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Commit | Line | Data |
---|---|---|
fb47d1d9 MKL |
1 | { |
2 | "skb->sk: no NULL check", | |
3 | .insns = { | |
4 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, offsetof(struct __sk_buff, sk)), | |
5 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 0), | |
6 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
7 | BPF_EXIT_INSN(), | |
8 | }, | |
9 | .prog_type = BPF_PROG_TYPE_CGROUP_SKB, | |
10 | .result = REJECT, | |
11 | .errstr = "invalid mem access 'sock_common_or_null'", | |
12 | }, | |
13 | { | |
14 | "skb->sk: sk->family [non fullsock field]", | |
15 | .insns = { | |
16 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, offsetof(struct __sk_buff, sk)), | |
17 | BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 2), | |
18 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
19 | BPF_EXIT_INSN(), | |
20 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct bpf_sock, family)), | |
21 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
22 | BPF_EXIT_INSN(), | |
23 | }, | |
24 | .prog_type = BPF_PROG_TYPE_CGROUP_SKB, | |
25 | .result = ACCEPT, | |
26 | }, | |
27 | { | |
28 | "skb->sk: sk->type [fullsock field]", | |
29 | .insns = { | |
30 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, offsetof(struct __sk_buff, sk)), | |
31 | BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 2), | |
32 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
33 | BPF_EXIT_INSN(), | |
34 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct bpf_sock, type)), | |
35 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
36 | BPF_EXIT_INSN(), | |
37 | }, | |
38 | .prog_type = BPF_PROG_TYPE_CGROUP_SKB, | |
39 | .result = REJECT, | |
40 | .errstr = "invalid sock_common access", | |
41 | }, | |
42 | { | |
43 | "bpf_sk_fullsock(skb->sk): no !skb->sk check", | |
44 | .insns = { | |
45 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, offsetof(struct __sk_buff, sk)), | |
46 | BPF_EMIT_CALL(BPF_FUNC_sk_fullsock), | |
47 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
48 | BPF_EXIT_INSN(), | |
49 | }, | |
50 | .prog_type = BPF_PROG_TYPE_CGROUP_SKB, | |
51 | .result = REJECT, | |
52 | .errstr = "type=sock_common_or_null expected=sock_common", | |
53 | }, | |
54 | { | |
55 | "sk_fullsock(skb->sk): no NULL check on ret", | |
56 | .insns = { | |
57 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, offsetof(struct __sk_buff, sk)), | |
58 | BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 2), | |
59 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
60 | BPF_EXIT_INSN(), | |
61 | BPF_EMIT_CALL(BPF_FUNC_sk_fullsock), | |
62 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, offsetof(struct bpf_sock, type)), | |
63 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
64 | BPF_EXIT_INSN(), | |
65 | }, | |
66 | .prog_type = BPF_PROG_TYPE_CGROUP_SKB, | |
67 | .result = REJECT, | |
68 | .errstr = "invalid mem access 'sock_or_null'", | |
69 | }, | |
70 | { | |
71 | "sk_fullsock(skb->sk): sk->type [fullsock field]", | |
72 | .insns = { | |
73 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, offsetof(struct __sk_buff, sk)), | |
74 | BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 2), | |
75 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
76 | BPF_EXIT_INSN(), | |
77 | BPF_EMIT_CALL(BPF_FUNC_sk_fullsock), | |
78 | BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2), | |
79 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
80 | BPF_EXIT_INSN(), | |
81 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, offsetof(struct bpf_sock, type)), | |
82 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
83 | BPF_EXIT_INSN(), | |
84 | }, | |
85 | .prog_type = BPF_PROG_TYPE_CGROUP_SKB, | |
86 | .result = ACCEPT, | |
87 | }, | |
88 | { | |
89 | "sk_fullsock(skb->sk): sk->family [non fullsock field]", | |
90 | .insns = { | |
91 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, offsetof(struct __sk_buff, sk)), | |
92 | BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 2), | |
93 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
94 | BPF_EXIT_INSN(), | |
95 | BPF_EMIT_CALL(BPF_FUNC_sk_fullsock), | |
96 | BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), | |
97 | BPF_EXIT_INSN(), | |
