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userapps is generating sandbox code in polgengui

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This commit is contained in:
Dan Walsh 2012-07-19 13:21:49 -04:00
parent 9c3e56bd25
commit 7e579fc0a2
3 changed files with 289 additions and 98 deletions
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250
policycoreutils-rhat.patch
View File

@ -17,6 +17,49 @@ index 9cfe3bc..9c242d4 100644
INOTIFYH = $(shell ls /usr/include/sys/inotify.h 2>/dev/null)
diff --git a/policycoreutils/audit2allow/audit2allow b/policycoreutils/audit2allow/audit2allow
index e9d5882..8e0c396 100644
--- a/policycoreutils/audit2allow/audit2allow
+++ b/policycoreutils/audit2allow/audit2allow
@@ -236,7 +236,7 @@ class AuditToPolicy:
import seobject
for i in self.__parser.avc_msgs:
rc = i.type
- bools = i.bools
+ data = i.data
if rc >= 0:
print "%s\n\tWas caused by:" % i.message
if rc == audit2why.ALLOW:
@@ -250,15 +250,15 @@ class AuditToPolicy:
print "\t\tPossible mismatch between current in-memory boolean settings vs. permanent ones.\n"
continue
if rc == audit2why.BOOLEAN:
- if len(bools) > 1:
+ if len(data) > 1:
print "\tOne of the following booleans was set incorrectly."
- for b in bools:
+ for b in data:
print "\tDescription:\n\t%s\n" % seobject.boolean_desc(b[0])
print "\tAllow access by executing:\n\t# setsebool -P %s %d" % (b[0], b[1])
else:
- print "\tThe boolean %s was set incorrectly. " % (bools[0][0])
- print "\tDescription:\n\t%s\n" % seobject.boolean_desc(bools[0][0])
- print "\tAllow access by executing:\n\t# setsebool -P %s %d" % (bools[0][0], bools[0][1])
+ print "\tThe boolean %s was set incorrectly. " % (data[0][0])
+ print "\tDescription:\n\t%s\n" % seobject.boolean_desc(data[0][0])
+ print "\tAllow access by executing:\n\t# setsebool -P %s %d" % (data[0][0], data[0][1])
continue
if rc == audit2why.TERULE:
@@ -270,6 +270,8 @@ class AuditToPolicy:
print "\t\tPolicy constraint violation.\n"
print "\t\tMay require adding a type attribute to the domain or type to satisfy the constraint.\n"
print "\t\tConstraints are defined in the policy sources in policy/constraints (general), policy/mcs (MCS), and policy/mls (MLS).\n"
+ for reason in data:
+ print "\t\tNote: Possible cause is the source and target %s differ\n" % reason
continue
if rc == audit2why.RBAC:
diff --git a/policycoreutils/audit2allow/sepolgen-ifgen b/policycoreutils/audit2allow/sepolgen-ifgen
index ef4bec3..9b313ec 100644
--- a/policycoreutils/audit2allow/sepolgen-ifgen
@ -284928,7 +284971,7 @@ index b31bafe..c79b4bc 100644
if (!root_path) {
printf("malloc error (%s)\n", strerror(errno));
diff --git a/policycoreutils/setfiles/restore.c b/policycoreutils/setfiles/restore.c
index 9a7d315..1d0c354 100644
index 9a7d315..35b32a5 100644
--- a/policycoreutils/setfiles/restore.c
+++ b/policycoreutils/setfiles/restore.c
@@ -1,5 +1,6 @@
@ -284968,17 +285011,18 @@ index 9a7d315..1d0c354 100644
if (!r_opts->hnd) {
perror(r_opts->selabel_opt_path);
exit(1);
@@ -104,8 +109,7 @@ static int restore(FTSENT *ftsent)
@@ -104,8 +109,8 @@ static int restore(FTSENT *ftsent)
{
char *my_file = strdupa(ftsent->fts_path);
int ret = -1;
- char *context, *newcon;
- int user_only_changed = 0;
+ security_context_t curcon = NULL, newcon = NULL;
+ float progress;
if (match(my_file, ftsent->fts_statp, &newcon) < 0)
/* Check for no matching specification. */
@@ -114,7 +118,12 @@ static int restore(FTSENT *ftsent)
