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-rw-r--r--security/apparmor/Kconfig4
-rw-r--r--security/apparmor/Makefile3
-rw-r--r--security/apparmor/include/policy_unpack.h50
-rw-r--r--security/apparmor/policy_unpack.c238
-rw-r--r--security/apparmor/policy_unpack_test.c69
5 files changed, 196 insertions, 168 deletions
diff --git a/security/apparmor/Kconfig b/security/apparmor/Kconfig
index cb3496e00d8a..f334e7cccf2d 100644
--- a/security/apparmor/Kconfig
+++ b/security/apparmor/Kconfig
@@ -106,8 +106,8 @@ config SECURITY_APPARMOR_PARANOID_LOAD
Disabling the check will speed up policy loads.
config SECURITY_APPARMOR_KUNIT_TEST
- bool "Build KUnit tests for policy_unpack.c" if !KUNIT_ALL_TESTS
- depends on KUNIT=y && SECURITY_APPARMOR
+ tristate "Build KUnit tests for policy_unpack.c" if !KUNIT_ALL_TESTS
+ depends on KUNIT && SECURITY_APPARMOR
default KUNIT_ALL_TESTS
help
This builds the AppArmor KUnit tests.
diff --git a/security/apparmor/Makefile b/security/apparmor/Makefile
index ff23fcfefe19..065f4e346553 100644
--- a/security/apparmor/Makefile
+++ b/security/apparmor/Makefile
@@ -8,6 +8,9 @@ apparmor-y := apparmorfs.o audit.o capability.o task.o ipc.o lib.o match.o \
resource.o secid.o file.o policy_ns.o label.o mount.o net.o
apparmor-$(CONFIG_SECURITY_APPARMOR_HASH) += crypto.o
+obj-$(CONFIG_SECURITY_APPARMOR_KUNIT_TEST) += apparmor_policy_unpack_test.o
+apparmor_policy_unpack_test-objs += policy_unpack_test.o
+
clean-files := capability_names.h rlim_names.h net_names.h
# Build a lower case string table of address family names
diff --git a/security/apparmor/include/policy_unpack.h b/security/apparmor/include/policy_unpack.h
index eb5f7d7f132b..e89b701447bc 100644
--- a/security/apparmor/include/policy_unpack.h
+++ b/security/apparmor/include/policy_unpack.h
@@ -49,6 +49,43 @@ enum {
};
/*
+ * The AppArmor interface treats data as a type byte followed by the
+ * actual data. The interface has the notion of a named entry
+ * which has a name (AA_NAME typecode followed by name string) followed by
+ * the entries typecode and data. Named types allow for optional
+ * elements and extensions to be added and tested for without breaking
+ * backwards compatibility.
+ */
+
+enum aa_code {
+ AA_U8,
+ AA_U16,
+ AA_U32,
+ AA_U64,
+ AA_NAME, /* same as string except it is items name */
+ AA_STRING,
+ AA_BLOB,
+ AA_STRUCT,
+ AA_STRUCTEND,
+ AA_LIST,
+ AA_LISTEND,
+ AA_ARRAY,
+ AA_ARRAYEND,
+};
+
+/*
+ * aa_ext is the read of the buffer containing the serialized profile. The
+ * data is copied into a kernel buffer in apparmorfs and then handed off to
+ * the unpack routines.
+ */
+struct aa_ext {
+ void *start;
+ void *end;
+ void *pos; /* pointer to current position in the buffer */
+ u32 version;
+};
+
+/*
* struct aa_loaddata - buffer of policy raw_data set
*
* there is no loaddata ref for being on ns list, nor a ref from
@@ -126,4 +163,17 @@ static inline void aa_put_loaddata(struct aa_loaddata *data)
kref_put(&data->count, aa_loaddata_kref);
}
+#if IS_ENABLED(CONFIG_KUNIT)
+bool aa_inbounds(struct aa_ext *e, size_t size);
+size_t aa_unpack_u16_chunk(struct aa_ext *e, char **chunk);
+bool aa_unpack_X(struct aa_ext *e, enum aa_code code);
+bool aa_unpack_nameX(struct aa_ext *e, enum aa_code code, const char *name);
+bool aa_unpack_u32(struct aa_ext *e, u32 *data, const char *name);
+bool aa_unpack_u64(struct aa_ext *e, u64 *data, const char *name);
+size_t aa_unpack_array(struct aa_ext *e, const char *name);
+size_t aa_unpack_blob(struct aa_ext *e, char **blob, const char *name);
+int aa_unpack_str(struct aa_ext *e, const char **string, const char *name);
+int aa_unpack_strdup(struct aa_ext *e, char **string, const char *name);
+#endif
+
#endif /* __POLICY_INTERFACE_H */
diff --git a/security/apparmor/policy_unpack.c b/security/apparmor/policy_unpack.c
index 55d31bac4f35..12e535fdfa8b 100644
--- a/security/apparmor/policy_unpack.c
+++ b/security/apparmor/policy_unpack.c
@@ -14,6 +14,7 @@
*/
#include <asm/unaligned.h>
+#include <kunit/visibility.h>
#include <linux/ctype.h>
#include <linux/errno.h>
#include <linux/zlib.h>
@@ -37,43 +38,6 @@
#define v7 7
#define v8 8 /* full network masking */
-/*
- * The AppArmor interface treats data as a type byte followed by the
- * actual data. The interface has the notion of a named entry
- * which has a name (AA_NAME typecode followed by name string) followed by
- * the entries typecode and data. Named types allow for optional
- * elements and extensions to be added and tested for without breaking
- * backwards compatibility.
- */
-
-enum aa_code {
- AA_U8,
- AA_U16,
- AA_U32,
- AA_U64,
- AA_NAME, /* same as string except it is items name */
- AA_STRING,
- AA_BLOB,
- AA_STRUCT,
- AA_STRUCTEND,
- AA_LIST,
- AA_LISTEND,
- AA_ARRAY,
- AA_ARRAYEND,
-};
-
-/*
- * aa_ext is the read of the buffer containing the serialized profile. The
- * data is copied into a kernel buffer in apparmorfs and then handed off to
- * the unpack routines.
