg_ParseTuple(args,(char *)"sssO!:audit2why",&scon,&tcon,&tclassstr,&PyList_Type, &listObj))
return NULL;
@@ -342,22 +325,21 @@ static PyObject *analyze(PyObject *self __attribute__((unused)) , PyObject *args
/* should raise an error here. */
if (numlines < 0) return NULL; /* Not a list */
- if (!avc) {
+ if (!avc)
RETURN(NOPOLICY)
- }
rc = sepol_context_to_sid(scon, strlen(scon) + 1, &ssid);
- if (rc < 0) {
+ if (rc < 0)
RETURN(BADSCON)
- }
+
rc = sepol_context_to_sid(tcon, strlen(tcon) + 1, &tsid);
- if (rc < 0) {
+ if (rc < 0)
RETURN(BADTCON)
- }
+
tclass = string_to_security_class(tclassstr);
- if (!tclass) {
+ if (!tclass)
RETURN(BADTCLASS)
- }
+
/* Convert the permission list to an AV. */
av = 0;
@@ -377,21 +359,20 @@ static PyObject *analyze(PyObject *self __attribute__((unused)) , PyObject *args
#endif
perm = string_to_av_perm(tclass, permstr);
- if (!perm) {
+ if (!perm)
RETURN(BADPERM)
- }
+
av |= perm;
}
/* Reproduce the computation. */
- rc = sepol_compute_av_reason(ssid, tsid, tclass, av, &avd, &reason);
- if (rc < 0) {
+ rc = sepol_compute_av_reason_buffer(ssid, tsid, tclass, av, &avd, &reason, &reason_buf, 0);
+ if (rc < 0)
RETURN(BADCOMPUTE)
- }
- if (!reason) {
+ if (!reason)
RETURN(ALLOW)
- }
+
if (reason & SEPOL_COMPUTEAV_TE) {
avc->ssid = ssid;
avc->tsid = tsid;
@@ -404,28 +385,34 @@ static PyObject *analyze(PyObject *self __attribute__((unused)) , PyObject *args
RETURN(TERULE)
}
} else {
- PyTuple_SetItem(result, 0, Py_BuildValue("i", BOOLEAN));
+ PyObject *outboollist;
struct boolean_t *b = bools;
int len=0;
while (b->name) {
len++; b++;
}
b = bools;
- PyObject *outboollist = PyTuple_New(len);
+ outboollist = PyList_New(len);
len=0;
while(b->name) {
- PyObject *bool = Py_BuildValue("(si)", b->name, b->active);
- PyTuple_SetItem(outboollist, len++, bool);
+ PyObject *bool_ = Py_BuildValue("(si)", b->name, b->active);
+ PyList_SetItem(outboollist, len++, bool_);
b++;
}
free(bools);
- PyTuple_SetItem(result, 1, outboollist);
- return result;
+ /* 'N' steals the reference to outboollist */
+ return Py_BuildValue("iN", BOOLEAN, outboollist);
}
}
if (reason & SEPOL_COMPUTEAV_CONS) {
- RETURN(CONSTRAINT);
+ if (reason_buf) {
+ PyObject *result = NULL;
+ result = Py_BuildValue("is", CONSTRAINT, reason_buf);
+ free(reason_buf);
+ return result;
+ }
+ RETURN(CONSTRAINT)
}
if (reason & SEPOL_COMPUTEAV_RBAC)
diff --git a/libselinux/src/avc.c b/libselinux/src/avc.c
index 802a07f..6ff83a7 100644
--- a/libselinux/src/avc.c
+++ b/libselinux/src/avc.c
@@ -827,6 +827,7 @@ int avc_has_perm(security_id_t ssid, security_id_t tsid,
errsave = errno;
avc_audit(ssid, tsid, tclass, requested, &avd, rc, auditdata);
errno = errsave;
+ if (!avc_enforcing) return 0;
return rc;
}
diff --git a/libselinux/src/get_context_list.c b/libselinux/src/get_context_list.c
index b9e8002..355730a 100644
--- a/libselinux/src/get_context_list.c
+++ b/libselinux/src/get_context_list.c
@@ -426,7 +426,7 @@ int get_ordered_context_list(const char *user,
/* Initialize ordering array. */
ordering = malloc(nreach * sizeof(unsigned int));
if (!ordering)
- goto oom_order;
+ goto failsafe;
for (i = 0; i < nreach; i++)
ordering[i] = nreach;
@@ -435,7 +435,7 @@ int get_ordered_context_list(const char *user,
fname_len = strlen(user_contexts_path) + strlen(user) + 2;
fname = malloc(fname_len);
if (!fname)
- goto oom_order;
+ goto failsafe;
snprintf(fname, fname_len, "%s%s", user_contexts_path, user);
fp = fopen(fname, "r");
if (fp) {
@@ -465,31 +465,28 @@ int get_ordered_context_list(const char *user,
}
}
+ if (!nordered)
+ goto failsafe;
+
/* Apply the ordering. */
- if (nordered) {
- co = malloc(nreach * sizeof(struct context_order));
- if (!co)
- goto oom_order;
- for (i = 0; i < nreach; i++) {
- co[i].con = reachable[i];
- co[i].order = ordering[i];
- }
- qsort(co, nreach, sizeof(struct context_order), order_compare);
- for (i = 0; i < nreach; i++)
- reachable[i] = co[i].con;
- free(co);
+ co = malloc(nreach * sizeof(struct context_order));
+ if (!co)
+ goto failsafe;
+ for (i = 0; i < nreach; i++) {
+ co[i].con = reachable[i];
+ co[i].order = ordering[i];
}
+ qsort(co, nreach, sizeof(struct context_order), order_compare);
+ for (i = 0; i < nreach; i++)
+ reachable[i] = co[i].con;
+ free(co);
- /* Return the ordered list.
