initial commit

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>

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diff --git a/AUTHORS b/AUTHORS
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--- /dev/null
+++ b/AUTHORS
diff --git a/COPYING b/COPYING
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--- /dev/null
+++ b/COPYING
@@ -0,0 +1,510 @@
+
+		  GNU LESSER GENERAL PUBLIC LICENSE
+		       Version 2.1, February 1999
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diff --git a/ChangeLog b/ChangeLog
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/ChangeLog
diff --git a/Makefile.am b/Makefile.am
new file mode 100644
index 0000000..674bbc0
--- /dev/null
+++ b/Makefile.am
@@ -0,0 +1 @@
+SUBDIRS = lib tests
diff --git a/NEWS b/NEWS
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/NEWS
diff --git a/README b/README
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/README
diff --git a/configure.ac b/configure.ac
new file mode 100644
index 0000000..b89562f
--- /dev/null
+++ b/configure.ac
@@ -0,0 +1,22 @@
+AC_PREREQ(2.59)
+AC_INIT([libsmaf],[0.1.0])
+
+AC_CONFIG_FILES([Makefile
+	lib/Makefile
+	tests/Makefile
+	lib/libsmaf.pc])
+
+AM_INIT_AUTOMAKE([1.9 subdir-objects no-dist-gzip dist-bzip2 -Wno-portability]) # 1.10 is needed for target_LIBTOOLFLAGS
+
+# Checks for programs.
+AC_PROG_CXX
+AC_PROG_CC_C99
+AC_PROG_INSTALL
+AC_PROG_LIBTOOL
+AC_PROG_MKDIR_P
+AC_PROG_LN_S
+PKG_PROG_PKG_CONFIG
+
+AC_SUBST([pkgconfigdir], [$libdir/pkgconfig])
+
+AC_OUTPUT
diff --git a/lib/Makefile.am b/lib/Makefile.am
new file mode 100644
index 0000000..60da35e
--- /dev/null
+++ b/lib/Makefile.am
@@ -0,0 +1,7 @@
+lib_LTLIBRARIES = libsmaf.la
+include_HEADERS = libsmaf.h
+pkgconfig_DATA = libsmaf.pc
+
+libsmaf_la_SOURCES = libsmaf.c libsmaf.h smaf.h
+
+
diff --git a/lib/libsmaf.c b/lib/libsmaf.c
new file mode 100644
index 0000000..2025086
--- /dev/null
+++ b/lib/libsmaf.c
@@ -0,0 +1,138 @@
+/*
+ * libsmaf.c
+ *
+ * Copyright (C) Linaro SA 2015
+ * Author: Benjamin Gaignard <benjamin.gaignard@linaro.org> for Linaro.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or
+ * (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA  02110-1335  USA
+ */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include "smaf.h"
+#include "libsmaf.h"
+
+#define SMAF_DEV "/dev/smaf"
+
+static int open_count = 0;
+static int smaf_fd = -1;
+
+int smaf_open(void)
+{
+	if (open_count)
+		goto add;
+
+	smaf_fd = open(SMAF_DEV, O_RDWR, 0);
+
+	if (smaf_fd == -1)
+		return -1;
+
+add:
+	open_count++;
+	return 0;
+}
+
+void smaf_close(void)
+{
+	open_count--;
+
+	if (open_count)
+		return;
+
+	close(smaf_fd);
+	smaf_fd = -1;
+}
+
+int smaf_create_buffer(unsigned int length, unsigned int flags, int *fd)
+{
+	struct smaf_create_data create;
+	int ret;
+
+	if (smaf_fd == -1)
+		return -1;
+
+	memset (&create, 0, sizeof (create));
+
+	create.length = length;
+	create.flags = flags;
+
+	ret = ioctl(smaf_fd, SMAF_IOC_CREATE, &create);
+	if (ret) {
+		*fd = -1;
+		return ret;
+	}
+
+	*fd = create.fd;
+	return 0;
+}
+
+int smaf_set_secure(int fd, int secure)
+{
+	struct smaf_secure_flag flag;
+	int ret;
+
+	if (smaf_fd == -1)
+		return -1;
+
+	memset (&flag, 0, sizeof(flag));
+	flag.fd = fd;
