Mercurial > hg > nginx
annotate src/http/modules/ngx_http_grpc_module.c @ 7371:8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
The directives enable the use of the SO_KEEPALIVE option on
upstream connections. By default, the value is left unchanged.
author | Vladimir Homutov <vl@nginx.com> |
---|---|
date | Wed, 03 Oct 2018 14:08:51 +0300 |
parents | 67c6cb7f477c |
children | 57463f4e2fcd |
rev | line source |
---|---|
7233 | 1 |
2 /* | |
3 * Copyright (C) Maxim Dounin | |
4 * Copyright (C) Nginx, Inc. | |
5 */ | |
6 | |
7 | |
8 #include <ngx_config.h> | |
9 #include <ngx_core.h> | |
10 #include <ngx_http.h> | |
11 | |
12 | |
13 typedef struct { | |
14 ngx_array_t *flushes; | |
15 ngx_array_t *lengths; | |
16 ngx_array_t *values; | |
17 ngx_hash_t hash; | |
18 } ngx_http_grpc_headers_t; | |
19 | |
20 | |
21 typedef struct { | |
22 ngx_http_upstream_conf_t upstream; | |
23 | |
24 ngx_http_grpc_headers_t headers; | |
25 ngx_array_t *headers_source; | |
26 | |
27 ngx_str_t host; | |
28 ngx_uint_t host_set; | |
29 | |
30 #if (NGX_HTTP_SSL) | |
31 ngx_uint_t ssl; | |
32 ngx_uint_t ssl_protocols; | |
33 ngx_str_t ssl_ciphers; | |
34 ngx_uint_t ssl_verify_depth; | |
35 ngx_str_t ssl_trusted_certificate; | |
36 ngx_str_t ssl_crl; | |
37 ngx_str_t ssl_certificate; | |
38 ngx_str_t ssl_certificate_key; | |
39 ngx_array_t *ssl_passwords; | |
40 #endif | |
41 } ngx_http_grpc_loc_conf_t; | |
42 | |
43 | |
44 typedef enum { | |
45 ngx_http_grpc_st_start = 0, | |
46 ngx_http_grpc_st_length_2, | |
47 ngx_http_grpc_st_length_3, | |
48 ngx_http_grpc_st_type, | |
49 ngx_http_grpc_st_flags, | |
50 ngx_http_grpc_st_stream_id, | |
51 ngx_http_grpc_st_stream_id_2, | |
52 ngx_http_grpc_st_stream_id_3, | |
53 ngx_http_grpc_st_stream_id_4, | |
54 ngx_http_grpc_st_payload, | |
55 ngx_http_grpc_st_padding | |
56 } ngx_http_grpc_state_e; | |
57 | |
58 | |
59 typedef struct { | |
60 size_t init_window; | |
61 size_t send_window; | |
62 size_t recv_window; | |
63 ngx_uint_t last_stream_id; | |
64 } ngx_http_grpc_conn_t; | |
65 | |
66 | |
67 typedef struct { | |
68 ngx_http_grpc_state_e state; | |
69 ngx_uint_t frame_state; | |
70 ngx_uint_t fragment_state; | |
71 | |
72 ngx_chain_t *in; | |
73 ngx_chain_t *out; | |
74 ngx_chain_t *free; | |
75 ngx_chain_t *busy; | |
76 | |
77 ngx_http_grpc_conn_t *connection; | |
78 | |
79 ngx_uint_t id; | |
80 | |
81 ssize_t send_window; | |
82 size_t recv_window; | |
83 | |
84 size_t rest; | |
85 ngx_uint_t stream_id; | |
86 u_char type; | |
87 u_char flags; | |
88 u_char padding; | |
89 | |
90 ngx_uint_t error; | |
91 ngx_uint_t window_update; | |
92 | |
93 ngx_uint_t setting_id; | |
94 ngx_uint_t setting_value; | |
95 | |
96 u_char ping_data[8]; | |
97 | |
98 ngx_uint_t index; | |
99 ngx_str_t name; | |
100 ngx_str_t value; | |
101 | |
102 u_char *field_end; | |
103 size_t field_length; | |
104 size_t field_rest; | |
105 u_char field_state; | |
106 | |
107 unsigned literal:1; | |
108 unsigned field_huffman:1; | |
109 | |
110 unsigned header_sent:1; | |
111 unsigned output_closed:1; | |
7350
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
112 unsigned output_blocked:1; |
7233 | 113 unsigned parsing_headers:1; |
114 unsigned end_stream:1; | |
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
115 unsigned done:1; |
7233 | 116 unsigned status:1; |
117 | |
118 ngx_http_request_t *request; | |
119 } ngx_http_grpc_ctx_t; | |
120 | |
121 | |
122 typedef struct { | |
123 u_char length_0; | |
124 u_char length_1; | |
125 u_char length_2; | |
126 u_char type; | |
127 u_char flags; | |
128 u_char stream_id_0; | |
129 u_char stream_id_1; | |
130 u_char stream_id_2; | |
131 u_char stream_id_3; | |
132 } ngx_http_grpc_frame_t; | |
133 | |
134 | |
135 static ngx_int_t ngx_http_grpc_create_request(ngx_http_request_t *r); | |
136 static ngx_int_t ngx_http_grpc_reinit_request(ngx_http_request_t *r); | |
137 static ngx_int_t ngx_http_grpc_body_output_filter(void *data, ngx_chain_t *in); | |
138 static ngx_int_t ngx_http_grpc_process_header(ngx_http_request_t *r); | |
139 static ngx_int_t ngx_http_grpc_filter_init(void *data); | |
140 static ngx_int_t ngx_http_grpc_filter(void *data, ssize_t bytes); | |
141 | |
142 static ngx_int_t ngx_http_grpc_parse_frame(ngx_http_request_t *r, | |
143 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
144 static ngx_int_t ngx_http_grpc_parse_header(ngx_http_request_t *r, | |
145 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
146 static ngx_int_t ngx_http_grpc_parse_fragment(ngx_http_request_t *r, | |
147 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
148 static ngx_int_t ngx_http_grpc_validate_header_name(ngx_http_request_t *r, | |
149 ngx_str_t *s); | |
150 static ngx_int_t ngx_http_grpc_validate_header_value(ngx_http_request_t *r, | |
151 ngx_str_t *s); | |
152 static ngx_int_t ngx_http_grpc_parse_rst_stream(ngx_http_request_t *r, | |
153 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
154 static ngx_int_t ngx_http_grpc_parse_goaway(ngx_http_request_t *r, | |
155 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
156 static ngx_int_t ngx_http_grpc_parse_window_update(ngx_http_request_t *r, | |
157 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
158 static ngx_int_t ngx_http_grpc_parse_settings(ngx_http_request_t *r, | |
159 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
160 static ngx_int_t ngx_http_grpc_parse_ping(ngx_http_request_t *r, | |
161 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
162 | |
163 static ngx_int_t ngx_http_grpc_send_settings_ack(ngx_http_request_t *r, | |
164 ngx_http_grpc_ctx_t *ctx); | |
165 static ngx_int_t ngx_http_grpc_send_ping_ack(ngx_http_request_t *r, | |
166 ngx_http_grpc_ctx_t *ctx); | |
167 static ngx_int_t ngx_http_grpc_send_window_update(ngx_http_request_t *r, | |
168 ngx_http_grpc_ctx_t *ctx); | |
169 | |
170 static ngx_chain_t *ngx_http_grpc_get_buf(ngx_http_request_t *r, | |
171 ngx_http_grpc_ctx_t *ctx); | |
172 static ngx_http_grpc_ctx_t *ngx_http_grpc_get_ctx(ngx_http_request_t *r); | |
173 static ngx_int_t ngx_http_grpc_get_connection_data(ngx_http_request_t *r, | |
174 ngx_http_grpc_ctx_t *ctx, ngx_peer_connection_t *pc); | |
175 static void ngx_http_grpc_cleanup(void *data); | |
176 | |
177 static void ngx_http_grpc_abort_request(ngx_http_request_t *r); | |
178 static void ngx_http_grpc_finalize_request(ngx_http_request_t *r, | |
179 ngx_int_t rc); | |
180 | |
7234
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
181 static ngx_int_t ngx_http_grpc_internal_trailers_variable( |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
182 ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data); |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
183 |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
184 static ngx_int_t ngx_http_grpc_add_variables(ngx_conf_t *cf); |
7233 | 185 static void *ngx_http_grpc_create_loc_conf(ngx_conf_t *cf); |
186 static char *ngx_http_grpc_merge_loc_conf(ngx_conf_t *cf, | |
187 void *parent, void *child); | |
188 static ngx_int_t ngx_http_grpc_init_headers(ngx_conf_t *cf, | |
189 ngx_http_grpc_loc_conf_t *conf, ngx_http_grpc_headers_t *headers, | |
190 ngx_keyval_t *default_headers); | |
191 | |
192 static char *ngx_http_grpc_pass(ngx_conf_t *cf, ngx_command_t *cmd, | |
193 void *conf); | |
194 | |
195 #if (NGX_HTTP_SSL) | |
196 static char *ngx_http_grpc_ssl_password_file(ngx_conf_t *cf, | |
197 ngx_command_t *cmd, void *conf); | |
198 static ngx_int_t ngx_http_grpc_set_ssl(ngx_conf_t *cf, | |
199 ngx_http_grpc_loc_conf_t *glcf); | |
200 #endif | |
201 | |
202 | |
203 static ngx_conf_bitmask_t ngx_http_grpc_next_upstream_masks[] = { | |
204 { ngx_string("error"), NGX_HTTP_UPSTREAM_FT_ERROR }, | |
205 { ngx_string("timeout"), NGX_HTTP_UPSTREAM_FT_TIMEOUT }, | |
206 { ngx_string("invalid_header"), NGX_HTTP_UPSTREAM_FT_INVALID_HEADER }, | |
207 { ngx_string("non_idempotent"), NGX_HTTP_UPSTREAM_FT_NON_IDEMPOTENT }, | |
208 { ngx_string("http_500"), NGX_HTTP_UPSTREAM_FT_HTTP_500 }, | |
209 { ngx_string("http_502"), NGX_HTTP_UPSTREAM_FT_HTTP_502 }, | |
210 { ngx_string("http_503"), NGX_HTTP_UPSTREAM_FT_HTTP_503 }, | |
211 { ngx_string("http_504"), NGX_HTTP_UPSTREAM_FT_HTTP_504 }, | |
212 { ngx_string("http_403"), NGX_HTTP_UPSTREAM_FT_HTTP_403 }, | |
213 { ngx_string("http_404"), NGX_HTTP_UPSTREAM_FT_HTTP_404 }, | |
214 { ngx_string("http_429"), NGX_HTTP_UPSTREAM_FT_HTTP_429 }, | |
215 { ngx_string("off"), NGX_HTTP_UPSTREAM_FT_OFF }, | |
216 { ngx_null_string, 0 } | |
217 }; | |
218 | |
219 | |
220 #if (NGX_HTTP_SSL) | |
221 | |
222 static ngx_conf_bitmask_t ngx_http_grpc_ssl_protocols[] = { | |
223 { ngx_string("SSLv2"), NGX_SSL_SSLv2 }, | |
224 { ngx_string("SSLv3"), NGX_SSL_SSLv3 }, | |
225 { ngx_string("TLSv1"), NGX_SSL_TLSv1 }, | |
226 { ngx_string("TLSv1.1"), NGX_SSL_TLSv1_1 }, | |
227 { ngx_string("TLSv1.2"), NGX_SSL_TLSv1_2 }, | |
228 { ngx_string("TLSv1.3"), NGX_SSL_TLSv1_3 }, | |
229 { ngx_null_string, 0 } | |
230 }; | |
231 | |
232 #endif | |
233 | |
234 | |
235 static ngx_command_t ngx_http_grpc_commands[] = { | |
236 | |
237 { ngx_string("grpc_pass"), | |
238 NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF|NGX_CONF_TAKE1, | |
239 ngx_http_grpc_pass, | |
240 NGX_HTTP_LOC_CONF_OFFSET, | |
241 0, | |
242 NULL }, | |
243 | |
244 { ngx_string("grpc_bind"), | |
245 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE12, | |
246 ngx_http_upstream_bind_set_slot, | |
247 NGX_HTTP_LOC_CONF_OFFSET, | |
248 offsetof(ngx_http_grpc_loc_conf_t, upstream.local), | |
249 NULL }, | |
250 | |
7371
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
251 { ngx_string("grpc_socket_keepalive"), |
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
252 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, |
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
253 ngx_conf_set_flag_slot, |
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
254 NGX_HTTP_LOC_CONF_OFFSET, |
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
255 offsetof(ngx_http_grpc_loc_conf_t, upstream.socket_keepalive), |
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
256 NULL }, |
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
257 |
7233 | 258 { ngx_string("grpc_connect_timeout"), |
259 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
260 ngx_conf_set_msec_slot, | |
261 NGX_HTTP_LOC_CONF_OFFSET, | |
262 offsetof(ngx_http_grpc_loc_conf_t, upstream.connect_timeout), | |
263 NULL }, | |
264 | |
265 { ngx_string("grpc_send_timeout"), | |
266 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
267 ngx_conf_set_msec_slot, | |
268 NGX_HTTP_LOC_CONF_OFFSET, | |
269 offsetof(ngx_http_grpc_loc_conf_t, upstream.send_timeout), | |
270 NULL }, | |
271 | |
272 { ngx_string("grpc_intercept_errors"), | |
273 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
274 ngx_conf_set_flag_slot, | |
275 NGX_HTTP_LOC_CONF_OFFSET, | |
276 offsetof(ngx_http_grpc_loc_conf_t, upstream.intercept_errors), | |
277 NULL }, | |
278 | |
279 { ngx_string("grpc_buffer_size"), | |
280 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
281 ngx_conf_set_size_slot, | |
282 NGX_HTTP_LOC_CONF_OFFSET, | |
283 offsetof(ngx_http_grpc_loc_conf_t, upstream.buffer_size), | |
284 NULL }, | |
285 | |
286 { ngx_string("grpc_read_timeout"), | |
287 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
288 ngx_conf_set_msec_slot, | |
289 NGX_HTTP_LOC_CONF_OFFSET, | |
290 offsetof(ngx_http_grpc_loc_conf_t, upstream.read_timeout), | |
291 NULL }, | |
292 | |
293 { ngx_string("grpc_next_upstream"), | |
294 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
295 ngx_conf_set_bitmask_slot, | |
296 NGX_HTTP_LOC_CONF_OFFSET, | |
297 offsetof(ngx_http_grpc_loc_conf_t, upstream.next_upstream), | |
298 &ngx_http_grpc_next_upstream_masks }, | |
299 | |
300 { ngx_string("grpc_next_upstream_tries"), | |
301 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
302 ngx_conf_set_num_slot, | |
303 NGX_HTTP_LOC_CONF_OFFSET, | |
304 offsetof(ngx_http_grpc_loc_conf_t, upstream.next_upstream_tries), | |
305 NULL }, | |
306 | |
307 { ngx_string("grpc_next_upstream_timeout"), | |
308 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
309 ngx_conf_set_msec_slot, | |
310 NGX_HTTP_LOC_CONF_OFFSET, | |
311 offsetof(ngx_http_grpc_loc_conf_t, upstream.next_upstream_timeout), | |
312 NULL }, | |
313 | |
314 { ngx_string("grpc_set_header"), | |
315 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2, | |
316 ngx_conf_set_keyval_slot, | |
317 NGX_HTTP_LOC_CONF_OFFSET, | |
318 offsetof(ngx_http_grpc_loc_conf_t, headers_source), | |
319 NULL }, | |
320 | |
321 { ngx_string("grpc_pass_header"), | |
322 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
323 ngx_conf_set_str_array_slot, | |
324 NGX_HTTP_LOC_CONF_OFFSET, | |
325 offsetof(ngx_http_grpc_loc_conf_t, upstream.pass_headers), | |
326 NULL }, | |
327 | |
328 { ngx_string("grpc_hide_header"), | |
329 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
330 ngx_conf_set_str_array_slot, | |
331 NGX_HTTP_LOC_CONF_OFFSET, | |
332 offsetof(ngx_http_grpc_loc_conf_t, upstream.hide_headers), | |
333 NULL }, | |
334 | |
335 { ngx_string("grpc_ignore_headers"), | |
336 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
337 ngx_conf_set_bitmask_slot, | |
338 NGX_HTTP_LOC_CONF_OFFSET, | |
339 offsetof(ngx_http_grpc_loc_conf_t, upstream.ignore_headers), | |
340 &ngx_http_upstream_ignore_headers_masks }, | |
341 | |
342 #if (NGX_HTTP_SSL) | |
343 | |
344 { ngx_string("grpc_ssl_session_reuse"), | |
345 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
346 ngx_conf_set_flag_slot, | |
347 NGX_HTTP_LOC_CONF_OFFSET, | |
348 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_session_reuse), | |
349 NULL }, | |
350 | |
351 { ngx_string("grpc_ssl_protocols"), | |
352 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
353 ngx_conf_set_bitmask_slot, | |
354 NGX_HTTP_LOC_CONF_OFFSET, | |
355 offsetof(ngx_http_grpc_loc_conf_t, ssl_protocols), | |
356 &ngx_http_grpc_ssl_protocols }, | |
357 | |
358 { ngx_string("grpc_ssl_ciphers"), | |
359 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
360 ngx_conf_set_str_slot, | |
361 NGX_HTTP_LOC_CONF_OFFSET, | |
362 offsetof(ngx_http_grpc_loc_conf_t, ssl_ciphers), | |
363 NULL }, | |
364 | |
365 { ngx_string("grpc_ssl_name"), | |
366 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
367 ngx_http_set_complex_value_slot, | |
368 NGX_HTTP_LOC_CONF_OFFSET, | |
369 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_name), | |
370 NULL }, | |
371 | |
372 { ngx_string("grpc_ssl_server_name"), | |
373 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
374 ngx_conf_set_flag_slot, | |
375 NGX_HTTP_LOC_CONF_OFFSET, | |
376 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_server_name), | |
377 NULL }, | |
378 | |
379 { ngx_string("grpc_ssl_verify"), | |
380 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
381 ngx_conf_set_flag_slot, | |
382 NGX_HTTP_LOC_CONF_OFFSET, | |
383 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_verify), | |
384 NULL }, | |
385 | |
386 { ngx_string("grpc_ssl_verify_depth"), | |
387 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
388 ngx_conf_set_num_slot, | |
389 NGX_HTTP_LOC_CONF_OFFSET, | |
390 offsetof(ngx_http_grpc_loc_conf_t, ssl_verify_depth), | |
391 NULL }, | |
392 | |
393 { ngx_string("grpc_ssl_trusted_certificate"), | |
394 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
395 ngx_conf_set_str_slot, | |
396 NGX_HTTP_LOC_CONF_OFFSET, | |
397 offsetof(ngx_http_grpc_loc_conf_t, ssl_trusted_certificate), | |
398 NULL }, | |
399 | |
400 { ngx_string("grpc_ssl_crl"), | |
401 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
402 ngx_conf_set_str_slot, | |
403 NGX_HTTP_LOC_CONF_OFFSET, | |
404 offsetof(ngx_http_grpc_loc_conf_t, ssl_crl), | |
405 NULL }, | |
406 | |
407 { ngx_string("grpc_ssl_certificate"), | |
408 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
409 ngx_conf_set_str_slot, | |
410 NGX_HTTP_LOC_CONF_OFFSET, | |
411 offsetof(ngx_http_grpc_loc_conf_t, ssl_certificate), | |
412 NULL }, | |
413 | |
414 { ngx_string("grpc_ssl_certificate_key"), | |
415 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
416 ngx_conf_set_str_slot, | |
417 NGX_HTTP_LOC_CONF_OFFSET, | |
418 offsetof(ngx_http_grpc_loc_conf_t, ssl_certificate_key), | |
419 NULL }, | |
420 | |
421 { ngx_string("grpc_ssl_password_file"), | |
422 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
423 ngx_http_grpc_ssl_password_file, | |
424 NGX_HTTP_LOC_CONF_OFFSET, | |
425 0, | |
426 NULL }, | |
427 | |
428 #endif | |
429 | |
430 ngx_null_command | |
431 }; | |
432 | |
433 | |
434 static ngx_http_module_t ngx_http_grpc_module_ctx = { | |
7234
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435 ngx_http_grpc_add_variables, /* preconfiguration */ |
7233 | 436 NULL, /* postconfiguration */ |
437 | |
438 NULL, /* create main configuration */ | |
439 NULL, /* init main configuration */ | |
440 | |
441 NULL, /* create server configuration */ | |
442 NULL, /* merge server configuration */ | |
443 | |
444 ngx_http_grpc_create_loc_conf, /* create location configuration */ | |
445 ngx_http_grpc_merge_loc_conf /* merge location configuration */ | |
446 }; | |
447 | |
448 | |
449 ngx_module_t ngx_http_grpc_module = { | |
450 NGX_MODULE_V1, | |
451 &ngx_http_grpc_module_ctx, /* module context */ | |
452 ngx_http_grpc_commands, /* module directives */ | |
453 NGX_HTTP_MODULE, /* module type */ | |
454 NULL, /* init master */ | |
455 NULL, /* init module */ | |
456 NULL, /* init process */ | |
457 NULL, /* init thread */ | |
458 NULL, /* exit thread */ | |
459 NULL, /* exit process */ | |
460 NULL, /* exit master */ | |
461 NGX_MODULE_V1_PADDING | |
462 }; | |
463 | |
464 | |
465 static u_char ngx_http_grpc_connection_start[] = | |
466 "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n" /* connection preface */ | |
467 | |