@@ -114,7 +119,14 @@ static int restore(FTSENT *ftsent)
if (r_opts->progress) {
r_opts->count++;
if (r_opts->count % STAR_COUNT == 0) {
@ -284986,13 +285030,15 @@ index 9a7d315..1d0c354 100644
+ if (r_opts->progress == 1) {
+ fprintf(stdout, "*");
+ } else {
+ int progress = 100.0 * r_opts->count / r_opts->nfile;
+ fprintf(stdout, "\r%d%%", progress);
+ if (r_opts->nfile > 0) {
+ progress = (r_opts->count < r_opts->nfile) ? (100.0 * r_opts->count / r_opts->nfile) : 100;
+ fprintf(stdout, "\r%-.1f%%", progress);
+ }
+ }
fflush(stdout);
}
}
@@ -139,74 +148,105 @@ static int restore(FTSENT *ftsent)
@@ -139,74 +151,105 @@ static int restore(FTSENT *ftsent)
printf("%s: %s matched by %s\n", r_opts->progname, my_file, newcon);
}
@ -285075,7 +285121,7 @@ index 9a7d315..1d0c354 100644
+ if (! conb) {
+ context_free(cona);
+ goto out;
}
+ }
+
+ types_differ = strcmp(context_type_get(cona), context_type_get(conb));
+ if (types_differ) {
@ -285092,16 +285138,16 @@ index 9a7d315..1d0c354 100644
+
+ if (!types_differ || err) {
+ goto out;
+ }
+ }
+
+ if (r_opts->verbose) {
+ printf("%s reset %s context %s->%s\n",
+ r_opts->progname, my_file, curcon ?: "", newcon);
}
}
- if (r_opts->logging && !user_only_changed) {
- if (context)
+ if (r_opts->verbose) {
+ printf("%s reset %s context %s->%s\n",
+ r_opts->progname, my_file, curcon ?: "", newcon);
+ }
+
+ if (r_opts->logging && r_opts->change) {
+ if (curcon)
syslog(LOG_INFO, "relabeling %s from %s to %s\n",
@ -285127,7 +285173,7 @@ index 9a7d315..1d0c354 100644
goto out;
/*
@@ -218,14 +258,17 @@ static int restore(FTSENT *ftsent)
@@ -218,14 +261,17 @@ static int restore(FTSENT *ftsent)
r_opts->progname, my_file, newcon, strerror(errno));
goto skip;
}
@ -285146,97 +285192,33 @@ index 9a7d315..1d0c354 100644
freecon(newcon);
return ERR;
}
@@ -250,6 +293,44 @@ static int apply_spec(FTSENT *ftsent)
@@ -250,6 +296,8 @@ static int apply_spec(FTSENT *ftsent)
return rc;
}
+static unsigned round_up(unsigned x, unsigned m)
+{
+ return m * ((-1 + m + x) / m);
+}
+
+static unsigned int *bitmap_alloc(unsigned nbits)
+{
+ unsigned const w_bitmap = round_up(nbits, 8*sizeof(int)) /
+ (8*sizeof(int));
+ return calloc(w_bitmap, sizeof(int));
+}
+
+static void bitmap_free(unsigned int *bmap)
+{
+ free(bmap);
+}
+
+#define LG_BPW ((4==sizeof(int)) \
+ ? 5 \
+ : ((8==sizeof(int)) \
+ ? 6 \
+ : 31 ))
+
+static unsigned int bitmap_test(unsigned int *const map, unsigned bit)
+{
+ return
+ map[bit>>LG_BPW] & (1u<<((-1+ (8*sizeof(int))) & bit));
+}
+
+static unsigned int bitmap_set(unsigned int *const map, unsigned bit)
+{
+ unsigned int old = bitmap_test(map, bit);
+ map[bit>>LG_BPW] |= (1u<<((-1+ (8*sizeof(int))) & bit));
+ return old;
+}
+
+#include <sys/statvfs.h>
+
static int process_one(char *name, int recurse_this_path)
{
int rc = 0;
@@ -284,6 +365,14 @@ static int process_one(char *name, int recurse_this_path)
/* Keep the inode of the first one. */
dev_num = ftsent->fts_statp->st_dev;
+ unsigned int *i_bitmap = 0;
+ struct statvfs statvfs_buf;
+ memset(&statvfs_buf, 0, sizeof(statvfs_buf));
+ if (!statvfs(name, &statvfs_buf)) {
+ r_opts->nfile = statvfs_buf.f_files - statvfs_buf.f_ffree;
+ i_bitmap = bitmap_alloc(statvfs_buf.f_files);
+ }
+
do {
rc = 0;
/* Skip the post order nodes. */
@@ -299,6 +388,21 @@ static int process_one(char *name, int recurse_this_path)
@@ -299,6 +347,7 @@ static int process_one(char *name, int recurse_this_path)
continue;
}
}
+ /* FTS_SEEDOT is not set, so fts_read() ignores "." and "..".