- */
-struct aa_ext {
- void *start;
- void *end;
- void *pos; /* pointer to current position in the buffer */
- u32 version;
-};
-
/* audit callback for unpack fields */
static void audit_cb(struct audit_buffer *ab, void *va)
{
@@ -199,10 +163,11 @@ struct aa_loaddata *aa_loaddata_alloc(size_t size)
}
/* test if read will be in packed data bounds */
-static bool inbounds(struct aa_ext *e, size_t size)
+VISIBLE_IF_KUNIT bool aa_inbounds(struct aa_ext *e, size_t size)
{
return (size <= e->end - e->pos);
}
+EXPORT_SYMBOL_IF_KUNIT(aa_inbounds);
static void *kvmemdup(const void *src, size_t len)
{
@@ -214,22 +179,22 @@ static void *kvmemdup(const void *src, size_t len)
}
/**
- * unpack_u16_chunk - test and do bounds checking for a u16 size based chunk
+ * aa_unpack_u16_chunk - test and do bounds checking for a u16 size based chunk
* @e: serialized data read head (NOT NULL)
* @chunk: start address for chunk of data (NOT NULL)
*
* Returns: the size of chunk found with the read head at the end of the chunk.
*/
-static size_t unpack_u16_chunk(struct aa_ext *e, char **chunk)
+VISIBLE_IF_KUNIT size_t aa_unpack_u16_chunk(struct aa_ext *e, char **chunk)
{
size_t size = 0;
void *pos = e->pos;
- if (!inbounds(e, sizeof(u16)))
+ if (!aa_inbounds(e, sizeof(u16)))
goto fail;
size = le16_to_cpu(get_unaligned((__le16 *) e->pos));
e->pos += sizeof(__le16);
- if (!inbounds(e, size))
+ if (!aa_inbounds(e, size))
goto fail;
*chunk = e->pos;
e->pos += size;
@@ -239,20 +204,22 @@ fail:
e->pos = pos;
return 0;
}
+EXPORT_SYMBOL_IF_KUNIT(aa_unpack_u16_chunk);
/* unpack control byte */
-static bool unpack_X(struct aa_ext *e, enum aa_code code)
+VISIBLE_IF_KUNIT bool aa_unpack_X(struct aa_ext *e, enum aa_code code)
{
- if (!inbounds(e, 1))
+ if (!aa_inbounds(e, 1))
return false;
if (*(u8 *) e->pos != code)
return false;
e->pos++;
return true;
}
+EXPORT_SYMBOL_IF_KUNIT(aa_unpack_X);
/**
- * unpack_nameX - check is the next element is of type X with a name of @name
+ * aa_unpack_nameX - check is the next element is of type X with a name of @name
* @e: serialized data extent information (NOT NULL)
* @code: type code
* @name: name to match to the serialized element. (MAYBE NULL)
@@ -267,7 +234,7 @@ static bool unpack_X(struct aa_ext *e, enum aa_code code)
*
* Returns: false if either match fails, the read head does not move
*/
-static bool unpack_nameX(struct aa_ext *e, enum aa_code code, const char *name)
+VISIBLE_IF_KUNIT bool aa_unpack_nameX(struct aa_ext *e, enum aa_code code, const char *name)
{
/*
* May need to reset pos if name or type doesn't match
@@ -277,9 +244,9 @@ static bool unpack_nameX(struct aa_ext *e, enum aa_code code, const char *name)
* Check for presence of a tagname, and if present name size
* AA_NAME tag value is a u16.
*/
- if (unpack_X(e, AA_NAME)) {
+ if (aa_unpack_X(e, AA_NAME)) {
char *tag = NULL;
- size_t size = unpack_u16_chunk(e, &tag);
+ size_t size = aa_unpack_u16_chunk(e, &tag);
/* if a name is specified it must match. otherwise skip tag */
if (name && (!size || tag[size-1] != '\0' || strcmp(name, tag)))
goto fail;
@@ -289,20 +256,21 @@ static bool unpack_nameX(struct aa_ext *e, enum aa_code code, const char *name)
}
/* now check if type code matches */
- if (unpack_X(e, code))
+ if (aa_unpack_X(e, code))
return true;
fail:
e->pos = pos;
return false;
}
+EXPORT_SYMBOL_IF_KUNIT(aa_unpack_nameX);
static bool unpack_u8(struct aa_ext *e, u8 *data, const char *name)
{
void *pos = e->pos;
- if (unpack_nameX(e, AA_U8, name)) {
- if (!inbounds(e, sizeof(u8)))
+ if (aa_unpack_nameX(e, AA_U8, name)) {
+ if (!aa_inbounds(e, sizeof(u8)))
goto fail;
if (data)
*data = *((u8 *)e->pos);
@@ -315,12 +283,12 @@ fail:
return false;
}
-static bool unpack_u32(struct aa_ext *e, u32 *data, const char *name)
+VISIBLE_IF_KUNIT bool aa_unpack_u32(struct aa_ext *e, u32 *data, const char *name)
{
void *pos = e->pos;
- if (unpack_nameX(e, AA_U32, name)) {
- if (!inbounds(e, sizeof(u32)))
+ if (aa_unpack_nameX(e, AA_U32, name)) {
+ if (!aa_inbounds(e, sizeof(u32)))