468 "\x00\x00\x12\x04\x00\x00\x00\x00\x00" /* settings frame */ | |
469 "\x00\x01\x00\x00\x00\x00" /* header table size */ | |
470 "\x00\x02\x00\x00\x00\x00" /* disable push */ | |
471 "\x00\x04\x7f\xff\xff\xff" /* initial window */ | |
472 | |
473 "\x00\x00\x04\x08\x00\x00\x00\x00\x00" /* window update frame */ | |
474 "\x7f\xff\x00\x00"; | |
475 | |
476 | |
477 static ngx_keyval_t ngx_http_grpc_headers[] = { | |
478 { ngx_string("Content-Length"), ngx_string("$content_length") }, | |
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479 { ngx_string("TE"), ngx_string("$grpc_internal_trailers") }, |
7233 | 480 { ngx_string("Host"), ngx_string("") }, |
481 { ngx_string("Connection"), ngx_string("") }, | |
482 { ngx_string("Transfer-Encoding"), ngx_string("") }, | |
483 { ngx_string("Keep-Alive"), ngx_string("") }, | |
484 { ngx_string("Expect"), ngx_string("") }, | |
485 { ngx_string("Upgrade"), ngx_string("") }, | |
486 { ngx_null_string, ngx_null_string } | |
487 }; | |
488 | |
489 | |
490 static ngx_str_t ngx_http_grpc_hide_headers[] = { | |
491 ngx_string("Date"), | |
492 ngx_string("Server"), | |
493 ngx_string("X-Accel-Expires"), | |
494 ngx_string("X-Accel-Redirect"), | |
495 ngx_string("X-Accel-Limit-Rate"), | |
496 ngx_string("X-Accel-Buffering"), | |
497 ngx_string("X-Accel-Charset"), | |
498 ngx_null_string | |
499 }; | |
500 | |
501 | |
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502 static ngx_http_variable_t ngx_http_grpc_vars[] = { |
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503 |
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504 { ngx_string("grpc_internal_trailers"), NULL, |
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505 ngx_http_grpc_internal_trailers_variable, 0, |
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506 NGX_HTTP_VAR_NOCACHEABLE|NGX_HTTP_VAR_NOHASH, 0 }, |
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507 |
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508 ngx_http_null_variable |
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509 }; |
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510 |
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511 |
7233 | 512 static ngx_int_t |
513 ngx_http_grpc_handler(ngx_http_request_t *r) | |
514 { | |
515 ngx_int_t rc; | |
516 ngx_http_upstream_t *u; | |
517 ngx_http_grpc_ctx_t *ctx; | |
518 ngx_http_grpc_loc_conf_t *glcf; | |
519 | |
520 if (ngx_http_upstream_create(r) != NGX_OK) { | |
521 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
522 } | |
523 | |
524 glcf = ngx_http_get_module_loc_conf(r, ngx_http_grpc_module); | |
525 | |
526 u = r->upstream; | |
527 | |
528 #if (NGX_HTTP_SSL) | |
529 u->ssl = (glcf->upstream.ssl != NULL); | |
530 | |
531 if (u->ssl) { | |
532 ngx_str_set(&u->schema, "grpcs://"); | |
533 | |
534 } else { | |
535 ngx_str_set(&u->schema, "grpc://"); | |
536 } | |
537 #else | |
538 ngx_str_set(&u->schema, "grpc://"); | |
539 #endif | |
540 | |
541 u->output.tag = (ngx_buf_tag_t) &ngx_http_grpc_module; | |
542 | |
543 u->conf = &glcf->upstream; | |
544 | |
545 u->create_request = ngx_http_grpc_create_request; | |
546 u->reinit_request = ngx_http_grpc_reinit_request; | |
547 u->process_header = ngx_http_grpc_process_header; | |
548 u->abort_request = ngx_http_grpc_abort_request; | |
549 u->finalize_request = ngx_http_grpc_finalize_request; | |
550 | |
551 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_grpc_ctx_t)); | |
552 if (ctx == NULL) { | |
553 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
554 } | |
555 | |
556 ctx->request = r; | |
557 | |
558 ngx_http_set_ctx(r, ctx, ngx_http_grpc_module); | |
559 | |
560 u->input_filter_init = ngx_http_grpc_filter_init; | |
561 u->input_filter = ngx_http_grpc_filter; | |
562 u->input_filter_ctx = ctx; | |
563 | |
564 r->request_body_no_buffering = 1; | |
565 | |
566 rc = ngx_http_read_client_request_body(r, ngx_http_upstream_init); | |
567 | |
568 if (rc >= NGX_HTTP_SPECIAL_RESPONSE) { | |
569 return rc; | |
570 } | |
571 | |
572 return NGX_DONE; | |
573 } | |
574 | |
575 | |
576 static ngx_int_t | |
577 ngx_http_grpc_create_request(ngx_http_request_t *r) | |
578 { | |
579 u_char *p, *tmp, *key_tmp, *val_tmp, *headers_frame; | |
580 size_t len, tmp_len, key_len, val_len, uri_len; | |
581 uintptr_t escape; | |
582 ngx_buf_t *b; | |
583 ngx_uint_t i, next; | |
584 ngx_chain_t *cl, *body; | |
585 ngx_list_part_t *part; | |
586 ngx_table_elt_t *header; | |
587 ngx_http_upstream_t *u; | |
588 ngx_http_grpc_frame_t *f; | |
589 ngx_http_script_code_pt code; | |
590 ngx_http_grpc_loc_conf_t *glcf; | |
591 ngx_http_script_engine_t e, le; | |
592 ngx_http_script_len_code_pt lcode; | |
593 | |
594 u = r->upstream; | |
595 | |
596 glcf = ngx_http_get_module_loc_conf(r, ngx_http_grpc_module); | |
597 | |
598 len = sizeof(ngx_http_grpc_connection_start) - 1 | |
599 + sizeof(ngx_http_grpc_frame_t); /* headers frame */ | |
600 | |
601 /* :method header */ | |
602 | |
603 if (r->method == NGX_HTTP_GET || r->method == NGX_HTTP_POST) { | |
604 len += 1; | |
605 tmp_len = 0; | |
606 | |
607 } else { | |
608 len += 1 + NGX_HTTP_V2_INT_OCTETS + r->method_name.len; | |
609 tmp_len = r->method_name.len; | |
610 } | |
611 | |
612 /* :scheme header */ | |
613 | |
614 len += 1; | |
615 | |
616 /* :path header */ | |
617 | |
618 if (r->valid_unparsed_uri) { | |
619 escape = 0; | |
620 uri_len = r->unparsed_uri.len; | |
621 | |
622 } else { | |
623 escape = 2 * ngx_escape_uri(NULL, r->uri.data, r->uri.len, | |
624 NGX_ESCAPE_URI); | |
625 uri_len = r->uri.len + escape + sizeof("?") - 1 + r->args.len; | |
626 } | |
627 | |
628 len += 1 + NGX_HTTP_V2_INT_OCTETS + uri_len; | |
629 | |
630 if (tmp_len < uri_len) { | |
631 tmp_len = uri_len; | |
632 } | |
633 | |
634 /* :authority header */ | |
635 | |
636 if (!glcf->host_set) { | |
637 len += 1 + NGX_HTTP_V2_INT_OCTETS + glcf->host.len; | |
638 | |
639 if (tmp_len < glcf->host.len) { | |
640 tmp_len = glcf->host.len; | |
641 } | |
642 } | |
643 | |
644 /* other headers */ | |
645 | |
646 ngx_http_script_flush_no_cacheable_variables(r, glcf->headers.flushes); | |
647 ngx_memzero(&le, sizeof(ngx_http_script_engine_t)); | |
648 | |
649 le.ip = glcf->headers.lengths->elts; | |
650 le.request = r; | |
651 le.flushed = 1; | |
652 | |
653 while (*(uintptr_t *) le.ip) { | |
654 | |
655 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
656 key_len = lcode(&le); | |
657 | |
658 for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode(&le)) { | |
659 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
660 } | |
661 le.ip += sizeof(uintptr_t); | |
662 | |
663 if (val_len == 0) { | |
664 continue; | |
665 } | |
666 | |
667 len += 1 + NGX_HTTP_V2_INT_OCTETS + key_len | |
668 + NGX_HTTP_V2_INT_OCTETS + val_len; | |
669 | |
670 if (tmp_len < key_len) { | |
671 tmp_len = key_len; | |
672 } | |
673 | |
674 if (tmp_len < val_len) { | |
675 tmp_len = val_len; | |
676 } | |
677 } | |
678 | |
679 if (glcf->upstream.pass_request_headers) { | |
680 part = &r->headers_in.headers.part; | |
681 header = part->elts; | |
682 | |
683 for (i = 0; /* void */; i++) { | |
684 | |
685 if (i >= part->nelts) { | |
686 if (part->next == NULL) { | |
687 break; | |
688 } | |
689 | |
690 part = part->next; | |
691 header = part->elts; | |
692 i = 0; | |
693 } | |
694 | |
695 if (ngx_hash_find(&glcf->headers.hash, header[i].hash, | |
696 header[i].lowcase_key, header[i].key.len)) | |
697 { | |
698 continue; | |
699 } | |
700 | |
701 len += 1 + NGX_HTTP_V2_INT_OCTETS + header[i].key.len | |
702 + NGX_HTTP_V2_INT_OCTETS + header[i].value.len; | |
703 | |
704 if (tmp_len < header[i].key.len) { | |
705 tmp_len = header[i].key.len; | |
706 } | |
707 | |
708 if (tmp_len < header[i].value.len) { | |
709 tmp_len = header[i].value.len; | |
710 } | |
711 } | |
712 } | |
713 | |
714 /* continuation frames */ | |
715 | |
716 len += sizeof(ngx_http_grpc_frame_t) | |
717 * (len / NGX_HTTP_V2_DEFAULT_FRAME_SIZE); | |
718 | |
719 | |
720 b = ngx_create_temp_buf(r->pool, len); | |
721 if (b == NULL) { | |
722 return NGX_ERROR; | |
723 } | |
724 | |
725 cl = ngx_alloc_chain_link(r->pool); | |
726 if (cl == NULL) { | |
727 return NGX_ERROR; | |
728 } | |
729 | |
730 cl->buf = b; | |
731 cl->next = NULL; | |
732 | |
733 tmp = ngx_palloc(r->pool, tmp_len * 3); | |
734 if (tmp == NULL) { | |
735 return NGX_ERROR; | |
736 } | |
737 | |
738 key_tmp = tmp + tmp_len; | |
739 val_tmp = tmp + 2 * tmp_len; | |
740 | |
741 /* connection preface */ | |
742 | |
743 b->last = ngx_copy(b->last, ngx_http_grpc_connection_start, | |
744 sizeof(ngx_http_grpc_connection_start) - 1); | |
745 | |
746 /* headers frame */ | |
747 | |
748 headers_frame = b->last; | |
749 | |
750 f = (ngx_http_grpc_frame_t *) b->last; | |
751 b->last += sizeof(ngx_http_grpc_frame_t); | |
752 | |
753 f->length_0 = 0; | |
754 f->length_1 = 0; | |
755 f->length_2 = 0; | |
756 f->type = NGX_HTTP_V2_HEADERS_FRAME; | |
757 f->flags = 0; | |
758 f->stream_id_0 = 0; | |
759 f->stream_id_1 = 0; | |
760 f->stream_id_2 = 0; | |
761 f->stream_id_3 = 1; | |
762 | |
763 if (r->method == NGX_HTTP_GET) { | |
764 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_METHOD_GET_INDEX); | |
765 | |
766 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
767 "grpc header: \":method: GET\""); | |
768 | |
769 } else if (r->method == NGX_HTTP_POST) { | |
770 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_METHOD_POST_INDEX); | |
771 | |
772 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
773 "grpc header: \":method: POST\""); | |
774 | |
775 } else { | |
776 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_METHOD_INDEX); | |
777 b->last = ngx_http_v2_write_value(b->last, r->method_name.data, | |
778 r->method_name.len, tmp); | |
779 | |
780 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
781 "grpc header: \":method: %V\"", &r->method_name); | |
782 } | |
783 | |
784 #if (NGX_HTTP_SSL) | |
785 if (glcf->ssl) { | |
786 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_SCHEME_HTTPS_INDEX); | |
787 | |
788 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
789 "grpc header: \":scheme: https\""); | |
790 } else | |
791 #endif | |
792 { | |
793 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_SCHEME_HTTP_INDEX); | |
794 | |
795 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
796 "grpc header: \":scheme: http\""); | |
797 } | |
798 | |
799 if (r->valid_unparsed_uri) { | |
800 | |
801 if (r->unparsed_uri.len == 1 && r->unparsed_uri.data[0] == '/') { | |
802 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_PATH_ROOT_INDEX); | |
803 | |
804 } else { | |
805 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_PATH_INDEX); | |
806 b->last = ngx_http_v2_write_value(b->last, r->unparsed_uri.data, | |
807 r->unparsed_uri.len, tmp); | |
808 } | |
809 | |
810 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
811 "grpc header: \":path: %V\"", &r->unparsed_uri); | |
812 | |
813 } else if (escape || r->args.len > 0) { | |
814 p = val_tmp; | |
815 | |
816 if (escape) { | |
817 p = (u_char *) ngx_escape_uri(p, r->uri.data, r->uri.len, | |
818 NGX_ESCAPE_URI); | |
819 | |
820 } else { | |
821 p = ngx_copy(p, r->uri.data, r->uri.len); | |
822 } | |
823 | |
824 if (r->args.len > 0) { | |
825 *p++ = '?'; | |
826 p = ngx_copy(p, r->args.data, r->args.len); | |
827 } | |
828 | |
829 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_PATH_INDEX); | |
830 b->last = ngx_http_v2_write_value(b->last, val_tmp, p - val_tmp, tmp); | |
831 | |
832 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
833 "grpc header: \":path: %*s\"", p - val_tmp, val_tmp); | |
834 | |
835 } else { | |
836 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_PATH_INDEX); | |
837 b->last = ngx_http_v2_write_value(b->last, r->uri.data, | |
838 r->uri.len, tmp); | |
839 | |
840 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
841 "grpc header: \":path: %V\"", &r->uri); | |
842 } | |
843 | |
844 if (!glcf->host_set) { | |
845 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_AUTHORITY_INDEX); | |
846 b->last = ngx_http_v2_write_value(b->last, glcf->host.data, | |
847 glcf->host.len, tmp); | |
848 | |
849 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
850 "grpc header: \":authority: %V\"", &glcf->host); | |
851 } | |
852 | |
853 ngx_memzero(&e, sizeof(ngx_http_script_engine_t)); | |
854 | |
855 e.ip = glcf->headers.values->elts; | |
856 e.request = r; | |
857 e.flushed = 1; | |
858 | |
859 le.ip = glcf->headers.lengths->elts; | |
860 | |
861 while (*(uintptr_t *) le.ip) { | |
862 | |
863 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
864 key_len = lcode(&le); | |
865 | |
866 for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode(&le)) { | |
867 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
868 } | |
869 le.ip += sizeof(uintptr_t); | |
870 | |
871 if (val_len == 0) { | |
872 e.skip = 1; | |
873 | |
874 while (*(uintptr_t *) e.ip) { | |
875 code = *(ngx_http_script_code_pt *) e.ip; | |
876 code((ngx_http_script_engine_t *) &e); | |
877 } | |
878 e.ip += sizeof(uintptr_t); | |
879 | |
880 e.skip = 0; | |
881 | |
882 continue; | |
883 } | |
884 | |
885 *b->last++ = 0; | |
886 | |
887 e.pos = key_tmp; | |
888 | |
889 code = *(ngx_http_script_code_pt *) e.ip; | |
890 code((ngx_http_script_engine_t *) &e); | |
891 | |
892 b->last = ngx_http_v2_write_name(b->last, key_tmp, key_len, tmp); | |
893 | |
894 e.pos = val_tmp; | |
895 | |
896 while (*(uintptr_t *) e.ip) { | |
897 code = *(ngx_http_script_code_pt *) e.ip; | |
898 code((ngx_http_script_engine_t *) &e); | |
899 } | |
900 e.ip += sizeof(uintptr_t); | |
901 | |
902 b->last = ngx_http_v2_write_value(b->last, val_tmp, val_len, tmp); | |
903 | |
904 #if (NGX_DEBUG) | |
905 if (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP) { | |
906 ngx_strlow(key_tmp, key_tmp, key_len); | |
907 | |
908 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
909 "grpc header: \"%*s: %*s\"", | |
910 key_len, key_tmp, val_len, val_tmp); | |
911 } | |
912 #endif | |
913 } | |
914 | |
915 if (glcf->upstream.pass_request_headers) { | |
916 part = &r->headers_in.headers.part; | |
917 header = part->elts; | |
918 | |
919 for (i = 0; /* void */; i++) { | |
920 | |
921 if (i >= part->nelts) { | |
922 if (part->next == NULL) { | |
923 break; | |
924 } | |
925 | |
926 part = part->next; | |
927 header = part->elts; | |
928 i = 0; | |
929 } | |
930 | |
931 if (ngx_hash_find(&glcf->headers.hash, header[i].hash, | |
932 header[i].lowcase_key, header[i].key.len)) | |
933 { | |
934 continue; | |
935 } | |
936 | |
937 *b->last++ = 0; | |
938 | |
939 b->last = ngx_http_v2_write_name(b->last, header[i].key.data, | |
940 header[i].key.len, tmp); | |
941 | |
942 b->last = ngx_http_v2_write_value(b->last, header[i].value.data, | |
943 header[i].value.len, tmp); | |
944 | |
945 #if (NGX_DEBUG) | |
946 if (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP) { | |
947 ngx_strlow(tmp, header[i].key.data, header[i].key.len); | |
948 | |
949 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
950 "grpc header: \"%*s: %V\"", | |
951 header[i].key.len, tmp, &header[i].value); | |
952 } | |
953 #endif | |
954 } | |
955 } | |
956 | |
957 /* update headers frame length */ | |
958 | |
959 len = b->last - headers_frame - sizeof(ngx_http_grpc_frame_t); | |
960 | |
961 if (len > NGX_HTTP_V2_DEFAULT_FRAME_SIZE) { | |
962 len = NGX_HTTP_V2_DEFAULT_FRAME_SIZE; | |
963 next = 1; | |
964 | |
965 } else { | |
966 next = 0; | |
967 } | |
968 | |
969 f = (ngx_http_grpc_frame_t *) headers_frame; | |
970 | |
971 f->length_0 = (u_char) ((len >> 16) & 0xff); | |
972 f->length_1 = (u_char) ((len >> 8) & 0xff); | |
973 f->length_2 = (u_char) (len & 0xff); | |
974 | |
975 /* create additional continuation frames */ | |
976 | |
977 p = headers_frame; | |
978 | |
979 while (next) { | |
980 p += sizeof(ngx_http_grpc_frame_t) + NGX_HTTP_V2_DEFAULT_FRAME_SIZE; | |
981 len = b->last - p; | |
982 | |
983 ngx_memmove(p + sizeof(ngx_http_grpc_frame_t), p, len); | |
984 b->last += sizeof(ngx_http_grpc_frame_t); | |
985 | |
986 if (len > NGX_HTTP_V2_DEFAULT_FRAME_SIZE) { | |
987 len = NGX_HTTP_V2_DEFAULT_FRAME_SIZE; | |
988 next = 1; | |
989 | |
990 } else { | |
991 next = 0; | |
992 } | |
993 | |
994 f = (ngx_http_grpc_frame_t *) p; | |
995 | |
996 f->length_0 = (u_char) ((len >> 16) & 0xff); | |
997 f->length_1 = (u_char) ((len >> 8) & 0xff); | |
998 f->length_2 = (u_char) (len & 0xff); | |
999 f->type = NGX_HTTP_V2_CONTINUATION_FRAME; | |
1000 f->flags = 0; | |
1001 f->stream_id_0 = 0; | |
1002 f->stream_id_1 = 0; | |
1003 f->stream_id_2 = 0; | |
1004 f->stream_id_3 = 1; | |
1005 } | |
1006 | |
1007 f->flags |= NGX_HTTP_V2_END_HEADERS_FLAG; | |
1008 | |
1009 #if (NGX_DEBUG) | |
1010 if (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP) { | |
1011 u_char buf[512]; | |
1012 size_t n, m; | |
1013 | |
1014 n = ngx_min(b->last - b->pos, 256); | |
1015 m = ngx_hex_dump(buf, b->pos, n) - buf; | |
1016 | |
1017 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1018 "grpc header: %*s%s, len: %uz", | |
1019 m, buf, b->last - b->pos > 256 ? "..." : "", | |
1020 b->last - b->pos); | |
1021 } | |
1022 #endif | |
1023 | |
1024 if (r->request_body_no_buffering) { | |
1025 | |
1026 u->request_bufs = cl; | |
1027 | |
1028 } else { | |
1029 | |
1030 body = u->request_bufs; | |
1031 u->request_bufs = cl; | |
1032 | |
1033 if (body == NULL) { | |
1034 f = (ngx_http_grpc_frame_t *) headers_frame; | |
1035 f->flags |= NGX_HTTP_V2_END_STREAM_FLAG; | |
1036 } | |
1037 | |
1038 while (body) { | |
1039 b = ngx_alloc_buf(r->pool); | |
1040 if (b == NULL) { | |
1041 return NGX_ERROR; | |
1042 } | |
1043 | |
1044 ngx_memcpy(b, body->buf, sizeof(ngx_buf_t)); | |
1045 | |
1046 cl->next = ngx_alloc_chain_link(r->pool); | |
1047 if (cl->next == NULL) { | |
1048 return NGX_ERROR; | |
1049 } | |
1050 | |
1051 cl = cl->next; | |
1052 cl->buf = b; | |
