Line data Source code
1 : /* THIS FILE WAS GENERATED BY generate_filters.py. DO NOT EDIT BY HAND! */
2 : #ifndef HEADER_fd_src_discof_failover_generated_fd_failover_tile_seccomp_h
3 : #define HEADER_fd_src_discof_failover_generated_fd_failover_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 : #elif defined(__riscv) && __riscv_xlen == 64
25 : # define ARCH_NR AUDIT_ARCH_RISCV64
26 : #else
27 : # error "Target architecture is unsupported by seccomp."
28 : #endif
29 :
30 : #define FD_SECCOMP_ARG_LO_OFFSET(argno) ( offsetof( struct seccomp_data, args[(argno)] ) )
31 : #define FD_SECCOMP_ARG_HI_OFFSET(argno) ( offsetof( struct seccomp_data, args[(argno)] ) + 4U )
32 :
33 : #define FD_SECCOMP_ARG_LO(x) ((uint)(((ulong)(uint)(int)(x) ) & 0xffffffffUL))
34 : #define FD_SECCOMP_ARG_HI(x) ((uint)(((ulong)(x) >> 32) & 0xffffffffUL))
35 :
36 : static const uint sock_filter_policy_fd_failover_tile_instr_cnt = 63;
37 :
38 0 : static void populate_sock_filter_policy_fd_failover_tile( ulong out_cnt, struct sock_filter out[ static 63 ], uint logfile_fd, uint listen_fd ) {
39 0 : FD_TEST( out_cnt >= 63 );
40 0 : struct sock_filter filter[63] = {
41 : /* validate architecture */
42 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, ( offsetof( struct seccomp_data, arch ) )),
43 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, ARCH_NR, 0, /* RET_KILL_PROCESS */ 13 ),
44 : /* load syscall number */
45 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, ( offsetof( struct seccomp_data, nr ) )),
46 : /* check write */
47 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_write, /* check_write */ 13, 0 ),
48 : /* check fsync */
49 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_fsync, /* check_fsync */ 18, 0 ),
50 : /* check futex */
51 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_futex, /* check_futex */ 21, 0 ),
52 : /* allow restart_syscall */
53 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_restart_syscall, /* RET_ALLOW */ 9, 0 ),
54 : /* allow getrandom */
55 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_getrandom, /* RET_ALLOW */ 8, 0 ),
56 : /* check socket */
57 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_socket, /* check_socket */ 24, 0 ),
58 : /* allow connect */
59 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_connect, /* RET_ALLOW */ 6, 0 ),
60 : /* check setsockopt */
61 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_setsockopt, /* check_setsockopt */ 30, 0 ),
62 : /* check accept4 */
63 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_accept4, /* check_accept4 */ 37, 0 ),
64 : /* allow recvfrom */
65 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_recvfrom, /* RET_ALLOW */ 3, 0 ),
66 : /* allow sendto */
67 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_sendto, /* RET_ALLOW */ 2, 0 ),
68 : /* check close */
69 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_close, /* check_close */ 40, 0 ),
70 : // RET_KILL_PROCESS:
71 : /* default deny */
72 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_KILL_PROCESS ),
73 : // RET_ALLOW:
74 : /* allow */
75 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_ALLOW ),
76 : // check_write:
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, 0x00000002U, /* write_ALLOW */ 3, /* or_1 */ 0 ),
80 : // or_1:
81 : /* arg 0 low 32 bits */
82 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, FD_SECCOMP_ARG_LO_OFFSET(0)),
83 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, ((uint)(logfile_fd)), /* write_ALLOW */ 1, /* write_KILL */ 0 ),
84 : // write_KILL:
85 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_KILL_PROCESS ),
86 : // write_ALLOW:
87 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_ALLOW ),
88 : // check_fsync:
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)), /* fsync_ALLOW */ 1, /* fsync_KILL */ 0 ),
92 : // fsync_KILL:
93 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_KILL_PROCESS ),
94 : // fsync_ALLOW:
95 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_ALLOW ),
96 : // check_futex:
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, FD_SECCOMP_ARG_LO(FUTEX_WAIT_BITSET), /* and_2 */ 0, /* futex_KILL */ 2 ),