goto fail;
if (data)
*data = le32_to_cpu(get_unaligned((__le32 *) e->pos));
@@ -332,13 +300,14 @@ fail:
e->pos = pos;
return false;
}
+EXPORT_SYMBOL_IF_KUNIT(aa_unpack_u32);
-static bool unpack_u64(struct aa_ext *e, u64 *data, const char *name)
+VISIBLE_IF_KUNIT bool aa_unpack_u64(struct aa_ext *e, u64 *data, const char *name)
{
void *pos = e->pos;
- if (unpack_nameX(e, AA_U64, name)) {
- if (!inbounds(e, sizeof(u64)))
+ if (aa_unpack_nameX(e, AA_U64, name)) {
+ if (!aa_inbounds(e, sizeof(u64)))
goto fail;
if (data)
*data = le64_to_cpu(get_unaligned((__le64 *) e->pos));
@@ -350,14 +319,15 @@ fail:
e->pos = pos;
return false;
}
+EXPORT_SYMBOL_IF_KUNIT(aa_unpack_u64);
-static size_t unpack_array(struct aa_ext *e, const char *name)
+VISIBLE_IF_KUNIT size_t aa_unpack_array(struct aa_ext *e, const char *name)
{
void *pos = e->pos;
- if (unpack_nameX(e, AA_ARRAY, name)) {
+ if (aa_unpack_nameX(e, AA_ARRAY, name)) {
int size;
- if (!inbounds(e, sizeof(u16)))
+ if (!aa_inbounds(e, sizeof(u16)))
goto fail;
size = (int)le16_to_cpu(get_unaligned((__le16 *) e->pos));
e->pos += sizeof(u16);
@@ -368,18 +338,19 @@ fail:
e->pos = pos;
return 0;
}
+EXPORT_SYMBOL_IF_KUNIT(aa_unpack_array);
-static size_t unpack_blob(struct aa_ext *e, char **blob, const char *name)
+VISIBLE_IF_KUNIT size_t aa_unpack_blob(struct aa_ext *e, char **blob, const char *name)
{
void *pos = e->pos;
- if (unpack_nameX(e, AA_BLOB, name)) {
+ if (aa_unpack_nameX(e, AA_BLOB, name)) {
u32 size;
- if (!inbounds(e, sizeof(u32)))
+ if (!aa_inbounds(e, sizeof(u32)))
goto fail;
size = le32_to_cpu(get_unaligned((__le32 *) e->pos));
e->pos += sizeof(u32);
- if (inbounds(e, (size_t) size)) {
+ if (aa_inbounds(e, (size_t) size)) {
*blob = e->pos;
e->pos += size;
return size;
@@ -390,15 +361,16 @@ fail:
e->pos = pos;
return 0;
}
+EXPORT_SYMBOL_IF_KUNIT(aa_unpack_blob);
-static int unpack_str(struct aa_ext *e, const char **string, const char *name)
+VISIBLE_IF_KUNIT int aa_unpack_str(struct aa_ext *e, const char **string, const char *name)
{
char *src_str;
size_t size = 0;
void *pos = e->pos;
*string = NULL;
- if (unpack_nameX(e, AA_STRING, name)) {
- size = unpack_u16_chunk(e, &src_str);
+ if (aa_unpack_nameX(e, AA_STRING, name)) {
+ size = aa_unpack_u16_chunk(e, &src_str);
if (size) {
/* strings are null terminated, length is size - 1 */
if (src_str[size - 1] != 0)
@@ -413,12 +385,13 @@ fail:
e->pos = pos;
return 0;
}
+EXPORT_SYMBOL_IF_KUNIT(aa_unpack_str);
-static int unpack_strdup(struct aa_ext *e, char **string, const char *name)
+VISIBLE_IF_KUNIT int aa_unpack_strdup(struct aa_ext *e, char **string, const char *name)
{
const char *tmp;
void *pos = e->pos;
- int res = unpack_str(e, &tmp, name);
+ int res = aa_unpack_str(e, &tmp, name);
*string = NULL;
if (!res)
@@ -432,6 +405,7 @@ static int unpack_strdup(struct aa_ext *e, char **string, const char *name)
return res;
}
+EXPORT_SYMBOL_IF_KUNIT(aa_unpack_strdup);
/**
@@ -446,7 +420,7 @@ static struct aa_dfa *unpack_dfa(struct aa_ext *e)
size_t size;
struct aa_dfa *dfa = NULL;
- size = unpack_blob(e, &blob, "aadfa");
+ size = aa_unpack_blob(e, &blob, "aadfa");
if (size) {
/*
* The dfa is aligned with in the blob to 8 bytes
@@ -482,10 +456,10 @@ static bool unpack_trans_table(struct aa_ext *e, struct aa_profile *profile)
void *saved_pos = e->pos;
/* exec table is optional */
- if (unpack_nameX(e, AA_STRUCT, "xtable")) {
+ if (aa_unpack_nameX(e, AA_STRUCT, "xtable")) {
int i, size;
- size = unpack_array(e, NULL);
+ size = aa_unpack_array(e, NULL);
/* currently 4 exec bits and entries 0-3 are reserved iupcx */
if (size > 16 - 4)
goto fail;
@@ -497,8 +471,8 @@ static bool unpack_trans_table(struct aa_ext *e, struct aa_profile *profile)
profile->file.trans.size = size;
for (i = 0; i < size; i++) {
char *str;
- int c, j, pos, size2 = unpack_strdup(e, &str, NULL);
- /* unpack_strdup verifies that the last character is
+ int c, j, pos, size2 = aa_unpack_strdup(e, &str, NULL);
+ /* aa_unpack_strdup verifies that the last character is
* null termination byte.