1053 | |
1054 body = body->next; | |
1055 } | |
1056 | |
1057 b->last_buf = 1; | |
1058 } | |
1059 | |
1060 u->output.output_filter = ngx_http_grpc_body_output_filter; | |
1061 u->output.filter_ctx = r; | |
1062 | |
1063 b->flush = 1; | |
1064 cl->next = NULL; | |
1065 | |
1066 return NGX_OK; | |
1067 } | |
1068 | |
1069 | |
1070 static ngx_int_t | |
1071 ngx_http_grpc_reinit_request(ngx_http_request_t *r) | |
1072 { | |
1073 ngx_http_grpc_ctx_t *ctx; | |
1074 | |
1075 ctx = ngx_http_get_module_ctx(r, ngx_http_grpc_module); | |
1076 | |
1077 if (ctx == NULL) { | |
1078 return NGX_OK; | |
1079 } | |
1080 | |
1081 ctx->state = 0; | |
1082 ctx->header_sent = 0; | |
1083 ctx->output_closed = 0; | |
7350
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diff
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|
1084 ctx->output_blocked = 0; |
7233 | 1085 ctx->parsing_headers = 0; |
1086 ctx->end_stream = 0; | |
7349
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|
1087 ctx->done = 0; |
7233 | 1088 ctx->status = 0; |
1089 ctx->connection = NULL; | |
1090 | |
1091 return NGX_OK; | |
1092 } | |
1093 | |
1094 | |
1095 static ngx_int_t | |
1096 ngx_http_grpc_body_output_filter(void *data, ngx_chain_t *in) | |
1097 { | |
1098 ngx_http_request_t *r = data; | |
1099 | |
1100 off_t file_pos; | |
1101 u_char *p, *pos, *start; | |
1102 size_t len, limit; | |
1103 ngx_buf_t *b; | |
1104 ngx_int_t rc; | |
1105 ngx_uint_t next, last; | |
1106 ngx_chain_t *cl, *out, **ll; | |
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1107 ngx_http_upstream_t *u; |
7233 | 1108 ngx_http_grpc_ctx_t *ctx; |
1109 ngx_http_grpc_frame_t *f; | |
1110 | |
1111 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1112 "grpc output filter"); | |
1113 | |
1114 ctx = ngx_http_grpc_get_ctx(r); | |
1115 | |
1116 if (ctx == NULL) { | |
1117 return NGX_ERROR; | |
1118 } | |
1119 | |
1120 if (in) { | |
1121 if (ngx_chain_add_copy(r->pool, &ctx->in, in) != NGX_OK) { | |
1122 return NGX_ERROR; | |
1123 } | |
1124 } | |
1125 | |
1126 out = NULL; | |
1127 ll = &out; | |
1128 | |
1129 if (!ctx->header_sent) { | |
1130 /* first buffer contains headers */ | |
1131 | |
1132 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1133 "grpc output header"); | |
1134 | |
1135 ctx->header_sent = 1; | |
1136 | |
1137 if (ctx->id != 1) { | |
1138 /* | |
1139 * keepalive connection: skip connection preface, | |
1140 * update stream identifiers | |
1141 */ | |
1142 | |
1143 b = ctx->in->buf; | |
1144 b->pos += sizeof(ngx_http_grpc_connection_start) - 1; | |
1145 | |
1146 p = b->pos; | |
1147 | |
1148 while (p < b->last) { | |
1149 f = (ngx_http_grpc_frame_t *) p; | |
1150 p += sizeof(ngx_http_grpc_frame_t); | |
1151 | |
1152 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
1153 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
1154 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
1155 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
1156 | |
1157 p += (f->length_0 << 16) + (f->length_1 << 8) + f->length_2; | |
1158 } | |
1159 } | |
1160 | |
1161 if (ctx->in->buf->last_buf) { | |
1162 ctx->output_closed = 1; | |
1163 } | |
1164 | |
1165 *ll = ctx->in; | |
1166 ll = &ctx->in->next; | |
1167 | |
1168 ctx->in = ctx->in->next; | |
1169 } | |
1170 | |
1171 if (ctx->out) { | |
1172 /* queued control frames */ | |
1173 | |
1174 *ll = ctx->out; | |
1175 | |
1176 for (cl = ctx->out, ll = &cl->next; cl; cl = cl->next) { | |
1177 ll = &cl->next; | |
1178 } | |
1179 | |
1180 ctx->out = NULL; | |
1181 } | |
1182 | |
1183 f = NULL; | |
1184 last = 0; | |
1185 | |
1186 limit = ngx_max(0, ctx->send_window); | |
1187 | |
1188 if (limit > ctx->connection->send_window) { | |
1189 limit = ctx->connection->send_window; | |
1190 } | |
1191 | |
1192 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1193 "grpc output limit: %uz w:%z:%uz", | |
1194 limit, ctx->send_window, ctx->connection->send_window); | |
1195 | |
1196 #if (NGX_SUPPRESS_WARN) | |
1197 file_pos = 0; | |
1198 pos = NULL; | |
1199 cl = NULL; | |
1200 #endif | |
1201 | |
1202 in = ctx->in; | |
1203 | |
1204 while (in && limit > 0) { | |
1205 | |
1206 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, r->connection->log, 0, | |
1207 "grpc output in l:%d f:%d %p, pos %p, size: %z " | |
1208 "file: %O, size: %O", | |
1209 in->buf->last_buf, | |
1210 in->buf->in_file, | |
1211 in->buf->start, in->buf->pos, | |
1212 in->buf->last - in->buf->pos, | |
1213 in->buf->file_pos, | |
1214 in->buf->file_last - in->buf->file_pos); | |
1215 | |
1216 if (ngx_buf_special(in->buf)) { | |
1217 goto next; | |
1218 } | |
1219 | |
1220 if (in->buf->in_file) { | |
1221 file_pos = in->buf->file_pos; | |
1222 | |
1223 } else { | |
1224 pos = in->buf->pos; | |
1225 } | |
1226 | |
1227 next = 0; | |
1228 | |
1229 do { | |
1230 | |
1231 cl = ngx_http_grpc_get_buf(r, ctx); | |
1232 if (cl == NULL) { | |
1233 return NGX_ERROR; | |
1234 } | |
1235 | |
1236 b = cl->buf; | |
1237 | |
1238 f = (ngx_http_grpc_frame_t *) b->last; | |
1239 b->last += sizeof(ngx_http_grpc_frame_t); | |
1240 | |
1241 *ll = cl; | |
1242 ll = &cl->next; | |
1243 | |
1244 cl = ngx_chain_get_free_buf(r->pool, &ctx->free); | |
1245 if (cl == NULL) { | |
1246 return NGX_ERROR; | |
1247 } | |
1248 | |
1249 b = cl->buf; | |
1250 start = b->start; | |
1251 | |
1252 ngx_memcpy(b, in->buf, sizeof(ngx_buf_t)); | |
1253 | |
1254 /* | |
1255 * restore b->start to preserve memory allocated in the buffer, | |
1256 * to reuse it later for headers and control frames | |
1257 */ | |
1258 | |
1259 b->start = start; | |
1260 | |
1261 if (in->buf->in_file) { | |
1262 b->file_pos = file_pos; | |
1263 file_pos += ngx_min(NGX_HTTP_V2_DEFAULT_FRAME_SIZE, limit); | |
1264 | |
1265 if (file_pos >= in->buf->file_last) { | |
1266 file_pos = in->buf->file_last; | |
1267 next = 1; | |
1268 } | |
1269 | |
1270 b->file_last = file_pos; | |
1271 len = (ngx_uint_t) (file_pos - b->file_pos); | |
1272 | |
1273 } else { | |
1274 b->pos = pos; | |
1275 pos += ngx_min(NGX_HTTP_V2_DEFAULT_FRAME_SIZE, limit); | |
1276 | |
1277 if (pos >= in->buf->last) { | |
1278 pos = in->buf->last; | |
1279 next = 1; | |
1280 } | |
1281 | |
1282 b->last = pos; | |
1283 len = (ngx_uint_t) (pos - b->pos); | |
1284 } | |
1285 | |
1286 b->tag = (ngx_buf_tag_t) &ngx_http_grpc_body_output_filter; | |
1287 b->shadow = in->buf; | |
1288 b->last_shadow = next; | |
1289 | |
1290 b->last_buf = 0; | |
1291 b->last_in_chain = 0; | |
1292 | |
1293 *ll = cl; | |
1294 ll = &cl->next; | |
1295 | |
1296 f->length_0 = (u_char) ((len >> 16) & 0xff); | |
1297 f->length_1 = (u_char) ((len >> 8) & 0xff); | |
1298 f->length_2 = (u_char) (len & 0xff); | |
1299 f->type = NGX_HTTP_V2_DATA_FRAME; | |
1300 f->flags = 0; | |
1301 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
1302 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
1303 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
1304 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
1305 | |
1306 limit -= len; | |
1307 ctx->send_window -= len; | |
1308 ctx->connection->send_window -= len; | |
1309 | |
1310 } while (!next && limit > 0); | |
1311 | |
1312 if (!next) { | |
1313 /* | |
1314 * if the buffer wasn't fully sent due to flow control limits, | |
1315 * preserve position for future use | |
1316 */ | |
1317 | |
1318 if (in->buf->in_file) { | |
1319 in->buf->file_pos = file_pos; | |
1320 | |
1321 } else { | |
1322 in->buf->pos = pos; | |
1323 } | |
1324 | |
1325 break; | |
1326 } | |
1327 | |
1328 next: | |
1329 | |
1330 if (in->buf->last_buf) { | |
1331 last = 1; | |
1332 } | |
1333 | |
1334 in = in->next; | |
1335 } | |
1336 | |
1337 ctx->in = in; | |
1338 | |
1339 if (last) { | |
1340 | |
1341 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1342 "grpc output last"); | |
1343 | |
1344 ctx->output_closed = 1; | |
1345 | |
1346 if (f) { | |
1347 f->flags |= NGX_HTTP_V2_END_STREAM_FLAG; | |
1348 | |
1349 } else { | |
1350 cl = ngx_http_grpc_get_buf(r, ctx); | |
1351 if (cl == NULL) { | |
1352 return NGX_ERROR; | |
1353 } | |
1354 | |
1355 b = cl->buf; | |
1356 | |
1357 f = (ngx_http_grpc_frame_t *) b->last; | |
1358 b->last += sizeof(ngx_http_grpc_frame_t); | |
1359 | |
1360 f->length_0 = 0; | |
1361 f->length_1 = 0; | |
1362 f->length_2 = 0; | |
1363 f->type = NGX_HTTP_V2_DATA_FRAME; | |
1364 f->flags = NGX_HTTP_V2_END_STREAM_FLAG; | |
1365 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
1366 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
1367 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
1368 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
1369 | |
1370 *ll = cl; | |
1371 ll = &cl->next; | |
1372 } | |
1373 | |
1374 cl->buf->last_buf = 1; | |
1375 } | |
1376 | |
1377 *ll = NULL; | |
1378 | |
1379 #if (NGX_DEBUG) | |
1380 | |
1381 for (cl = out; cl; cl = cl->next) { | |
1382 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, r->connection->log, 0, | |
1383 "grpc output out l:%d f:%d %p, pos %p, size: %z " | |
1384 "file: %O, size: %O", | |
1385 cl->buf->last_buf, | |
1386 cl->buf->in_file, | |
1387 cl->buf->start, cl->buf->pos, | |
1388 cl->buf->last - cl->buf->pos, | |
1389 cl->buf->file_pos, | |
1390 cl->buf->file_last - cl->buf->file_pos); | |
1391 } | |
1392 | |
1393 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1394 "grpc output limit: %uz w:%z:%uz", | |
1395 limit, ctx->send_window, ctx->connection->send_window); | |
1396 | |
1397 #endif | |
1398 | |
1399 rc = ngx_chain_writer(&r->upstream->writer, out); | |
1400 | |
1401 ngx_chain_update_chains(r->pool, &ctx->free, &ctx->busy, &out, | |
1402 (ngx_buf_tag_t) &ngx_http_grpc_body_output_filter); | |
1403 | |
1404 for (cl = ctx->free; cl; cl = cl->next) { | |
1405 | |
1406 /* mark original buffers as sent */ | |
1407 | |
1408 if (cl->buf->shadow) { | |
1409 if (cl->buf->last_shadow) { | |
1410 b = cl->buf->shadow; | |
1411 b->pos = b->last; | |
1412 } | |
1413 | |
1414 cl->buf->shadow = NULL; | |
1415 } | |
1416 } | |
1417 | |
1418 if (rc == NGX_OK && ctx->in) { | |
1419 rc = NGX_AGAIN; | |
1420 } | |
1421 | |
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diff
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1422 if (rc == NGX_AGAIN) { |
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1423 ctx->output_blocked = 1; |
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1424 |
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1425 } else { |
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1426 ctx->output_blocked = 0; |
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1427 } |
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parents:
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1428 |
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1429 if (ctx->done) { |
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1430 |
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1431 /* |
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1432 * We have already got the response and were sending some additional |
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parents:
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|
1433 * control frames. Even if there is still something unsent, stop |
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parents:
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1434 * here anyway. |
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1435 */ |
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1436 |
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1437 u = r->upstream; |
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1438 u->length = 0; |
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1439 |
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1440 if (ctx->in == NULL |
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1441 && ctx->out == NULL |
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1442 && ctx->output_closed |
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1443 && !ctx->output_blocked |
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1444 && ctx->state == ngx_http_grpc_st_start) |
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1445 { |
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1446 u->keepalive = 1; |
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1447 } |
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1448 |
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1449 ngx_post_event(u->peer.connection->read, &ngx_posted_events); |
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1450 } |
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1451 |
7233 | 1452 return rc; |
1453 } | |
1454 | |
1455 | |
1456 static ngx_int_t | |
1457 ngx_http_grpc_process_header(ngx_http_request_t *r) | |
1458 { | |
1459 ngx_str_t *status_line; | |
1460 ngx_int_t rc, status; | |
1461 ngx_buf_t *b; | |
1462 ngx_table_elt_t *h; | |
1463 ngx_http_upstream_t *u; | |
1464 ngx_http_grpc_ctx_t *ctx; | |
1465 ngx_http_upstream_header_t *hh; | |
1466 ngx_http_upstream_main_conf_t *umcf; | |
1467 | |
1468 u = r->upstream; | |
1469 b = &u->buffer; | |
1470 | |
1471 #if (NGX_DEBUG) | |
1472 if (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP) { | |
1473 u_char buf[512]; | |
1474 size_t n, m; | |
1475 | |
1476 n = ngx_min(b->last - b->pos, 256); | |
1477 m = ngx_hex_dump(buf, b->pos, n) - buf; | |
1478 | |
1479 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1480 "grpc response: %*s%s, len: %uz", | |
1481 m, buf, b->last - b->pos > 256 ? "..." : "", | |
1482 b->last - b->pos); | |
1483 } | |
1484 #endif | |
1485 | |
1486 ctx = ngx_http_grpc_get_ctx(r); | |
1487 | |
1488 if (ctx == NULL) { | |
1489 return NGX_ERROR; | |
1490 } | |
1491 | |
1492 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module); | |
1493 | |
1494 for ( ;; ) { | |
1495 | |
1496 if (ctx->state < ngx_http_grpc_st_payload) { | |
1497 | |
1498 rc = ngx_http_grpc_parse_frame(r, ctx, b); | |
1499 | |
1500 if (rc == NGX_AGAIN) { | |
1501 | |
1502 /* | |
1503 * there can be a lot of window update frames, | |
1504 * so we reset buffer if it is empty and we haven't | |
1505 * started parsing headers yet | |
1506 */ | |
1507 | |
1508 if (!ctx->parsing_headers) { | |
1509 b->pos = b->start; | |
1510 b->last = b->pos; | |
1511 } | |
1512 | |
1513 return NGX_AGAIN; | |
1514 } | |
1515 | |
1516 if (rc == NGX_ERROR) { | |
1517 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1518 } | |
1519 | |
1520 /* | |
1521 * RFC 7540 says that implementations MUST discard frames | |
1522 * that have unknown or unsupported types. However, extension | |
1523 * frames that appear in the middle of a header block are | |
1524 * not permitted. Also, for obvious reasons CONTINUATION frames | |
1525 * cannot appear before headers, and DATA frames are not expected | |
1526 * to appear before all headers are parsed. | |
1527 */ | |
1528 | |
1529 if (ctx->type == NGX_HTTP_V2_DATA_FRAME | |
1530 || (ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME | |
1531 && !ctx->parsing_headers) | |
1532 || (ctx->type != NGX_HTTP_V2_CONTINUATION_FRAME | |
1533 && ctx->parsing_headers)) | |
1534 { | |
1535 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1536 "upstream sent unexpected http2 frame: %d", | |
1537 ctx->type); | |
1538 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1539 } | |
1540 | |
1541 if (ctx->stream_id && ctx->stream_id != ctx->id) { | |
1542 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1543 "upstream sent frame for unknown stream %ui", | |
1544 ctx->stream_id); | |
1545 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1546 } | |
1547 } | |
1548 | |
1549 /* frame payload */ | |
1550 | |
1551 if (ctx->type == NGX_HTTP_V2_RST_STREAM_FRAME) { | |
1552 | |
1553 rc = ngx_http_grpc_parse_rst_stream(r, ctx, b); | |
1554 | |
1555 if (rc == NGX_AGAIN) { | |
1556 return NGX_AGAIN; | |
1557 } | |
1558 | |
1559 if (rc == NGX_ERROR) { | |
1560 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1561 } | |
1562 | |
1563 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1564 "upstream rejected request with error %ui", | |
1565 ctx->error); | |
1566 | |
1567 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1568 } | |
1569 | |
1570 if (ctx->type == NGX_HTTP_V2_GOAWAY_FRAME) { | |
1571 | |
1572 rc = ngx_http_grpc_parse_goaway(r, ctx, b); | |
1573 | |
1574 if (rc == NGX_AGAIN) { | |
1575 return NGX_AGAIN; | |
1576 } | |
1577 | |
1578 if (rc == NGX_ERROR) { | |
1579 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1580 } | |
1581 | |
1582 /* | |
1583 * If stream_id is lower than one we use, our | |
1584 * request won't be processed and needs to be retried. | |
1585 * If stream_id is greater or equal to the one we use, | |
1586 * we can continue normally (except we can't use this | |
1587 * connection for additional requests). If there is | |
1588 * a real error, the connection will be closed. | |
1589 */ | |
1590 | |
1591 if (ctx->stream_id < ctx->id) { | |
1592 | |
1593 /* TODO: we can retry non-idempotent requests */ | |
1594 | |
1595 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1596 "upstream sent goaway with error %ui", | |
1597 ctx->error); | |
1598 | |
1599 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1600 } | |
1601 | |
1602 continue; | |
1603 } | |
1604 | |
1605 if (ctx->type == NGX_HTTP_V2_WINDOW_UPDATE_FRAME) { | |
1606 | |
1607 rc = ngx_http_grpc_parse_window_update(r, ctx, b); | |
1608 | |
1609 if (rc == NGX_AGAIN) { | |
1610 return NGX_AGAIN; | |
1611 } | |
1612 | |
1613 if (rc == NGX_ERROR) { | |
1614 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1615 } | |
1616 | |
1617 if (ctx->in) { | |
1618 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
1619 } | |
1620 | |
1621 continue; | |
1622 } | |
1623 | |
1624 if (ctx->type == NGX_HTTP_V2_SETTINGS_FRAME) { | |
1625 | |
1626 rc = ngx_http_grpc_parse_settings(r, ctx, b); | |
1627 | |
1628 if (rc == NGX_AGAIN) { | |
