Line data Source code
1 : /* THIS FILE WAS GENERATED BY generate_filters.py. DO NOT EDIT BY HAND! */
2 : #ifndef HEADER_fd_src_disco_diag_generated_fd_diag_tile_seccomp_h
3 : #define HEADER_fd_src_disco_diag_generated_fd_diag_tile_seccomp_h
4 :
5 : #if defined(__linux__)
6 :
7 : #include "../../../../src/util/fd_util_base.h"
8 : #include <linux/audit.h>
9 : #include <linux/capability.h>
10 : #include <linux/filter.h>
11 : #include <linux/seccomp.h>
12 : #include <linux/bpf.h>
13 : #include <linux/unistd.h>
14 : #include <sys/syscall.h>
15 : #include <signal.h>
16 : #include <stddef.h>
17 :
18 : #if defined(__i386__)
19 : # define ARCH_NR AUDIT_ARCH_I386
20 : #elif defined(__x86_64__)
21 : # define ARCH_NR AUDIT_ARCH_X86_64
22 : #elif defined(__aarch64__)
23 : # define ARCH_NR AUDIT_ARCH_AARCH64
24 : #else
25 : # error "Target architecture is unsupported by seccomp."
26 : #endif
27 :
28 : #define FD_SECCOMP_ARG_LO_OFFSET(argno) ( offsetof( struct seccomp_data, args[(argno)] ) )
29 : #define FD_SECCOMP_ARG_HI_OFFSET(argno) ( offsetof( struct seccomp_data, args[(argno)] ) + 4U )
30 :
31 : #define FD_SECCOMP_ARG_LO(x) ((uint)(((ulong)(uint)(int)(x) ) & 0xffffffffUL))
32 : #define FD_SECCOMP_ARG_HI(x) ((uint)(((ulong)(x) >> 32) & 0xffffffffUL))
33 :
34 : static const uint sock_filter_policy_fd_diag_tile_instr_cnt = 58;
35 :
36 0 : static void populate_sock_filter_policy_fd_diag_tile( ulong out_cnt, struct sock_filter out[ static 58 ], uint logfile_fd ) {
37 0 : FD_TEST( out_cnt >= 58 );
38 0 : struct sock_filter filter[58] = {
39 : /* validate architecture */
40 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, ( offsetof( struct seccomp_data, arch ) )),
41 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, ARCH_NR, 0, /* RET_KILL_PROCESS */ 8 ),
42 : /* load syscall number */
43 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, ( offsetof( struct seccomp_data, nr ) )),
44 : /* check write */
45 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_write, /* check_write */ 8, 0 ),
46 : /* check fsync */
47 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_fsync, /* check_fsync */ 13, 0 ),
48 : /* check lseek */
49 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_lseek, /* check_lseek */ 16, 0 ),
50 : /* check read */
51 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_read, /* check_read */ 27, 0 ),
52 : /* check fstat */
53 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_fstat, /* check_fstat */ 32, 0 ),
54 : /* check fstatfs */
55 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_fstatfs, /* check_fstatfs */ 35, 0 ),
56 : /* check clock_nanosleep */
57 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_clock_nanosleep, /* check_clock_nanosleep */ 38, 0 ),
58 : // RET_KILL_PROCESS:
59 : /* default deny */
60 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_KILL_PROCESS ),
61 : // RET_ALLOW:
62 : /* allow */
63 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_ALLOW ),
64 : // check_write:
65 : /* arg 0 low 32 bits */
66 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, FD_SECCOMP_ARG_LO_OFFSET(0)),
67 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, 0x00000002U, /* write_ALLOW */ 3, /* or_1 */ 0 ),
68 : // or_1:
69 : /* arg 0 low 32 bits */
70 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, FD_SECCOMP_ARG_LO_OFFSET(0)),
71 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, ((uint)(logfile_fd)), /* write_ALLOW */ 1, /* write_KILL */ 0 ),
72 : // write_KILL:
73 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_KILL_PROCESS ),
74 : // write_ALLOW:
75 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_ALLOW ),
76 : // check_fsync:
77 : /* arg 0 low 32 bits */
78 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, FD_SECCOMP_ARG_LO_OFFSET(0)),
79 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, ((uint)(logfile_fd)), /* fsync_ALLOW */ 1, /* fsync_KILL */ 0 ),
80 : // fsync_KILL:
81 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_KILL_PROCESS ),
82 : // fsync_ALLOW:
83 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_ALLOW ),
84 : // check_lseek:
85 : /* arg 0 low 32 bits */
86 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, FD_SECCOMP_ARG_LO_OFFSET(0)),
87 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, 0x00000002U, /* lseek_KILL */ 8, /* or_3 */ 0 ),
