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authorLennart Poettering <lennart@poettering.net>2014-02-13 00:24:00 +0100
committerLennart Poettering <lennart@poettering.net>2014-02-13 00:24:00 +0100
commit57183d117a1d6a96d71ce99d648beb0d2b36228d (patch)
tree4b0c5b62073bf4766bd825c5d7d6b75967d7be40 /src/shared
parent351a19b17d51ba0a5737f35d3c5deb8e7975fdee (diff)
core: add SystemCallArchitectures= unit setting to allow disabling of non-native
architecture support for system calls Also, turn system call filter bus properties into complex types instead of concatenated strings.
Diffstat (limited to 'src/shared')
-rw-r--r--src/shared/seccomp-util.c63
-rw-r--r--src/shared/seccomp-util.h26
2 files changed, 89 insertions, 0 deletions
diff --git a/src/shared/seccomp-util.c b/src/shared/seccomp-util.c
new file mode 100644
index 0000000000..ee39cc7c1d
--- /dev/null
+++ b/src/shared/seccomp-util.c
@@ -0,0 +1,63 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2014 Lennart Poettering
+
+ systemd 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.
+
+ systemd 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 systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <seccomp.h>
+
+#include "util.h"
+#include "seccomp-util.h"
+
+const char* seccomp_arch_to_string(uint32_t c) {
+
+ if (c == SCMP_ARCH_NATIVE)
+ return "native";
+ if (c == SCMP_ARCH_X86)
+ return "x86";
+ if (c == SCMP_ARCH_X86_64)
+ return "x86-64";
+ if (c == SCMP_ARCH_X32)
+ return "x32";
+ if (c == SCMP_ARCH_ARM)
+ return "arm";
+
+ return NULL;
+}
+
+int seccomp_arch_from_string(const char *n, uint32_t *ret) {
+ if (!n)
+ return -EINVAL;
+
+ assert(ret);
+
+ if (streq(n, "native"))
+ *ret = SCMP_ARCH_NATIVE;
+ else if (streq(n, "x86"))
+ *ret = SCMP_ARCH_X86;
+ else if (streq(n, "x86-64"))
+ *ret = SCMP_ARCH_X86_64;
+ else if (streq(n, "x32"))
+ *ret = SCMP_ARCH_X32;
+ else if (streq(n, "arm"))
+ *ret = SCMP_ARCH_ARM;
+ else
+ return -EINVAL;
+
+ return 0;
+}
diff --git a/src/shared/seccomp-util.h b/src/shared/seccomp-util.h
new file mode 100644
index 0000000000..6b63902f5d
--- /dev/null
+++ b/src/shared/seccomp-util.h
@@ -0,0 +1,26 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#pragma once
+
+/***
+ This file is part of systemd.
+
+ Copyright 2014 Lennart Poettering
+
+ systemd 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.
+
+ systemd 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 systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+
+const char* seccomp_arch_to_string(uint32_t c);
+int seccomp_arch_from_string(const char *n, uint32_t *ret);