1629 return NGX_AGAIN; | |
1630 } | |
1631 | |
1632 if (rc == NGX_ERROR) { | |
1633 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1634 } | |
1635 | |
1636 if (ctx->in) { | |
1637 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
1638 } | |
1639 | |
1640 continue; | |
1641 } | |
1642 | |
1643 if (ctx->type == NGX_HTTP_V2_PING_FRAME) { | |
1644 | |
1645 rc = ngx_http_grpc_parse_ping(r, ctx, b); | |
1646 | |
1647 if (rc == NGX_AGAIN) { | |
1648 return NGX_AGAIN; | |
1649 } | |
1650 | |
1651 if (rc == NGX_ERROR) { | |
1652 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1653 } | |
1654 | |
1655 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
1656 continue; | |
1657 } | |
1658 | |
1659 if (ctx->type == NGX_HTTP_V2_PUSH_PROMISE_FRAME) { | |
1660 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1661 "upstream sent unexpected push promise frame"); | |
1662 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1663 } | |
1664 | |
1665 if (ctx->type != NGX_HTTP_V2_HEADERS_FRAME | |
1666 && ctx->type != NGX_HTTP_V2_CONTINUATION_FRAME) | |
1667 { | |
1668 /* priority, unknown frames */ | |
1669 | |
1670 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
1671 ctx->rest -= b->last - b->pos; | |
1672 b->pos = b->last; | |
1673 return NGX_AGAIN; | |
1674 } | |
1675 | |
1676 b->pos += ctx->rest; | |
1677 ctx->rest = 0; | |
1678 ctx->state = ngx_http_grpc_st_start; | |
1679 | |
1680 continue; | |
1681 } | |
1682 | |
1683 /* headers */ | |
1684 | |
1685 for ( ;; ) { | |
1686 | |
1687 rc = ngx_http_grpc_parse_header(r, ctx, b); | |
1688 | |
1689 if (rc == NGX_AGAIN) { | |
1690 break; | |
1691 } | |
1692 | |
1693 if (rc == NGX_OK) { | |
1694 | |
1695 /* a header line has been parsed successfully */ | |
1696 | |
1697 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1698 "grpc header: \"%V: %V\"", | |
1699 &ctx->name, &ctx->value); | |
1700 | |
1701 if (ctx->name.len && ctx->name.data[0] == ':') { | |
1702 | |
1703 if (ctx->name.len != sizeof(":status") - 1 | |
1704 || ngx_strncmp(ctx->name.data, ":status", | |
1705 sizeof(":status") - 1) | |
1706 != 0) | |
1707 { | |
1708 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1709 "upstream sent invalid header \"%V: %V\"", | |
1710 &ctx->name, &ctx->value); | |
1711 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1712 } | |
1713 | |
1714 if (ctx->status) { | |
1715 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1716 "upstream sent duplicate :status header"); | |
1717 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1718 } | |
1719 | |
1720 status_line = &ctx->value; | |
1721 | |
1722 if (status_line->len != 3) { | |
1723 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1724 "upstream sent invalid :status \"%V\"", | |
1725 status_line); | |
1726 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1727 } | |
1728 | |
1729 status = ngx_atoi(status_line->data, 3); | |
1730 | |
1731 if (status == NGX_ERROR) { | |
1732 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1733 "upstream sent invalid :status \"%V\"", | |
1734 status_line); | |
1735 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1736 } | |
1737 | |
1738 if (status < NGX_HTTP_OK) { | |
1739 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1740 "upstream sent unexpected :status \"%V\"", | |
1741 status_line); | |
1742 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1743 } | |
1744 | |
1745 u->headers_in.status_n = status; | |
1746 | |
1747 if (u->state && u->state->status == 0) { | |
1748 u->state->status = status; | |
1749 } | |
1750 | |
1751 ctx->status = 1; | |
1752 | |
1753 continue; | |
1754 | |
1755 } else if (!ctx->status) { | |
1756 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1757 "upstream sent no :status header"); | |
1758 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1759 } | |
1760 | |
1761 h = ngx_list_push(&u->headers_in.headers); | |
1762 if (h == NULL) { | |
1763 return NGX_ERROR; | |
1764 } | |
1765 | |
1766 h->key = ctx->name; | |
1767 h->value = ctx->value; | |
1768 h->lowcase_key = h->key.data; | |
1769 h->hash = ngx_hash_key(h->key.data, h->key.len); | |
1770 | |
1771 hh = ngx_hash_find(&umcf->headers_in_hash, h->hash, | |
1772 h->lowcase_key, h->key.len); | |
1773 | |
1774 if (hh && hh->handler(r, h, hh->offset) != NGX_OK) { | |
1775 return NGX_ERROR; | |
1776 } | |
1777 | |
1778 continue; | |
1779 } | |
1780 | |
1781 if (rc == NGX_HTTP_PARSE_HEADER_DONE) { | |
1782 | |
1783 /* a whole header has been parsed successfully */ | |
1784 | |
1785 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1786 "grpc header done"); | |
1787 | |
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1788 if (ctx->end_stream) { |
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1789 u->headers_in.content_length_n = 0; |
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1790 |
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1791 if (ctx->in == NULL |
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1792 && ctx->out == NULL |
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1793 && ctx->output_closed |
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1794 && !ctx->output_blocked |
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1795 && b->last == b->pos) |
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1796 { |
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1797 u->keepalive = 1; |
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1798 } |
7233 | 1799 } |
1800 | |
1801 return NGX_OK; | |
1802 } | |
1803 | |
1804 /* there was error while a header line parsing */ | |
1805 | |
1806 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1807 "upstream sent invalid header"); | |
1808 | |
1809 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1810 } | |
1811 | |
1812 /* rc == NGX_AGAIN */ | |
1813 | |
1814 if (ctx->rest == 0) { | |
1815 ctx->state = ngx_http_grpc_st_start; | |
1816 continue; | |
1817 } | |
1818 | |
1819 return NGX_AGAIN; | |
1820 } | |
1821 } | |
1822 | |
1823 | |
1824 static ngx_int_t | |
1825 ngx_http_grpc_filter_init(void *data) | |
1826 { | |
1827 ngx_http_grpc_ctx_t *ctx = data; | |
1828 | |
1829 ngx_http_request_t *r; | |
1830 ngx_http_upstream_t *u; | |
1831 | |
1832 r = ctx->request; | |
1833 u = r->upstream; | |
1834 | |
1835 u->length = 1; | |
1836 | |
1837 if (ctx->end_stream) { | |
1838 u->length = 0; | |
1839 } | |
1840 | |
1841 return NGX_OK; | |
1842 } | |
1843 | |
1844 | |
1845 static ngx_int_t | |
1846 ngx_http_grpc_filter(void *data, ssize_t bytes) | |
1847 { | |
1848 ngx_http_grpc_ctx_t *ctx = data; | |
1849 | |
1850 ngx_int_t rc; | |
1851 ngx_buf_t *b, *buf; | |
1852 ngx_chain_t *cl, **ll; | |
1853 ngx_table_elt_t *h; | |
1854 ngx_http_request_t *r; | |
1855 ngx_http_upstream_t *u; | |
1856 | |
1857 r = ctx->request; | |
1858 u = r->upstream; | |
1859 b = &u->buffer; | |
1860 | |
1861 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1862 "grpc filter bytes:%z", bytes); | |
1863 | |
1864 b->pos = b->last; | |
1865 b->last += bytes; | |
1866 | |
1867 for (cl = u->out_bufs, ll = &u->out_bufs; cl; cl = cl->next) { | |
1868 ll = &cl->next; | |
1869 } | |
1870 | |
1871 for ( ;; ) { | |
1872 | |
1873 if (ctx->state < ngx_http_grpc_st_payload) { | |
1874 | |
1875 rc = ngx_http_grpc_parse_frame(r, ctx, b); | |
1876 | |
1877 if (rc == NGX_AGAIN) { | |
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1878 |
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1879 if (ctx->done) { |
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1880 |
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1881 /* |
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1882 * We have finished parsing the response and the |
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1883 * remaining control frames. If there are unsent |
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1884 * control frames, post a write event to send them. |
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1885 */ |
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1886 |
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1887 if (ctx->out) { |
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1888 ngx_post_event(u->peer.connection->write, |
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1889 &ngx_posted_events); |
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1890 return NGX_AGAIN; |
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1891 } |
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1892 |
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1893 u->length = 0; |
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1894 |
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1895 if (ctx->in == NULL |
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1896 && ctx->output_closed |
7350
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1897 && !ctx->output_blocked |
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1898 && ctx->state == ngx_http_grpc_st_start) |
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1899 { |
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1900 u->keepalive = 1; |
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1901 } |
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1902 |
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1903 break; |
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1904 } |
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1905 |
7233 | 1906 return NGX_AGAIN; |
1907 } | |
1908 | |
1909 if (rc == NGX_ERROR) { | |
1910 return NGX_ERROR; | |
1911 } | |
1912 | |
1913 if ((ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME | |
1914 && !ctx->parsing_headers) | |
1915 || (ctx->type != NGX_HTTP_V2_CONTINUATION_FRAME | |
1916 && ctx->parsing_headers)) | |
1917 { | |
1918 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1919 "upstream sent unexpected http2 frame: %d", | |
1920 ctx->type); | |
1921 return NGX_ERROR; | |
1922 } | |
1923 | |
1924 if (ctx->type == NGX_HTTP_V2_DATA_FRAME) { | |
1925 | |
1926 if (ctx->stream_id != ctx->id) { | |
1927 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1928 "upstream sent data frame " | |
1929 "for unknown stream %ui", | |
1930 ctx->stream_id); | |
1931 return NGX_ERROR; | |
1932 } | |
1933 | |
1934 if (ctx->rest > ctx->recv_window) { | |
1935 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1936 "upstream violated stream flow control, " | |
1937 "received %uz data frame with window %uz", | |
1938 ctx->rest, ctx->recv_window); | |
1939 return NGX_ERROR; | |
1940 } | |
1941 | |
1942 if (ctx->rest > ctx->connection->recv_window) { | |
1943 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1944 "upstream violated connection flow control, " | |
1945 "received %uz data frame with window %uz", | |
1946 ctx->rest, ctx->connection->recv_window); | |
1947 return NGX_ERROR; | |
1948 } | |
1949 | |
1950 ctx->recv_window -= ctx->rest; | |
1951 ctx->connection->recv_window -= ctx->rest; | |
1952 | |
1953 if (ctx->connection->recv_window < NGX_HTTP_V2_MAX_WINDOW / 4 | |
1954 || ctx->recv_window < NGX_HTTP_V2_MAX_WINDOW / 4) | |
1955 { | |
1956 if (ngx_http_grpc_send_window_update(r, ctx) != NGX_OK) { | |
1957 return NGX_ERROR; | |
1958 } | |
1959 | |
1960 ngx_post_event(u->peer.connection->write, | |
1961 &ngx_posted_events); | |
1962 } | |
1963 } | |
1964 | |
1965 if (ctx->stream_id && ctx->stream_id != ctx->id) { | |
1966 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1967 "upstream sent frame for unknown stream %ui", | |
1968 ctx->stream_id); | |
1969 return NGX_ERROR; | |
1970 } | |
1971 | |
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1972 if (ctx->stream_id && ctx->done) { |
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1973 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
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1974 "upstream sent frame for closed stream %ui", |
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1975 ctx->stream_id); |
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1976 return NGX_ERROR; |
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1977 } |
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1978 |
7233 | 1979 ctx->padding = 0; |
1980 } | |
1981 | |
1982 if (ctx->state == ngx_http_grpc_st_padding) { | |
1983 | |
1984 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
1985 ctx->rest -= b->last - b->pos; | |
1986 b->pos = b->last; | |
1987 return NGX_AGAIN; | |
1988 } | |
1989 | |
1990 b->pos += ctx->rest; | |
1991 ctx->rest = 0; | |
1992 ctx->state = ngx_http_grpc_st_start; | |
1993 | |
1994 if (ctx->flags & NGX_HTTP_V2_END_STREAM_FLAG) { | |
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1995 ctx->done = 1; |
7233 | 1996 } |
1997 | |
1998 continue; | |
1999 } | |
2000 | |
2001 /* frame payload */ | |
2002 | |
2003 if (ctx->type == NGX_HTTP_V2_RST_STREAM_FRAME) { | |
2004 | |
2005 rc = ngx_http_grpc_parse_rst_stream(r, ctx, b); | |
2006 | |
2007 if (rc == NGX_AGAIN) { | |
2008 return NGX_AGAIN; | |
2009 } | |
2010 | |
2011 if (rc == NGX_ERROR) { | |
2012 return NGX_ERROR; | |
2013 } | |
2014 | |
2015 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2016 "upstream rejected request with error %ui", | |
2017 ctx->error); | |
2018 | |
2019 return NGX_ERROR; | |
2020 } | |
2021 | |
2022 if (ctx->type == NGX_HTTP_V2_GOAWAY_FRAME) { | |
2023 | |
2024 rc = ngx_http_grpc_parse_goaway(r, ctx, b); | |
2025 | |
2026 if (rc == NGX_AGAIN) { | |
2027 return NGX_AGAIN; | |
2028 } | |
2029 | |
2030 if (rc == NGX_ERROR) { | |
2031 return NGX_ERROR; | |
2032 } | |
2033 | |
2034 /* | |
2035 * If stream_id is lower than one we use, our | |
2036 * request won't be processed and needs to be retried. | |
2037 * If stream_id is greater or equal to the one we use, | |
2038 * we can continue normally (except we can't use this | |
2039 * connection for additional requests). If there is | |
2040 * a real error, the connection will be closed. | |
2041 */ | |
2042 | |
2043 if (ctx->stream_id < ctx->id) { | |
2044 | |
2045 /* TODO: we can retry non-idempotent requests */ | |
2046 | |
2047 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2048 "upstream sent goaway with error %ui", | |
2049 ctx->error); | |
2050 | |
2051 return NGX_ERROR; | |
2052 } | |
2053 | |
2054 continue; | |
2055 } | |
2056 | |
2057 if (ctx->type == NGX_HTTP_V2_WINDOW_UPDATE_FRAME) { | |
2058 | |
2059 rc = ngx_http_grpc_parse_window_update(r, ctx, b); | |
2060 | |
2061 if (rc == NGX_AGAIN) { | |
2062 return NGX_AGAIN; | |
2063 } | |
2064 | |
2065 if (rc == NGX_ERROR) { | |
2066 return NGX_ERROR; | |
2067 } | |
2068 | |
2069 if (ctx->in) { | |
2070 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
2071 } | |
2072 | |
2073 continue; | |
2074 } | |
2075 | |
2076 if (ctx->type == NGX_HTTP_V2_SETTINGS_FRAME) { | |
2077 | |
2078 rc = ngx_http_grpc_parse_settings(r, ctx, b); | |
2079 | |
2080 if (rc == NGX_AGAIN) { | |
2081 return NGX_AGAIN; | |
2082 } | |
2083 | |
2084 if (rc == NGX_ERROR) { | |
2085 return NGX_ERROR; | |
2086 } | |
2087 | |
2088 if (ctx->in) { | |
2089 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
2090 } | |
2091 | |
2092 continue; | |
2093 } | |
2094 | |
2095 if (ctx->type == NGX_HTTP_V2_PING_FRAME) { | |
2096 | |
2097 rc = ngx_http_grpc_parse_ping(r, ctx, b); | |
2098 | |
2099 if (rc == NGX_AGAIN) { | |
2100 return NGX_AGAIN; | |
2101 } | |
2102 | |
2103 if (rc == NGX_ERROR) { | |
2104 return NGX_ERROR; | |
2105 } | |
2106 | |
2107 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
2108 continue; | |
2109 } | |
2110 | |
2111 if (ctx->type == NGX_HTTP_V2_PUSH_PROMISE_FRAME) { | |
2112 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2113 "upstream sent unexpected push promise frame"); | |
2114 return NGX_ERROR; | |
2115 } | |
2116 | |
2117 if (ctx->type == NGX_HTTP_V2_HEADERS_FRAME | |
2118 || ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME) | |
2119 { | |
2120 for ( ;; ) { | |
2121 | |
2122 rc = ngx_http_grpc_parse_header(r, ctx, b); | |
2123 | |
2124 if (rc == NGX_AGAIN) { | |
2125 break; | |
2126 } | |
2127 | |
2128 if (rc == NGX_OK) { | |
2129 | |
2130 /* a header line has been parsed successfully */ | |
2131 | |
2132 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2133 "grpc trailer: \"%V: %V\"", | |
2134 &ctx->name, &ctx->value); | |
2135 | |
2136 if (ctx->name.len && ctx->name.data[0] == ':') { | |
2137 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2138 "upstream sent invalid " | |
2139 "trailer \"%V: %V\"", | |
2140 &ctx->name, &ctx->value); | |
2141 return NGX_ERROR; | |
2142 } | |
2143 | |
2144 h = ngx_list_push(&u->headers_in.trailers); | |
2145 if (h == NULL) { | |
2146 return NGX_ERROR; | |
2147 } | |
2148 | |
2149 h->key = ctx->name; | |
2150 h->value = ctx->value; | |
2151 h->lowcase_key = h->key.data; | |
2152 h->hash = ngx_hash_key(h->key.data, h->key.len); | |
2153 | |
2154 continue; | |
2155 } | |
2156 | |
2157 if (rc == NGX_HTTP_PARSE_HEADER_DONE) { | |
2158 | |
2159 /* a whole header has been parsed successfully */ | |
2160 | |
2161 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2162 "grpc trailer done"); | |
2163 | |
2164 if (ctx->end_stream) { | |
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2165 ctx->done = 1; |
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|
2166 break; |
7233 | 2167 } |
2168 | |
2169 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2170 "upstream sent trailer without " | |
2171 "end stream flag"); | |
2172 return NGX_ERROR; | |
2173 } | |
2174 | |
2175 /* there was error while a header line parsing */ | |
2176 | |
2177 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2178 "upstream sent invalid trailer"); | |
2179 | |
2180 return NGX_ERROR; | |
2181 } | |
2182 | |
7349
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|
2183 if (rc == NGX_HTTP_PARSE_HEADER_DONE) { |
f6047a579ca1
gRPC: improved keepalive handling.