*/
if (!size2)
@@ -521,7 +495,7 @@ static bool unpack_trans_table(struct aa_ext *e, struct aa_profile *profile)
goto fail;
/* beginning with : requires an embedded \0,
* verify that exactly 1 internal \0 exists
- * trailing \0 already verified by unpack_strdup
+ * trailing \0 already verified by aa_unpack_strdup
*
* convert \0 back to : for label_parse
*/
@@ -533,9 +507,9 @@ static bool unpack_trans_table(struct aa_ext *e, struct aa_profile *profile)
/* fail - all other cases with embedded \0 */
goto fail;
}
- if (!unpack_nameX(e, AA_ARRAYEND, NULL))
+ if (!aa_unpack_nameX(e, AA_ARRAYEND, NULL))
goto fail;
- if (!unpack_nameX(e, AA_STRUCTEND, NULL))
+ if (!aa_unpack_nameX(e, AA_STRUCTEND, NULL))
goto fail;
}
return true;
@@ -550,21 +524,21 @@ static bool unpack_xattrs(struct aa_ext *e, struct aa_profile *profile)
{
void *pos = e->pos;
- if (unpack_nameX(e, AA_STRUCT, "xattrs")) {
+ if (aa_unpack_nameX(e, AA_STRUCT, "xattrs")) {
int i, size;
- size = unpack_array(e, NULL);
+ size = aa_unpack_array(e, NULL);
profile->xattr_count = size;
profile->xattrs = kcalloc(size, sizeof(char *), GFP_KERNEL);
if (!profile->xattrs)
goto fail;
for (i = 0; i < size; i++) {
- if (!unpack_strdup(e, &profile->xattrs[i], NULL))
+ if (!aa_unpack_strdup(e, &profile->xattrs[i], NULL))
goto fail;
}
- if (!unpack_nameX(e, AA_ARRAYEND, NULL))
+ if (!aa_unpack_nameX(e, AA_ARRAYEND, NULL))
goto fail;
- if (!unpack_nameX(e, AA_STRUCTEND, NULL))
+ if (!aa_unpack_nameX(e, AA_STRUCTEND, NULL))
goto fail;
}
@@ -580,8 +554,8 @@ static bool unpack_secmark(struct aa_ext *e, struct aa_profile *profile)
void *pos = e->pos;
int i, size;
- if (unpack_nameX(e, AA_STRUCT, "secmark")) {
- size = unpack_array(e, NULL);
+ if (aa_unpack_nameX(e, AA_STRUCT, "secmark")) {
+ size = aa_unpack_array(e, NULL);
profile->secmark = kcalloc(size, sizeof(struct aa_secmark),
GFP_KERNEL);
@@ -595,12 +569,12 @@ static bool unpack_secmark(struct aa_ext *e, struct aa_profile *profile)
goto fail;
if (!unpack_u8(e, &profile->secmark[i].deny, NULL))
goto fail;
- if (!unpack_strdup(e, &profile->secmark[i].label, NULL))
+ if (!aa_unpack_strdup(e, &profile->secmark[i].label, NULL))
goto fail;
}
- if (!unpack_nameX(e, AA_ARRAYEND, NULL))
+ if (!aa_unpack_nameX(e, AA_ARRAYEND, NULL))
goto fail;
- if (!unpack_nameX(e, AA_STRUCTEND, NULL))
+ if (!aa_unpack_nameX(e, AA_STRUCTEND, NULL))
goto fail;
}
@@ -624,26 +598,26 @@ static bool unpack_rlimits(struct aa_ext *e, struct aa_profile *profile)
void *pos = e->pos;
/* rlimits are optional */
- if (unpack_nameX(e, AA_STRUCT, "rlimits")) {
+ if (aa_unpack_nameX(e, AA_STRUCT, "rlimits")) {
int i, size;
u32 tmp = 0;
- if (!unpack_u32(e, &tmp, NULL))
+ if (!aa_unpack_u32(e, &tmp, NULL))
goto fail;
profile->rlimits.mask = tmp;
- size = unpack_array(e, NULL);
+ size = aa_unpack_array(e, NULL);
if (size > RLIM_NLIMITS)
goto fail;
for (i = 0; i < size; i++) {
u64 tmp2 = 0;
int a = aa_map_resource(i);
- if (!unpack_u64(e, &tmp2, NULL))
+ if (!aa_unpack_u64(e, &tmp2, NULL))
goto fail;
profile->rlimits.limits[a].rlim_max = tmp2;
}
- if (!unpack_nameX(e, AA_ARRAYEND, NULL))
+ if (!aa_unpack_nameX(e, AA_ARRAYEND, NULL))
goto fail;
- if (!unpack_nameX(e, AA_STRUCTEND, NULL))
+ if (!aa_unpack_nameX(e, AA_STRUCTEND, NULL))
goto fail;
}
return true;
@@ -691,9 +665,9 @@ static struct aa_profile *unpack_profile(struct aa_ext *e, char **ns_name)
*ns_name = NULL;
/* check that we have the right struct being passed */
- if (!unpack_nameX(e, AA_STRUCT, "profile"))
+ if (!aa_unpack_nameX(e, AA_STRUCT, "profile"))
goto fail;
- if (!unpack_str(e, &name, NULL))
+ if (!aa_unpack_str(e, &name, NULL))
goto fail;
if (*name == '\0')
goto fail;
@@ -713,10 +687,10 @@ static struct aa_profile *unpack_profile(struct aa_ext *e, char **ns_name)
return ERR_PTR(-ENOMEM);
/* profile renaming is optional */
- (void) unpack_str(e, &profile->rename, "rename");
+ (void) aa_unpack_str(e, &profile->rename, "rename");
/* attachment string is optional */
- (void) unpack_str(e, &profile->attach, "attach");
+ (void) aa_unpack_str(e, &profile->attach, "attach");
/* xmatch is optional and may be NULL */
profile->xmatch = unpack_dfa(e);
@@ -728,7 +702,7 @@ static struct aa_profile *unpack_profile(struct aa_ext *e, char **ns_name)
}
/* xmatch_len is not optional if xmatch is set */
if (profile->xmatch) {
- if (!unpack_u32(e, &tmp, NULL)) {
+ if (!aa_unpack_u32(e, &tmp, NULL)) {
info = "missing xmatch len";
goto fail;
}
@@ -736,15 +710,15 @@ static struct aa_profile *unpack_profile(struct aa_ext *e, char **ns_name)