100 : // and_2:
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, 0x00000000U, /* futex_ALLOW */ 1, /* futex_KILL */ 0 ),
104 : // futex_KILL:
105 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_KILL_PROCESS ),
106 : // futex_ALLOW:
107 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_ALLOW ),
108 : // check_socket:
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, FD_SECCOMP_ARG_LO(AF_INET), /* and_3 */ 0, /* socket_KILL */ 4 ),
112 : // and_3:
113 : /* arg 1 low 32 bits */
114 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, FD_SECCOMP_ARG_LO_OFFSET(1)),
115 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, FD_SECCOMP_ARG_LO(SOCK_STREAM|SOCK_NONBLOCK|SOCK_CLOEXEC), /* and_4 */ 0, /* socket_KILL */ 2 ),
116 : // and_4:
117 : /* arg 2 low 32 bits */
118 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, FD_SECCOMP_ARG_LO_OFFSET(2)),
119 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, 0x00000000U, /* socket_ALLOW */ 1, /* socket_KILL */ 0 ),
120 : // socket_KILL:
121 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_KILL_PROCESS ),
122 : // socket_ALLOW:
123 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_ALLOW ),
124 : // check_setsockopt:
125 : /* arg 1 low 32 bits */
126 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, FD_SECCOMP_ARG_LO_OFFSET(1)),
127 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, FD_SECCOMP_ARG_LO(IPPROTO_TCP), /* and_5 */ 0, /* setsockopt_KILL */ 4 ),
128 : // and_5:
129 : /* arg 2 low 32 bits */
130 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, FD_SECCOMP_ARG_LO_OFFSET(2)),
131 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, FD_SECCOMP_ARG_LO(TCP_NODELAY), /* setsockopt_ALLOW */ 3, /* or_6 */ 0 ),
132 : // or_6:
133 : /* arg 2 low 32 bits */
134 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, FD_SECCOMP_ARG_LO_OFFSET(2)),
135 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, FD_SECCOMP_ARG_LO(TCP_DEFER_ACCEPT), /* setsockopt_ALLOW */ 1, /* setsockopt_KILL */ 0 ),
136 : // setsockopt_KILL:
137 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_KILL_PROCESS ),
138 : // setsockopt_ALLOW:
139 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_ALLOW ),
140 : // check_accept4:
141 : /* arg 0 low 32 bits */
142 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, FD_SECCOMP_ARG_LO_OFFSET(0)),
143 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, ((uint)(listen_fd)), /* and_7 */ 0, /* accept4_KILL */ 2 ),
144 : // and_7:
145 : /* arg 3 low 32 bits */
146 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, FD_SECCOMP_ARG_LO_OFFSET(3)),
147 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, FD_SECCOMP_ARG_LO(SOCK_NONBLOCK|SOCK_CLOEXEC), /* accept4_ALLOW */ 1, /* accept4_KILL */ 0 ),
148 : // accept4_KILL:
149 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_KILL_PROCESS ),
150 : // accept4_ALLOW:
151 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_ALLOW ),
152 : // check_close:
153 : /* arg 0 low 32 bits */
154 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, FD_SECCOMP_ARG_LO_OFFSET(0)),
155 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, 0x00000002U, /* close_KILL */ 4, /* or_8 */ 0 ),
156 : // or_8:
157 : /* arg 0 low 32 bits */
158 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, FD_SECCOMP_ARG_LO_OFFSET(0)),
159 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, ((uint)(logfile_fd)), /* close_KILL */ 2, /* or_9 */ 0 ),
160 : // or_9:
161 : /* arg 0 low 32 bits */
162 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, FD_SECCOMP_ARG_LO_OFFSET(0)),
163 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, ((uint)(listen_fd)), /* close_KILL */ 0, /* close_ALLOW */ 1 ),
164 : // close_KILL:
165 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_KILL_PROCESS ),
166 : // close_ALLOW:
167 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_ALLOW ),
168 0 : };
169 0 : fd_memcpy( out, filter, sizeof( filter ) );
170 0 : }
171 :
172 : #endif /* defined(__linux__) */
173 :
174 : #endif /* HEADER_fd_src_discof_failover_generated_fd_failover_tile_seccomp_h */
|