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|
2184 continue; |
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|
2185 } |
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|
2186 |
7233 | 2187 /* rc == NGX_AGAIN */ |
2188 | |
2189 if (ctx->rest == 0) { | |
2190 ctx->state = ngx_http_grpc_st_start; | |
2191 continue; | |
2192 } | |
2193 | |
2194 return NGX_AGAIN; | |
2195 } | |
2196 | |
2197 if (ctx->type != NGX_HTTP_V2_DATA_FRAME) { | |
2198 | |
2199 /* priority, unknown frames */ | |
2200 | |
2201 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
2202 ctx->rest -= b->last - b->pos; | |
2203 b->pos = b->last; | |
2204 return NGX_AGAIN; | |
2205 } | |
2206 | |
2207 b->pos += ctx->rest; | |
2208 ctx->rest = 0; | |
2209 ctx->state = ngx_http_grpc_st_start; | |
2210 | |
2211 continue; | |
2212 } | |
2213 | |
2214 /* | |
2215 * data frame: | |
2216 * | |
2217 * +---------------+ | |
2218 * |Pad Length? (8)| | |
2219 * +---------------+-----------------------------------------------+ | |
2220 * | Data (*) ... | |
2221 * +---------------------------------------------------------------+ | |
2222 * | Padding (*) ... | |
2223 * +---------------------------------------------------------------+ | |
2224 */ | |
2225 | |
2226 if (ctx->flags & NGX_HTTP_V2_PADDED_FLAG) { | |
2227 | |
2228 if (ctx->rest == 0) { | |
2229 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2230 "upstream sent too short http2 frame"); | |
2231 return NGX_ERROR; | |
2232 } | |
2233 | |
2234 if (b->pos == b->last) { | |
2235 return NGX_AGAIN; | |
2236 } | |
2237 | |
2238 ctx->flags &= ~NGX_HTTP_V2_PADDED_FLAG; | |
2239 ctx->padding = *b->pos++; | |
2240 ctx->rest -= 1; | |
2241 | |
2242 if (ctx->padding > ctx->rest) { | |
2243 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2244 "upstream sent http2 frame with too long " | |
2245 "padding: %d in frame %uz", | |
2246 ctx->padding, ctx->rest); | |
2247 return NGX_ERROR; | |
2248 } | |
2249 | |
2250 continue; | |
2251 } | |
2252 | |
2253 if (ctx->rest == ctx->padding) { | |
2254 goto done; | |
2255 } | |
2256 | |
2257 if (b->pos == b->last) { | |
2258 return NGX_AGAIN; | |
2259 } | |
2260 | |
2261 cl = ngx_chain_get_free_buf(r->pool, &u->free_bufs); | |
2262 if (cl == NULL) { | |
2263 return NGX_ERROR; | |
2264 } | |
2265 | |
2266 *ll = cl; | |
2267 ll = &cl->next; | |
2268 | |
2269 buf = cl->buf; | |
2270 | |
2271 buf->flush = 1; | |
2272 buf->memory = 1; | |
2273 | |
2274 buf->pos = b->pos; | |
2275 buf->tag = u->output.tag; | |
2276 | |
2277 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2278 "grpc output buf %p", buf->pos); | |
2279 | |
2280 if (b->last - b->pos < (ssize_t) ctx->rest - ctx->padding) { | |
2281 | |
2282 ctx->rest -= b->last - b->pos; | |
2283 b->pos = b->last; | |
2284 buf->last = b->pos; | |
2285 | |
2286 return NGX_AGAIN; | |
2287 } | |
2288 | |
2289 b->pos += ctx->rest - ctx->padding; | |
2290 buf->last = b->pos; | |
2291 ctx->rest = ctx->padding; | |
2292 | |
2293 done: | |
2294 | |
2295 if (ctx->padding) { | |
2296 ctx->state = ngx_http_grpc_st_padding; | |
2297 continue; | |
2298 } | |
2299 | |
2300 ctx->state = ngx_http_grpc_st_start; | |
2301 | |
2302 if (ctx->flags & NGX_HTTP_V2_END_STREAM_FLAG) { | |
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2303 ctx->done = 1; |
7233 | 2304 } |
2305 } | |
2306 | |
2307 return NGX_OK; | |
2308 } | |
2309 | |
2310 | |
2311 static ngx_int_t | |
2312 ngx_http_grpc_parse_frame(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
2313 ngx_buf_t *b) | |
2314 { | |
2315 u_char ch, *p; | |
2316 ngx_http_grpc_state_e state; | |
2317 | |
2318 state = ctx->state; | |
2319 | |
2320 for (p = b->pos; p < b->last; p++) { | |
2321 ch = *p; | |
2322 | |
2323 #if 0 | |
2324 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2325 "grpc frame byte: %02Xd, s:%d", ch, state); | |
2326 #endif | |
2327 | |
2328 switch (state) { | |
2329 | |
2330 case ngx_http_grpc_st_start: | |
2331 ctx->rest = ch << 16; | |
2332 state = ngx_http_grpc_st_length_2; | |
2333 break; | |
2334 | |
2335 case ngx_http_grpc_st_length_2: | |
2336 ctx->rest |= ch << 8; | |
2337 state = ngx_http_grpc_st_length_3; | |
2338 break; | |
2339 | |
2340 case ngx_http_grpc_st_length_3: | |
2341 ctx->rest |= ch; | |
2342 | |
2343 if (ctx->rest > NGX_HTTP_V2_DEFAULT_FRAME_SIZE) { | |
2344 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2345 "upstream sent too large http2 frame: %uz", | |
2346 ctx->rest); | |
2347 return NGX_ERROR; | |
2348 } | |
2349 | |
2350 state = ngx_http_grpc_st_type; | |
2351 break; | |
2352 | |
2353 case ngx_http_grpc_st_type: | |
2354 ctx->type = ch; | |
2355 state = ngx_http_grpc_st_flags; | |
2356 break; | |
2357 | |
2358 case ngx_http_grpc_st_flags: | |
2359 ctx->flags = ch; | |
2360 state = ngx_http_grpc_st_stream_id; | |
2361 break; | |
2362 | |
2363 case ngx_http_grpc_st_stream_id: | |
2364 ctx->stream_id = (ch & 0x7f) << 24; | |
2365 state = ngx_http_grpc_st_stream_id_2; | |
2366 break; | |
2367 | |
2368 case ngx_http_grpc_st_stream_id_2: | |
2369 ctx->stream_id |= ch << 16; | |
2370 state = ngx_http_grpc_st_stream_id_3; | |
2371 break; | |
2372 | |
2373 case ngx_http_grpc_st_stream_id_3: | |
2374 ctx->stream_id |= ch << 8; | |
2375 state = ngx_http_grpc_st_stream_id_4; | |
2376 break; | |
2377 | |
2378 case ngx_http_grpc_st_stream_id_4: | |
2379 ctx->stream_id |= ch; | |
2380 | |
2381 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2382 "grpc frame: %d, len: %uz, f:%d, i:%ui", | |
2383 ctx->type, ctx->rest, ctx->flags, ctx->stream_id); | |
2384 | |
2385 b->pos = p + 1; | |
2386 | |
2387 ctx->state = ngx_http_grpc_st_payload; | |
2388 ctx->frame_state = 0; | |
2389 | |
2390 return NGX_OK; | |
2391 | |
2392 /* suppress warning */ | |
2393 case ngx_http_grpc_st_payload: | |
2394 case ngx_http_grpc_st_padding: | |
2395 break; | |
2396 } | |
2397 } | |
2398 | |
2399 b->pos = p; | |
2400 ctx->state = state; | |
2401 | |
2402 return NGX_AGAIN; | |
2403 } | |
2404 | |
2405 | |
2406 static ngx_int_t | |
2407 ngx_http_grpc_parse_header(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
2408 ngx_buf_t *b) | |
2409 { | |
2410 u_char ch, *p, *last; | |
2411 size_t min; | |
2412 ngx_int_t rc; | |
2413 enum { | |
2414 sw_start = 0, | |
2415 sw_padding_length, | |
2416 sw_dependency, | |
2417 sw_dependency_2, | |
2418 sw_dependency_3, | |
2419 sw_dependency_4, | |
2420 sw_weight, | |
2421 sw_fragment, | |
2422 sw_padding | |
2423 } state; | |
2424 | |
2425 state = ctx->frame_state; | |
2426 | |
2427 if (state == sw_start) { | |
2428 | |
2429 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2430 "grpc parse header: start"); | |
2431 | |
2432 if (ctx->type == NGX_HTTP_V2_HEADERS_FRAME) { | |
2433 ctx->parsing_headers = 1; | |
2434 ctx->fragment_state = 0; | |
2435 | |
2436 min = (ctx->flags & NGX_HTTP_V2_PADDED_FLAG ? 1 : 0) | |
2437 + (ctx->flags & NGX_HTTP_V2_PRIORITY_FLAG ? 5 : 0); | |
2438 | |
2439 if (ctx->rest < min) { | |
2440 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2441 "upstream sent headers frame " | |
2442 "with invalid length: %uz", | |
2443 ctx->rest); | |
2444 return NGX_ERROR; | |
2445 } | |
2446 | |
2447 if (ctx->flags & NGX_HTTP_V2_END_STREAM_FLAG) { | |
2448 ctx->end_stream = 1; | |
2449 } | |
2450 | |
2451 if (ctx->flags & NGX_HTTP_V2_PADDED_FLAG) { | |
2452 state = sw_padding_length; | |
2453 | |
2454 } else if (ctx->flags & NGX_HTTP_V2_PRIORITY_FLAG) { | |
2455 state = sw_dependency; | |
2456 | |
2457 } else { | |
2458 state = sw_fragment; | |
2459 } | |
2460 | |
2461 } else if (ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME) { | |
2462 state = sw_fragment; | |
2463 } | |
2464 | |
2465 ctx->padding = 0; | |
7242
25a4353633a0
gRPC: fixed missing state save in frame header parsing.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7240
diff
changeset
|
2466 ctx->frame_state = state; |
7233 | 2467 } |
2468 | |
2469 if (state < sw_fragment) { | |
2470 | |
2471 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
2472 last = b->last; | |
2473 | |
2474 } else { | |
2475 last = b->pos + ctx->rest; | |
2476 } | |
2477 | |
2478 for (p = b->pos; p < last; p++) { | |
2479 ch = *p; | |
2480 | |
2481 #if 0 | |
2482 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2483 "grpc header byte: %02Xd s:%d", ch, state); | |
2484 #endif | |
2485 | |
2486 /* | |
2487 * headers frame: | |
2488 * | |
2489 * +---------------+ | |
2490 * |Pad Length? (8)| | |
2491 * +-+-------------+----------------------------------------------+ | |
2492 * |E| Stream Dependency? (31) | | |
2493 * +-+-------------+----------------------------------------------+ | |
2494 * | Weight? (8) | | |
2495 * +-+-------------+----------------------------------------------+ | |
2496 * | Header Block Fragment (*) ... | |
2497 * +--------------------------------------------------------------+ | |
2498 * | Padding (*) ... | |
2499 * +--------------------------------------------------------------+ | |
2500 */ | |
2501 | |
2502 switch (state) { | |
2503 | |
2504 case sw_padding_length: | |
2505 | |
2506 ctx->padding = ch; | |
2507 | |
2508 if (ctx->flags & NGX_HTTP_V2_PRIORITY_FLAG) { | |
2509 state = sw_dependency; | |
2510 break; | |
2511 } | |
2512 | |
2513 goto fragment; | |
2514 | |
2515 case sw_dependency: | |
2516 state = sw_dependency_2; | |
2517 break; | |
2518 | |
2519 case sw_dependency_2: | |
2520 state = sw_dependency_3; | |
2521 break; | |
2522 | |
2523 case sw_dependency_3: | |
2524 state = sw_dependency_4; | |
2525 break; | |
2526 | |
2527 case sw_dependency_4: | |
2528 state = sw_weight; | |
2529 break; | |
2530 | |
2531 case sw_weight: | |
2532 goto fragment; | |
2533 | |
2534 /* suppress warning */ | |
2535 case sw_start: | |
2536 case sw_fragment: | |
2537 case sw_padding: | |
2538 break; | |
2539 } | |
2540 } | |
2541 | |
2542 ctx->rest -= p - b->pos; | |
2543 b->pos = p; | |
2544 | |
2545 ctx->frame_state = state; | |
2546 return NGX_AGAIN; | |
2547 | |
2548 fragment: | |
2549 | |
2550 p++; | |
2551 ctx->rest -= p - b->pos; | |
2552 b->pos = p; | |
2553 | |
2554 if (ctx->padding > ctx->rest) { | |
2555 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2556 "upstream sent http2 frame with too long " | |
2557 "padding: %d in frame %uz", | |
2558 ctx->padding, ctx->rest); | |
2559 return NGX_ERROR; | |
2560 } | |
2561 | |
2562 state = sw_fragment; | |
2563 ctx->frame_state = state; | |
2564 } | |
2565 | |
2566 if (state == sw_fragment) { | |
2567 | |
2568 rc = ngx_http_grpc_parse_fragment(r, ctx, b); | |
2569 | |
2570 if (rc == NGX_AGAIN) { | |
2571 return NGX_AGAIN; | |
2572 } | |
2573 | |
2574 if (rc == NGX_ERROR) { | |
2575 return NGX_ERROR; | |
2576 } | |
2577 | |
2578 if (rc == NGX_OK) { | |
2579 return NGX_OK; | |
2580 } | |
2581 | |
2582 /* rc == NGX_DONE */ | |
2583 | |
2584 state = sw_padding; | |
2585 ctx->frame_state = state; | |
2586 } | |
2587 | |
2588 if (state == sw_padding) { | |
2589 | |
2590 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
2591 | |
2592 ctx->rest -= b->last - b->pos; | |
2593 b->pos = b->last; | |
2594 | |
2595 return NGX_AGAIN; | |
2596 } | |
2597 | |
2598 b->pos += ctx->rest; | |
2599 ctx->rest = 0; | |
2600 | |
2601 ctx->state = ngx_http_grpc_st_start; | |
2602 | |
2603 if (ctx->flags & NGX_HTTP_V2_END_HEADERS_FLAG) { | |
2604 | |
2605 if (ctx->fragment_state) { | |
2606 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2607 "upstream sent truncated http2 header"); | |
2608 return NGX_ERROR; | |
2609 } | |
2610 | |
2611 ctx->parsing_headers = 0; | |
2612 | |
2613 return NGX_HTTP_PARSE_HEADER_DONE; | |
2614 } | |
2615 | |
2616 return NGX_AGAIN; | |
2617 } | |
2618 | |
2619 /* unreachable */ | |
2620 | |
2621 return NGX_ERROR; | |
2622 } | |
2623 | |
2624 | |
2625 static ngx_int_t | |
2626 ngx_http_grpc_parse_fragment(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
2627 ngx_buf_t *b) | |
2628 { | |
2629 u_char ch, *p, *last; | |
2630 size_t size; | |
2631 ngx_uint_t index, size_update; | |
2632 enum { | |
2633 sw_start = 0, | |
2634 sw_index, | |
2635 sw_name_length, | |
2636 sw_name_length_2, | |
2637 sw_name_length_3, | |
2638 sw_name_length_4, | |
2639 sw_name, | |
2640 sw_name_bytes, | |
2641 sw_value_length, | |
2642 sw_value_length_2, | |
2643 sw_value_length_3, | |
2644 sw_value_length_4, | |
2645 sw_value, | |
2646 sw_value_bytes | |
2647 } state; | |
2648 | |
2649 /* header block fragment */ | |
2650 | |
2651 #if 0 | |
2652 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2653 "grpc header fragment %p:%p rest:%uz", | |
2654 b->pos, b->last, ctx->rest); | |
2655 #endif | |
2656 | |
2657 if (b->last - b->pos < (ssize_t) ctx->rest - ctx->padding) { | |
2658 last = b->last; | |
2659 | |
2660 } else { | |
2661 last = b->pos + ctx->rest - ctx->padding; | |
2662 } | |
2663 | |
2664 state = ctx->fragment_state; | |
2665 | |
2666 for (p = b->pos; p < last; p++) { | |
2667 ch = *p; | |
2668 | |
2669 #if 0 | |
2670 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2671 "grpc header byte: %02Xd s:%d", ch, state); | |
2672 #endif | |
2673 | |
2674 switch (state) { | |
2675 | |
2676 case sw_start: | |
2677 ctx->index = 0; | |
2678 | |
2679 if ((ch & 0x80) == 0x80) { | |
2680 /* | |
2681 * indexed header: | |
2682 * | |
2683 * 0 1 2 3 4 5 6 7 | |
2684 * +---+---+---+---+---+---+---+---+ | |
2685 * | 1 | Index (7+) | | |
2686 * +---+---------------------------+ | |
2687 */ | |
2688 | |
2689 index = ch & ~0x80; | |
2690 | |
2691 if (index == 0 || index > 61) { | |
2692 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2693 "upstream sent invalid http2 " | |
2694 "table index: %ui", index); | |
2695 return NGX_ERROR; | |
2696 } | |
2697 | |
2698 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2699 "grpc indexed header: %ui", index); | |
2700 | |
2701 ctx->index = index; | |
2702 ctx->literal = 0; | |
2703 | |
2704 goto done; | |
2705 | |
2706 } else if ((ch & 0xc0) == 0x40) { | |
2707 /* | |
2708 * literal header with incremental indexing: | |
2709 * | |
2710 * 0 1 2 3 4 5 6 7 | |
2711 * +---+---+---+---+---+---+---+---+ | |
2712 * | 0 | 1 | Index (6+) | | |
2713 * +---+---+-----------------------+ | |
2714 * | H | Value Length (7+) | | |
2715 * +---+---------------------------+ | |
2716 * | Value String (Length octets) | | |
2717 * +-------------------------------+ | |
2718 * | |
2719 * 0 1 2 3 4 5 6 7 | |
2720 * +---+---+---+---+---+---+---+---+ | |
2721 * | 0 | 1 | 0 | | |
2722 * +---+---+-----------------------+ | |
2723 * | H | Name Length (7+) | | |
2724 * +---+---------------------------+ | |
2725 * | Name String (Length octets) | | |
2726 * +---+---------------------------+ | |
2727 * | H | Value Length (7+) | | |
2728 * +---+---------------------------+ | |
2729 * | Value String (Length octets) | | |
2730 * +-------------------------------+ | |
2731 */ | |
2732 | |
2733 index = ch & ~0xc0; | |
2734 | |
2735 if (index > 61) { | |
2736 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2737 "upstream sent invalid http2 " | |
2738 "table index: %ui", index); | |
2739 return NGX_ERROR; | |
2740 } | |
2741 | |
2742 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2743 "grpc literal header: %ui", index); | |
2744 | |
2745 if (index == 0) { | |
2746 state = sw_name_length; | |
2747 break; | |
2748 } | |
2749 | |
2750 ctx->index = index; | |
2751 ctx->literal = 1; | |
2752 | |
2753 state = sw_value_length; | |
2754 break; | |
2755 | |
2756 } else if ((ch & 0xe0) == 0x20) { | |
2757 /* | |
2758 * dynamic table size update: | |
2759 * | |
2760 * 0 1 2 3 4 5 6 7 | |
2761 * +---+---+---+---+---+---+---+---+ | |
2762 * | 0 | 0 | 1 | Max size (5+) | | |
2763 * +---+---------------------------+ | |
2764 */ | |
2765 | |
2766 size_update = ch & ~0xe0; | |
2767 | |
2768 if (size_update > 0) { | |
2769 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2770 "upstream sent invalid http2 " | |
2771 "dynamic table size update: %ui", | |
2772 size_update); | |
2773 return NGX_ERROR; | |
2774 } | |
2775 | |
2776 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2777 "grpc table size update: %ui", size_update); | |
2778 | |
2779 break; | |
2780 | |
2781 } else if ((ch & 0xf0) == 0x10) { | |
2782 /* | |
2783 * literal header field never indexed: | |
2784 * | |
2785 * 0 1 2 3 4 5 6 7 | |
2786 * +---+---+---+---+---+---+---+---+ | |
2787 * | 0 | 0 | 0 | 1 | Index (4+) | | |
2788 * +---+---+-----------------------+ | |
2789 * | H | Value Length (7+) | | |
2790 * +---+---------------------------+ | |
2791 * | Value String (Length octets) | | |
2792 * +-------------------------------+ | |
2793 * | |
2794 * 0 1 2 3 4 5 6 7 | |
2795 * +---+---+---+---+---+---+---+---+ | |
2796 * | 0 | 0 | 0 | 1 | 0 | | |
2797 * +---+---+-----------------------+ | |
2798 * | H | Name Length (7+) | | |
2799 * +---+---------------------------+ | |
2800 * | Name String (Length octets) | | |
2801 * +---+---------------------------+ | |
2802 * | H | Value Length (7+) | | |
2803 * +---+---------------------------+ | |
2804 * | Value String (Length octets) | | |
2805 * +-------------------------------+ | |
2806 */ | |
2807 | |
2808 index = ch & ~0xf0; | |
2809 | |
2810 if (index == 0x0f) { | |
2811 ctx->index = index; | |
2812 ctx->literal = 1; | |
2813 state = sw_index; | |
2814 break; | |
2815 } | |
2816 | |
2817 if (index == 0) { | |
2818 state = sw_name_length; | |
2819 break; | |
2820 } | |
2821 | |
2822 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2823 "grpc literal header never indexed: %ui", | |
2824 index); | |
2825 | |
2826 ctx->index = index; | |
2827 ctx->literal = 1; | |
2828 | |
2829 state = sw_value_length; | |
2830 break; | |
2831 | |
2832 } else if ((ch & 0xf0) == 0x00) { | |
2833 /* | |
2834 * literal header field without indexing: | |
2835 * | |
2836 * 0 1 2 3 4 5 6 7 | |
2837 * +---+---+---+---+---+---+---+---+ | |
2838 * | 0 | 0 | 0 | 0 | Index (4+) | | |
2839 * +---+---+-----------------------+ | |
2840 * | H | Value Length (7+) | | |
2841 * +---+---------------------------+ | |
2842 * | Value String (Length octets) | | |
2843 * +-------------------------------+ | |
2844 * | |
2845 * 0 1 2 3 4 5 6 7 | |
2846 * +---+---+---+---+---+---+---+---+ | |
2847 * | 0 | 0 | 0 | 0 | 0 | | |
2848 * +---+---+-----------------------+ | |
2849 * | H | Name Length (7+) | | |
2850 * +---+---------------------------+ | |
2851 * | Name String (Length octets) | | |