}
/* disconnected attachment string is optional */
- (void) unpack_str(e, &profile->disconnected, "disconnected");
+ (void) aa_unpack_str(e, &profile->disconnected, "disconnected");
/* per profile debug flags (complain, audit) */
- if (!unpack_nameX(e, AA_STRUCT, "flags")) {
+ if (!aa_unpack_nameX(e, AA_STRUCT, "flags")) {
info = "profile missing flags";
goto fail;
}
info = "failed to unpack profile flags";
- if (!unpack_u32(e, &tmp, NULL))
+ if (!aa_unpack_u32(e, &tmp, NULL))
goto fail;
if (tmp & PACKED_FLAG_HAT)
profile->label.flags |= FLAG_HAT;
@@ -752,7 +726,7 @@ static struct aa_profile *unpack_profile(struct aa_ext *e, char **ns_name)
profile->label.flags |= FLAG_DEBUG1;
if (tmp & PACKED_FLAG_DEBUG2)
profile->label.flags |= FLAG_DEBUG2;
- if (!unpack_u32(e, &tmp, NULL))
+ if (!aa_unpack_u32(e, &tmp, NULL))
goto fail;
if (tmp == PACKED_MODE_COMPLAIN || (e->version & FORCE_COMPLAIN_FLAG)) {
profile->mode = APPARMOR_COMPLAIN;
@@ -766,16 +740,16 @@ static struct aa_profile *unpack_profile(struct aa_ext *e, char **ns_name)
} else {
goto fail;
}
- if (!unpack_u32(e, &tmp, NULL))
+ if (!aa_unpack_u32(e, &tmp, NULL))
goto fail;
if (tmp)
profile->audit = AUDIT_ALL;
- if (!unpack_nameX(e, AA_STRUCTEND, NULL))
+ if (!aa_unpack_nameX(e, AA_STRUCTEND, NULL))
goto fail;
/* path_flags is optional */
- if (unpack_u32(e, &profile->path_flags, "path_flags"))
+ if (aa_unpack_u32(e, &profile->path_flags, "path_flags"))
profile->path_flags |= profile->label.flags &
PATH_MEDIATE_DELETED;
else
@@ -783,38 +757,38 @@ static struct aa_profile *unpack_profile(struct aa_ext *e, char **ns_name)
profile->path_flags = PATH_MEDIATE_DELETED;
info = "failed to unpack profile capabilities";
- if (!unpack_u32(e, &(profile->caps.allow.cap[0]), NULL))
+ if (!aa_unpack_u32(e, &(profile->caps.allow.cap[0]), NULL))
goto fail;
- if (!unpack_u32(e, &(profile->caps.audit.cap[0]), NULL))
+ if (!aa_unpack_u32(e, &(profile->caps.audit.cap[0]), NULL))
goto fail;
- if (!unpack_u32(e, &(profile->caps.quiet.cap[0]), NULL))
+ if (!aa_unpack_u32(e, &(profile->caps.quiet.cap[0]), NULL))
goto fail;
- if (!unpack_u32(e, &tmpcap.cap[0], NULL))
+ if (!aa_unpack_u32(e, &tmpcap.cap[0], NULL))
goto fail;
info = "failed to unpack upper profile capabilities";
- if (unpack_nameX(e, AA_STRUCT, "caps64")) {
+ if (aa_unpack_nameX(e, AA_STRUCT, "caps64")) {
/* optional upper half of 64 bit caps */
- if (!unpack_u32(e, &(profile->caps.allow.cap[1]), NULL))
+ if (!aa_unpack_u32(e, &(profile->caps.allow.cap[1]), NULL))
goto fail;
- if (!unpack_u32(e, &(profile->caps.audit.cap[1]), NULL))
+ if (!aa_unpack_u32(e, &(profile->caps.audit.cap[1]), NULL))
goto fail;
- if (!unpack_u32(e, &(profile->caps.quiet.cap[1]), NULL))
+ if (!aa_unpack_u32(e, &(profile->caps.quiet.cap[1]), NULL))
goto fail;
- if (!unpack_u32(e, &(tmpcap.cap[1]), NULL))
+ if (!aa_unpack_u32(e, &(tmpcap.cap[1]), NULL))
goto fail;
- if (!unpack_nameX(e, AA_STRUCTEND, NULL))
+ if (!aa_unpack_nameX(e, AA_STRUCTEND, NULL))
goto fail;
}
info = "failed to unpack extended profile capabilities";
- if (unpack_nameX(e, AA_STRUCT, "capsx")) {
+ if (aa_unpack_nameX(e, AA_STRUCT, "capsx")) {
/* optional extended caps mediation mask */
- if (!unpack_u32(e, &(profile->caps.extended.cap[0]), NULL))
+ if (!aa_unpack_u32(e, &(profile->caps.extended.cap[0]), NULL))
goto fail;
- if (!unpack_u32(e, &(profile->caps.extended.cap[1]), NULL))
+ if (!aa_unpack_u32(e, &(profile->caps.extended.cap[1]), NULL))
goto fail;
- if (!unpack_nameX(e, AA_STRUCTEND, NULL))
+ if (!aa_unpack_nameX(e, AA_STRUCTEND, NULL))
goto fail;
}
@@ -833,7 +807,7 @@ static struct aa_profile *unpack_profile(struct aa_ext *e, char **ns_name)
goto fail;
}
- if (unpack_nameX(e, AA_STRUCT, "policydb")) {
+ if (aa_unpack_nameX(e, AA_STRUCT, "policydb")) {
/* generic policy dfa - optional and may be NULL */
info = "failed to unpack policydb";
profile->policy.dfa = unpack_dfa(e);
@@ -845,7 +819,7 @@ static struct aa_profile *unpack_profile(struct aa_ext *e, char **ns_name)
error = -EPROTO;
goto fail;
}
- if (!unpack_u32(e, &profile->policy.start[0], "start"))
+ if (!aa_unpack_u32(e, &profile->policy.start[0], "start"))
/* default start state */
profile->policy.start[0] = DFA_START;
/* setup class index */
@@ -855,7 +829,7 @@ static struct aa_profile *unpack_profile(struct aa_ext *e, char **ns_name)
profile->policy.start[0],
i);
}
- if (!unpack_nameX(e, AA_STRUCTEND, NULL))
+ if (!aa_unpack_nameX(e, AA_STRUCTEND, NULL))
goto fail;
