Line data Source code
1 : /* THIS FILE WAS GENERATED BY generate_filters.py. DO NOT EDIT BY HAND! */
2 : #ifndef HEADER_fd_src_disco_plugin_generated_fd_bundle_tile_seccomp_h
3 : #define HEADER_fd_src_disco_plugin_generated_fd_bundle_tile_seccomp_h
4 :
5 : #include "../../../../src/util/fd_util_base.h"
6 : #include <linux/audit.h>
7 : #include <linux/capability.h>
8 : #include <linux/filter.h>
9 : #include <linux/seccomp.h>
10 : #include <linux/bpf.h>
11 : #include <sys/syscall.h>
12 : #include <signal.h>
13 : #include <stddef.h>
14 :
15 : #if defined(__i386__)
16 : # define ARCH_NR AUDIT_ARCH_I386
17 : #elif defined(__x86_64__)
18 : # define ARCH_NR AUDIT_ARCH_X86_64
19 : #elif defined(__aarch64__)
20 : # define ARCH_NR AUDIT_ARCH_AARCH64
21 : #else
22 : # error "Target architecture is unsupported by seccomp."
23 : #endif
24 : static const unsigned int sock_filter_policy_fd_bundle_tile_instr_cnt = 77;
25 :
26 0 : static void populate_sock_filter_policy_fd_bundle_tile( ulong out_cnt, struct sock_filter * out, unsigned int logfile_fd) {
27 0 : FD_TEST( out_cnt >= 77 );
28 0 : struct sock_filter filter[77] = {
29 : /* Check: Jump to RET_KILL_PROCESS if the script's arch != the runtime arch */
30 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, ( offsetof( struct seccomp_data, arch ) ) ),
31 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, ARCH_NR, 0, /* RET_KILL_PROCESS */ 73 ),
32 : /* loading syscall number in accumulator */
33 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, ( offsetof( struct seccomp_data, nr ) ) ),
34 : /* allow fsync based on expression */
35 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_fsync, /* check_fsync */ 25, 0 ),
36 : /* simply allow getrandom */
37 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_getrandom, /* RET_ALLOW */ 71, 0 ),
38 : /* allow epoll_create1 based on expression */
39 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_epoll_create1, /* check_epoll_create1 */ 25, 0 ),
40 : /* allow eventfd2 based on expression */
41 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_eventfd2, /* check_eventfd2 */ 26, 0 ),
42 : /* simply allow epoll_ctl */
43 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_epoll_ctl, /* RET_ALLOW */ 68, 0 ),
44 : /* simply allow epoll_wait */
45 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_epoll_wait, /* RET_ALLOW */ 67, 0 ),
46 : /* allow socket based on expression */
47 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_socket, /* check_socket */ 25, 0 ),
48 : /* simply allow connect */
49 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_connect, /* RET_ALLOW */ 65, 0 ),
50 : /* allow fcntl based on expression */
51 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_fcntl, /* check_fcntl */ 29, 0 ),
52 : /* allow setsockopt based on expression */
53 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_setsockopt, /* check_setsockopt */ 36, 0 ),
54 : /* allow getsockopt based on expression */
55 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_getsockopt, /* check_getsockopt */ 47, 0 ),
56 : /* simply allow recvfrom */
57 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_recvfrom, /* RET_ALLOW */ 61, 0 ),
58 : /* simply allow sendto */
59 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_sendto, /* RET_ALLOW */ 60, 0 ),
60 : /* simply allow write */
61 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_write, /* RET_ALLOW */ 59, 0 ),
62 : /* simply allow writev */
63 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_writev, /* RET_ALLOW */ 58, 0 ),
64 : /* allow shutdown based on expression */
65 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_shutdown, /* check_shutdown */ 50, 0 ),
66 : /* simply allow close */
67 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_close, /* RET_ALLOW */ 56, 0 ),
68 : /* allow mmap based on expression */
69 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_mmap, /* check_mmap */ 50, 0 ),
70 : /* simply allow brk */
71 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_brk, /* RET_ALLOW */ 54, 0 ),
72 : /* simply allow rt_sigaction */
73 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_rt_sigaction, /* RET_ALLOW */ 53, 0 ),
74 : /* simply allow rt_sigprocmask */
75 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_rt_sigprocmask, /* RET_ALLOW */ 52, 0 ),
76 : /* simply allow getpid */
77 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_getpid, /* RET_ALLOW */ 51, 0 ),
78 : /* simply allow gettid */
79 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_gettid, /* RET_ALLOW */ 50, 0 ),
80 : /* simply allow tgkill */
81 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_tgkill, /* RET_ALLOW */ 49, 0 ),
82 : /* simply allow madvise */
83 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_madvise, /* RET_ALLOW */ 48, 0 ),
84 : /* none of the syscalls matched */
85 0 : { BPF_JMP | BPF_JA, 0, 0, /* RET_KILL_PROCESS */ 46 },
86 : // check_fsync:
87 : /* load syscall argument 0 in accumulator */
88 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, offsetof(struct seccomp_data, args[0])),
89 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, logfile_fd, /* RET_ALLOW */ 45, /* RET_KILL_PROCESS */ 44 ),
90 : // check_epoll_create1:
91 : /* load syscall argument 0 in accumulator */
92 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, offsetof(struct seccomp_data, args[0])),
93 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, EPOLL_CLOEXEC, /* RET_ALLOW */ 43, /* RET_KILL_PROCESS */ 42 ),
94 : // check_eventfd2:
95 : /* load syscall argument 1 in accumulator */
96 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, offsetof(struct seccomp_data, args[1])),
97 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, EFD_CLOEXEC|EFD_NONBLOCK, /* RET_ALLOW */ 41, /* RET_KILL_PROCESS */ 40 ),
98 : // check_socket:
99 : /* load syscall argument 0 in accumulator */
100 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, offsetof(struct seccomp_data, args[0])),