+ * Thus the hardlinks for a directory should be ignored.
+ */
+ if (ftsent->fts_info != FTS_D
+ && 1 < ftsent->fts_statp->st_nlink) {
+ /* Adjust for hardlinks. */
+ ino_t const inum = ftsent->fts_statp->st_ino;
+ if (inum < statvfs_buf.f_files /* paranoia? */
+ && !bitmap_test(i_bitmap, inum)) {
+ /* First time for this .st_ino */
+ bitmap_set(i_bitmap, inum);
+ r_opts->nfile += -1+
+ ftsent->fts_statp->st_nlink;
+ }
+ }
+
rc = apply_spec(ftsent);
if (rc == SKIP)
fts_set(fts_handle, ftsent, FTS_SKIP);
@@ -314,6 +418,7 @@ out:
filespec_eval();
filespec_destroy();
}
+ bitmap_free(i_bitmap);
if (fts_handle)
fts_close(fts_handle);
return rc;
@@ -328,10 +433,7 @@ int process_glob(char *name, int recurse) {
@@ -307,7 +356,7 @@ static int process_one(char *name, int recurse_this_path)
if (!recurse_this_path)
break;
} while ((ftsent = fts_read(fts_handle)) != NULL);
-
+
out:
if (r_opts->add_assoc) {
if (!r_opts->quiet)
@@ -328,10 +377,7 @@ int process_glob(char *name, int recurse) {
size_t i = 0;
int errors;
memset(&globbuf, 0, sizeof(globbuf));
@ -285248,7 +285230,7 @@ index 9a7d315..1d0c354 100644
if (errors)
return errors;
@@ -341,7 +443,9 @@ int process_glob(char *name, int recurse) {
@@ -341,7 +387,9 @@ int process_glob(char *name, int recurse) {
continue;
if (len > 0 && strcmp(&globbuf.gl_pathv[i][len], "/..") == 0)
continue;
@ -285259,7 +285241,7 @@ index 9a7d315..1d0c354 100644
}
globfree(&globbuf);
return errors;
@@ -447,22 +551,6 @@ int add_exclude(const char *directory)
@@ -447,22 +495,6 @@ int add_exclude(const char *directory)
return 0;
}
@ -285282,8 +285264,70 @@ index 9a7d315..1d0c354 100644
/*
* Evaluate the association hash table distribution.
*/
@@ -595,12 +627,22 @@ static int filespec_add(ino_t ino, const security_context_t con, const char *fil
}
#include <sys/utsname.h>
+int file_system_count(char *name) {
+ struct statvfs statvfs_buf;
+ int nfile = 0;
+ memset(&statvfs_buf, 0, sizeof(statvfs_buf));
+ if (!statvfs(name, &statvfs_buf)) {
+ nfile = statvfs_buf.f_files - statvfs_buf.f_ffree;
+ }
+ return nfile;
+}
+
/*
Search /proc/mounts for all file systems that do not support extended
attributes and add them to the exclude directory table. File systems
- that support security labels have the seclabel option.
+ that support security labels have the seclabel option, return total file count
*/
-void exclude_non_seclabel_mounts()
+int exclude_non_seclabel_mounts()
{
struct utsname uts;
FILE *fp;
@@ -609,16 +651,16 @@ void exclude_non_seclabel_mounts()
int index = 0, found = 0;
char *mount_info[4];
char *buf = NULL, *item;
-
+ int nfile = 0;
/* Check to see if the kernel supports seclabel */
if (uname(&uts) == 0 && strverscmp(uts.release, "2.6.30") < 0)
- return;
+ return 0;
if (is_selinux_enabled() <= 0)
- return;
+ return 0;
fp = fopen("/proc/mounts", "r");
if (!fp)
- return;
+ return 0;
while ((num = getline(&buf, &len, fp)) != -1) {
found = 0;
@@ -645,6 +687,7 @@ void exclude_non_seclabel_mounts()
while (item != NULL) {
if (strcmp(item, "seclabel") == 0) {
found = 1;
+ nfile += file_system_count(mount_info[1]);
break;
}
item = strtok(NULL, ",");
@@ -657,5 +700,7 @@ void exclude_non_seclabel_mounts()
free(buf);
fclose(fp);
+ /* return estimated #Files + 5% for directories and hard links */
+ return nfile * 1.05;
}
diff --git a/policycoreutils/setfiles/restore.h b/policycoreutils/setfiles/restore.h
index ac27222..1a3da73 100644
index ac27222..dfb38d0 100644
--- a/policycoreutils/setfiles/restore.h
+++ b/policycoreutils/setfiles/restore.h
@@ -14,6 +14,7 @@
@ -285312,6 +285356,14 @@ index ac27222..1a3da73 100644
};
void restore_init(struct restore_opts *opts);
@@ -49,6 +52,6 @@ int exclude(const char *path);
void remove_exclude(const char *directory);
int process_one_realpath(char *name, int recurse);
int process_glob(char *name, int recurse);
-void exclude_non_seclabel_mounts();
+int exclude_non_seclabel_mounts();
#endif
diff --git a/policycoreutils/setfiles/restorecon.8 b/policycoreutils/setfiles/restorecon.8
index c8ea4bb..65a59de 100644
--- a/policycoreutils/setfiles/restorecon.8
@ -285424,7 +285476,7 @@ index 7f700ca..2741919 100644
.B \-W
display warnings about entries that had no matching files.
