From 4951286eb634c00c11883b851c91f3a21975eabd Mon Sep 17 00:00:00 2001
From: Eugene Syromyatnikov <evgsyr@gmail.com>
Date: Tue, 18 Jan 2022 18:03:57 +0100
Subject: [PATCH 171/174] tests/secontext: add secontext field getters
* tests/secontext.h (get_secontext_field, get_secontext_field_file): New
declarations.
* tests/secontext.c (get_type_from_context): Rename to...
(get_secontext_field): ...this; remove "static" qualifier; add "field"
argument, use it.
(raw_expected_secontext_short_file, raw_secontext_short_pid): Replace
get_type_from_context call with get_secontext_field.
(get_secontext_field_file): New function.
(raw_secontext_short_file): Replace body with get_secontext_field_file
call.
---
tests/secontext.c | 27 +++++++++++++++------------
tests/secontext.h | 20 ++++++++++++++++++++
2 files changed, 35 insertions(+), 12 deletions(-)
diff --git a/tests/secontext.c b/tests/secontext.c
index 848eea9..52211ed 100644
--- a/tests/secontext.c
+++ b/tests/secontext.c
@@ -56,8 +56,8 @@ strip_trailing_newlines(char *context)
return context;
}
-static char *
-get_type_from_context(const char *full_context)
+char *
+get_secontext_field(const char *full_context, enum secontext_field field)
{
int saved_errno = errno;
@@ -72,7 +72,7 @@ get_type_from_context(const char *full_context)
char *context = NULL;
for (token = strtok_r(ctx_copy, ":", &saveptr), i = 0;
token; token = strtok_r(NULL, ":", &saveptr), i++) {
- if (i == 2) {
+ if (i == field) {
context = xstrdup(token);
break;
}
@@ -122,7 +122,7 @@ raw_expected_secontext_short_file(const char *filename)
int saved_errno = errno;
char *ctx = raw_expected_secontext_full_file(filename);
- char *type = get_type_from_context(ctx);
+ char *type = get_secontext_field(ctx, SECONTEXT_TYPE);
free(ctx);
errno = saved_errno;
@@ -144,20 +144,23 @@ raw_secontext_full_file(const char *filename)
return full_secontext;
}
-static char *
-raw_secontext_short_file(const char *filename)
+char *
+get_secontext_field_file(const char *file, enum secontext_field field)
{
- int saved_errno = errno;
-
- char *ctx = raw_secontext_full_file(filename);
- char *type = get_type_from_context(ctx);
+ char *ctx = raw_secontext_full_file(file);
+ char *type = get_secontext_field(ctx, field);
free(ctx);
- errno = saved_errno;
return type;
}
static char *
+raw_secontext_short_file(const char *filename)
+{
+ return get_secontext_field_file(filename, SECONTEXT_TYPE);
+}
+
+static char *
raw_secontext_full_pid(pid_t pid)
{
int saved_errno = errno;
@@ -178,7 +181,7 @@ raw_secontext_short_pid(pid_t pid)
int saved_errno = errno;
char *ctx = raw_secontext_full_pid(pid);
- char *type = get_type_from_context(ctx);
+ char *type = get_secontext_field(ctx, SECONTEXT_TYPE);
free(ctx);
errno = saved_errno;
diff --git a/tests/secontext.h b/tests/secontext.h
index 1d0251a..e5571d5 100644
--- a/tests/secontext.h
+++ b/tests/secontext.h
@@ -23,6 +23,15 @@ enum secontext_field {
#if defined TEST_SECONTEXT && defined HAVE_SELINUX_RUNTIME
+/**
+ * Parse a SELinux context string and return a specified field, duplicated
+ * in a separate string. The caller is responsible for freeing the memory
+ * pointed by the returned value.
+ */
+char *get_secontext_field(const char *full_context, enum secontext_field field);
+
+char *get_secontext_field_file(const char *file, enum secontext_field field);
+
void update_secontext_field(const char *file, enum secontext_field field,
const char *newvalue);
@@ -48,6 +57,17 @@ void update_secontext_field(const char *file, enum secontext_field field,
#else
+static inline char *
+get_secontext_field(const char *ctx, enum secontext_field field)
+{
+ return NULL;
+}
+static inline char *
+get_secontext_field_file(const char *file, enum secontext_field field)
+{
+ return NULL;
+}
+
static inline void
update_secontext_field(const char *file, enum secontext_field field,
const char *newvalue)
diff --git a/tests-m32/secontext.c b/tests-m32/secontext.c
index 848eea9..52211ed 100644
--- a/tests-m32/secontext.c
+++ b/tests-m32/secontext.c
@@ -56,8 +56,8 @@ strip_trailing_newlines(char *context)
return context;
}
-static char *
-get_type_from_context(const char *full_context)
+char *
+get_secontext_field(const char *full_context, enum secontext_field field)
{
int saved_errno = errno;
@@ -72,7 +72,7 @@ get_type_from_context(const char *full_context)
char *context = NULL;
for (token = strtok_r(ctx_copy, ":", &saveptr), i = 0;
token; token = strtok_r(NULL, ":", &saveptr), i++) {
- if (i == 2) {
+ if (i == field) {
context = xstrdup(token);
break;
}
@@ -122,7 +122,7 @@ raw_expected_secontext_short_file(const char *filename)
int saved_errno = errno;
char *ctx = raw_expected_secontext_full_file(filename);
- char *type = get_type_from_context(ctx);
+ char *type = get_secontext_field(ctx, SECONTEXT_TYPE);
free(ctx);
errno = saved_errno;
@@ -144,20 +144,23 @@ raw_secontext_full_file(const char *filename)
return full_secontext;
}
-static char *
-raw_secontext_short_file(const char *filename)
+char *
+get_secontext_field_file(const char *file, enum secontext_field field)
{
- int saved_errno = errno;
-
- char *ctx = raw_secontext_full_file(filename);
- char *type = get_type_from_context(ctx);
+ char *ctx = raw_secontext_full_file(file);
+ char *type = get_secontext_field(ctx, field);
free(ctx);
- errno = saved_errno;
return type;
}
static char *
+raw_secontext_short_file(const char *filename)
+{
+ return get_secontext_field_file(filename, SECONTEXT_TYPE);
+}
+
+static char *
raw_secontext_full_pid(pid_t pid)
{
int saved_errno = errno;
@@ -178,7 +181,7 @@ raw_secontext_short_pid(pid_t pid)
int saved_errno = errno;
char *ctx = raw_secontext_full_pid(pid);
- char *type = get_type_from_context(ctx);
+ char *type = get_secontext_field(ctx, SECONTEXT_TYPE);
free(ctx);
errno = saved_errno;
diff --git a/tests-m32/secontext.h b/tests-m32/secontext.h
index 1d0251a..e5571d5 100644
--- a/tests-m32/secontext.h
+++ b/tests-m32/secontext.h
@@ -23,6 +23,15 @@ enum secontext_field {
#if defined TEST_SECONTEXT && defined HAVE_SELINUX_RUNTIME
+/**
+ * Parse a SELinux context string and return a specified field, duplicated
+ * in a separate string. The caller is responsible for freeing the memory
+ * pointed by the returned value.
