Line data Source code
1 : /* THIS FILE WAS GENERATED BY generate_filters.py. DO NOT EDIT BY HAND! */
2 : #ifndef HEADER_fd_src_disco_net_sock_generated_fd_sock_tile_seccomp_h
3 : #define HEADER_fd_src_disco_net_sock_generated_fd_sock_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 : static const unsigned int sock_filter_policy_fd_sock_tile_instr_cnt = 33;
28 :
29 0 : static void populate_sock_filter_policy_fd_sock_tile( ulong out_cnt, struct sock_filter * out, uint logfile_fd, uint tx_fd, uint rx_fd0, uint rx_fd1 ) {
30 0 : FD_TEST( out_cnt >= 33 );
31 0 : struct sock_filter filter[33] = {
32 : /* Check: Jump to RET_KILL_PROCESS if the script's arch != the runtime arch */
33 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, ( offsetof( struct seccomp_data, arch ) ) ),
34 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, ARCH_NR, 0, /* RET_KILL_PROCESS */ 29 ),
35 : /* loading syscall number in accumulator */
36 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, ( offsetof( struct seccomp_data, nr ) ) ),
37 : /* simply allow ppoll */
38 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_ppoll, /* RET_ALLOW */ 28, 0 ),
39 : /* allow recvmmsg based on expression */
40 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_recvmmsg, /* check_recvmmsg */ 4, 0 ),
41 : /* allow sendmmsg based on expression */
42 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_sendmmsg, /* check_sendmmsg */ 13, 0 ),
43 : /* allow write based on expression */
44 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_write, /* check_write */ 18, 0 ),
45 : /* allow fsync based on expression */
46 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, SYS_fsync, /* check_fsync */ 21, 0 ),
47 : /* none of the syscalls matched */
48 0 : { BPF_JMP | BPF_JA, 0, 0, /* RET_KILL_PROCESS */ 22 },
49 : // check_recvmmsg:
50 : /* load syscall argument 0 in accumulator */
51 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, offsetof(struct seccomp_data, args[0])),
52 0 : BPF_JUMP( BPF_JMP | BPF_JGE | BPF_K, rx_fd0, /* lbl_2 */ 0, /* RET_KILL_PROCESS */ 20 ),
53 : // lbl_2:
54 : /* load syscall argument 0 in accumulator */
55 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, offsetof(struct seccomp_data, args[0])),
56 0 : BPF_JUMP( BPF_JMP | BPF_JGE | BPF_K, rx_fd1, /* RET_KILL_PROCESS */ 18, /* lbl_1 */ 0 ),
57 : // lbl_1:
58 : /* load syscall argument 2 in accumulator */
59 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, offsetof(struct seccomp_data, args[2])),
60 0 : BPF_JUMP( BPF_JMP | BPF_JGT | BPF_K, 64, /* RET_KILL_PROCESS */ 16, /* lbl_3 */ 0 ),
61 : // lbl_3:
62 : /* load syscall argument 3 in accumulator */
63 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, offsetof(struct seccomp_data, args[3])),
64 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, MSG_DONTWAIT, /* lbl_4 */ 0, /* RET_KILL_PROCESS */ 14 ),
65 : // lbl_4:
66 : /* load syscall argument 4 in accumulator */
67 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, offsetof(struct seccomp_data, args[4])),
68 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, 0, /* RET_ALLOW */ 13, /* RET_KILL_PROCESS */ 12 ),
69 : // check_sendmmsg:
70 : /* load syscall argument 0 in accumulator */
71 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, offsetof(struct seccomp_data, args[0])),
72 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, tx_fd, /* lbl_5 */ 0, /* RET_KILL_PROCESS */ 10 ),
73 : // lbl_5:
74 : /* load syscall argument 2 in accumulator */
75 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, offsetof(struct seccomp_data, args[2])),
76 0 : BPF_JUMP( BPF_JMP | BPF_JGT | BPF_K, 64, /* RET_KILL_PROCESS */ 8, /* lbl_6 */ 0 ),
77 : // lbl_6:
78 : /* load syscall argument 3 in accumulator */
79 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, offsetof(struct seccomp_data, args[3])),
80 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, MSG_DONTWAIT, /* RET_ALLOW */ 7, /* RET_KILL_PROCESS */ 6 ),
81 : // check_write:
82 : /* load syscall argument 0 in accumulator */
83 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, offsetof(struct seccomp_data, args[0])),
84 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, 2, /* RET_ALLOW */ 5, /* lbl_7 */ 0 ),
85 : // lbl_7:
86 : /* load syscall argument 0 in accumulator */
87 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, offsetof(struct seccomp_data, args[0])),
88 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, logfile_fd, /* RET_ALLOW */ 3, /* RET_KILL_PROCESS */ 2 ),
89 : // check_fsync:
90 : /* load syscall argument 0 in accumulator */
91 0 : BPF_STMT( BPF_LD | BPF_W | BPF_ABS, offsetof(struct seccomp_data, args[0])),
92 0 : BPF_JUMP( BPF_JMP | BPF_JEQ | BPF_K, logfile_fd, /* RET_ALLOW */ 1, /* RET_KILL_PROCESS */ 0 ),
93 : // RET_KILL_PROCESS:
94 : /* KILL_PROCESS is placed before ALLOW since it's the fallthrough case. */
95 0 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_KILL_PROCESS ),
96 : // RET_ALLOW:
97 : /* ALLOW has to be reached by jumping */
98 : BPF_STMT( BPF_RET | BPF_K, SECCOMP_RET_ALLOW ),
99 0 : };
100 0 : fd_memcpy( out, filter, sizeof( filter ) );
101 0 : }
102 :
103 : #endif /* defined(__linux__) */
104 :
105 : #endif /* HEADER_fd_src_disco_net_sock_generated_fd_sock_tile_seccomp_h */
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