1 From 3b78843ee18a3099196a61c7d07c0e2d24d1fe84 Mon Sep 17 00:00:00 2001
2 From: vishalbiswas <vshlbiswas@ymail.com>
3 Date: Tue, 17 Jan 2017 10:10:23 +0530
4 Subject: [PATCH] syscall: Add clone
6 Signed-off-by: vishalbiswas <vshlbiswas@ymail.com>
8 src/common/compat.h | 4 ++++
9 src/lib/syscall.c | 21 +++++++++++++++++++++
10 2 files changed, 25 insertions(+)
12 diff --git a/src/common/compat.h b/src/common/compat.h
13 index f490113..bf42f07 100644
14 --- a/src/common/compat.h
15 +++ b/src/common/compat.h
16 @@ -126,6 +126,9 @@ void tsocks_once(tsocks_once_t *o, void (*init_routine)(void));
21 +#define __NR_clone -19
24 #define TSOCKS_NR_SOCKET __NR_socket
25 #define TSOCKS_NR_CONNECT __NR_connect
26 @@ -145,6 +148,7 @@ void tsocks_once(tsocks_once_t *o, void (*init_routine)(void));
27 #define TSOCKS_NR_GETTIMEOFDAY __NR_gettimeofday
28 #define TSOCKS_NR_CLOCK_GETTIME __NR_clock_gettime
29 #define TSOCKS_NR_FORK __NR_fork
30 +#define TSOCKS_NR_CLONE __NR_clone
33 * Despite glibc providing wrappers for these calls for a long time
34 diff --git a/src/lib/syscall.c b/src/lib/syscall.c
35 index d0fdaaa..c8a9b46 100644
36 --- a/src/lib/syscall.c
37 +++ b/src/lib/syscall.c
38 @@ -423,6 +423,24 @@ static LIBC_SYSCALL_RET_TYPE handle_fork(void)
40 return tsocks_libc_syscall(TSOCKS_NR_FORK);
44 + * * Handle clone(2) syscall.
46 +static LIBC_SYSCALL_RET_TYPE handle_clone(va_list args)
53 + fn = va_arg(args, __typeof__(fn));
54 + child_stack = va_arg(args, __typeof__(child_stack));
55 + flags = va_arg(args, __typeof__(flags));
56 + arg = va_arg(args, __typeof__(arg));
58 + return tsocks_libc_syscall(TSOCKS_NR_CLONE, fn, child_stack, flags, arg);
60 #endif /* __linux__ */
63 @@ -541,6 +559,9 @@ LIBC_SYSCALL_RET_TYPE tsocks_syscall(long int number, va_list args)
67 + case TSOCKS_NR_CLONE:
68 + ret = handle_clone(args);
70 #endif /* __linux__ */