98 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, offsetof(struct bpf_sock, family)), | |
99 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
100 | BPF_EXIT_INSN(), | |
101 | }, | |
102 | .prog_type = BPF_PROG_TYPE_CGROUP_SKB, | |
103 | .result = ACCEPT, | |
104 | }, | |
105 | { | |
106 | "sk_fullsock(skb->sk): sk->state [narrow load]", | |
107 | .insns = { | |
108 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, offsetof(struct __sk_buff, sk)), | |
109 | BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 2), | |
110 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
111 | BPF_EXIT_INSN(), | |
112 | BPF_EMIT_CALL(BPF_FUNC_sk_fullsock), | |
113 | BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2), | |
114 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
115 | BPF_EXIT_INSN(), | |
116 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, offsetof(struct bpf_sock, state)), | |
117 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
118 | BPF_EXIT_INSN(), | |
119 | }, | |
120 | .prog_type = BPF_PROG_TYPE_CGROUP_SKB, | |
121 | .result = ACCEPT, | |
122 | }, | |
123 | { | |
124 | "sk_fullsock(skb->sk): sk->dst_port [narrow load]", | |
125 | .insns = { | |
126 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, offsetof(struct __sk_buff, sk)), | |
127 | BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 2), | |
128 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
129 | BPF_EXIT_INSN(), | |
130 | BPF_EMIT_CALL(BPF_FUNC_sk_fullsock), | |
131 | BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2), | |
132 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
133 | BPF_EXIT_INSN(), | |
134 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_0, offsetof(struct bpf_sock, dst_port)), | |
135 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
136 | BPF_EXIT_INSN(), | |
137 | }, | |
138 | .prog_type = BPF_PROG_TYPE_CGROUP_SKB, | |
139 | .result = ACCEPT, | |
140 | }, | |
141 | { | |
142 | "sk_fullsock(skb->sk): sk->dst_port [load 2nd byte]", | |
143 | .insns = { | |
144 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, offsetof(struct __sk_buff, sk)), | |
145 | BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 2), | |
146 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
147 | BPF_EXIT_INSN(), | |
148 | BPF_EMIT_CALL(BPF_FUNC_sk_fullsock), | |
149 | BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2), | |
150 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
151 | BPF_EXIT_INSN(), | |
152 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, offsetof(struct bpf_sock, dst_port) + 1), | |
153 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
154 | BPF_EXIT_INSN(), | |
155 | }, | |
156 | .prog_type = BPF_PROG_TYPE_CGROUP_SKB, | |
157 | .result = REJECT, | |
158 | .errstr = "invalid sock access", | |
159 | }, | |
160 | { | |
161 | "sk_fullsock(skb->sk): sk->dst_ip6 [load 2nd byte]", | |
162 | .insns = { | |
163 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, offsetof(struct __sk_buff, sk)), | |
164 | BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 2), | |
165 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
166 | BPF_EXIT_INSN(), | |
167 | BPF_EMIT_CALL(BPF_FUNC_sk_fullsock), | |
168 | BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2), | |
169 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
170 | BPF_EXIT_INSN(), | |
171 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, offsetof(struct bpf_sock, dst_ip6[0]) + 1), | |
172 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
173 | BPF_EXIT_INSN(), | |
174 | }, | |
175 | .prog_type = BPF_PROG_TYPE_CGROUP_SKB, | |
176 | .result = ACCEPT, | |
177 | }, | |
178 | { | |
179 | "sk_fullsock(skb->sk): sk->type [narrow load]", | |
180 | .insns = { | |
181 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, offsetof(struct __sk_buff, sk)), | |
182 | BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 2), | |
183 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
184 | BPF_EXIT_INSN(), | |
185 | BPF_EMIT_CALL(BPF_FUNC_sk_fullsock), | |
186 | BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2), | |
187 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
188 | BPF_EXIT_INSN(), | |
189 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, offsetof(struct bpf_sock, type)), | |