101 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, AF_INET, /* lbl_1 */ 0, /* RET_KILL_PROCESS */ 38 ),
102 : // lbl_1:
103 : /* load syscall argument 1 in accumulator */
104 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, offsetof(struct seccomp_data, args[1])),
105 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SOCK_STREAM|SOCK_CLOEXEC, /* lbl_2 */ 0, /* RET_KILL_PROCESS */ 36 ),
106 : // lbl_2:
107 : /* load syscall argument 2 in accumulator */
108 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, offsetof(struct seccomp_data, args[2])),
109 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, IPPROTO_TCP, /* RET_ALLOW */ 35, /* RET_KILL_PROCESS */ 34 ),
110 : // check_fcntl:
111 : /* load syscall argument 1 in accumulator */
112 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, offsetof(struct seccomp_data, args[1])),
113 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, F_GETFL, /* RET_ALLOW */ 33, /* lbl_3 */ 0 ),
114 : // lbl_3:
115 : /* load syscall argument 1 in accumulator */
116 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, offsetof(struct seccomp_data, args[1])),
117 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, F_SETFL, /* lbl_5 */ 0, /* lbl_4 */ 2 ),
118 : // lbl_5:
119 : /* load syscall argument 2 in accumulator */
120 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, offsetof(struct seccomp_data, args[2])),
121 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, O_RDWR|O_NONBLOCK, /* RET_ALLOW */ 29, /* lbl_4 */ 0 ),
122 : // lbl_4:
123 : /* load syscall argument 1 in accumulator */
124 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, offsetof(struct seccomp_data, args[1])),
125 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, F_DUPFD_CLOEXEC, /* RET_ALLOW */ 27, /* RET_KILL_PROCESS */ 26 ),
126 : // check_setsockopt:
127 : /* load syscall argument 1 in accumulator */
128 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, offsetof(struct seccomp_data, args[1])),
129 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SOL_SOCKET, /* lbl_7 */ 0, /* lbl_6 */ 2 ),
130 : // lbl_7:
131 : /* load syscall argument 2 in accumulator */
132 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, offsetof(struct seccomp_data, args[2])),
133 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SO_KEEPALIVE, /* RET_ALLOW */ 23, /* lbl_6 */ 0 ),
134 : // lbl_6:
135 : /* load syscall argument 1 in accumulator */
136 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, offsetof(struct seccomp_data, args[1])),
137 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SOL_TCP, /* lbl_9 */ 0, /* lbl_8 */ 2 ),
138 : // lbl_9:
139 : /* load syscall argument 2 in accumulator */
140 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, offsetof(struct seccomp_data, args[2])),
141 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, TCP_KEEPIDLE, /* RET_ALLOW */ 19, /* lbl_8 */ 0 ),
142 : // lbl_8:
143 : /* load syscall argument 1 in accumulator */
144 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, offsetof(struct seccomp_data, args[1])),
145 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SOL_TCP, /* lbl_10 */ 0, /* RET_KILL_PROCESS */ 16 ),
146 : // lbl_10:
147 : /* load syscall argument 2 in accumulator */
148 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, offsetof(struct seccomp_data, args[2])),
149 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, TCP_NODELAY, /* RET_ALLOW */ 15, /* RET_KILL_PROCESS */ 14 ),
150 : // check_getsockopt:
151 : /* load syscall argument 1 in accumulator */
152 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, offsetof(struct seccomp_data, args[1])),
153 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SOL_TCP, /* lbl_12 */ 0, /* lbl_11 */ 2 ),
154 : // lbl_12:
155 : /* load syscall argument 2 in accumulator */
156 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, offsetof(struct seccomp_data, args[2])),
157 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, TCP_NODELAY, /* RET_ALLOW */ 11, /* lbl_11 */ 0 ),
158 : // lbl_11:
159 : /* load syscall argument 1 in accumulator */
160 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, offsetof(struct seccomp_data, args[1])),
161 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SOL_SOCKET, /* lbl_13 */ 0, /* RET_KILL_PROCESS */ 8 ),
162 : // lbl_13:
163 : /* load syscall argument 2 in accumulator */
164 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, offsetof(struct seccomp_data, args[2])),
165 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SO_ERROR, /* RET_ALLOW */ 7, /* RET_KILL_PROCESS */ 6 ),
166 : // check_shutdown:
167 : /* load syscall argument 1 in accumulator */
168 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, offsetof(struct seccomp_data, args[1])),
169 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SHUT_WR, /* RET_ALLOW */ 5, /* RET_KILL_PROCESS */ 4 ),
170 : // check_mmap:
171 : /* load syscall argument 2 in accumulator */
172 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, offsetof(struct seccomp_data, args[2])),
173 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, PROT_READ|PROT_WRITE, /* RET_ALLOW */ 3, /* lbl_14 */ 0 ),
174 : // lbl_14:
175 : /* load syscall argument 2 in accumulator */
176 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, offsetof(struct seccomp_data, args[2])),
177 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, PROT_NONE, /* RET_ALLOW */ 1, /* RET_KILL_PROCESS */ 0 ),
178 : // RET_KILL_PROCESS:
179 : /* KILL_PROCESS is placed before ALLOW since it's the fallthrough case. */
180 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_KILL_PROCESS ),
181 : // RET_ALLOW:
182 : /* ALLOW has to be reached by jumping */
183 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_ALLOW ),
184 0 : };
185 0 : fd_memcpy( out, filter, sizeof( filter ) );
186 0 : }
187 :
188 : #endif
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