2852 * +---+---------------------------+ | |
2853 * | H | Value Length (7+) | | |
2854 * +---+---------------------------+ | |
2855 * | Value String (Length octets) | | |
2856 * +-------------------------------+ | |
2857 */ | |
2858 | |
2859 index = ch & ~0xf0; | |
2860 | |
2861 if (index == 0x0f) { | |
2862 ctx->index = index; | |
2863 ctx->literal = 1; | |
2864 state = sw_index; | |
2865 break; | |
2866 } | |
2867 | |
2868 if (index == 0) { | |
2869 state = sw_name_length; | |
2870 break; | |
2871 } | |
2872 | |
2873 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2874 "grpc literal header without indexing: %ui", | |
2875 index); | |
2876 | |
2877 ctx->index = index; | |
2878 ctx->literal = 1; | |
2879 | |
2880 state = sw_value_length; | |
2881 break; | |
2882 } | |
2883 | |
2884 /* not reached */ | |
2885 | |
2886 return NGX_ERROR; | |
2887 | |
2888 case sw_index: | |
2889 ctx->index = ctx->index + (ch & ~0x80); | |
2890 | |
2891 if (ch & 0x80) { | |
2892 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2893 "upstream sent http2 table index " | |
2894 "with continuation flag"); | |
2895 return NGX_ERROR; | |
2896 } | |
2897 | |
2898 if (ctx->index > 61) { | |
2899 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2900 "upstream sent invalid http2 " | |
2901 "table index: %ui", ctx->index); | |
2902 return NGX_ERROR; | |
2903 } | |
2904 | |
2905 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2906 "grpc header index: %ui", ctx->index); | |
2907 | |
2908 state = sw_value_length; | |
2909 break; | |
2910 | |
2911 case sw_name_length: | |
2912 ctx->field_huffman = ch & 0x80 ? 1 : 0; | |
2913 ctx->field_length = ch & ~0x80; | |
2914 | |
2915 if (ctx->field_length == 0x7f) { | |
2916 state = sw_name_length_2; | |
2917 break; | |
2918 } | |
2919 | |
2920 if (ctx->field_length == 0) { | |
2921 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2922 "upstream sent zero http2 " | |
2923 "header name length"); | |
2924 return NGX_ERROR; | |
2925 } | |
2926 | |
2927 state = sw_name; | |
2928 break; | |
2929 | |
2930 case sw_name_length_2: | |
2931 ctx->field_length += ch & ~0x80; | |
2932 | |
2933 if (ch & 0x80) { | |
2934 state = sw_name_length_3; | |
2935 break; | |
2936 } | |
2937 | |
2938 state = sw_name; | |
2939 break; | |
2940 | |
2941 case sw_name_length_3: | |
2942 ctx->field_length += (ch & ~0x80) << 7; | |
2943 | |
2944 if (ch & 0x80) { | |
2945 state = sw_name_length_4; | |
2946 break; | |
2947 } | |
2948 | |
2949 state = sw_name; | |
2950 break; | |
2951 | |
2952 case sw_name_length_4: | |
2953 ctx->field_length += (ch & ~0x80) << 14; | |
2954 | |
2955 if (ch & 0x80) { | |
2956 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2957 "upstream sent too large http2 " | |
2958 "header name length"); | |
2959 return NGX_ERROR; | |
2960 } | |
2961 | |
2962 state = sw_name; | |
2963 break; | |
2964 | |
2965 case sw_name: | |
2966 ctx->name.len = ctx->field_huffman ? | |
2967 ctx->field_length * 8 / 5 : ctx->field_length; | |
2968 | |
2969 ctx->name.data = ngx_pnalloc(r->pool, ctx->name.len + 1); | |
2970 if (ctx->name.data == NULL) { | |
2971 return NGX_ERROR; | |
2972 } | |
2973 | |
2974 ctx->field_end = ctx->name.data; | |
2975 ctx->field_rest = ctx->field_length; | |
2976 ctx->field_state = 0; | |
2977 | |
2978 state = sw_name_bytes; | |
2979 | |
2980 /* fall through */ | |
2981 | |
2982 case sw_name_bytes: | |
2983 | |
2984 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2985 "grpc name: len:%uz h:%d last:%uz, rest:%uz", | |
2986 ctx->field_length, | |
2987 ctx->field_huffman, | |
2988 last - p, | |
2989 ctx->rest - (p - b->pos)); | |
2990 | |
2991 size = ngx_min(last - p, (ssize_t) ctx->field_rest); | |
2992 ctx->field_rest -= size; | |
2993 | |
2994 if (ctx->field_huffman) { | |
2995 if (ngx_http_v2_huff_decode(&ctx->field_state, p, size, | |
2996 &ctx->field_end, | |
2997 ctx->field_rest == 0, | |
2998 r->connection->log) | |
2999 != NGX_OK) | |
3000 { | |
3001 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3002 "upstream sent invalid encoded header"); | |
3003 return NGX_ERROR; | |
3004 } | |
3005 | |
3006 ctx->name.len = ctx->field_end - ctx->name.data; | |
3007 ctx->name.data[ctx->name.len] = '\0'; | |
3008 | |
3009 } else { | |
7240
413189f03c8d
gRPC: fixed parsing response headers split on CONTINUATION frames.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7235
diff
changeset
|
3010 ctx->field_end = ngx_cpymem(ctx->field_end, p, size); |
7233 | 3011 ctx->name.data[ctx->name.len] = '\0'; |
3012 } | |
3013 | |
3014 p += size - 1; | |
3015 | |
3016 if (ctx->field_rest == 0) { | |
3017 state = sw_value_length; | |
3018 } | |
3019 | |
3020 break; | |
3021 | |
3022 case sw_value_length: | |
3023 ctx->field_huffman = ch & 0x80 ? 1 : 0; | |
3024 ctx->field_length = ch & ~0x80; | |
3025 | |
3026 if (ctx->field_length == 0x7f) { | |
3027 state = sw_value_length_2; | |
3028 break; | |
3029 } | |
3030 | |
3031 if (ctx->field_length == 0) { | |
3032 ngx_str_set(&ctx->value, ""); | |
3033 goto done; | |
3034 } | |
3035 | |
3036 state = sw_value; | |
3037 break; | |
3038 | |
3039 case sw_value_length_2: | |
3040 ctx->field_length += ch & ~0x80; | |
3041 | |
3042 if (ch & 0x80) { | |
3043 state = sw_value_length_3; | |
3044 break; | |
3045 } | |
3046 | |
3047 state = sw_value; | |
3048 break; | |
3049 | |
3050 case sw_value_length_3: | |
3051 ctx->field_length += (ch & ~0x80) << 7; | |
3052 | |
3053 if (ch & 0x80) { | |
3054 state = sw_value_length_4; | |
3055 break; | |
3056 } | |
3057 | |
3058 state = sw_value; | |
3059 break; | |
3060 | |
3061 case sw_value_length_4: | |
3062 ctx->field_length += (ch & ~0x80) << 14; | |
3063 | |
3064 if (ch & 0x80) { | |
3065 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3066 "upstream sent too large http2 " | |
3067 "header value length"); | |
3068 return NGX_ERROR; | |
3069 } | |
3070 | |
3071 state = sw_value; | |
3072 break; | |
3073 | |
3074 case sw_value: | |
3075 ctx->value.len = ctx->field_huffman ? | |
3076 ctx->field_length * 8 / 5 : ctx->field_length; | |
3077 | |
3078 ctx->value.data = ngx_pnalloc(r->pool, ctx->value.len + 1); | |
3079 if (ctx->value.data == NULL) { | |
3080 return NGX_ERROR; | |
3081 } | |
3082 | |
3083 ctx->field_end = ctx->value.data; | |
3084 ctx->field_rest = ctx->field_length; | |
3085 ctx->field_state = 0; | |
3086 | |
3087 state = sw_value_bytes; | |
3088 | |
3089 /* fall through */ | |
3090 | |
3091 case sw_value_bytes: | |
3092 | |
3093 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3094 "grpc value: len:%uz h:%d last:%uz, rest:%uz", | |
3095 ctx->field_length, | |
3096 ctx->field_huffman, | |
3097 last - p, | |
3098 ctx->rest - (p - b->pos)); | |
3099 | |
3100 size = ngx_min(last - p, (ssize_t) ctx->field_rest); | |
3101 ctx->field_rest -= size; | |
3102 | |
3103 if (ctx->field_huffman) { | |
3104 if (ngx_http_v2_huff_decode(&ctx->field_state, p, size, | |
3105 &ctx->field_end, | |
3106 ctx->field_rest == 0, | |
3107 r->connection->log) | |
3108 != NGX_OK) | |
3109 { | |
3110 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3111 "upstream sent invalid encoded header"); | |
3112 return NGX_ERROR; | |
3113 } | |
3114 | |
3115 ctx->value.len = ctx->field_end - ctx->value.data; | |
3116 ctx->value.data[ctx->value.len] = '\0'; | |
3117 | |
3118 } else { | |
7240
413189f03c8d
gRPC: fixed parsing response headers split on CONTINUATION frames.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7235
diff
changeset
|
3119 ctx->field_end = ngx_cpymem(ctx->field_end, p, size); |
7233 | 3120 ctx->value.data[ctx->value.len] = '\0'; |
3121 } | |
3122 | |
3123 p += size - 1; | |
3124 | |
3125 if (ctx->field_rest == 0) { | |
3126 goto done; | |
3127 } | |
3128 | |
3129 break; | |
3130 } | |
3131 | |
3132 continue; | |
3133 | |
3134 done: | |
3135 | |
3136 p++; | |
3137 ctx->rest -= p - b->pos; | |
3138 ctx->fragment_state = sw_start; | |
3139 b->pos = p; | |
3140 | |
3141 if (ctx->index) { | |
3142 ctx->name = *ngx_http_v2_get_static_name(ctx->index); | |
3143 } | |
3144 | |
3145 if (ctx->index && !ctx->literal) { | |
3146 ctx->value = *ngx_http_v2_get_static_value(ctx->index); | |
3147 } | |
3148 | |
3149 if (!ctx->index) { | |
3150 if (ngx_http_grpc_validate_header_name(r, &ctx->name) != NGX_OK) { | |
3151 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3152 "upstream sent invalid header: \"%V: %V\"", | |
3153 &ctx->name, &ctx->value); | |
3154 return NGX_ERROR; | |
3155 } | |
3156 } | |
3157 | |
3158 if (!ctx->index || ctx->literal) { | |
3159 if (ngx_http_grpc_validate_header_value(r, &ctx->value) != NGX_OK) { | |
3160 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3161 "upstream sent invalid header: \"%V: %V\"", | |
3162 &ctx->name, &ctx->value); | |
3163 return NGX_ERROR; | |
3164 } | |
3165 } | |
3166 | |
3167 return NGX_OK; | |
3168 } | |
3169 | |
3170 ctx->rest -= p - b->pos; | |
3171 ctx->fragment_state = state; | |
3172 b->pos = p; | |
3173 | |
3174 if (ctx->rest > ctx->padding) { | |
3175 return NGX_AGAIN; | |
3176 } | |
3177 | |
3178 return NGX_DONE; | |
3179 } | |
3180 | |
3181 | |
3182 static ngx_int_t | |
3183 ngx_http_grpc_validate_header_name(ngx_http_request_t *r, ngx_str_t *s) | |
3184 { | |
3185 u_char ch; | |
3186 ngx_uint_t i; | |
3187 | |
3188 for (i = 0; i < s->len; i++) { | |
3189 ch = s->data[i]; | |
3190 | |
3191 if (ch == ':' && i > 0) { | |
3192 return NGX_ERROR; | |
3193 } | |
3194 | |
3195 if (ch >= 'A' && ch <= 'Z') { | |
3196 return NGX_ERROR; | |
3197 } | |
3198 | |
3199 if (ch == '\0' || ch == CR || ch == LF) { | |
3200 return NGX_ERROR; | |
3201 } | |
3202 } | |
3203 | |
3204 return NGX_OK; | |
3205 } | |
3206 | |
3207 | |
3208 static ngx_int_t | |
3209 ngx_http_grpc_validate_header_value(ngx_http_request_t *r, ngx_str_t *s) | |
3210 { | |
3211 u_char ch; | |
3212 ngx_uint_t i; | |
3213 | |
3214 for (i = 0; i < s->len; i++) { | |
3215 ch = s->data[i]; | |
3216 | |
3217 if (ch == '\0' || ch == CR || ch == LF) { | |
3218 return NGX_ERROR; | |
3219 } | |
3220 } | |
3221 | |
3222 return NGX_OK; | |
3223 } | |
3224 | |
3225 | |
3226 static ngx_int_t | |
3227 ngx_http_grpc_parse_rst_stream(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
3228 ngx_buf_t *b) | |
3229 { | |
3230 u_char ch, *p, *last; | |
3231 enum { | |
3232 sw_start = 0, | |
3233 sw_error_2, | |
3234 sw_error_3, | |
3235 sw_error_4 | |
3236 } state; | |
3237 | |
3238 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
3239 last = b->last; | |
3240 | |
3241 } else { | |
3242 last = b->pos + ctx->rest; | |
3243 } | |
3244 | |
3245 state = ctx->frame_state; | |
3246 | |
3247 if (state == sw_start) { | |
3248 if (ctx->rest != 4) { | |
3249 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3250 "upstream sent rst stream frame " | |
3251 "with invalid length: %uz", | |
3252 ctx->rest); | |
3253 return NGX_ERROR; | |
3254 } | |
3255 } | |
3256 | |
3257 for (p = b->pos; p < last; p++) { | |
3258 ch = *p; | |
3259 | |
3260 #if 0 | |
3261 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3262 "grpc rst byte: %02Xd s:%d", ch, state); | |
3263 #endif | |
3264 | |
3265 switch (state) { | |
3266 | |
3267 case sw_start: | |
7249
070c972336c4
gRPC: fixed possible sign extension of error and setting_value.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7242
diff
changeset
|
3268 ctx->error = (ngx_uint_t) ch << 24; |
7233 | 3269 state = sw_error_2; |
3270 break; | |
3271 | |
3272 case sw_error_2: | |
3273 ctx->error |= ch << 16; | |
3274 state = sw_error_3; | |
3275 break; | |
3276 | |
3277 case sw_error_3: | |
3278 ctx->error |= ch << 8; | |
3279 state = sw_error_4; | |
3280 break; | |
3281 | |
3282 case sw_error_4: | |
3283 ctx->error |= ch; | |
3284 state = sw_start; | |
3285 | |
3286 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3287 "grpc error: %ui", ctx->error); | |
3288 | |
3289 break; | |
3290 } | |
3291 } | |
3292 | |
3293 ctx->rest -= p - b->pos; | |
3294 ctx->frame_state = state; | |
3295 b->pos = p; | |
3296 | |
3297 if (ctx->rest > 0) { | |
3298 return NGX_AGAIN; | |
3299 } | |
3300 | |
3301 return NGX_OK; | |
3302 } | |
3303 | |
3304 | |
3305 static ngx_int_t | |
3306 ngx_http_grpc_parse_goaway(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
3307 ngx_buf_t *b) | |
3308 { | |
3309 u_char ch, *p, *last; | |
3310 enum { | |
3311 sw_start = 0, | |
3312 sw_last_stream_id_2, | |
3313 sw_last_stream_id_3, | |
3314 sw_last_stream_id_4, | |
3315 sw_error, | |
3316 sw_error_2, | |
3317 sw_error_3, | |
3318 sw_error_4, | |
3319 sw_debug | |
3320 } state; | |
3321 | |
3322 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
3323 last = b->last; | |
3324 | |
3325 } else { | |
3326 last = b->pos + ctx->rest; | |
3327 } | |
3328 | |
3329 state = ctx->frame_state; | |
3330 | |
3331 if (state == sw_start) { | |
3332 | |
3333 if (ctx->stream_id) { | |
3334 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3335 "upstream sent goaway frame " | |
3336 "with non-zero stream id: %ui", | |
3337 ctx->stream_id); | |
3338 return NGX_ERROR; | |
3339 } | |
3340 | |
3341 if (ctx->rest < 8) { | |
3342 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3343 "upstream sent goaway frame " | |
3344 "with invalid length: %uz", | |
3345 ctx->rest); | |
3346 return NGX_ERROR; | |
3347 } | |
3348 } | |
3349 | |
3350 for (p = b->pos; p < last; p++) { | |
3351 ch = *p; | |
3352 | |
3353 #if 0 | |
3354 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3355 "grpc goaway byte: %02Xd s:%d", ch, state); | |
3356 #endif | |
3357 | |
3358 switch (state) { | |
3359 | |
3360 case sw_start: | |
3361 ctx->stream_id = (ch & 0x7f) << 24; | |
3362 state = sw_last_stream_id_2; | |
3363 break; | |
3364 | |
3365 case sw_last_stream_id_2: | |
3366 ctx->stream_id |= ch << 16; | |
3367 state = sw_last_stream_id_3; | |
3368 break; | |
3369 | |
3370 case sw_last_stream_id_3: | |
3371 ctx->stream_id |= ch << 8; | |
3372 state = sw_last_stream_id_4; | |
3373 break; | |
3374 | |
3375 case sw_last_stream_id_4: | |
3376 ctx->stream_id |= ch; | |
3377 state = sw_error; | |
3378 break; | |
3379 | |
3380 case sw_error: | |
7249
070c972336c4
gRPC: fixed possible sign extension of error and setting_value.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7242
diff
changeset
|
3381 ctx->error = (ngx_uint_t) ch << 24; |
7233 | 3382 state = sw_error_2; |
3383 break; | |
3384 | |
3385 case sw_error_2: | |
3386 ctx->error |= ch << 16; | |
3387 state = sw_error_3; | |
3388 break; | |
3389 | |
3390 case sw_error_3: | |
3391 ctx->error |= ch << 8; | |
3392 state = sw_error_4; | |
3393 break; | |
3394 | |
3395 case sw_error_4: | |
3396 ctx->error |= ch; | |
3397 state = sw_debug; | |
3398 break; | |
3399 | |
3400 case sw_debug: | |
3401 break; | |
3402 } | |
3403 } | |
3404 | |
3405 ctx->rest -= p - b->pos; | |
3406 ctx->frame_state = state; | |
3407 b->pos = p; | |
3408 | |
3409 if (ctx->rest > 0) { | |
3410 return NGX_AGAIN; | |
3411 } | |
3412 | |
3413 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3414 "grpc goaway: %ui, stream %ui", | |
3415 ctx->error, ctx->stream_id); | |
3416 | |
3417 ctx->state = ngx_http_grpc_st_start; | |
3418 | |
3419 return NGX_OK; | |
3420 } | |
3421 | |
3422 | |
3423 static ngx_int_t | |
3424 ngx_http_grpc_parse_window_update(ngx_http_request_t *r, | |
3425 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b) | |
3426 { | |
3427 u_char ch, *p, *last; | |
3428 enum { | |
3429 sw_start = 0, | |
3430 sw_size_2, | |
3431 sw_size_3, | |
3432 sw_size_4 | |
3433 } state; | |
3434 | |
3435 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
3436 last = b->last; | |
3437 | |
3438 } else { | |
3439 last = b->pos + ctx->rest; | |
3440 } | |
3441 | |
3442 state = ctx->frame_state; | |
3443 | |
3444 if (state == sw_start) { | |
3445 if (ctx->rest != 4) { | |
3446 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3447 "upstream sent window update frame " | |
3448 "with invalid length: %uz", | |
3449 ctx->rest); | |
3450 return NGX_ERROR; | |
3451 } | |
3452 } | |
3453 | |
3454 for (p = b->pos; p < last; p++) { | |
3455 ch = *p; | |
3456 | |
3457 #if 0 | |
3458 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3459 "grpc window update byte: %02Xd s:%d", ch, state); | |
3460 #endif | |
3461 | |
3462 switch (state) { | |
3463 | |
3464 case sw_start: | |
3465 ctx->window_update = (ch & 0x7f) << 24; | |
3466 state = sw_size_2; | |
3467 break; | |
3468 | |
3469 case sw_size_2: | |
3470 ctx->window_update |= ch << 16; | |
3471 state = sw_size_3; | |
3472 break; | |
3473 | |
3474 case sw_size_3: | |
3475 ctx->window_update |= ch << 8; | |
3476 state = sw_size_4; | |
3477 break; | |
3478 | |
3479 case sw_size_4: | |
3480 ctx->window_update |= ch; | |
3481 state = sw_start; | |
3482 break; | |
3483 } | |
3484 } | |
3485 | |
3486 ctx->rest -= p - b->pos; | |
3487 ctx->frame_state = state; | |
3488 b->pos = p; | |
3489 | |
3490 if (ctx->rest > 0) { | |
3491 return NGX_AGAIN; | |
3492 } | |
3493 | |
3494 ctx->state = ngx_http_grpc_st_start; | |
3495 | |
3496 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3497 "grpc window update: %ui", ctx->window_update); | |
3498 | |
3499 if (ctx->stream_id) { | |
3500 | |
3501 if (ctx->window_update > (size_t) NGX_HTTP_V2_MAX_WINDOW | |
3502 - ctx->send_window) | |
3503 { | |
3504 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3505 "upstream sent too large window update"); | |
3506 return NGX_ERROR; | |
3507 } | |
3508 | |
3509 ctx->send_window += ctx->window_update; | |
3510 | |
3511 } else { | |
3512 | |
3513 if (ctx->window_update > NGX_HTTP_V2_MAX_WINDOW | |
3514 - ctx->connection->send_window) | |
3515 { | |
3516 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3517 "upstream sent too large window update"); | |
3518 return NGX_ERROR; | |
3519 } | |
3520 | |
3521 ctx->connection->send_window += ctx->window_update; | |
3522 } | |
3523 | |
3524 return NGX_OK; | |
3525 } | |
3526 | |
3527 | |
3528 static ngx_int_t | |
3529 ngx_http_grpc_parse_settings(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
3530 ngx_buf_t *b) | |
3531 { | |
3532 u_char ch, *p, *last; | |
3533 ssize_t window_update; | |
3534 enum { | |
3535 sw_start = 0, | |
3536 sw_id, | |
3537 sw_id_2, | |
3538 sw_value, | |
3539 sw_value_2, | |
3540 sw_value_3, | |
3541 sw_value_4 | |
3542 } state; | |
3543 | |