190 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
191 | BPF_EXIT_INSN(), | |
192 | }, | |
193 | .prog_type = BPF_PROG_TYPE_CGROUP_SKB, | |
194 | .result = ACCEPT, | |
195 | }, | |
196 | { | |
197 | "sk_fullsock(skb->sk): sk->protocol [narrow load]", | |
198 | .insns = { | |
199 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, offsetof(struct __sk_buff, sk)), | |
200 | BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 2), | |
201 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
202 | BPF_EXIT_INSN(), | |
203 | BPF_EMIT_CALL(BPF_FUNC_sk_fullsock), | |
204 | BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2), | |
205 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
206 | BPF_EXIT_INSN(), | |
207 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, offsetof(struct bpf_sock, protocol)), | |
208 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
209 | BPF_EXIT_INSN(), | |
210 | }, | |
211 | .prog_type = BPF_PROG_TYPE_CGROUP_SKB, | |
212 | .result = ACCEPT, | |
213 | }, | |
214 | { | |
215 | "sk_fullsock(skb->sk): beyond last field", | |
216 | .insns = { | |
217 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, offsetof(struct __sk_buff, sk)), | |
218 | BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 2), | |
219 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
220 | BPF_EXIT_INSN(), | |
221 | BPF_EMIT_CALL(BPF_FUNC_sk_fullsock), | |
222 | BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2), | |
223 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
224 | BPF_EXIT_INSN(), | |
225 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, offsetofend(struct bpf_sock, state)), | |
226 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
227 | BPF_EXIT_INSN(), | |
228 | }, | |
229 | .prog_type = BPF_PROG_TYPE_CGROUP_SKB, | |
230 | .result = REJECT, | |
231 | .errstr = "invalid sock access", | |
232 | }, | |
233 | { | |
234 | "bpf_tcp_sock(skb->sk): no !skb->sk check", | |
235 | .insns = { | |
236 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, offsetof(struct __sk_buff, sk)), | |
237 | BPF_EMIT_CALL(BPF_FUNC_tcp_sock), | |
238 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
239 | BPF_EXIT_INSN(), | |
240 | }, | |
241 | .prog_type = BPF_PROG_TYPE_CGROUP_SKB, | |
242 | .result = REJECT, | |
243 | .errstr = "type=sock_common_or_null expected=sock_common", | |
244 | }, | |
245 | { | |
246 | "bpf_tcp_sock(skb->sk): no NULL check on ret", | |
247 | .insns = { | |
248 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, offsetof(struct __sk_buff, sk)), | |
249 | BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 2), | |
250 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
251 | BPF_EXIT_INSN(), | |
252 | BPF_EMIT_CALL(BPF_FUNC_tcp_sock), | |
253 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, offsetof(struct bpf_tcp_sock, snd_cwnd)), | |
254 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
255 | BPF_EXIT_INSN(), | |
256 | }, | |
257 | .prog_type = BPF_PROG_TYPE_CGROUP_SKB, | |
258 | .result = REJECT, | |
259 | .errstr = "invalid mem access 'tcp_sock_or_null'", | |
260 | }, | |
261 | { | |
262 | "bpf_tcp_sock(skb->sk): tp->snd_cwnd", | |
263 | .insns = { | |
264 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, offsetof(struct __sk_buff, sk)), | |
265 | BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 2), | |
266 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
267 | BPF_EXIT_INSN(), | |
268 | BPF_EMIT_CALL(BPF_FUNC_tcp_sock), | |
269 | BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), | |
270 | BPF_EXIT_INSN(), | |
271 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, offsetof(struct bpf_tcp_sock, snd_cwnd)), | |
272 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
273 | BPF_EXIT_INSN(), | |
274 | }, | |
275 | .prog_type = BPF_PROG_TYPE_CGROUP_SKB, | |
276 | .result = ACCEPT, | |
277 | }, | |
278 | { | |
279 | "bpf_tcp_sock(skb->sk): tp->bytes_acked", | |
280 | .insns = { | |
281 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, offsetof(struct __sk_buff, sk)), | |
282 | BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 2), | |
283 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
284 | BPF_EXIT_INSN(), | |
285 | BPF_EMIT_CALL(BPF_FUNC_tcp_sock), | |
286 | BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), | |
