1 files changed, 108 insertions, 0 deletions
diff --git a/src/arch-mips.c b/src/arch-mips.c
new file mode 100644
index 0000000..5a12a11
--- /dev/null
+++ b/src/arch-mips.c
@@ -0,0 +1,108 @@
+/**
+ * Enhanced Seccomp MIPS Specific Code
+ *
+ * Copyright (c) 2014 Imagination Technologies Ltd.
+ * Author: Markos Chandras <markos.chandras@imgtec.com>
+ *
+ */
+
+/*
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of version 2.1 of the GNU Lesser General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This library 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 library; if not, see <http://www.gnu.org/licenses>.
+ */
+
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+#include <linux/audit.h>
+
+#include "db.h"
+#include "syscalls.h"
+#include "arch.h"
+#include "arch-mips.h"
+
+/* O32 ABI */
+#define __SCMP_NR_BASE			4000
+
+/* mips syscall numbers */
+#define __mips_NR_socketcall		(__SCMP_NR_BASE + 102)
+#define __mips_NR_ipc			(__SCMP_NR_BASE + 117)
+
+/**
+ * Resolve a syscall name to a number
+ * @param name the syscall name
+ *
+ * Resolve the given syscall name to the syscall number using the syscall table.
+ * Returns the syscall number on success, including negative pseudo syscall
+ * numbers; returns __NR_SCMP_ERROR on failure.
+ *
+ */
+int mips_syscall_resolve_name_raw(const char *name)
+{
+	int sys;
+
+	/* NOTE: we don't want to modify the pseudo-syscall numbers */
+	sys = mips_syscall_resolve_name(name);
+	if (sys == __NR_SCMP_ERROR || sys < 0)
+		return sys;
+
+	return sys + __SCMP_NR_BASE;
+}
+
+/**
+ * Resolve a syscall number to a name
+ * @param num the syscall number
+ *
+ * Resolve the given syscall number to the syscall name using the syscall table.
+ * Returns a pointer to the syscall name string on success, including pseudo
+ * syscall names; returns NULL on failure.
+ *
+ */
+const char *mips_syscall_resolve_num_raw(int num)
+{
+	/* NOTE: we don't want to modify the pseudo-syscall numbers */
+	if (num >= __SCMP_NR_BASE)
+		num -= __SCMP_NR_BASE;
+	return mips_syscall_resolve_num(num);
+}
+
+ARCH_DEF(mips)
+
+const struct arch_def arch_def_mips = {
+	.token = SCMP_ARCH_MIPS,
+	.token_bpf = AUDIT_ARCH_MIPS,
+	.size = ARCH_SIZE_32,
+	.endian = ARCH_ENDIAN_BIG,
+	.sys_socketcall = __mips_NR_socketcall,
+	.sys_ipc = __mips_NR_ipc,
+	.syscall_resolve_name = abi_syscall_resolve_name_munge,
+	.syscall_resolve_name_raw = mips_syscall_resolve_name_raw,
+	.syscall_resolve_num = abi_syscall_resolve_num_munge,
+	.syscall_resolve_num_raw = mips_syscall_resolve_num_raw,
+	.syscall_rewrite = abi_syscall_rewrite,
+	.rule_add = abi_rule_add,
+};
+
+const struct arch_def arch_def_mipsel = {
+	.token = SCMP_ARCH_MIPSEL,
+	.token_bpf = AUDIT_ARCH_MIPSEL,
+	.size = ARCH_SIZE_32,
+	.endian = ARCH_ENDIAN_LITTLE,
+	.sys_socketcall = __mips_NR_socketcall,
+	.sys_ipc = __mips_NR_ipc,
+	.syscall_resolve_name = abi_syscall_resolve_name_munge,
+	.syscall_resolve_name_raw = mips_syscall_resolve_name_raw,
+	.syscall_resolve_num = abi_syscall_resolve_num_munge,
+	.syscall_resolve_num_raw = mips_syscall_resolve_num_raw,
+	.syscall_rewrite = abi_syscall_rewrite,
+	.rule_add = abi_rule_add,
+};