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From 3b78843ee18a3099196a61c7d07c0e2d24d1fe84 Mon Sep 17 00:00:00 2001
From: vishalbiswas <vshlbiswas@ymail.com>
Date: Tue, 17 Jan 2017 10:10:23 +0530
Subject: [PATCH] syscall: Add clone
Signed-off-by: vishalbiswas <vshlbiswas@ymail.com>
---
src/common/compat.h | 4 ++++
src/lib/syscall.c | 21 +++++++++++++++++++++
2 files changed, 25 insertions(+)
diff --git a/src/common/compat.h b/src/common/compat.h
index f490113..bf42f07 100644
--- a/src/common/compat.h
+++ b/src/common/compat.h
@@ -126,6 +126,9 @@ void tsocks_once(tsocks_once_t *o, void (*init_routine)(void));
#ifndef __NR_fork
#define __NR_fork -18
#endif
+#ifndef __NR_clone
+#define __NR_clone -19
+#endif
#define TSOCKS_NR_SOCKET __NR_socket
#define TSOCKS_NR_CONNECT __NR_connect
@@ -145,6 +148,7 @@ void tsocks_once(tsocks_once_t *o, void (*init_routine)(void));
#define TSOCKS_NR_GETTIMEOFDAY __NR_gettimeofday
#define TSOCKS_NR_CLOCK_GETTIME __NR_clock_gettime
#define TSOCKS_NR_FORK __NR_fork
+#define TSOCKS_NR_CLONE __NR_clone
/*
* Despite glibc providing wrappers for these calls for a long time
diff --git a/src/lib/syscall.c b/src/lib/syscall.c
index d0fdaaa..c8a9b46 100644
--- a/src/lib/syscall.c
+++ b/src/lib/syscall.c
@@ -423,6 +423,24 @@ static LIBC_SYSCALL_RET_TYPE handle_fork(void)
{
return tsocks_libc_syscall(TSOCKS_NR_FORK);
}
+
+/*
+ * * Handle clone(2) syscall.
+ * */
+static LIBC_SYSCALL_RET_TYPE handle_clone(va_list args)
+{
+ int (*fn)(void*);
+ void* child_stack;
+ int flags;
+ void* arg;
+
+ fn = va_arg(args, __typeof__(fn));
+ child_stack = va_arg(args, __typeof__(child_stack));
+ flags = va_arg(args, __typeof__(flags));
+ arg = va_arg(args, __typeof__(arg));
+
+ return tsocks_libc_syscall(TSOCKS_NR_CLONE, fn, child_stack, flags, arg);
+}
#endif /* __linux__ */
/*
@@ -541,6 +559,9 @@ LIBC_SYSCALL_RET_TYPE tsocks_syscall(long int number, va_list args)
case TSOCKS_NR_FORK:
ret = handle_fork();
break;
+ case TSOCKS_NR_CLONE:
+ ret = handle_clone(args);
+ break;
#endif /* __linux__ */
default:
/*
--
2.11.0