287 | BPF_EXIT_INSN(), | |
288 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, offsetof(struct bpf_tcp_sock, bytes_acked)), | |
289 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
290 | BPF_EXIT_INSN(), | |
291 | }, | |
292 | .prog_type = BPF_PROG_TYPE_CGROUP_SKB, | |
293 | .result = ACCEPT, | |
294 | }, | |
295 | { | |
296 | "bpf_tcp_sock(skb->sk): beyond last field", | |
297 | .insns = { | |
298 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, offsetof(struct __sk_buff, sk)), | |
299 | BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 2), | |
300 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
301 | BPF_EXIT_INSN(), | |
302 | BPF_EMIT_CALL(BPF_FUNC_tcp_sock), | |
303 | BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), | |
304 | BPF_EXIT_INSN(), | |
305 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, offsetofend(struct bpf_tcp_sock, bytes_acked)), | |
306 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
307 | BPF_EXIT_INSN(), | |
308 | }, | |
309 | .prog_type = BPF_PROG_TYPE_CGROUP_SKB, | |
310 | .result = REJECT, | |
311 | .errstr = "invalid tcp_sock access", | |
312 | }, | |
313 | { | |
314 | "bpf_tcp_sock(bpf_sk_fullsock(skb->sk)): tp->snd_cwnd", | |
315 | .insns = { | |
316 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, offsetof(struct __sk_buff, sk)), | |
317 | BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 2), | |
318 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
319 | BPF_EXIT_INSN(), | |
320 | BPF_EMIT_CALL(BPF_FUNC_sk_fullsock), | |
321 | BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), | |
322 | BPF_EXIT_INSN(), | |
323 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
324 | BPF_EMIT_CALL(BPF_FUNC_tcp_sock), | |
325 | BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), | |
326 | BPF_EXIT_INSN(), | |
327 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, offsetof(struct bpf_tcp_sock, snd_cwnd)), | |
328 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
329 | BPF_EXIT_INSN(), | |
330 | }, | |
331 | .prog_type = BPF_PROG_TYPE_CGROUP_SKB, | |
332 | .result = ACCEPT, | |
333 | }, | |
334 | { | |
335 | "bpf_sk_release(skb->sk)", | |
336 | .insns = { | |
337 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, offsetof(struct __sk_buff, sk)), | |
338 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1), | |
339 | BPF_EMIT_CALL(BPF_FUNC_sk_release), | |
340 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
341 | BPF_EXIT_INSN(), | |
342 | }, | |
343 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
344 | .result = REJECT, | |
345 | .errstr = "type=sock_common expected=sock", | |
346 | }, | |
347 | { | |
348 | "bpf_sk_release(bpf_sk_fullsock(skb->sk))", | |
349 | .insns = { | |
350 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, offsetof(struct __sk_buff, sk)), | |
351 | BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 2), | |
352 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
353 | BPF_EXIT_INSN(), | |
354 | BPF_EMIT_CALL(BPF_FUNC_sk_fullsock), | |
355 | BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), | |
356 | BPF_EXIT_INSN(), | |
357 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
358 | BPF_EMIT_CALL(BPF_FUNC_sk_release), | |
359 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
360 | BPF_EXIT_INSN(), | |
361 | }, | |
362 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
363 | .result = REJECT, | |
364 | .errstr = "reference has not been acquired before", | |
365 | }, | |
366 | { | |
367 | "bpf_sk_release(bpf_tcp_sock(skb->sk))", | |
368 | .insns = { | |
369 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, offsetof(struct __sk_buff, sk)), | |
370 | BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 2), | |
371 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
372 | BPF_EXIT_INSN(), | |
373 | BPF_EMIT_CALL(BPF_FUNC_tcp_sock), | |
374 | BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), | |
375 | BPF_EXIT_INSN(), | |
376 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
377 | BPF_EMIT_CALL(BPF_FUNC_sk_release), | |
378 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
379 | BPF_EXIT_INSN(), | |
380 | }, | |
381 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
382 | .result = REJECT, | |
383 | .errstr = "type=tcp_sock expected=sock", | |
384 | }, |