+	flag.secure = secure;
+
+	ret = ioctl(smaf_fd, SMAF_IOC_SET_SECURE_FLAG, &flag);
+
+	return ret;
+}
+
+int smaf_get_secure(int fd)
+{
+	struct smaf_secure_flag flag;
+	int ret;
+
+	if (smaf_fd == -1)
+		return 0;
+
+	memset (&flag, 0, sizeof(flag));
+	flag.fd = fd;
+
+	ret = ioctl(smaf_fd, SMAF_IOC_GET_SECURE_FLAG, &flag);
+
+	return flag.secure;
+}
+
+int smaf_select_allocator(int fd, char *name)
+{
+	struct smaf_select_by_name select;
+	int ret;
+
+	if (smaf_fd == -1)
+		return -1;
+
+	memset(&select, 0, sizeof(select));
+	select.fd = fd;
+	strncpy(select.name, name, sizeof(select.name));
+
+	ret = ioctl(smaf_fd, SMAF_IOC_SELECT_BY_NAME, &select);
+
+	return ret;
+}
diff --git a/lib/libsmaf.h b/lib/libsmaf.h
new file mode 100644
index 0000000..efb4d07
--- /dev/null
+++ b/lib/libsmaf.h
@@ -0,0 +1,39 @@
+/*
+ * libsmaf.h
+ *
+ * Copyright (C) Linaro SA 2015
+ * Author: Benjamin Gaignard <benjamin.gaignard@linaro.org> for Linaro.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or
+ * (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA  02110-1335  USA
+ */
+
+#ifndef _LIBSMAF_H_
+#define _LIBSMAF_H_
+
+/* For O_CLOEXEC and O_RDWR flags definition */
+#include <fcntl.h>
+
+/* For close() */
+#include <unistd.h>
+
+int smaf_open();
+void smaf_close();
+
+int smaf_create_buffer(unsigned int length, unsigned int flags, int *fd);
+int smaf_set_secure(int fd, int secure);
+int smaf_get_secure(int fd);
+int smaf_select_allocator(int fd, char *name);
+
+#endif
diff --git a/lib/libsmaf.pc.in b/lib/libsmaf.pc.in
new file mode 100644
index 0000000..6dc4cd0
--- /dev/null
+++ b/lib/libsmaf.pc.in
@@ -0,0 +1,10 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+includedir=@includedir@
+libdir=@libdir@
+
+Name: libsmaf
+Description: smaf access library
+Version: @PACKAGE_VERSION@
+Libs: -L${libdir} -lsmaf
+Cflags: -I${includedir}/libsmaf.h
diff --git a/lib/smaf.h b/lib/smaf.h
new file mode 100644
index 0000000..b8a0194
--- /dev/null
+++ b/lib/smaf.h
@@ -0,0 +1,61 @@
+/*
+ * smaf.h
+ *
+ * Copyright (C) Linaro SA 2015
+ * Author: Benjamin Gaignard <benjamin.gaignard@linaro.org> for Linaro.
+ * License terms:  GNU General Public License (GPL), version 2
+ */
+
+#ifndef _UAPI_SMAF_H_
+#define _UAPI_SMAF_H_
+
+#include <linux/ioctl.h>
+#include <linux/types.h>
+
+/**
+ * struct smaf_create_data - allocation parameters
+ * @length:	size of the allocation
+ * @flags:	flags passed to allocator
+ * @fd:		returned file descriptor
+ */
+struct smaf_create_data {
+	size_t length;
+	unsigned int flags;
+	int fd;
+};
+
+/**
+ * struct smaf_secure_flag - set/get secure flag
+ * @fd:		file descriptor
+ * @secure:	secure flag value (set or get)
+ */
+struct smaf_secure_flag {
+	int fd;
+	int secure;
+};
+
+/**
+ * struct smaf_select_by_name - select an allocator
+ * @fd:		file descriptor
+ * @name:	name of the allocator to be selected
+ */
+struct smaf_select_by_name {
+	int fd;
+	char name[64];
+};
+
+#define SMAF_IOC_MAGIC	'S'
+
+#define SMAF_IOC_CREATE		 _IOWR(SMAF_IOC_MAGIC, 0, \
+						struct smaf_create_data)
+
+#define SMAF_IOC_GET_SECURE_FLAG _IOWR(SMAF_IOC_MAGIC, 1, \
+				       struct smaf_secure_flag)
+
+#define SMAF_IOC_SET_SECURE_FLAG _IOWR(SMAF_IOC_MAGIC, 2, \
+				       struct smaf_secure_flag)