} else
profile->policy.dfa = aa_get_dfa(nulldfa);
@@ -868,7 +842,7 @@ static struct aa_profile *unpack_profile(struct aa_ext *e, char **ns_name)
info = "failed to unpack profile file rules";
goto fail;
} else if (profile->file.dfa) {
- if (!unpack_u32(e, &profile->file.start, "dfa_start"))
+ if (!aa_unpack_u32(e, &profile->file.start, "dfa_start"))
/* default start state */
profile->file.start = DFA_START;
} else if (profile->policy.dfa &&
@@ -883,7 +857,7 @@ static struct aa_profile *unpack_profile(struct aa_ext *e, char **ns_name)
goto fail;
}
- if (unpack_nameX(e, AA_STRUCT, "data")) {
+ if (aa_unpack_nameX(e, AA_STRUCT, "data")) {
info = "out of memory";
profile->data = kzalloc(sizeof(*profile->data), GFP_KERNEL);
if (!profile->data)
@@ -901,7 +875,7 @@ static struct aa_profile *unpack_profile(struct aa_ext *e, char **ns_name)
goto fail;
}
- while (unpack_strdup(e, &key, NULL)) {
+ while (aa_unpack_strdup(e, &key, NULL)) {
data = kzalloc(sizeof(*data), GFP_KERNEL);
if (!data) {
kfree_sensitive(key);
@@ -909,7 +883,7 @@ static struct aa_profile *unpack_profile(struct aa_ext *e, char **ns_name)
}
data->key = key;
- data->size = unpack_blob(e, &data->data, NULL);
+ data->size = aa_unpack_blob(e, &data->data, NULL);
data->data = kvmemdup(data->data, data->size);
if (data->size && !data->data) {
kfree_sensitive(data->key);
@@ -921,13 +895,13 @@ static struct aa_profile *unpack_profile(struct aa_ext *e, char **ns_name)
profile->data->p);
}
- if (!unpack_nameX(e, AA_STRUCTEND, NULL)) {
+ if (!aa_unpack_nameX(e, AA_STRUCTEND, NULL)) {
info = "failed to unpack end of key, value data table";
goto fail;
}
}
- if (!unpack_nameX(e, AA_STRUCTEND, NULL)) {
+ if (!aa_unpack_nameX(e, AA_STRUCTEND, NULL)) {
info = "failed to unpack end of profile";
goto fail;
}
@@ -960,7 +934,7 @@ static int verify_header(struct aa_ext *e, int required, const char **ns)
*ns = NULL;
/* get the interface version */
- if (!unpack_u32(e, &e->version, "version")) {
+ if (!aa_unpack_u32(e, &e->version, "version")) {
if (required) {
audit_iface(NULL, NULL, NULL, "invalid profile format",
e, error);
@@ -979,7 +953,7 @@ static int verify_header(struct aa_ext *e, int required, const char **ns)
}
/* read the namespace if present */
- if (unpack_str(e, &name, "namespace")) {
+ if (aa_unpack_str(e, &name, "namespace")) {
if (*name == '\0') {
audit_iface(NULL, NULL, NULL, "invalid namespace name",
e, error);
@@ -1251,7 +1225,3 @@ fail:
return error;
}
-
-#ifdef CONFIG_SECURITY_APPARMOR_KUNIT_TEST
-#include "policy_unpack_test.c"
-#endif /* CONFIG_SECURITY_APPARMOR_KUNIT_TEST */
diff --git a/security/apparmor/policy_unpack_test.c b/security/apparmor/policy_unpack_test.c
index 0a969b2e03db..f25cf2a023d5 100644
--- a/security/apparmor/policy_unpack_test.c
+++ b/security/apparmor/policy_unpack_test.c
@@ -4,6 +4,7 @@
*/
#include <kunit/test.h>
+#include <kunit/visibility.h>
#include "include/policy.h"
#include "include/policy_unpack.h"
@@ -43,6 +44,8 @@
#define TEST_ARRAY_BUF_OFFSET \
(TEST_NAMED_ARRAY_BUF_OFFSET + 3 + strlen(TEST_ARRAY_NAME) + 1)
+MODULE_IMPORT_NS(EXPORTED_FOR_KUNIT_TESTING);
+
struct policy_unpack_fixture {
struct aa_ext *e;
size_t e_size;
@@ -125,16 +128,16 @@ static void policy_unpack_test_inbounds_when_inbounds(struct kunit *test)
{
struct policy_unpack_fixture *puf = test->priv;
- KUNIT_EXPECT_TRUE(test, inbounds(puf->e, 0));
- KUNIT_EXPECT_TRUE(test, inbounds(puf->e, puf->e_size / 2));
- KUNIT_EXPECT_TRUE(test, inbounds(puf->e, puf->e_size));
+ KUNIT_EXPECT_TRUE(test, aa_inbounds(puf->e, 0));
+ KUNIT_EXPECT_TRUE(test, aa_inbounds(puf->e, puf->e_size / 2));
+ KUNIT_EXPECT_TRUE(test, aa_inbounds(puf->e, puf->e_size));
}
static void policy_unpack_test_inbounds_when_out_of_bounds(struct kunit *test)
{
struct policy_unpack_fixture *puf = test->priv;
- KUNIT_EXPECT_FALSE(test, inbounds(puf->e, puf->e_size + 1));
+ KUNIT_EXPECT_FALSE(test, aa_inbounds(puf->e, puf->e_size + 1));
}
static void policy_unpack_test_unpack_array_with_null_name(struct kunit *test)
@@ -144,7 +147,7 @@ static void policy_unpack_test_unpack_array_with_null_name(struct kunit *test)
puf->e->pos += TEST_ARRAY_BUF_OFFSET;
- array_size = unpack_array(puf->e, NULL);
+ array_size = aa_unpack_array(puf->e, NULL);
KUNIT_EXPECT_EQ(test, array_size, (u16)TEST_ARRAY_SIZE);
KUNIT_EXPECT_PTR_EQ(test, puf->e->pos,
@@ -159,7 +162,7 @@ static void policy_unpack_test_unpack_array_with_name(struct kunit *test)
puf->e->pos += TEST_NAMED_ARRAY_BUF_OFFSET;
- array_size = unpack_array(puf->e, name);