+ */
+char *get_secontext_field(const char *full_context, enum secontext_field field);
+
+char *get_secontext_field_file(const char *file, enum secontext_field field);
+
void update_secontext_field(const char *file, enum secontext_field field,
const char *newvalue);
@@ -48,6 +57,17 @@ void update_secontext_field(const char *file, enum secontext_field field,
#else
+static inline char *
+get_secontext_field(const char *ctx, enum secontext_field field)
+{
+ return NULL;
+}
+static inline char *
+get_secontext_field_file(const char *file, enum secontext_field field)
+{
+ return NULL;
+}
+
static inline void
update_secontext_field(const char *file, enum secontext_field field,
const char *newvalue)
diff --git a/tests-mx32/secontext.c b/tests-mx32/secontext.c
index 848eea9..52211ed 100644
--- a/tests-mx32/secontext.c
+++ b/tests-mx32/secontext.c
@@ -56,8 +56,8 @@ strip_trailing_newlines(char *context)
return context;
}
-static char *
-get_type_from_context(const char *full_context)
+char *
+get_secontext_field(const char *full_context, enum secontext_field field)
{
int saved_errno = errno;
@@ -72,7 +72,7 @@ get_type_from_context(const char *full_context)
char *context = NULL;
for (token = strtok_r(ctx_copy, ":", &saveptr), i = 0;
token; token = strtok_r(NULL, ":", &saveptr), i++) {
- if (i == 2) {
+ if (i == field) {
context = xstrdup(token);
break;
}
@@ -122,7 +122,7 @@ raw_expected_secontext_short_file(const char *filename)
int saved_errno = errno;
char *ctx = raw_expected_secontext_full_file(filename);
- char *type = get_type_from_context(ctx);
+ char *type = get_secontext_field(ctx, SECONTEXT_TYPE);
free(ctx);
errno = saved_errno;
@@ -144,20 +144,23 @@ raw_secontext_full_file(const char *filename)
return full_secontext;
}
-static char *
-raw_secontext_short_file(const char *filename)
+char *
+get_secontext_field_file(const char *file, enum secontext_field field)
{
- int saved_errno = errno;
-
- char *ctx = raw_secontext_full_file(filename);
- char *type = get_type_from_context(ctx);
+ char *ctx = raw_secontext_full_file(file);
+ char *type = get_secontext_field(ctx, field);
free(ctx);
- errno = saved_errno;
return type;
}
static char *
+raw_secontext_short_file(const char *filename)
+{
+ return get_secontext_field_file(filename, SECONTEXT_TYPE);
+}
+
+static char *
raw_secontext_full_pid(pid_t pid)
{
int saved_errno = errno;
@@ -178,7 +181,7 @@ raw_secontext_short_pid(pid_t pid)
int saved_errno = errno;
char *ctx = raw_secontext_full_pid(pid);
- char *type = get_type_from_context(ctx);
+ char *type = get_secontext_field(ctx, SECONTEXT_TYPE);
free(ctx);
errno = saved_errno;
diff --git a/tests-mx32/secontext.h b/tests-mx32/secontext.h
index 1d0251a..e5571d5 100644
--- a/tests-mx32/secontext.h
+++ b/tests-mx32/secontext.h
@@ -23,6 +23,15 @@ enum secontext_field {
#if defined TEST_SECONTEXT && defined HAVE_SELINUX_RUNTIME
+/**
+ * Parse a SELinux context string and return a specified field, duplicated
+ * in a separate string. The caller is responsible for freeing the memory
+ * pointed by the returned value.
+ */
+char *get_secontext_field(const char *full_context, enum secontext_field field);
+
+char *get_secontext_field_file(const char *file, enum secontext_field field);
+
void update_secontext_field(const char *file, enum secontext_field field,
const char *newvalue);
@@ -48,6 +57,17 @@ void update_secontext_field(const char *file, enum secontext_field field,
#else
+static inline char *
+get_secontext_field(const char *ctx, enum secontext_field field)
+{
+ return NULL;
+}
+static inline char *
+get_secontext_field_file(const char *file, enum secontext_field field)
+{
+ return NULL;
+}
+
static inline void
update_secontext_field(const char *file, enum secontext_field field,
const char *newvalue)
--
2.1.4