3544 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
3545 last = b->last; | |
3546 | |
3547 } else { | |
3548 last = b->pos + ctx->rest; | |
3549 } | |
3550 | |
3551 state = ctx->frame_state; | |
3552 | |
3553 if (state == sw_start) { | |
3554 | |
3555 if (ctx->stream_id) { | |
3556 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3557 "upstream sent settings frame " | |
3558 "with non-zero stream id: %ui", | |
3559 ctx->stream_id); | |
3560 return NGX_ERROR; | |
3561 } | |
3562 | |
3563 if (ctx->flags & NGX_HTTP_V2_ACK_FLAG) { | |
3564 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3565 "grpc settings ack"); | |
3566 | |
3567 if (ctx->rest != 0) { | |
3568 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3569 "upstream sent settings frame " | |
3570 "with ack flag and non-zero length: %uz", | |
3571 ctx->rest); | |
3572 return NGX_ERROR; | |
3573 } | |
3574 | |
3575 ctx->state = ngx_http_grpc_st_start; | |
3576 | |
3577 return NGX_OK; | |
3578 } | |
3579 | |
3580 if (ctx->rest % 6 != 0) { | |
3581 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3582 "upstream sent settings frame " | |
3583 "with invalid length: %uz", | |
3584 ctx->rest); | |
3585 return NGX_ERROR; | |
3586 } | |
3587 } | |
3588 | |
3589 for (p = b->pos; p < last; p++) { | |
3590 ch = *p; | |
3591 | |
3592 #if 0 | |
3593 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3594 "grpc settings byte: %02Xd s:%d", ch, state); | |
3595 #endif | |
3596 | |
3597 switch (state) { | |
3598 | |
3599 case sw_start: | |
3600 case sw_id: | |
3601 ctx->setting_id = ch << 8; | |
3602 state = sw_id_2; | |
3603 break; | |
3604 | |
3605 case sw_id_2: | |
3606 ctx->setting_id |= ch; | |
3607 state = sw_value; | |
3608 break; | |
3609 | |
3610 case sw_value: | |
7249
070c972336c4
gRPC: fixed possible sign extension of error and setting_value.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7242
diff
changeset
|
3611 ctx->setting_value = (ngx_uint_t) ch << 24; |
7233 | 3612 state = sw_value_2; |
3613 break; | |
3614 | |
3615 case sw_value_2: | |
3616 ctx->setting_value |= ch << 16; | |
3617 state = sw_value_3; | |
3618 break; | |
3619 | |
3620 case sw_value_3: | |
3621 ctx->setting_value |= ch << 8; | |
3622 state = sw_value_4; | |
3623 break; | |
3624 | |
3625 case sw_value_4: | |
3626 ctx->setting_value |= ch; | |
3627 state = sw_id; | |
3628 | |
3629 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3630 "grpc setting: %ui %ui", | |
3631 ctx->setting_id, ctx->setting_value); | |
3632 | |
3633 /* | |
3634 * The following settings are defined by the protocol: | |
3635 * | |
3636 * SETTINGS_HEADER_TABLE_SIZE, SETTINGS_ENABLE_PUSH, | |
3637 * SETTINGS_MAX_CONCURRENT_STREAMS, SETTINGS_INITIAL_WINDOW_SIZE, | |
3638 * SETTINGS_MAX_FRAME_SIZE, SETTINGS_MAX_HEADER_LIST_SIZE | |
3639 * | |
3640 * Only SETTINGS_INITIAL_WINDOW_SIZE seems to be needed in | |
3641 * a simple client. | |
3642 */ | |
3643 | |
3644 if (ctx->setting_id == 0x04) { | |
3645 /* SETTINGS_INITIAL_WINDOW_SIZE */ | |
3646 | |
3647 if (ctx->setting_value > NGX_HTTP_V2_MAX_WINDOW) { | |
3648 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3649 "upstream sent settings frame " | |
3650 "with too large initial window size: %ui", | |
3651 ctx->setting_value); | |
3652 return NGX_ERROR; | |
3653 } | |
3654 | |
3655 window_update = ctx->setting_value | |
3656 - ctx->connection->init_window; | |
3657 ctx->connection->init_window = ctx->setting_value; | |
3658 | |
3659 if (ctx->send_window > 0 | |
3660 && window_update > (ssize_t) NGX_HTTP_V2_MAX_WINDOW | |
3661 - ctx->send_window) | |
3662 { | |
3663 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3664 "upstream sent settings frame " | |
3665 "with too large initial window size: %ui", | |
3666 ctx->setting_value); | |
3667 return NGX_ERROR; | |
3668 } | |
3669 | |
3670 ctx->send_window += window_update; | |
3671 } | |
3672 | |
3673 break; | |
3674 } | |
3675 } | |
3676 | |
3677 ctx->rest -= p - b->pos; | |
3678 ctx->frame_state = state; | |
3679 b->pos = p; | |
3680 | |
3681 if (ctx->rest > 0) { | |
3682 return NGX_AGAIN; | |
3683 } | |
3684 | |
3685 ctx->state = ngx_http_grpc_st_start; | |
3686 | |
3687 return ngx_http_grpc_send_settings_ack(r, ctx); | |
3688 } | |
3689 | |
3690 | |
3691 static ngx_int_t | |
3692 ngx_http_grpc_parse_ping(ngx_http_request_t *r, | |
3693 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b) | |
3694 { | |
3695 u_char ch, *p, *last; | |
3696 enum { | |
3697 sw_start = 0, | |
3698 sw_data_2, | |
3699 sw_data_3, | |
3700 sw_data_4, | |
3701 sw_data_5, | |
3702 sw_data_6, | |
3703 sw_data_7, | |
3704 sw_data_8 | |
3705 } state; | |
3706 | |
3707 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
3708 last = b->last; | |
3709 | |
3710 } else { | |
3711 last = b->pos + ctx->rest; | |
3712 } | |
3713 | |
3714 state = ctx->frame_state; | |
3715 | |
3716 if (state == sw_start) { | |
3717 | |
3718 if (ctx->stream_id) { | |
3719 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3720 "upstream sent ping frame " | |
3721 "with non-zero stream id: %ui", | |
3722 ctx->stream_id); | |
3723 return NGX_ERROR; | |
3724 } | |
3725 | |
3726 if (ctx->rest != 8) { | |
3727 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3728 "upstream sent ping frame " | |
3729 "with invalid length: %uz", | |
3730 ctx->rest); | |
3731 return NGX_ERROR; | |
3732 } | |
3733 | |
3734 if (ctx->flags & NGX_HTTP_V2_ACK_FLAG) { | |
3735 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3736 "upstream sent ping frame with ack flag"); | |
3737 return NGX_ERROR; | |
3738 } | |
3739 } | |
3740 | |
3741 for (p = b->pos; p < last; p++) { | |
3742 ch = *p; | |
3743 | |
3744 #if 0 | |
3745 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3746 "grpc ping byte: %02Xd s:%d", ch, state); | |
3747 #endif | |
3748 | |
3749 if (state < sw_data_8) { | |
3750 ctx->ping_data[state] = ch; | |
3751 state++; | |
3752 | |
3753 } else { | |
3754 ctx->ping_data[7] = ch; | |
3755 state = sw_start; | |
3756 | |
3757 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3758 "grpc ping"); | |
3759 } | |
3760 } | |
3761 | |
3762 ctx->rest -= p - b->pos; | |
3763 ctx->frame_state = state; | |
3764 b->pos = p; | |
3765 | |
3766 if (ctx->rest > 0) { | |
3767 return NGX_AGAIN; | |
3768 } | |
3769 | |
3770 ctx->state = ngx_http_grpc_st_start; | |
3771 | |
3772 return ngx_http_grpc_send_ping_ack(r, ctx); | |
3773 } | |
3774 | |
3775 | |
3776 static ngx_int_t | |
3777 ngx_http_grpc_send_settings_ack(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx) | |
3778 { | |
3779 ngx_chain_t *cl, **ll; | |
3780 ngx_http_grpc_frame_t *f; | |
3781 | |
3782 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3783 "grpc send settings ack"); | |
3784 | |
3785 for (cl = ctx->out, ll = &ctx->out; cl; cl = cl->next) { | |
3786 ll = &cl->next; | |
3787 } | |
3788 | |
3789 cl = ngx_http_grpc_get_buf(r, ctx); | |
3790 if (cl == NULL) { | |
3791 return NGX_ERROR; | |
3792 } | |
3793 | |
3794 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
3795 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
3796 | |
3797 f->length_0 = 0; | |
3798 f->length_1 = 0; | |
3799 f->length_2 = 0; | |
3800 f->type = NGX_HTTP_V2_SETTINGS_FRAME; | |
3801 f->flags = NGX_HTTP_V2_ACK_FLAG; | |
3802 f->stream_id_0 = 0; | |
3803 f->stream_id_1 = 0; | |
3804 f->stream_id_2 = 0; | |
3805 f->stream_id_3 = 0; | |
3806 | |
3807 *ll = cl; | |
3808 | |
3809 return NGX_OK; | |
3810 } | |
3811 | |
3812 | |
3813 static ngx_int_t | |
3814 ngx_http_grpc_send_ping_ack(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx) | |
3815 { | |
3816 ngx_chain_t *cl, **ll; | |
3817 ngx_http_grpc_frame_t *f; | |
3818 | |
3819 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3820 "grpc send ping ack"); | |
3821 | |
3822 for (cl = ctx->out, ll = &ctx->out; cl; cl = cl->next) { | |
3823 ll = &cl->next; | |
3824 } | |
3825 | |
3826 cl = ngx_http_grpc_get_buf(r, ctx); | |
3827 if (cl == NULL) { | |
3828 return NGX_ERROR; | |
3829 } | |
3830 | |
3831 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
3832 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
3833 | |
3834 f->length_0 = 0; | |
3835 f->length_1 = 0; | |
3836 f->length_2 = 8; | |
3837 f->type = NGX_HTTP_V2_PING_FRAME; | |
3838 f->flags = NGX_HTTP_V2_ACK_FLAG; | |
3839 f->stream_id_0 = 0; | |
3840 f->stream_id_1 = 0; | |
3841 f->stream_id_2 = 0; | |
3842 f->stream_id_3 = 0; | |
3843 | |
3844 cl->buf->last = ngx_copy(cl->buf->last, ctx->ping_data, 8); | |
3845 | |
3846 *ll = cl; | |
3847 | |
3848 return NGX_OK; | |
3849 } | |
3850 | |
3851 | |
3852 static ngx_int_t | |
3853 ngx_http_grpc_send_window_update(ngx_http_request_t *r, | |
3854 ngx_http_grpc_ctx_t *ctx) | |
3855 { | |
3856 size_t n; | |
3857 ngx_chain_t *cl, **ll; | |
3858 ngx_http_grpc_frame_t *f; | |
3859 | |
3860 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3861 "grpc send window update: %uz %uz", | |
3862 ctx->connection->recv_window, ctx->recv_window); | |
3863 | |
3864 for (cl = ctx->out, ll = &ctx->out; cl; cl = cl->next) { | |
3865 ll = &cl->next; | |
3866 } | |
3867 | |
3868 cl = ngx_http_grpc_get_buf(r, ctx); | |
3869 if (cl == NULL) { | |
3870 return NGX_ERROR; | |
3871 } | |
3872 | |
3873 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
3874 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
3875 | |
3876 f->length_0 = 0; | |
3877 f->length_1 = 0; | |
3878 f->length_2 = 4; | |
3879 f->type = NGX_HTTP_V2_WINDOW_UPDATE_FRAME; | |
3880 f->flags = 0; | |
3881 f->stream_id_0 = 0; | |
3882 f->stream_id_1 = 0; | |
3883 f->stream_id_2 = 0; | |
3884 f->stream_id_3 = 0; | |
3885 | |
3886 n = NGX_HTTP_V2_MAX_WINDOW - ctx->connection->recv_window; | |
3887 ctx->connection->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
3888 | |
3889 *cl->buf->last++ = (u_char) ((n >> 24) & 0xff); | |
3890 *cl->buf->last++ = (u_char) ((n >> 16) & 0xff); | |
3891 *cl->buf->last++ = (u_char) ((n >> 8) & 0xff); | |
3892 *cl->buf->last++ = (u_char) (n & 0xff); | |
3893 | |
3894 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
3895 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
3896 | |
3897 f->length_0 = 0; | |
3898 f->length_1 = 0; | |
3899 f->length_2 = 4; | |
3900 f->type = NGX_HTTP_V2_WINDOW_UPDATE_FRAME; | |
3901 f->flags = 0; | |
3902 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
3903 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
3904 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
3905 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
3906 | |
3907 n = NGX_HTTP_V2_MAX_WINDOW - ctx->recv_window; | |
3908 ctx->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
3909 | |
3910 *cl->buf->last++ = (u_char) ((n >> 24) & 0xff); | |
3911 *cl->buf->last++ = (u_char) ((n >> 16) & 0xff); | |
3912 *cl->buf->last++ = (u_char) ((n >> 8) & 0xff); | |
3913 *cl->buf->last++ = (u_char) (n & 0xff); | |
3914 | |
3915 *ll = cl; | |
3916 | |
3917 return NGX_OK; | |
3918 } | |
3919 | |
3920 | |
3921 static ngx_chain_t * | |
3922 ngx_http_grpc_get_buf(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx) | |
3923 { | |
7305
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diff
changeset
|
3924 u_char *start; |
7233 | 3925 ngx_buf_t *b; |
3926 ngx_chain_t *cl; | |
3927 | |
3928 cl = ngx_chain_get_free_buf(r->pool, &ctx->free); | |
3929 if (cl == NULL) { | |
3930 return NULL; | |
3931 } | |
3932 | |
3933 b = cl->buf; | |
7305
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|
3934 start = b->start; |
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3935 |
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|
3936 if (start == NULL) { |
7233 | 3937 |
3938 /* | |
3939 * each buffer is large enough to hold two window update | |
3940 * frames in a row | |
3941 */ | |
3942 | |
7305
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3943 start = ngx_palloc(r->pool, 2 * sizeof(ngx_http_grpc_frame_t) + 8); |
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3944 if (start == NULL) { |
7233 | 3945 return NULL; |
3946 } | |
3947 | |
3948 } | |
3949 | |
7305
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3950 ngx_memzero(b, sizeof(ngx_buf_t)); |
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3951 |
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3952 b->start = start; |
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3953 b->pos = start; |
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3954 b->last = start; |
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3955 b->end = start + 2 * sizeof(ngx_http_grpc_frame_t) + 8; |
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3956 |
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3957 b->tag = (ngx_buf_tag_t) &ngx_http_grpc_body_output_filter; |
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3958 b->temporary = 1; |
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|
3959 b->flush = 1; |
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3960 |
7233 | 3961 return cl; |
3962 } | |
3963 | |
3964 | |
3965 static ngx_http_grpc_ctx_t * | |
3966 ngx_http_grpc_get_ctx(ngx_http_request_t *r) | |
3967 { | |
3968 ngx_http_grpc_ctx_t *ctx; | |
3969 ngx_http_upstream_t *u; | |
3970 | |
3971 ctx = ngx_http_get_module_ctx(r, ngx_http_grpc_module); | |
3972 | |
3973 if (ctx->connection == NULL) { | |
3974 u = r->upstream; | |
3975 | |
3976 if (ngx_http_grpc_get_connection_data(r, ctx, &u->peer) != NGX_OK) { | |
3977 return NULL; | |
3978 } | |
3979 } | |
3980 | |
3981 return ctx; | |
3982 } | |
3983 | |
3984 | |
3985 static ngx_int_t | |
3986 ngx_http_grpc_get_connection_data(ngx_http_request_t *r, | |
3987 ngx_http_grpc_ctx_t *ctx, ngx_peer_connection_t *pc) | |
3988 { | |
3989 ngx_connection_t *c; | |
3990 ngx_pool_cleanup_t *cln; | |
3991 | |
3992 c = pc->connection; | |
3993 | |
3994 if (pc->cached) { | |
3995 | |
3996 /* | |
3997 * for cached connections, connection data can be found | |
3998 * in the cleanup handler | |
3999 */ | |
4000 | |
4001 for (cln = c->pool->cleanup; cln; cln = cln->next) { | |
4002 if (cln->handler == ngx_http_grpc_cleanup) { | |
4003 ctx->connection = cln->data; | |
4004 break; | |
4005 } | |
4006 } | |
4007 | |
4008 if (ctx->connection == NULL) { | |
4009 ngx_log_error(NGX_LOG_ERR, c->log, 0, | |
4010 "no connection data found for " | |
4011 "keepalive http2 connection"); | |
4012 return NGX_ERROR; | |
4013 } | |
4014 | |
4015 ctx->send_window = ctx->connection->init_window; | |
4016 ctx->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
4017 | |
4018 ctx->connection->last_stream_id += 2; | |
4019 ctx->id = ctx->connection->last_stream_id; | |
4020 | |
4021 return NGX_OK; | |
4022 } | |
4023 | |
4024 cln = ngx_pool_cleanup_add(c->pool, sizeof(ngx_http_grpc_conn_t)); | |
4025 if (cln == NULL) { | |
4026 return NGX_ERROR; | |
4027 } | |
4028 | |
4029 cln->handler = ngx_http_grpc_cleanup; | |
4030 ctx->connection = cln->data; | |
4031 | |
4032 ctx->connection->init_window = NGX_HTTP_V2_DEFAULT_WINDOW; | |
4033 ctx->connection->send_window = NGX_HTTP_V2_DEFAULT_WINDOW; | |
4034 ctx->connection->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
4035 | |
4036 ctx->send_window = NGX_HTTP_V2_DEFAULT_WINDOW; | |
4037 ctx->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
4038 | |
4039 ctx->id = 1; | |
4040 ctx->connection->last_stream_id = 1; | |
4041 | |
4042 return NGX_OK; | |
4043 } | |
4044 | |
4045 | |
4046 static void | |
4047 ngx_http_grpc_cleanup(void *data) | |
4048 { | |
4049 #if 0 | |
4050 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
4051 "grpc cleanup"); | |
4052 #endif | |
4053 return; | |
4054 } | |
4055 | |
4056 | |
4057 static void | |
4058 ngx_http_grpc_abort_request(ngx_http_request_t *r) | |
4059 { | |
4060 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
4061 "abort grpc request"); | |
4062 return; | |
4063 } | |
4064 | |
4065 | |
4066 static void | |
4067 ngx_http_grpc_finalize_request(ngx_http_request_t *r, ngx_int_t rc) | |
4068 { | |
4069 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
4070 "finalize grpc request"); | |
4071 return; | |
4072 } | |
4073 | |
4074 | |
7234
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4075 static ngx_int_t |
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|
4076 ngx_http_grpc_internal_trailers_variable(ngx_http_request_t *r, |
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|
4077 ngx_http_variable_value_t *v, uintptr_t data) |
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|
4078 { |
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|
4079 ngx_table_elt_t *te; |
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|
4080 |
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|
4081 te = r->headers_in.te; |
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|
4082 |
c693daca57f7
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|
4083 if (te == NULL) { |
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|
4084 v->not_found = 1; |
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|
4085 return NGX_OK; |
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|
4086 } |
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|
4087 |
c693daca57f7
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|
4088 if (ngx_strlcasestrn(te->value.data, te->value.data + te->value.len, |
c693daca57f7
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|
4089 (u_char *) "trailers", 8 - 1) |
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|
4090 == NULL) |
c693daca57f7
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|
4091 { |
c693daca57f7
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changeset
|
4092 v->not_found = 1; |
c693daca57f7
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7233
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|
4093 return NGX_OK; |
c693daca57f7
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|
4094 } |
c693daca57f7
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changeset
|
4095 |
c693daca57f7
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changeset
|
4096 v->valid = 1; |
c693daca57f7
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7233
diff
changeset
|
4097 v->no_cacheable = 0; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4098 v->not_found = 0; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4099 |
c693daca57f7
gRPC: special handling of the TE request header.