+ array_size = aa_unpack_array(puf->e, name);
KUNIT_EXPECT_EQ(test, array_size, (u16)TEST_ARRAY_SIZE);
KUNIT_EXPECT_PTR_EQ(test, puf->e->pos,
@@ -175,7 +178,7 @@ static void policy_unpack_test_unpack_array_out_of_bounds(struct kunit *test)
puf->e->pos += TEST_NAMED_ARRAY_BUF_OFFSET;
puf->e->end = puf->e->start + TEST_ARRAY_BUF_OFFSET + sizeof(u16);
- array_size = unpack_array(puf->e, name);
+ array_size = aa_unpack_array(puf->e, name);
KUNIT_EXPECT_EQ(test, array_size, 0);
KUNIT_EXPECT_PTR_EQ(test, puf->e->pos,
@@ -189,7 +192,7 @@ static void policy_unpack_test_unpack_blob_with_null_name(struct kunit *test)
size_t size;
puf->e->pos += TEST_BLOB_BUF_OFFSET;
- size = unpack_blob(puf->e, &blob, NULL);
+ size = aa_unpack_blob(puf->e, &blob, NULL);
KUNIT_ASSERT_EQ(test, size, TEST_BLOB_DATA_SIZE);
KUNIT_EXPECT_TRUE(test,
@@ -203,7 +206,7 @@ static void policy_unpack_test_unpack_blob_with_name(struct kunit *test)
size_t size;
puf->e->pos += TEST_NAMED_BLOB_BUF_OFFSET;
- size = unpack_blob(puf->e, &blob, TEST_BLOB_NAME);
+ size = aa_unpack_blob(puf->e, &blob, TEST_BLOB_NAME);
KUNIT_ASSERT_EQ(test, size, TEST_BLOB_DATA_SIZE);
KUNIT_EXPECT_TRUE(test,
@@ -222,7 +225,7 @@ static void policy_unpack_test_unpack_blob_out_of_bounds(struct kunit *test)
puf->e->end = puf->e->start + TEST_BLOB_BUF_OFFSET
+ TEST_BLOB_DATA_SIZE - 1;
- size = unpack_blob(puf->e, &blob, TEST_BLOB_NAME);
+ size = aa_unpack_blob(puf->e, &blob, TEST_BLOB_NAME);
KUNIT_EXPECT_EQ(test, size, 0);
KUNIT_EXPECT_PTR_EQ(test, puf->e->pos, start);
@@ -235,7 +238,7 @@ static void policy_unpack_test_unpack_str_with_null_name(struct kunit *test)
size_t size;
puf->e->pos += TEST_STRING_BUF_OFFSET;
- size = unpack_str(puf->e, &string, NULL);
+ size = aa_unpack_str(puf->e, &string, NULL);
KUNIT_EXPECT_EQ(test, size, strlen(TEST_STRING_DATA) + 1);
KUNIT_EXPECT_STREQ(test, string, TEST_STRING_DATA);
@@ -247,7 +250,7 @@ static void policy_unpack_test_unpack_str_with_name(struct kunit *test)
const char *string = NULL;
size_t size;
- size = unpack_str(puf->e, &string, TEST_STRING_NAME);
+ size = aa_unpack_str(puf->e, &string, TEST_STRING_NAME);
KUNIT_EXPECT_EQ(test, size, strlen(TEST_STRING_DATA) + 1);
KUNIT_EXPECT_STREQ(test, string, TEST_STRING_DATA);
@@ -263,7 +266,7 @@ static void policy_unpack_test_unpack_str_out_of_bounds(struct kunit *test)
puf->e->end = puf->e->pos + TEST_STRING_BUF_OFFSET
+ strlen(TEST_STRING_DATA) - 1;
- size = unpack_str(puf->e, &string, TEST_STRING_NAME);
+ size = aa_unpack_str(puf->e, &string, TEST_STRING_NAME);
KUNIT_EXPECT_EQ(test, size, 0);
KUNIT_EXPECT_PTR_EQ(test, puf->e->pos, start);
@@ -276,7 +279,7 @@ static void policy_unpack_test_unpack_strdup_with_null_name(struct kunit *test)
size_t size;
puf->e->pos += TEST_STRING_BUF_OFFSET;
- size = unpack_strdup(puf->e, &string, NULL);
+ size = aa_unpack_strdup(puf->e, &string, NULL);
KUNIT_EXPECT_EQ(test, size, strlen(TEST_STRING_DATA) + 1);
KUNIT_EXPECT_FALSE(test,
@@ -291,7 +294,7 @@ static void policy_unpack_test_unpack_strdup_with_name(struct kunit *test)
char *string = NULL;
size_t size;
- size = unpack_strdup(puf->e, &string, TEST_STRING_NAME);
+ size = aa_unpack_strdup(puf->e, &string, TEST_STRING_NAME);
KUNIT_EXPECT_EQ(test, size, strlen(TEST_STRING_DATA) + 1);
KUNIT_EXPECT_FALSE(test,
@@ -310,7 +313,7 @@ static void policy_unpack_test_unpack_strdup_out_of_bounds(struct kunit *test)
puf->e->end = puf->e->pos + TEST_STRING_BUF_OFFSET
+ strlen(TEST_STRING_DATA) - 1;
- size = unpack_strdup(puf->e, &string, TEST_STRING_NAME);
+ size = aa_unpack_strdup(puf->e, &string, TEST_STRING_NAME);
KUNIT_EXPECT_EQ(test, size, 0);
KUNIT_EXPECT_NULL(test, string);
@@ -324,7 +327,7 @@ static void policy_unpack_test_unpack_nameX_with_null_name(struct kunit *test)
puf->e->pos += TEST_U32_BUF_OFFSET;
- success = unpack_nameX(puf->e, AA_U32, NULL);
+ success = aa_unpack_nameX(puf->e, AA_U32, NULL);
KUNIT_EXPECT_TRUE(test, success);
KUNIT_EXPECT_PTR_EQ(test, puf->e->pos,
@@ -338,7 +341,7 @@ static void policy_unpack_test_unpack_nameX_with_wrong_code(struct kunit *test)
puf->e->pos += TEST_U32_BUF_OFFSET;
- success = unpack_nameX(puf->e, AA_BLOB, NULL);
+ success = aa_unpack_nameX(puf->e, AA_BLOB, NULL);
KUNIT_EXPECT_FALSE(test, success);
KUNIT_EXPECT_PTR_EQ(test, puf->e->pos,
@@ -353,7 +356,7 @@ static void policy_unpack_test_unpack_nameX_with_name(struct kunit *test)
puf->e->pos += TEST_NAMED_U32_BUF_OFFSET;
- success = unpack_nameX(puf->e, AA_U32, name);
+ success = aa_unpack_nameX(puf->e, AA_U32, name);
