151 lines
4.5 KiB
Diff
151 lines
4.5 KiB
Diff
From 8dc75f225774468eed52fdfba3248034fab6b505 Mon Sep 17 00:00:00 2001
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From: rpm-build <rpm-build>
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Date: Thu, 31 Aug 2023 14:23:27 +0800
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Subject: [PATCH 1/4] add sw_64 support not upstream new files
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---
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src/arch-sw_64.c | 95 ++++++++++++++++++++++++++++++++++++++++++++++++
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src/arch-sw_64.h | 28 ++++++++++++++
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2 files changed, 123 insertions(+)
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create mode 100644 src/arch-sw_64.c
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create mode 100644 src/arch-sw_64.h
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diff --git a/src/arch-sw_64.c b/src/arch-sw_64.c
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new file mode 100644
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index 0000000..74ef4d7
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--- /dev/null
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+++ b/src/arch-sw_64.c
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@@ -0,0 +1,95 @@
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+/**
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+ * Enhanced Seccomp SW_64 Specific Code
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+ *
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+ * Copyright (c) 2013 Red Hat <pmoore@redhat.com>
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+ * Author: Paul Moore <paul@paul-moore.com>
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+ */
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+
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+/*
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+ * This library is free software; you can redistribute it and/or modify it
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+ * under the terms of version 2.1 of the GNU Lesser General Public License as
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+ * published by the Free Software Foundation.
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+ *
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+ * This library is distributed in the hope that it will be useful, but WITHOUT
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+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
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+ * for more details.
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+ *
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+ * You should have received a copy of the GNU Lesser General Public License
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+ * along with this library; if not, see <http://www.gnu.org/licenses>.
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+ */
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+
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+#include <stdlib.h>
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+#include <errno.h>
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+#include <linux/audit.h>
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+
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+#include "arch.h"
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+#include "arch-sw_64.h"
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+#include "syscalls.h"
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+
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+#define __SCMP_NR_OABI_SYSCALL_BASE 0x900000
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+#define __SCMP_SW_64_NR_BASE 0x0f0000
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+
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+/* NOTE: we currently only support the ARM EABI, more info at the URL below:
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+ * -> http://wiki.embeddedarm.com/wiki/EABI_vs_OABI */
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+#if 1
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+#define __SCMP_NR_BASE 0
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+#else
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+#define __SCMP_NR_BASE __SCMP_NR_OABI_SYSCALL_BASE
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+#endif
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+
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+/**
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+ * Resolve a syscall name to a number
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+ * @param arch the architecture definition
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+ * @param name the syscall name
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+ *
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+ * Resolve the given syscall name to the syscall number using the syscall table.
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+ * Returns the syscall number on success, including negative pseudo syscall
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+ * numbers; returns __NR_SCMP_ERROR on failure.
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+ *
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+ */
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+int sw_64_syscall_resolve_name_munge(const struct arch_def *arch,
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+ const char *name)
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+{
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+ int sys;
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+
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+ /* NOTE: we don't want to modify the pseudo-syscall numbers */
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+ sys = arch->syscall_resolve_name_raw(name);
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+ if (sys == __NR_SCMP_ERROR || sys < 0)
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+ return sys;
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+
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+ return (sys | __SCMP_NR_BASE);
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+}
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+
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+/**
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+ * Resolve a syscall number to a name
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+ * @param arch the architecture definition
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+ * @param num the syscall number
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+ *
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+ * Resolve the given syscall number to the syscall name using the syscall table.
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+ * Returns a pointer to the syscall name string on success, including pseudo
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+ * syscall names; returns NULL on failure.
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+ *
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+ */
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+const char *sw_64_syscall_resolve_num_munge(const struct arch_def *arch, int num)
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+{
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+ /* NOTE: we don't want to modify the pseudo-syscall numbers */
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+ if (num >= 0)
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+ num &= ~__SCMP_NR_BASE;
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+ return arch->syscall_resolve_num_raw(num);
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+}
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+
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+ARCH_DEF(sw_64)
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+
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+const struct arch_def arch_def_sw_64 = {
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+ .token = SCMP_ARCH_SW_64,
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+ .token_bpf = AUDIT_ARCH_SW_64,
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+ .size = ARCH_SIZE_32,
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+ .endian = ARCH_ENDIAN_LITTLE,
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+ .syscall_resolve_name = sw_64_syscall_resolve_name_munge,
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+ .syscall_resolve_name_raw = sw_64_syscall_resolve_name,
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+ .syscall_resolve_num = sw_64_syscall_resolve_num_munge,
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+ .syscall_resolve_num_raw = sw_64_syscall_resolve_num,
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+ .syscall_rewrite = NULL,
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+ .rule_add = NULL,
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+};
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diff --git a/src/arch-sw_64.h b/src/arch-sw_64.h
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new file mode 100644
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index 0000000..5329ab3
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--- /dev/null
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+++ b/src/arch-sw_64.h
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@@ -0,0 +1,28 @@
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+/**
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+ * Enhanced Seccomp ARM Specific Code
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+ *
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+ * Copyright (c) 2013 Red Hat <pmoore@redhat.com>
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+ * Author: Paul Moore <paul@paul-moore.com>
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+ */
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+
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+/*
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+ * This library is free software; you can redistribute it and/or modify it
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+ * under the terms of version 2.1 of the GNU Lesser General Public License as
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+ * published by the Free Software Foundation.
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+ *
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+ * This library is distributed in the hope that it will be useful, but WITHOUT
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+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
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+ * for more details.
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+ *
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+ * You should have received a copy of the GNU Lesser General Public License
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+ * along with this library; if not, see <http://www.gnu.org/licenses>.
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+ */
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+
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+#ifndef _ARCH_SW_64_H
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+#define _ARCH_SW_64_H
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+
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+#include "arch.h"
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+ARCH_DECL(sw_64)
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+
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+#endif
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--
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2.27.0
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