+
+#define SMAF_IOC_SELECT_BY_NAME	_IOWR(SMAF_IOC_MAGIC, 3, \
+				      struct smaf_select_by_name)
+
+#endif
diff --git a/tests/Makefile.am b/tests/Makefile.am
new file mode 100644
index 0000000..e446588
--- /dev/null
+++ b/tests/Makefile.am
@@ -0,0 +1,4 @@
+bin_PROGRAMS = test_smaf
+
+test_smaf_SOURCES = test_smaf.c
+test_smaf_LDADD = ../lib/libsmaf.la
diff --git a/tests/test_smaf.c b/tests/test_smaf.c
new file mode 100644
index 0000000..c8e2082
--- /dev/null
+++ b/tests/test_smaf.c
@@ -0,0 +1,156 @@
+/*
+ * test_smaf.c
+ *
+ * Copyright (C) Linaro SA 2015
+ * Author: Benjamin Gaignard <benjamin.gaignard@linaro.org> for Linaro.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or
+ * (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA  02110-1335  USA
+ */
+
+#include <../lib/libsmaf.h>
+#include <stdio.h>
+
+#define LENGTH 1024*16
+
+static void test_select_invalid(void)
+{
+	int ret;
+	int fd;
+	ret = smaf_open();
+
+	if (ret) {
+		printf("test_select_invalid smaf_open() failed %d\n", ret);
+		return;
+	}
+
+	ret = smaf_create_buffer(LENGTH, O_CLOEXEC | O_RDWR, &fd);
+
+	if (ret || (fd == -1)) {
+		printf("test_select_invalid smaf_create_buffer() failed %d\n", ret);
+		smaf_close();
+		return;
+	}
+
+	ret = smaf_select_allocator(fd, "deadbeef");
+	if (!ret) {
+		printf("test_select_invalid smaf_select_allocator failed %d\n", ret);
+		goto end;
+	}
+
+	printf("test_select_invalid successed\n");
+end:
+	close(fd);
+	smaf_close();
+}
+
+static void test_select(void)
+{
+	int ret;
+	int fd;
+	ret = smaf_open();
+
+	if (ret) {
+		printf("test_select smaf_open() failed %d\n", ret);
+		return;
+	}
+
+	ret = smaf_create_buffer(LENGTH, O_CLOEXEC | O_RDWR, &fd);
+
+	if (ret || (fd == -1)) {
+		printf("test_select smaf_create_buffer() failed %d\n", ret);
+		smaf_close();
+		return;
+	}
+
+	ret = smaf_select_allocator(fd, "smaf-cma");
+	if (ret) {
+		printf("test_select smaf_select_allocator failed %d\n", ret);
+		goto end;
+	}
+
+	printf("test_select successed\n");
+end:
+	close(fd);
+	smaf_close();
+}
+
+static void test_secure(void)
+{
+	int ret;
+	int fd;
+	ret = smaf_open();
+
+	if (ret) {
+		printf("test_secure smaf_open() failed %d\n", ret);
+		return;
+	}
+
+	ret = smaf_create_buffer(LENGTH, O_CLOEXEC | O_RDWR, &fd);
+
+	if (ret || (fd == -1)) {
+		printf("test_secure smaf_create_buffer() failed %d\n", ret);
+		smaf_close();
+		return;
+	}
+
+	ret = smaf_set_secure(fd, 1);
+	if (ret) {
+		printf("test_secure smaf_set_secure() failed %d\n", ret);
+		goto end;
+	}
+
+	ret = smaf_get_secure(fd);
+	if (!ret) {
+		printf("test_secure smaf_get_secure() failed %d\n", ret);
+		goto end;
+	}
+
+	printf("test_secure successed\n");
+end:
+	close(fd);
+	smaf_close();
+}
+
+static void test_create(void)
+{
+	int ret;
+	int fd;
+	ret = smaf_open();
+
+	if (ret) {
+		printf("test_create smaf_open() failed %d\n", ret);
+		return;
+	}
+
+	ret = smaf_create_buffer(LENGTH, O_CLOEXEC | O_RDWR, &fd);
+
+	if (ret || (fd == -1)) {
+		printf("test_create smaf_create_buffer() failed %d\n", ret);
+		smaf_close();
+		return;
+	}
+
+	close(fd);
+	smaf_close();
+	printf("test_create successed\n");
+}
+
+void main (void)
+{
+	test_create();
+	test_secure();
+	test_select();
+	test_select_invalid();
+}