KUNIT_EXPECT_TRUE(test, success);
KUNIT_EXPECT_PTR_EQ(test, puf->e->pos,
@@ -368,7 +371,7 @@ static void policy_unpack_test_unpack_nameX_with_wrong_name(struct kunit *test)
puf->e->pos += TEST_NAMED_U32_BUF_OFFSET;
- success = unpack_nameX(puf->e, AA_U32, name);
+ success = aa_unpack_nameX(puf->e, AA_U32, name);
KUNIT_EXPECT_FALSE(test, success);
KUNIT_EXPECT_PTR_EQ(test, puf->e->pos,
@@ -389,7 +392,7 @@ static void policy_unpack_test_unpack_u16_chunk_basic(struct kunit *test)
*/
puf->e->end += TEST_U16_DATA;
- size = unpack_u16_chunk(puf->e, &chunk);
+ size = aa_unpack_u16_chunk(puf->e, &chunk);
KUNIT_EXPECT_PTR_EQ(test, chunk,
puf->e->start + TEST_U16_OFFSET + 2);
@@ -406,7 +409,7 @@ static void policy_unpack_test_unpack_u16_chunk_out_of_bounds_1(
puf->e->pos = puf->e->end - 1;
- size = unpack_u16_chunk(puf->e, &chunk);
+ size = aa_unpack_u16_chunk(puf->e, &chunk);
KUNIT_EXPECT_EQ(test, size, 0);
KUNIT_EXPECT_NULL(test, chunk);
@@ -428,7 +431,7 @@ static void policy_unpack_test_unpack_u16_chunk_out_of_bounds_2(
*/
puf->e->end = puf->e->pos + TEST_U16_DATA - 1;
- size = unpack_u16_chunk(puf->e, &chunk);
+ size = aa_unpack_u16_chunk(puf->e, &chunk);
KUNIT_EXPECT_EQ(test, size, 0);
KUNIT_EXPECT_NULL(test, chunk);
@@ -443,7 +446,7 @@ static void policy_unpack_test_unpack_u32_with_null_name(struct kunit *test)
puf->e->pos += TEST_U32_BUF_OFFSET;
- success = unpack_u32(puf->e, &data, NULL);
+ success = aa_unpack_u32(puf->e, &data, NULL);
KUNIT_EXPECT_TRUE(test, success);
KUNIT_EXPECT_EQ(test, data, TEST_U32_DATA);
@@ -460,7 +463,7 @@ static void policy_unpack_test_unpack_u32_with_name(struct kunit *test)
puf->e->pos += TEST_NAMED_U32_BUF_OFFSET;
- success = unpack_u32(puf->e, &data, name);
+ success = aa_unpack_u32(puf->e, &data, name);
KUNIT_EXPECT_TRUE(test, success);
KUNIT_EXPECT_EQ(test, data, TEST_U32_DATA);
@@ -478,7 +481,7 @@ static void policy_unpack_test_unpack_u32_out_of_bounds(struct kunit *test)
puf->e->pos += TEST_NAMED_U32_BUF_OFFSET;
puf->e->end = puf->e->start + TEST_U32_BUF_OFFSET + sizeof(u32);
- success = unpack_u32(puf->e, &data, name);
+ success = aa_unpack_u32(puf->e, &data, name);
KUNIT_EXPECT_FALSE(test, success);
KUNIT_EXPECT_PTR_EQ(test, puf->e->pos,
@@ -493,7 +496,7 @@ static void policy_unpack_test_unpack_u64_with_null_name(struct kunit *test)
puf->e->pos += TEST_U64_BUF_OFFSET;
- success = unpack_u64(puf->e, &data, NULL);
+ success = aa_unpack_u64(puf->e, &data, NULL);
KUNIT_EXPECT_TRUE(test, success);
KUNIT_EXPECT_EQ(test, data, TEST_U64_DATA);
@@ -510,7 +513,7 @@ static void policy_unpack_test_unpack_u64_with_name(struct kunit *test)
puf->e->pos += TEST_NAMED_U64_BUF_OFFSET;
- success = unpack_u64(puf->e, &data, name);
+ success = aa_unpack_u64(puf->e, &data, name);
KUNIT_EXPECT_TRUE(test, success);
KUNIT_EXPECT_EQ(test, data, TEST_U64_DATA);
@@ -528,7 +531,7 @@ static void policy_unpack_test_unpack_u64_out_of_bounds(struct kunit *test)
puf->e->pos += TEST_NAMED_U64_BUF_OFFSET;
puf->e->end = puf->e->start + TEST_U64_BUF_OFFSET + sizeof(u64);
- success = unpack_u64(puf->e, &data, name);
+ success = aa_unpack_u64(puf->e, &data, name);
KUNIT_EXPECT_FALSE(test, success);
KUNIT_EXPECT_PTR_EQ(test, puf->e->pos,
@@ -538,7 +541,7 @@ static void policy_unpack_test_unpack_u64_out_of_bounds(struct kunit *test)
static void policy_unpack_test_unpack_X_code_match(struct kunit *test)
{
struct policy_unpack_fixture *puf = test->priv;
- bool success = unpack_X(puf->e, AA_NAME);
+ bool success = aa_unpack_X(puf->e, AA_NAME);
KUNIT_EXPECT_TRUE(test, success);
KUNIT_EXPECT_TRUE(test, puf->e->pos == puf->e->start + 1);
@@ -547,7 +550,7 @@ static void policy_unpack_test_unpack_X_code_match(struct kunit *test)
static void policy_unpack_test_unpack_X_code_mismatch(struct kunit *test)
{
struct policy_unpack_fixture *puf = test->priv;
- bool success = unpack_X(puf->e, AA_STRING);
+ bool success = aa_unpack_X(puf->e, AA_STRING);
KUNIT_EXPECT_FALSE(test, success);
KUNIT_EXPECT_TRUE(test, puf->e->pos == puf->e->start);
@@ -559,7 +562,7 @@ static void policy_unpack_test_unpack_X_out_of_bounds(struct kunit *test)
bool success;
puf->e->pos = puf->e->end;
- success = unpack_X(puf->e, AA_NAME);
+ success = aa_unpack_X(puf->e, AA_NAME);
KUNIT_EXPECT_FALSE(test, success);
}
@@ -605,3 +608,5 @@ static struct kunit_suite apparmor_policy_unpack_test_module = {
};
kunit_test_suite(apparmor_policy_unpack_test_module);
+
+MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-27 02:30:44 +0300