Line data Source code
1 : /* THIS FILE WAS GENERATED BY generate_filters.py. DO NOT EDIT BY HAND! */
2 : #ifndef HEADER_fd_src_discof_backup_generated_fd_snaprd_tile_seccomp_h
3 : #define HEADER_fd_src_discof_backup_generated_fd_snaprd_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_snaprd_tile_instr_cnt = 40;
37 :
38 0 : static void populate_sock_filter_policy_fd_snaprd_tile( ulong out_cnt, struct sock_filter out[ static 40 ], uint logfile_fd, uint accounts_fd ) {
39 0 : FD_TEST( out_cnt >= 40 );
40 0 : struct sock_filter filter[40] = {
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 */ 8 ),
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 */ 8, 0 ),
48 : /* check fsync */
49 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_fsync, /* check_fsync */ 13, 0 ),
50 : /* check pread64 */
51 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_pread64, /* check_pread64 */ 16, 0 ),
52 : /* check clock_nanosleep */
53 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_clock_nanosleep, /* check_clock_nanosleep */ 19, 0 ),
54 : /* check exit */
55 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_exit, /* check_exit */ 22, 0 ),
56 : /* check futex */
57 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_futex, /* check_futex */ 25, 0 ),
58 : /* allow restart_syscall */
59 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_restart_syscall, /* RET_ALLOW */ 1, 0 ),
60 : // RET_KILL_PROCESS:
61 : /* default deny */
62 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_KILL_PROCESS ),
63 : // RET_ALLOW:
64 : /* allow */
65 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_ALLOW ),
66 : // check_write:
67 : /* arg 0 low 32 bits */
68 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, FD_SECCOMP_ARG_LO_OFFSET(0)),
69 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, 0x00000002U, /* write_ALLOW */ 3, /* or_1 */ 0 ),
70 : // or_1:
71 : /* arg 0 low 32 bits */
72 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, FD_SECCOMP_ARG_LO_OFFSET(0)),
73 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, ((uint)(logfile_fd)), /* write_ALLOW */ 1, /* write_KILL */ 0 ),
74 : // write_KILL:
75 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_KILL_PROCESS ),
76 : // write_ALLOW:
77 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_ALLOW ),
78 : // check_fsync:
79 : /* arg 0 low 32 bits */
80 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, FD_SECCOMP_ARG_LO_OFFSET(0)),
81 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, ((uint)(logfile_fd)), /* fsync_ALLOW */ 1, /* fsync_KILL */ 0 ),
82 : // fsync_KILL:
83 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_KILL_PROCESS ),
84 : // fsync_ALLOW:
85 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_ALLOW ),
86 : // check_pread64:
87 : /* arg 0 low 32 bits */
88 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, FD_SECCOMP_ARG_LO_OFFSET(0)),
89 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, ((uint)(accounts_fd)), /* pread64_ALLOW */ 1, /* pread64_KILL */ 0 ),
90 : // pread64_KILL:
91 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_KILL_PROCESS ),
92 : // pread64_ALLOW:
93 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_ALLOW ),
94 : // check_clock_nanosleep:
95 : /* arg 0 low 32 bits */
96 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, FD_SECCOMP_ARG_LO_OFFSET(0)),
97 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, FD_SECCOMP_ARG_LO(CLOCK_REALTIME), /* clock_nanosleep_ALLOW */ 1, /* clock_nanosleep_KILL */ 0 ),
98 : // clock_nanosleep_KILL:
99 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_KILL_PROCESS ),
100 : // clock_nanosleep_ALLOW:
101 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_ALLOW ),
102 : // check_exit:
103 : /* arg 0 low 32 bits */
104 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, FD_SECCOMP_ARG_LO_OFFSET(0)),
105 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, 0x00000000U, /* exit_ALLOW */ 1, /* exit_KILL */ 0 ),
106 : // exit_KILL:
107 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_KILL_PROCESS ),
108 : // exit_ALLOW:
109 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_ALLOW ),
110 : // check_futex:
111 : /* arg 1 low 32 bits */
112 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, FD_SECCOMP_ARG_LO_OFFSET(1)),
113 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, FD_SECCOMP_ARG_LO(FUTEX_WAIT_BITSET), /* and_2 */ 0, /* futex_KILL */ 2 ),
114 : // and_2:
115 : /* arg 2 low 32 bits */
116 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, FD_SECCOMP_ARG_LO_OFFSET(2)),
117 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, 0x00000000U, /* futex_ALLOW */ 1, /* futex_KILL */ 0 ),
118 : // futex_KILL:
119 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_KILL_PROCESS ),
120 : // futex_ALLOW:
121 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_ALLOW ),
122 0 : };
123 0 : fd_memcpy( out, filter, sizeof( filter ) );
124 0 : }
125 :
126 : #endif /* defined(__linux__) */
127 :
128 : #endif /* HEADER_fd_src_discof_backup_generated_fd_snaprd_tile_seccomp_h */
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