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