88 : // or_3:
89 : /* arg 0 low 32 bits */
90 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, FD_SECCOMP_ARG_LO_OFFSET(0)),
91 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, ((uint)(logfile_fd)), /* lseek_KILL */ 6, /* and_2 */ 0 ),
92 : // and_2:
93 : /* arg 1 high 32 bits */
94 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, FD_SECCOMP_ARG_HI_OFFSET(1)),
95 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, 0x00000000U, /* arg_hi_eq_5 */ 0, /* lseek_KILL */ 4 ),
96 : // arg_hi_eq_5:
97 : /* arg 1 low 32 bits */
98 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, FD_SECCOMP_ARG_LO_OFFSET(1)),
99 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, 0x00000000U, /* and_4 */ 0, /* lseek_KILL */ 2 ),
100 : // and_4:
101 : /* arg 2 low 32 bits */
102 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, FD_SECCOMP_ARG_LO_OFFSET(2)),
103 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, FD_SECCOMP_ARG_LO(SEEK_SET), /* lseek_ALLOW */ 1, /* lseek_KILL */ 0 ),
104 : // lseek_KILL:
105 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_KILL_PROCESS ),
106 : // lseek_ALLOW:
107 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_ALLOW ),
108 : // check_read:
109 : /* arg 0 low 32 bits */
110 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, FD_SECCOMP_ARG_LO_OFFSET(0)),
111 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, 0x00000002U, /* read_KILL */ 2, /* or_6 */ 0 ),
112 : // or_6:
113 : /* arg 0 low 32 bits */
114 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, FD_SECCOMP_ARG_LO_OFFSET(0)),
115 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, ((uint)(logfile_fd)), /* read_KILL */ 0, /* read_ALLOW */ 1 ),
116 : // read_KILL:
117 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_KILL_PROCESS ),
118 : // read_ALLOW:
119 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_ALLOW ),
120 : // check_fstat:
121 : /* arg 0 low 32 bits */
122 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, FD_SECCOMP_ARG_LO_OFFSET(0)),
123 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, 0x00000002U, /* fstat_KILL */ 0, /* fstat_ALLOW */ 1 ),
124 : // fstat_KILL:
125 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_KILL_PROCESS ),
126 : // fstat_ALLOW:
127 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_ALLOW ),
128 : // check_fstatfs:
129 : /* arg 0 low 32 bits */
130 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, FD_SECCOMP_ARG_LO_OFFSET(0)),
131 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, 0x00000002U, /* fstatfs_KILL */ 0, /* fstatfs_ALLOW */ 1 ),
132 : // fstatfs_KILL:
133 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_KILL_PROCESS ),
134 : // fstatfs_ALLOW:
135 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_ALLOW ),
136 : // check_clock_nanosleep:
137 : /* arg 0 low 32 bits */
138 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, FD_SECCOMP_ARG_LO_OFFSET(0)),
139 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, FD_SECCOMP_ARG_LO(CLOCK_REALTIME), /* and_7 */ 0, /* clock_nanosleep_KILL */ 6 ),
140 : // and_7:
141 : /* arg 1 low 32 bits */
142 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, FD_SECCOMP_ARG_LO_OFFSET(1)),
143 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, 0x00000000U, /* and_8 */ 0, /* clock_nanosleep_KILL */ 4 ),
144 : // and_8:
145 : /* arg 3 high 32 bits */
146 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, FD_SECCOMP_ARG_HI_OFFSET(3)),
147 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, 0x00000000U, /* arg_hi_eq_9 */ 0, /* clock_nanosleep_KILL */ 2 ),
148 : // arg_hi_eq_9:
149 : /* arg 3 low 32 bits */
150 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, FD_SECCOMP_ARG_LO_OFFSET(3)),
151 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, 0x00000000U, /* clock_nanosleep_ALLOW */ 1, /* clock_nanosleep_KILL */ 0 ),
152 : // clock_nanosleep_KILL:
153 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_KILL_PROCESS ),
154 : // clock_nanosleep_ALLOW:
155 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_ALLOW ),
156 0 : };
157 0 : fd_memcpy( out, filter, sizeof( filter ) );
158 0 : }
159 :
160 : #endif /* defined(__linux__) */
161 :
162 : #endif /* HEADER_fd_src_disco_diag_generated_fd_diag_tile_seccomp_h */
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