diff --git a/policycoreutils/setfiles/setfiles.c b/policycoreutils/setfiles/setfiles.c
index fa0cd6a..f64ee16 100644
index fa0cd6a..904d061 100644
--- a/policycoreutils/setfiles/setfiles.c
+++ b/policycoreutils/setfiles/setfiles.c
@@ -39,7 +39,7 @@ void usage(const char *const name)
@ -285469,8 +285521,12 @@ index fa0cd6a..f64ee16 100644
altpath = NULL;
@@ -217,7 +221,7 @@ int main(int argc, char **argv)
exclude_non_seclabel_mounts();
@@ -214,10 +218,10 @@ int main(int argc, char **argv)
}
/* This must happen before getopt. */
- exclude_non_seclabel_mounts();
+ r_opts.nfile = exclude_non_seclabel_mounts();
/* Process any options. */
- while ((opt = getopt(argc, argv, "c:de:f:ilnpqrsvo:FRW0")) > 0) {

135
policycoreutils-sepolgen.patch
View File

@ -1,3 +1,92 @@
diff --git a/sepolgen/src/sepolgen/access.py b/sepolgen/src/sepolgen/access.py
index 649735f..cf13210 100644
--- a/sepolgen/src/sepolgen/access.py
+++ b/sepolgen/src/sepolgen/access.py
@@ -87,7 +87,7 @@ class AccessVector:
self.perms = refpolicy.IdSet()
self.audit_msgs = []
self.type = audit2why.TERULE
- self.bools = []
+ self.data = []
# The direction of the information flow represented by this
# access vector - used for matching
@@ -256,7 +256,7 @@ class AccessVectorSet:
for av in l:
self.add_av(AccessVector(av))
- def add(self, src_type, tgt_type, obj_class, perms, audit_msg=None, avc_type=audit2why.TERULE, bools=[]):
+ def add(self, src_type, tgt_type, obj_class, perms, audit_msg=None, avc_type=audit2why.TERULE, data=[]):
"""Add an access vector to the set.
"""
tgt = self.src.setdefault(src_type, { })
@@ -269,7 +269,7 @@ class AccessVectorSet:
access.src_type = src_type
access.tgt_type = tgt_type
access.obj_class = obj_class
- access.bools = bools
+ access.data = data
access.type = avc_type
cls[obj_class, avc_type] = access
diff --git a/sepolgen/src/sepolgen/audit.py b/sepolgen/src/sepolgen/audit.py
index 9e2ccee..73c60f6 100644
--- a/sepolgen/src/sepolgen/audit.py
+++ b/sepolgen/src/sepolgen/audit.py
@@ -173,7 +173,6 @@ class AVCMessage(AuditMessage):
self.accesses = []
self.denial = True
self.type = audit2why.TERULE
- self.bools = []
def __parse_access(self, recs, start):
# This is kind of sucky - the access that is in a space separated
@@ -241,10 +240,12 @@ class AVCMessage(AuditMessage):
tcontext = self.tcontext.to_string()
scontext = self.scontext.to_string()
access_tuple = tuple( self.accesses)
+ self.data = []
+
if (scontext, tcontext, self.tclass, access_tuple) in avcdict.keys():
- self.type, self.bools = avcdict[(scontext, tcontext, self.tclass, access_tuple)]
+ self.type, self.data = avcdict[(scontext, tcontext, self.tclass, access_tuple)]
else:
- self.type, self.bools = audit2why.analyze(scontext, tcontext, self.tclass, self.accesses);
+ self.type, self.data = audit2why.analyze(scontext, tcontext, self.tclass, self.accesses);
if self.type == audit2why.NOPOLICY:
self.type = audit2why.TERULE
if self.type == audit2why.BADTCON:
@@ -258,7 +259,16 @@ class AVCMessage(AuditMessage):
if self.type == audit2why.BADCOMPUTE:
raise ValueError("Error during access vector computation")
- avcdict[(scontext, tcontext, self.tclass, access_tuple)] = (self.type, self.bools)
+ if self.type == audit2why.CONSTRAINT:
+ self.data = []
+ if self.scontext.user != self.tcontext.user:
+ self.data.append("user")
+ if self.scontext.role != self.tcontext.role and self.tcontext.role != "object_r":
+ self.data.append("role")
+ if self.scontext.level != self.tcontext.level:
+ self.data.append("level")
+
+ avcdict[(scontext, tcontext, self.tclass, access_tuple)] = (self.type, self.data)
class PolicyLoadMessage(AuditMessage):
"""Audit message indicating that the policy was reloaded."""