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parents:
7233
diff
changeset
|
4100 v->data = (u_char *) "trailers"; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4101 v->len = sizeof("trailers") - 1; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4102 |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4103 return NGX_OK; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4104 } |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4105 |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4106 |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4107 static ngx_int_t |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4108 ngx_http_grpc_add_variables(ngx_conf_t *cf) |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4109 { |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4110 ngx_http_variable_t *var, *v; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4111 |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4112 for (v = ngx_http_grpc_vars; v->name.len; v++) { |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4113 var = ngx_http_add_variable(cf, &v->name, v->flags); |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4114 if (var == NULL) { |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4115 return NGX_ERROR; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4116 } |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4117 |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4118 var->get_handler = v->get_handler; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4119 var->data = v->data; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4120 } |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4121 |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4122 return NGX_OK; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4123 } |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4124 |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
4125 |
7233 | 4126 static void * |
4127 ngx_http_grpc_create_loc_conf(ngx_conf_t *cf) | |
4128 { | |
4129 ngx_http_grpc_loc_conf_t *conf; | |
4130 | |
4131 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_grpc_loc_conf_t)); | |
4132 if (conf == NULL) { | |
4133 return NULL; | |
4134 } | |
4135 | |
4136 /* | |
4137 * set by ngx_pcalloc(): | |
4138 * | |
4139 * conf->upstream.ignore_headers = 0; | |
4140 * conf->upstream.next_upstream = 0; | |
4141 * conf->upstream.hide_headers_hash = { NULL, 0 }; | |
4142 * conf->upstream.ssl_name = NULL; | |
4143 * | |
4144 * conf->headers_source = NULL; | |
4145 * conf->headers.lengths = NULL; | |
4146 * conf->headers.values = NULL; | |
4147 * conf->headers.hash = { NULL, 0 }; | |
4148 * conf->host = { 0, NULL }; | |
4149 * conf->host_set = 0; | |
4150 * conf->ssl = 0; | |
4151 * conf->ssl_protocols = 0; | |
4152 * conf->ssl_ciphers = { 0, NULL }; | |
4153 * conf->ssl_trusted_certificate = { 0, NULL }; | |
4154 * conf->ssl_crl = { 0, NULL }; | |
4155 * conf->ssl_certificate = { 0, NULL }; | |
4156 * conf->ssl_certificate_key = { 0, NULL }; | |
4157 */ | |
4158 | |
4159 conf->upstream.local = NGX_CONF_UNSET_PTR; | |
7371
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4160 conf->upstream.socket_keepalive = NGX_CONF_UNSET; |
7233 | 4161 conf->upstream.next_upstream_tries = NGX_CONF_UNSET_UINT; |
4162 conf->upstream.connect_timeout = NGX_CONF_UNSET_MSEC; | |
4163 conf->upstream.send_timeout = NGX_CONF_UNSET_MSEC; | |
4164 conf->upstream.read_timeout = NGX_CONF_UNSET_MSEC; | |
4165 conf->upstream.next_upstream_timeout = NGX_CONF_UNSET_MSEC; | |
4166 | |
4167 conf->upstream.buffer_size = NGX_CONF_UNSET_SIZE; | |
4168 | |
4169 conf->upstream.hide_headers = NGX_CONF_UNSET_PTR; | |
4170 conf->upstream.pass_headers = NGX_CONF_UNSET_PTR; | |
4171 | |
4172 conf->upstream.intercept_errors = NGX_CONF_UNSET; | |
4173 | |
4174 #if (NGX_HTTP_SSL) | |
4175 conf->upstream.ssl_session_reuse = NGX_CONF_UNSET; | |
4176 conf->upstream.ssl_server_name = NGX_CONF_UNSET; | |
4177 conf->upstream.ssl_verify = NGX_CONF_UNSET; | |
4178 conf->ssl_verify_depth = NGX_CONF_UNSET_UINT; | |
4179 conf->ssl_passwords = NGX_CONF_UNSET_PTR; | |
4180 #endif | |
4181 | |
4182 /* the hardcoded values */ | |
4183 conf->upstream.cyclic_temp_file = 0; | |
4184 conf->upstream.buffering = 0; | |
4185 conf->upstream.ignore_client_abort = 0; | |
4186 conf->upstream.send_lowat = 0; | |
4187 conf->upstream.bufs.num = 0; | |
4188 conf->upstream.busy_buffers_size = 0; | |
4189 conf->upstream.max_temp_file_size = 0; | |
4190 conf->upstream.temp_file_write_size = 0; | |
4191 conf->upstream.pass_request_headers = 1; | |
4192 conf->upstream.pass_request_body = 1; | |
4193 conf->upstream.force_ranges = 0; | |
4194 conf->upstream.pass_trailers = 1; | |
4195 conf->upstream.preserve_output = 1; | |
4196 | |
4197 ngx_str_set(&conf->upstream.module, "grpc"); | |
4198 | |
4199 return conf; | |
4200 } | |
4201 | |
4202 | |
4203 static char * | |
4204 ngx_http_grpc_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) | |
4205 { | |
4206 ngx_http_grpc_loc_conf_t *prev = parent; | |
4207 ngx_http_grpc_loc_conf_t *conf = child; | |
4208 | |
4209 ngx_int_t rc; | |
4210 ngx_hash_init_t hash; | |
4211 ngx_http_core_loc_conf_t *clcf; | |
4212 | |
4213 ngx_conf_merge_ptr_value(conf->upstream.local, | |
4214 prev->upstream.local, NULL); | |
4215 | |
7371
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4216 ngx_conf_merge_value(conf->upstream.socket_keepalive, |
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4217 prev->upstream.socket_keepalive, 0); |
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4218 |
7233 | 4219 ngx_conf_merge_uint_value(conf->upstream.next_upstream_tries, |
4220 prev->upstream.next_upstream_tries, 0); | |
4221 | |
4222 ngx_conf_merge_msec_value(conf->upstream.connect_timeout, | |
4223 prev->upstream.connect_timeout, 60000); | |
4224 | |
4225 ngx_conf_merge_msec_value(conf->upstream.send_timeout, | |
4226 prev->upstream.send_timeout, 60000); | |
4227 | |
4228 ngx_conf_merge_msec_value(conf->upstream.read_timeout, | |
4229 prev->upstream.read_timeout, 60000); | |
4230 | |
4231 ngx_conf_merge_msec_value(conf->upstream.next_upstream_timeout, | |
4232 prev->upstream.next_upstream_timeout, 0); | |
4233 | |
4234 ngx_conf_merge_size_value(conf->upstream.buffer_size, | |
4235 prev->upstream.buffer_size, | |
4236 (size_t) ngx_pagesize); | |
4237 | |
4238 ngx_conf_merge_bitmask_value(conf->upstream.ignore_headers, | |
4239 prev->upstream.ignore_headers, | |
4240 NGX_CONF_BITMASK_SET); | |
4241 | |
4242 ngx_conf_merge_bitmask_value(conf->upstream.next_upstream, | |
4243 prev->upstream.next_upstream, | |
4244 (NGX_CONF_BITMASK_SET | |
4245 |NGX_HTTP_UPSTREAM_FT_ERROR | |
4246 |NGX_HTTP_UPSTREAM_FT_TIMEOUT)); | |
4247 | |
4248 if (conf->upstream.next_upstream & NGX_HTTP_UPSTREAM_FT_OFF) { | |
4249 conf->upstream.next_upstream = NGX_CONF_BITMASK_SET | |
4250 |NGX_HTTP_UPSTREAM_FT_OFF; | |
4251 } | |
4252 | |
4253 ngx_conf_merge_value(conf->upstream.intercept_errors, | |
4254 prev->upstream.intercept_errors, 0); | |
4255 | |
4256 #if (NGX_HTTP_SSL) | |
4257 | |
4258 ngx_conf_merge_value(conf->upstream.ssl_session_reuse, | |
4259 prev->upstream.ssl_session_reuse, 1); | |
4260 | |
4261 ngx_conf_merge_bitmask_value(conf->ssl_protocols, prev->ssl_protocols, | |
4262 (NGX_CONF_BITMASK_SET|NGX_SSL_TLSv1 | |
4263 |NGX_SSL_TLSv1_1|NGX_SSL_TLSv1_2)); | |
4264 | |
4265 ngx_conf_merge_str_value(conf->ssl_ciphers, prev->ssl_ciphers, | |
4266 "DEFAULT"); | |
4267 | |
4268 if (conf->upstream.ssl_name == NULL) { | |
4269 conf->upstream.ssl_name = prev->upstream.ssl_name; | |
4270 } | |
4271 | |
4272 ngx_conf_merge_value(conf->upstream.ssl_server_name, | |
4273 prev->upstream.ssl_server_name, 0); | |
4274 ngx_conf_merge_value(conf->upstream.ssl_verify, | |
4275 prev->upstream.ssl_verify, 0); | |
4276 ngx_conf_merge_uint_value(conf->ssl_verify_depth, | |
4277 prev->ssl_verify_depth, 1); | |
4278 ngx_conf_merge_str_value(conf->ssl_trusted_certificate, | |
4279 prev->ssl_trusted_certificate, ""); | |
4280 ngx_conf_merge_str_value(conf->ssl_crl, prev->ssl_crl, ""); | |
4281 | |
4282 ngx_conf_merge_str_value(conf->ssl_certificate, | |
4283 prev->ssl_certificate, ""); | |
4284 ngx_conf_merge_str_value(conf->ssl_certificate_key, | |
4285 prev->ssl_certificate_key, ""); | |
4286 ngx_conf_merge_ptr_value(conf->ssl_passwords, prev->ssl_passwords, NULL); | |
4287 | |
4288 if (conf->ssl && ngx_http_grpc_set_ssl(cf, conf) != NGX_OK) { | |
4289 return NGX_CONF_ERROR; | |
4290 } | |
4291 | |
4292 #endif | |
4293 | |
4294 hash.max_size = 512; | |
4295 hash.bucket_size = ngx_align(64, ngx_cacheline_size); | |
4296 hash.name = "grpc_headers_hash"; | |
4297 | |
4298 if (ngx_http_upstream_hide_headers_hash(cf, &conf->upstream, | |
4299 &prev->upstream, ngx_http_grpc_hide_headers, &hash) | |
4300 != NGX_OK) | |
4301 { | |
4302 return NGX_CONF_ERROR; | |
4303 } | |
4304 | |
4305 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); | |
4306 | |
4307 if (clcf->noname && conf->upstream.upstream == NULL) { | |
4308 conf->upstream.upstream = prev->upstream.upstream; | |
4309 conf->host = prev->host; | |
4310 #if (NGX_HTTP_SSL) | |
4311 conf->upstream.ssl = prev->upstream.ssl; | |
4312 #endif | |
4313 } | |
4314 | |
4315 if (clcf->lmt_excpt && clcf->handler == NULL && conf->upstream.upstream) { | |
4316 clcf->handler = ngx_http_grpc_handler; | |
4317 } | |
4318 | |
4319 if (conf->headers_source == NULL) { | |
4320 conf->headers = prev->headers; | |
4321 conf->headers_source = prev->headers_source; | |
4322 conf->host_set = prev->host_set; | |
4323 } | |
4324 | |
4325 rc = ngx_http_grpc_init_headers(cf, conf, &conf->headers, | |
4326 ngx_http_grpc_headers); | |
4327 if (rc != NGX_OK) { | |
4328 return NGX_CONF_ERROR; | |
4329 } | |
4330 | |
4331 /* | |
4332 * special handling to preserve conf->headers in the "http" section | |
4333 * to inherit it to all servers | |
4334 */ | |
4335 | |
4336 if (prev->headers.hash.buckets == NULL | |
4337 && conf->headers_source == prev->headers_source) | |
4338 { | |
4339 prev->headers = conf->headers; | |
4340 prev->host_set = conf->host_set; | |
4341 } | |
4342 | |
4343 return NGX_CONF_OK; | |
4344 } | |
4345 | |
4346 | |
4347 static ngx_int_t | |
4348 ngx_http_grpc_init_headers(ngx_conf_t *cf, ngx_http_grpc_loc_conf_t *conf, | |
4349 ngx_http_grpc_headers_t *headers, ngx_keyval_t *default_headers) | |
4350 { | |
4351 u_char *p; | |
4352 size_t size; | |
4353 uintptr_t *code; | |
4354 ngx_uint_t i; | |
4355 ngx_array_t headers_names, headers_merged; | |
4356 ngx_keyval_t *src, *s, *h; | |
4357 ngx_hash_key_t *hk; | |
4358 ngx_hash_init_t hash; | |
4359 ngx_http_script_compile_t sc; | |
4360 ngx_http_script_copy_code_t *copy; | |
4361 | |
4362 if (headers->hash.buckets) { | |
4363 return NGX_OK; | |
4364 } | |
4365 | |
4366 if (ngx_array_init(&headers_names, cf->temp_pool, 4, sizeof(ngx_hash_key_t)) | |
4367 != NGX_OK) | |
4368 { | |
4369 return NGX_ERROR; | |
4370 } | |
4371 | |
4372 if (ngx_array_init(&headers_merged, cf->temp_pool, 4, sizeof(ngx_keyval_t)) | |
4373 != NGX_OK) | |
4374 { | |
4375 return NGX_ERROR; | |
4376 } | |
4377 | |
4378 headers->lengths = ngx_array_create(cf->pool, 64, 1); | |
4379 if (headers->lengths == NULL) { | |
4380 return NGX_ERROR; | |
4381 } | |
4382 | |
4383 headers->values = ngx_array_create(cf->pool, 512, 1); | |
4384 if (headers->values == NULL) { | |
4385 return NGX_ERROR; | |
4386 } | |
4387 | |
4388 if (conf->headers_source) { | |
4389 | |
4390 src = conf->headers_source->elts; | |
4391 for (i = 0; i < conf->headers_source->nelts; i++) { | |
4392 | |
4393 if (src[i].key.len == 4 | |
4394 && ngx_strncasecmp(src[i].key.data, (u_char *) "Host", 4) == 0) | |
4395 { | |
4396 conf->host_set = 1; | |
4397 } | |
4398 | |
4399 s = ngx_array_push(&headers_merged); | |
4400 if (s == NULL) { | |
4401 return NGX_ERROR; | |
4402 } | |
4403 | |
4404 *s = src[i]; | |
4405 } | |
4406 } | |
4407 | |
4408 h = default_headers; | |
4409 | |
4410 while (h->key.len) { | |
4411 | |
4412 src = headers_merged.elts; | |
4413 for (i = 0; i < headers_merged.nelts; i++) { | |
4414 if (ngx_strcasecmp(h->key.data, src[i].key.data) == 0) { | |
4415 goto next; | |
4416 } | |
4417 } | |
4418 | |
4419 s = ngx_array_push(&headers_merged); | |
4420 if (s == NULL) { | |
4421 return NGX_ERROR; | |
4422 } | |
4423 | |
4424 *s = *h; | |
4425 | |
4426 next: | |
4427 | |
4428 h++; | |
4429 } | |
4430 | |
4431 | |
4432 src = headers_merged.elts; | |
4433 for (i = 0; i < headers_merged.nelts; i++) { | |
4434 | |
4435 hk = ngx_array_push(&headers_names); | |
4436 if (hk == NULL) { | |
4437 return NGX_ERROR; | |
4438 } | |
4439 | |
4440 hk->key = src[i].key; | |
4441 hk->key_hash = ngx_hash_key_lc(src[i].key.data, src[i].key.len); | |
4442 hk->value = (void *) 1; | |
4443 | |
4444 if (src[i].value.len == 0) { | |
4445 continue; | |
4446 } | |
4447 | |
4448 copy = ngx_array_push_n(headers->lengths, | |
4449 sizeof(ngx_http_script_copy_code_t)); | |
4450 if (copy == NULL) { | |
4451 return NGX_ERROR; | |
4452 } | |
4453 | |
7271
9e25a5380a21
Silenced -Wcast-function-type warnings (closes #1546).
Sergey Kandaurov <pluknet@nginx.com>
parents:
7249
diff
changeset
|
4454 copy->code = (ngx_http_script_code_pt) (void *) |
9e25a5380a21
Silenced -Wcast-function-type warnings (closes #1546).
Sergey Kandaurov <pluknet@nginx.com>
parents:
7249
diff
changeset
|
4455 ngx_http_script_copy_len_code; |
7233 | 4456 copy->len = src[i].key.len; |
4457 | |
4458 size = (sizeof(ngx_http_script_copy_code_t) | |
4459 + src[i].key.len + sizeof(uintptr_t) - 1) | |
4460 & ~(sizeof(uintptr_t) - 1); | |
4461 | |
4462 copy = ngx_array_push_n(headers->values, size); | |
4463 if (copy == NULL) { | |
4464 return NGX_ERROR; | |
4465 } | |
4466 | |
4467 copy->code = ngx_http_script_copy_code; | |
4468 copy->len = src[i].key.len; | |
4469 | |
4470 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t); | |
4471 ngx_memcpy(p, src[i].key.data, src[i].key.len); | |
4472 | |
4473 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); | |
4474 | |
4475 sc.cf = cf; | |
4476 sc.source = &src[i].value; | |
4477 sc.flushes = &headers->flushes; | |
4478 sc.lengths = &headers->lengths; | |
4479 sc.values = &headers->values; | |
4480 | |
4481 if (ngx_http_script_compile(&sc) != NGX_OK) { | |
4482 return NGX_ERROR; | |
4483 } | |
4484 | |
4485 code = ngx_array_push_n(headers->lengths, sizeof(uintptr_t)); | |
4486 if (code == NULL) { | |
4487 return NGX_ERROR; | |
4488 } | |
4489 | |
4490 *code = (uintptr_t) NULL; | |
4491 | |
4492 code = ngx_array_push_n(headers->values, sizeof(uintptr_t)); | |
4493 if (code == NULL) { | |
4494 return NGX_ERROR; | |
4495 } | |
4496 | |
4497 *code = (uintptr_t) NULL; | |
4498 } | |
4499 | |
4500 code = ngx_array_push_n(headers->lengths, sizeof(uintptr_t)); | |
4501 if (code == NULL) { | |
4502 return NGX_ERROR; | |
4503 } | |
4504 | |
4505 *code = (uintptr_t) NULL; | |
4506 | |
4507 | |
4508 hash.hash = &headers->hash; | |
4509 hash.key = ngx_hash_key_lc; | |
4510 hash.max_size = 512; | |
4511 hash.bucket_size = 64; | |
4512 hash.name = "grpc_headers_hash"; | |
4513 hash.pool = cf->pool; | |
4514 hash.temp_pool = NULL; | |
4515 | |
4516 return ngx_hash_init(&hash, headers_names.elts, headers_names.nelts); | |
4517 } | |
4518 | |
4519 | |
4520 static char * | |
4521 ngx_http_grpc_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
4522 { | |
4523 ngx_http_grpc_loc_conf_t *glcf = conf; | |
4524 | |
4525 size_t add; | |
4526 ngx_str_t *value, *url; | |
4527 ngx_url_t u; | |
4528 ngx_http_core_loc_conf_t *clcf; | |
4529 | |
4530 if (glcf->upstream.upstream) { | |
4531 return "is duplicate"; | |
4532 } | |
4533 | |
4534 value = cf->args->elts; | |
4535 url = &value[1]; | |
4536 | |
4537 if (ngx_strncasecmp(url->data, (u_char *) "grpc://", 7) == 0) { | |
4538 add = 7; | |
4539 | |
4540 } else if (ngx_strncasecmp(url->data, (u_char *) "grpcs://", 8) == 0) { | |
4541 | |
4542 #if (NGX_HTTP_SSL) | |
4543 glcf->ssl = 1; | |
4544 | |
4545 add = 8; | |
4546 #else | |
4547 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
4548 "grpcs protocol requires SSL support"); | |
4549 return NGX_CONF_ERROR; | |
4550 #endif | |
4551 | |
4552 } else { | |
4553 add = 0; | |
4554 } | |
4555 | |
4556 ngx_memzero(&u, sizeof(ngx_url_t)); | |
4557 | |
4558 u.url.len = url->len - add; | |
4559 u.url.data = url->data + add; | |
4560 u.no_resolve = 1; | |
4561 | |
4562 glcf->upstream.upstream = ngx_http_upstream_add(cf, &u, 0); | |
4563 if (glcf->upstream.upstream == NULL) { | |
4564 return NGX_CONF_ERROR; | |
4565 } | |
4566 | |
4567 if (u.family != AF_UNIX) { | |
4568 | |
4569 if (u.no_port) { | |
4570 glcf->host = u.host; | |
4571 | |
4572 } else { | |
4573 glcf->host.len = u.host.len + 1 + u.port_text.len; | |
4574 glcf->host.data = u.host.data; | |
4575 } | |
4576 | |
4577 } else { | |
4578 ngx_str_set(&glcf->host, "localhost"); | |
4579 } | |
4580 | |
4581 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); | |
4582 | |
4583 clcf->handler = ngx_http_grpc_handler; | |
4584 | |
7321
45e513c3540d
Fixed invalid access to location defined as an empty string.
Ruslan Ermilov <ru@nginx.com>
parents:
7320
diff
changeset
|
4585 if (clcf->name.len && clcf->name.data[clcf->name.len - 1] == '/') { |
7233 | 4586 clcf->auto_redirect = 1; |
4587 } | |
4588 | |
4589 return NGX_CONF_OK; | |
4590 } | |
4591 | |
4592 | |
4593 #if (NGX_HTTP_SSL) | |
4594 | |
4595 static char * | |
4596 ngx_http_grpc_ssl_password_file(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
4597 { | |
4598 ngx_http_grpc_loc_conf_t *glcf = conf; | |
4599 | |
4600 ngx_str_t *value; | |
4601 | |
4602 if (glcf->ssl_passwords != NGX_CONF_UNSET_PTR) { | |
4603 return "is duplicate"; | |
4604 } | |
4605 | |
4606 value = cf->args->elts; | |
4607 | |
4608 glcf->ssl_passwords = ngx_ssl_read_password_file(cf, &value[1]); | |
4609 | |
4610 if (glcf->ssl_passwords == NULL) { | |
4611 return NGX_CONF_ERROR; | |
4612 } | |
4613 | |
4614 return NGX_CONF_OK; | |
4615 } | |
4616 | |
4617 | |
4618 static ngx_int_t | |
4619 ngx_http_grpc_set_ssl(ngx_conf_t *cf, ngx_http_grpc_loc_conf_t *glcf) | |
4620 { | |
4621 ngx_pool_cleanup_t *cln; | |
4622 | |
4623 glcf->upstream.ssl = ngx_pcalloc(cf->pool, sizeof(ngx_ssl_t)); | |
4624 if (glcf->upstream.ssl == NULL) { | |
4625 return NGX_ERROR; | |
4626 } | |
4627 | |
4628 glcf->upstream.ssl->log = cf->log; | |
4629 | |
4630 if (ngx_ssl_create(glcf->upstream.ssl, glcf->ssl_protocols, NULL) | |
4631 != NGX_OK) | |
4632 { | |
4633 return NGX_ERROR; | |
4634 } | |
4635 | |
4636 cln = ngx_pool_cleanup_add(cf->pool, 0); | |
4637 if (cln == NULL) { | |
4638 return NGX_ERROR; | |
4639 } | |
4640 | |
4641 cln->handler = ngx_ssl_cleanup_ctx; | |
4642 cln->data = glcf->upstream.ssl; | |
4643 | |
4644 if (glcf->ssl_certificate.len) { | |
4645 | |
4646 if (glcf->ssl_certificate_key.len == 0) { | |
4647 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
4648 "no \"grpc_ssl_certificate_key\" is defined " | |
4649 "for certificate \"%V\"", &glcf->ssl_certificate); | |
4650 return NGX_ERROR; | |
4651 } | |
4652 | |
4653 if (ngx_ssl_certificate(cf, glcf->upstream.ssl, &glcf->ssl_certificate, | |
4654 &glcf->ssl_certificate_key, glcf->ssl_passwords) | |
4655 != NGX_OK) | |
4656 { | |
4657 return NGX_ERROR; | |
4658 } | |
4659 } | |
4660 | |
4661 if (ngx_ssl_ciphers(cf, glcf->upstream.ssl, &glcf->ssl_ciphers, 0) | |
4662 != NGX_OK) | |
4663 { | |
4664 return NGX_ERROR; | |
4665 } | |
4666 | |
4667 if (glcf->upstream.ssl_verify) { | |
4668 if (glcf->ssl_trusted_certificate.len == 0) { | |
4669 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
4670 "no grpc_ssl_trusted_certificate for grpc_ssl_verify"); | |
4671 return NGX_ERROR; | |
4672 } | |
4673 | |
4674 if (ngx_ssl_trusted_certificate(cf, glcf->upstream.ssl, | |
4675 &glcf->ssl_trusted_certificate, | |
4676 glcf->ssl_verify_depth) | |
4677 != NGX_OK) | |
4678 { | |
4679 return NGX_ERROR; | |
4680 } | |
4681 | |
4682 if (ngx_ssl_crl(cf, glcf->upstream.ssl, &glcf->ssl_crl) != NGX_OK) { | |
4683 return NGX_ERROR; | |
4684 } | |
4685 } | |
4686 | |
7320
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4687 if (ngx_ssl_client_session_cache(cf, glcf->upstream.ssl, |
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4688 glcf->upstream.ssl_session_reuse) |
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4689 != NGX_OK) |
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4690 { |
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4691 return NGX_ERROR; |
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4692 } |
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4693 |
7233 | 4694 #ifdef TLSEXT_TYPE_application_layer_protocol_negotiation |
4695 | |
4696 if (SSL_CTX_set_alpn_protos(glcf->upstream.ssl->ctx, | |
4697 (u_char *) "\x02h2", 3) | |
4698 != 0) | |
4699 { | |
4700 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0, | |
4701 "SSL_CTX_set_alpn_protos() failed"); | |
4702 return NGX_ERROR; | |
4703 } | |
4704 | |
4705 #endif | |
4706 | |
4707 return NGX_OK; | |
4708 } | |
4709 | |
4710 #endif |