- If we successfully ordered it, then only report the ordered entries
- to the caller. Otherwise, fall back to the entire reachable list. */
- if (nordered && nordered < nreach) {
+ /* Only report the ordered entries to the caller. */
+ if (nordered < nreach) {
for (i = nordered; i < nreach; i++)
free(reachable[i]);
reachable[nordered] = NULL;
rc = nordered;
- } else {
- rc = nreach;
}
out:
@@ -523,14 +520,6 @@ int get_ordered_context_list(const char *user,
}
rc = 1; /* one context in the list */
goto out;
-
- oom_order:
- /* Unable to order context list due to OOM condition.
- Fall back to unordered reachable context list. */
- fprintf(stderr, "%s: out of memory, unable to order list\n",
- __FUNCTION__);
- rc = nreach;
- goto out;
}
hidden_def(get_ordered_context_list)
diff --git a/libselinux/src/matchpathcon.c b/libselinux/src/matchpathcon.c
index 2d7369e..2a00807 100644
--- a/libselinux/src/matchpathcon.c
+++ b/libselinux/src/matchpathcon.c
@@ -2,6 +2,7 @@
#include <string.h>
#include <errno.h>
#include <stdio.h>
+#include <syslog.h>
#include "selinux_internal.h"
#include "label_internal.h"
#include "callbacks.h"
@@ -62,7 +63,7 @@ static void
{
va_list ap;
va_start(ap, fmt);
- vfprintf(stderr, fmt, ap);
+ vsyslog(LOG_ERR, fmt, ap);
va_end(ap);
}
diff --git a/libselinux/src/selinux_config.c b/libselinux/src/selinux_config.c
index 296f357..4913c55 100644
--- a/libselinux/src/selinux_config.c
+++ b/libselinux/src/selinux_config.c
@@ -8,6 +8,7 @@
#include <limits.h>
#include <unistd.h>
#include <pthread.h>
+#include "policy.h"
#include "selinux_internal.h"
#include "get_default_type_internal.h"
@@ -303,6 +304,29 @@ const char *selinux_binary_policy_path(void)
hidden_def(selinux_binary_policy_path)
+const char *selinux_current_policy_path(void)
+{
+ int rc = 0;
+ int vers = 0;
+ static char policy_path[PATH_MAX];
+
+ snprintf(policy_path, sizeof(policy_path), "%s/policy", selinux_mnt);
+ if (access(policy_path, F_OK) != 0 ) {
+ vers = security_policyvers();
+ do {
+ /* Check prior versions to see if old policy is available */
+ snprintf(policy_path, sizeof(policy_path), "%s.%d",
+ selinux_binary_policy_path(), vers);
+ } while ((rc = access(policy_path, F_OK)) && --vers > 0);
+
+ if (rc) return NULL;
+ }
+
+ return policy_path;
+}
+
+hidden_def(selinux_current_policy_path)
+
const char *selinux_file_context_path(void)
{
return get_path(FILE_CONTEXTS);
diff --git a/libselinux/src/selinux_internal.h b/libselinux/src/selinux_internal.h
index 2c7c85c..4a4aebc 100644
--- a/libselinux/src/selinux_internal.h
+++ b/libselinux/src/selinux_internal.h
@@ -60,6 +60,7 @@ hidden_proto(selinux_mkload_policy)
hidden_proto(security_setenforce)
hidden_proto(security_deny_unknown)
hidden_proto(selinux_boolean_sub)
+ hidden_proto(selinux_current_policy_path)
hidden_proto(selinux_binary_policy_path)
hidden_proto(selinux_booleans_subs_path)
hidden_proto(selinux_default_context_path)
diff --git a/libselinux/src/setrans_internal.h b/libselinux/src/setrans_internal.h
index a801ee8..b3bdca2 100644
--- a/libselinux/src/setrans_internal.h
+++ b/libselinux/src/setrans_internal.h
@@ -1,6 +1,7 @@
/* Author: Trusted Computer Solutions, Inc. */
+#include <selinux/selinux.h>
-#define SETRANS_UNIX_SOCKET "/var/run/setrans/.setrans-unix"
+#define SETRANS_UNIX_SOCKET SELINUX_TRANS_DIR "/.setrans-unix"
#define RAW_TO_TRANS_CONTEXT 2
#define TRANS_TO_RAW_CONTEXT 3
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