@@ -507,10 +517,10 @@ class AuditParser:
if avc_filter:
if avc_filter.filter(avc):
av_set.add(avc.scontext.type, avc.tcontext.type, avc.tclass,
- avc.accesses, avc, avc_type=avc.type, bools=avc.bools)
+ avc.accesses, avc, avc_type=avc.type, data=avc.data)
else:
av_set.add(avc.scontext.type, avc.tcontext.type, avc.tclass,
- avc.accesses, avc, avc_type=avc.type, bools=avc.bools)
+ avc.accesses, avc, avc_type=avc.type, data=avc.data)
return av_set
class AVCTypeFilter:
diff --git a/sepolgen/src/sepolgen/matching.py b/sepolgen/src/sepolgen/matching.py
index 1a9a3e5..d56dd92 100644
--- a/sepolgen/src/sepolgen/matching.py
@ -30,3 +119,49 @@ index 1a9a3e5..d56dd92 100644
def __iter__(self):
return iter(self.children)
diff --git a/sepolgen/src/sepolgen/policygen.py b/sepolgen/src/sepolgen/policygen.py
index c3d665c..cc9f8ea 100644
--- a/sepolgen/src/sepolgen/policygen.py
+++ b/sepolgen/src/sepolgen/policygen.py
@@ -166,14 +166,16 @@ class PolicyGenerator:
rule.comment += "#!!!! This avc has a dontaudit rule in the current policy\n"
if av.type == audit2why.BOOLEAN:
- if len(av.bools) > 1:
- rule.comment += "#!!!! This avc can be allowed using one of the these booleans:\n# %s\n" % ", ".join(map(lambda x: x[0], av.bools))
+ if len(av.data) > 1:
+ rule.comment += "#!!!! This avc can be allowed using one of the these booleans:\n# %s\n" % ", ".join(map(lambda x: x[0], av.data))
else:
- rule.comment += "#!!!! This avc can be allowed using the boolean '%s'\n" % av.bools[0][0]
+ rule.comment += "#!!!! This avc can be allowed using the boolean '%s'\n" % av.data[0][0]
if av.type == audit2why.CONSTRAINT:
rule.comment += "#!!!! This avc is a constraint violation. You will need to add an attribute to either the source or target type to make it work.\n"
rule.comment += "#Constraint rule: "
+ for reason in av.data:
+ rule.comment += "\n#\tPossible cause source context and target context '%s' differ\b" % reason
try:
if ( av.type == audit2why.TERULE and
diff --git a/sepolgen/src/sepolgen/refpolicy.py b/sepolgen/src/sepolgen/refpolicy.py
index b138e3d..7ce8f9d 100644
--- a/sepolgen/src/sepolgen/refpolicy.py
+++ b/sepolgen/src/sepolgen/refpolicy.py
@@ -799,7 +799,7 @@ class Require(Leaf):
self.types = IdSet()
self.obj_classes = { }
self.roles = IdSet()
- self.bools = IdSet()
+ self.data = IdSet()
self.users = IdSet()
def add_obj_class(self, obj_class, perms):
@@ -816,7 +816,7 @@ class Require(Leaf):
s.append("\tclass %s %s;" % (obj_class, perms.to_space_str()))
for role in self.roles:
s.append("\trole %s;" % role)
- for bool in self.bools:
+ for bool in self.data:
s.append("\tbool %s;" % bool)
for user in self.users:
s.append("\tuser %s;" % user)

2
policycoreutils.spec
View File

@ -7,7 +7,7 @@
Summary: SELinux policy core utilities
Name: policycoreutils
Version: 2.1.12
Release: 3%{?dist}
Release: 4%{?dist}
License: GPLv2
Group: System Environment/Base
# Based on git repository with tag 20101221